WebSVN - Projects - Blame - Rev 158 - /QMK-Groundstation/branches/waypoint/SerialPort/win

Rev	Author	Line No.	Line
158	KeyOz	1	/*!
		2	\class Win_QextSerialPort
		3	\version 1.0.0
		4	\author Stefan Sander
		5
		6	A cross-platform serial port class.
		7	This class encapsulates the Windows portion of QextSerialPort. The user will be notified of
		8	errors and possible portability conflicts at run-time by default - this behavior can be turned
		9	off by defining _TTY_NOWARN_ (to turn off all warnings) or _TTY_NOWARN_PORT_ (to turn off
		10	portability warnings) in the project. Note that defining _TTY_NOWARN_ also defines
		11	_TTY_NOWARN_PORT_.
		12
		13	\note
		14	On Windows NT/2000/XP this class uses Win32 serial port functions by default. The user may
		15	select POSIX behavior under NT, 2000, or XP ONLY by defining _TTY_POSIX_ in the project. I can
		16	make no guarantees as to the quality of POSIX support under NT/2000 however.
		17
		18	*/
		19
		20	#include <stdio.h>
		21	#include "win_qextserialport.h"
		22
		23	/*!
		24	\fn Win_QextSerialPort::Win_QextSerialPort()
		25	Default constructor. Note that the name of the device used by a Win_QextSerialPort constructed
		26	with this constructor will be determined by #defined constants, or lack thereof - the default
		27	behavior is the same as _TTY_LINUX_. Possible naming conventions and their associated constants
		28	are:
		29
		30	\verbatim
		31
		32	Constant Used By Naming Convention
		33	---------- ------------- ------------------------
		34	_TTY_WIN_ Windows COM1, COM2
		35	_TTY_IRIX_ SGI/IRIX /dev/ttyf1, /dev/ttyf2
		36	_TTY_HPUX_ HP-UX /dev/tty1p0, /dev/tty2p0
		37	_TTY_SUN_ SunOS/Solaris /dev/ttya, /dev/ttyb
		38	_TTY_DIGITAL_ Digital UNIX /dev/tty01, /dev/tty02
		39	_TTY_FREEBSD_ FreeBSD /dev/ttyd0, /dev/ttyd1
		40	_TTY_LINUX_ Linux /dev/ttyS0, /dev/ttyS1
		41	<none> Linux /dev/ttyS0, /dev/ttyS1
		42	\endverbatim
		43
		44	This constructor associates the object with the first port on the system, e.g. COM1 for Windows
		45	platforms. See the other constructor if you need a port other than the first.
		46	*/
		47	Win_QextSerialPort::Win_QextSerialPort():QextSerialBase() {
		48	Win_Handle=INVALID_HANDLE_VALUE;
		49	}
		50
		51	/*!Win_QextSerialPort::Win_QextSerialPort(const Win_QextSerialPort&)
		52	Copy constructor.
		53	*/
		54	Win_QextSerialPort::Win_QextSerialPort(const Win_QextSerialPort& s):QextSerialBase(s.port) {
		55	Win_Handle=INVALID_HANDLE_VALUE;
		56	setOpenMode(s.openMode());
		57	lastErr=s.lastErr;
		58	port = s.port;
		59	Settings.FlowControl=s.Settings.FlowControl;
		60	Settings.Parity=s.Settings.Parity;
		61	Settings.DataBits=s.Settings.DataBits;
		62	Settings.StopBits=s.Settings.StopBits;
		63	Settings.BaudRate=s.Settings.BaudRate;
		64	Win_Handle=s.Win_Handle;
		65	memcpy(&Win_CommConfig, &s.Win_CommConfig, sizeof(COMMCONFIG));
		66	memcpy(&Win_CommTimeouts, &s.Win_CommTimeouts, sizeof(COMMTIMEOUTS));
		67	}
		68
		69	/*!
		70	\fn Win_QextSerialPort::Win_QextSerialPort(const QString & name)
		71	Constructs a serial port attached to the port specified by devName.
		72	devName is the name of the device, which is windowsystem-specific,
		73	e.g."COM2" or "/dev/ttyS0".
		74	*/
		75	Win_QextSerialPort::Win_QextSerialPort(const QString & name):QextSerialBase(name) {
		76	Win_Handle=INVALID_HANDLE_VALUE;
		77	}
		78
		79	/*!
