/ fixed bug when using AST caller ID functions, shouldnt be trying to write
[asterisk/asterisk.git] / channels / chan_vpb.c
1 /*
2  * Asterisk -- A telephony toolkit for Linux.
3  *
4  * VoiceTronix Interface driver
5  * 
6  * Copyright (C) 2003, Paul Bagyenda
7  * Paul Bagyenda <bagyenda@dsmagic.com>
8  * Copyright (C) 2004, Ben Kramer
9  * Ben Kramer <ben@voicetronix.com.au>
10  *
11  * Daniel Bichara <daniel@bichara.com.br> - Brazilian CallerID detection (c)2004 
12  *
13  * Welber Silveira - welberms@magiclink.com.br - (c)2004
14  * Copying CLID string to propper structure after detection
15  *
16  * This program is free software, distributed under the terms of
17  * the GNU General Public License
18  */
19
20
21 extern "C" {
22
23 #include <stdio.h>
24 #include <string.h>
25 #include <asterisk/lock.h>
26 #include <asterisk/utils.h>
27 #include <asterisk/channel.h>
28 #include <asterisk/channel_pvt.h>
29 #include <asterisk/config.h>
30 #include <asterisk/logger.h>
31 #include <asterisk/module.h>
32 #include <asterisk/pbx.h>
33 #include <asterisk/options.h>
34 #include <asterisk/callerid.h>
35
36 }
37
38 #include <sys/socket.h>
39 #include <sys/time.h>
40 #include <errno.h>
41 #include <unistd.h>
42 #include <stdlib.h>
43 #include <arpa/inet.h>
44 #include <fcntl.h>
45 #include <sys/ioctl.h>
46 #include <ctype.h>
47
48 #include <vpbapi.h>
49 #include <assert.h>
50
51 #ifdef pthread_create
52 #undef pthread_create
53 #endif
54
55 #define DEFAULT_GAIN 0
56 #define DEFAULT_ECHO_CANCEL 1
57   
58 #define VPB_SAMPLES 160 
59 #define VPB_MAX_BUF VPB_SAMPLES*4 + AST_FRIENDLY_OFFSET
60
61 #define VPB_NULL_EVENT 200
62
63 #define VPB_WAIT_TIMEOUT 4000
64
65 #define MAX_VPB_GAIN 12.0
66
67 #define DTMF_CALLERID  
68 #define DTMF_CID_START 'D'
69 #define DTMF_CID_STOP 'C'
70
71 /**/
72 #if defined(__cplusplus) || defined(c_plusplus)
73  extern "C" {
74 #endif
75 /**/
76
77 static char *desc = "VoiceTronix V6PCI/V12PCI/V4PCI  API Support";
78 static char *type = "vpb";
79 static char *tdesc = "Standard VoiceTronix API Driver";
80 static char *config = "vpb.conf";
81
82 /* Default context for dialtone mode */
83 static char context[AST_MAX_EXTENSION] = "default";
84
85 /* Default language */
86 static char language[MAX_LANGUAGE] = "";
87 static int usecnt =0;
88
89 static int gruntdetect_timeout = 3600000; /* Grunt detect timeout is 1hr. */
90
91 static const int prefformat = AST_FORMAT_SLINEAR;
92
93 AST_MUTEX_DEFINE_STATIC(usecnt_lock);
94
95 /* Protect the interface list (of vpb_pvt's) */
96 AST_MUTEX_DEFINE_STATIC(iflock);
97
98 /* Protect the monitoring thread, so only one process can kill or start it, and not
99    when it's doing something critical. */
100 AST_MUTEX_DEFINE_STATIC(monlock);
101
102 /* This is the thread for the monitor which checks for input on the channels
103    which are not currently in use.  */
104 static pthread_t monitor_thread;
105
106 static int mthreadactive = -1; /* Flag for monitoring monitorthread.*/
107
108
109 static int restart_monitor(void);
110
111 /* The private structures of the VPB channels are 
112    linked for selecting outgoing channels */
113    
114 #define MODE_DIALTONE   1
115 #define MODE_IMMEDIATE  2
116 #define MODE_FXO        3
117
118 /* Pick a country or add your own! */
119 /* These are the tones that are played to the user */
120 #define TONES_AU
121 /* #define TONES_USA */
122
123 #ifdef TONES_AU
124 static VPB_TONE Dialtone     = {440,    440,    440,    -10,    -10,    -10,    5000,   0   };
125 static VPB_TONE Busytone     = {470,    0,      0,      -10,    -100,   -100,   5000,   0 };
126 static VPB_TONE Ringbacktone = {400,    50,     440,    -10,    -10,    -10,    1400,   800 };
127 #endif
128 #ifdef TONES_USA
129 static VPB_TONE Dialtone     = {350, 440,   0, -16,   -16, -100, 10000,    0};
130 static VPB_TONE Busytone     = {480, 620,   0, -10,   -10, -100,   500,  500};
131 static VPB_TONE Ringbacktone = {440, 480,   0, -20,   -20, -100,  2000, 4000};
132 #endif
133
134 /* grunt tone defn's */
135 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 } } };
136 static VPB_DETECT toned_ungrunt = { 2, VPB_GRUNT, 1, 2000, 1, 0, 0, -40, 0, 0, 30, 40, { { 0, 0, 0, 0 } } };
137
138 /* Use loop drop detection */
139 static int UseLoopDrop=1;
140
141 /* To use or not to use Native bridging */
142 static int UseNativeBridge=1;
143
144 /* Use Asterisk Indication or VPB */
145 static int use_ast_ind=0;
146
147 #define TIMER_PERIOD_RINGBACK 2000
148 #define TIMER_PERIOD_BUSY 700
149           
150 #define VPB_EVENTS_ALL (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
151                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
152                         |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
153 #define VPB_EVENTS_NODROP (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
154                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
155                         |VPB_MRING_OFF|VPB_MSTATION_FLASH)
156 #define VPB_EVENTS_NODTMF (VPB_MRING|VPB_MDIGIT|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
157                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
158                         |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
159 #define VPB_EVENTS_STAT (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
160                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
161                         |VPB_MRING_OFF|VPB_MSTATION_FLASH)
162
163
164 /* Dialing parameters for Australia */
165 /* #define DIAL_WITH_CALL_PROGRESS */
166 VPB_TONE_MAP DialToneMap[] = {  { VPB_BUSY_AUST, VPB_CALL_DISCONNECT, 0 },
167                                 { VPB_DIAL, VPB_CALL_DIALTONE, 0 },
168                                 { VPB_RINGBACK_308, VPB_CALL_RINGBACK, 0 },
169                                 { VPB_BUSY_AUST, VPB_CALL_BUSY, 0 },
170                                 { VPB_GRUNT, VPB_CALL_GRUNT, 0 },
171                                 { 0, 0, 1 } };
172 #define VPB_DIALTONE_WAIT 2000 /* Wait up to 2s for a dialtone */
173 #define VPB_RINGWAIT 4000 /* Wait up to 4s for ring tone after dialing */
174 #define VPB_CONNECTED_WAIT 4000 /* If no ring tone detected for 4s then consider call connected */
175 #define TIMER_PERIOD_NOANSWER 120000 /* Let it ring for 120s before deciding theres noone there */
176
177 #define MAX_BRIDGES_V4PCI 2
178 #define MAX_BRIDGES_V12PCI 128
179
180 /* port states */
181 #define VPB_STATE_ONHOOK        0
182 #define VPB_STATE_OFFHOOK       1
183 #define VPB_STATE_DIALLING      2
184 #define VPB_STATE_JOINED        3
185 #define VPB_STATE_GETDTMF       4
186 #define VPB_STATE_PLAYDIAL      5
187 #define VPB_STATE_PLAYBUSY      6
188 #define VPB_STATE_PLAYRING      7
189
190
191 typedef struct  {
192         int inuse;
193         struct ast_channel *c0, *c1, **rc;
194         struct ast_frame **fo;
195         int flags;
196         ast_mutex_t lock;
197         pthread_cond_t cond;
198         int endbridge;
199 } vpb_bridge_t;
200
201 static vpb_bridge_t * bridges;
202 static int max_bridges = MAX_BRIDGES_V4PCI;
203
204 AST_MUTEX_DEFINE_STATIC(bridge_lock);
205
206 typedef enum {
207         vpb_model_unknown = 0, 
208         vpb_model_v4pci,
209         vpb_model_v12pci
210 } vpb_model_t;
211
212 static struct vpb_pvt {
213
214         ast_mutex_t owner_lock;                 /* Protect blocks that expect ownership to remain the same */
215         struct ast_channel *owner;              /* Channel who owns us, possibly NULL */
216
217         int golock;                             /* Got owner lock ? */
218
219         int mode;                               /* fxo/imediate/dialtone*/
220         int handle;                             /* Handle for vpb interface */
221
222         int state;                              /* used to keep port state (internal to driver) */
223
224         int group;                              /* Which group this port belongs to */
225
226         char dev[256];                          /* Device name, eg vpb/1-1 */
227         vpb_model_t vpb_model;                  /* card model */
228
229         struct ast_frame f, fr;                 /* Asterisk frame interface */
230         char buf[VPB_MAX_BUF];                  /* Static buffer for reading frames */
231
232         int dialtone;                           /* NOT USED */
233         float txgain, rxgain;                   /* Hardware gain control */
234         float txswgain, rxswgain;               /* Software gain control */
235
236         int wantdtmf;                           /* Waiting for DTMF. */
237         char context[AST_MAX_EXTENSION];        /* The context for this channel */
238
239         char ext[AST_MAX_EXTENSION];            /* DTMF buffer for the ext[ens] */
240         char language[MAX_LANGUAGE];            /* language being used */
241         char callerid[AST_MAX_EXTENSION];       /* CallerId used for directly connected phone */
242
243         int dtmf_caller_pos;                    /* DTMF CallerID detection (Brazil)*/
244
245         int lastoutput;                         /* Holds the last Audio format output'ed */
246         int lastinput;                          /* Holds the last Audio format input'ed */
247         int last_ignore_dtmf;
248
249         void *busy_timer;                       /* Void pointer for busy vpb_timer */
250         int busy_timer_id;                      /* unique timer ID for busy timer */
251
252         void *ringback_timer;                   /* Void pointer for ringback vpb_timer */
253         int ringback_timer_id;                  /* unique timer ID for ringback timer */
254
255         double lastgrunt;                       /* time stamp (secs since epoc) of last grunt event */
256
257         ast_mutex_t lock;                       /* This one just protects bridge ptr below */
258         vpb_bridge_t *bridge;
259
260         int stopreads;                          /* Stop reading...*/
261         int read_state;                         /* Read state */
262         int chuck_count;                        /* a count of packets weve chucked away!*/
263         pthread_t readthread;                   /* For monitoring read channel. One per owned channel. */
264
265         ast_mutex_t record_lock;                /* This one prevents reentering a record_buf block */
266         ast_mutex_t play_lock;                  /* This one prevents reentering a play_buf block */
267         int  play_buf_time;                     /* How long the last play_buf took */
268
269         ast_mutex_t play_dtmf_lock;
270         char play_dtmf[16];
271
272         struct vpb_pvt *next;                   /* Next channel in list */
273
274 } *iflist = NULL;
275
276 static struct ast_channel *vpb_new(struct vpb_pvt *i, int state, char *context);
277 static void *do_chanreads(void *pvt);
278
279 /* Can't get vpb_bridge() working on v4pci without either a horrible 
280 *  high pitched feedback noise or bad hiss noise depending on gain settings
281 *  Get asterisk to do the bridging
282 */
283 #define BAD_V4PCI_BRIDGE
284
285 /* This one enables a half duplex bridge which may be required to prevent high pitched
286  * feedback when getting asterisk to do the bridging and when using certain gain settings.
