peripheralmanager/daemon/uart_driver_sysfs.h

/*
 * 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_DRIVER_SYSFS_H_
#define SYSTEM_PERIPHERALMANAGER_DAEMON_UART_DRIVER_SYSFS_H_

#include <stdint.h>

#include <base/macros.h>

#include "char_device.h"
#include "uart_driver.h"

namespace android {

class UartDriverSysfs : public UartDriverInterface {
 public:
  explicit UartDriverSysfs(CharDeviceFactory* factory);
  ~UartDriverSysfs();

  static std::string Compat() { return "UARTSYSFS"; }

  bool Init(const std::string& name) override;

  int SetBaudrate(uint32_t baudrate) override;

  int Write(const std::vector<uint8_t>& data, uint32_t* bytes_written) override;

  int Read(std::vector<uint8_t>* data,
           uint32_t size,
           uint32_t* bytes_read) override;

 private:
  int fd_;
  std::string path_;

  CharDeviceFactory* char_device_factory_;
  std::unique_ptr<CharDeviceInterface> char_interface_;

  DISALLOW_COPY_AND_ASSIGN(UartDriverSysfs);
};

}  // namespace android

#endif  // SYSTEM_PERIPHERALMANAGER_DAEMON_UART_DRIVER_SYSFS_H_