xref: /src/sys/arch/i386/include/bootinfo.h

/*	$NetBSD: bootinfo.h,v 1.6 1999/03/10 01:28:25 fvdl Exp $	*/

/*
 * Copyright (c) 1997
 *	Matthias Drochner.  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 for the NetBSD Project
 *	by Matthias Drochner.
 * 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 AUTHOR 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.
 *
 */

#ifndef _LOCORE

struct btinfo_common {
	int len;
	int type;
};

#define BTINFO_BOOTPATH 0
#define BTINFO_BOOTDISK 3
#define BTINFO_NETIF 4
#define BTINFO_CONSOLE 6
#define BTINFO_BIOSGEOM 7
#define BTINFO_SYMTAB 8
#define BTINFO_MEMMAP 9

struct btinfo_bootpath {
	struct btinfo_common common;
	char bootpath[80];
};

struct btinfo_bootdisk {
	struct btinfo_common common;
	int labelsector; /* label valid if != -1 */
	struct {
		u_int16_t type, checksum;
		char packname[16];
	} label;
	int biosdev;
	int partition;
};

struct btinfo_netif {
	struct btinfo_common common;
	char ifname[16];
	int bus;
#define BI_BUS_ISA 0
#define BI_BUS_PCI 1
	union {
		unsigned int iobase; /* ISA */
		unsigned int tag; /* PCI, BIOS format */
	} addr;
};

struct btinfo_console {
	struct btinfo_common common;
	char devname[16];
	int addr;
	int speed;
};

struct btinfo_symtab {
	struct btinfo_common common;
	int nsym;
	int ssym;
	int esym;
};

struct bi_memmap_entry {
	int a[5]; /* 20 bytes */
};

struct btinfo_memmap {
	struct btinfo_common common;
	int num;
	struct bi_memmap_entry entry[1]; /* var len */
};

#include <sys/disklabel_mbr.h>

/*
 * Structure describing disk info as seen by the BIOS.
 */
struct bi_biosgeom_entry {
	int sec, head, cyl;			/* geometry */
	u_int64_t totsec;			/* LBA sectors from ext int13 */
	int flags, dev;				/* flags, BIOS device # */
#define BI_GEOM_INVALID		0x01
#define BI_GEOM_EXTINT13	0x02
	unsigned int cksum;			/* MBR checksum */
	int res0, res1, res2, res3;		/* future expansion; 0 now */
	struct mbr_partition dosparts[NMBRPART]; /* MBR itself */
};

struct btinfo_biosgeom {
	struct btinfo_common common;
	int num;
	struct bi_biosgeom_entry disk[1]; /* var len */
};

#define BI_NHD	16

/*
 * Structure containing a disk device name and possible matching BIOS
 * disks (indices in the bi_biosgeom_entry array)
 * XXX shouldn't really be here.
 */
struct bi_devmatch {
	char bd_devname[16];
	int bd_nmatches;
	int bd_matches[BI_NHD];
};

#ifdef _KERNEL
void *lookup_bootinfo __P((int));
#endif
#endif /* _LOCORE */

#ifdef _KERNEL
#define BOOTINFO_MAXSIZE 4096
#endif