android_device_xiaomi_sm835.../powershare/PowerShare.cpp

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/*
* Copyright (C) 2020 The LineageOS 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 "PowerShareService"
#include "PowerShare.h"
#include <hidl/HidlTransportSupport.h>
#include <fstream>
namespace vendor {
namespace lineage {
namespace powershare {
namespace V1_0 {
namespace implementation {
#define WIRELESS_TX_PATH "/sys/class/qcom-battery/reverse_chg_mode"
/*
* Write value to path and close file.
*/
static void set(std::string path, std::string value) {
std::ofstream file(path);
if (!file.is_open()) {
ALOGW("failed to write %s to %s", value.c_str(), path.c_str());
return;
}
file << value;
}
template <typename T>
static T get(const std::string& path, const T& def) {
std::ifstream file(path);
T result;
file >> result;
return file.fail() ? def : result;
}
Return<bool> PowerShare::isEnabled() {
return get<std::string>(WIRELESS_TX_PATH, std::to_string(0)) != std::to_string(0);
}
Return<bool> PowerShare::setEnabled(bool enable) {
if(enable){
set(WIRELESS_TX_PATH, std::to_string(1));
}else{
set(WIRELESS_TX_PATH, std::to_string(0));
}
return isEnabled();
}
Return<uint32_t> PowerShare::getMinBattery() {
return 0;
}
Return<uint32_t> PowerShare::setMinBattery(uint32_t) {
return getMinBattery();
}
} // namespace implementation
} // namespace V1_0
} // namespace powershare
} // namespace lineage
} // namespace vendor