1/* 2 * Aic7xxx register and scratch ram definitions. 3 * 4 * Copyright (c) 1994-2000 Justin Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * Alternatively, this software may be distributed under the terms of the 17 * GNU Public License ("GPL"). 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 *
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31 * $FreeBSD: head/sys/dev/aic7xxx/aic7xxx.reg 63457 2000-07-18 20:12:14Z gibbs $
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31 * $FreeBSD: head/sys/dev/aic7xxx/aic7xxx.reg 63944 2000-07-27 23:17:52Z gibbs $ |
32 */ 33 34/* 35 * This file is processed by the aic7xxx_asm utility for use in assembling 36 * firmware for the aic7xxx family of SCSI host adapters as well as to generate 37 * a C header file for use in the kernel portion of the Aic7xxx driver. 38 * 39 * All page numbers refer to the Adaptec AIC-7770 Data Book available from 40 * Adaptec's Technical Documents Department 1-800-934-2766 41 */ 42 43/* 44 * SCSI Sequence Control (p. 3-11). 45 * Each bit, when set starts a specific SCSI sequence on the bus 46 */ 47register SCSISEQ { 48 address 0x000 49 access_mode RW 50 bit TEMODE 0x80 51 bit ENSELO 0x40 52 bit ENSELI 0x20 53 bit ENRSELI 0x10 54 bit ENAUTOATNO 0x08 55 bit ENAUTOATNI 0x04 56 bit ENAUTOATNP 0x02 57 bit SCSIRSTO 0x01 58} 59 60/* 61 * SCSI Transfer Control 0 Register (pp. 3-13). 62 * Controls the SCSI module data path. 63 */ 64register SXFRCTL0 { 65 address 0x001 66 access_mode RW 67 bit DFON 0x80 68 bit DFPEXP 0x40 69 bit FAST20 0x20 70 bit CLRSTCNT 0x10 71 bit SPIOEN 0x08 72 bit SCAMEN 0x04 73 bit CLRCHN 0x02 74} 75 76/* 77 * SCSI Transfer Control 1 Register (pp. 3-14,15). 78 * Controls the SCSI module data path. 79 */ 80register SXFRCTL1 { 81 address 0x002 82 access_mode RW 83 bit BITBUCKET 0x80 84 bit SWRAPEN 0x40 85 bit ENSPCHK 0x20 86 mask STIMESEL 0x18 87 bit ENSTIMER 0x04 88 bit ACTNEGEN 0x02 89 bit STPWEN 0x01 /* Powered Termination */ 90} 91 92/* 93 * SCSI Control Signal Read Register (p. 3-15). 94 * Reads the actual state of the SCSI bus pins 95 */ 96register SCSISIGI { 97 address 0x003 98 access_mode RO 99 bit CDI 0x80 100 bit IOI 0x40 101 bit MSGI 0x20 102 bit ATNI 0x10 103 bit SELI 0x08 104 bit BSYI 0x04 105 bit REQI 0x02 106 bit ACKI 0x01 107/* 108 * Possible phases in SCSISIGI 109 */ 110 mask PHASE_MASK CDI|IOI|MSGI 111 mask P_DATAOUT 0x00 112 mask P_DATAIN IOI 113 mask P_COMMAND CDI 114 mask P_MESGOUT CDI|MSGI 115 mask P_STATUS CDI|IOI 116 mask P_MESGIN CDI|IOI|MSGI 117} 118 119/* 120 * SCSI Control Signal Write Register (p. 3-16). 121 * Writing to this register modifies the control signals on the bus. Only 122 * those signals that are allowed in the current mode (Initiator/Target) are 123 * asserted. 124 */ 125register SCSISIGO { 126 address 0x003 127 access_mode WO 128 bit CDO 0x80 129 bit IOO 0x40 130 bit MSGO 0x20 131 bit ATNO 0x10 132 bit SELO 0x08 133 bit BSYO 0x04 134 bit REQO 0x02 135 bit ACKO 0x01 136/* 137 * Possible phases to write into SCSISIG0 138 */ 139 mask PHASE_MASK CDI|IOI|MSGI 140 mask P_DATAOUT 0x00 141 mask P_DATAIN IOI 142 mask P_COMMAND CDI 143 mask P_MESGOUT CDI|MSGI 144 mask P_STATUS CDI|IOI 145 mask P_MESGIN CDI|IOI|MSGI 146} 147 148/* 149 * SCSI Rate Control (p. 3-17). 150 * Contents of this register determine the Synchronous SCSI data transfer 151 * rate and the maximum synchronous Req/Ack offset. An offset of 0 in the 152 * SOFS (3:0) bits disables synchronous data transfers. Any offset value 153 * greater than 0 enables synchronous transfers. 154 */ 155register SCSIRATE { 156 address 0x004 157 access_mode RW 158 bit WIDEXFER 0x80 /* Wide transfer control */ 159 bit ENABLE_CRC 0x40 /* CRC for D-Phases */ 160 bit SINGLE_EDGE 0x10 /* Disable DT Transfers */ 161 mask SXFR 0x70 /* Sync transfer rate */ 162 mask SXFR_ULTRA2 0x0f /* Sync transfer rate */ 163 mask SOFS 0x0f /* Sync offset */ 164} 165 166/* 167 * SCSI ID (p. 3-18). 168 * Contains the ID of the board and the current target on the 169 * selected channel. 