From ce81ea81221ba91c5931ead9b437b0fec4c5ad7c Mon Sep 17 00:00:00 2001 From: "Kevin P. Fleming" Date: Wed, 4 Jan 2006 23:33:59 +0000 Subject: [PATCH] remove deprecated chan_modem drivers git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7802 65c4cc65-6c06-0410-ace0-fbb531ad65f3 --- channels/Makefile | 11 - channels/chan_modem.c | 1120 -------------------------------- channels/chan_modem_aopen.c | 502 -------------- channels/chan_modem_bestdata.c | 615 ------------------ channels/chan_modem_i4l.c | 745 --------------------- 5 files changed, 2993 deletions(-) delete mode 100644 channels/chan_modem.c delete mode 100644 channels/chan_modem_aopen.c delete mode 100644 channels/chan_modem_bestdata.c delete mode 100644 channels/chan_modem_i4l.c diff --git a/channels/Makefile b/channels/Makefile index 314a9ee616..56935d941e 100644 --- a/channels/Makefile +++ b/channels/Makefile @@ -16,11 +16,6 @@ CHANNEL_LIBS=chan_sip.so chan_agent.so chan_mgcp.so chan_iax2.so chan_local.so chan_skinny.so chan_features.so -ifneq (${OSARCH},CYGWIN) -# if you really, really want to use these drivers, uncomment the line below -#CHANNEL_LIBS+=chan_modem.so chan_modem_aopen.so chan_modem_bestdata.so -endif - ifeq ($(findstring BSD,${OSARCH}),BSD) CFLAGS+=-I$(CROSS_COMPILE_TARGET)/usr/local/include -L$(CROSS_COMPILE_TARGET)/usr/local/lib endif @@ -61,9 +56,6 @@ endif ifneq (${OSARCH},Darwin) ifneq (${OSARCH},SunOS) ifneq (${OSARCH},CYGWIN) -# the ISDN4Linux channel driver is probably broken on all modern kernels, -# but if you wish to try to use it, uncomment the line below -# CHANNEL_LIBS+=chan_modem_i4l.so CHANNEL_LIBS+=chan_oss.so endif endif @@ -242,9 +234,6 @@ chan_misdn.so: chan_misdn.o chan_misdn_config.o misdn/chan_misdn_lib.a chan_misdn.o: chan_misdn.c $(CC) $(CFLAGS) -DCHAN_MISDN_VERSION=\"0.2.1\" -c $< -o $@ -#chan_modem.so : chan_modem.o -# $(CC) -rdynamic -shared -Xlinker -x -o $@ $< - install: all for x in $(CHANNEL_LIBS); do $(INSTALL) -m 755 $$x $(DESTDIR)$(MODULES_DIR) ; done if ! [ -f chan_iax.so ]; then rm -f $(DESTDIR)$(MODULES_DIR)/chan_iax.so ; fi diff --git a/channels/chan_modem.c b/channels/chan_modem.c deleted file mode 100644 index 86f6afa30d..0000000000 --- a/channels/chan_modem.c +++ /dev/null @@ -1,1120 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer - * - * 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 A/Open ITU-56/2 Voice Modem Driver (Rockwell, IS-101, and others) - * - * \author Mark Spencer - * - * \ingroup channel_drivers - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#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/vmodem.h" -#include "asterisk/utils.h" - -/* Up to 10 seconds for an echo to arrive */ -#define ECHO_TIMEOUT 10 - -static const char desc[] = "Generic Voice Modem Driver"; -static const char tdesc[] = "Generic Voice Modem Channel Driver"; -static const char type[] = "Modem"; -static const char config[] = "modem.conf"; -static char dialtype = 'T'; -static int gmode = MODEM_MODE_IMMEDIATE; - -/* Default modem type */ -static char mtype[80] = "autodetect"; -/* Default context for incoming calls */ -static char context[AST_MAX_EXTENSION]= "default"; - -/* Default language */ -static char language[MAX_LANGUAGE] = ""; - -/* Initialization String */ -static char initstr[AST_MAX_INIT_STR] = "ATE0Q0"; - -/* Default MSN */ -static char msn[AST_MAX_EXTENSION]=""; - -/* Default Listen */ -static char incomingmsn[AST_MAX_EXTENSION]=""; - -/* Default DTMF-detection mode (i4l/asterisk) */ -static int dtmfmode = MODEM_DTMF_AST; -/* Default DTMF-generation mode (i4l (outband) / asterisk (inband) */ -static int dtmfmodegen = MODEM_DTMF_AST; - -struct ast_dsp *dsp = NULL; - -/* Default valid outgoing MSN */ -static char outgoingmsn[AST_MAX_EXTENSION]=""; - -/* Default group */ -static ast_group_t cur_group = 0; - -static int usecnt =0; - -static int baudrate = 115200; - -static int stripmsd = 0; - -AST_MUTEX_DEFINE_STATIC(usecnt_lock); - -/* Protect the interface list (of ast_modem_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 = AST_PTHREADT_NULL; - -static int restart_monitor(void); - -int dep_warning = 0; - -static struct ast_channel *modem_request(const char *type, int format, void *data, int *cause); -static int modem_digit(struct ast_channel *ast, char digit); -static int modem_call(struct ast_channel *ast, char *idest, int timeout); -static int modem_hangup(struct ast_channel *ast); -static int modem_answer(struct ast_channel *ast); -static struct ast_frame *modem_read(struct ast_channel *); -static int modem_write(struct ast_channel *ast, struct ast_frame *frame); -static int modem_fixup(struct ast_channel *oldchan, struct ast_channel *newchan); - -static const struct ast_channel_tech modem_tech = { - .type = type, - .description = tdesc, - .capabilities = AST_FORMAT_SLINEAR, - .requester = modem_request, - .send_digit = modem_digit, - .call = modem_call, - .hangup = modem_hangup, - .answer = modem_answer, - .read = modem_read, - .write = modem_write, - .fixup = modem_fixup, -}; - -/* The private structures of the Phone Jack channels are linked for - selecting outgoing channels */ - -static struct ast_modem_pvt *iflist = NULL; - -static int modem_digit(struct ast_channel *ast, char digit) -{ - struct ast_modem_pvt *p; - p = ast->tech_pvt; - if (p->mc->dialdigit) - return p->mc->dialdigit(p, digit); - ast_log(LOG_DEBUG, "Channel %s lacks digit dialing\n", ast->name); - return -1; -} - -static struct ast_modem_driver *drivers = NULL; - -static struct ast_modem_driver *find_capability(char *ident) -{ - struct ast_modem_driver *mc; - int x; - mc = drivers; - while(mc) { - for (x=0;mc->idents[x];x++) { - if (!strcmp(ident, mc->idents[x])) - break; - } - if (mc->idents[x]) - break; - mc = mc->next; - } - if (mc) { - if (mc->incusecnt) - mc->incusecnt(); - } - return mc; -} - -static struct ast_modem_driver *find_driver(char *drv) -{ - struct ast_modem_driver *mc; - mc = drivers; - while(mc) { - if (!strcasecmp(mc->name, drv)) - break; - mc = mc->next; - } - if (mc) { - if (mc->incusecnt) - mc->incusecnt(); - } - return mc; -} - -int ast_register_modem_driver(struct ast_modem_driver *mc) -{ - mc->next = drivers; - drivers = mc; - return 0; -} - -int ast_unregister_modem_driver(struct ast_modem_driver *mc) -{ - struct ast_modem_driver *last = NULL, *cur; - cur = drivers; - while(cur) { - if (cur == mc) { - if (last) - last->next = mc->next; - else - drivers = mc->next; - return 0; - } - cur = cur->next; - } - return -1; -} - -static int modem_call(struct ast_channel *ast, char *idest, int timeout) -{ - struct ast_modem_pvt *p; - int ms = timeout; - char rdest[80], *where, dstr[100] = ""; - char *stringp=NULL; - strncpy(rdest, idest, sizeof(rdest)-1); - stringp=rdest; - strsep(&stringp, ":"); - where = strsep(&stringp, ":"); - if (!where) { - ast_log(LOG_WARNING, "Destination %s requres a real destination (device:destination)\n", idest); - return -1; - } - p = ast->tech_pvt; - strncpy(dstr, where + p->stripmsd, sizeof(dstr) - 1); - /* if not a transfer or just sending tones, must be in correct state */ - if (strcasecmp(rdest, "transfer") && strcasecmp(rdest,"sendtones")) { - if ((ast->_state != AST_STATE_DOWN) && (ast->_state != AST_STATE_RESERVED)) { - ast_log(LOG_WARNING, "modem_call called on %s, neither down nor reserved\n", ast->name); - return -1; - } - } - if (!strcasecmp(rdest,"transfer")) /* if a transfer, put in transfer stuff */ - { - snprintf(dstr, sizeof(dstr), "!,%s", where + p->stripmsd); - } - if (!strcasecmp(where, "handset")) { - if (p->mc->setdev) - if (p->mc->setdev(p, MODEM_DEV_HANDSET)) - return -1; - /* Should be immediately up */ - ast_setstate(ast, AST_STATE_UP); - } else { - if (p->mc->setdev) - if (p->mc->setdev(p, MODEM_DEV_TELCO_SPK)) - return -1; - if (p->mc->dial) - p->mc->dial(p, dstr); - ast_setstate(ast, AST_STATE_DIALING); - while((ast->_state != AST_STATE_UP) && (ms > 0)) { - ms = ast_waitfor(ast, ms); - /* Just read packets and watch what happens */ - if (ms > 0) { - if (!modem_read(ast)) - return -1; - } - } - if (ms < 0) - return -1; - } - return 0; -} - -int ast_modem_send(struct ast_modem_pvt *p, char *cmd, int len) -{ - int i; - usleep(5000); - if (!len) { - for(i = 0; cmd[i];) - { - if (fwrite(cmd + i,1,1,p->f) != 1) - { - if (errno == EWOULDBLOCK) continue; - return -1; - } - i++; - } - tcdrain(fileno(p->f)); - fprintf(p->f,"\r\n"); - return 0; - } else { - if (fwrite(cmd, 1, len, p->f) < len) - return -1; - return 0; - } -} - -int ast_modem_read_response(struct ast_modem_pvt *p, int timeout) -{ - int res = -1,c,i; - timeout *= 1000; - p->response[0] = 0; - c = i = 0; - do { - res = ast_waitfor_n_fd(&p->fd, 1, &timeout, NULL); - if (res < 0) { - strncpy(p->response, "(No Response)", sizeof(p->response)-1); - return -1; - } - /* get no more then buffer length */ - while(i < sizeof(p->response) - 1) - { - c = fgetc(p->f); /* get a char */ - if (c < 1) /* if error */ - { - /* if nothing in buffer, go back into timeout stuff */ - if (errno == EWOULDBLOCK) break; - /* return as error */ - strncpy(p->response, "(No Response)", sizeof(p->response)-1); - return -1; - } - /* save char */ - p->response[i++] = c; - p->response[i] = 