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asterisk/channels/chan_vpb.c

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/*
* Asterisk -- A telephony toolkit for Linux.
*
* VoiceTronix Interface driver
*
* Copyright (C) 2003, Paul Bagyenda
* Paul Bagyenda <bagyenda@dsmagic.com>
* Copyright (C) 2004, Ben Kramer
* Ben Kramer <ben@voicetronix.com.au>
*
* Daniel Bichara <daniel@bichara.com.br> - Brazilian CallerID detection (c)2004
*
* Welber Silveira - welberms@magiclink.com.br - (c)2004
* Copying CLID string to propper structure after detection
*
* This program is free software, distributed under the terms of
* the GNU General Public License
*/
extern "C" {
#include <stdio.h>
#include <string.h>
#include <asterisk/lock.h>
#include <asterisk/utils.h>
#include <asterisk/channel.h>
#include <asterisk/channel_pvt.h>
#include <asterisk/config.h>
#include <asterisk/logger.h>
#include <asterisk/module.h>
#include <asterisk/pbx.h>
#include <asterisk/options.h>
#include <asterisk/callerid.h>
}
#include <sys/socket.h>
#include <sys/time.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <ctype.h>
#include <vpbapi.h>
#include <assert.h>
#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! */
/* These are the tones that are played to the user */
#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;
/* Use Asterisk Indication or VPB */
static int use_ast_ind=0;
#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 brcallerpos; /* Brazilian CallerID detection */
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;
struct ast_channel *cs[3];
struct ast_channel *who;
int to = -1;
struct ast_frame *f;
cs[0] = c0;
cs[1] = c1;
#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, "vpb_bridge: 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 "vpb_bridge: Bridging call entered with [%s, %s]\n", c0->name, c1->name);
}
#ifdef HALF_DUPLEX_BRIDGE
if (option_verbose>1)
ast_verbose(VERBOSE_PREFIX_2 "vpb_bridge: 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 "vpb_bridge: 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 ) {
// Are we really ment to be doing nothing ?!?!
who = ast_waitfor_n(cs, 2, &to);
if (!who) {
ast_log(LOG_DEBUG, "vpb_bridge: Empty frame read...\n");
/* check for hangup / whentohangup */
if (ast_check_hangup(c0) || ast_check_hangup(c1))
break;
continue;
}
f = ast_read(who);
if (!f || ((f->frametype == AST_FRAME_DTMF) &&
(((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) ||
((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1))))) {
*fo = f;
*rc = who;
ast_log(LOG_DEBUG, "vpb_bridge: Got a [%s]\n", f ? "digit" : "hangup");
/*
if ((c0->pvt->pvt == pvt0) && (!c0->_softhangup)) {
if (pr0->set_rtp_peer(c0, NULL, NULL, 0))
ast_log(LOG_WARNING, "Channel '%s' failed to revert\n", c0->name);
}
if ((c1->pvt->pvt == pvt1) && (!c1->_softhangup)) {
if (pr1->set_rtp_peer(c1, NULL, NULL, 0))
ast_log(LOG_WARNING, "Channel '%s' failed to revert back\n", c1->name);
}
*/
/* That's all we needed */
//return 0;
break;
} else {
if ((f->frametype == AST_FRAME_DTMF) ||
(f->frametype == AST_FRAME_VOICE) ||
(f->frametype == AST_FRAME_VIDEO))
{
/* Forward voice or DTMF frames if they happen upon us */
/* Actually I dont think we want to forward on any frames!
