scsi_disk.h revision 1.3
1 /* 2 * SCSI interface description 3 * 4 * Some lines of this file comes from a file of the name "scsi.h" 5 * distributed by OSF as part of mach2.5, 6 * so the following disclaimer has been kept. 7 * 8 * Copyright 1990 by Open Software Foundation, 9 * Grenoble, FRANCE 10 * 11 * All Rights Reserved 12 * 13 * Permission to use, copy, modify, and distribute this software and 14 * its documentation for any purpose and without fee is hereby granted, 15 * provided that the above copyright notice appears in all copies and 16 * that both the copyright notice and this permission notice appear in 17 * supporting documentation, and that the name of OSF or Open Software 18 * Foundation not be used in advertising or publicity pertaining to 19 * distribution of the software without specific, written prior 20 * permission. 21 * 22 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 23 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 24 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 25 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 26 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 27 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 28 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 29 */ 30 31 /* 32 * Largely written by Julian Elischer (julian (at) tfs.com) 33 * for TRW Financial Systems. 34 * 35 * TRW Financial Systems, in accordance with their agreement with Carnegie 36 * Mellon University, makes this software available to CMU to distribute 37 * or use in any manner that they see fit as long as this message is kept with 38 * the software. For this reason TFS also grants any other persons or 39 * organisations permission to use or modify this software. 40 * 41 * TFS supplies this software to be publicly redistributed 42 * on the understanding that TFS is not responsible for the correct 43 * functioning of this software in any circumstances. 44 * 45 * $Id: scsi_disk.h,v 1.3 1993/05/20 03:46:32 cgd Exp $ 46 */ 47 48 /* 49 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992 50 */ 51 52 /* 53 * SCSI command format 54 */ 55 56 57 struct scsi_reassign_blocks 58 { 59 u_char op_code; 60 u_char :5; 61 u_char lun:3; 62 u_char unused[3]; 63 u_char link:1; 64 u_char flag:1; 65 u_char :6; 66 }; 67 68 struct scsi_rw 69 { 70 u_char op_code; 71 u_char addr_2:5; /* Most significant */ 72 u_char lun:3; 73 u_char addr_1; 74 u_char addr_0; /* least significant */ 75 u_char length; 76 u_char link:1; 77 u_char flag:1; 78 u_char :6; 79 }; 80 81 struct scsi_rw_big 82 { 83 u_char op_code; 84 u_char rel_addr:1; 85 u_char :4; /* Most significant */ 86 u_char lun:3; 87 u_char addr_3; 88 u_char addr_2; 89 u_char addr_1; 90 u_char addr_0; /* least significant */ 91 u_char reserved;; 92 u_char length2; 93 u_char length1; 94 u_char link:1; 95 u_char flag:1; 96 u_char :4; 97 u_char vendor:2; 98 }; 99 100 struct scsi_read_capacity 101 { 102 u_char op_code; 103 u_char :5; 104 u_char lun:3; 105 u_char addr_3; /* Most Significant */ 106 u_char addr_2; 107 u_char addr_1; 108 u_char addr_0; /* Least Significant */ 109 u_char unused[3]; 110 u_char link:1; 111 u_char flag:1; 112 u_char :6; 113 }; 114 115 struct scsi_start_stop 116 { 117 u_char op_code; 118 u_char :5; 119 u_char lun:3; 120 u_char unused[2]; 121 u_char start:1; 122 u_char loej:1; 123 u_char :6; 124 u_char link:1; 125 u_char flag:1; 126 u_char :6; 127 }; 128 129 130 131 /* 132 * Opcodes 133 */ 134 135 #define FORMAT_DISK 0x04 136 #define REASSIGN_BLOCKS 0x07 137 #define READ_COMMAND 0x08 138 #define WRITE_COMMAND 0x0a 139 #define MODE_SELECT 0x15 140 #define