Project import
diff --git a/libhardware/Android.bp b/libhardware/Android.bp
new file mode 100644
index 0000000..f093c56
--- /dev/null
+++ b/libhardware/Android.bp
@@ -0,0 +1,18 @@
+// Copyright 2006 The Android Open Source Project
+
+cc_library_shared {
+ name: "libhardware",
+
+ srcs: ["hardware.c"],
+ shared_libs: [
+ "libcutils",
+ "liblog",
+ "libdl",
+ ],
+ cflags: ["-DQEMU_HARDWARE"],
+}
+
+subdirs = [
+ "modules/*",
+ "tests/*",
+]
diff --git a/libhardware/Android.mk b/libhardware/Android.mk
new file mode 100644
index 0000000..8744f46
--- /dev/null
+++ b/libhardware/Android.mk
@@ -0,0 +1,3 @@
+# Copyright 2006 The Android Open Source Project
+
+include $(call all-named-subdir-makefiles,modules tests)
diff --git a/libhardware/CleanSpec.mk b/libhardware/CleanSpec.mk
new file mode 100644
index 0000000..b84e1b6
--- /dev/null
+++ b/libhardware/CleanSpec.mk
@@ -0,0 +1,49 @@
+# Copyright (C) 2007 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# If you don't need to do a full clean build but would like to touch
+# a file or delete some intermediate files, add a clean step to the end
+# of the list. These steps will only be run once, if they haven't been
+# run before.
+#
+# E.g.:
+# $(call add-clean-step, touch -c external/sqlite/sqlite3.h)
+# $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/libz_intermediates)
+#
+# Always use "touch -c" and "rm -f" or "rm -rf" to gracefully deal with
+# files that are missing or have been moved.
+#
+# Use $(PRODUCT_OUT) to get to the "out/target/product/blah/" directory.
+# Use $(OUT_DIR) to refer to the "out" directory.
+#
+# If you need to re-do something that's already mentioned, just copy
+# the command and add it to the bottom of the list. E.g., if a change
+# that you made last week required touching a file and a change you
+# made today requires touching the same file, just copy the old
+# touch step and add it to the end of the list.
+#
+# ************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
+# ************************************************
+
+# For example:
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/APPS/AndroidTests_intermediates)
+#$(call add-clean-step, rm -rf $(OUT_DIR)/target/common/obj/JAVA_LIBRARIES/core_intermediates)
+#$(call add-clean-step, find $(OUT_DIR) -type f -name "IGTalkSession*" -print0 | xargs -0 rm -f)
+#$(call add-clean-step, rm -rf $(PRODUCT_OUT)/data/*)
+
+# ************************************************
+# NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
+# ************************************************
diff --git a/libhardware/MODULE_LICENSE_APACHE2 b/libhardware/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/libhardware/MODULE_LICENSE_APACHE2
diff --git a/libhardware/NOTICE b/libhardware/NOTICE
new file mode 100644
index 0000000..c5b1efa
--- /dev/null
+++ b/libhardware/NOTICE
@@ -0,0 +1,190 @@
+
+ Copyright (c) 2005-2008, The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+
+
+ Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
+ and distribution as defined by Sections 1 through 9 of this document.
+
+ "Licensor" shall mean the copyright owner or entity authorized by
+ the copyright owner that is granting the License.
+
+ "Legal Entity" shall mean the union of the acting entity and all
+ other entities that control, are controlled by, or are under common
+ control with that entity. For the purposes of this definition,
+ "control" means (i) the power, direct or indirect, to cause the
+ direction or management of such entity, whether by contract or
+ otherwise, or (ii) ownership of fifty percent (50%) or more of the
+ outstanding shares, or (iii) beneficial ownership of such entity.
+
+ "You" (or "Your") shall mean an individual or Legal Entity
+ exercising permissions granted by this License.
+
+ "Source" form shall mean the preferred form for making modifications,
+ including but not limited to software source code, documentation
+ source, and configuration files.
+
+ "Object" form shall mean any form resulting from mechanical
+ transformation or translation of a Source form, including but
+ not limited to compiled object code, generated documentation,
+ and conversions to other media types.
+
+ "Work" shall mean the work of authorship, whether in Source or
+ Object form, made available under the License, as indicated by a
+ copyright notice that is included in or attached to the work
+ (an example is provided in the Appendix below).
+
+ "Derivative Works" shall mean any work, whether in Source or Object
+ form, that is based on (or derived from) the Work and for which the
+ editorial revisions, annotations, elaborations, or other modifications
+ represent, as a whole, an original work of authorship. For the purposes
+ of this License, Derivative Works shall not include works that remain
+ separable from, or merely link (or bind by name) to the interfaces of,
+ the Work and Derivative Works thereof.
+
+ "Contribution" shall mean any work of authorship, including
+ the original version of the Work and any modifications or additions
+ to that Work or Derivative Works thereof, that is intentionally
+ submitted to Licensor for inclusion in the Work by the copyright owner
+ or by an individual or Legal Entity authorized to submit on behalf of
+ the copyright owner. For the purposes of this definition, "submitted"
+ means any form of electronic, verbal, or written communication sent
+ to the Licensor or its representatives, including but not limited to
+ communication on electronic mailing lists, source code control systems,
+ and issue tracking systems that are managed by, or on behalf of, the
+ Licensor for the purpose of discussing and improving the Work, but
+ excluding communication that is conspicuously marked or otherwise
+ designated in writing by the copyright owner as "Not a Contribution."
+
+ "Contributor" shall mean Licensor and any individual or Legal Entity
+ on behalf of whom a Contribution has been received by Licensor and
+ subsequently incorporated within the Work.
+
+ 2. Grant of Copyright License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ copyright license to reproduce, prepare Derivative Works of,
+ publicly display, publicly perform, sublicense, and distribute the
+ Work and such Derivative Works in Source or Object form.
+
+ 3. Grant of Patent License. Subject to the terms and conditions of
+ this License, each Contributor hereby grants to You a perpetual,
+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+ (except as stated in this section) patent license to make, have made,
+ use, offer to sell, sell, import, and otherwise transfer the Work,
+ where such license applies only to those patent claims licensable
+ by such Contributor that are necessarily infringed by their
+ Contribution(s) alone or by combination of their Contribution(s)
+ with the Work to which such Contribution(s) was submitted. If You
+ institute patent litigation against any entity (including a
+ cross-claim or counterclaim in a lawsuit) alleging that the Work
+ or a Contribution incorporated within the Work constitutes direct
+ or contributory patent infringement, then any patent licenses
+ granted to You under this License for that Work shall terminate
+ as of the date such litigation is filed.
+
+ 4. Redistribution. You may reproduce and distribute copies of the
+ Work or Derivative Works thereof in any medium, with or without
+ modifications, and in Source or Object form, provided that You
+ meet the following conditions:
+
+ (a) You must give any other recipients of the Work or
+ Derivative Works a copy of this License; and
+
+ (b) You must cause any modified files to carry prominent notices
+ stating that You changed the files; and
+
+ (c) You must retain, in the Source form of any Derivative Works
+ that You distribute, all copyright, patent, trademark, and
+ attribution notices from the Source form of the Work,
+ excluding those notices that do not pertain to any part of
+ the Derivative Works; and
+
+ (d) If the Work includes a "NOTICE" text file as part of its
+ distribution, then any Derivative Works that You distribute must
+ include a readable copy of the attribution notices contained
+ within such NOTICE file, excluding those notices that do not
+ pertain to any part of the Derivative Works, in at least one
+ of the following places: within a NOTICE text file distributed
+ as part of the Derivative Works; within the Source form or
+ documentation, if provided along with the Derivative Works; or,
+ within a display generated by the Derivative Works, if and
+ wherever such third-party notices normally appear. The contents
+ of the NOTICE file are for informational purposes only and
+ do not modify the License. You may add Your own attribution
+ notices within Derivative Works that You distribute, alongside
+ or as an addendum to the NOTICE text from the Work, provided
+ that such additional attribution notices cannot be construed
+ as modifying the License.
+
+ You may add Your own copyright statement to Your modifications and
+ may provide additional or different license terms and conditions
+ for use, reproduction, or distribution of Your modifications, or
+ for any such Derivative Works as a whole, provided Your use,
+ reproduction, and distribution of the Work otherwise complies with
+ the conditions stated in this License.
+
+ 5. Submission of Contributions. Unless You explicitly state otherwise,
+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
+ with Licensor regarding such Contributions.
+
+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
+ except as required for reasonable and customary use in describing the
+ origin of the Work and reproducing the content of the NOTICE file.
+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ implied, including, without limitation, any warranties or conditions
+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+ PARTICULAR PURPOSE. You are solely responsible for determining the
+ appropriateness of using or redistributing the Work and assume any
+ risks associated with Your exercise of permissions under this License.
+
+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
+ unless required by applicable law (such as deliberate and grossly
+ negligent acts) or agreed to in writing, shall any Contributor be
+ liable to You for damages, including any direct, indirect, special,
+ incidental, or consequential damages of any character arising as a
+ result of this License or out of the use or inability to use the
+ Work (including but not limited to damages for loss of goodwill,
+ work stoppage, computer failure or malfunction, or any and all
+ other commercial damages or losses), even if such Contributor
+ has been advised of the possibility of such damages.
+
+ 9. Accepting Warranty or Additional Liability. While redistributing
+ the Work or Derivative Works thereof, You may choose to offer,
+ and charge a fee for, acceptance of support, warranty, indemnity,
+ or other liability obligations and/or rights consistent with this
+ License. However, in accepting such obligations, You may act only
+ on Your own behalf and on Your sole responsibility, not on behalf
+ of any other Contributor, and only if You agree to indemnify,
+ defend, and hold each Contributor harmless for any liability
+ incurred by, or claims asserted against, such Contributor by reason
+ of your accepting any such warranty or additional liability.
+
+ END OF TERMS AND CONDITIONS
+
diff --git a/libhardware/hardware.c b/libhardware/hardware.c
new file mode 100644
index 0000000..79d0a2f
--- /dev/null
+++ b/libhardware/hardware.c
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hardware/hardware.h>
+
+#include <cutils/properties.h>
+
+#include <dlfcn.h>
+#include <string.h>
+#include <pthread.h>
+#include <errno.h>
+#include <limits.h>
+
+#define LOG_TAG "HAL"
+#include <utils/Log.h>
+
+/** Base path of the hal modules */
+#if defined(__LP64__)
+#define HAL_LIBRARY_PATH1 "/system/lib64/hw"
+#define HAL_LIBRARY_PATH2 "/vendor/lib64/hw"
+#else
+#define HAL_LIBRARY_PATH1 "/system/lib/hw"
+#define HAL_LIBRARY_PATH2 "/vendor/lib/hw"
+#endif
+
+/**
+ * There are a set of variant filename for modules. The form of the filename
+ * is "<MODULE_ID>.variant.so" so for the led module the Dream variants
+ * of base "ro.product.board", "ro.board.platform" and "ro.arch" would be:
+ *
+ * led.trout.so
+ * led.msm7k.so
+ * led.ARMV6.so
+ * led.default.so
+ */
+
+static const char *variant_keys[] = {
+ "ro.hardware", /* This goes first so that it can pick up a different
+ file on the emulator. */
+ "ro.product.board",
+ "ro.board.platform",
+ "ro.arch"
+};
+
+static const int HAL_VARIANT_KEYS_COUNT =
+ (sizeof(variant_keys)/sizeof(variant_keys[0]));
+
+/**
+ * Load the file defined by the variant and if successful
+ * return the dlopen handle and the hmi.
+ * @return 0 = success, !0 = failure.
+ */
+static int load(const char *id,
+ const char *path,
+ const struct hw_module_t **pHmi)
+{
+ int status = -EINVAL;
+ void *handle = NULL;
+ struct hw_module_t *hmi = NULL;
+
+ /*
+ * load the symbols resolving undefined symbols before
+ * dlopen returns. Since RTLD_GLOBAL is not or'd in with
+ * RTLD_NOW the external symbols will not be global
+ */
+ handle = dlopen(path, RTLD_NOW);
+ if (handle == NULL) {
+ char const *err_str = dlerror();
+ ALOGE("load: module=%s\n%s", path, err_str?err_str:"unknown");
+ status = -EINVAL;
+ goto done;
+ }
+
+ /* Get the address of the struct hal_module_info. */
+ const char *sym = HAL_MODULE_INFO_SYM_AS_STR;
+ hmi = (struct hw_module_t *)dlsym(handle, sym);
+ if (hmi == NULL) {
+ ALOGE("load: couldn't find symbol %s", sym);
+ status = -EINVAL;
+ goto done;
+ }
+
+ /* Check that the id matches */
+ if (strcmp(id, hmi->id) != 0) {
+ ALOGE("load: id=%s != hmi->id=%s", id, hmi->id);
+ status = -EINVAL;
+ goto done;
+ }
+
+ hmi->dso = handle;
+
+ /* success */
+ status = 0;
+
+ done:
+ if (status != 0) {
+ hmi = NULL;
+ if (handle != NULL) {
+ dlclose(handle);
+ handle = NULL;
+ }
+ } else {
+ ALOGV("loaded HAL id=%s path=%s hmi=%p handle=%p",
+ id, path, *pHmi, handle);
+ }
+
+ *pHmi = hmi;
+
+ return status;
+}
+
+/*
+ * Check if a HAL with given name and subname exists, if so return 0, otherwise
+ * otherwise return negative. On success path will contain the path to the HAL.
+ */
+static int hw_module_exists(char *path, size_t path_len, const char *name,
+ const char *subname)
+{
+ snprintf(path, path_len, "%s/%s.%s.so",
+ HAL_LIBRARY_PATH2, name, subname);
+ if (access(path, R_OK) == 0)
+ return 0;
+
+ snprintf(path, path_len, "%s/%s.%s.so",
+ HAL_LIBRARY_PATH1, name, subname);
+ if (access(path, R_OK) == 0)
+ return 0;
+
+ return -ENOENT;
+}
+
+int hw_get_module_by_class(const char *class_id, const char *inst,
+ const struct hw_module_t **module)
+{
+ int i = 0;
+ char prop[PATH_MAX] = {0};
+ char path[PATH_MAX] = {0};
+ char name[PATH_MAX] = {0};
+ char prop_name[PATH_MAX] = {0};
+
+
+ if (inst)
+ snprintf(name, PATH_MAX, "%s.%s", class_id, inst);
+ else
+ strlcpy(name, class_id, PATH_MAX);
+
+ /*
+ * Here we rely on the fact that calling dlopen multiple times on
+ * the same .so will simply increment a refcount (and not load
+ * a new copy of the library).
+ * We also assume that dlopen() is thread-safe.
+ */
+
+ /* First try a property specific to the class and possibly instance */
+ snprintf(prop_name, sizeof(prop_name), "ro.hardware.%s", name);
+ if (property_get(prop_name, prop, NULL) > 0) {
+ if (hw_module_exists(path, sizeof(path), name, prop) == 0) {
+ goto found;
+ }
+ }
+
+ /* Loop through the configuration variants looking for a module */
+ for (i=0 ; i<HAL_VARIANT_KEYS_COUNT; i++) {
+ if (property_get(variant_keys[i], prop, NULL) == 0) {
+ continue;
+ }
+ if (hw_module_exists(path, sizeof(path), name, prop) == 0) {
+ goto found;
+ }
+ }
+
+ /* Nothing found, try the default */
+ if (hw_module_exists(path, sizeof(path), name, "default") == 0) {
+ goto found;
+ }
+
+ return -ENOENT;
+
+found:
+ /* load the module, if this fails, we're doomed, and we should not try
+ * to load a different variant. */
+ return load(class_id, path, module);
+}
+
+int hw_get_module(const char *id, const struct hw_module_t **module)
+{
+ return hw_get_module_by_class(id, NULL, module);
+}
diff --git a/libhardware/include/hardware/activity_recognition.h b/libhardware/include/hardware/activity_recognition.h
new file mode 100644
index 0000000..8f99459
--- /dev/null
+++ b/libhardware/include/hardware/activity_recognition.h
@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * Activity Recognition HAL. The goal is to provide low power, low latency, always-on activity
+ * recognition implemented in hardware (i.e. these activity recognition algorithms/classifers
+ * should NOT be run on the AP). By low power we mean that this may be activated 24/7 without
+ * impacting the battery drain speed (goal in order of 1mW including the power for sensors).
+ * This HAL does not specify the input sources that are used towards detecting these activities.
+ * It has one monitor interface which can be used to batch activities for always-on
+ * activity_recognition and if the latency is zero, the same interface can be used for low latency
+ * detection.
+ */
+
+#ifndef ANDROID_ACTIVITY_RECOGNITION_INTERFACE_H
+#define ANDROID_ACTIVITY_RECOGNITION_INTERFACE_H
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define ACTIVITY_RECOGNITION_HEADER_VERSION 1
+#define ACTIVITY_RECOGNITION_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION_2(0, 1, ACTIVITY_RECOGNITION_HEADER_VERSION)
+
+#define ACTIVITY_RECOGNITION_HARDWARE_MODULE_ID "activity_recognition"
+#define ACTIVITY_RECOGNITION_HARDWARE_INTERFACE "activity_recognition_hw_if"
+
+/*
+ * Define types for various activities. Multiple activities may be active at the same time and
+ * sometimes none of these activities may be active.
+ *
+ * Each activity has a corresponding type. Only activities that are defined here should use
+ * android.activity_recognition.* prefix. OEM defined activities should not use this prefix.
+ * Activity type of OEM-defined activities should start with the reverse domain name of the entity
+ * defining the activity.
+ *
+ * When android introduces a new activity type that can potentially replace an OEM-defined activity
+ * type, the OEM must use the official activity type on versions of the HAL that support this new
+ * official activity type.
+ *
+ * Example (made up): Suppose Google's Glass team wants to detect nodding activity.
+ * - Such an activity is not officially supported in android L
+ * - Glass devices launching on L can implement a custom activity with
+ * type = "com.google.glass.nodding"
+ * - In M android release, if android decides to define ACITIVITY_TYPE_NODDING, those types
+ * should replace the Glass-team-specific types in all future launches.
+ * - When launching glass on the M release, Google should now use the official activity type
+ * - This way, other applications can use this activity.
+ */
+
+#define ACTIVITY_TYPE_IN_VEHICLE "android.activity_recognition.in_vehicle"
+
+#define ACTIVITY_TYPE_ON_BICYCLE "android.activity_recognition.on_bicycle"
+
+#define ACTIVITY_TYPE_WALKING "android.activity_recognition.walking"
+
+#define ACTIVITY_TYPE_RUNNING "android.activity_recognition.running"
+
+#define ACTIVITY_TYPE_STILL "android.activity_recognition.still"
+
+#define ACTIVITY_TYPE_TILTING "android.activity_recognition.tilting"
+
+/* Values for activity_event.event_types. */
+enum {
+ /*
+ * A flush_complete event which indicates that a flush() has been successfully completed. This
+ * does not correspond to any activity/event. An event of this type should be added to the end
+ * of a batch FIFO and it indicates that all the events in the batch FIFO have been successfully
+ * reported to the framework. An event of this type should be generated only if flush() has been
+ * explicitly called and if the FIFO is empty at the time flush() is called it should trivially
+ * return a flush_complete_event to indicate that the FIFO is empty.
+ *
+ * A flush complete event should have the following parameters set.
+ * activity_event_t.event_type = ACTIVITY_EVENT_FLUSH_COMPLETE
+ * activity_event_t.activity = 0
+ * activity_event_t.timestamp = 0
+ * activity_event_t.reserved = 0
+ * See (*flush)() for more details.
+ */
+ ACTIVITY_EVENT_FLUSH_COMPLETE = 0,
+
+ /* Signifies entering an activity. */
+ ACTIVITY_EVENT_ENTER = 1,
+
+ /* Signifies exiting an activity. */
+ ACTIVITY_EVENT_EXIT = 2
+};
+
+/*
+ * Each event is a separate activity with event_type indicating whether this activity has started
+ * or ended. Eg event: (event_type="enter", activity="ON_FOOT", timestamp)
+ */
+typedef struct activity_event {
+ /* One of the ACTIVITY_EVENT_* constants defined above. */
+ uint32_t event_type;
+
+ /*
+ * Index of the activity in the list returned by get_supported_activities_list. If this event
+ * is a flush complete event, this should be set to zero.
+ */
+ uint32_t activity;
+
+ /* Time at which the transition/event has occurred in nanoseconds using elapsedRealTimeNano. */
+ int64_t timestamp;
+
+ /* Set to zero. */
+ int32_t reserved[4];
+} activity_event_t;
+
+typedef struct activity_recognition_module {
+ /**
+ * Common methods of the activity recognition module. This *must* be the first member of
+ * activity_recognition_module as users of this structure will cast a hw_module_t to
+ * activity_recognition_module pointer in contexts where it's known the hw_module_t
+ * references an activity_recognition_module.
+ */
+ hw_module_t common;
+
+ /*
+ * List of all activities supported by this module including OEM defined activities. Each
+ * activity is represented using a string defined above. Each string should be null terminated.
+ * The index of the activity in this array is used as a "handle" for enabling/disabling and
+ * event delivery.
+ * Return value is the size of this list.
+ */
+ int (*get_supported_activities_list)(struct activity_recognition_module* module,
+ char const* const* *activity_list);
+} activity_recognition_module_t;
+
+struct activity_recognition_device;
+
+typedef struct activity_recognition_callback_procs {
+ // Callback for activity_data. This is guaranteed to not invoke any HAL methods.
+ // Memory allocated for the events can be reused after this method returns.
+ // events - Array of activity_event_t s that are reported.
+ // count - size of the array.
+ void (*activity_callback)(const struct activity_recognition_callback_procs* procs,
+ const activity_event_t* events, int count);
+} activity_recognition_callback_procs_t;
+
+typedef struct activity_recognition_device {
+ /**
+ * Common methods of the activity recognition device. This *must* be the first member of
+ * activity_recognition_device as users of this structure will cast a hw_device_t to
+ * activity_recognition_device pointer in contexts where it's known the hw_device_t
+ * references an activity_recognition_device.
+ */
+ hw_device_t common;
+
+ /*
+ * Sets the callback to invoke when there are events to report. This call overwrites the
+ * previously registered callback (if any).
+ */
+ void (*register_activity_callback)(const struct activity_recognition_device* dev,
+ const activity_recognition_callback_procs_t* callback);
+
+ /*
+ * Activates monitoring of activity transitions. Activities need not be reported as soon as they
+ * are detected. The detected activities are stored in a FIFO and reported in batches when the
+ * "max_batch_report_latency" expires or when the batch FIFO is full. The implementation should
+ * allow the AP to go into suspend mode while the activities are detected and stored in the
+ * batch FIFO. Whenever events need to be reported (like when the FIFO is full or when the
+ * max_batch_report_latency has expired for an activity, event pair), it should wake_up the AP
+ * so that no events are lost. Activities are stored as transitions and they are allowed to
+ * overlap with each other. Each (activity, event_type) pair can be activated or deactivated
+ * independently of the other. The HAL implementation needs to keep track of which pairs are
+ * currently active and needs to detect only those pairs.
+ *
+ * activity_handle - Index of the specific activity that needs to be detected in the list
+ * returned by get_supported_activities_list.
+ * event_type - Specific transition of the activity that needs to be detected.
+ * max_batch_report_latency_ns - a transition can be delayed by at most
+ * “max_batch_report_latency” nanoseconds.
+ * Return 0 on success, negative errno code otherwise.
+ */
+ int (*enable_activity_event)(const struct activity_recognition_device* dev,
+ uint32_t activity_handle, uint32_t event_type, int64_t max_batch_report_latency_ns);
+
+ /*
+ * Disables detection of a specific (activity, event_type) pair.
+ */
+ int (*disable_activity_event)(const struct activity_recognition_device* dev,
+ uint32_t activity_handle, uint32_t event_type);
+
+ /*
+ * Flush all the batch FIFOs. Report all the activities that were stored in the FIFO so far as
+ * if max_batch_report_latency had expired. This shouldn't change the latency in any way. Add
+ * a flush_complete_event to indicate the end of the FIFO after all events are delivered.
+ * See ACTIVITY_EVENT_FLUSH_COMPLETE for more details.
+ * Return 0 on success, negative errno code otherwise.
+ */
+ int (*flush)(const struct activity_recognition_device* dev);
+
+ // Must be set to NULL.
+ void (*reserved_procs[16 - 4])(void);
+} activity_recognition_device_t;
+
+static inline int activity_recognition_open(const hw_module_t* module,
+ activity_recognition_device_t** device) {
+ return module->methods->open(module,
+ ACTIVITY_RECOGNITION_HARDWARE_INTERFACE, (hw_device_t**)device);
+}
+
+static inline int activity_recognition_close(activity_recognition_device_t* device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_ACTIVITY_RECOGNITION_INTERFACE_H
diff --git a/libhardware/include/hardware/audio.h b/libhardware/include/hardware/audio.h
new file mode 100644
index 0000000..2389c09
--- /dev/null
+++ b/libhardware/include/hardware/audio.h
@@ -0,0 +1,672 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_AUDIO_HAL_INTERFACE_H
+#define ANDROID_AUDIO_HAL_INTERFACE_H
+
+#include <stdint.h>
+#include <strings.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <cutils/bitops.h>
+
+#include <hardware/hardware.h>
+#include <system/audio.h>
+#include <hardware/audio_effect.h>
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define AUDIO_HARDWARE_MODULE_ID "audio"
+
+/**
+ * Name of the audio devices to open
+ */
+#define AUDIO_HARDWARE_INTERFACE "audio_hw_if"
+
+
+/* Use version 0.1 to be compatible with first generation of audio hw module with version_major
+ * hardcoded to 1. No audio module API change.
+ */
+#define AUDIO_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+#define AUDIO_MODULE_API_VERSION_CURRENT AUDIO_MODULE_API_VERSION_0_1
+
+/* First generation of audio devices had version hardcoded to 0. all devices with versions < 1.0
+ * will be considered of first generation API.
+ */
+#define AUDIO_DEVICE_API_VERSION_0_0 HARDWARE_DEVICE_API_VERSION(0, 0)
+#define AUDIO_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION(1, 0)
+#define AUDIO_DEVICE_API_VERSION_2_0 HARDWARE_DEVICE_API_VERSION(2, 0)
+#define AUDIO_DEVICE_API_VERSION_3_0 HARDWARE_DEVICE_API_VERSION(3, 0)
+#define AUDIO_DEVICE_API_VERSION_CURRENT AUDIO_DEVICE_API_VERSION_3_0
+/* Minimal audio HAL version supported by the audio framework */
+#define AUDIO_DEVICE_API_VERSION_MIN AUDIO_DEVICE_API_VERSION_2_0
+
+/**
+ * List of known audio HAL modules. This is the base name of the audio HAL
+ * library composed of the "audio." prefix, one of the base names below and
+ * a suffix specific to the device.
+ * e.g: audio.primary.goldfish.so or audio.a2dp.default.so
+ */
+
+#define AUDIO_HARDWARE_MODULE_ID_PRIMARY "primary"
+#define AUDIO_HARDWARE_MODULE_ID_A2DP "a2dp"
+#define AUDIO_HARDWARE_MODULE_ID_USB "usb"
+#define AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX "r_submix"
+#define AUDIO_HARDWARE_MODULE_ID_CODEC_OFFLOAD "codec_offload"
+
+/**************************************/
+
+/**
+ * standard audio parameters that the HAL may need to handle
+ */
+
+/**
+ * audio device parameters
+ */
+
+/* BT SCO Noise Reduction + Echo Cancellation parameters */
+#define AUDIO_PARAMETER_KEY_BT_NREC "bt_headset_nrec"
+#define AUDIO_PARAMETER_VALUE_ON "on"
+#define AUDIO_PARAMETER_VALUE_OFF "off"
+
+/* TTY mode selection */
+#define AUDIO_PARAMETER_KEY_TTY_MODE "tty_mode"
+#define AUDIO_PARAMETER_VALUE_TTY_OFF "tty_off"
+#define AUDIO_PARAMETER_VALUE_TTY_VCO "tty_vco"
+#define AUDIO_PARAMETER_VALUE_TTY_HCO "tty_hco"
+#define AUDIO_PARAMETER_VALUE_TTY_FULL "tty_full"
+
+/* Hearing Aid Compatibility - Telecoil (HAC-T) mode on/off
+ Strings must be in sync with CallFeaturesSetting.java */
+#define AUDIO_PARAMETER_KEY_HAC "HACSetting"
+#define AUDIO_PARAMETER_VALUE_HAC_ON "ON"
+#define AUDIO_PARAMETER_VALUE_HAC_OFF "OFF"
+
+/* A2DP sink address set by framework */
+#define AUDIO_PARAMETER_A2DP_SINK_ADDRESS "a2dp_sink_address"
+
+/* A2DP source address set by framework */
+#define AUDIO_PARAMETER_A2DP_SOURCE_ADDRESS "a2dp_source_address"
+
+/* Screen state */
+#define AUDIO_PARAMETER_KEY_SCREEN_STATE "screen_state"
+
+/* Bluetooth SCO wideband */
+#define AUDIO_PARAMETER_KEY_BT_SCO_WB "bt_wbs"
+
+/* Get a new HW synchronization source identifier.
+ * Return a valid source (positive integer) or AUDIO_HW_SYNC_INVALID if an error occurs
+ * or no HW sync is available. */
+#define AUDIO_PARAMETER_HW_AV_SYNC "hw_av_sync"
+
+/**
+ * audio stream parameters
+ */
+
+#define AUDIO_PARAMETER_STREAM_ROUTING "routing" /* audio_devices_t */
+#define AUDIO_PARAMETER_STREAM_FORMAT "format" /* audio_format_t */
+#define AUDIO_PARAMETER_STREAM_CHANNELS "channels" /* audio_channel_mask_t */
+#define AUDIO_PARAMETER_STREAM_FRAME_COUNT "frame_count" /* size_t */
+#define AUDIO_PARAMETER_STREAM_INPUT_SOURCE "input_source" /* audio_source_t */
+#define AUDIO_PARAMETER_STREAM_SAMPLING_RATE "sampling_rate" /* uint32_t */
+
+#define AUDIO_PARAMETER_DEVICE_CONNECT "connect" /* audio_devices_t */
+#define AUDIO_PARAMETER_DEVICE_DISCONNECT "disconnect" /* audio_devices_t */
+
+/* Query supported formats. The response is a '|' separated list of strings from
+ * audio_format_t enum e.g: "sup_formats=AUDIO_FORMAT_PCM_16_BIT" */
+#define AUDIO_PARAMETER_STREAM_SUP_FORMATS "sup_formats"
+/* Query supported channel masks. The response is a '|' separated list of strings from
+ * audio_channel_mask_t enum e.g: "sup_channels=AUDIO_CHANNEL_OUT_STEREO|AUDIO_CHANNEL_OUT_MONO" */
+#define AUDIO_PARAMETER_STREAM_SUP_CHANNELS "sup_channels"
+/* Query supported sampling rates. The response is a '|' separated list of integer values e.g:
+ * "sup_sampling_rates=44100|48000" */
+#define AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES "sup_sampling_rates"
+
+/* Set the HW synchronization source for an output stream. */
+#define AUDIO_PARAMETER_STREAM_HW_AV_SYNC "hw_av_sync"
+
+/**
+ * audio codec parameters
+ */
+
+#define AUDIO_OFFLOAD_CODEC_PARAMS "music_offload_codec_param"
+#define AUDIO_OFFLOAD_CODEC_BIT_PER_SAMPLE "music_offload_bit_per_sample"
+#define AUDIO_OFFLOAD_CODEC_BIT_RATE "music_offload_bit_rate"
+#define AUDIO_OFFLOAD_CODEC_AVG_BIT_RATE "music_offload_avg_bit_rate"
+#define AUDIO_OFFLOAD_CODEC_ID "music_offload_codec_id"
+#define AUDIO_OFFLOAD_CODEC_BLOCK_ALIGN "music_offload_block_align"
+#define AUDIO_OFFLOAD_CODEC_SAMPLE_RATE "music_offload_sample_rate"
+#define AUDIO_OFFLOAD_CODEC_ENCODE_OPTION "music_offload_encode_option"
+#define AUDIO_OFFLOAD_CODEC_NUM_CHANNEL "music_offload_num_channels"
+#define AUDIO_OFFLOAD_CODEC_DOWN_SAMPLING "music_offload_down_sampling"
+#define AUDIO_OFFLOAD_CODEC_DELAY_SAMPLES "delay_samples"
+#define AUDIO_OFFLOAD_CODEC_PADDING_SAMPLES "padding_samples"
+
+/**************************************/
+
+/* common audio stream parameters and operations */
+struct audio_stream {
+
+ /**
+ * Return the sampling rate in Hz - eg. 44100.
+ */
+ uint32_t (*get_sample_rate)(const struct audio_stream *stream);
+
+ /* currently unused - use set_parameters with key
+ * AUDIO_PARAMETER_STREAM_SAMPLING_RATE
+ */
+ int (*set_sample_rate)(struct audio_stream *stream, uint32_t rate);
+
+ /**
+ * Return size of input/output buffer in bytes for this stream - eg. 4800.
+ * It should be a multiple of the frame size. See also get_input_buffer_size.
+ */
+ size_t (*get_buffer_size)(const struct audio_stream *stream);
+
+ /**
+ * Return the channel mask -
+ * e.g. AUDIO_CHANNEL_OUT_STEREO or AUDIO_CHANNEL_IN_STEREO
+ */
+ audio_channel_mask_t (*get_channels)(const struct audio_stream *stream);
+
+ /**
+ * Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT
+ */
+ audio_format_t (*get_format)(const struct audio_stream *stream);
+
+ /* currently unused - use set_parameters with key
+ * AUDIO_PARAMETER_STREAM_FORMAT
+ */
+ int (*set_format)(struct audio_stream *stream, audio_format_t format);
+
+ /**
+ * Put the audio hardware input/output into standby mode.
+ * Driver should exit from standby mode at the next I/O operation.
+ * Returns 0 on success and <0 on failure.
+ */
+ int (*standby)(struct audio_stream *stream);
+
+ /** dump the state of the audio input/output device */
+ int (*dump)(const struct audio_stream *stream, int fd);
+
+ /** Return the set of device(s) which this stream is connected to */
+ audio_devices_t (*get_device)(const struct audio_stream *stream);
+
+ /**
+ * Currently unused - set_device() corresponds to set_parameters() with key
+ * AUDIO_PARAMETER_STREAM_ROUTING for both input and output.
+ * AUDIO_PARAMETER_STREAM_INPUT_SOURCE is an additional information used by
+ * input streams only.
+ */
+ int (*set_device)(struct audio_stream *stream, audio_devices_t device);
+
+ /**
+ * set/get audio stream parameters. The function accepts a list of
+ * parameter key value pairs in the form: key1=value1;key2=value2;...
+ *
+ * Some keys are reserved for standard parameters (See AudioParameter class)
+ *
+ * If the implementation does not accept a parameter change while
+ * the output is active but the parameter is acceptable otherwise, it must
+ * return -ENOSYS.
+ *
+ * The audio flinger will put the stream in standby and then change the
+ * parameter value.
+ */
+ int (*set_parameters)(struct audio_stream *stream, const char *kv_pairs);
+
+ /*
+ * Returns a pointer to a heap allocated string. The caller is responsible
+ * for freeing the memory for it using free().
+ */
+ char * (*get_parameters)(const struct audio_stream *stream,
+ const char *keys);
+ int (*add_audio_effect)(const struct audio_stream *stream,
+ effect_handle_t effect);
+ int (*remove_audio_effect)(const struct audio_stream *stream,
+ effect_handle_t effect);
+};
+typedef struct audio_stream audio_stream_t;
+
+/* type of asynchronous write callback events. Mutually exclusive */
+typedef enum {
+ STREAM_CBK_EVENT_WRITE_READY, /* non blocking write completed */
+ STREAM_CBK_EVENT_DRAIN_READY /* drain completed */
+} stream_callback_event_t;
+
+typedef int (*stream_callback_t)(stream_callback_event_t event, void *param, void *cookie);
+
+/* type of drain requested to audio_stream_out->drain(). Mutually exclusive */
+typedef enum {
+ AUDIO_DRAIN_ALL, /* drain() returns when all data has been played */
+ AUDIO_DRAIN_EARLY_NOTIFY /* drain() returns a short time before all data
+ from the current track has been played to
+ give time for gapless track switch */
+} audio_drain_type_t;
+
+/**
+ * audio_stream_out is the abstraction interface for the audio output hardware.
+ *
+ * It provides information about various properties of the audio output
+ * hardware driver.
+ */
+
+struct audio_stream_out {
+ /**
+ * Common methods of the audio stream out. This *must* be the first member of audio_stream_out
+ * as users of this structure will cast a audio_stream to audio_stream_out pointer in contexts
+ * where it's known the audio_stream references an audio_stream_out.
+ */
+ struct audio_stream common;
+
+ /**
+ * Return the audio hardware driver estimated latency in milliseconds.
+ */
+ uint32_t (*get_latency)(const struct audio_stream_out *stream);
+
+ /**
+ * Use this method in situations where audio mixing is done in the
+ * hardware. This method serves as a direct interface with hardware,
+ * allowing you to directly set the volume as apposed to via the framework.
+ * This method might produce multiple PCM outputs or hardware accelerated
+ * codecs, such as MP3 or AAC.
+ */
+ int (*set_volume)(struct audio_stream_out *stream, float left, float right);
+
+ /**
+ * Write audio buffer to driver. Returns number of bytes written, or a
+ * negative status_t. If at least one frame was written successfully prior to the error,
+ * it is suggested that the driver return that successful (short) byte count
+ * and then return an error in the subsequent call.
+ *
+ * If set_callback() has previously been called to enable non-blocking mode
+ * the write() is not allowed to block. It must write only the number of
+ * bytes that currently fit in the driver/hardware buffer and then return
+ * this byte count. If this is less than the requested write size the
+ * callback function must be called when more space is available in the
+ * driver/hardware buffer.
+ */
+ ssize_t (*write)(struct audio_stream_out *stream, const void* buffer,
+ size_t bytes);
+
+ /* return the number of audio frames written by the audio dsp to DAC since
+ * the output has exited standby
+ */
+ int (*get_render_position)(const struct audio_stream_out *stream,
+ uint32_t *dsp_frames);
+
+ /**
+ * get the local time at which the next write to the audio driver will be presented.
+ * The units are microseconds, where the epoch is decided by the local audio HAL.
+ */
+ int (*get_next_write_timestamp)(const struct audio_stream_out *stream,
+ int64_t *timestamp);
+
+ /**
+ * set the callback function for notifying completion of non-blocking
+ * write and drain.
+ * Calling this function implies that all future write() and drain()
+ * must be non-blocking and use the callback to signal completion.
+ */
+ int (*set_callback)(struct audio_stream_out *stream,
+ stream_callback_t callback, void *cookie);
+
+ /**
+ * Notifies to the audio driver to stop playback however the queued buffers are
+ * retained by the hardware. Useful for implementing pause/resume. Empty implementation
+ * if not supported however should be implemented for hardware with non-trivial
+ * latency. In the pause state audio hardware could still be using power. User may
+ * consider calling suspend after a timeout.
+ *
+ * Implementation of this function is mandatory for offloaded playback.
+ */
+ int (*pause)(struct audio_stream_out* stream);
+
+ /**
+ * Notifies to the audio driver to resume playback following a pause.
+ * Returns error if called without matching pause.
+ *
+ * Implementation of this function is mandatory for offloaded playback.
+ */
+ int (*resume)(struct audio_stream_out* stream);
+
+ /**
+ * Requests notification when data buffered by the driver/hardware has
+ * been played. If set_callback() has previously been called to enable
+ * non-blocking mode, the drain() must not block, instead it should return
+ * quickly and completion of the drain is notified through the callback.
+ * If set_callback() has not been called, the drain() must block until
+ * completion.
+ * If type==AUDIO_DRAIN_ALL, the drain completes when all previously written
+ * data has been played.
+ * If type==AUDIO_DRAIN_EARLY_NOTIFY, the drain completes shortly before all
+ * data for the current track has played to allow time for the framework
+ * to perform a gapless track switch.
+ *
+ * Drain must return immediately on stop() and flush() call
+ *
+ * Implementation of this function is mandatory for offloaded playback.
+ */
+ int (*drain)(struct audio_stream_out* stream, audio_drain_type_t type );
+
+ /**
+ * Notifies to the audio driver to flush the queued data. Stream must already
+ * be paused before calling flush().
+ *
+ * Implementation of this function is mandatory for offloaded playback.
+ */
+ int (*flush)(struct audio_stream_out* stream);
+
+ /**
+ * Return a recent count of the number of audio frames presented to an external observer.
+ * This excludes frames which have been written but are still in the pipeline.
+ * The count is not reset to zero when output enters standby.
+ * Also returns the value of CLOCK_MONOTONIC as of this presentation count.
+ * The returned count is expected to be 'recent',
+ * but does not need to be the most recent possible value.
+ * However, the associated time should correspond to whatever count is returned.
+ * Example: assume that N+M frames have been presented, where M is a 'small' number.
+ * Then it is permissible to return N instead of N+M,
+ * and the timestamp should correspond to N rather than N+M.
+ * The terms 'recent' and 'small' are not defined.
+ * They reflect the quality of the implementation.
+ *
+ * 3.0 and higher only.
+ */
+ int (*get_presentation_position)(const struct audio_stream_out *stream,
+ uint64_t *frames, struct timespec *timestamp);
+
+};
+typedef struct audio_stream_out audio_stream_out_t;
+
+struct audio_stream_in {
+ /**
+ * Common methods of the audio stream in. This *must* be the first member of audio_stream_in
+ * as users of this structure will cast a audio_stream to audio_stream_in pointer in contexts
+ * where it's known the audio_stream references an audio_stream_in.
+ */
+ struct audio_stream common;
+
+ /** set the input gain for the audio driver. This method is for
+ * for future use */
+ int (*set_gain)(struct audio_stream_in *stream, float gain);
+
+ /** Read audio buffer in from audio driver. Returns number of bytes read, or a
+ * negative status_t. If at least one frame was read prior to the error,
+ * read should return that byte count and then return an error in the subsequent call.
+ */
+ ssize_t (*read)(struct audio_stream_in *stream, void* buffer,
+ size_t bytes);
+
+ /**
+ * Return the amount of input frames lost in the audio driver since the
+ * last call of this function.
+ * Audio driver is expected to reset the value to 0 and restart counting
+ * upon returning the current value by this function call.
+ * Such loss typically occurs when the user space process is blocked
+ * longer than the capacity of audio driver buffers.
+ *
+ * Unit: the number of input audio frames
+ */
+ uint32_t (*get_input_frames_lost)(struct audio_stream_in *stream);
+};
+typedef struct audio_stream_in audio_stream_in_t;
+
+/**
+ * return the frame size (number of bytes per sample).
+ *
+ * Deprecated: use audio_stream_out_frame_size() or audio_stream_in_frame_size() instead.
+ */
+__attribute__((__deprecated__))
+static inline size_t audio_stream_frame_size(const struct audio_stream *s)
+{
+ size_t chan_samp_sz;
+ audio_format_t format = s->get_format(s);
+
+ if (audio_is_linear_pcm(format)) {
+ chan_samp_sz = audio_bytes_per_sample(format);
+ return popcount(s->get_channels(s)) * chan_samp_sz;
+ }
+
+ return sizeof(int8_t);
+}
+
+/**
+ * return the frame size (number of bytes per sample) of an output stream.
+ */
+static inline size_t audio_stream_out_frame_size(const struct audio_stream_out *s)
+{
+ size_t chan_samp_sz;
+ audio_format_t format = s->common.get_format(&s->common);
+
+ if (audio_is_linear_pcm(format)) {
+ chan_samp_sz = audio_bytes_per_sample(format);
+ return audio_channel_count_from_out_mask(s->common.get_channels(&s->common)) * chan_samp_sz;
+ }
+
+ return sizeof(int8_t);
+}
+
+/**
+ * return the frame size (number of bytes per sample) of an input stream.
+ */
+static inline size_t audio_stream_in_frame_size(const struct audio_stream_in *s)
+{
+ size_t chan_samp_sz;
+ audio_format_t format = s->common.get_format(&s->common);
+
+ if (audio_is_linear_pcm(format)) {
+ chan_samp_sz = audio_bytes_per_sample(format);
+ return audio_channel_count_from_in_mask(s->common.get_channels(&s->common)) * chan_samp_sz;
+ }
+
+ return sizeof(int8_t);
+}
+
+/**********************************************************************/
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+struct audio_module {
+ struct hw_module_t common;
+};
+
+struct audio_hw_device {
+ /**
+ * Common methods of the audio device. This *must* be the first member of audio_hw_device
+ * as users of this structure will cast a hw_device_t to audio_hw_device pointer in contexts
+ * where it's known the hw_device_t references an audio_hw_device.
+ */
+ struct hw_device_t common;
+
+ /**
+ * used by audio flinger to enumerate what devices are supported by
+ * each audio_hw_device implementation.
+ *
+ * Return value is a bitmask of 1 or more values of audio_devices_t
+ *
+ * NOTE: audio HAL implementations starting with
+ * AUDIO_DEVICE_API_VERSION_2_0 do not implement this function.
+ * All supported devices should be listed in audio_policy.conf
+ * file and the audio policy manager must choose the appropriate
+ * audio module based on information in this file.
+ */
+ uint32_t (*get_supported_devices)(const struct audio_hw_device *dev);
+
+ /**
+ * check to see if the audio hardware interface has been initialized.
+ * returns 0 on success, -ENODEV on failure.
+ */
+ int (*init_check)(const struct audio_hw_device *dev);
+
+ /** set the audio volume of a voice call. Range is between 0.0 and 1.0 */
+ int (*set_voice_volume)(struct audio_hw_device *dev, float volume);
+
+ /**
+ * set the audio volume for all audio activities other than voice call.
+ * Range between 0.0 and 1.0. If any value other than 0 is returned,
+ * the software mixer will emulate this capability.
+ */
+ int (*set_master_volume)(struct audio_hw_device *dev, float volume);
+
+ /**
+ * Get the current master volume value for the HAL, if the HAL supports
+ * master volume control. AudioFlinger will query this value from the
+ * primary audio HAL when the service starts and use the value for setting
+ * the initial master volume across all HALs. HALs which do not support
+ * this method may leave it set to NULL.
+ */
+ int (*get_master_volume)(struct audio_hw_device *dev, float *volume);
+
+ /**
+ * set_mode is called when the audio mode changes. AUDIO_MODE_NORMAL mode
+ * is for standard audio playback, AUDIO_MODE_RINGTONE when a ringtone is
+ * playing, and AUDIO_MODE_IN_CALL when a call is in progress.
+ */
+ int (*set_mode)(struct audio_hw_device *dev, audio_mode_t mode);
+
+ /* mic mute */
+ int (*set_mic_mute)(struct audio_hw_device *dev, bool state);
+ int (*get_mic_mute)(const struct audio_hw_device *dev, bool *state);
+
+ /* set/get global audio parameters */
+ int (*set_parameters)(struct audio_hw_device *dev, const char *kv_pairs);
+
+ /*
+ * Returns a pointer to a heap allocated string. The caller is responsible
+ * for freeing the memory for it using free().
+ */
+ char * (*get_parameters)(const struct audio_hw_device *dev,
+ const char *keys);
+
+ /* Returns audio input buffer size according to parameters passed or
+ * 0 if one of the parameters is not supported.
+ * See also get_buffer_size which is for a particular stream.
+ */
+ size_t (*get_input_buffer_size)(const struct audio_hw_device *dev,
+ const struct audio_config *config);
+
+ /** This method creates and opens the audio hardware output stream.
+ * The "address" parameter qualifies the "devices" audio device type if needed.
+ * The format format depends on the device type:
+ * - Bluetooth devices use the MAC address of the device in the form "00:11:22:AA:BB:CC"
+ * - USB devices use the ALSA card and device numbers in the form "card=X;device=Y"
+ * - Other devices may use a number or any other string.
+ */
+
+ int (*open_output_stream)(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ audio_output_flags_t flags,
+ struct audio_config *config,
+ struct audio_stream_out **stream_out,
+ const char *address);
+
+ void (*close_output_stream)(struct audio_hw_device *dev,
+ struct audio_stream_out* stream_out);
+
+ /** This method creates and opens the audio hardware input stream */
+ int (*open_input_stream)(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ struct audio_config *config,
+ struct audio_stream_in **stream_in,
+ audio_input_flags_t flags,
+ const char *address,
+ audio_source_t source);
+
+ void (*close_input_stream)(struct audio_hw_device *dev,
+ struct audio_stream_in *stream_in);
+
+ /** This method dumps the state of the audio hardware */
+ int (*dump)(const struct audio_hw_device *dev, int fd);
+
+ /**
+ * set the audio mute status for all audio activities. If any value other
+ * than 0 is returned, the software mixer will emulate this capability.
+ */
+ int (*set_master_mute)(struct audio_hw_device *dev, bool mute);
+
+ /**
+ * Get the current master mute status for the HAL, if the HAL supports
+ * master mute control. AudioFlinger will query this value from the primary
+ * audio HAL when the service starts and use the value for setting the
+ * initial master mute across all HALs. HALs which do not support this
+ * method may leave it set to NULL.
+ */
+ int (*get_master_mute)(struct audio_hw_device *dev, bool *mute);
+
+ /**
+ * Routing control
+ */
+
+ /* Creates an audio patch between several source and sink ports.
+ * The handle is allocated by the HAL and should be unique for this
+ * audio HAL module. */
+ int (*create_audio_patch)(struct audio_hw_device *dev,
+ unsigned int num_sources,
+ const struct audio_port_config *sources,
+ unsigned int num_sinks,
+ const struct audio_port_config *sinks,
+ audio_patch_handle_t *handle);
+
+ /* Release an audio patch */
+ int (*release_audio_patch)(struct audio_hw_device *dev,
+ audio_patch_handle_t handle);
+
+ /* Fills the list of supported attributes for a given audio port.
+ * As input, "port" contains the information (type, role, address etc...)
+ * needed by the HAL to identify the port.
+ * As output, "port" contains possible attributes (sampling rates, formats,
+ * channel masks, gain controllers...) for this port.
+ */
+ int (*get_audio_port)(struct audio_hw_device *dev,
+ struct audio_port *port);
+
+ /* Set audio port configuration */
+ int (*set_audio_port_config)(struct audio_hw_device *dev,
+ const struct audio_port_config *config);
+
+};
+typedef struct audio_hw_device audio_hw_device_t;
+
+/** convenience API for opening and closing a supported device */
+
+static inline int audio_hw_device_open(const struct hw_module_t* module,
+ struct audio_hw_device** device)
+{
+ return module->methods->open(module, AUDIO_HARDWARE_INTERFACE,
+ (struct hw_device_t**)device);
+}
+
+static inline int audio_hw_device_close(struct audio_hw_device* device)
+{
+ return device->common.close(&device->common);
+}
+
+
+__END_DECLS
+
+#endif // ANDROID_AUDIO_INTERFACE_H
diff --git a/libhardware/include/hardware/audio_alsaops.h b/libhardware/include/hardware/audio_alsaops.h
new file mode 100644
index 0000000..0d266ff
--- /dev/null
+++ b/libhardware/include/hardware/audio_alsaops.h
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* This file contains shared utility functions to handle the tinyalsa
+ * implementation for Android internal audio, generally in the hardware layer.
+ * Some routines may log a fatal error on failure, as noted.
+ */
+
+#ifndef ANDROID_AUDIO_ALSAOPS_H
+#define ANDROID_AUDIO_ALSAOPS_H
+
+#include <cutils/log.h>
+#include <system/audio.h>
+#include <tinyalsa/asoundlib.h>
+
+__BEGIN_DECLS
+
+/* Converts audio_format to pcm_format.
+ * Parameters:
+ * format the audio_format_t to convert
+ *
+ * Logs a fatal error if format is not a valid convertible audio_format_t.
+ */
+static inline enum pcm_format pcm_format_from_audio_format(audio_format_t format)
+{
+ switch (format) {
+#ifdef HAVE_BIG_ENDIAN
+ case AUDIO_FORMAT_PCM_16_BIT:
+ return PCM_FORMAT_S16_BE;
+ case AUDIO_FORMAT_PCM_24_BIT_PACKED:
+ return PCM_FORMAT_S24_3BE;
+ case AUDIO_FORMAT_PCM_32_BIT:
+ return PCM_FORMAT_S32_BE;
+ case AUDIO_FORMAT_PCM_8_24_BIT:
+ return PCM_FORMAT_S24_BE;
+#else
+ case AUDIO_FORMAT_PCM_16_BIT:
+ return PCM_FORMAT_S16_LE;
+ case AUDIO_FORMAT_PCM_24_BIT_PACKED:
+ return PCM_FORMAT_S24_3LE;
+ case AUDIO_FORMAT_PCM_32_BIT:
+ return PCM_FORMAT_S32_LE;
+ case AUDIO_FORMAT_PCM_8_24_BIT:
+ return PCM_FORMAT_S24_LE;
+#endif
+ case AUDIO_FORMAT_PCM_FLOAT: /* there is no equivalent for float */
+ default:
+ LOG_ALWAYS_FATAL("pcm_format_from_audio_format: invalid audio format %#x", format);
+ return 0;
+ }
+}
+
+/* Converts pcm_format to audio_format.
+ * Parameters:
+ * format the pcm_format to convert
+ *
+ * Logs a fatal error if format is not a valid convertible pcm_format.
+ */
+static inline audio_format_t audio_format_from_pcm_format(enum pcm_format format)
+{
+ switch (format) {
+#ifdef HAVE_BIG_ENDIAN
+ case PCM_FORMAT_S16_BE:
+ return AUDIO_FORMAT_PCM_16_BIT;
+ case PCM_FORMAT_S24_3BE:
+ return AUDIO_FORMAT_PCM_24_BIT_PACKED;
+ case PCM_FORMAT_S24_BE:
+ return AUDIO_FORMAT_PCM_8_24_BIT;
+ case PCM_FORMAT_S32_BE:
+ return AUDIO_FORMAT_PCM_32_BIT;
+#else
+ case PCM_FORMAT_S16_LE:
+ return AUDIO_FORMAT_PCM_16_BIT;
+ case PCM_FORMAT_S24_3LE:
+ return AUDIO_FORMAT_PCM_24_BIT_PACKED;
+ case PCM_FORMAT_S24_LE:
+ return AUDIO_FORMAT_PCM_8_24_BIT;
+ case PCM_FORMAT_S32_LE:
+ return AUDIO_FORMAT_PCM_32_BIT;
+#endif
+ default:
+ LOG_ALWAYS_FATAL("audio_format_from_pcm_format: invalid pcm format %#x", format);
+ return 0;
+ }
+}
+
+__END_DECLS
+
+#endif /* ANDROID_AUDIO_ALSAOPS_H */
diff --git a/libhardware/include/hardware/audio_effect.h b/libhardware/include/hardware/audio_effect.h
new file mode 100644
index 0000000..41cd2e6
--- /dev/null
+++ b/libhardware/include/hardware/audio_effect.h
@@ -0,0 +1,1014 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_AUDIO_EFFECT_H
+#define ANDROID_AUDIO_EFFECT_H
+
+#include <errno.h>
+#include <stdint.h>
+#include <strings.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <cutils/bitops.h>
+
+#include <system/audio.h>
+
+
+__BEGIN_DECLS
+
+
+/////////////////////////////////////////////////
+// Common Definitions
+/////////////////////////////////////////////////
+
+//
+//--- Effect descriptor structure effect_descriptor_t
+//
+
+// Unique effect ID (can be generated from the following site:
+// http://www.itu.int/ITU-T/asn1/uuid.html)
+// This format is used for both "type" and "uuid" fields of the effect descriptor structure.
+// - When used for effect type and the engine is implementing and effect corresponding to a standard
+// OpenSL ES interface, this ID must be the one defined in OpenSLES_IID.h for that interface.
+// - When used as uuid, it should be a unique UUID for this particular implementation.
+typedef struct effect_uuid_s {
+ uint32_t timeLow;
+ uint16_t timeMid;
+ uint16_t timeHiAndVersion;
+ uint16_t clockSeq;
+ uint8_t node[6];
+} effect_uuid_t;
+
+// Maximum length of character strings in structures defines by this API.
+#define EFFECT_STRING_LEN_MAX 64
+
+// NULL UUID definition (matches SL_IID_NULL_)
+#define EFFECT_UUID_INITIALIZER { 0xec7178ec, 0xe5e1, 0x4432, 0xa3f4, \
+ { 0x46, 0x57, 0xe6, 0x79, 0x52, 0x10 } }
+static const effect_uuid_t EFFECT_UUID_NULL_ = EFFECT_UUID_INITIALIZER;
+static const effect_uuid_t * const EFFECT_UUID_NULL = &EFFECT_UUID_NULL_;
+static const char * const EFFECT_UUID_NULL_STR = "ec7178ec-e5e1-4432-a3f4-4657e6795210";
+
+
+// The effect descriptor contains necessary information to facilitate the enumeration of the effect
+// engines present in a library.
+typedef struct effect_descriptor_s {
+ effect_uuid_t type; // UUID of to the OpenSL ES interface implemented by this effect
+ effect_uuid_t uuid; // UUID for this particular implementation
+ uint32_t apiVersion; // Version of the effect control API implemented
+ uint32_t flags; // effect engine capabilities/requirements flags (see below)
+ uint16_t cpuLoad; // CPU load indication (see below)
+ uint16_t memoryUsage; // Data Memory usage (see below)
+ char name[EFFECT_STRING_LEN_MAX]; // human readable effect name
+ char implementor[EFFECT_STRING_LEN_MAX]; // human readable effect implementor name
+} effect_descriptor_t;
+
+// CPU load and memory usage indication: each effect implementation must provide an indication of
+// its CPU and memory usage for the audio effect framework to limit the number of effects
+// instantiated at a given time on a given platform.
+// The CPU load is expressed in 0.1 MIPS units as estimated on an ARM9E core (ARMv5TE) with 0 WS.
+// The memory usage is expressed in KB and includes only dynamically allocated memory
+
+// Definitions for flags field of effect descriptor.
+// +---------------------------+-----------+-----------------------------------
+// | description | bits | values
+// +---------------------------+-----------+-----------------------------------
+// | connection mode | 0..2 | 0 insert: after track process
+// | | | 1 auxiliary: connect to track auxiliary
+// | | | output and use send level
+// | | | 2 replace: replaces track process function;
+// | | | must implement SRC, volume and mono to stereo.
+// | | | 3 pre processing: applied below audio HAL on input
+// | | | 4 post processing: applied below audio HAL on output
+// | | | 5 - 7 reserved
+// +---------------------------+-----------+-----------------------------------
+// | insertion preference | 3..5 | 0 none
+// | | | 1 first of the chain
+// | | | 2 last of the chain
+// | | | 3 exclusive (only effect in the insert chain)
+// | | | 4..7 reserved
+// +---------------------------+-----------+-----------------------------------
+// | Volume management | 6..8 | 0 none
+// | | | 1 implements volume control
+// | | | 2 requires volume indication
+// | | | 4 reserved
+// +---------------------------+-----------+-----------------------------------
+// | Device indication | 9..11 | 0 none
+// | | | 1 requires device updates
+// | | | 2, 4 reserved
+// +---------------------------+-----------+-----------------------------------
+// | Sample input mode | 12..13 | 1 direct: process() function or EFFECT_CMD_SET_CONFIG
+// | | | command must specify a buffer descriptor
+// | | | 2 provider: process() function uses the
+// | | | bufferProvider indicated by the
+// | | | EFFECT_CMD_SET_CONFIG command to request input.
+// | | | buffers.
+// | | | 3 both: both input modes are supported
+// +---------------------------+-----------+-----------------------------------
+// | Sample output mode | 14..15 | 1 direct: process() function or EFFECT_CMD_SET_CONFIG
+// | | | command must specify a buffer descriptor
+// | | | 2 provider: process() function uses the
+// | | | bufferProvider indicated by the
+// | | | EFFECT_CMD_SET_CONFIG command to request output
+// | | | buffers.
+// | | | 3 both: both output modes are supported
+// +---------------------------+-----------+-----------------------------------
+// | Hardware acceleration | 16..17 | 0 No hardware acceleration
+// | | | 1 non tunneled hw acceleration: the process() function
+// | | | reads the samples, send them to HW accelerated
+// | | | effect processor, reads back the processed samples
+// | | | and returns them to the output buffer.
+// | | | 2 tunneled hw acceleration: the process() function is
+// | | | transparent. The effect interface is only used to
+// | | | control the effect engine. This mode is relevant for
+// | | | global effects actually applied by the audio
+// | | | hardware on the output stream.
+// +---------------------------+-----------+-----------------------------------
+// | Audio Mode indication | 18..19 | 0 none
+// | | | 1 requires audio mode updates
+// | | | 2..3 reserved
+// +---------------------------+-----------+-----------------------------------
+// | Audio source indication | 20..21 | 0 none
+// | | | 1 requires audio source updates
+// | | | 2..3 reserved
+// +---------------------------+-----------+-----------------------------------
+// | Effect offload supported | 22 | 0 The effect cannot be offloaded to an audio DSP
+// | | | 1 The effect can be offloaded to an audio DSP
+// +---------------------------+-----------+-----------------------------------
+
+// Insert mode
+#define EFFECT_FLAG_TYPE_SHIFT 0
+#define EFFECT_FLAG_TYPE_SIZE 3
+#define EFFECT_FLAG_TYPE_MASK (((1 << EFFECT_FLAG_TYPE_SIZE) -1) \
+ << EFFECT_FLAG_TYPE_SHIFT)
+#define EFFECT_FLAG_TYPE_INSERT (0 << EFFECT_FLAG_TYPE_SHIFT)
+#define EFFECT_FLAG_TYPE_AUXILIARY (1 << EFFECT_FLAG_TYPE_SHIFT)
+#define EFFECT_FLAG_TYPE_REPLACE (2 << EFFECT_FLAG_TYPE_SHIFT)
+#define EFFECT_FLAG_TYPE_PRE_PROC (3 << EFFECT_FLAG_TYPE_SHIFT)
+#define EFFECT_FLAG_TYPE_POST_PROC (4 << EFFECT_FLAG_TYPE_SHIFT)
+
+// Insert preference
+#define EFFECT_FLAG_INSERT_SHIFT (EFFECT_FLAG_TYPE_SHIFT + EFFECT_FLAG_TYPE_SIZE)
+#define EFFECT_FLAG_INSERT_SIZE 3
+#define EFFECT_FLAG_INSERT_MASK (((1 << EFFECT_FLAG_INSERT_SIZE) -1) \
+ << EFFECT_FLAG_INSERT_SHIFT)
+#define EFFECT_FLAG_INSERT_ANY (0 << EFFECT_FLAG_INSERT_SHIFT)
+#define EFFECT_FLAG_INSERT_FIRST (1 << EFFECT_FLAG_INSERT_SHIFT)
+#define EFFECT_FLAG_INSERT_LAST (2 << EFFECT_FLAG_INSERT_SHIFT)
+#define EFFECT_FLAG_INSERT_EXCLUSIVE (3 << EFFECT_FLAG_INSERT_SHIFT)
+
+
+// Volume control
+#define EFFECT_FLAG_VOLUME_SHIFT (EFFECT_FLAG_INSERT_SHIFT + EFFECT_FLAG_INSERT_SIZE)
+#define EFFECT_FLAG_VOLUME_SIZE 3
+#define EFFECT_FLAG_VOLUME_MASK (((1 << EFFECT_FLAG_VOLUME_SIZE) -1) \
+ << EFFECT_FLAG_VOLUME_SHIFT)
+#define EFFECT_FLAG_VOLUME_CTRL (1 << EFFECT_FLAG_VOLUME_SHIFT)
+#define EFFECT_FLAG_VOLUME_IND (2 << EFFECT_FLAG_VOLUME_SHIFT)
+#define EFFECT_FLAG_VOLUME_NONE (0 << EFFECT_FLAG_VOLUME_SHIFT)
+
+// Device indication
+#define EFFECT_FLAG_DEVICE_SHIFT (EFFECT_FLAG_VOLUME_SHIFT + EFFECT_FLAG_VOLUME_SIZE)
+#define EFFECT_FLAG_DEVICE_SIZE 3
+#define EFFECT_FLAG_DEVICE_MASK (((1 << EFFECT_FLAG_DEVICE_SIZE) -1) \
+ << EFFECT_FLAG_DEVICE_SHIFT)
+#define EFFECT_FLAG_DEVICE_IND (1 << EFFECT_FLAG_DEVICE_SHIFT)
+#define EFFECT_FLAG_DEVICE_NONE (0 << EFFECT_FLAG_DEVICE_SHIFT)
+
+// Sample input modes
+#define EFFECT_FLAG_INPUT_SHIFT (EFFECT_FLAG_DEVICE_SHIFT + EFFECT_FLAG_DEVICE_SIZE)
+#define EFFECT_FLAG_INPUT_SIZE 2
+#define EFFECT_FLAG_INPUT_MASK (((1 << EFFECT_FLAG_INPUT_SIZE) -1) \
+ << EFFECT_FLAG_INPUT_SHIFT)
+#define EFFECT_FLAG_INPUT_DIRECT (1 << EFFECT_FLAG_INPUT_SHIFT)
+#define EFFECT_FLAG_INPUT_PROVIDER (2 << EFFECT_FLAG_INPUT_SHIFT)
+#define EFFECT_FLAG_INPUT_BOTH (3 << EFFECT_FLAG_INPUT_SHIFT)
+
+// Sample output modes
+#define EFFECT_FLAG_OUTPUT_SHIFT (EFFECT_FLAG_INPUT_SHIFT + EFFECT_FLAG_INPUT_SIZE)
+#define EFFECT_FLAG_OUTPUT_SIZE 2
+#define EFFECT_FLAG_OUTPUT_MASK (((1 << EFFECT_FLAG_OUTPUT_SIZE) -1) \
+ << EFFECT_FLAG_OUTPUT_SHIFT)
+#define EFFECT_FLAG_OUTPUT_DIRECT (1 << EFFECT_FLAG_OUTPUT_SHIFT)
+#define EFFECT_FLAG_OUTPUT_PROVIDER (2 << EFFECT_FLAG_OUTPUT_SHIFT)
+#define EFFECT_FLAG_OUTPUT_BOTH (3 << EFFECT_FLAG_OUTPUT_SHIFT)
+
+// Hardware acceleration mode
+#define EFFECT_FLAG_HW_ACC_SHIFT (EFFECT_FLAG_OUTPUT_SHIFT + EFFECT_FLAG_OUTPUT_SIZE)
+#define EFFECT_FLAG_HW_ACC_SIZE 2
+#define EFFECT_FLAG_HW_ACC_MASK (((1 << EFFECT_FLAG_HW_ACC_SIZE) -1) \
+ << EFFECT_FLAG_HW_ACC_SHIFT)
+#define EFFECT_FLAG_HW_ACC_SIMPLE (1 << EFFECT_FLAG_HW_ACC_SHIFT)
+#define EFFECT_FLAG_HW_ACC_TUNNEL (2 << EFFECT_FLAG_HW_ACC_SHIFT)
+
+// Audio mode indication
+#define EFFECT_FLAG_AUDIO_MODE_SHIFT (EFFECT_FLAG_HW_ACC_SHIFT + EFFECT_FLAG_HW_ACC_SIZE)
+#define EFFECT_FLAG_AUDIO_MODE_SIZE 2
+#define EFFECT_FLAG_AUDIO_MODE_MASK (((1 << EFFECT_FLAG_AUDIO_MODE_SIZE) -1) \
+ << EFFECT_FLAG_AUDIO_MODE_SHIFT)
+#define EFFECT_FLAG_AUDIO_MODE_IND (1 << EFFECT_FLAG_AUDIO_MODE_SHIFT)
+#define EFFECT_FLAG_AUDIO_MODE_NONE (0 << EFFECT_FLAG_AUDIO_MODE_SHIFT)
+
+// Audio source indication
+#define EFFECT_FLAG_AUDIO_SOURCE_SHIFT (EFFECT_FLAG_AUDIO_MODE_SHIFT + EFFECT_FLAG_AUDIO_MODE_SIZE)
+#define EFFECT_FLAG_AUDIO_SOURCE_SIZE 2
+#define EFFECT_FLAG_AUDIO_SOURCE_MASK (((1 << EFFECT_FLAG_AUDIO_SOURCE_SIZE) -1) \
+ << EFFECT_FLAG_AUDIO_SOURCE_SHIFT)
+#define EFFECT_FLAG_AUDIO_SOURCE_IND (1 << EFFECT_FLAG_AUDIO_SOURCE_SHIFT)
+#define EFFECT_FLAG_AUDIO_SOURCE_NONE (0 << EFFECT_FLAG_AUDIO_SOURCE_SHIFT)
+
+// Effect offload indication
+#define EFFECT_FLAG_OFFLOAD_SHIFT (EFFECT_FLAG_AUDIO_SOURCE_SHIFT + \
+ EFFECT_FLAG_AUDIO_SOURCE_SIZE)
+#define EFFECT_FLAG_OFFLOAD_SIZE 1
+#define EFFECT_FLAG_OFFLOAD_MASK (((1 << EFFECT_FLAG_OFFLOAD_SIZE) -1) \
+ << EFFECT_FLAG_OFFLOAD_SHIFT)
+#define EFFECT_FLAG_OFFLOAD_SUPPORTED (1 << EFFECT_FLAG_OFFLOAD_SHIFT)
+
+#define EFFECT_MAKE_API_VERSION(M, m) (((M)<<16) | ((m) & 0xFFFF))
+#define EFFECT_API_VERSION_MAJOR(v) ((v)>>16)
+#define EFFECT_API_VERSION_MINOR(v) ((m) & 0xFFFF)
+
+
+
+/////////////////////////////////////////////////
+// Effect control interface
+/////////////////////////////////////////////////
+
+// Effect control interface version 2.0
+#define EFFECT_CONTROL_API_VERSION EFFECT_MAKE_API_VERSION(2,0)
+
+// Effect control interface structure: effect_interface_s
+// The effect control interface is exposed by each effect engine implementation. It consists of
+// a set of functions controlling the configuration, activation and process of the engine.
+// The functions are grouped in a structure of type effect_interface_s.
+//
+// Effect control interface handle: effect_handle_t
+// The effect_handle_t serves two purposes regarding the implementation of the effect engine:
+// - 1 it is the address of a pointer to an effect_interface_s structure where the functions
+// of the effect control API for a particular effect are located.
+// - 2 it is the address of the context of a particular effect instance.
+// A typical implementation in the effect library would define a structure as follows:
+// struct effect_module_s {
+// const struct effect_interface_s *itfe;
+// effect_config_t config;
+// effect_context_t context;
+// }
+// The implementation of EffectCreate() function would then allocate a structure of this
+// type and return its address as effect_handle_t
+typedef struct effect_interface_s **effect_handle_t;
+
+
+// Forward definition of type audio_buffer_t
+typedef struct audio_buffer_s audio_buffer_t;
+
+
+
+
+
+
+// Effect control interface definition
+struct effect_interface_s {
+ ////////////////////////////////////////////////////////////////////////////////
+ //
+ // Function: process
+ //
+ // Description: Effect process function. Takes input samples as specified
+ // (count and location) in input buffer descriptor and output processed
+ // samples as specified in output buffer descriptor. If the buffer descriptor
+ // is not specified the function must use either the buffer or the
+ // buffer provider function installed by the EFFECT_CMD_SET_CONFIG command.
+ // The effect framework will call the process() function after the EFFECT_CMD_ENABLE
+ // command is received and until the EFFECT_CMD_DISABLE is received. When the engine
+ // receives the EFFECT_CMD_DISABLE command it should turn off the effect gracefully
+ // and when done indicate that it is OK to stop calling the process() function by
+ // returning the -ENODATA status.
+ //
+ // NOTE: the process() function implementation should be "real-time safe" that is
+ // it should not perform blocking calls: malloc/free, sleep, read/write/open/close,
+ // pthread_cond_wait/pthread_mutex_lock...
+ //
+ // Input:
+ // self: handle to the effect interface this function
+ // is called on.
+ // inBuffer: buffer descriptor indicating where to read samples to process.
+ // If NULL, use the configuration passed by EFFECT_CMD_SET_CONFIG command.
+ //
+ // outBuffer: buffer descriptor indicating where to write processed samples.
+ // If NULL, use the configuration passed by EFFECT_CMD_SET_CONFIG command.
+ //
+ // Output:
+ // returned value: 0 successful operation
+ // -ENODATA the engine has finished the disable phase and the framework
+ // can stop calling process()
+ // -EINVAL invalid interface handle or
+ // invalid input/output buffer description
+ ////////////////////////////////////////////////////////////////////////////////
+ int32_t (*process)(effect_handle_t self,
+ audio_buffer_t *inBuffer,
+ audio_buffer_t *outBuffer);
+ ////////////////////////////////////////////////////////////////////////////////
+ //
+ // Function: command
+ //
+ // Description: Send a command and receive a response to/from effect engine.
+ //
+ // Input:
+ // self: handle to the effect interface this function
+ // is called on.
+ // cmdCode: command code: the command can be a standardized command defined in
+ // effect_command_e (see below) or a proprietary command.
+ // cmdSize: size of command in bytes
+ // pCmdData: pointer to command data
+ // pReplyData: pointer to reply data
+ //
+ // Input/Output:
+ // replySize: maximum size of reply data as input
+ // actual size of reply data as output
+ //
+ // Output:
+ // returned value: 0 successful operation
+ // -EINVAL invalid interface handle or
+ // invalid command/reply size or format according to
+ // command code
+ // The return code should be restricted to indicate problems related to this API
+ // specification. Status related to the execution of a particular command should be
+ // indicated as part of the reply field.
+ //
+ // *pReplyData updated with command response
+ //
+ ////////////////////////////////////////////////////////////////////////////////
+ int32_t (*command)(effect_handle_t self,
+ uint32_t cmdCode,
+ uint32_t cmdSize,
+ void *pCmdData,
+ uint32_t *replySize,
+ void *pReplyData);
+ ////////////////////////////////////////////////////////////////////////////////
+ //
+ // Function: get_descriptor
+ //
+ // Description: Returns the effect descriptor
+ //
+ // Input:
+ // self: handle to the effect interface this function
+ // is called on.
+ //
+ // Input/Output:
+ // pDescriptor: address where to return the effect descriptor.
+ //
+ // Output:
+ // returned value: 0 successful operation.
+ // -EINVAL invalid interface handle or invalid pDescriptor
+ // *pDescriptor: updated with the effect descriptor.
+ //
+ ////////////////////////////////////////////////////////////////////////////////
+ int32_t (*get_descriptor)(effect_handle_t self,
+ effect_descriptor_t *pDescriptor);
+ ////////////////////////////////////////////////////////////////////////////////
+ //
+ // Function: process_reverse
+ //
+ // Description: Process reverse stream function. This function is used to pass
+ // a reference stream to the effect engine. If the engine does not need a reference
+ // stream, this function pointer can be set to NULL.
+ // This function would typically implemented by an Echo Canceler.
+ //
+ // Input:
+ // self: handle to the effect interface this function
+ // is called on.
+ // inBuffer: buffer descriptor indicating where to read samples to process.
+ // If NULL, use the configuration passed by EFFECT_CMD_SET_CONFIG_REVERSE command.
+ //
+ // outBuffer: buffer descriptor indicating where to write processed samples.
+ // If NULL, use the configuration passed by EFFECT_CMD_SET_CONFIG_REVERSE command.
+ // If the buffer and buffer provider in the configuration received by
+ // EFFECT_CMD_SET_CONFIG_REVERSE are also NULL, do not return modified reverse
+ // stream data
+ //
+ // Output:
+ // returned value: 0 successful operation
+ // -ENODATA the engine has finished the disable phase and the framework
+ // can stop calling process_reverse()
+ // -EINVAL invalid interface handle or
+ // invalid input/output buffer description
+ ////////////////////////////////////////////////////////////////////////////////
+ int32_t (*process_reverse)(effect_handle_t self,
+ audio_buffer_t *inBuffer,
+ audio_buffer_t *outBuffer);
+};
+
+
+//
+//--- Standardized command codes for command() function
+//
+enum effect_command_e {
+ EFFECT_CMD_INIT, // initialize effect engine
+ EFFECT_CMD_SET_CONFIG, // configure effect engine (see effect_config_t)
+ EFFECT_CMD_RESET, // reset effect engine
+ EFFECT_CMD_ENABLE, // enable effect process
+ EFFECT_CMD_DISABLE, // disable effect process
+ EFFECT_CMD_SET_PARAM, // set parameter immediately (see effect_param_t)
+ EFFECT_CMD_SET_PARAM_DEFERRED, // set parameter deferred
+ EFFECT_CMD_SET_PARAM_COMMIT, // commit previous set parameter deferred
+ EFFECT_CMD_GET_PARAM, // get parameter
+ EFFECT_CMD_SET_DEVICE, // set audio device (see audio.h, audio_devices_t)
+ EFFECT_CMD_SET_VOLUME, // set volume
+ EFFECT_CMD_SET_AUDIO_MODE, // set the audio mode (normal, ring, ...)
+ EFFECT_CMD_SET_CONFIG_REVERSE, // configure effect engine reverse stream(see effect_config_t)
+ EFFECT_CMD_SET_INPUT_DEVICE, // set capture device (see audio.h, audio_devices_t)
+ EFFECT_CMD_GET_CONFIG, // read effect engine configuration
+ EFFECT_CMD_GET_CONFIG_REVERSE, // read configure effect engine reverse stream configuration
+ EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS,// get all supported configurations for a feature.
+ EFFECT_CMD_GET_FEATURE_CONFIG, // get current feature configuration
+ EFFECT_CMD_SET_FEATURE_CONFIG, // set current feature configuration
+ EFFECT_CMD_SET_AUDIO_SOURCE, // set the audio source (see audio.h, audio_source_t)
+ EFFECT_CMD_OFFLOAD, // set if effect thread is an offload one,
+ // send the ioHandle of the effect thread
+ EFFECT_CMD_FIRST_PROPRIETARY = 0x10000 // first proprietary command code
+};
+
+//==================================================================================================
+// command: EFFECT_CMD_INIT
+//--------------------------------------------------------------------------------------------------
+// description:
+// Initialize effect engine: All configurations return to default
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 0
+// data: N/A
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(int)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_SET_CONFIG
+//--------------------------------------------------------------------------------------------------
+// description:
+// Apply new audio parameters configurations for input and output buffers
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(effect_config_t)
+// data: effect_config_t
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(int)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_RESET
+//--------------------------------------------------------------------------------------------------
+// description:
+// Reset the effect engine. Keep configuration but resets state and buffer content
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 0
+// data: N/A
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: 0
+// data: N/A
+//==================================================================================================
+// command: EFFECT_CMD_ENABLE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Enable the process. Called by the framework before the first call to process()
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 0
+// data: N/A
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(int)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_DISABLE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Disable the process. Called by the framework after the last call to process()
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 0
+// data: N/A
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(int)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_SET_PARAM
+//--------------------------------------------------------------------------------------------------
+// description:
+// Set a parameter and apply it immediately
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(effect_param_t) + size of param and value
+// data: effect_param_t + param + value. See effect_param_t definition below for value offset
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(int)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_SET_PARAM_DEFERRED
+//--------------------------------------------------------------------------------------------------
+// description:
+// Set a parameter but apply it only when receiving EFFECT_CMD_SET_PARAM_COMMIT command
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(effect_param_t) + size of param and value
+// data: effect_param_t + param + value. See effect_param_t definition below for value offset
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: 0
+// data: N/A
+//==================================================================================================
+// command: EFFECT_CMD_SET_PARAM_COMMIT
+//--------------------------------------------------------------------------------------------------
+// description:
+// Apply all previously received EFFECT_CMD_SET_PARAM_DEFERRED commands
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 0
+// data: N/A
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(int)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_GET_PARAM
+//--------------------------------------------------------------------------------------------------
+// description:
+// Get a parameter value
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(effect_param_t) + size of param
+// data: effect_param_t + param
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(effect_param_t) + size of param and value
+// data: effect_param_t + param + value. See effect_param_t definition below for value offset
+//==================================================================================================
+// command: EFFECT_CMD_SET_DEVICE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Set the rendering device the audio output path is connected to. See audio.h, audio_devices_t
+// for device values.
+// The effect implementation must set EFFECT_FLAG_DEVICE_IND flag in its descriptor to receive this
+// command when the device changes
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(uint32_t)
+// data: uint32_t
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: 0
+// data: N/A
+//==================================================================================================
+// command: EFFECT_CMD_SET_VOLUME
+//--------------------------------------------------------------------------------------------------
+// description:
+// Set and get volume. Used by audio framework to delegate volume control to effect engine.
+// The effect implementation must set EFFECT_FLAG_VOLUME_IND or EFFECT_FLAG_VOLUME_CTRL flag in
+// its descriptor to receive this command before every call to process() function
+// If EFFECT_FLAG_VOLUME_CTRL flag is set in the effect descriptor, the effect engine must return
+// the volume that should be applied before the effect is processed. The overall volume (the volume
+// actually applied by the effect engine multiplied by the returned value) should match the value
+// indicated in the command.
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: n * sizeof(uint32_t)
+// data: volume for each channel defined in effect_config_t for output buffer expressed in
+// 8.24 fixed point format
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: n * sizeof(uint32_t) / 0
+// data: - if EFFECT_FLAG_VOLUME_CTRL is set in effect descriptor:
+// volume for each channel defined in effect_config_t for output buffer expressed in
+// 8.24 fixed point format
+// - if EFFECT_FLAG_VOLUME_CTRL is not set in effect descriptor:
+// N/A
+// It is legal to receive a null pointer as pReplyData in which case the effect framework has
+// delegated volume control to another effect
+//==================================================================================================
+// command: EFFECT_CMD_SET_AUDIO_MODE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Set the audio mode. The effect implementation must set EFFECT_FLAG_AUDIO_MODE_IND flag in its
+// descriptor to receive this command when the audio mode changes.
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(uint32_t)
+// data: audio_mode_t
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: 0
+// data: N/A
+//==================================================================================================
+// command: EFFECT_CMD_SET_CONFIG_REVERSE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Apply new audio parameters configurations for input and output buffers of reverse stream.
+// An example of reverse stream is the echo reference supplied to an Acoustic Echo Canceler.
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(effect_config_t)
+// data: effect_config_t
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(int)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_SET_INPUT_DEVICE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Set the capture device the audio input path is connected to. See audio.h, audio_devices_t
+// for device values.
+// The effect implementation must set EFFECT_FLAG_DEVICE_IND flag in its descriptor to receive this
+// command when the device changes
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(uint32_t)
+// data: uint32_t
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: 0
+// data: N/A
+//==================================================================================================
+// command: EFFECT_CMD_GET_CONFIG
+//--------------------------------------------------------------------------------------------------
+// description:
+// Read audio parameters configurations for input and output buffers
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 0
+// data: N/A
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(effect_config_t)
+// data: effect_config_t
+//==================================================================================================
+// command: EFFECT_CMD_GET_CONFIG_REVERSE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Read audio parameters configurations for input and output buffers of reverse stream
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 0
+// data: N/A
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(effect_config_t)
+// data: effect_config_t
+//==================================================================================================
+// command: EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS
+//--------------------------------------------------------------------------------------------------
+// description:
+// Queries for supported configurations for a particular feature (e.g. get the supported
+// combinations of main and auxiliary channels for a noise suppressor).
+// The command parameter is the feature identifier (See effect_feature_e for a list of defined
+// features) followed by the maximum number of configuration descriptor to return.
+// The reply is composed of:
+// - status (uint32_t):
+// - 0 if feature is supported
+// - -ENOSYS if the feature is not supported,
+// - -ENOMEM if the feature is supported but the total number of supported configurations
+// exceeds the maximum number indicated by the caller.
+// - total number of supported configurations (uint32_t)
+// - an array of configuration descriptors.
+// The actual number of descriptors returned must not exceed the maximum number indicated by
+// the caller.
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: 2 x sizeof(uint32_t)
+// data: effect_feature_e + maximum number of configurations to return
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: 2 x sizeof(uint32_t) + n x sizeof (<config descriptor>)
+// data: status + total number of configurations supported + array of n config descriptors
+//==================================================================================================
+// command: EFFECT_CMD_GET_FEATURE_CONFIG
+//--------------------------------------------------------------------------------------------------
+// description:
+// Retrieves current configuration for a given feature.
+// The reply status is:
+// - 0 if feature is supported
+// - -ENOSYS if the feature is not supported,
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(uint32_t)
+// data: effect_feature_e
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(uint32_t) + sizeof (<config descriptor>)
+// data: status + config descriptor
+//==================================================================================================
+// command: EFFECT_CMD_SET_FEATURE_CONFIG
+//--------------------------------------------------------------------------------------------------
+// description:
+// Sets current configuration for a given feature.
+// The reply status is:
+// - 0 if feature is supported
+// - -ENOSYS if the feature is not supported,
+// - -EINVAL if the configuration is invalid
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(uint32_t) + sizeof (<config descriptor>)
+// data: effect_feature_e + config descriptor
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(uint32_t)
+// data: status
+//==================================================================================================
+// command: EFFECT_CMD_SET_AUDIO_SOURCE
+//--------------------------------------------------------------------------------------------------
+// description:
+// Set the audio source the capture path is configured for (Camcorder, voice recognition...).
+// See audio.h, audio_source_t for values.
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(uint32_t)
+// data: uint32_t
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: 0
+// data: N/A
+//==================================================================================================
+// command: EFFECT_CMD_OFFLOAD
+//--------------------------------------------------------------------------------------------------
+// description:
+// 1.indicate if the playback thread the effect is attached to is offloaded or not
+// 2.update the io handle of the playback thread the effect is attached to
+//--------------------------------------------------------------------------------------------------
+// command format:
+// size: sizeof(effect_offload_param_t)
+// data: effect_offload_param_t
+//--------------------------------------------------------------------------------------------------
+// reply format:
+// size: sizeof(uint32_t)
+// data: uint32_t
+//--------------------------------------------------------------------------------------------------
+// command: EFFECT_CMD_FIRST_PROPRIETARY
+//--------------------------------------------------------------------------------------------------
+// description:
+// All proprietary effect commands must use command codes above this value. The size and format of
+// command and response fields is free in this case
+//==================================================================================================
+
+
+// Audio buffer descriptor used by process(), bufferProvider() functions and buffer_config_t
+// structure. Multi-channel audio is always interleaved. The channel order is from LSB to MSB with
+// regard to the channel mask definition in audio.h, audio_channel_mask_t e.g :
+// Stereo: left, right
+// 5 point 1: front left, front right, front center, low frequency, back left, back right
+// The buffer size is expressed in frame count, a frame being composed of samples for all
+// channels at a given time. Frame size for unspecified format (AUDIO_FORMAT_OTHER) is 8 bit by
+// definition
+struct audio_buffer_s {
+ size_t frameCount; // number of frames in buffer
+ union {
+ void* raw; // raw pointer to start of buffer
+ int32_t* s32; // pointer to signed 32 bit data at start of buffer
+ int16_t* s16; // pointer to signed 16 bit data at start of buffer
+ uint8_t* u8; // pointer to unsigned 8 bit data at start of buffer
+ };
+};
+
+// The buffer_provider_s structure contains functions that can be used
+// by the effect engine process() function to query and release input
+// or output audio buffer.
+// The getBuffer() function is called to retrieve a buffer where data
+// should read from or written to by process() function.
+// The releaseBuffer() function MUST be called when the buffer retrieved
+// with getBuffer() is not needed anymore.
+// The process function should use the buffer provider mechanism to retrieve
+// input or output buffer if the inBuffer or outBuffer passed as argument is NULL
+// and the buffer configuration (buffer_config_t) given by the EFFECT_CMD_SET_CONFIG
+// command did not specify an audio buffer.
+
+typedef int32_t (* buffer_function_t)(void *cookie, audio_buffer_t *buffer);
+
+typedef struct buffer_provider_s {
+ buffer_function_t getBuffer; // retrieve next buffer
+ buffer_function_t releaseBuffer; // release used buffer
+ void *cookie; // for use by client of buffer provider functions
+} buffer_provider_t;
+
+
+// The buffer_config_s structure specifies the input or output audio format
+// to be used by the effect engine. It is part of the effect_config_t
+// structure that defines both input and output buffer configurations and is
+// passed by the EFFECT_CMD_SET_CONFIG or EFFECT_CMD_SET_CONFIG_REVERSE command.
+typedef struct buffer_config_s {
+ audio_buffer_t buffer; // buffer for use by process() function if not passed explicitly
+ uint32_t samplingRate; // sampling rate
+ uint32_t channels; // channel mask (see audio_channel_mask_t in audio.h)
+ buffer_provider_t bufferProvider; // buffer provider
+ uint8_t format; // Audio format (see audio_format_t in audio.h)
+ uint8_t accessMode; // read/write or accumulate in buffer (effect_buffer_access_e)
+ uint16_t mask; // indicates which of the above fields is valid
+} buffer_config_t;
+
+// Values for "accessMode" field of buffer_config_t:
+// overwrite, read only, accumulate (read/modify/write)
+enum effect_buffer_access_e {
+ EFFECT_BUFFER_ACCESS_WRITE,
+ EFFECT_BUFFER_ACCESS_READ,
+ EFFECT_BUFFER_ACCESS_ACCUMULATE
+
+};
+
+// feature identifiers for EFFECT_CMD_GET_FEATURE_SUPPORTED_CONFIGS command
+enum effect_feature_e {
+ EFFECT_FEATURE_AUX_CHANNELS, // supports auxiliary channels (e.g. dual mic noise suppressor)
+ EFFECT_FEATURE_CNT
+};
+
+// EFFECT_FEATURE_AUX_CHANNELS feature configuration descriptor. Describe a combination
+// of main and auxiliary channels supported
+typedef struct channel_config_s {
+ audio_channel_mask_t main_channels; // channel mask for main channels
+ audio_channel_mask_t aux_channels; // channel mask for auxiliary channels
+} channel_config_t;
+
+
+// Values for bit field "mask" in buffer_config_t. If a bit is set, the corresponding field
+// in buffer_config_t must be taken into account when executing the EFFECT_CMD_SET_CONFIG command
+#define EFFECT_CONFIG_BUFFER 0x0001 // buffer field must be taken into account
+#define EFFECT_CONFIG_SMP_RATE 0x0002 // samplingRate field must be taken into account
+#define EFFECT_CONFIG_CHANNELS 0x0004 // channels field must be taken into account
+#define EFFECT_CONFIG_FORMAT 0x0008 // format field must be taken into account
+#define EFFECT_CONFIG_ACC_MODE 0x0010 // accessMode field must be taken into account
+#define EFFECT_CONFIG_PROVIDER 0x0020 // bufferProvider field must be taken into account
+#define EFFECT_CONFIG_ALL (EFFECT_CONFIG_BUFFER | EFFECT_CONFIG_SMP_RATE | \
+ EFFECT_CONFIG_CHANNELS | EFFECT_CONFIG_FORMAT | \
+ EFFECT_CONFIG_ACC_MODE | EFFECT_CONFIG_PROVIDER)
+
+
+// effect_config_s structure describes the format of the pCmdData argument of EFFECT_CMD_SET_CONFIG
+// command to configure audio parameters and buffers for effect engine input and output.
+typedef struct effect_config_s {
+ buffer_config_t inputCfg;
+ buffer_config_t outputCfg;
+} effect_config_t;
+
+
+// effect_param_s structure describes the format of the pCmdData argument of EFFECT_CMD_SET_PARAM
+// command and pCmdData and pReplyData of EFFECT_CMD_GET_PARAM command.
+// psize and vsize represent the actual size of parameter and value.
+//
+// NOTE: the start of value field inside the data field is always on a 32 bit boundary:
+//
+// +-----------+
+// | status | sizeof(int)
+// +-----------+
+// | psize | sizeof(int)
+// +-----------+
+// | vsize | sizeof(int)
+// +-----------+
+// | | | |
+// ~ parameter ~ > psize |
+// | | | > ((psize - 1)/sizeof(int) + 1) * sizeof(int)
+// +-----------+ |
+// | padding | |
+// +-----------+
+// | | |
+// ~ value ~ > vsize
+// | | |
+// +-----------+
+
+typedef struct effect_param_s {
+ int32_t status; // Transaction status (unused for command, used for reply)
+ uint32_t psize; // Parameter size
+ uint32_t vsize; // Value size
+ char data[]; // Start of Parameter + Value data
+} effect_param_t;
+
+// structure used by EFFECT_CMD_OFFLOAD command
+typedef struct effect_offload_param_s {
+ bool isOffload; // true if the playback thread the effect is attached to is offloaded
+ int ioHandle; // io handle of the playback thread the effect is attached to
+} effect_offload_param_t;
+
+
+/////////////////////////////////////////////////
+// Effect library interface
+/////////////////////////////////////////////////
+
+// Effect library interface version 3.0
+// Note that EffectsFactory.c only checks the major version component, so changes to the minor
+// number can only be used for fully backwards compatible changes
+#define EFFECT_LIBRARY_API_VERSION EFFECT_MAKE_API_VERSION(3,0)
+
+#define AUDIO_EFFECT_LIBRARY_TAG ((('A') << 24) | (('E') << 16) | (('L') << 8) | ('T'))
+
+// Every effect library must have a data structure named AUDIO_EFFECT_LIBRARY_INFO_SYM
+// and the fields of this data structure must begin with audio_effect_library_t
+
+typedef struct audio_effect_library_s {
+ // tag must be initialized to AUDIO_EFFECT_LIBRARY_TAG
+ uint32_t tag;
+ // Version of the effect library API : 0xMMMMmmmm MMMM: Major, mmmm: minor
+ uint32_t version;
+ // Name of this library
+ const char *name;
+ // Author/owner/implementor of the library
+ const char *implementor;
+
+ ////////////////////////////////////////////////////////////////////////////////
+ //
+ // Function: create_effect
+ //
+ // Description: Creates an effect engine of the specified implementation uuid and
+ // returns an effect control interface on this engine. The function will allocate the
+ // resources for an instance of the requested effect engine and return
+ // a handle on the effect control interface.
+ //
+ // Input:
+ // uuid: pointer to the effect uuid.
+ // sessionId: audio session to which this effect instance will be attached.
+ // All effects created with the same session ID are connected in series and process
+ // the same signal stream. Knowing that two effects are part of the same effect
+ // chain can help the library implement some kind of optimizations.
+ // ioId: identifies the output or input stream this effect is directed to in
+ // audio HAL.
+ // For future use especially with tunneled HW accelerated effects
+ //
+ // Input/Output:
+ // pHandle: address where to return the effect interface handle.
+ //
+ // Output:
+ // returned value: 0 successful operation.
+ // -ENODEV library failed to initialize
+ // -EINVAL invalid pEffectUuid or pHandle
+ // -ENOENT no effect with this uuid found
+ // *pHandle: updated with the effect interface handle.
+ //
+ ////////////////////////////////////////////////////////////////////////////////
+ int32_t (*create_effect)(const effect_uuid_t *uuid,
+ int32_t sessionId,
+ int32_t ioId,
+ effect_handle_t *pHandle);
+
+ ////////////////////////////////////////////////////////////////////////////////
+ //
+ // Function: release_effect
+ //
+ // Description: Releases the effect engine whose handle is given as argument.
+ // All resources allocated to this particular instance of the effect are
+ // released.
+ //
+ // Input:
+ // handle: handle on the effect interface to be released.
+ //
+ // Output:
+ // returned value: 0 successful operation.
+ // -ENODEV library failed to initialize
+ // -EINVAL invalid interface handle
+ //
+ ////////////////////////////////////////////////////////////////////////////////
+ int32_t (*release_effect)(effect_handle_t handle);
+
+ ////////////////////////////////////////////////////////////////////////////////
+ //
+ // Function: get_descriptor
+ //
+ // Description: Returns the descriptor of the effect engine which implementation UUID is
+ // given as argument.
+ //
+ // Input/Output:
+ // uuid: pointer to the effect uuid.
+ // pDescriptor: address where to return the effect descriptor.
+ //
+ // Output:
+ // returned value: 0 successful operation.
+ // -ENODEV library failed to initialize
+ // -EINVAL invalid pDescriptor or uuid
+ // *pDescriptor: updated with the effect descriptor.
+ //
+ ////////////////////////////////////////////////////////////////////////////////
+ int32_t (*get_descriptor)(const effect_uuid_t *uuid,
+ effect_descriptor_t *pDescriptor);
+} audio_effect_library_t;
+
+// Name of the hal_module_info
+#define AUDIO_EFFECT_LIBRARY_INFO_SYM AELI
+
+// Name of the hal_module_info as a string
+#define AUDIO_EFFECT_LIBRARY_INFO_SYM_AS_STR "AELI"
+
+__END_DECLS
+
+#endif // ANDROID_AUDIO_EFFECT_H
diff --git a/libhardware/include/hardware/audio_policy.h b/libhardware/include/hardware/audio_policy.h
new file mode 100644
index 0000000..99cb044
--- /dev/null
+++ b/libhardware/include/hardware/audio_policy.h
@@ -0,0 +1,457 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_AUDIO_POLICY_INTERFACE_H
+#define ANDROID_AUDIO_POLICY_INTERFACE_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+
+#include <system/audio.h>
+#include <system/audio_policy.h>
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define AUDIO_POLICY_HARDWARE_MODULE_ID "audio_policy"
+
+/**
+ * Name of the audio devices to open
+ */
+#define AUDIO_POLICY_INTERFACE "policy"
+
+/* ---------------------------------------------------------------------------- */
+
+/*
+ * The audio_policy and audio_policy_service_ops structs define the
+ * communication interfaces between the platform specific audio policy manager
+ * and Android generic audio policy manager.
+ * The platform specific audio policy manager must implement methods of the
+ * audio_policy struct.
+ * This implementation makes use of the audio_policy_service_ops to control
+ * the activity and configuration of audio input and output streams.
+ *
+ * The platform specific audio policy manager is in charge of the audio
+ * routing and volume control policies for a given platform.
+ * The main roles of this module are:
+ * - keep track of current system state (removable device connections, phone
+ * state, user requests...).
+ * System state changes and user actions are notified to audio policy
+ * manager with methods of the audio_policy.
+ *
+ * - process get_output() queries received when AudioTrack objects are
+ * created: Those queries return a handler on an output that has been
+ * selected, configured and opened by the audio policy manager and that
+ * must be used by the AudioTrack when registering to the AudioFlinger
+ * with the createTrack() method.
+ * When the AudioTrack object is released, a release_output() query
+ * is received and the audio policy manager can decide to close or
+ * reconfigure the output depending on other streams using this output and
+ * current system state.
+ *
+ * - similarly process get_input() and release_input() queries received from
+ * AudioRecord objects and configure audio inputs.
+ * - process volume control requests: the stream volume is converted from
+ * an index value (received from UI) to a float value applicable to each
+ * output as a function of platform specific settings and current output
+ * route (destination device). It also make sure that streams are not
+ * muted if not allowed (e.g. camera shutter sound in some countries).
+ */
+
+/* XXX: this should be defined OUTSIDE of frameworks/base */
+struct effect_descriptor_s;
+
+struct audio_policy {
+ /*
+ * configuration functions
+ */
+
+ /* indicate a change in device connection status */
+ int (*set_device_connection_state)(struct audio_policy *pol,
+ audio_devices_t device,
+ audio_policy_dev_state_t state,
+ const char *device_address);
+
+ /* retrieve a device connection status */
+ audio_policy_dev_state_t (*get_device_connection_state)(
+ const struct audio_policy *pol,
+ audio_devices_t device,
+ const char *device_address);
+
+ /* indicate a change in phone state. Valid phones states are defined
+ * by audio_mode_t */
+ void (*set_phone_state)(struct audio_policy *pol, audio_mode_t state);
+
+ /* deprecated, never called (was "indicate a change in ringer mode") */
+ void (*set_ringer_mode)(struct audio_policy *pol, uint32_t mode,
+ uint32_t mask);
+
+ /* force using a specific device category for the specified usage */
+ void (*set_force_use)(struct audio_policy *pol,
+ audio_policy_force_use_t usage,
+ audio_policy_forced_cfg_t config);
+
+ /* retrieve current device category forced for a given usage */
+ audio_policy_forced_cfg_t (*get_force_use)(const struct audio_policy *pol,
+ audio_policy_force_use_t usage);
+
+ /* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE
+ * can still be muted. */
+ void (*set_can_mute_enforced_audible)(struct audio_policy *pol,
+ bool can_mute);
+
+ /* check proper initialization */
+ int (*init_check)(const struct audio_policy *pol);
+
+ /*
+ * Audio routing query functions
+ */
+
+ /* request an output appropriate for playback of the supplied stream type and
+ * parameters */
+ audio_io_handle_t (*get_output)(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ uint32_t samplingRate,
+ audio_format_t format,
+ audio_channel_mask_t channelMask,
+ audio_output_flags_t flags,
+ const audio_offload_info_t *offloadInfo);
+
+ /* indicates to the audio policy manager that the output starts being used
+ * by corresponding stream. */
+ int (*start_output)(struct audio_policy *pol,
+ audio_io_handle_t output,
+ audio_stream_type_t stream,
+ int session);
+
+ /* indicates to the audio policy manager that the output stops being used
+ * by corresponding stream. */
+ int (*stop_output)(struct audio_policy *pol,
+ audio_io_handle_t output,
+ audio_stream_type_t stream,
+ int session);
+
+ /* releases the output. */
+ void (*release_output)(struct audio_policy *pol, audio_io_handle_t output);
+
+ /* request an input appropriate for record from the supplied device with
+ * supplied parameters. */
+ audio_io_handle_t (*get_input)(struct audio_policy *pol, audio_source_t inputSource,
+ uint32_t samplingRate,
+ audio_format_t format,
+ audio_channel_mask_t channelMask,
+ audio_in_acoustics_t acoustics);
+
+ /* indicates to the audio policy manager that the input starts being used */
+ int (*start_input)(struct audio_policy *pol, audio_io_handle_t input);
+
+ /* indicates to the audio policy manager that the input stops being used. */
+ int (*stop_input)(struct audio_policy *pol, audio_io_handle_t input);
+
+ /* releases the input. */
+ void (*release_input)(struct audio_policy *pol, audio_io_handle_t input);
+
+ /*
+ * volume control functions
+ */
+
+ /* initialises stream volume conversion parameters by specifying volume
+ * index range. The index range for each stream is defined by AudioService. */
+ void (*init_stream_volume)(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int index_min,
+ int index_max);
+
+ /* sets the new stream volume at a level corresponding to the supplied
+ * index. The index is within the range specified by init_stream_volume() */
+ int (*set_stream_volume_index)(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int index);
+
+ /* retrieve current volume index for the specified stream */
+ int (*get_stream_volume_index)(const struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int *index);
+
+ /* sets the new stream volume at a level corresponding to the supplied
+ * index for the specified device.
+ * The index is within the range specified by init_stream_volume() */
+ int (*set_stream_volume_index_for_device)(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int index,
+ audio_devices_t device);
+
+ /* retrieve current volume index for the specified stream for the specified device */
+ int (*get_stream_volume_index_for_device)(const struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int *index,
+ audio_devices_t device);
+
+ /* return the strategy corresponding to a given stream type */
+ uint32_t (*get_strategy_for_stream)(const struct audio_policy *pol,
+ audio_stream_type_t stream);
+
+ /* return the enabled output devices for the given stream type */
+ audio_devices_t (*get_devices_for_stream)(const struct audio_policy *pol,
+ audio_stream_type_t stream);
+
+ /* Audio effect management */
+ audio_io_handle_t (*get_output_for_effect)(struct audio_policy *pol,
+ const struct effect_descriptor_s *desc);
+
+ int (*register_effect)(struct audio_policy *pol,
+ const struct effect_descriptor_s *desc,
+ audio_io_handle_t output,
+ uint32_t strategy,
+ int session,
+ int id);
+
+ int (*unregister_effect)(struct audio_policy *pol, int id);
+
+ int (*set_effect_enabled)(struct audio_policy *pol, int id, bool enabled);
+
+ bool (*is_stream_active)(const struct audio_policy *pol,
+ audio_stream_type_t stream,
+ uint32_t in_past_ms);
+
+ bool (*is_stream_active_remotely)(const struct audio_policy *pol,
+ audio_stream_type_t stream,
+ uint32_t in_past_ms);
+
+ bool (*is_source_active)(const struct audio_policy *pol,
+ audio_source_t source);
+
+ /* dump state */
+ int (*dump)(const struct audio_policy *pol, int fd);
+
+ /* check if offload is possible for given sample rate, bitrate, duration, ... */
+ bool (*is_offload_supported)(const struct audio_policy *pol,
+ const audio_offload_info_t *info);
+};
+
+
+struct audio_policy_service_ops {
+ /*
+ * Audio output Control functions
+ */
+
+ /* Opens an audio output with the requested parameters.
+ *
+ * The parameter values can indicate to use the default values in case the
+ * audio policy manager has no specific requirements for the output being
+ * opened.
+ *
+ * When the function returns, the parameter values reflect the actual
+ * values used by the audio hardware output stream.
+ *
+ * The audio policy manager can check if the proposed parameters are
+ * suitable or not and act accordingly.
+ */
+ audio_io_handle_t (*open_output)(void *service,
+ audio_devices_t *pDevices,
+ uint32_t *pSamplingRate,
+ audio_format_t *pFormat,
+ audio_channel_mask_t *pChannelMask,
+ uint32_t *pLatencyMs,
+ audio_output_flags_t flags);
+
+ /* creates a special output that is duplicated to the two outputs passed as
+ * arguments. The duplication is performed by
+ * a special mixer thread in the AudioFlinger.
+ */
+ audio_io_handle_t (*open_duplicate_output)(void *service,
+ audio_io_handle_t output1,
+ audio_io_handle_t output2);
+
+ /* closes the output stream */
+ int (*close_output)(void *service, audio_io_handle_t output);
+
+ /* suspends the output.
+ *
+ * When an output is suspended, the corresponding audio hardware output
+ * stream is placed in standby and the AudioTracks attached to the mixer
+ * thread are still processed but the output mix is discarded.
+ */
+ int (*suspend_output)(void *service, audio_io_handle_t output);
+
+ /* restores a suspended output. */
+ int (*restore_output)(void *service, audio_io_handle_t output);
+
+ /* */
+ /* Audio input Control functions */
+ /* */
+
+ /* opens an audio input
+ * deprecated - new implementations should use open_input_on_module,
+ * and the acoustics parameter is ignored
+ */
+ audio_io_handle_t (*open_input)(void *service,
+ audio_devices_t *pDevices,
+ uint32_t *pSamplingRate,
+ audio_format_t *pFormat,
+ audio_channel_mask_t *pChannelMask,
+ audio_in_acoustics_t acoustics);
+
+ /* closes an audio input */
+ int (*close_input)(void *service, audio_io_handle_t input);
+
+ /* */
+ /* misc control functions */
+ /* */
+
+ /* set a stream volume for a particular output.
+ *
+ * For the same user setting, a given stream type can have different
+ * volumes for each output (destination device) it is attached to.
+ */
+ int (*set_stream_volume)(void *service,
+ audio_stream_type_t stream,
+ float volume,
+ audio_io_handle_t output,
+ int delay_ms);
+
+ /* invalidate a stream type, causing a reroute to an unspecified new output */
+ int (*invalidate_stream)(void *service,
+ audio_stream_type_t stream);
+
+ /* function enabling to send proprietary informations directly from audio
+ * policy manager to audio hardware interface. */
+ void (*set_parameters)(void *service,
+ audio_io_handle_t io_handle,
+ const char *kv_pairs,
+ int delay_ms);
+
+ /* function enabling to receive proprietary informations directly from
+ * audio hardware interface to audio policy manager.
+ *
+ * Returns a pointer to a heap allocated string. The caller is responsible
+ * for freeing the memory for it using free().
+ */
+
+ char * (*get_parameters)(void *service, audio_io_handle_t io_handle,
+ const char *keys);
+
+ /* request the playback of a tone on the specified stream.
+ * used for instance to replace notification sounds when playing over a
+ * telephony device during a phone call.
+ */
+ int (*start_tone)(void *service,
+ audio_policy_tone_t tone,
+ audio_stream_type_t stream);
+
+ int (*stop_tone)(void *service);
+
+ /* set down link audio volume. */
+ int (*set_voice_volume)(void *service,
+ float volume,
+ int delay_ms);
+
+ /* move effect to the specified output */
+ int (*move_effects)(void *service,
+ int session,
+ audio_io_handle_t src_output,
+ audio_io_handle_t dst_output);
+
+ /* loads an audio hw module.
+ *
+ * The module name passed is the base name of the HW module library, e.g "primary" or "a2dp".
+ * The function returns a handle on the module that will be used to specify a particular
+ * module when calling open_output_on_module() or open_input_on_module()
+ */
+ audio_module_handle_t (*load_hw_module)(void *service,
+ const char *name);
+
+ /* Opens an audio output on a particular HW module.
+ *
+ * Same as open_output() but specifying a specific HW module on which the output must be opened.
+ */
+ audio_io_handle_t (*open_output_on_module)(void *service,
+ audio_module_handle_t module,
+ audio_devices_t *pDevices,
+ uint32_t *pSamplingRate,
+ audio_format_t *pFormat,
+ audio_channel_mask_t *pChannelMask,
+ uint32_t *pLatencyMs,
+ audio_output_flags_t flags,
+ const audio_offload_info_t *offloadInfo);
+
+ /* Opens an audio input on a particular HW module.
+ *
+ * Same as open_input() but specifying a specific HW module on which the input must be opened.
+ * Also removed deprecated acoustics parameter
+ */
+ audio_io_handle_t (*open_input_on_module)(void *service,
+ audio_module_handle_t module,
+ audio_devices_t *pDevices,
+ uint32_t *pSamplingRate,
+ audio_format_t *pFormat,
+ audio_channel_mask_t *pChannelMask);
+
+};
+
+/**********************************************************************/
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+typedef struct audio_policy_module {
+ struct hw_module_t common;
+} audio_policy_module_t;
+
+struct audio_policy_device {
+ /**
+ * Common methods of the audio policy device. This *must* be the first member of
+ * audio_policy_device as users of this structure will cast a hw_device_t to
+ * audio_policy_device pointer in contexts where it's known the hw_device_t references an
+ * audio_policy_device.
+ */
+ struct hw_device_t common;
+
+ int (*create_audio_policy)(const struct audio_policy_device *device,
+ struct audio_policy_service_ops *aps_ops,
+ void *service,
+ struct audio_policy **ap);
+
+ int (*destroy_audio_policy)(const struct audio_policy_device *device,
+ struct audio_policy *ap);
+};
+
+/** convenience API for opening and closing a supported device */
+
+static inline int audio_policy_dev_open(const hw_module_t* module,
+ struct audio_policy_device** device)
+{
+ return module->methods->open(module, AUDIO_POLICY_INTERFACE,
+ (hw_device_t**)device);
+}
+
+static inline int audio_policy_dev_close(struct audio_policy_device* device)
+{
+ return device->common.close(&device->common);
+}
+
+
+__END_DECLS
+
+#endif // ANDROID_AUDIO_POLICY_INTERFACE_H
diff --git a/libhardware/include/hardware/ble_advertiser.h b/libhardware/include/hardware/ble_advertiser.h
new file mode 100644
index 0000000..f486ed8
--- /dev/null
+++ b/libhardware/include/hardware/ble_advertiser.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BLE_ADVERTISER_H
+#define ANDROID_INCLUDE_BLE_ADVERTISER_H
+
+#include <base/callback_forward.h>
+#include <stdint.h>
+#include <vector>
+#include "bt_common_types.h"
+#include "bt_gatt_types.h"
+
+using std::vector;
+
+/** Callback invoked when multi-adv operation has completed */
+using BleAdvertiserCb = base::Callback<void(uint8_t /* status */)>;
+
+class BleAdvertiserInterface {
+ public:
+ virtual ~BleAdvertiserInterface() = default;
+
+ /** Registers an advertiser with the stack */
+ virtual void RegisterAdvertiser(
+ base::Callback<void(uint8_t /* advertiser_id */, uint8_t /* status */)>) = 0;
+
+ /* This function disable a Multi-ADV instance */
+ virtual void Unregister(uint8_t advertiser_id) = 0;
+
+ /** Set the advertising data or scan response data */
+ virtual void SetData(bool set_scan_rsp, vector<uint8_t> data) = 0;
+
+ /** Start or stop advertising */
+ virtual void Enable(bool start, BleAdvertiserCb cb) = 0;
+
+ /* Set the parameters as per spec, user manual specified values */
+ virtual void MultiAdvSetParameters(int advertiser_id, int min_interval,
+ int max_interval, int adv_type,
+ int chnl_map, int tx_power,
+ BleAdvertiserCb cb) = 0;
+
+ /* Setup the data for the specified instance */
+ virtual void MultiAdvSetInstData(int advertiser_id, bool set_scan_rsp,
+ vector<uint8_t> data,
+ BleAdvertiserCb cb) = 0;
+
+ /* Enable the advertising instance as per spec */
+ virtual void MultiAdvEnable(uint8_t advertiser_id, bool enable,
+ BleAdvertiserCb cb, int timeout_s,
+ BleAdvertiserCb timeout_cb) = 0;
+};
+
+#endif /* ANDROID_INCLUDE_BLE_ADVERTISER_H */
diff --git a/libhardware/include/hardware/ble_scanner.h b/libhardware/include/hardware/ble_scanner.h
new file mode 100644
index 0000000..dca7e43
--- /dev/null
+++ b/libhardware/include/hardware/ble_scanner.h
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BLE_SCANNER_H
+#define ANDROID_INCLUDE_BLE_SCANNER_H
+
+#include <stdint.h>
+#include <vector>
+#include "bt_gatt_types.h"
+#include "bt_common_types.h"
+#include "bt_gatt_client.h"
+
+/** Callback invoked in response to register_scanner */
+typedef void (*register_scanner_callback)(int status, int scanner_id,
+ bt_uuid_t *app_uuid);
+
+/** Callback invoked when batchscan storage config operation has completed */
+typedef void (*batchscan_cfg_storage_callback)(int client_if, int status);
+
+/** Callback invoked when batchscan enable / disable operation has completed */
+typedef void (*batchscan_enable_disable_callback)(int action, int client_if, int status);
+
+/** Callback invoked when batchscan reports are obtained */
+typedef void (*batchscan_reports_callback)(int client_if, int status, int report_format,
+ int num_records, std::vector<uint8_t> data);
+
+/** Callback invoked when batchscan storage threshold limit is crossed */
+typedef void (*batchscan_threshold_callback)(int client_if);
+
+/** Track ADV VSE callback invoked when tracked device is found or lost */
+typedef void (*track_adv_event_callback)(btgatt_track_adv_info_t *p_track_adv_info);
+
+/** Callback invoked when scan parameter setup has completed */
+typedef void (*scan_parameter_setup_completed_callback)(int client_if,
+ btgattc_error_t status);
+
+/** Callback for scan results */
+typedef void (*scan_result_callback)(bt_bdaddr_t* bda, int rssi, std::vector<uint8_t> adv_data);
+
+/** Callback invoked when a scan filter configuration command has completed */
+typedef void (*scan_filter_cfg_callback)(int action, int client_if, int status, int filt_type,
+ int avbl_space);
+
+/** Callback invoked when scan param has been added, cleared, or deleted */
+typedef void (*scan_filter_param_callback)(int action, int client_if, int status,
+ int avbl_space);
+
+/** Callback invoked when a scan filter configuration command has completed */
+typedef void (*scan_filter_status_callback)(int enable, int client_if, int status);
+
+typedef struct {
+ register_scanner_callback register_scanner_cb;
+ scan_result_callback scan_result_cb;
+ batchscan_cfg_storage_callback batchscan_cfg_storage_cb;
+ batchscan_enable_disable_callback batchscan_enb_disable_cb;
+ batchscan_reports_callback batchscan_reports_cb;
+ batchscan_threshold_callback batchscan_threshold_cb;
+ track_adv_event_callback track_adv_event_cb;
+ scan_parameter_setup_completed_callback scan_parameter_setup_completed_cb;
+ scan_filter_cfg_callback scan_filter_cfg_cb;
+ scan_filter_param_callback scan_filter_param_cb;
+ scan_filter_status_callback scan_filter_status_cb;
+} btgatt_scanner_callbacks_t;
+
+typedef struct {
+ /** Registers a scanner with the stack */
+ bt_status_t (*register_scanner)( bt_uuid_t *uuid );
+
+ /** Unregister a scanner from the stack */
+ bt_status_t (*unregister_scanner)(int scanner_id );
+
+ /** Start or stop LE device scanning */
+ bt_status_t (*scan)( bool start );
+
+ /** Setup scan filter params */
+ bt_status_t (*scan_filter_param_setup)(btgatt_filt_param_setup_t filt_param);
+
+
+ /** Configure a scan filter condition */
+ bt_status_t (*scan_filter_add_remove)(int client_if, int action, int filt_type,
+ int filt_index, int company_id,
+ int company_id_mask, const bt_uuid_t *p_uuid,
+ const bt_uuid_t *p_uuid_mask, const bt_bdaddr_t *bd_addr,
+ char addr_type, std::vector<uint8_t> data,
+ std::vector<uint8_t> p_mask);
+
+ /** Clear all scan filter conditions for specific filter index*/
+ bt_status_t (*scan_filter_clear)(int client_if, int filt_index);
+
+ /** Enable / disable scan filter feature*/
+ bt_status_t (*scan_filter_enable)(int client_if, bool enable);
+
+ /** Sets the LE scan interval and window in units of N*0.625 msec */
+ bt_status_t (*set_scan_parameters)(int client_if, int scan_interval, int scan_window);
+
+ /* Configure the batchscan storage */
+ bt_status_t (*batchscan_cfg_storage)(int client_if, int batch_scan_full_max,
+ int batch_scan_trunc_max, int batch_scan_notify_threshold);
+
+ /* Enable batchscan */
+ bt_status_t (*batchscan_enb_batch_scan)(int client_if, int scan_mode,
+ int scan_interval, int scan_window, int addr_type, int discard_rule);
+
+ /* Disable batchscan */
+ bt_status_t (*batchscan_dis_batch_scan)(int client_if);
+
+ /* Read out batchscan reports */
+ bt_status_t (*batchscan_read_reports)(int client_if, int scan_mode);
+
+} btgatt_scanner_interface_t;
+
+#endif /* ANDROID_INCLUDE_BLE_SCANNER_H */
\ No newline at end of file
diff --git a/libhardware/include/hardware/bluetooth.h b/libhardware/include/hardware/bluetooth.h
new file mode 100644
index 0000000..125a95b
--- /dev/null
+++ b/libhardware/include/hardware/bluetooth.h
@@ -0,0 +1,610 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BLUETOOTH_H
+#define ANDROID_INCLUDE_BLUETOOTH_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+/**
+ * The Bluetooth Hardware Module ID
+ */
+
+#define BT_HARDWARE_MODULE_ID "bluetooth"
+#define BT_STACK_MODULE_ID "bluetooth"
+#define BT_STACK_TEST_MODULE_ID "bluetooth_test"
+
+
+/* Bluetooth profile interface IDs */
+
+#define BT_PROFILE_HANDSFREE_ID "handsfree"
+#define BT_PROFILE_HANDSFREE_CLIENT_ID "handsfree_client"
+#define BT_PROFILE_ADVANCED_AUDIO_ID "a2dp"
+#define BT_PROFILE_ADVANCED_AUDIO_SINK_ID "a2dp_sink"
+#define BT_PROFILE_HEALTH_ID "health"
+#define BT_PROFILE_SOCKETS_ID "socket"
+#define BT_PROFILE_HIDHOST_ID "hidhost"
+#define BT_PROFILE_PAN_ID "pan"
+#define BT_PROFILE_MAP_CLIENT_ID "map_client"
+#define BT_PROFILE_SDP_CLIENT_ID "sdp"
+#define BT_PROFILE_GATT_ID "gatt"
+#define BT_PROFILE_AV_RC_ID "avrcp"
+#define BT_PROFILE_AV_RC_CTRL_ID "avrcp_ctrl"
+
+/** Bluetooth Address */
+typedef struct {
+ uint8_t address[6];
+} __attribute__((packed))bt_bdaddr_t;
+
+/** Bluetooth Device Name */
+typedef struct {
+ uint8_t name[249];
+} __attribute__((packed))bt_bdname_t;
+
+/** Bluetooth Adapter Visibility Modes*/
+typedef enum {
+ BT_SCAN_MODE_NONE,
+ BT_SCAN_MODE_CONNECTABLE,
+ BT_SCAN_MODE_CONNECTABLE_DISCOVERABLE
+} bt_scan_mode_t;
+
+/** Bluetooth Adapter State */
+typedef enum {
+ BT_STATE_OFF,
+ BT_STATE_ON
+} bt_state_t;
+
+/** Bluetooth Error Status */
+/** We need to build on this */
+
+typedef enum {
+ BT_STATUS_SUCCESS,
+ BT_STATUS_FAIL,
+ BT_STATUS_NOT_READY,
+ BT_STATUS_NOMEM,
+ BT_STATUS_BUSY,
+ BT_STATUS_DONE, /* request already completed */
+ BT_STATUS_UNSUPPORTED,
+ BT_STATUS_PARM_INVALID,
+ BT_STATUS_UNHANDLED,
+ BT_STATUS_AUTH_FAILURE,
+ BT_STATUS_RMT_DEV_DOWN,
+ BT_STATUS_AUTH_REJECTED,
+ BT_STATUS_JNI_ENVIRONMENT_ERROR,
+ BT_STATUS_JNI_THREAD_ATTACH_ERROR,
+ BT_STATUS_WAKELOCK_ERROR
+} bt_status_t;
+
+/** Bluetooth PinKey Code */
+typedef struct {
+ uint8_t pin[16];
+} __attribute__((packed))bt_pin_code_t;
+
+typedef struct {
+ uint8_t status;
+ uint8_t ctrl_state; /* stack reported state */
+ uint64_t tx_time; /* in ms */
+ uint64_t rx_time; /* in ms */
+ uint64_t idle_time; /* in ms */
+ uint64_t energy_used; /* a product of mA, V and ms */
+} __attribute__((packed))bt_activity_energy_info;
+
+typedef struct {
+ int32_t app_uid;
+ uint64_t tx_bytes;
+ uint64_t rx_bytes;
+} __attribute__((packed))bt_uid_traffic_t;
+
+/** Bluetooth Adapter Discovery state */
+typedef enum {
+ BT_DISCOVERY_STOPPED,
+ BT_DISCOVERY_STARTED
+} bt_discovery_state_t;
+
+/** Bluetooth ACL connection state */
+typedef enum {
+ BT_ACL_STATE_CONNECTED,
+ BT_ACL_STATE_DISCONNECTED
+} bt_acl_state_t;
+
+/** Bluetooth 128-bit UUID */
+typedef struct {
+ uint8_t uu[16];
+} bt_uuid_t;
+
+/** Bluetooth SDP service record */
+typedef struct
+{
+ bt_uuid_t uuid;
+ uint16_t channel;
+ char name[256]; // what's the maximum length
+} bt_service_record_t;
+
+
+/** Bluetooth Remote Version info */
+typedef struct
+{
+ int version;
+ int sub_ver;
+ int manufacturer;
+} bt_remote_version_t;
+
+typedef struct
+{
+ uint16_t version_supported;
+ uint8_t local_privacy_enabled;
+ uint8_t max_adv_instance;
+ uint8_t rpa_offload_supported;
+ uint8_t max_irk_list_size;
+ uint8_t max_adv_filter_supported;
+ uint8_t activity_energy_info_supported;
+ uint16_t scan_result_storage_size;
+ uint16_t total_trackable_advertisers;
+ bool extended_scan_support;
+ bool debug_logging_supported;
+}bt_local_le_features_t;
+
+/* Bluetooth Adapter and Remote Device property types */
+typedef enum {
+ /* Properties common to both adapter and remote device */
+ /**
+ * Description - Bluetooth Device Name
+ * Access mode - Adapter name can be GET/SET. Remote device can be GET
+ * Data type - bt_bdname_t
+ */
+ BT_PROPERTY_BDNAME = 0x1,
+ /**
+ * Description - Bluetooth Device Address
+ * Access mode - Only GET.
+ * Data type - bt_bdaddr_t
+ */
+ BT_PROPERTY_BDADDR,
+ /**
+ * Description - Bluetooth Service 128-bit UUIDs
+ * Access mode - Only GET.
+ * Data type - Array of bt_uuid_t (Array size inferred from property length).
+ */
+ BT_PROPERTY_UUIDS,
+ /**
+ * Description - Bluetooth Class of Device as found in Assigned Numbers
+ * Access mode - Only GET.
+ * Data type - uint32_t.
+ */
+ BT_PROPERTY_CLASS_OF_DEVICE,
+ /**
+ * Description - Device Type - BREDR, BLE or DUAL Mode
+ * Access mode - Only GET.
+ * Data type - bt_device_type_t
+ */
+ BT_PROPERTY_TYPE_OF_DEVICE,
+ /**
+ * Description - Bluetooth Service Record
+ * Access mode - Only GET.
+ * Data type - bt_service_record_t
+ */
+ BT_PROPERTY_SERVICE_RECORD,
+
+ /* Properties unique to adapter */
+ /**
+ * Description - Bluetooth Adapter scan mode
+ * Access mode - GET and SET
+ * Data type - bt_scan_mode_t.
+ */
+ BT_PROPERTY_ADAPTER_SCAN_MODE,
+ /**
+ * Description - List of bonded devices
+ * Access mode - Only GET.
+ * Data type - Array of bt_bdaddr_t of the bonded remote devices
+ * (Array size inferred from property length).
+ */
+ BT_PROPERTY_ADAPTER_BONDED_DEVICES,
+ /**
+ * Description - Bluetooth Adapter Discovery timeout (in seconds)
+ * Access mode - GET and SET
+ * Data type - uint32_t
+ */
+ BT_PROPERTY_ADAPTER_DISCOVERY_TIMEOUT,
+
+ /* Properties unique to remote device */
+ /**
+ * Description - User defined friendly name of the remote device
+ * Access mode - GET and SET
+ * Data type - bt_bdname_t.
+ */
+ BT_PROPERTY_REMOTE_FRIENDLY_NAME,
+ /**
+ * Description - RSSI value of the inquired remote device
+ * Access mode - Only GET.
+ * Data type - int32_t.
+ */
+ BT_PROPERTY_REMOTE_RSSI,
+ /**
+ * Description - Remote version info
+ * Access mode - SET/GET.
+ * Data type - bt_remote_version_t.
+ */
+
+ BT_PROPERTY_REMOTE_VERSION_INFO,
+
+ /**
+ * Description - Local LE features
+ * Access mode - GET.
+ * Data type - bt_local_le_features_t.
+ */
+ BT_PROPERTY_LOCAL_LE_FEATURES,
+
+ BT_PROPERTY_REMOTE_DEVICE_TIMESTAMP = 0xFF,
+} bt_property_type_t;
+
+/** Bluetooth Adapter Property data structure */
+typedef struct
+{
+ bt_property_type_t type;
+ int len;
+ void *val;
+} bt_property_t;
+
+/** Bluetooth Out Of Band data for bonding */
+typedef struct
+{
+ uint8_t le_bt_dev_addr[7]; /* LE Bluetooth Device Address */
+ uint8_t c192[16]; /* Simple Pairing Hash C-192 */
+ uint8_t r192[16]; /* Simple Pairing Randomizer R-192 */
+ uint8_t c256[16]; /* Simple Pairing Hash C-256 */
+ uint8_t r256[16]; /* Simple Pairing Randomizer R-256 */
+ uint8_t sm_tk[16]; /* Security Manager TK Value */
+ uint8_t le_sc_c[16]; /* LE Secure Connections Confirmation Value */
+ uint8_t le_sc_r[16]; /* LE Secure Connections Random Value */
+} bt_out_of_band_data_t;
+
+
+
+/** Bluetooth Device Type */
+typedef enum {
+ BT_DEVICE_DEVTYPE_BREDR = 0x1,
+ BT_DEVICE_DEVTYPE_BLE,
+ BT_DEVICE_DEVTYPE_DUAL
+} bt_device_type_t;
+/** Bluetooth Bond state */
+typedef enum {
+ BT_BOND_STATE_NONE,
+ BT_BOND_STATE_BONDING,
+ BT_BOND_STATE_BONDED
+} bt_bond_state_t;
+
+/** Bluetooth SSP Bonding Variant */
+typedef enum {
+ BT_SSP_VARIANT_PASSKEY_CONFIRMATION,
+ BT_SSP_VARIANT_PASSKEY_ENTRY,
+ BT_SSP_VARIANT_CONSENT,
+ BT_SSP_VARIANT_PASSKEY_NOTIFICATION
+} bt_ssp_variant_t;
+
+#define BT_MAX_NUM_UUIDS 32
+
+/** Bluetooth Interface callbacks */
+
+/** Bluetooth Enable/Disable Callback. */
+typedef void (*adapter_state_changed_callback)(bt_state_t state);
+
+/** GET/SET Adapter Properties callback */
+/* TODO: For the GET/SET property APIs/callbacks, we may need a session
+ * identifier to associate the call with the callback. This would be needed
+ * whenever more than one simultaneous instance of the same adapter_type
+ * is get/set.
+ *
+ * If this is going to be handled in the Java framework, then we do not need
+ * to manage sessions here.
+ */
+typedef void (*adapter_properties_callback)(bt_status_t status,
+ int num_properties,
+ bt_property_t *properties);
+
+/** GET/SET Remote Device Properties callback */
+/** TODO: For remote device properties, do not see a need to get/set
+ * multiple properties - num_properties shall be 1
+ */
+typedef void (*remote_device_properties_callback)(bt_status_t status,
+ bt_bdaddr_t *bd_addr,
+ int num_properties,
+ bt_property_t *properties);
+
+/** New device discovered callback */
+/** If EIR data is not present, then BD_NAME and RSSI shall be NULL and -1
+ * respectively */
+typedef void (*device_found_callback)(int num_properties,
+ bt_property_t *properties);
+
+/** Discovery state changed callback */
+typedef void (*discovery_state_changed_callback)(bt_discovery_state_t state);
+
+/** Bluetooth Legacy PinKey Request callback */
+typedef void (*pin_request_callback)(bt_bdaddr_t *remote_bd_addr,
+ bt_bdname_t *bd_name, uint32_t cod, bool min_16_digit);
+
+/** Bluetooth SSP Request callback - Just Works & Numeric Comparison*/
+/** pass_key - Shall be 0 for BT_SSP_PAIRING_VARIANT_CONSENT &
+ * BT_SSP_PAIRING_PASSKEY_ENTRY */
+/* TODO: Passkey request callback shall not be needed for devices with display
+ * capability. We still need support this in the stack for completeness */
+typedef void (*ssp_request_callback)(bt_bdaddr_t *remote_bd_addr,
+ bt_bdname_t *bd_name,
+ uint32_t cod,
+ bt_ssp_variant_t pairing_variant,
+ uint32_t pass_key);
+
+/** Bluetooth Bond state changed callback */
+/* Invoked in response to create_bond, cancel_bond or remove_bond */
+typedef void (*bond_state_changed_callback)(bt_status_t status,
+ bt_bdaddr_t *remote_bd_addr,
+ bt_bond_state_t state);
+
+/** Bluetooth ACL connection state changed callback */
+typedef void (*acl_state_changed_callback)(bt_status_t status, bt_bdaddr_t *remote_bd_addr,
+ bt_acl_state_t state);
+
+typedef enum {
+ ASSOCIATE_JVM,
+ DISASSOCIATE_JVM
+} bt_cb_thread_evt;
+
+/** Thread Associate/Disassociate JVM Callback */
+/* Callback that is invoked by the callback thread to allow upper layer to attach/detach to/from
+ * the JVM */
+typedef void (*callback_thread_event)(bt_cb_thread_evt evt);
+
+/** Bluetooth Test Mode Callback */
+/* Receive any HCI event from controller. Must be in DUT Mode for this callback to be received */
+typedef void (*dut_mode_recv_callback)(uint16_t opcode, uint8_t *buf, uint8_t len);
+
+/* LE Test mode callbacks
+* This callback shall be invoked whenever the le_tx_test, le_rx_test or le_test_end is invoked
+* The num_packets is valid only for le_test_end command */
+typedef void (*le_test_mode_callback)(bt_status_t status, uint16_t num_packets);
+
+/** Callback invoked when energy details are obtained */
+/* Ctrl_state-Current controller state-Active-1,scan-2,or idle-3 state as defined by HCI spec.
+ * If the ctrl_state value is 0, it means the API call failed
+ * Time values-In milliseconds as returned by the controller
+ * Energy used-Value as returned by the controller
+ * Status-Provides the status of the read_energy_info API call
+ * uid_data provides an array of bt_uid_traffic_t, where the array is terminated by an element with
+ * app_uid set to -1.
+ */
+typedef void (*energy_info_callback)(bt_activity_energy_info *energy_info,
+ bt_uid_traffic_t *uid_data);
+
+/** TODO: Add callbacks for Link Up/Down and other generic
+ * notifications/callbacks */
+
+/** Bluetooth DM callback structure. */
+typedef struct {
+ /** set to sizeof(bt_callbacks_t) */
+ size_t size;
+ adapter_state_changed_callback adapter_state_changed_cb;
+ adapter_properties_callback adapter_properties_cb;
+ remote_device_properties_callback remote_device_properties_cb;
+ device_found_callback device_found_cb;
+ discovery_state_changed_callback discovery_state_changed_cb;
+ pin_request_callback pin_request_cb;
+ ssp_request_callback ssp_request_cb;
+ bond_state_changed_callback bond_state_changed_cb;
+ acl_state_changed_callback acl_state_changed_cb;
+ callback_thread_event thread_evt_cb;
+ dut_mode_recv_callback dut_mode_recv_cb;
+ le_test_mode_callback le_test_mode_cb;
+ energy_info_callback energy_info_cb;
+} bt_callbacks_t;
+
+typedef void (*alarm_cb)(void *data);
+typedef bool (*set_wake_alarm_callout)(uint64_t delay_millis, bool should_wake, alarm_cb cb, void *data);
+typedef int (*acquire_wake_lock_callout)(const char *lock_name);
+typedef int (*release_wake_lock_callout)(const char *lock_name);
+
+/** The set of functions required by bluedroid to set wake alarms and
+ * grab wake locks. This struct is passed into the stack through the
+ * |set_os_callouts| function on |bt_interface_t|.
+ */
+typedef struct {
+ /* set to sizeof(bt_os_callouts_t) */
+ size_t size;
+
+ set_wake_alarm_callout set_wake_alarm;
+ acquire_wake_lock_callout acquire_wake_lock;
+ release_wake_lock_callout release_wake_lock;
+} bt_os_callouts_t;
+
+/** NOTE: By default, no profiles are initialized at the time of init/enable.
+ * Whenever the application invokes the 'init' API of a profile, then one of
+ * the following shall occur:
+ *
+ * 1.) If Bluetooth is not enabled, then the Bluetooth core shall mark the
+ * profile as enabled. Subsequently, when the application invokes the
+ * Bluetooth 'enable', as part of the enable sequence the profile that were
+ * marked shall be enabled by calling appropriate stack APIs. The
+ * 'adapter_properties_cb' shall return the list of UUIDs of the
+ * enabled profiles.
+ *
+ * 2.) If Bluetooth is enabled, then the Bluetooth core shall invoke the stack
+ * profile API to initialize the profile and trigger a
+ * 'adapter_properties_cb' with the current list of UUIDs including the
+ * newly added profile's UUID.
+ *
+ * The reverse shall occur whenever the profile 'cleanup' APIs are invoked
+ */
+
+/** Represents the standard Bluetooth DM interface. */
+typedef struct {
+ /** set to sizeof(bt_interface_t) */
+ size_t size;
+ /**
+ * Opens the interface and provides the callback routines
+ * to the implemenation of this interface.
+ */
+ int (*init)(bt_callbacks_t* callbacks );
+
+ /** Enable Bluetooth. */
+ int (*enable)(bool guest_mode);
+
+ /** Disable Bluetooth. */
+ int (*disable)(void);
+
+ /** Closes the interface. */
+ void (*cleanup)(void);
+
+ /** Get all Bluetooth Adapter properties at init */
+ int (*get_adapter_properties)(void);
+
+ /** Get Bluetooth Adapter property of 'type' */
+ int (*get_adapter_property)(bt_property_type_t type);
+
+ /** Set Bluetooth Adapter property of 'type' */
+ /* Based on the type, val shall be one of
+ * bt_bdaddr_t or bt_bdname_t or bt_scanmode_t etc
+ */
+ int (*set_adapter_property)(const bt_property_t *property);
+
+ /** Get all Remote Device properties */
+ int (*get_remote_device_properties)(bt_bdaddr_t *remote_addr);
+
+ /** Get Remote Device property of 'type' */
+ int (*get_remote_device_property)(bt_bdaddr_t *remote_addr,
+ bt_property_type_t type);
+
+ /** Set Remote Device property of 'type' */
+ int (*set_remote_device_property)(bt_bdaddr_t *remote_addr,
+ const bt_property_t *property);
+
+ /** Get Remote Device's service record for the given UUID */
+ int (*get_remote_service_record)(bt_bdaddr_t *remote_addr,
+ bt_uuid_t *uuid);
+
+ /** Start SDP to get remote services */
+ int (*get_remote_services)(bt_bdaddr_t *remote_addr);
+
+ /** Start Discovery */
+ int (*start_discovery)(void);
+
+ /** Cancel Discovery */
+ int (*cancel_discovery)(void);
+
+ /** Create Bluetooth Bonding */
+ int (*create_bond)(const bt_bdaddr_t *bd_addr, int transport);
+
+ /** Create Bluetooth Bond using out of band data */
+ int (*create_bond_out_of_band)(const bt_bdaddr_t *bd_addr, int transport,
+ const bt_out_of_band_data_t *oob_data);
+
+ /** Remove Bond */
+ int (*remove_bond)(const bt_bdaddr_t *bd_addr);
+
+ /** Cancel Bond */
+ int (*cancel_bond)(const bt_bdaddr_t *bd_addr);
+
+ /**
+ * Get the connection status for a given remote device.
+ * return value of 0 means the device is not connected,
+ * non-zero return status indicates an active connection.
+ */
+ int (*get_connection_state)(const bt_bdaddr_t *bd_addr);
+
+ /** BT Legacy PinKey Reply */
+ /** If accept==FALSE, then pin_len and pin_code shall be 0x0 */
+ int (*pin_reply)(const bt_bdaddr_t *bd_addr, uint8_t accept,
+ uint8_t pin_len, bt_pin_code_t *pin_code);
+
+ /** BT SSP Reply - Just Works, Numeric Comparison and Passkey
+ * passkey shall be zero for BT_SSP_VARIANT_PASSKEY_COMPARISON &
+ * BT_SSP_VARIANT_CONSENT
+ * For BT_SSP_VARIANT_PASSKEY_ENTRY, if accept==FALSE, then passkey
+ * shall be zero */
+ int (*ssp_reply)(const bt_bdaddr_t *bd_addr, bt_ssp_variant_t variant,
+ uint8_t accept, uint32_t passkey);
+
+ /** Get Bluetooth profile interface */
+ const void* (*get_profile_interface) (const char *profile_id);
+
+ /** Bluetooth Test Mode APIs - Bluetooth must be enabled for these APIs */
+ /* Configure DUT Mode - Use this mode to enter/exit DUT mode */
+ int (*dut_mode_configure)(uint8_t enable);
+
+ /* Send any test HCI (vendor-specific) command to the controller. Must be in DUT Mode */
+ int (*dut_mode_send)(uint16_t opcode, uint8_t *buf, uint8_t len);
+ /** BLE Test Mode APIs */
+ /* opcode MUST be one of: LE_Receiver_Test, LE_Transmitter_Test, LE_Test_End */
+ int (*le_test_mode)(uint16_t opcode, uint8_t *buf, uint8_t len);
+
+ /* enable or disable bluetooth HCI snoop log */
+ int (*config_hci_snoop_log)(uint8_t enable);
+
+ /** Sets the OS call-out functions that bluedroid needs for alarms and wake locks.
+ * This should be called immediately after a successful |init|.
+ */
+ int (*set_os_callouts)(bt_os_callouts_t *callouts);
+
+ /** Read Energy info details - return value indicates BT_STATUS_SUCCESS or BT_STATUS_NOT_READY
+ * Success indicates that the VSC command was sent to controller
+ */
+ int (*read_energy_info)();
+
+ /**
+ * Native support for dumpsys function
+ * Function is synchronous and |fd| is owned by caller.
+ * |arguments| are arguments which may affect the output, encoded as
+ * UTF-8 strings.
+ */
+ void (*dump)(int fd, const char **arguments);
+
+ /**
+ * Clear /data/misc/bt_config.conf and erase all stored connections
+ */
+ int (*config_clear)(void);
+
+ /**
+ * Clear (reset) the dynamic portion of the device interoperability database.
+ */
+ void (*interop_database_clear)(void);
+
+ /**
+ * Add a new device interoperability workaround for a remote device whose
+ * first |len| bytes of the its device address match |addr|.
+ * NOTE: |feature| has to match an item defined in interop_feature_t (interop.h).
+ */
+ void (*interop_database_add)(uint16_t feature, const bt_bdaddr_t *addr, size_t len);
+} bt_interface_t;
+
+/** TODO: Need to add APIs for Service Discovery, Service authorization and
+ * connection management. Also need to add APIs for configuring
+ * properties of remote bonded devices such as name, UUID etc. */
+
+typedef struct {
+ struct hw_device_t common;
+ const bt_interface_t* (*get_bluetooth_interface)();
+} bluetooth_device_t;
+
+typedef bluetooth_device_t bluetooth_module_t;
+
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BLUETOOTH_H */
diff --git a/libhardware/include/hardware/boot_control.h b/libhardware/include/hardware/boot_control.h
new file mode 100644
index 0000000..36a867d
--- /dev/null
+++ b/libhardware/include/hardware/boot_control.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_BOOT_CONTROL_H
+#define ANDROID_INCLUDE_HARDWARE_BOOT_CONTROL_H
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define BOOT_CONTROL_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+
+/**
+ * The id of this module
+ */
+#define BOOT_CONTROL_HARDWARE_MODULE_ID "bootctrl"
+
+/*
+ * The Boot Control HAL is designed to allow for managing sets of redundant
+ * partitions, called slots, that can be booted from independantly. Slots
+ * are sets of partitions whose names differ only by a given suffix.
+ * They are identified here by a 0 indexed number, and associated with their
+ * suffix, which can be appended to the base name for any particular partition
+ * to find the one associated with that slot. The bootloader must pass the suffix
+ * of the currently active slot either through a kernel command line property at
+ * androidboot.slot_suffix, or the device tree at /firmware/android/slot_suffix.
+ * The primary use of this set up is to allow for background updates while the
+ * device is running, and to provide a fallback in the event that the update fails.
+ */
+
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+typedef struct boot_control_module {
+ struct hw_module_t common;
+
+ /*
+ * (*init)() perform any initialization tasks needed for the HAL.
+ * This is called only once.
+ */
+ void (*init)(struct boot_control_module *module);
+
+ /*
+ * (*getNumberSlots)() returns the number of available slots.
+ * For instance, a system with a single set of partitions would return
+ * 1, a system with A/B would return 2, A/B/C -> 3...
+ */
+ unsigned (*getNumberSlots)(struct boot_control_module *module);
+
+ /*
+ * (*getCurrentSlot)() returns the value letting the system know
+ * whether the current slot is A or B. The meaning of A and B is
+ * left up to the implementer. It is assumed that if the current slot
+ * is A, then the block devices underlying B can be accessed directly
+ * without any risk of corruption.
+ * The returned value is always guaranteed to be strictly less than the
+ * value returned by getNumberSlots. Slots start at 0 and
+ * finish at getNumberSlots() - 1
+ */
+ unsigned (*getCurrentSlot)(struct boot_control_module *module);
+
+ /*
+ * (*markBootSuccessful)() marks the current slot
+ * as having booted successfully
+ *
+ * Returns 0 on success, -errno on error.
+ */
+ int (*markBootSuccessful)(struct boot_control_module *module);
+
+ /*
+ * (*setActiveBootSlot)() marks the slot passed in parameter as
+ * the active boot slot (see getCurrentSlot for an explanation
+ * of the "slot" parameter). This overrides any previous call to
+ * setSlotAsUnbootable.
+ * Returns 0 on success, -errno on error.
+ */
+ int (*setActiveBootSlot)(struct boot_control_module *module, unsigned slot);
+
+ /*
+ * (*setSlotAsUnbootable)() marks the slot passed in parameter as
+ * an unbootable. This can be used while updating the contents of the slot's
+ * partitions, so that the system will not attempt to boot a known bad set up.
+ * Returns 0 on success, -errno on error.
+ */
+ int (*setSlotAsUnbootable)(struct boot_control_module *module, unsigned slot);
+
+ /*
+ * (*isSlotBootable)() returns if the slot passed in parameter is
+ * bootable. Note that slots can be made unbootable by both the
+ * bootloader and by the OS using setSlotAsUnbootable.
+ * Returns 1 if the slot is bootable, 0 if it's not, and -errno on
+ * error.
+ */
+ int (*isSlotBootable)(struct boot_control_module *module, unsigned slot);
+
+ /*
+ * (*getSuffix)() returns the string suffix used by partitions that
+ * correspond to the slot number passed in parameter. The returned string
+ * is expected to be statically allocated and not need to be freed.
+ * Returns NULL if slot does not match an existing slot.
+ */
+ const char* (*getSuffix)(struct boot_control_module *module, unsigned slot);
+
+ /*
+ * (*isSlotMarkedSucessful)() returns if the slot passed in parameter has
+ * been marked as successful using markBootSuccessful.
+ * Returns 1 if the slot has been marked as successful, 0 if it's
+ * not the case, and -errno on error.
+ */
+ int (*isSlotMarkedSuccessful)(struct boot_control_module *module, unsigned slot);
+
+ void* reserved[31];
+} boot_control_module_t;
+
+
+__END_DECLS
+
+#endif // ANDROID_INCLUDE_HARDWARE_BOOT_CONTROL_H
diff --git a/libhardware/include/hardware/bt_av.h b/libhardware/include/hardware/bt_av.h
new file mode 100644
index 0000000..9b32216
--- /dev/null
+++ b/libhardware/include/hardware/bt_av.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_AV_H
+#define ANDROID_INCLUDE_BT_AV_H
+
+__BEGIN_DECLS
+
+/* Bluetooth AV connection states */
+typedef enum {
+ BTAV_CONNECTION_STATE_DISCONNECTED = 0,
+ BTAV_CONNECTION_STATE_CONNECTING,
+ BTAV_CONNECTION_STATE_CONNECTED,
+ BTAV_CONNECTION_STATE_DISCONNECTING
+} btav_connection_state_t;
+
+/* Bluetooth AV datapath states */
+typedef enum {
+ BTAV_AUDIO_STATE_REMOTE_SUSPEND = 0,
+ BTAV_AUDIO_STATE_STOPPED,
+ BTAV_AUDIO_STATE_STARTED,
+} btav_audio_state_t;
+
+
+/** Callback for connection state change.
+ * state will have one of the values from btav_connection_state_t
+ */
+typedef void (* btav_connection_state_callback)(btav_connection_state_t state,
+ bt_bdaddr_t *bd_addr);
+
+/** Callback for audiopath state change.
+ * state will have one of the values from btav_audio_state_t
+ */
+typedef void (* btav_audio_state_callback)(btav_audio_state_t state,
+ bt_bdaddr_t *bd_addr);
+
+/** Callback for audio configuration change.
+ * Used only for the A2DP sink interface.
+ * state will have one of the values from btav_audio_state_t
+ * sample_rate: sample rate in Hz
+ * channel_count: number of channels (1 for mono, 2 for stereo)
+ */
+typedef void (* btav_audio_config_callback)(bt_bdaddr_t *bd_addr,
+ uint32_t sample_rate,
+ uint8_t channel_count);
+
+/** BT-AV callback structure. */
+typedef struct {
+ /** set to sizeof(btav_callbacks_t) */
+ size_t size;
+ btav_connection_state_callback connection_state_cb;
+ btav_audio_state_callback audio_state_cb;
+ btav_audio_config_callback audio_config_cb;
+} btav_callbacks_t;
+
+/**
+ * NOTE:
+ *
+ * 1. AVRCP 1.0 shall be supported initially. AVRCP passthrough commands
+ * shall be handled internally via uinput
+ *
+ * 2. A2DP data path shall be handled via a socket pipe between the AudioFlinger
+ * android_audio_hw library and the Bluetooth stack.
+ *
+ */
+/** Represents the standard BT-AV interface.
+ * Used for both the A2DP source and sink interfaces.
+ */
+typedef struct {
+
+ /** set to sizeof(btav_interface_t) */
+ size_t size;
+ /**
+ * Register the BtAv callbacks
+ */
+ bt_status_t (*init)( btav_callbacks_t* callbacks );
+
+ /** connect to headset */
+ bt_status_t (*connect)( bt_bdaddr_t *bd_addr );
+
+ /** dis-connect from headset */
+ bt_status_t (*disconnect)( bt_bdaddr_t *bd_addr );
+
+ /** Closes the interface. */
+ void (*cleanup)( void );
+
+ /** Sends Audio Focus State. */
+ void (*set_audio_focus_state)( int focus_state );
+
+ /** Sets the audio track gain. */
+ void (*set_audio_track_gain)( float gain );
+} btav_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_AV_H */
diff --git a/libhardware/include/hardware/bt_common_types.h b/libhardware/include/hardware/bt_common_types.h
new file mode 100644
index 0000000..1e6be6b
--- /dev/null
+++ b/libhardware/include/hardware/bt_common_types.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/******************************************************************************
+ *
+ * This file contains constants and definitions that can be used commonly between JNI and stack layer
+ *
+ ******************************************************************************/
+#ifndef ANDROID_INCLUDE_BT_COMMON_TYPES_H
+#define ANDROID_INCLUDE_BT_COMMON_TYPES_H
+
+#include "bluetooth.h"
+
+typedef struct
+{
+ uint8_t client_if;
+ uint8_t filt_index;
+ uint8_t advertiser_state;
+ uint8_t advertiser_info_present;
+ uint8_t addr_type;
+ uint8_t tx_power;
+ int8_t rssi_value;
+ uint16_t time_stamp;
+ bt_bdaddr_t bd_addr;
+ uint8_t adv_pkt_len;
+ uint8_t *p_adv_pkt_data;
+ uint8_t scan_rsp_len;
+ uint8_t *p_scan_rsp_data;
+} btgatt_track_adv_info_t;
+
+typedef enum
+{
+ BTGATT_DB_PRIMARY_SERVICE,
+ BTGATT_DB_SECONDARY_SERVICE,
+ BTGATT_DB_INCLUDED_SERVICE,
+ BTGATT_DB_CHARACTERISTIC,
+ BTGATT_DB_DESCRIPTOR,
+} bt_gatt_db_attribute_type_t;
+
+typedef struct
+{
+ uint16_t id;
+ bt_uuid_t uuid;
+ bt_gatt_db_attribute_type_t type;
+ uint16_t attribute_handle;
+
+ /*
+ * If |type| is |BTGATT_DB_PRIMARY_SERVICE|, or
+ * |BTGATT_DB_SECONDARY_SERVICE|, this contains the start and end attribute
+ * handles.
+ */
+ uint16_t start_handle;
+ uint16_t end_handle;
+
+ /*
+ * If |type| is |BTGATT_DB_CHARACTERISTIC|, this contains the properties of
+ * the characteristic.
+ */
+ uint8_t properties;
+ uint16_t permissions;
+} btgatt_db_element_t;
+
+#endif /* ANDROID_INCLUDE_BT_COMMON_TYPES_H */
diff --git a/libhardware/include/hardware/bt_gatt.h b/libhardware/include/hardware/bt_gatt.h
new file mode 100644
index 0000000..414d3e4
--- /dev/null
+++ b/libhardware/include/hardware/bt_gatt.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_INCLUDE_BT_GATT_H
+#define ANDROID_INCLUDE_BT_GATT_H
+
+#include <stdint.h>
+#include "ble_advertiser.h"
+#include "ble_scanner.h"
+#include "bt_gatt_client.h"
+#include "bt_gatt_server.h"
+
+__BEGIN_DECLS
+
+/** BT-GATT callbacks */
+typedef struct {
+ /** Set to sizeof(btgatt_callbacks_t) */
+ size_t size;
+
+ /** GATT Client callbacks */
+ const btgatt_client_callbacks_t* client;
+
+ /** GATT Server callbacks */
+ const btgatt_server_callbacks_t* server;
+
+ /** LE scanner callbacks */
+ const btgatt_scanner_callbacks_t* scanner;
+} btgatt_callbacks_t;
+
+/** Represents the standard Bluetooth GATT interface. */
+typedef struct {
+ /** Set to sizeof(btgatt_interface_t) */
+ size_t size;
+
+ /**
+ * Initializes the interface and provides callback routines
+ */
+ bt_status_t (*init)( const btgatt_callbacks_t* callbacks );
+
+ /** Closes the interface */
+ void (*cleanup)( void );
+
+ /** Pointer to the GATT client interface methods.*/
+ const btgatt_client_interface_t* client;
+
+ /** Pointer to the GATT server interface methods.*/
+ const btgatt_server_interface_t* server;
+
+ /** Pointer to the LE scanner interface methods.*/
+ const btgatt_scanner_interface_t* scanner;
+
+ /** Pointer to the advertiser interface methods.*/
+ BleAdvertiserInterface* advertiser;
+} btgatt_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_GATT_H */
diff --git a/libhardware/include/hardware/bt_gatt_client.h b/libhardware/include/hardware/bt_gatt_client.h
new file mode 100644
index 0000000..6c5a85e
--- /dev/null
+++ b/libhardware/include/hardware/bt_gatt_client.h
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_INCLUDE_BT_GATT_CLIENT_H
+#define ANDROID_INCLUDE_BT_GATT_CLIENT_H
+
+#include <stdint.h>
+#include <vector>
+#include "bt_gatt_types.h"
+#include "bt_common_types.h"
+
+using std::vector;
+
+__BEGIN_DECLS
+
+/**
+ * Buffer sizes for maximum attribute length and maximum read/write
+ * operation buffer size.
+ */
+#define BTGATT_MAX_ATTR_LEN 600
+
+/** Buffer type for unformatted reads/writes */
+typedef struct
+{
+ uint8_t value[BTGATT_MAX_ATTR_LEN];
+ uint16_t len;
+} btgatt_unformatted_value_t;
+
+/** Parameters for GATT read operations */
+typedef struct
+{
+ uint16_t handle;
+ btgatt_unformatted_value_t value;
+ uint16_t value_type;
+ uint8_t status;
+} btgatt_read_params_t;
+
+/** Parameters for GATT write operations */
+typedef struct
+{
+ btgatt_srvc_id_t srvc_id;
+ btgatt_gatt_id_t char_id;
+ btgatt_gatt_id_t descr_id;
+ uint8_t status;
+} btgatt_write_params_t;
+
+/** Attribute change notification parameters */
+typedef struct
+{
+ uint8_t value[BTGATT_MAX_ATTR_LEN];
+ bt_bdaddr_t bda;
+ uint16_t handle;
+ uint16_t len;
+ uint8_t is_notify;
+} btgatt_notify_params_t;
+
+typedef struct
+{
+ uint8_t client_if;
+ uint8_t action;
+ uint8_t filt_index;
+ uint16_t feat_seln;
+ uint16_t list_logic_type;
+ uint8_t filt_logic_type;
+ uint8_t rssi_high_thres;
+ uint8_t rssi_low_thres;
+ uint8_t dely_mode;
+ uint16_t found_timeout;
+ uint16_t lost_timeout;
+ uint8_t found_timeout_cnt;
+ uint16_t num_of_tracking_entries;
+} btgatt_filt_param_setup_t;
+
+typedef struct
+{
+ bt_bdaddr_t *bda1;
+ bt_uuid_t *uuid1;
+ uint16_t u1;
+ uint16_t u2;
+ uint16_t u3;
+ uint16_t u4;
+ uint16_t u5;
+} btgatt_test_params_t;
+
+/* BT GATT client error codes */
+typedef enum
+{
+ BT_GATTC_COMMAND_SUCCESS = 0, /* 0 Command succeeded */
+ BT_GATTC_COMMAND_STARTED, /* 1 Command started OK. */
+ BT_GATTC_COMMAND_BUSY, /* 2 Device busy with another command */
+ BT_GATTC_COMMAND_STORED, /* 3 request is stored in control block */
+ BT_GATTC_NO_RESOURCES, /* 4 No resources to issue command */
+ BT_GATTC_MODE_UNSUPPORTED, /* 5 Request for 1 or more unsupported modes */
+ BT_GATTC_ILLEGAL_VALUE, /* 6 Illegal command /parameter value */
+ BT_GATTC_INCORRECT_STATE, /* 7 Device in wrong state for request */
+ BT_GATTC_UNKNOWN_ADDR, /* 8 Unknown remote BD address */
+ BT_GATTC_DEVICE_TIMEOUT, /* 9 Device timeout */
+ BT_GATTC_INVALID_CONTROLLER_OUTPUT,/* 10 An incorrect value was received from HCI */
+ BT_GATTC_SECURITY_ERROR, /* 11 Authorization or security failure or not authorized */
+ BT_GATTC_DELAYED_ENCRYPTION_CHECK, /*12 Delayed encryption check */
+ BT_GATTC_ERR_PROCESSING /* 12 Generic error */
+} btgattc_error_t;
+
+/** BT-GATT Client callback structure. */
+
+/** Callback invoked in response to register_client */
+typedef void (*register_client_callback)(int status, int client_if,
+ bt_uuid_t *app_uuid);
+
+/** GATT open callback invoked in response to open */
+typedef void (*connect_callback)(int conn_id, int status, int client_if, bt_bdaddr_t* bda);
+
+/** Callback invoked in response to close */
+typedef void (*disconnect_callback)(int conn_id, int status,
+ int client_if, bt_bdaddr_t* bda);
+
+/**
+ * Invoked in response to search_service when the GATT service search
+ * has been completed.
+ */
+typedef void (*search_complete_callback)(int conn_id, int status);
+
+/** Callback invoked in response to [de]register_for_notification */
+typedef void (*register_for_notification_callback)(int conn_id,
+ int registered, int status, uint16_t handle);
+
+/**
+ * Remote device notification callback, invoked when a remote device sends
+ * a notification or indication that a client has registered for.
+ */
+typedef void (*notify_callback)(int conn_id, btgatt_notify_params_t *p_data);
+
+/** Reports result of a GATT read operation */
+typedef void (*read_characteristic_callback)(int conn_id, int status,
+ btgatt_read_params_t *p_data);
+
+/** GATT write characteristic operation callback */
+typedef void (*write_characteristic_callback)(int conn_id, int status, uint16_t handle);
+
+/** GATT execute prepared write callback */
+typedef void (*execute_write_callback)(int conn_id, int status);
+
+/** Callback invoked in response to read_descriptor */
+typedef void (*read_descriptor_callback)(int conn_id, int status,
+ btgatt_read_params_t *p_data);
+
+/** Callback invoked in response to write_descriptor */
+typedef void (*write_descriptor_callback)(int conn_id, int status, uint16_t handle);
+
+/** Callback triggered in response to read_remote_rssi */
+typedef void (*read_remote_rssi_callback)(int client_if, bt_bdaddr_t* bda,
+ int rssi, int status);
+
+/** Callback invoked when the MTU for a given connection changes */
+typedef void (*configure_mtu_callback)(int conn_id, int status, int mtu);
+
+
+/**
+ * Callback notifying an application that a remote device connection is currently congested
+ * and cannot receive any more data. An application should avoid sending more data until
+ * a further callback is received indicating the congestion status has been cleared.
+ */
+typedef void (*congestion_callback)(int conn_id, bool congested);
+
+/** GATT get database callback */
+typedef void (*get_gatt_db_callback)(int conn_id, btgatt_db_element_t *db, int count);
+
+/** GATT services between start_handle and end_handle were removed */
+typedef void (*services_removed_callback)(int conn_id, uint16_t start_handle, uint16_t end_handle);
+
+/** GATT services were added */
+typedef void (*services_added_callback)(int conn_id, btgatt_db_element_t *added, int added_count);
+
+typedef struct {
+ register_client_callback register_client_cb;
+ connect_callback open_cb;
+ disconnect_callback close_cb;
+ search_complete_callback search_complete_cb;
+ register_for_notification_callback register_for_notification_cb;
+ notify_callback notify_cb;
+ read_characteristic_callback read_characteristic_cb;
+ write_characteristic_callback write_characteristic_cb;
+ read_descriptor_callback read_descriptor_cb;
+ write_descriptor_callback write_descriptor_cb;
+ execute_write_callback execute_write_cb;
+ read_remote_rssi_callback read_remote_rssi_cb;
+ configure_mtu_callback configure_mtu_cb;
+ congestion_callback congestion_cb;
+ get_gatt_db_callback get_gatt_db_cb;
+ services_removed_callback services_removed_cb;
+ services_added_callback services_added_cb;
+} btgatt_client_callbacks_t;
+
+/** Represents the standard BT-GATT client interface. */
+
+typedef struct {
+ /** Registers a GATT client application with the stack */
+ bt_status_t (*register_client)( bt_uuid_t *uuid );
+
+ /** Unregister a client application from the stack */
+ bt_status_t (*unregister_client)(int client_if );
+
+ /** Create a connection to a remote LE or dual-mode device */
+ bt_status_t (*connect)( int client_if, const bt_bdaddr_t *bd_addr,
+ bool is_direct, int transport );
+
+ /** Disconnect a remote device or cancel a pending connection */
+ bt_status_t (*disconnect)( int client_if, const bt_bdaddr_t *bd_addr,
+ int conn_id);
+
+ /** Clear the attribute cache for a given device */
+ bt_status_t (*refresh)( int client_if, const bt_bdaddr_t *bd_addr );
+
+ /**
+ * Enumerate all GATT services on a connected device.
+ * Optionally, the results can be filtered for a given UUID.
+ */
+ bt_status_t (*search_service)(int conn_id, bt_uuid_t *filter_uuid );
+
+ /** Read a characteristic on a remote device */
+ bt_status_t (*read_characteristic)( int conn_id, uint16_t handle,
+ int auth_req );
+
+ /** Write a remote characteristic */
+ bt_status_t (*write_characteristic)(int conn_id, uint16_t handle,
+ int write_type, int auth_req,
+ vector<uint8_t> value);
+
+ /** Read the descriptor for a given characteristic */
+ bt_status_t (*read_descriptor)(int conn_id, uint16_t handle, int auth_req);
+
+ /** Write a remote descriptor for a given characteristic */
+ bt_status_t (*write_descriptor)( int conn_id, uint16_t handle,
+ int auth_req, vector<uint8_t> value);
+
+ /** Execute a prepared write operation */
+ bt_status_t (*execute_write)(int conn_id, int execute);
+
+ /**
+ * Register to receive notifications or indications for a given
+ * characteristic
+ */
+ bt_status_t (*register_for_notification)( int client_if,
+ const bt_bdaddr_t *bd_addr, uint16_t handle);
+
+ /** Deregister a previous request for notifications/indications */
+ bt_status_t (*deregister_for_notification)( int client_if,
+ const bt_bdaddr_t *bd_addr, uint16_t handle);
+
+ /** Request RSSI for a given remote device */
+ bt_status_t (*read_remote_rssi)( int client_if, const bt_bdaddr_t *bd_addr);
+
+ /** Determine the type of the remote device (LE, BR/EDR, Dual-mode) */
+ int (*get_device_type)( const bt_bdaddr_t *bd_addr );
+
+ /** Configure the MTU for a given connection */
+ bt_status_t (*configure_mtu)(int conn_id, int mtu);
+
+ /** Request a connection parameter update */
+ bt_status_t (*conn_parameter_update)(const bt_bdaddr_t *bd_addr, int min_interval,
+ int max_interval, int latency, int timeout);
+
+ /** Test mode interface */
+ bt_status_t (*test_command)( int command, btgatt_test_params_t* params);
+
+ /** Get gatt db content */
+ bt_status_t (*get_gatt_db)( int conn_id);
+
+} btgatt_client_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */
diff --git a/libhardware/include/hardware/bt_gatt_server.h b/libhardware/include/hardware/bt_gatt_server.h
new file mode 100644
index 0000000..92af285
--- /dev/null
+++ b/libhardware/include/hardware/bt_gatt_server.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_INCLUDE_BT_GATT_SERVER_H
+#define ANDROID_INCLUDE_BT_GATT_SERVER_H
+
+#include <stdint.h>
+#include <vector>
+
+#include "bt_gatt_types.h"
+
+using std::vector;
+
+__BEGIN_DECLS
+
+/** GATT value type used in response to remote read requests */
+typedef struct
+{
+ uint8_t value[BTGATT_MAX_ATTR_LEN];
+ uint16_t handle;
+ uint16_t offset;
+ uint16_t len;
+ uint8_t auth_req;
+} btgatt_value_t;
+
+/** GATT remote read request response type */
+typedef union
+{
+ btgatt_value_t attr_value;
+ uint16_t handle;
+} btgatt_response_t;
+
+/** BT-GATT Server callback structure. */
+
+/** Callback invoked in response to register_server */
+typedef void (*register_server_callback)(int status, int server_if,
+ bt_uuid_t *app_uuid);
+
+/** Callback indicating that a remote device has connected or been disconnected */
+typedef void (*connection_callback)(int conn_id, int server_if, int connected,
+ bt_bdaddr_t *bda);
+
+/** Callback invoked in response to create_service */
+typedef void (*service_added_callback)(int status, int server_if,
+ vector<btgatt_db_element_t> service);
+
+/** Callback invoked in response to stop_service */
+typedef void (*service_stopped_callback)(int status, int server_if,
+ int srvc_handle);
+
+/** Callback triggered when a service has been deleted */
+typedef void (*service_deleted_callback)(int status, int server_if,
+ int srvc_handle);
+
+/**
+ * Callback invoked when a remote device has requested to read a characteristic
+ * or descriptor. The application must respond by calling send_response
+ */
+typedef void (*request_read_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda,
+ int attr_handle, int offset, bool is_long);
+
+/**
+ * Callback invoked when a remote device has requested to write to a
+ * characteristic or descriptor.
+ */
+typedef void (*request_write_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda,
+ int attr_handle, int offset, bool need_rsp,
+ bool is_prep, vector<uint8_t> value);
+
+/** Callback invoked when a previously prepared write is to be executed */
+typedef void (*request_exec_write_callback)(int conn_id, int trans_id,
+ bt_bdaddr_t *bda, int exec_write);
+
+/**
+ * Callback triggered in response to send_response if the remote device
+ * sends a confirmation.
+ */
+typedef void (*response_confirmation_callback)(int status, int handle);
+
+/**
+ * Callback confirming that a notification or indication has been sent
+ * to a remote device.
+ */
+typedef void (*indication_sent_callback)(int conn_id, int status);
+
+/**
+ * Callback notifying an application that a remote device connection is currently congested
+ * and cannot receive any more data. An application should avoid sending more data until
+ * a further callback is received indicating the congestion status has been cleared.
+ */
+typedef void (*congestion_callback)(int conn_id, bool congested);
+
+/** Callback invoked when the MTU for a given connection changes */
+typedef void (*mtu_changed_callback)(int conn_id, int mtu);
+
+typedef struct {
+ register_server_callback register_server_cb;
+ connection_callback connection_cb;
+ service_added_callback service_added_cb;
+ service_stopped_callback service_stopped_cb;
+ service_deleted_callback service_deleted_cb;
+ request_read_callback request_read_characteristic_cb;
+ request_read_callback request_read_descriptor_cb;
+ request_write_callback request_write_characteristic_cb;
+ request_write_callback request_write_descriptor_cb;
+ request_exec_write_callback request_exec_write_cb;
+ response_confirmation_callback response_confirmation_cb;
+ indication_sent_callback indication_sent_cb;
+ congestion_callback congestion_cb;
+ mtu_changed_callback mtu_changed_cb;
+} btgatt_server_callbacks_t;
+
+/** Represents the standard BT-GATT server interface. */
+typedef struct {
+ /** Registers a GATT server application with the stack */
+ bt_status_t (*register_server)( bt_uuid_t *uuid );
+
+ /** Unregister a server application from the stack */
+ bt_status_t (*unregister_server)(int server_if );
+
+ /** Create a connection to a remote peripheral */
+ bt_status_t (*connect)(int server_if, const bt_bdaddr_t *bd_addr,
+ bool is_direct, int transport);
+
+ /** Disconnect an established connection or cancel a pending one */
+ bt_status_t (*disconnect)(int server_if, const bt_bdaddr_t *bd_addr,
+ int conn_id );
+
+ /** Create a new service */
+ bt_status_t (*add_service)(int server_if, vector<btgatt_db_element_t> service);
+
+ /** Stops a local service */
+ bt_status_t (*stop_service)(int server_if, int service_handle);
+
+ /** Delete a local service */
+ bt_status_t (*delete_service)(int server_if, int service_handle);
+
+ /** Send value indication to a remote device */
+ bt_status_t (*send_indication)(int server_if, int attribute_handle,
+ int conn_id, int confirm,
+ vector<uint8_t> value);
+
+ /** Send a response to a read/write operation */
+ bt_status_t (*send_response)(int conn_id, int trans_id,
+ int status, btgatt_response_t *response);
+
+} btgatt_server_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */
diff --git a/libhardware/include/hardware/bt_gatt_types.h b/libhardware/include/hardware/bt_gatt_types.h
new file mode 100644
index 0000000..e037ddc
--- /dev/null
+++ b/libhardware/include/hardware/bt_gatt_types.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_INCLUDE_BT_GATT_TYPES_H
+#define ANDROID_INCLUDE_BT_GATT_TYPES_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+__BEGIN_DECLS
+
+/**
+ * GATT Service types
+ */
+#define BTGATT_SERVICE_TYPE_PRIMARY 0
+#define BTGATT_SERVICE_TYPE_SECONDARY 1
+
+/** GATT ID adding instance id tracking to the UUID */
+typedef struct
+{
+ bt_uuid_t uuid;
+ uint8_t inst_id;
+} btgatt_gatt_id_t;
+
+/** GATT Service ID also identifies the service type (primary/secondary) */
+typedef struct
+{
+ btgatt_gatt_id_t id;
+ uint8_t is_primary;
+} btgatt_srvc_id_t;
+
+/** Preferred physical Transport for GATT connection */
+typedef enum
+{
+ GATT_TRANSPORT_AUTO,
+ GATT_TRANSPORT_BREDR,
+ GATT_TRANSPORT_LE
+} btgatt_transport_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_GATT_TYPES_H */
diff --git a/libhardware/include/hardware/bt_hf.h b/libhardware/include/hardware/bt_hf.h
new file mode 100644
index 0000000..0a77675
--- /dev/null
+++ b/libhardware/include/hardware/bt_hf.h
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_HF_H
+#define ANDROID_INCLUDE_BT_HF_H
+
+__BEGIN_DECLS
+
+/* AT response code - OK/Error */
+typedef enum {
+ BTHF_AT_RESPONSE_ERROR = 0,
+ BTHF_AT_RESPONSE_OK
+} bthf_at_response_t;
+
+typedef enum {
+ BTHF_CONNECTION_STATE_DISCONNECTED = 0,
+ BTHF_CONNECTION_STATE_CONNECTING,
+ BTHF_CONNECTION_STATE_CONNECTED,
+ BTHF_CONNECTION_STATE_SLC_CONNECTED,
+ BTHF_CONNECTION_STATE_DISCONNECTING
+} bthf_connection_state_t;
+
+typedef enum {
+ BTHF_AUDIO_STATE_DISCONNECTED = 0,
+ BTHF_AUDIO_STATE_CONNECTING,
+ BTHF_AUDIO_STATE_CONNECTED,
+ BTHF_AUDIO_STATE_DISCONNECTING
+} bthf_audio_state_t;
+
+typedef enum {
+ BTHF_VR_STATE_STOPPED = 0,
+ BTHF_VR_STATE_STARTED
+} bthf_vr_state_t;
+
+typedef enum {
+ BTHF_VOLUME_TYPE_SPK = 0,
+ BTHF_VOLUME_TYPE_MIC
+} bthf_volume_type_t;
+
+/* Noise Reduction and Echo Cancellation */
+typedef enum
+{
+ BTHF_NREC_STOP,
+ BTHF_NREC_START
+} bthf_nrec_t;
+
+/* WBS codec setting */
+typedef enum
+{
+ BTHF_WBS_NONE,
+ BTHF_WBS_NO,
+ BTHF_WBS_YES
+}bthf_wbs_config_t;
+
+/* CHLD - Call held handling */
+typedef enum
+{
+ BTHF_CHLD_TYPE_RELEASEHELD, // Terminate all held or set UDUB("busy") to a waiting call
+ BTHF_CHLD_TYPE_RELEASEACTIVE_ACCEPTHELD, // Terminate all active calls and accepts a waiting/held call
+ BTHF_CHLD_TYPE_HOLDACTIVE_ACCEPTHELD, // Hold all active calls and accepts a waiting/held call
+ BTHF_CHLD_TYPE_ADDHELDTOCONF, // Add all held calls to a conference
+} bthf_chld_type_t;
+
+
+/* HF Indicators HFP 1.7 */
+typedef enum
+{
+ BTHF_HF_IND_ENHANCED_DRIVER_SAFETY = 1,
+ BTHF_HF_IND_BATTERY_LEVEL_STATUS = 2,
+} bthf_hf_ind_type_t;
+
+typedef enum
+{
+ BTHF_HF_IND_DISABLED = 0,
+ BTHF_HF_IND_ENABLED,
+} bthf_hf_ind_status_t;
+
+/** Callback for connection state change.
+ * state will have one of the values from BtHfConnectionState
+ */
+typedef void (* bthf_connection_state_callback)(bthf_connection_state_t state, bt_bdaddr_t *bd_addr);
+
+/** Callback for audio connection state change.
+ * state will have one of the values from BtHfAudioState
+ */
+typedef void (* bthf_audio_state_callback)(bthf_audio_state_t state, bt_bdaddr_t *bd_addr);
+
+/** Callback for VR connection state change.
+ * state will have one of the values from BtHfVRState
+ */
+typedef void (* bthf_vr_cmd_callback)(bthf_vr_state_t state, bt_bdaddr_t *bd_addr);
+
+/** Callback for answer incoming call (ATA)
+ */
+typedef void (* bthf_answer_call_cmd_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for disconnect call (AT+CHUP)
+ */
+typedef void (* bthf_hangup_call_cmd_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for disconnect call (AT+CHUP)
+ * type will denote Speaker/Mic gain (BtHfVolumeControl).
+ */
+typedef void (* bthf_volume_cmd_callback)(bthf_volume_type_t type, int volume, bt_bdaddr_t *bd_addr);
+
+/** Callback for dialing an outgoing call
+ * If number is NULL, redial
+ */
+typedef void (* bthf_dial_call_cmd_callback)(char *number, bt_bdaddr_t *bd_addr);
+
+/** Callback for sending DTMF tones
+ * tone contains the dtmf character to be sent
+ */
+typedef void (* bthf_dtmf_cmd_callback)(char tone, bt_bdaddr_t *bd_addr);
+
+/** Callback for enabling/disabling noise reduction/echo cancellation
+ * value will be 1 to enable, 0 to disable
+ */
+typedef void (* bthf_nrec_cmd_callback)(bthf_nrec_t nrec, bt_bdaddr_t *bd_addr);
+
+/** Callback for AT+BCS and event from BAC
+ * WBS enable, WBS disable
+ */
+typedef void (* bthf_wbs_callback)(bthf_wbs_config_t wbs, bt_bdaddr_t *bd_addr);
+
+/** Callback for call hold handling (AT+CHLD)
+ * value will contain the call hold command (0, 1, 2, 3)
+ */
+typedef void (* bthf_chld_cmd_callback)(bthf_chld_type_t chld, bt_bdaddr_t *bd_addr);
+
+/** Callback for CNUM (subscriber number)
+ */
+typedef void (* bthf_cnum_cmd_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for indicators (CIND)
+ */
+typedef void (* bthf_cind_cmd_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for operator selection (COPS)
+ */
+typedef void (* bthf_cops_cmd_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for call list (AT+CLCC)
+ */
+typedef void (* bthf_clcc_cmd_callback) (bt_bdaddr_t *bd_addr);
+
+/** Callback for unknown AT command recd from HF
+ * at_string will contain the unparsed AT string
+ */
+typedef void (* bthf_unknown_at_cmd_callback)(char *at_string, bt_bdaddr_t *bd_addr);
+
+/** Callback for keypressed (HSP) event.
+ */
+typedef void (* bthf_key_pressed_cmd_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for BIND. Pass the remote HF Indicators supported.
+ */
+typedef void (* bthf_bind_cmd_callback)(char *at_string, bt_bdaddr_t *bd_addr);
+
+/** Callback for BIEV. Pass the change in the Remote HF indicator values
+ */
+typedef void (* bthf_biev_cmd_callback)(bthf_hf_ind_type_t ind_id, int ind_value,
+ bt_bdaddr_t *bd_addr);
+
+/** BT-HF callback structure. */
+typedef struct {
+ /** set to sizeof(BtHfCallbacks) */
+ size_t size;
+ bthf_connection_state_callback connection_state_cb;
+ bthf_audio_state_callback audio_state_cb;
+ bthf_vr_cmd_callback vr_cmd_cb;
+ bthf_answer_call_cmd_callback answer_call_cmd_cb;
+ bthf_hangup_call_cmd_callback hangup_call_cmd_cb;
+ bthf_volume_cmd_callback volume_cmd_cb;
+ bthf_dial_call_cmd_callback dial_call_cmd_cb;
+ bthf_dtmf_cmd_callback dtmf_cmd_cb;
+ bthf_nrec_cmd_callback nrec_cmd_cb;
+ bthf_wbs_callback wbs_cb;
+ bthf_chld_cmd_callback chld_cmd_cb;
+ bthf_cnum_cmd_callback cnum_cmd_cb;
+ bthf_cind_cmd_callback cind_cmd_cb;
+ bthf_cops_cmd_callback cops_cmd_cb;
+ bthf_clcc_cmd_callback clcc_cmd_cb;
+ bthf_unknown_at_cmd_callback unknown_at_cmd_cb;
+ bthf_bind_cmd_callback bind_cb;
+ bthf_biev_cmd_callback biev_cb;
+ bthf_key_pressed_cmd_callback key_pressed_cmd_cb;
+} bthf_callbacks_t;
+
+/** Network Status */
+typedef enum
+{
+ BTHF_NETWORK_STATE_NOT_AVAILABLE = 0,
+ BTHF_NETWORK_STATE_AVAILABLE
+} bthf_network_state_t;
+
+/** Service type */
+typedef enum
+{
+ BTHF_SERVICE_TYPE_HOME = 0,
+ BTHF_SERVICE_TYPE_ROAMING
+} bthf_service_type_t;
+
+typedef enum {
+ BTHF_CALL_STATE_ACTIVE = 0,
+ BTHF_CALL_STATE_HELD,
+ BTHF_CALL_STATE_DIALING,
+ BTHF_CALL_STATE_ALERTING,
+ BTHF_CALL_STATE_INCOMING,
+ BTHF_CALL_STATE_WAITING,
+ BTHF_CALL_STATE_IDLE
+} bthf_call_state_t;
+
+typedef enum {
+ BTHF_CALL_DIRECTION_OUTGOING = 0,
+ BTHF_CALL_DIRECTION_INCOMING
+} bthf_call_direction_t;
+
+typedef enum {
+ BTHF_CALL_TYPE_VOICE = 0,
+ BTHF_CALL_TYPE_DATA,
+ BTHF_CALL_TYPE_FAX
+} bthf_call_mode_t;
+
+typedef enum {
+ BTHF_CALL_MPTY_TYPE_SINGLE = 0,
+ BTHF_CALL_MPTY_TYPE_MULTI
+} bthf_call_mpty_type_t;
+
+typedef enum {
+ BTHF_CALL_ADDRTYPE_UNKNOWN = 0x81,
+ BTHF_CALL_ADDRTYPE_INTERNATIONAL = 0x91
+} bthf_call_addrtype_t;
+/** Represents the standard BT-HF interface. */
+typedef struct {
+
+ /** set to sizeof(BtHfInterface) */
+ size_t size;
+ /**
+ * Register the BtHf callbacks
+ */
+ bt_status_t (*init)( bthf_callbacks_t* callbacks, int max_hf_clients);
+
+ /** connect to headset */
+ bt_status_t (*connect)( bt_bdaddr_t *bd_addr );
+
+ /** dis-connect from headset */
+ bt_status_t (*disconnect)( bt_bdaddr_t *bd_addr );
+
+ /** create an audio connection */
+ bt_status_t (*connect_audio)( bt_bdaddr_t *bd_addr );
+
+ /** close the audio connection */
+ bt_status_t (*disconnect_audio)( bt_bdaddr_t *bd_addr );
+
+ /** start voice recognition */
+ bt_status_t (*start_voice_recognition)( bt_bdaddr_t *bd_addr );
+
+ /** stop voice recognition */
+ bt_status_t (*stop_voice_recognition)( bt_bdaddr_t *bd_addr );
+
+ /** volume control */
+ bt_status_t (*volume_control) (bthf_volume_type_t type, int volume, bt_bdaddr_t *bd_addr );
+
+ /** Combined device status change notification */
+ bt_status_t (*device_status_notification)(bthf_network_state_t ntk_state, bthf_service_type_t svc_type, int signal,
+ int batt_chg);
+
+ /** Response for COPS command */
+ bt_status_t (*cops_response)(const char *cops, bt_bdaddr_t *bd_addr );
+
+ /** Response for CIND command */
+ bt_status_t (*cind_response)(int svc, int num_active, int num_held, bthf_call_state_t call_setup_state,
+ int signal, int roam, int batt_chg, bt_bdaddr_t *bd_addr );
+
+ /** Pre-formatted AT response, typically in response to unknown AT cmd */
+ bt_status_t (*formatted_at_response)(const char *rsp, bt_bdaddr_t *bd_addr );
+
+ /** ok/error response
+ * ERROR (0)
+ * OK (1)
+ */
+ bt_status_t (*at_response) (bthf_at_response_t response_code, int error_code, bt_bdaddr_t *bd_addr );
+
+ /** response for CLCC command
+ * Can be iteratively called for each call index
+ * Call index of 0 will be treated as NULL termination (Completes response)
+ */
+ bt_status_t (*clcc_response) (int index, bthf_call_direction_t dir,
+ bthf_call_state_t state, bthf_call_mode_t mode,
+ bthf_call_mpty_type_t mpty, const char *number,
+ bthf_call_addrtype_t type, bt_bdaddr_t *bd_addr );
+
+ /** notify of a call state change
+ * Each update notifies
+ * 1. Number of active/held/ringing calls
+ * 2. call_state: This denotes the state change that triggered this msg
+ * This will take one of the values from BtHfCallState
+ * 3. number & type: valid only for incoming & waiting call
+ */
+ bt_status_t (*phone_state_change) (int num_active, int num_held, bthf_call_state_t call_setup_state,
+ const char *number, bthf_call_addrtype_t type);
+
+ /** Closes the interface. */
+ void (*cleanup)( void );
+
+ /** configureation for the SCO codec */
+ bt_status_t (*configure_wbs)( bt_bdaddr_t *bd_addr ,bthf_wbs_config_t config );
+
+ /** Response for HF Indicator change (+BIND) */
+ bt_status_t (*bind_response)(bthf_hf_ind_type_t ind_id, bthf_hf_ind_status_t ind_status,
+ bt_bdaddr_t *bd_addr);
+} bthf_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_HF_H */
diff --git a/libhardware/include/hardware/bt_hf_client.h b/libhardware/include/hardware/bt_hf_client.h
new file mode 100644
index 0000000..8acf1b2
--- /dev/null
+++ b/libhardware/include/hardware/bt_hf_client.h
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 2012-2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_HF_CLIENT_H
+#define ANDROID_INCLUDE_BT_HF_CLIENT_H
+
+__BEGIN_DECLS
+
+typedef enum {
+ BTHF_CLIENT_CONNECTION_STATE_DISCONNECTED = 0,
+ BTHF_CLIENT_CONNECTION_STATE_CONNECTING,
+ BTHF_CLIENT_CONNECTION_STATE_CONNECTED,
+ BTHF_CLIENT_CONNECTION_STATE_SLC_CONNECTED,
+ BTHF_CLIENT_CONNECTION_STATE_DISCONNECTING
+} bthf_client_connection_state_t;
+
+typedef enum {
+ BTHF_CLIENT_AUDIO_STATE_DISCONNECTED = 0,
+ BTHF_CLIENT_AUDIO_STATE_CONNECTING,
+ BTHF_CLIENT_AUDIO_STATE_CONNECTED,
+ BTHF_CLIENT_AUDIO_STATE_CONNECTED_MSBC,
+} bthf_client_audio_state_t;
+
+typedef enum {
+ BTHF_CLIENT_VR_STATE_STOPPED = 0,
+ BTHF_CLIENT_VR_STATE_STARTED
+} bthf_client_vr_state_t;
+
+typedef enum {
+ BTHF_CLIENT_VOLUME_TYPE_SPK = 0,
+ BTHF_CLIENT_VOLUME_TYPE_MIC
+} bthf_client_volume_type_t;
+
+typedef enum
+{
+ BTHF_CLIENT_NETWORK_STATE_NOT_AVAILABLE = 0,
+ BTHF_CLIENT_NETWORK_STATE_AVAILABLE
+} bthf_client_network_state_t;
+
+typedef enum
+{
+ BTHF_CLIENT_SERVICE_TYPE_HOME = 0,
+ BTHF_CLIENT_SERVICE_TYPE_ROAMING
+} bthf_client_service_type_t;
+
+typedef enum {
+ BTHF_CLIENT_CALL_STATE_ACTIVE = 0,
+ BTHF_CLIENT_CALL_STATE_HELD,
+ BTHF_CLIENT_CALL_STATE_DIALING,
+ BTHF_CLIENT_CALL_STATE_ALERTING,
+ BTHF_CLIENT_CALL_STATE_INCOMING,
+ BTHF_CLIENT_CALL_STATE_WAITING,
+ BTHF_CLIENT_CALL_STATE_HELD_BY_RESP_HOLD,
+} bthf_client_call_state_t;
+
+typedef enum {
+ BTHF_CLIENT_CALL_NO_CALLS_IN_PROGRESS = 0,
+ BTHF_CLIENT_CALL_CALLS_IN_PROGRESS
+} bthf_client_call_t;
+
+typedef enum {
+ BTHF_CLIENT_CALLSETUP_NONE = 0,
+ BTHF_CLIENT_CALLSETUP_INCOMING,
+ BTHF_CLIENT_CALLSETUP_OUTGOING,
+ BTHF_CLIENT_CALLSETUP_ALERTING
+
+} bthf_client_callsetup_t;
+
+typedef enum {
+ BTHF_CLIENT_CALLHELD_NONE = 0,
+ BTHF_CLIENT_CALLHELD_HOLD_AND_ACTIVE,
+ BTHF_CLIENT_CALLHELD_HOLD,
+} bthf_client_callheld_t;
+
+typedef enum {
+ BTHF_CLIENT_RESP_AND_HOLD_HELD = 0,
+ BTRH_CLIENT_RESP_AND_HOLD_ACCEPT,
+ BTRH_CLIENT_RESP_AND_HOLD_REJECT,
+} bthf_client_resp_and_hold_t;
+
+typedef enum {
+ BTHF_CLIENT_CALL_DIRECTION_OUTGOING = 0,
+ BTHF_CLIENT_CALL_DIRECTION_INCOMING
+} bthf_client_call_direction_t;
+
+typedef enum {
+ BTHF_CLIENT_CALL_MPTY_TYPE_SINGLE = 0,
+ BTHF_CLIENT_CALL_MPTY_TYPE_MULTI
+} bthf_client_call_mpty_type_t;
+
+typedef enum {
+ BTHF_CLIENT_CMD_COMPLETE_OK = 0,
+ BTHF_CLIENT_CMD_COMPLETE_ERROR,
+ BTHF_CLIENT_CMD_COMPLETE_ERROR_NO_CARRIER,
+ BTHF_CLIENT_CMD_COMPLETE_ERROR_BUSY,
+ BTHF_CLIENT_CMD_COMPLETE_ERROR_NO_ANSWER,
+ BTHF_CLIENT_CMD_COMPLETE_ERROR_DELAYED,
+ BTHF_CLIENT_CMD_COMPLETE_ERROR_BLACKLISTED,
+ BTHF_CLIENT_CMD_COMPLETE_ERROR_CME
+} bthf_client_cmd_complete_t;
+
+typedef enum {
+ BTHF_CLIENT_CALL_ACTION_CHLD_0 = 0,
+ BTHF_CLIENT_CALL_ACTION_CHLD_1,
+ BTHF_CLIENT_CALL_ACTION_CHLD_2,
+ BTHF_CLIENT_CALL_ACTION_CHLD_3,
+ BTHF_CLIENT_CALL_ACTION_CHLD_4,
+ BTHF_CLIENT_CALL_ACTION_CHLD_1x,
+ BTHF_CLIENT_CALL_ACTION_CHLD_2x,
+ BTHF_CLIENT_CALL_ACTION_ATA,
+ BTHF_CLIENT_CALL_ACTION_CHUP,
+ BTHF_CLIENT_CALL_ACTION_BTRH_0,
+ BTHF_CLIENT_CALL_ACTION_BTRH_1,
+ BTHF_CLIENT_CALL_ACTION_BTRH_2,
+} bthf_client_call_action_t;
+
+typedef enum {
+ BTHF_CLIENT_SERVICE_UNKNOWN = 0,
+ BTHF_CLIENT_SERVICE_VOICE,
+ BTHF_CLIENT_SERVICE_FAX
+} bthf_client_subscriber_service_type_t;
+
+typedef enum {
+ BTHF_CLIENT_IN_BAND_RINGTONE_NOT_PROVIDED = 0,
+ BTHF_CLIENT_IN_BAND_RINGTONE_PROVIDED,
+} bthf_client_in_band_ring_state_t;
+
+/* Peer features masks */
+#define BTHF_CLIENT_PEER_FEAT_3WAY 0x00000001 /* Three-way calling */
+#define BTHF_CLIENT_PEER_FEAT_ECNR 0x00000002 /* Echo cancellation and/or noise reduction */
+#define BTHF_CLIENT_PEER_FEAT_VREC 0x00000004 /* Voice recognition */
+#define BTHF_CLIENT_PEER_FEAT_INBAND 0x00000008 /* In-band ring tone */
+#define BTHF_CLIENT_PEER_FEAT_VTAG 0x00000010 /* Attach a phone number to a voice tag */
+#define BTHF_CLIENT_PEER_FEAT_REJECT 0x00000020 /* Ability to reject incoming call */
+#define BTHF_CLIENT_PEER_FEAT_ECS 0x00000040 /* Enhanced Call Status */
+#define BTHF_CLIENT_PEER_FEAT_ECC 0x00000080 /* Enhanced Call Control */
+#define BTHF_CLIENT_PEER_FEAT_EXTERR 0x00000100 /* Extended error codes */
+#define BTHF_CLIENT_PEER_FEAT_CODEC 0x00000200 /* Codec Negotiation */
+
+/* Peer call handling features masks */
+#define BTHF_CLIENT_CHLD_FEAT_REL 0x00000001 /* 0 Release waiting call or held calls */
+#define BTHF_CLIENT_CHLD_FEAT_REL_ACC 0x00000002 /* 1 Release active calls and accept other
+ (waiting or held) cal */
+#define BTHF_CLIENT_CHLD_FEAT_REL_X 0x00000004 /* 1x Release specified active call only */
+#define BTHF_CLIENT_CHLD_FEAT_HOLD_ACC 0x00000008 /* 2 Active calls on hold and accept other
+ (waiting or held) call */
+#define BTHF_CLIENT_CHLD_FEAT_PRIV_X 0x00000010 /* 2x Request private mode with specified
+ call (put the rest on hold) */
+#define BTHF_CLIENT_CHLD_FEAT_MERGE 0x00000020 /* 3 Add held call to multiparty */
+#define BTHF_CLIENT_CHLD_FEAT_MERGE_DETACH 0x00000040 /* 4 Connect two calls and leave
+ (disconnect from) multiparty */
+
+/** Callback for connection state change.
+ * state will have one of the values from BtHfConnectionState
+ * peer/chld_features are valid only for BTHF_CLIENT_CONNECTION_STATE_SLC_CONNECTED state
+ */
+typedef void (* bthf_client_connection_state_callback)(bthf_client_connection_state_t state,
+ unsigned int peer_feat,
+ unsigned int chld_feat,
+ bt_bdaddr_t *bd_addr);
+
+/** Callback for audio connection state change.
+ * state will have one of the values from BtHfAudioState
+ */
+typedef void (* bthf_client_audio_state_callback)(bthf_client_audio_state_t state,
+ bt_bdaddr_t *bd_addr);
+
+/** Callback for VR connection state change.
+ * state will have one of the values from BtHfVRState
+ */
+typedef void (* bthf_client_vr_cmd_callback)(bthf_client_vr_state_t state);
+
+/** Callback for network state change
+ */
+typedef void (* bthf_client_network_state_callback) (bthf_client_network_state_t state);
+
+/** Callback for network roaming status change
+ */
+typedef void (* bthf_client_network_roaming_callback) (bthf_client_service_type_t type);
+
+/** Callback for signal strength indication
+ */
+typedef void (* bthf_client_network_signal_callback) (int signal_strength);
+
+/** Callback for battery level indication
+ */
+typedef void (* bthf_client_battery_level_callback) (int battery_level);
+
+/** Callback for current operator name
+ */
+typedef void (* bthf_client_current_operator_callback) (const char *name);
+
+/** Callback for call indicator
+ */
+typedef void (* bthf_client_call_callback) (bthf_client_call_t call);
+
+/** Callback for callsetup indicator
+ */
+typedef void (* bthf_client_callsetup_callback) (bthf_client_callsetup_t callsetup);
+
+/** Callback for callheld indicator
+ */
+typedef void (* bthf_client_callheld_callback) (bthf_client_callheld_t callheld);
+
+/** Callback for response and hold
+ */
+typedef void (* bthf_client_resp_and_hold_callback) (bthf_client_resp_and_hold_t resp_and_hold);
+
+/** Callback for Calling Line Identification notification
+ * Will be called only when there is an incoming call and number is provided.
+ */
+typedef void (* bthf_client_clip_callback) (const char *number);
+
+/**
+ * Callback for Call Waiting notification
+ */
+typedef void (* bthf_client_call_waiting_callback) (const char *number);
+
+/**
+ * Callback for listing current calls. Can be called multiple time.
+ * If number is unknown NULL is passed.
+ */
+typedef void (*bthf_client_current_calls) (int index, bthf_client_call_direction_t dir,
+ bthf_client_call_state_t state,
+ bthf_client_call_mpty_type_t mpty,
+ const char *number);
+
+/** Callback for audio volume change
+ */
+typedef void (*bthf_client_volume_change_callback) (bthf_client_volume_type_t type, int volume);
+
+/** Callback for command complete event
+ * cme is valid only for BTHF_CLIENT_CMD_COMPLETE_ERROR_CME type
+ */
+typedef void (*bthf_client_cmd_complete_callback) (bthf_client_cmd_complete_t type, int cme);
+
+/** Callback for subscriber information
+ */
+typedef void (* bthf_client_subscriber_info_callback) (const char *name,
+ bthf_client_subscriber_service_type_t type);
+
+/** Callback for in-band ring tone settings
+ */
+typedef void (* bthf_client_in_band_ring_tone_callback) (bthf_client_in_band_ring_state_t state);
+
+/**
+ * Callback for requested number from AG
+ */
+typedef void (* bthf_client_last_voice_tag_number_callback) (const char *number);
+
+/**
+ * Callback for sending ring indication to app
+ */
+typedef void (* bthf_client_ring_indication_callback) (void);
+
+/** BT-HF callback structure. */
+typedef struct {
+ /** set to sizeof(BtHfClientCallbacks) */
+ size_t size;
+ bthf_client_connection_state_callback connection_state_cb;
+ bthf_client_audio_state_callback audio_state_cb;
+ bthf_client_vr_cmd_callback vr_cmd_cb;
+ bthf_client_network_state_callback network_state_cb;
+ bthf_client_network_roaming_callback network_roaming_cb;
+ bthf_client_network_signal_callback network_signal_cb;
+ bthf_client_battery_level_callback battery_level_cb;
+ bthf_client_current_operator_callback current_operator_cb;
+ bthf_client_call_callback call_cb;
+ bthf_client_callsetup_callback callsetup_cb;
+ bthf_client_callheld_callback callheld_cb;
+ bthf_client_resp_and_hold_callback resp_and_hold_cb;
+ bthf_client_clip_callback clip_cb;
+ bthf_client_call_waiting_callback call_waiting_cb;
+ bthf_client_current_calls current_calls_cb;
+ bthf_client_volume_change_callback volume_change_cb;
+ bthf_client_cmd_complete_callback cmd_complete_cb;
+ bthf_client_subscriber_info_callback subscriber_info_cb;
+ bthf_client_in_band_ring_tone_callback in_band_ring_tone_cb;
+ bthf_client_last_voice_tag_number_callback last_voice_tag_number_callback;
+ bthf_client_ring_indication_callback ring_indication_cb;
+} bthf_client_callbacks_t;
+
+/** Represents the standard BT-HF interface. */
+typedef struct {
+
+ /** set to sizeof(BtHfClientInterface) */
+ size_t size;
+ /**
+ * Register the BtHf callbacks
+ */
+ bt_status_t (*init)(bthf_client_callbacks_t* callbacks);
+
+ /** connect to audio gateway */
+ bt_status_t (*connect)(bt_bdaddr_t *bd_addr);
+
+ /** disconnect from audio gateway */
+ bt_status_t (*disconnect)(bt_bdaddr_t *bd_addr);
+
+ /** create an audio connection */
+ bt_status_t (*connect_audio)(bt_bdaddr_t *bd_addr);
+
+ /** close the audio connection */
+ bt_status_t (*disconnect_audio)(bt_bdaddr_t *bd_addr);
+
+ /** start voice recognition */
+ bt_status_t (*start_voice_recognition)(void);
+
+ /** stop voice recognition */
+ bt_status_t (*stop_voice_recognition)(void);
+
+ /** volume control */
+ bt_status_t (*volume_control) (bthf_client_volume_type_t type, int volume);
+
+ /** place a call with number a number
+ * if number is NULL last called number is called (aka re-dial)*/
+ bt_status_t (*dial) (const char *number);
+
+ /** place a call with number specified by location (speed dial) */
+ bt_status_t (*dial_memory) (int location);
+
+ /** perform specified call related action
+ * idx is limited only for enhanced call control related action
+ */
+ bt_status_t (*handle_call_action) (bthf_client_call_action_t action, int idx);
+
+ /** query list of current calls */
+ bt_status_t (*query_current_calls) (void);
+
+ /** query name of current selected operator */
+ bt_status_t (*query_current_operator_name) (void);
+
+ /** Retrieve subscriber information */
+ bt_status_t (*retrieve_subscriber_info) (void);
+
+ /** Send DTMF code*/
+ bt_status_t (*send_dtmf) (char code);
+
+ /** Request a phone number from AG corresponding to last voice tag recorded */
+ bt_status_t (*request_last_voice_tag_number) (void);
+
+ /** Closes the interface. */
+ void (*cleanup)(void);
+
+ /** Send AT Command. */
+ bt_status_t (*send_at_cmd) (int cmd, int val1, int val2, const char *arg);
+} bthf_client_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_HF_CLIENT_H */
diff --git a/libhardware/include/hardware/bt_hh.h b/libhardware/include/hardware/bt_hh.h
new file mode 100644
index 0000000..dad9586
--- /dev/null
+++ b/libhardware/include/hardware/bt_hh.h
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_HH_H
+#define ANDROID_INCLUDE_BT_HH_H
+
+#include <stdint.h>
+
+__BEGIN_DECLS
+
+#define BTHH_MAX_DSC_LEN 884
+
+/* HH connection states */
+typedef enum
+{
+ BTHH_CONN_STATE_CONNECTED = 0,
+ BTHH_CONN_STATE_CONNECTING,
+ BTHH_CONN_STATE_DISCONNECTED,
+ BTHH_CONN_STATE_DISCONNECTING,
+ BTHH_CONN_STATE_FAILED_MOUSE_FROM_HOST,
+ BTHH_CONN_STATE_FAILED_KBD_FROM_HOST,
+ BTHH_CONN_STATE_FAILED_TOO_MANY_DEVICES,
+ BTHH_CONN_STATE_FAILED_NO_BTHID_DRIVER,
+ BTHH_CONN_STATE_FAILED_GENERIC,
+ BTHH_CONN_STATE_UNKNOWN
+} bthh_connection_state_t;
+
+typedef enum
+{
+ BTHH_OK = 0,
+ BTHH_HS_HID_NOT_READY, /* handshake error : device not ready */
+ BTHH_HS_INVALID_RPT_ID, /* handshake error : invalid report ID */
+ BTHH_HS_TRANS_NOT_SPT, /* handshake error : transaction not spt */
+ BTHH_HS_INVALID_PARAM, /* handshake error : invalid paremter */
+ BTHH_HS_ERROR, /* handshake error : unspecified HS error */
+ BTHH_ERR, /* general BTA HH error */
+ BTHH_ERR_SDP, /* SDP error */
+ BTHH_ERR_PROTO, /* SET_Protocol error,
+ only used in BTA_HH_OPEN_EVT callback */
+ BTHH_ERR_DB_FULL, /* device database full error, used */
+ BTHH_ERR_TOD_UNSPT, /* type of device not supported */
+ BTHH_ERR_NO_RES, /* out of system resources */
+ BTHH_ERR_AUTH_FAILED, /* authentication fail */
+ BTHH_ERR_HDL
+}bthh_status_t;
+
+/* Protocol modes */
+typedef enum {
+ BTHH_REPORT_MODE = 0x00,
+ BTHH_BOOT_MODE = 0x01,
+ BTHH_UNSUPPORTED_MODE = 0xff
+}bthh_protocol_mode_t;
+
+/* Report types */
+typedef enum {
+ BTHH_INPUT_REPORT = 1,
+ BTHH_OUTPUT_REPORT,
+ BTHH_FEATURE_REPORT
+}bthh_report_type_t;
+
+typedef struct
+{
+ int attr_mask;
+ uint8_t sub_class;
+ uint8_t app_id;
+ int vendor_id;
+ int product_id;
+ int version;
+ uint8_t ctry_code;
+ int dl_len;
+ uint8_t dsc_list[BTHH_MAX_DSC_LEN];
+} bthh_hid_info_t;
+
+/** Callback for connection state change.
+ * state will have one of the values from bthh_connection_state_t
+ */
+typedef void (* bthh_connection_state_callback)(bt_bdaddr_t *bd_addr, bthh_connection_state_t state);
+
+/** Callback for vitual unplug api.
+ * the status of the vitual unplug
+ */
+typedef void (* bthh_virtual_unplug_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status);
+
+/** Callback for get hid info
+ * hid_info will contain attr_mask, sub_class, app_id, vendor_id, product_id, version, ctry_code, len
+ */
+typedef void (* bthh_hid_info_callback)(bt_bdaddr_t *bd_addr, bthh_hid_info_t hid_info);
+
+/** Callback for get protocol api.
+ * the protocol mode is one of the value from bthh_protocol_mode_t
+ */
+typedef void (* bthh_protocol_mode_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status, bthh_protocol_mode_t mode);
+
+/** Callback for get/set_idle_time api.
+ */
+typedef void (* bthh_idle_time_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status, int idle_rate);
+
+
+/** Callback for get report api.
+ * if staus is ok rpt_data contains the report data
+ */
+typedef void (* bthh_get_report_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status, uint8_t* rpt_data, int rpt_size);
+
+/** Callback for set_report/set_protocol api and if error
+ * occurs for get_report/get_protocol api.
