1 /*
2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This software was developed by the Computer Systems Engineering group
6 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
7 * contributed to Berkeley.
8 *
9 * All advertising materials mentioning features or use of this software
10 * must display the following acknowledgement:
11 * This product includes software developed by the University of
12 * California, Lawrence Berkeley Laboratory.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 * must display the following acknowledgement:
24 * This product includes software developed by the University of
25 * California, Berkeley and its contributors.
26 * 4. Neither the name of the University nor the names of its contributors
27 * may be used to endorse or promote products derived from this software
28 * without specific prior written permission.
29 *
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 * SUCH DAMAGE.
41 *
42 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
43 * $NetBSD: disklabel.h,v 1.2 1998/08/22 14:55:28 mrg Exp $
44 *
45 * $FreeBSD: releng/5.0/sys/sys/sun_disklabel.h 106112 2002-10-29 06:43:57Z phk $
46 */
47
48 /*
49 * SunOS disk label layout (only relevant portions discovered here).
50 */
51
52 #define SUN_DKMAGIC 55998
53
54 /* geometry info */
55 struct sun_dkgeom {
56 u_short sdkc_ncylinders; /* data cylinders */
57 u_short sdkc_acylinders; /* alternate cylinders */
58 u_short sdkc_xxx1;
59 u_short sdkc_ntracks; /* tracks per cylinder */
60 u_short sdkc_xxx2;
61 u_short sdkc_nsectors; /* sectors per track */
62 u_short sdkc_interleave; /* interleave factor */
63 u_short sdkc_xxx3;
64 u_short sdkc_xxx4;
65 u_short sdkc_sparespercyl; /* spare sectors per cylinder */
66 u_short sdkc_rpm; /* rotational speed */
67 u_short sdkc_pcylinders; /* physical cylinders */
68 u_short sdkc_xxx5[7];
69 };
70
71 /* controller info */
72 struct sun_dkctlr {
73 int sdkc_addr; /* controller address */
74 short sdkc_unit; /* unit (slave) address */
75 short sdkc_type; /* controller type */
76 short sdkc_flags; /* flags */
77 };
78
79 /* partition info */
80 struct sun_dkpart {
81 u_int32_t sdkp_cyloffset; /* starting cylinder */
82 u_int32_t sdkp_nsectors; /* number of sectors */
83 };
84
85 struct sun_disklabel { /* total size = 512 bytes */
86 char sl_text[128];
87 char sl_xxx1[292];
88 u_int16_t sl_rpm; /* rotational speed */
89 u_int16_t sl_pcylinders; /* number of physical cyls */
90 u_int16_t sl_sparespercyl; /* spare sectors per cylinder */
91 char sl_xxx3[4];
92 u_int16_t sl_interleave; /* interleave factor */
93 u_int16_t sl_ncylinders; /* data cylinders */
94 u_int16_t sl_acylinders; /* alternate cylinders */
95 u_int16_t sl_ntracks; /* tracks per cylinder */
96 u_int16_t sl_nsectors; /* sectors per track */
97 char sl_xxx4[4];
98 struct sun_dkpart sl_part[8]; /* partition layout */
99 u_int16_t sl_magic; /* == SUN_DKMAGIC */
100 u_int16_t sl_cksum; /* xor checksum of all shorts */
101 };
102
103 #ifdef CTASSERT
104 CTASSERT(sizeof (struct sun_disklabel) == 512);
105 #endif
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