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/* $NetBSD: lambd.c,v 1.2 2001/07/18 06:47:37 itojun Exp $ */
/*
* Copyright (C) 2001 WIDE Project. 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. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``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 PROJECT OR CONTRIBUTORS 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.
*/
#include <sys/types.h>
#include <machine/sysarch.h>
#include <machine/pio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <err.h>
#include "lambio.h"
#define BASEPORT (0x378)
int main __P((int, char **));
void usage __P((void));
void mainloop __P((unsigned long));
void lsleep __P((unsigned long));
int monitor __P((void));
void led __P((int));
int foreground = 0;
int debug = 0;
#ifdef __i386__
int nohw = 0;
#else
const int nohw = 1;
#endif
int
main(argc, argv)
int argc;
char **argv;
{
int ch;
unsigned long delay;
char *p, *ep;
while ((ch = getopt(argc, argv, "dfn")) != -1) {
switch (ch) {
case 'd':
debug++;
break;
case 'f':
foreground++;
break;
case 'n':
nohw++;
break;
default:
usage();
exit(1);
}
}
if (!islamb()) {
if (debug)
fprintf(stderr, "it is not lamb\n");
nohw++;
} else
if (debug)
fprintf(stderr, "it is indeed lamb\n");
argc -= optind;
argv += optind;
switch (argc) {
case 0:
delay = 1 * 1000000;
break;
case 1:
p = *argv;
ep = NULL;
delay = strtoul(*argv, &ep, 10);
if (ep && !*ep)
break;
/* FALLTHROUGH */
default:
usage();
exit(1);
}
if (!nohw) {
if (lamb_open() < 0) {
err(1, "lamb_open");
/* NOTREACHED */
}
}
if (!foreground)
daemon(0, 0);
if (debug)
fprintf(stderr, "delay=%lu\n", delay);
mainloop(delay);
/* NOTREACHED */
exit(0); /* silent gcc */
}
void
usage()
{
fprintf(stderr, "usage: lambd [-f] [usec]\n");
}
void
mainloop(delay)
unsigned long delay;
{
delay /= 2;
led(0);
while (1) {
if (monitor())
break;
led(1);
lsleep(delay);
if (monitor())
break;
led(0);
lsleep(delay);
}
led(0);
if (debug) {
fprintf(stderr, "shutdown -h now\n");
exit(0);
} else {
execl("/sbin/shutdown", "shutdown", "-h", "now", NULL);
/* NOTREACHED */
}
}
void
lsleep(usec)
unsigned long usec;
{
sleep(usec / 1000000);
usleep(usec % 1000000);
}
int
monitor()
{
int i;
if (nohw)
return 0;
for (i = 0; i < 10; i++)
if (!lamb_reboot())
return 0;
return 1;
}
void
led(on)
int on;
{
if (debug)
fprintf(stderr, "led=%d\n", on);
if (nohw)
return;
lamb_led(on);
}
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