+ */
+typedef void (* bthh_handshake_callback)(bt_bdaddr_t *bd_addr, bthh_status_t hh_status);
+
+
+/** BT-HH callback structure. */
+typedef struct {
+ /** set to sizeof(BtHfCallbacks) */
+ size_t size;
+ bthh_connection_state_callback connection_state_cb;
+ bthh_hid_info_callback hid_info_cb;
+ bthh_protocol_mode_callback protocol_mode_cb;
+ bthh_idle_time_callback idle_time_cb;
+ bthh_get_report_callback get_report_cb;
+ bthh_virtual_unplug_callback virtual_unplug_cb;
+ bthh_handshake_callback handshake_cb;
+
+} bthh_callbacks_t;
+
+
+
+/** Represents the standard BT-HH interface. */
+typedef struct {
+
+ /** set to sizeof(BtHhInterface) */
+ size_t size;
+
+ /**
+ * Register the BtHh callbacks
+ */
+ bt_status_t (*init)( bthh_callbacks_t* callbacks );
+
+ /** connect to hid device */
+ bt_status_t (*connect)( bt_bdaddr_t *bd_addr);
+
+ /** dis-connect from hid device */
+ bt_status_t (*disconnect)( bt_bdaddr_t *bd_addr );
+
+ /** Virtual UnPlug (VUP) the specified HID device */
+ bt_status_t (*virtual_unplug)(bt_bdaddr_t *bd_addr);
+
+ /** Set the HID device descriptor for the specified HID device. */
+ bt_status_t (*set_info)(bt_bdaddr_t *bd_addr, bthh_hid_info_t hid_info );
+
+ /** Get the HID proto mode. */
+ bt_status_t (*get_protocol) (bt_bdaddr_t *bd_addr, bthh_protocol_mode_t protocolMode);
+
+ /** Set the HID proto mode. */
+ bt_status_t (*set_protocol)(bt_bdaddr_t *bd_addr, bthh_protocol_mode_t protocolMode);
+
+ /** Send a GET_REPORT to HID device. */
+ bt_status_t (*get_report)(bt_bdaddr_t *bd_addr, bthh_report_type_t reportType, uint8_t reportId, int bufferSize);
+
+ /** Send a SET_REPORT to HID device. */
+ bt_status_t (*set_report)(bt_bdaddr_t *bd_addr, bthh_report_type_t reportType, char* report);
+
+ /** Send data to HID device. */
+ bt_status_t (*send_data)(bt_bdaddr_t *bd_addr, char* data);
+
+ /** Closes the interface. */
+ void (*cleanup)( void );
+
+} bthh_interface_t;
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_HH_H */
+
+
diff --git a/libhardware/include/hardware/bt_hl.h b/libhardware/include/hardware/bt_hl.h
new file mode 100644
index 0000000..bd29e3a
--- /dev/null
+++ b/libhardware/include/hardware/bt_hl.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_HL_H
+#define ANDROID_INCLUDE_BT_HL_H
+
+__BEGIN_DECLS
+
+/* HL connection states */
+
+typedef enum
+{
+ BTHL_MDEP_ROLE_SOURCE,
+ BTHL_MDEP_ROLE_SINK
+} bthl_mdep_role_t;
+
+typedef enum {
+ BTHL_APP_REG_STATE_REG_SUCCESS,
+ BTHL_APP_REG_STATE_REG_FAILED,
+ BTHL_APP_REG_STATE_DEREG_SUCCESS,
+ BTHL_APP_REG_STATE_DEREG_FAILED
+} bthl_app_reg_state_t;
+
+typedef enum
+{
+ BTHL_CHANNEL_TYPE_RELIABLE,
+ BTHL_CHANNEL_TYPE_STREAMING,
+ BTHL_CHANNEL_TYPE_ANY
+} bthl_channel_type_t;
+
+
+/* HL connection states */
+typedef enum {
+ BTHL_CONN_STATE_CONNECTING,
+ BTHL_CONN_STATE_CONNECTED,
+ BTHL_CONN_STATE_DISCONNECTING,
+ BTHL_CONN_STATE_DISCONNECTED,
+ BTHL_CONN_STATE_DESTROYED
+} bthl_channel_state_t;
+
+typedef struct
+{
+ bthl_mdep_role_t mdep_role;
+ int data_type;
+ bthl_channel_type_t channel_type;
+ const char *mdep_description; /* MDEP description to be used in the SDP (optional); null terminated */
+} bthl_mdep_cfg_t;
+
+typedef struct
+{
+ const char *application_name;
+ const char *provider_name; /* provider name to be used in the SDP (optional); null terminated */
+ const char *srv_name; /* service name to be used in the SDP (optional); null terminated*/
+ const char *srv_desp; /* service description to be used in the SDP (optional); null terminated */
+ int number_of_mdeps;
+ bthl_mdep_cfg_t *mdep_cfg; /* Dynamic array */
+} bthl_reg_param_t;
+
+/** Callback for application registration status.
+ * state will have one of the values from bthl_app_reg_state_t
+ */
+typedef void (* bthl_app_reg_state_callback)(int app_id, bthl_app_reg_state_t state);
+
+/** Callback for channel connection state change.
+ * state will have one of the values from
+ * bthl_connection_state_t and fd (file descriptor)
+ */
+typedef void (* bthl_channel_state_callback)(int app_id, bt_bdaddr_t *bd_addr, int mdep_cfg_index, int channel_id, bthl_channel_state_t state, int fd);
+
+/** BT-HL callback structure. */
+typedef struct {
+ /** set to sizeof(bthl_callbacks_t) */
+ size_t size;
+ bthl_app_reg_state_callback app_reg_state_cb;
+ bthl_channel_state_callback channel_state_cb;
+} bthl_callbacks_t;
+
+
+/** Represents the standard BT-HL interface. */
+typedef struct {
+
+ /** set to sizeof(bthl_interface_t) */
+ size_t size;
+
+ /**
+ * Register the Bthl callbacks
+ */
+ bt_status_t (*init)( bthl_callbacks_t* callbacks );
+
+ /** Register HL application */
+ bt_status_t (*register_application) ( bthl_reg_param_t *p_reg_param, int *app_id);
+
+ /** Unregister HL application */
+ bt_status_t (*unregister_application) (int app_id);
+
+ /** connect channel */
+ bt_status_t (*connect_channel)(int app_id, bt_bdaddr_t *bd_addr, int mdep_cfg_index, int *channel_id);
+
+ /** destroy channel */
+ bt_status_t (*destroy_channel)(int channel_id);
+
+ /** Close the Bthl callback **/
+ void (*cleanup)(void);
+
+} bthl_interface_t;
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_HL_H */
+
+
diff --git a/libhardware/include/hardware/bt_mce.h b/libhardware/include/hardware/bt_mce.h
new file mode 100644
index 0000000..5d159b3
--- /dev/null
+++ b/libhardware/include/hardware/bt_mce.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_MCE_H
+#define ANDROID_INCLUDE_BT_MCE_H
+
+__BEGIN_DECLS
+
+/** MAS instance description */
+typedef struct
+{
+ int id;
+ int scn;
+ int msg_types;
+ char *p_name;
+} btmce_mas_instance_t;
+
+/** callback for get_remote_mas_instances */
+typedef void (*btmce_remote_mas_instances_callback)(bt_status_t status, bt_bdaddr_t *bd_addr,
+ int num_instances, btmce_mas_instance_t *instances);
+
+typedef struct {
+ /** set to sizeof(btmce_callbacks_t) */
+ size_t size;
+ btmce_remote_mas_instances_callback remote_mas_instances_cb;
+} btmce_callbacks_t;
+
+typedef struct {
+ /** set to size of this struct */
+ size_t size;
+
+ /** register BT MCE callbacks */
+ bt_status_t (*init)(btmce_callbacks_t *callbacks);
+
+ /** search for MAS instances on remote device */
+ bt_status_t (*get_remote_mas_instances)(bt_bdaddr_t *bd_addr);
+} btmce_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_MCE_H */
diff --git a/libhardware/include/hardware/bt_pan.h b/libhardware/include/hardware/bt_pan.h
new file mode 100644
index 0000000..83e7949
--- /dev/null
+++ b/libhardware/include/hardware/bt_pan.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_PAN_H
+#define ANDROID_INCLUDE_BT_PAN_H
+
+__BEGIN_DECLS
+
+#define BTPAN_ROLE_NONE 0
+#define BTPAN_ROLE_PANNAP 1
+#define BTPAN_ROLE_PANU 2
+
+typedef enum {
+ BTPAN_STATE_CONNECTED = 0,
+ BTPAN_STATE_CONNECTING = 1,
+ BTPAN_STATE_DISCONNECTED = 2,
+ BTPAN_STATE_DISCONNECTING = 3
+} btpan_connection_state_t;
+
+typedef enum {
+ BTPAN_STATE_ENABLED = 0,
+ BTPAN_STATE_DISABLED = 1
+} btpan_control_state_t;
+
+/**
+* Callback for pan connection state
+*/
+typedef void (*btpan_connection_state_callback)(btpan_connection_state_t state, bt_status_t error,
+ const bt_bdaddr_t *bd_addr, int local_role, int remote_role);
+typedef void (*btpan_control_state_callback)(btpan_control_state_t state, int local_role,
+ bt_status_t error, const char* ifname);
+
+typedef struct {
+ size_t size;
+ btpan_control_state_callback control_state_cb;
+ btpan_connection_state_callback connection_state_cb;
+} btpan_callbacks_t;
+typedef struct {
+ /** set to size of this struct*/
+ size_t size;
+ /**
+ * Initialize the pan interface and register the btpan callbacks
+ */
+ bt_status_t (*init)(const btpan_callbacks_t* callbacks);
+ /*
+ * enable the pan service by specified role. The result state of
+ * enabl will be returned by btpan_control_state_callback. when pan-nap is enabled,
+ * the state of connecting panu device will be notified by btpan_connection_state_callback
+ */
+ bt_status_t (*enable)(int local_role);
+ /*
+ * get current pan local role
+ */
+ int (*get_local_role)(void);
+ /**
+ * start bluetooth pan connection to the remote device by specified pan role. The result state will be
+ * returned by btpan_connection_state_callback
+ */
+ bt_status_t (*connect)(const bt_bdaddr_t *bd_addr, int local_role, int remote_role);
+ /**
+ * stop bluetooth pan connection. The result state will be returned by btpan_connection_state_callback
+ */
+ bt_status_t (*disconnect)(const bt_bdaddr_t *bd_addr);
+
+ /**
+ * Cleanup the pan interface
+ */
+ void (*cleanup)(void);
+
+} btpan_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_PAN_H */
diff --git a/libhardware/include/hardware/bt_rc.h b/libhardware/include/hardware/bt_rc.h
new file mode 100644
index 0000000..71a8901
--- /dev/null
+++ b/libhardware/include/hardware/bt_rc.h
@@ -0,0 +1,723 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_BT_RC_H
+#define ANDROID_INCLUDE_BT_RC_H
+
+__BEGIN_DECLS
+
+/* Change this macro to use multiple RC */
+#define BT_RC_NUM_APP 1
+
+/* Macros */
+#define BTRC_MAX_ATTR_STR_LEN (1 << 16)
+#define BTRC_UID_SIZE 8
+#define BTRC_MAX_APP_SETTINGS 8
+#define BTRC_MAX_FOLDER_DEPTH 4
+#define BTRC_MAX_APP_ATTR_SIZE 16
+#define BTRC_MAX_ELEM_ATTR_SIZE 8
+#define BTRC_FEATURE_BIT_MASK_SIZE 16
+
+/* Macros for valid scopes in get_folder_items */
+#define BTRC_SCOPE_PLAYER_LIST 0x00 /* Media Player List */
+#define BTRC_SCOPE_FILE_SYSTEM 0x01 /* Virtual File System */
+#define BTRC_SCOPE_SEARCH 0x02 /* Search */
+#define BTRC_SCOPE_NOW_PLAYING 0x03 /* Now Playing */
+
+/* Macros for supported character encoding */
+#define BTRC_CHARSET_ID_UTF8 0x006A
+
+/* Macros for item types */
+#define BTRC_ITEM_PLAYER 0x01 /* Media Player */
+#define BTRC_ITEM_FOLDER 0x02 /* Folder */
+#define BTRC_ITEM_MEDIA 0x03 /* Media File */
+
+/* Macros for media attribute IDs */
+#define BTRC_MEDIA_ATTR_ID_INVALID -1
+#define BTRC_MEDIA_ATTR_ID_TITLE 0x00000001
+#define BTRC_MEDIA_ATTR_ID_ARTIST 0x00000002
+#define BTRC_MEDIA_ATTR_ID_ALBUM 0x00000003
+#define BTRC_MEDIA_ATTR_ID_TRACK_NUM 0x00000004
+#define BTRC_MEDIA_ATTR_ID_NUM_TRACKS 0x00000005
+#define BTRC_MEDIA_ATTR_ID_GENRE 0x00000006
+#define BTRC_MEDIA_ATTR_ID_PLAYING_TIME 0x00000007 /* in miliseconds */
+
+/* Macros for folder types */
+#define BTRC_FOLDER_TYPE_MIXED 0x00
+#define BTRC_FOLDER_TYPE_TITLES 0x01
+#define BTRC_FOLDER_TYPE_ALBUMS 0x02
+#define BTRC_FOLDER_TYPE_ARTISTS 0x03
+#define BTRC_FOLDER_TYPE_GENRES 0x04
+#define BTRC_FOLDER_TYPE_PLAYLISTS 0x05
+#define BTRC_FOLDER_TYPE_YEARS 0x06
+
+/* Macros for media types */
+#define BTRC_MEDIA_TYPE_AUDIO 0x00 /* audio */
+#define BTRC_MEDIA_TYPE_VIDEO 0x01 /* video */
+
+/* Macros for num attributes */
+#define BTRC_NUM_ATTR_NONE 0xFF /* No attributes required */
+#define BTRC_NUM_ATTR_ALL 0X00 /* All attributes required */
+
+#define BTRC_HANDLE_NONE 0xFF
+
+typedef uint8_t btrc_uid_t[BTRC_UID_SIZE];
+
+typedef enum {
+ BTRC_CONNECTION_STATE_DISCONNECTED = 0,
+ BTRC_CONNECTION_STATE_CONNECTED
+} btrc_connection_state_t;
+
+typedef enum {
+ BTRC_FEAT_NONE = 0x00, /* AVRCP 1.0 */
+ BTRC_FEAT_METADATA = 0x01, /* AVRCP 1.3 */
+ BTRC_FEAT_ABSOLUTE_VOLUME = 0x02, /* Supports TG role and volume sync */
+ BTRC_FEAT_BROWSE = 0x04, /* AVRCP 1.4 and up, with Browsing support */
+} btrc_remote_features_t;
+
+typedef enum {
+ BTRC_PLAYSTATE_STOPPED = 0x00, /* Stopped */
+ BTRC_PLAYSTATE_PLAYING = 0x01, /* Playing */
+ BTRC_PLAYSTATE_PAUSED = 0x02, /* Paused */
+ BTRC_PLAYSTATE_FWD_SEEK = 0x03, /* Fwd Seek*/
+ BTRC_PLAYSTATE_REV_SEEK = 0x04, /* Rev Seek*/
+ BTRC_PLAYSTATE_ERROR = 0xFF, /* Error */
+} btrc_play_status_t;
+
+typedef enum {
+ BTRC_EVT_PLAY_STATUS_CHANGED = 0x01,
+ BTRC_EVT_TRACK_CHANGE = 0x02,
+ BTRC_EVT_TRACK_REACHED_END = 0x03,
+ BTRC_EVT_TRACK_REACHED_START = 0x04,
+ BTRC_EVT_PLAY_POS_CHANGED = 0x05,
+ BTRC_EVT_APP_SETTINGS_CHANGED = 0x08,
+ BTRC_EVT_NOW_PLAYING_CONTENT_CHANGED = 0x09,
+ BTRC_EVT_AVAL_PLAYER_CHANGE = 0x0a,
+ BTRC_EVT_ADDR_PLAYER_CHANGE = 0x0b,
+ BTRC_EVT_UIDS_CHANGED = 0x0c,
+ BTRC_EVT_VOL_CHANGED = 0x0d,
+} btrc_event_id_t;
+
+typedef enum {
+ BTRC_NOTIFICATION_TYPE_INTERIM = 0,
+ BTRC_NOTIFICATION_TYPE_CHANGED = 1,
+} btrc_notification_type_t;
+
+typedef enum {
+ BTRC_PLAYER_ATTR_EQUALIZER = 0x01,
+ BTRC_PLAYER_ATTR_REPEAT = 0x02,
+ BTRC_PLAYER_ATTR_SHUFFLE = 0x03,
+ BTRC_PLAYER_ATTR_SCAN = 0x04,
+} btrc_player_attr_t;
+
+typedef enum {
+ BTRC_MEDIA_ATTR_TITLE = 0x01,
+ BTRC_MEDIA_ATTR_ARTIST = 0x02,
+ BTRC_MEDIA_ATTR_ALBUM = 0x03,
+ BTRC_MEDIA_ATTR_TRACK_NUM = 0x04,
+ BTRC_MEDIA_ATTR_NUM_TRACKS = 0x05,
+ BTRC_MEDIA_ATTR_GENRE = 0x06,
+ BTRC_MEDIA_ATTR_PLAYING_TIME = 0x07,
+} btrc_media_attr_t;
+
+typedef enum {
+ BTRC_PLAYER_VAL_OFF_REPEAT = 0x01,
+ BTRC_PLAYER_VAL_SINGLE_REPEAT = 0x02,
+ BTRC_PLAYER_VAL_ALL_REPEAT = 0x03,
+ BTRC_PLAYER_VAL_GROUP_REPEAT = 0x04
+} btrc_player_repeat_val_t;
+
+typedef enum {
+ BTRC_PLAYER_VAL_OFF_SHUFFLE = 0x01,
+ BTRC_PLAYER_VAL_ALL_SHUFFLE = 0x02,
+ BTRC_PLAYER_VAL_GROUP_SHUFFLE = 0x03
+} btrc_player_shuffle_val_t;
+
+typedef enum {
+ BTRC_STS_BAD_CMD = 0x00, /* Invalid command */
+ BTRC_STS_BAD_PARAM = 0x01, /* Invalid parameter */
+ BTRC_STS_NOT_FOUND = 0x02, /* Specified parameter is wrong or not found */
+ BTRC_STS_INTERNAL_ERR = 0x03, /* Internal Error */
+ BTRC_STS_NO_ERROR = 0x04, /* Operation Success */
+ BTRC_STS_UID_CHANGED = 0x05, /* UIDs changed */
+ BTRC_STS_RESERVED = 0x06, /* Reserved */
+ BTRC_STS_INV_DIRN = 0x07, /* Invalid direction */
+ BTRC_STS_INV_DIRECTORY = 0x08, /* Invalid directory */
+ BTRC_STS_INV_ITEM = 0x09, /* Invalid Item */
+ BTRC_STS_INV_SCOPE = 0x0a, /* Invalid scope */
+ BTRC_STS_INV_RANGE = 0x0b, /* Invalid range */
+ BTRC_STS_DIRECTORY = 0x0c, /* UID is a directory */
+ BTRC_STS_MEDIA_IN_USE = 0x0d, /* Media in use */
+ BTRC_STS_PLAY_LIST_FULL = 0x0e, /* Playing list full */
+ BTRC_STS_SRCH_NOT_SPRTD = 0x0f, /* Search not supported */
+ BTRC_STS_SRCH_IN_PROG = 0x10, /* Search in progress */
+ BTRC_STS_INV_PLAYER = 0x11, /* Invalid player */
+ BTRC_STS_PLAY_NOT_BROW = 0x12, /* Player not browsable */
+ BTRC_STS_PLAY_NOT_ADDR = 0x13, /* Player not addressed */
+ BTRC_STS_INV_RESULTS = 0x14, /* Invalid results */
+ BTRC_STS_NO_AVBL_PLAY = 0x15, /* No available players */
+ BTRC_STS_ADDR_PLAY_CHGD = 0x16, /* Addressed player changed */
+} btrc_status_t;
+
+typedef struct {
+ uint16_t player_id;
+ uint16_t uid_counter;
+} btrc_addr_player_changed_t;
+
+typedef struct {
+ uint8_t num_attr;
+ uint8_t attr_ids[BTRC_MAX_APP_SETTINGS];
+ uint8_t attr_values[BTRC_MAX_APP_SETTINGS];
+} btrc_player_settings_t;
+
+typedef struct {
+ uint8_t val;
+ uint16_t charset_id;
+ uint16_t str_len;
+ uint8_t *p_str;
+} btrc_player_app_ext_attr_val_t;
+
+typedef struct {
+ uint8_t attr_id;
+ uint16_t charset_id;
+ uint16_t str_len;
+ uint8_t *p_str;
+ uint8_t num_val;
+ btrc_player_app_ext_attr_val_t ext_attr_val[BTRC_MAX_APP_ATTR_SIZE];
+} btrc_player_app_ext_attr_t;
+
+typedef struct {
+ uint8_t attr_id;
+ uint8_t num_val;
+ uint8_t attr_val[BTRC_MAX_APP_ATTR_SIZE];
+} btrc_player_app_attr_t;
+
+typedef struct {
+ uint32_t start_item;
+ uint32_t end_item;
+ uint32_t size;
+ uint32_t attrs[BTRC_MAX_ELEM_ATTR_SIZE];
+ uint8_t attr_count;
+} btrc_getfolderitem_t;
+
+typedef struct {
+ uint16_t type;
+ uint16_t uid_counter;
+} btrc_uids_changed_t;
+
+typedef struct {
+ uint16_t type;
+} btrc_now_playing_changed_t;
+
+typedef union
+{
+ btrc_play_status_t play_status;
+ btrc_uid_t track; /* queue position in NowPlaying */
+ uint32_t song_pos;
+ uint16_t uid_counter;
+ btrc_player_settings_t player_setting;
+ btrc_addr_player_changed_t addr_player_changed;
+ btrc_uids_changed_t uids_changed;
+ btrc_now_playing_changed_t now_playing_changed;
+} btrc_register_notification_t;
+
+typedef struct {
+ uint8_t id; /* can be attr_id or value_id */
+ uint8_t text[BTRC_MAX_ATTR_STR_LEN];
+} btrc_player_setting_text_t;
+
+typedef struct {
+ uint32_t attr_id;
+ uint8_t text[BTRC_MAX_ATTR_STR_LEN];
+} btrc_element_attr_val_t;
+
+typedef struct {
+ uint16_t player_id;
+ uint8_t major_type;
+ uint32_t sub_type;
+ uint8_t play_status;
+ uint8_t features[BTRC_FEATURE_BIT_MASK_SIZE];
+ uint16_t charset_id;
+ uint8_t name[BTRC_MAX_ATTR_STR_LEN];
+} btrc_item_player_t;
+
+typedef struct {
+ uint8_t uid[BTRC_UID_SIZE];
+ uint8_t type;
+ uint8_t playable;
+ uint16_t charset_id;
+ uint8_t name[BTRC_MAX_ATTR_STR_LEN];
+} btrc_item_folder_t;
+
+typedef struct {
+ uint8_t uid[BTRC_UID_SIZE];
+ uint8_t type;
+ uint16_t charset_id;
+ uint8_t name[BTRC_MAX_ATTR_STR_LEN];
+ int num_attrs;
+ btrc_element_attr_val_t* p_attrs;
+} btrc_item_media_t;
+
+typedef struct {
+ uint8_t item_type;
+ union
+ {
+ btrc_item_player_t player;
+ btrc_item_folder_t folder;
+ btrc_item_media_t media;
+ };
+} btrc_folder_items_t;
+
+typedef struct {
+ uint16_t str_len;
+ uint8_t p_str[BTRC_MAX_ATTR_STR_LEN];
+} btrc_br_folder_name_t;
+
+/** Callback for the controller's supported feautres */
+typedef void (* btrc_remote_features_callback)(bt_bdaddr_t *bd_addr,
+ btrc_remote_features_t features);
+
+/** Callback for play status request */
+typedef void (* btrc_get_play_status_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for list player application attributes (Shuffle, Repeat,...) */
+typedef void (* btrc_list_player_app_attr_callback)(bt_bdaddr_t *bd_addr);
+
+/** Callback for list player application attributes (Shuffle, Repeat,...) */
+typedef void (* btrc_list_player_app_values_callback)(btrc_player_attr_t attr_id,
+ bt_bdaddr_t *bd_addr);
+
+/** Callback for getting the current player application settings value
+** num_attr: specifies the number of attribute ids contained in p_attrs
+*/
+typedef void (* btrc_get_player_app_value_callback) (uint8_t num_attr,
+ btrc_player_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
+
+/** Callback for getting the player application settings attributes' text
+** num_attr: specifies the number of attribute ids contained in p_attrs
+*/
+typedef void (* btrc_get_player_app_attrs_text_callback) (uint8_t num_attr,
+ btrc_player_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
+
+/** Callback for getting the player application settings values' text
+** num_attr: specifies the number of value ids contained in p_vals
+*/
+typedef void (* btrc_get_player_app_values_text_callback) (uint8_t attr_id, uint8_t num_val,
+ uint8_t *p_vals, bt_bdaddr_t *bd_addr);
+
+/** Callback for setting the player application settings values */
+typedef void (* btrc_set_player_app_value_callback) (btrc_player_settings_t *p_vals,
+ bt_bdaddr_t *bd_addr);
+
+/** Callback to fetch the get element attributes of the current song
+** num_attr: specifies the number of attributes requested in p_attrs
+*/
+typedef void (* btrc_get_element_attr_callback) (uint8_t num_attr, btrc_media_attr_t *p_attrs,
+ bt_bdaddr_t *bd_addr);
+
+/** Callback for register notification (Play state change/track change/...)
+** param: Is only valid if event_id is BTRC_EVT_PLAY_POS_CHANGED
+*/
+typedef void (* btrc_register_notification_callback) (btrc_event_id_t event_id, uint32_t param,
+ bt_bdaddr_t *bd_addr);
+
+/* AVRCP 1.4 Enhancements */
+/** Callback for volume change on CT
+** volume: Current volume setting on the CT (0-127)
+*/
+typedef void (* btrc_volume_change_callback) (uint8_t volume, uint8_t ctype, bt_bdaddr_t *bd_addr);
+
+/** Callback for passthrough commands */
+typedef void (* btrc_passthrough_cmd_callback) (int id, int key_state, bt_bdaddr_t *bd_addr);
+
+/** Callback for set addressed player response on TG **/
+typedef void (* btrc_set_addressed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
+
+/** Callback for set browsed player response on TG **/
+typedef void (* btrc_set_browsed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
+
+/** Callback for get folder items on TG
+** num_attr: specifies the number of attributes requested in p_attr_ids
+*/
+typedef void (* btrc_get_folder_items_callback) (uint8_t scope, uint32_t start_item,
+ uint32_t end_item, uint8_t num_attr, uint32_t *p_attr_ids, bt_bdaddr_t *bd_addr);
+
+/** Callback for changing browsed path on TG **/
+typedef void (* btrc_change_path_callback) (uint8_t direction,
+ uint8_t* folder_uid, bt_bdaddr_t *bd_addr);
+
+/** Callback to fetch the get item attributes of the media item
+** num_attr: specifies the number of attributes requested in p_attrs
+*/
+typedef void (* btrc_get_item_attr_callback) (uint8_t scope, uint8_t* uid, uint16_t uid_counter,
+ uint8_t num_attr, btrc_media_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
+
+/** Callback for play request for the media item indicated by an identifier */
+typedef void (* btrc_play_item_callback) (uint8_t scope,
+ uint16_t uid_counter, uint8_t* uid, bt_bdaddr_t *bd_addr);
+
+/** Callback to fetch total number of items from a folder **/
+typedef void (* btrc_get_total_num_of_items_callback) (uint8_t scope, bt_bdaddr_t *bd_addr);
+
+/** Callback for conducting recursive search on a current browsed path for a specified string */
+typedef void (* btrc_search_callback) (uint16_t charset_id,
+ uint16_t str_len, uint8_t* p_str, bt_bdaddr_t *bd_addr);
+
+/** Callback to add a specified media item indicated by an identifier to now playing queue. */
+typedef void (* btrc_add_to_now_playing_callback) (uint8_t scope,
+ uint8_t* uid, uint16_t uid_counter, bt_bdaddr_t *bd_addr);
+
+/** Callback for set addressed player response on TG **/
+typedef void (* btrc_set_addressed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
+
+/** Callback for set browsed player response on TG **/
+typedef void (* btrc_set_browsed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
+
+/** Callback for get folder items on TG
+** num_attr: specifies the number of attributes requested in p_attr_ids
+*/
+typedef void (* btrc_get_folder_items_callback) (uint8_t scope, uint32_t start_item,
+ uint32_t end_item, uint8_t num_attr, uint32_t *p_attr_ids, bt_bdaddr_t *bd_addr);
+
+/** Callback for changing browsed path on TG **/
+typedef void (* btrc_change_path_callback) (uint8_t direction,
+ uint8_t* folder_uid, bt_bdaddr_t *bd_addr);
+
+/** Callback to fetch the get item attributes of the media item
+** num_attr: specifies the number of attributes requested in p_attrs
+*/
+typedef void (* btrc_get_item_attr_callback) (uint8_t scope, uint8_t* uid, uint16_t uid_counter,
+ uint8_t num_attr, btrc_media_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
+
+/** Callback for play request for the media item indicated by an identifier */
+typedef void (* btrc_play_item_callback) (uint8_t scope,
+ uint16_t uid_counter, uint8_t* uid, bt_bdaddr_t *bd_addr);
+
+/** Callback to fetch total number of items from a folder **/
+typedef void (* btrc_get_total_num_of_items_callback) (uint8_t scope, bt_bdaddr_t *bd_addr);
+
+/** Callback for conducting recursive search on a current browsed path for a specified string */
+typedef void (* btrc_search_callback) (uint16_t charset_id,
+ uint16_t str_len, uint8_t* p_str, bt_bdaddr_t *bd_addr);
+
+/** Callback to add a specified media item indicated by an identifier to now playing queue. */
+typedef void (* btrc_add_to_now_playing_callback) (uint8_t scope,
+ uint8_t* uid, uint16_t uid_counter, bt_bdaddr_t *bd_addr);
+
+/** Callback for set addressed player response on TG **/
+typedef void (* btrc_set_addressed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
+
+/** Callback for set browsed player response on TG **/
+typedef void (* btrc_set_browsed_player_callback) (uint16_t player_id, bt_bdaddr_t *bd_addr);
+
+/** Callback for get folder items on TG
+** num_attr: specifies the number of attributes requested in p_attr_ids
+*/
+typedef void (* btrc_get_folder_items_callback) (uint8_t scope, uint32_t start_item,
+ uint32_t end_item, uint8_t num_attr, uint32_t *p_attr_ids, bt_bdaddr_t *bd_addr);
+
+/** Callback for changing browsed path on TG **/
+typedef void (* btrc_change_path_callback) (uint8_t direction,
+ uint8_t* folder_uid, bt_bdaddr_t *bd_addr);
+
+/** Callback to fetch the get item attributes of the media item
+** num_attr: specifies the number of attributes requested in p_attrs
+*/
+typedef void (* btrc_get_item_attr_callback) (uint8_t scope, uint8_t* uid, uint16_t uid_counter,
+ uint8_t num_attr, btrc_media_attr_t *p_attrs, bt_bdaddr_t *bd_addr);
+
+/** Callback for play request for the media item indicated by an identifier */
+typedef void (* btrc_play_item_callback) (uint8_t scope,
+ uint16_t uid_counter, uint8_t* uid, bt_bdaddr_t *bd_addr);
+
+/** Callback to fetch total number of items from a folder **/
+typedef void (* btrc_get_total_num_of_items_callback) (uint8_t scope, bt_bdaddr_t *bd_addr);
+
+/** Callback for conducting recursive search on a current browsed path for a specified string */
+typedef void (* btrc_search_callback) (uint16_t charset_id,
+ uint16_t str_len, uint8_t* p_str, bt_bdaddr_t *bd_addr);
+
+/** Callback to add a specified media item indicated by an identifier to now playing queue. */
+typedef void (* btrc_add_to_now_playing_callback) (uint8_t scope,
+ uint8_t* uid, uint16_t uid_counter, bt_bdaddr_t *bd_addr);
+
+/** BT-RC Target callback structure. */
+typedef struct {
+ /** set to sizeof(BtRcCallbacks) */
+ size_t size;
+ btrc_remote_features_callback remote_features_cb;
+ btrc_get_play_status_callback get_play_status_cb;
+ btrc_list_player_app_attr_callback list_player_app_attr_cb;
+ btrc_list_player_app_values_callback list_player_app_values_cb;
+ btrc_get_player_app_value_callback get_player_app_value_cb;
+ btrc_get_player_app_attrs_text_callback get_player_app_attrs_text_cb;
+ btrc_get_player_app_values_text_callback get_player_app_values_text_cb;
+ btrc_set_player_app_value_callback set_player_app_value_cb;
+ btrc_get_element_attr_callback get_element_attr_cb;
+ btrc_register_notification_callback register_notification_cb;
+ btrc_volume_change_callback volume_change_cb;
+ btrc_passthrough_cmd_callback passthrough_cmd_cb;
+ btrc_set_addressed_player_callback set_addressed_player_cb;
+ btrc_set_browsed_player_callback set_browsed_player_cb;
+ btrc_get_folder_items_callback get_folder_items_cb;
+ btrc_change_path_callback change_path_cb;
+ btrc_get_item_attr_callback get_item_attr_cb;
+ btrc_play_item_callback play_item_cb;
+ btrc_get_total_num_of_items_callback get_total_num_of_items_cb;
+ btrc_search_callback search_cb;
+ btrc_add_to_now_playing_callback add_to_now_playing_cb;
+} btrc_callbacks_t;
+
+/** Represents the standard BT-RC AVRCP Target interface. */
+typedef struct {
+
+ /** set to sizeof(BtRcInterface) */
+ size_t size;
+ /**
+ * Register the BtRc callbacks
+ */
+ bt_status_t (*init)( btrc_callbacks_t* callbacks );
+
+ /** Respose to GetPlayStatus request. Contains the current
+ ** 1. Play status
+ ** 2. Song duration/length
+ ** 3. Song position
+ */
+ bt_status_t (*get_play_status_rsp)( bt_bdaddr_t *bd_addr, btrc_play_status_t play_status,
+ uint32_t song_len, uint32_t song_pos);
+
+ /** Lists the support player application attributes (Shuffle/Repeat/...)
+ ** num_attr: Specifies the number of attributes contained in the pointer p_attrs
+ */
+ bt_status_t (*list_player_app_attr_rsp)( bt_bdaddr_t *bd_addr, int num_attr,
+ btrc_player_attr_t *p_attrs);
+
+ /** Lists the support player application attributes (Shuffle Off/On/Group)
+ ** num_val: Specifies the number of values contained in the pointer p_vals
+ */
+ bt_status_t (*list_player_app_value_rsp)( bt_bdaddr_t *bd_addr, int num_val, uint8_t *p_vals);
+
+ /** Returns the current application attribute values for each of the specified attr_id */
+ bt_status_t (*get_player_app_value_rsp)( bt_bdaddr_t *bd_addr, btrc_player_settings_t *p_vals);
+
+ /** Returns the application attributes text ("Shuffle"/"Repeat"/...)
+ ** num_attr: Specifies the number of attributes' text contained in the pointer p_attrs
+ */
+ bt_status_t (*get_player_app_attr_text_rsp)( bt_bdaddr_t *bd_addr, int num_attr,
+ btrc_player_setting_text_t *p_attrs);
+
+ /** Returns the application attributes text ("Shuffle"/"Repeat"/...)
+ ** num_attr: Specifies the number of attribute values' text contained in the pointer p_vals
+ */
+ bt_status_t (*get_player_app_value_text_rsp)( bt_bdaddr_t *bd_addr, int num_val,
+ btrc_player_setting_text_t *p_vals);
+
+ /** Returns the current songs' element attributes text ("Title"/"Album"/"Artist")
+ ** num_attr: Specifies the number of attributes' text contained in the pointer p_attrs
+ */
+ bt_status_t (*get_element_attr_rsp)( bt_bdaddr_t *bd_addr, uint8_t num_attr,
+ btrc_element_attr_val_t *p_attrs);
+
+ /** Response to set player attribute request ("Shuffle"/"Repeat")
+ ** rsp_status: Status of setting the player attributes for the current media player
+ */
+ bt_status_t (*set_player_app_value_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
+
+ /* Response to the register notification request (Play state change/track change/...).
+ ** event_id: Refers to the event_id this notification change corresponds too
+ ** type: Response type - interim/changed
+ ** p_params: Based on the event_id, this parameter should be populated
+ */
+ bt_status_t (*register_notification_rsp)(btrc_event_id_t event_id,
+ btrc_notification_type_t type,
+ btrc_register_notification_t *p_param);
+
+ /* AVRCP 1.4 enhancements */
+
+ /**Send current volume setting to remote side. Support limited to SetAbsoluteVolume
+ ** This can be enhanced to support Relative Volume (AVRCP 1.0).
+ ** With RelateVolume, we will send VOLUME_UP/VOLUME_DOWN opposed to absolute volume level
+ ** volume: Should be in the range 0-127. bit7 is reseved and cannot be set
+ */
+ bt_status_t (*set_volume)(uint8_t volume);
+
+ /* Set addressed player response from TG to CT */
+ bt_status_t (*set_addressed_player_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
+
+ /* Set browsed player response from TG to CT */
+ bt_status_t (*set_browsed_player_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
+ uint32_t num_items, uint16_t charset_id, uint8_t folder_depth,
+ btrc_br_folder_name_t *p_folders);
+
+ /* Get folder item list response from TG to CT */
+ bt_status_t (*get_folder_items_list_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
+ uint16_t uid_counter, uint8_t num_items, btrc_folder_items_t *p_items);
+
+ /* Change path response from TG to CT */
+ bt_status_t (*change_path_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
+ uint32_t num_items);
+
+ /** Returns the element's attributes num_attr: Specifies the number of attributes' text
+ * contained in the pointer p_attrs
+ */
+ bt_status_t (*get_item_attr_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
+ uint8_t num_attr, btrc_element_attr_val_t *p_attrs);
+
+ /* play media item response from TG to CT */
+ bt_status_t (*play_item_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
+
+ /* get total number of items response from TG to CT*/
+ bt_status_t (*get_total_num_of_items_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status,
+ uint32_t uid_counter, uint32_t num_items);
+
+ /* Search VFS response from TG to CT */
+ bt_status_t (*search_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status, uint32_t uid_counter,
+ uint32_t num_items);
+
+ /* add_to_now playing list response from TG to CT */
+ bt_status_t (*add_to_now_playing_rsp)(bt_bdaddr_t *bd_addr, btrc_status_t rsp_status);
+
+ /** Closes the interface. */
+ void (*cleanup)( void );
+} btrc_interface_t;
+
+typedef void (* btrc_passthrough_rsp_callback) (bt_bdaddr_t *bd_addr, int id, int key_state);
+
+typedef void (* btrc_groupnavigation_rsp_callback) (int id, int key_state);
+
+typedef void (* btrc_connection_state_callback) (
+ bool rc_connect, bool bt_connect, bt_bdaddr_t *bd_addr);
+
+typedef void (* btrc_ctrl_getrcfeatures_callback) (bt_bdaddr_t *bd_addr, int features);
+
+typedef void (* btrc_ctrl_setabsvol_cmd_callback) (bt_bdaddr_t *bd_addr, uint8_t abs_vol, uint8_t label);
+
+typedef void (* btrc_ctrl_registernotification_abs_vol_callback) (bt_bdaddr_t *bd_addr, uint8_t label);
+
+typedef void (* btrc_ctrl_setplayerapplicationsetting_rsp_callback) (bt_bdaddr_t *bd_addr,
+ uint8_t accepted);
+
+typedef void (* btrc_ctrl_playerapplicationsetting_callback)(bt_bdaddr_t *bd_addr,
+ uint8_t num_attr,
+ btrc_player_app_attr_t *app_attrs,
+ uint8_t num_ext_attr,
+ btrc_player_app_ext_attr_t *ext_attrs);
+
+typedef void (* btrc_ctrl_playerapplicationsetting_changed_callback)(bt_bdaddr_t *bd_addr,
+ btrc_player_settings_t *p_vals);
+
+typedef void (* btrc_ctrl_track_changed_callback)(bt_bdaddr_t *bd_addr, uint8_t num_attr,
+ btrc_element_attr_val_t *p_attrs);
+
+typedef void (* btrc_ctrl_play_position_changed_callback)(bt_bdaddr_t *bd_addr,
+ uint32_t song_len, uint32_t song_pos);
+
+typedef void (* btrc_ctrl_play_status_changed_callback)(bt_bdaddr_t *bd_addr,
+ btrc_play_status_t play_status);
+
+typedef void (* btrc_ctrl_get_folder_items_callback )(bt_bdaddr_t *bd_addr,
+ btrc_status_t status,
+ const btrc_folder_items_t *folder_items,
+ uint8_t count);
+
+typedef void (* btrc_ctrl_change_path_callback)(bt_bdaddr_t *bd_addr, uint8_t count);
+
+typedef void (* btrc_ctrl_set_browsed_player_callback )(
+ bt_bdaddr_t *bd_addr, uint8_t num_items, uint8_t depth);
+typedef void (* btrc_ctrl_set_addressed_player_callback)(bt_bdaddr_t *bd_addr, uint8_t status);
+/** BT-RC Controller callback structure. */
+typedef struct {
+ /** set to sizeof(BtRcCallbacks) */
+ size_t size;
+ btrc_passthrough_rsp_callback passthrough_rsp_cb;
+ btrc_groupnavigation_rsp_callback groupnavigation_rsp_cb;
+ btrc_connection_state_callback connection_state_cb;
+ btrc_ctrl_getrcfeatures_callback getrcfeatures_cb;
+ btrc_ctrl_setplayerapplicationsetting_rsp_callback setplayerappsetting_rsp_cb;
+ btrc_ctrl_playerapplicationsetting_callback playerapplicationsetting_cb;
+ btrc_ctrl_playerapplicationsetting_changed_callback playerapplicationsetting_changed_cb;
+ btrc_ctrl_setabsvol_cmd_callback setabsvol_cmd_cb;
+ btrc_ctrl_registernotification_abs_vol_callback registernotification_absvol_cb;
+ btrc_ctrl_track_changed_callback track_changed_cb;
+ btrc_ctrl_play_position_changed_callback play_position_changed_cb;
+ btrc_ctrl_play_status_changed_callback play_status_changed_cb;
+ btrc_ctrl_get_folder_items_callback get_folder_items_cb;
+ btrc_ctrl_change_path_callback change_folder_path_cb;
+ btrc_ctrl_set_browsed_player_callback set_browsed_player_cb;
+ btrc_ctrl_set_addressed_player_callback set_addressed_player_cb;
+} btrc_ctrl_callbacks_t;
+
+/** Represents the standard BT-RC AVRCP Controller interface. */
+typedef struct {
+
+ /** set to sizeof(BtRcInterface) */
+ size_t size;
+ /**
+ * Register the BtRc callbacks
+ */
+ bt_status_t (*init)( btrc_ctrl_callbacks_t* callbacks );
+
+ /** send pass through command to target */
+ bt_status_t (*send_pass_through_cmd) (bt_bdaddr_t *bd_addr, uint8_t key_code,
+ uint8_t key_state );
+
+ /** send group navigation command to target */
+ bt_status_t (*send_group_navigation_cmd) (bt_bdaddr_t *bd_addr, uint8_t key_code,
+ uint8_t key_state );
+
+ /** send command to set player applicaiton setting attributes to target */
+ bt_status_t (*set_player_app_setting_cmd) (bt_bdaddr_t *bd_addr, uint8_t num_attrib,
+ uint8_t* attrib_ids, uint8_t* attrib_vals);
+
+ /** send command to play a particular item */
+ bt_status_t (*play_item_cmd) (
+ bt_bdaddr_t *bd_addr, uint8_t scope, uint8_t *uid, uint16_t uid_counter);
+
+ /** get the playback state */
+ bt_status_t (*get_playback_state_cmd) (bt_bdaddr_t *bd_addr);
+
+ /** get the now playing list */
+ bt_status_t (*get_now_playing_list_cmd) (bt_bdaddr_t *bd_addr, uint8_t start, uint8_t items);
+
+ /** get the folder list */
+ bt_status_t (*get_folder_list_cmd) (bt_bdaddr_t *bd_addr, uint8_t start, uint8_t items);
+
+ /** get the folder list */
+ bt_status_t (*get_player_list_cmd) (bt_bdaddr_t *bd_addr, uint8_t start, uint8_t items);
+
+ /** get the folder list */
+ bt_status_t (*change_folder_path_cmd) (bt_bdaddr_t *bd_addr, uint8_t direction, uint8_t * uid);
+
+ /** set browsed player */
+ bt_status_t (*set_browsed_player_cmd) (bt_bdaddr_t *bd_addr, uint16_t player_id);
+
+ /** set addressed player */
+ bt_status_t (*set_addressed_player_cmd) (bt_bdaddr_t *bd_addr, uint16_t player_id);
+
+ /** send rsp to set_abs_vol received from target */
+ bt_status_t (*set_volume_rsp) (bt_bdaddr_t *bd_addr, uint8_t abs_vol, uint8_t label);
+
+ /** send notificaiton rsp for abs vol to target */
+ bt_status_t (*register_abs_vol_rsp) (bt_bdaddr_t *bd_addr, btrc_notification_type_t rsp_type,
+ uint8_t abs_vol, uint8_t label);
+
+ /** Closes the interface. */
+ void (*cleanup)( void );
+} btrc_ctrl_interface_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_BT_RC_H */
diff --git a/libhardware/include/hardware/bt_sdp.h b/libhardware/include/hardware/bt_sdp.h
new file mode 100644
index 0000000..8f39bc5
--- /dev/null
+++ b/libhardware/include/hardware/bt_sdp.h
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "bluetooth.h"
+
+#define SDP_OPP_SUPPORTED_FORMATS_MAX_LENGTH 15
+
+__BEGIN_DECLS
+
+/**
+ * These events are handled by the state machine
+ */
+typedef enum {
+ SDP_TYPE_RAW, // Used to carry raw SDP search data for unknown UUIDs
+ SDP_TYPE_MAP_MAS, // Message Access Profile - Server
+ SDP_TYPE_MAP_MNS, // Message Access Profile - Client (Notification Server)
+ SDP_TYPE_PBAP_PSE, // Phone Book Profile - Server
+ SDP_TYPE_PBAP_PCE, // Phone Book Profile - Client
+ SDP_TYPE_OPP_SERVER, // Object Push Profile
+ SDP_TYPE_SAP_SERVER // SIM Access Profile
+} bluetooth_sdp_types;
+
+typedef struct _bluetooth_sdp_hdr {
+ bluetooth_sdp_types type;
+ bt_uuid_t uuid;
+ uint32_t service_name_length;
+ char *service_name;
+ int32_t rfcomm_channel_number;
+ int32_t l2cap_psm;
+ int32_t profile_version;
+} bluetooth_sdp_hdr;
+
+/**
+ * Some signals need additional pointers, hence we introduce a
+ * generic way to handle these pointers.
+ */
+typedef struct _bluetooth_sdp_hdr_overlay {
+ bluetooth_sdp_types type;
+ bt_uuid_t uuid;
+ uint32_t service_name_length;
+ char *service_name;
+ int32_t rfcomm_channel_number;
+ int32_t l2cap_psm;
+ int32_t profile_version;
+
+ // User pointers, only used for some signals - see bluetooth_sdp_ops_record
+ int user1_ptr_len;
+ uint8_t *user1_ptr;
+ int user2_ptr_len;
+ uint8_t *user2_ptr;
+} bluetooth_sdp_hdr_overlay;
+
+typedef struct _bluetooth_sdp_mas_record {
+ bluetooth_sdp_hdr_overlay hdr;
+ uint32_t mas_instance_id;
+ uint32_t supported_features;
+ uint32_t supported_message_types;
+} bluetooth_sdp_mas_record;
+
+typedef struct _bluetooth_sdp_mns_record {
+ bluetooth_sdp_hdr_overlay hdr;
+ uint32_t supported_features;
+} bluetooth_sdp_mns_record;
+
+typedef struct _bluetooth_sdp_pse_record {
+ bluetooth_sdp_hdr_overlay hdr;
+ uint32_t supported_features;
+ uint32_t supported_repositories;
+} bluetooth_sdp_pse_record;
+
+typedef struct _bluetooth_sdp_pce_record {
+ bluetooth_sdp_hdr_overlay hdr;
+} bluetooth_sdp_pce_record;
+
+typedef struct _bluetooth_sdp_ops_record {
+ bluetooth_sdp_hdr_overlay hdr;
+ int supported_formats_list_len;
+ uint8_t supported_formats_list[SDP_OPP_SUPPORTED_FORMATS_MAX_LENGTH];
+} bluetooth_sdp_ops_record;
+
+typedef struct _bluetooth_sdp_sap_record {
+ bluetooth_sdp_hdr_overlay hdr;
+} bluetooth_sdp_sap_record;
+
+typedef union {
+ bluetooth_sdp_hdr_overlay hdr;
+ bluetooth_sdp_mas_record mas;
+ bluetooth_sdp_mns_record mns;
+ bluetooth_sdp_pse_record pse;
+ bluetooth_sdp_pce_record pce;
+ bluetooth_sdp_ops_record ops;
+ bluetooth_sdp_sap_record sap;
+} bluetooth_sdp_record;
+
+
+/** Callback for SDP search */
+typedef void (*btsdp_search_callback)(bt_status_t status, bt_bdaddr_t *bd_addr, uint8_t* uuid, int num_records, bluetooth_sdp_record *records);
+
+typedef struct {
+ /** Set to sizeof(btsdp_callbacks_t) */
+ size_t size;
+ btsdp_search_callback sdp_search_cb;
+} btsdp_callbacks_t;
+
+typedef struct {
+ /** Set to size of this struct */
+ size_t size;
+
+ /** Register BT SDP search callbacks */
+ bt_status_t (*init)(btsdp_callbacks_t *callbacks);
+
+ /** Unregister BT SDP */
+ bt_status_t (*deinit)();
+
+ /** Search for SDP records with specific uuid on remote device */
+ bt_status_t (*sdp_search)(bt_bdaddr_t *bd_addr, const uint8_t* uuid);
+
+ /**
+ * Use listen in the socket interface to create rfcomm and/or l2cap PSM channels,
+ * (without UUID and service_name and set the BTSOCK_FLAG_NO_SDP flag in flags).
+ * Then use createSdpRecord to create the SDP record associated with the rfcomm/l2cap channels.
+ *
+ * Returns a handle to the SDP record, which can be parsed to remove_sdp_record.
+ *
+ * record (in) The SDP record to create
+ * record_handle (out)The corresponding record handle will be written to this pointer.
+ */
+ bt_status_t (*create_sdp_record)(bluetooth_sdp_record *record, int* record_handle);
+
+ /** Remove a SDP record created by createSdpRecord */
+ bt_status_t (*remove_sdp_record)(int sdp_handle);
+} btsdp_interface_t;
+
+__END_DECLS
+
diff --git a/libhardware/include/hardware/bt_sock.h b/libhardware/include/hardware/bt_sock.h
new file mode 100644
index 0000000..8d1a9e0
--- /dev/null
+++ b/libhardware/include/hardware/bt_sock.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+__BEGIN_DECLS
+
+#define BTSOCK_FLAG_ENCRYPT 1
+#define BTSOCK_FLAG_AUTH (1 << 1)
+#define BTSOCK_FLAG_NO_SDP (1 << 2)
+#define BTSOCK_FLAG_AUTH_MITM (1 << 3)
+#define BTSOCK_FLAG_AUTH_16_DIGIT (1 << 4)
+
+typedef enum {
+ BTSOCK_RFCOMM = 1,
+ BTSOCK_SCO = 2,
+ BTSOCK_L2CAP = 3
+} btsock_type_t;
+
+/** Represents the standard BT SOCKET interface. */
+typedef struct {
+ short size;
+ bt_bdaddr_t bd_addr;
+ int channel;
+ int status;
+
+ // The writer must make writes using a buffer of this maximum size
+ // to avoid loosing data. (L2CAP only)
+ unsigned short max_tx_packet_size;
+
+ // The reader must read using a buffer of at least this size to avoid
+ // loosing data. (L2CAP only)
+ unsigned short max_rx_packet_size;
+} __attribute__((packed)) sock_connect_signal_t;
+
+typedef struct {
+ /** set to size of this struct*/
+ size_t size;
+
+ /**
+ * Listen to a RFCOMM UUID or channel. It returns the socket fd from which
+ * btsock_connect_signal can be read out when a remote device connected.
+ * If neither a UUID nor a channel is provided, a channel will be allocated
+ * and a service record can be created providing the channel number to
+ * create_sdp_record(...) in bt_sdp.
+ * The callingUid is the UID of the application which is requesting the socket. This is
+ * used for traffic accounting purposes.
+ */
+ bt_status_t (*listen)(btsock_type_t type, const char* service_name,
+ const uint8_t* service_uuid, int channel, int* sock_fd, int flags, int callingUid);
+
+ /**
+ * Connect to a RFCOMM UUID channel of remote device, It returns the socket fd from which
+ * the btsock_connect_signal and a new socket fd to be accepted can be read out when connected.
+ * The callingUid is the UID of the application which is requesting the socket. This is
+ * used for traffic accounting purposes.
+ */
+ bt_status_t (*connect)(const bt_bdaddr_t *bd_addr, btsock_type_t type, const uint8_t* uuid,
+ int channel, int* sock_fd, int flags, int callingUid);
+} btsock_interface_t;
+
+__END_DECLS
+
diff --git a/libhardware/include/hardware/camera.h b/libhardware/include/hardware/camera.h
new file mode 100644
index 0000000..b1f18ff
--- /dev/null
+++ b/libhardware/include/hardware/camera.h
@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2010-2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_CAMERA_H
+#define ANDROID_INCLUDE_CAMERA_H
+
+#include "camera_common.h"
+
+/**
+ * Camera device HAL, initial version [ CAMERA_DEVICE_API_VERSION_1_0 ]
+ *
+ * DEPRECATED. New devices should use Camera HAL v3.2 or newer.
+ *
+ * Supports the android.hardware.Camera API, and the android.hardware.camera2
+ * API in legacy mode only.
+ *
+ * Camera devices that support this version of the HAL must return a value in
+ * the range HARDWARE_DEVICE_API_VERSION(0,0)-(1,FF) in
+ * camera_device_t.common.version. CAMERA_DEVICE_API_VERSION_1_0 is the
+ * recommended value.
+ *
+ * Camera modules that implement version 2.0 or higher of camera_module_t must
+ * also return the value of camera_device_t.common.version in
+ * camera_info_t.device_version.
+ *
+ * See camera_common.h for more details.
+ */
+
+__BEGIN_DECLS
+
+struct camera_memory;
+typedef void (*camera_release_memory)(struct camera_memory *mem);
+
+typedef struct camera_memory {
+ void *data;
+ size_t size;
+ void *handle;
+ camera_release_memory release;
+} camera_memory_t;
+
+typedef camera_memory_t* (*camera_request_memory)(int fd, size_t buf_size, unsigned int num_bufs,
+ void *user);
+
+typedef void (*camera_notify_callback)(int32_t msg_type,
+ int32_t ext1,
+ int32_t ext2,
+ void *user);
+
+typedef void (*camera_data_callback)(int32_t msg_type,
+ const camera_memory_t *data, unsigned int index,
+ camera_frame_metadata_t *metadata, void *user);
+
+typedef void (*camera_data_timestamp_callback)(int64_t timestamp,
+ int32_t msg_type,
+ const camera_memory_t *data, unsigned int index,
+ void *user);
+
+#define HAL_CAMERA_PREVIEW_WINDOW_TAG 0xcafed00d
+
+typedef struct preview_stream_ops {
+ int (*dequeue_buffer)(struct preview_stream_ops* w,
+ buffer_handle_t** buffer, int *stride);
+ int (*enqueue_buffer)(struct preview_stream_ops* w,
+ buffer_handle_t* buffer);
+ int (*cancel_buffer)(struct preview_stream_ops* w,
+ buffer_handle_t* buffer);
+ int (*set_buffer_count)(struct preview_stream_ops* w, int count);
+ int (*set_buffers_geometry)(struct preview_stream_ops* pw,
+ int w, int h, int format);
+ int (*set_crop)(struct preview_stream_ops *w,
+ int left, int top, int right, int bottom);
+ int (*set_usage)(struct preview_stream_ops* w, int usage);
+ int (*set_swap_interval)(struct preview_stream_ops *w, int interval);
+ int (*get_min_undequeued_buffer_count)(const struct preview_stream_ops *w,
+ int *count);
+ int (*lock_buffer)(struct preview_stream_ops* w,
+ buffer_handle_t* buffer);
+ // Timestamps are measured in nanoseconds, and must be comparable
+ // and monotonically increasing between two frames in the same
+ // preview stream. They do not need to be comparable between
+ // consecutive or parallel preview streams, cameras, or app runs.
+ int (*set_timestamp)(struct preview_stream_ops *w, int64_t timestamp);
+} preview_stream_ops_t;
+
+struct camera_device;
+typedef struct camera_device_ops {
+ /** Set the ANativeWindow to which preview frames are sent */
+ int (*set_preview_window)(struct camera_device *,
+ struct preview_stream_ops *window);
+
+ /** Set the notification and data callbacks */
+ void (*set_callbacks)(struct camera_device *,
+ camera_notify_callback notify_cb,
+ camera_data_callback data_cb,
+ camera_data_timestamp_callback data_cb_timestamp,
+ camera_request_memory get_memory,
+ void *user);
+
+ /**
+ * The following three functions all take a msg_type, which is a bitmask of
+ * the messages defined in include/ui/Camera.h
+ */
+
+ /**
+ * Enable a message, or set of messages.
+ */
+ void (*enable_msg_type)(struct camera_device *, int32_t msg_type);
+
+ /**
+ * Disable a message, or a set of messages.
+ *
+ * Once received a call to disableMsgType(CAMERA_MSG_VIDEO_FRAME), camera
+ * HAL should not rely on its client to call releaseRecordingFrame() to
+ * release video recording frames sent out by the cameral HAL before and
+ * after the disableMsgType(CAMERA_MSG_VIDEO_FRAME) call. Camera HAL
+ * clients must not modify/access any video recording frame after calling
+ * disableMsgType(CAMERA_MSG_VIDEO_FRAME).
+ */
+ void (*disable_msg_type)(struct camera_device *, int32_t msg_type);
+
+ /**
+ * Query whether a message, or a set of messages, is enabled. Note that
+ * this is operates as an AND, if any of the messages queried are off, this
+ * will return false.
+ */
+ int (*msg_type_enabled)(struct camera_device *, int32_t msg_type);
+
+ /**
+ * Start preview mode.
+ */
+ int (*start_preview)(struct camera_device *);
+
+ /**
+ * Stop a previously started preview.
+ */
+ void (*stop_preview)(struct camera_device *);
+
+ /**
+ * Returns true if preview is enabled.
+ */
+ int (*preview_enabled)(struct camera_device *);
+
+ /**
+ * Request the camera HAL to store meta data or real YUV data in the video
+ * buffers sent out via CAMERA_MSG_VIDEO_FRAME for a recording session. If
+ * it is not called, the default camera HAL behavior is to store real YUV
+ * data in the video buffers.
+ *
+ * This method should be called before startRecording() in order to be
+ * effective.
+ *
+ * If meta data is stored in the video buffers, it is up to the receiver of
+ * the video buffers to interpret the contents and to find the actual frame
+ * data with the help of the meta data in the buffer. How this is done is
+ * outside of the scope of this method.
+ *
+ * Some camera HALs may not support storing meta data in the video buffers,
+ * but all camera HALs should support storing real YUV data in the video
+ * buffers. If the camera HAL does not support storing the meta data in the
+ * video buffers when it is requested to do do, INVALID_OPERATION must be
+ * returned. It is very useful for the camera HAL to pass meta data rather
+ * than the actual frame data directly to the video encoder, since the
+ * amount of the uncompressed frame data can be very large if video size is
+ * large.
+ *
+ * @param enable if true to instruct the camera HAL to store
+ * meta data in the video buffers; false to instruct
+ * the camera HAL to store real YUV data in the video
+ * buffers.
+ *
+ * @return OK on success.
+ */
+ int (*store_meta_data_in_buffers)(struct camera_device *, int enable);
+
+ /**
+ * Start record mode. When a record image is available, a
+ * CAMERA_MSG_VIDEO_FRAME message is sent with the corresponding
+ * frame. Every record frame must be released by a camera HAL client via
+ * releaseRecordingFrame() before the client calls
+ * disableMsgType(CAMERA_MSG_VIDEO_FRAME). After the client calls
+ * disableMsgType(CAMERA_MSG_VIDEO_FRAME), it is the camera HAL's
+ * responsibility to manage the life-cycle of the video recording frames,
+ * and the client must not modify/access any video recording frames.
+ */
+ int (*start_recording)(struct camera_device *);
+
+ /**
+ * Stop a previously started recording.
+ */
+ void (*stop_recording)(struct camera_device *);
+
+ /**
+ * Returns true if recording is enabled.
+ */
+ int (*recording_enabled)(struct camera_device *);
+
+ /**
+ * Release a record frame previously returned by CAMERA_MSG_VIDEO_FRAME.
+ *
+ * It is camera HAL client's responsibility to release video recording
+ * frames sent out by the camera HAL before the camera HAL receives a call
+ * to disableMsgType(CAMERA_MSG_VIDEO_FRAME). After it receives the call to
+ * disableMsgType(CAMERA_MSG_VIDEO_FRAME), it is the camera HAL's
+ * responsibility to manage the life-cycle of the video recording frames.
+ */
+ void (*release_recording_frame)(struct camera_device *,
+ const void *opaque);
+
+ /**
+ * Start auto focus, the notification callback routine is called with
+ * CAMERA_MSG_FOCUS once when focusing is complete. autoFocus() will be
+ * called again if another auto focus is needed.
+ */
+ int (*auto_focus)(struct camera_device *);
+
+ /**
+ * Cancels auto-focus function. If the auto-focus is still in progress,
+ * this function will cancel it. Whether the auto-focus is in progress or
+ * not, this function will return the focus position to the default. If
+ * the camera does not support auto-focus, this is a no-op.
+ */
+ int (*cancel_auto_focus)(struct camera_device *);
+
+ /**
+ * Take a picture.
+ */
+ int (*take_picture)(struct camera_device *);
+
+ /**
+ * Cancel a picture that was started with takePicture. Calling this method
+ * when no picture is being taken is a no-op.
+ */
+ int (*cancel_picture)(struct camera_device *);
+
+ /**
+ * Set the camera parameters. This returns BAD_VALUE if any parameter is
+ * invalid or not supported.
+ */
+ int (*set_parameters)(struct camera_device *, const char *parms);
+
+ /** Retrieve the camera parameters. The buffer returned by the camera HAL
+ must be returned back to it with put_parameters, if put_parameters
+ is not NULL.
+ */
+ char *(*get_parameters)(struct camera_device *);
+
+ /** The camera HAL uses its own memory to pass us the parameters when we
+ call get_parameters. Use this function to return the memory back to
+ the camera HAL, if put_parameters is not NULL. If put_parameters
+ is NULL, then you have to use free() to release the memory.
+ */
+ void (*put_parameters)(struct camera_device *, char *);
+
+ /**
+ * Send command to camera driver.
+ */
+ int (*send_command)(struct camera_device *,
+ int32_t cmd, int32_t arg1, int32_t arg2);
+
+ /**
+ * Release the hardware resources owned by this object. Note that this is
+ * *not* done in the destructor.
+ */
+ void (*release)(struct camera_device *);
+
+ /**
+ * Dump state of the camera hardware
+ */
+ int (*dump)(struct camera_device *, int fd);
+} camera_device_ops_t;
+
+typedef struct camera_device {
+ /**
+ * camera_device.common.version must be in the range
+ * HARDWARE_DEVICE_API_VERSION(0,0)-(1,FF). CAMERA_DEVICE_API_VERSION_1_0 is
+ * recommended.
+ */
+ hw_device_t common;
+ camera_device_ops_t *ops;
+ void *priv;
+} camera_device_t;
+
+__END_DECLS
+
+#endif /* #ifdef ANDROID_INCLUDE_CAMERA_H */
diff --git a/libhardware/include/hardware/camera2.h b/libhardware/include/hardware/camera2.h
new file mode 100644
index 0000000..d920d4b
--- /dev/null
+++ b/libhardware/include/hardware/camera2.h
@@ -0,0 +1,839 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_CAMERA2_H
+#define ANDROID_INCLUDE_CAMERA2_H
+
+#include "camera_common.h"
+#include "system/camera_metadata.h"
+
+/**
+ * Camera device HAL 2.1 [ CAMERA_DEVICE_API_VERSION_2_0, CAMERA_DEVICE_API_VERSION_2_1 ]
+ *
+ * DEPRECATED. New devices should use Camera HAL v3.2 or newer.
+ *
+ * Supports the android.hardware.Camera API, and the android.hardware.camera2
+ * API in legacy mode only.
+ *
+ * Camera devices that support this version of the HAL must return
+ * CAMERA_DEVICE_API_VERSION_2_1 in camera_device_t.common.version and in
+ * camera_info_t.device_version (from camera_module_t.get_camera_info).
+ *
+ * Camera modules that may contain version 2.x devices must implement at least
+ * version 2.0 of the camera module interface (as defined by
+ * camera_module_t.common.module_api_version).
+ *
+ * See camera_common.h for more versioning details.
+ *
+ * Version history:
+ *
+ * 2.0: CAMERA_DEVICE_API_VERSION_2_0. Initial release (Android 4.2):
+ * - Sufficient for implementing existing android.hardware.Camera API.
+ * - Allows for ZSL queue in camera service layer
+ * - Not tested for any new features such manual capture control,
+ * Bayer RAW capture, reprocessing of RAW data.
+ *
+ * 2.1: CAMERA_DEVICE_API_VERSION_2_1. Support per-device static metadata:
+ * - Add get_instance_metadata() method to retrieve metadata that is fixed
+ * after device open, but may be variable between open() calls.
+ */
+
+__BEGIN_DECLS
+
+struct camera2_device;
+
+/**********************************************************************
+ *
+ * Input/output stream buffer queue interface definitions
+ *
+ */
+
+/**
+ * Output image stream queue interface. A set of these methods is provided to
+ * the HAL device in allocate_stream(), and are used to interact with the
+ * gralloc buffer queue for that stream. They may not be called until after
+ * allocate_stream returns.
+ */
+typedef struct camera2_stream_ops {
+ /**
+ * Get a buffer to fill from the queue. The size and format of the buffer
+ * are fixed for a given stream (defined in allocate_stream), and the stride
+ * should be queried from the platform gralloc module. The gralloc buffer
+ * will have been allocated based on the usage flags provided by
+ * allocate_stream, and will be locked for use.
+ */
+ int (*dequeue_buffer)(const struct camera2_stream_ops* w,
+ buffer_handle_t** buffer);
+
+ /**
+ * Push a filled buffer to the stream to be used by the consumer.
+ *
+ * The timestamp represents the time at start of exposure of the first row
+ * of the image; it must be from a monotonic clock, and is measured in
+ * nanoseconds. The timestamps do not need to be comparable between
+ * different cameras, or consecutive instances of the same camera. However,
+ * they must be comparable between streams from the same camera. If one
+ * capture produces buffers for multiple streams, each stream must have the
+ * same timestamp for that buffer, and that timestamp must match the
+ * timestamp in the output frame metadata.
+ */
+ int (*enqueue_buffer)(const struct camera2_stream_ops* w,
+ int64_t timestamp,
+ buffer_handle_t* buffer);
+ /**
+ * Return a buffer to the queue without marking it as filled.
+ */
+ int (*cancel_buffer)(const struct camera2_stream_ops* w,
+ buffer_handle_t* buffer);
+ /**
+ * Set the crop window for subsequently enqueued buffers. The parameters are
+ * measured in pixels relative to the buffer width and height.
+ */
+ int (*set_crop)(const struct camera2_stream_ops *w,
+ int left, int top, int right, int bottom);
+
+} camera2_stream_ops_t;
+
+/**
+ * Temporary definition during transition.
+ *
+ * These formats will be removed and replaced with
+ * HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED. To maximize forward compatibility,
+ * HAL implementations are strongly recommended to treat FORMAT_OPAQUE and
+ * FORMAT_ZSL as equivalent to HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, and
+ * return HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED in the format_actual output
+ * parameter of allocate_stream, allowing the gralloc module to select the
+ * specific format based on the usage flags from the camera and the stream
+ * consumer.
+ */
+enum {
+ CAMERA2_HAL_PIXEL_FORMAT_OPAQUE = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ CAMERA2_HAL_PIXEL_FORMAT_ZSL = -1
+};
+
+/**
+ * Transport header for compressed JPEG buffers in output streams.
+ *
+ * To capture JPEG images, a stream is created using the pixel format
+ * HAL_PIXEL_FORMAT_BLOB, and the static metadata field android.jpeg.maxSize is
+ * used as the buffer size. Since compressed JPEG images are of variable size,
+ * the HAL needs to include the final size of the compressed image using this
+ * structure inside the output stream buffer. The JPEG blob ID field must be set
+ * to CAMERA2_JPEG_BLOB_ID.
+ *
+ * Transport header should be at the end of the JPEG output stream buffer. That
+ * means the jpeg_blob_id must start at byte[android.jpeg.maxSize -
+ * sizeof(camera2_jpeg_blob)]. Any HAL using this transport header must
+ * account for it in android.jpeg.maxSize. The JPEG data itself starts at
+ * byte[0] and should be jpeg_size bytes long.
+ */
+typedef struct camera2_jpeg_blob {
+ uint16_t jpeg_blob_id;
+ uint32_t jpeg_size;
+};
+
+enum {
+ CAMERA2_JPEG_BLOB_ID = 0x00FF
+};
+
+/**
+ * Input reprocess stream queue management. A set of these methods is provided
+ * to the HAL device in allocate_reprocess_stream(); they are used to interact
+ * with the reprocess stream's input gralloc buffer queue.
+ */
+typedef struct camera2_stream_in_ops {
+ /**
+ * Get the next buffer of image data to reprocess. The width, height, and
+ * format of the buffer is fixed in allocate_reprocess_stream(), and the
+ * stride and other details should be queried from the platform gralloc
+ * module as needed. The buffer will already be locked for use.
+ */
+ int (*acquire_buffer)(const struct camera2_stream_in_ops *w,
+ buffer_handle_t** buffer);
+ /**
+ * Return a used buffer to the buffer queue for reuse.
+ */
+ int (*release_buffer)(const struct camera2_stream_in_ops *w,
+ buffer_handle_t* buffer);
+
+} camera2_stream_in_ops_t;
+
+/**********************************************************************
+ *
+ * Metadata queue management, used for requests sent to HAL module, and for
+ * frames produced by the HAL.
+ *
+ */
+
+enum {
+ CAMERA2_REQUEST_QUEUE_IS_BOTTOMLESS = -1
+};
+
+/**
+ * Request input queue protocol:
+ *
+ * The framework holds the queue and its contents. At start, the queue is empty.
+ *
+ * 1. When the first metadata buffer is placed into the queue, the framework
+ * signals the device by calling notify_request_queue_not_empty().
+ *
+ * 2. After receiving notify_request_queue_not_empty, the device must call
+ * dequeue() once it's ready to handle the next buffer.
+ *
+ * 3. Once the device has processed a buffer, and is ready for the next buffer,
+ * it must call dequeue() again instead of waiting for a notification. If
+ * there are no more buffers available, dequeue() will return NULL. After
+ * this point, when a buffer becomes available, the framework must call
+ * notify_request_queue_not_empty() again. If the device receives a NULL
+ * return from dequeue, it does not need to query the queue again until a
+ * notify_request_queue_not_empty() call is received from the source.
+ *
+ * 4. If the device calls buffer_count() and receives 0, this does not mean that
+ * the framework will provide a notify_request_queue_not_empty() call. The
+ * framework will only provide such a notification after the device has
+ * received a NULL from dequeue, or on initial startup.
+ *
+ * 5. The dequeue() call in response to notify_request_queue_not_empty() may be
+ * on the same thread as the notify_request_queue_not_empty() call, and may
+ * be performed from within the notify call.
+ *
+ * 6. All dequeued request buffers must be returned to the framework by calling
+ * free_request, including when errors occur, a device flush is requested, or
+ * when the device is shutting down.
+ */
+typedef struct camera2_request_queue_src_ops {
+ /**
+ * Get the count of request buffers pending in the queue. May return
+ * CAMERA2_REQUEST_QUEUE_IS_BOTTOMLESS if a repeating request (stream
+ * request) is currently configured. Calling this method has no effect on
+ * whether the notify_request_queue_not_empty() method will be called by the
+ * framework.
+ */
+ int (*request_count)(const struct camera2_request_queue_src_ops *q);
+
+ /**
+ * Get a metadata buffer from the framework. Returns OK if there is no
+ * error. If the queue is empty, returns NULL in buffer. In that case, the
+ * device must wait for a notify_request_queue_not_empty() message before
+ * attempting to dequeue again. Buffers obtained in this way must be
+ * returned to the framework with free_request().
+ */
+ int (*dequeue_request)(const struct camera2_request_queue_src_ops *q,
+ camera_metadata_t **buffer);
+ /**
+ * Return a metadata buffer to the framework once it has been used, or if
+ * an error or shutdown occurs.
+ */
+ int (*free_request)(const struct camera2_request_queue_src_ops *q,
+ camera_metadata_t *old_buffer);
+
+} camera2_request_queue_src_ops_t;
+
+/**
+ * Frame output queue protocol:
+ *
+ * The framework holds the queue and its contents. At start, the queue is empty.
+ *
+ * 1. When the device is ready to fill an output metadata frame, it must dequeue
+ * a metadata buffer of the required size.
+ *
+ * 2. It should then fill the metadata buffer, and place it on the frame queue
+ * using enqueue_frame. The framework takes ownership of the frame.
+ *
+ * 3. In case of an error, a request to flush the pipeline, or shutdown, the
+ * device must return any affected dequeued frames to the framework by
+ * calling cancel_frame.
+ */
+typedef struct camera2_frame_queue_dst_ops {
+ /**
+ * Get an empty metadata buffer to fill from the framework. The new metadata
+ * buffer will have room for entries number of metadata entries, plus
+ * data_bytes worth of extra storage. Frames dequeued here must be returned
+ * to the framework with either cancel_frame or enqueue_frame.
+ */
+ int (*dequeue_frame)(const struct camera2_frame_queue_dst_ops *q,
+ size_t entries, size_t data_bytes,
+ camera_metadata_t **buffer);
+
+ /**
+ * Return a dequeued metadata buffer to the framework for reuse; do not mark it as
+ * filled. Use when encountering errors, or flushing the internal request queue.
+ */
+ int (*cancel_frame)(const struct camera2_frame_queue_dst_ops *q,
+ camera_metadata_t *buffer);
+
+ /**
+ * Place a completed metadata frame on the frame output queue.
+ */
+ int (*enqueue_frame)(const struct camera2_frame_queue_dst_ops *q,
+ camera_metadata_t *buffer);
+
+} camera2_frame_queue_dst_ops_t;
+
+/**********************************************************************
+ *
+ * Notification callback and message definition, and trigger definitions
+ *
+ */
+
+/**
+ * Asynchronous notification callback from the HAL, fired for various
+ * reasons. Only for information independent of frame capture, or that require
+ * specific timing. The user pointer must be the same one that was passed to the
+ * device in set_notify_callback().
+ */
+typedef void (*camera2_notify_callback)(int32_t msg_type,
+ int32_t ext1,
+ int32_t ext2,
+ int32_t ext3,
+ void *user);
+
+/**
+ * Possible message types for camera2_notify_callback
+ */
+enum {
+ /**
+ * An error has occurred. Argument ext1 contains the error code, and
+ * ext2 and ext3 contain any error-specific information.
+ */
+ CAMERA2_MSG_ERROR = 0x0001,
+ /**
+ * The exposure of a given request has begun. Argument ext1 contains the
+ * frame number, and ext2 and ext3 contain the low-order and high-order
+ * bytes of the timestamp for when exposure began.
+ * (timestamp = (ext3 << 32 | ext2))
+ */
+ CAMERA2_MSG_SHUTTER = 0x0010,
+ /**
+ * The autofocus routine has changed state. Argument ext1 contains the new
+ * state; the values are the same as those for the metadata field
+ * android.control.afState. Ext2 contains the latest trigger ID passed to
+ * trigger_action(CAMERA2_TRIGGER_AUTOFOCUS) or
+ * trigger_action(CAMERA2_TRIGGER_CANCEL_AUTOFOCUS), or 0 if trigger has not
+ * been called with either of those actions.
+ */
+ CAMERA2_MSG_AUTOFOCUS = 0x0020,
+ /**
+ * The autoexposure routine has changed state. Argument ext1 contains the
+ * new state; the values are the same as those for the metadata field
+ * android.control.aeState. Ext2 contains the latest trigger ID value passed to
+ * trigger_action(CAMERA2_TRIGGER_PRECAPTURE_METERING), or 0 if that method
+ * has not been called.
+ */
+ CAMERA2_MSG_AUTOEXPOSURE = 0x0021,
+ /**
+ * The auto-whitebalance routine has changed state. Argument ext1 contains
+ * the new state; the values are the same as those for the metadata field
+ * android.control.awbState. Ext2 contains the latest trigger ID passed to
+ * trigger_action(CAMERA2_TRIGGER_PRECAPTURE_METERING), or 0 if that method
+ * has not been called.
+ */
+ CAMERA2_MSG_AUTOWB = 0x0022
+};
+
+/**
+ * Error codes for CAMERA_MSG_ERROR
+ */
+enum {
+ /**
+ * A serious failure occured. Camera device may not work without reboot, and
+ * no further frames or buffer streams will be produced by the
+ * device. Device should be treated as closed.
+ */
+ CAMERA2_MSG_ERROR_HARDWARE = 0x0001,
+ /**
+ * A serious failure occured. No further frames or buffer streams will be
+ * produced by the device. Device should be treated as closed. The client
+ * must reopen the device to use it again.
+ */
+ CAMERA2_MSG_ERROR_DEVICE,
+ /**
+ * An error has occurred in processing a request. No output (metadata or
+ * buffers) will be produced for this request. ext2 contains the frame
+ * number of the request. Subsequent requests are unaffected, and the device
+ * remains operational.
+ */
+ CAMERA2_MSG_ERROR_REQUEST,
+ /**
+ * An error has occurred in producing an output frame metadata buffer for a
+ * request, but image buffers for it will still be available. Subsequent
+ * requests are unaffected, and the device remains operational. ext2
+ * contains the frame number of the request.
+ */
+ CAMERA2_MSG_ERROR_FRAME,
+ /**
+ * An error has occurred in placing an output buffer into a stream for a
+ * request. The frame metadata and other buffers may still be
+ * available. Subsequent requests are unaffected, and the device remains
+ * operational. ext2 contains the frame number of the request, and ext3
+ * contains the stream id.
+ */
+ CAMERA2_MSG_ERROR_STREAM,
+ /**
+ * Number of error types
+ */
+ CAMERA2_MSG_NUM_ERRORS
+};
+
+/**
+ * Possible trigger ids for trigger_action()
+ */
+enum {
+ /**
+ * Trigger an autofocus cycle. The effect of the trigger depends on the
+ * autofocus mode in effect when the trigger is received, which is the mode
+ * listed in the latest capture request to be dequeued by the HAL. If the
+ * mode is OFF, EDOF, or FIXED, the trigger has no effect. In AUTO, MACRO,
+ * or CONTINUOUS_* modes, see below for the expected behavior. The state of
+ * the autofocus cycle can be tracked in android.control.afMode and the
+ * corresponding notifications.
+ *
+ **
+ * In AUTO or MACRO mode, the AF state transitions (and notifications)
+ * when calling with trigger ID = N with the previous ID being K are:
+ *
+ * Initial state Transitions
+ * INACTIVE (K) -> ACTIVE_SCAN (N) -> AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * AF_FOCUSED (K) -> ACTIVE_SCAN (N) -> AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * AF_NOT_FOCUSED (K) -> ACTIVE_SCAN (N) -> AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * ACTIVE_SCAN (K) -> AF_FOCUSED(N) or AF_NOT_FOCUSED(N)
+ * PASSIVE_SCAN (K) Not used in AUTO/MACRO mode
+ * PASSIVE_FOCUSED (K) Not used in AUTO/MACRO mode
+ *
+ **
+ * In CONTINUOUS_PICTURE mode, triggering AF must lock the AF to the current
+ * lens position and transition the AF state to either AF_FOCUSED or
+ * NOT_FOCUSED. If a passive scan is underway, that scan must complete and
+ * then lock the lens position and change AF state. TRIGGER_CANCEL_AUTOFOCUS
+ * will allow the AF to restart its operation.
+ *
+ * Initial state Transitions
+ * INACTIVE (K) -> immediate AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * PASSIVE_FOCUSED (K) -> immediate AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * PASSIVE_SCAN (K) -> AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * AF_FOCUSED (K) no effect except to change next notification ID to N
+ * AF_NOT_FOCUSED (K) no effect except to change next notification ID to N
+ *
+ **
+ * In CONTINUOUS_VIDEO mode, triggering AF must lock the AF to the current
+ * lens position and transition the AF state to either AF_FOCUSED or
+ * NOT_FOCUSED. If a passive scan is underway, it must immediately halt, in
+ * contrast with CONTINUOUS_PICTURE mode. TRIGGER_CANCEL_AUTOFOCUS will
+ * allow the AF to restart its operation.
+ *
+ * Initial state Transitions
+ * INACTIVE (K) -> immediate AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * PASSIVE_FOCUSED (K) -> immediate AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * PASSIVE_SCAN (K) -> immediate AF_FOCUSED (N) or AF_NOT_FOCUSED (N)
+ * AF_FOCUSED (K) no effect except to change next notification ID to N
+ * AF_NOT_FOCUSED (K) no effect except to change next notification ID to N
+ *
+ * Ext1 is an ID that must be returned in subsequent auto-focus state change
+ * notifications through camera2_notify_callback() and stored in
+ * android.control.afTriggerId.
+ */
+ CAMERA2_TRIGGER_AUTOFOCUS = 0x0001,
+ /**
+ * Send a cancel message to the autofocus algorithm. The effect of the
+ * cancellation depends on the autofocus mode in effect when the trigger is
+ * received, which is the mode listed in the latest capture request to be
+ * dequeued by the HAL. If the AF mode is OFF or EDOF, the cancel has no
+ * effect. For other modes, the lens should return to its default position,
+ * any current autofocus scan must be canceled, and the AF state should be
+ * set to INACTIVE.
+ *
+ * The state of the autofocus cycle can be tracked in android.control.afMode
+ * and the corresponding notification. Continuous autofocus modes may resume
+ * focusing operations thereafter exactly as if the camera had just been set
+ * to a continuous AF mode.
+ *
+ * Ext1 is an ID that must be returned in subsequent auto-focus state change
+ * notifications through camera2_notify_callback() and stored in
+ * android.control.afTriggerId.
+ */
+ CAMERA2_TRIGGER_CANCEL_AUTOFOCUS,
+ /**
+ * Trigger a pre-capture metering cycle, which may include firing the flash
+ * to determine proper capture parameters. Typically, this trigger would be
+ * fired for a half-depress of a camera shutter key, or before a snapshot
+ * capture in general. The state of the metering cycle can be tracked in
+ * android.control.aeMode and the corresponding notification. If the
+ * auto-exposure mode is OFF, the trigger does nothing.
+ *
+ * Ext1 is an ID that must be returned in subsequent
+ * auto-exposure/auto-white balance state change notifications through
+ * camera2_notify_callback() and stored in android.control.aePrecaptureId.
+ */
+ CAMERA2_TRIGGER_PRECAPTURE_METERING
+};
+
+/**
+ * Possible template types for construct_default_request()
+ */
+enum {
+ /**
+ * Standard camera preview operation with 3A on auto.
+ */
+ CAMERA2_TEMPLATE_PREVIEW = 1,
+ /**
+ * Standard camera high-quality still capture with 3A and flash on auto.
+ */
+ CAMERA2_TEMPLATE_STILL_CAPTURE,
+ /**
+ * Standard video recording plus preview with 3A on auto, torch off.
+ */
+ CAMERA2_TEMPLATE_VIDEO_RECORD,
+ /**
+ * High-quality still capture while recording video. Application will
+ * include preview, video record, and full-resolution YUV or JPEG streams in
+ * request. Must not cause stuttering on video stream. 3A on auto.
+ */
+ CAMERA2_TEMPLATE_VIDEO_SNAPSHOT,
+ /**
+ * Zero-shutter-lag mode. Application will request preview and
+ * full-resolution data for each frame, and reprocess it to JPEG when a
+ * still image is requested by user. Settings should provide highest-quality
+ * full-resolution images without compromising preview frame rate. 3A on
+ * auto.
+ */
+ CAMERA2_TEMPLATE_ZERO_SHUTTER_LAG,
+
+ /* Total number of templates */
+ CAMERA2_TEMPLATE_COUNT
+};
+
+
+/**********************************************************************
+ *
+ * Camera device operations
+ *
+ */
+typedef struct camera2_device_ops {
+
+ /**********************************************************************
+ * Request and frame queue setup and management methods
+ */
+
+ /**
+ * Pass in input request queue interface methods.
+ */
+ int (*set_request_queue_src_ops)(const struct camera2_device *,
+ const camera2_request_queue_src_ops_t *request_src_ops);
+
+ /**
+ * Notify device that the request queue is no longer empty. Must only be
+ * called when the first buffer is added a new queue, or after the source
+ * has returned NULL in response to a dequeue call.
+ */
+ int (*notify_request_queue_not_empty)(const struct camera2_device *);
+
+ /**
+ * Pass in output frame queue interface methods
+ */
+ int (*set_frame_queue_dst_ops)(const struct camera2_device *,
+ const camera2_frame_queue_dst_ops_t *frame_dst_ops);
+
+ /**
+ * Number of camera requests being processed by the device at the moment
+ * (captures/reprocesses that have had their request dequeued, but have not
+ * yet been enqueued onto output pipeline(s) ). No streams may be released
+ * by the framework until the in-progress count is 0.
+ */
+ int (*get_in_progress_count)(const struct camera2_device *);
+
+ /**
+ * Flush all in-progress captures. This includes all dequeued requests
+ * (regular or reprocessing) that have not yet placed any outputs into a
+ * stream or the frame queue. Partially completed captures must be completed
+ * normally. No new requests may be dequeued from the request queue until
+ * the flush completes.
+ */
+ int (*flush_captures_in_progress)(const struct camera2_device *);
+
+ /**
+ * Create a filled-in default request for standard camera use cases.
+ *
+ * The device must return a complete request that is configured to meet the
+ * requested use case, which must be one of the CAMERA2_TEMPLATE_*
+ * enums. All request control fields must be included, except for
+ * android.request.outputStreams.
+ *
+ * The metadata buffer returned must be allocated with
+ * allocate_camera_metadata. The framework takes ownership of the buffer.
+ */
+ int (*construct_default_request)(const struct camera2_device *,
+ int request_template,
+ camera_metadata_t **request);
+
+ /**********************************************************************
+ * Stream management
+ */
+
+ /**
+ * allocate_stream:
+ *
+ * Allocate a new output stream for use, defined by the output buffer width,
+ * height, target, and possibly the pixel format. Returns the new stream's
+ * ID, gralloc usage flags, minimum queue buffer count, and possibly the
+ * pixel format, on success. Error conditions:
+ *
+ * - Requesting a width/height/format combination not listed as
+ * supported by the sensor's static characteristics
+ *
+ * - Asking for too many streams of a given format type (2 bayer raw
+ * streams, for example).
+ *
+ * Input parameters:
+ *
+ * - width, height, format: Specification for the buffers to be sent through
+ * this stream. Format is a value from the HAL_PIXEL_FORMAT_* list. If
+ * HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED is used, then the platform
+ * gralloc module will select a format based on the usage flags provided
+ * by the camera HAL and the consumer of the stream. The camera HAL should
+ * inspect the buffers handed to it in the register_stream_buffers call to
+ * obtain the implementation-specific format if necessary.
+ *
+ * - stream_ops: A structure of function pointers for obtaining and queuing
+ * up buffers for this stream. The underlying stream will be configured
+ * based on the usage and max_buffers outputs. The methods in this
+ * structure may not be called until after allocate_stream returns.
+ *
+ * Output parameters:
+ *
+ * - stream_id: An unsigned integer identifying this stream. This value is
+ * used in incoming requests to identify the stream, and in releasing the
+ * stream.
+ *
+ * - usage: The gralloc usage mask needed by the HAL device for producing
+ * the requested type of data. This is used in allocating new gralloc
+ * buffers for the stream buffer queue.
+ *
+ * - max_buffers: The maximum number of buffers the HAL device may need to
+ * have dequeued at the same time. The device may not dequeue more buffers
+ * than this value at the same time.
+ *
+ */
+ int (*allocate_stream)(
+ const struct camera2_device *,
+ // inputs
+ uint32_t width,
+ uint32_t height,
+ int format,
+ const camera2_stream_ops_t *stream_ops,
+ // outputs
+ uint32_t *stream_id,
+ uint32_t *format_actual, // IGNORED, will be removed
+ uint32_t *usage,
+ uint32_t *max_buffers);
+
+ /**
+ * Register buffers for a given stream. This is called after a successful
+ * allocate_stream call, and before the first request referencing the stream
+ * is enqueued. This method is intended to allow the HAL device to map or
+ * otherwise prepare the buffers for later use. num_buffers is guaranteed to
+ * be at least max_buffers (from allocate_stream), but may be larger. The
+ * buffers will already be locked for use. At the end of the call, all the
+ * buffers must be ready to be returned to the queue. If the stream format
+ * was set to HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, the camera HAL should
+ * inspect the passed-in buffers here to determine any platform-private
+ * pixel format information.
+ */
+ int (*register_stream_buffers)(
+ const struct camera2_device *,
+ uint32_t stream_id,
+ int num_buffers,
+ buffer_handle_t *buffers);
+
+ /**
+ * Release a stream. Returns an error if called when get_in_progress_count
+ * is non-zero, or if the stream id is invalid.
+ */
+ int (*release_stream)(
+ const struct camera2_device *,
+ uint32_t stream_id);
+
+ /**
+ * allocate_reprocess_stream:
+ *
+ * Allocate a new input stream for use, defined by the output buffer width,
+ * height, and the pixel format. Returns the new stream's ID, gralloc usage
+ * flags, and required simultaneously acquirable buffer count, on
+ * success. Error conditions:
+ *
+ * - Requesting a width/height/format combination not listed as
+ * supported by the sensor's static characteristics
+ *
+ * - Asking for too many reprocessing streams to be configured at once.
+ *
+ * Input parameters:
+ *
+ * - width, height, format: Specification for the buffers to be sent through
+ * this stream. Format must be a value from the HAL_PIXEL_FORMAT_* list.
+ *
+ * - reprocess_stream_ops: A structure of function pointers for acquiring
+ * and releasing buffers for this stream. The underlying stream will be
+ * configured based on the usage and max_buffers outputs.
+ *
+ * Output parameters:
+ *
+ * - stream_id: An unsigned integer identifying this stream. This value is
+ * used in incoming requests to identify the stream, and in releasing the
+ * stream. These ids are numbered separately from the input stream ids.
+ *
+ * - consumer_usage: The gralloc usage mask needed by the HAL device for
+ * consuming the requested type of data. This is used in allocating new
+ * gralloc buffers for the stream buffer queue.
+ *
+ * - max_buffers: The maximum number of buffers the HAL device may need to
+ * have acquired at the same time. The device may not have more buffers
+ * acquired at the same time than this value.
+ *
+ */
+ int (*allocate_reprocess_stream)(const struct camera2_device *,
+ uint32_t width,
+ uint32_t height,
+ uint32_t format,
+ const camera2_stream_in_ops_t *reprocess_stream_ops,
+ // outputs
+ uint32_t *stream_id,
+ uint32_t *consumer_usage,
+ uint32_t *max_buffers);
+
+ /**
+ * allocate_reprocess_stream_from_stream:
+ *
+ * Allocate a new input stream for use, which will use the buffers allocated
+ * for an existing output stream. That is, after the HAL enqueues a buffer
+ * onto the output stream, it may see that same buffer handed to it from
+ * this input reprocessing stream. After the HAL releases the buffer back to
+ * the reprocessing stream, it will be returned to the output queue for
+ * reuse.
+ *
+ * Error conditions:
+ *
+ * - Using an output stream of unsuitable size/format for the basis of the
+ * reprocessing stream.
+ *
+ * - Attempting to allocatee too many reprocessing streams at once.
+ *
+ * Input parameters:
+ *
+ * - output_stream_id: The ID of an existing output stream which has
+ * a size and format suitable for reprocessing.
+ *
+ * - reprocess_stream_ops: A structure of function pointers for acquiring
+ * and releasing buffers for this stream. The underlying stream will use
+ * the same graphics buffer handles as the output stream uses.
+ *
+ * Output parameters:
+ *
+ * - stream_id: An unsigned integer identifying this stream. This value is
+ * used in incoming requests to identify the stream, and in releasing the
+ * stream. These ids are numbered separately from the input stream ids.
+ *
+ * The HAL client must always release the reprocessing stream before it
+ * releases the output stream it is based on.
+ *
+ */
+ int (*allocate_reprocess_stream_from_stream)(const struct camera2_device *,
+ uint32_t output_stream_id,
+ const camera2_stream_in_ops_t *reprocess_stream_ops,
+ // outputs
+ uint32_t *stream_id);
+
+ /**
+ * Release a reprocessing stream. Returns an error if called when
+ * get_in_progress_count is non-zero, or if the stream id is not
+ * valid.
+ */
+ int (*release_reprocess_stream)(
+ const struct camera2_device *,
+ uint32_t stream_id);
+
+ /**********************************************************************
+ * Miscellaneous methods
+ */
+
+ /**
+ * Trigger asynchronous activity. This is used for triggering special
+ * behaviors of the camera 3A routines when they are in use. See the
+ * documentation for CAMERA2_TRIGGER_* above for details of the trigger ids
+ * and their arguments.
+ */
+ int (*trigger_action)(const struct camera2_device *,
+ uint32_t trigger_id,
+ int32_t ext1,
+ int32_t ext2);
+
+ /**
+ * Notification callback setup
+ */
+ int (*set_notify_callback)(const struct camera2_device *,
+ camera2_notify_callback notify_cb,
+ void *user);
+
+ /**
+ * Get methods to query for vendor extension metadata tag infomation. May
+ * set ops to NULL if no vendor extension tags are defined.
+ */
+ int (*get_metadata_vendor_tag_ops)(const struct camera2_device*,
+ vendor_tag_query_ops_t **ops);
+
+ /**
+ * Dump state of the camera hardware
+ */
+ int (*dump)(const struct camera2_device *, int fd);
+
+ /**
+ * Get device-instance-specific metadata. This metadata must be constant for
+ * a single instance of the camera device, but may be different between
+ * open() calls. The returned camera_metadata pointer must be valid until
+ * the device close() method is called.
+ *
+ * Version information:
+ *
+ * CAMERA_DEVICE_API_VERSION_2_0:
+ *
+ * Not available. Framework may not access this function pointer.
+ *
+ * CAMERA_DEVICE_API_VERSION_2_1:
+ *
+ * Valid. Can be called by the framework.
+ *
+ */
+ int (*get_instance_metadata)(const struct camera2_device *,
+ camera_metadata **instance_metadata);
+
+} camera2_device_ops_t;
+
+/**********************************************************************
+ *
+ * Camera device definition
+ *
+ */
+typedef struct camera2_device {
+ /**
+ * common.version must equal CAMERA_DEVICE_API_VERSION_2_0 to identify
+ * this device as implementing version 2.0 of the camera device HAL.
+ */
+ hw_device_t common;
+ camera2_device_ops_t *ops;
+ void *priv;
+} camera2_device_t;
+
+__END_DECLS
+
+#endif /* #ifdef ANDROID_INCLUDE_CAMERA2_H */
diff --git a/libhardware/include/hardware/camera3.h b/libhardware/include/hardware/camera3.h
new file mode 100644
index 0000000..3ef6d6f
--- /dev/null
+++ b/libhardware/include/hardware/camera3.h
@@ -0,0 +1,3077 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_CAMERA3_H
+#define ANDROID_INCLUDE_CAMERA3_H
+
+#include <system/camera_metadata.h>
+#include "camera_common.h"
+
+/**
+ * Camera device HAL 3.3 [ CAMERA_DEVICE_API_VERSION_3_3 ]
+ *
+ * This is the current recommended version of the camera device HAL.
+ *
+ * Supports the android.hardware.Camera API, and as of v3.2, the
+ * android.hardware.camera2 API in LIMITED or FULL modes.
+ *
+ * Camera devices that support this version of the HAL must return
+ * CAMERA_DEVICE_API_VERSION_3_3 in camera_device_t.common.version and in
+ * camera_info_t.device_version (from camera_module_t.get_camera_info).
+ *
+ * CAMERA_DEVICE_API_VERSION_3_3:
+ * Camera modules that may contain version 3.3 devices must implement at
+ * least version 2.2 of the camera module interface (as defined by
+ * camera_module_t.common.module_api_version).
+ *
+ * CAMERA_DEVICE_API_VERSION_3_2:
+ * Camera modules that may contain version 3.2 devices must implement at
+ * least version 2.2 of the camera module interface (as defined by
+ * camera_module_t.common.module_api_version).
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ * Camera modules that may contain version 3.1 (or 3.0) devices must
+ * implement at least version 2.0 of the camera module interface
+ * (as defined by camera_module_t.common.module_api_version).
+ *
+ * See camera_common.h for more versioning details.
+ *
+ * Documentation index:
+ * S1. Version history
+ * S2. Startup and operation sequencing
+ * S3. Operational modes
+ * S4. 3A modes and state machines
+ * S5. Cropping
+ * S6. Error management
+ * S7. Key Performance Indicator (KPI) glossary
+ * S8. Sample Use Cases
+ * S9. Notes on Controls and Metadata
+ * S10. Reprocessing flow and controls
+ */
+
+/**
+ * S1. Version history:
+ *
+ * 1.0: Initial Android camera HAL (Android 4.0) [camera.h]:
+ *
+ * - Converted from C++ CameraHardwareInterface abstraction layer.
+ *
+ * - Supports android.hardware.Camera API.
+ *
+ * 2.0: Initial release of expanded-capability HAL (Android 4.2) [camera2.h]:
+ *
+ * - Sufficient for implementing existing android.hardware.Camera API.
+ *
+ * - Allows for ZSL queue in camera service layer
+ *
+ * - Not tested for any new features such manual capture control, Bayer RAW
+ * capture, reprocessing of RAW data.
+ *
+ * 3.0: First revision of expanded-capability HAL:
+ *
+ * - Major version change since the ABI is completely different. No change to
+ * the required hardware capabilities or operational model from 2.0.
+ *
+ * - Reworked input request and stream queue interfaces: Framework calls into
+ * HAL with next request and stream buffers already dequeued. Sync framework
+ * support is included, necessary for efficient implementations.
+ *
+ * - Moved triggers into requests, most notifications into results.
+ *
+ * - Consolidated all callbacks into framework into one structure, and all
+ * setup methods into a single initialize() call.
+ *
+ * - Made stream configuration into a single call to simplify stream
+ * management. Bidirectional streams replace STREAM_FROM_STREAM construct.
+ *
+ * - Limited mode semantics for older/limited hardware devices.
+ *
+ * 3.1: Minor revision of expanded-capability HAL:
+ *
+ * - configure_streams passes consumer usage flags to the HAL.
+ *
+ * - flush call to drop all in-flight requests/buffers as fast as possible.
+ *
+ * 3.2: Minor revision of expanded-capability HAL:
+ *
+ * - Deprecates get_metadata_vendor_tag_ops. Please use get_vendor_tag_ops
+ * in camera_common.h instead.
+ *
+ * - register_stream_buffers deprecated. All gralloc buffers provided
+ * by framework to HAL in process_capture_request may be new at any time.
+ *
+ * - add partial result support. process_capture_result may be called
+ * multiple times with a subset of the available result before the full
+ * result is available.
+ *
+ * - add manual template to camera3_request_template. The applications may
+ * use this template to control the capture settings directly.
+ *
+ * - Rework the bidirectional and input stream specifications.
+ *
+ * - change the input buffer return path. The buffer is returned in
+ * process_capture_result instead of process_capture_request.
+ *
+ * 3.3: Minor revision of expanded-capability HAL:
+ *
+ * - OPAQUE and YUV reprocessing API updates.
+ *
+ * - Basic support for depth output buffers.
+ *
+ * - Addition of data_space field to camera3_stream_t.
+ *
+ * - Addition of rotation field to camera3_stream_t.
+ *
+ * - Addition of camera3 stream configuration operation mode to camera3_stream_configuration_t
+ *
+ */
+
+/**
+ * S2. Startup and general expected operation sequence:
+ *
+ * 1. Framework calls camera_module_t->common.open(), which returns a
+ * hardware_device_t structure.
+ *
+ * 2. Framework inspects the hardware_device_t->version field, and instantiates
+ * the appropriate handler for that version of the camera hardware device. In
+ * case the version is CAMERA_DEVICE_API_VERSION_3_0, the device is cast to
+ * a camera3_device_t.
+ *
+ * 3. Framework calls camera3_device_t->ops->initialize() with the framework
+ * callback function pointers. This will only be called this one time after
+ * open(), before any other functions in the ops structure are called.
+ *
+ * 4. The framework calls camera3_device_t->ops->configure_streams() with a list
+ * of input/output streams to the HAL device.
+ *
+ * 5. <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * The framework allocates gralloc buffers and calls
+ * camera3_device_t->ops->register_stream_buffers() for at least one of the
+ * output streams listed in configure_streams. The same stream is registered
+ * only once.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * camera3_device_t->ops->register_stream_buffers() is not called and must
+ * be NULL.
+ *
+ * 6. The framework requests default settings for some number of use cases with
+ * calls to camera3_device_t->ops->construct_default_request_settings(). This
+ * may occur any time after step 3.
+ *
+ * 7. The framework constructs and sends the first capture request to the HAL,
+ * with settings based on one of the sets of default settings, and with at
+ * least one output stream, which has been registered earlier by the
+ * framework. This is sent to the HAL with
+ * camera3_device_t->ops->process_capture_request(). The HAL must block the
+ * return of this call until it is ready for the next request to be sent.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * The buffer_handle_t provided in the camera3_stream_buffer_t array
+ * in the camera3_capture_request_t may be new and never-before-seen
+ * by the HAL on any given new request.
+ *
+ * 8. The framework continues to submit requests, and call
+ * construct_default_request_settings to get default settings buffers for
+ * other use cases.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * The framework may call register_stream_buffers() at this time for
+ * not-yet-registered streams.
+ *
+ * 9. When the capture of a request begins (sensor starts exposing for the
+ * capture) or processing a reprocess request begins, the HAL
+ * calls camera3_callback_ops_t->notify() with the SHUTTER event, including
+ * the frame number and the timestamp for start of exposure. For a reprocess
+ * request, the timestamp must be the start of exposure of the input image
+ * which can be looked up with android.sensor.timestamp from
+ * camera3_capture_request_t.settings when process_capture_request() is
+ * called.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * This notify call must be made before the first call to
+ * process_capture_result() for that frame number.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * The camera3_callback_ops_t->notify() call with the SHUTTER event should
+ * be made as early as possible since the framework will be unable to
+ * deliver gralloc buffers to the application layer (for that frame) until
+ * it has a valid timestamp for the start of exposure (or the input image's
+ * start of exposure for a reprocess request).
+ *
+ * Both partial metadata results and the gralloc buffers may be sent to the
+ * framework at any time before or after the SHUTTER event.
+ *
+ * 10. After some pipeline delay, the HAL begins to return completed captures to
+ * the framework with camera3_callback_ops_t->process_capture_result(). These
+ * are returned in the same order as the requests were submitted. Multiple
+ * requests can be in flight at once, depending on the pipeline depth of the
+ * camera HAL device.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Once a buffer is returned by process_capture_result as part of the
+ * camera3_stream_buffer_t array, and the fence specified by release_fence
+ * has been signaled (this is a no-op for -1 fences), the ownership of that
+ * buffer is considered to be transferred back to the framework. After that,
+ * the HAL must no longer retain that particular buffer, and the
+ * framework may clean up the memory for it immediately.
+ *
+ * process_capture_result may be called multiple times for a single frame,
+ * each time with a new disjoint piece of metadata and/or set of gralloc
+ * buffers. The framework will accumulate these partial metadata results
+ * into one result.
+ *
+ * In particular, it is legal for a process_capture_result to be called
+ * simultaneously for both a frame N and a frame N+1 as long as the
+ * above rule holds for gralloc buffers (both input and output).
+ *
+ * 11. After some time, the framework may stop submitting new requests, wait for
+ * the existing captures to complete (all buffers filled, all results
+ * returned), and then call configure_streams() again. This resets the camera
+ * hardware and pipeline for a new set of input/output streams. Some streams
+ * may be reused from the previous configuration; if these streams' buffers
+ * had already been registered with the HAL, they will not be registered
+ * again. The framework then continues from step 7, if at least one
+ * registered output stream remains (otherwise, step 5 is required first).
+ *
+ * 12. Alternatively, the framework may call camera3_device_t->common->close()
+ * to end the camera session. This may be called at any time when no other
+ * calls from the framework are active, although the call may block until all
+ * in-flight captures have completed (all results returned, all buffers
+ * filled). After the close call returns, no more calls to the
+ * camera3_callback_ops_t functions are allowed from the HAL. Once the
+ * close() call is underway, the framework may not call any other HAL device
+ * functions.
+ *
+ * 13. In case of an error or other asynchronous event, the HAL must call
+ * camera3_callback_ops_t->notify() with the appropriate error/event
+ * message. After returning from a fatal device-wide error notification, the
+ * HAL should act as if close() had been called on it. However, the HAL must
+ * either cancel or complete all outstanding captures before calling
+ * notify(), so that once notify() is called with a fatal error, the
+ * framework will not receive further callbacks from the device. Methods
+ * besides close() should return -ENODEV or NULL after the notify() method
+ * returns from a fatal error message.
+ */
+
+/**
+ * S3. Operational modes:
+ *
+ * The camera 3 HAL device can implement one of two possible operational modes;
+ * limited and full. Full support is expected from new higher-end
+ * devices. Limited mode has hardware requirements roughly in line with those
+ * for a camera HAL device v1 implementation, and is expected from older or
+ * inexpensive devices. Full is a strict superset of limited, and they share the
+ * same essential operational flow, as documented above.
+ *
+ * The HAL must indicate its level of support with the
+ * android.info.supportedHardwareLevel static metadata entry, with 0 indicating
+ * limited mode, and 1 indicating full mode support.
+ *
+ * Roughly speaking, limited-mode devices do not allow for application control
+ * of capture settings (3A control only), high-rate capture of high-resolution
+ * images, raw sensor readout, or support for YUV output streams above maximum
+ * recording resolution (JPEG only for large images).
+ *
+ * ** Details of limited mode behavior:
+ *
+ * - Limited-mode devices do not need to implement accurate synchronization
+ * between capture request settings and the actual image data
+ * captured. Instead, changes to settings may take effect some time in the
+ * future, and possibly not for the same output frame for each settings
+ * entry. Rapid changes in settings may result in some settings never being
+ * used for a capture. However, captures that include high-resolution output
+ * buffers ( > 1080p ) have to use the settings as specified (but see below
+ * for processing rate).
+ *
+ * - Limited-mode devices do not need to support most of the
+ * settings/result/static info metadata. Specifically, only the following settings
+ * are expected to be consumed or produced by a limited-mode HAL device:
+ *
+ * android.control.aeAntibandingMode (controls and dynamic)
+ * android.control.aeExposureCompensation (controls and dynamic)
+ * android.control.aeLock (controls and dynamic)
+ * android.control.aeMode (controls and dynamic)
+ * android.control.aeRegions (controls and dynamic)
+ * android.control.aeTargetFpsRange (controls and dynamic)
+ * android.control.aePrecaptureTrigger (controls and dynamic)
+ * android.control.afMode (controls and dynamic)
+ * android.control.afRegions (controls and dynamic)
+ * android.control.awbLock (controls and dynamic)
+ * android.control.awbMode (controls and dynamic)
+ * android.control.awbRegions (controls and dynamic)
+ * android.control.captureIntent (controls and dynamic)
+ * android.control.effectMode (controls and dynamic)
+ * android.control.mode (controls and dynamic)
+ * android.control.sceneMode (controls and dynamic)
+ * android.control.videoStabilizationMode (controls and dynamic)
+ * android.control.aeAvailableAntibandingModes (static)
+ * android.control.aeAvailableModes (static)
+ * android.control.aeAvailableTargetFpsRanges (static)
+ * android.control.aeCompensationRange (static)
+ * android.control.aeCompensationStep (static)
+ * android.control.afAvailableModes (static)
+ * android.control.availableEffects (static)
+ * android.control.availableSceneModes (static)
+ * android.control.availableVideoStabilizationModes (static)
+ * android.control.awbAvailableModes (static)
+ * android.control.maxRegions (static)
+ * android.control.sceneModeOverrides (static)
+ * android.control.aeState (dynamic)
+ * android.control.afState (dynamic)
+ * android.control.awbState (dynamic)
+ *
+ * android.flash.mode (controls and dynamic)
+ * android.flash.info.available (static)
+ *
+ * android.info.supportedHardwareLevel (static)
+ *
+ * android.jpeg.gpsCoordinates (controls and dynamic)
+ * android.jpeg.gpsProcessingMethod (controls and dynamic)
+ * android.jpeg.gpsTimestamp (controls and dynamic)
+ * android.jpeg.orientation (controls and dynamic)
+ * android.jpeg.quality (controls and dynamic)
+ * android.jpeg.thumbnailQuality (controls and dynamic)
+ * android.jpeg.thumbnailSize (controls and dynamic)
+ * android.jpeg.availableThumbnailSizes (static)
+ * android.jpeg.maxSize (static)
+ *
+ * android.lens.info.minimumFocusDistance (static)
+ *
+ * android.request.id (controls and dynamic)
+ *
+ * android.scaler.cropRegion (controls and dynamic)
+ * android.scaler.availableStreamConfigurations (static)
+ * android.scaler.availableMinFrameDurations (static)
+ * android.scaler.availableStallDurations (static)
+ * android.scaler.availableMaxDigitalZoom (static)
+ * android.scaler.maxDigitalZoom (static)
+ * android.scaler.croppingType (static)
+ *
+ * android.sensor.orientation (static)
+ * android.sensor.timestamp (dynamic)
+ *
+ * android.statistics.faceDetectMode (controls and dynamic)
+ * android.statistics.info.availableFaceDetectModes (static)
+ * android.statistics.faceIds (dynamic)
+ * android.statistics.faceLandmarks (dynamic)
+ * android.statistics.faceRectangles (dynamic)
+ * android.statistics.faceScores (dynamic)
+ *
+ * android.sync.frameNumber (dynamic)
+ * android.sync.maxLatency (static)
+ *
+ * - Captures in limited mode that include high-resolution (> 1080p) output
+ * buffers may block in process_capture_request() until all the output buffers
+ * have been filled. A full-mode HAL device must process sequences of
+ * high-resolution requests at the rate indicated in the static metadata for
+ * that pixel format. The HAL must still call process_capture_result() to
+ * provide the output; the framework must simply be prepared for
+ * process_capture_request() to block until after process_capture_result() for
+ * that request completes for high-resolution captures for limited-mode
+ * devices.
+ *
+ * - Full-mode devices must support below additional capabilities:
+ * - 30fps at maximum resolution is preferred, more than 20fps is required.
+ * - Per frame control (android.sync.maxLatency == PER_FRAME_CONTROL).
+ * - Sensor manual control metadata. See MANUAL_SENSOR defined in
+ * android.request.availableCapabilities.
+ * - Post-processing manual control metadata. See MANUAL_POST_PROCESSING defined
+ * in android.request.availableCapabilities.
+ *
+ */
+
+/**
+ * S4. 3A modes and state machines:
+ *
+ * While the actual 3A algorithms are up to the HAL implementation, a high-level
+ * state machine description is defined by the HAL interface, to allow the HAL
+ * device and the framework to communicate about the current state of 3A, and to
+ * trigger 3A events.
+ *
+ * When the device is opened, all the individual 3A states must be
+ * STATE_INACTIVE. Stream configuration does not reset 3A. For example, locked
+ * focus must be maintained across the configure() call.
+ *
+ * Triggering a 3A action involves simply setting the relevant trigger entry in
+ * the settings for the next request to indicate start of trigger. For example,
+ * the trigger for starting an autofocus scan is setting the entry
+ * ANDROID_CONTROL_AF_TRIGGER to ANDROID_CONTROL_AF_TRIGGER_START for one
+ * request, and cancelling an autofocus scan is triggered by setting
+ * ANDROID_CONTROL_AF_TRIGGER to ANDROID_CONTRL_AF_TRIGGER_CANCEL. Otherwise,
+ * the entry will not exist, or be set to ANDROID_CONTROL_AF_TRIGGER_IDLE. Each
+ * request with a trigger entry set to a non-IDLE value will be treated as an
+ * independent triggering event.
+ *
+ * At the top level, 3A is controlled by the ANDROID_CONTROL_MODE setting, which
+ * selects between no 3A (ANDROID_CONTROL_MODE_OFF), normal AUTO mode
+ * (ANDROID_CONTROL_MODE_AUTO), and using the scene mode setting
+ * (ANDROID_CONTROL_USE_SCENE_MODE).
+ *
+ * - In OFF mode, each of the individual AE/AF/AWB modes are effectively OFF,
+ * and none of the capture controls may be overridden by the 3A routines.
+ *
+ * - In AUTO mode, Auto-focus, auto-exposure, and auto-whitebalance all run
+ * their own independent algorithms, and have their own mode, state, and
+ * trigger metadata entries, as listed in the next section.
+ *
+ * - In USE_SCENE_MODE, the value of the ANDROID_CONTROL_SCENE_MODE entry must
+ * be used to determine the behavior of 3A routines. In SCENE_MODEs other than
+ * FACE_PRIORITY, the HAL must override the values of
+ * ANDROId_CONTROL_AE/AWB/AF_MODE to be the mode it prefers for the selected
+ * SCENE_MODE. For example, the HAL may prefer SCENE_MODE_NIGHT to use
+ * CONTINUOUS_FOCUS AF mode. Any user selection of AE/AWB/AF_MODE when scene
+ * must be ignored for these scene modes.
+ *
+ * - For SCENE_MODE_FACE_PRIORITY, the AE/AWB/AF_MODE controls work as in
+ * ANDROID_CONTROL_MODE_AUTO, but the 3A routines must bias toward metering
+ * and focusing on any detected faces in the scene.
+ *
+ * S4.1. Auto-focus settings and result entries:
+ *
+ * Main metadata entries:
+ *
+ * ANDROID_CONTROL_AF_MODE: Control for selecting the current autofocus
+ * mode. Set by the framework in the request settings.
+ *
+ * AF_MODE_OFF: AF is disabled; the framework/app directly controls lens
+ * position.
+ *
+ * AF_MODE_AUTO: Single-sweep autofocus. No lens movement unless AF is
+ * triggered.
+ *
+ * AF_MODE_MACRO: Single-sweep up-close autofocus. No lens movement unless
+ * AF is triggered.
+ *
+ * AF_MODE_CONTINUOUS_VIDEO: Smooth continuous focusing, for recording
+ * video. Triggering immediately locks focus in current
+ * position. Canceling resumes cotinuous focusing.
+ *
+ * AF_MODE_CONTINUOUS_PICTURE: Fast continuous focusing, for
+ * zero-shutter-lag still capture. Triggering locks focus once currently
+ * active sweep concludes. Canceling resumes continuous focusing.
+ *
+ * AF_MODE_EDOF: Advanced extended depth of field focusing. There is no
+ * autofocus scan, so triggering one or canceling one has no effect.
+ * Images are focused automatically by the HAL.
+ *
+ * ANDROID_CONTROL_AF_STATE: Dynamic metadata describing the current AF
+ * algorithm state, reported by the HAL in the result metadata.
+ *
+ * AF_STATE_INACTIVE: No focusing has been done, or algorithm was
+ * reset. Lens is not moving. Always the state for MODE_OFF or MODE_EDOF.
+ * When the device is opened, it must start in this state.
+ *
+ * AF_STATE_PASSIVE_SCAN: A continuous focus algorithm is currently scanning
+ * for good focus. The lens is moving.
+ *
+ * AF_STATE_PASSIVE_FOCUSED: A continuous focus algorithm believes it is
+ * well focused. The lens is not moving. The HAL may spontaneously leave
+ * this state.
+ *
+ * AF_STATE_PASSIVE_UNFOCUSED: A continuous focus algorithm believes it is
+ * not well focused. The lens is not moving. The HAL may spontaneously
+ * leave this state.
+ *
+ * AF_STATE_ACTIVE_SCAN: A scan triggered by the user is underway.
+ *
+ * AF_STATE_FOCUSED_LOCKED: The AF algorithm believes it is focused. The
+ * lens is not moving.
+ *
+ * AF_STATE_NOT_FOCUSED_LOCKED: The AF algorithm has been unable to
+ * focus. The lens is not moving.
+ *
+ * ANDROID_CONTROL_AF_TRIGGER: Control for starting an autofocus scan, the
+ * meaning of which is mode- and state- dependent. Set by the framework in
+ * the request settings.
+ *
+ * AF_TRIGGER_IDLE: No current trigger.
+ *
+ * AF_TRIGGER_START: Trigger start of AF scan. Effect is mode and state
+ * dependent.
+ *
+ * AF_TRIGGER_CANCEL: Cancel current AF scan if any, and reset algorithm to
+ * default.
+ *
+ * Additional metadata entries:
+ *
+ * ANDROID_CONTROL_AF_REGIONS: Control for selecting the regions of the FOV
+ * that should be used to determine good focus. This applies to all AF
+ * modes that scan for focus. Set by the framework in the request
+ * settings.
+ *
+ * S4.2. Auto-exposure settings and result entries:
+ *
+ * Main metadata entries:
+ *
+ * ANDROID_CONTROL_AE_MODE: Control for selecting the current auto-exposure
+ * mode. Set by the framework in the request settings.
+ *
+ * AE_MODE_OFF: Autoexposure is disabled; the user controls exposure, gain,
+ * frame duration, and flash.
+ *
+ * AE_MODE_ON: Standard autoexposure, with flash control disabled. User may
+ * set flash to fire or to torch mode.
+ *
+ * AE_MODE_ON_AUTO_FLASH: Standard autoexposure, with flash on at HAL's
+ * discretion for precapture and still capture. User control of flash
+ * disabled.
+ *
+ * AE_MODE_ON_ALWAYS_FLASH: Standard autoexposure, with flash always fired
+ * for capture, and at HAL's discretion for precapture.. User control of
+ * flash disabled.
+ *
+ * AE_MODE_ON_AUTO_FLASH_REDEYE: Standard autoexposure, with flash on at
+ * HAL's discretion for precapture and still capture. Use a flash burst
+ * at end of precapture sequence to reduce redeye in the final
+ * picture. User control of flash disabled.
+ *
+ * ANDROID_CONTROL_AE_STATE: Dynamic metadata describing the current AE
+ * algorithm state, reported by the HAL in the result metadata.
+ *
+ * AE_STATE_INACTIVE: Initial AE state after mode switch. When the device is
+ * opened, it must start in this state.
+ *
+ * AE_STATE_SEARCHING: AE is not converged to a good value, and is adjusting
+ * exposure parameters.
+ *
+ * AE_STATE_CONVERGED: AE has found good exposure values for the current
+ * scene, and the exposure parameters are not changing. HAL may
+ * spontaneously leave this state to search for better solution.
+ *
+ * AE_STATE_LOCKED: AE has been locked with the AE_LOCK control. Exposure
+ * values are not changing.
+ *
+ * AE_STATE_FLASH_REQUIRED: The HAL has converged exposure, but believes
+ * flash is required for a sufficiently bright picture. Used for
+ * determining if a zero-shutter-lag frame can be used.
+ *
+ * AE_STATE_PRECAPTURE: The HAL is in the middle of a precapture
+ * sequence. Depending on AE mode, this mode may involve firing the
+ * flash for metering, or a burst of flash pulses for redeye reduction.
+ *
+ * ANDROID_CONTROL_AE_PRECAPTURE_TRIGGER: Control for starting a metering
+ * sequence before capturing a high-quality image. Set by the framework in
+ * the request settings.
+ *
+ * PRECAPTURE_TRIGGER_IDLE: No current trigger.
+ *
+ * PRECAPTURE_TRIGGER_START: Start a precapture sequence. The HAL should
+ * use the subsequent requests to measure good exposure/white balance
+ * for an upcoming high-resolution capture.
+ *
+ * Additional metadata entries:
+ *
+ * ANDROID_CONTROL_AE_LOCK: Control for locking AE controls to their current
+ * values
+ *
+ * ANDROID_CONTROL_AE_EXPOSURE_COMPENSATION: Control for adjusting AE
+ * algorithm target brightness point.
+ *
+ * ANDROID_CONTROL_AE_TARGET_FPS_RANGE: Control for selecting the target frame
+ * rate range for the AE algorithm. The AE routine cannot change the frame
+ * rate to be outside these bounds.
+ *
+ * ANDROID_CONTROL_AE_REGIONS: Control for selecting the regions of the FOV
+ * that should be used to determine good exposure levels. This applies to
+ * all AE modes besides OFF.
+ *
+ * S4.3. Auto-whitebalance settings and result entries:
+ *
+ * Main metadata entries:
+ *
+ * ANDROID_CONTROL_AWB_MODE: Control for selecting the current white-balance
+ * mode.
+ *
+ * AWB_MODE_OFF: Auto-whitebalance is disabled. User controls color matrix.
+ *
+ * AWB_MODE_AUTO: Automatic white balance is enabled; 3A controls color
+ * transform, possibly using more complex transforms than a simple
+ * matrix.
+ *
+ * AWB_MODE_INCANDESCENT: Fixed white balance settings good for indoor
+ * incandescent (tungsten) lighting, roughly 2700K.
+ *
+ * AWB_MODE_FLUORESCENT: Fixed white balance settings good for fluorescent
+ * lighting, roughly 5000K.
+ *
+ * AWB_MODE_WARM_FLUORESCENT: Fixed white balance settings good for
+ * fluorescent lighting, roughly 3000K.
+ *
+ * AWB_MODE_DAYLIGHT: Fixed white balance settings good for daylight,
+ * roughly 5500K.
+ *
+ * AWB_MODE_CLOUDY_DAYLIGHT: Fixed white balance settings good for clouded
+ * daylight, roughly 6500K.
+ *
+ * AWB_MODE_TWILIGHT: Fixed white balance settings good for
+ * near-sunset/sunrise, roughly 15000K.
+ *
+ * AWB_MODE_SHADE: Fixed white balance settings good for areas indirectly
+ * lit by the sun, roughly 7500K.
+ *
+ * ANDROID_CONTROL_AWB_STATE: Dynamic metadata describing the current AWB
+ * algorithm state, reported by the HAL in the result metadata.
+ *
+ * AWB_STATE_INACTIVE: Initial AWB state after mode switch. When the device
+ * is opened, it must start in this state.
+ *
+ * AWB_STATE_SEARCHING: AWB is not converged to a good value, and is
+ * changing color adjustment parameters.
+ *
+ * AWB_STATE_CONVERGED: AWB has found good color adjustment values for the
+ * current scene, and the parameters are not changing. HAL may
+ * spontaneously leave this state to search for better solution.
+ *
+ * AWB_STATE_LOCKED: AWB has been locked with the AWB_LOCK control. Color
+ * adjustment values are not changing.
+ *
+ * Additional metadata entries:
+ *
+ * ANDROID_CONTROL_AWB_LOCK: Control for locking AWB color adjustments to
+ * their current values.
+ *
+ * ANDROID_CONTROL_AWB_REGIONS: Control for selecting the regions of the FOV
+ * that should be used to determine good color balance. This applies only
+ * to auto-WB mode.
+ *
+ * S4.4. General state machine transition notes
+ *
+ * Switching between AF, AE, or AWB modes always resets the algorithm's state
+ * to INACTIVE. Similarly, switching between CONTROL_MODE or
+ * CONTROL_SCENE_MODE if CONTROL_MODE == USE_SCENE_MODE resets all the
+ * algorithm states to INACTIVE.
+ *
+ * The tables below are per-mode.
+ *
+ * S4.5. AF state machines
+ *
+ * when enabling AF or changing AF mode
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| Any | AF mode change| INACTIVE | |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ * mode = AF_MODE_OFF or AF_MODE_EDOF
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | | INACTIVE | Never changes |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ * mode = AF_MODE_AUTO or AF_MODE_MACRO
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | AF_TRIGGER | ACTIVE_SCAN | Start AF sweep |
+ *| | | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| ACTIVE_SCAN | AF sweep done | FOCUSED_LOCKED | If AF successful |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| ACTIVE_SCAN | AF sweep done | NOT_FOCUSED_LOCKED | If AF successful |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| ACTIVE_SCAN | AF_CANCEL | INACTIVE | Cancel/reset AF |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Cancel/reset AF |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FOCUSED_LOCKED | AF_TRIGGER | ACTIVE_SCAN | Start new sweep |
+ *| | | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| NOT_FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Cancel/reset AF |
+ *+--------------------+---------------+--------------------+------------------+
+ *| NOT_FOCUSED_LOCKED | AF_TRIGGER | ACTIVE_SCAN | Start new sweep |
+ *| | | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| All states | mode change | INACTIVE | |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ * mode = AF_MODE_CONTINUOUS_VIDEO
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | HAL initiates | PASSIVE_SCAN | Start AF scan |
+ *| | new scan | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | AF_TRIGGER | NOT_FOCUSED_LOCKED | AF state query |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | HAL completes | PASSIVE_FOCUSED | End AF scan |
+ *| | current scan | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | HAL fails | PASSIVE_UNFOCUSED | End AF scan |
+ *| | current scan | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | AF_TRIGGER | FOCUSED_LOCKED | Immediate trans. |
+ *| | | | if focus is good |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | AF_TRIGGER | NOT_FOCUSED_LOCKED | Immediate trans. |
+ *| | | | if focus is bad |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | AF_CANCEL | INACTIVE | Reset lens |
+ *| | | | position |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_FOCUSED | HAL initiates | PASSIVE_SCAN | Start AF scan |
+ *| | new scan | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_UNFOCUSED | HAL initiates | PASSIVE_SCAN | Start AF scan |
+ *| | new scan | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_FOCUSED | AF_TRIGGER | FOCUSED_LOCKED | Immediate trans. |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_UNFOCUSED | AF_TRIGGER | NOT_FOCUSED_LOCKED | Immediate trans. |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FOCUSED_LOCKED | AF_TRIGGER | FOCUSED_LOCKED | No effect |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan |
+ *+--------------------+---------------+--------------------+------------------+
+ *| NOT_FOCUSED_LOCKED | AF_TRIGGER | NOT_FOCUSED_LOCKED | No effect |
+ *+--------------------+---------------+--------------------+------------------+
+ *| NOT_FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ * mode = AF_MODE_CONTINUOUS_PICTURE
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | HAL initiates | PASSIVE_SCAN | Start AF scan |
+ *| | new scan | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | AF_TRIGGER | NOT_FOCUSED_LOCKED | AF state query |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | HAL completes | PASSIVE_FOCUSED | End AF scan |
+ *| | current scan | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | HAL fails | PASSIVE_UNFOCUSED | End AF scan |
+ *| | current scan | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | AF_TRIGGER | FOCUSED_LOCKED | Eventual trans. |
+ *| | | | once focus good |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | AF_TRIGGER | NOT_FOCUSED_LOCKED | Eventual trans. |
+ *| | | | if cannot focus |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_SCAN | AF_CANCEL | INACTIVE | Reset lens |
+ *| | | | position |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_FOCUSED | HAL initiates | PASSIVE_SCAN | Start AF scan |
+ *| | new scan | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_UNFOCUSED | HAL initiates | PASSIVE_SCAN | Start AF scan |
+ *| | new scan | | Lens now moving |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_FOCUSED | AF_TRIGGER | FOCUSED_LOCKED | Immediate trans. |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PASSIVE_UNFOCUSED | AF_TRIGGER | NOT_FOCUSED_LOCKED | Immediate trans. |
+ *| | | | Lens now locked |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FOCUSED_LOCKED | AF_TRIGGER | FOCUSED_LOCKED | No effect |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan |
+ *+--------------------+---------------+--------------------+------------------+
+ *| NOT_FOCUSED_LOCKED | AF_TRIGGER | NOT_FOCUSED_LOCKED | No effect |
+ *+--------------------+---------------+--------------------+------------------+
+ *| NOT_FOCUSED_LOCKED | AF_CANCEL | INACTIVE | Restart AF scan |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ * S4.6. AE and AWB state machines
+ *
+ * The AE and AWB state machines are mostly identical. AE has additional
+ * FLASH_REQUIRED and PRECAPTURE states. So rows below that refer to those two
+ * states should be ignored for the AWB state machine.
+ *
+ * when enabling AE/AWB or changing AE/AWB mode
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| Any | mode change | INACTIVE | |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ * mode = AE_MODE_OFF / AWB mode not AUTO
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | | INACTIVE | AE/AWB disabled |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ * mode = AE_MODE_ON_* / AWB_MODE_AUTO
+ *| state | trans. cause | new state | notes |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | HAL initiates | SEARCHING | |
+ *| | AE/AWB scan | | |
+ *+--------------------+---------------+--------------------+------------------+
+ *| INACTIVE | AE/AWB_LOCK | LOCKED | values locked |
+ *| | on | | |
+ *+--------------------+---------------+--------------------+------------------+
+ *| SEARCHING | HAL finishes | CONVERGED | good values, not |
+ *| | AE/AWB scan | | changing |
+ *+--------------------+---------------+--------------------+------------------+
+ *| SEARCHING | HAL finishes | FLASH_REQUIRED | converged but too|
+ *| | AE scan | | dark w/o flash |
+ *+--------------------+---------------+--------------------+------------------+
+ *| SEARCHING | AE/AWB_LOCK | LOCKED | values locked |
+ *| | on | | |
+ *+--------------------+---------------+--------------------+------------------+
+ *| CONVERGED | HAL initiates | SEARCHING | values locked |
+ *| | AE/AWB scan | | |
+ *+--------------------+---------------+--------------------+------------------+
+ *| CONVERGED | AE/AWB_LOCK | LOCKED | values locked |
+ *| | on | | |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FLASH_REQUIRED | HAL initiates | SEARCHING | values locked |
+ *| | AE/AWB scan | | |
+ *+--------------------+---------------+--------------------+------------------+
+ *| FLASH_REQUIRED | AE/AWB_LOCK | LOCKED | values locked |
+ *| | on | | |
+ *+--------------------+---------------+--------------------+------------------+
+ *| LOCKED | AE/AWB_LOCK | SEARCHING | values not good |
+ *| | off | | after unlock |
+ *+--------------------+---------------+--------------------+------------------+
+ *| LOCKED | AE/AWB_LOCK | CONVERGED | values good |
+ *| | off | | after unlock |
+ *+--------------------+---------------+--------------------+------------------+
+ *| LOCKED | AE_LOCK | FLASH_REQUIRED | exposure good, |
+ *| | off | | but too dark |
+ *+--------------------+---------------+--------------------+------------------+
+ *| All AE states | PRECAPTURE_ | PRECAPTURE | Start precapture |
+ *| | START | | sequence |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PRECAPTURE | Sequence done.| CONVERGED | Ready for high- |
+ *| | AE_LOCK off | | quality capture |
+ *+--------------------+---------------+--------------------+------------------+
+ *| PRECAPTURE | Sequence done.| LOCKED | Ready for high- |
+ *| | AE_LOCK on | | quality capture |
+ *+--------------------+---------------+--------------------+------------------+
+ *
+ */
+
+/**
+ * S5. Cropping:
+ *
+ * Cropping of the full pixel array (for digital zoom and other use cases where
+ * a smaller FOV is desirable) is communicated through the
+ * ANDROID_SCALER_CROP_REGION setting. This is a per-request setting, and can
+ * change on a per-request basis, which is critical for implementing smooth
+ * digital zoom.
+ *
+ * The region is defined as a rectangle (x, y, width, height), with (x, y)
+ * describing the top-left corner of the rectangle. The rectangle is defined on
+ * the coordinate system of the sensor active pixel array, with (0,0) being the
+ * top-left pixel of the active pixel array. Therefore, the width and height
+ * cannot be larger than the dimensions reported in the
+ * ANDROID_SENSOR_ACTIVE_PIXEL_ARRAY static info field. The minimum allowed
+ * width and height are reported by the HAL through the
+ * ANDROID_SCALER_MAX_DIGITAL_ZOOM static info field, which describes the
+ * maximum supported zoom factor. Therefore, the minimum crop region width and
+ * height are:
+ *
+ * {width, height} =
+ * { floor(ANDROID_SENSOR_ACTIVE_PIXEL_ARRAY[0] /
+ * ANDROID_SCALER_MAX_DIGITAL_ZOOM),
+ * floor(ANDROID_SENSOR_ACTIVE_PIXEL_ARRAY[1] /
+ * ANDROID_SCALER_MAX_DIGITAL_ZOOM) }
+ *
+ * If the crop region needs to fulfill specific requirements (for example, it
+ * needs to start on even coordinates, and its width/height needs to be even),
+ * the HAL must do the necessary rounding and write out the final crop region
+ * used in the output result metadata. Similarly, if the HAL implements video
+ * stabilization, it must adjust the result crop region to describe the region
+ * actually included in the output after video stabilization is applied. In
+ * general, a camera-using application must be able to determine the field of
+ * view it is receiving based on the crop region, the dimensions of the image
+ * sensor, and the lens focal length.
+ *
+ * It is assumed that the cropping is applied after raw to other color space
+ * conversion. Raw streams (RAW16 and RAW_OPAQUE) don't have this conversion stage,
+ * and are not croppable. Therefore, the crop region must be ignored by the HAL
+ * for raw streams.
+ *
+ * Since the crop region applies to all non-raw streams, which may have different aspect
+ * ratios than the crop region, the exact sensor region used for each stream may
+ * be smaller than the crop region. Specifically, each stream should maintain
+ * square pixels and its aspect ratio by minimally further cropping the defined
+ * crop region. If the stream's aspect ratio is wider than the crop region, the
+ * stream should be further cropped vertically, and if the stream's aspect ratio
+ * is narrower than the crop region, the stream should be further cropped
+ * horizontally.
+ *
+ * In all cases, the stream crop must be centered within the full crop region,
+ * and each stream is only either cropped horizontally or vertical relative to
+ * the full crop region, never both.
+ *
+ * For example, if two streams are defined, a 640x480 stream (4:3 aspect), and a
+ * 1280x720 stream (16:9 aspect), below demonstrates the expected output regions
+ * for each stream for a few sample crop regions, on a hypothetical 3 MP (2000 x
+ * 1500 pixel array) sensor.
+ *
+ * Crop region: (500, 375, 1000, 750) (4:3 aspect ratio)
+ *
+ * 640x480 stream crop: (500, 375, 1000, 750) (equal to crop region)
+ * 1280x720 stream crop: (500, 469, 1000, 562) (marked with =)
+ *
+ * 0 1000 2000
+ * +---------+---------+---------+----------+
+ * | Active pixel array |
+ * | |
+ * | |
+ * + +-------------------+ + 375
+ * | | | |
+ * | O===================O |
+ * | I 1280x720 stream I |
+ * + I I + 750
+ * | I I |
+ * | O===================O |
+ * | | | |
+ * + +-------------------+ + 1125
+ * | Crop region, 640x480 stream |
+ * | |
+ * | |
+ * +---------+---------+---------+----------+ 1500
+ *
+ * Crop region: (500, 375, 1333, 750) (16:9 aspect ratio)
+ *
+ * 640x480 stream crop: (666, 375, 1000, 750) (marked with =)
+ * 1280x720 stream crop: (500, 375, 1333, 750) (equal to crop region)
+ *
+ * 0 1000 2000
+ * +---------+---------+---------+----------+
+ * | Active pixel array |
+ * | |
+ * | |
+ * + +---O==================O---+ + 375
+ * | | I 640x480 stream I | |
+ * | | I I | |
+ * | | I I | |
+ * + | I I | + 750
+ * | | I I | |
+ * | | I I | |
+ * | | I I | |
+ * + +---O==================O---+ + 1125
+ * | Crop region, 1280x720 stream |
+ * | |
+ * | |
+ * +---------+---------+---------+----------+ 1500
+ *
+ * Crop region: (500, 375, 750, 750) (1:1 aspect ratio)
+ *
+ * 640x480 stream crop: (500, 469, 750, 562) (marked with =)
+ * 1280x720 stream crop: (500, 543, 750, 414) (marged with #)
+ *
+ * 0 1000 2000
+ * +---------+---------+---------+----------+
+ * | Active pixel array |
+ * | |
+ * | |
+ * + +--------------+ + 375
+ * | O==============O |
+ * | ################ |
+ * | # # |
+ * + # # + 750
+ * | # # |
+ * | ################ 1280x720 |
+ * | O==============O 640x480 |
+ * + +--------------+ + 1125
+ * | Crop region |
+ * | |
+ * | |
+ * +---------+---------+---------+----------+ 1500
+ *
+ * And a final example, a 1024x1024 square aspect ratio stream instead of the
+ * 480p stream:
+ *
+ * Crop region: (500, 375, 1000, 750) (4:3 aspect ratio)
+ *
+ * 1024x1024 stream crop: (625, 375, 750, 750) (marked with #)
+ * 1280x720 stream crop: (500, 469, 1000, 562) (marked with =)
+ *
+ * 0 1000 2000
+ * +---------+---------+---------+----------+
+ * | Active pixel array |
+ * | |
+ * | 1024x1024 stream |
+ * + +--###############--+ + 375
+ * | | # # | |
+ * | O===================O |
+ * | I 1280x720 stream I |
+ * + I I + 750
+ * | I I |
+ * | O===================O |
+ * | | # # | |
+ * + +--###############--+ + 1125
+ * | Crop region |
+ * | |
+ * | |
+ * +---------+---------+---------+----------+ 1500
+ *
+ */
+
+/**
+ * S6. Error management:
+ *
+ * Camera HAL device ops functions that have a return value will all return
+ * -ENODEV / NULL in case of a serious error. This means the device cannot
+ * continue operation, and must be closed by the framework. Once this error is
+ * returned by some method, or if notify() is called with ERROR_DEVICE, only
+ * the close() method can be called successfully. All other methods will return
+ * -ENODEV / NULL.
+ *
+ * If a device op is called in the wrong sequence, for example if the framework
+ * calls configure_streams() is called before initialize(), the device must
+ * return -ENOSYS from the call, and do nothing.
+ *
+ * Transient errors in image capture must be reported through notify() as follows:
+ *
+ * - The failure of an entire capture to occur must be reported by the HAL by
+ * calling notify() with ERROR_REQUEST. Individual errors for the result
+ * metadata or the output buffers must not be reported in this case.
+ *
+ * - If the metadata for a capture cannot be produced, but some image buffers
+ * were filled, the HAL must call notify() with ERROR_RESULT.
+ *
+ * - If an output image buffer could not be filled, but either the metadata was
+ * produced or some other buffers were filled, the HAL must call notify() with
+ * ERROR_BUFFER for each failed buffer.
+ *
+ * In each of these transient failure cases, the HAL must still call
+ * process_capture_result, with valid output and input (if an input buffer was
+ * submitted) buffer_handle_t. If the result metadata could not be produced, it
+ * should be NULL. If some buffers could not be filled, they must be returned with
+ * process_capture_result in the error state, their release fences must be set to
+ * the acquire fences passed by the framework, or -1 if they have been waited on by
+ * the HAL already.
+ *
+ * Invalid input arguments result in -EINVAL from the appropriate methods. In
+ * that case, the framework must act as if that call had never been made.
+ *
+ */
+
+/**
+ * S7. Key Performance Indicator (KPI) glossary:
+ *
+ * This includes some critical definitions that are used by KPI metrics.
+ *
+ * Pipeline Latency:
+ * For a given capture request, the duration from the framework calling
+ * process_capture_request to the HAL sending capture result and all buffers
+ * back by process_capture_result call. To make the Pipeline Latency measure
+ * independent of frame rate, it is measured by frame count.
+ *
+ * For example, when frame rate is 30 (fps), the frame duration (time interval
+ * between adjacent frame capture time) is 33 (ms).
+ * If it takes 5 frames for framework to get the result and buffers back for
+ * a given request, then the Pipeline Latency is 5 (frames), instead of
+ * 5 x 33 = 165 (ms).
+ *
+ * The Pipeline Latency is determined by android.request.pipelineDepth and
+ * android.request.pipelineMaxDepth, see their definitions for more details.
+ *
+ */
+
+/**
+ * S8. Sample Use Cases:
+ *
+ * This includes some typical use case examples the camera HAL may support.
+ *
+ * S8.1 Zero Shutter Lag (ZSL) with CAMERA3_STREAM_BIDIRECTIONAL stream.
+ *
+ * For this use case, the bidirectional stream will be used by the framework as follows:
+ *
+ * 1. The framework includes a buffer from this stream as output buffer in a
+ * request as normal.
+ *
+ * 2. Once the HAL device returns a filled output buffer to the framework,
+ * the framework may do one of two things with the filled buffer:
+ *
+ * 2. a. The framework uses the filled data, and returns the now-used buffer
+ * to the stream queue for reuse. This behavior exactly matches the
+ * OUTPUT type of stream.
+ *
+ * 2. b. The framework wants to reprocess the filled data, and uses the
+ * buffer as an input buffer for a request. Once the HAL device has
+ * used the reprocessing buffer, it then returns it to the
+ * framework. The framework then returns the now-used buffer to the
+ * stream queue for reuse.
+ *
+ * 3. The HAL device will be given the buffer again as an output buffer for
+ * a request at some future point.
+ *
+ * For ZSL use case, the pixel format for bidirectional stream will be
+ * HAL_PIXEL_FORMAT_RAW_OPAQUE or HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED if it
+ * is listed in android.scaler.availableInputOutputFormatsMap. When
+ * HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED is used, the gralloc
+ * usage flags for the consumer endpoint will be set to GRALLOC_USAGE_HW_CAMERA_ZSL.
+ * A configuration stream list that has BIDIRECTIONAL stream used as input, will
+ * usually also have a distinct OUTPUT stream to get the reprocessing data. For example,
+ * for the ZSL use case, the stream list might be configured with the following:
+ *
+ * - A HAL_PIXEL_FORMAT_RAW_OPAQUE bidirectional stream is used
+ * as input.
+ * - And a HAL_PIXEL_FORMAT_BLOB (JPEG) output stream.
+ *
+ * S8.2 ZSL (OPAQUE) reprocessing with CAMERA3_STREAM_INPUT stream.
+ *
+ * CAMERA_DEVICE_API_VERSION_3_3:
+ * When OPAQUE_REPROCESSING capability is supported by the camera device, the INPUT stream
+ * can be used for application/framework implemented use case like Zero Shutter Lag (ZSL).
+ * This kind of stream will be used by the framework as follows:
+ *
+ * 1. Application/framework configures an opaque (RAW or YUV based) format output stream that is
+ * used to produce the ZSL output buffers. The stream pixel format will be
+ * HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED.
+ *
+ * 2. Application/framework configures an opaque format input stream that is used to
+ * send the reprocessing ZSL buffers to the HAL. The stream pixel format will
+ * also be HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED.
+ *
+ * 3. Application/framework configures a YUV/JPEG output stream that is used to receive the
+ * reprocessed data. The stream pixel format will be YCbCr_420/HAL_PIXEL_FORMAT_BLOB.
+ *
+ * 4. Application/framework picks a ZSL buffer from the ZSL output stream when a ZSL capture is
+ * issued by the application, and sends the data back as an input buffer in a
+ * reprocessing request, then sends to the HAL for reprocessing.
+ *
+ * 5. The HAL sends back the output YUV/JPEG result to framework.
+ *
+ * The HAL can select the actual opaque buffer format and configure the ISP pipeline
+ * appropriately based on the HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED format and
+ * the gralloc usage flag GRALLOC_USAGE_HW_CAMERA_ZSL.
+
+ * S8.3 YUV reprocessing with CAMERA3_STREAM_INPUT stream.
+ *
+ * When YUV reprocessing is supported by the HAL, the INPUT stream
+ * can be used for the YUV reprocessing use cases like lucky-shot and image fusion.
+ * This kind of stream will be used by the framework as follows:
+ *
+ * 1. Application/framework configures an YCbCr_420 format output stream that is
+ * used to produce the output buffers.
+ *
+ * 2. Application/framework configures an YCbCr_420 format input stream that is used to
+ * send the reprocessing YUV buffers to the HAL.
+ *
+ * 3. Application/framework configures a YUV/JPEG output stream that is used to receive the
+ * reprocessed data. The stream pixel format will be YCbCr_420/HAL_PIXEL_FORMAT_BLOB.
+ *
+ * 4. Application/framework processes the output buffers (could be as simple as picking
+ * an output buffer directly) from the output stream when a capture is issued, and sends
+ * the data back as an input buffer in a reprocessing request, then sends to the HAL
+ * for reprocessing.
+ *
+ * 5. The HAL sends back the output YUV/JPEG result to framework.
+ *
+ */
+
+/**
+ * S9. Notes on Controls and Metadata
+ *
+ * This section contains notes about the interpretation and usage of various metadata tags.
+ *
+ * S9.1 HIGH_QUALITY and FAST modes.
+ *
+ * Many camera post-processing blocks may be listed as having HIGH_QUALITY,
+ * FAST, and OFF operating modes. These blocks will typically also have an
+ * 'available modes' tag representing which of these operating modes are
+ * available on a given device. The general policy regarding implementing
+ * these modes is as follows:
+ *
+ * 1. Operating mode controls of hardware blocks that cannot be disabled
+ * must not list OFF in their corresponding 'available modes' tags.
+ *
+ * 2. OFF will always be included in their corresponding 'available modes'
+ * tag if it is possible to disable that hardware block.
+ *
+ * 3. FAST must always be included in the 'available modes' tags for all
+ * post-processing blocks supported on the device. If a post-processing
+ * block also has a slower and higher quality operating mode that does
+ * not meet the framerate requirements for FAST mode, HIGH_QUALITY should
+ * be included in the 'available modes' tag to represent this operating
+ * mode.
+ */
+
+/**
+ * S10. Reprocessing flow and controls
+ *
+ * This section describes the OPAQUE and YUV reprocessing flow and controls. OPAQUE reprocessing
+ * uses an opaque format that is not directly application-visible, and the application can
+ * only select some of the output buffers and send back to HAL for reprocessing, while YUV
+ * reprocessing gives the application opportunity to process the buffers before reprocessing.
+ *
+ * S8 gives the stream configurations for the typical reprocessing uses cases,
+ * this section specifies the buffer flow and controls in more details.
+ *
+ * S10.1 OPAQUE (typically for ZSL use case) reprocessing flow and controls
+ *
+ * For OPAQUE reprocessing (e.g. ZSL) use case, after the application creates the specific
+ * output and input streams, runtime buffer flow and controls are specified as below:
+ *
+ * 1. Application starts output streaming by sending repeating requests for output
+ * opaque buffers and preview. The buffers are held by an application
+ * maintained circular buffer. The requests are based on CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG
+ * capture template, which should have all necessary settings that guarantee output
+ * frame rate is not slowed down relative to sensor output frame rate.
+ *
+ * 2. When a capture is issued, the application selects one output buffer based
+ * on application buffer selection logic, e.g. good AE and AF statistics etc.
+ * Application then creates an reprocess request based on the capture result associated
+ * with this selected buffer. The selected output buffer is now added to this reprocess
+ * request as an input buffer, the output buffer of this reprocess request should be
+ * either JPEG output buffer or YUV output buffer, or both, depending on the application
+ * choice.
+ *
+ * 3. Application then alters the reprocess settings to get best image quality. The HAL must
+ * support and only support below controls if the HAL support OPAQUE_REPROCESSING capability:
+ * - android.jpeg.* (if JPEG buffer is included as one of the output)
+ * - android.noiseReduction.mode (change to HIGH_QUALITY if it is supported)
+ * - android.edge.mode (change to HIGH_QUALITY if it is supported)
+ * All other controls must be ignored by the HAL.
+ * 4. HAL processed the input buffer and return the output buffers in the capture results
+ * as normal.
+ *
+ * S10.2 YUV reprocessing flow and controls
+ *
+ * The YUV reprocessing buffer flow is similar as OPAQUE reprocessing, with below difference:
+ *
+ * 1. Application may want to have finer granularity control of the intermediate YUV images
+ * (before reprocessing). For example, application may choose
+ * - android.noiseReduction.mode == MINIMAL
+ * to make sure the no YUV domain noise reduction has applied to the output YUV buffers,
+ * then it can do its own advanced noise reduction on them. For OPAQUE reprocessing case, this
+ * doesn't matter, as long as the final reprocessed image has the best quality.
+ * 2. Application may modify the YUV output buffer data. For example, for image fusion use
+ * case, where multiple output images are merged together to improve the signal-to-noise
+ * ratio (SNR). The input buffer may be generated from multiple buffers by the application.
+ * To avoid excessive amount of noise reduction and insufficient amount of edge enhancement
+ * being applied to the input buffer, the application can hint the HAL how much effective
+ * exposure time improvement has been done by the application, then the HAL can adjust the
+ * noise reduction and edge enhancement paramters to get best reprocessed image quality.
+ * Below tag can be used for this purpose:
+ * - android.reprocess.effectiveExposureFactor
+ * The value would be exposure time increase factor applied to the original output image,
+ * for example, if there are N image merged, the exposure time increase factor would be up
+ * to sqrt(N). See this tag spec for more details.
+ *
+ * S10.3 Reprocessing pipeline characteristics
+ *
+ * Reprocessing pipeline has below different characteristics comparing with normal output
+ * pipeline:
+ *
+ * 1. The reprocessing result can be returned ahead of the pending normal output results. But
+ * the FIFO ordering must be maintained for all reprocessing results. For example, there are
+ * below requests (A stands for output requests, B stands for reprocessing requests)
+ * being processed by the HAL:
+ * A1, A2, A3, A4, B1, A5, B2, A6...
+ * result of B1 can be returned before A1-A4, but result of B2 must be returned after B1.
+ * 2. Single input rule: For a given reprocessing request, all output buffers must be from the
+ * input buffer, rather than sensor output. For example, if a reprocess request include both
+ * JPEG and preview buffers, all output buffers must be produced from the input buffer
+ * included by the reprocessing request, rather than sensor. The HAL must not output preview
+ * buffers from sensor, while output JPEG buffer from the input buffer.
+ * 3. Input buffer will be from camera output directly (ZSL case) or indirectly(image fusion
+ * case). For the case where buffer is modified, the size will remain same. The HAL can
+ * notify CAMERA3_MSG_ERROR_REQUEST if buffer from unknown source is sent.
+ * 4. Result as reprocessing request: The HAL can expect that a reprocessing request is a copy
+ * of one of the output results with minor allowed setting changes. The HAL can notify
+ * CAMERA3_MSG_ERROR_REQUEST if a request from unknown source is issued.
+ * 5. Output buffers may not be used as inputs across the configure stream boundary, This is
+ * because an opaque stream like the ZSL output stream may have different actual image size
+ * inside of the ZSL buffer to save power and bandwidth for smaller resolution JPEG capture.
+ * The HAL may notify CAMERA3_MSG_ERROR_REQUEST if this case occurs.
+ * 6. HAL Reprocess requests error reporting during flush should follow the same rule specified
+ * by flush() method.
+ *
+ */
+
+__BEGIN_DECLS
+
+struct camera3_device;
+
+/**********************************************************************
+ *
+ * Camera3 stream and stream buffer definitions.
+ *
+ * These structs and enums define the handles and contents of the input and
+ * output streams connecting the HAL to various framework and application buffer
+ * consumers. Each stream is backed by a gralloc buffer queue.
+ *
+ */
+
+/**
+ * camera3_stream_type_t:
+ *
+ * The type of the camera stream, which defines whether the camera HAL device is
+ * the producer or the consumer for that stream, and how the buffers of the
+ * stream relate to the other streams.
+ */
+typedef enum camera3_stream_type {
+ /**
+ * This stream is an output stream; the camera HAL device will be
+ * responsible for filling buffers from this stream with newly captured or
+ * reprocessed image data.
+ */
+ CAMERA3_STREAM_OUTPUT = 0,
+
+ /**
+ * This stream is an input stream; the camera HAL device will be responsible
+ * for reading buffers from this stream and sending them through the camera
+ * processing pipeline, as if the buffer was a newly captured image from the
+ * imager.
+ *
+ * The pixel format for input stream can be any format reported by
+ * android.scaler.availableInputOutputFormatsMap. The pixel format of the
+ * output stream that is used to produce the reprocessing data may be any
+ * format reported by android.scaler.availableStreamConfigurations. The
+ * supported input/output stream combinations depends the camera device
+ * capabilities, see android.scaler.availableInputOutputFormatsMap for
+ * stream map details.
+ *
+ * This kind of stream is generally used to reprocess data into higher
+ * quality images (that otherwise would cause a frame rate performance
+ * loss), or to do off-line reprocessing.
+ *
+ * CAMERA_DEVICE_API_VERSION_3_3:
+ * The typical use cases are OPAQUE (typically ZSL) and YUV reprocessing,
+ * see S8.2, S8.3 and S10 for more details.
+ */
+ CAMERA3_STREAM_INPUT = 1,
+
+ /**
+ * This stream can be used for input and output. Typically, the stream is
+ * used as an output stream, but occasionally one already-filled buffer may
+ * be sent back to the HAL device for reprocessing.
+ *
+ * This kind of stream is meant generally for Zero Shutter Lag (ZSL)
+ * features, where copying the captured image from the output buffer to the
+ * reprocessing input buffer would be expensive. See S8.1 for more details.
+ *
+ * Note that the HAL will always be reprocessing data it produced.
+ *
+ */
+ CAMERA3_STREAM_BIDIRECTIONAL = 2,
+
+ /**
+ * Total number of framework-defined stream types
+ */
+ CAMERA3_NUM_STREAM_TYPES
+
+} camera3_stream_type_t;
+
+/**
+ * camera3_stream_rotation_t:
+ *
+ * The required counterclockwise rotation of camera stream.
+ */
+typedef enum camera3_stream_rotation {
+ /* No rotation */
+ CAMERA3_STREAM_ROTATION_0 = 0,
+
+ /* Rotate by 90 degree counterclockwise */
+ CAMERA3_STREAM_ROTATION_90 = 1,
+
+ /* Rotate by 180 degree counterclockwise */
+ CAMERA3_STREAM_ROTATION_180 = 2,
+
+ /* Rotate by 270 degree counterclockwise */
+ CAMERA3_STREAM_ROTATION_270 = 3
+} camera3_stream_rotation_t;
+
+/**
+ * camera3_stream_configuration_mode_t:
+ *
+ * This defines the general operation mode for the HAL (for a given stream configuration), where
+ * modes besides NORMAL have different semantics, and usually limit the generality of the API in
+ * exchange for higher performance in some particular area.
+ */
+typedef enum camera3_stream_configuration_mode {
+ /**
+ * Normal stream configuration operation mode. This is the default camera operation mode,
+ * where all semantics of HAL APIs and metadata controls apply.
+ */
+ CAMERA3_STREAM_CONFIGURATION_NORMAL_MODE = 0,
+
+ /**
+ * Special constrained high speed operation mode for devices that can not support high
+ * speed output in NORMAL mode. All streams in this configuration are operating at high speed
+ * mode and have different characteristics and limitations to achieve high speed output.
+ * The NORMAL mode can still be used for high speed output if the HAL can support high speed
+ * output while satisfying all the semantics of HAL APIs and metadata controls. It is
+ * recommended for the HAL to support high speed output in NORMAL mode (by advertising the high
+ * speed FPS ranges in android.control.aeAvailableTargetFpsRanges) if possible.
+ *
+ * This mode has below limitations/requirements:
+ *
+ * 1. The HAL must support up to 2 streams with sizes reported by
+ * android.control.availableHighSpeedVideoConfigurations.
+ * 2. In this mode, the HAL is expected to output up to 120fps or higher. This mode must
+ * support the targeted FPS range and size configurations reported by
+ * android.control.availableHighSpeedVideoConfigurations.
+ * 3. The HAL must support HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED output stream format.
+ * 4. To achieve efficient high speed streaming, the HAL may have to aggregate
+ * multiple frames together and send to camera device for processing where the request
+ * controls are same for all the frames in this batch (batch mode). The HAL must support
+ * max batch size and the max batch size requirements defined by
+ * android.control.availableHighSpeedVideoConfigurations.
+ * 5. In this mode, the HAL must override aeMode, awbMode, and afMode to ON, ON, and
+ * CONTINUOUS_VIDEO, respectively. All post-processing block mode controls must be
+ * overridden to be FAST. Therefore, no manual control of capture and post-processing
+ * parameters is possible. All other controls operate the same as when
+ * android.control.mode == AUTO. This means that all other android.control.* fields
+ * must continue to work, such as
+ *
+ * android.control.aeTargetFpsRange
+ * android.control.aeExposureCompensation
+ * android.control.aeLock
+ * android.control.awbLock
+ * android.control.effectMode
+ * android.control.aeRegions
+ * android.control.afRegions
+ * android.control.awbRegions
+ * android.control.afTrigger
+ * android.control.aePrecaptureTrigger
+ *
+ * Outside of android.control.*, the following controls must work:
+ *
+ * android.flash.mode (TORCH mode only, automatic flash for still capture will not work
+ * since aeMode is ON)
+ * android.lens.opticalStabilizationMode (if it is supported)
+ * android.scaler.cropRegion
+ * android.statistics.faceDetectMode (if it is supported)
+ *
+ * For more details about high speed stream requirements, see
+ * android.control.availableHighSpeedVideoConfigurations and CONSTRAINED_HIGH_SPEED_VIDEO
+ * capability defined in android.request.availableCapabilities.
+ *
+ * This mode only needs to be supported by HALs that include CONSTRAINED_HIGH_SPEED_VIDEO in
+ * the android.request.availableCapabilities static metadata.
+ */
+ CAMERA3_STREAM_CONFIGURATION_CONSTRAINED_HIGH_SPEED_MODE = 1,
+
+ /**
+ * First value for vendor-defined stream configuration modes.
+ */
+ CAMERA3_VENDOR_STREAM_CONFIGURATION_MODE_START = 0x8000
+} camera3_stream_configuration_mode_t;
+
+/**
+ * camera3_stream_t:
+ *
+ * A handle to a single camera input or output stream. A stream is defined by
+ * the framework by its buffer resolution and format, and additionally by the
+ * HAL with the gralloc usage flags and the maximum in-flight buffer count.
+ *
+ * The stream structures are owned by the framework, but pointers to a
+ * camera3_stream passed into the HAL by configure_streams() are valid until the
+ * end of the first subsequent configure_streams() call that _does not_ include
+ * that camera3_stream as an argument, or until the end of the close() call.
+ *
+ * All camera3_stream framework-controlled members are immutable once the
+ * camera3_stream is passed into configure_streams(). The HAL may only change
+ * the HAL-controlled parameters during a configure_streams() call, except for
+ * the contents of the private pointer.
+ *
+ * If a configure_streams() call returns a non-fatal error, all active streams
+ * remain valid as if configure_streams() had not been called.
+ *
+ * The endpoint of the stream is not visible to the camera HAL device.
+ * In DEVICE_API_VERSION_3_1, this was changed to share consumer usage flags
+ * on streams where the camera is a producer (OUTPUT and BIDIRECTIONAL stream
+ * types) see the usage field below.
+ */
+typedef struct camera3_stream {
+
+ /*****
+ * Set by framework before configure_streams()
+ */
+
+ /**
+ * The type of the stream, one of the camera3_stream_type_t values.
+ */
+ int stream_type;
+
+ /**
+ * The width in pixels of the buffers in this stream
+ */
+ uint32_t width;
+
+ /**
+ * The height in pixels of the buffers in this stream
+ */
+ uint32_t height;
+
+ /**
+ * The pixel format for the buffers in this stream. Format is a value from
+ * the HAL_PIXEL_FORMAT_* list in system/core/include/system/graphics.h, or
+ * from device-specific headers.
+ *
+ * If HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED is used, then the platform
+ * gralloc module will select a format based on the usage flags provided by
+ * the camera device and the other endpoint of the stream.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * The camera HAL device must inspect the buffers handed to it in the
+ * subsequent register_stream_buffers() call to obtain the
+ * implementation-specific format details, if necessary.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * register_stream_buffers() won't be called by the framework, so the HAL
+ * should configure the ISP and sensor pipeline based purely on the sizes,
+ * usage flags, and formats for the configured streams.
+ */
+ int format;
+
+ /*****
+ * Set by HAL during configure_streams().
+ */
+
+ /**
+ * The gralloc usage flags for this stream, as needed by the HAL. The usage
+ * flags are defined in gralloc.h (GRALLOC_USAGE_*), or in device-specific
+ * headers.
+ *
+ * For output streams, these are the HAL's producer usage flags. For input
+ * streams, these are the HAL's consumer usage flags. The usage flags from
+ * the producer and the consumer will be combined together and then passed
+ * to the platform gralloc HAL module for allocating the gralloc buffers for
+ * each stream.
+ *
+ * Version information:
+ *
+ * == CAMERA_DEVICE_API_VERSION_3_0:
+ *
+ * No initial value guaranteed when passed via configure_streams().
+ * HAL may not use this field as input, and must write over this field
+ * with its usage flags.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * For stream_type OUTPUT and BIDIRECTIONAL, when passed via
+ * configure_streams(), the initial value of this is the consumer's
+ * usage flags. The HAL may use these consumer flags to decide stream
+ * configuration.
+ * For stream_type INPUT, when passed via configure_streams(), the initial
+ * value of this is 0.
+ * For all streams passed via configure_streams(), the HAL must write
+ * over this field with its usage flags.
+ */
+ uint32_t usage;
+
+ /**
+ * The maximum number of buffers the HAL device may need to have dequeued at
+ * the same time. The HAL device may not have more buffers in-flight from
+ * this stream than this value.
+ */
+ uint32_t max_buffers;
+
+ /**
+ * A handle to HAL-private information for the stream. Will not be inspected
+ * by the framework code.
+ */
+ void *priv;
+
+ /**
+ * A field that describes the contents of the buffer. The format and buffer
+ * dimensions define the memory layout and structure of the stream buffers,
+ * while dataSpace defines the meaning of the data within the buffer.
+ *
+ * For most formats, dataSpace defines the color space of the image data.
+ * In addition, for some formats, dataSpace indicates whether image- or
+ * depth-based data is requested. See system/core/include/system/graphics.h
+ * for details of formats and valid dataSpace values for each format.
+ *
+ * Version information:
+ *
+ * < CAMERA_DEVICE_API_VERSION_3_3:
+ *
+ * Not defined and should not be accessed. dataSpace should be assumed to
+ * be HAL_DATASPACE_UNKNOWN, and the appropriate color space, etc, should
+ * be determined from the usage flags and the format.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_3:
+ *
+ * Always set by the camera service. HAL must use this dataSpace to
+ * configure the stream to the correct colorspace, or to select between
+ * color and depth outputs if supported.
+ */
+ android_dataspace_t data_space;
+
+ /**
+ * The required output rotation of the stream, one of
+ * the camera3_stream_rotation_t values. This must be inspected by HAL along
+ * with stream width and height. For example, if the rotation is 90 degree
+ * and the stream width and height is 720 and 1280 respectively, camera service
+ * will supply buffers of size 720x1280, and HAL should capture a 1280x720 image
+ * and rotate the image by 90 degree counterclockwise. The rotation field is
+ * no-op when the stream type is input. Camera HAL must ignore the rotation
+ * field for an input stream.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Not defined and must not be accessed. HAL must not apply any rotation
+ * on output images.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_3:
+ *
+ * Always set by camera service. HAL must inspect this field during stream
+ * configuration and returns -EINVAL if HAL cannot perform such rotation.
+ * HAL must always support CAMERA3_STREAM_ROTATION_0, so a
+ * configure_streams() call must not fail for unsupported rotation if
+ * rotation field of all streams is CAMERA3_STREAM_ROTATION_0.
+ *
+ */
+ int rotation;
+
+ /* reserved for future use */
+ void *reserved[7];
+
+} camera3_stream_t;
+
+/**
+ * camera3_stream_configuration_t:
+ *
+ * A structure of stream definitions, used by configure_streams(). This
+ * structure defines all the output streams and the reprocessing input
+ * stream for the current camera use case.
+ */
+typedef struct camera3_stream_configuration {
+ /**
+ * The total number of streams requested by the framework. This includes
+ * both input and output streams. The number of streams will be at least 1,
+ * and there will be at least one output-capable stream.
+ */
+ uint32_t num_streams;
+
+ /**
+ * An array of camera stream pointers, defining the input/output
+ * configuration for the camera HAL device.
+ *
+ * At most one input-capable stream may be defined (INPUT or BIDIRECTIONAL)
+ * in a single configuration.
+ *
+ * At least one output-capable stream must be defined (OUTPUT or
+ * BIDIRECTIONAL).
+ */
+ camera3_stream_t **streams;
+
+ /**
+ * >= CAMERA_DEVICE_API_VERSION_3_3:
+ *
+ * The operation mode of streams in this configuration, one of the value defined in
+ * camera3_stream_configuration_mode_t.
+ * The HAL can use this mode as an indicator to set the stream property (e.g.,
+ * camera3_stream->max_buffers) appropriately. For example, if the configuration is
+ * CAMERA3_STREAM_CONFIGURATION_CONSTRAINED_HIGH_SPEED_MODE, the HAL may want to set aside more
+ * buffers for batch mode operation (see android.control.availableHighSpeedVideoConfigurations
+ * for batch mode definition).
+ *
+ */
+ uint32_t operation_mode;
+} camera3_stream_configuration_t;
+
+/**
+ * camera3_buffer_status_t:
+ *
+ * The current status of a single stream buffer.
+ */
+typedef enum camera3_buffer_status {
+ /**
+ * The buffer is in a normal state, and can be used after waiting on its
+ * sync fence.
+ */
+ CAMERA3_BUFFER_STATUS_OK = 0,
+
+ /**
+ * The buffer does not contain valid data, and the data in it should not be
+ * used. The sync fence must still be waited on before reusing the buffer.
+ */
+ CAMERA3_BUFFER_STATUS_ERROR = 1
+
+} camera3_buffer_status_t;
+
+/**
+ * camera3_stream_buffer_t:
+ *
+ * A single buffer from a camera3 stream. It includes a handle to its parent
+ * stream, the handle to the gralloc buffer itself, and sync fences
+ *
+ * The buffer does not specify whether it is to be used for input or output;
+ * that is determined by its parent stream type and how the buffer is passed to
+ * the HAL device.
+ */
+typedef struct camera3_stream_buffer {
+ /**
+ * The handle of the stream this buffer is associated with
+ */
+ camera3_stream_t *stream;
+
+ /**
+ * The native handle to the buffer
+ */
+ buffer_handle_t *buffer;
+
+ /**
+ * Current state of the buffer, one of the camera3_buffer_status_t
+ * values. The framework will not pass buffers to the HAL that are in an
+ * error state. In case a buffer could not be filled by the HAL, it must
+ * have its status set to CAMERA3_BUFFER_STATUS_ERROR when returned to the
+ * framework with process_capture_result().
+ */
+ int status;
+
+ /**
+ * The acquire sync fence for this buffer. The HAL must wait on this fence
+ * fd before attempting to read from or write to this buffer.
+ *
+ * The framework may be set to -1 to indicate that no waiting is necessary
+ * for this buffer.
+ *
+ * When the HAL returns an output buffer to the framework with
+ * process_capture_result(), the acquire_fence must be set to -1. If the HAL
+ * never waits on the acquire_fence due to an error in filling a buffer,
+ * when calling process_capture_result() the HAL must set the release_fence
+ * of the buffer to be the acquire_fence passed to it by the framework. This
+ * will allow the framework to wait on the fence before reusing the buffer.
+ *
+ * For input buffers, the HAL must not change the acquire_fence field during
+ * the process_capture_request() call.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * When the HAL returns an input buffer to the framework with
+ * process_capture_result(), the acquire_fence must be set to -1. If the HAL
+ * never waits on input buffer acquire fence due to an error, the sync
+ * fences should be handled similarly to the way they are handled for output
+ * buffers.
+ */
+ int acquire_fence;
+
+ /**
+ * The release sync fence for this buffer. The HAL must set this fence when
+ * returning buffers to the framework, or write -1 to indicate that no
+ * waiting is required for this buffer.
+ *
+ * For the output buffers, the fences must be set in the output_buffers
+ * array passed to process_capture_result().
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * For the input buffer, the release fence must be set by the
+ * process_capture_request() call.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * For the input buffer, the fences must be set in the input_buffer
+ * passed to process_capture_result().
+ *
+ * After signaling the release_fence for this buffer, the HAL
+ * should not make any further attempts to access this buffer as the
+ * ownership has been fully transferred back to the framework.
+ *
+ * If a fence of -1 was specified then the ownership of this buffer
+ * is transferred back immediately upon the call of process_capture_result.
+ */
+ int release_fence;
+
+} camera3_stream_buffer_t;
+
+/**
+ * camera3_stream_buffer_set_t:
+ *
+ * The complete set of gralloc buffers for a stream. This structure is given to
+ * register_stream_buffers() to allow the camera HAL device to register/map/etc
+ * newly allocated stream buffers.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Deprecated (and not used). In particular,
+ * register_stream_buffers is also deprecated and will never be invoked.
+ *
+ */
+typedef struct camera3_stream_buffer_set {
+ /**
+ * The stream handle for the stream these buffers belong to
+ */
+ camera3_stream_t *stream;
+
+ /**
+ * The number of buffers in this stream. It is guaranteed to be at least
+ * stream->max_buffers.
+ */
+ uint32_t num_buffers;
+
+ /**
+ * The array of gralloc buffer handles for this stream. If the stream format
+ * is set to HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, the camera HAL device
+ * should inspect the passed-in buffers to determine any platform-private
+ * pixel format information.
+ */
+ buffer_handle_t **buffers;
+
+} camera3_stream_buffer_set_t;
+
+/**
+ * camera3_jpeg_blob:
+ *
+ * Transport header for compressed JPEG buffers in output streams.
+ *
+ * To capture JPEG images, a stream is created using the pixel format
+ * HAL_PIXEL_FORMAT_BLOB. The buffer size for the stream is calculated by the
+ * framework, based on the static metadata field android.jpeg.maxSize. Since
+ * compressed JPEG images are of variable size, the HAL needs to include the
+ * final size of the compressed image using this structure inside the output
+ * stream buffer. The JPEG blob ID field must be set to CAMERA3_JPEG_BLOB_ID.
+ *
+ * Transport header should be at the end of the JPEG output stream buffer. That
+ * means the jpeg_blob_id must start at byte[buffer_size -
+ * sizeof(camera3_jpeg_blob)], where the buffer_size is the size of gralloc buffer.
+ * Any HAL using this transport header must account for it in android.jpeg.maxSize
+ * The JPEG data itself starts at the beginning of the buffer and should be
+ * jpeg_size bytes long.
+ */
+typedef struct camera3_jpeg_blob {
+ uint16_t jpeg_blob_id;
+ uint32_t jpeg_size;
+} camera3_jpeg_blob_t;
+
+enum {
+ CAMERA3_JPEG_BLOB_ID = 0x00FF
+};
+
+/**********************************************************************
+ *
+ * Message definitions for the HAL notify() callback.
+ *
+ * These definitions are used for the HAL notify callback, to signal
+ * asynchronous events from the HAL device to the Android framework.
+ *
+ */
+
+/**
+ * camera3_msg_type:
+ *
+ * Indicates the type of message sent, which specifies which member of the
+ * message union is valid.
+ *
+ */
+typedef enum camera3_msg_type {
+ /**
+ * An error has occurred. camera3_notify_msg.message.error contains the
+ * error information.
+ */
+ CAMERA3_MSG_ERROR = 1,
+
+ /**
+ * The exposure of a given request or processing a reprocess request has
+ * begun. camera3_notify_msg.message.shutter contains the information
+ * the capture.
+ */
+ CAMERA3_MSG_SHUTTER = 2,
+
+ /**
+ * Number of framework message types
+ */
+ CAMERA3_NUM_MESSAGES
+
+} camera3_msg_type_t;
+
+/**
+ * Defined error codes for CAMERA_MSG_ERROR
+ */
+typedef enum camera3_error_msg_code {
+ /**
+ * A serious failure occured. No further frames or buffer streams will
+ * be produced by the device. Device should be treated as closed. The
+ * client must reopen the device to use it again. The frame_number field
+ * is unused.
+ */
+ CAMERA3_MSG_ERROR_DEVICE = 1,
+
+ /**
+ * An error has occurred in processing a request. No output (metadata or
+ * buffers) will be produced for this request. The frame_number field
+ * specifies which request has been dropped. Subsequent requests are
+ * unaffected, and the device remains operational.
+ */
+ CAMERA3_MSG_ERROR_REQUEST = 2,
+
+ /**
+ * An error has occurred in producing an output result metadata buffer
+ * for a request, but output stream buffers for it will still be
+ * available. Subsequent requests are unaffected, and the device remains
+ * operational. The frame_number field specifies the request for which
+ * result metadata won't be available.
+ */
+ CAMERA3_MSG_ERROR_RESULT = 3,
+
+ /**
+ * An error has occurred in placing an output buffer into a stream for a
+ * request. The frame metadata and other buffers may still be
+ * available. Subsequent requests are unaffected, and the device remains
+ * operational. The frame_number field specifies the request for which the
+ * buffer was dropped, and error_stream contains a pointer to the stream
+ * that dropped the frame.u
+ */
+ CAMERA3_MSG_ERROR_BUFFER = 4,
+
+ /**
+ * Number of error types
+ */
+ CAMERA3_MSG_NUM_ERRORS
+
+} camera3_error_msg_code_t;
+
+/**
+ * camera3_error_msg_t:
+ *
+ * Message contents for CAMERA3_MSG_ERROR
+ */
+typedef struct camera3_error_msg {
+ /**
+ * Frame number of the request the error applies to. 0 if the frame number
+ * isn't applicable to the error.
+ */
+ uint32_t frame_number;
+
+ /**
+ * Pointer to the stream that had a failure. NULL if the stream isn't
+ * applicable to the error.
+ */
+ camera3_stream_t *error_stream;
+
+ /**
+ * The code for this error; one of the CAMERA_MSG_ERROR enum values.
+ */
+ int error_code;
+
+} camera3_error_msg_t;
+
+/**
+ * camera3_shutter_msg_t:
+ *
+ * Message contents for CAMERA3_MSG_SHUTTER
+ */
+typedef struct camera3_shutter_msg {
+ /**
+ * Frame number of the request that has begun exposure or reprocessing.
+ */
+ uint32_t frame_number;
+
+ /**
+ * Timestamp for the start of capture. For a reprocess request, this must
+ * be input image's start of capture. This must match the capture result
+ * metadata's sensor exposure start timestamp.
+ */
+ uint64_t timestamp;
+
+} camera3_shutter_msg_t;
+
+/**
+ * camera3_notify_msg_t:
+ *
+ * The message structure sent to camera3_callback_ops_t.notify()
+ */
+typedef struct camera3_notify_msg {
+
+ /**
+ * The message type. One of camera3_notify_msg_type, or a private extension.
+ */
+ int type;
+
+ union {
+ /**
+ * Error message contents. Valid if type is CAMERA3_MSG_ERROR
+ */
+ camera3_error_msg_t error;
+
+ /**
+ * Shutter message contents. Valid if type is CAMERA3_MSG_SHUTTER
+ */
+ camera3_shutter_msg_t shutter;
+
+ /**
+ * Generic message contents. Used to ensure a minimum size for custom
+ * message types.
+ */
+ uint8_t generic[32];
+ } message;
+
+} camera3_notify_msg_t;
+
+/**********************************************************************
+ *
+ * Capture request/result definitions for the HAL process_capture_request()
+ * method, and the process_capture_result() callback.
+ *
+ */
+
+/**
+ * camera3_request_template_t:
+ *
+ * Available template types for
+ * camera3_device_ops.construct_default_request_settings()
+ */
+typedef enum camera3_request_template {
+ /**
+ * Standard camera preview operation with 3A on auto.
+ */
+ CAMERA3_TEMPLATE_PREVIEW = 1,
+
+ /**
+ * Standard camera high-quality still capture with 3A and flash on auto.
+ */
+ CAMERA3_TEMPLATE_STILL_CAPTURE = 2,
+
+ /**
+ * Standard video recording plus preview with 3A on auto, torch off.
+ */
+ CAMERA3_TEMPLATE_VIDEO_RECORD = 3,
+
+ /**
+ * High-quality still capture while recording video. Application will
+ * include preview, video record, and full-resolution YUV or JPEG streams in
+ * request. Must not cause stuttering on video stream. 3A on auto.
+ */
+ CAMERA3_TEMPLATE_VIDEO_SNAPSHOT = 4,
+
+ /**
+ * Zero-shutter-lag mode. Application will request preview and
+ * full-resolution data for each frame, and reprocess it to JPEG when a
+ * still image is requested by user. Settings should provide highest-quality
+ * full-resolution images without compromising preview frame rate. 3A on
+ * auto.
+ */
+ CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG = 5,
+
+ /**
+ * A basic template for direct application control of capture
+ * parameters. All automatic control is disabled (auto-exposure, auto-white
+ * balance, auto-focus), and post-processing parameters are set to preview
+ * quality. The manual capture parameters (exposure, sensitivity, etc.)
+ * are set to reasonable defaults, but should be overridden by the
+ * application depending on the intended use case.
+ */
+ CAMERA3_TEMPLATE_MANUAL = 6,
+
+ /* Total number of templates */
+ CAMERA3_TEMPLATE_COUNT,
+
+ /**
+ * First value for vendor-defined request templates
+ */
+ CAMERA3_VENDOR_TEMPLATE_START = 0x40000000
+
+} camera3_request_template_t;
+
+/**
+ * camera3_capture_request_t:
+ *
+ * A single request for image capture/buffer reprocessing, sent to the Camera
+ * HAL device by the framework in process_capture_request().
+ *
+ * The request contains the settings to be used for this capture, and the set of
+ * output buffers to write the resulting image data in. It may optionally
+ * contain an input buffer, in which case the request is for reprocessing that
+ * input buffer instead of capturing a new image with the camera sensor. The
+ * capture is identified by the frame_number.
+ *
+ * In response, the camera HAL device must send a camera3_capture_result
+ * structure asynchronously to the framework, using the process_capture_result()
+ * callback.
+ */
+typedef struct camera3_capture_request {
+ /**
+ * The frame number is an incrementing integer set by the framework to
+ * uniquely identify this capture. It needs to be returned in the result
+ * call, and is also used to identify the request in asynchronous
+ * notifications sent to camera3_callback_ops_t.notify().
+ */
+ uint32_t frame_number;
+
+ /**
+ * The settings buffer contains the capture and processing parameters for
+ * the request. As a special case, a NULL settings buffer indicates that the
+ * settings are identical to the most-recently submitted capture request. A
+ * NULL buffer cannot be used as the first submitted request after a
+ * configure_streams() call.
+ */
+ const camera_metadata_t *settings;
+
+ /**
+ * The input stream buffer to use for this request, if any.
+ *
+ * If input_buffer is NULL, then the request is for a new capture from the
+ * imager. If input_buffer is valid, the request is for reprocessing the
+ * image contained in input_buffer.
+ *
+ * In the latter case, the HAL must set the release_fence of the
+ * input_buffer to a valid sync fence, or to -1 if the HAL does not support
+ * sync, before process_capture_request() returns.
+ *
+ * The HAL is required to wait on the acquire sync fence of the input buffer
+ * before accessing it.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * Any input buffer included here will have been registered with the HAL
+ * through register_stream_buffers() before its inclusion in a request.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * The buffers will not have been pre-registered with the HAL.
+ * Subsequent requests may reuse buffers, or provide entirely new buffers.
+ */
+ camera3_stream_buffer_t *input_buffer;
+
+ /**
+ * The number of output buffers for this capture request. Must be at least
+ * 1.
+ */
+ uint32_t num_output_buffers;
+
+ /**
+ * An array of num_output_buffers stream buffers, to be filled with image
+ * data from this capture/reprocess. The HAL must wait on the acquire fences
+ * of each stream buffer before writing to them.
+ *
+ * The HAL takes ownership of the actual buffer_handle_t entries in
+ * output_buffers; the framework does not access them until they are
+ * returned in a camera3_capture_result_t.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * All the buffers included here will have been registered with the HAL
+ * through register_stream_buffers() before their inclusion in a request.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Any or all of the buffers included here may be brand new in this
+ * request (having never before seen by the HAL).
+ */
+ const camera3_stream_buffer_t *output_buffers;
+
+} camera3_capture_request_t;
+
+/**
+ * camera3_capture_result_t:
+ *
+ * The result of a single capture/reprocess by the camera HAL device. This is
+ * sent to the framework asynchronously with process_capture_result(), in
+ * response to a single capture request sent to the HAL with
+ * process_capture_request(). Multiple process_capture_result() calls may be
+ * performed by the HAL for each request.
+ *
+ * Each call, all with the same frame
+ * number, may contain some subset of the output buffers, and/or the result
+ * metadata. The metadata may only be provided once for a given frame number;
+ * all other calls must set the result metadata to NULL.
+ *
+ * The result structure contains the output metadata from this capture, and the
+ * set of output buffers that have been/will be filled for this capture. Each
+ * output buffer may come with a release sync fence that the framework will wait
+ * on before reading, in case the buffer has not yet been filled by the HAL.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * The metadata may be provided multiple times for a single frame number. The
+ * framework will accumulate together the final result set by combining each
+ * partial result together into the total result set.
+ *
+ * If an input buffer is given in a request, the HAL must return it in one of
+ * the process_capture_result calls, and the call may be to just return the input
+ * buffer, without metadata and output buffers; the sync fences must be handled
+ * the same way they are done for output buffers.
+ *
+ *
+ * Performance considerations:
+ *
+ * Applications will also receive these partial results immediately, so sending
+ * partial results is a highly recommended performance optimization to avoid
+ * the total pipeline latency before sending the results for what is known very
+ * early on in the pipeline.
+ *
+ * A typical use case might be calculating the AF state halfway through the
+ * pipeline; by sending the state back to the framework immediately, we get a
+ * 50% performance increase and perceived responsiveness of the auto-focus.
+ *
+ */
+typedef struct camera3_capture_result {
+ /**
+ * The frame number is an incrementing integer set by the framework in the
+ * submitted request to uniquely identify this capture. It is also used to
+ * identify the request in asynchronous notifications sent to
+ * camera3_callback_ops_t.notify().
+ */
+ uint32_t frame_number;
+
+ /**
+ * The result metadata for this capture. This contains information about the
+ * final capture parameters, the state of the capture and post-processing
+ * hardware, the state of the 3A algorithms, if enabled, and the output of
+ * any enabled statistics units.
+ *
+ * Only one call to process_capture_result() with a given frame_number may
+ * include the result metadata. All other calls for the same frame_number
+ * must set this to NULL.
+ *
+ * If there was an error producing the result metadata, result must be an
+ * empty metadata buffer, and notify() must be called with ERROR_RESULT.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Multiple calls to process_capture_result() with a given frame_number
+ * may include the result metadata.
+ *
+ * Partial metadata submitted should not include any metadata key returned
+ * in a previous partial result for a given frame. Each new partial result
+ * for that frame must also set a distinct partial_result value.
+ *
+ * If notify has been called with ERROR_RESULT, all further partial
+ * results for that frame are ignored by the framework.
+ */
+ const camera_metadata_t *result;
+
+ /**
+ * The number of output buffers returned in this result structure. Must be
+ * less than or equal to the matching capture request's count. If this is
+ * less than the buffer count in the capture request, at least one more call
+ * to process_capture_result with the same frame_number must be made, to
+ * return the remaining output buffers to the framework. This may only be
+ * zero if the structure includes valid result metadata or an input buffer
+ * is returned in this result.
+ */
+ uint32_t num_output_buffers;
+
+ /**
+ * The handles for the output stream buffers for this capture. They may not
+ * yet be filled at the time the HAL calls process_capture_result(); the
+ * framework will wait on the release sync fences provided by the HAL before
+ * reading the buffers.
+ *
+ * The HAL must set the stream buffer's release sync fence to a valid sync
+ * fd, or to -1 if the buffer has already been filled.
+ *
+ * If the HAL encounters an error while processing the buffer, and the
+ * buffer is not filled, the buffer's status field must be set to
+ * CAMERA3_BUFFER_STATUS_ERROR. If the HAL did not wait on the acquire fence
+ * before encountering the error, the acquire fence should be copied into
+ * the release fence, to allow the framework to wait on the fence before
+ * reusing the buffer.
+ *
+ * The acquire fence must be set to -1 for all output buffers. If
+ * num_output_buffers is zero, this may be NULL. In that case, at least one
+ * more process_capture_result call must be made by the HAL to provide the
+ * output buffers.
+ *
+ * When process_capture_result is called with a new buffer for a frame,
+ * all previous frames' buffers for that corresponding stream must have been
+ * already delivered (the fences need not have yet been signaled).
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Gralloc buffers for a frame may be sent to framework before the
+ * corresponding SHUTTER-notify.
+ *
+ * Performance considerations:
+ *
+ * Buffers delivered to the framework will not be dispatched to the
+ * application layer until a start of exposure timestamp has been received
+ * via a SHUTTER notify() call. It is highly recommended to
+ * dispatch that call as early as possible.
+ */
+ const camera3_stream_buffer_t *output_buffers;
+
+ /**
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * The handle for the input stream buffer for this capture. It may not
+ * yet be consumed at the time the HAL calls process_capture_result(); the
+ * framework will wait on the release sync fences provided by the HAL before
+ * reusing the buffer.
+ *
+ * The HAL should handle the sync fences the same way they are done for
+ * output_buffers.
+ *
+ * Only one input buffer is allowed to be sent per request. Similarly to
+ * output buffers, the ordering of returned input buffers must be
+ * maintained by the HAL.
+ *
+ * Performance considerations:
+ *
+ * The input buffer should be returned as early as possible. If the HAL
+ * supports sync fences, it can call process_capture_result to hand it back
+ * with sync fences being set appropriately. If the sync fences are not
+ * supported, the buffer can only be returned when it is consumed, which
+ * may take long time; the HAL may choose to copy this input buffer to make
+ * the buffer return sooner.
+ */
+ const camera3_stream_buffer_t *input_buffer;
+
+ /**
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * In order to take advantage of partial results, the HAL must set the
+ * static metadata android.request.partialResultCount to the number of
+ * partial results it will send for each frame.
+ *
+ * Each new capture result with a partial result must set
+ * this field (partial_result) to a distinct inclusive value between
+ * 1 and android.request.partialResultCount.
+ *
+ * HALs not wishing to take advantage of this feature must not
+ * set an android.request.partialResultCount or partial_result to a value
+ * other than 1.
+ *
+ * This value must be set to 0 when a capture result contains buffers only
+ * and no metadata.
+ */
+ uint32_t partial_result;
+
+} camera3_capture_result_t;
+
+/**********************************************************************
+ *
+ * Callback methods for the HAL to call into the framework.
+ *
+ * These methods are used to return metadata and image buffers for a completed
+ * or failed captures, and to notify the framework of asynchronous events such
+ * as errors.
+ *
+ * The framework will not call back into the HAL from within these callbacks,
+ * and these calls will not block for extended periods.
+ *
+ */
+typedef struct camera3_callback_ops {
+
+ /**
+ * process_capture_result:
+ *
+ * Send results from a completed capture to the framework.
+ * process_capture_result() may be invoked multiple times by the HAL in
+ * response to a single capture request. This allows, for example, the
+ * metadata and low-resolution buffers to be returned in one call, and
+ * post-processed JPEG buffers in a later call, once it is available. Each
+ * call must include the frame number of the request it is returning
+ * metadata or buffers for.
+ *
+ * A component (buffer or metadata) of the complete result may only be
+ * included in one process_capture_result call. A buffer for each stream,
+ * and the result metadata, must be returned by the HAL for each request in
+ * one of the process_capture_result calls, even in case of errors producing
+ * some of the output. A call to process_capture_result() with neither
+ * output buffers or result metadata is not allowed.
+ *
+ * The order of returning metadata and buffers for a single result does not
+ * matter, but buffers for a given stream must be returned in FIFO order. So
+ * the buffer for request 5 for stream A must always be returned before the
+ * buffer for request 6 for stream A. This also applies to the result
+ * metadata; the metadata for request 5 must be returned before the metadata
+ * for request 6.
+ *
+ * However, different streams are independent of each other, so it is
+ * acceptable and expected that the buffer for request 5 for stream A may be
+ * returned after the buffer for request 6 for stream B is. And it is
+ * acceptable that the result metadata for request 6 for stream B is
+ * returned before the buffer for request 5 for stream A is.
+ *
+ * The HAL retains ownership of result structure, which only needs to be
+ * valid to access during this call. The framework will copy whatever it
+ * needs before this call returns.
+ *
+ * The output buffers do not need to be filled yet; the framework will wait
+ * on the stream buffer release sync fence before reading the buffer
+ * data. Therefore, this method should be called by the HAL as soon as
+ * possible, even if some or all of the output buffers are still in
+ * being filled. The HAL must include valid release sync fences into each
+ * output_buffers stream buffer entry, or -1 if that stream buffer is
+ * already filled.
+ *
+ * If the result buffer cannot be constructed for a request, the HAL should
+ * return an empty metadata buffer, but still provide the output buffers and
+ * their sync fences. In addition, notify() must be called with an
+ * ERROR_RESULT message.
+ *
+ * If an output buffer cannot be filled, its status field must be set to
+ * STATUS_ERROR. In addition, notify() must be called with a ERROR_BUFFER
+ * message.
+ *
+ * If the entire capture has failed, then this method still needs to be
+ * called to return the output buffers to the framework. All the buffer
+ * statuses should be STATUS_ERROR, and the result metadata should be an
+ * empty buffer. In addition, notify() must be called with a ERROR_REQUEST
+ * message. In this case, individual ERROR_RESULT/ERROR_BUFFER messages
+ * should not be sent.
+ *
+ * Performance requirements:
+ *
+ * This is a non-blocking call. The framework will return this call in 5ms.
+ *
+ * The pipeline latency (see S7 for definition) should be less than or equal to
+ * 4 frame intervals, and must be less than or equal to 8 frame intervals.
+ *
+ */
+ void (*process_capture_result)(const struct camera3_callback_ops *,
+ const camera3_capture_result_t *result);
+
+ /**
+ * notify:
+ *
+ * Asynchronous notification callback from the HAL, fired for various
+ * reasons. Only for information independent of frame capture, or that
+ * require specific timing. The ownership of the message structure remains
+ * with the HAL, and the msg only needs to be valid for the duration of this
+ * call.
+ *
+ * Multiple threads may call notify() simultaneously.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * The notification for the start of exposure for a given request must be
+ * sent by the HAL before the first call to process_capture_result() for
+ * that request is made.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Buffers delivered to the framework will not be dispatched to the
+ * application layer until a start of exposure timestamp (or input image's
+ * start of exposure timestamp for a reprocess request) has been received
+ * via a SHUTTER notify() call. It is highly recommended to dispatch this
+ * call as early as possible.
+ *
+ * ------------------------------------------------------------------------
+ * Performance requirements:
+ *
+ * This is a non-blocking call. The framework will return this call in 5ms.
+ */
+ void (*notify)(const struct camera3_callback_ops *,
+ const camera3_notify_msg_t *msg);
+
+} camera3_callback_ops_t;
+
+/**********************************************************************
+ *
+ * Camera device operations
+ *
+ */
+typedef struct camera3_device_ops {
+
+ /**
+ * initialize:
+ *
+ * One-time initialization to pass framework callback function pointers to
+ * the HAL. Will be called once after a successful open() call, before any
+ * other functions are called on the camera3_device_ops structure.
+ *
+ * Performance requirements:
+ *
+ * This should be a non-blocking call. The HAL should return from this call
+ * in 5ms, and must return from this call in 10ms.
+ *
+ * Return values:
+ *
+ * 0: On successful initialization
+ *
+ * -ENODEV: If initialization fails. Only close() can be called successfully
+ * by the framework after this.
+ */
+ int (*initialize)(const struct camera3_device *,
+ const camera3_callback_ops_t *callback_ops);
+
+ /**********************************************************************
+ * Stream management
+ */
+
+ /**
+ * configure_streams:
+ *
+ * CAMERA_DEVICE_API_VERSION_3_0 only:
+ *
+ * Reset the HAL camera device processing pipeline and set up new input and
+ * output streams. This call replaces any existing stream configuration with
+ * the streams defined in the stream_list. This method will be called at
+ * least once after initialize() before a request is submitted with
+ * process_capture_request().
+ *
+ * The stream_list must contain at least one output-capable stream, and may
+ * not contain more than one input-capable stream.
+ *
+ * The stream_list may contain streams that are also in the currently-active
+ * set of streams (from the previous call to configure_stream()). These
+ * streams will already have valid values for usage, max_buffers, and the
+ * private pointer.
+ *
+ * If such a stream has already had its buffers registered,
+ * register_stream_buffers() will not be called again for the stream, and
+ * buffers from the stream can be immediately included in input requests.
+ *
+ * If the HAL needs to change the stream configuration for an existing
+ * stream due to the new configuration, it may rewrite the values of usage
+ * and/or max_buffers during the configure call.
+ *
+ * The framework will detect such a change, and will then reallocate the
+ * stream buffers, and call register_stream_buffers() again before using
+ * buffers from that stream in a request.
+ *
+ * If a currently-active stream is not included in stream_list, the HAL may
+ * safely remove any references to that stream. It will not be reused in a
+ * later configure() call by the framework, and all the gralloc buffers for
+ * it will be freed after the configure_streams() call returns.
+ *
+ * The stream_list structure is owned by the framework, and may not be
+ * accessed once this call completes. The address of an individual
+ * camera3_stream_t structure will remain valid for access by the HAL until
+ * the end of the first configure_stream() call which no longer includes
+ * that camera3_stream_t in the stream_list argument. The HAL may not change
+ * values in the stream structure outside of the private pointer, except for
+ * the usage and max_buffers members during the configure_streams() call
+ * itself.
+ *
+ * If the stream is new, the usage, max_buffer, and private pointer fields
+ * of the stream structure will all be set to 0. The HAL device must set
+ * these fields before the configure_streams() call returns. These fields
+ * are then used by the framework and the platform gralloc module to
+ * allocate the gralloc buffers for each stream.
+ *
+ * Before such a new stream can have its buffers included in a capture
+ * request, the framework will call register_stream_buffers() with that
+ * stream. However, the framework is not required to register buffers for
+ * _all_ streams before submitting a request. This allows for quick startup
+ * of (for example) a preview stream, with allocation for other streams
+ * happening later or concurrently.
+ *
+ * ------------------------------------------------------------------------
+ * CAMERA_DEVICE_API_VERSION_3_1 only:
+ *
+ * Reset the HAL camera device processing pipeline and set up new input and
+ * output streams. This call replaces any existing stream configuration with
+ * the streams defined in the stream_list. This method will be called at
+ * least once after initialize() before a request is submitted with
+ * process_capture_request().
+ *
+ * The stream_list must contain at least one output-capable stream, and may
+ * not contain more than one input-capable stream.
+ *
+ * The stream_list may contain streams that are also in the currently-active
+ * set of streams (from the previous call to configure_stream()). These
+ * streams will already have valid values for usage, max_buffers, and the
+ * private pointer.
+ *
+ * If such a stream has already had its buffers registered,
+ * register_stream_buffers() will not be called again for the stream, and
+ * buffers from the stream can be immediately included in input requests.
+ *
+ * If the HAL needs to change the stream configuration for an existing
+ * stream due to the new configuration, it may rewrite the values of usage
+ * and/or max_buffers during the configure call.
+ *
+ * The framework will detect such a change, and will then reallocate the
+ * stream buffers, and call register_stream_buffers() again before using
+ * buffers from that stream in a request.
+ *
+ * If a currently-active stream is not included in stream_list, the HAL may
+ * safely remove any references to that stream. It will not be reused in a
+ * later configure() call by the framework, and all the gralloc buffers for
+ * it will be freed after the configure_streams() call returns.
+ *
+ * The stream_list structure is owned by the framework, and may not be
+ * accessed once this call completes. The address of an individual
+ * camera3_stream_t structure will remain valid for access by the HAL until
+ * the end of the first configure_stream() call which no longer includes
+ * that camera3_stream_t in the stream_list argument. The HAL may not change
+ * values in the stream structure outside of the private pointer, except for
+ * the usage and max_buffers members during the configure_streams() call
+ * itself.
+ *
+ * If the stream is new, max_buffer, and private pointer fields of the
+ * stream structure will all be set to 0. The usage will be set to the
+ * consumer usage flags. The HAL device must set these fields before the
+ * configure_streams() call returns. These fields are then used by the
+ * framework and the platform gralloc module to allocate the gralloc
+ * buffers for each stream.
+ *
+ * Before such a new stream can have its buffers included in a capture
+ * request, the framework will call register_stream_buffers() with that
+ * stream. However, the framework is not required to register buffers for
+ * _all_ streams before submitting a request. This allows for quick startup
+ * of (for example) a preview stream, with allocation for other streams
+ * happening later or concurrently.
+ *
+ * ------------------------------------------------------------------------
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * Reset the HAL camera device processing pipeline and set up new input and
+ * output streams. This call replaces any existing stream configuration with
+ * the streams defined in the stream_list. This method will be called at
+ * least once after initialize() before a request is submitted with
+ * process_capture_request().
+ *
+ * The stream_list must contain at least one output-capable stream, and may
+ * not contain more than one input-capable stream.
+ *
+ * The stream_list may contain streams that are also in the currently-active
+ * set of streams (from the previous call to configure_stream()). These
+ * streams will already have valid values for usage, max_buffers, and the
+ * private pointer.
+ *
+ * If the HAL needs to change the stream configuration for an existing
+ * stream due to the new configuration, it may rewrite the values of usage
+ * and/or max_buffers during the configure call.
+ *
+ * The framework will detect such a change, and may then reallocate the
+ * stream buffers before using buffers from that stream in a request.
+ *
+ * If a currently-active stream is not included in stream_list, the HAL may
+ * safely remove any references to that stream. It will not be reused in a
+ * later configure() call by the framework, and all the gralloc buffers for
+ * it will be freed after the configure_streams() call returns.
+ *
+ * The stream_list structure is owned by the framework, and may not be
+ * accessed once this call completes. The address of an individual
+ * camera3_stream_t structure will remain valid for access by the HAL until
+ * the end of the first configure_stream() call which no longer includes
+ * that camera3_stream_t in the stream_list argument. The HAL may not change
+ * values in the stream structure outside of the private pointer, except for
+ * the usage and max_buffers members during the configure_streams() call
+ * itself.
+ *
+ * If the stream is new, max_buffer, and private pointer fields of the
+ * stream structure will all be set to 0. The usage will be set to the
+ * consumer usage flags. The HAL device must set these fields before the
+ * configure_streams() call returns. These fields are then used by the
+ * framework and the platform gralloc module to allocate the gralloc
+ * buffers for each stream.
+ *
+ * Newly allocated buffers may be included in a capture request at any time
+ * by the framework. Once a gralloc buffer is returned to the framework
+ * with process_capture_result (and its respective release_fence has been
+ * signaled) the framework may free or reuse it at any time.
+ *
+ * ------------------------------------------------------------------------
+ *
+ * Preconditions:
+ *
+ * The framework will only call this method when no captures are being
+ * processed. That is, all results have been returned to the framework, and
+ * all in-flight input and output buffers have been returned and their
+ * release sync fences have been signaled by the HAL. The framework will not
+ * submit new requests for capture while the configure_streams() call is
+ * underway.
+ *
+ * Postconditions:
+ *
+ * The HAL device must configure itself to provide maximum possible output
+ * frame rate given the sizes and formats of the output streams, as
+ * documented in the camera device's static metadata.
+ *
+ * Performance requirements:
+ *
+ * This call is expected to be heavyweight and possibly take several hundred
+ * milliseconds to complete, since it may require resetting and
+ * reconfiguring the image sensor and the camera processing pipeline.
+ * Nevertheless, the HAL device should attempt to minimize the
+ * reconfiguration delay to minimize the user-visible pauses during
+ * application operational mode changes (such as switching from still
+ * capture to video recording).
+ *
+ * The HAL should return from this call in 500ms, and must return from this
+ * call in 1000ms.
+ *
+ * Return values:
+ *
+ * 0: On successful stream configuration
+ *
+ * -EINVAL: If the requested stream configuration is invalid. Some examples
+ * of invalid stream configurations include:
+ *
+ * - Including more than 1 input-capable stream (INPUT or
+ * BIDIRECTIONAL)
+ *
+ * - Not including any output-capable streams (OUTPUT or
+ * BIDIRECTIONAL)
+ *
+ * - Including streams with unsupported formats, or an unsupported
+ * size for that format.
+ *
+ * - Including too many output streams of a certain format.
+ *
+ * - Unsupported rotation configuration (only applies to
+ * devices with version >= CAMERA_DEVICE_API_VERSION_3_3)
+ *
+ * - Stream sizes/formats don't satisfy the
+ * camera3_stream_configuration_t->operation_mode requirements for non-NORMAL mode,
+ * or the requested operation_mode is not supported by the HAL.
+ * (only applies to devices with version >= CAMERA_DEVICE_API_VERSION_3_3)
+ *
+ * Note that the framework submitting an invalid stream
+ * configuration is not normal operation, since stream
+ * configurations are checked before configure. An invalid
+ * configuration means that a bug exists in the framework code, or
+ * there is a mismatch between the HAL's static metadata and the
+ * requirements on streams.
+ *
+ * -ENODEV: If there has been a fatal error and the device is no longer
+ * operational. Only close() can be called successfully by the
+ * framework after this error is returned.
+ */
+ int (*configure_streams)(const struct camera3_device *,
+ camera3_stream_configuration_t *stream_list);
+
+ /**
+ * register_stream_buffers:
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * DEPRECATED. This will not be called and must be set to NULL.
+ *
+ * <= CAMERA_DEVICE_API_VERSION_3_1:
+ *
+ * Register buffers for a given stream with the HAL device. This method is
+ * called by the framework after a new stream is defined by
+ * configure_streams, and before buffers from that stream are included in a
+ * capture request. If the same stream is listed in a subsequent
+ * configure_streams() call, register_stream_buffers will _not_ be called
+ * again for that stream.
+ *
+ * The framework does not need to register buffers for all configured
+ * streams before it submits the first capture request. This allows quick
+ * startup for preview (or similar use cases) while other streams are still
+ * being allocated.
+ *
+ * This method is intended to allow the HAL device to map or otherwise
+ * prepare the buffers for later use. The buffers passed in will already be
+ * locked for use. At the end of the call, all the buffers must be ready to
+ * be returned to the stream. The buffer_set argument is only valid for the
+ * duration of this call.
+ *
+ * If the stream format was set to HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ * the camera HAL should inspect the passed-in buffers here to determine any
+ * platform-private pixel format information.
+ *
+ * Performance requirements:
+ *
+ * This should be a non-blocking call. The HAL should return from this call
+ * in 1ms, and must return from this call in 5ms.
+ *
+ * Return values:
+ *
+ * 0: On successful registration of the new stream buffers
+ *
+ * -EINVAL: If the stream_buffer_set does not refer to a valid active
+ * stream, or if the buffers array is invalid.
+ *
+ * -ENOMEM: If there was a failure in registering the buffers. The framework
+ * must consider all the stream buffers to be unregistered, and can
+ * try to register again later.
+ *
+ * -ENODEV: If there is a fatal error, and the device is no longer
+ * operational. Only close() can be called successfully by the
+ * framework after this error is returned.
+ */
+ int (*register_stream_buffers)(const struct camera3_device *,
+ const camera3_stream_buffer_set_t *buffer_set);
+
+ /**********************************************************************
+ * Request creation and submission
+ */
+
+ /**
+ * construct_default_request_settings:
+ *
+ * Create capture settings for standard camera use cases.
+ *
+ * The device must return a settings buffer that is configured to meet the
+ * requested use case, which must be one of the CAMERA3_TEMPLATE_*
+ * enums. All request control fields must be included.
+ *
+ * The HAL retains ownership of this structure, but the pointer to the
+ * structure must be valid until the device is closed. The framework and the
+ * HAL may not modify the buffer once it is returned by this call. The same
+ * buffer may be returned for subsequent calls for the same template, or for
+ * other templates.
+ *
+ * Performance requirements:
+ *
+ * This should be a non-blocking call. The HAL should return from this call
+ * in 1ms, and must return from this call in 5ms.
+ *
+ * Return values:
+ *
+ * Valid metadata: On successful creation of a default settings
+ * buffer.
+ *
+ * NULL: In case of a fatal error. After this is returned, only
+ * the close() method can be called successfully by the
+ * framework.
