www.pudn.com > qserial.zip > win_qextserialport.cpp
/*! \class Win_QextSerialPort \version 0.70 (pre-alpha) \author Wayne Roth A cross-platform serial port class. This class encapsulates the Windows portion of QextSerialPort. The user will be notified of errors and possible portability conflicts at run-time by default - this behavior can be turned off by defining _TTY_NOWARN_ (to turn off all warnings) or _TTY_NOWARN_PORT_ (to turn off portability warnings) in the project. Note that defining _TTY_NOWARN_ also defines _TTY_NOWARN_PORT_. \note On Windows NT/2000/XP this class uses Win32 serial port functions by default. The user may select POSIX behavior under NT, 2000, or XP ONLY by defining _TTY_POSIX_ in the project. I can make no guarantees as to the quality of POSIX support under NT/2000 however. */ #include#include "win_qextserialport.h" /*! \fn Win_QextSerialPort::Win_QextSerialPort() Default constructor. Note that the name of the device used by a Win_QextSerialPort constructed with this constructor will be determined by #defined constants, or lack thereof - the default behavior is the same as _TTY_LINUX_. Possible naming conventions and their associated constants are: \verbatim Constant Used By Naming Convention ---------- ------------- ------------------------ _TTY_WIN_ Windows COM1, COM2 _TTY_IRIX_ SGI/IRIX /dev/ttyf1, /dev/ttyf2 _TTY_HPUX_ HP-UX /dev/tty1p0, /dev/tty2p0 _TTY_SUN_ SunOS/Solaris /dev/ttya, /dev/ttyb _TTY_DIGITAL_ Digital UNIX /dev/tty01, /dev/tty02 _TTY_LINUX_ Linux /dev/ttyS0, /dev/ttyS1 Linux /dev/ttyS0, /dev/ttyS1 \endverbatim This constructor associates the object with the first port on the system, e.g. COM1 for Windows platforms. See the other constructor if you need a port other than the first. */ Win_QextSerialPort::Win_QextSerialPort():QextSerialBase() {} /*!Win_QextSerialPort::Win_QextSerialPort(const Win_QextSerialPort&) Copy constructor. */ Win_QextSerialPort::Win_QextSerialPort(const Win_QextSerialPort& s):QextSerialBase(s.portName) { portOpen=s.portOpen; lastErr=s.lastErr; memcpy(portName, s.portName, sizeof(portName)); Settings.FlowControl=s.Settings.FlowControl; Settings.Parity=s.Settings.Parity; Settings.DataBits=s.Settings.DataBits; Settings.StopBits=s.Settings.StopBits; Settings.BaudRate=s.Settings.BaudRate; Win_Handle=s.Win_Handle; memcpy(&Win_CommConfig, &s.Win_CommConfig, sizeof(COMMCONFIG)); memcpy(&Win_CommTimeouts, &s.Win_CommTimeouts, sizeof(COMMTIMEOUTS)); } /*! \fn Win_QextSerialPort::Win_QextSerialPort(const char* devName) Constructs a serial port attached to the port specified by devName. devName is the name of the device, which is windowsystem-specific, e.g."COM2" or "/dev/ttyS0". */ Win_QextSerialPort::Win_QextSerialPort(const char* name):QextSerialBase(name) { setTimeout(0, 500); } /*! \fn Win_QextSerialPort::Win_QextSerialPort(const PortSettings& settings) Constructs a port with default name and specified settings. */ Win_QextSerialPort::Win_QextSerialPort(const PortSettings& settings) { construct(); setBaudRate(settings.BaudRate); setDataBits(settings.DataBits); setStopBits(settings.StopBits); setParity(settings.Parity); setFlowControl(settings.FlowControl); setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec); } /*! \fn Win_QextSerialPort::Win_QextSerialPort(const char* name, const PortSettings& settings) Constructs a port with specified name and settings. */ Win_QextSerialPort::Win_QextSerialPort(const