		80	\fn Win_QextSerialPort::Win_QextSerialPort(const PortSettings& settings)
		81	Constructs a port with default name and specified settings.
		82	*/
		83	Win_QextSerialPort::Win_QextSerialPort(const PortSettings& settings) {
		84	Win_Handle=INVALID_HANDLE_VALUE;
		85	setBaudRate(settings.BaudRate);
		86	setDataBits(settings.DataBits);
		87	setStopBits(settings.StopBits);
		88	setParity(settings.Parity);
		89	setFlowControl(settings.FlowControl);
		90	setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec);
		91	}
		92
		93	/*!
		94	\fn Win_QextSerialPort::Win_QextSerialPort(const QString & name, const PortSettings& settings)
		95	Constructs a port with specified name and settings.
		96	*/
		97	Win_QextSerialPort::Win_QextSerialPort(const QString & name, const PortSettings& settings) {
		98	Win_Handle=INVALID_HANDLE_VALUE;
		99	setPortName(name);
		100	setBaudRate(settings.BaudRate);
		101	setDataBits(settings.DataBits);
		102	setStopBits(settings.StopBits);
		103	setParity(settings.Parity);
		104	setFlowControl(settings.FlowControl);
		105	setTimeout(settings.Timeout_Sec, settings.Timeout_Millisec);
		106	}
		107
		108	/*!
		109	\fn Win_QextSerialPort::~Win_QextSerialPort()
		110	Standard destructor.
		111	*/
		112	Win_QextSerialPort::~Win_QextSerialPort() {
		113	if (isOpen()) {
		114	close();
		115	}
		116	}
		117
		118	/*!
		119	\fn Win_QextSerialPort& Win_QextSerialPort::operator=(const Win_QextSerialPort& s)
		120	overrides the = operator
		121	*/
		122	Win_QextSerialPort& Win_QextSerialPort::operator=(const Win_QextSerialPort& s) {
		123	setOpenMode(s.openMode());
		124	lastErr=s.lastErr;
		125	port = s.port;
		126	Settings.FlowControl=s.Settings.FlowControl;
		127	Settings.Parity=s.Settings.Parity;
		128	Settings.DataBits=s.Settings.DataBits;
		129	Settings.StopBits=s.Settings.StopBits;
		130	Settings.BaudRate=s.Settings.BaudRate;
		131	Win_Handle=s.Win_Handle;
		132	memcpy(&Win_CommConfig, &s.Win_CommConfig, sizeof(COMMCONFIG));
		133	memcpy(&Win_CommTimeouts, &s.Win_CommTimeouts, sizeof(COMMTIMEOUTS));
		134	return *this;
		135	}
		136
		137	/*!
		138	\fn bool Win_QextSerialPort::open(OpenMode mode)
		139	Opens a serial port. Note that this function does not specify which device to open. If you need
		140	to open a device by name, see Win_QextSerialPort::open(const char*). This function has no effect
		141	if the port associated with the class is already open. The port is also configured to the current
		142	settings, as stored in the Settings structure.
		143	*/
		144	bool Win_QextSerialPort::open(OpenMode mode) {
		145	unsigned long confSize = sizeof(COMMCONFIG);
		146	Win_CommConfig.dwSize = confSize;
		147
		148	LOCK_MUTEX();
		149	if (mode == QIODevice::NotOpen)
		150	return isOpen();
		151	if (!isOpen()) {
		152	/open the port/
		153	Win_Handle=CreateFileA(port.toAscii(), GENERIC_READ\|GENERIC_WRITE,
		154	FILE_SHARE_READ\|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
		155	if (Win_Handle!=INVALID_HANDLE_VALUE) {
		156	/set open mode/
		157	QIODevice::open(mode);
		158
		159	/configure port settings/
		160	GetCommConfig(Win_Handle, &Win_CommConfig, &confSize);
		161	GetCommState(Win_Handle, &(Win_CommConfig.dcb));
		162
		163	/set up parameters/
		164	Win_CommConfig.dcb.fBinary=TRUE;
		165	Win_CommConfig.dcb.fInX=FALSE;
		166	Win_CommConfig.dcb.fOutX=FALSE;
		167	Win_CommConfig.dcb.fAbortOnError=FALSE;
		168	Win_CommConfig.dcb.fNull=FALSE;
		169	setBaudRate(Settings.BaudRate);
		170	setDataBits(Settings.DataBits);
		171	setStopBits(Settings.StopBits);
		172	setParity(Settings.Parity);
		173	setFlowControl(Settings.FlowControl);
		174	setTimeout(Settings.Timeout_Sec, Settings.Timeout_Millisec);
		175	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		176	}
		177	}
		178	UNLOCK_MUTEX();
		179	return isOpen();
		180	}
		181
		182	/*!
