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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 1999 - 2005, Digium, Inc.
*
* Mark Spencer <markster@digium.com>
*
* 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 App to flash a DAHDI trunk
*
* \author Mark Spencer <markster@digium.com>
*
* \ingroup applications
*/
/*** MODULEINFO
<depend>dahdi</depend>
***/
#include "asterisk.h"
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/ioctl.h>
#include "asterisk/lock.h"
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/channel.h"
#include "asterisk/pbx.h"
#include "asterisk/module.h"
#include "asterisk/translate.h"
#include "asterisk/image.h"
#include "asterisk/options.h"
#include "asterisk/dahdi_compat.h"
static char *app = "Flash";
static char *dahdi_synopsis = "Flashes a DAHDI trunk";
static char *dahdi_descrip =
"Performs a flash on a DAHDI trunk. This can be used\n"
"to access features provided on an incoming analogue circuit\n"
"such as conference and call waiting. Use with SendDTMF() to\n"
"perform external transfers\n";
static char *zap_synopsis = "Flashes a Zap trunk";
static char *zap_descrip =
"Performs a flash on a Zap trunk. This can be used\n"
"to access features provided on an incoming analogue circuit\n"
"such as conference and call waiting. Use with SendDTMF() to\n"
"perform external transfers\n";
static inline int zt_wait_event(int fd)
{
/* Avoid the silly zt_waitevent which ignores a bunch of events */
int i,j=0;
i = DAHDI_IOMUX_SIGEVENT;
if (ioctl(fd, DAHDI_IOMUX, &i) == -1) return -1;
if (ioctl(fd, DAHDI_GETEVENT, &j) == -1) return -1;
return j;
}
static int flash_exec(struct ast_channel *chan, void *data)
{
int res = -1;
int x;
struct ast_module_user *u;
struct dahdi_params ztp;
u = ast_module_user_add(chan);
if (!strcasecmp(chan->tech->type, dahdi_chan_name)) {
memset(&ztp, 0, sizeof(ztp));
res = ioctl(chan->fds[0], DAHDI_GET_PARAMS, &ztp);
if (!res) {
if (ztp.sigtype & __DAHDI_SIG_FXS) {
x = DAHDI_FLASH;
res = ioctl(chan->fds[0], DAHDI_HOOK, &x);
if (!res || (errno == EINPROGRESS)) {
if (res) {
/* Wait for the event to finish */
zt_wait_event(chan->fds[0]);
}
res = ast_safe_sleep(chan, 1000);
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Flashed channel %s\n", chan->name);
} else
ast_log(LOG_WARNING, "Unable to flash channel %s: %s\n", chan->name, strerror(errno));
} else
ast_log(LOG_WARNING, "%s is not an FXO Channel\n", chan->name);
} else
ast_log(LOG_WARNING, "Unable to get parameters of %s: %s\n", chan->name, strerror(errno));
} else
ast_log(LOG_WARNING, "%s is not a DAHDI channel\n", chan->name);
ast_module_user_remove(u);
return res;
}
static int unload_module(void)
{
int res;
res = ast_unregister_application(app);
ast_module_user_hangup_all();
return res;
}
static int load_module(void)
{
if (dahdi_chan_mode == CHAN_ZAP_MODE) {
return ast_register_application(app, flash_exec, zap_synopsis, zap_descrip);
} else {
return ast_register_application(app, flash_exec, dahdi_synopsis, dahdi_descrip);
}
}
AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Flash channel application");
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