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/* $NetBSD: sun_disklabel.h,v 1.5 1995/06/26 22:09:47 pk 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. 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, Berkeley and its contributors.
* 4. 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).
*/
#define SUN_DKMAGIC 55998
/* These are the guys that Sun's dkinfo needs... */
#define DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */
#define DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */
#define 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 {
long sdkp_cyloffset; /* starting cylinder */
long sdkp_nsectors; /* number of sectors */
};
struct sun_disklabel { /* total size = 512 bytes */
char sl_text[128];
char sl_xxx1[292];
u_short sl_rpm; /* rotational speed */
u_short sl_pcylinders; /* number of physical cyls */
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
#ifdef _KERNEL
/* reads sun label in sector at [cp..cp+511] and sets *lp to BSD label */
int sun_disklabel __P((caddr_t, struct disklabel *)); /* true on success */
/* compatability dk ioctl's */
int sun_dkioctl __P((struct dkdevice *, u_long, caddr_t, int));
#endif
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