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 - 2005, 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/config.h>
  29 #include <asterisk/logger.h>
  30 #include <asterisk/module.h>
  31 #include <asterisk/pbx.h>
  32 #include <asterisk/options.h>
  33 #include <asterisk/callerid.h>
  34 #include <asterisk/dsp.h>
  35 #include <asterisk/features.h>
  36
  37 }
  38
  39 #include <sys/socket.h>
  40 #include <sys/time.h>
  41 #include <errno.h>
  42 #include <unistd.h>
  43 #include <stdlib.h>
  44 #include <arpa/inet.h>
  45 #include <fcntl.h>
  46 #include <sys/ioctl.h>
  47 #include <ctype.h>
  48
  49 #include <vpbapi.h>
  50 #include <assert.h>
  51
  52 #ifdef pthread_create
  53 #undef pthread_create
  54 #endif
  55
  56 #define DEFAULT_GAIN 0
  57 #define DEFAULT_ECHO_CANCEL 1
  58
  59 #define VPB_SAMPLES 160
  60 #define VPB_MAX_BUF VPB_SAMPLES*4 + AST_FRIENDLY_OFFSET
  61
  62 #define VPB_NULL_EVENT 200
  63
  64 #define VPB_WAIT_TIMEOUT 4000
  65
  66 #define MAX_VPB_GAIN 12.0
  67 #define MIN_VPB_GAIN -12.0
  68
  69 #define DTMF_CALLERID
  70 #define DTMF_CID_START 'D'
  71 #define DTMF_CID_STOP 'C'
  72
  73 /**/
  74 #if defined(__cplusplus) || defined(c_plusplus)
  75  extern "C" {
  76 #endif
  77 /**/
  78
  79 static const char desc[] = "VoiceTronix V6PCI/V12PCI/V4PCI  API Support";
  80 static const char type[] = "vpb";
  81 static const char tdesc[] = "Standard VoiceTronix API Driver";
  82 static const char config[] = "vpb.conf";
  83
  84 /* Default context for dialtone mode */
  85 static char context[AST_MAX_EXTENSION] = "default";
  86
  87 /* Default language */
  88 static char language[MAX_LANGUAGE] = "";
  89 static int usecnt =0;
  90
  91 static int gruntdetect_timeout = 3600000; /* Grunt detect timeout is 1hr. */
  92
  93 static const int prefformat = AST_FORMAT_SLINEAR;
  94
  95 AST_MUTEX_DEFINE_STATIC(usecnt_lock);
  96
  97 /* Protect the interface list (of vpb_pvt's) */
  98 AST_MUTEX_DEFINE_STATIC(iflock);
  99
 100 /* Protect the monitoring thread, so only one process can kill or start it, and not
 101    when it's doing something critical. */
 102 AST_MUTEX_DEFINE_STATIC(monlock);
 103
 104 /* This is the thread for the monitor which checks for input on the channels
 105    which are not currently in use.  */
 106 static pthread_t monitor_thread;
 107
 108 static int mthreadactive = -1; /* Flag for monitoring monitorthread.*/
 109
 110
 111 static int restart_monitor(void);
 112
 113 /* The private structures of the VPB channels are
 114    linked for selecting outgoing channels */
 115
 116 #define MODE_DIALTONE   1
 117 #define MODE_IMMEDIATE  2
 118 #define MODE_FXO        3
 119
 120 /* Pick a country or add your own! */
 121 /* These are the tones that are played to the user */
 122 #define TONES_AU
 123 /* #define TONES_USA */
 124
 125 #ifdef TONES_AU
 126 static VPB_TONE Dialtone     = {440,    440,    440,    -10,    -10,    -10,    5000,   0   };
 127 static VPB_TONE Busytone     = {470,    0,      0,      -10,    -100,   -100,   5000,   0 };
 128 static VPB_TONE Ringbacktone = {400,    50,     440,    -10,    -10,    -10,    1400,   800 };
 129 #endif
 130 #ifdef TONES_USA
 131 static VPB_TONE Dialtone     = {350, 440,   0, -16,   -16, -100, 10000,    0};
 132 static VPB_TONE Busytone     = {480, 620,   0, -10,   -10, -100,   500,  500};
 133 static VPB_TONE Ringbacktone = {440, 480,   0, -20,   -20, -100,  2000, 4000};
 134 #endif
 135
 136 /* grunt tone defn's */
 137 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 } } };
 138 static VPB_DETECT toned_ungrunt = { 2, VPB_GRUNT, 1, 2000, 1, 0, 0, -40, 0, 0, 30, 40, { { 0, 0, 0, 0 } } };
 139
 140 /* Use loop drop detection */
 141 static int UseLoopDrop=1;
 142
 143 /* To use or not to use Native bridging */
 144 static int UseNativeBridge=1;
 145
 146 /* Use Asterisk Indication or VPB */
 147 static int use_ast_ind=0;
 148
 149 /* Use Asterisk DTMF detection or VPB */
 150 static int use_ast_dtmfdet=0;
 151
 152 static int relaxdtmf=0;
 153
 154 /* Use Asterisk DTMF play back or VPB */
 155 static int use_ast_dtmf=0;
 156
 157 /* Break for DTMF on native bridge ? */
 158 static int break_for_dtmf=1;
 159
 160 /* Set EC suppression threshold */
 161 static int ec_supp_threshold=-1;
 162
 163 /* Inter Digit Delay for collecting DTMF's */
 164 static int dtmf_idd = 3000;
 165
 166 #define TIMER_PERIOD_RINGBACK 2000
 167 #define TIMER_PERIOD_BUSY 700
 168 #define TIMER_PERIOD_RING 4000
 169
 170 #define VPB_EVENTS_ALL (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 171                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 172                         |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
 173 #define VPB_EVENTS_NODROP (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 174                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 175                         |VPB_MRING_OFF|VPB_MSTATION_FLASH)
 176 #define VPB_EVENTS_NODTMF (VPB_MRING|VPB_MDIGIT|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 177                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 178                         |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH)
 179 #define VPB_EVENTS_STAT (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \
 180                         |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
 181                         |VPB_MRING_OFF|VPB_MSTATION_FLASH)
 182
 183
 184 /* Dialing parameters for Australia */
 185 /* #define DIAL_WITH_CALL_PROGRESS */
 186 VPB_TONE_MAP DialToneMap[] = {  { VPB_BUSY_AUST, VPB_CALL_DISCONNECT, 0 },
 187                                 { VPB_DIAL, VPB_CALL_DIALTONE, 0 },
 188                                 { VPB_RINGBACK_308, VPB_CALL_RINGBACK, 0 },
 189                                 { VPB_BUSY_AUST, VPB_CALL_BUSY, 0 },
 190                                 { VPB_GRUNT, VPB_CALL_GRUNT, 0 },
 191                                 { 0, 0, 1 } };
 192 #define VPB_DIALTONE_WAIT 2000 /* Wait up to 2s for a dialtone */
 193 #define VPB_RINGWAIT 4000 /* Wait up to 4s for ring tone after dialing */
 194 #define VPB_CONNECTED_WAIT 4000 /* If no ring tone detected for 4s then consider call connected */
 195 #define TIMER_PERIOD_NOANSWER 120000 /* Let it ring for 120s before deciding theres noone there */
 196
 197 #define MAX_BRIDGES_V4PCI 2
 198 #define MAX_BRIDGES_V12PCI 128
 199
 200 /* port states */
 201 #define VPB_STATE_ONHOOK        0
 202 #define VPB_STATE_OFFHOOK       1
 203 #define VPB_STATE_DIALLING      2
 204 #define VPB_STATE_JOINED        3
 205 #define VPB_STATE_GETDTMF       4
 206 #define VPB_STATE_PLAYDIAL      5
 207 #define VPB_STATE_PLAYBUSY      6
 208 #define VPB_STATE_PLAYRING      7
 209
 210 #define VPB_GOT_RXHWG           1
 211 #define VPB_GOT_TXHWG           2
 212 #define VPB_GOT_RXSWG           4
 213 #define VPB_GOT_TXSWG           8
 214
 215 typedef struct  {
 216         int inuse;
 217         struct ast_channel *c0, *c1, **rc;
 218         struct ast_frame **fo;
 219         int flags;
 220         ast_mutex_t lock;
 221         pthread_cond_t cond;
 222         int endbridge;
 223 } vpb_bridge_t;
 224
 225 static vpb_bridge_t * bridges;
 226 static int max_bridges = MAX_BRIDGES_V4PCI;
 227
 228 AST_MUTEX_DEFINE_STATIC(bridge_lock);
 229
 230 typedef enum {
 231         vpb_model_unknown = 0,
 232         vpb_model_v4pci,
 233         vpb_model_v12pci
 234 } vpb_model_t;
 235
 236 static struct vpb_pvt {
 237
 238         ast_mutex_t owner_lock;                 /* Protect blocks that expect ownership to remain the same */
 239         struct ast_channel *owner;              /* Channel who owns us, possibly NULL */
 240
 241         int golock;                             /* Got owner lock ? */
 242
 243         int mode;                               /* fxo/imediate/dialtone*/
 244         int handle;                             /* Handle for vpb interface */
 245
 246         int state;                              /* used to keep port state (internal to driver) */
 247
 248         int group;                              /* Which group this port belongs to */
 249         ast_group_t callgroup;                  /* Call group */
 250         ast_group_t pickupgroup;                /* Pickup group */
 251
 252
 253         char dev[256];                          /* Device name, eg vpb/1-1 */
 254         vpb_model_t vpb_model;                  /* card model */
 255
 256         struct ast_frame f, fr;                 /* Asterisk frame interface */
 257         char buf[VPB_MAX_BUF];                  /* Static buffer for reading frames */
 258
 259         int dialtone;                           /* NOT USED */
 260         float txgain, rxgain;                   /* Hardware gain control */
 261         float txswgain, rxswgain;               /* Software gain control */
 262
 263         int wantdtmf;                           /* Waiting for DTMF. */
 264         char context[AST_MAX_EXTENSION];        /* The context for this channel */
 265
 266         char ext[AST_MAX_EXTENSION];            /* DTMF buffer for the ext[ens] */
 267         char language[MAX_LANGUAGE];            /* language being used */
 268         char callerid[AST_MAX_EXTENSION];       /* CallerId used for directly connected phone */
 269         int  callerid_type;                     /* Caller ID type: 0=>none 1=>vpb 2=>AstV23 3=>AstBell */
 270
 271         int dtmf_caller_pos;                    /* DTMF CallerID detection (Brazil)*/
 272
 273         int lastoutput;                         /* Holds the last Audio format output'ed */
 274         int lastinput;                          /* Holds the last Audio format input'ed */
 275         int last_ignore_dtmf;
 276
 277         void *busy_timer;                       /* Void pointer for busy vpb_timer */
 278         int busy_timer_id;                      /* unique timer ID for busy timer */
 279
 280         void *ringback_timer;                   /* Void pointer for ringback vpb_timer */
 281         int ringback_timer_id;                  /* unique timer ID for ringback timer */
 282
 283         void *ring_timer;                       /* Void pointer for ring vpb_timer */
 284         int ring_timer_id;                      /* unique timer ID for ring timer */
 285
 286         void *dtmfidd_timer;                    /* Void pointer for DTMF IDD vpb_timer */
 287         int dtmfidd_timer_id;                   /* unique timer ID for DTMF IDD timer */
 288
 289         struct ast_dsp *vad;                    /* AST  Voice Activation Detection dsp */
 290
 291         double lastgrunt;                       /* time stamp (secs since epoc) of last grunt event */
 292
 293         ast_mutex_t lock;                       /* This one just protects bridge ptr below */
 294         vpb_bridge_t *bridge;
 295
 296         int stopreads;                          /* Stop reading...*/
 297         int read_state;                         /* Read state */
 298         int chuck_count;                        /* a count of packets weve chucked away!*/
 299         pthread_t readthread;                   /* For monitoring read channel. One per owned channel. */
 300
 301         ast_mutex_t record_lock;                /* This one prevents reentering a record_buf block */
 302         ast_mutex_t play_lock;                  /* This one prevents reentering a play_buf block */
 303         int  play_buf_time;                     /* How long the last play_buf took */
 304
 305         ast_mutex_t play_dtmf_lock;
 306         char play_dtmf[16];
 307
 308         int faxhandled;                         /* has a fax tone been handled ? */
 309
 310         struct vpb_pvt *next;                   /* Next channel in list */
 311
 312 } *iflist = NULL;
 313
 314 static struct ast_channel *vpb_new(struct vpb_pvt *i, int state, char *context);
 315 static void *do_chanreads(void *pvt);
 316
 317 static struct ast_channel *vpb_request(const char *type, int format, void *data, int *cause);
 318 static int vpb_digit(struct ast_channel *ast, char digit);
 319 static int vpb_call(struct ast_channel *ast, char *dest, int timeout);
 320 static int vpb_hangup(struct ast_channel *ast);
 321 static int vpb_answer(struct ast_channel *ast);
 322 static struct ast_frame *vpb_read(struct ast_channel *ast);
 323 static int vpb_write(struct ast_channel *ast, struct ast_frame *frame);
 324 static int vpb_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc);
 325 static int vpb_indicate(struct ast_channel *ast, int condition);
 326 static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
 327
 328 static struct ast_channel_tech vpb_tech = {
 329         type: type,
 330         description: tdesc,
 331         capabilities: AST_FORMAT_SLINEAR,
 332         properties: NULL,
 333         requester: vpb_request,
 334         devicestate: NULL,
 335         send_digit: vpb_digit,
 336         call: vpb_call,
 337         hangup: vpb_hangup,
 338         answer: vpb_answer,
 339         read: vpb_read,
 340         write: vpb_write,
 341         send_text: NULL,
 342         send_image: NULL,
 343         send_html: NULL,
 344         exception: NULL,
 345         bridge: vpb_bridge,
 346         indicate: vpb_indicate,
 347         fixup: vpb_fixup,
 348         setoption: NULL,
 349         queryoption: NULL,
 350         transfer: NULL,
 351         write_video: NULL,
 352         bridged_channel: NULL
 353 };
 354
 355 static struct ast_channel_tech vpb_tech_indicate = {
 356         type: type,
 357         description: tdesc,
 358         capabilities: AST_FORMAT_SLINEAR,
 359         properties: NULL,
 360         requester: vpb_request,
 361         devicestate: NULL,
 362         send_digit: vpb_digit,
 363         call: vpb_call,
 364         hangup: vpb_hangup,
 365         answer: vpb_answer,
 366         read: vpb_read,
 367         write: vpb_write,
 368         send_text: NULL,
 369         send_image: NULL,
 370         send_html: NULL,
 371         exception: NULL,
 372         bridge: vpb_bridge,
 373         indicate: NULL,
 374         fixup: vpb_fixup,
 375         setoption: NULL,
 376         queryoption: NULL,
 377         transfer: NULL,
 378         write_video: NULL,
 379         bridged_channel: NULL
 380 };
 381
 382 /* Can't get vpb_bridge() working on v4pci without either a horrible
 383 *  high pitched feedback noise or bad hiss noise depending on gain settings
 384 *  Get asterisk to do the bridging
 385 */
 386 #define BAD_V4PCI_BRIDGE
 387
 388 /* This one enables a half duplex bridge which may be required to prevent high pitched
 389  * feedback when getting asterisk to do the bridging and when using certain gain settings.
