/* * Asterisk -- A telephony toolkit for Linux. * * VoiceTronix Interface driver * * Copyright (C) 2003, Paul Bagyenda * Paul Bagyenda * Copyright (C) 2004, Ben Kramer * Ben Kramer * * This program is free software, distributed under the terms of * the GNU General Public License */ #include #include //#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef pthread_create #undef pthread_create #endif #define DEFAULT_GAIN 0 #define DEFAULT_ECHO_CANCEL 1 #define VPB_SAMPLES 160 #define VPB_MAX_BUF VPB_SAMPLES*4 + AST_FRIENDLY_OFFSET #define VPB_NULL_EVENT 200 #define VPB_WAIT_TIMEOUT 4000 #define MAX_VPB_GAIN 12.0 /* #if defined(__cplusplus) || defined(c_plusplus) extern "C" { #endif */ static char *desc = "VoiceTronix V6PCI/V12PCI/V4PCI API Support"; static char *type = "vpb"; static char *tdesc = "Standard VoiceTronix API Driver"; static char *config = "vpb.conf"; /* Default context for dialtone mode */ static char context[AST_MAX_EXTENSION] = "default"; /* Default language */ static char language[MAX_LANGUAGE] = ""; static int usecnt =0; static int gruntdetect_timeout = 3600000; /* Grunt detect timeout is 1hr. */ static const int prefformat = AST_FORMAT_SLINEAR; AST_MUTEX_DEFINE_STATIC(usecnt_lock); /* Protect the interface list (of vpb_pvt's) */ AST_MUTEX_DEFINE_STATIC(iflock); /* Protect the monitoring thread, so only one process can kill or start it, and not when it's doing something critical. */ AST_MUTEX_DEFINE_STATIC(monlock); /* This is the thread for the monitor which checks for input on the channels which are not currently in use. */ static pthread_t monitor_thread; static int mthreadactive = -1; /* Flag for monitoring monitorthread.*/ static int restart_monitor(void); /* The private structures of the VPB channels are linked for selecting outgoing channels */ #define MODE_DIALTONE 1 #define MODE_IMMEDIATE 2 #define MODE_FXO 3 /* Pick a country or add your own! */ #define TONES_AU #ifdef TONES_AU static VPB_TONE Dialtone = {440, 440, 440, -10, -10, -10, 5000, 0 }; static VPB_TONE Busytone = {470, 0, 0, -10, -100, -100, 5000, 0 }; static VPB_TONE Ringbacktone = {400, 50, 440, -10, -10, -10, 1400, 800 }; #endif /* #define TONES_USA #ifdef TONES_USA static VPB_TONE Dialtone = {425, 0, 0, -16, -100, -100, 10000, 0}; static VPB_TONE Busytone = {425, 0, 0, -10, -100, -100, 500, 500}; static VPB_TONE Ringbacktone = {400, 425, 450, -20, -20, -20, 1000, 1000}; #endif */ /* grunt tone defn's */ 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 } } }; static VPB_DETECT toned_ungrunt = { 2, VPB_GRUNT, 1, 2000, 1, 0, 0, -40, 0, 0, 30, 40, { { 0, 0, 0, 0 } } }; /* Use loop drop detection */ static int UseLoopDrop=1; /* To use or not to use Native bridging */ static int UseNativeBridge=1; #define TIMER_PERIOD_RINGBACK 2000 #define TIMER_PERIOD_BUSY 700 #define VPB_EVENTS_ALL (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \ |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \ |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH) #define VPB_EVENTS_NODROP (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \ |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \ |VPB_MRING_OFF|VPB_MSTATION_FLASH) #define VPB_EVENTS_NODTMF (VPB_MRING|VPB_MDIGIT|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \ |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \ |VPB_MRING_OFF|VPB_MDROP|VPB_MSTATION_FLASH) #define VPB_EVENTS_STAT (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP|VPB_MPLAY_UNDERFLOW \ |VPB_MRECORD_OVERFLOW|VPB_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \ |VPB_MRING_OFF|VPB_MSTATION_FLASH) // Dialing parameters for Australia //#define DIAL_WITH_CALL_PROGRESS VPB_TONE_MAP DialToneMap[] = { { VPB_BUSY_AUST, VPB_CALL_DISCONNECT, 0 }, { VPB_DIAL, VPB_CALL_DIALTONE, 0 }, { VPB_RINGBACK_308, VPB_CALL_RINGBACK, 0 }, { VPB_BUSY_AUST, VPB_CALL_BUSY, 0 }, { VPB_GRUNT, VPB_CALL_GRUNT, 0 }, { 0, 0, 1 } }; #define VPB_DIALTONE_WAIT 2000 /* Wait up to 2s for a dialtone */ #define VPB_RINGWAIT 4000 /* Wait up to 4s for ring tone after dialing */ #define VPB_CONNECTED_WAIT 4000 /* If no ring tone detected for 4s then consider call connected */ #define TIMER_PERIOD_NOANSWER 120000 /* Let it ring for 120s before deciding theres noone there */ #define MAX_BRIDGES_V4PCI 2 #define MAX_BRIDGES_V12PCI 128 /* port states */ #define VPB_STATE_ONHOOK 0 #define VPB_STATE_OFFHOOK 1 #define VPB_STATE_DIALLING 2 #define VPB_STATE_JOINED 3 #define VPB_STATE_GETDTMF 4 #define VPB_STATE_PLAYDIAL 5 #define VPB_STATE_PLAYBUSY 6 #define VPB_STATE_PLAYRING 7 typedef struct { int inuse; struct ast_channel *c0, *c1, **rc; struct ast_frame **fo; int flags; ast_mutex_t lock; pthread_cond_t cond; int endbridge; } vpb_bridge_t; static vpb_bridge_t * bridges; static int max_bridges = MAX_BRIDGES_V4PCI; AST_MUTEX_DEFINE_STATIC(bridge_lock); typedef enum { vpb_model_unknown = 0, vpb_model_v4pci, vpb_model_v12pci } vpb_model_t; static struct vpb_pvt { ast_mutex_t owner_lock; /* Protect blocks that expect ownership to remain the same */ struct ast_channel *owner; /* Channel who owns us, possibly NULL */ int golock; /* Got owner lock ? */ int mode; /* fxo/imediate/dialtone*/ int handle; /* Handle for vpb interface */ int state; /* used to keep port state (internal to driver) */ int group; /* Which group this port belongs to */ char dev[256]; /* Device name, eg vpb/1-1 */ vpb_model_t vpb_model; /* card model */ struct ast_frame f, fr; /* Asterisk frame interface */ char buf[VPB_MAX_BUF]; /* Static buffer for reading frames */ int dialtone; /* NOT USED */ float txgain, rxgain; /* Hardware gain control */ float txswgain, rxswgain; /* Software gain control */ int wantdtmf; /* Waiting for DTMF. */ char context[AST_MAX_EXTENSION]; /* The context for this channel */ char ext[AST_MAX_EXTENSION]; /* DTMF buffer for the ext[ens] */ char language[MAX_LANGUAGE]; /* language being used */ char callerid[AST_MAX_EXTENSION]; /* CallerId used for directly connected phone */ int lastoutput; /* Holds the last Audio format output'ed */ int lastinput; /* Holds the last Audio format input'ed */ int last_ignore_dtmf; void *busy_timer; /* Void pointer for busy vpb_timer */ int busy_timer_id; /* unique timer ID for busy timer */ void *ringback_timer; /* Void pointer for ringback vpb_timer */ int ringback_timer_id; /* unique timer ID for ringback timer */ double lastgrunt; /* time stamp (secs since epoc) of last grunt event */ ast_mutex_t lock; /* This one just protects bridge ptr below */ vpb_bridge_t *bridge; int stopreads; /* Stop reading...*/ int read_state; /* Read state */ int chuck_count; /* a count of packets weve chucked away!*/ pthread_t readthread; /* For monitoring read channel. One per owned channel. */ ast_mutex_t record_lock; /* This one prevents reentering a record_buf block */ ast_mutex_t play_lock; /* This one prevents reentering a play_buf block */ int play_buf_time; /* How long the last play_buf took */ ast_mutex_t play_dtmf_lock; char play_dtmf[16]; struct vpb_pvt *next; /* Next channel in list */ } *iflist = NULL; static struct ast_channel *vpb_new(struct vpb_pvt *i, int state, char *context); static void *do_chanreads(void *pvt); // Can't get vpb_bridge() working on v4pci without either a horrible // high pitched feedback noise or bad hiss noise depending on gain settings // Get asterisk to do the bridging #define BAD_V4PCI_BRIDGE // This one enables a half duplex bridge which may be required to prevent high pitched // feedback when getting asterisk to do the bridging and when using certain gain settings. //#define HALF_DUPLEX_BRIDGE /* This is the Native bridge code, which Asterisk will try before using its own bridging code */ static int vpb_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc) { struct vpb_pvt *p0 = (struct vpb_pvt *)c0->pvt->pvt; struct vpb_pvt *p1 = (struct vpb_pvt *)c1->pvt->pvt; int i, res; #ifdef BAD_V4PCI_BRIDGE if(p0->vpb_model==vpb_model_v4pci) return -2; #endif if ( UseNativeBridge != 1){ return -2; } /* ast_mutex_lock(&p0->lock); ast_mutex_lock(&p1->lock); */ /* Bridge channels, check if we can. I believe we always can, so find a slot.