+ */
+ const camera_metadata_t* (*construct_default_request_settings)(
+ const struct camera3_device *,
+ int type);
+
+ /**
+ * process_capture_request:
+ *
+ * Send a new capture request to the HAL. The HAL should not return from
+ * this call until it is ready to accept the next request to process. Only
+ * one call to process_capture_request() will be made at a time by the
+ * framework, and the calls will all be from the same thread. The next call
+ * to process_capture_request() will be made as soon as a new request and
+ * its associated buffers are available. In a normal preview scenario, this
+ * means the function will be called again by the framework almost
+ * instantly.
+ *
+ * The actual request processing is asynchronous, with the results of
+ * capture being returned by the HAL through the process_capture_result()
+ * call. This call requires the result metadata to be available, but output
+ * buffers may simply provide sync fences to wait on. Multiple requests are
+ * expected to be in flight at once, to maintain full output frame rate.
+ *
+ * The framework retains ownership of the request structure. It is only
+ * guaranteed to be valid during this call. The HAL device must make copies
+ * of the information it needs to retain for the capture processing. The HAL
+ * is responsible for waiting on and closing the buffers' fences and
+ * returning the buffer handles to the framework.
+ *
+ * The HAL must write the file descriptor for the input buffer's release
+ * sync fence into input_buffer->release_fence, if input_buffer is not
+ * NULL. If the HAL returns -1 for the input buffer release sync fence, the
+ * framework is free to immediately reuse the input buffer. Otherwise, the
+ * framework will wait on the sync fence before refilling and reusing the
+ * input buffer.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ *
+ * The input/output buffers provided by the framework in each request
+ * may be brand new (having never before seen by the HAL).
+ *
+ * ------------------------------------------------------------------------
+ * Performance considerations:
+ *
+ * Handling a new buffer should be extremely lightweight and there should be
+ * no frame rate degradation or frame jitter introduced.
+ *
+ * This call must return fast enough to ensure that the requested frame
+ * rate can be sustained, especially for streaming cases (post-processing
+ * quality settings set to FAST). The HAL should return this call in 1
+ * frame interval, and must return from this call in 4 frame intervals.
+ *
+ * Return values:
+ *
+ * 0: On a successful start to processing the capture request
+ *
+ * -EINVAL: If the input is malformed (the settings are NULL when not
+ * allowed, there are 0 output buffers, etc) and capture processing
+ * cannot start. Failures during request processing should be
+ * handled by calling camera3_callback_ops_t.notify(). In case of
+ * this error, the framework will retain responsibility for the
+ * stream buffers' fences and the buffer handles; the HAL should
+ * not close the fences or return these buffers with
+ * process_capture_result.
+ *
+ * -ENODEV: If the camera device has encountered a serious error. After this
+ * error is returned, only the close() method can be successfully
+ * called by the framework.
+ *
+ */
+ int (*process_capture_request)(const struct camera3_device *,
+ camera3_capture_request_t *request);
+
+ /**********************************************************************
+ * Miscellaneous methods
+ */
+
+ /**
+ * get_metadata_vendor_tag_ops:
+ *
+ * Get methods to query for vendor extension metadata tag information. The
+ * HAL should fill in all the vendor tag operation methods, or leave ops
+ * unchanged if no vendor tags are defined.
+ *
+ * The definition of vendor_tag_query_ops_t can be found in
+ * system/media/camera/include/system/camera_metadata.h.
+ *
+ * >= CAMERA_DEVICE_API_VERSION_3_2:
+ * DEPRECATED. This function has been deprecated and should be set to
+ * NULL by the HAL. Please implement get_vendor_tag_ops in camera_common.h
+ * instead.
+ */
+ void (*get_metadata_vendor_tag_ops)(const struct camera3_device*,
+ vendor_tag_query_ops_t* ops);
+
+ /**
+ * dump:
+ *
+ * Print out debugging state for the camera device. This will be called by
+ * the framework when the camera service is asked for a debug dump, which
+ * happens when using the dumpsys tool, or when capturing a bugreport.
+ *
+ * The passed-in file descriptor can be used to write debugging text using
+ * dprintf() or write(). The text should be in ASCII encoding only.
+ *
+ * Performance requirements:
+ *
+ * This must be a non-blocking call. The HAL should return from this call
+ * in 1ms, must return from this call in 10ms. This call must avoid
+ * deadlocks, as it may be called at any point during camera operation.
+ * Any synchronization primitives used (such as mutex locks or semaphores)
+ * should be acquired with a timeout.
+ */
+ void (*dump)(const struct camera3_device *, int fd);
+
+ /**
+ * flush:
+ *
+ * Flush all currently in-process captures and all buffers in the pipeline
+ * on the given device. The framework will use this to dump all state as
+ * quickly as possible in order to prepare for a configure_streams() call.
+ *
+ * No buffers are required to be successfully returned, so every buffer
+ * held at the time of flush() (whether successfully filled or not) may be
+ * returned with CAMERA3_BUFFER_STATUS_ERROR. Note the HAL is still allowed
+ * to return valid (CAMERA3_BUFFER_STATUS_OK) buffers during this call,
+ * provided they are successfully filled.
+ *
+ * All requests currently in the HAL are expected to be returned as soon as
+ * possible. Not-in-process requests should return errors immediately. Any
+ * interruptible hardware blocks should be stopped, and any uninterruptible
+ * blocks should be waited on.
+ *
+ * flush() may be called concurrently to process_capture_request(), with the expectation that
+ * process_capture_request will return quickly and the request submitted in that
+ * process_capture_request call is treated like all other in-flight requests. Due to
+ * concurrency issues, it is possible that from the HAL's point of view, a
+ * process_capture_request() call may be started after flush has been invoked but has not
+ * returned yet. If such a call happens before flush() returns, the HAL should treat the new
+ * capture request like other in-flight pending requests (see #4 below).
+ *
+ * More specifically, the HAL must follow below requirements for various cases:
+ *
+ * 1. For captures that are too late for the HAL to cancel/stop, and will be
+ * completed normally by the HAL; i.e. the HAL can send shutter/notify and
+ * process_capture_result and buffers as normal.
+ *
+ * 2. For pending requests that have not done any processing, the HAL must call notify
+ * CAMERA3_MSG_ERROR_REQUEST, and return all the output buffers with
+ * process_capture_result in the error state (CAMERA3_BUFFER_STATUS_ERROR).
+ * The HAL must not place the release fence into an error state, instead,
+ * the release fences must be set to the acquire fences passed by the framework,
+ * or -1 if they have been waited on by the HAL already. This is also the path
+ * to follow for any captures for which the HAL already called notify() with
+ * CAMERA3_MSG_SHUTTER but won't be producing any metadata/valid buffers for.
+ * After CAMERA3_MSG_ERROR_REQUEST, for a given frame, only process_capture_results with
+ * buffers in CAMERA3_BUFFER_STATUS_ERROR are allowed. No further notifys or
+ * process_capture_result with non-null metadata is allowed.
+ *
+ * 3. For partially completed pending requests that will not have all the output
+ * buffers or perhaps missing metadata, the HAL should follow below:
+ *
+ * 3.1. Call notify with CAMERA3_MSG_ERROR_RESULT if some of the expected result
+ * metadata (i.e. one or more partial metadata) won't be available for the capture.
+ *
+ * 3.2. Call notify with CAMERA3_MSG_ERROR_BUFFER for every buffer that won't
+ * be produced for the capture.
+ *
+ * 3.3 Call notify with CAMERA3_MSG_SHUTTER with the capture timestamp before
+ * any buffers/metadata are returned with process_capture_result.
+ *
+ * 3.4 For captures that will produce some results, the HAL must not call
+ * CAMERA3_MSG_ERROR_REQUEST, since that indicates complete failure.
+ *
+ * 3.5. Valid buffers/metadata should be passed to the framework as normal.
+ *
+ * 3.6. Failed buffers should be returned to the framework as described for case 2.
+ * But failed buffers do not have to follow the strict ordering valid buffers do,
+ * and may be out-of-order with respect to valid buffers. For example, if buffers
+ * A, B, C, D, E are sent, D and E are failed, then A, E, B, D, C is an acceptable
+ * return order.
+ *
+ * 3.7. For fully-missing metadata, calling CAMERA3_MSG_ERROR_RESULT is sufficient, no
+ * need to call process_capture_result with NULL metadata or equivalent.
+ *
+ * 4. If a flush() is invoked while a process_capture_request() invocation is active, that
+ * process call should return as soon as possible. In addition, if a process_capture_request()
+ * call is made after flush() has been invoked but before flush() has returned, the
+ * capture request provided by the late process_capture_request call should be treated like
+ * a pending request in case #2 above.
+ *
+ * flush() should only return when there are no more outstanding buffers or
+ * requests left in the HAL. The framework may call configure_streams (as
+ * the HAL state is now quiesced) or may issue new requests.
+ *
+ * Note that it's sufficient to only support fully-succeeded and fully-failed result cases.
+ * However, it is highly desirable to support the partial failure cases as well, as it
+ * could help improve the flush call overall performance.
+ *
+ * Performance requirements:
+ *
+ * The HAL should return from this call in 100ms, and must return from this
+ * call in 1000ms. And this call must not be blocked longer than pipeline
+ * latency (see S7 for definition).
+ *
+ * Version information:
+ *
+ * only available if device version >= CAMERA_DEVICE_API_VERSION_3_1.
+ *
+ * Return values:
+ *
+ * 0: On a successful flush of the camera HAL.
+ *
+ * -EINVAL: If the input is malformed (the device is not valid).
+ *
+ * -ENODEV: If the camera device has encountered a serious error. After this
+ * error is returned, only the close() method can be successfully
+ * called by the framework.
+ */
+ int (*flush)(const struct camera3_device *);
+
+ /* reserved for future use */
+ void *reserved[8];
+} camera3_device_ops_t;
+
+/**********************************************************************
+ *
+ * Camera device definition
+ *
+ */
+typedef struct camera3_device {
+ /**
+ * common.version must equal CAMERA_DEVICE_API_VERSION_3_0 to identify this
+ * device as implementing version 3.0 of the camera device HAL.
+ *
+ * Performance requirements:
+ *
+ * Camera open (common.module->common.methods->open) should return in 200ms, and must return
+ * in 500ms.
+ * Camera close (common.close) should return in 200ms, and must return in 500ms.
+ *
+ */
+ hw_device_t common;
+ camera3_device_ops_t *ops;
+ void *priv;
+} camera3_device_t;
+
+__END_DECLS
+
+#endif /* #ifdef ANDROID_INCLUDE_CAMERA3_H */
diff --git a/libhardware/include/hardware/camera_common.h b/libhardware/include/hardware/camera_common.h
new file mode 100644
index 0000000..7658dd4
--- /dev/null
+++ b/libhardware/include/hardware/camera_common.h
@@ -0,0 +1,916 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// FIXME: add well-defined names for cameras
+
+#ifndef ANDROID_INCLUDE_CAMERA_COMMON_H
+#define ANDROID_INCLUDE_CAMERA_COMMON_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <cutils/native_handle.h>
+#include <system/camera.h>
+#include <system/camera_vendor_tags.h>
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define CAMERA_HARDWARE_MODULE_ID "camera"
+
+/**
+ * Module versioning information for the Camera hardware module, based on
+ * camera_module_t.common.module_api_version. The two most significant hex
+ * digits represent the major version, and the two least significant represent
+ * the minor version.
+ *
+ *******************************************************************************
+ * Versions: 0.X - 1.X [CAMERA_MODULE_API_VERSION_1_0]
+ *
+ * Camera modules that report these version numbers implement the initial
+ * camera module HAL interface. All camera devices openable through this
+ * module support only version 1 of the camera device HAL. The device_version
+ * and static_camera_characteristics fields of camera_info are not valid. Only
+ * the android.hardware.Camera API can be supported by this module and its
+ * devices.
+ *
+ *******************************************************************************
+ * Version: 2.0 [CAMERA_MODULE_API_VERSION_2_0]
+ *
+ * Camera modules that report this version number implement the second version
+ * of the camera module HAL interface. Camera devices openable through this
+ * module may support either version 1.0 or version 2.0 of the camera device
+ * HAL interface. The device_version field of camera_info is always valid; the
+ * static_camera_characteristics field of camera_info is valid if the
+ * device_version field is 2.0 or higher.
+ *
+ *******************************************************************************
+ * Version: 2.1 [CAMERA_MODULE_API_VERSION_2_1]
+ *
+ * This camera module version adds support for asynchronous callbacks to the
+ * framework from the camera HAL module, which is used to notify the framework
+ * about changes to the camera module state. Modules that provide a valid
+ * set_callbacks() method must report at least this version number.
+ *
+ *******************************************************************************
+ * Version: 2.2 [CAMERA_MODULE_API_VERSION_2_2]
+ *
+ * This camera module version adds vendor tag support from the module, and
+ * deprecates the old vendor_tag_query_ops that were previously only
+ * accessible with a device open.
+ *
+ *******************************************************************************
+ * Version: 2.3 [CAMERA_MODULE_API_VERSION_2_3]
+ *
+ * This camera module version adds open legacy camera HAL device support.
+ * Framework can use it to open the camera device as lower device HAL version
+ * HAL device if the same device can support multiple device API versions.
+ * The standard hardware module open call (common.methods->open) continues
+ * to open the camera device with the latest supported version, which is
+ * also the version listed in camera_info_t.device_version.
+ *
+ *******************************************************************************
+ * Version: 2.4 [CAMERA_MODULE_API_VERSION_2_4]
+ *
+ * This camera module version adds below API changes:
+ *
+ * 1. Torch mode support. The framework can use it to turn on torch mode for
+ * any camera device that has a flash unit, without opening a camera device. The
+ * camera device has a higher priority accessing the flash unit than the camera
+ * module; opening a camera device will turn off the torch if it had been enabled
+ * through the module interface. When there are any resource conflicts, such as
+ * open() is called to open a camera device, the camera HAL module must notify the
+ * framework through the torch mode status callback that the torch mode has been
+ * turned off.
+ *
+ * 2. External camera (e.g. USB hot-plug camera) support. The API updates specify that
+ * the camera static info is only available when camera is connected and ready to
+ * use for external hot-plug cameras. Calls to get static info will be invalid
+ * calls when camera status is not CAMERA_DEVICE_STATUS_PRESENT. The frameworks
+ * will only count on device status change callbacks to manage the available external
+ * camera list.
+ *
+ * 3. Camera arbitration hints. This module version adds support for explicitly
+ * indicating the number of camera devices that can be simultaneously opened and used.
+ * To specify valid combinations of devices, the resource_cost and conflicting_devices
+ * fields should always be set in the camera_info structure returned by the
+ * get_camera_info call.
+ *
+ * 4. Module initialization method. This will be called by the camera service
+ * right after the HAL module is loaded, to allow for one-time initialization
+ * of the HAL. It is called before any other module methods are invoked.
+ */
+
+/**
+ * Predefined macros for currently-defined version numbers
+ */
+
+/**
+ * All module versions <= HARDWARE_MODULE_API_VERSION(1, 0xFF) must be treated
+ * as CAMERA_MODULE_API_VERSION_1_0
+ */
+#define CAMERA_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define CAMERA_MODULE_API_VERSION_2_0 HARDWARE_MODULE_API_VERSION(2, 0)
+#define CAMERA_MODULE_API_VERSION_2_1 HARDWARE_MODULE_API_VERSION(2, 1)
+#define CAMERA_MODULE_API_VERSION_2_2 HARDWARE_MODULE_API_VERSION(2, 2)
+#define CAMERA_MODULE_API_VERSION_2_3 HARDWARE_MODULE_API_VERSION(2, 3)
+#define CAMERA_MODULE_API_VERSION_2_4 HARDWARE_MODULE_API_VERSION(2, 4)
+
+#define CAMERA_MODULE_API_VERSION_CURRENT CAMERA_MODULE_API_VERSION_2_4
+
+/**
+ * All device versions <= HARDWARE_DEVICE_API_VERSION(1, 0xFF) must be treated
+ * as CAMERA_DEVICE_API_VERSION_1_0
+ */
+#define CAMERA_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION(1, 0)
+#define CAMERA_DEVICE_API_VERSION_2_0 HARDWARE_DEVICE_API_VERSION(2, 0)
+#define CAMERA_DEVICE_API_VERSION_2_1 HARDWARE_DEVICE_API_VERSION(2, 1)
+#define CAMERA_DEVICE_API_VERSION_3_0 HARDWARE_DEVICE_API_VERSION(3, 0)
+#define CAMERA_DEVICE_API_VERSION_3_1 HARDWARE_DEVICE_API_VERSION(3, 1)
+#define CAMERA_DEVICE_API_VERSION_3_2 HARDWARE_DEVICE_API_VERSION(3, 2)
+#define CAMERA_DEVICE_API_VERSION_3_3 HARDWARE_DEVICE_API_VERSION(3, 3)
+
+// Device version 3.3 is current, older HAL camera device versions are not
+// recommended for new devices.
+#define CAMERA_DEVICE_API_VERSION_CURRENT CAMERA_DEVICE_API_VERSION_3_3
+
+/**
+ * Defined in /system/media/camera/include/system/camera_metadata.h
+ */
+typedef struct camera_metadata camera_metadata_t;
+
+typedef struct camera_info {
+ /**
+ * The direction that the camera faces to. See system/core/include/system/camera.h
+ * for camera facing definitions.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * It should be CAMERA_FACING_BACK or CAMERA_FACING_FRONT.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4 or higher:
+ *
+ * It should be CAMERA_FACING_BACK, CAMERA_FACING_FRONT or
+ * CAMERA_FACING_EXTERNAL.
+ */
+ int facing;
+
+ /**
+ * The orientation of the camera image. The value is the angle that the
+ * camera image needs to be rotated clockwise so it shows correctly on the
+ * display in its natural orientation. It should be 0, 90, 180, or 270.
+ *
+ * For example, suppose a device has a naturally tall screen. The
+ * back-facing camera sensor is mounted in landscape. You are looking at the
+ * screen. If the top side of the camera sensor is aligned with the right
+ * edge of the screen in natural orientation, the value should be 90. If the
+ * top side of a front-facing camera sensor is aligned with the right of the
+ * screen, the value should be 270.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * Valid in all camera_module versions.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4 or higher:
+ *
+ * Valid if camera facing is CAMERA_FACING_BACK or CAMERA_FACING_FRONT,
+ * not valid if camera facing is CAMERA_FACING_EXTERNAL.
+ */
+ int orientation;
+
+ /**
+ * The value of camera_device_t.common.version.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_1_0:
+ *
+ * Not valid. Can be assumed to be CAMERA_DEVICE_API_VERSION_1_0. Do
+ * not read this field.
+ *
+ * CAMERA_MODULE_API_VERSION_2_0 or higher:
+ *
+ * Always valid
+ *
+ */
+ uint32_t device_version;
+
+ /**
+ * The camera's fixed characteristics, which include all static camera metadata
+ * specified in system/media/camera/docs/docs.html. This should be a sorted metadata
+ * buffer, and may not be modified or freed by the caller. The pointer should remain
+ * valid for the lifetime of the camera module, and values in it may not
+ * change after it is returned by get_camera_info().
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_1_0:
+ *
+ * Not valid. Extra characteristics are not available. Do not read this
+ * field.
+ *
+ * CAMERA_MODULE_API_VERSION_2_0 or higher:
+ *
+ * Valid if device_version >= CAMERA_DEVICE_API_VERSION_2_0. Do not read
+ * otherwise.
+ *
+ */
+ const camera_metadata_t *static_camera_characteristics;
+
+ /**
+ * The total resource "cost" of using this camera, represented as an integer
+ * value in the range [0, 100] where 100 represents total usage of the shared
+ * resource that is the limiting bottleneck of the camera subsystem. This may
+ * be a very rough estimate, and is used as a hint to the camera service to
+ * determine when to disallow multiple applications from simultaneously
+ * opening different cameras advertised by the camera service.
+ *
+ * The camera service must be able to simultaneously open and use any
+ * combination of camera devices exposed by the HAL where the sum of
+ * the resource costs of these cameras is <= 100. For determining cost,
+ * each camera device must be assumed to be configured and operating at
+ * the maximally resource-consuming framerate and stream size settings
+ * available in the configuration settings exposed for that device through
+ * the camera metadata.
+ *
+ * The camera service may still attempt to simultaneously open combinations
+ * of camera devices with a total resource cost > 100. This may succeed or
+ * fail. If this succeeds, combinations of configurations that are not
+ * supported due to resource constraints from having multiple open devices
+ * should fail during the configure calls. If the total resource cost is
+ * <= 100, open and configure should never fail for any stream configuration
+ * settings or other device capabilities that would normally succeed for a
+ * device when it is the only open camera device.
+ *
+ * This field will be used to determine whether background applications are
+ * allowed to use this camera device while other applications are using other
+ * camera devices. Note: multiple applications will never be allowed by the
+ * camera service to simultaneously open the same camera device.
+ *
+ * Example use cases:
+ *
+ * Ex. 1: Camera Device 0 = Back Camera
+ * Camera Device 1 = Front Camera
+ * - Using both camera devices causes a large framerate slowdown due to
+ * limited ISP bandwidth.
+ *
+ * Configuration:
+ *
+ * Camera Device 0 - resource_cost = 51
+ * conflicting_devices = null
+ * Camera Device 1 - resource_cost = 51
+ * conflicting_devices = null
+ *
+ * Result:
+ *
+ * Since the sum of the resource costs is > 100, if a higher-priority
+ * application has either device open, no lower-priority applications will be
+ * allowed by the camera service to open either device. If a lower-priority
+ * application is using a device that a higher-priority subsequently attempts
+ * to open, the lower-priority application will be forced to disconnect the
+ * the device.
+ *
+ * If the highest-priority application chooses, it may still attempt to open
+ * both devices (since these devices are not listed as conflicting in the
+ * conflicting_devices fields), but usage of these devices may fail in the
+ * open or configure calls.
+ *
+ * Ex. 2: Camera Device 0 = Left Back Camera
+ * Camera Device 1 = Right Back Camera
+ * Camera Device 2 = Combined stereo camera using both right and left
+ * back camera sensors used by devices 0, and 1
+ * Camera Device 3 = Front Camera
+ * - Due to do hardware constraints, up to two cameras may be open at once. The
+ * combined stereo camera may never be used at the same time as either of the
+ * two back camera devices (device 0, 1), and typically requires too much
+ * bandwidth to use at the same time as the front camera (device 3).
+ *
+ * Configuration:
+ *
+ * Camera Device 0 - resource_cost = 50
+ * conflicting_devices = { 2 }
+ * Camera Device 1 - resource_cost = 50
+ * conflicting_devices = { 2 }
+ * Camera Device 2 - resource_cost = 100
+ * conflicting_devices = { 0, 1 }
+ * Camera Device 3 - resource_cost = 50
+ * conflicting_devices = null
+ *
+ * Result:
+ *
+ * Based on the conflicting_devices fields, the camera service guarantees that
+ * the following sets of open devices will never be allowed: { 1, 2 }, { 0, 2 }.
+ *
+ * Based on the resource_cost fields, if a high-priority foreground application
+ * is using camera device 0, a background application would be allowed to open
+ * camera device 1 or 3 (but would be forced to disconnect it again if the
+ * foreground application opened another device).
+ *
+ * The highest priority application may still attempt to simultaneously open
+ * devices 0, 2, and 3, but the HAL may fail in open or configure calls for
+ * this combination.
+ *
+ * Ex. 3: Camera Device 0 = Back Camera
+ * Camera Device 1 = Front Camera
+ * Camera Device 2 = Low-power Front Camera that uses the same
+ * sensor as device 1, but only exposes image stream
+ * resolutions that can be used in low-power mode
+ * - Using both front cameras (device 1, 2) at the same time is impossible due
+ * a shared physical sensor. Using the back and "high-power" front camera
+ * (device 1) may be impossible for some stream configurations due to hardware
+ * limitations, but the "low-power" front camera option may always be used as
+ * it has special dedicated hardware.
+ *
+ * Configuration:
+ *
+ * Camera Device 0 - resource_cost = 100
+ * conflicting_devices = null
+ * Camera Device 1 - resource_cost = 100
+ * conflicting_devices = { 2 }
+ * Camera Device 2 - resource_cost = 0
+ * conflicting_devices = { 1 }
+ * Result:
+ *
+ * Based on the conflicting_devices fields, the camera service guarantees that
+ * the following sets of open devices will never be allowed: { 1, 2 }.
+ *
+ * Based on the resource_cost fields, only the highest priority application
+ * may attempt to open both device 0 and 1 at the same time. If a higher-priority
+ * application is not using device 1 or 2, a low-priority background application
+ * may open device 2 (but will be forced to disconnect it if a higher-priority
+ * application subsequently opens device 1 or 2).
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * Not valid. Can be assumed to be 100. Do not read this field.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4 or higher:
+ *
+ * Always valid.
+ */
+ int resource_cost;
+
+ /**
+ * An array of camera device IDs represented as NULL-terminated strings
+ * indicating other devices that cannot be simultaneously opened while this
+ * camera device is in use.
+ *
+ * This field is intended to be used to indicate that this camera device
+ * is a composite of several other camera devices, or otherwise has
+ * hardware dependencies that prohibit simultaneous usage. If there are no
+ * dependencies, a NULL may be returned in this field to indicate this.
+ *
+ * The camera service will never simultaneously open any of the devices
+ * in this list while this camera device is open.
+ *
+ * The strings pointed to in this field will not be cleaned up by the camera
+ * service, and must remain while this device is plugged in.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * Not valid. Can be assumed to be NULL. Do not read this field.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4 or higher:
+ *
+ * Always valid.
+ */
+ char** conflicting_devices;
+
+ /**
+ * The length of the array given in the conflicting_devices field.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * Not valid. Can be assumed to be 0. Do not read this field.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4 or higher:
+ *
+ * Always valid.
+ */
+ size_t conflicting_devices_length;
+
+} camera_info_t;
+
+/**
+ * camera_device_status_t:
+ *
+ * The current status of the camera device, as provided by the HAL through the
+ * camera_module_callbacks.camera_device_status_change() call.
+ *
+ * At module load time, the framework will assume all camera devices are in the
+ * CAMERA_DEVICE_STATUS_PRESENT state. The HAL should invoke
+ * camera_module_callbacks::camera_device_status_change to inform the framework
+ * of any initially NOT_PRESENT devices.
+ *
+ * Allowed transitions:
+ * PRESENT -> NOT_PRESENT
+ * NOT_PRESENT -> ENUMERATING
+ * NOT_PRESENT -> PRESENT
+ * ENUMERATING -> PRESENT
+ * ENUMERATING -> NOT_PRESENT
+ */
+typedef enum camera_device_status {
+ /**
+ * The camera device is not currently connected, and opening it will return
+ * failure.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * Calls to get_camera_info must still succeed, and provide the same information
+ * it would if the camera were connected.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4:
+ *
+ * The camera device at this status must return -EINVAL for get_camera_info call,
+ * as the device is not connected.
+ */
+ CAMERA_DEVICE_STATUS_NOT_PRESENT = 0,
+
+ /**
+ * The camera device is connected, and opening it will succeed.
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * The information returned by get_camera_info cannot change due to this status
+ * change. By default, the framework will assume all devices are in this state.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4:
+ *
+ * The information returned by get_camera_info will become valid after a device's
+ * status changes to this. By default, the framework will assume all devices are in
+ * this state.
+ */
+ CAMERA_DEVICE_STATUS_PRESENT = 1,
+
+ /**
+ * The camera device is connected, but it is undergoing an enumeration and
+ * so opening the device will return -EBUSY.
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * Calls to get_camera_info must still succeed, as if the camera was in the
+ * PRESENT status.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4:
+ *
+ * The camera device at this status must return -EINVAL for get_camera_info for call,
+ * as the device is not ready.
+ */
+ CAMERA_DEVICE_STATUS_ENUMERATING = 2,
+
+} camera_device_status_t;
+
+/**
+ * torch_mode_status_t:
+ *
+ * The current status of the torch mode, as provided by the HAL through the
+ * camera_module_callbacks.torch_mode_status_change() call.
+ *
+ * The torch mode status of a camera device is applicable only when the camera
+ * device is present. The framework will not call set_torch_mode() to turn on
+ * torch mode of a camera device if the camera device is not present. At module
+ * load time, the framework will assume torch modes are in the
+ * TORCH_MODE_STATUS_AVAILABLE_OFF state if the camera device is present and
+ * android.flash.info.available is reported as true via get_camera_info() call.
+ *
+ * The behaviors of the camera HAL module that the framework expects in the
+ * following situations when a camera device's status changes:
+ * 1. A previously-disconnected camera device becomes connected.
+ * After camera_module_callbacks::camera_device_status_change() is invoked
+ * to inform the framework that the camera device is present, the framework
+ * will assume the camera device's torch mode is in
+ * TORCH_MODE_STATUS_AVAILABLE_OFF state. The camera HAL module does not need
+ * to invoke camera_module_callbacks::torch_mode_status_change() unless the
+ * flash unit is unavailable to use by set_torch_mode().
+ *
+ * 2. A previously-connected camera becomes disconnected.
+ * After camera_module_callbacks::camera_device_status_change() is invoked
+ * to inform the framework that the camera device is not present, the
+ * framework will not call set_torch_mode() for the disconnected camera
+ * device until its flash unit becomes available again. The camera HAL
+ * module does not need to invoke
+ * camera_module_callbacks::torch_mode_status_change() separately to inform
+ * that the flash unit has become unavailable.
+ *
+ * 3. open() is called to open a camera device.
+ * The camera HAL module must invoke
+ * camera_module_callbacks::torch_mode_status_change() for all flash units
+ * that have entered TORCH_MODE_STATUS_NOT_AVAILABLE state and can not be
+ * turned on by calling set_torch_mode() anymore due to this open() call.
+ * open() must not trigger TORCH_MODE_STATUS_AVAILABLE_OFF before
+ * TORCH_MODE_STATUS_NOT_AVAILABLE for all flash units that have become
+ * unavailable.
+ *
+ * 4. close() is called to close a camera device.
+ * The camera HAL module must invoke
+ * camera_module_callbacks::torch_mode_status_change() for all flash units
+ * that have entered TORCH_MODE_STATUS_AVAILABLE_OFF state and can be turned
+ * on by calling set_torch_mode() again because of enough resources freed
+ * up by this close() call.
+ *
+ * Note that the framework calling set_torch_mode() successfully must trigger
+ * TORCH_MODE_STATUS_AVAILABLE_OFF or TORCH_MODE_STATUS_AVAILABLE_ON callback
+ * for the given camera device. Additionally it must trigger
+ * TORCH_MODE_STATUS_AVAILABLE_OFF callbacks for other previously-on torch
+ * modes if HAL cannot keep multiple torch modes on simultaneously.
+ */
+typedef enum torch_mode_status {
+
+ /**
+ * The flash unit is no longer available and the torch mode can not be
+ * turned on by calling set_torch_mode(). If the torch mode is on, it
+ * will be turned off by HAL before HAL calls torch_mode_status_change().
+ */
+ TORCH_MODE_STATUS_NOT_AVAILABLE = 0,
+
+ /**
+ * A torch mode has become off and available to be turned on via
+ * set_torch_mode(). This may happen in the following
+ * cases:
+ * 1. After the resources to turn on the torch mode have become available.
+ * 2. After set_torch_mode() is called to turn off the torch mode.
+ * 3. After the framework turned on the torch mode of some other camera
+ * device and HAL had to turn off the torch modes of any camera devices
+ * that were previously on.
+ */
+ TORCH_MODE_STATUS_AVAILABLE_OFF = 1,
+
+ /**
+ * A torch mode has become on and available to be turned off via
+ * set_torch_mode(). This can happen only after set_torch_mode() is called
+ * to turn on the torch mode.
+ */
+ TORCH_MODE_STATUS_AVAILABLE_ON = 2,
+
+} torch_mode_status_t;
+
+/**
+ * Callback functions for the camera HAL module to use to inform the framework
+ * of changes to the camera subsystem.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * Each callback is called only by HAL modules implementing the indicated
+ * version or higher of the HAL module API interface.
+ *
+ * CAMERA_MODULE_API_VERSION_2_1:
+ * camera_device_status_change()
+ *
+ * CAMERA_MODULE_API_VERSION_2_4:
+ * torch_mode_status_change()
+
+ */
+typedef struct camera_module_callbacks {
+
+ /**
+ * camera_device_status_change:
+ *
+ * Callback to the framework to indicate that the state of a specific camera
+ * device has changed. At module load time, the framework will assume all
+ * camera devices are in the CAMERA_DEVICE_STATUS_PRESENT state. The HAL
+ * must call this method to inform the framework of any initially
+ * NOT_PRESENT devices.
+ *
+ * This callback is added for CAMERA_MODULE_API_VERSION_2_1.
+ *
+ * camera_module_callbacks: The instance of camera_module_callbacks_t passed
+ * to the module with set_callbacks.
+ *
+ * camera_id: The ID of the camera device that has a new status.
+ *
+ * new_status: The new status code, one of the camera_device_status_t enums,
+ * or a platform-specific status.
+ *
+ */
+ void (*camera_device_status_change)(const struct camera_module_callbacks*,
+ int camera_id,
+ int new_status);
+
+ /**
+ * torch_mode_status_change:
+ *
+ * Callback to the framework to indicate that the state of the torch mode
+ * of the flash unit associated with a specific camera device has changed.
+ * At module load time, the framework will assume the torch modes are in
+ * the TORCH_MODE_STATUS_AVAILABLE_OFF state if android.flash.info.available
+ * is reported as true via get_camera_info() call.
+ *
+ * This callback is added for CAMERA_MODULE_API_VERSION_2_4.
+ *
+ * camera_module_callbacks: The instance of camera_module_callbacks_t
+ * passed to the module with set_callbacks.
+ *
+ * camera_id: The ID of camera device whose flash unit has a new torch mode
+ * status.
+ *
+ * new_status: The new status code, one of the torch_mode_status_t enums.
+ */
+ void (*torch_mode_status_change)(const struct camera_module_callbacks*,
+ const char* camera_id,
+ int new_status);
+
+
+} camera_module_callbacks_t;
+
+typedef struct camera_module {
+ /**
+ * Common methods of the camera module. This *must* be the first member of
+ * camera_module as users of this structure will cast a hw_module_t to
+ * camera_module pointer in contexts where it's known the hw_module_t
+ * references a camera_module.
+ *
+ * The return values for common.methods->open for camera_module are:
+ *
+ * 0: On a successful open of the camera device.
+ *
+ * -ENODEV: The camera device cannot be opened due to an internal
+ * error.
+ *
+ * -EINVAL: The input arguments are invalid, i.e. the id is invalid,
+ * and/or the module is invalid.
+ *
+ * -EBUSY: The camera device was already opened for this camera id
+ * (by using this method or open_legacy),
+ * regardless of the device HAL version it was opened as.
+ *
+ * -EUSERS: The maximal number of camera devices that can be
+ * opened concurrently were opened already, either by
+ * this method or the open_legacy method.
+ *
+ * All other return values from common.methods->open will be treated as
+ * -ENODEV.
+ */
+ hw_module_t common;
+
+ /**
+ * get_number_of_cameras:
+ *
+ * Returns the number of camera devices accessible through the camera
+ * module. The camera devices are numbered 0 through N-1, where N is the
+ * value returned by this call. The name of the camera device for open() is
+ * simply the number converted to a string. That is, "0" for camera ID 0,
+ * "1" for camera ID 1.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_3 or lower:
+ *
+ * The value here must be static, and cannot change after the first call
+ * to this method.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4 or higher:
+ *
+ * The value here must be static, and must count only built-in cameras,
+ * which have CAMERA_FACING_BACK or CAMERA_FACING_FRONT camera facing values
+ * (camera_info.facing). The HAL must not include the external cameras
+ * (camera_info.facing == CAMERA_FACING_EXTERNAL) into the return value
+ * of this call. Frameworks will use camera_device_status_change callback
+ * to manage number of external cameras.
+ */
+ int (*get_number_of_cameras)(void);
+
+ /**
+ * get_camera_info:
+ *
+ * Return the static camera information for a given camera device. This
+ * information may not change for a camera device.
+ *
+ * Return values:
+ *
+ * 0: On a successful operation
+ *
+ * -ENODEV: The information cannot be provided due to an internal
+ * error.
+ *
+ * -EINVAL: The input arguments are invalid, i.e. the id is invalid,
+ * and/or the module is invalid.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_2_4 or higher:
+ *
+ * When a camera is disconnected, its camera id becomes invalid. Calling this
+ * this method with this invalid camera id will get -EINVAL and NULL camera
+ * static metadata (camera_info.static_camera_characteristics).
+ */
+ int (*get_camera_info)(int camera_id, struct camera_info *info);
+
+ /**
+ * set_callbacks:
+ *
+ * Provide callback function pointers to the HAL module to inform framework
+ * of asynchronous camera module events. The framework will call this
+ * function once after initial camera HAL module load, after the
+ * get_number_of_cameras() method is called for the first time, and before
+ * any other calls to the module.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_1_0, CAMERA_MODULE_API_VERSION_2_0:
+ *
+ * Not provided by HAL module. Framework may not call this function.
+ *
+ * CAMERA_MODULE_API_VERSION_2_1:
+ *
+ * Valid to be called by the framework.
+ *
+ * Return values:
+ *
+ * 0: On a successful operation
+ *
+ * -ENODEV: The operation cannot be completed due to an internal
+ * error.
+ *
+ * -EINVAL: The input arguments are invalid, i.e. the callbacks are
+ * null
+ */
+ int (*set_callbacks)(const camera_module_callbacks_t *callbacks);
+
+ /**
+ * get_vendor_tag_ops:
+ *
+ * Get methods to query for vendor extension metadata tag information. The
+ * HAL should fill in all the vendor tag operation methods, or leave ops
+ * unchanged if no vendor tags are defined.
+ *
+ * The vendor_tag_ops structure used here is defined in:
+ * system/media/camera/include/system/vendor_tags.h
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_1_x/2_0/2_1:
+ * Not provided by HAL module. Framework may not call this function.
+ *
+ * CAMERA_MODULE_API_VERSION_2_2:
+ * Valid to be called by the framework.
+ */
+ void (*get_vendor_tag_ops)(vendor_tag_ops_t* ops);
+
+ /**
+ * open_legacy:
+ *
+ * Open a specific legacy camera HAL device if multiple device HAL API
+ * versions are supported by this camera HAL module. For example, if the
+ * camera module supports both CAMERA_DEVICE_API_VERSION_1_0 and
+ * CAMERA_DEVICE_API_VERSION_3_2 device API for the same camera id,
+ * framework can call this function to open the camera device as
+ * CAMERA_DEVICE_API_VERSION_1_0 device.
+ *
+ * This is an optional method. A Camera HAL module does not need to support
+ * more than one device HAL version per device, and such modules may return
+ * -ENOSYS for all calls to this method. For all older HAL device API
+ * versions that are not supported, it may return -EOPNOTSUPP. When above
+ * cases occur, The normal open() method (common.methods->open) will be
+ * used by the framework instead.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_1_x/2_0/2_1/2_2:
+ * Not provided by HAL module. Framework will not call this function.
+ *
+ * CAMERA_MODULE_API_VERSION_2_3:
+ * Valid to be called by the framework.
+ *
+ * Return values:
+ *
+ * 0: On a successful open of the camera device.
+ *
+ * -ENOSYS This method is not supported.
+ *
+ * -EOPNOTSUPP: The requested HAL version is not supported by this method.
+ *
+ * -EINVAL: The input arguments are invalid, i.e. the id is invalid,
+ * and/or the module is invalid.
+ *
+ * -EBUSY: The camera device was already opened for this camera id
+ * (by using this method or common.methods->open method),
+ * regardless of the device HAL version it was opened as.
+ *
+ * -EUSERS: The maximal number of camera devices that can be
+ * opened concurrently were opened already, either by
+ * this method or common.methods->open method.
+ */
+ int (*open_legacy)(const struct hw_module_t* module, const char* id,
+ uint32_t halVersion, struct hw_device_t** device);
+
+ /**
+ * set_torch_mode:
+ *
+ * Turn on or off the torch mode of the flash unit associated with a given
+ * camera ID. If the operation is successful, HAL must notify the framework
+ * torch state by invoking
+ * camera_module_callbacks.torch_mode_status_change() with the new state.
+ *
+ * The camera device has a higher priority accessing the flash unit. When
+ * there are any resource conflicts, such as open() is called to open a
+ * camera device, HAL module must notify the framework through
+ * camera_module_callbacks.torch_mode_status_change() that the
+ * torch mode has been turned off and the torch mode state has become
+ * TORCH_MODE_STATUS_NOT_AVAILABLE. When resources to turn on torch mode
+ * become available again, HAL module must notify the framework through
+ * camera_module_callbacks.torch_mode_status_change() that the torch mode
+ * state has become TORCH_MODE_STATUS_AVAILABLE_OFF for set_torch_mode() to
+ * be called.
+ *
+ * When the framework calls set_torch_mode() to turn on the torch mode of a
+ * flash unit, if HAL cannot keep multiple torch modes on simultaneously,
+ * HAL should turn off the torch mode that was turned on by
+ * a previous set_torch_mode() call and notify the framework that the torch
+ * mode state of that flash unit has become TORCH_MODE_STATUS_AVAILABLE_OFF.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_1_x/2_0/2_1/2_2/2_3:
+ * Not provided by HAL module. Framework will not call this function.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4:
+ * Valid to be called by the framework.
+ *
+ * Return values:
+ *
+ * 0: On a successful operation.
+ *
+ * -ENOSYS: The camera device does not support this operation. It is
+ * returned if and only if android.flash.info.available is
+ * false.
+ *
+ * -EBUSY: The camera device is already in use.
+ *
+ * -EUSERS: The resources needed to turn on the torch mode are not
+ * available, typically because other camera devices are
+ * holding the resources to make using the flash unit not
+ * possible.
+ *
+ * -EINVAL: camera_id is invalid.
+ *
+ */
+ int (*set_torch_mode)(const char* camera_id, bool enabled);
+
+ /**
+ * init:
+ *
+ * This method is called by the camera service before any other methods
+ * are invoked, right after the camera HAL library has been successfully
+ * loaded. It may be left as NULL by the HAL module, if no initialization
+ * in needed.
+ *
+ * It can be used by HAL implementations to perform initialization and
+ * other one-time operations.
+ *
+ * Version information (based on camera_module_t.common.module_api_version):
+ *
+ * CAMERA_MODULE_API_VERSION_1_x/2_0/2_1/2_2/2_3:
+ * Not provided by HAL module. Framework will not call this function.
+ *
+ * CAMERA_MODULE_API_VERSION_2_4:
+ * If not NULL, will always be called by the framework once after the HAL
+ * module is loaded, before any other HAL module method is called.
+ *
+ * Return values:
+ *
+ * 0: On a successful operation.
+ *
+ * -ENODEV: Initialization cannot be completed due to an internal
+ * error. The HAL must be assumed to be in a nonfunctional
+ * state.
+ *
+ */
+ int (*init)();
+
+ /* reserved for future use */
+ void* reserved[5];
+} camera_module_t;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_CAMERA_COMMON_H */
diff --git a/libhardware/include/hardware/consumerir.h b/libhardware/include/hardware/consumerir.h
new file mode 100644
index 0000000..15334c1
--- /dev/null
+++ b/libhardware/include/hardware/consumerir.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_CONSUMERIR_H
+#define ANDROID_INCLUDE_HARDWARE_CONSUMERIR_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <hardware/hardware.h>
+#include <hardware/hwcomposer_defs.h>
+
+#define CONSUMERIR_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define CONSUMERIR_HARDWARE_MODULE_ID "consumerir"
+#define CONSUMERIR_TRANSMITTER "transmitter"
+
+typedef struct consumerir_freq_range {
+ int min;
+ int max;
+} consumerir_freq_range_t;
+
+typedef struct consumerir_module {
+ /**
+ * Common methods of the consumer IR module. This *must* be the first member of
+ * consumerir_module as users of this structure will cast a hw_module_t to
+ * consumerir_module pointer in contexts where it's known the hw_module_t references a
+ * consumerir_module.
+ */
+ struct hw_module_t common;
+} consumerir_module_t;
+
+typedef struct consumerir_device {
+ /**
+ * Common methods of the consumer IR device. This *must* be the first member of
+ * consumerir_device as users of this structure will cast a hw_device_t to
+ * consumerir_device pointer in contexts where it's known the hw_device_t references a
+ * consumerir_device.
+ */
+ struct hw_device_t common;
+
+ /*
+ * (*transmit)() is called to by the ConsumerIrService to send an IR pattern
+ * at a given carrier_freq.
+ *
+ * The pattern is alternating series of carrier on and off periods measured in
+ * microseconds. The carrier should be turned off at the end of a transmit
+ * even if there are and odd number of entries in the pattern array.
+ *
+ * This call should return when the transmit is complete or encounters an error.
+ *
+ * returns: 0 on success. A negative error code on error.
+ */
+ int (*transmit)(struct consumerir_device *dev, int carrier_freq,
+ const int pattern[], int pattern_len);
+
+ /*
+ * (*get_num_carrier_freqs)() is called by the ConsumerIrService to get the
+ * number of carrier freqs to allocate space for, which is then filled by
+ * a subsequent call to (*get_carrier_freqs)().
+ *
+ * returns: the number of ranges on success. A negative error code on error.
+ */
+ int (*get_num_carrier_freqs)(struct consumerir_device *dev);
+
+ /*
+ * (*get_carrier_freqs)() is called by the ConsumerIrService to enumerate
+ * which frequencies the IR transmitter supports. The HAL implementation
+ * should fill an array of consumerir_freq_range structs with the
+ * appropriate values for the transmitter, up to len elements.
+ *
+ * returns: the number of ranges on success. A negative error code on error.
+ */
+ int (*get_carrier_freqs)(struct consumerir_device *dev,
+ size_t len, consumerir_freq_range_t *ranges);
+
+ /* Reserved for future use. Must be NULL. */
+ void* reserved[8 - 3];
+} consumerir_device_t;
+
+#endif /* ANDROID_INCLUDE_HARDWARE_CONSUMERIR_H */
diff --git a/libhardware/include/hardware/fb.h b/libhardware/include/hardware/fb.h
new file mode 100644
index 0000000..9df9416
--- /dev/null
+++ b/libhardware/include/hardware/fb.h
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_FB_INTERFACE_H
+#define ANDROID_FB_INTERFACE_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <cutils/native_handle.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define GRALLOC_HARDWARE_FB0 "fb0"
+
+/*****************************************************************************/
+
+
+/*****************************************************************************/
+
+typedef struct framebuffer_device_t {
+ /**
+ * Common methods of the framebuffer device. This *must* be the first member of
+ * framebuffer_device_t as users of this structure will cast a hw_device_t to
+ * framebuffer_device_t pointer in contexts where it's known the hw_device_t references a
+ * framebuffer_device_t.
+ */
+ struct hw_device_t common;
+
+ /* flags describing some attributes of the framebuffer */
+ const uint32_t flags;
+
+ /* dimensions of the framebuffer in pixels */
+ const uint32_t width;
+ const uint32_t height;
+
+ /* frambuffer stride in pixels */
+ const int stride;
+
+ /* framebuffer pixel format */
+ const int format;
+
+ /* resolution of the framebuffer's display panel in pixel per inch*/
+ const float xdpi;
+ const float ydpi;
+
+ /* framebuffer's display panel refresh rate in frames per second */
+ const float fps;
+
+ /* min swap interval supported by this framebuffer */
+ const int minSwapInterval;
+
+ /* max swap interval supported by this framebuffer */
+ const int maxSwapInterval;
+
+ /* Number of framebuffers supported*/
+ const int numFramebuffers;
+
+ int reserved[7];
+
+ /*
+ * requests a specific swap-interval (same definition than EGL)
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*setSwapInterval)(struct framebuffer_device_t* window,
+ int interval);
+
+ /*
+ * This hook is OPTIONAL.
+ *
+ * It is non NULL If the framebuffer driver supports "update-on-demand"
+ * and the given rectangle is the area of the screen that gets
+ * updated during (*post)().
+ *
+ * This is useful on devices that are able to DMA only a portion of
+ * the screen to the display panel, upon demand -- as opposed to
+ * constantly refreshing the panel 60 times per second, for instance.
+ *
+ * Only the area defined by this rectangle is guaranteed to be valid, that
+ * is, the driver is not allowed to post anything outside of this
+ * rectangle.
+ *
+ * The rectangle evaluated during (*post)() and specifies which area
+ * of the buffer passed in (*post)() shall to be posted.
+ *
+ * return -EINVAL if width or height <=0, or if left or top < 0
+ */
+ int (*setUpdateRect)(struct framebuffer_device_t* window,
+ int left, int top, int width, int height);
+
+ /*
+ * Post <buffer> to the display (display it on the screen)
+ * The buffer must have been allocated with the
+ * GRALLOC_USAGE_HW_FB usage flag.
+ * buffer must be the same width and height as the display and must NOT
+ * be locked.
+ *
+ * The buffer is shown during the next VSYNC.
+ *
+ * If the same buffer is posted again (possibly after some other buffer),
+ * post() will block until the the first post is completed.
+ *
+ * Internally, post() is expected to lock the buffer so that a
+ * subsequent call to gralloc_module_t::(*lock)() with USAGE_RENDER or
+ * USAGE_*_WRITE will block until it is safe; that is typically once this
+ * buffer is shown and another buffer has been posted.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*post)(struct framebuffer_device_t* dev, buffer_handle_t buffer);
+
+
+ /*
+ * The (*compositionComplete)() method must be called after the
+ * compositor has finished issuing GL commands for client buffers.
+ */
+
+ int (*compositionComplete)(struct framebuffer_device_t* dev);
+
+ /*
+ * This hook is OPTIONAL.
+ *
+ * If non NULL it will be caused by SurfaceFlinger on dumpsys
+ */
+ void (*dump)(struct framebuffer_device_t* dev, char *buff, int buff_len);
+
+ /*
+ * (*enableScreen)() is used to either blank (enable=0) or
+ * unblank (enable=1) the screen this framebuffer is attached to.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*enableScreen)(struct framebuffer_device_t* dev, int enable);
+
+ void* reserved_proc[6];
+
+} framebuffer_device_t;
+
+
+/** convenience API for opening and closing a supported device */
+
+static inline int framebuffer_open(const struct hw_module_t* module,
+ struct framebuffer_device_t** device) {
+ return module->methods->open(module,
+ GRALLOC_HARDWARE_FB0, (struct hw_device_t**)device);
+}
+
+static inline int framebuffer_close(struct framebuffer_device_t* device) {
+ return device->common.close(&device->common);
+}
+
+
+__END_DECLS
+
+#endif // ANDROID_FB_INTERFACE_H
diff --git a/libhardware/include/hardware/fingerprint.h b/libhardware/include/hardware/fingerprint.h
new file mode 100644
index 0000000..ac88c10
--- /dev/null
+++ b/libhardware/include/hardware/fingerprint.h
@@ -0,0 +1,266 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_FINGERPRINT_H
+#define ANDROID_INCLUDE_HARDWARE_FINGERPRINT_H
+
+#include <hardware/hw_auth_token.h>
+
+#define FINGERPRINT_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define FINGERPRINT_MODULE_API_VERSION_2_0 HARDWARE_MODULE_API_VERSION(2, 0)
+#define FINGERPRINT_HARDWARE_MODULE_ID "fingerprint"
+
+typedef enum fingerprint_msg_type {
+ FINGERPRINT_ERROR = -1,
+ FINGERPRINT_ACQUIRED = 1,
+ FINGERPRINT_TEMPLATE_ENROLLING = 3,
+ FINGERPRINT_TEMPLATE_REMOVED = 4,
+ FINGERPRINT_AUTHENTICATED = 5
+} fingerprint_msg_type_t;
+
+/*
+ * Fingerprint errors are meant to tell the framework to terminate the current operation and ask
+ * for the user to correct the situation. These will almost always result in messaging and user
+ * interaction to correct the problem.
+ *
+ * For example, FINGERPRINT_ERROR_CANCELED should follow any acquisition message that results in
+ * a situation where the current operation can't continue without user interaction. For example,
+ * if the sensor is dirty during enrollment and no further enrollment progress can be made,
+ * send FINGERPRINT_ACQUIRED_IMAGER_DIRTY followed by FINGERPRINT_ERROR_CANCELED.
+ */
+typedef enum fingerprint_error {
+ FINGERPRINT_ERROR_HW_UNAVAILABLE = 1, /* The hardware has an error that can't be resolved. */
+ FINGERPRINT_ERROR_UNABLE_TO_PROCESS = 2, /* Bad data; operation can't continue */
+ FINGERPRINT_ERROR_TIMEOUT = 3, /* The operation has timed out waiting for user input. */
+ FINGERPRINT_ERROR_NO_SPACE = 4, /* No space available to store a template */
+ FINGERPRINT_ERROR_CANCELED = 5, /* The current operation can't proceed. See above. */
+ FINGERPRINT_ERROR_UNABLE_TO_REMOVE = 6, /* fingerprint with given id can't be removed */
+ FINGERPRINT_ERROR_VENDOR_BASE = 1000 /* vendor-specific error messages start here */
+} fingerprint_error_t;
+
+/*
+ * Fingerprint acquisition info is meant as feedback for the current operation. Anything but
+ * FINGERPRINT_ACQUIRED_GOOD will be shown to the user as feedback on how to take action on the
+ * current operation. For example, FINGERPRINT_ACQUIRED_IMAGER_DIRTY can be used to tell the user
+ * to clean the sensor. If this will cause the current operation to fail, an additional
+ * FINGERPRINT_ERROR_CANCELED can be sent to stop the operation in progress (e.g. enrollment).
+ * In general, these messages will result in a "Try again" message.
+ */
+typedef enum fingerprint_acquired_info {
+ FINGERPRINT_ACQUIRED_GOOD = 0,
+ FINGERPRINT_ACQUIRED_PARTIAL = 1, /* sensor needs more data, i.e. longer swipe. */
+ FINGERPRINT_ACQUIRED_INSUFFICIENT = 2, /* image doesn't contain enough detail for recognition*/
+ FINGERPRINT_ACQUIRED_IMAGER_DIRTY = 3, /* sensor needs to be cleaned */
+ FINGERPRINT_ACQUIRED_TOO_SLOW = 4, /* mostly swipe-type sensors; not enough data collected */
+ FINGERPRINT_ACQUIRED_TOO_FAST = 5, /* for swipe and area sensors; tell user to slow down*/
+ FINGERPRINT_ACQUIRED_VENDOR_BASE = 1000 /* vendor-specific acquisition messages start here */
+} fingerprint_acquired_info_t;
+
+typedef struct fingerprint_finger_id {
+ uint32_t gid;
+ uint32_t fid;
+} fingerprint_finger_id_t;
+
+typedef struct fingerprint_enroll {
+ fingerprint_finger_id_t finger;
+ /* samples_remaining goes from N (no data collected, but N scans needed)
+ * to 0 (no more data is needed to build a template). */
+ uint32_t samples_remaining;
+ uint64_t msg; /* Vendor specific message. Used for user guidance */
+} fingerprint_enroll_t;
+
+typedef struct fingerprint_removed {
+ fingerprint_finger_id_t finger;
+} fingerprint_removed_t;
+
+typedef struct fingerprint_acquired {
+ fingerprint_acquired_info_t acquired_info; /* information about the image */
+} fingerprint_acquired_t;
+
+typedef struct fingerprint_authenticated {
+ fingerprint_finger_id_t finger;
+ hw_auth_token_t hat;
+} fingerprint_authenticated_t;
+
+typedef struct fingerprint_msg {
+ fingerprint_msg_type_t type;
+ union {
+ fingerprint_error_t error;
+ fingerprint_enroll_t enroll;
+ fingerprint_removed_t removed;
+ fingerprint_acquired_t acquired;
+ fingerprint_authenticated_t authenticated;
+ } data;
+} fingerprint_msg_t;
+
+/* Callback function type */
+typedef void (*fingerprint_notify_t)(const fingerprint_msg_t *msg);
+
+/* Synchronous operation */
+typedef struct fingerprint_device {
+ /**
+ * Common methods of the fingerprint device. This *must* be the first member
+ * of fingerprint_device as users of this structure will cast a hw_device_t
+ * to fingerprint_device pointer in contexts where it's known
+ * the hw_device_t references a fingerprint_device.
+ */
+ struct hw_device_t common;
+
+ /*
+ * Client provided callback function to receive notifications.
+ * Do not set by hand, use the function above instead.
+ */
+ fingerprint_notify_t notify;
+
+ /*
+ * Set notification callback:
+ * Registers a user function that would receive notifications from the HAL
+ * The call will block if the HAL state machine is in busy state until HAL
+ * leaves the busy state.
+ *
+ * Function return: 0 if callback function is successfuly registered
+ * or a negative number in case of error, generally from the errno.h set.
+ */
+ int (*set_notify)(struct fingerprint_device *dev, fingerprint_notify_t notify);
+
+ /*
+ * Fingerprint pre-enroll enroll request:
+ * Generates a unique token to upper layers to indicate the start of an enrollment transaction.
+ * This token will be wrapped by security for verification and passed to enroll() for
+ * verification before enrollment will be allowed. This is to ensure adding a new fingerprint
+ * template was preceded by some kind of credential confirmation (e.g. device password).
+ *
+ * Function return: 0 if function failed
+ * otherwise, a uint64_t of token
+ */
+ uint64_t (*pre_enroll)(struct fingerprint_device *dev);
+
+ /*
+ * Fingerprint enroll request:
+ * Switches the HAL state machine to collect and store a new fingerprint
+ * template. Switches back as soon as enroll is complete
+ * (fingerprint_msg.type == FINGERPRINT_TEMPLATE_ENROLLING &&
+ * fingerprint_msg.data.enroll.samples_remaining == 0)
+ * or after timeout_sec seconds.
+ * The fingerprint template will be assigned to the group gid. User has a choice
+ * to supply the gid or set it to 0 in which case a unique group id will be generated.
+ *
+ * Function return: 0 if enrollment process can be successfully started
+ * or a negative number in case of error, generally from the errno.h set.
+ * A notify() function may be called indicating the error condition.
+ */
+ int (*enroll)(struct fingerprint_device *dev, const hw_auth_token_t *hat,
+ uint32_t gid, uint32_t timeout_sec);
+
+ /*
+ * Finishes the enroll operation and invalidates the pre_enroll() generated challenge.
+ * This will be called at the end of a multi-finger enrollment session to indicate
+ * that no more fingers will be added.
+ *
+ * Function return: 0 if the request is accepted
+ * or a negative number in case of error, generally from the errno.h set.
+ */
+ int (*post_enroll)(struct fingerprint_device *dev);
+
+ /*
+ * get_authenticator_id:
+ * Returns a token associated with the current fingerprint set. This value will
+ * change whenever a new fingerprint is enrolled, thus creating a new fingerprint
+ * set.
+ *
+ * Function return: current authenticator id or 0 if function failed.
+ */
+ uint64_t (*get_authenticator_id)(struct fingerprint_device *dev);
+
+ /*
+ * Cancel pending enroll or authenticate, sending FINGERPRINT_ERROR_CANCELED
+ * to all running clients. Switches the HAL state machine back to the idle state.
+ * Unlike enroll_done() doesn't invalidate the pre_enroll() challenge.
+ *
+ * Function return: 0 if cancel request is accepted
+ * or a negative number in case of error, generally from the errno.h set.
+ */
+ int (*cancel)(struct fingerprint_device *dev);
+
+ /*
+ * Enumerate all the fingerprint templates found in the directory set by
+ * set_active_group()
+ * This is a synchronous call. The function takes:
+ * - A pointer to an array of fingerprint_finger_id_t.
+ * - The size of the array provided, in fingerprint_finger_id_t elements.
+ * Max_size is a bi-directional parameter and returns the actual number
+ * of elements copied to the caller supplied array.
+ * In the absence of errors the function returns the total number of templates
+ * in the user directory.
+ * If the caller has no good guess on the size of the array he should call this
+ * function witn *max_size == 0 and use the return value for the array allocation.
+ * The caller of this function has a complete list of the templates when *max_size
+ * is the same as the function return.
+ *
+ * Function return: Total number of fingerprint templates in the current storage directory.
+ * or a negative number in case of error, generally from the errno.h set.
+ */
+ int (*enumerate)(struct fingerprint_device *dev, fingerprint_finger_id_t *results,
+ uint32_t *max_size);
+
+ /*
+ * Fingerprint remove request:
+ * Deletes a fingerprint template.
+ * Works only within a path set by set_active_group().
+ * notify() will be called with details on the template deleted.
+ * fingerprint_msg.type == FINGERPRINT_TEMPLATE_REMOVED and
+ * fingerprint_msg.data.removed.id indicating the template id removed.
+ *
+ * Function return: 0 if fingerprint template(s) can be successfully deleted
+ * or a negative number in case of error, generally from the errno.h set.
+ */
+ int (*remove)(struct fingerprint_device *dev, uint32_t gid, uint32_t fid);
+
+ /*
+ * Restricts the HAL operation to a set of fingerprints belonging to a
+ * group provided.
+ * The caller must provide a path to a storage location within the user's
+ * data directory.
+ *
+ * Function return: 0 on success
+ * or a negative number in case of error, generally from the errno.h set.
+ */
+ int (*set_active_group)(struct fingerprint_device *dev, uint32_t gid,
+ const char *store_path);
+
+ /*
+ * Authenticates an operation identifed by operation_id
+ *
+ * Function return: 0 on success
+ * or a negative number in case of error, generally from the errno.h set.
+ */
+ int (*authenticate)(struct fingerprint_device *dev, uint64_t operation_id, uint32_t gid);
+
+ /* Reserved for backward binary compatibility */
+ void *reserved[4];
+} fingerprint_device_t;
+
+typedef struct fingerprint_module {
+ /**
+ * Common methods of the fingerprint module. This *must* be the first member
+ * of fingerprint_module as users of this structure will cast a hw_module_t
+ * to fingerprint_module pointer in contexts where it's known
+ * the hw_module_t references a fingerprint_module.
+ */
+ struct hw_module_t common;
+} fingerprint_module_t;
+
+#endif /* ANDROID_INCLUDE_HARDWARE_FINGERPRINT_H */
diff --git a/libhardware/include/hardware/fused_location.h b/libhardware/include/hardware/fused_location.h
new file mode 100644
index 0000000..73360a1
--- /dev/null
+++ b/libhardware/include/hardware/fused_location.h
@@ -0,0 +1,825 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_FUSED_LOCATION_H
+#define ANDROID_INCLUDE_HARDWARE_FUSED_LOCATION_H
+
+#include <hardware/hardware.h>
+
+
+/**
+ * This header file defines the interface of the Fused Location Provider.
+ * Fused Location Provider is designed to fuse data from various sources
+ * like GPS, Wifi, Cell, Sensors, Bluetooth etc to provide a fused location to the
+ * upper layers. The advantage of doing fusion in hardware is power savings.
+ * The goal is to do this without waking up the AP to get additional data.
+ * The software implementation of FLP will decide when to use
+ * the hardware fused location. Other location features like geofencing will
+ * also be implemented using fusion in hardware.
+ */
+__BEGIN_DECLS
+
+#define FLP_HEADER_VERSION 1
+#define FLP_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+#define FLP_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION_2(0, 1, FLP_HEADER_VERSION)
+
+/**
+ * The id of this module
+ */
+#define FUSED_LOCATION_HARDWARE_MODULE_ID "flp"
+
+/**
+ * Name for the FLP location interface
+ */
+#define FLP_LOCATION_INTERFACE "flp_location"
+
+/**
+ * Name for the FLP location interface
+ */
+#define FLP_DIAGNOSTIC_INTERFACE "flp_diagnostic"
+
+/**
+ * Name for the FLP_Geofencing interface.
+ */
+#define FLP_GEOFENCING_INTERFACE "flp_geofencing"
+
+/**
+ * Name for the FLP_device context interface.
+ */
+#define FLP_DEVICE_CONTEXT_INTERFACE "flp_device_context"
+
+/**
+ * Constants to indicate the various subsystems
+ * that will be used.
+ */
+#define FLP_TECH_MASK_GNSS (1U<<0)
+#define FLP_TECH_MASK_WIFI (1U<<1)
+#define FLP_TECH_MASK_SENSORS (1U<<2)
+#define FLP_TECH_MASK_CELL (1U<<3)
+#define FLP_TECH_MASK_BLUETOOTH (1U<<4)
+
+/**
+ * Set when your implementation can produce GNNS-derived locations,
+ * for use with flp_capabilities_callback.
+ *
+ * GNNS is a required capability for a particular feature to be used
+ * (batching or geofencing). If not supported that particular feature
+ * won't be used by the upper layer.
+ */
+#define CAPABILITY_GNSS (1U<<0)
+/**
+ * Set when your implementation can produce WiFi-derived locations, for
+ * use with flp_capabilities_callback.
+ */
+#define CAPABILITY_WIFI (1U<<1)
+/**
+ * Set when your implementation can produce cell-derived locations, for
+ * use with flp_capabilities_callback.
+ */
+#define CAPABILITY_CELL (1U<<3)
+
+/**
+ * Status to return in flp_status_callback when your implementation transitions
+ * from being unsuccessful in determining location to being successful.
+ */
+#define FLP_STATUS_LOCATION_AVAILABLE 0
+/**
+ * Status to return in flp_status_callback when your implementation transitions
+ * from being successful in determining location to being unsuccessful.
+ */
+#define FLP_STATUS_LOCATION_UNAVAILABLE 1
+
+/**
+ * This constant is used with the batched locations
+ * APIs. Batching is mandatory when FLP implementation
+ * is supported. If the flag is set, the hardware implementation
+ * will wake up the application processor when the FIFO is full,
+ * If the flag is not set, the hardware implementation will drop
+ * the oldest data when the FIFO is full.
+ */
+#define FLP_BATCH_WAKEUP_ON_FIFO_FULL 0x0000001
+
+/**
+ * While batching, the implementation should not call the
+ * flp_location_callback on every location fix. However,
+ * sometimes in high power mode, the system might need
+ * a location callback every single time the location
+ * fix has been obtained. This flag controls that option.
+ * Its the responsibility of the upper layers (caller) to switch
+ * it off, if it knows that the AP might go to sleep.
+ * When this bit is on amidst a batching session, batching should
+ * continue while location fixes are reported in real time.
+ */
+#define FLP_BATCH_CALLBACK_ON_LOCATION_FIX 0x0000002
+
+/** Flags to indicate which values are valid in a FlpLocation. */
+typedef uint16_t FlpLocationFlags;
+
+// IMPORTANT: Note that the following values must match
+// constants in the corresponding java file.
+
+/** FlpLocation has valid latitude and longitude. */
+#define FLP_LOCATION_HAS_LAT_LONG (1U<<0)
+/** FlpLocation has valid altitude. */
+#define FLP_LOCATION_HAS_ALTITUDE (1U<<1)
+/** FlpLocation has valid speed. */
+#define FLP_LOCATION_HAS_SPEED (1U<<2)
+/** FlpLocation has valid bearing. */
+#define FLP_LOCATION_HAS_BEARING (1U<<4)
+/** FlpLocation has valid accuracy. */
+#define FLP_LOCATION_HAS_ACCURACY (1U<<8)
+
+
+typedef int64_t FlpUtcTime;
+
+/** Represents a location. */
+typedef struct {
+ /** set to sizeof(FlpLocation) */
+ size_t size;
+
+ /** Flags associated with the location object. */
+ FlpLocationFlags flags;
+
+ /** Represents latitude in degrees. */
+ double latitude;
+
+ /** Represents longitude in degrees. */
+ double longitude;
+
+ /**
+ * Represents altitude in meters above the WGS 84 reference
+ * ellipsoid. */
+ double altitude;
+
+ /** Represents speed in meters per second. */
+ float speed;
+
+ /** Represents heading in degrees. */
+ float bearing;
+
+ /** Represents expected accuracy in meters. */
+ float accuracy;
+
+ /** Timestamp for the location fix. */
+ FlpUtcTime timestamp;
+
+ /** Sources used, will be Bitwise OR of the FLP_TECH_MASK bits. */
+ uint32_t sources_used;
+} FlpLocation;
+
+typedef enum {
+ ASSOCIATE_JVM,
+ DISASSOCIATE_JVM,
+} ThreadEvent;
+
+/**
+ * Callback with location information.
+ * Can only be called from a thread associated to JVM using set_thread_event_cb.
+ * Parameters:
+ * num_locations is the number of batched locations available.
+ * location is the pointer to an array of pointers to location objects.
+ */
+typedef void (*flp_location_callback)(int32_t num_locations, FlpLocation** location);
+
+/**
+ * Callback utility for acquiring a wakelock.
+ * This can be used to prevent the CPU from suspending while handling FLP events.
+ */
+typedef void (*flp_acquire_wakelock)();
+
+/**
+ * Callback utility for releasing the FLP wakelock.
+ */
+typedef void (*flp_release_wakelock)();
+
+/**
+ * Callback for associating a thread that can call into the Java framework code.
+ * This must be used to initialize any threads that report events up to the framework.
+ * Return value:
+ * FLP_RESULT_SUCCESS on success.
+ * FLP_RESULT_ERROR if the association failed in the current thread.
+ */
+typedef int (*flp_set_thread_event)(ThreadEvent event);
+
+/**
+ * Callback for technologies supported by this implementation.
+ *
+ * Parameters: capabilities is a bitmask of FLP_CAPABILITY_* values describing
+ * which features your implementation supports. You should support
+ * CAPABILITY_GNSS at a minimum for your implementation to be utilized. You can
+ * return 0 in FlpGeofenceCallbacks to indicate you don't support geofencing,
+ * or 0 in FlpCallbacks to indicate you don't support location batching.
+ */
+typedef void (*flp_capabilities_callback)(int capabilities);
+
+/**
+ * Callback with status information on the ability to compute location.
+ * To avoid waking up the application processor you should only send
+ * changes in status (you shouldn't call this method twice in a row
+ * with the same status value). As a guideline you should not call this
+ * more frequently then the requested batch period set with period_ns
+ * in FlpBatchOptions. For example if period_ns is set to 5 minutes and
+ * the status changes many times in that interval, you should only report
+ * one status change every 5 minutes.
+ *
+ * Parameters:
+ * status is one of FLP_STATUS_LOCATION_AVAILABLE
+ * or FLP_STATUS_LOCATION_UNAVAILABLE.
+ */
+typedef void (*flp_status_callback)(int32_t status);
+
+/** FLP callback structure. */
+typedef struct {
+ /** set to sizeof(FlpCallbacks) */
+ size_t size;
+ flp_location_callback location_cb;
+ flp_acquire_wakelock acquire_wakelock_cb;
+ flp_release_wakelock release_wakelock_cb;
+ flp_set_thread_event set_thread_event_cb;
+ flp_capabilities_callback flp_capabilities_cb;
+ flp_status_callback flp_status_cb;
+} FlpCallbacks;
+
+
+/** Options with the batching FLP APIs */
+typedef struct {
+ /**
+ * Maximum power in mW that the underlying implementation
+ * can use for this batching call.
+ * If max_power_allocation_mW is 0, only fixes that are generated
+ * at no additional cost of power shall be reported.
+ */
+ double max_power_allocation_mW;
+
+ /** Bitwise OR of the FLP_TECH_MASKS to use */
+ uint32_t sources_to_use;
+
+ /**
+ * FLP_BATCH_WAKEUP_ON_FIFO_FULL - If set the hardware
+ * will wake up the AP when the buffer is full. If not set, the
+ * hardware will drop the oldest location object.
+ *
+ * FLP_BATCH_CALLBACK_ON_LOCATION_FIX - If set the location
+ * callback will be called every time there is a location fix.
+ * Its the responsibility of the upper layers (caller) to switch
+ * it off, if it knows that the AP might go to sleep. When this
+ * bit is on amidst a batching session, batching should continue
+ * while location fixes are reported in real time.
+ *
+ * Other flags to be bitwised ORed in the future.
+ */
+ uint32_t flags;
+
+ /**
+ * Frequency with which location needs to be batched in nano
+ * seconds.
+ */
+ int64_t period_ns;
+
+ /**
+ * The smallest displacement between reported locations in meters.
+ *
+ * If set to 0, then you should report locations at the requested
+ * interval even if the device is stationary. If positive, you
+ * can use this parameter as a hint to save power (e.g. throttling
+ * location period if the user hasn't traveled close to the displacement
+ * threshold). Even small positive values can be interpreted to mean
+ * that you don't have to compute location when the device is stationary.
+ *
+ * There is no need to filter location delivery based on this parameter.
+ * Locations can be delivered even if they have a displacement smaller than
+ * requested. This parameter can safely be ignored at the cost of potential
+ * power savings.
+ */
+ float smallest_displacement_meters;
+} FlpBatchOptions;
+
+#define FLP_RESULT_SUCCESS 0
+#define FLP_RESULT_ERROR -1
+#define FLP_RESULT_INSUFFICIENT_MEMORY -2
+#define FLP_RESULT_TOO_MANY_GEOFENCES -3
+#define FLP_RESULT_ID_EXISTS -4
+#define FLP_RESULT_ID_UNKNOWN -5
+#define FLP_RESULT_INVALID_GEOFENCE_TRANSITION -6
+
+/**
+ * Represents the standard FLP interface.
+ */
+typedef struct {
+ /**
+ * set to sizeof(FlpLocationInterface)
+ */
+ size_t size;
+
+ /**
+ * Opens the interface and provides the callback routines
+ * to the implementation of this interface. Once called you should respond
+ * by calling the flp_capabilities_callback in FlpCallbacks to
+ * specify the capabilities that your implementation supports.
+ */
+ int (*init)(FlpCallbacks* callbacks );
+
+ /**
+ * Return the batch size (in number of FlpLocation objects)
+ * available in the hardware. Note, different HW implementations
+ * may have different sample sizes. This shall return number
+ * of samples defined in the format of FlpLocation.
+ * This will be used by the upper layer, to decide on the batching
+ * interval and whether the AP should be woken up or not.
+ */
+ int (*get_batch_size)();
+
+ /**
+ * Start batching locations. This API is primarily used when the AP is
+ * asleep and the device can batch locations in the hardware.
+ * flp_location_callback is used to return the locations. When the buffer
+ * is full and FLP_BATCH_WAKEUP_ON_FIFO_FULL is used, the AP is woken up.
+ * When the buffer is full and FLP_BATCH_WAKEUP_ON_FIFO_FULL is not set,
+ * the oldest location object is dropped. In this case the AP will not be
+ * woken up. The upper layer will use get_batched_location
+ * API to explicitly ask for the location.
+ * If FLP_BATCH_CALLBACK_ON_LOCATION_FIX is set, the implementation
+ * will call the flp_location_callback every single time there is a location
+ * fix. This overrides FLP_BATCH_WAKEUP_ON_FIFO_FULL flag setting.
+ * It's the responsibility of the upper layers (caller) to switch
+ * it off, if it knows that the AP might go to sleep. This is useful
+ * for nagivational applications when the system is in high power mode.
+ * Parameters:
+ * id - Id for the request.
+ * options - See FlpBatchOptions struct definition.
+ * Return value:
+ * FLP_RESULT_SUCCESS on success, FLP_RESULT_INSUFFICIENT_MEMORY,
+ * FLP_RESULT_ID_EXISTS, FLP_RESULT_ERROR on failure.
+ */
+ int (*start_batching)(int id, FlpBatchOptions* options);
+
+ /**
+ * Update FlpBatchOptions associated with a batching request.
+ * When a batching operation is in progress and a batching option
+ * such as FLP_BATCH_WAKEUP_ON_FIFO_FULL needs to be updated, this API
+ * will be used. For instance, this can happen when the AP is awake and
+ * the maps application is being used.
+ * Parameters:
+ * id - Id of an existing batch request.
+ * new_options - Updated FlpBatchOptions
+ * Return value:
+ * FLP_RESULT_SUCCESS on success, FLP_RESULT_ID_UNKNOWN,
+ * FLP_RESULT_ERROR on error.
+ */
+ int (*update_batching_options)(int id, FlpBatchOptions* new_options);
+
+ /**
+ * Stop batching.
+ * Parameters:
+ * id - Id for the request.
+ * Return Value:
+ * FLP_RESULT_SUCCESS on success, FLP_RESULT_ID_UNKNOWN or
+ * FLP_RESULT_ERROR on failure.
+ */
+ int (*stop_batching)(int id);
+
+ /**
+ * Closes the interface. If any batch operations are in progress,
+ * they should be stopped.
+ */
+ void (*cleanup)();
+
+ /**
+ * Get the fused location that was batched.
+ * flp_location_callback is used to return the location. The location object
+ * is dropped from the buffer only when the buffer is full. Do not remove it
+ * from the buffer just because it has been returned using the callback.
+ * In other words, when there is no new location object, two calls to
+ * get_batched_location(1) should return the same location object.
+ * Parameters:
+ * last_n_locations - Number of locations to get. This can be one or many.
+ * If the last_n_locations is 1, you get the latest location known to the
+ * hardware.
+ */
+ void (*get_batched_location)(int last_n_locations);
+
+ /**
+ * Injects current location from another location provider
+ * latitude and longitude are measured in degrees
+ * expected accuracy is measured in meters
+ * Parameters:
+ * location - The location object being injected.
+ * Return value: FLP_RESULT_SUCCESS or FLP_RESULT_ERROR.
+ */
+ int (*inject_location)(FlpLocation* location);
+
+ /**
+ * Get a pointer to extension information.
+ */
+ const void* (*get_extension)(const char* name);
+
+ /**
+ * Retrieve all batched locations currently stored and clear the buffer.
+ * flp_location_callback MUST be called in response, even if there are
+ * no locations to flush (in which case num_locations should be 0).
+ * Subsequent calls to get_batched_location or flush_batched_locations
+ * should not return any of the locations returned in this call.
+ */
+ void (*flush_batched_locations)();
+} FlpLocationInterface;
+
+struct flp_device_t {
+ struct hw_device_t common;
+
+ /**
+ * Get a handle to the FLP Interface.
+ */
+ const FlpLocationInterface* (*get_flp_interface)(struct flp_device_t* dev);
+};
+
+/**
+ * Callback for reports diagnostic data into the Java framework code.
+*/
+typedef void (*report_data)(char* data, int length);
+
+/**
+ * FLP diagnostic callback structure.
+ * Currently, not used - but this for future extension.
+ */
+typedef struct {
+ /** set to sizeof(FlpDiagnosticCallbacks) */
+ size_t size;
+
+ flp_set_thread_event set_thread_event_cb;
+
+ /** reports diagnostic data into the Java framework code */
+ report_data data_cb;
+} FlpDiagnosticCallbacks;
+
+/** Extended interface for diagnostic support. */
+typedef struct {
+ /** set to sizeof(FlpDiagnosticInterface) */
+ size_t size;
+
+ /**
+ * Opens the diagnostic interface and provides the callback routines
+ * to the implemenation of this interface.
+ */
+ void (*init)(FlpDiagnosticCallbacks* callbacks);
+
+ /**
+ * Injects diagnostic data into the FLP subsystem.
+ * Return 0 on success, -1 on error.
+ **/
+ int (*inject_data)(char* data, int length );
+} FlpDiagnosticInterface;
+
+/**
+ * Context setting information.
+ * All these settings shall be injected to FLP HAL at FLP init time.
+ * Following that, only the changed setting need to be re-injected
+ * upon changes.
+ */
+
+#define FLP_DEVICE_CONTEXT_GPS_ENABLED (1U<<0)
+#define FLP_DEVICE_CONTEXT_AGPS_ENABLED (1U<<1)
+#define FLP_DEVICE_CONTEXT_NETWORK_POSITIONING_ENABLED (1U<<2)
+#define FLP_DEVICE_CONTEXT_WIFI_CONNECTIVITY_ENABLED (1U<<3)
+#define FLP_DEVICE_CONTEXT_WIFI_POSITIONING_ENABLED (1U<<4)
+#define FLP_DEVICE_CONTEXT_HW_NETWORK_POSITIONING_ENABLED (1U<<5)
+#define FLP_DEVICE_CONTEXT_AIRPLANE_MODE_ON (1U<<6)
+#define FLP_DEVICE_CONTEXT_DATA_ENABLED (1U<<7)
+#define FLP_DEVICE_CONTEXT_ROAMING_ENABLED (1U<<8)
+#define FLP_DEVICE_CONTEXT_CURRENTLY_ROAMING (1U<<9)
+#define FLP_DEVICE_CONTEXT_SENSOR_ENABLED (1U<<10)
+#define FLP_DEVICE_CONTEXT_BLUETOOTH_ENABLED (1U<<11)
+#define FLP_DEVICE_CONTEXT_CHARGER_ON (1U<<12)
+
+/** Extended interface for device context support. */
+typedef struct {
+ /** set to sizeof(FlpDeviceContextInterface) */
+ size_t size;
+
+ /**
+ * Injects debug data into the FLP subsystem.
+ * Return 0 on success, -1 on error.
+ **/
+ int (*inject_device_context)(uint32_t enabledMask);
+} FlpDeviceContextInterface;
+
+
+/**
+ * There are 3 states associated with a Geofence: Inside, Outside, Unknown.
+ * There are 3 transitions: ENTERED, EXITED, UNCERTAIN.
+ *
+ * An example state diagram with confidence level: 95% and Unknown time limit
+ * set as 30 secs is shown below. (confidence level and Unknown time limit are
+ * explained latter)
+ * ____________________________
+ * | Unknown (30 secs) |
+ * """"""""""""""""""""""""""""
+ * ^ | | ^
+ * UNCERTAIN| |ENTERED EXITED| |UNCERTAIN
+ * | v v |
+ * ________ EXITED _________
+ * | Inside | -----------> | Outside |
+ * | | <----------- | |
+ * """""""" ENTERED """""""""
+ *
+ * Inside state: We are 95% confident that the user is inside the geofence.
+ * Outside state: We are 95% confident that the user is outside the geofence
+ * Unknown state: Rest of the time.
+ *
+ * The Unknown state is better explained with an example:
+ *
+ * __________
+ * | c|
+ * | ___ | _______
+ * | |a| | | b |
+ * | """ | """""""
+ * | |
+ * """"""""""
+ * In the diagram above, "a" and "b" are 2 geofences and "c" is the accuracy
+ * circle reported by the FLP subsystem. Now with regard to "b", the system is
+ * confident that the user is outside. But with regard to "a" is not confident
+ * whether it is inside or outside the geofence. If the accuracy remains the
+ * same for a sufficient period of time, the UNCERTAIN transition would be
+ * triggered with the state set to Unknown. If the accuracy improves later, an
+ * appropriate transition should be triggered. This "sufficient period of time"
+ * is defined by the parameter in the add_geofence_area API.
+ * In other words, Unknown state can be interpreted as a state in which the
+ * FLP subsystem isn't confident enough that the user is either inside or
+ * outside the Geofence. It moves to Unknown state only after the expiry of the
+ * timeout.
+ *
+ * The geofence callback needs to be triggered for the ENTERED and EXITED
+ * transitions, when the FLP system is confident that the user has entered
+ * (Inside state) or exited (Outside state) the Geofence. An implementation
+ * which uses a value of 95% as the confidence is recommended. The callback
+ * should be triggered only for the transitions requested by the
+ * add_geofence_area call.
+ *
+ * Even though the diagram and explanation talks about states and transitions,
+ * the callee is only interested in the transistions. The states are mentioned
+ * here for illustrative purposes.
+ *
+ * Startup Scenario: When the device boots up, if an application adds geofences,
+ * and then we get an accurate FLP location fix, it needs to trigger the
+ * appropriate (ENTERED or EXITED) transition for every Geofence it knows about.
+ * By default, all the Geofences will be in the Unknown state.
+ *
+ * When the FLP system is unavailable, flp_geofence_status_callback should be
+ * called to inform the upper layers of the same. Similarly, when it becomes
+ * available the callback should be called. This is a global state while the
+ * UNKNOWN transition described above is per geofence.
+ *
+ */
+#define FLP_GEOFENCE_TRANSITION_ENTERED (1L<<0)
+#define FLP_GEOFENCE_TRANSITION_EXITED (1L<<1)
+#define FLP_GEOFENCE_TRANSITION_UNCERTAIN (1L<<2)
+
+#define FLP_GEOFENCE_MONITOR_STATUS_UNAVAILABLE (1L<<0)
+#define FLP_GEOFENCE_MONITOR_STATUS_AVAILABLE (1L<<1)
+
+/**
+ * The callback associated with the geofence.
+ * Parameters:
+ * geofence_id - The id associated with the add_geofence_area.
+ * location - The current location as determined by the FLP subsystem.
+ * transition - Can be one of FLP_GEOFENCE_TRANSITION_ENTERED, FLP_GEOFENCE_TRANSITION_EXITED,
+ * FLP_GEOFENCE_TRANSITION_UNCERTAIN.
+ * timestamp - Timestamp when the transition was detected; -1 if not available.
+ * sources_used - Bitwise OR of FLP_TECH_MASK flags indicating which
+ * subsystems were used.
+ *
+ * The callback should only be called when the caller is interested in that
+ * particular transition. For instance, if the caller is interested only in
+ * ENTERED transition, then the callback should NOT be called with the EXITED
+ * transition.
+ *
+ * IMPORTANT: If a transition is triggered resulting in this callback, the
+ * subsystem will wake up the application processor, if its in suspend state.
+ */
+typedef void (*flp_geofence_transition_callback) (int32_t geofence_id, FlpLocation* location,
+ int32_t transition, FlpUtcTime timestamp, uint32_t sources_used);
+
+/**
+ * The callback associated with the availablity of one the sources used for geofence
+ * monitoring by the FLP sub-system For example, if the GPS system determines that it cannot
+ * monitor geofences because of lack of reliability or unavailability of the GPS signals,
+ * it will call this callback with FLP_GEOFENCE_MONITOR_STATUS_UNAVAILABLE parameter and the
+ * source set to FLP_TECH_MASK_GNSS.
+ *
+ * Parameters:
+ * status - FLP_GEOFENCE_MONITOR_STATUS_UNAVAILABLE or FLP_GEOFENCE_MONITOR_STATUS_AVAILABLE.
+ * source - One of the FLP_TECH_MASKS
+ * last_location - Last known location.
+ */
+typedef void (*flp_geofence_monitor_status_callback) (int32_t status, uint32_t source,
+ FlpLocation* last_location);
+
+/**
+ * The callback associated with the add_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * result - FLP_RESULT_SUCCESS
+ * FLP_RESULT_ERROR_TOO_MANY_GEOFENCES - geofence limit has been reached.
+ * FLP_RESULT_ID_EXISTS - geofence with id already exists
+ * FLP_RESULT_INVALID_GEOFENCE_TRANSITION - the monitorTransition contains an
+ * invalid transition
+ * FLP_RESULT_ERROR - for other errors.
+ */
+typedef void (*flp_geofence_add_callback) (int32_t geofence_id, int32_t result);
+
+/**
+ * The callback associated with the remove_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * result - FLP_RESULT_SUCCESS
+ * FLP_RESULT_ID_UNKNOWN - for invalid id
+ * FLP_RESULT_ERROR for others.
+ */
+typedef void (*flp_geofence_remove_callback) (int32_t geofence_id, int32_t result);
+
+
+/**
+ * The callback associated with the pause_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * result - FLP_RESULT_SUCCESS
+ * FLP_RESULT__ID_UNKNOWN - for invalid id
+ * FLP_RESULT_INVALID_TRANSITION -
+ * when monitor_transitions is invalid
+ * FLP_RESULT_ERROR for others.
+ */
+typedef void (*flp_geofence_pause_callback) (int32_t geofence_id, int32_t result);
+
+/**
+ * The callback associated with the resume_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * result - FLP_RESULT_SUCCESS
+ * FLP_RESULT_ID_UNKNOWN - for invalid id
+ * FLP_RESULT_ERROR for others.
+ */
+typedef void (*flp_geofence_resume_callback) (int32_t geofence_id, int32_t result);
+
+typedef struct {
+ /** set to sizeof(FlpGeofenceCallbacks) */
+ size_t size;
+ flp_geofence_transition_callback geofence_transition_callback;
+ flp_geofence_monitor_status_callback geofence_status_callback;
+ flp_geofence_add_callback geofence_add_callback;
+ flp_geofence_remove_callback geofence_remove_callback;
+ flp_geofence_pause_callback geofence_pause_callback;
+ flp_geofence_resume_callback geofence_resume_callback;
+ flp_set_thread_event set_thread_event_cb;
+ flp_capabilities_callback flp_capabilities_cb;
+} FlpGeofenceCallbacks;
+
+
+/** Type of geofence */
+typedef enum {
+ TYPE_CIRCLE = 0,
+} GeofenceType;
+
+/** Circular geofence is represented by lat / long / radius */
+typedef struct {
+ double latitude;
+ double longitude;
+ double radius_m;
+} GeofenceCircle;
+
+/** Represents the type of geofence and data */
+typedef struct {
+ GeofenceType type;
+ union {
+ GeofenceCircle circle;
+ } geofence;
+} GeofenceData;
+
+/** Geofence Options */
+typedef struct {
+ /**
+ * The current state of the geofence. For example, if
+ * the system already knows that the user is inside the geofence,
+ * this will be set to FLP_GEOFENCE_TRANSITION_ENTERED. In most cases, it
+ * will be FLP_GEOFENCE_TRANSITION_UNCERTAIN. */
+ int last_transition;
+
+ /**
+ * Transitions to monitor. Bitwise OR of
+ * FLP_GEOFENCE_TRANSITION_ENTERED, FLP_GEOFENCE_TRANSITION_EXITED and
+ * FLP_GEOFENCE_TRANSITION_UNCERTAIN.
+ */
+ int monitor_transitions;
+
+ /**
+ * Defines the best-effort description
+ * of how soon should the callback be called when the transition
+ * associated with the Geofence is triggered. For instance, if set
+ * to 1000 millseconds with FLP_GEOFENCE_TRANSITION_ENTERED, the callback
+ * should be called 1000 milliseconds within entering the geofence.
+ * This parameter is defined in milliseconds.
+ * NOTE: This is not to be confused with the rate that the GPS is
+ * polled at. It is acceptable to dynamically vary the rate of
+ * sampling the GPS for power-saving reasons; thus the rate of
+ * sampling may be faster or slower than this.
+ */
+ int notification_responsivenes_ms;
+
+ /**
+ * The time limit after which the UNCERTAIN transition
+ * should be triggered. This paramter is defined in milliseconds.
+ */
+ int unknown_timer_ms;
+
+ /**
+ * The sources to use for monitoring geofences. Its a BITWISE-OR
+ * of FLP_TECH_MASK flags.
+ */
+ uint32_t sources_to_use;
+} GeofenceOptions;
+
+/** Geofence struct */
+typedef struct {
+ int32_t geofence_id;
+ GeofenceData* data;
+ GeofenceOptions* options;
+} Geofence;
+
+/** Extended interface for FLP_Geofencing support */
+typedef struct {
+ /** set to sizeof(FlpGeofencingInterface) */
+ size_t size;
+
+ /**
+ * Opens the geofence interface and provides the callback routines
+ * to the implemenation of this interface. Once called you should respond
+ * by calling the flp_capabilities_callback in FlpGeofenceCallbacks to
+ * specify the capabilities that your implementation supports.
+ */
+ void (*init)( FlpGeofenceCallbacks* callbacks );
+
+ /**
+ * Add a list of geofences.
+ * Parameters:
+ * number_of_geofences - The number of geofences that needed to be added.
+ * geofences - Pointer to array of pointers to Geofence structure.
+ */
+ void (*add_geofences) (int32_t number_of_geofences, Geofence** geofences);
+
+ /**
+ * Pause monitoring a particular geofence.
+ * Parameters:
+ * geofence_id - The id for the geofence.
+ */
+ void (*pause_geofence) (int32_t geofence_id);
+
+ /**
+ * Resume monitoring a particular geofence.
+ * Parameters:
+ * geofence_id - The id for the geofence.
+ * monitor_transitions - Which transitions to monitor. Bitwise OR of
+ * FLP_GEOFENCE_TRANSITION_ENTERED, FLP_GEOFENCE_TRANSITION_EXITED and
+ * FLP_GEOFENCE_TRANSITION_UNCERTAIN.
+ * This supersedes the value associated provided in the
+ * add_geofence_area call.
+ */
+ void (*resume_geofence) (int32_t geofence_id, int monitor_transitions);
+
+ /**
+ * Modify a particular geofence option.
+ * Parameters:
+ * geofence_id - The id for the geofence.
+ * options - Various options associated with the geofence. See
+ * GeofenceOptions structure for details.
+ */
+ void (*modify_geofence_option) (int32_t geofence_id, GeofenceOptions* options);
+
+ /**
+ * Remove a list of geofences. After the function returns, no notifications
+ * should be sent.
+ * Parameter:
+ * number_of_geofences - The number of geofences that needed to be added.
+ * geofence_id - Pointer to array of geofence_ids to be removed.
+ */
+ void (*remove_geofences) (int32_t number_of_geofences, int32_t* geofence_id);
+} FlpGeofencingInterface;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_HARDWARE_FLP_H */
+
diff --git a/libhardware/include/hardware/gatekeeper.h b/libhardware/include/hardware/gatekeeper.h
new file mode 100644
index 0000000..2bb2b08
--- /dev/null
+++ b/libhardware/include/hardware/gatekeeper.h
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_GATEKEEPER_H
+#define ANDROID_HARDWARE_GATEKEEPER_H
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define GATEKEEPER_HARDWARE_MODULE_ID "gatekeeper"
+
+#define GATEKEEPER_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+
+#define HARDWARE_GATEKEEPER "gatekeeper"
+
+struct gatekeeper_module {
+ /**
+ * Comon methods of the gatekeeper module. This *must* be the first member of
+ * gatekeeper_module as users of this structure will cast a hw_module_t to
+ * a gatekeeper_module pointer in the appropriate context.
+ */
+ hw_module_t common;
+};
+
+struct gatekeeper_device {
+ /**
+ * Common methods of the gatekeeper device. As above, this must be the first
+ * member of keymaster_device.
+ */
+ hw_device_t common;
+
+ /**
+ * Enrolls desired_password, which should be derived from a user selected pin or password,
+ * with the authentication factor private key used only for enrolling authentication
+ * factor data.
+ *
+ * If there was already a password enrolled, it should be provided in
+ * current_password_handle, along with the current password in current_password
+ * that should validate against current_password_handle.
+ *
+ * Parameters:
+ * - dev: pointer to gatekeeper_device acquired via calls to gatekeeper_open
+ * - uid: the Android user identifier
+ *
+ * - current_password_handle: the currently enrolled password handle the user
+ * wants to replace. May be null if there's no currently enrolled password.
+ * - current_password_handle_length: the length in bytes of the buffer pointed
+ * at by current_password_handle. Must be 0 if current_password_handle is NULL.
+ *
+ * - current_password: the user's current password in plain text. If presented,
+ * it MUST verify against current_password_handle.
+ * - current_password_length: the size in bytes of the buffer pointed at by
+ * current_password. Must be 0 if the current_password is NULL.
+ *
+ * - desired_password: the new password the user wishes to enroll in plain-text.
+ * Cannot be NULL.
+ * - desired_password_length: the length in bytes of the buffer pointed at by
+ * desired_password.
+ *
+ * - enrolled_password_handle: on success, a buffer will be allocated with the
+ * new password handle referencing the password provided in desired_password.
+ * This buffer can be used on subsequent calls to enroll or verify.
+ * The caller is responsible for deallocating this buffer via a call to delete[]
+ * - enrolled_password_handle_length: pointer to the length in bytes of the buffer allocated
+ * by this function and pointed to by *enrolled_password_handle_length.
+ *
+ * Returns:
+ * - 0 on success
+ * - An error code < 0 on failure, or
+ * - A timeout value T > 0 if the call should not be re-attempted until T milliseconds
+ * have elapsed.
+ *
+ * On error, enrolled_password_handle will not be allocated.
+ */
+ int (*enroll)(const struct gatekeeper_device *dev, uint32_t uid,
+ const uint8_t *current_password_handle, uint32_t current_password_handle_length,
+ const uint8_t *current_password, uint32_t current_password_length,
+ const uint8_t *desired_password, uint32_t desired_password_length,
+ uint8_t **enrolled_password_handle, uint32_t *enrolled_password_handle_length);
+
+ /**
+ * Verifies provided_password matches enrolled_password_handle.
+ *
+ * Implementations of this module may retain the result of this call
+ * to attest to the recency of authentication.
+ *
+ * On success, writes the address of a verification token to auth_token,
+ * usable to attest password verification to other trusted services. Clients
+ * may pass NULL for this value.
+ *
+ * Parameters:
+ * - dev: pointer to gatekeeper_device acquired via calls to gatekeeper_open
+ * - uid: the Android user identifier
+ *
+ * - challenge: An optional challenge to authenticate against, or 0. Used when a separate
+ * authenticator requests password verification, or for transactional
+ * password authentication.
+ *
+ * - enrolled_password_handle: the currently enrolled password handle that the
+ * user wishes to verify against.
+ * - enrolled_password_handle_length: the length in bytes of the buffer pointed
+ * to by enrolled_password_handle
+ *
+ * - provided_password: the plaintext password to be verified against the
+ * enrolled_password_handle
+ * - provided_password_length: the length in bytes of the buffer pointed to by
+ * provided_password
+ *
+ * - auth_token: on success, a buffer containing the authentication token
+ * resulting from this verification is assigned to *auth_token. The caller
+ * is responsible for deallocating this memory via a call to delete[]
+ * - auth_token_length: on success, the length in bytes of the authentication
+ * token assigned to *auth_token will be assigned to *auth_token_length
+ *
+ * - request_reenroll: a request to the upper layers to re-enroll the verified
+ * password due to a version change. Not set if verification fails.
+ *
+ * Returns:
+ * - 0 on success
+ * - An error code < 0 on failure, or
+ * - A timeout value T > 0 if the call should not be re-attempted until T milliseconds
+ * have elapsed.
+ * On error, auth token will not be allocated
+ */
+ int (*verify)(const struct gatekeeper_device *dev, uint32_t uid, uint64_t challenge,
+ const uint8_t *enrolled_password_handle, uint32_t enrolled_password_handle_length,
+ const uint8_t *provided_password, uint32_t provided_password_length,
+ uint8_t **auth_token, uint32_t *auth_token_length, bool *request_reenroll);
+
+ /*
+ * Deletes the enrolled_password_handle associated wth the uid. Once deleted
+ * the user cannot be verified anymore.
+ * This function is optional and should be set to NULL if it is not implemented.
+ *
+ * Parameters
+ * - dev: pointer to gatekeeper_device acquired via calls to gatekeeper_open
+ * - uid: the Android user identifier
+ *
+ * Returns:
+ * - 0 on success
+ * - An error code < 0 on failure
+ */
+ int (*delete_user)(const struct gatekeeper_device *dev, uint32_t uid);
+
+ /*
+ * Deletes all the enrolled_password_handles for all uid's. Once called,
+ * no users will be enrolled on the device.
+ * This function is optional and should be set to NULL if it is not implemented.
+ *
+ * Parameters
+ * - dev: pointer to gatekeeper_device acquired via calls to gatekeeper_open
+ *
+ * Returns:
+ * - 0 on success
+ * - An error code < 0 on failure
+ */
+ int (*delete_all_users)(const struct gatekeeper_device *dev);
+};
+
+typedef struct gatekeeper_device gatekeeper_device_t;
+
+static inline int gatekeeper_open(const struct hw_module_t *module,
+ gatekeeper_device_t **device) {
+ return module->methods->open(module, HARDWARE_GATEKEEPER,
+ (struct hw_device_t **) device);
+}
+
+static inline int gatekeeper_close(gatekeeper_device_t *device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_HARDWARE_GATEKEEPER_H
diff --git a/libhardware/include/hardware/gps.h b/libhardware/include/hardware/gps.h
new file mode 100644
index 0000000..76b6cb7
--- /dev/null
+++ b/libhardware/include/hardware/gps.h
@@ -0,0 +1,1871 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_GPS_H
+#define ANDROID_INCLUDE_HARDWARE_GPS_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <pthread.h>
+#include <sys/socket.h>
+#include <stdbool.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define GPS_HARDWARE_MODULE_ID "gps"
+
+
+/** Milliseconds since January 1, 1970 */
+typedef int64_t GpsUtcTime;
+
+/** Maximum number of SVs for gps_sv_status_callback(). */
+#define GPS_MAX_SVS 32
+
+/** Maximum number of Measurements in gps_measurement_callback(). */
+#define GPS_MAX_MEASUREMENT 32
+
+/** Requested operational mode for GPS operation. */
+typedef uint32_t GpsPositionMode;
+// IMPORTANT: Note that the following values must match
+// constants in GpsLocationProvider.java.
+/** Mode for running GPS standalone (no assistance). */
+#define GPS_POSITION_MODE_STANDALONE 0
+/** AGPS MS-Based mode. */
+#define GPS_POSITION_MODE_MS_BASED 1
+/**
+ * AGPS MS-Assisted mode. This mode is not maintained by the platform anymore.
+ * It is strongly recommended to use GPS_POSITION_MODE_MS_BASE instead.
+ */
+#define GPS_POSITION_MODE_MS_ASSISTED 2
+
+/** Requested recurrence mode for GPS operation. */
+typedef uint32_t GpsPositionRecurrence;
+// IMPORTANT: Note that the following values must match
+// constants in GpsLocationProvider.java.
+/** Receive GPS fixes on a recurring basis at a specified period. */
+#define GPS_POSITION_RECURRENCE_PERIODIC 0
+/** Request a single shot GPS fix. */
+#define GPS_POSITION_RECURRENCE_SINGLE 1
+
+/** GPS status event values. */
+typedef uint16_t GpsStatusValue;
+// IMPORTANT: Note that the following values must match
+// constants in GpsLocationProvider.java.
+/** GPS status unknown. */
+#define GPS_STATUS_NONE 0
+/** GPS has begun navigating. */
+#define GPS_STATUS_SESSION_BEGIN 1
+/** GPS has stopped navigating. */
+#define GPS_STATUS_SESSION_END 2
+/** GPS has powered on but is not navigating. */
+#define GPS_STATUS_ENGINE_ON 3
+/** GPS is powered off. */
+#define GPS_STATUS_ENGINE_OFF 4
+
+/** Flags to indicate which values are valid in a GpsLocation. */
+typedef uint16_t GpsLocationFlags;
+// IMPORTANT: Note that the following values must match
+// constants in GpsLocationProvider.java.
+/** GpsLocation has valid latitude and longitude. */
+#define GPS_LOCATION_HAS_LAT_LONG 0x0001
+/** GpsLocation has valid altitude. */
+#define GPS_LOCATION_HAS_ALTITUDE 0x0002
+/** GpsLocation has valid speed. */
+#define GPS_LOCATION_HAS_SPEED 0x0004
+/** GpsLocation has valid bearing. */
+#define GPS_LOCATION_HAS_BEARING 0x0008
+/** GpsLocation has valid accuracy. */
+#define GPS_LOCATION_HAS_ACCURACY 0x0010
+
+/** Flags for the gps_set_capabilities callback. */
+
+/** GPS HAL schedules fixes for GPS_POSITION_RECURRENCE_PERIODIC mode.
+ If this is not set, then the framework will use 1000ms for min_interval
+ and will start and call start() and stop() to schedule the GPS.
+ */
+#define GPS_CAPABILITY_SCHEDULING 0x0000001
+/** GPS supports MS-Based AGPS mode */
+#define GPS_CAPABILITY_MSB 0x0000002
+/** GPS supports MS-Assisted AGPS mode */
+#define GPS_CAPABILITY_MSA 0x0000004
+/** GPS supports single-shot fixes */
+#define GPS_CAPABILITY_SINGLE_SHOT 0x0000008
+/** GPS supports on demand time injection */
+#define GPS_CAPABILITY_ON_DEMAND_TIME 0x0000010
+/** GPS supports Geofencing */
+#define GPS_CAPABILITY_GEOFENCING 0x0000020
+/** GPS supports Measurements */
+#define GPS_CAPABILITY_MEASUREMENTS 0x0000040
+/** GPS supports Navigation Messages */
+#define GPS_CAPABILITY_NAV_MESSAGES 0x0000080
+
+/** Flags used to specify which aiding data to delete
+ when calling delete_aiding_data(). */
+typedef uint16_t GpsAidingData;
+// IMPORTANT: Note that the following values must match
+// constants in GpsLocationProvider.java.
+#define GPS_DELETE_EPHEMERIS 0x0001
+#define GPS_DELETE_ALMANAC 0x0002
+#define GPS_DELETE_POSITION 0x0004
+#define GPS_DELETE_TIME 0x0008
+#define GPS_DELETE_IONO 0x0010
+#define GPS_DELETE_UTC 0x0020
+#define GPS_DELETE_HEALTH 0x0040
+#define GPS_DELETE_SVDIR 0x0080
+#define GPS_DELETE_SVSTEER 0x0100
+#define GPS_DELETE_SADATA 0x0200
+#define GPS_DELETE_RTI 0x0400
+#define GPS_DELETE_CELLDB_INFO 0x8000
+#define GPS_DELETE_ALL 0xFFFF
+
+/** AGPS type */
+typedef uint16_t AGpsType;
+#define AGPS_TYPE_SUPL 1
+#define AGPS_TYPE_C2K 2
+
+typedef uint16_t AGpsSetIDType;
+#define AGPS_SETID_TYPE_NONE 0
+#define AGPS_SETID_TYPE_IMSI 1
+#define AGPS_SETID_TYPE_MSISDN 2
+
+typedef uint16_t ApnIpType;
+#define APN_IP_INVALID 0
+#define APN_IP_IPV4 1
+#define APN_IP_IPV6 2
+#define APN_IP_IPV4V6 3
+
+/**
+ * String length constants
+ */
+#define GPS_NI_SHORT_STRING_MAXLEN 256
+#define GPS_NI_LONG_STRING_MAXLEN 2048
+
+/**
+ * GpsNiType constants
+ */
+typedef uint32_t GpsNiType;
+#define GPS_NI_TYPE_VOICE 1
+#define GPS_NI_TYPE_UMTS_SUPL 2
+#define GPS_NI_TYPE_UMTS_CTRL_PLANE 3
+
+/**
+ * GpsNiNotifyFlags constants
+ */
+typedef uint32_t GpsNiNotifyFlags;
+/** NI requires notification */
+#define GPS_NI_NEED_NOTIFY 0x0001
+/** NI requires verification */
+#define GPS_NI_NEED_VERIFY 0x0002
+/** NI requires privacy override, no notification/minimal trace */
+#define GPS_NI_PRIVACY_OVERRIDE 0x0004
+
+/**
+ * GPS NI responses, used to define the response in
+ * NI structures
+ */
+typedef int GpsUserResponseType;
+#define GPS_NI_RESPONSE_ACCEPT 1
+#define GPS_NI_RESPONSE_DENY 2
+#define GPS_NI_RESPONSE_NORESP 3
+
+/**
+ * NI data encoding scheme
+ */
+typedef int GpsNiEncodingType;
+#define GPS_ENC_NONE 0
+#define GPS_ENC_SUPL_GSM_DEFAULT 1
+#define GPS_ENC_SUPL_UTF8 2
+#define GPS_ENC_SUPL_UCS2 3
+#define GPS_ENC_UNKNOWN -1
+
+/** AGPS status event values. */
+typedef uint16_t AGpsStatusValue;
+/** GPS requests data connection for AGPS. */
+#define GPS_REQUEST_AGPS_DATA_CONN 1
+/** GPS releases the AGPS data connection. */
+#define GPS_RELEASE_AGPS_DATA_CONN 2
+/** AGPS data connection initiated */
+#define GPS_AGPS_DATA_CONNECTED 3
+/** AGPS data connection completed */
+#define GPS_AGPS_DATA_CONN_DONE 4
+/** AGPS data connection failed */
+#define GPS_AGPS_DATA_CONN_FAILED 5
+
+#define AGPS_REF_LOCATION_TYPE_GSM_CELLID 1
+#define AGPS_REF_LOCATION_TYPE_UMTS_CELLID 2
+#define AGPS_REG_LOCATION_TYPE_MAC 3
+
+/** Network types for update_network_state "type" parameter */
+#define AGPS_RIL_NETWORK_TYPE_MOBILE 0
+#define AGPS_RIL_NETWORK_TYPE_WIFI 1
+#define AGPS_RIL_NETWORK_TYPE_MOBILE_MMS 2
+#define AGPS_RIL_NETWORK_TYPE_MOBILE_SUPL 3
+#define AGPS_RIL_NETWORK_TTYPE_MOBILE_DUN 4
+#define AGPS_RIL_NETWORK_TTYPE_MOBILE_HIPRI 5
+#define AGPS_RIL_NETWORK_TTYPE_WIMAX 6
+
+/**
+ * Flags to indicate what fields in GpsClock are valid.
+ */
+typedef uint16_t GpsClockFlags;
+/** A valid 'leap second' is stored in the data structure. */
+#define GPS_CLOCK_HAS_LEAP_SECOND (1<<0)
+/** A valid 'time uncertainty' is stored in the data structure. */
+#define GPS_CLOCK_HAS_TIME_UNCERTAINTY (1<<1)
+/** A valid 'full bias' is stored in the data structure. */
+#define GPS_CLOCK_HAS_FULL_BIAS (1<<2)
+/** A valid 'bias' is stored in the data structure. */
+#define GPS_CLOCK_HAS_BIAS (1<<3)
+/** A valid 'bias uncertainty' is stored in the data structure. */
+#define GPS_CLOCK_HAS_BIAS_UNCERTAINTY (1<<4)
+/** A valid 'drift' is stored in the data structure. */
+#define GPS_CLOCK_HAS_DRIFT (1<<5)
+/** A valid 'drift uncertainty' is stored in the data structure. */
+#define GPS_CLOCK_HAS_DRIFT_UNCERTAINTY (1<<6)
+
+/**
+ * Enumeration of the available values for the GPS Clock type.
+ */
+typedef uint8_t GpsClockType;
+/** The type is not available ot it is unknown. */
+#define GPS_CLOCK_TYPE_UNKNOWN 0
+/** The source of the time value reported by GPS clock is the local hardware clock. */
+#define GPS_CLOCK_TYPE_LOCAL_HW_TIME 1
+/**
+ * The source of the time value reported by GPS clock is the GPS time derived from satellites
+ * (epoch = Jan 6, 1980)
+ */
+#define GPS_CLOCK_TYPE_GPS_TIME 2
+
+/**
+ * Flags to indicate what fields in GpsMeasurement are valid.
+ */
+typedef uint32_t GpsMeasurementFlags;
+/** A valid 'snr' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_SNR (1<<0)
+/** A valid 'elevation' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_ELEVATION (1<<1)
+/** A valid 'elevation uncertainty' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_ELEVATION_UNCERTAINTY (1<<2)
+/** A valid 'azimuth' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_AZIMUTH (1<<3)
+/** A valid 'azimuth uncertainty' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_AZIMUTH_UNCERTAINTY (1<<4)
+/** A valid 'pseudorange' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_PSEUDORANGE (1<<5)
+/** A valid 'pseudorange uncertainty' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_PSEUDORANGE_UNCERTAINTY (1<<6)
+/** A valid 'code phase' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_CODE_PHASE (1<<7)
+/** A valid 'code phase uncertainty' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_CODE_PHASE_UNCERTAINTY (1<<8)
+/** A valid 'carrier frequency' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_CARRIER_FREQUENCY (1<<9)
+/** A valid 'carrier cycles' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_CARRIER_CYCLES (1<<10)
+/** A valid 'carrier phase' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_CARRIER_PHASE (1<<11)
+/** A valid 'carrier phase uncertainty' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_CARRIER_PHASE_UNCERTAINTY (1<<12)
+/** A valid 'bit number' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_BIT_NUMBER (1<<13)
+/** A valid 'time from last bit' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_TIME_FROM_LAST_BIT (1<<14)
+/** A valid 'doppler shift' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_DOPPLER_SHIFT (1<<15)
+/** A valid 'doppler shift uncertainty' is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_DOPPLER_SHIFT_UNCERTAINTY (1<<16)
+/** A valid 'used in fix' flag is stored in the data structure. */
+#define GPS_MEASUREMENT_HAS_USED_IN_FIX (1<<17)
+/** The value of 'pseudorange rate' is uncorrected. */
+#define GPS_MEASUREMENT_HAS_UNCORRECTED_PSEUDORANGE_RATE (1<<18)
+
+/**
+ * Enumeration of the available values for the GPS Measurement's loss of lock.
+ */
+typedef uint8_t GpsLossOfLock;
+/** The indicator is not available or it is unknown. */
+#define GPS_LOSS_OF_LOCK_UNKNOWN 0
+/** The measurement does not present any indication of loss of lock. */
+#define GPS_LOSS_OF_LOCK_OK 1
+/** Loss of lock between previous and current observation: cycle slip possible. */
+#define GPS_LOSS_OF_LOCK_CYCLE_SLIP 2
+
+/**
+ * Enumeration of available values for the GPS Measurement's multipath indicator.
+ */
+typedef uint8_t GpsMultipathIndicator;
+/** The indicator is not available or unknown. */
+#define GPS_MULTIPATH_INDICATOR_UNKNOWN 0
+/** The measurement has been indicated to use multipath. */
+#define GPS_MULTIPATH_INDICATOR_DETECTED 1
+/** The measurement has been indicated Not to use multipath. */
+#define GPS_MULTIPATH_INDICATOR_NOT_USED 2
+
+/**
+ * Flags indicating the GPS measurement state.
+ * The expected behavior here is for GPS HAL to set all the flags that applies. For
+ * example, if the state for a satellite is only C/A code locked and bit synchronized,
+ * and there is still millisecond ambiguity, the state should be set as:
+ * GPS_MEASUREMENT_STATE_CODE_LOCK|GPS_MEASUREMENT_STATE_BIT_SYNC|GPS_MEASUREMENT_STATE_MSEC_AMBIGUOUS
+ * If GPS is still searching for a satellite, the corresponding state should be set to
+ * GPS_MEASUREMENT_STATE_UNKNOWN(0).
+ */
+typedef uint16_t GpsMeasurementState;
+#define GPS_MEASUREMENT_STATE_UNKNOWN 0
+#define GPS_MEASUREMENT_STATE_CODE_LOCK (1<<0)
+#define GPS_MEASUREMENT_STATE_BIT_SYNC (1<<1)
+#define GPS_MEASUREMENT_STATE_SUBFRAME_SYNC (1<<2)
+#define GPS_MEASUREMENT_STATE_TOW_DECODED (1<<3)
+#define GPS_MEASUREMENT_STATE_MSEC_AMBIGUOUS (1<<4)
+
+/**
+ * Flags indicating the Accumulated Delta Range's states.
+ */
+typedef uint16_t GpsAccumulatedDeltaRangeState;
+#define GPS_ADR_STATE_UNKNOWN 0
+#define GPS_ADR_STATE_VALID (1<<0)
+#define GPS_ADR_STATE_RESET (1<<1)
+#define GPS_ADR_STATE_CYCLE_SLIP (1<<2)
+
+/**
+ * Enumeration of available values to indicate the available GPS Navigation message types.
+ */
+typedef uint8_t GpsNavigationMessageType;
+/** The message type is unknown. */
+#define GPS_NAVIGATION_MESSAGE_TYPE_UNKNOWN 0
+/** L1 C/A message contained in the structure. */
+#define GPS_NAVIGATION_MESSAGE_TYPE_L1CA 1
+/** L2-CNAV message contained in the structure. */
+#define GPS_NAVIGATION_MESSAGE_TYPE_L2CNAV 2
+/** L5-CNAV message contained in the structure. */
+#define GPS_NAVIGATION_MESSAGE_TYPE_L5CNAV 3
+/** CNAV-2 message contained in the structure. */
+#define GPS_NAVIGATION_MESSAGE_TYPE_CNAV2 4
+
+/**
+ * Status of Navigation Message
+ * When a message is received properly without any parity error in its navigation words, the
+ * status should be set to NAV_MESSAGE_STATUS_PARITY_PASSED. But if a message is received
+ * with words that failed parity check, but GPS is able to correct those words, the status
+ * should be set to NAV_MESSAGE_STATUS_PARITY_REBUILT.
+ * No need to send any navigation message that contains words with parity error and cannot be
+ * corrected.
+ */
+typedef uint16_t NavigationMessageStatus;
+#define NAV_MESSAGE_STATUS_UNKONW 0
+#define NAV_MESSAGE_STATUS_PARITY_PASSED (1<<0)
+#define NAV_MESSAGE_STATUS_PARITY_REBUILT (1<<1)
+
+/**
+ * Name for the GPS XTRA interface.
+ */
+#define GPS_XTRA_INTERFACE "gps-xtra"
+
+/**
+ * Name for the GPS DEBUG interface.
+ */
+#define GPS_DEBUG_INTERFACE "gps-debug"
+
+/**
+ * Name for the AGPS interface.
+ */
+#define AGPS_INTERFACE "agps"
+
+/**
+ * Name of the Supl Certificate interface.
+ */
+#define SUPL_CERTIFICATE_INTERFACE "supl-certificate"
+
+/**
+ * Name for NI interface
+ */
+#define GPS_NI_INTERFACE "gps-ni"
+
+/**
+ * Name for the AGPS-RIL interface.
+ */
+#define AGPS_RIL_INTERFACE "agps_ril"
+
+/**
+ * Name for the GPS_Geofencing interface.
+ */
+#define GPS_GEOFENCING_INTERFACE "gps_geofencing"
+
+/**
+ * Name of the GPS Measurements interface.
+ */
+#define GPS_MEASUREMENT_INTERFACE "gps_measurement"
+
+/**
+ * Name of the GPS navigation message interface.
+ */
+#define GPS_NAVIGATION_MESSAGE_INTERFACE "gps_navigation_message"
+
+/**
+ * Name of the GNSS/GPS configuration interface.
+ */
+#define GNSS_CONFIGURATION_INTERFACE "gnss_configuration"
+
+
+/** Represents a location. */
+typedef struct {
+ /** set to sizeof(GpsLocation) */
+ size_t size;
+ /** Contains GpsLocationFlags bits. */
+ uint16_t flags;
+ /** Represents latitude in degrees. */
+ double latitude;
+ /** Represents longitude in degrees. */
+ double longitude;
+ /** Represents altitude in meters above the WGS 84 reference
+ * ellipsoid. */
+ double altitude;
+ /** Represents speed in meters per second. */
+ float speed;
+ /** Represents heading in degrees. */
+ float bearing;
+ /** Represents expected accuracy in meters. */
+ float accuracy;
+ /** Timestamp for the location fix. */
+ GpsUtcTime timestamp;
+} GpsLocation;
+
+/** Represents the status. */
+typedef struct {
+ /** set to sizeof(GpsStatus) */
+ size_t size;
+ GpsStatusValue status;
+} GpsStatus;
+
+/** Represents SV information. */
+typedef struct {
+ /** set to sizeof(GpsSvInfo) */
+ size_t size;
+ /** Pseudo-random number for the SV. */
+ int prn;
+ /** Signal to noise ratio. */
+ float snr;
+ /** Elevation of SV in degrees. */
+ float elevation;
+ /** Azimuth of SV in degrees. */
+ float azimuth;
+} GpsSvInfo;
+
+/** Represents SV status. */
+typedef struct {
+ /** set to sizeof(GpsSvStatus) */
+ size_t size;
+
+ /** Number of SVs currently visible. */
+ int num_svs;
+
+ /** Contains an array of SV information. */
+ GpsSvInfo sv_list[GPS_MAX_SVS];
+
+ /** Represents a bit mask indicating which SVs
+ * have ephemeris data.
+ */
+ uint32_t ephemeris_mask;
+
+ /** Represents a bit mask indicating which SVs
+ * have almanac data.
+ */
+ uint32_t almanac_mask;
+
+ /**
+ * Represents a bit mask indicating which SVs
+ * were used for computing the most recent position fix.
+ */
+ uint32_t used_in_fix_mask;
+} GpsSvStatus;
+
+
+/* 2G and 3G */
+/* In 3G lac is discarded */
+typedef struct {
+ uint16_t type;
+ uint16_t mcc;
+ uint16_t mnc;
+ uint16_t lac;
+ uint32_t cid;
+} AGpsRefLocationCellID;
+
+typedef struct {
+ uint8_t mac[6];
+} AGpsRefLocationMac;
+
+/** Represents ref locations */
+typedef struct {
+ uint16_t type;
+ union {
+ AGpsRefLocationCellID cellID;
+ AGpsRefLocationMac mac;
+ } u;
+} AGpsRefLocation;
+
+/** Callback with location information.
+ * Can only be called from a thread created by create_thread_cb.
+ */
+typedef void (* gps_location_callback)(GpsLocation* location);
+
+/** Callback with status information.
+ * Can only be called from a thread created by create_thread_cb.
+ */
+typedef void (* gps_status_callback)(GpsStatus* status);
+
+/**
+ * Callback with SV status information.
+ * Can only be called from a thread created by create_thread_cb.
+ */
+typedef void (* gps_sv_status_callback)(GpsSvStatus* sv_info);
+
+/** Callback for reporting NMEA sentences.
+ * Can only be called from a thread created by create_thread_cb.
+ */
+typedef void (* gps_nmea_callback)(GpsUtcTime timestamp, const char* nmea, int length);
+
+/** Callback to inform framework of the GPS engine's capabilities.
+ * Capability parameter is a bit field of GPS_CAPABILITY_* flags.
+ */
+typedef void (* gps_set_capabilities)(uint32_t capabilities);
+
+/** Callback utility for acquiring the GPS wakelock.
+ * This can be used to prevent the CPU from suspending while handling GPS events.
+ */
+typedef void (* gps_acquire_wakelock)();
+
+/** Callback utility for releasing the GPS wakelock. */
+typedef void (* gps_release_wakelock)();
+
+/** Callback for requesting NTP time */
+typedef void (* gps_request_utc_time)();
+
+/** Callback for creating a thread that can call into the Java framework code.
+ * This must be used to create any threads that report events up to the framework.
+ */
+typedef pthread_t (* gps_create_thread)(const char* name, void (*start)(void *), void* arg);
+
+/** GPS callback structure. */
+typedef struct {
+ /** set to sizeof(GpsCallbacks) */
+ size_t size;
+ gps_location_callback location_cb;
+ gps_status_callback status_cb;
+ gps_sv_status_callback sv_status_cb;
+ gps_nmea_callback nmea_cb;
+ gps_set_capabilities set_capabilities_cb;
+ gps_acquire_wakelock acquire_wakelock_cb;
+ gps_release_wakelock release_wakelock_cb;
+ gps_create_thread create_thread_cb;
+ gps_request_utc_time request_utc_time_cb;
+} GpsCallbacks;
+
+
+/** Represents the standard GPS interface. */
+typedef struct {
+ /** set to sizeof(GpsInterface) */
+ size_t size;
+ /**
+ * Opens the interface and provides the callback routines
+ * to the implementation of this interface.
+ */
+ int (*init)( GpsCallbacks* callbacks );
+
+ /** Starts navigating. */
+ int (*start)( void );
+
+ /** Stops navigating. */
+ int (*stop)( void );
+
+ /** Closes the interface. */
+ void (*cleanup)( void );
+
+ /** Injects the current time. */
+ int (*inject_time)(GpsUtcTime time, int64_t timeReference,
+ int uncertainty);
+
+ /** Injects current location from another location provider
+ * (typically cell ID).
+ * latitude and longitude are measured in degrees
+ * expected accuracy is measured in meters
+ */
+ int (*inject_location)(double latitude, double longitude, float accuracy);
+
+ /**
+ * Specifies that the next call to start will not use the
+ * information defined in the flags. GPS_DELETE_ALL is passed for
+ * a cold start.
+ */
+ void (*delete_aiding_data)(GpsAidingData flags);
+
+ /**
+ * min_interval represents the time between fixes in milliseconds.
+ * preferred_accuracy represents the requested fix accuracy in meters.
+ * preferred_time represents the requested time to first fix in milliseconds.
+ *
+ * 'mode' parameter should be one of GPS_POSITION_MODE_MS_BASE
+ * or GPS_POSITION_MODE_STANDALONE.
+ * It is allowed by the platform (and it is recommended) to fallback to
+ * GPS_POSITION_MODE_MS_BASE if GPS_POSITION_MODE_MS_ASSISTED is passed in, and
+ * GPS_POSITION_MODE_MS_BASED is supported.
+ */
+ int (*set_position_mode)(GpsPositionMode mode, GpsPositionRecurrence recurrence,
+ uint32_t min_interval, uint32_t preferred_accuracy, uint32_t preferred_time);
+
+ /** Get a pointer to extension information. */
+ const void* (*get_extension)(const char* name);
+} GpsInterface;
+
+/** Callback to request the client to download XTRA data.
+ * The client should download XTRA data and inject it by calling inject_xtra_data().
+ * Can only be called from a thread created by create_thread_cb.
+ */
+typedef void (* gps_xtra_download_request)();
+
+/** Callback structure for the XTRA interface. */
+typedef struct {
+ gps_xtra_download_request download_request_cb;
+ gps_create_thread create_thread_cb;
+} GpsXtraCallbacks;
+
+/** Extended interface for XTRA support. */
+typedef struct {
+ /** set to sizeof(GpsXtraInterface) */
+ size_t size;
+ /**
+ * Opens the XTRA interface and provides the callback routines
+ * to the implementation of this interface.
+ */
+ int (*init)( GpsXtraCallbacks* callbacks );
+ /** Injects XTRA data into the GPS. */
+ int (*inject_xtra_data)( char* data, int length );
+} GpsXtraInterface;
+
+/** Extended interface for DEBUG support. */
+typedef struct {
+ /** set to sizeof(GpsDebugInterface) */
+ size_t size;
+
+ /**
+ * This function should return any information that the native
+ * implementation wishes to include in a bugreport.
+ */
+ size_t (*get_internal_state)(char* buffer, size_t bufferSize);
+} GpsDebugInterface;
+
+#pragma pack(push,4)
+// We need to keep the alignment of this data structure to 4-bytes, to ensure that in 64-bit
+// environments the size of this legacy definition does not collide with _v2. Implementations should
+// be using _v2 and _v3, so it's OK to pay the 'unaligned' penalty in 64-bit if an old
+// implementation is still in use.
+
+/** Represents the status of AGPS. */
+typedef struct {
+ /** set to sizeof(AGpsStatus_v1) */
+ size_t size;
+
+ AGpsType type;
+ AGpsStatusValue status;
+} AGpsStatus_v1;
+
+#pragma pack(pop)
+
+/** Represents the status of AGPS augmented with a IPv4 address field. */
+typedef struct {
+ /** set to sizeof(AGpsStatus_v2) */
+ size_t size;
+
+ AGpsType type;
+ AGpsStatusValue status;
+ uint32_t ipaddr;
+} AGpsStatus_v2;
+
+/* Represents the status of AGPS augmented to support IPv4 and IPv6. */
+typedef struct {
+ /** set to sizeof(AGpsStatus_v3) */
+ size_t size;
+
+ AGpsType type;
+ AGpsStatusValue status;
+
+ /**
+ * Must be set to a valid IPv4 address if the field 'addr' contains an IPv4
+ * address, or set to INADDR_NONE otherwise.
+ */
+ uint32_t ipaddr;
+
+ /**
+ * Must contain the IPv4 (AF_INET) or IPv6 (AF_INET6) address to report.
+ * Any other value of addr.ss_family will be rejected.
+ * */
+ struct sockaddr_storage addr;
+} AGpsStatus_v3;
+
+typedef AGpsStatus_v3 AGpsStatus;
+
+/** Callback with AGPS status information.
+ * Can only be called from a thread created by create_thread_cb.
+ */
+typedef void (* agps_status_callback)(AGpsStatus* status);
+
+/** Callback structure for the AGPS interface. */
+typedef struct {
+ agps_status_callback status_cb;
+ gps_create_thread create_thread_cb;
+} AGpsCallbacks;
+
+
+/** Extended interface for AGPS support. */
+typedef struct {
+ /** set to sizeof(AGpsInterface_v1) */
+ size_t size;
+
+ /**
+ * Opens the AGPS interface and provides the callback routines
+ * to the implementation of this interface.
+ */
+ void (*init)( AGpsCallbacks* callbacks );
+ /**
+ * Notifies that a data connection is available and sets
+ * the name of the APN to be used for SUPL.
+ */
+ int (*data_conn_open)( const char* apn );
+ /**
+ * Notifies that the AGPS data connection has been closed.
+ */
+ int (*data_conn_closed)();
+ /**
+ * Notifies that a data connection is not available for AGPS.
+ */
+ int (*data_conn_failed)();
+ /**
+ * Sets the hostname and port for the AGPS server.
+ */
+ int (*set_server)( AGpsType type, const char* hostname, int port );
+} AGpsInterface_v1;
+
+/**
+ * Extended interface for AGPS support, it is augmented to enable to pass
+ * extra APN data.
+ */
+typedef struct {
+ /** set to sizeof(AGpsInterface_v2) */
+ size_t size;
+
+ /**
+ * Opens the AGPS interface and provides the callback routines to the
+ * implementation of this interface.
+ */
+ void (*init)(AGpsCallbacks* callbacks);
+ /**
+ * Deprecated.
+ * If the HAL supports AGpsInterface_v2 this API will not be used, see
+ * data_conn_open_with_apn_ip_type for more information.
+ */
+ int (*data_conn_open)(const char* apn);
+ /**
+ * Notifies that the AGPS data connection has been closed.
+ */
+ int (*data_conn_closed)();
+ /**
+ * Notifies that a data connection is not available for AGPS.
+ */
+ int (*data_conn_failed)();
+ /**
+ * Sets the hostname and port for the AGPS server.
+ */
+ int (*set_server)(AGpsType type, const char* hostname, int port);
+
+ /**
+ * Notifies that a data connection is available and sets the name of the
+ * APN, and its IP type, to be used for SUPL connections.
+ */
+ int (*data_conn_open_with_apn_ip_type)(
+ const char* apn,
+ ApnIpType apnIpType);
+} AGpsInterface_v2;
+
+typedef AGpsInterface_v2 AGpsInterface;
+
+/** Error codes associated with certificate operations */
+#define AGPS_CERTIFICATE_OPERATION_SUCCESS 0
+#define AGPS_CERTIFICATE_ERROR_GENERIC -100
+#define AGPS_CERTIFICATE_ERROR_TOO_MANY_CERTIFICATES -101
+
+/** A data structure that represents an X.509 certificate using DER encoding */
+typedef struct {
+ size_t length;
+ u_char* data;
+} DerEncodedCertificate;
+
+/**
+ * A type definition for SHA1 Fingerprints used to identify X.509 Certificates
+ * The Fingerprint is a digest of the DER Certificate that uniquely identifies it.
+ */
+typedef struct {
+ u_char data[20];
+} Sha1CertificateFingerprint;
+
+/** AGPS Interface to handle SUPL certificate operations */
+typedef struct {
+ /** set to sizeof(SuplCertificateInterface) */
+ size_t size;
+
+ /**
+ * Installs a set of Certificates used for SUPL connections to the AGPS server.
+ * If needed the HAL should find out internally any certificates that need to be removed to
+ * accommodate the certificates to install.
+ * The certificates installed represent a full set of valid certificates needed to connect to
+ * AGPS SUPL servers.
+ * The list of certificates is required, and all must be available at the same time, when trying
+ * to establish a connection with the AGPS Server.
+ *
+ * Parameters:
+ * certificates - A pointer to an array of DER encoded certificates that are need to be
+ * installed in the HAL.
+ * length - The number of certificates to install.
+ * Returns:
+ * AGPS_CERTIFICATE_OPERATION_SUCCESS if the operation is completed successfully
+ * AGPS_CERTIFICATE_ERROR_TOO_MANY_CERTIFICATES if the HAL cannot store the number of
+ * certificates attempted to be installed, the state of the certificates stored should
+ * remain the same as before on this error case.
+ *
+ * IMPORTANT:
+ * If needed the HAL should find out internally the set of certificates that need to be
+ * removed to accommodate the certificates to install.
+ */
+ int (*install_certificates) ( const DerEncodedCertificate* certificates, size_t length );
+
+ /**
+ * Notifies the HAL that a list of certificates used for SUPL connections are revoked. It is
+ * expected that the given set of certificates is removed from the internal store of the HAL.
+ *
+ * Parameters:
+ * fingerprints - A pointer to an array of SHA1 Fingerprints to identify the set of
+ * certificates to revoke.
+ * length - The number of fingerprints provided.
+ * Returns:
+ * AGPS_CERTIFICATE_OPERATION_SUCCESS if the operation is completed successfully.
+ *
+ * IMPORTANT:
+ * If any of the certificates provided (through its fingerprint) is not known by the HAL,
+ * it should be ignored and continue revoking/deleting the rest of them.
+ */
+ int (*revoke_certificates) ( const Sha1CertificateFingerprint* fingerprints, size_t length );
+} SuplCertificateInterface;
+
+/** Represents an NI request */
+typedef struct {
+ /** set to sizeof(GpsNiNotification) */
+ size_t size;
+
+ /**
+ * An ID generated by HAL to associate NI notifications and UI
+ * responses
+ */
+ int notification_id;
+
+ /**
+ * An NI type used to distinguish different categories of NI
+ * events, such as GPS_NI_TYPE_VOICE, GPS_NI_TYPE_UMTS_SUPL, ...
+ */
+ GpsNiType ni_type;
+
+ /**
+ * Notification/verification options, combinations of GpsNiNotifyFlags constants
+ */
+ GpsNiNotifyFlags notify_flags;
+
+ /**
+ * Timeout period to wait for user response.
+ * Set to 0 for no time out limit.
+ */
+ int timeout;
+
+ /**
+ * Default response when time out.
+ */
+ GpsUserResponseType default_response;
+
+ /**
+ * Requestor ID
+ */
+ char requestor_id[GPS_NI_SHORT_STRING_MAXLEN];
+
+ /**
+ * Notification message. It can also be used to store client_id in some cases
+ */
+ char text[GPS_NI_LONG_STRING_MAXLEN];
+
+ /**
+ * Client name decoding scheme
+ */
+ GpsNiEncodingType requestor_id_encoding;
+
+ /**
+ * Client name decoding scheme
+ */
+ GpsNiEncodingType text_encoding;
+
+ /**
+ * A pointer to extra data. Format:
+ * key_1 = value_1
+ * key_2 = value_2
+ */
+ char extras[GPS_NI_LONG_STRING_MAXLEN];
+
+} GpsNiNotification;
+
+/** Callback with NI notification.
+ * Can only be called from a thread created by create_thread_cb.
+ */
+typedef void (*gps_ni_notify_callback)(GpsNiNotification *notification);
+
+/** GPS NI callback structure. */
+typedef struct
+{
+ /**
+ * Sends the notification request from HAL to GPSLocationProvider.
+ */
+ gps_ni_notify_callback notify_cb;
+ gps_create_thread create_thread_cb;
+} GpsNiCallbacks;
+
+/**
+ * Extended interface for Network-initiated (NI) support.
+ */
+typedef struct
+{
+ /** set to sizeof(GpsNiInterface) */
+ size_t size;
+
+ /** Registers the callbacks for HAL to use. */
+ void (*init) (GpsNiCallbacks *callbacks);
+
+ /** Sends a response to HAL. */
+ void (*respond) (int notif_id, GpsUserResponseType user_response);
+} GpsNiInterface;
+
+struct gps_device_t {
+ struct hw_device_t common;
+
+ /**
+ * Set the provided lights to the provided values.
+ *
+ * Returns: 0 on succes, error code on failure.
+ */
+ const GpsInterface* (*get_gps_interface)(struct gps_device_t* dev);
+};
+
+#define AGPS_RIL_REQUEST_SETID_IMSI (1<<0L)
+#define AGPS_RIL_REQUEST_SETID_MSISDN (1<<1L)
+
+#define AGPS_RIL_REQUEST_REFLOC_CELLID (1<<0L)
+#define AGPS_RIL_REQUEST_REFLOC_MAC (1<<1L)
+
+typedef void (*agps_ril_request_set_id)(uint32_t flags);
+typedef void (*agps_ril_request_ref_loc)(uint32_t flags);
+
+typedef struct {
+ agps_ril_request_set_id request_setid;
+ agps_ril_request_ref_loc request_refloc;
+ gps_create_thread create_thread_cb;
+} AGpsRilCallbacks;
+
+/** Extended interface for AGPS_RIL support. */
+typedef struct {
+ /** set to sizeof(AGpsRilInterface) */
+ size_t size;
+ /**
+ * Opens the AGPS interface and provides the callback routines
+ * to the implementation of this interface.
+ */
+ void (*init)( AGpsRilCallbacks* callbacks );
+
+ /**
+ * Sets the reference location.
+ */
+ void (*set_ref_location) (const AGpsRefLocation *agps_reflocation, size_t sz_struct);
+ /**
+ * Sets the set ID.
+ */
+ void (*set_set_id) (AGpsSetIDType type, const char* setid);
+
+ /**
+ * Send network initiated message.
+ */
+ void (*ni_message) (uint8_t *msg, size_t len);
+
+ /**
+ * Notify GPS of network status changes.
+ * These parameters match values in the android.net.NetworkInfo class.
+ */
+ void (*update_network_state) (int connected, int type, int roaming, const char* extra_info);
+
+ /**
+ * Notify GPS of network status changes.
+ * These parameters match values in the android.net.NetworkInfo class.
+ */
+ void (*update_network_availability) (int avaiable, const char* apn);
+} AGpsRilInterface;
+
+/**
+ * GPS Geofence.
+ * There are 3 states associated with a Geofence: Inside, Outside, Unknown.
+ * There are 3 transitions: ENTERED, EXITED, UNCERTAIN.
+ *
+ * An example state diagram with confidence level: 95% and Unknown time limit
+ * set as 30 secs is shown below. (confidence level and Unknown time limit are
+ * explained latter)
+ * ____________________________
+ * | Unknown (30 secs) |
+ * """"""""""""""""""""""""""""
+ * ^ | | ^
+ * UNCERTAIN| |ENTERED EXITED| |UNCERTAIN
+ * | v v |
+ * ________ EXITED _________
+ * | Inside | -----------> | Outside |
+ * | | <----------- | |
+ * """""""" ENTERED """""""""
+ *
+ * Inside state: We are 95% confident that the user is inside the geofence.
+ * Outside state: We are 95% confident that the user is outside the geofence
+ * Unknown state: Rest of the time.
+ *
+ * The Unknown state is better explained with an example:
+ *
+ * __________
+ * | c|
+ * | ___ | _______
+ * | |a| | | b |
+ * | """ | """""""
+ * | |
+ * """"""""""
+ * In the diagram above, "a" and "b" are 2 geofences and "c" is the accuracy
+ * circle reported by the GPS subsystem. Now with regard to "b", the system is
+ * confident that the user is outside. But with regard to "a" is not confident
+ * whether it is inside or outside the geofence. If the accuracy remains the
+ * same for a sufficient period of time, the UNCERTAIN transition would be
+ * triggered with the state set to Unknown. If the accuracy improves later, an
+ * appropriate transition should be triggered. This "sufficient period of time"
+ * is defined by the parameter in the add_geofence_area API.
+ * In other words, Unknown state can be interpreted as a state in which the
+ * GPS subsystem isn't confident enough that the user is either inside or
+ * outside the Geofence. It moves to Unknown state only after the expiry of the
+ * timeout.
+ *
+ * The geofence callback needs to be triggered for the ENTERED and EXITED
+ * transitions, when the GPS system is confident that the user has entered
+ * (Inside state) or exited (Outside state) the Geofence. An implementation
+ * which uses a value of 95% as the confidence is recommended. The callback
+ * should be triggered only for the transitions requested by the
+ * add_geofence_area call.
+ *
+ * Even though the diagram and explanation talks about states and transitions,
+ * the callee is only interested in the transistions. The states are mentioned
+ * here for illustrative purposes.
+ *
+ * Startup Scenario: When the device boots up, if an application adds geofences,
+ * and then we get an accurate GPS location fix, it needs to trigger the
+ * appropriate (ENTERED or EXITED) transition for every Geofence it knows about.
+ * By default, all the Geofences will be in the Unknown state.
+ *
+ * When the GPS system is unavailable, gps_geofence_status_callback should be
+ * called to inform the upper layers of the same. Similarly, when it becomes
+ * available the callback should be called. This is a global state while the
+ * UNKNOWN transition described above is per geofence.
+ *
+ * An important aspect to note is that users of this API (framework), will use
+ * other subsystems like wifi, sensors, cell to handle Unknown case and
+ * hopefully provide a definitive state transition to the third party
+ * application. GPS Geofence will just be a signal indicating what the GPS
+ * subsystem knows about the Geofence.
+ *
+ */
+#define GPS_GEOFENCE_ENTERED (1<<0L)
+#define GPS_GEOFENCE_EXITED (1<<1L)
+#define GPS_GEOFENCE_UNCERTAIN (1<<2L)
+
+#define GPS_GEOFENCE_UNAVAILABLE (1<<0L)
+#define GPS_GEOFENCE_AVAILABLE (1<<1L)
+
+#define GPS_GEOFENCE_OPERATION_SUCCESS 0
+#define GPS_GEOFENCE_ERROR_TOO_MANY_GEOFENCES -100
+#define GPS_GEOFENCE_ERROR_ID_EXISTS -101
+#define GPS_GEOFENCE_ERROR_ID_UNKNOWN -102
+#define GPS_GEOFENCE_ERROR_INVALID_TRANSITION -103
+#define GPS_GEOFENCE_ERROR_GENERIC -149
+
+/**
+ * The callback associated with the geofence.
+ * Parameters:
+ * geofence_id - The id associated with the add_geofence_area.
+ * location - The current GPS location.
+ * transition - Can be one of GPS_GEOFENCE_ENTERED, GPS_GEOFENCE_EXITED,
+ * GPS_GEOFENCE_UNCERTAIN.
+ * timestamp - Timestamp when the transition was detected.
+ *
+ * The callback should only be called when the caller is interested in that
+ * particular transition. For instance, if the caller is interested only in
+ * ENTERED transition, then the callback should NOT be called with the EXITED
+ * transition.
+ *
+ * IMPORTANT: If a transition is triggered resulting in this callback, the GPS
+ * subsystem will wake up the application processor, if its in suspend state.
+ */
+typedef void (*gps_geofence_transition_callback) (int32_t geofence_id, GpsLocation* location,
+ int32_t transition, GpsUtcTime timestamp);
+
+/**
+ * The callback associated with the availability of the GPS system for geofencing
+ * monitoring. If the GPS system determines that it cannot monitor geofences
+ * because of lack of reliability or unavailability of the GPS signals, it will
+ * call this callback with GPS_GEOFENCE_UNAVAILABLE parameter.
+ *
+ * Parameters:
+ * status - GPS_GEOFENCE_UNAVAILABLE or GPS_GEOFENCE_AVAILABLE.
+ * last_location - Last known location.
+ */
+typedef void (*gps_geofence_status_callback) (int32_t status, GpsLocation* last_location);
+
+/**
+ * The callback associated with the add_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * status - GPS_GEOFENCE_OPERATION_SUCCESS
+ * GPS_GEOFENCE_ERROR_TOO_MANY_GEOFENCES - geofence limit has been reached.
+ * GPS_GEOFENCE_ERROR_ID_EXISTS - geofence with id already exists
+ * GPS_GEOFENCE_ERROR_INVALID_TRANSITION - the monitorTransition contains an
+ * invalid transition
+ * GPS_GEOFENCE_ERROR_GENERIC - for other errors.
+ */
+typedef void (*gps_geofence_add_callback) (int32_t geofence_id, int32_t status);
+
+/**
+ * The callback associated with the remove_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * status - GPS_GEOFENCE_OPERATION_SUCCESS
+ * GPS_GEOFENCE_ERROR_ID_UNKNOWN - for invalid id
+ * GPS_GEOFENCE_ERROR_GENERIC for others.
+ */
+typedef void (*gps_geofence_remove_callback) (int32_t geofence_id, int32_t status);
+
+
+/**
+ * The callback associated with the pause_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * status - GPS_GEOFENCE_OPERATION_SUCCESS
+ * GPS_GEOFENCE_ERROR_ID_UNKNOWN - for invalid id
+ * GPS_GEOFENCE_ERROR_INVALID_TRANSITION -
+ * when monitor_transitions is invalid
+ * GPS_GEOFENCE_ERROR_GENERIC for others.
+ */
+typedef void (*gps_geofence_pause_callback) (int32_t geofence_id, int32_t status);
+
+/**
+ * The callback associated with the resume_geofence call.
+ *
+ * Parameter:
+ * geofence_id - Id of the geofence.
+ * status - GPS_GEOFENCE_OPERATION_SUCCESS
+ * GPS_GEOFENCE_ERROR_ID_UNKNOWN - for invalid id
+ * GPS_GEOFENCE_ERROR_GENERIC for others.
+ */
+typedef void (*gps_geofence_resume_callback) (int32_t geofence_id, int32_t status);
+
+typedef struct {
+ gps_geofence_transition_callback geofence_transition_callback;
+ gps_geofence_status_callback geofence_status_callback;
+ gps_geofence_add_callback geofence_add_callback;
+ gps_geofence_remove_callback geofence_remove_callback;
+ gps_geofence_pause_callback geofence_pause_callback;
+ gps_geofence_resume_callback geofence_resume_callback;
+ gps_create_thread create_thread_cb;
+} GpsGeofenceCallbacks;
+
+/** Extended interface for GPS_Geofencing support */
+typedef struct {
+ /** set to sizeof(GpsGeofencingInterface) */
+ size_t size;
+
+ /**
+ * Opens the geofence interface and provides the callback routines
+ * to the implementation of this interface.
+ */
+ void (*init)( GpsGeofenceCallbacks* callbacks );
+
+ /**
+ * Add a geofence area. This api currently supports circular geofences.
+ * Parameters:
+ * geofence_id - The id for the geofence. If a geofence with this id
+ * already exists, an error value (GPS_GEOFENCE_ERROR_ID_EXISTS)
+ * should be returned.
+ * latitude, longtitude, radius_meters - The lat, long and radius
+ * (in meters) for the geofence
+ * last_transition - The current state of the geofence. For example, if
+ * the system already knows that the user is inside the geofence,
+ * this will be set to GPS_GEOFENCE_ENTERED. In most cases, it
+ * will be GPS_GEOFENCE_UNCERTAIN.
+ * monitor_transition - Which transitions to monitor. Bitwise OR of
+ * GPS_GEOFENCE_ENTERED, GPS_GEOFENCE_EXITED and
+ * GPS_GEOFENCE_UNCERTAIN.
+ * notification_responsiveness_ms - Defines the best-effort description
+ * of how soon should the callback be called when the transition
+ * associated with the Geofence is triggered. For instance, if set
+ * to 1000 millseconds with GPS_GEOFENCE_ENTERED, the callback
+ * should be called 1000 milliseconds within entering the geofence.
+ * This parameter is defined in milliseconds.
+ * NOTE: This is not to be confused with the rate that the GPS is
+ * polled at. It is acceptable to dynamically vary the rate of
+ * sampling the GPS for power-saving reasons; thus the rate of
+ * sampling may be faster or slower than this.
+ * unknown_timer_ms - The time limit after which the UNCERTAIN transition
+ * should be triggered. This parameter is defined in milliseconds.
+ * See above for a detailed explanation.
+ */
+ void (*add_geofence_area) (int32_t geofence_id, double latitude, double longitude,
+ double radius_meters, int last_transition, int monitor_transitions,
+ int notification_responsiveness_ms, int unknown_timer_ms);
+
+ /**
+ * Pause monitoring a particular geofence.
+ * Parameters:
+ * geofence_id - The id for the geofence.
+ */
+ void (*pause_geofence) (int32_t geofence_id);
+
+ /**
+ * Resume monitoring a particular geofence.
+ * Parameters:
+ * geofence_id - The id for the geofence.
+ * monitor_transitions - Which transitions to monitor. Bitwise OR of
+ * GPS_GEOFENCE_ENTERED, GPS_GEOFENCE_EXITED and
+ * GPS_GEOFENCE_UNCERTAIN.
+ * This supersedes the value associated provided in the
+ * add_geofence_area call.
+ */
+ void (*resume_geofence) (int32_t geofence_id, int monitor_transitions);
+
+ /**
+ * Remove a geofence area. After the function returns, no notifications
+ * should be sent.
+ * Parameter:
+ * geofence_id - The id for the geofence.
+ */
+ void (*remove_geofence_area) (int32_t geofence_id);
+} GpsGeofencingInterface;
+
+
+/**
+ * Represents an estimate of the GPS clock time.
+ */
+typedef struct {
+ /** set to sizeof(GpsClock) */
+ size_t size;
+
+ /** A set of flags indicating the validity of the fields in this data structure. */
+ GpsClockFlags flags;
+
+ /**
+ * Leap second data.
+ * The sign of the value is defined by the following equation:
+ * utc_time_ns = time_ns + (full_bias_ns + bias_ns) - leap_second * 1,000,000,000
+ *
+ * If the data is available 'flags' must contain GPS_CLOCK_HAS_LEAP_SECOND.
+ */
+ int16_t leap_second;
+
+ /**
+ * Indicates the type of time reported by the 'time_ns' field.
+ * This is a Mandatory field.
+ */
+ GpsClockType type;
+
+ /**
+ * The GPS receiver internal clock value. This can be either the local hardware clock value
+ * (GPS_CLOCK_TYPE_LOCAL_HW_TIME), or the current GPS time derived inside GPS receiver
+ * (GPS_CLOCK_TYPE_GPS_TIME). The field 'type' defines the time reported.
+ *
+ * For local hardware clock, this value is expected to be monotonically increasing during
+ * the reporting session. The real GPS time can be derived by compensating the 'full bias'
+ * (when it is available) from this value.
+ *
+ * For GPS time, this value is expected to be the best estimation of current GPS time that GPS
+ * receiver can achieve. Set the 'time uncertainty' appropriately when GPS time is specified.
+ *
+ * Sub-nanosecond accuracy can be provided by means of the 'bias' field.
+ * The value contains the 'time uncertainty' in it.
+ *
+ * This is a Mandatory field.
+ */
+ int64_t time_ns;
+
+ /**
+ * 1-Sigma uncertainty associated with the clock's time in nanoseconds.
+ * The uncertainty is represented as an absolute (single sided) value.
+ *
+ * This value should be set if GPS_CLOCK_TYPE_GPS_TIME is set.
+ * If the data is available 'flags' must contain GPS_CLOCK_HAS_TIME_UNCERTAINTY.
+ */
+ double time_uncertainty_ns;
+
+ /**
+ * The difference between hardware clock ('time' field) inside GPS receiver and the true GPS
+ * time since 0000Z, January 6, 1980, in nanoseconds.
+ * This value is used if and only if GPS_CLOCK_TYPE_LOCAL_HW_TIME is set, and GPS receiver
+ * has solved the clock for GPS time.
+ * The caller is responsible for using the 'bias uncertainty' field for quality check.
+ *
+ * The sign of the value is defined by the following equation:
+ * true time (GPS time) = time_ns + (full_bias_ns + bias_ns)
+ *
+ * This value contains the 'bias uncertainty' in it.
+ * If the data is available 'flags' must contain GPS_CLOCK_HAS_FULL_BIAS.
+
+ */
+ int64_t full_bias_ns;
+
+ /**
+ * Sub-nanosecond bias.
+ * The value contains the 'bias uncertainty' in it.
+ *
+ * If the data is available 'flags' must contain GPS_CLOCK_HAS_BIAS.
+ */
+ double bias_ns;
+
+ /**
+ * 1-Sigma uncertainty associated with the clock's bias in nanoseconds.
+ * The uncertainty is represented as an absolute (single sided) value.
+ *
+ * If the data is available 'flags' must contain GPS_CLOCK_HAS_BIAS_UNCERTAINTY.
+ */
+ double bias_uncertainty_ns;
+
+ /**
+ * The clock's drift in nanoseconds (per second).
+ * A positive value means that the frequency is higher than the nominal frequency.
+ *
+ * The value contains the 'drift uncertainty' in it.
+ * If the data is available 'flags' must contain GPS_CLOCK_HAS_DRIFT.
+ *
+ * If GpsMeasurement's 'flags' field contains GPS_MEASUREMENT_HAS_UNCORRECTED_PSEUDORANGE_RATE,
+ * it is encouraged that this field is also provided.
+ */
+ double drift_nsps;
+
+ /**
+ * 1-Sigma uncertainty associated with the clock's drift in nanoseconds (per second).
+ * The uncertainty is represented as an absolute (single sided) value.
+ *
+ * If the data is available 'flags' must contain GPS_CLOCK_HAS_DRIFT_UNCERTAINTY.
+ */
+ double drift_uncertainty_nsps;
+} GpsClock;
+
+/**
+ * Represents a GPS Measurement, it contains raw and computed information.
+ */
+typedef struct {
+ /** set to sizeof(GpsMeasurement) */
+ size_t size;
+
+ /** A set of flags indicating the validity of the fields in this data structure. */
+ GpsMeasurementFlags flags;
+
+ /**
+ * Pseudo-random number in the range of [1, 32]
+ * This is a Mandatory value.
+ */
+ int8_t prn;
+
+ /**
+ * Time offset at which the measurement was taken in nanoseconds.
+ * The reference receiver's time is specified by GpsData::clock::time_ns and should be
+ * interpreted in the same way as indicated by GpsClock::type.
+ *
+ * The sign of time_offset_ns is given by the following equation:
+ * measurement time = GpsClock::time_ns + time_offset_ns
+ *
+ * It provides an individual time-stamp for the measurement, and allows sub-nanosecond accuracy.
+ * This is a Mandatory value.
+ */
+ double time_offset_ns;
+
+ /**
+ * Per satellite sync state. It represents the current sync state for the associated satellite.
+ * Based on the sync state, the 'received GPS tow' field should be interpreted accordingly.
+ *
+ * This is a Mandatory value.
+ */
+ GpsMeasurementState state;
+
+ /**
+ * Received GPS Time-of-Week at the measurement time, in nanoseconds.
+ * The value is relative to the beginning of the current GPS week.
+ *
+ * Given the highest sync state that can be achieved, per each satellite, valid range for
+ * this field can be:
+ * Searching : [ 0 ] : GPS_MEASUREMENT_STATE_UNKNOWN
+ * C/A code lock : [ 0 1ms ] : GPS_MEASUREMENT_STATE_CODE_LOCK is set
+ * Bit sync : [ 0 20ms ] : GPS_MEASUREMENT_STATE_BIT_SYNC is set
+ * Subframe sync : [ 0 6s ] : GPS_MEASUREMENT_STATE_SUBFRAME_SYNC is set
+ * TOW decoded : [ 0 1week ] : GPS_MEASUREMENT_STATE_TOW_DECODED is set
+ *
+ * However, if there is any ambiguity in integer millisecond,
+ * GPS_MEASUREMENT_STATE_MSEC_AMBIGUOUS should be set accordingly, in the 'state' field.
+ *
+ * This value must be populated if 'state' != GPS_MEASUREMENT_STATE_UNKNOWN.
+ */
+ int64_t received_gps_tow_ns;
+
+ /**
+ * 1-Sigma uncertainty of the Received GPS Time-of-Week in nanoseconds.
+ *
+ * This value must be populated if 'state' != GPS_MEASUREMENT_STATE_UNKNOWN.
+ */
+ int64_t received_gps_tow_uncertainty_ns;
+
+ /**
+ * Carrier-to-noise density in dB-Hz, in the range [0, 63].
+ * It contains the measured C/N0 value for the signal at the antenna input.
+ *
+ * This is a Mandatory value.
+ */
+ double c_n0_dbhz;
+
+ /**
+ * Pseudorange rate at the timestamp in m/s.
+ * The correction of a given Pseudorange Rate value includes corrections for receiver and
+ * satellite clock frequency errors.
+ *
+ * If GPS_MEASUREMENT_HAS_UNCORRECTED_PSEUDORANGE_RATE is set in 'flags' field, this field must
+ * be populated with the 'uncorrected' reading.
+ * If GPS_MEASUREMENT_HAS_UNCORRECTED_PSEUDORANGE_RATE is not set in 'flags' field, this field
+ * must be populated with the 'corrected' reading. This is the default behavior.
+ *
+ * It is encouraged to provide the 'uncorrected' 'pseudorange rate', and provide GpsClock's
+ * 'drift' field as well.
+ *
+ * The value includes the 'pseudorange rate uncertainty' in it.
+ * A positive 'uncorrected' value indicates that the SV is moving away from the receiver.
+ *
+ * The sign of the 'uncorrected' 'pseudorange rate' and its relation to the sign of 'doppler
+ * shift' is given by the equation:
+ * pseudorange rate = -k * doppler shift (where k is a constant)
+ *
+ * This is a Mandatory value.
+ */
+ double pseudorange_rate_mps;
+
+ /**
+ * 1-Sigma uncertainty of the pseudurange rate in m/s.
+ * The uncertainty is represented as an absolute (single sided) value.
+ *
+ * This is a Mandatory value.
+ */
+ double pseudorange_rate_uncertainty_mps;
+
+ /**
+ * Accumulated delta range's state. It indicates whether ADR is reset or there is a cycle slip
+ * (indicating loss of lock).
+ *
+ * This is a Mandatory value.
+ */
+ GpsAccumulatedDeltaRangeState accumulated_delta_range_state;
+
+ /**
+ * Accumulated delta range since the last channel reset in meters.
+ * A positive value indicates that the SV is moving away from the receiver.
+ *
+ * The sign of the 'accumulated delta range' and its relation to the sign of 'carrier phase'
+ * is given by the equation:
+ * accumulated delta range = -k * carrier phase (where k is a constant)
+ *
+ * This value must be populated if 'accumulated delta range state' != GPS_ADR_STATE_UNKNOWN.
+ * However, it is expected that the data is only accurate when:
+ * 'accumulated delta range state' == GPS_ADR_STATE_VALID.
+ */
+ double accumulated_delta_range_m;
+
+ /**
+ * 1-Sigma uncertainty of the accumulated delta range in meters.
+ * This value must be populated if 'accumulated delta range state' != GPS_ADR_STATE_UNKNOWN.
+ */
+ double accumulated_delta_range_uncertainty_m;
+
+ /**
+ * Best derived Pseudorange by the chip-set, in meters.
+ * The value contains the 'pseudorange uncertainty' in it.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_PSEUDORANGE.
+ */
+ double pseudorange_m;
+
+ /**
+ * 1-Sigma uncertainty of the pseudorange in meters.
+ * The value contains the 'pseudorange' and 'clock' uncertainty in it.
+ * The uncertainty is represented as an absolute (single sided) value.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_PSEUDORANGE_UNCERTAINTY.
+ */
+ double pseudorange_uncertainty_m;
+
+ /**
+ * A fraction of the current C/A code cycle, in the range [0.0, 1023.0]
+ * This value contains the time (in Chip units) since the last C/A code cycle (GPS Msec epoch).
+ *
+ * The reference frequency is given by the field 'carrier_frequency_hz'.
+ * The value contains the 'code-phase uncertainty' in it.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CODE_PHASE.
+ */
+ double code_phase_chips;
+
+ /**
+ * 1-Sigma uncertainty of the code-phase, in a fraction of chips.
+ * The uncertainty is represented as an absolute (single sided) value.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CODE_PHASE_UNCERTAINTY.
+ */
+ double code_phase_uncertainty_chips;
+
+ /**
+ * Carrier frequency at which codes and messages are modulated, it can be L1 or L2.
+ * If the field is not set, the carrier frequency is assumed to be L1.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_FREQUENCY.
+ */
+ float carrier_frequency_hz;
+
+ /**
+ * The number of full carrier cycles between the satellite and the receiver.
+ * The reference frequency is given by the field 'carrier_frequency_hz'.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_CYCLES.
+ */
+ int64_t carrier_cycles;
+
+ /**
+ * The RF phase detected by the receiver, in the range [0.0, 1.0].
+ * This is usually the fractional part of the complete carrier phase measurement.
+ *
+ * The reference frequency is given by the field 'carrier_frequency_hz'.
+ * The value contains the 'carrier-phase uncertainty' in it.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_PHASE.
+ */
+ double carrier_phase;
+
+ /**
+ * 1-Sigma uncertainty of the carrier-phase.
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_CARRIER_PHASE_UNCERTAINTY.
+ */
+ double carrier_phase_uncertainty;
+
+ /**
+ * An enumeration that indicates the 'loss of lock' state of the event.
+ */
+ GpsLossOfLock loss_of_lock;
+
+ /**
+ * The number of GPS bits transmitted since Sat-Sun midnight (GPS week).
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_BIT_NUMBER.
+ */
+ int32_t bit_number;
+
+ /**
+ * The elapsed time since the last received bit in milliseconds, in the range [0, 20]
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_TIME_FROM_LAST_BIT.
+ */
+ int16_t time_from_last_bit_ms;
+
+ /**
+ * Doppler shift in Hz.
+ * A positive value indicates that the SV is moving toward the receiver.
+ *
+ * The reference frequency is given by the field 'carrier_frequency_hz'.
+ * The value contains the 'doppler shift uncertainty' in it.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_DOPPLER_SHIFT.
+ */
+ double doppler_shift_hz;
+
+ /**
+ * 1-Sigma uncertainty of the doppler shift in Hz.
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_DOPPLER_SHIFT_UNCERTAINTY.
+ */
+ double doppler_shift_uncertainty_hz;
+
+ /**
+ * An enumeration that indicates the 'multipath' state of the event.
+ */
+ GpsMultipathIndicator multipath_indicator;
+
+ /**
+ * Signal-to-noise ratio in dB.
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_SNR.
+ */
+ double snr_db;
+
+ /**
+ * Elevation in degrees, the valid range is [-90, 90].
+ * The value contains the 'elevation uncertainty' in it.
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_ELEVATION.
+ */
+ double elevation_deg;
+
+ /**
+ * 1-Sigma uncertainty of the elevation in degrees, the valid range is [0, 90].
+ * The uncertainty is represented as the absolute (single sided) value.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_ELEVATION_UNCERTAINTY.
+ */
+ double elevation_uncertainty_deg;
+
+ /**
+ * Azimuth in degrees, in the range [0, 360).
+ * The value contains the 'azimuth uncertainty' in it.
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_AZIMUTH.
+ * */
+ double azimuth_deg;
+
+ /**
+ * 1-Sigma uncertainty of the azimuth in degrees, the valid range is [0, 180].
+ * The uncertainty is represented as an absolute (single sided) value.
+ *
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_AZIMUTH_UNCERTAINTY.
+ */
+ double azimuth_uncertainty_deg;
+
+ /**
+ * Whether the GPS represented by the measurement was used for computing the most recent fix.
+ * If the data is available, 'flags' must contain GPS_MEASUREMENT_HAS_USED_IN_FIX.
+ */
+ bool used_in_fix;
+} GpsMeasurement;
+
+/** Represents a reading of GPS measurements. */
+typedef struct {
+ /** set to sizeof(GpsData) */
+ size_t size;
+
+ /** Number of measurements. */
+ size_t measurement_count;
+
+ /** The array of measurements. */
+ GpsMeasurement measurements[GPS_MAX_MEASUREMENT];
+
+ /** The GPS clock time reading. */
+ GpsClock clock;
+} GpsData;
+
+/**
+ * The callback for to report measurements from the HAL.
+ *
+ * Parameters:
+ * data - A data structure containing the measurements.
+ */
+typedef void (*gps_measurement_callback) (GpsData* data);
+
+typedef struct {
+ /** set to sizeof(GpsMeasurementCallbacks) */
+ size_t size;
+ gps_measurement_callback measurement_callback;
+} GpsMeasurementCallbacks;
+
+#define GPS_MEASUREMENT_OPERATION_SUCCESS 0
+#define GPS_MEASUREMENT_ERROR_ALREADY_INIT -100
+#define GPS_MEASUREMENT_ERROR_GENERIC -101
+
+/**
+ * Extended interface for GPS Measurements support.
+ */
+typedef struct {
+ /** Set to sizeof(GpsMeasurementInterface) */
+ size_t size;
+
+ /**
+ * Initializes the interface and registers the callback routines with the HAL.
+ * After a successful call to 'init' the HAL must begin to provide updates at its own phase.
+ *
+ * Status:
+ * GPS_MEASUREMENT_OPERATION_SUCCESS
+ * GPS_MEASUREMENT_ERROR_ALREADY_INIT - if a callback has already been registered without a
+ * corresponding call to 'close'
+ * GPS_MEASUREMENT_ERROR_GENERIC - if any other error occurred, it is expected that the HAL
+ * will not generate any updates upon returning this error code.
+ */
+ int (*init) (GpsMeasurementCallbacks* callbacks);
+
+ /**
+ * Stops updates from the HAL, and unregisters the callback routines.
+ * After a call to stop, the previously registered callbacks must be considered invalid by the
+ * HAL.
+ * If stop is invoked without a previous 'init', this function should perform no work.
+ */
+ void (*close) ();
+
+} GpsMeasurementInterface;
+
+
+/** Represents a GPS navigation message (or a fragment of it). */
+typedef struct {
+ /** set to sizeof(GpsNavigationMessage) */
+ size_t size;
+
+ /**
+ * Pseudo-random number in the range of [1, 32]
+ * This is a Mandatory value.
+ */
+ int8_t prn;
+
+ /**
+ * The type of message contained in the structure.
+ * This is a Mandatory value.
+ */
+ GpsNavigationMessageType type;
+
+ /**
+ * The status of the received navigation message.
+ * No need to send any navigation message that contains words with parity error and cannot be
+ * corrected.
+ */
+ NavigationMessageStatus status;
+
+ /**
+ * Message identifier.
+ * It provides an index so the complete Navigation Message can be assembled. i.e. fo L1 C/A
+ * subframe 4 and 5, this value corresponds to the 'frame id' of the navigation message.
+ * Subframe 1, 2, 3 does not contain a 'frame id' and this value can be set to -1.
+ */
+ int16_t message_id;
+
+ /**
+ * Sub-message identifier.
+ * If required by the message 'type', this value contains a sub-index within the current
+ * message (or frame) that is being transmitted.
+ * i.e. for L1 C/A the submessage id corresponds to the sub-frame id of the navigation message.
+ */
+ int16_t submessage_id;
+
+ /**
+ * The length of the data (in bytes) contained in the current message.
+ * If this value is different from zero, 'data' must point to an array of the same size.
+ * e.g. for L1 C/A the size of the sub-frame will be 40 bytes (10 words, 30 bits/word).
+ *
+ * This is a Mandatory value.
+ */
+ size_t data_length;
+
+ /**
+ * The data of the reported GPS message.
+ * The bytes (or words) specified using big endian format (MSB first).
+ *
+ * For L1 C/A, each subframe contains 10 30-bit GPS words. Each GPS word (30 bits) should be
+ * fitted into the last 30 bits in a 4-byte word (skip B31 and B32), with MSB first.
+ */
+ uint8_t* data;
+
+} GpsNavigationMessage;
+
+/**
+ * The callback to report an available fragment of a GPS navigation messages from the HAL.
+ *
+ * Parameters:
+ * message - The GPS navigation submessage/subframe representation.
+ */
+typedef void (*gps_navigation_message_callback) (GpsNavigationMessage* message);
+
+typedef struct {
+ /** set to sizeof(GpsNavigationMessageCallbacks) */
+ size_t size;
+ gps_navigation_message_callback navigation_message_callback;
+} GpsNavigationMessageCallbacks;
+
+#define GPS_NAVIGATION_MESSAGE_OPERATION_SUCCESS 0
+#define GPS_NAVIGATION_MESSAGE_ERROR_ALREADY_INIT -100
+#define GPS_NAVIGATION_MESSAGE_ERROR_GENERIC -101
+
+/**
+ * Extended interface for GPS navigation message reporting support.
+ */
+typedef struct {
+ /** Set to sizeof(GpsNavigationMessageInterface) */
+ size_t size;
+
+ /**
+ * Initializes the interface and registers the callback routines with the HAL.
+ * After a successful call to 'init' the HAL must begin to provide updates as they become
+ * available.
+ *
+ * Status:
+ * GPS_NAVIGATION_MESSAGE_OPERATION_SUCCESS
+ * GPS_NAVIGATION_MESSAGE_ERROR_ALREADY_INIT - if a callback has already been registered
+ * without a corresponding call to 'close'.
+ * GPS_NAVIGATION_MESSAGE_ERROR_GENERIC - if any other error occurred, it is expected that
+ * the HAL will not generate any updates upon returning this error code.
+ */
+ int (*init) (GpsNavigationMessageCallbacks* callbacks);
+
+ /**
+ * Stops updates from the HAL, and unregisters the callback routines.
+ * After a call to stop, the previously registered callbacks must be considered invalid by the
+ * HAL.
+ * If stop is invoked without a previous 'init', this function should perform no work.
+ */
+ void (*close) ();
+
+} GpsNavigationMessageInterface;
+
+/**
+ * Interface for passing GNSS configuration contents from platform to HAL.
+ */
+typedef struct {
+ /** Set to sizeof(GnssConfigurationInterface) */
+ size_t size;
+
+ /**
+ * Deliver GNSS configuration contents to HAL.
+ * Parameters:
+ * config_data - a pointer to a char array which holds what usually is expected from
+ file(/etc/gps.conf), i.e., a sequence of UTF8 strings separated by '\n'.
+ * length - total number of UTF8 characters in configuraiton data.
+ *
+ * IMPORTANT:
+ * GPS HAL should expect this function can be called multiple times. And it may be
+ * called even when GpsLocationProvider is already constructed and enabled. GPS HAL
+ * should maintain the existing requests for various callback regardless the change
+ * in configuration data.
+ */
+ void (*configuration_update) (const char* config_data, int32_t length);
+} GnssConfigurationInterface;
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_HARDWARE_GPS_H */
+
diff --git a/libhardware/include/hardware/gralloc.h b/libhardware/include/hardware/gralloc.h
new file mode 100644
index 0000000..ef86f90
--- /dev/null
+++ b/libhardware/include/hardware/gralloc.h
@@ -0,0 +1,384 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_GRALLOC_INTERFACE_H
+#define ANDROID_GRALLOC_INTERFACE_H
+
+#include <system/window.h>
+#include <system/graphics.h>
+#include <hardware/hardware.h>
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <cutils/native_handle.h>
+
+#include <hardware/hardware.h>
+#include <hardware/fb.h>
+
+__BEGIN_DECLS
+
+/**
+ * Module versioning information for the Gralloc hardware module, based on
+ * gralloc_module_t.common.module_api_version.
+ *
+ * Version History:
+ *
+ * GRALLOC_MODULE_API_VERSION_0_1:
+ * Initial Gralloc hardware module API.
+ *
+ * GRALLOC_MODULE_API_VERSION_0_2:
+ * Add support for flexible YCbCr format with (*lock_ycbcr)() method.
+ *
+ * GRALLOC_MODULE_API_VERSION_0_3:
+ * Add support for fence passing to/from lock/unlock.
+ */
+
+#define GRALLOC_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+#define GRALLOC_MODULE_API_VERSION_0_2 HARDWARE_MODULE_API_VERSION(0, 2)
+#define GRALLOC_MODULE_API_VERSION_0_3 HARDWARE_MODULE_API_VERSION(0, 3)
+
+#define GRALLOC_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION(0, 1)
+
+/**
+ * The id of this module
+ */
+#define GRALLOC_HARDWARE_MODULE_ID "gralloc"
+
+/**
+ * Name of the graphics device to open
+ */
+
+#define GRALLOC_HARDWARE_GPU0 "gpu0"
+
+enum {
+ /* buffer is never read in software */
+ GRALLOC_USAGE_SW_READ_NEVER = 0x00000000,
+ /* buffer is rarely read in software */
+ GRALLOC_USAGE_SW_READ_RARELY = 0x00000002,
+ /* buffer is often read in software */
+ GRALLOC_USAGE_SW_READ_OFTEN = 0x00000003,
+ /* mask for the software read values */
+ GRALLOC_USAGE_SW_READ_MASK = 0x0000000F,
+
+ /* buffer is never written in software */
+ GRALLOC_USAGE_SW_WRITE_NEVER = 0x00000000,
+ /* buffer is rarely written in software */
+ GRALLOC_USAGE_SW_WRITE_RARELY = 0x00000020,
+ /* buffer is often written in software */
+ GRALLOC_USAGE_SW_WRITE_OFTEN = 0x00000030,
+ /* mask for the software write values */
+ GRALLOC_USAGE_SW_WRITE_MASK = 0x000000F0,
+
+ /* buffer will be used as an OpenGL ES texture */
+ GRALLOC_USAGE_HW_TEXTURE = 0x00000100,
+ /* buffer will be used as an OpenGL ES render target */
+ GRALLOC_USAGE_HW_RENDER = 0x00000200,
+ /* buffer will be used by the 2D hardware blitter */
+ GRALLOC_USAGE_HW_2D = 0x00000400,
+ /* buffer will be used by the HWComposer HAL module */
+ GRALLOC_USAGE_HW_COMPOSER = 0x00000800,
+ /* buffer will be used with the framebuffer device */
+ GRALLOC_USAGE_HW_FB = 0x00001000,
+
+ /* buffer should be displayed full-screen on an external display when
+ * possible */
+ GRALLOC_USAGE_EXTERNAL_DISP = 0x00002000,
+
+ /* Must have a hardware-protected path to external display sink for
+ * this buffer. If a hardware-protected path is not available, then
+ * either don't composite only this buffer (preferred) to the
+ * external sink, or (less desirable) do not route the entire
+ * composition to the external sink. */
+ GRALLOC_USAGE_PROTECTED = 0x00004000,
+
+ /* buffer may be used as a cursor */
+ GRALLOC_USAGE_CURSOR = 0x00008000,
+
+ /* buffer will be used with the HW video encoder */
+ GRALLOC_USAGE_HW_VIDEO_ENCODER = 0x00010000,
+ /* buffer will be written by the HW camera pipeline */
+ GRALLOC_USAGE_HW_CAMERA_WRITE = 0x00020000,
+ /* buffer will be read by the HW camera pipeline */
+ GRALLOC_USAGE_HW_CAMERA_READ = 0x00040000,
+ /* buffer will be used as part of zero-shutter-lag queue */
+ GRALLOC_USAGE_HW_CAMERA_ZSL = 0x00060000,
+ /* mask for the camera access values */
+ GRALLOC_USAGE_HW_CAMERA_MASK = 0x00060000,
+ /* mask for the software usage bit-mask */
+ GRALLOC_USAGE_HW_MASK = 0x00071F00,
+
+ /* buffer will be used as a RenderScript Allocation */
+ GRALLOC_USAGE_RENDERSCRIPT = 0x00100000,
+
+ /* Set by the consumer to indicate to the producer that they may attach a
+ * buffer that they did not detach from the BufferQueue. Will be filtered
+ * out by GRALLOC_USAGE_ALLOC_MASK, so gralloc modules will not need to
+ * handle this flag. */
+ GRALLOC_USAGE_FOREIGN_BUFFERS = 0x00200000,
+
+ /* Mask of all flags which could be passed to a gralloc module for buffer
+ * allocation. Any flags not in this mask do not need to be handled by
+ * gralloc modules. */
+ GRALLOC_USAGE_ALLOC_MASK = ~(GRALLOC_USAGE_FOREIGN_BUFFERS),
+
+ /* implementation-specific private usage flags */
+ GRALLOC_USAGE_PRIVATE_0 = 0x10000000,
+ GRALLOC_USAGE_PRIVATE_1 = 0x20000000,
+ GRALLOC_USAGE_PRIVATE_2 = 0x40000000,
+ GRALLOC_USAGE_PRIVATE_3 = 0x80000000,
+ GRALLOC_USAGE_PRIVATE_MASK = 0xF0000000,
+};
+
+/*****************************************************************************/
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+typedef struct gralloc_module_t {
+ struct hw_module_t common;
+
+ /*
+ * (*registerBuffer)() must be called before a buffer_handle_t that has not
+ * been created with (*alloc_device_t::alloc)() can be used.
+ *
+ * This is intended to be used with buffer_handle_t's that have been
+ * received in this process through IPC.
+ *
+ * This function checks that the handle is indeed a valid one and prepares
+ * it for use with (*lock)() and (*unlock)().
+ *
+ * It is not necessary to call (*registerBuffer)() on a handle created
+ * with (*alloc_device_t::alloc)().
+ *
+ * returns an error if this buffer_handle_t is not valid.
+ */
+ int (*registerBuffer)(struct gralloc_module_t const* module,
+ buffer_handle_t handle);
+
+ /*
+ * (*unregisterBuffer)() is called once this handle is no longer needed in
+ * this process. After this call, it is an error to call (*lock)(),
+ * (*unlock)(), or (*registerBuffer)().
+ *
+ * This function doesn't close or free the handle itself; this is done
+ * by other means, usually through libcutils's native_handle_close() and
+ * native_handle_free().
+ *
+ * It is an error to call (*unregisterBuffer)() on a buffer that wasn't
+ * explicitly registered first.
+ */
+ int (*unregisterBuffer)(struct gralloc_module_t const* module,
+ buffer_handle_t handle);
+
+ /*
+ * The (*lock)() method is called before a buffer is accessed for the
+ * specified usage. This call may block, for instance if the h/w needs
+ * to finish rendering or if CPU caches need to be synchronized.
+ *
+ * The caller promises to modify only pixels in the area specified
+ * by (l,t,w,h).
+ *
+ * The content of the buffer outside of the specified area is NOT modified
+ * by this call.
+ *
+ * If usage specifies GRALLOC_USAGE_SW_*, vaddr is filled with the address
+ * of the buffer in virtual memory.
+ *
+ * Note calling (*lock)() on HAL_PIXEL_FORMAT_YCbCr_*_888 buffers will fail
+ * and return -EINVAL. These buffers must be locked with (*lock_ycbcr)()
+ * instead.
+ *
+ * THREADING CONSIDERATIONS:
+ *
+ * It is legal for several different threads to lock a buffer from
+ * read access, none of the threads are blocked.
+ *
+ * However, locking a buffer simultaneously for write or read/write is
+ * undefined, but:
+ * - shall not result in termination of the process
+ * - shall not block the caller
+ * It is acceptable to return an error or to leave the buffer's content
+ * into an indeterminate state.
+ *
+ * If the buffer was created with a usage mask incompatible with the
+ * requested usage flags here, -EINVAL is returned.
+ *
+ */
+
+ int (*lock)(struct gralloc_module_t const* module,
+ buffer_handle_t handle, int usage,
+ int l, int t, int w, int h,
+ void** vaddr);
+
+
+ /*
+ * The (*unlock)() method must be called after all changes to the buffer
+ * are completed.
+ */
+
+ int (*unlock)(struct gralloc_module_t const* module,
+ buffer_handle_t handle);
+
+
+ /* reserved for future use */
+ int (*perform)(struct gralloc_module_t const* module,
+ int operation, ... );
+
+ /*
+ * The (*lock_ycbcr)() method is like the (*lock)() method, with the
+ * difference that it fills a struct ycbcr with a description of the buffer
+ * layout, and zeroes out the reserved fields.
+ *
+ * If the buffer format is not compatible with a flexible YUV format (e.g.
+ * the buffer layout cannot be represented with the ycbcr struct), it
+ * will return -EINVAL.
+ *
+ * This method must work on buffers with HAL_PIXEL_FORMAT_YCbCr_*_888
+ * if supported by the device, as well as with any other format that is
+ * requested by the multimedia codecs when they are configured with a
+ * flexible-YUV-compatible color-format with android native buffers.
+ *
+ * Note that this method may also be called on buffers of other formats,
+ * including non-YUV formats.
+ *
+ * Added in GRALLOC_MODULE_API_VERSION_0_2.
+ */
+
+ int (*lock_ycbcr)(struct gralloc_module_t const* module,
+ buffer_handle_t handle, int usage,
+ int l, int t, int w, int h,
+ struct android_ycbcr *ycbcr);
+
+ /*
+ * The (*lockAsync)() method is like the (*lock)() method except
+ * that the buffer's sync fence object is passed into the lock
+ * call instead of requiring the caller to wait for completion.
+ *
+ * The gralloc implementation takes ownership of the fenceFd and
+ * is responsible for closing it when no longer needed.
+ *
+ * Added in GRALLOC_MODULE_API_VERSION_0_3.
+ */
+ int (*lockAsync)(struct gralloc_module_t const* module,
+ buffer_handle_t handle, int usage,
+ int l, int t, int w, int h,
+ void** vaddr, int fenceFd);
+
+ /*
+ * The (*unlockAsync)() method is like the (*unlock)() method
+ * except that a buffer sync fence object is returned from the
+ * lock call, representing the completion of any pending work
+ * performed by the gralloc implementation.
+ *
+ * The caller takes ownership of the fenceFd and is responsible
+ * for closing it when no longer needed.
+ *
+ * Added in GRALLOC_MODULE_API_VERSION_0_3.
+ */
+ int (*unlockAsync)(struct gralloc_module_t const* module,
+ buffer_handle_t handle, int* fenceFd);
+
+ /*
+ * The (*lockAsync_ycbcr)() method is like the (*lock_ycbcr)()
+ * method except that the buffer's sync fence object is passed
+ * into the lock call instead of requiring the caller to wait for
+ * completion.
+ *
+ * The gralloc implementation takes ownership of the fenceFd and
+ * is responsible for closing it when no longer needed.
+ *
+ * Added in GRALLOC_MODULE_API_VERSION_0_3.
+ */
+ int (*lockAsync_ycbcr)(struct gralloc_module_t const* module,
+ buffer_handle_t handle, int usage,
+ int l, int t, int w, int h,
+ struct android_ycbcr *ycbcr, int fenceFd);
+
+ /* reserved for future use */
+ void* reserved_proc[3];
+} gralloc_module_t;
+
+/*****************************************************************************/
+
+/**
+ * Every device data structure must begin with hw_device_t
+ * followed by module specific public methods and attributes.
+ */
+
+typedef struct alloc_device_t {
+ struct hw_device_t common;
+
+ /*
+ * (*alloc)() Allocates a buffer in graphic memory with the requested
+ * parameters and returns a buffer_handle_t and the stride in pixels to
+ * allow the implementation to satisfy hardware constraints on the width
+ * of a pixmap (eg: it may have to be multiple of 8 pixels).
+ * The CALLER TAKES OWNERSHIP of the buffer_handle_t.
+ *
+ * If format is HAL_PIXEL_FORMAT_YCbCr_420_888, the returned stride must be
+ * 0, since the actual strides are available from the android_ycbcr
+ * structure.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+
+ int (*alloc)(struct alloc_device_t* dev,
+ int w, int h, int format, int usage,
+ buffer_handle_t* handle, int* stride);
+
+ /*
+ * (*free)() Frees a previously allocated buffer.
+ * Behavior is undefined if the buffer is still mapped in any process,
+ * but shall not result in termination of the program or security breaches
+ * (allowing a process to get access to another process' buffers).
+ * THIS FUNCTION TAKES OWNERSHIP of the buffer_handle_t which becomes
+ * invalid after the call.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*free)(struct alloc_device_t* dev,
+ buffer_handle_t handle);
+
+ /* This hook is OPTIONAL.
+ *
+ * If non NULL it will be caused by SurfaceFlinger on dumpsys
+ */
+ void (*dump)(struct alloc_device_t *dev, char *buff, int buff_len);
+
+ void* reserved_proc[7];
+} alloc_device_t;
+
+
+/** convenience API for opening and closing a supported device */
+
+static inline int gralloc_open(const struct hw_module_t* module,
+ struct alloc_device_t** device) {
+ return module->methods->open(module,
+ GRALLOC_HARDWARE_GPU0, (struct hw_device_t**)device);
+}
+
+static inline int gralloc_close(struct alloc_device_t* device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_GRALLOC_INTERFACE_H
diff --git a/libhardware/include/hardware/hardware.h b/libhardware/include/hardware/hardware.h
new file mode 100644
index 0000000..74f57aa
--- /dev/null
+++ b/libhardware/include/hardware/hardware.h
@@ -0,0 +1,238 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_HARDWARE_H
+#define ANDROID_INCLUDE_HARDWARE_HARDWARE_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+
+#include <cutils/native_handle.h>
+#include <system/graphics.h>
+
+__BEGIN_DECLS
+
+/*
+ * Value for the hw_module_t.tag field
+ */
+
+#define MAKE_TAG_CONSTANT(A,B,C,D) (((A) << 24) | ((B) << 16) | ((C) << 8) | (D))
+
+#define HARDWARE_MODULE_TAG MAKE_TAG_CONSTANT('H', 'W', 'M', 'T')
+#define HARDWARE_DEVICE_TAG MAKE_TAG_CONSTANT('H', 'W', 'D', 'T')
+
+#define HARDWARE_MAKE_API_VERSION(maj,min) \
+ ((((maj) & 0xff) << 8) | ((min) & 0xff))
+
+#define HARDWARE_MAKE_API_VERSION_2(maj,min,hdr) \
+ ((((maj) & 0xff) << 24) | (((min) & 0xff) << 16) | ((hdr) & 0xffff))
+#define HARDWARE_API_VERSION_2_MAJ_MIN_MASK 0xffff0000
+#define HARDWARE_API_VERSION_2_HEADER_MASK 0x0000ffff
+
+
+/*
+ * The current HAL API version.
+ *
+ * All module implementations must set the hw_module_t.hal_api_version field
+ * to this value when declaring the module with HAL_MODULE_INFO_SYM.
+ *
+ * Note that previous implementations have always set this field to 0.
+ * Therefore, libhardware HAL API will always consider versions 0.0 and 1.0
+ * to be 100% binary compatible.
+ *
+ */
+#define HARDWARE_HAL_API_VERSION HARDWARE_MAKE_API_VERSION(1, 0)
+
+/*
+ * Helper macros for module implementors.
+ *
+ * The derived modules should provide convenience macros for supported
+ * versions so that implementations can explicitly specify module/device
+ * versions at definition time.
+ *
+ * Use this macro to set the hw_module_t.module_api_version field.
+ */
+#define HARDWARE_MODULE_API_VERSION(maj,min) HARDWARE_MAKE_API_VERSION(maj,min)
+#define HARDWARE_MODULE_API_VERSION_2(maj,min,hdr) HARDWARE_MAKE_API_VERSION_2(maj,min,hdr)
+
+/*
+ * Use this macro to set the hw_device_t.version field
+ */
+#define HARDWARE_DEVICE_API_VERSION(maj,min) HARDWARE_MAKE_API_VERSION(maj,min)
+#define HARDWARE_DEVICE_API_VERSION_2(maj,min,hdr) HARDWARE_MAKE_API_VERSION_2(maj,min,hdr)
+
+struct hw_module_t;
+struct hw_module_methods_t;
+struct hw_device_t;
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+typedef struct hw_module_t {
+ /** tag must be initialized to HARDWARE_MODULE_TAG */
+ uint32_t tag;
+
+ /**
+ * The API version of the implemented module. The module owner is
+ * responsible for updating the version when a module interface has
+ * changed.
+ *
+ * The derived modules such as gralloc and audio own and manage this field.
+ * The module user must interpret the version field to decide whether or
+ * not to inter-operate with the supplied module implementation.
+ * For example, SurfaceFlinger is responsible for making sure that
+ * it knows how to manage different versions of the gralloc-module API,
+ * and AudioFlinger must know how to do the same for audio-module API.
+ *
+ * The module API version should include a major and a minor component.
+ * For example, version 1.0 could be represented as 0x0100. This format
+ * implies that versions 0x0100-0x01ff are all API-compatible.
+ *
+ * In the future, libhardware will expose a hw_get_module_version()
+ * (or equivalent) function that will take minimum/maximum supported
+ * versions as arguments and would be able to reject modules with
+ * versions outside of the supplied range.
+ */
+ uint16_t module_api_version;
+#define version_major module_api_version
+ /**
+ * version_major/version_minor defines are supplied here for temporary
+ * source code compatibility. They will be removed in the next version.
+ * ALL clients must convert to the new version format.
+ */
+
+ /**
+ * The API version of the HAL module interface. This is meant to
+ * version the hw_module_t, hw_module_methods_t, and hw_device_t
+ * structures and definitions.
+ *
+ * The HAL interface owns this field. Module users/implementations
+ * must NOT rely on this value for version information.
+ *
+ * Presently, 0 is the only valid value.
+ */
+ uint16_t hal_api_version;
+#define version_minor hal_api_version
+
+ /** Identifier of module */
+ const char *id;
+
+ /** Name of this module */
+ const char *name;
+
+ /** Author/owner/implementor of the module */
+ const char *author;
+
+ /** Modules methods */
+ struct hw_module_methods_t* methods;
+
+ /** module's dso */
+ void* dso;
+
+#ifdef __LP64__
+ uint64_t reserved[32-7];
+#else
+ /** padding to 128 bytes, reserved for future use */
+ uint32_t reserved[32-7];
+#endif
+
+} hw_module_t;
+
+typedef struct hw_module_methods_t {
+ /** Open a specific device */
+ int (*open)(const struct hw_module_t* module, const char* id,
+ struct hw_device_t** device);
+
+} hw_module_methods_t;
+
+/**
+ * Every device data structure must begin with hw_device_t
+ * followed by module specific public methods and attributes.
+ */
+typedef struct hw_device_t {
+ /** tag must be initialized to HARDWARE_DEVICE_TAG */
+ uint32_t tag;
+
+ /**
+ * Version of the module-specific device API. This value is used by
+ * the derived-module user to manage different device implementations.
+ *
+ * The module user is responsible for checking the module_api_version
+ * and device version fields to ensure that the user is capable of
+ * communicating with the specific module implementation.
+ *
+ * One module can support multiple devices with different versions. This
+ * can be useful when a device interface changes in an incompatible way
+ * but it is still necessary to support older implementations at the same
+ * time. One such example is the Camera 2.0 API.
+ *
+ * This field is interpreted by the module user and is ignored by the
+ * HAL interface itself.
+ */
+ uint32_t version;
+
+ /** reference to the module this device belongs to */
+ struct hw_module_t* module;
+
+ /** padding reserved for future use */
+#ifdef __LP64__
+ uint64_t reserved[12];
+#else
+ uint32_t reserved[12];
+#endif
+
+ /** Close this device */
+ int (*close)(struct hw_device_t* device);
+
+} hw_device_t;
+
+/**
+ * Name of the hal_module_info
+ */
+#define HAL_MODULE_INFO_SYM HMI
+
+/**
+ * Name of the hal_module_info as a string
+ */
+#define HAL_MODULE_INFO_SYM_AS_STR "HMI"
+
+/**
+ * Get the module info associated with a module by id.
+ *
+ * @return: 0 == success, <0 == error and *module == NULL
+ */
+int hw_get_module(const char *id, const struct hw_module_t **module);
+
+/**
+ * Get the module info associated with a module instance by class 'class_id'
+ * and instance 'inst'.
+ *
+ * Some modules types necessitate multiple instances. For example audio supports
+ * multiple concurrent interfaces and thus 'audio' is the module class
+ * and 'primary' or 'a2dp' are module interfaces. This implies that the files
+ * providing these modules would be named audio.primary.<variant>.so and
+ * audio.a2dp.<variant>.so
+ *
+ * @return: 0 == success, <0 == error and *module == NULL
+ */
+int hw_get_module_by_class(const char *class_id, const char *inst,
+ const struct hw_module_t **module);
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_HARDWARE_HARDWARE_H */
diff --git a/libhardware/include/hardware/hdmi_cec.h b/libhardware/include/hardware/hdmi_cec.h
new file mode 100644
index 0000000..ab70f92
--- /dev/null
+++ b/libhardware/include/hardware/hdmi_cec.h
@@ -0,0 +1,429 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_HDMI_CEC_H
+#define ANDROID_INCLUDE_HARDWARE_HDMI_CEC_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define HDMI_CEC_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define HDMI_CEC_MODULE_API_VERSION_CURRENT HDMI_MODULE_API_VERSION_1_0
+
+#define HDMI_CEC_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION(1, 0)
+#define HDMI_CEC_DEVICE_API_VERSION_CURRENT HDMI_DEVICE_API_VERSION_1_0
+
+#define HDMI_CEC_HARDWARE_MODULE_ID "hdmi_cec"
+#define HDMI_CEC_HARDWARE_INTERFACE "hdmi_cec_hw_if"
+
+typedef enum cec_device_type {
+ CEC_DEVICE_INACTIVE = -1,
+ CEC_DEVICE_TV = 0,
+ CEC_DEVICE_RECORDER = 1,
+ CEC_DEVICE_RESERVED = 2,
+ CEC_DEVICE_TUNER = 3,
+ CEC_DEVICE_PLAYBACK = 4,
+ CEC_DEVICE_AUDIO_SYSTEM = 5,
+ CEC_DEVICE_MAX = CEC_DEVICE_AUDIO_SYSTEM
+} cec_device_type_t;
+
+typedef enum cec_logical_address {
+ CEC_ADDR_TV = 0,
+ CEC_ADDR_RECORDER_1 = 1,
+ CEC_ADDR_RECORDER_2 = 2,
+ CEC_ADDR_TUNER_1 = 3,
+ CEC_ADDR_PLAYBACK_1 = 4,
+ CEC_ADDR_AUDIO_SYSTEM = 5,
+ CEC_ADDR_TUNER_2 = 6,
+ CEC_ADDR_TUNER_3 = 7,
+ CEC_ADDR_PLAYBACK_2 = 8,
+ CEC_ADDR_RECORDER_3 = 9,
+ CEC_ADDR_TUNER_4 = 10,
+ CEC_ADDR_PLAYBACK_3 = 11,
+ CEC_ADDR_RESERVED_1 = 12,
+ CEC_ADDR_RESERVED_2 = 13,
+ CEC_ADDR_FREE_USE = 14,
+ CEC_ADDR_UNREGISTERED = 15,
+ CEC_ADDR_BROADCAST = 15
+} cec_logical_address_t;
+
+/*
+ * HDMI CEC messages
+ */
+enum cec_message_type {
+ CEC_MESSAGE_FEATURE_ABORT = 0x00,
+ CEC_MESSAGE_IMAGE_VIEW_ON = 0x04,
+ CEC_MESSAGE_TUNER_STEP_INCREMENT = 0x05,
+ CEC_MESSAGE_TUNER_STEP_DECREMENT = 0x06,
+ CEC_MESSAGE_TUNER_DEVICE_STATUS = 0x07,
+ CEC_MESSAGE_GIVE_TUNER_DEVICE_STATUS = 0x08,
+ CEC_MESSAGE_RECORD_ON = 0x09,
+ CEC_MESSAGE_RECORD_STATUS = 0x0A,
+ CEC_MESSAGE_RECORD_OFF = 0x0B,
+ CEC_MESSAGE_TEXT_VIEW_ON = 0x0D,
+ CEC_MESSAGE_RECORD_TV_SCREEN = 0x0F,
+ CEC_MESSAGE_GIVE_DECK_STATUS = 0x1A,
+ CEC_MESSAGE_DECK_STATUS = 0x1B,
+ CEC_MESSAGE_SET_MENU_LANGUAGE = 0x32,
+ CEC_MESSAGE_CLEAR_ANALOG_TIMER = 0x33,
+ CEC_MESSAGE_SET_ANALOG_TIMER = 0x34,
+ CEC_MESSAGE_TIMER_STATUS = 0x35,
+ CEC_MESSAGE_STANDBY = 0x36,
+ CEC_MESSAGE_PLAY = 0x41,
+ CEC_MESSAGE_DECK_CONTROL = 0x42,
+ CEC_MESSAGE_TIMER_CLEARED_STATUS = 0x043,
+ CEC_MESSAGE_USER_CONTROL_PRESSED = 0x44,
+ CEC_MESSAGE_USER_CONTROL_RELEASED = 0x45,
+ CEC_MESSAGE_GIVE_OSD_NAME = 0x46,
+ CEC_MESSAGE_SET_OSD_NAME = 0x47,
+ CEC_MESSAGE_SET_OSD_STRING = 0x64,
+ CEC_MESSAGE_SET_TIMER_PROGRAM_TITLE = 0x67,
+ CEC_MESSAGE_SYSTEM_AUDIO_MODE_REQUEST = 0x70,
+ CEC_MESSAGE_GIVE_AUDIO_STATUS = 0x71,
+ CEC_MESSAGE_SET_SYSTEM_AUDIO_MODE = 0x72,
+ CEC_MESSAGE_REPORT_AUDIO_STATUS = 0x7A,
+ CEC_MESSAGE_GIVE_SYSTEM_AUDIO_MODE_STATUS = 0x7D,
+ CEC_MESSAGE_SYSTEM_AUDIO_MODE_STATUS = 0x7E,
+ CEC_MESSAGE_ROUTING_CHANGE = 0x80,
+ CEC_MESSAGE_ROUTING_INFORMATION = 0x81,
+ CEC_MESSAGE_ACTIVE_SOURCE = 0x82,
+ CEC_MESSAGE_GIVE_PHYSICAL_ADDRESS = 0x83,
+ CEC_MESSAGE_REPORT_PHYSICAL_ADDRESS = 0x84,
+ CEC_MESSAGE_REQUEST_ACTIVE_SOURCE = 0x85,
+ CEC_MESSAGE_SET_STREAM_PATH = 0x86,
+ CEC_MESSAGE_DEVICE_VENDOR_ID = 0x87,
+ CEC_MESSAGE_VENDOR_COMMAND = 0x89,
+ CEC_MESSAGE_VENDOR_REMOTE_BUTTON_DOWN = 0x8A,
+ CEC_MESSAGE_VENDOR_REMOTE_BUTTON_UP = 0x8B,
+ CEC_MESSAGE_GIVE_DEVICE_VENDOR_ID = 0x8C,
+ CEC_MESSAGE_MENU_REQUEST = 0x8D,
+ CEC_MESSAGE_MENU_STATUS = 0x8E,
+ CEC_MESSAGE_GIVE_DEVICE_POWER_STATUS = 0x8F,
+ CEC_MESSAGE_REPORT_POWER_STATUS = 0x90,
+ CEC_MESSAGE_GET_MENU_LANGUAGE = 0x91,
+ CEC_MESSAGE_SELECT_ANALOG_SERVICE = 0x92,
+ CEC_MESSAGE_SELECT_DIGITAL_SERVICE = 0x93,
+ CEC_MESSAGE_SET_DIGITAL_TIMER = 0x97,
+ CEC_MESSAGE_CLEAR_DIGITAL_TIMER = 0x99,
+ CEC_MESSAGE_SET_AUDIO_RATE = 0x9A,
+ CEC_MESSAGE_INACTIVE_SOURCE = 0x9D,
+ CEC_MESSAGE_CEC_VERSION = 0x9E,
+ CEC_MESSAGE_GET_CEC_VERSION = 0x9F,
+ CEC_MESSAGE_VENDOR_COMMAND_WITH_ID = 0xA0,
+ CEC_MESSAGE_CLEAR_EXTERNAL_TIMER = 0xA1,
+ CEC_MESSAGE_SET_EXTERNAL_TIMER = 0xA2,
+ CEC_MESSAGE_INITIATE_ARC = 0xC0,
+ CEC_MESSAGE_REPORT_ARC_INITIATED = 0xC1,
+ CEC_MESSAGE_REPORT_ARC_TERMINATED = 0xC2,
+ CEC_MESSAGE_REQUEST_ARC_INITIATION = 0xC3,
+ CEC_MESSAGE_REQUEST_ARC_TERMINATION = 0xC4,
+ CEC_MESSAGE_TERMINATE_ARC = 0xC5,
+ CEC_MESSAGE_ABORT = 0xFF
+};
+
+/*
+ * Operand description [Abort Reason]
+ */
+enum abort_reason {
+ ABORT_UNRECOGNIZED_MODE = 0,
+ ABORT_NOT_IN_CORRECT_MODE = 1,
+ ABORT_CANNOT_PROVIDE_SOURCE = 2,
+ ABORT_INVALID_OPERAND = 3,
+ ABORT_REFUSED = 4,
+ ABORT_UNABLE_TO_DETERMINE = 5
+};
+
+/*
+ * HDMI event type. used for hdmi_event_t.
+ */
+enum {
+ HDMI_EVENT_CEC_MESSAGE = 1,
+ HDMI_EVENT_HOT_PLUG = 2,
+};
+
+/*
+ * HDMI hotplug event type. Used when the event
+ * type is HDMI_EVENT_HOT_PLUG.
+ */
+enum {
+ HDMI_NOT_CONNECTED = 0,
+ HDMI_CONNECTED = 1
+};
+
+/*
+ * error code used for send_message.
+ */
+enum {
+ HDMI_RESULT_SUCCESS = 0,
+ HDMI_RESULT_NACK = 1, /* not acknowledged */
+ HDMI_RESULT_BUSY = 2, /* bus is busy */
+ HDMI_RESULT_FAIL = 3,
+};
+
+/*
+ * HDMI port type.
+ */
+typedef enum hdmi_port_type {
+ HDMI_INPUT = 0,
+ HDMI_OUTPUT = 1
+} hdmi_port_type_t;
+
+/*
+ * Flags used for set_option()
+ */
+enum {
+ /* When set to false, HAL does not wake up the system upon receiving
+ * <Image View On> or <Text View On>. Used when user changes the TV
+ * settings to disable the auto TV on functionality.
+ * True by default.
+ */
+ HDMI_OPTION_WAKEUP = 1,
+
+ /* When set to false, all the CEC commands are discarded. Used when
+ * user changes the TV settings to disable CEC functionality.
+ * True by default.
+ */
+ HDMI_OPTION_ENABLE_CEC = 2,
+
+ /* Setting this flag to false means Android system will stop handling
+ * CEC service and yield the control over to the microprocessor that is
+ * powered on through the standby mode. When set to true, the system
+ * will gain the control over, hence telling the microprocessor to stop
+ * handling the cec commands. This is called when system goes
+ * in and out of standby mode to notify the microprocessor that it should
+ * start/stop handling CEC commands on behalf of the system.
+ * False by default.
+ */
+ HDMI_OPTION_SYSTEM_CEC_CONTROL = 3,
+
+ /* Option 4 not used */
+
+ /* Passes the updated language information of Android system.
+ * Contains 3-byte ASCII code as defined in ISO/FDIS 639-2. Can be
+ * used for HAL to respond to <Get Menu Language> while in standby mode.
+ * English(eng), for example, is converted to 0x656e67.
+ */
+ HDMI_OPTION_SET_LANG = 5,
+};
+
+/*
+ * Maximum length in bytes of cec message body (exclude header block),
+ * should not exceed 16 (spec CEC 6 Frame Description)
+ */
+#define CEC_MESSAGE_BODY_MAX_LENGTH 16
+
+typedef struct cec_message {
+ /* logical address of sender */
+ cec_logical_address_t initiator;
+
+ /* logical address of receiver */
+ cec_logical_address_t destination;
+
+ /* Length in bytes of body, range [0, CEC_MESSAGE_BODY_MAX_LENGTH] */
+ size_t length;
+ unsigned char body[CEC_MESSAGE_BODY_MAX_LENGTH];
+} cec_message_t;
+
+typedef struct hotplug_event {
+ /*
+ * true if the cable is connected; otherwise false.
+ */
+ int connected;
+ int port_id;
+} hotplug_event_t;
+
+typedef struct tx_status_event {
+ int status;
+ int opcode; /* CEC opcode */
+} tx_status_event_t;
+
+/*
+ * HDMI event generated from HAL.
+ */
+typedef struct hdmi_event {
+ int type;
+ struct hdmi_cec_device* dev;
+ union {
+ cec_message_t cec;
+ hotplug_event_t hotplug;
+ };
+} hdmi_event_t;
+
+/*
+ * HDMI port descriptor
+ */
+typedef struct hdmi_port_info {
+ hdmi_port_type_t type;
+ // Port ID should start from 1 which corresponds to HDMI "port 1".
+ int port_id;
+ int cec_supported;
+ int arc_supported;
+ uint16_t physical_address;
+} hdmi_port_info_t;
+
+/*
+ * Callback function type that will be called by HAL implementation.
+ * Services can not close/open the device in the callback.
+ */
+typedef void (*event_callback_t)(const hdmi_event_t* event, void* arg);
+
+typedef struct hdmi_cec_module {
+ /**
+ * Common methods of the HDMI CEC module. This *must* be the first member of
+ * hdmi_cec_module as users of this structure will cast a hw_module_t to hdmi_cec_module
+ * pointer in contexts where it's known the hw_module_t references a hdmi_cec_module.
+ */
+ struct hw_module_t common;
+} hdmi_module_t;
+
+/*
+ * HDMI-CEC HAL interface definition.
+ */
+typedef struct hdmi_cec_device {
+ /**
+ * Common methods of the HDMI CEC device. This *must* be the first member of
+ * hdmi_cec_device as users of this structure will cast a hw_device_t to hdmi_cec_device
+ * pointer in contexts where it's known the hw_device_t references a hdmi_cec_device.
+ */
+ struct hw_device_t common;
+
+ /*
+ * (*add_logical_address)() passes the logical address that will be used
+ * in this system.
+ *
+ * HAL may use it to configure the hardware so that the CEC commands addressed
+ * the given logical address can be filtered in. This method can be called
+ * as many times as necessary in order to support multiple logical devices.
