1/*- 2 * Aic7xxx register and scratch ram definitions. 3 * 4 * Copyright (c) 1994-2001 Justin T. Gibbs. 5 * Copyright (c) 2000-2001 Adaptec Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification. 14 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 15 * substantially similar to the "NO WARRANTY" disclaimer below 16 * ("Disclaimer") and any redistribution must be conditioned upon 17 * including a substantially similar Disclaimer requirement for further 18 * binary redistribution. 19 * 3. Neither the names of the above-listed copyright holders nor the names 20 * of any contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * Alternatively, this software may be distributed under the terms of the 24 * GNU General Public License ("GPL") version 2 as published by the Free 25 * Software Foundation. 26 * 27 * NO WARRANTY 28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 29 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 30 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 31 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 32 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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, 36 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 37 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGES. 39 * 40 * $FreeBSD$ 41 */ 42VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $" 43 44/* 45 * This file is processed by the aic7xxx_asm utility for use in assembling 46 * firmware for the aic7xxx family of SCSI host adapters as well as to generate 47 * a C header file for use in the kernel portion of the Aic7xxx driver. 48 * 49 * All page numbers refer to the Adaptec AIC-7770 Data Book available from 50 * Adaptec's Technical Documents Department 1-800-934-2766 51 */ 52 53/* 54 * SCSI Sequence Control (p. 3-11). 55 * Each bit, when set starts a specific SCSI sequence on the bus 56 */ 57register SCSISEQ { 58 address 0x000 59 access_mode RW 60 field TEMODE 0x80 61 field ENSELO 0x40 62 field ENSELI 0x20 63 field ENRSELI 0x10 64 field ENAUTOATNO 0x08 65 field ENAUTOATNI 0x04 66 field ENAUTOATNP 0x02 67 field SCSIRSTO 0x01 68} 69 70/* 71 * SCSI Transfer Control 0 Register (pp. 3-13). 72 * Controls the SCSI module data path. 73 */ 74register SXFRCTL0 { 75 address 0x001 76 access_mode RW 77 field DFON 0x80 78 field DFPEXP 0x40 79 field FAST20 0x20 80 field CLRSTCNT 0x10 81 field SPIOEN 0x08 82 field SCAMEN 0x04 83 field CLRCHN 0x02 84} 85 86/* 87 * SCSI Transfer Control 1 Register (pp. 3-14,15). 88 * Controls the SCSI module data path. 89 */ 90register SXFRCTL1 { 91 address 0x002 92 access_mode RW 93 field BITBUCKET 0x80 94 field SWRAPEN 0x40 95 field ENSPCHK 0x20 96 mask STIMESEL 0x18 97 field ENSTIMER 0x04 98 field ACTNEGEN 0x02 99 field STPWEN 0x01 /* Powered Termination */ 100} 101 102/* 103 * SCSI Control Signal Read Register (p. 3-15). 104 * Reads the actual state of the SCSI bus pins 105 */ 106register SCSISIGI { 107 address 0x003 108 access_mode RO 109 field CDI 0x80 110 field IOI 0x40 111 field MSGI 0x20 112 field ATNI 0x10 113 field SELI 0x08 114 field BSYI 0x04 115 field REQI 0x02 116 field ACKI 0x01 117/* 118 * Possible phases in SCSISIGI 119 */ 120 mask PHASE_MASK CDI|IOI|MSGI 121 mask P_DATAOUT 0x00 122 mask P_DATAIN IOI 123 mask P_DATAOUT_DT P_DATAOUT|MSGI 124 mask P_DATAIN_DT P_DATAIN|MSGI 125 mask P_COMMAND CDI 126 mask P_MESGOUT CDI|MSGI 127 mask P_STATUS CDI|IOI 128 mask P_MESGIN CDI|IOI|MSGI 129} 130 131/* 132 * SCSI Control Signal Write Register (p. 3-16). 133 * Writing to this register modifies the control signals on the bus. Only 134 * those signals that are allowed in the current mode (Initiator/Target) are 135 * asserted. 136 */ 137register SCSISIGO { 138 address 0x003 139 access_mode WO 140 field CDO 0x80 141 field IOO 0x40 142 field MSGO 0x20 143 field ATNO 0x10 144 field SELO 0x08 145 field BSYO 0x04 146 field REQO 0x02 147 field ACKO 0x01 148/* 149 * Possible phases to write into SCSISIG0 150 */ 151 mask PHASE_MASK CDI|IOI|MSGI 152 mask P_DATAOUT 0x00 153 mask P_DATAIN IOI 154 mask P_COMMAND CDI 155 mask P_MESGOUT CDI|MSGI 156 mask P_STATUS CDI|IOI 157 mask P_MESGIN CDI|IOI|MSGI 158} 159 160/* 161 * SCSI Rate Control (p. 3-17). 162 * Contents of this register determine the Synchronous SCSI data transfer 163 * rate and the maximum synchronous Req/Ack offset. An offset of 0 in the 164 * SOFS (3:0) bits disables synchronous data transfers. Any offset value 165 * greater than 0 enables synchronous transfers. 166 */ 167register SCSIRATE { 168 address 0x004 169 access_mode RW 170 field WIDEXFER 0x80 /* Wide transfer control */ 171 field ENABLE_CRC 0x40 /* CRC for D-Phases */ 172 field SINGLE_EDGE 0x10 /* Disable DT Transfers */ 173 mask SXFR 0x70 /* Sync transfer rate */ 174 mask SXFR_ULTRA2 0x0f /* Sync transfer rate */ 175 mask SOFS 0x0f /* Sync offset */ 176} 177 178/* 179 * SCSI ID (p. 3-18). 