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 #ifdef TONES_AU
 122 static VPB_TONE Dialtone     = {440,    440,    440,    -10,    -10,    -10,    5000,   0   };
 123 static VPB_TONE Busytone     = {470,    0,      0,      -10,    -100,   -100,   5000,   0 };
 124 static VPB_TONE Ringbacktone = {400,    50,     440,    -10,    -10,    -10,    1400,   800 };
 125 #endif
 126 /*
 127 #define TONES_USA
 128 #ifdef TONES_USA
 129 static VPB_TONE Dialtone     = {425,   0,   0, -16,  -100, -100, 10000,    0};
 130 static VPB_TONE Busytone     = {425,   0,   0, -10,  -100, -100,   500,  500};
 131 static VPB_TONE Ringbacktone = {400,   425,   450, -20,  -20, -20,  1000, 1000};
 132 #endif
 133 */
 134
 135 /* grunt tone defn's */
 136 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 } } };
 137 static VPB_DETECT toned_ungrunt = { 2, VPB_GRUNT, 1, 2000, 1, 0, 0, -40, 0, 0, 30, 40, { { 0, 0, 0, 0 } } };
 138
 139 /* Use loop drop detection */
 140 static int UseLoopDrop=1;
 141
 142 /* To use or not to use Native bridging */
 143 static int UseNativeBridge=1;
 144
 145 /* Use Asterisk Indication or VPB */
 146 static int use_ast_ind=0;
 147
 148 #define TIMER_PERIOD_RINGBACK 2000
 149 #define TIMER_PERIOD_BUSY 700
 150
 151 #define VPB_EVENTS_ALL (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 152                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 153                         |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
 154 #define VPB_EVENTS_NODROP (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 155                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 156                         |VPB_MRING_OFF|VPB_MSTATION_FLASH)
 157 #define VPB_EVENTS_NODTMF (VPB_MRING|VPB_MDIGIT|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 158                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 159                         |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
 160 #define VPB_EVENTS_STAT (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 161                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 162                         |VPB_MRING_OFF|VPB_MSTATION_FLASH)
 163
 164
 165 /* Dialing parameters for Australia */
 166 /* #define DIAL_WITH_CALL_PROGRESS */
 167 VPB_TONE_MAP DialToneMap[] = {  { VPB_BUSY_AUST, VPB_CALL_DISCONNECT, 0 },
 168                                 { VPB_DIAL, VPB_CALL_DIALTONE, 0 },
 169                                 { VPB_RINGBACK_308, VPB_CALL_RINGBACK, 0 },
 170                                 { VPB_BUSY_AUST, VPB_CALL_BUSY, 0 },
 171                                 { VPB_GRUNT, VPB_CALL_GRUNT, 0 },
 172                                 { 0, 0, 1 } };
 173 #define VPB_DIALTONE_WAIT 2000 /* Wait up to 2s for a dialtone */
 174 #define VPB_RINGWAIT 4000 /* Wait up to 4s for ring tone after dialing */
 175 #define VPB_CONNECTED_WAIT 4000 /* If no ring tone detected for 4s then consider call connected */
 176 #define TIMER_PERIOD_NOANSWER 120000 /* Let it ring for 120s before deciding theres noone there */
 177
 178 #define MAX_BRIDGES_V4PCI 2
 179 #define MAX_BRIDGES_V12PCI 128
 180
 181 /* port states */
 182 #define VPB_STATE_ONHOOK        0
 183 #define VPB_STATE_OFFHOOK       1
 184 #define VPB_STATE_DIALLING      2
 185 #define VPB_STATE_JOINED        3
 186 #define VPB_STATE_GETDTMF       4
 187 #define VPB_STATE_PLAYDIAL      5
 188 #define VPB_STATE_PLAYBUSY      6
 189 #define VPB_STATE_PLAYRING      7
 190
 191
 192 typedef struct  {
 193         int inuse;
 194         struct ast_channel *c0, *c1, **rc;
 195         struct ast_frame **fo;
 196         int flags;
 197         ast_mutex_t lock;
 198         pthread_cond_t cond;
 199         int endbridge;
 200 } vpb_bridge_t;
 201
 202 static vpb_bridge_t * bridges;
 203 static int max_bridges = MAX_BRIDGES_V4PCI;
 204
 205 AST_MUTEX_DEFINE_STATIC(bridge_lock);
 206
 207 typedef enum {
 208         vpb_model_unknown = 0,
 209         vpb_model_v4pci,
 210         vpb_model_v12pci
 211 } vpb_model_t;
 212
 213 static struct vpb_pvt {
 214
 215         ast_mutex_t owner_lock;                 /* Protect blocks that expect ownership to remain the same */
 216         struct ast_channel *owner;              /* Channel who owns us, possibly NULL */
 217
 218         int golock;                             /* Got owner lock ? */
 219
 220         int mode;                               /* fxo/imediate/dialtone*/
 221         int handle;                             /* Handle for vpb interface */
 222
 223         int state;                              /* used to keep port state (internal to driver) */
 224
 225         int group;                              /* Which group this port belongs to */
 226
 227         char dev[256];                          /* Device name, eg vpb/1-1 */
 228         vpb_model_t vpb_model;                  /* card model */
 229
 230         struct ast_frame f, fr;                 /* Asterisk frame interface */
 231         char buf[VPB_MAX_BUF];                  /* Static buffer for reading frames */
 232
 233         int dialtone;                           /* NOT USED */
 234         float txgain, rxgain;                   /* Hardware gain control */
 235         float txswgain, rxswgain;               /* Software gain control */
 236
 237         int wantdtmf;                           /* Waiting for DTMF. */
 238         char context[AST_MAX_EXTENSION];        /* The context for this channel */
 239
 240         char ext[AST_MAX_EXTENSION];            /* DTMF buffer for the ext[ens] */
 241         char language[MAX_LANGUAGE];            /* language being used */
 242         char callerid[AST_MAX_EXTENSION];       /* CallerId used for directly connected phone */
 243
 244         int dtmf_caller_pos;                    /* DTMF CallerID detection (Brazil)*/
 245
 246         int lastoutput;                         /* Holds the last Audio format output'ed */
 247         int lastinput;                          /* Holds the last Audio format input'ed */
 248         int last_ignore_dtmf;
 249
 250         void *busy_timer;                       /* Void pointer for busy vpb_timer */
 251         int busy_timer_id;                      /* unique timer ID for busy timer */
 252
 253         void *ringback_timer;                   /* Void pointer for ringback vpb_timer */
 254         int ringback_timer_id;                  /* unique timer ID for ringback timer */
 255
 256         double lastgrunt;                       /* time stamp (secs since epoc) of last grunt event */
 257
 258         ast_mutex_t lock;                       /* This one just protects bridge ptr below */
 259         vpb_bridge_t *bridge;
 260
 261         int stopreads;                          /* Stop reading...*/
 262         int read_state;                         /* Read state */
 263         int chuck_count;                        /* a count of packets weve chucked away!*/
 264         pthread_t readthread;                   /* For monitoring read channel. One per owned channel. */
 265
 266         ast_mutex_t record_lock;                /* This one prevents reentering a record_buf block */
 267         ast_mutex_t play_lock;                  /* This one prevents reentering a play_buf block */
 268         int  play_buf_time;                     /* How long the last play_buf took */
 269
 270         ast_mutex_t play_dtmf_lock;
 271         char play_dtmf[16];
 272
 273         struct vpb_pvt *next;                   /* Next channel in list */
 274
 275 } *iflist = NULL;
 276
 277 static struct ast_channel *vpb_new(struct vpb_pvt *i, int state, char *context);
 278 static void *do_chanreads(void *pvt);
 279
 280 /* Can't get vpb_bridge() working on v4pci without either a horrible
 281 *  high pitched feedback noise or bad hiss noise depending on gain settings
 282 *  Get asterisk to do the bridging
 283 */
 284 #define BAD_V4PCI_BRIDGE
 285
 286 /* This one enables a half duplex bridge which may be required to prevent high pitched
 287  * feedback when getting asterisk to do the bridging and when using certain gain settings.
 288  */
 289 /* #define HALF_DUPLEX_BRIDGE */
 290
 291 /* This is the Native bridge code, which Asterisk will try before using its own bridging code */
 292 static int vpb_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc)
 293 {
 294         struct vpb_pvt *p0 = (struct vpb_pvt *)c0->pvt->pvt;
 295         struct vpb_pvt *p1 = (struct vpb_pvt *)c1->pvt->pvt;
 296         int i, res;
 297
 298         struct ast_channel *cs[3];
 299         struct ast_channel *who;
 300         int to = -1;
 301         struct ast_frame *f;
 302
 303         cs[0] = c0;
 304         cs[1] = c1;
 305
 306         #ifdef BAD_V4PCI_BRIDGE
 307         if(p0->vpb_model==vpb_model_v4pci)
 308                 return -2;
 309         #endif
 310         if ( UseNativeBridge != 1){
 311                 return -2;
 312         }
 313
 314 /*
 315         ast_mutex_lock(&p0->lock);
 316         ast_mutex_lock(&p1->lock);
 317 */
 318
 319         /* Bridge channels, check if we can.  I believe we always can, so find a slot.*/
 320
 321         ast_mutex_lock(&bridge_lock); {
 322                 for (i = 0; i < max_bridges; i++)
 323                         if (!bridges[i].inuse)
 324                                 break;
 325                 if (i < max_bridges) {
 326                         bridges[i].inuse = 1;
 327                         bridges[i].endbridge = 0;
 328                         bridges[i].flags = flags;
 329                         bridges[i].rc = rc;
 330                         bridges[i].fo = fo;
 331                         bridges[i].c0 = c0;
 332                         bridges[i].c1 = c1;
 333                 }
 334         } ast_mutex_unlock(&bridge_lock);
 335
 336         if (i == max_bridges) {
 337                 ast_log(LOG_WARNING, "vpb_bridge: Failed to bridge %s and %s!\n", c0->name, c1->name);
 338                 ast_mutex_unlock(&p0->lock);
 339                 ast_mutex_unlock(&p1->lock);
 340                 return -2;
 341         } else {
 342                 /* Set bridge pointers. You don't want to take these locks while holding bridge lock.*/
 343                 ast_mutex_lock(&p0->lock); {
 344                         p0->bridge = &bridges[i];
 345                 } ast_mutex_unlock(&p0->lock);
 346
 347                 ast_mutex_lock(&p1->lock); {
 348                         p1->bridge = &bridges[i];
 349                 } ast_mutex_unlock(&p1->lock);
 350
 351                 if (option_verbose>1)
 352                         ast_verbose(VERBOSE_PREFIX_2 "vpb_bridge: Bridging call entered with [%s, %s]\n", c0->name, c1->name);
 353         }
 354
 355         #ifdef HALF_DUPLEX_BRIDGE
 356
 357         if (option_verbose>1)
 358                 ast_verbose(VERBOSE_PREFIX_2 "vpb_bridge: Starting half-duplex bridge [%s, %s]\n", c0->name, c1->name);
 359
 360         int dir = 0;
 361
 362         memset(p0->buf, 0, sizeof p0->buf);
 363         memset(p1->buf, 0, sizeof p1->buf);
 364
 365         vpb_record_buf_start(p0->handle, VPB_ALAW);
 366         vpb_record_buf_start(p1->handle, VPB_ALAW);
 367
 368         vpb_play_buf_start(p0->handle, VPB_ALAW);
 369         vpb_play_buf_start(p1->handle, VPB_ALAW);
 370
 371         while( !bridges[i].endbridge ) {
 372                 struct vpb_pvt *from, *to;
 373                 if(++dir%2) {
 374                         from = p0;
 375                         to = p1;
 376                 } else {
 377                         from = p1;
 378                         to = p0;
 379                 }
 380                 vpb_record_buf_sync(from->handle, from->buf, VPB_SAMPLES);
 381                 vpb_play_buf_sync(to->handle, from->buf, VPB_SAMPLES);
 382         }
 383
 384         vpb_record_buf_finish(p0->handle);
 385         vpb_record_buf_finish(p1->handle);
 386
 387         vpb_play_buf_finish(p0->handle);
 388         vpb_play_buf_finish(p1->handle);
 389
 390         if (option_verbose>1)
 391                 ast_verbose(VERBOSE_PREFIX_2 "vpb_bridge: Finished half-duplex bridge [%s, %s]\n", c0->name, c1->name);
 392
 393         res = VPB_OK;
 394
 395         #else
 396
 397         res = vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_ON, i+1 /* resource 1 & 2 only for V4PCI*/ );
 398         if (res == VPB_OK) {
 399                 /* pthread_cond_wait(&bridges[i].cond, &bridges[i].lock);*/ /* Wait for condition signal. */
 400                 while( !bridges[i].endbridge ) {
 401                         /* Are we really ment to be doing nothing ?!?! */
 402                         who = ast_waitfor_n(cs, 2, &to);
 403                         if (!who) {
 404                                 ast_log(LOG_DEBUG, "vpb_bridge: Empty frame read...\n");
 405                                 /* check for hangup / whentohangup */
 406                                 if (ast_check_hangup(c0) || ast_check_hangup(c1))
 407                                         break;
 408                                 continue;
 409                         }
 410                         f = ast_read(who);
 411                         if (!f || ((f->frametype == AST_FRAME_DTMF) &&
 412                                            (((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) ||
 413                                        ((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1))))) {
 414                                 *fo = f;
 415                                 *rc = who;
 416                                 ast_log(LOG_DEBUG, "vpb_bridge: Got a [%s]\n", f ? "digit" : "hangup");
 417 /*
 418                                 if ((c0->pvt->pvt == pvt0) && (!c0->_softhangup)) {
 419                                         if (pr0->set_rtp_peer(c0, NULL, NULL, 0))
 420                                                 ast_log(LOG_WARNING, "Channel '%s' failed to revert\n", c0->name);
 421                                 }
 422                                 if ((c1->pvt->pvt == pvt1) && (!c1->_softhangup)) {
 423                                         if (pr1->set_rtp_peer(c1, NULL, NULL, 0))
 424                                                 ast_log(LOG_WARNING, "Channel '%s' failed to revert back\n", c1->name);
 425                                 }
 426 */
 427                                 /* That's all we needed */
 428                                 /*return 0; */
 429                                 break;
 430                         } else {
 431                                 if ((f->frametype == AST_FRAME_DTMF) ||
 432                                         (f->frametype == AST_FRAME_VOICE) ||
 433                                         (f->frametype == AST_FRAME_VIDEO))
 434                                         {
 435                                         /* Forward voice or DTMF frames if they happen upon us */
 436                                         /* Actually I dont think we want to forward on any frames!