if (who == c0) {
ast_write(c1, f);
} else if (who == c1) {
ast_write(c0, f);
}
*/
}
ast_frfree(f);
}
/* Swap priority not that it's a big deal at this point */
cs[2] = cs[0];
cs[0] = cs[1];
cs[1] = cs[2];
};
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;
struct ast_channel *owner = p->owner;
void * ws;
char * file="cidsams.wav";
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");
// 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);
/*
vpb_wave_open_write(&ws, file, VPB_LINEAR);
vpb_wave_write(ws,(char*)buf,sizeof(buf));
vpb_wave_close_write(ws);
*/
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;
}
VPB_CID *cli_struct = new VPB_CID;
cli_struct->ra_cldn[0]=0;
cli_struct->ra_cn[0]=0;
// This decodes FSK 1200baud type callerid
if ((rc=vpb_cid_decode2(cli_struct, buf, CID_MSECS*8)) == VPB_OK ) {
if (owner->cid.cid_num)
free(owner->cid.cid_num);
owner->cid.cid_num=NULL;
if (owner->cid.cid_name)
free(owner->cid.cid_name);
owner->cid.cid_name=NULL;
if (cli_struct->ra_cldn[0]=='\0'){
owner->cid.cid_num = strdup(cli_struct->cldn);
owner->cid.cid_name = strdup(cli_struct->cn);
if (option_verbose>3)
ast_verbose(VERBOSE_PREFIX_4 "CID record - got [%s] [%s]\n",owner->cid.cid_num,owner->cid.cid_name );
}
else {
ast_log(LOG_ERROR,"CID record - No caller id avalable on %s \n", p->dev);
}
} else {
ast_log(LOG_ERROR, "CID record - Failed to decode caller id on %s - %s\n", p->dev, vpb_strerror(rc) );
strncpy(callerid,"unknown", sizeof(callerid) - 1);
}
delete cli_struct;
} else
ast_log(LOG_ERROR, "CID record - Failed to set record mode for caller id on %s\n", p->dev );
}
static void get_callerid_ast(struct vpb_pvt *p)
{
struct callerid_state *cs;
char buf[1024];
char *name=NULL, *number=NULL;
int flags;
int rc=0,vrc;
int sam_count=0;
struct ast_channel *owner = p->owner;
float old_gain;
int which_cid;
void * ws;
char * file="cidsams.wav";
if(!strcasecmp(p->callerid, "on")) {
if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collected caller ID already\n");
return;
}
else if(!strcasecmp(p->callerid, "v23")) {
which_cid=CID_SIG_V23;
if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID v23[%s/%d]...\n",p->callerid,which_cid);
}
else if(!strcasecmp(p->callerid, "bell")) {
which_cid=CID_SIG_BELL;
if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID bell[%s/%d]...\n",p->callerid,which_cid);
}
else {
if (option_verbose>3)
ast_verbose(VERBOSE_PREFIX_4 "Caller ID disabled\n");
return;
}
if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID type[%s/%d]...\n",p->callerid,which_cid);
// vpb_sleep(RING_SKIP);
// vpb_record_get_gain(p->handle, &old_gain);
cs = callerid_new(which_cid);
if (cs){
// vpb_wave_open_write(&ws, file, VPB_MULAW);
// vpb_record_set_gain(p->handle, 3.0);
// vpb_record_set_hw_gain(p->handle,12.0);
vpb_record_buf_start(p->handle, VPB_MULAW);
while((rc == 0)&&(sam_count<8000*3)){
vrc = vpb_record_buf_sync(p->handle, (char*)buf, sizeof(buf));
if (vrc != VPB_OK)
ast_log(LOG_ERROR, "%s: Caller ID couldnt read audio buffer!\n",p->dev);
rc = callerid_feed(cs,(unsigned char *)buf,sizeof(buf),AST_FORMAT_ULAW);
vpb_wave_write(ws,(char*)buf,sizeof(buf));
sam_count+=sizeof(buf);
if (option_verbose>3) ast_verbose(VERBOSE_PREFIX_4 "Collecting Caller ID samples [%d][%d]...\n",sam_count,rc);
}
vpb_record_buf_finish(p->handle);
// vpb_wave_close_write(ws);
if (rc == 1){
callerid_get(cs, &name, &number, &flags);
if (option_verbose>0)
ast_verbose(VERBOSE_PREFIX_1 "%s: Caller ID name [%s] number [%s] flags [%d]\n",p->dev,name, number,flags);
}
else {
ast_log(LOG_ERROR, "%s: Failed to decode Caller ID \n", p->dev );
}
// vpb_record_set_gain(p->handle, old_gain);
// vpb_record_set_hw_gain(p->handle,6.0);
}
else {