+ * addr should be in the range of valid logical addresses for the call
+ * to succeed.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*add_logical_address)(const struct hdmi_cec_device* dev, cec_logical_address_t addr);
+
+ /*
+ * (*clear_logical_address)() tells HAL to reset all the logical addresses.
+ *
+ * It is used when the system doesn't need to process CEC command any more,
+ * hence to tell HAL to stop receiving commands from the CEC bus, and change
+ * the state back to the beginning.
+ */
+ void (*clear_logical_address)(const struct hdmi_cec_device* dev);
+
+ /*
+ * (*get_physical_address)() returns the CEC physical address. The
+ * address is written to addr.
+ *
+ * The physical address depends on the topology of the network formed
+ * by connected HDMI devices. It is therefore likely to change if the cable
+ * is plugged off and on again. It is advised to call get_physical_address
+ * to get the updated address when hot plug event takes place.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*get_physical_address)(const struct hdmi_cec_device* dev, uint16_t* addr);
+
+ /*
+ * (*send_message)() transmits HDMI-CEC message to other HDMI device.
+ *
+ * The method should be designed to return in a certain amount of time not
+ * hanging forever, which can happen if CEC signal line is pulled low for
+ * some reason. HAL implementation should take the situation into account
+ * so as not to wait forever for the message to get sent out.
+ *
+ * It should try retransmission at least once as specified in the standard.
+ *
+ * Returns error code. See HDMI_RESULT_SUCCESS, HDMI_RESULT_NACK, and
+ * HDMI_RESULT_BUSY.
+ */
+ int (*send_message)(const struct hdmi_cec_device* dev, const cec_message_t*);
+
+ /*
+ * (*register_event_callback)() registers a callback that HDMI-CEC HAL
+ * can later use for incoming CEC messages or internal HDMI events.
+ * When calling from C++, use the argument arg to pass the calling object.
+ * It will be passed back when the callback is invoked so that the context
+ * can be retrieved.
+ */
+ void (*register_event_callback)(const struct hdmi_cec_device* dev,
+ event_callback_t callback, void* arg);
+
+ /*
+ * (*get_version)() returns the CEC version supported by underlying hardware.
+ */
+ void (*get_version)(const struct hdmi_cec_device* dev, int* version);
+
+ /*
+ * (*get_vendor_id)() returns the identifier of the vendor. It is
+ * the 24-bit unique company ID obtained from the IEEE Registration
+ * Authority Committee (RAC).
+ */
+ void (*get_vendor_id)(const struct hdmi_cec_device* dev, uint32_t* vendor_id);
+
+ /*
+ * (*get_port_info)() returns the hdmi port information of underlying hardware.
+ * info is the list of HDMI port information, and 'total' is the number of
+ * HDMI ports in the system.
+ */
+ void (*get_port_info)(const struct hdmi_cec_device* dev,
+ struct hdmi_port_info* list[], int* total);
+
+ /*
+ * (*set_option)() passes flags controlling the way HDMI-CEC service works down
+ * to HAL implementation. Those flags will be used in case the feature needs
+ * update in HAL itself, firmware or microcontroller.
+ */
+ void (*set_option)(const struct hdmi_cec_device* dev, int flag, int value);
+
+ /*
+ * (*set_audio_return_channel)() configures ARC circuit in the hardware logic
+ * to start or stop the feature. Flag can be either 1 to start the feature
+ * or 0 to stop it.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ void (*set_audio_return_channel)(const struct hdmi_cec_device* dev, int port_id, int flag);
+
+ /*
+ * (*is_connected)() returns the connection status of the specified port.
+ * Returns HDMI_CONNECTED if a device is connected, otherwise HDMI_NOT_CONNECTED.
+ * The HAL should watch for +5V power signal to determine the status.
+ */
+ int (*is_connected)(const struct hdmi_cec_device* dev, int port_id);
+
+ /* Reserved for future use to maximum 16 functions. Must be NULL. */
+ void* reserved[16 - 11];
+} hdmi_cec_device_t;
+
+/** convenience API for opening and closing a device */
+
+static inline int hdmi_cec_open(const struct hw_module_t* module,
+ struct hdmi_cec_device** device) {
+ return module->methods->open(module,
+ HDMI_CEC_HARDWARE_INTERFACE, (struct hw_device_t**)device);
+}
+
+static inline int hdmi_cec_close(struct hdmi_cec_device* device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_HARDWARE_HDMI_CEC_H */
diff --git a/libhardware/include/hardware/hw_auth_token.h b/libhardware/include/hardware/hw_auth_token.h
new file mode 100644
index 0000000..f471d1a
--- /dev/null
+++ b/libhardware/include/hardware/hw_auth_token.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#ifndef ANDROID_HARDWARE_HW_AUTH_TOKEN_H
+#define ANDROID_HARDWARE_HW_AUTH_TOKEN_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+const uint8_t HW_AUTH_TOKEN_VERSION = 0;
+
+typedef enum {
+ HW_AUTH_NONE = 0,
+ HW_AUTH_PASSWORD = 1 << 0,
+ HW_AUTH_FINGERPRINT = 1 << 1,
+ // Additional entries should be powers of 2.
+ HW_AUTH_ANY = UINT32_MAX,
+} hw_authenticator_type_t;
+
+/**
+ * Data format for an authentication record used to prove successful authentication.
+ */
+typedef struct __attribute__((__packed__)) {
+ uint8_t version; // Current version is 0
+ uint64_t challenge;
+ uint64_t user_id; // secure user ID, not Android user ID
+ uint64_t authenticator_id; // secure authenticator ID
+ uint32_t authenticator_type; // hw_authenticator_type_t, in network order
+ uint64_t timestamp; // in network order
+ uint8_t hmac[32];
+} hw_auth_token_t;
+
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
+
+#endif // ANDROID_HARDWARE_HW_AUTH_TOKEN_H
diff --git a/libhardware/include/hardware/hwcomposer.h b/libhardware/include/hardware/hwcomposer.h
new file mode 100644
index 0000000..aa466b3
--- /dev/null
+++ b/libhardware/include/hardware/hwcomposer.h
@@ -0,0 +1,833 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_H
+#define ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+
+#include <hardware/gralloc.h>
+#include <hardware/hardware.h>
+#include <cutils/native_handle.h>
+
+#include <hardware/hwcomposer_defs.h>
+
+__BEGIN_DECLS
+
+/*****************************************************************************/
+
+/* for compatibility */
+#define HWC_MODULE_API_VERSION HWC_MODULE_API_VERSION_0_1
+#define HWC_DEVICE_API_VERSION HWC_DEVICE_API_VERSION_0_1
+#define HWC_API_VERSION HWC_DEVICE_API_VERSION
+
+/*****************************************************************************/
+
+/**
+ * The id of this module
+ */
+#define HWC_HARDWARE_MODULE_ID "hwcomposer"
+
+/**
+ * Name of the sensors device to open
+ */
+#define HWC_HARDWARE_COMPOSER "composer"
+
+typedef struct hwc_rect {
+ int left;
+ int top;
+ int right;
+ int bottom;
+} hwc_rect_t;
+
+typedef struct hwc_frect {
+ float left;
+ float top;
+ float right;
+ float bottom;
+} hwc_frect_t;
+
+typedef struct hwc_region {
+ size_t numRects;
+ hwc_rect_t const* rects;
+} hwc_region_t;
+
+typedef struct hwc_color {
+ uint8_t r;
+ uint8_t g;
+ uint8_t b;
+ uint8_t a;
+} hwc_color_t;
+
+typedef struct hwc_layer_1 {
+ /*
+ * compositionType is used to specify this layer's type and is set by either
+ * the hardware composer implementation, or by the caller (see below).
+ *
+ * This field is always reset to HWC_BACKGROUND or HWC_FRAMEBUFFER
+ * before (*prepare)() is called when the HWC_GEOMETRY_CHANGED flag is
+ * also set, otherwise, this field is preserved between (*prepare)()
+ * calls.
+ *
+ * HWC_BACKGROUND
+ * Always set by the caller before calling (*prepare)(), this value
+ * indicates this is a special "background" layer. The only valid field
+ * is backgroundColor.
+ * The HWC can toggle this value to HWC_FRAMEBUFFER to indicate it CANNOT
+ * handle the background color.
+ *
+ *
+ * HWC_FRAMEBUFFER_TARGET
+ * Always set by the caller before calling (*prepare)(), this value
+ * indicates this layer is the framebuffer surface used as the target of
+ * OpenGL ES composition. If the HWC sets all other layers to HWC_OVERLAY
+ * or HWC_BACKGROUND, then no OpenGL ES composition will be done, and
+ * this layer should be ignored during set().
+ *
+ * This flag (and the framebuffer surface layer) will only be used if the
+ * HWC version is HWC_DEVICE_API_VERSION_1_1 or higher. In older versions,
+ * the OpenGL ES target surface is communicated by the (dpy, sur) fields
+ * in hwc_compositor_device_1_t.
+ *
+ * This value cannot be set by the HWC implementation.
+ *
+ *
+ * HWC_FRAMEBUFFER
+ * Set by the caller before calling (*prepare)() ONLY when the
+ * HWC_GEOMETRY_CHANGED flag is also set.
+ *
+ * Set by the HWC implementation during (*prepare)(), this indicates
+ * that the layer will be drawn into the framebuffer using OpenGL ES.
+ * The HWC can toggle this value to HWC_OVERLAY to indicate it will
+ * handle the layer.
+ *
+ *
+ * HWC_OVERLAY
+ * Set by the HWC implementation during (*prepare)(), this indicates
+ * that the layer will be handled by the HWC (ie: it must not be
+ * composited with OpenGL ES).
+ *
+ *
+ * HWC_SIDEBAND
+ * Set by the caller before calling (*prepare)(), this value indicates
+ * the contents of this layer come from a sideband video stream.
+ *
+ * The h/w composer is responsible for receiving new image buffers from
+ * the stream at the appropriate time (e.g. synchronized to a separate
+ * audio stream), compositing them with the current contents of other
+ * layers, and displaying the resulting image. This happens
+ * independently of the normal prepare/set cycle. The prepare/set calls
+ * only happen when other layers change, or when properties of the
+ * sideband layer such as position or size change.
+ *
+ * If the h/w composer can't handle the layer as a sideband stream for
+ * some reason (e.g. unsupported scaling/blending/rotation, or too many
+ * sideband layers) it can set compositionType to HWC_FRAMEBUFFER in
+ * (*prepare)(). However, doing so will result in the layer being shown
+ * as a solid color since the platform is not currently able to composite
+ * sideband layers with the GPU. This may be improved in future
+ * versions of the platform.
+ *
+ *
+ * HWC_CURSOR_OVERLAY
+ * Set by the HWC implementation during (*prepare)(), this value
+ * indicates the layer's composition will now be handled by the HWC.
+ * Additionally, the client can now asynchronously update the on-screen
+ * position of this layer using the setCursorPositionAsync() api.
+ */
+ int32_t compositionType;
+
+ /*
+ * hints is bit mask set by the HWC implementation during (*prepare)().
+ * It is preserved between (*prepare)() calls, unless the
+ * HWC_GEOMETRY_CHANGED flag is set, in which case it is reset to 0.
+ *
+ * see hwc_layer_t::hints
+ */
+ uint32_t hints;
+
+ /* see hwc_layer_t::flags */
+ uint32_t flags;
+
+ union {
+ /* color of the background. hwc_color_t.a is ignored */
+ hwc_color_t backgroundColor;
+
+ struct {
+ union {
+ /* When compositionType is HWC_FRAMEBUFFER, HWC_OVERLAY,
+ * HWC_FRAMEBUFFER_TARGET, this is the handle of the buffer to
+ * compose. This handle is guaranteed to have been allocated
+ * from gralloc using the GRALLOC_USAGE_HW_COMPOSER usage flag.
+ * If the layer's handle is unchanged across two consecutive
+ * prepare calls and the HWC_GEOMETRY_CHANGED flag is not set
+ * for the second call then the HWComposer implementation may
+ * assume that the contents of the buffer have not changed. */
+ buffer_handle_t handle;
+
+ /* When compositionType is HWC_SIDEBAND, this is the handle
+ * of the sideband video stream to compose. */
+ const native_handle_t* sidebandStream;
+ };
+
+ /* transformation to apply to the buffer during composition */
+ uint32_t transform;
+
+ /* blending to apply during composition */
+ int32_t blending;
+
+ /* area of the source to consider, the origin is the top-left corner of
+ * the buffer. As of HWC_DEVICE_API_VERSION_1_3, sourceRect uses floats.
+ * If the h/w can't support a non-integer source crop rectangle, it should
+ * punt to OpenGL ES composition.
+ */
+ union {
+ // crop rectangle in integer (pre HWC_DEVICE_API_VERSION_1_3)
+ hwc_rect_t sourceCropi;
+ hwc_rect_t sourceCrop; // just for source compatibility
+ // crop rectangle in floats (as of HWC_DEVICE_API_VERSION_1_3)
+ hwc_frect_t sourceCropf;
+ };
+
+ /* where to composite the sourceCrop onto the display. The sourceCrop
+ * is scaled using linear filtering to the displayFrame. The origin is the
+ * top-left corner of the screen.
+ */
+ hwc_rect_t displayFrame;
+
+ /* visible region in screen space. The origin is the
+ * top-left corner of the screen.
+ * The visible region INCLUDES areas overlapped by a translucent layer.
+ */
+ hwc_region_t visibleRegionScreen;
+
+ /* Sync fence object that will be signaled when the buffer's
+ * contents are available. May be -1 if the contents are already
+ * available. This field is only valid during set(), and should be
+ * ignored during prepare(). The set() call must not wait for the
+ * fence to be signaled before returning, but the HWC must wait for
+ * all buffers to be signaled before reading from them.
+ *
+ * HWC_FRAMEBUFFER layers will never have an acquire fence, since
+ * reads from them are complete before the framebuffer is ready for
+ * display.
+ *
+ * HWC_SIDEBAND layers will never have an acquire fence, since
+ * synchronization is handled through implementation-defined
+ * sideband mechanisms.
+ *
+ * The HWC takes ownership of the acquireFenceFd and is responsible
+ * for closing it when no longer needed.
+ */
+ int acquireFenceFd;
+
+ /* During set() the HWC must set this field to a file descriptor for
+ * a sync fence object that will signal after the HWC has finished
+ * reading from the buffer. The field is ignored by prepare(). Each
+ * layer should have a unique file descriptor, even if more than one
+ * refer to the same underlying fence object; this allows each to be
+ * closed independently.
+ *
+ * If buffer reads can complete at significantly different times,
+ * then using independent fences is preferred. For example, if the
+ * HWC handles some layers with a blit engine and others with
+ * overlays, then the blit layers can be reused immediately after
+ * the blit completes, but the overlay layers can't be reused until
+ * a subsequent frame has been displayed.
+ *
+ * Since HWC doesn't read from HWC_FRAMEBUFFER layers, it shouldn't
+ * produce a release fence for them. The releaseFenceFd will be -1
+ * for these layers when set() is called.
+ *
+ * Since HWC_SIDEBAND buffers don't pass through the HWC client,
+ * the HWC shouldn't produce a release fence for them. The
+ * releaseFenceFd will be -1 for these layers when set() is called.
+ *
+ * The HWC client taks ownership of the releaseFenceFd and is
+ * responsible for closing it when no longer needed.
+ */
+ int releaseFenceFd;
+
+ /*
+ * Availability: HWC_DEVICE_API_VERSION_1_2
+ *
+ * Alpha value applied to the whole layer. The effective
+ * value of each pixel is computed as:
+ *
+ * if (blending == HWC_BLENDING_PREMULT)
+ * pixel.rgb = pixel.rgb * planeAlpha / 255
+ * pixel.a = pixel.a * planeAlpha / 255
+ *
+ * Then blending proceeds as usual according to the "blending"
+ * field above.
+ *
+ * NOTE: planeAlpha applies to YUV layers as well:
+ *
+ * pixel.rgb = yuv_to_rgb(pixel.yuv)
+ * if (blending == HWC_BLENDING_PREMULT)
+ * pixel.rgb = pixel.rgb * planeAlpha / 255
+ * pixel.a = planeAlpha
+ *
+ *
+ * IMPLEMENTATION NOTE:
+ *
+ * If the source image doesn't have an alpha channel, then
+ * the h/w can use the HWC_BLENDING_COVERAGE equations instead of
+ * HWC_BLENDING_PREMULT and simply set the alpha channel to
+ * planeAlpha.
+ *
+ * e.g.:
+ *
+ * if (blending == HWC_BLENDING_PREMULT)
+ * blending = HWC_BLENDING_COVERAGE;
+ * pixel.a = planeAlpha;
+ *
+ */
+ uint8_t planeAlpha;
+
+ /* Pad to 32 bits */
+ uint8_t _pad[3];
+
+ /*
+ * Availability: HWC_DEVICE_API_VERSION_1_5
+ *
+ * This defines the region of the source buffer that has been
+ * modified since the last frame.
+ *
+ * If surfaceDamage.numRects > 0, then it may be assumed that any
+ * portion of the source buffer not covered by one of the rects has
+ * not been modified this frame. If surfaceDamage.numRects == 0,
+ * then the whole source buffer must be treated as if it had been
+ * modified.
+ *
+ * If the layer's contents are not modified relative to the prior
+ * prepare/set cycle, surfaceDamage will contain exactly one empty
+ * rect ([0, 0, 0, 0]).
+ *
+ * The damage rects are relative to the pre-transformed buffer, and
+ * their origin is the top-left corner.
+ */
+ hwc_region_t surfaceDamage;
+ };
+ };
+
+#ifdef __LP64__
+ /*
+ * For 64-bit mode, this struct is 120 bytes (and 8-byte aligned), and needs
+ * to be padded as such to maintain binary compatibility.
+ */
+ uint8_t reserved[120 - 112];
+#else
+ /*
+ * For 32-bit mode, this struct is 96 bytes, and needs to be padded as such
+ * to maintain binary compatibility.
+ */
+ uint8_t reserved[96 - 84];
+#endif
+
+} hwc_layer_1_t;
+
+/* This represents a display, typically an EGLDisplay object */
+typedef void* hwc_display_t;
+
+/* This represents a surface, typically an EGLSurface object */
+typedef void* hwc_surface_t;
+
+/*
+ * hwc_display_contents_1_t::flags values
+ */
+enum {
+ /*
+ * HWC_GEOMETRY_CHANGED is set by SurfaceFlinger to indicate that the list
+ * passed to (*prepare)() has changed by more than just the buffer handles
+ * and acquire fences.
+ */
+ HWC_GEOMETRY_CHANGED = 0x00000001,
+};
+
+/*
+ * Description of the contents to output on a display.
+ *
+ * This is the top-level structure passed to the prepare and set calls to
+ * negotiate and commit the composition of a display image.
+ */
+typedef struct hwc_display_contents_1 {
+ /* File descriptor referring to a Sync HAL fence object which will signal
+ * when this composition is retired. For a physical display, a composition
+ * is retired when it has been replaced on-screen by a subsequent set. For
+ * a virtual display, the composition is retired when the writes to
+ * outputBuffer are complete and can be read. The fence object is created
+ * and returned by the set call; this field will be -1 on entry to prepare
+ * and set. SurfaceFlinger will close the returned file descriptor.
+ */
+ int retireFenceFd;
+
+ union {
+ /* Fields only relevant for HWC_DEVICE_VERSION_1_0. */
+ struct {
+ /* (dpy, sur) is the target of SurfaceFlinger's OpenGL ES
+ * composition for HWC_DEVICE_VERSION_1_0. They aren't relevant to
+ * prepare. The set call should commit this surface atomically to
+ * the display along with any overlay layers.
+ */
+ hwc_display_t dpy;
+ hwc_surface_t sur;
+ };
+
+ /* These fields are used for virtual displays when the h/w composer
+ * version is at least HWC_DEVICE_VERSION_1_3. */
+ struct {
+ /* outbuf is the buffer that receives the composed image for
+ * virtual displays. Writes to the outbuf must wait until
+ * outbufAcquireFenceFd signals. A fence that will signal when
+ * writes to outbuf are complete should be returned in
+ * retireFenceFd.
+ *
+ * This field is set before prepare(), so properties of the buffer
+ * can be used to decide which layers can be handled by h/w
+ * composer.
+ *
+ * If prepare() sets all layers to FRAMEBUFFER, then GLES
+ * composition will happen directly to the output buffer. In this
+ * case, both outbuf and the FRAMEBUFFER_TARGET layer's buffer will
+ * be the same, and set() has no work to do besides managing fences.
+ *
+ * If the TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS board config
+ * variable is defined (not the default), then this behavior is
+ * changed: if all layers are marked for FRAMEBUFFER, GLES
+ * composition will take place to a scratch framebuffer, and
+ * h/w composer must copy it to the output buffer. This allows the
+ * h/w composer to do format conversion if there are cases where
+ * that is more desirable than doing it in the GLES driver or at the
+ * virtual display consumer.
+ *
+ * If some or all layers are marked OVERLAY, then the framebuffer
+ * and output buffer will be different. As with physical displays,
+ * the framebuffer handle will not change between frames if all
+ * layers are marked for OVERLAY.
+ */
+ buffer_handle_t outbuf;
+
+ /* File descriptor for a fence that will signal when outbuf is
+ * ready to be written. The h/w composer is responsible for closing
+ * this when no longer needed.
+ *
+ * Will be -1 whenever outbuf is NULL, or when the outbuf can be
+ * written immediately.
+ */
+ int outbufAcquireFenceFd;
+ };
+ };
+
+ /* List of layers that will be composed on the display. The buffer handles
+ * in the list will be unique. If numHwLayers is 0, all composition will be
+ * performed by SurfaceFlinger.
+ */
+ uint32_t flags;
+ size_t numHwLayers;
+ hwc_layer_1_t hwLayers[0];
+
+} hwc_display_contents_1_t;
+
+/* see hwc_composer_device::registerProcs()
+ * All of the callbacks are required and non-NULL unless otherwise noted.
+ */
+typedef struct hwc_procs {
+ /*
+ * (*invalidate)() triggers a screen refresh, in particular prepare and set
+ * will be called shortly after this call is made. Note that there is
+ * NO GUARANTEE that the screen refresh will happen after invalidate()
+ * returns (in particular, it could happen before).
+ * invalidate() is GUARANTEED TO NOT CALL BACK into the h/w composer HAL and
+ * it is safe to call invalidate() from any of hwc_composer_device
+ * hooks, unless noted otherwise.
+ */
+ void (*invalidate)(const struct hwc_procs* procs);
+
+ /*
+ * (*vsync)() is called by the h/w composer HAL when a vsync event is
+ * received and HWC_EVENT_VSYNC is enabled on a display
+ * (see: hwc_event_control).
+ *
+ * the "disp" parameter indicates which display the vsync event is for.
+ * the "timestamp" parameter is the system monotonic clock timestamp in
+ * nanosecond of when the vsync event happened.
+ *
+ * vsync() is GUARANTEED TO NOT CALL BACK into the h/w composer HAL.
+ *
+ * It is expected that vsync() is called from a thread of at least
+ * HAL_PRIORITY_URGENT_DISPLAY with as little latency as possible,
+ * typically less than 0.5 ms.
+ *
+ * It is a (silent) error to have HWC_EVENT_VSYNC enabled when calling
+ * hwc_composer_device.set(..., 0, 0, 0) (screen off). The implementation
+ * can either stop or continue to process VSYNC events, but must not
+ * crash or cause other problems.
+ */
+ void (*vsync)(const struct hwc_procs* procs, int disp, int64_t timestamp);
+
+ /*
+ * (*hotplug)() is called by the h/w composer HAL when a display is
+ * connected or disconnected. The PRIMARY display is always connected and
+ * the hotplug callback should not be called for it.
+ *
+ * The disp parameter indicates which display type this event is for.
+ * The connected parameter indicates whether the display has just been
+ * connected (1) or disconnected (0).
+ *
+ * The hotplug() callback may call back into the h/w composer on the same
+ * thread to query refresh rate and dpi for the display. Additionally,
+ * other threads may be calling into the h/w composer while the callback
+ * is in progress.
+ *
+ * The h/w composer must serialize calls to the hotplug callback; only
+ * one thread may call it at a time.
+ *
+ * This callback will be NULL if the h/w composer is using
+ * HWC_DEVICE_API_VERSION_1_0.
+ */
+ void (*hotplug)(const struct hwc_procs* procs, int disp, int connected);
+
+} hwc_procs_t;
+
+
+/*****************************************************************************/
+
+typedef struct hwc_module {
+ /**
+ * Common methods of the hardware composer module. This *must* be the first member of
+ * hwc_module as users of this structure will cast a hw_module_t to
+ * hwc_module pointer in contexts where it's known the hw_module_t references a
+ * hwc_module.
+ */
+ struct hw_module_t common;
+} hwc_module_t;
+
+typedef struct hwc_composer_device_1 {
+ /**
+ * Common methods of the hardware composer device. This *must* be the first member of
+ * hwc_composer_device_1 as users of this structure will cast a hw_device_t to
+ * hwc_composer_device_1 pointer in contexts where it's known the hw_device_t references a
+ * hwc_composer_device_1.
+ */
+ struct hw_device_t common;
+
+ /*
+ * (*prepare)() is called for each frame before composition and is used by
+ * SurfaceFlinger to determine what composition steps the HWC can handle.
+ *
+ * (*prepare)() can be called more than once, the last call prevails.
+ *
+ * The HWC responds by setting the compositionType field in each layer to
+ * either HWC_FRAMEBUFFER, HWC_OVERLAY, or HWC_CURSOR_OVERLAY. For the
+ * HWC_FRAMEBUFFER type, composition for the layer is handled by
+ * SurfaceFlinger with OpenGL ES. For the latter two overlay types,
+ * the HWC will have to handle the layer's composition. compositionType
+ * and hints are preserved between (*prepare)() calles unless the
+ * HWC_GEOMETRY_CHANGED flag is set.
+ *
+ * (*prepare)() is called with HWC_GEOMETRY_CHANGED to indicate that the
+ * list's geometry has changed, that is, when more than just the buffer's
+ * handles have been updated. Typically this happens (but is not limited to)
+ * when a window is added, removed, resized or moved. In this case
+ * compositionType and hints are reset to their default value.
+ *
+ * For HWC 1.0, numDisplays will always be one, and displays[0] will be
+ * non-NULL.
+ *
+ * For HWC 1.1, numDisplays will always be HWC_NUM_PHYSICAL_DISPLAY_TYPES.
+ * Entries for unsupported or disabled/disconnected display types will be
+ * NULL.
+ *
+ * In HWC 1.3, numDisplays may be up to HWC_NUM_DISPLAY_TYPES. The extra
+ * entries correspond to enabled virtual displays, and will be non-NULL.
+ *
+ * returns: 0 on success. An negative error code on error. If an error is
+ * returned, SurfaceFlinger will assume that none of the layer will be
+ * handled by the HWC.
+ */
+ int (*prepare)(struct hwc_composer_device_1 *dev,
+ size_t numDisplays, hwc_display_contents_1_t** displays);
+
+ /*
+ * (*set)() is used in place of eglSwapBuffers(), and assumes the same
+ * functionality, except it also commits the work list atomically with
+ * the actual eglSwapBuffers().
+ *
+ * The layer lists are guaranteed to be the same as the ones returned from
+ * the last call to (*prepare)().
+ *
+ * When this call returns the caller assumes that the displays will be
+ * updated in the near future with the content of their work lists, without
+ * artifacts during the transition from the previous frame.
+ *
+ * A display with zero layers indicates that the entire composition has
+ * been handled by SurfaceFlinger with OpenGL ES. In this case, (*set)()
+ * behaves just like eglSwapBuffers().
+ *
+ * For HWC 1.0, numDisplays will always be one, and displays[0] will be
+ * non-NULL.
+ *
+ * For HWC 1.1, numDisplays will always be HWC_NUM_PHYSICAL_DISPLAY_TYPES.
+ * Entries for unsupported or disabled/disconnected display types will be
+ * NULL.
+ *
+ * In HWC 1.3, numDisplays may be up to HWC_NUM_DISPLAY_TYPES. The extra
+ * entries correspond to enabled virtual displays, and will be non-NULL.
+ *
+ * IMPORTANT NOTE: There is an implicit layer containing opaque black
+ * pixels behind all the layers in the list. It is the responsibility of
+ * the hwcomposer module to make sure black pixels are output (or blended
+ * from).
+ *
+ * IMPORTANT NOTE: In the event of an error this call *MUST* still cause
+ * any fences returned in the previous call to set to eventually become
+ * signaled. The caller may have already issued wait commands on these
+ * fences, and having set return without causing those fences to signal
+ * will likely result in a deadlock.
+ *
+ * returns: 0 on success. A negative error code on error:
+ * HWC_EGL_ERROR: eglGetError() will provide the proper error code (only
+ * allowed prior to HWComposer 1.1)
+ * Another code for non EGL errors.
+ */
+ int (*set)(struct hwc_composer_device_1 *dev,
+ size_t numDisplays, hwc_display_contents_1_t** displays);
+
+ /*
+ * eventControl(..., event, enabled)
+ * Enables or disables h/w composer events for a display.
+ *
+ * eventControl can be called from any thread and takes effect
+ * immediately.
+ *
+ * Supported events are:
+ * HWC_EVENT_VSYNC
+ *
+ * returns -EINVAL if the "event" parameter is not one of the value above
+ * or if the "enabled" parameter is not 0 or 1.
+ */
+ int (*eventControl)(struct hwc_composer_device_1* dev, int disp,
+ int event, int enabled);
+
+ union {
+ /*
+ * For HWC 1.3 and earlier, the blank() interface is used.
+ *
+ * blank(..., blank)
+ * Blanks or unblanks a display's screen.
+ *
+ * Turns the screen off when blank is nonzero, on when blank is zero.
+ * Multiple sequential calls with the same blank value must be
+ * supported.
+ * The screen state transition must be be complete when the function
+ * returns.
+ *
+ * returns 0 on success, negative on error.
+ */
+ int (*blank)(struct hwc_composer_device_1* dev, int disp, int blank);
+
+ /*
+ * For HWC 1.4 and above, setPowerMode() will be used in place of
+ * blank().
+ *
+ * setPowerMode(..., mode)
+ * Sets the display screen's power state.
+ *
+ * Refer to the documentation of the HWC_POWER_MODE_* constants
+ * for information about each power mode.
+ *
+ * The functionality is similar to the blank() command in previous
+ * versions of HWC, but with support for more power states.
+ *
+ * The display driver is expected to retain and restore the low power
+ * state of the display while entering and exiting from suspend.
+ *
+ * Multiple sequential calls with the same mode value must be supported.
+ *
+ * The screen state transition must be be complete when the function
+ * returns.
+ *
+ * returns 0 on success, negative on error.
+ */
+ int (*setPowerMode)(struct hwc_composer_device_1* dev, int disp,
+ int mode);
+ };
+
+ /*
+ * Used to retrieve information about the h/w composer
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*query)(struct hwc_composer_device_1* dev, int what, int* value);
+
+ /*
+ * (*registerProcs)() registers callbacks that the h/w composer HAL can
+ * later use. It will be called immediately after the composer device is
+ * opened with non-NULL procs. It is FORBIDDEN to call any of the callbacks
+ * from within registerProcs(). registerProcs() must save the hwc_procs_t
+ * pointer which is needed when calling a registered callback.
+ */
+ void (*registerProcs)(struct hwc_composer_device_1* dev,
+ hwc_procs_t const* procs);
+
+ /*
+ * This field is OPTIONAL and can be NULL.
+ *
+ * If non NULL it will be called by SurfaceFlinger on dumpsys
+ */
+ void (*dump)(struct hwc_composer_device_1* dev, char *buff, int buff_len);
+
+ /*
+ * (*getDisplayConfigs)() returns handles for the configurations available
+ * on the connected display. These handles must remain valid as long as the
+ * display is connected.
+ *
+ * Configuration handles are written to configs. The number of entries
+ * allocated by the caller is passed in *numConfigs; getDisplayConfigs must
+ * not try to write more than this number of config handles. On return, the
+ * total number of configurations available for the display is returned in
+ * *numConfigs. If *numConfigs is zero on entry, then configs may be NULL.
+ *
+ * Hardware composers implementing HWC_DEVICE_API_VERSION_1_3 or prior
+ * shall choose one configuration to activate and report it as the first
+ * entry in the returned list. Reporting the inactive configurations is not
+ * required.
+ *
+ * HWC_DEVICE_API_VERSION_1_4 and later provide configuration management
+ * through SurfaceFlinger, and hardware composers implementing these APIs
+ * must also provide getActiveConfig and setActiveConfig. Hardware composers
+ * implementing these API versions may choose not to activate any
+ * configuration, leaving configuration selection to higher levels of the
+ * framework.
+ *
+ * Returns 0 on success or a negative error code on error. If disp is a
+ * hotpluggable display type and no display is connected, an error shall be
+ * returned.
+ *
+ * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_1 and later.
+ * It shall be NULL for previous versions.
+ */
+ int (*getDisplayConfigs)(struct hwc_composer_device_1* dev, int disp,
+ uint32_t* configs, size_t* numConfigs);
+
+ /*
+ * (*getDisplayAttributes)() returns attributes for a specific config of a
+ * connected display. The config parameter is one of the config handles
+ * returned by getDisplayConfigs.
+ *
+ * The list of attributes to return is provided in the attributes
+ * parameter, terminated by HWC_DISPLAY_NO_ATTRIBUTE. The value for each
+ * requested attribute is written in order to the values array. The
+ * HWC_DISPLAY_NO_ATTRIBUTE attribute does not have a value, so the values
+ * array will have one less value than the attributes array.
+ *
+ * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_1 and later.
+ * It shall be NULL for previous versions.
+ *
+ * If disp is a hotpluggable display type and no display is connected,
+ * or if config is not a valid configuration for the display, a negative
+ * error code shall be returned.
+ */
+ int (*getDisplayAttributes)(struct hwc_composer_device_1* dev, int disp,
+ uint32_t config, const uint32_t* attributes, int32_t* values);
+
+ /*
+ * (*getActiveConfig)() returns the index of the configuration that is
+ * currently active on the connected display. The index is relative to
+ * the list of configuration handles returned by getDisplayConfigs. If there
+ * is no active configuration, -1 shall be returned.
+ *
+ * Returns the configuration index on success or -1 on error.
+ *
+ * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_4 and later.
+ * It shall be NULL for previous versions.
+ */
+ int (*getActiveConfig)(struct hwc_composer_device_1* dev, int disp);
+
+ /*
+ * (*setActiveConfig)() instructs the hardware composer to switch to the
+ * display configuration at the given index in the list of configuration
+ * handles returned by getDisplayConfigs.
+ *
+ * If this function returns without error, any subsequent calls to
+ * getActiveConfig shall return the index set by this function until one
+ * of the following occurs:
+ * 1) Another successful call of this function
+ * 2) The display is disconnected
+ *
+ * Returns 0 on success or a negative error code on error. If disp is a
+ * hotpluggable display type and no display is connected, or if index is
+ * outside of the range of hardware configurations returned by
+ * getDisplayConfigs, an error shall be returned.
+ *
+ * This field is REQUIRED for HWC_DEVICE_API_VERSION_1_4 and later.
+ * It shall be NULL for previous versions.
+ */
+ int (*setActiveConfig)(struct hwc_composer_device_1* dev, int disp,
+ int index);
+ /*
+ * Asynchronously update the location of the cursor layer.
+ *
+ * Within the standard prepare()/set() composition loop, the client
+ * (surfaceflinger) can request that a given layer uses dedicated cursor
+ * composition hardware by specifiying the HWC_IS_CURSOR_LAYER flag. Only
+ * one layer per display can have this flag set. If the layer is suitable
+ * for the platform's cursor hardware, hwcomposer will return from prepare()
+ * a composition type of HWC_CURSOR_OVERLAY for that layer. This indicates
+ * not only that the client is not responsible for compositing that layer,
+ * but also that the client can continue to update the position of that layer
+ * after a call to set(). This can reduce the visible latency of mouse
+ * movement to visible, on-screen cursor updates. Calls to
+ * setCursorPositionAsync() may be made from a different thread doing the
+ * prepare()/set() composition loop, but care must be taken to not interleave
+ * calls of setCursorPositionAsync() between calls of set()/prepare().
+ *
+ * Notes:
+ * - Only one layer per display can be specified as a cursor layer with
+ * HWC_IS_CURSOR_LAYER.
+ * - hwcomposer will only return one layer per display as HWC_CURSOR_OVERLAY
+ * - This returns 0 on success or -errno on error.
+ * - This field is optional for HWC_DEVICE_API_VERSION_1_4 and later. It
+ * should be null for previous versions.
+ */
+ int (*setCursorPositionAsync)(struct hwc_composer_device_1 *dev, int disp, int x_pos, int y_pos);
+
+ /*
+ * Reserved for future use. Must be NULL.
+ */
+ void* reserved_proc[1];
+
+} hwc_composer_device_1_t;
+
+/** convenience API for opening and closing a device */
+
+static inline int hwc_open_1(const struct hw_module_t* module,
+ hwc_composer_device_1_t** device) {
+ return module->methods->open(module,
+ HWC_HARDWARE_COMPOSER, (struct hw_device_t**)device);
+}
+
+static inline int hwc_close_1(hwc_composer_device_1_t* device) {
+ return device->common.close(&device->common);
+}
+
+/*****************************************************************************/
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_H */
diff --git a/libhardware/include/hardware/hwcomposer_defs.h b/libhardware/include/hardware/hwcomposer_defs.h
new file mode 100644
index 0000000..a19a26c
--- /dev/null
+++ b/libhardware/include/hardware/hwcomposer_defs.h
@@ -0,0 +1,252 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H
+#define ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+
+#include <hardware/gralloc.h>
+#include <hardware/hardware.h>
+#include <cutils/native_handle.h>
+
+__BEGIN_DECLS
+
+/*****************************************************************************/
+
+#define HWC_HEADER_VERSION 1
+
+#define HWC_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+
+#define HWC_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION_2(1, 0, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_1 HARDWARE_DEVICE_API_VERSION_2(1, 1, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_2 HARDWARE_DEVICE_API_VERSION_2(1, 2, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_3 HARDWARE_DEVICE_API_VERSION_2(1, 3, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_4 HARDWARE_DEVICE_API_VERSION_2(1, 4, HWC_HEADER_VERSION)
+#define HWC_DEVICE_API_VERSION_1_5 HARDWARE_DEVICE_API_VERSION_2(1, 5, HWC_HEADER_VERSION)
+
+enum {
+ /* hwc_composer_device_t::set failed in EGL */
+ HWC_EGL_ERROR = -1
+};
+
+/*
+ * hwc_layer_t::hints values
+ * Hints are set by the HAL and read by SurfaceFlinger
+ */
+enum {
+ /*
+ * HWC can set the HWC_HINT_TRIPLE_BUFFER hint to indicate to SurfaceFlinger
+ * that it should triple buffer this layer. Typically HWC does this when
+ * the layer will be unavailable for use for an extended period of time,
+ * e.g. if the display will be fetching data directly from the layer and
+ * the layer can not be modified until after the next set().
+ */
+ HWC_HINT_TRIPLE_BUFFER = 0x00000001,
+
+ /*
+ * HWC sets HWC_HINT_CLEAR_FB to tell SurfaceFlinger that it should clear the
+ * framebuffer with transparent pixels where this layer would be.
+ * SurfaceFlinger will only honor this flag when the layer has no blending
+ *
+ */
+ HWC_HINT_CLEAR_FB = 0x00000002
+};
+
+/*
+ * hwc_layer_t::flags values
+ * Flags are set by SurfaceFlinger and read by the HAL
+ */
+enum {
+ /*
+ * HWC_SKIP_LAYER is set by SurfaceFlnger to indicate that the HAL
+ * shall not consider this layer for composition as it will be handled
+ * by SurfaceFlinger (just as if compositionType was set to HWC_OVERLAY).
+ */
+ HWC_SKIP_LAYER = 0x00000001,
+
+ /*
+ * HWC_IS_CURSOR_LAYER is set by surfaceflinger to indicate that this
+ * layer is being used as a cursor on this particular display, and that
+ * surfaceflinger can potentially perform asynchronous position updates for
+ * this layer. If a call to prepare() returns HWC_CURSOR_OVERLAY for the
+ * composition type of this layer, then the hwcomposer will allow async
+ * position updates to this layer via setCursorPositionAsync().
+ */
+ HWC_IS_CURSOR_LAYER = 0x00000002
+};
+
+/*
+ * hwc_layer_t::compositionType values
+ */
+enum {
+ /* this layer is to be drawn into the framebuffer by SurfaceFlinger */
+ HWC_FRAMEBUFFER = 0,
+
+ /* this layer will be handled in the HWC */
+ HWC_OVERLAY = 1,
+
+ /* this is the background layer. it's used to set the background color.
+ * there is only a single background layer */
+ HWC_BACKGROUND = 2,
+
+ /* this layer holds the result of compositing the HWC_FRAMEBUFFER layers.
+ * Added in HWC_DEVICE_API_VERSION_1_1. */
+ HWC_FRAMEBUFFER_TARGET = 3,
+
+ /* this layer's contents are taken from a sideband buffer stream.
+ * Added in HWC_DEVICE_API_VERSION_1_4. */
+ HWC_SIDEBAND = 4,
+
+ /* this layer's composition will be handled by hwcomposer by dedicated
+ cursor overlay hardware. hwcomposer will also all async position updates
+ of this layer outside of the normal prepare()/set() loop. Added in
+ HWC_DEVICE_API_VERSION_1_4. */
+ HWC_CURSOR_OVERLAY = 5
+ };
+/*
+ * hwc_layer_t::blending values
+ */
+enum {
+ /* no blending */
+ HWC_BLENDING_NONE = 0x0100,
+
+ /* ONE / ONE_MINUS_SRC_ALPHA */
+ HWC_BLENDING_PREMULT = 0x0105,
+
+ /* SRC_ALPHA / ONE_MINUS_SRC_ALPHA */
+ HWC_BLENDING_COVERAGE = 0x0405
+};
+
+/*
+ * hwc_layer_t::transform values
+ */
+enum {
+ /* flip source image horizontally */
+ HWC_TRANSFORM_FLIP_H = HAL_TRANSFORM_FLIP_H,
+ /* flip source image vertically */
+ HWC_TRANSFORM_FLIP_V = HAL_TRANSFORM_FLIP_V,
+ /* rotate source image 90 degrees clock-wise */
+ HWC_TRANSFORM_ROT_90 = HAL_TRANSFORM_ROT_90,
+ /* rotate source image 180 degrees */
+ HWC_TRANSFORM_ROT_180 = HAL_TRANSFORM_ROT_180,
+ /* rotate source image 270 degrees clock-wise */
+ HWC_TRANSFORM_ROT_270 = HAL_TRANSFORM_ROT_270,
+};
+
+/* attributes queriable with query() */
+enum {
+ /*
+ * Must return 1 if the background layer is supported, 0 otherwise.
+ */
+ HWC_BACKGROUND_LAYER_SUPPORTED = 0,
+
+ /*
+ * Returns the vsync period in nanoseconds.
+ *
+ * This query is not used for HWC_DEVICE_API_VERSION_1_1 and later.
+ * Instead, the per-display attribute HWC_DISPLAY_VSYNC_PERIOD is used.
+ */
+ HWC_VSYNC_PERIOD = 1,
+
+ /*
+ * Availability: HWC_DEVICE_API_VERSION_1_1
+ * Returns a mask of supported display types.
+ */
+ HWC_DISPLAY_TYPES_SUPPORTED = 2,
+};
+
+/* display attributes returned by getDisplayAttributes() */
+enum {
+ /* Indicates the end of an attribute list */
+ HWC_DISPLAY_NO_ATTRIBUTE = 0,
+
+ /* The vsync period in nanoseconds */
+ HWC_DISPLAY_VSYNC_PERIOD = 1,
+
+ /* The number of pixels in the horizontal and vertical directions. */
+ HWC_DISPLAY_WIDTH = 2,
+ HWC_DISPLAY_HEIGHT = 3,
+
+ /* The number of pixels per thousand inches of this configuration.
+ *
+ * Scaling DPI by 1000 allows it to be stored in an int without losing
+ * too much precision.
+ *
+ * If the DPI for a configuration is unavailable or the HWC implementation
+ * considers it unreliable, it should set these attributes to zero.
+ */
+ HWC_DISPLAY_DPI_X = 4,
+ HWC_DISPLAY_DPI_Y = 5,
+
+ /* Indicates which of the vendor-defined color transforms is provided by
+ * this configuration. */
+ HWC_DISPLAY_COLOR_TRANSFORM = 6,
+};
+
+/* Allowed events for hwc_methods::eventControl() */
+enum {
+ HWC_EVENT_VSYNC = 0
+};
+
+/* Display types and associated mask bits. */
+enum {
+ HWC_DISPLAY_PRIMARY = 0,
+ HWC_DISPLAY_EXTERNAL = 1, // HDMI, DP, etc.
+ HWC_DISPLAY_VIRTUAL = 2,
+
+ HWC_NUM_PHYSICAL_DISPLAY_TYPES = 2,
+ HWC_NUM_DISPLAY_TYPES = 3,
+};
+
+enum {
+ HWC_DISPLAY_PRIMARY_BIT = 1 << HWC_DISPLAY_PRIMARY,
+ HWC_DISPLAY_EXTERNAL_BIT = 1 << HWC_DISPLAY_EXTERNAL,
+ HWC_DISPLAY_VIRTUAL_BIT = 1 << HWC_DISPLAY_VIRTUAL,
+};
+
+/* Display power modes */
+enum {
+ /* The display is turned off (blanked). */
+ HWC_POWER_MODE_OFF = 0,
+ /* The display is turned on and configured in a low power state
+ * that is suitable for presenting ambient information to the user,
+ * possibly with lower fidelity than normal but greater efficiency. */
+ HWC_POWER_MODE_DOZE = 1,
+ /* The display is turned on normally. */
+ HWC_POWER_MODE_NORMAL = 2,
+ /* The display is configured as in HWC_POWER_MODE_DOZE but may
+ * stop applying frame buffer updates from the graphics subsystem.
+ * This power mode is effectively a hint from the doze dream to
+ * tell the hardware that it is done drawing to the display for the
+ * time being and that the display should remain on in a low power
+ * state and continue showing its current contents indefinitely
+ * until the mode changes.
+ *
+ * This mode may also be used as a signal to enable hardware-based doze
+ * functionality. In this case, the doze dream is effectively
+ * indicating that the hardware is free to take over the display
+ * and manage it autonomously to implement low power always-on display
+ * functionality. */
+ HWC_POWER_MODE_DOZE_SUSPEND = 3,
+};
+
+/*****************************************************************************/
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_HARDWARE_HWCOMPOSER_DEFS_H */
diff --git a/libhardware/include/hardware/input.h b/libhardware/include/hardware/input.h
new file mode 100644
index 0000000..969b8ce
--- /dev/null
+++ b/libhardware/include/hardware/input.h
@@ -0,0 +1,549 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_INPUT_H
+#define ANDROID_INCLUDE_HARDWARE_INPUT_H
+
+#include <hardware/hardware.h>
+#include <stdint.h>
+
+__BEGIN_DECLS
+
+#define INPUT_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define INPUT_HARDWARE_MODULE_ID "input"
+
+#define INPUT_INSTANCE_EVDEV "evdev"
+
+typedef enum input_bus {
+ INPUT_BUS_BT,
+ INPUT_BUS_USB,
+ INPUT_BUS_SERIAL,
+ INPUT_BUS_BUILTIN
+} input_bus_t;
+
+typedef struct input_host input_host_t;
+
+typedef struct input_device_handle input_device_handle_t;
+
+typedef struct input_device_identifier input_device_identifier_t;
+
+typedef struct input_device_definition input_device_definition_t;
+
+typedef struct input_report_definition input_report_definition_t;
+
+typedef struct input_report input_report_t;
+
+typedef struct input_collection input_collection_t;
+
+typedef struct input_property_map input_property_map_t;
+
+typedef struct input_property input_property_t;
+
+typedef enum {
+ // keycodes
+ INPUT_USAGE_KEYCODE_UNKNOWN,
+ INPUT_USAGE_KEYCODE_SOFT_LEFT,
+ INPUT_USAGE_KEYCODE_SOFT_RIGHT,
+ INPUT_USAGE_KEYCODE_HOME,
+ INPUT_USAGE_KEYCODE_BACK,
+ INPUT_USAGE_KEYCODE_CALL,
+ INPUT_USAGE_KEYCODE_ENDCALL,
+ INPUT_USAGE_KEYCODE_0,
+ INPUT_USAGE_KEYCODE_1,
+ INPUT_USAGE_KEYCODE_2,
+ INPUT_USAGE_KEYCODE_3,
+ INPUT_USAGE_KEYCODE_4,
+ INPUT_USAGE_KEYCODE_5,
+ INPUT_USAGE_KEYCODE_6,
+ INPUT_USAGE_KEYCODE_7,
+ INPUT_USAGE_KEYCODE_8,
+ INPUT_USAGE_KEYCODE_9,
+ INPUT_USAGE_KEYCODE_STAR,
+ INPUT_USAGE_KEYCODE_POUND,
+ INPUT_USAGE_KEYCODE_DPAD_UP,
+ INPUT_USAGE_KEYCODE_DPAD_DOWN,
+ INPUT_USAGE_KEYCODE_DPAD_LEFT,
+ INPUT_USAGE_KEYCODE_DPAD_RIGHT,
+ INPUT_USAGE_KEYCODE_DPAD_CENTER,
+ INPUT_USAGE_KEYCODE_VOLUME_UP,
+ INPUT_USAGE_KEYCODE_VOLUME_DOWN,
+ INPUT_USAGE_KEYCODE_POWER,
+ INPUT_USAGE_KEYCODE_CAMERA,
+ INPUT_USAGE_KEYCODE_CLEAR,
+ INPUT_USAGE_KEYCODE_A,
+ INPUT_USAGE_KEYCODE_B,
+ INPUT_USAGE_KEYCODE_C,
+ INPUT_USAGE_KEYCODE_D,
+ INPUT_USAGE_KEYCODE_E,
+ INPUT_USAGE_KEYCODE_F,
+ INPUT_USAGE_KEYCODE_G,
+ INPUT_USAGE_KEYCODE_H,
+ INPUT_USAGE_KEYCODE_I,
+ INPUT_USAGE_KEYCODE_J,
+ INPUT_USAGE_KEYCODE_K,
+ INPUT_USAGE_KEYCODE_L,
+ INPUT_USAGE_KEYCODE_M,
+ INPUT_USAGE_KEYCODE_N,
+ INPUT_USAGE_KEYCODE_O,
+ INPUT_USAGE_KEYCODE_P,
+ INPUT_USAGE_KEYCODE_Q,
+ INPUT_USAGE_KEYCODE_R,
+ INPUT_USAGE_KEYCODE_S,
+ INPUT_USAGE_KEYCODE_T,
+ INPUT_USAGE_KEYCODE_U,
+ INPUT_USAGE_KEYCODE_V,
+ INPUT_USAGE_KEYCODE_W,
+ INPUT_USAGE_KEYCODE_X,
+ INPUT_USAGE_KEYCODE_Y,
+ INPUT_USAGE_KEYCODE_Z,
+ INPUT_USAGE_KEYCODE_COMMA,
+ INPUT_USAGE_KEYCODE_PERIOD,
+ INPUT_USAGE_KEYCODE_ALT_LEFT,
+ INPUT_USAGE_KEYCODE_ALT_RIGHT,
+ INPUT_USAGE_KEYCODE_SHIFT_LEFT,
+ INPUT_USAGE_KEYCODE_SHIFT_RIGHT,
+ INPUT_USAGE_KEYCODE_TAB,
+ INPUT_USAGE_KEYCODE_SPACE,
+ INPUT_USAGE_KEYCODE_SYM,
+ INPUT_USAGE_KEYCODE_EXPLORER,
+ INPUT_USAGE_KEYCODE_ENVELOPE,
+ INPUT_USAGE_KEYCODE_ENTER,
+ INPUT_USAGE_KEYCODE_DEL,
+ INPUT_USAGE_KEYCODE_GRAVE,
+ INPUT_USAGE_KEYCODE_MINUS,
+ INPUT_USAGE_KEYCODE_EQUALS,
+ INPUT_USAGE_KEYCODE_LEFT_BRACKET,
+ INPUT_USAGE_KEYCODE_RIGHT_BRACKET,
+ INPUT_USAGE_KEYCODE_BACKSLASH,
+ INPUT_USAGE_KEYCODE_SEMICOLON,
+ INPUT_USAGE_KEYCODE_APOSTROPHE,
+ INPUT_USAGE_KEYCODE_SLASH,
+ INPUT_USAGE_KEYCODE_AT,
+ INPUT_USAGE_KEYCODE_NUM,
+ INPUT_USAGE_KEYCODE_HEADSETHOOK,
+ INPUT_USAGE_KEYCODE_FOCUS, // *Camera* focus
+ INPUT_USAGE_KEYCODE_PLUS,
+ INPUT_USAGE_KEYCODE_MENU,
+ INPUT_USAGE_KEYCODE_NOTIFICATION,
+ INPUT_USAGE_KEYCODE_SEARCH,
+ INPUT_USAGE_KEYCODE_MEDIA_PLAY_PAUSE,
+ INPUT_USAGE_KEYCODE_MEDIA_STOP,
+ INPUT_USAGE_KEYCODE_MEDIA_NEXT,
+ INPUT_USAGE_KEYCODE_MEDIA_PREVIOUS,
+ INPUT_USAGE_KEYCODE_MEDIA_REWIND,
+ INPUT_USAGE_KEYCODE_MEDIA_FAST_FORWARD,
+ INPUT_USAGE_KEYCODE_MUTE,
+ INPUT_USAGE_KEYCODE_PAGE_UP,
+ INPUT_USAGE_KEYCODE_PAGE_DOWN,
+ INPUT_USAGE_KEYCODE_PICTSYMBOLS,
+ INPUT_USAGE_KEYCODE_SWITCH_CHARSET,
+ INPUT_USAGE_KEYCODE_BUTTON_A,
+ INPUT_USAGE_KEYCODE_BUTTON_B,
+ INPUT_USAGE_KEYCODE_BUTTON_C,
+ INPUT_USAGE_KEYCODE_BUTTON_X,
+ INPUT_USAGE_KEYCODE_BUTTON_Y,
+ INPUT_USAGE_KEYCODE_BUTTON_Z,
+ INPUT_USAGE_KEYCODE_BUTTON_L1,
+ INPUT_USAGE_KEYCODE_BUTTON_R1,
+ INPUT_USAGE_KEYCODE_BUTTON_L2,
+ INPUT_USAGE_KEYCODE_BUTTON_R2,
+ INPUT_USAGE_KEYCODE_BUTTON_THUMBL,
+ INPUT_USAGE_KEYCODE_BUTTON_THUMBR,
+ INPUT_USAGE_KEYCODE_BUTTON_START,
+ INPUT_USAGE_KEYCODE_BUTTON_SELECT,
+ INPUT_USAGE_KEYCODE_BUTTON_MODE,
+ INPUT_USAGE_KEYCODE_ESCAPE,
+ INPUT_USAGE_KEYCODE_FORWARD_DEL,
+ INPUT_USAGE_KEYCODE_CTRL_LEFT,
+ INPUT_USAGE_KEYCODE_CTRL_RIGHT,
+ INPUT_USAGE_KEYCODE_CAPS_LOCK,
+ INPUT_USAGE_KEYCODE_SCROLL_LOCK,
+ INPUT_USAGE_KEYCODE_META_LEFT,
+ INPUT_USAGE_KEYCODE_META_RIGHT,
+ INPUT_USAGE_KEYCODE_FUNCTION,
+ INPUT_USAGE_KEYCODE_SYSRQ,
+ INPUT_USAGE_KEYCODE_BREAK,
+ INPUT_USAGE_KEYCODE_MOVE_HOME,
+ INPUT_USAGE_KEYCODE_MOVE_END,
+ INPUT_USAGE_KEYCODE_INSERT,
+ INPUT_USAGE_KEYCODE_FORWARD,
+ INPUT_USAGE_KEYCODE_MEDIA_PLAY,
+ INPUT_USAGE_KEYCODE_MEDIA_PAUSE,
+ INPUT_USAGE_KEYCODE_MEDIA_CLOSE,
+ INPUT_USAGE_KEYCODE_MEDIA_EJECT,
+ INPUT_USAGE_KEYCODE_MEDIA_RECORD,
+ INPUT_USAGE_KEYCODE_F1,
+ INPUT_USAGE_KEYCODE_F2,
+ INPUT_USAGE_KEYCODE_F3,
+ INPUT_USAGE_KEYCODE_F4,
+ INPUT_USAGE_KEYCODE_F5,
+ INPUT_USAGE_KEYCODE_F6,
+ INPUT_USAGE_KEYCODE_F7,
+ INPUT_USAGE_KEYCODE_F8,
+ INPUT_USAGE_KEYCODE_F9,
+ INPUT_USAGE_KEYCODE_F10,
+ INPUT_USAGE_KEYCODE_F11,
+ INPUT_USAGE_KEYCODE_F12,
+ INPUT_USAGE_KEYCODE_NUM_LOCK,
+ INPUT_USAGE_KEYCODE_NUMPAD_0,
+ INPUT_USAGE_KEYCODE_NUMPAD_1,
+ INPUT_USAGE_KEYCODE_NUMPAD_2,
+ INPUT_USAGE_KEYCODE_NUMPAD_3,
+ INPUT_USAGE_KEYCODE_NUMPAD_4,
+ INPUT_USAGE_KEYCODE_NUMPAD_5,
+ INPUT_USAGE_KEYCODE_NUMPAD_6,
+ INPUT_USAGE_KEYCODE_NUMPAD_7,
+ INPUT_USAGE_KEYCODE_NUMPAD_8,
+ INPUT_USAGE_KEYCODE_NUMPAD_9,
+ INPUT_USAGE_KEYCODE_NUMPAD_DIVIDE,
+ INPUT_USAGE_KEYCODE_NUMPAD_MULTIPLY,
+ INPUT_USAGE_KEYCODE_NUMPAD_SUBTRACT,
+ INPUT_USAGE_KEYCODE_NUMPAD_ADD,
+ INPUT_USAGE_KEYCODE_NUMPAD_DOT,
+ INPUT_USAGE_KEYCODE_NUMPAD_COMMA,
+ INPUT_USAGE_KEYCODE_NUMPAD_ENTER,
+ INPUT_USAGE_KEYCODE_NUMPAD_EQUALS,
+ INPUT_USAGE_KEYCODE_NUMPAD_LEFT_PAREN,
+ INPUT_USAGE_KEYCODE_NUMPAD_RIGHT_PAREN,
+ INPUT_USAGE_KEYCODE_VOLUME_MUTE,
+ INPUT_USAGE_KEYCODE_INFO,
+ INPUT_USAGE_KEYCODE_CHANNEL_UP,
+ INPUT_USAGE_KEYCODE_CHANNEL_DOWN,
+ INPUT_USAGE_KEYCODE_ZOOM_IN,
+ INPUT_USAGE_KEYCODE_ZOOM_OUT,
+ INPUT_USAGE_KEYCODE_TV,
+ INPUT_USAGE_KEYCODE_WINDOW,
+ INPUT_USAGE_KEYCODE_GUIDE,
+ INPUT_USAGE_KEYCODE_DVR,
+ INPUT_USAGE_KEYCODE_BOOKMARK,
+ INPUT_USAGE_KEYCODE_CAPTIONS,
+ INPUT_USAGE_KEYCODE_SETTINGS,
+ INPUT_USAGE_KEYCODE_TV_POWER,
+ INPUT_USAGE_KEYCODE_TV_INPUT,
+ INPUT_USAGE_KEYCODE_STB_POWER,
+ INPUT_USAGE_KEYCODE_STB_INPUT,
+ INPUT_USAGE_KEYCODE_AVR_POWER,
+ INPUT_USAGE_KEYCODE_AVR_INPUT,
+ INPUT_USAGE_KEYCODE_PROG_RED,
+ INPUT_USAGE_KEYCODE_PROG_GREEN,
+ INPUT_USAGE_KEYCODE_PROG_YELLOW,
+ INPUT_USAGE_KEYCODE_PROG_BLUE,
+ INPUT_USAGE_KEYCODE_APP_SWITCH,
+ INPUT_USAGE_KEYCODE_BUTTON_1,
+ INPUT_USAGE_KEYCODE_BUTTON_2,
+ INPUT_USAGE_KEYCODE_BUTTON_3,
+ INPUT_USAGE_KEYCODE_BUTTON_4,
+ INPUT_USAGE_KEYCODE_BUTTON_5,
+ INPUT_USAGE_KEYCODE_BUTTON_6,
+ INPUT_USAGE_KEYCODE_BUTTON_7,
+ INPUT_USAGE_KEYCODE_BUTTON_8,
+ INPUT_USAGE_KEYCODE_BUTTON_9,
+ INPUT_USAGE_KEYCODE_BUTTON_10,
+ INPUT_USAGE_KEYCODE_BUTTON_11,
+ INPUT_USAGE_KEYCODE_BUTTON_12,
+ INPUT_USAGE_KEYCODE_BUTTON_13,
+ INPUT_USAGE_KEYCODE_BUTTON_14,
+ INPUT_USAGE_KEYCODE_BUTTON_15,
+ INPUT_USAGE_KEYCODE_BUTTON_16,
+ INPUT_USAGE_KEYCODE_LANGUAGE_SWITCH,
+ INPUT_USAGE_KEYCODE_MANNER_MODE,
+ INPUT_USAGE_KEYCODE_3D_MODE,
+ INPUT_USAGE_KEYCODE_CONTACTS,
+ INPUT_USAGE_KEYCODE_CALENDAR,
+ INPUT_USAGE_KEYCODE_MUSIC,
+ INPUT_USAGE_KEYCODE_CALCULATOR,
+ INPUT_USAGE_KEYCODE_ZENKAKU_HANKAKU,
+ INPUT_USAGE_KEYCODE_EISU,
+ INPUT_USAGE_KEYCODE_MUHENKAN,
+ INPUT_USAGE_KEYCODE_HENKAN,
+ INPUT_USAGE_KEYCODE_KATAKANA_HIRAGANA,
+ INPUT_USAGE_KEYCODE_YEN,
+ INPUT_USAGE_KEYCODE_RO,
+ INPUT_USAGE_KEYCODE_KANA,
+ INPUT_USAGE_KEYCODE_ASSIST,
+ INPUT_USAGE_KEYCODE_BRIGHTNESS_DOWN,
+ INPUT_USAGE_KEYCODE_BRIGHTNESS_UP,
+ INPUT_USAGE_KEYCODE_MEDIA_AUDIO_TRACK,
+ INPUT_USAGE_KEYCODE_SLEEP,
+ INPUT_USAGE_KEYCODE_WAKEUP,
+ INPUT_USAGE_KEYCODE_PAIRING,
+ INPUT_USAGE_KEYCODE_MEDIA_TOP_MENU,
+ INPUT_USAGE_KEYCODE_11,
+ INPUT_USAGE_KEYCODE_12,
+ INPUT_USAGE_KEYCODE_LAST_CHANNEL,
+ INPUT_USAGE_KEYCODE_TV_DATA_SERVICE,
+ INPUT_USAGE_KEYCODE_VOICE_ASSIST,
+ INPUT_USAGE_KEYCODE_TV_RADIO_SERVICE,
+ INPUT_USAGE_KEYCODE_TV_TELETEXT,
+ INPUT_USAGE_KEYCODE_TV_NUMBER_ENTRY,
+ INPUT_USAGE_KEYCODE_TV_TERRESTRIAL_ANALOG,
+ INPUT_USAGE_KEYCODE_TV_TERRESTRIAL_DIGITAL,
+ INPUT_USAGE_KEYCODE_TV_SATELLITE,
+ INPUT_USAGE_KEYCODE_TV_SATELLITE_BS,
+ INPUT_USAGE_KEYCODE_TV_SATELLITE_CS,
+ INPUT_USAGE_KEYCODE_TV_SATELLITE_SERVICE,
+ INPUT_USAGE_KEYCODE_TV_NETWORK,
+ INPUT_USAGE_KEYCODE_TV_ANTENNA_CABLE,
+ INPUT_USAGE_KEYCODE_TV_INPUT_HDMI_1,
+ INPUT_USAGE_KEYCODE_TV_INPUT_HDMI_2,
+ INPUT_USAGE_KEYCODE_TV_INPUT_HDMI_3,
+ INPUT_USAGE_KEYCODE_TV_INPUT_HDMI_4,
+ INPUT_USAGE_KEYCODE_TV_INPUT_COMPOSITE_1,
+ INPUT_USAGE_KEYCODE_TV_INPUT_COMPOSITE_2,
+ INPUT_USAGE_KEYCODE_TV_INPUT_COMPONENT_1,
+ INPUT_USAGE_KEYCODE_TV_INPUT_COMPONENT_2,
+ INPUT_USAGE_KEYCODE_TV_INPUT_VGA_1,
+ INPUT_USAGE_KEYCODE_TV_AUDIO_DESCRIPTION,
+ INPUT_USAGE_KEYCODE_TV_AUDIO_DESCRIPTION_MIX_UP,
+ INPUT_USAGE_KEYCODE_TV_AUDIO_DESCRIPTION_MIX_DOWN,
+ INPUT_USAGE_KEYCODE_TV_ZOOM_MODE,
+ INPUT_USAGE_KEYCODE_TV_CONTENTS_MENU,
+ INPUT_USAGE_KEYCODE_TV_MEDIA_CONTEXT_MENU,
+ INPUT_USAGE_KEYCODE_TV_TIMER_PROGRAMMING,
+ INPUT_USAGE_KEYCODE_HELP,
+
+ // axes
+ INPUT_USAGE_AXIS_X,
+ INPUT_USAGE_AXIS_Y,
+ INPUT_USAGE_AXIS_PRESSURE,
+ INPUT_USAGE_AXIS_SIZE,
+ INPUT_USAGE_AXIS_TOUCH_MAJOR,
+ INPUT_USAGE_AXIS_TOUCH_MINOR,
+ INPUT_USAGE_AXIS_TOOL_MAJOR,
+ INPUT_USAGE_AXIS_TOOL_MINOR,
+ INPUT_USAGE_AXIS_ORIENTATION,
+ INPUT_USAGE_AXIS_VSCROLL,
+ INPUT_USAGE_AXIS_HSCROLL,
+ INPUT_USAGE_AXIS_Z,
+ INPUT_USAGE_AXIS_RX,
+ INPUT_USAGE_AXIS_RY,
+ INPUT_USAGE_AXIS_RZ,
+ INPUT_USAGE_AXIS_HAT_X,
+ INPUT_USAGE_AXIS_HAT_Y,
+ INPUT_USAGE_AXIS_LTRIGGER,
+ INPUT_USAGE_AXIS_RTRIGGER,
+ INPUT_USAGE_AXIS_THROTTLE,
+ INPUT_USAGE_AXIS_RUDDER,
+ INPUT_USAGE_AXIS_WHEEL,
+ INPUT_USAGE_AXIS_GAS,
+ INPUT_USAGE_AXIS_BRAKE,
+ INPUT_USAGE_AXIS_DISTANCE,
+ INPUT_USAGE_AXIS_TILT,
+ INPUT_USAGE_AXIS_GENERIC_1,
+ INPUT_USAGE_AXIS_GENERIC_2,
+ INPUT_USAGE_AXIS_GENERIC_3,
+ INPUT_USAGE_AXIS_GENERIC_4,
+ INPUT_USAGE_AXIS_GENERIC_5,
+ INPUT_USAGE_AXIS_GENERIC_6,
+ INPUT_USAGE_AXIS_GENERIC_7,
+ INPUT_USAGE_AXIS_GENERIC_8,
+ INPUT_USAGE_AXIS_GENERIC_9,
+ INPUT_USAGE_AXIS_GENERIC_10,
+ INPUT_USAGE_AXIS_GENERIC_11,
+ INPUT_USAGE_AXIS_GENERIC_12,
+ INPUT_USAGE_AXIS_GENERIC_13,
+ INPUT_USAGE_AXIS_GENERIC_14,
+ INPUT_USAGE_AXIS_GENERIC_15,
+ INPUT_USAGE_AXIS_GENERIC_16,
+
+ // leds
+ INPUT_USAGE_LED_NUM_LOCK,
+ INPUT_USAGE_LED_CAPS_LOCK,
+ INPUT_USAGE_LED_SCROLL_LOCK,
+ INPUT_USAGE_LED_COMPOSE,
+ INPUT_USAGE_LED_KANA,
+ INPUT_USAGE_LED_SLEEP,
+ INPUT_USAGE_LED_SUSPEND,
+ INPUT_USAGE_LED_MUTE,
+ INPUT_USAGE_LED_MISC,
+ INPUT_USAGE_LED_MAIL,
+ INPUT_USAGE_LED_CHARGING,
+ INPUT_USAGE_LED_CONTROLLER_1,
+ INPUT_USAGE_LED_CONTROLLER_2,
+ INPUT_USAGE_LED_CONTROLLER_3,
+ INPUT_USAGE_LED_CONTROLLER_4,
+} input_usage_t;
+
+typedef enum {
+ INPUT_COLLECTION_ID_TOUCH,
+ INPUT_COLLECTION_ID_KEYBOARD,
+ INPUT_COLLECTION_ID_MOUSE,
+ INPUT_COLLECTION_ID_TOUCHPAD,
+ // etc
+} input_collection_id_t;
+
+typedef struct input_message input_message_t;
+
+typedef struct input_host_callbacks {
+
+ /**
+ * Creates a device identifier with the given properties.
+ * The unique ID should be a string that precisely identifies a given piece of hardware. For
+ * example, an input device connected via Bluetooth could use its MAC address as its unique ID.
+ */
+ input_device_identifier_t* (*create_device_identifier)(input_host_t* host,
+ const char* name, int32_t product_id, int32_t vendor_id,
+ input_bus_t bus, const char* unique_id);
+
+ /**
+ * Allocates the device definition which will describe the input capabilities of a device. A
+ * device definition may be used to register as many devices as desired.
+ */
+ input_device_definition_t* (*create_device_definition)(input_host_t* host);
+
+ /**
+ * Allocate either an input report, which the HAL will use to tell the host of incoming input
+ * events, or an output report, which the host will use to tell the HAL of desired state
+ * changes (e.g. setting an LED).
+ */
+ input_report_definition_t* (*create_input_report_definition)(input_host_t* host);
+ input_report_definition_t* (*create_output_report_definition)(input_host_t* host);
+
+ /**
+ * Append the report to the given input device.
+ */
+ void (*input_device_definition_add_report)(input_host_t* host,
+ input_device_definition_t* d, input_report_definition_t* r);
+
+ /**
+ * Add a collection with the given arity and ID. A collection describes a set
+ * of logically grouped properties such as the X and Y coordinates of a single finger touch or
+ * the set of keys on a keyboard. The arity declares how many repeated instances of this
+ * collection will appear in whatever report it is attached to. The ID describes the type of
+ * grouping being represented by the collection. For example, a touchscreen capable of
+ * reporting up to 2 fingers simultaneously might have a collection with the X and Y
+ * coordinates, an arity of 2, and an ID of INPUT_COLLECTION_USAGE_TOUCHSCREEN. Any given ID
+ * may only be present once for a given report.
+ */
+ void (*input_report_definition_add_collection)(input_host_t* host,
+ input_report_definition_t* report, input_collection_id_t id, int32_t arity);
+
+ /**
+ * Declare an int usage with the given properties. The report and collection defines where the
+ * usage is being declared.
+ */
+ void (*input_report_definition_declare_usage_int)(input_host_t* host,
+ input_report_definition_t* report, input_collection_id_t id,
+ input_usage_t usage, int32_t min, int32_t max, float resolution);
+
+ /**
+ * Declare a set of boolean usages with the given properties. The report and collection
+ * defines where the usages are being declared.
+ */
+ void (*input_report_definition_declare_usages_bool)(input_host_t* host,
+ input_report_definition_t* report, input_collection_id_t id,
+ input_usage_t* usage, size_t usage_count);
+
+
+ /**
+ * Register a given input device definition. This notifies the host that an input device has
+ * been connected and gives a description of all its capabilities.
+ */
+ input_device_handle_t* (*register_device)(input_host_t* host,
+ input_device_identifier_t* id, input_device_definition_t* d);
+
+ /** Unregister the given device */
+ void (*unregister_device)(input_host_t* host, input_device_handle_t* handle);
+
+ /**
+ * Allocate a report that will contain all of the state as described by the given report.
+ */
+ input_report_t* (*input_allocate_report)(input_host_t* host, input_report_definition_t* r);
+
+ /**
+ * Add an int usage value to a report.
+ */
+ void (*input_report_set_usage_int)(input_host_t* host, input_report_t* r,
+ input_collection_id_t id, input_usage_t usage, int32_t value, int32_t arity_index);
+
+ /**
+ * Add a boolean usage value to a report.
+ */
+ void (*input_report_set_usage_bool)(input_host_t* host, input_report_t* r,
+ input_collection_id_t id, input_usage_t usage, bool value, int32_t arity_index);
+
+ void (*report_event)(input_host_t* host, input_device_handle_t* d, input_report_t* report);
+
+ /**
+ * Retrieve the set of properties for the device. The returned
+ * input_property_map_t* may be used to query specific properties via the
+ * input_get_device_property callback.
+ */
+ input_property_map_t* (*input_get_device_property_map)(input_host_t* host,
+ input_device_identifier_t* id);
+ /**
+ * Retrieve a property for the device with the given key. Returns NULL if
+ * the key does not exist, or an input_property_t* that must be freed using
+ * input_free_device_property(). Using an input_property_t after the
+ * corresponding input_property_map_t is freed is undefined.
+ */
+ input_property_t* (*input_get_device_property)(input_host_t* host,
+ input_property_map_t* map, const char* key);
+
+ /**
+ * Get the key for the input property. Returns NULL if the property is NULL.
+ * The returned const char* is owned by the input_property_t.
+ */
+ const char* (*input_get_property_key)(input_host_t* host, input_property_t* property);
+
+ /**
+ * Get the value for the input property. Returns NULL if the property is
+ * NULL. The returned const char* is owned by the input_property_t.
+ */
+ const char* (*input_get_property_value)(input_host_t* host, input_property_t* property);
+
+ /**
+ * Frees the input_property_t*.
+ */
+ void (*input_free_device_property)(input_host_t* host, input_property_t* property);
+
+ /**
+ * Frees the input_property_map_t*.
+ */
+ void (*input_free_device_property_map)(input_host_t* host, input_property_map_t* map);
+} input_host_callbacks_t;
+
+typedef struct input_module input_module_t;
+
+struct input_module {
+ /**
+ * Common methods of the input module. This *must* be the first member
+ * of input_module as users of this structure will cast a hw_module_t
+ * to input_module pointer in contexts where it's known
+ * the hw_module_t references a input_module.
+ */
+ struct hw_module_t common;
+
+ /**
+ * Initialize the module with host callbacks. At this point the HAL should start up whatever
+ * infrastructure it needs to in order to process input events.
+ */
+ void (*init)(const input_module_t* module, input_host_t* host, input_host_callbacks_t cb);
+
+ /**
+ * Sends an output report with a new set of state the host would like the given device to
+ * assume.
+ */
+ void (*notify_report)(const input_module_t* module, input_report_t* report);
+};
+
+static inline int input_open(const struct hw_module_t** module, const char* type) {
+ return hw_get_module_by_class(INPUT_HARDWARE_MODULE_ID, type, module);
+}
+
+__END_DECLS
+
+#endif /* ANDROID_INCLUDE_HARDWARE_INPUT_H */
diff --git a/libhardware/include/hardware/keymaster0.h b/libhardware/include/hardware/keymaster0.h
new file mode 100644
index 0000000..f020e5b
--- /dev/null
+++ b/libhardware/include/hardware/keymaster0.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_KEYMASTER_0_H
+#define ANDROID_HARDWARE_KEYMASTER_0_H
+
+#include <hardware/keymaster_common.h>
+
+__BEGIN_DECLS
+
+/**
+ * Keymaster0 device definition.
+ */
+struct keymaster0_device {
+ /**
+ * Common methods of the keymaster device. This *must* be the first member of
+ * keymaster0_device as users of this structure will cast a hw_device_t to
+ * keymaster0_device pointer in contexts where it's known the hw_device_t references a
+ * keymaster0_device.
+ */
+ struct hw_device_t common;
+
+ /**
+ * THIS IS DEPRECATED. Use the new "module_api_version" and "hal_api_version"
+ * fields in the keymaster_module initialization instead.
+ */
+ uint32_t client_version;
+
+ /**
+ * See flags defined for keymaster0_device::flags in keymaster_common.h
+ */
+ uint32_t flags;
+
+ void* context;
+
+ /**
+ * Generates a public and private key. The key-blob returned is opaque
+ * and must subsequently provided for signing and verification.
+ *
+ * Returns: 0 on success or an error code less than 0.
+ */
+ int (*generate_keypair)(const struct keymaster0_device* dev,
+ const keymaster_keypair_t key_type, const void* key_params,
+ uint8_t** key_blob, size_t* key_blob_length);
+
+ /**
+ * Imports a public and private key pair. The imported keys will be in
+ * PKCS#8 format with DER encoding (Java standard). The key-blob
+ * returned is opaque and will be subsequently provided for signing
+ * and verification.
+ *
+ * Returns: 0 on success or an error code less than 0.
+ */
+ int (*import_keypair)(const struct keymaster0_device* dev,
+ const uint8_t* key, const size_t key_length,
+ uint8_t** key_blob, size_t* key_blob_length);
+
+ /**
+ * Gets the public key part of a key pair. The public key must be in
+ * X.509 format (Java standard) encoded byte array.
+ *
+ * Returns: 0 on success or an error code less than 0.
+ * On error, x509_data should not be allocated.
+ */
+ int (*get_keypair_public)(const struct keymaster0_device* dev,
+ const uint8_t* key_blob, const size_t key_blob_length,
+ uint8_t** x509_data, size_t* x509_data_length);
+
+ /**
+ * Deletes the key pair associated with the key blob.
+ *
+ * This function is optional and should be set to NULL if it is not
+ * implemented.
+ *
+ * Returns 0 on success or an error code less than 0.
+ */
+ int (*delete_keypair)(const struct keymaster0_device* dev,
+ const uint8_t* key_blob, const size_t key_blob_length);
+
+ /**
+ * Deletes all keys in the hardware keystore. Used when keystore is
+ * reset completely.
+ *
+ * This function is optional and should be set to NULL if it is not
+ * implemented.
+ *
+ * Returns 0 on success or an error code less than 0.
+ */
+ int (*delete_all)(const struct keymaster0_device* dev);
+
+ /**
+ * Signs data using a key-blob generated before. This can use either
+ * an asymmetric key or a secret key.
+ *
+ * Returns: 0 on success or an error code less than 0.
+ */
+ int (*sign_data)(const struct keymaster0_device* dev,
+ const void* signing_params,
+ const uint8_t* key_blob, const size_t key_blob_length,
+ const uint8_t* data, const size_t data_length,
+ uint8_t** signed_data, size_t* signed_data_length);
+
+ /**
+ * Verifies data signed with a key-blob. This can use either
+ * an asymmetric key or a secret key.
+ *
+ * Returns: 0 on successful verification or an error code less than 0.
+ */
+ int (*verify_data)(const struct keymaster0_device* dev,
+ const void* signing_params,
+ const uint8_t* key_blob, const size_t key_blob_length,
+ const uint8_t* signed_data, const size_t signed_data_length,
+ const uint8_t* signature, const size_t signature_length);
+};
+typedef struct keymaster0_device keymaster0_device_t;
+
+
+/* Convenience API for opening and closing keymaster devices */
+
+static inline int keymaster0_open(const struct hw_module_t* module,
+ keymaster0_device_t** device)
+{
+ int rc = module->methods->open(module, KEYSTORE_KEYMASTER,
+ (struct hw_device_t**) device);
+
+ return rc;
+}
+
+static inline int keymaster0_close(keymaster0_device_t* device)
+{
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_HARDWARE_KEYMASTER_0_H
diff --git a/libhardware/include/hardware/keymaster1.h b/libhardware/include/hardware/keymaster1.h
new file mode 100644
index 0000000..afd202c
--- /dev/null
+++ b/libhardware/include/hardware/keymaster1.h
@@ -0,0 +1,548 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_KEYMASTER1_H
+#define ANDROID_HARDWARE_KEYMASTER1_H
+
+#include <hardware/keymaster_common.h>
+#include <hardware/keymaster_defs.h>
+
+__BEGIN_DECLS
+
+/**
+ * Keymaster1 device definition
+ */
+struct keymaster1_device {
+ /**
+ * Common methods of the keymaster device. This *must* be the first member of
+ * keymaster_device as users of this structure will cast a hw_device_t to
+ * keymaster_device pointer in contexts where it's known the hw_device_t references a
+ * keymaster_device.
+ */
+ struct hw_device_t common;
+
+ /**
+ * THIS IS DEPRECATED. Use the new "module_api_version" and "hal_api_version"
+ * fields in the keymaster_module initialization instead.
+ */
+ uint32_t client_version;
+
+ /**
+ * See flags defined for keymaster0_devices::flags in keymaster_common.h
+ */
+ uint32_t flags;
+
+ void* context;
+
+ /**
+ * \deprecated Generates a public and private key. The key-blob returned is opaque and must
+ * subsequently provided for signing and verification.
+ *
+ * Returns: 0 on success or an error code less than 0.
+ */
+ int (*generate_keypair)(const struct keymaster1_device* dev, const keymaster_keypair_t key_type,
+ const void* key_params, uint8_t** key_blob, size_t* key_blob_length);
+
+ /**
+ * \deprecated Imports a public and private key pair. The imported keys will be in PKCS#8 format
+ * with DER encoding (Java standard). The key-blob returned is opaque and will be subsequently
+ * provided for signing and verification.
+ *
+ * Returns: 0 on success or an error code less than 0.
+ */
+ int (*import_keypair)(const struct keymaster1_device* dev, const uint8_t* key,
+ const size_t key_length, uint8_t** key_blob, size_t* key_blob_length);
+
+ /**
+ * \deprecated Gets the public key part of a key pair. The public key must be in X.509 format
+ * (Java standard) encoded byte array.
+ *
+ * Returns: 0 on success or an error code less than 0. On error, x509_data
+ * should not be allocated.
+ */
+ int (*get_keypair_public)(const struct keymaster1_device* dev, const uint8_t* key_blob,
+ const size_t key_blob_length, uint8_t** x509_data,
+ size_t* x509_data_length);
+
+ /**
+ * \deprecated Deletes the key pair associated with the key blob.
+ *
+ * This function is optional and should be set to NULL if it is not
+ * implemented.
+ *
+ * Returns 0 on success or an error code less than 0.
+ */
+ int (*delete_keypair)(const struct keymaster1_device* dev, const uint8_t* key_blob,
+ const size_t key_blob_length);
+
+ /**
+ * \deprecated Deletes all keys in the hardware keystore. Used when keystore is reset
+ * completely.
+ *
+ * This function is optional and should be set to NULL if it is not
+ * implemented.
+ *
+ * Returns 0 on success or an error code less than 0.
+ */
+ int (*delete_all)(const struct keymaster1_device* dev);
+
+ /**
+ * \deprecated Signs data using a key-blob generated before. This can use either an asymmetric
+ * key or a secret key.
+ *
+ * Returns: 0 on success or an error code less than 0.
+ */
+ int (*sign_data)(const struct keymaster1_device* dev, const void* signing_params,
+ const uint8_t* key_blob, const size_t key_blob_length, const uint8_t* data,
+ const size_t data_length, uint8_t** signed_data, size_t* signed_data_length);
+
+ /**
+ * \deprecated Verifies data signed with a key-blob. This can use either an asymmetric key or a
+ * secret key.
+ *
+ * Returns: 0 on successful verification or an error code less than 0.
+ */
+ int (*verify_data)(const struct keymaster1_device* dev, const void* signing_params,
+ const uint8_t* key_blob, const size_t key_blob_length,
+ const uint8_t* signed_data, const size_t signed_data_length,
+ const uint8_t* signature, const size_t signature_length);
+
+ /**
+ * Gets algorithms supported.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[out] algorithms Array of algorithms supported. The caller takes ownership of the
+ * array and must free() it.
+ *
+ * \param[out] algorithms_length Length of \p algorithms.
+ */
+ keymaster_error_t (*get_supported_algorithms)(const struct keymaster1_device* dev,
+ keymaster_algorithm_t** algorithms,
+ size_t* algorithms_length);
+
+ /**
+ * Gets the block modes supported for the specified algorithm.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] algorithm The algorithm for which supported modes will be returned.
+ *
+ * \param[out] modes Array of modes supported. The caller takes ownership of the array and must
+ * free() it.
+ *
+ * \param[out] modes_length Length of \p modes.
+ */
+ keymaster_error_t (*get_supported_block_modes)(const struct keymaster1_device* dev,
+ keymaster_algorithm_t algorithm,
+ keymaster_purpose_t purpose,
+ keymaster_block_mode_t** modes,
+ size_t* modes_length);
+
+ /**
+ * Gets the padding modes supported for the specified algorithm. Caller assumes ownership of
+ * the allocated array.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] algorithm The algorithm for which supported padding modes will be returned.
+ *
+ * \param[out] modes Array of padding modes supported. The caller takes ownership of the array
+ * and must free() it.
+ *
+ * \param[out] modes_length Length of \p modes.
+ */
+ keymaster_error_t (*get_supported_padding_modes)(const struct keymaster1_device* dev,
+ keymaster_algorithm_t algorithm,
+ keymaster_purpose_t purpose,
+ keymaster_padding_t** modes,
+ size_t* modes_length);
+
+ /**
+ * Gets the digests supported for the specified algorithm. Caller assumes ownership of the
+ * allocated array.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] algorithm The algorithm for which supported digests will be returned.
+ *
+ * \param[out] digests Array of digests supported. The caller takes ownership of the array and
+ * must free() it.
+ *
+ * \param[out] digests_length Length of \p digests.
+ */
+ keymaster_error_t (*get_supported_digests)(const struct keymaster1_device* dev,
+ keymaster_algorithm_t algorithm,
+ keymaster_purpose_t purpose,
+ keymaster_digest_t** digests,
+ size_t* digests_length);
+
+ /**
+ * Gets the key import formats supported for keys of the specified algorithm. Caller assumes
+ * ownership of the allocated array.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] algorithm The algorithm for which supported formats will be returned.
+ *
+ * \param[out] formats Array of formats supported. The caller takes ownership of the array and
+ * must free() it.
+ *
+ * \param[out] formats_length Length of \p formats.
+ */
+ keymaster_error_t (*get_supported_import_formats)(const struct keymaster1_device* dev,
+ keymaster_algorithm_t algorithm,
+ keymaster_key_format_t** formats,
+ size_t* formats_length);
+
+ /**
+ * Gets the key export formats supported for keys of the specified algorithm. Caller assumes
+ * ownership of the allocated array.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] algorithm The algorithm for which supported formats will be returned.
+ *
+ * \param[out] formats Array of formats supported. The caller takes ownership of the array and
+ * must free() it.
+ *
+ * \param[out] formats_length Length of \p formats.
+ */
+ keymaster_error_t (*get_supported_export_formats)(const struct keymaster1_device* dev,
+ keymaster_algorithm_t algorithm,
+ keymaster_key_format_t** formats,
+ size_t* formats_length);
+
+ /**
+ * Adds entropy to the RNG used by keymaster. Entropy added through this method is guaranteed
+ * not to be the only source of entropy used, and the mixing function is required to be secure,
+ * in the sense that if the RNG is seeded (from any source) with any data the attacker cannot
+ * predict (or control), then the RNG output is indistinguishable from random. Thus, if the
+ * entropy from any source is good, the output will be good.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] data Random data to be mixed in.
+ *
+ * \param[in] data_length Length of \p data.
+ */
+ keymaster_error_t (*add_rng_entropy)(const struct keymaster1_device* dev, const uint8_t* data,
+ size_t data_length);
+
+ /**
+ * Generates a key, or key pair, returning a key blob and/or a description of the key.
+ *
+ * Key generation parameters are defined as keymaster tag/value pairs, provided in \p params.
+ * See keymaster_tag_t for the full list. Some values that are always required for generation
+ * of useful keys are:
+ *
+ * - KM_TAG_ALGORITHM;
+ * - KM_TAG_PURPOSE; and
+ * - (KM_TAG_USER_SECURE_ID and KM_TAG_USER_AUTH_TYPE) or KM_TAG_NO_AUTH_REQUIRED.
+ *
+ * KM_TAG_AUTH_TIMEOUT should generally be specified unless KM_TAG_NO_AUTH_REQUIRED is present,
+ * or the user will have to authenticate for every use.
+ *
+ * KM_TAG_BLOCK_MODE, KM_TAG_PADDING, KM_TAG_MAC_LENGTH and KM_TAG_DIGEST must be specified for
+ * algorithms that require them.
+ *
+ * The following tags may not be specified; their values will be provided by the implementation.
+ *
+ * - KM_TAG_ORIGIN,
+ * - KM_TAG_ROLLBACK_RESISTANT,
+ * - KM_TAG_CREATION_DATETIME
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] params Array of key generation parameters.
+ *
+ * \param[in] params_count Length of \p params.
+ *
+ * \param[out] key_blob returns the generated key. \p key_blob must not be NULL. The caller
+ * assumes ownership key_blob->key_material and must free() it.
+ *
+ * \param[out] characteristics returns the characteristics of the key that was, generated, if
+ * non-NULL. If non-NULL, the caller assumes ownership and must deallocate with
+ * keymaster_free_characteristics(). Note that KM_TAG_ROOT_OF_TRUST, KM_TAG_APPLICATION_ID and
+ * KM_TAG_APPLICATION_DATA are never returned.
+ */
+ keymaster_error_t (*generate_key)(const struct keymaster1_device* dev,
+ const keymaster_key_param_set_t* params,
+ keymaster_key_blob_t* key_blob,
+ keymaster_key_characteristics_t** characteristics);
+
+ /**
+ * Returns the characteristics of the specified key, or KM_ERROR_INVALID_KEY_BLOB if the
+ * key_blob is invalid (implementations must fully validate the integrity of the key).
+ * client_id and app_data must be the ID and data provided when the key was generated or
+ * imported, or empty if KM_TAG_APPLICATION_ID and/or KM_TAG_APPLICATION_DATA were not provided
+ * during generation. Those values are not included in the returned characteristics. The
+ * caller assumes ownership of the allocated characteristics object, which must be deallocated
+ * with keymaster_free_characteristics().
+ *
+ * Note that KM_TAG_ROOT_OF_TRUST, KM_TAG_APPLICATION_ID and KM_TAG_APPLICATION_DATA are never
+ * returned.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] key_blob The key to retreive characteristics from.
+ *
+ * \param[in] client_id The client ID data, or NULL if none associated.
+ *
+ * \param[in] app_id The app data, or NULL if none associated.
+ *
+ * \param[out] characteristics The key characteristics.
+ */
+ keymaster_error_t (*get_key_characteristics)(const struct keymaster1_device* dev,
+ const keymaster_key_blob_t* key_blob,
+ const keymaster_blob_t* client_id,
+ const keymaster_blob_t* app_data,
+ keymaster_key_characteristics_t** characteristics);
+
+ /**
+ * Imports a key, or key pair, returning a key blob and/or a description of the key.
+ *
+ * Most key import parameters are defined as keymaster tag/value pairs, provided in "params".
+ * See keymaster_tag_t for the full list. Values that are always required for import of useful
+ * keys are:
+ *
+ * - KM_TAG_ALGORITHM;
+ * - KM_TAG_PURPOSE; and
+ * - (KM_TAG_USER_SECURE_ID and KM_TAG_USER_AUTH_TYPE) or KM_TAG_NO_AUTH_REQUIRED.
+ *
+ * KM_TAG_AUTH_TIMEOUT should generally be specified. If unspecified, the user will have to
+ * authenticate for every use.
+ *
+ * The following tags will take default values if unspecified:
+ *
+ * - KM_TAG_KEY_SIZE will default to the size of the key provided.
+ * - KM_TAG_RSA_PUBLIC_EXPONENT will default to the value in the key provided (for RSA keys)
+ *
+ * The following tags may not be specified; their values will be provided by the implementation.
+ *
+ * - KM_TAG_ORIGIN,
+ * - KM_TAG_ROLLBACK_RESISTANT,
+ * - KM_TAG_CREATION_DATETIME
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] params Parameters defining the imported key.
+ *
+ * \param[in] params_count The number of entries in \p params.
+ *
+ * \param[in] key_format specifies the format of the key data in key_data.
+ *
+ * \param[out] key_blob Used to return the opaque key blob. Must be non-NULL. The caller
+ * assumes ownership of the contained key_material.
+ *
+ * \param[out] characteristics Used to return the characteristics of the imported key. May be
+ * NULL, in which case no characteristics will be returned. If non-NULL, the caller assumes
+ * ownership and must deallocate with keymaster_free_characteristics(). Note that
+ * KM_TAG_ROOT_OF_TRUST, KM_TAG_APPLICATION_ID and
+ * KM_TAG_APPLICATION_DATA are never returned.
+ */
+ keymaster_error_t (*import_key)(const struct keymaster1_device* dev,
+ const keymaster_key_param_set_t* params,
+ keymaster_key_format_t key_format,
+ const keymaster_blob_t* key_data,
+ keymaster_key_blob_t* key_blob,
+ keymaster_key_characteristics_t** characteristics);
+
+ /**
+ * Exports a public key, returning a byte array in the specified format.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] export_format The format to be used for exporting the key.
+ *
+ * \param[in] key_to_export The key to export.
+ *
+ * \param[out] export_data The exported key material. The caller assumes ownership.
+ *
+ * \param[out] export_data_length The length of \p export_data.
+ */
+ keymaster_error_t (*export_key)(const struct keymaster1_device* dev,
+ keymaster_key_format_t export_format,
+ const keymaster_key_blob_t* key_to_export,
+ const keymaster_blob_t* client_id,
+ const keymaster_blob_t* app_data,
+ keymaster_blob_t* export_data);
+
+ /**
+ * Deletes the key, or key pair, associated with the key blob. After calling this function it
+ * will be impossible to use the key for any other operations. May be applied to keys from
+ * foreign roots of trust (keys not usable under the current root of trust).
+ *
+ * This function is optional and should be set to NULL if it is not implemented.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] key The key to be deleted.
+ */
+ keymaster_error_t (*delete_key)(const struct keymaster1_device* dev,
+ const keymaster_key_blob_t* key);
+
+ /**
+ * Deletes all keys in the hardware keystore. Used when keystore is reset completely. After
+ * calling this function it will be impossible to use any previously generated or imported key
+ * blobs for any operations.
+ *
+ * This function is optional and should be set to NULL if it is not implemented.
+ *
+ * \param[in] dev The keymaster device structure.
+ */
+ keymaster_error_t (*delete_all_keys)(const struct keymaster1_device* dev);
+
+ /**
+ * Begins a cryptographic operation using the specified key. If all is well, begin() will
+ * return KM_ERROR_OK and create an operation handle which must be passed to subsequent calls to
+ * update(), finish() or abort().
+ *
+ * It is critical that each call to begin() be paired with a subsequent call to finish() or
+ * abort(), to allow the keymaster implementation to clean up any internal operation state.
+ * Failure to do this may leak internal state space or other internal resources and may
+ * eventually cause begin() to return KM_ERROR_TOO_MANY_OPERATIONS when it runs out of space for
+ * operations. Any result other than KM_ERROR_OK from begin(), update() or finish() implicitly
+ * aborts the operation, in which case abort() need not be called (and will return
+ * KM_ERROR_INVALID_OPERATION_HANDLE if called).
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] purpose The purpose of the operation, one of KM_PURPOSE_ENCRYPT,
+ * KM_PURPOSE_DECRYPT, KM_PURPOSE_SIGN or KM_PURPOSE_VERIFY. Note that for AEAD modes,
+ * encryption and decryption imply signing and verification, respectively, but should be
+ * specified as KM_PURPOSE_ENCRYPT and KM_PURPOSE_DECRYPT.
+ *
+ * \param[in] key The key to be used for the operation. \p key must have a purpose compatible
+ * with \p purpose and all of its usage requirements must be satisfied, or begin() will return
+ * an appropriate error code.
+ *
+ * \param[in] in_params Additional parameters for the operation. This is typically used to
+ * provide authentication data, with KM_TAG_AUTH_TOKEN. If KM_TAG_APPLICATION_ID or
+ * KM_TAG_APPLICATION_DATA were provided during generation, they must be provided here, or the
+ * operation will fail with KM_ERROR_INVALID_KEY_BLOB. For operations that require a nonce or
+ * IV, on keys that were generated with KM_TAG_CALLER_NONCE, in_params may contain a tag
+ * KM_TAG_NONCE. For AEAD operations KM_TAG_CHUNK_SIZE is specified here.
+ *
+ * \param[out] out_params Output parameters. Used to return additional data from the operation
+ * initialization, notably to return the IV or nonce from operations that generate an IV or
+ * nonce. The caller takes ownership of the output parameters array and must free it with
+ * keymaster_free_param_set(). out_params may be set to NULL if no output parameters are
+ * expected. If out_params is NULL, and output paramaters are generated, begin() will return
+ * KM_ERROR_OUTPUT_PARAMETER_NULL.
+ *
+ * \param[out] operation_handle The newly-created operation handle which must be passed to
+ * update(), finish() or abort(). If operation_handle is NULL, begin() will return
+ * KM_ERROR_OUTPUT_PARAMETER_NULL.
+ */
+ keymaster_error_t (*begin)(const struct keymaster1_device* dev, keymaster_purpose_t purpose,
+ const keymaster_key_blob_t* key,
+ const keymaster_key_param_set_t* in_params,
+ keymaster_key_param_set_t* out_params,
+ keymaster_operation_handle_t* operation_handle);
+
+ /**
+ * Provides data to, and possibly receives output from, an ongoing cryptographic operation begun
+ * with begin().
+ *
+ * If operation_handle is invalid, update() will return KM_ERROR_INVALID_OPERATION_HANDLE.
+ *
+ * update() may not consume all of the data provided in the data buffer. update() will return
+ * the amount consumed in *data_consumed. The caller should provide the unconsumed data in a
+ * subsequent call.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] operation_handle The operation handle returned by begin().
+ *
+ * \param[in] in_params Additional parameters for the operation. For AEAD modes, this is used
+ * to specify KM_TAG_ADDITIONAL_DATA. Note that additional data may be provided in multiple
+ * calls to update(), but only until input data has been provided.
+ *
+ * \param[in] input Data to be processed, per the parameters established in the call to begin().
+ * Note that update() may or may not consume all of the data provided. See \p input_consumed.
+ *
+ * \param[out] input_consumed Amount of data that was consumed by update(). If this is less
+ * than the amount provided, the caller should provide the remainder in a subsequent call to
+ * update().
+ *
+ * \param[out] out_params Output parameters. Used to return additional data from the operation
+ * The caller takes ownership of the output parameters array and must free it with
+ * keymaster_free_param_set(). out_params may be set to NULL if no output parameters are
+ * expected. If out_params is NULL, and output paramaters are generated, begin() will return
+ * KM_ERROR_OUTPUT_PARAMETER_NULL.
+ *
+ * \param[out] output The output data, if any. The caller assumes ownership of the allocated
+ * buffer. output must not be NULL.
+ *
+ * Note that update() may not provide any output, in which case output->data_length will be
+ * zero, and output->data may be either NULL or zero-length (so the caller should always free()
+ * it).
+ */
+ keymaster_error_t (*update)(const struct keymaster1_device* dev,
+ keymaster_operation_handle_t operation_handle,
+ const keymaster_key_param_set_t* in_params,
+ const keymaster_blob_t* input, size_t* input_consumed,
+ keymaster_key_param_set_t* out_params, keymaster_blob_t* output);
+
+ /**
+ * Finalizes a cryptographic operation begun with begin() and invalidates \p operation_handle.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] operation_handle The operation handle returned by begin(). This handle will be
+ * invalidated.
+ *
+ * \param[in] params Additional parameters for the operation. For AEAD modes, this is used to
+ * specify KM_TAG_ADDITIONAL_DATA, but only if no input data was provided to update().
+ *
+ * \param[in] signature The signature to be verified if the purpose specified in the begin()
+ * call was KM_PURPOSE_VERIFY.
+ *
+ * \param[out] output The output data, if any. The caller assumes ownership of the allocated
+ * buffer.
+ *
+ * If the operation being finished is a signature verification or an AEAD-mode decryption and
+ * verification fails then finish() will return KM_ERROR_VERIFICATION_FAILED.
+ */
+ keymaster_error_t (*finish)(const struct keymaster1_device* dev,
+ keymaster_operation_handle_t operation_handle,
+ const keymaster_key_param_set_t* in_params,
+ const keymaster_blob_t* signature,
+ keymaster_key_param_set_t* out_params, keymaster_blob_t* output);
+
+ /**
+ * Aborts a cryptographic operation begun with begin(), freeing all internal resources and
+ * invalidating \p operation_handle.
+ */
+ keymaster_error_t (*abort)(const struct keymaster1_device* dev,
+ keymaster_operation_handle_t operation_handle);
+};
+typedef struct keymaster1_device keymaster1_device_t;
+
+/* Convenience API for opening and closing keymaster devices */
+
+static inline int keymaster1_open(const struct hw_module_t* module, keymaster1_device_t** device) {
+ return module->methods->open(module, KEYSTORE_KEYMASTER, (struct hw_device_t**)device);
+}
+
+static inline int keymaster1_close(keymaster1_device_t* device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_HARDWARE_KEYMASTER1_H
diff --git a/libhardware/include/hardware/keymaster2.h b/libhardware/include/hardware/keymaster2.h
new file mode 100644
index 0000000..dcde30e
--- /dev/null
+++ b/libhardware/include/hardware/keymaster2.h
@@ -0,0 +1,452 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_KEYMASTER2_H
+#define ANDROID_HARDWARE_KEYMASTER2_H
+
+#include <hardware/keymaster_common.h>
+#include <hardware/keymaster_defs.h>
+
+__BEGIN_DECLS
+
+/**
+ * Keymaster2 device definition
+ */
+struct keymaster2_device {
+ /**
+ * Common methods of the keymaster device. This *must* be the first member of
+ * keymaster_device as users of this structure will cast a hw_device_t to
+ * keymaster_device pointer in contexts where it's known the hw_device_t references a
+ * keymaster_device.
+ */
+ struct hw_device_t common;
+
+ void* context;
+
+ /**
+ * See flags defined for keymaster0_devices::flags in keymaster_common.h. Used only for
+ * backward compatibility; keymaster2 hardware devices must set this to zero.
+ */
+ uint32_t flags;
+
+ /**
+ * Adds entropy to the RNG used by keymaster. Entropy added through this method is guaranteed
+ * not to be the only source of entropy used, and the mixing function is required to be secure,
+ * in the sense that if the RNG is seeded (from any source) with any data the attacker cannot
+ * predict (or control), then the RNG output is indistinguishable from random. Thus, if the
+ * entropy from any source is good, the output will be good.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] data Random data to be mixed in.
+ *
+ * \param[in] data_length Length of \p data.
+ */
+ keymaster_error_t (*add_rng_entropy)(const struct keymaster2_device* dev, const uint8_t* data,
+ size_t data_length);
+
+ /**
+ * Generates a key, or key pair, returning a key blob and/or a description of the key.
+ *
+ * Key generation parameters are defined as keymaster tag/value pairs, provided in \p params.
+ * See keymaster_tag_t for the full list. Some values that are always required for generation
+ * of useful keys are:
+ *
+ * - KM_TAG_ALGORITHM;
+ * - KM_TAG_PURPOSE; and
+ * - (KM_TAG_USER_SECURE_ID and KM_TAG_USER_AUTH_TYPE) or KM_TAG_NO_AUTH_REQUIRED.
+ *
+ * KM_TAG_AUTH_TIMEOUT should generally be specified unless KM_TAG_NO_AUTH_REQUIRED is present,
+ * or the user will have to authenticate for every use.
+ *
+ * KM_TAG_BLOCK_MODE, KM_TAG_PADDING, KM_TAG_MAC_LENGTH and KM_TAG_DIGEST must be specified for
+ * algorithms that require them.
+ *
+ * The following tags may not be specified; their values will be provided by the implementation.
+ *
+ * - KM_TAG_ORIGIN,
+ * - KM_TAG_ROLLBACK_RESISTANT,
+ * - KM_TAG_CREATION_DATETIME
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] params Array of key generation param
+ *
+ * \param[out] key_blob returns the generated key. \p key_blob must not be NULL. The caller
+ * assumes ownership key_blob->key_material and must free() it.
+ *
+ * \param[out] characteristics returns the characteristics of the key that was, generated, if
+ * non-NULL. If non-NULL, the caller assumes ownership and must deallocate with
+ * keymaster_free_characteristics(). Note that KM_TAG_ROOT_OF_TRUST, KM_TAG_APPLICATION_ID and
+ * KM_TAG_APPLICATION_DATA are never returned.
+ */
+ keymaster_error_t (*generate_key)(const struct keymaster2_device* dev,
+ const keymaster_key_param_set_t* params,
+ keymaster_key_blob_t* key_blob,
+ keymaster_key_characteristics_t* characteristics);
+
+ /**
+ * Returns the characteristics of the specified key, or KM_ERROR_INVALID_KEY_BLOB if the
+ * key_blob is invalid (implementations must fully validate the integrity of the key).
+ * client_id and app_data must be the ID and data provided when the key was generated or
+ * imported, or empty if KM_TAG_APPLICATION_ID and/or KM_TAG_APPLICATION_DATA were not provided
+ * during generation. Those values are not included in the returned characteristics. The
+ * caller assumes ownership of the allocated characteristics object, which must be deallocated
+ * with keymaster_free_characteristics().
+ *
+ * Note that KM_TAG_APPLICATION_ID and KM_TAG_APPLICATION_DATA are never returned.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] key_blob The key to retreive characteristics from.
+ *
+ * \param[in] client_id The client ID data, or NULL if none associated.
+ *
+ * \param[in] app_id The app data, or NULL if none associated.
+ *
+ * \param[out] characteristics The key characteristics. Must not be NULL. The caller assumes
+ * ownership of the contents and must deallocate with keymaster_free_characteristics().
+ */
+ keymaster_error_t (*get_key_characteristics)(const struct keymaster2_device* dev,
+ const keymaster_key_blob_t* key_blob,
+ const keymaster_blob_t* client_id,
+ const keymaster_blob_t* app_data,
+ keymaster_key_characteristics_t* characteristics);
+
+ /**
+ * Imports a key, or key pair, returning a key blob and/or a description of the key.
+ *
+ * Most key import parameters are defined as keymaster tag/value pairs, provided in "params".
+ * See keymaster_tag_t for the full list. Values that are always required for import of useful
+ * keys are:
+ *
+ * - KM_TAG_ALGORITHM;
+ * - KM_TAG_PURPOSE; and
+ * - (KM_TAG_USER_SECURE_ID and KM_TAG_USER_AUTH_TYPE) or KM_TAG_NO_AUTH_REQUIRED.
+ *
+ * KM_TAG_AUTH_TIMEOUT should generally be specified. If unspecified, the user will have to
+ * authenticate for every use.
+ *
+ * The following tags will take default values if unspecified:
+ *
+ * - KM_TAG_KEY_SIZE will default to the size of the key provided.
+ * - KM_TAG_RSA_PUBLIC_EXPONENT will default to the value in the key provided (for RSA keys)
+ *
+ * The following tags may not be specified; their values will be provided by the implementation.
+ *
+ * - KM_TAG_ORIGIN,
+ * - KM_TAG_ROLLBACK_RESISTANT,
+ * - KM_TAG_CREATION_DATETIME
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] params Parameters defining the imported key.
+ *
+ * \param[in] params_count The number of entries in \p params.
+ *
+ * \param[in] key_format specifies the format of the key data in key_data.
+ *
+ * \param[out] key_blob Used to return the opaque key blob. Must be non-NULL. The caller
+ * assumes ownership of the contained key_material.
+ *
+ * \param[out] characteristics Used to return the characteristics of the imported key. May be
+ * NULL, in which case no characteristics will be returned. If non-NULL, the caller assumes
+ * ownership of the contents and must deallocate with keymaster_free_characteristics(). Note
+ * that KM_TAG_APPLICATION_ID and KM_TAG_APPLICATION_DATA are never returned.
+ */
+ keymaster_error_t (*import_key)(const struct keymaster2_device* dev,
+ const keymaster_key_param_set_t* params,
+ keymaster_key_format_t key_format,
+ const keymaster_blob_t* key_data,
+ keymaster_key_blob_t* key_blob,
+ keymaster_key_characteristics_t* characteristics);
+
+ /**
+ * Exports a public or symmetric key, returning a byte array in the specified format.
+ *
+ * Note that symmetric key export is allowed only if the key was created with KM_TAG_EXPORTABLE,
+ * and only if all of the requirements for key usage (e.g. authentication) are met.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] export_format The format to be used for exporting the key.
+ *
+ * \param[in] key_to_export The key to export.
+ *
+ * \param[in] client_id Client ID blob, which must match the blob provided in
+ * KM_TAG_APPLICATION_ID during key generation (if any).
+ *
+ * \param[in] app_data Appliation data blob, which must match the blob provided in
+ * KM_TAG_APPLICATION_DATA during key generation (if any).
+ *
+ * \param[out] export_data The exported key material. The caller assumes ownership.
+ */
+ keymaster_error_t (*export_key)(const struct keymaster2_device* dev,
+ keymaster_key_format_t export_format,
+ const keymaster_key_blob_t* key_to_export,
+ const keymaster_blob_t* client_id,
+ const keymaster_blob_t* app_data,
+ keymaster_blob_t* export_data);
+
+ /**
+ * Derives a shared secret key from \p key, which must be an EC key, and the public key found in
+ * /p other_key_certificate, an X.509 certificate containing a compatible EC public key. The
+ * derived key's characteristics are described in \p new_key_params, which must include
+ * algorithm (KM_TAG_ALGORITHM), key size (KM_TAG_KEY_SIZE) and KDF (KM_TAG_KDF) as well as
+ * other desired key characteristics. The resulting key material is not returned directly, but
+ * instead a new keymaster key is created and the associated blob returned in \p key_blob. If
+ * \p characteristics is non-NULL, the new key's characteristics are placed there.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] key The keymaster key to use for key agreement. This must be an EC key with the
+ * KM_PURPOSE_DERIVE_KEY purpose.
+ *
+ * \param[in] other_key_certificate An X.509 certificate or certificate fragment containing a
+ * SubjectPublicKey field containing an EC public key on the same curve as \p key.
+ *
+ * \param[in] new_key_params A set of parameters to define/describe the newly-derived symmetric
+ * key. The parameters will define how the key may be used. The set must include KM_TAG_KDF to
+ * specify how the raw agreed key bytes will be transformed to produce the key material.
+ *
+ * \param[out] key_blob The key blob containing the newly-derived key. The caller takes
+ * ownership of the returned blob.
+ *
+ * \param[out] characteristics. If non-null, will be used to return the characteristics of the
+ * new key blob, which will have KM_TAG_ORIGIN set to KM_ORIGIN_DERIVED. The caller takes
+ * ownership of the returned characteristics and must deallocate with
+ * keymaster_free_characteristics().
+ */
+ keymaster_error_t (*agree_key)(const struct keymaster2_device* dev,
+ const keymaster_key_blob_t* key,
+ const keymaster_blob_t* other_key_certificate,
+ const keymaster_key_param_set_t* new_key_params,
+ keymaster_key_blob_t* new_key_blob,
+ keymaster_key_characteristics_t* characteristics);
+
+ /**
+ * Generates a signed X.509 certificate chain attesting to the presence of \p key_to_attest in
+ * keymaster (TODO(swillden): Describe certificate contents in more detail). The certificate
+ * will contain an extension with OID 1.3.6.1.4.1.11129.2.1.17 and value defined in
+ * <TODO:swillden -- insert link here> which contains the key description.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] key_to_attest The keymaster key for which the attestation certificate will be
+ * generated.
+ *
+ * \param[in] attest_params Parameters defining how to do the attestation. At present the only
+ * parameter is KM_TAG_ALGORITHM, which must be either KM_ALGORITHM_EC or KM_ALGORITHM_RSA.
+ * This selects which of the provisioned attestation keys will be used to sign the certificate.
+ *
+ * \param[out] cert_chain An array of DER-encoded X.509 certificates. The first will be the
+ * certificate for \p key_to_attest. The remaining entries will chain back to the root. The
+ * caller takes ownership and must deallocate with keymaster_free_cert_chain.
+ */
+ keymaster_error_t (*attest_key)(const struct keymaster2_device* dev,
+ const keymaster_key_blob_t* key_to_attest,
+ const keymaster_key_param_set_t* attest_params,
+ keymaster_cert_chain_t* cert_chain);
+
+ /**
+ * Upgrades an old key. Keys can become "old" in two ways: Keymaster can be upgraded to a new
+ * version, or the system can be updated to invalidate the OS version and/or patch level. In
+ * either case, attempts to use an old key will result in keymaster returning
+ * KM_ERROR_KEY_REQUIRES_UPGRADE. This method should then be called to upgrade the key.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] key_to_upgrade The keymaster key to upgrade.
+ *
+ * \param[in] upgrade_params Parameters needed to complete the upgrade. In particular,
+ * KM_TAG_APPLICATION_ID and KM_TAG_APPLICATION_DATA will be required if they were defined for
+ * the key.
+ *
+ * \param[out] upgraded_key The upgraded key blob.
+ */
+ keymaster_error_t (*upgrade_key)(const struct keymaster2_device* dev,
+ const keymaster_key_blob_t* key_to_upgrade,
+ const keymaster_key_param_set_t* upgrade_params,
+ keymaster_key_blob_t* upgraded_key);
+
+ /**
+ * Deletes the key, or key pair, associated with the key blob. After calling this function it
+ * will be impossible to use the key for any other operations. May be applied to keys from
+ * foreign roots of trust (keys not usable under the current root of trust).
+ *
+ * This function is optional and should be set to NULL if it is not implemented.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] key The key to be deleted.
+ */
+ keymaster_error_t (*delete_key)(const struct keymaster2_device* dev,
+ const keymaster_key_blob_t* key);
+
+ /**
+ * Deletes all keys in the hardware keystore. Used when keystore is reset completely. After
+ * calling this function it will be impossible to use any previously generated or imported key
+ * blobs for any operations.
+ *
+ * This function is optional and should be set to NULL if it is not implemented.
+ *
+ * \param[in] dev The keymaster device structure.
+ */
+ keymaster_error_t (*delete_all_keys)(const struct keymaster2_device* dev);
+
+ /**
+ * Begins a cryptographic operation using the specified key. If all is well, begin() will
+ * return KM_ERROR_OK and create an operation handle which must be passed to subsequent calls to
+ * update(), finish() or abort().
+ *
+ * It is critical that each call to begin() be paired with a subsequent call to finish() or
+ * abort(), to allow the keymaster implementation to clean up any internal operation state.
+ * Failure to do this may leak internal state space or other internal resources and may
+ * eventually cause begin() to return KM_ERROR_TOO_MANY_OPERATIONS when it runs out of space for
+ * operations. Any result other than KM_ERROR_OK from begin(), update() or finish() implicitly
+ * aborts the operation, in which case abort() need not be called (and will return
+ * KM_ERROR_INVALID_OPERATION_HANDLE if called).
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] purpose The purpose of the operation, one of KM_PURPOSE_ENCRYPT,
+ * KM_PURPOSE_DECRYPT, KM_PURPOSE_SIGN or KM_PURPOSE_VERIFY. Note that for AEAD modes,
+ * encryption and decryption imply signing and verification, respectively, but should be
+ * specified as KM_PURPOSE_ENCRYPT and KM_PURPOSE_DECRYPT.
+ *
+ * \param[in] key The key to be used for the operation. \p key must have a purpose compatible
+ * with \p purpose and all of its usage requirements must be satisfied, or begin() will return
+ * an appropriate error code.
+ *
+ * \param[in] in_params Additional parameters for the operation. This is typically used to
+ * provide authentication data, with KM_TAG_AUTH_TOKEN. If KM_TAG_APPLICATION_ID or
+ * KM_TAG_APPLICATION_DATA were provided during generation, they must be provided here, or the
+ * operation will fail with KM_ERROR_INVALID_KEY_BLOB. For operations that require a nonce or
+ * IV, on keys that were generated with KM_TAG_CALLER_NONCE, in_params may contain a tag
+ * KM_TAG_NONCE.
+ *
+ * \param[out] out_params Output parameters. Used to return additional data from the operation
+ * initialization, notably to return the IV or nonce from operations that generate an IV or
+ * nonce. The caller takes ownership of the output parameters array and must free it with
+ * keymaster_free_param_set(). out_params may be set to NULL if no output parameters are
+ * expected. If out_params is NULL, and output paramaters are generated, begin() will return
+ * KM_ERROR_OUTPUT_PARAMETER_NULL.
+ *
+ * \param[out] operation_handle The newly-created operation handle which must be passed to
+ * update(), finish() or abort(). If operation_handle is NULL, begin() will return
+ * KM_ERROR_OUTPUT_PARAMETER_NULL.
+ */
+ keymaster_error_t (*begin)(const struct keymaster2_device* dev, keymaster_purpose_t purpose,
+ const keymaster_key_blob_t* key,
+ const keymaster_key_param_set_t* in_params,
+ keymaster_key_param_set_t* out_params,
+ keymaster_operation_handle_t* operation_handle);
+
+ /**
+ * Provides data to, and possibly receives output from, an ongoing cryptographic operation begun
+ * with begin().
+ *
+ * If operation_handle is invalid, update() will return KM_ERROR_INVALID_OPERATION_HANDLE.
+ *
+ * update() may not consume all of the data provided in the data buffer. update() will return
+ * the amount consumed in *data_consumed. The caller should provide the unconsumed data in a
+ * subsequent call.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] operation_handle The operation handle returned by begin().
+ *
+ * \param[in] in_params Additional parameters for the operation. For AEAD modes, this is used
+ * to specify KM_TAG_ADDITIONAL_DATA. Note that additional data may be provided in multiple
+ * calls to update(), but only until input data has been provided.
+ *
+ * \param[in] input Data to be processed, per the parameters established in the call to begin().
+ * Note that update() may or may not consume all of the data provided. See \p input_consumed.
+ *
+ * \param[out] input_consumed Amount of data that was consumed by update(). If this is less
+ * than the amount provided, the caller should provide the remainder in a subsequent call to
+ * update().
+ *
+ * \param[out] out_params Output parameters. Used to return additional data from the operation
+ * The caller takes ownership of the output parameters array and must free it with
+ * keymaster_free_param_set(). out_params may be set to NULL if no output parameters are
+ * expected. If out_params is NULL, and output paramaters are generated, begin() will return
+ * KM_ERROR_OUTPUT_PARAMETER_NULL.
+ *
+ * \param[out] output The output data, if any. The caller assumes ownership of the allocated
+ * buffer. output must not be NULL.
+ *
+ * Note that update() may not provide any output, in which case output->data_length will be
+ * zero, and output->data may be either NULL or zero-length (so the caller should always free()
+ * it).
+ */
+ keymaster_error_t (*update)(const struct keymaster2_device* dev,
+ keymaster_operation_handle_t operation_handle,
+ const keymaster_key_param_set_t* in_params,
+ const keymaster_blob_t* input, size_t* input_consumed,
+ keymaster_key_param_set_t* out_params, keymaster_blob_t* output);
+
+ /**
+ * Finalizes a cryptographic operation begun with begin() and invalidates \p operation_handle.
+ *
+ * \param[in] dev The keymaster device structure.
+ *
+ * \param[in] operation_handle The operation handle returned by begin(). This handle will be
+ * invalidated.
+ *
+ * \param[in] in_params Additional parameters for the operation. For AEAD modes, this is used
+ * to specify KM_TAG_ADDITIONAL_DATA, but only if no input data was provided to update().
+ *
+ * \param[in] input Data to be processed, per the parameters established in the call to
+ * begin(). finish() must consume all provided data or return KM_ERROR_INVALID_INPUT_LENGTH.
+ *
+ * \param[in] signature The signature to be verified if the purpose specified in the begin()
+ * call was KM_PURPOSE_VERIFY.
+ *
+ * \param[out] output The output data, if any. The caller assumes ownership of the allocated
+ * buffer.
+ *
+ * If the operation being finished is a signature verification or an AEAD-mode decryption and
+ * verification fails then finish() will return KM_ERROR_VERIFICATION_FAILED.
+ */
+ keymaster_error_t (*finish)(const struct keymaster2_device* dev,
+ keymaster_operation_handle_t operation_handle,
+ const keymaster_key_param_set_t* in_params,
+ const keymaster_blob_t* input, const keymaster_blob_t* signature,
+ keymaster_key_param_set_t* out_params, keymaster_blob_t* output);
+
+ /**
+ * Aborts a cryptographic operation begun with begin(), freeing all internal resources and
+ * invalidating \p operation_handle.
+ */
+ keymaster_error_t (*abort)(const struct keymaster2_device* dev,
+ keymaster_operation_handle_t operation_handle);
+};
+typedef struct keymaster2_device keymaster2_device_t;
+
+/* Convenience API for opening and closing keymaster devices */
+
+static inline int keymaster2_open(const struct hw_module_t* module, keymaster2_device_t** device) {
+ return module->methods->open(module, KEYSTORE_KEYMASTER, (struct hw_device_t**)device);
+}
+
+static inline int keymaster2_close(keymaster2_device_t* device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_HARDWARE_KEYMASTER2_H
diff --git a/libhardware/include/hardware/keymaster_common.h b/libhardware/include/hardware/keymaster_common.h
new file mode 100644
index 0000000..c79c122
--- /dev/null
+++ b/libhardware/include/hardware/keymaster_common.h
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_KEYMASTER_COMMON_H
+#define ANDROID_HARDWARE_KEYMASTER_COMMON_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define KEYSTORE_HARDWARE_MODULE_ID "keystore"
+
+#define KEYSTORE_KEYMASTER "keymaster"
+
+
+/**
+ * Settings for "module_api_version" and "hal_api_version"
+ * fields in the keymaster_module initialization.
+ */
+
+/**
+ * Keymaster 0.X module version provide the same APIs, but later versions add more options
+ * for algorithms and flags.
+ */
+#define KEYMASTER_MODULE_API_VERSION_0_2 HARDWARE_MODULE_API_VERSION(0, 2)
+#define KEYMASTER_DEVICE_API_VERSION_0_2 HARDWARE_DEVICE_API_VERSION(0, 2)
+
+#define KEYMASTER_MODULE_API_VERSION_0_3 HARDWARE_MODULE_API_VERSION(0, 3)
+#define KEYMASTER_DEVICE_API_VERSION_0_3 HARDWARE_DEVICE_API_VERSION(0, 3)
+
+/**
+ * Keymaster 1.0 module version provides a completely different API, incompatible with 0.X.
+ */
+#define KEYMASTER_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define KEYMASTER_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION(1, 0)
+
+/**
+ * Keymaster 2.0 module version provides third API, slightly modified and extended from 1.0.
+ */
+#define KEYMASTER_MODULE_API_VERSION_2_0 HARDWARE_MODULE_API_VERSION(2, 0)
+#define KEYMASTER_DEVICE_API_VERSION_2_0 HARDWARE_DEVICE_API_VERSION(2, 0)
+
+struct keystore_module {
+ /**
+ * Common methods of the keystore module. This *must* be the first member of keystore_module as
+ * users of this structure will cast a hw_module_t to keystore_module pointer in contexts where
+ * it's known the hw_module_t references a keystore_module.
+ */
+ hw_module_t common;
+
+ /* There are no keystore module methods other than the common ones. */
+};
+
+/**
+ * Flags for keymaster0_device::flags
+ */
+enum {
+ /*
+ * Indicates this keymaster implementation does not have hardware that
+ * keeps private keys out of user space.
+ *
+ * This should not be implemented on anything other than the default
+ * implementation.
+ */
+ KEYMASTER_SOFTWARE_ONLY = 1 << 0,
+
+ /*
+ * This indicates that the key blobs returned via all the primitives
+ * are sufficient to operate on their own without the trusted OS
+ * querying userspace to retrieve some other data. Key blobs of
+ * this type are normally returned encrypted with a
+ * Key Encryption Key (KEK).
+ *
+ * This is currently used by "vold" to know whether the whole disk
+ * encryption secret can be unwrapped without having some external
+ * service started up beforehand since the "/data" partition will
+ * be unavailable at that point.
+ */
+ KEYMASTER_BLOBS_ARE_STANDALONE = 1 << 1,
+
+ /*
+ * Indicates that the keymaster module supports DSA keys.
+ */
+ KEYMASTER_SUPPORTS_DSA = 1 << 2,
+
+ /*
+ * Indicates that the keymaster module supports EC keys.
+ */
+ KEYMASTER_SUPPORTS_EC = 1 << 3,
+};
+
+/**
+ * Asymmetric key pair types.
+ */
+typedef enum {
+ TYPE_RSA = 1,
+ TYPE_DSA = 2,
+ TYPE_EC = 3,
+} keymaster_keypair_t;
+
+/**
+ * Parameters needed to generate an RSA key.
+ */
+typedef struct {
+ uint32_t modulus_size;
+ uint64_t public_exponent;
+} keymaster_rsa_keygen_params_t;
+
+/**
+ * Parameters needed to generate a DSA key.
+ */
+typedef struct {
+ uint32_t key_size;
+ uint32_t generator_len;
+ uint32_t prime_p_len;
+ uint32_t prime_q_len;
+ const uint8_t* generator;
+ const uint8_t* prime_p;
+ const uint8_t* prime_q;
+} keymaster_dsa_keygen_params_t;
+
+/**
+ * Parameters needed to generate an EC key.
+ *
+ * Field size is the only parameter in version 2. The sizes correspond to these required curves:
+ *
+ * 192 = NIST P-192
+ * 224 = NIST P-224
+ * 256 = NIST P-256
+ * 384 = NIST P-384
+ * 521 = NIST P-521
+ *
+ * The parameters for these curves are available at: http://www.nsa.gov/ia/_files/nist-routines.pdf
+ * in Chapter 4.
+ */
+typedef struct {
+ uint32_t field_size;
+} keymaster_ec_keygen_params_t;
+
+
+/**
+ * Digest type.
+ */
+typedef enum {
+ DIGEST_NONE,
+} keymaster_digest_algorithm_t;
+
+/**
+ * Type of padding used for RSA operations.
+ */
+typedef enum {
+ PADDING_NONE,
+} keymaster_rsa_padding_t;
+
+
+typedef struct {
+ keymaster_digest_algorithm_t digest_type;
+} keymaster_dsa_sign_params_t;
+
+typedef struct {
+ keymaster_digest_algorithm_t digest_type;
+} keymaster_ec_sign_params_t;
+
+typedef struct {
+ keymaster_digest_algorithm_t digest_type;
+ keymaster_rsa_padding_t padding_type;
+} keymaster_rsa_sign_params_t;
+
+__END_DECLS
+
+#endif // ANDROID_HARDWARE_KEYMASTER_COMMON_H
diff --git a/libhardware/include/hardware/keymaster_defs.h b/libhardware/include/hardware/keymaster_defs.h
new file mode 100644
index 0000000..fd53adf
--- /dev/null
+++ b/libhardware/include/hardware/keymaster_defs.h
@@ -0,0 +1,589 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_KEYMASTER_DEFS_H
+#define ANDROID_HARDWARE_KEYMASTER_DEFS_H
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+/**
+ * Authorization tags each have an associated type. This enumeration facilitates tagging each with
+ * a type, by using the high four bits (of an implied 32-bit unsigned enum value) to specify up to
+ * 16 data types. These values are ORed with tag IDs to generate the final tag ID values.
+ */
+typedef enum {
+ KM_INVALID = 0 << 28, /* Invalid type, used to designate a tag as uninitialized */
+ KM_ENUM = 1 << 28,
+ KM_ENUM_REP = 2 << 28, /* Repeatable enumeration value. */
+ KM_UINT = 3 << 28,
+ KM_UINT_REP = 4 << 28, /* Repeatable integer value */
+ KM_ULONG = 5 << 28,
+ KM_DATE = 6 << 28,
+ KM_BOOL = 7 << 28,
+ KM_BIGNUM = 8 << 28,
+ KM_BYTES = 9 << 28,
+ KM_ULONG_REP = 10 << 28, /* Repeatable long value */
+} keymaster_tag_type_t;
+
+typedef enum {
+ KM_TAG_INVALID = KM_INVALID | 0,
+
+ /*
+ * Tags that must be semantically enforced by hardware and software implementations.
+ */
+
+ /* Crypto parameters */
+ KM_TAG_PURPOSE = KM_ENUM_REP | 1, /* keymaster_purpose_t. */
+ KM_TAG_ALGORITHM = KM_ENUM | 2, /* keymaster_algorithm_t. */
+ KM_TAG_KEY_SIZE = KM_UINT | 3, /* Key size in bits. */
+ KM_TAG_BLOCK_MODE = KM_ENUM_REP | 4, /* keymaster_block_mode_t. */
+ KM_TAG_DIGEST = KM_ENUM_REP | 5, /* keymaster_digest_t. */
+ KM_TAG_PADDING = KM_ENUM_REP | 6, /* keymaster_padding_t. */
+ KM_TAG_CALLER_NONCE = KM_BOOL | 7, /* Allow caller to specify nonce or IV. */
+ KM_TAG_MIN_MAC_LENGTH = KM_UINT | 8, /* Minimum length of MAC or AEAD authentication tag in
+ * bits. */
+ KM_TAG_KDF = KM_ENUM_REP | 9, /* keymaster_kdf_t (keymaster2) */
+ KM_TAG_EC_CURVE = KM_ENUM | 10, /* keymaster_ec_curve_t (keymaster2) */
+
+ /* Algorithm-specific. */
+ KM_TAG_RSA_PUBLIC_EXPONENT = KM_ULONG | 200,
+ KM_TAG_ECIES_SINGLE_HASH_MODE = KM_BOOL | 201, /* Whether the ephemeral public key is fed into
+ * the KDF */
+ KM_TAG_INCLUDE_UNIQUE_ID = KM_BOOL | 202, /* If true, attestation certificates for this key
+ * will contain an application-scoped and
+ * time-bounded device-unique ID. (keymaster2) */
+
+ /* Other hardware-enforced. */
+ KM_TAG_BLOB_USAGE_REQUIREMENTS = KM_ENUM | 301, /* keymaster_key_blob_usage_requirements_t */
+ KM_TAG_BOOTLOADER_ONLY = KM_BOOL | 302, /* Usable only by bootloader */
+
+ /*
+ * Tags that should be semantically enforced by hardware if possible and will otherwise be
+ * enforced by software (keystore).
+ */
+
+ /* Key validity period */
+ KM_TAG_ACTIVE_DATETIME = KM_DATE | 400, /* Start of validity */
+ KM_TAG_ORIGINATION_EXPIRE_DATETIME = KM_DATE | 401, /* Date when new "messages" should no
+ longer be created. */
+ KM_TAG_USAGE_EXPIRE_DATETIME = KM_DATE | 402, /* Date when existing "messages" should no
+ longer be trusted. */
+ KM_TAG_MIN_SECONDS_BETWEEN_OPS = KM_UINT | 403, /* Minimum elapsed time between
+ cryptographic operations with the key. */
+ KM_TAG_MAX_USES_PER_BOOT = KM_UINT | 404, /* Number of times the key can be used per
+ boot. */
+
+ /* User authentication */
+ KM_TAG_ALL_USERS = KM_BOOL | 500, /* Reserved for future use -- ignore */
+ KM_TAG_USER_ID = KM_UINT | 501, /* Reserved for future use -- ignore */
+ KM_TAG_USER_SECURE_ID = KM_ULONG_REP | 502, /* Secure ID of authorized user or authenticator(s).
+ Disallowed if KM_TAG_ALL_USERS or
+ KM_TAG_NO_AUTH_REQUIRED is present. */
+ KM_TAG_NO_AUTH_REQUIRED = KM_BOOL | 503, /* If key is usable without authentication. */
+ KM_TAG_USER_AUTH_TYPE = KM_ENUM | 504, /* Bitmask of authenticator types allowed when
+ * KM_TAG_USER_SECURE_ID contains a secure user ID,
+ * rather than a secure authenticator ID. Defined in
+ * hw_authenticator_type_t in hw_auth_token.h. */
+ KM_TAG_AUTH_TIMEOUT = KM_UINT | 505, /* Required freshness of user authentication for
+ private/secret key operations, in seconds.
+ Public key operations require no authentication.
+ If absent, authentication is required for every
+ use. Authentication state is lost when the
+ device is powered off. */
+ KM_TAG_ALLOW_WHILE_ON_BODY = KM_BOOL | 506, /* Allow key to be used after authentication timeout
+ * if device is still on-body (requires secure
+ * on-body sensor. */
+
+ /* Application access control */
+ KM_TAG_ALL_APPLICATIONS = KM_BOOL | 600, /* Specified to indicate key is usable by all
+ * applications. */
+ KM_TAG_APPLICATION_ID = KM_BYTES | 601, /* Byte string identifying the authorized
+ * application. */
+ KM_TAG_EXPORTABLE = KM_BOOL | 602, /* If true, private/secret key can be exported, but
+ * only if all access control requirements for use are
+ * met. (keymaster2) */
+
+ /*
+ * Semantically unenforceable tags, either because they have no specific meaning or because
+ * they're informational only.
+ */
+ KM_TAG_APPLICATION_DATA = KM_BYTES | 700, /* Data provided by authorized application. */
+ KM_TAG_CREATION_DATETIME = KM_DATE | 701, /* Key creation time */
+ KM_TAG_ORIGIN = KM_ENUM | 702, /* keymaster_key_origin_t. */
+ KM_TAG_ROLLBACK_RESISTANT = KM_BOOL | 703, /* Whether key is rollback-resistant. */
+ KM_TAG_ROOT_OF_TRUST = KM_BYTES | 704, /* Root of trust ID. */
+ KM_TAG_OS_VERSION = KM_UINT | 705, /* Version of system (keymaster2) */
+ KM_TAG_OS_PATCHLEVEL = KM_UINT | 706, /* Patch level of system (keymaster2) */
+ KM_TAG_UNIQUE_ID = KM_BYTES | 707, /* Used to provide unique ID in attestation */
+
+ /* Tags used only to provide data to or receive data from operations */
+ KM_TAG_ASSOCIATED_DATA = KM_BYTES | 1000, /* Used to provide associated data for AEAD modes. */
+ KM_TAG_NONCE = KM_BYTES | 1001, /* Nonce or Initialization Vector */
+ KM_TAG_AUTH_TOKEN = KM_BYTES | 1002, /* Authentication token that proves secure user
+ authentication has been performed. Structure
+ defined in hw_auth_token_t in hw_auth_token.h. */
+ KM_TAG_MAC_LENGTH = KM_UINT | 1003, /* MAC or AEAD authentication tag length in
+ * bits. */
+
+ KM_TAG_RESET_SINCE_ID_ROTATION = KM_BOOL | 1004, /* Whether the device has beeen factory reset
+ since the last unique ID rotation. Used for
+ key attestation. */
+} keymaster_tag_t;
+
+/**
+ * Algorithms that may be provided by keymaster implementations. Those that must be provided by all
+ * implementations are tagged as "required".
+ */
+typedef enum {
+ /* Asymmetric algorithms. */
+ KM_ALGORITHM_RSA = 1,
+ // KM_ALGORITHM_DSA = 2, -- Removed, do not re-use value 2.
+ KM_ALGORITHM_EC = 3,
+
+ /* Block ciphers algorithms */
+ KM_ALGORITHM_AES = 32,
+
+ /* MAC algorithms */
+ KM_ALGORITHM_HMAC = 128,
+} keymaster_algorithm_t;
+
+/**
+ * Symmetric block cipher modes provided by keymaster implementations.
+ */
+typedef enum {
+ /* Unauthenticated modes, usable only for encryption/decryption and not generally recommended
+ * except for compatibility with existing other protocols. */
+ KM_MODE_ECB = 1,
+ KM_MODE_CBC = 2,
+ KM_MODE_CTR = 3,
+
+ /* Authenticated modes, usable for encryption/decryption and signing/verification. Recommended
+ * over unauthenticated modes for all purposes. */
+ KM_MODE_GCM = 32,
+} keymaster_block_mode_t;
+
+/**
+ * Padding modes that may be applied to plaintext for encryption operations. This list includes
+ * padding modes for both symmetric and asymmetric algorithms. Note that implementations should not
+ * provide all possible combinations of algorithm and padding, only the
+ * cryptographically-appropriate pairs.
+ */
+typedef enum {
+ KM_PAD_NONE = 1, /* deprecated */
+ KM_PAD_RSA_OAEP = 2,
+ KM_PAD_RSA_PSS = 3,
+ KM_PAD_RSA_PKCS1_1_5_ENCRYPT = 4,
+ KM_PAD_RSA_PKCS1_1_5_SIGN = 5,
+ KM_PAD_PKCS7 = 64,
+} keymaster_padding_t;
+
+/**
+ * Digests provided by keymaster implementations.
+ */
+typedef enum {
+ KM_DIGEST_NONE = 0,
+ KM_DIGEST_MD5 = 1, /* Optional, may not be implemented in hardware, will be handled in software
+ * if needed. */
+ KM_DIGEST_SHA1 = 2,
+ KM_DIGEST_SHA_2_224 = 3,
+ KM_DIGEST_SHA_2_256 = 4,
+ KM_DIGEST_SHA_2_384 = 5,
+ KM_DIGEST_SHA_2_512 = 6,
+} keymaster_digest_t;
+
+/*
+ * Key derivation functions, mostly used in ECIES.
+ */
+typedef enum {
+ /* Do not apply a key derivation function; use the raw agreed key */
+ KM_KDF_NONE = 0,
+ /* HKDF defined in RFC 5869 with SHA256 */
+ KM_KDF_RFC5869_SHA256 = 1,
+ /* KDF1 defined in ISO 18033-2 with SHA1 */
+ KM_KDF_ISO18033_2_KDF1_SHA1 = 2,
+ /* KDF1 defined in ISO 18033-2 with SHA256 */
+ KM_KDF_ISO18033_2_KDF1_SHA256 = 3,
+ /* KDF2 defined in ISO 18033-2 with SHA1 */
+ KM_KDF_ISO18033_2_KDF2_SHA1 = 4,
+ /* KDF2 defined in ISO 18033-2 with SHA256 */
+ KM_KDF_ISO18033_2_KDF2_SHA256 = 5,
+} keymaster_kdf_t;
+
+/**
+ * Supported EC curves, used in ECDSA/ECIES.
+ */
+typedef enum {
+ KM_EC_CURVE_P_224 = 0,
+ KM_EC_CURVE_P_256 = 1,
+ KM_EC_CURVE_P_384 = 2,
+ KM_EC_CURVE_P_521 = 3,
+} keymaster_ec_curve_t;
+
+/**
+ * The origin of a key (or pair), i.e. where it was generated. Note that KM_TAG_ORIGIN can be found
+ * in either the hardware-enforced or software-enforced list for a key, indicating whether the key
+ * is hardware or software-based. Specifically, a key with KM_ORIGIN_GENERATED in the
+ * hardware-enforced list is guaranteed never to have existed outide the secure hardware.
+ */
+typedef enum {
+ KM_ORIGIN_GENERATED = 0, /* Generated in keymaster. Should not exist outside the TEE. */
+ KM_ORIGIN_DERIVED = 1, /* Derived inside keymaster. Likely exists off-device. */
+ KM_ORIGIN_IMPORTED = 2, /* Imported into keymaster. Existed as cleartext in Android. */
+ KM_ORIGIN_UNKNOWN = 3, /* Keymaster did not record origin. This value can only be seen on
+ * keys in a keymaster0 implementation. The keymaster0 adapter uses
+ * this value to document the fact that it is unkown whether the key
+ * was generated inside or imported into keymaster. */
+} keymaster_key_origin_t;
+
+/**
+ * Usability requirements of key blobs. This defines what system functionality must be available
+ * for the key to function. For example, key "blobs" which are actually handles referencing
+ * encrypted key material stored in the file system cannot be used until the file system is
+ * available, and should have BLOB_REQUIRES_FILE_SYSTEM. Other requirements entries will be added
+ * as needed for implementations.
+ */
+typedef enum {
+ KM_BLOB_STANDALONE = 0,
+ KM_BLOB_REQUIRES_FILE_SYSTEM = 1,
+} keymaster_key_blob_usage_requirements_t;
+
+/**
+ * Possible purposes of a key (or pair).
+ */
+typedef enum {
+ KM_PURPOSE_ENCRYPT = 0, /* Usable with RSA, EC and AES keys. */
+ KM_PURPOSE_DECRYPT = 1, /* Usable with RSA, EC and AES keys. */
+ KM_PURPOSE_SIGN = 2, /* Usable with RSA, EC and HMAC keys. */
+ KM_PURPOSE_VERIFY = 3, /* Usable with RSA, EC and HMAC keys. */
+ KM_PURPOSE_DERIVE_KEY = 4, /* Usable with EC keys. */
+} keymaster_purpose_t;
+
+typedef struct {
+ const uint8_t* data;
+ size_t data_length;
+} keymaster_blob_t;
+
+typedef struct {
+ keymaster_tag_t tag;
+ union {
+ uint32_t enumerated; /* KM_ENUM and KM_ENUM_REP */
+ bool boolean; /* KM_BOOL */
+ uint32_t integer; /* KM_INT and KM_INT_REP */
+ uint64_t long_integer; /* KM_LONG */
+ uint64_t date_time; /* KM_DATE */
+ keymaster_blob_t blob; /* KM_BIGNUM and KM_BYTES*/
+ };
+} keymaster_key_param_t;
+
+typedef struct {
+ keymaster_key_param_t* params; /* may be NULL if length == 0 */
+ size_t length;
+} keymaster_key_param_set_t;
+
+/**
+ * Parameters that define a key's characteristics, including authorized modes of usage and access
+ * control restrictions. The parameters are divided into two categories, those that are enforced by
+ * secure hardware, and those that are not. For a software-only keymaster implementation the
+ * enforced array must NULL. Hardware implementations must enforce everything in the enforced
+ * array.
+ */
+typedef struct {
+ keymaster_key_param_set_t hw_enforced;
+ keymaster_key_param_set_t sw_enforced;
+} keymaster_key_characteristics_t;
+
+typedef struct {
+ const uint8_t* key_material;
+ size_t key_material_size;
+} keymaster_key_blob_t;
+
+typedef struct {
+ keymaster_blob_t* entries;
+ size_t entry_count;
+} keymaster_cert_chain_t;
+
+/**
+ * Formats for key import and export.
+ */
+typedef enum {
+ KM_KEY_FORMAT_X509 = 0, /* for public key export */
+ KM_KEY_FORMAT_PKCS8 = 1, /* for asymmetric key pair import */
+ KM_KEY_FORMAT_RAW = 3, /* for symmetric key import and export*/
+} keymaster_key_format_t;
+
+/**
+ * The keymaster operation API consists of begin, update, finish and abort. This is the type of the
+ * handle used to tie the sequence of calls together. A 64-bit value is used because it's important
+ * that handles not be predictable. Implementations must use strong random numbers for handle
+ * values.
+ */
+typedef uint64_t keymaster_operation_handle_t;
+
+typedef enum {
+ KM_ERROR_OK = 0,
+ KM_ERROR_ROOT_OF_TRUST_ALREADY_SET = -1,
+ KM_ERROR_UNSUPPORTED_PURPOSE = -2,
+ KM_ERROR_INCOMPATIBLE_PURPOSE = -3,
+ KM_ERROR_UNSUPPORTED_ALGORITHM = -4,
+ KM_ERROR_INCOMPATIBLE_ALGORITHM = -5,
+ KM_ERROR_UNSUPPORTED_KEY_SIZE = -6,
+ KM_ERROR_UNSUPPORTED_BLOCK_MODE = -7,
+ KM_ERROR_INCOMPATIBLE_BLOCK_MODE = -8,
+ KM_ERROR_UNSUPPORTED_MAC_LENGTH = -9,
+ KM_ERROR_UNSUPPORTED_PADDING_MODE = -10,
+ KM_ERROR_INCOMPATIBLE_PADDING_MODE = -11,
+ KM_ERROR_UNSUPPORTED_DIGEST = -12,
+ KM_ERROR_INCOMPATIBLE_DIGEST = -13,
+ KM_ERROR_INVALID_EXPIRATION_TIME = -14,
+ KM_ERROR_INVALID_USER_ID = -15,
+ KM_ERROR_INVALID_AUTHORIZATION_TIMEOUT = -16,
+ KM_ERROR_UNSUPPORTED_KEY_FORMAT = -17,
+ KM_ERROR_INCOMPATIBLE_KEY_FORMAT = -18,
+ KM_ERROR_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM = -19, /* For PKCS8 & PKCS12 */
+ KM_ERROR_UNSUPPORTED_KEY_VERIFICATION_ALGORITHM = -20, /* For PKCS8 & PKCS12 */
+ KM_ERROR_INVALID_INPUT_LENGTH = -21,
+ KM_ERROR_KEY_EXPORT_OPTIONS_INVALID = -22,
+ KM_ERROR_DELEGATION_NOT_ALLOWED = -23,
+ KM_ERROR_KEY_NOT_YET_VALID = -24,
+ KM_ERROR_KEY_EXPIRED = -25,
+ KM_ERROR_KEY_USER_NOT_AUTHENTICATED = -26,
+ KM_ERROR_OUTPUT_PARAMETER_NULL = -27,
+ KM_ERROR_INVALID_OPERATION_HANDLE = -28,
+ KM_ERROR_INSUFFICIENT_BUFFER_SPACE = -29,
+ KM_ERROR_VERIFICATION_FAILED = -30,
+ KM_ERROR_TOO_MANY_OPERATIONS = -31,
+ KM_ERROR_UNEXPECTED_NULL_POINTER = -32,
+ KM_ERROR_INVALID_KEY_BLOB = -33,
+ KM_ERROR_IMPORTED_KEY_NOT_ENCRYPTED = -34,
+ KM_ERROR_IMPORTED_KEY_DECRYPTION_FAILED = -35,
+ KM_ERROR_IMPORTED_KEY_NOT_SIGNED = -36,
+ KM_ERROR_IMPORTED_KEY_VERIFICATION_FAILED = -37,
+ KM_ERROR_INVALID_ARGUMENT = -38,
+ KM_ERROR_UNSUPPORTED_TAG = -39,
+ KM_ERROR_INVALID_TAG = -40,
+ KM_ERROR_MEMORY_ALLOCATION_FAILED = -41,
+ KM_ERROR_IMPORT_PARAMETER_MISMATCH = -44,
+ KM_ERROR_SECURE_HW_ACCESS_DENIED = -45,
+ KM_ERROR_OPERATION_CANCELLED = -46,
+ KM_ERROR_CONCURRENT_ACCESS_CONFLICT = -47,
+ KM_ERROR_SECURE_HW_BUSY = -48,
+ KM_ERROR_SECURE_HW_COMMUNICATION_FAILED = -49,
+ KM_ERROR_UNSUPPORTED_EC_FIELD = -50,
+ KM_ERROR_MISSING_NONCE = -51,
+ KM_ERROR_INVALID_NONCE = -52,
+ KM_ERROR_MISSING_MAC_LENGTH = -53,
+ KM_ERROR_KEY_RATE_LIMIT_EXCEEDED = -54,
+ KM_ERROR_CALLER_NONCE_PROHIBITED = -55,
+ KM_ERROR_KEY_MAX_OPS_EXCEEDED = -56,
+ KM_ERROR_INVALID_MAC_LENGTH = -57,
+ KM_ERROR_MISSING_MIN_MAC_LENGTH = -58,
+ KM_ERROR_UNSUPPORTED_MIN_MAC_LENGTH = -59,
+ KM_ERROR_UNSUPPORTED_KDF = -60,
+ KM_ERROR_UNSUPPORTED_EC_CURVE = -61,
+ KM_ERROR_KEY_REQUIRES_UPGRADE = -62,
+
+ KM_ERROR_UNIMPLEMENTED = -100,
+ KM_ERROR_VERSION_MISMATCH = -101,
+
+ KM_ERROR_UNKNOWN_ERROR = -1000,
+} keymaster_error_t;
+
+/* Convenience functions for manipulating keymaster tag types */
+
+static inline keymaster_tag_type_t keymaster_tag_get_type(keymaster_tag_t tag) {
+ return (keymaster_tag_type_t)(tag & (0xF << 28));
+}
+
+static inline uint32_t keymaster_tag_mask_type(keymaster_tag_t tag) {
+ return tag & 0x0FFFFFFF;
+}
+
+static inline bool keymaster_tag_type_repeatable(keymaster_tag_type_t type) {
+ switch (type) {
+ case KM_UINT_REP:
+ case KM_ENUM_REP:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static inline bool keymaster_tag_repeatable(keymaster_tag_t tag) {
+ return keymaster_tag_type_repeatable(keymaster_tag_get_type(tag));
+}
+
+/* Convenience functions for manipulating keymaster_key_param_t structs */
+
+inline keymaster_key_param_t keymaster_param_enum(keymaster_tag_t tag, uint32_t value) {
+ // assert(keymaster_tag_get_type(tag) == KM_ENUM || keymaster_tag_get_type(tag) == KM_ENUM_REP);
+ keymaster_key_param_t param;
+ memset(¶m, 0, sizeof(param));
+ param.tag = tag;
+ param.enumerated = value;
+ return param;
+}
+
+inline keymaster_key_param_t keymaster_param_int(keymaster_tag_t tag, uint32_t value) {
+ // assert(keymaster_tag_get_type(tag) == KM_INT || keymaster_tag_get_type(tag) == KM_INT_REP);
+ keymaster_key_param_t param;
+ memset(¶m, 0, sizeof(param));
+ param.tag = tag;
+ param.integer = value;
+ return param;
+}
+
+inline keymaster_key_param_t keymaster_param_long(keymaster_tag_t tag, uint64_t value) {
+ // assert(keymaster_tag_get_type(tag) == KM_LONG);
+ keymaster_key_param_t param;
+ memset(¶m, 0, sizeof(param));
+ param.tag = tag;
+ param.long_integer = value;
+ return param;
+}
+
+inline keymaster_key_param_t keymaster_param_blob(keymaster_tag_t tag, const uint8_t* bytes,
+ size_t bytes_len) {
+ // assert(keymaster_tag_get_type(tag) == KM_BYTES || keymaster_tag_get_type(tag) == KM_BIGNUM);
+ keymaster_key_param_t param;
+ memset(¶m, 0, sizeof(param));
+ param.tag = tag;
+ param.blob.data = (uint8_t*)bytes;
+ param.blob.data_length = bytes_len;
+ return param;
+}
+
+inline keymaster_key_param_t keymaster_param_bool(keymaster_tag_t tag) {
+ // assert(keymaster_tag_get_type(tag) == KM_BOOL);
+ keymaster_key_param_t param;
+ memset(¶m, 0, sizeof(param));
+ param.tag = tag;
+ param.boolean = true;
+ return param;
+}
+
+inline keymaster_key_param_t keymaster_param_date(keymaster_tag_t tag, uint64_t value) {
+ // assert(keymaster_tag_get_type(tag) == KM_DATE);
+ keymaster_key_param_t param;
+ memset(¶m, 0, sizeof(param));
+ param.tag = tag;
+ param.date_time = value;
+ return param;
+}
+
+#define KEYMASTER_SIMPLE_COMPARE(a, b) (a < b) ? -1 : ((a > b) ? 1 : 0)
+inline int keymaster_param_compare(const keymaster_key_param_t* a, const keymaster_key_param_t* b) {
+ int retval = KEYMASTER_SIMPLE_COMPARE(a->tag, b->tag);
+ if (retval != 0)
+ return retval;
+
+ switch (keymaster_tag_get_type(a->tag)) {
+ case KM_INVALID:
+ case KM_BOOL:
+ return 0;
+ case KM_ENUM:
+ case KM_ENUM_REP:
+ return KEYMASTER_SIMPLE_COMPARE(a->enumerated, b->enumerated);
+ case KM_UINT:
+ case KM_UINT_REP:
+ return KEYMASTER_SIMPLE_COMPARE(a->integer, b->integer);
+ case KM_ULONG:
+ case KM_ULONG_REP:
+ return KEYMASTER_SIMPLE_COMPARE(a->long_integer, b->long_integer);
+ case KM_DATE:
+ return KEYMASTER_SIMPLE_COMPARE(a->date_time, b->date_time);
+ case KM_BIGNUM:
+ case KM_BYTES:
+ // Handle the empty cases.
+ if (a->blob.data_length != 0 && b->blob.data_length == 0)
+ return -1;
+ if (a->blob.data_length == 0 && b->blob.data_length == 0)
+ return 0;
+ if (a->blob.data_length == 0 && b->blob.data_length > 0)
+ return 1;
+
+ retval = memcmp(a->blob.data, b->blob.data, a->blob.data_length < b->blob.data_length
+ ? a->blob.data_length
+ : b->blob.data_length);
+ if (retval != 0)
+ return retval;
+ else if (a->blob.data_length != b->blob.data_length) {
+ // Equal up to the common length; longer one is larger.
+ if (a->blob.data_length < b->blob.data_length)
+ return -1;
+ if (a->blob.data_length > b->blob.data_length)
+ return 1;
+ };
+ }
+
+ return 0;
+}
+#undef KEYMASTER_SIMPLE_COMPARE
+
+inline void keymaster_free_param_values(keymaster_key_param_t* param, size_t param_count) {
+ while (param_count-- > 0) {
+ switch (keymaster_tag_get_type(param->tag)) {
+ case KM_BIGNUM:
+ case KM_BYTES:
+ free((void*)param->blob.data);
+ param->blob.data = NULL;
+ break;
+ default:
+ // NOP
+ break;
+ }
+ ++param;
+ }
+}
+
+inline void keymaster_free_param_set(keymaster_key_param_set_t* set) {
+ if (set) {
+ keymaster_free_param_values(set->params, set->length);
+ free(set->params);
+ set->params = NULL;
+ }
+}
+
+inline void keymaster_free_characteristics(keymaster_key_characteristics_t* characteristics) {
+ if (characteristics) {
+ keymaster_free_param_set(&characteristics->hw_enforced);
+ keymaster_free_param_set(&characteristics->sw_enforced);
+ }
+}
+
+inline void keymaster_free_cert_chain(keymaster_cert_chain_t* chain) {
+ if (chain) {
+ for (size_t i = 0; i < chain->entry_count; ++i) {
+ free((uint8_t*)chain->entries[i].data);
+ chain->entries[i].data = NULL;
+ chain->entries[i].data_length = 0;
+ }
+ free(chain->entries);
+ chain->entries = NULL;
+ chain->entry_count = 0;
+ }
+}
+
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
+
+#endif // ANDROID_HARDWARE_KEYMASTER_DEFS_H
diff --git a/libhardware/include/hardware/lights.h b/libhardware/include/hardware/lights.h
new file mode 100644
index 0000000..2cf5519
--- /dev/null
+++ b/libhardware/include/hardware/lights.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_LIGHTS_INTERFACE_H
+#define ANDROID_LIGHTS_INTERFACE_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define LIGHTS_HARDWARE_MODULE_ID "lights"
+
+/*
+ * These light IDs correspond to logical lights, not physical.
+ * So for example, if your INDICATOR light is in line with your
+ * BUTTONS, it might make sense to also light the INDICATOR
+ * light to a reasonable color when the BUTTONS are lit.
+ */
+#define LIGHT_ID_BACKLIGHT "backlight"
+#define LIGHT_ID_KEYBOARD "keyboard"
+#define LIGHT_ID_BUTTONS "buttons"
+#define LIGHT_ID_BATTERY "battery"
+#define LIGHT_ID_NOTIFICATIONS "notifications"
+#define LIGHT_ID_ATTENTION "attention"
+
+/*
+ * These lights aren't currently supported by the higher
+ * layers, but could be someday, so we have the constants
+ * here now.
+ */
+#define LIGHT_ID_BLUETOOTH "bluetooth"
+#define LIGHT_ID_WIFI "wifi"
+
+/* ************************************************************************
+ * Flash modes for the flashMode field of light_state_t.
+ */
+
+#define LIGHT_FLASH_NONE 0
+
+/**
+ * To flash the light at a given rate, set flashMode to LIGHT_FLASH_TIMED,
+ * and then flashOnMS should be set to the number of milliseconds to turn
+ * the light on, followed by the number of milliseconds to turn the light
+ * off.
+ */
+#define LIGHT_FLASH_TIMED 1
+
+/**
+ * To flash the light using hardware assist, set flashMode to
+ * the hardware mode.
+ */
+#define LIGHT_FLASH_HARDWARE 2
+
+/**
+ * Light brightness is managed by a user setting.
+ */
+#define BRIGHTNESS_MODE_USER 0
+
+/**
+ * Light brightness is managed by a light sensor.
+ */
+#define BRIGHTNESS_MODE_SENSOR 1
+
+/**
+ * The parameters that can be set for a given light.
+ *
+ * Not all lights must support all parameters. If you
+ * can do something backward-compatible, you should.
+ */
+struct light_state_t {
+ /**
+ * The color of the LED in ARGB.
+ *
+ * Do your best here.
+ * - If your light can only do red or green, if they ask for blue,
+ * you should do green.
+ * - If you can only do a brightness ramp, then use this formula:
+ * unsigned char brightness = ((77*((color>>16)&0x00ff))
+ * + (150*((color>>8)&0x00ff)) + (29*(color&0x00ff))) >> 8;
+ * - If you can only do on or off, 0 is off, anything else is on.
+ *
+ * The high byte should be ignored. Callers will set it to 0xff (which
+ * would correspond to 255 alpha).
+ */
+ unsigned int color;
+
+ /**
+ * See the LIGHT_FLASH_* constants
+ */
+ int flashMode;
+ int flashOnMS;
+ int flashOffMS;
+
+ /**
+ * Policy used by the framework to manage the light's brightness.
+ * Currently the values are BRIGHTNESS_MODE_USER and BRIGHTNESS_MODE_SENSOR.
+ */
+ int brightnessMode;
+};
+
+struct light_device_t {
+ struct hw_device_t common;
+
+ /**
+ * Set the provided lights to the provided values.
+ *
+ * Returns: 0 on succes, error code on failure.
+ */
+ int (*set_light)(struct light_device_t* dev,
+ struct light_state_t const* state);
+};
+
+
+__END_DECLS
+
+#endif // ANDROID_LIGHTS_INTERFACE_H
+
diff --git a/libhardware/include/hardware/local_time_hal.h b/libhardware/include/hardware/local_time_hal.h
new file mode 100644
index 0000000..946e799
--- /dev/null
+++ b/libhardware/include/hardware/local_time_hal.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_LOCAL_TIME_HAL_INTERFACE_H
+#define ANDROID_LOCAL_TIME_HAL_INTERFACE_H
+
+#include <stdint.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define LOCAL_TIME_HARDWARE_MODULE_ID "local_time"
+
+/**
+ * Name of the local time devices to open
+ */
+#define LOCAL_TIME_HARDWARE_INTERFACE "local_time_hw_if"
+
+/**********************************************************************/
+
+/**
+ * A structure used to collect low level sync data in a lab environment. Most
+ * HAL implementations will never need this structure.
+ */
+struct local_time_debug_event {
+ int64_t local_timesync_event_id;
+ int64_t local_time;
+};
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+struct local_time_module {
+ struct hw_module_t common;
+};
+
+struct local_time_hw_device {
+ /**
+ * Common methods of the local time hardware device. This *must* be the first member of
+ * local_time_hw_device as users of this structure will cast a hw_device_t to
+ * local_time_hw_device pointer in contexts where it's known the hw_device_t references a
+ * local_time_hw_device.
+ */
+ struct hw_device_t common;
+
+ /**
+ *
+ * Returns the current value of the system wide local time counter
+ */
+ int64_t (*get_local_time)(struct local_time_hw_device* dev);
+
+ /**
+ *
+ * Returns the nominal frequency (in hertz) of the system wide local time
+ * counter
+ */
+ uint64_t (*get_local_freq)(struct local_time_hw_device* dev);
+
+ /**
+ *
+ * Sets the HW slew rate of oscillator which drives the system wide local
+ * time counter. On success, platforms should return 0. Platforms which
+ * do not support HW slew should leave this method set to NULL.
+ *
+ * Valid values for rate range from MIN_INT16 to MAX_INT16. Platform
+ * implementations should attempt map this range linearly to the min/max
+ * slew rate of their hardware.
+ */
+ int (*set_local_slew)(struct local_time_hw_device* dev, int16_t rate);
+
+ /**
+ *
+ * A method used to collect low level sync data in a lab environments.
+ * Most HAL implementations will simply set this member to NULL, or return
+ * -EINVAL to indicate that this functionality is not supported.
+ * Production HALs should never support this method.
+ */
+ int (*get_debug_log)(struct local_time_hw_device* dev,
+ struct local_time_debug_event* records,
+ int max_records);
+};
+
+typedef struct local_time_hw_device local_time_hw_device_t;
+
+/** convenience API for opening and closing a supported device */
+
+static inline int local_time_hw_device_open(
+ const struct hw_module_t* module,
+ struct local_time_hw_device** device)
+{
+ return module->methods->open(module, LOCAL_TIME_HARDWARE_INTERFACE,
+ (struct hw_device_t**)device);
+}
+
+static inline int local_time_hw_device_close(struct local_time_hw_device* device)
+{
+ return device->common.close(&device->common);
+}
+
+
+__END_DECLS
+
+#endif // ANDROID_LOCAL_TIME_INTERFACE_H
diff --git a/libhardware/include/hardware/memtrack.h b/libhardware/include/hardware/memtrack.h
new file mode 100644
index 0000000..57ba4ad
--- /dev/null
+++ b/libhardware/include/hardware/memtrack.h
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_MEMTRACK_H
+#define ANDROID_INCLUDE_HARDWARE_MEMTRACK_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define MEMTRACK_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+
+/**
+ * The id of this module
+ */
+#define MEMTRACK_HARDWARE_MODULE_ID "memtrack"
+
+/*
+ * The Memory Tracker HAL is designed to return information about device-specific
+ * memory usage. The primary goal is to be able to track memory that is not
+ * trackable in any other way, for example texture memory that is allocated by
+ * a process, but not mapped in to that process' address space.
+ * A secondary goal is to be able to categorize memory used by a process into
+ * GL, graphics, etc. All memory sizes should be in real memory usage,
+ * accounting for stride, bit depth, rounding up to page size, etc.
+ *
+ * A process collecting memory statistics will call getMemory for each
+ * combination of pid and memory type. For each memory type that it recognizes
+ * the HAL should fill out an array of memtrack_record structures breaking
+ * down the statistics of that memory type as much as possible. For example,
+ * getMemory(<pid>, MEMTRACK_TYPE_GL) might return:
+ * { { 4096, ACCOUNTED | PRIVATE | SYSTEM },
+ * { 40960, UNACCOUNTED | PRIVATE | SYSTEM },
+ * { 8192, ACCOUNTED | PRIVATE | DEDICATED },
+ * { 8192, UNACCOUNTED | PRIVATE | DEDICATED } }
+ * If the HAL could not differentiate between SYSTEM and DEDICATED memory, it
+ * could return:
+ * { { 12288, ACCOUNTED | PRIVATE },
+ * { 49152, UNACCOUNTED | PRIVATE } }
+ *
+ * Memory should not overlap between types. For example, a graphics buffer
+ * that has been mapped into the GPU as a surface should show up when
+ * MEMTRACK_TYPE_GRAPHICS is requested, and not when MEMTRACK_TYPE_GL
+ * is requested.
+ */
+
+enum memtrack_type {
+ MEMTRACK_TYPE_OTHER = 0,
+ MEMTRACK_TYPE_GL = 1,
+ MEMTRACK_TYPE_GRAPHICS = 2,
+ MEMTRACK_TYPE_MULTIMEDIA = 3,
+ MEMTRACK_TYPE_CAMERA = 4,
+ MEMTRACK_NUM_TYPES,
+};
+
+struct memtrack_record {
+ size_t size_in_bytes;
+ unsigned int flags;
+};
+
+/**
+ * Flags to differentiate memory that can already be accounted for in
+ * /proc/<pid>/smaps,
+ * (Shared_Clean + Shared_Dirty + Private_Clean + Private_Dirty = Size).
+ * In general, memory mapped in to a userspace process is accounted unless
+ * it was mapped with remap_pfn_range.
+ * Exactly one of these should be set.
+ */
+#define MEMTRACK_FLAG_SMAPS_ACCOUNTED (1 << 1)
+#define MEMTRACK_FLAG_SMAPS_UNACCOUNTED (1 << 2)
+
+/**
+ * Flags to differentiate memory shared across multiple processes vs. memory
+ * used by a single process. Only zero or one of these may be set in a record.
+ * If none are set, record is assumed to count shared + private memory.
+ */
+#define MEMTRACK_FLAG_SHARED (1 << 3)
+#define MEMTRACK_FLAG_SHARED_PSS (1 << 4) /* shared / num_procesess */
+#define MEMTRACK_FLAG_PRIVATE (1 << 5)
+
+/**
+ * Flags to differentiate memory taken from the kernel's allocation pool vs.
+ * memory that is dedicated to non-kernel allocations, for example a carveout
+ * or separate video memory. Only zero or one of these may be set in a record.
+ * If none are set, record is assumed to count system + dedicated memory.
+ */
+#define MEMTRACK_FLAG_SYSTEM (1 << 6)
+#define MEMTRACK_FLAG_DEDICATED (1 << 7)
+
+/**
+ * Flags to differentiate memory accessible by the CPU in non-secure mode vs.
+ * memory that is protected. Only zero or one of these may be set in a record.
+ * If none are set, record is assumed to count secure + nonsecure memory.
+ */
+#define MEMTRACK_FLAG_NONSECURE (1 << 8)
+#define MEMTRACK_FLAG_SECURE (1 << 9)
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+typedef struct memtrack_module {
+ struct hw_module_t common;
+
+ /**
+ * (*init)() performs memtrack management setup actions and is called
+ * once before any calls to getMemory().
+ * Returns 0 on success, -errno on error.
+ */
+ int (*init)(const struct memtrack_module *module);
+
+ /**
+ * (*getMemory)() expects an array of record objects and populates up to
+ * *num_record structures with the sizes of memory plus associated flags for
+ * that memory. It also updates *num_records with the total number of
+ * records it could return if *num_records was large enough when passed in.
+ * Returning records with size 0 is expected, the number of records should
+ * not vary between calls to getMemory for the same memory type, even
+ * for different pids.
+ *
+ * The caller will often call getMemory for a type and pid with
+ * *num_records == 0 to determine how many records to allocate room for,
+ * this case should be a fast-path in the HAL, returning a constant and
+ * not querying any kernel files. If *num_records passed in is 0,
+ * then records may be NULL.
+ *
+ * This function must be thread-safe, it may get called from multiple
+ * threads at the same time.
+ *
+ * Returns 0 on success, -ENODEV if the type is not supported, -errno
+ * on other errors.
+ */
+ int (*getMemory)(const struct memtrack_module *module,
+ pid_t pid,
+ int type,
+ struct memtrack_record *records,
+ size_t *num_records);
+} memtrack_module_t;
+
+__END_DECLS
+
+#endif // ANDROID_INCLUDE_HARDWARE_MEMTRACK_H
diff --git a/libhardware/include/hardware/nfc.h b/libhardware/include/hardware/nfc.h
new file mode 100644
index 0000000..58d33d9
--- /dev/null
+++ b/libhardware/include/hardware/nfc.h
@@ -0,0 +1,301 @@
+/*
+ * Copyright (C) 2011, 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_NFC_HAL_INTERFACE_H
+#define ANDROID_NFC_HAL_INTERFACE_H
+
+#include <stdint.h>
+#include <strings.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+
+/* NFC device HAL for NCI-based NFC controllers.
+ *
+ * This HAL allows NCI silicon vendors to make use
+ * of the core NCI stack in Android for their own silicon.
+ *
+ * The responibilities of the NCI HAL implementation
+ * are as follows:
+ *
+ * - Implement the transport to the NFC controller
+ * - Implement each of the HAL methods specified below as applicable to their silicon
+ * - Pass up received NCI messages from the controller to the stack
+ *
+ * A simplified timeline of NCI HAL method calls:
+ * 1) Core NCI stack calls open()
+ * 2) Core NCI stack executes CORE_RESET and CORE_INIT through calls to write()
+ * 3) Core NCI stack calls core_initialized() to allow HAL to do post-init configuration
+ * 4) Core NCI stack calls pre_discover() to allow HAL to prepare for RF discovery
+ * 5) Core NCI stack starts discovery through calls to write()
+ * 6) Core NCI stack stops discovery through calls to write() (e.g. screen turns off)
+ * 7) Core NCI stack calls pre_discover() to prepare for RF discovery (e.g. screen turned back on)
+ * 8) Core NCI stack starts discovery through calls to write()
+ * ...
+ * ...
+ * 9) Core NCI stack calls close()
+ */
+#define NFC_NCI_HARDWARE_MODULE_ID "nfc_nci"
+#define NFC_NCI_BCM2079X_HARDWARE_MODULE_ID "nfc_nci.bcm2079x"
+#define NFC_NCI_CONTROLLER "nci"
+
+/*
+ * nfc_nci_module_t should contain module-specific parameters
+ */
+typedef struct nfc_nci_module_t {
+ /**
+ * Common methods of the NFC NCI module. This *must* be the first member of
+ * nfc_nci_module_t as users of this structure will cast a hw_module_t to
+ * nfc_nci_module_t pointer in contexts where it's known the hw_module_t references a
+ * nfc_nci_module_t.
+ */
+ struct hw_module_t common;
+} nfc_nci_module_t;
+
+/*
+ * HAL events that can be passed back to the stack
+ */
+typedef uint8_t nfc_event_t;
+
+enum {
+ HAL_NFC_OPEN_CPLT_EVT = 0x00,
+ HAL_NFC_CLOSE_CPLT_EVT = 0x01,
+ HAL_NFC_POST_INIT_CPLT_EVT = 0x02,
+ HAL_NFC_PRE_DISCOVER_CPLT_EVT = 0x03,
+ HAL_NFC_REQUEST_CONTROL_EVT = 0x04,
+ HAL_NFC_RELEASE_CONTROL_EVT = 0x05,
+ HAL_NFC_ERROR_EVT = 0x06
+};
+
+/*
+ * Allowed status return values for each of the HAL methods
+ */
+typedef uint8_t nfc_status_t;
+
+enum {
+ HAL_NFC_STATUS_OK = 0x00,
+ HAL_NFC_STATUS_FAILED = 0x01,
+ HAL_NFC_STATUS_ERR_TRANSPORT = 0x02,
+ HAL_NFC_STATUS_ERR_CMD_TIMEOUT = 0x03,
+ HAL_NFC_STATUS_REFUSED = 0x04
+};
+
+/*
+ * The callback passed in from the NFC stack that the HAL
+ * can use to pass events back to the stack.
+ */
+typedef void (nfc_stack_callback_t) (nfc_event_t event, nfc_status_t event_status);
+
+/*
+ * The callback passed in from the NFC stack that the HAL
+ * can use to pass incomming data to the stack.
+ */
+typedef void (nfc_stack_data_callback_t) (uint16_t data_len, uint8_t* p_data);
+
+/* nfc_nci_device_t starts with a hw_device_t struct,
+ * followed by device-specific methods and members.
+ *
+ * All methods in the NCI HAL are asynchronous.
+ */
+typedef struct nfc_nci_device {
+ /**
+ * Common methods of the NFC NCI device. This *must* be the first member of
+ * nfc_nci_device_t as users of this structure will cast a hw_device_t to
+ * nfc_nci_device_t pointer in contexts where it's known the hw_device_t references a
+ * nfc_nci_device_t.
+ */
+ struct hw_device_t common;
+ /*
+ * (*open)() Opens the NFC controller device and performs initialization.
+ * This may include patch download and other vendor-specific initialization.
+ *
+ * If open completes successfully, the controller should be ready to perform
+ * NCI initialization - ie accept CORE_RESET and subsequent commands through
+ * the write() call.
+ *
+ * If open() returns 0, the NCI stack will wait for a HAL_NFC_OPEN_CPLT_EVT
+ * before continuing.
+ *
+ * If open() returns any other value, the NCI stack will stop.
+ *
+ */
+ int (*open)(const struct nfc_nci_device *p_dev, nfc_stack_callback_t *p_cback,
+ nfc_stack_data_callback_t *p_data_cback);
+
+ /*
+ * (*write)() Performs an NCI write.
+ *
+ * This method may queue writes and return immediately. The only
+ * requirement is that the writes are executed in order.
+ */
+ int (*write)(const struct nfc_nci_device *p_dev, uint16_t data_len, const uint8_t *p_data);
+
+ /*
+ * (*core_initialized)() is called after the CORE_INIT_RSP is received from the NFCC.
+ * At this time, the HAL can do any chip-specific configuration.
+ *
+ * If core_initialized() returns 0, the NCI stack will wait for a HAL_NFC_POST_INIT_CPLT_EVT
+ * before continuing.
+ *
+ * If core_initialized() returns any other value, the NCI stack will continue
+ * immediately.
+ */
+ int (*core_initialized)(const struct nfc_nci_device *p_dev, uint8_t* p_core_init_rsp_params);
+
+ /*
+ * (*pre_discover)() Is called every time before starting RF discovery.
+ * It is a good place to do vendor-specific configuration that must be
+ * performed every time RF discovery is about to be started.
+ *
+ * If pre_discover() returns 0, the NCI stack will wait for a HAL_NFC_PRE_DISCOVER_CPLT_EVT
+ * before continuing.
+ *
+ * If pre_discover() returns any other value, the NCI stack will start
+ * RF discovery immediately.
+ */
+ int (*pre_discover)(const struct nfc_nci_device *p_dev);
+
+ /*
+ * (*close)() Closed the NFC controller. Should free all resources.
+ */
+ int (*close)(const struct nfc_nci_device *p_dev);
+
+ /*
+ * (*control_granted)() Grant HAL the exclusive control to send NCI commands.
+ * Called in response to HAL_REQUEST_CONTROL_EVT.
+ * Must only be called when there are no NCI commands pending.
+ * HAL_RELEASE_CONTROL_EVT will notify when HAL no longer needs exclusive control.
+ */
+ int (*control_granted)(const struct nfc_nci_device *p_dev);
+
+ /*
+ * (*power_cycle)() Restart controller by power cyle;
+ * HAL_OPEN_CPLT_EVT will notify when operation is complete.
+ */
+ int (*power_cycle)(const struct nfc_nci_device *p_dev);
+} nfc_nci_device_t;
+
+/*
+ * Convenience methods that the NFC stack can use to open
+ * and close an NCI device
+ */
+static inline int nfc_nci_open(const struct hw_module_t* module,
+ nfc_nci_device_t** dev) {
+ return module->methods->open(module, NFC_NCI_CONTROLLER,
+ (struct hw_device_t**) dev);
+}
+
+static inline int nfc_nci_close(nfc_nci_device_t* dev) {
+ return dev->common.close(&dev->common);
+}
+/*
+ * End NFC NCI HAL
+ */
+
+/*
+ * This is a limited NFC HAL for NXP PN544-based devices.
+ * This HAL as Android is moving to
+ * an NCI-based NFC stack.
+ *
+ * All NCI-based NFC controllers should use the NFC-NCI
+ * HAL instead.
+ * Begin PN544 specific HAL
+ */
+#define NFC_HARDWARE_MODULE_ID "nfc"
+
+#define NFC_PN544_CONTROLLER "pn544"
+
+typedef struct nfc_module_t {
+ /**
+ * Common methods of the NFC NXP PN544 module. This *must* be the first member of
+ * nfc_module_t as users of this structure will cast a hw_module_t to
+ * nfc_module_t pointer in contexts where it's known the hw_module_t references a
+ * nfc_module_t.
+ */
+ struct hw_module_t common;
+} nfc_module_t;
+
+/*
+ * PN544 linktypes.
+ * UART
+ * I2C
+ * USB (uses UART DAL)
+ */
+typedef enum {
+ PN544_LINK_TYPE_UART,
+ PN544_LINK_TYPE_I2C,
+ PN544_LINK_TYPE_USB,
+ PN544_LINK_TYPE_INVALID,
+} nfc_pn544_linktype;
+
+typedef struct {
+ /**
+ * Common methods of the NFC NXP PN544 device. This *must* be the first member of
+ * nfc_pn544_device_t as users of this structure will cast a hw_device_t to
+ * nfc_pn544_device_t pointer in contexts where it's known the hw_device_t references a
+ * nfc_pn544_device_t.
+ */
+ struct hw_device_t common;
+
+ /* The number of EEPROM registers to write */
+ uint32_t num_eeprom_settings;
+
+ /* The actual EEPROM settings
+ * For PN544, each EEPROM setting is a 4-byte entry,
+ * of the format [0x00, addr_msb, addr_lsb, value].
+ */
+ uint8_t* eeprom_settings;
+
+ /* The link type to which the PN544 is connected */
+ nfc_pn544_linktype linktype;
+
+ /* The device node to which the PN544 is connected */
+ const char* device_node;
+
+ /* On Crespo we had an I2C issue that would cause us to sometimes read
+ * the I2C slave address (0x57) over the bus. libnfc contains
+ * a hack to ignore this byte and try to read the length byte
+ * again.
+ * Set to 0 to disable the workaround, 1 to enable it.
+ */
+ uint8_t enable_i2c_workaround;
+ /* I2C slave address. Multiple I2C addresses are
+ * possible for PN544 module. Configure address according to
+ * board design.
+ */
+ uint8_t i2c_device_address;
+} nfc_pn544_device_t;
+
+static inline int nfc_pn544_open(const struct hw_module_t* module,
+ nfc_pn544_device_t** dev) {
+ return module->methods->open(module, NFC_PN544_CONTROLLER,
+ (struct hw_device_t**) dev);
+}
+
+static inline int nfc_pn544_close(nfc_pn544_device_t* dev) {
+ return dev->common.close(&dev->common);
+}
+/*
+ * End PN544 specific HAL
+ */
+
+__END_DECLS
+
+#endif // ANDROID_NFC_HAL_INTERFACE_H
diff --git a/libhardware/include/hardware/nfc_tag.h b/libhardware/include/hardware/nfc_tag.h
new file mode 100644
index 0000000..040a07d
--- /dev/null
+++ b/libhardware/include/hardware/nfc_tag.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_NFC_TAG_HAL_INTERFACE_H
+#define ANDROID_NFC_TAG_HAL_INTERFACE_H
+
+#include <stdint.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+/*
+ * HAL for programmable NFC tags.
+ *
+ */
+
+#define NFC_TAG_HARDWARE_MODULE_ID "nfc_tag"
+#define NFC_TAG_ID "tag"
+
+typedef struct nfc_tag_module_t {
+ /**
+ * Common methods of the NFC tag module. This *must* be the first member of
+ * nfc_tag_module_t as users of this structure will cast a hw_module_t to
+ * nfc_tag_module_t pointer in contexts where it's known the hw_module_t references a
+ * nfc_tag_module_t.
+ */
+ struct hw_module_t common;
+} nfc_tag_module_t;
+
+typedef struct nfc_tag_device {
+ /**
+ * Common methods of the NFC tag device. This *must* be the first member of
+ * nfc_tag_device_t as users of this structure will cast a hw_device_t to
+ * nfc_tag_device_t pointer in contexts where it's known the hw_device_t references a
+ * nfc_tag_device_t.
+ */
+ struct hw_device_t common;
+
+ /**
+ * Initialize the NFC tag.
+ *
+ * The driver must:
+ * * Set the static lock bytes to read only
+ * * Configure the Capability Container to disable write acess
+ * eg: 0xE1 0x10 <size> 0x0F
+ *
+ * This function is called once before any calls to setContent().
+ *
+ * Return 0 on success or -errno on error.
+ */
+ int (*init)(const struct nfc_tag_device *dev);
+
+ /**
+ * Set the NFC tag content.
+ *
+ * The driver must write <data> in the data area of the tag starting at
+ * byte 0 of block 4 and zero the rest of the data area.
+ *
+ * Returns 0 on success or -errno on error.
+ */
+ int (*setContent)(const struct nfc_tag_device *dev, const uint8_t *data, size_t len);
+
+ /**
+ * Returns the memory size of the data area.
+ */
+ int (*getMemorySize)(const struct nfc_tag_device *dev);
+} nfc_tag_device_t;
+
+static inline int nfc_tag_open(const struct hw_module_t* module,
+ nfc_tag_device_t** dev) {
+ return module->methods->open(module, NFC_TAG_ID,
+ (struct hw_device_t**)dev);
+}
+
+static inline int nfc_tag_close(nfc_tag_device_t* dev) {
+ return dev->common.close(&dev->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_NFC_TAG_HAL_INTERFACE_H
diff --git a/libhardware/include/hardware/nvram.h b/libhardware/include/hardware/nvram.h
new file mode 100644
index 0000000..859ea47
--- /dev/null
+++ b/libhardware/include/hardware/nvram.h
@@ -0,0 +1,338 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_NVRAM_H
+#define ANDROID_HARDWARE_NVRAM_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+
+#include <hardware/hardware.h>
+#include <hardware/nvram_defs.h>
+
+__BEGIN_DECLS
+
+/* The id of this module. */
+#define NVRAM_HARDWARE_MODULE_ID "nvram"
+#define NVRAM_HARDWARE_DEVICE_ID "nvram-dev"
+
+/* The version of this module. */
+#define NVRAM_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+#define NVRAM_DEVICE_API_VERSION_1_1 HARDWARE_DEVICE_API_VERSION(1, 1)
+
+struct nvram_module {
+ /**
+ * Common methods of the nvram_module. This *must* be the first member of
+ * nvram_module as users of this structure will cast a hw_module_t to
+ * nvram_module pointer in contexts where it's known the hw_module_t
+ * references a nvram_module.
+ */
+ hw_module_t common;
+
+ /* There are no module methods other than the common ones. */
+};
+
+struct nvram_device {
+ /**
+ * Common methods of the nvram_device. This *must* be the first member of
+ * nvram_device as users of this structure will cast a hw_device_t to
+ * nvram_device pointer in contexts where it's known the hw_device_t
+ * references a nvram_device.
+ */
+ struct hw_device_t common;
+
+ /**
+ * Outputs the total number of bytes available in NVRAM. This will
+ * always be at least 2048. If an implementation does not know the
+ * total size it may provide an estimate or 2048.
+ *
+ * device - The nvram_device instance.
+ * total_size - Receives the output. Cannot be NULL.
+ */
+ nvram_result_t (*get_total_size_in_bytes)(const struct nvram_device* device,
+ uint64_t* total_size);
+
+ /**
+ * Outputs the unallocated number of bytes available in NVRAM. If an
+ * implementation does not know the available size it may provide an
+ * estimate or the total size.
+ *
+ * device - The nvram_device instance.
+ * available_size - Receives the output. Cannot be NULL.
+ */
+ nvram_result_t (*get_available_size_in_bytes)(
+ const struct nvram_device* device, uint64_t* available_size);
+
+ /**
+ * Outputs the maximum number of bytes that can be allocated for a single
+ * space. This will always be at least 32. If an implementation does not
+ * limit the maximum size it may provide the total size.
+ *
+ * device - The nvram_device instance.
+ * max_space_size - Receives the output. Cannot be NULL.
+ */
+ nvram_result_t (*get_max_space_size_in_bytes)(
+ const struct nvram_device* device, uint64_t* max_space_size);
+
+ /**
+ * Outputs the maximum total number of spaces that may be allocated.
+ * This will always be at least 8. Outputs NV_UNLIMITED_SPACES if any
+ * number of spaces are supported (limited only to available NVRAM
+ * bytes).
+ *
+ * device - The nvram_device instance.
+ * num_spaces - Receives the output. Cannot be NULL.
+ */
+ nvram_result_t (*get_max_spaces)(const struct nvram_device* device,
+ uint32_t* num_spaces);
+
+ /**
+ * Outputs a list of created space indices. If |max_list_size| is
+ * 0, only |list_size| is populated.
+ *
+ * device - The nvram_device instance.
+ * max_list_size - The number of items in the |space_index_list|
+ * array.
+ * space_index_list - Receives the list of created spaces up to the
+ * given |max_list_size|. May be NULL if
+ * |max_list_size| is 0.
+ * list_size - Receives the number of items populated in
+ * |space_index_list|, or the number of items available
+ * if |space_index_list| is NULL.
+ */
+ nvram_result_t (*get_space_list)(const struct nvram_device* device,
+ uint32_t max_list_size,
+ uint32_t* space_index_list,
+ uint32_t* list_size);
+
+ /**
+ * Outputs the size, in bytes, of a given space.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * size - Receives the output. Cannot be NULL.
+ */
+ nvram_result_t (*get_space_size)(const struct nvram_device* device,
+ uint32_t index, uint64_t* size);
+
+ /**
+ * Outputs the list of controls associated with a given space.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * max_list_size - The number of items in the |control_list| array.
+ * control_list - Receives the list of controls up to the given
+ * |max_list_size|. May be NULL if |max_list_size|
+ * is 0.
+ * list_size - Receives the number of items populated in
+ * |control_list|, or the number of items available if
+ * |control_list| is NULL.
+ */
+ nvram_result_t (*get_space_controls)(const struct nvram_device* device,
+ uint32_t index, uint32_t max_list_size,
+ nvram_control_t* control_list,
+ uint32_t* list_size);
+
+ /**
+ * Outputs whether locks are enabled for the given space. When a lock
+ * is enabled, the operation is disabled and any attempt to perform that
+ * operation will result in NV_RESULT_OPERATION_DISABLED.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * write_lock_enabled - Will be set to non-zero iff write
+ * operations are currently disabled.
+ * read_lock_enabled - Will be set to non-zero iff read operations
+ * are currently disabled.
+ */
+ nvram_result_t (*is_space_locked)(const struct nvram_device* device,
+ uint32_t index, int* write_lock_enabled,
+ int* read_lock_enabled);
+
+ /**
+ * Creates a new space with the given index, size, controls, and
+ * authorization value.
+ *
+ * device - The nvram_device instance.
+ * index - An index for the new space. The index can be any 32-bit
+ * value but must not already be assigned to an existing
+ * space.
+ * size_in_bytes - The number of bytes to allocate for the space.
+ * control_list - An array of controls to enforce for the space.
+ * list_size - The number of items in |control_list|.
+ * authorization_value - If |control_list| contains
+ * NV_CONTROL_READ_AUTHORIZATION and / or
+ * NV_CONTROL_WRITE_AUTHORIZATION, then this
+ * parameter provides the authorization value
+ * for these policies (if both controls are
+ * set then this value applies to both).
+ * Otherwise, this value is ignored and may
+ * be NULL.
+ * authorization_value_size - The number of bytes in
+ * |authorization_value|.
+ */
+ nvram_result_t (*create_space)(const struct nvram_device* device,
+ uint32_t index, uint64_t size_in_bytes,
+ const nvram_control_t* control_list,
+ uint32_t list_size,
+ const uint8_t* authorization_value,
+ uint32_t authorization_value_size);
+
+ /**
+ * Deletes a space.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * authorization_value - If the space has the
+ * NV_CONTROL_WRITE_AUTHORIZATION policy,
+ * then this parameter provides the
+ * authorization value. Otherwise, this value
+ * is ignored and may be NULL.
+ * authorization_value_size - The number of bytes in
+ * |authorization_value|.
+ */
+ nvram_result_t (*delete_space)(const struct nvram_device* device,
+ uint32_t index,
+ const uint8_t* authorization_value,
+ uint32_t authorization_value_size);
+
+ /**
+ * Disables any further creation of spaces until the next full device
+ * reset (as in factory reset, not reboot). Subsequent calls to
+ * NV_CreateSpace should return NV_RESULT_OPERATION_DISABLED.
+ *
+ * device - The nvram_device instance.
+ */
+ nvram_result_t (*disable_create)(const struct nvram_device* device);
+
+ /**
+ * Writes the contents of a space. If the space is configured with
+ * NV_CONTROL_WRITE_EXTEND then the input data is used to extend the
+ * current data.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * buffer - The data to write.
+ * buffer_size - The number of bytes in |buffer|. If this is less
+ * than the size of the space, the remaining bytes
+ * will be set to 0x00. If this is more than the size
+ * of the space, returns NV_RESULT_INVALID_PARAMETER.
+ * authorization_value - If the space has the
+ * NV_CONTROL_WRITE_AUTHORIZATION policy,
+ * then this parameter provides the
+ * authorization value. Otherwise, this value
+ * is ignored and may be NULL.
+ * authorization_value_size - The number of bytes in
+ * |authorization_value|.
+ */
+ nvram_result_t (*write_space)(const struct nvram_device* device,
+ uint32_t index, const uint8_t* buffer,
+ uint64_t buffer_size,
+ const uint8_t* authorization_value,
+ uint32_t authorization_value_size);
+
+ /**
+ * Reads the contents of a space. If the space has never been
+ * written, all bytes read will be 0x00.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * num_bytes_to_read - The number of bytes to read; |buffer| must
+ * be large enough to hold this many bytes. If
+ * this is more than the size of the space, the
+ * entire space is read. If this is less than
+ * the size of the space, the first bytes in
+ * the space are read.
+ * authorization_value - If the space has the
+ * NV_CONTROL_READ_AUTHORIZATION policy, then
+ * this parameter provides the authorization
+ * value. Otherwise, this value is ignored
+ * and may be NULL.
+ * authorization_value_size - The number of bytes in
+ * |authorization_value|.
+ * buffer - Receives the data read from the space. Must be at least
+ * |num_bytes_to_read| bytes in size.
+ * bytes_read - The number of bytes read. If NV_RESULT_SUCCESS is
+ * returned this will be set to the smaller of
+ * |num_bytes_to_read| or the size of the space.
+ */
+ nvram_result_t (*read_space)(const struct nvram_device* device,
+ uint32_t index, uint64_t num_bytes_to_read,
+ const uint8_t* authorization_value,
+ uint32_t authorization_value_size,
+ uint8_t* buffer, uint64_t* bytes_read);
+
+ /**
+ * Enables a write lock for the given space according to its policy.
+ * If the space does not have NV_CONTROL_PERSISTENT_WRITE_LOCK or
+ * NV_CONTROL_BOOT_WRITE_LOCK set then this function has no effect
+ * and may return an error.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * authorization_value - If the space has the
+ * NV_CONTROL_WRITE_AUTHORIZATION policy,
+ * then this parameter provides the
+ * authorization value. Otherwise, this value
+ * is ignored and may be NULL.
+ * authorization_value_size - The number of bytes in
+ * |authorization_value|.
+ */
+ nvram_result_t (*enable_write_lock)(const struct nvram_device* device,
+ uint32_t index,
+ const uint8_t* authorization_value,
+ uint32_t authorization_value_size);
+
+ /**
+ * Enables a read lock for the given space according to its policy.
+ * If the space does not have NV_CONTROL_BOOT_READ_LOCK set then this
+ * function has no effect and may return an error.
+ *
+ * device - The nvram_device instance.
+ * index - The space index.
+ * authorization_value - If the space has the
+ * NV_CONTROL_READ_AUTHORIZATION policy, then
+ * this parameter provides the authorization
+ * value. (Note that there is no requirement
+ * for write access in order to lock for
+ * reading. A read lock is always volatile.)
+ * Otherwise, this value is ignored and may
+ * be NULL.
+ * authorization_value_size - The number of bytes in
+ * |authorization_value|.
+ */
+ nvram_result_t (*enable_read_lock)(const struct nvram_device* device,
+ uint32_t index,
+ const uint8_t* authorization_value,
+ uint32_t authorization_value_size);
+};
+
+typedef struct nvram_device nvram_device_t;
+
+/* Convenience API for opening and closing nvram devices. */
+static inline int nvram_open(const struct hw_module_t* module,
+ nvram_device_t** device) {
+ return module->methods->open(module, NVRAM_HARDWARE_DEVICE_ID,
+ (struct hw_device_t**)device);
+}
+
+static inline int nvram_close(nvram_device_t* device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_HARDWARE_NVRAM_H
diff --git a/libhardware/include/hardware/nvram_defs.h b/libhardware/include/hardware/nvram_defs.h
new file mode 100644
index 0000000..0256a3c
--- /dev/null
+++ b/libhardware/include/hardware/nvram_defs.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * This file contains data type definitions and constants that are useful to
+ * code interacting with and implementing the NVRAM HAL, even though it doesn't
+ * use the actual NVRAM HAL module interface. Keeping this in a separate file
+ * simplifies inclusion in low-level code which can't easily include the heavier
+ * hardware.h due to lacking standard headers.
+ */
+
+#ifndef ANDROID_HARDWARE_NVRAM_DEFS_H
+#define ANDROID_HARDWARE_NVRAM_DEFS_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+/* Values returned by nvram_device methods. */
+typedef uint32_t nvram_result_t;
+
+const nvram_result_t NV_RESULT_SUCCESS = 0;
+const nvram_result_t NV_RESULT_INTERNAL_ERROR = 1;
+const nvram_result_t NV_RESULT_ACCESS_DENIED = 2;
+const nvram_result_t NV_RESULT_INVALID_PARAMETER = 3;
+const nvram_result_t NV_RESULT_SPACE_DOES_NOT_EXIST = 4;
+const nvram_result_t NV_RESULT_SPACE_ALREADY_EXISTS = 5;
+const nvram_result_t NV_RESULT_OPERATION_DISABLED = 6;
+
+/* Values describing available access controls. */
+typedef uint32_t nvram_control_t;
+
+const nvram_control_t NV_CONTROL_PERSISTENT_WRITE_LOCK = 1;
+const nvram_control_t NV_CONTROL_BOOT_WRITE_LOCK = 2;
+const nvram_control_t NV_CONTROL_BOOT_READ_LOCK = 3;
+const nvram_control_t NV_CONTROL_WRITE_AUTHORIZATION = 4;
+const nvram_control_t NV_CONTROL_READ_AUTHORIZATION = 5;
+const nvram_control_t NV_CONTROL_WRITE_EXTEND = 6;
+
+const uint32_t NV_UNLIMITED_SPACES = 0xFFFFFFFF;
+
+#ifdef __cplusplus
+} // extern "C"
+#endif // __cplusplus
+
+#endif // ANDROID_HARDWARE_NVRAM_DEFS_H
diff --git a/libhardware/include/hardware/power.h b/libhardware/include/hardware/power.h
new file mode 100644
index 0000000..10612f3
--- /dev/null
+++ b/libhardware/include/hardware/power.h
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INCLUDE_HARDWARE_POWER_H
+#define ANDROID_INCLUDE_HARDWARE_POWER_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define POWER_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+#define POWER_MODULE_API_VERSION_0_2 HARDWARE_MODULE_API_VERSION(0, 2)
+#define POWER_MODULE_API_VERSION_0_3 HARDWARE_MODULE_API_VERSION(0, 3)
+
+/**
+ * The id of this module
+ */
+#define POWER_HARDWARE_MODULE_ID "power"
+
+/*
+ * Power hint identifiers passed to (*powerHint)
+ */
+
+typedef enum {
+ POWER_HINT_VSYNC = 0x00000001,
+ POWER_HINT_INTERACTION = 0x00000002,
+ /* DO NOT USE POWER_HINT_VIDEO_ENCODE/_DECODE! They will be removed in
+ * KLP.
+ */
+ POWER_HINT_VIDEO_ENCODE = 0x00000003,
+ POWER_HINT_VIDEO_DECODE = 0x00000004,
+ POWER_HINT_LOW_POWER = 0x00000005
+} power_hint_t;
+
+typedef enum {
+ POWER_FEATURE_DOUBLE_TAP_TO_WAKE = 0x00000001
+} feature_t;
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+typedef struct power_module {
+ struct hw_module_t common;
+
+ /*
+ * (*init)() performs power management setup actions at runtime
+ * startup, such as to set default cpufreq parameters. This is
+ * called only by the Power HAL instance loaded by
+ * PowerManagerService.
+ */
+ void (*init)(struct power_module *module);
+
+ /*
+ * (*setInteractive)() performs power management actions upon the
+ * system entering interactive state (that is, the system is awake
+ * and ready for interaction, often with UI devices such as
+ * display and touchscreen enabled) or non-interactive state (the
+ * system appears asleep, display usually turned off). The
+ * non-interactive state is usually entered after a period of
+ * inactivity, in order to conserve battery power during
+ * such inactive periods.
+ *
+ * Typical actions are to turn on or off devices and adjust
+ * cpufreq parameters. This function may also call the
+ * appropriate interfaces to allow the kernel to suspend the
+ * system to low-power sleep state when entering non-interactive
+ * state, and to disallow low-power suspend when the system is in
+ * interactive state. When low-power suspend state is allowed, the
+ * kernel may suspend the system whenever no wakelocks are held.
+ *
+ * on is non-zero when the system is transitioning to an
+ * interactive / awake state, and zero when transitioning to a
+ * non-interactive / asleep state.
+ *
+ * This function is called to enter non-interactive state after
+ * turning off the screen (if present), and called to enter
+ * interactive state prior to turning on the screen.
+ */
+ void (*setInteractive)(struct power_module *module, int on);
+
+ /*
+ * (*powerHint) is called to pass hints on power requirements, which
+ * may result in adjustment of power/performance parameters of the
+ * cpufreq governor and other controls. The possible hints are:
+ *
+ * POWER_HINT_VSYNC
+ *
+ * Foreground app has started or stopped requesting a VSYNC pulse
+ * from SurfaceFlinger. If the app has started requesting VSYNC
+ * then CPU and GPU load is expected soon, and it may be appropriate
+ * to raise speeds of CPU, memory bus, etc. The data parameter is
+ * non-zero to indicate VSYNC pulse is now requested, or zero for
+ * VSYNC pulse no longer requested.
+ *
+ * POWER_HINT_INTERACTION
+ *
+ * User is interacting with the device, for example, touchscreen
+ * events are incoming. CPU and GPU load may be expected soon,
+ * and it may be appropriate to raise speeds of CPU, memory bus,
+ * etc. The data parameter is the estimated length of the interaction
+ * in milliseconds, or 0 if unknown.
+ *
+ * POWER_HINT_LOW_POWER
+ *
+ * Low power mode is activated or deactivated. Low power mode
+ * is intended to save battery at the cost of performance. The data
+ * parameter is non-zero when low power mode is activated, and zero
+ * when deactivated.
+ *
+ * A particular platform may choose to ignore any hint.
+ *
+ * availability: version 0.2
+ *
+ */
+ void (*powerHint)(struct power_module *module, power_hint_t hint,
+ void *data);
+
+ /*
+ * (*setFeature) is called to turn on or off a particular feature
+ * depending on the state parameter. The possible features are:
+ *
+ * FEATURE_DOUBLE_TAP_TO_WAKE
+ *
+ * Enabling/Disabling this feature will allow/disallow the system
+ * to wake up by tapping the screen twice.
+ *
+ * availability: version 0.3
+ *
+ */
+ void (*setFeature)(struct power_module *module, feature_t feature, int state);
+
+} power_module_t;
+
+
+__END_DECLS
+
+#endif // ANDROID_INCLUDE_HARDWARE_POWER_H
diff --git a/libhardware/include/hardware/radio.h b/libhardware/include/hardware/radio.h
new file mode 100644
index 0000000..145deb5
--- /dev/null
+++ b/libhardware/include/hardware/radio.h
@@ -0,0 +1,298 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <system/radio.h>
+#include <hardware/hardware.h>
+
+#ifndef ANDROID_RADIO_HAL_H
+#define ANDROID_RADIO_HAL_H
+
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define RADIO_HARDWARE_MODULE_ID "radio"
+
+/**
+ * Name of the audio devices to open
+ */
+#define RADIO_HARDWARE_DEVICE "radio_hw_device"
+
+#define RADIO_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define RADIO_MODULE_API_VERSION_CURRENT RADIO_MODULE_API_VERSION_1_0
+
+
+#define RADIO_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION(1, 0)
+#define RADIO_DEVICE_API_VERSION_CURRENT RADIO_DEVICE_API_VERSION_1_0
+
+/**
+ * List of known radio HAL modules. This is the base name of the radio HAL
+ * library composed of the "radio." prefix, one of the base names below and
+ * a suffix specific to the device.
+ * E.g: radio.fm.default.so
+ */
+
+#define RADIO_HARDWARE_MODULE_ID_FM "fm" /* corresponds to RADIO_CLASS_AM_FM */
+#define RADIO_HARDWARE_MODULE_ID_SAT "sat" /* corresponds to RADIO_CLASS_SAT */
+#define RADIO_HARDWARE_MODULE_ID_DT "dt" /* corresponds to RADIO_CLASS_DT */
+
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+struct radio_module {
+ struct hw_module_t common;
+};
+
+/*
+ * Callback function called by the HAL when one of the following occurs:
+ * - event RADIO_EVENT_HW_FAILURE: radio chip of driver failure requiring
+ * closing and reopening of the tuner interface.
+ * - event RADIO_EVENT_CONFIG: new configuration applied in response to open_tuner(),
+ * or set_configuration(). The event status is 0 (no error) if the configuration has been applied,
+ * -EINVAL is not or -ETIMEDOUT in case of time out.
+ * - event RADIO_EVENT_TUNED: tune locked on new station/frequency following scan(),
+ * step(), tune() or auto AF switching. The event status is 0 (no error) if in tune,
+ * -EINVAL is not tuned and data in radio_program_info is not valid or -ETIMEDOUT if scan()
+ * timed out.
+ * - event RADIO_EVENT_TA: at the beginning and end of traffic announcement if current
+ * configuration enables TA.
+ * - event RADIO_EVENT_AF: after automatic switching to alternate frequency if current
+ * configuration enables AF switching.
+ * - event RADIO_EVENT_ANTENNA: when the antenna is connected or disconnected.
+ * - event RADIO_EVENT_METADATA: when new meta data are received from the tuned station.
+ * The callback MUST NOT be called synchronously while executing a HAL function but from
+ * a separate thread.
+ */
+typedef void (*radio_callback_t)(radio_hal_event_t *event, void *cookie);
+
+/* control interface for a radio tuner */
+struct radio_tuner {
+ /*
+ * Apply current radio band configuration (band, range, channel spacing ...).
+ *
+ * arguments:
+ * - config: the band configuration to apply
+ *
+ * returns:
+ * 0 if configuration could be applied
+ * -EINVAL if configuration requested is invalid
+ *
+ * Automatically cancels pending scan, step or tune.
+ *
+ * Callback function with event RADIO_EVENT_CONFIG MUST be called once the
+ * configuration is applied or a failure occurs or after a time out.
+ */
+ int (*set_configuration)(const struct radio_tuner *tuner,
+ const radio_hal_band_config_t *config);
+
+ /*
+ * Retrieve current radio band configuration.
+ *
+ * arguments:
+ * - config: where to return the band configuration
+ *
+ * returns:
+ * 0 if valid configuration is returned
+ * -EINVAL if invalid arguments are passed
+ */
+ int (*get_configuration)(const struct radio_tuner *tuner,
+ radio_hal_band_config_t *config);
+
+ /*
+ * Start scanning up to next valid station.
+ * Must be called when a valid configuration has been applied.
+ *
+ * arguments:
+ * - direction: RADIO_DIRECTION_UP or RADIO_DIRECTION_DOWN
+ * - skip_sub_channel: valid for HD radio or digital radios only: ignore sub channels
+ * (e.g SPS for HD radio).
+ *
+ * returns:
+ * 0 if scan successfully started
+ * -ENOSYS if called out of sequence
+ * -ENODEV if another error occurs
+ *
+ * Automatically cancels pending scan, step or tune.
+ *
+ * Callback function with event RADIO_EVENT_TUNED MUST be called once
+ * locked on a station or after a time out or full frequency scan if
+ * no station found. The event status should indicate if a valid station
+ * is tuned or not.
+ */
+ int (*scan)(const struct radio_tuner *tuner,
+ radio_direction_t direction, bool skip_sub_channel);
+
+ /*
+ * Move one channel spacing up or down.
+ * Must be called when a valid configuration has been applied.
+ *
+ * arguments:
+ * - direction: RADIO_DIRECTION_UP or RADIO_DIRECTION_DOWN
+ * - skip_sub_channel: valid for HD radio or digital radios only: ignore sub channels
+ * (e.g SPS for HD radio).
+ *
+ * returns:
+ * 0 if step successfully started
+ * -ENOSYS if called out of sequence
+ * -ENODEV if another error occurs
+ *
+ * Automatically cancels pending scan, step or tune.
+ *
+ * Callback function with event RADIO_EVENT_TUNED MUST be called once
+ * step completed or after a time out. The event status should indicate
+ * if a valid station is tuned or not.