 437                                         if (who == c0) {
 438                                                 ast_write(c1, f);
 439                                         } else if (who == c1) {
 440                                                 ast_write(c0, f);
 441                                         }
 442                                         */
 443                                 }
 444                                 ast_frfree(f);
 445                         }
 446                         /* Swap priority not that it's a big deal at this point */
 447                         cs[2] = cs[0];
 448                         cs[0] = cs[1];
 449                         cs[1] = cs[2];
 450                 };
 451                 vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_OFF, i+1 /* resource 1 & 2 only for V4PCI*/ );
 452         }
 453
 454         #endif
 455
 456         ast_mutex_lock(&bridge_lock); {
 457                 bridges[i].inuse = 0;
 458         } ast_mutex_unlock(&bridge_lock);
 459
 460         p0->bridge = NULL;
 461         p1->bridge = NULL;
 462
 463
 464         if (option_verbose>1)
 465                 ast_verbose(VERBOSE_PREFIX_2 "Bridging call done with [%s, %s] => %d\n", c0->name, c1->name, res);
 466
 467 /*
 468         ast_mutex_unlock(&p0->lock);
 469         ast_mutex_unlock(&p1->lock);
 470 */
 471         return (res==VPB_OK)?0:-1;
 472 }
 473
 474 static double get_time_in_ms()
 475 {
 476         struct timeval tv;
 477         gettimeofday(&tv, NULL);
 478         return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000);
 479 }
 480
 481 /* Caller ID can be located in different positions between the rings depending on your Telco
 482  * Australian (Telstra) callerid starts 700ms after 1st ring and finishes 1.5s after first ring
 483  * Use ANALYSE_CID to record rings and determine location of callerid
 484  */
 485 /* #define ANALYSE_CID */
 486 #define RING_SKIP 600
 487 #define CID_MSECS 1700
 488
 489 static void get_callerid(struct vpb_pvt *p)
 490 {
 491         short buf[CID_MSECS*8]; /* 8kHz sampling rate */
 492         double cid_record_time;
 493         int rc;
 494         struct ast_channel *owner = p->owner;
 495         void * ws;
 496         char * file="cidsams.wav";
 497
 498
 499         if( ast_mutex_trylock(&p->record_lock) == 0 ) {
 500
 501                 char callerid[AST_MAX_EXTENSION] = "";
 502
 503                 cid_record_time = get_time_in_ms();
 504                 if (option_verbose>3)
 505                         ast_verbose(VERBOSE_PREFIX_4 "CID record - start\n");
 506
 507                 /* Skip any trailing ringtone */
 508                 vpb_sleep(RING_SKIP);
 509
 510                 if (option_verbose>3)
 511                         ast_verbose(VERBOSE_PREFIX_4 "CID record - skipped %fms trailing ring\n",
 512                                  get_time_in_ms() - cid_record_time);
 513                 cid_record_time = get_time_in_ms();
 514
 515                 /* Record bit between the rings which contains the callerid */
 516                 vpb_record_buf_start(p->handle, VPB_LINEAR);
 517                 rc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
 518                 vpb_record_buf_finish(p->handle);
 519 /*
 520                 vpb_wave_open_write(&ws, file, VPB_LINEAR);
 521                 vpb_wave_write(ws,(char*)buf,sizeof(buf));
 522                 vpb_wave_close_write(ws);
 523 */
 524
 525                 if (option_verbose>3)
 526                         ast_verbose(VERBOSE_PREFIX_4 "CID record - recorded %fms between rings\n",
 527                                 get_time_in_ms() - cid_record_time);
 528
 529                 ast_mutex_unlock(&p->record_lock);
 530
 531                 if( rc != VPB_OK ) {
 532                         ast_log(LOG_ERROR, "Failed to record caller id sample on %s\n", p->dev );
 533                         return;
 534                 }
 535
 536                 VPB_CID *cli_struct = new VPB_CID;
 537                 cli_struct->ra_cldn[0]=0;
 538                 cli_struct->ra_cn[0]=0;
 539                 /* This decodes FSK 1200baud type callerid */
 540                 if ((rc=vpb_cid_decode2(cli_struct, buf, CID_MSECS*8)) == VPB_OK ) {
 541                         if (owner->cid.cid_num)
 542                                 free(owner->cid.cid_num);
 543                         owner->cid.cid_num=NULL;
 544                         if (owner->cid.cid_name)
 545                                 free(owner->cid.cid_name);
 546                         owner->cid.cid_name=NULL;
 547
 548                         if (cli_struct->ra_cldn[0]=='\0'){
 549                                 owner->cid.cid_num = strdup(cli_struct->cldn);
 550                                 owner->cid.cid_name = strdup(cli_struct->cn);
 551                                 if (option_verbose>3)
 552                                         ast_verbose(VERBOSE_PREFIX_4 "CID record - got [%s] [%s]\n",owner->cid.cid_num,owner->cid.cid_name );
 553                         }
 554                         else {
 555                                 ast_log(LOG_ERROR,"CID record - No caller id avalable on %s \n", p->dev);
 556                         }
 557
 558                 } else {
 559                         ast_log(LOG_ERROR, "CID record - Failed to decode caller id on %s - %s\n", p->dev, vpb_strerror(rc) );
 560                         strncpy(callerid,"unknown", sizeof(callerid) - 1);
 561                 }
 562                 delete cli_struct;
 563
 564         } else
 565                 ast_log(LOG_ERROR, "CID record - Failed to set record mode for caller id on %s\n", p->dev );
 566 }
 567 static void get_callerid_ast(struct vpb_pvt *p)
 568 {
 569         struct callerid_state *cs;
 570         char buf[1024];
 571         char *name=NULL, *number=NULL;
 572         int flags;
 573         int rc=0,vrc;
 574         int sam_count=0;
 575         struct ast_channel *owner = p->owner;
 576         float old_gain;
 577         int which_cid;
 578         void * ws;
 579         char * file="cidsams.wav";
 580
 581         if(!strcasecmp(p->callerid, "on")) {
 582         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collected caller ID already\n");
 583                 return;
 584         }
 585         else if(!strcasecmp(p->callerid, "v23")) {
 586                 which_cid=CID_SIG_V23;
 587         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID v23[%s/%d]...\n",p->callerid,which_cid);
 588         }
 589         else if(!strcasecmp(p->callerid, "bell")) {
 590                 which_cid=CID_SIG_BELL;
 591         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID bell[%s/%d]...\n",p->callerid,which_cid);
 592         }
 593         else {
 594                 if (option_verbose>3)
 595                         ast_verbose(VERBOSE_PREFIX_4 "Caller ID disabled\n");
 596                 return;
 597         }
 598         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID type[%s/%d]...\n",p->callerid,which_cid);
 599 /*      vpb_sleep(RING_SKIP); */
 600 /*      vpb_record_get_gain(p->handle, &old_gain); */
 601         cs = callerid_new(which_cid);
 602         if (cs){
 603 /*              vpb_wave_open_write(&ws, file, VPB_MULAW); */
 604 /*              vpb_record_set_gain(p->handle, 3.0); */
 605 /*              vpb_record_set_hw_gain(p->handle,12.0); */
 606                 vpb_record_buf_start(p->handle, VPB_MULAW);
 607                 while((rc == 0)&&(sam_count<8000*3)){
 608                         vrc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
 609                         if (vrc != VPB_OK)
 610                                 ast_log(LOG_ERROR, "%s: Caller ID couldnt read audio buffer!\n",p->dev);
 611                         rc = callerid_feed(cs,(unsigned char *)buf,sizeof(buf),AST_FORMAT_ULAW);
 612                         vpb_wave_write(ws,(char*)buf,sizeof(buf));
 613                         sam_count+=sizeof(buf);
 614                         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID samples [%d][%d]...\n",sam_count,rc);
 615                 }
 616                 vpb_record_buf_finish(p->handle);
 617 /*              vpb_wave_close_write(ws); */
 618                 if (rc == 1){
 619                         callerid_get(cs, &name, &number, &flags);
 620                         if (option_verbose>0)
 621                                 ast_verbose(VERBOSE_PREFIX_1 "%s: Caller ID name [%s] number [%s] flags [%d]\n",p->dev,name, number,flags);
 622                 }
 623                 else {
 624                         ast_log(LOG_ERROR, "%s: Failed to decode Caller ID \n", p->dev );
 625                 }
 626 /*              vpb_record_set_gain(p->handle, old_gain); */
 627 /*              vpb_record_set_hw_gain(p->handle,6.0); */
 628         }
 629         else {
 630                 ast_log(LOG_ERROR, "%s: Failed to create Caller ID struct\n", p->dev );
 631         }
 632         if (owner->cid.cid_num) {
 633                 free(owner->cid.cid_num);
 634                 owner->cid.cid_num = NULL;
 635         }
 636         if (owner->cid.cid_name) {
 637                 free(owner->cid.cid_name);
 638                 owner->cid.cid_name = NULL;
 639         }
 640         if (number)
 641                 ast_shrink_phone_number(number);
 642         if (number && !ast_strlen_zero(number)) {
 643                 owner->cid.cid_num = strdup(number);
 644                 owner->cid.cid_ani = strdup(number);
 645         }
 646         if (name && !ast_strlen_zero(name))
 647                 owner->cid.cid_name = strdup(name);
 648
 649         if (cs)
 650                 callerid_free(cs);
 651 }
 652
 653 /* Terminate any tones we are presently playing */
 654 static void stoptone( int handle)
 655 {
 656         int ret;
 657         VPB_EVENT je;
 658         while(vpb_playtone_state(handle)!=VPB_OK){
 659                 vpb_tone_terminate(handle);
 660                 ret = vpb_get_event_ch_async(handle,&je);
 661                 if ((ret == VPB_OK)&&(je.type != VPB_DIALEND)){
 662                         if (option_verbose > 3){
 663                                         ast_verbose(VERBOSE_PREFIX_4 "Stop tone collected a wrong event!![%d]\n",je.type);
 664                         }
 665 /*                      vpb_put_event(&je); */
 666                 }
 667                 vpb_sleep(10);
 668         }
 669 }
 670
 671 /* Safe vpb_playtone_async */
 672 static int playtone( int handle, VPB_TONE *tone)
 673 {
 674         int ret=VPB_OK;
 675         stoptone(handle);
 676         if (option_verbose > 3)
 677                 ast_verbose(VERBOSE_PREFIX_4 "[%02d]: Playing tone\n", handle);
 678         ret = vpb_playtone_async(handle, tone);
 679         return ret;
 680 }
 681
 682 static inline int monitor_handle_owned(struct vpb_pvt *p, VPB_EVENT *e)
 683 {
 684         struct ast_frame f = {AST_FRAME_CONTROL}; /* default is control, Clear rest. */
 685         int endbridge = 0;
 686         int res=0;
 687
 688         if (option_verbose > 3)
 689                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: [%d=>%d]\n",
 690                         p->dev, e->type, e->data);
 691
 692         f.src = type;
 693         switch (e->type) {
 694                 case VPB_RING:
 695                         if (p->mode == MODE_FXO) {
 696                                 f.subclass = AST_CONTROL_RING;
 697                         } else
 698                                 f.frametype = -1; /* ignore ring on station port. */
 699                         break;
 700
 701                 case VPB_RING_OFF:
 702                         f.frametype = -1;
 703                         break;
 704
 705                 case VPB_TIMEREXP:
 706                         if (e->data == p->busy_timer_id) {
 707                                 playtone(p->handle,&Busytone);
 708                                 p->state = VPB_STATE_PLAYBUSY;
 709                                 vpb_timer_stop(p->busy_timer);
 710                                 vpb_timer_start(p->busy_timer);
 711                                 f.frametype = -1;
 712                         } else if (e->data == p->ringback_timer_id) {
 713                                 playtone(p->handle, &Ringbacktone);
 714                                 vpb_timer_stop(p->ringback_timer);
 715                                 vpb_timer_start(p->ringback_timer);
 716                                 f.frametype = -1;
 717                         } else {
 718                                 f.frametype = -1; /* Ignore. */
 719                         }
 720                         break;
 721
 722                 case VPB_DTMF:
 723                         if (p->owner->_state == AST_STATE_UP) {
 724                                         f.frametype = AST_FRAME_DTMF;
 725                                         f.subclass = e->data;
 726                         } else
 727                                 f.frametype = -1;
 728                         break;
 729
 730                 case VPB_TONEDETECT:
 731                         if (e->data == VPB_BUSY || e->data == VPB_BUSY_308 || e->data == VPB_BUSY_AUST ) {
 732                                 if (option_verbose > 3)
 733                                         ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: BUSY\n", p->dev);
 734                                 if (p->owner->_state == AST_STATE_UP) {
 735                                         f.subclass = AST_CONTROL_HANGUP;
 736                                 }
 737                                 else {
 738                                         f.subclass = AST_CONTROL_BUSY;
 739                                 }
 740                         } else if (e->data == VPB_GRUNT) {
 741                                 if( ( get_time_in_ms() - p->lastgrunt ) > gruntdetect_timeout ) {
 742                                         /* Nothing heard on line for a very long time