char* name, const PortSettings& settings) { construct(); setName(name); setBaudRate(settings.BaudRate); setDataBits(settings.DataBits); setStopBits(settings.StopBits); setParity(settings.Parity); setFlowControl(settings.FlowControl); setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec); } /*! \fn Win_QextSerialPort::~Win_QextSerialPort() Standard destructor. */ Win_QextSerialPort::~Win_QextSerialPort() { if (portOpen) { close(); } } /*! \fn Win_QextSerialPort& operator=(const Win_QextSerialPort& s) overrides the = operator */ Win_QextSerialPort& Win_QextSerialPort::operator=(const Win_QextSerialPort& s) { portOpen=s.isOpen(); lastErr=s.lastErr; memcpy(portName, s.portName, sizeof(portName)); Settings.FlowControl=s.Settings.FlowControl; Settings.Parity=s.Settings.Parity; Settings.DataBits=s.Settings.DataBits; Settings.StopBits=s.Settings.StopBits; Settings.BaudRate=s.Settings.BaudRate; Win_Handle=s.Win_Handle; memcpy(&Win_CommConfig, &s.Win_CommConfig, sizeof(COMMCONFIG)); memcpy(&Win_CommTimeouts, &s.Win_CommTimeouts, sizeof(COMMTIMEOUTS)); return *this; } /*! \fn Win_QextSerialPort::construct(void) Common constructor function, called by all versions of Win_QextSerialPort::Win_QextSerialPort(). Sets up default port settings (115200 8N1 Hardware flow control where supported, otherwise no flow control, and 500 ms timeout). */ void Win_QextSerialPort::construct(void) { QextSerialBase::construct(); setBaudRate(BAUD115200); setDataBits(DATA_8); setStopBits(STOP_1); setParity(PAR_NONE); setFlowControl(FLOW_HARDWARE); Win_Handle=INVALID_HANDLE_VALUE; } /*! \fn bool Win_QextSerialPort::open(int) Opens a serial port. Note that this function does not specify which device to open. If you need to open a device by name, see Win_QextSerialPort::open(const char*). This function has no effect if the port associated with the class is already open. The port is also configured to the current settings, as stored in the Settings structure. */ bool Win_QextSerialPort::open(int) { unsigned long confSize; LOCK_MUTEX(); if (!portOpen) { /*open the port*/ Win_Handle=CreateFileA(portName, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL); if (Win_Handle!=INVALID_HANDLE_VALUE) { portOpen=true; /*configure port settings*/ GetCommConfig(Win_Handle, &Win_CommConfig, &confSize); GetCommState(Win_Handle, &(Win_CommConfig.dcb)); Win_CommConfig.dcb.fBinary=TRUE; Win_CommConfig.dcb.fInX=FALSE; Win_CommConfig.dcb.fOutX=FALSE; Win_CommConfig.dcb.fAbortOnError=FALSE; Win_CommConfig.dcb.fNull=FALSE; /*half second timeout by default*/ setTimeout(Win_CommTimeouts.ReadTotalTimeoutConstant/1000, Win_CommTimeouts.ReadTotalTimeoutConstant%1000); /*set up parameters*/ setBaudRate(Settings.BaudRate); setDataBits(Settings.DataBits); setStopBits(Settings.StopBits); setParity(Settings.Parity); setFlowControl(Settings.FlowControl); } } UNLOCK_MUTEX(); return portOpen; } /*! \fn void Win_QextSerialPort::close() Closes a serial port. This function has no effect if the serial port associated with the class is not currently open. */ void Win_QextSerialPort::close() { LOCK_MUTEX(); CloseHandle(Win_Handle); portOpen=false; UNLOCK_MUTEX(); } /*! \fn void Win_QextSerialPort::flush() Flushes all pending I/O to the serial port. This function has no effect if the serial port associated with the class is not currently open. */ void Win_QextSerialPort::flush() { LOCK_MUTEX(); if (portOpen) { FlushFileBuffers(Win_Handle); } UNLOCK_MUTEX(); } /*! \fn Offset Win_QextSerialPort::size() const This function will return the number of bytes waiting in the receive queue of the serial port. It is included primarily to provide a complete QIODevice interface, and will not record errors in the lastErr member (because it is const). This function is also not thread-safe - in multithreading situations, use Win_QextSerialPort::bytesWaiting() instead. */ Offset Win_QextSerialPort::size() const { int availBytes; COMSTAT Win_ComStat; DWORD Win_ErrorMask=0; ClearCommError(Win_Handle, &Win_ErrorMask, &Win_ComStat); availBytes = Win_ComStat.cbInQue; return (Offset)availBytes; } /*! \fn int Win_QextSerialPort::bytesWaiting() Returns the number of bytes waiting in the port's receive queue. This function will return 0 if the port is not currently open, or -1 on error. Error information can be retrieved by calling Win_QextSerialPort::getLastError(). */ int Win_QextSerialPort::bytesWaiting() { LOCK_MUTEX(); if (portOpen) { DWORD Errors; COMSTAT Status; bool success=ClearCommError(Win_Handle, &Errors, &Status); translateError(Errors); if (success) { lastErr=E_NO_ERROR; UNLOCK_MUTEX(); return Status.cbInQue; } UNLOCK_MUTEX(); return (unsigned int)-1; } UNLOCK_MUTEX(); return 0; } /*! \fn void Win_QextSerialPort::translateError(unsigned long error) Translates a system-specific error code to a QextSerialPort error code. Used internally. */ void Win_QextSerialPort::translateError(unsigned long error) { if (error&CE_BREAK) { lastErr=E_BREAK_CONDITION; } else if (error&CE_FRAME) { lastErr=E_FRAMING_ERROR; } else if (error&CE_IOE) { lastErr=E_IO_ERROR; } else if (error&CE_MODE) { lastErr=E_INVALID_FD; } else if (error&CE_OVERRUN) { lastErr=E_BUFFER_OVERRUN; } else if (error&CE_RXPARITY) { lastErr=E_RECEIVE_PARITY_ERROR; } else if (error&CE_RXOVER) { lastErr=E_RECEIVE_OVERFLOW; } else if (error&CE_TXFULL) { lastErr=E_TRANSMIT_OVERFLOW; } } /*! \fn Q_LONG Win_QextSerialPort::readBlock(char *data, uint maxlen) Reads a block of data from the serial port. This function will read at most maxlen bytes from the serial port and place them in the buffer pointed to by data. Return value is the number of bytes actually read, or -1 on error. This function will have no effect if the serial port associated with the class is not currently open. */ Q_LONG Win_QextSerialPort::readBlock(char *data, #ifdef QTVER_PRE_30 uint maxlen) #else unsigned long maxlen) #endif { LOCK_MUTEX(); int retVal=0; if (portOpen) { COMSTAT Win_ComStat; DWORD Win_BytesRead=0; DWORD Win_ErrorMask=0; ClearCommError(Win_Handle, &Win_ErrorMask, &Win_ComStat); if (Win_ComStat.cbInQue && (!ReadFile(Win_Handle, (void*)data, (DWORD)maxlen, &Win_BytesRead, NULL) || Win_BytesRead==0)) { lastErr=E_READ_FAILED; retVal=-1; } else { retVal=((int)Win_BytesRead); } } UNLOCK_MUTEX(); return retVal; } /*! \fn Q_LONG Win_QextSerialPort::writeBlock(const char *data, uint len) Writes a block of data to the serial port. This function will write len bytes from the buffer pointed to by data to the serial port. Return value is the number of bytes actually written, or -1 on error. This function will have no effect if the serial port associated with the class is not currently open. */ Q_LONG Win_QextSerialPort::writeBlock(const char *data, #ifdef QTVER_PRE_30 uint len) #else unsigned long len) #endif { LOCK_MUTEX(); int retVal=0; if (portOpen) { DWORD Win_BytesWritten; if (!WriteFile(Win_Handle, (void*)data, (DWORD)len, &Win_BytesWritten, NULL)) { lastErr=E_WRITE_FAILED; retVal=-1; } else { retVal=((int)Win_BytesWritten); } } UNLOCK_MUTEX(); flush(); return retVal; } /*! \fn int Win_QextSerialPort::getch() Returns a single character from the serial port, or -1 on error. This function has no effect if the serial port associated with the class is not currently open. */ int Win_QextSerialPort::getch() { LOCK_MUTEX(); int retVal=-1; if (portOpen) { int readChar=-1; COMSTAT Win_ComStat; DWORD Win_BytesRead=0; DWORD Win_ErrorMask=0; ClearCommError(Win_Handle, &Win_ErrorMask, &Win_ComStat); if (Win_ComStat.cbInQue) { if (!ReadFile(Win_Handle, (void*)&readChar, 1, &Win_BytesRead, NULL) || Win_BytesRead==0) { retVal=-1; lastErr=E_READ_FAILED; } else { /*Windows returns (unsigned short)-1 when it means 0xFF for some reason*/ if (readChar==-1) { readChar=0xFF; } retVal=readChar; } } } UNLOCK_MUTEX(); return retVal; } /*! \fn int Win_QextSerialPort::putch(int ch) Writes a single character to the serial port. Return value is the byte written, or -1 on error. This function has no effect if the serial port associated with the class is not currently open. */ int Win_QextSerialPort::putch(int ch) { LOCK_MUTEX(); int retVal=0; if (portOpen) { DWORD Win_BytesWritten; if (!WriteFile(Win_Handle, (void*)&ch, 1, &Win_BytesWritten, NULL)) { retVal=-1; lastErr=E_WRITE_FAILED; } else { retVal=ch; } } UNLOCK_MUTEX(); flush(); return retVal; } /*! \fn int Win_QextSerialPort::ungetch(int) This function is included to implement the full QIODevice interface, and currently has no purpose within this class. This function is meaningless on an unbuffered device and currently only prints a warning message to that effect. */ int Win_QextSerialPort::ungetch(int) { /*meaningless on unbuffered sequential device - return error and print a warning*/ TTY_WARNING("Win_QextSerialPort: ungetch() called on an unbuffered sequential device - operation is meaningless"); return -1; } /*! \fn void Win_QextSerialPort::setFlowControl(FlowType flow) Sets the flow control used by the port. Possible values of flow are: \verbatim FLOW_OFF No flow control FLOW_HARDWARE Hardware (RTS/CTS) flow control FLOW_XONXOFF Software (XON/XOFF) flow control \endverbatim */ void Win_QextSerialPort::setFlowControl(FlowType flow) { LOCK_MUTEX(); if (Settings.FlowControl!=flow) { Settings.FlowControl=flow; } if (portOpen) { switch(flow) { /*no flow control*/ case FLOW_OFF: Win_CommConfig.dcb.fOutxCtsFlow=FALSE; Win_CommConfig.dcb.fRtsControl=RTS_CONTROL_DISABLE; Win_CommConfig.dcb.fInX=FALSE; Win_CommConfig.dcb.fOutX=FALSE; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); break; /*software (XON/XOFF) flow control*/ case FLOW_XONXOFF: Win_CommConfig.dcb.fOutxCtsFlow=FALSE; Win_CommConfig.dcb.fRtsControl=RTS_CONTROL_DISABLE; Win_CommConfig.dcb.fInX=TRUE; Win_CommConfig.dcb.fOutX=TRUE; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); break; case FLOW_HARDWARE: Win_CommConfig.dcb.fOutxCtsFlow=TRUE; Win_CommConfig.dcb.fRtsControl=RTS_CONTROL_HANDSHAKE; Win_CommConfig.dcb.fInX=FALSE; Win_CommConfig.dcb.fOutX=FALSE; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); break; } } UNLOCK_MUTEX(); } /*! \fn void Win_QextSerialPort::setParity(ParityType parity) Sets the parity associated with the serial port. The possible values of parity are: \verbatim PAR_SPACE Space Parity PAR_MARK Mark Parity PAR_NONE No Parity PAR_EVEN Even Parity PAR_ODD Odd Parity \endverbatim */ void Win_QextSerialPort::setParity(ParityType parity) { LOCK_MUTEX(); if (Settings.Parity!