170 */ 171register SCSIID { 172 address 0x005 173 access_mode RW 174 mask TID 0xf0 /* Target ID mask */ 175 mask TWIN_TID 0x70 176 bit TWIN_CHNLB 0x80 177 mask OID 0x0f /* Our ID mask */ 178 /* 179 * SCSI Maximum Offset (p. 4-61 aic7890/91 Data Book) 180 * The aic7890/91 allow an offset of up to 127 transfers in both wide 181 * and narrow mode. 182 */ 183 alias SCSIOFFSET 184 mask SOFS_ULTRA2 0x7f /* Sync offset U2 chips */ 185} 186 187/* 188 * SCSI Latched Data (p. 3-19). 189 * Read/Write latches used to transfer data on the SCSI bus during 190 * Automatic or Manual PIO mode. SCSIDATH can be used for the 191 * upper byte of a 16bit wide asynchronouse data phase transfer. 192 */ 193register SCSIDATL { 194 address 0x006 195 access_mode RW 196} 197 198register SCSIDATH { 199 address 0x007 200 access_mode RW 201} 202 203/* 204 * SCSI Transfer Count (pp. 3-19,20) 205 * These registers count down the number of bytes transferred 206 * across the SCSI bus. The counter is decremented only once 207 * the data has been safely transferred. SDONE in SSTAT0 is 208 * set when STCNT goes to 0 209 */ 210register STCNT { 211 address 0x008 212 size 3 213 access_mode RW 214} 215 216/* ALT_MODE register on Ultra160 chips */ 217register OPTIONMODE { 218 address 0x008 219 access_mode RW 220 bit AUTORATEEN 0x80 221 bit AUTOACKEN 0x40 222 bit ATNMGMNTEN 0x20 223 bit BUSFREEREV 0x10 224 bit EXPPHASEDIS 0x08 225 bit SCSIDATL_IMGEN 0x04 226 bit AUTO_MSGOUT_DE 0x02 227 bit DIS_MSGIN_DUALEDGE 0x01 228 mask OPTIONMODE_DEFAULTS AUTO_MSGOUT_DE|DIS_MSGIN_DUALEDGE 229} 230 231/* ALT_MODE register on Ultra160 chips */ 232register TARGCRCCNT { 233 address 0x00a 234 size 2 235 access_mode RW 236} 237 238/* 239 * Clear SCSI Interrupt 0 (p. 3-20) 240 * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT0. 241 */ 242register CLRSINT0 { 243 address 0x00b 244 access_mode WO 245 bit CLRSELDO 0x40 246 bit CLRSELDI 0x20 247 bit CLRSELINGO 0x10 248 bit CLRSWRAP 0x08 249 bit CLRSPIORDY 0x02 250} 251 252/* 253 * SCSI Status 0 (p. 3-21) 254 * Contains one set of SCSI Interrupt codes 255 * These are most likely of interest to the sequencer 256 */ 257register SSTAT0 { 258 address 0x00b 259 access_mode RO 260 bit TARGET 0x80 /* Board acting as target */ 261 bit SELDO 0x40 /* Selection Done */ 262 bit SELDI 0x20 /* Board has been selected */ 263 bit SELINGO 0x10 /* Selection In Progress */ 264 bit SWRAP 0x08 /* 24bit counter wrap */ 265 bit IOERR 0x08 /* LVD Tranceiver mode changed */ 266 bit SDONE 0x04 /* STCNT = 0x000000 */ 267 bit SPIORDY 0x02 /* SCSI PIO Ready */ 268 bit DMADONE 0x01 /* DMA transfer completed */ 269} 270 271/* 272 * Clear SCSI Interrupt 1 (p. 3-23) 273 * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT1. 274 */ 275register CLRSINT1 { 276 address 0x00c 277 access_mode WO 278 bit CLRSELTIMEO 0x80 279 bit CLRATNO 0x40 280 bit CLRSCSIRSTI 0x20 281 bit CLRBUSFREE 0x08 282 bit CLRSCSIPERR 0x04 283 bit CLRPHASECHG 0x02 284 bit CLRREQINIT 0x01 285} 286 287/* 288 * SCSI Status 1 (p. 3-24) 289 */ 290register SSTAT1 { 291 address 0x00c 292 access_mode RO 293 bit SELTO 0x80 294 bit ATNTARG 0x40 295 bit SCSIRSTI 0x20 296 bit PHASEMIS 0x10 297 bit BUSFREE 0x08 298 bit SCSIPERR 0x04 299 bit PHASECHG 0x02 300 bit REQINIT 0x01 301} 302 303/* 304 * SCSI Status 2 (pp. 3-25,26) 305 */ 306register SSTAT2 { 307 address 0x00d 308 access_mode RO 309 bit OVERRUN 0x80
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310 bit SHVALID 0x40 /* Shaddow Layer non-zero */ |
311 bit EXP_ACTIVE 0x10 /* SCSI Expander Active */ 312 mask SFCNT 0x1f 313} 314 315/* 316 * SCSI Status 3 (p. 3-26) 317 */ 318register SSTAT3 { 319 address 0x00e 320 access_mode RO 321 mask SCSICNT 0xf0 322 mask OFFCNT 0x0f 323} 324 325/* 326 * SCSI ID for the aic7890/91 chips 327 */ 328register SCSIID_ULTRA2 { 329 address 0x00f 330 access_mode RW 331 mask TID 0xf0 /* Target ID mask */ 332 mask OID 0x0f /* Our ID mask */ 333} 334 335/* 336 * SCSI Interrupt Mode 1 (p. 3-28) 337 * Setting any bit will enable the corresponding function 338 * in SIMODE0 to interrupt via the IRQ pin. 339 */ 340register SIMODE0 { 341 address 0x010 342 access_mode RW 343 bit ENSELDO 0x40 344 bit ENSELDI 0x20 345 bit ENSELINGO 0x10 346 bit ENSWRAP 0x08 347 bit ENIOERR 0x08 /* LVD Tranceiver mode changes */ 348 bit ENSDONE 0x04 349 bit ENSPIORDY 0x02 350 bit ENDMADONE 0x01 351} 352 353/* 354 * SCSI Interrupt Mode 1 (pp. 3-28,29) 355 * Setting any bit will enable the corresponding function 356 * in SIMODE1 to interrupt via the IRQ pin. 357 */ 358register SIMODE1 { 359 address 0x011 360 access_mode RW 361 bit ENSELTIMO 0x80 362 bit ENATNTARG 0x40 363 bit ENSCSIRST 0x20 364 bit ENPHASEMIS 0x10 365 bit ENBUSFREE 0x08 366 bit ENSCSIPERR 0x04 367 bit ENPHASECHG 0x02 368 bit ENREQINIT 0x01 369} 370 371/* 372 * SCSI Data Bus (High) (p. 3-29) 373 * This register reads data on the SCSI Data bus directly. 