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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 { if (i->dialtone) ast_module_unref(ast_module_info->self); memset(i->ext, 0, sizeof(i->ext)); if (i->cpt) { ioctl(i->fd, PHONE_CPT_STOP); i->cpt = 0; } ioctl(i->fd, PHONE_PLAY_STOP); ioctl(i->fd, PHONE_REC_STOP); i->dialtone = 0; i->lastformat = -1; } } if (phonee.bits.pstn_ring) { ast_verbose("Unit is ringing\n"); phone_new(i, AST_STATE_RING, i->context); } if (phonee.bits.caller_id) ast_verbose("We have caller ID\n"); }

static int phone_digit_begin (  struct ast_channel *  ast, char  digit )  [static]

Definition at line 241 of file chan_phone.c. { /* XXX Modify this callback to let Asterisk support controlling the length of DTMF */ return 0; }

static int phone_digit_end (  struct ast_channel *  ast, char  digit, unsigned int  duration )  [static]

Definition at line 247 of file chan_phone.c. References ast_log(), phone_pvt::fd, phone_pvt::lastformat, LOG_DEBUG, LOG_WARNING, and ast_channel::tech_pvt. Referenced by phone_call(). { struct phone_pvt *p; int outdigit; p = ast->tech_pvt; ast_log(LOG_DEBUG, "Dialed %c\n", digit); switch(digit) { case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': outdigit = digit - '0'; break; case '*': outdigit = 11; break; case '#': outdigit = 12; break; case 'f': /*flash*/ case 'F': ioctl(p->fd, IXJCTL_PSTN_SET_STATE, PSTN_ON_HOOK); usleep(320000); ioctl(p->fd, IXJCTL_PSTN_SET_STATE, PSTN_OFF_HOOK); p->lastformat = -1; return 0; default: ast_log(LOG_WARNING, "Unknown digit '%c'\n", digit); return -1; } ast_log(LOG_DEBUG, "Dialed %d\n", outdigit); ioctl(p->fd, PHONE_PLAY_TONE, outdigit); p->lastformat = -1; return 0; }

static struct ast_frame * phone_exception (  struct ast_channel *  ast  )  [static]

Definition at line 501 of file chan_phone.c. References ast_channel::_state, AST_CONTROL_ANSWER, AST_FRAME_CONTROL, AST_FRAME_DTMF, AST_FRAME_NULL, ast_log(), ast_setstate(), AST_STATE_RINGING, AST_STATE_UP, ast_verbose(), ast_frame::data, ast_frame::datalen, ast_frame::delivery, phone_pvt::fd, phone_pvt::fr, ast_frame::frametype, LOG_DEBUG, LOG_WARNING, ast_frame::mallocd, phone_pvt::mode, MODE_FXO, ast_frame::offset, option_debug, phone_setup(), ast_frame::samples, ast_frame::src, ast_frame::subclass, and ast_channel::tech_pvt. { int res; union telephony_exception phonee; struct phone_pvt *p = ast->tech_pvt; char digit; /* Some nice norms */ p->fr.datalen = 0; p->fr.samples = 0; p->fr.data = NULL; p->fr.src = "Phone"; p->fr.offset = 0; p->fr.mallocd=0; p->fr.delivery = ast_tv(0,0); phonee.bytes = ioctl(p->fd, PHONE_EXCEPTION); if (phonee.bits.dtmf_ready) { if (option_debug) ast_log(LOG_DEBUG, "phone_exception(): DTMF\n"); /* We've got a digit -- Just handle this nicely and easily */ digit = ioctl(p->fd, PHONE_GET_DTMF_ASCII); p->fr.subclass = digit; p->fr.frametype = AST_FRAME_DTMF; return &p->fr; } if (phonee.bits.hookstate) { if (option_debug) ast_log(LOG_DEBUG, "Hookstate changed\n"); res = ioctl(p->fd, PHONE_HOOKSTATE); /* See if we've gone on hook, if so, notify by returning NULL */ if (option_debug) ast_log(LOG_DEBUG, "New hookstate: %d\n", res); if (!res && (p->mode != MODE_FXO)) return NULL; else { if (ast->_state == AST_STATE_RINGING) { /* They've picked up the phone */ p->fr.frametype = AST_FRAME_CONTROL; p->fr.subclass = AST_CONTROL_ANSWER; phone_setup(ast); ast_setstate(ast, AST_STATE_UP); return &p->fr; } else ast_log(LOG_WARNING, "Got off hook in weird state %d\n", ast->_state); } } #if 1 if (phonee.bits.pstn_ring) ast_verbose("Unit is ringing\n"); if (phonee.bits.caller_id) { ast_verbose("We have caller ID\n"); } if (phonee.bits.pstn_wink) ast_verbose("Detected Wink\n"); #endif /* Strange -- nothing there.. */ p->fr.frametype = AST_FRAME_NULL; p->fr.subclass = 0; return &p->fr; }