		183	\fn void Win_QextSerialPort::close()
		184	Closes a serial port. This function has no effect if the serial port associated with the class
		185	is not currently open.
		186	*/
		187	void Win_QextSerialPort::close() {
		188	LOCK_MUTEX();
		189	CloseHandle(Win_Handle);
		190	QIODevice::close();
		191	UNLOCK_MUTEX();
		192	}
		193
		194	/*!
		195	\fn void Win_QextSerialPort::flush()
		196	Flushes all pending I/O to the serial port. This function has no effect if the serial port
		197	associated with the class is not currently open.
		198	*/
		199	void Win_QextSerialPort::flush() {
		200	LOCK_MUTEX();
		201	if (isOpen()) {
		202	FlushFileBuffers(Win_Handle);
		203	}
		204	UNLOCK_MUTEX();
		205	}
		206
		207	/*!
		208	\fn qint64 Win_QextSerialPort::size() const
		209	This function will return the number of bytes waiting in the receive queue of the serial port.
		210	It is included primarily to provide a complete QIODevice interface, and will not record errors
		211	in the lastErr member (because it is const). This function is also not thread-safe - in
		212	multithreading situations, use Win_QextSerialPort::bytesAvailable() instead.
		213	*/
		214	qint64 Win_QextSerialPort::size() const {
		215	int availBytes;
		216	COMSTAT Win_ComStat;
		217	DWORD Win_ErrorMask=0;
		218	ClearCommError(Win_Handle, &Win_ErrorMask, &Win_ComStat);
		219	availBytes = Win_ComStat.cbInQue;
		220	return (qint64)availBytes;
		221	}
		222
		223	/*!
		224	\fn qint64 Win_QextSerialPort::bytesAvailable()
		225	Returns the number of bytes waiting in the port's receive queue. This function will return 0 if
		226	the port is not currently open, or -1 on error. Error information can be retrieved by calling
		227	Win_QextSerialPort::getLastError().
		228	*/
		229	qint64 Win_QextSerialPort::bytesAvailable() {
		230	LOCK_MUTEX();
		231	if (isOpen()) {
		232	DWORD Errors;
		233	COMSTAT Status;
		234	bool success=ClearCommError(Win_Handle, &Errors, &Status);
		235	translateError(Errors);
		236	if (success) {
		237	lastErr=E_NO_ERROR;
		238	UNLOCK_MUTEX();
		239	return Status.cbInQue + QIODevice::bytesAvailable();
		240	}
		241	UNLOCK_MUTEX();
		242	return (unsigned int)-1;
		243	}
		244	UNLOCK_MUTEX();
		245	return 0;
		246	}
		247
		248	/*!
		249	\fn void Win_QextSerialPort::translateError(ulong error)
		250	Translates a system-specific error code to a QextSerialPort error code. Used internally.
		251	*/
		252	void Win_QextSerialPort::translateError(ulong error) {
		253	if (error&CE_BREAK) {
		254	lastErr=E_BREAK_CONDITION;
		255	}
		256	else if (error&CE_FRAME) {
		257	lastErr=E_FRAMING_ERROR;
		258	}
		259	else if (error&CE_IOE) {
		260	lastErr=E_IO_ERROR;
		261	}
		262	else if (error&CE_MODE) {
		263	lastErr=E_INVALID_FD;
		264	}
		265	else if (error&CE_OVERRUN) {
		266	lastErr=E_BUFFER_OVERRUN;
		267	}
		268	else if (error&CE_RXPARITY) {
		269	lastErr=E_RECEIVE_PARITY_ERROR;
		270	}
		271	else if (error&CE_RXOVER) {
		272	lastErr=E_RECEIVE_OVERFLOW;
		273	}
		274	else if (error&CE_TXFULL) {
		275	lastErr=E_TRANSMIT_OVERFLOW;
		276	}
		277	}
		278
		279	/*!
		280	\fn qint64 Win_QextSerialPort::readData(char *data, qint64 maxSize)
		281	Reads a block of data from the serial port. This function will read at most maxlen bytes from
		282	the serial port and place them in the buffer pointed to by data. Return value is the number of
		283	bytes actually read, or -1 on error.
		284
		285	\warning before calling this function ensure that serial port associated with this class
		286	is currently open (use isOpen() function to check if port is open).
