VirtualBox

source: vbox/trunk/src/VBox/RDP/client-1.8.3/serial.c@ 55121

最後變更 在這個檔案從55121是 55121,由 vboxsync 提交於 10 年 前

rdesktop 1.8.3 unmodified
  • 屬性 svn:eol-style 設為 native
  • 屬性 svn:keywords 設為 Author Date Id Revision
檔案大小: 26.6 KB
行 
1/* -*- c-basic-offset: 8 -*-
2 rdesktop: A Remote Desktop Protocol client.
3
4 Copyright (C) Matthew Chapman <matthewc.unsw.edu.au> 1999-2008
5
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
18*/
19#include <unistd.h>
20#include <fcntl.h>
21#include <termios.h>
22#include <strings.h>
23#include <sys/ioctl.h>
24
25#ifdef HAVE_SYS_MODEM_H
26#include <sys/modem.h>
27#endif
28#ifdef HAVE_SYS_FILIO_H
29#include <sys/filio.h>
30#endif
31#ifdef HAVE_SYS_STRTIO_H
32#include <sys/strtio.h>
33#endif
34
35#include "rdesktop.h"
36
37#ifdef WITH_DEBUG_SERIAL
38#define DEBUG_SERIAL(args) printf args;
39#else
40#define DEBUG_SERIAL(args)
41#endif
42
43#define FILE_DEVICE_SERIAL_PORT 0x1b
44
45#define SERIAL_SET_BAUD_RATE 1
46#define SERIAL_SET_QUEUE_SIZE 2
47#define SERIAL_SET_LINE_CONTROL 3
48#define SERIAL_SET_BREAK_ON 4
49#define SERIAL_SET_BREAK_OFF 5
50#define SERIAL_IMMEDIATE_CHAR 6
51#define SERIAL_SET_TIMEOUTS 7
52#define SERIAL_GET_TIMEOUTS 8
53#define SERIAL_SET_DTR 9
54#define SERIAL_CLR_DTR 10
55#define SERIAL_RESET_DEVICE 11
56#define SERIAL_SET_RTS 12
57#define SERIAL_CLR_RTS 13
58#define SERIAL_SET_XOFF 14
59#define SERIAL_SET_XON 15
60#define SERIAL_GET_WAIT_MASK 16
61#define SERIAL_SET_WAIT_MASK 17
62#define SERIAL_WAIT_ON_MASK 18
63#define SERIAL_PURGE 19
64#define SERIAL_GET_BAUD_RATE 20
65#define SERIAL_GET_LINE_CONTROL 21
66#define SERIAL_GET_CHARS 22
67#define SERIAL_SET_CHARS 23
68#define SERIAL_GET_HANDFLOW 24
69#define SERIAL_SET_HANDFLOW 25
70#define SERIAL_GET_MODEMSTATUS 26
71#define SERIAL_GET_COMMSTATUS 27
72#define SERIAL_XOFF_COUNTER 28
73#define SERIAL_GET_PROPERTIES 29
74#define SERIAL_GET_DTRRTS 30
75#define SERIAL_LSRMST_INSERT 31
76#define SERIAL_CONFIG_SIZE 32
77#define SERIAL_GET_COMMCONFIG 33
78#define SERIAL_SET_COMMCONFIG 34
79#define SERIAL_GET_STATS 35
80#define SERIAL_CLEAR_STATS 36
81#define SERIAL_GET_MODEM_CONTROL 37
82#define SERIAL_SET_MODEM_CONTROL 38
83#define SERIAL_SET_FIFO_CONTROL 39
84
85#define STOP_BITS_1 0
86#define STOP_BITS_2 2
87
88#define NO_PARITY 0
89#define ODD_PARITY 1
90#define EVEN_PARITY 2
91
92#define SERIAL_PURGE_TXABORT 0x00000001
93#define SERIAL_PURGE_RXABORT 0x00000002
94#define SERIAL_PURGE_TXCLEAR 0x00000004
95#define SERIAL_PURGE_RXCLEAR 0x00000008
96
97/* SERIAL_WAIT_ON_MASK */
98#define SERIAL_EV_RXCHAR 0x0001 /* Any Character received */
99#define SERIAL_EV_RXFLAG 0x0002 /* Received certain character */
100#define SERIAL_EV_TXEMPTY 0x0004 /* Transmitt Queue Empty */
101#define SERIAL_EV_CTS 0x0008 /* CTS changed state */
102#define SERIAL_EV_DSR 0x0010 /* DSR changed state */
103#define SERIAL_EV_RLSD 0x0020 /* RLSD changed state */
104#define SERIAL_EV_BREAK 0x0040 /* BREAK received */
105#define SERIAL_EV_ERR 0x0080 /* Line status error occurred */
106#define SERIAL_EV_RING 0x0100 /* Ring signal detected */
107#define SERIAL_EV_PERR 0x0200 /* Printer error occured */
108#define SERIAL_EV_RX80FULL 0x0400 /* Receive buffer is 80 percent full */
109#define SERIAL_EV_EVENT1 0x0800 /* Provider specific event 1 */
110#define SERIAL_EV_EVENT2 0x1000 /* Provider specific event 2 */
111
112/* Modem Status */
113#define SERIAL_MS_DTR 0x01
114#define SERIAL_MS_RTS 0x02
115#define SERIAL_MS_CTS 0x10
116#define SERIAL_MS_DSR 0x20
117#define SERIAL_MS_RNG 0x40
118#define SERIAL_MS_CAR 0x80
119
120/* Handflow */
121#define SERIAL_DTR_CONTROL 0x01
122#define SERIAL_CTS_HANDSHAKE 0x08
