Home | History | Annotate | Line # | Download | only in zboot 
      1 /*	$NetBSD: disk.h,v 1.1 2009/03/02 09:33:02 nonaka Exp $	*/
      2 /*	$OpenBSD: disk.h,v 1.1 2005/05/24 20:38:20 uwe Exp $	*/
      3 
      4 /*
      5  * Copyright (c) 1997 Tobias Weingartner
      6  * All rights reserved.
      7  *
      8  * Redistribution and use in source and binary forms, with or without
      9  * modification, are permitted provided that the following conditions
     10  * are met:
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  * 2. Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in the
     15  *    documentation and/or other materials provided with the distribution.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  *
     29  */
     30 
     31 #ifndef _STAND_DISK_H
     32 #define _STAND_DISK_H
     33 
     34 #include <sys/disklabel.h>
     35 #include <sys/queue.h>
     36 
     37 #define	MAXDEVNAME	16
     38 
     39 /* XXX snatched from <i386/biosdev.h> */
     40 #if 1
     41 /* Info about disk from the bios, plus the mapping from
     42  * BIOS numbers to BSD major (driver?) number.
     43  *
     44  * Also, do not bother with BIOSN*() macros, just parcel
     45  * the info out, and use it like this.  This makes for less
     46  * of a dependance on BIOSN*() macros having to be the same
     47  * across /boot, /bsd, and userland.
     48  */
     49 #define	BOOTARG_DISKINFO 1
     50 typedef struct _bios_diskinfo {
     51 	/* BIOS section */
     52 	int bios_number;	/* BIOS number of drive (or -1) */
     53 
     54 	/* Misc. flags */
     55 	uint32_t flags;
     56 #define BDI_INVALID	0x00000001	/* I/O error during checksumming */
     57 #define BDI_GOODLABEL	0x00000002	/* Had SCSI or ST506/ESDI disklabel */
     58 #define BDI_BADLABEL	0x00000004	/* Had another disklabel */
     59 #define BDI_EL_TORITO	0x00000008	/* 2,048-byte sectors */
     60 #define BDI_PICKED	0x80000000	/* kernel-only: cksum matched */
     61 } bios_diskinfo_t;
     62 
     63 #define	BOOTARG_CKSUMLEN 3		/* uint32_t */
     64 #endif /* 1 */
     65 
     66 /* All the info on a disk we've found */
     67 struct diskinfo {
     68 	bios_diskinfo_t bios_info;
     69 	struct disklabel disklabel;
     70 	char devname[MAXDEVNAME];
     71 
     72 	TAILQ_ENTRY(diskinfo) list;
     73 };
     74 TAILQ_HEAD(disklist_lh, diskinfo);
     75 
     76 /* diskprobe.c */
     77 void diskprobe(char *buf, size_t bufsiz);
     78 struct diskinfo *dkdevice(const char *, uint);
     79 int bios_devname(int, char *, int);
     80 void bios_devpath(int, int, char *);
     81 char *bios_getdiskinfo(int, bios_diskinfo_t *);
     82 int bios_getdospart(bios_diskinfo_t *);
     83 char *bios_getdisklabel(bios_diskinfo_t *, struct disklabel *);
     84 void dump_diskinfo(void);
     85 
     86 #endif /* _STAND_DISK_H */
     87