static int phone_fixup (  struct ast_channel *  old, struct ast_channel *  new )  [static]

Definition at line 233 of file chan_phone.c. References phone_pvt::owner, and ast_channel::tech_pvt. { struct phone_pvt *pvt = old->tech_pvt; if (pvt && pvt->owner == old) pvt->owner = new; return 0; }

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

Definition at line 345 of file chan_phone.c. References ast_log(), ast_module_unref(), ast_setstate(), AST_STATE_DOWN, ast_verbose(), phone_pvt::cpt, phone_pvt::dialtone, phone_pvt::ext, phone_pvt::fd, phone_pvt::lastformat, phone_pvt::lastinput, LOG_DEBUG, LOG_WARNING, phone_pvt::ministate, phone_pvt::mode, MODE_FXO, phone_pvt::obuflen, option_debug, option_verbose, phone_pvt::owner, restart_monitor(), ast_channel::tech_pvt, and VERBOSE_PREFIX_3. { struct phone_pvt *p; p = ast->tech_pvt; if (option_debug) ast_log(LOG_DEBUG, "phone_hangup(%s)\n", ast->name); if (!ast->tech_pvt) { ast_log(LOG_WARNING, "Asked to hangup channel not connected\n"); return 0; } /* XXX Is there anything we can do to really hang up except stop recording? */ ast_setstate(ast, AST_STATE_DOWN); if (ioctl(p->fd, PHONE_REC_STOP)) ast_log(LOG_WARNING, "Failed to stop recording\n"); if (ioctl(p->fd, PHONE_PLAY_STOP)) ast_log(LOG_WARNING, "Failed to stop playing\n"); if (ioctl(p->fd, PHONE_RING_STOP)) ast_log(LOG_WARNING, "Failed to stop ringing\n"); if (ioctl(p->fd, PHONE_CPT_STOP)) ast_log(LOG_WARNING, "Failed to stop sounds\n"); /* If it's an FXO, hang them up */ if (p->mode == MODE_FXO) { if (ioctl(p->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",ast->name, strerror(errno)); } } /* If they're off hook, give a busy signal */ if (ioctl(p->fd, PHONE_HOOKSTATE)) { if (option_debug) ast_log(LOG_DEBUG, "Got hunghup, giving busy signal\n"); ioctl(p->fd, PHONE_BUSY); p->cpt = 1; } p->lastformat = -1; p->lastinput = -1; p->ministate = 0; p->obuflen = 0; p->dialtone = 0; memset(p->ext, 0, sizeof(p->ext)); ((struct phone_pvt *)(ast->tech_pvt))->owner = NULL; ast_module_unref(ast_module_info->self); if (option_verbose > 2) ast_verbose( VERBOSE_PREFIX_3 "Hungup '%s'\n", ast->name); ast->tech_pvt = NULL; ast_setstate(ast, AST_STATE_DOWN); restart_monitor(); return 0; }

static int phone_indicate (  struct ast_channel *  chan, int  condition, const void *  data, size_t  datalen )  [static]