		287	*/
		288	qint64 Win_QextSerialPort::readData(char *data, qint64 maxSize)
		289	{
		290	LOCK_MUTEX();
		291	int retVal=0;
		292	COMSTAT Win_ComStat;
		293	DWORD Win_BytesRead=0;
		294	DWORD Win_ErrorMask=0;
		295	ClearCommError(Win_Handle, &Win_ErrorMask, &Win_ComStat);
		296	if (Win_ComStat.cbInQue &&
		297	(!ReadFile(Win_Handle, (void*)data, (DWORD)maxSize, &Win_BytesRead, NULL)
		298	\|\| Win_BytesRead==0)) {
		299	lastErr=E_READ_FAILED;
		300	retVal=-1;
		301	}
		302	else {
		303	retVal=((int)Win_BytesRead);
		304	}
		305	UNLOCK_MUTEX();
		306
		307	return retVal;
		308	}
		309
		310	/*!
		311	\fn qint64 Win_QextSerialPort::writeData(const char *data, qint64 maxSize)
		312	Writes a block of data to the serial port. This function will write len bytes
		313	from the buffer pointed to by data to the serial port. Return value is the number
		314	of bytes actually written, or -1 on error.
		315
		316	\warning before calling this function ensure that serial port associated with this class
		317	is currently open (use isOpen() function to check if port is open).
		318	*/
		319	qint64 Win_QextSerialPort::writeData(const char *data, qint64 maxSize)
		320	{
		321	LOCK_MUTEX();
		322	int retVal=0;
		323	DWORD Win_BytesWritten;
		324	if (!WriteFile(Win_Handle, (void*)data, (DWORD)maxSize, &Win_BytesWritten, NULL)) {
		325	lastErr=E_WRITE_FAILED;
		326	retVal=-1;
		327	}
		328	else {
		329	retVal=((int)Win_BytesWritten);
		330	}
		331	UNLOCK_MUTEX();
		332
		333	flush();
		334	return retVal;
		335	}
		336
		337	/*!
		338	\fn void Win_QextSerialPort::ungetChar(char c)
		339	This function is included to implement the full QIODevice interface, and currently has no
		340	purpose within this class. This function is meaningless on an unbuffered device and currently
		341	only prints a warning message to that effect.
		342	*/
		343	void Win_QextSerialPort::ungetChar(char c) {
		344
		345	/meaningless on unbuffered sequential device - return error and print a warning/
		346	TTY_WARNING("Win_QextSerialPort: ungetChar() called on an unbuffered sequential device - operation is meaningless");
		347	}
		348
		349	/*!
		350	\fn void Win_QextSerialPort::setFlowControl(FlowType flow)
		351	Sets the flow control used by the port. Possible values of flow are:
		352	\verbatim
		353	FLOW_OFF No flow control
		354	FLOW_HARDWARE Hardware (RTS/CTS) flow control
		355	FLOW_XONXOFF Software (XON/XOFF) flow control
		356	\endverbatim
		357	*/
		358	void Win_QextSerialPort::setFlowControl(FlowType flow) {
		359	LOCK_MUTEX();
		360	if (Settings.FlowControl!=flow) {
		361	Settings.FlowControl=flow;
		362	}
		363	if (isOpen()) {
		364	switch(flow) {
		365
		366	/no flow control/
		367	case FLOW_OFF:
		368	Win_CommConfig.dcb.fOutxCtsFlow=FALSE;
		369	Win_CommConfig.dcb.fRtsControl=RTS_CONTROL_DISABLE;
		370	Win_CommConfig.dcb.fInX=FALSE;
		371	Win_CommConfig.dcb.fOutX=FALSE;
		372	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		373	break;
		374
		375	/software (XON/XOFF) flow control/
		376	case FLOW_XONXOFF:
		377	Win_CommConfig.dcb.fOutxCtsFlow=FALSE;
		378	Win_CommConfig.dcb.fRtsControl=RTS_CONTROL_DISABLE;
		379	Win_CommConfig.dcb.fInX=TRUE;
		380	Win_CommConfig.dcb.fOutX=TRUE;
		381	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		382	break;
		383
		384	case FLOW_HARDWARE:
		385	Win_CommConfig.dcb.fOutxCtsFlow=TRUE;
		386	Win_CommConfig.dcb.fRtsControl=RTS_CONTROL_HANDSHAKE;
		387	Win_CommConfig.dcb.fInX=FALSE;
		388	Win_CommConfig.dcb.fOutX=FALSE;
		389	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		390	break;
		391	}
		392	}
		393	UNLOCK_MUTEX();
		394	}
		395
		396	/*!