287  */
288 /* #define HALF_DUPLEX_BRIDGE */
289
290 /* This is the Native bridge code, which Asterisk will try before using its own bridging code */
291 static int vpb_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc)
292 {
293         struct vpb_pvt *p0 = (struct vpb_pvt *)c0->pvt->pvt;
294         struct vpb_pvt *p1 = (struct vpb_pvt *)c1->pvt->pvt;
295         int i, res;
296
297         struct ast_channel *cs[3];
298         struct ast_channel *who;
299         int to = -1;
300         struct ast_frame *f;
301
302         cs[0] = c0;
303         cs[1] = c1;
304
305         #ifdef BAD_V4PCI_BRIDGE
306         if(p0->vpb_model==vpb_model_v4pci)
307                 return -2;
308         #endif
309         if ( UseNativeBridge != 1){
310                 return -2;
311         }
312
313 /*
314         ast_mutex_lock(&p0->lock);
315         ast_mutex_lock(&p1->lock);
316 */
317
318         /* Bridge channels, check if we can.  I believe we always can, so find a slot.*/
319
320         ast_mutex_lock(&bridge_lock); {
321                 for (i = 0; i < max_bridges; i++) 
322                         if (!bridges[i].inuse)
323                                 break;
324                 if (i < max_bridges) {
325                         bridges[i].inuse = 1;
326                         bridges[i].endbridge = 0;
327                         bridges[i].flags = flags;
328                         bridges[i].rc = rc;
329                         bridges[i].fo = fo;
330                         bridges[i].c0 = c0;
331                         bridges[i].c1 = c1;
332                 }              
333         } ast_mutex_unlock(&bridge_lock); 
334
335         if (i == max_bridges) {
336                 ast_log(LOG_WARNING, "vpb_bridge: Failed to bridge %s and %s!\n", c0->name, c1->name);
337                 ast_mutex_unlock(&p0->lock);
338                 ast_mutex_unlock(&p1->lock);
339                 return -2;
340         } else {
341                 /* Set bridge pointers. You don't want to take these locks while holding bridge lock.*/
342                 ast_mutex_lock(&p0->lock); {
343                         p0->bridge = &bridges[i];
344                 } ast_mutex_unlock(&p0->lock);
345
346                 ast_mutex_lock(&p1->lock); {
347                         p1->bridge = &bridges[i];
348                 } ast_mutex_unlock(&p1->lock);
349
350                 if (option_verbose>1) 
351                         ast_verbose(VERBOSE_PREFIX_2 "vpb_bridge: Bridging call entered with [%s, %s]\n", c0->name, c1->name);
352         }
353
354         #ifdef HALF_DUPLEX_BRIDGE
355
356         if (option_verbose>1) 
357                 ast_verbose(VERBOSE_PREFIX_2 "vpb_bridge: Starting half-duplex bridge [%s, %s]\n", c0->name, c1->name);
358
359         int dir = 0;
360
361         memset(p0->buf, 0, sizeof p0->buf);
362         memset(p1->buf, 0, sizeof p1->buf);
363
364         vpb_record_buf_start(p0->handle, VPB_ALAW);
365         vpb_record_buf_start(p1->handle, VPB_ALAW);
366
367         vpb_play_buf_start(p0->handle, VPB_ALAW);
368         vpb_play_buf_start(p1->handle, VPB_ALAW);
369
370         while( !bridges[i].endbridge ) {
371                 struct vpb_pvt *from, *to;
372                 if(++dir%2) {
373                         from = p0;
374                         to = p1;
375                 } else {
376                         from = p1;
377                         to = p0;
378                 }
379                 vpb_record_buf_sync(from->handle, from->buf, VPB_SAMPLES);
380                 vpb_play_buf_sync(to->handle, from->buf, VPB_SAMPLES);
381         }
382
383         vpb_record_buf_finish(p0->handle);
384         vpb_record_buf_finish(p1->handle);
385
386         vpb_play_buf_finish(p0->handle);
387         vpb_play_buf_finish(p1->handle);
388
389         if (option_verbose>1) 
390                 ast_verbose(VERBOSE_PREFIX_2 "vpb_bridge: Finished half-duplex bridge [%s, %s]\n", c0->name, c1->name);
391
392         res = VPB_OK;
393
394         #else
395
396         res = vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_ON, i+1 /* resource 1 & 2 only for V4PCI*/ );
397         if (res == VPB_OK) {
398                 /* pthread_cond_wait(&bridges[i].cond, &bridges[i].lock);*/ /* Wait for condition signal. */
399                 while( !bridges[i].endbridge ) {
400                         /* Are we really ment to be doing nothing ?!?! */
401                         who = ast_waitfor_n(cs, 2, &to);
402                         if (!who) {
403                                 ast_log(LOG_DEBUG, "vpb_bridge: Empty frame read...\n");
404                                 /* check for hangup / whentohangup */
405                                 if (ast_check_hangup(c0) || ast_check_hangup(c1))
406                                         break;
407                                 continue;
408                         }
409                         f = ast_read(who);
410                         if (!f || ((f->frametype == AST_FRAME_DTMF) &&
411                                            (((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) || 
412                                        ((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1))))) {
413                                 *fo = f;
414                                 *rc = who;
415                                 ast_log(LOG_DEBUG, "vpb_bridge: Got a [%s]\n", f ? "digit" : "hangup");
416 /*
417                                 if ((c0->pvt->pvt == pvt0) && (!c0->_softhangup)) {
418                                         if (pr0->set_rtp_peer(c0, NULL, NULL, 0)) 
419                                                 ast_log(LOG_WARNING, "Channel '%s' failed to revert\n", c0->name);
420                                 }
421                                 if ((c1->pvt->pvt == pvt1) && (!c1->_softhangup)) {
422                                         if (pr1->set_rtp_peer(c1, NULL, NULL, 0)) 
423                                                 ast_log(LOG_WARNING, "Channel '%s' failed to revert back\n", c1->name);
424                                 }
425 */
426                                 /* That's all we needed */
427                                 /*return 0; */
428                                 break;
429                         } else {
430                                 if ((f->frametype == AST_FRAME_DTMF) || 
431                                         (f->frametype == AST_FRAME_VOICE) || 
432                                         (f->frametype == AST_FRAME_VIDEO)) 
433                                         {
434                                         /* Forward voice or DTMF frames if they happen upon us */
435                                         /* Actually I dont think we want to forward on any frames!
436                                         if (who == c0) {
437                                                 ast_write(c1, f);
438                                         } else if (who == c1) {
439                                                 ast_write(c0, f);
440                                         }
441                                         */
442                                 }
443                                 ast_frfree(f);
444                         }
445                         /* Swap priority not that it's a big deal at this point */
446                         cs[2] = cs[0];
447                         cs[0] = cs[1];
448                         cs[1] = cs[2];
449                 };
450                 vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_OFF, i+1 /* resource 1 & 2 only for V4PCI*/ ); 
451         }
452
453         #endif
454
455         ast_mutex_lock(&bridge_lock); {
456                 bridges[i].inuse = 0;
457         } ast_mutex_unlock(&bridge_lock); 
458
459         p0->bridge = NULL;
460         p1->bridge = NULL;
461
462
463         if (option_verbose>1) 
464                 ast_verbose(VERBOSE_PREFIX_2 "Bridging call done with [%s, %s] => %d\n", c0->name, c1->name, res);
465
466 /*
467         ast_mutex_unlock(&p0->lock);
468         ast_mutex_unlock(&p1->lock);
469 */
470         return (res==VPB_OK)?0:-1;
471 }
472
473 static double get_time_in_ms()
474 {
475         struct timeval tv;
476         gettimeofday(&tv, NULL);
477         return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000);
478 }
479
480 /* Caller ID can be located in different positions between the rings depending on your Telco
481  * Australian (Telstra) callerid starts 700ms after 1st ring and finishes 1.5s after first ring
482  * Use ANALYSE_CID to record rings and determine location of callerid
483  */
484 /* #define ANALYSE_CID */
485 #define RING_SKIP 600
486 #define CID_MSECS 1700
487
488 static void get_callerid(struct vpb_pvt *p)
489 {
490         short buf[CID_MSECS*8]; /* 8kHz sampling rate */
491         double cid_record_time;
492         int rc;
493         struct ast_channel *owner = p->owner;
494         void * ws;
495         char * file="cidsams.wav";
496
497
498         if( ast_mutex_trylock(&p->record_lock) == 0 ) {
499
500                 char callerid[AST_MAX_EXTENSION] = ""; 
501
502                 cid_record_time = get_time_in_ms();
503                 if (option_verbose>3) 
504                         ast_verbose(VERBOSE_PREFIX_4 "CID record - start\n");
505
506                 /* Skip any trailing ringtone */
507                 vpb_sleep(RING_SKIP);
508
509                 if (option_verbose>3) 
510                         ast_verbose(VERBOSE_PREFIX_4 "CID record - skipped %fms trailing ring\n",
511                                  get_time_in_ms() - cid_record_time);
512                 cid_record_time = get_time_in_ms();
513
514                 /* Record bit between the rings which contains the callerid */
515                 vpb_record_buf_start(p->handle, VPB_LINEAR);
516                 rc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
517                 vpb_record_buf_finish(p->handle);
518 /*
519                 vpb_wave_open_write(&ws, file, VPB_LINEAR);
520                 vpb_wave_write(ws,(char*)buf,sizeof(buf));
521                 vpb_wave_close_write(ws);
522 */
523
524                 if (option_verbose>3) 
525                         ast_verbose(VERBOSE_PREFIX_4 "CID record - recorded %fms between rings\n", 
526                                 get_time_in_ms() - cid_record_time);
527
528                 ast_mutex_unlock(&p->record_lock);
529
530                 if( rc != VPB_OK ) {
531                         ast_log(LOG_ERROR, "Failed to record caller id sample on %s\n", p->dev );
532                         return;
533                 }
534
535                 VPB_CID *cli_struct = new VPB_CID;
536                 cli_struct->ra_cldn[0]=0;
537                 cli_struct->ra_cn[0]=0;
538                 /* This decodes FSK 1200baud type callerid */
539                 if ((rc=vpb_cid_decode2(cli_struct, buf, CID_MSECS*8)) == VPB_OK ) {
540                         if (owner->cid.cid_num)
541                                 free(owner->cid.cid_num);
542                         owner->cid.cid_num=NULL;
543                         if (owner->cid.cid_name)
544                                 free(owner->cid.cid_name);
545                         owner->cid.cid_name=NULL;
546                         
547                         if (cli_struct->ra_cldn[0]=='\0'){
548                                 owner->cid.cid_num = strdup(cli_struct->cldn);
549                                 owner->cid.cid_name = strdup(cli_struct->cn);
550                                 if (option_verbose>3) 
551                                         ast_verbose(VERBOSE_PREFIX_4 "CID record - got [%s] [%s]\n",owner->cid.cid_num,owner->cid.cid_name );
552                         }
553                         else {
554                                 ast_log(LOG_ERROR,"CID record - No caller id avalable on %s \n", p->dev);
555                         }
556
557                 } else {
558                         ast_log(LOG_ERROR, "CID record - Failed to decode caller id on %s - %s\n", p->dev, vpb_strerror(rc) );
559                         strncpy(callerid,"unknown", sizeof(callerid) - 1);
560                 }
561                 delete cli_struct;
562
563         } else 
564                 ast_log(LOG_ERROR, "CID record - Failed to set record mode for caller id on %s\n", p->dev );
565 }
566 static void get_callerid_ast(struct vpb_pvt *p)
567 {
568         struct callerid_state *cs;
569         char buf[1024];
570         char *name=NULL, *number=NULL;
571         int flags;
572         int rc=0,vrc;
573         int sam_count=0;
574         struct ast_channel *owner = p->owner;
575         float old_gain;
576         int which_cid;
577         void * ws;
578         char * file="cidsams.wav";
579
580         if(!strcasecmp(p->callerid, "on")) {
581         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collected caller ID already\n");
582                 return;
583         }
584         else if(!strcasecmp(p->callerid, "v23")) {
585                 which_cid=CID_SIG_V23;
586         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID v23[%s/%d]...\n",p->callerid,which_cid);
587         }
588         else if(!strcasecmp(p->callerid, "bell")) {
589                 which_cid=CID_SIG_BELL;
590         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID bell[%s/%d]...\n",p->callerid,which_cid);
591         }
592         else {
593                 if (option_verbose>3) 
594                         ast_verbose(VERBOSE_PREFIX_4 "Caller ID disabled\n");
595                 return;
596         }
597         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID type[%s/%d]...\n",p->callerid,which_cid);
598 /*      vpb_sleep(RING_SKIP); */
599 /*      vpb_record_get_gain(p->handle, &old_gain); */
600         cs = callerid_new(which_cid);
601         if (cs){
602 /*              vpb_wave_open_write(&ws, file, VPB_MULAW); */
603 /*              vpb_record_set_gain(p->handle, 3.0); */
604 /*              vpb_record_set_hw_gain(p->handle,12.0); */
605                 vpb_record_buf_start(p->handle, VPB_MULAW);
606                 while((rc == 0)&&(sam_count<8000*3)){
607                         vrc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
608                         if (vrc != VPB_OK)
609                                 ast_log(LOG_ERROR, "%s: Caller ID couldnt read audio buffer!\n",p->dev);
610                         rc = callerid_feed(cs,(unsigned char *)buf,sizeof(buf),AST_FORMAT_ULAW);
611 /*                      vpb_wave_write(ws,(char*)buf,sizeof(buf)); */
612                         sam_count+=sizeof(buf);
613                         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID samples [%d][%d]...\n",sam_count,rc);
614                 }
615                 vpb_record_buf_finish(p->handle);
616 /*              vpb_wave_close_write(ws); */
617                 if (rc == 1){
618                         callerid_get(cs, &name, &number, &flags);
619                         if (option_verbose>0) 
620                                 ast_verbose(VERBOSE_PREFIX_1 "%s: Caller ID name [%s] number [%s] flags [%d]\n",p->dev,name, number,flags);
621                 }
