/*      $NetBSD: disklabel.h,v 1.6 2015/09/26 03:31:52 christos Exp $ */

/*
* Copyright (c) 1992, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Lawrence Berkeley Laboratory.
*
* 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. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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.
*
*      @(#)sun_disklabel.h     8.1 (Berkeley) 6/11/93
*/

/*
* SunOS disk label layout (only relevant portions discovered here).
*/

#include <sys/ioccom.h>

#define SUN_DKMAGIC     55998

/* These are the guys that Sun's dkinfo needs... */
#define SUN_DKIOCGGEOM  _IOR('d', 2, struct sun_dkgeom) /* geometry info */
#define SUN_DKIOCINFO   _IOR('d', 8, struct sun_dkctlr) /* controller info */
#define SUN_DKIOCGPART  _IOR('d', 4, struct sun_dkpart) /* partition info */

/* geometry info */
struct sun_dkgeom {
       u_short sdkc_ncylinders;        /* data cylinders */
       u_short sdkc_acylinders;        /* alternate cylinders */
       u_short sdkc_xxx1;
       u_short sdkc_ntracks;           /* tracks per cylinder */
       u_short sdkc_xxx2;
       u_short sdkc_nsectors;          /* sectors per track */
       u_short sdkc_interleave;        /* interleave factor */
       u_short sdkc_xxx3;
       u_short sdkc_xxx4;
       u_short sdkc_sparespercyl;      /* spare sectors per cylinder */
       u_short sdkc_rpm;               /* rotational speed */
       u_short sdkc_pcylinders;        /* physical cylinders */
       u_short sdkc_xxx5[7];
};

/* controller info */
struct sun_dkctlr {
       int     sdkc_addr;              /* controller address */
       short   sdkc_unit;              /* unit (slave) address */
       short   sdkc_type;              /* controller type */
       short   sdkc_flags;             /* flags */
};

/* partition info */
struct sun_dkpart {
       int     sdkp_cyloffset;         /* starting cylinder */
       int     sdkp_nsectors;          /* number of sectors */
};

struct sun_disklabel {                  /* total size = 512 bytes */
       char    sl_text[128];
       char    sl_xxx1[292];
#define sl_bsdlabel     sl_xxx1         /* Embedded NetBSD label */
       u_short sl_rpm;                 /* rotational speed */
       u_short sl_pcylinders;          /* number of physical cyls */
#define sl_pcyl  sl_pcylinders          /* XXX: old sun3 */
       u_short sl_sparespercyl;        /* spare sectors per cylinder */
       char    sl_xxx3[4];
       u_short sl_interleave;          /* interleave factor */
       u_short sl_ncylinders;          /* data cylinders */
       u_short sl_acylinders;          /* alternate cylinders */
       u_short sl_ntracks;             /* tracks per cylinder */
       u_short sl_nsectors;            /* sectors per track */
       char    sl_xxx4[4];
       struct sun_dkpart sl_part[8];   /* partition layout */
       u_short sl_magic;               /* == SUN_DKMAGIC */
       u_short sl_cksum;               /* xor checksum of all shorts */
};

#define SUN_LABELOFFSET 128             /* XXX we don't use this */