374 */ 375register SCSIBUSL { 376 address 0x012 377 access_mode RO 378} 379 380register SCSIBUSH { 381 address 0x013 382 access_mode RO 383} 384 385/* 386 * SCSI/Host Address (p. 3-30) 387 * These registers hold the host address for the byte about to be 388 * transferred on the SCSI bus. They are counted up in the same 389 * manner as STCNT is counted down. SHADDR should always be used 390 * to determine the address of the last byte transferred since HADDR 391 * can be skewed by write ahead. 392 */ 393register SHADDR { 394 address 0x014 395 size 4 396 access_mode RO 397} 398 399/* 400 * Selection Timeout Timer (p. 3-30) 401 */ 402register SELTIMER { 403 address 0x018 404 access_mode RW 405 bit STAGE6 0x20 406 bit STAGE5 0x10 407 bit STAGE4 0x08 408 bit STAGE3 0x04 409 bit STAGE2 0x02 410 bit STAGE1 0x01 411 alias TARGIDIN 412} 413 414/* 415 * Selection/Reselection ID (p. 3-31) 416 * Upper four bits are the device id. The ONEBIT is set when the re/selecting 417 * device did not set its own ID. 418 */ 419register SELID { 420 address 0x019 421 access_mode RW 422 mask SELID_MASK 0xf0 423 bit ONEBIT 0x08 424} 425 426register SCAMCTL { 427 address 0x01a 428 access_mode RW 429 bit ENSCAMSELO 0x80 430 bit CLRSCAMSELID 0x40 431 bit ALTSTIM 0x20 432 bit DFLTTID 0x10 433 mask SCAMLVL 0x03 434} 435 436/* 437 * Target Mode Selecting in ID bitmask (aic7890/91/96/97) 438 */ 439register TARGID { 440 address 0x01b 441 size 2 442 access_mode RW 443} 444 445/* 446 * Serial Port I/O Cabability register (p. 4-95 aic7860 Data Book) 447 * Indicates if external logic has been attached to the chip to 448 * perform the tasks of accessing a serial eeprom, testing termination 449 * strength, and performing cable detection. On the aic7860, most of 450 * these features are handled on chip, but on the aic7855 an attached 451 * aic3800 does the grunt work. 452 */ 453register SPIOCAP { 454 address 0x01b 455 access_mode RW 456 bit SOFT1 0x80 457 bit SOFT0 0x40 458 bit SOFTCMDEN 0x20 459 bit HAS_BRDCTL 0x10 /* External Board control */ 460 bit SEEPROM 0x08 /* External serial eeprom logic */ 461 bit EEPROM 0x04 /* Writable external BIOS ROM */ 462 bit ROM 0x02 /* Logic for accessing external ROM */ 463 bit SSPIOCPS 0x01 /* Termination and cable detection */ 464} 465 466register BRDCTL { 467 address 0x01d 468 bit BRDDAT7 0x80 469 bit BRDDAT6 0x40 470 bit BRDDAT5 0x20 471 bit BRDSTB 0x10 472 bit BRDCS 0x08 473 bit BRDRW 0x04 474 bit BRDCTL1 0x02 475 bit BRDCTL0 0x01 476 /* 7890 Definitions */ 477 bit BRDDAT4 0x10 478 bit BRDDAT3 0x08 479 bit BRDDAT2 0x04 480 bit BRDRW_ULTRA2 0x02 481 bit BRDSTB_ULTRA2 0x01 482} 483 484/* 485 * Serial EEPROM Control (p. 4-92 in 7870 Databook) 486 * Controls the reading and writing of an external serial 1-bit 487 * EEPROM Device. In order to access the serial EEPROM, you must 488 * first set the SEEMS bit that generates a request to the memory 489 * port for access to the serial EEPROM device. When the memory 490 * port is not busy servicing another request, it reconfigures 491 * to allow access to the serial EEPROM. When this happens, SEERDY 492 * gets set high to verify that the memory port access has been 493 * granted. 494 * 495 * After successful arbitration for the memory port, the SEECS bit of 496 * the SEECTL register is connected to the chip select. The SEECK, 497 * SEEDO, and SEEDI are connected to the clock, data out, and data in 498 * lines respectively. The SEERDY bit of SEECTL is useful in that it 499 * gives us an 800 nsec timer. After a write to the SEECTL register, 500 * the SEERDY goes high 800 nsec later. The one exception to this is 501 * when we first request access to the memory port. The SEERDY goes 502 * high to signify that access has been granted and, for this case, has 503 * no implied timing. 