Date: Fri, 27 Jun 1997 15:22:14 -0400 (EDT) From: Kenneth Merry <ken@gt.ed.net> To: ken@gt.ed.net (Kenneth Merry) Cc: smp@csn.net, rhh@ct.picker.com, yjin@cs.ucla.edu, multimedia@FreeBSD.ORG Subject: Re: Fxtv Message-ID: <199706271922.PAA19130@housing1.stucen.gatech.edu> In-Reply-To: <199706180334.XAA25346@housing1.stucen.gatech.edu> from Kenneth Merry at "Jun 17, 97 11:34:56 pm"
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Kenneth Merry wrote...
> Steve Passe wrote...
> > >However, still HRC is not supported, but at this time even
> > >channel 2 doesn't show up. I change to IRC. Then I can change the
> > >channels, but only channel 5 and channel 6 can be received correctly.
> > >And It seems that I can receive the voice of other channels, but not
> > >video.
> >
> > There is no support for HRC, primarily because I didn't have a clue to what
> > frequencies it uses.
>
[ ... ]
> I created a table of channels and frequencies, and made a little
> command line tuner program based on freq.c that changed channels for me.
>
> The reason I'm being so vague here is that my computer is boxed up
> (I'm moving) and I won't be able to get to it for a couple of weeks. If
> y'all are still in the dark about HRC frequencies in a week or two, let me
> know and I'll forward out my frequency table. (and the slightly modified
> version of freq.c as well..)
Okay, here is my tuner program. The structure contains the
frequencies for the various HRC channels. So if there's anyone out there
on a HRC cable system, you might want to try this out and see if it works
for you.
Ken
--
Kenneth Merry
ken@gt.ed.net
#include <stdio.h>
#include <stdlib.h>
#include <sys/fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <machine/ioctl_meteor.h>
#include <machine/ioctl_bt848.h>
#define DEVICE "/dev/tuner0"
typedef struct {
float frequency;
int channel;
} chaninfo_t;
chaninfo_t chaninfo[] =
{
{ 73.25, 1 },
{ 55.25, 2 },
{ 61.25, 3 },
{ 67.25, 4 },
{ 77.25, 5 },
{ 83.25, 6 },
{ 175.25, 7 },
{ 181.25, 8 },
{ 187.25, 9 },
{ 193.25, 10 },
{ 199.25, 11 },
{ 205.25, 12 },
{ 211.25, 13 },
{ 121.25, 14 },
{ 127.25, 15 },
{ 133.25, 16 },
{ 139.25, 17 },
{ 145.25, 18 },
{ 151.25, 19 },
{ 157.25, 20 },
{ 163.25, 21 },
{ 169.25, 22 },
{ 217.25, 23 },
{ 223.25, 24 },
{ 229.25, 25 },
{ 235.25, 26 },
{ 241.25, 27 },
{ 247.25, 28 },
{ 253.25, 29 },
{ 259.25, 30 },
{ 265.25, 31 },
{ 271.25, 32 },
{ 277.25, 33 },
/* { 293.25, 34 }, */
{ 283.25, 34 },
{ 289.25, 35 },
{ 295.25, 36 },
{ 301.25, 37 },
{ 307.25, 38 },
{ 313.25, 39 },
{ 319.25, 40 },
{ 325.25, 41 },
{ 331.25, 42 },
{ 337.25, 43 },
{ 343.25, 44 },
{ 349.25, 45 },
{ 355.25, 46 },
{ 361.25, 47 },
{ 367.25, 48 },
{ 373.25, 49 },
{ 379.25, 50 },
{ 385.25, 51 },
{ 391.25, 52 },
{ 397.25, 53 },
{ 403.25, 54 },
{ 409.25, 55 },
{ 415.25, 56 },
{ 421.25, 57 },
{ 427.25, 58 },
{ 433.25, 59 },
{ 439.25, 60 },
{ 445.25, 61 },
{ 451.25, 62 },
{ 457.25, 63 },
{ 463.25, 64 },
{ 469.25, 65 },
{ 475.25, 66 },
{ 481.25, 67 },
