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/* $OpenBSD: disk.h,v 1.1 2005/05/24 20:38:20 uwe Exp $ */
/*
* Copyright (c) 1997 Tobias Weingartner
* 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.
*
* 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.
*
*/
#ifndef _DISKPROBE_H
#define _DISKPROBE_H
#include <sys/queue.h>
/* XXX snatched from <i386/biosdev.h> */
#if 1
/* Info about disk from the bios, plus the mapping from
* BIOS numbers to BSD major (driver?) number.
*
* Also, do not bother with BIOSN*() macros, just parcel
* the info out, and use it like this. This makes for less
* of a dependance on BIOSN*() macros having to be the same
* across /boot, /bsd, and userland.
*/
#define BOOTARG_DISKINFO 1
typedef struct _bios_diskinfo {
/* BIOS section */
int bios_number; /* BIOS number of drive (or -1) */
u_int bios_cylinders; /* BIOS cylinders */
u_int bios_heads; /* BIOS heads */
u_int bios_sectors; /* BIOS sectors */
int bios_edd; /* EDD support */
/* BSD section */
dev_t bsd_dev; /* BSD device */
/* Checksum section */
u_int32_t checksum; /* Checksum for drive */
/* Misc. flags */
u_int32_t flags;
#define BDI_INVALID 0x00000001 /* I/O error during checksumming */
#define BDI_GOODLABEL 0x00000002 /* Had SCSI or ST506/ESDI disklabel */
#define BDI_BADLABEL 0x00000004 /* Had another disklabel */
#define BDI_EL_TORITO 0x00000008 /* 2,048-byte sectors */
#define BDI_PICKED 0x80000000 /* kernel-only: cksum matched */
} bios_diskinfo_t;
#define BOOTARG_CKSUMLEN 3 /* u_int32_t */
#endif /* 1 */
/* All the info on a disk we've found */
struct diskinfo {
bios_diskinfo_t bios_info;
struct disklabel disklabel;
dev_t bsddev, bootdev;
TAILQ_ENTRY(diskinfo) list;
};
TAILQ_HEAD(disklist_lh, diskinfo);
/* diskprobe.c */
struct diskinfo *dkdevice(dev_t, dev_t);
void bios_devpath(int, int, char *);
char *bios_getdiskinfo(int, bios_diskinfo_t *);
int bios_getdospart(bios_diskinfo_t *);
char *bios_getdisklabel(bios_diskinfo_t *, struct disklabel *);
void dump_diskinfo(void);
#endif /* _DISKPROBE_H */
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