 390  */
 391 /* #define HALF_DUPLEX_BRIDGE */
 392
 393 /* This is the Native bridge code, which Asterisk will try before using its own bridging code */
 394 static int vpb_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc)
 395 {
 396         struct vpb_pvt *p0 = (struct vpb_pvt *)c0->tech_pvt;
 397         struct vpb_pvt *p1 = (struct vpb_pvt *)c1->tech_pvt;
 398         int i, res;
 399
 400         struct ast_channel *cs[3];
 401         struct ast_channel *who;
 402         int to = -1;
 403         struct ast_frame *f;
 404
 405         cs[0] = c0;
 406         cs[1] = c1;
 407
 408         #ifdef BAD_V4PCI_BRIDGE
 409         if(p0->vpb_model==vpb_model_v4pci)
 410                 return -2;
 411         #endif
 412         if ( UseNativeBridge != 1){
 413                 return -2;
 414         }
 415
 416 /*
 417         ast_mutex_lock(&p0->lock);
 418         ast_mutex_lock(&p1->lock);
 419 */
 420
 421         /* Bridge channels, check if we can.  I believe we always can, so find a slot.*/
 422
 423         ast_mutex_lock(&bridge_lock); {
 424                 for (i = 0; i < max_bridges; i++)
 425                         if (!bridges[i].inuse)
 426                                 break;
 427                 if (i < max_bridges) {
 428                         bridges[i].inuse = 1;
 429                         bridges[i].endbridge = 0;
 430                         bridges[i].flags = flags;
 431                         bridges[i].rc = rc;
 432                         bridges[i].fo = fo;
 433                         bridges[i].c0 = c0;
 434                         bridges[i].c1 = c1;
 435                 }
 436         } ast_mutex_unlock(&bridge_lock);
 437
 438         if (i == max_bridges) {
 439                 ast_log(LOG_WARNING, "%s: vpb_bridge: Failed to bridge %s and %s!\n", p0->dev, c0->name, c1->name);
 440                 ast_mutex_unlock(&p0->lock);
 441                 ast_mutex_unlock(&p1->lock);
 442                 return -2;
 443         } else {
 444                 /* Set bridge pointers. You don't want to take these locks while holding bridge lock.*/
 445                 ast_mutex_lock(&p0->lock); {
 446                         p0->bridge = &bridges[i];
 447                 } ast_mutex_unlock(&p0->lock);
 448
 449                 ast_mutex_lock(&p1->lock); {
 450                         p1->bridge = &bridges[i];
 451                 } ast_mutex_unlock(&p1->lock);
 452
 453                 if (option_verbose>1)
 454                         ast_verbose(VERBOSE_PREFIX_2 "%s: vpb_bridge: Bridging call entered with [%s, %s]\n",p0->dev, c0->name, c1->name);
 455         }
 456
 457         #ifdef HALF_DUPLEX_BRIDGE
 458
 459         if (option_verbose>1)
 460                 ast_verbose(VERBOSE_PREFIX_2 "%s: vpb_bridge: Starting half-duplex bridge [%s, %s]\n",p0->dev, c0->name, c1->name);
 461
 462         int dir = 0;
 463
 464         memset(p0->buf, 0, sizeof p0->buf);
 465         memset(p1->buf, 0, sizeof p1->buf);
 466
 467         vpb_record_buf_start(p0->handle, VPB_ALAW);
 468         vpb_record_buf_start(p1->handle, VPB_ALAW);
 469
 470         vpb_play_buf_start(p0->handle, VPB_ALAW);
 471         vpb_play_buf_start(p1->handle, VPB_ALAW);
 472
 473         while( !bridges[i].endbridge ) {
 474                 struct vpb_pvt *from, *to;
 475                 if(++dir%2) {
 476                         from = p0;
 477                         to = p1;
 478                 } else {
 479                         from = p1;
 480                         to = p0;
 481                 }
 482                 vpb_record_buf_sync(from->handle, from->buf, VPB_SAMPLES);
 483                 vpb_play_buf_sync(to->handle, from->buf, VPB_SAMPLES);
 484         }
 485
 486         vpb_record_buf_finish(p0->handle);
 487         vpb_record_buf_finish(p1->handle);
 488
 489         vpb_play_buf_finish(p0->handle);
 490         vpb_play_buf_finish(p1->handle);
 491
 492         if (option_verbose>1)
 493                 ast_verbose(VERBOSE_PREFIX_2 "%s: vpb_bridge: Finished half-duplex bridge [%s, %s]\n",p0->dev, c0->name, c1->name);
 494
 495         res = VPB_OK;
 496
 497         #else
 498
 499         res = vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_ON, i+1 /* resource 1 & 2 only for V4PCI*/ );
 500         if (res == VPB_OK) {
 501                 /* pthread_cond_wait(&bridges[i].cond, &bridges[i].lock);*/ /* Wait for condition signal. */
 502                 while( !bridges[i].endbridge ) {
 503                         /* Are we really ment to be doing nothing ?!?! */
 504                         who = ast_waitfor_n(cs, 2, &to);
 505                         if (!who) {
 506                                 ast_log(LOG_DEBUG, "%s: vpb_bridge: Empty frame read...\n",p0->dev);
 507                                 /* check for hangup / whentohangup */
 508                                 if (ast_check_hangup(c0) || ast_check_hangup(c1))
 509                                         break;
 510                                 continue;
 511                         }
 512                         f = ast_read(who);
 513                         if (!f || ((f->frametype == AST_FRAME_DTMF) &&
 514                                            (((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) ||
 515                                        ((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1))))) {
 516                                 *fo = f;
 517                                 *rc = who;
 518                                 ast_log(LOG_DEBUG, "%s: vpb_bridge: Got a [%s]\n",p0->dev, f ? "digit" : "hangup");
 519 /*
 520                                 if ((c0->tech_pvt == pvt0) && (!c0->_softhangup)) {
 521                                         if (pr0->set_rtp_peer(c0, NULL, NULL, 0))
 522                                                 ast_log(LOG_WARNING, "Channel '%s' failed to revert\n", c0->name);
 523                                 }
 524                                 if ((c1->tech_pvt == pvt1) && (!c1->_softhangup)) {
 525                                         if (pr1->set_rtp_peer(c1, NULL, NULL, 0))
 526                                                 ast_log(LOG_WARNING, "Channel '%s' failed to revert back\n", c1->name);
 527                                 }
 528 */
 529                                 /* That's all we needed */
 530                                 /*return 0; */
 531                                 /* Check if we need to break */
 532                                 if (break_for_dtmf){
 533                                         break;
 534                                 }
 535                                 else if ((f->frametype == AST_FRAME_DTMF) && ((f->subclass == '#')||(f->subclass == '*'))){
 536                                         break;
 537                                 }
 538                         } else {
 539                                 if ((f->frametype == AST_FRAME_DTMF) ||
 540                                         (f->frametype == AST_FRAME_VOICE) ||
 541                                         (f->frametype == AST_FRAME_VIDEO))
 542                                         {
 543                                         /* Forward voice or DTMF frames if they happen upon us */
 544                                         /* Actually I dont think we want to forward on any frames!
 545                                         if (who == c0) {
 546                                                 ast_write(c1, f);
 547                                         } else if (who == c1) {
 548                                                 ast_write(c0, f);
 549                                         }
 550                                         */
 551                                 }
 552                                 ast_frfree(f);
 553                         }
 554                         /* Swap priority not that it's a big deal at this point */
 555                         cs[2] = cs[0];
 556                         cs[0] = cs[1];
 557                         cs[1] = cs[2];
 558                 };
 559                 vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_OFF, i+1 /* resource 1 & 2 only for V4PCI*/ );
 560         }
 561
 562         #endif
 563
 564         ast_mutex_lock(&bridge_lock); {
 565                 bridges[i].inuse = 0;
 566         } ast_mutex_unlock(&bridge_lock);
 567
 568         p0->bridge = NULL;
 569         p1->bridge = NULL;
 570
 571
 572         if (option_verbose>1)
 573                 ast_verbose(VERBOSE_PREFIX_2 "Bridging call done with [%s, %s] => %d\n", c0->name, c1->name, res);
 574
 575 /*
 576         ast_mutex_unlock(&p0->lock);
 577         ast_mutex_unlock(&p1->lock);
 578 */
 579         return (res==VPB_OK)?0:-1;
 580 }
 581
 582 static double get_time_in_ms()
 583 {
 584         struct timeval tv;
 585         gettimeofday(&tv, NULL);
 586         return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000);
 587 }
 588
 589 /* Caller ID can be located in different positions between the rings depending on your Telco
 590  * Australian (Telstra) callerid starts 700ms after 1st ring and finishes 1.5s after first ring
 591  * Use ANALYSE_CID to record rings and determine location of callerid
 592  */
 593 /* #define ANALYSE_CID */
 594 #define RING_SKIP 300
 595 #define CID_MSECS 2000
 596
 597 static void get_callerid(struct vpb_pvt *p)
 598 {
 599         short buf[CID_MSECS*8]; /* 8kHz sampling rate */
 600         double cid_record_time;
 601         int rc;
 602         struct ast_channel *owner = p->owner;
 603         void * ws;
 604         char * file="cidsams.wav";
 605
 606
 607         if( ast_mutex_trylock(&p->record_lock) == 0 ) {
 608
 609                 char callerid[AST_MAX_EXTENSION] = "";
 610
 611                 cid_record_time = get_time_in_ms();
 612                 if (option_verbose>3)
 613                         ast_verbose(VERBOSE_PREFIX_4 "CID record - start\n");
 614
 615                 /* Skip any trailing ringtone */
 616                 vpb_sleep(RING_SKIP);
 617
 618                 if (option_verbose>3)
 619                         ast_verbose(VERBOSE_PREFIX_4 "CID record - skipped %fms trailing ring\n",
 620                                  get_time_in_ms() - cid_record_time);
 621                 cid_record_time = get_time_in_ms();
 622
 623                 /* Record bit between the rings which contains the callerid */
 624                 vpb_record_buf_start(p->handle, VPB_LINEAR);
 625                 rc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
 626                 vpb_record_buf_finish(p->handle);
 627 #ifdef ANALYSE_CID
 628                 vpb_wave_open_write(&ws, file, VPB_LINEAR);
 629                 vpb_wave_write(ws,(char*)buf,sizeof(buf));
 630                 vpb_wave_close_write(ws);
 631 #endif
 632
 633                 if (option_verbose>3)
 634                         ast_verbose(VERBOSE_PREFIX_4 "CID record - recorded %fms between rings\n",
 635                                 get_time_in_ms() - cid_record_time);
 636
 637                 ast_mutex_unlock(&p->record_lock);
 638
 639                 if( rc != VPB_OK ) {
 640                         ast_log(LOG_ERROR, "Failed to record caller id sample on %s\n", p->dev );
 641                         return;
 642                 }
 643
 644                 VPB_CID *cli_struct = new VPB_CID;
 645                 cli_struct->ra_cldn[0]=0;
 646                 cli_struct->ra_cn[0]=0;
 647                 /* This decodes FSK 1200baud type callerid */
 648                 if ((rc=vpb_cid_decode2(cli_struct, buf, CID_MSECS*8)) == VPB_OK ) {
 649                         /*
 650                         if (owner->cid.cid_num)
 651                                 free(owner->cid.cid_num);
 652                         owner->cid.cid_num=NULL;
 653                         if (owner->cid.cid_name)
 654                                 free(owner->cid.cid_name);
 655                         owner->cid.cid_name=NULL;
 656                         */
 657
 658                         if (cli_struct->ra_cldn[0]=='\0'){
 659                                 /*
 660                                 owner->cid.cid_num = strdup(cli_struct->cldn);
 661                                 owner->cid.cid_name = strdup(cli_struct->cn);
 662                                 */
 663                                 ast_set_callerid(owner, cli_struct->cldn, cli_struct->cn, cli_struct->cldn);
 664                                 if (option_verbose>3)
 665                                         ast_verbose(VERBOSE_PREFIX_4 "CID record - got [%s] [%s]\n",owner->cid.cid_num,owner->cid.cid_name );
 666                                 snprintf(p->callerid,sizeof(p->callerid)-1,"%s %s",cli_struct->cldn,cli_struct->cn);
 667                         }
 668                         else {
 669                                 ast_log(LOG_ERROR,"CID record - No caller id avalable on %s \n", p->dev);
 670                         }
 671
 672                 } else {
 673                         ast_log(LOG_ERROR, "CID record - Failed to decode caller id on %s - %s\n", p->dev, vpb_strerror(rc) );
 674                         strncpy(p->callerid,"unknown", sizeof(p->callerid) - 1);
 675                 }
 676                 delete cli_struct;
 677
 678         } else
 679                 ast_log(LOG_ERROR, "CID record - Failed to set record mode for caller id on %s\n", p->dev );
 680 }
 681
 682 static void get_callerid_ast(struct vpb_pvt *p)
 683 {
 684         struct callerid_state *cs;
 685         char buf[1024];
 686         char *name=NULL, *number=NULL;
 687         int flags;
 688         int rc=0,vrc;
 689         int sam_count=0;
 690         struct ast_channel *owner = p->owner;
 691         float old_gain;
 692         int which_cid;
 693         void * ws;
 694         char * file="cidsams.wav";
 695
 696         if(p->callerid_type == 1) {
 697         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collected caller ID already\n");
 698                 return;
 699         }
 700         else if(p->callerid_type == 2 ) {
 701                 which_cid=CID_SIG_V23;
 702         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID v23...\n");
 703         }
 704         else if(p->callerid_type == 3) {
 705                 which_cid=CID_SIG_BELL;
 706         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID bell...\n");
 707         }
 708         else {
 709                 if (option_verbose>3)
 710                         ast_verbose(VERBOSE_PREFIX_4 "Caller ID disabled\n");
 711                 return;
 712         }
 713 /*      vpb_sleep(RING_SKIP); */
 714 /*      vpb_record_get_gain(p->handle, &old_gain); */
 715         cs = callerid_new(which_cid);
 716         if (cs){
 717 #ifdef ANALYSE_CID
 718                 vpb_wave_open_write(&ws, file, VPB_MULAW);
 719                 vpb_record_set_gain(p->handle, 3.0);
 720                 vpb_record_set_hw_gain(p->handle,12.0);
 721 #endif
 722                 vpb_record_buf_start(p->handle, VPB_MULAW);
 723                 while((rc == 0)&&(sam_count<8000*3)){
 724                         vrc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
 725                         if (vrc != VPB_OK)
 726                                 ast_log(LOG_ERROR, "%s: Caller ID couldnt read audio buffer!\n",p->dev);
 727                         rc = callerid_feed(cs,(unsigned char *)buf,sizeof(buf),AST_FORMAT_ULAW);
 728 #ifdef ANALYSE_CID
 729                         vpb_wave_write(ws,(char*)buf,sizeof(buf));
 730 #endif
 731                         sam_count+=sizeof(buf);
 732                         if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID samples [%d][%d]...\n",sam_count,rc);
 733                 }
 734                 vpb_record_buf_finish(p->handle);
 735 #ifdef ANALYSE_CID
 736                 vpb_wave_close_write(ws);
 737 #endif
 738                 if (rc == 1){
 739                         callerid_get(cs, &name, &number, &flags);
 740                         if (option_verbose>0)
 741                                 ast_verbose(VERBOSE_PREFIX_1 "%s: Caller ID name [%s] number [%s] flags [%d]\n",p->dev,name, number,flags);
 742                 }
 743                 else {
 744                         ast_log(LOG_ERROR, "%s: Failed to decode Caller ID \n", p->dev );
 745                 }
 746 /*              vpb_record_set_gain(p->handle, old_gain); */
 747 /*              vpb_record_set_hw_gain(p->handle,6.0); */
 748         }
 749         else {
 750                 ast_log(LOG_ERROR, "%s: Failed to create Caller ID struct\n", p->dev );
 751         }
 752         if (owner->cid.cid_num) {
 753                 free(owner->cid.cid_num);
 754                 owner->cid.cid_num = NULL;
 755         }
 756         if (owner->cid.cid_name) {
 757                 free(owner->cid.cid_name);
 758                 owner->cid.cid_name = NULL;
 759         }
 760         if (number)
 761                 ast_shrink_phone_number(number);
 762         if (number && !ast_strlen_zero(number)) {
 763                 owner->cid.cid_num = strdup(number);
 764                 owner->cid.cid_ani = strdup(number);
 765                 if (name && !ast_strlen_zero(name)){
 766                         owner->cid.cid_name = strdup(name);
 767                         snprintf(p->callerid,(sizeof(p->callerid)-1),"%s %s",number,name);
 768                 }
