146 lines
2.8 KiB
C
146 lines
2.8 KiB
C
/*
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* Copyright (C) 1994 by Tatsumi Hosokawa <hosokawa@jp.FreeBSD.org>
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*
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* This software may be used, modified, copied, distributed, and sold,
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* in both source and binary form provided that the above copyright and
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* these terms are retained. Under no circumstances is the author
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* responsible for the proper functioning of this software, nor does
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* the author assume any responsibility for damages incurred with its
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* use.
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*
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* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*/
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#ifndef lint
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static const char rcsid[] =
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"$Id: apmconf.c,v 1.7 1997/09/02 06:37:48 charnier Exp $";
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#endif /* not lint */
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#include <err.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/file.h>
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#include <sys/ioctl.h>
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#include <machine/apm_bios.h>
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#define APMDEV "/dev/apm"
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static int enable = 0, disable = 0;
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static int haltcpu = 0, nothaltcpu = 0;
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static int main_argc;
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static char **main_argv;
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static void
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parse_option(void)
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{
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int i, option;
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enum {OPT_NONE, OPT_ENABLE, OPT_DISABLE, OPT_HALTCPU, OPT_NOTHALTCPU} mode;
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for (i = 1; i < main_argc; i++) {
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option = 0;
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mode = OPT_NONE;
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if (main_argv[i][0] == '-') {
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switch (main_argv[i][1]) {
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case 'e':
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mode = OPT_ENABLE;
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option = 0;
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break;
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case 'd':
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mode = OPT_DISABLE;
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option = 0;
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break;
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case 'h':
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mode = OPT_HALTCPU;
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option = 0;
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break;
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case 't':
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mode = OPT_NOTHALTCPU;
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option = 0;
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break;
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default:
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errx(1, "unknown option '%s'", main_argv[i]);
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}
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}
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if (option) {
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if (i == main_argc - 1)
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errx(1, "option '%s' needs arguments", main_argv[i]);
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optarg = main_argv[++i];
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}
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switch (mode) {
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case OPT_ENABLE:
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enable = 1;
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break;
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case OPT_DISABLE:
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disable = 1;
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break;
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case OPT_HALTCPU:
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haltcpu = 1;
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break;
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case OPT_NOTHALTCPU:
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nothaltcpu = 1;
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break;
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case OPT_NONE:
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break;
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}
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}
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}
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static void
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enable_apm(int dh)
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{
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if (ioctl(dh, APMIO_ENABLE, NULL) == -1)
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errx(1, "can't ioctl APMIO_ENABLE");
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}
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static void
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disable_apm(int dh)
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{
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if (ioctl(dh, APMIO_DISABLE, NULL) == -1)
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errx(1, "can't ioctl APMIO_DISABLE");
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}
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static void
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haltcpu_apm(int dh)
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{
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if (ioctl(dh, APMIO_HALTCPU, NULL) == -1)
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errx(1, "can't ioctl APMIO_HALTCPU");
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}
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static void
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nothaltcpu_apm(int dh)
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{
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if (ioctl(dh, APMIO_NOTHALTCPU, NULL) == -1)
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errx(1, "can't ioctl APMIO_NOTHALTCPU");
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}
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int
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main(int argc, char *argv[])
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{
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int dh;
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main_argc = argc;
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main_argv = argv;
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if ((dh = open(APMDEV, O_RDWR)) == -1)
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errx(1, "can't open '%s'", APMDEV);
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parse_option();
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/* disable operation is executed first */
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if (disable) {
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disable_apm(dh);
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}
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if (haltcpu) {
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haltcpu_apm(dh);
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}
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if (nothaltcpu) {
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nothaltcpu_apm(dh);
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}
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/* enable operation is executed last */
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if (enable) {
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enable_apm(dh);
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}
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return 0;
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}
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