504 * 505 * See 93cx6.c for detailed information on the protocol necessary to 506 * read the serial EEPROM. 507 */ 508register SEECTL { 509 address 0x01e 510 bit EXTARBACK 0x80 511 bit EXTARBREQ 0x40 512 bit SEEMS 0x20 513 bit SEERDY 0x10 514 bit SEECS 0x08 515 bit SEECK 0x04 516 bit SEEDO 0x02 517 bit SEEDI 0x01 518} 519/* 520 * SCSI Block Control (p. 3-32) 521 * Controls Bus type and channel selection. In a twin channel configuration 522 * addresses 0x00-0x1e are gated to the appropriate channel based on this 523 * register. SELWIDE allows for the coexistence of 8bit and 16bit devices 524 * on a wide bus. 525 */ 526register SBLKCTL { 527 address 0x01f 528 access_mode RW 529 bit DIAGLEDEN 0x80 /* Aic78X0 only */ 530 bit DIAGLEDON 0x40 /* Aic78X0 only */ 531 bit AUTOFLUSHDIS 0x20 532 bit SELBUSB 0x08 533 bit ENAB40 0x08 /* LVD transceiver active */ 534 bit ENAB20 0x04 /* SE/HVD transceiver active */ 535 bit SELWIDE 0x02 536 bit XCVR 0x01 /* External transceiver active */ 537} 538 539/* 540 * Sequencer Control (p. 3-33) 541 * Error detection mode and speed configuration 542 */ 543register SEQCTL { 544 address 0x060 545 access_mode RW 546 bit PERRORDIS 0x80 547 bit PAUSEDIS 0x40 548 bit FAILDIS 0x20 549 bit FASTMODE 0x10 550 bit BRKADRINTEN 0x08 551 bit STEP 0x04 552 bit SEQRESET 0x02 553 bit LOADRAM 0x01 554} 555 556/* 557 * Sequencer RAM Data (p. 3-34) 558 * Single byte window into the Scratch Ram area starting at the address 559 * specified by SEQADDR0 and SEQADDR1. To write a full word, simply write 560 * four bytes in succession. The SEQADDRs will increment after the most 561 * significant byte is written 562 */ 563register SEQRAM { 564 address 0x061 565 access_mode RW 566} 567 568/* 569 * Sequencer Address Registers (p. 3-35) 570 * Only the first bit of SEQADDR1 holds addressing information 571 */ 572register SEQADDR0 { 573 address 0x062 574 access_mode RW 575} 576 577register SEQADDR1 { 578 address 0x063 579 access_mode RW 580 mask SEQADDR1_MASK 0x01 581} 582 583/* 584 * Accumulator 585 * We cheat by passing arguments in the Accumulator up to the kernel driver 586 */ 587register ACCUM { 588 address 0x064 589 access_mode RW 590 accumulator 591} 592 593register SINDEX { 594 address 0x065 595 access_mode RW 596 sindex 597} 598 599register DINDEX { 600 address 0x066 601 access_mode RW 602} 603 604register ALLONES { 605 address 0x069 606 access_mode RO 607 allones 608} 609 610register ALLZEROS { 611 address 0x06a 612 access_mode RO 613 allzeros 614} 615 616register NONE { 617 address 0x06a 618 access_mode WO 619 none 620} 621 622register FLAGS { 623 address 0x06b 624 access_mode RO 625 bit ZERO 0x02 626 bit CARRY 0x01 627} 628 629register SINDIR { 630 address 0x06c 631 access_mode RO 632} 633 634register DINDIR { 635 address 0x06d 636 access_mode WO 637} 638 639register FUNCTION1 { 640 address 0x06e 641 access_mode RW 642} 643 644register STACK { 645 address 0x06f 646 access_mode RO 647} 648 649/* 650 * Board Control (p. 3-43) 651 */ 652register BCTL { 653 address 0x084 654 access_mode RW 655 bit ACE 0x08 656 bit ENABLE 0x01 657} 658 659/* 660 * On the aic78X0 chips, Board Control is replaced by the DSCommand 661 * register (p. 4-64) 662 */ 663register DSCOMMAND0 { 664 address 0x084 665 access_mode RW 666 bit CACHETHEN 0x80 /* Cache Threshold enable */ 667 bit DPARCKEN 0x40 /* Data Parity Check Enable */ 668 bit MPARCKEN 0x20 /* Memory Parity Check Enable */ 669 bit EXTREQLCK 0x10 /* External Request Lock */ 670 /* aic7890/91/96/97 only */ 671 bit INTSCBRAMSEL 0x08 /* Internal SCB RAM Select */ 672 bit RAMPS 0x04 /* External SCB RAM Present */ 673 bit USCBSIZE32 0x02 /* Use 32byte SCB Page Size */ 674 bit CIOPARCKEN 0x01 /* Internal bus parity error enable */ 675} 676 677/* 678 * Bus On/Off Time (p. 3-44) 679 */ 680register BUSTIME { 681 address 0x085 682 access_mode RW 683 mask BOFF 0xf0 684 mask BON 0x0f 685} 686 687/* 688 * Bus Speed (p. 3-45) aic7770 only 689 */ 690register BUSSPD { 691 address 0x086 692 access_mode RW 693 mask DFTHRSH 0xc0 694 mask STBOFF 0x38 695 mask STBON 0x07 696 mask DFTHRSH_100 0xc0 697} 698 699/* aic7850/55/60/70/80/95 only */ 700register DSPCISTATUS { 701 address 0x086 702 mask DFTHRSH_100 0xc0 703} 704 705/* aic7890/91/96/97 only */ 706register HS_MAILBOX { 707 address 0x086 708 mask HOST_MAILBOX 0xF0 709 mask SEQ_MAILBOX 0x0F 710 mask HOST_TQINPOS 0x80 /* Boundary at either 0 or 128 */ 711} 712 713const HOST_MAILBOX_SHIFT 4 714const SEQ_MAILBOX_SHIFT 0 715 716/* 717 * Host Control (p. 3-47) R/W 718 * Overall host control of the device. 