 743                                          * Timeout connection */
 744                                         if (option_verbose > 2)
 745                                                 ast_verbose(VERBOSE_PREFIX_3 "grunt timeout\n");
 746                                         ast_log(LOG_NOTICE,"%s: Line hangup due of lack of conversation\n",p->dev);
 747                                         f.subclass = AST_CONTROL_HANGUP;
 748                                 } else {
 749                                         p->lastgrunt = get_time_in_ms();
 750                                         f.frametype = -1;
 751                                 }
 752                         } else
 753                                 f.frametype = -1;
 754                         break;
 755
 756                 case VPB_CALLEND:
 757                         #ifdef DIAL_WITH_CALL_PROGRESS
 758                         if (e->data == VPB_CALL_CONNECTED)
 759                                 f.subclass = AST_CONTROL_ANSWER;
 760                         else if (e->data == VPB_CALL_NO_DIAL_TONE || e->data == VPB_CALL_NO_RING_BACK)
 761                                 f.subclass =  AST_CONTROL_CONGESTION;
 762                         else if (e->data == VPB_CALL_NO_ANSWER || e->data == VPB_CALL_BUSY)
 763                                 f.subclass = AST_CONTROL_BUSY;
 764                         else if (e->data  == VPB_CALL_DISCONNECTED)
 765                                 f.subclass = AST_CONTROL_HANGUP;
 766                         #else
 767                         ast_log(LOG_NOTICE,"%s: Got call progress callback but blind dialing \n", p->dev);
 768                         f.frametype = -1;
 769                         #endif
 770                         break;
 771
 772                 case VPB_STATION_OFFHOOK:
 773                         f.subclass = AST_CONTROL_ANSWER;
 774                         break;
 775
 776                 case VPB_DROP:
 777                         if ((p->mode == MODE_FXO)&&(UseLoopDrop)){ /* ignore loop drop on stations */
 778                                 if (p->owner->_state == AST_STATE_UP)
 779                                         f.subclass = AST_CONTROL_HANGUP;
 780                                 else
 781                                         f.frametype = -1;
 782                         }
 783                         break;
 784                 case VPB_STATION_ONHOOK:
 785                         f.subclass = AST_CONTROL_HANGUP;
 786                         break;
 787
 788                 case VPB_STATION_FLASH:
 789                         f.subclass = AST_CONTROL_FLASH;
 790                         break;
 791
 792                 /* Called when dialing has finished and ringing starts
 793                  * No indication that call has really been answered when using blind dialing
 794                  */
 795                 case VPB_DIALEND:
 796                         if (p->state < 5){
 797                                 f.subclass = AST_CONTROL_ANSWER;
 798                                 if (option_verbose > 1)
 799                                         ast_verbose(VERBOSE_PREFIX_2 "%s: Dialend\n", p->dev);
 800                         } else {
 801                                 f.frametype = -1;
 802                         }
 803                         break;
 804
 805                 case VPB_PLAY_UNDERFLOW:
 806                         f.frametype = -1;
 807                         vpb_reset_play_fifo_alarm(p->handle);
 808                         break;
 809
 810                 case VPB_RECORD_OVERFLOW:
 811                         f.frametype = -1;
 812                         vpb_reset_record_fifo_alarm(p->handle);
 813                         break;
 814
 815                 default:
 816                         f.frametype = -1;
 817                         break;
 818         }
 819
 820 /*
 821         if (option_verbose > 3) ast_verbose("%s: LOCKING in handle_owned [%d]\n", p->dev,res);
 822         res = ast_mutex_lock(&p->lock);
 823         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
 824 */
 825         {
 826                 if (p->bridge) { /* Check what happened, see if we need to report it. */
 827                         switch (f.frametype) {
 828                                 case AST_FRAME_DTMF:
 829                                         if (    !(p->bridge->c0 == p->owner &&
 830                                                         (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_0) ) &&
 831                                                 !(p->bridge->c1 == p->owner &&
 832                                                         (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_1) ))
 833                                                 /* Kill bridge, this is interesting. */
 834                                                 endbridge = 1;
 835                                         break;
 836
 837                                 case AST_FRAME_CONTROL:
 838                                         if (!(p->bridge->flags & AST_BRIDGE_IGNORE_SIGS))
 839                                         #if 0
 840                                         if (f.subclass == AST_CONTROL_BUSY ||
 841                                         f.subclass == AST_CONTROL_CONGESTION ||
 842                                         f.subclass == AST_CONTROL_HANGUP ||
 843                                         f.subclass == AST_CONTROL_FLASH)
 844                                         #endif
 845                                                 endbridge = 1;
 846                                         break;
 847
 848                                 default:
 849                                         break;
 850                         }
 851                         if (endbridge) {
 852                                 if (p->bridge->fo)
 853                                         *p->bridge->fo = ast_frisolate(&f);
 854                                 if (p->bridge->rc)
 855                                         *p->bridge->rc = p->owner;
 856
 857                                 ast_mutex_lock(&p->bridge->lock); {
 858                                         p->bridge->endbridge = 1;
 859                                         pthread_cond_signal(&p->bridge->cond);
 860                                 } ast_mutex_unlock(&p->bridge->lock);
 861                         }
 862                 }
 863         }
 864
 865         if (endbridge){
 866                 res = ast_mutex_unlock(&p->lock);
 867 /*
 868                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res);
 869 */
 870                 return 0;
 871         }
 872
 873         if (option_verbose > 3)
 874                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: Prepared frame type[%d]subclass[%d], bridge=%p owner=[%s]\n",
 875                         p->dev, f.frametype, f.subclass, (void *)p->bridge, p->owner->name);
 876
 877         /* Trylock used here to avoid deadlock that can occur if we
 878          * happen to be in here handling an event when hangup is called
 879          * Problem is that hangup holds p->owner->lock
 880          */
 881         if ((f.frametype >= 0)&& (f.frametype != AST_FRAME_NULL)&&(p->owner)) {
 882                 if (ast_mutex_trylock(&p->owner->lock)==0)  {
 883                         ast_queue_frame(p->owner, &f);
 884                         ast_mutex_unlock(&p->owner->lock);
 885                         if (option_verbose > 3)
 886                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handled_owned: Queued Frame to [%s]\n", p->dev,p->owner->name);
 887                 } else {
 888                         ast_verbose("%s: handled_owned: Missed event %d/%d \n",
 889                                 p->dev,f.frametype, f.subclass);
 890                 }
 891         }
 892         res = ast_mutex_unlock(&p->lock);
 893 /*
 894         if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res);
 895 */
 896
 897         return 0;
 898 }
 899
 900 static inline int monitor_handle_notowned(struct vpb_pvt *p, VPB_EVENT *e)
 901 {
 902         char s[2] = {0};
 903         struct ast_channel *owner = p->owner;
 904
 905         if (option_verbose > 3) {
 906                 char str[VPB_MAX_STR];
 907                 vpb_translate_event(e, str);
 908                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, event[%d][%s]=[%d]\n",
 909                         p->dev, p->mode, e->type,str, e->data);
 910         }
 911
 912         switch(e->type) {
 913                 case VPB_RING:
 914                         if (p->mode == MODE_FXO) /* FXO port ring, start * */ {
 915                                 vpb_new(p, AST_STATE_RING, p->context);
 916                                 if(!strcasecmp(p->callerid, "on")) {
 917                                         if (option_verbose>3)
 918                                                 ast_verbose(VERBOSE_PREFIX_4 "Using VPB Caller ID\n");
 919                                         get_callerid(p);        /* Australian Caller ID only between 1st and 2nd ring  */
 920                                 }
 921                                 get_callerid_ast(p);    /* Caller ID using the ast functions */
 922                         }
 923                         break;
 924
 925                 case VPB_RING_OFF:
 926                         break;
 927
 928                 case VPB_STATION_OFFHOOK:
 929                         if (p->mode == MODE_IMMEDIATE)
 930                                 vpb_new(p,AST_STATE_RING, p->context);
 931                         else {
 932                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: playing dialtone\n",p->dev);
 933                                 playtone(p->handle, &Dialtone);
 934                                 p->state=VPB_STATE_PLAYDIAL;
 935                                 p->wantdtmf = 1;
 936                                 p->ext[0] = 0;  /* Just to be sure & paranoid.*/
 937                         }
 938                         break;
 939
 940                 case VPB_DIALEND:
 941                         if (p->mode == MODE_DIALTONE){
 942                                 if (p->state == VPB_STATE_PLAYDIAL) {
 943                                         playtone(p->handle, &Dialtone);
 944                                         p->wantdtmf = 1;
 945                                         p->ext[0] = 0;  /* Just to be sure & paranoid. */
 946                                 }
 947                                 /* These are not needed as they have timers to restart them
 948                                 else if (p->state == VPB_STATE_PLAYBUSY) {
 949                                         playtone(p->handle, &Busytone);
 950                                         p->wantdtmf = 1;
 951                                         p->ext[0] = 0;
 952                                 }
 953                                 else if (p->state == VPB_STATE_PLAYRING) {
 954                                         playtone(p->handle, &Ringbacktone);
 955                                         p->wantdtmf = 1;
 956                                         p->ext[0] = 0;
 957                                 }
 958                                 */
 959                         } else {
 960                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Got a DIALEND when not really expected\n",p->dev);
 961                         }
 962                         break;
 963
 964                 case VPB_STATION_ONHOOK:        /* clear ext */
 965                         stoptone(p->handle);
 966                         p->wantdtmf = 1 ;
 967                         p->ext[0] = 0;
 968                         p->state=VPB_STATE_ONHOOK;
 969                         break;
 970
 971                 case VPB_DTMF:
 972                         if (p->state == VPB_STATE_ONHOOK){
 973                                 /* DTMF's being passed while on-hook maybe Caller ID */
 974                                 if ( p->mode == MODE_FXO ) {
 975                                         if ( e->data == DTMF_CID_START ) { /* CallerID Start signal */
 976                                                 p->dtmf_caller_pos = 0; /* Leaves the first digit out */
 977                                                 memset(p->callerid,0,AST_MAX_EXTENSION);
 978                                         }
 979                                         else if ( e->data == DTMF_CID_STOP ) { /* CallerID End signal */
 980                                                 p->callerid[p->dtmf_caller_pos] = '\0';
 981                                                 if (option_verbose > 2)
 982                                                         ast_verbose(VERBOSE_PREFIX_3 " %s: DTMF CallerID %s\n",p->dev,p->callerid);
 983                                                 if (owner->cid.cid_num)
 984                                                         free(owner->cid.cid_num);
 985                                                 owner->cid.cid_num=NULL;
 986                                                 if (owner->cid.cid_name)
 987                                                         free(owner->cid.cid_name);
 988                                                 owner->cid.cid_name=NULL;
 989                                                 owner->cid.cid_num = strdup(p->callerid);
 990                                         } else if ( p->dtmf_caller_pos < AST_MAX_EXTENSION ) {
 991                                                 if ( p->dtmf_caller_pos >= 0 )
 992                                                         p->callerid[p->dtmf_caller_pos] = e->data;
 993                                                 p->dtmf_caller_pos++;
 994                                         }
 995                                 }
 996                                 break;
 997                         }
