/*	$NetBSD: netboot.c,v 1.10 1995/10/04 07:24:32 thorpej Exp $	*/

/*-
 * Copyright (c) 1982, 1986, 1990, 1993
 *	The Regents of the University of California.  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 the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University 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 REGENTS 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 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.
 *
 *	@(#)boot.c	8.1 (Berkeley) 6/10/93
 */

#include <sys/param.h>
#include <sys/reboot.h>
#include <a.out.h>
#include "stand.h"
#include "samachdep.h"

/*
 * Boot program... bits in `howto' determine whether boot stops to
 * ask for system name.	 Boot device is derived from ROM provided
 * information.
 */

char line[100];

extern	u_int opendev;
extern	char *lowram;
extern	int noconsole;
extern	int cons_scode;

char *name;
char *names[] = {
	"bsd", "obsd", "bsd.old",
};
#define NUMNAMES	(sizeof(names)/sizeof(char *))

static int bdev, badapt, bctlr, bunit, bpart;

main()
{
	int currname = 0;

	/*
	 * XXX: different versions of the HP boot rom seem to report
	 * different things, so we have to compensate.
	 */
	bootdev = MAKEBOOTDEV(0, 0, 0, 0, 0);

	printf("\n>> NetBSD NETWORK BOOT HP9000/%s CPU\n",
	       getmachineid());
	printf(">> $NetBSD: netboot.c,v 1.10 1995/10/04 07:24:32 thorpej Exp $\n");
	printf(">> Enter \"reset\" to reset system.\n");

	bdev	= B_TYPE(bootdev);
	badapt	= B_ADAPTOR(bootdev);
	bctlr	= B_CONTROLLER(bootdev);
	bunit	= B_UNIT(bootdev);
	bpart	= B_PARTITION(bootdev);

	for (;;) {
		name = names[currname++];
		if (currname == NUMNAMES)
			currname = 0;

		if (!noconsole) {
			howto = 0;
			getbootname(&howto);
		} else
			printf(": %s\n", name);

		exec(name, lowram, howto);
		printf("boot: %s\n", strerror(errno));
	}
}

getbootname(howto)
	int *howto;
{
	char c, *ptr = line;

	printf("Boot: [%s][-s][-a][-d] :- ", name);

	if (tgets(line)) {
		if (strcmp(line, "reset") == 0) {
			call_req_reboot();	/* reset machine */
			printf("panic: can't reboot, halting\n");
			asm("stop #0x2700");
		}

		while (c = *ptr) {
			while (c == ' ')
				c = *++ptr;
			if (!c)
				return;
			if (c == '-')
				while ((c = *++ptr) && c != ' ')
					switch (c) {
					case 'a':
						*howto |= RB_ASKNAME;
						continue;
					case 's':
						*howto |= RB_SINGLE;
						continue;
					case 'd':
						*howto |= RB_KDB;
						continue;
					case 'b':
						*howto |= RB_HALT;
						continue;
					}
			else {
				name = ptr;
				while ((c = *++ptr) && c != ' ');
				if (c)
					*ptr++ = 0;
			}
		}
	} else
		printf("\n");
}

void
machdep_start(entry, howto, loadaddr, ssym, esym)
	char *entry;
	int howto;
	char *loadaddr;
	char *ssym, *esym;
{

	asm("movl %0,d7" : : "m" (howto));
	asm("movl #0,d6");	/* tell setroot we've netbooted */
	asm("movl %0,d5" : : "m" (cons_scode));
	asm("movl %0,a5" : : "a" (loadaddr));
	asm("movl %0,a4" : : "a" (esym));
	(*((int (*)())entry))();
}