📄 win_qextserialport.cpp
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*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 (isOpen()) {
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)
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 (isOpen()) {
if (set) {
EscapeCommFunction(Win_Handle, SETDTR);
}
else {
EscapeCommFunction(Win_Handle, CLRDTR);
}
}
UNLOCK_MUTEX();
}
/*!
\fn void Win_QextSerialPort::setRts(bool set)
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 (isOpen()) {
if (set) {
EscapeCommFunction(Win_Handle, SETRTS);
}
else {
EscapeCommFunction(Win_Handle, CLRRTS);
}
}
UNLOCK_MUTEX();
}
/*!
\fn ulong 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.
*/
ulong Win_QextSerialPort::lineStatus(void) {
unsigned long Status=0, Temp=0;
LOCK_MUTEX();
if (isOpen()) {
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;
}
bool Win_QextSerialPort::waitForReadyRead(int msecs)
{
//@todo implement
return false;
}
qint64 Win_QextSerialPort::bytesToWrite() const
{
return _bytesToWrite;
}
void Win_QextSerialPort::monitorCommEvent()
{
DWORD eventMask = 0;
ResetEvent(overlap.hEvent);
if (!WaitCommEvent(Win_Handle, & eventMask, & overlap))
if (GetLastError() != ERROR_IO_PENDING)
qCritical("WaitCommEvent error %ld\n", GetLastError());
if (WaitForSingleObject(overlap.hEvent, INFINITE) == WAIT_OBJECT_0) {
//overlap event occured
DWORD undefined;
if (!GetOverlappedResult(Win_Handle, & overlap, & undefined, false)) {
qWarning("Comm event overlapped error %ld", GetLastError());
return;
}
if (eventMask & EV_RXCHAR) {
if (sender() != this)
emit readyRead();
}
if (eventMask & EV_TXEMPTY) {
DWORD numBytes;
GetOverlappedResult(Win_Handle, & overlapWrite, & numBytes, true);
bytesToWriteLock->lockForWrite();
if (sender() != this)
emit bytesWritten(bytesToWrite());
_bytesToWrite = 0;
bytesToWriteLock->unlock();
}
if (eventMask & EV_DSR)
if (lineStatus() & LS_DSR)
emit dsrChanged(true);
else
emit dsrChanged(false);
}
}
void Win_QextSerialPort::terminateCommWait()
{
SetCommMask(Win_Handle, 0);
}
/*!
\fn void Win_QextSerialPort::setTimeout(ulong millisec);
Sets the read and write timeouts for the port to millisec milliseconds.
Setting 0 for both sec and millisec indicates that timeouts are not used for read nor
write operations. Setting -1 indicates that read and write should return immediately.
\note this function does nothing in event driven mode.
*/
void Win_QextSerialPort::setTimeout(long millisec) {
LOCK_MUTEX();
Settings.Timeout_Millisec = millisec;
if (millisec == -1) {
Win_CommTimeouts.ReadIntervalTimeout = MAXDWORD;
Win_CommTimeouts.ReadTotalTimeoutConstant = 0;
} else {
Win_CommTimeouts.ReadIntervalTimeout = millisec;
Win_CommTimeouts.ReadTotalTimeoutConstant = millisec;
}
Win_CommTimeouts.ReadTotalTimeoutMultiplier = 0;
Win_CommTimeouts.WriteTotalTimeoutMultiplier = millisec;
Win_CommTimeouts.WriteTotalTimeoutConstant = 0;
if (queryMode() != QextSerialBase::EventDriven)
SetCommTimeouts(Win_Handle, &Win_CommTimeouts);
UNLOCK_MUTEX();
}
Win_QextSerialThread::Win_QextSerialThread(Win_QextSerialPort * qesp):
QThread()
{
this->qesp = qesp;
terminate = false;
}
void Win_QextSerialThread::stop()
{
terminate = true;
qesp->terminateCommWait();
}
void Win_QextSerialThread::run()
{
while (!terminate)
qesp->monitorCommEvent();
terminate = false;
}
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