 998                         if (p->wantdtmf == 1) {
 999                                 stoptone(p->handle);
1000                                 p->wantdtmf = 0;
1001                         }
1002                         p->state=VPB_STATE_GETDTMF;
1003                         s[0] = e->data;
1004                         strncat(p->ext, s, sizeof(p->ext) - strlen(p->ext) - 1);
1005                         if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)){
1006                                 if (option_verbose > 3) {
1007                                         ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Matched on [%s] in [%s]\n", p->dev,p->ext , p->context);
1008                                 }
1009                                 vpb_new(p,AST_STATE_RING, p->context);
1010                         } else if (!ast_canmatch_extension(NULL, p->context, p->ext, 1, p->callerid)){
1011                                 if (ast_exists_extension(NULL, "default", p->ext, 1, p->callerid)) {
1012                                         vpb_new(p,AST_STATE_RING, "default");
1013                                 } else if (!ast_canmatch_extension(NULL, "default", p->ext, 1, p->callerid)) {
1014                                         if (option_verbose > 3) {
1015                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: can't match anything in %s or default\n",
1016                                                          p->dev, p->context);
1017                                         }
1018                                         playtone(p->handle, &Busytone);
1019                                         vpb_timer_stop(p->busy_timer);
1020                                         vpb_timer_start(p->busy_timer);
1021                                         p->state = VPB_STATE_PLAYBUSY;
1022                                 }
1023                         }
1024                         break;
1025
1026                 default:
1027                         /* Ignore.*/
1028                         break;
1029         }
1030
1031         if (option_verbose > 3)
1032                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, [%d=>%d]\n",
1033                         p->dev, p->mode, e->type, e->data);
1034
1035         return 0;
1036 }
1037
1038 static void *do_monitor(void *unused)
1039 {
1040
1041         /* Monitor thread, doesn't die until explicitly killed. */
1042
1043         if (option_verbose > 1)
1044                 ast_verbose(VERBOSE_PREFIX_2 "Starting vpb monitor thread[%ld]\n",
1045         pthread_self());
1046
1047         pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
1048
1049         for(;;) {
1050                 VPB_EVENT e;
1051                 VPB_EVENT je;
1052                 char str[VPB_MAX_STR];
1053                 struct vpb_pvt *p;
1054
1055                 /*
1056                 if (option_verbose > 3)
1057                      ast_verbose(VERBOSE_PREFIX_4 "Monitor waiting for event\n");
1058                 */
1059
1060                 int res = vpb_get_event_sync(&e, VPB_WAIT_TIMEOUT);
1061                 if( (res==VPB_NO_EVENTS) || (res==VPB_TIME_OUT) ){
1062                         /*
1063                         if (option_verbose > 3){
1064                                 if (res ==  VPB_NO_EVENTS){
1065                                         ast_verbose(VERBOSE_PREFIX_4 "No events....\n");
1066                                 } else {
1067                                         ast_verbose(VERBOSE_PREFIX_4 "No events, timed out....\n");
1068                                 }
1069                         }
1070                         */
1071                         continue;
1072                 }
1073
1074                 if (res != VPB_OK) {
1075                         ast_log(LOG_ERROR,"Monitor get event error %s\n", vpb_strerror(res) );
1076                         ast_verbose("Monitor get event error %s\n", vpb_strerror(res) );
1077                         continue;
1078                 }
1079
1080                 str[0] = 0;
1081
1082                 p = NULL;
1083
1084                 ast_mutex_lock(&monlock); {
1085
1086                         if (e.type == VPB_NULL_EVENT) {
1087                                 if (option_verbose > 3)
1088                                         ast_verbose(VERBOSE_PREFIX_4 "Monitor got null event\n");
1089                         }
1090                         else {
1091                                 vpb_translate_event(&e, str);
1092                                 if (strlen(str)>1){
1093                                         str[(strlen(str)-1)]='\0';
1094                                 }
1095
1096                                 ast_mutex_lock(&iflock); {
1097                                         p = iflist;
1098                                         while (p && p->handle != e.handle)
1099                                                 p = p->next;
1100                                 } ast_mutex_unlock(&iflock);
1101
1102                                 if (p && (option_verbose > 3))
1103                                         ast_verbose(VERBOSE_PREFIX_4 "%s: Event [%d=>%s] \n",
1104                                                 p ? p->dev : "null", e.type, str );
1105                         }
1106
1107                 } ast_mutex_unlock(&monlock);
1108
1109                 if (!p) {
1110                         if (e.type != VPB_NULL_EVENT){
1111                                 ast_log(LOG_WARNING, "Got event [%s][%d], no matching iface!\n", str,e.type);
1112                                 if (option_verbose > 3){
1113                                         ast_verbose(VERBOSE_PREFIX_4 "vpb/ERR: No interface for Event [%d=>%s] \n",e.type,str );
1114                                 }
1115                         }
1116                         continue;
1117                 }
1118
1119                 /* flush the event from the channel event Q */
1120                 vpb_get_event_ch_async(e.handle,&je);
1121                 if (option_verbose > 4){
1122                         vpb_translate_event(&je, str);
1123                         ast_verbose("%s: Flushing event [%d]=>%s\n",p->dev,je.type,str);
1124                 }
1125
1126                 /* Check for ownership and locks */
1127                 if ((p->owner)&&(!p->golock)){
1128                         /* Need to get owner lock */
1129                         /* Safely grab both p->lock and p->owner->lock so that there
1130                         cannot be a race with something from the other side */
1131                         /*
1132                         ast_mutex_lock(&p->lock);
1133                         while(ast_mutex_trylock(&p->owner->lock)) {
1134                                 ast_mutex_unlock(&p->lock);
1135                                 usleep(1);
1136                                 ast_mutex_lock(&p->lock);
1137                                 if (!p->owner)
1138                                         break;
1139                         }
1140                         if (p->owner)
1141                                 p->golock=1;
1142                         */
1143                 }
1144                 /* Two scenarios: Are you owned or not. */
1145                 if (p->owner) {
1146                         monitor_handle_owned(p, &e);
1147                 } else {
1148                         monitor_handle_notowned(p, &e);
1149                 }
1150                 /* if ((!p->owner)&&(p->golock)){
1151                         ast_mutex_unlock(&p->owner->lock);
1152                         ast_mutex_unlock(&p->lock);
1153                 }
1154                 */
1155
1156         }
1157
1158         return NULL;
1159 }
1160
1161 static int restart_monitor(void)
1162 {
1163         int error = 0;
1164
1165         /* If we're supposed to be stopped -- stay stopped */
1166         if (mthreadactive == -2)
1167                 return 0;
1168
1169         if (option_verbose > 3)
1170                 ast_verbose(VERBOSE_PREFIX_4 "Restarting monitor\n");
1171
1172         ast_mutex_lock(&monlock); {
1173                 if (monitor_thread == pthread_self()) {
1174                         ast_log(LOG_WARNING, "Cannot kill myself\n");
1175                         error = -1;
1176                         if (option_verbose > 3)
1177                                 ast_verbose(VERBOSE_PREFIX_4 "Monitor trying to kill monitor\n");
1178                 }
1179                 else {
1180                         if (mthreadactive != -1) {
1181                                 /* Why do other drivers kill the thread? No need says I, simply awake thread with event. */
1182                                 VPB_EVENT e;
1183                                 e.handle = 0;
1184                                 e.type = VPB_NULL_EVENT;
1185                                 e.data = 0;
1186
1187                                 if (option_verbose > 3)
1188                                         ast_verbose(VERBOSE_PREFIX_4 "Trying to reawake monitor\n");
1189
1190                                 vpb_put_event(&e);
1191                         } else {
1192                                 /* Start a new monitor */
1193                                 int pid = ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL);
1194                                 if (option_verbose > 3)
1195                                         ast_verbose(VERBOSE_PREFIX_4 "Created new monitor thread %d\n",pid);
1196                                 if (pid < 0) {
1197                                         ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
1198                                         error = -1;
1199                                 } else
1200                                         mthreadactive = 0; /* Started the thread!*/
1201                         }
1202                 }
1203         } ast_mutex_unlock(&monlock);
1204
1205         if (option_verbose > 3)
1206                 ast_verbose(VERBOSE_PREFIX_4 "Monitor restarted\n");
1207
1208         return error;
1209 }
1210
1211 /* Per board config that must be called after vpb_open() */
1212 static void mkbrd(vpb_model_t model, int echo_cancel)
1213 {
1214         if(!bridges) {
1215                 if(model==vpb_model_v4pci)
1216                         max_bridges = MAX_BRIDGES_V4PCI;
1217                 bridges = (vpb_bridge_t *)malloc(max_bridges * sizeof(vpb_bridge_t) );
1218                 if(!bridges)
1219                         ast_log(LOG_ERROR, "Failed to initialize bridges\n");
1220                 else {
1221                         memset(bridges,0,max_bridges * sizeof(vpb_bridge_t));
1222                         for(int i = 0; i < max_bridges; i++ ) {
1223                                 ast_mutex_init(&bridges[i].lock);
1224                                 pthread_cond_init(&bridges[i].cond, NULL);
1225                         }
1226                 }
1227         }
1228         if(!echo_cancel) {
1229                 if (model==vpb_model_v4pci) {
1230                         vpb_echo_canc_disable();
1231                         ast_log(LOG_NOTICE, "Voicetronix echo cancellation OFF\n");
1232                 }
1233                 else {
1234                 /* need to it port by port for OpenSwitch*/
1235                 }
1236         } else {
1237                 if (model==vpb_model_v4pci) {
1238                         vpb_echo_canc_enable();
1239                         ast_log(LOG_NOTICE, "Voicetronix echo cancellation ON\n");
1240                 }
1241                 else {
1242                 /* need to it port by port for OpenSwitch*/
1243                 }
1244         }
1245 }
1246
1247 struct vpb_pvt *mkif(int board, int channel, int mode, float txgain, float rxgain,
1248                          float txswgain, float rxswgain, int bal1, int bal2, int bal3,
1249                          char * callerid, int echo_cancel, int group )
1250 {
1251         struct vpb_pvt *tmp;
1252         char buf[64];
1253
1254         tmp = (struct vpb_pvt *)calloc(1, sizeof *tmp);
1255
1256         if (!tmp)
1257                 return NULL;
1258
1259         tmp->handle = vpb_open(board, channel);
1260
1261         if (tmp->handle < 0) {
1262                 ast_log(LOG_WARNING, "Unable to create channel vpb/%d-%d: %s\n",
1263                                         board, channel, strerror(errno));
1264                 free(tmp);
1265                 return NULL;
1266         }
1267
1268         snprintf(tmp->dev, sizeof(tmp->dev), "vpb/%d-%d", board, channel);
1269
1270         tmp->mode = mode;
1271
1272         tmp->group = group;
1273
1274
1275         strncpy(tmp->language, language, sizeof(tmp->language) - 1);
1276         strncpy(tmp->context, context, sizeof(tmp->context) - 1);
1277
1278         if(callerid) {
1279                 strncpy(tmp->callerid, callerid, sizeof(tmp->callerid) - 1);
1280                 free(callerid);
1281         } else {
1282                 strncpy(tmp->callerid, "unknown", sizeof(tmp->callerid) - 1);
1283         }
1284
1285         /* check if codec balances have been set in the config file */
1286         if (bal3>=0) {
1287                 if ((bal1>=0) && !(bal1 & 32)) bal1 |= 32;
1288                         vpb_set_codec_reg(tmp->handle, 0x42, bal3);
1289         }
1290         if(bal1>=0) vpb_set_codec_reg(tmp->handle, 0x32, bal1);
1291         if(bal2>=0) vpb_set_codec_reg(tmp->handle, 0x3a, bal2);
1292
1293         tmp->txgain = txgain;
1294         vpb_play_set_hw_gain(tmp->handle, (txgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txgain);
1295
1296         tmp->rxgain = rxgain;
1297         vpb_record_set_hw_gain(tmp->handle, (rxgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxgain);
1298
1299         tmp->txswgain = txswgain;
1300         vpb_play_set_gain(tmp->handle, (txswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txswgain);
1301
1302         tmp->rxswgain = rxswgain;