0; - /* if end of input */ - if (c == '\n') break; - } - if (c >= 0) /* if input terminated normally */ - { - /* ignore just CR/LF */ - if (!strcmp(p->response,"\r\n")) - { - /* reset input buffer stuff */ - i = 0; - p->response[0] = 0; - } - else /* otherwise return with info in buffer */ - { - return 0; - } - } - } while(timeout > 0); - strncpy(p->response, "(No Response)", sizeof(p->response)-1); - return -1; -} - -int ast_modem_expect(struct ast_modem_pvt *p, char *result, int timeout) -{ - int res = -1; - timeout *= 1000; - strncpy(p->response, "(No Response)", sizeof(p->response)-1); - do { - res = ast_waitfor_n_fd(&p->fd, 1, &timeout, NULL); - if (res < 0) { - return -1; - } - /* Read a response */ - fgets(p->response, sizeof(p->response), p->f); -#if 0 - fprintf(stderr, "Modem said: %s", p->response); -#endif - if (!strncasecmp(p->response, result, strlen(result))) - return 0; - } while(timeout > 0); - return -1; -} - -void ast_modem_trim(char *s) -{ - int x; - x = strlen(s) - 1; - while(x >= 0) { - if ((s[x] != '\r') && (s[x] != '\n') && (s[x] != ' ')) - break; - s[x] = '\0'; - x--; - } -} - -static int modem_setup(struct ast_modem_pvt *p, int baudrate) -{ - - /* Make sure there's a modem there and that it's in a reasonable - mode. Set the baud rate, etc. */ - char identity[256]; - char *ident = NULL; - char etx[2] = { 0x10, '!' }; - if (option_debug) - ast_log(LOG_DEBUG, "Setting up modem %s\n", p->dev); - if (ast_modem_send(p, etx, 2)) { - ast_log(LOG_WARNING, "Failed to send ETX?\n"); - return -1; - } - if (ast_modem_send(p, "\r\n", 2)) { - ast_log(LOG_WARNING, "Failed to send enter?\n"); - return -1; - } - usleep(10000); - /* Read any outstanding stuff */ - while(!ast_modem_read_response(p, 0)); - if (ast_modem_send(p, "ATZ", 0)) { - ast_log(LOG_WARNING, "Modem not responding on %s\n", p->dev); - return -1; - } - if (ast_modem_expect(p, "OK", ECHO_TIMEOUT)) { - ast_log(LOG_WARNING, "Modem reset failed: %s\n", p->response); - return -1; - } - if (ast_modem_send(p, p->initstr, 0)) { - ast_log(LOG_WARNING, "Modem not responding on %s\n", p->dev); - return -1; - } - if (ast_modem_expect(p, "OK", ECHO_TIMEOUT)) { - ast_log(LOG_WARNING, "Modem initialization failed: %s\n", p->response); - return -1; - } - if (ast_modem_send(p, "ATI3", 0)) { - ast_log(LOG_WARNING, "Modem not responding on %s\n", p->dev); - return -1; - } - if (ast_modem_read_response(p, ECHO_TIMEOUT)) { - ast_log(LOG_WARNING, "Modem did not provide identification\n"); - return -1; - } - strncpy(identity, p->response, sizeof(identity)-1); - ast_modem_trim(identity); - if (ast_modem_expect(p, "OK", ECHO_TIMEOUT)) { - ast_log(LOG_WARNING, "Modem did not provide identification\n"); - return -1; - } - if (!strcasecmp(mtype, "autodetect")) { - p->mc = find_capability(identity); - if (!p->mc) { - ast_log(LOG_WARNING, "Unable to autodetect modem. You'll need to specify a driver in modem.conf. Please report modem identification (%s) and which driver works to markster@linux-support.net.\n", identity); - return -1; - } - } else { - p->mc = find_driver(mtype); - if (!p->mc) { - ast_log(LOG_WARNING, "No driver for modem type '%s'\n", mtype); - return -1; - } - } - if (p->mc->init) { - if (p->mc->init(p)) { - ast_log(LOG_WARNING, "Modem Initialization Failed on '%s', driver %s.\n", p->dev, p->mc->name); - p->mc->decusecnt(); - return -1; - } - } - if (option_verbose > 2) { - ast_verbose(VERBOSE_PREFIX_3 "Configured modem %s with driver %s (%s)\n", p->dev, p->mc->name, p->mc->identify ? (ident = p->mc->identify(p)) : "No identification"); - } - if (ident) - free(ident); - return 0; -} - -static int modem_hangup(struct ast_channel *ast) -{ - struct ast_modem_pvt *p; - if (option_debug) - ast_log(LOG_DEBUG, "modem_hangup(%s)\n", ast->name); - p = ast->tech_pvt; - /* Hang up */ - if (p->mc->hangup) - p->mc->hangup(p); - /* Re-initialize */ - if (p->mc->init) - p->mc->init(p); - ast_setstate(ast, AST_STATE_DOWN); - memset(p->cid_num, 0, sizeof(p->cid_num)); - memset(p->cid_name, 0, sizeof(p->cid_name)); - memset(p->dnid, 0, sizeof(p->dnid)); - ((struct ast_modem_pvt *)(ast->tech_pvt))->owner = NULL; - ast_mutex_lock(&usecnt_lock); - usecnt--; - if (usecnt < 0) - ast_log(LOG_WARNING, "Usecnt < 0???\n"); - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); - 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 modem_answer(struct ast_channel *ast) -{ - struct ast_modem_pvt *p; - int res=0; - if (option_debug) - ast_log(LOG_DEBUG, "modem_answer(%s)\n", ast->name); - p = ast->tech_pvt; - if (p->mc->answer) { - res = p->mc->answer(p); - } - if (!res) { - ast->rings = 0; - ast_setstate(ast, AST_STATE_UP); - } - return res; -} - -#if 0 -static char modem_2digit(char c) -{ - if (c == 12) - return '#'; - else if (c == 11) - return '*'; - else if ((c < 10) && (c >= 0)) - return '0' + c - 1; - else - return '?'; -} -#endif -static struct ast_frame *modem_read(struct ast_channel *ast) -{ - struct ast_modem_pvt *p = ast->tech_pvt; - struct ast_frame *fr=NULL; - if (p->mc->read) - fr = p->mc->read(p); - return fr; -} - -static int modem_write(struct ast_channel *ast, struct ast_frame *frame) -{ - int res=0; - long flags; - struct ast_modem_pvt *p = ast->tech_pvt; - - /* Modems tend to get upset when they receive data whilst in - * command mode. This makes esp. dial commands short lived. - * Pauline Middelink - 2002-09-24 */ - if (ast->_state != AST_STATE_UP) - return 0; - - /* Temporarily make non-blocking */ - flags = fcntl(ast->fds[0], F_GETFL); - fcntl(ast->fds[0], F_SETFL, flags | O_NONBLOCK); - - if (p->mc->write) - res = p->mc->write(p, frame); - - /* Block again */ - fcntl(ast->fds[0], F_SETFL, flags); - return res; -} - -static int modem_fixup(struct ast_channel *oldchan, struct ast_channel *newchan) -{ - struct ast_modem_pvt *p = newchan->tech_pvt; -ast_log(LOG_WARNING, "fixup called\n"); - if (p->owner!=oldchan) { - ast_log(LOG_WARNING, "old channel wasn't %p but was %p\n",oldchan,p->owner); - return -1; - } - p->owner = newchan; - return 0; -} - -struct ast_channel *ast_modem_new(struct ast_modem_pvt *i, int state) -{ - struct ast_channel *tmp; - tmp = ast_channel_alloc(1); - if (tmp) { - tmp->tech = &modem_tech; - snprintf(tmp->name, sizeof(tmp->name), "Modem[%s]/%s", i->mc->name, i->dev + 5); - tmp->type = type; - tmp->fds[0] = i->fd; - tmp->nativeformats = i->mc->formats; - ast_setstate(tmp, state); - if (state == AST_STATE_RING) - tmp->rings = 1; - tmp->tech_pvt = i; - strncpy(tmp->context, i->context, sizeof(tmp->context)-1); - - if (!ast_strlen_zero(i->cid_num)) - tmp->cid.cid_num = strdup(i->cid_num); - if (!ast_strlen_zero(i->cid_name)) - tmp->cid.cid_name = strdup(i->cid_name); - - if (!ast_strlen_zero(i->language)) - strncpy(tmp->language,i->language, sizeof(tmp->language)-1); - if (!ast_strlen_zero(i->dnid)) - strncpy(tmp->exten, i->dnid, sizeof(tmp->exten) - 1); - i->owner = tmp; - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); - if (state != AST_STATE_DOWN) { - if (ast_pbx_start(tmp)) { - ast_log(LOG_WARNING, "Unable to start PBX on %s\n", tmp->name); - ast_hangup(tmp); - tmp = NULL; - } - } - } else - ast_log(LOG_WARNING, "Unable to allocate channel structure\n"); - return tmp; -} - -static void modem_mini_packet(struct ast_modem_pvt *i) -{ - struct ast_frame *fr; - fr = i->mc->read(i); - if (!fr) return; - if (fr->frametype == AST_FRAME_CONTROL) { - if (fr->subclass == AST_CONTROL_RING) { - ast_modem_new(i, AST_STATE_RING); - } - } -} - -static void *do_monitor(void *data) -{ - fd_set rfds, efds; - int n, res; - struct ast_modem_pvt *i; - /* This thread monitors all the frame relay interfaces which are not yet in use - (and thus do not have a separate thread) indefinitely */ - /* From here on out, we die whenever asked */ -#if 0 - if (pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL)) { - ast_log(LOG_WARNING, "Unable to set cancel type to asynchronous\n"); - return NULL; - } -#endif - for(;;) { - /* 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. */ - if (ast_mutex_lock(&monlock)) { - ast_log(LOG_ERROR, "Unable to grab monitor lock\n"); - return NULL; - } - /* Lock the interface list */ - if (ast_mutex_lock(&iflock)) { - ast_log(LOG_ERROR, "Unable to grab interface lock\n"); - ast_mutex_unlock(&monlock); - return NULL; - } - /* Build the stuff we're going to select on, that is the socket of every - ast_modem_pvt that does not have an associated owner channel */ - n = -1; - FD_ZERO(&rfds); - FD_ZERO(&efds); - i = iflist; - 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; - } - - i = i->next; - } - /* Okay, now that we know what to do, release the interface lock */ - ast_mutex_unlock(&iflock); - - /* And from now on, we're okay to be killed, so release the monitor lock as well */ - ast_mutex_unlock(&monlock); -#if 0 - ast_log(LOG_DEBUG, "In monitor, n=%d, pid=%d\n", n, getpid()); -#endif - /* Wait indefinitely for something to happen */ - pthread_testcancel(); - res = ast_select(n + 1, &rfds, NULL, &efds, NULL); - pthread_testcancel(); - /* Okay, select has finished. Let's see what happened. */ - if (res < 1) { - if ((errno != EINTR) && (errno != EAGAIN)) - ast_log(LOG_WARNING, "select return %d: %s\n", res, strerror(errno)); - 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; - while(i) { - if (FD_ISSET(i->fd, &rfds) || FD_ISSET(i->fd, &efds)) { - if (i->owner) { - ast_log(LOG_WARNING, "Whoa.... I'm owned but found (%d, %s)...