123#define SERIAL_ERROR_ABORT 0x80000000
124
125#define SERIAL_XON_HANDSHAKE 0x01
126#define SERIAL_XOFF_HANDSHAKE 0x02
127#define SERIAL_DSR_SENSITIVITY 0x40
128
129#define SERIAL_CHAR_EOF 0
130#define SERIAL_CHAR_ERROR 1
131#define SERIAL_CHAR_BREAK 2
132#define SERIAL_CHAR_EVENT 3
133#define SERIAL_CHAR_XON 4
134#define SERIAL_CHAR_XOFF 5
135
136#ifndef CRTSCTS
137#define CRTSCTS 0
138#endif
139
140/* FIONREAD should really do the same thing as TIOCINQ, where it is
141 * not available */
142#if !defined(TIOCINQ) && defined(FIONREAD)
143#define TIOCINQ FIONREAD
144#endif
145#if !defined(TIOCOUTQ) && defined(FIONWRITE)
146#define TIOCOUTQ FIONWRITE
147#endif
148
149extern RDPDR_DEVICE g_rdpdr_device[];
150
151static SERIAL_DEVICE *
152get_serial_info(RD_NTHANDLE handle)
153{
154 int index;
155
156 for (index = 0; index < RDPDR_MAX_DEVICES; index++)
157 {
158 if (handle == g_rdpdr_device[index].handle)
159 return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
160 }
161 return NULL;
162}
163
164static RD_BOOL
165get_termios(SERIAL_DEVICE * pser_inf, RD_NTHANDLE serial_fd)
166{
167 speed_t speed;
168 struct termios *ptermios;
169
170 ptermios = pser_inf->ptermios;
171
172 if (tcgetattr(serial_fd, ptermios) == -1)
173 return False;
174
175 speed = cfgetispeed(ptermios);
176 switch (speed)
177 {
178#ifdef B75
179 case B75:
180 pser_inf->baud_rate = 75;
181 break;
182#endif
183#ifdef B110
184 case B110:
185 pser_inf->baud_rate = 110;
186 break;
187#endif
188#ifdef B134
189 case B134:
190 pser_inf->baud_rate = 134;
191 break;
192#endif
193#ifdef B150
194 case B150:
195 pser_inf->baud_rate = 150;
196 break;
197#endif
198#ifdef B300
199 case B300:
200 pser_inf->baud_rate = 300;
201 break;
202#endif
203#ifdef B600
204 case B600:
205 pser_inf->baud_rate = 600;
206 break;
207#endif
208#ifdef B1200
209 case B1200:
210 pser_inf->baud_rate = 1200;
211 break;
212#endif
213#ifdef B1800
214 case B1800:
215 pser_inf->baud_rate = 1800;
216 break;
217#endif
218#ifdef B2400
219 case B2400:
220 pser_inf->baud_rate = 2400;
221 break;
222#endif
223#ifdef B4800
224 case B4800:
225 pser_inf->baud_rate = 4800;
226 break;
227#endif
228#ifdef B9600
229 case B9600:
230 pser_inf->baud_rate = 9600;
231 break;
232#endif
233#ifdef B19200
234 case B19200:
235 pser_inf->baud_rate = 19200;
236 break;
237#endif
238#ifdef B38400
239 case B38400:
240 pser_inf->baud_rate = 38400;
241 break;
242#endif
243#ifdef B57600
244 case B57600:
245 pser_inf->baud_rate = 57600;
246 break;
247#endif
248#ifdef B115200
249 case B115200:
250 pser_inf->baud_rate = 115200;
251 break;
252#endif
253#ifdef B230400
254 case B230400:
255 pser_inf->baud_rate = 230400;
256 break;
257#endif
258#ifdef B460800
259 case B460800:
260 pser_inf->baud_rate = 460800;
261 break;
262#endif
263 default:
264 pser_inf->baud_rate = 9600;
265 break;
266 }
267
268 speed = cfgetospeed(ptermios);
269 pser_inf->dtr = (speed == B0) ? 0 : 1;
270
271 pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1;
272 pser_inf->parity =
273 (ptermios->c_cflag & PARENB) ? ((ptermios->c_cflag & PARODD) ? ODD_PARITY :
274 EVEN_PARITY) : NO_PARITY;
275 switch (ptermios->c_cflag & CSIZE)
276 {
277 case CS5:
278 pser_inf->word_length = 5;
279 break;
280 case CS6:
281 pser_inf->word_length = 6;
282 break;
283 case CS7:
284 pser_inf->word_length = 7;
285 break;
286 default:
287 pser_inf->word_length = 8;
288 break;
289 }
290
291 if (ptermios->c_cflag & CRTSCTS)
292 {
293 pser_inf->control = SERIAL_DTR_CONTROL | SERIAL_CTS_HANDSHAKE | SERIAL_ERROR_ABORT;
294 }
295 else
296 {
297 pser_inf->control = SERIAL_DTR_CONTROL | SERIAL_ERROR_ABORT;
298 }
299
