1 /* $NetBSD: disklabel.h,v 1.6 2015/09/26 03:31:52 christos 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 #include <sys/ioccom.h> 48 49 #define SUN_DKMAGIC 55998 50 51 /* These are the guys that Sun's dkinfo needs... */ 52 #define SUN_DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */ 53 #define SUN_DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */ 54 #define SUN_DKIOCGPART _IOR('d', 4, struct sun_dkpart) /* partition info */ 55 56 /* geometry info */ 57 struct sun_dkgeom { 58 u_short sdkc_ncylinders; /* data cylinders */ 59 u_short sdkc_acylinders; /* alternate cylinders */ 60 u_short sdkc_xxx1; 61 u_short sdkc_ntracks; /* tracks per cylinder */ 62 u_short sdkc_xxx2; 63 u_short sdkc_nsectors; /* sectors per track */ 64 u_short sdkc_interleave; /* interleave factor */ 65 u_short sdkc_xxx3; 66 u_short sdkc_xxx4; 67 u_short sdkc_sparespercyl; /* spare sectors per cylinder */ 68 u_short sdkc_rpm; /* rotational speed */ 69 u_short sdkc_pcylinders; /* physical cylinders */ 70 u_short sdkc_xxx5[7]; 71 }; 72 73 /* controller info */ 74 struct sun_dkctlr { 75 int sdkc_addr; /* controller address */ 76 short sdkc_unit; /* unit (slave) address */ 77 short sdkc_type; /* controller type */ 78 short sdkc_flags; /* flags */ 79 }; 80 81 /* partition info */ 82 struct sun_dkpart { 83 int sdkp_cyloffset; /* starting cylinder */ 84 int sdkp_nsectors; /* number of sectors */ 85 }; 86 87 struct sun_disklabel { /* total size = 512 bytes */ 88 char sl_text[128]; 89 char sl_xxx1[292]; 90 #define sl_bsdlabel sl_xxx1 /* Embedded NetBSD label */ 91 u_short sl_rpm; /* rotational speed */ 92 u_short sl_pcylinders; /* number of physical cyls */ 93 #define sl_pcyl sl_pcylinders /* XXX: old sun3 */ 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 #define SUN_LABELOFFSET 128 /* XXX we don't use this */ 108