#include "common.h"
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int writeport(int *fd, unsigned char *chars,int len) {
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//printf("*fd = %d\n",getbaud(*fd));
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int n = write(*fd, chars,len);
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if (n < 0) {
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fputs("write failed!\n", stderr);
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printf("\n written %d bytes to port fail:%d\n",len, n);
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return n;
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}
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printf("\n written %d bytes to port \n",n);
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return n;
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}
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int readport(int *fd, unsigned char *result) {
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int iIn=0;
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iIn = read(*fd, result, bufsize);
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if (iIn < 0) {
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if (errno == EAGAIN) {
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printf("SERIAL EAGAIN ERROR\n");
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return 0;
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} else {
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printf("SERIAL read error %d %s\n", errno, strerror(errno));
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return 0;
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}
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}
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//printf("\n read %d bytes from port",iIn);
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/* If we got an expected response trailer, break. */
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if(iIn ==1 && result[0] == 0x00 ) {
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//printf("\n iIn ==1 and 0x00 character \n");
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return 0;
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}
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return iIn;
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}
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int getbaud(int fd) {
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struct termios termAttr;
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int Speed = -1;
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speed_t baudRate;
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tcgetattr(fd, &termAttr);
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/* Get the input speed. */
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baudRate = cfgetispeed(&termAttr);
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switch (baudRate) {
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case B300: Speed = 300; break;
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case B600: Speed = 600; break;
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case B1200: Speed = 1200; break;
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case B1800: Speed = 1800; break;
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case B2400: Speed = 2400; break;
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case B4800: Speed = 4800; break;
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case B9600: Speed = 9600; break;
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case B19200: Speed = 19200; break;
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case B38400: Speed = 38400; break;
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case B57600: Speed = 57600; break;
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case B115200: Speed = 115200; break;
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case B230400: Speed = 230400; break;
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case B460800: Speed = 460800; break;
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case B500000: Speed = 500000; break;
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case B576000: Speed = 576000; break;
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case B921600: Speed = 921600; break;
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case B1000000:Speed = 1000000; break;
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case B1152000:Speed = 1152000; break;
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case B1500000:Speed = 1500000; break;
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case B2000000:Speed = 2000000; break;
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case B2500000:Speed = 2500000; break;
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case B3000000:Speed = 3000000; break;
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case B3500000:Speed = 3500000; break;
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case B4000000:Speed = 4000000; break;
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}
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return Speed;
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}
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int initport(int fd,long baudrate,int flow_ctrl)
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{
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struct termios options;
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memset(&options, 0 , sizeof(options));
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if(ERROR == tcgetattr(fd, &options)) {
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perror("tcgetattr: ");
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return ERROR;
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}
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printf("buadrate:%d\n", baudrate);
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options.c_cflag &= ~CBAUD;
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switch (baudrate) {
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case 300: cfsetispeed(&options,B300);
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cfsetospeed(&options,B300);
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options.c_cflag |= B300;
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break;
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case 600: cfsetispeed(&options,B600);
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cfsetospeed(&options,B600);
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options.c_cflag |= B600;
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break;
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case 1200: cfsetispeed(&options,B1200);
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cfsetospeed(&options,B1200);
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options.c_cflag |= B1200;
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break;
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case 1800: cfsetispeed(&options,B1800);
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cfsetospeed(&options,B1800);
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options.c_cflag |= B1800;
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break;
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case 2400: cfsetispeed(&options,B2400);
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cfsetospeed(&options,B2400);
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options.c_cflag |= B2400;
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break;
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case 4800: cfsetispeed(&options,B4800);
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cfsetospeed(&options,B4800);
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options.c_cflag |= B4800;
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break;
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case 9600:
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default: cfsetispeed(&options,B9600);
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cfsetospeed(&options,B9600);