*/ ast_mutex_lock(&bridge_lock); { for (i = 0; i < max_bridges; i++) if (!bridges[i].inuse) break; if (i < max_bridges) { bridges[i].inuse = 1; bridges[i].endbridge = 0; bridges[i].flags = flags; bridges[i].rc = rc; bridges[i].fo = fo; bridges[i].c0 = c0; bridges[i].c1 = c1; } } ast_mutex_unlock(&bridge_lock); if (i == max_bridges) { ast_log(LOG_WARNING, "Failed to bridge %s and %s!\n", c0->name, c1->name); ast_mutex_unlock(&p0->lock); ast_mutex_unlock(&p1->lock); return -2; } else { /* Set bridge pointers. You don't want to take these locks while holding bridge lock.*/ ast_mutex_lock(&p0->lock); { p0->bridge = &bridges[i]; } ast_mutex_unlock(&p0->lock); ast_mutex_lock(&p1->lock); { p1->bridge = &bridges[i]; } ast_mutex_unlock(&p1->lock); if (option_verbose>1) ast_verbose(VERBOSE_PREFIX_2 "Bridging call entered with [%s, %s]\n", c0->name, c1->name); } #ifdef HALF_DUPLEX_BRIDGE if (option_verbose>1) ast_verbose(VERBOSE_PREFIX_2 "Starting half-duplex bridge [%s, %s]\n", c0->name, c1->name); int dir = 0; memset(p0->buf, 0, sizeof p0->buf); memset(p1->buf, 0, sizeof p1->buf); vpb_record_buf_start(p0->handle, VPB_ALAW); vpb_record_buf_start(p1->handle, VPB_ALAW); vpb_play_buf_start(p0->handle, VPB_ALAW); vpb_play_buf_start(p1->handle, VPB_ALAW); while( !bridges[i].endbridge ) { struct vpb_pvt *from, *to; if(++dir%2) { from = p0; to = p1; } else { from = p1; to = p0; } vpb_record_buf_sync(from->handle, from->buf, VPB_SAMPLES); vpb_play_buf_sync(to->handle, from->buf, VPB_SAMPLES); } vpb_record_buf_finish(p0->handle); vpb_record_buf_finish(p1->handle); vpb_play_buf_finish(p0->handle); vpb_play_buf_finish(p1->handle); if (option_verbose>1) ast_verbose(VERBOSE_PREFIX_2 "Finished half-duplex bridge [%s, %s]\n", c0->name, c1->name); res = VPB_OK; #else res = vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_ON, i+1 /* resource 1 & 2 only for V4PCI*/ ); if (res == VPB_OK) { //pthread_cond_wait(&bridges[i].cond, &bridges[i].lock); /* Wait for condition signal. */ while( !bridges[i].endbridge ) {}; vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_OFF, i+1 /* resource 1 & 2 only for V4PCI*/ ); } #endif ast_mutex_lock(&bridge_lock); { bridges[i].inuse = 0; } ast_mutex_unlock(&bridge_lock); p0->bridge = NULL; p1->bridge = NULL; if (option_verbose>1) ast_verbose(VERBOSE_PREFIX_2 "Bridging call done with [%s, %s] => %d\n", c0->name, c1->name, res); /* ast_mutex_unlock(&p0->lock); ast_mutex_unlock(&p1->lock); */ return (res==VPB_OK)?0:-1; } static double get_time_in_ms() { struct timeval tv; gettimeofday(&tv, NULL); return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000); } // Caller ID can be located in different positions between the rings depending on your Telco // Australian (Telstra) callerid starts 700ms after 1st ring and finishes 1.5s after first ring // Use ANALYSE_CID to record rings and determine location of callerid //#define ANALYSE_CID #define RING_SKIP 600 #define CID_MSECS 1700 static void get_callerid(struct vpb_pvt *p) { short buf[CID_MSECS*8]; // 8kHz sampling rate double cid_record_time; int rc; if(strcasecmp(p->callerid, "on")) { p->owner->callerid = strdup("unknown"); return; } if( ast_mutex_trylock(&p->record_lock) == 0 ) { char callerid[AST_MAX_EXTENSION] = ""; cid_record_time = get_time_in_ms(); if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "CID record - start\n"); #ifdef ANALYSE_CID VPB_RECORD record_parms = { "", 8 * 1000 }; // record a couple of rings vpb_record_set(p->handle,&record_parms); ast_verbose(VERBOSE_PREFIX_4 "Recording debug CID sample to /tmp/cid.raw\n"); vpb_record_file_sync(p->handle,"/tmp/cid.raw",VPB_LINEAR); rc = 1; // don't try to decode_cid #else // Skip any trailing ringtone vpb_sleep(RING_SKIP); if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "CID record - skipped %fms trailing ring\n", get_time_in_ms() - cid_record_time); cid_record_time = get_time_in_ms(); // Record bit between the rings which contains the callerid vpb_record_buf_start(p->handle, VPB_LINEAR); rc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf)); vpb_record_buf_finish(p->handle); #endif if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "CID record - recorded %fms between rings\n", get_time_in_ms() - cid_record_time); ast_mutex_unlock(&p->record_lock); if( rc != VPB_OK ) { ast_log(LOG_ERROR, "Failed to record caller id sample on %s\n", p->dev ); return; } // This decodes FSK 1200baud type callerid if ((rc=vpb_cid_decode(callerid, buf, CID_MSECS*8)) == VPB_OK ) { if(!*callerid) strncpy(callerid,"undisclosed", sizeof(callerid) - 1); // blocked CID (eg caller used 1831) } else { ast_log(LOG_ERROR, "Failed to decode caller id on %s - %s\n", p->dev, vpb_strerror(rc) ); strncpy(callerid,"unknown", sizeof(callerid) - 1); } p->owner->callerid = strdup(callerid); } else ast_log(LOG_ERROR, "Failed to set record mode for caller id on %s\n", p->dev ); } // Terminate any tones we are presently playing static void stoptone( int handle) { int ret; VPB_EVENT je; while(vpb_playtone_state(handle)!=VPB_OK){ vpb_tone_terminate(handle); ret = vpb_get_event_ch_async(handle,&je); if ((ret == VPB_OK)&&(je.type != VPB_DIALEND)){ if (option_verbose > 3){ ast_verbose(VERBOSE_PREFIX_4 "Stop tone collected a wrong event!![%d]\n",je.type); } // vpb_put_event(&je); } vpb_sleep(10); } } /* Safe vpb_playtone_async */ static int playtone( int handle, VPB_TONE *tone) { int ret=VPB_OK; stoptone(handle); if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "[%02d]: Playing tone\n", handle); ret = vpb_playtone_async(handle, tone); return ret; } static inline int monitor_handle_owned(struct vpb_pvt *p, VPB_EVENT *e) { struct ast_frame f = {AST_FRAME_CONTROL}; /* default is control, Clear rest. */ int endbridge = 0; int res=0; if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: [%d=>%d]\n", p->dev, e->type, e->data); f.src = type; switch (e->type) { case VPB_RING: if (p->mode == MODE_FXO) { f.subclass = AST_CONTROL_RING; } else f.frametype = -1; /* ignore ring on station port. */ break; case VPB_RING_OFF: f.frametype = -1; break; case VPB_TIMEREXP: if (e->data == p->busy_timer_id) { playtone(p->handle,&Busytone); p->state = VPB_STATE_PLAYBUSY; vpb_timer_stop(p->busy_timer); vpb_timer_start(p->busy_timer); f.frametype = -1; } else if (e->data == p->ringback_timer_id) { playtone(p->handle, &Ringbacktone); vpb_timer_stop(p->ringback_timer); vpb_timer_start(p->ringback_timer); f.frametype = -1; } else { f.frametype = -1; /* Ignore. */ } break; case VPB_DTMF: if (p->owner->_state == AST_STATE_UP) { f.frametype = AST_FRAME_DTMF; f.subclass = e->data; } else f.frametype = -1; break; case VPB_TONEDETECT: if (e->data == VPB_BUSY || e->data == VPB_BUSY_308 || e->data == VPB_BUSY_AUST ) { if (p->owner->_state == AST_STATE_UP) { f.subclass = AST_CONTROL_HANGUP; } else { f.subclass = AST_CONTROL_BUSY; } } else if (e->data == VPB_GRUNT) { if( ( get_time_in_ms() - p->lastgrunt ) > gruntdetect_timeout ) { // Nothing heard on line for a very long time // Timeout connection