106 lines
4.1 KiB
C
106 lines
4.1 KiB
C
/* $NetBSD: disklabel.h,v 1.4 2005/12/11 12:23:56 christos Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* 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 the University of
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* California, Lawrence Berkeley Laboratory.
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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. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
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*/
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/*
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* SunOS disk label layout (only relevant portions discovered here).
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*/
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#define SUN_DKMAGIC 55998
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/* These are the guys that Sun's dkinfo needs... */
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#define DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */
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#define DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */
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#define DKIOCGPART _IOR('d', 4, struct sun_dkpart) /* partition info */
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/* geometry info */
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struct sun_dkgeom {
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u_short sdkc_ncylinders; /* data cylinders */
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u_short sdkc_acylinders; /* alternate cylinders */
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u_short sdkc_xxx1;
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u_short sdkc_ntracks; /* tracks per cylinder */
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u_short sdkc_xxx2;
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u_short sdkc_nsectors; /* sectors per track */
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u_short sdkc_interleave; /* interleave factor */
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u_short sdkc_xxx3;
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u_short sdkc_xxx4;
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u_short sdkc_sparespercyl; /* spare sectors per cylinder */
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u_short sdkc_rpm; /* rotational speed */
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u_short sdkc_pcylinders; /* physical cylinders */
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u_short sdkc_xxx5[7];
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};
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/* controller info */
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struct sun_dkctlr {
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int sdkc_addr; /* controller address */
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short sdkc_unit; /* unit (slave) address */
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short sdkc_type; /* controller type */
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short sdkc_flags; /* flags */
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};
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/* partition info */
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struct sun_dkpart {
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int sdkp_cyloffset; /* starting cylinder */
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int sdkp_nsectors; /* number of sectors */
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};
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struct sun_disklabel { /* total size = 512 bytes */
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char sl_text[128];
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char sl_xxx1[292];
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#define sl_bsdlabel sl_xxx1 /* Embedded NetBSD label */
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u_short sl_rpm; /* rotational speed */
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u_short sl_pcylinders; /* number of physical cyls */
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#define sl_pcyl sl_pcylinders /* XXX: old sun3 */
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u_short sl_sparespercyl; /* spare sectors per cylinder */
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char sl_xxx3[4];
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u_short sl_interleave; /* interleave factor */
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u_short sl_ncylinders; /* data cylinders */
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u_short sl_acylinders; /* alternate cylinders */
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u_short sl_ntracks; /* tracks per cylinder */
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u_short sl_nsectors; /* sectors per track */
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char sl_xxx4[4];
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struct sun_dkpart sl_part[8]; /* partition layout */
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u_short sl_magic; /* == SUN_DKMAGIC */
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u_short sl_cksum; /* xor checksum of all shorts */
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};
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#define SUN_LABELOFFSET 128 /* XXX we don't use this */
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