1 /* 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Van Jacobson of Lawrence Berkeley Laboratory. 7 * 8 * %sccs.include.redist.c% 9 * 10 * @(#)scsireg.h 8.1 (Berkeley) 06/10/93 11 */ 12 13 /* 14 * HP 98265A SCSI Interface Hardware Description. 15 */ 16 17 struct scsidevice { 18 u_char p0, scsi_id; 19 #define ID_MASK 0x1f 20 #define SCSI_ID 0x07 21 #define ID_WORD_DMA 0x20 22 u_char p2, scsi_csr; 23 #define CSR_IE 0x80 24 #define CSR_IR 0x40 25 #define SCSI_IPL(csr) ((((csr)>>4)&3)+3) 26 #define CSR_DMA32 0x08 27 #define CSR_DMAIN 0x04 28 #define CSR_DE1 0x02 29 #define CSR_DE0 0x01 30 u_char p4, scsi_wrap; 31 #define WRAP_REQ 0x80 32 #define WRAP_ACK 0x40 33 #define WRAP_BSY 0x08 34 #define WRAP_MSG 0x04 35 #define WRAP_CD 0x02 36 #define WRAP_IO 0x01 37 u_char p6, scsi_hconf; 38 #define HCONF_TP 0x80 39 #define SCSI_SYNC_XFER(hconf) (((hconf)>>5)&3) 40 #define HCONF_SD 0x10 41 #define HCONF_PARITY 0x08 42 u_char p8[24]; 43 u_char p32, scsi_bdid; 44 u_char p34, scsi_sctl; 45 #define SCTL_DISABLE 0x80 46 #define SCTL_CTRLRST 0x40 47 #define SCTL_DIAG 0x20 48 #define SCTL_ABRT_ENAB 0x10 49 #define SCTL_PARITY_ENAB 0x08 50 #define SCTL_SEL_ENAB 0x04 51 #define SCTL_RESEL_ENAB 0x02 52 #define SCTL_INTR_ENAB 0x01 53 u_char p36, scsi_scmd; 54 #define SCMD_RST 0x10 55 #define SCMD_ICPT_XFR 0x08 56 #define SCMD_PROG_XFR 0x04 57 #define SCMD_PAD 0x01 /* if initiator */ 58 #define SCMD_PERR_STOP 0x01 /* if target */ 59 /* command codes */ 60 #define SCMD_BUS_REL 0x00 61 #define SCMD_SELECT 0x20 62 #define SCMD_RST_ATN 0x40 63 #define SCMD_SET_ATN 0x60 64 #define SCMD_XFR 0x80 65 #define SCMD_XFR_PAUSE 0xa0 66 #define SCMD_RST_ACK 0xc0 67 #define SCMD_SET_ACK 0xe0 68 u_char p38, scsi_tmod; 69 #define TMOD_SYNC 0x80 70 u_char p40, scsi_ints; 71 #define INTS_SEL 0x80 72 #define INTS_RESEL 0x40 73 #define INTS_DISCON 0x20 74 #define INTS_CMD_DONE 0x10 75 #define INTS_SRV_REQ 0x08 76 #define INTS_TIMEOUT 0x04 77 #define INTS_HARD_ERR 0x02 78 #define INTS_RST 0x01 79 u_char p42, scsi_psns; 80 #define PSNS_REQ 0x80 81 #define PSNS_ACK 0x40 82 #define PSNS_ATN 0x20 83 #define PSNS_SEL 0x10 84 #define PSNS_BSY 0x08 85 u_char p44, scsi_ssts; 86 #define SSTS_INITIATOR 0x80 87 #define SSTS_TARGET 0x40 88 #define SSTS_BUSY 0x20 89 #define SSTS_XFR 0x10 90 #define SSTS_ACTIVE (SSTS_INITIATOR|SSTS_XFR) 91 #define SSTS_RST 0x08 92 #define SSTS_TCZERO 0x04 93 #define SSTS_DREG_FULL 0x02 94 #define SSTS_DREG_EMPTY 0x01 95 u_char p46, scsi_serr; 96 #define SERR_SCSI_PAR 0x80 97 #define SERR_SPC_PAR 0x40 98 #define SERR_TC_PAR 0x08 99 #define SERR_PHASE_ERR 0x04 100 #define SERR_SHORT_XFR 0x02 101 #define SERR_OFFSET 0x01 102 u_char p48, scsi_pctl; 103 #define PCTL_BFINT_ENAB 0x80 104 u_char p50, scsi_mbc; 105 u_char p52, scsi_dreg; 106 u_char p54, scsi_temp; 107 u_char p56, scsi_tch; 108 u_char p58, scsi_tcm; 109 u_char p60, scsi_tcl; 110 u_char p62, scsi_exbf; 111 }; 112 113 /* psns/pctl phase lines as bits */ 114 #define PHASE_MSG 0x04 115 #define PHASE_CD 0x02 /* =1 if 'command' */ 116 #define PHASE_IO 0x01 /* =1 if data inbound */ 117 /* Phase lines as values */ 118 #define PHASE 0x07 /* mask for psns/pctl phase */ 119 #define DATA_OUT_PHASE 0x00 120 #define DATA_IN_PHASE 0x01 121 #define CMD_PHASE 