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void Posix_QextSerialPort::setBaudRate ( BaudRateType  baudRate  )  [virtual]

Sets the baud rate of the serial port. Note that not all rates are applicable on all platforms. The following table shows translations of the various baud rate constants on Windows(including NT/2000) and POSIX platforms. Speeds marked with an * are speeds that are usable on both Windows and POSIX.

Note:
BAUD76800 may not be supported on all POSIX systems. SGI/IRIX systems do not support BAUD1800.

  RATE          Windows Speed   POSIX Speed
  -----------   -------------   -----------
   BAUD50                 110          50
   BAUD75                 110          75
  *BAUD110                110         110
   BAUD134                110         134.5
   BAUD150                110         150
   BAUD200                110         200
  *BAUD300                300         300
  *BAUD600                600         600
  *BAUD1200              1200        1200
   BAUD1800              1200        1800
  *BAUD2400              2400        2400
  *BAUD4800              4800        4800
  *BAUD9600              9600        9600
   BAUD14400            14400        9600
  *BAUD19200            19200       19200
  *BAUD38400            38400       38400
   BAUD56000            56000       38400
  *BAUD57600            57600       57600
   BAUD76800            57600       76800
  *BAUD115200          115200      115200
   BAUD128000          128000      115200
   BAUD256000          256000      115200

Implements QextSerialBase.

Definition at line 203 of file posix_qextserialport.cpp.

References PortSettings::BaudRate.

Referenced by open().

{
    QMutexLocker lock(mutex);
    if (Settings.BaudRate!=baudRate) {
        switch (baudRate) {
            case BAUD14400:
                Settings.BaudRate=BAUD9600;
                break;

            case BAUD56000:
                Settings.BaudRate=BAUD38400;
                break;

            case BAUD76800:

#ifndef B76800
                Settings.BaudRate=BAUD57600;
#else
                Settings.BaudRate=baudRate;
#endif
                break;

            case BAUD128000:
            case BAUD256000:
                Settings.BaudRate=BAUD115200;
                break;

            default:
                Settings.BaudRate=baudRate;
                break;
        }
    }
    if (isOpen()) {
        switch (baudRate) {

            /*50 baud*/
            case BAUD50:
                TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 50 baud operation.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B50;
#else
                cfsetispeed(&Posix_CommConfig, B50);
                cfsetospeed(&Posix_CommConfig, B50);
#endif
                break;

            /*75 baud*/
            case BAUD75:
                TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 75 baud operation.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B75;
#else
                cfsetispeed(&Posix_CommConfig, B75);
                cfsetospeed(&Posix_CommConfig, B75);
#endif
                break;

            /*110 baud*/
            case BAUD110:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B110;
#else
                cfsetispeed(&Posix_CommConfig, B110);
                cfsetospeed(&Posix_CommConfig, B110);
#endif
                break;

            /*134.5 baud*/
            case BAUD134:
                TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 134.5 baud operation.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B134;
#else
                cfsetispeed(&Posix_CommConfig, B134);
                cfsetospeed(&Posix_CommConfig, B134);
#endif
                break;

            /*150 baud*/
            case BAUD150:
                TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 150 baud operation.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B150;
#else
                cfsetispeed(&Posix_CommConfig, B150);
                cfsetospeed(&Posix_CommConfig, B150);
#endif
                break;

            /*200 baud*/
            case BAUD200:
                TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows does not support 200 baud operation.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B200;
#else
                cfsetispeed(&Posix_CommConfig, B200);
                cfsetospeed(&Posix_CommConfig, B200);
#endif
                break;

            /*300 baud*/
            case BAUD300:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B300;
#else
                cfsetispeed(&Posix_CommConfig, B300);
                cfsetospeed(&Posix_CommConfig, B300);
#endif
                break;

            /*600 baud*/
            case BAUD600:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B600;
#else
                cfsetispeed(&Posix_CommConfig, B600);
                cfsetospeed(&Posix_CommConfig, B600);
#endif
                break;

            /*1200 baud*/
            case BAUD1200:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B1200;
#else
                cfsetispeed(&Posix_CommConfig, B1200);
                cfsetospeed(&Posix_CommConfig, B1200);
#endif
                break;

            /*1800 baud*/
            case BAUD1800:
                TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows and IRIX do not support 1800 baud operation.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B1800;
#else
                cfsetispeed(&Posix_CommConfig, B1800);
                cfsetospeed(&Posix_CommConfig, B1800);
#endif
                break;