Definition at line 207 of file chan_phone.c. References AST_CONTROL_FLASH, AST_CONTROL_HOLD, AST_CONTROL_UNHOLD, ast_log(), ast_moh_start(), ast_moh_stop(), phone_pvt::fd, phone_pvt::lastformat, LOG_DEBUG, LOG_WARNING, option_debug, and ast_channel::tech_pvt. { struct phone_pvt *p = chan->tech_pvt; int res=-1; if (option_debug) ast_log(LOG_DEBUG, "Requested indication %d on channel %s\n", condition, chan->name); switch(condition) { case AST_CONTROL_FLASH: ioctl(p->fd, IXJCTL_PSTN_SET_STATE, PSTN_ON_HOOK); usleep(320000); ioctl(p->fd, IXJCTL_PSTN_SET_STATE, PSTN_OFF_HOOK); p->lastformat = -1; res = 0; break; case AST_CONTROL_HOLD: ast_moh_start(chan, data, NULL); break; case AST_CONTROL_UNHOLD: ast_moh_stop(chan); break; default: ast_log(LOG_WARNING, "Condition %d is not supported on channel %s\n", condition, chan->name); } return res; }

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

Definition at line 927 of file chan_phone.c. References ast_log(), phone_pvt::fd, and LOG_WARNING. Referenced by do_monitor(). { int res; char buf[1024]; /* Ignore stuff we read... */ res = read(i->fd, buf, sizeof(buf)); if (res < 1) { ast_log(LOG_WARNING, "Read returned %d: %s\n", res, strerror(errno)); return; } }

static struct ast_channel* phone_new (  struct phone_pvt *  i, int  state, char *  context )  [static]

Definition at line 864 of file chan_phone.c. References ast_channel_alloc(), AST_FORMAT_SLINEAR, ast_hangup(), ast_log(), ast_module_ref(), ast_pbx_start(), AST_STATE_DOWN, AST_STATE_RING, ast_strdup, ast_string_field_set, ast_strlen_zero(), phone_pvt::cid_name, phone_pvt::cid_num, phone_pvt::cpt, cur_tech, phone_pvt::dev, phone_pvt::ext, phone_pvt::fd, phone_pvt::language, LOG_WARNING, phone_pvt::mode, MODE_FXS, and phone_pvt::owner. Referenced by phone_check_exception(), and phone_request(). { struct ast_channel *tmp; struct phone_codec_data codec; tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, "Phone/%s", i->dev + 5); if (tmp) { tmp->tech = cur_tech; tmp->fds[0] = i->fd; /* XXX Switching formats silently causes kernel panics XXX */ if (i->mode == MODE_FXS && ioctl(i->fd, PHONE_QUERY_CODEC, &codec) == 0) { if (codec.type == LINEAR16) tmp->nativeformats = tmp->rawreadformat = tmp->rawwriteformat = AST_FORMAT_SLINEAR; else { tmp->nativeformats = tmp->rawreadformat = tmp->rawwriteformat = prefformat & ~AST_FORMAT_SLINEAR; } } else { tmp->nativeformats = prefformat; tmp->rawreadformat = prefformat; tmp->rawwriteformat = prefformat; } /* no need to call ast_setstate: the channel_alloc already did its job */ if (state == AST_STATE_RING) tmp->rings = 1; tmp->tech_pvt = i; ast_copy_string(tmp->context, context, sizeof(tmp->context)); if (!ast_strlen_zero(i->ext)) ast_copy_string(tmp->exten, i->ext, sizeof(tmp->exten)); else strcpy(tmp->exten, "s"); if (!ast_strlen_zero(i->language)) ast_string_field_set(tmp, language, i->language); /* Don't use ast_set_callerid() here because it will * generate a NewCallerID event before the NewChannel event */ tmp->cid.cid_num = ast_strdup(i->cid_num); tmp->cid.cid_ani = ast_strdup(i->cid_num); tmp->cid.cid_name = ast_strdup(i->cid_name); i->owner = tmp; ast_module_ref(ast_module_info->self); if (state != AST_STATE_DOWN) { if (state == AST_STATE_RING) { ioctl(tmp->fds[0], PHONE_RINGBACK); i->cpt = 1; } if (ast_pbx_start(tmp)) { ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name); ast_hangup(tmp); } } } else ast_log(LOG_WARNING, "Unable to allocate channel structure\n"); return tmp; }

static struct ast_frame * phone_read (  struct ast_channel *  ast  )  [static]