 769                 else {
 770                         snprintf(p->callerid,(sizeof(p->callerid)-1),"%s",number);
 771                 }
 772         }
 773
 774         if (cs)
 775                 callerid_free(cs);
 776 }
 777
 778 /* Terminate any tones we are presently playing */
 779 static void stoptone( int handle)
 780 {
 781         int ret;
 782         VPB_EVENT je;
 783         while(vpb_playtone_state(handle)!=VPB_OK){
 784                 vpb_tone_terminate(handle);
 785                 ret = vpb_get_event_ch_async(handle,&je);
 786                 if ((ret == VPB_OK)&&(je.type != VPB_DIALEND)){
 787                         if (option_verbose > 3){
 788                                         ast_verbose(VERBOSE_PREFIX_4 "Stop tone collected a wrong event!![%d]\n",je.type);
 789                         }
 790 /*                      vpb_put_event(&je); */
 791                 }
 792                 vpb_sleep(10);
 793         }
 794 }
 795
 796 /* Safe vpb_playtone_async */
 797 static int playtone( int handle, VPB_TONE *tone)
 798 {
 799         int ret=VPB_OK;
 800         stoptone(handle);
 801         if (option_verbose > 3)
 802                 ast_verbose(VERBOSE_PREFIX_4 "[%02d]: Playing tone\n", handle);
 803         ret = vpb_playtone_async(handle, tone);
 804         return ret;
 805 }
 806
 807 static inline int monitor_handle_owned(struct vpb_pvt *p, VPB_EVENT *e)
 808 {
 809         struct ast_frame f = {AST_FRAME_CONTROL}; /* default is control, Clear rest. */
 810         int endbridge = 0;
 811         int res=0;
 812
 813         if (option_verbose > 3)
 814                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: [%d=>%d]\n", p->dev, e->type, e->data);
 815
 816         f.src = (char *)type;
 817         switch (e->type) {
 818                 case VPB_RING:
 819                         if (p->mode == MODE_FXO) {
 820                                 f.subclass = AST_CONTROL_RING;
 821                                 vpb_timer_stop(p->ring_timer);
 822                                 vpb_timer_start(p->ring_timer);
 823                         } else
 824                                 f.frametype = -1; /* ignore ring on station port. */
 825                         break;
 826
 827                 case VPB_RING_OFF:
 828                         f.frametype = -1;
 829                         break;
 830
 831                 case VPB_TIMEREXP:
 832                         if (e->data == p->busy_timer_id) {
 833                                 playtone(p->handle,&Busytone);
 834                                 p->state = VPB_STATE_PLAYBUSY;
 835                                 vpb_timer_stop(p->busy_timer);
 836                                 vpb_timer_start(p->busy_timer);
 837                                 f.frametype = -1;
 838                         } else if (e->data == p->ringback_timer_id) {
 839                                 playtone(p->handle, &Ringbacktone);
 840                                 vpb_timer_stop(p->ringback_timer);
 841                                 vpb_timer_start(p->ringback_timer);
 842                                 f.frametype = -1;
 843                         } else if (e->data == p->ring_timer_id) {
 844                                 /* We didnt get another ring in time! */
 845                                 if (p->owner->_state != AST_STATE_UP)  {
 846                                          /* Assume caller has hung up */
 847                                         vpb_timer_stop(p->ring_timer);
 848                                         f.subclass = AST_CONTROL_HANGUP;
 849                                 } else {
 850                                         vpb_timer_stop(p->ring_timer);
 851                                         f.frametype = -1;
 852                                 }
 853
 854                         } else {
 855                                 f.frametype = -1; /* Ignore. */
 856                         }
 857                         break;
 858
 859                 case VPB_DTMF_DOWN:
 860                 case VPB_DTMF:
 861                         if (use_ast_dtmfdet){
 862                                 f.frametype = -1;
 863                         } else if (p->owner->_state == AST_STATE_UP) {
 864                                         f.frametype = AST_FRAME_DTMF;
 865                                         f.subclass = e->data;
 866                         } else
 867                                 f.frametype = -1;
 868                         break;
 869
 870                 case VPB_TONEDETECT:
 871                         if (e->data == VPB_BUSY || e->data == VPB_BUSY_308 || e->data == VPB_BUSY_AUST ) {
 872                                 if (option_verbose > 3)
 873                                         ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: BUSY\n", p->dev);
 874                                 if (p->owner->_state == AST_STATE_UP) {
 875                                         f.subclass = AST_CONTROL_HANGUP;
 876                                 }
 877                                 else {
 878                                         f.subclass = AST_CONTROL_BUSY;
 879                                 }
 880                         }
 881                         else if (e->data == VPB_FAX){
 882                                 if (!p->faxhandled){
 883                                         if (strcmp(p->owner->exten, "fax")) {
 884                                                 if (ast_exists_extension(p->owner, ast_strlen_zero(p->owner->macrocontext) ? p->owner->context : p->owner->macrocontext, "fax", 1, p->owner->cid.cid_num)) {
 885                                                         if (option_verbose > 2)
 886                                                                 ast_verbose(VERBOSE_PREFIX_3 "Redirecting %s to fax extension\n", p->owner->name);
 887                                                         /* Save the DID/DNIS when we transfer the fax call to a "fax" extension */
 888                                                         pbx_builtin_setvar_helper(p->owner,"FAXEXTEN",p->owner->exten);
 889                                                         if (ast_async_goto(p->owner, p->owner->context, "fax", 1))
 890                                                                 ast_log(LOG_WARNING, "Failed to async goto '%s' into fax of '%s'\n", p->owner->name, p->owner->context);
 891                                                 } else
 892                                                         ast_log(LOG_NOTICE, "Fax detected, but no fax extension\n");
 893                                         } else
 894                                                 ast_log(LOG_DEBUG, "Already in a fax extension, not redirecting\n");
 895                                 } else
 896                                         ast_log(LOG_DEBUG, "Fax already handled\n");
 897
 898                         }
 899                         else if (e->data == VPB_GRUNT) {
 900                                 if( ( get_time_in_ms() - p->lastgrunt ) > gruntdetect_timeout ) {
 901                                         /* Nothing heard on line for a very long time
 902                                          * Timeout connection */
 903                                         if (option_verbose > 2)
 904                                                 ast_verbose(VERBOSE_PREFIX_3 "grunt timeout\n");
 905                                         ast_log(LOG_NOTICE,"%s: Line hangup due of lack of conversation\n",p->dev);
 906                                         f.subclass = AST_CONTROL_HANGUP;
 907                                 } else {
 908                                         p->lastgrunt = get_time_in_ms();
 909                                         f.frametype = -1;
 910                                 }
 911                         }
 912                         else {
 913                                 f.frametype = -1;
 914                         }
 915                         break;
 916
 917                 case VPB_CALLEND:
 918                         #ifdef DIAL_WITH_CALL_PROGRESS
 919                         if (e->data == VPB_CALL_CONNECTED)
 920                                 f.subclass = AST_CONTROL_ANSWER;
 921                         else if (e->data == VPB_CALL_NO_DIAL_TONE || e->data == VPB_CALL_NO_RING_BACK)
 922                                 f.subclass =  AST_CONTROL_CONGESTION;
 923                         else if (e->data == VPB_CALL_NO_ANSWER || e->data == VPB_CALL_BUSY)
 924                                 f.subclass = AST_CONTROL_BUSY;
 925                         else if (e->data  == VPB_CALL_DISCONNECTED)
 926                                 f.subclass = AST_CONTROL_HANGUP;
 927                         #else
 928                         ast_log(LOG_NOTICE,"%s: Got call progress callback but blind dialing \n", p->dev);
 929                         f.frametype = -1;
 930                         #endif
 931                         break;
 932
 933                 case VPB_STATION_OFFHOOK:
 934                         f.subclass = AST_CONTROL_ANSWER;
 935                         break;
 936
 937                 case VPB_DROP:
 938                         if ((p->mode == MODE_FXO)&&(UseLoopDrop)){ /* ignore loop drop on stations */
 939                                 if (p->owner->_state == AST_STATE_UP)
 940                                         f.subclass = AST_CONTROL_HANGUP;
 941                                 else
 942                                         f.frametype = -1;
 943                         }
 944                         break;
 945                 case VPB_STATION_ONHOOK:
 946                         f.subclass = AST_CONTROL_HANGUP;
 947                         break;
 948
 949                 case VPB_STATION_FLASH:
 950                         f.subclass = AST_CONTROL_FLASH;
 951                         break;
 952
 953                 /* Called when dialing has finished and ringing starts
 954                  * No indication that call has really been answered when using blind dialing
 955                  */
 956                 case VPB_DIALEND:
 957                         if (p->state < 5){
 958                                 f.subclass = AST_CONTROL_ANSWER;
 959                                 if (option_verbose > 1)
 960                                         ast_verbose(VERBOSE_PREFIX_2 "%s: Dialend\n", p->dev);
 961                         } else {
 962                                 f.frametype = -1;
 963                         }
 964                         break;
 965
 966                 case VPB_PLAY_UNDERFLOW:
 967                         f.frametype = -1;
 968                         vpb_reset_play_fifo_alarm(p->handle);
 969                         break;
 970
 971                 case VPB_RECORD_OVERFLOW:
 972                         f.frametype = -1;
 973                         vpb_reset_record_fifo_alarm(p->handle);
 974                         break;
 975
 976                 default:
 977                         f.frametype = -1;
 978                         break;
 979         }
 980
 981 /*
 982         if (option_verbose > 3) ast_verbose("%s: LOCKING in handle_owned [%d]\n", p->dev,res);
 983         res = ast_mutex_lock(&p->lock);
 984         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
 985 */
 986         {
 987                 if (p->bridge) { /* Check what happened, see if we need to report it. */
 988                         switch (f.frametype) {
 989                                 case AST_FRAME_DTMF:
 990                                         if (    !(p->bridge->c0 == p->owner &&
 991                                                         (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_0) ) &&
 992                                                 !(p->bridge->c1 == p->owner &&
 993                                                         (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_1) ))
 994                                                 /* Kill bridge, this is interesting. */
 995                                                 endbridge = 1;
 996                                         break;
 997
 998                                 case AST_FRAME_CONTROL:
 999                                         if (!(p->bridge->flags & AST_BRIDGE_IGNORE_SIGS))
1000                                         #if 0
1001                                         if (f.subclass == AST_CONTROL_BUSY ||
1002                                         f.subclass == AST_CONTROL_CONGESTION ||
1003                                         f.subclass == AST_CONTROL_HANGUP ||
1004                                         f.subclass == AST_CONTROL_FLASH)
1005                                         #endif
1006                                                 endbridge = 1;
1007                                         break;
1008
1009                                 default:
1010                                         break;
1011                         }
1012                         if (endbridge) {
1013                                 if (p->bridge->fo)
1014                                         *p->bridge->fo = ast_frisolate(&f);
1015                                 if (p->bridge->rc)
1016                                         *p->bridge->rc = p->owner;
1017
1018                                 ast_mutex_lock(&p->bridge->lock); {
1019                                         p->bridge->endbridge = 1;
1020                                         pthread_cond_signal(&p->bridge->cond);
1021                                 } ast_mutex_unlock(&p->bridge->lock);
1022                         }
1023                 }
1024         }
1025
1026         if (endbridge){
1027                 res = ast_mutex_unlock(&p->lock);
1028 /*
1029                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res);
1030 */
1031                 return 0;
1032         }
1033
1034         if (option_verbose > 3)
1035                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: Prepared frame type[%d]subclass[%d], bridge=%p owner=[%s]\n",
1036                         p->dev, f.frametype, f.subclass, (void *)p->bridge, p->owner->name);
1037
1038         /* Trylock used here to avoid deadlock that can occur if we
1039          * happen to be in here handling an event when hangup is called
1040          * Problem is that hangup holds p->owner->lock
1041          */
1042         if ((f.frametype >= 0)&& (f.frametype != AST_FRAME_NULL)&&(p->owner)) {
1043                 if (ast_mutex_trylock(&p->owner->lock)==0)  {
1044                         ast_queue_frame(p->owner, &f);
1045                         ast_mutex_unlock(&p->owner->lock);
1046                         if (option_verbose > 3)
1047                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handled_owned: Queued Frame to [%s]\n", p->dev,p->owner->name);
1048                 } else {
1049                         ast_verbose("%s: handled_owned: Missed event %d/%d \n",
1050                                 p->dev,f.frametype, f.subclass);
1051                 }
1052         }
1053         res = ast_mutex_unlock(&p->lock);
1054 /*
1055         if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res);
1056 */
1057
1058         return 0;
1059 }
1060
1061 static inline int monitor_handle_notowned(struct vpb_pvt *p, VPB_EVENT *e)
1062 {
1063         char s[2] = {0};
1064         struct ast_channel *owner = p->owner;
1065         char cid_num[256];
1066         char cid_name[256];
1067         struct ast_channel *c;
1068
1069         if (option_verbose > 3) {
1070                 char str[VPB_MAX_STR];
1071                 vpb_translate_event(e, str);
1072                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, event[%d][%s]=[%d]\n",
1073                         p->dev, p->mode, e->type,str, e->data);
1074         }
1075
1076         switch(e->type) {
1077                 case VPB_RING:
1078                         if (p->mode == MODE_FXO) /* FXO port ring, start * */ {
1079                                 vpb_new(p, AST_STATE_RING, p->context);
1080                                 if(p->callerid_type == 1) {
1081                                         if (option_verbose>3)
1082                                                 ast_verbose(VERBOSE_PREFIX_4 "Using VPB Caller ID\n");
1083                                         get_callerid(p);        /* Australian Caller ID only between 1st and 2nd ring  */
1084                                 }
1085                                 get_callerid_ast(p);    /* Caller ID using the ast functions */
1086                                 vpb_timer_stop(p->ring_timer);
1087                                 vpb_timer_start(p->ring_timer);
1088                         }
1089                         break;
1090
1091                 case VPB_RING_OFF:
1092                         break;
1093
1094                 case VPB_STATION_OFFHOOK:
1095                         if (p->mode == MODE_IMMEDIATE)
1096                                 vpb_new(p,AST_STATE_RING, p->context);
1097                         else {
1098                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: playing dialtone\n",p->dev);
1099                                 playtone(p->handle, &Dialtone);
1100                                 p->state=VPB_STATE_PLAYDIAL;
