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/*
* Copyright (C) 2017 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 DEBUG false // STOPSHIP if true
#include "Log.h"
#include <android/hardware/power/1.0/IPower.h>
#include <android/hardware/power/1.1/IPower.h>
#include <fcntl.h>
#include <hardware/power.h>
#include <hardware_legacy/power.h>
#include <inttypes.h>
#include <semaphore.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include "external/SubsystemSleepStatePuller.h"
#include "external/StatsPuller.h"
#include "SubsystemSleepStatePuller.h"
#include "logd/LogEvent.h"
#include "statslog.h"
using android::hardware::hidl_vec;
using android::hardware::power::V1_0::IPower;
using android::hardware::power::V1_0::PowerStatePlatformSleepState;
using android::hardware::power::V1_0::PowerStateVoter;
using android::hardware::power::V1_0::Status;
using android::hardware::power::V1_1::PowerStateSubsystem;
using android::hardware::power::V1_1::PowerStateSubsystemSleepState;
using android::hardware::Return;
using android::hardware::Void;
using std::make_shared;
using std::shared_ptr;
namespace android {
namespace os {
namespace statsd {
sp<android::hardware::power::V1_0::IPower> gPowerHalV1_0 = nullptr;
sp<android::hardware::power::V1_1::IPower> gPowerHalV1_1 = nullptr;
std::mutex gPowerHalMutex;
bool gPowerHalExists = true;
bool getPowerHal() {
if (gPowerHalExists && gPowerHalV1_0 == nullptr) {
gPowerHalV1_0 = android::hardware::power::V1_0::IPower::getService();
if (gPowerHalV1_0 != nullptr) {
gPowerHalV1_1 = android::hardware::power::V1_1::IPower::castFrom(gPowerHalV1_0);
ALOGI("Loaded power HAL service");
} else {
ALOGW("Couldn't load power HAL service");
gPowerHalExists = false;
}
}
return gPowerHalV1_0 != nullptr;
}
SubsystemSleepStatePuller::SubsystemSleepStatePuller() : StatsPuller(android::util::SUBSYSTEM_SLEEP_STATE) {
}
bool SubsystemSleepStatePuller::PullInternal(vector<shared_ptr<LogEvent>>* data) {
std::lock_guard<std::mutex> lock(gPowerHalMutex);
if (!getPowerHal()) {
ALOGE("Power Hal not loaded");
return false;
}
uint64_t timestamp = time(nullptr) * NS_PER_SEC;
data->clear();
Return<void> ret;
ret = gPowerHalV1_0->getPlatformLowPowerStats(
[&data, timestamp](hidl_vec<PowerStatePlatformSleepState> states, Status status) {
if (status != Status::SUCCESS) return;
for (size_t i = 0; i < states.size(); i++) {
const PowerStatePlatformSleepState& state = states[i];
auto statePtr = make_shared<LogEvent>(android::util::SUBSYSTEM_SLEEP_STATE,
timestamp);
statePtr->write(state.name);
statePtr->write("");
statePtr->write(state.totalTransitions);
statePtr->write(state.residencyInMsecSinceBoot);
statePtr->init();
data->push_back(statePtr);
VLOG("powerstate: %s, %lld, %lld, %d", state.name.c_str(),
(long long)state.residencyInMsecSinceBoot,
(long long)state.totalTransitions,
state.supportedOnlyInSuspend ? 1 : 0);
for (auto voter : state.voters) {
auto voterPtr = make_shared<LogEvent>(android::util::SUBSYSTEM_SLEEP_STATE,
timestamp);
voterPtr->write(state.name);
voterPtr->write(voter.name);
voterPtr->write(voter.totalNumberOfTimesVotedSinceBoot);
voterPtr->write(voter.totalTimeInMsecVotedForSinceBoot);
voterPtr->init();
data->push_back(voterPtr);
VLOG("powerstatevoter: %s, %s, %lld, %lld", state.name.c_str(),
voter.name.c_str(),
(long long)voter.totalTimeInMsecVotedForSinceBoot,
(long long)voter.totalNumberOfTimesVotedSinceBoot);
}
}
});
if (!ret.isOk()) {
ALOGE("getLowPowerStats() failed: power HAL service not available");
gPowerHalV1_0 = nullptr;
return false;
}
// Trying to cast to IPower 1.1, this will succeed only for devices supporting 1.1
sp<android::hardware::power::V1_1::IPower> gPowerHal_1_1 =
android::hardware::power::V1_1::IPower::castFrom(gPowerHalV1_0);
if (gPowerHal_1_1 != nullptr) {
ret = gPowerHal_1_1->getSubsystemLowPowerStats(
[&data, timestamp](hidl_vec<PowerStateSubsystem> subsystems, Status status) {
if (status != Status::SUCCESS) return;
if (subsystems.size() > 0) {
for (size_t i = 0; i < subsystems.size(); i++) {
const PowerStateSubsystem& subsystem = subsystems[i];
for (size_t j = 0; j < subsystem.states.size(); j++) {
const PowerStateSubsystemSleepState& state =
subsystem.states[j];
auto subsystemStatePtr = make_shared<LogEvent>(
android::util::SUBSYSTEM_SLEEP_STATE, timestamp);
subsystemStatePtr->write(subsystem.name);
subsystemStatePtr->write(state.name);
subsystemStatePtr->write(state.totalTransitions);
subsystemStatePtr->write(state.residencyInMsecSinceBoot);
subsystemStatePtr->init();
data->push_back(subsystemStatePtr);
VLOG("subsystemstate: %s, %s, %lld, %lld, %lld",
subsystem.name.c_str(), state.name.c_str(),
(long long)state.residencyInMsecSinceBoot,
(long long)state.totalTransitions,
(long long)state.lastEntryTimestampMs);
}
}
}
});
}
return true;
}
} // namespace statsd
} // namespace os
} // namespace android
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