180 * Contains the ID of the board and the current target on the 181 * selected channel. 182 */ 183register SCSIID { 184 address 0x005 185 access_mode RW 186 mask TID 0xf0 /* Target ID mask */ 187 mask TWIN_TID 0x70 188 field TWIN_CHNLB 0x80 189 mask OID 0x0f /* Our ID mask */ 190 /* 191 * SCSI Maximum Offset (p. 4-61 aic7890/91 Data Book) 192 * The aic7890/91 allow an offset of up to 127 transfers in both wide 193 * and narrow mode. 194 */ 195 alias SCSIOFFSET 196 mask SOFS_ULTRA2 0x7f /* Sync offset U2 chips */ 197} 198 199/* 200 * SCSI Latched Data (p. 3-19). 201 * Read/Write latches used to transfer data on the SCSI bus during 202 * Automatic or Manual PIO mode. SCSIDATH can be used for the 203 * upper byte of a 16bit wide asynchronouse data phase transfer. 204 */ 205register SCSIDATL { 206 address 0x006 207 access_mode RW 208} 209 210register SCSIDATH { 211 address 0x007 212 access_mode RW 213} 214 215/* 216 * SCSI Transfer Count (pp. 3-19,20) 217 * These registers count down the number of bytes transferred 218 * across the SCSI bus. The counter is decremented only once 219 * the data has been safely transferred. SDONE in SSTAT0 is 220 * set when STCNT goes to 0 221 */ 222register STCNT { 223 address 0x008 224 size 3 225 access_mode RW 226} 227 228/* ALT_MODE registers (Ultra2 and Ultra160 chips) */ 229register SXFRCTL2 { 230 address 0x013 231 access_mode RW 232 field AUTORSTDIS 0x10 233 field CMDDMAEN 0x08 234 mask ASYNC_SETUP 0x07 235} 236 237/* ALT_MODE register on Ultra160 chips */ 238register OPTIONMODE { 239 address 0x008 240 access_mode RW 241 field AUTORATEEN 0x80 242 field AUTOACKEN 0x40 243 field ATNMGMNTEN 0x20 244 field BUSFREEREV 0x10 245 field EXPPHASEDIS 0x08 246 field SCSIDATL_IMGEN 0x04 247 field AUTO_MSGOUT_DE 0x02 248 field DIS_MSGIN_DUALEDGE 0x01 249 mask OPTIONMODE_DEFAULTS AUTO_MSGOUT_DE|DIS_MSGIN_DUALEDGE 250} 251 252/* ALT_MODE register on Ultra160 chips */ 253register TARGCRCCNT { 254 address 0x00a 255 size 2 256 access_mode RW 257} 258 259/* 260 * Clear SCSI Interrupt 0 (p. 3-20) 261 * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT0. 262 */ 263register CLRSINT0 { 264 address 0x00b 265 access_mode WO 266 field CLRSELDO 0x40 267 field CLRSELDI 0x20 268 field CLRSELINGO 0x10 269 field CLRSWRAP 0x08 270 field CLRIOERR 0x08 /* Ultra2 Only */ 271 field CLRSPIORDY 0x02 272} 273 274/* 275 * SCSI Status 0 (p. 3-21) 276 * Contains one set of SCSI Interrupt codes 277 * These are most likely of interest to the sequencer 278 */ 279register SSTAT0 { 280 address 0x00b 281 access_mode RO 282 field TARGET 0x80 /* Board acting as target */ 283 field SELDO 0x40 /* Selection Done */ 284 field SELDI 0x20 /* Board has been selected */ 285 field SELINGO 0x10 /* Selection In Progress */ 286 field SWRAP 0x08 /* 24bit counter wrap */ 287 field IOERR 0x08 /* LVD Tranceiver mode changed */ 288 field SDONE 0x04 /* STCNT = 0x000000 */ 289 field SPIORDY 0x02 /* SCSI PIO Ready */ 290 field DMADONE 0x01 /* DMA transfer completed */ 291} 292 293/* 294 * Clear SCSI Interrupt 1 (p. 3-23) 295 * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT1. 296 */ 297register CLRSINT1 { 298 address 0x00c 299 access_mode WO 300 field CLRSELTIMEO 0x80 301 field CLRATNO 0x40 302 field CLRSCSIRSTI 0x20 303 field CLRBUSFREE 0x08 304 field CLRSCSIPERR 0x04 305 field CLRPHASECHG 0x02 306 field CLRREQINIT 0x01 307} 308 309/* 310 * SCSI Status 1 (p. 3-24) 311 */ 312register SSTAT1 { 313 address 0x00c 314 access_mode RO 315 field SELTO 0x80 316 field ATNTARG 0x40 317 field SCSIRSTI 0x20 318 field PHASEMIS 0x10 319 field BUSFREE 0x08 320 field SCSIPERR 0x04 321 field PHASECHG 0x02 322 field REQINIT 0x01 323} 324 325/* 326 * SCSI Status 2 (pp. 3-25,26) 327 */ 328register SSTAT2 { 329 address 0x00d 330 access_mode RO 331 field OVERRUN 0x80 332 field SHVALID 0x40 /* Shadow Layer non-zero */ 333 field EXP_ACTIVE 0x10 /* SCSI Expander Active */ 334 field CRCVALERR 0x08 /* CRC doesn't match (U3 only) */ 335 field CRCENDERR 0x04 /* No terminal CRC packet (U3 only) */ 336 field CRCREQERR 0x02 /* Illegal CRC packet req (U3 only) */ 337 field DUAL_EDGE_ERR 0x01 /* Incorrect data phase (U3 only) */ 338 mask SFCNT 0x1f 339} 340 341/* 342 * SCSI Status 3 (p. 3-26) 343 */ 344register SSTAT3 { 345 address 0x00e 346 access_mode RO 347 mask SCSICNT 0xf0 348 mask OFFCNT 0x0f 349 mask U2OFFCNT 0x7f 350} 351 352/* 353 * SCSI ID for the aic7890/91 chips 354 */ 355register SCSIID_ULTRA2 { 356 address 0x00f 357 access_mode RW 358 mask TID 0xf0 /* Target ID mask */ 359 mask OID 0x0f /* Our ID mask */ 360} 361 362/* 363 * SCSI Interrupt Mode 1 (p. 