+ */
+ int (*step)(const struct radio_tuner *tuner,
+ radio_direction_t direction, bool skip_sub_channel);
+
+ /*
+ * Tune to specified frequency.
+ * Must be called when a valid configuration has been applied.
+ *
+ * arguments:
+ * - channel: channel to tune to. A frequency in kHz for AM/FM/HD Radio bands.
+ * - sub_channel: valid for HD radio or digital radios only: (e.g SPS number for HD radio).
+ *
+ * returns:
+ * 0 if tune successfully started
+ * -ENOSYS if called out of sequence
+ * -EINVAL if invalid arguments are passed
+ * -ENODEV if another error occurs
+ *
+ * Automatically cancels pending scan, step or tune.
+ *
+ * Callback function with event RADIO_EVENT_TUNED MUST be called once
+ * tuned or after a time out. The event status should indicate
+ * if a valid station is tuned or not.
+ */
+ int (*tune)(const struct radio_tuner *tuner,
+ unsigned int channel, unsigned int sub_channel);
+
+ /*
+ * Cancel a scan, step or tune operation.
+ * Must be called while a scan, step or tune operation is pending
+ * (callback not yet sent).
+ *
+ * returns:
+ * 0 if successful
+ * -ENOSYS if called out of sequence
+ * -ENODEV if another error occurs
+ *
+ * The callback is not sent.
+ */
+ int (*cancel)(const struct radio_tuner *tuner);
+
+ /*
+ * Retrieve current station information.
+ *
+ * arguments:
+ * - info: where to return the program info.
+ * If info->metadata is NULL. no meta data should be returned.
+ * If meta data must be returned, they should be added to or cloned to
+ * info->metadata, not passed from a newly created meta data buffer.
+ *
+ * returns:
+ * 0 if tuned and information available
+ * -EINVAL if invalid arguments are passed
+ * -ENODEV if another error occurs
+ */
+ int (*get_program_information)(const struct radio_tuner *tuner,
+ radio_program_info_t *info);
+};
+
+struct radio_hw_device {
+ struct hw_device_t common;
+
+ /*
+ * Retrieve implementation properties.
+ *
+ * arguments:
+ * - properties: where to return the module properties
+ *
+ * returns:
+ * 0 if no error
+ * -EINVAL if invalid arguments are passed
+ */
+ int (*get_properties)(const struct radio_hw_device *dev,
+ radio_hal_properties_t *properties);
+
+ /*
+ * Open a tuner interface for the requested configuration.
+ * If no other tuner is opened, this will activate the radio module.
+ *
+ * arguments:
+ * - config: the band configuration to apply
+ * - audio: this tuner will be used for live radio listening and should be connected to
+ * the radio audio source.
+ * - callback: the event callback
+ * - cookie: the cookie to pass when calling the callback
+ * - tuner: where to return the tuner interface
+ *
+ * returns:
+ * 0 if HW was powered up and configuration could be applied
+ * -EINVAL if configuration requested is invalid
+ * -ENOSYS if called out of sequence
+ *
+ * Callback function with event RADIO_EVENT_CONFIG MUST be called once the
+ * configuration is applied or a failure occurs or after a time out.
+ */
+ int (*open_tuner)(const struct radio_hw_device *dev,
+ const radio_hal_band_config_t *config,
+ bool audio,
+ radio_callback_t callback,
+ void *cookie,
+ const struct radio_tuner **tuner);
+
+ /*
+ * Close a tuner interface.
+ * If the last tuner is closed, the radio module is deactivated.
+ *
+ * arguments:
+ * - tuner: the tuner interface to close
+ *
+ * returns:
+ * 0 if powered down successfully.
+ * -EINVAL if an invalid argument is passed
+ * -ENOSYS if called out of sequence
+ */
+ int (*close_tuner)(const struct radio_hw_device *dev, const struct radio_tuner *tuner);
+
+};
+
+typedef struct radio_hw_device radio_hw_device_t;
+
+/** convenience API for opening and closing a supported device */
+
+static inline int radio_hw_device_open(const struct hw_module_t* module,
+ struct radio_hw_device** device)
+{
+ return module->methods->open(module, RADIO_HARDWARE_DEVICE,
+ (struct hw_device_t**)device);
+}
+
+static inline int radio_hw_device_close(const struct radio_hw_device* device)
+{
+ return device->common.close((struct hw_device_t *)&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_RADIO_HAL_H
diff --git a/libhardware/include/hardware/sensors.h b/libhardware/include/hardware/sensors.h
new file mode 100644
index 0000000..51bffe1
--- /dev/null
+++ b/libhardware/include/hardware/sensors.h
@@ -0,0 +1,1096 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SENSORS_INTERFACE_H
+#define ANDROID_SENSORS_INTERFACE_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+#include <cutils/native_handle.h>
+
+__BEGIN_DECLS
+
+/*****************************************************************************/
+
+#define SENSORS_HEADER_VERSION 1
+#define SENSORS_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+#define SENSORS_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION_2(0, 1, SENSORS_HEADER_VERSION)
+#define SENSORS_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION_2(1, 0, SENSORS_HEADER_VERSION)
+#define SENSORS_DEVICE_API_VERSION_1_1 HARDWARE_DEVICE_API_VERSION_2(1, 1, SENSORS_HEADER_VERSION)
+#define SENSORS_DEVICE_API_VERSION_1_2 HARDWARE_DEVICE_API_VERSION_2(1, 2, SENSORS_HEADER_VERSION)
+#define SENSORS_DEVICE_API_VERSION_1_3 HARDWARE_DEVICE_API_VERSION_2(1, 3, SENSORS_HEADER_VERSION)
+#define SENSORS_DEVICE_API_VERSION_1_4 HARDWARE_DEVICE_API_VERSION_2(1, 4, SENSORS_HEADER_VERSION)
+
+/**
+ * Please see the Sensors section of source.android.com for an
+ * introduction to and detailed descriptions of Android sensor types:
+ * http://source.android.com/devices/sensors/index.html
+ */
+
+/**
+ * The id of this module
+ */
+#define SENSORS_HARDWARE_MODULE_ID "sensors"
+
+/**
+ * Name of the sensors device to open
+ */
+#define SENSORS_HARDWARE_POLL "poll"
+
+/**
+ * Handles must be higher than SENSORS_HANDLE_BASE and must be unique.
+ * A Handle identifies a given sensors. The handle is used to activate
+ * and/or deactivate sensors.
+ * In this version of the API there can only be 256 handles.
+ */
+#define SENSORS_HANDLE_BASE 0
+#define SENSORS_HANDLE_BITS 8
+#define SENSORS_HANDLE_COUNT (1<<SENSORS_HANDLE_BITS)
+
+
+/*
+ * **** Deprecated *****
+ * flags for (*batch)()
+ * Availability: SENSORS_DEVICE_API_VERSION_1_0
+ * see (*batch)() documentation for details.
+ * Deprecated as of SENSORS_DEVICE_API_VERSION_1_3.
+ * WAKE_UP_* sensors replace WAKE_UPON_FIFO_FULL concept.
+ */
+enum {
+ SENSORS_BATCH_DRY_RUN = 0x00000001,
+ SENSORS_BATCH_WAKE_UPON_FIFO_FULL = 0x00000002
+};
+
+/*
+ * what field for meta_data_event_t
+ */
+enum {
+ /* a previous flush operation has completed */
+ META_DATA_FLUSH_COMPLETE = 1,
+ META_DATA_VERSION /* always last, leave auto-assigned */
+};
+
+/*
+ * The permission to use for body sensors (like heart rate monitors).
+ * See sensor types for more details on what sensors should require this
+ * permission.
+ */
+#define SENSOR_PERMISSION_BODY_SENSORS "android.permission.BODY_SENSORS"
+
+/*
+ * Availability: SENSORS_DEVICE_API_VERSION_1_4
+ * Sensor HAL modes used in set_operation_mode method
+ */
+enum {
+ /*
+ * Operating modes for the HAL.
+ */
+
+ /*
+ * Normal mode operation. This is the default state of operation.
+ * The HAL shall initialize into this mode on device startup.
+ */
+ SENSOR_HAL_NORMAL_MODE = 0,
+
+ /*
+ * Data Injection mode. In this mode, the device shall not source data from the
+ * physical sensors as it would in normal mode. Instead sensor data is
+ * injected by the sensor service.
+ */
+ SENSOR_HAL_DATA_INJECTION_MODE = 0x1
+};
+
+/*
+ * Availability: SENSORS_DEVICE_API_VERSION_1_3
+ * Sensor flags used in sensor_t.flags.
+ */
+enum {
+ /*
+ * Whether this sensor wakes up the AP from suspend mode when data is available. Whenever
+ * sensor events are delivered from a wake_up sensor, the driver needs to hold a wake_lock till
+ * the events are read by the SensorService i.e till sensors_poll_device_t.poll() is called the
+ * next time. Once poll is called again it means events have been read by the SensorService, the
+ * driver can safely release the wake_lock. SensorService will continue to hold a wake_lock till
+ * the app actually reads the events.
+ */
+ SENSOR_FLAG_WAKE_UP = 1U << 0,
+ /*
+ * Reporting modes for various sensors. Each sensor will have exactly one of these modes set.
+ * The least significant 2nd, 3rd and 4th bits are used to represent four possible reporting
+ * modes.
+ */
+ SENSOR_FLAG_CONTINUOUS_MODE = 0, // 0000
+ SENSOR_FLAG_ON_CHANGE_MODE = 0x2, // 0010
+ SENSOR_FLAG_ONE_SHOT_MODE = 0x4, // 0100
+ SENSOR_FLAG_SPECIAL_REPORTING_MODE = 0x6, // 0110
+
+ /*
+ * Set this flag if the sensor supports data_injection mode and allows data to be injected
+ * from the SensorService. When in data_injection ONLY sensors with this flag set are injected
+ * sensor data and only sensors with this flag set are activated. Eg: Accelerometer and Step
+ * Counter sensors can be set with this flag and SensorService will inject accelerometer data
+ * and read the corresponding step counts.
+ */
+ SENSOR_FLAG_SUPPORTS_DATA_INJECTION = 0x10 // 1 0000
+};
+
+/*
+ * Mask and shift for reporting mode sensor flags defined above.
+ */
+#define REPORTING_MODE_MASK (0xE)
+#define REPORTING_MODE_SHIFT (1)
+
+/*
+ * Mask and shift for data_injection mode sensor flags defined above.
+ */
+#define DATA_INJECTION_MASK (0x10)
+#define DATA_INJECTION_SHIFT (4)
+
+/*
+ * Sensor type
+ *
+ * Each sensor has a type which defines what this sensor measures and how
+ * measures are reported. See the Base sensors and Composite sensors lists
+ * for complete descriptions:
+ * http://source.android.com/devices/sensors/base_triggers.html
+ * http://source.android.com/devices/sensors/composite_sensors.html
+ *
+ * Device manufacturers (OEMs) can define their own sensor types, for
+ * their private use by applications or services provided by them. Such
+ * sensor types are specific to an OEM and can't be exposed in the SDK.
+ * These types must start at SENSOR_TYPE_DEVICE_PRIVATE_BASE.
+ *
+ * All sensors defined outside of the device private range must correspond to
+ * a type defined in this file, and must satisfy the characteristics listed in
+ * the description of the sensor type.
+ *
+ * Starting with version SENSORS_DEVICE_API_VERSION_1_2, each sensor also
+ * has a stringType.
+ * - StringType of sensors inside of the device private range MUST be prefixed
+ * by the sensor provider's or OEM reverse domain name. In particular, they
+ * cannot use the "android.sensor" prefix.
+ * - StringType of sensors outside of the device private range MUST correspond
+ * to the one defined in this file (starting with "android.sensor").
+ * For example, accelerometers must have
+ * type=SENSOR_TYPE_ACCELEROMETER and
+ * stringType=SENSOR_STRING_TYPE_ACCELEROMETER
+ *
+ * When android introduces a new sensor type that can replace an OEM-defined
+ * sensor type, the OEM must use the official sensor type and stringType on
+ * versions of the HAL that support this new official sensor type.
+ *
+ * Example (made up): Suppose Google's Glass team wants to surface a sensor
+ * detecting that Glass is on a head.
+ * - Such a sensor is not officially supported in android KitKat
+ * - Glass devices launching on KitKat can implement a sensor with
+ * type = 0x10001 and stringType = "com.google.glass.onheaddetector"
+ * - In L android release, if android decides to define
+ * SENSOR_TYPE_ON_HEAD_DETECTOR and STRING_SENSOR_TYPE_ON_HEAD_DETECTOR,
+ * those types should replace the Glass-team-specific types in all future
+ * launches.
+ * - When launching Glass on the L release, Google should now use the official
+ * type (SENSOR_TYPE_ON_HEAD_DETECTOR) and stringType.
+ * - This way, all applications can now use this sensor.
+ */
+
+/*
+ * Base for device manufacturers private sensor types.
+ * These sensor types can't be exposed in the SDK.
+ */
+#define SENSOR_TYPE_DEVICE_PRIVATE_BASE 0x10000
+
+/*
+ * SENSOR_TYPE_META_DATA
+ * reporting-mode: n/a
+ * wake-up sensor: n/a
+ *
+ * NO SENSOR OF THAT TYPE MUST BE RETURNED (*get_sensors_list)()
+ *
+ * SENSOR_TYPE_META_DATA is a special token used to populate the
+ * sensors_meta_data_event structure. It doesn't correspond to a physical
+ * sensor. sensors_meta_data_event are special, they exist only inside
+ * the HAL and are generated spontaneously, as opposed to be related to
+ * a physical sensor.
+ *
+ * sensors_meta_data_event_t.version must be META_DATA_VERSION
+ * sensors_meta_data_event_t.sensor must be 0
+ * sensors_meta_data_event_t.type must be SENSOR_TYPE_META_DATA
+ * sensors_meta_data_event_t.reserved must be 0
+ * sensors_meta_data_event_t.timestamp must be 0
+ *
+ * The payload is a meta_data_event_t, where:
+ * meta_data_event_t.what can take the following values:
+ *
+ * META_DATA_FLUSH_COMPLETE
+ * This event indicates that a previous (*flush)() call has completed for the sensor
+ * handle specified in meta_data_event_t.sensor.
+ * see (*flush)() for more details
+ *
+ * All other values for meta_data_event_t.what are reserved and
+ * must not be used.
+ *
+ */
+#define SENSOR_TYPE_META_DATA (0)
+
+/*
+ * Wake up sensors.
+ * Each sensor may have either or both a wake-up and a non-wake variant.
+ * When registered in batch mode, wake-up sensors will wake up the AP when
+ * their FIFOs are full or when the batch timeout expires. A separate FIFO has
+ * to be maintained for wake up sensors and non wake up sensors. The non wake-up
+ * sensors need to overwrite their FIFOs when they are full till the AP wakes up
+ * and the wake-up sensors will wake-up the AP when their FIFOs are full or when
+ * the batch timeout expires without losing events. Wake-up and non wake-up variants
+ * of each sensor can be activated at different rates independently of each other.
+ *
+ * Note: Proximity sensor and significant motion sensor which were defined in previous
+ * releases are also wake-up sensors and should be treated as such. Wake-up one-shot
+ * sensors like SIGNIFICANT_MOTION cannot be batched, hence the text about batch above
+ * doesn't apply to them. See the definitions of SENSOR_TYPE_PROXIMITY and
+ * SENSOR_TYPE_SIGNIFICANT_MOTION for more info.
+ *
+ * Set SENSOR_FLAG_WAKE_UP flag for all wake-up sensors.
+ *
+ * For example, A device can have two sensors both of SENSOR_TYPE_ACCELEROMETER and
+ * one of them can be a wake_up sensor (with SENSOR_FLAG_WAKE_UP flag set) and the other
+ * can be a regular non wake_up sensor. Both of these sensors must be activated/deactivated
+ * independently of the other.
+ */
+
+/*
+ * SENSOR_TYPE_ACCELEROMETER
+ * reporting-mode: continuous
+ *
+ * All values are in SI units (m/s^2) and measure the acceleration of the
+ * device minus the force of gravity.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_ACCELEROMETER (1)
+#define SENSOR_STRING_TYPE_ACCELEROMETER "android.sensor.accelerometer"
+
+/*
+ * SENSOR_TYPE_GEOMAGNETIC_FIELD
+ * reporting-mode: continuous
+ *
+ * All values are in micro-Tesla (uT) and measure the geomagnetic
+ * field in the X, Y and Z axis.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_GEOMAGNETIC_FIELD (2)
+#define SENSOR_TYPE_MAGNETIC_FIELD SENSOR_TYPE_GEOMAGNETIC_FIELD
+#define SENSOR_STRING_TYPE_MAGNETIC_FIELD "android.sensor.magnetic_field"
+
+/*
+ * SENSOR_TYPE_ORIENTATION
+ * reporting-mode: continuous
+ *
+ * All values are angles in degrees.
+ *
+ * Orientation sensors return sensor events for all 3 axes at a constant
+ * rate defined by setDelay().
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_ORIENTATION (3)
+#define SENSOR_STRING_TYPE_ORIENTATION "android.sensor.orientation"
+
+/*
+ * SENSOR_TYPE_GYROSCOPE
+ * reporting-mode: continuous
+ *
+ * All values are in radians/second and measure the rate of rotation
+ * around the X, Y and Z axis.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_GYROSCOPE (4)
+#define SENSOR_STRING_TYPE_GYROSCOPE "android.sensor.gyroscope"
+
+/*
+ * SENSOR_TYPE_LIGHT
+ * reporting-mode: on-change
+ *
+ * The light sensor value is returned in SI lux units.
+ *
+ * Both wake-up and non wake-up versions are useful.
+ */
+#define SENSOR_TYPE_LIGHT (5)
+#define SENSOR_STRING_TYPE_LIGHT "android.sensor.light"
+
+/*
+ * SENSOR_TYPE_PRESSURE
+ * reporting-mode: continuous
+ *
+ * The pressure sensor return the athmospheric pressure in hectopascal (hPa)
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_PRESSURE (6)
+#define SENSOR_STRING_TYPE_PRESSURE "android.sensor.pressure"
+
+/* SENSOR_TYPE_TEMPERATURE is deprecated in the HAL */
+#define SENSOR_TYPE_TEMPERATURE (7)
+#define SENSOR_STRING_TYPE_TEMPERATURE "android.sensor.temperature"
+
+/*
+ * SENSOR_TYPE_PROXIMITY
+ * reporting-mode: on-change
+ *
+ * The proximity sensor which turns the screen off and back on during calls is the
+ * wake-up proximity sensor. Implement wake-up proximity sensor before implementing
+ * a non wake-up proximity sensor. For the wake-up proximity sensor set the flag
+ * SENSOR_FLAG_WAKE_UP.
+ * The value corresponds to the distance to the nearest object in centimeters.
+ */
+#define SENSOR_TYPE_PROXIMITY (8)
+#define SENSOR_STRING_TYPE_PROXIMITY "android.sensor.proximity"
+
+/*
+ * SENSOR_TYPE_GRAVITY
+ * reporting-mode: continuous
+ *
+ * A gravity output indicates the direction of and magnitude of gravity in
+ * the devices's coordinates.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_GRAVITY (9)
+#define SENSOR_STRING_TYPE_GRAVITY "android.sensor.gravity"
+
+/*
+ * SENSOR_TYPE_LINEAR_ACCELERATION
+ * reporting-mode: continuous
+ *
+ * Indicates the linear acceleration of the device in device coordinates,
+ * not including gravity.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_LINEAR_ACCELERATION (10)
+#define SENSOR_STRING_TYPE_LINEAR_ACCELERATION "android.sensor.linear_acceleration"
+
+
+/*
+ * SENSOR_TYPE_ROTATION_VECTOR
+ * reporting-mode: continuous
+ *
+ * The rotation vector symbolizes the orientation of the device relative to the
+ * East-North-Up coordinates frame.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_ROTATION_VECTOR (11)
+#define SENSOR_STRING_TYPE_ROTATION_VECTOR "android.sensor.rotation_vector"
+
+/*
+ * SENSOR_TYPE_RELATIVE_HUMIDITY
+ * reporting-mode: on-change
+ *
+ * A relative humidity sensor measures relative ambient air humidity and
+ * returns a value in percent.
+ *
+ * Both wake-up and non wake-up versions are useful.
+ */
+#define SENSOR_TYPE_RELATIVE_HUMIDITY (12)
+#define SENSOR_STRING_TYPE_RELATIVE_HUMIDITY "android.sensor.relative_humidity"
+
+/*
+ * SENSOR_TYPE_AMBIENT_TEMPERATURE
+ * reporting-mode: on-change
+ *
+ * The ambient (room) temperature in degree Celsius.
+ *
+ * Both wake-up and non wake-up versions are useful.
+ */
+#define SENSOR_TYPE_AMBIENT_TEMPERATURE (13)
+#define SENSOR_STRING_TYPE_AMBIENT_TEMPERATURE "android.sensor.ambient_temperature"
+
+/*
+ * SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED
+ * reporting-mode: continuous
+ *
+ * Similar to SENSOR_TYPE_MAGNETIC_FIELD, but the hard iron calibration is
+ * reported separately instead of being included in the measurement.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED (14)
+#define SENSOR_STRING_TYPE_MAGNETIC_FIELD_UNCALIBRATED "android.sensor.magnetic_field_uncalibrated"
+
+/*
+ * SENSOR_TYPE_GAME_ROTATION_VECTOR
+ * reporting-mode: continuous
+ *
+ * Similar to SENSOR_TYPE_ROTATION_VECTOR, but not using the geomagnetic
+ * field.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_GAME_ROTATION_VECTOR (15)
+#define SENSOR_STRING_TYPE_GAME_ROTATION_VECTOR "android.sensor.game_rotation_vector"
+
+/*
+ * SENSOR_TYPE_GYROSCOPE_UNCALIBRATED
+ * reporting-mode: continuous
+ *
+ * All values are in radians/second and measure the rate of rotation
+ * around the X, Y and Z axis.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_GYROSCOPE_UNCALIBRATED (16)
+#define SENSOR_STRING_TYPE_GYROSCOPE_UNCALIBRATED "android.sensor.gyroscope_uncalibrated"
+
+/*
+ * SENSOR_TYPE_SIGNIFICANT_MOTION
+ * reporting-mode: one-shot
+ *
+ * A sensor of this type triggers an event each time significant motion
+ * is detected and automatically disables itself.
+ * For Significant Motion sensor to be useful, it must be defined as a
+ * wake-up sensor. (set SENSOR_FLAG_WAKE_UP). Implement the wake-up significant motion
+ * sensor. A non wake-up version is not useful.
+ * The only allowed value to return is 1.0.
+ */
+
+#define SENSOR_TYPE_SIGNIFICANT_MOTION (17)
+#define SENSOR_STRING_TYPE_SIGNIFICANT_MOTION "android.sensor.significant_motion"
+
+/*
+ * SENSOR_TYPE_STEP_DETECTOR
+ * reporting-mode: special
+ *
+ * A sensor of this type triggers an event each time a step is taken
+ * by the user. The only allowed value to return is 1.0 and an event
+ * is generated for each step.
+ *
+ * Both wake-up and non wake-up versions are useful.
+ */
+
+#define SENSOR_TYPE_STEP_DETECTOR (18)
+#define SENSOR_STRING_TYPE_STEP_DETECTOR "android.sensor.step_detector"
+
+
+/*
+ * SENSOR_TYPE_STEP_COUNTER
+ * reporting-mode: on-change
+ *
+ * A sensor of this type returns the number of steps taken by the user since
+ * the last reboot while activated. The value is returned as a uint64_t and is
+ * reset to zero only on a system / android reboot.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+
+#define SENSOR_TYPE_STEP_COUNTER (19)
+#define SENSOR_STRING_TYPE_STEP_COUNTER "android.sensor.step_counter"
+
+/*
+ * SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR
+ * reporting-mode: continuous
+ *
+ * Similar to SENSOR_TYPE_ROTATION_VECTOR, but using a magnetometer instead
+ * of using a gyroscope.
+ *
+ * Implement the non-wake-up version of this sensor and implement the wake-up
+ * version if the system possesses a wake up fifo.
+ */
+#define SENSOR_TYPE_GEOMAGNETIC_ROTATION_VECTOR (20)
+#define SENSOR_STRING_TYPE_GEOMAGNETIC_ROTATION_VECTOR "android.sensor.geomagnetic_rotation_vector"
+
+/*
+ * SENSOR_TYPE_HEART_RATE
+ * reporting-mode: on-change
+ *
+ * A sensor of this type returns the current heart rate.
+ * The events contain the current heart rate in beats per minute (BPM) and the
+ * status of the sensor during the measurement. See heart_rate_event_t for more
+ * details.
+ *
+ * Because this sensor is on-change, events must be generated when and only
+ * when heart_rate.bpm or heart_rate.status have changed since the last
+ * event. In particular, upon the first activation, unless the device is known
+ * to not be on the body, the status field of the first event must be set to
+ * SENSOR_STATUS_UNRELIABLE. The event should be generated no faster than every
+ * period_ns passed to setDelay() or to batch().
+ * See the definition of the on-change reporting mode for more information.
+ *
+ * sensor_t.requiredPermission must be set to SENSOR_PERMISSION_BODY_SENSORS.
+ *
+ * Both wake-up and non wake-up versions are useful.
+ */
+#define SENSOR_TYPE_HEART_RATE (21)
+#define SENSOR_STRING_TYPE_HEART_RATE "android.sensor.heart_rate"
+
+/*
+ * SENSOR_TYPE_WAKE_UP_TILT_DETECTOR
+ * reporting-mode: special (setDelay has no impact)
+ *
+ * A sensor of this type generates an event each time a tilt event is detected. A tilt event
+ * should be generated if the direction of the 2-seconds window average gravity changed by at least
+ * 35 degrees since the activation or the last trigger of the sensor.
+ * reference_estimated_gravity = average of accelerometer measurements over the first
+ * 1 second after activation or the estimated gravity at the last
+ * trigger.
+ * current_estimated_gravity = average of accelerometer measurements over the last 2 seconds.
+ * trigger when angle (reference_estimated_gravity, current_estimated_gravity) > 35 degrees
+ *
+ * Large accelerations without a change in phone orientation should not trigger a tilt event.
+ * For example, a sharp turn or strong acceleration while driving a car should not trigger a tilt
+ * event, even though the angle of the average acceleration might vary by more than 35 degrees.
+ *
+ * Typically, this sensor is implemented with the help of only an accelerometer. Other sensors can
+ * be used as well if they do not increase the power consumption significantly. This is a low power
+ * sensor that should allow the AP to go into suspend mode. Do not emulate this sensor in the HAL.
+ * Like other wake up sensors, the driver is expected to a hold a wake_lock with a timeout of 200 ms
+ * while reporting this event. The only allowed return value is 1.0.
+ *
+ * Implement only the wake-up version of this sensor.
+ */
+#define SENSOR_TYPE_TILT_DETECTOR (22)
+#define SENSOR_STRING_TYPE_TILT_DETECTOR "android.sensor.tilt_detector"
+
+/*
+ * SENSOR_TYPE_WAKE_GESTURE
+ * reporting-mode: one-shot
+ *
+ * A sensor enabling waking up the device based on a device specific motion.
+ *
+ * When this sensor triggers, the device behaves as if the power button was
+ * pressed, turning the screen on. This behavior (turning on the screen when
+ * this sensor triggers) might be deactivated by the user in the device
+ * settings. Changes in settings do not impact the behavior of the sensor:
+ * only whether the framework turns the screen on when it triggers.
+ *
+ * The actual gesture to be detected is not specified, and can be chosen by
+ * the manufacturer of the device.
+ * This sensor must be low power, as it is likely to be activated 24/7.
+ * The only allowed value to return is 1.0.
+ *
+ * Implement only the wake-up version of this sensor.
+ */
+#define SENSOR_TYPE_WAKE_GESTURE (23)
+#define SENSOR_STRING_TYPE_WAKE_GESTURE "android.sensor.wake_gesture"
+
+/*
+ * SENSOR_TYPE_GLANCE_GESTURE
+ * reporting-mode: one-shot
+ *
+ * A sensor enabling briefly turning the screen on to enable the user to
+ * glance content on screen based on a specific motion. The device should
+ * turn the screen off after a few moments.
+ *
+ * When this sensor triggers, the device turns the screen on momentarily
+ * to allow the user to glance notifications or other content while the
+ * device remains locked in a non-interactive state (dozing). This behavior
+ * (briefly turning on the screen when this sensor triggers) might be deactivated
+ * by the user in the device settings. Changes in settings do not impact the
+ * behavior of the sensor: only whether the framework briefly turns the screen on
+ * when it triggers.
+ *
+ * The actual gesture to be detected is not specified, and can be chosen by
+ * the manufacturer of the device.
+ * This sensor must be low power, as it is likely to be activated 24/7.
+ * The only allowed value to return is 1.0.
+ *
+ * Implement only the wake-up version of this sensor.
+ */
+#define SENSOR_TYPE_GLANCE_GESTURE (24)
+#define SENSOR_STRING_TYPE_GLANCE_GESTURE "android.sensor.glance_gesture"
+
+/**
+ * SENSOR_TYPE_PICK_UP_GESTURE
+ * reporting-mode: one-shot
+ *
+ * A sensor of this type triggers when the device is picked up regardless of wherever is was
+ * before (desk, pocket, bag). The only allowed return value is 1.0.
+ * This sensor de-activates itself immediately after it triggers.
+ *
+ * Implement only the wake-up version of this sensor.
+ */
+#define SENSOR_TYPE_PICK_UP_GESTURE (25)
+#define SENSOR_STRING_TYPE_PICK_UP_GESTURE "android.sensor.pick_up_gesture"
+
+/*
+ * SENSOR_TYPE_WRIST_TILT_GESTURE
+ * trigger-mode: special
+ * wake-up sensor: yes
+ *
+ * A sensor of this type triggers an event each time a tilt of the wrist-worn
+ * device is detected.
+ *
+ * This sensor must be low power, as it is likely to be activated 24/7.
+ * The only allowed value to return is 1.0.
+ *
+ * Implement only the wake-up version of this sensor.
+ */
+#define SENSOR_TYPE_WRIST_TILT_GESTURE (26)
+#define SENSOR_STRING_TYPE_WRIST_TILT_GESTURE "android.sensor.wrist_tilt_gesture"
+
+/**
+ * Values returned by the accelerometer in various locations in the universe.
+ * all values are in SI units (m/s^2)
+ */
+#define GRAVITY_SUN (275.0f)
+#define GRAVITY_EARTH (9.80665f)
+
+/** Maximum magnetic field on Earth's surface */
+#define MAGNETIC_FIELD_EARTH_MAX (60.0f)
+
+/** Minimum magnetic field on Earth's surface */
+#define MAGNETIC_FIELD_EARTH_MIN (30.0f)
+
+/**
+ * Possible values of the status field of sensor events.
+ */
+#define SENSOR_STATUS_NO_CONTACT -1
+#define SENSOR_STATUS_UNRELIABLE 0
+#define SENSOR_STATUS_ACCURACY_LOW 1
+#define SENSOR_STATUS_ACCURACY_MEDIUM 2
+#define SENSOR_STATUS_ACCURACY_HIGH 3
+
+/**
+ * sensor event data
+ */
+typedef struct {
+ union {
+ float v[3];
+ struct {
+ float x;
+ float y;
+ float z;
+ };
+ struct {
+ float azimuth;
+ float pitch;
+ float roll;
+ };
+ };
+ int8_t status;
+ uint8_t reserved[3];
+} sensors_vec_t;
+
+/**
+ * uncalibrated gyroscope and magnetometer event data
+ */
+typedef struct {
+ union {
+ float uncalib[3];
+ struct {
+ float x_uncalib;
+ float y_uncalib;
+ float z_uncalib;
+ };
+ };
+ union {
+ float bias[3];
+ struct {
+ float x_bias;
+ float y_bias;
+ float z_bias;
+ };
+ };
+} uncalibrated_event_t;
+
+/**
+ * Meta data event data
+ */
+typedef struct meta_data_event {
+ int32_t what;
+ int32_t sensor;
+} meta_data_event_t;
+
+/**
+ * Heart rate event data
+ */
+typedef struct {
+ // Heart rate in beats per minute.
+ // Set to 0 when status is SENSOR_STATUS_UNRELIABLE or ..._NO_CONTACT
+ float bpm;
+ // Status of the sensor for this reading. Set to one SENSOR_STATUS_...
+ // Note that this value should only be set for sensors that explicitly define
+ // the meaning of this field. This field is not piped through the framework
+ // for other sensors.
+ int8_t status;
+} heart_rate_event_t;
+
+/**
+ * Union of the various types of sensor data
+ * that can be returned.
+ */
+typedef struct sensors_event_t {
+ /* must be sizeof(struct sensors_event_t) */
+ int32_t version;
+
+ /* sensor identifier */
+ int32_t sensor;
+
+ /* sensor type */
+ int32_t type;
+
+ /* reserved */
+ int32_t reserved0;
+
+ /* time is in nanosecond */
+ int64_t timestamp;
+
+ union {
+ union {
+ float data[16];
+
+ /* acceleration values are in meter per second per second (m/s^2) */
+ sensors_vec_t acceleration;
+
+ /* magnetic vector values are in micro-Tesla (uT) */
+ sensors_vec_t magnetic;
+
+ /* orientation values are in degrees */
+ sensors_vec_t orientation;
+
+ /* gyroscope values are in rad/s */
+ sensors_vec_t gyro;
+
+ /* temperature is in degrees centigrade (Celsius) */
+ float temperature;
+
+ /* distance in centimeters */
+ float distance;
+
+ /* light in SI lux units */
+ float light;
+
+ /* pressure in hectopascal (hPa) */
+ float pressure;
+
+ /* relative humidity in percent */
+ float relative_humidity;
+
+ /* uncalibrated gyroscope values are in rad/s */
+ uncalibrated_event_t uncalibrated_gyro;
+
+ /* uncalibrated magnetometer values are in micro-Teslas */
+ uncalibrated_event_t uncalibrated_magnetic;
+
+ /* heart rate data containing value in bpm and status */
+ heart_rate_event_t heart_rate;
+
+ /* this is a special event. see SENSOR_TYPE_META_DATA above.
+ * sensors_meta_data_event_t events are all reported with a type of
+ * SENSOR_TYPE_META_DATA. The handle is ignored and must be zero.
+ */
+ meta_data_event_t meta_data;
+ };
+
+ union {
+ uint64_t data[8];
+
+ /* step-counter */
+ uint64_t step_counter;
+ } u64;
+ };
+
+ /* Reserved flags for internal use. Set to zero. */
+ uint32_t flags;
+
+ uint32_t reserved1[3];
+} sensors_event_t;
+
+
+/* see SENSOR_TYPE_META_DATA */
+typedef sensors_event_t sensors_meta_data_event_t;
+
+
+struct sensor_t;
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+struct sensors_module_t {
+ struct hw_module_t common;
+
+ /**
+ * Enumerate all available sensors. The list is returned in "list".
+ * @return number of sensors in the list
+ */
+ int (*get_sensors_list)(struct sensors_module_t* module,
+ struct sensor_t const** list);
+
+ /**
+ * Place the module in a specific mode. The following modes are defined
+ *
+ * 0 - Normal operation. Default state of the module.
+ * 1 - Loopback mode. Data is injected for the the supported
+ * sensors by the sensor service in this mode.
+ * @return 0 on success
+ * -EINVAL if requested mode is not supported
+ * -EPERM if operation is not allowed
+ */
+ int (*set_operation_mode)(unsigned int mode);
+};
+
+struct sensor_t {
+
+ /* Name of this sensor.
+ * All sensors of the same "type" must have a different "name".
+ */
+ const char* name;
+
+ /* vendor of the hardware part */
+ const char* vendor;
+
+ /* version of the hardware part + driver. The value of this field
+ * must increase when the driver is updated in a way that changes the
+ * output of this sensor. This is important for fused sensors when the
+ * fusion algorithm is updated.
+ */
+ int version;
+
+ /* handle that identifies this sensors. This handle is used to reference
+ * this sensor throughout the HAL API.
+ */
+ int handle;
+
+ /* this sensor's type. */
+ int type;
+
+ /* maximum range of this sensor's value in SI units */
+ float maxRange;
+
+ /* smallest difference between two values reported by this sensor */
+ float resolution;
+
+ /* rough estimate of this sensor's power consumption in mA */
+ float power;
+
+ /* this value depends on the reporting mode:
+ *
+ * continuous: minimum sample period allowed in microseconds
+ * on-change : 0
+ * one-shot :-1
+ * special : 0, unless otherwise noted
+ */
+ int32_t minDelay;
+
+ /* number of events reserved for this sensor in the batch mode FIFO.
+ * If there is a dedicated FIFO for this sensor, then this is the
+ * size of this FIFO. If the FIFO is shared with other sensors,
+ * this is the size reserved for that sensor and it can be zero.
+ */
+ uint32_t fifoReservedEventCount;
+
+ /* maximum number of events of this sensor that could be batched.
+ * This is especially relevant when the FIFO is shared between
+ * several sensors; this value is then set to the size of that FIFO.
+ */
+ uint32_t fifoMaxEventCount;
+
+ /* type of this sensor as a string. Set to corresponding
+ * SENSOR_STRING_TYPE_*.
+ * When defining an OEM specific sensor or sensor manufacturer specific
+ * sensor, use your reserve domain name as a prefix.
+ * ex: com.google.glass.onheaddetector
+ * For sensors of known type, the android framework might overwrite this
+ * string automatically.
+ */
+ const char* stringType;
+
+ /* permission required to see this sensor, register to it and receive data.
+ * Set to "" if no permission is required. Some sensor types like the
+ * heart rate monitor have a mandatory require_permission.
+ * For sensors that always require a specific permission, like the heart
+ * rate monitor, the android framework might overwrite this string
+ * automatically.
+ */
+ const char* requiredPermission;
+
+ /* This value is defined only for continuous mode and on-change sensors. It is the delay between
+ * two sensor events corresponding to the lowest frequency that this sensor supports. When lower
+ * frequencies are requested through batch()/setDelay() the events will be generated at this
+ * frequency instead. It can be used by the framework or applications to estimate when the batch
+ * FIFO may be full.
+ *
+ * NOTE: 1) period_ns is in nanoseconds where as maxDelay/minDelay are in microseconds.
+ * continuous, on-change: maximum sampling period allowed in microseconds.
+ * one-shot, special : 0
+ * 2) maxDelay should always fit within a 32 bit signed integer. It is declared as 64 bit
+ * on 64 bit architectures only for binary compatibility reasons.
+ * Availability: SENSORS_DEVICE_API_VERSION_1_3
+ */
+ #ifdef __LP64__
+ int64_t maxDelay;
+ #else
+ int32_t maxDelay;
+ #endif
+
+ /* Flags for sensor. See SENSOR_FLAG_* above. Only the least significant 32 bits are used here.
+ * It is declared as 64 bit on 64 bit architectures only for binary compatibility reasons.
+ * Availability: SENSORS_DEVICE_API_VERSION_1_3
+ */
+ #ifdef __LP64__
+ uint64_t flags;
+ #else
+ uint32_t flags;
+ #endif
+
+ /* reserved fields, must be zero */
+ void* reserved[2];
+};
+
+
+/*
+ * sensors_poll_device_t is used with SENSORS_DEVICE_API_VERSION_0_1
+ * and is present for backward binary and source compatibility.
+ * See the Sensors HAL interface section for complete descriptions of the
+ * following functions:
+ * http://source.android.com/devices/sensors/index.html#hal
+ */
+struct sensors_poll_device_t {
+ struct hw_device_t common;
+ int (*activate)(struct sensors_poll_device_t *dev,
+ int sensor_handle, int enabled);
+ int (*setDelay)(struct sensors_poll_device_t *dev,
+ int sensor_handle, int64_t sampling_period_ns);
+ int (*poll)(struct sensors_poll_device_t *dev,
+ sensors_event_t* data, int count);
+};
+
+/*
+ * struct sensors_poll_device_1 is used in HAL versions >= SENSORS_DEVICE_API_VERSION_1_0
+ */
+typedef struct sensors_poll_device_1 {
+ union {
+ /* sensors_poll_device_1 is compatible with sensors_poll_device_t,
+ * and can be down-cast to it
+ */
+ struct sensors_poll_device_t v0;
+
+ struct {
+ struct hw_device_t common;
+
+ /* Activate/de-activate one sensor. Return 0 on success, negative
+ *
+ * sensor_handle is the handle of the sensor to change.
+ * enabled set to 1 to enable, or 0 to disable the sensor.
+ *
+ * Return 0 on success, negative errno code otherwise.
+ */
+ int (*activate)(struct sensors_poll_device_t *dev,
+ int sensor_handle, int enabled);
+
+ /**
+ * Set the events's period in nanoseconds for a given sensor.
+ * If sampling_period_ns > max_delay it will be truncated to
+ * max_delay and if sampling_period_ns < min_delay it will be
+ * replaced by min_delay.
+ */
+ int (*setDelay)(struct sensors_poll_device_t *dev,
+ int sensor_handle, int64_t sampling_period_ns);
+
+ /**
+ * Returns an array of sensor data.
+ */
+ int (*poll)(struct sensors_poll_device_t *dev,
+ sensors_event_t* data, int count);
+ };
+ };
+
+
+ /*
+ * Sets a sensor’s parameters, including sampling frequency and maximum
+ * report latency. This function can be called while the sensor is
+ * activated, in which case it must not cause any sensor measurements to
+ * be lost: transitioning from one sampling rate to the other cannot cause
+ * lost events, nor can transitioning from a high maximum report latency to
+ * a low maximum report latency.
+ * See the Batching sensor results page for details:
+ * http://source.android.com/devices/sensors/batching.html
+ */
+ int (*batch)(struct sensors_poll_device_1* dev,
+ int sensor_handle, int flags, int64_t sampling_period_ns,
+ int64_t max_report_latency_ns);
+
+ /*
+ * Flush adds a META_DATA_FLUSH_COMPLETE event (sensors_event_meta_data_t)
+ * to the end of the "batch mode" FIFO for the specified sensor and flushes
+ * the FIFO.
+ * If the FIFO is empty or if the sensor doesn't support batching (FIFO size zero),
+ * it should return SUCCESS along with a trivial META_DATA_FLUSH_COMPLETE event added to the
+ * event stream. This applies to all sensors other than one-shot sensors.
+ * If the sensor is a one-shot sensor, flush must return -EINVAL and not generate
+ * any flush complete metadata.
+ * If the sensor is not active at the time flush() is called, flush() should return
+ * -EINVAL.
+ */
+ int (*flush)(struct sensors_poll_device_1* dev, int sensor_handle);
+
+ /*
+ * Inject a single sensor sample to be to this device.
+ * data points to the sensor event to be injected
+ * @return 0 on success
+ * -EPERM if operation is not allowed
+ * -EINVAL if sensor event cannot be injected
+ */
+ int (*inject_sensor_data)(struct sensors_poll_device_1 *dev, const sensors_event_t *data);
+
+ void (*reserved_procs[7])(void);
+
+} sensors_poll_device_1_t;
+
+
+/** convenience API for opening and closing a device */
+
+static inline int sensors_open(const struct hw_module_t* module,
+ struct sensors_poll_device_t** device) {
+ return module->methods->open(module,
+ SENSORS_HARDWARE_POLL, (struct hw_device_t**)device);
+}
+
+static inline int sensors_close(struct sensors_poll_device_t* device) {
+ return device->common.close(&device->common);
+}
+
+static inline int sensors_open_1(const struct hw_module_t* module,
+ sensors_poll_device_1_t** device) {
+ return module->methods->open(module,
+ SENSORS_HARDWARE_POLL, (struct hw_device_t**)device);
+}
+
+static inline int sensors_close_1(sensors_poll_device_1_t* device) {
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_SENSORS_INTERFACE_H
diff --git a/libhardware/include/hardware/sound_trigger.h b/libhardware/include/hardware/sound_trigger.h
new file mode 100644
index 0000000..3d2bba2
--- /dev/null
+++ b/libhardware/include/hardware/sound_trigger.h
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <system/audio.h>
+#include <system/sound_trigger.h>
+#include <hardware/hardware.h>
+
+#ifndef ANDROID_SOUND_TRIGGER_HAL_H
+#define ANDROID_SOUND_TRIGGER_HAL_H
+
+
+__BEGIN_DECLS
+
+/**
+ * The id of this module
+ */
+#define SOUND_TRIGGER_HARDWARE_MODULE_ID "sound_trigger"
+
+/**
+ * Name of the audio devices to open
+ */
+#define SOUND_TRIGGER_HARDWARE_INTERFACE "sound_trigger_hw_if"
+
+#define SOUND_TRIGGER_MODULE_API_VERSION_1_0 HARDWARE_MODULE_API_VERSION(1, 0)
+#define SOUND_TRIGGER_MODULE_API_VERSION_CURRENT SOUND_TRIGGER_MODULE_API_VERSION_1_0
+
+
+#define SOUND_TRIGGER_DEVICE_API_VERSION_1_0 HARDWARE_DEVICE_API_VERSION(1, 0)
+#define SOUND_TRIGGER_DEVICE_API_VERSION_CURRENT SOUND_TRIGGER_DEVICE_API_VERSION_1_0
+
+/**
+ * List of known sound trigger HAL modules. This is the base name of the sound_trigger HAL
+ * library composed of the "sound_trigger." prefix, one of the base names below and
+ * a suffix specific to the device.
+ * e.g: sondtrigger.primary.goldfish.so or sound_trigger.primary.default.so
+ */
+
+#define SOUND_TRIGGER_HARDWARE_MODULE_ID_PRIMARY "primary"
+
+
+/**
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+struct sound_trigger_module {
+ struct hw_module_t common;
+};
+
+typedef void (*recognition_callback_t)(struct sound_trigger_recognition_event *event, void *cookie);
+typedef void (*sound_model_callback_t)(struct sound_trigger_model_event *event, void *cookie);
+
+struct sound_trigger_hw_device {
+ struct hw_device_t common;
+
+ /*
+ * Retrieve implementation properties.
+ */
+ int (*get_properties)(const struct sound_trigger_hw_device *dev,
+ struct sound_trigger_properties *properties);
+
+ /*
+ * Load a sound model. Once loaded, recognition of this model can be started and stopped.
+ * Only one active recognition per model at a time. The SoundTrigger service will handle
+ * concurrent recognition requests by different users/applications on the same model.
+ * The implementation returns a unique handle used by other functions (unload_sound_model(),
+ * start_recognition(), etc...
+ */
+ int (*load_sound_model)(const struct sound_trigger_hw_device *dev,
+ struct sound_trigger_sound_model *sound_model,
+ sound_model_callback_t callback,
+ void *cookie,
+ sound_model_handle_t *handle);
+
+ /*
+ * Unload a sound model. A sound model can be unloaded to make room for a new one to overcome
+ * implementation limitations.
+ */
+ int (*unload_sound_model)(const struct sound_trigger_hw_device *dev,
+ sound_model_handle_t handle);
+
+ /* Start recognition on a given model. Only one recognition active at a time per model.
+ * Once recognition succeeds of fails, the callback is called.
+ * TODO: group recognition configuration parameters into one struct and add key phrase options.
+ */
+ int (*start_recognition)(const struct sound_trigger_hw_device *dev,
+ sound_model_handle_t sound_model_handle,
+ const struct sound_trigger_recognition_config *config,
+ recognition_callback_t callback,
+ void *cookie);
+
+ /* Stop recognition on a given model.
+ * The implementation does not have to call the callback when stopped via this method.
+ */
+ int (*stop_recognition)(const struct sound_trigger_hw_device *dev,
+ sound_model_handle_t sound_model_handle);
+
+ /* set parameters on a given model.
+ * The function accepts a list of
+ * parameter key value pairs in the form: key1=value1;key2=value2;...
+ */
+ int (*set_parameters)(const struct sound_trigger_hw_device *dev,
+ sound_model_handle_t sound_model_handle,
+ const char *kv_pairs);
+};
+
+typedef struct sound_trigger_hw_device sound_trigger_hw_device_t;
+
+/** convenience API for opening and closing a supported device */
+
+static inline int sound_trigger_hw_device_open(const struct hw_module_t* module,
+ struct sound_trigger_hw_device** device)
+{
+ return module->methods->open(module, SOUND_TRIGGER_HARDWARE_INTERFACE,
+ (struct hw_device_t**)device);
+}
+
+static inline int sound_trigger_hw_device_close(struct sound_trigger_hw_device* device)
+{
+ return device->common.close(&device->common);
+}
+
+__END_DECLS
+
+#endif // ANDROID_SOUND_TRIGGER_HAL_H
diff --git a/libhardware/include/hardware/tv_input.h b/libhardware/include/hardware/tv_input.h
new file mode 100644
index 0000000..ed3fafb
--- /dev/null
+++ b/libhardware/include/hardware/tv_input.h
@@ -0,0 +1,405 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TV_INPUT_INTERFACE_H
+#define ANDROID_TV_INPUT_INTERFACE_H
+
+#include <stdint.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <hardware/hardware.h>
+#include <system/audio.h>
+#include <system/window.h>
+
+__BEGIN_DECLS
+
+/*
+ * Module versioning information for the TV input hardware module, based on
+ * tv_input_module_t.common.module_api_version.
+ *
+ * Version History:
+ *
+ * TV_INPUT_MODULE_API_VERSION_0_1:
+ * Initial TV input hardware module API.
+ *
+ */
+
+#define TV_INPUT_MODULE_API_VERSION_0_1 HARDWARE_MODULE_API_VERSION(0, 1)
+
+#define TV_INPUT_DEVICE_API_VERSION_0_1 HARDWARE_DEVICE_API_VERSION(0, 1)
+
+/*
+ * The id of this module
+ */
+#define TV_INPUT_HARDWARE_MODULE_ID "tv_input"
+
+#define TV_INPUT_DEFAULT_DEVICE "default"
+
+/*****************************************************************************/
+
+/*
+ * Every hardware module must have a data structure named HAL_MODULE_INFO_SYM
+ * and the fields of this data structure must begin with hw_module_t
+ * followed by module specific information.
+ */
+typedef struct tv_input_module {
+ struct hw_module_t common;
+} tv_input_module_t;
+
+/*****************************************************************************/
+
+enum {
+ /* Generic hardware. */
+ TV_INPUT_TYPE_OTHER_HARDWARE = 1,
+ /* Tuner. (e.g. built-in terrestrial tuner) */
+ TV_INPUT_TYPE_TUNER = 2,
+ TV_INPUT_TYPE_COMPOSITE = 3,
+ TV_INPUT_TYPE_SVIDEO = 4,
+ TV_INPUT_TYPE_SCART = 5,
+ TV_INPUT_TYPE_COMPONENT = 6,
+ TV_INPUT_TYPE_VGA = 7,
+ TV_INPUT_TYPE_DVI = 8,
+ /* Physical HDMI port. (e.g. HDMI 1) */
+ TV_INPUT_TYPE_HDMI = 9,
+ TV_INPUT_TYPE_DISPLAY_PORT = 10,
+};
+typedef uint32_t tv_input_type_t;
+
+typedef struct tv_input_device_info {
+ /* Device ID */
+ int device_id;
+
+ /* Type of physical TV input. */
+ tv_input_type_t type;
+
+ union {
+ struct {
+ /* HDMI port ID number */
+ uint32_t port_id;
+ } hdmi;
+
+ /* TODO: add other type specific information. */
+
+ int32_t type_info_reserved[16];
+ };
+
+ /* TODO: Add capability if necessary. */
+
+ /*
+ * Audio info
+ *
+ * audio_type == AUDIO_DEVICE_NONE if this input has no audio.
+ */
+ audio_devices_t audio_type;
+ const char* audio_address;
+
+ int32_t reserved[16];
+} tv_input_device_info_t;
+
+/* See tv_input_event_t for more details. */
+enum {
+ /*
+ * Hardware notifies the framework that a device is available.
+ *
+ * Note that DEVICE_AVAILABLE and DEVICE_UNAVAILABLE events do not represent
+ * hotplug events (i.e. plugging cable into or out of the physical port).
+ * These events notify the framework whether the port is available or not.
+ * For a concrete example, when a user plugs in or pulls out the HDMI cable
+ * from a HDMI port, it does not generate DEVICE_AVAILABLE and/or
+ * DEVICE_UNAVAILABLE events. However, if a user inserts a pluggable USB
+ * tuner into the Android device, it will generate a DEVICE_AVAILABLE event
+ * and when the port is removed, it should generate a DEVICE_UNAVAILABLE
+ * event.
+ *
+ * For hotplug events, please see STREAM_CONFIGURATION_CHANGED for more
+ * details.
+ *
+ * HAL implementation should register devices by using this event when the
+ * device boots up. The framework will recognize device reported via this
+ * event only. In addition, the implementation could use this event to
+ * notify the framework that a removable TV input device (such as USB tuner
+ * as stated in the example above) is attached.
+ */
+ TV_INPUT_EVENT_DEVICE_AVAILABLE = 1,
+ /*
+ * Hardware notifies the framework that a device is unavailable.
+ *
+ * HAL implementation should generate this event when a device registered
+ * by TV_INPUT_EVENT_DEVICE_AVAILABLE is no longer available. For example,
+ * the event can indicate that a USB tuner is plugged out from the Android
+ * device.
+ *
+ * Note that this event is not for indicating cable plugged out of the port;
+ * for that purpose, the implementation should use
+ * STREAM_CONFIGURATION_CHANGED event. This event represents the port itself
+ * being no longer available.
+ */
+ TV_INPUT_EVENT_DEVICE_UNAVAILABLE = 2,
+ /*
+ * Stream configurations are changed. Client should regard all open streams
+ * at the specific device are closed, and should call
+ * get_stream_configurations() again, opening some of them if necessary.
+ *
+ * HAL implementation should generate this event when the available stream
+ * configurations change for any reason. A typical use case of this event
+ * would be to notify the framework that the input signal has changed
+ * resolution, or that the cable is plugged out so that the number of
+ * available streams is 0.
+ *
+ * The implementation may use this event to indicate hotplug status of the
+ * port. the framework regards input devices with no available streams as
+ * disconnected, so the implementation can generate this event with no
+ * available streams to indicate that this device is disconnected, and vice
+ * versa.
+ */
+ TV_INPUT_EVENT_STREAM_CONFIGURATIONS_CHANGED = 3,
+ /*
+ * Hardware is done with capture request with the buffer. Client can assume
+ * ownership of the buffer again.
+ *
+ * HAL implementation should generate this event after request_capture() if
+ * it succeeded. The event shall have the buffer with the captured image.
+ */
+ TV_INPUT_EVENT_CAPTURE_SUCCEEDED = 4,
+ /*
+ * Hardware met a failure while processing a capture request or client
+ * canceled the request. Client can assume ownership of the buffer again.
+ *
+ * The event is similar to TV_INPUT_EVENT_CAPTURE_SUCCEEDED, but HAL
+ * implementation generates this event upon a failure to process
+ * request_capture(), or a request cancellation.
+ */
+ TV_INPUT_EVENT_CAPTURE_FAILED = 5,
+};
+typedef uint32_t tv_input_event_type_t;
+
+typedef struct tv_input_capture_result {
+ /* Device ID */
+ int device_id;
+
+ /* Stream ID */
+ int stream_id;
+
+ /* Sequence number of the request */
+ uint32_t seq;
+
+ /*
+ * The buffer passed to hardware in request_capture(). The content of
+ * buffer is undefined (although buffer itself is valid) for
+ * TV_INPUT_CAPTURE_FAILED event.
+ */
+ buffer_handle_t buffer;
+
+ /*
+ * Error code for the request. -ECANCELED if request is cancelled; other
+ * error codes are unknown errors.
+ */
+ int error_code;
+} tv_input_capture_result_t;
+
+typedef struct tv_input_event {
+ tv_input_event_type_t type;
+
+ union {
+ /*
+ * TV_INPUT_EVENT_DEVICE_AVAILABLE: all fields are relevant
+ * TV_INPUT_EVENT_DEVICE_UNAVAILABLE: only device_id is relevant
+ * TV_INPUT_EVENT_STREAM_CONFIGURATIONS_CHANGED: only device_id is
+ * relevant
+ */
+ tv_input_device_info_t device_info;
+ /*
+ * TV_INPUT_EVENT_CAPTURE_SUCCEEDED: error_code is not relevant
+ * TV_INPUT_EVENT_CAPTURE_FAILED: all fields are relevant
+ */
+ tv_input_capture_result_t capture_result;
+ };
+} tv_input_event_t;
+
+typedef struct tv_input_callback_ops {
+ /*
+ * event contains the type of the event and additional data if necessary.
+ * The event object is guaranteed to be valid only for the duration of the
+ * call.
+ *
+ * data is an object supplied at device initialization, opaque to the
+ * hardware.
+ */
+ void (*notify)(struct tv_input_device* dev,
+ tv_input_event_t* event, void* data);
+} tv_input_callback_ops_t;
+
+enum {
+ TV_STREAM_TYPE_INDEPENDENT_VIDEO_SOURCE = 1,
+ TV_STREAM_TYPE_BUFFER_PRODUCER = 2,
+};
+typedef uint32_t tv_stream_type_t;
+
+typedef struct tv_stream_config {
+ /*
+ * ID number of the stream. This value is used to identify the whole stream
+ * configuration.
+ */
+ int stream_id;
+
+ /* Type of the stream */
+ tv_stream_type_t type;
+
+ /* Max width/height of the stream. */
+ uint32_t max_video_width;
+ uint32_t max_video_height;
+} tv_stream_config_t;
+
+typedef struct buffer_producer_stream {
+ /*
+ * IN/OUT: Width / height of the stream. Client may request for specific
+ * size but hardware may change it. Client must allocate buffers with
+ * specified width and height.
+ */
+ uint32_t width;
+ uint32_t height;
+
+ /* OUT: Client must set this usage when allocating buffer. */
+ uint32_t usage;
+
+ /* OUT: Client must allocate a buffer with this format. */
+ uint32_t format;
+} buffer_producer_stream_t;
+
+typedef struct tv_stream {
+ /* IN: ID in the stream configuration */
+ int stream_id;
+
+ /* OUT: Type of the stream (for convenience) */
+ tv_stream_type_t type;
+
+ /* Data associated with the stream for client's use */
+ union {
+ /* OUT: A native handle describing the sideband stream source */
+ native_handle_t* sideband_stream_source_handle;
+
+ /* IN/OUT: Details are in buffer_producer_stream_t */
+ buffer_producer_stream_t buffer_producer;
+ };
+} tv_stream_t;
+
+/*
+ * Every device data structure must begin with hw_device_t
+ * followed by module specific public methods and attributes.
+ */
+typedef struct tv_input_device {
+ struct hw_device_t common;
+
+ /*
+ * initialize:
+ *
+ * Provide callbacks to the device and start operation. At first, no device
+ * is available and after initialize() completes, currently available
+ * devices including static devices should notify via callback.
+ *
+ * Framework owns callbacks object.
+ *
+ * data is a framework-owned object which would be sent back to the
+ * framework for each callback notifications.
+ *
+ * Return 0 on success.
+ */
+ int (*initialize)(struct tv_input_device* dev,
+ const tv_input_callback_ops_t* callback, void* data);
+
+ /*
+ * get_stream_configurations:
+ *
+ * Get stream configurations for a specific device. An input device may have
+ * multiple configurations.
+ *
+ * The configs object is guaranteed to be valid only until the next call to
+ * get_stream_configurations() or STREAM_CONFIGURATIONS_CHANGED event.
+ *
+ * Return 0 on success.
+ */
+ int (*get_stream_configurations)(const struct tv_input_device* dev,
+ int device_id, int* num_configurations,
+ const tv_stream_config_t** configs);
+
+ /*
+ * open_stream:
+ *
+ * Open a stream with given stream ID. Caller owns stream object, and the
+ * populated data is only valid until the stream is closed.
+ *
+ * Return 0 on success; -EBUSY if the client should close other streams to
+ * open the stream; -EEXIST if the stream with the given ID is already open;
+ * -EINVAL if device_id and/or stream_id are invalid; other non-zero value
+ * denotes unknown error.
+ */
+ int (*open_stream)(struct tv_input_device* dev, int device_id,
+ tv_stream_t* stream);
+
+ /*
+ * close_stream:
+ *
+ * Close a stream to a device. data in tv_stream_t* object associated with
+ * the stream_id is obsolete once this call finishes.
+ *
+ * Return 0 on success; -ENOENT if the stream is not open; -EINVAL if
+ * device_id and/or stream_id are invalid.
+ */
+ int (*close_stream)(struct tv_input_device* dev, int device_id,
+ int stream_id);
+
+ /*
+ * request_capture:
+ *
+ * Request buffer capture for a stream. This is only valid for buffer
+ * producer streams. The buffer should be created with size, format and
+ * usage specified in the stream. Framework provides seq in an
+ * increasing sequence per each stream. Hardware should provide the picture
+ * in a chronological order according to seq. For example, if two
+ * requests are being processed at the same time, the request with the
+ * smaller seq should get an earlier frame.
+ *
+ * The framework releases the ownership of the buffer upon calling this
+ * function. When the buffer is filled, hardware notifies the framework
+ * via TV_INPUT_EVENT_CAPTURE_FINISHED callback, and the ownership is
+ * transferred back to framework at that time.
+ *
+ * Return 0 on success; -ENOENT if the stream is not open; -EINVAL if
+ * device_id and/or stream_id are invalid; -EWOULDBLOCK if HAL cannot take
+ * additional requests until it releases a buffer.
+ */
+ int (*request_capture)(struct tv_input_device* dev, int device_id,
+ int stream_id, buffer_handle_t buffer, uint32_t seq);
+
+ /*
+ * cancel_capture:
+ *
+ * Cancel an ongoing capture. Hardware should release the buffer as soon as
+ * possible via TV_INPUT_EVENT_CAPTURE_FAILED callback.
+ *
+ * Return 0 on success; -ENOENT if the stream is not open; -EINVAL if
+ * device_id, stream_id, and/or seq are invalid.
+ */
+ int (*cancel_capture)(struct tv_input_device* dev, int device_id,
+ int stream_id, uint32_t seq);
+
+ void* reserved[16];
+} tv_input_device_t;
+
+__END_DECLS
+
+#endif // ANDROID_TV_INPUT_INTERFACE_H
diff --git a/libhardware/include/hardware/vibrator.h b/libhardware/include/hardware/vibrator.h
new file mode 100644
index 0000000..200adf0
--- /dev/null
+++ b/libhardware/include/hardware/vibrator.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _HARDWARE_VIBRATOR_H
+#define _HARDWARE_VIBRATOR_H
+
+#include <hardware/hardware.h>
+
+__BEGIN_DECLS
+
+#define VIBRATOR_API_VERSION HARDWARE_MODULE_API_VERSION(1,0)
+
+/**
+ * The id of this module
+ */
+#define VIBRATOR_HARDWARE_MODULE_ID "vibrator"
+
+/**
+ * The id of the main vibrator device
+ */
+#define VIBRATOR_DEVICE_ID_MAIN "main_vibrator"
+
+struct vibrator_device;
+typedef struct vibrator_device {
+ /**
+ * Common methods of the vibrator device. This *must* be the first member of
+ * vibrator_device as users of this structure will cast a hw_device_t to
+ * vibrator_device pointer in contexts where it's known the hw_device_t references a
+ * vibrator_device.
+ */
+ struct hw_device_t common;
+
+ /** Turn on vibrator
+ *
+ * This function must only be called after the previous timeout has expired or
+ * was canceled (through vibrator_off()).
+ *
+ * @param timeout_ms number of milliseconds to vibrate
+ *
+ * @return 0 in case of success, negative errno code else
+ */
+ int (*vibrator_on)(struct vibrator_device* vibradev, unsigned int timeout_ms);
+
+ /** Turn off vibrator
+ *
+ * Cancel a previously-started vibration, if any.
+ *
+ * @return 0 in case of success, negative errno code else
+ */
+ int (*vibrator_off)(struct vibrator_device* vibradev);
+} vibrator_device_t;
+
+static inline int vibrator_open(const struct hw_module_t* module, vibrator_device_t** device)
+{
+ return module->methods->open(module, VIBRATOR_DEVICE_ID_MAIN, (struct hw_device_t**)device);
+}
+
+__END_DECLS
+
+#endif // _HARDWARE_VIBRATOR_H
diff --git a/libhardware/modules/Android.mk b/libhardware/modules/Android.mk
new file mode 100644
index 0000000..c62b2db
--- /dev/null
+++ b/libhardware/modules/Android.mk
@@ -0,0 +1,3 @@
+hardware_modules := gralloc hwcomposer \
+ usbaudio audio_remote_submix camera usbcamera sensors input
+include $(call all-named-subdir-makefiles,$(hardware_modules))
diff --git a/libhardware/modules/README.android b/libhardware/modules/README.android
new file mode 100644
index 0000000..57abb72
--- /dev/null
+++ b/libhardware/modules/README.android
@@ -0,0 +1,23 @@
+Default (and possibly architecture dependents) HAL modules go here.
+
+
+libhardware.so eventually should contain *just* the HAL hub
+(hardware.c), everything in it should be rewritten as modules.
+
+Modules are .so in /system/libs/hw/ and have a well defined naming
+convention:
+
+ /system/libs/hw/<*_HARDWARE_MODULE_ID>.<ro.product.board>.so
+ /system/libs/hw/<*_HARDWARE_MODULE_ID>.<ro.board.platform>.so
+ /system/libs/hw/<*_HARDWARE_MODULE_ID>.<ro.arch>.so
+ /system/libs/hw/<*_HARDWARE_MODULE_ID>.default.so
+
+They also have a well defined interface which lives in include/hardware/.
+
+A module can have several variants: "default", "arch" and "board", and they're
+loaded in the "board", "arch" and "default" order.
+The source code for the "board" variant, usually lives under partners/...
+
+The source code for "default" and "arch" would usually
+live under hardware/modules/.
+
diff --git a/libhardware/modules/audio/Android.bp b/libhardware/modules/audio/Android.bp
new file mode 100644
index 0000000..02da2b3
--- /dev/null
+++ b/libhardware/modules/audio/Android.bp
@@ -0,0 +1,60 @@
+// Copyright (C) 2011 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// The default audio HAL module, which is a stub, that is loaded if no other
+// device specific modules are present. The exact load order can be seen in
+// libhardware/hardware.c
+//
+// The format of the name is audio.<type>.<hardware/etc>.so where the only
+// required type is 'primary'. Other possibilites are 'a2dp', 'usb', etc.
+cc_library_shared {
+ name: "audio.primary.default",
+ relative_install_path: "hw",
+ srcs: ["audio_hw.c"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ ],
+ cflags: ["-Wno-unused-parameter"],
+}
+
+// The stub audio HAL module, identical to the default audio hal, but with
+// different name to be loaded concurrently with other audio HALs if necessary.
+// This can also be used as skeleton for new implementations
+//
+// The format of the name is audio.<type>.<hardware/etc>.so where the only
+// required type is 'primary'. Other possibilites are 'a2dp', 'usb', etc.
+cc_library_shared {
+ name: "audio.stub.default",
+ relative_install_path: "hw",
+ srcs: ["audio_hw.c"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ ],
+ cflags: ["-Wno-unused-parameter"],
+}
+
+// The stub audio policy HAL module that can be used as a skeleton for
+// new implementations.
+cc_library_shared {
+ name: "audio_policy.stub",
+ relative_install_path: "hw",
+ srcs: ["audio_policy.c"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ ],
+ cflags: ["-Wno-unused-parameter"],
+}
diff --git a/libhardware/modules/audio/audio_hw.c b/libhardware/modules/audio/audio_hw.c
new file mode 100644
index 0000000..a1a322f
--- /dev/null
+++ b/libhardware/modules/audio/audio_hw.c
@@ -0,0 +1,489 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "audio_hw_default"
+//#define LOG_NDEBUG 0
+
+#include <errno.h>
+#include <malloc.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <sys/time.h>
+
+#include <cutils/log.h>
+
+#include <hardware/hardware.h>
+#include <system/audio.h>
+#include <hardware/audio.h>
+
+struct stub_audio_device {
+ struct audio_hw_device device;
+};
+
+struct stub_stream_out {
+ struct audio_stream_out stream;
+};
+
+struct stub_stream_in {
+ struct audio_stream_in stream;
+};
+
+static uint32_t out_get_sample_rate(const struct audio_stream *stream)
+{
+ return 44100;
+}
+
+static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+ ALOGV("out_set_sample_rate: %d", 0);
+ return -ENOSYS;
+}
+
+static size_t out_get_buffer_size(const struct audio_stream *stream)
+{
+ ALOGV("out_get_buffer_size: %d", 4096);
+ return 4096;
+}
+
+static audio_channel_mask_t out_get_channels(const struct audio_stream *stream)
+{
+ ALOGV("out_get_channels");
+ return AUDIO_CHANNEL_OUT_STEREO;
+}
+
+static audio_format_t out_get_format(const struct audio_stream *stream)
+{
+ ALOGV("out_get_format");
+ return AUDIO_FORMAT_PCM_16_BIT;
+}
+
+static int out_set_format(struct audio_stream *stream, audio_format_t format)
+{
+ ALOGV("out_set_format: %d",format);
+ return -ENOSYS;
+}
+
+static int out_standby(struct audio_stream *stream)
+{
+ ALOGV("out_standby");
+
+ return 0;
+}
+
+static int out_dump(const struct audio_stream *stream, int fd)
+{
+ ALOGV("out_dump");
+ return 0;
+}
+
+static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+ ALOGV("out_set_parameters");
+ return 0;
+}
+
+static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
+{
+ ALOGV("out_get_parameters");
+ return strdup("");
+}
+
+static uint32_t out_get_latency(const struct audio_stream_out *stream)
+{
+ ALOGV("out_get_latency");
+ return 0;
+}
+
+static int out_set_volume(struct audio_stream_out *stream, float left,
+ float right)
+{
+ ALOGV("out_set_volume: Left:%f Right:%f", left, right);
+ return 0;
+}
+
+static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
+ size_t bytes)
+{
+ ALOGV("out_write: bytes: %d", bytes);
+ /* XXX: fake timing for audio output */
+ usleep((int64_t)bytes * 1000000 / audio_stream_out_frame_size(stream) /
+ out_get_sample_rate(&stream->common));
+ return bytes;
+}
+
+static int out_get_render_position(const struct audio_stream_out *stream,
+ uint32_t *dsp_frames)
+{
+ *dsp_frames = 0;
+ ALOGV("out_get_render_position: dsp_frames: %p", dsp_frames);
+ return -EINVAL;
+}
+
+static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ ALOGV("out_add_audio_effect: %p", effect);
+ return 0;
+}
+
+static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ ALOGV("out_remove_audio_effect: %p", effect);
+ return 0;
+}
+
+static int out_get_next_write_timestamp(const struct audio_stream_out *stream,
+ int64_t *timestamp)
+{
+ *timestamp = 0;
+ ALOGV("out_get_next_write_timestamp: %ld", (long int)(*timestamp));
+ return -EINVAL;
+}
+
+/** audio_stream_in implementation **/
+static uint32_t in_get_sample_rate(const struct audio_stream *stream)
+{
+ ALOGV("in_get_sample_rate");
+ return 8000;
+}
+
+static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+ ALOGV("in_set_sample_rate: %d", rate);
+ return -ENOSYS;
+}
+
+static size_t in_get_buffer_size(const struct audio_stream *stream)
+{
+ ALOGV("in_get_buffer_size: %d", 320);
+ return 320;
+}
+
+static audio_channel_mask_t in_get_channels(const struct audio_stream *stream)
+{
+ ALOGV("in_get_channels: %d", AUDIO_CHANNEL_IN_MONO);
+ return AUDIO_CHANNEL_IN_MONO;
+}
+
+static audio_format_t in_get_format(const struct audio_stream *stream)
+{
+ return AUDIO_FORMAT_PCM_16_BIT;
+}
+
+static int in_set_format(struct audio_stream *stream, audio_format_t format)
+{
+ return -ENOSYS;
+}
+
+static int in_standby(struct audio_stream *stream)
+{
+ return 0;
+}
+
+static int in_dump(const struct audio_stream *stream, int fd)
+{
+ return 0;
+}
+
+static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+ return 0;
+}
+
+static char * in_get_parameters(const struct audio_stream *stream,
+ const char *keys)
+{
+ return strdup("");
+}
+
+static int in_set_gain(struct audio_stream_in *stream, float gain)
+{
+ return 0;
+}
+
+static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
+ size_t bytes)
+{
+ ALOGV("in_read: bytes %d", bytes);
+ /* XXX: fake timing for audio input */
+ usleep((int64_t)bytes * 1000000 / audio_stream_in_frame_size(stream) /
+ in_get_sample_rate(&stream->common));
+ memset(buffer, 0, bytes);
+ return bytes;
+}
+
+static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
+{
+ return 0;
+}
+
+static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ return 0;
+}
+
+static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ return 0;
+}
+
+static int adev_open_output_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ audio_output_flags_t flags,
+ struct audio_config *config,
+ struct audio_stream_out **stream_out,
+ const char *address __unused)
+{
+ ALOGV("adev_open_output_stream...");
+
+ struct stub_audio_device *ladev = (struct stub_audio_device *)dev;
+ struct stub_stream_out *out;
+ int ret;
+
+ out = (struct stub_stream_out *)calloc(1, sizeof(struct stub_stream_out));
+ if (!out)
+ return -ENOMEM;
+
+ out->stream.common.get_sample_rate = out_get_sample_rate;
+ out->stream.common.set_sample_rate = out_set_sample_rate;
+ out->stream.common.get_buffer_size = out_get_buffer_size;
+ out->stream.common.get_channels = out_get_channels;
+ out->stream.common.get_format = out_get_format;
+ out->stream.common.set_format = out_set_format;
+ out->stream.common.standby = out_standby;
+ out->stream.common.dump = out_dump;
+ out->stream.common.set_parameters = out_set_parameters;
+ out->stream.common.get_parameters = out_get_parameters;
+ out->stream.common.add_audio_effect = out_add_audio_effect;
+ out->stream.common.remove_audio_effect = out_remove_audio_effect;
+ out->stream.get_latency = out_get_latency;
+ out->stream.set_volume = out_set_volume;
+ out->stream.write = out_write;
+ out->stream.get_render_position = out_get_render_position;
+ out->stream.get_next_write_timestamp = out_get_next_write_timestamp;
+
+ *stream_out = &out->stream;
+ return 0;
+
+err_open:
+ free(out);
+ *stream_out = NULL;
+ return ret;
+}
+
+static void adev_close_output_stream(struct audio_hw_device *dev,
+ struct audio_stream_out *stream)
+{
+ ALOGV("adev_close_output_stream...");
+ free(stream);
+}
+
+static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
+{
+ ALOGV("adev_set_parameters");
+ return -ENOSYS;
+}
+
+static char * adev_get_parameters(const struct audio_hw_device *dev,
+ const char *keys)
+{
+ ALOGV("adev_get_parameters");
+ return strdup("");
+}
+
+static int adev_init_check(const struct audio_hw_device *dev)
+{
+ ALOGV("adev_init_check");
+ return 0;
+}
+
+static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
+{
+ ALOGV("adev_set_voice_volume: %f", volume);
+ return -ENOSYS;
+}
+
+static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
+{
+ ALOGV("adev_set_master_volume: %f", volume);
+ return -ENOSYS;
+}
+
+static int adev_get_master_volume(struct audio_hw_device *dev, float *volume)
+{
+ ALOGV("adev_get_master_volume: %f", *volume);
+ return -ENOSYS;
+}
+
+static int adev_set_master_mute(struct audio_hw_device *dev, bool muted)
+{
+ ALOGV("adev_set_master_mute: %d", muted);
+ return -ENOSYS;
+}
+
+static int adev_get_master_mute(struct audio_hw_device *dev, bool *muted)
+{
+ ALOGV("adev_get_master_mute: %d", *muted);
+ return -ENOSYS;
+}
+
+static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
+{
+ ALOGV("adev_set_mode: %d", mode);
+ return 0;
+}
+
+static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
+{
+ ALOGV("adev_set_mic_mute: %d",state);
+ return -ENOSYS;
+}
+
+static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
+{
+ ALOGV("adev_get_mic_mute");
+ return -ENOSYS;
+}
+
+static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
+ const struct audio_config *config)
+{
+ ALOGV("adev_get_input_buffer_size: %d", 320);
+ return 320;
+}
+
+static int adev_open_input_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ struct audio_config *config,
+ struct audio_stream_in **stream_in,
+ audio_input_flags_t flags __unused,
+ const char *address __unused,
+ audio_source_t source __unused)
+{
+ ALOGV("adev_open_input_stream...");
+
+ struct stub_audio_device *ladev = (struct stub_audio_device *)dev;
+ struct stub_stream_in *in;
+ int ret;
+
+ in = (struct stub_stream_in *)calloc(1, sizeof(struct stub_stream_in));
+ if (!in)
+ return -ENOMEM;
+
+ in->stream.common.get_sample_rate = in_get_sample_rate;
+ in->stream.common.set_sample_rate = in_set_sample_rate;
+ in->stream.common.get_buffer_size = in_get_buffer_size;
+ in->stream.common.get_channels = in_get_channels;
+ in->stream.common.get_format = in_get_format;
+ in->stream.common.set_format = in_set_format;
+ in->stream.common.standby = in_standby;
+ in->stream.common.dump = in_dump;
+ in->stream.common.set_parameters = in_set_parameters;
+ in->stream.common.get_parameters = in_get_parameters;
+ in->stream.common.add_audio_effect = in_add_audio_effect;
+ in->stream.common.remove_audio_effect = in_remove_audio_effect;
+ in->stream.set_gain = in_set_gain;
+ in->stream.read = in_read;
+ in->stream.get_input_frames_lost = in_get_input_frames_lost;
+
+ *stream_in = &in->stream;
+ return 0;
+
+err_open:
+ free(in);
+ *stream_in = NULL;
+ return ret;
+}
+
+static void adev_close_input_stream(struct audio_hw_device *dev,
+ struct audio_stream_in *in)
+{
+ ALOGV("adev_close_input_stream...");
+ return;
+}
+
+static int adev_dump(const audio_hw_device_t *device, int fd)
+{
+ ALOGV("adev_dump");
+ return 0;
+}
+
+static int adev_close(hw_device_t *device)
+{
+ ALOGV("adev_close");
+ free(device);
+ return 0;
+}
+
+static int adev_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ ALOGV("adev_open: %s", name);
+
+ struct stub_audio_device *adev;
+ int ret;
+
+ if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
+ return -EINVAL;
+
+ adev = calloc(1, sizeof(struct stub_audio_device));
+ if (!adev)
+ return -ENOMEM;
+
+ adev->device.common.tag = HARDWARE_DEVICE_TAG;
+ adev->device.common.version = AUDIO_DEVICE_API_VERSION_2_0;
+ adev->device.common.module = (struct hw_module_t *) module;
+ adev->device.common.close = adev_close;
+
+ adev->device.init_check = adev_init_check;
+ adev->device.set_voice_volume = adev_set_voice_volume;
+ adev->device.set_master_volume = adev_set_master_volume;
+ adev->device.get_master_volume = adev_get_master_volume;
+ adev->device.set_master_mute = adev_set_master_mute;
+ adev->device.get_master_mute = adev_get_master_mute;
+ adev->device.set_mode = adev_set_mode;
+ adev->device.set_mic_mute = adev_set_mic_mute;
+ adev->device.get_mic_mute = adev_get_mic_mute;
+ adev->device.set_parameters = adev_set_parameters;
+ adev->device.get_parameters = adev_get_parameters;
+ adev->device.get_input_buffer_size = adev_get_input_buffer_size;
+ adev->device.open_output_stream = adev_open_output_stream;
+ adev->device.close_output_stream = adev_close_output_stream;
+ adev->device.open_input_stream = adev_open_input_stream;
+ adev->device.close_input_stream = adev_close_input_stream;
+ adev->device.dump = adev_dump;
+
+ *device = &adev->device.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t hal_module_methods = {
+ .open = adev_open,
+};
+
+struct audio_module HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = AUDIO_MODULE_API_VERSION_0_1,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = AUDIO_HARDWARE_MODULE_ID,
+ .name = "Default audio HW HAL",
+ .author = "The Android Open Source Project",
+ .methods = &hal_module_methods,
+ },
+};
diff --git a/libhardware/modules/audio/audio_policy.c b/libhardware/modules/audio/audio_policy.c
new file mode 100644
index 0000000..9335654
--- /dev/null
+++ b/libhardware/modules/audio/audio_policy.c
@@ -0,0 +1,352 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "audio_policy_default"
+//#define LOG_NDEBUG 0
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/hardware.h>
+#include <system/audio.h>
+#include <system/audio_policy.h>
+#include <hardware/audio_policy.h>
+
+struct default_ap_module {
+ struct audio_policy_module module;
+};
+
+struct default_ap_device {
+ struct audio_policy_device device;
+};
+
+struct default_audio_policy {
+ struct audio_policy policy;
+
+ struct audio_policy_service_ops *aps_ops;
+ void *service;
+};
+
+static int ap_set_device_connection_state(struct audio_policy *pol,
+ audio_devices_t device,
+ audio_policy_dev_state_t state,
+ const char *device_address)
+{
+ return -ENOSYS;
+}
+
+static audio_policy_dev_state_t ap_get_device_connection_state(
+ const struct audio_policy *pol,
+ audio_devices_t device,
+ const char *device_address)
+{
+ return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
+}
+
+static void ap_set_phone_state(struct audio_policy *pol, audio_mode_t state)
+{
+}
+
+// deprecated, never called
+static void ap_set_ringer_mode(struct audio_policy *pol, uint32_t mode,
+ uint32_t mask)
+{
+}
+
+static void ap_set_force_use(struct audio_policy *pol,
+ audio_policy_force_use_t usage,
+ audio_policy_forced_cfg_t config)
+{
+}
+
+ /* retreive current device category forced for a given usage */
+static audio_policy_forced_cfg_t ap_get_force_use(
+ const struct audio_policy *pol,
+ audio_policy_force_use_t usage)
+{
+ return AUDIO_POLICY_FORCE_NONE;
+}
+
+/* if can_mute is true, then audio streams that are marked ENFORCED_AUDIBLE
+ * can still be muted. */
+static void ap_set_can_mute_enforced_audible(struct audio_policy *pol,
+ bool can_mute)
+{
+}
+
+static int ap_init_check(const struct audio_policy *pol)
+{
+ return 0;
+}
+
+static audio_io_handle_t ap_get_output(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ uint32_t sampling_rate,
+ audio_format_t format,
+ audio_channel_mask_t channelMask,
+ audio_output_flags_t flags,
+ const audio_offload_info_t *info)
+{
+ return 0;
+}
+
+static int ap_start_output(struct audio_policy *pol, audio_io_handle_t output,
+ audio_stream_type_t stream, int session)
+{
+ return -ENOSYS;
+}
+
+static int ap_stop_output(struct audio_policy *pol, audio_io_handle_t output,
+ audio_stream_type_t stream, int session)
+{
+ return -ENOSYS;
+}
+
+static void ap_release_output(struct audio_policy *pol,
+ audio_io_handle_t output)
+{
+}
+
+static audio_io_handle_t ap_get_input(struct audio_policy *pol, audio_source_t inputSource,
+ uint32_t sampling_rate,
+ audio_format_t format,
+ audio_channel_mask_t channelMask,
+ audio_in_acoustics_t acoustics)
+{
+ return 0;
+}
+
+static int ap_start_input(struct audio_policy *pol, audio_io_handle_t input)
+{
+ return -ENOSYS;
+}
+
+static int ap_stop_input(struct audio_policy *pol, audio_io_handle_t input)
+{
+ return -ENOSYS;
+}
+
+static void ap_release_input(struct audio_policy *pol, audio_io_handle_t input)
+{
+}
+
+static void ap_init_stream_volume(struct audio_policy *pol,
+ audio_stream_type_t stream, int index_min,
+ int index_max)
+{
+}
+
+static int ap_set_stream_volume_index(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int index)
+{
+ return -ENOSYS;
+}
+
+static int ap_get_stream_volume_index(const struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int *index)
+{
+ return -ENOSYS;
+}
+
+static int ap_set_stream_volume_index_for_device(struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int index,
+ audio_devices_t device)
+{
+ return -ENOSYS;
+}
+
+static int ap_get_stream_volume_index_for_device(const struct audio_policy *pol,
+ audio_stream_type_t stream,
+ int *index,
+ audio_devices_t device)
+{
+ return -ENOSYS;
+}
+
+static uint32_t ap_get_strategy_for_stream(const struct audio_policy *pol,
+ audio_stream_type_t stream)
+{
+ return 0;
+}
+
+static audio_devices_t ap_get_devices_for_stream(const struct audio_policy *pol,
+ audio_stream_type_t stream)
+{
+ return 0;
+}
+
+static audio_io_handle_t ap_get_output_for_effect(struct audio_policy *pol,
+ const struct effect_descriptor_s *desc)
+{
+ return 0;
+}
+
+static int ap_register_effect(struct audio_policy *pol,
+ const struct effect_descriptor_s *desc,
+ audio_io_handle_t output,
+ uint32_t strategy,
+ int session,
+ int id)
+{
+ return -ENOSYS;
+}
+
+static int ap_unregister_effect(struct audio_policy *pol, int id)
+{
+ return -ENOSYS;
+}
+
+static int ap_set_effect_enabled(struct audio_policy *pol, int id, bool enabled)
+{
+ return -ENOSYS;
+}
+
+static bool ap_is_stream_active(const struct audio_policy *pol, audio_stream_type_t stream,
+ uint32_t in_past_ms)
+{
+ return false;
+}
+
+static int ap_dump(const struct audio_policy *pol, int fd)
+{
+ return -ENOSYS;
+}
+
+static bool ap_is_offload_supported(const struct audio_policy *pol,
+ const audio_offload_info_t *info)
+{
+ return false;
+}
+
+static int create_default_ap(const struct audio_policy_device *device,
+ struct audio_policy_service_ops *aps_ops,
+ void *service,
+ struct audio_policy **ap)
+{
+ struct default_ap_device *dev;
+ struct default_audio_policy *dap;
+ int ret;
+
+ *ap = NULL;
+
+ if (!service || !aps_ops)
+ return -EINVAL;
+
+ dap = (struct default_audio_policy *)calloc(1, sizeof(*dap));
+ if (!dap)
+ return -ENOMEM;
+
+ dap->policy.set_device_connection_state = ap_set_device_connection_state;
+ dap->policy.get_device_connection_state = ap_get_device_connection_state;
+ dap->policy.set_phone_state = ap_set_phone_state;
+ dap->policy.set_ringer_mode = ap_set_ringer_mode;
+ dap->policy.set_force_use = ap_set_force_use;
+ dap->policy.get_force_use = ap_get_force_use;
+ dap->policy.set_can_mute_enforced_audible =
+ ap_set_can_mute_enforced_audible;
+ dap->policy.init_check = ap_init_check;
+ dap->policy.get_output = ap_get_output;
+ dap->policy.start_output = ap_start_output;
+ dap->policy.stop_output = ap_stop_output;
+ dap->policy.release_output = ap_release_output;
+ dap->policy.get_input = ap_get_input;
+ dap->policy.start_input = ap_start_input;
+ dap->policy.stop_input = ap_stop_input;
+ dap->policy.release_input = ap_release_input;
+ dap->policy.init_stream_volume = ap_init_stream_volume;
+ dap->policy.set_stream_volume_index = ap_set_stream_volume_index;
+ dap->policy.get_stream_volume_index = ap_get_stream_volume_index;
+ dap->policy.set_stream_volume_index_for_device = ap_set_stream_volume_index_for_device;
+ dap->policy.get_stream_volume_index_for_device = ap_get_stream_volume_index_for_device;
+ dap->policy.get_strategy_for_stream = ap_get_strategy_for_stream;
+ dap->policy.get_devices_for_stream = ap_get_devices_for_stream;
+ dap->policy.get_output_for_effect = ap_get_output_for_effect;
+ dap->policy.register_effect = ap_register_effect;
+ dap->policy.unregister_effect = ap_unregister_effect;
+ dap->policy.set_effect_enabled = ap_set_effect_enabled;
+ dap->policy.is_stream_active = ap_is_stream_active;
+ dap->policy.dump = ap_dump;
+
+ dap->policy.is_offload_supported = ap_is_offload_supported;
+
+ dap->service = service;
+ dap->aps_ops = aps_ops;
+
+ *ap = &dap->policy;
+ return 0;
+}
+
+static int destroy_default_ap(const struct audio_policy_device *ap_dev,
+ struct audio_policy *ap)
+{
+ free(ap);
+ return 0;
+}
+
+static int default_ap_dev_close(hw_device_t* device)
+{
+ free(device);
+ return 0;
+}
+
+static int default_ap_dev_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ struct default_ap_device *dev;
+
+ *device = NULL;
+
+ if (strcmp(name, AUDIO_POLICY_INTERFACE) != 0)
+ return -EINVAL;
+
+ dev = (struct default_ap_device *)calloc(1, sizeof(*dev));
+ if (!dev)
+ return -ENOMEM;
+
+ dev->device.common.tag = HARDWARE_DEVICE_TAG;
+ dev->device.common.version = 0;
+ dev->device.common.module = (hw_module_t *)module;
+ dev->device.common.close = default_ap_dev_close;
+ dev->device.create_audio_policy = create_default_ap;
+ dev->device.destroy_audio_policy = destroy_default_ap;
+
+ *device = &dev->device.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t default_ap_module_methods = {
+ .open = default_ap_dev_open,
+};
+
+struct default_ap_module HAL_MODULE_INFO_SYM = {
+ .module = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .version_major = 1,
+ .version_minor = 0,
+ .id = AUDIO_POLICY_HARDWARE_MODULE_ID,
+ .name = "Default audio policy HAL",
+ .author = "The Android Open Source Project",
+ .methods = &default_ap_module_methods,
+ },
+ },
+};
diff --git a/libhardware/modules/audio_remote_submix/Android.mk b/libhardware/modules/audio_remote_submix/Android.mk
new file mode 100644
index 0000000..90da396
--- /dev/null
+++ b/libhardware/modules/audio_remote_submix/Android.mk
@@ -0,0 +1,32 @@
+# Copyright (C) 2012 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := audio.r_submix.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := \
+ audio_hw.cpp
+LOCAL_C_INCLUDES += \
+ frameworks/av/include/ \
+ frameworks/native/include/
+LOCAL_SHARED_LIBRARIES := liblog libcutils libutils libnbaio
+LOCAL_STATIC_LIBRARIES := libmedia_helper
+LOCAL_MODULE_TAGS := optional
+LOCAL_CFLAGS := -Wno-unused-parameter
+
+include $(BUILD_SHARED_LIBRARY)
+
diff --git a/libhardware/modules/audio_remote_submix/audio_hw.cpp b/libhardware/modules/audio_remote_submix/audio_hw.cpp
new file mode 100644
index 0000000..ed3d311
--- /dev/null
+++ b/libhardware/modules/audio_remote_submix/audio_hw.cpp
@@ -0,0 +1,1782 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "r_submix"
+//#define LOG_NDEBUG 0
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/limits.h>
+
+#include <cutils/compiler.h>
+#include <cutils/log.h>
+#include <cutils/properties.h>
+#include <cutils/str_parms.h>
+
+#include <hardware/audio.h>
+#include <hardware/hardware.h>
+#include <system/audio.h>
+
+#include <media/AudioParameter.h>
+#include <media/AudioBufferProvider.h>
+#include <media/nbaio/MonoPipe.h>
+#include <media/nbaio/MonoPipeReader.h>
+
+#include <utils/String8.h>
+
+#define LOG_STREAMS_TO_FILES 0
+#if LOG_STREAMS_TO_FILES
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#endif // LOG_STREAMS_TO_FILES
+
+extern "C" {
+
+namespace android {
+
+// Set to 1 to enable extremely verbose logging in this module.
+#define SUBMIX_VERBOSE_LOGGING 0
+#if SUBMIX_VERBOSE_LOGGING
+#define SUBMIX_ALOGV(...) ALOGV(__VA_ARGS__)
+#define SUBMIX_ALOGE(...) ALOGE(__VA_ARGS__)
+#else
+#define SUBMIX_ALOGV(...)
+#define SUBMIX_ALOGE(...)
+#endif // SUBMIX_VERBOSE_LOGGING
+
+// NOTE: This value will be rounded up to the nearest power of 2 by MonoPipe().
+#define DEFAULT_PIPE_SIZE_IN_FRAMES (1024*4)
+// Value used to divide the MonoPipe() buffer into segments that are written to the source and
+// read from the sink. The maximum latency of the device is the size of the MonoPipe's buffer
+// the minimum latency is the MonoPipe buffer size divided by this value.
+#define DEFAULT_PIPE_PERIOD_COUNT 4
+// The duration of MAX_READ_ATTEMPTS * READ_ATTEMPT_SLEEP_MS must be stricly inferior to
+// the duration of a record buffer at the current record sample rate (of the device, not of
+// the recording itself). Here we have:
+// 3 * 5ms = 15ms < 1024 frames * 1000 / 48000 = 21.333ms
+#define MAX_READ_ATTEMPTS 3
+#define READ_ATTEMPT_SLEEP_MS 5 // 5ms between two read attempts when pipe is empty
+#define DEFAULT_SAMPLE_RATE_HZ 48000 // default sample rate
+// See NBAIO_Format frameworks/av/include/media/nbaio/NBAIO.h.
+#define DEFAULT_FORMAT AUDIO_FORMAT_PCM_16_BIT
+// A legacy user of this device does not close the input stream when it shuts down, which
+// results in the application opening a new input stream before closing the old input stream
+// handle it was previously using. Setting this value to 1 allows multiple clients to open
+// multiple input streams from this device. If this option is enabled, each input stream returned
+// is *the same stream* which means that readers will race to read data from these streams.
+#define ENABLE_LEGACY_INPUT_OPEN 1
+// Whether channel conversion (16-bit signed PCM mono->stereo, stereo->mono) is enabled.
+#define ENABLE_CHANNEL_CONVERSION 1
+// Whether resampling is enabled.
+#define ENABLE_RESAMPLING 1
+#if LOG_STREAMS_TO_FILES
+// Folder to save stream log files to.
+#define LOG_STREAM_FOLDER "/data/misc/media"
+// Log filenames for input and output streams.
+#define LOG_STREAM_OUT_FILENAME LOG_STREAM_FOLDER "/r_submix_out.raw"
+#define LOG_STREAM_IN_FILENAME LOG_STREAM_FOLDER "/r_submix_in.raw"
+// File permissions for stream log files.
+#define LOG_STREAM_FILE_PERMISSIONS (S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
+#endif // LOG_STREAMS_TO_FILES
+// limit for number of read error log entries to avoid spamming the logs
+#define MAX_READ_ERROR_LOGS 5
+
+// Common limits macros.
+#ifndef min
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#endif // min
+#ifndef max
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#endif // max
+
+// Set *result_variable_ptr to true if value_to_find is present in the array array_to_search,
+// otherwise set *result_variable_ptr to false.
+#define SUBMIX_VALUE_IN_SET(value_to_find, array_to_search, result_variable_ptr) \
+ { \
+ size_t i; \
+ *(result_variable_ptr) = false; \
+ for (i = 0; i < sizeof(array_to_search) / sizeof((array_to_search)[0]); i++) { \
+ if ((value_to_find) == (array_to_search)[i]) { \
+ *(result_variable_ptr) = true; \
+ break; \
+ } \
+ } \
+ }
+
+// Configuration of the submix pipe.
+struct submix_config {
+ // Channel mask field in this data structure is set to either input_channel_mask or
+ // output_channel_mask depending upon the last stream to be opened on this device.
+ struct audio_config common;
+ // Input stream and output stream channel masks. This is required since input and output
+ // channel bitfields are not equivalent.
+ audio_channel_mask_t input_channel_mask;
+ audio_channel_mask_t output_channel_mask;
+#if ENABLE_RESAMPLING
+ // Input stream and output stream sample rates.
+ uint32_t input_sample_rate;
+ uint32_t output_sample_rate;
+#endif // ENABLE_RESAMPLING
+ size_t pipe_frame_size; // Number of bytes in each audio frame in the pipe.
+ size_t buffer_size_frames; // Size of the audio pipe in frames.
+ // Maximum number of frames buffered by the input and output streams.
+ size_t buffer_period_size_frames;
+};
+
+#define MAX_ROUTES 10
+typedef struct route_config {
+ struct submix_config config;
+ char address[AUDIO_DEVICE_MAX_ADDRESS_LEN];
+ // Pipe variables: they handle the ring buffer that "pipes" audio:
+ // - from the submix virtual audio output == what needs to be played
+ // remotely, seen as an output for AudioFlinger
+ // - to the virtual audio source == what is captured by the component
+ // which "records" the submix / virtual audio source, and handles it as needed.
+ // A usecase example is one where the component capturing the audio is then sending it over
+ // Wifi for presentation on a remote Wifi Display device (e.g. a dongle attached to a TV, or a
+ // TV with Wifi Display capabilities), or to a wireless audio player.
+ sp<MonoPipe> rsxSink;
+ sp<MonoPipeReader> rsxSource;
+ // Pointers to the current input and output stream instances. rsxSink and rsxSource are
+ // destroyed if both and input and output streams are destroyed.
+ struct submix_stream_out *output;
+ struct submix_stream_in *input;
+#if ENABLE_RESAMPLING
+ // Buffer used as temporary storage for resampled data prior to returning data to the output
+ // stream.
+ int16_t resampler_buffer[DEFAULT_PIPE_SIZE_IN_FRAMES];
+#endif // ENABLE_RESAMPLING
+} route_config_t;
+
+struct submix_audio_device {
+ struct audio_hw_device device;
+ route_config_t routes[MAX_ROUTES];
+ // Device lock, also used to protect access to submix_audio_device from the input and output
+ // streams.
+ pthread_mutex_t lock;
+};
+
+struct submix_stream_out {
+ struct audio_stream_out stream;
+ struct submix_audio_device *dev;
+ int route_handle;
+ bool output_standby;
+ uint64_t frames_written;
+ uint64_t frames_written_since_standby;
+#if LOG_STREAMS_TO_FILES
+ int log_fd;
+#endif // LOG_STREAMS_TO_FILES
+};
+
+struct submix_stream_in {
+ struct audio_stream_in stream;
+ struct submix_audio_device *dev;
+ int route_handle;
+ bool input_standby;
+ bool output_standby_rec_thr; // output standby state as seen from record thread
+ // wall clock when recording starts
+ struct timespec record_start_time;
+ // how many frames have been requested to be read
+ uint64_t read_counter_frames;
+
+#if ENABLE_LEGACY_INPUT_OPEN
+ // Number of references to this input stream.
+ volatile int32_t ref_count;
+#endif // ENABLE_LEGACY_INPUT_OPEN
+#if LOG_STREAMS_TO_FILES
+ int log_fd;
+#endif // LOG_STREAMS_TO_FILES
+
+ volatile int16_t read_error_count;
+};
+
+// Determine whether the specified sample rate is supported by the submix module.
+static bool sample_rate_supported(const uint32_t sample_rate)
+{
+ // Set of sample rates supported by Format_from_SR_C() frameworks/av/media/libnbaio/NAIO.cpp.
+ static const unsigned int supported_sample_rates[] = {
+ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000,
+ };
+ bool return_value;
+ SUBMIX_VALUE_IN_SET(sample_rate, supported_sample_rates, &return_value);
+ return return_value;
+}
+
+// Determine whether the specified sample rate is supported, if it is return the specified sample
+// rate, otherwise return the default sample rate for the submix module.
+static uint32_t get_supported_sample_rate(uint32_t sample_rate)
+{
+ return sample_rate_supported(sample_rate) ? sample_rate : DEFAULT_SAMPLE_RATE_HZ;
+}
+
+// Determine whether the specified channel in mask is supported by the submix module.
+static bool channel_in_mask_supported(const audio_channel_mask_t channel_in_mask)
+{
+ // Set of channel in masks supported by Format_from_SR_C()
+ // frameworks/av/media/libnbaio/NAIO.cpp.
+ static const audio_channel_mask_t supported_channel_in_masks[] = {
+ AUDIO_CHANNEL_IN_MONO, AUDIO_CHANNEL_IN_STEREO,
+ };
+ bool return_value;
+ SUBMIX_VALUE_IN_SET(channel_in_mask, supported_channel_in_masks, &return_value);
+ return return_value;
+}
+
+// Determine whether the specified channel in mask is supported, if it is return the specified
+// channel in mask, otherwise return the default channel in mask for the submix module.
+static audio_channel_mask_t get_supported_channel_in_mask(
+ const audio_channel_mask_t channel_in_mask)
+{
+ return channel_in_mask_supported(channel_in_mask) ? channel_in_mask :
+ static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_IN_STEREO);
+}
+
+// Determine whether the specified channel out mask is supported by the submix module.
+static bool channel_out_mask_supported(const audio_channel_mask_t channel_out_mask)
+{
+ // Set of channel out masks supported by Format_from_SR_C()
+ // frameworks/av/media/libnbaio/NAIO.cpp.
+ static const audio_channel_mask_t supported_channel_out_masks[] = {
+ AUDIO_CHANNEL_OUT_MONO, AUDIO_CHANNEL_OUT_STEREO,
+ };
+ bool return_value;
+ SUBMIX_VALUE_IN_SET(channel_out_mask, supported_channel_out_masks, &return_value);
+ return return_value;
+}
+
+// Determine whether the specified channel out mask is supported, if it is return the specified
+// channel out mask, otherwise return the default channel out mask for the submix module.
+static audio_channel_mask_t get_supported_channel_out_mask(
+ const audio_channel_mask_t channel_out_mask)
+{
+ return channel_out_mask_supported(channel_out_mask) ? channel_out_mask :
+ static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_OUT_STEREO);
+}
+
+// Get a pointer to submix_stream_out given an audio_stream_out that is embedded within the
+// structure.
+static struct submix_stream_out * audio_stream_out_get_submix_stream_out(
+ struct audio_stream_out * const stream)
+{
+ ALOG_ASSERT(stream);
+ return reinterpret_cast<struct submix_stream_out *>(reinterpret_cast<uint8_t *>(stream) -
+ offsetof(struct submix_stream_out, stream));
+}
+
+// Get a pointer to submix_stream_out given an audio_stream that is embedded within the structure.
+static struct submix_stream_out * audio_stream_get_submix_stream_out(
+ struct audio_stream * const stream)
+{
+ ALOG_ASSERT(stream);
+ return audio_stream_out_get_submix_stream_out(
+ reinterpret_cast<struct audio_stream_out *>(stream));
+}
+
+// Get a pointer to submix_stream_in given an audio_stream_in that is embedded within the
+// structure.
+static struct submix_stream_in * audio_stream_in_get_submix_stream_in(
+ struct audio_stream_in * const stream)
+{
+ ALOG_ASSERT(stream);
+ return reinterpret_cast<struct submix_stream_in *>(reinterpret_cast<uint8_t *>(stream) -
+ offsetof(struct submix_stream_in, stream));
+}
+
+// Get a pointer to submix_stream_in given an audio_stream that is embedded within the structure.
+static struct submix_stream_in * audio_stream_get_submix_stream_in(
+ struct audio_stream * const stream)
+{
+ ALOG_ASSERT(stream);
+ return audio_stream_in_get_submix_stream_in(
+ reinterpret_cast<struct audio_stream_in *>(stream));
+}
+
+// Get a pointer to submix_audio_device given a pointer to an audio_device that is embedded within
+// the structure.
+static struct submix_audio_device * audio_hw_device_get_submix_audio_device(
+ struct audio_hw_device *device)
+{
+ ALOG_ASSERT(device);
+ return reinterpret_cast<struct submix_audio_device *>(reinterpret_cast<uint8_t *>(device) -
+ offsetof(struct submix_audio_device, device));
+}
+
+// Compare an audio_config with input channel mask and an audio_config with output channel mask
+// returning false if they do *not* match, true otherwise.
+static bool audio_config_compare(const audio_config * const input_config,
+ const audio_config * const output_config)
+{
+#if !ENABLE_CHANNEL_CONVERSION
+ const uint32_t input_channels = audio_channel_count_from_in_mask(input_config->channel_mask);
+ const uint32_t output_channels = audio_channel_count_from_out_mask(output_config->channel_mask);
+ if (input_channels != output_channels) {
+ ALOGE("audio_config_compare() channel count mismatch input=%d vs. output=%d",
+ input_channels, output_channels);
+ return false;
+ }
+#endif // !ENABLE_CHANNEL_CONVERSION
+#if ENABLE_RESAMPLING
+ if (input_config->sample_rate != output_config->sample_rate &&
+ audio_channel_count_from_in_mask(input_config->channel_mask) != 1) {
+#else
+ if (input_config->sample_rate != output_config->sample_rate) {
+#endif // ENABLE_RESAMPLING
+ ALOGE("audio_config_compare() sample rate mismatch %ul vs. %ul",
+ input_config->sample_rate, output_config->sample_rate);
+ return false;
+ }
+ if (input_config->format != output_config->format) {
+ ALOGE("audio_config_compare() format mismatch %x vs. %x",
+ input_config->format, output_config->format);
+ return false;
+ }
+ // This purposely ignores offload_info as it's not required for the submix device.
+ return true;
+}
+
+// If one doesn't exist, create a pipe for the submix audio device rsxadev of size
+// buffer_size_frames and optionally associate "in" or "out" with the submix audio device.
+// Must be called with lock held on the submix_audio_device
+static void submix_audio_device_create_pipe_l(struct submix_audio_device * const rsxadev,
+ const struct audio_config * const config,
+ const size_t buffer_size_frames,
+ const uint32_t buffer_period_count,
+ struct submix_stream_in * const in,
+ struct submix_stream_out * const out,
+ const char *address,
+ int route_idx)
+{
+ ALOG_ASSERT(in || out);
+ ALOG_ASSERT(route_idx > -1);
+ ALOG_ASSERT(route_idx < MAX_ROUTES);
+ ALOGD("submix_audio_device_create_pipe_l(addr=%s, idx=%d)", address, route_idx);
+
+ // Save a reference to the specified input or output stream and the associated channel
+ // mask.
+ if (in) {
+ in->route_handle = route_idx;
+ rsxadev->routes[route_idx].input = in;
+ rsxadev->routes[route_idx].config.input_channel_mask = config->channel_mask;
+#if ENABLE_RESAMPLING
+ rsxadev->routes[route_idx].config.input_sample_rate = config->sample_rate;
+ // If the output isn't configured yet, set the output sample rate to the maximum supported
+ // sample rate such that the smallest possible input buffer is created, and put a default
+ // value for channel count
+ if (!rsxadev->routes[route_idx].output) {
+ rsxadev->routes[route_idx].config.output_sample_rate = 48000;
+ rsxadev->routes[route_idx].config.output_channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+ }
+#endif // ENABLE_RESAMPLING
+ }
+ if (out) {
+ out->route_handle = route_idx;
+ rsxadev->routes[route_idx].output = out;
+ rsxadev->routes[route_idx].config.output_channel_mask = config->channel_mask;
+#if ENABLE_RESAMPLING
+ rsxadev->routes[route_idx].config.output_sample_rate = config->sample_rate;
+#endif // ENABLE_RESAMPLING
+ }
+ // Save the address
+ strncpy(rsxadev->routes[route_idx].address, address, AUDIO_DEVICE_MAX_ADDRESS_LEN);
+ ALOGD(" now using address %s for route %d", rsxadev->routes[route_idx].address, route_idx);
+ // If a pipe isn't associated with the device, create one.
+ if (rsxadev->routes[route_idx].rsxSink == NULL || rsxadev->routes[route_idx].rsxSource == NULL)
+ {
+ struct submix_config * const device_config = &rsxadev->routes[route_idx].config;
+ uint32_t channel_count;
+ if (out)
+ channel_count = audio_channel_count_from_out_mask(config->channel_mask);
+ else
+ channel_count = audio_channel_count_from_in_mask(config->channel_mask);
+#if ENABLE_CHANNEL_CONVERSION
+ // If channel conversion is enabled, allocate enough space for the maximum number of
+ // possible channels stored in the pipe for the situation when the number of channels in
+ // the output stream don't match the number in the input stream.
+ const uint32_t pipe_channel_count = max(channel_count, 2);
+#else
+ const uint32_t pipe_channel_count = channel_count;
+#endif // ENABLE_CHANNEL_CONVERSION
+ const NBAIO_Format format = Format_from_SR_C(config->sample_rate, pipe_channel_count,
+ config->format);
+ const NBAIO_Format offers[1] = {format};
+ size_t numCounterOffers = 0;
+ // Create a MonoPipe with optional blocking set to true.
+ MonoPipe* sink = new MonoPipe(buffer_size_frames, format, true /*writeCanBlock*/);
+ // Negotiation between the source and sink cannot fail as the device open operation
+ // creates both ends of the pipe using the same audio format.
+ ssize_t index = sink->negotiate(offers, 1, NULL, numCounterOffers);
+ ALOG_ASSERT(index == 0);
+ MonoPipeReader* source = new MonoPipeReader(sink);
+ numCounterOffers = 0;
+ index = source->negotiate(offers, 1, NULL, numCounterOffers);
+ ALOG_ASSERT(index == 0);
+ ALOGV("submix_audio_device_create_pipe_l(): created pipe");
+
+ // Save references to the source and sink.
+ ALOG_ASSERT(rsxadev->routes[route_idx].rsxSink == NULL);
+ ALOG_ASSERT(rsxadev->routes[route_idx].rsxSource == NULL);
+ rsxadev->routes[route_idx].rsxSink = sink;
+ rsxadev->routes[route_idx].rsxSource = source;
+ // Store the sanitized audio format in the device so that it's possible to determine
+ // the format of the pipe source when opening the input device.
+ memcpy(&device_config->common, config, sizeof(device_config->common));
+ device_config->buffer_size_frames = sink->maxFrames();
+ device_config->buffer_period_size_frames = device_config->buffer_size_frames /
+ buffer_period_count;
+ if (in) device_config->pipe_frame_size = audio_stream_in_frame_size(&in->stream);
+ if (out) device_config->pipe_frame_size = audio_stream_out_frame_size(&out->stream);
+#if ENABLE_CHANNEL_CONVERSION
+ // Calculate the pipe frame size based upon the number of channels.
+ device_config->pipe_frame_size = (device_config->pipe_frame_size * pipe_channel_count) /
+ channel_count;
+#endif // ENABLE_CHANNEL_CONVERSION
+ SUBMIX_ALOGV("submix_audio_device_create_pipe_l(): pipe frame size %zd, pipe size %zd, "
+ "period size %zd", device_config->pipe_frame_size,
+ device_config->buffer_size_frames, device_config->buffer_period_size_frames);
+ }
+}
+
+// Release references to the sink and source. Input and output threads may maintain references
+// to these objects via StrongPointer (sp<MonoPipe> and sp<MonoPipeReader>) which they can use
+// before they shutdown.
+// Must be called with lock held on the submix_audio_device
+static void submix_audio_device_release_pipe_l(struct submix_audio_device * const rsxadev,
+ int route_idx)
+{
+ ALOG_ASSERT(route_idx > -1);
+ ALOG_ASSERT(route_idx < MAX_ROUTES);
+ ALOGD("submix_audio_device_release_pipe_l(idx=%d) addr=%s", route_idx,
+ rsxadev->routes[route_idx].address);
+ if (rsxadev->routes[route_idx].rsxSink != 0) {
+ rsxadev->routes[route_idx].rsxSink.clear();
+ rsxadev->routes[route_idx].rsxSink = 0;
+ }
+ if (rsxadev->routes[route_idx].rsxSource != 0) {
+ rsxadev->routes[route_idx].rsxSource.clear();
+ rsxadev->routes[route_idx].rsxSource = 0;
+ }
+ memset(rsxadev->routes[route_idx].address, 0, AUDIO_DEVICE_MAX_ADDRESS_LEN);
+#ifdef ENABLE_RESAMPLING
+ memset(rsxadev->routes[route_idx].resampler_buffer, 0,
+ sizeof(int16_t) * DEFAULT_PIPE_SIZE_IN_FRAMES);
+#endif
+}
+
+// Remove references to the specified input and output streams. When the device no longer
+// references input and output streams destroy the associated pipe.
+// Must be called with lock held on the submix_audio_device
+static void submix_audio_device_destroy_pipe_l(struct submix_audio_device * const rsxadev,
+ const struct submix_stream_in * const in,
+ const struct submix_stream_out * const out)
+{
+ MonoPipe* sink;
+ ALOGV("submix_audio_device_destroy_pipe_l()");
+ int route_idx = -1;
+ if (in != NULL) {
+#if ENABLE_LEGACY_INPUT_OPEN
+ const_cast<struct submix_stream_in*>(in)->ref_count--;
+ route_idx = in->route_handle;
+ ALOG_ASSERT(rsxadev->routes[route_idx].input == in);
+ if (in->ref_count == 0) {
+ rsxadev->routes[route_idx].input = NULL;
+ }
+ ALOGV("submix_audio_device_destroy_pipe_l(): input ref_count %d", in->ref_count);
+#else
+ rsxadev->input = NULL;
+#endif // ENABLE_LEGACY_INPUT_OPEN
+ }
+ if (out != NULL) {
+ route_idx = out->route_handle;
+ ALOG_ASSERT(rsxadev->routes[route_idx].output == out);
+ rsxadev->routes[route_idx].output = NULL;
+ }
+ if (route_idx != -1 &&
+ rsxadev->routes[route_idx].input == NULL && rsxadev->routes[route_idx].output == NULL) {
+ submix_audio_device_release_pipe_l(rsxadev, route_idx);
+ ALOGD("submix_audio_device_destroy_pipe_l(): pipe destroyed");
+ }
+}
+
+// Sanitize the user specified audio config for a submix input / output stream.
+static void submix_sanitize_config(struct audio_config * const config, const bool is_input_format)
+{
+ config->channel_mask = is_input_format ? get_supported_channel_in_mask(config->channel_mask) :
+ get_supported_channel_out_mask(config->channel_mask);
+ config->sample_rate = get_supported_sample_rate(config->sample_rate);
+ config->format = DEFAULT_FORMAT;
+}
+
+// Verify a submix input or output stream can be opened.
+// Must be called with lock held on the submix_audio_device
+static bool submix_open_validate_l(const struct submix_audio_device * const rsxadev,
+ int route_idx,
+ const struct audio_config * const config,
+ const bool opening_input)
+{
+ bool input_open;
+ bool output_open;
+ audio_config pipe_config;
+
+ // Query the device for the current audio config and whether input and output streams are open.
+ output_open = rsxadev->routes[route_idx].output != NULL;
+ input_open = rsxadev->routes[route_idx].input != NULL;
+ memcpy(&pipe_config, &rsxadev->routes[route_idx].config.common, sizeof(pipe_config));
+
+ // If the stream is already open, don't open it again.
+ if (opening_input ? !ENABLE_LEGACY_INPUT_OPEN && input_open : output_open) {
+ ALOGE("submix_open_validate_l(): %s stream already open.", opening_input ? "Input" :
+ "Output");
+ return false;
+ }
+
+ SUBMIX_ALOGV("submix_open_validate_l(): sample rate=%d format=%x "
+ "%s_channel_mask=%x", config->sample_rate, config->format,
+ opening_input ? "in" : "out", config->channel_mask);
+
+ // If either stream is open, verify the existing audio config the pipe matches the user
+ // specified config.
+ if (input_open || output_open) {
+ const audio_config * const input_config = opening_input ? config : &pipe_config;
+ const audio_config * const output_config = opening_input ? &pipe_config : config;
+ // Get the channel mask of the open device.
+ pipe_config.channel_mask =
+ opening_input ? rsxadev->routes[route_idx].config.output_channel_mask :
+ rsxadev->routes[route_idx].config.input_channel_mask;
+ if (!audio_config_compare(input_config, output_config)) {
+ ALOGE("submix_open_validate_l(): Unsupported format.");
+ return false;
+ }
+ }
+ return true;
+}
+
+// Must be called with lock held on the submix_audio_device
+static status_t submix_get_route_idx_for_address_l(const struct submix_audio_device * const rsxadev,
+ const char* address, /*in*/
+ int *idx /*out*/)
+{
+ // Do we already have a route for this address
+ int route_idx = -1;
+ int route_empty_idx = -1; // index of an empty route slot that can be used if needed
+ for (int i=0 ; i < MAX_ROUTES ; i++) {
+ if (strcmp(rsxadev->routes[i].address, "") == 0) {
+ route_empty_idx = i;
+ }
+ if (strncmp(rsxadev->routes[i].address, address, AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) {
+ route_idx = i;
+ break;
+ }
+ }
+
+ if ((route_idx == -1) && (route_empty_idx == -1)) {
+ ALOGE("Cannot create new route for address %s, max number of routes reached", address);
+ return -ENOMEM;
+ }
+ if (route_idx == -1) {
+ route_idx = route_empty_idx;
+ }
+ *idx = route_idx;
+ return OK;
+}
+
+
+// Calculate the maximum size of the pipe buffer in frames for the specified stream.
+static size_t calculate_stream_pipe_size_in_frames(const struct audio_stream *stream,
+ const struct submix_config *config,
+ const size_t pipe_frames,
+ const size_t stream_frame_size)
+{
+ const size_t pipe_frame_size = config->pipe_frame_size;
+ const size_t max_frame_size = max(stream_frame_size, pipe_frame_size);
+ return (pipe_frames * config->pipe_frame_size) / max_frame_size;
+}
+
+/* audio HAL functions */
+
+static uint32_t out_get_sample_rate(const struct audio_stream *stream)
+{
+ const struct submix_stream_out * const out = audio_stream_get_submix_stream_out(
+ const_cast<struct audio_stream *>(stream));
+#if ENABLE_RESAMPLING
+ const uint32_t out_rate = out->dev->routes[out->route_handle].config.output_sample_rate;
+#else
+ const uint32_t out_rate = out->dev->routes[out->route_handle].config.common.sample_rate;
+#endif // ENABLE_RESAMPLING
+ SUBMIX_ALOGV("out_get_sample_rate() returns %u for addr %s",
+ out_rate, out->dev->routes[out->route_handle].address);
+ return out_rate;
+}
+
+static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+ struct submix_stream_out * const out = audio_stream_get_submix_stream_out(stream);
+#if ENABLE_RESAMPLING
+ // The sample rate of the stream can't be changed once it's set since this would change the
+ // output buffer size and hence break playback to the shared pipe.
+ if (rate != out->dev->routes[out->route_handle].config.output_sample_rate) {
+ ALOGE("out_set_sample_rate() resampling enabled can't change sample rate from "
+ "%u to %u for addr %s",
+ out->dev->routes[out->route_handle].config.output_sample_rate, rate,
+ out->dev->routes[out->route_handle].address);
+ return -ENOSYS;
+ }
+#endif // ENABLE_RESAMPLING
+ if (!sample_rate_supported(rate)) {
+ ALOGE("out_set_sample_rate(rate=%u) rate unsupported", rate);
+ return -ENOSYS;
+ }
+ SUBMIX_ALOGV("out_set_sample_rate(rate=%u)", rate);
+ out->dev->routes[out->route_handle].config.common.sample_rate = rate;
+ return 0;
+}
+
+static size_t out_get_buffer_size(const struct audio_stream *stream)
+{
+ const struct submix_stream_out * const out = audio_stream_get_submix_stream_out(
+ const_cast<struct audio_stream *>(stream));
+ const struct submix_config * const config = &out->dev->routes[out->route_handle].config;
+ const size_t stream_frame_size =
+ audio_stream_out_frame_size((const struct audio_stream_out *)stream);
+ const size_t buffer_size_frames = calculate_stream_pipe_size_in_frames(
+ stream, config, config->buffer_period_size_frames, stream_frame_size);
+ const size_t buffer_size_bytes = buffer_size_frames * stream_frame_size;
+ SUBMIX_ALOGV("out_get_buffer_size() returns %zu bytes, %zu frames",
+ buffer_size_bytes, buffer_size_frames);
+ return buffer_size_bytes;
+}
+
+static audio_channel_mask_t out_get_channels(const struct audio_stream *stream)
+{
+ const struct submix_stream_out * const out = audio_stream_get_submix_stream_out(
+ const_cast<struct audio_stream *>(stream));
+ uint32_t channel_mask = out->dev->routes[out->route_handle].config.output_channel_mask;
+ SUBMIX_ALOGV("out_get_channels() returns %08x", channel_mask);
+ return channel_mask;
+}
+
+static audio_format_t out_get_format(const struct audio_stream *stream)
+{
+ const struct submix_stream_out * const out = audio_stream_get_submix_stream_out(
+ const_cast<struct audio_stream *>(stream));
+ const audio_format_t format = out->dev->routes[out->route_handle].config.common.format;
+ SUBMIX_ALOGV("out_get_format() returns %x", format);
+ return format;
+}
+
+static int out_set_format(struct audio_stream *stream, audio_format_t format)
+{
+ const struct submix_stream_out * const out = audio_stream_get_submix_stream_out(stream);
+ if (format != out->dev->routes[out->route_handle].config.common.format) {
+ ALOGE("out_set_format(format=%x) format unsupported", format);
+ return -ENOSYS;
+ }
+ SUBMIX_ALOGV("out_set_format(format=%x)", format);
+ return 0;
+}
+
+static int out_standby(struct audio_stream *stream)
+{
+ ALOGI("out_standby()");
+ struct submix_stream_out * const out = audio_stream_get_submix_stream_out(stream);
+ struct submix_audio_device * const rsxadev = out->dev;
+
+ pthread_mutex_lock(&rsxadev->lock);
+
+ out->output_standby = true;
+ out->frames_written_since_standby = 0;
+
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ return 0;
+}
+
+static int out_dump(const struct audio_stream *stream, int fd)
+{
+ (void)stream;
+ (void)fd;
+ return 0;
+}
+
+static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+ int exiting = -1;
+ AudioParameter parms = AudioParameter(String8(kvpairs));
+ SUBMIX_ALOGV("out_set_parameters() kvpairs='%s'", kvpairs);
+
+ // FIXME this is using hard-coded strings but in the future, this functionality will be
+ // converted to use audio HAL extensions required to support tunneling
+ if ((parms.getInt(String8("exiting"), exiting) == NO_ERROR) && (exiting > 0)) {
+ struct submix_audio_device * const rsxadev =
+ audio_stream_get_submix_stream_out(stream)->dev;
+ pthread_mutex_lock(&rsxadev->lock);
+ { // using the sink
+ sp<MonoPipe> sink =
+ rsxadev->routes[audio_stream_get_submix_stream_out(stream)->route_handle]
+ .rsxSink;
+ if (sink == NULL) {
+ pthread_mutex_unlock(&rsxadev->lock);
+ return 0;
+ }
+
+ ALOGD("out_set_parameters(): shutting down MonoPipe sink");
+ sink->shutdown(true);
+ } // done using the sink
+ pthread_mutex_unlock(&rsxadev->lock);
+ }
+ return 0;
+}
+
+static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
+{
+ (void)stream;
+ (void)keys;
+ return strdup("");
+}
+
+static uint32_t out_get_latency(const struct audio_stream_out *stream)
+{
+ const struct submix_stream_out * const out = audio_stream_out_get_submix_stream_out(
+ const_cast<struct audio_stream_out *>(stream));
+ const struct submix_config * const config = &out->dev->routes[out->route_handle].config;
+ const size_t stream_frame_size =
+ audio_stream_out_frame_size(stream);
+ const size_t buffer_size_frames = calculate_stream_pipe_size_in_frames(
+ &stream->common, config, config->buffer_size_frames, stream_frame_size);
+ const uint32_t sample_rate = out_get_sample_rate(&stream->common);
+ const uint32_t latency_ms = (buffer_size_frames * 1000) / sample_rate;
+ SUBMIX_ALOGV("out_get_latency() returns %u ms, size in frames %zu, sample rate %u",
+ latency_ms, buffer_size_frames, sample_rate);
+ return latency_ms;
+}
+
+static int out_set_volume(struct audio_stream_out *stream, float left,
+ float right)
+{
+ (void)stream;
+ (void)left;
+ (void)right;
+ return -ENOSYS;
+}
+
+static ssize_t out_write(struct audio_stream_out *stream, const void* buffer,
+ size_t bytes)
+{
+ SUBMIX_ALOGV("out_write(bytes=%zd)", bytes);
+ ssize_t written_frames = 0;
+ const size_t frame_size = audio_stream_out_frame_size(stream);
+ struct submix_stream_out * const out = audio_stream_out_get_submix_stream_out(stream);
+ struct submix_audio_device * const rsxadev = out->dev;
+ const size_t frames = bytes / frame_size;
+
+ pthread_mutex_lock(&rsxadev->lock);
+
+ out->output_standby = false;
+
+ sp<MonoPipe> sink = rsxadev->routes[out->route_handle].rsxSink;
+ if (sink != NULL) {
+ if (sink->isShutdown()) {
+ sink.clear();
+ pthread_mutex_unlock(&rsxadev->lock);
+ SUBMIX_ALOGV("out_write(): pipe shutdown, ignoring the write.");
+ // the pipe has already been shutdown, this buffer will be lost but we must
+ // simulate timing so we don't drain the output faster than realtime
+ usleep(frames * 1000000 / out_get_sample_rate(&stream->common));
+ return bytes;
+ }
+ } else {
+ pthread_mutex_unlock(&rsxadev->lock);
+ ALOGE("out_write without a pipe!");
+ ALOG_ASSERT("out_write without a pipe!");
+ return 0;
+ }
+
+ // If the write to the sink would block when no input stream is present, flush enough frames
+ // from the pipe to make space to write the most recent data.
+ {
+ const size_t availableToWrite = sink->availableToWrite();
+ sp<MonoPipeReader> source = rsxadev->routes[out->route_handle].rsxSource;
+ if (rsxadev->routes[out->route_handle].input == NULL && availableToWrite < frames) {
+ static uint8_t flush_buffer[64];
+ const size_t flushBufferSizeFrames = sizeof(flush_buffer) / frame_size;
+ size_t frames_to_flush_from_source = frames - availableToWrite;
+ SUBMIX_ALOGV("out_write(): flushing %d frames from the pipe to avoid blocking",
+ frames_to_flush_from_source);
+ while (frames_to_flush_from_source) {
+ const size_t flush_size = min(frames_to_flush_from_source, flushBufferSizeFrames);
+ frames_to_flush_from_source -= flush_size;
+ // read does not block
+ source->read(flush_buffer, flush_size, AudioBufferProvider::kInvalidPTS);
+ }
+ }
+ }
+
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ written_frames = sink->write(buffer, frames);
+
+#if LOG_STREAMS_TO_FILES
+ if (out->log_fd >= 0) write(out->log_fd, buffer, written_frames * frame_size);
+#endif // LOG_STREAMS_TO_FILES
+
+ if (written_frames < 0) {
+ if (written_frames == (ssize_t)NEGOTIATE) {
+ ALOGE("out_write() write to pipe returned NEGOTIATE");
+
+ pthread_mutex_lock(&rsxadev->lock);
+ sink.clear();
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ written_frames = 0;
+ return 0;
+ } else {
+ // write() returned UNDERRUN or WOULD_BLOCK, retry
+ ALOGE("out_write() write to pipe returned unexpected %zd", written_frames);
+ written_frames = sink->write(buffer, frames);
+ }
+ }
+
+ pthread_mutex_lock(&rsxadev->lock);
+ sink.clear();
+ if (written_frames > 0) {
+ out->frames_written_since_standby += written_frames;
+ out->frames_written += written_frames;
+ }
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ if (written_frames < 0) {
+ ALOGE("out_write() failed writing to pipe with %zd", written_frames);
+ return 0;
+ }
+ const ssize_t written_bytes = written_frames * frame_size;
+ SUBMIX_ALOGV("out_write() wrote %zd bytes %zd frames", written_bytes, written_frames);
+ return written_bytes;
+}
+
+static int out_get_presentation_position(const struct audio_stream_out *stream,
+ uint64_t *frames, struct timespec *timestamp)
+{
+ if (stream == NULL || frames == NULL || timestamp == NULL) {
+ return -EINVAL;
+ }
+
+ const submix_stream_out *out = audio_stream_out_get_submix_stream_out(
+ const_cast<struct audio_stream_out *>(stream));
+ struct submix_audio_device * const rsxadev = out->dev;
+
+ int ret = -EWOULDBLOCK;
+ pthread_mutex_lock(&rsxadev->lock);
+ const ssize_t frames_in_pipe =
+ rsxadev->routes[out->route_handle].rsxSource->availableToRead();
+ if (CC_UNLIKELY(frames_in_pipe < 0)) {
+ *frames = out->frames_written;
+ ret = 0;
+ } else if (out->frames_written >= (uint64_t)frames_in_pipe) {
+ *frames = out->frames_written - frames_in_pipe;
+ ret = 0;
+ }
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ if (ret == 0) {
+ clock_gettime(CLOCK_MONOTONIC, timestamp);
+ }
+
+ SUBMIX_ALOGV("out_get_presentation_position() got frames=%llu timestamp sec=%llu",
+ frames ? *frames : -1, timestamp ? timestamp->tv_sec : -1);
+
+ return ret;
+}
+
+static int out_get_render_position(const struct audio_stream_out *stream,
+ uint32_t *dsp_frames)
+{
+ if (stream == NULL || dsp_frames == NULL) {
+ return -EINVAL;
+ }
+
+ const submix_stream_out *out = audio_stream_out_get_submix_stream_out(
+ const_cast<struct audio_stream_out *>(stream));
+ struct submix_audio_device * const rsxadev = out->dev;
+
+ pthread_mutex_lock(&rsxadev->lock);
+ const ssize_t frames_in_pipe =
+ rsxadev->routes[out->route_handle].rsxSource->availableToRead();
+ if (CC_UNLIKELY(frames_in_pipe < 0)) {
+ *dsp_frames = (uint32_t)out->frames_written_since_standby;
+ } else {
+ *dsp_frames = out->frames_written_since_standby > (uint64_t) frames_in_pipe ?
+ (uint32_t)(out->frames_written_since_standby - frames_in_pipe) : 0;
+ }
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ return 0;
+}
+
+static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ (void)stream;
+ (void)effect;
+ return 0;
+}
+
+static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ (void)stream;
+ (void)effect;
+ return 0;
+}
+
+static int out_get_next_write_timestamp(const struct audio_stream_out *stream,
+ int64_t *timestamp)
+{
+ (void)stream;
+ (void)timestamp;
+ return -EINVAL;
+}
+
+/** audio_stream_in implementation **/
+static uint32_t in_get_sample_rate(const struct audio_stream *stream)
+{
+ const struct submix_stream_in * const in = audio_stream_get_submix_stream_in(
+ const_cast<struct audio_stream*>(stream));
+#if ENABLE_RESAMPLING
+ const uint32_t rate = in->dev->routes[in->route_handle].config.input_sample_rate;
+#else
+ const uint32_t rate = in->dev->routes[in->route_handle].config.common.sample_rate;
+#endif // ENABLE_RESAMPLING
+ SUBMIX_ALOGV("in_get_sample_rate() returns %u", rate);
+ return rate;
+}
+
+static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+ const struct submix_stream_in * const in = audio_stream_get_submix_stream_in(stream);
+#if ENABLE_RESAMPLING
+ // The sample rate of the stream can't be changed once it's set since this would change the
+ // input buffer size and hence break recording from the shared pipe.
+ if (rate != in->dev->routes[in->route_handle].config.input_sample_rate) {
+ ALOGE("in_set_sample_rate() resampling enabled can't change sample rate from "
+ "%u to %u", in->dev->routes[in->route_handle].config.input_sample_rate, rate);
+ return -ENOSYS;
+ }
+#endif // ENABLE_RESAMPLING
+ if (!sample_rate_supported(rate)) {
+ ALOGE("in_set_sample_rate(rate=%u) rate unsupported", rate);
+ return -ENOSYS;
+ }
+ in->dev->routes[in->route_handle].config.common.sample_rate = rate;
+ SUBMIX_ALOGV("in_set_sample_rate() set %u", rate);
+ return 0;
+}
+
+static size_t in_get_buffer_size(const struct audio_stream *stream)
+{
+ const struct submix_stream_in * const in = audio_stream_get_submix_stream_in(
+ const_cast<struct audio_stream*>(stream));
+ const struct submix_config * const config = &in->dev->routes[in->route_handle].config;
+ const size_t stream_frame_size =
+ audio_stream_in_frame_size((const struct audio_stream_in *)stream);
+ size_t buffer_size_frames = calculate_stream_pipe_size_in_frames(
+ stream, config, config->buffer_period_size_frames, stream_frame_size);
+#if ENABLE_RESAMPLING
+ // Scale the size of the buffer based upon the maximum number of frames that could be returned
+ // given the ratio of output to input sample rate.
+ buffer_size_frames = (size_t)(((float)buffer_size_frames *
+ (float)config->input_sample_rate) /
+ (float)config->output_sample_rate);
+#endif // ENABLE_RESAMPLING
+ const size_t buffer_size_bytes = buffer_size_frames * stream_frame_size;
+ SUBMIX_ALOGV("in_get_buffer_size() returns %zu bytes, %zu frames", buffer_size_bytes,
+ buffer_size_frames);
+ return buffer_size_bytes;
+}
+
+static audio_channel_mask_t in_get_channels(const struct audio_stream *stream)
+{
+ const struct submix_stream_in * const in = audio_stream_get_submix_stream_in(
+ const_cast<struct audio_stream*>(stream));
+ const audio_channel_mask_t channel_mask =
+ in->dev->routes[in->route_handle].config.input_channel_mask;
+ SUBMIX_ALOGV("in_get_channels() returns %x", channel_mask);
+ return channel_mask;
+}
+
+static audio_format_t in_get_format(const struct audio_stream *stream)
+{
+ const struct submix_stream_in * const in = audio_stream_get_submix_stream_in(
+ const_cast<struct audio_stream*>(stream));
+ const audio_format_t format = in->dev->routes[in->route_handle].config.common.format;
+ SUBMIX_ALOGV("in_get_format() returns %x", format);
+ return format;
+}
+
+static int in_set_format(struct audio_stream *stream, audio_format_t format)
+{
+ const struct submix_stream_in * const in = audio_stream_get_submix_stream_in(stream);
+ if (format != in->dev->routes[in->route_handle].config.common.format) {
+ ALOGE("in_set_format(format=%x) format unsupported", format);
+ return -ENOSYS;
+ }
+ SUBMIX_ALOGV("in_set_format(format=%x)", format);
+ return 0;
+}
+
+static int in_standby(struct audio_stream *stream)
+{
+ ALOGI("in_standby()");
+ struct submix_stream_in * const in = audio_stream_get_submix_stream_in(stream);
+ struct submix_audio_device * const rsxadev = in->dev;
+
+ pthread_mutex_lock(&rsxadev->lock);
+
+ in->input_standby = true;
+
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ return 0;
+}
+
+static int in_dump(const struct audio_stream *stream, int fd)
+{
+ (void)stream;
+ (void)fd;
+ return 0;
+}
+
+static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+ (void)stream;
+ (void)kvpairs;
+ return 0;
+}
+
+static char * in_get_parameters(const struct audio_stream *stream,
+ const char *keys)
+{
+ (void)stream;
+ (void)keys;
+ return strdup("");
+}
+
+static int in_set_gain(struct audio_stream_in *stream, float gain)
+{
+ (void)stream;
+ (void)gain;
+ return 0;
+}
+
+static ssize_t in_read(struct audio_stream_in *stream, void* buffer,
+ size_t bytes)
+{
+ struct submix_stream_in * const in = audio_stream_in_get_submix_stream_in(stream);
+ struct submix_audio_device * const rsxadev = in->dev;
+ struct audio_config *format;
+ const size_t frame_size = audio_stream_in_frame_size(stream);
+ const size_t frames_to_read = bytes / frame_size;
+
+ SUBMIX_ALOGV("in_read bytes=%zu", bytes);
+ pthread_mutex_lock(&rsxadev->lock);
+
+ const bool output_standby = rsxadev->routes[in->route_handle].output == NULL
+ ? true : rsxadev->routes[in->route_handle].output->output_standby;
+ const bool output_standby_transition = (in->output_standby_rec_thr != output_standby);
+ in->output_standby_rec_thr = output_standby;
+
+ if (in->input_standby || output_standby_transition) {
+ in->input_standby = false;
+ // keep track of when we exit input standby (== first read == start "real recording")
+ // or when we start recording silence, and reset projected time
+ int rc = clock_gettime(CLOCK_MONOTONIC, &in->record_start_time);
+ if (rc == 0) {
+ in->read_counter_frames = 0;
+ }
+ }
+
+ in->read_counter_frames += frames_to_read;
+ size_t remaining_frames = frames_to_read;
+
+ {
+ // about to read from audio source
+ sp<MonoPipeReader> source = rsxadev->routes[in->route_handle].rsxSource;
+ if (source == NULL) {
+ in->read_error_count++;// ok if it rolls over
+ ALOGE_IF(in->read_error_count < MAX_READ_ERROR_LOGS,
+ "no audio pipe yet we're trying to read! (not all errors will be logged)");
+ pthread_mutex_unlock(&rsxadev->lock);
+ usleep(frames_to_read * 1000000 / in_get_sample_rate(&stream->common));
+ memset(buffer, 0, bytes);
+ return bytes;
+ }
+
+ pthread_mutex_unlock(&rsxadev->lock);
+
+ // read the data from the pipe (it's non blocking)
+ int attempts = 0;
+ char* buff = (char*)buffer;
+#if ENABLE_CHANNEL_CONVERSION
+ // Determine whether channel conversion is required.
+ const uint32_t input_channels = audio_channel_count_from_in_mask(
+ rsxadev->routes[in->route_handle].config.input_channel_mask);
+ const uint32_t output_channels = audio_channel_count_from_out_mask(
+ rsxadev->routes[in->route_handle].config.output_channel_mask);
+ if (input_channels != output_channels) {
+ SUBMIX_ALOGV("in_read(): %d output channels will be converted to %d "
+ "input channels", output_channels, input_channels);
+ // Only support 16-bit PCM channel conversion from mono to stereo or stereo to mono.
+ ALOG_ASSERT(rsxadev->routes[in->route_handle].config.common.format ==
+ AUDIO_FORMAT_PCM_16_BIT);
+ ALOG_ASSERT((input_channels == 1 && output_channels == 2) ||
+ (input_channels == 2 && output_channels == 1));
+ }
+#endif // ENABLE_CHANNEL_CONVERSION
+
+#if ENABLE_RESAMPLING
+ const uint32_t input_sample_rate = in_get_sample_rate(&stream->common);
+ const uint32_t output_sample_rate =
+ rsxadev->routes[in->route_handle].config.output_sample_rate;
+ const size_t resampler_buffer_size_frames =
+ sizeof(rsxadev->routes[in->route_handle].resampler_buffer) /
+ sizeof(rsxadev->routes[in->route_handle].resampler_buffer[0]);
+ float resampler_ratio = 1.0f;
+ // Determine whether resampling is required.
+ if (input_sample_rate != output_sample_rate) {
+ resampler_ratio = (float)output_sample_rate / (float)input_sample_rate;
+ // Only support 16-bit PCM mono resampling.
+ // NOTE: Resampling is performed after the channel conversion step.
+ ALOG_ASSERT(rsxadev->routes[in->route_handle].config.common.format ==
+ AUDIO_FORMAT_PCM_16_BIT);
+ ALOG_ASSERT(audio_channel_count_from_in_mask(
+ rsxadev->routes[in->route_handle].config.input_channel_mask) == 1);
+ }
+#endif // ENABLE_RESAMPLING
+
+ while ((remaining_frames > 0) && (attempts < MAX_READ_ATTEMPTS)) {
+ ssize_t frames_read = -1977;
+ size_t read_frames = remaining_frames;
+#if ENABLE_RESAMPLING
+ char* const saved_buff = buff;
+ if (resampler_ratio != 1.0f) {
+ // Calculate the number of frames from the pipe that need to be read to generate
+ // the data for the input stream read.
+ const size_t frames_required_for_resampler = (size_t)(
+ (float)read_frames * (float)resampler_ratio);
+ read_frames = min(frames_required_for_resampler, resampler_buffer_size_frames);
+ // Read into the resampler buffer.
+ buff = (char*)rsxadev->routes[in->route_handle].resampler_buffer;
+ }
+#endif // ENABLE_RESAMPLING
+#if ENABLE_CHANNEL_CONVERSION
+ if (output_channels == 1 && input_channels == 2) {
+ // Need to read half the requested frames since the converted output
+ // data will take twice the space (mono->stereo).
+ read_frames /= 2;
+ }
+#endif // ENABLE_CHANNEL_CONVERSION
+
+ SUBMIX_ALOGV("in_read(): frames available to read %zd", source->availableToRead());
+
+ frames_read = source->read(buff, read_frames, AudioBufferProvider::kInvalidPTS);
+
+ SUBMIX_ALOGV("in_read(): frames read %zd", frames_read);
+
+#if ENABLE_CHANNEL_CONVERSION
+ // Perform in-place channel conversion.
+ // NOTE: In the following "input stream" refers to the data returned by this function
+ // and "output stream" refers to the data read from the pipe.
+ if (input_channels != output_channels && frames_read > 0) {
+ int16_t *data = (int16_t*)buff;
+ if (output_channels == 2 && input_channels == 1) {
+ // Offset into the output stream data in samples.
+ ssize_t output_stream_offset = 0;
+ for (ssize_t input_stream_frame = 0; input_stream_frame < frames_read;
+ input_stream_frame++, output_stream_offset += 2) {
+ // Average the content from both channels.
+ data[input_stream_frame] = ((int32_t)data[output_stream_offset] +
+ (int32_t)data[output_stream_offset + 1]) / 2;
+ }
+ } else if (output_channels == 1 && input_channels == 2) {
+ // Offset into the input stream data in samples.
+ ssize_t input_stream_offset = (frames_read - 1) * 2;
+ for (ssize_t output_stream_frame = frames_read - 1; output_stream_frame >= 0;
+ output_stream_frame--, input_stream_offset -= 2) {
+ const short sample = data[output_stream_frame];
+ data[input_stream_offset] = sample;
+ data[input_stream_offset + 1] = sample;
+ }
+ }
+ }
+#endif // ENABLE_CHANNEL_CONVERSION
+
+#if ENABLE_RESAMPLING
+ if (resampler_ratio != 1.0f) {
+ SUBMIX_ALOGV("in_read(): resampling %zd frames", frames_read);
+ const int16_t * const data = (int16_t*)buff;
+ int16_t * const resampled_buffer = (int16_t*)saved_buff;
+ // Resample with *no* filtering - if the data from the ouptut stream was really
+ // sampled at a different rate this will result in very nasty aliasing.
+ const float output_stream_frames = (float)frames_read;
+ size_t input_stream_frame = 0;
+ for (float output_stream_frame = 0.0f;
+ output_stream_frame < output_stream_frames &&
+ input_stream_frame < remaining_frames;
+ output_stream_frame += resampler_ratio, input_stream_frame++) {
+ resampled_buffer[input_stream_frame] = data[(size_t)output_stream_frame];
+ }
+ ALOG_ASSERT(input_stream_frame <= (ssize_t)resampler_buffer_size_frames);
+ SUBMIX_ALOGV("in_read(): resampler produced %zd frames", input_stream_frame);
+ frames_read = input_stream_frame;
+ buff = saved_buff;
+ }
+#endif // ENABLE_RESAMPLING
+
+ if (frames_read > 0) {
+#if LOG_STREAMS_TO_FILES
+ if (in->log_fd >= 0) write(in->log_fd, buff, frames_read * frame_size);
+#endif // LOG_STREAMS_TO_FILES
+
+ remaining_frames -= frames_read;
+ buff += frames_read * frame_size;
+ SUBMIX_ALOGV(" in_read (att=%d) got %zd frames, remaining=%zu",
+ attempts, frames_read, remaining_frames);
+ } else {
+ attempts++;
+ SUBMIX_ALOGE(" in_read read returned %zd", frames_read);
+ usleep(READ_ATTEMPT_SLEEP_MS * 1000);
+ }
+ }
+ // done using the source
+ pthread_mutex_lock(&rsxadev->lock);
+ source.clear();
+ pthread_mutex_unlock(&rsxadev->lock);
+ }
+
+ if (remaining_frames > 0) {
+ const size_t remaining_bytes = remaining_frames * frame_size;
+ SUBMIX_ALOGV(" clearing remaining_frames = %zu", remaining_frames);
+ memset(((char*)buffer)+ bytes - remaining_bytes, 0, remaining_bytes);
+ }
+
+ // compute how much we need to sleep after reading the data by comparing the wall clock with
+ // the projected time at which we should return.
+ struct timespec time_after_read;// wall clock after reading from the pipe
+ struct timespec record_duration;// observed record duration
+ int rc = clock_gettime(CLOCK_MONOTONIC, &time_after_read);
+ const uint32_t sample_rate = in_get_sample_rate(&stream->common);
+ if (rc == 0) {
+ // for how long have we been recording?
+ record_duration.tv_sec = time_after_read.tv_sec - in->record_start_time.tv_sec;
+ record_duration.tv_nsec = time_after_read.tv_nsec - in->record_start_time.tv_nsec;
+ if (record_duration.tv_nsec < 0) {
+ record_duration.tv_sec--;
+ record_duration.tv_nsec += 1000000000;
+ }
+
+ // read_counter_frames contains the number of frames that have been read since the
+ // beginning of recording (including this call): it's converted to usec and compared to
+ // how long we've been recording for, which gives us how long we must wait to sync the
+ // projected recording time, and the observed recording time.
+ long projected_vs_observed_offset_us =
+ ((int64_t)(in->read_counter_frames
+ - (record_duration.tv_sec*sample_rate)))
+ * 1000000 / sample_rate
+ - (record_duration.tv_nsec / 1000);
+
+ SUBMIX_ALOGV(" record duration %5lds %3ldms, will wait: %7ldus",
+ record_duration.tv_sec, record_duration.tv_nsec/1000000,
+ projected_vs_observed_offset_us);
+ if (projected_vs_observed_offset_us > 0) {
+ usleep(projected_vs_observed_offset_us);
+ }
+ }
+
+ SUBMIX_ALOGV("in_read returns %zu", bytes);
+ return bytes;
+
+}
+
+static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
+{
+ (void)stream;
+ return 0;
+}
+
+static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ (void)stream;
+ (void)effect;
+ return 0;
+}
+
+static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ (void)stream;
+ (void)effect;
+ return 0;
+}
+
+static int adev_open_output_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ audio_output_flags_t flags,
+ struct audio_config *config,
+ struct audio_stream_out **stream_out,
+ const char *address)
+{
+ struct submix_audio_device * const rsxadev = audio_hw_device_get_submix_audio_device(dev);
+ ALOGD("adev_open_output_stream(address=%s)", address);
+ struct submix_stream_out *out;
+ bool force_pipe_creation = false;
+ (void)handle;
+ (void)devices;
+ (void)flags;
+
+ *stream_out = NULL;
+
+ // Make sure it's possible to open the device given the current audio config.
+ submix_sanitize_config(config, false);
+
+ int route_idx = -1;
+
+ pthread_mutex_lock(&rsxadev->lock);
+
+ status_t res = submix_get_route_idx_for_address_l(rsxadev, address, &route_idx);
+ if (res != OK) {
+ ALOGE("Error %d looking for address=%s in adev_open_output_stream", res, address);
+ pthread_mutex_unlock(&rsxadev->lock);
+ return res;
+ }
+
+ if (!submix_open_validate_l(rsxadev, route_idx, config, false)) {
+ ALOGE("adev_open_output_stream(): Unable to open output stream for address %s", address);
+ pthread_mutex_unlock(&rsxadev->lock);
+ return -EINVAL;
+ }
+
+ out = (struct submix_stream_out *)calloc(1, sizeof(struct submix_stream_out));
+ if (!out) {
+ pthread_mutex_unlock(&rsxadev->lock);
+ return -ENOMEM;
+ }
+
+ // Initialize the function pointer tables (v-tables).
+ out->stream.common.get_sample_rate = out_get_sample_rate;
+ out->stream.common.set_sample_rate = out_set_sample_rate;
+ out->stream.common.get_buffer_size = out_get_buffer_size;
+ out->stream.common.get_channels = out_get_channels;
+ out->stream.common.get_format = out_get_format;
+ out->stream.common.set_format = out_set_format;
+ out->stream.common.standby = out_standby;
+ out->stream.common.dump = out_dump;
+ out->stream.common.set_parameters = out_set_parameters;
+ out->stream.common.get_parameters = out_get_parameters;
+ out->stream.common.add_audio_effect = out_add_audio_effect;
+ out->stream.common.remove_audio_effect = out_remove_audio_effect;
+ out->stream.get_latency = out_get_latency;
+ out->stream.set_volume = out_set_volume;
+ out->stream.write = out_write;
+ out->stream.get_render_position = out_get_render_position;
+ out->stream.get_next_write_timestamp = out_get_next_write_timestamp;
+ out->stream.get_presentation_position = out_get_presentation_position;
+
+#if ENABLE_RESAMPLING
+ // Recreate the pipe with the correct sample rate so that MonoPipe.write() rate limits
+ // writes correctly.
+ force_pipe_creation = rsxadev->routes[route_idx].config.common.sample_rate
+ != config->sample_rate;
+#endif // ENABLE_RESAMPLING
+
+ // If the sink has been shutdown or pipe recreation is forced (see above), delete the pipe so
+ // that it's recreated.
+ if ((rsxadev->routes[route_idx].rsxSink != NULL
+ && rsxadev->routes[route_idx].rsxSink->isShutdown()) || force_pipe_creation) {
+ submix_audio_device_release_pipe_l(rsxadev, route_idx);
+ }
+
+ // Store a pointer to the device from the output stream.
+ out->dev = rsxadev;
+ // Initialize the pipe.
+ ALOGV("adev_open_output_stream(): about to create pipe at index %d", route_idx);
+ submix_audio_device_create_pipe_l(rsxadev, config, DEFAULT_PIPE_SIZE_IN_FRAMES,
+ DEFAULT_PIPE_PERIOD_COUNT, NULL, out, address, route_idx);
+#if LOG_STREAMS_TO_FILES
+ out->log_fd = open(LOG_STREAM_OUT_FILENAME, O_CREAT | O_TRUNC | O_WRONLY,
+ LOG_STREAM_FILE_PERMISSIONS);
+ ALOGE_IF(out->log_fd < 0, "adev_open_output_stream(): log file open failed %s",
+ strerror(errno));
+ ALOGV("adev_open_output_stream(): log_fd = %d", out->log_fd);
+#endif // LOG_STREAMS_TO_FILES
+ // Return the output stream.
+ *stream_out = &out->stream;
+
+ pthread_mutex_unlock(&rsxadev->lock);
+ return 0;
+}
+
+static void adev_close_output_stream(struct audio_hw_device *dev,
+ struct audio_stream_out *stream)
+{
+ struct submix_audio_device * rsxadev = audio_hw_device_get_submix_audio_device(
+ const_cast<struct audio_hw_device*>(dev));
+ struct submix_stream_out * const out = audio_stream_out_get_submix_stream_out(stream);
+
+ pthread_mutex_lock(&rsxadev->lock);
+ ALOGD("adev_close_output_stream() addr = %s", rsxadev->routes[out->route_handle].address);
+ submix_audio_device_destroy_pipe_l(audio_hw_device_get_submix_audio_device(dev), NULL, out);
+#if LOG_STREAMS_TO_FILES
+ if (out->log_fd >= 0) close(out->log_fd);
+#endif // LOG_STREAMS_TO_FILES
+
+ pthread_mutex_unlock(&rsxadev->lock);
+ free(out);
+}
+
+static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
+{
+ (void)dev;
+ (void)kvpairs;
+ return -ENOSYS;
+}
+
+static char * adev_get_parameters(const struct audio_hw_device *dev,
+ const char *keys)
+{
+ (void)dev;
+ (void)keys;
+ return strdup("");;
+}
+
+static int adev_init_check(const struct audio_hw_device *dev)
+{
+ ALOGI("adev_init_check()");
+ (void)dev;
+ return 0;
+}
+
+static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
+{
+ (void)dev;
+ (void)volume;
+ return -ENOSYS;
+}
+
+static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
+{
+ (void)dev;
+ (void)volume;
+ return -ENOSYS;
+}
+
+static int adev_get_master_volume(struct audio_hw_device *dev, float *volume)
+{
+ (void)dev;
+ (void)volume;
+ return -ENOSYS;
+}
+
+static int adev_set_master_mute(struct audio_hw_device *dev, bool muted)
+{
+ (void)dev;
+ (void)muted;
+ return -ENOSYS;
+}
+
+static int adev_get_master_mute(struct audio_hw_device *dev, bool *muted)
+{
+ (void)dev;
+ (void)muted;
+ return -ENOSYS;
+}
+
+static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
+{
+ (void)dev;
+ (void)mode;
+ return 0;
+}
+
+static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
+{
+ (void)dev;
+ (void)state;
+ return -ENOSYS;
+}
+
+static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
+{
+ (void)dev;
+ (void)state;
+ return -ENOSYS;
+}
+
+static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
+ const struct audio_config *config)
+{
+ if (audio_is_linear_pcm(config->format)) {
+ size_t max_buffer_period_size_frames = 0;
+ struct submix_audio_device * rsxadev = audio_hw_device_get_submix_audio_device(
+ const_cast<struct audio_hw_device*>(dev));
+ // look for the largest buffer period size
+ for (int i = 0 ; i < MAX_ROUTES ; i++) {
+ if (rsxadev->routes[i].config.buffer_period_size_frames > max_buffer_period_size_frames)
+ {
+ max_buffer_period_size_frames = rsxadev->routes[i].config.buffer_period_size_frames;
+ }
+ }
+ const size_t frame_size_in_bytes = audio_channel_count_from_in_mask(config->channel_mask) *
+ audio_bytes_per_sample(config->format);
+ const size_t buffer_size = max_buffer_period_size_frames * frame_size_in_bytes;
+ SUBMIX_ALOGV("adev_get_input_buffer_size() returns %zu bytes, %zu frames",
+ buffer_size, buffer_period_size_frames);
+ return buffer_size;
+ }
+ return 0;
+}
+
+static int adev_open_input_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ struct audio_config *config,
+ struct audio_stream_in **stream_in,
+ audio_input_flags_t flags __unused,
+ const char *address,
+ audio_source_t source __unused)
+{
+ struct submix_audio_device *rsxadev = audio_hw_device_get_submix_audio_device(dev);
+ struct submix_stream_in *in;
+ ALOGD("adev_open_input_stream(addr=%s)", address);
+ (void)handle;
+ (void)devices;
+
+ *stream_in = NULL;
+
+ // Do we already have a route for this address
+ int route_idx = -1;
+
+ pthread_mutex_lock(&rsxadev->lock);
+
+ status_t res = submix_get_route_idx_for_address_l(rsxadev, address, &route_idx);
+ if (res != OK) {
+ ALOGE("Error %d looking for address=%s in adev_open_output_stream", res, address);
+ pthread_mutex_unlock(&rsxadev->lock);
+ return res;
+ }
+
+ // Make sure it's possible to open the device given the current audio config.
+ submix_sanitize_config(config, true);
+ if (!submix_open_validate_l(rsxadev, route_idx, config, true)) {
+ ALOGE("adev_open_input_stream(): Unable to open input stream.");
+ pthread_mutex_unlock(&rsxadev->lock);
+ return -EINVAL;
+ }
+
+#if ENABLE_LEGACY_INPUT_OPEN
+ in = rsxadev->routes[route_idx].input;
+ if (in) {
+ in->ref_count++;
+ sp<MonoPipe> sink = rsxadev->routes[route_idx].rsxSink;
+ ALOG_ASSERT(sink != NULL);
+ // If the sink has been shutdown, delete the pipe.
+ if (sink != NULL) {
+ if (sink->isShutdown()) {
+ ALOGD(" Non-NULL shut down sink when opening input stream, releasing, refcount=%d",
+ in->ref_count);
+ submix_audio_device_release_pipe_l(rsxadev, in->route_handle);
+ } else {
+ ALOGD(" Non-NULL sink when opening input stream, refcount=%d", in->ref_count);
+ }
+ } else {
+ ALOGE("NULL sink when opening input stream, refcount=%d", in->ref_count);
+ }
+ }
+#else
+ in = NULL;
+#endif // ENABLE_LEGACY_INPUT_OPEN
+
+ if (!in) {
+ in = (struct submix_stream_in *)calloc(1, sizeof(struct submix_stream_in));
+ if (!in) return -ENOMEM;
+ in->ref_count = 1;
+
+ // Initialize the function pointer tables (v-tables).
+ in->stream.common.get_sample_rate = in_get_sample_rate;
+ in->stream.common.set_sample_rate = in_set_sample_rate;
+ in->stream.common.get_buffer_size = in_get_buffer_size;
+ in->stream.common.get_channels = in_get_channels;
+ in->stream.common.get_format = in_get_format;
+ in->stream.common.set_format = in_set_format;
+ in->stream.common.standby = in_standby;
+ in->stream.common.dump = in_dump;
+ in->stream.common.set_parameters = in_set_parameters;
+ in->stream.common.get_parameters = in_get_parameters;
+ in->stream.common.add_audio_effect = in_add_audio_effect;
+ in->stream.common.remove_audio_effect = in_remove_audio_effect;
+ in->stream.set_gain = in_set_gain;
+ in->stream.read = in_read;
+ in->stream.get_input_frames_lost = in_get_input_frames_lost;
+
+ in->dev = rsxadev;
+#if LOG_STREAMS_TO_FILES
+ in->log_fd = -1;
+#endif
+ }
+
+ // Initialize the input stream.
+ in->read_counter_frames = 0;
+ in->input_standby = true;
+ if (rsxadev->routes[route_idx].output != NULL) {
+ in->output_standby_rec_thr = rsxadev->routes[route_idx].output->output_standby;
+ } else {
+ in->output_standby_rec_thr = true;
+ }
+
+ in->read_error_count = 0;
+ // Initialize the pipe.
+ ALOGV("adev_open_input_stream(): about to create pipe");
+ submix_audio_device_create_pipe_l(rsxadev, config, DEFAULT_PIPE_SIZE_IN_FRAMES,
+ DEFAULT_PIPE_PERIOD_COUNT, in, NULL, address, route_idx);
+#if LOG_STREAMS_TO_FILES
+ if (in->log_fd >= 0) close(in->log_fd);
+ in->log_fd = open(LOG_STREAM_IN_FILENAME, O_CREAT | O_TRUNC | O_WRONLY,
+ LOG_STREAM_FILE_PERMISSIONS);
+ ALOGE_IF(in->log_fd < 0, "adev_open_input_stream(): log file open failed %s",
+ strerror(errno));
+ ALOGV("adev_open_input_stream(): log_fd = %d", in->log_fd);
+#endif // LOG_STREAMS_TO_FILES
+ // Return the input stream.
+ *stream_in = &in->stream;
+
+ pthread_mutex_unlock(&rsxadev->lock);
+ return 0;
+}
+
+static void adev_close_input_stream(struct audio_hw_device *dev,
+ struct audio_stream_in *stream)
+{
+ struct submix_audio_device * const rsxadev = audio_hw_device_get_submix_audio_device(dev);
+
+ struct submix_stream_in * const in = audio_stream_in_get_submix_stream_in(stream);
+ ALOGD("adev_close_input_stream()");
+ pthread_mutex_lock(&rsxadev->lock);
+ submix_audio_device_destroy_pipe_l(rsxadev, in, NULL);
+#if LOG_STREAMS_TO_FILES
+ if (in->log_fd >= 0) close(in->log_fd);
+#endif // LOG_STREAMS_TO_FILES
+#if ENABLE_LEGACY_INPUT_OPEN
+ if (in->ref_count == 0) free(in);
+#else
+ free(in);
+#endif // ENABLE_LEGACY_INPUT_OPEN
+
+ pthread_mutex_unlock(&rsxadev->lock);
+}
+
+static int adev_dump(const audio_hw_device_t *device, int fd)
+{
+ const struct submix_audio_device * rsxadev = //audio_hw_device_get_submix_audio_device(device);
+ reinterpret_cast<const struct submix_audio_device *>(
+ reinterpret_cast<const uint8_t *>(device) -
+ offsetof(struct submix_audio_device, device));
+ char msg[100];
+ int n = sprintf(msg, "\nReroute submix audio module:\n");
+ write(fd, &msg, n);
+ for (int i=0 ; i < MAX_ROUTES ; i++) {
+ n = sprintf(msg, " route[%d] rate in=%d out=%d, addr=[%s]\n", i,
+ rsxadev->routes[i].config.input_sample_rate,
+ rsxadev->routes[i].config.output_sample_rate,
+ rsxadev->routes[i].address);
+ write(fd, &msg, n);
+ }
+ return 0;
+}
+
+static int adev_close(hw_device_t *device)
+{
+ ALOGI("adev_close()");
+ free(device);
+ return 0;
+}
+
+static int adev_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ ALOGI("adev_open(name=%s)", name);
+ struct submix_audio_device *rsxadev;
+
+ if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
+ return -EINVAL;
+
+ rsxadev = (submix_audio_device*) calloc(1, sizeof(struct submix_audio_device));
+ if (!rsxadev)
+ return -ENOMEM;
+
+ rsxadev->device.common.tag = HARDWARE_DEVICE_TAG;
+ rsxadev->device.common.version = AUDIO_DEVICE_API_VERSION_2_0;
+ rsxadev->device.common.module = (struct hw_module_t *) module;
+ rsxadev->device.common.close = adev_close;
+
+ rsxadev->device.init_check = adev_init_check;
+ rsxadev->device.set_voice_volume = adev_set_voice_volume;
+ rsxadev->device.set_master_volume = adev_set_master_volume;
+ rsxadev->device.get_master_volume = adev_get_master_volume;
+ rsxadev->device.set_master_mute = adev_set_master_mute;
+ rsxadev->device.get_master_mute = adev_get_master_mute;
+ rsxadev->device.set_mode = adev_set_mode;
+ rsxadev->device.set_mic_mute = adev_set_mic_mute;
+ rsxadev->device.get_mic_mute = adev_get_mic_mute;
+ rsxadev->device.set_parameters = adev_set_parameters;
+ rsxadev->device.get_parameters = adev_get_parameters;
+ rsxadev->device.get_input_buffer_size = adev_get_input_buffer_size;
+ rsxadev->device.open_output_stream = adev_open_output_stream;
+ rsxadev->device.close_output_stream = adev_close_output_stream;
+ rsxadev->device.open_input_stream = adev_open_input_stream;
+ rsxadev->device.close_input_stream = adev_close_input_stream;
+ rsxadev->device.dump = adev_dump;
+
+ for (int i=0 ; i < MAX_ROUTES ; i++) {
+ memset(&rsxadev->routes[i], 0, sizeof(route_config));
+ strcpy(rsxadev->routes[i].address, "");
+ }
+
+ *device = &rsxadev->device.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t hal_module_methods = {
+ /* open */ adev_open,
+};
+
+struct audio_module HAL_MODULE_INFO_SYM = {
+ /* common */ {
+ /* tag */ HARDWARE_MODULE_TAG,
+ /* module_api_version */ AUDIO_MODULE_API_VERSION_0_1,
+ /* hal_api_version */ HARDWARE_HAL_API_VERSION,
+ /* id */ AUDIO_HARDWARE_MODULE_ID,
+ /* name */ "Wifi Display audio HAL",
+ /* author */ "The Android Open Source Project",
+ /* methods */ &hal_module_methods,
+ /* dso */ NULL,
+ /* reserved */ { 0 },
+ },
+};
+
+} //namespace android
+
+} //extern "C"
diff --git a/libhardware/modules/camera/Android.mk b/libhardware/modules/camera/Android.mk
new file mode 100644
index 0000000..ae68ed5
--- /dev/null
+++ b/libhardware/modules/camera/Android.mk
@@ -0,0 +1,45 @@
+# Copyright (C) 2012 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := camera.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+
+LOCAL_C_INCLUDES += \
+ system/core/include \
+ system/media/camera/include \
+
+LOCAL_SRC_FILES := \
+ CameraHAL.cpp \
+ Camera.cpp \
+ ExampleCamera.cpp \
+ Metadata.cpp \
+ Stream.cpp \
+ VendorTags.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ libcamera_metadata \
+ libcutils \
+ liblog \
+ libsync \
+ libutils \
+
+LOCAL_CFLAGS += -Wall -Wextra -fvisibility=hidden
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libhardware/modules/camera/Camera.cpp b/libhardware/modules/camera/Camera.cpp
new file mode 100644
index 0000000..de3ae78
--- /dev/null
+++ b/libhardware/modules/camera/Camera.cpp
@@ -0,0 +1,594 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstdlib>
+#include <stdio.h>
+#include <hardware/camera3.h>
+#include <sync/sync.h>
+#include <system/camera_metadata.h>
+#include <system/graphics.h>
+#include <utils/Mutex.h>
+#include "CameraHAL.h"
+#include "Metadata.h"
+#include "Stream.h"
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Camera"
+#include <cutils/log.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "Camera.h"
+
+#define CAMERA_SYNC_TIMEOUT 5000 // in msecs
+
+namespace default_camera_hal {
+
+extern "C" {
+// Shim passed to the framework to close an opened device.
+static int close_device(hw_device_t* dev)
+{
+ camera3_device_t* cam_dev = reinterpret_cast<camera3_device_t*>(dev);
+ Camera* cam = static_cast<Camera*>(cam_dev->priv);
+ return cam->close();
+}
+} // extern "C"
+
+Camera::Camera(int id)
+ : mId(id),
+ mStaticInfo(NULL),
+ mBusy(false),
+ mCallbackOps(NULL),
+ mStreams(NULL),
+ mNumStreams(0),
+ mSettings(NULL)
+{
+ memset(&mTemplates, 0, sizeof(mTemplates));
+ memset(&mDevice, 0, sizeof(mDevice));
+ mDevice.common.tag = HARDWARE_DEVICE_TAG;
+ mDevice.common.version = CAMERA_DEVICE_API_VERSION_3_0;
+ mDevice.common.close = close_device;
+ mDevice.ops = const_cast<camera3_device_ops_t*>(&sOps);
+ mDevice.priv = this;
+}
+
+Camera::~Camera()
+{
+ if (mStaticInfo != NULL) {
+ free_camera_metadata(mStaticInfo);
+ }
+}
+
+int Camera::open(const hw_module_t *module, hw_device_t **device)
+{
+ ALOGI("%s:%d: Opening camera device", __func__, mId);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (mBusy) {
+ ALOGE("%s:%d: Error! Camera device already opened", __func__, mId);
+ return -EBUSY;
+ }
+
+ // TODO: open camera dev nodes, etc
+ mBusy = true;
+ mDevice.common.module = const_cast<hw_module_t*>(module);
+ *device = &mDevice.common;
+ return 0;
+}
+
+int Camera::getInfo(struct camera_info *info)
+{
+ android::Mutex::Autolock al(mStaticInfoLock);
+
+ info->facing = CAMERA_FACING_FRONT;
+ info->orientation = 0;
+ info->device_version = mDevice.common.version;
+ if (mStaticInfo == NULL) {
+ mStaticInfo = initStaticInfo();
+ }
+ info->static_camera_characteristics = mStaticInfo;
+ return 0;
+}
+
+int Camera::close()
+{
+ ALOGI("%s:%d: Closing camera device", __func__, mId);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (!mBusy) {
+ ALOGE("%s:%d: Error! Camera device not open", __func__, mId);
+ return -EINVAL;
+ }
+
+ // TODO: close camera dev nodes, etc
+ mBusy = false;
+ return 0;
+}
+
+int Camera::initialize(const camera3_callback_ops_t *callback_ops)
+{
+ int res;
+
+ ALOGV("%s:%d: callback_ops=%p", __func__, mId, callback_ops);
+ mCallbackOps = callback_ops;
+ // per-device specific initialization
+ res = initDevice();
+ if (res != 0) {
+ ALOGE("%s:%d: Failed to initialize device!", __func__, mId);
+ return res;
+ }
+ return 0;
+}
+
+int Camera::configureStreams(camera3_stream_configuration_t *stream_config)
+{
+ camera3_stream_t *astream;
+ Stream **newStreams = NULL;
+
+ ALOGV("%s:%d: stream_config=%p", __func__, mId, stream_config);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (stream_config == NULL) {
+ ALOGE("%s:%d: NULL stream configuration array", __func__, mId);
+ return -EINVAL;
+ }
+ if (stream_config->num_streams == 0) {
+ ALOGE("%s:%d: Empty stream configuration array", __func__, mId);
+ return -EINVAL;
+ }
+
+ // Create new stream array
+ newStreams = new Stream*[stream_config->num_streams];
+ ALOGV("%s:%d: Number of Streams: %d", __func__, mId,
+ stream_config->num_streams);
+
+ // Mark all current streams unused for now
+ for (int i = 0; i < mNumStreams; i++)
+ mStreams[i]->mReuse = false;
+ // Fill new stream array with reused streams and new streams
+ for (unsigned int i = 0; i < stream_config->num_streams; i++) {
+ astream = stream_config->streams[i];
+ if (astream->max_buffers > 0) {
+ ALOGV("%s:%d: Reusing stream %d", __func__, mId, i);
+ newStreams[i] = reuseStream(astream);
+ } else {
+ ALOGV("%s:%d: Creating new stream %d", __func__, mId, i);
+ newStreams[i] = new Stream(mId, astream);
+ }
+
+ if (newStreams[i] == NULL) {
+ ALOGE("%s:%d: Error processing stream %d", __func__, mId, i);
+ goto err_out;
+ }
+ astream->priv = newStreams[i];
+ }
+
+ // Verify the set of streams in aggregate
+ if (!isValidStreamSet(newStreams, stream_config->num_streams)) {
+ ALOGE("%s:%d: Invalid stream set", __func__, mId);
+ goto err_out;
+ }
+
+ // Set up all streams (calculate usage/max_buffers for each)
+ setupStreams(newStreams, stream_config->num_streams);
+
+ // Destroy all old streams and replace stream array with new one
+ destroyStreams(mStreams, mNumStreams);
+ mStreams = newStreams;
+ mNumStreams = stream_config->num_streams;
+
+ // Clear out last seen settings metadata
+ setSettings(NULL);
+ return 0;
+
+err_out:
+ // Clean up temporary streams, preserve existing mStreams/mNumStreams
+ destroyStreams(newStreams, stream_config->num_streams);
+ return -EINVAL;
+}
+
+void Camera::destroyStreams(Stream **streams, int count)
+{
+ if (streams == NULL)
+ return;
+ for (int i = 0; i < count; i++) {
+ // Only destroy streams that weren't reused
+ if (streams[i] != NULL && !streams[i]->mReuse)
+ delete streams[i];
+ }
+ delete [] streams;
+}
+
+Stream *Camera::reuseStream(camera3_stream_t *astream)
+{
+ Stream *priv = reinterpret_cast<Stream*>(astream->priv);
+ // Verify the re-used stream's parameters match
+ if (!priv->isValidReuseStream(mId, astream)) {
+ ALOGE("%s:%d: Mismatched parameter in reused stream", __func__, mId);
+ return NULL;
+ }
+ // Mark stream to be reused
+ priv->mReuse = true;
+ return priv;
+}
+
+bool Camera::isValidStreamSet(Stream **streams, int count)
+{
+ int inputs = 0;
+ int outputs = 0;
+
+ if (streams == NULL) {
+ ALOGE("%s:%d: NULL stream configuration streams", __func__, mId);
+ return false;
+ }
+ if (count == 0) {
+ ALOGE("%s:%d: Zero count stream configuration streams", __func__, mId);
+ return false;
+ }
+ // Validate there is at most one input stream and at least one output stream
+ for (int i = 0; i < count; i++) {
+ // A stream may be both input and output (bidirectional)
+ if (streams[i]->isInputType())
+ inputs++;
+ if (streams[i]->isOutputType())
+ outputs++;
+ }
+ ALOGV("%s:%d: Configuring %d output streams and %d input streams",
+ __func__, mId, outputs, inputs);
+ if (outputs < 1) {
+ ALOGE("%s:%d: Stream config must have >= 1 output", __func__, mId);
+ return false;
+ }
+ if (inputs > 1) {
+ ALOGE("%s:%d: Stream config must have <= 1 input", __func__, mId);
+ return false;
+ }
+ // TODO: check for correct number of Bayer/YUV/JPEG/Encoder streams
+ return true;
+}
+
+void Camera::setupStreams(Stream **streams, int count)
+{
+ /*
+ * This is where the HAL has to decide internally how to handle all of the
+ * streams, and then produce usage and max_buffer values for each stream.
+ * Note, the stream array has been checked before this point for ALL invalid
+ * conditions, so it must find a successful configuration for this stream
+ * array. The HAL may not return an error from this point.
+ *
+ * In this demo HAL, we just set all streams to be the same dummy values;
+ * real implementations will want to avoid USAGE_SW_{READ|WRITE}_OFTEN.
+ */
+ for (int i = 0; i < count; i++) {
+ uint32_t usage = 0;
+
+ if (streams[i]->isOutputType())
+ usage |= GRALLOC_USAGE_SW_WRITE_OFTEN |
+ GRALLOC_USAGE_HW_CAMERA_WRITE;
+ if (streams[i]->isInputType())
+ usage |= GRALLOC_USAGE_SW_READ_OFTEN |
+ GRALLOC_USAGE_HW_CAMERA_READ;
+
+ streams[i]->setUsage(usage);
+ streams[i]->setMaxBuffers(1);
+ }
+}
+
+int Camera::registerStreamBuffers(const camera3_stream_buffer_set_t *buf_set)
+{
+ ALOGV("%s:%d: buffer_set=%p", __func__, mId, buf_set);
+ if (buf_set == NULL) {
+ ALOGE("%s:%d: NULL buffer set", __func__, mId);
+ return -EINVAL;
+ }
+ if (buf_set->stream == NULL) {
+ ALOGE("%s:%d: NULL stream handle", __func__, mId);
+ return -EINVAL;
+ }
+ Stream *stream = reinterpret_cast<Stream*>(buf_set->stream->priv);
+ return stream->registerBuffers(buf_set);
+}
+
+bool Camera::isValidTemplateType(int type)
+{
+ return type < 1 || type >= CAMERA3_TEMPLATE_COUNT;
+}
+
+const camera_metadata_t* Camera::constructDefaultRequestSettings(int type)
+{
+ ALOGV("%s:%d: type=%d", __func__, mId, type);
+
+ if (!isValidTemplateType(type)) {
+ ALOGE("%s:%d: Invalid template request type: %d", __func__, mId, type);
+ return NULL;
+ }
+ return mTemplates[type];
+}
+
+int Camera::processCaptureRequest(camera3_capture_request_t *request)
+{
+ camera3_capture_result result;
+
+ ALOGV("%s:%d: request=%p", __func__, mId, request);
+ ATRACE_CALL();
+
+ if (request == NULL) {
+ ALOGE("%s:%d: NULL request recieved", __func__, mId);
+ return -EINVAL;
+ }
+
+ ALOGV("%s:%d: Request Frame:%d Settings:%p", __func__, mId,
+ request->frame_number, request->settings);
+
+ // NULL indicates use last settings
+ if (request->settings == NULL) {
+ if (mSettings == NULL) {
+ ALOGE("%s:%d: NULL settings without previous set Frame:%d Req:%p",
+ __func__, mId, request->frame_number, request);
+ return -EINVAL;
+ }
+ } else {
+ setSettings(request->settings);
+ }
+
+ if (request->input_buffer != NULL) {
+ ALOGV("%s:%d: Reprocessing input buffer %p", __func__, mId,
+ request->input_buffer);
+
+ if (!isValidReprocessSettings(request->settings)) {
+ ALOGE("%s:%d: Invalid settings for reprocess request: %p",
+ __func__, mId, request->settings);
+ return -EINVAL;
+ }
+ } else {
+ ALOGV("%s:%d: Capturing new frame.", __func__, mId);
+
+ if (!isValidCaptureSettings(request->settings)) {
+ ALOGE("%s:%d: Invalid settings for capture request: %p",
+ __func__, mId, request->settings);
+ return -EINVAL;
+ }
+ }
+
+ if (request->num_output_buffers <= 0) {
+ ALOGE("%s:%d: Invalid number of output buffers: %d", __func__, mId,
+ request->num_output_buffers);
+ return -EINVAL;
+ }
+ result.num_output_buffers = request->num_output_buffers;
+ result.output_buffers = new camera3_stream_buffer_t[result.num_output_buffers];
+ for (unsigned int i = 0; i < request->num_output_buffers; i++) {
+ int res = processCaptureBuffer(&request->output_buffers[i],
+ const_cast<camera3_stream_buffer_t*>(&result.output_buffers[i]));
+ if (res)
+ goto err_out;
+ }
+
+ result.frame_number = request->frame_number;
+ // TODO: return actual captured/reprocessed settings
+ result.result = request->settings;
+ // TODO: asynchronously return results
+ notifyShutter(request->frame_number, 0);
+ mCallbackOps->process_capture_result(mCallbackOps, &result);
+
+ return 0;
+
+err_out:
+ delete [] result.output_buffers;
+ // TODO: this should probably be a total device failure; transient for now
+ return -EINVAL;
+}
+
+void Camera::setSettings(const camera_metadata_t *new_settings)
+{
+ if (mSettings != NULL) {
+ free_camera_metadata(mSettings);
+ mSettings = NULL;
+ }
+
+ if (new_settings != NULL)
+ mSettings = clone_camera_metadata(new_settings);
+}
+
+bool Camera::isValidReprocessSettings(const camera_metadata_t* /*settings*/)
+{
+ // TODO: reject settings that cannot be reprocessed
+ // input buffers unimplemented, use this to reject reprocessing requests
+ ALOGE("%s:%d: Input buffer reprocessing not implemented", __func__, mId);
+ return false;
+}
+
+int Camera::processCaptureBuffer(const camera3_stream_buffer_t *in,
+ camera3_stream_buffer_t *out)
+{
+ if (in->acquire_fence != -1) {
+ int res = sync_wait(in->acquire_fence, CAMERA_SYNC_TIMEOUT);
+ if (res == -ETIME) {
+ ALOGE("%s:%d: Timeout waiting on buffer acquire fence",
+ __func__, mId);
+ return res;
+ } else if (res) {
+ ALOGE("%s:%d: Error waiting on buffer acquire fence: %s(%d)",
+ __func__, mId, strerror(-res), res);
+ return res;
+ }
+ }
+
+ out->stream = in->stream;
+ out->buffer = in->buffer;
+ out->status = CAMERA3_BUFFER_STATUS_OK;
+ // TODO: use driver-backed release fences
+ out->acquire_fence = -1;
+ out->release_fence = -1;
+
+ // TODO: lock and software-paint buffer
+ return 0;
+}
+
+void Camera::notifyShutter(uint32_t frame_number, uint64_t timestamp)
+{
+ int res;
+ struct timespec ts;
+
+ // If timestamp is 0, get timestamp from right now instead
+ if (timestamp == 0) {
+ ALOGW("%s:%d: No timestamp provided, using CLOCK_BOOTTIME",
+ __func__, mId);
+ res = clock_gettime(CLOCK_BOOTTIME, &ts);
+ if (res == 0) {
+ timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec;
+ } else {
+ ALOGE("%s:%d: No timestamp and failed to get CLOCK_BOOTTIME %s(%d)",
+ __func__, mId, strerror(errno), errno);
+ }
+ }
+ camera3_notify_msg_t m;
+ memset(&m, 0, sizeof(m));
+ m.type = CAMERA3_MSG_SHUTTER;
+ m.message.shutter.frame_number = frame_number;
+ m.message.shutter.timestamp = timestamp;
+ mCallbackOps->notify(mCallbackOps, &m);
+}
+
+void Camera::dump(int fd)
+{
+ ALOGV("%s:%d: Dumping to fd %d", __func__, mId, fd);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ dprintf(fd, "Camera ID: %d (Busy: %d)\n", mId, mBusy);
+
+ // TODO: dump all settings
+ dprintf(fd, "Most Recent Settings: (%p)\n", mSettings);
+
+ dprintf(fd, "Number of streams: %d\n", mNumStreams);
+ for (int i = 0; i < mNumStreams; i++) {
+ dprintf(fd, "Stream %d/%d:\n", i, mNumStreams);
+ mStreams[i]->dump(fd);
+ }
+}
+
+const char* Camera::templateToString(int type)
+{
+ switch (type) {
+ case CAMERA3_TEMPLATE_PREVIEW:
+ return "CAMERA3_TEMPLATE_PREVIEW";
+ case CAMERA3_TEMPLATE_STILL_CAPTURE:
+ return "CAMERA3_TEMPLATE_STILL_CAPTURE";
+ case CAMERA3_TEMPLATE_VIDEO_RECORD:
+ return "CAMERA3_TEMPLATE_VIDEO_RECORD";
+ case CAMERA3_TEMPLATE_VIDEO_SNAPSHOT:
+ return "CAMERA3_TEMPLATE_VIDEO_SNAPSHOT";
+ case CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG:
+ return "CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG";
+ }
+ // TODO: support vendor templates
+ return "Invalid template type!";
+}
+
+int Camera::setTemplate(int type, camera_metadata_t *settings)
+{
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (!isValidTemplateType(type)) {
+ ALOGE("%s:%d: Invalid template request type: %d", __func__, mId, type);
+ return -EINVAL;
+ }
+
+ if (mTemplates[type] != NULL) {
+ ALOGE("%s:%d: Setting already constructed template type %s(%d)",
+ __func__, mId, templateToString(type), type);
+ return -EINVAL;
+ }
+
+ // Make a durable copy of the underlying metadata
+ mTemplates[type] = clone_camera_metadata(settings);
+ if (mTemplates[type] == NULL) {
+ ALOGE("%s:%d: Failed to clone metadata %p for template type %s(%d)",
+ __func__, mId, settings, templateToString(type), type);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+extern "C" {
+// Get handle to camera from device priv data
+static Camera *camdev_to_camera(const camera3_device_t *dev)
+{
+ return reinterpret_cast<Camera*>(dev->priv);
+}
+
+static int initialize(const camera3_device_t *dev,
+ const camera3_callback_ops_t *callback_ops)
+{
+ return camdev_to_camera(dev)->initialize(callback_ops);
+}
+
+static int configure_streams(const camera3_device_t *dev,
+ camera3_stream_configuration_t *stream_list)
+{
+ return camdev_to_camera(dev)->configureStreams(stream_list);
+}
+
+static int register_stream_buffers(const camera3_device_t *dev,
+ const camera3_stream_buffer_set_t *buffer_set)
+{
+ return camdev_to_camera(dev)->registerStreamBuffers(buffer_set);
+}
+
+static const camera_metadata_t *construct_default_request_settings(
+ const camera3_device_t *dev, int type)
+{
+ return camdev_to_camera(dev)->constructDefaultRequestSettings(type);
+}
+
+static int process_capture_request(const camera3_device_t *dev,
+ camera3_capture_request_t *request)
+{
+ return camdev_to_camera(dev)->processCaptureRequest(request);
+}
+
+static void dump(const camera3_device_t *dev, int fd)
+{
+ camdev_to_camera(dev)->dump(fd);
+}
+
+static int flush(const camera3_device_t*)
+{
+ ALOGE("%s: unimplemented.", __func__);
+ return -1;
+}
+
+} // extern "C"
+
+const camera3_device_ops_t Camera::sOps = {
+ .initialize = default_camera_hal::initialize,
+ .configure_streams = default_camera_hal::configure_streams,
+ .register_stream_buffers = default_camera_hal::register_stream_buffers,
+ .construct_default_request_settings
+ = default_camera_hal::construct_default_request_settings,
+ .process_capture_request = default_camera_hal::process_capture_request,
+ .get_metadata_vendor_tag_ops = NULL,
+ .dump = default_camera_hal::dump,
+ .flush = default_camera_hal::flush,
+ .reserved = {0},
+};
+
+} // namespace default_camera_hal
diff --git a/libhardware/modules/camera/Camera.h b/libhardware/modules/camera/Camera.h
new file mode 100644
index 0000000..072de35
--- /dev/null
+++ b/libhardware/modules/camera/Camera.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAMERA_H_
+#define CAMERA_H_
+
+#include <hardware/hardware.h>
+#include <hardware/camera3.h>
+#include <utils/Mutex.h>
+#include "Metadata.h"
+#include "Stream.h"
+
+namespace default_camera_hal {
+// Camera represents a physical camera on a device.
+// This is constructed when the HAL module is loaded, one per physical camera.
+// It is opened by the framework, and must be closed before it can be opened
+// again.
+// This is an abstract class, containing all logic and data shared between all
+// camera devices (front, back, etc) and common to the ISP.
+class Camera {
+ public:
+ // id is used to distinguish cameras. 0 <= id < NUM_CAMERAS.
+ // module is a handle to the HAL module, used when the device is opened.
+ explicit Camera(int id);
+ virtual ~Camera();
+
+ // Common Camera Device Operations (see <hardware/camera_common.h>)
+ int open(const hw_module_t *module, hw_device_t **device);
+ int getInfo(struct camera_info *info);
+ int close();
+
+ // Camera v3 Device Operations (see <hardware/camera3.h>)
+ int initialize(const camera3_callback_ops_t *callback_ops);
+ int configureStreams(camera3_stream_configuration_t *stream_list);
+ int registerStreamBuffers(const camera3_stream_buffer_set_t *buf_set);
+ const camera_metadata_t *constructDefaultRequestSettings(int type);
+ int processCaptureRequest(camera3_capture_request_t *request);
+ void dump(int fd);
+
+
+ protected:
+ // Initialize static camera characteristics for individual device
+ virtual camera_metadata_t *initStaticInfo() = 0;
+ // Verify settings are valid for a capture
+ virtual bool isValidCaptureSettings(const camera_metadata_t *) = 0;
+ // Separate initialization method for individual devices when opened
+ virtual int initDevice() = 0;
+ // Accessor used by initDevice() to set the templates' metadata
+ int setTemplate(int type, camera_metadata_t *static_info);
+ // Prettyprint template names
+ const char* templateToString(int type);
+
+ private:
+ // Camera device handle returned to framework for use
+ camera3_device_t mDevice;
+ // Reuse a stream already created by this device
+ Stream *reuseStream(camera3_stream_t *astream);
+ // Destroy all streams in a stream array, and the array itself
+ void destroyStreams(Stream **array, int count);
+ // Verify a set of streams is valid in aggregate
+ bool isValidStreamSet(Stream **array, int count);
+ // Calculate usage and max_bufs of each stream
+ void setupStreams(Stream **array, int count);
+ // Copy new settings for re-use and clean up old settings.
+ void setSettings(const camera_metadata_t *new_settings);
+ // Verify settings are valid for reprocessing an input buffer
+ bool isValidReprocessSettings(const camera_metadata_t *settings);
+ // Process an output buffer
+ int processCaptureBuffer(const camera3_stream_buffer_t *in,
+ camera3_stream_buffer_t *out);
+ // Send a shutter notify message with start of exposure time
+ void notifyShutter(uint32_t frame_number, uint64_t timestamp);
+ // Is type a valid template type (and valid index into mTemplates)
+ bool isValidTemplateType(int type);
+
+ // Identifier used by framework to distinguish cameras
+ const int mId;
+ // Metadata containing persistent camera characteristics
+ Metadata mMetadata;
+ // camera_metadata structure containing static characteristics
+ camera_metadata_t *mStaticInfo;
+ // Busy flag indicates camera is in use
+ bool mBusy;
+ // Camera device operations handle shared by all devices
+ const static camera3_device_ops_t sOps;
+ // Methods used to call back into the framework
+ const camera3_callback_ops_t *mCallbackOps;
+ // Lock protecting the Camera object for modifications
+ android::Mutex mDeviceLock;
+ // Lock protecting only static camera characteristics, which may
+ // be accessed without the camera device open
+ android::Mutex mStaticInfoLock;
+ // Array of handles to streams currently in use by the device
+ Stream **mStreams;
+ // Number of streams in mStreams
+ int mNumStreams;
+ // Static array of standard camera settings templates
+ camera_metadata_t *mTemplates[CAMERA3_TEMPLATE_COUNT];
+ // Most recent request settings seen, memoized to be reused
+ camera_metadata_t *mSettings;
+};
+} // namespace default_camera_hal
+
+#endif // CAMERA_H_
diff --git a/libhardware/modules/camera/CameraHAL.cpp b/libhardware/modules/camera/CameraHAL.cpp
new file mode 100644
index 0000000..62ee6d4
--- /dev/null
+++ b/libhardware/modules/camera/CameraHAL.cpp
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstdlib>
+#include <hardware/camera_common.h>
+#include <hardware/hardware.h>
+#include "ExampleCamera.h"
+#include "VendorTags.h"
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "DefaultCameraHAL"
+#include <cutils/log.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <cutils/trace.h>
+
+#include "CameraHAL.h"
+
+/*
+ * This file serves as the entry point to the HAL. It contains the module
+ * structure and functions used by the framework to load and interface to this
+ * HAL, as well as the handles to the individual camera devices.
+ */
+
+namespace default_camera_hal {
+
+// Default Camera HAL has 2 cameras, front and rear.
+static CameraHAL gCameraHAL(2);
+// Handle containing vendor tag functionality
+static VendorTags gVendorTags;
+
+CameraHAL::CameraHAL(int num_cameras)
+ : mNumberOfCameras(num_cameras),
+ mCallbacks(NULL)
+{
+ // Allocate camera array and instantiate camera devices
+ mCameras = new Camera*[mNumberOfCameras];
+ // Rear camera
+ mCameras[0] = new ExampleCamera(0);
+ // Front camera
+ mCameras[1] = new ExampleCamera(1);
+}
+
+CameraHAL::~CameraHAL()
+{
+ for (int i = 0; i < mNumberOfCameras; i++) {
+ delete mCameras[i];
+ }
+ delete [] mCameras;
+}
+
+int CameraHAL::getNumberOfCameras()
+{
+ ALOGV("%s: %d", __func__, mNumberOfCameras);
+ return mNumberOfCameras;
+}
+
+int CameraHAL::getCameraInfo(int id, struct camera_info* info)
+{
+ ALOGV("%s: camera id %d: info=%p", __func__, id, info);
+ if (id < 0 || id >= mNumberOfCameras) {
+ ALOGE("%s: Invalid camera id %d", __func__, id);
+ return -ENODEV;
+ }
+ // TODO: return device-specific static metadata
+ return mCameras[id]->getInfo(info);
+}
+
+int CameraHAL::setCallbacks(const camera_module_callbacks_t *callbacks)
+{
+ ALOGV("%s : callbacks=%p", __func__, callbacks);
+ mCallbacks = callbacks;
+ return 0;
+}
+
+int CameraHAL::open(const hw_module_t* mod, const char* name, hw_device_t** dev)
+{
+ int id;
+ char *nameEnd;
+
+ ALOGV("%s: module=%p, name=%s, device=%p", __func__, mod, name, dev);
+ if (*name == '\0') {
+ ALOGE("%s: Invalid camera id name is NULL", __func__);
+ return -EINVAL;
+ }
+ id = strtol(name, &nameEnd, 10);
+ if (*nameEnd != '\0') {
+ ALOGE("%s: Invalid camera id name %s", __func__, name);
+ return -EINVAL;
+ } else if (id < 0 || id >= mNumberOfCameras) {
+ ALOGE("%s: Invalid camera id %d", __func__, id);
+ return -ENODEV;
+ }
+ return mCameras[id]->open(mod, dev);
+}
+
+extern "C" {
+
+static int get_number_of_cameras()
+{
+ return gCameraHAL.getNumberOfCameras();
+}
+
+static int get_camera_info(int id, struct camera_info* info)
+{
+ return gCameraHAL.getCameraInfo(id, info);
+}
+
+static int set_callbacks(const camera_module_callbacks_t *callbacks)
+{
+ return gCameraHAL.setCallbacks(callbacks);
+}
+
+static int get_tag_count(const vendor_tag_ops_t* ops)
+{
+ return gVendorTags.getTagCount(ops);
+}
+
+static void get_all_tags(const vendor_tag_ops_t* ops, uint32_t* tag_array)
+{
+ gVendorTags.getAllTags(ops, tag_array);
+}
+
+static const char* get_section_name(const vendor_tag_ops_t* ops, uint32_t tag)
+{
+ return gVendorTags.getSectionName(ops, tag);
+}
+
+static const char* get_tag_name(const vendor_tag_ops_t* ops, uint32_t tag)
+{
+ return gVendorTags.getTagName(ops, tag);
+}
+
+static int get_tag_type(const vendor_tag_ops_t* ops, uint32_t tag)
+{
+ return gVendorTags.getTagType(ops, tag);
+}
+
+static void get_vendor_tag_ops(vendor_tag_ops_t* ops)
+{
+ ALOGV("%s : ops=%p", __func__, ops);
+ ops->get_tag_count = get_tag_count;
+ ops->get_all_tags = get_all_tags;
+ ops->get_section_name = get_section_name;
+ ops->get_tag_name = get_tag_name;
+ ops->get_tag_type = get_tag_type;
+}
+
+static int open_dev(const hw_module_t* mod, const char* name, hw_device_t** dev)
+{
+ return gCameraHAL.open(mod, name, dev);
+}
+
+static hw_module_methods_t gCameraModuleMethods = {
+ open : open_dev
+};
+
+camera_module_t HAL_MODULE_INFO_SYM __attribute__ ((visibility("default"))) = {
+ common : {
+ tag : HARDWARE_MODULE_TAG,
+ module_api_version : CAMERA_MODULE_API_VERSION_2_2,
+ hal_api_version : HARDWARE_HAL_API_VERSION,
+ id : CAMERA_HARDWARE_MODULE_ID,
+ name : "Default Camera HAL",
+ author : "The Android Open Source Project",
+ methods : &gCameraModuleMethods,
+ dso : NULL,
+ reserved : {0},
+ },
+ get_number_of_cameras : get_number_of_cameras,
+ get_camera_info : get_camera_info,
+ set_callbacks : set_callbacks,
+ get_vendor_tag_ops : get_vendor_tag_ops,
+ open_legacy : NULL,
+ set_torch_mode : NULL,
+ init : NULL,
+ reserved : {0},
+};
+} // extern "C"
+
+} // namespace default_camera_hal
diff --git a/libhardware/modules/camera/CameraHAL.h b/libhardware/modules/camera/CameraHAL.h
new file mode 100644
index 0000000..74a70a6
--- /dev/null
+++ b/libhardware/modules/camera/CameraHAL.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAMERA_HAL_H_
+#define CAMERA_HAL_H_
+
+#include <cutils/bitops.h>
+#include <hardware/hardware.h>
+#include <hardware/camera_common.h>
+#include <system/camera_vendor_tags.h>
+#include "Camera.h"
+#include "VendorTags.h"
+
+namespace default_camera_hal {
+// CameraHAL contains all module state that isn't specific to an individual
+// camera device.
+class CameraHAL {
+ public:
+ explicit CameraHAL(int num_cameras);
+ ~CameraHAL();
+
+ // Camera Module Interface (see <hardware/camera_common.h>)
+ int getNumberOfCameras();
+ int getCameraInfo(int camera_id, struct camera_info *info);
+ int setCallbacks(const camera_module_callbacks_t *callbacks);
+ void getVendorTagOps(vendor_tag_ops_t* ops);
+
+ // Hardware Module Interface (see <hardware/hardware.h>)
+ int open(const hw_module_t* mod, const char* name, hw_device_t** dev);
+
+ private:
+ // Number of cameras
+ const int mNumberOfCameras;
+ // Callback handle
+ const camera_module_callbacks_t *mCallbacks;
+ // Array of camera devices, contains mNumberOfCameras device pointers
+ Camera **mCameras;
+};
+} // namespace default_camera_hal
+
+#endif // CAMERA_HAL_H_
diff --git a/libhardware/modules/camera/ExampleCamera.cpp b/libhardware/modules/camera/ExampleCamera.cpp
new file mode 100644
index 0000000..2b1f185
--- /dev/null
+++ b/libhardware/modules/camera/ExampleCamera.cpp
@@ -0,0 +1,273 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <system/camera_metadata.h>
+#include "Camera.h"
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ExampleCamera"
+#include <cutils/log.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "ExampleCamera.h"
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
+namespace default_camera_hal {
+
+ExampleCamera::ExampleCamera(int id) : Camera(id)
+{
+}
+
+ExampleCamera::~ExampleCamera()
+{
+}
+
+camera_metadata_t *ExampleCamera::initStaticInfo()
+{
+ /*
+ * Setup static camera info. This will have to customized per camera
+ * device.
+ */
+ Metadata m;
+
+ /* android.control */
+ int32_t android_control_ae_available_target_fps_ranges[] = {30, 30};
+ m.addInt32(ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES,
+ ARRAY_SIZE(android_control_ae_available_target_fps_ranges),
+ android_control_ae_available_target_fps_ranges);
+
+ int32_t android_control_ae_compensation_range[] = {-4, 4};
+ m.addInt32(ANDROID_CONTROL_AE_COMPENSATION_RANGE,
+ ARRAY_SIZE(android_control_ae_compensation_range),
+ android_control_ae_compensation_range);
+
+ camera_metadata_rational_t android_control_ae_compensation_step[] = {{2,1}};
+ m.addRational(ANDROID_CONTROL_AE_COMPENSATION_STEP,
+ ARRAY_SIZE(android_control_ae_compensation_step),
+ android_control_ae_compensation_step);
+
+ int32_t android_control_max_regions[] = {/*AE*/ 1,/*AWB*/ 1,/*AF*/ 1};
+ m.addInt32(ANDROID_CONTROL_MAX_REGIONS,
+ ARRAY_SIZE(android_control_max_regions),
+ android_control_max_regions);
+
+ /* android.jpeg */
+ int32_t android_jpeg_available_thumbnail_sizes[] = {0, 0, 128, 96};
+ m.addInt32(ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES,
+ ARRAY_SIZE(android_jpeg_available_thumbnail_sizes),
+ android_jpeg_available_thumbnail_sizes);
+
+ int32_t android_jpeg_max_size[] = {13 * 1024 * 1024}; // 13MB
+ m.addInt32(ANDROID_JPEG_MAX_SIZE,
+ ARRAY_SIZE(android_jpeg_max_size),
+ android_jpeg_max_size);
+
+ /* android.lens */
+ float android_lens_info_available_focal_lengths[] = {1.0};
+ m.addFloat(ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS,
+ ARRAY_SIZE(android_lens_info_available_focal_lengths),
+ android_lens_info_available_focal_lengths);
+
+ /* android.request */
+ int32_t android_request_max_num_output_streams[] = {0, 3, 1};
+ m.addInt32(ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS,
+ ARRAY_SIZE(android_request_max_num_output_streams),
+ android_request_max_num_output_streams);
+
+ /* android.scaler */
+ int32_t android_scaler_available_formats[] = {
+ HAL_PIXEL_FORMAT_RAW16,
+ HAL_PIXEL_FORMAT_BLOB,
+ HAL_PIXEL_FORMAT_RGBA_8888,
+ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ // These are handled by YCbCr_420_888
+ // HAL_PIXEL_FORMAT_YV12,
+ // HAL_PIXEL_FORMAT_YCrCb_420_SP,
+ HAL_PIXEL_FORMAT_YCbCr_420_888};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_FORMATS,
+ ARRAY_SIZE(android_scaler_available_formats),
+ android_scaler_available_formats);
+
+ int64_t android_scaler_available_jpeg_min_durations[] = {1};
+ m.addInt64(ANDROID_SCALER_AVAILABLE_JPEG_MIN_DURATIONS,
+ ARRAY_SIZE(android_scaler_available_jpeg_min_durations),
+ android_scaler_available_jpeg_min_durations);
+
+ int32_t android_scaler_available_jpeg_sizes[] = {640, 480};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_JPEG_SIZES,
+ ARRAY_SIZE(android_scaler_available_jpeg_sizes),
+ android_scaler_available_jpeg_sizes);
+
+ float android_scaler_available_max_digital_zoom[] = {1};
+ m.addFloat(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
+ ARRAY_SIZE(android_scaler_available_max_digital_zoom),
+ android_scaler_available_max_digital_zoom);
+
+ int64_t android_scaler_available_processed_min_durations[] = {1};
+ m.addInt64(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS,
+ ARRAY_SIZE(android_scaler_available_processed_min_durations),
+ android_scaler_available_processed_min_durations);
+
+ int32_t android_scaler_available_processed_sizes[] = {640, 480};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES,
+ ARRAY_SIZE(android_scaler_available_processed_sizes),
+ android_scaler_available_processed_sizes);
+
+ int64_t android_scaler_available_raw_min_durations[] = {1};
+ m.addInt64(ANDROID_SCALER_AVAILABLE_RAW_MIN_DURATIONS,
+ ARRAY_SIZE(android_scaler_available_raw_min_durations),
+ android_scaler_available_raw_min_durations);
+
+ int32_t android_scaler_available_raw_sizes[] = {640, 480};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_RAW_SIZES,
+ ARRAY_SIZE(android_scaler_available_raw_sizes),
+ android_scaler_available_raw_sizes);
+
+ /* android.sensor */
+
+ int32_t android_sensor_info_active_array_size[] = {0, 0, 640, 480};
+ m.addInt32(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
+ ARRAY_SIZE(android_sensor_info_active_array_size),
+ android_sensor_info_active_array_size);
+
+ int32_t android_sensor_info_sensitivity_range[] =
+ {100, 1600};
+ m.addInt32(ANDROID_SENSOR_INFO_SENSITIVITY_RANGE,
+ ARRAY_SIZE(android_sensor_info_sensitivity_range),
+ android_sensor_info_sensitivity_range);
+
+ int64_t android_sensor_info_max_frame_duration[] = {30000000000};
+ m.addInt64(ANDROID_SENSOR_INFO_MAX_FRAME_DURATION,
+ ARRAY_SIZE(android_sensor_info_max_frame_duration),
+ android_sensor_info_max_frame_duration);
+
+ float android_sensor_info_physical_size[] = {3.2, 2.4};
+ m.addFloat(ANDROID_SENSOR_INFO_PHYSICAL_SIZE,
+ ARRAY_SIZE(android_sensor_info_physical_size),
+ android_sensor_info_physical_size);
+
+ int32_t android_sensor_info_pixel_array_size[] = {640, 480};
+ m.addInt32(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
+ ARRAY_SIZE(android_sensor_info_pixel_array_size),
+ android_sensor_info_pixel_array_size);
+
+ int32_t android_sensor_orientation[] = {0};
+ m.addInt32(ANDROID_SENSOR_ORIENTATION,
+ ARRAY_SIZE(android_sensor_orientation),
+ android_sensor_orientation);
+
+ /* End of static camera characteristics */
+
+ return clone_camera_metadata(m.get());
+}
+
+int ExampleCamera::initDevice()
+{
+ int res;
+ Metadata base;
+
+ // Create standard settings templates from copies of base metadata
+ // TODO: use vendor tags in base metadata
+ res = base.add1UInt8(ANDROID_CONTROL_MODE, ANDROID_CONTROL_MODE_OFF);
+ if (res)
+ return res;
+
+ // Use base settings to create all other templates and set them
+ res = setPreviewTemplate(base);
+ if (res)
+ return res;
+ res = setStillTemplate(base);
+ if (res)
+ return res;
+ res = setRecordTemplate(base);
+ if (res)
+ return res;
+ res = setSnapshotTemplate(base);
+ if (res)
+ return res;
+ res = setZslTemplate(base);
+ if (res)
+ return res;
+
+ return 0;
+}
+
+int ExampleCamera::setPreviewTemplate(Metadata m)
+{
+ // Setup default preview controls
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_PREVIEW);
+
+ if (res)
+ return res;
+ // TODO: set fast auto-focus, auto-whitebalance, auto-exposure, auto flash
+ return setTemplate(CAMERA3_TEMPLATE_PREVIEW, m.get());
+}
+
+int ExampleCamera::setStillTemplate(Metadata m)
+{
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_STILL_CAPTURE);
+ // Setup default still capture controls
+ if (res)
+ return res;
+ // TODO: set fast auto-focus, auto-whitebalance, auto-exposure, auto flash
+ return setTemplate(CAMERA3_TEMPLATE_STILL_CAPTURE, m.get());
+}
+
+int ExampleCamera::setRecordTemplate(Metadata m)
+{
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_VIDEO_RECORD);
+ // Setup default video record controls
+ if (res)
+ return res;
+ // TODO: set slow auto-focus, auto-whitebalance, auto-exposure, flash off
+ return setTemplate(CAMERA3_TEMPLATE_VIDEO_RECORD, m.get());
+}
+
+int ExampleCamera::setSnapshotTemplate(Metadata m)
+{
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT);
+ // Setup default video snapshot controls
+ if (res)
+ return res;
+ // TODO: set slow auto-focus, auto-whitebalance, auto-exposure, flash off
+ return setTemplate(CAMERA3_TEMPLATE_VIDEO_SNAPSHOT, m.get());
+}
+
+int ExampleCamera::setZslTemplate(Metadata m)
+{
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG);
+ // Setup default zero shutter lag controls
+ if (res)
+ return res;
+ // TODO: set reprocessing parameters for zsl input queue
+ return setTemplate(CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG, m.get());
+}
+
+bool ExampleCamera::isValidCaptureSettings(const camera_metadata_t* settings)
+{
+ // TODO: reject settings that cannot be captured
+ return true;
+}
+
+} // namespace default_camera_hal
diff --git a/libhardware/modules/camera/ExampleCamera.h b/libhardware/modules/camera/ExampleCamera.h
new file mode 100644
index 0000000..44eac76
--- /dev/null
+++ b/libhardware/modules/camera/ExampleCamera.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef EXAMPLE_CAMERA_H_
+#define EXAMPLE_CAMERA_H_
+
+#include <system/camera_metadata.h>
+#include "Camera.h"
+
+namespace default_camera_hal {
+// ExampleCamera is an example for a specific camera device. The Camera object
+// contains all logic common between all cameras (e.g. front and back cameras),
+// while a specific camera device (e.g. ExampleCamera) holds all specific
+// metadata and logic about that device.
