scsi_all.h revision 1.4
1 /* 2 * SCSI general interface description 3 */ 4 5 /* 6 * Largely written by Julian Elischer (julian (at) tfs.com) 7 * for TRW Financial Systems. 8 * 9 * TRW Financial Systems, in accordance with their agreement with Carnegie 10 * Mellon University, makes this software available to CMU to distribute 11 * or use in any manner that they see fit as long as this message is kept with 12 * the software. For this reason TFS also grants any other persons or 13 * organisations permission to use or modify this software. 14 * 15 * TFS supplies this software to be publicly redistributed 16 * on the understanding that TFS is not responsible for the correct 17 * functioning of this software in any circumstances. 18 * 19 * Ported to run under 386BSD by Julian Elischer (julian (at) tfs.com) Sept 1992 20 * 21 * $Id: scsi_all.h,v 1.4 1994/05/09 07:40:50 chopps Exp $ 22 */ 23 24 #ifndef _SCSI_SCSI_ALL_H 25 #define _SCSI_SCSI_ALL_H 1 26 /* 27 * SCSI command format 28 */ 29 30 /* 31 * Define dome bits that are in ALL (or a lot of) scsi commands 32 */ 33 #define SCSI_CTL_LINK 0x01 34 #define SCSI_CTL_FLAG 0x02 35 #define SCSI_CTL_VENDOR 0xC0 36 #define SCSI_CMD_LUN 0xA0 /* these two should not be needed */ 37 #define SCSI_CMD_LUN_SHIFT 5 /* LUN in the cmd is no longer SCSI */ 38 39 40 struct scsi_generic 41 { 42 u_char opcode; 43 u_char bytes[11]; 44 }; 45 46 struct scsi_test_unit_ready 47 { 48 u_char op_code; 49 u_char byte2; 50 u_char unused[3]; 51 u_char control; 52 }; 53 54 struct scsi_send_diag 55 { 56 u_char op_code; 57 u_char byte2; 58 #define SSD_UOL 0x01 59 #define SSD_DOL 0x02 60 #define SSD_SELFTEST 0x04 61 #define SSD_PF 0x10 62 u_char unused[1]; 63 u_char paramlen[2]; 64 u_char control; 65 }; 66 67 struct scsi_sense 68 { 69 u_char op_code; 70 u_char byte2; 71 u_char unused[2]; 72 u_char length; 73 u_char control; 74 }; 75 76 struct scsi_inquiry 77 { 78 u_char op_code; 79 u_char byte2; 80 u_char unused[2]; 81 u_char length; 82 u_char control; 83 }; 84 85 struct scsi_mode_sense 86 { 87 u_char op_code; 88 u_char byte2; 89 #define SMS_DBD 0x08 90 u_char page; 91 #define SMS_PAGE_CODE 0x3F 92 #define SMS_PAGE_CTRL 0xC0 93 #define SMS_PAGE_CTRL_CURRENT 0x00 94 #define SMS_PAGE_CTRL_CHANGEABLE 0x40 95 #define SMS_PAGE_CTRL_DEFAULT 0x80 96 #define SMS_PAGE_CTRL_SAVED 0xC0 97 u_char unused; 98 u_char length; 99 u_char control; 100 }; 101 102 struct scsi_mode_sense_big 103 { 104 u_char op_code; 105 u_char byte2; /* same bits as small version */ 106 u_char page; /* same bits as small version */ 107 u_char unused[4]; 108 u_char length[2]; 109 u_char control; 110 }; 111 112 struct scsi_mode_select 113 { 114 u_char op_code; 115 u_char byte2; 116 #define SMS_SP 0x01 117 #define SMS_PF 0x10 118 u_char unused[2]; 119 u_char length; 120 u_char control; 121 }; 122 123 struct scsi_mode_select_big 