3-28) 364 * Setting any bit will enable the corresponding function 365 * in SIMODE0 to interrupt via the IRQ pin. 366 */ 367register SIMODE0 { 368 address 0x010 369 access_mode RW 370 field ENSELDO 0x40 371 field ENSELDI 0x20 372 field ENSELINGO 0x10 373 field ENSWRAP 0x08 374 field ENIOERR 0x08 /* LVD Tranceiver mode changes */ 375 field ENSDONE 0x04 376 field ENSPIORDY 0x02 377 field ENDMADONE 0x01 378} 379 380/* 381 * SCSI Interrupt Mode 1 (pp. 3-28,29) 382 * Setting any bit will enable the corresponding function 383 * in SIMODE1 to interrupt via the IRQ pin. 384 */ 385register SIMODE1 { 386 address 0x011 387 access_mode RW 388 field ENSELTIMO 0x80 389 field ENATNTARG 0x40 390 field ENSCSIRST 0x20 391 field ENPHASEMIS 0x10 392 field ENBUSFREE 0x08 393 field ENSCSIPERR 0x04 394 field ENPHASECHG 0x02 395 field ENREQINIT 0x01 396} 397 398/* 399 * SCSI Data Bus (High) (p. 3-29) 400 * This register reads data on the SCSI Data bus directly. 401 */ 402register SCSIBUSL { 403 address 0x012 404 access_mode RW 405} 406 407register SCSIBUSH { 408 address 0x013 409 access_mode RW 410} 411 412/* 413 * SCSI/Host Address (p. 3-30) 414 * These registers hold the host address for the byte about to be 415 * transferred on the SCSI bus. They are counted up in the same 416 * manner as STCNT is counted down. SHADDR should always be used 417 * to determine the address of the last byte transferred since HADDR 418 * can be skewed by write ahead. 419 */ 420register SHADDR { 421 address 0x014 422 size 4 423 access_mode RO 424} 425 426/* 427 * Selection Timeout Timer (p. 3-30) 428 */ 429register SELTIMER { 430 address 0x018 431 access_mode RW 432 field STAGE6 0x20 433 field STAGE5 0x10 434 field STAGE4 0x08 435 field STAGE3 0x04 436 field STAGE2 0x02 437 field STAGE1 0x01 438 alias TARGIDIN 439} 440 441/* 442 * Selection/Reselection ID (p. 3-31) 443 * Upper four bits are the device id. The ONEBIT is set when the re/selecting 444 * device did not set its own ID. 445 */ 446register SELID { 447 address 0x019 448 access_mode RW 449 mask SELID_MASK 0xf0 450 field ONEBIT 0x08 451} 452 453register SCAMCTL { 454 address 0x01a 455 access_mode RW 456 field ENSCAMSELO 0x80 457 field CLRSCAMSELID 0x40 458 field ALTSTIM 0x20 459 field DFLTTID 0x10 460 mask SCAMLVL 0x03 461} 462 463/* 464 * Target Mode Selecting in ID bitmask (aic7890/91/96/97) 465 */ 466register TARGID { 467 address 0x01b 468 size 2 469 access_mode RW 470} 471 472/* 473 * Serial Port I/O Cabability register (p. 4-95 aic7860 Data Book) 474 * Indicates if external logic has been attached to the chip to 475 * perform the tasks of accessing a serial eeprom, testing termination 476 * strength, and performing cable detection. On the aic7860, most of 477 * these features are handled on chip, but on the aic7855 an attached 478 * aic3800 does the grunt work. 479 */ 480register SPIOCAP { 481 address 0x01b 482 access_mode RW 483 field SOFT1 0x80 484 field SOFT0 0x40 485 field SOFTCMDEN 0x20 486 field EXT_BRDCTL 0x10 /* External Board control */ 487 field SEEPROM 0x08 /* External serial eeprom logic */ 488 field EEPROM 0x04 /* Writable external BIOS ROM */ 489 field ROM 0x02 /* Logic for accessing external ROM */ 490 field SSPIOCPS 0x01 /* Termination and cable detection */ 491} 492 493register BRDCTL { 494 address 0x01d 495 field BRDDAT7 0x80 496 field BRDDAT6 0x40 497 field BRDDAT5 0x20 498 field BRDSTB 0x10 499 field BRDCS 0x08 500 field BRDRW 0x04 501 field BRDCTL1 0x02 502 field BRDCTL0 0x01 503 /* 7890 Definitions */ 504 field BRDDAT4 0x10 505 field BRDDAT3 0x08 506 field BRDDAT2 0x04 507 field BRDRW_ULTRA2 0x02 508 field BRDSTB_ULTRA2 0x01 509} 510 511/* 512 * Serial EEPROM Control (p. 4-92 in 7870 Databook) 513 * Controls the reading and writing of an external serial 1-bit 514 * EEPROM Device. In order to access the serial EEPROM, you must 515 * first set the SEEMS bit that generates a request to the memory 516 * port for access to the serial EEPROM device. When the memory 517 * port is not busy servicing another request, it reconfigures 518 * to allow access to the serial EEPROM. When this happens, SEERDY 519 * gets set high to verify that the memory port access has been 520 * granted. 521 * 522 * After successful arbitration for the memory port, the SEECS bit of 523 * the SEECTL register is connected to the chip select. The SEECK, 524 * SEEDO, and SEEDI are connected to the clock, data out, and data in 525 * lines respectively. The SEERDY bit of SEECTL is useful in that it 526 * gives us an 800 nsec timer. After a write to the SEECTL register, 527 * the SEERDY goes high 800 nsec later. The one exception to this is 528 * when we first request access to the memory port. The SEERDY goes 529 * high to signify that access has been granted and, for this case, has 530 * no implied timing. 