1303         vpb_record_set_gain(tmp->handle, (rxswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxswgain);
1304
1305         tmp->vpb_model = vpb_model_unknown;
1306         if( vpb_get_model(buf) == VPB_OK ) {
1307                 if(strcmp(buf,"V12PCI")==0)
1308                         tmp->vpb_model = vpb_model_v12pci;
1309                 else if(strcmp(buf,"VPB4")==0)
1310                         tmp->vpb_model = vpb_model_v4pci;
1311         }
1312
1313         ast_mutex_init(&tmp->owner_lock);
1314         ast_mutex_init(&tmp->lock);
1315         ast_mutex_init(&tmp->record_lock);
1316         ast_mutex_init(&tmp->play_lock);
1317         ast_mutex_init(&tmp->play_dtmf_lock);
1318
1319         /* set default read state */
1320         tmp->read_state = 0;
1321
1322         tmp->golock=0;
1323
1324         tmp->busy_timer_id = vpb_timer_get_unique_timer_id();
1325         vpb_timer_open(&tmp->busy_timer, tmp->handle, tmp->busy_timer_id, TIMER_PERIOD_BUSY);
1326
1327         tmp->ringback_timer_id = vpb_timer_get_unique_timer_id();
1328         vpb_timer_open(&tmp->ringback_timer, tmp->handle, tmp->ringback_timer_id, TIMER_PERIOD_RINGBACK);
1329
1330         if (mode == MODE_FXO){
1331                 vpb_set_event_mask(tmp->handle, VPB_EVENTS_ALL );
1332         }
1333         else {
1334                 vpb_set_event_mask(tmp->handle, VPB_EVENTS_STAT );
1335         }
1336
1337         if ((tmp->vpb_model == vpb_model_v12pci) && (echo_cancel)){
1338                 vpb_hostecho_on(tmp->handle);
1339         }
1340
1341         /* define grunt tone */
1342         vpb_settonedet(tmp->handle,&toned_ungrunt);
1343
1344         ast_log(LOG_NOTICE,"Voicetronix %s channel %s initialized (rxgain=%f txgain=%f) (%f/%f/0x%X/0x%X/0x%X)\n",
1345                 (tmp->vpb_model==vpb_model_v4pci)?"V4PCI":
1346                 (tmp->vpb_model==vpb_model_v12pci)?"V12PCI":"[Unknown model]",
1347                 tmp->dev, tmp->rxswgain, tmp->txswgain, tmp->rxgain, tmp->txgain, bal1, bal2, bal3 );
1348
1349         return tmp;
1350 }
1351
1352 static int vpb_indicate(struct ast_channel *ast, int condition)
1353 {
1354         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1355         int res = 0;
1356         int tmp = 0;
1357
1358         if (option_verbose > 3)
1359                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate [%d] state[%d]\n", p->dev, condition,ast->_state);
1360 /*
1361         if (ast->_state != AST_STATE_UP) {
1362                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate Not in AST_STATE_UP\n", p->dev, condition,ast->_state);
1363                 return res;
1364         }
1365 */
1366
1367 /*
1368         if (option_verbose > 3) ast_verbose("%s: LOCKING in indicate \n", p->dev);
1369         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1370 */
1371         ast_mutex_lock(&p->lock);
1372         switch(condition) {
1373                 case AST_CONTROL_BUSY:
1374                 case AST_CONTROL_CONGESTION:
1375                         if (ast->_state == AST_STATE_UP) {
1376                                 playtone(p->handle, &Busytone);
1377                                 p->state = VPB_STATE_PLAYBUSY;
1378                                 vpb_timer_stop(p->busy_timer);
1379                                 vpb_timer_start(p->busy_timer);
1380                         }
1381                         break;
1382                 case AST_CONTROL_RINGING:
1383                         if (ast->_state == AST_STATE_UP) {
1384                                 playtone(p->handle, &Ringbacktone);
1385                                 p->state = VPB_STATE_PLAYRING;
1386                                 if (option_verbose > 3)
1387                                         ast_verbose(VERBOSE_PREFIX_4 "%s: vpb indicate: setting ringback timer [%d]\n", p->dev,p->ringback_timer_id);
1388
1389                                 vpb_timer_stop(p->ringback_timer);
1390                                 vpb_timer_start(p->ringback_timer);
1391                         }
1392                         break;
1393                 case AST_CONTROL_ANSWER:
1394                 case -1: /* -1 means stop playing? */
1395                         vpb_timer_stop(p->ringback_timer);
1396                         vpb_timer_stop(p->busy_timer);
1397                         stoptone(p->handle);
1398                         break;
1399                 case AST_CONTROL_HANGUP:
1400                         if (ast->_state == AST_STATE_UP) {
1401                                 playtone(p->handle, &Busytone);
1402                                 p->state = VPB_STATE_PLAYBUSY;
1403                                 vpb_timer_stop(p->busy_timer);
1404                                 vpb_timer_start(p->busy_timer);
1405                         }
1406                         break;
1407
1408                 default:
1409                         res = 0;
1410                         break;
1411         }
1412         tmp = ast_mutex_unlock(&p->lock);
1413 /*
1414         if (option_verbose > 3) ast_verbose("%s: unLOCKING in indicate [%d]\n", p->dev,tmp);
1415 */
1416         return res;
1417 }
1418
1419 static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
1420 {
1421         struct vpb_pvt *p = (struct vpb_pvt *)newchan->pvt->pvt;
1422         int res = 0;
1423
1424 /*
1425         if (option_verbose > 3) ast_verbose("%s: LOCKING in fixup \n", p->dev);
1426         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1427 */
1428         ast_mutex_lock(&p->lock);
1429         ast_log(LOG_DEBUG, "New owner for channel %s is %s\n", p->dev, newchan->name);
1430
1431         if (p->owner == oldchan) {
1432                 p->owner = newchan;
1433         }
1434
1435         if (newchan->_state == AST_STATE_RINGING){
1436                 if (use_ast_ind == 1)
1437                         ast_indicate(newchan, AST_CONTROL_RINGING);
1438                 else
1439                         vpb_indicate(newchan, AST_CONTROL_RINGING);
1440         }
1441
1442         res= ast_mutex_unlock(&p->lock);
1443 /*
1444         if (option_verbose > 3) ast_verbose("%s: unLOCKING in fixup [%d]\n", p->dev,res);
1445 */
1446         return 0;
1447 }
1448
1449 static int vpb_digit(struct ast_channel *ast, char digit)
1450 {
1451         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1452         char s[2];
1453         int res = 0;
1454
1455 /*
1456         if (option_verbose > 3) ast_verbose("%s: LOCKING in digit \n", p->dev);
1457         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1458 */
1459         ast_mutex_lock(&p->lock);
1460
1461
1462         s[0] = digit;
1463         s[1] = '\0';
1464
1465         if (option_verbose > 3)
1466                 ast_verbose(VERBOSE_PREFIX_4 "%s: play digit[%s]\n", p->dev, s);
1467
1468         ast_mutex_lock(&p->play_dtmf_lock);
1469         strncat(p->play_dtmf,s,sizeof(*p->play_dtmf));
1470         ast_mutex_unlock(&p->play_dtmf_lock);
1471
1472         res = ast_mutex_unlock(&p->lock);
1473 /*
1474         if (option_verbose > 3) ast_verbose("%s: unLOCKING in digit [%d]\n", p->dev,res);
1475 */
1476         return 0;
1477 }
1478
1479 /* Places a call out of a VPB channel */
1480 static int vpb_call(struct ast_channel *ast, char *dest, int timeout)
1481 {
1482         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1483         int res = 0,i;
1484         char *s = strrchr(dest, '/');
1485         char dialstring[254] = "";
1486         int tmp = 0;
1487
1488 /*
1489         if (option_verbose > 3) ast_verbose("%s: LOCKING in call \n", p->dev);
1490         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1491 */
1492         ast_mutex_lock(&p->lock);
1493
1494         if (s)
1495                 s = s + 1;
1496         else
1497                 s = dest;
1498         strncpy(dialstring, s, sizeof(dialstring) - 1);
1499         for (i=0; dialstring[i] != '\0' ; i++) {
1500                 if ((dialstring[i] == 'w') || (dialstring[i] == 'W'))
1501                         dialstring[i] = ',';
1502                 else if ((dialstring[i] == 'f') || (dialstring[i] == 'F'))
1503                         dialstring[i] = '&';
1504         }
1505         if (option_verbose > 3)
1506                 ast_verbose(VERBOSE_PREFIX_4 "%s: starting call\n", p->dev);
1507
1508         if (ast->_state != AST_STATE_DOWN && ast->_state != AST_STATE_RESERVED) {
1509                 ast_log(LOG_WARNING, "vpb_call on %s neither down nor reserved!\n", ast->name);
1510                 tmp = ast_mutex_unlock(&p->lock);
1511 /*
1512                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp);
1513 */
1514                 return -1;
1515         }
1516         if (p->mode != MODE_FXO)  /* Station port, ring it. */
1517                 res = vpb_ring_station_async(p->handle, VPB_RING_STATION_ON,0);
1518         else {
1519                 VPB_CALL call;
1520
1521                 /* Dial must timeout or it can leave channels unuseable */
1522                 if( timeout == 0 )
1523                         timeout = TIMER_PERIOD_NOANSWER;
1524                 else
1525                         timeout = timeout * 1000; /* convert from secs to ms. */
1526
1527                 /* These timeouts are only used with call progress dialing */
1528                 call.dialtones = 1; /* Number of dialtones to get outside line */
1529                 call.dialtone_timeout = VPB_DIALTONE_WAIT; /* Wait this long for dialtone (ms) */
1530                 call.ringback_timeout = VPB_RINGWAIT; /* Wait this long for ringing after dialing (ms) */
1531                 call.inter_ringback_timeout = VPB_CONNECTED_WAIT; /* If ringing stops for this long consider it connected (ms) */
1532                 call.answer_timeout = timeout; /* Time to wait for answer after ringing starts (ms) */
1533                 memcpy( &call.tone_map,  DialToneMap, sizeof(DialToneMap) );
1534                 vpb_set_call(p->handle, &call);
1535
1536                 if (option_verbose > 1)
1537                         ast_verbose(VERBOSE_PREFIX_2 "%s: Calling %s on %s \n",p->dev, dialstring, ast->name);
1538
1539                 if (option_verbose > 2) {
1540                         int j;
1541                         ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s %d/%dms/%dms/%dms/%dms\n", p->dev
1542                                 , ast->name, call.dialtones, call.dialtone_timeout
1543                                 , call.ringback_timeout, call.inter_ringback_timeout
1544                                 , call.answer_timeout );
1545                         for( j=0; !call.tone_map[j].terminate; j++ )
1546                                 ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s tone %d->%d\n", p->dev,
1547                                         ast->name, call.tone_map[j].tone_id, call.tone_map[j].call_id);
1548                 }
1549
1550                 if (option_verbose > 4)
1551                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1552                 vpb_disable_event(p->handle, VPB_MDROP);
1553                 vpb_sethook_sync(p->handle,VPB_OFFHOOK);
1554                 p->state=VPB_STATE_OFFHOOK;
1555
1556                 #ifndef DIAL_WITH_CALL_PROGRESS
1557                 vpb_sleep(300);
1558                 if (option_verbose > 4)
1559                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1560                 vpb_enable_event(p->handle, VPB_MDROP);
1561                 res = vpb_dial_async(p->handle, dialstring);
1562                 #else
1563                 if (option_verbose > 4)
1564                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1565                 vpb_enable_event(p->handle, VPB_MDROP);
1566                 res = vpb_call_async(p->handle, dialstring);
1567                 #endif
1568
1569                 if (res != VPB_OK) {
1570                         ast_log(LOG_DEBUG, "Call on %s to %s failed: %s\n", ast->name, s, vpb_strerror(res));
1571                         res = -1;
1572                 } else
1573                         res = 0;
1574         }
1575
1576         if (option_verbose > 2)
1577                 ast_verbose(VERBOSE_PREFIX_3 "%s: VPB Calling %s [t=%d] on %s returned %d\n",p->dev , s, timeout, ast->name, res);
1578         if (res == 0) {
1579                 ast_setstate(ast, AST_STATE_RINGING);
1580                 ast_queue_control(ast,AST_CONTROL_RINGING);
1581         }
1582
1583         if (!p->readthread){
1584                 ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
1585         }
1586
1587         tmp = ast_mutex_unlock(&p->lock);
1588 /*
1589         if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp);
1590 */
1591         return res;
1592 }
1593
1594 static int vpb_hangup(struct ast_channel *ast)
1595 {
1596         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1597         VPB_EVENT je;
1598         char str[VPB_MAX_STR];
1599         int res =0 ;
1600
1601 /*
1602         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev);
1603         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);
1604         if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self());
1605         ast_mutex_lock(&p->lock);
1606 */
1607         if (option_verbose > 1)
1608                 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup requested\n", ast->name);
1609
1610         if (!ast->pvt || !ast->pvt->pvt) {
1611                 ast_log(LOG_WARNING, "%s: channel not connected?\n", ast->name);
1612                 res = ast_mutex_unlock(&p->lock);
1613 /*
1614                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res);
1615 */
1616                 return 0;
1617         }
1618
1619
1620
1621         /* Stop record */
1622         p->stopreads = 1;
1623         if( p->readthread ){
1624                 pthread_join(p->readthread, NULL);
1625                 if(option_verbose>3)
1626                         ast_verbose( VERBOSE_PREFIX_4 "%s: stopped record thread on %s\n",ast->name,p->dev);
1627         }
1628
