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asterisk/channels/chan_vpb.cc

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v18.15.1
2023-05-25 18:45:57 +00:00
/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2003, Paul Bagyenda
* Paul Bagyenda <bagyenda@dsmagic.com>
* Copyright (C) 2004 - 2005, 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
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief VoiceTronix Interface driver
*
* \ingroup channel_drivers
*/
/*! \li \ref chan_vpb.cc uses the configuration file \ref vpb.conf
* \addtogroup configuration_file
*/
/*! \page vpb.conf vpb.conf
* \verbinclude vpb.conf.sample
*/
/*
* XXX chan_vpb needs its native bridge code converted to the
* new bridge technology scheme. The chan_dahdi native bridge
* code can be used as an example. It is unlikely that this
* will ever get done.
*
* The existing native bridge code is marked with the
* VPB_NATIVE_BRIDGING conditional.
*/
/*** MODULEINFO
<depend>vpb</depend>
<defaultenabled>no</defaultenabled>
<support_level>deprecated</support_level>
<deprecated_in>16</deprecated_in>
<removed_in>19</removed_in>
***/
#include <vpbapi.h>
extern "C" {
#include "asterisk.h"
#include "asterisk/lock.h"
#include "asterisk/utils.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/callerid.h"
#include "asterisk/dsp.h"
#include "asterisk/features.h"
#include "asterisk/musiconhold.h"
#include "asterisk/format_cache.h"
}
#include <sys/socket.h>
#include <sys/time.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <ctype.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
#define MIN_VPB_GAIN -12.0
#define DTMF_CALLERID
#define DTMF_CID_START 'D'
#define DTMF_CID_STOP 'C'
/**/
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
/**/
static const char tdesc[] = "Standard VoiceTronix API Driver";
static const 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 gruntdetect_timeout = 3600000; /* Grunt detect timeout is 1hr. */
/* 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
/* #define TONES_USA */
#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
#ifdef TONES_USA
static VPB_TONE Dialtone = {350, 440, 0, -16, -16, -100, 10000, 0};
static VPB_TONE Busytone = {480, 620, 0, -10, -10, -100, 500, 500};
static VPB_TONE Ringbacktone = {440, 480, 0, -20, -20, -100, 2000, 4000};
#endif
/* grunt tone defn's */
#if 0
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 } } };
#endif
static VPB_DETECT toned_ungrunt = { 2, VPB_GRUNT, 1, 2000, 1, 0, 0, -40, 0, 0, 30, 40, { { 0, 0, 0, 0 } } };
/* Use loop polarity detection for CID */
static int UsePolarityCID=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;
/* Use Asterisk DTMF detection or VPB */
static int use_ast_dtmfdet=0;
static int relaxdtmf=0;
/* Use Asterisk DTMF play back or VPB */
static int use_ast_dtmf=0;
/* Break for DTMF on native bridge ? */
static int break_for_dtmf=1;
/* Set EC suppression threshold */
static short ec_supp_threshold=-1;
/* Inter Digit Delay for collecting DTMF's */
static int dtmf_idd = 3000;
#define TIMER_PERIOD_RINGBACK 2000
#define TIMER_PERIOD_BUSY 700
#define TIMER_PERIOD_RING 4000
static int timer_period_ring = TIMER_PERIOD_RING;
#define VPB_EVENTS_ALL (VPB_MRING|VPB_MDIGIT|VPB_MDTMF|VPB_MTONEDETECT|VPB_MTIMEREXP \
|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_MSTATION_OFFHOOK|VPB_MSTATION_ONHOOK \
|VPB_MRING_OFF|VPB_MSTATION_FLASH)
#define VPB_EVENTS_NODTMF (VPB_MRING|VPB_MDIGIT|VPB_MTONEDETECT|VPB_MTIMEREXP \
|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_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, VPB_CALL_DISCONNECT, 0 },
{ VPB_DIAL, VPB_CALL_DIALTONE, 0 },
{ VPB_RINGBACK, VPB_CALL_RINGBACK, 0 },
{ VPB_BUSY, 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
#define VPB_GOT_RXHWG 1
#define VPB_GOT_TXHWG 2
#define VPB_GOT_RXSWG 4
#define VPB_GOT_TXSWG 8
typedef struct {
int inuse;
struct ast_channel *c0, *c1, **rc;
struct ast_frame **fo;
int flags;
ast_mutex_t lock;
ast_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 */
ast_group_t callgroup; /*!< Call group */
ast_group_t pickupgroup; /*!< Pickup group */
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 callerid_type; /*!< Caller ID type: 0=>none 1=>vpb 2=>AstV23 3=>AstBell */
char cid_num[AST_MAX_EXTENSION];
char cid_name[AST_MAX_EXTENSION];
int dtmf_caller_pos; /*!< DTMF CallerID detection (Brazil)*/
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 */
void *ring_timer; /*!< Void pointer for ring vpb_timer */
int ring_timer_id; /*!< unique timer ID for ring timer */
void *dtmfidd_timer; /*!< Void pointer for DTMF IDD vpb_timer */
int dtmfidd_timer_id; /*!< unique timer ID for DTMF IDD timer */
struct ast_dsp *vad; /*!< AST Voice Activation Detection dsp */
struct timeval lastgrunt; /*!< time stamp 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 */
struct timeval lastplay; /*!< Last play time */
ast_mutex_t play_dtmf_lock;
char play_dtmf[16];
int faxhandled; /*!< has a fax tone been handled ? */
struct vpb_pvt *next; /*!< Next channel in list */
} *iflist = NULL;
static struct ast_channel *vpb_new(struct vpb_pvt *i, enum ast_channel_state state, const char *context, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor);
static void *do_chanreads(void *pvt);
static struct ast_channel *vpb_request(const char *type, struct ast_format_cap *cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *data, int *cause);
static int vpb_digit_begin(struct ast_channel *ast, char digit);
static int vpb_digit_end(struct ast_channel *ast, char digit, unsigned int duration);
static int vpb_call(struct ast_channel *ast, const char *dest, int timeout);
static int vpb_hangup(struct ast_channel *ast);
static int vpb_answer(struct ast_channel *ast);
static struct ast_frame *vpb_read(struct ast_channel *ast);
static int vpb_write(struct ast_channel *ast, struct ast_frame *frame);
static int vpb_indicate(struct ast_channel *ast, int condition, const void *data, size_t datalen);
static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan);
static struct ast_channel_tech vpb_tech = {
.type = "vpb",
.description = tdesc,
.capabilities = NULL,
.properties = 0,
.requester = vpb_request,
.requester_with_stream_topology = NULL,
.devicestate = NULL,
.presencestate = NULL,
.send_digit_begin = vpb_digit_begin,
.send_digit_end = vpb_digit_end,
.call = vpb_call,
.hangup = vpb_hangup,
.answer = vpb_answer,
.answer_with_stream_topology = NULL,
.read = vpb_read,
.read_stream = NULL,
.write = vpb_write,
.write_stream = NULL,
.send_text = NULL,
.send_image = NULL,
.send_html = NULL,
.exception = NULL,
.early_bridge = NULL,
.indicate = vpb_indicate,
.fixup = vpb_fixup,
.setoption = NULL,
.queryoption = NULL,
.transfer = NULL,
.write_video = NULL,
.write_text = NULL,
.func_channel_read = NULL,
