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Last updated: Sat Feb 3 05:01:12 2007

Asterisk developer's documentation :: Codename Pineapple

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chan_phone.c File Reference

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Detailed Description

Generic Linux Telephony Interface driver.

Author:

Mark Spencer <markster@digium.com>

Definition in file chan_phone.c.

#include "asterisk.h"
#include <stdio.h>
#include <string.h>
#include <ctype.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 <signal.h>
#include <linux/telephony.h>
#include <linux/version.h>
#include <linux/ixjuser.h>
#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/config.h"
#include "asterisk/logger.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/options.h"
#include "asterisk/utils.h"
#include "asterisk/callerid.h"
#include "asterisk/causes.h"
#include "asterisk/stringfields.h"
#include "asterisk/musiconhold.h"
#include "DialTone.h"

Include dependency graph for chan_phone.c:

Go to the source code of this file.

Data Structures
struct	phone_pvt
Defines
#define	DEFAULT_CALLER_ID   "Unknown"
#define	DEFAULT_GAIN   0x100
#define	IXJ_PHONE_RING_START(x)   ioctl(p->fd, PHONE_RING_START, &x);
#define	MODE_DIALTONE   1
#define	MODE_FXO   3
#define	MODE_FXS   4
#define	MODE_IMMEDIATE   2
#define	MODE_SIGMA   5
#define	PHONE_MAX_BUF   480
#define	QNDRV_VER   100
Functions
static int	__unload_module (void)
	AST_MODULE_INFO_STANDARD (ASTERISK_GPL_KEY,"Linux Telephony API Support")
	AST_MUTEX_DEFINE_STATIC (monlock)
	AST_MUTEX_DEFINE_STATIC (iflock)
static void *	do_monitor (void *data)
static int	load_module (void)
static struct phone_pvt *	mkif (char *iface, int mode, int txgain, int rxgain)
static int	parse_gain_value (char *gain_type, char *value)
static int	phone_answer (struct ast_channel *ast)
static int	phone_call (struct ast_channel *ast, char *dest, int timeout)
static void	phone_check_exception (struct phone_pvt *i)
static int	phone_digit_begin (struct ast_channel *ast, char digit)
static int	phone_digit_end (struct ast_channel *ast, char digit, unsigned int duration)
static struct ast_frame *	phone_exception (struct ast_channel *ast)
static int	phone_fixup (struct ast_channel *old, struct ast_channel *new)
static int	phone_hangup (struct ast_channel *ast)
static int	phone_indicate (struct ast_channel *chan, int condition, const void *data, size_t datalen)
static void	phone_mini_packet (struct phone_pvt *i)
static struct ast_channel *	phone_new (struct phone_pvt *i, int state, char *context)
static struct ast_frame *	phone_read (struct ast_channel *ast)
static struct ast_channel *	phone_request (const char *type, int format, void *data, int *cause)
static int	phone_send_text (struct ast_channel *ast, const char *text)
static int	phone_setup (struct ast_channel *ast)
static int	phone_write (struct ast_channel *ast, struct ast_frame *frame)
static int	phone_write_buf (struct phone_pvt *p, const char *buf, int len, int frlen, int swap)
static int	restart_monitor (void)
	Start the channel monitor thread.
static int	unload_module (void)
Variables
static char	cid_name [AST_MAX_EXTENSION]
static char	cid_num [AST_MAX_EXTENSION]
static const char	config [] = "phone.conf"
static char	context [AST_MAX_EXTENSION] = "default"
static struct ast_channel_tech *	cur_tech
static int	echocancel = AEC_OFF
static struct phone_pvt *	iflist
static char	language [MAX_LANGUAGE] = ""
static unsigned int	monitor
static pthread_t	monitor_thread = AST_PTHREADT_NULL
static const struct ast_channel_tech	phone_tech
static struct ast_channel_tech	phone_tech_fxs
static int	prefformat = AST_FORMAT_G729A | AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW
static int	silencesupression = 0
static const char	tdesc [] = "Standard Linux Telephony API Driver"

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Define Documentation

#define DEFAULT_CALLER_ID   "Unknown"

Definition at line 84 of file chan_phone.c. Referenced by phone_call().

#define DEFAULT_GAIN   0x100

Definition at line 86 of file chan_phone.c. Referenced by load_module(), and parse_gain_value().

#define IXJ_PHONE_RING_START (  x   )     ioctl(p->fd, PHONE_RING_START, &x);

Definition at line 81 of file chan_phone.c. Referenced by phone_call().

