1 /* $NetBSD: disklabel.h,v 1.2 1998/08/22 14:55:28 mrg 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. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93 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 */ 59 struct 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 */ 76 struct 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 */ 84 struct sun_dkpart { 85 int sdkp_cyloffset; /* starting cylinder */ 86 int sdkp_nsectors; /* number of sectors */ 87 }; 88 89 struct sun_disklabel { /* total size = 512 bytes */ 90 char sl_text[128]; 91 char sl_xxx1[292]; 92 #define sl_bsdlabel sl_xxx1 /* Embedded NetBSD label */ 93 u_short sl_rpm; /* rotational speed */ 94 u_short sl_pcylinders; /* number of physical cyls */ 95 #define sl_pcyl sl_pcylinders /* XXX: old sun3 */ 96 u_short sl_sparespercyl; /* spare sectors per cylinder */ 97 char sl_xxx3[4]; 98 u_short sl_interleave; /* interleave factor */ 99 u_short sl_ncylinders; /* data cylinders */ 100 u_short sl_acylinders; /* alternate cylinders */ 101 u_short sl_ntracks; /* tracks per cylinder */ 102 u_short sl_nsectors; /* sectors per track */ 103 char sl_xxx4[4]; 104 struct sun_dkpart sl_part[8]; /* partition layout */ 105 u_short sl_magic; /* == SUN_DKMAGIC */ 106 u_short sl_cksum; /* xor checksum of all shorts */ 107 }; 108 109 #define SUN_LABELOFFSET 128 /* XXX we don't use this */ 110