.func_channel_write = NULL,
};
static struct ast_channel_tech vpb_tech_indicate = {
.type = "vpb",
.description = tdesc,
.capabilities = NULL,
.properties = 0,
.requester = vpb_request,
.requester_with_stream_topology = NULL,
.devicestate = NULL,
.presencestate = NULL,
.send_digit_begin = vpb_digit_begin,
.send_digit_end = vpb_digit_end,
.call = vpb_call,
.hangup = vpb_hangup,
.answer = vpb_answer,
.answer_with_stream_topology = NULL,
.read = vpb_read,
.read_stream = NULL,
.write = vpb_write,
.write_stream = NULL,
.send_text = NULL,
.send_image = NULL,
.send_html = NULL,
.exception = NULL,
.early_bridge = NULL,
.indicate = NULL,
.fixup = vpb_fixup,
.setoption = NULL,
.queryoption = NULL,
.transfer = NULL,
.write_video = NULL,
.write_text = NULL,
.func_channel_read = NULL,
.func_channel_write = NULL,
};
#if defined(VPB_NATIVE_BRIDGING)
/* Can't get ast_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 enum ast_bridge_result ast_vpb_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc, int timeoutms)
{
struct vpb_pvt *p0 = (struct vpb_pvt *)ast_channel_tech_pvt(c0);
struct vpb_pvt *p1 = (struct vpb_pvt *)ast_channel_tech_pvt(c1);
int i;
int res;
struct ast_channel *cs[3];
struct ast_channel *who;
struct ast_frame *f;
cs[0] = c0;
cs[1] = c1;
#ifdef BAD_V4PCI_BRIDGE
if (p0->vpb_model == vpb_model_v4pci)
return AST_BRIDGE_FAILED_NOWARN;
#endif
if (UseNativeBridge != 1) {
return AST_BRIDGE_FAILED_NOWARN;
}
/*
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, "%s: vpb_bridge: Failed to bridge %s and %s!\n", p0->dev, ast_channel_name(c0), ast_channel_name(c1));
ast_mutex_unlock(&p0->lock);
ast_mutex_unlock(&p1->lock);
return AST_BRIDGE_FAILED_NOWARN;
} 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);
ast_verb(2, "%s: vpb_bridge: Bridging call entered with [%s, %s]\n", p0->dev, ast_channel_name(c0), ast_channel_name(c1));
}
ast_verb(3, "Native bridging %s and %s\n", ast_channel_name(c0), ast_channel_name(c1));
#ifdef HALF_DUPLEX_BRIDGE
ast_debug(2, "%s: vpb_bridge: Starting half-duplex bridge [%s, %s]\n", p0->dev, ast_channel_name(c0), ast_channel_name(c1));
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);
ast_debug(2, "%s: vpb_bridge: Finished half-duplex bridge [%s, %s]\n", p0->dev, ast_channel_name(c0), ast_channel_name(c1));
res = VPB_OK;
#else
res = vpb_bridge(p0->handle, p1->handle, VPB_BRIDGE_ON);
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, &timeoutms);
if (!who) {
if (!timeoutms) {
res = AST_BRIDGE_RETRY;
break;
}
ast_debug(1, "%s: vpb_bridge: Empty frame read...\n", p0->dev);
/* 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_debug(1, "%s: vpb_bridge: Got a [%s]\n", p0->dev, f ? "digit" : "hangup");
#if 0
if ((c0->tech_pvt == pvt0) && (!ast_check_hangup(c0))) {
if (pr0->set_rtp_peer(c0, NULL, NULL, 0))
ast_log(LOG_WARNING, "Channel '%s' failed to revert\n", c0->name);
}
if ((c1->tech_pvt == pvt1) && (!ast_check_hangup(c1))) {
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;
#endif
/* Check if we need to break */
if (break_for_dtmf) {
break;
} else if ((f->frametype == AST_FRAME_DTMF) && ((f->subclass.integer == '#') || (f->subclass.integer == '*'))) {
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);
}
#endif
ast_mutex_lock(&bridge_lock);
bridges[i].inuse = 0;
ast_mutex_unlock(&bridge_lock);
p0->bridge = NULL;
p1->bridge = NULL;
ast_verb(2, "Bridging call done with [%s, %s] => %d\n", ast_channel_name(c0), ast_channel_name(c1), res);
/*
ast_mutex_unlock(&p0->lock);
ast_mutex_unlock(&p1->lock);
*/
return (res == VPB_OK) ? AST_BRIDGE_COMPLETE : AST_BRIDGE_FAILED;
}
#endif /* defined(VPB_NATIVE_BRIDGING) */
/* 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 300
#define CID_MSECS 2000
static void get_callerid(struct vpb_pvt *p)
{
short buf[CID_MSECS*8]; /* 8kHz sampling rate */
struct timeval cid_record_time;
int rc;
struct ast_channel *owner = p->owner;
/*
char callerid[AST_MAX_EXTENSION] = "";
*/
#ifdef ANALYSE_CID
void * ws;
char * file="cidsams.wav";
#endif
if (ast_mutex_trylock(&p->record_lock) == 0) {
cid_record_time = ast_tvnow();
ast_verb(4, "CID record - start\n");
/* Skip any trailing ringtone */
if (UsePolarityCID != 1){
vpb_sleep(RING_SKIP);
}
ast_verb(4, "CID record - skipped %lldms trailing ring\n",
(long long int) ast_tvdiff_ms(ast_tvnow(), cid_record_time));
cid_record_time = ast_tvnow();
/* 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);
#ifdef ANALYSE_CID
vpb_wave_open_write(&ws, file, VPB_LINEAR);
vpb_wave_write(ws, (char *)buf, sizeof(buf));
vpb_wave_close_write(ws);
#endif
ast_verb(4, "CID record - recorded %lldms between rings\n",
(long long int) ast_tvdiff_ms(ast_tvnow(), 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)
ast_free(owner->cid.cid_num);
owner->cid.cid_num=NULL;
if (owner->cid.cid_name)
ast_free(owner->cid.cid_name);
owner->cid.cid_name=NULL;
*/
if (cli_struct->ra_cldn[0] == '\0') {
/*
owner->cid.cid_num = ast_strdup(cli_struct->cldn);
owner->cid.cid_name = ast_strdup(cli_struct->cn);
*/
if (owner) {
ast_set_callerid(owner, cli_struct->cldn, cli_struct->cn, cli_struct->cldn);
} else {
strcpy(p->cid_num, cli_struct->cldn);
strcpy(p->cid_name, cli_struct->cn);
}
ast_verb(4, "CID record - got [%s] [%s]\n",
S_COR(ast_channel_caller(owner)->id.number.valid, ast_channel_caller(owner)->id.number.str, ""),
S_COR(ast_channel_caller(owner)->id.name.valid, ast_channel_caller(owner)->id.name.str, ""));
snprintf(p->callerid, sizeof(p->callerid), "%s %s", cli_struct->cldn, cli_struct->cn);
} 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 - %d\n", p->dev, rc);
ast_copy_string(p->callerid, "unknown", sizeof(p->callerid));
}
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;
int which_cid;
/*
float old_gain;
*/
#ifdef ANALYSE_CID
void * ws;
char * file = "cidsams.wav";
#endif
if (p->callerid_type == 1) {
ast_verb(4, "Collected caller ID already\n");
return;
}
else if (p->callerid_type == 2 ) {
which_cid = CID_SIG_V23;
ast_verb(4, "Collecting Caller ID v23...\n");
}
else if (p->callerid_type == 3) {
which_cid = CID_SIG_BELL;
ast_verb(4, "Collecting Caller ID bell...\n");
} else {
ast_verb(4, "Caller ID disabled\n");
return;
}
/* vpb_sleep(RING_SKIP); */
/* vpb_record_get_gain(p->handle, &old_gain); */
cs = callerid_new(which_cid);
if (cs) {
#ifdef ANALYSE_CID
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);
#endif
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 couldn't read audio buffer!\n", p->dev);
rc = callerid_feed(cs, (unsigned char *)buf, sizeof(buf), ast_format_ulaw);
#ifdef ANALYSE_CID
vpb_wave_write(ws, (char *)buf, sizeof(buf));
#endif
sam_count += sizeof(buf);
ast_verb(4, "Collecting Caller ID samples [%d][%d]...\n", sam_count, rc);
}
vpb_record_buf_finish(p->handle);
#ifdef ANALYSE_CID
vpb_wave_close_write(ws);
#endif
if (rc == 1) {
