sun_disklabel.h revision 96267
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: head/sys/sys/sun_disklabel.h 96267 2002-05-09 20:22:59Z obrien $ 46 */ 47 48/* 49 * SunOS disk label layout (only relevant portions discovered here). 50 */ 51 52#define SUN_DKMAGIC 55998 53 54/* geometry info */ 55struct 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 */ 72struct 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 */ 80struct sun_dkpart { 81 u_int32_t sdkp_cyloffset; /* starting cylinder */ 82 u_int32_t sdkp_nsectors; /* number of sectors */ 83}; 84 85struct 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