622                 else {
623                         ast_log(LOG_ERROR, "%s: Failed to decode Caller ID \n", p->dev );
624                 }
625 /*              vpb_record_set_gain(p->handle, old_gain); */
626 /*              vpb_record_set_hw_gain(p->handle,6.0); */
627         }
628         else {
629                 ast_log(LOG_ERROR, "%s: Failed to create Caller ID struct\n", p->dev );
630         }
631         if (owner->cid.cid_num) {
632                 free(owner->cid.cid_num);
633                 owner->cid.cid_num = NULL;
634         }
635         if (owner->cid.cid_name) {
636                 free(owner->cid.cid_name);
637                 owner->cid.cid_name = NULL;
638         }
639         if (number)
640                 ast_shrink_phone_number(number);
641         if (number && !ast_strlen_zero(number)) {
642                 owner->cid.cid_num = strdup(number);
643                 owner->cid.cid_ani = strdup(number);
644         }
645         if (name && !ast_strlen_zero(name))
646                 owner->cid.cid_name = strdup(name);
647                                                                                                                      
648         if (cs)
649                 callerid_free(cs);
650 }
651
652 /* Terminate any tones we are presently playing */
653 static void stoptone( int handle)
654 {
655         int ret;
656         VPB_EVENT je;
657         while(vpb_playtone_state(handle)!=VPB_OK){
658                 vpb_tone_terminate(handle);
659                 ret = vpb_get_event_ch_async(handle,&je);
660                 if ((ret == VPB_OK)&&(je.type != VPB_DIALEND)){
661                         if (option_verbose > 3){
662                                         ast_verbose(VERBOSE_PREFIX_4 "Stop tone collected a wrong event!![%d]\n",je.type);
663                         }
664 /*                      vpb_put_event(&je); */
665                 }
666                 vpb_sleep(10);
667         }
668 }
669
670 /* Safe vpb_playtone_async */
671 static int playtone( int handle, VPB_TONE *tone)
672 {
673         int ret=VPB_OK;
674         stoptone(handle);
675         if (option_verbose > 3) 
676                 ast_verbose(VERBOSE_PREFIX_4 "[%02d]: Playing tone\n", handle);
677         ret = vpb_playtone_async(handle, tone);
678         return ret;
679 }
680
681 static inline int monitor_handle_owned(struct vpb_pvt *p, VPB_EVENT *e)
682 {
683         struct ast_frame f = {AST_FRAME_CONTROL}; /* default is control, Clear rest. */
684         int endbridge = 0;
685         int res=0;
686
687         if (option_verbose > 3) 
688                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: [%d=>%d]\n",
689                         p->dev, e->type, e->data);
690
691         f.src = type;
692         switch (e->type) {
693                 case VPB_RING:
694                         if (p->mode == MODE_FXO) {
695                                 f.subclass = AST_CONTROL_RING;
696                         } else
697                                 f.frametype = -1; /* ignore ring on station port. */
698                         break;
699
700                 case VPB_RING_OFF:
701                         f.frametype = -1;
702                         break;
703
704                 case VPB_TIMEREXP:
705                         if (e->data == p->busy_timer_id) {
706                                 playtone(p->handle,&Busytone);
707                                 p->state = VPB_STATE_PLAYBUSY;
708                                 vpb_timer_stop(p->busy_timer);
709                                 vpb_timer_start(p->busy_timer);
710                                 f.frametype = -1;
711                         } else if (e->data == p->ringback_timer_id) {
712                                 playtone(p->handle, &Ringbacktone);
713                                 vpb_timer_stop(p->ringback_timer);
714                                 vpb_timer_start(p->ringback_timer);
715                                 f.frametype = -1;
716                         } else {
717                                 f.frametype = -1; /* Ignore. */
718                         }
719                         break;
720
721                 case VPB_DTMF:
722                         if (p->owner->_state == AST_STATE_UP) {
723                                         f.frametype = AST_FRAME_DTMF;
724                                         f.subclass = e->data;
725                         } else
726                                 f.frametype = -1;
727                         break;
728
729                 case VPB_TONEDETECT:
730                         if (e->data == VPB_BUSY || e->data == VPB_BUSY_308 || e->data == VPB_BUSY_AUST ) {
731                                 if (option_verbose > 3) 
732                                         ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: BUSY\n", p->dev);
733                                 if (p->owner->_state == AST_STATE_UP) {
734                                         f.subclass = AST_CONTROL_HANGUP;
735                                 }
736                                 else {
737                                         f.subclass = AST_CONTROL_BUSY;
738                                 }
739                         } else if (e->data == VPB_GRUNT) {
740                                 if( ( get_time_in_ms() - p->lastgrunt ) > gruntdetect_timeout ) {
741                                         /* Nothing heard on line for a very long time
742                                          * Timeout connection */
743                                         if (option_verbose > 2) 
744                                                 ast_verbose(VERBOSE_PREFIX_3 "grunt timeout\n");
745                                         ast_log(LOG_NOTICE,"%s: Line hangup due of lack of conversation\n",p->dev); 
746                                         f.subclass = AST_CONTROL_HANGUP;
747                                 } else {
748                                         p->lastgrunt = get_time_in_ms();
749                                         f.frametype = -1;
750                                 }
751                         } else
752                                 f.frametype = -1;
753                         break;
754
755                 case VPB_CALLEND:
756                         #ifdef DIAL_WITH_CALL_PROGRESS
757                         if (e->data == VPB_CALL_CONNECTED) 
758                                 f.subclass = AST_CONTROL_ANSWER;
759                         else if (e->data == VPB_CALL_NO_DIAL_TONE || e->data == VPB_CALL_NO_RING_BACK)
760                                 f.subclass =  AST_CONTROL_CONGESTION;
761                         else if (e->data == VPB_CALL_NO_ANSWER || e->data == VPB_CALL_BUSY)
762                                 f.subclass = AST_CONTROL_BUSY;
763                         else if (e->data  == VPB_CALL_DISCONNECTED) 
764                                 f.subclass = AST_CONTROL_HANGUP;
765                         #else
766                         ast_log(LOG_NOTICE,"%s: Got call progress callback but blind dialing \n", p->dev); 
767                         f.frametype = -1;
768                         #endif
769                         break;
770
771                 case VPB_STATION_OFFHOOK:
772                         f.subclass = AST_CONTROL_ANSWER;
773                         break;
774
775                 case VPB_DROP:
776                         if ((p->mode == MODE_FXO)&&(UseLoopDrop)){ /* ignore loop drop on stations */
777                                 if (p->owner->_state == AST_STATE_UP) 
778                                         f.subclass = AST_CONTROL_HANGUP;
779                                 else
780                                         f.frametype = -1;
781                         }
782                         break;
783                 case VPB_STATION_ONHOOK:
784                         f.subclass = AST_CONTROL_HANGUP;
785                         break;
786
787                 case VPB_STATION_FLASH:
788                         f.subclass = AST_CONTROL_FLASH;
789                         break;
790
791                 /* Called when dialing has finished and ringing starts
792                  * No indication that call has really been answered when using blind dialing
793                  */
794                 case VPB_DIALEND:
795                         if (p->state < 5){
796                                 f.subclass = AST_CONTROL_ANSWER;
797                                 if (option_verbose > 1) 
798                                         ast_verbose(VERBOSE_PREFIX_2 "%s: Dialend\n", p->dev);
799                         } else {
800                                 f.frametype = -1;
801                         }
802                         break;
803
804                 case VPB_PLAY_UNDERFLOW:
805                         f.frametype = -1;
806                         vpb_reset_play_fifo_alarm(p->handle);
807                         break;
808
809                 case VPB_RECORD_OVERFLOW:
810                         f.frametype = -1;
811                         vpb_reset_record_fifo_alarm(p->handle);
812                         break;
813
814                 default:
815                         f.frametype = -1;
816                         break;
817         }
818
819 /*
820         if (option_verbose > 3) ast_verbose("%s: LOCKING in handle_owned [%d]\n", p->dev,res);
821         res = ast_mutex_lock(&p->lock); 
822         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
823 */
824         {
825                 if (p->bridge) { /* Check what happened, see if we need to report it. */
826                         switch (f.frametype) {
827                                 case AST_FRAME_DTMF:
828                                         if (    !(p->bridge->c0 == p->owner && 
829                                                         (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_0) ) &&
830                                                 !(p->bridge->c1 == p->owner && 
831                                                         (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_1) )) 
832                                                 /* Kill bridge, this is interesting. */
833                                                 endbridge = 1;
834                                         break;
835
836                                 case AST_FRAME_CONTROL:
837                                         if (!(p->bridge->flags & AST_BRIDGE_IGNORE_SIGS)) 
838                                         #if 0
839                                         if (f.subclass == AST_CONTROL_BUSY ||
840                                         f.subclass == AST_CONTROL_CONGESTION ||
841                                         f.subclass == AST_CONTROL_HANGUP ||
842                                         f.subclass == AST_CONTROL_FLASH)
843                                         #endif
844                                                 endbridge = 1;
845                                         break;
846
847                                 default:
848                                         break;
849                         }
850                         if (endbridge) {
851                                 if (p->bridge->fo)
852                                         *p->bridge->fo = ast_frisolate(&f);
853                                 if (p->bridge->rc)
854                                         *p->bridge->rc = p->owner;
855
856                                 ast_mutex_lock(&p->bridge->lock); {
857                                         p->bridge->endbridge = 1;
858                                         pthread_cond_signal(&p->bridge->cond);
859                                 } ast_mutex_unlock(&p->bridge->lock);                      
860                         }         
861                 }
862         } 
863
864         if (endbridge){
865                 res = ast_mutex_unlock(&p->lock);
866 /*
867                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res);
868 */
869                 return 0;
870         }
871
872         if (option_verbose > 3) 
873                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: Prepared frame type[%d]subclass[%d], bridge=%p owner=[%s]\n",
874                         p->dev, f.frametype, f.subclass, (void *)p->bridge, p->owner->name);
875
876         /* Trylock used here to avoid deadlock that can occur if we
877          * happen to be in here handling an event when hangup is called
878          * Problem is that hangup holds p->owner->lock
879          */
880         if ((f.frametype >= 0)&& (f.frametype != AST_FRAME_NULL)&&(p->owner)) {
881                 if (ast_mutex_trylock(&p->owner->lock)==0)  {
882                         ast_queue_frame(p->owner, &f);
883                         ast_mutex_unlock(&p->owner->lock);
884                         if (option_verbose > 3) 
885                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handled_owned: Queued Frame to [%s]\n", p->dev,p->owner->name);
886                 } else {
887                         ast_verbose("%s: handled_owned: Missed event %d/%d \n",
888                                 p->dev,f.frametype, f.subclass);
889                 }
890         }
891         res = ast_mutex_unlock(&p->lock);
892 /*
893         if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res);
894 */
895
896         return 0;
897 }
898
899 static inline int monitor_handle_notowned(struct vpb_pvt *p, VPB_EVENT *e)
900 {
901         char s[2] = {0};
902         struct ast_channel *owner = p->owner;
903
904         if (option_verbose > 3) {
905                 char str[VPB_MAX_STR];
906                 vpb_translate_event(e, str);
907                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, event[%d][%s]=[%d]\n",
908                         p->dev, p->mode, e->type,str, e->data);
909         }
910
911         switch(e->type) {
912                 case VPB_RING:
913                         if (p->mode == MODE_FXO) /* FXO port ring, start * */ {
914                                 vpb_new(p, AST_STATE_RING, p->context);
915                                 if(!strcasecmp(p->callerid, "on")) {
916                                         if (option_verbose>3) 
917                                                 ast_verbose(VERBOSE_PREFIX_4 "Using VPB Caller ID\n");
918                                         get_callerid(p);        /* Australian Caller ID only between 1st and 2nd ring  */
919                                 }
920                                 get_callerid_ast(p);    /* Caller ID using the ast functions */
921                         }
922                         break;
923
924                 case VPB_RING_OFF:
925                         break;
926
927                 case VPB_STATION_OFFHOOK:
928                         if (p->mode == MODE_IMMEDIATE) 
929                                 vpb_new(p,AST_STATE_RING, p->context);
930                         else {
931                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: playing dialtone\n",p->dev);
932                                 playtone(p->handle, &Dialtone);
933                                 p->state=VPB_STATE_PLAYDIAL;