300 pser_inf->xonoff = SERIAL_DSR_SENSITIVITY;
301 if (ptermios->c_iflag & IXON)
302 pser_inf->xonoff |= SERIAL_XON_HANDSHAKE;
303
304 if (ptermios->c_iflag & IXOFF)
305 pser_inf->xonoff |= SERIAL_XOFF_HANDSHAKE;
306
307 pser_inf->chars[SERIAL_CHAR_XON] = ptermios->c_cc[VSTART];
308 pser_inf->chars[SERIAL_CHAR_XOFF] = ptermios->c_cc[VSTOP];
309 pser_inf->chars[SERIAL_CHAR_EOF] = ptermios->c_cc[VEOF];
310 pser_inf->chars[SERIAL_CHAR_BREAK] = ptermios->c_cc[VINTR];
311 pser_inf->chars[SERIAL_CHAR_ERROR] = ptermios->c_cc[VKILL];
312
313 return True;
314}
315
316static void
317set_termios(SERIAL_DEVICE * pser_inf, RD_NTHANDLE serial_fd)
318{
319 speed_t speed;
320
321 struct termios *ptermios;
322
323 ptermios = pser_inf->ptermios;
324
325
326 switch (pser_inf->baud_rate)
327 {
328#ifdef B75
329 case 75:
330 speed = B75;
331 break;
332#endif
333#ifdef B110
334 case 110:
335 speed = B110;
336 break;
337#endif
338#ifdef B134
339 case 134:
340 speed = B134;
341 break;
342#endif
343#ifdef B150
344 case 150:
345 speed = B150;
346 break;
347#endif
348#ifdef B300
349 case 300:
350 speed = B300;
351 break;
352#endif
353#ifdef B600
354 case 600:
355 speed = B600;
356 break;
357#endif
358#ifdef B1200
359 case 1200:
360 speed = B1200;
361 break;
362#endif
363#ifdef B1800
364 case 1800:
365 speed = B1800;
366 break;
367#endif
368#ifdef B2400
369 case 2400:
370 speed = B2400;
371 break;
372#endif
373#ifdef B4800
374 case 4800:
375 speed = B4800;
376 break;
377#endif
378#ifdef B9600
379 case 9600:
380 speed = B9600;
381 break;
382#endif
383#ifdef B19200
384 case 19200:
385 speed = B19200;
386 break;
387#endif
388#ifdef B38400
389 case 38400:
390 speed = B38400;
391 break;
392#endif
393#ifdef B57600
394 case 57600:
395 speed = B57600;
396 break;
397#endif
398#ifdef B115200
399 case 115200:
400 speed = B115200;
401 break;
402#endif
403#ifdef B230400
404 case 230400:
405 speed = B115200;
406 break;
407#endif
408#ifdef B460800
409 case 460800:
410 speed = B115200;
411 break;
412#endif
413 default:
414 speed = B9600;
415 break;
416 }
417
418#ifdef CBAUD
419 ptermios->c_cflag &= ~CBAUD;
420 ptermios->c_cflag |= speed;
421#else
422 /* on systems with separate ispeed and ospeed, we can remember the speed
423 in ispeed while changing DTR with ospeed */
424 cfsetispeed(pser_inf->ptermios, speed);
425 cfsetospeed(pser_inf->ptermios, pser_inf->dtr ? speed : 0);
426#endif
427
428 ptermios->c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE | CRTSCTS);
429 switch (pser_inf->stop_bits)
430 {
431 case STOP_BITS_2:
432 ptermios->c_cflag |= CSTOPB;
433 break;
434 default:
435 ptermios->c_cflag &= ~CSTOPB;
436 break;
437 }
438
439 switch (pser_inf->parity)
440 {
441 case EVEN_PARITY:
442 ptermios->c_cflag |= PARENB;
443 break;
444 case ODD_PARITY:
445 ptermios->c_cflag |= PARENB | PARODD;
446 break;
447 case NO_PARITY:
448 ptermios->c_cflag &= ~(PARENB | PARODD);
449 break;
450 }
451
452 switch (pser_inf->word_length)
453 {
454 case 5:
455 ptermios->c_cflag |= CS5;
456 break;
457 case 6:
458 ptermios->c_cflag |= CS6;
459 break;
460 case 7:
461 ptermios->c_cflag |= CS7;
462 break;
463 default:
464 ptermios->c_cflag |= CS8;
465 break;
466 }
467
468#if 0
469 if (pser_inf->rts)
470 ptermios->c_cflag |= CRTSCTS;
471 else
472 ptermios->c_cflag &= ~CRTSCTS;
473#endif
474
475 if (pser_inf->control & SERIAL_CTS_HANDSHAKE)
476 {
477 ptermios->c_cflag |= CRTSCTS;
478 }
479 else
480 {
481 ptermios->c_cflag &= ~CRTSCTS;
482 }
483
484
485 if (pser_inf->xonoff & SERIAL_XON_HANDSHAKE)
486 {
487 ptermios->c_iflag |= IXON | IMAXBEL;
488 }
489 if (pser_inf->xonoff & SERIAL_XOFF_HANDSHAKE)
490 {
491 ptermios->c_iflag |= IXOFF | IMAXBEL;
492 }