#define MODE_DIALTONE   1

Definition at line 122 of file chan_phone.c. Referenced by load_module(), and phone_check_exception().

#define MODE_FXO   3

Definition at line 124 of file chan_phone.c. Referenced by load_module(), mkif(), phone_answer(), phone_exception(), and phone_hangup().

#define MODE_FXS   4

Definition at line 125 of file chan_phone.c. Referenced by load_module(), mkif(), phone_call(), phone_check_exception(), phone_new(), phone_read(), phone_request(), phone_setup(), and phone_write().

#define MODE_IMMEDIATE   2

Definition at line 123 of file chan_phone.c. Referenced by load_module(), and phone_check_exception().

#define MODE_SIGMA   5

Definition at line 126 of file chan_phone.c. Referenced by do_monitor(), load_module(), and phone_check_exception().

#define PHONE_MAX_BUF   480

Definition at line 85 of file chan_phone.c. Referenced by phone_read().

#define QNDRV_VER   100

Definition at line 71 of file chan_phone.c.

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Function Documentation

static int __unload_module (  void   )  [static]

Definition at line 1304 of file chan_phone.c. References ast_channel_unregister(), ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_PTHREADT_NULL, AST_PTHREADT_STOP, ast_softhangup(), AST_SOFTHANGUP_APPUNLOAD, cur_tech, phone_pvt::fd, free, iflist, LOG_WARNING, phone_pvt::next, and phone_pvt::owner. { struct phone_pvt *p, *pl; /* First, take us out of the channel loop */ ast_channel_unregister(cur_tech); if (!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); } else { ast_log(LOG_WARNING, "Unable to lock the monitor\n"); return -1; } if (!ast_mutex_lock(&monlock)) { if (monitor_thread > AST_PTHREADT_NULL) { monitor = 0; while (pthread_kill(monitor_thread, SIGURG) == 0) sched_yield(); pthread_join(monitor_thread, NULL); } monitor_thread = AST_PTHREADT_STOP; ast_mutex_unlock(&monlock); } else { ast_log(LOG_WARNING, "Unable to lock the monitor\n"); return -1; } if (!ast_mutex_lock(&iflock)) { /* Destroy all the interfaces and free their memory */ p = iflist; while(p) { /* Close the socket, assuming it's real */ if (p->fd > -1) close(p->fd); pl = p; p = p->next; /* Free associated memory */ free(pl); } iflist = NULL; ast_mutex_unlock(&iflock); } else { ast_log(LOG_WARNING, "Unable to lock the monitor\n"); return -1; } return 0; }

AST_MODULE_INFO_STANDARD (  ASTERISK_GPL_KEY  , "Linux Telephony API Support"  )

AST_MUTEX_DEFINE_STATIC (  monlock   )

AST_MUTEX_DEFINE_STATIC (  iflock   )

static void* do_monitor (  void *  data  )  [static]