934                                 p->wantdtmf = 1;
935                                 p->ext[0] = 0;  /* Just to be sure & paranoid.*/
936                         }
937                         break;
938
939                 case VPB_DIALEND:
940                         if (p->mode == MODE_DIALTONE){
941                                 if (p->state == VPB_STATE_PLAYDIAL) {
942                                         playtone(p->handle, &Dialtone);
943                                         p->wantdtmf = 1;
944                                         p->ext[0] = 0;  /* Just to be sure & paranoid. */
945                                 }
946                                 /* These are not needed as they have timers to restart them
947                                 else if (p->state == VPB_STATE_PLAYBUSY) {
948                                         playtone(p->handle, &Busytone);
949                                         p->wantdtmf = 1;
950                                         p->ext[0] = 0;  
951                                 }
952                                 else if (p->state == VPB_STATE_PLAYRING) {
953                                         playtone(p->handle, &Ringbacktone);
954                                         p->wantdtmf = 1;
955                                         p->ext[0] = 0;
956                                 }
957                                 */
958                         } else {
959                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Got a DIALEND when not really expected\n",p->dev);
960                         }
961                         break;
962
963                 case VPB_STATION_ONHOOK:        /* clear ext */
964                         stoptone(p->handle);
965                         p->wantdtmf = 1 ;
966                         p->ext[0] = 0;
967                         p->state=VPB_STATE_ONHOOK;
968                         break;
969
970                 case VPB_DTMF:
971                         if (p->state == VPB_STATE_ONHOOK){
972                                 /* DTMF's being passed while on-hook maybe Caller ID */
973                                 if ( p->mode == MODE_FXO ) {
974                                         if ( e->data == DTMF_CID_START ) { /* CallerID Start signal */
975                                                 p->dtmf_caller_pos = 0; /* Leaves the first digit out */
976                                                 memset(p->callerid,0,AST_MAX_EXTENSION);
977                                         }
978                                         else if ( e->data == DTMF_CID_STOP ) { /* CallerID End signal */
979                                                 p->callerid[p->dtmf_caller_pos] = '\0';
980                                                 if (option_verbose > 2)
981                                                         ast_verbose(VERBOSE_PREFIX_3 " %s: DTMF CallerID %s\n",p->dev,p->callerid);
982                                                 if (owner->cid.cid_num)
983                                                         free(owner->cid.cid_num);
984                                                 owner->cid.cid_num=NULL;
985                                                 if (owner->cid.cid_name)
986                                                         free(owner->cid.cid_name);
987                                                 owner->cid.cid_name=NULL;
988                                                 owner->cid.cid_num = strdup(p->callerid);
989                                         } else if ( p->dtmf_caller_pos < AST_MAX_EXTENSION ) {
990                                                 if ( p->dtmf_caller_pos >= 0 )
991                                                         p->callerid[p->dtmf_caller_pos] = e->data;
992                                                 p->dtmf_caller_pos++;
993                                         }
994                                 }
995                                 break;
996                         }
997                         if (p->wantdtmf == 1) {
998                                 stoptone(p->handle);
999                                 p->wantdtmf = 0;
1000                         }
1001                         p->state=VPB_STATE_GETDTMF;
1002                         s[0] = e->data;
1003                         strncat(p->ext, s, sizeof(p->ext) - strlen(p->ext) - 1);
1004                         if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)){
1005                                 if (option_verbose > 3) {
1006                                         ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Matched on [%s] in [%s]\n", p->dev,p->ext , p->context);
1007                                 }
1008                                 vpb_new(p,AST_STATE_RING, p->context);
1009                         } else if (!ast_canmatch_extension(NULL, p->context, p->ext, 1, p->callerid)){
1010                                 if (ast_exists_extension(NULL, "default", p->ext, 1, p->callerid)) {
1011                                         vpb_new(p,AST_STATE_RING, "default");         
1012                                 } else if (!ast_canmatch_extension(NULL, "default", p->ext, 1, p->callerid)) {
1013                                         if (option_verbose > 3) {
1014                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: can't match anything in %s or default\n",
1015                                                          p->dev, p->context);
1016                                         }
1017                                         playtone(p->handle, &Busytone);
1018                                         vpb_timer_stop(p->busy_timer);
1019                                         vpb_timer_start(p->busy_timer);
1020                                         p->state = VPB_STATE_PLAYBUSY;
1021                                 }
1022                         }
1023                         break;
1024
1025                 default:
1026                         /* Ignore.*/
1027                         break;
1028         }
1029
1030         if (option_verbose > 3) 
1031                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, [%d=>%d]\n",
1032                         p->dev, p->mode, e->type, e->data);
1033
1034         return 0;
1035 }
1036
1037 static void *do_monitor(void *unused)
1038 {
1039
1040         /* Monitor thread, doesn't die until explicitly killed. */
1041
1042         if (option_verbose > 1) 
1043                 ast_verbose(VERBOSE_PREFIX_2 "Starting vpb monitor thread[%ld]\n",
1044         pthread_self());
1045
1046         pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
1047
1048         for(;;) {
1049                 VPB_EVENT e;
1050                 VPB_EVENT je;
1051                 char str[VPB_MAX_STR];
1052                 struct vpb_pvt *p;
1053
1054                 /*
1055                 if (option_verbose > 3)
1056                      ast_verbose(VERBOSE_PREFIX_4 "Monitor waiting for event\n");
1057                 */
1058
1059                 int res = vpb_get_event_sync(&e, VPB_WAIT_TIMEOUT);
1060                 if( (res==VPB_NO_EVENTS) || (res==VPB_TIME_OUT) ){
1061                         /*
1062                         if (option_verbose > 3){
1063                                 if (res ==  VPB_NO_EVENTS){
1064                                         ast_verbose(VERBOSE_PREFIX_4 "No events....\n");
1065                                 } else {
1066                                         ast_verbose(VERBOSE_PREFIX_4 "No events, timed out....\n");
1067                                 }
1068                         }
1069                         */
1070                         continue;
1071                 }
1072
1073                 if (res != VPB_OK) {
1074                         ast_log(LOG_ERROR,"Monitor get event error %s\n", vpb_strerror(res) );
1075                         ast_verbose("Monitor get event error %s\n", vpb_strerror(res) );
1076                         continue;
1077                 }
1078
1079                 str[0] = 0;
1080
1081                 p = NULL;
1082
1083                 ast_mutex_lock(&monlock); {
1084
1085                         if (e.type == VPB_NULL_EVENT) {
1086                                 if (option_verbose > 3)
1087                                         ast_verbose(VERBOSE_PREFIX_4 "Monitor got null event\n");
1088                         }
1089                         else {
1090                                 vpb_translate_event(&e, str);
1091                                 if (strlen(str)>1){
1092                                         str[(strlen(str)-1)]='\0';
1093                                 }
1094
1095                                 ast_mutex_lock(&iflock); {
1096                                         p = iflist;
1097                                         while (p && p->handle != e.handle)
1098                                                 p = p->next;
1099                                 } ast_mutex_unlock(&iflock);
1100
1101                                 if (p && (option_verbose > 3))
1102                                         ast_verbose(VERBOSE_PREFIX_4 "%s: Event [%d=>%s] \n", 
1103                                                 p ? p->dev : "null", e.type, str );
1104                         }
1105
1106                 } ast_mutex_unlock(&monlock); 
1107
1108                 if (!p) {
1109                         if (e.type != VPB_NULL_EVENT){
1110                                 ast_log(LOG_WARNING, "Got event [%s][%d], no matching iface!\n", str,e.type);    
1111                                 if (option_verbose > 3){
1112                                         ast_verbose(VERBOSE_PREFIX_4 "vpb/ERR: No interface for Event [%d=>%s] \n",e.type,str );
1113                                 }
1114                         }
1115                         continue;
1116                 } 
1117
1118                 /* flush the event from the channel event Q */
1119                 vpb_get_event_ch_async(e.handle,&je);
1120                 if (option_verbose > 4){
1121                         vpb_translate_event(&je, str);
1122                         ast_verbose("%s: Flushing event [%d]=>%s\n",p->dev,je.type,str);
1123                 }
1124
1125                 /* Check for ownership and locks */
1126                 if ((p->owner)&&(!p->golock)){
1127                         /* Need to get owner lock */
1128                         /* Safely grab both p->lock and p->owner->lock so that there
1129                         cannot be a race with something from the other side */
1130                         /*
1131                         ast_mutex_lock(&p->lock);
1132                         while(ast_mutex_trylock(&p->owner->lock)) {
1133                                 ast_mutex_unlock(&p->lock);
1134                                 usleep(1);
1135                                 ast_mutex_lock(&p->lock);
1136                                 if (!p->owner)
1137                                         break;
1138                         }
1139                         if (p->owner)
1140                                 p->golock=1;
1141                         */
1142                 }
1143                 /* Two scenarios: Are you owned or not. */
1144                 if (p->owner) {
1145                         monitor_handle_owned(p, &e);
1146                 } else {
1147                         monitor_handle_notowned(p, &e);
1148                 }
1149                 /* if ((!p->owner)&&(p->golock)){
1150                         ast_mutex_unlock(&p->owner->lock);
1151                         ast_mutex_unlock(&p->lock);
1152                 }
1153                 */
1154
1155         }
1156
1157         return NULL;
1158 }
1159
1160 static int restart_monitor(void)
1161 {
1162         int error = 0;
1163
1164         /* If we're supposed to be stopped -- stay stopped */
1165         if (mthreadactive == -2)
1166                 return 0;
1167
1168         if (option_verbose > 3)
1169                 ast_verbose(VERBOSE_PREFIX_4 "Restarting monitor\n");
1170
1171         ast_mutex_lock(&monlock); {
1172                 if (monitor_thread == pthread_self()) {
1173                         ast_log(LOG_WARNING, "Cannot kill myself\n");
1174                         error = -1;
1175                         if (option_verbose > 3)
1176                                 ast_verbose(VERBOSE_PREFIX_4 "Monitor trying to kill monitor\n");
1177                 }
1178                 else {
1179                         if (mthreadactive != -1) {
1180                                 /* Why do other drivers kill the thread? No need says I, simply awake thread with event. */
1181                                 VPB_EVENT e;
1182                                 e.handle = 0;
1183                                 e.type = VPB_NULL_EVENT;
1184                                 e.data = 0;
1185
1186                                 if (option_verbose > 3)
1187                                         ast_verbose(VERBOSE_PREFIX_4 "Trying to reawake monitor\n");
1188
1189                                 vpb_put_event(&e);
1190                         } else {
1191                                 /* Start a new monitor */
1192                                 int pid = ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL); 
1193                                 if (option_verbose > 3)
1194                                         ast_verbose(VERBOSE_PREFIX_4 "Created new monitor thread %d\n",pid);
1195                                 if (pid < 0) {
1196                                         ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
1197                                         error = -1;
1198                                 } else
1199                                         mthreadactive = 0; /* Started the thread!*/
1200                         }
1201                 }
1202         } ast_mutex_unlock(&monlock);
1203
1204         if (option_verbose > 3)
1205                 ast_verbose(VERBOSE_PREFIX_4 "Monitor restarted\n");
1206
1207         return error;
1208 }
1209
1210 /* Per board config that must be called after vpb_open() */
1211 static void mkbrd(vpb_model_t model, int echo_cancel)
1212 {
1213         if(!bridges) {
1214                 if(model==vpb_model_v4pci) 
1215                         max_bridges = MAX_BRIDGES_V4PCI;
1216                 bridges = (vpb_bridge_t *)malloc(max_bridges * sizeof(vpb_bridge_t) );
1217                 if(!bridges) 
1218                         ast_log(LOG_ERROR, "Failed to initialize bridges\n");
1219                 else {
1220                         memset(bridges,0,max_bridges * sizeof(vpb_bridge_t));
1221                         for(int i = 0; i < max_bridges; i++ ) {
1222                                 ast_mutex_init(&bridges[i].lock);
1223                                 pthread_cond_init(&bridges[i].cond, NULL);
1224                         }
1225                 }
1226         }
1227         if(!echo_cancel) {
1228                 if (model==vpb_model_v4pci) {
1229                         vpb_echo_canc_disable();