719 */ 720register HCNTRL { 721 address 0x087 722 access_mode RW 723 bit POWRDN 0x40 724 bit SWINT 0x10 725 bit IRQMS 0x08 726 bit PAUSE 0x04 727 bit INTEN 0x02 728 bit CHIPRST 0x01 729 bit CHIPRSTACK 0x01 730} 731 732/* 733 * Host Address (p. 3-48) 734 * This register contains the address of the byte about 735 * to be transferred across the host bus. 736 */ 737register HADDR { 738 address 0x088 739 size 4 740 access_mode RW 741} 742 743register HCNT { 744 address 0x08c 745 size 3 746 access_mode RW 747} 748 749/* 750 * SCB Pointer (p. 3-49) 751 * Gate one of the SCBs into the SCBARRAY window. 752 */ 753register SCBPTR { 754 address 0x090 755 access_mode RW 756} 757 758/* 759 * Interrupt Status (p. 3-50) 760 * Status for system interrupts 761 */ 762register INTSTAT { 763 address 0x091 764 access_mode RW 765 bit BRKADRINT 0x08 766 bit SCSIINT 0x04 767 bit CMDCMPLT 0x02 768 bit SEQINT 0x01 769 mask BAD_PHASE SEQINT /* unknown scsi bus phase */ 770 mask SEND_REJECT 0x10|SEQINT /* sending a message reject */ 771 mask NO_IDENT 0x20|SEQINT /* no IDENTIFY after reconnect*/ 772 mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */ 773 mask IGN_WIDE_RES 0x40|SEQINT /* Complex IGN Wide Res Msg */ 774 mask BAD_STATUS 0x70|SEQINT /* Bad status from target */ 775 mask RESIDUAL 0x80|SEQINT /* Residual byte count != 0 */ 776 mask TRACEPOINT2 0x90|SEQINT 777 mask HOST_MSG_LOOP 0xa0|SEQINT /* 778 * The bus is ready for the 779 * host to perform another 780 * message transaction. This 781 * mechanism is used for things 782 * like sync/wide negotiation 783 * that require a kernel based 784 * message state engine. 785 */ 786 mask PERR_DETECTED 0xb0|SEQINT /* 787 * Either the phase_lock 788 * or inb_next routine has 789 * noticed a parity error. 790 */ 791 mask TRACEPOINT 0xd0|SEQINT 792 mask DATA_OVERRUN 0xf0|SEQINT /* 793 * Target attempted to write 794 * beyond the bounds of its 795 * command. 796 */ 797 798 mask SEQINT_MASK 0xf0|SEQINT /* SEQINT Status Codes */ 799 mask INT_PEND (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT) 800} 801 802/* 803 * Hard Error (p. 3-53) 804 * Reporting of catastrophic errors. You usually cannot recover from 805 * these without a full board reset. 806 */ 807register ERROR { 808 address 0x092 809 access_mode RO 810 bit CIOPARERR 0x80 /* Ultra2 only */ 811 bit PCIERRSTAT 0x40 /* PCI only */ 812 bit MPARERR 0x20 /* PCI only */ 813 bit DPARERR 0x10 /* PCI only */ 814 bit SQPARERR 0x08 815 bit ILLOPCODE 0x04 816 bit ILLSADDR 0x02 817 bit ILLHADDR 0x01 818} 819 820/* 821 * Clear Interrupt Status (p. 3-52) 822 */ 823register CLRINT { 824 address 0x092 825 access_mode WO 826 bit CLRPARERR 0x10 /* PCI only */ 827 bit CLRBRKADRINT 0x08 828 bit CLRSCSIINT 0x04 829 bit CLRCMDINT 0x02 830 bit CLRSEQINT 0x01 831} 832 833register DFCNTRL { 834 address 0x093 835 access_mode RW 836 bit PRELOADEN 0x80 /* aic7890 only */ 837 bit WIDEODD 0x40 838 bit SCSIEN 0x20 839 bit SDMAEN 0x10 840 bit SDMAENACK 0x10 841 bit HDMAEN 0x08 842 bit HDMAENACK 0x08 843 bit DIRECTION 0x04 844 bit FIFOFLUSH 0x02 845 bit FIFORESET 0x01 846} 847 848register DFSTATUS { 849 address 0x094 850 access_mode RO 851 bit PRELOAD_AVAIL 0x80 852 bit DWORDEMP 0x20 853 bit MREQPEND 0x10 854 bit HDONE 0x08 855 bit DFTHRESH 0x04 856 bit FIFOFULL 0x02 857 bit FIFOEMP 0x01 858} 859 860register DFWADDR { 861 address 0x95 862 access_mode RW 863} 864 865register DFRADDR { 866 address 0x97 867 access_mode RW 868} 869 870register DFDAT { 871 address 0x099 872 access_mode RW 873} 874 875/* 876 * SCB Auto Increment (p. 3-59) 877 * Byte offset into the SCB Array and an optional bit to allow auto 878 * incrementing