493
494 if ((pser_inf->xonoff & (SERIAL_XOFF_HANDSHAKE | SERIAL_XON_HANDSHAKE)) == 0)
495 {
496 ptermios->c_iflag &= ~IXON;
497 ptermios->c_iflag &= ~IXOFF;
498 }
499
500 ptermios->c_cc[VSTART] = pser_inf->chars[SERIAL_CHAR_XON];
501 ptermios->c_cc[VSTOP] = pser_inf->chars[SERIAL_CHAR_XOFF];
502 ptermios->c_cc[VEOF] = pser_inf->chars[SERIAL_CHAR_EOF];
503 ptermios->c_cc[VINTR] = pser_inf->chars[SERIAL_CHAR_BREAK];
504 ptermios->c_cc[VKILL] = pser_inf->chars[SERIAL_CHAR_ERROR];
505
506 tcsetattr(serial_fd, TCSANOW, ptermios);
507}
508
509/* Enumeration of devices from rdesktop.c */
510/* returns numer of units found and initialized. */
511/* optarg looks like ':com1=/dev/ttyS0' */
512/* when it arrives to this function. */
513/* :com1=/dev/ttyS0,com2=/dev/ttyS1 */
514int
515serial_enum_devices(uint32 * id, char *optarg)
516{
517 SERIAL_DEVICE *pser_inf;
518
519 char *pos = optarg;
520 char *pos2;
521 int count = 0;
522
523 /* skip the first colon */
524 optarg++;
525 while ((pos = next_arg(optarg, ',')) && *id < RDPDR_MAX_DEVICES)
526 {
527 /* Init data structures for device */
528 pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE));
529 pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios));
530 memset(pser_inf->ptermios, 0, sizeof(struct termios));
531 pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios));
532 memset(pser_inf->pold_termios, 0, sizeof(struct termios));
533
534 pos2 = next_arg(optarg, '=');
535 strcpy(g_rdpdr_device[*id].name, optarg);
536
537 toupper_str(g_rdpdr_device[*id].name);
538
539 g_rdpdr_device[*id].local_path = xmalloc(strlen(pos2) + 1);
540 strcpy(g_rdpdr_device[*id].local_path, pos2);
541 printf("SERIAL %s to %s\n", g_rdpdr_device[*id].name,
542 g_rdpdr_device[*id].local_path);
543 /* set device type */
544 g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL;
545 g_rdpdr_device[*id].pdevice_data = (void *) pser_inf;
546 count++;
547 (*id)++;
548
549 optarg = pos;
550 }
551 return count;
552}
553
554static RD_NTSTATUS
555serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition,
556 uint32 flags_and_attributes, char *filename, RD_NTHANDLE * handle)
557{
558 RD_NTHANDLE serial_fd;
559 SERIAL_DEVICE *pser_inf;
560 struct termios *ptermios;
561
562 pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data;
563 ptermios = pser_inf->ptermios;
564 serial_fd = open(g_rdpdr_device[device_id].local_path, O_RDWR | O_NOCTTY | O_NONBLOCK);
565
566 if (serial_fd == -1)
567 {
568 perror("open");
569 return RD_STATUS_ACCESS_DENIED;
570 }
571
572 if (!get_termios(pser_inf, serial_fd))
573 {
574 printf("INFO: SERIAL %s access denied\n", g_rdpdr_device[device_id].name);
575 fflush(stdout);
576 return RD_STATUS_ACCESS_DENIED;
577 }
578
579 /* Store handle for later use */
580 g_rdpdr_device[device_id].handle = serial_fd;
581
582 /* some sane information */
583 DEBUG_SERIAL(("INFO: SERIAL %s to %s\nINFO: speed %u baud, stop bits %u, parity %u, word length %u bits, dtr %u, rts %u\n", g_rdpdr_device[device_id].name, g_rdpdr_device[device_id].local_path, pser_inf->baud_rate, pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length, pser_inf->dtr, pser_inf->rts));
584
585 pser_inf->ptermios->c_iflag &=
586 ~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
587 pser_inf->ptermios->c_oflag &= ~OPOST;
588 pser_inf->ptermios->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
589 pser_inf->ptermios->c_cflag &= ~(CSIZE | PARENB);
590 pser_inf->ptermios->c_cflag |= CS8;
591
592 tcsetattr(serial_fd, TCSANOW, pser_inf->ptermios);
593
594 pser_inf->event_txempty = 0;
595 pser_inf->event_cts = 0;
596 pser_inf->event_dsr = 0;
597 pser_inf->event_rlsd = 0;
