/*	$NetBSD: boot.c,v 1.27 2014/08/08 19:45:48 joerg Exp $	*/

/*
 * Copyright (C) 1995, 1996 Wolfgang Solfrank.
 * Copyright (C) 1995, 1996 TooLs GmbH.
 * 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 TooLs GmbH.
 * 4. The name of TooLs GmbH may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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 <lib/libsa/stand.h>
#include <lib/libsa/loadfile.h>
#include <lib/libkern/libkern.h>
#include <sys/boot_flag.h>
#include <sys/reboot.h>
#include <machine/bootinfo.h>
#include <machine/cpu.h>

#include "boot.h"
#include "sdvar.h"
#include "wdvar.h"

char *names[] = {
	"/dev/disk/scsi/000/0_0:/netbsd",
	"/dev/disk/ide/0/master/0_0:/netbsd",
	"/dev/disk/floppy:netbsd",	"/dev/disk/floppy:netbsd.gz",
	"/dev/disk/scsi/000/0_0:/onetbsd",
	"/dev/disk/ide/0/master/0_0:/onetbsd",
	"/dev/disk/floppy:onetbsd",	"/dev/disk/floppy:onetbsd.gz"
	"in",
};
#define	NUMNAMES (sizeof (names) / sizeof (names[0]))

#define	NAMELEN	128
char namebuf[NAMELEN];
char nametmp[NAMELEN];

struct btinfo_memory btinfo_memory;
struct btinfo_console btinfo_console;
struct btinfo_clock btinfo_clock;
struct btinfo_rootdevice btinfo_rootdevice;

extern char bootprog_name[], bootprog_rev[];

void main(void);
void exec_kernel(char *, void *);

void
main(void)
{
	int n = 0;
	int addr, speed;
	char *name, *cnname;
	void *bootinfo;

	if (whichCPU() == 1)
		cpu1();
	resetCPU1();

	scanPCI();

	/*
	 * console init
	 */
	cnname = cninit(&addr, &speed);

	/*
	 * make bootinfo
	 */
	bootinfo = (void *)0x3030;

	/*
	 * memory
	 */
	btinfo_memory.common.next = sizeof (btinfo_memory);
	btinfo_memory.common.type = BTINFO_MEMORY;
	btinfo_memory.memsize = *(int *)0x3010;

	/*
	 * console
	 */
	btinfo_console.common.next = sizeof (btinfo_console);
	btinfo_console.common.type = BTINFO_CONSOLE;
	strcpy(btinfo_console.devname, cnname);
	btinfo_console.addr = addr;
	btinfo_console.speed = speed;

	/*
	 * clock
	 */
	btinfo_clock.common.next = 0;
	btinfo_clock.common.type = BTINFO_CLOCK;
	btinfo_clock.ticks_per_sec = TICKS_PER_SEC;

	runCPU1((void *)start_CPU1);
	wait_for(&CPU1_alive);

	printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
	printf(">> Memory: %d k\n", btinfo_memory.memsize / 1024);

	/*
	 * attached kernel check and copy.
	 */
	init_in();

	printf("\n");

	/* Initialize siop@pci0 dev 12 func 0 */
	siop_init(0, 12, 0);

	/* Initialize wdc@isa port 0x1f0 */
	wdc_init(0x1f0);

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

		exec_kernel(name, bootinfo);
	}
}

/*
 * Exec kernel
 */
void
exec_kernel(char *name, void *bootinfo)
{
	int howto = 0, i;
	char c, *ptr;
	u_long marks[MARK_MAX];
	void *p;
#ifdef DBMONITOR
	int go_monitor;

ret:
#endif /* DBMONITOR */
	printf("\nBoot: ");
	memset(namebuf, 0, sizeof (namebuf));
	(void)tgets(namebuf);

	ptr = namebuf;
#ifdef DBMONITOR
	go_monitor = 0;
	if (*ptr == '!') {
		if (*(++ptr) == NULL) {
			db_monitor();
			printf("\n");
			goto ret;
		} else {
			go_monitor++;
		}
	}
#endif /* DBMONITOR */
	while ((c = *ptr)) {
		while (c == ' ')
			c = *++ptr;
		if (!c)
			goto next;
		if (c == '-') {
			while ((c = *++ptr) && c != ' ')
				BOOT_FLAG(c, howto);
		} else {
			name = ptr;
			while ((c = *++ptr) && c != ' ');
			if (c)
				*ptr++ = 0;
		}
	}

next:
	printf("Loading %s\n", name);

	marks[MARK_START] = 0;
	if (loadfile(name, marks, LOAD_ALL) == 0) {
#ifdef DBMONITOR
		if (go_monitor) {
			db_monitor();
			printf("\n");
		}
#endif /* DBMONITOR */

		p = bootinfo;

		/*
		 * root device
		 */
		btinfo_rootdevice.common.next = sizeof (btinfo_rootdevice);
		btinfo_rootdevice.common.type = BTINFO_ROOTDEVICE;
		strncpy(btinfo_rootdevice.rootdevice, name,
		    sizeof (btinfo_rootdevice.rootdevice));
		i = 0;
		while (btinfo_rootdevice.rootdevice[i] != '\0') {
			if (btinfo_rootdevice.rootdevice[i] == ':')
				break;
			i++;
		}
		if (btinfo_rootdevice.rootdevice[i] == ':') {
			/* It is NOT in-kernel. */

			btinfo_rootdevice.rootdevice[i] = '\0';

			memcpy(p, (void *)&btinfo_rootdevice,
			    sizeof (btinfo_rootdevice));
			p += sizeof (btinfo_rootdevice);
		}

		memcpy(p, (void *)&btinfo_memory, sizeof (btinfo_memory));
		p += sizeof (btinfo_memory);
		memcpy(p, (void *)&btinfo_console, sizeof (btinfo_console));
		p += sizeof (btinfo_console);
		memcpy(p, (void *)&btinfo_clock, sizeof (btinfo_clock));

		printf("start=0x%lx\n\n", marks[MARK_ENTRY]);
		delay(1000);
		__syncicache((void *)marks[MARK_ENTRY],
			(u_int)marks[MARK_SYM] - (u_int)marks[MARK_ENTRY]);

		*(volatile u_long *)0x0080 = marks[MARK_ENTRY];
		run((void *)marks[MARK_SYM],
		    (void *)marks[MARK_END],
		    (void *)howto,
		    bootinfo,
		    (void *)marks[MARK_ENTRY]);
	}
}

void
_rtt(void)
{

	/* XXXX */
	__unreachable();
}