callerid_get(cs, &name, &number, &flags);
ast_debug(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);
}
ast_party_number_free(&ast_channel_caller(owner)->id.number);
ast_party_number_init(&ast_channel_caller(owner)->id.number);
ast_party_name_free(&ast_channel_caller(owner)->id.name);
ast_party_name_init(&ast_channel_caller(owner)->id.name);
if (number)
ast_shrink_phone_number(number);
ast_set_callerid(owner,
number, name,
ast_channel_caller(owner)->ani.number.valid ? NULL : number);
if (!ast_strlen_zero(name)){
snprintf(p->callerid, sizeof(p->callerid), "%s %s", number, name);
} else {
ast_copy_string(p->callerid, number, sizeof(p->callerid));
}
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)) {
ast_verb(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);
ast_verb(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;
ast_verb(4, "%s: handle_owned: got event: [%d=>%d]\n", p->dev, e->type, e->data);
f.src = "vpb";
switch (e->type) {
case VPB_RING:
if (p->mode == MODE_FXO) {
f.subclass.integer = AST_CONTROL_RING;
vpb_timer_stop(p->ring_timer);
vpb_timer_start(p->ring_timer);
} else
f.frametype = AST_FRAME_NULL; /* ignore ring on station port. */
break;
case VPB_RING_OFF:
f.frametype = AST_FRAME_NULL;
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 = AST_FRAME_NULL;
} 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 = AST_FRAME_NULL;
} else if (e->data == p->ring_timer_id) {
/* We didnt get another ring in time! */
if (ast_channel_state(p->owner) != AST_STATE_UP) {
/* Assume caller has hung up */
vpb_timer_stop(p->ring_timer);
f.subclass.integer = AST_CONTROL_HANGUP;
} else {
vpb_timer_stop(p->ring_timer);
f.frametype = AST_FRAME_NULL;
}
} else {
f.frametype = AST_FRAME_NULL; /* Ignore. */
}
break;
case VPB_DTMF_DOWN:
case VPB_DTMF:
if (use_ast_dtmfdet) {
f.frametype = AST_FRAME_NULL;
} else if (ast_channel_state(p->owner) == AST_STATE_UP) {
f.frametype = AST_FRAME_DTMF;
f.subclass.integer = e->data;
} else
f.frametype = AST_FRAME_NULL;
break;
case VPB_TONEDETECT:
if (e->data == VPB_BUSY || e->data == VPB_BUSY_308 || e->data == VPB_BUSY_AUST ) {
ast_debug(4, "%s: handle_owned: got event: BUSY\n", p->dev);
if (ast_channel_state(p->owner) == AST_STATE_UP) {
f.subclass.integer = AST_CONTROL_HANGUP;
} else {
f.subclass.integer = AST_CONTROL_BUSY;
}
} else if (e->data == VPB_FAX) {
if (!p->faxhandled) {
if (strcmp(ast_channel_exten(p->owner), "fax")) {
const char *target_context = S_OR(ast_channel_macrocontext(p->owner), ast_channel_context(p->owner));
if (ast_exists_extension(p->owner, target_context, "fax", 1,
S_COR(ast_channel_caller(p->owner)->id.number.valid, ast_channel_caller(p->owner)->id.number.str, NULL))) {
ast_verb(3, "Redirecting %s to fax extension\n", ast_channel_name(p->owner));
/* Save the DID/DNIS when we transfer the fax call to a "fax" extension */
pbx_builtin_setvar_helper(p->owner, "FAXEXTEN", ast_channel_exten(p->owner));
if (ast_async_goto(p->owner, target_context, "fax", 1)) {
ast_log(LOG_WARNING, "Failed to async goto '%s' into fax of '%s'\n", ast_channel_name(p->owner), target_context);
}
} else {
ast_log(LOG_NOTICE, "Fax detected, but no fax extension\n");
}
} else {
ast_debug(1, "Already in a fax extension, not redirecting\n");
}
} else {
ast_debug(1, "Fax already handled\n");
}
} else if (e->data == VPB_GRUNT) {
if (ast_tvdiff_ms(ast_tvnow(), p->lastgrunt) > gruntdetect_timeout) {
/* Nothing heard on line for a very long time
* Timeout connection */
ast_verb(3, "grunt timeout\n");
ast_log(LOG_NOTICE, "%s: Line hangup due of lack of conversation\n", p->dev);
f.subclass.integer = AST_CONTROL_HANGUP;
} else {
p->lastgrunt = ast_tvnow();
f.frametype = AST_FRAME_NULL;
}
} else {
f.frametype = AST_FRAME_NULL;
}
break;
case VPB_CALLEND:
#ifdef DIAL_WITH_CALL_PROGRESS
if (e->data == VPB_CALL_CONNECTED) {
f.subclass.integer = AST_CONTROL_ANSWER;
} else if (e->data == VPB_CALL_NO_DIAL_TONE || e->data == VPB_CALL_NO_RING_BACK) {
f.subclass.integer = AST_CONTROL_CONGESTION;
} else if (e->data == VPB_CALL_NO_ANSWER || e->data == VPB_CALL_BUSY) {
f.subclass.integer = AST_CONTROL_BUSY;
} else if (e->data == VPB_CALL_DISCONNECTED) {
f.subclass.integer = AST_CONTROL_HANGUP;
}
#else
ast_log(LOG_NOTICE, "%s: Got call progress callback but blind dialing \n", p->dev);
f.frametype = AST_FRAME_NULL;
#endif
break;
case VPB_STATION_OFFHOOK:
f.subclass.integer = AST_CONTROL_ANSWER;
break;
case VPB_DROP:
if ((p->mode == MODE_FXO) && (UseLoopDrop)) { /* ignore loop drop on stations */
if (ast_channel_state(p->owner) == AST_STATE_UP) {
f.subclass.integer = AST_CONTROL_HANGUP;
} else {
f.frametype = AST_FRAME_NULL;
}
}
break;
case VPB_LOOP_ONHOOK:
if (ast_channel_state(p->owner) == AST_STATE_UP) {
f.subclass.integer = AST_CONTROL_HANGUP;
} else {
f.frametype = AST_FRAME_NULL;
}
break;
case VPB_STATION_ONHOOK:
f.subclass.integer = AST_CONTROL_HANGUP;
break;
case VPB_STATION_FLASH:
f.subclass.integer = 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.integer = AST_CONTROL_ANSWER;
ast_verb(2, "%s: Dialend\n", p->dev);
} else {
f.frametype = AST_FRAME_NULL;
}
break;
/* case VPB_PLAY_UNDERFLOW:
f.frametype = AST_FRAME_NULL;
vpb_reset_play_fifo_alarm(p->handle);
break;
case VPB_RECORD_OVERFLOW:
f.frametype = AST_FRAME_NULL;
vpb_reset_record_fifo_alarm(p->handle);
break;
*/
default:
f.frametype = AST_FRAME_NULL;
break;
}
/*
ast_verb(4, "%s: LOCKING in handle_owned [%d]\n", p->dev,res);
res = ast_mutex_lock(&p->lock);
ast_verb(4, "%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:
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;
ast_cond_signal(&p->bridge->cond);
ast_mutex_unlock(&p->bridge->lock);
}
}
if (endbridge) {
ast_mutex_unlock(&p->lock);
/*
ast_verb(4, "%s: unLOCKING in handle_owned [%d]\n", p->dev,res);
*/
return 0;
}
ast_verb(4, "%s: handle_owned: Prepared frame type[%d]subclass[%d], bridge=%p owner=[%s]\n",
p->dev, f.frametype, f.subclass.integer, (void *)p->bridge, ast_channel_name(p->owner));
/* 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_channel_trylock(p->owner) == 0) {
ast_queue_frame(p->owner, &f);
ast_channel_unlock(p->owner);
ast_verb(4, "%s: handled_owned: Queued Frame to [%s]\n", p->dev, ast_channel_name(p->owner));
} else {
ast_verbose("%s: handled_owned: Missed event %d/%d \n",
p->dev, f.frametype, f.subclass.integer);
}
}
ast_mutex_unlock(&p->lock);
/*
ast_verb(4, "%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};
struct ast_channel *owner = p->owner;
char cid_num[256];
char cid_name[256];
/*
struct ast_channel *c;
*/
char str[VPB_MAX_STR];
vpb_translate_event(e, str);
ast_verb(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_LOOP_ONHOOK:
case VPB_LOOP_POLARITY:
if (UsePolarityCID == 1) {
ast_verb(4, "Polarity reversal\n");
if (p->callerid_type == 1) {
