| /* |
| * |
| * BlueZ - Bluetooth protocol stack for Linux |
| * |
| * Copyright (C) 2006-2007 Nokia Corporation |
| * Copyright (C) 2004-2009 Marcel Holtmann <marcel@holtmann.org> |
| * |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif |
| |
| #include <errno.h> |
| |
| #include <glib.h> |
| #include <gdbus/gdbus.h> |
| |
| #include "lib/uuid.h" |
| #include "src/adapter.h" |
| #include "src/device.h" |
| #include "src/dbus-common.h" |
| |
| #include "src/log.h" |
| #include "src/error.h" |
| |
| #include "avdtp.h" |
| #include "media.h" |
| #include "transport.h" |
| #include "a2dp.h" |
| #include "sink.h" |
| #include "source.h" |
| #include "avrcp.h" |
| |
| #define MEDIA_TRANSPORT_INTERFACE "org.bluez.MediaTransport1" |
| |
| typedef enum { |
| TRANSPORT_STATE_IDLE, /* Not acquired and suspended */ |
| TRANSPORT_STATE_PENDING, /* Playing but not acquired */ |
| TRANSPORT_STATE_REQUESTING, /* Acquire in progress */ |
| TRANSPORT_STATE_ACTIVE, /* Acquired and playing */ |
| TRANSPORT_STATE_SUSPENDING, /* Release in progress */ |
| } transport_state_t; |
| |
| static char *str_state[] = { |
| "TRANSPORT_STATE_IDLE", |
| "TRANSPORT_STATE_PENDING", |
| "TRANSPORT_STATE_REQUESTING", |
| "TRANSPORT_STATE_ACTIVE", |
| "TRANSPORT_STATE_SUSPENDING", |
| }; |
| |
| struct media_request { |
| DBusMessage *msg; |
| guint id; |
| }; |
| |
| struct media_owner { |
| struct media_transport *transport; |
| struct media_request *pending; |
| char *name; |
| guint watch; |
| }; |
| |
| struct a2dp_transport { |
| struct avdtp *session; |
| uint16_t delay; |
| uint16_t volume; |
| }; |
| |
| struct media_transport { |
| char *path; /* Transport object path */ |
| struct btd_device *device; /* Transport device */ |
| struct media_endpoint *endpoint; /* Transport endpoint */ |
| struct media_owner *owner; /* Transport owner */ |
| uint8_t *configuration; /* Transport configuration */ |
| int size; /* Transport configuration size */ |
| int fd; /* Transport file descriptor */ |
| uint16_t imtu; /* Transport input mtu */ |
| uint16_t omtu; /* Transport output mtu */ |
| transport_state_t state; |
| guint hs_watch; |
| guint source_watch; |
| guint sink_watch; |
| guint (*resume) (struct media_transport *transport, |
| struct media_owner *owner); |
| guint (*suspend) (struct media_transport *transport, |
| struct media_owner *owner); |
| void (*cancel) (struct media_transport *transport, |
| guint id); |
| GDestroyNotify destroy; |
| void *data; |
| }; |
| |
| static GSList *transports = NULL; |
| |
| static const char *state2str(transport_state_t state) |
| { |
| switch (state) { |
| case TRANSPORT_STATE_IDLE: |
| case TRANSPORT_STATE_REQUESTING: |
| return "idle"; |
| case TRANSPORT_STATE_PENDING: |
| return "pending"; |
| case TRANSPORT_STATE_ACTIVE: |
| case TRANSPORT_STATE_SUSPENDING: |
| return "active"; |
| } |
| |
| return NULL; |
| } |
| |
| static gboolean state_in_use(transport_state_t state) |
| { |
| switch (state) { |
| case TRANSPORT_STATE_IDLE: |
| case TRANSPORT_STATE_PENDING: |
| return FALSE; |
| case TRANSPORT_STATE_REQUESTING: |
| case TRANSPORT_STATE_ACTIVE: |
| case TRANSPORT_STATE_SUSPENDING: |
| return TRUE; |
| } |
| |
| return FALSE; |
| } |
| |
| static void transport_set_state(struct media_transport *transport, |
| transport_state_t state) |
| { |
| transport_state_t old_state = transport->state; |
| const char *str; |
| |
| if (old_state == state) |
| return; |
| |
| transport->state = state; |
| |
| DBG("State changed %s: %s -> %s", transport->path, str_state[old_state], |
| str_state[state]); |
| |