{ 487.25, 68 },
{ 493.25, 69 },
{ 499.25, 70 },
{ 505.25, 71 },
{ 511.25, 72 },
{ 517.25, 73 },
{ 523.25, 74 },
{ 529.25, 75 },
{ 535.25, 76 },
{ 541.25, 77 },
{ 547.25, 78 },
{ 553.25, 79 },
{ 559.25, 80 },
{ 565.25, 81 },
{ 571.25, 82 },
{ 577.25, 83 },
{ 583.25, 84 },
{ 589.25, 85 },
{ 595.25, 86 },
{ 601.25, 87 },
{ 607.25, 88 },
{ 613.25, 89 },
{ 619.25, 90 },
{ 625.25, 91 },
{ 631.25, 92 },
{ 637.25, 93 },
{ 643.25, 94 },
{ 91.25, 95 },
{ 97.25, 96 },
{ 103.25, 97 },
{ 109.25, 98 },
{ 115.25, 99 },
{ 649.25, 100 },
{ 655.25, 101 },
{ 661.25, 102 },
{ 667.25, 103 },
{ 673.25, 104 },
{ 679.25, 105 },
{ 685.25, 106 },
{ 691.25, 107 },
{ 697.25, 108 },
{ 703.25, 109 },
{ 709.25, 110 },
{ 715.25, 111 },
{ 721.25, 112 },
{ 727.25, 113 },
{ 733.25, 114 },
{ 739.25, 115 },
{ 745.25, 116 },
{ 751.25, 117 },
{ 757.25, 118 },
{ 763.25, 119 },
{ 769.25, 120 },
{ 775.25, 121 },
{ 781.25, 122 },
{ 787.25, 123 },
{ 793.25, 124 },
{ 799.25, 125 }
};
void
byebye( int fd )
{
fprintf( stderr, "ioctl failed: %s\n", strerror(errno) );
close( fd );
exit( 1 );
}
main(int ac, char **av)
{
int x, ch;
char s[ 128 ];
int video;
int n = 0;
float foo;
float newfreq;
if ((video = open( DEVICE, O_RDONLY)) < 0)
byebye( video );
fprintf (stdout, "freq(%d)> ", n++);
while ( fgets( s, 128, stdin ) ) {
switch ( s[0] ) {
case 'b':
if (ioctl(video, BT848_CCBARS, &x) < 0)
byebye( video );
break;
case 'B':
if (ioctl(video, BT848_SCBARS, &x) < 0)
byebye( video );
break;
case 'f':
if (ioctl(video, TVTUNER_GETFREQ, &x) < 0)
byebye( video );
else {
foo = x / 16;
fprintf(stderr, "frequency: %f\n", foo);
}
if (ioctl(video, TVTUNER_GETSTATUS, &x) < 0)
byebye( video );
else
fprintf(stderr, "status: 0x%02x\n", x );
break;
case 'F':
x = strtol( &s[ 2 ], NULL, 10 );
newfreq = atof (&s[ 2 ]);
fprintf( stderr, "freq: %f\n", newfreq);
x = newfreq * 16;
if (ioctl(video, TVTUNER_SETFREQ, &x) < 0)
byebye( video );
sleep( 1 );
if (ioctl(video, TVTUNER_GETSTATUS, &x) < 0)
byebye( video );
else
fprintf(stderr, "status: 0x%02x\n", x );
break;
case 's':
x = 0;
if (ioctl(video, BT848_GSTATUS, &x) < 0)
byebye( video );
else
fprintf(stderr, "bt848 status: 0x%08x\n", x );
if (ioctl(video, TVTUNER_GETSTATUS, &x) < 0)
byebye( video );
else
fprintf(stderr, "tuner status: 0x%02x\n", x );
break;
case 't':
x = strtol( &s[ 2 ], NULL, 10 );
if (ioctl(video, TVTUNER_SETTYPE, &x) < 0)
byebye( video );
sleep( 1 );
if (ioctl(video, TVTUNER_GETSTATUS, &x) < 0)
byebye( video );
else
fprintf(stderr, "status: 0x%02x\n", x );
break;
case 'q':
close (video);
exit (0);
break;
default:
x = atoi( s );
if ((x < 2) || (x > 125)) {
fprintf (stderr, "channel %d out of range\n", x);
}
else {
/*
if (ioctl(video, TVTUNER_SETCHNL, &x) < 0)
byebye( video );
*/
newfreq = chaninfo[x - 1].frequency - 1.25;
x = newfreq * 16;
if (ioctl(video, TVTUNER_SETFREQ, &x) < 0)
byebye(video);
}
break;
}
fprintf (stdout, "freq(%d)> ", n++);
}
close(video);
exit(0);
}
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