=parity) { Settings.Parity=parity; } if (portOpen) { Win_CommConfig.dcb.Parity=(unsigned char)parity; switch (parity) { /*space parity*/ case PAR_SPACE: if (Settings.DataBits==DATA_8) { TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: Space parity with 8 data bits is not supported by POSIX systems."); } Win_CommConfig.dcb.fParity=TRUE; break; /*mark parity - WINDOWS ONLY*/ case PAR_MARK: TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: Mark parity is not supported by POSIX systems"); Win_CommConfig.dcb.fParity=TRUE; break; /*no parity*/ case PAR_NONE: Win_CommConfig.dcb.fParity=FALSE; break; /*even parity*/ case PAR_EVEN: Win_CommConfig.dcb.fParity=TRUE; break; /*odd parity*/ case PAR_ODD: Win_CommConfig.dcb.fParity=TRUE; break; } SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } UNLOCK_MUTEX(); } /*! \fn void Win_QextSerialPort::setDataBits(DataBitsType dataBits) Sets the number of data bits used by the serial port. Possible values of dataBits are: \verbatim DATA_5 5 data bits DATA_6 6 data bits DATA_7 7 data bits DATA_8 8 data bits \endverbatim \note This function is subject to the following restrictions: \par 5 data bits cannot be used with 2 stop bits. \par 1.5 stop bits can only be used with 5 data bits. \par 8 data bits cannot be used with space parity on POSIX systems. */ void Win_QextSerialPort::setDataBits(DataBitsType dataBits) { LOCK_MUTEX(); if (Settings.DataBits!=dataBits) { if ((Settings.StopBits==STOP_2 && dataBits==DATA_5) || (Settings.StopBits==STOP_1_5 && dataBits!=DATA_5)) { } else { Settings.DataBits=dataBits; } } if (portOpen) { switch(dataBits) { /*5 data bits*/ case DATA_5: if (Settings.StopBits==STOP_2) { TTY_WARNING("Win_QextSerialPort: 5 Data bits cannot be used with 2 stop bits."); } else { Win_CommConfig.dcb.ByteSize=5; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } break; /*6 data bits*/ case DATA_6: if (Settings.StopBits==STOP_1_5) { TTY_WARNING("Win_QextSerialPort: 6 Data bits cannot be used with 1.5 stop bits."); } else { Win_CommConfig.dcb.ByteSize=6; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } break; /*7 data bits*/ case DATA_7: if (Settings.StopBits==STOP_1_5) { TTY_WARNING("Win_QextSerialPort: 7 Data bits cannot be used with 1.5 stop bits."); } else { Win_CommConfig.dcb.ByteSize=7; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } break; /*8 data bits*/ case DATA_8: if (Settings.StopBits==STOP_1_5) { TTY_WARNING("Win_QextSerialPort: 8 Data bits cannot be used with 1.5 stop bits."); } else { Win_CommConfig.dcb.ByteSize=8; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } break; } } UNLOCK_MUTEX(); } /*! \fn void Win_QextSerialPort::setStopBits(StopBitsType stopBits) Sets the number of stop bits used by the serial port. Possible values of stopBits are: \verbatim STOP_1 1 stop bit STOP_1_5 1.5 stop bits STOP_2 2 stop bits \endverbatim \note This function is subject to the following restrictions: \par 2 stop bits cannot be used with 5 data bits. \par 1.5 stop bits cannot be used with 6 or more data bits. \par POSIX does not support 1.5 stop bits. */ void Win_QextSerialPort::setStopBits(StopBitsType stopBits) { LOCK_MUTEX(); if (Settings.StopBits!