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options.c_cflag |= B9600;
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break;
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case 19200: cfsetispeed(&options,B19200);
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cfsetospeed(&options,B19200);
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options.c_cflag |= B19200;
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break;
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case 38400: cfsetispeed(&options,B38400);
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cfsetospeed(&options,B38400);
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options.c_cflag |= B38400;
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break;
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case 57600: cfsetispeed(&options,B57600);
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cfsetospeed(&options,B57600);
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options.c_cflag |= B57600 | CBAUDEX;
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break;
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case 115200: cfsetispeed(&options,B115200);
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cfsetospeed(&options,B115200);
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options.c_cflag |= B115200 | CBAUDEX;
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break;
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case 230400: cfsetispeed(&options,B230400);
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cfsetospeed(&options,B230400);
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options.c_cflag |= B230400 | CBAUDEX;
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break;
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case 460800: cfsetispeed(&options,B460800);
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cfsetospeed(&options,B460800);
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options.c_cflag |= B460800 | CBAUDEX;
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break;
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case 500000: cfsetispeed(&options,B500000);
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cfsetospeed(&options,B500000);
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options.c_cflag |= B500000 | CBAUDEX;
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break;
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case 576000: cfsetispeed(&options,B576000);
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cfsetospeed(&options,B576000);
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options.c_cflag |= B576000 | CBAUDEX;
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break;
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case 921600: cfsetispeed(&options,B921600);
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cfsetospeed(&options,B921600);
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options.c_cflag |= B921600 | CBAUDEX;
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break;
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case 1000000: cfsetispeed(&options,B1000000);
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cfsetospeed(&options,B1000000);
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options.c_cflag |= B1000000 | CBAUDEX;
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break;
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case 1152000: cfsetispeed(&options,B1152000);
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cfsetospeed(&options,B1152000);
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options.c_cflag |= B1152000 | CBAUDEX;
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break;
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case 1500000: cfsetispeed(&options,B1500000);
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cfsetospeed(&options,B1500000);
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options.c_cflag |= B1500000 | CBAUDEX;
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break;
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case 2000000: cfsetispeed(&options,B2000000);
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cfsetospeed(&options,B2000000);
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options.c_cflag |= B2000000 | CBAUDEX;
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break;
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case 2500000: cfsetispeed(&options,B2500000);
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cfsetospeed(&options,B2500000);
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options.c_cflag |= B2500000 | CBAUDEX;
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break;
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case 3000000: cfsetispeed(&options,B3000000);
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cfsetospeed(&options,B3000000);
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options.c_cflag |= B3000000 | CBAUDEX;
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break;
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case 3500000: cfsetispeed(&options,B3500000);
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cfsetospeed(&options,B3500000);
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options.c_cflag |= B3500000 | CBAUDEX;
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break;
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case 4000000: cfsetispeed(&options,B4000000);
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cfsetospeed(&options,B4000000);
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options.c_cflag |= B4000000 | CBAUDEX;
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break;
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}
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/* Enable or Disable Hardware flow control. */
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if(!flow_ctrl) {
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options.c_cflag &= ~CRTSCTS;
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printf("\n Flow control disabled \n");
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}
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else {
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options.c_cflag |= CRTSCTS;
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printf("\n Flow control enabled \n");
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}
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/* No Parity, 8N1. */
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options.c_cflag &= ~PARENB; // No parity bit
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options.c_cflag &= ~CSTOPB; // 1 stop bit
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options.c_cflag &= ~CSIZE; // character size 8
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options.c_cflag |= CS8 ;
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/* Hardware Control Options - Set local mode and Enable receiver to receive characters */
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options.c_cflag |= (CLOCAL | CREAD );
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/* Terminal Control options */
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/* - Disable signals. Disable canonical input processing. Disable echo. */
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options.c_lflag &= ~(ICANON | IEXTEN | ECHO | ISIG); /* Line options - Raw input */
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options.c_iflag &= ~(ICRNL | INPCK | ISTRIP | BRKINT | IXON | IXOFF | IXANY);
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/* Output processing - Disable post processing of output. */
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options.c_oflag &= ~OPOST; /* Output options - Raw output */
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/* Control Characters - Min. no. of characters */
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options.c_cc[VMIN] = 0;
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/* Character/Packet timeouts. */
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options.c_cc[VTIME] = 3;