| str = state2str(state); |
| |
| if (g_strcmp0(str, state2str(old_state)) != 0) |
| g_dbus_emit_property_changed(btd_get_dbus_connection(), |
| transport->path, |
| MEDIA_TRANSPORT_INTERFACE, |
| "State"); |
| } |
| |
| void media_transport_destroy(struct media_transport *transport) |
| { |
| char *path; |
| |
| if (transport->sink_watch) |
| sink_remove_state_cb(transport->sink_watch); |
| |
| if (transport->source_watch) |
| source_remove_state_cb(transport->source_watch); |
| |
| path = g_strdup(transport->path); |
| g_dbus_unregister_interface(btd_get_dbus_connection(), path, |
| MEDIA_TRANSPORT_INTERFACE); |
| |
| g_free(path); |
| } |
| |
| static struct media_request *media_request_create(DBusMessage *msg, guint id) |
| { |
| struct media_request *req; |
| |
| req = g_new0(struct media_request, 1); |
| req->msg = dbus_message_ref(msg); |
| req->id = id; |
| |
| DBG("Request created: method=%s id=%u", dbus_message_get_member(msg), |
| id); |
| |
| return req; |
| } |
| |
| static void media_request_reply(struct media_request *req, int err) |
| { |
| DBusMessage *reply; |
| |
| DBG("Request %s Reply %s", dbus_message_get_member(req->msg), |
| strerror(err)); |
| |
| if (!err) |
| reply = g_dbus_create_reply(req->msg, DBUS_TYPE_INVALID); |
| else |
| reply = g_dbus_create_error(req->msg, |
| ERROR_INTERFACE ".Failed", |
| "%s", strerror(err)); |
| |
| g_dbus_send_message(btd_get_dbus_connection(), reply); |
| } |
| |
| static void media_owner_remove(struct media_owner *owner) |
| { |
| struct media_transport *transport = owner->transport; |
| struct media_request *req = owner->pending; |
| |
| if (!req) |
| return; |
| |
| DBG("Owner %s Request %s", owner->name, |
| dbus_message_get_member(req->msg)); |
| |
| if (req->id) |
| transport->cancel(transport, req->id); |
| |
| owner->pending = NULL; |
| if (req->msg) |
| dbus_message_unref(req->msg); |
| |
| g_free(req); |
| } |
| |
| static void media_owner_free(struct media_owner *owner) |
| { |
| DBG("Owner %s", owner->name); |
| |
| media_owner_remove(owner); |
| |
| g_free(owner->name); |
| g_free(owner); |
| } |
| |
| static void media_transport_remove_owner(struct media_transport *transport) |
| { |
| struct media_owner *owner = transport->owner; |
| |
| DBG("Transport %s Owner %s", transport->path, owner->name); |
| |
| /* Reply if owner has a pending request */ |
| if (owner->pending) |
| media_request_reply(owner->pending, EIO); |
| |
| transport->owner = NULL; |
| |
| if (owner->watch) |
| g_dbus_remove_watch(btd_get_dbus_connection(), owner->watch); |
| |
| media_owner_free(owner); |
| |
| if (state_in_use(transport->state)) |
| transport->suspend(transport, NULL); |
| } |
| |
| static gboolean media_transport_set_fd(struct media_transport *transport, |
| int fd, uint16_t imtu, uint16_t omtu) |
| { |
| if (transport->fd == fd) |
| return TRUE; |
| |
| transport->fd = fd; |
| transport->imtu = imtu; |
| transport->omtu = omtu; |
| |
| info("%s: fd(%d) ready", transport->path, fd); |
| |
| return TRUE; |
| } |
| |
| static void a2dp_resume_complete(struct avdtp *session, |
| struct avdtp_error *err, void *user_data) |
| { |
| struct media_owner *owner = user_data; |
| struct media_request *req = owner->pending; |
| struct media_transport *transport = owner->transport; |
| struct a2dp_sep *sep = media_endpoint_get_sep(transport->endpoint); |
| struct avdtp_stream *stream; |
| int fd; |
| uint16_t imtu, omtu; |
| gboolean ret; |
| |
| req->id = 0; |
| |
| if (err) |
| goto fail; |
| |
| stream = a2dp_sep_get_stream(sep); |
| if (stream == NULL) |
| goto fail; |
