1 /* $NetBSD: disklabel.h,v 1.3 2003/08/07 16:31:23 agc 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. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93 41 */ 42 43 /* 44 * SunOS disk label layout (only relevant portions discovered here). 45 */ 46 47 #define SUN_DKMAGIC 55998 48 49 /* These are the guys that Sun's dkinfo needs... */ 50 #define DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */ 51 #define DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */ 52 #define DKIOCGPART _IOR('d', 4, struct sun_dkpart) /* partition info */ 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 int sdkp_cyloffset; /* starting cylinder */ 82 int 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 #define sl_bsdlabel sl_xxx1 /* Embedded NetBSD label */ 89 u_short sl_rpm; /* rotational speed */ 90 u_short sl_pcylinders; /* number of physical cyls */ 91 #define sl_pcyl sl_pcylinders /* XXX: old sun3 */ 92 u_short sl_sparespercyl; /* spare sectors per cylinder */ 93 char sl_xxx3[4]; 94 u_short sl_interleave; /* interleave factor */ 95 u_short sl_ncylinders; /* data cylinders */ 96 u_short sl_acylinders; /* alternate cylinders */ 97 u_short sl_ntracks; /* tracks per cylinder */ 98 u_short sl_nsectors; /* sectors per track */ 99 char sl_xxx4[4]; 100 struct sun_dkpart sl_part[8]; /* partition layout */ 101 u_short sl_magic; /* == SUN_DKMAGIC */ 102 u_short sl_cksum; /* xor checksum of all shorts */ 103 }; 104 105 #define SUN_LABELOFFSET 128 /* XXX we don't use this */ 106