531 * 532 * See 93cx6.c for detailed information on the protocol necessary to 533 * read the serial EEPROM. 534 */ 535register SEECTL { 536 address 0x01e 537 field EXTARBACK 0x80 538 field EXTARBREQ 0x40 539 field SEEMS 0x20 540 field SEERDY 0x10 541 field SEECS 0x08 542 field SEECK 0x04 543 field SEEDO 0x02 544 field SEEDI 0x01 545} 546/* 547 * SCSI Block Control (p. 3-32) 548 * Controls Bus type and channel selection. In a twin channel configuration 549 * addresses 0x00-0x1e are gated to the appropriate channel based on this 550 * register. SELWIDE allows for the coexistence of 8bit and 16bit devices 551 * on a wide bus. 552 */ 553register SBLKCTL { 554 address 0x01f 555 access_mode RW 556 field DIAGLEDEN 0x80 /* Aic78X0 only */ 557 field DIAGLEDON 0x40 /* Aic78X0 only */ 558 field AUTOFLUSHDIS 0x20 559 field SELBUSB 0x08 560 field ENAB40 0x08 /* LVD transceiver active */ 561 field ENAB20 0x04 /* SE/HVD transceiver active */ 562 field SELWIDE 0x02 563 field XCVR 0x01 /* External transceiver active */ 564} 565 566/* 567 * Sequencer Control (p. 3-33) 568 * Error detection mode and speed configuration 569 */ 570register SEQCTL { 571 address 0x060 572 access_mode RW 573 field PERRORDIS 0x80 574 field PAUSEDIS 0x40 575 field FAILDIS 0x20 576 field FASTMODE 0x10 577 field BRKADRINTEN 0x08 578 field STEP 0x04 579 field SEQRESET 0x02 580 field LOADRAM 0x01 581} 582 583/* 584 * Sequencer RAM Data (p. 3-34) 585 * Single byte window into the Scratch Ram area starting at the address 586 * specified by SEQADDR0 and SEQADDR1. To write a full word, simply write 587 * four bytes in succession. The SEQADDRs will increment after the most 588 * significant byte is written 589 */ 590register SEQRAM { 591 address 0x061 592 access_mode RW 593} 594 595/* 596 * Sequencer Address Registers (p. 3-35) 597 * Only the first bit of SEQADDR1 holds addressing information 598 */ 599register SEQADDR0 { 600 address 0x062 601 access_mode RW 602} 603 604register SEQADDR1 { 605 address 0x063 606 access_mode RW 607 mask SEQADDR1_MASK 0x01 608} 609 610/* 611 * Accumulator 612 * We cheat by passing arguments in the Accumulator up to the kernel driver 613 */ 614register ACCUM { 615 address 0x064 616 access_mode RW 617 accumulator 618} 619 620register SINDEX { 621 address 0x065 622 access_mode RW 623 sindex 624} 625 626register DINDEX { 627 address 0x066 628 access_mode RW 629} 630 631register ALLONES { 632 address 0x069 633 access_mode RO 634 allones 635} 636 637register ALLZEROS { 638 address 0x06a 639 access_mode RO 640 allzeros 641} 642 643register NONE { 644 address 0x06a 645 access_mode WO 646 none 647} 648 649register FLAGS { 650 address 0x06b 651 access_mode RO 652 field ZERO 0x02 653 field CARRY 0x01 654} 655 656register SINDIR { 657 address 0x06c 658 access_mode RO 659} 660 661register DINDIR { 662 address 0x06d 663 access_mode WO 664} 665 666register FUNCTION1 { 667 address 0x06e 668 access_mode RW 669} 670 671register STACK { 672 address 0x06f 673 access_mode RO 674} 675 676const STACK_SIZE 4 677 678/* 679 * Board Control (p. 3-43) 680 */ 681register BCTL { 682 address 0x084 683 access_mode RW 684 field ACE 0x08 685 field ENABLE 0x01 686} 687 688/* 689 * On the aic78X0 chips, Board Control is replaced by the DSCommand 690 * register (p. 4-64) 691 */ 692register DSCOMMAND0 { 693 address 0x084 694 access_mode RW 695 field CACHETHEN 0x80 /* Cache Threshold enable */ 696 field DPARCKEN 0x40 /* Data Parity Check Enable */ 697 field MPARCKEN 0x20 /* Memory Parity Check Enable */ 698 field EXTREQLCK 0x10 /* External Request Lock */ 699 /* aic7890/91/96/97 only */ 700 field INTSCBRAMSEL 0x08 /* Internal SCB RAM Select */ 701 field RAMPS 0x04 /* External SCB RAM Present */ 702 field USCBSIZE32 0x02 /* Use 32byte SCB Page Size */ 703 field CIOPARCKEN 0x01 /* Internal bus parity error enable */ 704} 705 706register DSCOMMAND1 { 707 address 0x085 708 access_mode RW 709 mask DSLATT 0xfc /* PCI latency timer (non-ultra2) */ 710 field HADDLDSEL1 0x02 /* Host Address Load Select Bits */ 711 field HADDLDSEL0 0x01 712} 713 714/* 715 * Bus On/Off Time (p. 3-44) aic7770 only 716 */ 717register BUSTIME { 718 address 0x085 719 access_mode RW 720 mask BOFF 0xf0 721 mask BON 0x0f 722} 723 724/* 725 * Bus Speed (p. 3-45) aic7770 only 726 */ 727register BUSSPD { 728 address 0x086 729 access_mode RW 730 mask DFTHRSH 0xc0 731 mask STBOFF 0x38 732 mask STBON 0x07 733 mask DFTHRSH_100 0xc0 734 mask DFTHRSH_75 0x80 735} 736 737/* aic7850/55/60/70/80/95 only */ 738register DSPCISTATUS { 739 address 0x086 740 mask DFTHRSH_100 0xc0 741} 742 743/* aic7890/91/96/97 only */ 744register HS_MAILBOX { 745 address 0x086 746 mask HOST_MAILBOX 0xF0 747 mask SEQ_MAILBOX 0x0F 748 mask HOST_TQINPOS 0x80 /* Boundary at either 0 or 128 */ 749} 750 751const HOST_MAILBOX_SHIFT 4 752const SEQ_MAILBOX_SHIFT 0 753 754/* 755 * Host Control (p. 3-47) R/W 756 * Overall host control of the device. 