1101                                 p->wantdtmf = 1;
1102                                 p->ext[0] = 0;  /* Just to be sure & paranoid.*/
1103                         }
1104                         break;
1105
1106                 case VPB_DIALEND:
1107                         if (p->mode == MODE_DIALTONE){
1108                                 if (p->state == VPB_STATE_PLAYDIAL) {
1109                                         playtone(p->handle, &Dialtone);
1110                                         p->wantdtmf = 1;
1111                                         p->ext[0] = 0;  /* Just to be sure & paranoid. */
1112                                 }
1113                                 /* These are not needed as they have timers to restart them
1114                                 else if (p->state == VPB_STATE_PLAYBUSY) {
1115                                         playtone(p->handle, &Busytone);
1116                                         p->wantdtmf = 1;
1117                                         p->ext[0] = 0;
1118                                 }
1119                                 else if (p->state == VPB_STATE_PLAYRING) {
1120                                         playtone(p->handle, &Ringbacktone);
1121                                         p->wantdtmf = 1;
1122                                         p->ext[0] = 0;
1123                                 }
1124                                 */
1125                         } else {
1126                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Got a DIALEND when not really expected\n",p->dev);
1127                         }
1128                         break;
1129
1130                 case VPB_STATION_ONHOOK:        /* clear ext */
1131                         stoptone(p->handle);
1132                         p->wantdtmf = 1 ;
1133                         p->ext[0] = 0;
1134                         p->state=VPB_STATE_ONHOOK;
1135                         break;
1136                 case VPB_TIMEREXP:
1137                         if (e->data == p->dtmfidd_timer_id) {
1138                                 if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)){
1139                                         if (option_verbose > 3)
1140                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: DTMF IDD timer out, matching on [%s] in [%s]\n", p->dev,p->ext , p->context);
1141
1142                                         vpb_new(p,AST_STATE_RING, p->context);
1143                                 }
1144                         } else if (e->data == p->ring_timer_id) {
1145                                 /* We didnt get another ring in time! */
1146                                 if (p->owner->_state != AST_STATE_UP)  {
1147                                          /* Assume caller has hung up */
1148                                         vpb_timer_stop(p->ring_timer);
1149                                 }
1150                         }
1151                         break;
1152
1153                 case VPB_DTMF:
1154                         if (p->state == VPB_STATE_ONHOOK){
1155                                 /* DTMF's being passed while on-hook maybe Caller ID */
1156                                 if ( p->mode == MODE_FXO ) {
1157                                         if ( e->data == DTMF_CID_START ) { /* CallerID Start signal */
1158                                                 p->dtmf_caller_pos = 0; /* Leaves the first digit out */
1159                                                 memset(p->callerid,0,AST_MAX_EXTENSION);
1160                                         }
1161                                         else if ( e->data == DTMF_CID_STOP ) { /* CallerID End signal */
1162                                                 p->callerid[p->dtmf_caller_pos] = '\0';
1163                                                 if (option_verbose > 2)
1164                                                         ast_verbose(VERBOSE_PREFIX_3 " %s: DTMF CallerID %s\n",p->dev,p->callerid);
1165                                                 if (owner){
1166                                                         /*
1167                                                         if (owner->cid.cid_num)
1168                                                                 free(owner->cid.cid_num);
1169                                                         owner->cid.cid_num=NULL;
1170                                                         if (owner->cid.cid_name)
1171                                                                 free(owner->cid.cid_name);
1172                                                         owner->cid.cid_name=NULL;
1173                                                         owner->cid.cid_num = strdup(p->callerid);
1174                                                         */
1175                                                         cid_name[0] = '\0';
1176                                                         cid_num[0] = '\0';
1177                                                         ast_callerid_split(p->callerid, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
1178                                                         ast_set_callerid(owner, cid_num, cid_name, cid_num);
1179
1180                                                 }
1181                                                 else {
1182                                                         if (option_verbose > 2)
1183                                                                 ast_verbose(VERBOSE_PREFIX_3 " %s: DTMF CallerID: no owner to assign CID \n",p->dev);
1184                                                 }
1185                                         } else if ( p->dtmf_caller_pos < AST_MAX_EXTENSION ) {
1186                                                 if ( p->dtmf_caller_pos >= 0 )
1187                                                         p->callerid[p->dtmf_caller_pos] = e->data;
1188                                                 p->dtmf_caller_pos++;
1189                                         }
1190                                 }
1191                                 break;
1192                         }
1193                         if (p->wantdtmf == 1) {
1194                                 stoptone(p->handle);
1195                                 p->wantdtmf = 0;
1196                         }
1197                         p->state=VPB_STATE_GETDTMF;
1198                         s[0] = e->data;
1199                         strncat(p->ext, s, sizeof(p->ext) - strlen(p->ext) - 1);
1200                         #if 0
1201                         if (!strcmp(p->ext,ast_pickup_ext())) {
1202                                 /* Call pickup has been dialled! */
1203                                 if (ast_pickup_call(c)) {
1204                                         /* Call pickup wasnt possible */
1205                                 }
1206                         }
1207                         else
1208                         #endif
1209                         if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)){
1210                                 if ( ast_canmatch_extension(NULL, p->context, p->ext, 1, p->callerid)){
1211                                         if (option_verbose > 3)
1212                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Multiple matches on [%s] in [%s]\n", p->dev,p->ext , p->context);
1213                                         /* Start DTMF IDD timer */
1214                                         vpb_timer_stop(p->dtmfidd_timer);
1215                                         vpb_timer_start(p->dtmfidd_timer);
1216                                 }
1217                                 else {
1218                                         if (option_verbose > 3)
1219                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Matched on [%s] in [%s]\n", p->dev,p->ext , p->context);
1220                                         vpb_new(p,AST_STATE_UP, p->context);
1221                                 }
1222                         } else if (!ast_canmatch_extension(NULL, p->context, p->ext, 1, p->callerid)){
1223                                 if (ast_exists_extension(NULL, "default", p->ext, 1, p->callerid)) {
1224                                         vpb_new(p,AST_STATE_UP, "default");
1225                                 } else if (!ast_canmatch_extension(NULL, "default", p->ext, 1, p->callerid)) {
1226                                         if (option_verbose > 3) {
1227                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: can't match anything in %s or default\n", p->dev, p->context);
1228                                         }
1229                                         playtone(p->handle, &Busytone);
1230                                         vpb_timer_stop(p->busy_timer);
1231                                         vpb_timer_start(p->busy_timer);
1232                                         p->state = VPB_STATE_PLAYBUSY;
1233                                 }
1234                         }
1235                         break;
1236
1237                 default:
1238                         /* Ignore.*/
1239                         break;
1240         }
1241
1242         if (option_verbose > 3)
1243                 ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, [%d=>%d]\n",
1244                         p->dev, p->mode, e->type, e->data);
1245
1246         return 0;
1247 }
1248
1249 static void *do_monitor(void *unused)
1250 {
1251
1252         /* Monitor thread, doesn't die until explicitly killed. */
1253
1254         if (option_verbose > 1)
1255                 ast_verbose(VERBOSE_PREFIX_2 "Starting vpb monitor thread[%ld]\n",
1256         pthread_self());
1257
1258         pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
1259
1260         for(;;) {
1261                 VPB_EVENT e;
1262                 VPB_EVENT je;
1263                 char str[VPB_MAX_STR];
1264                 struct vpb_pvt *p;
1265
1266                 /*
1267                 if (option_verbose > 3)
1268                      ast_verbose(VERBOSE_PREFIX_4 "Monitor waiting for event\n");
1269                 */
1270
1271                 int res = vpb_get_event_sync(&e, VPB_WAIT_TIMEOUT);
1272                 if( (res==VPB_NO_EVENTS) || (res==VPB_TIME_OUT) ){
1273                         /*
1274                         if (option_verbose > 3){
1275                                 if (res ==  VPB_NO_EVENTS){
1276                                         ast_verbose(VERBOSE_PREFIX_4 "No events....\n");
1277                                 } else {
1278                                         ast_verbose(VERBOSE_PREFIX_4 "No events, timed out....\n");
1279                                 }
1280                         }
1281                         */
1282                         continue;
1283                 }
1284
1285                 if (res != VPB_OK) {
1286                         ast_log(LOG_ERROR,"Monitor get event error %s\n", vpb_strerror(res) );
1287                         ast_verbose("Monitor get event error %s\n", vpb_strerror(res) );
1288                         continue;
1289                 }
1290
1291                 str[0] = 0;
1292
1293                 p = NULL;
1294
1295                 ast_mutex_lock(&monlock); {
1296
1297                         if (e.type == VPB_NULL_EVENT) {
1298                                 if (option_verbose > 3)
1299                                         ast_verbose(VERBOSE_PREFIX_4 "Monitor got null event\n");
1300                         }
1301                         else {
1302                                 vpb_translate_event(&e, str);
1303                                 if (strlen(str)>1){
1304                                         str[(strlen(str)-1)]='\0';
1305                                 }
1306
1307                                 ast_mutex_lock(&iflock); {
1308                                         p = iflist;
1309                                         while (p && p->handle != e.handle)
1310                                                 p = p->next;
1311                                 } ast_mutex_unlock(&iflock);
1312
1313                                 if (p && (option_verbose > 3))
1314                                         ast_verbose(VERBOSE_PREFIX_4 "%s: Event [%d=>%s] \n",
1315                                                 p ? p->dev : "null", e.type, str );
1316                         }
1317
1318                 } ast_mutex_unlock(&monlock);
1319
1320                 if (!p) {
1321                         if (e.type != VPB_NULL_EVENT){
1322                                 ast_log(LOG_WARNING, "Got event [%s][%d], no matching iface!\n", str,e.type);
1323                                 if (option_verbose > 3){
1324                                         ast_verbose(VERBOSE_PREFIX_4 "vpb/ERR: No interface for Event [%d=>%s] \n",e.type,str );
1325                                 }
1326                         }
1327                         continue;
1328                 }
1329
1330                 /* flush the event from the channel event Q */
1331                 vpb_get_event_ch_async(e.handle,&je);
1332                 if (option_verbose > 4){
1333                         vpb_translate_event(&je, str);
1334                         ast_verbose("%s: Flushing event [%d]=>%s\n",p->dev,je.type,str);
1335                 }
1336
1337                 /* Check for ownership and locks */
1338                 if ((p->owner)&&(!p->golock)){
1339                         /* Need to get owner lock */
1340                         /* Safely grab both p->lock and p->owner->lock so that there
1341                         cannot be a race with something from the other side */
1342                         /*
1343                         ast_mutex_lock(&p->lock);
1344                         while(ast_mutex_trylock(&p->owner->lock)) {
1345                                 ast_mutex_unlock(&p->lock);
1346                                 usleep(1);
1347                                 ast_mutex_lock(&p->lock);
1348                                 if (!p->owner)
1349                                         break;
1350                         }
1351                         if (p->owner)
1352                                 p->golock=1;
1353                         */
1354                 }
1355                 /* Two scenarios: Are you owned or not. */
1356                 if (p->owner) {
1357                         monitor_handle_owned(p, &e);
1358                 } else {
1359                         monitor_handle_notowned(p, &e);
1360                 }
1361                 /* if ((!p->owner)&&(p->golock)){
1362                         ast_mutex_unlock(&p->owner->lock);
1363                         ast_mutex_unlock(&p->lock);
1364                 }
1365                 */
1366
1367         }
1368
1369         return NULL;
1370 }
1371
1372 static int restart_monitor(void)
1373 {
1374         int error = 0;
1375
1376         /* If we're supposed to be stopped -- stay stopped */
1377         if (mthreadactive == -2)
1378                 return 0;
1379
1380         if (option_verbose > 3)
1381                 ast_verbose(VERBOSE_PREFIX_4 "Restarting monitor\n");
1382
1383         ast_mutex_lock(&monlock); {
1384                 if (monitor_thread == pthread_self()) {
1385                         ast_log(LOG_WARNING, "Cannot kill myself\n");
1386                         error = -1;
1387                         if (option_verbose > 3)
1388                                 ast_verbose(VERBOSE_PREFIX_4 "Monitor trying to kill monitor\n");
1389                 }
1390                 else {
1391                         if (mthreadactive != -1) {
1392                                 /* Why do other drivers kill the thread? No need says I, simply awake thread with event. */
1393                                 VPB_EVENT e;
1394                                 e.handle = 0;
1395                                 e.type = VPB_NULL_EVENT;
1396                                 e.data = 0;
1397
1398                                 if (option_verbose > 3)
1399                                         ast_verbose(VERBOSE_PREFIX_4 "Trying to reawake monitor\n");
1400
1401                                 vpb_put_event(&e);
1402                         } else {
1403                                 /* Start a new monitor */
1404                                 int pid = ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL);
1405                                 if (option_verbose > 3)
1406                                         ast_verbose(VERBOSE_PREFIX_4 "Created new monitor thread %d\n",pid);
1407                                 if (pid < 0) {
1408                                         ast_log(LOG_ERROR, "Unable to start monitor thread.\n");
1409                                         error = -1;
1410                                 } else
1411                                         mthreadactive = 0; /* Started the thread!*/
1412                         }
1413                 }
1414         } ast_mutex_unlock(&monlock);
1415
1416         if (option_verbose > 3)
1417                 ast_verbose(VERBOSE_PREFIX_4 "Monitor restarted\n");
1418
1419         return error;
1420 }
1421
1422 /* Per board config that must be called after vpb_open() */
1423 static void mkbrd(vpb_model_t model, int echo_cancel)
1424 {
1425         if(!bridges) {