| |
| ret = avdtp_stream_get_transport(stream, &fd, &imtu, &omtu, NULL); |
| if (ret == FALSE) |
| goto fail; |
| |
| media_transport_set_fd(transport, fd, imtu, omtu); |
| |
| ret = g_dbus_send_reply(btd_get_dbus_connection(), req->msg, |
| DBUS_TYPE_UNIX_FD, &fd, |
| DBUS_TYPE_UINT16, &imtu, |
| DBUS_TYPE_UINT16, &omtu, |
| DBUS_TYPE_INVALID); |
| if (ret == FALSE) |
| goto fail; |
| |
| media_owner_remove(owner); |
| |
| transport_set_state(transport, TRANSPORT_STATE_ACTIVE); |
| |
| return; |
| |
| fail: |
| media_transport_remove_owner(transport); |
| } |
| |
| static guint resume_a2dp(struct media_transport *transport, |
| struct media_owner *owner) |
| { |
| struct a2dp_transport *a2dp = transport->data; |
| struct media_endpoint *endpoint = transport->endpoint; |
| struct a2dp_sep *sep = media_endpoint_get_sep(endpoint); |
| guint id; |
| |
| if (a2dp->session == NULL) { |
| a2dp->session = avdtp_get(transport->device); |
| if (a2dp->session == NULL) |
| return 0; |
| } |
| |
| if (state_in_use(transport->state)) |
| return a2dp_resume(a2dp->session, sep, a2dp_resume_complete, |
| owner); |
| |
| if (a2dp_sep_lock(sep, a2dp->session) == FALSE) |
| return 0; |
| |
| id = a2dp_resume(a2dp->session, sep, a2dp_resume_complete, owner); |
| |
| if (id == 0) { |
| a2dp_sep_unlock(sep, a2dp->session); |
| return 0; |
| } |
| |
| if (transport->state == TRANSPORT_STATE_IDLE) |
| transport_set_state(transport, TRANSPORT_STATE_REQUESTING); |
| |
| return id; |
| } |
| |
| static void a2dp_suspend_complete(struct avdtp *session, |
| struct avdtp_error *err, void *user_data) |
| { |
| struct media_owner *owner = user_data; |
| struct media_transport *transport = owner->transport; |
| struct a2dp_transport *a2dp = transport->data; |
| struct a2dp_sep *sep = media_endpoint_get_sep(transport->endpoint); |
| |
| /* Release always succeeds */ |
| if (owner->pending) { |
| owner->pending->id = 0; |
| media_request_reply(owner->pending, 0); |
| media_owner_remove(owner); |
| } |
| |
| a2dp_sep_unlock(sep, a2dp->session); |
| transport_set_state(transport, TRANSPORT_STATE_IDLE); |
| media_transport_remove_owner(transport); |
| } |
| |
| static guint suspend_a2dp(struct media_transport *transport, |
| struct media_owner *owner) |
| { |
| struct a2dp_transport *a2dp = transport->data; |
| struct media_endpoint *endpoint = transport->endpoint; |
| struct a2dp_sep *sep = media_endpoint_get_sep(endpoint); |
| |
| if (owner != NULL) |
| return a2dp_suspend(a2dp->session, sep, a2dp_suspend_complete, |
| owner); |
| |
| transport_set_state(transport, TRANSPORT_STATE_IDLE); |
| a2dp_sep_unlock(sep, a2dp->session); |
| |
| return 0; |
| } |
| |
| static void cancel_a2dp(struct media_transport *transport, guint id) |
| { |
| a2dp_cancel(id); |
| } |
| |
| static void media_owner_exit(DBusConnection *connection, void *user_data) |
| { |
| struct media_owner *owner = user_data; |
| |
| owner->watch = 0; |
| |
| media_owner_remove(owner); |
| |
| media_transport_remove_owner(owner->transport); |
| } |
| |
| static void media_transport_set_owner(struct media_transport *transport, |
| struct media_owner *owner) |
| { |
| DBG("Transport %s Owner %s", transport->path, owner->name); |
| transport->owner = owner; |
| owner->transport = transport; |
| owner->watch = g_dbus_add_disconnect_watch(btd_get_dbus_connection(), |
| owner->name, |
| media_owner_exit, |
| owner, NULL); |
| } |
| |
| static struct media_owner *media_owner_create(DBusMessage *msg) |
| { |
| struct media_owner *owner; |
| |
| owner = g_new0(struct media_owner, 1); |