+class ExampleCamera : public Camera {
+ public:
+ explicit ExampleCamera(int id);
+ ~ExampleCamera();
+
+ private:
+ // Initialize static camera characteristics for individual device
+ camera_metadata_t *initStaticInfo();
+ // Initialize whole device (templates/etc) when opened
+ int initDevice();
+ // Initialize each template metadata controls
+ int setPreviewTemplate(Metadata m);
+ int setStillTemplate(Metadata m);
+ int setRecordTemplate(Metadata m);
+ int setSnapshotTemplate(Metadata m);
+ int setZslTemplate(Metadata m);
+ // Verify settings are valid for a capture with this device
+ bool isValidCaptureSettings(const camera_metadata_t* settings);
+};
+} // namespace default_camera_hal
+
+#endif // CAMERA_H_
diff --git a/libhardware/modules/camera/Metadata.cpp b/libhardware/modules/camera/Metadata.cpp
new file mode 100644
index 0000000..18e5239
--- /dev/null
+++ b/libhardware/modules/camera/Metadata.cpp
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <system/camera_metadata.h>
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Metadata"
+#include <cutils/log.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "Metadata.h"
+
+namespace default_camera_hal {
+
+Metadata::Metadata():
+ mData(NULL)
+{
+}
+
+Metadata::~Metadata()
+{
+ replace(NULL);
+}
+
+void Metadata::replace(camera_metadata_t *m)
+{
+ if (m == mData) {
+ ALOGE("%s: Replacing metadata with itself?!", __func__);
+ return;
+ }
+ if (mData)
+ free_camera_metadata(mData);
+ mData = m;
+}
+
+int Metadata::init(const camera_metadata_t *metadata)
+{
+ camera_metadata_t* tmp;
+
+ if (validate_camera_metadata_structure(metadata, NULL))
+ return -EINVAL;
+
+ tmp = clone_camera_metadata(metadata);
+ if (tmp == NULL)
+ return -EINVAL;
+
+ replace(tmp);
+ return 0;
+}
+
+int Metadata::addUInt8(uint32_t tag, int count, const uint8_t *data)
+{
+ if (!validate(tag, TYPE_BYTE, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::add1UInt8(uint32_t tag, const uint8_t data)
+{
+ return addUInt8(tag, 1, &data);
+}
+
+int Metadata::addInt32(uint32_t tag, int count, const int32_t *data)
+{
+ if (!validate(tag, TYPE_INT32, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addFloat(uint32_t tag, int count, const float *data)
+{
+ if (!validate(tag, TYPE_FLOAT, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addInt64(uint32_t tag, int count, const int64_t *data)
+{
+ if (!validate(tag, TYPE_INT64, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addDouble(uint32_t tag, int count, const double *data)
+{
+ if (!validate(tag, TYPE_DOUBLE, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addRational(uint32_t tag, int count,
+ const camera_metadata_rational_t *data)
+{
+ if (!validate(tag, TYPE_RATIONAL, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+bool Metadata::validate(uint32_t tag, int tag_type, int count)
+{
+ if (get_camera_metadata_tag_type(tag) < 0) {
+ ALOGE("%s: Invalid metadata entry tag: %d", __func__, tag);
+ return false;
+ }
+ if (tag_type < 0 || tag_type >= NUM_TYPES) {
+ ALOGE("%s: Invalid metadata entry tag type: %d", __func__, tag_type);
+ return false;
+ }
+ if (tag_type != get_camera_metadata_tag_type(tag)) {
+ ALOGE("%s: Tag %d called with incorrect type: %s(%d)", __func__, tag,
+ camera_metadata_type_names[tag_type], tag_type);
+ return false;
+ }
+ if (count < 1) {
+ ALOGE("%s: Invalid metadata entry count: %d", __func__, count);
+ return false;
+ }
+ return true;
+}
+
+int Metadata::add(uint32_t tag, int count, const void *tag_data)
+{
+ int res;
+ size_t entry_capacity = 0;
+ size_t data_capacity = 0;
+ camera_metadata_t* tmp;
+ int tag_type = get_camera_metadata_tag_type(tag);
+ size_t size = calculate_camera_metadata_entry_data_size(tag_type, count);
+
+ if (NULL == mData) {
+ entry_capacity = 1;
+ data_capacity = size;
+ } else {
+ entry_capacity = get_camera_metadata_entry_count(mData) + 1;
+ data_capacity = get_camera_metadata_data_count(mData) + size;
+ }
+
+ // Opportunistically attempt to add if metadata exists and has room for it
+ if (mData && !add_camera_metadata_entry(mData, tag, tag_data, count))
+ return 0;
+ // Double new dimensions to minimize future reallocations
+ tmp = allocate_camera_metadata(entry_capacity * 2, data_capacity * 2);
+ if (tmp == NULL) {
+ ALOGE("%s: Failed to allocate new metadata with %zu entries, %zu data",
+ __func__, entry_capacity, data_capacity);
+ return -ENOMEM;
+ }
+ // Append the current metadata to the new (empty) metadata, if any
+ if (NULL != mData) {
+ res = append_camera_metadata(tmp, mData);
+ if (res) {
+ ALOGE("%s: Failed to append old metadata %p to new %p",
+ __func__, mData, tmp);
+ return res;
+ }
+ }
+ // Add the remaining new item to tmp and replace mData
+ res = add_camera_metadata_entry(tmp, tag, tag_data, count);
+ if (res) {
+ ALOGE("%s: Failed to add new entry (%d, %p, %d) to metadata %p",
+ __func__, tag, tag_data, count, tmp);
+ return res;
+ }
+ replace(tmp);
+
+ return 0;
+}
+
+camera_metadata_t* Metadata::get()
+{
+ return mData;
+}
+
+} // namespace default_camera_hal
diff --git a/libhardware/modules/camera/Metadata.h b/libhardware/modules/camera/Metadata.h
new file mode 100644
index 0000000..f432d04
--- /dev/null
+++ b/libhardware/modules/camera/Metadata.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef METADATA_H_
+#define METADATA_H_
+
+#include <stdint.h>
+#include <hardware/camera3.h>
+#include <system/camera_metadata.h>
+
+namespace default_camera_hal {
+// Metadata is a convenience class for dealing with libcamera_metadata
+class Metadata {
+ public:
+ Metadata();
+ ~Metadata();
+ // Initialize with framework metadata
+ int init(const camera_metadata_t *metadata);
+
+ // Parse and add an entry. Allocates and copies new storage for *data.
+ int addUInt8(uint32_t tag, int count, const uint8_t *data);
+ int add1UInt8(uint32_t tag, const uint8_t data);
+ int addInt32(uint32_t tag, int count, const int32_t *data);
+ int addFloat(uint32_t tag, int count, const float *data);
+ int addInt64(uint32_t tag, int count, const int64_t *data);
+ int addDouble(uint32_t tag, int count, const double *data);
+ int addRational(uint32_t tag, int count,
+ const camera_metadata_rational_t *data);
+
+ // Get a handle to the current metadata
+ // This is not a durable handle, and may be destroyed by add*/init
+ camera_metadata_t* get();
+
+ private:
+ // Actual internal storage
+ camera_metadata_t* mData;
+ // Destroy old metadata and replace with new
+ void replace(camera_metadata_t *m);
+ // Validate the tag, type and count for a metadata entry
+ bool validate(uint32_t tag, int tag_type, int count);
+ // Add a verified tag with data
+ int add(uint32_t tag, int count, const void *tag_data);
+};
+} // namespace default_camera_hal
+
+#endif // METADATA_H_
diff --git a/libhardware/modules/camera/Stream.cpp b/libhardware/modules/camera/Stream.cpp
new file mode 100644
index 0000000..e0099b6
--- /dev/null
+++ b/libhardware/modules/camera/Stream.cpp
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <hardware/camera3.h>
+#include <hardware/gralloc.h>
+#include <system/graphics.h>
+#include <utils/Mutex.h>
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Stream"
+#include <cutils/log.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "Stream.h"
+
+namespace default_camera_hal {
+
+Stream::Stream(int id, camera3_stream_t *s)
+ : mReuse(false),
+ mId(id),
+ mStream(s),
+ mType(s->stream_type),
+ mWidth(s->width),
+ mHeight(s->height),
+ mFormat(s->format),
+ mUsage(0),
+ mMaxBuffers(0),
+ mRegistered(false),
+ mBuffers(0),
+ mNumBuffers(0)
+{
+}
+
+Stream::~Stream()
+{
+ android::Mutex::Autolock al(mLock);
+ unregisterBuffers_L();
+}
+
+void Stream::setUsage(uint32_t usage)
+{
+ android::Mutex::Autolock al(mLock);
+ if (usage != mUsage) {
+ mUsage = usage;
+ mStream->usage = usage;
+ unregisterBuffers_L();
+ }
+}
+
+void Stream::setMaxBuffers(uint32_t max_buffers)
+{
+ android::Mutex::Autolock al(mLock);
+ if (max_buffers != mMaxBuffers) {
+ mMaxBuffers = max_buffers;
+ mStream->max_buffers = max_buffers;
+ unregisterBuffers_L();
+ }
+}
+
+int Stream::getType()
+{
+ return mType;
+}
+
+bool Stream::isInputType()
+{
+ return mType == CAMERA3_STREAM_INPUT ||
+ mType == CAMERA3_STREAM_BIDIRECTIONAL;
+}
+
+bool Stream::isOutputType()
+{
+ return mType == CAMERA3_STREAM_OUTPUT ||
+ mType == CAMERA3_STREAM_BIDIRECTIONAL;
+}
+
+const char* Stream::typeToString(int type)
+{
+ switch (type) {
+ case CAMERA3_STREAM_INPUT:
+ return "CAMERA3_STREAM_INPUT";
+ case CAMERA3_STREAM_OUTPUT:
+ return "CAMERA3_STREAM_OUTPUT";
+ case CAMERA3_STREAM_BIDIRECTIONAL:
+ return "CAMERA3_STREAM_BIDIRECTIONAL";
+ }
+ return "Invalid stream type!";
+}
+
+const char* Stream::formatToString(int format)
+{
+ // See <system/graphics.h> for full list
+ switch (format) {
+ case HAL_PIXEL_FORMAT_BGRA_8888:
+ return "BGRA 8888";
+ case HAL_PIXEL_FORMAT_RGBA_8888:
+ return "RGBA 8888";
+ case HAL_PIXEL_FORMAT_RGBX_8888:
+ return "RGBX 8888";
+ case HAL_PIXEL_FORMAT_RGB_888:
+ return "RGB 888";
+ case HAL_PIXEL_FORMAT_RGB_565:
+ return "RGB 565";
+ case HAL_PIXEL_FORMAT_Y8:
+ return "Y8";
+ case HAL_PIXEL_FORMAT_Y16:
+ return "Y16";
+ case HAL_PIXEL_FORMAT_YV12:
+ return "YV12";
+ case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+ return "NV16";
+ case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+ return "NV21";
+ case HAL_PIXEL_FORMAT_YCbCr_422_I:
+ return "YUY2";
+ case HAL_PIXEL_FORMAT_RAW10:
+ return "RAW10";
+ case HAL_PIXEL_FORMAT_RAW16:
+ return "RAW16";
+ case HAL_PIXEL_FORMAT_BLOB:
+ return "BLOB";
+ case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
+ return "IMPLEMENTATION DEFINED";
+ case HAL_PIXEL_FORMAT_YCbCr_420_888:
+ return "FLEXIBLE YCbCr 420 888";
+ }
+ return "Invalid stream format!";
+}
+
+bool Stream::isRegistered()
+{
+ return mRegistered;
+}
+
+bool Stream::isValidReuseStream(int id, camera3_stream_t *s)
+{
+ if (id != mId) {
+ ALOGE("%s:%d: Invalid camera id for reuse. Got %d expect %d",
+ __func__, mId, id, mId);
+ return false;
+ }
+ if (s != mStream) {
+ ALOGE("%s:%d: Invalid stream handle for reuse. Got %p expect %p",
+ __func__, mId, s, mStream);
+ return false;
+ }
+ if (s->stream_type != mType) {
+ ALOGE("%s:%d: Mismatched type in reused stream. Got %s(%d) "
+ "expect %s(%d)", __func__, mId, typeToString(s->stream_type),
+ s->stream_type, typeToString(mType), mType);
+ return false;
+ }
+ if (s->format != mFormat) {
+ ALOGE("%s:%d: Mismatched format in reused stream. Got %s(%d) "
+ "expect %s(%d)", __func__, mId, formatToString(s->format),
+ s->format, formatToString(mFormat), mFormat);
+ return false;
+ }
+ if (s->width != mWidth) {
+ ALOGE("%s:%d: Mismatched width in reused stream. Got %d expect %d",
+ __func__, mId, s->width, mWidth);
+ return false;
+ }
+ if (s->height != mHeight) {
+ ALOGE("%s:%d: Mismatched height in reused stream. Got %d expect %d",
+ __func__, mId, s->height, mHeight);
+ return false;
+ }
+ return true;
+}
+
+int Stream::registerBuffers(const camera3_stream_buffer_set_t *buf_set)
+{
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mLock);
+
+ if (buf_set->stream != mStream) {
+ ALOGE("%s:%d: Buffer set for invalid stream. Got %p expect %p",
+ __func__, mId, buf_set->stream, mStream);
+ return -EINVAL;
+ }
+
+ mNumBuffers = buf_set->num_buffers;
+ mBuffers = new buffer_handle_t*[mNumBuffers];
+
+ for (unsigned int i = 0; i < mNumBuffers; i++) {
+ ALOGV("%s:%d: Registering buffer %p", __func__, mId,
+ buf_set->buffers[i]);
+ mBuffers[i] = buf_set->buffers[i];
+ // TODO: register buffers with hw, handle error cases
+ }
+ mRegistered = true;
+
+ return 0;
+}
+
+// This must only be called with mLock held
+void Stream::unregisterBuffers_L()
+{
+ mRegistered = false;
+ mNumBuffers = 0;
+ delete [] mBuffers;
+ // TODO: unregister buffers from hw
+}
+
+void Stream::dump(int fd)
+{
+ android::Mutex::Autolock al(mLock);
+
+ dprintf(fd, "Stream ID: %d (%p)\n", mId, mStream);
+ dprintf(fd, "Stream Type: %s (%d)\n", typeToString(mType), mType);
+ dprintf(fd, "Width: %" PRIu32 " Height: %" PRIu32 "\n", mWidth, mHeight);
+ dprintf(fd, "Stream Format: %s (%d)", formatToString(mFormat), mFormat);
+ // ToDo: prettyprint usage mask flags
+ dprintf(fd, "Gralloc Usage Mask: %#" PRIx32 "\n", mUsage);
+ dprintf(fd, "Max Buffer Count: %" PRIu32 "\n", mMaxBuffers);
+ dprintf(fd, "Buffers Registered: %s\n", mRegistered ? "true" : "false");
+ dprintf(fd, "Number of Buffers: %" PRIu32 "\n", mNumBuffers);
+ for (uint32_t i = 0; i < mNumBuffers; i++) {
+ dprintf(fd, "Buffer %" PRIu32 "/%" PRIu32 ": %p\n", i, mNumBuffers,
+ mBuffers[i]);
+ }
+}
+
+} // namespace default_camera_hal
diff --git a/libhardware/modules/camera/Stream.h b/libhardware/modules/camera/Stream.h
new file mode 100644
index 0000000..5efbc52
--- /dev/null
+++ b/libhardware/modules/camera/Stream.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STREAM_H_
+#define STREAM_H_
+
+#include <hardware/camera3.h>
+#include <hardware/gralloc.h>
+#include <system/graphics.h>
+#include <utils/Mutex.h>
+
+namespace default_camera_hal {
+// Stream represents a single input or output stream for a camera device.
+class Stream {
+ public:
+ Stream(int id, camera3_stream_t *s);
+ ~Stream();
+
+ // validate that astream's parameters match this stream's parameters
+ bool isValidReuseStream(int id, camera3_stream_t *s);
+
+ // Register buffers with hardware
+ int registerBuffers(const camera3_stream_buffer_set_t *buf_set);
+
+ void setUsage(uint32_t usage);
+ void setMaxBuffers(uint32_t max_buffers);
+
+ int getType();
+ bool isInputType();
+ bool isOutputType();
+ bool isRegistered();
+ const char* typeToString(int type);
+ const char* formatToString(int format);
+ void dump(int fd);
+
+ // This stream is being reused. Used in stream configuration passes
+ bool mReuse;
+
+ private:
+ // Clean up buffer state. must be called with mLock held.
+ void unregisterBuffers_L();
+
+ // The camera device id this stream belongs to
+ const int mId;
+ // Handle to framework's stream, used as a cookie for buffers
+ camera3_stream_t *mStream;
+ // Stream type: CAMERA3_STREAM_* (see <hardware/camera3.h>)
+ const int mType;
+ // Width in pixels of the buffers in this stream
+ const uint32_t mWidth;
+ // Height in pixels of the buffers in this stream
+ const uint32_t mHeight;
+ // Gralloc format: HAL_PIXEL_FORMAT_* (see <system/graphics.h>)
+ const int mFormat;
+ // Gralloc usage mask : GRALLOC_USAGE_* (see <hardware/gralloc.h>)
+ uint32_t mUsage;
+ // Max simultaneous in-flight buffers for this stream
+ uint32_t mMaxBuffers;
+ // Buffers have been registered for this stream and are ready
+ bool mRegistered;
+ // Array of handles to buffers currently in use by the stream
+ buffer_handle_t **mBuffers;
+ // Number of buffers in mBuffers
+ unsigned int mNumBuffers;
+ // Lock protecting the Stream object for modifications
+ android::Mutex mLock;
+};
+} // namespace default_camera_hal
+
+#endif // STREAM_H_
diff --git a/libhardware/modules/camera/VendorTags.cpp b/libhardware/modules/camera/VendorTags.cpp
new file mode 100644
index 0000000..2c54648
--- /dev/null
+++ b/libhardware/modules/camera/VendorTags.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <system/camera_metadata.h>
+#include "Metadata.h"
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "VendorTags"
+#include <cutils/log.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "VendorTags.h"
+
+namespace default_camera_hal {
+
+// Internal representations of vendor tags for convenience.
+// Other classes must access this data via public interfaces.
+// Structured to be easy to extend and contain complexity.
+namespace {
+// Describes a single vendor tag entry
+struct Entry {
+ const char* name;
+ uint8_t type;
+};
+// Describes a vendor tag section
+struct Section {
+ const char* name;
+ uint32_t start;
+ uint32_t end;
+ const Entry* tags;
+};
+
+// Entry arrays for each section
+const Entry DemoWizardry[demo_wizardry_end - demo_wizardry_start] = {
+ [demo_wizardry_dimension_size - demo_wizardry_start] =
+ {"dimensionSize", TYPE_INT32},
+ [demo_wizardry_dimensions - demo_wizardry_start] =
+ {"dimensions", TYPE_INT32},
+ [demo_wizardry_familiar - demo_wizardry_start] =
+ {"familiar", TYPE_BYTE},
+ [demo_wizardry_fire - demo_wizardry_start] =
+ {"fire", TYPE_RATIONAL}
+};
+
+const Entry DemoSorcery[demo_sorcery_end - demo_sorcery_start] = {
+ [demo_sorcery_difficulty - demo_sorcery_start] =
+ {"difficulty", TYPE_INT64},
+ [demo_sorcery_light - demo_sorcery_start] =
+ {"light", TYPE_BYTE}
+};
+
+const Entry DemoMagic[demo_magic_end - demo_magic_start] = {
+ [demo_magic_card_trick - demo_magic_start] =
+ {"cardTrick", TYPE_DOUBLE},
+ [demo_magic_levitation - demo_magic_start] =
+ {"levitation", TYPE_FLOAT}
+};
+
+// Array of all sections
+const Section DemoSections[DEMO_SECTION_COUNT] = {
+ [DEMO_WIZARDRY] = { "demo.wizardry",
+ demo_wizardry_start,
+ demo_wizardry_end,
+ DemoWizardry },
+ [DEMO_SORCERY] = { "demo.sorcery",
+ demo_sorcery_start,
+ demo_sorcery_end,
+ DemoSorcery },
+ [DEMO_MAGIC] = { "demo.magic",
+ demo_magic_start,
+ demo_magic_end,
+ DemoMagic }
+};
+
+// Get a static handle to a specific vendor tag section
+const Section* getSection(uint32_t tag)
+{
+ uint32_t section = (tag - vendor_section_start) >> 16;
+
+ if (tag < vendor_section_start) {
+ ALOGE("%s: Tag 0x%x before vendor section", __func__, tag);
+ return NULL;
+ }
+
+ if (section >= DEMO_SECTION_COUNT) {
+ ALOGE("%s: Tag 0x%x after vendor section", __func__, tag);
+ return NULL;
+ }
+
+ return &DemoSections[section];
+}
+
+// Get a static handle to a specific vendor tag entry
+const Entry* getEntry(uint32_t tag)
+{
+ const Section* section = getSection(tag);
+ int index;
+
+ if (section == NULL)
+ return NULL;
+
+ if (tag >= section->end) {
+ ALOGE("%s: Tag 0x%x outside section", __func__, tag);
+ return NULL;
+ }
+
+ index = tag - section->start;
+ return §ion->tags[index];
+}
+} // namespace
+
+VendorTags::VendorTags()
+ : mTagCount(0)
+{
+ for (int i = 0; i < DEMO_SECTION_COUNT; i++) {
+ mTagCount += DemoSections[i].end - DemoSections[i].start;
+ }
+}
+
+VendorTags::~VendorTags()
+{
+}
+
+int VendorTags::getTagCount(const vendor_tag_ops_t* ops)
+{
+ return mTagCount;
+}
+
+void VendorTags::getAllTags(const vendor_tag_ops_t* ops, uint32_t* tag_array)
+{
+ if (tag_array == NULL) {
+ ALOGE("%s: NULL tag_array", __func__);
+ return;
+ }
+
+ for (int i = 0; i < DEMO_SECTION_COUNT; i++) {
+ for (uint32_t tag = DemoSections[i].start;
+ tag < DemoSections[i].end; tag++) {
+ *tag_array++ = tag;
+ }
+ }
+}
+
+const char* VendorTags::getSectionName(const vendor_tag_ops_t* ops, uint32_t tag)
+{
+ const Section* section = getSection(tag);
+
+ if (section == NULL)
+ return NULL;
+
+ return section->name;
+}
+
+const char* VendorTags::getTagName(const vendor_tag_ops_t* ops, uint32_t tag)
+{
+ const Entry* entry = getEntry(tag);
+
+ if (entry == NULL)
+ return NULL;
+
+ return entry->name;
+}
+
+int VendorTags::getTagType(const vendor_tag_ops_t* ops, uint32_t tag)
+{
+ const Entry* entry = getEntry(tag);
+
+ if (entry == NULL)
+ return -1;
+
+ return entry->type;
+}
+} // namespace default_camera_hal
diff --git a/libhardware/modules/camera/VendorTags.h b/libhardware/modules/camera/VendorTags.h
new file mode 100644
index 0000000..ecf777e
--- /dev/null
+++ b/libhardware/modules/camera/VendorTags.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef VENDOR_TAGS_H_
+#define VENDOR_TAGS_H_
+
+#include <hardware/camera_common.h>
+#include <system/camera_metadata.h>
+
+namespace default_camera_hal {
+
+// VendorTags contains all vendor-specific metadata tag functionality
+class VendorTags {
+ public:
+ VendorTags();
+ ~VendorTags();
+
+ // Vendor Tags Operations (see <hardware/camera_common.h>)
+ int getTagCount(const vendor_tag_ops_t* ops);
+ void getAllTags(const vendor_tag_ops_t* ops, uint32_t* tag_array);
+ const char* getSectionName(const vendor_tag_ops_t* ops, uint32_t tag);
+ const char* getTagName(const vendor_tag_ops_t* ops, uint32_t tag);
+ int getTagType(const vendor_tag_ops_t* ops, uint32_t tag);
+
+ private:
+ // Total number of vendor tags
+ int mTagCount;
+};
+
+// Tag sections start at the beginning of vendor tags (0x8000_0000)
+// See <system/camera_metadata.h>
+enum {
+ DEMO_WIZARDRY,
+ DEMO_SORCERY,
+ DEMO_MAGIC,
+ DEMO_SECTION_COUNT
+};
+
+const uint32_t vendor_section_start = VENDOR_SECTION_START;
+
+// Each section starts at increments of 0x1_0000
+const uint32_t demo_wizardry_start = (DEMO_WIZARDRY + VENDOR_SECTION) << 16;
+const uint32_t demo_sorcery_start = (DEMO_SORCERY + VENDOR_SECTION) << 16;
+const uint32_t demo_magic_start = (DEMO_MAGIC + VENDOR_SECTION) << 16;
+
+// Vendor Tag values, start value begins each section
+const uint32_t demo_wizardry_dimension_size = demo_wizardry_start;
+const uint32_t demo_wizardry_dimensions = demo_wizardry_start + 1;
+const uint32_t demo_wizardry_familiar = demo_wizardry_start + 2;
+const uint32_t demo_wizardry_fire = demo_wizardry_start + 3;
+const uint32_t demo_wizardry_end = demo_wizardry_start + 4;
+
+const uint32_t demo_sorcery_difficulty = demo_sorcery_start;
+const uint32_t demo_sorcery_light = demo_sorcery_start + 1;
+const uint32_t demo_sorcery_end = demo_sorcery_start + 2;
+
+const uint32_t demo_magic_card_trick = demo_magic_start;
+const uint32_t demo_magic_levitation = demo_magic_start + 1;
+const uint32_t demo_magic_end = demo_magic_start + 2;
+
+} // namespace default_camera_hal
+
+#endif // VENDOR_TAGS_H_
diff --git a/libhardware/modules/consumerir/Android.bp b/libhardware/modules/consumerir/Android.bp
new file mode 100644
index 0000000..bbce6b1
--- /dev/null
+++ b/libhardware/modules/consumerir/Android.bp
@@ -0,0 +1,23 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+ name: "consumerir.default",
+ relative_install_path: "hw",
+ srcs: ["consumerir.c"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ ],
+}
diff --git a/libhardware/modules/consumerir/consumerir.c b/libhardware/modules/consumerir/consumerir.c
new file mode 100644
index 0000000..b0ff940
--- /dev/null
+++ b/libhardware/modules/consumerir/consumerir.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "ConsumerIrHal"
+
+#include <errno.h>
+#include <malloc.h>
+#include <string.h>
+#include <cutils/log.h>
+#include <hardware/hardware.h>
+#include <hardware/consumerir.h>
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
+static const consumerir_freq_range_t consumerir_freqs[] = {
+ {.min = 30000, .max = 30000},
+ {.min = 33000, .max = 33000},
+ {.min = 36000, .max = 36000},
+ {.min = 38000, .max = 38000},
+ {.min = 40000, .max = 40000},
+ {.min = 56000, .max = 56000},
+};
+
+static int consumerir_transmit(struct consumerir_device *dev __unused,
+ int carrier_freq, const int pattern[], int pattern_len)
+{
+ int total_time = 0;
+ long i;
+
+ for (i = 0; i < pattern_len; i++)
+ total_time += pattern[i];
+
+ /* simulate the time spent transmitting by sleeping */
+ ALOGD("transmit for %d uS at %d Hz", total_time, carrier_freq);
+ usleep(total_time);
+
+ return 0;
+}
+
+static int consumerir_get_num_carrier_freqs(struct consumerir_device *dev __unused)
+{
+ return ARRAY_SIZE(consumerir_freqs);
+}
+
+static int consumerir_get_carrier_freqs(struct consumerir_device *dev __unused,
+ size_t len, consumerir_freq_range_t *ranges)
+{
+ size_t to_copy = ARRAY_SIZE(consumerir_freqs);
+
+ to_copy = len < to_copy ? len : to_copy;
+ memcpy(ranges, consumerir_freqs, to_copy * sizeof(consumerir_freq_range_t));
+ return to_copy;
+}
+
+static int consumerir_close(hw_device_t *dev)
+{
+ free(dev);
+ return 0;
+}
+
+/*
+ * Generic device handling
+ */
+static int consumerir_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ if (strcmp(name, CONSUMERIR_TRANSMITTER) != 0) {
+ return -EINVAL;
+ }
+ if (device == NULL) {
+ ALOGE("NULL device on open");
+ return -EINVAL;
+ }
+
+ consumerir_device_t *dev = malloc(sizeof(consumerir_device_t));
+ memset(dev, 0, sizeof(consumerir_device_t));
+
+ dev->common.tag = HARDWARE_DEVICE_TAG;
+ dev->common.version = 0;
+ dev->common.module = (struct hw_module_t*) module;
+ dev->common.close = consumerir_close;
+
+ dev->transmit = consumerir_transmit;
+ dev->get_num_carrier_freqs = consumerir_get_num_carrier_freqs;
+ dev->get_carrier_freqs = consumerir_get_carrier_freqs;
+
+ *device = (hw_device_t*) dev;
+ return 0;
+}
+
+static struct hw_module_methods_t consumerir_module_methods = {
+ .open = consumerir_open,
+};
+
+consumerir_module_t HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = CONSUMERIR_MODULE_API_VERSION_1_0,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = CONSUMERIR_HARDWARE_MODULE_ID,
+ .name = "Demo IR HAL",
+ .author = "The Android Open Source Project",
+ .methods = &consumerir_module_methods,
+ },
+};
diff --git a/libhardware/modules/fingerprint/Android.bp b/libhardware/modules/fingerprint/Android.bp
new file mode 100644
index 0000000..a66f9f9
--- /dev/null
+++ b/libhardware/modules/fingerprint/Android.bp
@@ -0,0 +1,20 @@
+// Copyright (C) 2013 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+ name: "fingerprint.default",
+ relative_install_path: "hw",
+ srcs: ["fingerprint.c"],
+ shared_libs: ["liblog"],
+}
diff --git a/libhardware/modules/fingerprint/fingerprint.c b/libhardware/modules/fingerprint/fingerprint.c
new file mode 100644
index 0000000..08b112b
--- /dev/null
+++ b/libhardware/modules/fingerprint/fingerprint.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "FingerprintHal"
+
+#include <errno.h>
+#include <malloc.h>
+#include <string.h>
+#include <cutils/log.h>
+#include <hardware/hardware.h>
+#include <hardware/fingerprint.h>
+
+static int fingerprint_close(hw_device_t *dev)
+{
+ if (dev) {
+ free(dev);
+ return 0;
+ } else {
+ return -1;
+ }
+}
+
+
+static uint64_t fingerprint_pre_enroll(struct fingerprint_device __unused *dev) {
+ return FINGERPRINT_ERROR;
+}
+
+static int fingerprint_enroll(struct fingerprint_device __unused *dev,
+ const hw_auth_token_t __unused *hat,
+ uint32_t __unused gid,
+ uint32_t __unused timeout_sec) {
+ return FINGERPRINT_ERROR;
+}
+
+static uint64_t fingerprint_get_auth_id(struct fingerprint_device __unused *dev) {
+ return FINGERPRINT_ERROR;
+}
+
+static int fingerprint_cancel(struct fingerprint_device __unused *dev) {
+ return FINGERPRINT_ERROR;
+}
+
+static int fingerprint_remove(struct fingerprint_device __unused *dev,
+ uint32_t __unused gid, uint32_t __unused fid) {
+ return FINGERPRINT_ERROR;
+}
+
+static int fingerprint_set_active_group(struct fingerprint_device __unused *dev,
+ uint32_t __unused gid, const char __unused *store_path) {
+ return FINGERPRINT_ERROR;
+}
+
+static int fingerprint_authenticate(struct fingerprint_device __unused *dev,
+ uint64_t __unused operation_id, __unused uint32_t gid) {
+ return FINGERPRINT_ERROR;
+}
+
+static int set_notify_callback(struct fingerprint_device *dev,
+ fingerprint_notify_t notify) {
+ /* Decorate with locks */
+ dev->notify = notify;
+ return FINGERPRINT_ERROR;
+}
+
+static int fingerprint_open(const hw_module_t* module, const char __unused *id,
+ hw_device_t** device)
+{
+ if (device == NULL) {
+ ALOGE("NULL device on open");
+ return -EINVAL;
+ }
+
+ fingerprint_device_t *dev = malloc(sizeof(fingerprint_device_t));
+ memset(dev, 0, sizeof(fingerprint_device_t));
+
+ dev->common.tag = HARDWARE_DEVICE_TAG;
+ dev->common.version = FINGERPRINT_MODULE_API_VERSION_2_0;
+ dev->common.module = (struct hw_module_t*) module;
+ dev->common.close = fingerprint_close;
+
+ dev->pre_enroll = fingerprint_pre_enroll;
+ dev->enroll = fingerprint_enroll;
+ dev->get_authenticator_id = fingerprint_get_auth_id;
+ dev->cancel = fingerprint_cancel;
+ dev->remove = fingerprint_remove;
+ dev->set_active_group = fingerprint_set_active_group;
+ dev->authenticate = fingerprint_authenticate;
+ dev->set_notify = set_notify_callback;
+ dev->notify = NULL;
+
+ *device = (hw_device_t*) dev;
+ return 0;
+}
+
+static struct hw_module_methods_t fingerprint_module_methods = {
+ .open = fingerprint_open,
+};
+
+fingerprint_module_t HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = FINGERPRINT_MODULE_API_VERSION_2_0,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = FINGERPRINT_HARDWARE_MODULE_ID,
+ .name = "Demo Fingerprint HAL",
+ .author = "The Android Open Source Project",
+ .methods = &fingerprint_module_methods,
+ },
+};
diff --git a/libhardware/modules/gralloc/Android.mk b/libhardware/modules/gralloc/Android.mk
new file mode 100644
index 0000000..092e851
--- /dev/null
+++ b/libhardware/modules/gralloc/Android.mk
@@ -0,0 +1,36 @@
+# Copyright (C) 2008 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+LOCAL_PATH := $(call my-dir)
+
+# HAL module implemenation stored in
+# hw/<OVERLAY_HARDWARE_MODULE_ID>.<ro.product.board>.so
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SHARED_LIBRARIES := liblog libcutils
+
+LOCAL_SRC_FILES := \
+ gralloc.cpp \
+ framebuffer.cpp \
+ mapper.cpp
+
+LOCAL_MODULE := gralloc.default
+LOCAL_CFLAGS:= -DLOG_TAG=\"gralloc\" -Wno-missing-field-initializers
+ifeq ($(TARGET_USE_PAN_DISPLAY),true)
+LOCAL_CFLAGS += -DUSE_PAN_DISPLAY=1
+endif
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libhardware/modules/gralloc/framebuffer.cpp b/libhardware/modules/gralloc/framebuffer.cpp
new file mode 100644
index 0000000..eadcdaa
--- /dev/null
+++ b/libhardware/modules/gralloc/framebuffer.cpp
@@ -0,0 +1,361 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <sys/mman.h>
+
+#include <dlfcn.h>
+
+#include <cutils/ashmem.h>
+#include <cutils/log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <cutils/log.h>
+#include <cutils/atomic.h>
+
+#ifdef __ANDROID__
+#include <linux/fb.h>
+#endif
+
+#include "gralloc_priv.h"
+#include "gr.h"
+
+/*****************************************************************************/
+
+// Set TARGET_USE_PAN_DISPLAY to true at compile time if the
+// board uses FBIOPAN_DISPLAY to setup page flipping, otherwise
+// default ioctl to do page-flipping is FBIOPUT_VSCREENINFO.
+#ifndef USE_PAN_DISPLAY
+#define USE_PAN_DISPLAY 0
+#endif
+
+// numbers of buffers for page flipping
+#define NUM_BUFFERS 2
+
+
+enum {
+ PAGE_FLIP = 0x00000001,
+ LOCKED = 0x00000002
+};
+
+struct fb_context_t {
+ framebuffer_device_t device;
+};
+
+/*****************************************************************************/
+
+static int fb_setSwapInterval(struct framebuffer_device_t* dev,
+ int interval)
+{
+ fb_context_t* ctx = (fb_context_t*)dev;
+ if (interval < dev->minSwapInterval || interval > dev->maxSwapInterval)
+ return -EINVAL;
+ // FIXME: implement fb_setSwapInterval
+ return 0;
+}
+
+static int fb_setUpdateRect(struct framebuffer_device_t* dev,
+ int l, int t, int w, int h)
+{
+ if (((w|h) <= 0) || ((l|t)<0))
+ return -EINVAL;
+
+ fb_context_t* ctx = (fb_context_t*)dev;
+ private_module_t* m = reinterpret_cast<private_module_t*>(
+ dev->common.module);
+ m->info.reserved[0] = 0x54445055; // "UPDT";
+ m->info.reserved[1] = (uint16_t)l | ((uint32_t)t << 16);
+ m->info.reserved[2] = (uint16_t)(l+w) | ((uint32_t)(t+h) << 16);
+ return 0;
+}
+
+static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer)
+{
+ if (private_handle_t::validate(buffer) < 0)
+ return -EINVAL;
+
+ fb_context_t* ctx = (fb_context_t*)dev;
+
+ private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(buffer);
+ private_module_t* m = reinterpret_cast<private_module_t*>(
+ dev->common.module);
+
+ if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
+ const size_t offset = hnd->base - m->framebuffer->base;
+ m->info.activate = FB_ACTIVATE_VBL;
+ m->info.yoffset = offset / m->finfo.line_length;
+ if (ioctl(m->framebuffer->fd, FBIOPUT_VSCREENINFO, &m->info) == -1) {
+ ALOGE("FBIOPUT_VSCREENINFO failed");
+ m->base.unlock(&m->base, buffer);
+ return -errno;
+ }
+ m->currentBuffer = buffer;
+
+ } else {
+ // If we can't do the page_flip, just copy the buffer to the front
+ // FIXME: use copybit HAL instead of memcpy
+
+ void* fb_vaddr;
+ void* buffer_vaddr;
+
+ m->base.lock(&m->base, m->framebuffer,
+ GRALLOC_USAGE_SW_WRITE_RARELY,
+ 0, 0, m->info.xres, m->info.yres,
+ &fb_vaddr);
+
+ m->base.lock(&m->base, buffer,
+ GRALLOC_USAGE_SW_READ_RARELY,
+ 0, 0, m->info.xres, m->info.yres,
+ &buffer_vaddr);
+
+ memcpy(fb_vaddr, buffer_vaddr, m->finfo.line_length * m->info.yres);
+
+ m->base.unlock(&m->base, buffer);
+ m->base.unlock(&m->base, m->framebuffer);
+ }
+
+ return 0;
+}
+
+/*****************************************************************************/
+
+int mapFrameBufferLocked(struct private_module_t* module)
+{
+ // already initialized...
+ if (module->framebuffer) {
+ return 0;
+ }
+
+ char const * const device_template[] = {
+ "/dev/graphics/fb%u",
+ "/dev/fb%u",
+ 0 };
+
+ int fd = -1;
+ int i=0;
+ char name[64];
+
+ while ((fd==-1) && device_template[i]) {
+ snprintf(name, 64, device_template[i], 0);
+ fd = open(name, O_RDWR, 0);
+ i++;
+ }
+ if (fd < 0)
+ return -errno;
+
+ struct fb_fix_screeninfo finfo;
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
+ return -errno;
+
+ struct fb_var_screeninfo info;
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
+ return -errno;
+
+ info.reserved[0] = 0;
+ info.reserved[1] = 0;
+ info.reserved[2] = 0;
+ info.xoffset = 0;
+ info.yoffset = 0;
+ info.activate = FB_ACTIVATE_NOW;
+
+ /*
+ * Request NUM_BUFFERS screens (at lest 2 for page flipping)
+ */
+ info.yres_virtual = info.yres * NUM_BUFFERS;
+
+
+ uint32_t flags = PAGE_FLIP;
+#if USE_PAN_DISPLAY
+ if (ioctl(fd, FBIOPAN_DISPLAY, &info) == -1) {
+ ALOGW("FBIOPAN_DISPLAY failed, page flipping not supported");
+#else
+ if (ioctl(fd, FBIOPUT_VSCREENINFO, &info) == -1) {
+ ALOGW("FBIOPUT_VSCREENINFO failed, page flipping not supported");
+#endif
+ info.yres_virtual = info.yres;
+ flags &= ~PAGE_FLIP;
+ }
+
+ if (info.yres_virtual < info.yres * 2) {
+ // we need at least 2 for page-flipping
+ info.yres_virtual = info.yres;
+ flags &= ~PAGE_FLIP;
+ ALOGW("page flipping not supported (yres_virtual=%d, requested=%d)",
+ info.yres_virtual, info.yres*2);
+ }
+
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &info) == -1)
+ return -errno;
+
+ uint64_t refreshQuotient =
+ (
+ uint64_t( info.upper_margin + info.lower_margin + info.yres )
+ * ( info.left_margin + info.right_margin + info.xres )
+ * info.pixclock
+ );
+
+ /* Beware, info.pixclock might be 0 under emulation, so avoid a
+ * division-by-0 here (SIGFPE on ARM) */
+ int refreshRate = refreshQuotient > 0 ? (int)(1000000000000000LLU / refreshQuotient) : 0;
+
+ if (refreshRate == 0) {
+ // bleagh, bad info from the driver
+ refreshRate = 60*1000; // 60 Hz
+ }
+
+ if (int(info.width) <= 0 || int(info.height) <= 0) {
+ // the driver doesn't return that information
+ // default to 160 dpi
+ info.width = ((info.xres * 25.4f)/160.0f + 0.5f);
+ info.height = ((info.yres * 25.4f)/160.0f + 0.5f);
+ }
+
+ float xdpi = (info.xres * 25.4f) / info.width;
+ float ydpi = (info.yres * 25.4f) / info.height;
+ float fps = refreshRate / 1000.0f;
+
+ ALOGI( "using (fd=%d)\n"
+ "id = %s\n"
+ "xres = %d px\n"
+ "yres = %d px\n"
+ "xres_virtual = %d px\n"
+ "yres_virtual = %d px\n"
+ "bpp = %d\n"
+ "r = %2u:%u\n"
+ "g = %2u:%u\n"
+ "b = %2u:%u\n",
+ fd,
+ finfo.id,
+ info.xres,
+ info.yres,
+ info.xres_virtual,
+ info.yres_virtual,
+ info.bits_per_pixel,
+ info.red.offset, info.red.length,
+ info.green.offset, info.green.length,
+ info.blue.offset, info.blue.length
+ );
+
+ ALOGI( "width = %d mm (%f dpi)\n"
+ "height = %d mm (%f dpi)\n"
+ "refresh rate = %.2f Hz\n",
+ info.width, xdpi,
+ info.height, ydpi,
+ fps
+ );
+
+
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
+ return -errno;
+
+ if (finfo.smem_len <= 0)
+ return -errno;
+
+
+ module->flags = flags;
+ module->info = info;
+ module->finfo = finfo;
+ module->xdpi = xdpi;
+ module->ydpi = ydpi;
+ module->fps = fps;
+
+ /*
+ * map the framebuffer
+ */
+
+ int err;
+ size_t fbSize = roundUpToPageSize(finfo.line_length * info.yres_virtual);
+ module->framebuffer = new private_handle_t(dup(fd), fbSize, 0);
+
+ module->numBuffers = info.yres_virtual / info.yres;
+ module->bufferMask = 0;
+
+ void* vaddr = mmap(0, fbSize, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ if (vaddr == MAP_FAILED) {
+ ALOGE("Error mapping the framebuffer (%s)", strerror(errno));
+ return -errno;
+ }
+ module->framebuffer->base = intptr_t(vaddr);
+ memset(vaddr, 0, fbSize);
+ return 0;
+}
+
+static int mapFrameBuffer(struct private_module_t* module)
+{
+ pthread_mutex_lock(&module->lock);
+ int err = mapFrameBufferLocked(module);
+ pthread_mutex_unlock(&module->lock);
+ return err;
+}
+
+/*****************************************************************************/
+
+static int fb_close(struct hw_device_t *dev)
+{
+ fb_context_t* ctx = (fb_context_t*)dev;
+ if (ctx) {
+ free(ctx);
+ }
+ return 0;
+}
+
+int fb_device_open(hw_module_t const* module, const char* name,
+ hw_device_t** device)
+{
+ int status = -EINVAL;
+ if (!strcmp(name, GRALLOC_HARDWARE_FB0)) {
+ /* initialize our state here */
+ fb_context_t *dev = (fb_context_t*)malloc(sizeof(*dev));
+ memset(dev, 0, sizeof(*dev));
+
+ /* initialize the procs */
+ dev->device.common.tag = HARDWARE_DEVICE_TAG;
+ dev->device.common.version = 0;
+ dev->device.common.module = const_cast<hw_module_t*>(module);
+ dev->device.common.close = fb_close;
+ dev->device.setSwapInterval = fb_setSwapInterval;
+ dev->device.post = fb_post;
+ dev->device.setUpdateRect = 0;
+
+ private_module_t* m = (private_module_t*)module;
+ status = mapFrameBuffer(m);
+ if (status >= 0) {
+ int stride = m->finfo.line_length / (m->info.bits_per_pixel >> 3);
+ int format = (m->info.bits_per_pixel == 32)
+ ? (m->info.red.offset ? HAL_PIXEL_FORMAT_BGRA_8888 : HAL_PIXEL_FORMAT_RGBX_8888)
+ : HAL_PIXEL_FORMAT_RGB_565;
+ const_cast<uint32_t&>(dev->device.flags) = 0;
+ const_cast<uint32_t&>(dev->device.width) = m->info.xres;
+ const_cast<uint32_t&>(dev->device.height) = m->info.yres;
+ const_cast<int&>(dev->device.stride) = stride;
+ const_cast<int&>(dev->device.format) = format;
+ const_cast<float&>(dev->device.xdpi) = m->xdpi;
+ const_cast<float&>(dev->device.ydpi) = m->ydpi;
+ const_cast<float&>(dev->device.fps) = m->fps;
+ const_cast<int&>(dev->device.minSwapInterval) = 1;
+ const_cast<int&>(dev->device.maxSwapInterval) = 1;
+ *device = &dev->device.common;
+ }
+ }
+ return status;
+}
diff --git a/libhardware/modules/gralloc/gr.h b/libhardware/modules/gralloc/gr.h
new file mode 100644
index 0000000..ac7e967
--- /dev/null
+++ b/libhardware/modules/gralloc/gr.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef GR_H_
+#define GR_H_
+
+#include <stdint.h>
+#include <sys/user.h>
+#include <limits.h>
+#include <sys/cdefs.h>
+#include <hardware/gralloc.h>
+#include <pthread.h>
+#include <errno.h>
+
+#include <cutils/native_handle.h>
+
+/*****************************************************************************/
+
+struct private_module_t;
+struct private_handle_t;
+
+inline size_t roundUpToPageSize(size_t x) {
+ return (x + (PAGE_SIZE-1)) & ~(PAGE_SIZE-1);
+}
+
+int mapFrameBufferLocked(struct private_module_t* module);
+int terminateBuffer(gralloc_module_t const* module, private_handle_t* hnd);
+int mapBuffer(gralloc_module_t const* module, private_handle_t* hnd);
+
+/*****************************************************************************/
+
+class Locker {
+ pthread_mutex_t mutex;
+public:
+ class Autolock {
+ Locker& locker;
+ public:
+ inline explicit Autolock(Locker& locker) : locker(locker) { locker.lock(); }
+ inline ~Autolock() { locker.unlock(); }
+ };
+ inline Locker() { pthread_mutex_init(&mutex, 0); }
+ inline ~Locker() { pthread_mutex_destroy(&mutex); }
+ inline void lock() { pthread_mutex_lock(&mutex); }
+ inline void unlock() { pthread_mutex_unlock(&mutex); }
+};
+
+#endif /* GR_H_ */
diff --git a/libhardware/modules/gralloc/gralloc.cpp b/libhardware/modules/gralloc/gralloc.cpp
new file mode 100644
index 0000000..a9fbc80
--- /dev/null
+++ b/libhardware/modules/gralloc/gralloc.cpp
@@ -0,0 +1,310 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <limits.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#include <cutils/ashmem.h>
+#include <cutils/log.h>
+#include <cutils/atomic.h>
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+
+#include "gralloc_priv.h"
+#include "gr.h"
+
+/*****************************************************************************/
+
+struct gralloc_context_t {
+ alloc_device_t device;
+ /* our private data here */
+};
+
+static int gralloc_alloc_buffer(alloc_device_t* dev,
+ size_t size, int usage, buffer_handle_t* pHandle);
+
+/*****************************************************************************/
+
+int fb_device_open(const hw_module_t* module, const char* name,
+ hw_device_t** device);
+
+static int gralloc_device_open(const hw_module_t* module, const char* name,
+ hw_device_t** device);
+
+extern int gralloc_lock(gralloc_module_t const* module,
+ buffer_handle_t handle, int usage,
+ int l, int t, int w, int h,
+ void** vaddr);
+
+extern int gralloc_unlock(gralloc_module_t const* module,
+ buffer_handle_t handle);
+
+extern int gralloc_register_buffer(gralloc_module_t const* module,
+ buffer_handle_t handle);
+
+extern int gralloc_unregister_buffer(gralloc_module_t const* module,
+ buffer_handle_t handle);
+
+/*****************************************************************************/
+
+static struct hw_module_methods_t gralloc_module_methods = {
+ .open = gralloc_device_open
+};
+
+struct private_module_t HAL_MODULE_INFO_SYM = {
+ .base = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .version_major = 1,
+ .version_minor = 0,
+ .id = GRALLOC_HARDWARE_MODULE_ID,
+ .name = "Graphics Memory Allocator Module",
+ .author = "The Android Open Source Project",
+ .methods = &gralloc_module_methods
+ },
+ .registerBuffer = gralloc_register_buffer,
+ .unregisterBuffer = gralloc_unregister_buffer,
+ .lock = gralloc_lock,
+ .unlock = gralloc_unlock,
+ },
+ .framebuffer = 0,
+ .flags = 0,
+ .numBuffers = 0,
+ .bufferMask = 0,
+ .lock = PTHREAD_MUTEX_INITIALIZER,
+ .currentBuffer = 0,
+};
+
+/*****************************************************************************/
+
+static int gralloc_alloc_framebuffer_locked(alloc_device_t* dev,
+ size_t size, int usage, buffer_handle_t* pHandle)
+{
+ private_module_t* m = reinterpret_cast<private_module_t*>(
+ dev->common.module);
+
+ // allocate the framebuffer
+ if (m->framebuffer == NULL) {
+ // initialize the framebuffer, the framebuffer is mapped once
+ // and forever.
+ int err = mapFrameBufferLocked(m);
+ if (err < 0) {
+ return err;
+ }
+ }
+
+ const uint32_t bufferMask = m->bufferMask;
+ const uint32_t numBuffers = m->numBuffers;
+ const size_t bufferSize = m->finfo.line_length * m->info.yres;
+ if (numBuffers == 1) {
+ // If we have only one buffer, we never use page-flipping. Instead,
+ // we return a regular buffer which will be memcpy'ed to the main
+ // screen when post is called.
+ int newUsage = (usage & ~GRALLOC_USAGE_HW_FB) | GRALLOC_USAGE_HW_2D;
+ return gralloc_alloc_buffer(dev, bufferSize, newUsage, pHandle);
+ }
+
+ if (bufferMask >= ((1LU<<numBuffers)-1)) {
+ // We ran out of buffers.
+ return -ENOMEM;
+ }
+
+ // create a "fake" handles for it
+ intptr_t vaddr = intptr_t(m->framebuffer->base);
+ private_handle_t* hnd = new private_handle_t(dup(m->framebuffer->fd), size,
+ private_handle_t::PRIV_FLAGS_FRAMEBUFFER);
+
+ // find a free slot
+ for (uint32_t i=0 ; i<numBuffers ; i++) {
+ if ((bufferMask & (1LU<<i)) == 0) {
+ m->bufferMask |= (1LU<<i);
+ break;
+ }
+ vaddr += bufferSize;
+ }
+
+ hnd->base = vaddr;
+ hnd->offset = vaddr - intptr_t(m->framebuffer->base);
+ *pHandle = hnd;
+
+ return 0;
+}
+
+static int gralloc_alloc_framebuffer(alloc_device_t* dev,
+ size_t size, int usage, buffer_handle_t* pHandle)
+{
+ private_module_t* m = reinterpret_cast<private_module_t*>(
+ dev->common.module);
+ pthread_mutex_lock(&m->lock);
+ int err = gralloc_alloc_framebuffer_locked(dev, size, usage, pHandle);
+ pthread_mutex_unlock(&m->lock);
+ return err;
+}
+
+static int gralloc_alloc_buffer(alloc_device_t* dev,
+ size_t size, int /*usage*/, buffer_handle_t* pHandle)
+{
+ int err = 0;
+ int fd = -1;
+
+ size = roundUpToPageSize(size);
+
+ fd = ashmem_create_region("gralloc-buffer", size);
+ if (fd < 0) {
+ ALOGE("couldn't create ashmem (%s)", strerror(-errno));
+ err = -errno;
+ }
+
+ if (err == 0) {
+ private_handle_t* hnd = new private_handle_t(fd, size, 0);
+ gralloc_module_t* module = reinterpret_cast<gralloc_module_t*>(
+ dev->common.module);
+ err = mapBuffer(module, hnd);
+ if (err == 0) {
+ *pHandle = hnd;
+ }
+ }
+
+ ALOGE_IF(err, "gralloc failed err=%s", strerror(-err));
+
+ return err;
+}
+
+/*****************************************************************************/
+
+static int gralloc_alloc(alloc_device_t* dev,
+ int w, int h, int format, int usage,
+ buffer_handle_t* pHandle, int* pStride)
+{
+ if (!pHandle || !pStride)
+ return -EINVAL;
+
+ size_t size, stride;
+
+ int align = 4;
+ int bpp = 0;
+ switch (format) {
+ case HAL_PIXEL_FORMAT_RGBA_8888:
+ case HAL_PIXEL_FORMAT_RGBX_8888:
+ case HAL_PIXEL_FORMAT_BGRA_8888:
+ bpp = 4;
+ break;
+ case HAL_PIXEL_FORMAT_RGB_888:
+ bpp = 3;
+ break;
+ case HAL_PIXEL_FORMAT_RGB_565:
+ case HAL_PIXEL_FORMAT_RAW16:
+ bpp = 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+ size_t bpr = (w*bpp + (align-1)) & ~(align-1);
+ size = bpr * h;
+ stride = bpr / bpp;
+
+ int err;
+ if (usage & GRALLOC_USAGE_HW_FB) {
+ err = gralloc_alloc_framebuffer(dev, size, usage, pHandle);
+ } else {
+ err = gralloc_alloc_buffer(dev, size, usage, pHandle);
+ }
+
+ if (err < 0) {
+ return err;
+ }
+
+ *pStride = stride;
+ return 0;
+}
+
+static int gralloc_free(alloc_device_t* dev,
+ buffer_handle_t handle)
+{
+ if (private_handle_t::validate(handle) < 0)
+ return -EINVAL;
+
+ private_handle_t const* hnd = reinterpret_cast<private_handle_t const*>(handle);
+ if (hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
+ // free this buffer
+ private_module_t* m = reinterpret_cast<private_module_t*>(
+ dev->common.module);
+ const size_t bufferSize = m->finfo.line_length * m->info.yres;
+ int index = (hnd->base - m->framebuffer->base) / bufferSize;
+ m->bufferMask &= ~(1<<index);
+ } else {
+ gralloc_module_t* module = reinterpret_cast<gralloc_module_t*>(
+ dev->common.module);
+ terminateBuffer(module, const_cast<private_handle_t*>(hnd));
+ }
+
+ close(hnd->fd);
+ delete hnd;
+ return 0;
+}
+
+/*****************************************************************************/
+
+static int gralloc_close(struct hw_device_t *dev)
+{
+ gralloc_context_t* ctx = reinterpret_cast<gralloc_context_t*>(dev);
+ if (ctx) {
+ /* TODO: keep a list of all buffer_handle_t created, and free them
+ * all here.
+ */
+ free(ctx);
+ }
+ return 0;
+}
+
+int gralloc_device_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ int status = -EINVAL;
+ if (!strcmp(name, GRALLOC_HARDWARE_GPU0)) {
+ gralloc_context_t *dev;
+ dev = (gralloc_context_t*)malloc(sizeof(*dev));
+
+ /* initialize our state here */
+ memset(dev, 0, sizeof(*dev));
+
+ /* initialize the procs */
+ dev->device.common.tag = HARDWARE_DEVICE_TAG;
+ dev->device.common.version = 0;
+ dev->device.common.module = const_cast<hw_module_t*>(module);
+ dev->device.common.close = gralloc_close;
+
+ dev->device.alloc = gralloc_alloc;
+ dev->device.free = gralloc_free;
+
+ *device = &dev->device.common;
+ status = 0;
+ } else {
+ status = fb_device_open(module, name, device);
+ }
+ return status;
+}
diff --git a/libhardware/modules/gralloc/gralloc_priv.h b/libhardware/modules/gralloc/gralloc_priv.h
new file mode 100644
index 0000000..2cd1007
--- /dev/null
+++ b/libhardware/modules/gralloc/gralloc_priv.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef GRALLOC_PRIV_H_
+#define GRALLOC_PRIV_H_
+
+#include <stdint.h>
+#include <limits.h>
+#include <sys/cdefs.h>
+#include <hardware/gralloc.h>
+#include <pthread.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <cutils/native_handle.h>
+
+#include <linux/fb.h>
+
+/*****************************************************************************/
+
+struct private_module_t;
+struct private_handle_t;
+
+struct private_module_t {
+ gralloc_module_t base;
+
+ private_handle_t* framebuffer;
+ uint32_t flags;
+ uint32_t numBuffers;
+ uint32_t bufferMask;
+ pthread_mutex_t lock;
+ buffer_handle_t currentBuffer;
+ int pmem_master;
+ void* pmem_master_base;
+
+ struct fb_var_screeninfo info;
+ struct fb_fix_screeninfo finfo;
+ float xdpi;
+ float ydpi;
+ float fps;
+};
+
+/*****************************************************************************/
+
+#ifdef __cplusplus
+struct private_handle_t : public native_handle {
+#else
+struct private_handle_t {
+ struct native_handle nativeHandle;
+#endif
+
+ enum {
+ PRIV_FLAGS_FRAMEBUFFER = 0x00000001
+ };
+
+ // file-descriptors
+ int fd;
+ // ints
+ int magic;
+ int flags;
+ int size;
+ int offset;
+
+ // FIXME: the attributes below should be out-of-line
+ uint64_t base __attribute__((aligned(8)));
+ int pid;
+
+#ifdef __cplusplus
+ static inline int sNumInts() {
+ return (((sizeof(private_handle_t) - sizeof(native_handle_t))/sizeof(int)) - sNumFds);
+ }
+ static const int sNumFds = 1;
+ static const int sMagic = 0x3141592;
+
+ private_handle_t(int fd, int size, int flags) :
+ fd(fd), magic(sMagic), flags(flags), size(size), offset(0),
+ base(0), pid(getpid())
+ {
+ version = sizeof(native_handle);
+ numInts = sNumInts();
+ numFds = sNumFds;
+ }
+ ~private_handle_t() {
+ magic = 0;
+ }
+
+ static int validate(const native_handle* h) {
+ const private_handle_t* hnd = (const private_handle_t*)h;
+ if (!h || h->version != sizeof(native_handle) ||
+ h->numInts != sNumInts() || h->numFds != sNumFds ||
+ hnd->magic != sMagic)
+ {
+ ALOGE("invalid gralloc handle (at %p)", h);
+ return -EINVAL;
+ }
+ return 0;
+ }
+#endif
+};
+
+#endif /* GRALLOC_PRIV_H_ */
diff --git a/libhardware/modules/gralloc/mapper.cpp b/libhardware/modules/gralloc/mapper.cpp
new file mode 100644
index 0000000..20d9841
--- /dev/null
+++ b/libhardware/modules/gralloc/mapper.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <limits.h>
+#include <errno.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <cutils/log.h>
+#include <cutils/atomic.h>
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+
+#include "gralloc_priv.h"
+
+
+/*****************************************************************************/
+
+static int gralloc_map(gralloc_module_t const* /*module*/,
+ buffer_handle_t handle,
+ void** vaddr)
+{
+ private_handle_t* hnd = (private_handle_t*)handle;
+ if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) {
+ size_t size = hnd->size;
+ void* mappedAddress = mmap(0, size,
+ PROT_READ|PROT_WRITE, MAP_SHARED, hnd->fd, 0);
+ if (mappedAddress == MAP_FAILED) {
+ ALOGE("Could not mmap %s", strerror(errno));
+ return -errno;
+ }
+ hnd->base = uintptr_t(mappedAddress) + hnd->offset;
+ //ALOGD("gralloc_map() succeeded fd=%d, off=%d, size=%d, vaddr=%p",
+ // hnd->fd, hnd->offset, hnd->size, mappedAddress);
+ }
+ *vaddr = (void*)hnd->base;
+ return 0;
+}
+
+static int gralloc_unmap(gralloc_module_t const* /*module*/,
+ buffer_handle_t handle)
+{
+ private_handle_t* hnd = (private_handle_t*)handle;
+ if (!(hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER)) {
+ void* base = (void*)hnd->base;
+ size_t size = hnd->size;
+ //ALOGD("unmapping from %p, size=%d", base, size);
+ if (munmap(base, size) < 0) {
+ ALOGE("Could not unmap %s", strerror(errno));
+ }
+ }
+ hnd->base = 0;
+ return 0;
+}
+
+/*****************************************************************************/
+
+int gralloc_register_buffer(gralloc_module_t const* module,
+ buffer_handle_t handle)
+{
+ if (private_handle_t::validate(handle) < 0)
+ return -EINVAL;
+
+ // *** WARNING WARNING WARNING ***
+ //
+ // If a buffer handle is passed from the process that allocated it to a
+ // different process, and then back to the allocator process, we will
+ // create a second mapping of the buffer. If the process reads and writes
+ // through both mappings, normal memory ordering guarantees may be
+ // violated, depending on the processor cache implementation*.
+ //
+ // If you are deriving a new gralloc implementation from this code, don't
+ // do this. A "real" gralloc should provide a single reference-counted
+ // mapping for each buffer in a process.
+ //
+ // In the current system, there is one case that needs a buffer to be
+ // registered in the same process that allocated it. The SurfaceFlinger
+ // process acts as the IGraphicBufferAlloc Binder provider, so all gralloc
+ // allocations happen in its process. After returning the buffer handle to
+ // the IGraphicBufferAlloc client, SurfaceFlinger free's its handle to the
+ // buffer (unmapping it from the SurfaceFlinger process). If
+ // SurfaceFlinger later acts as the producer end of the buffer queue the
+ // buffer belongs to, it will get a new handle to the buffer in response
+ // to IGraphicBufferProducer::requestBuffer(). Like any buffer handle
+ // received through Binder, the SurfaceFlinger process will register it.
+ // Since it already freed its original handle, it will only end up with
+ // one mapping to the buffer and there will be no problem.
+ //
+ // Currently SurfaceFlinger only acts as a buffer producer for a remote
+ // consumer when taking screenshots and when using virtual displays.
+ //
+ // Eventually, each application should be allowed to make its own gralloc
+ // allocations, solving the problem. Also, this ashmem-based gralloc
+ // should go away, replaced with a real ion-based gralloc.
+ //
+ // * Specifically, associative virtually-indexed caches are likely to have
+ // problems. Most modern L1 caches fit that description.
+
+ private_handle_t* hnd = (private_handle_t*)handle;
+ ALOGD_IF(hnd->pid == getpid(),
+ "Registering a buffer in the process that created it. "
+ "This may cause memory ordering problems.");
+
+ void *vaddr;
+ return gralloc_map(module, handle, &vaddr);
+}
+
+int gralloc_unregister_buffer(gralloc_module_t const* module,
+ buffer_handle_t handle)
+{
+ if (private_handle_t::validate(handle) < 0)
+ return -EINVAL;
+
+ private_handle_t* hnd = (private_handle_t*)handle;
+ if (hnd->base)
+ gralloc_unmap(module, handle);
+
+ return 0;
+}
+
+int mapBuffer(gralloc_module_t const* module,
+ private_handle_t* hnd)
+{
+ void* vaddr;
+ return gralloc_map(module, hnd, &vaddr);
+}
+
+int terminateBuffer(gralloc_module_t const* module,
+ private_handle_t* hnd)
+{
+ if (hnd->base) {
+ // this buffer was mapped, unmap it now
+ gralloc_unmap(module, hnd);
+ }
+
+ return 0;
+}
+
+int gralloc_lock(gralloc_module_t const* /*module*/,
+ buffer_handle_t handle, int /*usage*/,
+ int /*l*/, int /*t*/, int /*w*/, int /*h*/,
+ void** vaddr)
+{
+ // this is called when a buffer is being locked for software
+ // access. in thin implementation we have nothing to do since
+ // not synchronization with the h/w is needed.
+ // typically this is used to wait for the h/w to finish with
+ // this buffer if relevant. the data cache may need to be
+ // flushed or invalidated depending on the usage bits and the
+ // hardware.
+
+ if (private_handle_t::validate(handle) < 0)
+ return -EINVAL;
+
+ private_handle_t* hnd = (private_handle_t*)handle;
+ *vaddr = (void*)hnd->base;
+ return 0;
+}
+
+int gralloc_unlock(gralloc_module_t const* /*module*/,
+ buffer_handle_t handle)
+{
+ // we're done with a software buffer. nothing to do in this
+ // implementation. typically this is used to flush the data cache.
+
+ if (private_handle_t::validate(handle) < 0)
+ return -EINVAL;
+ return 0;
+}
diff --git a/libhardware/modules/hwcomposer/Android.mk b/libhardware/modules/hwcomposer/Android.mk
new file mode 100644
index 0000000..35c0fae
--- /dev/null
+++ b/libhardware/modules/hwcomposer/Android.mk
@@ -0,0 +1,28 @@
+# Copyright (C) 2008 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+LOCAL_PATH := $(call my-dir)
+
+# HAL module implemenation stored in
+# hw/<OVERLAY_HARDWARE_MODULE_ID>.<ro.product.board>.so
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SHARED_LIBRARIES := liblog libEGL
+LOCAL_SRC_FILES := hwcomposer.cpp
+LOCAL_MODULE := hwcomposer.default
+LOCAL_CFLAGS:= -DLOG_TAG=\"hwcomposer\"
+LOCAL_MODULE_TAGS := optional
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libhardware/modules/hwcomposer/README.android b/libhardware/modules/hwcomposer/README.android
new file mode 100644
index 0000000..4aa7203
--- /dev/null
+++ b/libhardware/modules/hwcomposer/README.android
@@ -0,0 +1,3 @@
+
+Skeleton for the "hwcomposer" HAL module.
+
diff --git a/libhardware/modules/hwcomposer/hwcomposer.cpp b/libhardware/modules/hwcomposer/hwcomposer.cpp
new file mode 100644
index 0000000..9d1aa34
--- /dev/null
+++ b/libhardware/modules/hwcomposer/hwcomposer.cpp
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hardware/hardware.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <malloc.h>
+
+#include <cutils/log.h>
+#include <cutils/atomic.h>
+
+#include <hardware/hwcomposer.h>
+
+#include <EGL/egl.h>
+
+/*****************************************************************************/
+
+struct hwc_context_t {
+ hwc_composer_device_1_t device;
+ /* our private state goes below here */
+};
+
+static int hwc_device_open(const struct hw_module_t* module, const char* name,
+ struct hw_device_t** device);
+
+static struct hw_module_methods_t hwc_module_methods = {
+ open: hwc_device_open
+};
+
+hwc_module_t HAL_MODULE_INFO_SYM = {
+ common: {
+ tag: HARDWARE_MODULE_TAG,
+ version_major: 1,
+ version_minor: 0,
+ id: HWC_HARDWARE_MODULE_ID,
+ name: "Sample hwcomposer module",
+ author: "The Android Open Source Project",
+ methods: &hwc_module_methods,
+ }
+};
+
+/*****************************************************************************/
+
+static void dump_layer(hwc_layer_1_t const* l) {
+ ALOGD("\ttype=%d, flags=%08x, handle=%p, tr=%02x, blend=%04x, {%d,%d,%d,%d}, {%d,%d,%d,%d}",
+ l->compositionType, l->flags, l->handle, l->transform, l->blending,
+ l->sourceCrop.left,
+ l->sourceCrop.top,
+ l->sourceCrop.right,
+ l->sourceCrop.bottom,
+ l->displayFrame.left,
+ l->displayFrame.top,
+ l->displayFrame.right,
+ l->displayFrame.bottom);
+}
+
+static int hwc_prepare(hwc_composer_device_1_t *dev,
+ size_t numDisplays, hwc_display_contents_1_t** displays) {
+ if (displays && (displays[0]->flags & HWC_GEOMETRY_CHANGED)) {
+ for (size_t i=0 ; i<displays[0]->numHwLayers ; i++) {
+ //dump_layer(&list->hwLayers[i]);
+ displays[0]->hwLayers[i].compositionType = HWC_FRAMEBUFFER;
+ }
+ }
+ return 0;
+}
+
+static int hwc_set(hwc_composer_device_1_t *dev,
+ size_t numDisplays, hwc_display_contents_1_t** displays)
+{
+ //for (size_t i=0 ; i<list->numHwLayers ; i++) {
+ // dump_layer(&list->hwLayers[i]);
+ //}
+
+ EGLBoolean sucess = eglSwapBuffers((EGLDisplay)displays[0]->dpy,
+ (EGLSurface)displays[0]->sur);
+ if (!sucess) {
+ return HWC_EGL_ERROR;
+ }
+ return 0;
+}
+
+static int hwc_device_close(struct hw_device_t *dev)
+{
+ struct hwc_context_t* ctx = (struct hwc_context_t*)dev;
+ if (ctx) {
+ free(ctx);
+ }
+ return 0;
+}
+
+/*****************************************************************************/
+
+static int hwc_device_open(const struct hw_module_t* module, const char* name,
+ struct hw_device_t** device)
+{
+ int status = -EINVAL;
+ if (!strcmp(name, HWC_HARDWARE_COMPOSER)) {
+ struct hwc_context_t *dev;
+ dev = (hwc_context_t*)malloc(sizeof(*dev));
+
+ /* initialize our state here */
+ memset(dev, 0, sizeof(*dev));
+
+ /* initialize the procs */
+ dev->device.common.tag = HARDWARE_DEVICE_TAG;
+ dev->device.common.version = HWC_DEVICE_API_VERSION_1_0;
+ dev->device.common.module = const_cast<hw_module_t*>(module);
+ dev->device.common.close = hwc_device_close;
+
+ dev->device.prepare = hwc_prepare;
+ dev->device.set = hwc_set;
+
+ *device = &dev->device.common;
+ status = 0;
+ }
+ return status;
+}
diff --git a/libhardware/modules/input/Android.mk b/libhardware/modules/input/Android.mk
new file mode 100644
index 0000000..3011b2e
--- /dev/null
+++ b/libhardware/modules/input/Android.mk
@@ -0,0 +1,19 @@
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/libhardware/modules/input/evdev/Android.mk b/libhardware/modules/input/evdev/Android.mk
new file mode 100644
index 0000000..d3c49e7
--- /dev/null
+++ b/libhardware/modules/input/evdev/Android.mk
@@ -0,0 +1,57 @@
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+# Evdev module implementation
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ InputHub.cpp \
+ InputDevice.cpp \
+ InputDeviceManager.cpp \
+ InputHost.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libhardware_legacy \
+ liblog \
+ libutils
+
+LOCAL_CLANG := true
+LOCAL_CPPFLAGS += -std=c++14 -Wno-unused-parameter
+
+LOCAL_MODULE := libinput_evdev
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
+
+# HAL module
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := input.evdev.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+
+LOCAL_SRC_FILES := \
+ EvdevModule.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libinput_evdev \
+ liblog
+
+LOCAL_CLANG := true
+LOCAL_CPPFLAGS += -std=c++14 -Wno-unused-parameter
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libhardware/modules/input/evdev/EvdevModule.cpp b/libhardware/modules/input/evdev/EvdevModule.cpp
new file mode 100644
index 0000000..e9c8222
--- /dev/null
+++ b/libhardware/modules/input/evdev/EvdevModule.cpp
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "EvdevModule"
+
+#include <memory>
+#include <string>
+#include <thread>
+
+#include <assert.h>
+#include <hardware/hardware.h>
+#include <hardware/input.h>
+
+#include <utils/Log.h>
+
+#include "InputHub.h"
+#include "InputDeviceManager.h"
+#include "InputHost.h"
+
+namespace android {
+
+static const char kDevInput[] = "/dev/input";
+
+class EvdevModule {
+public:
+ explicit EvdevModule(InputHost inputHost);
+
+ void init();
+ void notifyReport(input_report_t* r);
+
+private:
+ void loop();
+
+ InputHost mInputHost;
+ std::shared_ptr<InputDeviceManager> mDeviceManager;
+ std::shared_ptr<InputHub> mInputHub;
+ std::thread mPollThread;
+};
+
+static std::shared_ptr<EvdevModule> gEvdevModule;
+
+EvdevModule::EvdevModule(InputHost inputHost) :
+ mInputHost(inputHost),
+ mDeviceManager(std::make_shared<InputDeviceManager>()),
+ mInputHub(std::make_shared<InputHub>(mDeviceManager)) {}
+
+void EvdevModule::init() {
+ ALOGV("%s", __func__);
+
+ mInputHub->registerDevicePath(kDevInput);
+ mPollThread = std::thread(&EvdevModule::loop, this);
+}
+
+void EvdevModule::notifyReport(input_report_t* r) {
+ ALOGV("%s", __func__);
+
+ // notifyReport() will be called from an arbitrary thread within the input
+ // host. Since InputHub is not threadsafe, this is how I expect this to
+ // work:
+ // * notifyReport() will queue up the output report in the EvdevModule and
+ // call wake() on the InputHub.
+ // * In the main loop thread, after returning from poll(), the queue will
+ // be processed with any pending work.
+}
+
+void EvdevModule::loop() {
+ ALOGV("%s", __func__);
+ for (;;) {
+ mInputHub->poll();
+
+ // TODO: process any pending work, like notify reports
+ }
+}
+
+extern "C" {
+
+static int dummy_open(const hw_module_t __unused *module, const char __unused *id,
+ hw_device_t __unused **device) {
+ ALOGW("open not implemented in the input HAL!");
+ return 0;
+}
+
+static void input_init(const input_module_t* module,
+ input_host_t* host, input_host_callbacks_t cb) {
+ LOG_ALWAYS_FATAL_IF(strcmp(module->common.id, INPUT_HARDWARE_MODULE_ID) != 0);
+ InputHost inputHost = {host, cb};
+ gEvdevModule = std::make_shared<EvdevModule>(inputHost);
+ gEvdevModule->init();
+}
+
+static void input_notify_report(const input_module_t* module, input_report_t* r) {
+ LOG_ALWAYS_FATAL_IF(strcmp(module->common.id, INPUT_HARDWARE_MODULE_ID) != 0);
+ LOG_ALWAYS_FATAL_IF(gEvdevModule == nullptr);
+ gEvdevModule->notifyReport(r);
+}
+
+static struct hw_module_methods_t input_module_methods = {
+ .open = dummy_open,
+};
+
+input_module_t HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = INPUT_MODULE_API_VERSION_1_0,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = INPUT_HARDWARE_MODULE_ID,
+ .name = "Input evdev HAL",
+ .author = "The Android Open Source Project",
+ .methods = &input_module_methods,
+ .dso = NULL,
+ .reserved = {0},
+ },
+
+ .init = input_init,
+ .notify_report = input_notify_report,
+};
+
+} // extern "C"
+
+} // namespace input
diff --git a/libhardware/modules/input/evdev/InputDevice.cpp b/libhardware/modules/input/evdev/InputDevice.cpp
new file mode 100644
index 0000000..c0b59d7
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputDevice.cpp
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputDevice"
+#define LOG_NDEBUG 0
+
+#include <linux/input.h>
+
+#define __STDC_FORMAT_MACROS
+#include <cinttypes>
+#include <string>
+
+#include <utils/Log.h>
+#include <utils/Timers.h>
+
+#include "InputHub.h"
+#include "InputDevice.h"
+
+#define MSC_ANDROID_TIME_SEC 0x6
+#define MSC_ANDROID_TIME_USEC 0x7
+
+namespace android {
+
+EvdevDevice::EvdevDevice(std::shared_ptr<InputDeviceNode> node) :
+ mDeviceNode(node) {}
+
+void EvdevDevice::processInput(InputEvent& event, nsecs_t currentTime) {
+ std::string log;
+ log.append("---InputEvent for device %s---\n");
+ log.append(" when: %" PRId64 "\n");
+ log.append(" type: %d\n");
+ log.append(" code: %d\n");
+ log.append(" value: %d\n");
+ ALOGV(log.c_str(), mDeviceNode->getPath().c_str(), event.when, event.type, event.code,
+ event.value);
+
+ if (event.type == EV_MSC) {
+ if (event.code == MSC_ANDROID_TIME_SEC) {
+ mOverrideSec = event.value;
+ } else if (event.code == MSC_ANDROID_TIME_USEC) {
+ mOverrideUsec = event.value;
+ }
+ return;
+ }
+
+ if (mOverrideSec || mOverrideUsec) {
+ event.when = s2ns(mOverrideSec) + us2ns(mOverrideUsec);
+ ALOGV("applied override time %d.%06d", mOverrideSec, mOverrideUsec);
+
+ if (event.type == EV_SYN && event.code == SYN_REPORT) {
+ mOverrideSec = 0;
+ mOverrideUsec = 0;
+ }
+ }
+
+ // Bug 7291243: Add a guard in case the kernel generates timestamps
+ // that appear to be far into the future because they were generated
+ // using the wrong clock source.
+ //
+ // This can happen because when the input device is initially opened
+ // it has a default clock source of CLOCK_REALTIME. Any input events
+ // enqueued right after the device is opened will have timestamps
+ // generated using CLOCK_REALTIME. We later set the clock source
+ // to CLOCK_MONOTONIC but it is already too late.
+ //
+ // Invalid input event timestamps can result in ANRs, crashes and
+ // and other issues that are hard to track down. We must not let them
+ // propagate through the system.
+ //
+ // Log a warning so that we notice the problem and recover gracefully.
+ if (event.when >= currentTime + s2ns(10)) {
+ // Double-check. Time may have moved on.
+ auto time = systemTime(SYSTEM_TIME_MONOTONIC);
+ if (event.when > time) {
+ ALOGW("An input event from %s has a timestamp that appears to have "
+ "been generated using the wrong clock source (expected "
+ "CLOCK_MONOTONIC): event time %" PRId64 ", current time %" PRId64
+ ", call time %" PRId64 ". Using current time instead.",
+ mDeviceNode->getPath().c_str(), event.when, time, currentTime);
+ event.when = time;
+ } else {
+ ALOGV("Event time is ok but failed the fast path and required an extra "
+ "call to systemTime: event time %" PRId64 ", current time %" PRId64
+ ", call time %" PRId64 ".", event.when, time, currentTime);
+ }
+ }
+}
+
+} // namespace android
diff --git a/libhardware/modules/input/evdev/InputDevice.h b/libhardware/modules/input/evdev/InputDevice.h
new file mode 100644
index 0000000..3aa16cc
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputDevice.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_DEVICE_H_
+#define ANDROID_INPUT_DEVICE_H_
+
+#include <memory>
+
+#include <utils/Timers.h>
+
+#include "InputHub.h"
+
+namespace android {
+
+/**
+ * InputDeviceInterface represents an input device in the HAL. It processes
+ * input events before passing them to the input host.
+ */
+class InputDeviceInterface {
+public:
+ virtual void processInput(InputEvent& event, nsecs_t currentTime) = 0;
+
+protected:
+ InputDeviceInterface() = default;
+ virtual ~InputDeviceInterface() = default;
+};
+
+/**
+ * EvdevDevice is an input device backed by a Linux evdev node.
+ */
+class EvdevDevice : public InputDeviceInterface {
+public:
+ explicit EvdevDevice(std::shared_ptr<InputDeviceNode> node);
+ virtual ~EvdevDevice() override = default;
+
+ virtual void processInput(InputEvent& event, nsecs_t currentTime) override;
+
+private:
+ std::shared_ptr<InputDeviceNode> mDeviceNode;
+
+ int32_t mOverrideSec = 0;
+ int32_t mOverrideUsec = 0;
+};
+
+} // namespace android
+
+#endif // ANDROID_INPUT_DEVICE_H_
diff --git a/libhardware/modules/input/evdev/InputDeviceManager.cpp b/libhardware/modules/input/evdev/InputDeviceManager.cpp
new file mode 100644
index 0000000..ceddd90
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputDeviceManager.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputDeviceManager"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include "InputDevice.h"
+#include "InputDeviceManager.h"
+
+namespace android {
+
+void InputDeviceManager::onInputEvent(std::shared_ptr<InputDeviceNode> node, InputEvent& event,
+ nsecs_t event_time) {
+ if (mDevices[node] == nullptr) {
+ ALOGE("got input event for unknown node %s", node->getPath().c_str());
+ return;
+ }
+ mDevices[node]->processInput(event, event_time);
+}
+
+void InputDeviceManager::onDeviceAdded(std::shared_ptr<InputDeviceNode> node) {
+ mDevices[node] = std::make_shared<EvdevDevice>(node);
+}
+
+void InputDeviceManager::onDeviceRemoved(std::shared_ptr<InputDeviceNode> node) {
+ if (mDevices[node] == nullptr) {
+ ALOGE("could not remove unknown node %s", node->getPath().c_str());
+ return;
+ }
+ // TODO: tell the InputDevice and InputDeviceNode that they are being
+ // removed so they can run any cleanup.
+ mDevices.erase(node);
+}
+
+} // namespace android
diff --git a/libhardware/modules/input/evdev/InputDeviceManager.h b/libhardware/modules/input/evdev/InputDeviceManager.h
new file mode 100644
index 0000000..b652155
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputDeviceManager.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_DEVICE_MANAGER_H_
+#define ANDROID_INPUT_DEVICE_MANAGER_H_
+
+#include <memory>
+#include <unordered_map>
+
+#include <utils/Timers.h>
+
+#include "InputDevice.h"
+#include "InputHub.h"
+
+namespace android {
+
+/**
+ * InputDeviceManager keeps the mapping of InputDeviceNodes to
+ * InputDeviceInterfaces and handles the callbacks from the InputHub, delegating
+ * them to the appropriate InputDeviceInterface.
+ */
+class InputDeviceManager : public InputCallbackInterface {
+public:
+ virtual ~InputDeviceManager() override = default;
+
+ virtual void onInputEvent(std::shared_ptr<InputDeviceNode> node, InputEvent& event,
+ nsecs_t event_time) override;
+ virtual void onDeviceAdded(std::shared_ptr<InputDeviceNode> node) override;
+ virtual void onDeviceRemoved(std::shared_ptr<InputDeviceNode> node) override;
+
+private:
+ template<class T, class U>
+ using DeviceMap = std::unordered_map<std::shared_ptr<T>, std::shared_ptr<U>>;
+
+ DeviceMap<InputDeviceNode, InputDeviceInterface> mDevices;
+};
+
+} // namespace android
+
+#endif // ANDROID_INPUT_DEVICE_MANAGER_H_
diff --git a/libhardware/modules/input/evdev/InputHost.cpp b/libhardware/modules/input/evdev/InputHost.cpp
new file mode 100644
index 0000000..6a65fcd
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputHost.cpp
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "InputHost.h"
+
+namespace android {
+
+void InputReport::reportEvent(InputDeviceHandle d) {
+ mCallbacks.report_event(mHost, d, mReport);
+}
+
+void InputReportDefinition::addCollection(InputCollectionId id, int32_t arity) {
+ mCallbacks.input_report_definition_add_collection(mHost, mReportDefinition, id, arity);
+}
+
+void InputReportDefinition::declareUsage(InputCollectionId id, InputUsage usage,
+ int32_t min, int32_t max, float resolution) {
+ mCallbacks.input_report_definition_declare_usage_int(mHost, mReportDefinition,
+ id, usage, min, max, resolution);
+}
+
+void InputReportDefinition::declareUsage(InputCollectionId id, InputUsage* usage,
+ size_t usageCount) {
+ mCallbacks.input_report_definition_declare_usages_bool(mHost, mReportDefinition,
+ id, usage, usageCount);
+}
+
+InputReport InputReportDefinition::allocateReport() {
+ return InputReport(mHost, mCallbacks,
+ mCallbacks.input_allocate_report(mHost, mReportDefinition));
+}
+
+void InputDeviceDefinition::addReport(InputReportDefinition r) {
+ mCallbacks.input_device_definition_add_report(mHost, mDeviceDefinition, r);
+}
+
+InputProperty::~InputProperty() {
+ mCallbacks.input_free_device_property(mHost, mProperty);
+}
+
+const char* InputProperty::getKey() {
+ return mCallbacks.input_get_property_key(mHost, mProperty);
+}
+
+const char* InputProperty::getValue() {
+ return mCallbacks.input_get_property_value(mHost, mProperty);
+}
+
+InputPropertyMap::~InputPropertyMap() {
+ mCallbacks.input_free_device_property_map(mHost, mMap);
+}
+
+InputProperty InputPropertyMap::getDeviceProperty(const char* key) {
+ return InputProperty(mHost, mCallbacks,
+ mCallbacks.input_get_device_property(mHost, mMap, key));
+}
+
+InputDeviceIdentifier InputHost::createDeviceIdentifier(const char* name, int32_t productId,
+ int32_t vendorId, InputBus bus, const char* uniqueId) {
+ return mCallbacks.create_device_identifier(mHost, name, productId, vendorId, bus, uniqueId);
+}
+
+InputDeviceDefinition InputHost::createDeviceDefinition() {
+ return InputDeviceDefinition(mHost, mCallbacks, mCallbacks.create_device_definition(mHost));
+}
+
+InputReportDefinition InputHost::createInputReportDefinition() {
+ return InputReportDefinition(mHost, mCallbacks,
+ mCallbacks.create_input_report_definition(mHost));
+}
+
+InputReportDefinition InputHost::createOutputReportDefinition() {
+ return InputReportDefinition(mHost, mCallbacks,
+ mCallbacks.create_output_report_definition(mHost));
+}
+
+InputDeviceHandle InputHost::registerDevice(InputDeviceIdentifier id,
+ InputDeviceDefinition d) {
+ return mCallbacks.register_device(mHost, id, d);
+}
+
+void InputHost::unregisterDevice(InputDeviceHandle handle) {
+ return mCallbacks.unregister_device(mHost, handle);
+}
+
+InputPropertyMap InputHost::getDevicePropertyMap(InputDeviceIdentifier id) {
+ return InputPropertyMap(mHost, mCallbacks,
+ mCallbacks.input_get_device_property_map(mHost, id));
+}
+
+} // namespace android
diff --git a/libhardware/modules/input/evdev/InputHost.h b/libhardware/modules/input/evdev/InputHost.h
new file mode 100644
index 0000000..98ce26f
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputHost.h
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_HOST_H_
+#define ANDROID_INPUT_HOST_H_
+
+#include <memory>
+
+#include <hardware/input.h>
+
+namespace android {
+
+/**
+ * Classes in this file wrap the corresponding interfaces in the Input HAL. They
+ * are intended to be lightweight and passed by value. It is still important not
+ * to use an object after a HAL-specific method has freed the underlying
+ * representation.
+ *
+ * See hardware/input.h for details about each of these methods.
+ */
+
+using InputBus = input_bus_t;
+using InputCollectionId = input_collection_id_t;
+using InputDeviceHandle = input_device_handle_t*;
+using InputDeviceIdentifier = input_device_identifier_t*;
+using InputUsage = input_usage_t;
+
+class InputHostBase {
+protected:
+ InputHostBase(input_host_t* host, input_host_callbacks_t cb) : mHost(host), mCallbacks(cb) {}
+ virtual ~InputHostBase() = default;
+
+ input_host_t* mHost;
+ input_host_callbacks_t mCallbacks;
+};
+
+class InputReport : private InputHostBase {
+public:
+ virtual ~InputReport() = default;
+
+ InputReport(const InputReport& rhs) = default;
+ InputReport& operator=(const InputReport& rhs) = default;
+ operator input_report_t*() const { return mReport; }
+
+ void reportEvent(InputDeviceHandle d);
+
+private:
+ friend class InputReportDefinition;
+
+ InputReport(input_host_t* host, input_host_callbacks_t cb, input_report_t* r) :
+ InputHostBase(host, cb), mReport(r) {}
+
+ input_report_t* mReport;
+};
+
+class InputReportDefinition : private InputHostBase {
+public:
+ virtual ~InputReportDefinition() = default;
+
+ InputReportDefinition(const InputReportDefinition& rhs) = default;
+ InputReportDefinition& operator=(const InputReportDefinition& rhs) = default;
+ operator input_report_definition_t*() { return mReportDefinition; }
+
+ void addCollection(InputCollectionId id, int32_t arity);
+ void declareUsage(InputCollectionId id, InputUsage usage, int32_t min, int32_t max,
+ float resolution);
+ void declareUsage(InputCollectionId id, InputUsage* usage, size_t usageCount);
+
+ InputReport allocateReport();
+
+private:
+ friend class InputHost;
+
+ InputReportDefinition(
+ input_host_t* host, input_host_callbacks_t cb, input_report_definition_t* r) :
+ InputHostBase(host, cb), mReportDefinition(r) {}
+
+ input_report_definition_t* mReportDefinition;
+};
+
+class InputDeviceDefinition : private InputHostBase {
+public:
+ virtual ~InputDeviceDefinition() = default;
+
+ InputDeviceDefinition(const InputDeviceDefinition& rhs) = default;
+ InputDeviceDefinition& operator=(const InputDeviceDefinition& rhs) = default;
+ operator input_device_definition_t*() { return mDeviceDefinition; }
+
+ void addReport(InputReportDefinition r);
+
+private:
+ friend class InputHost;
+
+ InputDeviceDefinition(
+ input_host_t* host, input_host_callbacks_t cb, input_device_definition_t* d) :
+ InputHostBase(host, cb), mDeviceDefinition(d) {}
+
+ input_device_definition_t* mDeviceDefinition;
+};
+
+class InputProperty : private InputHostBase {
+public:
+ virtual ~InputProperty();
+
+ operator input_property_t*() { return mProperty; }
+
+ const char* getKey();
+ const char* getValue();
+
+ // Default move constructor transfers ownership of the input_property_t
+ // pointer.
+ InputProperty(InputProperty&& rhs) = default;
+
+ // Prevent copy/assign because of the ownership of the underlying
+ // input_property_t pointer.
+ InputProperty(const InputProperty& rhs) = delete;
+ InputProperty& operator=(const InputProperty& rhs) = delete;
+
+private:
+ friend class InputPropertyMap;
+
+ InputProperty(
+ input_host_t* host, input_host_callbacks_t cb, input_property_t* p) :
+ InputHostBase(host, cb), mProperty(p) {}
+
+ input_property_t* mProperty;
+};
+
+class InputPropertyMap : private InputHostBase {
+public:
+ virtual ~InputPropertyMap();
+
+ operator input_property_map_t*() { return mMap; }
+
+ InputProperty getDeviceProperty(const char* key);
+
+ // Default move constructor transfers ownership of the input_property_map_t
+ // pointer.
+ InputPropertyMap(InputPropertyMap&& rhs) = default;
+
+ // Prevent copy/assign because of the ownership of the underlying
+ // input_property_map_t pointer.
+ InputPropertyMap(const InputPropertyMap& rhs) = delete;
+ InputPropertyMap& operator=(const InputPropertyMap& rhs) = delete;
+
+private:
+ friend class InputHost;
+
+ InputPropertyMap(
+ input_host_t* host, input_host_callbacks_t cb, input_property_map_t* m) :
+ InputHostBase(host, cb), mMap(m) {}
+
+ input_property_map_t* mMap;
+};
+
+class InputHost : private InputHostBase {
+public:
+ InputHost(input_host_t* host, input_host_callbacks_t cb) : InputHostBase(host, cb) {}
+ virtual ~InputHost() = default;
+
+ InputHost(const InputHost& rhs) = default;
+ InputHost& operator=(const InputHost& rhs) = default;
+
+ InputDeviceIdentifier createDeviceIdentifier(const char* name, int32_t productId,
+ int32_t vendorId, InputBus bus, const char* uniqueId);
+
+ InputDeviceDefinition createDeviceDefinition();
+ InputReportDefinition createInputReportDefinition();
+ InputReportDefinition createOutputReportDefinition();
+
+ InputDeviceHandle registerDevice(InputDeviceIdentifier id, InputDeviceDefinition d);
+ void unregisterDevice(InputDeviceHandle handle);
+
+ InputPropertyMap getDevicePropertyMap(InputDeviceIdentifier id);
+};
+
+} // namespace android
+
+#endif // ANDROID_INPUT_HOST_H_
diff --git a/libhardware/modules/input/evdev/InputHub.cpp b/libhardware/modules/input/evdev/InputHub.cpp
new file mode 100644
index 0000000..e72ac2e
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputHub.cpp
@@ -0,0 +1,802 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputHub"
+#define LOG_NDEBUG 0
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/capability.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include <sys/inotify.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <unistd.h>
+
+#include <vector>
+
+#include "InputHub.h"
+
+#include <android/input.h>
+#include <hardware_legacy/power.h>
+#include <linux/input.h>
+
+#include <utils/Log.h>
+
+namespace android {
+
+static const char WAKE_LOCK_ID[] = "KeyEvents";
+static const int NO_TIMEOUT = -1;
+static const int EPOLL_MAX_EVENTS = 16;
+static const int INPUT_MAX_EVENTS = 128;
+
+static constexpr bool testBit(int bit, const uint8_t arr[]) {
+ return arr[bit / 8] & (1 << (bit % 8));
+}
+
+static constexpr size_t sizeofBitArray(size_t bits) {
+ return (bits + 7) / 8;
+}
+
+static void getLinuxRelease(int* major, int* minor) {
+ struct utsname info;
+ if (uname(&info) || sscanf(info.release, "%d.%d", major, minor) <= 0) {
+ *major = 0, *minor = 0;
+ ALOGE("Could not get linux version: %s", strerror(errno));
+ }
+}
+
+static bool processHasCapability(int capability) {
+ LOG_ALWAYS_FATAL_IF(!cap_valid(capability), "invalid linux capability: %d", capability);
+ struct __user_cap_header_struct cap_header_data;
+ struct __user_cap_data_struct cap_data_data[2];
+ cap_user_header_t caphdr = &cap_header_data;
+ cap_user_data_t capdata = cap_data_data;
+ caphdr->pid = 0;
+ caphdr->version = _LINUX_CAPABILITY_VERSION_3;
+ LOG_ALWAYS_FATAL_IF(capget(caphdr, capdata) != 0,
+ "Could not get process capabilities. errno=%d", errno);
+ ALOGV("effective capabilities: %08x %08x", capdata[0].effective, capdata[1].effective);
+ int idx = CAP_TO_INDEX(capability);
+ return capdata[idx].effective & CAP_TO_MASK(capability);
+}
+
+class EvdevDeviceNode : public InputDeviceNode {
+public:
+ static EvdevDeviceNode* openDeviceNode(const std::string& path);
+
+ virtual ~EvdevDeviceNode() {
+ ALOGV("closing %s (fd=%d)", mPath.c_str(), mFd);
+ if (mFd >= 0) {
+ ::close(mFd);
+ }
+ }
+
+ virtual int getFd() const { return mFd; }
+ virtual const std::string& getPath() const override { return mPath; }
+ virtual const std::string& getName() const override { return mName; }
+ virtual const std::string& getLocation() const override { return mLocation; }
+ virtual const std::string& getUniqueId() const override { return mUniqueId; }
+
+ virtual uint16_t getBusType() const override { return mBusType; }
+ virtual uint16_t getVendorId() const override { return mVendorId; }
+ virtual uint16_t getProductId() const override { return mProductId; }
+ virtual uint16_t getVersion() const override { return mVersion; }
+
+ virtual bool hasKey(int32_t key) const override;
+ virtual bool hasRelativeAxis(int axis) const override;
+ virtual const AbsoluteAxisInfo* getAbsoluteAxisInfo(int32_t axis) const override;
+ virtual bool hasInputProperty(int property) const override;
+
+ virtual int32_t getKeyState(int32_t key) const override;
+ virtual int32_t getSwitchState(int32_t sw) const override;
+ virtual status_t getAbsoluteAxisValue(int32_t axis, int32_t* outValue) const override;
+
+ virtual void vibrate(nsecs_t duration) override;
+ virtual void cancelVibrate(int32_t deviceId) override;
+
+ virtual void disableDriverKeyRepeat() override;
+
+private:
+ EvdevDeviceNode(const std::string& path, int fd) :
+ mFd(fd), mPath(path) {}
+
+ status_t queryProperties();
+ void queryAxisInfo();
+
+ int mFd;
+ std::string mPath;
+
+ std::string mName;
+ std::string mLocation;
+ std::string mUniqueId;
+
+ uint16_t mBusType;
+ uint16_t mVendorId;
+ uint16_t mProductId;
+ uint16_t mVersion;
+
+ uint8_t mKeyBitmask[KEY_CNT / 8];
+ uint8_t mAbsBitmask[ABS_CNT / 8];
+ uint8_t mRelBitmask[REL_CNT / 8];
+ uint8_t mSwBitmask[SW_CNT / 8];
+ uint8_t mLedBitmask[LED_CNT / 8];
+ uint8_t mFfBitmask[FF_CNT / 8];
+ uint8_t mPropBitmask[INPUT_PROP_CNT / 8];
+
+ std::unordered_map<uint32_t, std::unique_ptr<AbsoluteAxisInfo>> mAbsInfo;
+
+ bool mFfEffectPlaying = false;
+ int16_t mFfEffectId = -1;
+};
+
+EvdevDeviceNode* EvdevDeviceNode::openDeviceNode(const std::string& path) {
+ auto fd = TEMP_FAILURE_RETRY(::open(path.c_str(), O_RDONLY | O_NONBLOCK | O_CLOEXEC));
+ if (fd < 0) {
+ ALOGE("could not open evdev device %s. err=%d", path.c_str(), errno);
+ return nullptr;
+ }
+
+ // Tell the kernel that we want to use the monotonic clock for reporting
+ // timestamps associated with input events. This is important because the
+ // input system uses the timestamps extensively and assumes they were
+ // recorded using the monotonic clock.
+ //
+ // The EVIOCSCLOCKID ioctl was introduced in Linux 3.4.
+ int clockId = CLOCK_MONOTONIC;
+ if (TEMP_FAILURE_RETRY(ioctl(fd, EVIOCSCLOCKID, &clockId)) < 0) {
+ ALOGW("Could not set input clock id to CLOCK_MONOTONIC. errno=%d", errno);
+ }
+
+ auto node = new EvdevDeviceNode(path, fd);
+ status_t ret = node->queryProperties();
+ if (ret != OK) {
+ ALOGE("could not open evdev device %s: failed to read properties. errno=%d",
+ path.c_str(), ret);
+ delete node;
+ return nullptr;
+ }
+ return node;
+}
+
+status_t EvdevDeviceNode::queryProperties() {
+ char buffer[80];
+
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGNAME(sizeof(buffer) - 1), buffer)) < 1) {
+ ALOGV("could not get device name for %s.", mPath.c_str());
+ } else {
+ buffer[sizeof(buffer) - 1] = '\0';
+ mName = buffer;
+ }
+
+ int driverVersion;
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGVERSION, &driverVersion))) {
+ ALOGE("could not get driver version for %s. err=%d", mPath.c_str(), errno);
+ return -errno;
+ }
+
+ struct input_id inputId;
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGID, &inputId))) {
+ ALOGE("could not get device input id for %s. err=%d", mPath.c_str(), errno);
+ return -errno;
+ }
+ mBusType = inputId.bustype;
+ mVendorId = inputId.vendor;
+ mProductId = inputId.product;
+ mVersion = inputId.version;
+
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGPHYS(sizeof(buffer) - 1), buffer)) < 1) {
+ ALOGV("could not get location for %s.", mPath.c_str());
+ } else {
+ buffer[sizeof(buffer) - 1] = '\0';
+ mLocation = buffer;
+ }
+
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGUNIQ(sizeof(buffer) - 1), buffer)) < 1) {
+ ALOGV("could not get unique id for %s.", mPath.c_str());
+ } else {
+ buffer[sizeof(buffer) - 1] = '\0';
+ mUniqueId = buffer;
+ }
+
+ ALOGV("add device %s", mPath.c_str());
+ ALOGV(" bus: %04x\n"
+ " vendor: %04x\n"
+ " product: %04x\n"
+ " version: %04x\n",
+ mBusType, mVendorId, mProductId, mVersion);
+ ALOGV(" name: \"%s\"\n"
+ " location: \"%s\"\n"
+ " unique_id: \"%s\"\n"
+ " descriptor: (TODO)\n"
+ " driver: v%d.%d.%d",
+ mName.c_str(), mLocation.c_str(), mUniqueId.c_str(),
+ driverVersion >> 16, (driverVersion >> 8) & 0xff, (driverVersion >> 16) & 0xff);
+
+ TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGBIT(EV_KEY, sizeof(mKeyBitmask)), mKeyBitmask));
+ TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGBIT(EV_ABS, sizeof(mAbsBitmask)), mAbsBitmask));
+ TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGBIT(EV_REL, sizeof(mRelBitmask)), mRelBitmask));
+ TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGBIT(EV_SW, sizeof(mSwBitmask)), mSwBitmask));
+ TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGBIT(EV_LED, sizeof(mLedBitmask)), mLedBitmask));
+ TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGBIT(EV_FF, sizeof(mFfBitmask)), mFfBitmask));
+ TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGPROP(sizeof(mPropBitmask)), mPropBitmask));
+
+ queryAxisInfo();
+
+ return OK;
+}
+
+void EvdevDeviceNode::queryAxisInfo() {
+ for (int32_t axis = 0; axis < ABS_MAX; ++axis) {
+ if (testBit(axis, mAbsBitmask)) {
+ struct input_absinfo info;
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGABS(axis), &info))) {
+ ALOGW("Error reading absolute controller %d for device %s fd %d, errno=%d",
+ axis, mPath.c_str(), mFd, errno);
+ continue;
+ }
+
+ mAbsInfo[axis] = std::unique_ptr<AbsoluteAxisInfo>(new AbsoluteAxisInfo{
+ .minValue = info.minimum,
+ .maxValue = info.maximum,
+ .flat = info.flat,
+ .fuzz = info.fuzz,
+ .resolution = info.resolution
+ });
+ }
+ }
+}
+
+bool EvdevDeviceNode::hasKey(int32_t key) const {
+ if (key >= 0 && key <= KEY_MAX) {
+ return testBit(key, mKeyBitmask);
+ }
+ return false;
+}
+
+bool EvdevDeviceNode::hasRelativeAxis(int axis) const {
+ if (axis >= 0 && axis <= REL_MAX) {
+ return testBit(axis, mRelBitmask);
+ }
+ return false;
+}
+
+const AbsoluteAxisInfo* EvdevDeviceNode::getAbsoluteAxisInfo(int32_t axis) const {
+ if (axis < 0 || axis > ABS_MAX) {
+ return nullptr;
+ }
+
+ const auto absInfo = mAbsInfo.find(axis);
+ if (absInfo != mAbsInfo.end()) {
+ return absInfo->second.get();
+ }
+ return nullptr;
+}
+
+bool EvdevDeviceNode::hasInputProperty(int property) const {
+ if (property >= 0 && property <= INPUT_PROP_MAX) {
+ return testBit(property, mPropBitmask);
+ }
+ return false;
+}
+
+int32_t EvdevDeviceNode::getKeyState(int32_t key) const {
+ if (key >= 0 && key <= KEY_MAX) {
+ if (testBit(key, mKeyBitmask)) {
+ uint8_t keyState[sizeofBitArray(KEY_CNT)];
+ memset(keyState, 0, sizeof(keyState));
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGKEY(sizeof(keyState)), keyState)) >= 0) {
+ return testBit(key, keyState) ? AKEY_STATE_DOWN : AKEY_STATE_UP;
+ }
+ }
+ }
+ return AKEY_STATE_UNKNOWN;
+}
+
+int32_t EvdevDeviceNode::getSwitchState(int32_t sw) const {
+ if (sw >= 0 && sw <= SW_MAX) {
+ if (testBit(sw, mSwBitmask)) {
+ uint8_t swState[sizeofBitArray(SW_CNT)];
+ memset(swState, 0, sizeof(swState));
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGSW(sizeof(swState)), swState)) >= 0) {
+ return testBit(sw, swState) ? AKEY_STATE_DOWN : AKEY_STATE_UP;
+ }
+ }
+ }
+ return AKEY_STATE_UNKNOWN;
+}
+
+status_t EvdevDeviceNode::getAbsoluteAxisValue(int32_t axis, int32_t* outValue) const {
+ *outValue = 0;
+
+ if (axis >= 0 && axis <= ABS_MAX) {
+ if (testBit(axis, mAbsBitmask)) {
+ struct input_absinfo info;
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCGABS(axis), &info))) {
+ ALOGW("Error reading absolute controller %d for device %s fd %d, errno=%d",
+ axis, mPath.c_str(), mFd, errno);
+ return -errno;
+ }
+
+ *outValue = info.value;
+ return OK;
+ }
+ }
+ return -1;
+}
+
+void EvdevDeviceNode::vibrate(nsecs_t duration) {
+ ff_effect effect{};
+ effect.type = FF_RUMBLE;
+ effect.id = mFfEffectId;
+ effect.u.rumble.strong_magnitude = 0xc000;
+ effect.u.rumble.weak_magnitude = 0xc000;
+ effect.replay.length = (duration + 999'999LL) / 1'000'000LL;
+ effect.replay.delay = 0;
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCSFF, &effect))) {
+ ALOGW("Could not upload force feedback effect to device %s due to error %d.",
+ mPath.c_str(), errno);
+ return;
+ }
+ mFfEffectId = effect.id;
+
+ struct input_event ev{};
+ ev.type = EV_FF;
+ ev.code = mFfEffectId;
+ ev.value = 1;
+ size_t written = TEMP_FAILURE_RETRY(write(mFd, &ev, sizeof(ev)));
+ if (written != sizeof(ev)) {
+ ALOGW("Could not start force feedback effect on device %s due to error %d.",
+ mPath.c_str(), errno);
+ return;
+ }
+ mFfEffectPlaying = true;
+}
+
+void EvdevDeviceNode::cancelVibrate(int32_t deviceId) {
+ if (mFfEffectPlaying) {
+ mFfEffectPlaying = false;
+
+ struct input_event ev{};
+ ev.type = EV_FF;
+ ev.code = mFfEffectId;
+ ev.value = 0;
+ size_t written = TEMP_FAILURE_RETRY(write(mFd, &ev, sizeof(ev)));
+ if (written != sizeof(ev)) {
+ ALOGW("Could not stop force feedback effect on device %s due to error %d.",
+ mPath.c_str(), errno);
+ return;
+ }
+ }
+}
+
+void EvdevDeviceNode::disableDriverKeyRepeat() {
+ unsigned int repeatRate[] = {0, 0};
+ if (TEMP_FAILURE_RETRY(ioctl(mFd, EVIOCSREP, repeatRate))) {
+ ALOGW("Unable to disable kernel key repeat for %s due to error %d.",
+ mPath.c_str(), errno);
+ }
+}
+
+InputHub::InputHub(std::shared_ptr<InputCallbackInterface> cb) :
+ mInputCallback(cb) {
+ // Determine the type of suspend blocking we can do on this device. There
+ // are 3 options, in decreasing order of preference:
+ // 1) EPOLLWAKEUP: introduced in Linux kernel 3.5, this flag can be set on
+ // an epoll event to indicate that a wake lock should be held from the
+ // time an fd has data until the next epoll_wait (or the epoll fd is
+ // closed).
+ // 2) EVIOCSSUSPENDBLOCK: introduced into the Android kernel's evdev
+ // driver, this ioctl blocks suspend while the event queue for the fd is
+ // not empty. This was never accepted into the mainline kernel, and it was
+ // replaced by EPOLLWAKEUP.
+ // 3) explicit wake locks: use acquire_wake_lock to manage suspend
+ // blocking explicitly in the InputHub code.
+ //
+ // (1) can be checked by simply observing the Linux kernel version. (2)
+ // requires an fd from an evdev node, which cannot be done in the InputHub
+ // constructor. So we assume (3) unless (1) is true, and we can verify
+ // whether (2) is true once we have an evdev fd (and we're not in (1)).
+ int major, minor;
+ getLinuxRelease(&major, &minor);
+ if (major > 3 || (major == 3 && minor >= 5)) {
+ ALOGI("Using EPOLLWAKEUP to block suspend while processing input events.");
+ mWakeupMechanism = WakeMechanism::EPOLL_WAKEUP;
+ mNeedToCheckSuspendBlockIoctl = false;
+ }
+ if (manageWakeLocks()) {
+ acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID);
+ }
+
+ // epoll_create argument is ignored, but it must be > 0.
+ mEpollFd = epoll_create(1);
+ LOG_ALWAYS_FATAL_IF(mEpollFd < 0, "Could not create epoll instance. errno=%d", errno);
+
+ mINotifyFd = inotify_init();
+ LOG_ALWAYS_FATAL_IF(mINotifyFd < 0, "Could not create inotify instance. errno=%d", errno);
+
+ struct epoll_event eventItem;
+ memset(&eventItem, 0, sizeof(eventItem));
+ eventItem.events = EPOLLIN;
+ if (mWakeupMechanism == WakeMechanism::EPOLL_WAKEUP) {
+ eventItem.events |= EPOLLWAKEUP;
+ }
+ eventItem.data.u32 = mINotifyFd;
+ int result = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, mINotifyFd, &eventItem);
+ LOG_ALWAYS_FATAL_IF(result != 0, "Could not add INotify to epoll instance. errno=%d", errno);
+
+ int wakeFds[2];
+ result = pipe(wakeFds);
+ LOG_ALWAYS_FATAL_IF(result != 0, "Could not create wake pipe. errno=%d", errno);
+
+ mWakeEventFd = eventfd(0, EFD_NONBLOCK);
+ LOG_ALWAYS_FATAL_IF(mWakeEventFd == -1, "Could not create wake event fd. errno=%d", errno);
+
+ eventItem.data.u32 = mWakeEventFd;
+ result = epoll_ctl(mEpollFd, EPOLL_CTL_ADD, mWakeEventFd, &eventItem);
+ LOG_ALWAYS_FATAL_IF(result != 0, "Could not add wake event fd to epoll instance. errno=%d", errno);
+}
+
+InputHub::~InputHub() {
+ ::close(mEpollFd);
+ ::close(mINotifyFd);
+ ::close(mWakeEventFd);
+
+ if (manageWakeLocks()) {
+ release_wake_lock(WAKE_LOCK_ID);
+ }
+}
+
+status_t InputHub::registerDevicePath(const std::string& path) {
+ ALOGV("registering device path %s", path.c_str());
+ int wd = inotify_add_watch(mINotifyFd, path.c_str(), IN_DELETE | IN_CREATE);
+ if (wd < 0) {
+ ALOGE("Could not add %s to INotify watch. errno=%d", path.c_str(), errno);
+ return -errno;
+ }
+ mWatchedPaths[wd] = path;
+ scanDir(path);
+ return OK;
+}
+
+status_t InputHub::unregisterDevicePath(const std::string& path) {
+ int wd = -1;
+ for (auto pair : mWatchedPaths) {
+ if (pair.second == path) {
+ wd = pair.first;
+ break;
+ }
+ }
+
+ if (wd == -1) {
+ return BAD_VALUE;
+ }
+ mWatchedPaths.erase(wd);
+ if (inotify_rm_watch(mINotifyFd, wd) != 0) {
+ return -errno;
+ }
+ return OK;
+}
+
+status_t InputHub::poll() {
+ bool deviceChange = false;
+
+ if (manageWakeLocks()) {
+ // Mind the wake lock dance!
+ // If we're relying on wake locks, we hold a wake lock at all times
+ // except during epoll_wait(). This works due to some subtle
+ // choreography. When a device driver has pending (unread) events, it
+ // acquires a kernel wake lock. However, once the last pending event
+ // has been read, the device driver will release the kernel wake lock.
+ // To prevent the system from going to sleep when this happens, the
+ // InputHub holds onto its own user wake lock while the client is
+ // processing events. Thus the system can only sleep if there are no
+ // events pending or currently being processed.
+ release_wake_lock(WAKE_LOCK_ID);
+ }
+
+ struct epoll_event pendingEventItems[EPOLL_MAX_EVENTS];
+ int pollResult = epoll_wait(mEpollFd, pendingEventItems, EPOLL_MAX_EVENTS, NO_TIMEOUT);
+
+ if (manageWakeLocks()) {
+ acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_ID);
+ }
+
+ if (pollResult == 0) {
+ ALOGW("epoll_wait should not return 0 with no timeout");
+ return UNKNOWN_ERROR;
+ }
+ if (pollResult < 0) {
+ // An error occurred. Return even if it's EINTR, and let the caller
+ // restart the poll.
+ ALOGE("epoll_wait returned with errno=%d", errno);
+ return -errno;
+ }
+
+ // pollResult > 0: there are events to process
+ nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
+ std::vector<int> removedDeviceFds;
+ int inputFd = -1;
+ std::shared_ptr<InputDeviceNode> deviceNode;
+ for (int i = 0; i < pollResult; ++i) {
+ const struct epoll_event& eventItem = pendingEventItems[i];
+
+ int dataFd = static_cast<int>(eventItem.data.u32);
+ if (dataFd == mINotifyFd) {
+ if (eventItem.events & EPOLLIN) {
+ deviceChange = true;
+ } else {
+ ALOGW("Received unexpected epoll event 0x%08x for INotify.", eventItem.events);
+ }
+ continue;
+ }
+
+ if (dataFd == mWakeEventFd) {
+ if (eventItem.events & EPOLLIN) {
+ ALOGV("awoken after wake()");
+ uint64_t u;
+ ssize_t nRead = TEMP_FAILURE_RETRY(read(mWakeEventFd, &u, sizeof(uint64_t)));
+ if (nRead != sizeof(uint64_t)) {
+ ALOGW("Could not read event fd; waking anyway.");
+ }
+ } else {
+ ALOGW("Received unexpected epoll event 0x%08x for wake event.",
+ eventItem.events);
+ }
+ continue;
+ }
+
+ // Update the fd and device node when the fd changes. When several
+ // events are read back-to-back with the same fd, this saves many reads
+ // from the hash table.
+ if (inputFd != dataFd) {
+ inputFd = dataFd;
+ deviceNode = mDeviceNodes[inputFd];
+ }
+ if (deviceNode == nullptr) {
+ ALOGE("could not find device node for fd %d", inputFd);
+ continue;
+ }
+ if (eventItem.events & EPOLLIN) {
+ struct input_event ievs[INPUT_MAX_EVENTS];
+ for (;;) {
+ ssize_t readSize = TEMP_FAILURE_RETRY(read(inputFd, ievs, sizeof(ievs)));
+ if (readSize == 0 || (readSize < 0 && errno == ENODEV)) {
+ ALOGW("could not get event, removed? (fd: %d, size: %d errno: %d)",
+ inputFd, readSize, errno);
+
+ removedDeviceFds.push_back(inputFd);
+ break;
+ } else if (readSize < 0) {
+ if (errno != EAGAIN && errno != EINTR) {
+ ALOGW("could not get event. errno=%d", errno);
+ }
+ break;
+ } else if (readSize % sizeof(input_event) != 0) {
+ ALOGE("could not get event. wrong size=%d", readSize);
+ break;
+ } else {
+ size_t count = static_cast<size_t>(readSize) / sizeof(struct input_event);
+ for (size_t i = 0; i < count; ++i) {
+ auto& iev = ievs[i];
+ auto when = s2ns(iev.time.tv_sec) + us2ns(iev.time.tv_usec);
+ InputEvent inputEvent = { when, iev.type, iev.code, iev.value };
+ mInputCallback->onInputEvent(deviceNode, inputEvent, now);
+ }
+ }
+ }
+ } else if (eventItem.events & EPOLLHUP) {
+ ALOGI("Removing device fd %d due to epoll hangup event.", inputFd);
+ removedDeviceFds.push_back(inputFd);
+ } else {
+ ALOGW("Received unexpected epoll event 0x%08x for device fd %d",
+ eventItem.events, inputFd);
+ }
+ }
+
+ if (removedDeviceFds.size()) {
+ for (auto deviceFd : removedDeviceFds) {
+ auto deviceNode = mDeviceNodes[deviceFd];
+ if (deviceNode != nullptr) {
+ status_t ret = closeNodeByFd(deviceFd);
+ if (ret != OK) {
+ ALOGW("Could not close device with fd %d. errno=%d", deviceFd, ret);
+ } else {
+ mInputCallback->onDeviceRemoved(deviceNode);
+ }
+ }
+ }
+ }
+
+ if (deviceChange) {
+ readNotify();
+ }
+
+ return OK;
+}
+
+status_t InputHub::wake() {
+ ALOGV("wake() called");
+
+ uint64_t u = 1;
+ ssize_t nWrite = TEMP_FAILURE_RETRY(write(mWakeEventFd, &u, sizeof(uint64_t)));
+
+ if (nWrite != sizeof(uint64_t) && errno != EAGAIN) {
+ ALOGW("Could not write wake signal, errno=%d", errno);
+ return -errno;
+ }
+ return OK;
+}
+
+void InputHub::dump(String8& dump) {
+ // TODO
+}
+
+status_t InputHub::readNotify() {
+ char event_buf[512];
+ struct inotify_event* event;
+
+ ssize_t res = TEMP_FAILURE_RETRY(read(mINotifyFd, event_buf, sizeof(event_buf)));
+ if (res < static_cast<int>(sizeof(*event))) {
+ ALOGW("could not get inotify event, %s\n", strerror(errno));
+ return -errno;
+ }
+
+ size_t event_pos = 0;
+ nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
+ while (res >= static_cast<int>(sizeof(*event))) {
+ event = reinterpret_cast<struct inotify_event*>(event_buf + event_pos);
+ if (event->len) {
+ std::string path = mWatchedPaths[event->wd];
+ path.append("/").append(event->name);
+ ALOGV("inotify event for path %s", path.c_str());
+
+ if (event->mask & IN_CREATE) {
+ std::shared_ptr<InputDeviceNode> deviceNode;
+ status_t res = openNode(path, &deviceNode);
+ if (res != OK) {
+ ALOGE("could not open device node %s. err=%d", path.c_str(), res);
+ } else {
+ mInputCallback->onDeviceAdded(deviceNode);
+ }
+ } else {
+ auto deviceNode = findNodeByPath(path);
+ if (deviceNode != nullptr) {
+ status_t ret = closeNode(deviceNode);
+ if (ret != OK) {
+ ALOGW("Could not close device %s. errno=%d", path.c_str(), ret);
+ } else {
+ mInputCallback->onDeviceRemoved(deviceNode);
+ }
+ } else {
+ ALOGW("could not find device node for %s", path.c_str());
+ }
+ }
+ }
+ int event_size = sizeof(*event) + event->len;
+ res -= event_size;
+ event_pos += event_size;
+ }
+
+ return OK;
+}
+
+status_t InputHub::scanDir(const std::string& path) {
+ auto dir = ::opendir(path.c_str());
+ if (dir == nullptr) {
+ ALOGE("could not open device path %s to scan for devices. err=%d", path.c_str(), errno);
+ return -errno;
+ }
+
+ while (auto dirent = readdir(dir)) {
+ if (strcmp(dirent->d_name, ".") == 0 ||
+ strcmp(dirent->d_name, "..") == 0) {
+ continue;
+ }
+ std::string filename = path + "/" + dirent->d_name;
+ std::shared_ptr<InputDeviceNode> node;
+ if (openNode(filename, &node) != OK) {
+ ALOGE("could not open device node %s", filename.c_str());
+ } else {
+ mInputCallback->onDeviceAdded(node);
+ }
+ }
+ ::closedir(dir);
+ return OK;
+}
+
+status_t InputHub::openNode(const std::string& path,
+ std::shared_ptr<InputDeviceNode>* outNode) {
+ ALOGV("opening %s...", path.c_str());
+ auto evdevNode = std::shared_ptr<EvdevDeviceNode>(EvdevDeviceNode::openDeviceNode(path));
+ if (evdevNode == nullptr) {
+ return UNKNOWN_ERROR;
+ }
+
+ auto fd = evdevNode->getFd();
+ ALOGV("opened %s with fd %d", path.c_str(), fd);
+ *outNode = std::static_pointer_cast<InputDeviceNode>(evdevNode);
+ mDeviceNodes[fd] = *outNode;
+ struct epoll_event eventItem{};
+ eventItem.events = EPOLLIN;
+ if (mWakeupMechanism == WakeMechanism::EPOLL_WAKEUP) {
+ eventItem.events |= EPOLLWAKEUP;
+ }
+ eventItem.data.u32 = fd;
+ if (epoll_ctl(mEpollFd, EPOLL_CTL_ADD, fd, &eventItem)) {
+ ALOGE("Could not add device fd to epoll instance. errno=%d", errno);
+ return -errno;
+ }
+
+ if (mNeedToCheckSuspendBlockIoctl) {
+#ifndef EVIOCSSUSPENDBLOCK
+ // uapi headers don't include EVIOCSSUSPENDBLOCK, and future kernels
+ // will use an epoll flag instead, so as long as we want to support this
+ // feature, we need to be prepared to define the ioctl ourselves.
+#define EVIOCSSUSPENDBLOCK _IOW('E', 0x91, int)
+#endif
+ if (TEMP_FAILURE_RETRY(ioctl(fd, EVIOCSSUSPENDBLOCK, 1))) {
+ // no wake mechanism, continue using explicit wake locks
+ ALOGI("Using explicit wakelocks to block suspend while processing input events.");
+ } else {
+ mWakeupMechanism = WakeMechanism::LEGACY_EVDEV_SUSPENDBLOCK_IOCTL;
+ // release any held wakelocks since we won't need them anymore
+ release_wake_lock(WAKE_LOCK_ID);
+ ALOGI("Using EVIOCSSUSPENDBLOCK to block suspend while processing input events.");
+ }
+ mNeedToCheckSuspendBlockIoctl = false;
+ }
+
+ return OK;
+}
+
+status_t InputHub::closeNode(const std::shared_ptr<InputDeviceNode>& node) {
+ for (auto pair : mDeviceNodes) {
+ if (pair.second.get() == node.get()) {
+ return closeNodeByFd(pair.first);
+ }
+ }
+ return BAD_VALUE;
+}
+
+status_t InputHub::closeNodeByFd(int fd) {
+ status_t ret = OK;
+ if (epoll_ctl(mEpollFd, EPOLL_CTL_DEL, fd, NULL)) {
+ ALOGW("Could not remove device fd from epoll instance. errno=%d", errno);
+ ret = -errno;
+ }
+ mDeviceNodes.erase(fd);
+ ::close(fd);
+ return ret;
+}
+
+std::shared_ptr<InputDeviceNode> InputHub::findNodeByPath(const std::string& path) {
+ for (auto pair : mDeviceNodes) {
+ if (pair.second->getPath() == path) return pair.second;
+ }
+ return nullptr;
+}
+
+bool InputHub::manageWakeLocks() const {
+ return mWakeupMechanism != WakeMechanism::EPOLL_WAKEUP;
+}
+
+} // namespace android
diff --git a/libhardware/modules/input/evdev/InputHub.h b/libhardware/modules/input/evdev/InputHub.h
new file mode 100644
index 0000000..bec327a
--- /dev/null
+++ b/libhardware/modules/input/evdev/InputHub.h
@@ -0,0 +1,204 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INPUT_HUB_H_
+#define ANDROID_INPUT_HUB_H_
+
+#include <memory>
+#include <string>
+#include <unordered_map>
+
+#include <utils/String8.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+/**
+ * InputEvent represents an event from the kernel. The fields largely mirror
+ * those found in linux/input.h.
+ */
+struct InputEvent {
+ nsecs_t when;
+
+ int32_t type;
+ int32_t code;
+ int32_t value;
+};
+
+/** Describes an absolute axis. */
+struct AbsoluteAxisInfo {
+ int32_t minValue = 0; // minimum value
+ int32_t maxValue = 0; // maximum value
+ int32_t flat = 0; // center flat position, e.g. flat == 8 means center is between -8 and 8
+ int32_t fuzz = 0; // error tolerance, e.g. fuzz == 4 means value is +/- 4 due to noise
+ int32_t resolution = 0; // resolution in units per mm or radians per mm
+};
+
+/**
+ * An InputDeviceNode represents a device node in the Linux system. It can be
+ * used to interact with the device, setting and getting property values.
+ *
+ * An InputDeviceNode should only be used on the same thread that is polling for
+ * input events.
+ */
+class InputDeviceNode {
+public:
+ virtual const std::string& getPath() const = 0;
+
+ virtual const std::string& getName() const = 0;
+ virtual const std::string& getLocation() const = 0;
+ virtual const std::string& getUniqueId() const = 0;
+
+ virtual uint16_t getBusType() const = 0;
+ virtual uint16_t getVendorId() const = 0;
+ virtual uint16_t getProductId() const = 0;
+ virtual uint16_t getVersion() const = 0;
+
+ virtual bool hasKey(int32_t key) const = 0;
+ virtual bool hasRelativeAxis(int axis) const = 0;
+ virtual const AbsoluteAxisInfo* getAbsoluteAxisInfo(int32_t axis) const = 0;
+ virtual bool hasInputProperty(int property) const = 0;
+
+ virtual int32_t getKeyState(int32_t key) const = 0;
+ virtual int32_t getSwitchState(int32_t sw) const = 0;
+ virtual status_t getAbsoluteAxisValue(int32_t axis, int32_t* outValue) const = 0;
+
+ virtual void vibrate(nsecs_t duration) = 0;
+ virtual void cancelVibrate(int32_t deviceId) = 0;
+
+ virtual void disableDriverKeyRepeat() = 0;
+
+protected:
+ InputDeviceNode() = default;
+ virtual ~InputDeviceNode() = default;
+};
+
+/** Callback interface for receiving input events, including device changes. */
+class InputCallbackInterface {
+public:
+ virtual void onInputEvent(std::shared_ptr<InputDeviceNode> node, InputEvent& event,
+ nsecs_t event_time) = 0;
+ virtual void onDeviceAdded(std::shared_ptr<InputDeviceNode> node) = 0;
+ virtual void onDeviceRemoved(std::shared_ptr<InputDeviceNode> node) = 0;
+
+protected:
+ InputCallbackInterface() = default;
+ virtual ~InputCallbackInterface() = default;
+};
+
+/**
+ * InputHubInterface is responsible for monitoring a set of device paths and
+ * executing callbacks when events occur. Before calling poll(), you should set
+ * the device and input callbacks, and register your device path(s).
+ */
+class InputHubInterface {
+public:
+ virtual status_t registerDevicePath(const std::string& path) = 0;
+ virtual status_t unregisterDevicePath(const std::string& path) = 0;
+
+ virtual status_t poll() = 0;
+ virtual status_t wake() = 0;
+
+ virtual void dump(String8& dump) = 0;
+
+protected:
+ InputHubInterface() = default;
+ virtual ~InputHubInterface() = default;
+};
+
+/**
+ * An implementation of InputHubInterface that uses epoll to wait for events.
+ *
+ * This class is not threadsafe. Any functions called on the InputHub should be
+ * called on the same thread that is used to call poll(). The only exception is
+ * wake(), which may be used to return from poll() before an input or device
+ * event occurs.
+ */
+class InputHub : public InputHubInterface {
+public:
+ explicit InputHub(std::shared_ptr<InputCallbackInterface> cb);
+ virtual ~InputHub() override;
+
+ virtual status_t registerDevicePath(const std::string& path) override;
+ virtual status_t unregisterDevicePath(const std::string& path) override;
+
+ virtual status_t poll() override;
+ virtual status_t wake() override;
+
+ virtual void dump(String8& dump) override;
+
+private:
+ status_t readNotify();
+ status_t scanDir(const std::string& path);
+ status_t openNode(const std::string& path, std::shared_ptr<InputDeviceNode>* outNode);
+ status_t closeNode(const std::shared_ptr<InputDeviceNode>& node);
+ status_t closeNodeByFd(int fd);
+ std::shared_ptr<InputDeviceNode> findNodeByPath(const std::string& path);
+
+ enum class WakeMechanism {
+ /**
+ * The kernel supports the EPOLLWAKEUP flag for epoll_ctl.
+ *
+ * When using this mechanism, epoll_wait will internally acquire a wake
+ * lock whenever one of the FDs it is monitoring becomes ready. The wake
+ * lock is held automatically by the kernel until the next call to
+ * epoll_wait.
+ *
+ * This mechanism only exists in Linux kernel 3.5+.
+ */
+ EPOLL_WAKEUP,
+ /**
+ * The kernel evdev driver supports the EVIOCSSUSPENDBLOCK ioctl.
+ *
+ * When using this mechanism, the InputHub asks evdev to acquire and
+ * hold a wake lock whenever its buffer is non-empty. We must take care
+ * to acquire our own userspace wake lock before draining the buffer to
+ * prevent actually going back into suspend before we have fully
+ * processed all of the events.
+ *
+ * This mechanism only exists in older Android Linux kernels.
+ */
+ LEGACY_EVDEV_SUSPENDBLOCK_IOCTL,
+ /**
+ * The kernel doesn't seem to support any special wake mechanism.
+ *
+ * We explicitly acquire and release wake locks when processing input
+ * events.
+ */
+ LEGACY_EVDEV_EXPLICIT_WAKE_LOCKS,
+ };
+ WakeMechanism mWakeupMechanism = WakeMechanism::LEGACY_EVDEV_EXPLICIT_WAKE_LOCKS;
+ bool manageWakeLocks() const;
+ bool mNeedToCheckSuspendBlockIoctl = true;
+
+ int mEpollFd;
+ int mINotifyFd;
+ int mWakeEventFd;
+ int mWakeReadPipeFd;
+ int mWakeWritePipeFd;
+
+ // Callback for input events
+ std::shared_ptr<InputCallbackInterface> mInputCallback;
+
+ // Map from watch descriptors to watched paths
+ std::unordered_map<int, std::string> mWatchedPaths;
+ // Map from file descriptors to InputDeviceNodes
+ std::unordered_map<int, std::shared_ptr<InputDeviceNode>> mDeviceNodes;
+};
+
+} // namespace android
+
+#endif // ANDROID_INPUT_HUB_H_
diff --git a/libhardware/modules/local_time/Android.bp b/libhardware/modules/local_time/Android.bp
new file mode 100644
index 0000000..df32325
--- /dev/null
+++ b/libhardware/modules/local_time/Android.bp
@@ -0,0 +1,32 @@
+// Copyright (C) 2011 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// The default local time HAL module. The default module simply uses the
+// system's clock_gettime(CLOCK_MONOTONIC) and does not support HW slewing.
+// Devices which use the default implementation should take care to ensure that
+// the oscillator backing the CLOCK_MONOTONIC implementation is phase locked to
+// the audio and video output hardware. This default implementation is loaded
+// if no other device specific modules are present. The exact load order can be
+// seen in libhardware/hardware.c
+//
+// The format of the name is local_time.<hardware>.so
+cc_library_shared {
+ name: "local_time.default",
+ relative_install_path: "hw",
+ srcs: ["local_time_hw.c"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ ],
+}
diff --git a/libhardware/modules/local_time/local_time_hw.c b/libhardware/modules/local_time/local_time_hw.c
new file mode 100644
index 0000000..ac597f4
--- /dev/null
+++ b/libhardware/modules/local_time/local_time_hw.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "local_time_hw_default"
+//#define LOG_NDEBUG 0
+
+#include <errno.h>
+#include <malloc.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/time.h>
+
+#include <cutils/log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/local_time_hal.h>
+
+struct stub_local_time_device {
+ struct local_time_hw_device device;
+};
+
+static int64_t ltdev_get_local_time(struct local_time_hw_device* dev)
+{
+ struct timespec ts;
+ uint64_t now;
+ int ret;
+
+ ret = clock_gettime(CLOCK_MONOTONIC, &ts);
+ if (ret < 0) {
+ ALOGW("%s failed to fetch CLOCK_MONOTONIC value! (res = %d)",
+ dev->common.module->name, ret);
+ return 0;
+ }
+
+ now = (((uint64_t)ts.tv_sec) * 1000000000ull) +
+ ((uint64_t)ts.tv_nsec);
+
+ return (int64_t)now;
+}
+
+static uint64_t ltdev_get_local_freq(struct local_time_hw_device* dev)
+{
+ // For better or worse, linux clock_gettime routines normalize all clock
+ // frequencies to 1GHz
+ return 1000000000ull;
+}
+
+static int ltdev_close(hw_device_t *device)
+{
+ free(device);
+ return 0;
+}
+
+static int ltdev_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ struct stub_local_time_device *ltdev;
+ struct timespec ts;
+ int ret;
+
+ if (strcmp(name, LOCAL_TIME_HARDWARE_INTERFACE) != 0)
+ return -EINVAL;
+
+ ltdev = calloc(1, sizeof(struct stub_local_time_device));
+ if (!ltdev)
+ return -ENOMEM;
+
+ ltdev->device.common.tag = HARDWARE_DEVICE_TAG;
+ ltdev->device.common.version = 0;
+ ltdev->device.common.module = (struct hw_module_t *) module;
+ ltdev->device.common.close = ltdev_close;
+
+ ltdev->device.get_local_time = ltdev_get_local_time;
+ ltdev->device.get_local_freq = ltdev_get_local_freq;
+ ltdev->device.set_local_slew = NULL;
+ ltdev->device.get_debug_log = NULL;
+
+ *device = <dev->device.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t hal_module_methods = {
+ .open = ltdev_open,
+};
+
+struct local_time_module HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .version_major = 1,
+ .version_minor = 0,
+ .id = LOCAL_TIME_HARDWARE_MODULE_ID,
+ .name = "Default local_time HW HAL",
+ .author = "The Android Open Source Project",
+ .methods = &hal_module_methods,
+ },
+};
diff --git a/libhardware/modules/nfc-nci/Android.bp b/libhardware/modules/nfc-nci/Android.bp
new file mode 100644
index 0000000..fc73761
--- /dev/null
+++ b/libhardware/modules/nfc-nci/Android.bp
@@ -0,0 +1,23 @@
+// Copyright (C) 2011 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+ name: "nfc_nci.default",
+ relative_install_path: "hw",
+ srcs: ["nfc_nci_example.c"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ ],
+}
diff --git a/libhardware/modules/nfc-nci/nfc_nci_example.c b/libhardware/modules/nfc-nci/nfc_nci_example.c
new file mode 100644
index 0000000..758c2b7
--- /dev/null
+++ b/libhardware/modules/nfc-nci/nfc_nci_example.c
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <errno.h>
+#include <malloc.h>
+#include <string.h>
+
+#include <cutils/log.h>
+#include <hardware/hardware.h>
+#include <hardware/nfc.h>
+
+
+/*
+ * NCI HAL method implementations. These must be overriden
+ */
+static int hal_open(const struct nfc_nci_device *dev,
+ nfc_stack_callback_t *p_cback, nfc_stack_data_callback_t *p_data_cback) {
+ ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
+ return 0;
+}
+
+static int hal_write(const struct nfc_nci_device *dev,
+ uint16_t data_len, const uint8_t *p_data) {
+ ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
+ return 0;
+}
+
+static int hal_core_initialized(const struct nfc_nci_device *dev,
+ uint8_t* p_core_init_rsp_params) {
+ ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
+ return 0;
+}
+
+static int hal_pre_discover(const struct nfc_nci_device *dev) {
+ ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
+ return 0;
+}
+
+static int hal_close(const struct nfc_nci_device *dev) {
+ ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
+ return 0;
+}
+
+static int hal_control_granted (const struct nfc_nci_device *p_dev)
+{
+ ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
+ return 0;
+}
+
+
+static int hal_power_cycle (const struct nfc_nci_device *p_dev)
+{
+ ALOGE("NFC-NCI HAL: %s", __FUNCTION__);
+ return 0;
+}
+
+/*
+ * Generic device handling below - can generally be left unchanged.
+ */
+/* Close an opened nfc device instance */
+static int nfc_close(hw_device_t *dev) {
+ free(dev);
+ return 0;
+}
+
+static int nfc_open(const hw_module_t* module, const char* name,
+ hw_device_t** device) {
+ if (strcmp(name, NFC_NCI_CONTROLLER) == 0) {
+ nfc_nci_device_t *dev = calloc(1, sizeof(nfc_nci_device_t));
+
+ dev->common.tag = HARDWARE_DEVICE_TAG;
+ dev->common.version = 0x00010000; // [31:16] major, [15:0] minor
+ dev->common.module = (struct hw_module_t*) module;
+ dev->common.close = nfc_close;
+
+ // NCI HAL method pointers
+ dev->open = hal_open;
+ dev->write = hal_write;
+ dev->core_initialized = hal_core_initialized;
+ dev->pre_discover = hal_pre_discover;
+ dev->close = hal_close;
+ dev->control_granted = hal_control_granted;
+ dev->power_cycle = hal_power_cycle;
+
+ *device = (hw_device_t*) dev;
+
+ return 0;
+ } else {
+ return -EINVAL;
+ }
+}
+
+
+static struct hw_module_methods_t nfc_module_methods = {
+ .open = nfc_open,
+};
+
+struct nfc_nci_module_t HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = 0x0100, // [15:8] major, [7:0] minor (1.0)
+ .hal_api_version = 0x00, // 0 is only valid value
+ .id = NFC_NCI_HARDWARE_MODULE_ID,
+ .name = "Default NFC NCI HW HAL",
+ .author = "The Android Open Source Project",
+ .methods = &nfc_module_methods,
+ },
+};
diff --git a/libhardware/modules/nfc/Android.bp b/libhardware/modules/nfc/Android.bp
new file mode 100644
index 0000000..bd93bb5
--- /dev/null
+++ b/libhardware/modules/nfc/Android.bp
@@ -0,0 +1,23 @@
+// Copyright (C) 2011 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+ name: "nfc.default",
+ relative_install_path: "hw",
+ srcs: ["nfc_pn544_example.c"],
+ shared_libs: [
+ "liblog",
+ "libcutils",
+ ],
+}
diff --git a/libhardware/modules/nfc/nfc_pn544_example.c b/libhardware/modules/nfc/nfc_pn544_example.c
new file mode 100644
index 0000000..71bfd6b
--- /dev/null
+++ b/libhardware/modules/nfc/nfc_pn544_example.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <errno.h>
+#include <malloc.h>
+#include <string.h>
+
+#include <hardware/hardware.h>
+#include <hardware/nfc.h>
+
+/* Close an opened pn544 device instance */
+static int pn544_close(hw_device_t *dev) {
+ free(dev);
+ return 0;
+}
+
+/*
+ * Generic device handling
+ */
+static int nfc_open(const hw_module_t* module, const char* name,
+ hw_device_t** device) {
+ if (strcmp(name, NFC_PN544_CONTROLLER) == 0) {
+ nfc_pn544_device_t *dev = calloc(1, sizeof(nfc_pn544_device_t));
+
+ dev->common.tag = HARDWARE_DEVICE_TAG;
+ dev->common.version = 0;
+ dev->common.module = (struct hw_module_t*) module;
+ dev->common.close = pn544_close;
+
+ /* Example settings */
+ dev->num_eeprom_settings = 0;
+ dev->eeprom_settings = NULL;
+ dev->linktype = PN544_LINK_TYPE_INVALID;
+ dev->device_node = NULL;
+ dev->enable_i2c_workaround = 0;
+ dev->i2c_device_address = 0;
+
+ *device = (hw_device_t*) dev;
+ return 0;
+ } else {
+ return -EINVAL;
+ }
+}
+
+
+static struct hw_module_methods_t nfc_module_methods = {
+ .open = nfc_open,
+};
+
+struct nfc_module_t HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .version_major = 1,
+ .version_minor = 0,
+ .id = NFC_HARDWARE_MODULE_ID,
+ .name = "Default NFC HW HAL",
+ .author = "The Android Open Source Project",
+ .methods = &nfc_module_methods,
+ },
+};
diff --git a/libhardware/modules/power/Android.bp b/libhardware/modules/power/Android.bp
new file mode 100644
index 0000000..2b86c8b
--- /dev/null
+++ b/libhardware/modules/power/Android.bp
@@ -0,0 +1,20 @@
+// Copyright (C) 2011 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+ name: "power.default",
+ relative_install_path: "hw",
+ srcs: ["power.c"],
+ shared_libs: ["liblog"],
+}
diff --git a/libhardware/modules/power/power.c b/libhardware/modules/power/power.c
new file mode 100644
index 0000000..7cacc09
--- /dev/null
+++ b/libhardware/modules/power/power.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define LOG_TAG "Legacy PowerHAL"
+#include <utils/Log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/power.h>
+
+static void power_init(struct power_module *module)
+{
+}
+
+static void power_set_interactive(struct power_module *module, int on)
+{
+}
+
+static void power_hint(struct power_module *module, power_hint_t hint,
+ void *data) {
+ switch (hint) {
+ default:
+ break;
+ }
+}
+
+static struct hw_module_methods_t power_module_methods = {
+ .open = NULL,
+};
+
+struct power_module HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = POWER_MODULE_API_VERSION_0_2,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = POWER_HARDWARE_MODULE_ID,
+ .name = "Default Power HAL",
+ .author = "The Android Open Source Project",
+ .methods = &power_module_methods,
+ },
+
+ .init = power_init,
+ .setInteractive = power_set_interactive,
+ .powerHint = power_hint,
+};
diff --git a/libhardware/modules/radio/Android.mk b/libhardware/modules/radio/Android.mk
new file mode 100644
index 0000000..f433c85
--- /dev/null
+++ b/libhardware/modules/radio/Android.mk
@@ -0,0 +1,27 @@
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+# Stub radio HAL module, used for tests
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := radio.fm.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := radio_hw.c
+LOCAL_SHARED_LIBRARIES := liblog libcutils libradio_metadata
+LOCAL_MODULE_TAGS := optional
+LOCAL_32_BIT_ONLY := true
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libhardware/modules/radio/radio_hw.c b/libhardware/modules/radio/radio_hw.c
new file mode 100644
index 0000000..9c0f22c
--- /dev/null
+++ b/libhardware/modules/radio/radio_hw.c
@@ -0,0 +1,744 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "radio_hw_stub"
+#define LOG_NDEBUG 0
+
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <pthread.h>
+#include <sys/prctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <cutils/log.h>
+#include <cutils/list.h>
+#include <system/radio.h>
+#include <system/radio_metadata.h>
+#include <hardware/hardware.h>
+#include <hardware/radio.h>
+
+static const radio_hal_properties_t hw_properties = {
+ .class_id = RADIO_CLASS_AM_FM,
+ .implementor = "The Android Open Source Project",
+ .product = "Radio stub HAL",
+ .version = "0.1",
+ .serial = "0123456789",
+ .num_tuners = 1,
+ .num_audio_sources = 1,
+ .supports_capture = false,
+ .num_bands = 2,
+ .bands = {
+ {
+ .type = RADIO_BAND_FM,
+ .antenna_connected = false,
+ .lower_limit = 87900,
+ .upper_limit = 107900,
+ .num_spacings = 1,
+ .spacings = { 200 },
+ .fm = {
+ .deemphasis = RADIO_DEEMPHASIS_75,
+ .stereo = true,
+ .rds = RADIO_RDS_US,
+ .ta = false,
+ .af = false,
+ }
+ },
+ {
+ .type = RADIO_BAND_AM,
+ .antenna_connected = true,
+ .lower_limit = 540,
+ .upper_limit = 1610,
+ .num_spacings = 1,
+ .spacings = { 10 },
+ .am = {
+ .stereo = true,
+ }
+ }
+ }
+};
+
+struct stub_radio_tuner {
+ struct radio_tuner interface;
+ struct stub_radio_device *dev;
+ radio_callback_t callback;
+ void *cookie;
+ radio_hal_band_config_t config;
+ radio_program_info_t program;
+ bool audio;
+ pthread_t callback_thread;
+ pthread_mutex_t lock;
+ pthread_cond_t cond;
+ struct listnode command_list;
+};
+
+struct stub_radio_device {
+ struct radio_hw_device device;
+ struct stub_radio_tuner *tuner;
+ pthread_mutex_t lock;
+};
+
+
+typedef enum {
+ CMD_EXIT,
+ CMD_CONFIG,
+ CMD_STEP,
+ CMD_SCAN,
+ CMD_TUNE,
+ CMD_CANCEL,
+ CMD_METADATA,
+} thread_cmd_type_t;
+
+struct thread_command {
+ struct listnode node;
+ thread_cmd_type_t type;
+ struct timespec ts;
+ union {
+ unsigned int param;
+ radio_hal_band_config_t config;
+ };
+};
+
+/* must be called with out->lock locked */
+static int send_command_l(struct stub_radio_tuner *tuner,
+ thread_cmd_type_t type,
+ unsigned int delay_ms,
+ void *param)
+{
+ struct thread_command *cmd = (struct thread_command *)calloc(1, sizeof(struct thread_command));
+ struct timespec ts;
+
+ if (cmd == NULL)
+ return -ENOMEM;
+
+ ALOGV("%s %d delay_ms %d", __func__, type, delay_ms);
+
+ cmd->type = type;
+ if (param != NULL) {
+ if (cmd->type == CMD_CONFIG) {
+ cmd->config = *(radio_hal_band_config_t *)param;
+ ALOGV("%s CMD_CONFIG type %d", __func__, cmd->config.type);
+ } else
+ cmd->param = *(unsigned int *)param;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &ts);
+
+ ts.tv_sec += delay_ms/1000;
+ ts.tv_nsec += (delay_ms%1000) * 1000000;
+ if (ts.tv_nsec >= 1000000000) {
+ ts.tv_nsec -= 1000000000;
+ ts.tv_sec += 1;
+ }
+ cmd->ts = ts;
+ list_add_tail(&tuner->command_list, &cmd->node);
+ pthread_cond_signal(&tuner->cond);
+ return 0;
+}
+
+#define BITMAP_FILE_PATH "/data/misc/media/android.png"
+
+static int add_bitmap_metadata(radio_metadata_t **metadata, radio_metadata_key_t key,
+ const char *source)
+{
+ int fd;
+ ssize_t ret = 0;
+ struct stat info;
+ void *data = NULL;
+ size_t size;
+
+ fd = open(source, O_RDONLY);
+ if (fd < 0)
+ return -EPIPE;
+
+ fstat(fd, &info);
+ size = info.st_size;
+ data = malloc(size);
+ if (data == NULL) {
+ ret = -ENOMEM;
+ goto exit;
+ }
+ ret = read(fd, data, size);
+ if (ret < 0)
+ goto exit;
+ ret = radio_metadata_add_raw(metadata, key, (const unsigned char *)data, size);
+
+exit:
+ close(fd);
+ free(data);
+ ALOGE_IF(ret != 0, "%s error %d", __func__, ret);
+ return (int)ret;
+}
+
+static int prepare_metadata(struct stub_radio_tuner *tuner,
+ radio_metadata_t **metadata, bool program)
+{
+ int ret = 0;
+ char text[RADIO_STRING_LEN_MAX];
+ struct timespec ts;
+
+ if (metadata == NULL)
+ return -EINVAL;
+
+ if (*metadata != NULL)
+ radio_metadata_deallocate(*metadata);
+
+ *metadata = NULL;
+
+ ret = radio_metadata_allocate(metadata, tuner->program.channel, 0);
+ if (ret != 0)
+ return ret;
+
+ if (program) {
+ ret = radio_metadata_add_int(metadata, RADIO_METADATA_KEY_RBDS_PTY, 5);
+ if (ret != 0)
+ goto exit;
+ ret = radio_metadata_add_text(metadata, RADIO_METADATA_KEY_RDS_PS, "RockBand");
+ if (ret != 0)
+ goto exit;
+ ret = add_bitmap_metadata(metadata, RADIO_METADATA_KEY_ICON, BITMAP_FILE_PATH);
+ if (ret != 0)
+ goto exit;
+ } else {
+ ret = add_bitmap_metadata(metadata, RADIO_METADATA_KEY_ART, BITMAP_FILE_PATH);
+ if (ret != 0)
+ goto exit;
+ }
+
+ clock_gettime(CLOCK_REALTIME, &ts);
+ snprintf(text, RADIO_STRING_LEN_MAX, "Artist %ld", ts.tv_sec % 10);
+ ret = radio_metadata_add_text(metadata, RADIO_METADATA_KEY_ARTIST, text);
+ if (ret != 0)
+ goto exit;
+
+ snprintf(text, RADIO_STRING_LEN_MAX, "Song %ld", ts.tv_nsec % 10);
+ ret = radio_metadata_add_text(metadata, RADIO_METADATA_KEY_TITLE, text);
+ if (ret != 0)
+ goto exit;
+
+ return 0;
+
+exit:
+ radio_metadata_deallocate(*metadata);
+ *metadata = NULL;
+ return ret;
+}
+
+static void *callback_thread_loop(void *context)
+{
+ struct stub_radio_tuner *tuner = (struct stub_radio_tuner *)context;
+ struct timespec ts = {0, 0};
+
+ ALOGI("%s", __func__);
+
+ prctl(PR_SET_NAME, (unsigned long)"sound trigger callback", 0, 0, 0);
+
+ pthread_mutex_lock(&tuner->lock);
+
+ while (true) {
+ struct thread_command *cmd = NULL;
+ struct listnode *item;
+ struct listnode *tmp;
+ struct timespec cur_ts;
+ bool got_cancel = false;
+ bool send_meta_data = false;
+
+ if (list_empty(&tuner->command_list) || ts.tv_sec != 0) {
+ ALOGV("%s SLEEPING", __func__);
+ if (ts.tv_sec != 0) {
+ ALOGV("%s SLEEPING with timeout", __func__);
+ pthread_cond_timedwait(&tuner->cond, &tuner->lock, &ts);
+ } else {
+ ALOGV("%s SLEEPING forever", __func__);
+ pthread_cond_wait(&tuner->cond, &tuner->lock);
+ }
+ ts.tv_sec = 0;
+ ALOGV("%s RUNNING", __func__);
+ }
+
+ clock_gettime(CLOCK_REALTIME, &cur_ts);
+
+ list_for_each_safe(item, tmp, &tuner->command_list) {
+ cmd = node_to_item(item, struct thread_command, node);
+
+ if (got_cancel && (cmd->type == CMD_STEP || cmd->type == CMD_SCAN ||
+ cmd->type == CMD_TUNE || cmd->type == CMD_METADATA)) {
+ list_remove(item);
+ free(cmd);
+ continue;
+ }
+
+ if ((cmd->ts.tv_sec < cur_ts.tv_sec) ||
+ ((cmd->ts.tv_sec == cur_ts.tv_sec) && (cmd->ts.tv_nsec < cur_ts.tv_nsec))) {
+ radio_hal_event_t event;
+ radio_metadata_t *metadata = NULL;
+
+ event.type = RADIO_EVENT_HW_FAILURE;
+ list_remove(item);
+
+ ALOGV("%s processing command %d time %ld.%ld", __func__, cmd->type, cmd->ts.tv_sec,
+ cmd->ts.tv_nsec);
+
+ switch (cmd->type) {
+ default:
+ case CMD_EXIT:
+ free(cmd);
+ goto exit;
+
+ case CMD_CONFIG: {
+ tuner->config = cmd->config;
+ event.type = RADIO_EVENT_CONFIG;
+ event.config = tuner->config;
+ ALOGV("%s CMD_CONFIG type %d low %d up %d",
+ __func__, tuner->config.type,
+ tuner->config.lower_limit, tuner->config.upper_limit);
+ if (tuner->config.type == RADIO_BAND_FM) {
+ ALOGV(" - stereo %d\n - rds %d\n - ta %d\n - af %d",
+ tuner->config.fm.stereo, tuner->config.fm.rds,
+ tuner->config.fm.ta, tuner->config.fm.af);
+ } else {
+ ALOGV(" - stereo %d", tuner->config.am.stereo);
+ }
+ } break;
+
+ case CMD_STEP: {
+ int frequency;
+ frequency = tuner->program.channel;
+ if (cmd->param == RADIO_DIRECTION_UP) {
+ frequency += tuner->config.spacings[0];
+ } else {
+ frequency -= tuner->config.spacings[0];
+ }
+ if (frequency > (int)tuner->config.upper_limit) {
+ frequency = tuner->config.lower_limit;
+ }
+ if (frequency < (int)tuner->config.lower_limit) {
+ frequency = tuner->config.upper_limit;
+ }
+ tuner->program.channel = frequency;
+ tuner->program.tuned = (frequency / (tuner->config.spacings[0] * 5)) % 2;
+ tuner->program.signal_strength = 20;
+ if (tuner->config.type == RADIO_BAND_FM)
+ tuner->program.stereo = false;
+ else
+ tuner->program.stereo = false;
+
+ event.type = RADIO_EVENT_TUNED;
+ event.info = tuner->program;
+ } break;
+
+ case CMD_SCAN: {
+ int frequency;
+ frequency = tuner->program.channel;
+ if (cmd->param == RADIO_DIRECTION_UP) {
+ frequency += tuner->config.spacings[0] * 25;
+ } else {
+ frequency -= tuner->config.spacings[0] * 25;
+ }
+ if (frequency > (int)tuner->config.upper_limit) {
+ frequency = tuner->config.lower_limit;
+ }
+ if (frequency < (int)tuner->config.lower_limit) {
+ frequency = tuner->config.upper_limit;
+ }
+ tuner->program.channel = (unsigned int)frequency;
+ tuner->program.tuned = true;
+ if (tuner->config.type == RADIO_BAND_FM)
+ tuner->program.stereo = tuner->config.fm.stereo;
+ else
+ tuner->program.stereo = tuner->config.am.stereo;
+ tuner->program.signal_strength = 50;
+
+ event.type = RADIO_EVENT_TUNED;
+ event.info = tuner->program;
+ send_meta_data = true;
+ } break;
+
+ case CMD_TUNE: {
+ tuner->program.channel = cmd->param;
+ tuner->program.tuned = (tuner->program.channel /
+ (tuner->config.spacings[0] * 5)) % 2;
+
+ if (tuner->program.tuned) {
+ prepare_metadata(tuner, &tuner->program.metadata, true);
+ send_command_l(tuner, CMD_METADATA, 5000, NULL);
+ } else {
+ if (tuner->program.metadata != NULL)
+ radio_metadata_deallocate(tuner->program.metadata);
+ tuner->program.metadata = NULL;
+ }
+ tuner->program.signal_strength = 100;
+ if (tuner->config.type == RADIO_BAND_FM)
+ tuner->program.stereo =
+ tuner->program.tuned ? tuner->config.fm.stereo : false;
+ else
+ tuner->program.stereo =
+ tuner->program.tuned ? tuner->config.am.stereo : false;
+ event.type = RADIO_EVENT_TUNED;
+ event.info = tuner->program;
+ send_meta_data = true;
+ } break;
+
+ case CMD_METADATA: {
+ int ret = prepare_metadata(tuner, &metadata, false);
+ if (ret == 0) {
+ event.type = RADIO_EVENT_METADATA;
+ event.metadata = metadata;
+ }
+ send_meta_data = true;
+ } break;
+
+ case CMD_CANCEL: {
+ got_cancel = true;
+ } break;
+
+ }
+ if (event.type != RADIO_EVENT_HW_FAILURE && tuner->callback != NULL) {
+ pthread_mutex_unlock(&tuner->lock);
+ tuner->callback(&event, tuner->cookie);
+ pthread_mutex_lock(&tuner->lock);
+ if (event.type == RADIO_EVENT_METADATA && metadata != NULL) {
+ radio_metadata_deallocate(metadata);
+ metadata = NULL;
+ }
+ }
+ ALOGV("%s processed command %d", __func__, cmd->type);
+ free(cmd);
+ } else {
+ if ((ts.tv_sec == 0) ||
+ (cmd->ts.tv_sec < ts.tv_sec) ||
+ ((cmd->ts.tv_sec == ts.tv_sec) && (cmd->ts.tv_nsec < ts.tv_nsec))) {
+ ts.tv_sec = cmd->ts.tv_sec;
+ ts.tv_nsec = cmd->ts.tv_nsec;
+ }
+ }
+ }
+
+ if (send_meta_data) {
+ list_for_each_safe(item, tmp, &tuner->command_list) {
+ cmd = node_to_item(item, struct thread_command, node);
+ if (cmd->type == CMD_METADATA) {
+ list_remove(item);
+ free(cmd);
+ }
+ }
+ send_command_l(tuner, CMD_METADATA, 100, NULL);
+ }
+ }
+
+exit:
+ pthread_mutex_unlock(&tuner->lock);
+
+ ALOGV("%s Exiting", __func__);
+
+ return NULL;
+}
+
+
+static int tuner_set_configuration(const struct radio_tuner *tuner,
+ const radio_hal_band_config_t *config)
+{
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+ int status = 0;
+
+ ALOGI("%s stub_tuner %p", __func__, stub_tuner);
+ pthread_mutex_lock(&stub_tuner->lock);
+ if (config == NULL) {
+ status = -EINVAL;
+ goto exit;
+ }
+ send_command_l(stub_tuner, CMD_CANCEL, 0, NULL);
+ send_command_l(stub_tuner, CMD_CONFIG, 500, (void *)config);
+
+exit:
+ pthread_mutex_unlock(&stub_tuner->lock);
+ return status;
+}
+
+static int tuner_get_configuration(const struct radio_tuner *tuner,
+ radio_hal_band_config_t *config)
+{
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+ int status = 0;
+ struct listnode *item;
+ radio_hal_band_config_t *src_config;
+
+ ALOGI("%s stub_tuner %p", __func__, stub_tuner);
+ pthread_mutex_lock(&stub_tuner->lock);
+ src_config = &stub_tuner->config;
+
+ if (config == NULL) {
+ status = -EINVAL;
+ goto exit;
+ }
+ list_for_each(item, &stub_tuner->command_list) {
+ struct thread_command *cmd = node_to_item(item, struct thread_command, node);
+ if (cmd->type == CMD_CONFIG) {
+ src_config = &cmd->config;
+ }
+ }
+ *config = *src_config;
+
+exit:
+ pthread_mutex_unlock(&stub_tuner->lock);
+ return status;
+}
+
+static int tuner_step(const struct radio_tuner *tuner,
+ radio_direction_t direction, bool skip_sub_channel)
+{
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+
+ ALOGI("%s stub_tuner %p direction %d, skip_sub_channel %d",
+ __func__, stub_tuner, direction, skip_sub_channel);
+
+ pthread_mutex_lock(&stub_tuner->lock);
+ send_command_l(stub_tuner, CMD_STEP, 20, &direction);
+ pthread_mutex_unlock(&stub_tuner->lock);
+ return 0;
+}
+
+static int tuner_scan(const struct radio_tuner *tuner,
+ radio_direction_t direction, bool skip_sub_channel)
+{
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+
+ ALOGI("%s stub_tuner %p direction %d, skip_sub_channel %d",
+ __func__, stub_tuner, direction, skip_sub_channel);
+
+ pthread_mutex_lock(&stub_tuner->lock);
+ send_command_l(stub_tuner, CMD_SCAN, 200, &direction);
+ pthread_mutex_unlock(&stub_tuner->lock);
+ return 0;
+}
+
+static int tuner_tune(const struct radio_tuner *tuner,
+ unsigned int channel, unsigned int sub_channel)
+{
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+
+ ALOGI("%s stub_tuner %p channel %d, sub_channel %d",
+ __func__, stub_tuner, channel, sub_channel);
+
+ pthread_mutex_lock(&stub_tuner->lock);
+ if (channel < stub_tuner->config.lower_limit || channel > stub_tuner->config.upper_limit) {
+ pthread_mutex_unlock(&stub_tuner->lock);
+ ALOGI("%s channel out of range", __func__);
+ return -EINVAL;
+ }
+ send_command_l(stub_tuner, CMD_TUNE, 100, &channel);
+ pthread_mutex_unlock(&stub_tuner->lock);
+ return 0;
+}
+
+static int tuner_cancel(const struct radio_tuner *tuner)
+{
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+
+ ALOGI("%s stub_tuner %p", __func__, stub_tuner);
+
+ pthread_mutex_lock(&stub_tuner->lock);
+ send_command_l(stub_tuner, CMD_CANCEL, 0, NULL);
+ pthread_mutex_unlock(&stub_tuner->lock);
+ return 0;
+}
+
+static int tuner_get_program_information(const struct radio_tuner *tuner,
+ radio_program_info_t *info)
+{
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+ int status = 0;
+ radio_metadata_t *metadata;
+
+ ALOGI("%s stub_tuner %p", __func__, stub_tuner);
+ pthread_mutex_lock(&stub_tuner->lock);
+ if (info == NULL) {
+ status = -EINVAL;
+ goto exit;
+ }
+ metadata = info->metadata;
+ *info = stub_tuner->program;
+ info->metadata = metadata;
+ if (metadata != NULL && stub_tuner->program.metadata != NULL)
+ radio_metadata_add_metadata(&info->metadata, stub_tuner->program.metadata);
+
+exit:
+ pthread_mutex_unlock(&stub_tuner->lock);
+ return status;
+}
+
+static int rdev_get_properties(const struct radio_hw_device *dev,
+ radio_hal_properties_t *properties)
+{
+ struct stub_radio_device *rdev = (struct stub_radio_device *)dev;
+
+ ALOGI("%s", __func__);
+ if (properties == NULL)
+ return -EINVAL;
+ memcpy(properties, &hw_properties, sizeof(radio_hal_properties_t));
+ return 0;
+}
+
+static int rdev_open_tuner(const struct radio_hw_device *dev,
+ const radio_hal_band_config_t *config,
+ bool audio,
+ radio_callback_t callback,
+ void *cookie,
+ const struct radio_tuner **tuner)
+{
+ struct stub_radio_device *rdev = (struct stub_radio_device *)dev;
+ int status = 0;
+
+ ALOGI("%s rdev %p", __func__, rdev);
+ pthread_mutex_lock(&rdev->lock);
+
+ if (rdev->tuner != NULL) {
+ status = -ENOSYS;
+ goto exit;
+ }
+
+ if (config == NULL || callback == NULL || tuner == NULL) {
+ status = -EINVAL;
+ goto exit;
+ }
+
+ rdev->tuner = (struct stub_radio_tuner *)calloc(1, sizeof(struct stub_radio_tuner));
+ if (rdev->tuner == NULL) {
+ status = -ENOMEM;
+ goto exit;
+ }
+
+ rdev->tuner->interface.set_configuration = tuner_set_configuration;
+ rdev->tuner->interface.get_configuration = tuner_get_configuration;
+ rdev->tuner->interface.scan = tuner_scan;
+ rdev->tuner->interface.step = tuner_step;
+ rdev->tuner->interface.tune = tuner_tune;
+ rdev->tuner->interface.cancel = tuner_cancel;
+ rdev->tuner->interface.get_program_information = tuner_get_program_information;
+
+ rdev->tuner->audio = audio;
+ rdev->tuner->callback = callback;
+ rdev->tuner->cookie = cookie;
+
+ rdev->tuner->dev = rdev;
+
+ pthread_mutex_init(&rdev->tuner->lock, (const pthread_mutexattr_t *) NULL);
+ pthread_cond_init(&rdev->tuner->cond, (const pthread_condattr_t *) NULL);
+ pthread_create(&rdev->tuner->callback_thread, (const pthread_attr_t *) NULL,
+ callback_thread_loop, rdev->tuner);
+ list_init(&rdev->tuner->command_list);
+
+ pthread_mutex_lock(&rdev->tuner->lock);
+ send_command_l(rdev->tuner, CMD_CONFIG, 500, (void *)config);
+ pthread_mutex_unlock(&rdev->tuner->lock);
+
+ *tuner = &rdev->tuner->interface;
+
+exit:
+ pthread_mutex_unlock(&rdev->lock);
+ ALOGI("%s DONE", __func__);
+ return status;
+}
+
+static int rdev_close_tuner(const struct radio_hw_device *dev,
+ const struct radio_tuner *tuner)
+{
+ struct stub_radio_device *rdev = (struct stub_radio_device *)dev;
+ struct stub_radio_tuner *stub_tuner = (struct stub_radio_tuner *)tuner;
+ int status = 0;
+
+ ALOGI("%s tuner %p", __func__, tuner);
+ pthread_mutex_lock(&rdev->lock);
+
+ if (tuner == NULL) {
+ status = -EINVAL;
+ goto exit;
+ }
+
+ pthread_mutex_lock(&stub_tuner->lock);
+ stub_tuner->callback = NULL;
+ send_command_l(stub_tuner, CMD_EXIT, 0, NULL);
+ pthread_mutex_unlock(&stub_tuner->lock);
+ pthread_join(stub_tuner->callback_thread, (void **) NULL);
+
+ if (stub_tuner->program.metadata != NULL)
+ radio_metadata_deallocate(stub_tuner->program.metadata);
+
+ free(stub_tuner);
+ rdev->tuner = NULL;
+
+exit:
+ pthread_mutex_unlock(&rdev->lock);
+ return status;
+}
+
+static int rdev_close(hw_device_t *device)
+{
+ struct stub_radio_device *rdev = (struct stub_radio_device *)device;
+ if (rdev != NULL) {
+ free(rdev->tuner);
+ }
+ free(rdev);
+ return 0;
+}
+
+static int rdev_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ struct stub_radio_device *rdev;
+ int ret;
+
+ if (strcmp(name, RADIO_HARDWARE_DEVICE) != 0)
+ return -EINVAL;
+
+ rdev = calloc(1, sizeof(struct stub_radio_device));
+ if (!rdev)
+ return -ENOMEM;
+
+ rdev->device.common.tag = HARDWARE_DEVICE_TAG;
+ rdev->device.common.version = RADIO_DEVICE_API_VERSION_1_0;
+ rdev->device.common.module = (struct hw_module_t *) module;
+ rdev->device.common.close = rdev_close;
+ rdev->device.get_properties = rdev_get_properties;
+ rdev->device.open_tuner = rdev_open_tuner;
+ rdev->device.close_tuner = rdev_close_tuner;
+
+ pthread_mutex_init(&rdev->lock, (const pthread_mutexattr_t *) NULL);
+
+ *device = &rdev->device.common;
+
+ return 0;
+}
+
+
+static struct hw_module_methods_t hal_module_methods = {
+ .open = rdev_open,
+};
+
+struct radio_module HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = RADIO_MODULE_API_VERSION_1_0,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = RADIO_HARDWARE_MODULE_ID,
+ .name = "Stub radio HAL",
+ .author = "The Android Open Source Project",
+ .methods = &hal_module_methods,
+ },
+};
diff --git a/libhardware/modules/sensors/Android.mk b/libhardware/modules/sensors/Android.mk
new file mode 100644
index 0000000..bf377c9
--- /dev/null
+++ b/libhardware/modules/sensors/Android.mk
@@ -0,0 +1,45 @@
+#
+# Copyright (C) 2013 The Android Open-Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+ifeq ($(USE_SENSOR_MULTI_HAL),true)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := sensors.$(TARGET_BOARD_PLATFORM)
+
+LOCAL_MODULE_RELATIVE_PATH := hw
+
+LOCAL_CFLAGS := -DLOG_TAG=\"MultiHal\"
+
+LOCAL_SRC_FILES := \
+ multihal.cpp \
+ SensorEventQueue.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils \
+ libdl \
+ liblog \
+ libutils \
+
+LOCAL_STRIP_MODULE := false
+
+include $(BUILD_SHARED_LIBRARY)
+
+endif # USE_SENSOR_MULTI_HAL
+
+include $(call all-makefiles-under, $(LOCAL_PATH))
diff --git a/libhardware/modules/sensors/SensorEventQueue.cpp b/libhardware/modules/sensors/SensorEventQueue.cpp
new file mode 100644
index 0000000..f6144f8
--- /dev/null
+++ b/libhardware/modules/sensors/SensorEventQueue.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hardware/sensors.h>
+#include <algorithm>
+#include <pthread.h>
+#include <cutils/log.h>
+
+#include "SensorEventQueue.h"
+
+SensorEventQueue::SensorEventQueue(int capacity) {
+ mCapacity = capacity;
+
+ mStart = 0;
+ mSize = 0;
+ mData = new sensors_event_t[mCapacity];
+ pthread_cond_init(&mSpaceAvailableCondition, NULL);
+}
+
+SensorEventQueue::~SensorEventQueue() {
+ delete[] mData;
+ mData = NULL;
+ pthread_cond_destroy(&mSpaceAvailableCondition);
+}
+
+int SensorEventQueue::getWritableRegion(int requestedLength, sensors_event_t** out) {
+ if (mSize == mCapacity || requestedLength <= 0) {
+ *out = NULL;
+ return 0;
+ }
+ // Start writing after the last readable record.
+ int firstWritable = (mStart + mSize) % mCapacity;
+
+ int lastWritable = firstWritable + requestedLength - 1;
+
+ // Don't go past the end of the data array.
+ if (lastWritable > mCapacity - 1) {
+ lastWritable = mCapacity - 1;
+ }
+ // Don't go into the readable region.
+ if (firstWritable < mStart && lastWritable >= mStart) {
+ lastWritable = mStart - 1;
+ }
+ *out = &mData[firstWritable];
+ return lastWritable - firstWritable + 1;
+}
+
+void SensorEventQueue::markAsWritten(int count) {
+ mSize += count;
+}
+
+int SensorEventQueue::getSize() {
+ return mSize;
+}
+
+sensors_event_t* SensorEventQueue::peek() {
+ if (mSize == 0) return NULL;
+ return &mData[mStart];
+}
+
+void SensorEventQueue::dequeue() {
+ if (mSize == 0) return;
+ if (mSize == mCapacity) {
+ pthread_cond_broadcast(&mSpaceAvailableCondition);
+ }
+ mSize--;
+ mStart = (mStart + 1) % mCapacity;
+}
+
+// returns true if it waited, or false if it was a no-op.
+bool SensorEventQueue::waitForSpace(pthread_mutex_t* mutex) {
+ bool waited = false;
+ while (mSize == mCapacity) {
+ waited = true;
+ pthread_cond_wait(&mSpaceAvailableCondition, mutex);
+ }
+ return waited;
+}
diff --git a/libhardware/modules/sensors/SensorEventQueue.h b/libhardware/modules/sensors/SensorEventQueue.h
new file mode 100644
index 0000000..9778e93
--- /dev/null
+++ b/libhardware/modules/sensors/SensorEventQueue.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SENSOREVENTQUEUE_H_
+#define SENSOREVENTQUEUE_H_
+
+#include <hardware/sensors.h>
+#include <pthread.h>
+
+/*
+ * Fixed-size circular queue, with an API developed around the sensor HAL poll() method.
+ * Poll() takes a pointer to a buffer, which is written by poll() before it returns.
+ * This class can provide a pointer to a spot in its internal buffer for poll() to
+ * write to, instead of using an intermediate buffer and a memcpy.
+ *
+ * Thread safety:
+ * Reading can be done safely after grabbing the mutex lock, while poll() writing in a separate
+ * thread without a mutex lock. But there can only be one writer at a time.
+ */
+class SensorEventQueue {
+ int mCapacity;
+ int mStart; // start of readable region
+ int mSize; // number of readable items
+ sensors_event_t* mData;
+ pthread_cond_t mSpaceAvailableCondition;
+
+public:
+ explicit SensorEventQueue(int capacity);
+ ~SensorEventQueue();
+
+ // Returns length of region, between zero and min(capacity, requestedLength). If there is any
+ // writable space, it will return a region of at least one. Because it must return
+ // a pointer to a contiguous region, it may return smaller regions as we approach the end of
+ // the data array.
+ // Only call while holding the lock.
+ // The region is not marked internally in any way. Subsequent calls may return overlapping
+ // regions. This class expects there to be exactly one writer at a time.
+ int getWritableRegion(int requestedLength, sensors_event_t** out);
+
+ // After writing to the region returned by getWritableRegion(), call this to indicate how
+ // many records were actually written.
+ // This increases size() by count.
+ // Only call while holding the lock.
+ void markAsWritten(int count);
+
+ // Gets the number of readable records.
+ // Only call while holding the lock.
+ int getSize();
+
+ // Returns pointer to the first readable record, or NULL if size() is zero.
+ // Only call this while holding the lock.
+ sensors_event_t* peek();
+
+ // This will decrease the size by one, freeing up the oldest readable event's slot for writing.
+ // Only call while holding the lock.
+ void dequeue();
+
+ // Blocks until space is available. No-op if there is already space.
+ // Returns true if it had to wait.
+ bool waitForSpace(pthread_mutex_t* mutex);
+};
+
+#endif // SENSOREVENTQUEUE_H_
diff --git a/libhardware/modules/sensors/multihal.cpp b/libhardware/modules/sensors/multihal.cpp
new file mode 100644
index 0000000..8330ff3
--- /dev/null
+++ b/libhardware/modules/sensors/multihal.cpp
@@ -0,0 +1,668 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hardware/sensors.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <math.h>
+#include <poll.h>
+#include <pthread.h>
+#include <cutils/atomic.h>
+
+#define LOG_NDEBUG 1
+#include <cutils/log.h>
+
+#include <vector>
+#include <string>
+#include <fstream>
+#include <map>
+#include <string>
+
+#include <stdio.h>
+#include <dlfcn.h>
+#include <SensorEventQueue.h>
+
+#include <limits.h>
+#include <stdlib.h>
+
+static const char* CONFIG_FILENAME = "/system/etc/sensors/hals.conf";
+static const int MAX_CONF_LINE_LENGTH = 1024;
+
+static pthread_mutex_t init_modules_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t init_sensors_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+// This mutex is shared by all queues
+static pthread_mutex_t queue_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+// Used to pause the multihal poll(). Broadcasted by sub-polling tasks if waiting_for_data.
+static pthread_cond_t data_available_cond = PTHREAD_COND_INITIALIZER;
+bool waiting_for_data = false;
+
+/*
+ * Vector of sub modules, whose indexes are referred to in this file as module_index.
+ */
+static std::vector<hw_module_t *> *sub_hw_modules = NULL;
+
+/*
+ * Comparable class that globally identifies a sensor, by module index and local handle.
+ * A module index is the module's index in sub_hw_modules.
+ * A local handle is the handle the sub-module assigns to a sensor.
+ */
+struct FullHandle {
+ int moduleIndex;
+ int localHandle;
+
+ bool operator<(const FullHandle &that) const {
+ if (moduleIndex < that.moduleIndex) {
+ return true;
+ }
+ if (moduleIndex > that.moduleIndex) {
+ return false;
+ }
+ return localHandle < that.localHandle;
+ }
+
+ bool operator==(const FullHandle &that) const {
+ return moduleIndex == that.moduleIndex && localHandle == that.localHandle;
+ }
+};
+
+std::map<int, FullHandle> global_to_full;
+std::map<FullHandle, int> full_to_global;
+int next_global_handle = 1;
+
+static int assign_global_handle(int module_index, int local_handle) {
+ int global_handle = next_global_handle++;
+ FullHandle full_handle;
+ full_handle.moduleIndex = module_index;
+ full_handle.localHandle = local_handle;
+ full_to_global[full_handle] = global_handle;
+ global_to_full[global_handle] = full_handle;
+ return global_handle;
+}
+
+// Returns the local handle, or -1 if it does not exist.
+static int get_local_handle(int global_handle) {
+ if (global_to_full.count(global_handle) == 0) {
+ ALOGW("Unknown global_handle %d", global_handle);
+ return -1;
+ }
+ return global_to_full[global_handle].localHandle;
+}
+
+// Returns the sub_hw_modules index of the module that contains the sensor associates with this
+// global_handle, or -1 if that global_handle does not exist.
+static int get_module_index(int global_handle) {
+ if (global_to_full.count(global_handle) == 0) {
+ ALOGW("Unknown global_handle %d", global_handle);
+ return -1;
+ }
+ FullHandle f = global_to_full[global_handle];
+ ALOGV("FullHandle for global_handle %d: moduleIndex %d, localHandle %d",
+ global_handle, f.moduleIndex, f.localHandle);
+ return f.moduleIndex;
+}
+
+// Returns the global handle for this full_handle, or -1 if the full_handle is unknown.
+static int get_global_handle(FullHandle* full_handle) {
+ int global_handle = -1;
+ if (full_to_global.count(*full_handle)) {
+ global_handle = full_to_global[*full_handle];
+ } else {
+ ALOGW("Unknown FullHandle: moduleIndex %d, localHandle %d",
+ full_handle->moduleIndex, full_handle->localHandle);
+ }
+ return global_handle;
+}
+
+static const int SENSOR_EVENT_QUEUE_CAPACITY = 20;
+
+struct TaskContext {
+ sensors_poll_device_t* device;
+ SensorEventQueue* queue;
+};
+
+void *writerTask(void* ptr) {
+ ALOGV("writerTask STARTS");
+ TaskContext* ctx = (TaskContext*)ptr;
+ sensors_poll_device_t* device = ctx->device;
+ SensorEventQueue* queue = ctx->queue;
+ sensors_event_t* buffer;
+ int eventsPolled;
+ while (1) {
+ pthread_mutex_lock(&queue_mutex);
+ if (queue->waitForSpace(&queue_mutex)) {
+ ALOGV("writerTask waited for space");
+ }
+ int bufferSize = queue->getWritableRegion(SENSOR_EVENT_QUEUE_CAPACITY, &buffer);
+ // Do blocking poll outside of lock
+ pthread_mutex_unlock(&queue_mutex);
+
+ ALOGV("writerTask before poll() - bufferSize = %d", bufferSize);
+ eventsPolled = device->poll(device, buffer, bufferSize);
+ ALOGV("writerTask poll() got %d events.", eventsPolled);
+ if (eventsPolled == 0) {
+ continue;
+ }
+ pthread_mutex_lock(&queue_mutex);
+ queue->markAsWritten(eventsPolled);
+ ALOGV("writerTask wrote %d events", eventsPolled);
+ if (waiting_for_data) {
+ ALOGV("writerTask - broadcast data_available_cond");
+ pthread_cond_broadcast(&data_available_cond);
+ }
+ pthread_mutex_unlock(&queue_mutex);
+ }
+ // never actually returns
+ return NULL;
+}
+
+/*
+ * Cache of all sensors, with original handles replaced by global handles.
+ * This will be handled to get_sensors_list() callers.
+ */
+static struct sensor_t const* global_sensors_list = NULL;
+static int global_sensors_count = -1;
+
+/*
+ * Extends a sensors_poll_device_1 by including all the sub-module's devices.
+ */
+struct sensors_poll_context_t {
+ /*
+ * This is the device that SensorDevice.cpp uses to make API calls
+ * to the multihal, which fans them out to sub-HALs.
+ */
+ sensors_poll_device_1 proxy_device; // must be first
+
+ void addSubHwDevice(struct hw_device_t*);
+
+ int activate(int handle, int enabled);
+ int setDelay(int handle, int64_t ns);
+ int poll(sensors_event_t* data, int count);
+ int batch(int handle, int flags, int64_t period_ns, int64_t timeout);
+ int flush(int handle);
+ int close();
+
+ std::vector<hw_device_t*> sub_hw_devices;
+ std::vector<SensorEventQueue*> queues;
+ std::vector<pthread_t> threads;
+ int nextReadIndex;
+
+ sensors_poll_device_t* get_v0_device_by_handle(int global_handle);
+ sensors_poll_device_1_t* get_v1_device_by_handle(int global_handle);
+ int get_device_version_by_handle(int global_handle);
+
+ void copy_event_remap_handle(sensors_event_t* src, sensors_event_t* dest, int sub_index);
+};
+
+void sensors_poll_context_t::addSubHwDevice(struct hw_device_t* sub_hw_device) {
+ ALOGV("addSubHwDevice");
+ this->sub_hw_devices.push_back(sub_hw_device);
+
+ SensorEventQueue *queue = new SensorEventQueue(SENSOR_EVENT_QUEUE_CAPACITY);
+ this->queues.push_back(queue);
+
+ TaskContext* taskContext = new TaskContext();
+ taskContext->device = (sensors_poll_device_t*) sub_hw_device;
+ taskContext->queue = queue;
+
+ pthread_t writerThread;
+ pthread_create(&writerThread, NULL, writerTask, taskContext);
+ this->threads.push_back(writerThread);
+}
+
+// Returns the device pointer, or NULL if the global handle is invalid.
+sensors_poll_device_t* sensors_poll_context_t::get_v0_device_by_handle(int global_handle) {
+ int sub_index = get_module_index(global_handle);
+ if (sub_index < 0 || sub_index >= this->sub_hw_devices.size()) {
+ return NULL;
+ }
+ return (sensors_poll_device_t*) this->sub_hw_devices[sub_index];
+}
+
+// Returns the device pointer, or NULL if the global handle is invalid.
+sensors_poll_device_1_t* sensors_poll_context_t::get_v1_device_by_handle(int global_handle) {
+ int sub_index = get_module_index(global_handle);
+ if (sub_index < 0 || sub_index >= this->sub_hw_devices.size()) {
+ return NULL;
+ }
+ return (sensors_poll_device_1_t*) this->sub_hw_devices[sub_index];
+}
+
+// Returns the device version, or -1 if the handle is invalid.
+int sensors_poll_context_t::get_device_version_by_handle(int handle) {
+ sensors_poll_device_t* v0 = this->get_v0_device_by_handle(handle);
+ if (v0) {
+ return v0->common.version;
+ } else {
+ return -1;
+ }
+}
+
+// Android L requires sensor HALs to be either 1_0 or 1_3 compliant
+#define HAL_VERSION_IS_COMPLIANT(version) \
+ (version == SENSORS_DEVICE_API_VERSION_1_0 || version >= SENSORS_DEVICE_API_VERSION_1_3)
+
+// Returns true if HAL is compliant, false if HAL is not compliant or if handle is invalid
+static bool halIsCompliant(sensors_poll_context_t *ctx, int handle) {
+ int version = ctx->get_device_version_by_handle(handle);
+ return version != -1 && HAL_VERSION_IS_COMPLIANT(version);
+}
+
+const char *apiNumToStr(int version) {
+ switch(version) {
+ case SENSORS_DEVICE_API_VERSION_1_0:
+ return "SENSORS_DEVICE_API_VERSION_1_0";
+ case SENSORS_DEVICE_API_VERSION_1_1:
+ return "SENSORS_DEVICE_API_VERSION_1_1";
+ case SENSORS_DEVICE_API_VERSION_1_2:
+ return "SENSORS_DEVICE_API_VERSION_1_2";
+ case SENSORS_DEVICE_API_VERSION_1_3:
+ return "SENSORS_DEVICE_API_VERSION_1_3";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+int sensors_poll_context_t::activate(int handle, int enabled) {
+ int retval = -EINVAL;
+ ALOGV("activate");
+ int local_handle = get_local_handle(handle);
+ sensors_poll_device_t* v0 = this->get_v0_device_by_handle(handle);
+ if (halIsCompliant(this, handle) && local_handle >= 0 && v0) {
+ retval = v0->activate(v0, local_handle, enabled);
+ } else {
+ ALOGE("IGNORING activate(enable %d) call to non-API-compliant sensor handle=%d !",
+ enabled, handle);
+ }
+ ALOGV("retval %d", retval);
+ return retval;
+}
+
+int sensors_poll_context_t::setDelay(int handle, int64_t ns) {
+ int retval = -EINVAL;
+ ALOGV("setDelay");
+ int local_handle = get_local_handle(handle);
+ sensors_poll_device_t* v0 = this->get_v0_device_by_handle(handle);
+ if (halIsCompliant(this, handle) && local_handle >= 0 && v0) {
+ retval = v0->setDelay(v0, local_handle, ns);
+ } else {
+ ALOGE("IGNORING setDelay() call for non-API-compliant sensor handle=%d !", handle);
+ }
+ ALOGV("retval %d", retval);
+ return retval;
+}
+
+void sensors_poll_context_t::copy_event_remap_handle(sensors_event_t* dest, sensors_event_t* src,
+ int sub_index) {
+ memcpy(dest, src, sizeof(struct sensors_event_t));
+ // A normal event's "sensor" field is a local handle. Convert it to a global handle.
+ // A meta-data event must have its sensor set to 0, but it has a nested event
+ // with a local handle that needs to be converted to a global handle.
+ FullHandle full_handle;
+ full_handle.moduleIndex = sub_index;
+
+ // If it's a metadata event, rewrite the inner payload, not the sensor field.
+ // If the event's sensor field is unregistered for any reason, rewrite the sensor field
+ // with a -1, instead of writing an incorrect but plausible sensor number, because
+ // get_global_handle() returns -1 for unknown FullHandles.
+ if (dest->type == SENSOR_TYPE_META_DATA) {
+ full_handle.localHandle = dest->meta_data.sensor;
+ dest->meta_data.sensor = get_global_handle(&full_handle);
+ } else {
+ full_handle.localHandle = dest->sensor;
+ dest->sensor = get_global_handle(&full_handle);
+ }
+}
+
+int sensors_poll_context_t::poll(sensors_event_t *data, int maxReads) {
+ ALOGV("poll");
+ int empties = 0;
+ int queueCount = 0;
+ int eventsRead = 0;
+
+ pthread_mutex_lock(&queue_mutex);
+ queueCount = (int)this->queues.size();
+ while (eventsRead == 0) {
+ while (empties < queueCount && eventsRead < maxReads) {
+ SensorEventQueue* queue = this->queues.at(this->nextReadIndex);
+ sensors_event_t* event = queue->peek();
+ if (event == NULL) {
+ empties++;
+ } else {
+ empties = 0;
+ this->copy_event_remap_handle(&data[eventsRead], event, nextReadIndex);
+ if (data[eventsRead].sensor == -1) {
+ // Bad handle, do not pass corrupted event upstream !
+ ALOGW("Dropping bad local handle event packet on the floor");
+ } else {
+ eventsRead++;
+ }
+ queue->dequeue();
+ }
+ this->nextReadIndex = (this->nextReadIndex + 1) % queueCount;
+ }
+ if (eventsRead == 0) {
+ // The queues have been scanned and none contain data, so wait.
+ ALOGV("poll stopping to wait for data");
+ waiting_for_data = true;
+ pthread_cond_wait(&data_available_cond, &queue_mutex);
+ waiting_for_data = false;
+ empties = 0;
+ }
+ }
+ pthread_mutex_unlock(&queue_mutex);
+ ALOGV("poll returning %d events.", eventsRead);
+
+ return eventsRead;
+}
+
+int sensors_poll_context_t::batch(int handle, int flags, int64_t period_ns, int64_t timeout) {
+ ALOGV("batch");
+ int retval = -EINVAL;
+ int local_handle = get_local_handle(handle);
+ sensors_poll_device_1_t* v1 = this->get_v1_device_by_handle(handle);
+ if (halIsCompliant(this, handle) && local_handle >= 0 && v1) {
+ retval = v1->batch(v1, local_handle, flags, period_ns, timeout);
+ } else {
+ ALOGE("IGNORING batch() call to non-API-compliant sensor handle=%d !", handle);
+ }
+ ALOGV("retval %d", retval);
+ return retval;
+}
+
+int sensors_poll_context_t::flush(int handle) {
+ ALOGV("flush");
+ int retval = -EINVAL;
+ int local_handle = get_local_handle(handle);
+ sensors_poll_device_1_t* v1 = this->get_v1_device_by_handle(handle);
+ if (halIsCompliant(this, handle) && local_handle >= 0 && v1) {
+ retval = v1->flush(v1, local_handle);
+ } else {
+ ALOGE("IGNORING flush() call to non-API-compliant sensor handle=%d !", handle);
+ }
+ ALOGV("retval %d", retval);
+ return retval;
+}
+
+int sensors_poll_context_t::close() {
+ ALOGV("close");
+ for (std::vector<hw_device_t*>::iterator it = this->sub_hw_devices.begin();
+ it != this->sub_hw_devices.end(); it++) {
+ hw_device_t* dev = *it;
+ int retval = dev->close(dev);
+ ALOGV("retval %d", retval);
+ }
+ return 0;
+}
+
+
+static int device__close(struct hw_device_t *dev) {
+ sensors_poll_context_t* ctx = (sensors_poll_context_t*) dev;
+ if (ctx != NULL) {
+ int retval = ctx->close();
+ delete ctx;
+ }
+ return 0;
+}
+
+static int device__activate(struct sensors_poll_device_t *dev, int handle,
+ int enabled) {
+ sensors_poll_context_t* ctx = (sensors_poll_context_t*) dev;
+ return ctx->activate(handle, enabled);
+}
+
+static int device__setDelay(struct sensors_poll_device_t *dev, int handle,
+ int64_t ns) {
+ sensors_poll_context_t* ctx = (sensors_poll_context_t*) dev;
+ return ctx->setDelay(handle, ns);
+}
+
+static int device__poll(struct sensors_poll_device_t *dev, sensors_event_t* data,
+ int count) {
+ sensors_poll_context_t* ctx = (sensors_poll_context_t*) dev;
+ return ctx->poll(data, count);
+}
+
+static int device__batch(struct sensors_poll_device_1 *dev, int handle,
+ int flags, int64_t period_ns, int64_t timeout) {
+ sensors_poll_context_t* ctx = (sensors_poll_context_t*) dev;
+ return ctx->batch(handle, flags, period_ns, timeout);
+}
+
+static int device__flush(struct sensors_poll_device_1 *dev, int handle) {
+ sensors_poll_context_t* ctx = (sensors_poll_context_t*) dev;
+ return ctx->flush(handle);
+}
+
+static int open_sensors(const struct hw_module_t* module, const char* name,
+ struct hw_device_t** device);
+
+static bool starts_with(const char* s, const char* prefix) {
+ if (s == NULL || prefix == NULL) {
+ return false;
+ }
+ size_t s_size = strlen(s);
+ size_t prefix_size = strlen(prefix);
+ return s_size >= prefix_size && strncmp(s, prefix, prefix_size) == 0;
+}
+
+/*
+ * Adds valid paths from the config file to the vector passed in.
+ * The vector must not be null.
+ */
+static void get_so_paths(std::vector<std::string> *so_paths) {
+ std::string line;
+ std::ifstream conf_file(CONFIG_FILENAME);
+
+ if(!conf_file) {
+ ALOGW("No multihal config file found at %s", CONFIG_FILENAME);
+ return;
+ }
+ ALOGV("Multihal config file found at %s", CONFIG_FILENAME);
+ while (std::getline(conf_file, line)) {
+ ALOGV("config file line: '%s'", line.c_str());
+ so_paths->push_back(line);
+ }
+}
+
+/*
+ * Ensures that the sub-module array is initialized.
+ * This can be first called from get_sensors_list or from open_sensors.
+ */
+static void lazy_init_modules() {
+ pthread_mutex_lock(&init_modules_mutex);
+ if (sub_hw_modules != NULL) {
+ pthread_mutex_unlock(&init_modules_mutex);
+ return;
+ }
+ std::vector<std::string> *so_paths = new std::vector<std::string>();
+ get_so_paths(so_paths);
+
+ // dlopen the module files and cache their module symbols in sub_hw_modules
+ sub_hw_modules = new std::vector<hw_module_t *>();
+ dlerror(); // clear any old errors
+ const char* sym = HAL_MODULE_INFO_SYM_AS_STR;
+ for (std::vector<std::string>::iterator it = so_paths->begin(); it != so_paths->end(); it++) {
+ const char* path = it->c_str();
+ void* lib_handle = dlopen(path, RTLD_LAZY);
+ if (lib_handle == NULL) {
+ ALOGW("dlerror(): %s", dlerror());
+ } else {
+ ALOGI("Loaded library from %s", path);
+ ALOGV("Opening symbol \"%s\"", sym);
+ // clear old errors
+ dlerror();
+ struct hw_module_t* module = (hw_module_t*) dlsym(lib_handle, sym);
+ const char* error;
+ if ((error = dlerror()) != NULL) {
+ ALOGW("Error calling dlsym: %s", error);
+ } else if (module == NULL) {
+ ALOGW("module == NULL");
+ } else {
+ ALOGV("Loaded symbols from \"%s\"", sym);
+ sub_hw_modules->push_back(module);
+ }
+ }
+ }
+ pthread_mutex_unlock(&init_modules_mutex);
+}
+
+/*
+ * Lazy-initializes global_sensors_count, global_sensors_list, and module_sensor_handles.
+ */
+static void lazy_init_sensors_list() {
+ ALOGV("lazy_init_sensors_list");
+ pthread_mutex_lock(&init_sensors_mutex);
+ if (global_sensors_list != NULL) {
+ // already initialized
+ pthread_mutex_unlock(&init_sensors_mutex);
+ ALOGV("lazy_init_sensors_list - early return");
+ return;
+ }
+
+ ALOGV("lazy_init_sensors_list needs to do work");
+ lazy_init_modules();
+
+ // Count all the sensors, then allocate an array of blanks.
+ global_sensors_count = 0;
+ const struct sensor_t *subhal_sensors_list;
+ for (std::vector<hw_module_t*>::iterator it = sub_hw_modules->begin();
+ it != sub_hw_modules->end(); it++) {
+ struct sensors_module_t *module = (struct sensors_module_t*) *it;
+ global_sensors_count += module->get_sensors_list(module, &subhal_sensors_list);
+ ALOGV("increased global_sensors_count to %d", global_sensors_count);
+ }
+
+ // The global_sensors_list is full of consts.
+ // Manipulate this non-const list, and point the const one to it when we're done.
+ sensor_t* mutable_sensor_list = new sensor_t[global_sensors_count];
+
+ // index of the next sensor to set in mutable_sensor_list
+ int mutable_sensor_index = 0;
+ int module_index = 0;
+
+ for (std::vector<hw_module_t*>::iterator it = sub_hw_modules->begin();
+ it != sub_hw_modules->end(); it++) {
+ hw_module_t *hw_module = *it;
+ ALOGV("examine one module");
+ // Read the sub-module's sensor list.
+ struct sensors_module_t *module = (struct sensors_module_t*) hw_module;
+ int module_sensor_count = module->get_sensors_list(module, &subhal_sensors_list);
+ ALOGV("the module has %d sensors", module_sensor_count);
+
+ // Copy the HAL's sensor list into global_sensors_list,
+ // with the handle changed to be a global handle.
+ for (int i = 0; i < module_sensor_count; i++) {
+ ALOGV("examining one sensor");
+ const struct sensor_t *local_sensor = &subhal_sensors_list[i];
+ int local_handle = local_sensor->handle;
+ memcpy(&mutable_sensor_list[mutable_sensor_index], local_sensor,
+ sizeof(struct sensor_t));
+
+ // Overwrite the global version's handle with a global handle.
+ int global_handle = assign_global_handle(module_index, local_handle);
+
+ mutable_sensor_list[mutable_sensor_index].handle = global_handle;
+ ALOGV("module_index %d, local_handle %d, global_handle %d",
+ module_index, local_handle, global_handle);
+
+ mutable_sensor_index++;
+ }
+ module_index++;
+ }
+ // Set the const static global_sensors_list to the mutable one allocated by this function.
+ global_sensors_list = mutable_sensor_list;
+
+ pthread_mutex_unlock(&init_sensors_mutex);
+ ALOGV("end lazy_init_sensors_list");
+}
+
+static int module__get_sensors_list(__unused struct sensors_module_t* module,
+ struct sensor_t const** list) {
+ ALOGV("module__get_sensors_list start");
+ lazy_init_sensors_list();
+ *list = global_sensors_list;
+ ALOGV("global_sensors_count: %d", global_sensors_count);
+ for (int i = 0; i < global_sensors_count; i++) {
+ ALOGV("sensor type: %d", global_sensors_list[i].type);
+ }
+ return global_sensors_count;
+}
+
+static struct hw_module_methods_t sensors_module_methods = {
+ open : open_sensors
+};
+
+struct sensors_module_t HAL_MODULE_INFO_SYM = {
+ common :{
+ tag : HARDWARE_MODULE_TAG,
+ version_major : 1,
+ version_minor : 1,
+ id : SENSORS_HARDWARE_MODULE_ID,
+ name : "MultiHal Sensor Module",
+ author : "Google, Inc",
+ methods : &sensors_module_methods,
+ dso : NULL,
+ reserved : {0},
+ },
+ get_sensors_list : module__get_sensors_list
+};
+
+static int open_sensors(const struct hw_module_t* hw_module, const char* name,
+ struct hw_device_t** hw_device_out) {
+ ALOGV("open_sensors begin...");
+
+ lazy_init_modules();
+
+ // Create proxy device, to return later.
+ sensors_poll_context_t *dev = new sensors_poll_context_t();
+ memset(dev, 0, sizeof(sensors_poll_device_1_t));
+ dev->proxy_device.common.tag = HARDWARE_DEVICE_TAG;
+ dev->proxy_device.common.version = SENSORS_DEVICE_API_VERSION_1_3;
+ dev->proxy_device.common.module = const_cast<hw_module_t*>(hw_module);
+ dev->proxy_device.common.close = device__close;
+ dev->proxy_device.activate = device__activate;
+ dev->proxy_device.setDelay = device__setDelay;
+ dev->proxy_device.poll = device__poll;
+ dev->proxy_device.batch = device__batch;
+ dev->proxy_device.flush = device__flush;
+
+ dev->nextReadIndex = 0;
+
+ // Open() the subhal modules. Remember their devices in a vector parallel to sub_hw_modules.
+ for (std::vector<hw_module_t*>::iterator it = sub_hw_modules->begin();
+ it != sub_hw_modules->end(); it++) {
+ sensors_module_t *sensors_module = (sensors_module_t*) *it;
+ struct hw_device_t* sub_hw_device;
+ int sub_open_result = sensors_module->common.methods->open(*it, name, &sub_hw_device);
+ if (!sub_open_result) {
+ if (!HAL_VERSION_IS_COMPLIANT(sub_hw_device->version)) {
+ ALOGE("SENSORS_DEVICE_API_VERSION_1_3 is required for all sensor HALs");
+ ALOGE("This HAL reports non-compliant API level : %s",
+ apiNumToStr(sub_hw_device->version));
+ ALOGE("Sensors belonging to this HAL will get ignored !");
+ }
+ dev->addSubHwDevice(sub_hw_device);
+ }
+ }
+
+ // Prepare the output param and return
+ *hw_device_out = &dev->proxy_device.common;
+ ALOGV("...open_sensors end");
+ return 0;
+}
diff --git a/libhardware/modules/sensors/tests/Android.mk b/libhardware/modules/sensors/tests/Android.mk
new file mode 100644
index 0000000..010bb90
--- /dev/null
+++ b/libhardware/modules/sensors/tests/Android.mk
@@ -0,0 +1,17 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+ SensorEventQueue_test.cpp
+
+#LOCAL_CFLAGS := -g
+LOCAL_MODULE := sensorstests
+
+LOCAL_STATIC_LIBRARIES := libcutils libutils
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/.. bionic
+
+LOCAL_LDLIBS += -lpthread
+
+include $(BUILD_HOST_EXECUTABLE)
diff --git a/libhardware/modules/sensors/tests/SensorEventQueue_test.cpp b/libhardware/modules/sensors/tests/SensorEventQueue_test.cpp
new file mode 100644
index 0000000..3218bb9
--- /dev/null
+++ b/libhardware/modules/sensors/tests/SensorEventQueue_test.cpp
@@ -0,0 +1,199 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <hardware/sensors.h>
+#include <pthread.h>
+#include <cutils/atomic.h>
+
+#include "SensorEventQueue.cpp"
+
+// Unit tests for the SensorEventQueue.
+
+// Run it like this:
+//
+// make sensorstests -j32 && \
+// out/host/linux-x86/obj/EXECUTABLES/sensorstests_intermediates/sensorstests
+
+bool checkWritableBufferSize(SensorEventQueue* queue, int requested, int expected) {
+ sensors_event_t* buffer;
+ int actual = queue->getWritableRegion(requested, &buffer);
+ if (actual != expected) {
+ printf("Expected buffer size was %d; actual was %d\n", expected, actual);
+ return false;
+ }
+ return true;
+}
+
+bool checkSize(SensorEventQueue* queue, int expected) {
+ int actual = queue->getSize();
+ if (actual != expected) {
+ printf("Expected queue size was %d; actual was %d\n", expected, actual);
+ return false;
+ }
+ return true;
+}
+
+bool checkInt(char* msg, int expected, int actual) {
+ if (actual != expected) {
+ printf("%s; expected %d; actual was %d\n", msg, expected, actual);
+ return false;
+ }
+ return true;
+}
+
+bool testSimpleWriteSizeCounts() {
+ printf("testSimpleWriteSizeCounts\n");
+ SensorEventQueue* queue = new SensorEventQueue(10);
+ if (!checkSize(queue, 0)) return false;
+ if (!checkWritableBufferSize(queue, 11, 10)) return false;
+ if (!checkWritableBufferSize(queue, 10, 10)) return false;
+ if (!checkWritableBufferSize(queue, 9, 9)) return false;
+
+ queue->markAsWritten(7);
+ if (!checkSize(queue, 7)) return false;
+ if (!checkWritableBufferSize(queue, 4, 3)) return false;
+ if (!checkWritableBufferSize(queue, 3, 3)) return false;
+ if (!checkWritableBufferSize(queue, 2, 2)) return false;
+
+ queue->markAsWritten(3);
+ if (!checkSize(queue, 10)) return false;
+ if (!checkWritableBufferSize(queue, 1, 0)) return false;
+
+ printf("passed\n");
+ return true;
+}
+
+bool testWrappingWriteSizeCounts() {
+ printf("testWrappingWriteSizeCounts\n");
+ SensorEventQueue* queue = new SensorEventQueue(10);
+ queue->markAsWritten(9);
+ if (!checkSize(queue, 9)) return false;
+
+ // dequeue from the front
+ queue->dequeue();
+ queue->dequeue();
+ if (!checkSize(queue, 7)) return false;
+ if (!checkWritableBufferSize(queue, 100, 1)) return false;
+
+ // Write all the way to the end.
+ queue->markAsWritten(1);
+ if (!checkSize(queue, 8)) return false;
+ // Now the two free spots in the front are available.
+ if (!checkWritableBufferSize(queue, 100, 2)) return false;
+
+ // Fill the queue again
+ queue->markAsWritten(2);
+ if (!checkSize(queue, 10)) return false;
+
+ printf("passed\n");
+ return true;
+}
+
+
+
+struct TaskContext {
+ bool success;
+ SensorEventQueue* queue;
+};
+
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t dataAvailableCond = PTHREAD_COND_INITIALIZER;
+
+int FULL_QUEUE_CAPACITY = 5;
+int FULL_QUEUE_EVENT_COUNT = 31;
+
+void *fullQueueWriterTask(void* ptr) {
+ TaskContext* ctx = (TaskContext*)ptr;
+ SensorEventQueue* queue = ctx->queue;
+ ctx->success = true;
+ int totalWaits = 0;
+ int totalWrites = 0;
+ sensors_event_t* buffer;
+
+ while (totalWrites < FULL_QUEUE_EVENT_COUNT) {
+ pthread_mutex_lock(&mutex);
+ if (queue->waitForSpace(&mutex)) {
+ totalWaits++;
+ printf(".");
+ }
+ int writableSize = queue->getWritableRegion(FULL_QUEUE_CAPACITY, &buffer);
+ queue->markAsWritten(writableSize);
+ totalWrites += writableSize;
+ for (int i = 0; i < writableSize; i++) {
+ printf("w");
+ }
+ pthread_cond_broadcast(&dataAvailableCond);
+ pthread_mutex_unlock(&mutex);
+ }
+ printf("\n");
+
+ ctx->success =
+ checkInt("totalWrites", FULL_QUEUE_EVENT_COUNT, totalWrites) &&
+ checkInt("totalWaits", FULL_QUEUE_EVENT_COUNT - FULL_QUEUE_CAPACITY, totalWaits);
+ return NULL;
+}
+
+bool fullQueueReaderShouldRead(int queueSize, int totalReads) {
+ if (queueSize == 0) {
+ return false;
+ }
+ int totalWrites = totalReads + queueSize;
+ return queueSize == FULL_QUEUE_CAPACITY || totalWrites == FULL_QUEUE_EVENT_COUNT;
+}
+
+void* fullQueueReaderTask(void* ptr) {
+ TaskContext* ctx = (TaskContext*)ptr;
+ SensorEventQueue* queue = ctx->queue;
+ int totalReads = 0;
+ while (totalReads < FULL_QUEUE_EVENT_COUNT) {
+ pthread_mutex_lock(&mutex);
+ // Only read if there are events,
+ // and either the queue is full, or if we're reading the last few events.
