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