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/*
* Copyright (C) 2018-2019 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 "android.hardware.light@2.0-service.msm8916"
#include <android-base/logging.h>
#include <hidl/HidlTransportSupport.h>
#include <utils/Errors.h>
#include "Light.h"
// libhwbinder:
using android::hardware::configureRpcThreadpool;
using android::hardware::joinRpcThreadpool;
// Generated HIDL files
using android::hardware::light::V2_0::ILight;
using android::hardware::light::V2_0::implementation::Light;
const static std::string kLcdBacklightPath = "/sys/class/leds/lcd-backlight/brightness";
const static std::string kLcdMaxBacklightPath = "/sys/class/leds/lcd-backlight/max_brightness";
const static std::string kChargingLedPath = "/sys/class/leds/charging/brightness";
const static std::string kBlinkingLedPath = "/sys/class/leds/rgb/control";
int main() {
uint32_t lcdMaxBrightness = 255;
std::ofstream lcdBacklight(kLcdBacklightPath);
if (!lcdBacklight) {
LOG(ERROR) << "Failed to open " << kLcdBacklightPath << ", error=" << errno
<< " (" << strerror(errno) << ")";
return -errno;
}
std::ifstream lcdMaxBacklight(kLcdMaxBacklightPath);
if (!lcdMaxBacklight) {
LOG(ERROR) << "Failed to open " << kLcdMaxBacklightPath << ", error=" << errno
<< " (" << strerror(errno) << ")";
return -errno;
} else {
lcdMaxBacklight >> lcdMaxBrightness;
}
std::ofstream blinkingLed(kBlinkingLedPath);
std::ofstream chargingLed(kChargingLedPath);
if (!chargingLed && !blinkingLed) {
LOG(ERROR) << "Failed to open notification or charging LED!";
return -errno;
}
android::sp<ILight> service = new Light(
{std::move(lcdBacklight), lcdMaxBrightness},
std::move(chargingLed), std::move(blinkingLed));
configureRpcThreadpool(1, true);
android::status_t status = service->registerAsService();
if (status != android::OK) {
LOG(ERROR) << "Cannot register Light HAL service";
return 1;
}
LOG(INFO) << "Light HAL Ready.";
joinRpcThreadpool();
// Under normal cases, execution will not reach this line.
LOG(ERROR) << "Light HAL failed to join thread pool.";
return 1;
}
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