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/*
* Written by Mark Spencer <markster@digium.com>
* Based on previous works, designs, and architectures conceived and
* written by Jim Dixon <jim@lambdatel.com>.
*
* Copyright (C) 2001 Jim Dixon / Zapata Telephony.
* Copyright (C) 2001-2008 Digium, Inc.
*
* All rights reserved.
*
* Primary Author: Mark Spencer <markster@digium.com>
* Radio Support by Jim Dixon <jim@lambdatel.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 as published by the
* Free Software Foundation. See the LICENSE file included with
* this program for more details.
*/
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <linux/types.h>
#include <linux/ppp_defs.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include "bittest.h"
#include <dahdi/user.h>
#include "dahdi_tools_version.h"
/* #define BLOCK_SIZE 2048 */
#define BLOCK_SIZE 2041
#define DEVICE "/dev/dahdi/channel"
static const char rcsid[] = "$Id$";
char *prog_name;
static void usage(void)
{
fprintf(stderr, "Usage: %s <dahdi_chan>\n", prog_name);
fprintf(stderr, " e.g.: %s /dev/dahdi/55\n", prog_name);
fprintf(stderr, " %s 455\n", prog_name);
fprintf(stderr, "%s version %s\n", prog_name, rcsid);
exit(1);
}
void print_packet(unsigned char *buf, int len)
{
int x;
printf("{ ");
for (x=0;x<len;x++)
printf("%02x ",buf[x]);
printf("}\n");
}
int channel_open(const char *name, int *bs)
{
int channo, fd;
struct dahdi_params tp;
struct stat filestat;
/* stat file, if character device, open it */
channo = strtoul(name, NULL, 10);
fd = stat(name, &filestat);
if (!fd && S_ISCHR(filestat.st_mode)) {
fd = open(name, O_RDWR, 0600);
if (fd < 0) {
perror(name);
return -1;
}
/* try out the dahdi_specify interface */
} else if (channo > 0) {
fd = open(DEVICE, O_RDWR, 0600);
if (fd < 0) {
perror(DEVICE);
return -1;
}
if (ioctl(fd, DAHDI_SPECIFY, &channo) < 0) {
perror("DAHDI_SPECIFY ioctl failed");
return -1;
}
/* die */
} else {
fprintf(stderr, "Specified channel is not a valid character "
"device or channel number");
return -1;
}
if (ioctl(fd, DAHDI_SET_BLOCKSIZE, bs) < 0) {
perror("SET_BLOCKSIZE");
return -1;
}
if (ioctl(fd, DAHDI_GET_PARAMS, &tp)) {
fprintf(stderr, "Unable to get channel parameters\n");
return -1;
}
return fd;
}
int main(int argc, char *argv[])
{
int fd;
int res, res1, x;
int bs = BLOCK_SIZE;
unsigned char c=0;
unsigned char outbuf[BLOCK_SIZE];
prog_name = argv[0];
if (argc < 2) {
usage();
}
fd = channel_open(argv[1], &bs);
if (fd < 0)
exit(1);
ioctl(fd, DAHDI_GETEVENT);
#if 0
print_packet(outbuf, res);
printf("FCS is %x, PPP_GOODFCS is %x\n",
fcs,PPP_GOODFCS);
#endif
for(;;) {
res = bs;
for (x=0;x<bs;x++) {
outbuf[x] = c;
c = bit_next(c);
}
res1 = write(fd, outbuf, res);
if (res1 < res) {
int e;
struct dahdi_spaninfo zi;
res = ioctl(fd,DAHDI_GETEVENT,&e);
if (res == -1)
{
perror("DAHDI_GETEVENT");
exit(1);
}
if (e == DAHDI_EVENT_NOALARM)
printf("ALARMS CLEARED\n");
if (e == DAHDI_EVENT_ALARM)
{
zi.spanno = 0;
res = ioctl(fd,DAHDI_SPANSTAT,&zi);
if (res == -1)
{
perror("DAHDI_SPANSTAT");
exit(1);
}
printf("Alarm mask %x hex\n",zi.alarms);
}
continue;
}
#if 0
printf("(%d) Wrote %d bytes\n", packets++, res);
#endif
}
}
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