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if(ERROR == tcflush(fd,TCOFLUSH) ) {
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printf("tcflush failed");
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return ERROR;
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}
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if(ERROR == tcsetattr(fd, TCSANOW, &options)) {
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printf("Error: Couldn't configure Serial port " );
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return ERROR;
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}
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/*
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printf("\n\n");
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system("stty -F /dev/ttyS0 -a");
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printf("\n\n");
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*/
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return SUCCESS;
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}
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int serial_openport(long int baudrate) {
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/*int*/ ut.fd = open("/dev/ttyS0", O_RDWR);
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if(ut.fd < 0) {
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printf("open port failed\n");
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return -1;
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}
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fcntl(ut.fd, F_SETFL, 0);
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printf("baudrate:%ld\n",baudrate);
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printf("\n Existing port baud=%d", getbaud(ut.fd));
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tcgetattr(ut.fd, &oldtio);
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initport(ut.fd, baudrate, 0);
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printf("get baudrate :%d \n",getbaud(ut.fd));
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return ut.fd;
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}
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int serial_send_data(int fd,const unsigned char* data) {
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int i,ret;
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printf("\n");
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for(int i = 0;i<strlen(data);i++)
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printf("%d,",data[i]);
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printf("\n");
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fcntl(fd, F_SETFL, 0);
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if(strlen(data) < 8) {
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ret = writeport(&fd,data,strlen(data));
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} else {
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ret = writeport(&fd,data,8);
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}
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//ioctl(fd, TCSBRK, 1);
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/* if(tcdrain(fd) < 0)
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printf("\n tcdrain failure \n");
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sleep(3);
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for(i=0;i<5;i++)
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tcsendbreak(fd,5);*/
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return ret;
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}
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void signalHandler()
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{
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printf("\n Closing device %s\n",UART_DEV_NAME);
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gettimeofday(&ut.end_time,NULL);
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timersub(&ut.end_time,&ut.start_time,&ut.diff_time);
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if(read_flag && tx_rx == 'r') {
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ut.diff_time.tv_sec -= 5;
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printf("\n Time taken %08ld sec, %08ld usec\n\n ",ut.diff_time.tv_sec,ut.diff_time.tv_usec);
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}
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if(tx_rx == 's')
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printf("\n Time taken %08ld sec, %08ld usec\n\n ",ut.diff_time.tv_sec,ut.diff_time.tv_usec);
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close_port();
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}
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void close_port()
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{
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tcsetattr(ut.fd, TCSANOW, &oldtio);
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if(tx_rx == 'r')
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close(fd2);
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else
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close(fd1);
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close(ut.fd);
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exit(1);
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}
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void display_intro()
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{
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printf("\n Use the following format to run the HS-UART TEST PROGRAM\n");
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printf(" ts_uart v1.1\n");
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printf(" For sending data: \n ./ts_uart <tx_rx(s/r)> <file_name> <baudrate> <flow_control(0/1)> <max_delay(0-100)> <random_size(0/1)>\n");
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printf(" tx_rx : send data from file (s) or receive data (r) to put in file\n");
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printf(" file_name : file name to send data from or place data in\n");
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printf(" baudrate : baud rate used for TX/RX\n");
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printf(" flow_control : enables (1) or disables (0) Hardware flow control using RTS/CTS lines\n");
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printf(" max_delay : defines delay in seconds between each data burst when sending. Choose 0 for continuous stream.\n");
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printf(" random_size : enables (1) or disables (0) random size data bursts when sending. Choose 0 for max size.\n");
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printf(" max_delay and random_size are useful for sleep/wakeup over UART testing. ONLY meaningful when sending data\n");
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printf(" Examples:\n");
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printf(" Sending data (no delays)\n");
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printf(" ts_uart s init.rc 1500000 0 0 0 /dev/ttyS0\n");
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printf(" loop back mode:\n");
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printf(" ts_uart m init.rc 1500000 0 0 0 /dev/ttyS0\n");
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printf(" receive, data must be 0x55\n");
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printf(" ts_uart r init.rc 1500000 0 0 0 /dev/ttyS0\n");
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}
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/* return a random value between 0 and max */
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int get_rand_value(int max){
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int value = (int) ((float) rand() / (float) RAND_MAX * max); /* map random size within 0 - max range*/
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return value;
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}
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