Definition at line 1034 of file chan_phone.c. References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_select(), phone_pvt::dev, DialTone, phone_pvt::dialtone, phone_pvt::fd, iflist, LOG_DEBUG, LOG_ERROR, LOG_WARNING, phone_pvt::mode, MODE_SIGMA, phone_pvt::next, option_debug, phone_pvt::owner, and phone_mini_packet(). { fd_set rfds, efds; int n, res; struct phone_pvt *i; int tonepos = 0; /* The tone we're playing this round */ struct timeval tv = {0,0}; int dotone; /* This thread monitors all the frame relay interfaces which are not yet in use (and thus do not have a separate thread) indefinitely */ while (monitor) { /* Don't let anybody kill us right away. Nobody should lock the interface list and wait for the monitor list, but the other way around is okay. */ /* Lock the interface list */ if (ast_mutex_lock(&iflock)) { ast_log(LOG_ERROR, "Unable to grab interface lock\n"); return NULL; } /* Build the stuff we're going to select on, that is the socket of every phone_pvt that does not have an associated owner channel */ n = -1; FD_ZERO(&rfds); FD_ZERO(&efds); i = iflist; dotone = 0; while (i) { if (FD_ISSET(i->fd, &rfds)) ast_log(LOG_WARNING, "Descriptor %d appears twice (%s)?\n", i->fd, i->dev); if (!i->owner) { /* This needs to be watched, as it lacks an owner */ FD_SET(i->fd, &rfds); FD_SET(i->fd, &efds); if (i->fd > n) n = i->fd; if (i->dialtone && i->mode != MODE_SIGMA) { /* Remember we're going to have to come back and play more dialtones */ if (ast_tvzero(tv)) { /* If we're due for a dialtone, play one */ if (write(i->fd, DialTone + tonepos, 240) != 240) ast_log(LOG_WARNING, "Dial tone write error\n"); } dotone++; } } i = i->next; } /* Okay, now that we know what to do, release the interface lock */ ast_mutex_unlock(&iflock); /* Wait indefinitely for something to happen */ if (dotone && i->mode != MODE_SIGMA) { /* If we're ready to recycle the time, set it to 30 ms */ tonepos += 240; if (tonepos >= sizeof(DialTone)) tonepos = 0; if (ast_tvzero(tv)) { tv = ast_tv(30000, 0); } res = ast_select(n + 1, &rfds, NULL, &efds, &tv); } else { res = ast_select(n + 1, &rfds, NULL, &efds, NULL); tv = ast_tv(0,0); tonepos = 0; } /* Okay, select has finished. Let's see what happened. */ if (res < 0) { if (option_debug) ast_log(LOG_DEBUG, "select return %d: %s\n", res, strerror(errno)); continue; } /* If there are no fd's changed, just continue, it's probably time to play some more dialtones */ if (!res) continue; /* Alright, lock the interface list again, and let's look and see what has happened */ if (ast_mutex_lock(&iflock)) { ast_log(LOG_WARNING, "Unable to lock the interface list\n"); continue; } i = iflist; for(; i; i=i->next) { if (FD_ISSET(i->fd, &rfds)) { if (i->owner) { continue; } phone_mini_packet(i); } if (FD_ISSET(i->fd, &efds)) { if (i->owner) { continue; } phone_check_exception(i); } } ast_mutex_unlock(&iflock); } return NULL; }

static int load_module (  void   )  [static]

Definition at line 1364 of file chan_phone.c. References __unload_module(), ast_callerid_split(), ast_channel_register(), ast_config_destroy(), ast_config_load(), AST_FORMAT_G723_1, AST_FORMAT_G729A, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, ast_log(), AST_MODULE_LOAD_DECLINE, ast_mutex_lock(), ast_mutex_unlock(), ast_true(), ast_variable_browse(), ast_channel_tech::capabilities, cur_tech, DEFAULT_GAIN, iflist, LOG_ERROR, LOG_WARNING, mkif(), phone_pvt::mode, MODE_DIALTONE, MODE_FXO, MODE_FXS, MODE_IMMEDIATE, MODE_SIGMA, ast_variable::name, ast_variable::next, phone_pvt::next, parse_gain_value(), phone_tech, phone_tech_fxs, restart_monitor(), phone_pvt::rxgain, phone_pvt::txgain, and ast_variable::value. { struct ast_config *cfg; struct ast_variable *v; struct phone_pvt *tmp; int mode = MODE_IMMEDIATE; int txgain = DEFAULT_GAIN, rxgain = DEFAULT_GAIN; /* default gain 1.0 */ cfg = ast_config_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 AST_MODULE_LOAD_DECLINE; } if (ast_mutex_lock(&iflock)) { /* It's a little silly to lock it, but we mind as well just to be sure */ ast_log(LOG_ERROR, "Unable to lock interface list???\n"); return -1; } v = ast_variable_browse(cfg, "interfaces"); while(v) { /* Create the interface list */ if (!strcasecmp(v->name, "device")) { tmp = mkif(v->value, mode, txgain, rxgain); if (tmp) { tmp->next = iflist; iflist = tmp; } else { ast_log(LOG_ERROR, "Unable to register channel '%s'\n", v->value); ast_config_destroy(cfg); ast_mutex_unlock(&iflock); __unload_module(); return -1; } } else if (!strcasecmp(v->name, "silencesupression")) { silencesupression = ast_true(v->value); } else if (!strcasecmp(v->name, "language")) { ast_copy_string(language, v->value, sizeof(language)); } else if (!strcasecmp(v->name, "callerid")) { ast_callerid_split(v->value, cid_name, sizeof(cid_name), cid_num, sizeof(cid_num)); } else if (!strcasecmp(v->name, "mode")) { if (!strncasecmp(v->value, "di", 2)) mode = MODE_DIALTONE; else if (!strncasecmp(v->value, "sig", 3)) mode = MODE_SIGMA; else if (!strncasecmp(v->value, "im", 2)) mode = MODE_IMMEDIATE; else if (!strncasecmp(v->value, "fxs", 3)) { mode = MODE_FXS; prefformat = 0x01ff0000; /* All non-voice */ } else if (!strncasecmp(v->value, "fx", 2)) 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, "format")) { if (!strcasecmp(v->value, "g729")) { prefformat = AST_FORMAT_G729A; } else if (!strcasecmp(v->value, "g723.1")) { prefformat = AST_FORMAT_G723_1; } else if (!strcasecmp(v->value, "slinear")) { if (mode == MODE_FXS) prefformat |= AST_FORMAT_SLINEAR; else prefformat = AST_FORMAT_SLINEAR; } else if (!strcasecmp(v->value, "ulaw")) { prefformat = AST_FORMAT_ULAW; } else ast_log(LOG_WARNING, "Unknown format '%s'\n", v->value); } else if (!strcasecmp(v->name, "echocancel")) { if (!strcasecmp(v->value, "off")) { echocancel = AEC_OFF; } else if (!strcasecmp(v->value, "low")) { echocancel = AEC_LOW; } else if (!strcasecmp(v->value, "medium")) { echocancel = AEC_MED; } else if (!strcasecmp(v->value, "high")) { echocancel = AEC_HIGH; } else ast_log(LOG_WARNING, "Unknown echo cancellation '%s'\n", v->value); } else if (!strcasecmp(v->name, "txgain")) { txgain = parse_gain_value(v->name, v->value); } else if (!strcasecmp(v->name, "rxgain")) { rxgain = parse_gain_value(v->name, v->value); } v = v->next; } ast_mutex_unlock(&iflock); if (mode == MODE_FXS) { phone_tech_fxs.capabilities = prefformat; cur_tech = &phone_tech_fxs; } else cur_tech = (struct ast_channel_tech *) &phone_tech; /* Make sure we can register our Adtranphone channel type */ if (ast_channel_register(cur_tech)) { ast_log(LOG_ERROR, "Unable to register channel class 'Phone'\n"); ast_config_destroy(cfg); __unload_module(); return -1; } ast_config_destroy(cfg); /* And start the monitor for the first time */ restart_monitor(); return 0; }