\n", i->fd, i->dev); - i = i->next; - continue; - } - modem_mini_packet(i); - } - i=i->next; - } - ast_mutex_unlock(&iflock); - } - /* Never reached */ - return NULL; - -} - -static int restart_monitor() -{ - /* 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) { - pthread_cancel(monitor_thread); - /* Nudge it a little, as it's probably stuck in select */ - pthread_kill(monitor_thread, SIGURG); - pthread_join(monitor_thread, NULL); - } - /* Start a new monitor */ - if (ast_pthread_create(&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 void stty(struct ast_modem_pvt *p) -{ - struct termios mode; - memset(&mode, 0, sizeof(mode)); - if (tcgetattr(p->fd, &mode)) { - ast_log(LOG_WARNING, "Unable to get serial parameters on %s: %s\n", p->dev, strerror(errno)); - return; - } -#ifndef SOLARIS - cfmakeraw(&mode); -#else - mode.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP - |INLCR|IGNCR|ICRNL|IXON); - mode.c_oflag &= ~OPOST; - mode.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN); - mode.c_cflag &= ~(CSIZE|PARENB); - mode.c_cflag |= CS8; -#endif - - cfsetispeed(&mode, B115200); - cfsetospeed(&mode, B115200); - if (tcsetattr(p->fd, TCSANOW, &mode)) - ast_log(LOG_WARNING, "Unable to set serial parameters on %s: %s\n", p->dev, strerror(errno)); - -} - -static struct ast_modem_pvt *mkif(char *iface) -{ - /* Make a ast_modem_pvt structure for this interface */ - struct ast_modem_pvt *tmp; -#if 0 - int flags; -#endif - - tmp = malloc(sizeof(struct ast_modem_pvt)); - if (tmp) { - memset(tmp, 0, sizeof(struct ast_modem_pvt)); - tmp->fd = open(iface, O_RDWR | O_NONBLOCK); - if (tmp->fd < 0) { - ast_log(LOG_WARNING, "Unable to open '%s'\n", iface); - free(tmp); - return NULL; - } - strncpy(tmp->language, language, sizeof(tmp->language)-1); - strncpy(tmp->msn, msn, sizeof(tmp->msn)-1); - strncpy(tmp->incomingmsn, incomingmsn, sizeof(tmp->incomingmsn)-1); - tmp->dtmfmode = dtmfmode; - tmp->dtmfmodegen = dtmfmodegen; - snprintf(tmp->outgoingmsn, sizeof(tmp->outgoingmsn), ",%s,", outgoingmsn); - strncpy(tmp->dev, iface, sizeof(tmp->dev)-1); - /* Maybe in the future we want to allow variable - serial settings */ - stty(tmp); - tmp->f = fdopen(tmp->fd, "w+"); - /* Disable buffering */ - setvbuf(tmp->f, NULL, _IONBF,0); - if (tmp->f < 0) { - ast_log(LOG_WARNING, "Unable to fdopen '%s'\n", iface); - free(tmp); - return NULL; - } - tmp->owner = NULL; - tmp->ministate = 0; - tmp->stripmsd = stripmsd; - tmp->dialtype = dialtype; - tmp->mode = gmode; - tmp->group = cur_group; - memset(tmp->cid_num, 0, sizeof(tmp->cid_num)); - memset(tmp->cid_name, 0, sizeof(tmp->cid_name)); - strncpy(tmp->context, context, sizeof(tmp->context)-1); - strncpy(tmp->initstr, initstr, sizeof(tmp->initstr)-1); - tmp->next = NULL; - tmp->obuflen = 0; - - if (modem_setup(tmp, baudrate) < 0) { - ast_log(LOG_WARNING, "Unable to configure modem '%s'\n", iface); - free(tmp); - return NULL; - } - } - return tmp; -} - -static struct ast_channel *modem_request(const char *type, int format, void *data, int *cause) -{ - int oldformat; - struct ast_modem_pvt *p; - struct ast_channel *tmp = NULL; - char dev[80]; - ast_group_t group = 0; - int groupint; - char *stringp=NULL; - strncpy(dev, (char *)data, sizeof(dev)-1); - stringp=dev; - strsep(&stringp, ":"); - oldformat = format; - - if (!dep_warning) { - ast_log(LOG_WARNING, "This channel driver is deprecated. Please see the UPGRADE.txt file.\n"); - dep_warning = 1; - } - - if (dev[0]=='g' && isdigit(dev[1])) { - /* Retrieve the group number */ - if (sscanf(dev+1, "%u", &groupint) < 1) { - ast_log(LOG_WARNING, "Unable to determine group from [%s]\n", (char *)data); - return NULL; - } - group = 1 << groupint; - } - - /* 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 (group) { - /* if it belongs to the proper group, and the format matches - * and it is not in use, we found a candidate! */ - if (p->group & group && - p->mc->formats & format && - !p->owner) { - /* XXX Not quite sure that not having an owner is - * sufficient evidence of beeing a free device XXX */ - tmp = ast_modem_new(p, AST_STATE_DOWN); - restart_monitor(); - break; - } - } else { - if (!strcmp(dev, p->dev + 5)) { - if (p->mc->formats & format) { - if (!p->owner) { - tmp = ast_modem_new(p, AST_STATE_DOWN); - restart_monitor(); - break; - } else - ast_log(LOG_WARNING, "Device '%s' is busy\n", p->dev); - } else - ast_log(LOG_WARNING, "Asked for a format %s line on %s\n", ast_getformatname(format), p->dev); - break; - } - } - p = p->next; - } - if (!p) - ast_log(LOG_WARNING, "Requested device '%s' does not exist\n", dev); - - ast_mutex_unlock(&iflock); - return tmp; -} - -static ast_group_t get_group(char *s) -{ - char *piece; - int start, finish,x; - ast_group_t group = 0; - char *copy = ast_strdupa(s); - char *stringp=NULL; - if (!copy) { - ast_log(LOG_ERROR, "Out of memory\n"); - return 0; - } - stringp=copy; - piece = strsep(&stringp, ","); - while(piece) { - if (sscanf(piece, "%d-%d", &start, &finish) == 2) { - /* Range */ - } else if (sscanf(piece, "%d", &start)) { - /* Just one */ - finish = start; - } else { - ast_log(LOG_ERROR, "Syntax error parsing '%s' at '%s'. Using '0'\n", s,piece); - return 0; - } - piece = strsep(&stringp, ","); - - for (x=start;x<=finish;x++) { - if ((x > 63) || (x < 0)) { - ast_log(LOG_WARNING, "Ignoring invalid group %d\n", x); - break; - } - group |= (1 << x); - } - } - return group; -} - -static int __unload_module(void) -{ - struct ast_modem_pvt *p, *pl; - /* First, take us out of the channel loop */ - ast_channel_unregister(&modem_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_thread != AST_PTHREADT_STOP) { - pthread_cancel(monitor_thread); - 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; -} - -int unload_module() -{ - return __unload_module(); -} - -int load_module() -{ - struct ast_config *cfg; - struct ast_variable *v; - struct ast_modem_pvt *tmp; - char driver[80]; - 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 -1; - } - 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); - 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, "driver")) { - snprintf(driver, sizeof(driver), "chan_modem_%s.so", v->value); - if (option_verbose > 1) - ast_verbose(VERBOSE_PREFIX_2 "Loading modem driver %s", driver); - - if (ast_load_resource(driver)) { - ast_log(LOG_ERROR, "Failed to load driver %s\n", driver); - ast_config_destroy(cfg); - ast_mutex_unlock(&iflock); - __unload_module(); - return -1; - } - } else if (!strcasecmp(v->name, "mode")) { - if (!strncasecmp(v->value, "ri", 2)) - gmode = MODEM_MODE_WAIT_RING; - else if (!strncasecmp(v->value, "im", 2)) - gmode = MODEM_MODE_IMMEDIATE; - else if (!strncasecmp(v->value, "an", 2)) - gmode = MODEM_MODE_WAIT_ANSWER; - else - ast_log(LOG_WARNING, "Unknown mode: %s\n", v->value); - } else if (!strcasecmp(v->name, "stripmsd")) { - stripmsd = atoi(v->value); - } else if (!strcasecmp(v->name, "type")) { - strncpy(mtype, v->value, sizeof(mtype)-1); - } else if (!strcasecmp(v->name, "initstr")) { - strncpy(initstr, v->value, sizeof(initstr)-1); - } else if (!strcasecmp(v->name, "dialtype")) { - dialtype = toupper(v->value[0]); - } else if (!strcasecmp(v->name, "context")) { - strncpy(context, v->value, sizeof(context)-1); - } else if (!strcasecmp(v->name, "msn")) { - strncpy(msn, v->value, sizeof(msn)-1); - } else if (!strcasecmp(v->name, "incomingmsn")) { - strncpy(incomingmsn, v->value, sizeof(incomingmsn)-1); - } else if (!strcasecmp(v->name, "dtmfmode")) { - char tmp[80]; - char *alt; - strncpy(tmp, v->value, sizeof(tmp) - 1); - alt = strchr(tmp, '/'); - if (!strcasecmp(tmp, "none")) - dtmfmode=MODEM_DTMF_NONE; - else if (!strcasecmp(tmp, "asterisk")) - dtmfmode = MODEM_DTMF_AST; - else if (!strcasecmp(tmp, "i4l")) - dtmfmode = MODEM_DTMF_I4L; - else { - ast_log(LOG_WARNING, "Unknown dtmf detection mode '%s', using 'asterisk'\n", v->value); - dtmfmode = MODEM_DTMF_AST; - } - if (alt) { - if (!strcasecmp(alt, "none")) - dtmfmodegen=MODEM_DTMF_NONE; - else if (!strcasecmp(alt, "asterisk")) - dtmfmodegen = MODEM_DTMF_AST; - else if (!strcasecmp(alt, "i4l")) - dtmfmodegen = MODEM_DTMF_I4L; - else if (!strcasecmp(alt, "both")) - dtmfmodegen = MODEM_DTMF_I4L | MODEM_DTMF_AST; - else { - ast_log(LOG_WARNING, "Unknown dtmf generation mode '%s', using 'asterisk'\n", v->value); - dtmfmodegen = MODEM_DTMF_AST; - } - } else - dtmfmodegen = dtmfmode; - } else if (!strcasecmp(v->name, "outgoingmsn")) { - strncpy(outgoingmsn, v->value, sizeof(outgoingmsn)-1); - } else if (!strcasecmp(v->name, "language")) { - strncpy(language, v->value, sizeof(language)-1); - } else if (!strcasecmp(v->name, "group")) { - cur_group = get_group(v->value); - } - v = v->next; - } - ast_mutex_unlock(&iflock); - if (ast_channel_register(&modem_tech)) { - ast_log(LOG_ERROR, "Unable to register channel class %s\n", type); - ast_config_destroy(cfg); - __unload_module(); - return -1; - } - ast_config_destroy(cfg); - /* And start the monitor for the