1/* $NetBSD: disklabel.h,v 1.6 2015/09/26 03:31:52 christos Exp $ */
2
3/*
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This software was developed by the Computer Systems Engineering group
8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
9 * contributed to Berkeley.
10 *
11 * All advertising materials mentioning features or use of this software
12 * must display the following acknowledgement:
13 * This product includes software developed by the University of
14 * California, Lawrence Berkeley Laboratory.
15 *
16 * Redistribution and use in source and binary forms, with or without
17 * modification, are permitted provided that the following conditions
18 * are met:
19 * 1. Redistributions of source code must retain the above copyright
20 * notice, this list of conditions and the following disclaimer.
21 * 2. Redistributions in binary form must reproduce the above copyright
22 * notice, this list of conditions and the following disclaimer in the
23 * documentation and/or other materials provided with the distribution.
24 * 3. Neither the name of the University nor the names of its contributors
25 * may be used to endorse or promote products derived from this software
26 * without specific prior written permission.
27 *
28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 * SUCH DAMAGE.
39 *
40 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
41 */
42
43/*
44 * SunOS disk label layout (only relevant portions discovered here).
45 */
46
47#include <sys/ioccom.h>
48
49#define SUN_DKMAGIC 55998
50
51/* These are the guys that Sun's dkinfo needs... */
52#define SUN_DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */
53#define SUN_DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */
54#define SUN_DKIOCGPART _IOR('d', 4, struct sun_dkpart) /* partition info */
55
56/* geometry info */
57struct sun_dkgeom {
58 u_short sdkc_ncylinders; /* data cylinders */
59 u_short sdkc_acylinders; /* alternate cylinders */
60 u_short sdkc_xxx1;
61 u_short sdkc_ntracks; /* tracks per cylinder */
62 u_short sdkc_xxx2;
63 u_short sdkc_nsectors; /* sectors per track */
64 u_short sdkc_interleave; /* interleave factor */
65 u_short sdkc_xxx3;
66 u_short sdkc_xxx4;
67 u_short sdkc_sparespercyl; /* spare sectors per cylinder */
68 u_short sdkc_rpm; /* rotational speed */
69 u_short sdkc_pcylinders; /* physical cylinders */
70 u_short sdkc_xxx5[7];
71};
72
73/* controller info */
74struct sun_dkctlr {
75 int sdkc_addr; /* controller address */
76 short sdkc_unit; /* unit (slave) address */
77 short sdkc_type; /* controller type */
78 short sdkc_flags; /* flags */
79};
80
81/* partition info */
82struct sun_dkpart {
83 int sdkp_cyloffset; /* starting cylinder */
84 int sdkp_nsectors; /* number of sectors */
85};
86
87struct sun_disklabel { /* total size = 512 bytes */
88 char sl_text[128];
89 char sl_xxx1[292];
90#define sl_bsdlabel sl_xxx1 /* Embedded NetBSD label */
91 u_short sl_rpm; /* rotational speed */
92 u_short sl_pcylinders; /* number of physical cyls */
93#define sl_pcyl sl_pcylinders /* XXX: old sun3 */
94 u_short sl_sparespercyl; /* spare sectors per cylinder */
95 char sl_xxx3[4];
96 u_short sl_interleave; /* interleave factor */
97 u_short sl_ncylinders; /* data cylinders */
98 u_short sl_acylinders; /* alternate cylinders */
99 u_short sl_ntracks; /* tracks per cylinder */
100 u_short sl_nsectors; /* sectors per track */
101 char sl_xxx4[4];
102 struct sun_dkpart sl_part[8]; /* partition layout */
103 u_short sl_magic; /* == SUN_DKMAGIC */
104 u_short sl_cksum; /* xor checksum of all shorts */
105};
106
107#define SUN_LABELOFFSET 128 /* XXX we don't use this */
108