of the address during download and upload operations 879 */ 880register SCBCNT { 881 address 0x09a 882 access_mode RW 883 bit SCBAUTO 0x80 884 mask SCBCNT_MASK 0x1f 885} 886 887/* 888 * Queue In FIFO (p. 3-60) 889 * Input queue for queued SCBs (commands that the seqencer has yet to start) 890 */ 891register QINFIFO { 892 address 0x09b 893 access_mode RW 894} 895 896/* 897 * Queue In Count (p. 3-60) 898 * Number of queued SCBs 899 */ 900register QINCNT { 901 address 0x09c 902 access_mode RO 903} 904 905/* 906 * Queue Out FIFO (p. 3-61) 907 * Queue of SCBs that have completed and await the host 908 */ 909register QOUTFIFO { 910 address 0x09d 911 access_mode WO 912} 913 914register CRCCONTROL1 { 915 address 0x09d 916 access_mode RW 917 bit CRCONSEEN 0x80 918 bit CRCVALCHKEN 0x40 919 bit CRCENDCHKEN 0x20 920 bit CRCREQCHKEN 0x10 921 bit TARGCRCENDEN 0x08 922 bit TARGCRCCNTEN 0x04 923} 924 925 926/* 927 * Queue Out Count (p. 3-61) 928 * Number of queued SCBs in the Out FIFO 929 */ 930register QOUTCNT { 931 address 0x09e 932 access_mode RO 933} 934 935register SCSIPHASE { 936 address 0x09e 937 access_mode RO 938 bit STATUS_PHASE 0x20 939 bit COMMAND_PHASE 0x10 940 bit MSG_IN_PHASE 0x08 941 bit MSG_OUT_PHASE 0x04 942 bit DATA_IN_PHASE 0x02 943 bit DATA_OUT_PHASE 0x01 944} 945 946/* 947 * Special Function 948 */ 949register SFUNCT { 950 address 0x09f 951 access_mode RW 952 bit ALT_MODE 0x80 953} 954 955/* 956 * SCB Definition (p. 5-4) 957 */ 958scb { 959 address 0x0a0 960 SCB_CONTROL { 961 size 1 962 bit TARGET_SCB 0x80 963 bit DISCENB 0x40 964 bit TAG_ENB 0x20 965 bit MK_MESSAGE 0x10 966 bit ULTRAENB 0x08 967 bit DISCONNECTED 0x04 968 mask SCB_TAG_TYPE 0x03 969 } 970 SCB_SCSIID { 971 size 1 972 bit TWIN_CHNLB 0x80 973 mask TWIN_TID 0x70 974 mask TID 0xf0 975 mask OID 0x0f 976 } 977 SCB_LUN { 978 mask LID 0xff 979 size 1 980 } 981 SCB_CDB_LEN { 982 size 1 983 } 984 SCB_CDB_PTR { 985 size 4 986 alias SCB_RESIDUAL_DATACNT 987 alias SCB_CDB_STORE 988 alias SCB_TARGET_INFO 989 } 990 SCB_RESIDUAL_SGPTR { 991 size 4 992 } 993 SCB_SCSI_STATUS { 994 size 1 995 } 996 SCB_CDB_STORE_PAD { 997 size 3 998 } 999 SCB_DATAPTR { 1000 size 4 1001 } 1002 SCB_DATACNT { 1003 /* 1004 * The last byte is really the high address bits for 1005 * the data address. 1006 */ 1007 size 4 1008 bit SG_LAST_SEG 0x80 /* In the fourth byte */ 1009 mask SG_HIGH_ADDR_BITS 0x7F /* In the fourth byte */ 1010 } 1011 SCB_SGPTR { 1012 size 4 1013 bit SG_RESID_VALID 0x04 /* In the first byte */ 1014 bit SG_FULL_RESID 0x02 /* In the first byte */ 1015 bit SG_LIST_NULL 0x01 /* In the first byte */ 1016 } 1017 SCB_TAG { 1018 size 1 1019 } 1020 SCB_SCSIRATE { 1021 size 1 1022 } 1023 SCB_SCSIOFFSET { 1024 size 1 1025 } 1026 SCB_NEXT { 1027 size 1 1028 } 1029 SCB_64_BTT { 1030 size 16 1031 } 1032 SCB_64_SPARE { 1033 size 16 1034 } 1035} 1036 1037const SCB_32BYTE_SIZE 30 /* Cards supporting 32byte scbs */ 1038const SCB_64BYTE_SIZE 32 /* Cards supporting 64byte scbs */ 1039 1040const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */ 1041 1042/* --------------------- AHA-2840-only definitions -------------------- */ 1043 1044register SEECTL_2840 { 1045 address 0x0c0 1046 access_mode RW 1047 bit CS_2840 0x04 1048 bit CK_2840 0x02 1049 bit DO_2840 0x01 1050} 1051 1052register STATUS_2840 { 1053 address 0x0c1 1054 access_mode RW 1055 bit EEPROM_TF 0x80 1056 mask BIOS_SEL 0x60 1057 mask ADSEL 0x1e 1058 bit DI_2840 0x01 1059} 1060 1061/* --------------------- AIC-7870-only definitions -------------------- */ 1062 1063register CCHADDR { 1064 address 0x0E0 1065 size 8 1066} 1067 1068register CCHCNT { 1069 address 0x0E8 1070} 1071 1072register CCSGRAM { 1073 address 0x0E9 1074} 1075 1076register CCSGADDR { 1077 address 0x0EA 1078} 1079 1080register CCSGCTL { 1081 address 0x0EB 1082 bit CCSGDONE 0x80 1083 bit CCSGEN 0x08 1084 bit SG_FETCH_NEEDED 0x02 /* Bit used for software state */ 1085 bit CCSGRESET 0x01 1086} 1087 1088register CCSCBCNT { 1089 address 0xEF 1090} 1091 1092register CCSCBCTL { 1093 address 0x0EE 1094 bit CCSCBDONE 0x80 1095 bit ARRDONE 0x40 /* SCB Array prefetch done */ 1096 bit CCARREN 0x10 1097 bit CCSCBEN 0x08 1098 bit CCSCBDIR 0x04 