Definition at line 564 of file chan_phone.c. References ast_clear_flag, AST_FLAG_BLOCKING, AST_FORMAT_MAX_AUDIO, AST_FORMAT_PNG, AST_FORMAT_SLINEAR, ast_frame_byteswap_le, AST_FRAME_IMAGE, AST_FRAME_NULL, AST_FRAME_VIDEO, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), phone_pvt::buf, CHECK_BLOCKING, ast_frame::data, ast_frame::datalen, ast_frame::delivery, phone_pvt::fd, phone_pvt::fr, ast_frame::frametype, phone_pvt::lastinput, LOG_WARNING, ast_frame::mallocd, phone_pvt::mode, MODE_FXS, ast_frame::offset, PHONE_MAX_BUF, ast_frame::samples, ast_frame::src, ast_frame::subclass, and ast_channel::tech_pvt. { int res; struct phone_pvt *p = ast->tech_pvt; /* Some nice norms */ p->fr.datalen = 0; p->fr.samples = 0; p->fr.data = NULL; p->fr.src = "Phone"; p->fr.offset = 0; p->fr.mallocd=0; p->fr.delivery = ast_tv(0,0); /* Try to read some data... */ CHECK_BLOCKING(ast); res = read(p->fd, p->buf, PHONE_MAX_BUF); ast_clear_flag(ast, AST_FLAG_BLOCKING); if (res < 0) { #if 0 if (errno == EAGAIN) { ast_log(LOG_WARNING, "Null frame received\n"); p->fr.frametype = AST_FRAME_NULL; p->fr.subclass = 0; return &p->fr; } #endif ast_log(LOG_WARNING, "Error reading: %s\n", strerror(errno)); return NULL; } p->fr.data = p->buf; if (p->mode != MODE_FXS) switch(p->buf[0] & 0x3) { case '0': case '1': /* Normal */ break; case '2': case '3': /* VAD/CNG, only send two words */ res = 4; break; } p->fr.samples = 240; p->fr.datalen = res; p->fr.frametype = p->lastinput <= AST_FORMAT_MAX_AUDIO ? AST_FRAME_VOICE : p->lastinput <= AST_FORMAT_PNG ? AST_FRAME_IMAGE : AST_FRAME_VIDEO; p->fr.subclass = p->lastinput; p->fr.offset = AST_FRIENDLY_OFFSET; /* Byteswap from little-endian to native-endian */ if (p->fr.subclass == AST_FORMAT_SLINEAR) ast_frame_byteswap_le(&p->fr); return &p->fr; }

static struct ast_channel * phone_request (  const char *  type, int  format, void *  data, int *  cause )  [static]

Definition at line 1240 of file chan_phone.c. References AST_CAUSE_BUSY, AST_FORMAT_G723_1, AST_FORMAT_G729A, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, ast_log(), ast_mutex_lock(), ast_mutex_unlock(), AST_STATE_DOWN, phone_pvt::context, phone_pvt::dev, iflist, LOG_ERROR, LOG_NOTICE, phone_pvt::mode, MODE_FXS, name, phone_pvt::next, phone_pvt::owner, phone_new(), and restart_monitor(). { int oldformat; struct phone_pvt *p; struct ast_channel *tmp = NULL; char *name = data; /* Search for an unowned channel */ if (ast_mutex_lock(&iflock)) { ast_log(LOG_ERROR, "Unable to lock interface list???\n"); return NULL; } p = iflist; while(p) { if (p->mode == MODE_FXS || format & (AST_FORMAT_G729A | AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW)) { size_t length = strlen(p->dev + 5); if (strncmp(name, p->dev + 5, length) == 0 && !isalnum(name[length])) { if (!p->owner) { tmp = phone_new(p, AST_STATE_DOWN, p->context); break; } else *cause = AST_CAUSE_BUSY; } } p = p->next; } ast_mutex_unlock(&iflock); restart_monitor(); if (tmp == NULL) { oldformat = format; format &= (AST_FORMAT_G729A | AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW); if (!format) { ast_log(LOG_NOTICE, "Asked to get a channel of unsupported format '%d'\n", oldformat); return NULL; } } return tmp; }

static int phone_send_text (  struct ast_channel *  ast, const char *  text )  [static]