1230                         ast_log(LOG_NOTICE, "Voicetronix echo cancellation OFF\n");
1231                 } 
1232                 else {
1233                 /* need to it port by port for OpenSwitch*/
1234                 }
1235         } else {
1236                 if (model==vpb_model_v4pci) {
1237                         vpb_echo_canc_enable();
1238                         ast_log(LOG_NOTICE, "Voicetronix echo cancellation ON\n");
1239                 }
1240                 else {
1241                 /* need to it port by port for OpenSwitch*/
1242                 }
1243         }
1244 }
1245
1246 struct vpb_pvt *mkif(int board, int channel, int mode, float txgain, float rxgain,
1247                          float txswgain, float rxswgain, int bal1, int bal2, int bal3,
1248                          char * callerid, int echo_cancel, int group )
1249 {
1250         struct vpb_pvt *tmp;
1251         char buf[64];
1252
1253         tmp = (struct vpb_pvt *)calloc(1, sizeof *tmp);
1254
1255         if (!tmp)
1256                 return NULL;
1257
1258         tmp->handle = vpb_open(board, channel);
1259
1260         if (tmp->handle < 0) {    
1261                 ast_log(LOG_WARNING, "Unable to create channel vpb/%d-%d: %s\n", 
1262                                         board, channel, strerror(errno));
1263                 free(tmp);
1264                 return NULL;
1265         }
1266                
1267         snprintf(tmp->dev, sizeof(tmp->dev), "vpb/%d-%d", board, channel);
1268
1269         tmp->mode = mode;
1270
1271         tmp->group = group;
1272
1273
1274         strncpy(tmp->language, language, sizeof(tmp->language) - 1);
1275         strncpy(tmp->context, context, sizeof(tmp->context) - 1);
1276
1277         if(callerid) { 
1278                 strncpy(tmp->callerid, callerid, sizeof(tmp->callerid) - 1);
1279                 free(callerid);
1280         } else {
1281                 strncpy(tmp->callerid, "unknown", sizeof(tmp->callerid) - 1);
1282         }
1283
1284         /* check if codec balances have been set in the config file */
1285         if (bal3>=0) {
1286                 if ((bal1>=0) && !(bal1 & 32)) bal1 |= 32;
1287                         vpb_set_codec_reg(tmp->handle, 0x42, bal3);
1288         }
1289         if(bal1>=0) vpb_set_codec_reg(tmp->handle, 0x32, bal1);
1290         if(bal2>=0) vpb_set_codec_reg(tmp->handle, 0x3a, bal2);
1291
1292         tmp->txgain = txgain;
1293         vpb_play_set_hw_gain(tmp->handle, (txgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txgain);
1294
1295         tmp->rxgain = rxgain;
1296         vpb_record_set_hw_gain(tmp->handle, (rxgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxgain);
1297
1298         tmp->txswgain = txswgain;
1299         vpb_play_set_gain(tmp->handle, (txswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txswgain);
1300
1301         tmp->rxswgain = rxswgain;
1302         vpb_record_set_gain(tmp->handle, (rxswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxswgain);
1303
1304         tmp->vpb_model = vpb_model_unknown;
1305         if( vpb_get_model(buf) == VPB_OK ) {
1306                 if(strcmp(buf,"V12PCI")==0) 
1307                         tmp->vpb_model = vpb_model_v12pci;
1308                 else if(strcmp(buf,"VPB4")==0) 
1309                         tmp->vpb_model = vpb_model_v4pci;
1310         }
1311
1312         ast_mutex_init(&tmp->owner_lock);
1313         ast_mutex_init(&tmp->lock);
1314         ast_mutex_init(&tmp->record_lock);
1315         ast_mutex_init(&tmp->play_lock);
1316         ast_mutex_init(&tmp->play_dtmf_lock);
1317
1318         /* set default read state */
1319         tmp->read_state = 0;
1320         
1321         tmp->golock=0;
1322
1323         tmp->busy_timer_id = vpb_timer_get_unique_timer_id();
1324         vpb_timer_open(&tmp->busy_timer, tmp->handle, tmp->busy_timer_id, TIMER_PERIOD_BUSY);
1325
1326         tmp->ringback_timer_id = vpb_timer_get_unique_timer_id();
1327         vpb_timer_open(&tmp->ringback_timer, tmp->handle, tmp->ringback_timer_id, TIMER_PERIOD_RINGBACK);
1328               
1329         if (mode == MODE_FXO){
1330                 vpb_set_event_mask(tmp->handle, VPB_EVENTS_ALL );
1331         }
1332         else {
1333                 vpb_set_event_mask(tmp->handle, VPB_EVENTS_STAT );
1334         }
1335
1336         if ((tmp->vpb_model == vpb_model_v12pci) && (echo_cancel)){
1337                 vpb_hostecho_on(tmp->handle);
1338         }
1339
1340         /* define grunt tone */
1341         vpb_settonedet(tmp->handle,&toned_ungrunt);
1342
1343         ast_log(LOG_NOTICE,"Voicetronix %s channel %s initialized (rxgain=%f txgain=%f) (%f/%f/0x%X/0x%X/0x%X)\n",
1344                 (tmp->vpb_model==vpb_model_v4pci)?"V4PCI":
1345                 (tmp->vpb_model==vpb_model_v12pci)?"V12PCI":"[Unknown model]",
1346                 tmp->dev, tmp->rxswgain, tmp->txswgain, tmp->rxgain, tmp->txgain, bal1, bal2, bal3 );
1347
1348         return tmp;
1349 }
1350
1351 static int vpb_indicate(struct ast_channel *ast, int condition)
1352 {
1353         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1354         int res = 0;
1355         int tmp = 0;
1356
1357         if (option_verbose > 3)
1358                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate [%d] state[%d]\n", p->dev, condition,ast->_state);
1359 /*
1360         if (ast->_state != AST_STATE_UP) {
1361                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate Not in AST_STATE_UP\n", p->dev, condition,ast->_state);
1362                 return res;
1363         }
1364 */
1365
1366 /*
1367         if (option_verbose > 3) ast_verbose("%s: LOCKING in indicate \n", p->dev);
1368         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1369 */
1370         ast_mutex_lock(&p->lock);
1371         switch(condition) {
1372                 case AST_CONTROL_BUSY:
1373                 case AST_CONTROL_CONGESTION:
1374                         if (ast->_state == AST_STATE_UP) {
1375                                 playtone(p->handle, &Busytone);
1376                                 p->state = VPB_STATE_PLAYBUSY;
1377                                 vpb_timer_stop(p->busy_timer); 
1378                                 vpb_timer_start(p->busy_timer); 
1379                         }
1380                         break;
1381                 case AST_CONTROL_RINGING:
1382                         if (ast->_state == AST_STATE_UP) {
1383                                 playtone(p->handle, &Ringbacktone);
1384                                 p->state = VPB_STATE_PLAYRING;
1385                                 if (option_verbose > 3)
1386                                         ast_verbose(VERBOSE_PREFIX_4 "%s: vpb indicate: setting ringback timer [%d]\n", p->dev,p->ringback_timer_id);
1387                                 
1388                                 vpb_timer_stop(p->ringback_timer);
1389                                 vpb_timer_start(p->ringback_timer);
1390                         }
1391                         break;      
1392                 case AST_CONTROL_ANSWER:
1393                 case -1: /* -1 means stop playing? */
1394                         vpb_timer_stop(p->ringback_timer);
1395                         vpb_timer_stop(p->busy_timer);
1396                         stoptone(p->handle);
1397                         break;
1398                 case AST_CONTROL_HANGUP:
1399                         if (ast->_state == AST_STATE_UP) {
1400                                 playtone(p->handle, &Busytone);
1401                                 p->state = VPB_STATE_PLAYBUSY;
1402                                 vpb_timer_stop(p->busy_timer);
1403                                 vpb_timer_start(p->busy_timer);
1404                         }
1405                         break;
1406
1407                 default:
1408                         res = 0;
1409                         break;
1410         }
1411         tmp = ast_mutex_unlock(&p->lock);
1412 /*
1413         if (option_verbose > 3) ast_verbose("%s: unLOCKING in indicate [%d]\n", p->dev,tmp);
1414 */
1415         return res;
1416 }
1417
1418 static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
1419 {
1420         struct vpb_pvt *p = (struct vpb_pvt *)newchan->pvt->pvt;
1421         int res = 0;
1422
1423 /*
1424         if (option_verbose > 3) ast_verbose("%s: LOCKING in fixup \n", p->dev);
1425         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1426 */
1427         ast_mutex_lock(&p->lock);
1428         ast_log(LOG_DEBUG, "New owner for channel %s is %s\n", p->dev, newchan->name);
1429
1430         if (p->owner == oldchan) {
1431                 p->owner = newchan;
1432         }
1433
1434         if (newchan->_state == AST_STATE_RINGING){
1435                 if (use_ast_ind == 1)
1436                         ast_indicate(newchan, AST_CONTROL_RINGING);
1437                 else
1438                         vpb_indicate(newchan, AST_CONTROL_RINGING);
1439         }
1440
1441         res= ast_mutex_unlock(&p->lock);
1442 /*
1443         if (option_verbose > 3) ast_verbose("%s: unLOCKING in fixup [%d]\n", p->dev,res);
1444 */
1445         return 0;
1446 }
1447
1448 static int vpb_digit(struct ast_channel *ast, char digit)
1449 {
1450         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1451         char s[2];
1452         int res = 0;
1453
1454 /*
1455         if (option_verbose > 3) ast_verbose("%s: LOCKING in digit \n", p->dev);
1456         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1457 */
1458         ast_mutex_lock(&p->lock);
1459
1460
1461         s[0] = digit;
1462         s[1] = '\0';
1463
1464         if (option_verbose > 3)
1465                 ast_verbose(VERBOSE_PREFIX_4 "%s: play digit[%s]\n", p->dev, s);
1466
1467         ast_mutex_lock(&p->play_dtmf_lock);
1468         strncat(p->play_dtmf,s,sizeof(*p->play_dtmf));
1469         ast_mutex_unlock(&p->play_dtmf_lock);
1470
1471         res = ast_mutex_unlock(&p->lock);
1472 /*
1473         if (option_verbose > 3) ast_verbose("%s: unLOCKING in digit [%d]\n", p->dev,res);
1474 */
1475         return 0;
1476 }
1477
1478 /* Places a call out of a VPB channel */
1479 static int vpb_call(struct ast_channel *ast, char *dest, int timeout)
1480 {
1481         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1482         int res = 0,i;
1483         char *s = strrchr(dest, '/');
1484         char dialstring[254] = "";
1485         int tmp = 0;
1486
1487 /*
1488         if (option_verbose > 3) ast_verbose("%s: LOCKING in call \n", p->dev);
1489         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1490 */
1491         ast_mutex_lock(&p->lock);
1492
1493         if (s)
1494                 s = s + 1;
1495         else
1496                 s = dest;
1497         strncpy(dialstring, s, sizeof(dialstring) - 1);
1498         for (i=0; dialstring[i] != '\0' ; i++) {
1499                 if ((dialstring[i] == 'w') || (dialstring[i] == 'W'))
1500                         dialstring[i] = ',';
1501                 else if ((dialstring[i] == 'f') || (dialstring[i] == 'F'))
1502                         dialstring[i] = '&';
1503         }       
1504         if (option_verbose > 3)
1505                 ast_verbose(VERBOSE_PREFIX_4 "%s: starting call\n", p->dev);
1506
1507         if (ast->_state != AST_STATE_DOWN && ast->_state != AST_STATE_RESERVED) {
1508                 ast_log(LOG_WARNING, "vpb_call on %s neither down nor reserved!\n", ast->name);
1509                 tmp = ast_mutex_unlock(&p->lock);
1510 /*
1511                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp);
1512 */
1513                 return -1;
1514         }
1515         if (p->mode != MODE_FXO)  /* Station port, ring it. */
1516                 res = vpb_ring_station_async(p->handle, VPB_RING_STATION_ON,0);       
1517         else {
1518                 VPB_CALL call;
1519
1520                 /* Dial must timeout or it can leave channels unuseable */
1521                 if( timeout == 0 )
1522                         timeout = TIMER_PERIOD_NOANSWER;
1523                 else 
1524                         timeout = timeout * 1000; /* convert from secs to ms. */
1525
1526                 /* These timeouts are only used with call progress dialing */
1527                 call.dialtones = 1; /* Number of dialtones to get outside line */
1528                 call.dialtone_timeout = VPB_DIALTONE_WAIT; /* Wait this long for dialtone (ms) */
1529                 call.ringback_timeout = VPB_RINGWAIT; /* Wait this long for ringing after dialing (ms) */
1530                 call.inter_ringback_timeout = VPB_CONNECTED_WAIT; /* If ringing stops for this long consider it connected (ms) */
1531                 call.answer_timeout = timeout; /* Time to wait for answer after ringing starts (ms) */
1532                 memcpy( &call.tone_map,  DialToneMap, sizeof(DialToneMap) );
1533                 vpb_set_call(p->handle, &call);
1534
1535                 if (option_verbose > 1)
1536                         ast_verbose(VERBOSE_PREFIX_2 "%s: Calling %s on %s \n",p->dev, dialstring, ast->name); 
1537
1538                 if (option_verbose > 2) {
1539                         int j;
1540                         ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s %d/%dms/%dms/%dms/%dms\n", p->dev
1541                                 , ast->name, call.dialtones, call.dialtone_timeout
1542                                 , call.ringback_timeout, call.inter_ringback_timeout
1543                                 , call.answer_timeout );
1544                         for( j=0; !call.tone_map[j].terminate; j++ )
1545                                 ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s tone %d->%d\n", p->dev,
1546                                         ast->name, call.tone_map[j].tone_id, call.tone_map[j].call_id); 
1547                 }
1548
1549                 if (option_verbose > 4)
1550                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1551                 vpb_disable_event(p->handle, VPB_MDROP);
1552                 vpb_sethook_sync(p->handle,VPB_OFFHOOK);
1553                 p->state=VPB_STATE_OFFHOOK;
1554
1555                 #ifndef DIAL_WITH_CALL_PROGRESS
1556                 vpb_sleep(300);
1557                 if (option_verbose > 4)
1558                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1559                 vpb_enable_event(p->handle, VPB_MDROP);
1560                 res = vpb_dial_async(p->handle, dialstring);
1561                 #else
1562                 if (option_verbose > 4)
1563                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1564                 vpb_enable_event(p->handle, VPB_MDROP);
1565                 res = vpb_call_async(p->handle, dialstring);
1566                 #endif
1567
1568                 if (res != VPB_OK) {
1569                         ast_log(LOG_DEBUG, "Call on %s to %s failed: %s\n", ast->name, s, vpb_strerror(res));         
1570                         res = -1;
1571                 } else 
1572                         res = 0;
1573         }
1574
1575         if (option_verbose > 2)
1576                 ast_verbose(VERBOSE_PREFIX_3 "%s: VPB Calling %s [t=%d] on %s returned %d\n",p->dev , s, timeout, ast->name, res); 