		397	\fn void Win_QextSerialPort::setParity(ParityType parity)
		398	Sets the parity associated with the serial port. The possible values of parity are:
		399	\verbatim
		400	PAR_SPACE Space Parity
		401	PAR_MARK Mark Parity
		402	PAR_NONE No Parity
		403	PAR_EVEN Even Parity
		404	PAR_ODD Odd Parity
		405	\endverbatim
		406	*/
		407	void Win_QextSerialPort::setParity(ParityType parity) {
		408	LOCK_MUTEX();
		409	if (Settings.Parity!=parity) {
		410	Settings.Parity=parity;
		411	}
		412	if (isOpen()) {
		413	Win_CommConfig.dcb.Parity=(unsigned char)parity;
		414	switch (parity) {
		415
		416	/space parity/
		417	case PAR_SPACE:
		418	if (Settings.DataBits==DATA_8) {
		419	TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: Space parity with 8 data bits is not supported by POSIX systems.");
		420	}
		421	Win_CommConfig.dcb.fParity=TRUE;
		422	break;
		423
		424	/mark parity - WINDOWS ONLY/
		425	case PAR_MARK:
		426	TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: Mark parity is not supported by POSIX systems");
		427	Win_CommConfig.dcb.fParity=TRUE;
		428	break;
		429
		430	/no parity/
		431	case PAR_NONE:
		432	Win_CommConfig.dcb.fParity=FALSE;
		433	break;
		434
		435	/even parity/
		436	case PAR_EVEN:
		437	Win_CommConfig.dcb.fParity=TRUE;
		438	break;
		439
		440	/odd parity/
		441	case PAR_ODD:
		442	Win_CommConfig.dcb.fParity=TRUE;
		443	break;
		444	}
		445	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		446	}
		447	UNLOCK_MUTEX();
		448	}
		449
		450	/*!
		451	\fn void Win_QextSerialPort::setDataBits(DataBitsType dataBits)
		452	Sets the number of data bits used by the serial port. Possible values of dataBits are:
		453	\verbatim
		454	DATA_5 5 data bits
		455	DATA_6 6 data bits
		456	DATA_7 7 data bits
		457	DATA_8 8 data bits
		458	\endverbatim
		459
		460	\note
		461	This function is subject to the following restrictions:
		462	\par
		463	5 data bits cannot be used with 2 stop bits.
		464	\par
		465	1.5 stop bits can only be used with 5 data bits.
		466	\par
		467	8 data bits cannot be used with space parity on POSIX systems.
		468
		469	*/
		470	void Win_QextSerialPort::setDataBits(DataBitsType dataBits) {
		471	LOCK_MUTEX();
		472	if (Settings.DataBits!=dataBits) {
		473	if ((Settings.StopBits==STOP_2 && dataBits==DATA_5) \|\|
		474	(Settings.StopBits==STOP_1_5 && dataBits!=DATA_5)) {
		475	}
		476	else {
		477	Settings.DataBits=dataBits;
		478	}
		479	}
		480	if (isOpen()) {
		481	switch(dataBits) {
		482
		483	/5 data bits/
		484	case DATA_5:
		485	if (Settings.StopBits==STOP_2) {
		486	TTY_WARNING("Win_QextSerialPort: 5 Data bits cannot be used with 2 stop bits.");
		487	}
		488	else {
		489	Win_CommConfig.dcb.ByteSize=5;
		490	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		491	}
		492	break;
		493
		494	/6 data bits/
		495	case DATA_6:
		496	if (Settings.StopBits==STOP_1_5) {
		497	TTY_WARNING("Win_QextSerialPort: 6 Data bits cannot be used with 1.5 stop bits.");
		498	}
		499	else {
		500	Win_CommConfig.dcb.ByteSize=6;
		501	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		502	}
		503	break;
		504
		505	/7 data bits/
		506	case DATA_7:
		507	if (Settings.StopBits==STOP_1_5) {
		508	TTY_WARNING("Win_QextSerialPort: 7 Data bits cannot be used with 1.5 stop bits.");
		509	}
		510	else {
		511	Win_CommConfig.dcb.ByteSize=7;
		512	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		513	}
		514	break;
		515
		516	/8 data bits/
		517	case DATA_8:
		518	if (Settings.StopBits==STOP_1_5) {
		519	TTY_WARNING("Win_QextSerialPort: 8 Data bits cannot be used with 1.5 stop bits.");
		520	}
		521	else {
		522	Win_CommConfig.dcb.ByteSize=8;
		523	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		524	}
		525	break;
		526	}
		527	}
		528	UNLOCK_MUTEX();
		529	}
		530
		531	/*!