124 { 125 u_char op_code; 126 u_char byte2; /* same bits as small version */ 127 u_char unused[5]; 128 u_char length[2]; 129 u_char control; 130 }; 131 132 struct scsi_reserve 133 { 134 u_char op_code; 135 u_char byte2; 136 u_char unused[2]; 137 u_char length; 138 u_char control; 139 }; 140 141 struct scsi_release 142 { 143 u_char op_code; 144 u_char byte2; 145 u_char unused[2]; 146 u_char length; 147 u_char control; 148 }; 149 150 struct scsi_prevent 151 { 152 u_char op_code; 153 u_char byte2; 154 u_char unused[2]; 155 u_char how; 156 u_char control; 157 }; 158 #define PR_PREVENT 0x01 159 #define PR_ALLOW 0x00 160 161 struct scsi_changedef 162 { 163 u_char op_code; 164 u_char byte2; 165 u_char unused1; 166 u_char how; 167 u_char unused[4]; 168 u_char datalen; 169 u_char control; 170 }; 171 #define SC_SCSI_1 0x01 172 #define SC_SCSI_2 0x03 173 174 /* 175 * Opcodes 176 */ 177 178 #define TEST_UNIT_READY 0x00 179 #define REQUEST_SENSE 0x03 180 #define INQUIRY 0x12 181 #define MODE_SELECT 0x15 182 #define MODE_SENSE 0x1a 183 #define START_STOP 0x1b 184 #define RESERVE 0x16 185 #define RELEASE 0x17 186 #define PREVENT_ALLOW 0x1e 187 #define POSITION_TO_ELEMENT 0x2b 188 #define CHANGE_DEFINITION 0x40 189 #define MODE_SENSE_BIG 0x54 190 #define MODE_SELECT_BIG 0x55 191 #define MOVE_MEDIUM 0xa5 192 #define READ_ELEMENT_STATUS 0xb8 193 194 195 /* 196 * sense data format 197 */ 198 #define T_DIRECT 0 199 #define T_SEQUENTIAL 1 200 #define T_PRINTER 2 201 #define T_PROCESSOR 3 202 #define T_WORM 4 203 #define T_READONLY 5 204 #define T_SCANNER 6 205 #define T_OPTICAL 7 206 #define T_NODEVICE 0x1F 207 208 #define T_CHANGER 8 209 #define T_COMM 9 210 211 #define T_REMOV 1 212 #define T_FIXED 0 213 214 struct scsi_inquiry_data 215 { 216 u_char device; 217 #define SID_TYPE 0x1F 218 #define SID_QUAL 0xE0 219 #define SID_QUAL_LU_OK 0x00 220 #define SID_QUAL_LU_OFFLINE 0x20 221 #define SID_QUAL_RSVD 0x40 222 #define SID_QUAL_BAD_LU 0x60 223 u_char dev_qual2; 224 #define SID_QUAL2 0x7F 225 #define SID_REMOVABLE 0x80 226 u_char version; 227 #define SID_ANSII 0x07 228 #define SID_ECMA 0x38 229 #define SID_ISO 0xC0 230 u_char response_format; 231 u_char additional_length; 232 u_char unused[2]; 233 u_char flags; 234 #define SID_SftRe 0x01 235 #define SID_CmdQue 0x02 236 #define SID_Linked 0x08 237 #define SID_Sync 0x10 238 #define SID_WBus16 0x20 239 #define SID_WBus32 0x40 240 #define SID_RelAdr 0x80 241 char vendor[8]; 242 char product[16]; 243 char revision[4]; 244 u_char extra[8]; 245 }; 246 247 /* 248 * The union had to die. It caused a padding problem with 249 * m68k gcc, specifically `ext.extended.segment' was being 250 * read at byte 2 not 1. 