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/*
* 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.
*/
#define LOG_TAG "power_hidl_hal_test"
#include <android-base/logging.h>
#include <cutils/properties.h>
#include <android-base/file.h>
#include <android-base/strings.h>
#include <android-base/unique_fd.h>
#include <android/hardware/power/1.0/IPower.h>
#include <gtest/gtest.h>
#include <hidl/GtestPrinter.h>
#include <hidl/ServiceManagement.h>
#include <fcntl.h>
#include <algorithm>
using ::android::hardware::power::V1_0::IPower;
using ::android::hardware::power::V1_0::Feature;
using ::android::hardware::power::V1_0::PowerHint;
using ::android::hardware::power::V1_0::PowerStatePlatformSleepState;
using ::android::hardware::power::V1_0::Status;
using ::android::hardware::hidl_vec;
using ::android::hardware::Return;
using ::android::sp;
using ::android::base::unique_fd;
using std::vector;
#define CPU_GOVERNOR_PATH \
"/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
#define AVAILABLE_GOVERNORS_PATH \
"/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"
class PowerHidlTest : public testing::TestWithParam<std::string> {
public:
virtual void SetUp() override {
power = IPower::getService(GetParam());
ASSERT_NE(power, nullptr);
}
virtual void TearDown() override {}
sp<IPower> power;
};
// Validate Power::setInteractive.
TEST_P(PowerHidlTest, SetInteractive) {
Return<void> ret;
ret = power->setInteractive(true);
ASSERT_TRUE(ret.isOk());
ret = power->setInteractive(false);
ASSERT_TRUE(ret.isOk());
}
// Test Power::setInteractive and Power::powerHint(Launch)
// with each available CPU governor, if available
TEST_P(PowerHidlTest, TryDifferentGovernors) {
Return<void> ret;
std::string old_governor, governors;
if (!android::base::ReadFileToString(CPU_GOVERNOR_PATH, &old_governor) ||
!android::base::ReadFileToString(AVAILABLE_GOVERNORS_PATH, &governors)) {
// Files don't exist, so skip the rest of the test case
SUCCEED();
return;
}
auto all_governors = android::base::Split(governors, " \n");
for (const auto &governor : all_governors) {
ASSERT_TRUE(android::base::WriteStringToFile(governor, CPU_GOVERNOR_PATH));
ret = power->setInteractive(true);
ASSERT_TRUE(ret.isOk());
ret = power->setInteractive(false);
ASSERT_TRUE(ret.isOk());
ret = power->setInteractive(false);
ASSERT_TRUE(ret.isOk());
power->powerHint(PowerHint::LAUNCH, 1);
power->powerHint(PowerHint::LAUNCH, 0);
}
ASSERT_TRUE(android::base::WriteStringToFile(old_governor, CPU_GOVERNOR_PATH));
}
// Validate Power::powerHint on good and bad inputs.
TEST_P(PowerHidlTest, PowerHint) {
PowerHint badHint = static_cast<PowerHint>(0xA);
auto hints = {PowerHint::VSYNC, PowerHint::INTERACTION,
PowerHint::VIDEO_ENCODE, PowerHint::VIDEO_DECODE,
PowerHint::LOW_POWER, PowerHint::SUSTAINED_PERFORMANCE,
PowerHint::VR_MODE, PowerHint::LAUNCH,
badHint};
Return<void> ret;
for (auto hint : hints) {
ret = power->powerHint(hint, 30000);
ASSERT_TRUE(ret.isOk());
ret = power->powerHint(hint, 0);
ASSERT_TRUE(ret.isOk());
}
// Turning these hints on in different orders triggers different code paths,
// so iterate over possible orderings.
std::vector<PowerHint> hints2 = {PowerHint::LAUNCH, PowerHint::VR_MODE,
PowerHint::SUSTAINED_PERFORMANCE,
PowerHint::INTERACTION};
auto compareHints = [](PowerHint l, PowerHint r) {
return static_cast<uint32_t>(l) < static_cast<uint32_t>(r);
};
std::sort(hints2.begin(), hints2.end(), compareHints);
do {
for (auto iter = hints2.begin(); iter != hints2.end(); iter++) {
ret = power->powerHint(*iter, 0);
ASSERT_TRUE(ret.isOk());
}
for (auto iter = hints2.begin(); iter != hints2.end(); iter++) {
ret = power->powerHint(*iter, 30000);
ASSERT_TRUE(ret.isOk());
}
} while (std::next_permutation(hints2.begin(), hints2.end(), compareHints));
}
// Validate Power::setFeature() on good and bad inputs.
TEST_P(PowerHidlTest, SetFeature) {
Return<void> ret;
ret = power->setFeature(Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE, true);
ASSERT_TRUE(ret.isOk());
ret = power->setFeature(Feature::POWER_FEATURE_DOUBLE_TAP_TO_WAKE, false);
ASSERT_TRUE(ret.isOk());
Feature badFeature = static_cast<Feature>(0x2);
ret = power->setFeature(badFeature, true);
ASSERT_TRUE(ret.isOk());
ret = power->setFeature(badFeature, false);
ASSERT_TRUE(ret.isOk());
}
// Validate Power::getPlatformLowPowerStats().
TEST_P(PowerHidlTest, GetPlatformLowPowerStats) {
hidl_vec<PowerStatePlatformSleepState> vec;
Status s;
auto cb = [&vec, &s](hidl_vec<PowerStatePlatformSleepState> states,
Status status) {
vec = states;
s = status;
};
Return<void> ret = power->getPlatformLowPowerStats(cb);
ASSERT_TRUE(ret.isOk());
ASSERT_TRUE(s == Status::SUCCESS || s == Status::FILESYSTEM_ERROR);
}
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(PowerHidlTest);
INSTANTIATE_TEST_SUITE_P(
PerInstance, PowerHidlTest,
testing::ValuesIn(android::hardware::getAllHalInstanceNames(IPower::descriptor)),
android::hardware::PrintInstanceNameToString);
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