1629         /* Stop play */
1630         if (p->lastoutput != -1) {
1631                 if(option_verbose>1)
1632                         ast_verbose( VERBOSE_PREFIX_2 "%s: Ending play mode on %s\n",ast->name,p->dev);
1633                 vpb_play_terminate(p->handle);
1634                 ast_mutex_lock(&p->play_lock); {
1635                         vpb_play_buf_finish(p->handle);
1636                 } ast_mutex_unlock(&p->play_lock);
1637         }
1638
1639         if(option_verbose>3)
1640                 ast_verbose( VERBOSE_PREFIX_4 "%s: Setting state down\n",ast->name);
1641         ast_setstate(ast,AST_STATE_DOWN);
1642
1643
1644 /*
1645         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev);
1646         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);
1647         if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self());
1648 */
1649         ast_mutex_lock(&p->lock);
1650
1651         if (p->mode != MODE_FXO) {
1652                 /* station port. */
1653                 vpb_ring_station_async(p->handle, VPB_RING_STATION_OFF,0);
1654                 if(p->state!=VPB_STATE_ONHOOK){
1655                         /* This is causing a "dial end" "play tone" loop
1656                         playtone(p->handle, &Busytone);
1657                         p->state = VPB_STATE_PLAYBUSY;
1658                         if(option_verbose>4)
1659                                 ast_verbose( VERBOSE_PREFIX_4 "%s: Station offhook[%d], playing busy tone\n",
1660                                                                 ast->name,p->state);
1661                         */
1662                 }
1663                 else {
1664                         stoptone(p->handle);
1665                 }
1666         } else {
1667                 stoptone(p->handle); /* Terminates any dialing */
1668                 vpb_sethook_sync(p->handle, VPB_ONHOOK);
1669                 p->state=VPB_STATE_ONHOOK;
1670         }
1671         while (VPB_OK==vpb_get_event_ch_async(p->handle,&je)){
1672                 if(option_verbose>3) {
1673                         vpb_translate_event(&je, str);
1674                         ast_verbose( VERBOSE_PREFIX_4 "%s: Flushing event [%d]=>%s\n",ast->name,je.type,str);
1675                 }
1676         }
1677
1678         p->readthread = 0;
1679         p->lastoutput = -1;
1680         p->lastinput = -1;
1681         p->last_ignore_dtmf = 1;
1682         p->ext[0]  = 0;
1683         p->dialtone = 0;
1684
1685         p->owner = NULL;
1686         ast->pvt->pvt=NULL;
1687
1688         ast_mutex_lock(&usecnt_lock); {
1689                 usecnt--;
1690         } ast_mutex_unlock(&usecnt_lock);
1691         ast_update_use_count();
1692
1693         if (option_verbose > 1)
1694                 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup complete\n", ast->name);
1695
1696         restart_monitor();
1697 /*
1698         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);
1699 */
1700         res = ast_mutex_unlock(&p->lock);
1701 /*
1702         if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res);
1703         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);
1704 */
1705         return 0;
1706 }
1707
1708 static int vpb_answer(struct ast_channel *ast)
1709 {
1710         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1711         VPB_EVENT je;
1712         int ret;
1713         int res = 0;
1714 /*
1715         if (option_verbose > 3) ast_verbose("%s: LOCKING in answer \n", p->dev);
1716         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1717 */
1718         ast_mutex_lock(&p->lock);
1719
1720         if (option_verbose > 3)
1721                         ast_verbose(VERBOSE_PREFIX_4 "%s: Answering channel\n",p->dev);
1722
1723         if (p->mode == MODE_FXO){
1724                 if (option_verbose > 3)
1725                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1726                 vpb_disable_event(p->handle, VPB_MDROP);
1727         }
1728
1729         if (ast->_state != AST_STATE_UP) {
1730                 if (p->mode == MODE_FXO){
1731                         vpb_sethook_sync(p->handle, VPB_OFFHOOK);
1732                         p->state=VPB_STATE_OFFHOOK;
1733 /*                      vpb_sleep(500);
1734                         ret = vpb_get_event_ch_async(p->handle,&je);
1735                         if ((ret == VPB_OK)&&((je.type != VPB_DROP)&&(je.type != VPB_RING))){
1736                                 if (option_verbose > 3){
1737                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: Answer collected a wrong event!!\n",p->dev);
1738                                 }
1739                                 vpb_put_event(&je);
1740                         }
1741 */
1742                 }
1743                 ast_setstate(ast, AST_STATE_UP);
1744
1745                 if(option_verbose>1)
1746 /*
1747                         ast_verbose( VERBOSE_PREFIX_2 "%s: Answered call from %s on %s [%s]\n", p->dev,
1748                                         p->owner->callerid, ast->name,(p->mode == MODE_FXO)?"FXO":"FXS");
1749 */
1750                         ast_verbose( VERBOSE_PREFIX_2 "%s: Answered call on %s [%s]\n", p->dev,
1751                                          ast->name,(p->mode == MODE_FXO)?"FXO":"FXS");
1752
1753                 ast->rings = 0;
1754                 if( !p->readthread ){
1755         /*              res = ast_mutex_unlock(&p->lock); */
1756         /*              ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); */
1757                         ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
1758                 } else {
1759                         if(option_verbose>3)
1760                                 ast_verbose(VERBOSE_PREFIX_4 "%s: Record thread already running!!\n",p->dev);
1761                 }
1762         } else {
1763                 if(option_verbose>3) {
1764                         ast_verbose(VERBOSE_PREFIX_4 "%s: Answered state is up\n",p->dev);
1765                 }
1766         /*      res = ast_mutex_unlock(&p->lock); */
1767         /*      ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); */
1768         }
1769         vpb_sleep(500);
1770         if (p->mode == MODE_FXO){
1771                 if (option_verbose > 3)
1772                                 ast_verbose("%s: Re-enabling Loop Drop detection\n",p->dev);
1773                 vpb_enable_event(p->handle,VPB_MDROP);
1774         }
1775         res = ast_mutex_unlock(&p->lock);
1776 /*
1777         if(option_verbose>3) ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res);
1778 */
1779         return 0;
1780 }
1781
1782 static struct ast_frame  *vpb_read(struct ast_channel *ast)
1783 {
1784         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1785         static struct ast_frame f = {AST_FRAME_NULL};
1786
1787         f.src = type;
1788         ast_log(LOG_NOTICE, "%s: vpb_read: should never be called!\n", p->dev);
1789         ast_verbose("%s: vpb_read: should never be called!\n", p->dev);
1790
1791         return &f;
1792 }
1793
1794 static inline int ast2vpbformat(int ast_format)
1795 {
1796         switch(ast_format) {
1797                 case AST_FORMAT_ALAW:
1798                         return VPB_ALAW;
1799                 case AST_FORMAT_SLINEAR:
1800                         return VPB_LINEAR;
1801                 case AST_FORMAT_ULAW:
1802                         return VPB_MULAW;
1803                 case AST_FORMAT_ADPCM:
1804                         return VPB_OKIADPCM;
1805                 default:
1806                         return -1;
1807         }
1808 }
1809
1810 static inline char * ast2vpbformatname(int ast_format)
1811 {
1812         switch(ast_format) {
1813                 case AST_FORMAT_ALAW:
1814                         return "AST_FORMAT_ALAW:VPB_ALAW";
1815                 case AST_FORMAT_SLINEAR:
1816                         return "AST_FORMAT_SLINEAR:VPB_LINEAR";
1817                 case AST_FORMAT_ULAW:
1818                         return "AST_FORMAT_ULAW:VPB_MULAW";
1819                 case AST_FORMAT_ADPCM:
1820                         return "AST_FORMAT_ADPCM:VPB_OKIADPCM";
1821                 default:
1822                         return "UNKN:UNKN";
1823         }
1824 }
1825
1826 static inline int astformatbits(int ast_format)
1827 {
1828         switch(ast_format) {
1829                 case AST_FORMAT_ALAW:
1830                 case AST_FORMAT_ULAW:
1831                         return 8;
1832                 case AST_FORMAT_SLINEAR:
1833                         return 16;
1834                 case AST_FORMAT_ADPCM:
1835                         return 4;
1836                 default:
1837                         return 8;
1838         }
1839 }
1840
1841 int a_gain_vector(float g, short *v, int n)
1842 {
1843         int i;
1844         float tmp;
1845         for ( i = 0; i<n; i++) {
1846                 tmp = g*v[i];
1847                 if (tmp > 32767.0)
1848                         tmp = 32767.0;
1849                 if (tmp < -32768.0)
1850                         tmp = -32768.0;
1851                 v[i] = (short)tmp;
1852         }
1853         return(i);
1854 }
1855
1856 /* Writes a frame of voice data to a VPB channel */
1857 static int vpb_write(struct ast_channel *ast, struct ast_frame *frame)
1858 {
1859         struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt;
1860         int res = 0, fmt = 0;
1861         struct timeval play_buf_time_start,play_buf_time_finish;
1862 /*      ast_mutex_lock(&p->lock); */
1863         if(option_verbose>5)
1864                 ast_verbose("%s: vpb_write: Writing to channel\n", p->dev);
1865
1866         if (frame->frametype != AST_FRAME_VOICE) {
1867                 if(option_verbose>3)
1868                         ast_verbose("%s: vpb_write: Don't know how to handle from type %d\n", ast->name, frame->frametype);
1869 /*              ast_mutex_unlock(&p->lock); */
1870                 return 0;
1871         } else if (ast->_state != AST_STATE_UP) {
1872                 if(option_verbose>3)
1873                         ast_verbose("%s: vpb_write: Attempt to Write frame type[%d]subclass[%d] on not up chan\n",ast->name, frame->frametype, frame->subclass);
1874                 p->lastoutput = -1;
1875 /*              ast_mutex_unlock(&p->lock); */
1876                 return 0;
1877         }
1878 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame type..\n", p->dev); */
1879
1880         fmt = ast2vpbformat(frame->subclass);
1881         if (fmt < 0) {
1882                 ast_log(LOG_WARNING, "%s: vpb_write: Cannot handle frames of %d format!\n",ast->name, frame->subclass);
1883                 return -1;
1884         }
1885 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame format..\n", p->dev); */
1886
1887         ast_mutex_lock(&p->play_lock);
1888
1889 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Got play lock..\n", p->dev); */
1890
1891         /* Check if we have set up the play_buf */
1892         if (p->lastoutput == -1) {
1893                 vpb_play_buf_start(p->handle, fmt);
1894                 if(option_verbose>1) {
1895                         ast_verbose("%s: vpb_write: Starting play mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(frame->subclass));
1896                 }
1897         } else if (p->lastoutput != fmt) {
1898                 vpb_play_buf_finish(p->handle);
1899                 vpb_play_buf_start(p->handle, fmt);
1900                 if(option_verbose>1)
1901                         ast_verbose("%s: vpb_write: Changed play format (%d=>%d)\n",p->dev,p->lastoutput,fmt);
1902         }
1903         p->lastoutput = fmt;
1904
1905
1906
1907         /* Apply extra gain ! */
1908         if( p->txswgain > MAX_VPB_GAIN )
1909                 a_gain_vector(p->txswgain - MAX_VPB_GAIN , (short*)frame->data, frame->datalen/sizeof(short));
1910
1911 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Applied gain..\n", p->dev); */
1912
1913 /*      gettimeofday(&tv, NULL); */
1914 /*      return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000); */
1915
1916         if ((p->read_state == 1)&&(p->play_buf_time<5)){
1917         gettimeofday(&play_buf_time_start,NULL);
1918         res = vpb_play_buf_sync(p->handle, (char*)frame->data, frame->datalen);
1919         if( (res == VPB_OK) && (option_verbose > 5) ) {
1920                 short * data = (short*)frame->data;
1921                 ast_verbose("%s: vpb_write: Wrote chan (codec=%d) %d %d\n", p->dev, fmt, data[0],data[1]);
1922         }
1923         gettimeofday(&play_buf_time_finish,NULL);
1924         if (play_buf_time_finish.tv_sec == play_buf_time_start.tv_sec){
1925                 p->play_buf_time=(int)((play_buf_time_finish.tv_usec-play_buf_time_start.tv_usec)/1000);
1926 /*              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); */
1927         }
1928         else {
1929                 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);
1930         }
1931 /*      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); */
1932         }
1933         else {
1934                 p->chuck_count++;
1935                 ast_log(LOG_DEBUG, "%s: vpb_write: Tossed data away, tooooo much data!![%d]\n", p->dev,p->chuck_count);
1936                 p->play_buf_time=0;
1937         }
1938
1939         ast_mutex_unlock(&p->play_lock);
1940 /*      ast_mutex_unlock(&p->lock); */
1941         if(option_verbose>5)
1942                 ast_verbose("%s: vpb_write: Done Writing to channel\n", p->dev);
1943         return 0;
1944 }
1945
1946 /* Read monitor thread function. */
1947 static void *do_chanreads(void *pvt)
1948 {
1949         struct vpb_pvt *p = (struct vpb_pvt *)pvt;
1950         struct ast_frame *fr = &p->fr;
1951         char *readbuf = ((char *)p->buf) + AST_FRIENDLY_OFFSET;
1952         int bridgerec = 0;
1953         int afmt, readlen, res, fmt, trycnt=0;
1954         int ignore_dtmf;
1955         char * getdtmf_var = NULL;
1956
1957         fr->frametype = AST_FRAME_VOICE;