ast_verb(4, "Using VPB Caller ID\n");
get_callerid(p); /* UK CID before 1st ring*/
}
/* get_callerid_ast(p); */ /* Caller ID using the ast functions */
}
break;
case VPB_RING:
if (p->mode == MODE_FXO) /* FXO port ring, start * */ {
vpb_new(p, AST_STATE_RING, p->context, NULL, NULL);
if (UsePolarityCID != 1) {
if (p->callerid_type == 1) {
ast_verb(4, "Using VPB Caller ID\n");
get_callerid(p); /* Australian CID only between 1st and 2nd ring */
}
get_callerid_ast(p); /* Caller ID using the ast functions */
} else {
ast_log(LOG_ERROR, "Setting caller ID: %s %s\n", p->cid_num, p->cid_name);
ast_set_callerid(p->owner, p->cid_num, p->cid_name, p->cid_num);
p->cid_num[0] = 0;
p->cid_name[0] = 0;
}
vpb_timer_stop(p->ring_timer);
vpb_timer_start(p->ring_timer);
}
break;
case VPB_RING_OFF:
break;
case VPB_STATION_OFFHOOK:
if (p->mode == MODE_IMMEDIATE) {
vpb_new(p,AST_STATE_RING, p->context, NULL, NULL);
} else {
ast_verb(4, "%s: handle_notowned: playing dialtone\n", p->dev);
playtone(p->handle, &Dialtone);
p->state = VPB_STATE_PLAYDIAL;
p->wantdtmf = 1;
p->ext[0] = 0; /* Just to be sure & paranoid.*/
}
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. */
}
#if 0
/* 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;
} else if (p->state == VPB_STATE_PLAYRING) {
playtone(p->handle, &Ringbacktone);
p->wantdtmf = 1;
p->ext[0] = 0;
}
#endif
} else {
ast_verb(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_TIMEREXP:
if (e->data == p->dtmfidd_timer_id) {
if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)){
ast_verb(4, "%s: handle_notowned: DTMF IDD timer out, matching on [%s] in [%s]\n", p->dev, p->ext, p->context);
vpb_new(p, AST_STATE_RING, p->context, NULL, NULL);
}
} else if (e->data == p->ring_timer_id) {
/* We didnt get another ring in time! */
if (p->owner) {
if (ast_channel_state(p->owner) != AST_STATE_UP) {
/* Assume caller has hung up */
vpb_timer_stop(p->ring_timer);
}
} else {
/* No owner any more, Assume caller has hung up */
vpb_timer_stop(p->ring_timer);
}
}
break;
case VPB_DTMF:
if (p->state == VPB_STATE_ONHOOK){
/* DTMF's being passed while on-hook maybe Caller ID */
if (p->mode == MODE_FXO) {
if (e->data == DTMF_CID_START) { /* CallerID Start signal */
p->dtmf_caller_pos = 0; /* Leaves the first digit out */
memset(p->callerid, 0, sizeof(p->callerid));
} else if (e->data == DTMF_CID_STOP) { /* CallerID End signal */
p->callerid[p->dtmf_caller_pos] = '\0';
ast_verb(3, " %s: DTMF CallerID %s\n", p->dev, p->callerid);
if (owner) {
/*
if (owner->cid.cid_num)
ast_free(owner->cid.cid_num);
owner->cid.cid_num=NULL;
if (owner->cid.cid_name)
ast_free(owner->cid.cid_name);
owner->cid.cid_name=NULL;
owner->cid.cid_num = strdup(p->callerid);
*/
cid_name[0] = '\0';
cid_num[0] = '\0';
ast_callerid_split(p->callerid, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
ast_set_callerid(owner, cid_num, cid_name, cid_num);
} else {
ast_verb(3, " %s: DTMF CallerID: no owner to assign CID \n", p->dev);
}
} else if (p->dtmf_caller_pos < AST_MAX_EXTENSION) {
if (p->dtmf_caller_pos >= 0) {
p->callerid[p->dtmf_caller_pos] = e->data;
}
p->dtmf_caller_pos++;
}
}
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 0
if (!strcmp(p->ext, ast_pickup_ext())) {
/* Call pickup has been dialled! */
if (ast_pickup_call(c)) {
/* Call pickup wasnt possible */
}
} else
#endif
if (ast_exists_extension(NULL, p->context, p->ext, 1, p->callerid)) {
if (ast_canmatch_extension(NULL, p->context, p->ext, 1, p->callerid)) {
ast_verb(4, "%s: handle_notowned: Multiple matches on [%s] in [%s]\n", p->dev, p->ext, p->context);
/* Start DTMF IDD timer */
vpb_timer_stop(p->dtmfidd_timer);
vpb_timer_start(p->dtmfidd_timer);
} else {
ast_verb(4, "%s: handle_notowned: Matched on [%s] in [%s]\n", p->dev, p->ext , p->context);
vpb_new(p, AST_STATE_UP, p->context, NULL, NULL);
}
} 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_UP, "default", NULL, NULL);
} else if (!ast_canmatch_extension(NULL, "default", p->ext, 1, p->callerid)) {
ast_verb(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;
}
ast_verb(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. */
ast_verb(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;
/*
ast_verb(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 (res == VPB_NO_EVENTS) {
ast_verb(4, "No events....\n");
} else {
ast_verb(4, "No events, timed out....\n");
}
*/
continue;
}
if (res != VPB_OK) {
ast_log(LOG_ERROR,"Monitor get event error %d\n", res );
ast_verbose("Monitor get event error %d\n", res );
continue;
}
str[0] = 0;
p = NULL;
ast_mutex_lock(&monlock);
if (e.type == VPB_NULL_EVENT) {
ast_verb(4, "Monitor got null event\n");
} else {
vpb_translate_event(&e, str);
if (*str && *(str + 1)) {
str[strlen(str) - 1] = '\0';
}
ast_mutex_lock(&iflock);
for (p = iflist; p && p->handle != e.handle; p = p->next);
ast_mutex_unlock(&iflock);
if (p) {
ast_verb(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);
ast_verb(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);
vpb_translate_event(&je, str);
ast_verb(5, "%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;
ast_verb(4, "Restarting monitor\n");
ast_mutex_lock(&monlock);
if (monitor_thread == pthread_self()) {
ast_log(LOG_WARNING, "Cannot kill myself\n");
error = -1;
ast_verb(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_EVT_NONE;
e.data = 0;
ast_verb(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);
ast_verb(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);
ast_verb(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 *)ast_calloc(1, max_bridges * sizeof(vpb_bridge_t));
if (!bridges) {
ast_log(LOG_ERROR, "Failed to initialize bridges\n");
} else {
int i;
for (i = 0; i < max_bridges; i++) {
ast_mutex_init(&bridges[i].lock);
ast_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 do 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");
if (ec_supp_threshold > -1) {
vpb_echo_canc_set_sup_thresh(0, &ec_supp_threshold);
ast_log(LOG_NOTICE, "Voicetronix EC Sup Thres set\n");
}
} else {
/* need to do it port by port for OpenSwitch */
}
}
}
static struct vpb_pvt *mkif(int board, int channel, int mode, int gains, float txgain, float rxgain,
float txswgain, float rxswgain, int bal1, int bal2, int bal3,
char * callerid, int echo_cancel, int group, ast_group_t callgroup, ast_group_t pickupgroup )
{
struct vpb_pvt *tmp;
char buf[64];
tmp = (vpb_pvt *)ast_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));
ast_free(tmp);
return NULL;
}
snprintf(tmp->dev, sizeof(tmp->dev), "vpb/%d-%d", board, channel);
tmp->mode = mode;
tmp->group = group;
tmp->callgroup = callgroup;
tmp->pickupgroup = pickupgroup;
/* Initialize dtmf caller ID position variable */
tmp->dtmf_caller_pos = 0;
ast_copy_string(tmp->language, language, sizeof(tmp->language));
ast_copy_string(tmp->context, context, sizeof(tmp->context));
