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comparison spandsp-0.0.6pre17/tests/fax_tester.c @ 4:26cd8f1ef0b1

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import spandsp-0.0.6pre17
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 15:50:58 +0200
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3:c6c5a16ce2f2 4:26cd8f1ef0b1
1 /*
2 * SpanDSP - a series of DSP components for telephony
3 *
4 * faxtester_tests.c
5 *
6 * Written by Steve Underwood <steveu@coppice.org>
7 *
8 * Copyright (C) 2008 Steve Underwood
9 *
10 * All rights reserved.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Lesser General Public License version 2.1,
14 * as published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * $Id: fax_tester.c,v 1.23 2009/11/02 13:25:20 steveu Exp $
26 */
27
28 /*! \file */
29
30 #if defined(HAVE_CONFIG_H)
31 #include <config.h>
32 #endif
33
34 #include <inttypes.h>
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <string.h>
38 #if defined(HAVE_TGMATH_H)
39 #include <tgmath.h>
40 #endif
41 #if defined(HAVE_MATH_H)
42 #include <math.h>
43 #endif
44 #include "floating_fudge.h"
45 #include <assert.h>
46 #include <fcntl.h>
47 #include <time.h>
48 #include <unistd.h>
49
50 #if defined(HAVE_LIBXML_XMLMEMORY_H)
51 #include <libxml/xmlmemory.h>
52 #endif
53 #if defined(HAVE_LIBXML_PARSER_H)
54 #include <libxml/parser.h>
55 #endif
56 #if defined(HAVE_LIBXML_XINCLUDE_H)
57 #include <libxml/xinclude.h>
58 #endif
59
60 //#if defined(WITH_SPANDSP_INTERNALS)
61 #define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
62 //#endif
63
64 #include "spandsp.h"
65
66 #include "fax_tester.h"
67
68 #define HDLC_FRAMING_OK_THRESHOLD 5
69
70 static void timer_update(faxtester_state_t *s, int len)
71 {
72 s->timer += len;
73 if (s->timer > s->timeout)
74 {
75 s->timeout = 0x7FFFFFFFFFFFFFFFLL;
76 if (s->front_end_step_timeout_handler)
77 s->front_end_step_timeout_handler(s, s->front_end_step_timeout_user_data);
78 }
79 }
80 /*- End of function --------------------------------------------------------*/
81
82 static void front_end_step_complete(faxtester_state_t *s)
83 {
84 if (s->front_end_step_complete_handler)
85 s->front_end_step_complete_handler(s, s->front_end_step_complete_user_data);
86 }
87 /*- End of function --------------------------------------------------------*/
88
89 void faxtester_send_hdlc_flags(faxtester_state_t *s, int flags)
90 {
91 hdlc_tx_flags(&(s->modems.hdlc_tx), flags);
92 }
93 /*- End of function --------------------------------------------------------*/
94
95 void faxtester_send_hdlc_msg(faxtester_state_t *s, const uint8_t *msg, int len, int crc_ok)
96 {
97 hdlc_tx_frame(&(s->modems.hdlc_tx), msg, len);
98 if (!crc_ok)
99 hdlc_tx_corrupt_frame(&(s->modems.hdlc_tx));
100 }
101 /*- End of function --------------------------------------------------------*/
102
103 static void hdlc_underflow_handler(void *user_data)
104 {
105 faxtester_state_t *s;
106 uint8_t buf[400];
107
108 s = (faxtester_state_t *) user_data;
109
110 if (s->image_buffer)
111 {
112 /* We are sending an ECM image */
113 if (s->image_ptr < s->image_len)
114 {
115 buf[0] = 0xFF;
116 buf[1] = 0x03;
117 buf[2] = 0x06;
118 buf[3] = s->image_ptr/s->ecm_frame_size;
119 memcpy(buf + 4, &s->image_buffer[s->image_ptr], s->ecm_frame_size);
120 hdlc_tx_frame(&(s->modems.hdlc_tx), buf, 4 + s->ecm_frame_size);
121 if (s->corrupt_crc >= 0 && s->corrupt_crc == s->image_ptr/s->ecm_frame_size)
122 hdlc_tx_corrupt_frame(&(s->modems.hdlc_tx));
123 s->image_ptr += s->ecm_frame_size;
124 return;
125 }
126 else
127 {
128 /* The actual image is over. We are sending the final RCP frames. */
129 if (s->image_bit_ptr > 2)
130 {
131 s->image_bit_ptr--;
132 buf[0] = 0xFF;
133 buf[1] = 0x03;
134 buf[2] = 0x86;
135 hdlc_tx_frame(&(s->modems.hdlc_tx), buf, 3);
136 return;
137 }
138 else
139 {
140 /* All done. */
141 s->image_buffer = NULL;
142 }
143 }
144 }
145 front_end_step_complete(s);
146 }
147 /*- End of function --------------------------------------------------------*/
148
149 static void modem_tx_status(void *user_data, int status)
150 {
151 faxtester_state_t *s;
152
153 s = (faxtester_state_t *) user_data;
154 printf("Tx status is %s (%d)\n", signal_status_to_str(status), status);
155 switch (status)
156 {
157 case SIG_STATUS_SHUTDOWN_COMPLETE:
158 front_end_step_complete(s);
159 break;
160 }
161 }
162 /*- End of function --------------------------------------------------------*/
163
164 static void tone_detected(void *user_data, int tone, int level, int delay)
165 {
166 faxtester_state_t *s;
167
168 s = (faxtester_state_t *) user_data;
169 span_log(&s->logging,
170 SPAN_LOG_FLOW,
171 "%s (%d) declared (%ddBm0)\n",
172 modem_connect_tone_to_str(tone),
173 tone,
174 level);
175 if (tone != MODEM_CONNECT_TONES_NONE)
176 {
177 s->tone_on_time = s->timer;
178 }
179 else
180 {
181 span_log(&s->logging,
182 SPAN_LOG_FLOW,
183 "Tone was on for %fs\n",
184 (float) (s->timer - s->tone_on_time)/SAMPLE_RATE + 0.55);
185 }
186 s->tone_state = tone;
187 if (tone == MODEM_CONNECT_TONES_NONE)
188 front_end_step_complete(s);
189 }
190 /*- End of function --------------------------------------------------------*/
191
192 static int non_ecm_get_bit(void *user_data)
193 {
194 faxtester_state_t *s;
195 int bit;
196
197 s = (faxtester_state_t *) user_data;
198 if (s->image_bit_ptr == 0)
199 {
200 if (s->image_ptr >= s->image_len)
201 {
202 s->image_buffer = NULL;
203 return SIG_STATUS_END_OF_DATA;
204 }
205 s->image_bit_ptr = 8;
206 s->image_ptr++;
207 }
208 s->image_bit_ptr--;
209 bit = (s->image_buffer[s->image_ptr] >> (7 - s->image_bit_ptr)) & 0x01;
210 //printf("Rx bit - %d\n", bit);
211 return bit;
212 }
213 /*- End of function --------------------------------------------------------*/
214
215 void faxtester_set_non_ecm_image_buffer(faxtester_state_t *s, const uint8_t *buf, int len)
216 {
217 s->image_ptr = 0;
218 s->image_bit_ptr = 8;
219 s->image_len = len;
220 s->image_buffer = buf;
221 }
222 /*- End of function --------------------------------------------------------*/
223
224 void faxtester_set_ecm_image_buffer(faxtester_state_t *s, const uint8_t *buf, int len, int block, int frame_size, int crc_hit)
225 {
226 int start;
227
228 start = 256*frame_size*block;
229 if (len > start + 256*frame_size)
230 len = start + 256*frame_size;
231
232 s->ecm_frame_size = frame_size;
233 s->image_ptr = start;
234 s->image_bit_ptr = 8;
235 s->image_len = len;
236 s->image_buffer = buf;
237 s->corrupt_crc = crc_hit;
238 /* Send the first frame */
239 hdlc_underflow_handler(s);
240 }
241 /*- End of function --------------------------------------------------------*/
242
243 static void non_ecm_rx_status(void *user_data, int status)
244 {
245 faxtester_state_t *s;
246
247 s = (faxtester_state_t *) user_data;
248 span_log(&s->logging, SPAN_LOG_FLOW, "Non-ECM carrier status is %s (%d)\n", signal_status_to_str(status), status);
249 switch (status)
250 {
251 case SIG_STATUS_TRAINING_FAILED:
252 s->modems.rx_trained = FALSE;
253 break;
254 case SIG_STATUS_TRAINING_SUCCEEDED:
255 /* The modem is now trained */
256 s->modems.rx_trained = TRUE;
257 break;
258 case SIG_STATUS_CARRIER_UP:
259 s->modems.rx_signal_present = TRUE;
260 break;
261 case SIG_STATUS_CARRIER_DOWN:
262 if (s->modems.rx_trained)
263 {
264 if (s->real_time_frame_handler)
265 s->real_time_frame_handler(s, s->real_time_frame_user_data, TRUE, NULL, 0);
266 }
267 s->modems.rx_signal_present = FALSE;
268 s->modems.rx_trained = FALSE;
269 break;
270 }
271 }
272 /*- End of function --------------------------------------------------------*/
273
274 static void non_ecm_put_bit(void *user_data, int bit)
275 {
276 faxtester_state_t *s;
277
278 if (bit < 0)
279 {
280 non_ecm_rx_status(user_data, bit);
281 return;
282 }
283 s = (faxtester_state_t *) user_data;
284 }
285 /*- End of function --------------------------------------------------------*/
286
287 static void hdlc_rx_status(void *user_data, int status)
288 {
289 faxtester_state_t *s;
290
291 s = (faxtester_state_t *) user_data;
292 fprintf(stderr, "HDLC carrier status is %s (%d)\n", signal_status_to_str(status), status);
293 switch (status)
294 {
295 case SIG_STATUS_TRAINING_FAILED:
296 s->modems.rx_trained = FALSE;
297 break;
298 case SIG_STATUS_TRAINING_SUCCEEDED:
299 /* The modem is now trained */
300 s->modems.rx_trained = TRUE;
301 break;
302 case SIG_STATUS_CARRIER_UP:
303 s->modems.rx_signal_present = TRUE;
304 break;
305 case SIG_STATUS_CARRIER_DOWN:
306 s->modems.rx_signal_present = FALSE;
307 s->modems.rx_trained = FALSE;
308 break;
309 }
310 }
311 /*- End of function --------------------------------------------------------*/
312
313 static void hdlc_accept(void *user_data, const uint8_t *msg, int len, int ok)
314 {
315 faxtester_state_t *s;
316
317 if (len < 0)
318 {
319 hdlc_rx_status(user_data, len);
320 return;
321 }
322 s = (faxtester_state_t *) user_data;
323 if (s->real_time_frame_handler)
324 s->real_time_frame_handler(s, s->real_time_frame_user_data, TRUE, msg, len);
325 }
326 /*- End of function --------------------------------------------------------*/
327
328 static int v17_v21_rx(void *user_data, const int16_t amp[], int len)
329 {
330 faxtester_state_t *t;
331 fax_modems_state_t *s;
332
333 t = (faxtester_state_t *) user_data;
334 s = &t->modems;
335 v17_rx(&s->v17_rx, amp, len);
336 fsk_rx(&s->v21_rx, amp, len);
337 if (s->rx_trained)
338 {
339 /* The fast modem has trained, so we no longer need to run the slow
340 one in parallel. */
341 span_log(&t->logging, SPAN_LOG_FLOW, "Switching from V.17 + V.21 to V.17 (%.2fdBm0)\n", v17_rx_signal_power(&s->v17_rx));
342 s->rx_handler = (span_rx_handler_t *) &v17_rx;
343 s->rx_user_data = &s->v17_rx;
344 }
345 return 0;
346 }
347 /*- End of function --------------------------------------------------------*/
348
349 static int v27ter_v21_rx(void *user_data, const int16_t amp[], int len)
350 {
351 faxtester_state_t *t;
352 fax_modems_state_t *s;
353
354 t = (faxtester_state_t *) user_data;
355 s = &t->modems;
356 v27ter_rx(&s->v27ter_rx, amp, len);
357 fsk_rx(&s->v21_rx, amp, len);
358 if (s->rx_trained)
359 {
360 /* The fast modem has trained, so we no longer need to run the slow
361 one in parallel. */
362 span_log(&t->logging, SPAN_LOG_FLOW, "Switching from V.27ter + V.21 to V.27ter (%.2fdBm0)\n", v27ter_rx_signal_power(&s->v27ter_rx));
363 s->rx_handler = (span_rx_handler_t *) &v27ter_rx;
364 s->rx_user_data = &s->v27ter_rx;
365 }
366 return 0;
367 }
368 /*- End of function --------------------------------------------------------*/
369
370 static int v29_v21_rx(void *user_data, const int16_t amp[], int len)
371 {
372 faxtester_state_t *t;
373 fax_modems_state_t *s;
374
375 t = (faxtester_state_t *) user_data;
376 s = &t->modems;
377 v29_rx(&s->v29_rx, amp, len);
378 fsk_rx(&s->v21_rx, amp, len);
379 if (s->rx_trained)
380 {
381 /* The fast modem has trained, so we no longer need to run the slow
382 one in parallel. */
383 span_log(&t->logging, SPAN_LOG_FLOW, "Switching from V.29 + V.21 to V.29 (%.2fdBm0)\n", v29_rx_signal_power(&s->v29_rx));
384 s->rx_handler = (span_rx_handler_t *) &v29_rx;
385 s->rx_user_data = &s->v29_rx;
386 }
387 return 0;
388 }
389 /*- End of function --------------------------------------------------------*/
390
391 int faxtester_rx(faxtester_state_t *s, int16_t *amp, int len)
392 {
393 int i;
394
395 for (i = 0; i < len; i++)
396 amp[i] = dc_restore(&(s->modems.dc_restore), amp[i]);
397 s->modems.rx_handler(s->modems.rx_user_data, amp, len);
398 timer_update(s, len);
399 if (s->wait_for_silence)
400 {
401 if (!s->modems.rx_signal_present)
402 {
403 s->wait_for_silence = FALSE;
404 front_end_step_complete(s);
405 }
406 }
407 return 0;
408 }
409 /*- End of function --------------------------------------------------------*/
410
411 int faxtester_tx(faxtester_state_t *s, int16_t *amp, int max_len)
412 {
413 int len;
414 int required_len;
415
416 required_len = max_len;
417 len = 0;
418 if (s->transmit)
419 {
420 while ((len += s->modems.tx_handler(s->modems.tx_user_data, amp + len, max_len - len)) < max_len)
421 {
422 /* Allow for a change of tx handler within a block */
423 front_end_step_complete(s);
424 if (!s->transmit)
425 {
426 if (s->modems.transmit_on_idle)
427 {
428 /* Pad to the requested length with silence */
429 memset(amp + len, 0, (max_len - len)*sizeof(int16_t));
430 len = max_len;
431 }
432 break;
433 }
434 }
435 }
436 else
437 {
438 if (s->modems.transmit_on_idle)
439 {
440 /* Pad to the requested length with silence */
441 memset(amp, 0, max_len*sizeof(int16_t));
442 len = max_len;
443 }
444 }
445 return len;
446 }
447 /*- End of function --------------------------------------------------------*/
448
449 void faxtest_set_rx_silence(faxtester_state_t *s)
450 {
451 s->wait_for_silence = TRUE;
452 }
453 /*- End of function --------------------------------------------------------*/
454
455 void faxtester_set_rx_type(void *user_data, int type, int bit_rate, int short_train, int use_hdlc)
456 {
457 faxtester_state_t *s;
458 put_bit_func_t put_bit_func;
459 void *put_bit_user_data;
460 fax_modems_state_t *t;
461 int tone;
462
463 s = (faxtester_state_t *) user_data;
464 t = &s->modems;
465 span_log(&s->logging, SPAN_LOG_FLOW, "Set rx type %d\n", type);
466 if (s->current_rx_type == type)
467 return;
468 s->current_rx_type = type;
469 if (use_hdlc)
470 {
471 put_bit_func = (put_bit_func_t) hdlc_rx_put_bit;
472 put_bit_user_data = (void *) &t->hdlc_rx;
473 hdlc_rx_init(&t->hdlc_rx, FALSE, FALSE, HDLC_FRAMING_OK_THRESHOLD, hdlc_accept, s);
474 }
475 else
476 {
477 put_bit_func = non_ecm_put_bit;
478 put_bit_user_data = (void *) s;
479 }
480 switch (type)
481 {
482 case T30_MODEM_CED:
483 case T30_MODEM_CNG:
484 if (type == T30_MODEM_CED)
485 tone = MODEM_CONNECT_TONES_FAX_CED;
486 else
487 tone = MODEM_CONNECT_TONES_FAX_CNG;
488 modem_connect_tones_rx_init(&t->connect_rx,
489 tone,
490 tone_detected,
491 (void *) s);
492 t->rx_handler = (span_rx_handler_t *) &modem_connect_tones_rx;
493 t->rx_user_data = &t->connect_rx;
494 s->tone_state = MODEM_CONNECT_TONES_NONE;
495 break;
496 case T30_MODEM_V21:
497 if (s->flush_handler)
498 s->flush_handler(s, s->flush_user_data, 3);
499 fsk_rx_init(&t->v21_rx, &preset_fsk_specs[FSK_V21CH2], FSK_FRAME_MODE_SYNC, (put_bit_func_t) hdlc_rx_put_bit, put_bit_user_data);
500 fsk_rx_signal_cutoff(&t->v21_rx, -45.5);
501 t->rx_handler = (span_rx_handler_t *) &fsk_rx;
502 t->rx_user_data = &t->v21_rx;
503 break;
504 case T30_MODEM_V27TER:
505 v27ter_rx_restart(&t->v27ter_rx, bit_rate, FALSE);
506 v27ter_rx_set_put_bit(&t->v27ter_rx, put_bit_func, put_bit_user_data);
507 t->rx_handler = (span_rx_handler_t *) &v27ter_v21_rx;
508 t->rx_user_data = s;
509 break;
510 case T30_MODEM_V29:
511 v29_rx_restart(&t->v29_rx, bit_rate, FALSE);
512 v29_rx_set_put_bit(&t->v29_rx, put_bit_func, put_bit_user_data);
513 t->rx_handler = (span_rx_handler_t *) &v29_v21_rx;
514 t->rx_user_data = s;
515 break;
516 case T30_MODEM_V17:
517 v17_rx_restart(&t->v17_rx, bit_rate, short_train);
518 v17_rx_set_put_bit(&t->v17_rx, put_bit_func, put_bit_user_data);
519 t->rx_handler = (span_rx_handler_t *) &v17_v21_rx;
520 t->rx_user_data = s;
521 break;
522 case T30_MODEM_DONE:
523 span_log(&s->logging, SPAN_LOG_FLOW, "FAX exchange complete\n");
524 default:
525 t->rx_handler = (span_rx_handler_t *) &span_dummy_rx;
526 t->rx_user_data = s;
527 break;
528 }
529 }
530 /*- End of function --------------------------------------------------------*/
531
532 void faxtester_set_tx_type(void *user_data, int type, int bit_rate, int short_train, int use_hdlc)
533 {
534 faxtester_state_t *s;
535 get_bit_func_t get_bit_func;
536 void *get_bit_user_data;
537 fax_modems_state_t *t;
538 int tone;
539
540 s = (faxtester_state_t *) user_data;
541 t = &s->modems;
542 span_log(&s->logging, SPAN_LOG_FLOW, "Set tx type %d\n", type);
543 if (s->current_tx_type == type)
544 return;
545 if (use_hdlc)
546 {
547 get_bit_func = (get_bit_func_t) hdlc_tx_get_bit;
548 get_bit_user_data = (void *) &t->hdlc_tx;
549 }
550 else
551 {
552 get_bit_func = non_ecm_get_bit;
553 get_bit_user_data = (void *) s;
554 }
555 switch (type)
556 {
557 case T30_MODEM_PAUSE:
558 silence_gen_alter(&t->silence_gen, ms_to_samples(short_train));
559 t->tx_handler = (span_tx_handler_t *) &silence_gen;
560 t->tx_user_data = &t->silence_gen;
561 s->transmit = TRUE;
562 break;
563 case T30_MODEM_CED:
564 case T30_MODEM_CNG:
565 if (type == T30_MODEM_CED)
566 tone = MODEM_CONNECT_TONES_FAX_CED;
567 else
568 tone = MODEM_CONNECT_TONES_FAX_CNG;
569 modem_connect_tones_tx_init(&t->connect_tx, tone);
570 t->tx_handler = (span_tx_handler_t *) &modem_connect_tones_tx;
571 t->tx_user_data = &t->connect_tx;
572 s->transmit = TRUE;
573 break;
574 case T30_MODEM_V21:
575 fsk_tx_init(&t->v21_tx, &preset_fsk_specs[FSK_V21CH2], get_bit_func, get_bit_user_data);
576 fsk_tx_set_modem_status_handler(&t->v21_tx, modem_tx_status, (void *) s);
577 t->tx_handler = (span_tx_handler_t *) &fsk_tx;
578 t->tx_user_data = &t->v21_tx;
579 s->transmit = TRUE;
580 break;
581 case T30_MODEM_V27TER:
582 v27ter_tx_restart(&t->v27ter_tx, bit_rate, t->use_tep);
583 v27ter_tx_set_get_bit(&t->v27ter_tx, get_bit_func, get_bit_user_data);
584 v27ter_tx_set_modem_status_handler(&t->v27ter_tx, modem_tx_status, (void *) s);
585 t->tx_handler = (span_tx_handler_t *) &v27ter_tx;
586 t->tx_user_data = &t->v27ter_tx;
587 /* For any fast modem, set 200ms of preamble flags */
588 hdlc_tx_flags(&t->hdlc_tx, bit_rate/(8*5));
589 s->transmit = TRUE;
590 break;
591 case T30_MODEM_V29:
592 v29_tx_restart(&t->v29_tx, bit_rate, t->use_tep);
593 v29_tx_set_get_bit(&t->v29_tx, get_bit_func, get_bit_user_data);
594 v29_tx_set_modem_status_handler(&t->v29_tx, modem_tx_status, (void *) s);
595 t->tx_handler = (span_tx_handler_t *) &v29_tx;
596 t->tx_user_data = &t->v29_tx;
597 /* For any fast modem, set 200ms of preamble flags */
598 hdlc_tx_flags(&t->hdlc_tx, bit_rate/(8*5));
599 s->transmit = TRUE;
600 break;
601 case T30_MODEM_V17:
602 v17_tx_restart(&t->v17_tx, bit_rate, t->use_tep, short_train);
603 v17_tx_set_get_bit(&t->v17_tx, get_bit_func, get_bit_user_data);
604 v17_tx_set_modem_status_handler(&t->v17_tx, modem_tx_status, (void *) s);
605 t->tx_handler = (span_tx_handler_t *) &v17_tx;
606 t->tx_user_data = &t->v17_tx;
607 /* For any fast modem, set 200ms of preamble flags */
608 hdlc_tx_flags(&t->hdlc_tx, bit_rate/(8*5));
609 s->transmit = TRUE;
610 break;
611 case T30_MODEM_DONE:
612 span_log(&s->logging, SPAN_LOG_FLOW, "FAX exchange complete\n");
613 /* Fall through */
614 default:
615 silence_gen_alter(&t->silence_gen, 0);
616 t->tx_handler = (span_tx_handler_t *) &silence_gen;
617 t->tx_user_data = &t->silence_gen;
618 s->transmit = FALSE;
619 break;
620 }
621 s->current_tx_type = type;
622 }
623 /*- End of function --------------------------------------------------------*/
624
625 void faxtester_set_timeout(faxtester_state_t *s, int timeout)
626 {
627 if (timeout >= 0)
628 s->timeout = s->timer + timeout*SAMPLE_RATE/1000;
629 else
630 s->timeout = 0x7FFFFFFFFFFFFFFFLL;
631 }
632 /*- End of function --------------------------------------------------------*/
633
634 void faxtester_set_transmit_on_idle(faxtester_state_t *s, int transmit_on_idle)
635 {
636 s->modems.transmit_on_idle = transmit_on_idle;
637 }
638 /*- End of function --------------------------------------------------------*/
639
640 void faxtester_set_tep_mode(faxtester_state_t *s, int use_tep)
641 {
642 s->modems.use_tep = use_tep;
643 }
644 /*- End of function --------------------------------------------------------*/
645
646 void faxtester_set_real_time_frame_handler(faxtester_state_t *s, faxtester_real_time_frame_handler_t *handler, void *user_data)
647 {
648 s->real_time_frame_handler = handler;
649 s->real_time_frame_user_data = user_data;
650 }
651 /*- End of function --------------------------------------------------------*/
652
653 void faxtester_set_front_end_step_complete_handler(faxtester_state_t *s, faxtester_front_end_step_complete_handler_t *handler, void *user_data)
654 {
655 s->front_end_step_complete_handler = handler;
656 s->front_end_step_complete_user_data = user_data;
657 }
658 /*- End of function --------------------------------------------------------*/
659
660 void faxtester_set_front_end_step_timeout_handler(faxtester_state_t *s, faxtester_front_end_step_complete_handler_t *handler, void *user_data)
661 {
662 s->front_end_step_timeout_handler = handler;
663 s->front_end_step_timeout_user_data = user_data;
664 }
665 /*- End of function --------------------------------------------------------*/
666
667 static void faxtester_fax_modems_init(fax_modems_state_t *s, int use_tep, void *user_data)
668 {
669 s->use_tep = use_tep;
670
671 hdlc_rx_init(&s->hdlc_rx, FALSE, FALSE, HDLC_FRAMING_OK_THRESHOLD, hdlc_accept, user_data);
672 hdlc_tx_init(&s->hdlc_tx, FALSE, 2, FALSE, hdlc_underflow_handler, user_data);
673 fsk_rx_init(&s->v21_rx, &preset_fsk_specs[FSK_V21CH2], FSK_FRAME_MODE_SYNC, (put_bit_func_t) hdlc_rx_put_bit, &s->hdlc_rx);
674 fsk_rx_signal_cutoff(&s->v21_rx, -45.5);
675 fsk_tx_init(&s->v21_tx, &preset_fsk_specs[FSK_V21CH2], (get_bit_func_t) hdlc_tx_get_bit, &s->hdlc_tx);
676 fsk_tx_set_modem_status_handler(&s->v21_tx, modem_tx_status, user_data);
677 v17_rx_init(&s->v17_rx, 14400, non_ecm_put_bit, user_data);
678 v17_tx_init(&s->v17_tx, 14400, s->use_tep, non_ecm_get_bit, user_data);
679 v17_tx_set_modem_status_handler(&s->v17_tx, modem_tx_status, user_data);
680 v29_rx_init(&s->v29_rx, 9600, non_ecm_put_bit, user_data);
681 v29_rx_signal_cutoff(&s->v29_rx, -45.5);
682 v29_tx_init(&s->v29_tx, 9600, s->use_tep, non_ecm_get_bit, user_data);
683 v29_tx_set_modem_status_handler(&s->v29_tx, modem_tx_status, user_data);
684 v27ter_rx_init(&s->v27ter_rx, 4800, non_ecm_put_bit, user_data);
685 v27ter_tx_init(&s->v27ter_tx, 4800, s->use_tep, non_ecm_get_bit, user_data);
686 v27ter_tx_set_modem_status_handler(&s->v27ter_tx, modem_tx_status, user_data);
687 silence_gen_init(&s->silence_gen, 0);
688 modem_connect_tones_tx_init(&s->connect_tx, MODEM_CONNECT_TONES_FAX_CNG);
689 modem_connect_tones_rx_init(&s->connect_rx,
690 MODEM_CONNECT_TONES_FAX_CNG,
691 tone_detected,
692 user_data);
693 dc_restore_init(&s->dc_restore);
694
695 s->rx_signal_present = FALSE;
696 s->rx_handler = (span_rx_handler_t *) &span_dummy_rx;
697 s->rx_user_data = NULL;
698 s->tx_handler = (span_tx_handler_t *) &silence_gen;
699 s->tx_user_data = &s->silence_gen;
700 }
701 /*- End of function --------------------------------------------------------*/
702
703 faxtester_state_t *faxtester_init(faxtester_state_t *s, int calling_party)
704 {
705 if (s == NULL)
706 {
707 if ((s = (faxtester_state_t *) malloc(sizeof(*s))) == NULL)
708 return NULL;
709 }
710
711 memset(s, 0, sizeof(*s));
712 span_log_init(&s->logging, SPAN_LOG_NONE, NULL);
713 span_log_set_protocol(&s->logging, "TST");
714 faxtester_fax_modems_init(&s->modems, FALSE, s);
715 faxtester_set_timeout(s, -1);
716 faxtester_set_tx_type(s, T30_MODEM_NONE, 0, FALSE, FALSE);
717
718 return s;
719 }
720 /*- End of function --------------------------------------------------------*/
721
722 int faxtester_release(faxtester_state_t *s)
723 {
724 return 0;
725 }
726 /*- End of function --------------------------------------------------------*/
727
728 int faxtester_free(faxtester_state_t *s)
729 {
730 free(s);
731 return 0;
732 }
733 /*- End of function --------------------------------------------------------*/
734
735 void faxtester_set_flush_handler(faxtester_state_t *s, faxtester_flush_handler_t *handler, void *user_data)
736 {
737 s->flush_handler = handler;
738 s->flush_user_data = user_data;
739 }
740 /*- End of function --------------------------------------------------------*/
741 /*- End of file ------------------------------------------------------------*/

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