598 pser_inf->event_pending = 0;
599
600 *handle = serial_fd;
601
602 /* all read and writes should be non blocking */
603 if (fcntl(*handle, F_SETFL, O_NONBLOCK) == -1)
604 perror("fcntl");
605
606 pser_inf->read_total_timeout_constant = 5;
607
608 return RD_STATUS_SUCCESS;
609}
610
611static RD_NTSTATUS
612serial_close(RD_NTHANDLE handle)
613{
614 int i = get_device_index(handle);
615 if (i >= 0)
616 g_rdpdr_device[i].handle = 0;
617
618 rdpdr_abort_io(handle, 0, RD_STATUS_TIMEOUT);
619 close(handle);
620 return RD_STATUS_SUCCESS;
621}
622
623static RD_NTSTATUS
624serial_read(RD_NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
625{
626 long timeout;
627 SERIAL_DEVICE *pser_inf;
628 struct termios *ptermios;
629#ifdef WITH_DEBUG_SERIAL
630 int bytes_inqueue;
631#endif
632
633
634 timeout = 90;
635 pser_inf = get_serial_info(handle);
636 ptermios = pser_inf->ptermios;
637
638 /* Set timeouts kind of like the windows serial timeout parameters. Multiply timeout
639 with requested read size */
640 if (pser_inf->read_total_timeout_multiplier | pser_inf->read_total_timeout_constant)
641 {
642 timeout =
643 (pser_inf->read_total_timeout_multiplier * length +
644 pser_inf->read_total_timeout_constant + 99) / 100;
645 }
646 else if (pser_inf->read_interval_timeout)
647 {
648 timeout = (pser_inf->read_interval_timeout * length + 99) / 100;
649 }
650
651 /* If a timeout is set, do a blocking read, which times out after some time.
652 It will make rdesktop less responsive, but it will improve serial performance, by not
653 reading one character at a time. */
654 if (timeout == 0)
655 {
656 ptermios->c_cc[VTIME] = 0;
657 ptermios->c_cc[VMIN] = 0;
658 }
659 else
660 {
661 ptermios->c_cc[VTIME] = timeout;
662 ptermios->c_cc[VMIN] = 1;
663 }
664 tcsetattr(handle, TCSANOW, ptermios);
665
666#if defined(WITH_DEBUG_SERIAL) && defined(TIOCINQ)
667 ioctl(handle, TIOCINQ, &bytes_inqueue);
668 DEBUG_SERIAL(("serial_read inqueue: %d expected %d\n", bytes_inqueue, length));
669#endif
670
671 *result = read(handle, data, length);
672
673#ifdef WITH_DEBUG_SERIAL
674 DEBUG_SERIAL(("serial_read Bytes %d\n", *result));
675 if (*result > 0)
676 hexdump(data, *result);
677#endif
678
679 return RD_STATUS_SUCCESS;
680}
681
682static RD_NTSTATUS
683serial_write(RD_NTHANDLE handle, uint8 * data, uint32 length, uint32 offset, uint32 * result)
684{
685 SERIAL_DEVICE *pser_inf;
686
687 pser_inf = get_serial_info(handle);
688
689 *result = write(handle, data, length);
690
691 if (*result > 0)
692 pser_inf->event_txempty = *result;
693
694 DEBUG_SERIAL(("serial_write length %d, offset %d result %d\n", length, offset, *result));
695
696 return RD_STATUS_SUCCESS;
697}
698
699static RD_NTSTATUS
700serial_device_control(RD_NTHANDLE handle, uint32 request, STREAM in, STREAM out)
701{
702 int purge_mask;
703 uint32 result, modemstate;
704 uint8 immediate;
705 SERIAL_DEVICE *pser_inf;
706 struct termios *ptermios;
707
708 if ((request >> 16) != FILE_DEVICE_SERIAL_PORT)
709 return RD_STATUS_INVALID_PARAMETER;
710
711 pser_inf = get_serial_info(handle);
712 ptermios = pser_inf->ptermios;
713
714 /* extract operation */
715 request >>= 2;
716 request &= 0xfff;
717
718 switch (request)
719 {
720 case SERIAL_SET_BAUD_RATE:
721 in_uint32_le(in, pser_inf->baud_rate);
722 set_termios(pser_inf, handle);
723 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BAUD_RATE %d\n",
724 pser_inf->baud_rate));
725 break;
726 case SERIAL_GET_BAUD_RATE:
727 out_uint32_le(out, pser_inf->baud_rate);
728 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_BAUD_RATE %d\n",
729 pser_inf->baud_rate));
730 break;
731 case SERIAL_SET_QUEUE_SIZE:
