| /* |
| * 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. |
| */ |
| |
| #include <memory> |
| |
| #include <binderwrapper/binder_test_base.h> |
| #include <binderwrapper/stub_binder_wrapper.h> |
| #include <gtest/gtest.h> |
| |
| #include "gpio_driver_mock.h" |
| #include "peripheral_manager.h" |
| #include "peripheralmanager/gpio.h" |
| #include "peripheralmanager/peripheral_manager_client.h" |
| |
| using android::GpioDriverInfo; |
| using android::GpioDriverInfoBase; |
| using android::GpioDriverMock; |
| using android::GpioManager; |
| using android::PeripheralManager; |
| |
| // Base class used to test the Gpio C API. |
| // As we rely on static, global managers, we cannot run this tests in parallel. |
| // Please use -j1 when running theses tests or you may see false negatives. |
| class GpioTest : public android::BinderTestBase { |
| public: |
| void SetUp() { |
| android::sp<PeripheralManager> pman(new PeripheralManager); |
| android::String8 interface_desc(pman->getInterfaceDescriptor()); |
| binder_wrapper()->SetBinderForService(interface_desc.string(), pman); |
| |
| GpioManager* man = GpioManager::GetGpioManager(); |
| man->RegisterDriver(std::unique_ptr<GpioDriverInfoBase>( |
| new GpioDriverInfo<GpioDriverMock, void*>(nullptr))); |
| |
| man->RegisterGpioSysfs("IO1", 1); |
| man->RegisterGpioSysfs("IO2", 2); |
| man->RegisterGpioSysfs("IO3", 3); |
| man->RegisterGpioSysfs("IO4", 4); |
| man->RegisterGpioSysfs("IO5", 5); |
| } |
| |
| void TearDown() { GpioManager::ResetGpioManager(); } |
| }; |
| |
| // Test that we list the Gpios available correctly. |
| TEST_F(GpioTest, CanListGpios) { |
| BPeripheralManagerClient* client = BPeripheralManagerClient_new(); |
| ASSERT_NE(nullptr, client); |
| |
| int ngpios; |
| char** list = BPeripheralManagerClient_listGpio(client, &ngpios); |
| |
| EXPECT_EQ(5, ngpios); |
| EXPECT_EQ("IO1", std::string(list[0])); |
| EXPECT_EQ("IO2", std::string(list[1])); |
| EXPECT_EQ("IO3", std::string(list[2])); |
| EXPECT_EQ("IO4", std::string(list[3])); |
| EXPECT_EQ("IO5", std::string(list[4])); |
| |
| // Free the list. |
| for (int i = 0; i < 5; i++) { |
| free(list[i]); |
| } |
| free(list); |
| } |
| |
| // Test that we can open a Gpio and act on it. |
| TEST_F(GpioTest, CanOpenGpio) { |
| BPeripheralManagerClient* client = BPeripheralManagerClient_new(); |
| ASSERT_NE(nullptr, client); |
| |
| BGpio* gpio; |
| EXPECT_EQ(0, BPeripheralManagerClient_openGpio(client, "IO1", &gpio)); |
| ASSERT_NE(nullptr, gpio); |
| |
| // Can set the direction. If the direction is invalid, we fail. |
| EXPECT_EQ(0, BGpio_setDirection(gpio, DIRECTION_OUT_INITIALLY_HIGH)); |
| EXPECT_EQ(EINVAL, BGpio_setDirection(gpio, 10)); |
| |
| // Can set the value. |
| EXPECT_EQ(0, BGpio_setValue(gpio, 1)); |
| |
| // Can set the active type. If the type is unknown, we fail. |
| EXPECT_EQ(0, BGpio_setActiveType(gpio, ACTIVE_LOW)); |
| EXPECT_EQ(EINVAL, BGpio_setActiveType(gpio, 5)); |
| |
| EXPECT_EQ(0, BGpio_setDirection(gpio, DIRECTION_IN)); |
| |
| // Can read the value from the Gpio. |
| int value; |
| EXPECT_EQ(0, BGpio_getValue(gpio, &value)); |
| |
| // Setting the value returns an error. |
| EXPECT_EQ(EREMOTEIO, BGpio_setValue(gpio, 1)); |
| |
| // Can set the edge type. If the type is unknown, we fail. |
| EXPECT_EQ(0, BGpio_setEdgeTriggerType(gpio, RISING_EDGE)); |
| EXPECT_EQ(EINVAL, BGpio_setEdgeTriggerType(gpio, -1)); |
| |
| BGpio_delete(gpio); |
| BPeripheralManagerClient_delete(client); |
| } |
| |
| // Test that openning an unknown Gpio fails. |
| TEST_F(GpioTest, OpenningUnknownGpioFails) { |
| BPeripheralManagerClient* client = BPeripheralManagerClient_new(); |
| ASSERT_NE(nullptr, client); |
| |
| BGpio* gpio = nullptr; |
| EXPECT_EQ(ENODEV, |
| BPeripheralManagerClient_openGpio(client, "unknown", &gpio)); |
| EXPECT_EQ(nullptr, gpio); |
| |
| BPeripheralManagerClient_delete(client); |
| } |
| |
| // Test that we track ownership correctly (can't open a Gpio twice). |
| TEST_F(GpioTest, GpioOnlyOpenedOnce) { |
| BPeripheralManagerClient* client = BPeripheralManagerClient_new(); |
| ASSERT_NE(nullptr, client); |
| |
| BGpio* gpio1; |
| BGpio* gpio2; |
| BGpio* gpio3; |
| |
| EXPECT_EQ(0, BPeripheralManagerClient_openGpio(client, "IO1", &gpio1)); |
| EXPECT_NE(nullptr, gpio1); |
| |
| // Can't open the same Gpio. |
| EXPECT_EQ(EBUSY, BPeripheralManagerClient_openGpio(client, "IO1", &gpio2)); |
| |
| // Can open another Gpio. |
| EXPECT_EQ(0, BPeripheralManagerClient_openGpio(client, "IO3", &gpio3)); |
| |
| // Once we delete the struct, the Gpio is released and we can open it. |
| BGpio_delete(gpio1); |
| EXPECT_EQ(0, BPeripheralManagerClient_openGpio(client, "IO1", &gpio2)); |
| |
| BGpio_delete(gpio2); |
| BGpio_delete(gpio3); |
| BPeripheralManagerClient_delete(client); |
| } |