serchan.cxx

来自「安装 H323需要的pwlib库」· CXX 代码 · 共 795 行 · 第 1/2 页

      baud = B19200;	
      break;
#endif
#ifdef B38400
    case 38400:
      baud = B38400;	
      break;
#endif
#ifdef B57600
    case 57600:
      baud = B57600;
      break;
#endif
#ifdef B115200
    case 115200:
      baud = B115200;
      break;
#endif
#ifdef B230400
    case 230400:
      baud = B230400;
      break;
#endif
    default:
      baud = -1;
  };
 
  if (baud == -1) {
    errno = EINVAL;
    ConvertOSError(-1);
    return FALSE;
  }

  // save new baud rate
  baudRate = newBaudRate;

#if defined(P_FREEBSD) || defined(P_OPENBSD) || defined (P_NETBSD) || defined(P_MACOSX) || defined(P_MACOS)
  // The BSD way
  Termio.c_ispeed = baud; 
  Termio.c_ospeed = baud;
#else
  // The Linux way
  Termio.c_cflag &= ~CBAUD;
  Termio.c_cflag |= baud;
#endif

  if (os_handle < 0)
    return TRUE;

  // initialise the port
  return ConvertOSError(TCSETATTR(os_handle, &Termio));

#endif // P_VXWORKS
}


BOOL PSerialChannel::SetDataBits(BYTE data)
{
  if (data == dataBits)
    return TRUE;

#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
  return FALSE;
#else

  int flags;

  switch (data) {
#ifdef CS5
    case 5:
      flags = CS5;
      break;
#endif
#ifdef CS6
    case 6:
      flags = CS6;
      break;
#endif
#ifdef CS7
    case 7:
      flags = CS7;
      break;
#endif
#ifdef CS8
    case 8:
    case 0:  // default 
      flags = CS8;
      break;
#endif
    default:
      flags = -1;
      break;
  }

  if (flags == 0) {
    errno = EINVAL;
    ConvertOSError(-1);
    return FALSE;
  }

  // set the new number of data bits
  dataBits = data;
  Termio.c_cflag &= ~CSIZE;
  Termio.c_cflag |= flags;

  if (os_handle < 0)
    return TRUE;

  return ConvertOSError(TCSETATTR(os_handle, &Termio));

#endif // P_VXWORKS
}

BOOL PSerialChannel::SetParity(Parity parity)
{
  if (parity == parityBits)
    return TRUE;

#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
  return FALSE;
#else

  int flags;

  switch (parity) {
    case OddParity:
      flags = PARODD | PARENB;
      break;
    case EvenParity:
      flags = PARENB;
    case NoParity:
    case DefaultParity:
      flags = IGNPAR;
      break;

    case MarkParity:
    case SpaceParity:
    default:
      flags = -1;
  }

  if (flags < 0) {
    errno = EINVAL;
    ConvertOSError(-1);
    return FALSE;
  }

  if (os_handle < 0)
    return TRUE;

  // set the new parity
  parityBits = parity;
  Termio.c_cflag &= ~(PARENB|PARODD);
  Termio.c_cflag |= flags;

  return ConvertOSError(TCSETATTR(os_handle, &Termio));

#endif // P_VXWORKS
}

BOOL PSerialChannel::SetStopBits(BYTE stop)
{
  if (stop == stopBits)
    return TRUE;

#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
  return FALSE;
#else

  int flags;

  switch (stop) {
    case 2:
      flags = CSTOPB;
      break;
    default:
    case 1:
      flags = 0;
      break;
  }

  if (flags < 0) {
    errno = EINVAL;
    ConvertOSError(-1);
    return FALSE;
  }

  if (os_handle < 0)
    return TRUE;

  // set the new number of stop bits
  stopBits = stop;
  Termio.c_cflag &= ~CSTOPB;
  Termio.c_cflag |= flags;

  return ConvertOSError(TCSETATTR(os_handle, &Termio));

#endif // P_VXWORKS
}

DWORD PSerialChannel::GetSpeed() const
{
  return baudRate;
}

BYTE PSerialChannel::GetStopBits() const
{
  return stopBits;
}

BYTE PSerialChannel::GetDataBits() const
{
  return dataBits;
}

PSerialChannel::Parity PSerialChannel::GetParity() const
{
  return parityBits;
}