1577         if (res == 0) {
1578                 ast_setstate(ast, AST_STATE_RINGING);
1579                 ast_queue_control(ast,AST_CONTROL_RINGING);             
1580         }
1581
1582         if (!p->readthread){
1583                 ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
1584         }
1585
1586         tmp = ast_mutex_unlock(&p->lock);
1587 /*
1588         if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp);
1589 */
1590         return res;
1591 }
1592
1593 static int vpb_hangup(struct ast_channel *ast)
1594 {
1595         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1596         VPB_EVENT je;
1597         char str[VPB_MAX_STR];
1598         int res =0 ;
1599
1600 /*
1601         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev);
1602         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1603         if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self());
1604         ast_mutex_lock(&p->lock);
1605 */
1606         if (option_verbose > 1) 
1607                 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup requested\n", ast->name);
1608
1609         if (!ast->pvt || !ast->pvt->pvt) {
1610                 ast_log(LOG_WARNING, "%s: channel not connected?\n", ast->name);
1611                 res = ast_mutex_unlock(&p->lock);
1612 /*
1613                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res);
1614 */
1615                 return 0;
1616         }
1617
1618
1619
1620         /* Stop record */
1621         p->stopreads = 1;
1622         if( p->readthread ){
1623                 pthread_join(p->readthread, NULL); 
1624                 if(option_verbose>3) 
1625                         ast_verbose( VERBOSE_PREFIX_4 "%s: stopped record thread on %s\n",ast->name,p->dev);
1626         }
1627
1628         /* Stop play */
1629         if (p->lastoutput != -1) {
1630                 if(option_verbose>1) 
1631                         ast_verbose( VERBOSE_PREFIX_2 "%s: Ending play mode on %s\n",ast->name,p->dev);
1632                 vpb_play_terminate(p->handle);
1633                 ast_mutex_lock(&p->play_lock); {
1634                         vpb_play_buf_finish(p->handle);
1635                 } ast_mutex_unlock(&p->play_lock);
1636         }
1637
1638         if(option_verbose>3) 
1639                 ast_verbose( VERBOSE_PREFIX_4 "%s: Setting state down\n",ast->name);
1640         ast_setstate(ast,AST_STATE_DOWN);
1641
1642
1643 /*
1644         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev);
1645         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1646         if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self());
1647 */
1648         ast_mutex_lock(&p->lock);
1649
1650         if (p->mode != MODE_FXO) { 
1651                 /* station port. */
1652                 vpb_ring_station_async(p->handle, VPB_RING_STATION_OFF,0);      
1653                 if(p->state!=VPB_STATE_ONHOOK){
1654                         /* This is causing a "dial end" "play tone" loop
1655                         playtone(p->handle, &Busytone); 
1656                         p->state = VPB_STATE_PLAYBUSY;
1657                         if(option_verbose>4) 
1658                                 ast_verbose( VERBOSE_PREFIX_4 "%s: Station offhook[%d], playing busy tone\n",
1659                                                                 ast->name,p->state);
1660                         */
1661                 }
1662                 else {
1663                         stoptone(p->handle);
1664                 }
1665         } else {
1666                 stoptone(p->handle); /* Terminates any dialing */
1667                 vpb_sethook_sync(p->handle, VPB_ONHOOK);
1668                 p->state=VPB_STATE_ONHOOK;
1669         }
1670         while (VPB_OK==vpb_get_event_ch_async(p->handle,&je)){
1671                 if(option_verbose>3) {
1672                         vpb_translate_event(&je, str);
1673                         ast_verbose( VERBOSE_PREFIX_4 "%s: Flushing event [%d]=>%s\n",ast->name,je.type,str);
1674                 }
1675         }
1676
1677         p->readthread = 0;
1678         p->lastoutput = -1;
1679         p->lastinput = -1;
1680         p->last_ignore_dtmf = 1;
1681         p->ext[0]  = 0;
1682         p->dialtone = 0;
1683
1684         p->owner = NULL;
1685         ast->pvt->pvt=NULL;
1686
1687         ast_mutex_lock(&usecnt_lock); {
1688                 usecnt--;
1689         } ast_mutex_unlock(&usecnt_lock);
1690         ast_update_use_count();
1691
1692         if (option_verbose > 1)
1693                 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup complete\n", ast->name);
1694
1695         restart_monitor();
1696 /*
1697         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1698 */
1699         res = ast_mutex_unlock(&p->lock);
1700 /*
1701         if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res);
1702         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1703 */
1704         return 0;
1705 }
1706
1707 static int vpb_answer(struct ast_channel *ast)
1708 {
1709         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1710         VPB_EVENT je;
1711         int ret;
1712         int res = 0;
1713 /*
1714         if (option_verbose > 3) ast_verbose("%s: LOCKING in answer \n", p->dev);
1715         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1716 */
1717         ast_mutex_lock(&p->lock);
1718
1719         if (option_verbose > 3)
1720                         ast_verbose(VERBOSE_PREFIX_4 "%s: Answering channel\n",p->dev);
1721
1722         if (p->mode == MODE_FXO){
1723                 if (option_verbose > 3)
1724                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1725                 vpb_disable_event(p->handle, VPB_MDROP);
1726         }
1727
1728         if (ast->_state != AST_STATE_UP) {
1729                 if (p->mode == MODE_FXO){
1730                         vpb_sethook_sync(p->handle, VPB_OFFHOOK);
1731                         p->state=VPB_STATE_OFFHOOK;
1732 /*                      vpb_sleep(500);
1733                         ret = vpb_get_event_ch_async(p->handle,&je);
1734                         if ((ret == VPB_OK)&&((je.type != VPB_DROP)&&(je.type != VPB_RING))){
1735                                 if (option_verbose > 3){
1736                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: Answer collected a wrong event!!\n",p->dev);
1737                                 }
1738                                 vpb_put_event(&je);
1739                         }
1740 */
1741                 }
1742                 ast_setstate(ast, AST_STATE_UP);
1743
1744                 if(option_verbose>1) 
1745 /*
1746                         ast_verbose( VERBOSE_PREFIX_2 "%s: Answered call from %s on %s [%s]\n", p->dev, 
1747                                         p->owner->callerid, ast->name,(p->mode == MODE_FXO)?"FXO":"FXS"); 
1748 */
1749                         ast_verbose( VERBOSE_PREFIX_2 "%s: Answered call on %s [%s]\n", p->dev,
1750                                          ast->name,(p->mode == MODE_FXO)?"FXO":"FXS");
1751
1752                 ast->rings = 0;
1753                 if( !p->readthread ){
1754         /*              res = ast_mutex_unlock(&p->lock); */
1755         /*              ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); */
1756                         ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
1757                 } else {
1758                         if(option_verbose>3) 
1759                                 ast_verbose(VERBOSE_PREFIX_4 "%s: Record thread already running!!\n",p->dev);
1760                 }
1761         } else {
1762                 if(option_verbose>3) {
1763                         ast_verbose(VERBOSE_PREFIX_4 "%s: Answered state is up\n",p->dev);
1764                 }
1765         /*      res = ast_mutex_unlock(&p->lock); */
1766         /*      ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); */
1767         }
1768         vpb_sleep(500);
1769         if (p->mode == MODE_FXO){
1770                 if (option_verbose > 3)
1771                                 ast_verbose("%s: Re-enabling Loop Drop detection\n",p->dev);
1772                 vpb_enable_event(p->handle,VPB_MDROP);
1773         }
1774         res = ast_mutex_unlock(&p->lock);
1775 /*
1776         if(option_verbose>3) ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res);
1777 */
1778         return 0;
1779 }
1780
1781 static struct ast_frame  *vpb_read(struct ast_channel *ast)
1782 {
1783         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; 
1784         static struct ast_frame f = {AST_FRAME_NULL}; 
1785
1786         f.src = type;
1787         ast_log(LOG_NOTICE, "%s: vpb_read: should never be called!\n", p->dev);
1788         ast_verbose("%s: vpb_read: should never be called!\n", p->dev);
1789
1790         return &f;
1791 }
1792
1793 static inline int ast2vpbformat(int ast_format)
1794 {
1795         switch(ast_format) {
1796                 case AST_FORMAT_ALAW:
1797                         return VPB_ALAW;
1798                 case AST_FORMAT_SLINEAR:
1799                         return VPB_LINEAR;
1800                 case AST_FORMAT_ULAW:
1801                         return VPB_MULAW;
1802                 case AST_FORMAT_ADPCM:
1803                         return VPB_OKIADPCM;
1804                 default:
1805                         return -1;
1806         }
1807 }
1808
1809 static inline char * ast2vpbformatname(int ast_format)
1810 {
1811         switch(ast_format) {
1812                 case AST_FORMAT_ALAW:
1813                         return "AST_FORMAT_ALAW:VPB_ALAW";
1814                 case AST_FORMAT_SLINEAR:
1815                         return "AST_FORMAT_SLINEAR:VPB_LINEAR";
1816                 case AST_FORMAT_ULAW:
1817                         return "AST_FORMAT_ULAW:VPB_MULAW";
1818                 case AST_FORMAT_ADPCM:
1819                         return "AST_FORMAT_ADPCM:VPB_OKIADPCM";
1820                 default:
1821                         return "UNKN:UNKN";
1822         }
1823 }
1824
1825 static inline int astformatbits(int ast_format)
1826 {
1827         switch(ast_format) {
1828                 case AST_FORMAT_ALAW:
1829                 case AST_FORMAT_ULAW:
1830                         return 8;
1831                 case AST_FORMAT_SLINEAR:
1832                         return 16;
1833                 case AST_FORMAT_ADPCM:
1834                         return 4;
1835                 default:
1836                         return 8;
1837         }   
1838 }
1839
1840 int a_gain_vector(float g, short *v, int n) 
1841 {
1842         int i;
1843         float tmp;
1844         for ( i = 0; i<n; i++) {
1845                 tmp = g*v[i];
1846                 if (tmp > 32767.0)
1847                         tmp = 32767.0;
1848                 if (tmp < -32768.0)
1849                         tmp = -32768.0;
1850                 v[i] = (short)tmp;      
1851         }  
1852         return(i);
1853 }
1854
1855 /* Writes a frame of voice data to a VPB channel */
1856 static int vpb_write(struct ast_channel *ast, struct ast_frame *frame)
1857 {
1858         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; 
1859         int res = 0, fmt = 0;
1860         struct timeval play_buf_time_start,play_buf_time_finish;
1861 /*      ast_mutex_lock(&p->lock); */
1862         if(option_verbose>5) 
1863                 ast_verbose("%s: vpb_write: Writing to channel\n", p->dev);
1864
1865         if (frame->frametype != AST_FRAME_VOICE) {
1866                 if(option_verbose>3) 
1867                         ast_verbose("%s: vpb_write: Don't know how to handle from type %d\n", ast->name, frame->frametype);
1868 /*              ast_mutex_unlock(&p->lock); */
1869                 return 0;
1870         } else if (ast->_state != AST_STATE_UP) {
1871                 if(option_verbose>3) 
1872                         ast_verbose("%s: vpb_write: Attempt to Write frame type[%d]subclass[%d] on not up chan\n",ast->name, frame->frametype, frame->subclass);
1873                 p->lastoutput = -1;
1874 /*              ast_mutex_unlock(&p->lock); */
1875                 return 0;
1876         }
1877 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame type..\n", p->dev); */
1878
1879         fmt = ast2vpbformat(frame->subclass);
1880         if (fmt < 0) {
1881                 ast_log(LOG_WARNING, "%s: vpb_write: Cannot handle frames of %d format!\n",ast->name, frame->subclass);
1882                 return -1;
1883         }
1884 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame format..\n", p->dev); */
1885
1886         ast_mutex_lock(&p->play_lock);
1887
1888 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Got play lock..\n", p->dev); */
1889
1890         /* Check if we have set up the play_buf */
1891         if (p->lastoutput == -1) {
1892                 vpb_play_buf_start(p->handle, fmt);
1893                 if(option_verbose>1) {
1894                         ast_verbose("%s: vpb_write: Starting play mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(frame->subclass));
1895                 }
1896         } else if (p->lastoutput != fmt) {
1897                 vpb_play_buf_finish(p->handle);
1898                 vpb_play_buf_start(p->handle, fmt);
1899                 if(option_verbose>1) 
1900                         ast_verbose("%s: vpb_write: Changed play format (%d=>%d)\n",p->dev,p->lastoutput,fmt);
1901         }
1902         p->lastoutput = fmt;
1903
1904
1905
1906         /* Apply extra gain ! */
1907         if( p->txswgain > MAX_VPB_GAIN )
1908                 a_gain_vector(p->txswgain - MAX_VPB_GAIN , (short*)frame->data, frame->datalen/sizeof(short));
1909
1910 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Applied gain..\n", p->dev); */
1911
1912 /*      gettimeofday(&tv, NULL); */
1913 /*      return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000); */
1914
1915         if ((p->read_state == 1)&&(p->play_buf_time<5)){
1916         gettimeofday(&play_buf_time_start,NULL);
1917         res = vpb_play_buf_sync(p->handle, (char*)frame->data, frame->datalen);
1918         if( (res == VPB_OK) && (option_verbose > 5) ) {
1919                 short * data = (short*)frame->data;
1920                 ast_verbose("%s: vpb_write: Wrote chan (codec=%d) %d %d\n", p->dev, fmt, data[0],data[1]);
1921         }
1922         gettimeofday(&play_buf_time_finish,NULL);
1923         if (play_buf_time_finish.tv_sec == play_buf_time_start.tv_sec){
1924                 p->play_buf_time=(int)((play_buf_time_finish.tv_usec-play_buf_time_start.tv_usec)/1000);
1925 /*              ast_log(LOG_DEBUG, "%s: vpb_write: Timing start(%d) finish(%d)\n", p->dev,play_buf_time_start.tv_usec,play_buf_time_finish.tv_usec); */
1926         }
1927         else {
1928                 p->play_buf_time=(int)((play_buf_time_finish.tv_sec - play_buf_time_start.tv_sec)*100)+(int)((play_buf_time_finish.tv_usec-play_buf_time_start.tv_usec)/1000);
1929         }
1930 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Wrote data [%d](%d=>%s) to play_buf in [%d]ms..\n", p->dev,frame->datalen,fmt,ast2vpbformatname(frame->subclass),p->play_buf_time); */
1931         }
1932         else {