if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "grunt timeout\n"); ast_log(LOG_NOTICE,"%s: Line hangup due of lack of conversation\n",p->dev); f.subclass = AST_CONTROL_HANGUP; } else { p->lastgrunt = get_time_in_ms(); f.frametype = -1; } } else f.frametype = -1; break; case VPB_CALLEND: #ifdef DIAL_WITH_CALL_PROGRESS if (e->data == VPB_CALL_CONNECTED) f.subclass = AST_CONTROL_ANSWER; else if (e->data == VPB_CALL_NO_DIAL_TONE || e->data == VPB_CALL_NO_RING_BACK) f.subclass = AST_CONTROL_CONGESTION; else if (e->data == VPB_CALL_NO_ANSWER || e->data == VPB_CALL_BUSY) f.subclass = AST_CONTROL_BUSY; else if (e->data == VPB_CALL_DISCONNECTED) f.subclass = AST_CONTROL_HANGUP; #else ast_log(LOG_NOTICE,"%s: Got call progress callback but blind dialing \n", p->dev); f.frametype = -1; #endif break; case VPB_STATION_OFFHOOK: f.subclass = AST_CONTROL_ANSWER; break; case VPB_DROP: if ((p->mode == MODE_FXO)&&(UseLoopDrop)){ /* ignore loop drop on stations */ if (p->owner->_state == AST_STATE_UP) f.subclass = AST_CONTROL_HANGUP; else f.frametype = -1; } break; case VPB_STATION_ONHOOK: f.subclass = AST_CONTROL_HANGUP; break; case VPB_STATION_FLASH: f.subclass = AST_CONTROL_FLASH; break; // Called when dialing has finished and ringing starts // No indication that call has really been answered when using blind dialing case VPB_DIALEND: if (p->state < 5){ f.subclass = AST_CONTROL_ANSWER; if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 "%s: Dialend\n", p->dev); } else { f.frametype = -1; } break; case VPB_PLAY_UNDERFLOW: f.frametype = -1; vpb_reset_play_fifo_alarm(p->handle); break; case VPB_RECORD_OVERFLOW: f.frametype = -1; vpb_reset_record_fifo_alarm(p->handle); break; default: f.frametype = -1; break; } if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: putting frame type[%d]subclass[%d], bridge=%p\n", p->dev, f.frametype, f.subclass, (void *)p->bridge); /* if (option_verbose > 3) ast_verbose("%s: LOCKING in handle_owned [%d]\n", p->dev,res); res = ast_mutex_lock(&p->lock); if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner); */ { if (p->bridge) { /* Check what happened, see if we need to report it. */ switch (f.frametype) { case AST_FRAME_DTMF: if ( !(p->bridge->c0 == p->owner && (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_0) ) && !(p->bridge->c1 == p->owner && (p->bridge->flags & AST_BRIDGE_DTMF_CHANNEL_1) )) /* Kill bridge, this is interesting. */ endbridge = 1; break; case AST_FRAME_CONTROL: if (!(p->bridge->flags & AST_BRIDGE_IGNORE_SIGS)) #if 0 if (f.subclass == AST_CONTROL_BUSY || f.subclass == AST_CONTROL_CONGESTION || f.subclass == AST_CONTROL_HANGUP || f.subclass == AST_CONTROL_FLASH) #endif endbridge = 1; break; default: break; } if (endbridge) { if (p->bridge->fo) *p->bridge->fo = ast_frisolate(&f); if (p->bridge->rc) *p->bridge->rc = p->owner; ast_mutex_lock(&p->bridge->lock); { p->bridge->endbridge = 1; pthread_cond_signal(&p->bridge->cond); } ast_mutex_unlock(&p->bridge->lock); } } } if (endbridge){ res = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res); */ return 0; } // Trylock used here to avoid deadlock that can occur if we // happen to be in here handling an event when hangup is called // Problem is that hangup holds p->owner->lock if ((f.frametype >= 0)&& (f.frametype != AST_FRAME_NULL)&&(p->owner)) { if (ast_mutex_trylock(&p->owner->lock)==0) { ast_queue_frame(p->owner, &f); ast_mutex_unlock(&p->owner->lock); } else { ast_verbose("%s: handled_owned: Missed event %d/%d \n", p->dev,f.frametype, f.subclass); } } res = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in handle_owned [%d]\n", p->dev,res); */ return 0; } static inline int monitor_handle_notowned(struct vpb_pvt *p, VPB_EVENT *e) { char s[2] = {0}; if (option_verbose > 3) { char str[VPB_MAX_STR]; vpb_translate_event(e, str); ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, event[%d][%s]=[%d]\n", p->dev, p->mode, e->type,str, e->data); } switch(e->type) { case VPB_RING: if (p->mode == MODE_FXO) /* FXO port ring, start * */ { vpb_new(p, AST_STATE_RING, p->context); get_callerid(p); /* Australian Caller ID only between 1st and 2nd ring */ } break; case VPB_RING_OFF: break; case VPB_STATION_OFFHOOK: if (p->mode == MODE_IMMEDIATE) vpb_new(p,AST_STATE_RING, p->context); else { ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: playing dialtone\n",p->dev); playtone(p->handle, &Dialtone); p->wantdtmf = 1; p->ext[0] = 0; /* Just to be sure & paranoid.*/ p->state=VPB_STATE_PLAYDIAL; } break; case VPB_DIALEND: if (p->mode == MODE_DIALTONE){ if (p->state == VPB_STATE_PLAYDIAL) { playtone(p->handle, &Dialtone); p->wantdtmf = 1; p->ext[0] = 0; // Just to be sure & paranoid. } /* These are not needed as they have timers to restart them else if (p->state == VPB_STATE_PLAYBUSY) { playtone(p->handle, &Busytone); p->wantdtmf = 1; p->ext[0] = 0; // Just to be sure & paranoid. } else if (p->state == VPB_STATE_PLAYRING) { playtone(p->handle, &Ringbacktone); p->wantdtmf = 1; p->ext[0] = 0; // Just to be sure & paranoid. } */ } else { ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Got a DIALEND when not really expected\n",p->dev); } break; case VPB_STATION_ONHOOK: /* clear ext */ stoptone(p->handle); p->wantdtmf = 1 ; p->ext[0] = 0; p->state=VPB_STATE_ONHOOK; break; case VPB_DTMF: if (p->state == VPB_STATE_ONHOOK){ /* DTMF's being passed while on-hook maybe Caller ID */ break; } if (p->wantdtmf == 1) { stoptone(p->handle); p->wantdtmf = 0; } p->state=VPB_STATE_GETDTMF; s[0] = e->data; strncat(p->ext, s, sizeof(p->ext) - strlen(p->ext) - 1); if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)){ vpb_new(p,AST_STATE_RING, p->context); } else if (!ast_canmatch_extension(NULL, p->context, p->ext, 1, p->callerid)){ if (ast_exists_extension(NULL, "default", p->ext, 1, p->callerid)) { vpb_new(p,AST_STATE_RING, "default"); } else if (!ast_canmatch_extension(NULL, "default", p->ext, 1, p->callerid)) { if (option_verbose > 3) { ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: can't match anything in %s or default\n", p->dev, p->context); } playtone(p->handle, &Busytone); vpb_timer_stop(p->busy_timer); vpb_timer_start(p->busy_timer); p->state = VPB_STATE_PLAYBUSY; } } break; default: /* Ignore.*/ break; } if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: mode=%d, [%d=>%d]\n", p->dev, p->mode, e->type, e->data); return 0; } static void *do_monitor(void *unused) { /* Monitor thread, doesn't die until explicitly killed. */ if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 "Starting vpb monitor thread[%ld]\n", pthread_self()); pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); for(;;) { VPB_EVENT e; VPB_EVENT je; char str[VPB_MAX_STR]; struct vpb_pvt *p; /* if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "Monitor waiting for event\n"); */ int res = vpb_get_event_sync(&e, VPB_WAIT_TIMEOUT); if( (res==VPB_NO_EVENTS) || (res==VPB_TIME_OUT) ){ /* if (option_verbose > 3){ if (res == VPB_NO_EVENTS){ ast_verbose(VERBOSE_PREFIX_4 "No events....\n"); } else { ast_verbose(VERBOSE_PREFIX_4 "No events, timed out....\n"); } } */ continue; } if (res != VPB_OK) { ast_log(LOG_ERROR,"Monitor get event error %s\n", vpb_strerror(res) ); ast_verbose("Monitor get event error %s\n", vpb_strerror(res) ); continue; } str[0] = 0; p = NULL; ast_mutex_lock(&monlock); { vpb_translate_event(&e, str); if (e.type == VPB_NULL_EVENT) { if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "Monitor got null event\n"); goto done; /* Nothing to do, just a wakeup call.