| owner->name = g_strdup(dbus_message_get_sender(msg)); |
| |
| DBG("Owner created: sender=%s", owner->name); |
| |
| return owner; |
| } |
| |
| static void media_owner_add(struct media_owner *owner, |
| struct media_request *req) |
| { |
| DBG("Owner %s Request %s", owner->name, |
| dbus_message_get_member(req->msg)); |
| |
| owner->pending = req; |
| } |
| |
| static DBusMessage *acquire(DBusConnection *conn, DBusMessage *msg, |
| void *data) |
| { |
| struct media_transport *transport = data; |
| struct media_owner *owner; |
| struct media_request *req; |
| guint id; |
| |
| if (transport->owner != NULL) |
| return btd_error_not_authorized(msg); |
| |
| if (transport->state >= TRANSPORT_STATE_REQUESTING) |
| return btd_error_not_authorized(msg); |
| |
| owner = media_owner_create(msg); |
| id = transport->resume(transport, owner); |
| if (id == 0) { |
| media_owner_free(owner); |
| return btd_error_not_authorized(msg); |
| } |
| |
| req = media_request_create(msg, id); |
| media_owner_add(owner, req); |
| media_transport_set_owner(transport, owner); |
| |
| return NULL; |
| } |
| |
| static DBusMessage *try_acquire(DBusConnection *conn, DBusMessage *msg, |
| void *data) |
| { |
| struct media_transport *transport = data; |
| struct media_owner *owner; |
| struct media_request *req; |
| guint id; |
| |
| if (transport->owner != NULL) |
| return btd_error_not_authorized(msg); |
| |
| if (transport->state >= TRANSPORT_STATE_REQUESTING) |
| return btd_error_not_authorized(msg); |
| |
| if (transport->state != TRANSPORT_STATE_PENDING) |
| return btd_error_not_available(msg); |
| |
| owner = media_owner_create(msg); |
| id = transport->resume(transport, owner); |
| if (id == 0) { |
| media_owner_free(owner); |
| return btd_error_not_authorized(msg); |
| } |
| |
| req = media_request_create(msg, id); |
| media_owner_add(owner, req); |
| media_transport_set_owner(transport, owner); |
| |
| return NULL; |
| } |
| |
| static DBusMessage *release(DBusConnection *conn, DBusMessage *msg, |
| void *data) |
| { |
| struct media_transport *transport = data; |
| struct media_owner *owner = transport->owner; |
| const char *sender; |
| struct media_request *req; |
| guint id; |
| |
| sender = dbus_message_get_sender(msg); |
| |
| if (owner == NULL || g_strcmp0(owner->name, sender) != 0) |
| return btd_error_not_authorized(msg); |
| |
| if (owner->pending) { |
| const char *member; |
| |
| member = dbus_message_get_member(owner->pending->msg); |
| /* Cancel Acquire request if that exist */ |
| if (g_str_equal(member, "Acquire")) |
| media_owner_remove(owner); |
| else |
| return btd_error_in_progress(msg); |
| } |
| |
| transport_set_state(transport, TRANSPORT_STATE_SUSPENDING); |
| |
| id = transport->suspend(transport, owner); |
| if (id == 0) { |
| media_transport_remove_owner(transport); |
| return g_dbus_create_reply(msg, DBUS_TYPE_INVALID); |
| } |
| |
| req = media_request_create(msg, id); |
| media_owner_add(owner, req); |
| |
| return NULL; |
| } |
| |
| static gboolean get_device(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, void *data) |
| { |
| struct media_transport *transport = data; |
| const char *path = device_get_path(transport->device); |
| |
| dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH, &path); |
| |
| return TRUE; |
| } |
| |
| static gboolean get_uuid(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, void *data) |
| { |
| struct media_transport *transport = data; |
| const char *uuid = media_endpoint_get_uuid(transport->endpoint); |
| |
| dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING, &uuid); |
