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/* $OpenBSD: boot.c,v 1.3 1997/03/31 23:06:20 mickey Exp $ */
/*
* Copyright (c) 1997 Michael Shalayeff
* 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 Michael Shalayeff.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 REGENTS 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/param.h>
#include <sys/reboot.h>
#include <sys/stat.h>
#include <libsa.h>
#include "cmd.h"
char *kernels[] = { "bsd", "bsd.gz",
"obsd", "obsd.gz",
"bsd.old", "bsd.old.gz",
NULL };
extern const char version[];
int boothowto;
u_int cnvmem, extmem;
void devboot __P((dev_t, char *));
void
boot(bootdev)
dev_t bootdev;
{
register char *bootfile = kernels[0];
register struct cmd_state *cmd;
register int i;
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4730;
#endif
gateA20(1);
#ifndef _TEST
memprobe();
#endif
#ifdef DEBUG
*(u_int16_t*)0xb8148 = 0x4f31;
#endif
cons_probe();
printf("\n>> OpenBSD BOOT: %u/%u k [%s]\n", cnvmem, extmem, version);
/* XXX init cmd here to cut on .data !!! */
cmd = (struct cmd_state *)alloc(sizeof(*cmd));
devboot(bootdev, cmd->bootdev);
cmd->image[0] = '\0';
cmd->cwd[0] = '/';
cmd->cwd[1] = '\0';
cmd->addr = (void *)0x100000;
cmd->timeout = 50;
for (i = 0;;) {
strncpy(cmd->image, bootfile, sizeof(cmd->image));
do {
printf("boot> ");
} while(!getcmd(cmd) && !execmd(cmd));
if (cmd->rc < 0)
break;
printf("\nbooting %s: ", cmd->path);
exec (cmd->path, cmd->addr, boothowto);
if(kernels[++i] == NULL)
bootfile = kernels[i=0];
else
bootfile = kernels[i];
cmd->timeout += 20;
printf(" failed(%d)\nwill try %s\n", errno, bootfile);
}
}
void
devboot(bootdev, p)
dev_t bootdev;
char *p;
{
#ifdef _TEST
*p++ = '/';
*p++ = 'd';
*p++ = 'e';
*p++ = 'v';
*p++ = '/';
*p++ = 'r';
#endif
if (bootdev & 0x80)
*p++ = 'h';
else
*p++ = 'f';
*p++ = 'd';
#ifndef _TEST
*p++ = '(';
#endif
*p++ = '0' + (bootdev & 0x7f);
#ifndef _TEST
*p++ = ',';
#endif
*p++ = 'a';
#ifndef _TEST
*p++ = ')';
#endif
*p = '\0';
}
#ifdef _TEST
int
main()
{
boot();
return 0;
}
#endif
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