1099 bit CCSCBRESET 0x01 1100} 1101 1102register CCSCBADDR { 1103 address 0x0ED 1104} 1105 1106register CCSCBRAM { 1107 address 0xEC 1108} 1109 1110/* 1111 * SCB bank address (7895/7896/97 only) 1112 */ 1113register SCBBADDR { 1114 address 0x0F0 1115 access_mode RW 1116} 1117 1118register CCSCBPTR { 1119 address 0x0F1 1120} 1121 1122register HNSCB_QOFF { 1123 address 0x0F4 1124} 1125 1126register SNSCB_QOFF { 1127 address 0x0F6 1128} 1129 1130register SDSCB_QOFF { 1131 address 0x0F8 1132} 1133 1134register QOFF_CTLSTA { 1135 address 0x0FA 1136 bit SCB_AVAIL 0x40 1137 bit SNSCB_ROLLOVER 0x20 1138 bit SDSCB_ROLLOVER 0x10 1139 mask SCB_QSIZE 0x07 1140 mask SCB_QSIZE_256 0x06 1141} 1142 1143register DFF_THRSH { 1144 address 0x0FB 1145 mask WR_DFTHRSH 0x70 1146 mask RD_DFTHRSH 0x07 1147 mask RD_DFTHRSH_MIN 0x00 1148 mask RD_DFTHRSH_25 0x01 1149 mask RD_DFTHRSH_50 0x02 1150 mask RD_DFTHRSH_63 0x03 1151 mask RD_DFTHRSH_75 0x04 1152 mask RD_DFTHRSH_85 0x05 1153 mask RD_DFTHRSH_90 0x06 1154 mask RD_DFTHRSH_MAX 0x07 1155 mask WR_DFTHRSH_MIN 0x00 1156 mask WR_DFTHRSH_25 0x10 1157 mask WR_DFTHRSH_50 0x20 1158 mask WR_DFTHRSH_63 0x30 1159 mask WR_DFTHRSH_75 0x40 1160 mask WR_DFTHRSH_85 0x50 1161 mask WR_DFTHRSH_90 0x60 1162 mask WR_DFTHRSH_MAX 0x70 1163} 1164 1165register SG_CACHE_PRE { 1166 access_mode WO 1167 address 0x0fc 1168 mask SG_ADDR_MASK 0xf8 1169 bit ODD_SEG 0x04 1170 bit LAST_SEG 0x02 1171 bit LAST_SEG_DONE 0x01 1172} 1173 1174register SG_CACHE_SHADOW { 1175 access_mode RO 1176 address 0x0fc 1177 mask SG_ADDR_MASK 0xf8 1178 bit ODD_SEG 0x04 1179 bit LAST_SEG 0x02 1180 bit LAST_SEG_DONE 0x01 1181} 1182/* ---------------------- Scratch RAM Offsets ------------------------- */ 1183/* These offsets are either to values that are initialized by the board's 1184 * BIOS or are specified by the sequencer code. 1185 * 1186 * The host adapter card (at least the BIOS) uses 20-2f for SCSI 1187 * device information, 32-33 and 5a-5f as well. As it turns out, the 1188 * BIOS trashes 20-2f, writing the synchronous negotiation results 1189 * on top of the BIOS values, so we re-use those for our per-target 1190 * scratchspace (actually a value that can be copied directly into 1191 * SCSIRATE). The kernel driver will enable synchronous negotiation 1192 * for all targets that have a value other than 0 in the lower four 1193 * bits of the target scratch space. This should work regardless of 1194 * whether the bios has been installed. 1195 */ 1196 1197scratch_ram { 1198 address 0x020 1199 1200 /* 1201 * 1 byte per target starting at this address for configuration values 1202 */ 1203 CMDSIZE_TABLE { 1204 alias TARG_SCSIRATE 1205 size 8 1206 } 1207 BUSY_TARGETS { 1208 size 16 1209 } 1210 /* 1211 * Bit vector of targets that have ULTRA enabled. 1212 */ 1213 ULTRA_ENB { 1214 size 2 1215 } 1216 /* 1217 * Bit vector of targets that have disconnection disabled. 1218 */ 1219 DISC_DSB { 1220 size 2 1221 } 1222 /* 1223 * Single byte buffer used to designate the type or message 1224 * to send to a target. 1225 */ 1226 MSG_OUT { 1227 size 1 1228 } 1229 /* Parameters for DMA Logic */ 1230 DMAPARAMS { 1231 size 1 1232 bit PRELOADEN 0x80 1233 bit WIDEODD 0x40 1234 bit SCSIEN 0x20 1235 bit SDMAEN 0x10 1236 bit SDMAENACK 0x10 1237 bit HDMAEN 0x08 1238 bit HDMAENACK 0x08 1239 bit DIRECTION 0x04 1240 bit FIFOFLUSH 0x02 1241 bit FIFORESET 0x01 1242 } 1243 SEQ_FLAGS { 1244 size 1 1245 bit IDENTIFY_SEEN 0x80 1246 bit SCBPTR_VALID 0x40 1247 bit TARGET_CMD_IS_TAGGED 0x40 1248 bit DPHASE 0x20 1249 /* Target flags */ 1250 bit TARG_CMD_PENDING 0x10 1251 bit CMDPHASE_PENDING 0x08 1252 bit DPHASE_PENDING 0x04 1253 bit SPHASE_PENDING 0x02 1254 bit NO_DISCONNECT 0x01 1255 } 1256 /* 1257 * Temporary storage for the 1258 * target/channel/lun of a 1259 * reconnecting target 1260 */ 1261 SAVED_SCSIID { 1262 size 1 1263 } 1264 SAVED_LUN { 1265 size 1 1266 } 1267 /* 1268 * The last bus phase as seen by the sequencer. 