tmp->callerid_type = 0;
if (callerid) {
if (strcasecmp(callerid, "on") == 0) {
tmp->callerid_type = 1;
ast_copy_string(tmp->callerid, "unknown", sizeof(tmp->callerid));
} else if (strcasecmp(callerid, "v23") == 0) {
tmp->callerid_type = 2;
ast_copy_string(tmp->callerid, "unknown", sizeof(tmp->callerid));
} else if (strcasecmp(callerid, "bell") == 0) {
tmp->callerid_type = 3;
ast_copy_string(tmp->callerid, "unknown", sizeof(tmp->callerid));
} else {
ast_copy_string(tmp->callerid, callerid, sizeof(tmp->callerid));
}
} else {
ast_copy_string(tmp->callerid, "unknown", sizeof(tmp->callerid));
}
/* 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);
}
if (gains & VPB_GOT_TXHWG) {
if (txgain > MAX_VPB_GAIN) {
tmp->txgain = MAX_VPB_GAIN;
} else if (txgain < MIN_VPB_GAIN) {
tmp->txgain = MIN_VPB_GAIN;
} else {
tmp->txgain = txgain;
}
ast_log(LOG_NOTICE, "VPB setting Tx Hw gain to [%f]\n", tmp->txgain);
vpb_play_set_hw_gain(tmp->handle, tmp->txgain);
}
if (gains & VPB_GOT_RXHWG) {
if (rxgain > MAX_VPB_GAIN) {
tmp->rxgain = MAX_VPB_GAIN;
} else if (rxgain < MIN_VPB_GAIN) {
tmp->rxgain = MIN_VPB_GAIN;
} else {
tmp->rxgain = rxgain;
}
ast_log(LOG_NOTICE, "VPB setting Rx Hw gain to [%f]\n", tmp->rxgain);
vpb_record_set_hw_gain(tmp->handle, tmp->rxgain);
}
if (gains & VPB_GOT_TXSWG) {
tmp->txswgain = txswgain;
ast_log(LOG_NOTICE, "VPB setting Tx Sw gain to [%f]\n", tmp->txswgain);
vpb_play_set_gain(tmp->handle, tmp->txswgain);
}
if (gains & VPB_GOT_RXSWG) {
tmp->rxswgain = rxswgain;
ast_log(LOG_NOTICE, "VPB setting Rx Sw gain to [%f]\n", tmp->rxswgain);
vpb_record_set_gain(tmp->handle, tmp->rxswgain);
}
tmp->vpb_model = vpb_model_unknown;
if (vpb_get_model(tmp->handle, 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);
tmp->ring_timer_id = vpb_timer_get_unique_timer_id();
vpb_timer_open(&tmp->ring_timer, tmp->handle, tmp->ring_timer_id, timer_period_ring);
tmp->dtmfidd_timer_id = vpb_timer_get_unique_timer_id();
vpb_timer_open(&tmp->dtmfidd_timer, tmp->handle, tmp->dtmfidd_timer_id, dtmf_idd);
if (mode == MODE_FXO){
if (use_ast_dtmfdet)
vpb_set_event_mask(tmp->handle, VPB_EVENTS_NODTMF);
else
vpb_set_event_mask(tmp->handle, VPB_EVENTS_ALL);
} else {
/*
if (use_ast_dtmfdet)
vpb_set_event_mask(tmp->handle, VPB_EVENTS_NODTMF);
else
*/
vpb_set_event_mask(tmp->handle, VPB_EVENTS_STAT);
}
if ((tmp->vpb_model == vpb_model_v12pci) && (echo_cancel)) {
vpb_hostecho_on(tmp->handle);
}
if (use_ast_dtmfdet) {
tmp->vad = ast_dsp_new();
ast_dsp_set_features(tmp->vad, DSP_FEATURE_DIGIT_DETECT);
ast_dsp_set_digitmode(tmp->vad, DSP_DIGITMODE_DTMF);
if (relaxdtmf)
ast_dsp_set_digitmode(tmp->vad, DSP_DIGITMODE_DTMF|DSP_DIGITMODE_RELAXDTMF);
} else {
tmp->vad = NULL;
}
/* define grunt tone */
vpb_settonedet(tmp->handle,&toned_ungrunt);
ast_log(LOG_NOTICE,"Voicetronix %s channel %s initialized (rxsg=%f/txsg=%f/rxhg=%f/txhg=%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, const void *data, size_t datalen)
{
struct vpb_pvt *p = (struct vpb_pvt *)ast_channel_tech_pvt(ast);
int res = 0;
if (use_ast_ind == 1) {
ast_verb(4, "%s: vpb_indicate called when using Ast Indications !?!\n", p->dev);
return 0;
}
ast_verb(4, "%s: vpb_indicate [%d] state[%d]\n", p->dev, condition,ast_channel_state(ast));
/*
if (ast->_state != AST_STATE_UP) {
ast_verb(4, "%s: vpb_indicate Not in AST_STATE_UP\n", p->dev, condition,ast->_state);
return res;
}
*/
/*
ast_verb(4, "%s: LOCKING in indicate \n", p->dev);
ast_verb(4, "%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_channel_state(ast) == 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_channel_state(ast) == AST_STATE_UP) {
playtone(p->handle, &Ringbacktone);
p->state = VPB_STATE_PLAYRING;
ast_verb(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_channel_state(ast) == 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_HOLD:
ast_moh_start(ast, (const char *) data, NULL);
break;
case AST_CONTROL_UNHOLD:
ast_moh_stop(ast);
break;
case AST_CONTROL_PVT_CAUSE_CODE:
res = -1;
break;
default:
res = 0;
break;
}
ast_mutex_unlock(&p->lock);
return res;
}
static int vpb_fixup(struct ast_channel *oldchan, struct ast_channel *newchan)
{
struct vpb_pvt *p = (struct vpb_pvt *)ast_channel_tech_pvt(newchan);
/*
ast_verb(4, "%s: LOCKING in fixup \n", p->dev);
ast_verb(4, "%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
*/
ast_mutex_lock(&p->lock);
ast_debug(1, "New owner for channel %s is %s\n", p->dev, ast_channel_name(newchan));
if (p->owner == oldchan) {
p->owner = newchan;
}
if (ast_channel_state(newchan) == AST_STATE_RINGING){
if (use_ast_ind == 1) {
ast_verb(4, "%s: vpb_fixup Calling ast_indicate\n", p->dev);
ast_indicate(newchan, AST_CONTROL_RINGING);
} else {
ast_verb(4, "%s: vpb_fixup Calling vpb_indicate\n", p->dev);
vpb_indicate(newchan, AST_CONTROL_RINGING, NULL, 0);
}
}
ast_mutex_unlock(&p->lock);
return 0;
}
static int vpb_digit_begin(struct ast_channel *ast, char digit)
{
/* XXX Modify this callback to let Asterisk control the length of DTMF */
return 0;
}
static int vpb_digit_end(struct ast_channel *ast, char digit, unsigned int duration)
{
struct vpb_pvt *p = (struct vpb_pvt *)ast_channel_tech_pvt(ast);
char s[2];
if (use_ast_dtmf) {
ast_verb(4, "%s: vpb_digit: asked to play digit[%c] but we are using asterisk dtmf play back?!\n", p->dev, digit);
return 0;
}
/*
ast_verb(4, "%s: LOCKING in digit \n", p->dev);
ast_verb(4, "%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';
ast_verb(4, "%s: vpb_digit: asked to play digit[%s]\n", p->dev, s);
ast_mutex_lock(&p->play_dtmf_lock);
strncat(p->play_dtmf, s, sizeof(p->play_dtmf) - strlen(p->play_dtmf) - 1);
ast_mutex_unlock(&p->play_dtmf_lock);
ast_mutex_unlock(&p->lock);
return 0;
}
/* Places a call out of a VPB channel */
static int vpb_call(struct ast_channel *ast, const char *dest, int timeout)
{
struct vpb_pvt *p = (struct vpb_pvt *)ast_channel_tech_pvt(ast);
int res = 0, i;
const char *s = strrchr(dest, '/');
char dialstring[254] = "";
/*
ast_verb(4, "%s: LOCKING in call \n", p->dev);
ast_verb(4, "%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
*/
ast_mutex_lock(&p->lock);
ast_verb(4, "%s: starting call to [%s]\n", p->dev, dest);
if (s)
s = s + 1;
else
s = dest;
ast_copy_string(dialstring, s, sizeof(dialstring));
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 (ast_channel_state(ast) != AST_STATE_DOWN && ast_channel_state(ast) != AST_STATE_RESERVED) {
ast_log(LOG_WARNING, "vpb_call on %s neither down nor reserved!\n", ast_channel_name(ast));
ast_mutex_unlock(&p->lock);
return -1;
}
if (p->mode != MODE_FXO) /* Station port, ring it. */
vpb_ring_station_async(p->handle, 2);
else {
VPB_CALL call;
int j;
/* 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);
ast_verb(2, "%s: Calling %s on %s \n",p->dev, dialstring, ast_channel_name(ast));