732 in_uint32_le(in, pser_inf->queue_in_size);
733 in_uint32_le(in, pser_inf->queue_out_size);
734 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_QUEUE_SIZE in %d out %d\n",
735 pser_inf->queue_in_size, pser_inf->queue_out_size));
736 break;
737 case SERIAL_SET_LINE_CONTROL:
738 in_uint8(in, pser_inf->stop_bits);
739 in_uint8(in, pser_inf->parity);
740 in_uint8(in, pser_inf->word_length);
741 set_termios(pser_inf, handle);
742 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_LINE_CONTROL stop %d parity %d word %d\n", pser_inf->stop_bits, pser_inf->parity, pser_inf->word_length));
743 break;
744 case SERIAL_GET_LINE_CONTROL:
745 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_LINE_CONTROL\n"));
746 out_uint8(out, pser_inf->stop_bits);
747 out_uint8(out, pser_inf->parity);
748 out_uint8(out, pser_inf->word_length);
749 break;
750 case SERIAL_IMMEDIATE_CHAR:
751 DEBUG_SERIAL(("serial_ioctl -> SERIAL_IMMEDIATE_CHAR\n"));
752 in_uint8(in, immediate);
753 serial_write(handle, &immediate, 1, 0, &result);
754 break;
755 case SERIAL_CONFIG_SIZE:
756 DEBUG_SERIAL(("serial_ioctl -> SERIAL_CONFIG_SIZE\n"));
757 out_uint32_le(out, 0);
758 break;
759 case SERIAL_GET_CHARS:
760 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_CHARS\n"));
761 out_uint8a(out, pser_inf->chars, 6);
762 break;
763 case SERIAL_SET_CHARS:
764 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_CHARS\n"));
765 in_uint8a(in, pser_inf->chars, 6);
766#ifdef WITH_DEBUG_SERIAL
767 hexdump(pser_inf->chars, 6);
768#endif
769 set_termios(pser_inf, handle);
770 break;
771 case SERIAL_GET_HANDFLOW:
772 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_HANDFLOW\n"));
773 get_termios(pser_inf, handle);
774 out_uint32_le(out, pser_inf->control);
775 out_uint32_le(out, pser_inf->xonoff); /* Xon/Xoff */
776 out_uint32_le(out, pser_inf->onlimit);
777 out_uint32_le(out, pser_inf->offlimit);
778 break;
779 case SERIAL_SET_HANDFLOW:
780 in_uint32_le(in, pser_inf->control);
781 in_uint32_le(in, pser_inf->xonoff);
782 in_uint32_le(in, pser_inf->onlimit);
783 in_uint32_le(in, pser_inf->offlimit);
784 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_HANDFLOW %x %x %x %x\n",
785 pser_inf->control, pser_inf->xonoff, pser_inf->onlimit,
786 pser_inf->onlimit));
787 set_termios(pser_inf, handle);
788 break;
789 case SERIAL_SET_TIMEOUTS:
790 in_uint32(in, pser_inf->read_interval_timeout);
791 in_uint32(in, pser_inf->read_total_timeout_multiplier);
792 in_uint32(in, pser_inf->read_total_timeout_constant);
793 in_uint32(in, pser_inf->write_total_timeout_multiplier);
794 in_uint32(in, pser_inf->write_total_timeout_constant);
795 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_TIMEOUTS read timeout %d %d %d\n",
796 pser_inf->read_interval_timeout,
797 pser_inf->read_total_timeout_multiplier,
798 pser_inf->read_total_timeout_constant));
799 break;
800 case SERIAL_GET_TIMEOUTS:
801 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_TIMEOUTS read timeout %d %d %d\n",
802 pser_inf->read_interval_timeout,
803 pser_inf->read_total_timeout_multiplier,
804 pser_inf->read_total_timeout_constant));
805
806 out_uint32(out, pser_inf->read_interval_timeout);
807 out_uint32(out, pser_inf->read_total_timeout_multiplier);
808 out_uint32(out, pser_inf->read_total_timeout_constant);
809 out_uint32(out, pser_inf->write_total_timeout_multiplier);
810 out_uint32(out, pser_inf->write_total_timeout_constant);
811 break;
812 case SERIAL_GET_WAIT_MASK:
813 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_WAIT_MASK %X\n",
814 pser_inf->wait_mask));
815 out_uint32(out, pser_inf->wait_mask);
816 break;