1426                 if(model==vpb_model_v4pci)
1427                         max_bridges = MAX_BRIDGES_V4PCI;
1428                 bridges = (vpb_bridge_t *)malloc(max_bridges * sizeof(vpb_bridge_t) );
1429                 if(!bridges)
1430                         ast_log(LOG_ERROR, "Failed to initialize bridges\n");
1431                 else {
1432                         memset(bridges,0,max_bridges * sizeof(vpb_bridge_t));
1433                         for(int i = 0; i < max_bridges; i++ ) {
1434                                 ast_mutex_init(&bridges[i].lock);
1435                                 pthread_cond_init(&bridges[i].cond, NULL);
1436                         }
1437                 }
1438         }
1439         if(!echo_cancel) {
1440                 if (model==vpb_model_v4pci) {
1441                         vpb_echo_canc_disable();
1442                         ast_log(LOG_NOTICE, "Voicetronix echo cancellation OFF\n");
1443                 }
1444                 else {
1445                 /* need to it port by port for OpenSwitch*/
1446                 }
1447         } else {
1448                 if (model==vpb_model_v4pci) {
1449                         vpb_echo_canc_enable();
1450                         ast_log(LOG_NOTICE, "Voicetronix echo cancellation ON\n");
1451                         if (ec_supp_threshold > -1){
1452                                 vpb_echo_canc_set_sup_thresh((short *)&ec_supp_threshold);
1453                                 ast_log(LOG_NOTICE, "Voicetronix EC Sup Thres set\n");
1454                         }
1455                 }
1456                 else {
1457                 /* need to it port by port for OpenSwitch*/
1458                 }
1459         }
1460 }
1461
1462 static struct vpb_pvt *mkif(int board, int channel, int mode, int gains, float txgain, float rxgain,
1463                          float txswgain, float rxswgain, int bal1, int bal2, int bal3,
1464                          char * callerid, int echo_cancel, int group, ast_group_t callgroup, ast_group_t pickupgroup )
1465 {
1466         struct vpb_pvt *tmp;
1467         char buf[64];
1468
1469         tmp = (struct vpb_pvt *)calloc(1, sizeof *tmp);
1470
1471         if (!tmp)
1472                 return NULL;
1473
1474         tmp->handle = vpb_open(board, channel);
1475
1476         if (tmp->handle < 0) {
1477                 ast_log(LOG_WARNING, "Unable to create channel vpb/%d-%d: %s\n",
1478                                         board, channel, strerror(errno));
1479                 free(tmp);
1480                 return NULL;
1481         }
1482
1483         snprintf(tmp->dev, sizeof(tmp->dev), "vpb/%d-%d", board, channel);
1484
1485         tmp->mode = mode;
1486
1487         tmp->group = group;
1488         tmp->callgroup = callgroup;
1489         tmp->pickupgroup = pickupgroup;
1490
1491         /* Initilize dtmf caller ID position variable */
1492         tmp->dtmf_caller_pos=0;
1493
1494         strncpy(tmp->language, language, sizeof(tmp->language) - 1);
1495         strncpy(tmp->context, context, sizeof(tmp->context) - 1);
1496
1497         tmp->callerid_type=0;
1498         if(callerid) {
1499                 if (strcasecmp(callerid,"on")==0){
1500                         tmp->callerid_type =1;
1501                         strncpy(tmp->callerid, "unknown", sizeof(tmp->callerid) - 1);
1502                 }
1503                 else if (strcasecmp(callerid,"v23")==0){
1504                         tmp->callerid_type =2;
1505                         strncpy(tmp->callerid, "unknown", sizeof(tmp->callerid) - 1);
1506                 }
1507                 else if (strcasecmp(callerid,"bell")==0){
1508                         tmp->callerid_type =3;
1509                         strncpy(tmp->callerid, "unknown", sizeof(tmp->callerid) - 1);
1510                 }
1511                 else {
1512                         strncpy(tmp->callerid, callerid, sizeof(tmp->callerid) - 1);
1513                 }
1514         } else {
1515                 strncpy(tmp->callerid, "unknown", sizeof(tmp->callerid) - 1);
1516         }
1517
1518         /* check if codec balances have been set in the config file */
1519         if (bal3>=0) {
1520                 if ((bal1>=0) && !(bal1 & 32)) bal1 |= 32;
1521                         vpb_set_codec_reg(tmp->handle, 0x42, bal3);
1522         }
1523         if(bal1>=0) vpb_set_codec_reg(tmp->handle, 0x32, bal1);
1524         if(bal2>=0) vpb_set_codec_reg(tmp->handle, 0x3a, bal2);
1525
1526         if (gains & VPB_GOT_TXHWG){
1527                 if (txgain > MAX_VPB_GAIN){
1528                         tmp->txgain = MAX_VPB_GAIN;
1529                 }
1530                 else if (txgain < MIN_VPB_GAIN){
1531                         tmp->txgain = MIN_VPB_GAIN;
1532                 }
1533                 else {
1534                         tmp->txgain = txgain;
1535                 }
1536
1537                 ast_log(LOG_NOTICE,"VPB setting Tx Hw gain to [%f]\n",tmp->txgain);
1538                 vpb_play_set_hw_gain(tmp->handle, tmp->txgain);
1539         }
1540
1541         if (gains & VPB_GOT_RXHWG){
1542                 if (rxgain > MAX_VPB_GAIN){
1543                         tmp->rxgain = MAX_VPB_GAIN;
1544                 }
1545                 else if (rxgain < MIN_VPB_GAIN){
1546                         tmp->rxgain = MIN_VPB_GAIN;
1547                 }
1548                 else {
1549                         tmp->rxgain = rxgain;
1550                 }
1551                 ast_log(LOG_NOTICE,"VPB setting Rx Hw gain to [%f]\n",tmp->rxgain);
1552                 vpb_record_set_hw_gain(tmp->handle,tmp->rxgain);
1553         }
1554
1555         if (gains & VPB_GOT_TXSWG){
1556                 tmp->txswgain = txswgain;
1557                 ast_log(LOG_NOTICE,"VPB setting Tx Sw gain to [%f]\n",tmp->txswgain);
1558                 vpb_play_set_gain(tmp->handle, tmp->txswgain);
1559         }
1560
1561         if (gains & VPB_GOT_RXSWG){
1562                 tmp->rxswgain = rxswgain;
1563                 ast_log(LOG_NOTICE,"VPB setting Rx Sw gain to [%f]\n",tmp->rxswgain);
1564                 vpb_record_set_gain(tmp->handle, tmp->rxswgain);
1565         }
1566
1567         tmp->vpb_model = vpb_model_unknown;
1568         if( vpb_get_model(buf) == VPB_OK ) {
1569                 if(strcmp(buf,"V12PCI")==0)
1570                         tmp->vpb_model = vpb_model_v12pci;
1571                 else if(strcmp(buf,"VPB4")==0)
1572                         tmp->vpb_model = vpb_model_v4pci;
1573         }
1574
1575         ast_mutex_init(&tmp->owner_lock);
1576         ast_mutex_init(&tmp->lock);
1577         ast_mutex_init(&tmp->record_lock);
1578         ast_mutex_init(&tmp->play_lock);
1579         ast_mutex_init(&tmp->play_dtmf_lock);
1580
1581         /* set default read state */
1582         tmp->read_state = 0;
1583
1584         tmp->golock=0;
1585
1586         tmp->busy_timer_id = vpb_timer_get_unique_timer_id();
1587         vpb_timer_open(&tmp->busy_timer, tmp->handle, tmp->busy_timer_id, TIMER_PERIOD_BUSY);
1588
1589         tmp->ringback_timer_id = vpb_timer_get_unique_timer_id();
1590         vpb_timer_open(&tmp->ringback_timer, tmp->handle, tmp->ringback_timer_id, TIMER_PERIOD_RINGBACK);
1591
1592         tmp->ring_timer_id = vpb_timer_get_unique_timer_id();
1593         vpb_timer_open(&tmp->ring_timer, tmp->handle, tmp->ring_timer_id, TIMER_PERIOD_RING);
1594
1595         tmp->dtmfidd_timer_id = vpb_timer_get_unique_timer_id();
1596         vpb_timer_open(&tmp->dtmfidd_timer, tmp->handle, tmp->dtmfidd_timer_id, dtmf_idd);
1597
1598         if (mode == MODE_FXO){
1599                 if (use_ast_dtmfdet)
1600                         vpb_set_event_mask(tmp->handle, VPB_EVENTS_NODTMF );
1601                 else
1602                         vpb_set_event_mask(tmp->handle, VPB_EVENTS_ALL );
1603         }
1604         else {
1605 /*
1606                 if (use_ast_dtmfdet)
1607                         vpb_set_event_mask(tmp->handle, VPB_EVENTS_NODTMF );
1608                 else
1609 */
1610                         vpb_set_event_mask(tmp->handle, VPB_EVENTS_STAT );
1611         }
1612
1613         if ((tmp->vpb_model == vpb_model_v12pci) && (echo_cancel)){
1614                 vpb_hostecho_on(tmp->handle);
1615         }
1616         if (use_ast_dtmfdet) {
1617                 tmp->vad = ast_dsp_new();
1618                 ast_dsp_set_features(tmp->vad, DSP_FEATURE_DTMF_DETECT);
1619                 ast_dsp_digitmode(tmp->vad, DSP_DIGITMODE_DTMF);
1620                 if (relaxdtmf)
1621                         ast_dsp_digitmode(tmp->vad, DSP_DIGITMODE_DTMF|DSP_DIGITMODE_RELAXDTMF);
1622         }
1623         else {
1624                 tmp->vad = NULL;
1625         }
1626
1627         /* define grunt tone */
1628         vpb_settonedet(tmp->handle,&toned_ungrunt);
1629
1630         ast_log(LOG_NOTICE,"Voicetronix %s channel %s initialized (rxsg=%f/txsg=%f/rxhg=%f/txhg=%f)(0x%x/0x%x/0x%x)\n",
1631                 (tmp->vpb_model==vpb_model_v4pci)?"V4PCI": (tmp->vpb_model==vpb_model_v12pci)?"V12PCI":"[Unknown model]",
1632                 tmp->dev, tmp->rxswgain, tmp->txswgain, tmp->rxgain, tmp->txgain, bal1, bal2, bal3 );
1633
1634         return tmp;
1635 }
1636
1637 static int vpb_indicate(struct ast_channel *ast, int condition)
1638 {
1639         struct vpb_pvt *p = (struct vpb_pvt *)ast->tech_pvt;
1640         int res = 0;
1641         int tmp = 0;
1642
1643         if (use_ast_ind == 1) {
1644                 if (option_verbose > 3)
1645                         ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate called when using Ast Indications !?!\n", p->dev);
1646                 return 0;
1647         }
1648
1649         if (option_verbose > 3)
1650                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate [%d] state[%d]\n", p->dev, condition,ast->_state);
1651 /*
1652         if (ast->_state != AST_STATE_UP) {
1653                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate Not in AST_STATE_UP\n", p->dev, condition,ast->_state);
1654                 return res;
1655         }
1656 */
1657
1658 /*
1659         if (option_verbose > 3) ast_verbose("%s: LOCKING in indicate \n", p->dev);
1660         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1661 */
1662         ast_mutex_lock(&p->lock);
1663         switch(condition) {
1664                 case AST_CONTROL_BUSY:
1665                 case AST_CONTROL_CONGESTION:
1666                         if (ast->_state == AST_STATE_UP) {
1667                                 playtone(p->handle, &Busytone);
1668                                 p->state = VPB_STATE_PLAYBUSY;
1669                                 vpb_timer_stop(p->busy_timer);
1670                                 vpb_timer_start(p->busy_timer);
1671                         }
1672                         break;
1673                 case AST_CONTROL_RINGING:
1674                         if (ast->_state == AST_STATE_UP) {
1675                                 playtone(p->handle, &Ringbacktone);
1676                                 p->state = VPB_STATE_PLAYRING;
1677                                 if (option_verbose > 3)
1678                                         ast_verbose(VERBOSE_PREFIX_4 "%s: vpb indicate: setting ringback timer [%d]\n", p->dev,p->ringback_timer_id);
1679
1680                                 vpb_timer_stop(p->ringback_timer);
1681                                 vpb_timer_start(p->ringback_timer);
1682                         }
1683                         break;
1684                 case AST_CONTROL_ANSWER:
1685                 case -1: /* -1 means stop playing? */
1686                         vpb_timer_stop(p->ringback_timer);
1687                         vpb_timer_stop(p->busy_timer);
1688                         stoptone(p->handle);
1689                         break;
1690                 case AST_CONTROL_HANGUP:
1691                         if (ast->_state == AST_STATE_UP) {
1692                                 playtone(p->handle, &Busytone);
1693                                 p->state = VPB_STATE_PLAYBUSY;
1694                                 vpb_timer_stop(p->busy_timer);
1695                                 vpb_timer_start(p->busy_timer);
1696                         }
1697                         break;
1698
1699                 default:
1700                         res = 0;
1701                         break;
1702         }
1703         tmp = ast_mutex_unlock(&p->lock);
1704 /*
1705         if (option_verbose > 3) ast_verbose("%s: unLOCKING in indicate [%d]\n", p->dev,tmp);
1706 */
1707         return res;
1708 }
1709
1710 static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
1711 {
1712         struct vpb_pvt *p = (struct vpb_pvt *)newchan->tech_pvt;
1713         int res = 0;
1714
1715 /*
1716         if (option_verbose > 3) ast_verbose("%s: LOCKING in fixup \n", p->dev);
1717         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1718 */
1719         ast_mutex_lock(&p->lock);
1720         ast_log(LOG_DEBUG, "New owner for channel %s is %s\n", p->dev, newchan->name);
1721
1722         if (p->owner == oldchan) {
1723                 p->owner = newchan;
1724         }
1725
1726         if (newchan->_state == AST_STATE_RINGING){
1727                 if (use_ast_ind == 1) {
1728                         if (option_verbose > 3)
1729                                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_fixup Calling ast_indicate\n", p->dev);
1730                         ast_indicate(newchan, AST_CONTROL_RINGING);
1731                 }
1732                 else {
1733                         if (option_verbose > 3)
1734                                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_fixup Calling vpb_indicate\n", p->dev);
1735                         vpb_indicate(newchan, AST_CONTROL_RINGING);
1736                 }
1737         }
1738
1739         res= ast_mutex_unlock(&p->lock);
1740 /*
1741         if (option_verbose > 3) ast_verbose("%s: unLOCKING in fixup [%d]\n", p->dev,res);
1742 */
1743         return 0;
1744 }
1745
1746 static int vpb_digit(struct ast_channel *ast, char digit)
1747 {
1748         struct vpb_pvt *p = (struct vpb_pvt *)ast->tech_pvt;
1749         char s[2];
1750         int res = 0;
1751
1752         if (use_ast_dtmf){
1753                 if (option_verbose > 3)
1754                         ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_digit: asked to play digit[%c] but we are using asterisk dtmf play back?!\n", p->dev, digit);
1755                 return 0;
1756         }
1757
1758 /*
1759         if (option_verbose > 3) ast_verbose("%s: LOCKING in digit \n", p->dev);
1760         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1761 */
1762         ast_mutex_lock(&p->lock);
1763
1764
1765         s[0] = digit;
1766         s[1] = '\0';
1767
1768         if (option_verbose > 3)
1769                 ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_digit: asked to play digit[%s]\n", p->dev, s);
1770
1771         ast_mutex_lock(&p->play_dtmf_lock);
1772         strncat(p->play_dtmf,s,sizeof(*p->play_dtmf));
1773         ast_mutex_unlock(&p->play_dtmf_lock);
1774
1775         res = ast_mutex_unlock(&p->lock);
1776 /*
1777         if (option_verbose > 3) ast_verbose("%s: unLOCKING in digit [%d]\n", p->dev,res);
1778 */
1779         return 0;
1780 }
1781
1782 /* Places a call out of a VPB channel */
1783 static int vpb_call(struct ast_channel *ast, char *dest, int timeout)
1784 {
1785         struct vpb_pvt *p = (struct vpb_pvt *)ast->tech_pvt;
1786         int res = 0,i;
1787         char *s = strrchr(dest, '/');
1788         char dialstring[254] = "";
1789         int tmp = 0;
1790
1791 /*
1792         if (option_verbose > 3) ast_verbose("%s: LOCKING in call \n", p->dev);
1793         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
1794 */
1795         ast_mutex_lock(&p->lock);
1796
1797         if (s)
1798                 s = s + 1;
1799         else
1800                 s = dest;
1801         strncpy(dialstring, s, sizeof(dialstring) - 1);
1802         for (i=0; dialstring[i] != '\0' ; i++) {
1803                 if ((dialstring[i] == 'w') || (dialstring[i] == 'W'))
1804                         dialstring[i] = ',';
1805                 else if ((dialstring[i] == 'f') || (dialstring[i] == 'F'))
1806                         dialstring[i] = '&';
1807         }
1808         if (option_verbose > 3)
1809                 ast_verbose(VERBOSE_PREFIX_4 "%s: starting call\n", p->dev);
1810
1811         if (ast->_state != AST_STATE_DOWN && ast->_state != AST_STATE_RESERVED) {
1812                 ast_log(LOG_WARNING, "vpb_call on %s neither down nor reserved!\n", ast->name);
1813                 tmp = ast_mutex_unlock(&p->lock);
1814 /*
1815                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp);
1816 */
1817                 return -1;
1818         }
1819         if (p->mode != MODE_FXO)  /* Station port, ring it. */
1820                 res = vpb_ring_station_async(p->handle, VPB_RING_STATION_ON,0);
1821         else {
1822                 VPB_CALL call;
1823
1824                 /* Dial must timeout or it can leave channels unuseable */
1825                 if( timeout == 0 )
1826                         timeout = TIMER_PERIOD_NOANSWER;
1827                 else
1828                         timeout = timeout * 1000; /* convert from secs to ms. */
1829
1830                 /* These timeouts are only used with call progress dialing */