| |
| return TRUE; |
| } |
| |
| static gboolean get_codec(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, void *data) |
| { |
| struct media_transport *transport = data; |
| uint8_t codec = media_endpoint_get_codec(transport->endpoint); |
| |
| dbus_message_iter_append_basic(iter, DBUS_TYPE_BYTE, &codec); |
| |
| return TRUE; |
| } |
| |
| static gboolean get_configuration(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, void *data) |
| { |
| struct media_transport *transport = data; |
| DBusMessageIter array; |
| |
| dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY, |
| DBUS_TYPE_BYTE_AS_STRING, &array); |
| |
| dbus_message_iter_append_fixed_array(&array, DBUS_TYPE_BYTE, |
| &transport->configuration, |
| transport->size); |
| |
| dbus_message_iter_close_container(iter, &array); |
| |
| return TRUE; |
| } |
| |
| static gboolean get_state(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, void *data) |
| { |
| struct media_transport *transport = data; |
| const char *state = state2str(transport->state); |
| |
| dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING, &state); |
| |
| return TRUE; |
| } |
| |
| static gboolean delay_exists(const GDBusPropertyTable *property, void *data) |
| { |
| struct media_transport *transport = data; |
| struct a2dp_transport *a2dp = transport->data; |
| |
| return a2dp->delay != 0; |
| } |
| |
| static gboolean get_delay(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, void *data) |
| { |
| struct media_transport *transport = data; |
| struct a2dp_transport *a2dp = transport->data; |
| |
| dbus_message_iter_append_basic(iter, DBUS_TYPE_UINT16, &a2dp->delay); |
| |
| return TRUE; |
| } |
| |
| static gboolean volume_exists(const GDBusPropertyTable *property, void *data) |
| { |
| struct media_transport *transport = data; |
| struct a2dp_transport *a2dp = transport->data; |
| |
| return a2dp->volume <= 127; |
| } |
| |
| static gboolean get_volume(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, void *data) |
| { |
| struct media_transport *transport = data; |
| struct a2dp_transport *a2dp = transport->data; |
| |
| dbus_message_iter_append_basic(iter, DBUS_TYPE_UINT16, &a2dp->volume); |
| |
| return TRUE; |
| } |
| |
| static void set_volume(const GDBusPropertyTable *property, |
| DBusMessageIter *iter, GDBusPendingPropertySet id, |
| void *data) |
| { |
| struct media_transport *transport = data; |
| struct a2dp_transport *a2dp = transport->data; |
| uint16_t volume; |
| |
| if (dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_UINT16) { |
| g_dbus_pending_property_error(id, |
| ERROR_INTERFACE ".InvalidArguments", |
| "Invalid arguments in method call"); |
| return; |
| } |
| |
| dbus_message_iter_get_basic(iter, &volume); |
| |
| if (volume > 127) { |
| g_dbus_pending_property_error(id, |
| ERROR_INTERFACE ".InvalidArguments", |
| "Invalid arguments in method call"); |
| return; |
| } |
| |
| if (a2dp->volume != volume) |
| avrcp_set_volume(transport->device, volume); |
| |
| a2dp->volume = volume; |
| |
| g_dbus_pending_property_success(id); |
| } |
| |
| static const GDBusMethodTable transport_methods[] = { |
| { GDBUS_ASYNC_METHOD("Acquire", |
| NULL, |
| GDBUS_ARGS({ "fd", "h" }, { "mtu_r", "q" }, |
| { "mtu_w", "q" }), |
| acquire) }, |
| { GDBUS_ASYNC_METHOD("TryAcquire", |
| NULL, |
| GDBUS_ARGS({ "fd", "h" }, { "mtu_r", "q" }, |
| { "mtu_w", "q" }), |
| try_acquire) }, |
| { GDBUS_ASYNC_METHOD("Release", NULL, NULL, release) }, |
| { }, |
| }; |
| |
| static const GDBusPropertyTable transport_properties[] = { |
