android_device_xiaomi_sdm66.../power-libperfmgr/power/power-mode.cpp
ghostrider-reborn 79c64bc007 sdm660-common: Introduce kernelspace battery saver
* Needs Kernel side support
 * This activates kernelspace battery saver via powerhal whenever
   battery saver is enabled in userspace, thereby lowering power
   consumption at kernel-level by disabling boosts and such

Signed-off-by: clarencelol <clarencekuiek@icloud.com>
Change-Id: I2623503db27d7518de519bcaa3f5af6ab83879d0
2021-11-13 11:31:49 +01:00

55 lines
1.5 KiB
C++

/*
* 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.
*/
#include <aidl/android/hardware/power/BnPower.h>
#include <android-base/file.h>
#include "power-common.h"
#define BATTERY_SAVER_NODE "/sys/module/battery_saver/parameters/enabled"
namespace aidl {
namespace android {
namespace hardware {
namespace power {
namespace impl {
using ::aidl::android::hardware::power::Mode;
bool isDeviceSpecificModeSupported(Mode type, bool* _aidl_return) {
switch (type) {
case Mode::LOW_POWER:
*_aidl_return = true;
return true;
default:
return false;
}
}
bool setDeviceSpecificMode(Mode type, bool enabled) {
switch (type) {
case Mode::LOW_POWER:
::android::base::WriteStringToFile(enabled ? "Y" : "N", BATTERY_SAVER_NODE, true);
return true;
default:
return false;
}
}
} // namespace impl
} // namespace power
} // namespace hardware
} // namespace android
} // namespace aidl