=stopBits) { if ((Settings.DataBits==DATA_5 && stopBits==STOP_2) || (stopBits==STOP_1_5 && Settings.DataBits!=DATA_5)) { } else { Settings.StopBits=stopBits; } } if (portOpen) { switch (stopBits) { /*one stop bit*/ case STOP_1: Win_CommConfig.dcb.StopBits=ONESTOPBIT; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); break; /*1.5 stop bits*/ case STOP_1_5: TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: 1.5 stop bit operation is not supported by POSIX."); if (Settings.DataBits!=DATA_5) { TTY_WARNING("Win_QextSerialPort: 1.5 stop bits can only be used with 5 data bits"); } else { Win_CommConfig.dcb.StopBits=ONE5STOPBITS; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } break; /*two stop bits*/ case STOP_2: if (Settings.DataBits==DATA_5) { TTY_WARNING("Win_QextSerialPort: 2 stop bits cannot be used with 5 data bits"); } else { Win_CommConfig.dcb.StopBits=TWOSTOPBITS; SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } break; } } UNLOCK_MUTEX(); } /*! \fn void Win_QextSerialPort::setBaudRate(BaudRateType baudRate) 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. \verbatim 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 \endverbatim */ void Win_QextSerialPort::setBaudRate(BaudRateType baudRate) { LOCK_MUTEX(); if (Settings.BaudRate!=baudRate) { switch (baudRate) { case BAUD50: case BAUD75: case BAUD134: case BAUD150: case BAUD200: Settings.BaudRate=BAUD110; break; case BAUD1800: Settings.BaudRate=BAUD1200; break; case BAUD76800: Settings.BaudRate=BAUD57600; break; default: Settings.BaudRate=baudRate; break; } } if (portOpen) { switch (baudRate) { /*50 baud*/ case BAUD50: TTY_WARNING("Win_QextSerialPort: Windows does not support 50 baud operation. Switching to 110 baud."); Win_CommConfig.dcb.BaudRate=CBR_110; break; /*75 baud*/ case BAUD75: TTY_WARNING("Win_QextSerialPort: Windows does not support 75 baud operation. Switching to 110 baud."); Win_CommConfig.dcb.BaudRate=CBR_110; break; /*110 baud*/ case BAUD110: Win_CommConfig.dcb.BaudRate=CBR_110; break; /*134.5 baud*/ case BAUD134: TTY_WARNING("Win_QextSerialPort: Windows does not support 134.5 baud operation. Switching to 110 baud."); Win_CommConfig.dcb.BaudRate=CBR_110; break; /*150 baud*/ case BAUD150: TTY_WARNING("Win_QextSerialPort: Windows does not support 150 baud operation. Switching to 110 baud."); Win_CommConfig.dcb.BaudRate=CBR_110; break; /*200 baud*/ case BAUD200: TTY_WARNING("Win_QextSerialPort: Windows does not support 200 baud operation. Switching to 110 baud."); Win_CommConfig.dcb.BaudRate=CBR_110; break; /*300 baud*/ case BAUD300: Win_CommConfig.dcb.BaudRate=CBR_300; break; /*600 baud*/ case BAUD600: Win_CommConfig.dcb.BaudRate=CBR_600; break; /*1200 baud*/ case BAUD1200: Win_CommConfig.dcb.BaudRate=CBR_1200; break; /*1800 baud*/ case BAUD1800: TTY_WARNING("Win_QextSerialPort: Windows does not support 1800 baud operation. Switching to 1200 baud."); Win_CommConfig.dcb.BaudRate=CBR_1200; break; /*2400 baud*/ case BAUD2400: Win_CommConfig.dcb.BaudRate=CBR_2400; break; /*4800 baud*/ case BAUD4800: Win_CommConfig.dcb.BaudRate=CBR_4800; break; /*9600 baud*/ case BAUD9600: Win_CommConfig.dcb.BaudRate=CBR_9600; break; /*14400 baud*/ case BAUD14400: TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 14400 baud operation."); Win_CommConfig.dcb.BaudRate=CBR_14400; break; /*19200 baud*/ case BAUD19200: Win_CommConfig.dcb.BaudRate=CBR_19200; break; /*38400 baud*/ case BAUD38400: Win_CommConfig.dcb.BaudRate=CBR_38400; break; /*56000 baud*/ case BAUD56000: TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 56000 baud operation."); Win_CommConfig.dcb.BaudRate=CBR_56000; break; /*57600 baud*/ case BAUD57600: Win_CommConfig.dcb.BaudRate=CBR_57600; break; /*76800 baud*/ case BAUD76800: TTY_WARNING("Win_QextSerialPort: Windows does not support 76800 baud operation. Switching to 57600 baud."); Win_CommConfig.dcb.BaudRate=CBR_57600; break; /*115200 baud*/ case BAUD115200: Win_CommConfig.dcb.BaudRate=CBR_115200; break; /*128000 baud*/ case BAUD128000: TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 128000 baud operation."); Win_CommConfig.dcb.BaudRate=CBR_128000; break; /*256000 baud*/ case BAUD256000: TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 256000 baud operation."); Win_CommConfig.dcb.BaudRate=CBR_256000; break; } SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG)); } UNLOCK_MUTEX(); } /*! \fn void Win_QextSerialPort::setDtr(bool set=true) Sets DTR line to the requested state (high by default). This function will have no effect if the port associated with the class is not currently open. */ void Win_QextSerialPort::setDtr(bool set) { LOCK_MUTEX(); if (portOpen) { if (set) { EscapeCommFunction(Win_Handle, SETDTR); } else { EscapeCommFunction(Win_Handle, CLRDTR); } } UNLOCK_MUTEX(); } /*! \fn void Win_QextSerialPort::setRts(bool set=true) Sets RTS line to the requested state (high by default). This function will have no effect if the port associated with the class is not currently open. */ void Win_QextSerialPort::setRts(bool set) { LOCK_MUTEX(); if (portOpen) { if (set) { EscapeCommFunction(Win_Handle, SETRTS); } else { EscapeCommFunction(Win_Handle, CLRRTS); } } UNLOCK_MUTEX(); } /*! \fn unsigned long Win_QextSerialPort::lineStatus(void) returns the line status as stored by the port function. This function will retrieve the states of the following lines: DCD, CTS, DSR, and RI. On POSIX systems, the following additional lines can be monitored: DTR, RTS, Secondary TXD, and Secondary RXD. The value returned is an unsigned long with specific bits indicating which lines are high. The following constants should be used to examine the states of individual lines: \verbatim Mask Line ------ ---- LS_CTS CTS LS_DSR DSR LS_DCD DCD LS_RI RI \endverbatim This function will return 0 if the port associated with the class is not currently open. */ unsigned long Win_QextSerialPort::lineStatus(void) { unsigned long Status=0, Temp; LOCK_MUTEX(); if (portOpen) { GetCommModemStatus(Win_Handle, &Temp); if (Temp&MS_CTS_ON) { Status|=LS_CTS; } if (Temp&MS_DSR_ON) { Status|=LS_DSR; } if (Temp&MS_RING_ON) { Status|=LS_RI; } if (Temp&MS_RLSD_ON) { Status|=LS_DCD; } } UNLOCK_MUTEX(); return Status; } /*! \fn void Win_QextSerialPort::setTimeout(unsigned long sec=0, unsigned long millisec=0); Sets the read and write timeouts for the port to sec seconds and millisec milliseconds. */ void Win_QextSerialPort::setTimeout(unsigned long sec, unsigned long millisec) { Settings.Timeout_Sec=sec; Settings.Timeout_Millisec=millisec; Win_CommTimeouts.ReadIntervalTimeout = sec*1000+millisec; Win_CommTimeouts.ReadTotalTimeoutMultiplier = sec*1000+millisec; Win_CommTimeouts.ReadTotalTimeoutConstant = 0; Win_CommTimeouts.WriteTotalTimeoutMultiplier = sec*1000+millisec; Win_CommTimeouts.WriteTotalTimeoutConstant = 0; SetCommTimeouts(Win_Handle, &Win_CommTimeouts); }