first time */ - restart_monitor(); - return 0; -} - -int usecount(void) -{ - return usecnt; -} - -char *description() -{ - return (char *) desc; -} - -char *key() -{ - return ASTERISK_GPL_KEY; -} - diff --git a/channels/chan_modem_aopen.c b/channels/chan_modem_aopen.c deleted file mode 100644 index f49fe6568c..0000000000 --- a/channels/chan_modem_aopen.c +++ /dev/null @@ -1,502 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer - * - * 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. - */ - -/* - * \brief A/Open ITU-56/2 Voice Modem Driver (Rockwell, IS-101, and others) - * - * \author Mark Spencer - * - * \ingroup channel_drivers - */ - -#include - -#include -#include -#include - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include "asterisk/lock.h" -#include "asterisk/vmodem.h" -#include "asterisk/module.h" -#include "asterisk/frame.h" -#include "asterisk/logger.h" -#include "asterisk/options.h" - -#define STATE_COMMAND 0 -#define STATE_VOICE 1 - -#define VRA "40" /* Number of 100ms of non-ring after a ring cadence after which we consider the lien to be answered */ -#define VRN "100" /* Number of 100ms of non-ring with no cadence after which we assume an answer */ - -static char *breakcmd = "\0x10\0x03"; - -static char *desc = "A/Open (Rockwell Chipset) ITU-2 VoiceModem Driver"; - -static int usecnt; -AST_MUTEX_DEFINE_STATIC(usecnt_lock); - -static char *aopen_idents[] = { - /* Identify A/Open Modem */ - "V2.210-V90_2M_DLP", - NULL -}; - -static int aopen_setdev(struct ast_modem_pvt *p, int dev) -{ - char cmd[80]; - if (ast_modem_send(p, "AT#VLS?", 0)) { - ast_log(LOG_WARNING, "Unable to select current mode %d\n", dev); - return -1; - } - if (ast_modem_read_response(p, 5)) { - ast_log(LOG_WARNING, "Unable to select device %d\n", dev); - return -1; - } - ast_modem_trim(p->response); - strncpy(cmd, p->response, sizeof(cmd)-1); - if (ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Modem did not respond properly\n"); - return -1; - } - if (dev == atoi(cmd)) { - /* We're already in the right mode, don't bother changing for fear of - hanging up */ - return 0; - } - snprintf(cmd, sizeof(cmd), "AT#VLS=%d", dev); - if (ast_modem_send(p, cmd, 0)) { - ast_log(LOG_WARNING, "Unable to select device %d\n", dev); - return -1; - } - if (ast_modem_read_response(p, 5)) { - ast_log(LOG_WARNING, "Unable to select device %d\n", dev); - return -1; - } - ast_modem_trim(p->response); - if (strcasecmp(p->response, "VCON") && strcasecmp(p->response, "OK")) { - ast_log(LOG_WARNING, "Unexpected reply: %s\n", p->response); - return -1; - } - return 0; -} - -static int aopen_startrec(struct ast_modem_pvt *p) -{ - if (ast_modem_send(p, "AT#VRX", 0) || - ast_modem_expect(p, "CONNECT", 5)) { - ast_log(LOG_WARNING, "Unable to start recording\n"); - return -1; - } - p->ministate = STATE_VOICE; - return 0; -} - -static int aopen_break(struct ast_modem_pvt *p) -{ - if (ast_modem_send(p, "\r\n", 2)) { - ast_log(LOG_WARNING, "Failed to send enter?\n"); - return -1; - } - if (ast_modem_send(p, breakcmd, 2)) { - ast_log(LOG_WARNING, "Failed to break\n"); - return -1; - } - if (ast_modem_send(p, "\r\n", 2)) { - ast_log(LOG_WARNING, "Failed to send enter?\n"); - return -1; - } - /* Read any outstanding junk */ - while(!ast_modem_read_response(p, 1)); - if (ast_modem_send(p, "AT", 0)) { - /* Modem might be stuck in some weird mode, try to get it out */ - ast_modem_send(p, "+++", 3); - if (ast_modem_expect(p, "OK", 10)) { - ast_log(LOG_WARNING, "Modem is not responding\n"); - return -1; - } - if (ast_modem_send(p, "AT", 0)) { - ast_log(LOG_WARNING, "Modem is not responding\n"); - return -1; - } - } - if (ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Modem did not respond properly\n"); - return -1; - } - return 0; -} - -static int aopen_init(struct ast_modem_pvt *p) -{ - if (option_debug) - ast_log(LOG_DEBUG, "aopen_init()\n"); - if (aopen_break(p)) - return -1; - /* Force into command mode */ - p->ministate = STATE_COMMAND; - if (ast_modem_send(p, "AT#BDR=0", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to auto-baud\n"); - return -1; - } - if (ast_modem_send(p, "AT#CLS=8", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to voice mode\n"); - return -1; - } - if (ast_modem_send(p, "AT#VBS=8", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to 8-bit mode\n"); - return -1; - } - if (ast_modem_send(p, "AT#VSR=8000", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to 8000 Hz sampling\n"); - return -1; - } - if (ast_modem_send(p, "AT#VLS=0", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to telco interface\n"); - return -1; - } - if (ast_modem_send(p, "AT#VRA=" VRA, 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to 'ringback goes away' timer\n"); - return -1; - } - if (ast_modem_send(p, "AT#VRN=" VRN, 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to 'ringback never came timer'\n"); - return -1; - } - if (ast_modem_send(p, "AT#VTD=3F,3F,3F", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to tone detection\n"); - return -1; - } - - return 0; -} - -static struct ast_frame *aopen_handle_escape(struct ast_modem_pvt *p, char esc) -{ - /* Handle escaped characters -- but sometimes we call it directly as - a quick way to cause known responses */ - p->fr.frametype = AST_FRAME_NULL; - p->fr.subclass = 0; - p->fr.data = NULL; - p->fr.datalen = 0; - p->fr.samples = 0; - p->fr.offset = 0; - p->fr.mallocd = 0; - p->fr.delivery.tv_sec = 0; - p->fr.delivery.tv_usec = 0; - if (esc) - ast_log(LOG_DEBUG, "Escaped character '%c'\n", esc); - - switch(esc) { - case 'R': /* Pseudo ring */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_RING; - return &p->fr; - case 'X': /* Pseudo connect */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_RING; - if (p->owner) - ast_setstate(p->owner, AST_STATE_UP); - if (aopen_startrec(p)) - return NULL; - return &p->fr; - case 'b': /* Busy signal */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_BUSY; - return &p->fr; - case 'o': /* Overrun */ - ast_log(LOG_WARNING, "Overflow on modem, flushing buffers\n"); - if (ast_modem_send(p, "\0x10E", 2)) - ast_log(LOG_WARNING, "Unable to flush buffers\n"); - return &p->fr; - case 'u': /* Underrun */ - ast_log(LOG_WARNING, "Data underrun\n"); - /* Fall Through */ - case CHAR_ETX: /* End Transmission */ - case 'd': /* Dialtone */ - case 'c': /* Calling Tone */ - case 'e': /* European version */ - case 'a': /* Answer Tone */ - case 'f': /* Bell Answer Tone */ - case 'T': /* Timing mark */ - case 't': /* Handset off hook */ - case 'h': /* Handset hungup */ - case 0: /* Pseudo signal */ - /* Ignore */ - return &p->fr; - default: - ast_log(LOG_DEBUG, "Unknown Escaped character '%c' (%d)\n", esc, esc); - } - return &p->fr; -} - -static struct ast_frame *aopen_read(struct ast_modem_pvt *p) -{ - char result[256]; - short *b; - struct ast_frame *f=NULL; - int res; - int x; - if (p->ministate == STATE_COMMAND) { - /* Read the first two bytes, first, in case it's a control message */ - fread(result, 1, 2, p->f); - if (result[0] == CHAR_DLE) { - return aopen_handle_escape(p, result[1]); - - } else { - if ((result[0] == '\n') || (result[0] == '\r')) - return aopen_handle_escape(p, 0); - /* Read the rest of the line */ - fgets(result + 2, sizeof(result) - 2, p->f); - ast_modem_trim(result); - if (!strcasecmp(result, "VCON")) { - /* If we're in immediate mode, reply now */ - if (p->mode == MODEM_MODE_IMMEDIATE) - return aopen_handle_escape(p, 'X'); - } else - if (!strcasecmp(result, "BUSY")) { - /* Same as a busy signal */ - return aopen_handle_escape(p, 'b'); - } else - if (!strcasecmp(result, "RING")) { - return aopen_handle_escape(p, 'R'); - } else - if (!strcasecmp(result, "NO DIALTONE")) { - /* There's no dialtone, so the line isn't working */ - ast_log(LOG_WARNING, "Device '%s' lacking dialtone\n", p->dev); - return NULL; - } - ast_log(LOG_DEBUG, "Modem said '%s'\n", result); - return aopen_handle_escape(p, 0); - } - } else { - /* We have to be more efficient in voice mode */ - b = (short *)(p->obuf + p->obuflen); - while (p->obuflen/2 < 240) { - /* Read ahead the full amount */ - res = fread(result, 1, 240 - p->obuflen/2, p->f); - if (res < 1) { - /* If there's nothing there, just continue on */ - if (errno == EAGAIN) - return aopen_handle_escape(p, 0); - ast_log(LOG_WARNING, "Read failed: %s\n", strerror(errno)); - } - for (x=0;xobuflen += 2; - } - } - if (f) - break; - } - /* If we have a control frame, return it now */ - if (f) - return f; - /* If we get here, we have a complete voice frame */ - p->fr.frametype = AST_FRAME_VOICE; - p->fr.subclass = AST_FORMAT_SLINEAR; - p->fr.samples = 240; - p->fr.data = p->obuf; - p->fr.datalen = p->obuflen; - p->fr.mallocd = 0; - p->fr.delivery.tv_sec = 0; - p->fr.delivery.tv_usec = 0; - p->fr.offset = AST_FRIENDLY_OFFSET; - p->fr.src = __FUNCTION__; - if (option_debug) - ast_log(LOG_DEBUG, "aopen_read(voice frame)\n"); - p->obuflen = 0; - return &p->fr; - } - return NULL; -} - -static int aopen_write(struct ast_modem_pvt *p, struct ast_frame *f) -{ - if (option_debug) - ast_log(LOG_DEBUG, "aopen_write()\n"); - return 0; -} - -static char *aopen_identify(struct ast_modem_pvt *p) -{ - char identity[256]; - char mfr[80]; - char mdl[80]; - char rev[80]; - ast_modem_send(p, "AT#MDL?", 0); - ast_modem_read_response(p, 5); - strncpy(mdl, p->response, sizeof(mdl)-1); - ast_modem_trim(mdl); - ast_modem_expect(p, "OK", 5); - ast_modem_send(p, "AT#MFR?", 0); - ast_modem_read_response(p, 5); - strncpy(mfr, p->response, sizeof(mfr)-1); - ast_modem_trim(mfr); - ast_modem_expect(p, "OK", 5); - ast_modem_send(p, "AT#REV?", 0); - ast_modem_read_response(p, 5); - strncpy(rev, p->response, sizeof(rev)-1); - ast_modem_trim(rev); - ast_modem_expect(p, "OK", 5); - snprintf(identity, sizeof(identity), "%s Model %s Revision %s", mfr, mdl, rev); - return strdup(identity); -} - -static void aopen_incusecnt(void) -{ - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); -} - -static void aopen_decusecnt(void) -{ - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); -} - -static int aopen_answer(struct ast_modem_pvt *p) -{ - if (ast_modem_send(p, "ATA", 0) || - ast_modem_expect(p, "VCON", 10)) { - ast_log(LOG_WARNING, "Unable to answer: %s", p->response); - return -1; - } - return 0; -} - -static int aopen_dialdigit(struct ast_modem_pvt *p, char digit) -{ - char cmd[80]; - snprintf(cmd, sizeof(cmd), "AT#VTS=%c", digit); - if (ast_modem_send(p, cmd, 0) || - ast_modem_expect(p, "VCON", 10)) { - ast_log(LOG_WARNING, "Unable to answer: %s", p->response); - return -1; - } - return 0; -} - -static int aopen_dial(struct ast_modem_pvt *p, char *stuff) -{ - char cmd[80]; - snprintf(cmd, sizeof(cmd), "ATD%c %s", p->dialtype,stuff); - if (ast_modem_send(p, cmd, 0)) { - ast_log(LOG_WARNING, "Unable to dial\n"); - return -1; - } - return 0; -} - -static int aopen_hangup(struct ast_modem_pvt *p) -{ - if (aopen_break(p)) - return -1; - /* Hangup by switching to data, then back to voice */ - if (ast_modem_send(p, "ATH", 0) || - ast_modem_expect(p, "OK", 8)) { - ast_log(LOG_WARNING, "Unable to set to data mode\n"); - return -1; - } - if (ast_modem_send(p, "AT#CLS=8", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to voice mode\n"); - return -1; - } - return 0; -} - -static struct ast_modem_driver aopen_driver = -{ - "AOpen", - aopen_idents, - AST_FORMAT_SLINEAR, - 0, /* Not full duplex */ - aopen_incusecnt, /* incusecnt */ - aopen_decusecnt, /* decusecnt */ - aopen_identify, /* identify */ - aopen_init, /* init */ - aopen_setdev, /* setdev */ - aopen_read, - aopen_write, - aopen_dial, /* dial */ - aopen_answer, /* answer */ - aopen_hangup, /* hangup */ - aopen_startrec, /* start record */ - NULL, /* stop record */ - NULL, /* start playback */ - NULL, /* stop playback */ - NULL, /* set silence supression */ - aopen_dialdigit, /* dialdigit */ -}; - - - -int usecount(void) -{ - return usecnt; -} - -int load_module(void) -{ - return ast_register_modem_driver(&aopen_driver); -} - -int unload_module(void) -{ - return ast_unregister_modem_driver(&aopen_driver); -} - -char *description() -{ - return desc; -} - -char *key() -{ - return ASTERISK_GPL_KEY; -} diff --git a/channels/chan_modem_bestdata.c b/channels/chan_modem_bestdata.c deleted file mode 100644 index a643635f13..0000000000 --- a/channels/chan_modem_bestdata.c +++ /dev/null @@ -1,615 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999, Mark Spencer and 2001 Jim Dixon - * - * Mark Spencer - * Jim Dixon - * - * 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. - */ - -/* - * \brief BestData 56SX-92 Voice Modem Driver (Conexant) - * - * \author Mark Spencer - * \author Jim Dixon - * - * \ingroup channel_drivers - */ - -#include - -#include -#include -#include -#include - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include "asterisk/lock.h" -#include "asterisk/vmodem.h" -#include "asterisk/module.h" -#include "asterisk/frame.h" -#include "asterisk/logger.h" -#include "asterisk/options.h" - -#define STATE_COMMAND 0 -#define STATE_VOICE 1 -#define STATE_VOICEPLAY 2 - -#define VRA "40" /* Number of 100ms of non-ring after a ring cadence after which we consider the lien to be answered */ -#define VRN "25" /* Number of 100ms of non-ring with no cadence after which we assume an answer */ - -#define RINGT 7000 - -static char *breakcmd = "\020!"; - -static char *desc = "BestData (Conexant V.90 Chipset) VoiceModem Driver"; - -static int usecnt; -AST_MUTEX_DEFINE_STATIC(usecnt_lock); - -static char *bestdata_idents[] = { - /* Identify BestData Modem */ - "ACF3_V1.010-V90_P21_FSH", - NULL -}; - -static int bestdata_break(struct ast_modem_pvt *p); - -static int bestdata_startrec(struct ast_modem_pvt *p) -{ - if (p->ministate != STATE_COMMAND) bestdata_break(p); - if (ast_modem_send(p, "AT+VRX", 0) || - ast_modem_expect(p, "CONNECT", 5)) { - ast_log(LOG_WARNING, "Unable to start recording\n"); - return -1; - } - p->ministate = STATE_VOICE; - return 0; -} - -static int bestdata_startplay(struct ast_modem_pvt *p) -{ - if (p->ministate != STATE_COMMAND) bestdata_break(p); - if (ast_modem_send(p, "AT+VTX", 0) || - ast_modem_expect(p, "CONNECT", 5)) { - ast_log(LOG_WARNING, "Unable to start recording\n"); - return -1; - } - p->ministate = STATE_VOICEPLAY; - return 0; -} - -static int bestdata_break(struct ast_modem_pvt *p) -{ - if (ast_modem_send(p, breakcmd, 2)) { - ast_log(LOG_WARNING, "Failed to break\n"); - return -1; - } - p->ministate = STATE_COMMAND; - usleep(10000); - /* Read any outstanding junk */ - while(!ast_modem_read_response(p, 1)); - if (ast_modem_send(p, "AT", 0)) { - /* Modem might be stuck in some weird mode, try to get it out */ - ast_modem_send(p, "+++", 3); - if (ast_modem_expect(p, "OK", 10)) { - ast_log(LOG_WARNING, "Modem is not responding\n"); - return -1; - } - if (ast_modem_send(p, "AT", 0)) { - ast_log(LOG_WARNING, "Modem is not responding\n"); - return -1; - } - } - if (ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Modem did not respond properly\n"); - return -1; - } - return 0; -} - -static int bestdata_init(struct ast_modem_pvt *p) -{ - if (option_debug) - ast_log(LOG_DEBUG, "bestdata_init()\n"); - if (bestdata_break(p)) - return -1; - /* Force into command mode */ - p->ministate = STATE_COMMAND; - if (ast_modem_send(p, "AT+FCLASS=8", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to voice mode\n"); - return -1; - } - if (ast_modem_send(p, "AT+VSM=1,8000,0,0", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to 8000 Hz sampling\n"); - return -1; - } - if (ast_modem_send(p, "AT+VLS=0", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to telco interface\n"); - return -1; - } - if (ast_modem_send(p, "AT+VRA=" VRA, 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to 'ringback goes away' timer\n"); - return -1; - } - if (ast_modem_send(p, "AT+VRN=" VRN, 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to 'ringback never came timer'\n"); - return -1; - } - if (ast_modem_send(p, "AT+VTD=63", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to tone detection\n"); - return -1; - } - if (ast_modem_send(p, "AT+VCID=1", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to enable Caller*ID\n"); - return -1; - } - return 0; -} - -static struct ast_frame *bestdata_handle_escape(struct ast_modem_pvt *p, char esc) -{ - char name[30]="",nmbr[30]=""; - time_t now; - - /* Handle escaped characters -- but sometimes we call it directly as - a quick way to cause known responses */ - p->fr.frametype = AST_FRAME_NULL; - p->fr.subclass = 0; - p->fr.data = NULL; - p->fr.datalen = 0; - p->fr.samples = 0; - p->fr.offset = 0; - p->fr.mallocd = 0; - p->fr.delivery.tv_sec = 0; - p->fr.delivery.tv_usec = 0; - if (esc) - ast_log(LOG_DEBUG, "Escaped character '%c'\n", esc); - - switch(esc) { - case 'R': /* Pseudo ring */ - time(&now); - if (now > (p->lastring + (RINGT / 1000))) - { /* if stale, treat as new */ - p->gotclid = 0; - } - if (p->gotclid) - { - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_RING; - } - p->ringt = RINGT; - time(&p->lastring); - return &p->fr; - case 'X': /* Caller-ID Spill */ - if (p->gotclid) return &p->fr; - name[0] = nmbr[0] = 0; - for(;;) - { - char res[1000]=""; - - if (ast_modem_read_response(p, 5)) break; - strncpy(res, p->response, sizeof(res)-1); - ast_modem_trim(res); - if (!strncmp(res,"\020.",2)) break; - if (!strncmp(res,"NAME",4)) strncpy(name,res + 7, sizeof(name) - 1); - if (!strncmp(res,"NMBR",4)) strncpy(nmbr,res + 7, sizeof(nmbr) - 1); - } - p->gotclid = 1; - if ((!strcmp(name,"O")) || (!strcmp(name,"P"))) name[0] = 0; - if ((!strcmp(nmbr,"O")) || (!strcmp(nmbr,"P"))) nmbr[0] = 0; - if (name[0]) - strncpy(p->cid_name, name, sizeof(p->cid_name) - 1); - if (nmbr[0]) - strncpy(p->cid_num, nmbr, sizeof(p->cid_num) - 1); - if (p->owner) { - p->owner->cid.cid_num = strdup(p->cid_num); - p->owner->cid.cid_name = strdup(p->cid_name); - } - return &p->fr; - case '@': /* response from "OK" in command mode */ - if (p->owner) - ast_setstate(p->owner, AST_STATE_UP); - if (bestdata_startrec(p)) return NULL; - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_RING; - return &p->fr; - case 'b': /* Busy signal */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_BUSY; - return &p->fr; - case 'o': /* Overrun */ - ast_log(LOG_WARNING, "Overflow on modem, flushing buffers\n"); - if (ast_modem_send(p, "\0x10E", 