+ while (!fullQueueReaderShouldRead(queue->getSize(), totalReads)) {
+ pthread_cond_wait(&dataAvailableCond, &mutex);
+ }
+ queue->dequeue();
+ totalReads++;
+ printf("r");
+ pthread_mutex_unlock(&mutex);
+ }
+ printf("\n");
+ ctx->success = ctx->success && checkInt("totalreads", FULL_QUEUE_EVENT_COUNT, totalReads);
+ return NULL;
+}
+
+// Test internal queue-full waiting and broadcasting.
+bool testFullQueueIo() {
+ printf("testFullQueueIo\n");
+ SensorEventQueue* queue = new SensorEventQueue(FULL_QUEUE_CAPACITY);
+
+ TaskContext readerCtx;
+ readerCtx.success = true;
+ readerCtx.queue = queue;
+
+ TaskContext writerCtx;
+ writerCtx.success = true;
+ writerCtx.queue = queue;
+
+ pthread_t writer, reader;
+ pthread_create(&reader, NULL, fullQueueReaderTask, &readerCtx);
+ pthread_create(&writer, NULL, fullQueueWriterTask, &writerCtx);
+
+ pthread_join(writer, NULL);
+ pthread_join(reader, NULL);
+
+ if (!readerCtx.success || !writerCtx.success) return false;
+ printf("passed\n");
+ return true;
+}
+
+
+int main(int argc, char **argv) {
+ if (testSimpleWriteSizeCounts() &&
+ testWrappingWriteSizeCounts() &&
+ testFullQueueIo()) {
+ printf("ALL PASSED\n");
+ } else {
+ printf("SOMETHING FAILED\n");
+ }
+ return EXIT_SUCCESS;
+}
diff --git a/libhardware/modules/soundtrigger/Android.mk b/libhardware/modules/soundtrigger/Android.mk
new file mode 100644
index 0000000..325980c
--- /dev/null
+++ b/libhardware/modules/soundtrigger/Android.mk
@@ -0,0 +1,27 @@
+# Copyright (C) 2011 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+# Stub sound_trigger HAL module, used for tests
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := sound_trigger.stub.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := sound_trigger_hw.c
+LOCAL_SHARED_LIBRARIES := liblog libcutils
+LOCAL_MODULE_TAGS := optional
+LOCAL_32_BIT_ONLY := true
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libhardware/modules/soundtrigger/sound_trigger_hw.c b/libhardware/modules/soundtrigger/sound_trigger_hw.c
new file mode 100644
index 0000000..e7f9baf
--- /dev/null
+++ b/libhardware/modules/soundtrigger/sound_trigger_hw.c
@@ -0,0 +1,296 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "sound_trigger_hw_default"
+/*#define LOG_NDEBUG 0*/
+
+#include <errno.h>
+#include <pthread.h>
+#include <sys/prctl.h>
+#include <cutils/log.h>
+
+#include <hardware/hardware.h>
+#include <system/sound_trigger.h>
+#include <hardware/sound_trigger.h>
+
+static const struct sound_trigger_properties hw_properties = {
+ "The Android Open Source Project", // implementor
+ "Sound Trigger stub HAL", // description
+ 1, // version
+ { 0xed7a7d60, 0xc65e, 0x11e3, 0x9be4, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }, // uuid
+ 1, // max_sound_models
+ 1, // max_key_phrases
+ 1, // max_users
+ RECOGNITION_MODE_VOICE_TRIGGER, // recognition_modes
+ false, // capture_transition
+ 0, // max_buffer_ms
+ false, // concurrent_capture
+ false, // trigger_in_event
+ 0 // power_consumption_mw
+};
+
+struct stub_sound_trigger_device {
+ struct sound_trigger_hw_device device;
+ sound_model_handle_t model_handle;
+ recognition_callback_t recognition_callback;
+ void *recognition_cookie;
+ sound_model_callback_t sound_model_callback;
+ void *sound_model_cookie;
+ pthread_t callback_thread;
+ pthread_mutex_t lock;
+ pthread_cond_t cond;
+};
+
+
+static void *callback_thread_loop(void *context)
+{
+ struct stub_sound_trigger_device *stdev = (struct stub_sound_trigger_device *)context;
+ ALOGI("%s", __func__);
+
+ prctl(PR_SET_NAME, (unsigned long)"sound trigger callback", 0, 0, 0);
+
+ pthread_mutex_lock(&stdev->lock);
+ if (stdev->recognition_callback == NULL) {
+ goto exit;
+ }
+ struct timespec ts;
+ clock_gettime(CLOCK_REALTIME, &ts);
+ ts.tv_sec += 3;
+ ALOGI("%s wait 3 sec", __func__);
+ int rc = pthread_cond_timedwait(&stdev->cond, &stdev->lock, &ts);
+ if (rc == ETIMEDOUT && stdev->recognition_callback != NULL) {
+ char *data = (char *)calloc(1, sizeof(struct sound_trigger_phrase_recognition_event) + 1);
+ struct sound_trigger_phrase_recognition_event *event =
+ (struct sound_trigger_phrase_recognition_event *)data;
+ event->common.status = RECOGNITION_STATUS_SUCCESS;
+ event->common.type = SOUND_MODEL_TYPE_KEYPHRASE;
+ event->common.model = stdev->model_handle;
+ event->num_phrases = 1;
+ event->phrase_extras[0].recognition_modes = RECOGNITION_MODE_VOICE_TRIGGER;
+ event->phrase_extras[0].confidence_level = 100;
+ event->phrase_extras[0].num_levels = 1;
+ event->phrase_extras[0].levels[0].level = 100;
+ event->phrase_extras[0].levels[0].user_id = 0;
+ event->common.data_offset = sizeof(struct sound_trigger_phrase_recognition_event);
+ event->common.data_size = 1;
+ data[event->common.data_offset] = 8;
+ ALOGI("%s send callback model %d", __func__, stdev->model_handle);
+ stdev->recognition_callback(&event->common, stdev->recognition_cookie);
+ free(data);
+ } else {
+ ALOGI("%s abort recognition model %d", __func__, stdev->model_handle);
+ }
+ stdev->recognition_callback = NULL;
+
+exit:
+ pthread_mutex_unlock(&stdev->lock);
+
+ return NULL;
+}
+
+static int stdev_get_properties(const struct sound_trigger_hw_device *dev,
+ struct sound_trigger_properties *properties)
+{
+ struct stub_sound_trigger_device *stdev = (struct stub_sound_trigger_device *)dev;
+
+ ALOGI("%s", __func__);
+ if (properties == NULL)
+ return -EINVAL;
+ memcpy(properties, &hw_properties, sizeof(struct sound_trigger_properties));
+ return 0;
+}
+
+static int stdev_load_sound_model(const struct sound_trigger_hw_device *dev,
+ struct sound_trigger_sound_model *sound_model,
+ sound_model_callback_t callback,
+ void *cookie,
+ sound_model_handle_t *handle)
+{
+ struct stub_sound_trigger_device *stdev = (struct stub_sound_trigger_device *)dev;
+ int status = 0;
+
+ ALOGI("%s stdev %p", __func__, stdev);
+ pthread_mutex_lock(&stdev->lock);
+ if (handle == NULL || sound_model == NULL) {
+ status = -EINVAL;
+ goto exit;
+ }
+ if (sound_model->data_size == 0 ||
+ sound_model->data_offset < sizeof(struct sound_trigger_sound_model)) {
+ status = -EINVAL;
+ goto exit;
+ }
+
+ if (stdev->model_handle == 1) {
+ status = -ENOSYS;
+ goto exit;
+ }
+ char *data = (char *)sound_model + sound_model->data_offset;
+ ALOGI("%s data size %d data %d - %d", __func__,
+ sound_model->data_size, data[0], data[sound_model->data_size - 1]);
+ stdev->model_handle = 1;
+ stdev->sound_model_callback = callback;
+ stdev->sound_model_cookie = cookie;
+
+ *handle = stdev->model_handle;
+
+exit:
+ pthread_mutex_unlock(&stdev->lock);
+ return status;
+}
+
+static int stdev_unload_sound_model(const struct sound_trigger_hw_device *dev,
+ sound_model_handle_t handle)
+{
+ struct stub_sound_trigger_device *stdev = (struct stub_sound_trigger_device *)dev;
+ int status = 0;
+
+ ALOGI("%s handle %d", __func__, handle);
+ pthread_mutex_lock(&stdev->lock);
+ if (handle != 1) {
+ status = -EINVAL;
+ goto exit;
+ }
+ if (stdev->model_handle == 0) {
+ status = -ENOSYS;
+ goto exit;
+ }
+ stdev->model_handle = 0;
+ if (stdev->recognition_callback != NULL) {
+ stdev->recognition_callback = NULL;
+ pthread_cond_signal(&stdev->cond);
+ pthread_mutex_unlock(&stdev->lock);
+ pthread_join(stdev->callback_thread, (void **) NULL);
+ pthread_mutex_lock(&stdev->lock);
+ }
+
+exit:
+ pthread_mutex_unlock(&stdev->lock);
+ return status;
+}
+
+static int stdev_start_recognition(const struct sound_trigger_hw_device *dev,
+ sound_model_handle_t sound_model_handle,
+ const struct sound_trigger_recognition_config *config,
+ recognition_callback_t callback,
+ void *cookie)
+{
+ struct stub_sound_trigger_device *stdev = (struct stub_sound_trigger_device *)dev;
+ int status = 0;
+ ALOGI("%s sound model %d", __func__, sound_model_handle);
+ pthread_mutex_lock(&stdev->lock);
+ if (stdev->model_handle != sound_model_handle) {
+ status = -ENOSYS;
+ goto exit;
+ }
+ if (stdev->recognition_callback != NULL) {
+ status = -ENOSYS;
+ goto exit;
+ }
+ if (config->data_size != 0) {
+ char *data = (char *)config + config->data_offset;
+ ALOGI("%s data size %d data %d - %d", __func__,
+ config->data_size, data[0], data[config->data_size - 1]);
+ }
+
+ stdev->recognition_callback = callback;
+ stdev->recognition_cookie = cookie;
+ pthread_create(&stdev->callback_thread, (const pthread_attr_t *) NULL,
+ callback_thread_loop, stdev);
+exit:
+ pthread_mutex_unlock(&stdev->lock);
+ return status;
+}
+
+static int stdev_stop_recognition(const struct sound_trigger_hw_device *dev,
+ sound_model_handle_t sound_model_handle)
+{
+ struct stub_sound_trigger_device *stdev = (struct stub_sound_trigger_device *)dev;
+ int status = 0;
+ ALOGI("%s sound model %d", __func__, sound_model_handle);
+ pthread_mutex_lock(&stdev->lock);
+ if (stdev->model_handle != sound_model_handle) {
+ status = -ENOSYS;
+ goto exit;
+ }
+ if (stdev->recognition_callback == NULL) {
+ status = -ENOSYS;
+ goto exit;
+ }
+ stdev->recognition_callback = NULL;
+ pthread_cond_signal(&stdev->cond);
+ pthread_mutex_unlock(&stdev->lock);
+ pthread_join(stdev->callback_thread, (void **) NULL);
+ pthread_mutex_lock(&stdev->lock);
+
+exit:
+ pthread_mutex_unlock(&stdev->lock);
+ return status;
+}
+
+
+static int stdev_close(hw_device_t *device)
+{
+ free(device);
+ return 0;
+}
+
+static int stdev_open(const hw_module_t* module, const char* name,
+ hw_device_t** device)
+{
+ struct stub_sound_trigger_device *stdev;
+ int ret;
+
+ if (strcmp(name, SOUND_TRIGGER_HARDWARE_INTERFACE) != 0)
+ return -EINVAL;
+
+ stdev = calloc(1, sizeof(struct stub_sound_trigger_device));
+ if (!stdev)
+ return -ENOMEM;
+
+ stdev->device.common.tag = HARDWARE_DEVICE_TAG;
+ stdev->device.common.version = SOUND_TRIGGER_DEVICE_API_VERSION_1_0;
+ stdev->device.common.module = (struct hw_module_t *) module;
+ stdev->device.common.close = stdev_close;
+ stdev->device.get_properties = stdev_get_properties;
+ stdev->device.load_sound_model = stdev_load_sound_model;
+ stdev->device.unload_sound_model = stdev_unload_sound_model;
+ stdev->device.start_recognition = stdev_start_recognition;
+ stdev->device.stop_recognition = stdev_stop_recognition;
+
+ pthread_mutex_init(&stdev->lock, (const pthread_mutexattr_t *) NULL);
+ pthread_cond_init(&stdev->cond, (const pthread_condattr_t *) NULL);
+
+ *device = &stdev->device.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t hal_module_methods = {
+ .open = stdev_open,
+};
+
+struct sound_trigger_module HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = SOUND_TRIGGER_MODULE_API_VERSION_1_0,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = SOUND_TRIGGER_HARDWARE_MODULE_ID,
+ .name = "Default sound trigger HAL",
+ .author = "The Android Open Source Project",
+ .methods = &hal_module_methods,
+ },
+};
diff --git a/libhardware/modules/tv_input/Android.bp b/libhardware/modules/tv_input/Android.bp
new file mode 100644
index 0000000..beac132
--- /dev/null
+++ b/libhardware/modules/tv_input/Android.bp
@@ -0,0 +1,23 @@
+// Copyright (C) 2014 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+ name: "tv_input.default",
+ relative_install_path: "hw",
+ shared_libs: [
+ "libcutils",
+ "liblog",
+ ],
+ srcs: ["tv_input.cpp"],
+}
diff --git a/libhardware/modules/tv_input/tv_input.cpp b/libhardware/modules/tv_input/tv_input.cpp
new file mode 100644
index 0000000..114e80e
--- /dev/null
+++ b/libhardware/modules/tv_input/tv_input.cpp
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <malloc.h>
+
+#include <cutils/log.h>
+#include <cutils/native_handle.h>
+
+#include <hardware/tv_input.h>
+
+/*****************************************************************************/
+
+typedef struct tv_input_private {
+ tv_input_device_t device;
+
+ // Callback related data
+ const tv_input_callback_ops_t* callback;
+ void* callback_data;
+} tv_input_private_t;
+
+static int tv_input_device_open(const struct hw_module_t* module,
+ const char* name, struct hw_device_t** device);
+
+static struct hw_module_methods_t tv_input_module_methods = {
+ open: tv_input_device_open
+};
+
+tv_input_module_t HAL_MODULE_INFO_SYM = {
+ common: {
+ tag: HARDWARE_MODULE_TAG,
+ version_major: 0,
+ version_minor: 1,
+ id: TV_INPUT_HARDWARE_MODULE_ID,
+ name: "Sample TV input module",
+ author: "The Android Open Source Project",
+ methods: &tv_input_module_methods,
+ }
+};
+
+/*****************************************************************************/
+
+static int tv_input_initialize(struct tv_input_device* dev,
+ const tv_input_callback_ops_t* callback, void* data)
+{
+ if (dev == NULL || callback == NULL) {
+ return -EINVAL;
+ }
+ tv_input_private_t* priv = (tv_input_private_t*)dev;
+ if (priv->callback != NULL) {
+ return -EEXIST;
+ }
+
+ priv->callback = callback;
+ priv->callback_data = data;
+
+ return 0;
+}
+
+static int tv_input_get_stream_configurations(
+ const struct tv_input_device*, int, int*, const tv_stream_config_t**)
+{
+ return -EINVAL;
+}
+
+static int tv_input_open_stream(struct tv_input_device*, int, tv_stream_t*)
+{
+ return -EINVAL;
+}
+
+static int tv_input_close_stream(struct tv_input_device*, int, int)
+{
+ return -EINVAL;
+}
+
+static int tv_input_request_capture(
+ struct tv_input_device*, int, int, buffer_handle_t, uint32_t)
+{
+ return -EINVAL;
+}
+
+static int tv_input_cancel_capture(struct tv_input_device*, int, int, uint32_t)
+{
+ return -EINVAL;
+}
+
+/*****************************************************************************/
+
+static int tv_input_device_close(struct hw_device_t *dev)
+{
+ tv_input_private_t* priv = (tv_input_private_t*)dev;
+ if (priv) {
+ free(priv);
+ }
+ return 0;
+}
+
+/*****************************************************************************/
+
+static int tv_input_device_open(const struct hw_module_t* module,
+ const char* name, struct hw_device_t** device)
+{
+ int status = -EINVAL;
+ if (!strcmp(name, TV_INPUT_DEFAULT_DEVICE)) {
+ tv_input_private_t* dev = (tv_input_private_t*)malloc(sizeof(*dev));
+
+ /* initialize our state here */
+ memset(dev, 0, sizeof(*dev));
+
+ /* initialize the procs */
+ dev->device.common.tag = HARDWARE_DEVICE_TAG;
+ dev->device.common.version = TV_INPUT_DEVICE_API_VERSION_0_1;
+ dev->device.common.module = const_cast<hw_module_t*>(module);
+ dev->device.common.close = tv_input_device_close;
+
+ dev->device.initialize = tv_input_initialize;
+ dev->device.get_stream_configurations =
+ tv_input_get_stream_configurations;
+ dev->device.open_stream = tv_input_open_stream;
+ dev->device.close_stream = tv_input_close_stream;
+ dev->device.request_capture = tv_input_request_capture;
+ dev->device.cancel_capture = tv_input_cancel_capture;
+
+ *device = &dev->device.common;
+ status = 0;
+ }
+ return status;
+}
diff --git a/libhardware/modules/usbaudio/Android.mk b/libhardware/modules/usbaudio/Android.mk
new file mode 100644
index 0000000..9df1e79
--- /dev/null
+++ b/libhardware/modules/usbaudio/Android.mk
@@ -0,0 +1,32 @@
+# Copyright (C) 2012 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := audio.usb.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_SRC_FILES := \
+ audio_hal.c
+LOCAL_C_INCLUDES += \
+ external/tinyalsa/include \
+ $(call include-path-for, audio-utils) \
+ $(call include-path-for, alsa-utils)
+LOCAL_SHARED_LIBRARIES := liblog libcutils libtinyalsa libaudioutils libalsautils
+LOCAL_MODULE_TAGS := optional
+LOCAL_CFLAGS := -Wno-unused-parameter
+
+include $(BUILD_SHARED_LIBRARY)
+
diff --git a/libhardware/modules/usbaudio/audio_hal.c b/libhardware/modules/usbaudio/audio_hal.c
new file mode 100644
index 0000000..38fea86
--- /dev/null
+++ b/libhardware/modules/usbaudio/audio_hal.c
@@ -0,0 +1,1088 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "modules.usbaudio.audio_hal"
+/*#define LOG_NDEBUG 0*/
+
+#include <errno.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/time.h>
+
+#include <log/log.h>
+#include <cutils/str_parms.h>
+#include <cutils/properties.h>
+
+#include <hardware/audio.h>
+#include <hardware/audio_alsaops.h>
+#include <hardware/hardware.h>
+
+#include <system/audio.h>
+
+#include <tinyalsa/asoundlib.h>
+
+#include <audio_utils/channels.h>
+
+/* FOR TESTING:
+ * Set k_force_channels to force the number of channels to present to AudioFlinger.
+ * 0 disables (this is default: present the device channels to AudioFlinger).
+ * 2 forces to legacy stereo mode.
+ *
+ * Others values can be tried (up to 8).
+ * TODO: AudioFlinger cannot support more than 8 active output channels
+ * at this time, so limiting logic needs to be put here or communicated from above.
+ */
+static const unsigned k_force_channels = 0;
+
+#include "alsa_device_profile.h"
+#include "alsa_device_proxy.h"
+#include "alsa_logging.h"
+
+#define DEFAULT_INPUT_BUFFER_SIZE_MS 20
+
+// stereo channel count
+#define FCC_2 2
+// fixed channel count of 8 limitation (for data processing in AudioFlinger)
+#define FCC_8 8
+
+struct audio_device {
+ struct audio_hw_device hw_device;
+
+ pthread_mutex_t lock; /* see note below on mutex acquisition order */
+
+ /* output */
+ alsa_device_profile out_profile;
+
+ /* input */
+ alsa_device_profile in_profile;
+
+ bool mic_muted;
+
+ bool standby;
+};
+
+struct stream_out {
+ struct audio_stream_out stream;
+
+ pthread_mutex_t lock; /* see note below on mutex acquisition order */
+ pthread_mutex_t pre_lock; /* acquire before lock to avoid DOS by playback thread */
+ bool standby;
+
+ struct audio_device *dev; /* hardware information - only using this for the lock */
+
+ alsa_device_profile * profile; /* Points to the alsa_device_profile in the audio_device */
+ alsa_device_proxy proxy; /* state of the stream */
+
+ unsigned hal_channel_count; /* channel count exposed to AudioFlinger.
+ * This may differ from the device channel count when
+ * the device is not compatible with AudioFlinger
+ * capabilities, e.g. exposes too many channels or
+ * too few channels. */
+ audio_channel_mask_t hal_channel_mask; /* channel mask exposed to AudioFlinger. */
+
+ void * conversion_buffer; /* any conversions are put into here
+ * they could come from here too if
+ * there was a previous conversion */
+ size_t conversion_buffer_size; /* in bytes */
+};
+
+struct stream_in {
+ struct audio_stream_in stream;
+
+ pthread_mutex_t lock; /* see note below on mutex acquisition order */
+ pthread_mutex_t pre_lock; /* acquire before lock to avoid DOS by capture thread */
+ bool standby;
+
+ struct audio_device *dev; /* hardware information - only using this for the lock */
+
+ alsa_device_profile * profile; /* Points to the alsa_device_profile in the audio_device */
+ alsa_device_proxy proxy; /* state of the stream */
+
+ unsigned hal_channel_count; /* channel count exposed to AudioFlinger.
+ * This may differ from the device channel count when
+ * the device is not compatible with AudioFlinger
+ * capabilities, e.g. exposes too many channels or
+ * too few channels. */
+ audio_channel_mask_t hal_channel_mask; /* channel mask exposed to AudioFlinger. */
+
+ /* We may need to read more data from the device in order to data reduce to 16bit, 4chan */
+ void * conversion_buffer; /* any conversions are put into here
+ * they could come from here too if
+ * there was a previous conversion */
+ size_t conversion_buffer_size; /* in bytes */
+};
+
+/*
+ * NOTE: when multiple mutexes have to be acquired, always take the
+ * stream_in or stream_out mutex first, followed by the audio_device mutex.
+ * stream pre_lock is always acquired before stream lock to prevent starvation of control thread by
+ * higher priority playback or capture thread.
+ */
+
+/*
+ * Extract the card and device numbers from the supplied key/value pairs.
+ * kvpairs A null-terminated string containing the key/value pairs or card and device.
+ * i.e. "card=1;device=42"
+ * card A pointer to a variable to receive the parsed-out card number.
+ * device A pointer to a variable to receive the parsed-out device number.
+ * NOTE: The variables pointed to by card and device return -1 (undefined) if the
+ * associated key/value pair is not found in the provided string.
+ * Return true if the kvpairs string contain a card/device spec, false otherwise.
+ */
+static bool parse_card_device_params(const char *kvpairs, int *card, int *device)
+{
+ struct str_parms * parms = str_parms_create_str(kvpairs);
+ char value[32];
+ int param_val;
+
+ // initialize to "undefined" state.
+ *card = -1;
+ *device = -1;
+
+ param_val = str_parms_get_str(parms, "card", value, sizeof(value));
+ if (param_val >= 0) {
+ *card = atoi(value);
+ }
+
+ param_val = str_parms_get_str(parms, "device", value, sizeof(value));
+ if (param_val >= 0) {
+ *device = atoi(value);
+ }
+
+ str_parms_destroy(parms);
+
+ return *card >= 0 && *device >= 0;
+}
+
+static char * device_get_parameters(alsa_device_profile * profile, const char * keys)
+{
+ if (profile->card < 0 || profile->device < 0) {
+ return strdup("");
+ }
+
+ struct str_parms *query = str_parms_create_str(keys);
+ struct str_parms *result = str_parms_create();
+
+ /* These keys are from hardware/libhardware/include/audio.h */
+ /* supported sample rates */
+ if (str_parms_has_key(query, AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES)) {
+ char* rates_list = profile_get_sample_rate_strs(profile);
+ str_parms_add_str(result, AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES,
+ rates_list);
+ free(rates_list);
+ }
+
+ /* supported channel counts */
+ if (str_parms_has_key(query, AUDIO_PARAMETER_STREAM_SUP_CHANNELS)) {
+ char* channels_list = profile_get_channel_count_strs(profile);
+ str_parms_add_str(result, AUDIO_PARAMETER_STREAM_SUP_CHANNELS,
+ channels_list);
+ free(channels_list);
+ }
+
+ /* supported sample formats */
+ if (str_parms_has_key(query, AUDIO_PARAMETER_STREAM_SUP_FORMATS)) {
+ char * format_params = profile_get_format_strs(profile);
+ str_parms_add_str(result, AUDIO_PARAMETER_STREAM_SUP_FORMATS,
+ format_params);
+ free(format_params);
+ }
+ str_parms_destroy(query);
+
+ char* result_str = str_parms_to_str(result);
+ str_parms_destroy(result);
+
+ ALOGV("device_get_parameters = %s", result_str);
+
+ return result_str;
+}
+
+void lock_input_stream(struct stream_in *in)
+{
+ pthread_mutex_lock(&in->pre_lock);
+ pthread_mutex_lock(&in->lock);
+ pthread_mutex_unlock(&in->pre_lock);
+}
+
+void lock_output_stream(struct stream_out *out)
+{
+ pthread_mutex_lock(&out->pre_lock);
+ pthread_mutex_lock(&out->lock);
+ pthread_mutex_unlock(&out->pre_lock);
+}
+
+/*
+ * HAl Functions
+ */
+/**
+ * NOTE: when multiple mutexes have to be acquired, always respect the
+ * following order: hw device > out stream
+ */
+
+/*
+ * OUT functions
+ */
+static uint32_t out_get_sample_rate(const struct audio_stream *stream)
+{
+ uint32_t rate = proxy_get_sample_rate(&((struct stream_out*)stream)->proxy);
+ ALOGV("out_get_sample_rate() = %d", rate);
+ return rate;
+}
+
+static int out_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+ return 0;
+}
+
+static size_t out_get_buffer_size(const struct audio_stream *stream)
+{
+ const struct stream_out* out = (const struct stream_out*)stream;
+ size_t buffer_size =
+ proxy_get_period_size(&out->proxy) * audio_stream_out_frame_size(&(out->stream));
+ return buffer_size;
+}
+
+static uint32_t out_get_channels(const struct audio_stream *stream)
+{
+ const struct stream_out *out = (const struct stream_out*)stream;
+ return out->hal_channel_mask;
+}
+
+static audio_format_t out_get_format(const struct audio_stream *stream)
+{
+ /* Note: The HAL doesn't do any FORMAT conversion at this time. It
+ * Relies on the framework to provide data in the specified format.
+ * This could change in the future.
+ */
+ alsa_device_proxy * proxy = &((struct stream_out*)stream)->proxy;
+ audio_format_t format = audio_format_from_pcm_format(proxy_get_format(proxy));
+ return format;
+}
+
+static int out_set_format(struct audio_stream *stream, audio_format_t format)
+{
+ return 0;
+}
+
+static int out_standby(struct audio_stream *stream)
+{
+ struct stream_out *out = (struct stream_out *)stream;
+
+ lock_output_stream(out);
+ if (!out->standby) {
+ pthread_mutex_lock(&out->dev->lock);
+ proxy_close(&out->proxy);
+ pthread_mutex_unlock(&out->dev->lock);
+ out->standby = true;
+ }
+ pthread_mutex_unlock(&out->lock);
+
+ return 0;
+}
+
+static int out_dump(const struct audio_stream *stream, int fd)
+{
+ return 0;
+}
+
+static int out_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+ ALOGV("out_set_parameters() keys:%s", kvpairs);
+
+ struct stream_out *out = (struct stream_out *)stream;
+
+ int routing = 0;
+ int ret_value = 0;
+ int card = -1;
+ int device = -1;
+
+ if (!parse_card_device_params(kvpairs, &card, &device)) {
+ // nothing to do
+ return ret_value;
+ }
+
+ lock_output_stream(out);
+ /* Lock the device because that is where the profile lives */
+ pthread_mutex_lock(&out->dev->lock);
+
+ if (!profile_is_cached_for(out->profile, card, device)) {
+ /* cannot read pcm device info if playback is active */
+ if (!out->standby)
+ ret_value = -ENOSYS;
+ else {
+ int saved_card = out->profile->card;
+ int saved_device = out->profile->device;
+ out->profile->card = card;
+ out->profile->device = device;
+ ret_value = profile_read_device_info(out->profile) ? 0 : -EINVAL;
+ if (ret_value != 0) {
+ out->profile->card = saved_card;
+ out->profile->device = saved_device;
+ }
+ }
+ }
+
+ pthread_mutex_unlock(&out->dev->lock);
+ pthread_mutex_unlock(&out->lock);
+
+ return ret_value;
+}
+
+static char * out_get_parameters(const struct audio_stream *stream, const char *keys)
+{
+ struct stream_out *out = (struct stream_out *)stream;
+ lock_output_stream(out);
+ pthread_mutex_lock(&out->dev->lock);
+
+ char * params_str = device_get_parameters(out->profile, keys);
+
+ pthread_mutex_unlock(&out->lock);
+ pthread_mutex_unlock(&out->dev->lock);
+
+ return params_str;
+}
+
+static uint32_t out_get_latency(const struct audio_stream_out *stream)
+{
+ alsa_device_proxy * proxy = &((struct stream_out*)stream)->proxy;
+ return proxy_get_latency(proxy);
+}
+
+static int out_set_volume(struct audio_stream_out *stream, float left, float right)
+{
+ return -ENOSYS;
+}
+
+/* must be called with hw device and output stream mutexes locked */
+static int start_output_stream(struct stream_out *out)
+{
+ ALOGV("start_output_stream(card:%d device:%d)", out->profile->card, out->profile->device);
+
+ return proxy_open(&out->proxy);
+}
+
+static ssize_t out_write(struct audio_stream_out *stream, const void* buffer, size_t bytes)
+{
+ int ret;
+ struct stream_out *out = (struct stream_out *)stream;
+
+ lock_output_stream(out);
+ if (out->standby) {
+ pthread_mutex_lock(&out->dev->lock);
+ ret = start_output_stream(out);
+ pthread_mutex_unlock(&out->dev->lock);
+ if (ret != 0) {
+ goto err;
+ }
+ out->standby = false;
+ }
+
+ alsa_device_proxy* proxy = &out->proxy;
+ const void * write_buff = buffer;
+ int num_write_buff_bytes = bytes;
+ const int num_device_channels = proxy_get_channel_count(proxy); /* what we told alsa */
+ const int num_req_channels = out->hal_channel_count; /* what we told AudioFlinger */
+ if (num_device_channels != num_req_channels) {
+ /* allocate buffer */
+ const size_t required_conversion_buffer_size =
+ bytes * num_device_channels / num_req_channels;
+ if (required_conversion_buffer_size > out->conversion_buffer_size) {
+ out->conversion_buffer_size = required_conversion_buffer_size;
+ out->conversion_buffer = realloc(out->conversion_buffer,
+ out->conversion_buffer_size);
+ }
+ /* convert data */
+ const audio_format_t audio_format = out_get_format(&(out->stream.common));
+ const unsigned sample_size_in_bytes = audio_bytes_per_sample(audio_format);
+ num_write_buff_bytes =
+ adjust_channels(write_buff, num_req_channels,
+ out->conversion_buffer, num_device_channels,
+ sample_size_in_bytes, num_write_buff_bytes);
+ write_buff = out->conversion_buffer;
+ }
+
+ if (write_buff != NULL && num_write_buff_bytes != 0) {
+ proxy_write(&out->proxy, write_buff, num_write_buff_bytes);
+ }
+
+ pthread_mutex_unlock(&out->lock);
+
+ return bytes;
+
+err:
+ pthread_mutex_unlock(&out->lock);
+ if (ret != 0) {
+ usleep(bytes * 1000000 / audio_stream_out_frame_size(stream) /
+ out_get_sample_rate(&stream->common));
+ }
+
+ return bytes;
+}
+
+static int out_get_render_position(const struct audio_stream_out *stream, uint32_t *dsp_frames)
+{
+ return -EINVAL;
+}
+
+static int out_get_presentation_position(const struct audio_stream_out *stream,
+ uint64_t *frames, struct timespec *timestamp)
+{
+ struct stream_out *out = (struct stream_out *)stream; // discard const qualifier
+ lock_output_stream(out);
+
+ const alsa_device_proxy *proxy = &out->proxy;
+ const int ret = proxy_get_presentation_position(proxy, frames, timestamp);
+
+ pthread_mutex_unlock(&out->lock);
+ ALOGV("out_get_presentation_position() status:%d frames:%llu",
+ ret, (unsigned long long)*frames);
+ return ret;
+}
+
+static int out_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ return 0;
+}
+
+static int out_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ return 0;
+}
+
+static int out_get_next_write_timestamp(const struct audio_stream_out *stream, int64_t *timestamp)
+{
+ return -EINVAL;
+}
+
+static int adev_open_output_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ audio_output_flags_t flags,
+ struct audio_config *config,
+ struct audio_stream_out **stream_out,
+ const char *address /*__unused*/)
+{
+ ALOGV("adev_open_output_stream() handle:0x%X, device:0x%X, flags:0x%X, addr:%s",
+ handle, devices, flags, address);
+
+ struct audio_device *adev = (struct audio_device *)dev;
+
+ struct stream_out *out;
+
+ out = (struct stream_out *)calloc(1, sizeof(struct stream_out));
+ if (!out)
+ return -ENOMEM;
+
+ /* setup function pointers */
+ out->stream.common.get_sample_rate = out_get_sample_rate;
+ out->stream.common.set_sample_rate = out_set_sample_rate;
+ out->stream.common.get_buffer_size = out_get_buffer_size;
+ out->stream.common.get_channels = out_get_channels;
+ out->stream.common.get_format = out_get_format;
+ out->stream.common.set_format = out_set_format;
+ out->stream.common.standby = out_standby;
+ out->stream.common.dump = out_dump;
+ out->stream.common.set_parameters = out_set_parameters;
+ out->stream.common.get_parameters = out_get_parameters;
+ out->stream.common.add_audio_effect = out_add_audio_effect;
+ out->stream.common.remove_audio_effect = out_remove_audio_effect;
+ out->stream.get_latency = out_get_latency;
+ out->stream.set_volume = out_set_volume;
+ out->stream.write = out_write;
+ out->stream.get_render_position = out_get_render_position;
+ out->stream.get_presentation_position = out_get_presentation_position;
+ out->stream.get_next_write_timestamp = out_get_next_write_timestamp;
+
+ pthread_mutex_init(&out->lock, (const pthread_mutexattr_t *) NULL);
+ pthread_mutex_init(&out->pre_lock, (const pthread_mutexattr_t *) NULL);
+
+ out->dev = adev;
+ pthread_mutex_lock(&adev->lock);
+ out->profile = &adev->out_profile;
+
+ // build this to hand to the alsa_device_proxy
+ struct pcm_config proxy_config;
+ memset(&proxy_config, 0, sizeof(proxy_config));
+
+ /* Pull out the card/device pair */
+ parse_card_device_params(address, &(out->profile->card), &(out->profile->device));
+
+ profile_read_device_info(out->profile);
+
+ pthread_mutex_unlock(&adev->lock);
+
+ int ret = 0;
+
+ /* Rate */
+ if (config->sample_rate == 0) {
+ proxy_config.rate = config->sample_rate = profile_get_default_sample_rate(out->profile);
+ } else if (profile_is_sample_rate_valid(out->profile, config->sample_rate)) {
+ proxy_config.rate = config->sample_rate;
+ } else {
+ proxy_config.rate = config->sample_rate = profile_get_default_sample_rate(out->profile);
+ ret = -EINVAL;
+ }
+
+ /* Format */
+ if (config->format == AUDIO_FORMAT_DEFAULT) {
+ proxy_config.format = profile_get_default_format(out->profile);
+ config->format = audio_format_from_pcm_format(proxy_config.format);
+ } else {
+ enum pcm_format fmt = pcm_format_from_audio_format(config->format);
+ if (profile_is_format_valid(out->profile, fmt)) {
+ proxy_config.format = fmt;
+ } else {
+ proxy_config.format = profile_get_default_format(out->profile);
+ config->format = audio_format_from_pcm_format(proxy_config.format);
+ ret = -EINVAL;
+ }
+ }
+
+ /* Channels */
+ unsigned proposed_channel_count = 0;
+ if (k_force_channels) {
+ proposed_channel_count = k_force_channels;
+ } else if (config->channel_mask == AUDIO_CHANNEL_NONE) {
+ proposed_channel_count = profile_get_default_channel_count(out->profile);
+ }
+ if (proposed_channel_count != 0) {
+ if (proposed_channel_count <= FCC_2) {
+ // use channel position mask for mono and stereo
+ config->channel_mask = audio_channel_out_mask_from_count(proposed_channel_count);
+ } else {
+ // use channel index mask for multichannel
+ config->channel_mask =
+ audio_channel_mask_for_index_assignment_from_count(proposed_channel_count);
+ }
+ out->hal_channel_count = proposed_channel_count;
+ } else {
+ out->hal_channel_count = audio_channel_count_from_out_mask(config->channel_mask);
+ }
+ /* we can expose any channel mask, and emulate internally based on channel count. */
+ out->hal_channel_mask = config->channel_mask;
+
+ /* no validity checks are needed as proxy_prepare() forces channel_count to be valid.
+ * and we emulate any channel count discrepancies in out_write(). */
+ proxy_config.channels = proposed_channel_count;
+
+ proxy_prepare(&out->proxy, out->profile, &proxy_config);
+
+ /* TODO The retry mechanism isn't implemented in AudioPolicyManager/AudioFlinger. */
+ ret = 0;
+
+ out->conversion_buffer = NULL;
+ out->conversion_buffer_size = 0;
+
+ out->standby = true;
+
+ *stream_out = &out->stream;
+
+ return ret;
+
+err_open:
+ free(out);
+ *stream_out = NULL;
+ return -ENOSYS;
+}
+
+static void adev_close_output_stream(struct audio_hw_device *dev,
+ struct audio_stream_out *stream)
+{
+ struct stream_out *out = (struct stream_out *)stream;
+ ALOGV("adev_close_output_stream(c:%d d:%d)", out->profile->card, out->profile->device);
+
+ /* Close the pcm device */
+ out_standby(&stream->common);
+
+ free(out->conversion_buffer);
+
+ out->conversion_buffer = NULL;
+ out->conversion_buffer_size = 0;
+
+ free(stream);
+}
+
+static size_t adev_get_input_buffer_size(const struct audio_hw_device *dev,
+ const struct audio_config *config)
+{
+ /* TODO This needs to be calculated based on format/channels/rate */
+ return 320;
+}
+
+/*
+ * IN functions
+ */
+static uint32_t in_get_sample_rate(const struct audio_stream *stream)
+{
+ uint32_t rate = proxy_get_sample_rate(&((const struct stream_in *)stream)->proxy);
+ ALOGV("in_get_sample_rate() = %d", rate);
+ return rate;
+}
+
+static int in_set_sample_rate(struct audio_stream *stream, uint32_t rate)
+{
+ ALOGV("in_set_sample_rate(%d) - NOPE", rate);
+ return -ENOSYS;
+}
+
+static size_t in_get_buffer_size(const struct audio_stream *stream)
+{
+ const struct stream_in * in = ((const struct stream_in*)stream);
+ return proxy_get_period_size(&in->proxy) * audio_stream_in_frame_size(&(in->stream));
+}
+
+static uint32_t in_get_channels(const struct audio_stream *stream)
+{
+ const struct stream_in *in = (const struct stream_in*)stream;
+ return in->hal_channel_mask;
+}
+
+static audio_format_t in_get_format(const struct audio_stream *stream)
+{
+ alsa_device_proxy *proxy = &((struct stream_in*)stream)->proxy;
+ audio_format_t format = audio_format_from_pcm_format(proxy_get_format(proxy));
+ return format;
+}
+
+static int in_set_format(struct audio_stream *stream, audio_format_t format)
+{
+ ALOGV("in_set_format(%d) - NOPE", format);
+
+ return -ENOSYS;
+}
+
+static int in_standby(struct audio_stream *stream)
+{
+ struct stream_in *in = (struct stream_in *)stream;
+
+ lock_input_stream(in);
+ if (!in->standby) {
+ pthread_mutex_lock(&in->dev->lock);
+ proxy_close(&in->proxy);
+ pthread_mutex_unlock(&in->dev->lock);
+ in->standby = true;
+ }
+
+ pthread_mutex_unlock(&in->lock);
+
+ return 0;
+}
+
+static int in_dump(const struct audio_stream *stream, int fd)
+{
+ return 0;
+}
+
+static int in_set_parameters(struct audio_stream *stream, const char *kvpairs)
+{
+ ALOGV("in_set_parameters() keys:%s", kvpairs);
+
+ struct stream_in *in = (struct stream_in *)stream;
+
+ char value[32];
+ int param_val;
+ int routing = 0;
+ int ret_value = 0;
+ int card = -1;
+ int device = -1;
+
+ if (!parse_card_device_params(kvpairs, &card, &device)) {
+ // nothing to do
+ return ret_value;
+ }
+
+ lock_input_stream(in);
+ pthread_mutex_lock(&in->dev->lock);
+
+ if (card >= 0 && device >= 0 && !profile_is_cached_for(in->profile, card, device)) {
+ /* cannot read pcm device info if playback is active */
+ if (!in->standby)
+ ret_value = -ENOSYS;
+ else {
+ int saved_card = in->profile->card;
+ int saved_device = in->profile->device;
+ in->profile->card = card;
+ in->profile->device = device;
+ ret_value = profile_read_device_info(in->profile) ? 0 : -EINVAL;
+ if (ret_value != 0) {
+ in->profile->card = saved_card;
+ in->profile->device = saved_device;
+ }
+ }
+ }
+
+ pthread_mutex_unlock(&in->dev->lock);
+ pthread_mutex_unlock(&in->lock);
+
+ return ret_value;
+}
+
+static char * in_get_parameters(const struct audio_stream *stream, const char *keys)
+{
+ struct stream_in *in = (struct stream_in *)stream;
+
+ lock_input_stream(in);
+ pthread_mutex_lock(&in->dev->lock);
+
+ char * params_str = device_get_parameters(in->profile, keys);
+
+ pthread_mutex_unlock(&in->dev->lock);
+ pthread_mutex_unlock(&in->lock);
+
+ return params_str;
+}
+
+static int in_add_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ return 0;
+}
+
+static int in_remove_audio_effect(const struct audio_stream *stream, effect_handle_t effect)
+{
+ return 0;
+}
+
+static int in_set_gain(struct audio_stream_in *stream, float gain)
+{
+ return 0;
+}
+
+/* must be called with hw device and output stream mutexes locked */
+static int start_input_stream(struct stream_in *in)
+{
+ ALOGV("ustart_input_stream(card:%d device:%d)", in->profile->card, in->profile->device);
+
+ return proxy_open(&in->proxy);
+}
+
+/* TODO mutex stuff here (see out_write) */
+static ssize_t in_read(struct audio_stream_in *stream, void* buffer, size_t bytes)
+{
+ size_t num_read_buff_bytes = 0;
+ void * read_buff = buffer;
+ void * out_buff = buffer;
+ int ret = 0;
+
+ struct stream_in * in = (struct stream_in *)stream;
+
+ lock_input_stream(in);
+ if (in->standby) {
+ pthread_mutex_lock(&in->dev->lock);
+ ret = start_input_stream(in);
+ pthread_mutex_unlock(&in->dev->lock);
+ if (ret != 0) {
+ goto err;
+ }
+ in->standby = false;
+ }
+
+ alsa_device_profile * profile = in->profile;
+
+ /*
+ * OK, we need to figure out how much data to read to be able to output the requested
+ * number of bytes in the HAL format (16-bit, stereo).
+ */
+ num_read_buff_bytes = bytes;
+ int num_device_channels = proxy_get_channel_count(&in->proxy); /* what we told Alsa */
+ int num_req_channels = in->hal_channel_count; /* what we told AudioFlinger */
+
+ if (num_device_channels != num_req_channels) {
+ num_read_buff_bytes = (num_device_channels * num_read_buff_bytes) / num_req_channels;
+ }
+
+ /* Setup/Realloc the conversion buffer (if necessary). */
+ if (num_read_buff_bytes != bytes) {
+ if (num_read_buff_bytes > in->conversion_buffer_size) {
+ /*TODO Remove this when AudioPolicyManger/AudioFlinger support arbitrary formats
+ (and do these conversions themselves) */
+ in->conversion_buffer_size = num_read_buff_bytes;
+ in->conversion_buffer = realloc(in->conversion_buffer, in->conversion_buffer_size);
+ }
+ read_buff = in->conversion_buffer;
+ }
+
+ ret = proxy_read(&in->proxy, read_buff, num_read_buff_bytes);
+ if (ret == 0) {
+ if (num_device_channels != num_req_channels) {
+ // ALOGV("chans dev:%d req:%d", num_device_channels, num_req_channels);
+
+ out_buff = buffer;
+ /* Num Channels conversion */
+ if (num_device_channels != num_req_channels) {
+ audio_format_t audio_format = in_get_format(&(in->stream.common));
+ unsigned sample_size_in_bytes = audio_bytes_per_sample(audio_format);
+
+ num_read_buff_bytes =
+ adjust_channels(read_buff, num_device_channels,
+ out_buff, num_req_channels,
+ sample_size_in_bytes, num_read_buff_bytes);
+ }
+ }
+
+ /* no need to acquire in->dev->lock to read mic_muted here as we don't change its state */
+ if (num_read_buff_bytes > 0 && in->dev->mic_muted)
+ memset(buffer, 0, num_read_buff_bytes);
+ } else {
+ num_read_buff_bytes = 0; // reset the value after USB headset is unplugged
+ }
+
+err:
+ pthread_mutex_unlock(&in->lock);
+
+ return num_read_buff_bytes;
+}
+
+static uint32_t in_get_input_frames_lost(struct audio_stream_in *stream)
+{
+ return 0;
+}
+
+static int adev_open_input_stream(struct audio_hw_device *dev,
+ audio_io_handle_t handle,
+ audio_devices_t devices,
+ struct audio_config *config,
+ struct audio_stream_in **stream_in,
+ audio_input_flags_t flags __unused,
+ const char *address /*__unused*/,
+ audio_source_t source __unused)
+{
+ ALOGV("in adev_open_input_stream() rate:%" PRIu32 ", chanMask:0x%" PRIX32 ", fmt:%" PRIu8,
+ config->sample_rate, config->channel_mask, config->format);
+
+ struct stream_in *in = (struct stream_in *)calloc(1, sizeof(struct stream_in));
+ int ret = 0;
+
+ if (in == NULL)
+ return -ENOMEM;
+
+ /* setup function pointers */
+ in->stream.common.get_sample_rate = in_get_sample_rate;
+ in->stream.common.set_sample_rate = in_set_sample_rate;
+ in->stream.common.get_buffer_size = in_get_buffer_size;
+ in->stream.common.get_channels = in_get_channels;
+ in->stream.common.get_format = in_get_format;
+ in->stream.common.set_format = in_set_format;
+ in->stream.common.standby = in_standby;
+ in->stream.common.dump = in_dump;
+ in->stream.common.set_parameters = in_set_parameters;
+ in->stream.common.get_parameters = in_get_parameters;
+ in->stream.common.add_audio_effect = in_add_audio_effect;
+ in->stream.common.remove_audio_effect = in_remove_audio_effect;
+
+ in->stream.set_gain = in_set_gain;
+ in->stream.read = in_read;
+ in->stream.get_input_frames_lost = in_get_input_frames_lost;
+
+ pthread_mutex_init(&in->lock, (const pthread_mutexattr_t *) NULL);
+ pthread_mutex_init(&in->pre_lock, (const pthread_mutexattr_t *) NULL);
+
+ in->dev = (struct audio_device *)dev;
+ pthread_mutex_lock(&in->dev->lock);
+
+ in->profile = &in->dev->in_profile;
+
+ struct pcm_config proxy_config;
+ memset(&proxy_config, 0, sizeof(proxy_config));
+
+ /* Pull out the card/device pair */
+ parse_card_device_params(address, &(in->profile->card), &(in->profile->device));
+
+ profile_read_device_info(in->profile);
+ pthread_mutex_unlock(&in->dev->lock);
+
+ /* Rate */
+ if (config->sample_rate == 0) {
+ proxy_config.rate = config->sample_rate = profile_get_default_sample_rate(in->profile);
+ } else if (profile_is_sample_rate_valid(in->profile, config->sample_rate)) {
+ proxy_config.rate = config->sample_rate;
+ } else {
+ proxy_config.rate = config->sample_rate = profile_get_default_sample_rate(in->profile);
+ ret = -EINVAL;
+ }
+
+ /* Format */
+ if (config->format == AUDIO_FORMAT_DEFAULT) {
+ proxy_config.format = profile_get_default_format(in->profile);
+ config->format = audio_format_from_pcm_format(proxy_config.format);
+ } else {
+ enum pcm_format fmt = pcm_format_from_audio_format(config->format);
+ if (profile_is_format_valid(in->profile, fmt)) {
+ proxy_config.format = fmt;
+ } else {
+ proxy_config.format = profile_get_default_format(in->profile);
+ config->format = audio_format_from_pcm_format(proxy_config.format);
+ ret = -EINVAL;
+ }
+ }
+
+ /* Channels */
+ unsigned proposed_channel_count = 0;
+ if (k_force_channels) {
+ proposed_channel_count = k_force_channels;
+ } else if (config->channel_mask == AUDIO_CHANNEL_NONE) {
+ proposed_channel_count = profile_get_default_channel_count(in->profile);
+ }
+ if (proposed_channel_count != 0) {
+ config->channel_mask = audio_channel_in_mask_from_count(proposed_channel_count);
+ if (config->channel_mask == AUDIO_CHANNEL_INVALID)
+ config->channel_mask =
+ audio_channel_mask_for_index_assignment_from_count(proposed_channel_count);
+ in->hal_channel_count = proposed_channel_count;
+ } else {
+ in->hal_channel_count = audio_channel_count_from_in_mask(config->channel_mask);
+ }
+ /* we can expose any channel mask, and emulate internally based on channel count. */
+ in->hal_channel_mask = config->channel_mask;
+
+ proxy_config.channels = profile_get_default_channel_count(in->profile);
+ proxy_prepare(&in->proxy, in->profile, &proxy_config);
+
+ in->standby = true;
+
+ in->conversion_buffer = NULL;
+ in->conversion_buffer_size = 0;
+
+ *stream_in = &in->stream;
+
+ return ret;
+}
+
+static void adev_close_input_stream(struct audio_hw_device *dev, struct audio_stream_in *stream)
+{
+ struct stream_in *in = (struct stream_in *)stream;
+
+ /* Close the pcm device */
+ in_standby(&stream->common);
+
+ free(in->conversion_buffer);
+
+ free(stream);
+}
+
+/*
+ * ADEV Functions
+ */
+static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs)
+{
+ return 0;
+}
+
+static char * adev_get_parameters(const struct audio_hw_device *dev, const char *keys)
+{
+ return strdup("");
+}
+
+static int adev_init_check(const struct audio_hw_device *dev)
+{
+ return 0;
+}
+
+static int adev_set_voice_volume(struct audio_hw_device *dev, float volume)
+{
+ return -ENOSYS;
+}
+
+static int adev_set_master_volume(struct audio_hw_device *dev, float volume)
+{
+ return -ENOSYS;
+}
+
+static int adev_set_mode(struct audio_hw_device *dev, audio_mode_t mode)
+{
+ return 0;
+}
+
+static int adev_set_mic_mute(struct audio_hw_device *dev, bool state)
+{
+ struct audio_device * adev = (struct audio_device *)dev;
+ pthread_mutex_lock(&adev->lock);
+ adev->mic_muted = state;
+ pthread_mutex_unlock(&adev->lock);
+ return -ENOSYS;
+}
+
+static int adev_get_mic_mute(const struct audio_hw_device *dev, bool *state)
+{
+ return -ENOSYS;
+}
+
+static int adev_dump(const audio_hw_device_t *device, int fd)
+{
+ return 0;
+}
+
+static int adev_close(hw_device_t *device)
+{
+ struct audio_device *adev = (struct audio_device *)device;
+ free(device);
+
+ return 0;
+}
+
+static int adev_open(const hw_module_t* module, const char* name, hw_device_t** device)
+{
+ if (strcmp(name, AUDIO_HARDWARE_INTERFACE) != 0)
+ return -EINVAL;
+
+ struct audio_device *adev = calloc(1, sizeof(struct audio_device));
+ if (!adev)
+ return -ENOMEM;
+
+ profile_init(&adev->out_profile, PCM_OUT);
+ profile_init(&adev->in_profile, PCM_IN);
+
+ adev->hw_device.common.tag = HARDWARE_DEVICE_TAG;
+ adev->hw_device.common.version = AUDIO_DEVICE_API_VERSION_2_0;
+ adev->hw_device.common.module = (struct hw_module_t *)module;
+ adev->hw_device.common.close = adev_close;
+
+ adev->hw_device.init_check = adev_init_check;
+ adev->hw_device.set_voice_volume = adev_set_voice_volume;
+ adev->hw_device.set_master_volume = adev_set_master_volume;
+ adev->hw_device.set_mode = adev_set_mode;
+ adev->hw_device.set_mic_mute = adev_set_mic_mute;
+ adev->hw_device.get_mic_mute = adev_get_mic_mute;
+ adev->hw_device.set_parameters = adev_set_parameters;
+ adev->hw_device.get_parameters = adev_get_parameters;
+ adev->hw_device.get_input_buffer_size = adev_get_input_buffer_size;
+ adev->hw_device.open_output_stream = adev_open_output_stream;
+ adev->hw_device.close_output_stream = adev_close_output_stream;
+ adev->hw_device.open_input_stream = adev_open_input_stream;
+ adev->hw_device.close_input_stream = adev_close_input_stream;
+ adev->hw_device.dump = adev_dump;
+
+ *device = &adev->hw_device.common;
+
+ return 0;
+}
+
+static struct hw_module_methods_t hal_module_methods = {
+ .open = adev_open,
+};
+
+struct audio_module HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = AUDIO_MODULE_API_VERSION_0_1,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = AUDIO_HARDWARE_MODULE_ID,
+ .name = "USB audio HW HAL",
+ .author = "The Android Open Source Project",
+ .methods = &hal_module_methods,
+ },
+};
diff --git a/libhardware/modules/usbcamera/Android.mk b/libhardware/modules/usbcamera/Android.mk
new file mode 100644
index 0000000..162b158
--- /dev/null
+++ b/libhardware/modules/usbcamera/Android.mk
@@ -0,0 +1,45 @@
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := camera.usb.default
+LOCAL_MODULE_RELATIVE_PATH := hw
+
+LOCAL_C_INCLUDES += \
+ system/core/include \
+ system/media/camera/include \
+
+LOCAL_SRC_FILES := \
+ CameraHAL.cpp \
+ Camera.cpp \
+ UsbCamera.cpp \
+ Metadata.cpp \
+ Stream.cpp \
+ HotplugThread.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ libcamera_metadata \
+ libcutils \
+ liblog \
+ libsync \
+ libutils \
+
+LOCAL_CFLAGS += -Wall -Wextra -fvisibility=hidden
+
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libhardware/modules/usbcamera/Camera.cpp b/libhardware/modules/usbcamera/Camera.cpp
new file mode 100644
index 0000000..cf62f7f
--- /dev/null
+++ b/libhardware/modules/usbcamera/Camera.cpp
@@ -0,0 +1,537 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Camera"
+#include <cutils/log.h>
+
+#include <cstdlib>
+#include <stdio.h>
+#include <hardware/camera3.h>
+#include <system/camera_metadata.h>
+#include <system/graphics.h>
+#include <utils/Mutex.h>
+#include "CameraHAL.h"
+#include "Metadata.h"
+#include "Stream.h"
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "Camera.h"
+
+namespace usb_camera_hal {
+
+extern "C" {
+// Shim passed to the framework to close an opened device.
+static int close_device(hw_device_t* dev) {
+ camera3_device_t* cam_dev = reinterpret_cast<camera3_device_t*>(dev);
+ Camera* cam = static_cast<Camera*>(cam_dev->priv);
+ return cam->close();
+}
+
+// Get handle to camera from device priv data
+static Camera *camdev_to_camera(const camera3_device_t *dev) {
+ return reinterpret_cast<Camera*>(dev->priv);
+}
+
+static int initialize(const camera3_device_t *dev,
+ const camera3_callback_ops_t *callback_ops) {
+ return camdev_to_camera(dev)->initialize(callback_ops);
+}
+
+static int configure_streams(const camera3_device_t *dev,
+ camera3_stream_configuration_t *stream_list) {
+ return camdev_to_camera(dev)->configureStreams(stream_list);
+}
+
+static const camera_metadata_t *construct_default_request_settings(
+ const camera3_device_t *dev, int type) {
+ return camdev_to_camera(dev)->constructDefaultRequestSettings(type);
+}
+
+static int process_capture_request(const camera3_device_t *dev,
+ camera3_capture_request_t *request) {
+ return camdev_to_camera(dev)->processCaptureRequest(request);
+}
+
+static void dump(const camera3_device_t *dev, int fd) {
+ camdev_to_camera(dev)->dump(fd);
+}
+
+static int flush(const camera3_device_t *dev) {
+ return camdev_to_camera(dev)->flush();
+}
+
+} // extern "C"
+
+const camera3_device_ops_t Camera::sOps = {
+ .initialize = usb_camera_hal::initialize,
+ .configure_streams = usb_camera_hal::configure_streams,
+ .register_stream_buffers = NULL,
+ .construct_default_request_settings
+ = usb_camera_hal::construct_default_request_settings,
+ .process_capture_request = usb_camera_hal::process_capture_request,
+ .get_metadata_vendor_tag_ops = NULL,
+ .dump = usb_camera_hal::dump,
+ .flush = usb_camera_hal::flush,
+ .reserved = {0},
+};
+
+Camera::Camera(int id)
+ : mId(id),
+ mStaticInfo(NULL),
+ mBusy(false),
+ mCallbackOps(NULL),
+ mSettings(NULL),
+ mIsInitialized(false) {
+ memset(&mTemplates, 0, sizeof(mTemplates));
+ memset(&mDevice, 0, sizeof(mDevice));
+ mDevice.common.tag = HARDWARE_DEVICE_TAG;
+ // TODO: Upgrade to HAL3.3
+ mDevice.common.version = CAMERA_DEVICE_API_VERSION_3_2;
+ mDevice.common.close = close_device;
+ mDevice.ops = const_cast<camera3_device_ops_t*>(&sOps);
+ mDevice.priv = this;
+}
+
+Camera::~Camera() {
+ if (mStaticInfo != NULL) {
+ free_camera_metadata(mStaticInfo);
+ }
+
+ for (int i = 0; i < CAMERA3_TEMPLATE_COUNT; i++) {
+ free_camera_metadata(mTemplates[i]);
+ }
+
+ if (mSettings != NULL) {
+ free_camera_metadata(mSettings);
+ }
+}
+
+int Camera::open(const hw_module_t *module, hw_device_t **device) {
+ ALOGI("%s:%d: Opening camera device", __func__, mId);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (mBusy) {
+ ALOGE("%s:%d: Error! Camera device already opened", __func__, mId);
+ return -EBUSY;
+ }
+
+ mBusy = true;
+ mDevice.common.module = const_cast<hw_module_t*>(module);
+ *device = &mDevice.common;
+ return openDevice();
+}
+
+int Camera::getInfo(struct camera_info *info) {
+ android::Mutex::Autolock al(mStaticInfoLock);
+
+ // TODO: update to CAMERA_FACING_EXTERNAL once the HAL API changes are merged.
+ info->facing = CAMERA_FACING_FRONT;
+ info->orientation = 0;
+ info->device_version = mDevice.common.version;
+ if (mStaticInfo == NULL) {
+ initStaticInfo();
+ }
+ info->static_camera_characteristics = mStaticInfo;
+ return 0;
+}
+
+void Camera::updateInfo() {
+ android::Mutex::Autolock al(mStaticInfoLock);
+ initStaticInfo();
+}
+
+int Camera::close() {
+ ALOGI("%s:%d: Closing camera device", __func__, mId);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (!mBusy) {
+ ALOGE("%s:%d: Error! Camera device not open", __func__, mId);
+ return -EINVAL;
+ }
+
+ mBusy = false;
+ mIsInitialized = false;
+ return closeDevice();
+}
+
+int Camera::initialize(const camera3_callback_ops_t *callback_ops) {
+ int res;
+
+ ALOGV("%s:%d: callback_ops=%p", __func__, mId, callback_ops);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ mCallbackOps = callback_ops;
+ // per-device specific initialization
+ res = initDevice();
+ if (res != 0) {
+ ALOGE("%s:%d: Failed to initialize device!", __func__, mId);
+ return res;
+ }
+
+ mIsInitialized = true;
+ return 0;
+}
+
+int Camera::configureStreams(camera3_stream_configuration_t *stream_config) {
+ camera3_stream_t *astream;
+ android::Vector<Stream *> newStreams;
+
+ ALOGV("%s:%d: stream_config=%p", __func__, mId, stream_config);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+ if (!mIsInitialized) {
+ ALOGE("Device is not initialized yet");
+ return -EINVAL;
+ }
+
+ if (stream_config == NULL) {
+ ALOGE("%s:%d: NULL stream configuration array", __func__, mId);
+ return -EINVAL;
+ }
+ if (stream_config->num_streams == 0) {
+ ALOGE("%s:%d: Empty stream configuration array", __func__, mId);
+ return -EINVAL;
+ }
+
+ ALOGV("%s:%d: Number of Streams: %d", __func__, mId,
+ stream_config->num_streams);
+ // Mark all current streams unused for now
+ for (size_t i = 0; i < mStreams.size(); i++) {
+ mStreams[i]->mReuse = false;
+ }
+ // Fill new stream array with reused streams and new streams
+ for (unsigned int i = 0; i < stream_config->num_streams; i++) {
+ astream = stream_config->streams[i];
+ if (astream->max_buffers > 0) {
+ ALOGV("%s:%d: Reusing stream %d", __func__, mId, i);
+ newStreams.add(reuseStreamLocked(astream));
+ } else {
+ ALOGV("%s:%d: Creating new stream %d", __func__, mId, i);
+ newStreams.add(new Stream(mId, astream));
+ }
+
+ if (newStreams[i] == NULL) {
+ ALOGE("%s:%d: Error processing stream %d", __func__, mId, i);
+ goto err_out;
+ }
+ astream->priv = reinterpret_cast<void *>(newStreams[i]);
+ }
+
+ // Verify the set of streams in aggregate
+ if (!isValidStreamSetLocked(newStreams)) {
+ ALOGE("%s:%d: Invalid stream set", __func__, mId);
+ goto err_out;
+ }
+
+ // Set up all streams (calculate usage/max_buffers for each)
+ setupStreamsLocked(newStreams);
+
+ // Destroy all old streams and replace stream array with new one
+ destroyStreamsLocked(mStreams);
+ mStreams = newStreams;
+
+ // Clear out last seen settings metadata
+ updateSettingsLocked(NULL);
+ return 0;
+
+err_out:
+ // Clean up temporary streams, preserve existing mStreams
+ destroyStreamsLocked(newStreams);
+ return -EINVAL;
+}
+
+void Camera::destroyStreamsLocked(android::Vector<Stream *> &streams) {
+ for (size_t i = 0; i < streams.size(); i++) {
+ delete streams[i];
+ }
+ streams.clear();
+}
+
+Stream *Camera::reuseStreamLocked(camera3_stream_t *astream) {
+ Stream *priv = reinterpret_cast<Stream*>(astream->priv);
+ // Verify the re-used stream's parameters match
+ if (!priv->isValidReuseStream(mId, astream)) {
+ ALOGE("%s:%d: Mismatched parameter in reused stream", __func__, mId);
+ return NULL;
+ }
+ // Mark stream to be reused
+ priv->mReuse = true;
+ return priv;
+}
+
+bool Camera::isValidStreamSetLocked(const android::Vector<Stream *> &streams) {
+ int inputs = 0;
+ int outputs = 0;
+
+ if (streams.isEmpty()) {
+ ALOGE("%s:%d: Zero count stream configuration streams", __func__, mId);
+ return false;
+ }
+ // Validate there is at most one input stream and at least one output stream
+ for (size_t i = 0; i < streams.size(); i++) {
+ // A stream may be both input and output (bidirectional)
+ if (streams[i]->isInputType())
+ inputs++;
+ if (streams[i]->isOutputType())
+ outputs++;
+ }
+ ALOGV("%s:%d: Configuring %d output streams and %d input streams",
+ __func__, mId, outputs, inputs);
+ if (outputs < 1) {
+ ALOGE("%s:%d: Stream config must have >= 1 output", __func__, mId);
+ return false;
+ }
+ if (inputs > 1) {
+ ALOGE("%s:%d: Stream config must have <= 1 input", __func__, mId);
+ return false;
+ }
+ // TODO: check for correct number of Bayer/YUV/JPEG/Encoder streams
+ return true;
+}
+
+void Camera::setupStreamsLocked(android::Vector<Stream *> &streams) {
+ /*
+ * This is where the HAL has to decide internally how to handle all of the
+ * streams, and then produce usage and max_buffer values for each stream.
+ * Note, the stream vector has been checked before this point for ALL invalid
+ * conditions, so it must find a successful configuration for this stream
+ * array. The HAL may not return an error from this point.
+ *
+ * TODO: we just set all streams to be the same dummy values;
+ * real implementations will want to avoid USAGE_SW_{READ|WRITE}_OFTEN.
+ */
+ for (size_t i = 0; i < streams.size(); i++) {
+ uint32_t usage = 0;
+
+ if (streams[i]->isOutputType())
+ usage |= GRALLOC_USAGE_SW_WRITE_OFTEN |
+ GRALLOC_USAGE_HW_CAMERA_WRITE;
+ if (streams[i]->isInputType())
+ usage |= GRALLOC_USAGE_SW_READ_OFTEN |
+ GRALLOC_USAGE_HW_CAMERA_READ;
+
+ streams[i]->setUsage(usage);
+ streams[i]->setMaxBuffers(1);
+ }
+}
+
+bool Camera::isValidTemplateType(int type) {
+ return type >= 1 && type < CAMERA3_TEMPLATE_COUNT;
+}
+
+const camera_metadata_t* Camera::constructDefaultRequestSettings(int type) {
+ ALOGV("%s:%d: type=%d", __func__, mId, type);
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (!isValidTemplateType(type)) {
+ ALOGE("%s:%d: Invalid template request type: %d", __func__, mId, type);
+ return NULL;
+ }
+
+ // DO NOT try to initialize the device here, it will be guaranteed deadlock.
+ if (!mIsInitialized) {
+ ALOGE("Device is not initialized yet");
+ return NULL;
+ }
+
+ return mTemplates[type];
+}
+
+// This implementation is a copy-paste, probably we should override (or move) this to
+// device specific class.
+int Camera::processCaptureRequest(camera3_capture_request_t *request) {
+ camera3_capture_result result;
+ ALOGV("%s:%d: request=%p", __func__, mId, request);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (request == NULL) {
+ ALOGE("%s:%d: NULL request recieved", __func__, mId);
+ return -EINVAL;
+ }
+
+ ALOGV("%s:%d: Request Frame:%d Settings:%p", __func__, mId,
+ request->frame_number, request->settings);
+
+ // NULL indicates use last settings
+ if (request->settings == NULL) {
+ if (mSettings == NULL) {
+ ALOGE("%s:%d: NULL settings without previous set Frame:%d Req:%p",
+ __func__, mId, request->frame_number, request);
+ return -EINVAL;
+ }
+ } else {
+ updateSettingsLocked(request->settings);
+ }
+
+ if (request->input_buffer != NULL) {
+ ALOGV("%s:%d: Reprocessing input buffer is not supported yet", __func__, mId);
+ return -EINVAL;
+ } else {
+ ALOGV("%s:%d: Capturing new frame.", __func__, mId);
+
+ if (!isValidCaptureSettings(request->settings)) {
+ ALOGE("%s:%d: Invalid settings for capture request: %p",
+ __func__, mId, request->settings);
+ return -EINVAL;
+ }
+ }
+
+ if (request->num_output_buffers <= 0) {
+ ALOGE("%s:%d: Invalid number of output buffers: %d", __func__, mId,
+ request->num_output_buffers);
+ return -EINVAL;
+ }
+ result.num_output_buffers = request->num_output_buffers;
+ result.output_buffers = new camera3_stream_buffer_t[result.num_output_buffers];
+ for (unsigned int i = 0; i < request->num_output_buffers; i++) {
+ int res = processCaptureBuffer(&request->output_buffers[i],
+ const_cast<camera3_stream_buffer_t*>(&result.output_buffers[i]));
+ if (res) {
+ delete [] result.output_buffers;
+ // TODO: this should probably be a total device failure; transient for now
+ return -EINVAL;
+ }
+ }
+
+ result.frame_number = request->frame_number;
+ // TODO: return actual captured/reprocessed settings
+ result.result = request->settings;
+ // TODO: asynchronously return results
+ notifyShutter(request->frame_number, 0);
+ mCallbackOps->process_capture_result(mCallbackOps, &result);
+
+ // Free up capture result related resources, HAL owns the capture result, and it
+ // is only valid during the process_capture_result call.
+ delete[] result.output_buffers;
+
+ return 0;
+}
+
+int Camera::flush() {
+ int res;
+
+ ALOGV("%s:%d: flush device", __func__, mId);
+ // per-device specific flush
+ res = flushDevice();
+ if (res != 0) {
+ ALOGE("%s:%d: Failed to flush device!", __func__, mId);
+ return res;
+ }
+ return 0;
+}
+
+void Camera::updateSettingsLocked(const camera_metadata_t *new_settings) {
+ if (mSettings != NULL) {
+ free_camera_metadata(mSettings);
+ mSettings = NULL;
+ }
+
+ if (new_settings != NULL)
+ mSettings = clone_camera_metadata(new_settings);
+}
+
+void Camera::notifyShutter(uint32_t frame_number, uint64_t timestamp) {
+ int res;
+ struct timespec ts;
+
+ // If timestamp is 0, get timestamp from right now instead
+ if (timestamp == 0) {
+ ALOGW("%s:%d: No timestamp provided, using CLOCK_BOOTTIME",
+ __func__, mId);
+ res = clock_gettime(CLOCK_BOOTTIME, &ts);
+ if (res == 0) {
+ timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec;
+ } else {
+ ALOGE("%s:%d: No timestamp and failed to get CLOCK_BOOTTIME %s(%d)",
+ __func__, mId, strerror(errno), errno);
+ }
+ }
+ camera3_notify_msg_t m;
+ memset(&m, 0, sizeof(m));
+ m.type = CAMERA3_MSG_SHUTTER;
+ m.message.shutter.frame_number = frame_number;
+ m.message.shutter.timestamp = timestamp;
+ mCallbackOps->notify(mCallbackOps, &m);
+}
+
+void Camera::dump(int fd) {
+ ALOGV("%s:%d: Dumping to fd %d", __func__, mId, fd);
+ ATRACE_CALL();
+ android::Mutex::Autolock al(mDeviceLock);
+
+ dprintf(fd, "Camera ID: %d (Busy: %d)\n", mId, mBusy);
+
+ // TODO: dump all settings
+ dprintf(fd, "Most Recent Settings: (%p)\n", mSettings);
+
+ dprintf(fd, "Number of streams: %d\n", mStreams.size());
+ for (size_t i = 0; i < mStreams.size(); i++) {
+ dprintf(fd, "Stream %d/%d:\n", i, mStreams.size());
+ mStreams[i]->dump(fd);
+ }
+}
+
+const char* Camera::templateToString(int type) {
+ switch (type) {
+ case CAMERA3_TEMPLATE_PREVIEW:
+ return "CAMERA3_TEMPLATE_PREVIEW";
+ case CAMERA3_TEMPLATE_STILL_CAPTURE:
+ return "CAMERA3_TEMPLATE_STILL_CAPTURE";
+ case CAMERA3_TEMPLATE_VIDEO_RECORD:
+ return "CAMERA3_TEMPLATE_VIDEO_RECORD";
+ case CAMERA3_TEMPLATE_VIDEO_SNAPSHOT:
+ return "CAMERA3_TEMPLATE_VIDEO_SNAPSHOT";
+ case CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG:
+ return "CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG";
+ case CAMERA3_TEMPLATE_MANUAL:
+ return "CAMERA3_TEMPLATE_MANUAL";
+ }
+
+ return "Invalid template type!";
+}
+
+int Camera::setTemplate(int type, camera_metadata_t *settings) {
+ android::Mutex::Autolock al(mDeviceLock);
+
+ if (!isValidTemplateType(type)) {
+ ALOGE("%s:%d: Invalid template request type: %d", __func__, mId, type);
+ return -EINVAL;
+ }
+
+ if (mTemplates[type] != NULL) {
+ ALOGE("%s:%d: Setting already constructed template type %s(%d)",
+ __func__, mId, templateToString(type), type);
+ return -EINVAL;
+ }
+
+ // Make a durable copy of the underlying metadata
+ mTemplates[type] = clone_camera_metadata(settings);
+ if (mTemplates[type] == NULL) {
+ ALOGE("%s:%d: Failed to clone metadata %p for template type %s(%d)",
+ __func__, mId, settings, templateToString(type), type);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+} // namespace usb_camera_hal
diff --git a/libhardware/modules/usbcamera/Camera.h b/libhardware/modules/usbcamera/Camera.h
new file mode 100644
index 0000000..4051345
--- /dev/null
+++ b/libhardware/modules/usbcamera/Camera.h
@@ -0,0 +1,131 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAMERA_H_
+#define CAMERA_H_
+
+#include <hardware/hardware.h>
+#include <hardware/camera3.h>
+#include <utils/Mutex.h>
+#include <utils/Vector.h>
+#include "Metadata.h"
+#include <sync/sync.h>
+#include "Stream.h"
+
+#define CAMERA_SYNC_TIMEOUT_MS 5000
+
+namespace usb_camera_hal {
+// Camera represents a physical camera on a device.
+// This is constructed when the HAL module is loaded, one per physical camera.
+// It is opened by the framework, and must be closed before it can be opened
+// again.
+// This is an abstract class, containing all logic and data shared between all
+// camera devices.
+class Camera {
+ public:
+ // id is used to distinguish cameras. 0 <= id < NUM_CAMERAS.
+ // module is a handle to the HAL module, used when the device is opened.
+ explicit Camera(int id);
+ virtual ~Camera();
+
+ // Common Camera Device Operations (see <hardware/camera_common.h>)
+ int open(const hw_module_t *module, hw_device_t **device);
+ int getInfo(struct camera_info *info);
+ int close();
+
+ // Camera v3 Device Operations (see <hardware/camera3.h>)
+ int initialize(const camera3_callback_ops_t *callback_ops);
+ int configureStreams(camera3_stream_configuration_t *stream_list);
+ const camera_metadata_t *constructDefaultRequestSettings(int type);
+ int processCaptureRequest(camera3_capture_request_t *request);
+ int flush();
+ void dump(int fd);
+
+ // Update static camera characteristics. This method could be called by
+ // HAL hotplug thread when camera is plugged.
+ void updateInfo();
+
+ protected:
+ // Initialize static camera characteristics.
+ virtual int initStaticInfo() = 0;
+ // Verify settings are valid for a capture
+ virtual bool isValidCaptureSettings(const camera_metadata_t *) = 0;
+ // Separate open method for individual devices
+ virtual int openDevice() = 0;
+ // Separate initialization method for individual devices when opened
+ virtual int initDevice() = 0;
+ // Flush camera pipeline for each individual device
+ virtual int flushDevice() = 0;
+ // Separate close method for individual devices
+ virtual int closeDevice() = 0;
+ // Capture and file an output buffer for an input buffer.
+ virtual int processCaptureBuffer(const camera3_stream_buffer_t *in,
+ camera3_stream_buffer_t *out) = 0;
+ // Accessor method used by initDevice() to set the templates' metadata
+ int setTemplate(int type, camera_metadata_t *settings);
+ // Prettyprint template names
+ const char* templateToString(int type);
+ // Process an output buffer
+
+ // Identifier used by framework to distinguish cameras
+ const int mId;
+ // Metadata containing persistent camera characteristics
+ Metadata mMetadata;
+ // camera_metadata structure containing static characteristics
+ camera_metadata_t *mStaticInfo;
+
+ private:
+ // Camera device handle returned to framework for use
+ camera3_device_t mDevice;
+ // Reuse a stream already created by this device. Must be called with mDeviceLock held.
+ Stream *reuseStreamLocked(camera3_stream_t *astream);
+ // Destroy all streams in a stream array, and the array itself. Must be called with
+ // mDeviceLock held.
+ void destroyStreamsLocked(android::Vector<Stream *> &streams);
+ // Verify a set of streams is valid in aggregate. Must be called with mDeviceLock held.
+ bool isValidStreamSetLocked(const android::Vector<Stream *> &streams);
+ // Calculate usage and max_bufs of each stream. Must be called with mDeviceLock held.
+ void setupStreamsLocked(android::Vector<Stream *> &streams);
+ // Update new settings for re-use and clean up old settings. Must be called with
+ // mDeviceLock held.
+ void updateSettingsLocked(const camera_metadata_t *new_settings);
+ // Send a shutter notify message with start of exposure time
+ void notifyShutter(uint32_t frame_number, uint64_t timestamp);
+ // Is type a valid template type (and valid index into mTemplates)
+ bool isValidTemplateType(int type);
+
+ // Busy flag indicates camera is in use
+ bool mBusy;
+ // Camera device operations handle shared by all devices
+ const static camera3_device_ops_t sOps;
+ // Methods used to call back into the framework
+ const camera3_callback_ops_t *mCallbackOps;
+ // Lock protecting the Camera object for modifications
+ android::Mutex mDeviceLock;
+ // Lock protecting only static camera characteristics, which may
+ // be accessed without the camera device open
+ android::Mutex mStaticInfoLock;
+ // Array of handles to streams currently in use by the device
+ android::Vector<Stream *> mStreams;
+ // Static array of standard camera settings templates
+ camera_metadata_t *mTemplates[CAMERA3_TEMPLATE_COUNT];
+ // Most recent request settings seen, memoized to be reused
+ camera_metadata_t *mSettings;
+ bool mIsInitialized;
+};
+} // namespace usb_camera_hal
+
+#endif // CAMERA_H_
diff --git a/libhardware/modules/usbcamera/CameraHAL.cpp b/libhardware/modules/usbcamera/CameraHAL.cpp
new file mode 100644
index 0000000..652e937
--- /dev/null
+++ b/libhardware/modules/usbcamera/CameraHAL.cpp
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "UsbCameraHAL"
+#include <cutils/log.h>
+
+#include <cstdlib>
+#include <hardware/camera_common.h>
+#include <hardware/hardware.h>
+#include "UsbCamera.h"
+#include "CameraHAL.h"
+
+/*
+ * This file serves as the entry point to the HAL. It contains the module
+ * structure and functions used by the framework to load and interface to this
+ * HAL, as well as the handles to the individual camera devices.
+ */
+
+namespace usb_camera_hal {
+
+static CameraHAL gCameraHAL;
+
+CameraHAL::CameraHAL()
+ : mCallbacks(NULL) {
+ // Should not allocate the camera devices for now, as it is unclear if the device is plugged.
+
+ // Start hotplug thread
+ mHotplugThread = new HotplugThread(this);
+ mHotplugThread->run("usb-camera-hotplug");
+}
+
+CameraHAL::~CameraHAL() {
+ // Stop hotplug thread
+ {
+ android::Mutex::Autolock al(mModuleLock);
+ if (mHotplugThread != NULL) {
+ mHotplugThread->requestExit();
+ }
+
+ // Delete camera device from mCameras
+ }
+
+ // Joining done without holding mLock, otherwise deadlocks may ensue
+ // as the threads try to access parent states.
+ if (mHotplugThread != NULL) {
+ mHotplugThread->join();
+ }
+
+ delete mHotplugThread;
+}
+
+int CameraHAL::getNumberOfCameras() {
+ android::Mutex::Autolock al(mModuleLock);
+ ALOGV("%s: %d", __func__, mCameras.size());
+ return static_cast<int>(mCameras.size());
+}
+
+int CameraHAL::getCameraInfo(int id, struct camera_info* info) {
+ android::Mutex::Autolock al(mModuleLock);
+ ALOGV("%s: camera id %d: info=%p", __func__, id, info);
+ if (id < 0 || id >= static_cast<int>(mCameras.size())) {
+ ALOGE("%s: Invalid camera id %d", __func__, id);
+ return -ENODEV;
+ }
+
+ return mCameras[id]->getInfo(info);
+}
+
+int CameraHAL::setCallbacks(const camera_module_callbacks_t *callbacks) {
+ ALOGV("%s : callbacks=%p", __func__, callbacks);
+ mCallbacks = callbacks;
+ return 0;
+}
+
+int CameraHAL::open(const hw_module_t* mod, const char* name, hw_device_t** dev) {
+ int id;
+ char *nameEnd;
+
+ android::Mutex::Autolock al(mModuleLock);
+ ALOGV("%s: module=%p, name=%s, device=%p", __func__, mod, name, dev);
+ if (*name == '\0') {
+ ALOGE("%s: Invalid camera id name is NULL", __func__);
+ return -EINVAL;
+ }
+ id = strtol(name, &nameEnd, 10);
+ if (*nameEnd != '\0') {
+ ALOGE("%s: Invalid camera id name %s", __func__, name);
+ return -EINVAL;
+ } else if (id < 0 || id >= static_cast<int>(mCameras.size())) {
+ ALOGE("%s: Invalid camera id %d", __func__, id);
+ return -ENODEV;
+ }
+ return mCameras[id]->open(mod, dev);
+}
+
+extern "C" {
+
+static int get_number_of_cameras() {
+ return gCameraHAL.getNumberOfCameras();
+}
+
+static int get_camera_info(int id, struct camera_info* info) {
+ return gCameraHAL.getCameraInfo(id, info);
+}
+
+static int set_callbacks(const camera_module_callbacks_t *callbacks) {
+ return gCameraHAL.setCallbacks(callbacks);
+}
+
+static int open_dev(const hw_module_t* mod, const char* name, hw_device_t** dev) {
+ return gCameraHAL.open(mod, name, dev);
+}
+
+static hw_module_methods_t gCameraModuleMethods = {
+ open : open_dev
+};
+
+camera_module_t HAL_MODULE_INFO_SYM __attribute__ ((visibility("default"))) = {
+ common : {
+ tag : HARDWARE_MODULE_TAG,
+ module_api_version : CAMERA_MODULE_API_VERSION_2_4,
+ hal_api_version : HARDWARE_HAL_API_VERSION,
+ id : CAMERA_HARDWARE_MODULE_ID,
+ name : "Default USB Camera HAL",
+ author : "The Android Open Source Project",
+ methods : &gCameraModuleMethods,
+ dso : NULL,
+ reserved : {0},
+ },
+ get_number_of_cameras : get_number_of_cameras,
+ get_camera_info : get_camera_info,
+ set_callbacks : set_callbacks,
+ get_vendor_tag_ops : NULL,
+ open_legacy : NULL,
+ set_torch_mode : NULL,
+ init : NULL,
+ reserved : {0},
+};
+} // extern "C"
+
+} // namespace usb_camera_hal
diff --git a/libhardware/modules/usbcamera/CameraHAL.h b/libhardware/modules/usbcamera/CameraHAL.h
new file mode 100644
index 0000000..1770d95
--- /dev/null
+++ b/libhardware/modules/usbcamera/CameraHAL.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAMERA_HAL_H_
+#define CAMERA_HAL_H_
+
+#include <hardware/hardware.h>
+#include <hardware/camera_common.h>
+#include <utils/Vector.h>
+#include <utils/Mutex.h>
+#include "HotplugThread.h"
+#include "Camera.h"
+
+namespace usb_camera_hal {
+
+class HotplugThread;
+
+/**
+ * CameraHAL contains all module state that isn't specific to an individual camera device
+ */
+class CameraHAL {
+ public:
+ CameraHAL();
+ ~CameraHAL();
+
+ // Camera Module Interface (see <hardware/camera_common.h>)
+ int getNumberOfCameras();
+ int getCameraInfo(int camera_id, struct camera_info *info);
+ int setCallbacks(const camera_module_callbacks_t *callbacks);
+ void getVendorTagOps(vendor_tag_ops_t* ops);
+
+ // Hardware Module Interface (see <hardware/hardware.h>)
+ int open(const hw_module_t* mod, const char* name, hw_device_t** dev);
+
+ private:
+ // Callback handle
+ const camera_module_callbacks_t *mCallbacks;
+ android::Vector<Camera*> mCameras;
+ // Lock to protect the module method calls.
+ android::Mutex mModuleLock;
+ // Hot plug thread managing camera hot plug.
+ HotplugThread *mHotplugThread;
+
+};
+} // namespace usb_camera_hal
+
+#endif // CAMERA_HAL_H_
diff --git a/libhardware/modules/usbcamera/HotplugThread.cpp b/libhardware/modules/usbcamera/HotplugThread.cpp
new file mode 100644
index 0000000..6c65086
--- /dev/null
+++ b/libhardware/modules/usbcamera/HotplugThread.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "HotplugThread"
+#include <cutils/log.h>
+
+#include "HotplugThread.h"
+
+namespace usb_camera_hal {
+
+HotplugThread::HotplugThread(CameraHAL *hal)
+ : mModule(hal) {
+
+}
+
+HotplugThread::~HotplugThread() {
+
+}
+
+void HotplugThread::requestExit() {
+ // Call parent to set up shutdown
+ Thread::requestExit();
+
+ // Cleanup other states?
+}
+
+bool HotplugThread::threadLoop() {
+
+ /**
+ * Check camera connection status change, if connected, do below:
+ * 1. Create camera device, add to mCameras.
+ * 2. Init static info (mCameras[id]->initStaticInfo())
+ * 3. Notify on_status_change callback
+ *
+ * If unconnected, similarly, do below:
+ * 1. Destroy camera device and remove it from mCameras.
+ * 2. Notify on_status_change callback
+ *
+ * DO NOT have a tight polling loop here, to avoid excessive CPU utilization.
+ */
+
+ return true;
+}
+
+} // namespace usb_camera_hal
diff --git a/libhardware/modules/usbcamera/HotplugThread.h b/libhardware/modules/usbcamera/HotplugThread.h
new file mode 100644
index 0000000..625dcb4
--- /dev/null
+++ b/libhardware/modules/usbcamera/HotplugThread.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef HOTPLUG_THREAD_H_
+#define HOTPLUG_THREAD_H_
+
+#include <utils/Thread.h>
+#include "CameraHAL.h"
+
+namespace usb_camera_hal {
+/**
+ * Thread for managing usb camera hotplug. It does below:
+ * 1. Monitor camera hotplug status, and notify the status changes by calling
+ * module callback methods.
+ * 2. When camera is plugged, create camera device instance, initialize the camera
+ * static info. When camera is unplugged, destroy the camera device instance and
+ * static metadata. As an optimization option, the camera device instance (including
+ * the static info) could be cached when the same camera plugged/unplugged multiple
+ * times.
+ */
+
+class CameraHAL;
+
+class HotplugThread : public android::Thread {
+
+ public:
+ explicit HotplugThread(CameraHAL *hal);
+ ~HotplugThread();
+
+ // Override below two methods for proper cleanup.
+ virtual bool threadLoop();
+ virtual void requestExit();
+
+ private:
+ CameraHAL *mModule;
+};
+
+} // namespace usb_camera_hal
+
+#endif // HOTPLUG_THREAD_H_
diff --git a/libhardware/modules/usbcamera/Metadata.cpp b/libhardware/modules/usbcamera/Metadata.cpp
new file mode 100644
index 0000000..f243834
--- /dev/null
+++ b/libhardware/modules/usbcamera/Metadata.cpp
@@ -0,0 +1,160 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Metadata"
+#include <cutils/log.h>
+
+#include <system/camera_metadata.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "Metadata.h"
+
+namespace usb_camera_hal {
+
+Metadata::Metadata():
+ mData(NULL) {
+}
+
+Metadata::~Metadata() {
+ replace(NULL);
+}
+
+void Metadata::replace(camera_metadata_t *m) {
+ if (m == mData) {
+ return;
+ }
+ if (mData)
+ free_camera_metadata(mData);
+ mData = m;
+}
+
+int Metadata::init(const camera_metadata_t *metadata) {
+ camera_metadata_t* tmp;
+
+ if (!validate_camera_metadata_structure(metadata, NULL))
+ return -EINVAL;
+
+ tmp = clone_camera_metadata(metadata);
+ if (tmp == NULL)
+ return -EINVAL;
+
+ replace(tmp);
+ return 0;
+}
+
+int Metadata::addUInt8(uint32_t tag, int count, const uint8_t *data) {
+ if (!validate(tag, TYPE_BYTE, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::add1UInt8(uint32_t tag, const uint8_t data) {
+ return addUInt8(tag, 1, &data);
+}
+
+int Metadata::addInt32(uint32_t tag, int count, const int32_t *data) {
+ if (!validate(tag, TYPE_INT32, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addFloat(uint32_t tag, int count, const float *data) {
+ if (!validate(tag, TYPE_FLOAT, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addInt64(uint32_t tag, int count, const int64_t *data) {
+ if (!validate(tag, TYPE_INT64, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addDouble(uint32_t tag, int count, const double *data) {
+ if (!validate(tag, TYPE_DOUBLE, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+int Metadata::addRational(uint32_t tag, int count,
+ const camera_metadata_rational_t *data) {
+ if (!validate(tag, TYPE_RATIONAL, count)) return -EINVAL;
+ return add(tag, count, data);
+}
+
+bool Metadata::validate(uint32_t tag, int tag_type, int count) {
+ if (get_camera_metadata_tag_type(tag) < 0) {
+ ALOGE("%s: Invalid metadata entry tag: %d", __func__, tag);
+ return false;
+ }
+ if (tag_type < 0 || tag_type >= NUM_TYPES) {
+ ALOGE("%s: Invalid metadata entry tag type: %d", __func__, tag_type);
+ return false;
+ }
+ if (tag_type != get_camera_metadata_tag_type(tag)) {
+ ALOGE("%s: Tag %d called with incorrect type: %s(%d)", __func__, tag,
+ camera_metadata_type_names[tag_type], tag_type);
+ return false;
+ }
+ if (count < 1) {
+ ALOGE("%s: Invalid metadata entry count: %d", __func__, count);
+ return false;
+ }
+ return true;
+}
+
+int Metadata::add(uint32_t tag, int count, const void *tag_data) {
+ // Opportunistically attempt to add if metadata has room for it
+ if (!add_camera_metadata_entry(mData, tag, tag_data, count)) {
+ return 0;
+ }
+
+ int res;
+ camera_metadata_t* tmp;
+ int tag_type = get_camera_metadata_tag_type(tag);
+ size_t size = calculate_camera_metadata_entry_data_size(tag_type, count);
+ size_t entry_capacity = get_camera_metadata_entry_count(mData) + 1;
+ size_t data_capacity = get_camera_metadata_data_count(mData) + size;
+
+ // Double new dimensions to minimize future reallocations
+ tmp = allocate_camera_metadata(entry_capacity * 2, data_capacity * 2);
+ if (tmp == NULL) {
+ ALOGE("%s: Failed to allocate new metadata with %zu entries, %zu data",
+ __func__, entry_capacity, data_capacity);
+ return -ENOMEM;
+ }
+ // Append the current metadata to the new (empty) metadata
+ res = append_camera_metadata(tmp, mData);
+ if (res) {
+ ALOGE("%s: Failed to append old metadata %p to new %p",
+ __func__, mData, tmp);
+ return res;
+ }
+ // Add the remaining new item
+ res = add_camera_metadata_entry(tmp, tag, tag_data, count);
+ if (res) {
+ ALOGE("%s: Failed to add new entry (%d, %p, %d) to metadata %p",
+ __func__, tag, tag_data, count, tmp);
+ return res;
+ }
+
+ replace(tmp);
+ return 0;
+}
+
+camera_metadata_t* Metadata::get() {
+ return mData;
+}
+
+} // namespace usb_camera_hal
diff --git a/libhardware/modules/usbcamera/Metadata.h b/libhardware/modules/usbcamera/Metadata.h
new file mode 100644
index 0000000..288db16
--- /dev/null
+++ b/libhardware/modules/usbcamera/Metadata.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef METADATA_H_
+#define METADATA_H_
+
+#include <stdint.h>
+#include <hardware/camera3.h>
+#include <system/camera_metadata.h>
+
+namespace usb_camera_hal {
+// Metadata is a convenience class for dealing with libcamera_metadata
+class Metadata {
+ public:
+ Metadata();
+ ~Metadata();
+ // Initialize with framework metadata
+ int init(const camera_metadata_t *metadata);
+
+ // Parse and add an entry. Allocates and copies new storage for *data.
+ int addUInt8(uint32_t tag, int count, const uint8_t *data);
+ int add1UInt8(uint32_t tag, const uint8_t data);
+ int addInt32(uint32_t tag, int count, const int32_t *data);
+ int addFloat(uint32_t tag, int count, const float *data);
+ int addInt64(uint32_t tag, int count, const int64_t *data);
+ int addDouble(uint32_t tag, int count, const double *data);
+ int addRational(uint32_t tag, int count,
+ const camera_metadata_rational_t *data);
+
+ // Get a handle to the current metadata
+ // This is not a durable handle, and may be destroyed by add*/init
+ camera_metadata_t* get();
+
+ private:
+ // Actual internal storage
+ camera_metadata_t* mData;
+ // Destroy old metadata and replace with new
+ void replace(camera_metadata_t *m);
+ // Validate the tag, type and count for a metadata entry
+ bool validate(uint32_t tag, int tag_type, int count);
+ // Add a verified tag with data
+ int add(uint32_t tag, int count, const void *tag_data);
+};
+} // namespace usb_camera_hal
+
+#endif // METADATA_H_
diff --git a/libhardware/modules/usbcamera/Stream.cpp b/libhardware/modules/usbcamera/Stream.cpp
new file mode 100644
index 0000000..f56866e
--- /dev/null
+++ b/libhardware/modules/usbcamera/Stream.cpp
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Stream"
+#include <cutils/log.h>
+
+#include <stdio.h>
+#include <hardware/camera3.h>
+#include <hardware/gralloc.h>
+#include <system/graphics.h>
+#include <utils/Mutex.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "Stream.h"
+
+namespace usb_camera_hal {
+
+Stream::Stream(int id, camera3_stream_t *s)
+ : mReuse(false),
+ mId(id),
+ mStream(s){
+}
+
+Stream::~Stream() {
+ for (size_t i = 0; i < mBuffers.size(); i++) {
+ delete mBuffers[i];
+ }
+
+ mBuffers.clear();
+}
+
+void Stream::setUsage(uint32_t usage) {
+ android::Mutex::Autolock al(mLock);
+ if (usage != mStream->usage) {
+ mStream->usage = usage;
+ }
+}
+
+void Stream::setMaxBuffers(uint32_t max_buffers) {
+ android::Mutex::Autolock al(mLock);
+ if (max_buffers != mStream->max_buffers) {
+ mStream->max_buffers = max_buffers;
+ }
+}
+
+int Stream::getType() {
+ return mStream->stream_type;
+}
+
+bool Stream::isInputType() {
+ return mStream->stream_type == CAMERA3_STREAM_INPUT ||
+ mStream->stream_type == CAMERA3_STREAM_BIDIRECTIONAL;
+}
+
+bool Stream::isOutputType() {
+ return mStream->stream_type == CAMERA3_STREAM_OUTPUT ||
+ mStream->stream_type == CAMERA3_STREAM_BIDIRECTIONAL;
+}
+
+const char* Stream::typeToString(int type) {
+ switch (type) {
+ case CAMERA3_STREAM_INPUT:
+ return "CAMERA3_STREAM_INPUT";
+ case CAMERA3_STREAM_OUTPUT:
+ return "CAMERA3_STREAM_OUTPUT";
+ case CAMERA3_STREAM_BIDIRECTIONAL:
+ return "CAMERA3_STREAM_BIDIRECTIONAL";
+ }
+ return "Invalid stream type!";
+}
+
+const char* Stream::formatToString(int format) {
+ // See <system/graphics.h> for full list
+ switch (format) {
+ case HAL_PIXEL_FORMAT_BGRA_8888:
+ return "BGRA 8888";
+ case HAL_PIXEL_FORMAT_RGBA_8888:
+ return "RGBA 8888";
+ case HAL_PIXEL_FORMAT_RGBX_8888:
+ return "RGBX 8888";
+ case HAL_PIXEL_FORMAT_RGB_888:
+ return "RGB 888";
+ case HAL_PIXEL_FORMAT_RGB_565:
+ return "RGB 565";
+ case HAL_PIXEL_FORMAT_Y8:
+ return "Y8";
+ case HAL_PIXEL_FORMAT_Y16:
+ return "Y16";
+ case HAL_PIXEL_FORMAT_YV12:
+ return "YV12";
+ case HAL_PIXEL_FORMAT_YCbCr_422_SP:
+ return "NV16";
+ case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+ return "NV21";
+ case HAL_PIXEL_FORMAT_YCbCr_422_I:
+ return "YUY2";
+ case HAL_PIXEL_FORMAT_RAW10:
+ return "RAW10";
+ case HAL_PIXEL_FORMAT_RAW16:
+ return "RAW16";
+ case HAL_PIXEL_FORMAT_BLOB:
+ return "BLOB";
+ case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
+ return "IMPLEMENTATION DEFINED";
+ case HAL_PIXEL_FORMAT_YCbCr_420_888:
+ return "FLEXIBLE YCbCr 420 888";
+ }
+ return "Invalid stream format!";
+}
+
+bool Stream::isValidReuseStream(int id, camera3_stream_t *s) {
+ if (id != mId) {
+ ALOGE("%s:%d: Invalid camera id for reuse. Got %d expect %d",
+ __func__, mId, id, mId);
+ return false;
+ }
+ if (s != mStream) {
+ ALOGE("%s:%d: Invalid stream handle for reuse. Got %p expect %p",
+ __func__, mId, s, mStream);
+ return false;
+ }
+ if (s->stream_type != mStream->stream_type) {
+ ALOGE("%s:%d: Mismatched type in reused stream. Got %s(%d) "
+ "expect %s(%d)", __func__, mId, typeToString(s->stream_type),
+ s->stream_type, typeToString(mStream->stream_type), mStream->stream_type);
+ return false;
+ }
+ if (s->format != mStream->format) {
+ ALOGE("%s:%d: Mismatched format in reused stream. Got %s(%d) "
+ "expect %s(%d)", __func__, mId, formatToString(s->format),
+ s->format, formatToString(mStream->format), mStream->format);
+ return false;
+ }
+ if (s->width != mStream->width) {
+ ALOGE("%s:%d: Mismatched width in reused stream. Got %d expect %d",
+ __func__, mId, s->width, mStream->width);
+ return false;
+ }
+ if (s->height != mStream->height) {
+ ALOGE("%s:%d: Mismatched height in reused stream. Got %d expect %d",
+ __func__, mId, s->height, mStream->height);
+ return false;
+ }
+ return true;
+}
+
+void Stream::dump(int fd) {
+ android::Mutex::Autolock al(mLock);
+
+ dprintf(fd, "Stream ID: %d (%p)\n", mId, mStream);
+ dprintf(fd, "Stream Type: %s (%d)\n", typeToString(mStream->stream_type), mStream->stream_type);
+ dprintf(fd, "Width: %" PRIu32 " Height: %" PRIu32 "\n", mStream->width, mStream->height);
+ dprintf(fd, "Stream Format: %s (%d)", formatToString(mStream->format), mStream->format);
+ // ToDo: prettyprint usage mask flags
+ dprintf(fd, "Gralloc Usage Mask: %#" PRIx32 "\n", mStream->usage);
+ dprintf(fd, "Max Buffer Count: %" PRIu32 "\n", mStream->max_buffers);
+ dprintf(fd, "Number of Buffers in use by HAL: %" PRIu32 "\n", mBuffers.size());
+ for (size_t i = 0; i < mBuffers.size(); i++) {
+ dprintf(fd, "Buffer %" PRIu32 "/%" PRIu32 ": %p\n", i, mBuffers.size(),
+ mBuffers[i]);
+ }
+}
+
+} // namespace usb_camera_hal
diff --git a/libhardware/modules/usbcamera/Stream.h b/libhardware/modules/usbcamera/Stream.h
new file mode 100644
index 0000000..022ca9f
--- /dev/null
+++ b/libhardware/modules/usbcamera/Stream.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STREAM_H_
+#define STREAM_H_
+
+#include <hardware/camera3.h>
+#include <hardware/gralloc.h>
+#include <system/graphics.h>
+#include <utils/Mutex.h>
+#include <utils/Vector.h>
+
+namespace usb_camera_hal {
+// Stream represents a single input or output stream for a camera device.
+class Stream {
+ public:
+ Stream(int id, camera3_stream_t *s);
+ ~Stream();
+
+ // validate that a stream's parameters match this stream's parameters
+ bool isValidReuseStream(int id, camera3_stream_t *s);
+
+ void setUsage(uint32_t usage);
+ void setMaxBuffers(uint32_t max_buffers);
+
+ int getType();
+ bool isInputType();
+ bool isOutputType();
+ const char* typeToString(int type);
+ const char* formatToString(int format);
+ void dump(int fd);
+
+ // This stream is being reused. Used in stream configuration passes
+ bool mReuse;
+
+ private:
+ // The camera device id this stream belongs to
+ const int mId;
+ // Handle to framework's stream, used as a cookie for buffers
+ camera3_stream_t *mStream;
+ // Array of handles to buffers currently in use by the stream
+ android::Vector<buffer_handle_t *> mBuffers;
+ // Lock protecting the Stream object for modifications
+ android::Mutex mLock;
+};
+} // namespace usb_camera_hal
+
+#endif // STREAM_H_
diff --git a/libhardware/modules/usbcamera/UsbCamera.cpp b/libhardware/modules/usbcamera/UsbCamera.cpp
new file mode 100644
index 0000000..d0aaded
--- /dev/null
+++ b/libhardware/modules/usbcamera/UsbCamera.cpp
@@ -0,0 +1,321 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "UsbCameraDevice"
+#include <cutils/log.h>
+
+#include <system/camera_metadata.h>
+
+#define ATRACE_TAG (ATRACE_TAG_CAMERA | ATRACE_TAG_HAL)
+#include <utils/Trace.h>
+
+#include "Camera.h"
+#include "UsbCamera.h"
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
+
+namespace usb_camera_hal {
+
+UsbCamera::UsbCamera(int id) : Camera(id) {
+}
+
+UsbCamera::~UsbCamera() {
+}
+
+int UsbCamera::initStaticInfo() {
+ /*
+ * Setup static camera info. This will have to customized per camera
+ * device.
+ * TODO: this is just some sample code, need tailor for USB cameras.
+ */
+ if (mStaticInfo != NULL) {
+ free_camera_metadata(mStaticInfo);
+ }
+
+ Metadata m;
+
+ /* android.control */
+ int32_t android_control_ae_available_target_fps_ranges[] = {30, 30};
+ m.addInt32(ANDROID_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES,
+ ARRAY_SIZE(android_control_ae_available_target_fps_ranges),
+ android_control_ae_available_target_fps_ranges);
+
+ int32_t android_control_ae_compensation_range[] = {-4, 4};
+ m.addInt32(ANDROID_CONTROL_AE_COMPENSATION_RANGE,
+ ARRAY_SIZE(android_control_ae_compensation_range),
+ android_control_ae_compensation_range);
+
+ camera_metadata_rational_t android_control_ae_compensation_step[] = {{2,1}};
+ m.addRational(ANDROID_CONTROL_AE_COMPENSATION_STEP,
+ ARRAY_SIZE(android_control_ae_compensation_step),
+ android_control_ae_compensation_step);
+
+ int32_t android_control_max_regions[] = {/*AE*/ 1,/*AWB*/ 1,/*AF*/ 1};
+ m.addInt32(ANDROID_CONTROL_MAX_REGIONS,
+ ARRAY_SIZE(android_control_max_regions),
+ android_control_max_regions);
+
+ /* android.jpeg */
+ int32_t android_jpeg_available_thumbnail_sizes[] = {0, 0, 128, 96};
+ m.addInt32(ANDROID_JPEG_AVAILABLE_THUMBNAIL_SIZES,
+ ARRAY_SIZE(android_jpeg_available_thumbnail_sizes),
+ android_jpeg_available_thumbnail_sizes);
+
+ int32_t android_jpeg_max_size[] = {13 * 1024 * 1024}; // 13MB
+ m.addInt32(ANDROID_JPEG_MAX_SIZE,
+ ARRAY_SIZE(android_jpeg_max_size),
+ android_jpeg_max_size);
+
+ /* android.lens */
+ float android_lens_info_available_focal_lengths[] = {1.0};
+ m.addFloat(ANDROID_LENS_INFO_AVAILABLE_FOCAL_LENGTHS,
+ ARRAY_SIZE(android_lens_info_available_focal_lengths),
+ android_lens_info_available_focal_lengths);
+
+ /* android.request */
+ int32_t android_request_max_num_output_streams[] = {0, 3, 1};
+ m.addInt32(ANDROID_REQUEST_MAX_NUM_OUTPUT_STREAMS,
+ ARRAY_SIZE(android_request_max_num_output_streams),
+ android_request_max_num_output_streams);
+
+ /* android.scaler */
+ int32_t android_scaler_available_formats[] = {
+ HAL_PIXEL_FORMAT_RAW16,
+ HAL_PIXEL_FORMAT_BLOB,
+ HAL_PIXEL_FORMAT_RGBA_8888,
+ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ // These are handled by YCbCr_420_888
+ // HAL_PIXEL_FORMAT_YV12,
+ // HAL_PIXEL_FORMAT_YCrCb_420_SP,
+ HAL_PIXEL_FORMAT_YCbCr_420_888};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_FORMATS,
+ ARRAY_SIZE(android_scaler_available_formats),
+ android_scaler_available_formats);
+
+ int64_t android_scaler_available_jpeg_min_durations[] = {1};
+ m.addInt64(ANDROID_SCALER_AVAILABLE_JPEG_MIN_DURATIONS,
+ ARRAY_SIZE(android_scaler_available_jpeg_min_durations),
+ android_scaler_available_jpeg_min_durations);
+
+ int32_t android_scaler_available_jpeg_sizes[] = {640, 480};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_JPEG_SIZES,
+ ARRAY_SIZE(android_scaler_available_jpeg_sizes),
+ android_scaler_available_jpeg_sizes);
+
+ float android_scaler_available_max_digital_zoom[] = {1};
+ m.addFloat(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM,
+ ARRAY_SIZE(android_scaler_available_max_digital_zoom),
+ android_scaler_available_max_digital_zoom);
+
+ int64_t android_scaler_available_processed_min_durations[] = {1};
+ m.addInt64(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS,
+ ARRAY_SIZE(android_scaler_available_processed_min_durations),
+ android_scaler_available_processed_min_durations);
+
+ int32_t android_scaler_available_processed_sizes[] = {640, 480};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES,
+ ARRAY_SIZE(android_scaler_available_processed_sizes),
+ android_scaler_available_processed_sizes);
+
+ int64_t android_scaler_available_raw_min_durations[] = {1};
+ m.addInt64(ANDROID_SCALER_AVAILABLE_RAW_MIN_DURATIONS,
+ ARRAY_SIZE(android_scaler_available_raw_min_durations),
+ android_scaler_available_raw_min_durations);
+
+ int32_t android_scaler_available_raw_sizes[] = {640, 480};
+ m.addInt32(ANDROID_SCALER_AVAILABLE_RAW_SIZES,
+ ARRAY_SIZE(android_scaler_available_raw_sizes),
+ android_scaler_available_raw_sizes);
+
+ /* android.sensor */
+
+ int32_t android_sensor_info_active_array_size[] = {0, 0, 640, 480};
+ m.addInt32(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE,
+ ARRAY_SIZE(android_sensor_info_active_array_size),
+ android_sensor_info_active_array_size);
+
+ int32_t android_sensor_info_sensitivity_range[] =
+ {100, 1600};
+ m.addInt32(ANDROID_SENSOR_INFO_SENSITIVITY_RANGE,
+ ARRAY_SIZE(android_sensor_info_sensitivity_range),
+ android_sensor_info_sensitivity_range);
+
+ int64_t android_sensor_info_max_frame_duration[] = {30000000000};
+ m.addInt64(ANDROID_SENSOR_INFO_MAX_FRAME_DURATION,
+ ARRAY_SIZE(android_sensor_info_max_frame_duration),
+ android_sensor_info_max_frame_duration);
+
+ float android_sensor_info_physical_size[] = {3.2, 2.4};
+ m.addFloat(ANDROID_SENSOR_INFO_PHYSICAL_SIZE,
+ ARRAY_SIZE(android_sensor_info_physical_size),
+ android_sensor_info_physical_size);
+
+ int32_t android_sensor_info_pixel_array_size[] = {640, 480};
+ m.addInt32(ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE,
+ ARRAY_SIZE(android_sensor_info_pixel_array_size),
+ android_sensor_info_pixel_array_size);
+
+ int32_t android_sensor_orientation[] = {0};
+ m.addInt32(ANDROID_SENSOR_ORIENTATION,
+ ARRAY_SIZE(android_sensor_orientation),
+ android_sensor_orientation);
+
+ /* End of static camera characteristics */
+
+ mStaticInfo = clone_camera_metadata(m.get());
+
+ return 0;
+}
+
+int UsbCamera::openDevice() {
+ // TODO: implement usb camera device open sequence: open device nodes etc.
+
+ return 0;
+}
+
+int UsbCamera::closeDevice() {
+ // TODO: implement usb camera device close sequence: close device nodes etc.
+
+ return 0;
+}
+
+int UsbCamera::processCaptureBuffer(const camera3_stream_buffer_t *in,
+ camera3_stream_buffer_t *out) {
+ if (in->acquire_fence != -1) {
+ int res = sync_wait(in->acquire_fence, CAMERA_SYNC_TIMEOUT_MS);
+ if (res == -ETIME) {
+ ALOGE("%s:%d: Timeout waiting on buffer acquire fence",
+ __func__, mId);
+ return res;
+ } else if (res) {
+ ALOGE("%s:%d: Error waiting on buffer acquire fence: %s(%d)",
+ __func__, mId, strerror(-res), res);
+ return res;
+ }
+ }
+
+ out->stream = in->stream;
+ out->buffer = in->buffer;
+ out->status = CAMERA3_BUFFER_STATUS_OK;
+ // TODO: use driver-backed release fences
+ out->acquire_fence = -1;
+ out->release_fence = -1;
+
+ // TODO: lock and software-paint buffer
+ return 0;
+}
+
+int UsbCamera::initDevice() {
+ int res;
+ Metadata base;
+
+ // Create standard settings templates from copies of base metadata
+ res = base.add1UInt8(ANDROID_CONTROL_MODE, ANDROID_CONTROL_MODE_OFF);
+ if (res)
+ return res;
+
+ // Use base settings to create all other templates and set them. This is just some samples,
+ // More initialization may be needed.
+ res = initPreviewTemplate(base);
+ if (res)
+ return res;
+ res = initStillTemplate(base);
+ if (res)
+ return res;
+ res = initRecordTemplate(base);
+ if (res)
+ return res;
+ res = initSnapshotTemplate(base);
+ if (res)
+ return res;
+ res = initZslTemplate(base);
+ if (res)
+ return res;
+ res = initManualTemplate(base);
+ if (res)
+ return res;
+
+ return 0;
+}
+
+int UsbCamera::initPreviewTemplate(Metadata m) {
+ // Setup default preview controls
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_PREVIEW);
+
+ if (res)
+ return res;
+ // TODO: set fast auto-focus, auto-whitebalance, auto-exposure, auto flash
+ return setTemplate(CAMERA3_TEMPLATE_PREVIEW, m.get());
+}
+
+int UsbCamera::initStillTemplate(Metadata m) {
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_STILL_CAPTURE);
+ // Setup default still capture controls
+ if (res)
+ return res;
+ // TODO: set fast auto-focus, auto-whitebalance, auto-exposure, auto flash
+ return setTemplate(CAMERA3_TEMPLATE_STILL_CAPTURE, m.get());
+}
+
+int UsbCamera::initRecordTemplate(Metadata m) {
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_VIDEO_RECORD);
+ // Setup default video record controls
+ if (res)
+ return res;
+ // TODO: set slow auto-focus, auto-whitebalance, auto-exposure, flash off
+ return setTemplate(CAMERA3_TEMPLATE_VIDEO_RECORD, m.get());
+}
+
+int UsbCamera::initSnapshotTemplate(Metadata m) {
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT);
+ // Setup default video snapshot controls
+ if (res)
+ return res;
+ // TODO: set slow auto-focus, auto-whitebalance, auto-exposure, flash off
+ return setTemplate(CAMERA3_TEMPLATE_VIDEO_SNAPSHOT, m.get());
+}
+
+int UsbCamera::initZslTemplate(Metadata m) {
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG);
+ // Setup default zero shutter lag controls
+ if (res)
+ return res;
+ // TODO: set reprocessing parameters for zsl input queue
+ return setTemplate(CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG, m.get());
+}
+
+int UsbCamera::initManualTemplate(Metadata m) {
+ int res = m.add1UInt8(ANDROID_CONTROL_CAPTURE_INTENT,
+ ANDROID_CONTROL_CAPTURE_INTENT_MANUAL);
+ // Setup manual controls
+ if (res)
+ return res;
+ // TODO: set reprocessing parameters for zsl input queue
+ return setTemplate(CAMERA3_TEMPLATE_MANUAL, m.get());
+}
+
+bool UsbCamera::isValidCaptureSettings(const camera_metadata_t* settings) {
+ // TODO: reject settings that cannot be captured
+ return true;
+}
+
+} // namespace usb_camera_hal
diff --git a/libhardware/modules/usbcamera/UsbCamera.h b/libhardware/modules/usbcamera/UsbCamera.h
new file mode 100644
index 0000000..57017fe
--- /dev/null
+++ b/libhardware/modules/usbcamera/UsbCamera.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef EXAMPLE_CAMERA_H_
+#define EXAMPLE_CAMERA_H_
+
+#include <system/camera_metadata.h>
+#include "Camera.h"
+
+namespace usb_camera_hal {
+/**
+ * UsbCamera is an example for a specific camera device. The Camera instance contains
+ * a specific camera device (e.g. UsbCamera) holds all specific metadata and logic about
+ * that device.
+ */
+class UsbCamera : public Camera {
+ public:
+ explicit UsbCamera(int id);
+ ~UsbCamera();
+
+ private:
+ // Initialize static camera characteristics for individual device
+ int initStaticInfo();
+ int openDevice();
+ // Initialize whole device (templates/etc) when opened
+ int initDevice();
+ int flushDevice();
+ int closeDevice();
+ int processCaptureBuffer(const camera3_stream_buffer_t *in, camera3_stream_buffer_t *out);
+ // Initialize each template metadata controls
+ int initPreviewTemplate(Metadata m);
+ int initStillTemplate(Metadata m);
+ int initRecordTemplate(Metadata m);
+ int initSnapshotTemplate(Metadata m);
+ int initZslTemplate(Metadata m);
+ int initManualTemplate(Metadata m);
+ // Verify settings are valid for a capture with this device
+ bool isValidCaptureSettings(const camera_metadata_t* settings);
+};
+} // namespace usb_camera_hal
+
+#endif // CAMERA_H_
diff --git a/libhardware/modules/vibrator/Android.bp b/libhardware/modules/vibrator/Android.bp
new file mode 100644
index 0000000..f9afd45
--- /dev/null
+++ b/libhardware/modules/vibrator/Android.bp
@@ -0,0 +1,24 @@
+// Copyright (C) 2012 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+cc_library_shared {
+ name: "vibrator.default",
+
+ // HAL module implementation stored in
+ // hw/<VIBRATOR_HARDWARE_MODULE_ID>.default.so
+ relative_install_path: "hw",
+ include_dirs: ["hardware/libhardware"],
+ srcs: ["vibrator.c"],
+ shared_libs: ["liblog"],
+}
diff --git a/libhardware/modules/vibrator/vibrator.c b/libhardware/modules/vibrator/vibrator.c
new file mode 100644
index 0000000..c3c2951
--- /dev/null
+++ b/libhardware/modules/vibrator/vibrator.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <hardware/vibrator.h>
+#include <hardware/hardware.h>
+
+#include <cutils/log.h>
+
+#include <malloc.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <math.h>
+
+#define TIMEOUT_STR_LEN 20
+
+static const char THE_DEVICE[] = "/sys/class/timed_output/vibrator/enable";
+
+static int vibra_exists() {
+ int fd;
+
+ fd = TEMP_FAILURE_RETRY(open(THE_DEVICE, O_RDWR));
+ if(fd < 0) {
+ return 0;
+ }
+
+ close(fd);
+ return 1;
+}
+
+static int write_value(const char *file, const char *value)
+{
+ int to_write, written, ret, fd;
+
+ fd = TEMP_FAILURE_RETRY(open(file, O_WRONLY));
+ if (fd < 0) {
+ return -errno;
+ }
+
+ to_write = strlen(value) + 1;
+ written = TEMP_FAILURE_RETRY(write(fd, value, to_write));
+ if (written == -1) {
+ ret = -errno;
+ } else if (written != to_write) {
+ /* even though EAGAIN is an errno value that could be set
+ by write() in some cases, none of them apply here. So, this return
+ value can be clearly identified when debugging and suggests the
+ caller that it may try to call vibrator_on() again */
+ ret = -EAGAIN;
+ } else {
+ ret = 0;
+ }
+
+ errno = 0;
+ close(fd);
+
+ return ret;
+}
+
+static int sendit(unsigned int timeout_ms)
+{
+ char value[TIMEOUT_STR_LEN]; /* large enough for millions of years */
+
+ snprintf(value, sizeof(value), "%u", timeout_ms);
+ return write_value(THE_DEVICE, value);
+}
+
+static int vibra_on(vibrator_device_t* vibradev __unused, unsigned int timeout_ms)
+{
+ /* constant on, up to maximum allowed time */
+ return sendit(timeout_ms);
+}
+
+static int vibra_off(vibrator_device_t* vibradev __unused)
+{
+ return sendit(0);
+}
+
+static const char LED_DEVICE[] = "/sys/class/leds/vibrator";
+
+static int write_led_file(const char *file, const char *value)
+{
+ char file_str[50];
+
+ snprintf(file_str, sizeof(file_str), "%s/%s", LED_DEVICE, file);
+ return write_value(file_str, value);
+}
+
+static int vibra_led_exists()
+{
+ return !write_led_file("trigger", "transient");
+}
+
+static int vibra_led_on(vibrator_device_t* vibradev __unused, unsigned int timeout_ms)
+{
+ int ret;
+ char value[TIMEOUT_STR_LEN]; /* large enough for millions of years */
+
+ ret = write_led_file("state", "1");
+ if (ret)
+ return ret;
+
+ snprintf(value, sizeof(value), "%u\n", timeout_ms);
+ ret = write_led_file("duration", value);
+ if (ret)
+ return ret;
+
+ return write_led_file("activate", "1");
+}
+
+static int vibra_led_off(vibrator_device_t* vibradev __unused)
+{
+ return write_led_file("activate", "0");
+}
+
+static int vibra_close(hw_device_t *device)
+{
+ free(device);
+ return 0;
+}
+
+static int vibra_open(const hw_module_t* module, const char* id __unused,
+ hw_device_t** device __unused) {
+ bool use_led;
+
+ if (vibra_exists()) {
+ ALOGD("Vibrator using timed_output");
+ use_led = false;
+ } else if (vibra_led_exists()) {
+ ALOGD("Vibrator using LED trigger");
+ use_led = true;
+ } else {
+ ALOGE("Vibrator device does not exist. Cannot start vibrator");
+ return -ENODEV;
+ }
+
+ vibrator_device_t *vibradev = calloc(1, sizeof(vibrator_device_t));
+
+ if (!vibradev) {
+ ALOGE("Can not allocate memory for the vibrator device");
+ return -ENOMEM;
+ }
+
+ vibradev->common.tag = HARDWARE_DEVICE_TAG;
+ vibradev->common.module = (hw_module_t *) module;
+ vibradev->common.version = HARDWARE_DEVICE_API_VERSION(1,0);
+ vibradev->common.close = vibra_close;
+
+ if (use_led) {
+ vibradev->vibrator_on = vibra_led_on;
+ vibradev->vibrator_off = vibra_led_off;
+ } else {
+ vibradev->vibrator_on = vibra_on;
+ vibradev->vibrator_off = vibra_off;
+ }
+
+ *device = (hw_device_t *) vibradev;
+
+ return 0;
+}
+
+/*===========================================================================*/
+/* Default vibrator HW module interface definition */
+/*===========================================================================*/
+
+static struct hw_module_methods_t vibrator_module_methods = {
+ .open = vibra_open,
+};
+
+struct hw_module_t HAL_MODULE_INFO_SYM = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = VIBRATOR_API_VERSION,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = VIBRATOR_HARDWARE_MODULE_ID,
+ .name = "Default vibrator HAL",
+ .author = "The Android Open Source Project",
+ .methods = &vibrator_module_methods,
+};
diff --git a/libhardware/tests/Android.mk b/libhardware/tests/Android.mk
new file mode 100644
index 0000000..5053e7d
--- /dev/null
+++ b/libhardware/tests/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/libhardware/tests/camera2/Android.mk b/libhardware/tests/camera2/Android.mk
new file mode 100644
index 0000000..e45f467
--- /dev/null
+++ b/libhardware/tests/camera2/Android.mk
@@ -0,0 +1,43 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ camera2_utils.cpp \
+ main.cpp \
+ CameraMetadataTests.cpp \
+ CameraModuleTests.cpp \
+ CameraStreamTests.cpp \
+ CameraFrameTests.cpp \
+ CameraBurstTests.cpp \
+ CameraMultiStreamTests.cpp\
+ ForkedTests.cpp \
+ TestForkerEventListener.cpp \
+ TestSettings.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ liblog \
+ libutils \
+ libcutils \
+ libhardware \
+ libcamera_metadata \
+ libcameraservice \
+ libcamera_client \
+ libgui \
+ libsync \
+ libui \
+ libdl
+
+LOCAL_C_INCLUDES += \
+ system/media/camera/include \
+ frameworks/av/include/ \
+ frameworks/av/services/camera/libcameraservice \
+ frameworks/native/include \
+
+LOCAL_CFLAGS += -Wall -Wextra
+LOCAL_MODULE:= camera2_test
+LOCAL_MODULE_STEM_32 := camera2_test
+LOCAL_MODULE_STEM_64 := camera2_test64
+LOCAL_MULTILIB := both
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_NATIVE_TEST)
diff --git a/libhardware/tests/camera2/CameraBurstTests.cpp b/libhardware/tests/camera2/CameraBurstTests.cpp
new file mode 100644
index 0000000..198c0c1
--- /dev/null
+++ b/libhardware/tests/camera2/CameraBurstTests.cpp
@@ -0,0 +1,731 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+#include <inttypes.h>
+
+#define LOG_TAG "CameraBurstTest"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+#include <utils/Timers.h>
+
+#include <cmath>
+
+#include "CameraStreamFixture.h"
+#include "TestExtensions.h"
+
+#define CAMERA_FRAME_TIMEOUT 1000000000LL //nsecs (1 secs)
+#define CAMERA_HEAP_COUNT 2 //HALBUG: 1 means registerBuffers fails
+#define CAMERA_BURST_DEBUGGING 0
+#define CAMERA_FRAME_BURST_COUNT 10
+
+/* constants for the exposure test */
+#define CAMERA_EXPOSURE_DOUBLE 2
+#define CAMERA_EXPOSURE_DOUBLING_THRESHOLD 1.0f
+#define CAMERA_EXPOSURE_DOUBLING_COUNT 4
+#define CAMERA_EXPOSURE_FORMAT CAMERA_STREAM_AUTO_CPU_FORMAT
+#define CAMERA_EXPOSURE_STARTING 100000 // 1/10ms, up to 51.2ms with 10 steps
+
+#define USEC 1000LL // in ns
+#define MSEC 1000000LL // in ns
+#define SEC 1000000000LL // in ns
+
+#if CAMERA_BURST_DEBUGGING
+#define dout std::cout
+#else
+#define dout if (0) std::cout
+#endif
+
+#define WARN_UNLESS(condition) if(!(condition)) std::cerr << "Warning: "
+#define WARN_LE(exp, act) WARN_UNLESS((exp) <= (act))
+#define WARN_LT(exp, act) WARN_UNLESS((exp) < (act))
+#define WARN_GT(exp, act) WARN_UNLESS((exp) > (act))
+
+using namespace android;
+using namespace android::camera2;
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+static CameraStreamParams STREAM_PARAMETERS = {
+ /*mFormat*/ CAMERA_EXPOSURE_FORMAT,
+ /*mHeapCount*/ CAMERA_HEAP_COUNT
+};
+
+class CameraBurstTest
+ : public ::testing::Test,
+ public CameraStreamFixture {
+
+public:
+ CameraBurstTest() : CameraStreamFixture(STREAM_PARAMETERS) {
+ TEST_EXTENSION_FORKING_CONSTRUCTOR;
+
+ if (HasFatalFailure()) {
+ return;
+ }
+
+ CreateStream();
+ }
+
+ ~CameraBurstTest() {
+ TEST_EXTENSION_FORKING_DESTRUCTOR;
+
+ if (mDevice.get()) {
+ mDevice->waitUntilDrained();
+ }
+ DeleteStream();
+ }
+
+ virtual void SetUp() {
+ TEST_EXTENSION_FORKING_SET_UP;
+ }
+ virtual void TearDown() {
+ TEST_EXTENSION_FORKING_TEAR_DOWN;
+ }
+
+ /* this assumes the format is YUV420sp or flexible YUV */
+ long long TotalBrightness(const CpuConsumer::LockedBuffer& imgBuffer,
+ int *underexposed,
+ int *overexposed) const {
+
+ const uint8_t* buf = imgBuffer.data;
+ size_t stride = imgBuffer.stride;
+
+ /* iterate over the Y plane only */
+ long long acc = 0;
+
+ *underexposed = 0;
+ *overexposed = 0;
+
+ for (size_t y = 0; y < imgBuffer.height; ++y) {
+ for (size_t x = 0; x < imgBuffer.width; ++x) {
+ const uint8_t p = buf[y * stride + x];
+
+ if (p == 0) {
+ if (underexposed) {
+ ++*underexposed;
+ }
+ continue;
+ } else if (p == 255) {
+ if (overexposed) {
+ ++*overexposed;
+ }
+ continue;
+ }
+
+ acc += p;
+ }
+ }
+
+ return acc;
+ }
+
+ // Parses a comma-separated string list into a Vector
+ template<typename T>
+ void ParseList(const char *src, Vector<T> &list) {
+ std::istringstream s(src);
+ while (!s.eof()) {
+ char c = s.peek();
+ if (c == ',' || c == ' ') {
+ s.ignore(1, EOF);
+ continue;
+ }
+ T val;
+ s >> val;
+ list.push_back(val);
+ }
+ }
+
+};
+
+TEST_F(CameraBurstTest, ManualExposureControl) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ // Range of valid exposure times, in nanoseconds
+ int64_t minExp, maxExp;
+ {
+ camera_metadata_ro_entry exposureTimeRange =
+ GetStaticEntry(ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE);
+
+ ASSERT_EQ(2u, exposureTimeRange.count);
+ minExp = exposureTimeRange.data.i64[0];
+ maxExp = exposureTimeRange.data.i64[1];
+ }
+
+ dout << "Min exposure is " << minExp;
+ dout << " max exposure is " << maxExp << std::endl;
+
+ // Calculate some set of valid exposure times for each request
+ int64_t exposures[CAMERA_FRAME_BURST_COUNT];
+ exposures[0] = CAMERA_EXPOSURE_STARTING;
+ for (int i = 1; i < CAMERA_FRAME_BURST_COUNT; ++i) {
+ exposures[i] = exposures[i-1] * CAMERA_EXPOSURE_DOUBLE;
+ }
+ // Our calculated exposure times should be in [minExp, maxExp]
+ EXPECT_LE(minExp, exposures[0])
+ << "Minimum exposure range is too high, wanted at most "
+ << exposures[0] << "ns";
+ EXPECT_GE(maxExp, exposures[CAMERA_FRAME_BURST_COUNT-1])
+ << "Maximum exposure range is too low, wanted at least "
+ << exposures[CAMERA_FRAME_BURST_COUNT-1] << "ns";
+
+ // Create a preview request, turning off all 3A
+ CameraMetadata previewRequest;
+ ASSERT_EQ(OK, mDevice->createDefaultRequest(CAMERA2_TEMPLATE_PREVIEW,
+ &previewRequest));
+ {
+ Vector<int32_t> outputStreamIds;
+ outputStreamIds.push(mStreamId);
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_OUTPUT_STREAMS,
+ outputStreamIds));
+
+ // Disable all 3A routines
+ uint8_t cmOff = static_cast<uint8_t>(ANDROID_CONTROL_MODE_OFF);
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_CONTROL_MODE,
+ &cmOff, 1));
+
+ int requestId = 1;
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_ID,
+ &requestId, 1));
+
+ if (CAMERA_BURST_DEBUGGING) {
+ int frameCount = 0;
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_FRAME_COUNT,
+ &frameCount, 1));
+ }
+ }
+
+ if (CAMERA_BURST_DEBUGGING) {
+ previewRequest.dump(STDOUT_FILENO);
+ }
+
+ // Submit capture requests
+ for (int i = 0; i < CAMERA_FRAME_BURST_COUNT; ++i) {
+ CameraMetadata tmpRequest = previewRequest;
+ ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_EXPOSURE_TIME,
+ &exposures[i], 1));
+ ALOGV("Submitting capture request %d with exposure %" PRId64, i,
+ exposures[i]);
+ dout << "Capture request " << i << " exposure is "
+ << (exposures[i]/1e6f) << std::endl;
+ ASSERT_EQ(OK, mDevice->capture(tmpRequest));
+ }
+
+ dout << "Buffer dimensions " << mWidth << "x" << mHeight << std::endl;
+
+ float brightnesses[CAMERA_FRAME_BURST_COUNT];
+ // Get each frame (metadata) and then the buffer. Calculate brightness.
+ for (int i = 0; i < CAMERA_FRAME_BURST_COUNT; ++i) {
+ ALOGV("Reading capture request %d with exposure %" PRId64, i, exposures[i]);
+ ASSERT_EQ(OK, mDevice->waitForNextFrame(CAMERA_FRAME_TIMEOUT));
+ ALOGV("Reading capture request-1 %d", i);
+ CaptureResult result;
+ ASSERT_EQ(OK, mDevice->getNextResult(&result));
+ ALOGV("Reading capture request-2 %d", i);
+
+ ASSERT_EQ(OK, mFrameListener->waitForFrame(CAMERA_FRAME_TIMEOUT));
+ ALOGV("We got the frame now");
+
+ CpuConsumer::LockedBuffer imgBuffer;
+ ASSERT_EQ(OK, mCpuConsumer->lockNextBuffer(&imgBuffer));
+
+ int underexposed, overexposed;
+ long long brightness = TotalBrightness(imgBuffer, &underexposed,
+ &overexposed);
+ float avgBrightness = brightness * 1.0f /
+ (mWidth * mHeight - (underexposed + overexposed));
+ ALOGV("Total brightness for frame %d was %lld (underexposed %d, "
+ "overexposed %d), avg %f", i, brightness, underexposed,
+ overexposed, avgBrightness);
+ dout << "Average brightness (frame " << i << ") was " << avgBrightness
+ << " (underexposed " << underexposed << ", overexposed "
+ << overexposed << ")" << std::endl;
+
+ ASSERT_EQ(OK, mCpuConsumer->unlockBuffer(imgBuffer));
+
+ brightnesses[i] = avgBrightness;
+ }
+
+ // Calculate max consecutive frame exposure doubling
+ float prev = brightnesses[0];
+ int doubling_count = 1;
+ int max_doubling_count = 0;
+ for (int i = 1; i < CAMERA_FRAME_BURST_COUNT; ++i) {
+ if (fabs(brightnesses[i] - prev*CAMERA_EXPOSURE_DOUBLE)
+ <= CAMERA_EXPOSURE_DOUBLING_THRESHOLD) {
+ doubling_count++;
+ }
+ else {
+ max_doubling_count = std::max(max_doubling_count, doubling_count);
+ doubling_count = 1;
+ }
+ prev = brightnesses[i];
+ }
+
+ dout << "max doubling count: " << max_doubling_count << std::endl;
+
+ /**
+ * Make this check warning only, since the brightness calculation is not reliable
+ * and we have separate test to cover this case. Plus it is pretty subtle to make
+ * it right without complicating the test too much.
+ */
+ WARN_LE(CAMERA_EXPOSURE_DOUBLING_COUNT, max_doubling_count)
+ << "average brightness should double at least "
+ << CAMERA_EXPOSURE_DOUBLING_COUNT
+ << " times over each consecutive frame as the exposure is doubled"
+ << std::endl;
+}
+
+/**
+ * This test varies exposure time, frame duration, and sensitivity for a
+ * burst of captures. It picks values by default, but the selection can be
+ * overridden with the environment variables
+ * CAMERA2_TEST_VARIABLE_BURST_EXPOSURE_TIMES
+ * CAMERA2_TEST_VARIABLE_BURST_FRAME_DURATIONS
+ * CAMERA2_TEST_VARIABLE_BURST_SENSITIVITIES
+ * which must all be a list of comma-separated values, and each list must be
+ * the same length. In addition, if the environment variable
+ * CAMERA2_TEST_VARIABLE_BURST_DUMP_FRAMES
+ * is set to 1, then the YUV buffers are dumped into files named
+ * "camera2_test_variable_burst_frame_NNN.yuv"
+ *
+ * For example:
+ * $ setenv CAMERA2_TEST_VARIABLE_BURST_EXPOSURE_TIMES 10000000,20000000
+ * $ setenv CAMERA2_TEST_VARIABLE_BURST_FRAME_DURATIONS 40000000,40000000
+ * $ setenv CAMERA2_TEST_VARIABLE_BURST_SENSITIVITIES 200,100
+ * $ setenv CAMERA2_TEST_VARIABLE_BURST_DUMP_FRAMES 1
+ * $ /data/nativetest/camera2_test/camera2_test --gtest_filter="*VariableBurst"
+ */
+TEST_F(CameraBurstTest, VariableBurst) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ // Bounds for checking frame duration is within range
+ const nsecs_t DURATION_UPPER_BOUND = 10 * MSEC;
+ const nsecs_t DURATION_LOWER_BOUND = 20 * MSEC;
+
+ // Threshold for considering two captures to have equivalent exposure value,
+ // as a ratio of the smaller EV to the larger EV.
+ const float EV_MATCH_BOUND = 0.95;
+ // Bound for two captures with equivalent exp values to have the same
+ // measured brightness, in 0-255 luminance.
+ const float BRIGHTNESS_MATCH_BOUND = 5;
+
+ // Environment variables to look for to override test settings
+ const char *expEnv = "CAMERA2_TEST_VARIABLE_BURST_EXPOSURE_TIMES";
+ const char *durationEnv = "CAMERA2_TEST_VARIABLE_BURST_FRAME_DURATIONS";
+ const char *sensitivityEnv = "CAMERA2_TEST_VARIABLE_BURST_SENSITIVITIES";
+ const char *dumpFrameEnv = "CAMERA2_TEST_VARIABLE_BURST_DUMP_FRAMES";
+
+ // Range of valid exposure times, in nanoseconds
+ int64_t minExp = 0, maxExp = 0;
+ // List of valid sensor sensitivities
+ Vector<int32_t> sensitivities;
+ // Range of valid frame durations, in nanoseconds
+ int64_t minDuration = 0, maxDuration = 0;
+
+ {
+ camera_metadata_ro_entry exposureTimeRange =
+ GetStaticEntry(ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE);
+
+ EXPECT_EQ(2u, exposureTimeRange.count) << "Bad exposure time range tag."
+ "Using default values";
+ if (exposureTimeRange.count == 2) {
+ minExp = exposureTimeRange.data.i64[0];
+ maxExp = exposureTimeRange.data.i64[1];
+ }
+
+ EXPECT_LT(0, minExp) << "Minimum exposure time is 0";
+ EXPECT_LT(0, maxExp) << "Maximum exposure time is 0";
+ EXPECT_LE(minExp, maxExp) << "Minimum exposure is greater than maximum";
+
+ if (minExp == 0) {
+ minExp = 1 * MSEC; // Fallback minimum exposure time
+ }
+
+ if (maxExp == 0) {
+ maxExp = 10 * SEC; // Fallback maximum exposure time
+ }
+ }
+
+ camera_metadata_ro_entry hardwareLevel =
+ GetStaticEntry(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL);
+ ASSERT_EQ(1u, hardwareLevel.count);
+ uint8_t level = hardwareLevel.data.u8[0];
+ ASSERT_GE(level, ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED);
+ ASSERT_LE(level, ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL);
+ if (level == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED) {
+ const ::testing::TestInfo* const test_info =
+ ::testing::UnitTest::GetInstance()->current_test_info();
+ std::cerr << "Skipping test "
+ << test_info->test_case_name() << "."
+ << test_info->name()
+ << " because HAL hardware supported level is limited "
+ << std::endl;
+ return;
+ }
+
+ dout << "Stream size is " << mWidth << " x " << mHeight << std::endl;
+ dout << "Valid exposure range is: " <<
+ minExp << " - " << maxExp << " ns " << std::endl;
+
+ {
+ camera_metadata_ro_entry sensivityRange =
+ GetStaticEntry(ANDROID_SENSOR_INFO_SENSITIVITY_RANGE);
+ EXPECT_EQ(2u, sensivityRange.count) << "No sensitivity range listed."
+ "Falling back to default set.";
+ int32_t minSensitivity = 100;
+ int32_t maxSensitivity = 800;
+ if (sensivityRange.count == 2) {
+ ASSERT_GT(sensivityRange.data.i32[0], 0);
+ ASSERT_GT(sensivityRange.data.i32[1], 0);
+ minSensitivity = sensivityRange.data.i32[0];
+ maxSensitivity = sensivityRange.data.i32[1];
+ }
+ int32_t count = (maxSensitivity - minSensitivity + 99) / 100;
+ sensitivities.push_back(minSensitivity);
+ for (int i = 1; i < count; i++) {
+ sensitivities.push_back(minSensitivity + i * 100);
+ }
+ sensitivities.push_back(maxSensitivity);
+ }
+
+ dout << "Available sensitivities: ";
+ for (size_t i = 0; i < sensitivities.size(); i++) {
+ dout << sensitivities[i] << " ";
+ }
+ dout << std::endl;
+
+ {
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) {
+ camera_metadata_ro_entry availableProcessedSizes =
+ GetStaticEntry(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES);
+
+ camera_metadata_ro_entry availableProcessedMinFrameDurations =
+ GetStaticEntry(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS);
+
+ EXPECT_EQ(availableProcessedSizes.count,
+ availableProcessedMinFrameDurations.count * 2) <<
+ "The number of minimum frame durations doesn't match the number of "
+ "available sizes. Using fallback values";
+
+ if (availableProcessedSizes.count ==
+ availableProcessedMinFrameDurations.count * 2) {
+ bool gotSize = false;
+ for (size_t i = 0; i < availableProcessedSizes.count; i += 2) {
+ if (availableProcessedSizes.data.i32[i] == mWidth &&
+ availableProcessedSizes.data.i32[i+1] == mHeight) {
+ gotSize = true;
+ minDuration = availableProcessedMinFrameDurations.data.i64[i/2];
+ }
+ }
+ EXPECT_TRUE(gotSize) << "Can't find stream size in list of "
+ "available sizes: " << mWidth << ", " << mHeight;
+ }
+ if (minDuration == 0) {
+ minDuration = 1 * SEC / 30; // Fall back to 30 fps as minimum duration
+ }
+ } else {
+ minDuration = getMinFrameDurationFor(
+ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, mWidth, mHeight);
+ }
+ ASSERT_LT(0, minDuration);
+
+ camera_metadata_ro_entry maxFrameDuration =
+ GetStaticEntry(ANDROID_SENSOR_INFO_MAX_FRAME_DURATION);
+
+ EXPECT_EQ(1u, maxFrameDuration.count) << "No valid maximum frame duration";
+
+ if (maxFrameDuration.count == 1) {
+ maxDuration = maxFrameDuration.data.i64[0];
+ }
+
+ EXPECT_GT(maxDuration, 0) << "Max duration is 0 or not given, using fallback";
+
+ if (maxDuration == 0) {
+ maxDuration = 10 * SEC; // Fall back to 10 seconds as max duration
+ }
+
+ }
+ dout << "Available frame duration range for configured stream size: "
+ << minDuration << " - " << maxDuration << " ns" << std::endl;
+
+ // Get environment variables if set
+ const char *expVal = getenv(expEnv);
+ const char *durationVal = getenv(durationEnv);
+ const char *sensitivityVal = getenv(sensitivityEnv);
+
+ bool gotExp = (expVal != NULL);
+ bool gotDuration = (durationVal != NULL);
+ bool gotSensitivity = (sensitivityVal != NULL);
+
+ // All or none must be provided if using override envs
+ ASSERT_TRUE( (gotDuration && gotExp && gotSensitivity) ||
+ (!gotDuration && !gotExp && !gotSensitivity) ) <<
+ "Incomplete set of environment variable overrides provided";
+
+ Vector<int64_t> expList, durationList;
+ Vector<int32_t> sensitivityList;
+ if (gotExp) {
+ ParseList(expVal, expList);
+ ParseList(durationVal, durationList);
+ ParseList(sensitivityVal, sensitivityList);
+
+ ASSERT_TRUE(
+ (expList.size() == durationList.size()) &&
+ (durationList.size() == sensitivityList.size())) <<
+ "Mismatched sizes in env lists, or parse error";
+
+ dout << "Using burst list from environment with " << expList.size() <<
+ " captures" << std::endl;
+ } else {
+ // Create a default set of controls based on the available ranges
+
+ int64_t e;
+ int64_t d;
+ int32_t s;
+
+ // Exposure ramp
+
+ e = minExp;
+ d = minDuration;
+ s = sensitivities[0];
+ while (e < maxExp) {
+ expList.push_back(e);
+ durationList.push_back(d);
+ sensitivityList.push_back(s);
+ e = e * 2;
+ }
+ e = maxExp;
+ expList.push_back(e);
+ durationList.push_back(d);
+ sensitivityList.push_back(s);
+
+ // Duration ramp
+
+ e = 30 * MSEC;
+ d = minDuration;
+ s = sensitivities[0];
+ while (d < maxDuration) {
+ // make sure exposure <= frame duration
+ expList.push_back(e > d ? d : e);
+ durationList.push_back(d);
+ sensitivityList.push_back(s);
+ d = d * 2;
+ }
+
+ // Sensitivity ramp
+
+ e = 30 * MSEC;
+ d = 30 * MSEC;
+ d = d > minDuration ? d : minDuration;
+ for (size_t i = 0; i < sensitivities.size(); i++) {
+ expList.push_back(e);
+ durationList.push_back(d);
+ sensitivityList.push_back(sensitivities[i]);
+ }
+
+ // Constant-EV ramp, duration == exposure
+
+ e = 30 * MSEC; // at ISO 100
+ for (size_t i = 0; i < sensitivities.size(); i++) {
+ int64_t e_adj = e * 100 / sensitivities[i];
+ expList.push_back(e_adj);
+ durationList.push_back(e_adj > minDuration ? e_adj : minDuration);
+ sensitivityList.push_back(sensitivities[i]);
+ }
+
+ dout << "Default burst sequence created with " << expList.size() <<
+ " entries" << std::endl;
+ }
+
+ // Validate the list, but warn only
+ for (size_t i = 0; i < expList.size(); i++) {
+ EXPECT_GE(maxExp, expList[i])
+ << "Capture " << i << " exposure too long: " << expList[i];
+ EXPECT_LE(minExp, expList[i])
+ << "Capture " << i << " exposure too short: " << expList[i];
+ EXPECT_GE(maxDuration, durationList[i])
+ << "Capture " << i << " duration too long: " << durationList[i];
+ EXPECT_LE(minDuration, durationList[i])
+ << "Capture " << i << " duration too short: " << durationList[i];
+ bool validSensitivity = false;
+ for (size_t j = 0; j < sensitivities.size(); j++) {
+ if (sensitivityList[i] == sensitivities[j]) {
+ validSensitivity = true;
+ break;
+ }
+ }
+ EXPECT_TRUE(validSensitivity)
+ << "Capture " << i << " sensitivity not in list: " << sensitivityList[i];
+ }
+
+ // Check if debug yuv dumps are requested
+
+ bool dumpFrames = false;
+ {
+ const char *frameDumpVal = getenv(dumpFrameEnv);
+ if (frameDumpVal != NULL) {
+ if (frameDumpVal[0] == '1') dumpFrames = true;
+ }
+ }
+
+ dout << "Dumping YUV frames " <<
+ (dumpFrames ? "enabled, not checking timing" : "disabled") << std::endl;
+
+ // Create a base preview request, turning off all 3A
+ CameraMetadata previewRequest;
+ ASSERT_EQ(OK, mDevice->createDefaultRequest(CAMERA2_TEMPLATE_PREVIEW,
+ &previewRequest));
+ {
+ Vector<int32_t> outputStreamIds;
+ outputStreamIds.push(mStreamId);
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_OUTPUT_STREAMS,
+ outputStreamIds));
+
+ // Disable all 3A routines
+ uint8_t cmOff = static_cast<uint8_t>(ANDROID_CONTROL_MODE_OFF);
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_CONTROL_MODE,
+ &cmOff, 1));
+
+ int requestId = 1;
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_ID,
+ &requestId, 1));
+ }
+
+ // Submit capture requests
+
+ for (size_t i = 0; i < expList.size(); ++i) {
+ CameraMetadata tmpRequest = previewRequest;
+ ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_EXPOSURE_TIME,
+ &expList[i], 1));
+ ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_FRAME_DURATION,
+ &durationList[i], 1));
+ ASSERT_EQ(OK, tmpRequest.update(ANDROID_SENSOR_SENSITIVITY,
+ &sensitivityList[i], 1));
+ ALOGV("Submitting capture %zu with exposure %" PRId64 ", frame duration %" PRId64 ", sensitivity %d",
+ i, expList[i], durationList[i], sensitivityList[i]);
+ dout << "Capture request " << i <<
+ ": exposure is " << (expList[i]/1e6f) << " ms" <<
+ ", frame duration is " << (durationList[i]/1e6f) << " ms" <<
+ ", sensitivity is " << sensitivityList[i] <<
+ std::endl;
+ ASSERT_EQ(OK, mDevice->capture(tmpRequest));
+ }
+
+ Vector<float> brightnesses;
+ Vector<nsecs_t> captureTimes;
+ brightnesses.setCapacity(expList.size());
+ captureTimes.setCapacity(expList.size());
+
+ // Get each frame (metadata) and then the buffer. Calculate brightness.
+ for (size_t i = 0; i < expList.size(); ++i) {
+
+ ALOGV("Reading request %zu", i);
+ dout << "Waiting for capture " << i << ": " <<
+ " exposure " << (expList[i]/1e6f) << " ms," <<
+ " frame duration " << (durationList[i]/1e6f) << " ms," <<
+ " sensitivity " << sensitivityList[i] <<
+ std::endl;
+
+ // Set wait limit based on expected frame duration, or minimum timeout
+ int64_t waitLimit = CAMERA_FRAME_TIMEOUT;
+ if (expList[i] * 2 > waitLimit) waitLimit = expList[i] * 2;
+ if (durationList[i] * 2 > waitLimit) waitLimit = durationList[i] * 2;
+
+ ASSERT_EQ(OK, mDevice->waitForNextFrame(waitLimit));
+ ALOGV("Reading capture request-1 %zu", i);
+ CaptureResult result;
+ ASSERT_EQ(OK, mDevice->getNextResult(&result));
+ ALOGV("Reading capture request-2 %zu", i);
+
+ ASSERT_EQ(OK, mFrameListener->waitForFrame(CAMERA_FRAME_TIMEOUT));
+ ALOGV("We got the frame now");
+
+ captureTimes.push_back(systemTime());
+
+ CpuConsumer::LockedBuffer imgBuffer;
+ ASSERT_EQ(OK, mCpuConsumer->lockNextBuffer(&imgBuffer));
+
+ int underexposed, overexposed;
+ float avgBrightness = 0;
+ long long brightness = TotalBrightness(imgBuffer, &underexposed,
+ &overexposed);
+ int numValidPixels = mWidth * mHeight - (underexposed + overexposed);
+ if (numValidPixels != 0) {
+ avgBrightness = brightness * 1.0f / numValidPixels;
+ } else if (underexposed < overexposed) {
+ avgBrightness = 255;
+ }
+
+ ALOGV("Total brightness for frame %zu was %lld (underexposed %d, "
+ "overexposed %d), avg %f", i, brightness, underexposed,
+ overexposed, avgBrightness);
+ dout << "Average brightness (frame " << i << ") was " << avgBrightness
+ << " (underexposed " << underexposed << ", overexposed "
+ << overexposed << ")" << std::endl;
+ brightnesses.push_back(avgBrightness);
+
+ if (i != 0) {
+ float prevEv = static_cast<float>(expList[i - 1]) * sensitivityList[i - 1];
+ float currentEv = static_cast<float>(expList[i]) * sensitivityList[i];
+ float evRatio = (prevEv > currentEv) ? (currentEv / prevEv) :
+ (prevEv / currentEv);
+ if ( evRatio > EV_MATCH_BOUND ) {
+ WARN_LT(fabs(brightnesses[i] - brightnesses[i - 1]),
+ BRIGHTNESS_MATCH_BOUND) <<
+ "Capture brightness different from previous, even though "
+ "they have the same EV value. Ev now: " << currentEv <<
+ ", previous: " << prevEv << ". Brightness now: " <<
+ brightnesses[i] << ", previous: " << brightnesses[i-1] <<
+ std::endl;
+ }
+ // Only check timing if not saving to disk, since that slows things
+ // down substantially
+ if (!dumpFrames) {
+ nsecs_t timeDelta = captureTimes[i] - captureTimes[i-1];
+ nsecs_t expectedDelta = expList[i] > durationList[i] ?
+ expList[i] : durationList[i];
+ WARN_LT(timeDelta, expectedDelta + DURATION_UPPER_BOUND) <<
+ "Capture took " << timeDelta << " ns to receive, but expected"
+ " frame duration was " << expectedDelta << " ns." <<
+ std::endl;
+ WARN_GT(timeDelta, expectedDelta - DURATION_LOWER_BOUND) <<
+ "Capture took " << timeDelta << " ns to receive, but expected"
+ " frame duration was " << expectedDelta << " ns." <<
+ std::endl;
+ dout << "Time delta from previous frame: " << timeDelta / 1e6 <<
+ " ms. Expected " << expectedDelta / 1e6 << " ms" << std::endl;
+ }
+ }
+
+ if (dumpFrames) {
+ String8 dumpName =
+ String8::format("/data/local/tmp/camera2_test_variable_burst_frame_%03zu.yuv", i);
+ dout << " Writing YUV dump to " << dumpName << std::endl;
+ DumpYuvToFile(dumpName, imgBuffer);
+ }
+
+ ASSERT_EQ(OK, mCpuConsumer->unlockBuffer(imgBuffer));
+ }
+
+}
+
+}
+}
+}
diff --git a/libhardware/tests/camera2/CameraFrameTests.cpp b/libhardware/tests/camera2/CameraFrameTests.cpp
new file mode 100644
index 0000000..3c5abf7
--- /dev/null
+++ b/libhardware/tests/camera2/CameraFrameTests.cpp
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#define LOG_TAG "CameraFrameTest"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include "hardware/hardware.h"
+#include "hardware/camera2.h"
+
+#include <common/CameraDeviceBase.h>
+#include <utils/StrongPointer.h>
+#include <gui/CpuConsumer.h>
+#include <gui/Surface.h>
+
+#include <unistd.h>
+
+#include "CameraStreamFixture.h"
+#include "TestExtensions.h"
+
+#define CAMERA_FRAME_TIMEOUT 1000000000 //nsecs (1 secs)
+#define CAMERA_HEAP_COUNT 2 //HALBUG: 1 means registerBuffers fails
+#define CAMERA_FRAME_DEBUGGING 0
+
+using namespace android;
+using namespace android::camera2;
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+static CameraStreamParams STREAM_PARAMETERS = {
+ /*mFormat*/ CAMERA_STREAM_AUTO_CPU_FORMAT,
+ /*mHeapCount*/ CAMERA_HEAP_COUNT
+};
+
+class CameraFrameTest
+ : public ::testing::TestWithParam<int>,
+ public CameraStreamFixture {
+
+public:
+ CameraFrameTest() : CameraStreamFixture(STREAM_PARAMETERS) {
+ TEST_EXTENSION_FORKING_CONSTRUCTOR;
+
+ if (!HasFatalFailure()) {
+ CreateStream();
+ }
+ }
+
+ ~CameraFrameTest() {
+ TEST_EXTENSION_FORKING_DESTRUCTOR;
+
+ if (mDevice.get()) {
+ mDevice->waitUntilDrained();
+ }
+ }
+
+ virtual void SetUp() {
+ TEST_EXTENSION_FORKING_SET_UP;
+ }
+ virtual void TearDown() {
+ TEST_EXTENSION_FORKING_TEAR_DOWN;
+ }
+
+protected:
+
+};
+
+TEST_P(CameraFrameTest, GetFrame) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ /* Submit a PREVIEW type request, then wait until we get the frame back */
+ CameraMetadata previewRequest;
+ ASSERT_EQ(OK, mDevice->createDefaultRequest(CAMERA2_TEMPLATE_PREVIEW,
+ &previewRequest));
+ {
+ Vector<int32_t> outputStreamIds;
+ outputStreamIds.push(mStreamId);
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_OUTPUT_STREAMS,
+ outputStreamIds));
+ if (CAMERA_FRAME_DEBUGGING) {
+ int frameCount = 0;
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_FRAME_COUNT,
+ &frameCount, 1));
+ }
+ }
+
+ if (CAMERA_FRAME_DEBUGGING) {
+ previewRequest.dump(STDOUT_FILENO);
+ }
+
+ for (int i = 0; i < GetParam(); ++i) {
+ ALOGV("Submitting capture request %d", i);
+ CameraMetadata tmpRequest = previewRequest;
+ ASSERT_EQ(OK, mDevice->capture(tmpRequest));
+ }
+
+ for (int i = 0; i < GetParam(); ++i) {
+ ALOGV("Reading capture request %d", i);
+ ASSERT_EQ(OK, mDevice->waitForNextFrame(CAMERA_FRAME_TIMEOUT));
+
+ CaptureResult result;
+ ASSERT_EQ(OK, mDevice->getNextResult(&result));
+
+ // wait for buffer to be available
+ ASSERT_EQ(OK, mFrameListener->waitForFrame(CAMERA_FRAME_TIMEOUT));
+ ALOGV("We got the frame now");
+
+ // mark buffer consumed so producer can re-dequeue it
+ CpuConsumer::LockedBuffer imgBuffer;
+ ASSERT_EQ(OK, mCpuConsumer->lockNextBuffer(&imgBuffer));
+ ASSERT_EQ(OK, mCpuConsumer->unlockBuffer(imgBuffer));
+ }
+
+}
+
+//FIXME: dont hardcode stream params, and also test multistream
+INSTANTIATE_TEST_CASE_P(FrameParameterCombinations, CameraFrameTest,
+ testing::Range(1, 10));
+
+
+}
+}
+}
diff --git a/libhardware/tests/camera2/CameraMetadataTests.cpp b/libhardware/tests/camera2/CameraMetadataTests.cpp
new file mode 100644
index 0000000..da5b748
--- /dev/null
+++ b/libhardware/tests/camera2/CameraMetadataTests.cpp
@@ -0,0 +1,197 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "CameraMetadataTestFunctional"
+#include "cutils/log.h"
+#include "cutils/properties.h"
+#include "utils/Errors.h"
+
+#include "gtest/gtest.h"
+#include "system/camera_metadata.h"
+#include "hardware/hardware.h"
+#include "hardware/camera2.h"
+
+#include "common/CameraDeviceBase.h"
+#include "utils/StrongPointer.h"
+
+#include <gui/CpuConsumer.h>
+#include <gui/Surface.h>
+
+#include <string>
+
+#include "CameraStreamFixture.h"
+#include "TestExtensions.h"
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+//FIXME: dont hardcode
+static CameraStreamParams METADATA_STREAM_PARAMETERS = {
+ /*mFormat*/ HAL_PIXEL_FORMAT_YCrCb_420_SP,
+ /*mHeapCount*/ 2
+};
+
+class CameraMetadataTest
+ : public ::testing::Test,
+ public CameraStreamFixture {
+
+public:
+ CameraMetadataTest()
+ : CameraStreamFixture(METADATA_STREAM_PARAMETERS) {
+ TEST_EXTENSION_FORKING_CONSTRUCTOR;
+ }
+
+ ~CameraMetadataTest() {
+ TEST_EXTENSION_FORKING_DESTRUCTOR;
+ }
+
+ int GetTypeFromTag(uint32_t tag) const {
+ return get_camera_metadata_tag_type(tag);
+ }
+
+ int GetTypeFromStaticTag(uint32_t tag) const {
+ const CameraMetadata& staticInfo = mDevice->info();
+ camera_metadata_ro_entry entry = staticInfo.find(tag);
+ return entry.type;
+ }
+
+ int GetEntryCountFromStaticTag(uint32_t tag) const {
+ const CameraMetadata& staticInfo = mDevice->info();
+ camera_metadata_ro_entry entry = staticInfo.find(tag);
+ return entry.count;
+ }
+
+ bool HasElementInArrayFromStaticTag(uint32_t tag, int32_t element) const {
+ const CameraMetadata& staticInfo = mDevice->info();
+ camera_metadata_ro_entry entry = staticInfo.find(tag);
+ for (size_t i = 0; i < entry.count; ++i) {
+ if (entry.data.i32[i] == element)
+ return true;
+ }
+ return false;
+ }
+
+protected:
+
+};
+
+TEST_F(CameraMetadataTest, types) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ //FIXME: set this up in an external file of some sort (xml?)
+ {
+ char value[PROPERTY_VALUE_MAX];
+ property_get("ro.build.id", value, "");
+ std::string str_value(value);
+
+ if (str_value == "manta")
+ {
+ EXPECT_EQ(TYPE_BYTE,
+ GetTypeFromStaticTag(ANDROID_QUIRKS_TRIGGER_AF_WITH_AUTO));
+ EXPECT_EQ(TYPE_BYTE,
+ GetTypeFromStaticTag(ANDROID_QUIRKS_USE_ZSL_FORMAT));
+ EXPECT_EQ(TYPE_BYTE,
+ GetTypeFromStaticTag(ANDROID_QUIRKS_METERING_CROP_REGION));
+ }
+ }
+
+ /*
+ TODO:
+ go through all static metadata and make sure all fields we expect
+ that are there, ARE there.
+
+ dont worry about the type as its enforced by the metadata api
+ we can probably check the range validity though
+ */
+
+ if (0) {
+ camera_metadata_ro_entry entry;
+ EXPECT_EQ(TYPE_BYTE, entry.type);
+ EXPECT_EQ(TYPE_INT32, entry.type);
+ EXPECT_EQ(TYPE_FLOAT, entry.type);
+ EXPECT_EQ(TYPE_INT64, entry.type);
+ EXPECT_EQ(TYPE_DOUBLE, entry.type);
+ EXPECT_EQ(TYPE_RATIONAL, entry.type);
+ }
+}
+
+TEST_F(CameraMetadataTest, RequiredFormats) {
+ TEST_EXTENSION_FORKING_INIT;
+
+ EXPECT_TRUE(
+ HasElementInArrayFromStaticTag(ANDROID_SCALER_AVAILABLE_FORMATS,
+ HAL_PIXEL_FORMAT_BLOB)); // JPEG
+
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_0) {
+ // HAL2 can support either flexible YUV or YV12 + NV21
+ if (!HasElementInArrayFromStaticTag(ANDROID_SCALER_AVAILABLE_FORMATS,
+ HAL_PIXEL_FORMAT_YCbCr_420_888)) {
+
+ EXPECT_TRUE(
+ HasElementInArrayFromStaticTag(ANDROID_SCALER_AVAILABLE_FORMATS,
+ HAL_PIXEL_FORMAT_YCrCb_420_SP)); // NV21
+
+ EXPECT_TRUE(
+ HasElementInArrayFromStaticTag(ANDROID_SCALER_AVAILABLE_FORMATS,
+ HAL_PIXEL_FORMAT_YV12));
+ }
+ } else {
+ // HAL3 must support flexible YUV
+ EXPECT_TRUE(HasElementInArrayFromStaticTag(ANDROID_SCALER_AVAILABLE_FORMATS,
+ HAL_PIXEL_FORMAT_YCbCr_420_888));
+ }
+
+}
+
+TEST_F(CameraMetadataTest, SaneResolutions) {
+ TEST_EXTENSION_FORKING_INIT;
+
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) {
+ // Iff there are listed raw resolutions, the format should be available
+ int rawResolutionsCount =
+ GetEntryCountFromStaticTag(ANDROID_SCALER_AVAILABLE_RAW_SIZES);
+ if (rawResolutionsCount > 0) {
+ EXPECT_TRUE(
+ HasElementInArrayFromStaticTag(ANDROID_SCALER_AVAILABLE_FORMATS,
+ HAL_PIXEL_FORMAT_RAW16));
+ }
+
+ // Required processed sizes.
+ int processedSizeCount =
+ GetEntryCountFromStaticTag(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES);
+ EXPECT_NE(0, processedSizeCount);
+ EXPECT_EQ(0, processedSizeCount % 2); // multiple of 2 (w,h)
+
+ // Required JPEG sizes
+ int jpegSizeCount =
+ GetEntryCountFromStaticTag(ANDROID_SCALER_AVAILABLE_JPEG_SIZES);
+ EXPECT_NE(0, jpegSizeCount);
+ EXPECT_EQ(0, jpegSizeCount % 2); // multiple of 2 (w,h)
+ } else {
+ int strmConfigCount =
+ GetEntryCountFromStaticTag(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS);
+ EXPECT_NE(0, strmConfigCount);
+ EXPECT_EQ(0, strmConfigCount % 4); // multiple of 4 (format,w,h,output?)
+ }
+
+}
+
+}
+}
+}
diff --git a/libhardware/tests/camera2/CameraModuleFixture.h b/libhardware/tests/camera2/CameraModuleFixture.h
new file mode 100644
index 0000000..102fa6d
--- /dev/null
+++ b/libhardware/tests/camera2/CameraModuleFixture.h
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_CAMERA2_TESTS_MODULE_FIXTURE__
+#define __ANDROID_HAL_CAMERA2_TESTS_MODULE_FIXTURE__
+
+#include <gtest/gtest.h>
+
+#include "hardware/hardware.h"
+#include "hardware/camera2.h"
+
+#include <common/CameraModule.h>
+#include <device2/Camera2Device.h>
+#include <device3/Camera3Device.h>
+
+#include "camera2_utils.h"
+#include "TestExtensions.h"
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+template <bool InfoQuirk = false>
+struct CameraModuleFixture {
+
+ explicit CameraModuleFixture(int CameraID = -1) {
+ TEST_EXTENSION_FORKING_CONSTRUCTOR;
+
+ mCameraID = CameraID;
+ }
+
+ ~CameraModuleFixture() {
+ TEST_EXTENSION_FORKING_DESTRUCTOR;
+ }
+
+ camera_metadata_ro_entry GetStaticEntry(uint32_t tag) const {
+ const CameraMetadata& staticInfo = mDevice->info();
+ camera_metadata_ro_entry entry = staticInfo.find(tag);
+ return entry;
+ }
+
+ void SetUp() {
+ TEST_EXTENSION_FORKING_SET_UP;
+
+ camera_module_t *rawModule;
+ ASSERT_LE(0, hw_get_module(CAMERA_HARDWARE_MODULE_ID,
+ (const hw_module_t **)&rawModule)) << "Could not load camera module";
+ ASSERT_NE((void*)0, rawModule);
+ mModule = new CameraModule(rawModule);
+
+ mNumberOfCameras = mModule->getNumberOfCameras();
+ ASSERT_LE(0, mNumberOfCameras);
+
+ ASSERT_LE(
+ CAMERA_MODULE_API_VERSION_2_0, mModule->getModuleApiVersion())
+ << "Wrong module API version";
+
+ /* For using this fixture in other tests only */
+ SetUpMixin();
+ }
+
+ void TearDown() {
+ TEST_EXTENSION_FORKING_TEAR_DOWN;
+
+ delete mModule;
+ TearDownMixin();
+
+ /* important: device must be destructed before closing module,
+ since it calls back into HAL */
+ mDevice.clear();
+
+ if (!TEST_EXTENSION_FORKING_ENABLED) {
+ ASSERT_EQ(0, HWModuleHelpers::closeModule(mModule->getDso()))
+ << "Failed to close camera HAL module";
+ }
+ }
+
+ void CreateCamera(int cameraID, /*out*/ sp<CameraDeviceBase> *device) {
+ struct camera_info info;
+ ASSERT_EQ(OK, mModule->getCameraInfo(cameraID, &info));
+
+ ASSERT_GE((int)info.device_version, CAMERA_DEVICE_API_VERSION_2_0) <<
+ "Device version too old for camera " << cameraID << ". Version: " <<
+ info.device_version;
+ switch(info.device_version) {
+ case CAMERA_DEVICE_API_VERSION_2_0:
+ case CAMERA_DEVICE_API_VERSION_2_1:
+ *device = new Camera2Device(cameraID);
+ break;
+ case CAMERA_DEVICE_API_VERSION_3_0:
+ case CAMERA_DEVICE_API_VERSION_3_1:
+ case CAMERA_DEVICE_API_VERSION_3_2:
+ *device = new Camera3Device(cameraID);
+ break;
+ default:
+ device->clear();
+ FAIL() << "Device version unknown for camera " << cameraID << ". Version: " <<
+ info.device_version;
+ }
+
+ }
+
+ int getDeviceVersion() {
+ return getDeviceVersion(mCameraID);
+ }
+
+ int getDeviceVersion(int cameraId, status_t* status = NULL) {
+ camera_info info;
+ status_t res;
+ res = mModule->getCameraInfo(cameraId, &info);
+ if (status != NULL) *status = res;
+
+ return info.device_version;
+ }
+
+private:
+
+ void SetUpMixin() {
+ /* For using this fixture in other tests only */
+ if (mCameraID != -1) {
+ EXPECT_LE(0, mCameraID);
+ EXPECT_LT(mCameraID, mNumberOfCameras);
+
+ /* HALBUG (Exynos5); crashes if we skip calling get_camera_info
+ before initializing. Need info anyway now. */
+
+ CreateCamera(mCameraID, &mDevice);
+
+ ASSERT_TRUE(mDevice != NULL) << "Failed to open device " << mCameraID;
+ ASSERT_EQ(OK, mDevice->initialize(mModule))
+ << "Failed to initialize device " << mCameraID;
+ }
+ }
+
+ void TearDownMixin() {
+
+ }
+
+protected:
+ int mNumberOfCameras;
+ CameraModule *mModule;
+ sp<CameraDeviceBase> mDevice;
+
+private:
+ int mCameraID;
+};
+
+
+}
+}
+}
+
+#endif
diff --git a/libhardware/tests/camera2/CameraModuleTests.cpp b/libhardware/tests/camera2/CameraModuleTests.cpp
new file mode 100644
index 0000000..2b6c757
--- /dev/null
+++ b/libhardware/tests/camera2/CameraModuleTests.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#define LOG_TAG "CameraModuleTest"
+#define LOG_NDEBUG 0
+#include <utils/Log.h>
+#include <utils/StrongPointer.h>
+#include <common/CameraDeviceBase.h>
+
+#include "hardware/hardware.h"
+#include "hardware/camera2.h"
+
+#include "CameraModuleFixture.h"
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+class CameraModuleTest : public ::testing::Test,
+ public CameraModuleFixture<> {
+
+public:
+ CameraModuleTest() {
+ CameraModuleFixture::SetUp();
+ }
+
+ ~CameraModuleTest() {
+ CameraModuleFixture::TearDown();
+ }
+
+ status_t initializeDevice(int cameraId) {
+
+ // ignore HAL1s. count as test pass
+ status_t stat;
+ if (isDeviceVersionHal2(cameraId, &stat) && stat == OK) {
+ stat = mDevice->initialize(mModule);
+ }
+
+ return stat;
+ }
+
+ bool isDeviceVersionHal2(int cameraId, status_t* status) {
+ return getDeviceVersion(cameraId, status)
+ >= CAMERA_DEVICE_API_VERSION_2_0;
+ }
+};
+
+TEST_F(CameraModuleTest, LoadModule) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ status_t stat;
+ for (int i = 0; i < mNumberOfCameras; ++i) {
+ if (isDeviceVersionHal2(i, &stat) && stat == OK) {
+ CreateCamera(i, &mDevice);
+ ASSERT_EQ(OK, initializeDevice(i))
+ << "Failed to initialize device " << i;
+ mDevice.clear();
+ } else {
+ const ::testing::TestInfo* const test_info =
+ ::testing::UnitTest::GetInstance()->current_test_info();
+ std::cerr << "Skipping test "
+ << test_info->test_case_name() << "."
+ << test_info->name()
+ << " because HAL device version is V1"
+ << std::endl;
+ }
+ }
+
+}
+
+TEST_F(CameraModuleTest, LoadModuleBadIndices) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ int idx[] = { -1, mNumberOfCameras, mNumberOfCameras + 1 };
+ hw_device_t *device = NULL;
+
+ for (unsigned i = 0; i < sizeof(idx)/sizeof(idx[0]); ++i) {
+ String8 deviceName = String8::format("%d", idx[i]);
+ status_t res = mModule->open(deviceName, &device);
+ EXPECT_NE(OK, res);
+ EXPECT_EQ(-ENODEV, res)
+ << "Incorrect error code when trying to open camera with invalid id "
+ << deviceName;
+ }
+}
+
+TEST_F(CameraModuleTest, GetCameraInfo) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ for (int i = 0; i < mNumberOfCameras; ++i) {
+ struct camera_info info;
+ ASSERT_EQ(OK, mModule->getCameraInfo(i, &info));
+ }
+
+}
+
+TEST_F(CameraModuleTest, GetCameraInfoBadIndices) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ int idx[] = { -1, mNumberOfCameras, mNumberOfCameras + 1 };
+ for (unsigned i = 0; i < sizeof(idx)/sizeof(idx[0]); ++i) {
+ struct camera_info info;
+ EXPECT_NE(OK, mModule->getCameraInfo(idx[i], &info));
+ EXPECT_EQ(-EINVAL, mModule->getCameraInfo(idx[i], &info))
+ << "Incorrect error code for get_camera_info idx= "
+ << idx[i];
+ }
+}
+
+/**
+ * TODO: Additional test to add: open two cameras at once.
+ * (is allowed to fail, at least for now, but should not blow up)
+ * - open same device multiple times
+ * - close same device multiple times
+ */
+
+
+
+
+}
+}
+}
diff --git a/libhardware/tests/camera2/CameraMultiStreamTests.cpp b/libhardware/tests/camera2/CameraMultiStreamTests.cpp
new file mode 100644
index 0000000..f4aeab7
--- /dev/null
+++ b/libhardware/tests/camera2/CameraMultiStreamTests.cpp
@@ -0,0 +1,713 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <inttypes.h>
+#define LOG_TAG "CameraMultiStreamTest"
+//#define LOG_NDEBUG 0
+#include "CameraStreamFixture.h"
+#include "TestExtensions.h"
+
+#include <gtest/gtest.h>
+#include <utils/Log.h>
+#include <utils/StrongPointer.h>
+#include <common/CameraDeviceBase.h>
+#include <hardware/hardware.h>
+#include <hardware/camera2.h>
+#include <gui/SurfaceComposerClient.h>
+#include <gui/Surface.h>
+
+#define DEFAULT_FRAME_DURATION 33000000LL // 33ms
+#define CAMERA_HEAP_COUNT 1
+#define CAMERA_EXPOSURE_FORMAT CAMERA_STREAM_AUTO_CPU_FORMAT
+#define CAMERA_DISPLAY_FORMAT HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED
+#define CAMERA_MULTI_STREAM_DEBUGGING 0
+#define CAMERA_FRAME_TIMEOUT 1000000000LL // nsecs (1 secs)
+#define PREVIEW_RENDERING_TIME_INTERVAL 200000 // in unit of us, 200ms
+// 1% tolerance margin for exposure sanity check against metadata
+#define TOLERANCE_MARGIN_METADATA 0.01
+// 5% tolerance margin for exposure sanity check against capture times
+#define TOLERANCE_MARGIN_CAPTURE 0.05
+/* constants for display */
+#define DISPLAY_BUFFER_HEIGHT 1024
+#define DISPLAY_BUFFER_WIDTH 1024
+#define DISPLAY_BUFFER_FORMAT PIXEL_FORMAT_RGB_888
+
+// This test intends to test large preview size but less than 1080p.
+#define PREVIEW_WIDTH_CAP 1920
+#define PREVIEW_HEIGHT_CAP 1080
+// This test intends to test small metering burst size that is less than 640x480
+#define METERING_WIDTH_CAP 640
+#define METERING_HEIGHT_CAP 480
+
+#define EXP_WAIT_MULTIPLIER 2
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+static const CameraStreamParams DEFAULT_STREAM_PARAMETERS = {
+ /*mFormat*/ CAMERA_EXPOSURE_FORMAT,
+ /*mHeapCount*/ CAMERA_HEAP_COUNT
+};
+
+static const CameraStreamParams DISPLAY_STREAM_PARAMETERS = {
+ /*mFormat*/ CAMERA_DISPLAY_FORMAT,
+ /*mHeapCount*/ CAMERA_HEAP_COUNT
+};
+
+class CameraMultiStreamTest
+ : public ::testing::Test,
+ public CameraStreamFixture {
+
+public:
+ CameraMultiStreamTest() : CameraStreamFixture(DEFAULT_STREAM_PARAMETERS) {
+ TEST_EXTENSION_FORKING_CONSTRUCTOR;
+
+ if (HasFatalFailure()) {
+ return;
+ }
+ /**
+ * Don't create default stream, each test is in charge of creating
+ * its own streams.
+ */
+ }
+
+ ~CameraMultiStreamTest() {
+ TEST_EXTENSION_FORKING_DESTRUCTOR;
+ }
+
+ sp<SurfaceComposerClient> mComposerClient;
+ sp<SurfaceControl> mSurfaceControl;
+
+ void CreateOnScreenSurface(sp<Surface>& surface) {
+ mComposerClient = new SurfaceComposerClient;
+ ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
+
+ mSurfaceControl = mComposerClient->createSurface(
+ String8("CameraMultiStreamTest StreamingImage Surface"),
+ DISPLAY_BUFFER_HEIGHT, DISPLAY_BUFFER_WIDTH,
+ DISPLAY_BUFFER_FORMAT, 0);
+
+ ASSERT_NE((void*)NULL, mSurfaceControl.get());
+ ASSERT_TRUE(mSurfaceControl->isValid());
+
+ SurfaceComposerClient::openGlobalTransaction();
+ ASSERT_EQ(NO_ERROR, mSurfaceControl->setLayer(0x7FFFFFFF));
+ ASSERT_EQ(NO_ERROR, mSurfaceControl->show());
+ SurfaceComposerClient::closeGlobalTransaction();
+
+ surface = mSurfaceControl->getSurface();
+
+ ASSERT_NE((void*)NULL, surface.get());
+ }
+
+ struct Size {
+ int32_t width;
+ int32_t height;
+ };
+
+ // Select minimal size by number of pixels.
+ void GetMinSize(const int32_t* data, size_t count,
+ Size* min, int32_t* idx) {
+ ASSERT_NE((int32_t*)NULL, data);
+ int32_t minIdx = 0;
+ int32_t minSize = INT_MAX, tempSize;
+ for (size_t i = 0; i < count; i+=2) {
+ tempSize = data[i] * data[i+1];
+ if (minSize > tempSize) {
+ minSize = tempSize;
+ minIdx = i;
+ }
+ }
+ min->width = data[minIdx];
+ min->height = data[minIdx + 1];
+ *idx = minIdx;
+ }
+
+ // Select maximal size by number of pixels.
+ void GetMaxSize(const int32_t* data, size_t count,
+ Size* max, int32_t* idx) {
+ ASSERT_NE((int32_t*)NULL, data);
+ int32_t maxIdx = 0;
+ int32_t maxSize = INT_MIN, tempSize;
+ for (size_t i = 0; i < count; i+=2) {
+ tempSize = data[i] * data[i+1];
+ if (maxSize < tempSize) {
+ maxSize = tempSize;
+ maxIdx = i;
+ }
+ }
+ max->width = data[maxIdx];
+ max->height = data[maxIdx + 1];
+ *idx = maxIdx;
+ }
+
+ // Cap size by number of pixels.
+ Size CapSize(Size cap, Size input) {
+ if (input.width * input.height > cap.width * cap.height) {
+ return cap;
+ }
+ return input;
+ }
+
+ struct CameraStream : public RefBase {
+
+ public:
+ /**
+ * Only initialize the variables here, do the ASSERT check in
+ * SetUp function. To make this stream useful, the SetUp must
+ * be called before using it.
+ */
+ CameraStream(
+ int width,
+ int height,
+ const sp<CameraDeviceBase>& device,
+ CameraStreamParams param, sp<Surface> surface,
+ bool useCpuConsumer)
+ : mDevice(device),
+ mWidth(width),
+ mHeight(height) {
+ mFormat = param.mFormat;
+ if (useCpuConsumer) {
+ sp<IGraphicBufferProducer> producer;
+ sp<IGraphicBufferConsumer> consumer;
+ BufferQueue::createBufferQueue(&producer, &consumer);
+ mCpuConsumer = new CpuConsumer(consumer, param.mHeapCount);
+ mCpuConsumer->setName(String8(
+ "CameraMultiStreamTest::mCpuConsumer"));
+ mSurface = new Surface(producer);
+ } else {
+ // Render the stream to screen.
+ mCpuConsumer = NULL;
+ mSurface = surface;
+ }
+
+ mFrameListener = new FrameListener();
+ if (mCpuConsumer != 0) {
+ mCpuConsumer->setFrameAvailableListener(mFrameListener);
+ }
+ }
+
+ /**
+ * Finally create camera stream, and do the ASSERT check, since we
+ * can not do it in ctor.
+ */
+ void SetUp() {
+ ASSERT_EQ(OK,
+ mDevice->createStream(mSurface,
+ mWidth, mHeight, mFormat, HAL_DATASPACE_UNKNOWN,
+ CAMERA3_STREAM_ROTATION_0, &mStreamId));
+
+ ASSERT_NE(-1, mStreamId);
+ }
+
+ int GetStreamId() { return mStreamId; }
+ sp<CpuConsumer> GetConsumer() { return mCpuConsumer; }
+ sp<FrameListener> GetFrameListener() { return mFrameListener; }
+
+ protected:
+ ~CameraStream() {
+ if (mDevice.get()) {
+ mDevice->waitUntilDrained();
+ mDevice->deleteStream(mStreamId);
+ }
+ // Clear producer before consumer.
+ mSurface.clear();
+ mCpuConsumer.clear();
+ }
+
+ private:
+ sp<FrameListener> mFrameListener;
+ sp<CpuConsumer> mCpuConsumer;
+ sp<Surface> mSurface;
+ sp<CameraDeviceBase> mDevice;
+ int mStreamId;
+ int mWidth;
+ int mHeight;
+ int mFormat;
+ };
+
+ int64_t GetExposureValue(const CameraMetadata& metaData) {
+ camera_metadata_ro_entry_t entry =
+ metaData.find(ANDROID_SENSOR_EXPOSURE_TIME);
+ EXPECT_EQ(1u, entry.count);
+ if (entry.count == 1) {
+ return entry.data.i64[0];
+ }
+ return -1;
+ }
+
+ int32_t GetSensitivity(const CameraMetadata& metaData) {
+ camera_metadata_ro_entry_t entry =
+ metaData.find(ANDROID_SENSOR_SENSITIVITY);
+ EXPECT_EQ(1u, entry.count);
+ if (entry.count == 1) {
+ return entry.data.i32[0];
+ }
+ return -1;
+ }
+
+ int64_t GetFrameDuration(const CameraMetadata& metaData) {
+ camera_metadata_ro_entry_t entry =
+ metaData.find(ANDROID_SENSOR_FRAME_DURATION);
+ EXPECT_EQ(1u, entry.count);
+ if (entry.count == 1) {
+ return entry.data.i64[0];
+ }
+ return -1;
+ }
+
+ void CreateRequests(CameraMetadata& previewRequest,
+ CameraMetadata& meteringRequest,
+ CameraMetadata& captureRequest,
+ int previewStreamId,
+ int meteringStreamId,
+ int captureStreamId) {
+ int32_t requestId = 0;
+ Vector<int32_t> previewStreamIds;
+ previewStreamIds.push(previewStreamId);
+ ASSERT_EQ(OK, mDevice->createDefaultRequest(CAMERA2_TEMPLATE_PREVIEW,
+ &previewRequest));
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_OUTPUT_STREAMS,
+ previewStreamIds));
+ ASSERT_EQ(OK, previewRequest.update(ANDROID_REQUEST_ID,
+ &requestId, 1));
+
+ // Create metering request, manual settings
+ // Manual control: Disable 3A, noise reduction, edge sharping
+ uint8_t cmOff = static_cast<uint8_t>(ANDROID_CONTROL_MODE_OFF);
+ uint8_t nrOff = static_cast<uint8_t>(ANDROID_NOISE_REDUCTION_MODE_OFF);
+ uint8_t sharpOff = static_cast<uint8_t>(ANDROID_EDGE_MODE_OFF);
+ Vector<int32_t> meteringStreamIds;
+ meteringStreamIds.push(meteringStreamId);
+ ASSERT_EQ(OK, mDevice->createDefaultRequest(
+ CAMERA2_TEMPLATE_PREVIEW,
+ &meteringRequest));
+ ASSERT_EQ(OK, meteringRequest.update(
+ ANDROID_REQUEST_OUTPUT_STREAMS,
+ meteringStreamIds));
+ ASSERT_EQ(OK, meteringRequest.update(
+ ANDROID_CONTROL_MODE,
+ &cmOff, 1));
+ ASSERT_EQ(OK, meteringRequest.update(
+ ANDROID_NOISE_REDUCTION_MODE,
+ &nrOff, 1));
+ ASSERT_EQ(OK, meteringRequest.update(
+ ANDROID_EDGE_MODE,
+ &sharpOff, 1));
+
+ // Create capture request, manual settings
+ Vector<int32_t> captureStreamIds;
+ captureStreamIds.push(captureStreamId);
+ ASSERT_EQ(OK, mDevice->createDefaultRequest(
+ CAMERA2_TEMPLATE_PREVIEW,
+ &captureRequest));
+ ASSERT_EQ(OK, captureRequest.update(
+ ANDROID_REQUEST_OUTPUT_STREAMS,
+ captureStreamIds));
+ ASSERT_EQ(OK, captureRequest.update(
+ ANDROID_CONTROL_MODE,
+ &cmOff, 1));
+ ASSERT_EQ(OK, captureRequest.update(
+ ANDROID_NOISE_REDUCTION_MODE,
+ &nrOff, 1));
+ ASSERT_EQ(OK, captureRequest.update(
+ ANDROID_EDGE_MODE,
+ &sharpOff, 1));
+ }
+
+ sp<CameraStream> CreateStream(
+ int width,
+ int height,
+ const sp<CameraDeviceBase>& device,
+ CameraStreamParams param = DEFAULT_STREAM_PARAMETERS,
+ const sp<Surface>& surface = NULL,
+ bool useCpuConsumer = true) {
+ param.mFormat = MapAutoFormat(param.mFormat);
+ return new CameraStream(width, height, device,
+ param, surface, useCpuConsumer);
+ }
+
+ void CaptureBurst(CameraMetadata& request, size_t requestCount,
+ const Vector<int64_t>& exposures,
+ const Vector<int32_t>& sensitivities,
+ const sp<CameraStream>& stream,
+ int64_t minFrameDuration,
+ int32_t* requestIdStart) {
+ ASSERT_EQ(OK, request.update(ANDROID_SENSOR_FRAME_DURATION,
+ &minFrameDuration, 1));
+ // Submit a series of requests with the specified exposure/gain values.
+ int32_t targetRequestId = *requestIdStart;
+ for (size_t i = 0; i < requestCount; i++) {
+ ASSERT_EQ(OK, request.update(ANDROID_REQUEST_ID, requestIdStart, 1));
+ ASSERT_EQ(OK, request.update(ANDROID_SENSOR_EXPOSURE_TIME, &exposures[i], 1));
+ ASSERT_EQ(OK, request.update(ANDROID_SENSOR_SENSITIVITY, &sensitivities[i], 1));
+ ASSERT_EQ(OK, mDevice->capture(request));
+ ALOGV("Submitting request with: id %d with exposure %" PRId64 ", sensitivity %d",
+ *requestIdStart, exposures[i], sensitivities[i]);
+ if (CAMERA_MULTI_STREAM_DEBUGGING) {
+ request.dump(STDOUT_FILENO);
+ }
+ (*requestIdStart)++;
+ }
+ // Get capture burst results.
+ Vector<nsecs_t> captureBurstTimes;
+ sp<CpuConsumer> consumer = stream->GetConsumer();
+ sp<FrameListener> listener = stream->GetFrameListener();
+
+ // Set wait limit based on expected frame duration.
+ int64_t waitLimit = CAMERA_FRAME_TIMEOUT;
+ for (size_t i = 0; i < requestCount; i++) {
+ ALOGV("Reading request result %zu", i);
+
+ /**
+ * Raise the timeout to be at least twice as long as the exposure
+ * time. to avoid a false positive when the timeout is too short.
+ */
+ if ((exposures[i] * EXP_WAIT_MULTIPLIER) > waitLimit) {
+ waitLimit = exposures[i] * EXP_WAIT_MULTIPLIER;
+ }
+
+ CaptureResult result;
+ CameraMetadata frameMetadata;
+ int32_t resultRequestId;
+ do {
+ ASSERT_EQ(OK, mDevice->waitForNextFrame(waitLimit));
+ ASSERT_EQ(OK, mDevice->getNextResult(&result));
+ frameMetadata = result.mMetadata;
+
+ camera_metadata_entry_t resultEntry = frameMetadata.find(ANDROID_REQUEST_ID);
+ ASSERT_EQ(1u, resultEntry.count);
+ resultRequestId = resultEntry.data.i32[0];
+ if (CAMERA_MULTI_STREAM_DEBUGGING) {
+ std::cout << "capture result req id: " << resultRequestId << std::endl;
+ }
+ } while (resultRequestId != targetRequestId);
+ targetRequestId++;
+ ALOGV("Got capture burst result for request %zu", i);
+
+ // Validate capture result
+ if (CAMERA_MULTI_STREAM_DEBUGGING) {
+ frameMetadata.dump(STDOUT_FILENO);
+ }
+
+ // TODO: Need revisit it to figure out an accurate margin.
+ int64_t resultExposure = GetExposureValue(frameMetadata);
+ int32_t resultSensitivity = GetSensitivity(frameMetadata);
+ EXPECT_LE(sensitivities[i] * (1.0 - TOLERANCE_MARGIN_METADATA), resultSensitivity);
+ EXPECT_GE(sensitivities[i] * (1.0 + TOLERANCE_MARGIN_METADATA), resultSensitivity);
+ EXPECT_LE(exposures[i] * (1.0 - TOLERANCE_MARGIN_METADATA), resultExposure);
+ EXPECT_GE(exposures[i] * (1.0 + TOLERANCE_MARGIN_METADATA), resultExposure);
+
+ ASSERT_EQ(OK, listener->waitForFrame(waitLimit));
+ captureBurstTimes.push_back(systemTime());
+ CpuConsumer::LockedBuffer imgBuffer;
+ ASSERT_EQ(OK, consumer->lockNextBuffer(&imgBuffer));
+ ALOGV("Got capture buffer for request %zu", i);
+
+ /**
+ * TODO: Validate capture buffer. Current brightness calculation
+ * is too slow, it also doesn't account for saturation effects,
+ * which is quite common since we are going over a significant
+ * range of EVs. we need figure out some reliable way to validate
+ * buffer data.
+ */
+
+ ASSERT_EQ(OK, consumer->unlockBuffer(imgBuffer));
+ if (i > 0) {
+ nsecs_t timeDelta =
+ captureBurstTimes[i] - captureBurstTimes[i-1];
+ EXPECT_GE(timeDelta * ( 1 + TOLERANCE_MARGIN_CAPTURE), exposures[i]);
+ }
+ }
+ }
+
+ /**
+ * Intentionally shadow default CreateStream function from base class,
+ * because we don't want any test in this class to use the default
+ * stream creation function.
+ */
+ void CreateStream() {
+ }
+};
+
+/**
+ * This test adds multiple stream use case test, basically, test 3
+ * streams:
+ *
+ * 1. Preview stream, with large size that is no bigger than 1080p
+ * we render this stream to display and vary the exposure time for
+ * for certain amount of time for visualization purpose.
+ *
+ * 2. Metering stream, with small size that is no bigger than VGA size.
+ * a burst is issued for different exposure times and analog gains
+ * (or analog gain implemented sensitivities) then check if the capture
+ * result metadata matches the request.
+ *
+ * 3. Capture stream, this is basically similar as meterting stream, but
+ * has large size, which is the largest supported JPEG capture size.
+ *
+ * This multiple stream test is to test if HAL supports:
+ *
+ * 1. Multiple streams like above, HAL should support at least 3 streams
+ * concurrently: one preview stream, 2 other YUV stream.
+ *
+ * 2. Manual control(gain/exposure) of mutiple burst capture.
+ */
+// Disable this test for now, as we need cleanup the usage of the deprecated tag quite a bit.
+TEST_F(CameraMultiStreamTest, DISABLED_MultiBurst) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ const int32_t* implDefData;
+ size_t implDefCount;
+ const int32_t* jpegData;
+ size_t jpegCount;
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) {
+ camera_metadata_ro_entry availableProcessedSizes =
+ GetStaticEntry(ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES);
+ ASSERT_EQ(0u, availableProcessedSizes.count % 2);
+ ASSERT_GE(availableProcessedSizes.count, 2u);
+ camera_metadata_ro_entry availableProcessedMinFrameDurations =
+ GetStaticEntry(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS);
+ EXPECT_EQ(availableProcessedSizes.count,
+ availableProcessedMinFrameDurations.count * 2);
+
+ camera_metadata_ro_entry availableJpegSizes =
+ GetStaticEntry(ANDROID_SCALER_AVAILABLE_JPEG_SIZES);
+ ASSERT_EQ(0u, availableJpegSizes.count % 2);
+ ASSERT_GE(availableJpegSizes.count, 2u);
+ implDefData = availableProcessedSizes.data.i32;
+ implDefCount = availableProcessedSizes.count;
+ jpegData = availableJpegSizes.data.i32;
+ jpegCount = availableJpegSizes.count;
+ } else {
+ getResolutionList(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, &implDefData, &implDefCount);
+ ASSERT_NE(0u, implDefCount)
+ << "Missing implementation defined sizes";
+ ASSERT_EQ(0u, implDefCount % 2);
+ ASSERT_GE(implDefCount, 2u);
+
+ getResolutionList(HAL_PIXEL_FORMAT_BLOB, &jpegData, &jpegCount);
+ ASSERT_EQ(0u, jpegCount % 2);
+ ASSERT_GE(jpegCount, 2u);
+ }
+
+ camera_metadata_ro_entry hardwareLevel =
+ GetStaticEntry(ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL);
+ ASSERT_EQ(1u, hardwareLevel.count);
+ uint8_t level = hardwareLevel.data.u8[0];
+ ASSERT_GE(level, ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED);
+ ASSERT_LE(level, ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_FULL);
+ if (level == ANDROID_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED) {
+ const ::testing::TestInfo* const test_info =
+ ::testing::UnitTest::GetInstance()->current_test_info();
+ std::cerr << "Skipping test "
+ << test_info->test_case_name() << "."
+ << test_info->name()
+ << " because HAL hardware supported level is limited "
+ << std::endl;
+ return;
+ }
+
+ // Find the right sizes for preview, metering, and capture streams
+ int64_t minFrameDuration = DEFAULT_FRAME_DURATION;
+ Size processedMinSize = {0, 0}, processedMaxSize = {0, 0};
+ Size jpegMaxSize = {0, 0};
+
+ int32_t minIdx, maxIdx;
+ GetMinSize(implDefData, implDefCount, &processedMinSize, &minIdx);
+ GetMaxSize(implDefData, implDefCount, &processedMaxSize, &maxIdx);
+ ALOGV("Found processed max size: %dx%d, min size = %dx%d",
+ processedMaxSize.width, processedMaxSize.height,
+ processedMinSize.width, processedMinSize.height);
+
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) {
+ camera_metadata_ro_entry availableProcessedMinFrameDurations =
+ GetStaticEntry(ANDROID_SCALER_AVAILABLE_PROCESSED_MIN_DURATIONS);
+ minFrameDuration =
+ availableProcessedMinFrameDurations.data.i64[maxIdx / 2];
+ } else {
+ minFrameDuration = getMinFrameDurationFor(
+ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ processedMaxSize.width, processedMaxSize.height);
+ }
+
+ EXPECT_GT(minFrameDuration, 0);
+
+ if (minFrameDuration <= 0) {
+ minFrameDuration = DEFAULT_FRAME_DURATION;
+ }
+
+ ALOGV("targeted minimal frame duration is: %" PRId64 "ns", minFrameDuration);
+
+ GetMaxSize(jpegData, jpegCount, &jpegMaxSize, &maxIdx);
+ ALOGV("Found Jpeg size max idx = %d", maxIdx);
+
+ // Max Jpeg size should be available in processed sizes. Use it for
+ // YUV capture anyway.
+ EXPECT_EQ(processedMaxSize.width, jpegMaxSize.width);
+ EXPECT_EQ(processedMaxSize.height, jpegMaxSize.height);
+
+ // Cap preview size.
+ Size previewLimit = { PREVIEW_WIDTH_CAP, PREVIEW_HEIGHT_CAP };
+ // FIXME: need make sure the previewLimit is supported by HAL.
+ Size previewSize = CapSize(previewLimit, processedMaxSize);
+ // Cap Metering size.
+ Size meteringLimit = { METERING_WIDTH_CAP, METERING_HEIGHT_CAP };
+ // Cap metering size to VGA (VGA is mandatory by CDD)
+ Size meteringSize = CapSize(meteringLimit, processedMinSize);
+ // Capture stream should be the max size of jpeg sizes.
+ ALOGV("preview size: %dx%d, metering size: %dx%d, capture size: %dx%d",
+ previewSize.width, previewSize.height,
+ meteringSize.width, meteringSize.height,
+ jpegMaxSize.width, jpegMaxSize.height);
+
+ // Create streams
+ // Preview stream: small resolution, render on the screen.
+ sp<CameraStream> previewStream;
+ {
+ sp<Surface> surface;
+ ASSERT_NO_FATAL_FAILURE(CreateOnScreenSurface(/*out*/surface));
+ previewStream = CreateStream(
+ previewSize.width,
+ previewSize.height,
+ mDevice,
+ DISPLAY_STREAM_PARAMETERS,
+ surface,
+ false);
+ ASSERT_NE((void*)NULL, previewStream.get());
+ ASSERT_NO_FATAL_FAILURE(previewStream->SetUp());
+ }
+ // Metering burst stream: small resolution yuv stream
+ sp<CameraStream> meteringStream =
+ CreateStream(
+ meteringSize.width,
+ meteringSize.height,
+ mDevice);
+ ASSERT_NE((void*)NULL, meteringStream.get());
+ ASSERT_NO_FATAL_FAILURE(meteringStream->SetUp());
+ // Capture burst stream: full resolution yuv stream
+ sp<CameraStream> captureStream =
+ CreateStream(
+ jpegMaxSize.width,
+ jpegMaxSize.height,
+ mDevice);
+ ASSERT_NE((void*)NULL, captureStream.get());
+ ASSERT_NO_FATAL_FAILURE(captureStream->SetUp());
+
+ // Create Preview request.
+ CameraMetadata previewRequest, meteringRequest, captureRequest;
+ ASSERT_NO_FATAL_FAILURE(CreateRequests(previewRequest, meteringRequest,
+ captureRequest, previewStream->GetStreamId(),
+ meteringStream->GetStreamId(), captureStream->GetStreamId()));
+
+ // Start preview
+ if (CAMERA_MULTI_STREAM_DEBUGGING) {
+ previewRequest.dump(STDOUT_FILENO);
+ }
+
+ // Generate exposure and sensitivity lists
+ camera_metadata_ro_entry exposureTimeRange =
+ GetStaticEntry(ANDROID_SENSOR_INFO_EXPOSURE_TIME_RANGE);
+ ASSERT_EQ(exposureTimeRange.count, 2u);
+ int64_t minExp = exposureTimeRange.data.i64[0];
+ int64_t maxExp = exposureTimeRange.data.i64[1];
+ ASSERT_GT(maxExp, minExp);
+
+ camera_metadata_ro_entry sensivityRange =
+ GetStaticEntry(ANDROID_SENSOR_INFO_SENSITIVITY_RANGE);
+ ASSERT_EQ(2u, sensivityRange.count);
+ int32_t minSensitivity = sensivityRange.data.i32[0];
+ int32_t maxSensitivity = sensivityRange.data.i32[1];
+ camera_metadata_ro_entry maxAnalogSenEntry =
+ GetStaticEntry(ANDROID_SENSOR_MAX_ANALOG_SENSITIVITY);
+ EXPECT_EQ(1u, maxAnalogSenEntry.count);
+ int32_t maxAnalogSensitivity = maxAnalogSenEntry.data.i32[0];
+ EXPECT_LE(maxAnalogSensitivity, maxSensitivity);
+ // Only test the sensitivity implemented by analog gain.
+ if (maxAnalogSensitivity > maxSensitivity) {
+ // Fallback to maxSensitity
+ maxAnalogSensitivity = maxSensitivity;
+ }
+
+ // sensitivity list, only include the sensitivities that are implemented
+ // purely by analog gain if possible.
+ Vector<int32_t> sensitivities;
+ Vector<int64_t> exposures;
+ size_t count = (maxAnalogSensitivity - minSensitivity + 99) / 100;
+ sensitivities.push_back(minSensitivity);
+ for (size_t i = 1; i < count; i++) {
+ sensitivities.push_back(minSensitivity + i * 100);
+ }
+ sensitivities.push_back(maxAnalogSensitivity);
+ ALOGV("Sensitivity Range: min=%d, max=%d", minSensitivity,
+ maxAnalogSensitivity);
+ int64_t exp = minExp;
+ while (exp < maxExp) {
+ exposures.push_back(exp);
+ exp *= 2;
+ }
+ // Sweep the exposure value for preview, just for visual inspection purpose.
+ uint8_t cmOff = static_cast<uint8_t>(ANDROID_CONTROL_MODE_OFF);
+ for (size_t i = 0; i < exposures.size(); i++) {
+ ASSERT_EQ(OK, previewRequest.update(
+ ANDROID_CONTROL_MODE,
+ &cmOff, 1));
+ ASSERT_EQ(OK, previewRequest.update(
+ ANDROID_SENSOR_EXPOSURE_TIME,
+ &exposures[i], 1));
+ ALOGV("Submitting preview request %zu with exposure %" PRId64,
+ i, exposures[i]);
+
+ ASSERT_EQ(OK, mDevice->setStreamingRequest(previewRequest));
+
+ // Let preview run 200ms on screen for each exposure time.
+ usleep(PREVIEW_RENDERING_TIME_INTERVAL);
+ }
+
+ size_t requestCount = sensitivities.size();
+ if (requestCount > exposures.size()) {
+ requestCount = exposures.size();
+ }
+
+ // To maintain the request id uniqueness (preview request id is 0), make burst capture start
+ // request id 1 here.
+ int32_t requestIdStart = 1;
+ /**
+ * Submit metering request, set default frame duration to minimal possible
+ * value, we want the capture to run as fast as possible. HAL should adjust
+ * the frame duration to minimal necessary value to support the requested
+ * exposure value if exposure is larger than frame duration.
+ */
+ CaptureBurst(meteringRequest, requestCount, exposures, sensitivities,
+ meteringStream, minFrameDuration, &requestIdStart);
+
+ /**
+ * Submit capture request, set default frame duration to minimal possible
+ * value, we want the capture to run as fast as possible. HAL should adjust
+ * the frame duration to minimal necessary value to support the requested
+ * exposure value if exposure is larger than frame duration.