		532	\fn void Win_QextSerialPort::setStopBits(StopBitsType stopBits)
		533	Sets the number of stop bits used by the serial port. Possible values of stopBits are:
		534	\verbatim
		535	STOP_1 1 stop bit
		536	STOP_1_5 1.5 stop bits
		537	STOP_2 2 stop bits
		538	\endverbatim
		539
		540	\note
		541	This function is subject to the following restrictions:
		542	\par
		543	2 stop bits cannot be used with 5 data bits.
		544	\par
		545	1.5 stop bits cannot be used with 6 or more data bits.
		546	\par
		547	POSIX does not support 1.5 stop bits.
		548	*/
		549	void Win_QextSerialPort::setStopBits(StopBitsType stopBits) {
		550	LOCK_MUTEX();
		551	if (Settings.StopBits!=stopBits) {
		552	if ((Settings.DataBits==DATA_5 && stopBits==STOP_2) \|\|
		553	(stopBits==STOP_1_5 && Settings.DataBits!=DATA_5)) {
		554	}
		555	else {
		556	Settings.StopBits=stopBits;
		557	}
		558	}
		559	if (isOpen()) {
		560	switch (stopBits) {
		561
		562	/one stop bit/
		563	case STOP_1:
		564	Win_CommConfig.dcb.StopBits=ONESTOPBIT;
		565	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		566	break;
		567
		568	/1.5 stop bits/
		569	case STOP_1_5:
		570	TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: 1.5 stop bit operation is not supported by POSIX.");
		571	if (Settings.DataBits!=DATA_5) {
		572	TTY_WARNING("Win_QextSerialPort: 1.5 stop bits can only be used with 5 data bits");
		573	}
		574	else {
		575	Win_CommConfig.dcb.StopBits=ONE5STOPBITS;
		576	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		577	}
		578	break;
		579
		580	/two stop bits/
		581	case STOP_2:
		582	if (Settings.DataBits==DATA_5) {
		583	TTY_WARNING("Win_QextSerialPort: 2 stop bits cannot be used with 5 data bits");
		584	}
		585	else {
		586	Win_CommConfig.dcb.StopBits=TWOSTOPBITS;
		587	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		588	}
		589	break;
		590	}
		591	}
		592	UNLOCK_MUTEX();
		593	}
		594
		595	/*!
		596	\fn void Win_QextSerialPort::setBaudRate(BaudRateType baudRate)
		597	Sets the baud rate of the serial port. Note that not all rates are applicable on
		598	all platforms. The following table shows translations of the various baud rate
		599	constants on Windows(including NT/2000) and POSIX platforms. Speeds marked with an *
		600	are speeds that are usable on both Windows and POSIX.
		601	\verbatim
		602
		603	RATE Windows Speed POSIX Speed
		604	----------- ------------- -----------
		605	BAUD50 110 50
		606	BAUD75 110 75
		607	*BAUD110 110 110
		608	BAUD134 110 134.5
		609	BAUD150 110 150
		610	BAUD200 110 200
		611	*BAUD300 300 300
		612	*BAUD600 600 600
		613	*BAUD1200 1200 1200
		614	BAUD1800 1200 1800
		615	*BAUD2400 2400 2400
		616	*BAUD4800 4800 4800
		617	*BAUD9600 9600 9600
		618	BAUD14400 14400 9600
		619	*BAUD19200 19200 19200
		620	*BAUD38400 38400 38400
		621	BAUD56000 56000 38400
		622	*BAUD57600 57600 57600
		623	BAUD76800 57600 76800
		624	*BAUD115200 115200 115200
		625	BAUD128000 128000 115200
		626	BAUD256000 256000 115200
		627	\endverbatim
		628	*/
		629	void Win_QextSerialPort::setBaudRate(BaudRateType baudRate) {
		630	LOCK_MUTEX();
		631	if (Settings.BaudRate!=baudRate) {
		632	switch (baudRate) {
		633	case BAUD50:
		634	case BAUD75:
		635	case BAUD134:
		636	case BAUD150:
		637	case BAUD200:
		638	Settings.BaudRate=BAUD110;
		639	break;
		640
		641	case BAUD1800:
		642	Settings.BaudRate=BAUD1200;
		643	break;
		644
		645	case BAUD76800:
		646	Settings.BaudRate=BAUD57600;
		647	break;
		648
		649	default:
		650	Settings.BaudRate=baudRate;
		651	break;
		652	}
		653	}
		654	if (isOpen()) {