0x02 122 #define STATUS_PHASE 0x03 123 #define BUS_FREE_PHASE 0x04 124 #define ARB_SEL_PHASE 0x05 /* Fuji chip combines arbitration with sel. */ 125 #define MESG_OUT_PHASE 0x06 126 #define MESG_IN_PHASE 0x07 127 128 /* SCSI Messages */ 129 130 #define MSG_CMD_COMPLETE 0x00 131 #define MSG_EXT_MESSAGE 0x01 132 #define MSG_SAVE_DATA_PTR 0x02 133 #define MSG_RESTORE_PTR 0x03 134 #define MSG_DISCONNECT 0x04 135 #define MSG_INIT_DETECT_ERROR 0x05 136 #define MSG_ABORT 0x06 137 #define MSG_REJECT 0x07 138 #define MSG_NOOP 0x08 139 #define MSG_PARITY_ERROR 0x09 140 #define MSG_BUS_DEVICE_RESET 0x0C 141 #define MSG_IDENTIFY 0x80 142 #define MSG_IDENTIFY_DR 0xc0 /* (disconnect/reconnect allowed) */ 143 #define MSG_SYNC_REQ 0x01 144 145 /* SCSI Commands */ 146 147 #define CMD_TEST_UNIT_READY 0x00 148 #define CMD_REQUEST_SENSE 0x03 149 #define CMD_INQUIRY 0x12 150 #define CMD_SEND_DIAGNOSTIC 0x1D 151 152 #define CMD_REWIND 0x01 153 #define CMD_REZERO 0x01 154 #define CMD_FORMAT_UNIT 0x04 155 #define CMD_READ_BLOCK_LIMITS 0x05 156 #define CMD_REASSIGN_BLOCKS 0x07 157 #define CMD_READ 0x08 158 #define CMD_WRITE 0x0A 159 #define CMD_WRITE_FILEMARK 0x10 160 #define CMD_SPACE 0x11 161 #define CMD_MODE_SELECT 0x15 162 #define CMD_RELEASE_UNIT 0x17 163 #define CMD_ERASE 0x19 164 #define CMD_MODE_SENSE 0x1A 165 #define CMD_LOADUNLOAD 0x1B 166 #define CMD_RECEIVE_DIAG 0x1C 167 #define CMD_SEND_DIAG 0x1D 168 #define CMD_P_A_MEDIA_REMOVAL 0x1E 169 #define CMD_READ_CAPACITY 0x25 170 #define CMD_READ_EXT 0x28 171 #define CMD_WRITE_EXT 0x2A 172 #define CMD_READ_DEFECT_DATA 0x37 173 #define SD_MANUFAC_DEFECTS 0x14000000 174 #define SD_GROWN_DEFECTS 0x0c000000 175 #define CMD_READ_BUFFER 0x3B 176 #define CMD_WRITE_BUFFER 0x3C 177 #define CMD_READ_FULL 0xF0 178 #define CMD_MEDIA_TEST 0xF1 179 #define CMD_ACCESS_LOG 0xF2 180 #define CMD_WRITE_FULL 0xFC 181 #define CMD_MANAGE_PRIMARY 0xFD 182 #define CMD_EXECUTE_DATA 0xFE 183 184 /* SCSI status bits */ 185 186 #define STS_CHECKCOND 0x02 /* Check Condition (ie., read sense) */ 187 #define STS_CONDMET 0x04 /* Condition Met (ie., search worked) */ 188 #define STS_BUSY 0x08 189 #define STS_INTERMED 0x10 /* Intermediate status sent */ 190 #define STS_EXT 0x80 /* Extended status valid */ 191 192 /* command descriptor blocks */ 193 194 struct scsi_cdb6 { 195 u_char cmd; /* command code */ 196 u_char lun: 3, /* logical unit on ctlr */ 197 lbah: 5; /* msb of read/write logical block addr */ 198 u_char lbam; /* middle byte of l.b.a. */ 199 u_char lbal; /* lsb of l.b.a. */ 200 u_char len; /* transfer length */ 201 u_char xtra; 202 }; 203 204 struct scsi_cdb10 { 205 u_char cmd; /* command code */ 206 u_char lun: 3, /* logical unit on ctlr */ 207 : 4, 208 rel: 1; /* l.b.a. is relative addr if =1 */ 209 u_char lbah; /* msb of read/write logical block addr */ 210 u_char lbahm; /* high middle byte of l.b.a. */ 211 u_char lbalm; /* low middle byte of l.b.a. */ 212 u_char lbal; /* lsb of l.b.a. */ 213 u_char reserved; 214 u_char lenh; /* msb transfer length */ 215 u_char lenl; /* lsb transfer length */ 216 u_char xtra; 217 }; 218 219 /* basic sense data */ 220 221 struct scsi_sense { 222 u_char valid: 1, /* l.b.a. is valid */ 223 class: 3, 224 code: 4; 225 u_char vu: 4, /* vendor