1933                 p->chuck_count++;
1934                 ast_log(LOG_DEBUG, "%s: vpb_write: Tossed data away, tooooo much data!![%d]\n", p->dev,p->chuck_count);
1935                 p->play_buf_time=0;
1936         }
1937
1938         ast_mutex_unlock(&p->play_lock);
1939 /*      ast_mutex_unlock(&p->lock); */
1940         if(option_verbose>5) 
1941                 ast_verbose("%s: vpb_write: Done Writing to channel\n", p->dev);
1942         return 0;
1943 }
1944
1945 /* Read monitor thread function. */
1946 static void *do_chanreads(void *pvt)
1947 {
1948         struct vpb_pvt *p = (struct vpb_pvt *)pvt;
1949         struct ast_frame *fr = &p->fr;
1950         char *readbuf = ((char *)p->buf) + AST_FRIENDLY_OFFSET;
1951         int bridgerec = 0;
1952         int afmt, readlen, res, fmt, trycnt=0;
1953         int ignore_dtmf;
1954         char * getdtmf_var = NULL;
1955
1956         fr->frametype = AST_FRAME_VOICE;
1957         fr->src = type;
1958         fr->mallocd = 0;
1959         fr->delivery.tv_sec = 0;
1960         fr->delivery.tv_usec = 0;
1961         fr->samples = VPB_SAMPLES;
1962         fr->offset = AST_FRIENDLY_OFFSET;
1963         memset(p->buf, 0, sizeof p->buf);
1964
1965         if (option_verbose > 2) {
1966                 ast_verbose("%s: chanreads: starting thread\n", p->dev);
1967         }  
1968         ast_mutex_lock(&p->record_lock);
1969
1970         p->stopreads = 0; 
1971         p->read_state = 1;
1972         while (!p->stopreads && p->owner) {
1973
1974                 if (option_verbose > 4)
1975                         ast_verbose("%s: chanreads: Starting cycle ...\n", p->dev);
1976                 if (option_verbose > 4)
1977                         ast_verbose("%s: chanreads: Checking bridge \n", p->dev);
1978                 if (p->bridge) {
1979                         if (p->bridge->c0 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_0))
1980                                 bridgerec = 1;
1981                         else if (p->bridge->c1 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_1))
1982                                 bridgerec = 1;
1983                         else 
1984                                 bridgerec = 0;
1985                 } else {
1986                         if (option_verbose > 4)
1987                                 ast_verbose("%s: chanreads: No native bridge.\n", p->dev);
1988                         if (p->owner->_bridge){
1989                                 if (option_verbose > 4){
1990                                         ast_verbose("%s: chanreads: Got Asterisk bridge with [%s].\n", p->dev,p->owner->_bridge->name);
1991                                 }
1992                                 bridgerec = 1;
1993                         }
1994                         else {
1995                                 bridgerec = 0;
1996                         }
1997                 }
1998
1999 /*              if ( (p->owner->_state != AST_STATE_UP) || !bridgerec) { */
2000                 if ( (p->owner->_state != AST_STATE_UP) ) {
2001                         if (option_verbose > 4) {
2002                                 if (p->owner->_state != AST_STATE_UP)
2003                                         ast_verbose("%s: chanreads: Im not up[%d]\n", p->dev,p->owner->_state);
2004                                 else
2005                                         ast_verbose("%s: chanreads: No bridgerec[%d]\n", p->dev,bridgerec);
2006                         }  
2007                         vpb_sleep(10);
2008                         continue;
2009                 }
2010
2011                 /* Voicetronix DTMF detection can be triggered off ordinary speech
2012                  * This leads to annoying beeps during the conversation
2013                  * Avoid this problem by just setting VPB_GETDTMF when you want to listen for DTMF
2014                  */
2015                 /* ignore_dtmf = 1; */
2016                 ignore_dtmf = 0; /* set this to 1 to turn this feature on */
2017                 getdtmf_var = pbx_builtin_getvar_helper(p->owner,"VPB_GETDTMF");
2018                 if( getdtmf_var && ( strcasecmp( getdtmf_var, "yes" ) == 0 ) )
2019                         ignore_dtmf = 0;
2020
2021                 if( ignore_dtmf != p->last_ignore_dtmf ) {
2022                         if(option_verbose>1) 
2023                                 ast_verbose( VERBOSE_PREFIX_2 "%s:Now %s DTMF \n",
2024                                         p->dev, ignore_dtmf ? "ignoring" : "listening for");
2025                         vpb_set_event_mask(p->handle, ignore_dtmf ? VPB_EVENTS_NODTMF : VPB_EVENTS_ALL );
2026                 }
2027                 p->last_ignore_dtmf = ignore_dtmf;
2028
2029                 /* Play DTMF digits here to avoid problem you get if playing a digit during 
2030                  * a record operation
2031                  */
2032                 if (option_verbose > 5) {
2033                         ast_verbose("%s: chanreads: Checking dtmf's \n", p->dev);
2034                 }  
2035                 ast_mutex_lock(&p->play_dtmf_lock);
2036                 if( p->play_dtmf[0] ) {
2037                         /* Try to ignore DTMF event we get after playing digit */
2038                         /* This DTMF is played by asterisk and leads to an annoying trailing beep on CISCO phones */
2039                         if( !ignore_dtmf) 
2040                                 vpb_set_event_mask(p->handle, VPB_EVENTS_NODTMF );
2041 /*                      if (strcmp(p->owner->type,"vpb")==0){ */
2042                         if (p->bridge == NULL){
2043                                 vpb_dial_sync(p->handle,p->play_dtmf);
2044                                 if(option_verbose>1) 
2045                                         ast_verbose( VERBOSE_PREFIX_2 "%s: chanreads: Played DTMF %s\n",p->dev,p->play_dtmf);
2046                         }
2047                         else {
2048                                 if (option_verbose > 1) 
2049                                         ast_verbose(VERBOSE_PREFIX_2 "%s: chanreads: Not playing DTMF frame on native bridge\n", p->dev);
2050                         }
2051                         p->play_dtmf[0] = '\0';
2052                         ast_mutex_unlock(&p->play_dtmf_lock);
2053                         vpb_sleep(700); /* Long enough to miss echo and DTMF event */
2054                         if( !ignore_dtmf) 
2055                                 vpb_set_event_mask(p->handle, VPB_EVENTS_ALL );
2056                         continue;
2057                 }
2058                 ast_mutex_unlock(&p->play_dtmf_lock);
2059
2060 /*              afmt = (p->owner) ? p->owner->pvt->rawreadformat : AST_FORMAT_SLINEAR; */
2061                 if (p->owner){
2062                         afmt = p->owner->pvt->rawreadformat;
2063 /*                      ast_log(LOG_DEBUG,"%s: Record using owner format [%s]\n", p->dev, ast2vpbformatname(afmt)); */
2064                 }
2065                 else {
2066                         afmt = AST_FORMAT_SLINEAR;
2067 /*                      ast_log(LOG_DEBUG,"%s: Record using default format [%s]\n", p->dev, ast2vpbformatname(afmt)); */
2068                 }
2069                 fmt = ast2vpbformat(afmt);
2070                 if (fmt < 0) {
2071                         ast_log(LOG_WARNING,"%s: Record failure (unsupported format %d)\n", p->dev, afmt);
2072                         return NULL;
2073                 }
2074                 readlen = VPB_SAMPLES * astformatbits(afmt) / 8;
2075
2076                 if (p->lastinput == -1) {
2077                         vpb_record_buf_start(p->handle, fmt);
2078                         vpb_reset_record_fifo_alarm(p->handle);
2079                         if(option_verbose>1) 
2080                                 ast_verbose( VERBOSE_PREFIX_2 "%s: Starting record mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(afmt));
2081                 } else if (p->lastinput != fmt) {
2082                         vpb_record_buf_finish(p->handle);
2083                         vpb_record_buf_start(p->handle, fmt);
2084                         if(option_verbose>1) 
2085                                 ast_verbose( VERBOSE_PREFIX_2 "%s: Changed record format (%d=>%d)\n",p->dev,p->lastinput,fmt);
2086                 }
2087                 p->lastinput = fmt;
2088
2089                 /* Read only if up and not bridged, or a bridge for which we can read. */
2090                 if (option_verbose > 5) {
2091                         ast_verbose("%s: chanreads: getting buffer!\n", p->dev);
2092                 }  
2093                 if( (res = vpb_record_buf_sync(p->handle, readbuf, readlen) ) == VPB_OK ) {
2094                         if (option_verbose > 5) {
2095                                 ast_verbose("%s: chanreads: got buffer!\n", p->dev);
2096                         }  
2097                         /* Apply extra gain ! */
2098                         if( p->rxswgain > MAX_VPB_GAIN )
2099                                 a_gain_vector(p->rxswgain - MAX_VPB_GAIN , (short*)readbuf, readlen/sizeof(short));
2100                         if (option_verbose > 5) {
2101                                 ast_verbose("%s: chanreads: applied gain\n", p->dev);
2102                         }  
2103
2104                         fr->subclass = afmt;
2105                         fr->data = readbuf;
2106                         fr->datalen = readlen;
2107
2108                         /* Using trylock here to prevent deadlock when channel is hungup
2109                          * (ast_hangup() immediately gets lock)
2110                          */
2111                         if (p->owner && !p->stopreads ) {
2112                                 if (option_verbose > 5) {
2113                                         ast_verbose("%s: chanreads: queueing buffer on read frame q (state[%d])\n", p->dev,p->owner->_state);
2114                                 }  
2115                                 do {
2116                                         res = ast_mutex_trylock(&p->owner->lock);
2117                                         trycnt++;
2118                                 } while((res !=0)&&(trycnt<300));
2119                                 if (res==0)  {
2120                                         ast_queue_frame(p->owner, fr);
2121                                         ast_mutex_unlock(&p->owner->lock);
2122                                 } else {
2123                                         if (option_verbose > 4) 
2124                                                 ast_verbose("%s: chanreads: Couldnt get lock after %d tries!\n", p->dev,trycnt);
2125                                 }
2126                                 trycnt=0;
2127                                 
2128 /*
2129                                 res = ast_mutex_trylock(&p->owner->lock);
2130                                 if (res==0)  {
2131                                         ast_queue_frame(p->owner, fr);
2132                                         ast_mutex_unlock(&p->owner->lock);
2133                                 } else {
2134                                         if (res == EINVAL )
2135                                                 if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res);
2136                                         else if (res == EBUSY )
2137                                                 if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res);
2138                                         while(res !=0){
2139                                         res = ast_mutex_trylock(&p->owner->lock);
2140                                         }
2141                                         if (res==0)  {
2142                                                 ast_queue_frame(p->owner, fr);
2143                                                 ast_mutex_unlock(&p->owner->lock);
2144                                         }
2145                                         else {
2146                                                 if (res == EINVAL )
2147                                                         if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res);
2148                                                 else if (res == EBUSY )
2149                                                         if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res);
2150                                                 if (option_verbose > 4) ast_verbose("%s: chanreads: Couldnt get lock on owner[%s][%d][%d] channel to send frame!\n", p->dev,p->owner->name,(int)p->owner->lock.__m_owner,(int)p->owner->lock.__m_count);
2151                                         }
2152                                 }
2153 */
2154                                 if (option_verbose > 6) {
2155                                         short * data = (short*)readbuf;
2156                                         ast_verbose("%s: Read channel (codec=%d) %d %d\n", p->dev, fmt, data[0], data[1] );
2157                                 }  
2158                         }
2159                         else {
2160                                 if (option_verbose > 4) {
2161                                         ast_verbose("%s: p->stopreads[%d] p->owner[%p]\n", p->dev, p->stopreads,(void *)p->owner);
2162                                 }  
2163                         }
2164                 } else {
2165                         ast_log(LOG_WARNING,"%s: Record failure (%s)\n", p->dev, vpb_strerror(res));
2166                         vpb_record_buf_finish(p->handle);
2167                         vpb_record_buf_start(p->handle, fmt);
2168                 }
2169                 if (option_verbose > 4)
2170                         ast_verbose("%s: chanreads: Finished cycle...\n", p->dev);
2171         }
2172         p->read_state=0;
2173
2174         /* When stopreads seen, go away! */
2175         vpb_record_buf_finish(p->handle);
2176         p->read_state=0;
2177         ast_mutex_unlock(&p->record_lock);
2178
2179         if (option_verbose > 1)
2180                 ast_verbose(VERBOSE_PREFIX_2 "%s: Ending record mode (%d/%s)\n",
2181                          p->dev, p->stopreads, p->owner? "yes" : "no");     
2182         return NULL;
2183 }
2184
2185 static struct ast_channel *vpb_new(struct vpb_pvt *me, int state, char *context)
2186 {
2187         struct ast_channel *tmp; 
2188
2189         if (me->owner) {
2190             ast_log(LOG_WARNING, "Called vpb_new on owned channel (%s) ?!\n", me->dev);
2191             return NULL;
2192         }
2193         if (option_verbose > 3)
2194                 ast_verbose("%s: New call for context [%s]\n",me->dev,context);
2195             
2196         tmp = ast_channel_alloc(1);
2197         if (tmp) {
2198                 strncpy(tmp->name, me->dev, sizeof(tmp->name) - 1);
2199                 tmp->type = type;
2200                
2201                 /* Linear is the preferred format. Although Voicetronix supports other formats
2202                  * they are all converted to/from linear in the vpb code. Best for us to use
2203                  * linear since we can then adjust volume in this modules.