757 */ 758register HCNTRL { 759 address 0x087 760 access_mode RW 761 field POWRDN 0x40 762 field SWINT 0x10 763 field IRQMS 0x08 764 field PAUSE 0x04 765 field INTEN 0x02 766 field CHIPRST 0x01 767 field CHIPRSTACK 0x01 768} 769 770/* 771 * Host Address (p. 3-48) 772 * This register contains the address of the byte about 773 * to be transferred across the host bus. 774 */ 775register HADDR { 776 address 0x088 777 size 4 778 access_mode RW 779} 780 781register HCNT { 782 address 0x08c 783 size 3 784 access_mode RW 785} 786 787/* 788 * SCB Pointer (p. 3-49) 789 * Gate one of the SCBs into the SCBARRAY window. 790 */ 791register SCBPTR { 792 address 0x090 793 access_mode RW 794} 795 796/* 797 * Interrupt Status (p. 3-50) 798 * Status for system interrupts 799 */ 800register INTSTAT { 801 address 0x091 802 access_mode RW 803 field BRKADRINT 0x08 804 field SCSIINT 0x04 805 field CMDCMPLT 0x02 806 field SEQINT 0x01 807 mask BAD_PHASE SEQINT /* unknown scsi bus phase */ 808 mask SEND_REJECT 0x10|SEQINT /* sending a message reject */ 809 mask PROTO_VIOLATION 0x20|SEQINT /* SCSI protocol violation */ 810 mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */ 811 mask IGN_WIDE_RES 0x40|SEQINT /* Complex IGN Wide Res Msg */ 812 mask PDATA_REINIT 0x50|SEQINT /* 813 * Returned to data phase 814 * that requires data 815 * transfer pointers to be 816 * recalculated from the 817 * transfer residual. 818 */ 819 mask HOST_MSG_LOOP 0x60|SEQINT /* 820 * The bus is ready for the 821 * host to perform another 822 * message transaction. This 823 * mechanism is used for things 824 * like sync/wide negotiation 825 * that require a kernel based 826 * message state engine. 827 */ 828 mask BAD_STATUS 0x70|SEQINT /* Bad status from target */ 829 mask PERR_DETECTED 0x80|SEQINT /* 830 * Either the phase_lock 831 * or inb_next routine has 832 * noticed a parity error. 833 */ 834 mask DATA_OVERRUN 0x90|SEQINT /* 835 * Target attempted to write 836 * beyond the bounds of its 837 * command. 838 */ 839 mask MKMSG_FAILED 0xa0|SEQINT /* 840 * Target completed command 841 * without honoring our ATN 842 * request to issue a message. 843 */ 844 mask MISSED_BUSFREE 0xb0|SEQINT /* 845 * The sequencer never saw 846 * the bus go free after 847 * either a command complete 848 * or disconnect message. 849 */ 850 mask SCB_MISMATCH 0xc0|SEQINT /* 851 * Downloaded SCB's tag does 852 * not match the entry we 853 * intended to download. 854 */ 855 mask NO_FREE_SCB 0xd0|SEQINT /* 856 * get_free_or_disc_scb failed. 857 */ 858 mask OUT_OF_RANGE 0xe0|SEQINT 859 860 mask SEQINT_MASK 0xf0|SEQINT /* SEQINT Status Codes */ 861 mask INT_PEND (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT) 862} 863 864/* 865 * Hard Error (p. 3-53) 866 * Reporting of catastrophic errors. You usually cannot recover from 867 * these without a full board reset. 868 */ 869register ERROR { 870 address 0x092 871 access_mode RO 872 field CIOPARERR 0x80 /* Ultra2 only */ 873 field PCIERRSTAT 0x40 /* PCI only */ 874 field MPARERR 0x20 /* PCI only */ 875 field DPARERR 0x10 /* PCI only */ 876 field SQPARERR 0x08 877 field ILLOPCODE 0x04 878 field ILLSADDR 0x02 879 field ILLHADDR 0x01 880} 881 882/* 883 * Clear Interrupt Status (p. 3-52) 884 */ 885register CLRINT { 886 address 0x092 887 access_mode WO 888 field CLRPARERR 0x10 /* PCI only */ 889 field CLRBRKADRINT 0x08 890 field CLRSCSIINT 0x04 891 field CLRCMDINT 0x02 892 field CLRSEQINT 0x01 893} 894 895register DFCNTRL { 896 address 0x093 897 access_mode RW 898 field PRELOADEN 0x80 /* aic7890 only */ 899 field WIDEODD 0x40 900 field SCSIEN 0x20 901 field SDMAEN 0x10 902 field SDMAENACK 0x10 903 field HDMAEN 0x08 904 field HDMAENACK 0x08 905 field DIRECTION 0x04 906 field FIFOFLUSH 0x02 907 field FIFORESET 0x01 908} 909 910register DFSTATUS { 911 address 0x094 912 access_mode RO 913 field PRELOAD_AVAIL 0x80 914 field DFCACHETH 0x40 915 field FIFOQWDEMP 0x20 916 field MREQPEND 0x10 917 field HDONE 0x08 918 field DFTHRESH 0x04 919 field FIFOFULL 0x02 920 field FIFOEMP 0x01 921} 922 923register DFWADDR { 924 address 0x95 925 access_mode RW 926} 927 928register DFRADDR { 929 address 0x97 930 access_mode RW 931} 932 933register DFDAT { 934 address 0x099 935 access_mode RW 936} 937 938/* 939 * SCB Auto Increment (p. 3-59) 940 * Byte offset into the SCB Array and an optional bit to allow auto 941 * incrementing of the address during download and upload operations 942 */ 943register SCBCNT { 944 address 0x09a 945 access_mode RW 946 field SCBAUTO 