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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 "android.hardware.power@1.1-impl"
#include <log/log.h>
#include <hardware/hardware.h>
#include <hardware/power.h>
#include "Power.h"
namespace android {
namespace hardware {
namespace power {
namespace V1_1 {
namespace implementation {
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::power::V1_1::PowerStateSubsystem;
using ::android::hardware::hidl_vec;
using ::android::hardware::Return;
using ::android::hardware::Void;
Power::Power(power_module_t *module) : mModule(module) {
if (mModule)
mModule->init(mModule);
}
Power::~Power() {
delete(mModule);
}
// Methods from ::android::hardware::power::V1_0::IPower follow.
Return<void> Power::setInteractive(bool interactive) {
if (mModule->setInteractive)
mModule->setInteractive(mModule, interactive ? 1 : 0);
return Void();
}
Return<void> Power::powerHint(PowerHint hint, int32_t data) {
int32_t param = data;
if (mModule->powerHint) {
if (data)
mModule->powerHint(mModule, static_cast<power_hint_t>(hint), ¶m);
else
mModule->powerHint(mModule, static_cast<power_hint_t>(hint), NULL);
}
return Void();
}
Return<void> Power::setFeature(Feature feature, bool activate) {
if (mModule->setFeature)
mModule->setFeature(mModule, static_cast<feature_t>(feature),
activate ? 1 : 0);
return Void();
}
Return<void> Power::getPlatformLowPowerStats(getPlatformLowPowerStats_cb _hidl_cb) {
hidl_vec<PowerStatePlatformSleepState> states;
ssize_t number_platform_modes;
size_t *voters = nullptr;
power_state_platform_sleep_state_t *legacy_states = nullptr;
int ret;
if (mModule->get_number_of_platform_modes == nullptr ||
mModule->get_voter_list == nullptr ||
mModule->get_platform_low_power_stats == nullptr)
{
_hidl_cb(states, Status::SUCCESS);
return Void();
}
number_platform_modes = mModule->get_number_of_platform_modes(mModule);
if (number_platform_modes)
{
if ((ssize_t) (SIZE_MAX / sizeof(size_t)) <= number_platform_modes) // overflow
goto done;
voters = new (std::nothrow) size_t [number_platform_modes];
if (voters == nullptr)
goto done;
ret = mModule->get_voter_list(mModule, voters);
if (ret != 0)
goto done;
if ((ssize_t) (SIZE_MAX / sizeof(power_state_platform_sleep_state_t))
<= number_platform_modes) // overflow
goto done;
legacy_states = new (std::nothrow)
power_state_platform_sleep_state_t [number_platform_modes];
if (legacy_states == nullptr)
goto done;
for (int i = 0; i < number_platform_modes; i++)
{
legacy_states[i].voters = nullptr;
legacy_states[i].voters = new power_state_voter_t [voters[i]];
if (legacy_states[i].voters == nullptr)
goto done;
}
ret = mModule->get_platform_low_power_stats(mModule, legacy_states);
if (ret != 0)
goto done;
states.resize(number_platform_modes);
for (int i = 0; i < number_platform_modes; i++)
{
power_state_platform_sleep_state_t& legacy_state = legacy_states[i];
PowerStatePlatformSleepState& state = states[i];
state.name = legacy_state.name;
state.residencyInMsecSinceBoot = legacy_state.residency_in_msec_since_boot;
state.totalTransitions = legacy_state.total_transitions;
state.supportedOnlyInSuspend = legacy_state.supported_only_in_suspend;
state.voters.resize(voters[i]);
for(size_t j = 0; j < voters[i]; j++)
{
state.voters[j].name = legacy_state.voters[j].name;
state.voters[j].totalTimeInMsecVotedForSinceBoot = legacy_state.voters[j].total_time_in_msec_voted_for_since_boot;
state.voters[j].totalNumberOfTimesVotedSinceBoot = legacy_state.voters[j].total_number_of_times_voted_since_boot;
}
}
}
done:
if (legacy_states)
{
for (int i = 0; i < number_platform_modes; i++)
{
if(legacy_states[i].voters)
delete(legacy_states[i].voters);
}
}
delete[] legacy_states;
delete[] voters;
_hidl_cb(states, Status::SUCCESS);
return Void();
}
// Methods from ::android::hardware::power::V1_1::IPower follow.
Return<void> Power::getSubsystemLowPowerStats(getSubsystemLowPowerStats_cb _hidl_cb) {
hidl_vec<PowerStateSubsystem> subsystems;
ssize_t number_subsystems = 0;
//This API will report zero subsystems to support older devices
//For devices that support this API, they will have their own implementation
subsystems.resize(number_subsystems);
_hidl_cb(subsystems, Status::SUCCESS);
return Void();
}
Return<void> Power::powerHintAsync(PowerHint hint, int32_t data) {
// just call the normal power hint in this oneway function
return powerHint(hint, data);
}
} // namespace implementation
} // namespace V1_1
} // namespace power
} // namespace hardware
} // namespace android
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