76 lines
3.1 KiB
C
76 lines
3.1 KiB
C
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/* $NetBSD: disklabel.h,v 1.16 2011/08/30 12:39:55 bouyer Exp $ */
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/*
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* Copyright (c) 1994 Christopher G. Demetriou
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _I386_DISKLABEL_H_
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#define _I386_DISKLABEL_H_
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#define LABELUSESMBR 1 /* use MBR partitionning */
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#define LABELSECTOR 1 /* sector containing label */
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#define LABELOFFSET 0 /* offset of label in sector */
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#define MAXPARTITIONS 16 /* number of partitions */
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#define OLDMAXPARTITIONS 8 /* number of partitions before 1.6 */
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#define RAW_PART 3 /* raw partition: XX?d (XXX) */
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/*
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* We use the highest bit of the minor number for the partition number.
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* This maintains backward compatibility with device nodes created before
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* MAXPARTITIONS was increased.
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*/
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#define __I386_MAXDISKS ((1 << 20) / MAXPARTITIONS)
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#define DISKUNIT(dev) ((minor(dev) / OLDMAXPARTITIONS) % __I386_MAXDISKS)
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#define DISKPART(dev) ((minor(dev) % OLDMAXPARTITIONS) + \
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((minor(dev) / (__I386_MAXDISKS * OLDMAXPARTITIONS)) * OLDMAXPARTITIONS))
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#define DISKMINOR(unit, part) \
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(((unit) * OLDMAXPARTITIONS) + ((part) % OLDMAXPARTITIONS) + \
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((part) / OLDMAXPARTITIONS) * (__I386_MAXDISKS * OLDMAXPARTITIONS))
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/* Pull in MBR partition definitions. */
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#if HAVE_NBTOOL_CONFIG_H
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#include <nbinclude/sys/bootblock.h>
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#else
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#include <sys/bootblock.h>
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#endif /* HAVE_NBTOOL_CONFIG_H */
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#ifndef __ASSEMBLER__
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#if HAVE_NBTOOL_CONFIG_H
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#include <nbinclude/sys/dkbad.h>
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#else
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#include <sys/dkbad.h>
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#endif /* HAVE_NBTOOL_CONFIG_H */
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struct cpu_disklabel {
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#define __HAVE_DISKLABEL_DKBAD
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struct dkbad bad;
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};
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#endif
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#endif /* _I386_DISKLABEL_H_ */
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