int serial_port_open(struct SerialPort *me, const char *device,
void(*term_conf_callback)(struct termios *, speed_t *))
{
speed_t speed;
if ((me->fd = open(device, O_RDWR | O_NONBLOCK)) < 0) {
TRACE(TRACE_ERROR, "%s, open failed: %s (%d)\n", device, strerror(errno), errno);
return -1;
}
if (tcgetattr(me->fd, &me->orig_termios) < 0) {
TRACE(TRACE_ERROR, "%s, get term settings failed: %s (%d)\n", device, strerror(errno), errno);
close(me->fd);
return -1;
}
me->cur_termios = me->orig_termios;
term_conf_callback(&me->cur_termios, &speed);
if (cfsetispeed(&me->cur_termios, speed)) {
TRACE(TRACE_ERROR, "%s, set term speed failed: %s (%d)\n", device, strerror(errno), errno);
close(me->fd);
return -1;
}
if (tcsetattr(me->fd, TCSADRAIN, &me->cur_termios)) {
TRACE(TRACE_ERROR, "%s, set term attr failed: %s (%d)\n", device, strerror(errno), errno);
close(me->fd);
return -1;
}
serial_port_flush(me);
return 0;
}
int serial_port_open_raw(struct SerialPort* me, const char* device, speed_t speed) {
if ((me->fd = open(device, O_RDWR | O_NONBLOCK | O_NOCTTY)) < 0) {
TRACE(TRACE_ERROR,"%s, open failed: %s (%d)\n", device, strerror(errno), errno);
return -1;
}
if (tcgetattr(me->fd, &me->orig_termios) < 0) {
TRACE(TRACE_ERROR,"%s, get term settings failed: %s (%d)\n", device, strerror(errno), errno);
close(me->fd);
return -1;
}
me->cur_termios = me->orig_termios;
/* input modes */
me->cur_termios.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|INPCK|ISTRIP|INLCR|IGNCR
|ICRNL |IUCLC|IXON|IXANY|IXOFF|IMAXBEL);
me->cur_termios.c_iflag |= IGNPAR;
/* control modes*/
me->cur_termios.c_cflag &= ~(CSIZE|PARENB|CRTSCTS|PARODD|HUPCL|CSTOPB);
me->cur_termios.c_cflag |= CREAD|CS8|CLOCAL;
/* local modes */
me->cur_termios.c_lflag &= ~(ISIG|ICANON|IEXTEN|ECHO|FLUSHO|PENDIN);
me->cur_termios.c_lflag |= NOFLSH;
if (cfsetispeed(&me->cur_termios, speed)) {
TRACE(TRACE_ERROR,"%s, set term speed failed: %s (%d)\n", device, strerror(errno), errno);
close(me->fd);
return -1;
}
if (tcsetattr(me->fd, TCSADRAIN, &me->cur_termios)) {
TRACE(TRACE_ERROR,"%s, set term attr failed: %s (%d)\n", device, strerror(errno), errno);
close(me->fd);
return -1;
}
serial_port_flush(me);
return 0;
}