lsiosr.h

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/*******************************************************
@company: Copyright (C) 2018, Leishen Intelligent System
@product: serial
@filename: lsiosr.h
@brief:
@version:       date:       author:     comments:
@v1.0           18-8-21     fu          new
*******************************************************/
#ifndef LSIOSR_H
#define LSIOSR_H

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <fstream>
#include <iostream>
//波特率
#define     BAUD_2400       2400
#define     BAUD_4800       4800
#define     BAUD_9600       9600
#define     BAUD_57600          57600
#define     BAUD_115200     115200
#define           BAUD_230400             230400
#define     BAUD_460800     460800

//奇偶校验位
#define     PARITY_ODD          'O' //奇数
#define     PARITY_EVEN         'E' //偶数
#define     PARITY_NONE         'N' //无奇偶校验位
//停止位
#define     STOP_BIT_1          1
#define     STOP_BIT_2          2
//数据位
#define     DATA_BIT_7          7
#define     DATA_BIT_8          8

namespace ls
{
class LSIOSR{
public:
  static LSIOSR* instance(std::string name, int speed, int fd = 0);

  ~LSIOSR();

  /* 从串口中读取数据 */
  int read(char *buffer, int length, int timeout = 30);

  /* 向串口传数据 */
  int send(const char* buffer, int length, int timeout = 30);

  /* 串口初始化 */
  int init();

  int close();

  /* 获取串口号 */
  std::string getPort();

  /* 设置串口号 */
  int setPort(std::string name);

private:
  LSIOSR(std::string name, int speed, int fd);

  int waitWritable(int millis);
  int waitReadable(int millis);

  /* 串口配置的函数 */
  int setOpt(int nBits, uint8_t nEvent, int nStop);

  std::string port_;

  int baud_rate_;

  int fd_;
};
}
#endif