ast_verb(2, "%s: Dial parms for %s %d/%dms/%dms/%dms/%dms\n", p->dev,
ast_channel_name(ast), 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_verb(2, "%s: Dial parms for %s tone %d->%d\n", p->dev,
ast_channel_name(ast), call.tone_map[j].tone_id, call.tone_map[j].call_id);
}
ast_verb(4, "%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);
ast_verb(4, "%s: Enabling Loop Drop detection\n", p->dev);
vpb_enable_event(p->handle, VPB_MDROP);
res = vpb_dial_async(p->handle, dialstring);
#else
ast_verb(4, "%s: Enabling 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_debug(1, "Call on %s to %s failed: %d\n", ast_channel_name(ast), s, res);
res = -1;
} else
res = 0;
}
ast_verb(3, "%s: VPB Calling %s [t=%d] on %s returned %d\n", p->dev , s, timeout, ast_channel_name(ast), 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);
}
ast_mutex_unlock(&p->lock);
return res;
}
static int vpb_hangup(struct ast_channel *ast)
{
struct vpb_pvt *p = (struct vpb_pvt *)ast_channel_tech_pvt(ast);
VPB_EVENT je;
char str[VPB_MAX_STR];
/*
ast_verb(4, "%s: LOCKING in hangup \n", p->dev);
ast_verb(4, "%s: LOCKING in hangup count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
ast_verb(4, "%s: LOCKING pthread_self(%d)\n", p->dev,pthread_self());
ast_mutex_lock(&p->lock);
*/
ast_verb(2, "%s: Hangup requested\n", ast_channel_name(ast));
if (!ast_channel_tech(ast) || !ast_channel_tech_pvt(ast)) {
ast_log(LOG_WARNING, "%s: channel not connected?\n", ast_channel_name(ast));
ast_mutex_unlock(&p->lock);
/* Free up ast dsp if we have one */
if (use_ast_dtmfdet && p->vad) {
ast_dsp_free(p->vad);
p->vad = NULL;
}
return 0;
}
/* Stop record */
p->stopreads = 1;
if (p->readthread) {
pthread_join(p->readthread, NULL);
ast_verb(4, "%s: stopped record thread \n", ast_channel_name(ast));
}
/* Stop play */
if (p->lastoutput != -1) {
ast_verb(2, "%s: Ending play mode \n", ast_channel_name(ast));
vpb_play_terminate(p->handle);
ast_mutex_lock(&p->play_lock);
vpb_play_buf_finish(p->handle);
ast_mutex_unlock(&p->play_lock);
}
ast_verb(4, "%s: Setting state down\n", ast_channel_name(ast));
ast_setstate(ast, AST_STATE_DOWN);
/*
ast_verb(4, "%s: LOCKING in hangup \n", p->dev);
ast_verb(4, "%s: LOCKING in hangup count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
ast_verb(4, "%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, 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;
ast_verb(5, "%s: Station offhook[%d], playing busy tone\n",
ast->name,p->state);
*/
} else {
stoptone(p->handle);
}
#ifdef VPB_PRI
vpb_setloop_async(p->handle, VPB_OFFHOOK);
vpb_sleep(100);
vpb_setloop_async(p->handle, VPB_ONHOOK);
#endif
} 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)) {
vpb_translate_event(&je, str);
ast_verb(4, "%s: Flushing event [%d]=>%s\n", ast_channel_name(ast), 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_channel_tech_pvt_set(ast, NULL);
/* Free up ast dsp if we have one */
if (use_ast_dtmfdet && p->vad) {
ast_dsp_free(p->vad);
p->vad = NULL;
}
ast_verb(2, "%s: Hangup complete\n", ast_channel_name(ast));
restart_monitor();
ast_mutex_unlock(&p->lock);
return 0;
}
static int vpb_answer(struct ast_channel *ast)
{
struct vpb_pvt *p = (struct vpb_pvt *)ast_channel_tech_pvt(ast);
/*
VPB_EVENT je;
int ret;
ast_verb(4, "%s: LOCKING in answer \n", p->dev);
ast_verb(4, "%s: LOCKING count[%d] owner[%d] \n", p->dev, p->lock.__m_count,p->lock.__m_owner);
*/
ast_mutex_lock(&p->lock);
ast_verb(4, "%s: Answering channel\n", p->dev);
if (p->mode == MODE_FXO) {
ast_verb(4, "%s: Disabling Loop Drop detection\n", p->dev);
vpb_disable_event(p->handle, VPB_MDROP);
}
if (ast_channel_state(ast) != 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))){
ast_verb(4, "%s: Answer collected a wrong event!!\n", p->dev);
vpb_put_event(&je);
}
*/
}
ast_setstate(ast, AST_STATE_UP);
ast_verb(2, "%s: Answered call on %s [%s]\n", p->dev,
ast_channel_name(ast), (p->mode == MODE_FXO) ? "FXO" : "FXS");
ast_channel_rings_set(ast, 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 {
ast_verb(4, "%s: Record thread already running!!\n", p->dev);
}
} else {
ast_verb(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) {
ast_verb(4, "%s: Re-enabling Loop Drop detection\n", p->dev);
vpb_enable_event(p->handle, VPB_MDROP);
}
ast_mutex_unlock(&p->lock);
return 0;
}
static struct ast_frame *vpb_read(struct ast_channel *ast)
{
struct vpb_pvt *p = (struct vpb_pvt *)ast_channel_tech_pvt(ast);
static struct ast_frame f = { AST_FRAME_NULL };
f.src = "vpb";
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 AudioCompress ast2vpbformat(struct ast_format *format)
{
if (ast_format_cmp(format, ast_format_alaw) == AST_FORMAT_CMP_EQUAL) {
return VPB_ALAW;
} else if (ast_format_cmp(format, ast_format_slin) == AST_FORMAT_CMP_EQUAL) {
return VPB_LINEAR;
} else if (ast_format_cmp(format, ast_format_ulaw) == AST_FORMAT_CMP_EQUAL) {
return VPB_MULAW;
} else if (ast_format_cmp(format, ast_format_adpcm) == AST_FORMAT_CMP_EQUAL) {
return VPB_OKIADPCM;
} else {
return VPB_RAW;
}
}
static inline const char * ast2vpbformatname(struct ast_format *format)
{
if (ast_format_cmp(format, ast_format_alaw) == AST_FORMAT_CMP_EQUAL) {
return "AST_FORMAT_ALAW:VPB_ALAW";
} else if (ast_format_cmp(format, ast_format_slin) == AST_FORMAT_CMP_EQUAL) {
return "AST_FORMAT_SLINEAR:VPB_LINEAR";
} else if (ast_format_cmp(format, ast_format_ulaw) == AST_FORMAT_CMP_EQUAL) {
return "AST_FORMAT_ULAW:VPB_MULAW";
} else if (ast_format_cmp(format, ast_format_adpcm) == AST_FORMAT_CMP_EQUAL) {
return "AST_FORMAT_ADPCM:VPB_OKIADPCM";
} else {
return "UNKN:UNKN";
}
}
static inline int astformatbits(struct ast_format *format)
{
if (ast_format_cmp(format, ast_format_slin) == AST_FORMAT_CMP_EQUAL) {
return 16;
} else if (ast_format_cmp(format, ast_format_adpcm) == AST_FORMAT_CMP_EQUAL) {
return 4;
} else {
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_channel_tech_pvt(ast);
int res = 0;
AudioCompress fmt = VPB_RAW;
struct timeval play_buf_time_start;
int tdiff;
/* ast_mutex_lock(&p->lock); */
ast_verb(6, "%s: vpb_write: Writing to channel\n", p->dev);
if (frame->frametype != AST_FRAME_VOICE) {
ast_verb(4, "%s: vpb_write: Don't know how to handle from type %d\n", ast_channel_name(ast), frame->frametype);
/* ast_mutex_unlock(&p->lock); */
return 0;
} else if (ast_channel_state(ast) != AST_STATE_UP) {
ast_verb(4, "%s: vpb_write: Attempt to Write frame type[%d]subclass[%s] on not up chan(state[%d])\n",
ast_channel_name(ast), frame->frametype, ast_format_get_name(frame->subclass.format), ast_channel_state(ast));
p->lastoutput = -1;
/* ast_mutex_unlock(&p->lock); */
return 0;
}
/* ast_debug(1, "%s: vpb_write: Checked frame type..\n", p->dev); */
fmt = ast2vpbformat(frame->subclass.format);
if (fmt < 0) {
ast_log(LOG_WARNING, "%s: vpb_write: Cannot handle frames of %s format!\n", ast_channel_name(ast),