1269 */ 1270 LASTPHASE { 1271 size 1 1272 bit CDI 0x80 1273 bit IOI 0x40 1274 bit MSGI 0x20 1275 mask PHASE_MASK CDI|IOI|MSGI 1276 mask P_DATAOUT 0x00 1277 mask P_DATAIN IOI 1278 mask P_COMMAND CDI 1279 mask P_MESGOUT CDI|MSGI 1280 mask P_STATUS CDI|IOI 1281 mask P_MESGIN CDI|IOI|MSGI 1282 mask P_BUSFREE 0x01 1283 } 1284 /* 1285 * head of list of SCBs awaiting 1286 * selection 1287 */ 1288 WAITING_SCBH { 1289 size 1 1290 } 1291 /* 1292 * head of list of SCBs that are 1293 * disconnected. Used for SCB 1294 * paging. 1295 */ 1296 DISCONNECTED_SCBH { 1297 size 1 1298 } 1299 /* 1300 * head of list of SCBs that are 1301 * not in use. Used for SCB paging. 1302 */ 1303 FREE_SCBH { 1304 size 1 1305 } 1306 /* 1307 * Address of the hardware scb array in the host. 1308 */ 1309 HSCB_ADDR { 1310 size 4 1311 } 1312 /* 1313 * Base address of our shared data with the kernel driver in host 1314 * memory. This includes the qinfifo, qoutfifo, and target mode 1315 * incoming command queue. 1316 */ 1317 SHARED_DATA_ADDR { 1318 size 4 1319 } 1320 KERNEL_QINPOS { 1321 size 1 1322 } 1323 QINPOS { 1324 size 1 1325 } 1326 QOUTPOS { 1327 size 1 1328 } 1329 /* 1330 * Kernel and sequencer offsets into the queue of 1331 * incoming target mode command descriptors. The 1332 * queue is full when the KERNEL_TQINPOS == TQINPOS. 1333 */ 1334 KERNEL_TQINPOS { 1335 size 1 1336 } 1337 TQINPOS { 1338 size 1 1339 } 1340 ARG_1 { 1341 size 1 1342 mask SEND_MSG 0x80 1343 mask SEND_SENSE 0x40 1344 mask SEND_REJ 0x20 1345 mask MSGOUT_PHASEMIS 0x10 1346 mask EXIT_MSG_LOOP 0x08 1347 mask CONT_MSG_LOOP 0x04 1348 mask CONT_TARG_SESSION 0x02 1349 alias RETURN_1 1350 } 1351 ARG_2 { 1352 size 1 1353 alias RETURN_2 1354 } 1355 1356 /* 1357 * Snapshot of MSG_OUT taken after each message is sent. 1358 */ 1359 LAST_MSG { 1360 size 1 1361 } 1362 1363 /* 1364 * Interrupt kernel for a message to this target on 1365 * the next transaction. This is usually used for 1366 * negotiation requests. 1367 */ 1368 TARGET_MSG_REQUEST { 1369 size 2 1370 } 1371 1372 /* 1373 * Sequences the kernel driver has okayed for us. This allows 1374 * the driver to do things like prevent initiator or target 1375 * operations. 1376 */ 1377 SCSISEQ_TEMPLATE { 1378 size 1 1379 bit ENSELO 0x40 1380 bit ENSELI 0x20 1381 bit ENRSELI 0x10 1382 bit ENAUTOATNO 0x08 1383 bit ENAUTOATNI 0x04 1384 bit ENAUTOATNP 0x02 1385 } 1386 1387 /* 1388 * Track whether the transfer byte count for 1389 * the current data phase is odd. 1390 */ 1391 DATA_COUNT_ODD { 1392 size 1 1393 } 1394 1395 /* 1396 * The initiator specified tag for this target mode transaction. 1397 */ 1398 INITIATOR_TAG { 1399 size 1 1400 } 1401 1402 /* 1403 * These are reserved registers in the card's scratch ram. Some of 1404 * the values are specified in the AHA2742 technical reference manual 1405 * and are initialized by the BIOS at boot time. 1406 */ 1407 SCSICONF { 1408 address 0x05a 1409 size 1 1410 bit TERM_ENB 0x80 1411 bit RESET_SCSI 0x40 1412 bit ENSPCHK 0x20 1413 mask HSCSIID 0x07 /* our SCSI ID */ 1414 mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */ 1415 } 1416 HOSTCONF { 1417 address 0x05d 1418 size 1 1419 } 1420 HA_274_BIOSCTRL { 1421 address 0x05f 1422 size 1 1423 mask BIOSMODE 0x30 1424 mask BIOSDISABLED 0x30 1425 bit CHANNEL_B_PRIMARY 0x08 1426 } 1427 /* 1428 * Per target SCSI offset values for Ultra2 controllers. 1429 */ 1430 TARG_OFFSET { 1431 address 0x070 1432 size 16 1433 } 1434} 1435 1436const TID_SHIFT 4 1437const SCB_LIST_NULL 0xff 1438const TARGET_CMD_CMPLT 0xfe 1439 1440const CCSGADDR_MAX 0x80 1441const CCSGRAM_MAXSEGS 16 1442 1443/* WDTR Message values */ 1444const BUS_8_BIT 0x00 1445const BUS_16_BIT 0x01 1446const BUS_32_BIT 0x02 1447 1448/* Offset maximums */ 1449const MAX_OFFSET_8BIT 0x0f 1450const MAX_OFFSET_16BIT 0x08 1451const MAX_OFFSET_ULTRA2 0x7f 1452const HOST_MSG 0xff 1453 1454/* Target mode command processing constants */ 1455const CMD_GROUP_CODE_SHIFT 0x05 1456 1457const STATUS_BUSY 0x08 1458const STATUS_QUEUE_FULL 0x28 1459const SCB_TARGET_PHASES 0 1460const SCB_TARGET_DATA_DIR 1 1461const SCB_TARGET_STATUS 2 1462const SCB_INITIATOR_TAG 3 1463const TARGET_DATA_IN 1 1464 1465/* 1466 * Downloaded (kernel inserted) constants 1467 */ 1468/* Offsets into the SCBID array where different data is stored */ 1469const QOUTFIFO_OFFSET download 1470const QINFIFO_OFFSET download
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