*/ } if (strlen(str)>1){ str[(strlen(str)-1)]='\0'; } ast_mutex_lock(&iflock); { p = iflist; while (p && p->handle != e.handle) p = p->next; } ast_mutex_unlock(&iflock); if (p && (option_verbose > 3)) ast_verbose(VERBOSE_PREFIX_4 "%s: Event [%d=>%s] \n", p ? p->dev : "null", e.type, str ); done: (void)0; } ast_mutex_unlock(&monlock); if (!p) { if (e.type != VPB_NULL_EVENT){ ast_log(LOG_WARNING, "Got event [%s][%d], no matching iface!\n", str,e.type); if (option_verbose > 3){ ast_verbose(VERBOSE_PREFIX_4 "vpb/ERR: No interface for Event [%d=>%s] \n",e.type,str ); } } continue; } /* flush the event from the channel event Q */ vpb_get_event_ch_async(e.handle,&je); if (option_verbose > 4){ vpb_translate_event(&je, str); ast_verbose("%s: Flushing event [%d]=>%s\n",p->dev,je.type,str); } /* Check for ownership and locks */ if ((p->owner)&&(!p->golock)){ /* Need to get owner lock */ /* Safely grab both p->lock and p->owner->lock so that there cannot be a race with something from the other side */ /* ast_mutex_lock(&p->lock); while(ast_mutex_trylock(&p->owner->lock)) { ast_mutex_unlock(&p->lock); usleep(1); ast_mutex_lock(&p->lock); if (!p->owner) break; } if (p->owner) p->golock=1; */ } /* Two scenarios: Are you owned or not. */ if (p->owner) { monitor_handle_owned(p, &e); } else { monitor_handle_notowned(p, &e); } /* if ((!p->owner)&&(p->golock)){ ast_mutex_unlock(&p->owner->lock); ast_mutex_unlock(&p->lock); } */ } return NULL; } static int restart_monitor(void) { int error = 0; /* If we're supposed to be stopped -- stay stopped */ if (mthreadactive == -2) return 0; if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "Restarting monitor\n"); ast_mutex_lock(&monlock); { if (monitor_thread == pthread_self()) { ast_log(LOG_WARNING, "Cannot kill myself\n"); error = -1; if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "Monitor trying to kill monitor\n"); goto done; } if (mthreadactive != -1) { /* Why do other drivers kill the thread? No need says I, simply awake thread with event. */ VPB_EVENT e; e.handle = 0; e.type = VPB_NULL_EVENT; e.data = 0; if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "Trying to reawake monitor\n"); vpb_put_event(&e); } else { /* Start a new monitor */ int pid = ast_pthread_create(&monitor_thread, NULL, do_monitor, NULL); if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "Created new monitor thread %d\n",pid); if (pid < 0) { ast_log(LOG_ERROR, "Unable to start monitor thread.\n"); error = -1; goto done; } else mthreadactive = 0; /* Started the thread!*/ } done: (void)0; } ast_mutex_unlock(&monlock); if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "Monitor restarted\n"); return error; } // Per board config that must be called after vpb_open() static void mkbrd(vpb_model_t model, int echo_cancel) { if(!bridges) { if(model==vpb_model_v4pci) max_bridges = MAX_BRIDGES_V4PCI; bridges = (vpb_bridge_t *)malloc(max_bridges * sizeof(vpb_bridge_t) ); if(!bridges) ast_log(LOG_ERROR, "Failed to initialize bridges\n"); else { memset(bridges,0,max_bridges * sizeof(vpb_bridge_t)); for(int i = 0; i < max_bridges; i++ ) { ast_mutex_init(&bridges[i].lock); pthread_cond_init(&bridges[i].cond, NULL); } } } if(!echo_cancel) { if (model==vpb_model_v4pci) { vpb_echo_canc_disable(); ast_log(LOG_NOTICE, "Voicetronix echo cancellation OFF\n"); } else { /* need to it port by port for OpenSwitch*/ } } else { if (model==vpb_model_v4pci) { vpb_echo_canc_enable(); ast_log(LOG_NOTICE, "Voicetronix echo cancellation ON\n"); } else { /* need to it port by port for OpenSwitch*/ } } } struct vpb_pvt *mkif(int board, int channel, int mode, float txgain, float rxgain, float txswgain, float rxswgain, int bal1, int bal2, int bal3, char * callerid, int echo_cancel, int group ) { struct vpb_pvt *tmp; char buf[64]; tmp = (struct vpb_pvt *)calloc(1, sizeof *tmp); if (!tmp) return NULL; tmp->handle = vpb_open(board, channel); if (tmp->handle < 0) { ast_log(LOG_WARNING, "Unable to create channel vpb/%d-%d: %s\n", board, channel, strerror(errno)); free(tmp); return NULL; } snprintf(tmp->dev, sizeof(tmp->dev), "vpb/%d-%d", board, channel); tmp->mode = mode; tmp->group = group; strncpy(tmp->language, language, sizeof(tmp->language) - 1); strncpy(tmp->context, context, sizeof(tmp->context) - 1); if(callerid) { strncpy(tmp->callerid, callerid, sizeof(tmp->callerid) - 1); free(callerid); } else { strncpy(tmp->callerid, "unknown", sizeof(tmp->callerid) - 1); } /* check if codec balances have been set in the config file */ if (bal3>=0) { if ((bal1>=0) && !(bal1 & 32)) bal1 |= 32; vpb_set_codec_reg(tmp->handle, 0x42, bal3); } if(bal1>=0) vpb_set_codec_reg(tmp->handle, 0x32, bal1); if(bal2>=0) vpb_set_codec_reg(tmp->handle, 0x3a, bal2); tmp->txgain = txgain; vpb_play_set_hw_gain(tmp->handle, (txgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txgain); tmp->rxgain = rxgain; vpb_record_set_hw_gain(tmp->handle, (rxgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxgain); tmp->txswgain = txswgain; vpb_play_set_gain(tmp->handle, (txswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : txswgain); tmp->rxswgain = rxswgain; vpb_record_set_gain(tmp->handle, (rxswgain > MAX_VPB_GAIN) ? MAX_VPB_GAIN : rxswgain); tmp->vpb_model = vpb_model_unknown; if( vpb_get_model(buf) == VPB_OK ) { if(strcmp(buf,"V12PCI")==0) tmp->vpb_model = vpb_model_v12pci; else if(strcmp(buf,"VPB4")==0) tmp->vpb_model = vpb_model_v4pci; } ast_mutex_init(&tmp->owner_lock); ast_mutex_init(&tmp->lock); ast_mutex_init(&tmp->record_lock); ast_mutex_init(&tmp->play_lock); ast_mutex_init(&tmp->play_dtmf_lock); /* set default read state */ tmp->read_state = 0; tmp->golock=0; tmp->busy_timer_id = vpb_timer_get_unique_timer_id(); vpb_timer_open(&tmp->busy_timer, tmp->handle, tmp->busy_timer_id, TIMER_PERIOD_BUSY); tmp->ringback_timer_id = vpb_timer_get_unique_timer_id(); vpb_timer_open(&tmp->ringback_timer, tmp->handle, tmp->ringback_timer_id, TIMER_PERIOD_RINGBACK); if (mode == MODE_FXO){ vpb_set_event_mask(tmp->handle, VPB_EVENTS_ALL ); } else { vpb_set_event_mask(tmp->handle, VPB_EVENTS_STAT ); } if ((tmp->vpb_model == vpb_model_v12pci) && (echo_cancel)){ vpb_hostecho_on(tmp->handle); } /* define grunt tone */ vpb_settonedet(tmp->handle,&toned_ungrunt); ast_log(LOG_NOTICE,"Voicetronix %s channel %s initialized (rxgain=%f txgain=%f) (%f/%f/0x%X/0x%X/0x%X)\n", (tmp->vpb_model==vpb_model_v4pci)?"V4PCI": (tmp->vpb_model==vpb_model_v12pci)?"V12PCI":"[Unknown model]", tmp->dev, tmp->rxswgain, tmp->txswgain, tmp->rxgain, tmp->txgain, bal1, bal2, bal3 ); return tmp; } static int vpb_indicate(struct ast_channel *ast, int condition) { struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; int res = 0; int tmp = 0; if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate [%d] state[%d]\n", p->dev, condition,ast->_state); /* if (ast->_state != AST_STATE_UP) { ast_verbose(VERBOSE_PREFIX_4 "%s: vpb_indicate Not in AST_STATE_UP\n", p->dev, condition,ast->_state); return res; } */ /* if (option_verbose > 3) ast_verbose("%s: LOCKING in indicate \n", p->dev); if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner); */ ast_mutex_lock(&p->lock); switch(condition) { case AST_CONTROL_BUSY: case AST_CONTROL_CONGESTION: if (ast->_state == AST_STATE_UP) { playtone(p->handle, &Busytone); p->state = VPB_STATE_PLAYBUSY; vpb_timer_stop(p->busy_timer); vpb_timer_start(p->busy_timer); } break; case AST_CONTROL_RINGING: if (ast->_state == AST_STATE_UP) { playtone(p->handle, &Ringbacktone); p->state = VPB_STATE_PLAYRING; if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: vpb indicate: setting ringback timer [%d]\n", p->dev,p->ringback_timer_id); vpb_timer_stop(p->ringback_timer); vpb_timer_start(p->ringback_timer); } break; case AST_CONTROL_ANSWER: case -1: /* -1 means stop playing? */ vpb_timer_stop(p->ringback_timer); vpb_timer_stop(p->busy_timer); stoptone(p->handle); break; case AST_CONTROL_HANGUP: if (ast->_state == AST_STATE_UP) { playtone(p->handle, &Busytone); p->state = VPB_STATE_PLAYBUSY; vpb_timer_stop(p->busy_timer); vpb_timer_start(p->busy_timer); } break; default: res = 0; break; } tmp = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in indicate [%d]\n", p->dev,tmp); */ return res; } static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan) { struct vpb_pvt *p = (struct vpb_pvt *)newchan->pvt->pvt; int res = 0; /* if (option_verbose > 3) ast_verbose("%s: LOCKING in fixup \n", p->dev); if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner); */ ast_mutex_lock(&p->lock); ast_log(LOG_DEBUG, "New owner for channel %s is %s\n", p->dev, newchan->name); if (p->owner == oldchan) { p->owner = newchan; } if (newchan->_state == AST_STATE_RINGING) vpb_indicate(newchan, AST_CONTROL_RINGING); res= ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in fixup [%d]\n", p->dev,res); */ return 0; } static int vpb_digit(struct ast_channel *ast, char digit) { struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; char s[2]; int res = 0; /* if (option_verbose > 3) ast_verbose("%s: LOCKING in digit \n", p->dev); if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner); */ ast_mutex_lock(&p->lock); s[0] = digit; s[1] = '\0'; if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: play digit[%s]\n", p->dev, s); ast_mutex_lock(&p->play_dtmf_lock); strncat(p->play_dtmf,s,sizeof(*p->play_dtmf)); ast_mutex_unlock(&p->play_dtmf_lock); res = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in digit [%d]\n", p->dev,res); */ return 0; } /* Places a call out of a VPB channel */ static int vpb_call(struct ast_channel *ast, char *dest, int timeout) { struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; int res = 0,i; char *s = strrchr(dest, '/'); char dialstring[254] = ""; int tmp = 0; /* if (option_verbose > 3) ast_verbose("%s: LOCKING in call \n", p->dev); if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner); */ ast_mutex_lock(&p->lock); if (s) s = s + 1; else s = dest; strncpy(dialstring, s, sizeof(dialstring) - 1); for (i=0; dialstring[i] != '\0' ; i++) { if ((dialstring[i] == 'w') || (dialstring[i] == 'W')) dialstring[i] = ','; else if ((dialstring[i] == 'f') || (dialstring[i] == 'F')) dialstring[i] = '&'; } if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: starting call\n", p->dev); if (ast->_state != AST_STATE_DOWN && ast->_state != AST_STATE_RESERVED) { ast_log(LOG_WARNING, "vpb_call on %s neither down nor reserved!\n", ast->name); tmp = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp); */ return -1; } if (p->mode != MODE_FXO) /* Station port, ring it. */ res = vpb_ring_station_async(p->handle, VPB_RING_STATION_ON,0); else { VPB_CALL call; // Dial must timeout or it can leave channels unuseable if( timeout == 0 ) timeout = TIMER_PERIOD_NOANSWER; else timeout = timeout * 1000; //convert from secs to ms. // These timeouts are only used with call progress dialing call.dialtones = 1; // Number of dialtones to get outside line call.dialtone_timeout = VPB_DIALTONE_WAIT; // Wait this long for dialtone (ms) call.ringback_timeout = VPB_RINGWAIT; // Wait this long for ringing after dialing (ms) call.inter_ringback_timeout = VPB_CONNECTED_WAIT; // If ringing stops for this long consider it connected (ms) call.answer_timeout = timeout; // Time to wait for answer after ringing starts (ms) memcpy( &call.tone_map, DialToneMap, sizeof(DialToneMap) ); vpb_set_call(p->handle, &call); if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 "%s: Calling %s on %s \n",p->dev, dialstring, ast->name); if (option_verbose > 2) { int j; ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s %d/%dms/%dms/%dms/%dms\n", p->dev , ast->name, call.dialtones, call.dialtone_timeout , call.ringback_timeout, call.inter_ringback_timeout , call.answer_timeout ); for( j=0; !call.tone_map[j].terminate; j++ ) ast_verbose(VERBOSE_PREFIX_2 "%s: Dial parms for %s tone %d->%d\n", p->dev, ast->name, call.tone_map[j].tone_id, call.tone_map[j].call_id); } if (option_verbose > 4) ast_verbose("%s: Disabling Loop Drop detection\n",p->dev); vpb_disable_event(p->handle, VPB_MDROP); vpb_sethook_sync(p->handle,VPB_OFFHOOK); p->state=VPB_STATE_OFFHOOK; #ifndef DIAL_WITH_CALL_PROGRESS vpb_sleep(300); if (option_verbose > 4) ast_verbose("%s: Disabling Loop Drop detection\n",p->dev); vpb_enable_event(p->handle, VPB_MDROP); res = vpb_dial_async(p->handle, dialstring); #else if (option_verbose > 4) ast_verbose("%s: Disabling Loop Drop detection\n",p->dev); vpb_enable_event(p->handle, VPB_MDROP); res = vpb_call_async(p->handle, dialstring); #endif if (res != VPB_OK) { ast_log(LOG_DEBUG, "Call on %s to %s failed: %s\n", ast->name, s, vpb_strerror(res)); res = -1; } else res = 0; } if (option_verbose > 2) ast_verbose(VERBOSE_PREFIX_3 "%s: VPB Calling %s [t=%d] on %s returned %d\n",p->dev , s, timeout, ast->name, res); if (res == 0) { ast_setstate(ast, AST_STATE_RINGING); ast_queue_control(ast,AST_CONTROL_RINGING); } if (!p->readthread){ ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p); } tmp = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in call [%d]\n", p->dev,tmp); */ return res; } static int vpb_hangup(struct ast_channel *ast) { struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; VPB_EVENT je; char str[VPB_MAX_STR]; int res =0 ; /* if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev); 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); if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self()); ast_mutex_lock(&p->lock); */ if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup requested\n", ast->name); if (!ast->pvt || !ast->pvt->pvt) { ast_log(LOG_WARNING, "%s: channel not connected?\n", ast->name); res = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res); */ return 0; } /* Stop record */ p->stopreads = 1; if( p->readthread ){ pthread_join(p->readthread, NULL); if(option_verbose>3) ast_verbose( VERBOSE_PREFIX_4 "%s: stopped record thread on %s\n",ast->name,p->dev); } /* Stop play */ if (p->lastoutput != -1) { if(option_verbose>1) ast_verbose( VERBOSE_PREFIX_2 "%s: Ending play mode on %s\n",ast->name,p->dev); vpb_play_terminate(p->handle); ast_mutex_lock(&p->play_lock); { vpb_play_buf_finish(p->handle); } ast_mutex_unlock(&p->play_lock); } if(option_verbose>3) ast_verbose( VERBOSE_PREFIX_4 "%s: Setting state down\n",ast->name); ast_setstate(ast,AST_STATE_DOWN); /* if (option_verbose > 3) ast_verbose("%s: LOCKING in hangup \n", p->dev); 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); if (option_verbose > 3) ast_verbose("%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self()); */ ast_mutex_lock(&p->lock); if (p->mode != MODE_FXO) { /* station port. */ vpb_ring_station_async(p->handle, VPB_RING_STATION_OFF,0); if(p->state!