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/*
* Copyright (C) 2016 The Android Open Source 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.
*/
#ifndef SYSTEM_PERIPHERALMANAGER_DAEMON_LED_MANAGER_H_
#define SYSTEM_PERIPHERALMANAGER_DAEMON_LED_MANAGER_H_
#include <stdint.h>
#include <map>
#include <memory>
#include <string>
#include <vector>
#include <base/macros.h>
#include "led_driver.h"
#include "pin_mux_manager.h"
namespace android {
struct LedSysfs {
std::string name;
std::string mux;
std::unique_ptr<LedDriverInterface> driver_;
};
class Led {
public:
Led(LedSysfs* led) : led_(led) {}
~Led() {
if (!led_->mux.empty()) {
// TODO(leecam): Set up pin muxing
}
led_->driver_.reset();
}
bool SetBrightness(uint32_t val) { return led_->driver_->SetBrightness(val); }
bool GetBrightness(uint32_t* val) {
return led_->driver_->GetBrightness(val);
}
bool GetMaxBrightness(uint32_t* val) {
return led_->driver_->GetMaxBrightness(val);
}
private:
LedSysfs* led_;
};
class LedManager {
public:
friend class LedManagerTest;
~LedManager();
// Get the singleton.
static LedManager* GetLedManager();
static void ResetLedManager();
// Used by the BSP to tell PMan of an sysfs led.
bool RegisterLedSysfs(const std::string& name, const std::string& led_name);
bool SetPinMux(const std::string& name, const std::string& mux);
std::vector<std::string> GetLeds();
bool HasLed(const std::string& name);
bool RegisterDriver(std::unique_ptr<LedDriverInfoBase> driver_info);
std::unique_ptr<Led> OpenLed(const std::string& name);
private:
LedManager();
std::map<std::string, std::unique_ptr<LedDriverInfoBase>> driver_infos_;
std::map<std::string, LedSysfs> leds_;
DISALLOW_COPY_AND_ASSIGN(LedManager);
};
} // namespace android
#endif // SYSTEM_PERIPHERALMANAGER_DAEMON_LED_MANAGER_H_
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