unique */ 226 lbah: 4; 227 u_char lbam; 228 u_char lbal; 229 }; 230 231 struct scsi_xsense { 232 u_char valid: 1, /* l.b.a. is valid */ 233 class: 3, 234 code: 4; 235 u_char segment; 236 u_char filemark: 1, 237 eom: 1, 238 ili: 1, /* illegal length indicator */ 239 rsvd: 1, 240 key: 4; 241 u_char info1; 242 u_char info2; 243 u_char info3; 244 u_char info4; 245 u_char len; /* additional sense length */ 246 }; 247 248 /* inquiry data */ 249 struct scsi_inquiry { 250 u_char type; 251 u_char qual; 252 u_char version; 253 u_char rsvd; 254 u_char len; 255 char class[3]; 256 char vendor_id[8]; 257 char product_id[16]; 258 char rev[4]; 259 }; 260 261 struct scsi_format_parms { /* physical BFI format */ 262 u_short reserved; 263 u_short list_len; 264 struct defect { 265 unsigned cyl : 24; 266 unsigned head : 8; 267 long bytes_from_index; 268 } defect[127]; 269 } format_parms; 270 271 struct scsi_reassign_parms { 272 u_short reserved; 273 u_short list_len; /* length in bytes of defects only */ 274 struct new_defect { 275 unsigned lba; /* logical block address */ 276 } new_defect[2]; 277 } reassign_parms; 278 279 struct scsi_modesel_hdr { 280 u_char rsvd1; 281 u_char media_type; 282 u_char rsvd2; 283 u_char block_desc_len; 284 u_int density : 8; 285 u_int number_blocks :24; 286 u_int rsvd3 : 8; 287 u_int block_length :24; 288 }; 289 290 struct scsi_modesense_hdr { 291 u_char len; 292 u_char media_type; 293 u_char wp : 1; 294 u_char rsvd1 : 7; 295 u_char block_desc_len; 296 u_int density : 8; 297 u_int number_blocks :24; 298 u_int rsvd2 : 8; 299 u_int block_length :24; 300 }; 301 302 /* 303 * Mode Select / Mode sense "pages" 304 */ 305 306 /* 307 * Page One - Error Recovery Parameters 308 */ 309 struct scsi_err_recovery { 310 u_char page_savable : 1; /* save parameters */ 311 u_char reserved : 1; 312 u_char page_code : 6; /* = 0x01 */ 313 u_char page_length; /* = 6 */ 314 u_char awre : 1; /* auto write realloc enabled */ 315 u_char arre : 1; /* auto read realloc enabled */ 316 u_char tb : 1; /* transfer block */ 317 u_char rc : 1; /* read continuous */ 318 u_char eec : 1; /* enable early correction */ 319 u_char per : 1; /* post error */ 320 u_char dte : 1; /* disable transfer on error */ 321 u_char dcr : 1; /* disable correction */ 322 u_char retry_count; 323 u_char correction_span; 324 u_char head_offset_count; 325 u_char strobe_offset_count; 326 u_char recovery_time_limit; 327 }; 328 329 /* 330 * Page Two - Disconnect / Reconnect Control Parameters 331 */ 332 struct scsi_disco_reco { 333 u_char page_savable : 1; /* save parameters */ 334 u_char rsvd : 1; 335 u_char page_code : 6; /* = 0x02 */ 336 u_char page_length; /* = 10 */ 337 u_char buffer_full_ratio; /* write, how full before reconnect? */ 338 u_char buffer_empty_ratio; /* read, how full before reconnect? */ 339 340 u_short bus_inactivity_limit; /* how much bus time for busy */ 341 u_short disconnect_time_limit; /* min to remain disconnected */ 342 u_short connect_time_limit; /* min to remain connected */ 343 u_short reserved_1; 344 }; 345 346 /* 347 * Page Three - Direct Access Device Format Parameters 348 */ 349 struct scsi_format { 350 u_char page_savable : 1; /* save parameters */ 351 u_char rsvd : 1; 352 u_char page_code : 