		655	switch (baudRate) {
		656
		657	/50 baud/
		658	case BAUD50:
		659	TTY_WARNING("Win_QextSerialPort: Windows does not support 50 baud operation. Switching to 110 baud.");
		660	Win_CommConfig.dcb.BaudRate=CBR_110;
		661	break;
		662
		663	/75 baud/
		664	case BAUD75:
		665	TTY_WARNING("Win_QextSerialPort: Windows does not support 75 baud operation. Switching to 110 baud.");
		666	Win_CommConfig.dcb.BaudRate=CBR_110;
		667	break;
		668
		669	/110 baud/
		670	case BAUD110:
		671	Win_CommConfig.dcb.BaudRate=CBR_110;
		672	break;
		673
		674	/134.5 baud/
		675	case BAUD134:
		676	TTY_WARNING("Win_QextSerialPort: Windows does not support 134.5 baud operation. Switching to 110 baud.");
		677	Win_CommConfig.dcb.BaudRate=CBR_110;
		678	break;
		679
		680	/150 baud/
		681	case BAUD150:
		682	TTY_WARNING("Win_QextSerialPort: Windows does not support 150 baud operation. Switching to 110 baud.");
		683	Win_CommConfig.dcb.BaudRate=CBR_110;
		684	break;
		685
		686	/200 baud/
		687	case BAUD200:
		688	TTY_WARNING("Win_QextSerialPort: Windows does not support 200 baud operation. Switching to 110 baud.");
		689	Win_CommConfig.dcb.BaudRate=CBR_110;
		690	break;
		691
		692	/300 baud/
		693	case BAUD300:
		694	Win_CommConfig.dcb.BaudRate=CBR_300;
		695	break;
		696
		697	/600 baud/
		698	case BAUD600:
		699	Win_CommConfig.dcb.BaudRate=CBR_600;
		700	break;
		701
		702	/1200 baud/
		703	case BAUD1200:
		704	Win_CommConfig.dcb.BaudRate=CBR_1200;
		705	break;
		706
		707	/1800 baud/
		708	case BAUD1800:
		709	TTY_WARNING("Win_QextSerialPort: Windows does not support 1800 baud operation. Switching to 1200 baud.");
		710	Win_CommConfig.dcb.BaudRate=CBR_1200;
		711	break;
		712
		713	/2400 baud/
		714	case BAUD2400:
		715	Win_CommConfig.dcb.BaudRate=CBR_2400;
		716	break;
		717
		718	/4800 baud/
		719	case BAUD4800:
		720	Win_CommConfig.dcb.BaudRate=CBR_4800;
		721	break;
		722
		723	/9600 baud/
		724	case BAUD9600:
		725	Win_CommConfig.dcb.BaudRate=CBR_9600;
		726	break;
		727
		728	/14400 baud/
		729	case BAUD14400:
		730	TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 14400 baud operation.");
		731	Win_CommConfig.dcb.BaudRate=CBR_14400;
		732	break;
		733
		734	/19200 baud/
		735	case BAUD19200:
		736	Win_CommConfig.dcb.BaudRate=CBR_19200;
		737	break;
		738
		739	/38400 baud/
		740	case BAUD38400:
		741	Win_CommConfig.dcb.BaudRate=CBR_38400;
		742	break;
		743
		744	/56000 baud/
		745	case BAUD56000:
		746	TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 56000 baud operation.");
		747	Win_CommConfig.dcb.BaudRate=CBR_56000;
		748	break;
		749
		750	/57600 baud/
		751	case BAUD57600:
		752	Win_CommConfig.dcb.BaudRate=CBR_57600;
		753	break;
		754
		755	/76800 baud/
		756	case BAUD76800:
		757	TTY_WARNING("Win_QextSerialPort: Windows does not support 76800 baud operation. Switching to 57600 baud.");
		758	Win_CommConfig.dcb.BaudRate=CBR_57600;
		759	break;
		760
		761	/115200 baud/
		762	case BAUD115200:
		763	Win_CommConfig.dcb.BaudRate=CBR_115200;
		764	break;
		765
		766	/128000 baud/
		767	case BAUD128000:
		768	TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 128000 baud operation.");
		769	Win_CommConfig.dcb.BaudRate=CBR_128000;
		770	break;
		771
		772	/256000 baud/
		773	case BAUD256000:
		774	TTY_PORTABILITY_WARNING("Win_QextSerialPort Portability Warning: POSIX does not support 256000 baud operation.");
		775	Win_CommConfig.dcb.BaudRate=CBR_256000;
		776	break;
		777	}
		778	SetCommConfig(Win_Handle, &Win_CommConfig, sizeof(COMMCONFIG));
		779	}
		780	UNLOCK_MUTEX();
		781	}
		782
		783	/*!