=VPB_STATE_ONHOOK){ /* This is causing a "dial end" "play tone" loop playtone(p->handle, &Busytone); p->state = VPB_STATE_PLAYBUSY; if(option_verbose>4) ast_verbose( VERBOSE_PREFIX_4 "%s: Station offhook[%d], playing busy tone\n", ast->name,p->state); */ } else { stoptone(p->handle); } } else { stoptone(p->handle); // Terminates any dialing vpb_sethook_sync(p->handle, VPB_ONHOOK); p->state=VPB_STATE_ONHOOK; } while (VPB_OK==vpb_get_event_ch_async(p->handle,&je)){ if(option_verbose>3) { vpb_translate_event(&je, str); ast_verbose( VERBOSE_PREFIX_4 "%s: Flushing event [%d]=>%s\n",ast->name,je.type,str); } } p->readthread = 0; p->lastoutput = -1; p->lastinput = -1; p->last_ignore_dtmf = 1; p->ext[0] = 0; p->dialtone = 0; p->owner = NULL; ast->pvt->pvt=NULL; ast_mutex_lock(&usecnt_lock); { usecnt--; } ast_mutex_unlock(&usecnt_lock); ast_update_use_count(); if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 "%s: Hangup complete\n", ast->name); restart_monitor(); /* 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); */ res = ast_mutex_unlock(&p->lock); /* if (option_verbose > 3) ast_verbose("%s: unLOCKING in hangup [%d]\n", p->dev,res); 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); */ return 0; } static int vpb_answer(struct ast_channel *ast) { struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; VPB_EVENT je; int ret; int res = 0; /* if (option_verbose > 3) ast_verbose("%s: LOCKING in answer \n", p->dev); if (option_verbose > 3) ast_verbose("%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner); */ ast_mutex_lock(&p->lock); if (option_verbose > 3) ast_verbose(VERBOSE_PREFIX_4 "%s: Answering channel\n",p->dev); if (p->mode == MODE_FXO){ if (option_verbose > 4) ast_verbose("%s: Disabling Loop Drop detection\n",p->dev); vpb_disable_event(p->handle, VPB_MDROP); } if (ast->_state != AST_STATE_UP) { if (p->mode == MODE_FXO){ vpb_sethook_sync(p->handle, VPB_OFFHOOK); p->state=VPB_STATE_OFFHOOK; /* vpb_sleep(500); ret = vpb_get_event_ch_async(p->handle,&je); if ((ret == VPB_OK)&&((je.type != VPB_DROP)&&(je.type != VPB_RING))){ if (option_verbose > 3){ ast_verbose(VERBOSE_PREFIX_4 "%s: Answer collected a wrong event!!\n",p->dev); } vpb_put_event(&je); } */ } ast_setstate(ast, AST_STATE_UP); if(option_verbose>1) ast_verbose( VERBOSE_PREFIX_2 "%s: Answered call from %s on %s [%s]\n", p->dev, p->owner->callerid, ast->name,(p->mode == MODE_FXO)?"FXO":"FXS"); ast->rings = 0; if( !p->readthread ){ // res = ast_mutex_unlock(&p->lock); // ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); ast_pthread_create(&p->readthread, NULL, do_chanreads, (void *)p); } else { if(option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "%s: Record thread already running!!\n",p->dev); } } else { if(option_verbose>3) { ast_verbose(VERBOSE_PREFIX_4 "%s: Answered state is up\n",p->dev); } // res = ast_mutex_unlock(&p->lock); // ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); } vpb_sleep(500); if (p->mode == MODE_FXO){ if (option_verbose > 4) ast_verbose("%s: Re-enabling Loop Drop detection\n",p->dev); vpb_enable_event(p->handle,VPB_MDROP); } res = ast_mutex_unlock(&p->lock); /* if(option_verbose>3) ast_verbose("%s: unLOCKING in answer [%d]\n", p->dev,res); */ return 0; } static struct ast_frame *vpb_read(struct ast_channel *ast) { struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; static struct ast_frame f = {AST_FRAME_NULL}; f.src = type; ast_log(LOG_NOTICE, "%s: vpb_read: should never be called!\n", p->dev); ast_verbose("%s: vpb_read: should never be called!\n", p->dev); return &f; } static inline int ast2vpbformat(int ast_format) { switch(ast_format) { case AST_FORMAT_ALAW: return VPB_ALAW; case AST_FORMAT_SLINEAR: return VPB_LINEAR; case AST_FORMAT_ULAW: return VPB_MULAW; case AST_FORMAT_ADPCM: return VPB_OKIADPCM; default: return -1; } } static inline char * ast2vpbformatname(int ast_format) { switch(ast_format) { case AST_FORMAT_ALAW: return "AST_FORMAT_ALAW:VPB_ALAW"; case AST_FORMAT_SLINEAR: return "AST_FORMAT_SLINEAR:VPB_LINEAR"; case AST_FORMAT_ULAW: return "AST_FORMAT_ULAW:VPB_MULAW"; case AST_FORMAT_ADPCM: return "AST_FORMAT_ADPCM:VPB_OKIADPCM"; default: return "UNKN:UNKN"; } } static inline int astformatbits(int ast_format) { switch(ast_format) { case AST_FORMAT_ALAW: case AST_FORMAT_ULAW: return 8; case AST_FORMAT_SLINEAR: return 16; case AST_FORMAT_ADPCM: return 4; default: return 8; } } int a_gain_vector(float g, short *v, int n) { int i; float tmp; for ( i = 0; i 32767.0) tmp = 32767.0; if (tmp < -32768.0) tmp = -32768.0; v[i] = (short)tmp; } return(i); } /* Writes a frame of voice data to a VPB channel */ static int vpb_write(struct ast_channel *ast, struct ast_frame *frame) { struct vpb_pvt *p = (struct vpb_pvt *)ast->pvt->pvt; int res = 0, fmt = 0; struct timeval play_buf_time_start,play_buf_time_finish; // ast_mutex_lock(&p->lock); if(option_verbose>5) ast_verbose("%s: vpb_write: Writing to channel\n", p->dev); if (frame->frametype != AST_FRAME_VOICE) { if(option_verbose>3) ast_verbose("%s: vpb_write: Don't know how to handle from type %d\n", ast->name, frame->frametype); // ast_mutex_unlock(&p->lock); return 0; } else if (ast->_state != AST_STATE_UP) { if(option_verbose>3) ast_verbose("%s: vpb_write: Attempt to Write frame type[%d]subclass[%d] on not up chan\n",ast->name, frame->frametype, frame->subclass); p->lastoutput = -1; // ast_mutex_unlock(&p->lock); return 0; } ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame type..\n", p->dev); fmt = ast2vpbformat(frame->subclass); if (fmt < 0) { ast_log(LOG_WARNING, "%s: vpb_write: Cannot handle frames of %d format!\n",ast->name, frame->subclass); return -1; } ast_log(LOG_DEBUG, "%s: vpb_write: Checked frame format..\n", p->dev); ast_mutex_lock(&p->play_lock); ast_log(LOG_DEBUG, "%s: vpb_write: Got play lock..\n", p->dev); /* Check if we have set up the play_buf */ if (p->lastoutput == -1) { vpb_play_buf_start(p->handle, fmt); if(option_verbose>1) { ast_verbose("%s: vpb_write: Starting play mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(frame->subclass)); } } else if (p->lastoutput != fmt) { vpb_play_buf_finish(p->handle); vpb_play_buf_start(p->handle, fmt); if(option_verbose>1) ast_verbose("%s: vpb_write: Changed play format (%d=>%d)\n",p->dev,p->lastoutput,fmt); } p->lastoutput = fmt; // Apply extra gain ! if( p->txswgain > MAX_VPB_GAIN ) a_gain_vector(p->txswgain - MAX_VPB_GAIN , (short*)frame->data, frame->datalen/sizeof(short)); ast_log(LOG_DEBUG, "%s: vpb_write: Applied gain..\n", p->dev); // gettimeofday(&tv, NULL); // return ((double)tv.tv_sec*1000)+((double)tv.tv_usec/1000); if ((p->read_state == 1)&&(p->play_buf_time<5)){ gettimeofday(&play_buf_time_start,NULL); res = vpb_play_buf_sync(p->handle, (char*)frame->data, frame->datalen); if( (res == VPB_OK) && (option_verbose > 5) ) { short * data = (short*)frame->data; ast_verbose("%s: vpb_write: Wrote chan (codec=%d) %d %d\n", p->dev, fmt, data[0],data[1]); } gettimeofday(&play_buf_time_finish,NULL); if (play_buf_time_finish.tv_sec == play_buf_time_start.tv_sec){ p->play_buf_time=(int)((play_buf_time_finish.tv_usec-play_buf_time_start.tv_usec)/1000); // 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); } else { 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); } // 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); } else { p->chuck_count++; ast_log(LOG_DEBUG, "%s: vpb_write: Tossed data away, tooooo much data!![%d]\n", p->dev,p->chuck_count); p->play_buf_time=0; } ast_mutex_unlock(&p->play_lock); // ast_mutex_unlock(&p->lock); if(option_verbose>5) ast_verbose("%s: vpb_write: Done Writing to channel\n", p->dev); return 0; } /* Read monitor thread function. */ static void *do_chanreads(void *pvt) { struct vpb_pvt *p = (struct vpb_pvt *)pvt; struct ast_frame *fr = &p->fr; char *readbuf = ((char *)p->buf) + AST_FRIENDLY_OFFSET; int bridgerec = 0; int afmt, readlen, res, fmt, trycnt=0; int ignore_dtmf; char * getdtmf_var = NULL; fr->frametype = AST_FRAME_VOICE; fr->src = type; fr->mallocd = 0; fr->delivery.tv_sec = 0; fr->delivery.tv_usec = 0; fr->samples = VPB_SAMPLES; fr->offset = AST_FRIENDLY_OFFSET; memset(p->buf, 0, sizeof p->buf); if (option_verbose > 2) { ast_verbose("%s: chanreads: starting thread\n", p->dev); } ast_mutex_lock(&p->record_lock); p->stopreads = 0; p->read_state = 1; while (!p->stopreads && p->owner) { if (option_verbose > 4) ast_verbose("%s: chanreads: Starting cycle ...