git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7221 65c4cc65-6c06-0410-ace0-fbb531ad65f3
172 lines
3.6 KiB
C
172 lines
3.6 KiB
C
/*
|
|
* 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 Digital Milliwatt Test
|
|
*
|
|
* \ingroup applications
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
|
|
#include "asterisk.h"
|
|
|
|
ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
|
|
|
|
#include "asterisk/lock.h"
|
|
#include "asterisk/file.h"
|
|
#include "asterisk/logger.h"
|
|
#include "asterisk/channel.h"
|
|
#include "asterisk/pbx.h"
|
|
#include "asterisk/module.h"
|
|
|
|
static char *tdesc = "Digital Milliwatt (mu-law) Test Application";
|
|
|
|
static char *app = "Milliwatt";
|
|
|
|
static char *synopsis = "Generate a Constant 1000Hz tone at 0dbm (mu-law)";
|
|
|
|
static char *descrip =
|
|
"Milliwatt(): Generate a Constant 1000Hz tone at 0dbm (mu-law)\n";
|
|
|
|
STANDARD_LOCAL_USER;
|
|
|
|
LOCAL_USER_DECL;
|
|
|
|
static char digital_milliwatt[] = {0x1e,0x0b,0x0b,0x1e,0x9e,0x8b,0x8b,0x9e} ;
|
|
|
|
static void *milliwatt_alloc(struct ast_channel *chan, void *params)
|
|
{
|
|
int *indexp;
|
|
indexp = malloc(sizeof(int));
|
|
if (indexp == NULL) return(NULL);
|
|
*indexp = 0;
|
|
return(indexp);
|
|
}
|
|
|
|
static void milliwatt_release(struct ast_channel *chan, void *data)
|
|
{
|
|
free(data);
|
|
return;
|
|
}
|
|
|
|
static int milliwatt_generate(struct ast_channel *chan, void *data, int len, int samples)
|
|
{
|
|
struct ast_frame wf;
|
|
unsigned char waste[AST_FRIENDLY_OFFSET];
|
|
unsigned char buf[640];
|
|
int i,*indexp = (int *) data;
|
|
|
|
if (len > sizeof(buf))
|
|
{
|
|
ast_log(LOG_WARNING,"Only doing %d bytes (%d bytes requested)\n",(int)sizeof(buf),len);
|
|
len = sizeof(buf);
|
|
}
|
|
waste[0] = 0; /* make compiler happy */
|
|
wf.frametype = AST_FRAME_VOICE;
|
|
wf.subclass = AST_FORMAT_ULAW;
|
|
wf.offset = AST_FRIENDLY_OFFSET;
|
|
wf.mallocd = 0;
|
|
wf.data = buf;
|
|
wf.datalen = len;
|
|
wf.samples = wf.datalen;
|
|
wf.src = "app_milliwatt";
|
|
wf.delivery.tv_sec = 0;
|
|
wf.delivery.tv_usec = 0;
|
|
/* create a buffer containing the digital milliwatt pattern */
|
|
for(i = 0; i < len; i++)
|
|
{
|
|
buf[i] = digital_milliwatt[(*indexp)++];
|
|
*indexp &= 7;
|
|
}
|
|
if (ast_write(chan,&wf) < 0)
|
|
{
|
|
ast_log(LOG_WARNING,"Failed to write frame to '%s': %s\n",chan->name,strerror(errno));
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct ast_generator milliwattgen =
|
|
{
|
|
alloc: milliwatt_alloc,
|
|
release: milliwatt_release,
|
|
generate: milliwatt_generate,
|
|
} ;
|
|
|
|
static int milliwatt_exec(struct ast_channel *chan, void *data)
|
|
{
|
|
|
|
struct localuser *u;
|
|
LOCAL_USER_ADD(u);
|
|
ast_set_write_format(chan, AST_FORMAT_ULAW);
|
|
ast_set_read_format(chan, AST_FORMAT_ULAW);
|
|
if (chan->_state != AST_STATE_UP)
|
|
{
|
|
ast_answer(chan);
|
|
}
|
|
if (ast_activate_generator(chan,&milliwattgen,"milliwatt") < 0)
|
|
{
|
|
ast_log(LOG_WARNING,"Failed to activate generator on '%s'\n",chan->name);
|
|
LOCAL_USER_REMOVE(u);
|
|
return -1;
|
|
}
|
|
while(!ast_safe_sleep(chan, 10000));
|
|
ast_deactivate_generator(chan);
|
|
LOCAL_USER_REMOVE(u);
|
|
return -1;
|
|
}
|
|
|
|
int unload_module(void)
|
|
{
|
|
int res;
|
|
|
|
res = ast_unregister_application(app);
|
|
|
|
STANDARD_HANGUP_LOCALUSERS;
|
|
|
|
return res;
|
|
}
|
|
|
|
int load_module(void)
|
|
{
|
|
return ast_register_application(app, milliwatt_exec, synopsis, descrip);
|
|
}
|
|
|
|
char *description(void)
|
|
{
|
|
return tdesc;
|
|
}
|
|
|
|
int usecount(void)
|
|
{
|
|
int res;
|
|
STANDARD_USECOUNT(res);
|
|
return res;
|
|
}
|
|
|
|
char *key()
|
|
{
|
|
return ASTERISK_GPL_KEY;
|
|
}
|