setchannel.c
/*-
* Copyright (c) 2003, 2004, 2005
* John Wehle <john@feith.com>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/* Set the channel of the tuner card. */
#include <sys/ioctl.h>
#include <sys/param.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <dev/bktr/ioctl_meteor.h>
#include <dev/bktr/ioctl_bt848.h>
static void
usage(void)
{
printf
("Usage: setchannel [-a {on|off}] [-c | -r | -s | -t] "
"[-g geom] [-m chnl_set] [chnl | freq]\n"
" -a Enable / disable AFC.\n"
" -c Select composite input.\n"
" -d Select tuner unit number.\n"
" -r Select radio input.\n"
" -s Select svideo input.\n"
" -t Select tuner.\n"
" -g Select geometry.\n"
" 352x240 or 352x288 = VCD\n"
" 480x480 or 480x576 = SVCD\n"
" 352x480 or 352x576 = DVD (half D1)\n"
" 720x480 or 720x576 = DVD (full D1)\n"
" -m Select channel set / system.\n"
" 0 = Tuner Default\n"
" %u = US Broadcast / NTSC\n"
" %u = US Cable / NTSC\n"
" %u = Western Europe / PAL\n"
" %u = Japan Broadcast / NTSC\n"
" %u = Japan Cable / NTSC\n"
" %u = Australia / PAL\n"
" %u = France / SECAM\n"
" chnl Channel\n"
" freq Frequency in MHz (must include decimal point).\n",
CHNLSET_NABCST, CHNLSET_CABLEIRC, CHNLSET_WEUROPE, CHNLSET_JPNBCST,
CHNLSET_JPNCABLE, CHNLSET_AUSTRALIA, CHNLSET_FRANCE);
}
#define DEVNAME_BASE "/dev/cxm"
char dev_name[16];
int
main(int argc, char *argv[])
{
char *ptr;
char *endptr;
int afc;
int audio;
int c;
int channel_set;
int i;
int status;
int unit;
int tfd;
unsigned int channel;
unsigned int fraction;
unsigned int freq;
unsigned int x_size;
unsigned int y_size;
unsigned long device;
struct bktr_capture_area cap;
afc = -1;
audio = -1;
channel = 0;
channel_set = -1;
device = 0;
freq = 0;
status = 0;
unit = 0;
x_size = 0;
y_size = 0;
while ((c = getopt(argc, argv, "a:cd:rg:m:st")) != -1)
switch (c) {
case 'a':
if (strcasecmp(optarg, "on") == 0)
afc = 1;
else if (strcasecmp(optarg, "off") == 0)
afc = 0;
else {
usage();
exit(1);
}
break;
case 'c':
device = METEOR_INPUT_DEV2;
audio = -1;
break;
case 'd':
unit = atoi(optarg);
break;
case 'r':
device = 0;
audio = AUDIO_INTERN;
break;
case 's':
device = METEOR_INPUT_DEV_SVIDEO;
audio = -1;
break;
case 't':
device = METEOR_INPUT_DEV1;
audio = -1;
break;
case 'g':
if (sscanf(optarg, "%ux%u", &x_size, &y_size) != 2
|| x_size == 0 || y_size == 0) {
usage();
exit(1);
}
break;
case 'm':
channel_set = atoi(optarg);
if (channel_set < 0 || channel_set > CHNLSET_MAX) {
usage();
exit(1);
}
break;
default:
usage();
exit(1);
}
if (optind < argc) {
/*
* A number containing a decimal point is the frequency in MHz.
*/
if ((ptr = strchr(argv[optind], '.')) != NULL) {
freq = strtol(argv[optind], &endptr, 10) * 1000;
if (ptr != endptr) {
usage();
exit(1);
}
ptr++;
fraction = strtol(ptr, &endptr, 10);
if (!isdigit(*ptr) || *endptr != '\0') {
usage();
exit(1);
}
for (i = endptr - ptr; i > 3; i--)
fraction /= 10;
for (; i < 3; i++)
fraction *= 10;
freq += fraction;
}
/* An integer is the channel. */
else
channel = atoi(argv[optind]);
}
if (afc == -1 && audio == -1 && !device && x_size == 0 && y_size == 0
&& channel_set == -1 && !channel && !freq) {
usage();
exit(1);
}
sprintf(dev_name, DEVNAME_BASE "%d", unit);
tfd = open(dev_name, O_RDONLY);
if (tfd < 0) {
fprintf(stderr, "Can't open %s: %s (%d)\n", dev_name,
strerror(errno), errno);
exit(1);
}
if (afc != -1)
if (ioctl(tfd, TVTUNER_SETAFC, &afc) < 0) {
perror("ioctl(tfd, TVTUNER_SETAFC) failed.");
status = 1;
}
if (device)
if (ioctl(tfd, METEORSINPUT, &device) < 0) {
perror("ioctl(tfd, METEORSINPUT) failed.");
status = 1;
}
if (audio != -1)
if (ioctl(tfd, BT848_SAUDIO, &audio) < 0) {
perror("ioctl(tfd, BT848_SAUDIO) failed.");
status = 1;
}
if (ioctl(tfd, BT848_GAUDIO, &audio) < 0) {
perror("ioctl(tfd, BT848_GAUDIO) failed.");
status = 1;
}
if (x_size && y_size) {
memset(&cap, 0, sizeof(cap));
cap.x_size = x_size;
cap.y_size = y_size;
if (ioctl(tfd, BT848_SCAPAREA, &cap) < 0) {
perror("ioctl(tfd, BT848_SCAPAREA) failed.");
status = 1;
}
}
if (channel_set != -1)
if (ioctl(tfd, TVTUNER_SETTYPE, &channel_set) < 0) {
perror("ioctl(tfd, TVTUNER_SETTYPE) failed.");
status = 1;
}
if (channel) {
if (ioctl(tfd, TVTUNER_SETCHNL, &channel) < 0) {
perror("ioctl(tfd, TVTUNER_SETCHNL) failed.");
status = 1;
}
} else if (freq) {
if (audio == AUDIO_INTERN) {
/* Convert from kHz to MHz * 100 */
freq = freq / 10;
if (ioctl(tfd, RADIO_SETFREQ, &freq) < 0) {
perror("ioctl(tfd, RADIO_SETFREQ) failed.");
status = 1;
}
} else {
/* Convert from kHz to MHz * 16 */
freq = (freq * 16) / 1000;
if (ioctl(tfd, TVTUNER_SETFREQ, &freq) < 0) {
perror("ioctl(tfd, TVTUNER_SETFREQ) failed.");
status = 1;
}
}
}
close(tfd);
exit(status);
}
