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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_UART_MANAGER_H_
#define SYSTEM_PERIPHERALMANAGER_DAEMON_UART_MANAGER_H_
#include <stdint.h>
#include <map>
#include <memory>
#include <string>
#include <vector>
#include <android-base/unique_fd.h>
#include <base/macros.h>
#include "pin_mux_manager.h"
#include "uart_driver.h"
namespace android {
struct UartSysfs {
std::string name;
std::string path;
std::string mux;
std::unique_ptr<UartDriverInterface> driver_;
};
class UartDevice {
public:
UartDevice(UartSysfs* uart_device) : uart_device_(uart_device) {}
~UartDevice() { uart_device_->driver_.reset(); }
int SetBaudrate(uint32_t baudrate) {
return uart_device_->driver_->SetBaudrate(baudrate);
}
int Write(const std::vector<uint8_t>& data, uint32_t* bytes_written) {
return uart_device_->driver_->Write(data, bytes_written);
}
int Read(std::vector<uint8_t>* data, uint32_t size, uint32_t* bytes_read) {
return uart_device_->driver_->Read(data, size, bytes_read);
}
private:
UartSysfs* uart_device_;
};
class UartManager {
public:
~UartManager();
// Get the singleton.
static UartManager* GetManager();
static void ResetManager();
// Used by the BSP to tell PMan of an sysfs uart_device.
bool RegisterUartDevice(const std::string& name, const std::string& path);
bool SetPinMux(const std::string& name, const std::string& mux);
std::vector<std::string> GetDevicesList();
bool HasUartDevice(const std::string& name);
bool RegisterDriver(std::unique_ptr<UartDriverInfoBase> driver_info);
std::unique_ptr<UartDevice> OpenUartDevice(const std::string& name);
private:
UartManager();
std::map<std::string, std::unique_ptr<UartDriverInfoBase>> driver_infos_;
std::map<std::string, UartSysfs> uart_devices_;
DISALLOW_COPY_AND_ASSIGN(UartManager);
};
} // namespace android
#endif // SYSTEM_PERIPHERALMANAGER_DAEMON_UART_MANAGER_H_
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