ast_format_get_name(frame->subclass.format));
return -1;
}
tdiff = ast_tvdiff_ms(ast_tvnow(), p->lastplay);
ast_debug(1, "%s: vpb_write: time since last play(%d) \n", p->dev, tdiff);
if (tdiff < (VPB_SAMPLES / 8 - 1)) {
ast_debug(1, "%s: vpb_write: Asked to play too often (%d) (%d)\n", p->dev, tdiff, frame->datalen);
/* return 0; */
}
p->lastplay = ast_tvnow();
/*
ast_debug(1, "%s: vpb_write: Checked frame format..\n", p->dev);
*/
ast_mutex_lock(&p->play_lock);
/*
ast_debug(1, "%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);
ast_verb(2, "%s: vpb_write: Starting play mode (codec=%d)[%s]\n", p->dev, fmt, ast2vpbformatname(frame->subclass.format));
p->lastoutput = fmt;
ast_mutex_unlock(&p->play_lock);
return 0;
} else if (p->lastoutput != fmt) {
vpb_play_buf_finish(p->handle);
vpb_play_buf_start(p->handle, fmt);
ast_verb(2, "%s: vpb_write: Changed play format (%d=>%d)\n", p->dev, p->lastoutput, fmt);
ast_mutex_unlock(&p->play_lock);
return 0;
}
p->lastoutput = fmt;
/* Apply extra gain ! */
if( p->txswgain > MAX_VPB_GAIN )
a_gain_vector(p->txswgain - MAX_VPB_GAIN , (short*)frame->data.ptr, frame->datalen / sizeof(short));
/* ast_debug(1, "%s: vpb_write: Applied gain..\n", p->dev); */
/* ast_debug(1, "%s: vpb_write: play_buf_time %d\n", p->dev, p->play_buf_time); */
if ((p->read_state == 1) && (p->play_buf_time < 5)){
play_buf_time_start = ast_tvnow();
/* res = vpb_play_buf_sync(p->handle, (char *)frame->data, tdiff * 8 * 2); */
res = vpb_play_buf_sync(p->handle, (char *)frame->data.ptr, frame->datalen);
if(res == VPB_OK) {
short * data = (short*)frame->data.ptr;
ast_verb(6, "%s: vpb_write: Wrote chan (codec=%d) %d %d\n", p->dev, fmt, data[0], data[1]);
}
p->play_buf_time = ast_tvdiff_ms(ast_tvnow(), play_buf_time_start);
} else {
p->chuck_count++;
ast_debug(1, "%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); */
ast_verb(6, "%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;
struct ast_format *tmpfmt;
int readlen, res, trycnt=0;
AudioCompress fmt;
int ignore_dtmf;
const char * getdtmf_var = NULL;
fr->frametype = AST_FRAME_VOICE;
fr->src = "vpb";
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);
ast_verb(3, "%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) {
ast_verb(5, "%s: chanreads: Starting cycle ...\n", p->dev);
ast_verb(5, "%s: chanreads: Checking bridge \n", p->dev);
if (p->bridge) {
bridgerec = 0;
} else {
bridgerec = ast_channel_is_bridged(p->owner) ? 1 : 0;
}
/* if ((p->owner->_state != AST_STATE_UP) || !bridgerec) */
if ((ast_channel_state(p->owner) != AST_STATE_UP)) {
if (ast_channel_state(p->owner) != AST_STATE_UP) {
ast_verb(5, "%s: chanreads: Im not up[%d]\n", p->dev, ast_channel_state(p->owner));
} else {
ast_verb(5, "%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) && (!use_ast_dtmfdet)){
ast_verb(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
*/
ast_verb(6, "%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 (p->bridge == NULL) {
vpb_dial_sync(p->handle, p->play_dtmf);
ast_verb(2, "%s: chanreads: Played DTMF %s\n", p->dev, p->play_dtmf);
} else {
ast_verb(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);
if (p->owner) {
tmpfmt = ast_channel_rawreadformat(p->owner);
} else {
tmpfmt = ast_format_slin;
}
fmt = ast2vpbformat(tmpfmt);
if (fmt < 0) {
ast_log(LOG_WARNING, "%s: Record failure (unsupported format %s)\n", p->dev, ast_format_get_name(tmpfmt));
return NULL;
}
readlen = VPB_SAMPLES * astformatbits(tmpfmt) / 8;
if (p->lastinput == -1) {
vpb_record_buf_start(p->handle, fmt);
/* vpb_reset_record_fifo_alarm(p->handle); */
p->lastinput = fmt;
ast_verb(2, "%s: Starting record mode (codec=%d)[%s]\n", p->dev, fmt, ast2vpbformatname(tmpfmt));
continue;
} else if (p->lastinput != fmt) {
vpb_record_buf_finish(p->handle);
vpb_record_buf_start(p->handle, fmt);
p->lastinput = fmt;
ast_verb(2, "%s: Changed record format (%d=>%d)\n", p->dev, p->lastinput, fmt);
continue;
}
/* Read only if up and not bridged, or a bridge for which we can read. */
ast_verb(6, "%s: chanreads: getting buffer!\n", p->dev);
if( (res = vpb_record_buf_sync(p->handle, readbuf, readlen) ) == VPB_OK ) {
ast_verb(6, "%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));
ast_verb(6, "%s: chanreads: applied gain\n", p->dev);
fr->subclass.format = tmpfmt;
fr->data.ptr = readbuf;
fr->datalen = readlen;
fr->frametype = AST_FRAME_VOICE;
if ((use_ast_dtmfdet) && (p->vad)) {
fr = ast_dsp_process(p->owner, p->vad, fr);
if (fr && (fr->frametype == AST_FRAME_DTMF)) {
ast_debug(1, "%s: chanreads: Detected DTMF '%c'\n", p->dev, fr->subclass.integer);
} else if (fr->subclass.integer == 'f') {
}
}
/* Using trylock here to prevent deadlock when channel is hungup
* (ast_hangup() immediately gets lock)
*/
if (p->owner && !p->stopreads) {
ast_verb(6, "%s: chanreads: queueing buffer on read frame q (state[%d])\n", p->dev, ast_channel_state(p->owner));
do {
res = ast_channel_trylock(p->owner);
trycnt++;
} while ((res !=0 ) && (trycnt < 300));
if (res == 0) {
ast_queue_frame(p->owner, fr);
ast_channel_unlock(p->owner);
} else {
ast_verb(5, "%s: chanreads: Couldnt get lock after %d tries!\n", p->dev, trycnt);
}
trycnt = 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)
ast_verb(5, "%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev, res);
else if (res == EBUSY)
ast_verb(5, "%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) {
ast_verb(5, "%s: chanreads: try owner->lock gave me EINVAL[%d]\n", p->dev, res);
} else if (res == EBUSY) {
ast_verb(5, "%s: chanreads: try owner->lock gave me EBUSY[%d]\n", p->dev, res);
}
ast_verb(5, "%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);
}
}
*/
short *data = (short *)readbuf;
ast_verb(7, "%s: Read channel (codec=%d) %d %d\n", p->dev, fmt, data[0], data[1]);
} else {
ast_verb(5, "%s: p->stopreads[%d] p->owner[%p]\n", p->dev, p->stopreads, (void *)p->owner);
}
}
ast_verb(5, "%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);
ast_verb(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, enum ast_channel_state state, const char *context, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor)
{
struct ast_channel *tmp;
char cid_num[256];
char cid_name[256];
if (me->owner) {
ast_log(LOG_WARNING, "Called vpb_new on owned channel (%s) ?!\n", me->dev);
return NULL;
}
ast_verb(4, "%s: New call for context [%s]\n", me->dev, context);
tmp = ast_channel_alloc(1, state, 0, 0, "", me->ext, me->context, assignedids, requestor, AST_AMA_NONE, "%s", me->dev);
if (tmp) {
if (use_ast_ind == 1){
ast_channel_tech_set(tmp, &vpb_tech_indicate);
} else {
ast_channel_tech_set(tmp, &vpb_tech);
}
ast_channel_callgroup_set(tmp, me->callgroup);
ast_channel_pickupgroup_set(tmp, me->pickupgroup);
/* 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.