Definition at line 656 of file chan_phone.c. References phone_write_buf(), and ast_channel::tech_pvt. { int length = strlen(text); return phone_write_buf(ast->tech_pvt, text, length, length, 0) == length ? 0 : -1; }

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

Definition at line 397 of file chan_phone.c. References AST_FORMAT_G723_1, AST_FORMAT_G729A, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, ast_getformatname(), ast_log(), phone_pvt::fd, phone_pvt::lastinput, LOG_WARNING, phone_pvt::mode, MODE_FXS, ast_channel::rawreadformat, and ast_channel::tech_pvt. Referenced by phone_answer(), phone_exception(), and phone_write(). { struct phone_pvt *p; p = ast->tech_pvt; ioctl(p->fd, PHONE_CPT_STOP); /* Nothing to answering really, just start recording */ if (ast->rawreadformat == AST_FORMAT_G729A) { /* Prefer g729 */ ioctl(p->fd, PHONE_REC_STOP); if (p->lastinput != AST_FORMAT_G729A) { p->lastinput = AST_FORMAT_G729A; if (ioctl(p->fd, PHONE_REC_CODEC, G729)) { ast_log(LOG_WARNING, "Failed to set codec to g729\n"); return -1; } } } else if (ast->rawreadformat == AST_FORMAT_G723_1) { ioctl(p->fd, PHONE_REC_STOP); if (p->lastinput != AST_FORMAT_G723_1) { p->lastinput = AST_FORMAT_G723_1; if (ioctl(p->fd, PHONE_REC_CODEC, G723_63)) { ast_log(LOG_WARNING, "Failed to set codec to g723.1\n"); return -1; } } } else if (ast->rawreadformat == AST_FORMAT_SLINEAR) { ioctl(p->fd, PHONE_REC_STOP); if (p->lastinput != AST_FORMAT_SLINEAR) { p->lastinput = AST_FORMAT_SLINEAR; if (ioctl(p->fd, PHONE_REC_CODEC, LINEAR16)) { ast_log(LOG_WARNING, "Failed to set codec to signed linear 16\n"); return -1; } } } else if (ast->rawreadformat == AST_FORMAT_ULAW) { ioctl(p->fd, PHONE_REC_STOP); if (p->lastinput != AST_FORMAT_ULAW) { p->lastinput = AST_FORMAT_ULAW; if (ioctl(p->fd, PHONE_REC_CODEC, ULAW)) { ast_log(LOG_WARNING, "Failed to set codec to uLaw\n"); return -1; } } } else if (p->mode == MODE_FXS) { ioctl(p->fd, PHONE_REC_STOP); if (p->lastinput != ast->rawreadformat) { p->lastinput = ast->rawreadformat; if (ioctl(p->fd, PHONE_REC_CODEC, ast->rawreadformat)) { ast_log(LOG_WARNING, "Failed to set codec to %d\n", ast->rawreadformat); return -1; } } } else { ast_log(LOG_WARNING, "Can't do format %s\n", ast_getformatname(ast->rawreadformat)); return -1; } if (ioctl(p->fd, PHONE_REC_START)) { ast_log(LOG_WARNING, "Failed to start recording\n"); return -1; } /* set the DTMF times (the default is too short) */ ioctl(p->fd, PHONE_SET_TONE_ON_TIME, 300); ioctl(p->fd, PHONE_SET_TONE_OFF_TIME, 200); return 0; }

static int phone_write (  struct ast_channel *  ast, struct ast_frame *  frame )  [static]