ast_log(LOG_ERROR, "%s: Failed to create Caller ID struct\n", p->dev );
}
if (owner->cid.cid_num) {
free(owner->cid.cid_num);
owner->cid.cid_num = NULL;
}
if (owner->cid.cid_name) {
free(owner->cid.cid_name);
owner->cid.cid_name = NULL;
}
if (number)
ast_shrink_phone_number(number);
if (number && !ast_strlen_zero(number)) {
owner->cid.cid_num = strdup(number);
owner->cid.cid_ani = strdup(number);
}
if (name && !ast_strlen_zero(name))
owner->cid.cid_name = strdup(name);
if (cs)
callerid_free(cs);
}
// 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 (option_verbose > 3)
ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: got event: BUSY\n", p->dev);
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("%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;
}
if (option_verbose > 3)
ast_verbose(VERBOSE_PREFIX_4 "%s: handle_owned: Prepared frame type[%d]subclass[%d], bridge=%p owner=[%s]\n",
p->dev, f.frametype, f.subclass, (void *)p->bridge, p->owner->name);
// 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);
if (option_verbose > 3)
ast_verbose(VERBOSE_PREFIX_4 "%s: handled_owned: Queued Frame to [%s]\n", p->dev,p->owner->name);
} 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);
if(!strcasecmp(p->callerid, "on")) {
if (option_verbose>3)
ast_verbose(VERBOSE_PREFIX_4 "Using VPB Caller ID\n");
get_callerid(p); // Australian Caller ID only between 1st and 2nd ring
}
get_callerid_ast(p); // Caller ID using the ast functions
}
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)){
if (option_verbose > 3) {
ast_verbose(VERBOSE_PREFIX_4 "%s: handle_notowned: Matched on [%s] in [%s]\n", p->dev,p->ext , p->context);
}
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); {
if (e.type == VPB_NULL_EVENT) {
if (option_verbose > 3)
ast_verbose(VERBOSE_PREFIX_4 "Monitor got null event\n");
}
else {
vpb_translate_event(&e, str);
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 );
}
} 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");
}
else {
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;
} else
mthreadactive = 0; /* Started the thread!*/
}
}
} 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){
if (use_ast_ind == 1)
ast_indicate(newchan, AST_CONTROL_RINGING);
else
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 > 3)
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_verbose( VERBOSE_PREFIX_2 "%s: Answered call on %s [%s]\n", p->dev,
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 > 3)
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<n; i++) {
tmp = g*v[i];
if (tmp > 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 ( (p->owner->_state != AST_STATE_UP) ) {
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 );
if (strcmp(p->owner->type,"vpb")==0){
vpb_dial_sync(p->handle,p->play_dtmf);
if(option_verbose>1)
ast_verbose( VERBOSE_PREFIX_2 "%s: chanreads: Played DTMF %s\n",p->dev,p->play_dtmf);
}
else {
if (option_verbose > 1)
ast_verbose(VERBOSE_PREFIX_2 "%s: chanreads: Not playing DTMF frame on native bridge\n", p->dev);
}
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;
if (use_ast_ind == 0)
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(const char *type, int format, void *data, int *cause)
{
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, "general");
while (v){
if (strcasecmp(v->name, "cards") == 0) {
ast_log(LOG_NOTICE,"VPB Driver configured to use [%d] cards\n",atoi(v->value));
}
else if (strcasecmp(v->name, "indication") == 0) {
use_ast_ind = 1;
ast_log(LOG_NOTICE,"VPB driver using Asterisk Indication functions!\n");
}
v = v->next;
}
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
/**/
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