\n", p->dev); if (option_verbose > 4) ast_verbose("%s: chanreads: Checking bridge \n", p->dev); if (p->bridge) { if (p->bridge->c0 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_0)) bridgerec = 1; else if (p->bridge->c1 == p->owner && (p->bridge->flags & AST_BRIDGE_REC_CHANNEL_1)) bridgerec = 1; else bridgerec = 0; } else { if (option_verbose > 4) ast_verbose("%s: chanreads: No native bridge.\n", p->dev); if (p->owner->bridge){ if (option_verbose > 4){ ast_verbose("%s: chanreads: Got Asterisk bridge with [%s].\n", p->dev,p->owner->bridge->name); } bridgerec = 1; } else { bridgerec = 0; } } if ( (p->owner->_state != AST_STATE_UP) || !bridgerec) { if (option_verbose > 4) { if (p->owner->_state != AST_STATE_UP) ast_verbose("%s: chanreads: Im not up[%d]\n", p->dev,p->owner->_state); else ast_verbose("%s: chanreads: No bridgerec[%d]\n", p->dev,bridgerec); } vpb_sleep(10); continue; } // Voicetronix DTMF detection can be triggered off ordinary speech // This leads to annoying beeps during the conversation // Avoid this problem by just setting VPB_GETDTMF when you want to listen for DTMF //ignore_dtmf = 1; ignore_dtmf = 0; /* set this to 1 to turn this feature on */ getdtmf_var = pbx_builtin_getvar_helper(p->owner,"VPB_GETDTMF"); if( getdtmf_var && ( strcasecmp( getdtmf_var, "yes" ) == 0 ) ) ignore_dtmf = 0; if( ignore_dtmf != p->last_ignore_dtmf ) { if(option_verbose>1) ast_verbose( VERBOSE_PREFIX_2 "%s:Now %s DTMF \n", p->dev, ignore_dtmf ? "ignoring" : "listening for"); vpb_set_event_mask(p->handle, ignore_dtmf ? VPB_EVENTS_NODTMF : VPB_EVENTS_ALL ); } p->last_ignore_dtmf = ignore_dtmf; // Play DTMF digits here to avoid problem you get if playing a digit during // a record operation if (option_verbose > 5) { ast_verbose("%s: chanreads: Checking dtmf's \n", p->dev); } ast_mutex_lock(&p->play_dtmf_lock); if( p->play_dtmf[0] ) { // Try to ignore DTMF event we get after playing digit // This DTMF is played by asterisk and leads to an annoying trailing beep on CISCO phones if( !ignore_dtmf) vpb_set_event_mask(p->handle, VPB_EVENTS_NODTMF ); vpb_dial_sync(p->handle,p->play_dtmf); if(option_verbose>1) ast_verbose( VERBOSE_PREFIX_2 "%s: Played DTMF %s\n",p->dev,p->play_dtmf); p->play_dtmf[0] = '\0'; ast_mutex_unlock(&p->play_dtmf_lock); vpb_sleep(700); // Long enough to miss echo and DTMF event if( !ignore_dtmf) vpb_set_event_mask(p->handle, VPB_EVENTS_ALL ); continue; } ast_mutex_unlock(&p->play_dtmf_lock); // afmt = (p->owner) ? p->owner->pvt->rawreadformat : AST_FORMAT_SLINEAR; if (p->owner){ afmt = p->owner->pvt->rawreadformat; ast_log(LOG_DEBUG,"%s: Record using owner format [%s]\n", p->dev, ast2vpbformatname(afmt)); } else { afmt = AST_FORMAT_SLINEAR; ast_log(LOG_DEBUG,"%s: Record using default format [%s]\n", p->dev, ast2vpbformatname(afmt)); } fmt = ast2vpbformat(afmt); if (fmt < 0) { ast_log(LOG_WARNING,"%s: Record failure (unsupported format %d)\n", p->dev, afmt); return NULL; } readlen = VPB_SAMPLES * astformatbits(afmt) / 8; if (p->lastinput == -1) { vpb_record_buf_start(p->handle, fmt); vpb_reset_record_fifo_alarm(p->handle); if(option_verbose>1) ast_verbose( VERBOSE_PREFIX_2 "%s: Starting record mode (codec=%d)[%s]\n",p->dev,fmt,ast2vpbformatname(afmt)); } else if (p->lastinput != fmt) { vpb_record_buf_finish(p->handle); vpb_record_buf_start(p->handle, fmt); if(option_verbose>1) ast_verbose( VERBOSE_PREFIX_2 "%s: Changed record format (%d=>%d)\n",p->dev,p->lastinput,fmt); } p->lastinput = fmt; /* Read only if up and not bridged, or a bridge for which we can read. */ if (option_verbose > 5) { ast_verbose("%s: chanreads: getting buffer!\n", p->dev); } if( (res = vpb_record_buf_sync(p->handle, readbuf, readlen) ) == VPB_OK ) { if (option_verbose > 5) { ast_verbose("%s: chanreads: got buffer!\n", p->dev); } // Apply extra gain ! if( p->rxswgain > MAX_VPB_GAIN ) a_gain_vector(p->rxswgain - MAX_VPB_GAIN , (short*)readbuf, readlen/sizeof(short)); if (option_verbose > 5) { ast_verbose("%s: chanreads: applied gain\n", p->dev); } fr->subclass = afmt; fr->data = readbuf; fr->datalen = readlen; // Using trylock here to prevent deadlock when channel is hungup // (ast_hangup() immediately gets lock) if (p->owner && !p->stopreads ) { if (option_verbose > 5) { ast_verbose("%s: chanreads: queueing buffer on read frame q (state[%d])\n", p->dev,p->owner->_state); } do { res = ast_mutex_trylock(&p->owner->lock); trycnt++; } while((res !=0)&&(trycnt<300)); if (res==0) { ast_queue_frame(p->owner, fr); ast_mutex_unlock(&p->owner->lock); } else { if (option_verbose > 4) ast_verbose("%s: chanreads: Couldnt get lock after %d tries!\n", p->dev,trycnt); } trycnt=0; /* res = ast_mutex_trylock(&p->owner->lock); // res=0; if (res==0) { ast_queue_frame(p->owner, fr); ast_mutex_unlock(&p->owner->lock); } else { if (res == EINVAL ) if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res); else if (res == EBUSY ) if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res); while(res !=0){ res = ast_mutex_trylock(&p->owner->lock); } if (res==0) { ast_queue_frame(p->owner, fr); ast_mutex_unlock(&p->owner->lock); } else { if (res == EINVAL ) if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev,res); else if (res == EBUSY ) if (option_verbose > 4) ast_verbose("%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev,res); 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); //assert(p->dev!=p->dev); } } */ if (option_verbose > 6) { short * data = (short*)readbuf; ast_verbose("%s: Read channel (codec=%d) %d %d\n", p->dev, fmt, data[0], data[1] ); } } else { if (option_verbose > 4) { ast_verbose("%s: p->stopreads[%d] p->owner[%p]\n", p->dev, p->stopreads,(void *)p->owner); } } } else { ast_log(LOG_WARNING,"%s: Record failure (%s)\n", p->dev, vpb_strerror(res)); vpb_record_buf_finish(p->handle); vpb_record_buf_start(p->handle, fmt); } if (option_verbose > 4) ast_verbose("%s: chanreads: Finished cycle...\n", p->dev); } p->read_state=0; /* When stopreads seen, go away! */ vpb_record_buf_finish(p->handle); p->read_state=0; ast_mutex_unlock(&p->record_lock); if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 "%s: Ending record mode (%d/%s)\n", p->dev, p->stopreads, p->owner? "yes" : "no"); return NULL; } static struct ast_channel *vpb_new(struct vpb_pvt *me, int state, char *context) { struct ast_channel *tmp; if (me->owner) { ast_log(LOG_WARNING, "Called vpb_new on owned channel (%s) ?!