            /*2400 baud*/
            case BAUD2400:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B2400;
#else
                cfsetispeed(&Posix_CommConfig, B2400);
                cfsetospeed(&Posix_CommConfig, B2400);
#endif
                break;

            /*4800 baud*/
            case BAUD4800:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B4800;
#else
                cfsetispeed(&Posix_CommConfig, B4800);
                cfsetospeed(&Posix_CommConfig, B4800);
#endif
                break;

            /*9600 baud*/
            case BAUD9600:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B9600;
#else
                cfsetispeed(&Posix_CommConfig, B9600);
                cfsetospeed(&Posix_CommConfig, B9600);
#endif
                break;

            /*14400 baud*/
            case BAUD14400:
                TTY_WARNING("Posix_QextSerialPort: POSIX does not support 14400 baud operation.  Switching to 9600 baud.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B9600;
#else
                cfsetispeed(&Posix_CommConfig, B9600);
                cfsetospeed(&Posix_CommConfig, B9600);
#endif
                break;

            /*19200 baud*/
            case BAUD19200:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B19200;
#else
                cfsetispeed(&Posix_CommConfig, B19200);
                cfsetospeed(&Posix_CommConfig, B19200);
#endif
                break;

            /*38400 baud*/
            case BAUD38400:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B38400;
#else
                cfsetispeed(&Posix_CommConfig, B38400);
                cfsetospeed(&Posix_CommConfig, B38400);
#endif
                break;

            /*56000 baud*/
            case BAUD56000:
                TTY_WARNING("Posix_QextSerialPort: POSIX does not support 56000 baud operation.  Switching to 38400 baud.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B38400;
#else
                cfsetispeed(&Posix_CommConfig, B38400);
                cfsetospeed(&Posix_CommConfig, B38400);
#endif
                break;

            /*57600 baud*/
            case BAUD57600:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B57600;
#else
                cfsetispeed(&Posix_CommConfig, B57600);
                cfsetospeed(&Posix_CommConfig, B57600);
#endif
                break;

            /*76800 baud*/
            case BAUD76800:
                TTY_PORTABILITY_WARNING("Posix_QextSerialPort Portability Warning: Windows and some POSIX systems do not support 76800 baud operation.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);

#ifdef B76800
                Posix_CommConfig.c_cflag|=B76800;
#else
                TTY_WARNING("Posix_QextSerialPort: Posix_QextSerialPort was compiled without 76800 baud support.  Switching to 57600 baud.");
                Posix_CommConfig.c_cflag|=B57600;
#endif //B76800
#else  //CBAUD
#ifdef B76800
                cfsetispeed(&Posix_CommConfig, B76800);
                cfsetospeed(&Posix_CommConfig, B76800);
#else
                TTY_WARNING("Posix_QextSerialPort: Posix_QextSerialPort was compiled without 76800 baud support.  Switching to 57600 baud.");
                cfsetispeed(&Posix_CommConfig, B57600);
                cfsetospeed(&Posix_CommConfig, B57600);
#endif //B76800
#endif //CBAUD
                break;

            /*115200 baud*/
            case BAUD115200:
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B115200;
#else
                cfsetispeed(&Posix_CommConfig, B115200);
                cfsetospeed(&Posix_CommConfig, B115200);
#endif
                break;

            /*128000 baud*/
            case BAUD128000:
                TTY_WARNING("Posix_QextSerialPort: POSIX does not support 128000 baud operation.  Switching to 115200 baud.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B115200;
#else
                cfsetispeed(&Posix_CommConfig, B115200);
                cfsetospeed(&Posix_CommConfig, B115200);
#endif
                break;

            /*256000 baud*/
            case BAUD256000:
                TTY_WARNING("Posix_QextSerialPort: POSIX does not support 256000 baud operation.  Switching to 115200 baud.");
#ifdef CBAUD
                Posix_CommConfig.c_cflag&=(~CBAUD);
                Posix_CommConfig.c_cflag|=B115200;
#else
                cfsetispeed(&Posix_CommConfig, B115200);
                cfsetospeed(&Posix_CommConfig, B115200);
#endif
                break;
        }
        tcsetattr(fd, TCSAFLUSH, &Posix_CommConfig);
    }
}


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