| { "Device", "o", get_device }, |
| { "UUID", "s", get_uuid }, |
| { "Codec", "y", get_codec }, |
| { "Configuration", "ay", get_configuration }, |
| { "State", "s", get_state }, |
| { "Delay", "q", get_delay, NULL, delay_exists }, |
| { "Volume", "q", get_volume, set_volume, volume_exists }, |
| { } |
| }; |
| |
| static void destroy_a2dp(void *data) |
| { |
| struct a2dp_transport *a2dp = data; |
| |
| if (a2dp->session) |
| avdtp_unref(a2dp->session); |
| |
| g_free(a2dp); |
| } |
| |
| static void media_transport_free(void *data) |
| { |
| struct media_transport *transport = data; |
| |
| transports = g_slist_remove(transports, transport); |
| |
| if (transport->owner) |
| media_transport_remove_owner(transport); |
| |
| if (transport->destroy != NULL) |
| transport->destroy(transport->data); |
| |
| g_free(transport->configuration); |
| g_free(transport->path); |
| g_free(transport); |
| } |
| |
| static void transport_update_playing(struct media_transport *transport, |
| gboolean playing) |
| { |
| DBG("%s State=%s Playing=%d", transport->path, |
| str_state[transport->state], playing); |
| |
| if (playing == FALSE) { |
| if (transport->state == TRANSPORT_STATE_PENDING) |
| transport_set_state(transport, TRANSPORT_STATE_IDLE); |
| else if (transport->state == TRANSPORT_STATE_ACTIVE) { |
| /* Remove owner */ |
| if (transport->owner != NULL) |
| media_transport_remove_owner(transport); |
| } |
| } else if (transport->state == TRANSPORT_STATE_IDLE) |
| transport_set_state(transport, TRANSPORT_STATE_PENDING); |
| } |
| |
| static void sink_state_changed(struct btd_service *service, |
| sink_state_t old_state, |
| sink_state_t new_state, |
| void *user_data) |
| { |
| struct media_transport *transport = user_data; |
| |
| if (new_state == SINK_STATE_PLAYING) |
| transport_update_playing(transport, TRUE); |
| else |
| transport_update_playing(transport, FALSE); |
| } |
| |
| static void source_state_changed(struct btd_service *service, |
| source_state_t old_state, |
| source_state_t new_state, |
| void *user_data) |
| { |
| struct media_transport *transport = user_data; |
| |
| if (new_state == SOURCE_STATE_PLAYING) |
| transport_update_playing(transport, TRUE); |
| else |
| transport_update_playing(transport, FALSE); |
| } |
| |
| static int media_transport_init_source(struct media_transport *transport) |
| { |
| struct btd_service *service; |
| struct a2dp_transport *a2dp; |
| |
| service = btd_device_get_service(transport->device, A2DP_SINK_UUID); |
| if (service == NULL) |
| return -EINVAL; |
| |
| a2dp = g_new0(struct a2dp_transport, 1); |
| |
| transport->resume = resume_a2dp; |
| transport->suspend = suspend_a2dp; |
| transport->cancel = cancel_a2dp; |
| transport->data = a2dp; |
| transport->destroy = destroy_a2dp; |
| |
| a2dp->volume = -1; |
| transport->sink_watch = sink_add_state_cb(service, sink_state_changed, |
| transport); |
| |
| return 0; |
| } |
| |
| static int media_transport_init_sink(struct media_transport *transport) |
| { |
| struct btd_service *service; |
| struct a2dp_transport *a2dp; |
| |
| service = btd_device_get_service(transport->device, A2DP_SOURCE_UUID); |
| if (service == NULL) |
| return -EINVAL; |
| |
| a2dp = g_new0(struct a2dp_transport, 1); |
| |
| transport->resume = resume_a2dp; |
| transport->suspend = suspend_a2dp; |
| transport->cancel = cancel_a2dp; |
| transport->data = a2dp; |
| transport->destroy = destroy_a2dp; |
| |
| a2dp->volume = 127; |
| avrcp_set_volume(transport->device, a2dp->volume); |
| transport->source_watch = source_add_state_cb(service, |
| source_state_changed, |
