1 |
#include <unistd.h> |
2 |
#include <fcntl.h> |
3 |
#include <termios.h> |
4 |
#include "rdesktop.h" |
5 |
|
6 |
#define FILE_DEVICE_SERIAL_PORT 0x1b |
7 |
|
8 |
#define SERIAL_SET_BAUD_RATE 1 |
9 |
#define SERIAL_SET_QUEUE_SIZE 2 |
10 |
#define SERIAL_SET_LINE_CONTROL 3 |
11 |
#define SERIAL_SET_BREAK_ON 4 |
12 |
#define SERIAL_SET_BREAK_OFF 5 |
13 |
#define SERIAL_IMMEDIATE_CHAR 6 |
14 |
#define SERIAL_SET_TIMEOUTS 7 |
15 |
#define SERIAL_GET_TIMEOUTS 8 |
16 |
#define SERIAL_SET_DTR 9 |
17 |
#define SERIAL_CLR_DTR 10 |
18 |
#define SERIAL_RESET_DEVICE 11 |
19 |
#define SERIAL_SET_RTS 12 |
20 |
#define SERIAL_CLR_RTS 13 |
21 |
#define SERIAL_SET_XOFF 14 |
22 |
#define SERIAL_SET_XON 15 |
23 |
#define SERIAL_GET_WAIT_MASK 16 |
24 |
#define SERIAL_SET_WAIT_MASK 17 |
25 |
#define SERIAL_WAIT_ON_MASK 18 |
26 |
#define SERIAL_PURGE 19 |
27 |
#define SERIAL_GET_BAUD_RATE 20 |
28 |
#define SERIAL_GET_LINE_CONTROL 21 |
29 |
#define SERIAL_GET_CHARS 22 |
30 |
#define SERIAL_SET_CHARS 23 |
31 |
#define SERIAL_GET_HANDFLOW 24 |
32 |
#define SERIAL_SET_HANDFLOW 25 |
33 |
#define SERIAL_GET_MODEMSTATUS 26 |
34 |
#define SERIAL_GET_COMMSTATUS 27 |
35 |
#define SERIAL_XOFF_COUNTER 28 |
36 |
#define SERIAL_GET_PROPERTIES 29 |
37 |
#define SERIAL_GET_DTRRTS 30 |
38 |
#define SERIAL_LSRMST_INSERT 31 |
39 |
#define SERIAL_CONFIG_SIZE 32 |
40 |
#define SERIAL_GET_COMMCONFIG 33 |
41 |
#define SERIAL_SET_COMMCONFIG 34 |
42 |
#define SERIAL_GET_STATS 35 |
43 |
#define SERIAL_CLEAR_STATS 36 |
44 |
#define SERIAL_GET_MODEM_CONTROL 37 |
45 |
#define SERIAL_SET_MODEM_CONTROL 38 |
46 |
#define SERIAL_SET_FIFO_CONTROL 39 |
47 |
|
48 |
#define STOP_BITS_1 0 |
49 |
#define STOP_BITS_2 2 |
50 |
|
51 |
#define NO_PARITY 0 |
52 |
#define ODD_PARITY 1 |
53 |
#define EVEN_PARITY 2 |
54 |
|
55 |
extern RDPDR_DEVICE g_rdpdr_device[]; |
56 |
|
57 |
int serial_fd; |
58 |
struct termios termios; |
59 |
|
60 |
int dtr; |
61 |
uint32 baud_rate; |
62 |
uint32 queue_in_size, queue_out_size; |
63 |
uint32 wait_mask; |
64 |
uint8 stop_bits, parity, word_length; |
65 |
|
66 |
SERIAL_DEVICE |
67 |
*get_serial_info(HANDLE handle) |
68 |
{ |
69 |
int index; |
70 |
|
71 |
for (index = 0; index < RDPDR_MAX_DEVICES; index++) |
72 |
{ |
73 |
if (handle == g_rdpdr_device[index].handle) |
74 |
return (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
75 |
} |
76 |
return NULL; |
77 |
} |
78 |
|
79 |
BOOL |
80 |
get_termios(SERIAL_DEVICE *pser_inf, HANDLE serial_fd) |
81 |
{ |
82 |
speed_t speed; |
83 |
struct termios *ptermios; |
84 |
|
85 |
ptermios = pser_inf->ptermios; |
86 |
|
87 |
if (tcgetattr(serial_fd, ptermios) == -1) |
88 |
return False; |
89 |
|
90 |
speed = cfgetispeed(ptermios); |
91 |
switch (speed) |
92 |
{ |
93 |
#ifdef B75 |
94 |
case B75: pser_inf->baud_rate = 75; break; |
95 |
#endif |
96 |
#ifdef B110 |
97 |
case B110: pser_inf->baud_rate = 110; break; |
98 |
#endif |
99 |
#ifdef B134 |
100 |
case B134: pser_inf->baud_rate = 134; break; |
101 |
#endif |
102 |
#ifdef B150 |
103 |
case B150: pser_inf->baud_rate = 150; break; |
104 |
#endif |
105 |
#ifdef B300 |
106 |
case B300: pser_inf->baud_rate = 300; break; |
107 |
#endif |
108 |
#ifdef B600 |
109 |
case B600: pser_inf->baud_rate = 600; break; |
110 |
#endif |
111 |
#ifdef B1200 |
112 |
case B1200: pser_inf->baud_rate = 1200; break; |
113 |
#endif |
114 |
#ifdef B1800 |
115 |
case B1800: pser_inf->baud_rate = 1800; break; |
116 |
#endif |
117 |
#ifdef B2400 |
118 |
case B2400: pser_inf->baud_rate = 2400; break; |
119 |
#endif |
120 |
#ifdef B4800 |
121 |
case B4800: pser_inf->baud_rate = 4800; break; |
122 |
#endif |
123 |
#ifdef B9600 |
124 |
case B9600: pser_inf->baud_rate = 9600; break; |
125 |
#endif |
126 |
#ifdef B19200 |
127 |
case B19200: pser_inf->baud_rate = 19200; break; |
128 |
#endif |
129 |
#ifdef B38400 |
130 |
case B38400: pser_inf->baud_rate = 38400; break; |
131 |
#endif |
132 |
#ifdef B57600 |
133 |
case B57600: pser_inf->baud_rate = 57600; break; |
134 |
#endif |
135 |
#ifdef B115200 |
136 |
case B115200: pser_inf->baud_rate = 115200; break; |
137 |
#endif |
138 |
default: pser_inf->baud_rate = 0; break; |
139 |
} |
140 |
|
141 |
speed = cfgetospeed(ptermios); |
142 |
pser_inf->dtr = (speed == B0) ? 0 : 1; |
143 |
|
144 |
pser_inf->stop_bits = (ptermios->c_cflag & CSTOPB) ? STOP_BITS_2 : STOP_BITS_1; |
145 |
pser_inf->parity = (ptermios->c_cflag & PARENB) ? ((ptermios->c_cflag & PARODD) ? ODD_PARITY : EVEN_PARITY) : NO_PARITY; |
146 |
switch (ptermios->c_cflag & CSIZE) |
147 |
{ |
148 |
case CS5: pser_inf->word_length = 5; break; |
149 |
case CS6: pser_inf->word_length = 6; break; |
150 |
case CS7: pser_inf->word_length = 7; break; |
151 |
default: pser_inf->word_length = 8; break; |
152 |
} |
153 |
|
154 |
return True; |
155 |
} |
156 |
|
157 |
static void |
158 |
set_termios(void) |
159 |
{ |
160 |
speed_t speed; |
161 |
|
162 |
switch (baud_rate) |
163 |
{ |
164 |
#ifdef B75 |
165 |
case 75: speed = B75;break; |
166 |
#endif |
167 |
#ifdef B110 |
168 |
case 110: speed = B110;break; |
169 |
#endif |
170 |
#ifdef B134 |
171 |
case 134: speed = B134;break; |
172 |
#endif |
173 |
#ifdef B150 |
174 |
case 150: speed = B150;break; |
175 |
#endif |
176 |
#ifdef B300 |
177 |
case 300: speed = B300;break; |
178 |
#endif |
179 |
#ifdef B600 |
180 |
case 600: speed = B600;break; |
181 |
#endif |
182 |
#ifdef B1200 |
183 |
case 1200: speed = B1200;break; |
184 |
#endif |
185 |
#ifdef B1800 |
186 |
case 1800: speed = B1800;break; |
187 |
#endif |
188 |
#ifdef B2400 |
189 |
case 2400: speed = B2400;break; |
190 |
#endif |
191 |
#ifdef B4800 |
192 |
case 4800: speed = B4800;break; |
193 |
#endif |
194 |
#ifdef B9600 |
195 |
case 9600: speed = B9600;break; |
196 |
#endif |
197 |
#ifdef B19200 |
198 |
case 19200: speed = B19200;break; |
199 |
#endif |
200 |
#ifdef B38400 |
201 |
case 38400: speed = B38400;break; |
202 |
#endif |
203 |
#ifdef B57600 |
204 |
case 57600: speed = B57600;break; |
205 |
#endif |
206 |
#ifdef B115200 |
207 |
case 115200: speed = B115200;break; |
208 |
#endif |
209 |
default: speed = B0;break; |
210 |
} |
211 |
|
212 |
/* on systems with separate ispeed and ospeed, we can remember the speed |
213 |
in ispeed while changing DTR with ospeed */ |
214 |
cfsetispeed(&termios, speed); |
215 |
cfsetospeed(&termios, dtr ? speed : 0); |
216 |
|
217 |
termios.c_cflag &= ~(CSTOPB | PARENB | PARODD | CSIZE); |
218 |
switch (stop_bits) |
219 |
{ |
220 |
case STOP_BITS_2: |
221 |
termios.c_cflag |= CSTOPB; |
222 |
break; |
223 |
} |
224 |
switch (parity) |
225 |
{ |
226 |
case EVEN_PARITY: |
227 |
termios.c_cflag |= PARENB; |
228 |
break; |
229 |
case ODD_PARITY: |
230 |
termios.c_cflag |= PARENB | PARODD; |
231 |
break; |
232 |
} |
233 |
switch (word_length) |
234 |
{ |
235 |
case 5: |
236 |
termios.c_cflag |= CS5; |
237 |
break; |
238 |
case 6: |
239 |
termios.c_cflag |= CS6; |
240 |
break; |
241 |
case 7: |
242 |
termios.c_cflag |= CS7; |
243 |
break; |
244 |
default: |
245 |
termios.c_cflag |= CS8; |
246 |
break; |
247 |
} |
248 |
|
249 |
tcsetattr(serial_fd, TCSANOW, &termios); |
250 |
} |
251 |
|
252 |
/* Enumeration of devices from rdesktop.c */ |
253 |
/* returns numer of units found and initialized. */ |
254 |
/* optarg looks like ':com1=/dev/ttyS0' */ |
255 |
/* when it arrives to this function. */ |
256 |
/* windev u*dev baud, parity, stop bits, wordlength */ |
257 |
/* :com1=/dev/ttyS0:9600,0|1|2,0|2,5|6|7|8:dtr */ |
258 |
int |
259 |
serial_enum_devices(int *id, char* optarg) |
260 |
{ |
261 |
SERIAL_DEVICE* pser_inf; |
262 |
|
263 |
int argcount=0; |
264 |
char* pos = optarg; |
265 |
char* pos2; |
266 |
char* pos3; |
267 |
|
268 |
if(*id<RDPDR_MAX_DEVICES){ |
269 |
// Init data structures for device |
270 |
pser_inf = (SERIAL_DEVICE *) xmalloc(sizeof(SERIAL_DEVICE)); |
271 |
pser_inf->ptermios = (struct termios *) xmalloc(sizeof(struct termios)); |
272 |
pser_inf->pold_termios = (struct termios *) xmalloc(sizeof(struct termios)); |
273 |
|
274 |
// skip the first colon |
275 |
optarg++; |
276 |
while( (pos = next_arg( optarg, ':')) ){ |
277 |
|
278 |
switch(argcount){ |
279 |
/* com1=/dev/ttyS0 */ |
280 |
case 0: |
281 |
pos2 = next_arg(optarg,'='); |
282 |
if( !pos2 || *pos2 == (char)0x00 ){ |
283 |
error("-r comport arguments should look like: -r comport:com1=/dev/ttyS0\n"); |
284 |
return 0; |
285 |
} |
286 |
/* optarg = com1, pos2 = /dev/ttyS0 */ |
287 |
strcpy(g_rdpdr_device[*id].name,optarg); |
288 |
|
289 |
toupper(g_rdpdr_device[*id].name); |
290 |
|
291 |
g_rdpdr_device[*id].local_path = xmalloc( strlen(pos2) + 1 ); |
292 |
strcpy(g_rdpdr_device[*id].local_path,pos2); |
293 |
break; |
294 |
/* 9600,0|1|2,O|2,5|6|7|8 */ |
295 |
/* TODO: values should be set in serial_create()... ??? */ |
296 |
case 1: |
297 |
pos2 = next_arg(optarg,','); |
298 |
/*optarg=9600*/ |
299 |
pser_inf->baud_rate = atoi(optarg); |
300 |
if( !pos2 || *pos2 == (char)0x00 ) |
301 |
break; |
302 |
pos3 = next_arg(pos2,','); |
303 |
/* pos2 = 0|1|2 */ |
304 |
pser_inf->parity = atoi(pos2); |
305 |
/* pos3 = 0|2,5|6|7|8*/ |
306 |
pos2 = next_arg(pos3,','); |
307 |
if( !pos3 || *pos3 == (char)0x00 ) |
308 |
break; |
309 |
pser_inf->stop_bits = atoi(pos3); |
310 |
/* pos2 = 5|6|7|8 */ |
311 |
if( !pos2 || *pos2 == (char)0x00 ) |
312 |
break; |
313 |
pser_inf->word_length = atoi(pos2); |
314 |
break; |
315 |
default: |
316 |
if( (*optarg != (char)0x00) && (strcmp( optarg, "dtr" ) == 0) ){ |
317 |
pser_inf->dtr = 1; |
318 |
} |
319 |
/* TODO: add more switches here, like xon, xoff. they will be separated by colon |
320 |
if( (*optarg != (char)0x00) && (strcmp( optarg, "xon" ) == 0) ){ |
321 |
} |
322 |
*/ |
323 |
break; |
324 |
} |
325 |
argcount++; |
326 |
optarg=pos; |
327 |
} |
328 |
|
329 |
printf("SERIAL %s to %s", g_rdpdr_device[*id].name, g_rdpdr_device[*id].local_path ); |
330 |
if( pser_inf->baud_rate != 0 ){ |
331 |
printf(" with baud: %u, parity: %u, stop bits: %u word length: %u", pser_inf->baud_rate, pser_inf->parity, pser_inf->stop_bits, pser_inf->word_length ); |
332 |
if( pser_inf->dtr ) |
333 |
printf( " dtr set\n"); |
334 |
else |
335 |
printf( "\n" ); |
336 |
}else |
337 |
printf("\n"); |
338 |
|
339 |
// set device type |
340 |
g_rdpdr_device[*id].device_type = DEVICE_TYPE_SERIAL; |
341 |
g_rdpdr_device[*id].pdevice_data = (void *) pser_inf; |
342 |
(*id)++; |
343 |
|
344 |
return 1; |
345 |
} |
346 |
return 0; |
347 |
} |
348 |
|
349 |
NTSTATUS |
350 |
serial_create(uint32 device_id, uint32 access, uint32 share_mode, uint32 disposition, uint32 flags_and_attributes, char *filename, HANDLE *handle) |
351 |
{ |
352 |
HANDLE serial_fd; |
353 |
SERIAL_DEVICE *pser_inf; |
354 |
struct termios *ptermios; |
355 |
SERIAL_DEVICE tmp_inf; |
356 |
|
357 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[device_id].pdevice_data; |
358 |
ptermios = pser_inf->ptermios; |
359 |
serial_fd = open(g_rdpdr_device[device_id].local_path, O_RDWR | O_NOCTTY); |
360 |
|
361 |
if (serial_fd == -1) |
362 |
return STATUS_ACCESS_DENIED; |
363 |
|
364 |
// before we clog the user inserted args store them locally |
365 |
// |
366 |
memcpy(&tmp_inf,pser_inf, sizeof(pser_inf) ); |
367 |
|
368 |
if (!get_termios(pser_inf, serial_fd)) |
369 |
return STATUS_ACCESS_DENIED; |
370 |
|
371 |
// Store handle for later use |
372 |
g_rdpdr_device[device_id].handle = serial_fd; |
373 |
tcgetattr(serial_fd, pser_inf->pold_termios); // Backup original settings |
374 |
|
375 |
// Initial configuration. |
376 |
bzero(ptermios, sizeof(ptermios)); |
377 |
ptermios->c_cflag = B9600 | CRTSCTS | CS8 | CLOCAL | CREAD; |
378 |
ptermios->c_iflag = IGNPAR; |
379 |
ptermios->c_oflag = 0; |
380 |
ptermios->c_lflag = 0; //non-canonical, no echo |
381 |
ptermios->c_cc[VTIME] = 0; |
382 |
tcsetattr(serial_fd, TCSANOW, ptermios); |
383 |
|
384 |
// overload with user settings |
385 |
// -- if there are any |
386 |
if( tmp_inf.baud_rate != 0 ){ |
387 |
dtr = tmp_inf.dtr; |
388 |
baud_rate = tmp_inf.baud_rate; |
389 |
parity = tmp_inf.parity; |
390 |
stop_bits = tmp_inf.stop_bits; |
391 |
word_length = tmp_inf.word_length; |
392 |
set_termios(); |
393 |
} |
394 |
|
395 |
*handle = serial_fd; |
396 |
return STATUS_SUCCESS; |
397 |
} |
398 |
|
399 |
static NTSTATUS |
400 |
serial_close(HANDLE handle) |
401 |
{ |
402 |
close(serial_fd); |
403 |
return STATUS_SUCCESS; |
404 |
} |
405 |
|
406 |
NTSTATUS |
407 |
serial_read(HANDLE handle, uint8 *data, uint32 length, uint32 offset, uint32 *result) |
408 |
{ |
409 |
long timeout; |
410 |
SERIAL_DEVICE *pser_inf; |
411 |
struct termios *ptermios; |
412 |
|
413 |
timeout = 0; |
414 |
pser_inf = get_serial_info(handle); |
415 |
ptermios = pser_inf->ptermios; |
416 |
|
417 |
// Set timeouts kind of like the windows serial timeout parameters. Multiply timeout |
418 |
// with requested read size |
419 |
if (pser_inf->read_total_timeout_multiplier | pser_inf->read_total_timeout_constant) |
420 |
{ |
421 |
timeout = (pser_inf->read_total_timeout_multiplier * length + pser_inf->read_total_timeout_constant + 99) / 100; |
422 |
} |
423 |
else if (pser_inf->read_interval_timeout) |
424 |
{ |
425 |
timeout = (pser_inf->read_interval_timeout * length + 99) / 100; |
426 |
} |
427 |
|
428 |
// If a timeout is set, do a blocking read, which times out after some time. |
429 |
// It will make rdesktop less responsive, but it will improve serial performance, by not |
430 |
// reading one character at a time. |
431 |
if (timeout == 0) |
432 |
{ |
433 |
ptermios->c_cc[VTIME] = 0; |
434 |
ptermios->c_cc[VMIN] = 0; |
435 |
} |
436 |
else |
437 |
{ |
438 |
ptermios->c_cc[VTIME] = timeout; |
439 |
ptermios->c_cc[VMIN] = 1; |
440 |
} |
441 |
tcsetattr(handle, TCSANOW, ptermios); |
442 |
|
443 |
*result = read(handle, data, length); |
444 |
return STATUS_SUCCESS; |
445 |
} |
446 |
|
447 |
NTSTATUS |
448 |
serial_write(HANDLE handle, uint8 *data, uint32 length, uint32 offset, uint32 *result) |
449 |
{ |
450 |
*result = write(handle, data, length); |
451 |
return STATUS_SUCCESS; |
452 |
} |
453 |
|
454 |
static NTSTATUS |
455 |
serial_device_control(HANDLE handle, uint32 request, STREAM in, STREAM out) |
456 |
{ |
457 |
uint32 result; |
458 |
uint8 immediate; |
459 |
|
460 |
if ((request >> 16) != FILE_DEVICE_SERIAL_PORT) |
461 |
return STATUS_INVALID_PARAMETER; |
462 |
|
463 |
/* extract operation */ |
464 |
request >>= 2; |
465 |
request &= 0xfff; |
466 |
|
467 |
printf("SERIAL IOCTL %d\n", request); |
468 |
|
469 |
switch (request) |
470 |
{ |
471 |
case SERIAL_SET_BAUD_RATE: |
472 |
in_uint32_le(in, baud_rate); |
473 |
set_termios(); |
474 |
break; |
475 |
case SERIAL_GET_BAUD_RATE: |
476 |
out_uint32_le(out, baud_rate); |
477 |
break; |
478 |
case SERIAL_SET_QUEUE_SIZE: |
479 |
in_uint32_le(in, queue_in_size); |
480 |
in_uint32_le(in, queue_out_size); |
481 |
break; |
482 |
case SERIAL_SET_LINE_CONTROL: |
483 |
in_uint8(in, stop_bits); |
484 |
in_uint8(in, parity); |
485 |
in_uint8(in, word_length); |
486 |
set_termios(); |
487 |
break; |
488 |
case SERIAL_GET_LINE_CONTROL: |
489 |
out_uint8(out, stop_bits); |
490 |
out_uint8(out, parity); |
491 |
out_uint8(out, word_length); |
492 |
break; |
493 |
case SERIAL_IMMEDIATE_CHAR: |
494 |
in_uint8(in, immediate); |
495 |
serial_write(handle, &immediate, 1, 0, &result); |
496 |
break; |
497 |
case SERIAL_CONFIG_SIZE: |
498 |
out_uint32_le(out, 0); |
499 |
break; |
500 |
case SERIAL_GET_CHARS: |
501 |
out_uint8s(out, 6); |
502 |
break; |
503 |
case SERIAL_SET_CHARS: |
504 |
in_uint8s(in, 6); |
505 |
break; |
506 |
case SERIAL_GET_HANDFLOW: |
507 |
out_uint32_le(out, 0); |
508 |
out_uint32_le(out, 3); /* Xon/Xoff */ |
509 |
out_uint32_le(out, 0); |
510 |
out_uint32_le(out, 0); |
511 |
break; |
512 |
case SERIAL_SET_HANDFLOW: |
513 |
in_uint8s(in, 16); |
514 |
break; |
515 |
case SERIAL_SET_TIMEOUTS: |
516 |
in_uint8s(in, 20); |
517 |
break; |
518 |
case SERIAL_GET_TIMEOUTS: |
519 |
out_uint8s(out, 20); |
520 |
break; |
521 |
case SERIAL_GET_WAIT_MASK: |
522 |
out_uint32(out, wait_mask); |
523 |
break; |
524 |
case SERIAL_SET_WAIT_MASK: |
525 |
in_uint32(in, wait_mask); |
526 |
break; |
527 |
case SERIAL_SET_DTR: |
528 |
dtr = 1; |
529 |
set_termios(); |
530 |
break; |
531 |
case SERIAL_CLR_DTR: |
532 |
dtr = 0; |
533 |
set_termios(); |
534 |
break; |
535 |
#if 0 |
536 |
case SERIAL_WAIT_ON_MASK: |
537 |
/* XXX implement me */ |
538 |
break; |
539 |
case SERIAL_SET_BREAK_ON: |
540 |
tcsendbreak(serial_fd, 0); |
541 |
break; |
542 |
case SERIAL_PURGE: |
543 |
|
544 |
printf("SERIAL_PURGE\n"); |
545 |
in_uint32(in, purge_mask); |
546 |
if (purge_mask & 0x04) flush_mask |= TCOFLUSH; |
547 |
if (purge_mask & 0x08) flush_mask |= TCIFLUSH; |
548 |
if (flush_mask != 0) tcflush(handle, flush_mask); |
549 |
if (purge_mask & 0x01) rdpdr_abort_io(handle, 4, STATUS_CANCELLED); |
550 |
if (purge_mask & 0x02) rdpdr_abort_io(handle, 3, STATUS_CANCELLED); |
551 |
break; |
552 |
|
553 |
case SERIAL_RESET_DEVICE: |
554 |
case SERIAL_SET_BREAK_OFF: |
555 |
case SERIAL_SET_RTS: |
556 |
case SERIAL_CLR_RTS: |
557 |
case SERIAL_SET_XOFF: |
558 |
case SERIAL_SET_XON: |
559 |
/* ignore */ |
560 |
break; |
561 |
#endif |
562 |
|
563 |
default: |
564 |
unimpl("SERIAL IOCTL %d\n", request); |
565 |
return STATUS_INVALID_PARAMETER; |
566 |
} |
567 |
|
568 |
return STATUS_SUCCESS; |
569 |
} |
570 |
|
571 |
/* Read timeout for a given file descripter (device) when adding fd's to select() */ |
572 |
BOOL |
573 |
serial_get_timeout(uint32 handle, uint32 length, uint32 *timeout, uint32 *itv_timeout) |
574 |
{ |
575 |
int index; |
576 |
SERIAL_DEVICE *pser_inf; |
577 |
|
578 |
index = get_device_index(handle); |
579 |
|
580 |
if (g_rdpdr_device[index].device_type != DEVICE_TYPE_SERIAL) |
581 |
{ |
582 |
return False; |
583 |
} |
584 |
|
585 |
pser_inf = (SERIAL_DEVICE *) g_rdpdr_device[index].pdevice_data; |
586 |
|
587 |
*timeout = pser_inf->read_total_timeout_multiplier * length + pser_inf->read_total_timeout_constant; |
588 |
*itv_timeout = pser_inf->read_interval_timeout; |
589 |
return True; |
590 |
} |
591 |
|
592 |
DEVICE_FNS serial_fns = { |
593 |
serial_create, |
594 |
serial_close, |
595 |
serial_read, |
596 |
serial_write, |
597 |
serial_device_control |
598 |
}; |