1831                 call.dialtones = 1; /* Number of dialtones to get outside line */
1832                 call.dialtone_timeout = VPB_DIALTONE_WAIT; /* Wait this long for dialtone (ms) */
1833                 call.ringback_timeout = VPB_RINGWAIT; /* Wait this long for ringing after dialing (ms) */
1834                 call.inter_ringback_timeout = VPB_CONNECTED_WAIT; /* If ringing stops for this long consider it connected (ms) */
1835                 call.answer_timeout = timeout; /* Time to wait for answer after ringing starts (ms) */
1836                 memcpy( &call.tone_map,  DialToneMap, sizeof(DialToneMap) );
1837                 vpb_set_call(p->handle, &call);
1838
1839                 if (option_verbose > 1)
1840                         ast_verbose(VERBOSE_PREFIX_2 "%s: Calling %s on %s \n",p->dev, dialstring, ast->name);
1841
1842                 if (option_verbose > 2) {
1843                         int j;
1844                         ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s %d/%dms/%dms/%dms/%dms\n", p->dev
1845                                 , ast->name, call.dialtones, call.dialtone_timeout
1846                                 , call.ringback_timeout, call.inter_ringback_timeout
1847                                 , call.answer_timeout );
1848                         for( j=0; !call.tone_map[j].terminate; j++ )
1849                                 ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s tone %d->%d\n", p->dev,
1850                                         ast->name, call.tone_map[j].tone_id, call.tone_map[j].call_id);
1851                 }
1852
1853                 if (option_verbose > 3)
1854                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
1855                 vpb_disable_event(p->handle, VPB_MDROP);
1856                 vpb_sethook_sync(p->handle,VPB_OFFHOOK);
1857                 p->state=VPB_STATE_OFFHOOK;
1858
1859                 #ifndef DIAL_WITH_CALL_PROGRESS
1860                 vpb_sleep(300);
1861                 if (option_verbose > 3)
1862                                 ast_verbose("%s: Enabling Loop Drop detection\n",p->dev);
1863                 vpb_enable_event(p->handle, VPB_MDROP);
1864                 res = vpb_dial_async(p->handle, dialstring);
1865                 #else
1866                 if (option_verbose > 3)
1867                                 ast_verbose("%s: Enabling Loop Drop detection\n",p->dev);
1868                 vpb_enable_event(p->handle, VPB_MDROP);
1869                 res = vpb_call_async(p->handle, dialstring);
1870                 #endif
1871
1872                 if (res != VPB_OK) {
1873                         ast_log(LOG_DEBUG, "Call on %s to %s failed: %s\n", ast->name, s, vpb_strerror(res));
1874                         res = -1;
1875                 } else
1876                         res = 0;
1877         }
1878
1879         if (option_verbose > 2)
1880                 ast_verbose(VERBOSE_PREFIX_3 "%s: VPB Calling %s [t=%d] on %s returned %d\n",p->dev , s, timeout, ast->name, res);
1881         if (res == 0) {
1882                 ast_setstate(ast, AST_STATE_RINGING);
1883                 ast_queue_control(ast,AST_CONTROL_RINGING);
1884         }
1885
1886         if (!p->readthread){
1887                 ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
1888         }
1889
1890         tmp = ast_mutex_unlock(&p->lock);
1891 /*
1892         if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp);
1893 */
1894         return res;
1895 }
1896
1897 static int vpb_hangup(struct ast_channel *ast)
1898 {
1899         struct vpb_pvt *p = (struct vpb_pvt *)ast->tech_pvt;
1900         VPB_EVENT je;
1901         char str[VPB_MAX_STR];
1902         int res =0 ;
1903
1904 /*
1905         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev);
1906         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);
1907         if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self());
1908         ast_mutex_lock(&p->lock);
1909 */
1910         if (option_verbose > 1)
1911                 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup requested\n", ast->name);
1912
1913         if (!ast->tech || !ast->tech_pvt) {
1914                 ast_log(LOG_WARNING, "%s: channel not connected?\n", ast->name);
1915                 res = ast_mutex_unlock(&p->lock);
1916 /*
1917                 if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res);
1918 */
1919                 /* Free up ast dsp if we have one */
1920                 if ((use_ast_dtmfdet)&&(p->vad)) {
1921                         ast_dsp_free(p->vad);
1922                         p->vad = NULL;
1923                 }
1924                 return 0;
1925         }
1926
1927
1928
1929         /* Stop record */
1930         p->stopreads = 1;
1931         if( p->readthread ){
1932                 pthread_join(p->readthread, NULL);
1933                 if(option_verbose>3)
1934                         ast_verbose( VERBOSE_PREFIX_4 "%s: stopped record thread \n",ast->name);
1935         }
1936
1937         /* Stop play */
1938         if (p->lastoutput != -1) {
1939                 if(option_verbose>1)
1940                         ast_verbose( VERBOSE_PREFIX_2 "%s: Ending play mode \n",ast->name);
1941                 vpb_play_terminate(p->handle);
1942                 ast_mutex_lock(&p->play_lock); {
1943                         vpb_play_buf_finish(p->handle);
1944                 } ast_mutex_unlock(&p->play_lock);
1945         }
1946
1947         if(option_verbose>3)
1948                 ast_verbose( VERBOSE_PREFIX_4 "%s: Setting state down\n",ast->name);
1949         ast_setstate(ast,AST_STATE_DOWN);
1950
1951
1952 /*
1953         if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev);
1954         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);
1955         if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self());
1956 */
1957         ast_mutex_lock(&p->lock);
1958
1959         if (p->mode != MODE_FXO) {
1960                 /* station port. */
1961                 vpb_ring_station_async(p->handle, VPB_RING_STATION_OFF,0);
1962                 if(p->state!=VPB_STATE_ONHOOK){
1963                         /* This is causing a "dial end" "play tone" loop
1964                         playtone(p->handle, &Busytone);
1965                         p->state = VPB_STATE_PLAYBUSY;
1966                         if(option_verbose>4)
1967                                 ast_verbose( VERBOSE_PREFIX_4 "%s: Station offhook[%d], playing busy tone\n",
1968                                                                 ast->name,p->state);
1969                         */
1970                 }
1971                 else {
1972                         stoptone(p->handle);
1973                 }
1974         } else {
1975                 stoptone(p->handle); /* Terminates any dialing */
1976                 vpb_sethook_sync(p->handle, VPB_ONHOOK);
1977                 p->state=VPB_STATE_ONHOOK;
1978         }
1979         while (VPB_OK==vpb_get_event_ch_async(p->handle,&je)){
1980                 if(option_verbose>3) {
1981                         vpb_translate_event(&je, str);
1982                         ast_verbose( VERBOSE_PREFIX_4 "%s: Flushing event [%d]=>%s\n",ast->name,je.type,str);
1983                 }
1984         }
1985
1986         p->readthread = 0;
1987         p->lastoutput = -1;
1988         p->lastinput = -1;
1989         p->last_ignore_dtmf = 1;
1990         p->ext[0]  = 0;
1991         p->dialtone = 0;
1992
1993         p->owner = NULL;
1994         ast->tech_pvt=NULL;
1995
1996         /* Free up ast dsp if we have one */
1997         if ((use_ast_dtmfdet)&&(p->vad)) {
1998                 ast_dsp_free(p->vad);
1999                 p->vad = NULL;
2000         }
2001
2002         ast_mutex_lock(&usecnt_lock); {
2003                 usecnt--;
2004         } ast_mutex_unlock(&usecnt_lock);
2005         ast_update_use_count();
2006
2007         if (option_verbose > 1)
2008                 ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup complete\n", ast->name);
2009
2010         restart_monitor();
2011 /*
2012         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);
2013 */
2014         res = ast_mutex_unlock(&p->lock);
2015 /*
2016         if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res);
2017         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);
2018 */
2019         return 0;
2020 }
2021
2022 static int vpb_answer(struct ast_channel *ast)
2023 {
2024         struct vpb_pvt *p = (struct vpb_pvt *)ast->tech_pvt;
2025         VPB_EVENT je;
2026         int ret;
2027         int res = 0;
2028 /*
2029         if (option_verbose > 3) ast_verbose("%s: LOCKING in answer \n", p->dev);
2030         if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
2031 */
2032         ast_mutex_lock(&p->lock);
2033
2034         if (option_verbose > 3)
2035                         ast_verbose(VERBOSE_PREFIX_4 "%s: Answering channel\n",p->dev);
2036
2037         if (p->mode == MODE_FXO){
2038                 if (option_verbose > 3)
2039                                 ast_verbose("%s: Disabling Loop Drop detection\n",p->dev);
2040                 vpb_disable_event(p->handle, VPB_MDROP);
2041         }
2042
2043         if (ast->_state != AST_STATE_UP) {
2044                 if (p->mode == MODE_FXO){
2045                         vpb_sethook_sync(p->handle, VPB_OFFHOOK);
2046                         p->state=VPB_STATE_OFFHOOK;
2047 /*                      vpb_sleep(500);
2048                         ret = vpb_get_event_ch_async(p->handle,&je);
2049                         if ((ret == VPB_OK)&&((je.type != VPB_DROP)&&(je.type != VPB_RING))){
2050                                 if (option_verbose > 3){
2051                                                 ast_verbose(VERBOSE_PREFIX_4 "%s: Answer collected a wrong event!!\n",p->dev);
2052                                 }
2053                                 vpb_put_event(&je);
2054                         }
2055 */
2056                 }
2057                 ast_setstate(ast, AST_STATE_UP);
2058
2059                 if(option_verbose>1)
2060 /*
2061                         ast_verbose( VERBOSE_PREFIX_2 "%s: Answered call from %s on %s [%s]\n", p->dev,
2062                                         p->owner->callerid, ast->name,(p->mode == MODE_FXO)?"FXO":"FXS");
2063 */
2064                         ast_verbose( VERBOSE_PREFIX_2 "%s: Answered call on %s [%s]\n", p->dev,
2065                                          ast->name,(p->mode == MODE_FXO)?"FXO":"FXS");
2066
2067                 ast->rings = 0;
2068                 if( !p->readthread ){
2069         /*              res = ast_mutex_unlock(&p->lock); */
2070         /*              ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); */
2071                         ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p);
2072                 } else {
2073                         if(option_verbose>3)
2074                                 ast_verbose(VERBOSE_PREFIX_4 "%s: Record thread already running!!\n",p->dev);
2075                 }
2076         } else {
2077                 if(option_verbose>3) {
2078                         ast_verbose(VERBOSE_PREFIX_4 "%s: Answered state is up\n",p->dev);
2079                 }
2080         /*      res = ast_mutex_unlock(&p->lock); */
2081         /*      ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); */
2082         }
2083         vpb_sleep(500);
2084         if (p->mode == MODE_FXO){
2085                 if (option_verbose > 3)
2086                                 ast_verbose("%s: Re-enabling Loop Drop detection\n",p->dev);
2087                 vpb_enable_event(p->handle,VPB_MDROP);
2088         }
2089         res = ast_mutex_unlock(&p->lock);
2090 /*
2091         if(option_verbose>3) ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res);
2092 */
2093         return 0;
2094 }
2095
2096 static struct ast_frame  *vpb_read(struct ast_channel *ast)
2097 {
2098         struct vpb_pvt *p = (struct vpb_pvt *)ast->tech_pvt;
2099         static struct ast_frame f = {AST_FRAME_NULL};
2100
2101         f.src = (char *)type;
2102         ast_log(LOG_NOTICE, "%s: vpb_read: should never be called!\n", p->dev);
2103         ast_verbose("%s: vpb_read: should never be called!\n", p->dev);
2104
2105         return &f;
2106 }
2107
2108 static inline int ast2vpbformat(int ast_format)
2109 {
2110         switch(ast_format) {
2111                 case AST_FORMAT_ALAW:
2112                         return VPB_ALAW;
2113                 case AST_FORMAT_SLINEAR:
2114                         return VPB_LINEAR;
2115                 case AST_FORMAT_ULAW:
2116                         return VPB_MULAW;
2117                 case AST_FORMAT_ADPCM:
2118                         return VPB_OKIADPCM;
2119                 default:
2120                         return -1;
2121         }
2122 }
2123
2124 static inline char * ast2vpbformatname(int ast_format)
2125 {
2126         switch(ast_format) {
2127                 case AST_FORMAT_ALAW:
2128                         return "AST_FORMAT_ALAW:VPB_ALAW";
2129                 case AST_FORMAT_SLINEAR:
2130                         return "AST_FORMAT_SLINEAR:VPB_LINEAR";
2131                 case AST_FORMAT_ULAW:
2132                         return "AST_FORMAT_ULAW:VPB_MULAW";
2133                 case AST_FORMAT_ADPCM:
2134                         return "AST_FORMAT_ADPCM:VPB_OKIADPCM";
2135                 default:
2136                         return "UNKN:UNKN";
2137         }
2138 }
2139
2140 static inline int astformatbits(int ast_format)
2141 {
2142         switch(ast_format) {
2143                 case AST_FORMAT_ALAW:
2144                 case AST_FORMAT_ULAW:
2145                         return 8;
2146                 case AST_FORMAT_SLINEAR:
2147                         return 16;
2148                 case AST_FORMAT_ADPCM:
2149                         return 4;
2150                 default:
2151                         return 8;
2152         }
2153 }
2154
2155 int a_gain_vector(float g, short *v, int n)
2156 {
2157         int i;
2158         float tmp;
2159         for ( i = 0; i<n; i++) {
2160                 tmp = g*v[i];
2161                 if (tmp > 32767.0)
2162                         tmp = 32767.0;
2163                 if (tmp < -32768.0)
2164                         tmp = -32768.0;
2165                 v[i] = (short)tmp;
2166         }
2167         return(i);
2168 }
2169
2170 /* Writes a frame of voice data to a VPB channel */
2171 static int vpb_write(struct ast_channel *ast, struct ast_frame *frame)
2172 {
2173         struct vpb_pvt *p = (struct vpb_pvt *)ast->tech_pvt;
2174         int res = 0, fmt = 0;
2175         struct timeval play_buf_time_start,play_buf_time_finish;
2176 /*      ast_mutex_lock(&p->lock); */
2177         if(option_verbose>5)
2178                 ast_verbose("%s: vpb_write: Writing to channel\n", p->dev);
2179
2180         if (frame->frametype != AST_FRAME_VOICE) {
2181                 if(option_verbose>3)
2182                         ast_verbose("%s: vpb_write: Don't know how to handle from type %d\n", ast->name, frame->frametype);
2183 /*              ast_mutex_unlock(&p->lock); */
2184                 return 0;
2185         } else if (ast->_state != AST_STATE_UP) {
2186                 if(option_verbose>3)
2187                         ast_verbose("%s: vpb_write: Attempt to Write frame type[%d]subclass[%d] on not up chan(state[%d])\n",ast->name, frame->frametype, frame->subclass,ast->_state);
2188                 p->lastoutput = -1;
2189 /*              ast_mutex_unlock(&p->lock); */
2190                 return 0;
2191         }
2192 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame type..\n", p->dev); */
2193
2194         fmt = ast2vpbformat(frame->subclass);
2195         if (fmt < 0) {
2196                 ast_log(LOG_WARNING, "%s: vpb_write: Cannot handle frames of %d format!\n",ast->name, frame->subclass);
2197                 return -1;
2198         }
2199 /*
2200         ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame format..\n", p->dev);
2201 */
2202
2203         ast_mutex_lock(&p->play_lock);
2204
2205 /*
2206         ast_log(LOG_DEBUG, "%s: vpb_write: Got play lock..\n", p->dev);
2207 */
2208
2209         /* Check if we have set up the play_buf */
2210         if (p->lastoutput == -1) {
2211                 vpb_play_buf_start(p->handle, fmt);
2212                 if(option_verbose>1) {
2213                         ast_verbose("%s: vpb_write: Starting play mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(frame->subclass));
2214                 }
2215         } else if (p->lastoutput != fmt) {
2216                 vpb_play_buf_finish(p->handle);
2217                 vpb_play_buf_start(p->handle, fmt);
2218                 if(option_verbose>1)
2219                         ast_verbose("%s: vpb_write: Changed play format (%d=>%d)\n",p->dev,p->lastoutput,fmt);
2220         }
2221         p->lastoutput = fmt;
2222
2223
2224
2225         /* Apply extra gain ! */
2226         if( p->txswgain > MAX_VPB_GAIN )
2227                 a_gain_vector(p->txswgain - MAX_VPB_GAIN , (short*)frame->data, frame->datalen/sizeof(short));
2228
2229 /*      ast_log(LOG_DEBUG, "%s: vpb_write: Applied gain..\n", p->dev); */
2230
2231 /*      gettimeofday(&tv, NULL); */
2232 /*      return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000); */
2233
2234         if ((p->read_state == 1)&&(p->play_buf_time<5)){
