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/*
* Copyright (C) 2022 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 "powerhal_helper.h"
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/properties.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include <android/binder_manager.h>
#include <iterator>
#include <set>
#include <sstream>
#include <thread>
#include <vector>
#include "thermal_info.h"
#include "thermal_throttling.h"
namespace aidl {
namespace android {
namespace hardware {
namespace thermal {
namespace implementation {
using ::android::base::StringPrintf;
PowerHalService::PowerHalService()
: power_hal_aidl_exist_(true), power_hal_aidl_(nullptr), power_hal_ext_aidl_(nullptr) {
connect();
}
bool PowerHalService::connect() {
std::lock_guard<std::mutex> lock(lock_);
if (!power_hal_aidl_exist_) {
return false;
}
if (power_hal_aidl_ && power_hal_ext_aidl_) {
return true;
}
const std::string kInstance = std::string(IPower::descriptor) + "/default";
ndk::SpAIBinder power_binder = ndk::SpAIBinder(AServiceManager_getService(kInstance.c_str()));
ndk::SpAIBinder ext_power_binder;
if (power_binder.get() == nullptr) {
LOG(ERROR) << "Cannot get Power Hal Binder";
power_hal_aidl_exist_ = false;
return false;
}
power_hal_aidl_ = IPower::fromBinder(power_binder);
if (power_hal_aidl_ == nullptr) {
power_hal_aidl_exist_ = false;
LOG(ERROR) << "Cannot get Power Hal AIDL" << kInstance.c_str();
return false;
}
if (STATUS_OK != AIBinder_getExtension(power_binder.get(), ext_power_binder.getR()) ||
ext_power_binder.get() == nullptr) {
LOG(ERROR) << "Cannot get Power Hal Extension Binder";
power_hal_aidl_exist_ = false;
return false;
}
power_hal_ext_aidl_ = IPowerExt::fromBinder(ext_power_binder);
if (power_hal_ext_aidl_ == nullptr) {
LOG(ERROR) << "Cannot get Power Hal Extension AIDL";
power_hal_aidl_exist_ = false;
}
return true;
}
bool PowerHalService::isModeSupported(const std::string &type, const ThrottlingSeverity &t) {
bool isSupported = false;
if (!connect()) {
return false;
}
std::string power_hint = StringPrintf("THERMAL_%s_%s", type.c_str(), toString(t).c_str());
lock_.lock();
if (!power_hal_ext_aidl_->isModeSupported(power_hint, &isSupported).isOk()) {
LOG(ERROR) << "Fail to check supported mode, Hint: " << power_hint;
power_hal_ext_aidl_ = nullptr;
power_hal_aidl_ = nullptr;
lock_.unlock();
return false;
}
lock_.unlock();
return isSupported;
}
void PowerHalService::setMode(const std::string &type, const ThrottlingSeverity &t,
const bool &enable, const bool error_on_exit) {
if (!connect()) {
return;
}
std::string power_hint = StringPrintf("THERMAL_%s_%s", type.c_str(), toString(t).c_str());
LOG(INFO) << (error_on_exit ? "Resend Hint " : "Send Hint ") << power_hint
<< " Enable: " << std::boolalpha << enable;
lock_.lock();
if (!power_hal_ext_aidl_->setMode(power_hint, enable).isOk()) {
LOG(ERROR) << "Fail to set mode, Hint: " << power_hint;
power_hal_ext_aidl_ = nullptr;
power_hal_aidl_ = nullptr;
lock_.unlock();
if (!error_on_exit) {
setMode(type, t, enable, true);
}
return;
}
lock_.unlock();
}
} // namespace implementation
} // namespace thermal
} // namespace hardware
} // namespace android
} // namespace aidl
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