Definition at line 663 of file chan_phone.c. References ast_channel::_state, AST_FORMAT_G723_1, AST_FORMAT_G729A, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, AST_FRAME_IMAGE, AST_FRAME_VOICE, ast_log(), ast_setstate(), AST_STATE_UP, ast_frame::data, ast_frame::datalen, phone_pvt::fd, ast_frame::frametype, phone_pvt::lastformat, phone_pvt::lastinput, LOG_WARNING, phone_pvt::mode, MODE_FXS, phone_pvt::obuflen, phone_setup(), phone_write_buf(), phone_pvt::silencesupression, ast_frame::subclass, and ast_channel::tech_pvt. { struct phone_pvt *p = ast->tech_pvt; int res; int maxfr=0; char *pos; int sofar; int expected; int codecset = 0; char tmpbuf[4]; /* Write a frame of (presumably voice) data */ if (frame->frametype != AST_FRAME_VOICE && p->mode != MODE_FXS) { if (frame->frametype != AST_FRAME_IMAGE) ast_log(LOG_WARNING, "Don't know what to do with frame type '%d'\n", frame->frametype); return 0; } if (!(frame->subclass & (AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW | AST_FORMAT_G729A)) && p->mode != MODE_FXS) { ast_log(LOG_WARNING, "Cannot handle frames in %d format\n", frame->subclass); return -1; } #if 0 /* If we're not in up mode, go into up mode now */ if (ast->_state != AST_STATE_UP) { ast_setstate(ast, AST_STATE_UP); phone_setup(ast); } #else if (ast->_state != AST_STATE_UP) { /* Don't try tos end audio on-hook */ return 0; } #endif if (frame->subclass == AST_FORMAT_G729A) { if (p->lastformat != AST_FORMAT_G729A) { ioctl(p->fd, PHONE_PLAY_STOP); ioctl(p->fd, PHONE_REC_STOP); if (ioctl(p->fd, PHONE_PLAY_CODEC, G729)) { ast_log(LOG_WARNING, "Unable to set G729 mode\n"); return -1; } if (ioctl(p->fd, PHONE_REC_CODEC, G729)) { ast_log(LOG_WARNING, "Unable to set G729 mode\n"); return -1; } p->lastformat = AST_FORMAT_G729A; p->lastinput = AST_FORMAT_G729A; /* Reset output buffer */ p->obuflen = 0; codecset = 1; } if (frame->datalen > 80) { ast_log(LOG_WARNING, "Frame size too large for G.729 (%d bytes)\n", frame->datalen); return -1; } maxfr = 80; } else if (frame->subclass == AST_FORMAT_G723_1) { if (p->lastformat != AST_FORMAT_G723_1) { ioctl(p->fd, PHONE_PLAY_STOP); ioctl(p->fd, PHONE_REC_STOP); if (ioctl(p->fd, PHONE_PLAY_CODEC, G723_63)) { ast_log(LOG_WARNING, "Unable to set G723.1 mode\n"); return -1; } if (ioctl(p->fd, PHONE_REC_CODEC, G723_63)) { ast_log(LOG_WARNING, "Unable to set G723.1 mode\n"); return -1; } p->lastformat = AST_FORMAT_G723_1; p->lastinput = AST_FORMAT_G723_1; /* Reset output buffer */ p->obuflen = 0; codecset = 1; } if (frame->datalen > 24) { ast_log(LOG_WARNING, "Frame size too large for G.723.1 (%d bytes)\n", frame->datalen); return -1; } maxfr = 24; } else if (frame->subclass == AST_FORMAT_SLINEAR) { if (p->lastformat != AST_FORMAT_SLINEAR) { ioctl(p->fd, PHONE_PLAY_STOP); ioctl(p->fd, PHONE_REC_STOP); if (ioctl(p->fd, PHONE_PLAY_CODEC, LINEAR16)) { ast_log(LOG_WARNING, "Unable to set 16-bit