forked from donjohanliebert/hardware_xiaomi
40 lines
926 B
C++
40 lines
926 B
C++
/*
|
|
* Copyright (C) 2021-2022 The LineageOS Project
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include "LED.h"
|
|
|
|
#include "Utils.h"
|
|
|
|
namespace aidl {
|
|
namespace android {
|
|
namespace hardware {
|
|
namespace light {
|
|
|
|
static const uint32_t kDefaultMaxLedBrightness = 255;
|
|
|
|
LED::LED(std::string type) : mBasePath("/sys/class/leds/" + type + "/") {
|
|
if (!readFromFile(mBasePath + "max_brightness", &mMaxBrightness))
|
|
mMaxBrightness = kDefaultMaxLedBrightness;
|
|
mBreath = fileWriteable(mBasePath + "breath");
|
|
}
|
|
|
|
bool LED::exists() {
|
|
return fileWriteable(mBasePath + "brightness");
|
|
}
|
|
|
|
bool LED::setBreath(uint8_t value) {
|
|
return writeToFile(mBasePath + (mBreath ? "breath" : "blink"), value);
|
|
}
|
|
|
|
bool LED::setBrightness(uint8_t value) {
|
|
return writeToFile(mBasePath + "brightness", value * mMaxBrightness / 0xFF);
|
|
}
|
|
|
|
} // namespace light
|
|
} // namespace hardware
|
|
} // namespace android
|
|
} // namespace aidl
|