0x80 947 mask SCBCNT_MASK 0x1f 948} 949 950/* 951 * Queue In FIFO (p. 3-60) 952 * Input queue for queued SCBs (commands that the seqencer has yet to start) 953 */ 954register QINFIFO { 955 address 0x09b 956 access_mode RW 957} 958 959/* 960 * Queue In Count (p. 3-60) 961 * Number of queued SCBs 962 */ 963register QINCNT { 964 address 0x09c 965 access_mode RO 966} 967 968/* 969 * Queue Out FIFO (p. 3-61) 970 * Queue of SCBs that have completed and await the host 971 */ 972register QOUTFIFO { 973 address 0x09d 974 access_mode WO 975} 976 977register CRCCONTROL1 { 978 address 0x09d 979 access_mode RW 980 field CRCONSEEN 0x80 981 field CRCVALCHKEN 0x40 982 field CRCENDCHKEN 0x20 983 field CRCREQCHKEN 0x10 984 field TARGCRCENDEN 0x08 985 field TARGCRCCNTEN 0x04 986} 987 988 989/* 990 * Queue Out Count (p. 3-61) 991 * Number of queued SCBs in the Out FIFO 992 */ 993register QOUTCNT { 994 address 0x09e 995 access_mode RO 996} 997 998register SCSIPHASE { 999 address 0x09e 1000 access_mode RO 1001 field STATUS_PHASE 0x20 1002 field COMMAND_PHASE 0x10 1003 field MSG_IN_PHASE 0x08 1004 field MSG_OUT_PHASE 0x04 1005 field DATA_IN_PHASE 0x02 1006 field DATA_OUT_PHASE 0x01 1007 mask DATA_PHASE_MASK 0x03 1008} 1009 1010/* 1011 * Special Function 1012 */ 1013register SFUNCT { 1014 address 0x09f 1015 access_mode RW 1016 field ALT_MODE 0x80 1017} 1018 1019/* 1020 * SCB Definition (p. 5-4) 1021 */ 1022scb { 1023 address 0x0a0 1024 size 64 1025 1026 SCB_CDB_PTR { 1027 size 4 1028 alias SCB_RESIDUAL_DATACNT 1029 alias SCB_CDB_STORE 1030 } 1031 SCB_RESIDUAL_SGPTR { 1032 size 4 1033 } 1034 SCB_SCSI_STATUS { 1035 size 1 1036 } 1037 SCB_TARGET_PHASES { 1038 size 1 1039 } 1040 SCB_TARGET_DATA_DIR { 1041 size 1 1042 } 1043 SCB_TARGET_ITAG { 1044 size 1 1045 } 1046 SCB_DATAPTR { 1047 size 4 1048 } 1049 SCB_DATACNT { 1050 /* 1051 * The last byte is really the high address bits for 1052 * the data address. 1053 */ 1054 size 4 1055 field SG_LAST_SEG 0x80 /* In the fourth byte */ 1056 mask SG_HIGH_ADDR_BITS 0x7F /* In the fourth byte */ 1057 } 1058 SCB_SGPTR { 1059 size 4 1060 field SG_RESID_VALID 0x04 /* In the first byte */ 1061 field SG_FULL_RESID 0x02 /* In the first byte */ 1062 field SG_LIST_NULL 0x01 /* In the first byte */ 1063 } 1064 SCB_CONTROL { 1065 size 1 1066 field TARGET_SCB 0x80 1067 field STATUS_RCVD 0x80 1068 field DISCENB 0x40 1069 field TAG_ENB 0x20 1070 field MK_MESSAGE 0x10 1071 field ULTRAENB 0x08 1072 field DISCONNECTED 0x04 1073 mask SCB_TAG_TYPE 0x03 1074 } 1075 SCB_SCSIID { 1076 size 1 1077 field TWIN_CHNLB 0x80 1078 mask TWIN_TID 0x70 1079 mask TID 0xf0 1080 mask OID 0x0f 1081 } 1082 SCB_LUN { 1083 field SCB_XFERLEN_ODD 0x80 1084 mask LID 0x3f 1085 size 1 1086 } 1087 SCB_TAG { 1088 size 1 1089 } 1090 SCB_CDB_LEN { 1091 size 1 1092 } 1093 SCB_SCSIRATE { 1094 size 1 1095 } 1096 SCB_SCSIOFFSET { 1097 size 1 1098 } 1099 SCB_NEXT { 1100 size 1 1101 } 1102 SCB_64_SPARE { 1103 size 16 1104 } 1105 SCB_64_BTT { 1106 size 16 1107 } 1108} 1109 1110const SCB_UPLOAD_SIZE 32 1111const SCB_DOWNLOAD_SIZE 32 1112const SCB_DOWNLOAD_SIZE_64 48 1113 1114const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */ 1115 1116/* --------------------- AHA-2840-only definitions -------------------- */ 1117 1118register SEECTL_2840 { 1119 address 0x0c0 1120 access_mode RW 1121 field CS_2840 0x04 1122 field CK_2840 0x02 1123 field DO_2840 0x01 1124} 1125 1126register STATUS_2840 { 1127 address 0x0c1 1128 access_mode RW 1129 field EEPROM_TF 0x80 1130 mask BIOS_SEL 0x60 1131 mask ADSEL 0x1e 1132 field DI_2840 0x01 1133} 1134 1135/* --------------------- AIC-7870-only definitions -------------------- */ 1136 1137register CCHADDR { 1138 address 0x0E0 1139 size 8 1140} 1141 1142register CCHCNT { 1143 address 0x0E8 1144} 1145 1146register CCSGRAM { 1147 address 0x0E9 1148} 1149 1150register CCSGADDR { 1151 address 0x0EA 1152} 1153 1154register CCSGCTL { 1155 address 0x0EB 1156 field CCSGDONE 0x80 1157 field CCSGEN 0x08 1158 field SG_FETCH_NEEDED 0x02 /* Bit used for software state */ 1159 field CCSGRESET 0x01 1160} 1161 1162register CCSCBCNT { 1163 address 0xEF 1164} 1165 1166register CCSCBCTL { 1167 address 0x0EE 1168 field CCSCBDONE 0x80 1169 field ARRDONE 0x40 /* SCB Array prefetch done */ 1170 field CCARREN 0x10 1171 field CCSCBEN 0x08 1172 field CCSCBDIR 0x04 1173 field CCSCBRESET 0x01 1174} 1175 1176register CCSCBADDR { 1177 address 0x0ED 1178} 1179 1180register CCSCBRAM { 1181 address 0xEC 1182} 1183 1184/* 1185 * SCB bank address (7895/7896/97 only) 1186 */ 1187register SCBBADDR { 1188 address 0x0F0 1189 access_mode RW 1190} 1191 1192register CCSCBPTR { 1193 address 0x0F1 1194} 1195 1196register HNSCB_QOFF { 1197 address 0x0F4 1198} 1199 1200register SNSCB_QOFF { 1201 