linear mode\n"); return -1; } if (ioctl(p->fd, PHONE_REC_CODEC, LINEAR16)) { ast_log(LOG_WARNING, "Unable to set 16-bit linear mode\n"); return -1; } p->lastformat = AST_FORMAT_SLINEAR; p->lastinput = AST_FORMAT_SLINEAR; codecset = 1; /* Reset output buffer */ p->obuflen = 0; } maxfr = 480; } else if (frame->subclass == AST_FORMAT_ULAW) { if (p->lastformat != AST_FORMAT_ULAW) { ioctl(p->fd, PHONE_PLAY_STOP); ioctl(p->fd, PHONE_REC_STOP); if (ioctl(p->fd, PHONE_PLAY_CODEC, ULAW)) { ast_log(LOG_WARNING, "Unable to set uLaw mode\n"); return -1; } if (ioctl(p->fd, PHONE_REC_CODEC, ULAW)) { ast_log(LOG_WARNING, "Unable to set uLaw mode\n"); return -1; } p->lastformat = AST_FORMAT_ULAW; p->lastinput = AST_FORMAT_ULAW; codecset = 1; /* Reset output buffer */ p->obuflen = 0; } maxfr = 240; } else { if (p->lastformat != frame->subclass) { ioctl(p->fd, PHONE_PLAY_STOP); ioctl(p->fd, PHONE_REC_STOP); if (ioctl(p->fd, PHONE_PLAY_CODEC, frame->subclass)) { ast_log(LOG_WARNING, "Unable to set %d mode\n", frame->subclass); return -1; } if (ioctl(p->fd, PHONE_REC_CODEC, frame->subclass)) { ast_log(LOG_WARNING, "Unable to set %d mode\n", frame->subclass); return -1; } p->lastformat = frame->subclass; p->lastinput = frame->subclass; codecset = 1; /* Reset output buffer */ p->obuflen = 0; } maxfr = 480; } if (codecset) { ioctl(p->fd, PHONE_REC_DEPTH, 3); ioctl(p->fd, PHONE_PLAY_DEPTH, 3); if (ioctl(p->fd, PHONE_PLAY_START)) { ast_log(LOG_WARNING, "Failed to start playback\n"); return -1; } if (ioctl(p->fd, PHONE_REC_START)) { ast_log(LOG_WARNING, "Failed to start recording\n"); return -1; } } /* If we get here, we have a frame of Appropriate data */ sofar = 0; pos = frame->data; while(sofar < frame->datalen) { /* Write in no more than maxfr sized frames */ expected = frame->datalen - sofar; if (maxfr < expected) expected = maxfr; /* XXX Internet Phone Jack does not handle the 4-byte VAD frame properly! XXX we have to pad it to 24 bytes still. */ if (frame->datalen == 4) { if (p->silencesupression) { memset(tmpbuf + 4, 0, sizeof(tmpbuf) - 4); memcpy(tmpbuf, frame->data, 4); expected = 24; res = phone_write_buf(p, tmpbuf, expected, maxfr, 0); } res = 4; expected=4; } else { int swap = 0; #if __BYTE_ORDER == __BIG_ENDIAN if (frame->subclass == AST_FORMAT_SLINEAR) swap = 1; /* Swap big-endian samples to little-endian as we copy */ #endif res = phone_write_buf(p, pos, expected, maxfr, swap); } if (res != expected) { if ((errno != EAGAIN) && (errno != EINTR)) { if (res < 0) ast_log(LOG_WARNING, "Write returned error (%s)\n", strerror(errno)); /* * Card is in non-blocking mode now and it works well now, but there are * lot of messages like this. So, this message is temporarily disabled. */ #if 0 else ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frame->datalen); #endif return -1; } else /* Pretend it worked */ res = expected; } sofar += res; pos += res; } return 0; }