2)) - ast_log(LOG_WARNING, "Unable to flush buffers\n"); - return &p->fr; - case '0': /* All the DTMF characters */ - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - case '*': - case '#': - case 'A': - case 'B': - case 'C': - case 'D': - p->dtmfrx = esc; /* save this for when its done */ - return &p->fr; - case '/': /* Start of DTMF tone shielding */ - p->dtmfrx = ' '; - return &p->fr; - case '~': /* DTMF transition to off */ - if (p->dtmfrx > ' ') - { - p->fr.frametype = AST_FRAME_DTMF; - p->fr.subclass = p->dtmfrx; - } - p->dtmfrx = 0; - return &p->fr; - case 'u': /* Underrun */ - ast_log(LOG_WARNING, "Data underrun\n"); - /* Fall Through */ - case CHAR_ETX: /* End Transmission */ - case 'd': /* Dialtone */ - case 'c': /* Calling Tone */ - case 'e': /* European version */ - case 'a': /* Answer Tone */ - case 'f': /* Bell Answer Tone */ - case 'T': /* Timing mark */ - case 't': /* Handset off hook */ - case 'h': /* Handset hungup */ - case 0: /* Pseudo signal */ - /* Ignore */ - return &p->fr; - default: - ast_log(LOG_DEBUG, "Unknown Escaped character '%c' (%d)\n", esc, esc); - } - return &p->fr; -} - -static struct ast_frame *bestdata_read(struct ast_modem_pvt *p) -{ - char result[256]; - short *b; - struct ast_frame *f=NULL; - int res; - int x; - - if (p->ministate == STATE_COMMAND) { - /* Read the first two bytes, first, in case it's a control message */ - fread(result, 1, 2, p->f); - if (result[0] == CHAR_DLE) { - return bestdata_handle_escape(p, result[1]); - } else { - if (p->ringt) /* if ring timeout specified */ - { - x = fileno(p->f); - res = ast_waitfor_n_fd(&x, 1, &p->ringt, NULL); - if (res < 0) { - return NULL; - } - } - if ((result[0] == '\n') || (result[0] == '\r')) - return bestdata_handle_escape(p, 0); - /* Read the rest of the line */ - fgets(result + 2, sizeof(result) - 2, p->f); - ast_modem_trim(result); - if (!strcasecmp(result, "OK")) { - /* If we're in immediate mode, reply now */ - if (p->mode == MODEM_MODE_IMMEDIATE) - return bestdata_handle_escape(p, '@'); - } else - if (!strcasecmp(result, "BUSY")) { - /* Same as a busy signal */ - return bestdata_handle_escape(p, 'b'); - } else - if (!strcasecmp(result, "RING")) { - return bestdata_handle_escape(p, 'R'); - } else - if (!strcasecmp(result, "NO DIALTONE")) { - /* There's no dialtone, so the line isn't working */ - ast_log(LOG_WARNING, "Device '%s' lacking dialtone\n", p->dev); - return NULL; - } - ast_log(LOG_DEBUG, "Modem said '%s'\n", result); - return bestdata_handle_escape(p, 0); - } - } else { - /* if playing, start recording instead */ - if (p->ministate == STATE_VOICEPLAY) - { - if (bestdata_startrec(p)) return NULL; - } - /* We have to be more efficient in voice mode */ - b = (short *)(p->obuf + p->obuflen); - while (p->obuflen/2 < 240) { - /* Read ahead the full amount */ - res = fread(result, 1, 240 - p->obuflen/2, p->f); - if (res < 1) { - /* If there's nothing there, just continue on */ - if (errno == EAGAIN) - return bestdata_handle_escape(p, 0); - ast_log(LOG_WARNING, "Read failed: %s\n", strerror(errno)); - } - for (x=0;xdtmfrx) continue; - return(f); - } - } - /* Generate a 16-bit signed linear value from our - unsigned 8-bit value */ - *(b++) = (((short)result[x]) - 127) * 0xff; - p->obuflen += 2; - } - if (f) break; - } - /* If we have a control frame, return it now */ - if (f) return f; - /* If we get here, we have a complete voice frame */ - p->fr.frametype = AST_FRAME_VOICE; - p->fr.subclass = AST_FORMAT_SLINEAR; - p->fr.samples = 240; - p->fr.data = p->obuf; - p->fr.datalen = p->obuflen; - p->fr.mallocd = 0; - p->fr.delivery.tv_sec = 0; - p->fr.delivery.tv_usec = 0; - p->fr.offset = AST_FRIENDLY_OFFSET; - p->fr.src = __FUNCTION__; - if (option_debug) - ast_log(LOG_DEBUG, "bestdata_read(voice frame)\n"); - p->obuflen = 0; - return &p->fr; - } - return NULL; -} - -static int bestdata_write(struct ast_modem_pvt *p, struct ast_frame *f) -{ -unsigned char c,buf[32768]; /* I hope we dont have frames larger then 16K */ -int i,j; -short *sp; -unsigned long u; -#define DLE 16 - - if (p->owner && (p->owner->_state == AST_STATE_UP) && - (p->ministate != STATE_VOICEPLAY) && bestdata_startplay(p)) return -1; - sp = (short *) f->data; - /* stick DLE's in ahead of anything else */ - for(i = 0,j = 0; i < f->datalen / 2; i++) - { - *sp *= 3; - u = *sp++ + 32768; - c = u >> 8; - if (c == DLE) buf[j++] = DLE; - buf[j++] = c; - } - do i = fwrite(buf,1,j,p->f); - while ((i == -1) && (errno == EWOULDBLOCK)); - if (i != j) - { - ast_log(LOG_WARNING,"modem short write!!\n"); - return -1; - } - fflush(p->f); - if (option_debug) - ast_log(LOG_DEBUG, "bestdata_write()\n"); - return 0; -} - -static char *bestdata_identify(struct ast_modem_pvt *p) -{ - char identity[256]; - char mfr[80]; - char mdl[80]; - char rev[80]; - ast_modem_send(p, "AT+FMM", 0); - ast_modem_read_response(p, 5); - strncpy(mdl, p->response, sizeof(mdl)-1); - ast_modem_trim(mdl); - ast_modem_expect(p, "OK", 5); - ast_modem_send(p, "AT+FMI", 0); - ast_modem_read_response(p, 5); - strncpy(mfr, p->response, sizeof(mfr)-1); - ast_modem_trim(mfr); - ast_modem_expect(p, "OK", 5); - ast_modem_send(p, "AT+FMR", 0); - ast_modem_read_response(p, 5); - strncpy(rev, p->response, sizeof(rev)-1); - ast_modem_trim(rev); - ast_modem_expect(p, "OK", 5); - snprintf(identity, sizeof(identity), "%s Model %s Revision %s", mfr, mdl, rev); - return strdup(identity); -} - -static void bestdata_incusecnt(void) -{ - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); -} - -static void bestdata_decusecnt(void) -{ - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); -} - -static int bestdata_answer(struct ast_modem_pvt *p) -{ - p->ringt = 0; - p->lastring = 0; - if (ast_modem_send(p, "AT+VLS=1", 0) || - ast_modem_expect(p, "OK", 10)) { - ast_log(LOG_WARNING, "Unable to answer: %s", p->response); - return -1; - } - return 0; -} - -static int bestdata_dialdigit(struct ast_modem_pvt *p, char digit) -{ - char cmd[80]; - - if (p->ministate != STATE_COMMAND) bestdata_break(p); - snprintf(cmd, sizeof(cmd), "AT+VTS=%c", digit); - if (ast_modem_send(p, cmd, 0) || - ast_modem_expect(p, "OK", 10)) { - ast_log(LOG_WARNING, "Unable to answer: %s", p->response); - return -1; - } - return 0; -} - -static int bestdata_dial(struct ast_modem_pvt *p, char *stuff) -{ - char cmd[800] = "",a[20]=""; - int i,j; - - if (p->ministate != STATE_COMMAND) - { - bestdata_break(p); - strncpy(cmd, "AT+VTS=", sizeof(cmd) - 1); - j = strlen(cmd); - for(i = 0; stuff[i]; i++) - { - switch(stuff[i]) - { - case '!' : - a[0] = stuff[i]; - a[1] = 0; - break; - case ',': - strncpy(a, "[,,100]", sizeof(a) - 1); - break; - default: - snprintf(a, sizeof(a), "{%c,7}", stuff[i]); - } - if (stuff[i + 1]) strncat(a, ",", sizeof(a) - strlen(a) - 1); - strncpy(cmd + j, a, sizeof(cmd) - j - 1); - j += strlen(a); - } - } - else - { - snprintf(cmd, sizeof(cmd), "ATD%c %s", p->dialtype,stuff); - } - if (ast_modem_send(p, cmd, 0)) { - ast_log(LOG_WARNING, "Unable to dial\n"); - return -1; - } - return 0; -} - -static int bestdata_hangup(struct ast_modem_pvt *p) -{ - if (bestdata_break(p)) - return -1; - /* Hangup by switching to data, then back to voice */ - if (ast_modem_send(p, "ATH", 0) || - ast_modem_expect(p, "OK", 8)) { - ast_log(LOG_WARNING, "Unable to set to data mode\n"); - return -1; - } - if (ast_modem_send(p, "AT+FCLASS=8", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to voice mode\n"); - return -1; - } - p->gotclid = 0; - p->ringt = 0; - p->lastring = 0; - p->dtmfrx = 0; - return 0; -} - -static struct ast_modem_driver bestdata_driver = -{ - "BestData", - bestdata_idents, - AST_FORMAT_SLINEAR, - 0, /* Not full duplex */ - bestdata_incusecnt, /* incusecnt */ - bestdata_decusecnt, /* decusecnt */ - bestdata_identify, /* identify */ - bestdata_init, /* init */ - NULL, /* setdev */ - bestdata_read, - bestdata_write, - bestdata_dial, /* dial */ - bestdata_answer, /* answer */ - bestdata_hangup, /* hangup */ - bestdata_startrec, /* start record */ - NULL, /* stop record */ - bestdata_startplay, /* start playback */ - NULL, /* stop playback */ - NULL, /* set silence supression */ - bestdata_dialdigit, /* dialdigit */ -}; - - - -int usecount(void) -{ - return usecnt; -} - -int load_module(void) -{ - return ast_register_modem_driver(&bestdata_driver); -} - -int unload_module(void) -{ - return ast_unregister_modem_driver(&bestdata_driver); -} - -char *description() -{ - return desc; -} - -char *key() -{ - return ASTERISK_GPL_KEY; -} diff --git a/channels/chan_modem_i4l.c b/channels/chan_modem_i4l.c deleted file mode 100644 index 36a2bd8027..0000000000 --- a/channels/chan_modem_i4l.c +++ /dev/null @@ -1,745 +0,0 @@ -/* - * Asterisk -- An open source telephony toolkit. - * - * Copyright (C) 1999 - 2005, Digium, Inc. - * - * Mark Spencer - * - * 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 ISDN4Linux TTY Driver - * - * \author Mark Spencer - * - * \ingroup channel_drivers - */ - -#include - -#include -#include -#include -#include -#include - -#include "asterisk.h" - -ASTERISK_FILE_VERSION(__FILE__, "$Revision$") - -#include "asterisk/lock.h" -#include "asterisk/vmodem.h" -#include "asterisk/module.h" -#include "asterisk/frame.h" -#include "asterisk/logger.h" -#include "asterisk/options.h" -#include "asterisk/dsp.h" -#include "asterisk/callerid.h" -#include "asterisk/ulaw.h" -#include "asterisk/pbx.h" -#include "asterisk/utils.h" - -#define STATE_COMMAND 0 -#define STATE_VOICE 1 - -static char *breakcmd = "\0x10\0x14\0x10\0x3"; - -static char *desc = "ISDN4Linux Emulated Modem Driver"; - -static int usecnt; -AST_MUTEX_DEFINE_STATIC(usecnt_lock); - -static char *i4l_idents[] = { - /* Identify ISDN4Linux Driver */ - "Linux ISDN", - NULL -}; - -static int i4l_setdev(struct ast_modem_pvt *p, int dev) -{ - char cmd[80]; - if ((dev != MODEM_DEV_TELCO) && (dev != MODEM_DEV_TELCO_SPK)) { - ast_log(LOG_WARNING, "ISDN4Linux only supports telco device, not %d.