2204                  */
2205                 tmp->nativeformats = prefformat;
2206                 tmp->pvt->rawreadformat = AST_FORMAT_SLINEAR;
2207                 tmp->pvt->rawwriteformat =  AST_FORMAT_SLINEAR;
2208                 ast_setstate(tmp, state);
2209                 if (state == AST_STATE_RING)
2210                         tmp->rings = 1;
2211                 tmp->pvt->pvt = me;
2212                 /* set call backs */
2213                 tmp->pvt->send_digit = vpb_digit;
2214                 tmp->pvt->call = vpb_call;
2215                 tmp->pvt->hangup = vpb_hangup;
2216                 tmp->pvt->answer = vpb_answer;
2217                 tmp->pvt->read = vpb_read;
2218                 tmp->pvt->write = vpb_write;
2219                 tmp->pvt->bridge = vpb_bridge;
2220                 if (use_ast_ind == 0)
2221                         tmp->pvt->indicate = vpb_indicate;
2222                 tmp->pvt->fixup = vpb_fixup;
2223                 
2224                 strncpy(tmp->context, context, sizeof(tmp->context)-1);
2225                 if (strlen(me->ext))
2226                         strncpy(tmp->exten, me->ext, sizeof(tmp->exten)-1);
2227                 else
2228                         strncpy(tmp->exten, "s",  sizeof(tmp->exten) - 1);
2229                 if (strlen(me->language))
2230                         strncpy(tmp->language, me->language, sizeof(tmp->language)-1);
2231
2232                 me->owner = tmp;
2233      
2234                 me->bridge = NULL;
2235                 me->lastoutput = -1;
2236                 me->lastinput = -1;
2237                 me->last_ignore_dtmf = 1;
2238                 me->readthread = 0;
2239                 me->play_dtmf[0] = '\0';
2240                 
2241                 me->lastgrunt  = get_time_in_ms(); /* Assume at least one grunt tone seen now. */
2242
2243                 ast_mutex_lock(&usecnt_lock);
2244                 usecnt++;
2245                 ast_mutex_unlock(&usecnt_lock);
2246                 ast_update_use_count();
2247                 if (state != AST_STATE_DOWN) {
2248                         if (ast_pbx_start(tmp)) {
2249                                 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
2250                                 ast_hangup(tmp);
2251                         }
2252                 }
2253         } else {
2254                 ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
2255         }
2256         return tmp;
2257 }
2258
2259 static struct ast_channel *vpb_request(const char *type, int format, void *data, int *cause) 
2260 {
2261         int oldformat;
2262         struct vpb_pvt *p;
2263         struct ast_channel *tmp = NULL;
2264         char *name = strdup(data ? (char *)data : "");
2265         char *s, *sepstr;
2266         int group=-1;
2267
2268         oldformat = format;
2269         format &= prefformat;
2270         if (!format) {
2271                 ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat);
2272                 return NULL;
2273         }
2274
2275         sepstr = name;
2276         s = strsep(&sepstr, "/"); /* Handle / issues */
2277         if (!s) 
2278                 s = "";
2279         /* Check if we are looking for a group */
2280         if (toupper(name[0]) == 'G' || toupper(name[0])=='R') {
2281                 group=atoi(name+1);     
2282         }
2283         /* Search for an unowned channel */
2284         ast_mutex_lock(&iflock); {
2285                 p = iflist;
2286                 while(p) {
2287                         if (group == -1){
2288                                 if (strncmp(s, p->dev + 4, sizeof p->dev) == 0) {
2289                                         if (!p->owner) {
2290                                                 tmp = vpb_new(p, AST_STATE_DOWN, p->context);
2291                                                 break;
2292                                         }
2293                                 }
2294                         }
2295                         else {
2296                                 if ((p->group == group) && (!p->owner)) {
2297                                         tmp = vpb_new(p, AST_STATE_DOWN, p->context);
2298                                         break;
2299                                 }
2300                         }
2301                         p = p->next;
2302                 }
2303         } ast_mutex_unlock(&iflock);
2304
2305
2306         if (option_verbose > 1) 
2307                 ast_verbose(VERBOSE_PREFIX_2 " %s requested, got: [%s]\n",
2308                 name, tmp ? tmp->name : "None");
2309
2310         free(name);
2311
2312         restart_monitor();
2313         return tmp;
2314 }
2315
2316 static float parse_gain_value(char *gain_type, char *value)
2317 {
2318         float gain;
2319
2320         /* try to scan number */
2321         if (sscanf(value, "%f", &gain) != 1)
2322         {
2323                 ast_log(LOG_ERROR, "Invalid %s value '%s' in '%s' config\n", value, gain_type, config);
2324                 return DEFAULT_GAIN;
2325         }
2326
2327
2328         /* percentage? */
2329         /*if (value[strlen(value) - 1] == '%') */
2330         /*      return gain / (float)100; */
2331
2332         return gain;
2333 }
2334
2335 int load_module()
2336 {
2337         struct ast_config *cfg;
2338         struct ast_variable *v;
2339         struct vpb_pvt *tmp;
2340         int board = 0, group = 0;
2341         int mode = MODE_IMMEDIATE;
2342         float txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN; 
2343         float txswgain = 0, rxswgain = 0; 
2344         int first_channel = 1;
2345         int echo_cancel = DEFAULT_ECHO_CANCEL;
2346         int error = 0; /* Error flag */
2347         int bal1 = -1; /* Special value - means do not set */
2348         int bal2 = -1; 
2349         int bal3 = -1;
2350         char * callerid = NULL;
2351
2352         cfg = ast_load(config);
2353
2354         /* We *must* have a config file otherwise stop immediately */
2355         if (!cfg) {
2356                 ast_log(LOG_ERROR, "Unable to load config %s\n", config);
2357                 return -1;
2358         }  
2359
2360         vpb_seterrormode(VPB_ERROR_CODE);
2361
2362         ast_mutex_lock(&iflock); {
2363                 v = ast_variable_browse(cfg, "general");
2364                 while (v){
2365                         if (strcasecmp(v->name, "cards") == 0) {
2366                                 ast_log(LOG_NOTICE,"VPB Driver configured to use [%d] cards\n",atoi(v->value));
2367                         }
2368                         else if (strcasecmp(v->name, "indication") == 0) {
2369                                 use_ast_ind = 1;
2370                                 ast_log(LOG_NOTICE,"VPB driver using Asterisk Indication functions!\n");
2371                         }
2372                         v = v->next;
2373                 }
2374         
2375                 v = ast_variable_browse(cfg, "interfaces");
2376                 while(v) {
2377                         /* Create the interface list */
2378                         if (strcasecmp(v->name, "board") == 0) {
2379                                 board = atoi(v->value);
2380                         } else  if (strcasecmp(v->name, "group") == 0){
2381                                 group = atoi(v->value);
2382                         } else  if (strcasecmp(v->name, "useloopdrop") == 0){
2383                                 UseLoopDrop = atoi(v->value);
2384                         } else  if (strcasecmp(v->name, "usenativebridge") == 0){
2385                                 UseNativeBridge = atoi(v->value);
2386                         } else if (strcasecmp(v->name, "channel") == 0) {
2387                                 int channel = atoi(v->value);
2388                                 tmp = mkif(board, channel, mode, txgain, rxgain, txswgain, rxswgain, bal1, bal2, bal3, callerid, echo_cancel,group);
2389                                 if (tmp) {
2390                                         if(first_channel) {
2391                                                 mkbrd( tmp->vpb_model, echo_cancel );
2392                                                 first_channel = 0;
2393                                         }
2394                                         tmp->next = iflist;
2395                                         iflist = tmp;
2396                                 } else {
2397                                         ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value);
2398                                         error = -1;
2399                                         goto done;
2400                                 }
2401                         } else if (strcasecmp(v->name, "language") == 0) {
2402                                 strncpy(language, v->value, sizeof(language)-1);
2403                         } else if (strcasecmp(v->name, "callerid") == 0) {
2404                                 callerid = strdup(v->value);
2405                         } else if (strcasecmp(v->name, "mode") == 0) {
2406                                 if (strncasecmp(v->value, "di", 2) == 0) 
2407                                         mode = MODE_DIALTONE;
2408                                 else if (strncasecmp(v->value, "im", 2) == 0)
2409                                         mode = MODE_IMMEDIATE;
2410                                 else if (strncasecmp(v->value, "fx", 2) == 0)
2411                                         mode = MODE_FXO;
2412                                 else
2413                                         ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value);
2414                         } else if (!strcasecmp(v->name, "context")) {
2415                                 strncpy(context, v->value, sizeof(context)-1);
2416                         } else if (!strcasecmp(v->name, "echocancel")) {
2417                                 if (!strcasecmp(v->value, "off")) 
2418                                         echo_cancel = 0;
2419                         } else if (strcasecmp(v->name, "txgain") == 0) {
2420                                 txswgain = parse_gain_value(v->name, v->value);
2421                         } else if (strcasecmp(v->name, "rxgain") == 0) {
2422                                 rxswgain = parse_gain_value(v->name, v->value);
2423                         } else if (strcasecmp(v->name, "txhwgain") == 0) {
2424                                 txgain = parse_gain_value(v->name, v->value);
2425                         } else if (strcasecmp(v->name, "rxhwgain") == 0) {
2426                                 rxgain = parse_gain_value(v->name, v->value);
2427                         } else if (strcasecmp(v->name, "bal1") == 0) {
2428                                 bal1 = strtol(v->value, NULL, 16);
2429                                 if(bal1<0 || bal1>255) {
2430                                         ast_log(LOG_WARNING, "Bad bal1 value: %d\n", bal1);
2431                                         bal1 = -1;
2432                                 }
2433                         } else if (strcasecmp(v->name, "bal2") == 0) {
2434                                 bal2 = strtol(v->value, NULL, 16);
2435                                 if(bal2<0 || bal2>255) {
2436                                         ast_log(LOG_WARNING, "Bad bal2 value: %d\n", bal2);
2437                                         bal2 = -1;
2438                                 }
2439                         } else if (strcasecmp(v->name, "bal3") == 0) {
2440                                 bal3 = strtol(v->value, NULL, 16);
2441                                 if(bal3<0 || bal3>255) {
2442                                         ast_log(LOG_WARNING, "Bad bal3 value: %d\n", bal3);
2443                                         bal3 = -1;
2444                                 }
2445                         } else if (strcasecmp(v->name, "grunttimeout") == 0) {
2446                                 gruntdetect_timeout = 1000*atoi(v->value);
2447                         }
2448                         v = v->next;
2449                 }
2450
2451                 if (gruntdetect_timeout < 1000)
2452                         gruntdetect_timeout = 1000;
2453
2454                 done: (void)0;
2455         } ast_mutex_unlock(&iflock);
2456
2457         ast_destroy(cfg);
2458
2459         if (!error && ast_channel_register(type, tdesc, prefformat, vpb_request) != 0) {
2460                 ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
2461                 error = -1;
2462         }
2463
2464
2465         if (error)
2466                 unload_module();
2467         else 
2468                 restart_monitor(); /* And start the monitor for the first time */
2469
2470         return error;
2471 }
2472
2473
2474 int unload_module()
2475 {
2476         struct vpb_pvt *p;
2477         /* First, take us out of the channel loop */
2478         ast_channel_unregister(type);
2479
2480         ast_mutex_lock(&iflock); {
2481                 /* Hangup all interfaces if they have an owner */
2482                 p = iflist;
2483                 while(p) {
2484                         if (p->owner)
2485                                 ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
2486                         p = p->next;
2487                 }
2488                 iflist = NULL;
2489         } ast_mutex_unlock(&iflock);
2490
2491         ast_mutex_lock(&monlock); {
2492                 if (mthreadactive > -1) {
2493                         pthread_cancel(monitor_thread);
2494                         pthread_join(monitor_thread, NULL);
2495                 }
2496                 mthreadactive = -2;
2497         } ast_mutex_unlock(&monlock);
2498
2499         ast_mutex_lock(&iflock); {
2500                 /* Destroy all the interfaces and free their memory */
2501
2502                 while(iflist) {
2503                         p = iflist;                 
2504                         ast_mutex_destroy(&p->lock);
2505                         pthread_cancel(p->readthread);
2506                         ast_mutex_destroy(&p->owner_lock);
2507                         ast_mutex_destroy(&p->record_lock);
2508                         ast_mutex_destroy(&p->play_lock);
2509                         ast_mutex_destroy(&p->play_dtmf_lock);
2510                         p->readthread = 0;
2511
2512                         vpb_close(p->handle);
2513
2514                         iflist = iflist->next;
2515
2516                         free(p);
2517                 }
2518                 iflist = NULL;
2519         } ast_mutex_unlock(&iflock);
2520
2521         ast_mutex_lock(&bridge_lock); {
2522                 memset(bridges, 0, sizeof bridges);          
2523         } ast_mutex_unlock(&bridge_lock);
2524         ast_mutex_destroy(&bridge_lock);
2525         for(int i = 0; i < max_bridges; i++ ) {
2526                 ast_mutex_destroy(&bridges[i].lock);
2527                 pthread_cond_destroy(&bridges[i].cond);
2528         }
2529         free(bridges);
2530
2531         return 0;
2532 }
2533
2534 int usecount()
2535 {
2536         int res;
2537         ast_mutex_lock(&usecnt_lock);
2538         res = usecnt;
2539         ast_mutex_unlock(&usecnt_lock);
2540         return res;
2541 }
2542
2543 char *description()
2544 {
2545         return desc;
2546 }
2547
2548 char *key()
2549 {
2550         return ASTERISK_GPL_KEY;
2551 }
2552
2553 /**/
2554 #if defined(__cplusplus) || defined(c_plusplus)
2555  }
2556 #endif
2557 /**/