| transport); |
| |
| return 0; |
| } |
| |
| struct media_transport *media_transport_create(struct btd_device *device, |
| uint8_t *configuration, |
| size_t size, void *data) |
| { |
| struct media_endpoint *endpoint = data; |
| struct media_transport *transport; |
| const char *uuid; |
| static int fd = 0; |
| |
| transport = g_new0(struct media_transport, 1); |
| transport->device = device; |
| transport->endpoint = endpoint; |
| transport->configuration = g_new(uint8_t, size); |
| memcpy(transport->configuration, configuration, size); |
| transport->size = size; |
| transport->path = g_strdup_printf("%s/fd%d", device_get_path(device), |
| fd++); |
| transport->fd = -1; |
| |
| uuid = media_endpoint_get_uuid(endpoint); |
| if (strcasecmp(uuid, A2DP_SOURCE_UUID) == 0) { |
| if (media_transport_init_source(transport) < 0) |
| goto fail; |
| } else if (strcasecmp(uuid, A2DP_SINK_UUID) == 0) { |
| if (media_transport_init_sink(transport) < 0) |
| goto fail; |
| } else |
| goto fail; |
| |
| if (g_dbus_register_interface(btd_get_dbus_connection(), |
| transport->path, MEDIA_TRANSPORT_INTERFACE, |
| transport_methods, NULL, transport_properties, |
| transport, media_transport_free) == FALSE) { |
| error("Could not register transport %s", transport->path); |
| goto fail; |
| } |
| |
| transports = g_slist_append(transports, transport); |
| |
| return transport; |
| |
| fail: |
| media_transport_free(transport); |
| return NULL; |
| } |
| |
| const char *media_transport_get_path(struct media_transport *transport) |
| { |
| return transport->path; |
| } |
| |
| void media_transport_update_delay(struct media_transport *transport, |
| uint16_t delay) |
| { |
| struct a2dp_transport *a2dp = transport->data; |
| |
| /* Check if delay really changed */ |
| if (a2dp->delay == delay) |
| return; |
| |
| a2dp->delay = delay; |
| |
| g_dbus_emit_property_changed(btd_get_dbus_connection(), |
| transport->path, |
| MEDIA_TRANSPORT_INTERFACE, "Delay"); |
| } |
| |
| struct btd_device *media_transport_get_dev(struct media_transport *transport) |
| { |
| return transport->device; |
| } |
| |
| uint16_t media_transport_get_volume(struct media_transport *transport) |
| { |
| struct a2dp_transport *a2dp = transport->data; |
| return a2dp->volume; |
| } |
| |
| void media_transport_update_volume(struct media_transport *transport, |
| uint8_t volume) |
| { |
| struct a2dp_transport *a2dp = transport->data; |
| |
| /* Check if volume really changed */ |
| if (a2dp->volume == volume) |
| return; |
| |
| a2dp->volume = volume; |
| |
| g_dbus_emit_property_changed(btd_get_dbus_connection(), |
| transport->path, |
| MEDIA_TRANSPORT_INTERFACE, "Volume"); |
| } |
| |
| uint8_t media_transport_get_device_volume(struct btd_device *dev) |
| { |
| GSList *l; |
| |
| if (dev == NULL) |
| return 128; |
| |
| for (l = transports; l; l = l->next) { |
| struct media_transport *transport = l->data; |
| if (transport->device != dev) |
| continue; |
| |
| /* Volume is A2DP only */ |
| if (media_endpoint_get_sep(transport->endpoint)) |
| return media_transport_get_volume(transport); |
| } |
| |
| return 0; |
| } |
| |
| void media_transport_update_device_volume(struct btd_device *dev, |
| uint8_t volume) |
| { |
| GSList *l; |
| |
| if (dev == NULL) |
| return; |
| |
| for (l = transports; l; l = l->next) { |
| struct media_transport *transport = l->data; |
| if (transport->device != dev) |
| continue; |
| |
| /* Volume is A2DP only */ |
| if (media_endpoint_get_sep(transport->endpoint)) |
| media_transport_update_volume(transport, volume); |
| } |
| } |