2432fd6916
[Adapted from libra for griffin] Signed-off-by: Erfan Abdi <erfangplus@gmail.com> Signed-off-by: therootlord <igor_cestari@hotmail.com>
135 lines
3.2 KiB
C++
135 lines
3.2 KiB
C++
/*
|
|
* Copyright (C) 2017 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 "LightService"
|
|
|
|
#include <log/log.h>
|
|
|
|
#include "Light.h"
|
|
|
|
#include <fstream>
|
|
|
|
namespace android {
|
|
namespace hardware {
|
|
namespace light {
|
|
namespace V2_0 {
|
|
namespace implementation {
|
|
|
|
#define LED_LIGHT_OFF 0
|
|
#define LED_LIGHT_BLINK_FAST 1
|
|
#define LED_LIGHT_BLINK_SLOW 2
|
|
#define LED_LIGHT_SOLID_ON 3
|
|
|
|
#define LEDS "/sys/class/leds/"
|
|
|
|
#define LCD_LED LEDS "lcd-backlight/"
|
|
#define CHARGING_LED LEDS "charging/"
|
|
|
|
#define BRIGHTNESS "brightness"
|
|
|
|
|
|
/*
|
|
* Write value to path and close file.
|
|
*/
|
|
static void set(std::string path, std::string value) {
|
|
std::ofstream file(path);
|
|
file << value;
|
|
}
|
|
|
|
static void set(std::string path, int value) {
|
|
set(path, std::to_string(value));
|
|
}
|
|
|
|
static uint32_t is_lit(const LightState& state) {
|
|
return state.color & 0x00ffffff;
|
|
}
|
|
|
|
static uint32_t rgbToBrightness(const LightState& state) {
|
|
uint32_t color = state.color & 0x00ffffff;
|
|
return ((77 * ((color >> 16) & 0xff)) + (150 * ((color >> 8) & 0xff)) +
|
|
(29 * (color & 0xff))) >> 8;
|
|
}
|
|
|
|
static void handleBacklight(const LightState& state) {
|
|
uint32_t brightness = rgbToBrightness(state);
|
|
set(LCD_LED BRIGHTNESS, brightness);
|
|
}
|
|
|
|
static void handleBattery(const LightState& state) {
|
|
uint32_t Brightness;
|
|
|
|
if (is_lit(state))
|
|
Brightness = LED_LIGHT_SOLID_ON;
|
|
else
|
|
Brightness = LED_LIGHT_OFF;
|
|
|
|
set(CHARGING_LED BRIGHTNESS, Brightness);
|
|
}
|
|
|
|
static void handleNotification(const LightState& state) {
|
|
uint32_t Brightness;
|
|
|
|
if (is_lit(state))
|
|
Brightness = LED_LIGHT_BLINK_SLOW;
|
|
else
|
|
Brightness = LED_LIGHT_OFF;
|
|
|
|
set(CHARGING_LED BRIGHTNESS, Brightness);
|
|
}
|
|
|
|
|
|
static std::map<Type, std::function<void(const LightState&)>> lights = {
|
|
{Type::BACKLIGHT, handleBacklight},
|
|
{Type::BATTERY, handleBattery},
|
|
{Type::NOTIFICATIONS, handleNotification},
|
|
{Type::ATTENTION, handleNotification},
|
|
};
|
|
|
|
Light::Light() {}
|
|
|
|
Return<Status> Light::setLight(Type type, const LightState& state) {
|
|
auto it = lights.find(type);
|
|
|
|
if (it == lights.end()) {
|
|
return Status::LIGHT_NOT_SUPPORTED;
|
|
}
|
|
|
|
/*
|
|
* Lock global mutex until light state is updated.
|
|
*/
|
|
std::lock_guard<std::mutex> lock(globalLock);
|
|
|
|
it->second(state);
|
|
|
|
return Status::SUCCESS;
|
|
}
|
|
|
|
Return<void> Light::getSupportedTypes(getSupportedTypes_cb _hidl_cb) {
|
|
std::vector<Type> types;
|
|
|
|
for (auto const& light : lights) types.push_back(light.first);
|
|
|
|
_hidl_cb(types);
|
|
|
|
return Void();
|
|
}
|
|
|
|
} // namespace implementation
|
|
} // namespace V2_0
|
|
} // namespace light
|
|
} // namespace hardware
|
|
} // namespace android
|