scsi_disk.h revision 1.2
1 /* 2 * HISTORY 3 * $Log: scsi_disk.h,v $ 4 * Revision 1.2 1993/04/12 08:19:32 deraadt 5 * new scsi subsystem. 6 * changes also in config/mkioconf.c 7 * i386/isa/wd.c, fd.c, and all scsi drivers. 8 * 9 * Revision 1.1 1993/03/21 18:13:00 cgd 10 * after 0.2.2 "stable" patches applied 11 * 12 * Revision 1.2 1992/10/13 03:14:21 julian 13 * added the load-eject field in 'start/stop' for removable devices. 14 * 15 * Revision 1.1 1992/09/26 22:11:29 julian 16 * Initial revision 17 * 18 * 19 * PATCHES MAGIC LEVEL PATCH THAT GOT US HERE 20 * -------------------- ----- ---------------------- 21 * CURRENT PATCH LEVEL: 1 00098 22 * -------------------- ----- ---------------------- 23 * 24 * 16 Feb 93 Julian Elischer ADDED for SCSI system 25 * 26 */ 27 28 /* 29 * SCSI interface description 30 */ 31 32 /* 33 * Some lines of this file comes from a file of the name "scsi.h" 34 * distributed by OSF as part of mach2.5, 35 * so the following disclaimer has been kept. 36 * 37 * Copyright 1990 by Open Software Foundation, 38 * Grenoble, FRANCE 39 * 40 * All Rights Reserved 41 * 42 * Permission to use, copy, modify, and distribute this software and 43 * its documentation for any purpose and without fee is hereby granted, 44 * provided that the above copyright notice appears in all copies and 45 * that both the copyright notice and this permission notice appear in 46 * supporting documentation, and that the name of OSF or Open Software 47 * Foundation not be used in advertising or publicity pertaining to 48 * distribution of the software without specific, written prior 49 * permission. 50 * 51 * OSF DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE 52 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, 53 * IN NO EVENT SHALL OSF BE LIABLE FOR ANY SPECIAL, INDIRECT, OR 54 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 55 * LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, 56 * NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 57 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 58 */ 59 60 /* 61 * Largely written by Julian Elischer (julian (at) tfs.com) 62 * for TRW Financial Systems. 63 * 64 * TRW Financial Systems, in accordance with their agreement with Carnegie 65 * Mellon University, makes this software available to CMU to distribute 66 * or use in any manner that they see fit as long as this message is kept with 67 * the software. For this reason TFS also grants any other persons or 68 * organisations permission to use or modify this software. 69 * 70 * TFS supplies this software to be publicly redistributed 71 * on the understanding that TFS is not responsible for the correct 72 * functioning of this software in any circumstances. 73 * 74 */ 75 76 /* 77 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992 78 */ 79 80 /* 81 * SCSI command format 82 */ 83 84 85 struct scsi_reassign_blocks 86 { 87 u_char op_code; 88 u_char :5; 89 u_char lun:3; 90 u_char unused[3]; 91 u_char link:1; 92 u_char flag:1; 93 u_char :6; 94 }; 95 96 struct scsi_rw 97 { 98 u_char op_code; 99 u_char addr_2:5; /* Most significant */ 100 u_char lun:3; 101 u_char addr_1; 102 u_char addr_0; /* least significant */ 103 u_char length; 104 u_char link:1; 105 u_char flag:1; 106 u_char :6; 107 }; 108 109 struct scsi_rw_big 110 { 111 u_char op_code; 112 u_char rel_addr:1; 113 u_char :4; /* Most significant */ 114 u_char lun:3; 115 u_char addr_3; 116 u_char addr_2; 117 u_char addr_1; 118 u_char addr_0; /* least significant */ 119 u_char reserved;; 120 u_char length2; 121 u_char length1; 122 u_char link:1; 123 u_char flag:1; 124 u_char :4; 125 u_char vendor:2; 126 }; 127 128 struct scsi_read_capacity 129 { 130 u_char op_code; 131 u_char :5; 132 u_char lun:3; 133 u_char addr_3; /* Most Significant */ 134 u_char addr_2; 135 u_char addr_1; 136 u_char addr_0; /* Least Significant */ 137 u_char unused[3]; 138 u_char link:1; 139 u_char flag:1; 140 u_char :6; 141 }; 142 143 struct scsi_start_stop 144 { 145 u_char