\n", dev); - return -1; - } else /* Convert DEV to our understanding of it */ - dev = 2; - if (ast_modem_send(p, "AT+VLS?", 0)) { - ast_log(LOG_WARNING, "Unable to select current mode %d\n", dev); - return -1; - } - if (ast_modem_read_response(p, 5)) { - ast_log(LOG_WARNING, "Unable to select device %d\n", dev); - return -1; - } - ast_modem_trim(p->response); - strncpy(cmd, p->response, sizeof(cmd)-1); - if (ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Modem did not respond properly\n"); - return -1; - } - if (dev == atoi(cmd)) { - /* We're already in the right mode, don't bother changing for fear of - hanging up */ - return 0; - } - snprintf(cmd, sizeof(cmd), "AT+VLS=%d", dev); - if (ast_modem_send(p, cmd, 0)) { - ast_log(LOG_WARNING, "Unable to select device %d\n", dev); - return -1; - } - if (ast_modem_read_response(p, 5)) { - ast_log(LOG_WARNING, "Unable to select device %d\n", dev); - return -1; - } - ast_modem_trim(p->response); - if (strcasecmp(p->response, "VCON") && strcasecmp(p->response, "OK")) { - ast_log(LOG_WARNING, "Unexpected reply: %s\n", p->response); - return -1; - } - return 0; -} - -static int i4l_startrec(struct ast_modem_pvt *p) -{ - if (ast_modem_send(p, "AT+VRX+VTX", 0) || - ast_modem_expect(p, "CONNECT", 5)) { - ast_log(LOG_WARNING, "Unable to start recording\n"); - return -1; - } - p->ministate = STATE_VOICE; - - /* let ast dsp detect dtmf */ - if (p->dtmfmode & MODEM_DTMF_AST) { - if (p->dsp) { - ast_log(LOG_DEBUG, "Already have a dsp on %s?\n", p->dev); - } else { - p->dsp = ast_dsp_new(); - if (p->dsp) { - ast_log(LOG_DEBUG, "Detecting DTMF inband with sw DSP on %s\n",p->dev); - ast_dsp_set_features(p->dsp, DSP_FEATURE_DTMF_DETECT|DSP_FEATURE_FAX_DETECT); - ast_dsp_digitmode(p->dsp, DSP_DIGITMODE_DTMF | 0); - } - } - } - - return 0; -} - -static int i4l_break(struct ast_modem_pvt *p) -{ - if (ast_modem_send(p, breakcmd, 2)) { - ast_log(LOG_WARNING, "Failed to break\n"); - return -1; - } - if (ast_modem_send(p, "\r\n", 2)) { - ast_log(LOG_WARNING, "Failed to send enter?\n"); - return -1; - } -#if 0 - /* Read any outstanding junk */ - while(!ast_modem_read_response(p, 1)); -#endif - if (ast_modem_send(p, "AT", 0)) { - /* Modem might be stuck in some weird mode, try to get it out */ - ast_modem_send(p, "+++", 3); - if (ast_modem_expect(p, "OK", 10)) { - ast_log(LOG_WARNING, "Modem is not responding\n"); - return -1; - } - if (ast_modem_send(p, "AT", 0)) { - ast_log(LOG_WARNING, "Modem is not responding\n"); - return -1; - } - } - if (ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Modem did not respond properly\n"); - return -1; - } - return 0; -} - -static int i4l_init(struct ast_modem_pvt *p) -{ - char cmd[256]; - if (option_debug) - ast_log(LOG_DEBUG, "i4l_init()\n"); - if (i4l_break(p)) - return -1; - /* Force into command mode */ - p->ministate = STATE_COMMAND; - if (ast_modem_send(p, "AT+FCLASS=8", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to voice mode\n"); - return -1; - } - if (!ast_strlen_zero(p->msn)) { - snprintf(cmd, sizeof(cmd), "AT&E%s", p->msn); - if (ast_modem_send(p, cmd, 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set MSN to %s\n", p->msn); - return -1; - } - } - if (!ast_strlen_zero(p->incomingmsn)) { - char *q; - snprintf(cmd, sizeof(cmd), "AT&L%s", p->incomingmsn); - /* translate , into ; since that is the seperator I4L uses, but can't be directly */ - /* put in the config file because it will interpret the rest of the line as comment. */ - q = cmd+4; - while (*q) { - if (*q == ',') *q = ';'; - ++q; - } - if (ast_modem_send(p, cmd, 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set Listen to %s\n", p->msn); - return -1; - } - } - if (ast_modem_send(p, "AT&D2", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to DTR disconnect mode\n"); - return -1; - } - if (ast_modem_send(p, "ATS18=1", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to audio only mode\n"); - return -1; - } - if (ast_modem_send(p, "ATS13.6=1", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to RUNG indication\n"); - return -1; - } - if (ast_modem_send(p, "ATS14=4", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to transparent mode\n"); - return -1; - } - if (ast_modem_send(p, "ATS23=9", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to transparent/ringing mode\n"); - return -1; - } - - if (ast_modem_send(p, "AT+VSM=6", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to muLAW mode\n"); - return -1; - } - if (ast_modem_send(p, "AT+VLS=2", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to phone line interface\n"); - return -1; - } - p->escape = 0; - return 0; -} - -static struct ast_frame *i4l_handle_escape(struct ast_modem_pvt *p, char esc) -{ - /* Handle escaped characters -- but sometimes we call it directly as - a quick way to cause known responses */ - p->fr.frametype = AST_FRAME_NULL; - p->fr.subclass = 0; - p->fr.data = NULL; - p->fr.datalen = 0; - p->fr.samples = 0; - p->fr.offset = 0; - p->fr.mallocd = 0; - p->fr.delivery.tv_sec = 0; - p->fr.delivery.tv_usec = 0; - if (esc && option_debug) - ast_log(LOG_DEBUG, "Escaped character '%c'\n", esc); - - switch(esc) { - case 'R': /* Pseudo ring */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_RING; - return &p->fr; - case 'I': /* Pseudo ringing */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_RINGING; - return &p->fr; - case 'X': /* Pseudo connect */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_ANSWER; - if (p->owner) - ast_setstate(p->owner, AST_STATE_UP); - if (i4l_startrec(p)) - return NULL; - return &p->fr; - case 'b': /* Busy signal */ - p->fr.frametype = AST_FRAME_CONTROL; - p->fr.subclass = AST_CONTROL_BUSY; - return &p->fr; - case 'o': /* Overrun */ - ast_log(LOG_WARNING, "Overflow on modem, flushing buffers\n"); - if (ast_modem_send(p, "\0x10E", 2)) - ast_log(LOG_WARNING, "Unable to flush buffers\n"); - return &p->fr; - case CHAR_ETX: /* End Transmission */ - return NULL; - case 'u': /* Underrun */ - ast_log(LOG_WARNING, "Data underrun\n"); - /* Fall Through */ - case 'd': /* Dialtone */ - case 'c': /* Calling Tone */ - case 'e': /* European version */ - case 'a': /* Answer Tone */ - case 'f': /* Bell Answer Tone */ - case 'T': /* Timing mark */ - case 't': /* Handset off hook */ - case 'h': /* Handset hungup */ - /* Ignore */ - if (option_debug) - ast_log(LOG_DEBUG, "Ignoring Escaped character '%c' (%d)\n", esc, esc); - return &p->fr; - case '0': - case '1': - case '2': - case '3': - case '4': - case '5': - case '6': - case '7': - case '8': - case '9': - case '*': - case '#': - ast_log(LOG_DEBUG, "Detected outband DTMF digit: '%c' (%d)\n", esc, esc); - p->fr.frametype=AST_FRAME_DTMF; - p->fr.subclass=esc; - return &p->fr; - case 0: /* Pseudo signal */ - return &p->fr; - default: - ast_log(LOG_DEBUG, "Unknown Escaped character '%c' (%d)\n", esc, esc); - } - return &p->fr; -} - -static struct ast_frame *i4l_read(struct ast_modem_pvt *p) -{ - unsigned char result[256]; - short *b; - struct ast_frame *f=NULL; - int res; - int x; - if (p->ministate == STATE_COMMAND) { - /* Read the first two bytes, first, in case it's a control message */ - res = read(p->fd, result, 2); - if (res < 2) { - /* short read, means there was a hangup? */ - /* (or is this also possible without hangup?) */ - /* Anyway, reading from unitialized buffers is a bad idea anytime. */ - if (errno == EAGAIN) - return i4l_handle_escape(p, 0); - return NULL; - } - if (result[0] == CHAR_DLE) { - return i4l_handle_escape(p, result[1]); - - } else { - if ((result[0] == '\n') || (result[0] == '\r')) - return i4l_handle_escape(p, 0); - /* Read the rest of the line */ - fgets(result + 2, sizeof(result) - 2, p->f); - ast_modem_trim(result); - if (!strcasecmp(result, "VCON")) { - /* If we're in immediate mode, reply now */ -/* if (p->mode == MODEM_MODE_IMMEDIATE) */ - return i4l_handle_escape(p, 'X'); - } else - if (!strcasecmp(result, "BUSY")) { - /* Same as a busy signal */ - return i4l_handle_escape(p, 'b'); - } else - if (!strncasecmp(result, "CALLER NUMBER: ", 15 )) { - strncpy(p->cid_num, result + 15, sizeof(p->cid_num)-1); - return i4l_handle_escape(p, 0); - } else - if (!strcasecmp(result, "RINGING")) { - if (option_verbose > 2) - ast_verbose(VERBOSE_PREFIX_3 "%s is ringing...