minix/sys/arch/arm/include/disklabel.h

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/* $NetBSD: disklabel.h,v 1.12 2013/05/27 07:37:20 msaitoh Exp $ */
2012-07-04 00:21:37 +02:00
/*
* Copyright (c) 1994 Mark Brinicombe.
* Copyright (c) 1994 Brini.
* All rights reserved.
*
* This code is derived from software written for Brini by Mark Brinicombe
*
* 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 Brini.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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.
*
* RiscBSD kernel project
*
* disklabel.h
*
* machine specific disk label info
*
* Created : 04/10/94
*/
#ifndef _ARM_DISKLABEL_H_
#define _ARM_DISKLABEL_H_
#ifndef LABELUSESMBR
#define LABELUSESMBR 1 /* use MBR partitionning */
#endif
#define LABELSECTOR 1 /* sector containing label */
#define LABELOFFSET 0 /* offset of label in sector */
#define MAXPARTITIONS 16 /* number of partitions */
#define OLDMAXPARTITIONS 8 /* old number of partitions */
#ifndef RAW_PART
#define RAW_PART 2 /* raw partition: XX?c */
#endif
/*
* We use the highest bit of the minor number for the partition number.
* This maintains backward compatibility with device nodes created before
* MAXPARTITIONS was increased.
*/
#define __ARM_MAXDISKS ((1 << 20) / MAXPARTITIONS)
#define DISKUNIT(dev) ((minor(dev) / OLDMAXPARTITIONS) % __ARM_MAXDISKS)
#define DISKPART(dev) ((minor(dev) % OLDMAXPARTITIONS) + \
((minor(dev) / (__ARM_MAXDISKS * OLDMAXPARTITIONS)) * OLDMAXPARTITIONS))
#define DISKMINOR(unit, part) \
(((unit) * OLDMAXPARTITIONS) + ((part) % OLDMAXPARTITIONS) + \
((part) / OLDMAXPARTITIONS) * (__ARM_MAXDISKS * OLDMAXPARTITIONS))
2012-07-04 00:21:37 +02:00
#if HAVE_NBTOOL_CONFIG_H
#include <nbinclude/sys/dkbad.h>
#include <nbinclude/sys/disklabel_acorn.h>
#include <nbinclude/sys/bootblock.h>
#else
#include <sys/dkbad.h>
#include <sys/disklabel_acorn.h>
#include <sys/bootblock.h>
#endif /* HAVE_NBTOOL_CONFIG_H */
struct cpu_disklabel {
struct mbr_partition mbrparts[MBR_PART_COUNT];
#define __HAVE_DISKLABEL_DKBAD
struct dkbad bad;
};
#ifdef _KERNEL
struct buf;
struct disklabel;
/* for readdisklabel. rv != 0 -> matches, msg == NULL -> success */
int mbr_label_read(dev_t, void (*)(struct buf *), struct disklabel *,
struct cpu_disklabel *, const char **, int *, int *);
/* for writedisklabel. rv == 0 -> dosen't match, rv > 0 -> success */
int mbr_label_locate(dev_t, void (*)(struct buf *),
struct disklabel *, struct cpu_disklabel *, int *, int *);
#endif /* _KERNEL */
#endif /* _ARM_DISKLABEL_H_ */