static struct phone_pvt* mkif (  char *  iface, int  mode, int  txgain, int  rxgain )  [static]

Definition at line 1176 of file chan_phone.c. References ast_log(), phone_pvt::cid_name, phone_pvt::cid_num, phone_pvt::context, phone_pvt::cpt, phone_pvt::dev, phone_pvt::dialtone, phone_pvt::ext, phone_pvt::fd, free, phone_pvt::language, phone_pvt::lastformat, phone_pvt::lastinput, LOG_DEBUG, LOG_WARNING, malloc, phone_pvt::ministate, phone_pvt::mode, MODE_FXO, MODE_FXS, phone_pvt::next, phone_pvt::obuflen, option_debug, phone_pvt::owner, phone_pvt::rxgain, phone_pvt::silencesupression, and phone_pvt::txgain. Referenced by load_module(). { /* Make a phone_pvt structure for this interface */ struct phone_pvt *tmp; int flags; tmp = malloc(sizeof(struct phone_pvt)); if (tmp) { tmp->fd = open(iface, O_RDWR); if (tmp->fd < 0) { ast_log(LOG_WARNING, "Unable to open '%s'\n", iface); free(tmp); return NULL; } if (mode == MODE_FXO) { if (ioctl(tmp->fd, IXJCTL_PORT, PORT_PSTN)) { if (option_debug) ast_log(LOG_DEBUG, "Unable to set port to PSTN\n"); } } else { if (ioctl(tmp->fd, IXJCTL_PORT, PORT_POTS)) if (mode != MODE_FXS) ast_log(LOG_DEBUG, "Unable to set port to POTS\n"); } ioctl(tmp->fd, PHONE_PLAY_STOP); ioctl(tmp->fd, PHONE_REC_STOP); ioctl(tmp->fd, PHONE_RING_STOP); ioctl(tmp->fd, PHONE_CPT_STOP); if (ioctl(tmp->fd, PHONE_PSTN_SET_STATE, PSTN_ON_HOOK)) { if (option_debug) ast_log(LOG_DEBUG, "ioctl(PHONE_PSTN_SET_STATE) failed on %s (%s)\n",iface, strerror(errno)); } if (echocancel != AEC_OFF) ioctl(tmp->fd, IXJCTL_AEC_START, echocancel); if (silencesupression) tmp->silencesupression = 1; #ifdef PHONE_VAD ioctl(tmp->fd, PHONE_VAD, tmp->silencesupression); #endif tmp->mode = mode; flags = fcntl(tmp->fd, F_GETFL); fcntl(tmp->fd, F_SETFL, flags | O_NONBLOCK); tmp->owner = NULL; tmp->lastformat = -1; tmp->lastinput = -1; tmp->ministate = 0; memset(tmp->ext, 0, sizeof(tmp->ext)); ast_copy_string(tmp->language, language, sizeof(tmp->language)); ast_copy_string(tmp->dev, iface, sizeof(tmp->dev)); ast_copy_string(tmp->context, context, sizeof(tmp->context)); tmp->next = NULL; tmp->obuflen = 0; tmp->dialtone = 0; tmp->cpt = 0; ast_copy_string(tmp->cid_num, cid_num, sizeof(tmp->cid_num)); ast_copy_string(tmp->cid_name, cid_name, sizeof(tmp->cid_name)); tmp->txgain = txgain; ioctl(tmp->fd, PHONE_PLAY_VOLUME, tmp->txgain); tmp->rxgain = rxgain; ioctl(tmp->fd, PHONE_REC_VOLUME, tmp->rxgain); } return tmp; }