address 0x0F6 1202} 1203 1204register SDSCB_QOFF { 1205 address 0x0F8 1206} 1207 1208register QOFF_CTLSTA { 1209 address 0x0FA 1210 field SCB_AVAIL 0x40 1211 field SNSCB_ROLLOVER 0x20 1212 field SDSCB_ROLLOVER 0x10 1213 mask SCB_QSIZE 0x07 1214 mask SCB_QSIZE_256 0x06 1215} 1216 1217register DFF_THRSH { 1218 address 0x0FB 1219 mask WR_DFTHRSH 0x70 1220 mask RD_DFTHRSH 0x07 1221 mask RD_DFTHRSH_MIN 0x00 1222 mask RD_DFTHRSH_25 0x01 1223 mask RD_DFTHRSH_50 0x02 1224 mask RD_DFTHRSH_63 0x03 1225 mask RD_DFTHRSH_75 0x04 1226 mask RD_DFTHRSH_85 0x05 1227 mask RD_DFTHRSH_90 0x06 1228 mask RD_DFTHRSH_MAX 0x07 1229 mask WR_DFTHRSH_MIN 0x00 1230 mask WR_DFTHRSH_25 0x10 1231 mask WR_DFTHRSH_50 0x20 1232 mask WR_DFTHRSH_63 0x30 1233 mask WR_DFTHRSH_75 0x40 1234 mask WR_DFTHRSH_85 0x50 1235 mask WR_DFTHRSH_90 0x60 1236 mask WR_DFTHRSH_MAX 0x70 1237} 1238 1239register SG_CACHE_PRE { 1240 access_mode WO 1241 address 0x0fc 1242 mask SG_ADDR_MASK 0xf8 1243 field LAST_SEG 0x02 1244 field LAST_SEG_DONE 0x01 1245} 1246 1247register SG_CACHE_SHADOW { 1248 access_mode RO 1249 address 0x0fc 1250 mask SG_ADDR_MASK 0xf8 1251 field LAST_SEG 0x02 1252 field LAST_SEG_DONE 0x01 1253} 1254/* ---------------------- Scratch RAM Offsets ------------------------- */ 1255/* These offsets are either to values that are initialized by the board's 1256 * BIOS or are specified by the sequencer code. 1257 * 1258 * The host adapter card (at least the BIOS) uses 20-2f for SCSI 1259 * device information, 32-33 and 5a-5f as well. As it turns out, the 1260 * BIOS trashes 20-2f, writing the synchronous negotiation results 1261 * on top of the BIOS values, so we re-use those for our per-target 1262 * scratchspace (actually a value that can be copied directly into 1263 * SCSIRATE). The kernel driver will enable synchronous negotiation 1264 * for all targets that have a value other than 0 in the lower four 1265 * bits of the target scratch space. This should work regardless of 1266 * whether the bios has been installed. 1267 */ 1268 1269scratch_ram { 1270 address 0x020 1271 size 58 1272 1273 /* 1274 * 1 byte per target starting at this address for configuration values 1275 */ 1276 BUSY_TARGETS { 1277 alias TARG_SCSIRATE 1278 size 16 1279 } 1280 /* 1281 * Bit vector of targets that have ULTRA enabled as set by 1282 * the BIOS. The Sequencer relies on a per-SCB field to 1283 * control whether to enable Ultra transfers or not. During 1284 * initialization, we read this field and reuse it for 2 1285 * entries in the busy target table. 1286 */ 1287 ULTRA_ENB { 1288 alias CMDSIZE_TABLE 1289 size 2 1290 } 1291 /* 1292 * Bit vector of targets that have disconnection disabled as set by 1293 * the BIOS. The Sequencer relies in a per-SCB field to control the 1294 * disconnect priveldge. During initialization, we read this field 1295 * and reuse it for 2 entries in the busy target table. 1296 */ 1297 DISC_DSB { 1298 size 2 1299 } 1300 CMDSIZE_TABLE_TAIL { 1301 size 4 1302 } 1303 /* 1304 * Partial transfer past cacheline end to be 1305 * transferred using an extra S/G. 1306 */ 1307 MWI_RESIDUAL { 1308 size 1 1309 } 1310 /* 1311 * SCBID of the next SCB to be started by the controller. 1312 */ 1313 NEXT_QUEUED_SCB { 1314 size 1 1315 } 1316 /* 1317 * Single byte buffer used to designate the type or message 1318 * to send to a target. 1319 */ 1320 MSG_OUT { 1321 size 1 1322 } 1323 /* Parameters for DMA Logic */ 1324 DMAPARAMS { 1325 size 1 1326 field PRELOADEN 0x80 1327 field WIDEODD 0x40 1328 field SCSIEN 0x20 1329 field SDMAEN 0x10 1330 field SDMAENACK 0x10 1331 field HDMAEN 0x08 1332 field HDMAENACK 0x08 1333 field DIRECTION 0x04 /* Set indicates PCI->SCSI */ 1334 field FIFOFLUSH 0x02 1335 field FIFORESET 0x01 1336 } 1337 SEQ_FLAGS { 1338 size 1 1339 field NOT_IDENTIFIED 0x80 1340 field NO_CDB_SENT 0x40 1341 field TARGET_CMD_IS_TAGGED 0x40 1342 field DPHASE 0x20 1343 /* Target flags */ 1344 field TARG_CMD_PENDING 0x10 1345 field CMDPHASE_PENDING 0x08 1346 field DPHASE_PENDING 0x04 1347 field SPHASE_PENDING 0x02 1348 field NO_DISCONNECT 0x01 1349 } 1350 /* 1351 * Temporary storage for the 1352 * target/channel/lun of a 1353 * reconnecting target 1354 */ 1355 SAVED_SCSIID { 1356 size 1 1357 } 1358 SAVED_LUN { 1359 size 1 1360 } 1361 /* 1362 * The last bus phase as seen by the sequencer. 1363 */ 1364 LASTPHASE { 1365 size 1 1366 field CDI 0x80 1367 field IOI 0x40 1368 field MSGI 0x20 1369 mask PHASE_MASK CDI|IOI|MSGI 1370 mask P_DATAOUT 0x00 1371 mask P_DATAIN IOI 1372 mask P_COMMAND CDI 1373 mask P_MESGOUT CDI|MSGI 1374 mask P_STATUS CDI|IOI 1375 mask P_MESGIN CDI|IOI|MSGI 1376 mask P_BUSFREE 0x01 1377 } 1378 /* 1379 * head of list of SCBs awaiting 1380 * selection 1381 */ 1382 WAITING_SCBH { 1383 size 1 1384 } 1385 /* 1386 * head of list of SCBs that are 1387 * disconnected. Used for SCB 1388 * paging. 