1958         fr->src = type;
1959         fr->mallocd = 0;
1960         fr->delivery.tv_sec = 0;
1961         fr->delivery.tv_usec = 0;
1962         fr->samples = VPB_SAMPLES;
1963         fr->offset = AST_FRIENDLY_OFFSET;
1964         memset(p->buf, 0, sizeof p->buf);
1965
1966         if (option_verbose > 2) {
1967                 ast_verbose("%s: chanreads: starting thread\n", p->dev);
1968         }
1969         ast_mutex_lock(&p->record_lock);
1970
1971         p->stopreads = 0;
1972         p->read_state = 1;
1973         while (!p->stopreads && p->owner) {
1974
1975                 if (option_verbose > 4)
1976                         ast_verbose("%s: chanreads: Starting cycle ...\n", p->dev);
1977                 if (option_verbose > 4)
1978                         ast_verbose("%s: chanreads: Checking bridge \n", p->dev);
1979                 if (p->bridge) {
1980                         if (p->bridge->c0 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_0))
1981                                 bridgerec = 1;
1982                         else if (p->bridge->c1 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_1))
1983                                 bridgerec = 1;
1984                         else
1985                                 bridgerec = 0;
1986                 } else {
1987                         if (option_verbose > 4)
1988                                 ast_verbose("%s: chanreads: No native bridge.\n", p->dev);
1989                         if (p->owner->_bridge){
1990                                 if (option_verbose > 4){
1991                                         ast_verbose("%s: chanreads: Got Asterisk bridge with [%s].\n", p->dev,p->owner->_bridge->name);
1992                                 }
1993                                 bridgerec = 1;
1994                         }
1995                         else {
1996                                 bridgerec = 0;
1997                         }
1998                 }
1999
2000 /*              if ( (p->owner->_state != AST_STATE_UP) || !bridgerec) { */
2001                 if ( (p->owner->_state != AST_STATE_UP) ) {
2002                         if (option_verbose > 4) {
2003                                 if (p->owner->_state != AST_STATE_UP)
2004                                         ast_verbose("%s: chanreads: Im not up[%d]\n", p->dev,p->owner->_state);
2005                                 else
2006                                         ast_verbose("%s: chanreads: No bridgerec[%d]\n", p->dev,bridgerec);
2007                         }
2008                         vpb_sleep(10);
2009                         continue;
2010                 }
2011
2012                 /* Voicetronix DTMF detection can be triggered off ordinary speech
2013                  * This leads to annoying beeps during the conversation
2014                  * Avoid this problem by just setting VPB_GETDTMF when you want to listen for DTMF
2015                  */
2016                 /* ignore_dtmf = 1; */
2017                 ignore_dtmf = 0; /* set this to 1 to turn this feature on */
2018                 getdtmf_var = pbx_builtin_getvar_helper(p->owner,"VPB_GETDTMF");
2019                 if( getdtmf_var && ( strcasecmp( getdtmf_var, "yes" ) == 0 ) )
2020                         ignore_dtmf = 0;
2021
2022                 if( ignore_dtmf != p->last_ignore_dtmf ) {
2023                         if(option_verbose>1)
2024                                 ast_verbose( VERBOSE_PREFIX_2 "%s:Now %s DTMF \n",
2025                                         p->dev, ignore_dtmf ? "ignoring" : "listening for");
2026                         vpb_set_event_mask(p->handle, ignore_dtmf ? VPB_EVENTS_NODTMF : VPB_EVENTS_ALL );
2027                 }
2028                 p->last_ignore_dtmf = ignore_dtmf;
2029
2030                 /* Play DTMF digits here to avoid problem you get if playing a digit during
2031                  * a record operation
2032                  */
2033                 if (option_verbose > 5) {
2034                         ast_verbose("%s: chanreads: Checking dtmf's \n", p->dev);
2035                 }
2036                 ast_mutex_lock(&p->play_dtmf_lock);
2037                 if( p->play_dtmf[0] ) {
2038                         /* Try to ignore DTMF event we get after playing digit */
2039                         /* This DTMF is played by asterisk and leads to an annoying trailing beep on CISCO phones */
2040                         if( !ignore_dtmf)
2041                                 vpb_set_event_mask(p->handle, VPB_EVENTS_NODTMF );
2042 /*                      if (strcmp(p->owner->type,"vpb")==0){ */
2043                         if (p->bridge == NULL){
2044                                 vpb_dial_sync(p->handle,p->play_dtmf);
2045                                 if(option_verbose>1)
2046                                         ast_verbose( VERBOSE_PREFIX_2 "%s: chanreads: Played DTMF %s\n",p->dev,p->play_dtmf);
2047                         }
2048                         else {
2049                                 if (option_verbose > 1)
2050                                         ast_verbose(VERBOSE_PREFIX_2 "%s: chanreads: Not playing DTMF frame on native bridge\n", p->dev);
2051                         }
2052                         p->play_dtmf[0] = '\0';
2053                         ast_mutex_unlock(&p->play_dtmf_lock);
2054                         vpb_sleep(700); /* Long enough to miss echo and DTMF event */
2055                         if( !ignore_dtmf)
2056                                 vpb_set_event_mask(p->handle, VPB_EVENTS_ALL );
2057                         continue;
2058                 }
2059                 ast_mutex_unlock(&p->play_dtmf_lock);
2060
2061 /*              afmt = (p->owner) ? p->owner->pvt->rawreadformat : AST_FORMAT_SLINEAR; */
2062                 if (p->owner){
2063                         afmt = p->owner->pvt->rawreadformat;
2064 /*                      ast_log(LOG_DEBUG,"%s: Record using owner format [%s]\n", p->dev, ast2vpbformatname(afmt)); */
2065                 }
2066                 else {
2067                         afmt = AST_FORMAT_SLINEAR;
2068 /*                      ast_log(LOG_DEBUG,"%s: Record using default format [%s]\n", p->dev, ast2vpbformatname(afmt)); */
2069                 }
2070                 fmt = ast2vpbformat(afmt);
2071                 if (fmt < 0) {
2072                         ast_log(LOG_WARNING,"%s: Record failure (unsupported format %d)\n", p->dev, afmt);
2073                         return NULL;
2074                 }
2075                 readlen = VPB_SAMPLES * astformatbits(afmt) / 8;
2076
2077                 if (p->lastinput == -1) {
2078                         vpb_record_buf_start(p->handle, fmt);
2079                         vpb_reset_record_fifo_alarm(p->handle);
2080                         if(option_verbose>1)
2081                                 ast_verbose( VERBOSE_PREFIX_2 "%s: Starting record mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(afmt));
2082                 } else if (p->lastinput != fmt) {
2083                         vpb_record_buf_finish(p->handle);
2084                         vpb_record_buf_start(p->handle, fmt);
2085                         if(option_verbose>1)
2086                                 ast_verbose( VERBOSE_PREFIX_2 "%s: Changed record format (%d=>%d)\n",p->dev,p->lastinput,fmt);
2087                 }
2088                 p->lastinput = fmt;
2089
2090                 /* Read only if up and not bridged, or a bridge for which we can read. */
2091                 if (option_verbose > 5) {
2092                         ast_verbose("%s: chanreads: getting buffer!\n", p->dev);
2093                 }
2094                 if( (res = vpb_record_buf_sync(p->handle, readbuf, readlen) ) == VPB_OK ) {
2095                         if (option_verbose > 5) {
2096                                 ast_verbose("%s: chanreads: got buffer!\n", p->dev);
2097                         }
2098                         /* Apply extra gain ! */
2099                         if( p->rxswgain > MAX_VPB_GAIN )
2100                                 a_gain_vector(p->rxswgain - MAX_VPB_GAIN , (short*)readbuf, readlen/sizeof(short));
2101                         if (option_verbose > 5) {
2102                                 ast_verbose("%s: chanreads: applied gain\n", p->dev);
2103                         }
2104
2105                         fr->subclass = afmt;
2106                         fr->data = readbuf;
2107                         fr->datalen = readlen;
2108
2109                         /* Using trylock here to prevent deadlock when channel is hungup
2110                          * (ast_hangup() immediately gets lock)
2111                          */
2112                         if (p->owner && !p->stopreads ) {
2113                                 if (option_verbose > 5) {
2114                                         ast_verbose("%s: chanreads: queueing buffer on read frame q (state[%d])\n", p->dev,p->owner->_state);
2115                                 }
2116                                 do {
2117                                         res = ast_mutex_trylock(&p->owner->lock);
2118                                         trycnt++;
2119                                 } while((res !=0)&&(trycnt<300));
2120                                 if (res==0)  {
2121                                         ast_queue_frame(p->owner, fr);
2122                                         ast_mutex_unlock(&p->owner->lock);
2123                                 } else {
2124                                         if (option_verbose > 4)
2125                                                 ast_verbose("%s: chanreads: Couldnt get lock after %d tries!\n", p->dev,trycnt);
2126                                 }
2127                                 trycnt=0;
2128
2129 /*
2130                                 res = ast_mutex_trylock(&p->owner->lock);
2131                                 if (res==0)  {
2132                                         ast_queue_frame(p->owner, fr);
2133                                         ast_mutex_unlock(&p->owner->lock);
2134                                 } else {
2135                                         if (res == EINVAL )
2136                                                 if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res);
2137                                         else if (res == EBUSY )
2138                                                 if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res);
2139                                         while(res !=0){
2140                                         res = ast_mutex_trylock(&p->owner->lock);
2141                                         }
2142                                         if (res==0)  {
2143                                                 ast_queue_frame(p->owner, fr);
2144                                                 ast_mutex_unlock(&p->owner->lock);
2145                                         }
2146                                         else {
2147                                                 if (res == EINVAL )
2148                                                         if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res);
2149                                                 else if (res == EBUSY )
2150                                                         if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res);
2151                                                 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);
2152                                         }
2153                                 }
2154 */
2155                                 if (option_verbose > 6) {
2156                                         short * data = (short*)readbuf;
2157                                         ast_verbose("%s: Read channel (codec=%d) %d %d\n", p->dev, fmt, data[0], data[1] );
2158                                 }
2159                         }
2160                         else {
2161                                 if (option_verbose > 4) {
2162                                         ast_verbose("%s: p->stopreads[%d] p->owner[%p]\n", p->dev, p->stopreads,(void *)p->owner);
2163                                 }
2164                         }
2165                 } else {
2166                         ast_log(LOG_WARNING,"%s: Record failure (%s)\n", p->dev, vpb_strerror(res));
2167                         vpb_record_buf_finish(p->handle);
2168                         vpb_record_buf_start(p->handle, fmt);
2169                 }
2170                 if (option_verbose > 4)
2171                         ast_verbose("%s: chanreads: Finished cycle...\n", p->dev);
2172         }
2173         p->read_state=0;
2174
2175         /* When stopreads seen, go away! */
2176         vpb_record_buf_finish(p->handle);
2177         p->read_state=0;
2178         ast_mutex_unlock(&p->record_lock);
2179
2180         if (option_verbose > 1)
2181                 ast_verbose(VERBOSE_PREFIX_2 "%s: Ending record mode (%d/%s)\n",
2182                          p->dev, p->stopreads, p->owner? "yes" : "no");
2183         return NULL;
2184 }
2185
2186 static struct ast_channel *vpb_new(struct vpb_pvt *me, int state, char *context)
2187 {
2188         struct ast_channel *tmp;
2189
2190         if (me->owner) {
2191             ast_log(LOG_WARNING, "Called vpb_new on owned channel (%s) ?!\n", me->dev);
2192             return NULL;
2193         }
2194         if (option_verbose > 3)
2195                 ast_verbose("%s: New call for context [%s]\n",me->dev,context);
2196
2197         tmp = ast_channel_alloc(1);
2198         if (tmp) {
2199                 strncpy(tmp->name, me->dev, sizeof(tmp->name) - 1);
2200                 tmp->type = type;
2201
2202                 /* Linear is the preferred format. Although Voicetronix supports other formats
2203                  * they are all converted to/from linear in the vpb code. Best for us to use
2204                  * linear since we can then adjust volume in this modules.