static int parse_gain_value (  char *  gain_type, char *  value )  [static]

Definition at line 1282 of file chan_phone.c. References ast_log(), DEFAULT_GAIN, and LOG_ERROR. Referenced by load_module(). { 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; } /* multiplicate gain by 1.0 gain value */ gain = gain * (float)DEFAULT_GAIN; /* percentage? */ if (value[strlen(value) - 1] == '%') return (int)(gain / (float)100); return (int)gain; }

static int phone_answer (  struct ast_channel *  ast  )  [static]

Definition at line 464 of file chan_phone.c. References ast_log(), ast_setstate(), AST_STATE_UP, phone_pvt::fd, LOG_DEBUG, phone_pvt::mode, MODE_FXO, option_debug, phone_setup(), ast_channel::rings, and ast_channel::tech_pvt. { struct phone_pvt *p; p = ast->tech_pvt; /* In case it's a LineJack, take it off hook */ if (p->mode == MODE_FXO) { if (ioctl(p->fd, PHONE_PSTN_SET_STATE, PSTN_OFF_HOOK)) { if (option_debug) ast_log(LOG_DEBUG, "ioctl(PHONE_PSTN_SET_STATE) failed on %s (%s)\n", ast->name, strerror(errno)); } else { if (option_debug) ast_log(LOG_DEBUG, "Took linejack off hook\n"); } } phone_setup(ast); if (option_debug) ast_log(LOG_DEBUG, "phone_answer(%s)\n", ast->name); ast->rings = 0; ast_setstate(ast, AST_STATE_UP); return 0; }

static int phone_call (  struct ast_channel *  ast, char *  dest, int  timeout )  [static]

Definition at line 289 of file chan_phone.c. References ast_channel::_state, AST_CONTROL_RINGING, ast_log(), ast_queue_control(), ast_setstate(), AST_STATE_DOWN, AST_STATE_RESERVED, AST_STATE_RINGING, ast_strlen_zero(), ast_channel::cid, ast_callerid::cid_name, ast_callerid::cid_num, DEFAULT_CALLER_ID, ast_channel::fds, IXJ_PHONE_RING_START, LOG_DEBUG, LOG_WARNING, phone_pvt::mode, MODE_FXS, option_debug, phone_digit_end(), and ast_channel::tech_pvt. { struct phone_pvt *p; PHONE_CID cid; time_t UtcTime; struct tm tm; int start; time(&UtcTime); localtime_r(&UtcTime,&tm); memset(&cid, 0, sizeof(PHONE_CID)); if(&tm != NULL) { snprintf(cid.month, sizeof(cid.month), "%02d",(tm.tm_mon + 1)); snprintf(cid.day, sizeof(cid.day), "%02d", tm.tm_mday); snprintf(cid.hour, sizeof(cid.hour), "%02d", tm.tm_hour); snprintf(cid.min, sizeof(cid.min), "%02d", tm.tm_min); } /* the standard format of ast->callerid is: "name" <number>, but not always complete */ if (ast_strlen_zero(ast->cid.cid_name)) strcpy(cid.name, DEFAULT_CALLER_ID); else ast_copy_string(cid.name, ast->cid.cid_name, sizeof(cid.name)); if (ast->cid.cid_num) ast_copy_string(cid.number, ast->cid.cid_num, sizeof(cid.number)); p = ast->tech_pvt; if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) { ast_log(LOG_WARNING, "phone_call called on %s, neither down nor reserved\n", ast->name); return -1; } if (option_debug) ast_log(LOG_DEBUG, "Ringing %s on %s (%d)\n", dest, ast->name, ast->fds[0]); start = IXJ_PHONE_RING_START(cid); if (start == -1) return -1; if (p->mode == MODE_FXS) { char *digit = strchr(dest, '/'); if (digit) { digit++; while (*digit) phone_digit_end(ast, *digit++, 0); } } ast_setstate(ast, AST_STATE_RINGING); ast_queue_control(ast, AST_CONTROL_RINGING); return 0; }