op_code; 146 u_char :5; 147 u_char lun:3; 148 u_char unused[2]; 149 u_char start:1; 150 u_char loej:1; 151 u_char :6; 152 u_char link:1; 153 u_char flag:1; 154 u_char :6; 155 }; 156 157 158 159 /* 160 * Opcodes 161 */ 162 163 #define FORMAT_DISK 0x04 164 #define REASSIGN_BLOCKS 0x07 165 #define READ_COMMAND 0x08 166 #define WRITE_COMMAND 0x0a 167 #define MODE_SELECT 0x15 168 #define MODE_SENSE 0x1a 169 #define START_STOP 0x1b 170 #define PREVENT_ALLOW 0x1e 171 #define READ_CAPACITY 0x25 172 #define READ_BIG 0x28 173 #define WRITE_BIG 0x2a 174 175 176 struct scsi_format_parms { /* physical BFI format */ 177 u_short reserved; 178 u_short list_len; 179 struct defect { 180 unsigned cyl : 24; 181 unsigned head : 8; 182 long bytes_from_index; 183 } defect[127]; 184 } format_parms; 185 186 187 struct scsi_read_cap_data 188 { 189 u_char addr_3; /* Most significant */ 190 u_char addr_2; 191 u_char addr_1; 192 u_char addr_0; /* Least significant */ 193 u_char length_3; /* Most significant */ 194 u_char length_2; 195 u_char length_1; 196 u_char length_0; /* Least significant */ 197 }; 198 199 struct scsi_reassign_blocks_data 200 { 201 u_char reserved[2]; 202 u_char length_msb; 203 u_char length_lsb; 204 struct 205 { 206 u_char dlbaddr_3; /* defect logical block address (MSB) */ 207 u_char dlbaddr_2; 208 u_char dlbaddr_1; 209 u_char dlbaddr_0; /* defect logical block address (LSB) */ 210 } defect_descriptor[1]; 211 }; 212 213 union disk_pages /* this is the structure copied from osf */ 214 { 215 struct page_disk_format { 216 u_char pg_code:6; /* page code (should be 3) */ 217 u_char :2; 218 u_char pg_length; /* page length (should be 0x16) */ 219 u_char trk_z_1; /* tracks per zone (MSB) */ 220 u_char trk_z_0; /* tracks per zone (LSB) */ 221 u_char alt_sec_1; /* alternate sectors per zone (MSB) */ 222 u_char alt_sec_0; /* alternate sectors per zone (LSB) */ 223 u_char alt_trk_z_1; /* alternate tracks per zone (MSB) */ 224 u_char alt_trk_z_0; /* alternate tracks per zone (LSB) */ 225 u_char alt_trk_v_1; /* alternate tracks per volume (MSB) */ 226 u_char alt_trk_v_0; /* alternate tracks per volume (LSB) */ 227 u_char ph_sec_t_1; /* physical sectors per track (MSB) */ 228 u_char ph_sec_t_0; /* physical sectors per track (LSB) */ 229 u_char bytes_s_1; /* bytes per sector (MSB) */ 230 u_char bytes_s_0; /* bytes per sector (LSB) */ 231 u_char interleave_1;/* interleave (MSB) */ 232 u_char interleave_0;/* interleave (LSB) */ 233 u_char trk_skew_1; /* track skew factor (MSB) */ 234 u_char trk_skew_0; /* track skew factor (LSB) */ 235 u_char cyl_skew_1; /* cylinder skew (MSB) */ 236 u_char cyl_skew_0; /* cylinder skew (LSB) */ 237 u_char reserved1:4; 238 u_char surf:1; 239 u_char rmb:1; 240 u_char hsec:1; 241 u_char ssec:1; 242 u_char reserved2; 243 u_char reserved3; 244 } disk_format; 245 struct page_rigid_geometry { 246 u_char pg_code:7; /* page code (should be 4) */ 247 u_char mbone:1; /* must be one */ 248 u_char pg_length; /* page length (should be 0x16) */ 249 u_char ncyl_2; /* number of cylinders (MSB) */ 250 u_char ncyl_1; /* number of cylinders */ 251 u_char ncyl_0; /* number of cylinders (LSB) */ 252 u_char nheads; /* number of heads */ 253 u_char st_cyl_wp_2; /* starting cyl., write precomp (MSB) */ 254 u_char st_cyl_wp_1; /* starting cyl., write precomp */ 255 u_char st_cyl_wp_0; /* starting cyl., write precomp (LSB) */ 256 u_char st_cyl_rwc_2;/* starting cyl., red. write cur (MSB)*/ 257 u_char st_cyl_rwc_1;/* starting cyl., red. write cur */ 258 u_char st_cyl_rwc_0;/* starting cyl., red. write cur (LSB)*/ 259 u_char driv_step_1; /* drive step rate (MSB) */ 260 u_char driv_step_0; /* drive step rate (LSB) */ 261 u_char land_zone_2; /* landing zone cylinder (MSB) */ 262 u_char land_zone_1; /* landing zone cylinder */ 263 u_char land_zone_0; /* landing zone cylinder (LSB) */ 264 u_char reserved1; 265 u_char reserved2; 266 u_char reserved3; 267 } rigid_geometry; 268 } ; 269
Indexes created Sun Sep 21 20:09:37 GMT 2025