\n", me->dev); return NULL; } if (option_verbose > 3) ast_verbose("%s: New call for context [%s]\n",me->dev,context); tmp = ast_channel_alloc(1); if (tmp) { strncpy(tmp->name, me->dev, sizeof(tmp->name) - 1); tmp->type = type; // Linear is the preferred format. Although Voicetronix supports other formats // they are all converted to/from linear in the vpb code. Best for us to use // linear since we can then adjust volume in this modules. tmp->nativeformats = prefformat; tmp->pvt->rawreadformat = AST_FORMAT_SLINEAR; tmp->pvt->rawwriteformat = AST_FORMAT_SLINEAR; ast_setstate(tmp, state); if (state == AST_STATE_RING) tmp->rings = 1; tmp->pvt->pvt = me; /* set call backs */ tmp->pvt->send_digit = vpb_digit; tmp->pvt->call = vpb_call; tmp->pvt->hangup = vpb_hangup; tmp->pvt->answer = vpb_answer; tmp->pvt->read = vpb_read; tmp->pvt->write = vpb_write; tmp->pvt->bridge = vpb_bridge; tmp->pvt->indicate = vpb_indicate; tmp->pvt->fixup = vpb_fixup; strncpy(tmp->context, context, sizeof(tmp->context)-1); if (strlen(me->ext)) strncpy(tmp->exten, me->ext, sizeof(tmp->exten)-1); else strncpy(tmp->exten, "s", sizeof(tmp->exten) - 1); if (strlen(me->language)) strncpy(tmp->language, me->language, sizeof(tmp->language)-1); me->owner = tmp; me->bridge = NULL; me->lastoutput = -1; me->lastinput = -1; me->last_ignore_dtmf = 1; me->readthread = 0; me->play_dtmf[0] = '\0'; me->lastgrunt = get_time_in_ms(); /* Assume at least one grunt tone seen now. */ ast_mutex_lock(&usecnt_lock); usecnt++; ast_mutex_unlock(&usecnt_lock); ast_update_use_count(); if (state != AST_STATE_DOWN) { if (ast_pbx_start(tmp)) { ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name); ast_hangup(tmp); } } } else { ast_log(LOG_WARNING, "Unable to allocate channel structure\n"); } return tmp; } static struct ast_channel *vpb_request(char *type, int format, void *data) { int oldformat; struct vpb_pvt *p; struct ast_channel *tmp = NULL; char *name = strdup(data ? (char *)data : ""); char *s, *sepstr; int group=-1; oldformat = format; format &= prefformat; if (!format) { ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat); return NULL; } sepstr = name; s = strsep(&sepstr, "/"); /* Handle / issues */ if (!s) s = ""; /* Check if we are looking for a group */ if (toupper(name[0]) == 'G' || toupper(name[0])=='R') { group=atoi(name+1); } /* Search for an unowned channel */ ast_mutex_lock(&iflock); { p = iflist; while(p) { if (group == -1){ if (strncmp(s, p->dev + 4, sizeof p->dev) == 0) { if (!p->owner) { tmp = vpb_new(p, AST_STATE_DOWN, p->context); break; } } } else { if ((p->group == group) && (!p->owner)) { tmp = vpb_new(p, AST_STATE_DOWN, p->context); break; } } p = p->next; } } ast_mutex_unlock(&iflock); if (option_verbose > 1) ast_verbose(VERBOSE_PREFIX_2 " %s requested, got: [%s]\n", name, tmp ? tmp->name : "None"); free(name); restart_monitor(); return tmp; } static float parse_gain_value(char *gain_type, char *value) { float gain; /* try to scan number */ if (sscanf(value, "%f", &gain) != 1) { ast_log(LOG_ERROR, "Invalid %s value '%s' in '%s' config\n", value, gain_type, config); return DEFAULT_GAIN; } /* percentage? */ //if (value[strlen(value) - 1] == '%') // return gain / (float)100; return gain; } int load_module() { struct ast_config *cfg; struct ast_variable *v; struct vpb_pvt *tmp; int board = 0, group = 0; int mode = MODE_IMMEDIATE; float txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN; float txswgain = 0, rxswgain = 0; int first_channel = 1; int echo_cancel = DEFAULT_ECHO_CANCEL; int error = 0; /* Error flag */ int bal1 = -1; // Special value - means do not set int bal2 = -1; int bal3 = -1; char * callerid = NULL; cfg = ast_load(config); /* We *must* have a config file otherwise stop immediately */ if (!cfg) { ast_log(LOG_ERROR, "Unable to load config %s\n", config); return -1; } vpb_seterrormode(VPB_ERROR_CODE); ast_mutex_lock(&iflock); { v = ast_variable_browse(cfg, "interfaces"); while(v) { /* Create the interface list */ if (strcasecmp(v->name, "board") == 0) { board = atoi(v->value); } else if (strcasecmp(v->name, "group") == 0){ group = atoi(v->value); } else if (strcasecmp(v->name, "useloopdrop") == 0){ UseLoopDrop = atoi(v->value); } else if (strcasecmp(v->name, "usenativebridge") == 0){ UseNativeBridge = atoi(v->value); } else if (strcasecmp(v->name, "channel") == 0) { int channel = atoi(v->value); tmp = mkif(board, channel, mode, txgain, rxgain, txswgain, rxswgain, bal1, bal2, bal3, callerid, echo_cancel,group); if (tmp) { if(first_channel) { mkbrd( tmp->vpb_model, echo_cancel ); first_channel = 0; } tmp->next = iflist; iflist = tmp; } else { ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value); error = -1; goto done; } callerid = NULL; } else if (strcasecmp(v->name, "language") == 0) { strncpy(language, v->value, sizeof(language)-1); } else if (strcasecmp(v->name, "callerid") == 0) { callerid = strdup(v->value); } else if (strcasecmp(v->name, "mode") == 0) { if (strncasecmp(v->value, "di", 2) == 0) mode = MODE_DIALTONE; else if (strncasecmp(v->value, "im", 2) == 0) mode = MODE_IMMEDIATE; else if (strncasecmp(v->value, "fx", 2) == 0) mode = MODE_FXO; else ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value); } else if (!strcasecmp(v->name, "context")) { strncpy(context, v->value, sizeof(context)-1); } else if (!strcasecmp(v->name, "echocancel")) { if (!strcasecmp(v->value, "off")) echo_cancel = 0; } else if (strcasecmp(v->name, "txgain") == 0) { txswgain = parse_gain_value(v->name, v->value); } else if (strcasecmp(v->name, "rxgain") == 0) { rxswgain = parse_gain_value(v->name, v->value); } else if (strcasecmp(v->name, "txhwgain") == 0) { txgain = parse_gain_value(v->name, v->value); } else if (strcasecmp(v->name, "rxhwgain") == 0) { rxgain = parse_gain_value(v->name, v->value); } else if (strcasecmp(v->name, "bal1") == 0) { bal1 = strtol(v->value, NULL, 16); if(bal1<0 || bal1>255) { ast_log(LOG_WARNING, "Bad bal1 value: %d\n", bal1); bal1 = -1; } } else if (strcasecmp(v->name, "bal2") == 0) { bal2 = strtol(v->value, NULL, 16); if(bal2<0 || bal2>255) { ast_log(LOG_WARNING, "Bad bal2 value: %d\n", bal2); bal2 = -1; } } else if (strcasecmp(v->name, "bal3") == 0) { bal3 = strtol(v->value, NULL, 16); if(bal3<0 || bal3>255) { ast_log(LOG_WARNING, "Bad bal3 value: %d\n", bal3); bal3 = -1; } } else if (strcasecmp(v->name, "grunttimeout") == 0) { gruntdetect_timeout = 1000*atoi(v->value); } v = v->next; } if (gruntdetect_timeout < 1000) gruntdetect_timeout = 1000; done: (void)0; } ast_mutex_unlock(&iflock); ast_destroy(cfg); if (!error && ast_channel_register(type, tdesc, prefformat, vpb_request) != 0) { ast_log(LOG_ERROR, "Unable to register channel class %s\n", type); error = -1; } if (error) unload_module(); else restart_monitor(); /* And start the monitor for the first time */ return error; } int unload_module() { struct vpb_pvt *p; /* First, take us out of the channel loop */ ast_channel_unregister(type); ast_mutex_lock(&iflock); { /* Hangup all interfaces if they have an owner */ p = iflist; while(p) { if (p->owner) ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD); p = p->next; } iflist = NULL; } ast_mutex_unlock(&iflock); ast_mutex_lock(&monlock); { if (mthreadactive > -1) { pthread_cancel(monitor_thread); pthread_join(monitor_thread, NULL); } mthreadactive = -2; } ast_mutex_unlock(&monlock); ast_mutex_lock(&iflock); { /* Destroy all the interfaces and free their memory */ while(iflist) { p = iflist; ast_mutex_destroy(&p->lock); pthread_cancel(p->readthread); ast_mutex_destroy(&p->owner_lock); ast_mutex_destroy(&p->record_lock); ast_mutex_destroy(&p->play_lock); ast_mutex_destroy(&p->play_dtmf_lock); p->readthread = 0; vpb_close(p->handle); iflist = iflist->next; free(p); } iflist = NULL; } ast_mutex_unlock(&iflock); ast_mutex_lock(&bridge_lock); { memset(bridges, 0, sizeof bridges); } ast_mutex_unlock(&bridge_lock); ast_mutex_destroy(&bridge_lock); for(int i = 0; i < max_bridges; i++ ) { ast_mutex_destroy(&bridges[i].lock); pthread_cond_destroy(&bridges[i].cond); } free(bridges); return 0; } int usecount() { int res; ast_mutex_lock(&usecnt_lock); res = usecnt; ast_mutex_unlock(&usecnt_lock); return res; } char *description() { return desc; } char *key() { return ASTERISK_GPL_KEY; } /* #if defined(__cplusplus) || defined(c_plusplus) } #endif */