static void phone_check_exception (  struct phone_pvt *  i  )  [static]

Definition at line 939 of file chan_phone.c. References ast_canmatch_extension(), ast_exists_extension(), ast_log(), AST_MAX_EXTENSION, ast_module_ref(), ast_module_unref(), AST_STATE_RING, ast_verbose(), phone_pvt::cid_num, phone_pvt::context, phone_pvt::cpt, phone_pvt::dialtone, phone_pvt::ext, phone_pvt::fd, phone_pvt::lastformat, LOG_DEBUG, phone_pvt::mode, MODE_DIALTONE, MODE_FXS, MODE_IMMEDIATE, MODE_SIGMA, option_debug, and phone_new(). { int offhook=0; char digit[2] = {0 , 0}; union telephony_exception phonee; /* XXX Do something XXX */ #if 0 if (option_debug) ast_log(LOG_DEBUG, "Exception!\n"); #endif phonee.bytes = ioctl(i->fd, PHONE_EXCEPTION); if (phonee.bits.dtmf_ready) { digit[0] = ioctl(i->fd, PHONE_GET_DTMF_ASCII); if (i->mode == MODE_DIALTONE || i->mode == MODE_FXS || i->mode == MODE_SIGMA) { ioctl(i->fd, PHONE_PLAY_STOP); ioctl(i->fd, PHONE_REC_STOP); ioctl(i->fd, PHONE_CPT_STOP); i->dialtone = 0; if (strlen(i->ext) < AST_MAX_EXTENSION - 1) strncat(i->ext, digit, sizeof(i->ext) - strlen(i->ext) - 1); if ((i->mode != MODE_FXS || !(phonee.bytes = ioctl(i->fd, PHONE_EXCEPTION)) || !phonee.bits.dtmf_ready) && ast_exists_extension(NULL, i->context, i->ext, 1, i->cid_num)) { /* It's a valid extension in its context, get moving! */ phone_new(i, AST_STATE_RING, i->context); /* No need to restart monitor, we are the monitor */ } else if (!ast_canmatch_extension(NULL, i->context, i->ext, 1, i->cid_num)) { /* There is nothing in the specified extension that can match anymore. Try the default */ if (ast_exists_extension(NULL, "default", i->ext, 1, i->cid_num)) { /* Check the default, too... */ phone_new(i, AST_STATE_RING, "default"); /* XXX This should probably be justified better XXX */ } else if (!ast_canmatch_extension(NULL, "default", i->ext, 1, i->cid_num)) { /* It's not a valid extension, give a busy signal */ if (option_debug) ast_log(LOG_DEBUG, "%s can't match anything in %s or default\n", i->ext, i->context); ioctl(i->fd, PHONE_BUSY); i->cpt = 1; } } #if 0 ast_verbose("Extension is %s\n", i->ext); #endif } } if (phonee.bits.hookstate) { offhook = ioctl(i->fd, PHONE_HOOKSTATE); if (offhook) { if (i->mode == MODE_IMMEDIATE) { phone_new(i, AST_STATE_RING, i->context); } else if (i->mode == MODE_DIALTONE) { ast_module_ref(ast_module_info->self); /* Reset the extension */ i->ext[0] = '\0'; /* Play the dialtone */ i->dialtone++; ioctl(i->fd, PHONE_PLAY_STOP); ioctl(i->fd, PHONE_PLAY_CODEC, ULAW); ioctl(i->fd, PHONE_PLAY_START); i->lastformat = -1; } else if (i->mode == MODE_SIGMA) { ast_module_ref(ast_module_info->self); /* Reset the extension */ i->ext[0] = '\0'; /* Play the dialtone */ i->dialtone++; ioctl(i->fd, PHONE_DIALTONE); } } else