BOOL PSerialChannel::SetInputFlowControl(FlowControl)
{
  return TRUE;
}


PSerialChannel::FlowControl PSerialChannel::GetInputFlowControl() const
{
  return NoFlowControl;
}


BOOL PSerialChannel::SetOutputFlowControl(FlowControl)
{
  return TRUE;
}


PSerialChannel::FlowControl PSerialChannel::GetOutputFlowControl() const
{
  return NoFlowControl;
}


void PSerialChannel::SetDTR(BOOL mode)
{
#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
#else

  int flags = 0;
  ioctl(os_handle,TIOCMGET,&flags);	// get the bits
  flags &= ~TIOCM_DTR;
  if ( mode == TRUE )
  	flags |= TIOCM_DTR;
  ioctl(os_handle,TIOCMSET,&flags);	// set back

  /* 
  ALTERNATE IMPLEMENTATION?
  Uses "Local Mode" bits?
  if ( mode TRUE )
  	ioctl(os_handle, TIOCSDTR, 0);
  else 
    ioctl(os_handle, TIOCCDTR, 0);
  */

#endif // P_VXWORKS
}


void PSerialChannel::SetRTS(BOOL mode)
{
#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
#else

  int flags = 0;
  ioctl(os_handle,TIOCMGET,&flags);	// get the bits
  flags &= ~TIOCM_RTS;
  if ( mode == TRUE )
  	flags |= TIOCM_RTS;
  ioctl(os_handle,TIOCMSET,&flags);	// set back

#endif // P_VXWORKS
}


void PSerialChannel::SetBreak(BOOL mode)
{
#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
#else

  if (mode)
    ioctl(os_handle, TIOCSBRK, 0);
  else 
    ioctl(os_handle, TIOCCBRK, 0);

#endif // P_VXWORKS
}


BOOL PSerialChannel::GetCTS()
{
#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
  return FALSE;
#else

  int flags = 0;
  ioctl(os_handle,TIOCMGET,&flags);	// get the bits
  return (flags&TIOCM_CTS)?TRUE:FALSE;

#endif // P_VXWORKS
}


BOOL PSerialChannel::GetDSR()
{
#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
  return FALSE;
#else

  int flags = 0;

  ioctl(os_handle,TIOCMGET,&flags);	// get the bits
  return (flags&TIOCM_DSR)?TRUE:FALSE;

#endif // P_VXWORKS
}


BOOL PSerialChannel::GetDCD()
{
#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
  return FALSE;
#else

  int flags = 0;

  ioctl(os_handle,TIOCMGET,&flags);	// get the bits
  return (flags&TIOCM_CD)?TRUE:FALSE;

#endif // P_VXWORKS
}


BOOL PSerialChannel::GetRing()
{
#if defined(P_VXWORKS) || defined (__BEOS__)
  PAssertAlways(PUnimplementedFunction);
  return FALSE;
#else

  int flags = 0;
  
  ioctl(os_handle,TIOCMGET,&flags);	// get the bits
  return (flags&TIOCM_RNG)?TRUE:FALSE;

#endif // P_VXWORKS
}


PStringList PSerialChannel::GetPortNames()
{
  PStringList ports;

  char * env = getenv(PORTLISTENV);
  if (env != NULL) {
    PString str(env);
    PStringArray tokens = str.Tokenise(" ,\t", FALSE);
    PINDEX i;
    for (i = 0; i < tokens.GetSize(); i++) 
      ports.AppendString(tokens[i]);
  } else {
#if defined(__sun) && defined (__sparc)
    ports.AppendString(PString("ttya"));
    ports.AppendString(PString("ttyb"));
#else
    ports.AppendString(PString("ttyS0"));
    ports.AppendString(PString("ttyS1"));
    ports.AppendString(PString("ttyS2"));
    ports.AppendString(PString("ttyS3"));
#endif
  }

  return ports;
}


// End of File ///////////////////////////////////////////////////////////////