*/
ast_channel_nativeformats_set(tmp, vpb_tech.capabilities);
ast_channel_set_rawreadformat(tmp, ast_format_slin);
ast_channel_set_rawwriteformat(tmp, ast_format_slin);
if (state == AST_STATE_RING) {
ast_channel_rings_set(tmp, 1);
cid_name[0] = '\0';
cid_num[0] = '\0';
ast_callerid_split(me->callerid, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num));
ast_set_callerid(tmp, cid_num, cid_name, cid_num);
}
ast_channel_tech_pvt_set(tmp, me);
ast_channel_context_set(tmp, context);
if (!ast_strlen_zero(me->ext))
ast_channel_exten_set(tmp, me->ext);
else
ast_channel_exten_set(tmp, "s");
if (!ast_strlen_zero(me->language))
ast_channel_language_set(tmp, me->language);
ast_channel_unlock(tmp);
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->faxhandled = 0;
me->lastgrunt = ast_tvnow(); /* Assume at least one grunt tone seen now. */
me->lastplay = ast_tvnow(); /* Assume at least one grunt tone seen now. */
if (state != AST_STATE_DOWN) {
if ((me->mode != MODE_FXO) && (state != AST_STATE_UP)) {
vpb_answer(tmp);
}
if (ast_pbx_start(tmp)) {
ast_log(LOG_WARNING, "Unable to start PBX on %s\n", ast_channel_name(tmp));
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, struct ast_format_cap *cap, const struct ast_assigned_ids *assignedids, const struct ast_channel *requestor, const char *data, int *cause)
{
struct vpb_pvt *p;
struct ast_channel *tmp = NULL;
char *sepstr, *name;
const char *s;
int group = -1;
if (!(ast_format_cap_iscompatible_format(cap, ast_format_slin))) {
struct ast_str *buf;
buf = ast_str_create(AST_FORMAT_CAP_NAMES_LEN);
if (!buf) {
return NULL;
}
ast_log(LOG_NOTICE, "Asked to create a channel for unsupported formats: %s\n",
ast_format_cap_get_names(cap, &buf));
ast_free(buf);
return NULL;
}
name = ast_strdup(S_OR(data, ""));
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);
for (p = iflist; p; p = p->next) {
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, assignedids, requestor);
break;
}
}
} else {
if ((p->group == group) && (!p->owner)) {
tmp = vpb_new(p, AST_STATE_DOWN, p->context, assignedids, requestor);
break;
}
}
}
ast_mutex_unlock(&iflock);
ast_verb(2, " %s requested, got: [%s]\n", name, tmp ? ast_channel_name(tmp) : "None");
ast_free(name);
restart_monitor();
return tmp;
}
static float parse_gain_value(const char *gain_type, const 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;
}
static int unload_module(void)
{
struct vpb_pvt *p;
/* First, take us out of the channel loop */
if (use_ast_ind == 1){
ast_channel_unregister(&vpb_tech_indicate);
} else {
ast_channel_unregister(&vpb_tech);
}
ast_mutex_lock(&iflock);
/* Hangup all interfaces if they have an owner */
for (p = iflist; p; p = p->next) {
if (p->owner)
ast_softhangup(p->owner, AST_SOFTHANGUP_APPUNLOAD);
}
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;
ast_free(p);
}
iflist = NULL;
ast_mutex_unlock(&iflock);
if (bridges) {
ast_mutex_lock(&bridge_lock);
for (int i = 0; i < max_bridges; i++) {
ast_mutex_destroy(&bridges[i].lock);
ast_cond_destroy(&bridges[i].cond);
}
ast_free(bridges);
bridges = NULL;
ast_mutex_unlock(&bridge_lock);
}
ao2_cleanup(vpb_tech.capabilities);
vpb_tech.capabilities = NULL;
ao2_cleanup(vpb_tech_indicate.capabilities);
vpb_tech_indicate.capabilities = NULL;
return 0;
}
/*!
* \brief Load the module
*
* Module loading including tests for configuration or dependencies.
* This function can return AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_DECLINE,
* or AST_MODULE_LOAD_SUCCESS. If a dependency or environment variable fails
* tests return AST_MODULE_LOAD_FAILURE. If the module can not load the
* configuration file or other non-critical problem return
* AST_MODULE_LOAD_DECLINE. On success return AST_MODULE_LOAD_SUCCESS.
*/
static enum ast_module_load_result load_module()
{
struct ast_config *cfg;
struct ast_variable *v;
struct ast_flags config_flags = { 0 };
struct vpb_pvt *tmp;
int board = 0, group = 0;
ast_group_t callgroup = 0;
ast_group_t pickupgroup = 0;
int mode = MODE_IMMEDIATE;
float txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN;
float txswgain = 0, rxswgain = 0;
int got_gain=0;
int first_channel = 1;
int echo_cancel = DEFAULT_ECHO_CANCEL;
enum ast_module_load_result error = AST_MODULE_LOAD_SUCCESS; /* Error flag */
int bal1 = -1; /* Special value - means do not set */
int bal2 = -1;
int bal3 = -1;
char * callerid = NULL;
int num_cards = 0;
vpb_tech.capabilities = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
if (!vpb_tech.capabilities) {
return AST_MODULE_LOAD_DECLINE;
}
vpb_tech_indicate.capabilities = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
if (!vpb_tech_indicate.capabilities) {
return AST_MODULE_LOAD_DECLINE;
}
ast_format_cap_append(vpb_tech.capabilities, ast_format_slin, 0);
ast_format_cap_append(vpb_tech_indicate.capabilities, ast_format_slin, 0);
try {
num_cards = vpb_get_num_cards();
} catch (std::exception&) {
ast_log(LOG_ERROR, "No Voicetronix cards detected\n");
return AST_MODULE_LOAD_DECLINE;
}
int ports_per_card[num_cards];
for (int i = 0; i < num_cards; ++i)
ports_per_card[i] = vpb_get_ports_per_card(i);
cfg = ast_config_load(config, config_flags);
/* We *must* have a config file otherwise stop immediately */
if (!cfg || cfg == CONFIG_STATUS_FILEINVALID) {
ast_log(LOG_ERROR, "Unable to load config %s\n", config);
return AST_MODULE_LOAD_DECLINE;
}
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");
} else if (strcasecmp(v->name, "break-for-dtmf") == 0) {
if (ast_true(v->value)) {
break_for_dtmf = 1;
} else {
break_for_dtmf = 0;
ast_log(LOG_NOTICE, "VPB driver not stopping for DTMF's in native bridge\n");
}
} else if (strcasecmp(v->name, "ast-dtmf") == 0) {
use_ast_dtmf = 1;
ast_log(LOG_NOTICE, "VPB driver using Asterisk DTMF play functions!\n");
} else if (strcasecmp(v->name, "ast-dtmf-det") == 0) {
use_ast_dtmfdet = 1;
ast_log(LOG_NOTICE, "VPB driver using Asterisk DTMF detection functions!\n");
} else if (strcasecmp(v->name, "relaxdtmf") == 0) {
relaxdtmf = 1;
ast_log(LOG_NOTICE, "VPB driver using Relaxed DTMF with Asterisk DTMF detections functions!\n");
} else if (strcasecmp(v->name, "timer_period_ring") == 0) {
timer_period_ring = atoi(v->value);
} else if (strcasecmp(v->name, "ecsuppthres") == 0) {
ec_supp_threshold = (short)atoi(v->value);
} else if (strcasecmp(v->name, "dtmfidd") == 0) {
dtmf_idd = atoi(v->value);
ast_log(LOG_NOTICE, "VPB Driver setting DTMF IDD to [%d]ms\n", dtmf_idd);
}
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, "callgroup") == 0) {
callgroup = ast_get_group(v->value);
} else if (strcasecmp(v->name, "pickupgroup") == 0) {
pickupgroup = ast_get_group(v->value);
} else if (strcasecmp(v->name, "usepolaritycid") == 0) {
UsePolarityCID = 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);
if (board >= num_cards || board < 0 || channel < 0 || channel >= ports_per_card[board]) {
ast_log(LOG_ERROR, "Invalid board/channel (%d/%d) for channel '%s'\n", board, channel, v->value);
error = AST_MODULE_LOAD_FAILURE;
goto done;
}
tmp = mkif(board, channel, mode, got_gain, txgain, rxgain, txswgain, rxswgain, bal1, bal2, bal3, callerid, echo_cancel,group,callgroup,pickupgroup);
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 = AST_MODULE_LOAD_FAILURE;
goto done;
}
} else if (strcasecmp(v->name, "language") == 0) {
ast_copy_string(language, v->value, sizeof(language));
} else if (strcasecmp(v->name, "callerid") == 0) {
callerid = ast_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")) {
ast_copy_string(context, v->value, sizeof(context));
} 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);
got_gain |= VPB_GOT_TXSWG;
} else if (strcasecmp(v->name, "rxgain") == 0) {
rxswgain = parse_gain_value(v->name, v->value);
got_gain |= VPB_GOT_RXSWG;
} else if (strcasecmp(v->name, "txhwgain") == 0) {
txgain = parse_gain_value(v->name, v->value);
got_gain |= VPB_GOT_TXHWG;
} else if (strcasecmp(v->name, "rxhwgain") == 0) {
rxgain = parse_gain_value(v->name, v->value);
got_gain |= VPB_GOT_RXHWG;
} 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_config_destroy(cfg);
if (use_ast_ind == 1) {
if (error == AST_MODULE_LOAD_SUCCESS && ast_channel_register(&vpb_tech_indicate) != 0) {
ast_log(LOG_ERROR, "Unable to register channel class 'vpb'\n");
error = AST_MODULE_LOAD_FAILURE;
} else {
ast_log(LOG_NOTICE, "VPB driver Registered (w/AstIndication)\n");
}
} else {
if (error == AST_MODULE_LOAD_SUCCESS && ast_channel_register(&vpb_tech) != 0) {
ast_log(LOG_ERROR, "Unable to register channel class 'vpb'\n");
error = AST_MODULE_LOAD_FAILURE;
} else {
ast_log(LOG_NOTICE, "VPB driver Registered )\n");
}
}
if (error != AST_MODULE_LOAD_SUCCESS)
unload_module();
else
restart_monitor(); /* And start the monitor for the first time */
return error;
}
/**/
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
/**/
AST_MODULE_INFO_STANDARD_DEPRECATED(ASTERISK_GPL_KEY, "Voicetronix API driver");