BSD 4_4 release
[unix-history] / usr / src / sys / sparc / sunos / sun_disklabel.h
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eb616ef0 1/*
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2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
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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 *
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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
36162171 12 * California, Lawrence Berkeley Laboratory.
b480239a 13 *
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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.
eb616ef0 41 *
ad787160 42 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
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43 *
44 * from: $Header: sun_disklabel.h,v 1.4 92/06/17 07:04:13 torek Exp $
45 */
46
47/*
48 * SunOS disk label layout (only relevant portions discovered here).
49 */
50
51#define SUN_DKMAGIC 55998
52
53/* These are the guys that Sun's dkinfo needs... */
54#define DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */
55#define DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */
56#define DKIOCGPART _IOR('d', 4, struct sun_dkpart) /* partition info */
57
58/* geometry info */
59struct sun_dkgeom {
60 u_short sdkc_ncylinders; /* data cylinders */
61 u_short sdkc_acylinders; /* alternate cylinders */
62 u_short sdkc_xxx1;
63 u_short sdkc_ntracks; /* tracks per cylinder */
64 u_short sdkc_xxx2;
65 u_short sdkc_nsectors; /* sectors per track */
66 u_short sdkc_interleave; /* interleave factor */
67 u_short sdkc_xxx3;
68 u_short sdkc_xxx4;
69 u_short sdkc_sparespercyl; /* spare sectors per cylinder */
70 u_short sdkc_rpm; /* rotational speed */
71 u_short sdkc_pcylinders; /* physical cylinders */
72 u_short sdkc_xxx5[7];
73};
74
75/* controller info */
76struct sun_dkctlr {
77 int sdkc_addr; /* controller address */
78 short sdkc_unit; /* unit (slave) address */
79 short sdkc_type; /* controller type */
80 short sdkc_flags; /* flags */
81};
82
83/* partition info */
84struct sun_dkpart {
85 long sdkp_cyloffset; /* starting cylinder */
86 long sdkp_nsectors; /* number of sectors */
87};
88
89struct sun_disklabel { /* total size = 512 bytes */
90 char sl_text[128];
91 char sl_xxx1[292];
92 u_short sl_rpm; /* rotational speed */
93 char sl_xxx2[2];
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#ifdef KERNEL
108/* reads sun label in sector at [cp..cp+511] and sets *lp to BSD label */
109int sun_disklabel __P((caddr_t, struct disklabel *)); /* true on success */
110
111/* compatability dk ioctl's */
112int sun_dkioctl __P((struct dkdevice *, int, caddr_t, int));
113#endif