817 case SERIAL_SET_WAIT_MASK:
818 in_uint32(in, pser_inf->wait_mask);
819 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_WAIT_MASK %X\n",
820 pser_inf->wait_mask));
821 break;
822 case SERIAL_SET_DTR:
823 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_DTR\n"));
824 ioctl(handle, TIOCMGET, &result);
825 result |= TIOCM_DTR;
826 ioctl(handle, TIOCMSET, &result);
827 pser_inf->dtr = 1;
828 break;
829 case SERIAL_CLR_DTR:
830 DEBUG_SERIAL(("serial_ioctl -> SERIAL_CLR_DTR\n"));
831 ioctl(handle, TIOCMGET, &result);
832 result &= ~TIOCM_DTR;
833 ioctl(handle, TIOCMSET, &result);
834 pser_inf->dtr = 0;
835 break;
836 case SERIAL_SET_RTS:
837 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_RTS\n"));
838 ioctl(handle, TIOCMGET, &result);
839 result |= TIOCM_RTS;
840 ioctl(handle, TIOCMSET, &result);
841 pser_inf->rts = 1;
842 break;
843 case SERIAL_CLR_RTS:
844 DEBUG_SERIAL(("serial_ioctl -> SERIAL_CLR_RTS\n"));
845 ioctl(handle, TIOCMGET, &result);
846 result &= ~TIOCM_RTS;
847 ioctl(handle, TIOCMSET, &result);
848 pser_inf->rts = 0;
849 break;
850 case SERIAL_GET_MODEMSTATUS:
851 modemstate = 0;
852#ifdef TIOCMGET
853 ioctl(handle, TIOCMGET, &result);
854 if (result & TIOCM_CTS)
855 modemstate |= SERIAL_MS_CTS;
856 if (result & TIOCM_DSR)
857 modemstate |= SERIAL_MS_DSR;
858 if (result & TIOCM_RNG)
859 modemstate |= SERIAL_MS_RNG;
860 if (result & TIOCM_CAR)
861 modemstate |= SERIAL_MS_CAR;
862 if (result & TIOCM_DTR)
863 modemstate |= SERIAL_MS_DTR;
864 if (result & TIOCM_RTS)
865 modemstate |= SERIAL_MS_RTS;
866#endif
867 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_MODEMSTATUS %X\n", modemstate));
868 out_uint32_le(out, modemstate);
869 break;
870 case SERIAL_GET_COMMSTATUS:
871 out_uint32_le(out, 0); /* Errors */
872 out_uint32_le(out, 0); /* Hold reasons */
873
874 result = 0;
875#ifdef TIOCINQ
876 ioctl(handle, TIOCINQ, &result);
877#endif
878 out_uint32_le(out, result); /* Amount in in queue */
879 if (result)
880 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_COMMSTATUS in queue %d\n",
881 result));
882
883 result = 0;
884#ifdef TIOCOUTQ
885 ioctl(handle, TIOCOUTQ, &result);
886#endif
887 out_uint32_le(out, result); /* Amount in out queue */
888 if (result)
889 DEBUG_SERIAL(("serial_ioctl -> SERIAL_GET_COMMSTATUS out queue %d\n", result));
890
891 out_uint8(out, 0); /* EofReceived */
892 out_uint8(out, 0); /* WaitForImmediate */
893 break;
894 case SERIAL_PURGE:
895 in_uint32(in, purge_mask);
896 DEBUG_SERIAL(("serial_ioctl -> SERIAL_PURGE purge_mask %X\n", purge_mask));
897 if ((purge_mask & SERIAL_PURGE_TXCLEAR)
898 && (purge_mask & SERIAL_PURGE_RXCLEAR))
899 tcflush(handle, TCIOFLUSH);
900 else if (purge_mask & SERIAL_PURGE_TXCLEAR)
901 tcflush(handle, TCOFLUSH);
902 else if (purge_mask & SERIAL_PURGE_RXCLEAR)
903 tcflush(handle, TCIFLUSH);
904 if (purge_mask & SERIAL_PURGE_TXABORT)
905 rdpdr_abort_io(handle, 4, RD_STATUS_CANCELLED);
906 if (purge_mask & SERIAL_PURGE_RXABORT)
907 rdpdr_abort_io(handle, 3, RD_STATUS_CANCELLED);
908 break;
909 case SERIAL_WAIT_ON_MASK:
910 DEBUG_SERIAL(("serial_ioctl -> SERIAL_WAIT_ON_MASK %X\n",
911 pser_inf->wait_mask));
912 pser_inf->event_pending = 1;
913 if (serial_get_event(handle, &result))
914 {
915 DEBUG_SERIAL(("WAIT end event = %x\n", result));
916 out_uint32_le(out, result);
917 break;
918 }
919 return RD_STATUS_PENDING;
920 break;
921 case SERIAL_SET_BREAK_ON:
922 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BREAK_ON\n"));
923 tcsendbreak(handle, 0);
924 break;
925 case SERIAL_RESET_DEVICE:
926 DEBUG_SERIAL(("serial_ioctl -> SERIAL_RESET_DEVICE\n"));
927 break;
928 case SERIAL_SET_BREAK_OFF:
929 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_BREAK_OFF\n"));
930 break;
931 case SERIAL_SET_XOFF:
932 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_XOFF\n"));
933 break;
934 case SERIAL_SET_XON:
935 DEBUG_SERIAL(("serial_ioctl -> SERIAL_SET_XON\n"));
936 tcflow(handle, TCION);
937 break;
938 default:
939 unimpl("SERIAL IOCTL %d\n", request);
940 return RD_STATUS_INVALID_PARAMETER;
941 }
942
943 return RD_STATUS_SUCCESS;
944}
945
946RD_BOOL
947serial_get_event(RD_NTHANDLE handle, uint32 * result)
948{
949 int index;
950 SERIAL_DEVICE *pser_inf;
951 int bytes;
952 RD_BOOL ret = False;
953
954 *result = 0;
955 index = get_device_index(handle);
956 if (index < 0)
957 return False;
958
959#ifdef TIOCINQ
960 pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
961
962 ioctl(handle, TIOCINQ, &bytes);
963
964 if (bytes > 0)
965 {
966 DEBUG_SERIAL(("serial_get_event Bytes %d\n", bytes));
967 if (bytes > pser_inf->event_rlsd)
968 {
969 pser_inf->event_rlsd = bytes;
970 if (pser_inf->wait_mask & SERIAL_EV_RLSD)
971 {
972 DEBUG_SERIAL(("Event -> SERIAL_EV_RLSD \n"));
973 *result |= SERIAL_EV_RLSD;
974 ret = True;
975 }
976
977 }
978
979 if ((bytes > 1) && (pser_inf->wait_mask & SERIAL_EV_RXFLAG))
980 {
981 DEBUG_SERIAL(("Event -> SERIAL_EV_RXFLAG Bytes %d\n", bytes));
982 *result |= SERIAL_EV_RXFLAG;
983 ret = True;
984 }
985 if ((pser_inf->wait_mask & SERIAL_EV_RXCHAR))
986 {
987 DEBUG_SERIAL(("Event -> SERIAL_EV_RXCHAR Bytes %d\n", bytes));
988 *result |= SERIAL_EV_RXCHAR;
989 ret = True;
990 }
991
992 }
993 else
994 {
995 pser_inf->event_rlsd = 0;
996 }
997#endif
998
999#ifdef TIOCOUTQ
1000 ioctl(handle, TIOCOUTQ, &bytes);
1001 if ((bytes == 0)
1002 && (pser_inf->event_txempty > 0) && (pser_inf->wait_mask & SERIAL_EV_TXEMPTY))
1003 {
1004
1005 DEBUG_SERIAL(("Event -> SERIAL_EV_TXEMPTY\n"));
1006 *result |= SERIAL_EV_TXEMPTY;
1007 ret = True;
1008 }
1009 pser_inf->event_txempty = bytes;
1010#endif
1011
1012 ioctl(handle, TIOCMGET, &bytes);
1013 if ((bytes & TIOCM_DSR) != pser_inf->event_dsr)
1014 {
1015 pser_inf->event_dsr = bytes & TIOCM_DSR;
1016 if (pser_inf->wait_mask & SERIAL_EV_DSR)
1017 {
1018 DEBUG_SERIAL(("event -> SERIAL_EV_DSR %s\n",
1019 (bytes & TIOCM_DSR) ? "ON" : "OFF"));
1020 *result |= SERIAL_EV_DSR;
1021 ret = True;
1022 }
1023 }
1024
1025 if ((bytes & TIOCM_CTS) != pser_inf->event_cts)
1026 {
1027 pser_inf->event_cts = bytes & TIOCM_CTS;
1028 if (pser_inf->wait_mask & SERIAL_EV_CTS)
1029 {
1030 DEBUG_SERIAL((" EVENT-> SERIAL_EV_CTS %s\n",
1031 (bytes & TIOCM_CTS) ? "ON" : "OFF"));
1032 *result |= SERIAL_EV_CTS;
1033 ret = True;
1034 }
1035 }
1036
1037 if (ret)
1038 pser_inf->event_pending = 0;
1039
1040 return ret;
1041}
1042
1043/* Read timeout for a given file descripter (device) when adding fd's to select() */
1044RD_BOOL
1045serial_get_timeout(RD_NTHANDLE handle, uint32 length, uint32 * timeout, uint32 * itv_timeout)
1046{
1047 int index;
1048 SERIAL_DEVICE *pser_inf;
1049
1050 index = get_device_index(handle);
1051 if (index < 0)
1052 return True;
1053
1054 if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL)
1055 {
1056 return False;
1057 }
1058
1059 pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data;
1060
1061 *timeout =
1062 pser_inf->read_total_timeout_multiplier * length +
1063 pser_inf->read_total_timeout_constant;
1064 *itv_timeout = pser_inf->read_interval_timeout;
1065 return True;
1066}
1067
1068DEVICE_FNS serial_fns = {
1069 serial_create,
1070 serial_close,
1071 serial_read,
1072 serial_write,
1073 serial_device_control
1074};
注意: 瀏覽 TracBrowser 來幫助您使用儲存庫瀏覽器

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette