2 * Asterisk -- A telephony toolkit for Linux.
4 * VoiceTronix Interface driver
6 * Copyright (C) 2003, Paul Bagyenda
8 * Paul Bagyenda <bagyenda@dsmagic.com>
10 * This program is free software, distributed under the terms of
11 * the GNU General Public License
18 #include <asterisk/lock.h>
19 #include <asterisk/channel.h>
20 #include <asterisk/channel_pvt.h>
21 #include <asterisk/config.h>
22 #include <asterisk/logger.h>
23 #include <asterisk/module.h>
24 #include <asterisk/pbx.h>
25 #include <asterisk/options.h>
26 #include <sys/socket.h>
31 #include <arpa/inet.h>
33 #include <sys/ioctl.h>
38 #define DEFAULT_GAIN 0
39 #define DEFAULT_ECHO_CANCEL 1
41 #define VPB_SAMPLES 240
42 #define VPB_MAX_BUF VPB_SAMPLES*4 + AST_FRIENDLY_OFFSET
44 #define VPB_NULL_EVENT 200
46 #define VPB_WAIT_TIMEOUT 4000
48 #define MAX_VPB_GAIN 12.0
50 #if defined(__cplusplus) || defined(c_plusplus)
54 static char *desc = "VoiceTronix V6PCI/V12PCI/V4PCI API Support";
55 static char *type = "vpb";
56 static char *tdesc = "Standard VoiceTronix API Driver";
57 static char *config = "vpb.conf";
59 /* Default context for dialtone mode */
60 static char context[AST_MAX_EXTENSION] = "default";
62 /* Default language */
63 static char language[MAX_LANGUAGE] = "";
66 static int gruntdetect_timeout = 3600000; /* Grunt detect timeout is 1hr. */
68 static const int prefformat = AST_FORMAT_SLINEAR;
70 static ast_mutex_t usecnt_lock = AST_MUTEX_INITIALIZER;
72 /* Protect the interface list (of vpb_pvt's) */
73 static ast_mutex_t iflock = AST_MUTEX_INITIALIZER;
75 /* Protect the monitoring thread, so only one process can kill or start it, and not
76 when it's doing something critical. */
77 static ast_mutex_t monlock = AST_MUTEX_INITIALIZER;
79 /* This is the thread for the monitor which checks for input on the channels
80 which are not currently in use. */
81 static pthread_t monitor_thread;
83 static int mthreadactive = -1; /* Flag for monitoring monitorthread.*/
86 static int restart_monitor(void);
88 /* The private structures of the VPB channels are
89 linked for selecting outgoing channels */
91 #define MODE_DIALTONE 1
92 #define MODE_IMMEDIATE 2
95 /* Pick a country or add your own! */
98 static VPB_TONE Dialtone = {440, 440, 440, -10, -10, -10, 5000, 0 };
99 static VPB_TONE Busytone = {470, 0, 0, -10, -100, -100, 5000, 0 };
100 static VPB_TONE Ringbacktone = {400, 50, 440, -10, -10, -10, 1400, 800 };
105 static VPB_TONE Dialtone = {425, 0, 0, -16, -100, -100, 10000, 0};
106 static VPB_TONE Busytone = {425, 0, 0, -10, -100, -100, 500, 500};
107 static VPB_TONE Ringbacktone = {400, 425, 450, -20, -20, -20, 1000, 1000};
111 /* grunt tone defn's */
112 static VPB_DETECT toned_grunt = { 3, VPB_GRUNT, 1, 2000, 3000, 0, 0, -40, 0, 0, 0, 40, { { VPB_DELAY, 1000, 0, 0 }, { VPB_RISING, 0, 40, 0 }, { 0, 100, 0, 0 } } };
113 static VPB_DETECT toned_ungrunt = { 2, VPB_GRUNT, 1, 2000, 1, 0, 0, -40, 0, 0, 30, 40, { { 0, 0, 0, 0 } } };
115 /* Use loop drop detection */
116 static int UseLoopDrop=1;
118 #define TIMER_PERIOD_RINGBACK 5200
119 #define TIMER_PERIOD_BUSY 700
121 #define VPB_EVENTS_ALL (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
122 |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
123 |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
124 #define VPB_EVENTS_NODTMF (VPB_MRING|VPB_MDIGIT|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
125 |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
126 |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
127 #define VPB_EVENTS_STAT (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
128 |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
129 |VPB_MRING_OFF|VPB_MSTATION_FLASH)
132 // Dialing parameters for Australia
133 //#define DIAL_WITH_CALL_PROGRESS
134 VPB_TONE_MAP DialToneMap[] = { { VPB_BUSY_AUST, VPB_CALL_DISCONNECT, 0 },
135 { VPB_DIAL, VPB_CALL_DIALTONE, 0 },
136 { VPB_RINGBACK_308, VPB_CALL_RINGBACK, 0 },
137 { VPB_BUSY_AUST, VPB_CALL_BUSY, 0 },
138 { VPB_GRUNT, VPB_CALL_GRUNT, 0 },
140 #define VPB_DIALTONE_WAIT 2000 /* Wait up to 2s for a dialtone */
141 #define VPB_RINGWAIT 4000 /* Wait up to 4s for ring tone after dialing */
142 #define VPB_CONNECTED_WAIT 4000 /* If no ring tone detected for 4s then consider call connected */
143 #define TIMER_PERIOD_NOANSWER 120000 /* Let it ring for 120s before deciding theres noone there */
145 #define MAX_BRIDGES_V4PCI 2
146 #define MAX_BRIDGES_V12PCI 128
149 #define VPB_STATE_ONHOOK 0
150 #define VPB_STATE_OFFHOOK 1
151 #define VPB_STATE_DIALLING 2
152 #define VPB_STATE_JOINED 3
153 #define VPB_STATE_GETDTMF 4
154 #define VPB_STATE_PLAYDIAL 5
155 #define VPB_STATE_PLAYBUSY 6
156 #define VPB_STATE_PLAYRING 7
161 struct ast_channel *c0, *c1, **rc;
162 struct ast_frame **fo;
168 static vpb_bridge_t * bridges;
169 static int max_bridges = MAX_BRIDGES_V4PCI;
171 static ast_mutex_t bridge_lock = AST_MUTEX_INITIALIZER;
174 vpb_model_unknown = 0,
179 static struct vpb_pvt {
181 ast_mutex_t owner_lock; /* Protect blocks that expect ownership to remain the same */
182 struct ast_channel *owner; /* Channel we belong to, possibly NULL */
184 int mode; /* fxo/imediate/dialtone*/
185 int handle; /* Handle for vpb interface */
187 int state; /* used to keep port state (internal to driver) */
189 int group; /* Which group this port belongs to */
191 char dev[256]; /* Device name, eg vpb/1-1 */
192 vpb_model_t vpb_model; /* card model */
194 struct ast_frame f, fr; /* Asterisk frame interface */
195 char buf[VPB_MAX_BUF]; /* Static buffer for reading frames */
197 int dialtone; /* NOT USED */
198 float txgain, rxgain; /* Hardware gain control */
199 float txswgain, rxswgain; /* Software gain control */
201 int wantdtmf; /* Waiting for DTMF. */
202 char context[AST_MAX_EXTENSION]; /* The context for this channel */
204 char ext[AST_MAX_EXTENSION]; /* DTMF buffer for the ext[ens] */
205 char language[MAX_LANGUAGE]; /* language being used */
206 char callerid[AST_MAX_EXTENSION]; /* CallerId used for directly connected phone */
208 int lastoutput; /* Holds the last Audio format output'ed */
209 int lastinput; /* Holds the last Audio format input'ed */
210 int last_ignore_dtmf;
212 void *busy_timer; /* Void pointer for busy vpb_timer */
213 int busy_timer_id; /* unique timer ID for busy timer */
215 void *ringback_timer; /* Void pointer for ringback vpb_timer */
216 int ringback_timer_id; /* unique timer ID for ringback timer */
218 double lastgrunt; /* time stamp (secs since epoc) of last grunt event */
220 ast_mutex_t lock; /* This one just protects bridge ptr below */
221 vpb_bridge_t *bridge;
223 int stopreads; /* Stop reading...*/
225 pthread_t readthread; /* For monitoring read channel. One per owned channel. */
227 ast_mutex_t record_lock; /* This one prevents reentering a record_buf block */
228 ast_mutex_t play_lock; /* This one prevents reentering a play_buf block */
230 ast_mutex_t play_dtmf_lock;
233 struct vpb_pvt *next; /* Next channel in list */
237 static struct ast_channel *vpb_new(struct vpb_pvt *i, int state, char *context);
238 static void *do_chanreads(void *pvt);
240 // Can't get vpb_bridge() working on v4pci without either a horrible
241 // high pitched feedback noise or bad hiss noise depending on gain settings
242 // Get asterisk to do the bridging
243 #define BAD_V4PCI_BRIDGE
245 // This one enables a half duplex bridge which may be required to prevent high pitched
246 // feedback when getting asterisk to do the bridging and when using certain gain settings.
247 //#define HALF_DUPLEX_BRIDGE
249 static int vpb_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc)
251 struct vpb_pvt *p0 = (struct vpb_pvt *)c0->pvt->pvt;
252 struct vpb_pvt *p1 = (struct vpb_pvt *)c1->pvt->pvt;
255 #ifdef BAD_V4PCI_BRIDGE
256 if(p0->vpb_model==vpb_model_v4pci)
260 /* Bridge channels, check if we can. I believe we always can, so find a slot.*/
262 ast_mutex_lock(&bridge_lock); {
263 for (i = 0; i < max_bridges; i++)
264 if (!bridges[i].inuse)
266 if (i < max_bridges) {
267 bridges[i].inuse = 1;
268 bridges[i].endbridge = 0;
269 bridges[i].flags = flags;
274 ast_mutex_init(&bridges[i].lock);
275 pthread_cond_init(&bridges[i].cond, NULL);
277 } ast_mutex_unlock(&bridge_lock);
279 if (i == max_bridges) {
280 ast_log(LOG_WARNING, "Failed to bridge %s and %s!\n", c0->name, c1->name);
283 /* Set bridge pointers. You don't want to take these locks while holding bridge lock.*/
284 ast_mutex_lock(&p0->lock); {
285 p0->bridge = &bridges[i];
286 } ast_mutex_unlock(&p0->lock);
288 ast_mutex_lock(&p1->lock); {
289 p1->bridge = &bridges[i];
290 } ast_mutex_unlock(&p1->lock);
292 if (option_verbose>1)
293 ast_verbose(VERBOSE_PREFIX_2 "Bridging call entered with [%s, %s]\n", c0->name, c1->name);
296 #ifdef HALF_DUPLEX_BRIDGE
298 if (option_verbose>1)
299 ast_verbose(VERBOSE_PREFIX_2 "Starting half-duplex bridge [%s, %s]\n", c0->name, c1->name);
303 memset(p0->buf, 0, sizeof p0->buf);
304 memset(p1->buf, 0, sizeof p1->buf);
306 vpb_record_buf_start(p0->handle, VPB_ALAW);
307 vpb_record_buf_start(p1->handle, VPB_ALAW);
309 vpb_play_buf_start(p0->handle, VPB_ALAW);
310 vpb_play_buf_start(p1->handle, VPB_ALAW);
312 while( !bridges[i].endbridge ) {
313 struct vpb_pvt *from, *to;
321 vpb_record_buf_sync(from->handle, from->buf, VPB_SAMPLES);
322 vpb_play_buf_sync(to->handle, from->buf, VPB_SAMPLES);
325 vpb_record_buf_finish(p0->handle);
326 vpb_record_buf_finish(p1->handle);
328 vpb_play_buf_finish(p0->handle);
329 vpb_play_buf_finish(p1->handle);
331 if (option_verbose>1)
332 ast_verbose(VERBOSE_PREFIX_2 "Finished half-duplex bridge [%s, %s]\n", c0->name, c1->name);
338 res = vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_ON, i+1 /* resource 1 & 2 only for V4PCI*/ );
340 //pthread_cond_wait(&bridges[i].cond, &bridges[i].lock); /* Wait for condition signal. */
341 while( !bridges[i].endbridge ) {};
342 vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_OFF, i+1 /* resource 1 & 2 only for V4PCI*/ );
347 ast_mutex_lock(&bridge_lock); {
348 bridges[i].inuse = 0;
349 ast_mutex_destroy(&bridges[i].lock);
350 pthread_cond_destroy(&bridges[i].cond);
351 } ast_mutex_unlock(&bridge_lock);
353 ast_mutex_lock(&p0->lock); {
355 } ast_mutex_unlock(&p0->lock);
357 ast_mutex_lock(&p1->lock); {
359 } ast_mutex_unlock(&p1->lock);
362 if (option_verbose>1)
363 ast_verbose(VERBOSE_PREFIX_2 "Bridging call done with [%s, %s] => %d\n", c0->name, c1->name, res);
365 return (res==VPB_OK)?0:-1;
368 static double get_time_in_ms()
371 gettimeofday(&tv, NULL);
372 return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000);
375 // Caller ID can be located in different positions between the rings depending on your Telco
376 // Australian (Telstra) callerid starts 700ms after 1st ring and finishes 1.5s after first ring
377 // Use ANALYSE_CID to record rings and determine location of callerid
378 //#define ANALYSE_CID
379 #define RING_SKIP 600
380 #define CID_MSECS 1700
382 static void get_callerid(struct vpb_pvt *p)
384 short buf[CID_MSECS*8]; // 8kHz sampling rate
385 double cid_record_time;
388 if(strcasecmp(p->callerid, "on")) {
389 p->owner->callerid = strdup("unknown");
393 if( ast_mutex_trylock(&p->record_lock) == 0 ) {
395 char callerid[AST_MAX_EXTENSION] = "";
397 cid_record_time = get_time_in_ms();
398 if (option_verbose>3)
399 ast_verbose(VERBOSE_PREFIX_4 "CID record - start\n");
402 VPB_RECORD record_parms = { "", 8 * 1000 }; // record a couple of rings
403 vpb_record_set(p->handle,&record_parms);
404 ast_verbose(VERBOSE_PREFIX_4 "Recording debug CID sample to /tmp/cid.raw\n");
405 vpb_record_file_sync(p->handle,"/tmp/cid.raw",VPB_LINEAR);
406 rc = 1; // don't try to decode_cid
408 // Skip any trailing ringtone
409 vpb_sleep(RING_SKIP);
411 if (option_verbose>3)
412 ast_verbose(VERBOSE_PREFIX_4 "CID record - skipped %fms trailing ring\n",
413 get_time_in_ms() - cid_record_time);
414 cid_record_time = get_time_in_ms();
416 // Record bit between the rings which contains the callerid
417 vpb_record_buf_start(p->handle, VPB_LINEAR);
418 rc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
419 vpb_record_buf_finish(p->handle);
422 if (option_verbose>3)
423 ast_verbose(VERBOSE_PREFIX_4 "CID record - recorded %fms between rings\n",
424 get_time_in_ms() - cid_record_time);
426 ast_mutex_unlock(&p->record_lock);
429 ast_log(LOG_ERROR, "Failed to record caller id sample on %s\n", p->dev );
433 // This decodes FSK 1200baud type callerid
434 if ((rc=vpb_cid_decode(callerid, buf, CID_MSECS*8)) == VPB_OK ) {
436 strcpy(callerid,"undisclosed"); // blocked CID (eg caller used 1831)
438 ast_log(LOG_ERROR, "Failed to decode caller id on %s - %s\n", p->dev, vpb_strerror(rc) );
439 strcpy(callerid,"unknown");
441 p->owner->callerid = strdup(callerid);
444 ast_log(LOG_ERROR, "Failed to set record mode for caller id on %s\n", p->dev );
447 // Terminate any tones we are presently playing
448 static void stoptone( int handle)
452 while(vpb_playtone_state(handle)!=VPB_OK){
453 vpb_tone_terminate(handle);
454 ret = vpb_get_event_ch_async(handle,&je);
455 if ((ret == VPB_OK)&&(je.type != VPB_DIALEND)){
456 if (option_verbose > 3){
457 ast_verbose(VERBOSE_PREFIX_4 "Stop tone collected a wrong event!!\n");
465 /* Safe vpb_playtone_async */
466 static int playtone( int handle, VPB_TONE *tone)
470 if (option_verbose > 3)
471 ast_verbose(VERBOSE_PREFIX_4 "[%02d]: Playing tone\n", handle);
472 ret = vpb_playtone_async(handle, tone);
476 static inline int monitor_handle_owned(struct vpb_pvt *p, VPB_EVENT *e)
478 struct ast_frame f = {AST_FRAME_CONTROL}; /* default is control, Clear rest. */
481 if (option_verbose > 3)
482 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned got event: [%d=>%d]\n",
483 p->dev, e->type, e->data);
488 if (p->mode == MODE_FXO) {
489 f.subclass = AST_CONTROL_RING;
491 f.frametype = -1; /* ignore ring on station port. */
499 if (e->data == p->busy_timer_id) {
500 playtone(p->handle,&Busytone);
501 p->state = VPB_STATE_PLAYBUSY;
502 vpb_timer_restart(p->busy_timer);
504 } else if (e->data == p->ringback_timer_id) {
505 playtone(p->handle, &Ringbacktone);
506 vpb_timer_restart(p->ringback_timer);
509 f.frametype = -1; /* Ignore. */
514 if (p->owner->_state == AST_STATE_UP) {
515 f.frametype = AST_FRAME_DTMF;
516 f.subclass = e->data;
522 if (e->data == VPB_BUSY || e->data == VPB_BUSY_308 || e->data == VPB_BUSY_AUST ) {
523 f.subclass = AST_CONTROL_HANGUP;
524 if (p->owner->_state == AST_STATE_UP) {
525 f.subclass = AST_CONTROL_HANGUP;
528 f.subclass = AST_CONTROL_BUSY;
530 } else if (e->data == VPB_GRUNT) {
531 if( ( get_time_in_ms() - p->lastgrunt ) > gruntdetect_timeout ) {
532 // Nothing heard on line for a very long time
533 // Timeout connection
534 if (option_verbose > 2)
535 ast_verbose(VERBOSE_PREFIX_3 "grunt timeout\n");
536 ast_log(LOG_NOTICE,"%s: Line hangup due of lack of conversation\n",p->dev);
537 f.subclass = AST_CONTROL_HANGUP;
539 p->lastgrunt = get_time_in_ms();
547 #ifdef DIAL_WITH_CALL_PROGRESS
548 if (e->data == VPB_CALL_CONNECTED)
549 f.subclass = AST_CONTROL_ANSWER;
550 else if (e->data == VPB_CALL_NO_DIAL_TONE || e->data == VPB_CALL_NO_RING_BACK)
551 f.subclass = AST_CONTROL_CONGESTION;
552 else if (e->data == VPB_CALL_NO_ANSWER || e->data == VPB_CALL_BUSY)
553 f.subclass = AST_CONTROL_BUSY;
554 else if (e->data == VPB_CALL_DISCONNECTED)
555 f.subclass = AST_CONTROL_HANGUP;
557 ast_log(LOG_NOTICE,"%s: Got call progress callback but blind dialing \n", p->dev);
562 case VPB_STATION_OFFHOOK:
563 f.subclass = AST_CONTROL_ANSWER;
566 /* not sure why this was commented out */
568 if ((p->mode == MODE_FXO)&&(UseLoopDrop)){ /* ignore loop drop on stations */
569 if (p->owner->_state == AST_STATE_UP)
570 f.subclass = AST_CONTROL_HANGUP;
576 case VPB_STATION_ONHOOK:
577 f.subclass = AST_CONTROL_HANGUP;
580 case VPB_STATION_FLASH:
581 f.subclass = AST_CONTROL_FLASH;
584 // Called when dialing has finished and ringing starts
585 // No indication that call has really been answered when using blind dialing
587 f.subclass = AST_CONTROL_ANSWER;
588 if (option_verbose > 1)
589 ast_verbose(VERBOSE_PREFIX_2 "%s: Dialend\n", p->dev);
592 case VPB_PLAY_UNDERFLOW:
594 vpb_reset_play_fifo_alarm(p->handle);
597 case VPB_RECORD_OVERFLOW:
599 vpb_reset_record_fifo_alarm(p->handle);
607 if (option_verbose > 3)
608 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: putting frame: [%d=>%d], bridge=%p\n",
609 p->dev, f.frametype, f.subclass, (void *)p->bridge);
611 ast_mutex_lock(&p->lock); {
612 if (p->bridge) { /* Check what happened, see if we need to report it. */
613 switch (f.frametype) {
615 if (!(p->bridge->c0 == p->owner &&
616 (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_0) ) &&
617 !(p->bridge->c1 == p->owner &&
618 (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_1) ))
619 /* Kill bridge, this is interesting. */
623 case AST_FRAME_CONTROL:
624 if (!(p->bridge->flags & AST_BRIDGE_IGNORE_SIGS))
626 if (f.subclass == AST_CONTROL_BUSY ||
627 f.subclass == AST_CONTROL_CONGESTION ||
628 f.subclass == AST_CONTROL_HANGUP ||
629 f.subclass == AST_CONTROL_FLASH)
639 *p->bridge->fo = ast_frisolate(&f);
641 *p->bridge->rc = p->owner;
643 ast_mutex_lock(&p->bridge->lock); {
644 p->bridge->endbridge = 1;
645 pthread_cond_signal(&p->bridge->cond);
646 } ast_mutex_unlock(&p->bridge->lock);
649 } ast_mutex_unlock(&p->lock);
651 if (endbridge) return 0;
653 // Trylock used here to avoid deadlock that can occur if we
654 // happen to be in here handling an event when hangup is called
655 // Problem is that hangup holds p->owner->lock
656 if (f.frametype >= 0 && f.frametype != AST_FRAME_NULL) {
657 if (ast_mutex_trylock(&p->owner->lock)==0) {
658 ast_queue_frame(p->owner, &f);
659 ast_mutex_unlock(&p->owner->lock);
661 ast_verbose("%s: Missed event %d/%d \n",
662 p->dev,f.frametype, f.subclass);
669 static inline int monitor_handle_notowned(struct vpb_pvt *p, VPB_EVENT *e)
673 if (option_verbose > 3) {
674 char str[VPB_MAX_STR];
675 vpb_translate_event(e, str);
676 ast_verbose(VERBOSE_PREFIX_4 "%s: In not owned, mode=%d, event[%d][%s]=[%d]\n",
677 p->dev, p->mode, e->type,str, e->data);
682 if (p->mode == MODE_FXO) /* FXO port ring, start * */ {
683 vpb_new(p, AST_STATE_RING, p->context);
684 get_callerid(p); /* Australian Caller ID only between 1st and 2nd ring */
691 case VPB_STATION_OFFHOOK:
692 if (p->mode == MODE_IMMEDIATE)
693 vpb_new(p,AST_STATE_RING, p->context);
695 ast_verbose(VERBOSE_PREFIX_4 "%s: In not owned, playing dialtone\n",p->dev);
696 playtone(p->handle, &Dialtone);
698 p->ext[0] = 0; /* Just to be sure & paranoid.*/
699 p->state=VPB_STATE_PLAYDIAL;
704 if (p->mode == MODE_DIALTONE){
705 if (p->state == VPB_STATE_PLAYDIAL) {
706 playtone(p->handle, &Dialtone);
708 p->ext[0] = 0; // Just to be sure & paranoid.
710 /* These are not needed as they have timers to restart them
711 else if (p->state == VPB_STATE_PLAYBUSY) {
712 playtone(p->handle, &Busytone);
714 p->ext[0] = 0; // Just to be sure & paranoid.
716 else if (p->state == VPB_STATE_PLAYRING) {
717 playtone(p->handle, &Ringbacktone);
719 p->ext[0] = 0; // Just to be sure & paranoid.
723 ast_verbose(VERBOSE_PREFIX_4 "%s: Got a DIALEND when not really expected\n",p->dev);
727 case VPB_STATION_ONHOOK: /* clear ext */
731 p->state=VPB_STATE_ONHOOK;
735 if (p->state == VPB_STATE_ONHOOK){
736 /* DTMF's being passed while on-hook maybe Caller ID */
739 if (p->wantdtmf == 1) {
743 p->state=VPB_STATE_GETDTMF;
746 if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)){
747 vpb_new(p,AST_STATE_RING, p->context);
748 } else if (!ast_canmatch_extension(NULL, p->context, p->ext, 1, p->callerid)){
749 if (ast_exists_extension(NULL, "default", p->ext, 1, p->callerid)) {
750 vpb_new(p,AST_STATE_RING, "default");
751 } else if (!ast_canmatch_extension(NULL, "default", p->ext, 1, p->callerid)) {
752 if (option_verbose > 3) {
753 ast_verbose(VERBOSE_PREFIX_4 "%s: can't match anything in %s or default\n",
756 playtone(p->handle, &Busytone);
757 vpb_timer_restart(p->busy_timer);
758 p->state = VPB_STATE_PLAYBUSY;
768 if (option_verbose > 3)
769 ast_verbose(VERBOSE_PREFIX_4 "%s: Done not owned, mode=%d, [%d=>%d]\n",
770 p->dev, p->mode, e->type, e->data);
775 static void *do_monitor(void *unused)
778 /* Monitor thread, doesn't die until explicitly killed. */
780 if (option_verbose > 1)
781 ast_verbose(VERBOSE_PREFIX_2 "Starting vpb monitor thread[%ld]\n",
784 pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
789 char str[VPB_MAX_STR];
793 if (option_verbose > 3)
794 ast_verbose(VERBOSE_PREFIX_4 "Monitor waiting for event\n");
797 int res = vpb_get_event_sync(&e, VPB_WAIT_TIMEOUT);
798 if( (res==VPB_NO_EVENTS) || (res==VPB_TIME_OUT) ){
800 if (option_verbose > 3){
801 if (res == VPB_NO_EVENTS){
802 ast_verbose(VERBOSE_PREFIX_4 "No events....\n");
804 ast_verbose(VERBOSE_PREFIX_4 "No events, timed out....\n");
812 ast_log(LOG_ERROR,"Monitor get event error %s\n", vpb_strerror(res) );
813 ast_verbose("Monitor get event error %s\n", vpb_strerror(res) );
821 ast_mutex_lock(&monlock); {
822 vpb_translate_event(&e, str);
824 if (e.type == VPB_NULL_EVENT) {
825 if (option_verbose > 3)
826 ast_verbose(VERBOSE_PREFIX_4 "Monitor got null event\n");
827 goto done; /* Nothing to do, just a wakeup call.*/
830 str[(strlen(str)-1)]='\0';
833 ast_mutex_lock(&iflock); {
835 while (p && p->handle != e.handle)
837 } ast_mutex_unlock(&iflock);
839 if (p && (option_verbose > 3))
840 ast_verbose(VERBOSE_PREFIX_4 "%s: Event [%d=>%s] \n",
841 p ? p->dev : "null", e.type, str );
844 } ast_mutex_unlock(&monlock);
847 if (e.type != VPB_NULL_EVENT){
848 ast_log(LOG_WARNING, "Got event [%s][%d], no matching iface!\n", str,e.type);
849 if (option_verbose > 3){
850 ast_verbose(VERBOSE_PREFIX_4 "vpb/ERR: No interface for Event [%d=>%s] \n",e.type,str );
856 /* flush the event from the channel event Q */
857 vpb_get_event_ch_async(e.handle,&je);
858 if (option_verbose > 3){
859 vpb_translate_event(&je, str);
860 ast_verbose( VERBOSE_PREFIX_4 "%s: Flushing event [%d]=>%s\n",p->dev,je.type,str);
863 /* Two scenarios: Are you owned or not. */
864 ast_mutex_lock(&p->owner_lock);
866 monitor_handle_owned(p, &e);
867 ast_mutex_unlock(&p->owner_lock);
869 ast_mutex_unlock(&p->owner_lock);
870 monitor_handle_notowned(p, &e);
878 static int restart_monitor(void)
882 /* If we're supposed to be stopped -- stay stopped */
883 if (mthreadactive == -2)
886 if (option_verbose > 3)
887 ast_verbose(VERBOSE_PREFIX_4 "Restarting monitor\n");
889 ast_mutex_lock(&monlock); {
890 if (monitor_thread == pthread_self()) {
891 ast_log(LOG_WARNING, "Cannot kill myself\n");
893 if (option_verbose > 3)
894 ast_verbose(VERBOSE_PREFIX_4 "Monitor trying to kill monitor\n");
897 if (mthreadactive != -1) {
898 /* Why do other drivers kill the thread? No need says I, simply awake thread with event. */
901 e.type = VPB_NULL_EVENT;
904 if (option_verbose > 3)
905 ast_verbose(VERBOSE_PREFIX_4 "Trying to reawake monitor\n");
909 /* Start a new monitor */
910 int pid = pthread_create(&monitor_thread, NULL, do_monitor, NULL);
911 if (option_verbose > 3)
912 ast_verbose(VERBOSE_PREFIX_4 "Created new monitor thread %d\n",pid);
914 ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
918 mthreadactive = 0; /* Started the thread!*/
921 } ast_mutex_unlock(&monlock);
923 if (option_verbose > 3)
924 ast_verbose(VERBOSE_PREFIX_4 "Monitor restarted\n");
929 // Per board config that must be called after vpb_open()
930 static void mkbrd(vpb_model_t model, int echo_cancel)
933 if(model==vpb_model_v4pci)
934 max_bridges = MAX_BRIDGES_V4PCI;
935 bridges = (vpb_bridge_t *)malloc(max_bridges * sizeof(vpb_bridge_t) );
937 ast_log(LOG_ERROR, "Failed to initialize bridges\n");
939 memset(bridges,0,max_bridges * sizeof(vpb_bridge_t));
942 if (model==vpb_model_v4pci) {
943 vpb_echo_canc_disable();
944 ast_log(LOG_NOTICE, "Voicetronix echo cancellation OFF\n");
947 /* need to it port by port for OpenSwitch*/
950 if (model==vpb_model_v4pci) {
951 vpb_echo_canc_enable();
952 ast_log(LOG_NOTICE, "Voicetronix echo cancellation ON\n");
955 /* need to it port by port for OpenSwitch*/
960 struct vpb_pvt *mkif(int board, int channel, int mode, float txgain, float rxgain,
961 float txswgain, float rxswgain, int bal1, int bal2, int bal3,
962 char * callerid, int echo_cancel, int group )
967 tmp = (struct vpb_pvt *)calloc(1, sizeof *tmp);
972 tmp->handle = vpb_open(board, channel);
974 if (tmp->handle < 0) {
975 ast_log(LOG_WARNING, "Unable to create channel vpb/%d-%d: %s\n",
976 board, channel, strerror(errno));
981 sprintf(tmp->dev, "vpb/%d-%d", board, channel);
987 strcpy(tmp->language, language);
988 strcpy(tmp->context, context);
991 strcpy(tmp->callerid, callerid);
994 strcpy(tmp->callerid, "unknown");
997 /* check if codec balances have been set in the config file */
999 if ((bal1>=0) && !(bal1 & 32)) bal1 |= 32;
1000 vpb_set_codec_reg(tmp->handle, 0x42, bal3);
1002 if(bal1>=0) vpb_set_codec_reg(tmp->handle, 0x32, bal1);
1003 if(bal2>=0) vpb_set_codec_reg(tmp->handle, 0x3a, bal2);
1005 tmp->txgain = txgain;
1006 vpb_play_set_hw_gain(tmp->handle, (txgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txgain);
1008 tmp->rxgain = rxgain;
1009 vpb_record_set_hw_gain(tmp->handle, (rxgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxgain);
1011 tmp->txswgain = txswgain;
1012 vpb_play_set_gain(tmp->handle, (txswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txswgain);
1014 tmp->rxswgain = rxswgain;
1015 vpb_record_set_gain(tmp->handle, (rxswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxswgain);
1017 tmp->vpb_model = vpb_model_unknown;
1018 if( vpb_get_model(buf) == VPB_OK ) {
1019 if(strcmp(buf,"V12PCI")==0)
1020 tmp->vpb_model = vpb_model_v12pci;
1021 else if(strcmp(buf,"VPB4")==0)
1022 tmp->vpb_model = vpb_model_v4pci;
1025 ast_mutex_init(&tmp->lock);
1026 ast_mutex_init(&tmp->record_lock);
1027 ast_mutex_init(&tmp->play_lock);
1028 ast_mutex_init(&tmp->play_dtmf_lock);
1029 ast_mutex_init(&tmp->owner_lock);
1031 tmp->busy_timer_id = vpb_timer_get_unique_timer_id();
1032 vpb_timer_open(&tmp->busy_timer, tmp->handle, tmp->busy_timer_id, TIMER_PERIOD_BUSY);
1034 tmp->ringback_timer_id = vpb_timer_get_unique_timer_id();
1035 vpb_timer_open(&tmp->ringback_timer, tmp->handle, tmp->ringback_timer_id, TIMER_PERIOD_RINGBACK);
1037 if (mode == MODE_FXO){
1038 vpb_set_event_mask(tmp->handle, VPB_EVENTS_NODTMF );
1041 vpb_set_event_mask(tmp->handle, VPB_EVENTS_STAT );
1044 if ((tmp->vpb_model == vpb_model_v12pci) && (echo_cancel)){
1045 vpb_hostecho_on(tmp->handle);
1048 /* define grunt tone */
1049 vpb_settonedet(tmp->handle,&toned_ungrunt);
1051 ast_log(LOG_NOTICE,"Voicetronix %s channel %s initialized (rxgain=%f txgain=%f) (%f/%f/0x%X/0x%X/0x%X)\n",
1052 (tmp->vpb_model==vpb_model_v4pci)?"V4PCI":
1053 (tmp->vpb_model==vpb_model_v12pci)?"V12PCI":"[Unknown model]",
1054 tmp->dev, tmp->rxswgain, tmp->txswgain, tmp->rxgain, tmp->txgain, bal1, bal2, bal3 );
1059 static int vpb_indicate(struct ast_channel *ast, int condition)
1061 struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1064 if (option_verbose > 3)
1065 ast_verbose(VERBOSE_PREFIX_4 " vpb indicate on %s with %d\n", p->dev, condition);
1068 case AST_CONTROL_BUSY:
1069 case AST_CONTROL_CONGESTION:
1070 playtone(p->handle, &Busytone);
1071 p->state = VPB_STATE_PLAYBUSY;
1072 vpb_timer_restart(p->busy_timer);
1074 case AST_CONTROL_RINGING:
1075 playtone(p->handle, &Ringbacktone);
1076 vpb_timer_restart(p->ringback_timer);
1078 case AST_CONTROL_ANSWER:
1079 case -1: /* -1 means stop playing? */
1080 vpb_timer_stop(p->ringback_timer);
1081 vpb_timer_stop(p->busy_timer);
1082 stoptone(p->handle);
1084 case AST_CONTROL_HANGUP:
1085 playtone(p->handle, &Busytone);
1086 p->state = VPB_STATE_PLAYBUSY;
1087 vpb_timer_restart(p->busy_timer);
1097 static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
1099 struct vpb_pvt *p = (struct vpb_pvt *)newchan->pvt->pvt;
1101 ast_mutex_lock(&p->lock);
1103 "New owner for channel %s is %s\n", p->dev, newchan->name);
1105 if (p->owner == oldchan) {
1109 if (newchan->_state == AST_STATE_RINGING)
1110 vpb_indicate(newchan, AST_CONTROL_RINGING);
1112 ast_mutex_unlock(&p->lock);
1116 static int vpb_digit(struct ast_channel *ast, char digit)
1118 struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1124 ast_mutex_lock(&p->play_dtmf_lock);
1125 strncat(p->play_dtmf,s,sizeof(*p->play_dtmf));
1126 ast_mutex_unlock(&p->play_dtmf_lock);
1131 static int vpb_call(struct ast_channel *ast, char *dest, int timeout)
1133 struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1135 char *s = strrchr(dest, '/');
1136 char dialstring[254];
1142 strcpy(dialstring,s);
1143 for (i=0; dialstring[i] != '\0' ; i++) {
1144 if ((dialstring[i] == 'w') || (dialstring[i] == 'W'))
1145 dialstring[i] = ',';
1146 else if ((dialstring[i] == 'f') || (dialstring[i] == 'F'))
1147 dialstring[i] = '&';
1150 if (ast->_state != AST_STATE_DOWN && ast->_state != AST_STATE_RESERVED) {
1151 ast_log(LOG_WARNING, "vpb_call on %s neither down nor reserved!\n",
1155 if (p->mode != MODE_FXO) /* Station port, ring it. */
1156 res = vpb_ring_station_async(p->handle, VPB_RING_STATION_ON,0);
1160 // Dial must timeout or it can leave channels unuseable
1162 timeout = TIMER_PERIOD_NOANSWER;
1164 timeout = timeout * 1000; //convert from secs to ms.
1166 // These timeouts are only used with call progress dialing
1167 call.dialtones = 1; // Number of dialtones to get outside line
1168 call.dialtone_timeout = VPB_DIALTONE_WAIT; // Wait this long for dialtone (ms)
1169 call.ringback_timeout = VPB_RINGWAIT; // Wait this long for ringing after dialing (ms)
1170 call.inter_ringback_timeout = VPB_CONNECTED_WAIT; // If ringing stops for this long consider it connected (ms)
1171 call.answer_timeout = timeout; // Time to wait for answer after ringing starts (ms)
1172 memcpy( &call.tone_map, DialToneMap, sizeof(DialToneMap) );
1173 vpb_set_call(p->handle, &call);
1175 if (option_verbose > 1)
1176 ast_verbose(VERBOSE_PREFIX_2 "Calling %s on %s \n", dialstring, ast->name);
1178 if (option_verbose > 2) {
1180 ast_verbose(VERBOSE_PREFIX_2 "Dial parms for %s %d/%dms/%dms/%dms/%dms\n"
1181 , ast->name, call.dialtones, call.dialtone_timeout
1182 , call.ringback_timeout, call.inter_ringback_timeout
1183 , call.answer_timeout );
1184 for( j=0; !call.tone_map[j].terminate; j++ )
1185 ast_verbose(VERBOSE_PREFIX_2 "Dial parms for %s tone %d->%d\n",
1186 ast->name, call.tone_map[j].tone_id, call.tone_map[j].call_id);
1189 vpb_sethook_sync(p->handle,VPB_OFFHOOK);
1190 p->state=VPB_STATE_OFFHOOK;
1192 #ifndef DIAL_WITH_CALL_PROGRESS
1194 res = vpb_dial_async(p->handle, dialstring);
1196 res = vpb_call_async(p->handle, dialstring);
1199 if (res != VPB_OK) {
1200 ast_log(LOG_DEBUG, "Call on %s to %s failed: %s\n", ast->name, s, vpb_strerror(res));
1206 if (option_verbose > 2)
1207 ast_verbose(VERBOSE_PREFIX_3 " VPB Calling %s [t=%d] on %s returned %d\n", s, timeout, ast->name, res);
1209 ast_setstate(ast, AST_STATE_RINGING);
1210 ast_queue_control(ast,AST_CONTROL_RINGING);
1213 pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
1218 static int vpb_hangup(struct ast_channel *ast)
1222 char str[VPB_MAX_STR];
1224 if (option_verbose > 1)
1225 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup requested\n", ast->name);
1227 if (!ast->pvt || !ast->pvt->pvt) {
1228 ast_log(LOG_WARNING, "%s: channel not connected?\n", ast->name);
1232 if(option_verbose>3)
1233 ast_verbose( VERBOSE_PREFIX_4 "%s: Setting state down\n",ast->name);
1234 ast_setstate(ast,AST_STATE_DOWN);
1236 p = (struct vpb_pvt *)ast->pvt->pvt;
1240 if( p->readthread ){
1241 pthread_join(p->readthread, NULL);
1242 if(option_verbose>3)
1243 ast_verbose( VERBOSE_PREFIX_4 "%s: stopped record thread on %s\n",ast->name,p->dev);
1247 if (p->lastoutput != -1) {
1248 if(option_verbose>1)
1249 ast_verbose( VERBOSE_PREFIX_2 "%s: Ending play mode on %s\n",ast->name,p->dev);
1250 vpb_play_terminate(p->handle);
1251 ast_mutex_lock(&p->play_lock); {
1252 vpb_play_buf_finish(p->handle);
1253 } ast_mutex_unlock(&p->play_lock);
1256 if (p->mode != MODE_FXO) {
1258 vpb_ring_station_async(p->handle, VPB_RING_STATION_OFF,0);
1259 if(p->state!=VPB_STATE_ONHOOK){
1260 /* This is causing a "dial end" "play tone" loop
1261 playtone(p->handle, &Busytone);
1262 p->state = VPB_STATE_PLAYBUSY;
1263 if(option_verbose>4)
1264 ast_verbose( VERBOSE_PREFIX_4 "%s: Station offhook[%d], playing busy tone\n",
1265 ast->name,p->state);
1269 stoptone(p->handle);
1272 stoptone(p->handle); // Terminates any dialing
1273 vpb_sethook_sync(p->handle, VPB_ONHOOK);
1274 p->state=VPB_STATE_ONHOOK;
1276 while (VPB_OK==vpb_get_event_ch_async(p->handle,&je)){
1277 if(option_verbose>3) {
1278 vpb_translate_event(&je, str);
1279 ast_verbose( VERBOSE_PREFIX_4 "%s: Flushing event [%d]=>%s\n",ast->name,je.type,str);
1286 p->last_ignore_dtmf = 1;
1290 ast_mutex_lock(&p->owner_lock); {
1292 ast->pvt->pvt = NULL;
1293 } ast_mutex_unlock(&p->owner_lock);
1295 ast_mutex_lock(&usecnt_lock); {
1297 } ast_mutex_unlock(&usecnt_lock);
1298 ast_update_use_count();
1300 if (option_verbose > 1)
1301 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup complete\n", ast->name);
1307 static int vpb_answer(struct ast_channel *ast)
1309 struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1313 if (ast->_state != AST_STATE_UP) {
1314 if (p->mode == MODE_FXO){
1315 vpb_sethook_sync(p->handle, VPB_OFFHOOK);
1316 p->state=VPB_STATE_OFFHOOK;
1318 ret = vpb_get_event_ch_async(p->handle,&je);
1319 if ((ret == VPB_OK)&&(je.type != VPB_DROP)){
1320 if (option_verbose > 3){
1321 ast_verbose(VERBOSE_PREFIX_4 "Answer collected a wrong event!!\n");
1326 ast_setstate(ast, AST_STATE_UP);
1328 if(option_verbose>1)
1329 ast_verbose( VERBOSE_PREFIX_2 "Answered call from %s on %s [%s]\n",
1330 p->owner->callerid, ast->name,(p->mode == MODE_FXO)?"FXO":"FXS");
1333 if( !p->readthread ){
1334 pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
1336 if(option_verbose>3)
1337 ast_verbose(VERBOSE_PREFIX_4 "Record thread already running!!\n");
1340 if(option_verbose>3) {
1341 ast_verbose(VERBOSE_PREFIX_4 "Answered state is up\n");
1347 static struct ast_frame *vpb_read(struct ast_channel *ast)
1349 struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1350 static struct ast_frame f = {AST_FRAME_NULL};
1353 ast_log(LOG_NOTICE, "vpb_read should never be called (chan=%s)!\n", p->dev);
1358 static inline int ast2vpbformat(int ast_format)
1360 switch(ast_format) {
1361 case AST_FORMAT_ALAW:
1363 case AST_FORMAT_SLINEAR:
1365 case AST_FORMAT_ULAW:
1367 case AST_FORMAT_ADPCM:
1368 return VPB_OKIADPCM;
1374 static inline int astformatbits(int ast_format)
1376 switch(ast_format) {
1377 case AST_FORMAT_ALAW:
1378 case AST_FORMAT_ULAW:
1380 case AST_FORMAT_SLINEAR:
1382 case AST_FORMAT_ADPCM:
1389 int gain_vector(float g, short *v, int n)
1393 for ( i = 0; i<n; i++) {
1404 static int vpb_write(struct ast_channel *ast, struct ast_frame *frame)
1406 struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1407 int res = 0, fmt = 0;
1409 if (frame->frametype != AST_FRAME_VOICE) {
1410 if(option_verbose>3)
1411 ast_verbose( VERBOSE_PREFIX_4 "%s: Don't know how to handle from type %d\n", ast->name, frame->frametype);
1413 } else if (ast->_state != AST_STATE_UP) {
1414 if(option_verbose>3)
1415 ast_verbose( VERBOSE_PREFIX_4 "%s: Writing frame type [%d,%d] on chan %s not up\n",ast->name, frame->frametype, frame->subclass, ast->name);
1420 fmt = ast2vpbformat(frame->subclass);
1422 ast_log(LOG_WARNING, "%s: vpb_write Cannot handle frames of %d format!\n",ast->name, frame->subclass);
1426 ast_mutex_lock(&p->play_lock);
1428 if (p->lastoutput == -1) {
1429 vpb_play_buf_start(p->handle, fmt);
1430 if(option_verbose>1)
1431 ast_verbose( VERBOSE_PREFIX_2 "%s: Starting play mode (codec=%d)\n",p->dev,fmt);
1432 } else if (p->lastoutput != fmt) {
1433 vpb_play_buf_finish(p->handle);
1434 vpb_play_buf_start(p->handle, fmt);
1435 if(option_verbose>1)
1436 ast_verbose( VERBOSE_PREFIX_2 "%s: Changed play format (%d=>%d)\n",p->dev,p->lastoutput,fmt);
1439 p->lastoutput = fmt;
1441 // Apply extra gain !
1442 if( p->txswgain > MAX_VPB_GAIN )
1443 gain_vector(p->txswgain - MAX_VPB_GAIN , (short*)frame->data, frame->datalen/sizeof(short));
1445 res = vpb_play_buf_sync(p->handle, (char*)frame->data, frame->datalen);
1446 if( (res == VPB_OK) && (option_verbose > 4) ) {
1447 short * data = (short*)frame->data;
1448 ast_verbose("%s: Write chan (codec=%d) %d %d\n", p->dev, fmt, data[0],data[1]);
1451 ast_mutex_unlock(&p->play_lock);
1455 /* Read monitor thread function. */
1456 static void *do_chanreads(void *pvt)
1458 struct vpb_pvt *p = (struct vpb_pvt *)pvt;
1459 struct ast_frame *fr = &p->fr;
1460 char *readbuf = ((char *)p->buf) + AST_FRIENDLY_OFFSET;
1462 int afmt, readlen, res, fmt;
1464 char * getdtmf_var = NULL;
1466 fr->frametype = AST_FRAME_VOICE;
1469 fr->samples = VPB_SAMPLES;
1470 fr->offset = AST_FRIENDLY_OFFSET;
1471 memset(p->buf, 0, sizeof p->buf);
1473 ast_mutex_lock(&p->record_lock);
1476 while (!p->stopreads && p->owner) {
1478 ast_mutex_lock(&p->lock); {
1480 if (p->bridge->c0 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_0))
1482 else if (p->bridge->c1 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_1))
1489 } ast_mutex_unlock(&p->lock);
1491 if ( (p->owner->_state != AST_STATE_UP) || !bridgerec) {
1496 // Voicetronix DTMF detection can be triggered off ordinary speech
1497 // This leads to annoying beeps during the conversation
1498 // Avoid this problem by just setting VPB_GETDTMF when you want to listen for DTMF
1500 ignore_dtmf = 0; /* set this to 1 to turn this feature on */
1501 getdtmf_var = pbx_builtin_getvar_helper(p->owner,"VPB_GETDTMF");
1502 if( getdtmf_var && ( strcasecmp( getdtmf_var, "yes" ) == 0 ) )
1505 if( ignore_dtmf != p->last_ignore_dtmf ) {
1506 if(option_verbose>1)
1507 ast_verbose( VERBOSE_PREFIX_2 "%s:Now %s DTMF \n",
1508 p->dev, ignore_dtmf ? "ignoring" : "listening for");
1509 vpb_set_event_mask(p->handle, ignore_dtmf ? VPB_EVENTS_NODTMF : VPB_EVENTS_ALL );
1511 p->last_ignore_dtmf = ignore_dtmf;
1513 // Play DTMF digits here to avoid problem you get if playing a digit during
1514 // a record operation
1515 ast_mutex_lock(&p->play_dtmf_lock);
1516 if( p->play_dtmf[0] ) {
1517 // Try to ignore DTMF event we get after playing digit
1518 // This DTMF is played by asterisk and leads to an annoying trailing beep on CISCO phones
1520 vpb_set_event_mask(p->handle, VPB_EVENTS_NODTMF );
1521 vpb_dial_sync(p->handle,p->play_dtmf);
1522 if(option_verbose>1)
1523 ast_verbose( VERBOSE_PREFIX_2 "%s: Played DTMF %s\n",p->dev,p->play_dtmf);
1524 p->play_dtmf[0] = '\0';
1525 ast_mutex_unlock(&p->play_dtmf_lock);
1526 vpb_sleep(700); // Long enough to miss echo and DTMF event
1528 vpb_set_event_mask(p->handle, VPB_EVENTS_ALL );
1531 ast_mutex_unlock(&p->play_dtmf_lock);
1533 afmt = (p->owner) ? p->owner->pvt->rawreadformat : AST_FORMAT_SLINEAR;
1534 fmt = ast2vpbformat(afmt);
1536 ast_log(LOG_WARNING,"%s: Record failure (unsupported format %d)\n", p->dev, afmt);
1539 readlen = VPB_SAMPLES * astformatbits(afmt) / 8;
1541 if (p->lastinput == -1) {
1542 vpb_record_buf_start(p->handle, fmt);
1543 vpb_reset_record_fifo_alarm(p->handle);
1544 if(option_verbose>1)
1545 ast_verbose( VERBOSE_PREFIX_2 "%s: Starting record mode (codec=%d)\n",p->dev,fmt);
1546 } else if (p->lastinput != fmt) {
1547 vpb_record_buf_finish(p->handle);
1548 vpb_record_buf_start(p->handle, fmt);
1549 if(option_verbose>1)
1550 ast_verbose( VERBOSE_PREFIX_2 "%s: Changed record format (%d=>%d)\n",p->dev,p->lastinput,fmt);
1554 /* Read only if up and not bridged, or a bridge for which we can read. */
1555 if( (res = vpb_record_buf_sync(p->handle, readbuf, readlen) ) == VPB_OK ) {
1556 // Apply extra gain !
1557 if( p->rxswgain > MAX_VPB_GAIN )
1558 gain_vector(p->rxswgain - MAX_VPB_GAIN , (short*)readbuf, readlen/sizeof(short));
1560 fr->subclass = afmt;
1562 fr->datalen = readlen;
1564 // Using trylock here to prevent deadlock when channel is hungup
1565 // (ast_hangup() immediately gets lock)
1566 if (p->owner && !p->stopreads ) {
1567 ast_queue_frame(p->owner, fr);
1568 if (option_verbose > 4) {
1569 short * data = (short*)readbuf;
1570 ast_verbose("%s: Read channel (codec=%d) %d %d\n", p->dev, fmt, data[0], data[1] );
1574 ast_log(LOG_WARNING,"%s: Record failure (%s)\n", p->dev, vpb_strerror(res));
1575 vpb_record_buf_finish(p->handle);
1576 vpb_record_buf_start(p->handle, fmt);
1580 /* When stopreads seen, go away! */
1581 vpb_record_buf_finish(p->handle);
1582 ast_mutex_unlock(&p->record_lock);
1584 if (option_verbose > 1)
1585 ast_verbose(VERBOSE_PREFIX_2 "%s: Ending record mode (%d/%s)\n",
1586 p->dev, p->stopreads, p->owner? "yes" : "no");
1590 static struct ast_channel *vpb_new(struct vpb_pvt *i, int state, char *context)
1592 struct ast_channel *tmp;
1595 ast_log(LOG_WARNING, "Called vpb_new on owned channel (%s) ?!\n", i->dev);
1599 tmp = ast_channel_alloc(1);
1601 strncpy(tmp->name, i->dev, sizeof(tmp->name));
1604 // Linear is the preferred format. Although Voicetronix supports other formats
1605 // they are all converted to/from linear in the vpb code. Best for us to use
1606 // linear since we can then adjust volume in this modules.
1607 tmp->nativeformats = prefformat;
1608 tmp->pvt->rawreadformat = AST_FORMAT_SLINEAR;
1609 tmp->pvt->rawwriteformat = AST_FORMAT_SLINEAR;
1610 ast_setstate(tmp, state);
1611 if (state == AST_STATE_RING)
1614 /* set Call backs */
1615 tmp->pvt->send_digit = vpb_digit;
1616 tmp->pvt->call = vpb_call;
1617 tmp->pvt->hangup = vpb_hangup;
1618 tmp->pvt->answer = vpb_answer;
1619 tmp->pvt->read = vpb_read;
1620 tmp->pvt->write = vpb_write;
1621 tmp->pvt->bridge = vpb_bridge;
1622 tmp->pvt->indicate = vpb_indicate;
1623 tmp->pvt->fixup = vpb_fixup;
1625 strncpy(tmp->context, context, sizeof(tmp->context)-1);
1627 strncpy(tmp->exten, i->ext, sizeof(tmp->exten)-1);
1629 strncpy(tmp->exten, "s", sizeof(tmp->exten) - 1);
1630 if (strlen(i->language))
1631 strncpy(tmp->language, i->language, sizeof(tmp->language)-1);
1638 i->last_ignore_dtmf = 1;
1640 i->play_dtmf[0] = '\0';
1642 i->lastgrunt = get_time_in_ms(); /* Assume at least one grunt tone seen now. */
1644 ast_mutex_lock(&usecnt_lock);
1646 ast_mutex_unlock(&usecnt_lock);
1647 ast_update_use_count();
1648 if (state != AST_STATE_DOWN) {
1649 if (ast_pbx_start(tmp)) {
1650 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
1655 ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
1660 static struct ast_channel *vpb_request(char *type, int format, void *data)
1664 struct ast_channel *tmp = NULL;
1665 char *name = strdup(data ? (char *)data : "");
1670 format &= prefformat;
1672 ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat);
1677 s = strsep(&sepstr, "/"); /* Handle / issues */
1680 /* Check if we are looking for a group */
1681 if (toupper(name[0]) == 'G' || toupper(name[0])=='R') {
1684 /* Search for an unowned channel */
1685 ast_mutex_lock(&iflock); {
1689 if (strncmp(s, p->dev + 4, sizeof p->dev) == 0) {
1691 tmp = vpb_new(p, AST_STATE_DOWN, p->context);
1697 if ((p->group == group) && (!p->owner)) {
1698 tmp = vpb_new(p, AST_STATE_DOWN, p->context);
1704 } ast_mutex_unlock(&iflock);
1707 if (option_verbose > 1)
1708 ast_verbose(VERBOSE_PREFIX_2 " %s requested, got: [%s]\n",
1709 name, tmp ? tmp->name : "None");
1717 static float parse_gain_value(char *gain_type, char *value)
1721 /* try to scan number */
1722 if (sscanf(value, "%f", &gain) != 1)
1724 ast_log(LOG_ERROR, "Invalid %s value '%s' in '%s' config\n", value, gain_type, config);
1725 return DEFAULT_GAIN;
1730 //if (value[strlen(value) - 1] == '%')
1731 // return gain / (float)100;
1738 struct ast_config *cfg;
1739 struct ast_variable *v;
1740 struct vpb_pvt *tmp;
1741 int board = 0, group = 0;
1742 int mode = MODE_IMMEDIATE;
1743 float txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN;
1744 float txswgain = 0, rxswgain = 0;
1745 int first_channel = 1;
1746 int echo_cancel = DEFAULT_ECHO_CANCEL;
1747 int error = 0; /* Error flag */
1748 int bal1 = -1; // Special value - means do not set
1751 char * callerid = NULL;
1753 cfg = ast_load(config);
1755 /* We *must* have a config file otherwise stop immediately */
1757 ast_log(LOG_ERROR, "Unable to load config %s\n", config);
1761 vpb_seterrormode(VPB_ERROR_CODE);
1763 ast_mutex_lock(&iflock); {
1764 v = ast_variable_browse(cfg, "interfaces");
1766 /* Create the interface list */
1767 if (strcasecmp(v->name, "board") == 0) {
1768 board = atoi(v->value);
1769 } else if (strcasecmp(v->name, "group") == 0){
1770 group = atoi(v->value);
1771 } else if (strcasecmp(v->name, "useloopdrop") == 0){
1772 UseLoopDrop = atoi(v->value);
1773 } else if (strcasecmp(v->name, "channel") == 0) {
1774 int channel = atoi(v->value);
1775 tmp = mkif(board, channel, mode, txgain, rxgain, txswgain, rxswgain, bal1, bal2, bal3, callerid, echo_cancel,group);
1778 mkbrd( tmp->vpb_model, echo_cancel );
1785 "Unable to register channel '%s'\n", v->value);
1790 } else if (strcasecmp(v->name, "language") == 0) {
1791 strncpy(language, v->value, sizeof(language)-1);
1792 } else if (strcasecmp(v->name, "callerid") == 0) {
1793 callerid = strdup(v->value);
1794 } else if (strcasecmp(v->name, "mode") == 0) {
1795 if (strncasecmp(v->value, "di", 2) == 0)
1796 mode = MODE_DIALTONE;
1797 else if (strncasecmp(v->value, "im", 2) == 0)
1798 mode = MODE_IMMEDIATE;
1799 else if (strncasecmp(v->value, "fx", 2) == 0)
1802 ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value);
1803 } else if (!strcasecmp(v->name, "context")) {
1804 strncpy(context, v->value, sizeof(context)-1);
1805 } else if (!strcasecmp(v->name, "echocancel")) {
1806 if (!strcasecmp(v->value, "off"))
1808 } else if (strcasecmp(v->name, "txgain") == 0) {
1809 txswgain = parse_gain_value(v->name, v->value);
1810 } else if (strcasecmp(v->name, "rxgain") == 0) {
1811 rxswgain = parse_gain_value(v->name, v->value);
1812 } else if (strcasecmp(v->name, "txhwgain") == 0) {
1813 txgain = parse_gain_value(v->name, v->value);
1814 } else if (strcasecmp(v->name, "rxhwgain") == 0) {
1815 rxgain = parse_gain_value(v->name, v->value);
1816 } else if (strcasecmp(v->name, "bal1") == 0) {
1817 bal1 = strtol(v->value, NULL, 16);
1818 if(bal1<0 || bal1>255) {
1819 ast_log(LOG_WARNING, "Bad bal1 value: %d\n", bal1);
1822 } else if (strcasecmp(v->name, "bal2") == 0) {
1823 bal2 = strtol(v->value, NULL, 16);
1824 if(bal2<0 || bal2>255) {
1825 ast_log(LOG_WARNING, "Bad bal2 value: %d\n", bal2);
1828 } else if (strcasecmp(v->name, "bal3") == 0) {
1829 bal3 = strtol(v->value, NULL, 16);
1830 if(bal3<0 || bal3>255) {
1831 ast_log(LOG_WARNING, "Bad bal3 value: %d\n", bal3);
1834 } else if (strcasecmp(v->name, "grunttimeout") == 0) {
1835 gruntdetect_timeout = 1000*atoi(v->value);
1840 if (gruntdetect_timeout < 1000)
1841 gruntdetect_timeout = 1000;
1844 } ast_mutex_unlock(&iflock);
1848 if (!error && ast_channel_register(type, tdesc, prefformat, vpb_request) != 0) {
1849 ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
1857 restart_monitor(); /* And start the monitor for the first time */
1866 /* First, take us out of the channel loop */
1867 ast_channel_unregister(type);
1869 ast_mutex_lock(&iflock); {
1870 /* Hangup all interfaces if they have an owner */
1874 ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
1878 } ast_mutex_unlock(&iflock);
1880 ast_mutex_lock(&monlock); {
1881 if (mthreadactive > -1) {
1882 pthread_cancel(monitor_thread);
1883 pthread_join(monitor_thread, NULL);
1886 } ast_mutex_unlock(&monlock);
1888 ast_mutex_lock(&iflock); {
1889 /* Destroy all the interfaces and free their memory */
1893 ast_mutex_destroy(&p->lock);
1894 pthread_cancel(p->readthread);
1895 ast_mutex_destroy(&p->record_lock);
1896 ast_mutex_destroy(&p->play_lock);
1897 ast_mutex_destroy(&p->play_dtmf_lock);
1898 ast_mutex_destroy(&p->owner_lock);
1901 vpb_close(p->handle);
1903 iflist = iflist->next;
1908 } ast_mutex_unlock(&iflock);
1910 ast_mutex_lock(&bridge_lock); {
1911 memset(bridges, 0, sizeof bridges);
1912 } ast_mutex_unlock(&bridge_lock);
1913 ast_mutex_destroy(&bridge_lock);
1922 ast_mutex_lock(&usecnt_lock);
1924 ast_mutex_unlock(&usecnt_lock);
1935 return ASTERISK_GPL_KEY;
1938 #if defined(__cplusplus) || defined(c_plusplus)