2235         gettimeofday(&play_buf_time_start,NULL);
2236         res = vpb_play_buf_sync(p->handle, (char*)frame->data, frame->datalen);
2237         if( (res == VPB_OK) && (option_verbose > 5) ) {
2238                 short * data = (short*)frame->data;
2239                 ast_verbose("%s: vpb_write: Wrote chan (codec=%d) %d %d\n", p->dev, fmt, data[0],data[1]);
2240         }
2241         gettimeofday(&play_buf_time_finish,NULL);
2242         if (play_buf_time_finish.tv_sec == play_buf_time_start.tv_sec){
2243                 p->play_buf_time=(int)((play_buf_time_finish.tv_usec-play_buf_time_start.tv_usec)/1000);
2244 /*              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); */
2245         }
2246         else {
2247                 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);
2248         }
2249 /*      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); */
2250         }
2251         else {
2252                 p->chuck_count++;
2253                 ast_log(LOG_DEBUG, "%s: vpb_write: Tossed data away, tooooo much data!![%d]\n", p->dev,p->chuck_count);
2254                 p->play_buf_time=0;
2255         }
2256
2257         ast_mutex_unlock(&p->play_lock);
2258 /*      ast_mutex_unlock(&p->lock); */
2259         if(option_verbose>5)
2260                 ast_verbose("%s: vpb_write: Done Writing to channel\n", p->dev);
2261         return 0;
2262 }
2263
2264 /* Read monitor thread function. */
2265 static void *do_chanreads(void *pvt)
2266 {
2267         struct vpb_pvt *p = (struct vpb_pvt *)pvt;
2268         struct ast_frame *fr = &p->fr;
2269         char *readbuf = ((char *)p->buf) + AST_FRIENDLY_OFFSET;
2270         int bridgerec = 0;
2271         int afmt, readlen, res, fmt, trycnt=0;
2272         int ignore_dtmf;
2273         char * getdtmf_var = NULL;
2274
2275         fr->frametype = AST_FRAME_VOICE;
2276         fr->src = (char *)type;
2277         fr->mallocd = 0;
2278         fr->delivery.tv_sec = 0;
2279         fr->delivery.tv_usec = 0;
2280         fr->samples = VPB_SAMPLES;
2281         fr->offset = AST_FRIENDLY_OFFSET;
2282         memset(p->buf, 0, sizeof p->buf);
2283
2284         if (option_verbose > 2) {
2285                 ast_verbose("%s: chanreads: starting thread\n", p->dev);
2286         }
2287         ast_mutex_lock(&p->record_lock);
2288
2289         p->stopreads = 0;
2290         p->read_state = 1;
2291         while (!p->stopreads && p->owner) {
2292
2293                 if (option_verbose > 4)
2294                         ast_verbose("%s: chanreads: Starting cycle ...\n", p->dev);
2295                 if (option_verbose > 4)
2296                         ast_verbose("%s: chanreads: Checking bridge \n", p->dev);
2297                 if (p->bridge) {
2298                         if (p->bridge->c0 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_0))
2299                                 bridgerec = 1;
2300                         else if (p->bridge->c1 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_1))
2301                                 bridgerec = 1;
2302                         else
2303                                 bridgerec = 0;
2304                 } else {
2305                         if (option_verbose > 4)
2306                                 ast_verbose("%s: chanreads: No native bridge.\n", p->dev);
2307                         if (p->owner->_bridge){
2308                                 if (option_verbose > 4){
2309                                         ast_verbose("%s: chanreads: Got Asterisk bridge with [%s].\n", p->dev,p->owner->_bridge->name);
2310                                 }
2311                                 bridgerec = 1;
2312                         }
2313                         else {
2314                                 bridgerec = 0;
2315                         }
2316                 }
2317
2318 /*              if ( (p->owner->_state != AST_STATE_UP) || !bridgerec) */
2319                 if ( (p->owner->_state != AST_STATE_UP) )
2320                 {
2321                         if (option_verbose > 4) {
2322                                 if (p->owner->_state != AST_STATE_UP)
2323                                         ast_verbose("%s: chanreads: Im not up[%d]\n", p->dev,p->owner->_state);
2324                                 else
2325                                         ast_verbose("%s: chanreads: No bridgerec[%d]\n", p->dev,bridgerec);
2326                         }
2327                         vpb_sleep(10);
2328                         continue;
2329                 }
2330
2331                 /* Voicetronix DTMF detection can be triggered off ordinary speech
2332                  * This leads to annoying beeps during the conversation
2333                  * Avoid this problem by just setting VPB_GETDTMF when you want to listen for DTMF
2334                  */
2335                 /* ignore_dtmf = 1; */
2336                 ignore_dtmf = 0; /* set this to 1 to turn this feature on */
2337                 getdtmf_var = pbx_builtin_getvar_helper(p->owner,"VPB_GETDTMF");
2338                 if( getdtmf_var && ( strcasecmp( getdtmf_var, "yes" ) == 0 ) )
2339                         ignore_dtmf = 0;
2340
2341                 if(( ignore_dtmf != p->last_ignore_dtmf ) &&(!use_ast_dtmfdet)){
2342                         if(option_verbose>1)
2343                                 ast_verbose( VERBOSE_PREFIX_2 "%s:Now %s DTMF \n",
2344                                         p->dev, ignore_dtmf ? "ignoring" : "listening for");
2345                         vpb_set_event_mask(p->handle, ignore_dtmf ? VPB_EVENTS_NODTMF : VPB_EVENTS_ALL );
2346                 }
2347                 p->last_ignore_dtmf = ignore_dtmf;
2348
2349                 /* Play DTMF digits here to avoid problem you get if playing a digit during
2350                  * a record operation
2351                  */
2352                 if (option_verbose > 5) {
2353                         ast_verbose("%s: chanreads: Checking dtmf's \n", p->dev);
2354                 }
2355                 ast_mutex_lock(&p->play_dtmf_lock);
2356                 if( p->play_dtmf[0] ) {
2357                         /* Try to ignore DTMF event we get after playing digit */
2358                         /* This DTMF is played by asterisk and leads to an annoying trailing beep on CISCO phones */
2359                         if( !ignore_dtmf)
2360                                 vpb_set_event_mask(p->handle, VPB_EVENTS_NODTMF );
2361                         if (p->bridge == NULL){
2362                                 vpb_dial_sync(p->handle,p->play_dtmf);
2363                                 if(option_verbose>1)
2364                                         ast_verbose( VERBOSE_PREFIX_2 "%s: chanreads: Played DTMF %s\n",p->dev,p->play_dtmf);
2365                         }
2366                         else {
2367                                 if (option_verbose > 1)
2368                                         ast_verbose(VERBOSE_PREFIX_2 "%s: chanreads: Not playing DTMF frame on native bridge\n", p->dev);
2369                         }
2370                         p->play_dtmf[0] = '\0';
2371                         ast_mutex_unlock(&p->play_dtmf_lock);
2372                         vpb_sleep(700); /* Long enough to miss echo and DTMF event */
2373                         if( !ignore_dtmf)
2374                                 vpb_set_event_mask(p->handle, VPB_EVENTS_ALL );
2375                         continue;
2376                 }
2377                 ast_mutex_unlock(&p->play_dtmf_lock);
2378
2379 /*              afmt = (p->owner) ? p->owner->rawreadformat : AST_FORMAT_SLINEAR; */
2380                 if (p->owner){
2381                         afmt = p->owner->rawreadformat;
2382 /*                      ast_log(LOG_DEBUG,"%s: Record using owner format [%s]\n", p->dev, ast2vpbformatname(afmt)); */
2383                 }
2384                 else {
2385                         afmt = AST_FORMAT_SLINEAR;
2386 /*                      ast_log(LOG_DEBUG,"%s: Record using default format [%s]\n", p->dev, ast2vpbformatname(afmt)); */
2387                 }
2388                 fmt = ast2vpbformat(afmt);
2389                 if (fmt < 0) {
2390                         ast_log(LOG_WARNING,"%s: Record failure (unsupported format %d)\n", p->dev, afmt);
2391                         return NULL;
2392                 }
2393                 readlen = VPB_SAMPLES * astformatbits(afmt) / 8;
2394
2395                 if (p->lastinput == -1) {
2396                         vpb_record_buf_start(p->handle, fmt);
2397                         vpb_reset_record_fifo_alarm(p->handle);
2398                         if(option_verbose>1)
2399                                 ast_verbose( VERBOSE_PREFIX_2 "%s: Starting record mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(afmt));
2400                 } else if (p->lastinput != fmt) {
2401                         vpb_record_buf_finish(p->handle);
2402                         vpb_record_buf_start(p->handle, fmt);
2403                         if(option_verbose>1)
2404                                 ast_verbose( VERBOSE_PREFIX_2 "%s: Changed record format (%d=>%d)\n",p->dev,p->lastinput,fmt);
2405                 }
2406                 p->lastinput = fmt;
2407
2408                 /* Read only if up and not bridged, or a bridge for which we can read. */
2409                 if (option_verbose > 5) {
2410                         ast_verbose("%s: chanreads: getting buffer!\n", p->dev);
2411                 }
2412                 if( (res = vpb_record_buf_sync(p->handle, readbuf, readlen) ) == VPB_OK ) {
2413                         if (option_verbose > 5) {
2414                                 ast_verbose("%s: chanreads: got buffer!\n", p->dev);
2415                         }
2416                         /* Apply extra gain ! */
2417                         if( p->rxswgain > MAX_VPB_GAIN )
2418                                 a_gain_vector(p->rxswgain - MAX_VPB_GAIN , (short*)readbuf, readlen/sizeof(short));
2419                         if (option_verbose > 5) {
2420                                 ast_verbose("%s: chanreads: applied gain\n", p->dev);
2421                         }
2422
2423                         fr->subclass = afmt;
2424                         fr->data = readbuf;
2425                         fr->datalen = readlen;
2426                         fr->frametype = AST_FRAME_VOICE;
2427
2428                         if ((use_ast_dtmfdet)&&(p->vad)){
2429                                 fr = ast_dsp_process(p->owner,p->vad,fr);
2430                                 if (fr && (fr->frametype == AST_FRAME_DTMF))
2431                                         ast_log(LOG_DEBUG, "%s: chanreads: Detected DTMF '%c'\n",p->dev, fr->subclass);
2432                                 if (fr->subclass == 'm'){
2433                                         /* conf mute request */
2434                                         fr->frametype = AST_FRAME_NULL;
2435                                         fr->subclass = 0;
2436                                 }
2437                                 else if (fr->subclass == 'u'){
2438                                         /* Unmute */
2439                                         fr->frametype = AST_FRAME_NULL;
2440                                         fr->subclass = 0;
2441                                 }
2442                                 else if (fr->subclass == 'f'){
2443                                 }
2444                         }
2445                         /* Using trylock here to prevent deadlock when channel is hungup
2446                          * (ast_hangup() immediately gets lock)
2447                          */
2448                         if (p->owner && !p->stopreads ) {
2449                                 if (option_verbose > 5) {
2450                                         ast_verbose("%s: chanreads: queueing buffer on read frame q (state[%d])\n", p->dev,p->owner->_state);
2451                                 }
2452                                 do {
2453                                         res = ast_mutex_trylock(&p->owner->lock);
2454                                         trycnt++;
2455                                 } while((res !=0)&&(trycnt<300));
2456                                 if (res==0)  {
2457                                         ast_queue_frame(p->owner, fr);
2458                                         ast_mutex_unlock(&p->owner->lock);
2459                                 } else {
2460                                         if (option_verbose > 4)
2461                                                 ast_verbose("%s: chanreads: Couldnt get lock after %d tries!\n", p->dev,trycnt);
2462                                 }
2463                                 trycnt=0;
2464
2465 /*
2466                                 res = ast_mutex_trylock(&p->owner->lock);
2467                                 if (res==0)  {
2468                                         ast_queue_frame(p->owner, fr);
2469                                         ast_mutex_unlock(&p->owner->lock);
2470                                 } else {
2471                                         if (res == EINVAL )
2472                                                 if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res);
2473                                         else if (res == EBUSY )
2474                                                 if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res);
2475                                         while(res !=0){
2476                                         res = ast_mutex_trylock(&p->owner->lock);
2477                                         }
2478                                         if (res==0)  {
2479                                                 ast_queue_frame(p->owner, fr);
2480                                                 ast_mutex_unlock(&p->owner->lock);
2481                                         }
2482                                         else {
2483                                                 if (res == EINVAL )
2484                                                         if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res);
2485                                                 else if (res == EBUSY )
2486                                                         if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res);
2487                                                 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);
2488                                         }
2489                                 }
2490 */
2491                                 if (option_verbose > 6) {
2492                                         short * data = (short*)readbuf;
2493                                         ast_verbose("%s: Read channel (codec=%d) %d %d\n", p->dev, fmt, data[0], data[1] );
2494                                 }
2495                         }
2496                         else {
2497                                 if (option_verbose > 4) {
2498                                         ast_verbose("%s: p->stopreads[%d] p->owner[%p]\n", p->dev, p->stopreads,(void *)p->owner);
2499                                 }
2500                         }
2501                 } else {
2502                         ast_log(LOG_WARNING,"%s: Record failure (%s)\n", p->dev, vpb_strerror(res));
2503                         vpb_record_buf_finish(p->handle);
2504                         vpb_record_buf_start(p->handle, fmt);
2505                 }
2506                 if (option_verbose > 4)
2507                         ast_verbose("%s: chanreads: Finished cycle...\n", p->dev);
2508         }
2509         p->read_state=0;
2510
2511         /* When stopreads seen, go away! */
2512         vpb_record_buf_finish(p->handle);
2513         p->read_state=0;
2514         ast_mutex_unlock(&p->record_lock);
2515
2516         if (option_verbose > 1)
2517                 ast_verbose(VERBOSE_PREFIX_2 "%s: Ending record mode (%d/%s)\n",
2518                          p->dev, p->stopreads, p->owner? "yes" : "no");
2519         return NULL;
2520 }
2521
2522 static struct ast_channel *vpb_new(struct vpb_pvt *me, int state, char *context)
2523 {
2524         struct ast_channel *tmp;
2525         char cid_num[256];
2526         char cid_name[256];
2527
2528         if (me->owner) {
2529             ast_log(LOG_WARNING, "Called vpb_new on owned channel (%s) ?!\n", me->dev);
2530             return NULL;
2531         }
2532         if (option_verbose > 3)
2533                 ast_verbose("%s: New call for context [%s]\n",me->dev,context);
2534
2535         tmp = ast_channel_alloc(1);
2536         if (tmp) {
2537                 if (use_ast_ind == 1){
2538                         tmp->tech = &vpb_tech_indicate;
2539                 }
2540                 else {
2541                         tmp->tech = &vpb_tech;
2542                 }
2543
2544                 strncpy(tmp->name, me->dev, sizeof(tmp->name) - 1);
2545                 tmp->type = type;
2546
2547                 tmp->callgroup = me->callgroup;
2548                 tmp->pickupgroup = me->pickupgroup;
2549
2550                 /* Linear is the preferred format. Although Voicetronix supports other formats
2551                  * they are all converted to/from linear in the vpb code. Best for us to use
2552                  * linear since we can then adjust volume in this modules.
