| /*******************************************************
*filename:serial_rev.c
*Description:receivedata from Serial_Port
*Date:
*******************************************************/
#include <stdio.h>
#include <string.h>
#include <malloc.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/msg.h>
#include <termios.h>
#include <sys/time.h>
#include <stdlib.h>
#include <unistd.h>
#include <termios.h>
#include <sys/ioctl.h>
#include "uart_4g_ttyusb2.h"
//#include <pthread.h>
/*********************************************************/
#define CMD_LEN 7
//#define MAX_MSG_BUFF_SIZE 128 /*定义缓冲区最大宽度*/
static int g_fg_4g = -1;
static char frame_tail[] = {0xFF,0xFC,0xFF,0xFF};
//#define TTYS_DEVNAME "/dev/ttyAMA1" /*需要把寄存器配置uart2的复用口为uart*/
//#define TTYS_DEVNAME "/dev/ttyAMA2" /*需要把寄存器配置uart2的复用口为uart*/
//#define TTYS_DEVNAME "/dev/ttyS1"
//#define TTYS_DEVNAME "/dev/ttyUSB0"
#define TTYS_USB2_DEVNAME "/dev/ttyAMA1"
int uart_4gserial_dev_init()
{
struct termios opt;
if(0 < g_fg_4g)
{
printf("%s is already opened!",TTYS_USB2_DEVNAME);
}
if(0 > g_fg_4g)
{
g_fg_4g = open(TTYS_USB2_DEVNAME, O_RDWR|O_NOCTTY); /*读写方式打开串口*/
}
if(0 > g_fg_4g) /*打开失败*/
{
printf("open %s Error",TTYS_USB2_DEVNAME);
return -1;
}
DBG_PRT(DBG_OFF," FD=%d\\n",g_fg_4g);
tcgetattr(g_fg_4g,&opt);
DBG_PRT(DBG_OFF," A cflg=%2X oflg=%2X lflg=%2X iflg=%2X\\n",
opt.c_cflag,opt.c_oflag,opt.c_lflag,opt.c_iflag);
cfmakeraw(&opt);
DBG_PRT(DBG_OFF," B cflg=%2X oflg=%2X lflg=%2X iflg=%2X\\n",
opt.c_cflag,opt.c_oflag,opt.c_lflag,opt.c_iflag);
cfsetispeed(&opt,B9600); /*波特率设置为B115200bps*/
cfsetospeed(&opt,B9600);
//cfsetispeed(&opt,B115200); /*波特率设置为B115200bps*/
//cfsetospeed(&opt,B115200);
opt.c_iflag = 0;
opt.c_oflag = 0;
opt.c_lflag = 0; //non ICANON
opt.c_cflag &= ~PARENB;
opt.c_cflag |= CSTOPB;//停止位2位
opt.c_cflag &= ~CSIZE;
opt.c_cflag |= CS8;
fcntl(g_fg_4g,F_SETFL,0);
opt.c_cc[VTIME] = 2;
opt.c_cc[VMIN] = 128;
tcsetattr(g_fg_4g,TCSANOW,&opt);
tcflush(g_fg_4g, TCIFLUSH);
tcgetattr(g_fg_4g,&opt);
DBG_PRT(DBG_OFF," C cflg=%2X oflg=%2X lflg=%2X iflg=%2X\\n",
opt.c_cflag,opt.c_oflag,opt.c_lflag,opt.c_iflag);
DBG_PRT(DBG_OFF," FD=%d return 0\\n",g_fg_4g);
DBG_PRT(DBG_OFF,"#####\\n");
return 0;
}
int uart_4gserial_dev_close()
{
int ret = 0;
ret = close(g_fg_4g);
if(ret == -1)
DBG_PRT(DBG_OFF,"Closethe Device failur");
return 0;
}
#define PRI_LEN 8
void buf_print(char* str,unsigned char *buf, int len)
{
int i = 0;
int j = 0;
if(NULL == buf)
{
return;
}
fprintf(stderr,"\\n******** print %s begin len=%d********\\n",str,len);
while (i < len)
{
if ((len - i) < PRI_LEN )
{
for (; i < len; i++)
{
fprintf(stderr,"0x%02X ",buf[i]);
}
}
else
{
for (j = 0; j < PRI_LEN; j++)
{
fprintf(stderr,"0x%02X ", buf[i + j]);
}
i += 8;
}
fprintf(stderr,"\\n");
}
fprintf(stderr,"******** print %s end ********\\n",str);
return;
}
int uart_4guart_cmd_send(unsigned char *cmd, int len)
{
int write_len = -1;
if(len > SERIAL_OUT_BUFF_SIZE - 1 || 0 > g_fg_4g)
{
return -1;
}
//buf_print("uart_cmd_send buf",cmd,len);
write_len = write(g_fg_4g, cmd, len);
//write_len = len;
if(write_len != len)
{
DBG_PRT(DBG_OFF,"write Device failureá");
return -1;
}
return 0;
}
int uart_4guart_at_read(unsigned char *tmpbuff, int len)
{
int ret,rcv_len,n = 0;
rcv_len = read(g_fg_4g, tmpbuff, len);
if(rcv_len == -1)
{
DBG_PRT(DBG_ON," read err\\n");
perror("read");
return -1;
}
return rcv_len;
}
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