void zgb_terminate(void)
{
zgb_hal_close();
}
int zgb_hal_open( int devIndex, float baudrate , int* fd)
{
// Opening device
// devIndex: Device index
// baudrate: Real baudrate (ex> 115200, 57600, 38400...)
// Return: 0(Failed), 1(Succeed)
struct termios newtio;
struct serial_struct serinfo;
char dev_name[100] = {0, };
sprintf(dev_name, "/dev/ttyUSB%d", devIndex);
strcpy(gDeviceName, dev_name);
memset(&newtio, 0, sizeof(newtio));
zgb_hal_close();
if((gSocket_fd = open(gDeviceName, O_RDWR|O_NOCTTY|O_NONBLOCK)) < 0) {
fprintf(stderr, "device open error: %s\n", dev_name);
goto ZGB_HAL_OPEN_ERROR;
}
newtio.c_cflag = B38400|CS8|CLOCAL|CREAD;
newtio.c_iflag = IGNPAR;
newtio.c_oflag = 0;
newtio.c_lflag = 0;
newtio.c_cc[VTIME] = 0; // time-out 값 (TIME * 0.1초) 0 : disable
newtio.c_cc[VMIN] = 0; // MIN 은 read 가 return 되기 위한 최소 문자 개수
tcflush(gSocket_fd, TCIFLUSH);
tcsetattr(gSocket_fd, TCSANOW, &newtio);
if(gSocket_fd == -1)
return 0;
if(ioctl(gSocket_fd, TIOCGSERIAL, &serinfo) < 0) {
fprintf(stderr, "Cannot get serial info\n");
return 0;
}
serinfo.flags &= ~ASYNC_SPD_MASK;
serinfo.flags |= ASYNC_SPD_CUST;
serinfo.custom_divisor = serinfo.baud_base / baudrate;
if(ioctl(gSocket_fd, TIOCSSERIAL, &serinfo) < 0) {
fprintf(stderr, "Cannot set serial info\n");
return 0;
}
zgb_hal_close();
gfByteTransTime = (float)((1000.0f / baudrate) * 12.0f);
strcpy(gDeviceName, dev_name);
memset(&newtio, 0, sizeof(newtio));
zgb_hal_close();
if((gSocket_fd = open(gDeviceName, O_RDWR|O_NOCTTY|O_NONBLOCK)) < 0) {
fprintf(stderr, "device open error: %s\n", dev_name);
goto ZGB_HAL_OPEN_ERROR;
}
newtio.c_cflag = B38400|CS8|CLOCAL|CREAD;
newtio.c_iflag = IGNPAR;
newtio.c_oflag = 0;
newtio.c_lflag = 0;
newtio.c_cc[VTIME] = 0; // time-out 값 (TIME * 0.1초) 0 : disable
newtio.c_cc[VMIN] = 0; // MIN 은 read 가 return 되기 위한 최소 문자 개수
tcflush(gSocket_fd, TCIFLUSH);
tcsetattr(gSocket_fd, TCSANOW, &newtio);
*fd = gSocket_fd;
return 1;
ZGB_HAL_OPEN_ERROR:
zgb_hal_close();
return 0;
}