2205                  */
2206                 tmp->nativeformats = prefformat;
2207                 tmp->pvt->rawreadformat = AST_FORMAT_SLINEAR;
2208                 tmp->pvt->rawwriteformat =  AST_FORMAT_SLINEAR;
2209                 ast_setstate(tmp, state);
2210                 if (state == AST_STATE_RING)
2211                         tmp->rings = 1;
2212                 tmp->pvt->pvt = me;
2213                 /* set call backs */
2214                 tmp->pvt->send_digit = vpb_digit;
2215                 tmp->pvt->call = vpb_call;
2216                 tmp->pvt->hangup = vpb_hangup;
2217                 tmp->pvt->answer = vpb_answer;
2218                 tmp->pvt->read = vpb_read;
2219                 tmp->pvt->write = vpb_write;
2220                 tmp->pvt->bridge = vpb_bridge;
2221                 if (use_ast_ind == 0)
2222                         tmp->pvt->indicate = vpb_indicate;
2223                 tmp->pvt->fixup = vpb_fixup;
2224
2225                 strncpy(tmp->context, context, sizeof(tmp->context)-1);
2226                 if (strlen(me->ext))
2227                         strncpy(tmp->exten, me->ext, sizeof(tmp->exten)-1);
2228                 else
2229                         strncpy(tmp->exten, "s",  sizeof(tmp->exten) - 1);
2230                 if (strlen(me->language))
2231                         strncpy(tmp->language, me->language, sizeof(tmp->language)-1);
2232
2233                 me->owner = tmp;
2234
2235                 me->bridge = NULL;
2236                 me->lastoutput = -1;
2237                 me->lastinput = -1;
2238                 me->last_ignore_dtmf = 1;
2239                 me->readthread = 0;
2240                 me->play_dtmf[0] = '\0';
2241
2242                 me->lastgrunt  = get_time_in_ms(); /* Assume at least one grunt tone seen now. */
2243
2244                 ast_mutex_lock(&usecnt_lock);
2245                 usecnt++;
2246                 ast_mutex_unlock(&usecnt_lock);
2247                 ast_update_use_count();
2248                 if (state != AST_STATE_DOWN) {
2249                         if (ast_pbx_start(tmp)) {
2250                                 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
2251                                 ast_hangup(tmp);
2252                         }
2253                 }
2254         } else {
2255                 ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
2256         }
2257         return tmp;
2258 }
2259
2260 static struct ast_channel *vpb_request(const char *type, int format, void *data, int *cause)
2261 {
2262         int oldformat;
2263         struct vpb_pvt *p;
2264         struct ast_channel *tmp = NULL;
2265         char *name = strdup(data ? (char *)data : "");
2266         char *s, *sepstr;
2267         int group=-1;
2268
2269         oldformat = format;
2270         format &= prefformat;
2271         if (!format) {
2272                 ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat);
2273                 return NULL;
2274         }
2275
2276         sepstr = name;
2277         s = strsep(&sepstr, "/"); /* Handle / issues */
2278         if (!s)
2279                 s = "";
2280         /* Check if we are looking for a group */
2281         if (toupper(name[0]) == 'G' || toupper(name[0])=='R') {
2282                 group=atoi(name+1);
2283         }
2284         /* Search for an unowned channel */
2285         ast_mutex_lock(&iflock); {
2286                 p = iflist;
2287                 while(p) {
2288                         if (group == -1){
2289                                 if (strncmp(s, p->dev + 4, sizeof p->dev) == 0) {
2290                                         if (!p->owner) {
2291                                                 tmp = vpb_new(p, AST_STATE_DOWN, p->context);
2292                                                 break;
2293                                         }
2294                                 }
2295                         }
2296                         else {
2297                                 if ((p->group == group) && (!p->owner)) {
2298                                         tmp = vpb_new(p, AST_STATE_DOWN, p->context);
2299                                         break;
2300                                 }
2301                         }
2302                         p = p->next;
2303                 }
2304         } ast_mutex_unlock(&iflock);
2305
2306
2307         if (option_verbose > 1)
2308                 ast_verbose(VERBOSE_PREFIX_2 " %s requested, got: [%s]\n",
2309                 name, tmp ? tmp->name : "None");
2310
2311         free(name);
2312
2313         restart_monitor();
2314         return tmp;
2315 }
2316
2317 static float parse_gain_value(char *gain_type, char *value)
2318 {
2319         float gain;
2320
2321         /* try to scan number */
2322         if (sscanf(value, "%f", &gain) != 1)
2323         {
2324                 ast_log(LOG_ERROR, "Invalid %s value '%s' in '%s' config\n", value, gain_type, config);
2325                 return DEFAULT_GAIN;
2326         }
2327
2328
2329         /* percentage? */
2330         /*if (value[strlen(value) - 1] == '%') */
2331         /*      return gain / (float)100; */
2332
2333         return gain;
2334 }
2335
2336 int load_module()
2337 {
2338         struct ast_config *cfg;
2339         struct ast_variable *v;
2340         struct vpb_pvt *tmp;
2341         int board = 0, group = 0;
2342         int mode = MODE_IMMEDIATE;
2343         float txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN;
2344         float txswgain = 0, rxswgain = 0;
2345         int first_channel = 1;
2346         int echo_cancel = DEFAULT_ECHO_CANCEL;
2347         int error = 0; /* Error flag */
2348         int bal1 = -1; /* Special value - means do not set */
2349         int bal2 = -1;
2350         int bal3 = -1;
2351         char * callerid = NULL;
2352
2353         cfg = ast_load(config);
2354
2355         /* We *must* have a config file otherwise stop immediately */
2356         if (!cfg) {
2357                 ast_log(LOG_ERROR, "Unable to load config %s\n", config);
2358                 return -1;
2359         }
2360
2361         vpb_seterrormode(VPB_ERROR_CODE);
2362
2363         ast_mutex_lock(&iflock); {
2364                 v = ast_variable_browse(cfg, "general");
2365                 while (v){
2366                         if (strcasecmp(v->name, "cards") == 0) {
2367                                 ast_log(LOG_NOTICE,"VPB Driver configured to use [%d] cards\n",atoi(v->value));
2368                         }
2369                         else if (strcasecmp(v->name, "indication") == 0) {
2370                                 use_ast_ind = 1;
2371                                 ast_log(LOG_NOTICE,"VPB driver using Asterisk Indication functions!\n");
2372                         }
2373                         v = v->next;
2374                 }
2375
2376                 v = ast_variable_browse(cfg, "interfaces");
2377                 while(v) {
2378                         /* Create the interface list */
2379                         if (strcasecmp(v->name, "board") == 0) {
2380                                 board = atoi(v->value);
2381                         } else  if (strcasecmp(v->name, "group") == 0){
2382                                 group = atoi(v->value);
2383                         } else  if (strcasecmp(v->name, "useloopdrop") == 0){
2384                                 UseLoopDrop = atoi(v->value);
2385                         } else  if (strcasecmp(v->name, "usenativebridge") == 0){
2386                                 UseNativeBridge = atoi(v->value);
2387                         } else if (strcasecmp(v->name, "channel") == 0) {
2388                                 int channel = atoi(v->value);
2389                                 tmp = mkif(board, channel, mode, txgain, rxgain, txswgain, rxswgain, bal1, bal2, bal3, callerid, echo_cancel,group);
2390                                 if (tmp) {
2391                                         if(first_channel) {
2392                                                 mkbrd( tmp->vpb_model, echo_cancel );
2393                                                 first_channel = 0;
2394                                         }
2395                                         tmp->next = iflist;
2396                                         iflist = tmp;
2397                                 } else {
2398                                         ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value);
2399                                         error = -1;
2400                                         goto done;
2401                                 }
2402                         } else if (strcasecmp(v->name, "language") == 0) {
2403                                 strncpy(language, v->value, sizeof(language)-1);
2404                         } else if (strcasecmp(v->name, "callerid") == 0) {
2405                                 callerid = strdup(v->value);
2406                         } else if (strcasecmp(v->name, "mode") == 0) {
2407                                 if (strncasecmp(v->value, "di", 2) == 0)
2408                                         mode = MODE_DIALTONE;
2409                                 else if (strncasecmp(v->value, "im", 2) == 0)
2410                                         mode = MODE_IMMEDIATE;
2411                                 else if (strncasecmp(v->value, "fx", 2) == 0)
2412                                         mode = MODE_FXO;
2413                                 else
2414                                         ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value);
2415                         } else if (!strcasecmp(v->name, "context")) {
2416                                 strncpy(context, v->value, sizeof(context)-1);
2417                         } else if (!strcasecmp(v->name, "echocancel")) {
2418                                 if (!strcasecmp(v->value, "off"))
2419                                         echo_cancel = 0;
2420                         } else if (strcasecmp(v->name, "txgain") == 0) {
2421                                 txswgain = parse_gain_value(v->name, v->value);
2422                         } else if (strcasecmp(v->name, "rxgain") == 0) {
2423                                 rxswgain = parse_gain_value(v->name, v->value);
2424                         } else if (strcasecmp(v->name, "txhwgain") == 0) {
2425                                 txgain = parse_gain_value(v->name, v->value);
2426                         } else if (strcasecmp(v->name, "rxhwgain") == 0) {
2427                                 rxgain = parse_gain_value(v->name, v->value);
2428                         } else if (strcasecmp(v->name, "bal1") == 0) {
2429                                 bal1 = strtol(v->value, NULL, 16);
2430                                 if(bal1<0 || bal1>255) {
2431                                         ast_log(LOG_WARNING, "Bad bal1 value: %d\n", bal1);
2432                                         bal1 = -1;
2433                                 }
2434                         } else if (strcasecmp(v->name, "bal2") == 0) {
2435                                 bal2 = strtol(v->value, NULL, 16);
2436                                 if(bal2<0 || bal2>255) {
2437                                         ast_log(LOG_WARNING, "Bad bal2 value: %d\n", bal2);
2438                                         bal2 = -1;
2439                                 }
2440                         } else if (strcasecmp(v->name, "bal3") == 0) {
2441                                 bal3 = strtol(v->value, NULL, 16);
2442                                 if(bal3<0 || bal3>255) {
2443                                         ast_log(LOG_WARNING, "Bad bal3 value: %d\n", bal3);
2444                                         bal3 = -1;
2445                                 }
2446                         } else if (strcasecmp(v->name, "grunttimeout") == 0) {
2447                                 gruntdetect_timeout = 1000*atoi(v->value);
2448                         }
2449                         v = v->next;
2450                 }
2451
2452                 if (gruntdetect_timeout < 1000)
2453                         gruntdetect_timeout = 1000;
2454
2455                 done: (void)0;
2456         } ast_mutex_unlock(&iflock);
2457
2458         ast_destroy(cfg);
2459
2460         if (!error && ast_channel_register(type, tdesc, prefformat, vpb_request) != 0) {
2461                 ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
2462                 error = -1;
2463         }
2464
2465
2466         if (error)
2467                 unload_module();
2468         else
2469                 restart_monitor(); /* And start the monitor for the first time */
2470
2471         return error;
2472 }
2473
2474
2475 int unload_module()
2476 {
2477         struct vpb_pvt *p;
2478         /* First, take us out of the channel loop */
2479         ast_channel_unregister(type);
2480
2481         ast_mutex_lock(&iflock); {
2482                 /* Hangup all interfaces if they have an owner */
2483                 p = iflist;
2484                 while(p) {
2485                         if (p->owner)
2486                                 ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
2487                         p = p->next;
2488                 }
2489                 iflist = NULL;
2490         } ast_mutex_unlock(&iflock);
2491
2492         ast_mutex_lock(&monlock); {
2493                 if (mthreadactive > -1) {
2494                         pthread_cancel(monitor_thread);
2495                         pthread_join(monitor_thread, NULL);
2496                 }
2497                 mthreadactive = -2;
2498         } ast_mutex_unlock(&monlock);
2499
2500         ast_mutex_lock(&iflock); {
2501                 /* Destroy all the interfaces and free their memory */
2502
2503                 while(iflist) {
2504                         p = iflist;
2505                         ast_mutex_destroy(&p->lock);
2506                         pthread_cancel(p->readthread);
2507                         ast_mutex_destroy(&p->owner_lock);
2508                         ast_mutex_destroy(&p->record_lock);
2509                         ast_mutex_destroy(&p->play_lock);
2510                         ast_mutex_destroy(&p->play_dtmf_lock);
2511                         p->readthread = 0;
2512
2513                         vpb_close(p->handle);
2514
2515                         iflist = iflist->next;
2516
2517                         free(p);
2518                 }
2519                 iflist = NULL;
2520         } ast_mutex_unlock(&iflock);
2521
2522         ast_mutex_lock(&bridge_lock); {
2523                 memset(bridges, 0, sizeof bridges);
2524         } ast_mutex_unlock(&bridge_lock);
2525         ast_mutex_destroy(&bridge_lock);
2526         for(int i = 0; i < max_bridges; i++ ) {
2527                 ast_mutex_destroy(&bridges[i].lock);
2528                 pthread_cond_destroy(&bridges[i].cond);
2529         }
2530         free(bridges);
2531
2532         return 0;
2533 }
2534
2535 int usecount()
2536 {
2537         int res;
2538         ast_mutex_lock(&usecnt_lock);
2539         res = usecnt;
2540         ast_mutex_unlock(&usecnt_lock);
2541         return res;
2542 }
2543
2544 char *description()
2545 {
2546         return desc;
2547 }
2548
2549 char *key()
2550 {
2551         return ASTERISK_GPL_KEY;
2552 }
2553
2554 /**/
2555 #if defined(__cplusplus) || defined(c_plusplus)
2556  }
2557 #endif
2558 /**/