6; /* = 0x03 */ 353 u_char page_length; /* = 22 */ 354 u_short tracks_per_zone; /* Handling of Defects Fields */ 355 u_short alt_sect_zone; 356 u_short alt_tracks_zone; 357 u_short alt_tracks_vol; 358 u_short sect_track; /* Track Format Field */ 359 u_short data_sect; /* Sector Format Fields */ 360 u_short interleave; 361 u_short track_skew_factor; 362 u_short cyl_skew_factor; 363 u_char ssec : 1; /* Drive Type Field */ 364 u_char hsec : 1; 365 u_char rmb : 1; 366 u_char surf : 1; 367 u_char ins : 1; 368 u_char reserved_1 : 3; 369 u_char reserved_2; 370 u_char reserved_3; 371 u_char reserved_4; 372 }; 373 374 /* 375 * Page Four - Rigid Disk Drive Geometry Parameters 376 */ 377 struct scsi_geometry { 378 u_char page_savable : 1; /* save parameters */ 379 u_char rsvd : 1; 380 u_char page_code : 6; /* = 0x04 */ 381 u_char page_length; /* = 18 */ 382 u_char cyl_ub; /* number of cylinders */ 383 u_char cyl_mb; 384 u_char cyl_lb; 385 u_char heads; /* number of heads */ 386 u_char precomp_cyl_ub; /* cylinder to start precomp */ 387 u_char precomp_cyl_mb; 388 u_char precomp_cyl_lb; 389 u_char current_cyl_ub; /* cyl to start reduced current */ 390 u_char current_cyl_mb; 391 u_char current_cyl_lb; 392 u_short step_rate; /* drive step rate */ 393 u_char landing_cyl_ub; /* landing zone cylinder */ 394 u_char landing_cyl_mb; 395 u_char landing_cyl_lb; 396 u_char reserved_1; 397 u_char reserved_2; 398 u_char reserved_3; 399 }; 400 401 /* 402 * Page 0x38 - Cache Control Parameters 403 */ 404 struct scsi_cache { 405 u_char page_savable : 1; /* save parameters */ 406 u_char rsvd : 1; 407 u_char page_code : 6; /* = 0x38 */ 408 u_char page_length; /* = 14 */ 409 u_char rsvd_1 : 1; 410 u_char wie : 1; /* write index enable */ 411 u_char rsvd_2 : 1; 412 u_char ce : 1; /* cache enable */ 413 u_char table_size : 4; 414 u_char prefetch_threshold; 415 u_char maximum_threshold; 416 u_char maximumprefetch_multiplier; 417 u_char minimum_threshold; 418 u_char minimum_prefetch_multiplier; 419 u_char reserved[8]; 420 }; 421 422 /* 423 * Control for SCSI "format" mode. 424 * 425 * "Format" mode allows a privileged process to issue direct SCSI 426 * commands to a drive (it is intended primarily to allow on-line 427 * formatting). SDIOCSFORMAT with a non-zero arg will put the drive 428 * into format mode; a zero arg will take it out. When in format 429 * mode, only the process that issued the SDIOCFORMAT can read or 430 * write the drive. 431 * 432 * In format mode, process is expected to 433 * - do SDIOCSCSICOMMAND to supply cdb for next SCSI op 434 * - do read or write as appropriate for cdb 435 * - if i/o error, optionally do SDIOCSENSE to get completion 436 * status and sense data from last scsi operation. 437 */ 438 439 struct scsi_fmt_cdb { 440 int len; /* cdb length (in bytes) */ 441 u_char cdb[28]; /* cdb to use on next read/write */ 442 }; 443 444 struct scsi_fmt_sense { 445 u_int status; /* completion status of last op */ 446 u_char sense[28]; /* sense data (if any) from last op */ 447 }; 448 449 #define SDIOCSFORMAT _IOW('S', 0x1, int) 450 #define SDIOCGFORMAT _IOR('S', 0x2, int) 451 #define SDIOCSCSICOMMAND _IOW('S', 0x3, struct scsi_fmt_cdb) 452 #define SDIOCSENSE _IOR('S', 0x4, struct scsi_fmt_sense) 453