source: ntrip/trunk/BNC/src/serial/win_qextserialport.cpp@ 5786

Last change on this file since 5786 was 1317, checked in by mervart, 16 years ago

* empty log message *
File size: 28.8 KB
Line 
1/*!
2\class Win_QextSerialPort
3\version 1.0.0
4\author Stefan Sander
5
6A cross-platform serial port class.
7This class encapsulates the Windows portion of QextSerialPort. The user will be notified of
8errors and possible portability conflicts at run-time by default - this behavior can be turned
9off by defining _TTY_NOWARN_ (to turn off all warnings) or _TTY_NOWARN_PORT_ (to turn off
10portability warnings) in the project. Note that defining _TTY_NOWARN_ also defines
11_TTY_NOWARN_PORT_.
12
13\note
14On Windows NT/2000/XP this class uses Win32 serial port functions by default. The user may
15select POSIX behavior under NT, 2000, or XP ONLY by defining _TTY_POSIX_ in the project. I can
16make 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()
25Default constructor. Note that the name of the device used by a Win_QextSerialPort constructed
26with this constructor will be determined by #defined constants, or lack thereof - the default
27behavior is the same as _TTY_LINUX_. Possible naming conventions and their associated constants
28are:
29
30\verbatim
31
32Constant 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
44This constructor associates the object with the first port on the system, e.g. COM1 for Windows
45platforms. See the other constructor if you need a port other than the first.
46*/
47Win_QextSerialPort::Win_QextSerialPort():QextSerialBase() {
48 Win_Handle=INVALID_HANDLE_VALUE;
49}
50
51/*!Win_QextSerialPort::Win_QextSerialPort(const Win_QextSerialPort&)
52Copy constructor.
53*/
54Win_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)
71Constructs a serial port attached to the port specified by devName.
72devName is the name of the device, which is windowsystem-specific,
73e.g."COM2" or "/dev/ttyS0".
74*/
75Win_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)
81Constructs a port with default name and specified settings.
82*/
83Win_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)
95Constructs a port with specified name and settings.
96*/
97Win_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()
110Standard destructor.
111*/
112Win_QextSerialPort::~Win_QextSerialPort() {
113 if (isOpen()) {
114 close();
115 }
116}
117
118/*!
119\fn Win_QextSerialPort& Win_QextSerialPort::operator=(const Win_QextSerialPort& s)
120overrides the = operator
121*/
122Win_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)
139Opens a serial port. Note that this function does not specify which device to open. If you need
140to open a device by name, see Win_QextSerialPort::open(const char*). This function has no effect
141if the port associated with the class is already open. The port is also configured to the current
142settings, as stored in the Settings structure.
143*/
144bool 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()
184Closes a serial port. This function has no effect if the serial port associated with the class
185is not currently open.
186*/
187void 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()
196Flushes all pending I/O to the serial port. This function has no effect if the serial port
197associated with the class is not currently open.
198*/
199void 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
209This function will return the number of bytes waiting in the receive queue of the serial port.
210It is included primarily to provide a complete QIODevice interface, and will not record errors
211in the lastErr member (because it is const). This function is also not thread-safe - in
212multithreading situations, use Win_QextSerialPort::bytesAvailable() instead.
213*/
214qint64 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()
225Returns the number of bytes waiting in the port's receive queue. This function will return 0 if
226the port is not currently open, or -1 on error. Error information can be retrieved by calling
227Win_QextSerialPort::getLastError().
228*/
229qint64 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)
250Translates a system-specific error code to a QextSerialPort error code. Used internally.
251*/
252void 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)
281Reads a block of data from the serial port. This function will read at most maxlen bytes from
282the serial port and place them in the buffer pointed to by data. Return value is the number of
283bytes actually read, or -1 on error.
284
285\warning before calling this function ensure that serial port associated with this class
286is currently open (use isOpen() function to check if port is open).
287*/
288qint64 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)
312Writes a block of data to the serial port. This function will write len bytes
313from the buffer pointed to by data to the serial port. Return value is the number
314of bytes actually written, or -1 on error.
315
316\warning before calling this function ensure that serial port associated with this class
317is currently open (use isOpen() function to check if port is open).
318*/
319qint64 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)
339This function is included to implement the full QIODevice interface, and currently has no
340purpose within this class. This function is meaningless on an unbuffered device and currently
341only prints a warning message to that effect.
342*/
343void 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)
351Sets 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*/
358void 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)
398Sets 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*/
407void 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)
452Sets 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
461This 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*/
470void 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)
533Sets 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
541This 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*/
549void 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)
597Sets the baud rate of the serial port. Note that not all rates are applicable on
598all platforms. The following table shows translations of the various baud rate
599constants on Windows(including NT/2000) and POSIX platforms. Speeds marked with an *
600are 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*/
629void 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)
785Sets DTR line to the requested state (high by default). This function will have no effect if
786the port associated with the class is not currently open.
787*/
788void 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)
803Sets RTS line to the requested state (high by default). This function will have no effect if
804the port associated with the class is not currently open.
805*/
806void 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)
821returns the line status as stored by the port function. This function will retrieve the states
822of the following lines: DCD, CTS, DSR, and RI. On POSIX systems, the following additional lines
823can be monitored: DTR, RTS, Secondary TXD, and Secondary RXD. The value returned is an unsigned
824long with specific bits indicating which lines are high. The following constants should be used
825to examine the states of individual lines:
826
827\verbatim
828Mask Line
829------ ----
830LS_CTS CTS
831LS_DSR DSR
832LS_DCD DCD
833LS_RI RI
834\endverbatim
835
836This function will return 0 if the port associated with the class is not currently open.
837*/
838ulong 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);
862Sets the read and write timeouts for the port to sec seconds and millisec milliseconds.
863*/
864void 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}
Note: See TracBrowser for help on using the repository browser.