MODE_SENSE 0x1a 141 #define START_STOP 0x1b 142 #define PREVENT_ALLOW 0x1e 143 #define READ_CAPACITY 0x25 144 #define READ_BIG 0x28 145 #define WRITE_BIG 0x2a 146 147 148 struct scsi_format_parms { /* physical BFI format */ 149 u_short reserved; 150 u_short list_len; 151 struct defect { 152 unsigned cyl : 24; 153 unsigned head : 8; 154 long bytes_from_index; 155 } defect[127]; 156 } format_parms; 157 158 159 struct scsi_read_cap_data 160 { 161 u_char addr_3; /* Most significant */ 162 u_char addr_2; 163 u_char addr_1; 164 u_char addr_0; /* Least significant */ 165 u_char length_3; /* Most significant */ 166 u_char length_2; 167 u_char length_1; 168 u_char length_0; /* Least significant */ 169 }; 170 171 struct scsi_reassign_blocks_data 172 { 173 u_char reserved[2]; 174 u_char length_msb; 175 u_char length_lsb; 176 struct 177 { 178 u_char dlbaddr_3; /* defect logical block address (MSB) */ 179 u_char dlbaddr_2; 180 u_char dlbaddr_1; 181 u_char dlbaddr_0; /* defect logical block address (LSB) */ 182 } defect_descriptor[1]; 183 }; 184 185 union disk_pages /* this is the structure copied from osf */ 186 { 187 struct page_disk_format { 188 u_char pg_code:6; /* page code (should be 3) */ 189 u_char :2; 190 u_char pg_length; /* page length (should be 0x16) */ 191 u_char trk_z_1; /* tracks per zone (MSB) */ 192 u_char trk_z_0; /* tracks per zone (LSB) */ 193 u_char alt_sec_1; /* alternate sectors per zone (MSB) */ 194 u_char alt_sec_0; /* alternate sectors per zone (LSB) */ 195 u_char alt_trk_z_1; /* alternate tracks per zone (MSB) */ 196 u_char alt_trk_z_0; /* alternate tracks per zone (LSB) */ 197 u_char alt_trk_v_1; /* alternate tracks per volume (MSB) */ 198 u_char alt_trk_v_0; /* alternate tracks per volume (LSB) */ 199 u_char ph_sec_t_1; /* physical sectors per track (MSB) */ 200 u_char ph_sec_t_0; /* physical sectors per track (LSB) */ 201 u_char bytes_s_1; /* bytes per sector (MSB) */ 202 u_char bytes_s_0; /* bytes per sector (LSB) */ 203 u_char interleave_1;/* interleave (MSB) */ 204 u_char interleave_0;/* interleave (LSB) */ 205 u_char trk_skew_1; /* track skew factor (MSB) */ 206 u_char trk_skew_0; /* track skew factor (LSB) */ 207 u_char cyl_skew_1; /* cylinder skew (MSB) */ 208 u_char cyl_skew_0; /* cylinder skew (LSB) */ 209 u_char reserved1:4; 210 u_char surf:1; 211 u_char rmb:1; 212 u_char hsec:1; 213 u_char ssec:1; 214 u_char reserved2; 215 u_char reserved3; 216 } disk_format; 217 struct page_rigid_geometry { 218 u_char pg_code:7; /* page code (should be 4) */ 219 u_char mbone:1; /* must be one */ 220 u_char pg_length; /* page length (should be 0x16) */ 221 u_char ncyl_2; /* number of cylinders (MSB) */ 222 u_char ncyl_1; /* number of cylinders */ 223 u_char ncyl_0; /* number of cylinders (LSB) */ 224 u_char nheads; /* number of heads */ 225 u_char st_cyl_wp_2; /* starting cyl., write precomp (MSB) */ 226 u_char st_cyl_wp_1; /* starting cyl., write precomp */ 227 u_char st_cyl_wp_0; /* starting cyl., write precomp (LSB) */ 228 u_char st_cyl_rwc_2;/* starting cyl., red. write cur (MSB)*/ 229 u_char st_cyl_rwc_1;/* starting cyl., red. write cur */ 230 u_char st_cyl_rwc_0;/* starting cyl., red. write cur (LSB)*/ 231 u_char driv_step_1; /* drive step rate (MSB) */ 232 u_char driv_step_0; /* drive step rate (LSB) */ 233 u_char land_zone_2; /* landing zone cylinder (MSB) */ 234 u_char land_zone_1; /* landing zone cylinder */ 235 u_char land_zone_0; /* landing zone cylinder (LSB) */ 236 u_char reserved1; 237 u_char reserved2; 238 u_char reserved3; 239 } rigid_geometry; 240 } ; 241
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