+ */
+ CaptureBurst(captureRequest, requestCount, exposures, sensitivities,
+ captureStream, minFrameDuration, &requestIdStart);
+
+ ASSERT_EQ(OK, mDevice->clearStreamingRequest());
+}
+
+}
+}
+}
diff --git a/libhardware/tests/camera2/CameraStreamFixture.h b/libhardware/tests/camera2/CameraStreamFixture.h
new file mode 100644
index 0000000..92ff05b
--- /dev/null
+++ b/libhardware/tests/camera2/CameraStreamFixture.h
@@ -0,0 +1,377 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_CAMERA2_TESTS_STREAM_FIXTURE__
+#define __ANDROID_HAL_CAMERA2_TESTS_STREAM_FIXTURE__
+
+#include <gtest/gtest.h>
+#include <iostream>
+#include <fstream>
+
+#include <gui/CpuConsumer.h>
+#include <gui/Surface.h>
+#include <utils/Condition.h>
+#include <utils/Mutex.h>
+#include <system/camera_metadata.h>
+
+#include "CameraModuleFixture.h"
+#include "TestExtensions.h"
+
+#define ALIGN(x, mask) ( ((x) + (mask) - 1) & ~((mask) - 1) )
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+// Format specifier for picking the best format for CPU reading the given device
+// version
+#define CAMERA_STREAM_AUTO_CPU_FORMAT (-1)
+
+struct CameraStreamParams;
+
+void PrintTo(const CameraStreamParams& p, ::std::ostream* os);
+
+struct CameraStreamParams {
+ int mFormat;
+ int mHeapCount;
+
+};
+
+inline ::std::ostream& operator<<(::std::ostream& os, const CameraStreamParams &p) {
+ PrintTo(p, &os);
+ return os;
+}
+
+inline void PrintTo(const CameraStreamParams& p, ::std::ostream* os) {
+ char fmt[100];
+ camera_metadata_enum_snprint(
+ ANDROID_SCALER_AVAILABLE_FORMATS, p.mFormat, fmt, sizeof(fmt));
+
+ *os << "{ ";
+ *os << "Format: 0x" << std::hex << p.mFormat << ", ";
+ *os << "Format name: " << fmt << ", ";
+ *os << "HeapCount: " << p.mHeapCount;
+ *os << " }";
+}
+
+class CameraStreamFixture
+ : public CameraModuleFixture</*InfoQuirk*/true> {
+
+public:
+ explicit CameraStreamFixture(CameraStreamParams p)
+ : CameraModuleFixture(TestSettings::DeviceId()) {
+ TEST_EXTENSION_FORKING_CONSTRUCTOR;
+
+ mParam = p;
+
+ SetUp();
+ }
+
+ ~CameraStreamFixture() {
+ TEST_EXTENSION_FORKING_DESTRUCTOR;
+
+ TearDown();
+ }
+
+private:
+
+ void SetUp() {
+ TEST_EXTENSION_FORKING_SET_UP;
+
+ CameraModuleFixture::SetUp();
+
+ sp<CameraDeviceBase> device = mDevice;
+
+ /* use an arbitrary w,h */
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) {
+ const int tag = ANDROID_SCALER_AVAILABLE_PROCESSED_SIZES;
+
+ const CameraMetadata& staticInfo = device->info();
+ camera_metadata_ro_entry entry = staticInfo.find(tag);
+ ASSERT_NE(0u, entry.count)
+ << "Missing tag android.scaler.availableProcessedSizes";
+
+ ASSERT_LE(2u, entry.count);
+ /* this seems like it would always be the smallest w,h
+ but we actually make no contract that it's sorted asc */
+ mWidth = entry.data.i32[0];
+ mHeight = entry.data.i32[1];
+ } else {
+ buildOutputResolutions();
+ const int32_t *implDefResolutions = NULL;
+ size_t implDefResolutionsCount;
+
+ int format = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
+
+ getResolutionList(format,
+ &implDefResolutions, &implDefResolutionsCount);
+ ASSERT_NE(0u, implDefResolutionsCount)
+ << "Missing implementation defined sizes";
+ mWidth = implDefResolutions[0];
+ mHeight = implDefResolutions[1];
+ }
+ }
+ void TearDown() {
+ TEST_EXTENSION_FORKING_TEAR_DOWN;
+
+ // important: shut down HAL before releasing streams
+ CameraModuleFixture::TearDown();
+
+ deleteOutputResolutions();
+ mSurface.clear();
+ mCpuConsumer.clear();
+ mFrameListener.clear();
+ }
+
+protected:
+
+ int64_t getMinFrameDurationFor(int32_t format, int32_t width, int32_t height) {
+ int64_t minFrameDuration = -1L;
+ const int tag = ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS;
+ sp<CameraDeviceBase> device = mDevice;
+ const CameraMetadata& staticInfo = device->info();
+ camera_metadata_ro_entry_t availableMinDurations = staticInfo.find(tag);
+ for (uint32_t i = 0; i < availableMinDurations.count; i += 4) {
+ if (format == availableMinDurations.data.i64[i] &&
+ width == availableMinDurations.data.i64[i + 1] &&
+ height == availableMinDurations.data.i64[i + 2]) {
+ minFrameDuration = availableMinDurations.data.i64[i + 3];
+ break;
+ }
+ }
+ return minFrameDuration;
+ }
+
+ void buildOutputResolutions() {
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) {
+ return;
+ }
+ if (mOutputResolutions.isEmpty()) {
+ const int tag = ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS;
+ const CameraMetadata& staticInfo = mDevice->info();
+ camera_metadata_ro_entry_t availableStrmConfigs = staticInfo.find(tag);
+ ASSERT_EQ(0u, availableStrmConfigs.count % 4);
+ for (uint32_t i = 0; i < availableStrmConfigs.count; i += 4) {
+ int32_t format = availableStrmConfigs.data.i32[i];
+ int32_t width = availableStrmConfigs.data.i32[i + 1];
+ int32_t height = availableStrmConfigs.data.i32[i + 2];
+ int32_t inOrOut = availableStrmConfigs.data.i32[i + 3];
+ if (inOrOut == ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT) {
+ int index = mOutputResolutions.indexOfKey(format);
+ if (index < 0) {
+ index = mOutputResolutions.add(format, new Vector<int32_t>());
+ ASSERT_TRUE(index >= 0);
+ }
+ Vector<int32_t> *resolutions = mOutputResolutions.editValueAt(index);
+ resolutions->add(width);
+ resolutions->add(height);
+ }
+ }
+ }
+ }
+
+ void getResolutionList(int32_t format,
+ const int32_t **list,
+ size_t *count) {
+ ALOGV("Getting resolutions for format %x", format);
+ if (getDeviceVersion() < CAMERA_DEVICE_API_VERSION_3_2) {
+ return;
+ }
+ int index = mOutputResolutions.indexOfKey(format);
+ ASSERT_TRUE(index >= 0);
+ Vector<int32_t>* resolutions = mOutputResolutions.valueAt(index);
+ *list = resolutions->array();
+ *count = resolutions->size();
+ }
+
+ void deleteOutputResolutions() {
+ for (uint32_t i = 0; i < mOutputResolutions.size(); i++) {
+ Vector<int32_t>* resolutions = mOutputResolutions.editValueAt(i);
+ delete resolutions;
+ }
+ mOutputResolutions.clear();
+ }
+
+ struct FrameListener : public ConsumerBase::FrameAvailableListener {
+
+ FrameListener() {
+ mPendingFrames = 0;
+ }
+
+ // CpuConsumer::FrameAvailableListener implementation
+ virtual void onFrameAvailable(const BufferItem& /* item */) {
+ ALOGV("Frame now available (start)");
+
+ Mutex::Autolock lock(mMutex);
+ mPendingFrames++;
+ mCondition.signal();
+
+ ALOGV("Frame now available (end)");
+ }
+
+ status_t waitForFrame(nsecs_t timeout) {
+ status_t res;
+ Mutex::Autolock lock(mMutex);
+ while (mPendingFrames == 0) {
+ res = mCondition.waitRelative(mMutex, timeout);
+ if (res != OK) return res;
+ }
+ mPendingFrames--;
+ return OK;
+ }
+
+ private:
+ Mutex mMutex;
+ Condition mCondition;
+ int mPendingFrames;
+ };
+
+ void CreateStream() {
+ sp<CameraDeviceBase> device = mDevice;
+ CameraStreamParams p = mParam;
+
+ sp<IGraphicBufferProducer> producer;
+ sp<IGraphicBufferConsumer> consumer;
+ BufferQueue::createBufferQueue(&producer, &consumer);
+ mCpuConsumer = new CpuConsumer(consumer, p.mHeapCount);
+ mCpuConsumer->setName(String8("CameraStreamTest::mCpuConsumer"));
+
+ mSurface = new Surface(producer);
+
+ int format = MapAutoFormat(p.mFormat);
+
+ ASSERT_EQ(OK,
+ device->createStream(mSurface,
+ mWidth, mHeight, format,
+ HAL_DATASPACE_UNKNOWN,
+ CAMERA3_STREAM_ROTATION_0,
+ &mStreamId));
+
+ ASSERT_NE(-1, mStreamId);
+
+ // do not make 'this' a FrameListener or the lifetime policy will clash
+ mFrameListener = new FrameListener();
+ mCpuConsumer->setFrameAvailableListener(mFrameListener);
+ }
+
+ void DeleteStream() {
+ ASSERT_EQ(OK, mDevice->deleteStream(mStreamId));
+ }
+
+ int MapAutoFormat(int format) {
+ if (format == CAMERA_STREAM_AUTO_CPU_FORMAT) {
+ if (getDeviceVersion() >= CAMERA_DEVICE_API_VERSION_3_0) {
+ format = HAL_PIXEL_FORMAT_YCbCr_420_888;
+ } else {
+ format = HAL_PIXEL_FORMAT_YCrCb_420_SP;
+ }
+ }
+ return format;
+ }
+
+ void DumpYuvToFile(const String8 &fileName, const CpuConsumer::LockedBuffer &img) {
+ uint8_t *dataCb, *dataCr;
+ uint32_t stride;
+ uint32_t chromaStride;
+ uint32_t chromaStep;
+
+ switch (img.format) {
+ case HAL_PIXEL_FORMAT_YCbCr_420_888:
+ stride = img.stride;
+ chromaStride = img.chromaStride;
+ chromaStep = img.chromaStep;
+ dataCb = img.dataCb;
+ dataCr = img.dataCr;
+ break;
+ case HAL_PIXEL_FORMAT_YCrCb_420_SP:
+ stride = img.width;
+ chromaStride = img.width;
+ chromaStep = 2;
+ dataCr = img.data + img.width * img.height;
+ dataCb = dataCr + 1;
+ break;
+ case HAL_PIXEL_FORMAT_YV12:
+ stride = img.stride;
+ chromaStride = ALIGN(img.width / 2, 16);
+ chromaStep = 1;
+ dataCr = img.data + img.stride * img.height;
+ dataCb = dataCr + chromaStride * img.height/2;
+ break;
+ default:
+ ALOGE("Unknown format %d, not dumping", img.format);
+ return;
+ }
+
+ // Write Y
+ FILE *yuvFile = fopen(fileName.string(), "w");
+
+ size_t bytes;
+
+ for (size_t y = 0; y < img.height; ++y) {
+ bytes = fwrite(
+ reinterpret_cast<const char*>(img.data + stride * y),
+ 1, img.width, yuvFile);
+ if (bytes != img.width) {
+ ALOGE("Unable to write to file %s", fileName.string());
+ fclose(yuvFile);
+ return;
+ }
+ }
+
+ // Write Cb/Cr
+ uint8_t *src = dataCb;
+ for (int c = 0; c < 2; ++c) {
+ for (size_t y = 0; y < img.height / 2; ++y) {
+ uint8_t *px = src + y * chromaStride;
+ if (chromaStep != 1) {
+ for (size_t x = 0; x < img.width / 2; ++x) {
+ fputc(*px, yuvFile);
+ px += chromaStep;
+ }
+ } else {
+ bytes = fwrite(reinterpret_cast<const char*>(px),
+ 1, img.width / 2, yuvFile);
+ if (bytes != img.width / 2) {
+ ALOGE("Unable to write to file %s", fileName.string());
+ fclose(yuvFile);
+ return;
+ }
+ }
+ }
+ src = dataCr;
+ }
+ fclose(yuvFile);
+ }
+
+ int mWidth;
+ int mHeight;
+
+ int mStreamId;
+
+ android::sp<FrameListener> mFrameListener;
+ android::sp<CpuConsumer> mCpuConsumer;
+ android::sp<Surface> mSurface;
+ KeyedVector<int32_t, Vector<int32_t>* > mOutputResolutions;
+
+private:
+ CameraStreamParams mParam;
+};
+
+}
+}
+}
+
+#endif
diff --git a/libhardware/tests/camera2/CameraStreamTests.cpp b/libhardware/tests/camera2/CameraStreamTests.cpp
new file mode 100644
index 0000000..a3b8c47
--- /dev/null
+++ b/libhardware/tests/camera2/CameraStreamTests.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <iostream>
+#include <iomanip>
+#include <gtest/gtest.h>
+
+#define LOG_TAG "CameraStreamTest"
+#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include "hardware/hardware.h"
+#include "hardware/camera2.h"
+
+#include <utils/StrongPointer.h>
+#include <gui/CpuConsumer.h>
+#include <gui/Surface.h>
+
+#include <device2/Camera2Device.h>
+
+#include "CameraStreamFixture.h"
+#include "TestExtensions.h"
+
+using namespace android;
+using namespace android::camera2;
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+class CameraStreamTest
+ : public ::testing::TestWithParam<CameraStreamParams>,
+ public CameraStreamFixture {
+
+public:
+ CameraStreamTest() : CameraStreamFixture(GetParam()) {
+ TEST_EXTENSION_FORKING_CONSTRUCTOR;
+ }
+
+ ~CameraStreamTest() {
+ TEST_EXTENSION_FORKING_DESTRUCTOR;
+ }
+
+ virtual void SetUp() {
+ TEST_EXTENSION_FORKING_SET_UP;
+ }
+ virtual void TearDown() {
+ TEST_EXTENSION_FORKING_TEAR_DOWN;
+ }
+
+protected:
+
+};
+
+TEST_P(CameraStreamTest, CreateStream) {
+
+ TEST_EXTENSION_FORKING_INIT;
+
+ /** Make sure the format requested is supported. PASS this test if it's not
+ * not supported.
+ *
+ * TODO: would be nice of not running this test in the first place
+ * somehow.
+ */
+ {
+ camera_metadata_ro_entry availableFormats =
+ GetStaticEntry(ANDROID_SCALER_AVAILABLE_FORMATS);
+
+ bool hasFormat = false;
+ for (size_t i = 0; i < availableFormats.count; ++i) {
+ if (availableFormats.data.i32[i] == GetParam().mFormat) {
+ hasFormat = true;
+ break;
+ }
+ }
+
+ if (!hasFormat) {
+ const ::testing::TestInfo* const test_info =
+ ::testing::UnitTest::GetInstance()->current_test_info();
+ std::cerr << "Skipping test "
+ << test_info->test_case_name() << "."
+ << test_info->name()
+ << " because the format was not available: "
+ << GetParam() << std::endl;
+ return;
+ }
+ }
+
+ ASSERT_NO_FATAL_FAILURE(CreateStream());
+ ASSERT_NO_FATAL_FAILURE(DeleteStream());
+}
+
+//TODO: use a combinatoric generator
+static CameraStreamParams TestParameters[] = {
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ /*mHeapCount*/ 1
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ /*mHeapCount*/ 2
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+ /*mHeapCount*/ 3
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_YCrCb_420_SP, // NV21
+ /*mHeapCount*/ 1
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_YCrCb_420_SP,
+ /*mHeapCount*/ 2
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_YCrCb_420_SP,
+ /*mHeapCount*/ 3
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_YV12,
+ /*mHeapCount*/ 1
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_YV12,
+ /*mHeapCount*/ 2
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_YV12,
+ /*mHeapCount*/ 3
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_Y8,
+ /*mHeapCount*/ 1
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_Y8,
+ /*mHeapCount*/ 2
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_Y8,
+ /*mHeapCount*/ 3
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_Y16,
+ /*mHeapCount*/ 1
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_Y16,
+ /*mHeapCount*/ 2
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_Y16,
+ /*mHeapCount*/ 3
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_RAW16,
+ /*mHeapCount*/ 1
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_RAW16,
+ /*mHeapCount*/ 2
+ },
+ {
+ /*mFormat*/ HAL_PIXEL_FORMAT_RAW16,
+ /*mHeapCount*/ 3
+ },
+};
+
+INSTANTIATE_TEST_CASE_P(StreamParameterCombinations, CameraStreamTest,
+ testing::ValuesIn(TestParameters));
+
+
+}
+}
+}
diff --git a/libhardware/tests/camera2/ForkedTests.cpp b/libhardware/tests/camera2/ForkedTests.cpp
new file mode 100644
index 0000000..39599da
--- /dev/null
+++ b/libhardware/tests/camera2/ForkedTests.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+
+#include <stdlib.h>
+
+#include "TestExtensions.h"
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+// Intentionally disabled since 2 of these tests are supposed to fail
+class DISABLED_ForkedTest : public ::testing::Test {
+
+ virtual void SetUp() {
+ TEST_EXTENSION_FORKING_SET_UP;
+ }
+
+ virtual void TearDown() {
+ TEST_EXTENSION_FORKING_TEAR_DOWN;
+ }
+};
+
+// intentionally fail
+TEST_F(DISABLED_ForkedTest, FailCrash) {
+ TEST_EXTENSION_FORKING_INIT;
+ abort();
+}
+
+TEST_F(DISABLED_ForkedTest, SucceedNormal) {
+ TEST_EXTENSION_FORKING_INIT;
+
+ EXPECT_TRUE(true);
+}
+
+// intentionally fail
+TEST_F(DISABLED_ForkedTest, FailNormal) {
+ TEST_EXTENSION_FORKING_INIT;
+
+ EXPECT_TRUE(false);
+}
+
+}
+}
+}
+
diff --git a/libhardware/tests/camera2/TestExtensions.h b/libhardware/tests/camera2/TestExtensions.h
new file mode 100644
index 0000000..2af587d
--- /dev/null
+++ b/libhardware/tests/camera2/TestExtensions.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_CAMERA2_TESTS_EXTENSIONS__
+#define __ANDROID_HAL_CAMERA2_TESTS_EXTENSIONS__
+
+#include "TestForkerEventListener.h"
+#include "TestSettings.h"
+
+// Use at the beginning of each Test::SetUp() impl
+#define TEST_EXTENSION_FORKING_SET_UP \
+ do { \
+ if (TEST_EXTENSION_FORKING_ENABLED) { \
+ if (!TestForkerEventListener::mIsForked) { \
+ return; \
+ } \
+ } \
+ } while (false) \
+
+// Use at the beginning of each Test::TearDown() impl
+#define TEST_EXTENSION_FORKING_TEAR_DOWN TEST_EXTENSION_FORKING_SET_UP
+
+// Use at the beginning of each Test::Test constructor
+#define TEST_EXTENSION_FORKING_CONSTRUCTOR TEST_EXTENSION_FORKING_SET_UP
+
+// Use at the beginning of each Test::~Test destructor
+#define TEST_EXTENSION_FORKING_DESTRUCTOR TEST_EXTENSION_FORKING_TEAR_DOWN
+
+// Use at the beginning of each test body, e.g. TEST(x,y), TEST_F(x,y), etc
+#define TEST_EXTENSION_FORKING_INIT \
+ do { \
+ TEST_EXTENSION_FORKING_SET_UP; \
+ if (HasFatalFailure()) return; \
+ } while(false) \
+
+// Are we running each test by forking it?
+#define TEST_EXTENSION_FORKING_ENABLED \
+ (android::camera2::tests::TestSettings::ForkingEnabled())
+
+
+
+#endif
+
diff --git a/libhardware/tests/camera2/TestForkerEventListener.cpp b/libhardware/tests/camera2/TestForkerEventListener.cpp
new file mode 100644
index 0000000..9416db2
--- /dev/null
+++ b/libhardware/tests/camera2/TestForkerEventListener.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <string.h>
+
+#include <gtest/gtest.h>
+
+#include "TestForkerEventListener.h"
+#include "TestExtensions.h"
+
+#define DEBUG_TEST_FORKER_EVENT_LISTENER 0
+
+#define RETURN_CODE_PASSED 0
+#define RETURN_CODE_FAILED 1
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+bool TestForkerEventListener::mIsForked = false;
+
+TestForkerEventListener::TestForkerEventListener() {
+ mIsForked = false;
+ mHasSucceeded = true;
+ mTermSignal = 0;
+}
+
+// Called before a test starts.
+void TestForkerEventListener::OnTestStart(const ::testing::TestInfo&) {
+
+ if (!TEST_EXTENSION_FORKING_ENABLED) {
+ return;
+ }
+
+ pid_t childPid = fork();
+ if (childPid != 0) {
+ int status;
+ waitpid(childPid, &status, /*options*/0);
+
+ // terminated normally?
+ mHasSucceeded = WIFEXITED(status);
+ // terminate with return code 0 = test passed, 1 = test failed
+ if (mHasSucceeded) {
+ mHasSucceeded = WEXITSTATUS(status) == RETURN_CODE_PASSED;
+ } else if (WIFSIGNALED(status)) {
+ mTermSignal = WTERMSIG(status);
+ }
+
+ /* the test is then skipped by inserting the various
+ TEST_EXTENSION_ macros in TestExtensions.h */
+
+ } else {
+ mIsForked = true;
+ }
+}
+
+// Called after a failed assertion or a SUCCEED() invocation.
+void TestForkerEventListener::OnTestPartResult(
+ const ::testing::TestPartResult& test_part_result) {
+
+ if (DEBUG_TEST_FORKER_EVENT_LISTENER) {
+ printf("%s in %s:%d\n%s\n",
+ test_part_result.failed() ? "*** Failure" : "Success",
+ test_part_result.file_name(),
+ test_part_result.line_number(),
+ test_part_result.summary());
+ }
+}
+
+// Called after a test ends.
+void TestForkerEventListener::OnTestEnd(const ::testing::TestInfo& test_info) {
+
+ if (!TEST_EXTENSION_FORKING_ENABLED) {
+ return;
+ }
+
+ if (mIsForked) {
+ exit(test_info.result()->Passed()
+ ? RETURN_CODE_PASSED : RETURN_CODE_FAILED);
+ } else if (!mHasSucceeded && mTermSignal != 0) {
+
+ printf("*** Test %s.%s crashed with signal = %s\n",
+ test_info.test_case_name(), test_info.name(),
+ strsignal(mTermSignal));
+ }
+
+ //TODO: overload the default event listener to suppress this message
+ // dynamically (e.g. by skipping OnTestPartResult after OnTestEnd )
+
+ // trigger a test failure if the child has failed
+ if (!mHasSucceeded) {
+ ADD_FAILURE();
+ }
+ mTermSignal = 0;
+}
+
+
+}
+}
+}
+
diff --git a/libhardware/tests/camera2/TestForkerEventListener.h b/libhardware/tests/camera2/TestForkerEventListener.h
new file mode 100644
index 0000000..347a06b
--- /dev/null
+++ b/libhardware/tests/camera2/TestForkerEventListener.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_CAMERA2_TESTS_FORKER_EVENT_LISTENER__
+#define __ANDROID_HAL_CAMERA2_TESTS_FORKER_EVENT_LISTENER__
+
+#include <gtest/gtest.h>
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+// Fork before each test runs.
+class TestForkerEventListener : public ::testing::EmptyTestEventListener {
+
+public:
+
+ TestForkerEventListener();
+
+private:
+
+ // Called before a test starts.
+ virtual void OnTestStart(const ::testing::TestInfo& test_info);
+
+ // Called after a failed assertion or a SUCCEED() invocation.
+ virtual void OnTestPartResult(
+ const ::testing::TestPartResult& test_part_result);
+
+ // Called after a test ends.
+ virtual void OnTestEnd(const ::testing::TestInfo& test_info);
+
+ bool mHasSucceeded;
+ int mTermSignal;
+
+public:
+ // do not read directly. use TEST_EXTENSION macros instead
+ static bool mIsForked;
+};
+
+}
+}
+}
+
+#endif
diff --git a/libhardware/tests/camera2/TestSettings.cpp b/libhardware/tests/camera2/TestSettings.cpp
new file mode 100644
index 0000000..f07adc8
--- /dev/null
+++ b/libhardware/tests/camera2/TestSettings.cpp
@@ -0,0 +1,167 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstdlib>
+#include <getopt.h>
+#include <cstring>
+#include <iostream>
+
+#include "TestSettings.h"
+
+#include "TestForkerEventListener.h"
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+bool TestSettings::mForkingDisabled = false;
+int TestSettings::mDeviceId = 0;
+char* const* TestSettings::mArgv;
+
+// --forking-disabled, false by default
+bool TestSettings::ForkingDisabled() {
+ return mForkingDisabled;
+}
+
+// reverse of --forking-disabled (not a flag), true by default
+bool TestSettings::ForkingEnabled() {
+ return !ForkingDisabled();
+}
+
+// --device-id, 0 by default
+int TestSettings::DeviceId() {
+ return mDeviceId;
+}
+
+// returns false if usage should be printed and we should exit early
+bool TestSettings::ParseArgs(int argc, char* const argv[])
+{
+ {
+ char *env = getenv("CAMERA2_TEST_FORKING_DISABLED");
+ if (env) {
+ mForkingDisabled = atoi(env);
+ }
+
+ env = getenv("CAMERA2_TEST_DEVICE_ID");
+ if (env) {
+ mDeviceId = atoi(env);
+ }
+ }
+
+ bool printHelp = false;
+ bool unknownArgs = false;
+
+ opterr = 0; // do not print errors for unknown arguments
+ while (true) {
+ int c;
+ int option_index = 0;
+
+ static struct option long_options[] = {
+ /* name has_arg flag val */
+ {"forking-disabled", optional_argument, 0, 0 },
+ {"device-id", required_argument, 0, 0 },
+ {"help", no_argument, 0, 'h' },
+ {0, 0, 0, 0 }
+ };
+
+ // Note: '+' in optstring means do not mutate argv
+ c = getopt_long(argc, argv, "+h", long_options, &option_index);
+
+ if (c == -1) { // All arguments exhausted
+ break;
+ }
+ if (c == '?') { // Argument not in option lists
+ const char *arg = argv[optind-1];
+ // Anything beginning with gtest_ will get handled by gtest
+ if (strstr(arg, "--gtest_") != arg) {
+ std::cerr << "Unknown argument: " << arg << std::endl;
+ unknownArgs = true;
+ }
+ continue;
+ }
+
+ switch (c) {
+ case 0: // long option
+ switch (option_index) {
+ case 0: {
+ const char *arg = optarg ?: "1";
+ mForkingDisabled = atoi(arg);
+ break;
+ }
+ case 1: {
+ mDeviceId = atoi(optarg);
+ break;
+ }
+ default:
+ std::cerr << "Unknown long option: " << option_index << std::endl;
+ break;
+ }
+ break; // case 0
+ case 'h': // help
+ printHelp = true;
+ break;
+ default: // case '?'
+ std::cerr << "Unknown option: " << optarg << std::endl;
+ }
+ }
+
+ if (unknownArgs) {
+ std::cerr << std::endl;
+ }
+
+ mArgv = argv;
+
+ if (printHelp || unknownArgs) {
+ return false;
+ }
+
+ std::cerr << "Forking Disabled: "
+ << (mForkingDisabled ? "yes" : "no") << std::endl;
+
+ std::cerr << "Device ID: " << mDeviceId << std::endl;
+
+ return true;
+}
+
+// print usage/help list of commands (non-gtest)
+void TestSettings::PrintUsage() {
+ std::cerr << "Usage: " << mArgv[0] << " [OPTIONS]" << std::endl;
+ std::cerr << std::endl;
+
+ std::cerr << "Main modes of operation:"
+ << std::endl;
+ std::cerr << " --forking-disabled[=1] don't fork process before "
+ << std::endl
+ << " running a new test."
+ << std::endl
+ << " (default enabled)"
+ << std::endl;
+ std::cerr << " --device-id=ID specify a different camera ID"
+ << std::endl
+ << " (default 0)"
+ << std::endl;
+
+ std::cerr << " -h, --help print this help listing"
+ << std::endl;
+
+
+ std::cerr << std::endl;
+}
+
+}
+}
+}
+
diff --git a/libhardware/tests/camera2/TestSettings.h b/libhardware/tests/camera2/TestSettings.h
new file mode 100644
index 0000000..6164de5
--- /dev/null
+++ b/libhardware/tests/camera2/TestSettings.h
@@ -0,0 +1,56 @@
+/*
+:qa
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_CAMERA2_TESTS_SETTINGS__
+#define __ANDROID_HAL_CAMERA2_TESTS_SETTINGS__
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+class TestSettings {
+
+public:
+ // --forking-disabled, false by default
+ static bool ForkingDisabled();
+
+ // reverse of --forking-disabled (not a flag), true by default
+ static bool ForkingEnabled();
+
+ // --device-id, 0 by default
+ static int DeviceId();
+
+ // returns false if usage should be printed and we should exit early
+ static bool ParseArgs(int argc, char* const argv[]);
+
+ // print usage/help list of commands (non-gtest)
+ static void PrintUsage();
+
+private:
+ TestSettings();
+ ~TestSettings();
+
+ static bool mForkingDisabled;
+ static int mDeviceId;
+ static char* const* mArgv;
+};
+
+}
+}
+}
+
+#endif
diff --git a/libhardware/tests/camera2/camera2_utils.cpp b/libhardware/tests/camera2/camera2_utils.cpp
new file mode 100644
index 0000000..dab0ae9
--- /dev/null
+++ b/libhardware/tests/camera2/camera2_utils.cpp
@@ -0,0 +1,609 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Utility classes for camera2 HAL testing
+
+#define LOG_TAG "Camera2_test_utils"
+#define LOG_NDEBUG 0
+
+#include "utils/Log.h"
+#include "camera2_utils.h"
+#include <dlfcn.h>
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+/**
+ * MetadataQueue
+ */
+
+MetadataQueue::MetadataQueue():
+ mDevice(NULL),
+ mFrameCount(0),
+ mCount(0),
+ mStreamSlotCount(0),
+ mSignalConsumer(true)
+{
+ camera2_request_queue_src_ops::dequeue_request = consumer_dequeue;
+ camera2_request_queue_src_ops::request_count = consumer_buffer_count;
+ camera2_request_queue_src_ops::free_request = consumer_free;
+
+ camera2_frame_queue_dst_ops::dequeue_frame = producer_dequeue;
+ camera2_frame_queue_dst_ops::cancel_frame = producer_cancel;
+ camera2_frame_queue_dst_ops::enqueue_frame = producer_enqueue;
+}
+
+MetadataQueue::~MetadataQueue() {
+ freeBuffers(mEntries.begin(), mEntries.end());
+ freeBuffers(mStreamSlot.begin(), mStreamSlot.end());
+}
+
+// Interface to camera2 HAL as consumer (input requests/reprocessing)
+const camera2_request_queue_src_ops_t* MetadataQueue::getToConsumerInterface() {
+ return static_cast<camera2_request_queue_src_ops_t*>(this);
+}
+
+void MetadataQueue::setFromConsumerInterface(camera2_device_t *d) {
+ mDevice = d;
+}
+
+const camera2_frame_queue_dst_ops_t* MetadataQueue::getToProducerInterface() {
+ return static_cast<camera2_frame_queue_dst_ops_t*>(this);
+}
+
+// Real interfaces
+status_t MetadataQueue::enqueue(camera_metadata_t *buf) {
+ Mutex::Autolock l(mMutex);
+
+ mCount++;
+ mEntries.push_back(buf);
+ notEmpty.signal();
+
+ if (mSignalConsumer && mDevice != NULL) {
+ mSignalConsumer = false;
+
+ mMutex.unlock();
+ ALOGV("%s: Signaling consumer", __FUNCTION__);
+ mDevice->ops->notify_request_queue_not_empty(mDevice);
+ mMutex.lock();
+ }
+ return OK;
+}
+
+int MetadataQueue::getBufferCount() {
+ Mutex::Autolock l(mMutex);
+ if (mStreamSlotCount > 0) {
+ return CAMERA2_REQUEST_QUEUE_IS_BOTTOMLESS;
+ }
+ return mCount;
+}
+
+status_t MetadataQueue::dequeue(camera_metadata_t **buf, bool incrementCount) {
+ Mutex::Autolock l(mMutex);
+
+ if (mCount == 0) {
+ if (mStreamSlotCount == 0) {
+ ALOGV("%s: Empty", __FUNCTION__);
+ *buf = NULL;
+ mSignalConsumer = true;
+ return OK;
+ }
+ ALOGV("%s: Streaming %d frames to queue", __FUNCTION__,
+ mStreamSlotCount);
+
+ for (List<camera_metadata_t*>::iterator slotEntry = mStreamSlot.begin();
+ slotEntry != mStreamSlot.end();
+ slotEntry++ ) {
+ size_t entries = get_camera_metadata_entry_count(*slotEntry);
+ size_t dataBytes = get_camera_metadata_data_count(*slotEntry);
+
+ camera_metadata_t *copy = allocate_camera_metadata(entries, dataBytes);
+ append_camera_metadata(copy, *slotEntry);
+ mEntries.push_back(copy);
+ }
+ mCount = mStreamSlotCount;
+ }
+ ALOGV("MetadataQueue: deque (%d buffers)", mCount);
+ camera_metadata_t *b = *(mEntries.begin());
+ mEntries.erase(mEntries.begin());
+
+ if (incrementCount) {
+ add_camera_metadata_entry(b,
+ ANDROID_REQUEST_FRAME_COUNT,
+ (void**)&mFrameCount, 1);
+ mFrameCount++;
+ }
+
+ *buf = b;
+ mCount--;
+
+ return OK;
+}
+
+status_t MetadataQueue::waitForBuffer(nsecs_t timeout) {
+ Mutex::Autolock l(mMutex);
+ status_t res;
+ while (mCount == 0) {
+ res = notEmpty.waitRelative(mMutex,timeout);
+ if (res != OK) return res;
+ }
+ return OK;
+}
+
+status_t MetadataQueue::setStreamSlot(camera_metadata_t *buf) {
+ if (buf == NULL) {
+ freeBuffers(mStreamSlot.begin(), mStreamSlot.end());
+ mStreamSlotCount = 0;
+ return OK;
+ }
+ if (mStreamSlotCount > 1) {
+ List<camera_metadata_t*>::iterator deleter = ++mStreamSlot.begin();
+ freeBuffers(++mStreamSlot.begin(), mStreamSlot.end());
+ mStreamSlotCount = 1;
+ }
+ if (mStreamSlotCount == 1) {
+ free_camera_metadata( *(mStreamSlot.begin()) );
+ *(mStreamSlot.begin()) = buf;
+ } else {
+ mStreamSlot.push_front(buf);
+ mStreamSlotCount = 1;
+ }
+ return OK;
+}
+
+status_t MetadataQueue::setStreamSlot(const List<camera_metadata_t*> &bufs) {
+ if (mStreamSlotCount > 0) {
+ freeBuffers(mStreamSlot.begin(), mStreamSlot.end());
+ }
+ mStreamSlot = bufs;
+ mStreamSlotCount = mStreamSlot.size();
+
+ return OK;
+}
+
+status_t MetadataQueue::freeBuffers(List<camera_metadata_t*>::iterator start,
+ const List<camera_metadata_t*>::iterator& end) {
+ while (start != end) {
+ free_camera_metadata(*start);
+ start = mStreamSlot.erase(start);
+ }
+ return OK;
+}
+
+MetadataQueue* MetadataQueue::getInstance(
+ const camera2_request_queue_src_ops_t *q) {
+ const MetadataQueue* cmq = static_cast<const MetadataQueue*>(q);
+ return const_cast<MetadataQueue*>(cmq);
+}
+
+MetadataQueue* MetadataQueue::getInstance(
+ const camera2_frame_queue_dst_ops_t *q) {
+ const MetadataQueue* cmq = static_cast<const MetadataQueue*>(q);
+ return const_cast<MetadataQueue*>(cmq);
+}
+
+int MetadataQueue::consumer_buffer_count(
+ const camera2_request_queue_src_ops_t *q) {
+ MetadataQueue *queue = getInstance(q);
+ return queue->getBufferCount();
+}
+
+int MetadataQueue::consumer_dequeue(const camera2_request_queue_src_ops_t *q,
+ camera_metadata_t **buffer) {
+ MetadataQueue *queue = getInstance(q);
+ return queue->dequeue(buffer, true);
+}
+
+int MetadataQueue::consumer_free(const camera2_request_queue_src_ops_t * /* q */,
+ camera_metadata_t *old_buffer) {
+ free_camera_metadata(old_buffer);
+ return OK;
+}
+
+int MetadataQueue::producer_dequeue(const camera2_frame_queue_dst_ops_t * /* q */,
+ size_t entries, size_t bytes,
+ camera_metadata_t **buffer) {
+ camera_metadata_t *new_buffer =
+ allocate_camera_metadata(entries, bytes);
+ if (new_buffer == NULL) return NO_MEMORY;
+ *buffer = new_buffer;
+ return OK;
+}
+
+int MetadataQueue::producer_cancel(const camera2_frame_queue_dst_ops_t * /* q */,
+ camera_metadata_t *old_buffer) {
+ free_camera_metadata(old_buffer);
+ return OK;
+}
+
+int MetadataQueue::producer_enqueue(const camera2_frame_queue_dst_ops_t *q,
+ camera_metadata_t *filled_buffer) {
+ MetadataQueue *queue = getInstance(q);
+ return queue->enqueue(filled_buffer);
+}
+
+/**
+ * NotifierListener
+ */
+
+NotifierListener::NotifierListener() {
+}
+
+status_t NotifierListener::getNotificationsFrom(camera2_device *dev) {
+ if (!dev) return BAD_VALUE;
+ status_t err;
+ err = dev->ops->set_notify_callback(dev,
+ notify_callback_dispatch,
+ (void*)this);
+ return err;
+}
+
+status_t NotifierListener::getNextNotification(int32_t *msg_type,
+ int32_t *ext1,
+ int32_t *ext2,
+ int32_t *ext3) {
+ Mutex::Autolock l(mMutex);
+ if (mNotifications.size() == 0) return BAD_VALUE;
+ return getNextNotificationLocked(msg_type, ext1, ext2, ext3);
+}
+
+status_t NotifierListener::waitForNotification(int32_t *msg_type,
+ int32_t *ext1,
+ int32_t *ext2,
+ int32_t *ext3) {
+ Mutex::Autolock l(mMutex);
+ while (mNotifications.size() == 0) {
+ mNewNotification.wait(mMutex);
+ }
+ return getNextNotificationLocked(msg_type, ext1, ext2, ext3);
+}
+
+int NotifierListener::numNotifications() {
+ Mutex::Autolock l(mMutex);
+ return mNotifications.size();
+}
+
+status_t NotifierListener::getNextNotificationLocked(int32_t *msg_type,
+ int32_t *ext1,
+ int32_t *ext2,
+ int32_t *ext3) {
+ *msg_type = mNotifications.begin()->msg_type;
+ *ext1 = mNotifications.begin()->ext1;
+ *ext2 = mNotifications.begin()->ext2;
+ *ext3 = mNotifications.begin()->ext3;
+ mNotifications.erase(mNotifications.begin());
+ return OK;
+}
+
+void NotifierListener::onNotify(int32_t msg_type,
+ int32_t ext1,
+ int32_t ext2,
+ int32_t ext3) {
+ Mutex::Autolock l(mMutex);
+ mNotifications.push_back(Notification(msg_type, ext1, ext2, ext3));
+ mNewNotification.signal();
+}
+
+void NotifierListener::notify_callback_dispatch(int32_t msg_type,
+ int32_t ext1,
+ int32_t ext2,
+ int32_t ext3,
+ void *user) {
+ NotifierListener *me = reinterpret_cast<NotifierListener*>(user);
+ me->onNotify(msg_type, ext1, ext2, ext3);
+}
+
+/**
+ * StreamAdapter
+ */
+
+#ifndef container_of
+#define container_of(ptr, type, member) \
+ (type *)((char*)(ptr) - offsetof(type, member))
+#endif
+
+StreamAdapter::StreamAdapter(sp<IGraphicBufferProducer> consumer):
+ mState(UNINITIALIZED), mDevice(NULL),
+ mId(-1),
+ mWidth(0), mHeight(0), mFormat(0)
+{
+ mConsumerInterface = new Surface(consumer);
+ camera2_stream_ops::dequeue_buffer = dequeue_buffer;
+ camera2_stream_ops::enqueue_buffer = enqueue_buffer;
+ camera2_stream_ops::cancel_buffer = cancel_buffer;
+ camera2_stream_ops::set_crop = set_crop;
+}
+
+StreamAdapter::~StreamAdapter() {
+ disconnect();
+}
+
+status_t StreamAdapter::connectToDevice(camera2_device_t *d,
+ uint32_t width, uint32_t height, int format) {
+ if (mState != UNINITIALIZED) return INVALID_OPERATION;
+ if (d == NULL) {
+ ALOGE("%s: Null device passed to stream adapter", __FUNCTION__);
+ return BAD_VALUE;
+ }
+
+ status_t res;
+
+ mWidth = width;
+ mHeight = height;
+ mFormat = format;
+
+ // Allocate device-side stream interface
+
+ uint32_t id;
+ uint32_t formatActual; // ignored
+ uint32_t usage;
+ uint32_t maxBuffers = 2;
+ res = d->ops->allocate_stream(d,
+ mWidth, mHeight, mFormat, getStreamOps(),
+ &id, &formatActual, &usage, &maxBuffers);
+ if (res != OK) {
+ ALOGE("%s: Device stream allocation failed: %s (%d)",
+ __FUNCTION__, strerror(-res), res);
+ mState = UNINITIALIZED;
+ return res;
+ }
+ mDevice = d;
+
+ mId = id;
+ mUsage = usage;
+ mMaxProducerBuffers = maxBuffers;
+
+ // Configure consumer-side ANativeWindow interface
+
+ res = native_window_api_connect(mConsumerInterface.get(),
+ NATIVE_WINDOW_API_CAMERA);
+ if (res != OK) {
+ ALOGE("%s: Unable to connect to native window for stream %d",
+ __FUNCTION__, mId);
+ mState = ALLOCATED;
+ return res;
+ }
+
+ res = native_window_set_usage(mConsumerInterface.get(), mUsage);
+ if (res != OK) {
+ ALOGE("%s: Unable to configure usage %08x for stream %d",
+ __FUNCTION__, mUsage, mId);
+ mState = CONNECTED;
+ return res;
+ }
+
+ res = native_window_set_buffers_dimensions(mConsumerInterface.get(),
+ mWidth, mHeight);
+ if (res != OK) {
+ ALOGE("%s: Unable to configure buffer dimensions"
+ " %d x %d for stream %d",
+ __FUNCTION__, mWidth, mHeight, mId);
+ mState = CONNECTED;
+ return res;
+ }
+ res = native_window_set_buffers_format(mConsumerInterface.get(),
+ mFormat);
+ if (res != OK) {
+ ALOGE("%s: Unable to configure buffer format"
+ " 0x%x for stream %d",
+ __FUNCTION__, mFormat, mId);
+ mState = CONNECTED;
+ return res;
+ }
+
+ int maxConsumerBuffers;
+ res = mConsumerInterface->query(mConsumerInterface.get(),
+ NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &maxConsumerBuffers);
+ if (res != OK) {
+ ALOGE("%s: Unable to query consumer undequeued"
+ " buffer count for stream %d", __FUNCTION__, mId);
+ mState = CONNECTED;
+ return res;
+ }
+ mMaxConsumerBuffers = maxConsumerBuffers;
+
+ ALOGV("%s: Producer wants %d buffers, consumer wants %d", __FUNCTION__,
+ mMaxProducerBuffers, mMaxConsumerBuffers);
+
+ int totalBuffers = mMaxConsumerBuffers + mMaxProducerBuffers;
+
+ res = native_window_set_buffer_count(mConsumerInterface.get(),
+ totalBuffers);
+ if (res != OK) {
+ ALOGE("%s: Unable to set buffer count for stream %d",
+ __FUNCTION__, mId);
+ mState = CONNECTED;
+ return res;
+ }
+
+ // Register allocated buffers with HAL device
+ buffer_handle_t *buffers = new buffer_handle_t[totalBuffers];
+ ANativeWindowBuffer **anwBuffers = new ANativeWindowBuffer*[totalBuffers];
+ int bufferIdx = 0;
+ for (; bufferIdx < totalBuffers; bufferIdx++) {
+ res = native_window_dequeue_buffer_and_wait(mConsumerInterface.get(),
+ &anwBuffers[bufferIdx]);
+ if (res != OK) {
+ ALOGE("%s: Unable to dequeue buffer %d for initial registration for"
+ "stream %d", __FUNCTION__, bufferIdx, mId);
+ mState = CONNECTED;
+ goto cleanUpBuffers;
+ }
+ buffers[bufferIdx] = anwBuffers[bufferIdx]->handle;
+ }
+
+ res = mDevice->ops->register_stream_buffers(mDevice,
+ mId,
+ totalBuffers,
+ buffers);
+ if (res != OK) {
+ ALOGE("%s: Unable to register buffers with HAL device for stream %d",
+ __FUNCTION__, mId);
+ mState = CONNECTED;
+ } else {
+ mState = ACTIVE;
+ }
+
+cleanUpBuffers:
+ for (int i = 0; i < bufferIdx; i++) {
+ res = mConsumerInterface->cancelBuffer(mConsumerInterface.get(),
+ anwBuffers[i], -1);
+ }
+ delete[] anwBuffers;
+ delete[] buffers;
+
+ return res;
+}
+
+status_t StreamAdapter::disconnect() {
+ status_t res;
+ if (mState >= ALLOCATED) {
+ res = mDevice->ops->release_stream(mDevice, mId);
+ if (res != OK) {
+ ALOGE("%s: Unable to release stream %d",
+ __FUNCTION__, mId);
+ return res;
+ }
+ }
+ if (mState >= CONNECTED) {
+ res = native_window_api_disconnect(mConsumerInterface.get(),
+ NATIVE_WINDOW_API_CAMERA);
+ if (res != OK) {
+ ALOGE("%s: Unable to disconnect stream %d from native window",
+ __FUNCTION__, mId);
+ return res;
+ }
+ }
+ mId = -1;
+ mState = DISCONNECTED;
+ return OK;
+}
+
+int StreamAdapter::getId() {
+ return mId;
+}
+
+const camera2_stream_ops *StreamAdapter::getStreamOps() {
+ return static_cast<camera2_stream_ops *>(this);
+}
+
+ANativeWindow* StreamAdapter::toANW(const camera2_stream_ops_t *w) {
+ return static_cast<const StreamAdapter*>(w)->mConsumerInterface.get();
+}
+
+int StreamAdapter::dequeue_buffer(const camera2_stream_ops_t *w,
+ buffer_handle_t** buffer) {
+ int res;
+ int state = static_cast<const StreamAdapter*>(w)->mState;
+ if (state != ACTIVE) {
+ ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
+ return INVALID_OPERATION;
+ }
+
+ ANativeWindow *a = toANW(w);
+ ANativeWindowBuffer* anb;
+ res = native_window_dequeue_buffer_and_wait(a, &anb);
+ if (res != OK) return res;
+
+ *buffer = &(anb->handle);
+
+ return res;
+}
+
+int StreamAdapter::enqueue_buffer(const camera2_stream_ops_t* w,
+ int64_t timestamp,
+ buffer_handle_t* buffer) {
+ int state = static_cast<const StreamAdapter*>(w)->mState;
+ if (state != ACTIVE) {
+ ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
+ return INVALID_OPERATION;
+ }
+ ANativeWindow *a = toANW(w);
+ status_t err;
+ err = native_window_set_buffers_timestamp(a, timestamp);
+ if (err != OK) return err;
+ return a->queueBuffer(a,
+ container_of(buffer, ANativeWindowBuffer, handle), -1);
+}
+
+int StreamAdapter::cancel_buffer(const camera2_stream_ops_t* w,
+ buffer_handle_t* buffer) {
+ int state = static_cast<const StreamAdapter*>(w)->mState;
+ if (state != ACTIVE) {
+ ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
+ return INVALID_OPERATION;
+ }
+ ANativeWindow *a = toANW(w);
+ return a->cancelBuffer(a,
+ container_of(buffer, ANativeWindowBuffer, handle), -1);
+}
+
+int StreamAdapter::set_crop(const camera2_stream_ops_t* w,
+ int left, int top, int right, int bottom) {
+ int state = static_cast<const StreamAdapter*>(w)->mState;
+ if (state != ACTIVE) {
+ ALOGE("%s: Called when in bad state: %d", __FUNCTION__, state);
+ return INVALID_OPERATION;
+ }
+ ANativeWindow *a = toANW(w);
+ android_native_rect_t crop = { left, top, right, bottom };
+ return native_window_set_crop(a, &crop);
+}
+
+/**
+ * FrameWaiter
+ */
+
+FrameWaiter::FrameWaiter():
+ mPendingFrames(0) {
+}
+
+status_t FrameWaiter::waitForFrame(nsecs_t timeout) {
+ status_t res;
+ Mutex::Autolock lock(mMutex);
+ while (mPendingFrames == 0) {
+ res = mCondition.waitRelative(mMutex, timeout);
+ if (res != OK) return res;
+ }
+ mPendingFrames--;
+ return OK;
+}
+
+void FrameWaiter::onFrameAvailable(const BufferItem& /* item */) {
+ Mutex::Autolock lock(mMutex);
+ mPendingFrames++;
+ mCondition.signal();
+}
+
+int HWModuleHelpers::closeModule(void *dso) {
+ int status;
+ if (!dso) {
+ return -EINVAL;
+ }
+
+ status = dlclose(dso);
+ if (status != 0) {
+ char const *err_str = dlerror();
+ ALOGE("%s dlclose failed, error: %s", __func__, err_str ?: "unknown");
+ }
+
+ return status;
+}
+
+} // namespace tests
+} // namespace camera2
+} // namespace android
diff --git a/libhardware/tests/camera2/camera2_utils.h b/libhardware/tests/camera2/camera2_utils.h
new file mode 100644
index 0000000..274ee76
--- /dev/null
+++ b/libhardware/tests/camera2/camera2_utils.h
@@ -0,0 +1,250 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_CAMERA2_TESTS_UTILS__
+#define __ANDROID_HAL_CAMERA2_TESTS_UTILS__
+
+// Utility classes for camera2 HAL testing
+
+#include <system/camera_metadata.h>
+#include <hardware/camera2.h>
+
+#include <gui/Surface.h>
+#include <gui/CpuConsumer.h>
+
+#include <utils/List.h>
+#include <utils/Mutex.h>
+#include <utils/Condition.h>
+
+namespace android {
+namespace camera2 {
+namespace tests {
+
+/**
+ * Queue class for both sending requests to a camera2 device, and for receiving
+ * frames from a camera2 device.
+ */
+class MetadataQueue: public camera2_request_queue_src_ops_t,
+ public camera2_frame_queue_dst_ops_t {
+ public:
+ MetadataQueue();
+ ~MetadataQueue();
+
+ // Interface to camera2 HAL device, either for requests (device is consumer)
+ // or for frames (device is producer)
+ const camera2_request_queue_src_ops_t* getToConsumerInterface();
+ void setFromConsumerInterface(camera2_device_t *d);
+
+ const camera2_frame_queue_dst_ops_t* getToProducerInterface();
+
+ // Real interfaces. On enqueue, queue takes ownership of buffer pointer
+ // On dequeue, user takes ownership of buffer pointer.
+ status_t enqueue(camera_metadata_t *buf);
+ status_t dequeue(camera_metadata_t **buf, bool incrementCount = true);
+ int getBufferCount();
+ status_t waitForBuffer(nsecs_t timeout);
+
+ // Set repeating buffer(s); if the queue is empty on a dequeue call, the
+ // queue copies the contents of the stream slot into the queue, and then
+ // dequeues the first new entry.
+ status_t setStreamSlot(camera_metadata_t *buf);
+ status_t setStreamSlot(const List<camera_metadata_t*> &bufs);
+
+ private:
+ status_t freeBuffers(List<camera_metadata_t*>::iterator start,
+ const List<camera_metadata_t*>::iterator& end);
+
+ camera2_device_t *mDevice;
+
+ Mutex mMutex;
+ Condition notEmpty;
+
+ int mFrameCount;
+
+ int mCount;
+ List<camera_metadata_t*> mEntries;
+ int mStreamSlotCount;
+ List<camera_metadata_t*> mStreamSlot;
+
+ bool mSignalConsumer;
+
+ static MetadataQueue* getInstance(const camera2_frame_queue_dst_ops_t *q);
+ static MetadataQueue* getInstance(const camera2_request_queue_src_ops_t *q);
+
+ static int consumer_buffer_count(const camera2_request_queue_src_ops_t *q);
+
+ static int consumer_dequeue(const camera2_request_queue_src_ops_t *q,
+ camera_metadata_t **buffer);
+
+ static int consumer_free(const camera2_request_queue_src_ops_t *q,
+ camera_metadata_t *old_buffer);
+
+ static int producer_dequeue(const camera2_frame_queue_dst_ops_t *q,
+ size_t entries, size_t bytes,
+ camera_metadata_t **buffer);
+
+ static int producer_cancel(const camera2_frame_queue_dst_ops_t *q,
+ camera_metadata_t *old_buffer);
+
+ static int producer_enqueue(const camera2_frame_queue_dst_ops_t *q,
+ camera_metadata_t *filled_buffer);
+
+};
+
+/**
+ * Basic class to receive and queue up notifications from the camera device
+ */
+
+class NotifierListener {
+ public:
+
+ NotifierListener();
+
+ status_t getNotificationsFrom(camera2_device *dev);
+
+ status_t getNextNotification(int32_t *msg_type, int32_t *ext1,
+ int32_t *ext2, int32_t *ext3);
+
+ status_t waitForNotification(int32_t *msg_type, int32_t *ext1,
+ int32_t *ext2, int32_t *ext3);
+
+ int numNotifications();
+
+ private:
+
+ status_t getNextNotificationLocked(int32_t *msg_type,
+ int32_t *ext1, int32_t *ext2, int32_t *ext3);
+
+ struct Notification {
+ Notification(int32_t type, int32_t e1, int32_t e2, int32_t e3):
+ msg_type(type),
+ ext1(e1),
+ ext2(e2),
+ ext3(e3)
+ {}
+
+ int32_t msg_type;
+ int32_t ext1;
+ int32_t ext2;
+ int32_t ext3;
+ };
+
+ List<Notification> mNotifications;
+
+ Mutex mMutex;
+ Condition mNewNotification;
+
+ void onNotify(int32_t msg_type,
+ int32_t ext1,
+ int32_t ext2,
+ int32_t ext3);
+
+ static void notify_callback_dispatch(int32_t msg_type,
+ int32_t ext1,
+ int32_t ext2,
+ int32_t ext3,
+ void *user);
+
+};
+
+/**
+ * Adapter from an IGraphicBufferProducer interface to camera2 device stream ops.
+ * Also takes care of allocating/deallocating stream in device interface
+ */
+class StreamAdapter: public camera2_stream_ops {
+ public:
+ explicit StreamAdapter(sp<IGraphicBufferProducer> consumer);
+
+ ~StreamAdapter();
+
+ status_t connectToDevice(camera2_device_t *d,
+ uint32_t width, uint32_t height, int format);
+
+ status_t disconnect();
+
+ // Get stream ID. Only valid after a successful connectToDevice call.
+ int getId();
+
+ private:
+ enum {
+ ERROR = -1,
+ DISCONNECTED = 0,
+ UNINITIALIZED,
+ ALLOCATED,
+ CONNECTED,
+ ACTIVE
+ } mState;
+
+ sp<ANativeWindow> mConsumerInterface;
+ camera2_device_t *mDevice;
+
+ uint32_t mId;
+ uint32_t mWidth;
+ uint32_t mHeight;
+ uint32_t mFormat;
+ uint32_t mUsage;
+ uint32_t mMaxProducerBuffers;
+ uint32_t mMaxConsumerBuffers;
+
+ const camera2_stream_ops *getStreamOps();
+
+ static ANativeWindow* toANW(const camera2_stream_ops_t *w);
+
+ static int dequeue_buffer(const camera2_stream_ops_t *w,
+ buffer_handle_t** buffer);
+
+ static int enqueue_buffer(const camera2_stream_ops_t* w,
+ int64_t timestamp,
+ buffer_handle_t* buffer);
+
+ static int cancel_buffer(const camera2_stream_ops_t* w,
+ buffer_handle_t* buffer);
+
+ static int set_crop(const camera2_stream_ops_t* w,
+ int left, int top, int right, int bottom);
+
+};
+
+/**
+ * Simple class to wait on the CpuConsumer to have a frame available
+ */
+class FrameWaiter : public CpuConsumer::FrameAvailableListener {
+ public:
+ FrameWaiter();
+
+ /**
+ * Wait for max timeout nanoseconds for a new frame. Returns
+ * OK if a frame is available, TIMED_OUT if the timeout was reached.
+ */
+ status_t waitForFrame(nsecs_t timeout);
+
+ virtual void onFrameAvailable(const BufferItem& item);
+
+ int mPendingFrames;
+ Mutex mMutex;
+ Condition mCondition;
+};
+
+struct HWModuleHelpers {
+ /* attempt to unload the library with dlclose */
+ static int closeModule(void* dso);
+};
+
+}
+}
+}
+
+#endif
diff --git a/libhardware/tests/camera2/main.cpp b/libhardware/tests/camera2/main.cpp
new file mode 100644
index 0000000..e0ebbe9
--- /dev/null
+++ b/libhardware/tests/camera2/main.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+#include "TestForkerEventListener.h"
+#include "TestSettings.h"
+
+using android::camera2::tests::TestForkerEventListener;
+using android::camera2::tests::TestSettings;
+
+int main(int argc, char **argv) {
+
+ bool printUsage = !TestSettings::ParseArgs(argc, argv);
+
+ ::testing::InitGoogleTest(&argc, argv);
+
+ if (printUsage) {
+ TestSettings::PrintUsage();
+ return 0;
+ }
+
+ // Gets hold of the event listener list.
+ ::testing::TestEventListeners& listeners =
+ ::testing::UnitTest::GetInstance()->listeners();
+ // Adds a listener to the end. Google Test takes the ownership.
+ listeners.Append(new TestForkerEventListener());
+
+ int ret = RUN_ALL_TESTS();
+
+ return ret;
+}
diff --git a/libhardware/tests/camera3/Android.mk b/libhardware/tests/camera3/Android.mk
new file mode 100644
index 0000000..652851a
--- /dev/null
+++ b/libhardware/tests/camera3/Android.mk
@@ -0,0 +1,20 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ camera3tests.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+ liblog \
+ libhardware \
+ libcamera_metadata \
+
+LOCAL_C_INCLUDES += \
+ system/media/camera/include \
+
+LOCAL_CFLAGS += -Wall -Wextra
+
+LOCAL_MODULE:= camera3_tests
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_NATIVE_TEST)
diff --git a/libhardware/tests/camera3/camera3test_fixtures.h b/libhardware/tests/camera3/camera3test_fixtures.h
new file mode 100644
index 0000000..17e3d45
--- /dev/null
+++ b/libhardware/tests/camera3/camera3test_fixtures.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_CAMERA3_TEST_COMMON__
+#define __ANDROID_HAL_CAMERA3_TEST_COMMON__
+
+#include <gtest/gtest.h>
+#include <hardware/hardware.h>
+#include <hardware/camera3.h>
+
+namespace tests {
+
+static const int kMmaxCams = 2;
+static const uint16_t kVersion3_0 = HARDWARE_MODULE_API_VERSION(3, 0);
+
+class Camera3Module : public testing::Test {
+ public:
+ Camera3Module() :
+ num_cams_(0),
+ cam_module_(NULL) {}
+ ~Camera3Module() {}
+ protected:
+ virtual void SetUp() {
+ const hw_module_t *hw_module = NULL;
+ ASSERT_EQ(0, hw_get_module(CAMERA_HARDWARE_MODULE_ID, &hw_module))
+ << "Can't get camera module";
+ ASSERT_TRUE(NULL != hw_module)
+ << "hw_get_module didn't return a valid camera module";
+
+ cam_module_ = reinterpret_cast<const camera_module_t*>(hw_module);
+ ASSERT_TRUE(NULL != cam_module_->get_number_of_cameras)
+ << "get_number_of_cameras is not implemented";
+ num_cams_ = cam_module_->get_number_of_cameras();
+ }
+ int num_cams() { return num_cams_; }
+ const camera_module_t * cam_module() { return cam_module_; }
+ private:
+ int num_cams_;
+ const camera_module_t *cam_module_;
+};
+
+class Camera3Device : public Camera3Module {
+ public:
+ Camera3Device() :
+ cam_device_(NULL) {}
+ ~Camera3Device() {}
+ protected:
+ virtual void SetUp() {
+ Camera3Module::SetUp();
+ hw_device_t *device = NULL;
+ ASSERT_TRUE(NULL != cam_module()->common.methods->open)
+ << "Camera open() is unimplemented";
+ ASSERT_EQ(0, cam_module()->common.methods->open(
+ (const hw_module_t*)cam_module(), "0", &device))
+ << "Can't open camera device";
+ ASSERT_TRUE(NULL != device)
+ << "Camera open() returned a NULL device";
+ ASSERT_LE(kVersion3_0, device->version)
+ << "The device does not support HAL3";
+ cam_device_ = reinterpret_cast<camera3_device_t*>(device);
+ }
+ camera3_device_t* cam_device() { return cam_device_; }
+ private:
+ camera3_device *cam_device_;
+};
+
+} // namespace tests
+
+#endif // __ANDROID_HAL_CAMERA3_TEST_COMMON__
diff --git a/libhardware/tests/camera3/camera3tests.cpp b/libhardware/tests/camera3/camera3tests.cpp
new file mode 100644
index 0000000..5dbe588
--- /dev/null
+++ b/libhardware/tests/camera3/camera3tests.cpp
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+#include "camera3test_fixtures.h"
+
+namespace tests {
+
+TEST_F(Camera3Module, NumberOfCameras) {
+ ASSERT_LT(0, num_cams()) << "No cameras found";
+ ASSERT_GE(kMmaxCams, num_cams()) << "Too many cameras found";
+}
+
+TEST_F(Camera3Module, IsActiveArraySizeSubsetPixelArraySize) {
+ for (int i = 0; i < num_cams(); ++i) {
+ ASSERT_TRUE(NULL != cam_module()->get_camera_info)
+ << "get_camera_info is not implemented";
+
+ camera_info info;
+ ASSERT_EQ(0, cam_module()->get_camera_info(i, &info))
+ << "Can't get camera info for" << i;
+
+ camera_metadata_entry entry;
+ ASSERT_EQ(0, find_camera_metadata_entry(
+ const_cast<camera_metadata_t*>(
+ info.static_camera_characteristics),
+ ANDROID_SENSOR_INFO_PIXEL_ARRAY_SIZE, &entry))
+ << "Can't find the sensor pixel array size.";
+ int pixel_array_w = entry.data.i32[0];
+ int pixel_array_h = entry.data.i32[1];
+
+ ASSERT_EQ(0, find_camera_metadata_entry(
+ const_cast<camera_metadata_t*>(
+ info.static_camera_characteristics),
+ ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE, &entry))
+ << "Can't find the sensor active array size.";
+ int active_array_w = entry.data.i32[0];
+ int active_array_h = entry.data.i32[1];
+
+ EXPECT_LE(active_array_h, pixel_array_h);
+ EXPECT_LE(active_array_w, pixel_array_w);
+ }
+}
+
+TEST_F(Camera3Device, DefaultSettingsStillCaptureHasAndroidControlMode) {
+ ASSERT_TRUE(NULL != cam_device()->ops) << "Camera device ops are NULL";
+ const camera_metadata_t *default_settings =
+ cam_device()->ops->construct_default_request_settings(cam_device(),
+ CAMERA3_TEMPLATE_STILL_CAPTURE);
+ ASSERT_TRUE(NULL != default_settings) << "Camera default settings are NULL";
+ camera_metadata_entry entry;
+ ASSERT_EQ(0, find_camera_metadata_entry(
+ const_cast<camera_metadata_t*>(default_settings),
+ ANDROID_CONTROL_MODE, &entry))
+ << "Can't find ANDROID_CONTROL_MODE in default settings.";
+}
+
+} // namespace tests
diff --git a/libhardware/tests/fingerprint/Android.bp b/libhardware/tests/fingerprint/Android.bp
new file mode 100644
index 0000000..7de3dee
--- /dev/null
+++ b/libhardware/tests/fingerprint/Android.bp
@@ -0,0 +1,14 @@
+cc_test {
+ name: "fingerprint_tests",
+ srcs: ["fingerprint_tests.cpp"],
+
+ shared_libs: [
+ "liblog",
+ "libhardware",
+ ],
+
+ cflags: [
+ "-Wall",
+ "-Wextra",
+ ],
+}
diff --git a/libhardware/tests/fingerprint/fingerprint_test_fixtures.h b/libhardware/tests/fingerprint/fingerprint_test_fixtures.h
new file mode 100644
index 0000000..a526203
--- /dev/null
+++ b/libhardware/tests/fingerprint/fingerprint_test_fixtures.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ANDROID_HAL_FINGERPRINT_TEST_COMMON__
+#define __ANDROID_HAL_FINGERPRINT_TEST_COMMON__
+
+#include <gtest/gtest.h>
+#include <hardware/hardware.h>
+#include <hardware/fingerprint.h>
+
+namespace tests {
+
+static const uint16_t kVersion = HARDWARE_MODULE_API_VERSION(1, 0);
+
+class FingerprintModule : public testing::Test {
+ public:
+ FingerprintModule() :
+ fp_module_(NULL) {}
+ ~FingerprintModule() {}
+ protected:
+ virtual void SetUp() {
+ const hw_module_t *hw_module = NULL;
+ ASSERT_EQ(0, hw_get_module(FINGERPRINT_HARDWARE_MODULE_ID, &hw_module))
+ << "Can't get fingerprint module";
+ ASSERT_TRUE(NULL != hw_module)
+ << "hw_get_module didn't return a valid fingerprint module";
+
+ fp_module_ = reinterpret_cast<const fingerprint_module_t*>(hw_module);
+ }
+ const fingerprint_module_t* fp_module() { return fp_module_; }
+ private:
+ const fingerprint_module_t *fp_module_;
+};
+
+class FingerprintDevice : public FingerprintModule {
+ public:
+ FingerprintDevice() :
+ fp_device_(NULL) {}
+ ~FingerprintDevice() {}
+ protected:
+ virtual void SetUp() {
+ FingerprintModule::SetUp();
+ hw_device_t *device = NULL;
+ ASSERT_TRUE(NULL != fp_module()->common.methods->open)
+ << "Fingerprint open() is unimplemented";
+ ASSERT_EQ(0, fp_module()->common.methods->open(
+ (const hw_module_t*)fp_module(), NULL, &device))
+ << "Can't open fingerprint device";
+ ASSERT_TRUE(NULL != device)
+ << "Fingerprint open() returned a NULL device";
+ ASSERT_EQ(kVersion, device->version)
+ << "Unsupported version";
+ fp_device_ = reinterpret_cast<fingerprint_device_t*>(device);
+ }
+ fingerprint_device_t* fp_device() { return fp_device_; }
+ private:
+ fingerprint_device_t *fp_device_;
+};
+
+} // namespace tests
+
+#endif // __ANDROID_HAL_FINGERPRINT_TEST_COMMON__
diff --git a/libhardware/tests/fingerprint/fingerprint_tests.cpp b/libhardware/tests/fingerprint/fingerprint_tests.cpp
new file mode 100644
index 0000000..dbb248f
--- /dev/null
+++ b/libhardware/tests/fingerprint/fingerprint_tests.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <gtest/gtest.h>
+#include "fingerprint_test_fixtures.h"
+
+namespace tests {
+
+TEST_F(FingerprintDevice, isThereEnroll) {
+ ASSERT_TRUE(NULL != fp_device()->enroll)
+ << "enroll() function is not implemented";
+}
+
+TEST_F(FingerprintDevice, isTherePreEnroll) {
+ ASSERT_TRUE(NULL != fp_device()->pre_enroll)
+ << "pre_enroll() function is not implemented";
+}
+
+TEST_F(FingerprintDevice, isThereGetAuthenticatorId) {
+ ASSERT_TRUE(NULL != fp_device()->get_authenticator_id)
+ << "get_authenticator_id() function is not implemented";
+}
+
+TEST_F(FingerprintDevice, isThereCancel) {
+ ASSERT_TRUE(NULL != fp_device()->cancel)
+ << "cancel() function is not implemented";
+}
+
+TEST_F(FingerprintDevice, isThereRemove) {
+ ASSERT_TRUE(NULL != fp_device()->remove)
+ << "remove() function is not implemented";
+}
+
+TEST_F(FingerprintDevice, isThereAuthenticate) {
+ ASSERT_TRUE(NULL != fp_device()->authenticate)
+ << "authenticate() function is not implemented";
+}
+
+TEST_F(FingerprintDevice, isThereSetActiveGroup) {
+ ASSERT_TRUE(NULL != fp_device()->set_active_group)
+ << "set_active_group() function is not implemented";
+}
+
+TEST_F(FingerprintDevice, isThereSetNotify) {
+ ASSERT_TRUE(NULL != fp_device()->set_notify)
+ << "set_notify() function is not implemented";
+}
+
+} // namespace tests
diff --git a/libhardware/tests/hardware/Android.bp b/libhardware/tests/hardware/Android.bp
new file mode 100644
index 0000000..668e28f
--- /dev/null
+++ b/libhardware/tests/hardware/Android.bp
@@ -0,0 +1,15 @@
+cc_library_static {
+ name: "static-hal-check",
+ srcs: [
+ "struct-size.cpp",
+ "struct-offset.cpp",
+ "struct-last.cpp",
+ ],
+ shared_libs: ["libhardware"],
+ cflags: [
+ "-std=gnu++11",
+ "-O0",
+ ],
+
+ include_dirs: ["system/media/camera/include"],
+}
diff --git a/libhardware/tests/hardware/struct-last.cpp b/libhardware/tests/hardware/struct-last.cpp
new file mode 100644
index 0000000..44a7b2d
--- /dev/null
+++ b/libhardware/tests/hardware/struct-last.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstddef>
+#include <system/window.h>
+#include <hardware/hardware.h>
+#include <hardware/sensors.h>
+#include <hardware/fb.h>
+#include <hardware/hwcomposer.h>
+#include <hardware/gralloc.h>
+#include <hardware/consumerir.h>
+#include <hardware/camera_common.h>
+#include <hardware/camera3.h>
+
+#define GET_PADDING(align, size) (((align) - ((size) % (align))) % (align))
+
+#define CHECK_LAST_MEMBER(type, member) \
+do { \
+static constexpr size_t calc_size = offsetof(type, member) + sizeof(((type *)0)->member); \
+static_assert(sizeof(type) == calc_size + GET_PADDING(alignof(type), calc_size), \
+"" #member " is not the last element of " #type); \
+} while (0)
+
+void CheckSizes(void) {
+ //Types defined in hardware.h
+ CHECK_LAST_MEMBER(hw_module_t, reserved);
+ CHECK_LAST_MEMBER(hw_device_t, close);
+
+ //Types defined in sensors.h
+ CHECK_LAST_MEMBER(sensors_vec_t, reserved);
+ CHECK_LAST_MEMBER(sensors_event_t, reserved1);
+ CHECK_LAST_MEMBER(struct sensor_t, reserved);
+ CHECK_LAST_MEMBER(sensors_poll_device_1_t, reserved_procs);
+
+ //Types defined in fb.h
+ CHECK_LAST_MEMBER(framebuffer_device_t, reserved_proc);
+
+ //Types defined in hwcomposer.h
+ CHECK_LAST_MEMBER(hwc_layer_1_t, reserved);
+ CHECK_LAST_MEMBER(hwc_composer_device_1_t, reserved_proc);
+
+ //Types defined in gralloc.h
+ CHECK_LAST_MEMBER(gralloc_module_t, reserved_proc);
+ CHECK_LAST_MEMBER(alloc_device_t, reserved_proc);
+
+ //Types defined in consumerir.h
+ CHECK_LAST_MEMBER(consumerir_device_t, reserved);
+
+ //Types defined in camera_common.h
+ CHECK_LAST_MEMBER(vendor_tag_ops_t, reserved);
+ CHECK_LAST_MEMBER(camera_module_t, reserved);
+
+ //Types defined in camera3.h
+ CHECK_LAST_MEMBER(camera3_device_ops_t, reserved);
+}
+
diff --git a/libhardware/tests/hardware/struct-offset.cpp b/libhardware/tests/hardware/struct-offset.cpp
new file mode 100644
index 0000000..10c0895
--- /dev/null
+++ b/libhardware/tests/hardware/struct-offset.cpp
@@ -0,0 +1,231 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstddef>
+#include <system/window.h>
+#include <hardware/hardware.h>
+#include <hardware/sensors.h>
+#include <hardware/fb.h>
+#include <hardware/hwcomposer.h>
+#include <hardware/gralloc.h>
+#include <hardware/consumerir.h>
+#include <hardware/camera_common.h>
+#include <hardware/camera3.h>
+
+//Ideally this would print type.member instead we need to rely on the line number from the output
+template <size_t actual, size_t expected> void check_member(void) {
+ static_assert(actual == expected, "");
+}
+
+#ifdef __LP64__
+#define CHECK_MEMBER_AT(type, member, off32, off64) \
+ check_member<offsetof(type, member), off64>()
+#else
+#define CHECK_MEMBER_AT(type, member, off32, off64) \
+ check_member<offsetof(type, member), off32>()
+#endif
+
+void CheckOffsets(void) {
+ //Types defined in hardware.h
+ CHECK_MEMBER_AT(hw_module_t, tag, 0, 0);
+ CHECK_MEMBER_AT(hw_module_t, module_api_version, 4, 4);
+ CHECK_MEMBER_AT(hw_module_t, hal_api_version, 6, 6);
+ CHECK_MEMBER_AT(hw_module_t, id, 8, 8);
+ CHECK_MEMBER_AT(hw_module_t, name, 12, 16);
+ CHECK_MEMBER_AT(hw_module_t, author, 16, 24);
+ CHECK_MEMBER_AT(hw_module_t, methods, 20, 32);
+ CHECK_MEMBER_AT(hw_module_t, dso, 24, 40);
+ CHECK_MEMBER_AT(hw_module_t, reserved, 28, 48);
+
+ CHECK_MEMBER_AT(hw_device_t, tag, 0, 0);
+ CHECK_MEMBER_AT(hw_device_t, version, 4, 4);
+ CHECK_MEMBER_AT(hw_device_t, module, 8, 8);
+ CHECK_MEMBER_AT(hw_device_t, reserved, 12, 16);
+ CHECK_MEMBER_AT(hw_device_t, close, 60, 112);
+
+ //Types defined in sensors.h
+ CHECK_MEMBER_AT(sensors_vec_t, v, 0, 0);
+ CHECK_MEMBER_AT(sensors_vec_t, x, 0, 0);
+ CHECK_MEMBER_AT(sensors_vec_t, y, 4, 4);
+ CHECK_MEMBER_AT(sensors_vec_t, z, 8, 8);
+ CHECK_MEMBER_AT(sensors_vec_t, azimuth, 0, 0);
+ CHECK_MEMBER_AT(sensors_vec_t, pitch, 4, 4);
+ CHECK_MEMBER_AT(sensors_vec_t, roll, 8, 8);
+ CHECK_MEMBER_AT(sensors_vec_t, status, 12, 12);
+ CHECK_MEMBER_AT(sensors_vec_t, reserved, 13, 13);
+
+ CHECK_MEMBER_AT(sensors_event_t, version, 0, 0);
+ CHECK_MEMBER_AT(sensors_event_t, sensor, 4, 4);
+ CHECK_MEMBER_AT(sensors_event_t, type, 8, 8);
+ CHECK_MEMBER_AT(sensors_event_t, reserved0, 12, 12);
+ CHECK_MEMBER_AT(sensors_event_t, timestamp, 16, 16);
+ CHECK_MEMBER_AT(sensors_event_t, data, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, acceleration, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, magnetic, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, orientation, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, gyro, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, temperature, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, distance, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, light, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, pressure, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, relative_humidity, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, uncalibrated_gyro, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, uncalibrated_magnetic, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, meta_data, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, u64, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, u64.data, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, u64.step_counter, 24, 24);
+ CHECK_MEMBER_AT(sensors_event_t, flags, 88, 88);
+ CHECK_MEMBER_AT(sensors_event_t, reserved1, 92, 92);
+
+ CHECK_MEMBER_AT(struct sensor_t, name, 0, 0);
+ CHECK_MEMBER_AT(struct sensor_t, vendor, 4, 8);
+ CHECK_MEMBER_AT(struct sensor_t, version, 8, 16);
+ CHECK_MEMBER_AT(struct sensor_t, handle, 12, 20);
+ CHECK_MEMBER_AT(struct sensor_t, type, 16, 24);
+ CHECK_MEMBER_AT(struct sensor_t, maxRange, 20, 28);
+ CHECK_MEMBER_AT(struct sensor_t, resolution, 24, 32);
+ CHECK_MEMBER_AT(struct sensor_t, power, 28, 36);
+ CHECK_MEMBER_AT(struct sensor_t, minDelay, 32, 40);
+ CHECK_MEMBER_AT(struct sensor_t, fifoReservedEventCount, 36, 44);
+ CHECK_MEMBER_AT(struct sensor_t, fifoMaxEventCount, 40, 48);
+ CHECK_MEMBER_AT(struct sensor_t, stringType, 44, 56);
+ CHECK_MEMBER_AT(struct sensor_t, requiredPermission, 48, 64);
+ CHECK_MEMBER_AT(struct sensor_t, maxDelay, 52, 72);
+ CHECK_MEMBER_AT(struct sensor_t, flags, 56, 80);
+ CHECK_MEMBER_AT(struct sensor_t, reserved, 60, 88);
+
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, v0, 0, 0);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, common, 0, 0);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, activate, 64, 120);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, setDelay, 68, 128);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, poll, 72, 136);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, batch, 76, 144);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, flush, 80, 152);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, inject_sensor_data, 84, 160);
+ CHECK_MEMBER_AT(sensors_poll_device_1_t, reserved_procs, 88, 168);
+
+ //Types defined in fb.h
+ CHECK_MEMBER_AT(framebuffer_device_t, common, 0, 0);
+ CHECK_MEMBER_AT(framebuffer_device_t, flags, 64, 120);
+ CHECK_MEMBER_AT(framebuffer_device_t, width, 68, 124);
+ CHECK_MEMBER_AT(framebuffer_device_t, height, 72, 128);
+ CHECK_MEMBER_AT(framebuffer_device_t, stride, 76, 132);
+ CHECK_MEMBER_AT(framebuffer_device_t, format, 80, 136);
+ CHECK_MEMBER_AT(framebuffer_device_t, xdpi, 84, 140);
+ CHECK_MEMBER_AT(framebuffer_device_t, ydpi, 88, 144);
+ CHECK_MEMBER_AT(framebuffer_device_t, fps, 92, 148);
+ CHECK_MEMBER_AT(framebuffer_device_t, minSwapInterval, 96, 152);
+ CHECK_MEMBER_AT(framebuffer_device_t, maxSwapInterval, 100, 156);
+ CHECK_MEMBER_AT(framebuffer_device_t, numFramebuffers, 104, 160);
+ CHECK_MEMBER_AT(framebuffer_device_t, reserved, 108, 164);
+ CHECK_MEMBER_AT(framebuffer_device_t, setSwapInterval, 136, 192);
+ CHECK_MEMBER_AT(framebuffer_device_t, setUpdateRect, 140, 200);
+ CHECK_MEMBER_AT(framebuffer_device_t, post, 144, 208);
+ CHECK_MEMBER_AT(framebuffer_device_t, compositionComplete, 148, 216);
+ CHECK_MEMBER_AT(framebuffer_device_t, dump, 152, 224);
+ CHECK_MEMBER_AT(framebuffer_device_t, enableScreen, 156, 232);
+ CHECK_MEMBER_AT(framebuffer_device_t, reserved_proc, 160, 240);
+
+ //Types defined in hwcomposer.h
+ CHECK_MEMBER_AT(hwc_layer_1_t, compositionType, 0, 0);
+ CHECK_MEMBER_AT(hwc_layer_1_t, hints, 4, 4);
+ CHECK_MEMBER_AT(hwc_layer_1_t, flags, 8, 8);
+ CHECK_MEMBER_AT(hwc_layer_1_t, backgroundColor, 12, 16);
+ CHECK_MEMBER_AT(hwc_layer_1_t, handle, 12, 16);
+ CHECK_MEMBER_AT(hwc_layer_1_t, transform, 16, 24);
+ CHECK_MEMBER_AT(hwc_layer_1_t, blending, 20, 28);
+ CHECK_MEMBER_AT(hwc_layer_1_t, sourceCropi, 24, 32);
+ CHECK_MEMBER_AT(hwc_layer_1_t, sourceCrop, 24, 32);
+ CHECK_MEMBER_AT(hwc_layer_1_t, sourceCropf, 24, 32);
+ CHECK_MEMBER_AT(hwc_layer_1_t, displayFrame, 40, 48);
+ CHECK_MEMBER_AT(hwc_layer_1_t, visibleRegionScreen, 56, 64);
+ CHECK_MEMBER_AT(hwc_layer_1_t, acquireFenceFd, 64, 80);
+ CHECK_MEMBER_AT(hwc_layer_1_t, releaseFenceFd, 68, 84);
+ CHECK_MEMBER_AT(hwc_layer_1_t, planeAlpha, 72, 88);
+ CHECK_MEMBER_AT(hwc_layer_1_t, _pad, 73, 89);
+
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, common, 0, 0);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, prepare, 64, 120);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, set, 68, 128);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, eventControl, 72, 136);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, blank, 76, 144);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, query, 80, 152);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, registerProcs, 84, 160);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, dump, 88, 168);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, getDisplayConfigs, 92, 176);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, getDisplayAttributes, 96, 184);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, getActiveConfig, 100, 192);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, setActiveConfig, 104, 200);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, setCursorPositionAsync, 108, 208);
+ CHECK_MEMBER_AT(hwc_composer_device_1_t, reserved_proc, 112, 216);
+
+ //Types defined in gralloc.h
+ CHECK_MEMBER_AT(gralloc_module_t, common, 0, 0);
+ CHECK_MEMBER_AT(gralloc_module_t, registerBuffer, 128, 248);
+ CHECK_MEMBER_AT(gralloc_module_t, unregisterBuffer, 132, 256);
+ CHECK_MEMBER_AT(gralloc_module_t, lock, 136, 264);
+ CHECK_MEMBER_AT(gralloc_module_t, unlock, 140, 272);
+ CHECK_MEMBER_AT(gralloc_module_t, perform, 144, 280);
+ CHECK_MEMBER_AT(gralloc_module_t, lock_ycbcr, 148, 288);
+ CHECK_MEMBER_AT(gralloc_module_t, lockAsync, 152, 296);
+ CHECK_MEMBER_AT(gralloc_module_t, unlockAsync, 156, 304);
+ CHECK_MEMBER_AT(gralloc_module_t, lockAsync_ycbcr, 160, 312);
+ CHECK_MEMBER_AT(gralloc_module_t, reserved_proc, 164, 320);
+
+ CHECK_MEMBER_AT(alloc_device_t, common, 0, 0);
+ CHECK_MEMBER_AT(alloc_device_t, alloc, 64, 120);
+ CHECK_MEMBER_AT(alloc_device_t, free, 68, 128);
+ CHECK_MEMBER_AT(alloc_device_t, dump, 72, 136);
+ CHECK_MEMBER_AT(alloc_device_t, reserved_proc, 76, 144);
+
+ //Types defined in consumerir.h
+ CHECK_MEMBER_AT(consumerir_device_t, common, 0, 0);
+ CHECK_MEMBER_AT(consumerir_device_t, transmit, 64, 120);
+ CHECK_MEMBER_AT(consumerir_device_t, get_num_carrier_freqs, 68, 128);
+ CHECK_MEMBER_AT(consumerir_device_t, get_carrier_freqs, 72, 136);
+ CHECK_MEMBER_AT(consumerir_device_t, reserved, 76, 144);
+
+ //Types defined in camera_common.h
+ CHECK_MEMBER_AT(vendor_tag_ops_t, get_tag_count, 0, 0);
+ CHECK_MEMBER_AT(vendor_tag_ops_t, get_all_tags, 4, 8);
+ CHECK_MEMBER_AT(vendor_tag_ops_t, get_section_name, 8, 16);
+ CHECK_MEMBER_AT(vendor_tag_ops_t, get_tag_name, 12, 24);
+ CHECK_MEMBER_AT(vendor_tag_ops_t, get_tag_type, 16, 32);
+ CHECK_MEMBER_AT(vendor_tag_ops_t, reserved, 20, 40);
+
+ CHECK_MEMBER_AT(camera_module_t, common, 0, 0);
+ CHECK_MEMBER_AT(camera_module_t, get_number_of_cameras, 128, 248);
+ CHECK_MEMBER_AT(camera_module_t, get_camera_info, 132, 256);
+ CHECK_MEMBER_AT(camera_module_t, set_callbacks, 136, 264);
+ CHECK_MEMBER_AT(camera_module_t, get_vendor_tag_ops, 140, 272);
+ CHECK_MEMBER_AT(camera_module_t, open_legacy, 144, 280);
+ CHECK_MEMBER_AT(camera_module_t, set_torch_mode, 148, 288);
+ CHECK_MEMBER_AT(camera_module_t, init, 152, 296);
+ CHECK_MEMBER_AT(camera_module_t, reserved, 156, 304);
+
+ //Types defined in camera3.h
+ CHECK_MEMBER_AT(camera3_device_ops_t, initialize, 0, 0);
+ CHECK_MEMBER_AT(camera3_device_ops_t, configure_streams, 4, 8);
+ CHECK_MEMBER_AT(camera3_device_ops_t, register_stream_buffers, 8, 16);
+ CHECK_MEMBER_AT(camera3_device_ops_t, construct_default_request_settings, 12, 24);
+ CHECK_MEMBER_AT(camera3_device_ops_t, process_capture_request, 16, 32);
+ CHECK_MEMBER_AT(camera3_device_ops_t, get_metadata_vendor_tag_ops, 20, 40);
+ CHECK_MEMBER_AT(camera3_device_ops_t, dump, 24, 48);
+ CHECK_MEMBER_AT(camera3_device_ops_t, flush, 28, 56);
+ CHECK_MEMBER_AT(camera3_device_ops_t, reserved, 32, 64);
+}
+
diff --git a/libhardware/tests/hardware/struct-size.cpp b/libhardware/tests/hardware/struct-size.cpp
new file mode 100644
index 0000000..acb9d2d
--- /dev/null
+++ b/libhardware/tests/hardware/struct-size.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include <system/window.h>
+#include <hardware/hardware.h>
+#include <hardware/sensors.h>
+#include <hardware/fb.h>
+#include <hardware/hwcomposer.h>
+#include <hardware/gralloc.h>
+#include <hardware/consumerir.h>
+#include <hardware/camera_common.h>
+#include <hardware/camera3.h>
+
+template<size_t> static constexpr size_t CheckSizeHelper(size_t, size_t);
+
+template<> constexpr size_t CheckSizeHelper<4>(size_t size32, size_t /* size64 */) {
+ return size32;
+}
+
+template<> constexpr size_t CheckSizeHelper<8>(size_t /* size32 */, size_t size64) {
+ return size64;
+}
+
+template<typename T, size_t size32, size_t size64> static void CheckTypeSize() {
+ const size_t mySize = CheckSizeHelper<sizeof(void *)>(size32, size64);
+
+ static_assert(sizeof(T) == mySize, "struct is the wrong size");
+}
+
+void CheckSizes(void) {
+ //Types defined in hardware.h
+ CheckTypeSize<hw_module_t, 128, 248>();
+ CheckTypeSize<hw_device_t, 64, 120>();
+
+ //Types defined in sensors.h
+ CheckTypeSize<sensors_vec_t, 16, 16>();
+ CheckTypeSize<sensors_event_t, 104, 104>();
+ CheckTypeSize<struct sensor_t, 68, 104>();
+ CheckTypeSize<sensors_poll_device_1_t, 116, 224>();
+
+ //Types defined in fb.h
+ CheckTypeSize<framebuffer_device_t, 184, 288>();
+
+ //Types defined in hwcomposer.h
+ CheckTypeSize<hwc_layer_1_t, 96, 120>();
+ CheckTypeSize<hwc_composer_device_1_t, 116, 224>();
+
+ //Types defined in gralloc.h
+ CheckTypeSize<gralloc_module_t, 176, 344>();
+ CheckTypeSize<alloc_device_t, 104, 200>();
+
+ //Types defined in consumerir.h
+ CheckTypeSize<consumerir_device_t, 96, 184>();
+
+ //Types defined in camera_common.h
+ CheckTypeSize<vendor_tag_ops_t, 52, 104>();
+ CheckTypeSize<camera_module_t, 176, 344>();
+
+ //Types defined in camera3.h
+ CheckTypeSize<camera3_device_ops_t, 64, 128>();
+}
+
diff --git a/libhardware/tests/hwc/Android.mk b/libhardware/tests/hwc/Android.mk
new file mode 100644
index 0000000..367f5f4
--- /dev/null
+++ b/libhardware/tests/hwc/Android.mk
@@ -0,0 +1,15 @@
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libcnativewindow
+LOCAL_SRC_FILES := cnativewindow.c util.c
+LOCAL_CFLAGS := -Wno-unused-parameter
+include $(BUILD_STATIC_LIBRARY)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := hwc-test-arrows
+LOCAL_SRC_FILES := test-arrows.c
+LOCAL_STATIC_LIBRARIES := libcnativewindow
+LOCAL_SHARED_LIBRARIES := libEGL libGLESv2 libdl libhardware
+LOCAL_CFLAGS := -DGL_GLEXT_PROTOTYPES
+include $(BUILD_EXECUTABLE)
diff --git a/libhardware/tests/hwc/cnativewindow.c b/libhardware/tests/hwc/cnativewindow.c
new file mode 100644
index 0000000..5b1d78e
--- /dev/null
+++ b/libhardware/tests/hwc/cnativewindow.c
@@ -0,0 +1,578 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#include <hardware/hardware.h>
+#include <hardware/gralloc.h>
+#include <hardware/hwcomposer.h>
+
+#include <system/window.h>
+#include <cutils/native_handle.h>
+
+// normalize and shorten type names
+typedef struct android_native_base_t aBase;
+typedef struct ANativeWindowBuffer aBuffer;
+typedef struct ANativeWindow aWindow;
+
+static int trace_level = 1;
+
+#define _TRACE(n,fmt...) \
+ do { if (trace_level >= (n)) fprintf(stderr, "CNW: " fmt); } while (0)
+
+#define ERROR(fmt...) _TRACE(0, fmt)
+#define INFO(fmt...) _TRACE(1, fmt)
+#define LOG(fmt...) _TRACE(2, fmt)
+#define TRACE(fmt...) _TRACE(3, fmt)
+
+#define QCT_WORKAROUND 1
+
+typedef struct CNativeBuffer {
+ aBuffer base;
+ struct CNativeBuffer *next;
+ struct CNativeBuffer *prev;
+ int ffd;
+} CNativeBuffer;
+
+typedef struct CNativeWindow {
+ aWindow base;
+
+ hwc_composer_device_1_t *hwc;
+ framebuffer_device_t *fb;
+ alloc_device_t *gr;
+
+ pthread_mutex_t lock;
+ pthread_cond_t cvar;
+
+ aBuffer *front;
+ aBuffer *spare;
+
+ CNativeBuffer free_buffer_queue;
+
+ unsigned width;
+ unsigned height;
+ unsigned xdpi;
+ unsigned ydpi;
+ unsigned format;
+
+ hwc_display_contents_1_t *dclist[HWC_NUM_PHYSICAL_DISPLAY_TYPES];
+
+ hwc_display_contents_1_t dc;
+ hwc_layer_1_t layer[4];
+} CNativeWindow;
+
+static inline CNativeBuffer *from_abuffer(aBuffer *buf) {
+ return (CNativeBuffer*) buf;
+}
+
+static CNativeBuffer *get_front(struct CNativeBuffer *queue) {
+ CNativeBuffer *buf = queue->next;
+ if (buf == queue)
+ return 0;
+ buf->next->prev = queue;
+ queue->next = buf->next;
+ buf->next = buf->prev = 0;
+ return buf;
+}
+
+static void put_front(struct CNativeBuffer *queue, aBuffer *_buf) {
+ struct CNativeBuffer *buf = (struct CNativeBuffer *) _buf;
+ buf->prev = queue;
+ buf->next = queue->next;
+ queue->next->prev = buf;
+ queue->next = buf;
+}
+
+static void put_back(struct CNativeBuffer *queue, aBuffer *_buf) {
+ struct CNativeBuffer *buf = (struct CNativeBuffer *) _buf;
+ buf->next = queue;
+ buf->prev = queue->prev;
+ queue->prev->next = buf;
+ queue->prev = buf;
+}
+
+static void cnw_inc_ref(aBase *base) { TRACE("buf %p ref++\n",base); }
+static void cnw_dec_ref(aBase *base) { TRACE("buf %p ref--\n",base); }
+
+static inline CNativeWindow *from_base(aWindow *base) {
+ return (CNativeWindow *) base;
+}
+
+static inline CNativeWindow *from_base_const(const aWindow *base) {
+ return (CNativeWindow *) base;
+}
+
+static int cnw_set_swap_interval(aWindow *base, int interval) {
+ CNativeWindow *win = from_base(base);
+ if (win->fb && win->fb->setSwapInterval)
+ return win->fb->setSwapInterval(win->fb, interval);
+ return 0;
+}
+
+static int cnw_dequeue_buffer1(aWindow *base, aBuffer **buf, int *ffd) {
+ CNativeWindow *win = from_base(base);
+ CNativeBuffer *cnb;
+
+ pthread_mutex_lock(&win->lock);
+
+ while ((cnb = get_front(&win->free_buffer_queue)) == 0) {
+ pthread_cond_wait(&win->cvar, &win->lock);
+ }
+
+ *ffd = cnb->ffd;
+ *buf = &cnb->base;
+ cnb->ffd = -1;
+ LOG("<< dequeue buffer %p %d\n", *buf, *ffd);
+
+ pthread_mutex_unlock(&win->lock);
+ return 0;
+}
+
+static int cnw_lock_buffer0(aWindow *base, aBuffer *buffer) {
+ return 0;
+}
+
+static void set_layer(hwc_layer_1_t *dl, aBuffer *buf, int ffd) {
+ int right = buf->width;
+ int bottom = buf->height;
+
+ dl->compositionType = HWC_FRAMEBUFFER;
+ dl->hints = 0;
+ dl->flags = 0;
+
+ dl->handle = buf->handle;
+ dl->transform = 0;
+ dl->blending = HWC_BLENDING_NONE;
+ dl->sourceCrop.left = 0;
+ dl->sourceCrop.top = 0;
+ dl->sourceCrop.right = right;
+ dl->sourceCrop.bottom = bottom;
+ dl->displayFrame.left = 0;
+ dl->displayFrame.top = 0;
+ dl->displayFrame.right = right;
+ dl->displayFrame.bottom = bottom;
+ dl->visibleRegionScreen.numRects = 1;
+ dl->visibleRegionScreen.rects = &dl->displayFrame;
+
+ dl->acquireFenceFd = ffd;
+ dl->releaseFenceFd = -1;
+}
+
+static void hwc_post(CNativeWindow *win, aBuffer *buf, int ffd) {
+ hwc_composer_device_1_t *hwc = win->hwc;
+ hwc_display_contents_1_t *dc = &(win->dc);
+ hwc_layer_1_t *dl = win->dc.hwLayers;
+ int r, i;
+
+ dc->retireFenceFd = -1;
+ dc->outbufAcquireFenceFd = -1;
+ dc->flags = HWC_GEOMETRY_CHANGED;
+ dc->numHwLayers = 1;
+
+ // some hwcomposers fail if these are NULL
+ dc->dpy = (void*) 0xdeadbeef;
+ dc->sur = (void*) 0xdeadbeef;
+
+ set_layer(&dl[0], buf, ffd);
+
+ if (QCT_WORKAROUND) {
+ set_layer(&dl[1], win->spare, -1);
+ dl[1].compositionType = HWC_FRAMEBUFFER_TARGET;
+ dc->numHwLayers++;
+ }
+
+ r = hwc->prepare(hwc, HWC_NUM_PHYSICAL_DISPLAY_TYPES, win->dclist);
+ if (r) {
+ ERROR("hwc->prepare failed r=%d\n",r);
+ return;
+ }
+
+// for (i = 0; i < dc->numHwLayers; i++)
+// LOG("dl[%d] ctype=0x%08x hints=0x%08x flags=0x%08x\n", i,
+// dl[i].compositionType, dl[0].hints, dl[0].flags);
+
+ r = hwc->set(hwc, HWC_NUM_PHYSICAL_DISPLAY_TYPES, win->dclist);
+ if (r) {
+ ERROR("hwc->set failed, r=%d\n", r);
+ return;
+ }
+
+ if (dc->retireFenceFd != -1)
+ close(dc->retireFenceFd);
+ if (dl->releaseFenceFd != -1) {
+ CNativeBuffer *cnb = from_abuffer(buf);
+ cnb->ffd = dl->releaseFenceFd;
+ }
+ if (QCT_WORKAROUND)
+ if (dl[1].releaseFenceFd != -1)
+ close(dl[1].releaseFenceFd);
+}
+
+static int cnw_queue_buffer1(aWindow *base, aBuffer *buffer, int ffd) {
+ CNativeWindow *win = from_base(base);
+ int res;
+ LOG(">> queue buffer %p %d\n", buffer, ffd);
+ if (win->fb) {
+ res = win->fb->post(win->fb, buffer->handle);
+ if (ffd != -1)
+ close(ffd);
+ } else {
+ hwc_post(win, buffer, ffd);
+ res = 0;
+ }
+ pthread_mutex_lock(&win->lock);
+ if (win->front)
+ put_back(&win->free_buffer_queue, win->front);
+ win->front = buffer;
+ pthread_cond_signal(&win->cvar);
+ pthread_mutex_unlock(&win->lock);
+
+ return res;
+}
+
+static int cnw_cancel_buffer1(aWindow *base, aBuffer *buf, int ffd) {
+ CNativeWindow *win = from_base(base);
+ CNativeBuffer *cnb = from_abuffer(buf);
+ LOG("<< cancel buffer %p %d\n", buf, ffd);
+ cnb->ffd = ffd;
+ pthread_mutex_lock(&win->lock);
+ put_front(&win->free_buffer_queue, buf);
+ pthread_mutex_unlock(&win->lock);
+ return 0;
+}
+
+static int cnw_dequeue_buffer0(aWindow *base, aBuffer **buf) {
+ int ffd = -1;
+ int r;
+ r = cnw_dequeue_buffer1(base, buf, &ffd);
+ if (ffd != -1)
+ close(ffd);
+ return r;
+}
+
+static int cnw_queue_buffer0(aWindow *base, aBuffer *buf) {
+ return cnw_queue_buffer1(base, buf, -1);
+}
+
+static int cnw_cancel_buffer0(aWindow *base, aBuffer *buf) {
+ return cnw_cancel_buffer1(base, buf, -1);
+}
+
+static int cnw_query(const aWindow *base, int what, int *value) {
+ CNativeWindow *win = from_base_const(base);
+
+ switch (what) {
+ case NATIVE_WINDOW_WIDTH:
+ case NATIVE_WINDOW_DEFAULT_WIDTH:
+ *value = win->width;
+ TRACE("query window width: %d\n", *value);
+ return 0;
+ case NATIVE_WINDOW_HEIGHT:
+ case NATIVE_WINDOW_DEFAULT_HEIGHT:
+ *value = win->height;
+ TRACE("query window height: %d\n", *value);
+ return 0;
+ case NATIVE_WINDOW_FORMAT:
+ *value = win->format;
+ TRACE("query window format: %d\n", *value);
+ return 0;
+ case NATIVE_WINDOW_TRANSFORM_HINT:
+ TRACE("query transform hint: 0\n");
+ *value = 0;
+ return 0;
+ case NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS:
+ TRACE("query min undequeued buffers: 1\n");
+ *value = 1;
+ return 0;
+ default:
+ *value = 0;
+ ERROR("query %d unknown!\n", what);
+ return -EINVAL;
+ }
+}
+
+static int cnw_perform(aWindow *base, int op, ...) {
+ CNativeWindow *win = from_base(base);
+ va_list ap;
+ va_start(ap, op);
+
+ switch (op) {
+ case NATIVE_WINDOW_SET_USAGE:
+ TRACE("set usage %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_CONNECT:
+ case NATIVE_WINDOW_DISCONNECT:
+ case NATIVE_WINDOW_API_CONNECT:
+ case NATIVE_WINDOW_API_DISCONNECT:
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_FORMAT:
+ TRACE("set buffers format %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
+ TRACE("set buffers transform %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_TIMESTAMP:
+ TRACE("set buffers timestamp %lld\n", va_arg(ap,long long));
+ return 0;
+ case NATIVE_WINDOW_SET_SCALING_MODE:
+ TRACE("set scaling mode %d\n", va_arg(ap,int));
+ return 0;
+ case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS: {
+ unsigned int w = va_arg(ap,unsigned int);
+ unsigned int h = va_arg(ap,unsigned int);
+ if ((w == win->width) && (h == win->height)) {
+ TRACE("set buffers dimensions %d x %d\n", w, h);
+ return 0;
+ }
+ ERROR("cannot resize buffers to %d x %d\n", w, h);
+ return -1;
+ }
+ default:
+ ERROR("perform %d unknown!\n", op);
+ return -ENODEV;
+ }
+}
+
+static void hwc_invalidate(const struct hwc_procs *procs) {}
+static void hwc_vsync(const struct hwc_procs *procs, int disp, int64_t ts) {}
+static void hwc_hotplug(const struct hwc_procs *procs, int disp, int conn) {}
+
+struct hwc_procs hprocs = {
+ .invalidate = hwc_invalidate,
+ .vsync = hwc_vsync,
+ .hotplug = hwc_hotplug,
+};
+
+uint32_t attrs[] = {
+ HWC_DISPLAY_WIDTH,
+ HWC_DISPLAY_HEIGHT,
+ HWC_DISPLAY_VSYNC_PERIOD,
+ HWC_DISPLAY_DPI_X,
+ HWC_DISPLAY_DPI_Y,
+ HWC_DISPLAY_NO_ATTRIBUTE,
+};
+
+static int hwc_init(CNativeWindow *win) {
+ hw_module_t const* module;
+ hwc_composer_device_1_t *hwc;
+ unsigned i;
+ int r;
+ uint32_t configs[32];
+ size_t numconfigs = 32;
+ int32_t values[8];
+
+ if (hw_get_module(HWC_HARDWARE_MODULE_ID, &module) != 0) {
+ ERROR("cannot open hw composer module\n");
+ return -ENODEV;
+ }
+
+ if (hwc_open_1(module, &hwc)) {
+ ERROR("cannot open hwc device\n");
+ return -ENODEV;
+ }
+ win->hwc = hwc;
+
+ LOG("hwc version 0x%08x\n", hwc->common.version);
+
+ if ((hwc->common.version & 0xFFFF0000) < 0x01010000) {
+ ERROR("hwc version less than 1.1\n");
+ hwc_close_1(hwc);
+ return -ENODEV;
+ }
+
+ hwc->registerProcs(hwc, &hprocs);
+
+ if (hwc->getDisplayConfigs(hwc, 0, configs, &numconfigs)) {
+ ERROR("cannot get configs\n");
+ return -ENODEV;
+ }
+ for (i = 0; i < numconfigs; i++)
+ LOG("cfg[%d] = 0x%08x\n", i, configs[i]);
+
+ if ((r = hwc->getDisplayAttributes(hwc, 0, configs[0], attrs, values))) {
+ ERROR("cannot get attributes %d\n", r);
+ return -ENODEV;
+ }
+
+ win->width = values[0];
+ win->height = values[1];
+ win->xdpi = values[3];
+ win->ydpi = values[4];
+ win->format = HAL_PIXEL_FORMAT_RGBA_8888;
+
+ hwc->blank(hwc, 0, 0);
+
+ win->dclist[0] = &(win->dc);
+ return 0;
+}
+
+static aBuffer *cnw_alloc(CNativeWindow *win, unsigned format, unsigned usage) {
+ CNativeBuffer *cnb;
+ aBuffer *buf;
+ int err;
+
+ if (!(cnb = malloc(sizeof(CNativeBuffer))))
+ return 0;
+
+ buf = &cnb->base;
+ cnb->ffd = -1;
+
+ buf->common.magic = ANDROID_NATIVE_BUFFER_MAGIC;
+ buf->common.version = sizeof(aBuffer);
+ buf->common.incRef = cnw_inc_ref;
+ buf->common.decRef = cnw_dec_ref;
+
+ buf->width = win->width;
+ buf->height = win->height;
+ buf->format = format;
+ buf->usage = usage;
+
+ err = win->gr->alloc(win->gr, win->width, win->height,
+ format, usage, &buf->handle, &buf->stride);
+ if (err) {
+ ERROR("gralloc of %d x %d failed: err=%d\n",
+ win->width, win->height, err);
+ free(buf);
+ return 0;
+ }
+ INFO("alloc buffer %p %d x %d\n", buf, win->width, win->height);
+ return buf;
+}
+
+static int cnw_init(CNativeWindow *win) {
+ hw_module_t const* module;
+ framebuffer_device_t *fb = NULL;
+ alloc_device_t *gr;
+ int err, i, n;
+ unsigned usage, format;
+
+ memset(win, 0, sizeof(CNativeWindow));
+
+ win->free_buffer_queue.next = &(win->free_buffer_queue);
+ win->free_buffer_queue.prev = &(win->free_buffer_queue);
+
+ if (hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module) != 0) {
+ ERROR("cannot open gralloc module\n");
+ return -ENODEV;
+ }
+
+ if (hwc_init(win)) {
+ ERROR("cannot open hwcomposer, trying legacy fb HAL\n");
+ err = framebuffer_open(module, &fb);
+ if (err) {
+ ERROR("cannot open fb HAL (%s)", strerror(-err));
+ return -ENODEV;
+ }
+ win->width = fb->width;
+ win->height = fb->height;
+ win->format = fb->format;
+ win->xdpi = fb->xdpi;
+ win->ydpi = fb->ydpi;
+ win->fb = fb;
+ }
+
+ INFO("display %d x %d fmt=%d\n",
+ win->width, win->height, win->format);
+
+ err = gralloc_open(module, &gr);
+ if (err) {
+ ERROR("couldn't open gralloc HAL (%s)", strerror(-err));
+ return -ENODEV;
+ }
+ win->gr = gr;
+
+ usage = GRALLOC_USAGE_HW_FB |
+ GRALLOC_USAGE_HW_COMPOSER |
+ GRALLOC_USAGE_HW_RENDER;
+
+ for (i = 0; i < 2; i++) {
+ aBuffer *buf = cnw_alloc(win, win->format, usage);
+ if (!buf)
+ return -ENOMEM;
+ put_back(&win->free_buffer_queue, buf);
+ }
+
+ if (!win->fb && QCT_WORKAROUND) {
+ win->spare = cnw_alloc(win, win->format, usage);
+ if (!win->spare)
+ return -ENOMEM;
+ }
+
+ // Disgusting, but we need to init these "const" fields
+ // and unlike C++ we can't use const_cast<>
+ *((float*) &win->base.xdpi) = win->xdpi;
+ *((float*) &win->base.ydpi) = win->ydpi;
+ *((int*) &win->base.minSwapInterval) = 1;
+ *((int*) &win->base.maxSwapInterval) = 1;
+
+ win->base.common.magic = ANDROID_NATIVE_WINDOW_MAGIC;
+ win->base.common.version = sizeof(aWindow);
+ win->base.common.incRef = cnw_inc_ref;
+ win->base.common.decRef = cnw_dec_ref;
+
+ win->base.setSwapInterval = cnw_set_swap_interval;
+ win->base.dequeueBuffer_DEPRECATED = cnw_dequeue_buffer0;
+ win->base.lockBuffer_DEPRECATED = cnw_lock_buffer0;
+ win->base.queueBuffer_DEPRECATED = cnw_queue_buffer0;
+ win->base.query = cnw_query;
+ win->base.perform = cnw_perform;
+ win->base.cancelBuffer_DEPRECATED = cnw_cancel_buffer0;
+ win->base.dequeueBuffer = cnw_dequeue_buffer1;
+ win->base.queueBuffer = cnw_queue_buffer1;
+ win->base.cancelBuffer = cnw_cancel_buffer1;
+
+ pthread_mutex_init(&win->lock, NULL);
+ pthread_cond_init(&win->cvar, NULL);
+
+ return 0;
+}
+
+void cnw_destroy(CNativeWindow *win) {
+ if (win->fb)
+ framebuffer_close(win->fb);
+ if (win->hwc)
+ hwc_close_1(win->hwc);
+ if (win->gr)
+ gralloc_close(win->gr);
+ free(win);
+}
+
+CNativeWindow *cnw_create(void) {
+ CNativeWindow *win;
+ char *x;
+ if ((x = getenv("CNWDEBUG")))
+ trace_level = atoi(x);
+ if (!(win = malloc(sizeof(CNativeWindow))))
+ return NULL;
+ if (cnw_init(win)) {
+ cnw_destroy(win);
+ return NULL;
+ }
+ return win;
+}
+
+void cnw_info(CNativeWindow *win, unsigned *w, unsigned *h, unsigned *fmt) {
+ *w = win->width;
+ *h = win->height;
+ *fmt = win->format;
+}
+
diff --git a/libhardware/tests/hwc/test-arrows.c b/libhardware/tests/hwc/test-arrows.c
new file mode 100644
index 0000000..12e7c8f
--- /dev/null
+++ b/libhardware/tests/hwc/test-arrows.c
@@ -0,0 +1,164 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+
+#include "util.h"
+
+static const char gVertexShader[] =
+ "attribute vec4 aPosition;\n"
+ "uniform mat4 uTransform;\n"
+ "varying vec4 vTexCoord;\n"
+ "void main() {\n"
+ " gl_Position = aPosition * uTransform;\n"
+ " vTexCoord = aPosition * vec4(1.0/16.0,-1.0/16.0,0.0,0.0);\n"
+ "}\n";
+
+static const char gFragmentShader[] =
+ "precision mediump float;\n"
+ "uniform sampler2D uTexture;\n"
+ "uniform float uAnim;\n"
+ "varying vec4 vTexCoord;\n"
+ "void main() {\n"
+ " vec2 tc = vec2(vTexCoord.x, uAnim + vTexCoord.y);\n"
+ " gl_FragColor = texture2D(uTexture, tc);\n"
+ "}\n";
+
+static GLuint pgm;
+static GLint aPosition, uTransform, uTexture, uAnim;
+
+static GLfloat vtx[2 * 3 * 2];
+static GLfloat mtx[16];
+
+//#define R (0xFF0000FF)
+#define R (0xFF000000)
+#define G (0xFF00FF00)
+uint32_t t32[] = {
+ R, R, R, R, R, R, R, G, G, R, R, R, R, R, R, R,
+ R, R, R, R, R, R, G, G, G, G, R, R, R, R, R, R,
+ R, R, R, R, R, G, G, G, G, G, G, R, R, R, R, R,
+ R, R, R, R, G, G, G, G, G, G, G, G, R, R, R, R,
+ R, R, R, G, G, G, G, G, G, G, G, G, G, R, R, R,
+ R, R, G, G, G, G, G, G, G, G, G, G, G, G, R, R,
+ R, R, G, G, G, G, G, G, G, G, G, G, G, G, R, R,
+ R, R, R, R, R, R, G, G, G, G, R, R, R, R, R, R,
+ R, R, R, R, R, R, G, G, G, G, R, R, R, R, R, R,
+ R, R, R, R, R, R, G, G, G, G, R, R, R, R, R, R,
+ R, R, R, R, R, R, G, G, G, G, R, R, R, R, R, R,
+ R, R, R, R, R, R, G, G, G, G, R, R, R, R, R, R,
+ R, R, R, R, R, R, G, G, G, G, R, R, R, R, R, R,
+ R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R,
+ R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R,
+ R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R,
+};
+#undef R
+#undef G
+
+int prepare(int w, int h) {
+ GLuint texid;
+
+ int left = w / 4;
+ int top = h / 4;
+ int right = (w / 4) * 3;
+ int bottom = (h / 4) * 3;
+
+ vtx[0] = left;
+ vtx[1] = top;
+ vtx[2] = left;
+ vtx[3] = bottom;
+ vtx[4] = right;
+ vtx[5] = bottom;
+
+ vtx[6] = right;
+ vtx[7] = bottom;
+ vtx[8] = right;
+ vtx[9] = top;
+ vtx[10] = left;
+ vtx[11] = top;
+
+ matrix_init_ortho(mtx, w, h);
+
+ pgm = load_program(gVertexShader, gFragmentShader);
+ if (!pgm)
+ return -1;
+
+ aPosition = glGetAttribLocation(pgm, "aPosition");
+ uTexture = glGetUniformLocation(pgm, "uTexture");
+ uTransform = glGetUniformLocation(pgm, "uTransform");
+ uAnim = glGetUniformLocation(pgm, "uAnim");
+
+ glViewport(0, 0, w, h);
+
+ glGenTextures(1, &texid);
+ glActiveTexture(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_2D, texid);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ glEnable(GL_TEXTURE_2D);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 16, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, t32);
+
+ return 0;
+}
+
+static float anim = 0.0;
+
+void render() {
+ anim += 0.1;
+ if (anim >= 16.0) anim = 0.0;
+
+ glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+ glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+ glUseProgram(pgm);
+ glUniform1i(uTexture, 0);
+ glUniform1f(uAnim, anim);
+ glUniformMatrix4fv(uTransform, 1, 0, mtx);
+ glVertexAttribPointer(aPosition, 2, GL_FLOAT, GL_FALSE, 0, vtx);
+ glEnableVertexAttribArray(aPosition);
+ glDrawArrays(GL_TRIANGLES, 0, 6);
+}
+
+int main(int argc, char **argv) {
+ EGLDisplay display;
+ EGLSurface surface;
+ int w, h, count = 0;
+
+ if (argc > 1)
+ count = atoi(argv[1]);
+
+ if (egl_create(&display, &surface, &w, &h))
+ return -1;
+
+ if (prepare(w, h))
+ return -1;
+
+ for (;;) {
+ render();
+ eglSwapBuffers(display, surface);
+ if (count > 0)
+ if (--count == 0)
+ break;
+ }
+
+ egl_destroy(display, surface);
+ return 0;
+}
diff --git a/libhardware/tests/hwc/util.c b/libhardware/tests/hwc/util.c
new file mode 100644
index 0000000..8931305
--- /dev/null
+++ b/libhardware/tests/hwc/util.c
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+
+#include <EGL/egl.h>
+#include <GLES2/gl2.h>
+
+#include <system/graphics.h>
+
+#include "util.h"
+
+void matrix_init_ortho(GLfloat *m, float w, float h) {
+ m[0] = 2.0 / w;
+ m[1] = 0.0;
+ m[2] = 0.0;
+ m[3] = -1.0;
+ m[4] = 0.0;
+ m[5] = 2.0 / h;
+ m[6] = 0.0;
+ m[7] = -1.0;
+ m[8] = 0.0;
+ m[9] = 0.0;
+ m[10] -1.0;
+ m[11] = 0.0;
+ m[12] = 0.0;
+ m[13] = 0.0;
+ m[14] = 0.0;
+ m[15] = 1.0;
+}
+
+static GLuint load_shader(GLenum shaderType, const char *src) {
+ GLint status = 0, len = 0;
+ GLuint shader;
+
+ if (!(shader = glCreateShader(shaderType)))
+ return 0;
+
+ glShaderSource(shader, 1, &src, NULL);
+ glCompileShader(shader);
+ glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
+
+ if (status)
+ return shader;
+
+ glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &len);
+ if (len) {
+ char *msg = malloc(len);
+ if (msg) {
+ glGetShaderInfoLog(shader, len, NULL, msg);
+ msg[len-1] = 0;
+ fprintf(stderr, "error compiling shader:\n%s\n", msg);
+ free(msg);
+ }
+ }
+ glDeleteShader(shader);
+ return 0;
+}
+
+GLuint load_program(const char *vert_src, const char *frag_src) {
+ GLuint vert, frag, prog;
+ GLint status = 0, len = 0;
+
+ if (!(vert = load_shader(GL_VERTEX_SHADER, vert_src)))
+ return 0;
+ if (!(frag = load_shader(GL_FRAGMENT_SHADER, frag_src)))
+ goto fail_frag;
+ if (!(prog = glCreateProgram()))
+ goto fail_prog;
+
+ glAttachShader(prog, vert);
+ glAttachShader(prog, frag);
+ glLinkProgram(prog);
+
+ glGetProgramiv(prog, GL_LINK_STATUS, &status);
+ if (status)
+ return prog;
+
+ glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &len);
+ if (len) {
+ char *buf = (char*) malloc(len);
+ if (buf) {
+ glGetProgramInfoLog(prog, len, NULL, buf);
+ buf[len-1] = 0;
+ fprintf(stderr, "error linking program:\n%s\n", buf);
+ free(buf);
+ }
+ }
+ glDeleteProgram(prog);
+fail_prog:
+ glDeleteShader(frag);
+fail_frag:
+ glDeleteShader(vert);
+ return 0;
+}
+
+int select_config_for_window(EGLDisplay dpy, EGLint *attr,
+ unsigned format, EGLConfig *config) {
+ EGLint R,G,B,A,r,g,b,a;
+ EGLint i, n, max;
+ EGLConfig *cfg;
+
+ switch (format) {
+ case HAL_PIXEL_FORMAT_RGBA_8888:
+ case HAL_PIXEL_FORMAT_BGRA_8888:
+ R = G = B = A = 8;
+ break;
+ case HAL_PIXEL_FORMAT_RGB_565:
+ R = 5; G = 6; B = 5; A = 0;
+ break;
+ default:
+ fprintf(stderr, "unknown fb pixel format %d\n", format);
+ return -1;
+ }
+
+ if (eglGetConfigs(dpy, NULL, 0, &max) == EGL_FALSE) {
+ fprintf(stderr, "no EGL configurations available?!\n");
+ return -1;
+ }
+
+ cfg = (EGLConfig*) malloc(sizeof(EGLConfig) * max);
+ if (!cfg)
+ return -1;
+
+ if (eglChooseConfig(dpy, attr, cfg, max, &n) == EGL_FALSE) {
+ fprintf(stderr, "eglChooseConfig failed\n");
+ return -1;
+ }
+
+ for (i = 0; i < n; i++) {
+ EGLint r,g,b,a;
+ eglGetConfigAttrib(dpy, cfg[i], EGL_RED_SIZE, &r);
+ eglGetConfigAttrib(dpy, cfg[i], EGL_GREEN_SIZE, &g);
+ eglGetConfigAttrib(dpy, cfg[i], EGL_BLUE_SIZE, &b);
+ eglGetConfigAttrib(dpy, cfg[i], EGL_ALPHA_SIZE, &a);
+ if (r == R && g == G && b == B && a == A) {
+ *config = cfg[i];
+ free(cfg);
+ return 0;
+ }
+ }
+
+ fprintf(stderr, "cannot find matching config\n");
+ free(cfg);
+ return -1;
+}
+
+static struct CNativeWindow *_cnw = 0;
+
+int egl_create(EGLDisplay *_display, EGLSurface *_surface, int *_w, int *_h) {
+ EGLBoolean res;
+ EGLConfig config = { 0 };
+ EGLint context_attrs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
+ EGLint config_attrs[] = {
+ EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
+ EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
+ EGL_NONE };
+ EGLint major, minor;
+ EGLContext context;
+ EGLSurface surface;
+ EGLint w, h;
+ EGLDisplay display;
+ EGLNativeWindowType window;
+ unsigned width, height, format;
+ struct CNativeWindow *cnw;
+
+ display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
+ if (display == EGL_NO_DISPLAY)
+ return -1;
+
+ if (!(res = eglInitialize(display, &major, &minor)))
+ return -1;
+
+ fprintf(stderr, "egl version: %d.%d\n", major, minor);
+
+ if ((cnw = cnw_create()) == 0)
+ return -1;
+
+ cnw_info(cnw, &width, &height, &format);
+ window = (EGLNativeWindowType) cnw;
+
+ if ((res = select_config_for_window(display, config_attrs, format, &config)))
+ goto fail;
+
+ surface = eglCreateWindowSurface(display, config, window, NULL);
+ if (surface == EGL_NO_SURFACE)
+ goto fail;
+
+ context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_attrs);
+ if (context == EGL_NO_CONTEXT)
+ goto fail;
+
+ if (!(res = eglMakeCurrent(display, surface, surface, context)))
+ goto fail;
+
+ eglQuerySurface(display, surface, EGL_WIDTH, &w);
+ eglQuerySurface(display, surface, EGL_HEIGHT, &h);
+
+ fprintf(stderr, "window: %d x %d\n", w, h);
+
+ *_display = display;
+ *_surface = surface;
+ *_w = w;
+ *_h = h;
+
+ _cnw = cnw;
+ return 0;
+
+fail:
+ cnw_destroy(cnw);
+ return -1;
+}
+
+void egl_destroy(EGLDisplay display, EGLSurface surface) {
+ if (_cnw) {
+ eglDestroySurface(display, surface);
+ eglTerminate(display);
+ cnw_destroy(_cnw);
+ _cnw = 0;
+ }
+}
diff --git a/libhardware/tests/hwc/util.h b/libhardware/tests/hwc/util.h
new file mode 100644
index 0000000..a0d38ce
--- /dev/null
+++ b/libhardware/tests/hwc/util.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _GL_UTIL_H_
+#define _GL_UTIL_H_
+
+/* convenience */
+
+GLuint load_program(const char *vert_src, const char *frag_src);
+void matrix_init_ortho(GLfloat *m, float w, float h);
+
+/* context setup / teardown */
+
+int egl_create(EGLDisplay *_display, EGLSurface *_surface, int *_w, int *_h);
+void egl_destroy(EGLDisplay display, EGLSurface surface);
+
+/* internals needed by util.c */
+
+struct CNativeWindow;
+struct CNativeWindow *cnw_create(void);
+void cnw_destroy(struct CNativeWindow *win);
+void cnw_info(struct CNativeWindow *win,
+ unsigned *w, unsigned *h, unsigned *fmt);
+
+#endif
diff --git a/libhardware/tests/input/Android.mk b/libhardware/tests/input/Android.mk
new file mode 100644
index 0000000..3011b2e
--- /dev/null
+++ b/libhardware/tests/input/Android.mk
@@ -0,0 +1,19 @@
+# Copyright (C) 2015 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/libhardware/tests/input/evdev/Android.mk b/libhardware/tests/input/evdev/Android.mk
new file mode 100644
index 0000000..8761da8
--- /dev/null
+++ b/libhardware/tests/input/evdev/Android.mk
@@ -0,0 +1,28 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_C_INCLUDES += hardware/libhardware/modules/input/evdev
+
+LOCAL_SRC_FILES:= \
+ InputDevice_test.cpp \
+ InputHub_test.cpp \
+ TestHelpers.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libinput_evdev \
+ liblog \
+ libutils
+
+LOCAL_CLANG := true
+LOCAL_CFLAGS += -Wall -Wextra -Wno-unused-parameter
+LOCAL_CPPFLAGS += -std=c++14
+
+# TestHelpers uses mktemp. As the path is given to TempFile, we can't do too much
+# here (e.g., use mkdtemp first). At least races will lead to an early failure, as
+# mkfifo fails on existing files.
+LOCAL_CFLAGS += -Wno-deprecated-declarations
+
+LOCAL_MODULE := libinput_evdevtests
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_NATIVE_TEST)
diff --git a/libhardware/tests/input/evdev/InputDevice_test.cpp b/libhardware/tests/input/evdev/InputDevice_test.cpp
new file mode 100644
index 0000000..a96d664
--- /dev/null
+++ b/libhardware/tests/input/evdev/InputDevice_test.cpp
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputHub_test"
+//#define LOG_NDEBUG 0
+
+#include <linux/input.h>
+
+#include <gtest/gtest.h>
+
+#include <utils/Timers.h>
+
+#include "InputDevice.h"
+#include "InputHub.h"
+
+// # of milliseconds to allow for timing measurements
+#define TIMING_TOLERANCE_MS 25
+
+#define MSC_ANDROID_TIME_SEC 0x6
+#define MSC_ANDROID_TIME_USEC 0x7
+
+namespace android {
+namespace tests {
+
+class MockInputDeviceNode : public InputDeviceNode {
+ virtual const std::string& getPath() const override { return mPath; }
+
+ virtual const std::string& getName() const override { return mName; }
+ virtual const std::string& getLocation() const override { return mLocation; }
+ virtual const std::string& getUniqueId() const override { return mUniqueId; }
+
+ virtual uint16_t getBusType() const override { return 0; }
+ virtual uint16_t getVendorId() const override { return 0; }
+ virtual uint16_t getProductId() const override { return 0; }
+ virtual uint16_t getVersion() const override { return 0; }
+
+ virtual bool hasKey(int32_t key) const { return false; }
+ virtual bool hasRelativeAxis(int axis) const { return false; }
+ virtual bool hasInputProperty(int property) const { return false; }
+
+ virtual int32_t getKeyState(int32_t key) const { return 0; }
+ virtual int32_t getSwitchState(int32_t sw) const { return 0; }
+ virtual const AbsoluteAxisInfo* getAbsoluteAxisInfo(int32_t axis) const { return nullptr; }
+ virtual status_t getAbsoluteAxisValue(int32_t axis, int32_t* outValue) const { return 0; }
+
+ virtual void vibrate(nsecs_t duration) {}
+ virtual void cancelVibrate(int32_t deviceId) {}
+
+ virtual void disableDriverKeyRepeat() {}
+
+private:
+ std::string mPath = "/test";
+ std::string mName = "Test Device";
+ std::string mLocation = "test/0";
+ std::string mUniqueId = "test-id";
+};
+
+TEST(EvdevDeviceTest, testOverrideTime) {
+ auto node = std::make_shared<MockInputDeviceNode>();
+ auto device = std::make_unique<EvdevDevice>(node);
+ ASSERT_TRUE(device != nullptr);
+
+ // Send two timestamp override events before an input event.
+ nsecs_t when = 2ULL;
+ InputEvent msc1 = { when, EV_MSC, MSC_ANDROID_TIME_SEC, 1 };
+ InputEvent msc2 = { when, EV_MSC, MSC_ANDROID_TIME_USEC, 900000 };
+
+ // Send a key down and syn. Should get the overridden timestamp.
+ InputEvent keyDown = { when, EV_KEY, KEY_HOME, 1 };
+ InputEvent syn = { when, EV_SYN, SYN_REPORT, 0 };
+
+ // Send a key up, which should be at the reported timestamp.
+ InputEvent keyUp = { when, EV_KEY, KEY_HOME, 0 };
+
+ device->processInput(msc1, when);
+ device->processInput(msc2, when);
+ device->processInput(keyDown, when);
+ device->processInput(syn, when);
+ device->processInput(keyUp, when);
+
+ nsecs_t expectedWhen = s2ns(1) + us2ns(900000);
+ EXPECT_EQ(expectedWhen, keyDown.when);
+ EXPECT_EQ(expectedWhen, syn.when);
+ EXPECT_EQ(when, keyUp.when);
+}
+
+TEST(EvdevDeviceTest, testWrongClockCorrection) {
+ auto node = std::make_shared<MockInputDeviceNode>();
+ auto device = std::make_unique<EvdevDevice>(node);
+ ASSERT_TRUE(device != nullptr);
+
+ auto now = systemTime(SYSTEM_TIME_MONOTONIC);
+
+ // Input event that supposedly comes from 1 minute in the future. In
+ // reality, the timestamps would be much further off.
+ InputEvent event = { now + s2ns(60), EV_KEY, KEY_HOME, 1 };
+
+ device->processInput(event, now);
+
+ EXPECT_NEAR(now, event.when, ms2ns(TIMING_TOLERANCE_MS));
+}
+
+TEST(EvdevDeviceTest, testClockCorrectionOk) {
+ auto node = std::make_shared<MockInputDeviceNode>();
+ auto device = std::make_unique<EvdevDevice>(node);
+ ASSERT_TRUE(device != nullptr);
+
+ auto now = systemTime(SYSTEM_TIME_MONOTONIC);
+
+ // Input event from now, but will be reported as if it came early.
+ InputEvent event = { now, EV_KEY, KEY_HOME, 1 };
+
+ // event_time parameter is 11 seconds in the past, so it looks like we used
+ // the wrong clock.
+ device->processInput(event, now - s2ns(11));
+
+ EXPECT_NEAR(now, event.when, ms2ns(TIMING_TOLERANCE_MS));
+}
+
+} // namespace tests
+} // namespace android
diff --git a/libhardware/tests/input/evdev/InputHub_test.cpp b/libhardware/tests/input/evdev/InputHub_test.cpp
new file mode 100644
index 0000000..14f08fc
--- /dev/null
+++ b/libhardware/tests/input/evdev/InputHub_test.cpp
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "InputHub_test"
+//#define LOG_NDEBUG 0
+
+#include <linux/input.h>
+
+#include <chrono>
+#include <memory>
+#include <mutex>
+
+#include <gtest/gtest.h>
+
+#include <utils/Log.h>
+#include <utils/StopWatch.h>
+#include <utils/Timers.h>
+
+#include "InputHub.h"
+#include "TestHelpers.h"
+
+// # of milliseconds to fudge stopwatch measurements
+#define TIMING_TOLERANCE_MS 25
+#define NO_TIMEOUT (-1)
+
+namespace android {
+namespace tests {
+
+using namespace std::literals::chrono_literals;
+
+using InputCbFunc = std::function<void(std::shared_ptr<InputDeviceNode>, InputEvent&, nsecs_t)>;
+using DeviceCbFunc = std::function<void(std::shared_ptr<InputDeviceNode>)>;
+
+static const InputCbFunc kNoopInputCb = [](const std::shared_ptr<InputDeviceNode>&, InputEvent&, nsecs_t){};
+static const DeviceCbFunc kNoopDeviceCb = [](const std::shared_ptr<InputDeviceNode>&){};
+
+class TestInputCallback : public InputCallbackInterface {
+public:
+ TestInputCallback() :
+ mInputCb(kNoopInputCb), mDeviceAddedCb(kNoopDeviceCb), mDeviceRemovedCb(kNoopDeviceCb) {}
+ virtual ~TestInputCallback() = default;
+
+ void setInputCallback(const InputCbFunc& cb) { mInputCb = cb; }
+ void setDeviceAddedCallback(const DeviceCbFunc& cb) { mDeviceAddedCb = cb; }
+ void setDeviceRemovedCallback(const DeviceCbFunc& cb) { mDeviceRemovedCb = cb; }
+
+ virtual void onInputEvent(std::shared_ptr<InputDeviceNode> node, InputEvent& event,
+ nsecs_t event_time) override {
+ mInputCb(node, event, event_time);
+ }
+ virtual void onDeviceAdded(std::shared_ptr<InputDeviceNode> node) override {
+ mDeviceAddedCb(node);
+ }
+ virtual void onDeviceRemoved(std::shared_ptr<InputDeviceNode> node) override {
+ mDeviceRemovedCb(node);
+ }
+
+private:
+ InputCbFunc mInputCb;
+ DeviceCbFunc mDeviceAddedCb;
+ DeviceCbFunc mDeviceRemovedCb;
+};
+
+class InputHubTest : public ::testing::Test {
+ protected:
+ virtual void SetUp() {
+ mCallback = std::make_shared<TestInputCallback>();
+ mInputHub = std::make_shared<InputHub>(mCallback);
+ }
+
+ std::shared_ptr<TestInputCallback> mCallback;
+ std::shared_ptr<InputHub> mInputHub;
+};
+
+TEST_F(InputHubTest, testWake) {
+ // Call wake() after 100ms.
+ auto f = delay_async(100ms, [&]() { EXPECT_EQ(OK, mInputHub->wake()); });
+
+ StopWatch stopWatch("poll");
+ EXPECT_EQ(OK, mInputHub->poll());
+ int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
+
+ EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS);
+}
+
+TEST_F(InputHubTest, DISABLED_testDeviceAdded) {
+ auto tempDir = std::make_shared<TempDir>();
+ std::string pathname;
+ // Expect that this callback will run and set handle and pathname.
+ mCallback->setDeviceAddedCallback(
+ [&](std::shared_ptr<InputDeviceNode> node) {
+ pathname = node->getPath();
+ });
+
+ ASSERT_EQ(OK, mInputHub->registerDevicePath(tempDir->getName()));
+
+ // Create a new file in tempDir after 100ms.
+ std::unique_ptr<TempFile> tempFile;
+ std::mutex tempFileMutex;
+ auto f = delay_async(100ms,
+ [&]() {
+ std::lock_guard<std::mutex> lock(tempFileMutex);
+ tempFile.reset(tempDir->newTempFile());
+ });
+
+ StopWatch stopWatch("poll");
+ EXPECT_EQ(OK, mInputHub->poll());
+ int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
+
+
+ EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS);
+ std::lock_guard<std::mutex> lock(tempFileMutex);
+ EXPECT_EQ(tempFile->getName(), pathname);
+}
+
+TEST_F(InputHubTest, DISABLED_testDeviceRemoved) {
+ // Create a temp dir and file. Save its name and handle (to be filled in
+ // once InputHub scans the dir).
+ auto tempDir = std::make_unique<TempDir>();
+ auto deviceFile = std::unique_ptr<TempFile>(tempDir->newTempFile());
+ std::string tempFileName(deviceFile->getName());
+
+ std::shared_ptr<InputDeviceNode> tempNode;
+ // Expect that these callbacks will run for the above device file.
+ mCallback->setDeviceAddedCallback(
+ [&](std::shared_ptr<InputDeviceNode> node) {
+ tempNode = node;
+ });
+ mCallback->setDeviceRemovedCallback(
+ [&](std::shared_ptr<InputDeviceNode> node) {
+ EXPECT_EQ(tempNode, node);
+ });
+
+ ASSERT_EQ(OK, mInputHub->registerDevicePath(tempDir->getName()));
+ // Ensure that tempDir was scanned to find the device.
+ ASSERT_TRUE(tempNode != nullptr);
+
+ auto f = delay_async(100ms, [&]() { deviceFile.reset(); });
+
+ StopWatch stopWatch("poll");
+ EXPECT_EQ(OK, mInputHub->poll());
+ int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
+
+ EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS);
+}
+
+TEST_F(InputHubTest, DISABLED_testInputEvent) {
+ // Create a temp dir and file. Save its name and handle (to be filled in
+ // once InputHub scans the dir.)
+ auto tempDir = std::make_unique<TempDir>();
+ auto deviceFile = std::unique_ptr<TempFile>(tempDir->newTempFile());
+ std::string tempFileName(deviceFile->getName());
+
+ // Send a key event corresponding to HOME.
+ struct input_event iev;
+ iev.time = { 1, 0 };
+ iev.type = EV_KEY;
+ iev.code = KEY_HOME;
+ iev.value = 0x01;
+
+ auto inputDelayMs = 100ms;
+ auto f = delay_async(inputDelayMs, [&] {
+ ssize_t nWrite = TEMP_FAILURE_RETRY(write(deviceFile->getFd(), &iev, sizeof(iev)));
+
+ ASSERT_EQ(static_cast<ssize_t>(sizeof(iev)), nWrite) << "could not write to "
+ << deviceFile->getFd() << ". errno: " << errno;
+ });
+
+ // Expect this callback to run when the input event is read.
+ nsecs_t expectedWhen = systemTime(CLOCK_MONOTONIC) + ms2ns(inputDelayMs.count());
+ mCallback->setInputCallback(
+ [&](std::shared_ptr<InputDeviceNode> node, InputEvent& event, nsecs_t event_time) {
+ EXPECT_NEAR(expectedWhen, event_time, ms2ns(TIMING_TOLERANCE_MS));
+ EXPECT_EQ(s2ns(1), event.when);
+ EXPECT_EQ(tempFileName, node->getPath());
+ EXPECT_EQ(EV_KEY, event.type);
+ EXPECT_EQ(KEY_HOME, event.code);
+ EXPECT_EQ(0x01, event.value);
+ });
+ ASSERT_EQ(OK, mInputHub->registerDevicePath(tempDir->getName()));
+
+ StopWatch stopWatch("poll");
+ EXPECT_EQ(OK, mInputHub->poll());
+ int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
+
+ EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS);
+}
+
+TEST_F(InputHubTest, DISABLED_testCallbackOrder) {
+ // Create two "devices": one to receive input and the other to go away.
+ auto tempDir = std::make_unique<TempDir>();
+ auto deviceFile1 = std::unique_ptr<TempFile>(tempDir->newTempFile());
+ auto deviceFile2 = std::unique_ptr<TempFile>(tempDir->newTempFile());
+ std::string tempFileName(deviceFile2->getName());
+
+ bool inputCallbackFinished = false, deviceCallbackFinished = false;
+
+ // Setup the callback for input events. Should run before the device
+ // callback.
+ mCallback->setInputCallback(
+ [&](std::shared_ptr<InputDeviceNode>, InputEvent&, nsecs_t) {
+ ASSERT_FALSE(deviceCallbackFinished);
+ inputCallbackFinished = true;
+ });
+
+ // Setup the callback for device removal. Should run after the input
+ // callback.
+ mCallback->setDeviceRemovedCallback(
+ [&](std::shared_ptr<InputDeviceNode> node) {
+ ASSERT_TRUE(inputCallbackFinished)
+ << "input callback did not run before device changed callback";
+ // Make sure the correct device was removed.
+ EXPECT_EQ(tempFileName, node->getPath());
+ deviceCallbackFinished = true;
+ });
+ ASSERT_EQ(OK, mInputHub->registerDevicePath(tempDir->getName()));
+
+ auto f = delay_async(100ms,
+ [&]() {
+ // Delete the second device file first.
+ deviceFile2.reset();
+
+ // Then inject an input event into the first device.
+ struct input_event iev;
+ iev.time = { 1, 0 };
+ iev.type = EV_KEY;
+ iev.code = KEY_HOME;
+ iev.value = 0x01;
+
+ ssize_t nWrite = TEMP_FAILURE_RETRY(write(deviceFile1->getFd(), &iev, sizeof(iev)));
+
+ ASSERT_EQ(static_cast<ssize_t>(sizeof(iev)), nWrite) << "could not write to "
+ << deviceFile1->getFd() << ". errno: " << errno;
+ });
+
+ StopWatch stopWatch("poll");
+ EXPECT_EQ(OK, mInputHub->poll());
+ int32_t elapsedMillis = ns2ms(stopWatch.elapsedTime());
+
+ EXPECT_NEAR(100, elapsedMillis, TIMING_TOLERANCE_MS);
+ EXPECT_TRUE(inputCallbackFinished);
+ EXPECT_TRUE(deviceCallbackFinished);
+}
+
+} // namespace tests
+} // namespace android
diff --git a/libhardware/tests/input/evdev/TestHelpers.cpp b/libhardware/tests/input/evdev/TestHelpers.cpp
new file mode 100644
index 0000000..63b579e
--- /dev/null
+++ b/libhardware/tests/input/evdev/TestHelpers.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "TestHelpers"
+#define LOG_NDEBUG 0
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <utils/Log.h>
+
+#include "TestHelpers.h"
+
+namespace android {
+
+static const char kTmpDirTemplate[] = "/data/local/tmp/XXXXXX";
+
+TempFile::TempFile(const char* path) {
+ bool needTrailingSlash = path[strlen(path) - 1] != '/';
+ // name = path + XXXXXX + \0
+ size_t nameLen = strlen(path) + 6 + 1;
+ if (needTrailingSlash) nameLen++;
+
+ mName = new char[nameLen];
+ strcpy(mName, path);
+ if (needTrailingSlash) {
+ strcat(mName, "/");
+ }
+ strcat(mName, "XXXXXX");
+ mName = mktemp(mName);
+ LOG_FATAL_IF(mName == nullptr, "could not create temp filename %s. errno=%d", mName, errno);
+
+ int result = TEMP_FAILURE_RETRY(mkfifo(mName, S_IRWXU));
+ LOG_FATAL_IF(result < 0, "could not create fifo %s. errno=%d", mName, errno);
+
+ mFd = TEMP_FAILURE_RETRY(open(mName, O_RDWR | O_NONBLOCK));
+ LOG_FATAL_IF(mFd < 0, "could not open fifo %s. errno=%d", mName, errno);
+}
+
+TempFile::~TempFile() {
+ if (unlink(mName) < 0) {
+ ALOGE("could not unlink %s. errno=%d", mName, errno);
+ }
+ if (close(mFd) < 0) {
+ ALOGE("could not close %d. errno=%d", mFd, errno);
+ }
+ delete[] mName;
+}
+
+TempDir::TempDir() {
+ mName = new char[sizeof(kTmpDirTemplate)];
+ strcpy(mName, kTmpDirTemplate);
+ mName = mkdtemp(mName);
+ LOG_FATAL_IF(mName == nullptr, "could not allocate tempdir %s", mName);
+}
+
+TempDir::~TempDir() {
+ auto tmpDir = opendir(mName);
+ while (auto entry = readdir(tmpDir)) {
+ if (strcmp(entry->d_name, ".") == 0 ||
+ strcmp(entry->d_name, "..") == 0) {
+ continue;
+ }
+ ALOGD("stale file %s, removing", entry->d_name);
+ unlink(entry->d_name);
+ }
+ closedir(tmpDir);
+ rmdir(mName);
+ delete mName;
+}
+
+TempFile* TempDir::newTempFile() {
+ return new TempFile(mName);
+}
+
+} // namespace android
diff --git a/libhardware/tests/input/evdev/TestHelpers.h b/libhardware/tests/input/evdev/TestHelpers.h
new file mode 100644
index 0000000..d26adfb
--- /dev/null
+++ b/libhardware/tests/input/evdev/TestHelpers.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TEST_HELPERS_H_
+#define ANDROID_TEST_HELPERS_H_
+
+#include <future>
+#include <thread>
+
+namespace android {
+
+/**
+ * Runs the given function after the specified delay.
+ * NOTE: if the std::future returned from std::async is not bound, this function
+ * will block until the task completes. This is almost certainly NOT what you
+ * want, so save the return value from delay_async into a variable:
+ *
+ * auto f = delay_async(100ms, []{ ALOGD("Hello world"); });
+ */
+template<class Function, class Duration>
+decltype(auto) delay_async(Duration&& delay, Function&& task)
+{
+ return std::async(std::launch::async, [=]{ std::this_thread::sleep_for(delay); task(); });
+}
+
+/**
+ * Creates and opens a temporary file at the given path. The file is unlinked
+ * and closed in the destructor.
+ */
+class TempFile {
+public:
+ explicit TempFile(const char* path);
+ ~TempFile();
+
+ // No copy or assign
+ TempFile(const TempFile&) = delete;
+ TempFile& operator=(const TempFile&) = delete;
+
+ const char* getName() const { return mName; }
+ int getFd() const { return mFd; }
+
+private:
+ char* mName;
+ int mFd;
+};
+
+/**
+ * Creates a temporary directory that can create temporary files. The directory
+ * is emptied and deleted in the destructor.
+ */
+class TempDir {
+public:
+ TempDir();
+ ~TempDir();
+
+ // No copy or assign
+ TempDir(const TempDir&) = delete;
+ TempDir& operator=(const TempDir&) = delete;
+
+ const char* getName() const { return mName; }
+
+ TempFile* newTempFile();
+
+private:
+ char* mName;
+};
+
+} // namespace android
+
+#endif // ANDROID_TEST_HELPERS_H_
diff --git a/libhardware/tests/keymaster/Android.mk b/libhardware/tests/keymaster/Android.mk
new file mode 100644
index 0000000..0c11795
--- /dev/null
+++ b/libhardware/tests/keymaster/Android.mk
@@ -0,0 +1,19 @@
+# Build the keymaster unit tests
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ keymaster_test.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ liblog \
+ libutils \
+ libcrypto \
+ libhardware \
+
+LOCAL_MODULE := keymaster_test
+
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_NATIVE_TEST)
diff --git a/libhardware/tests/keymaster/keymaster_test.cpp b/libhardware/tests/keymaster/keymaster_test.cpp
new file mode 100644
index 0000000..3040a5c
--- /dev/null
+++ b/libhardware/tests/keymaster/keymaster_test.cpp
@@ -0,0 +1,1284 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <fstream>
+#include <iostream>
+
+#include <gtest/gtest.h>
+
+#include <openssl/bn.h>
+#include <openssl/evp.h>
+#include <openssl/x509.h>
+
+#define LOG_TAG "keymaster_test"
+#include <utils/Log.h>
+
+#include <UniquePtr.h>
+
+#include <hardware/keymaster0.h>
+
+namespace android {
+
+class UniqueBlob : public UniquePtr<uint8_t[]> {
+public:
+ explicit UniqueBlob(size_t length) :
+ mLength(length) {
+ }
+
+ UniqueBlob(uint8_t* bytes, size_t length) :
+ UniquePtr<uint8_t[]>(bytes), mLength(length) {
+ }
+
+ bool operator==(const UniqueBlob &other) const {
+ if (other.length() != mLength) {
+ return false;
+ }
+
+ const uint8_t* mine = get();
+ const uint8_t* theirs = other.get();
+
+ for (size_t i = 0; i < mLength; i++) {
+ if (mine[i] != theirs[i]) {
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ size_t length() const {
+ return mLength;
+ }
+
+ friend std::ostream &operator<<(std::ostream &stream, const UniqueBlob& blob);
+
+private:
+ size_t mLength;
+};
+
+std::ostream &operator<<(std::ostream &stream, const UniqueBlob& blob) {
+ const size_t length = blob.mLength;
+ stream << "Blob length=" << length << " < ";
+
+ const uint8_t* data = blob.get();
+ for (size_t i = 0; i < length; i++) {
+ stream << std::hex << std::setw(2) << std::setfill('0')
+ << static_cast<unsigned int>(data[i]) << ' ';
+ }
+ stream << '>' << std::endl;
+
+ return stream;
+}
+
+class UniqueKey : public UniqueBlob {
+public:
+ UniqueKey(keymaster0_device_t** dev, uint8_t* bytes, size_t length) :
+ UniqueBlob(bytes, length), mDevice(dev) {
+ }
+
+ ~UniqueKey() {
+ if (mDevice != NULL && *mDevice != NULL) {
+ keymaster0_device_t* dev = *mDevice;
+ if (dev->delete_keypair != NULL) {
+ dev->delete_keypair(dev, get(), length());
+ }
+ }
+ }
+
+private:
+ keymaster0_device_t** mDevice;
+};
+
+class UniqueReadOnlyBlob {
+public:
+ UniqueReadOnlyBlob(uint8_t* data, size_t dataSize) :
+ mDataSize(dataSize) {
+ int pageSize = sysconf(_SC_PAGE_SIZE);
+ if (pageSize == -1) {
+ return;
+ }
+
+ int fd = open("/dev/zero", O_RDONLY);
+ if (fd == -1) {
+ return;
+ }
+
+ mBufferSize = (dataSize + pageSize - 1) & ~(pageSize - 1);
+ uint8_t* buffer = (uint8_t*) mmap(NULL, mBufferSize, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE, fd, 0);
+ close(fd);
+
+ if (buffer == NULL) {
+ return;
+ }
+
+ memcpy(buffer, data, dataSize);
+ if (mprotect(buffer, mBufferSize, PROT_READ) == -1) {
+ munmap(buffer, mBufferSize);
+ return;
+ }
+
+ mBuffer = buffer;
+ }
+
+ ~UniqueReadOnlyBlob() {
+ munmap(mBuffer, mBufferSize);
+ }
+
+ uint8_t* get() const {
+ return mBuffer;
+ }
+
+ size_t length() const {
+ return mDataSize;
+ }
+
+private:
+ uint8_t* mBuffer;
+ size_t mBufferSize;
+ size_t mDataSize;
+};
+
+struct BIGNUM_Delete {
+ void operator()(BIGNUM* p) const {
+ BN_free(p);
+ }
+};
+typedef UniquePtr<BIGNUM, BIGNUM_Delete> Unique_BIGNUM;
+
+struct EVP_PKEY_Delete {
+ void operator()(EVP_PKEY* p) const {
+ EVP_PKEY_free(p);
+ }
+};
+typedef UniquePtr<EVP_PKEY, EVP_PKEY_Delete> Unique_EVP_PKEY;
+
+struct PKCS8_PRIV_KEY_INFO_Delete {
+ void operator()(PKCS8_PRIV_KEY_INFO* p) const {
+ PKCS8_PRIV_KEY_INFO_free(p);
+ }
+};
+typedef UniquePtr<PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_Delete> Unique_PKCS8_PRIV_KEY_INFO;
+
+struct RSA_Delete {
+ void operator()(RSA* p) const {
+ RSA_free(p);
+ }
+};
+typedef UniquePtr<RSA, RSA_Delete> Unique_RSA;
+
+struct EC_KEY_Delete {
+ void operator()(EC_KEY* p) const {
+ EC_KEY_free(p);
+ }
+};
+typedef UniquePtr<EC_KEY, EC_KEY_Delete> Unique_EC_KEY;
+
+
+/*
+ * DER-encoded PKCS#8 format RSA key. Generated using:
+ *
+ * openssl genrsa 2048 | openssl pkcs8 -topk8 -nocrypt -outform der | recode ../x1
+ */
+static uint8_t TEST_RSA_KEY_1[] = {
+ 0x30, 0x82, 0x04, 0xBE, 0x02, 0x01, 0x00, 0x30, 0x0D, 0x06, 0x09, 0x2A,
+ 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
+ 0x04, 0xA8, 0x30, 0x82, 0x04, 0xA4, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01,
+ 0x01, 0x00, 0xD8, 0x58, 0xD4, 0x9F, 0xC0, 0xE8, 0xF0, 0xFF, 0x87, 0x27,
+ 0x43, 0xE6, 0x2E, 0xE6, 0x9A, 0x42, 0x3B, 0x39, 0x94, 0x84, 0x43, 0x55,
+ 0x8D, 0x20, 0x5B, 0x71, 0x88, 0xE6, 0xD1, 0x62, 0xC8, 0xF2, 0x20, 0xD0,
+ 0x75, 0x13, 0x83, 0xA3, 0x5D, 0x19, 0xA8, 0x62, 0xD0, 0x5F, 0x3E, 0x8A,
+ 0x7C, 0x0E, 0x26, 0xA9, 0xFF, 0xB2, 0x5E, 0x63, 0xAA, 0x3C, 0x8D, 0x13,
+ 0x41, 0xAA, 0xD5, 0x03, 0x01, 0x01, 0x53, 0xC9, 0x02, 0x1C, 0xEC, 0xE8,
+ 0xC4, 0x70, 0x3F, 0x43, 0xE5, 0x51, 0xD0, 0x6E, 0x52, 0x0B, 0xC4, 0x0A,
+ 0xA3, 0x61, 0xDE, 0xE3, 0x72, 0x0C, 0x94, 0xF1, 0x1C, 0x2D, 0x36, 0x77,
+ 0xBB, 0x16, 0xA8, 0x63, 0x4B, 0xD1, 0x07, 0x00, 0x42, 0x2D, 0x2B, 0x10,
+ 0x80, 0x45, 0xF3, 0x0C, 0xF9, 0xC5, 0xAC, 0xCC, 0x64, 0x87, 0xFD, 0x5D,
+ 0xC8, 0x51, 0xD4, 0x1C, 0x9E, 0x6E, 0x9B, 0xC4, 0x27, 0x5E, 0x73, 0xA7,
+ 0x2A, 0xF6, 0x90, 0x42, 0x0C, 0x34, 0x93, 0xB7, 0x02, 0x19, 0xA9, 0x64,
+ 0x6C, 0x46, 0x3B, 0x40, 0x02, 0x2F, 0x54, 0x69, 0x79, 0x26, 0x7D, 0xF6,
+ 0x85, 0x90, 0x01, 0xD0, 0x21, 0x07, 0xD0, 0x14, 0x00, 0x65, 0x9C, 0xAC,
+ 0x24, 0xE8, 0x78, 0x42, 0x3B, 0x90, 0x75, 0x19, 0x55, 0x11, 0x4E, 0xD9,
+ 0xE6, 0x97, 0x87, 0xBC, 0x8D, 0x2C, 0x9B, 0xF0, 0x1F, 0x14, 0xEB, 0x6A,
+ 0x57, 0xCE, 0x78, 0xAD, 0xCE, 0xD9, 0xFB, 0xB9, 0xA1, 0xEF, 0x0C, 0x1F,
+ 0xDD, 0xE3, 0x5B, 0x73, 0xA0, 0xEC, 0x37, 0x9C, 0xE1, 0xFD, 0x86, 0x28,
+ 0xC3, 0x4A, 0x42, 0xD0, 0xA3, 0xFE, 0x57, 0x09, 0x29, 0xD8, 0xF6, 0xEC,
+ 0xE3, 0xC0, 0x71, 0x7C, 0x29, 0x27, 0xC2, 0xD1, 0x3E, 0x22, 0xBC, 0xBD,
+ 0x5A, 0x85, 0x41, 0xF6, 0x15, 0xDA, 0x0C, 0x58, 0x5A, 0x61, 0x5B, 0x78,
+ 0xB8, 0xAA, 0xEC, 0x5C, 0x1C, 0x79, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02,
+ 0x82, 0x01, 0x00, 0x1D, 0x10, 0x31, 0xE0, 0x14, 0x26, 0x36, 0xD9, 0xDC,
+ 0xEA, 0x25, 0x70, 0xF2, 0xB3, 0xFF, 0xDD, 0x0D, 0xDF, 0xBA, 0x57, 0xDA,
+ 0x43, 0xCF, 0xE5, 0x9C, 0xE3, 0x2F, 0xA4, 0xF2, 0x53, 0xF6, 0xF2, 0xAF,
+ 0xFD, 0xD0, 0xFC, 0x82, 0x1E, 0x9C, 0x0F, 0x2A, 0x53, 0xBB, 0xF2, 0x4F,
+ 0x90, 0x83, 0x01, 0xD3, 0xA7, 0xDA, 0xB5, 0xB7, 0x80, 0x64, 0x0A, 0x26,
+ 0x59, 0x83, 0xE4, 0xD3, 0x20, 0xC8, 0x2D, 0xC9, 0x77, 0xA3, 0x55, 0x07,
+ 0x6E, 0x6D, 0x95, 0x36, 0xAA, 0x84, 0x4F, 0xED, 0x54, 0x24, 0xA9, 0x77,
+ 0xF8, 0x85, 0xE2, 0x4B, 0xF2, 0xFA, 0x0B, 0x3E, 0xA6, 0xF5, 0x46, 0x0D,
+ 0x9F, 0x1F, 0xFE, 0xF7, 0x37, 0xFF, 0xA3, 0x60, 0xF1, 0x63, 0xF2, 0x75,
+ 0x6A, 0x8E, 0x10, 0xD7, 0x89, 0xD2, 0xB3, 0xFF, 0x76, 0xA5, 0xBA, 0xAF,
+ 0x0A, 0xBE, 0x32, 0x5F, 0xF0, 0x48, 0x48, 0x4B, 0x9C, 0x9A, 0x3D, 0x12,
+ 0xA7, 0xD2, 0x07, 0xC7, 0x59, 0x32, 0x94, 0x95, 0x65, 0x2F, 0x87, 0x34,
+ 0x76, 0xBA, 0x7C, 0x08, 0x4B, 0xAB, 0xA6, 0x24, 0xDF, 0x64, 0xDB, 0x48,
+ 0x63, 0x42, 0x06, 0xE2, 0x2C, 0x3D, 0xFB, 0xE5, 0x47, 0x81, 0x94, 0x98,
+ 0xF7, 0x32, 0x4B, 0x28, 0xEB, 0x42, 0xB8, 0xE9, 0x8E, 0xFC, 0xC9, 0x43,
+ 0xC9, 0x47, 0xE6, 0xE7, 0x1C, 0xDC, 0x71, 0xEF, 0x4D, 0x8A, 0xB1, 0xFC,
+ 0x45, 0x37, 0xEC, 0xB3, 0x16, 0x88, 0x5B, 0xE2, 0xEC, 0x8B, 0x6B, 0x75,
+ 0x16, 0xBE, 0x6B, 0xF8, 0x2C, 0xF8, 0xC9, 0xD1, 0xF7, 0x55, 0x87, 0x57,
+ 0x5F, 0xDE, 0xF4, 0x7E, 0x72, 0x13, 0x06, 0x2A, 0x21, 0xB7, 0x78, 0x21,
+ 0x05, 0xFD, 0xE2, 0x5F, 0x7B, 0x7C, 0xF0, 0x26, 0x2B, 0x75, 0x7F, 0x68,
+ 0xF9, 0xA6, 0x98, 0xFD, 0x54, 0x0E, 0xCC, 0x22, 0x41, 0x7F, 0x29, 0x81,
+ 0x2F, 0xA3, 0x3C, 0x3D, 0x64, 0xC8, 0x41, 0x02, 0x81, 0x81, 0x00, 0xFA,
+ 0xFA, 0xE4, 0x2E, 0x30, 0xF0, 0x7A, 0x8D, 0x95, 0xB8, 0x39, 0x58, 0x27,
+ 0x0F, 0x89, 0x0C, 0xDF, 0xFE, 0x2F, 0x55, 0x3B, 0x6F, 0xDD, 0x5F, 0x12,
+ 0xB3, 0xD1, 0xCF, 0x5B, 0x8D, 0xB6, 0x10, 0x1C, 0x87, 0x0C, 0x30, 0x89,
+ 0x2D, 0xBB, 0xB8, 0xA1, 0x78, 0x0F, 0x54, 0xA6, 0x36, 0x46, 0x05, 0x8B,
+ 0x5A, 0xFF, 0x48, 0x03, 0x13, 0xAE, 0x95, 0x96, 0x5D, 0x6C, 0xDA, 0x5D,
+ 0xF7, 0xAD, 0x1D, 0x33, 0xED, 0x23, 0xF5, 0x4B, 0x03, 0x78, 0xE7, 0x50,
+ 0xD1, 0x2D, 0x95, 0x22, 0x35, 0x02, 0x5B, 0x4A, 0x4E, 0x73, 0xC9, 0xB7,
+ 0x05, 0xC4, 0x21, 0x86, 0x1F, 0x1E, 0x40, 0x83, 0xBC, 0x8A, 0x3A, 0x95,
+ 0x24, 0x62, 0xF4, 0x58, 0x38, 0x64, 0x4A, 0x89, 0x8A, 0x27, 0x59, 0x12,
+ 0x9D, 0x21, 0xC3, 0xA6, 0x42, 0x1E, 0x2A, 0x3F, 0xD8, 0x65, 0x1F, 0x6E,
+ 0x3E, 0x4D, 0x5C, 0xCC, 0xEA, 0x8E, 0x15, 0x02, 0x81, 0x81, 0x00, 0xDC,
+ 0xAC, 0x9B, 0x00, 0xDB, 0xF9, 0xB2, 0xBF, 0xC4, 0x5E, 0xB6, 0xB7, 0x63,
+ 0xEB, 0x13, 0x4B, 0xE2, 0xA6, 0xC8, 0x72, 0x90, 0xD8, 0xC2, 0x33, 0x33,
+ 0xF0, 0x66, 0x75, 0xBD, 0x50, 0x7C, 0xA4, 0x8F, 0x82, 0xFB, 0xFF, 0x44,
+ 0x3B, 0xE7, 0x15, 0x3A, 0x0C, 0x7A, 0xF8, 0x92, 0x86, 0x4A, 0x79, 0x32,
+ 0x08, 0x82, 0x1D, 0x6A, 0xBA, 0xAD, 0x8A, 0xB3, 0x3D, 0x7F, 0xA5, 0xB4,
+ 0x6F, 0x67, 0x86, 0x7E, 0xB2, 0x9C, 0x2A, 0xF6, 0x7C, 0x49, 0x21, 0xC5,
+ 0x3F, 0x00, 0x3F, 0x9B, 0xF7, 0x0F, 0x6C, 0x35, 0x80, 0x75, 0x73, 0xC0,
+ 0xF8, 0x3E, 0x30, 0x5F, 0x74, 0x2F, 0x15, 0x41, 0xEA, 0x0F, 0xCE, 0x0E,
+ 0x18, 0x17, 0x68, 0xBA, 0xC4, 0x29, 0xF2, 0xE2, 0x2C, 0x1D, 0x55, 0x83,
+ 0xB6, 0x64, 0x2E, 0x03, 0x12, 0xA4, 0x0D, 0xBF, 0x4F, 0x2E, 0xBE, 0x7C,
+ 0x41, 0xD9, 0xCD, 0xD0, 0x52, 0x91, 0xD5, 0x02, 0x81, 0x81, 0x00, 0xD4,
+ 0x55, 0xEB, 0x32, 0xC1, 0x28, 0xD3, 0x26, 0x72, 0x22, 0xB8, 0x31, 0x42,
+ 0x6A, 0xBC, 0x52, 0x6E, 0x37, 0x48, 0xA8, 0x5D, 0x6E, 0xD8, 0xE5, 0x14,
+ 0x97, 0x99, 0xCC, 0x4A, 0xF2, 0xEB, 0xB3, 0x59, 0xCF, 0x4F, 0x9A, 0xC8,
+ 0x94, 0x2E, 0x9B, 0x97, 0xD0, 0x51, 0x78, 0x16, 0x5F, 0x18, 0x82, 0x9C,
+ 0x51, 0xD2, 0x64, 0x84, 0x65, 0xE4, 0x70, 0x9E, 0x14, 0x50, 0x81, 0xB6,
+ 0xBA, 0x52, 0x75, 0xC0, 0x76, 0xC2, 0xD3, 0x46, 0x31, 0x9B, 0xDA, 0x67,
+ 0xDF, 0x71, 0x27, 0x19, 0x17, 0xAB, 0xF4, 0xBC, 0x3A, 0xFF, 0x6F, 0x0B,
+ 0x2F, 0x0F, 0xAE, 0x25, 0x20, 0xB2, 0xA1, 0x76, 0x52, 0xCE, 0xC7, 0x9D,
+ 0x62, 0x79, 0x6D, 0xAC, 0x2D, 0x99, 0x7C, 0x0E, 0x3D, 0x19, 0xE9, 0x1B,
+ 0xFC, 0x60, 0x92, 0x7C, 0x58, 0xB7, 0xD8, 0x9A, 0xC7, 0x63, 0x56, 0x62,
+ 0x18, 0xC7, 0xAE, 0xD9, 0x97, 0x1F, 0xB9, 0x02, 0x81, 0x81, 0x00, 0x91,
+ 0x40, 0xC4, 0x1E, 0x82, 0xAD, 0x0F, 0x6D, 0x8E, 0xD2, 0x51, 0x2E, 0xD1,
+ 0x84, 0x30, 0x85, 0x68, 0xC1, 0x23, 0x7B, 0xD5, 0xBF, 0xF7, 0xC4, 0x40,
+ 0x51, 0xE2, 0xFF, 0x69, 0x07, 0x8B, 0xA3, 0xBE, 0x1B, 0x17, 0xC8, 0x64,
+ 0x9F, 0x91, 0x71, 0xB5, 0x6D, 0xF5, 0x9B, 0x9C, 0xC6, 0xEC, 0x4A, 0x6E,
+ 0x16, 0x8F, 0x9E, 0xD1, 0x5B, 0xE3, 0x53, 0x42, 0xBC, 0x1E, 0x43, 0x72,
+ 0x4B, 0x4A, 0x37, 0x8B, 0x3A, 0x01, 0xF5, 0x7D, 0x9D, 0x3D, 0x7E, 0x0F,
+ 0x19, 0x73, 0x0E, 0x6B, 0x98, 0xE9, 0xFB, 0xEE, 0x13, 0x8A, 0x3C, 0x11,
+ 0x2E, 0xD5, 0xB0, 0x7D, 0x84, 0x3A, 0x61, 0xA1, 0xAB, 0x71, 0x8F, 0xCE,
+ 0x53, 0x29, 0x45, 0x74, 0x7A, 0x1E, 0xAA, 0x93, 0x19, 0x3A, 0x8D, 0xC9,
+ 0x4E, 0xCB, 0x0E, 0x46, 0x53, 0x84, 0xCC, 0xCF, 0xBA, 0x4D, 0x28, 0x71,
+ 0x1D, 0xDF, 0x41, 0xCB, 0xF8, 0x2D, 0xA9, 0x02, 0x81, 0x80, 0x04, 0x8B,
+ 0x4A, 0xEA, 0xBD, 0x39, 0x0B, 0x96, 0xC5, 0x1D, 0xA4, 0x47, 0xFD, 0x46,
+ 0xD2, 0x8A, 0xEA, 0x2A, 0xF3, 0x9D, 0x3A, 0x7E, 0x16, 0x74, 0xFC, 0x13,
+ 0xDE, 0x4D, 0xA9, 0x85, 0x42, 0x33, 0x02, 0x92, 0x0B, 0xB6, 0xDB, 0x7E,
+ 0xEA, 0x85, 0xC2, 0x94, 0x43, 0x52, 0x37, 0x5A, 0x77, 0xAB, 0xCB, 0x61,
+ 0x88, 0xDE, 0xF8, 0xFA, 0xDB, 0xE8, 0x0B, 0x95, 0x7D, 0x39, 0x19, 0xA2,
+ 0x89, 0xB9, 0x32, 0xB2, 0x50, 0x38, 0xF7, 0x88, 0x69, 0xFD, 0xA4, 0x63,
+ 0x1F, 0x9B, 0x03, 0xD8, 0xA6, 0x7A, 0x05, 0x76, 0x02, 0x28, 0x93, 0x82,
+ 0x73, 0x7F, 0x14, 0xCC, 0xBE, 0x29, 0x10, 0xAD, 0x8A, 0x2E, 0xAC, 0xED,
+ 0x11, 0xA7, 0x72, 0x7C, 0x60, 0x78, 0x72, 0xFB, 0x78, 0x20, 0x18, 0xC9,
+ 0x7E, 0x63, 0xAD, 0x55, 0x54, 0x51, 0xDB, 0x9F, 0x7B, 0xD4, 0x8F, 0xB2,
+ 0xDE, 0x3B, 0xF1, 0x70, 0x23, 0xE5,
+};
+
+/*
+ * DER-encoded PKCS#8 format EC key. Generated using:
+ *
+ * openssl ecparam -name prime256v1 -genkey -noout | openssl pkcs8 -topk8 -nocrypt -outform der | recode ../x1
+ */
+static uint8_t TEST_EC_KEY_1[] = {
+ 0x30, 0x81, 0x87, 0x02, 0x01, 0x00, 0x30, 0x13, 0x06, 0x07, 0x2A, 0x86,
+ 0x48, 0xCE, 0x3D, 0x02, 0x01, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D,
+ 0x03, 0x01, 0x07, 0x04, 0x6D, 0x30, 0x6B, 0x02, 0x01, 0x01, 0x04, 0x20,
+ 0x25, 0xAC, 0x77, 0x2B, 0x04, 0x33, 0xC8, 0x16, 0x59, 0xA3, 0xC7, 0xE7,
+ 0x11, 0x42, 0xD0, 0x11, 0x71, 0x30, 0x7B, 0xB8, 0xD2, 0x67, 0xFF, 0x9C,
+ 0x5F, 0x50, 0x2E, 0xAB, 0x67, 0xD4, 0x17, 0x51, 0xA1, 0x44, 0x03, 0x42,
+ 0x00, 0x04, 0xCF, 0xCE, 0xB8, 0x7F, 0x88, 0x36, 0xC4, 0xF8, 0x51, 0x29,
+ 0xE2, 0xA7, 0x21, 0xC3, 0x3B, 0xFF, 0x88, 0xE3, 0x87, 0x98, 0xD1, 0xA6,
+ 0x4B, 0xB3, 0x4B, 0xD5, 0x44, 0xF8, 0xE0, 0x43, 0x6B, 0x50, 0x74, 0xFB,
+ 0xB0, 0xAD, 0x41, 0x1C, 0x11, 0x9D, 0xC6, 0x1E, 0x83, 0x8C, 0x49, 0xCA,
+ 0xBE, 0xC6, 0xCE, 0xB6, 0xC9, 0xA1, 0xBF, 0x69, 0xA9, 0xA0, 0xA3, 0x80,
+ 0x14, 0x39, 0x57, 0x94, 0xDA, 0x5D
+};
+
+
+/*
+ * Generated using keys on the keyboard and lack of imagination.
+ */
+static unsigned char BOGUS_KEY_1[] = { 0xFF, 0xFF, 0xFF, 0xFF };
+
+
+class KeymasterBaseTest : public ::testing::Test {
+public:
+ static void SetUpTestCase() {
+ const hw_module_t* mod;
+ ASSERT_EQ(0, hw_get_module_by_class(KEYSTORE_HARDWARE_MODULE_ID, NULL, &mod))
+ << "Should be able to find a keymaster hardware module";
+
+ std::cout << "Using keymaster module: " << mod->name << std::endl;
+
+ ASSERT_EQ(0, keymaster0_open(mod, &sDevice))
+ << "Should be able to open the keymaster device";
+
+ ASSERT_EQ(KEYMASTER_MODULE_API_VERSION_0_2, mod->module_api_version)
+ << "Keymaster should implement API version 2";
+
+ ASSERT_TRUE(sDevice->generate_keypair != NULL)
+ << "Should implement generate_keypair";
+
+ ASSERT_TRUE(sDevice->import_keypair != NULL)
+ << "Should implement import_keypair";
+
+ ASSERT_TRUE(sDevice->get_keypair_public != NULL)
+ << "Should implement get_keypair_public";
+
+ ASSERT_TRUE(sDevice->sign_data != NULL)
+ << "Should implement sign_data";
+
+ ASSERT_TRUE(sDevice->verify_data != NULL)
+ << "Should implement verify_data";
+ }
+
+ static void TearDownTestCase() {
+ ASSERT_EQ(0, keymaster0_close(sDevice));
+ }
+
+protected:
+ static keymaster0_device_t* sDevice;
+};
+
+keymaster0_device_t* KeymasterBaseTest::sDevice = NULL;
+
+class KeymasterTest : public KeymasterBaseTest {
+};
+
+class KeymasterAllTypesTest : public KeymasterBaseTest,
+ public ::testing::WithParamInterface<keymaster_keypair_t> {
+};
+
+class KeymasterGenerateRSATest : public KeymasterBaseTest,
+ public ::testing::WithParamInterface<uint32_t> {
+};
+
+class KeymasterGenerateDSATest : public KeymasterBaseTest,
+ public ::testing::WithParamInterface<uint32_t> {
+};
+
+class KeymasterGenerateECTest : public KeymasterBaseTest,
+ public ::testing::WithParamInterface<uint32_t> {
+};
+
+TEST_P(KeymasterGenerateRSATest, GenerateKeyPair_RSA_Success) {
+ keymaster_keypair_t key_type = TYPE_RSA;
+ keymaster_rsa_keygen_params_t params = {
+ .modulus_size = GetParam(),
+ .public_exponent = RSA_F4,
+ };
+
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(0,
+ sDevice->generate_keypair(sDevice, key_type, ¶ms, &key_blob, &key_blob_length))
+ << "Should generate an RSA key with " << GetParam() << " bit modulus size";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ uint8_t* x509_data = NULL;
+ size_t x509_data_length;
+ ASSERT_EQ(0,
+ sDevice->get_keypair_public(sDevice, key_blob, key_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve RSA public key successfully";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+ ASSERT_FALSE(x509_blob.get() == NULL)
+ << "X509 data should be allocated";
+
+ const unsigned char *tmp = static_cast<const unsigned char*>(x509_blob.get());
+ Unique_EVP_PKEY actual(d2i_PUBKEY((EVP_PKEY**) NULL, &tmp,
+ static_cast<long>(x509_blob.length())));
+
+ ASSERT_EQ(EVP_PKEY_RSA, EVP_PKEY_type(actual.get()->type))
+ << "Generated key type should be of type RSA";
+
+ Unique_RSA rsa(EVP_PKEY_get1_RSA(actual.get()));
+ ASSERT_FALSE(rsa.get() == NULL)
+ << "Should be able to extract RSA key from EVP_PKEY";
+
+ ASSERT_EQ(static_cast<unsigned long>(RSA_F4), BN_get_word(rsa.get()->e))
+ << "Exponent should be RSA_F4";
+
+ ASSERT_EQ((GetParam() + 7) / 8, static_cast<uint32_t>(RSA_size(rsa.get())))
+ << "Modulus size should be the specified parameter";
+}
+
+INSTANTIATE_TEST_CASE_P(RSA,
+ KeymasterGenerateRSATest,
+ ::testing::Values(512U, 1024U, 2048U, 3072U, 4096U));
+
+
+TEST_P(KeymasterGenerateECTest, GenerateKeyPair_EC_Success) {
+ keymaster_keypair_t key_type = TYPE_EC;
+ keymaster_ec_keygen_params_t params = {
+ .field_size = GetParam(),
+ };
+
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(0,
+ sDevice->generate_keypair(sDevice, key_type, ¶ms, &key_blob, &key_blob_length))
+ << "Should generate an EC key with " << GetParam() << " field size";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ uint8_t* x509_data = NULL;
+ size_t x509_data_length;
+ ASSERT_EQ(0,
+ sDevice->get_keypair_public(sDevice, key_blob, key_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve EC public key successfully";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+ ASSERT_FALSE(x509_blob.get() == NULL)
+ << "X509 data should be allocated";
+
+ const unsigned char *tmp = static_cast<const unsigned char*>(x509_blob.get());
+ Unique_EVP_PKEY actual(d2i_PUBKEY((EVP_PKEY**) NULL, &tmp,
+ static_cast<long>(x509_blob.length())));
+
+ ASSERT_EQ(EVP_PKEY_EC, EVP_PKEY_type(actual.get()->type))
+ << "Generated key type should be of type EC";
+
+ Unique_EC_KEY ecKey(EVP_PKEY_get1_EC_KEY(actual.get()));
+ ASSERT_FALSE(ecKey.get() == NULL)
+ << "Should be able to extract EC key from EVP_PKEY";
+
+ ASSERT_FALSE(EC_KEY_get0_group(ecKey.get()) == NULL)
+ << "EC key should have a EC_GROUP";
+
+ ASSERT_TRUE(EC_KEY_check_key(ecKey.get()))
+ << "EC key should check correctly";
+}
+
+INSTANTIATE_TEST_CASE_P(EC,
+ KeymasterGenerateECTest,
+ ::testing::Values(192U, 224U, 256U, 384U, 521U));
+
+
+TEST_P(KeymasterAllTypesTest, GenerateKeyPair_NullParams_Failure) {
+ keymaster_keypair_t key_type = GetParam();
+
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(-1,
+ sDevice->generate_keypair(sDevice, key_type, NULL, &key_blob, &key_blob_length))
+ << "Should not be able to generate a key with null params";
+}
+
+INSTANTIATE_TEST_CASE_P(Types,
+ KeymasterAllTypesTest,
+ ::testing::Values(TYPE_RSA, TYPE_DSA, TYPE_EC));
+
+TEST_F(KeymasterTest, GenerateKeyPair_UnknownType_Failure) {
+ keymaster_keypair_t key_type = static_cast<keymaster_keypair_t>(0xFFFF);
+
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(-1,
+ sDevice->generate_keypair(sDevice, key_type, NULL, &key_blob, &key_blob_length))
+ << "Should not generate an unknown key type";
+}
+
+TEST_F(KeymasterTest, ImportKeyPair_RSA_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ uint8_t* x509_data;
+ size_t x509_data_length;
+ ASSERT_EQ(0,
+ sDevice->get_keypair_public(sDevice, key_blob, key_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve RSA public key successfully";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+
+ const unsigned char *tmp = static_cast<const unsigned char*>(x509_blob.get());
+ Unique_EVP_PKEY actual(d2i_PUBKEY((EVP_PKEY**) NULL, &tmp,
+ static_cast<long>(x509_blob.length())));
+
+ ASSERT_EQ(EVP_PKEY_type(actual.get()->type), EVP_PKEY_RSA)
+ << "Generated key type should be of type RSA";
+
+ const unsigned char *expectedTmp = static_cast<const unsigned char*>(TEST_RSA_KEY_1);
+ Unique_PKCS8_PRIV_KEY_INFO expectedPkcs8(
+ d2i_PKCS8_PRIV_KEY_INFO((PKCS8_PRIV_KEY_INFO**) NULL, &expectedTmp,
+ sizeof(TEST_RSA_KEY_1)));
+
+ Unique_EVP_PKEY expected(EVP_PKCS82PKEY(expectedPkcs8.get()));
+
+ ASSERT_EQ(1, EVP_PKEY_cmp(expected.get(), actual.get()))
+ << "Expected and actual keys should match";
+}
+
+TEST_F(KeymasterTest, ImportKeyPair_EC_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, TEST_EC_KEY_1, sizeof(TEST_EC_KEY_1),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an EC key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ uint8_t* x509_data;
+ size_t x509_data_length;
+ ASSERT_EQ(0,
+ sDevice->get_keypair_public(sDevice, key_blob, key_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve EC public key successfully";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+
+ const unsigned char *tmp = static_cast<const unsigned char*>(x509_blob.get());
+ Unique_EVP_PKEY actual(d2i_PUBKEY((EVP_PKEY**) NULL, &tmp,
+ static_cast<long>(x509_blob.length())));
+
+ ASSERT_EQ(EVP_PKEY_type(actual.get()->type), EVP_PKEY_EC)
+ << "Generated key type should be of type EC";
+
+ const unsigned char *expectedTmp = static_cast<const unsigned char*>(TEST_EC_KEY_1);
+ Unique_PKCS8_PRIV_KEY_INFO expectedPkcs8(
+ d2i_PKCS8_PRIV_KEY_INFO((PKCS8_PRIV_KEY_INFO**) NULL, &expectedTmp,
+ sizeof(TEST_EC_KEY_1)));
+
+ Unique_EVP_PKEY expected(EVP_PKCS82PKEY(expectedPkcs8.get()));
+
+ ASSERT_EQ(1, EVP_PKEY_cmp(expected.get(), actual.get()))
+ << "Expected and actual keys should match";
+}
+
+TEST_F(KeymasterTest, ImportKeyPair_BogusKey_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(-1,
+ sDevice->import_keypair(sDevice, BOGUS_KEY_1, sizeof(BOGUS_KEY_1),
+ &key_blob, &key_blob_length))
+ << "Should not import an unknown key type";
+}
+
+TEST_F(KeymasterTest, ImportKeyPair_NullKey_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(-1,
+ sDevice->import_keypair(sDevice, NULL, 0,
+ &key_blob, &key_blob_length))
+ << "Should not import a null key";
+}
+
+TEST_F(KeymasterTest, GetKeypairPublic_RSA_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ uint8_t* x509_data;
+ size_t x509_data_length;
+ ASSERT_EQ(0,
+ sDevice->get_keypair_public(sDevice, key_blob, key_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve RSA public key successfully";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+}
+
+TEST_F(KeymasterTest, GetKeypairPublic_EC_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_EC_KEY_1, sizeof(TEST_EC_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an EC key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ uint8_t* x509_data;
+ size_t x509_data_length;
+ ASSERT_EQ(0,
+ sDevice->get_keypair_public(sDevice, key_blob, key_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve EC public key successfully";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+}
+
+TEST_F(KeymasterTest, GetKeypairPublic_NullKey_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ uint8_t* x509_data = NULL;
+ size_t x509_data_length;
+ ASSERT_EQ(-1,
+ sDevice->get_keypair_public(sDevice, NULL, 0,
+ &x509_data, &x509_data_length))
+ << "Should not be able to retrieve public key from null key";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+}
+
+TEST_F(KeymasterTest, GetKeypairPublic_RSA_NullDestination_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ ASSERT_EQ(-1,
+ sDevice->get_keypair_public(sDevice, key.get(), key.length(),
+ NULL, NULL))
+ << "Should not be able to succeed with NULL destination blob";
+}
+
+TEST_F(KeymasterTest, GetKeypairPublic_EC_NullDestination_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_EC_KEY_1, sizeof(TEST_EC_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ ASSERT_EQ(-1,
+ sDevice->get_keypair_public(sDevice, key.get(), key.length(),
+ NULL, NULL))
+ << "Should not be able to succeed with NULL destination blob";
+}
+
+TEST_F(KeymasterTest, DeleteKeyPair_RSA_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+}
+
+TEST_F(KeymasterTest, DeleteKeyPair_RSA_DoubleDelete_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ /*
+ * This is only run if the module indicates it implements key deletion
+ * by implementing delete_keypair.
+ */
+ if (sDevice->delete_keypair != NULL) {
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueBlob blob(key_blob, key_blob_length);
+
+ ASSERT_EQ(0, sDevice->delete_keypair(sDevice, key_blob, key_blob_length))
+ << "Should delete key after import";
+
+ ASSERT_EQ(-1, sDevice->delete_keypair(sDevice, key_blob, key_blob_length))
+ << "Should not be able to delete key twice";
+ }
+}
+
+TEST_F(KeymasterTest, DeleteKeyPair_RSA_NullKey_Failure) {
+ /*
+ * This is only run if the module indicates it implements key deletion
+ * by implementing delete_keypair.
+ */
+ if (sDevice->delete_keypair != NULL) {
+ ASSERT_EQ(-1, sDevice->delete_keypair(sDevice, NULL, 0))
+ << "Should not be able to delete null key";
+ }
+}
+
+/*
+ * DER-encoded PKCS#8 format RSA key. Generated using:
+ *
+ * openssl genrsa 512 | openssl pkcs8 -topk8 -nocrypt -outform der | recode ../x1
+ */
+static uint8_t TEST_SIGN_RSA_KEY_1[] = {
+ 0x30, 0x82, 0x01, 0x56, 0x02, 0x01, 0x00, 0x30, 0x0D, 0x06, 0x09, 0x2A,
+ 0x86, 0x48, 0x86, 0xF7, 0x0D, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
+ 0x01, 0x40, 0x30, 0x82, 0x01, 0x3C, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00,
+ 0xBD, 0xC0, 0x7F, 0xEF, 0x75, 0x1D, 0x63, 0x2A, 0xD0, 0x9A, 0x26, 0xE5,
+ 0x5B, 0xB9, 0x84, 0x7C, 0xE5, 0xC7, 0xE7, 0xDE, 0xFE, 0xB6, 0x54, 0xD9,
+ 0xF0, 0x9B, 0xC2, 0xCF, 0x36, 0xDA, 0xE5, 0x4D, 0xC5, 0xD9, 0x25, 0x78,
+ 0xBD, 0x55, 0x05, 0xBD, 0x86, 0xFB, 0x37, 0x15, 0x33, 0x42, 0x52, 0xED,
+ 0xE5, 0xCD, 0xCB, 0xB7, 0xA2, 0x51, 0xFA, 0x36, 0xE9, 0x9C, 0x2E, 0x5D,
+ 0xE3, 0xA5, 0x1F, 0x01, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x41, 0x00,
+ 0x96, 0x71, 0xDE, 0xBD, 0x83, 0x94, 0x96, 0x40, 0xA6, 0xFD, 0xE1, 0xA2,
+ 0xED, 0xD3, 0xAC, 0x28, 0xBE, 0xA2, 0x7D, 0xC3, 0xFF, 0x1D, 0x9F, 0x2E,
+ 0xE0, 0xA7, 0x0E, 0x90, 0xEE, 0x44, 0x25, 0x92, 0xE3, 0x54, 0xDD, 0x55,
+ 0xA3, 0xEF, 0x42, 0xF5, 0x52, 0x55, 0x41, 0x47, 0x5E, 0x00, 0xFB, 0x8B,
+ 0x47, 0x5E, 0x45, 0x49, 0xEA, 0x3D, 0x2C, 0xFD, 0x9F, 0xEC, 0xC8, 0x4E,
+ 0x4E, 0x86, 0x90, 0x31, 0x02, 0x21, 0x00, 0xE6, 0xA5, 0x55, 0xB3, 0x64,
+ 0xAB, 0x90, 0x5E, 0xA2, 0xF5, 0x6B, 0x21, 0x4B, 0x15, 0xD6, 0x4A, 0xB6,
+ 0x60, 0x24, 0x95, 0x65, 0xA2, 0xBE, 0xBA, 0x2A, 0x73, 0xFB, 0xFF, 0x2C,
+ 0x61, 0x88, 0x9D, 0x02, 0x21, 0x00, 0xD2, 0x9C, 0x5B, 0xFE, 0x82, 0xA5,
+ 0xFC, 0x52, 0x6A, 0x29, 0x38, 0xDB, 0x22, 0x3B, 0xEB, 0x74, 0x3B, 0xCA,
+ 0xB4, 0xDD, 0x1D, 0xE4, 0x48, 0x60, 0x70, 0x19, 0x9B, 0x81, 0xC1, 0x83,
+ 0x28, 0xB5, 0x02, 0x21, 0x00, 0x89, 0x2D, 0xFE, 0xF9, 0xF2, 0xBF, 0x43,
+ 0xDF, 0xB5, 0xA6, 0xA8, 0x30, 0x26, 0x1B, 0x77, 0xD7, 0xF9, 0xFE, 0xD6,
+ 0xE3, 0x70, 0x8E, 0xCA, 0x47, 0xA9, 0xA6, 0x50, 0x54, 0x25, 0xCE, 0x60,
+ 0xD5, 0x02, 0x21, 0x00, 0xBE, 0x5A, 0xF8, 0x82, 0xE6, 0xCE, 0xE3, 0x6A,
+ 0x11, 0xED, 0xC4, 0x27, 0xBB, 0x9F, 0x70, 0xC6, 0x93, 0xAC, 0x39, 0x20,
+ 0x89, 0x7D, 0xE5, 0x34, 0xD4, 0xDD, 0x30, 0x42, 0x6D, 0x07, 0x00, 0xE9,
+ 0x02, 0x20, 0x05, 0x91, 0xEF, 0x12, 0xD2, 0xD3, 0x6A, 0xD2, 0x96, 0x6B,
+ 0x10, 0x62, 0xF9, 0xBA, 0xA4, 0x91, 0x48, 0x84, 0x40, 0x61, 0x67, 0x80,
+ 0x68, 0x68, 0xC8, 0x60, 0xB3, 0x66, 0xC8, 0xF9, 0x08, 0x9A,
+};
+
+/*
+ * DER-encoded PKCS#8 format EC key. Generated using:
+ *
+ * openssl ecparam -name prime256v1 -genkey -noout | openssl pkcs8 -topk8 -nocrypt -outform der | recode ../x1
+ */
+static uint8_t TEST_SIGN_EC_KEY_1[] = {
+ 0x30, 0x81, 0x87, 0x02, 0x01, 0x00, 0x30, 0x13, 0x06, 0x07, 0x2A, 0x86,
+ 0x48, 0xCE, 0x3D, 0x02, 0x01, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D,
+ 0x03, 0x01, 0x07, 0x04, 0x6D, 0x30, 0x6B, 0x02, 0x01, 0x01, 0x04, 0x20,
+ 0x9E, 0x66, 0x11, 0x6A, 0x89, 0xF5, 0x78, 0x57, 0xF3, 0x35, 0xA2, 0x46,
+ 0x09, 0x06, 0x4B, 0x4D, 0x81, 0xEC, 0xD3, 0x9B, 0x0A, 0xC4, 0x68, 0x06,
+ 0xB8, 0x42, 0x24, 0x5E, 0x74, 0x2C, 0x62, 0x79, 0xA1, 0x44, 0x03, 0x42,
+ 0x00, 0x04, 0x35, 0xB5, 0x9A, 0x5C, 0xE5, 0x52, 0x35, 0xF2, 0x10, 0x6C,
+ 0xD9, 0x98, 0x67, 0xED, 0x5E, 0xCB, 0x6B, 0xB8, 0x96, 0x5E, 0x54, 0x7C,
+ 0x34, 0x2A, 0xA3, 0x3B, 0xF3, 0xD1, 0x39, 0x48, 0x36, 0x7A, 0xEA, 0xD8,
+ 0xCA, 0xDD, 0x40, 0x8F, 0xE9, 0xE0, 0x95, 0x2E, 0x3F, 0x95, 0x0F, 0x14,
+ 0xD6, 0x14, 0x78, 0xB5, 0xAD, 0x17, 0xD2, 0x5A, 0x41, 0x96, 0x99, 0x20,
+ 0xC7, 0x5B, 0x0F, 0x60, 0xFD, 0xBA
+};
+
+/*
+ * PKCS#1 v1.5 padded raw "Hello, world" Can be generated be generated by verifying
+ * the signature below in no padding mode:
+ *
+ * openssl rsautl -keyform der -inkey rsa.der -raw -verify -in test.sig
+ */
+static uint8_t TEST_SIGN_DATA_1[] = {
+ 0x00, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xFF, 0xFF, 0xFF, 0x00, 0x48, 0x65, 0x6C, 0x6C, 0x6F, 0x2C, 0x20, 0x77,
+ 0x6F, 0x72, 0x6C, 0x64,
+};
+
+/*
+ * Signature of TEST_SIGN_DATA_1 using TEST_SIGN_RSA_KEY_1. Generated using:
+ *
+ * echo 'Hello, world' | openssl rsautl -keyform der -inkey rsa.der -sign | recode ../x1
+ */
+static uint8_t TEST_SIGN_RSA_SIGNATURE_1[] = {
+ 0xA4, 0xBB, 0x76, 0x87, 0xFE, 0x61, 0x0C, 0x9D, 0xD6, 0xFF, 0x4B, 0x76,
+ 0x96, 0x08, 0x36, 0x23, 0x11, 0xC6, 0x44, 0x3F, 0x88, 0x77, 0x97, 0xB2,
+ 0xA8, 0x3B, 0xFB, 0x9C, 0x3C, 0xD3, 0x20, 0x65, 0xFD, 0x26, 0x3B, 0x2A,
+ 0xB8, 0xB6, 0xD4, 0xDC, 0x91, 0xF7, 0xE2, 0xDE, 0x4D, 0xF7, 0x0E, 0xB9,
+ 0x72, 0xA7, 0x29, 0x72, 0x82, 0x12, 0x7C, 0x53, 0x23, 0x21, 0xC4, 0xFF,
+ 0x79, 0xE4, 0x91, 0x40,
+};
+
+/*
+ * Identical to TEST_SIGN_RSA_SIGNATURE_1 except the last octet is '1' instead of '0'
+ * This should fail any test.
+ */
+static uint8_t TEST_SIGN_SIGNATURE_BOGUS_1[] = {
+ 0xA4, 0xBB, 0x76, 0x87, 0xFE, 0x61, 0x0C, 0x9D, 0xD6, 0xFF, 0x4B, 0x76,
+ 0x96, 0x08, 0x36, 0x23, 0x11, 0xC6, 0x44, 0x3F, 0x88, 0x77, 0x97, 0xB2,
+ 0xA8, 0x3B, 0xFB, 0x9C, 0x3C, 0xD3, 0x20, 0x65, 0xFD, 0x26, 0x3B, 0x2A,
+ 0xB8, 0xB6, 0xD4, 0xDC, 0x91, 0xF7, 0xE2, 0xDE, 0x4D, 0xF7, 0x0E, 0xB9,
+ 0x72, 0xA7, 0x29, 0x72, 0x82, 0x12, 0x7C, 0x53, 0x23, 0x21, 0xC4, 0xFF,
+ 0x79, 0xE4, 0x91, 0x41,
+};
+
+TEST_F(KeymasterTest, SignData_RSA_Raw_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ uint8_t* sig;
+ size_t sig_length;
+
+ UniqueReadOnlyBlob testData(TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->sign_data(sDevice, ¶ms, key_blob, key_blob_length,
+ testData.get(), testData.length(),
+ &sig, &sig_length))
+ << "Should sign data successfully";
+ UniqueBlob sig_blob(sig, sig_length);
+
+ UniqueBlob expected_sig(TEST_SIGN_RSA_SIGNATURE_1, sizeof(TEST_SIGN_RSA_SIGNATURE_1));
+
+ ASSERT_EQ(expected_sig, sig_blob)
+ << "Generated signature should match expected signature";
+
+ // The expected signature is actually stack data, so don't let it try to free.
+ uint8_t* unused __attribute__((unused)) = expected_sig.release();
+}
+
+TEST_F(KeymasterTest, SignData_EC_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_EC_KEY_1, sizeof(TEST_SIGN_EC_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an EC key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_ec_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ };
+
+ uint8_t* sig;
+ size_t sig_length;
+
+ UniqueReadOnlyBlob testData(TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->sign_data(sDevice, ¶ms, key_blob, key_blob_length,
+ testData.get(), testData.length(),
+ &sig, &sig_length))
+ << "Should sign data successfully";
+ UniqueBlob sig_blob(sig, sig_length);
+
+ uint8_t* x509_data;
+ size_t x509_data_length;
+ ASSERT_EQ(0,
+ sDevice->get_keypair_public(sDevice, key_blob, key_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve RSA public key successfully";
+ UniqueBlob x509_blob(x509_data, x509_data_length);
+
+ const unsigned char *tmp = static_cast<const unsigned char*>(x509_blob.get());
+ Unique_EVP_PKEY expected(d2i_PUBKEY((EVP_PKEY**) NULL, &tmp,
+ static_cast<long>(x509_blob.length())));
+
+ Unique_EC_KEY ecKey(EVP_PKEY_get1_EC_KEY(expected.get()));
+
+ ASSERT_EQ(1, ECDSA_verify(0, testData.get(), testData.length(), sig_blob.get(), sig_blob.length(), ecKey.get()))
+ << "Signature should verify";
+}
+
+TEST_F(KeymasterTest, SignData_RSA_Raw_InvalidSizeInput_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ uint8_t* sig;
+ size_t sig_length;
+
+ UniqueReadOnlyBlob testData(TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ ASSERT_EQ(-1,
+ sDevice->sign_data(sDevice, ¶ms, key_blob, key_blob_length,
+ testData.get(), testData.length(),
+ &sig, &sig_length))
+ << "Should not be able to do raw signature on incorrect size data";
+}
+
+TEST_F(KeymasterTest, SignData_RSA_Raw_NullKey_Failure) {
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ uint8_t* sig;
+ size_t sig_length;
+
+ UniqueReadOnlyBlob testData(TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ ASSERT_EQ(-1,
+ sDevice->sign_data(sDevice, ¶ms, NULL, 0,
+ testData.get(), testData.length(),
+ &sig, &sig_length))
+ << "Should not be able to do raw signature on incorrect size data";
+}
+
+TEST_F(KeymasterTest, SignData_RSA_Raw_NullInput_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ uint8_t* sig;
+ size_t sig_length;
+
+ ASSERT_EQ(-1,
+ sDevice->sign_data(sDevice, ¶ms, key_blob, key_blob_length,
+ NULL, 0,
+ &sig, &sig_length))
+ << "Should error when input data is null";
+}
+
+TEST_F(KeymasterTest, SignData_RSA_Raw_NullOutput_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ uint8_t* sig;
+ size_t sig_length;
+
+ UniqueReadOnlyBlob testData(TEST_RSA_KEY_1, sizeof(TEST_RSA_KEY_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ ASSERT_EQ(-1,
+ sDevice->sign_data(sDevice, ¶ms, key_blob, key_blob_length,
+ testData.get(), testData.length(),
+ NULL, NULL))
+ << "Should error when output is null";
+}
+
+TEST_F(KeymasterTest, VerifyData_RSA_Raw_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ UniqueReadOnlyBlob testData(TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ UniqueReadOnlyBlob testSig(TEST_SIGN_RSA_SIGNATURE_1, sizeof(TEST_SIGN_RSA_SIGNATURE_1));
+ ASSERT_TRUE(testSig.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->verify_data(sDevice, ¶ms, key_blob, key_blob_length,
+ testData.get(), testData.length(),
+ testSig.get(), testSig.length()))
+ << "Should verify data successfully";
+}
+
+TEST_F(KeymasterTest, VerifyData_EC_Raw_Success) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_EC_KEY_1, sizeof(TEST_SIGN_EC_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_ec_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ };
+
+ uint8_t* sig;
+ size_t sig_length;
+
+ UniqueReadOnlyBlob testData(TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->sign_data(sDevice, ¶ms, key_blob, key_blob_length,
+ testData.get(), testData.length(),
+ &sig, &sig_length))
+ << "Should sign data successfully";
+ UniqueBlob sig_blob(sig, sig_length);
+
+ ASSERT_EQ(0,
+ sDevice->verify_data(sDevice, ¶ms, key_blob, key_blob_length,
+ testData.get(), testData.length(),
+ sig_blob.get(), sig_blob.length()))
+ << "Should verify data successfully";
+}
+
+TEST_F(KeymasterTest, VerifyData_RSA_Raw_BadSignature_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ ASSERT_EQ(-1,
+ sDevice->verify_data(sDevice, ¶ms, key_blob, key_blob_length,
+ TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1),
+ TEST_SIGN_SIGNATURE_BOGUS_1, sizeof(TEST_SIGN_SIGNATURE_BOGUS_1)))
+ << "Should sign data successfully";
+}
+
+TEST_F(KeymasterTest, VerifyData_EC_Raw_BadSignature_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_EC_KEY_1, sizeof(TEST_SIGN_EC_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_ec_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ };
+
+ ASSERT_EQ(-1,
+ sDevice->verify_data(sDevice, ¶ms, key_blob, key_blob_length,
+ TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1),
+ TEST_SIGN_SIGNATURE_BOGUS_1, sizeof(TEST_SIGN_SIGNATURE_BOGUS_1)))
+ << "Should sign data successfully";
+}
+
+TEST_F(KeymasterTest, VerifyData_RSA_Raw_NullKey_Failure) {
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ UniqueReadOnlyBlob testData(TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ UniqueReadOnlyBlob testSig(TEST_SIGN_SIGNATURE_BOGUS_1, sizeof(TEST_SIGN_SIGNATURE_BOGUS_1));
+ ASSERT_TRUE(testSig.get() != NULL);
+
+ ASSERT_EQ(-1,
+ sDevice->verify_data(sDevice, ¶ms, NULL, 0,
+ testData.get(), testData.length(),
+ testSig.get(), testSig.length()))
+ << "Should fail when key is null";
+}
+
+TEST_F(KeymasterTest, VerifyData_RSA_NullInput_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ UniqueReadOnlyBlob testSig(TEST_SIGN_RSA_SIGNATURE_1, sizeof(TEST_SIGN_RSA_SIGNATURE_1));
+ ASSERT_TRUE(testSig.get() != NULL);
+
+ ASSERT_EQ(-1,
+ sDevice->verify_data(sDevice, ¶ms, key_blob, key_blob_length,
+ NULL, 0,
+ testSig.get(), testSig.length()))
+ << "Should fail on null input";
+}
+
+TEST_F(KeymasterTest, VerifyData_RSA_NullSignature_Failure) {
+ uint8_t* key_blob;
+ size_t key_blob_length;
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key_blob, &key_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key(&sDevice, key_blob, key_blob_length);
+
+ keymaster_rsa_sign_params_t params = {
+ .digest_type = DIGEST_NONE,
+ .padding_type = PADDING_NONE,
+ };
+
+ UniqueReadOnlyBlob testData(TEST_SIGN_DATA_1, sizeof(TEST_SIGN_DATA_1));
+ ASSERT_TRUE(testData.get() != NULL);
+
+ ASSERT_EQ(-1,
+ sDevice->verify_data(sDevice, ¶ms, key.get(), key.length(),
+ testData.get(), testData.length(),
+ NULL, 0))
+ << "Should fail on null signature";
+}
+
+TEST_F(KeymasterTest, EraseAll_Success) {
+ uint8_t *key1_blob, *key2_blob;
+ size_t key1_blob_length, key2_blob_length;
+
+ // Only test this if the device says it supports delete_all
+ if (sDevice->delete_all == NULL) {
+ return;
+ }
+
+ UniqueReadOnlyBlob testKey(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey.get(), testKey.length(),
+ &key1_blob, &key1_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key1(&sDevice, key1_blob, key1_blob_length);
+
+ UniqueReadOnlyBlob testKey2(TEST_SIGN_RSA_KEY_1, sizeof(TEST_SIGN_RSA_KEY_1));
+ ASSERT_TRUE(testKey2.get() != NULL);
+
+ ASSERT_EQ(0,
+ sDevice->import_keypair(sDevice, testKey2.get(), testKey2.length(),
+ &key2_blob, &key2_blob_length))
+ << "Should successfully import an RSA key";
+ UniqueKey key2(&sDevice, key2_blob, key2_blob_length);
+
+ ASSERT_EQ(0, sDevice->delete_all(sDevice))
+ << "Should erase all keys";
+
+ key1.reset();
+
+ uint8_t* x509_data;
+ size_t x509_data_length;
+ ASSERT_EQ(-1,
+ sDevice->get_keypair_public(sDevice, key1_blob, key1_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve RSA public key 1 successfully";
+
+ ASSERT_EQ(-1,
+ sDevice->get_keypair_public(sDevice, key2_blob, key2_blob_length,
+ &x509_data, &x509_data_length))
+ << "Should be able to retrieve RSA public key 2 successfully";
+}
+
+}
diff --git a/libhardware/tests/nusensors/Android.bp b/libhardware/tests/nusensors/Android.bp
new file mode 100644
index 0000000..e923468
--- /dev/null
+++ b/libhardware/tests/nusensors/Android.bp
@@ -0,0 +1,10 @@
+cc_binary {
+ name: "test-nusensors",
+
+ srcs: ["nusensors.cpp"],
+
+ shared_libs: [
+ "libcutils",
+ "libhardware",
+ ],
+}
diff --git a/libhardware/tests/nusensors/nusensors.cpp b/libhardware/tests/nusensors/nusensors.cpp
new file mode 100644
index 0000000..55b7785
--- /dev/null
+++ b/libhardware/tests/nusensors/nusensors.cpp
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <inttypes.h>
+#include <string.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+#include <cutils/log.h>
+
+#include <hardware/sensors.h>
+#include <utils/Timers.h>
+
+char const* getSensorName(int type) {
+ switch(type) {
+ case SENSOR_TYPE_ACCELEROMETER:
+ return "Acc";
+ case SENSOR_TYPE_MAGNETIC_FIELD:
+ return "Mag";
+ case SENSOR_TYPE_ORIENTATION:
+ return "Ori";
+ case SENSOR_TYPE_GYROSCOPE:
+ return "Gyr";
+ case SENSOR_TYPE_LIGHT:
+ return "Lux";
+ case SENSOR_TYPE_PRESSURE:
+ return "Bar";
+ case SENSOR_TYPE_TEMPERATURE:
+ return "Tmp";
+ case SENSOR_TYPE_PROXIMITY:
+ return "Prx";
+ case SENSOR_TYPE_GRAVITY:
+ return "Grv";
+ case SENSOR_TYPE_LINEAR_ACCELERATION:
+ return "Lac";
+ case SENSOR_TYPE_ROTATION_VECTOR:
+ return "Rot";
+ case SENSOR_TYPE_RELATIVE_HUMIDITY:
+ return "Hum";
+ case SENSOR_TYPE_AMBIENT_TEMPERATURE:
+ return "Tam";
+ }
+ return "ukn";
+}
+
+int main(int /* argc */, char** /* argv */)
+{
+ int err;
+ struct sensors_poll_device_t* device;
+ struct sensors_module_t* module;
+
+ err = hw_get_module(SENSORS_HARDWARE_MODULE_ID, (hw_module_t const**)&module);
+ if (err != 0) {
+ printf("hw_get_module() failed (%s)\n", strerror(-err));
+ return 0;
+ }
+
+ err = sensors_open(&module->common, &device);
+ if (err != 0) {
+ printf("sensors_open() failed (%s)\n", strerror(-err));
+ return 0;
+ }
+
+ struct sensor_t const* list;
+ int count = module->get_sensors_list(module, &list);
+ printf("%d sensors found:\n", count);
+ for (int i=0 ; i<count ; i++) {
+ printf("%s\n"
+ "\tvendor: %s\n"
+ "\tversion: %d\n"
+ "\thandle: %d\n"
+ "\ttype: %d\n"
+ "\tmaxRange: %f\n"
+ "\tresolution: %f\n"
+ "\tpower: %f mA\n",
+ list[i].name,
+ list[i].vendor,
+ list[i].version,
+ list[i].handle,
+ list[i].type,
+ list[i].maxRange,
+ list[i].resolution,
+ list[i].power);
+ }
+
+ static const size_t numEvents = 16;
+ sensors_event_t buffer[numEvents];
+
+ for (int i=0 ; i<count ; i++) {
+ err = device->activate(device, list[i].handle, 0);
+ if (err != 0) {
+ printf("deactivate() for '%s'failed (%s)\n",
+ list[i].name, strerror(-err));
+ return 0;
+ }
+ }
+
+ for (int i=0 ; i<count ; i++) {
+ err = device->activate(device, list[i].handle, 1);
+ if (err != 0) {
+ printf("activate() for '%s'failed (%s)\n",
+ list[i].name, strerror(-err));
+ return 0;
+ }
+ device->setDelay(device, list[i].handle, ms2ns(10));
+ }
+
+ do {
+ int n = device->poll(device, buffer, numEvents);
+ if (n < 0) {
+ printf("poll() failed (%s)\n", strerror(-err));
+ break;
+ }
+
+ printf("read %d events:\n", n);
+ for (int i=0 ; i<n ; i++) {
+ const sensors_event_t& data = buffer[i];
+
+ if (data.version != sizeof(sensors_event_t)) {
+ printf("incorrect event version (version=%d, expected=%zu",
+ data.version, sizeof(sensors_event_t));
+ break;
+ }
+
+ switch(data.type) {
+ case SENSOR_TYPE_ACCELEROMETER:
+ case SENSOR_TYPE_MAGNETIC_FIELD:
+ case SENSOR_TYPE_ORIENTATION:
+ case SENSOR_TYPE_GYROSCOPE:
+ case SENSOR_TYPE_GRAVITY:
+ case SENSOR_TYPE_LINEAR_ACCELERATION:
+ case SENSOR_TYPE_ROTATION_VECTOR:
+ printf("sensor=%s, time=%" PRId64 ", value=<%5.1f,%5.1f,%5.1f>\n",
+ getSensorName(data.type),
+ data.timestamp,
+ data.data[0],
+ data.data[1],
+ data.data[2]);
+ break;
+
+ case SENSOR_TYPE_LIGHT:
+ case SENSOR_TYPE_PRESSURE:
+ case SENSOR_TYPE_TEMPERATURE:
+ case SENSOR_TYPE_PROXIMITY:
+ case SENSOR_TYPE_RELATIVE_HUMIDITY:
+ case SENSOR_TYPE_AMBIENT_TEMPERATURE:
+ printf("sensor=%s, time=%" PRId64 ", value=%f\n",
+ getSensorName(data.type),
+ data.timestamp,
+ data.data[0]);
+ break;
+
+ default:
+ printf("sensor=%d, time=% " PRId64 ", value=<%f,%f,%f, ...>\n",
+ data.type,
+ data.timestamp,
+ data.data[0],
+ data.data[1],
+ data.data[2]);
+ break;
+ }
+ }
+ } while (1); // fix that
+
+
+ for (int i=0 ; i<count ; i++) {
+ err = device->activate(device, list[i].handle, 0);
+ if (err != 0) {
+ printf("deactivate() for '%s'failed (%s)\n",
+ list[i].name, strerror(-err));
+ return 0;
+ }
+ }
+
+ err = sensors_close(device);
+ if (err != 0) {
+ printf("sensors_close() failed (%s)\n", strerror(-err));
+ }
+ return 0;
+}
