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/* $OpenBSD: main.c,v 1.3 1999/01/13 07:26:07 niklas Exp $ */
/*
* Copyright (c) 1994 Hellmuth Michaelis
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by
* Hellmuth Michaelis
* 4. The name authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 THE AUTHORS 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.
*
*/
static char *id =
"@(#)set2061.c, 1.00, Last Edit-Date: [Sun Jan 15 19:52:05 1995]";
/*---------------------------------------------------------------------------*
*
* history:
*
* -hm start using 132 columns on my Elsa Winner
*
*---------------------------------------------------------------------------*/
#include <stdio.h>
#include <fcntl.h>
#include <machine/pcvt_ioctl.h>
#define DEFAULTFD 0
void AltICD2061SetClock(long frequency, int select);
main(argc,argv)
int argc;
char *argv[];
{
extern int optind;
extern int opterr;
extern char *optarg;
int fd;
int c;
long freq = -1;
int no = -1;
while( (c = getopt(argc, argv, "f:n:")) != -1)
{
switch(c)
{
case 'f':
freq = atoi(optarg);
break;
case 'n':
no = atoi(optarg);
break;
case '?':
default:
usage();
break;
}
}
if(freq == -1 || no == -1)
usage();
if((fd = open("/dev/console", O_RDONLY)) < 0)
fd = DEFAULTFD;
if(ioctl(fd, KDENABIO, 0) < 0)
{
perror("ioctl(KDENABIO)");
return 1;
}
AltICD2061SetClock(freq, no);
(void)ioctl(fd, KDDISABIO, 0);
exit(0);
}
usage()
{
fprintf(stderr,"\nset2061 - program the ICD2061 video clock chip\n");
fprintf(stderr,"usage: set2061 -f <freq> -n <no>\n");
fprintf(stderr," -f <freq> frequency in Hz\n");
fprintf(stderr," -n <no> clock generator number\n");
exit(1);
}
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