static int phone_write_buf (  struct phone_pvt *  p, const char *  buf, int  len, int  frlen, int  swap )  [static]

Definition at line 622 of file chan_phone.c. References ast_log(), ast_swapcopy_samples(), phone_pvt::fd, LOG_WARNING, phone_pvt::obuf, phone_pvt::obuflen, and space. Referenced by phone_send_text(), and phone_write(). { int res; /* Store as much of the buffer as we can, then write fixed frames */ int space = sizeof(p->obuf) - p->obuflen; /* Make sure we have enough buffer space to store the frame */ if (space < len) len = space; if (swap) ast_swapcopy_samples(p->obuf+p->obuflen, buf, len/2); else memcpy(p->obuf + p->obuflen, buf, len); p->obuflen += len; while(p->obuflen > frlen) { res = write(p->fd, p->obuf, frlen); if (res != frlen) { if (res < 1) { /* * Card is in non-blocking mode now and it works well now, but there are * lot of messages like this. So, this message is temporarily disabled. */ return 0; } else { ast_log(LOG_WARNING, "Only wrote %d of %d bytes\n", res, frlen); } } p->obuflen -= frlen; /* Move memory if necessary */ if (p->obuflen) memmove(p->obuf, p->obuf + frlen, p->obuflen); } return len; }

static int restart_monitor (  void   )  [static]

Start the channel monitor thread. Definition at line 1139 of file chan_phone.c. References ast_log(), ast_mutex_lock(), ast_mutex_unlock(), ast_pthread_create_background, AST_PTHREADT_NULL, AST_PTHREADT_STOP, do_monitor(), LOG_ERROR, and LOG_WARNING. { /* If we're supposed to be stopped -- stay stopped */ if (monitor_thread == AST_PTHREADT_STOP) return 0; if (ast_mutex_lock(&monlock)) { ast_log(LOG_WARNING, "Unable to lock monitor\n"); return -1; } if (monitor_thread == pthread_self()) { ast_mutex_unlock(&monlock); ast_log(LOG_WARNING, "Cannot kill myself\n"); return -1; } if (monitor_thread != AST_PTHREADT_NULL) { if (ast_mutex_lock(&iflock)) { ast_mutex_unlock(&monlock); ast_log(LOG_WARNING, "Unable to lock the interface list\n"); return -1; } monitor = 0; while (pthread_kill(monitor_thread, SIGURG) == 0) sched_yield(); pthread_join(monitor_thread, NULL); ast_mutex_unlock(&iflock); } monitor = 1; /* Start a new monitor */ if (ast_pthread_create_background(&monitor_thread, NULL, do_monitor, NULL) < 0) { ast_mutex_unlock(&monlock); ast_log(LOG_ERROR, "Unable to start monitor thread.\n"); return -1; } ast_mutex_unlock(&monlock); return 0; }

static int unload_module (  void   )  [static]

Definition at line 1359 of file chan_phone.c. References __unload_module(). { return __unload_module(); }

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Variable Documentation

char cid_name[AST_MAX_EXTENSION] [static]

Definition at line 155 of file chan_phone.c.

char cid_num[AST_MAX_EXTENSION] [static]

Definition at line 154 of file chan_phone.c.

const char config[] = "phone.conf" [static]

Definition at line 89 of file chan_phone.c.

char context[AST_MAX_EXTENSION] = "default" [static]

Definition at line 92 of file chan_phone.c.

struct ast_channel_tech* cur_tech [static]

Definition at line 205 of file chan_phone.c. Referenced by __unload_module(), load_module(), and phone_new().

int echocancel = AEC_OFF [static]

Definition at line 97 of file chan_phone.c.

struct phone_pvt * iflist [static]

char language[MAX_LANGUAGE] = "" [static]

Definition at line 95 of file chan_phone.c.

unsigned int monitor [static]

Definition at line 111 of file chan_phone.c. Referenced by ast_monitor_start().

pthread_t monitor_thread = AST_PTHREADT_NULL [static]

Definition at line 115 of file chan_phone.c.

const struct ast_channel_tech phone_tech [static]

Definition at line 170 of file chan_phone.c. Referenced by load_module().

struct ast_channel_tech phone_tech_fxs [static]

Definition at line 187 of file chan_phone.c. Referenced by load_module().

int prefformat = AST_FORMAT_G729A | AST_FORMAT_G723_1 | AST_FORMAT_SLINEAR | AST_FORMAT_ULAW [static]

Definition at line 101 of file chan_phone.c.

int silencesupression = 0 [static]

Definition at line 99 of file chan_phone.c.

const char tdesc[] = "Standard Linux Telephony API Driver" [static]

Definition at line 88 of file chan_phone.c.

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