2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
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.
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10 * must display the following acknowledgement:
11 * This product includes software developed by the University of
12 * California, Lawrence Berkeley Laboratory.
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15 * modification, are permitted provided that the following conditions
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18 * notice, this list of conditions and the following disclaimer.
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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.
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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 $
48 #ifndef _SYS_SUN_DISKLABEL_H_
49 #define _SYS_SUN_DISKLABEL_H_
52 * SunOS/Solaris disk label layout (partial).
54 * Suns disk label format contains a lot of historical baggage which we
55 * ignore entirely. The structure below contains the relevant bits and the
56 * _enc/_dec functions encode/decode only these fields.
59 #define SUN_DKMAGIC 55998
64 * XXX: I am actually not sure if this should be "16 sectors" or "8192 bytes".
65 * XXX: Considering that Sun went to the effort of getting 512 byte compatible
66 * XXX: CDROM drives produced my guess is that Sun computers stand little or
67 * XXX: even no chance of running, much less booting on !=512 byte media.
68 * XXX: Define this is in terms of bytes since that is easier for us.
70 #define SUN_BOOTSIZE 8192
74 u_int32_t sdkp_cyloffset; /* starting cylinder */
75 u_int32_t sdkp_nsectors; /* number of sectors */
78 struct sun_disklabel {
80 u_int16_t sl_rpm; /* rotational speed */
81 u_int16_t sl_pcylinders; /* number of physical cyls */
82 u_int16_t sl_sparespercyl; /* spare sectors per cylinder */
83 u_int16_t sl_interleave; /* interleave factor */
84 u_int16_t sl_ncylinders; /* data cylinders */
85 u_int16_t sl_acylinders; /* alternate cylinders */
86 u_int16_t sl_ntracks; /* tracks per cylinder */
87 u_int16_t sl_nsectors; /* sectors per track */
88 struct sun_dkpart sl_part[SUN_NPART]; /* partition layout */
89 u_int16_t sl_magic; /* == SUN_DKMAGIC */
92 int sunlabel_dec(void const *pp, struct sun_disklabel *sl);
93 void sunlabel_enc(void *pp, struct sun_disklabel *sl);
95 #endif /* _SYS_SUN_DISKLABEL_H_ */