		784	\fn void Win_QextSerialPort::setDtr(bool set)
		785	Sets DTR line to the requested state (high by default). This function will have no effect if
		786	the port associated with the class is not currently open.
		787	*/
		788	void Win_QextSerialPort::setDtr(bool set) {
		789	LOCK_MUTEX();
		790	if (isOpen()) {
		791	if (set) {
		792	EscapeCommFunction(Win_Handle, SETDTR);
		793	}
		794	else {
		795	EscapeCommFunction(Win_Handle, CLRDTR);
		796	}
		797	}
		798	UNLOCK_MUTEX();
		799	}
		800
		801	/*!
		802	\fn void Win_QextSerialPort::setRts(bool set)
		803	Sets RTS line to the requested state (high by default). This function will have no effect if
		804	the port associated with the class is not currently open.
		805	*/
		806	void Win_QextSerialPort::setRts(bool set) {
		807	LOCK_MUTEX();
		808	if (isOpen()) {
		809	if (set) {
		810	EscapeCommFunction(Win_Handle, SETRTS);
		811	}
		812	else {
		813	EscapeCommFunction(Win_Handle, CLRRTS);
		814	}
		815	}
		816	UNLOCK_MUTEX();
		817	}
		818
		819	/*!
		820	\fn ulong Win_QextSerialPort::lineStatus(void)
		821	returns the line status as stored by the port function. This function will retrieve the states
		822	of the following lines: DCD, CTS, DSR, and RI. On POSIX systems, the following additional lines
		823	can be monitored: DTR, RTS, Secondary TXD, and Secondary RXD. The value returned is an unsigned
		824	long with specific bits indicating which lines are high. The following constants should be used
		825	to examine the states of individual lines:
		826
		827	\verbatim
		828	Mask Line
		829	------ ----
		830	LS_CTS CTS
		831	LS_DSR DSR
		832	LS_DCD DCD
		833	LS_RI RI
		834	\endverbatim
		835
		836	This function will return 0 if the port associated with the class is not currently open.
		837	*/
		838	ulong Win_QextSerialPort::lineStatus(void) {
		839	unsigned long Status=0, Temp=0;
		840	LOCK_MUTEX();
		841	if (isOpen()) {
		842	GetCommModemStatus(Win_Handle, &Temp);
		843	if (Temp&MS_CTS_ON) {
		844	Status\|=LS_CTS;
		845	}
		846	if (Temp&MS_DSR_ON) {
		847	Status\|=LS_DSR;
		848	}
		849	if (Temp&MS_RING_ON) {
		850	Status\|=LS_RI;
		851	}
		852	if (Temp&MS_RLSD_ON) {
		853	Status\|=LS_DCD;
		854	}
		855	}
		856	UNLOCK_MUTEX();
		857	return Status;
		858	}
		859
		860	/*!
		861	\fn void Win_QextSerialPort::setTimeout(ulong sec, ulong millisec);
		862	Sets the read and write timeouts for the port to sec seconds and millisec milliseconds.
		863	*/
		864	void Win_QextSerialPort::setTimeout(ulong sec, ulong millisec) {
		865	LOCK_MUTEX();
		866	Settings.Timeout_Sec=sec;
		867	Settings.Timeout_Millisec=millisec;
		868	if(isOpen()) {
		869	Win_CommTimeouts.ReadIntervalTimeout = sec*1000+millisec;
		870	Win_CommTimeouts.ReadTotalTimeoutMultiplier = sec*1000+millisec;
		871	Win_CommTimeouts.ReadTotalTimeoutConstant = 0;
		872	Win_CommTimeouts.WriteTotalTimeoutMultiplier = sec*1000+millisec;
		873	Win_CommTimeouts.WriteTotalTimeoutConstant = 0;
		874	SetCommTimeouts(Win_Handle, &Win_CommTimeouts);
		875	}
		876	UNLOCK_MUTEX();
		877	}

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