251 */ 252 struct scsi_sense_data_old /* XXXX The union had to die. */ 253 { 254 /* 1*/ u_char error_code; /* same bits as new version */ 255 union 256 { 257 struct 258 { 259 /* 2*/ u_char blockhi; 260 /* 3*/ u_char blockmed; 261 /* 4*/ u_char blocklow; 262 } unextended; 263 struct 264 { 265 /* 2*/ u_char segment; 266 /* 3*/ u_char flags; /* same bits as new version */ 267 /* 7*/ u_char info[4]; 268 /* 8*/ u_char extra_len; 269 /* allocate enough room to hold new stuff 270 ( by increasing 16 to 24 below) */ 271 /*32*/ u_char extra_bytes[24]; 272 } extended; 273 }ext; 274 }; /* total of 32 bytes */ 275 276 /* 277 * This looks bad, and it is. However it fixes padding problems 278 * caused by using unions. This *needs* to be an array, if this code 279 * is to work on any architecture. 280 */ 281 struct scsi_sense_data 282 { 283 /* 1*/ u_char error_code; /* same bits as new version */ 284 #define XXX_unextended_blockhi extended_segment 285 #define XXX_unextended_blockmed extended_flags 286 #define XXX_unextended_blocklow extended_info[0] 287 /* 2*/ u_char extended_segment; 288 /* 3*/ u_char extended_flags; /* same bits as new version */ 289 /* 7*/ u_char extended_info[4]; 290 /* 8*/ u_char extended_extra_len; 291 /* 292 * allocate enough room to hold new stuff 293 * (by increasing 16 to 24 below) 294 */ 295 /*32*/ u_char extended_extra_bytes[24]; 296 }; /* total of 32 bytes */ 297 298 struct scsi_sense_data_new 299 { 300 /* 1*/ u_char error_code; 301 #define SSD_ERRCODE 0x7F 302 #define SSD_ERRCODE_VALID 0x80 303 union 304 { 305 struct /* this is deprecated, the standard says "DON'T"*/ 306 { 307 /* 2*/ u_char blockhi; 308 /* 3*/ u_char blockmed; 309 /* 4*/ u_char blocklow; 310 } unextended; 311 struct 312 { 313 /* 2*/ u_char segment; 314 /* 3*/ u_char flags; 315 #define SSD_KEY 0x0F 316 #define SSD_ILI 0x20 317 #define SSD_EOM 0x40 318 #define SSD_FILEMARK 0x80 319 /* 7*/ u_char info[4]; 320 /* 8*/ u_char extra_len; 321 /*12*/ u_char cmd_spec_info[4]; 322 /*13*/ u_char add_sense_code; 323 /*14*/ u_char add_sense_code_qual; 324 /*15*/ u_char fru; 325 /*16*/ u_char sense_key_spec_1; 326 #define SSD_SCS_VALID 0x80 327 /*17*/ u_char sense_key_spec_2; 328 /*18*/ u_char sense_key_spec_3; 329 /*32*/ u_char extra_bytes[14]; 330 } extended; 331 }ext; 332 }; /* total of 32 bytes */ 333 334 struct blk_desc 335 { 336 u_char density; 337 u_char nblocks[3]; 338 u_char reserved; 339 u_char blklen[3]; 340 }; 341 342 struct scsi_mode_header 343 { 344 u_char data_length; /* Sense data length */ 345 u_char medium_type; 346 u_char dev_spec; 347 u_char blk_desc_len; 348 }; 349 350 struct scsi_mode_header_big 351 { 352 u_char data_length[2]; /* Sense data length */ 353 u_char medium_type; 354 u_char dev_spec; 355 u_char unused[2]; 356 u_char blk_desc_len[2]; 357 }; 358 359 360 /* 361 * Status Byte 362 */ 363 #define SCSI_OK 0x00 364 #define SCSI_CHECK 0x02 365 #define SCSI_BUSY 0x08 366 #define SCSI_INTERM 0x10 367 #endif /*_SCSI_SCSI_ALL_H*/ 368
Indexes created Thu Sep 25 16:09:42 GMT 2025