1389 */ 1390 DISCONNECTED_SCBH { 1391 size 1 1392 } 1393 /* 1394 * head of list of SCBs that are 1395 * not in use. Used for SCB paging. 1396 */ 1397 FREE_SCBH { 1398 size 1 1399 } 1400 /* 1401 * head of list of SCBs that have 1402 * completed but have not been 1403 * put into the qoutfifo. 1404 */ 1405 COMPLETE_SCBH { 1406 size 1 1407 } 1408 /* 1409 * Address of the hardware scb array in the host. 1410 */ 1411 HSCB_ADDR { 1412 size 4 1413 } 1414 /* 1415 * Base address of our shared data with the kernel driver in host 1416 * memory. This includes the qoutfifo and target mode 1417 * incoming command queue. 1418 */ 1419 SHARED_DATA_ADDR { 1420 size 4 1421 } 1422 KERNEL_QINPOS { 1423 size 1 1424 } 1425 QINPOS { 1426 size 1 1427 } 1428 QOUTPOS { 1429 size 1 1430 } 1431 /* 1432 * Kernel and sequencer offsets into the queue of 1433 * incoming target mode command descriptors. The 1434 * queue is full when the KERNEL_TQINPOS == TQINPOS. 1435 */ 1436 KERNEL_TQINPOS { 1437 size 1 1438 } 1439 TQINPOS { 1440 size 1 1441 } 1442 ARG_1 { 1443 size 1 1444 mask SEND_MSG 0x80 1445 mask SEND_SENSE 0x40 1446 mask SEND_REJ 0x20 1447 mask MSGOUT_PHASEMIS 0x10 1448 mask EXIT_MSG_LOOP 0x08 1449 mask CONT_MSG_LOOP 0x04 1450 mask CONT_TARG_SESSION 0x02 1451 mask SPARE 0x01 1452 alias RETURN_1 1453 } 1454 ARG_2 { 1455 size 1 1456 alias RETURN_2 1457 } 1458 1459 /* 1460 * Snapshot of MSG_OUT taken after each message is sent. 1461 */ 1462 LAST_MSG { 1463 size 1 1464 alias TARG_IMMEDIATE_SCB 1465 } 1466 1467 /* 1468 * Sequences the kernel driver has okayed for us. This allows 1469 * the driver to do things like prevent initiator or target 1470 * operations. 1471 */ 1472 SCSISEQ_TEMPLATE { 1473 size 1 1474 field ENSELO 0x40 1475 field ENSELI 0x20 1476 field ENRSELI 0x10 1477 field ENAUTOATNO 0x08 1478 field ENAUTOATNI 0x04 1479 field ENAUTOATNP 0x02 1480 } 1481} 1482 1483scratch_ram { 1484 address 0x056 1485 size 4 1486 /* 1487 * These scratch ram locations are initialized by the 274X BIOS. 1488 * We reuse them after capturing the BIOS settings during 1489 * initialization. 1490 */ 1491 1492 /* 1493 * The initiator specified tag for this target mode transaction. 1494 */ 1495 HA_274_BIOSGLOBAL { 1496 size 1 1497 field HA_274_EXTENDED_TRANS 0x01 1498 alias INITIATOR_TAG 1499 } 1500 1501 SEQ_FLAGS2 { 1502 size 1 1503 field SCB_DMA 0x01 1504 field TARGET_MSG_PENDING 0x02 1505 } 1506} 1507 1508scratch_ram { 1509 address 0x05a 1510 size 6 1511 /* 1512 * These are reserved registers in the card's scratch ram on the 2742. 1513 * The EISA configuration chip is mapped here. On Rev E. of the 1514 * aic7770, the sequencer can use this area for scratch, but the 1515 * host cannot directly access these registers. On later chips, this 1516 * area can be read and written by both the host and the sequencer. 1517 * Even on later chips, many of these locations are initialized by 1518 * the BIOS. 1519 */ 1520 SCSICONF { 1521 size 1 1522 field TERM_ENB 0x80 1523 field RESET_SCSI 0x40 1524 field ENSPCHK 0x20 1525 mask HSCSIID 0x07 /* our SCSI ID */ 1526 mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */ 1527 } 1528 INTDEF { 1529 address 0x05c 1530 size 1 1531 field EDGE_TRIG 0x80 1532 mask VECTOR 0x0f 1533 } 1534 HOSTCONF { 1535 address 0x05d 1536 size 1 1537 } 1538 HA_274_BIOSCTRL { 1539 address 0x05f 1540 size 1 1541 mask BIOSMODE 0x30 1542 mask BIOSDISABLED 0x30 1543 field CHANNEL_B_PRIMARY 0x08 1544 } 1545} 1546 1547scratch_ram { 1548 address 0x070 1549 size 16 1550 1551 /* 1552 * Per target SCSI offset values for Ultra2 controllers. 1553 */ 1554 TARG_OFFSET { 1555 size 16 1556 } 1557} 1558 1559const TID_SHIFT 4 1560const SCB_LIST_NULL 0xff 1561const TARGET_CMD_CMPLT 0xfe 1562 1563const CCSGADDR_MAX 0x80 1564const CCSGRAM_MAXSEGS 16 1565 1566/* WDTR Message values */ 1567const BUS_8_BIT 0x00 1568const BUS_16_BIT 0x01 1569const BUS_32_BIT 0x02 1570 1571/* Offset maximums */ 1572const MAX_OFFSET_8BIT 0x0f 1573const MAX_OFFSET_16BIT 0x08 1574const MAX_OFFSET_ULTRA2 0x7f 1575const MAX_OFFSET 0x7f 1576const HOST_MSG 0xff 1577 1578/* Target mode command processing constants */ 1579const CMD_GROUP_CODE_SHIFT 0x05 1580 1581const STATUS_BUSY 0x08 1582const STATUS_QUEUE_FULL 0x28 1583const TARGET_DATA_IN 1 1584 1585/* 1586 * Downloaded (kernel inserted) constants 1587 */ 1588/* Offsets into the SCBID array where different data is stored */ 1589const QOUTFIFO_OFFSET download 1590const QINFIFO_OFFSET download 1591const CACHESIZE_MASK download 1592const INVERTED_CACHESIZE_MASK download 1593const SG_PREFETCH_CNT download 1594const SG_PREFETCH_ALIGN_MASK download 1595const SG_PREFETCH_ADDR_MASK download 1596