113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
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/*
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* Copyright (c) 1994 Hellmuth Michaelis
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by
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* Hellmuth Michaelis
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* 4. The name authors may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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static char *id =
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"@(#)set2061.c, 1.00, Last Edit-Date: [Sun Jan 15 19:52:05 1995]";
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/*---------------------------------------------------------------------------*
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*
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* history:
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*
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* -hm start using 132 columns on my Elsa Winner
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*
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*---------------------------------------------------------------------------*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <machine/pcvt_ioctl.h>
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#define DEFAULTFD 0
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void AltICD2061SetClock(long frequency, int select);
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main(argc,argv)
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int argc;
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char *argv[];
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{
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extern int optind;
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extern int opterr;
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extern char *optarg;
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int fd;
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int c;
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long freq = -1;
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int no = -1;
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while( (c = getopt(argc, argv, "f:n:")) != EOF)
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{
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switch(c)
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{
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case 'f':
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freq = atoi(optarg);
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break;
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case 'n':
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no = atoi(optarg);
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break;
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case '?':
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default:
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usage();
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break;
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}
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}
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if(freq == -1 || no == -1)
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usage();
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if((fd = open("/dev/console", O_RDONLY)) < 0)
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fd = DEFAULTFD;
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if(ioctl(fd, KDENABIO, 0) < 0)
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{
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perror("ioctl(KDENABIO)");
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return 1;
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}
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AltICD2061SetClock(freq, no);
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(void)ioctl(fd, KDDISABIO, 0);
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exit(0);
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}
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usage()
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{
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fprintf(stderr,"\nset2061 - program the ICD2061 video clock chip\n");
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fprintf(stderr,"usage: set2061 -f <freq> -n <no>\n");
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fprintf(stderr," -f <freq> frequency in Hz\n");
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fprintf(stderr," -n <no> clock generator number\n");
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exit(1);
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}
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