\n", p->dev); - return i4l_handle_escape(p, 'I'); - } else - if (!strncasecmp(result, "RUNG", 4)) { - /* PM2002: the line was hung up before we picked it up, bye bye */ - if (option_verbose > 2) - ast_verbose(VERBOSE_PREFIX_3 "%s was hung up on before we answered\n", p->dev); - return NULL; - } else - if (!strncasecmp(result, "RING", 4)) { - if (result[4]=='/') - strncpy(p->dnid, result + 5, sizeof(p->dnid)-1); - return i4l_handle_escape(p, 'R'); - } else - if (!strcasecmp(result, "NO CARRIER")) { - if (option_verbose > 2) - ast_verbose(VERBOSE_PREFIX_3 "%s hung up on\n", p->dev); - return NULL; - } else - if (!strcasecmp(result, "NO DIALTONE")) { - /* There's no dialtone, so the line isn't working */ - ast_log(LOG_WARNING, "Device '%s' lacking dialtone\n", p->dev); - return NULL; - } - if (option_debug) - ast_log(LOG_DEBUG, "Modem said '%s'\n", result); - return i4l_handle_escape(p, 0); - } - } else { - /* We have to be more efficient in voice mode */ - b = (short *)(p->obuf + p->obuflen); - while (p->obuflen/2 < 240) { - /* Read ahead the full amount */ - res = read(p->fd, result, 240 - p->obuflen/2); - if (res < 1) { - /* If there's nothing there, just continue on */ - if (errno == EAGAIN) - return i4l_handle_escape(p, 0); - ast_log(LOG_WARNING, "Read failed: %s\n", strerror(errno)); - return NULL; - } - - for (x=0;xescape) { - /* Note that next value is - an escape, and continue. */ - p->escape++; - break; - } else { - /* Send as is -- fallthrough */ - p->escape = 0; - } - default: - if (p->escape) { - ast_log(LOG_DEBUG, "Value of escape is %c (%d)...\n", result[x] < 32 ? '^' : result[x], result[x]); - p->escape = 0; - if (f) - ast_log(LOG_WARNING, "Warning: Dropped a signal frame\n"); - f = i4l_handle_escape(p, result[x]); - /* If i4l_handle_escape says NULL, say it now, doesn't matter - what else is there, the connection is dead. */ - if (!f) - return NULL; - } else { - *(b++) = AST_MULAW((int)result[x]); - p->obuflen += 2; - } - } - } - if (f) - break; - } - if (f) { - if( ! (!(p->dtmfmode & MODEM_DTMF_I4L) && f->frametype == AST_FRAME_DTMF)) - return f; - } - - /* If we get here, we have a complete voice frame */ - p->fr.frametype = AST_FRAME_VOICE; - p->fr.subclass = AST_FORMAT_SLINEAR; - p->fr.samples = 240; - p->fr.data = p->obuf; - p->fr.datalen = p->obuflen; - p->fr.mallocd = 0; - p->fr.delivery.tv_sec = 0; - p->fr.delivery.tv_usec = 0; - p->fr.offset = AST_FRIENDLY_OFFSET; - p->fr.src = __FUNCTION__; - p->obuflen = 0; - - /* process with dsp */ - if (p->dsp) { - f = ast_dsp_process(p->owner, p->dsp, &p->fr); - if (f && (f->frametype == AST_FRAME_DTMF)) { - ast_log(LOG_DEBUG, "Detected inband DTMF digit: %c on %s\n", f->subclass, p->dev); - if (f->subclass == 'f') { - /* Fax tone -- Handle and return NULL */ - struct ast_channel *ast = p->owner; - if (!p->faxhandled) { - p->faxhandled++; - if (strcmp(ast->exten, "fax")) { - const char *target_context = ast_strlen_zero(ast->macrocontext) ? ast->context : ast->macrocontext; - - if (ast_exists_extension(ast, target_context, "fax", 1, ast->cid.cid_num)) { - if (option_verbose > 2) - ast_verbose(VERBOSE_PREFIX_3 "Redirecting %s to fax extension\n", ast->name); - /* Save the DID/DNIS when we transfer the fax call to a "fax" extension */ - pbx_builtin_setvar_helper(ast, "FAXEXTEN", ast->exten); - if (ast_async_goto(ast, target_context, "fax", 1)) - ast_log(LOG_WARNING, "Failed to async goto '%s' into fax of '%s'\n", ast->name, target_context); - } else - ast_log(LOG_NOTICE, "Fax detected, but no fax extension\n"); - } else - ast_log(LOG_DEBUG, "Already in a fax extension, not redirecting\n"); - } else - ast_log(LOG_DEBUG, "Fax already handled\n"); - p->fr.frametype = AST_FRAME_NULL; - p->fr.subclass = 0; - f = &p->fr; - } - return f; - } - } - - return &p->fr; - } - return NULL; -} - -static int i4l_write(struct ast_modem_pvt *p, struct ast_frame *f) -{ -#define MAX_WRITE_SIZE 2048 - unsigned char result[MAX_WRITE_SIZE << 1]; - unsigned char b; - int bpos=0, x; - int res; - if (f->datalen > MAX_WRITE_SIZE) { - ast_log(LOG_WARNING, "Discarding too big frame of size %d\n", f->datalen); - return -1; - } - if (f->frametype != AST_FRAME_VOICE) { - ast_log(LOG_WARNING, "Don't know how to handle %d type frames\n", f->frametype); - return -1; - } - if (f->subclass != AST_FORMAT_SLINEAR) { - ast_log(LOG_WARNING, "Don't know how to handle anything but signed linear frames\n"); - return -1; - } - for (x=0;xdatalen/2;x++) { - b = AST_LIN2MU(((short *)f->data)[x]); - result[bpos++] = b; - if (b == CHAR_DLE) - result[bpos++]=b; - } -#if 0 - res = fwrite(result, bpos, 1, p->f); - res *= bpos; -#else - res = write(p->fd, result, bpos); -#endif - if (res < 1) { - if (errno != EAGAIN) { - ast_log(LOG_WARNING, "Failed to write buffer\n"); - return -1; - } - } -#if 0 - printf("Result of write is %d\n", res); -#endif - return 0; -} - -static char *i4l_identify(struct ast_modem_pvt *p) -{ - return strdup("Linux ISDN"); -} - -static void i4l_incusecnt(void) -{ - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); -} - -static void i4l_decusecnt(void) -{ - ast_mutex_lock(&usecnt_lock); - usecnt++; - ast_mutex_unlock(&usecnt_lock); - ast_update_use_count(); -} - -static int i4l_answer(struct ast_modem_pvt *p) -{ - if (ast_modem_send(p, "ATA\r", 4) || - ast_modem_expect(p, "VCON", 10)) { - ast_log(LOG_WARNING, "Unable to answer: %s", p->response); - return -1; - } -#if 1 - if (ast_modem_send(p, "AT+VDD=0,8", 0) || - ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Unable to set to phone line interface\n"); - return -1; - } -#endif - if (ast_modem_send(p, "AT+VTX+VRX", 0) || - ast_modem_expect(p, "CONNECT", 10)) { - ast_log(LOG_WARNING, "Unable to answer: %s", p->response); - return -1; - } - p->ministate = STATE_VOICE; - - /* let ast dsp detect dtmf */ - if (p->dtmfmode & MODEM_DTMF_AST) { - if (p->dsp) { - ast_log(LOG_DEBUG, "Already have a dsp on %s?\n", p->dev); - } else { - p->dsp = ast_dsp_new(); - if (p->dsp) { - ast_log(LOG_DEBUG, "Detecting DTMF inband with sw DSP on %s\n",p->dev); - ast_dsp_set_features(p->dsp, DSP_FEATURE_DTMF_DETECT|DSP_FEATURE_FAX_DETECT); - ast_dsp_digitmode(p->dsp, DSP_DIGITMODE_DTMF | 0); - } - } - } - - return 0; -} - -static int i4l_dialdigit(struct ast_modem_pvt *p, char digit) -{ - char c[2]; - if (p->ministate == STATE_VOICE) { - if (p->dtmfmodegen & MODEM_DTMF_I4L) { - c[0] = CHAR_DLE; - c[1] = digit; - write(p->fd, c, 2); - ast_log(LOG_DEBUG, "Send ISDN out-of-band DTMF %c\n",digit); - } - if(p->dtmfmodegen & MODEM_DTMF_AST) { - ast_log(LOG_DEBUG, "Generating inband DTMF\n"); - return -1; - } - } else - ast_log(LOG_DEBUG, "Asked to send digit but call not up on %s\n", p->dev); - return 0; -} - -static int i4l_dial(struct ast_modem_pvt *p, char *stuff) -{ - char cmd[80]; - char tmpmsn[255]; - struct ast_channel *c = p->owner; - - /* Find callerid number first, to set the correct A number */ - if (c && c->cid.cid_num && !(c->cid.cid_pres & 0x20)) { - snprintf(tmpmsn, sizeof(tmpmsn), ",%s,", c->cid.cid_num); - if(!ast_strlen_zero(p->outgoingmsn) && strstr(p->outgoingmsn,tmpmsn) != NULL) { - /* Tell ISDN4Linux to use this as A number */ - snprintf(cmd, sizeof(cmd), "AT&E%s\n", c->cid.cid_num); - if (ast_modem_send(p, cmd, strlen(cmd))) { - ast_log(LOG_WARNING, "Unable to set A number to %s\n", c->cid.cid_num); - } - - } else { - ast_log(LOG_WARNING, "Outgoing MSN %s not allowed (see outgoingmsn=%s in modem.conf)\n",c->cid.cid_num,p->outgoingmsn); - } - } - - snprintf(cmd, sizeof(cmd), "ATD%c %s\n", p->dialtype,stuff); - if (ast_modem_send(p, cmd, strlen(cmd))) { - ast_log(LOG_WARNING, "Unable to dial\n"); - return -1; - } - return 0; -} - -static int i4l_hangup(struct ast_modem_pvt *p) -{ - char dummy[50]; - int dtr = TIOCM_DTR; - - /* free the memory used by the DSP */ - if (p->dsp) { - ast_dsp_free(p->dsp); - p->dsp = NULL; - } - - /* down DTR to hangup modem */ - ioctl(p->fd, TIOCMBIC, &dtr); - /* Read anything outstanding */ - while(read(p->fd, dummy, sizeof(dummy)) > 0); - - /* rise DTR to re-enable line */ - ioctl(p->fd, TIOCMBIS, &dtr); - - /* Read anything outstanding */ - while(read(p->fd, dummy, sizeof(dummy)) > 0); - - /* basically we're done, just to be sure */ - write(p->fd, "\n\n", 2); - read(p->fd, dummy, sizeof(dummy)); - if (ast_modem_send(p, "ATH", 0)) { - ast_log(LOG_WARNING, "Unable to hang up\n"); - return -1; - } - if (ast_modem_expect(p, "OK", 5)) { - ast_log(LOG_WARNING, "Final 'OK' not received\n"); - return -1; - } - - return 0; -} - -static struct ast_modem_driver i4l_driver = -{ - "i4l", - i4l_idents, - AST_FORMAT_SLINEAR, - 0, /* Not full duplex */ - i4l_incusecnt, /* incusecnt */ - i4l_decusecnt, /* decusecnt */ - i4l_identify, /* identify */ - i4l_init, /* init */ - i4l_setdev, /* setdev */ - i4l_read, - i4l_write, - i4l_dial, /* dial */ - i4l_answer, /* answer */ - i4l_hangup, /* hangup */ - i4l_startrec, /* start record */ - NULL, /* stop record */ - NULL, /* start playback */ - NULL, /* stop playback */ - NULL, /* set silence supression */ - i4l_dialdigit, /* dialdigit */ -}; - - - -int usecount(void) -{ - return usecnt; -} - -int load_module(void) -{ - return ast_register_modem_driver(&i4l_driver); -} - -int unload_module(void) -{ - return ast_unregister_modem_driver(&i4l_driver); -} - -char *description() -{ - return desc; -} - -char *key() -{ - return ASTERISK_GPL_KEY; -}