2553                  */
2554                 tmp->nativeformats = prefformat;
2555                 tmp->rawreadformat = AST_FORMAT_SLINEAR;
2556                 tmp->rawwriteformat =  AST_FORMAT_SLINEAR;
2557                 ast_setstate(tmp, state);
2558                 if (state == AST_STATE_RING) {
2559                         tmp->rings = 1;
2560                         cid_name[0] = '\0';
2561                         cid_num[0] = '\0';
2562                         ast_callerid_split(me->callerid, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
2563                         ast_set_callerid(tmp, cid_num, cid_name, cid_num);
2564                 }
2565                 tmp->tech_pvt = me;
2566
2567                 strncpy(tmp->context, context, sizeof(tmp->context)-1);
2568                 if (strlen(me->ext))
2569                         strncpy(tmp->exten, me->ext, sizeof(tmp->exten)-1);
2570                 else
2571                         strncpy(tmp->exten, "s",  sizeof(tmp->exten) - 1);
2572                 if (strlen(me->language))
2573                         strncpy(tmp->language, me->language, sizeof(tmp->language)-1);
2574
2575                 me->owner = tmp;
2576
2577                 me->bridge = NULL;
2578                 me->lastoutput = -1;
2579                 me->lastinput = -1;
2580                 me->last_ignore_dtmf = 1;
2581                 me->readthread = 0;
2582                 me->play_dtmf[0] = '\0';
2583                 me->faxhandled =0;
2584
2585                 me->lastgrunt  = get_time_in_ms(); /* Assume at least one grunt tone seen now. */
2586
2587                 ast_mutex_lock(&usecnt_lock);
2588                 usecnt++;
2589                 ast_mutex_unlock(&usecnt_lock);
2590                 ast_update_use_count();
2591                 if (state != AST_STATE_DOWN) {
2592                         if ((me->mode != MODE_FXO)&&(state != AST_STATE_UP)){
2593                                 vpb_answer(tmp);
2594                         }
2595                         if (ast_pbx_start(tmp)) {
2596                                 ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name);
2597                                 ast_hangup(tmp);
2598                         }
2599                 }
2600         } else {
2601                 ast_log(LOG_WARNING, "Unable to allocate channel structure\n");
2602         }
2603         return tmp;
2604 }
2605
2606 static struct ast_channel *vpb_request(const char *type, int format, void *data, int *cause)
2607 {
2608         int oldformat;
2609         struct vpb_pvt *p;
2610         struct ast_channel *tmp = NULL;
2611         char *name = strdup(data ? (char *)data : "");
2612         char *s, *sepstr;
2613         int group=-1;
2614
2615         oldformat = format;
2616         format &= prefformat;
2617         if (!format) {
2618                 ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat);
2619                 return NULL;
2620         }
2621
2622         sepstr = name;
2623         s = strsep(&sepstr, "/"); /* Handle / issues */
2624         if (!s)
2625                 s = "";
2626         /* Check if we are looking for a group */
2627         if (toupper(name[0]) == 'G' || toupper(name[0])=='R') {
2628                 group=atoi(name+1);
2629         }
2630         /* Search for an unowned channel */
2631         ast_mutex_lock(&iflock); {
2632                 p = iflist;
2633                 while(p) {
2634                         if (group == -1){
2635                                 if (strncmp(s, p->dev + 4, sizeof p->dev) == 0) {
2636                                         if (!p->owner) {
2637                                                 tmp = vpb_new(p, AST_STATE_DOWN, p->context);
2638                                                 break;
2639                                         }
2640                                 }
2641                         }
2642                         else {
2643                                 if ((p->group == group) && (!p->owner)) {
2644                                         tmp = vpb_new(p, AST_STATE_DOWN, p->context);
2645                                         break;
2646                                 }
2647                         }
2648                         p = p->next;
2649                 }
2650         } ast_mutex_unlock(&iflock);
2651
2652
2653         if (option_verbose > 1)
2654                 ast_verbose(VERBOSE_PREFIX_2 " %s requested, got: [%s]\n",
2655                 name, tmp ? tmp->name : "None");
2656
2657         free(name);
2658
2659         restart_monitor();
2660         return tmp;
2661 }
2662
2663 static float parse_gain_value(char *gain_type, char *value)
2664 {
2665         float gain;
2666
2667         /* try to scan number */
2668         if (sscanf(value, "%f", &gain) != 1)
2669         {
2670                 ast_log(LOG_ERROR, "Invalid %s value '%s' in '%s' config\n", value, gain_type, config);
2671                 return DEFAULT_GAIN;
2672         }
2673
2674
2675         /* percentage? */
2676         /*if (value[strlen(value) - 1] == '%') */
2677         /*      return gain / (float)100; */
2678
2679         return gain;
2680 }
2681
2682 int load_module()
2683 {
2684         struct ast_config *cfg;
2685         struct ast_variable *v;
2686         struct vpb_pvt *tmp;
2687         int board = 0, group = 0;
2688         ast_group_t     callgroup = 0;
2689         ast_group_t     pickupgroup = 0;
2690         int mode = MODE_IMMEDIATE;
2691         float txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN;
2692         float txswgain = 0, rxswgain = 0;
2693         int got_gain=0;
2694         int first_channel = 1;
2695         int echo_cancel = DEFAULT_ECHO_CANCEL;
2696         int error = 0; /* Error flag */
2697         int bal1 = -1; /* Special value - means do not set */
2698         int bal2 = -1;
2699         int bal3 = -1;
2700         char * callerid = NULL;
2701
2702         cfg = ast_config_load(config);
2703
2704         /* We *must* have a config file otherwise stop immediately */
2705         if (!cfg) {
2706                 ast_log(LOG_ERROR, "Unable to load config %s\n", config);
2707                 return -1;
2708         }
2709
2710         vpb_seterrormode(VPB_ERROR_CODE);
2711
2712         ast_mutex_lock(&iflock); {
2713                 v = ast_variable_browse(cfg, "general");
2714                 while (v){
2715                         if (strcasecmp(v->name, "cards") == 0) {
2716                                 ast_log(LOG_NOTICE,"VPB Driver configured to use [%d] cards\n",atoi(v->value));
2717                         }
2718                         else if (strcasecmp(v->name, "indication") == 0) {
2719                                 use_ast_ind = 1;
2720                                 ast_log(LOG_NOTICE,"VPB driver using Asterisk Indication functions!\n");
2721                         }
2722                         else if (strcasecmp(v->name, "break-for-dtmf") == 0) {
2723                                 if (ast_true(v->value)){
2724                                         break_for_dtmf = 1;
2725                                 }
2726                                 else {
2727                                         break_for_dtmf = 0;
2728                                         ast_log(LOG_NOTICE,"VPB driver not stopping for DTMF's in native bridge\n");
2729                                 }
2730                         }
2731                         else if (strcasecmp(v->name, "ast-dtmf") == 0) {
2732                                 use_ast_dtmf = 1;
2733                                 ast_log(LOG_NOTICE,"VPB driver using Asterisk DTMF play functions!\n");
2734                         }
2735                         else if (strcasecmp(v->name, "ast-dtmf-det") == 0) {
2736                                 use_ast_dtmfdet = 1;
2737                                 ast_log(LOG_NOTICE,"VPB driver using Asterisk DTMF detection functions!\n");
2738                         }
2739                         else if (strcasecmp(v->name, "relaxdtmf") == 0) {
2740                                 relaxdtmf = 1;
2741                                 ast_log(LOG_NOTICE,"VPB driver using Relaxed DTMF with Asterisk DTMF detections functions!\n");
2742                         }
2743                         else if (strcasecmp(v->name, "ecsuppthres") ==0) {
2744                                 ec_supp_threshold = atoi(v->value);
2745                         }
2746                         else if (strcasecmp(v->name, "dtmfidd") ==0) {
2747                                 dtmf_idd = atoi(v->value);
2748                                 ast_log(LOG_NOTICE,"VPB Driver setting DTMF IDD to [%d]ms\n",dtmf_idd);
2749                         }
2750                         v = v->next;
2751                 }
2752
2753                 v = ast_variable_browse(cfg, "interfaces");
2754                 while(v) {
2755                         /* Create the interface list */
2756                         if (strcasecmp(v->name, "board") == 0) {
2757                                 board = atoi(v->value);
2758                         } else  if (strcasecmp(v->name, "group") == 0){
2759                                 group = atoi(v->value);
2760                         } else  if (strcasecmp(v->name, "callgroup") == 0){
2761                                 callgroup = ast_get_group(v->value);
2762                         } else  if (strcasecmp(v->name, "pickupgroup") == 0){
2763                                 pickupgroup = ast_get_group(v->value);
2764                         } else  if (strcasecmp(v->name, "useloopdrop") == 0){
2765                                 UseLoopDrop = atoi(v->value);
2766                         } else  if (strcasecmp(v->name, "usenativebridge") == 0){
2767                                 UseNativeBridge = atoi(v->value);
2768                         } else if (strcasecmp(v->name, "channel") == 0) {
2769                                 int channel = atoi(v->value);
2770                                 tmp = mkif(board, channel, mode, got_gain, txgain, rxgain, txswgain, rxswgain, bal1, bal2, bal3, callerid, echo_cancel,group,callgroup,pickupgroup);
2771                                 if (tmp) {
2772                                         if(first_channel) {
2773                                                 mkbrd( tmp->vpb_model, echo_cancel );
2774                                                 first_channel = 0;
2775                                         }
2776                                         tmp->next = iflist;
2777                                         iflist = tmp;
2778                                 } else {
2779                                         ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value);
2780                                         error = -1;
2781                                         goto done;
2782                                 }
2783                         } else if (strcasecmp(v->name, "language") == 0) {
2784                                 strncpy(language, v->value, sizeof(language)-1);
2785                         } else if (strcasecmp(v->name, "callerid") == 0) {
2786                                 callerid = strdup(v->value);
2787                         } else if (strcasecmp(v->name, "mode") == 0) {
2788                                 if (strncasecmp(v->value, "di", 2) == 0)
2789                                         mode = MODE_DIALTONE;
2790                                 else if (strncasecmp(v->value, "im", 2) == 0)
2791                                         mode = MODE_IMMEDIATE;
2792                                 else if (strncasecmp(v->value, "fx", 2) == 0)
2793                                         mode = MODE_FXO;
2794                                 else
2795                                         ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value);
2796                         } else if (!strcasecmp(v->name, "context")) {
2797                                 strncpy(context, v->value, sizeof(context)-1);
2798                         } else if (!strcasecmp(v->name, "echocancel")) {
2799                                 if (!strcasecmp(v->value, "off"))
2800                                         echo_cancel = 0;
2801                         } else if (strcasecmp(v->name, "txgain") == 0) {
2802                                 txswgain = parse_gain_value(v->name, v->value);
2803                                 got_gain |=VPB_GOT_TXSWG;
2804                         } else if (strcasecmp(v->name, "rxgain") == 0) {
2805                                 rxswgain = parse_gain_value(v->name, v->value);
2806                                 got_gain |=VPB_GOT_RXSWG;
2807                         } else if (strcasecmp(v->name, "txhwgain") == 0) {
2808                                 txgain = parse_gain_value(v->name, v->value);
2809                                 got_gain |=VPB_GOT_TXHWG;
2810                         } else if (strcasecmp(v->name, "rxhwgain") == 0) {
2811                                 rxgain = parse_gain_value(v->name, v->value);
2812                                 got_gain |=VPB_GOT_RXHWG;
2813                         } else if (strcasecmp(v->name, "bal1") == 0) {
2814                                 bal1 = strtol(v->value, NULL, 16);
2815                                 if(bal1<0 || bal1>255) {
2816                                         ast_log(LOG_WARNING, "Bad bal1 value: %d\n", bal1);
2817                                         bal1 = -1;
2818                                 }
2819                         } else if (strcasecmp(v->name, "bal2") == 0) {
2820                                 bal2 = strtol(v->value, NULL, 16);
2821                                 if(bal2<0 || bal2>255) {
2822                                         ast_log(LOG_WARNING, "Bad bal2 value: %d\n", bal2);
2823                                         bal2 = -1;
2824                                 }
2825                         } else if (strcasecmp(v->name, "bal3") == 0) {
2826                                 bal3 = strtol(v->value, NULL, 16);
2827                                 if(bal3<0 || bal3>255) {
2828                                         ast_log(LOG_WARNING, "Bad bal3 value: %d\n", bal3);
2829                                         bal3 = -1;
2830                                 }
2831                         } else if (strcasecmp(v->name, "grunttimeout") == 0) {
2832                                 gruntdetect_timeout = 1000*atoi(v->value);
2833                         }
2834                         v = v->next;
2835                 }
2836
2837                 if (gruntdetect_timeout < 1000)
2838                         gruntdetect_timeout = 1000;
2839
2840                 done: (void)0;
2841         } ast_mutex_unlock(&iflock);
2842
2843         ast_config_destroy(cfg);
2844
2845         if (use_ast_ind == 1){
2846                 if (!error && ast_channel_register(&vpb_tech_indicate) != 0) {
2847                         ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
2848                         error = -1;
2849                 }
2850                 else {
2851                         ast_log(LOG_NOTICE,"VPB driver Registered (w/AstIndication)\n");
2852                 }
2853         }
2854         else {
2855                 if (!error && ast_channel_register(&vpb_tech) != 0) {
2856                         ast_log(LOG_ERROR, "Unable to register channel class %s\n", type);
2857                         error = -1;
2858                 }
2859                 else {
2860                         ast_log(LOG_NOTICE,"VPB driver Registered )\n");
2861                 }
2862         }
2863
2864
2865         if (error)
2866                 unload_module();
2867         else
2868                 restart_monitor(); /* And start the monitor for the first time */
2869
2870         return error;
2871 }
2872
2873
2874 int unload_module()
2875 {
2876         struct vpb_pvt *p;
2877         /* First, take us out of the channel loop */
2878         if (use_ast_ind == 1){
2879                 ast_channel_unregister(&vpb_tech_indicate);
2880         }
2881         else {
2882                 ast_channel_unregister(&vpb_tech);
2883         }
2884
2885         ast_mutex_lock(&iflock); {
2886                 /* Hangup all interfaces if they have an owner */
2887                 p = iflist;
2888                 while(p) {
2889                         if (p->owner)
2890                                 ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);