| blob | ba0b411d03e2e1fa8df22648ed466e0197e34e13 |
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 */
42 VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $"
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 */
53 /*
54 * Registers marked "dont_generate_debug_code" are not (yet) referenced
55 * from the driver code, and this keyword inhibit generation
56 * of debug code for them.
57 *
58 * REG_PRETTY_PRINT config will complain if dont_generate_debug_code
59 * is added to the register which is referenced in the driver.
60 * Unreferenced register with no dont_generate_debug_code will result
61 * in dead code. No warning is issued.
62 */
64 /*
65 * SCSI Sequence Control (p. 3-11).
66 * Each bit, when set starts a specific SCSI sequence on the bus
67 */
68 register SCSISEQ {
69 address 0x000
70 access_mode RW
71 field TEMODE 0x80
72 field ENSELO 0x40
73 field ENSELI 0x20
74 field ENRSELI 0x10
75 field ENAUTOATNO 0x08
76 field ENAUTOATNI 0x04
77 field ENAUTOATNP 0x02
78 field SCSIRSTO 0x01
79 }
81 /*
82 * SCSI Transfer Control 0 Register (pp. 3-13).
83 * Controls the SCSI module data path.
84 */
85 register SXFRCTL0 {
86 address 0x001
87 access_mode RW
88 field DFON 0x80
89 field DFPEXP 0x40
90 field FAST20 0x20
91 field CLRSTCNT 0x10
92 field SPIOEN 0x08
93 field SCAMEN 0x04
94 field CLRCHN 0x02
95 }
97 /*
98 * SCSI Transfer Control 1 Register (pp. 3-14,15).
99 * Controls the SCSI module data path.
100 */
101 register SXFRCTL1 {
102 address 0x002
103 access_mode RW
104 field BITBUCKET 0x80
105 field SWRAPEN 0x40
106 field ENSPCHK 0x20
107 mask STIMESEL 0x18
108 field ENSTIMER 0x04
109 field ACTNEGEN 0x02
110 field STPWEN 0x01 /* Powered Termination */
111 dont_generate_debug_code
112 }
114 /*
115 * SCSI Control Signal Read Register (p. 3-15).
116 * Reads the actual state of the SCSI bus pins
117 */
118 register SCSISIGI {
119 address 0x003
120 access_mode RO
121 field CDI 0x80
122 field IOI 0x40
123 field MSGI 0x20
124 field ATNI 0x10
125 field SELI 0x08
126 field BSYI 0x04
127 field REQI 0x02
128 field ACKI 0x01
129 /*
130 * Possible phases in SCSISIGI
131 */
132 mask PHASE_MASK CDI|IOI|MSGI
133 mask P_DATAOUT 0x00
134 mask P_DATAIN IOI
135 mask P_DATAOUT_DT P_DATAOUT|MSGI
136 mask P_DATAIN_DT P_DATAIN|MSGI
137 mask P_COMMAND CDI
138 mask P_MESGOUT CDI|MSGI
139 mask P_STATUS CDI|IOI
140 mask P_MESGIN CDI|IOI|MSGI
141 }
143 /*
144 * SCSI Control Signal Write Register (p. 3-16).
145 * Writing to this register modifies the control signals on the bus. Only
146 * those signals that are allowed in the current mode (Initiator/Target) are
147 * asserted.
148 */
149 register SCSISIGO {
150 address 0x003
151 access_mode WO
152 field CDO 0x80
153 field IOO 0x40
154 field MSGO 0x20
155 field ATNO 0x10
156 field SELO 0x08
157 field BSYO 0x04
158 field REQO 0x02
159 field ACKO 0x01
160 /*
161 * Possible phases to write into SCSISIG0
162 */
163 mask PHASE_MASK CDI|IOI|MSGI
164 mask P_DATAOUT 0x00
165 mask P_DATAIN IOI
166 mask P_COMMAND CDI
167 mask P_MESGOUT CDI|MSGI
168 mask P_STATUS CDI|IOI
169 mask P_MESGIN CDI|IOI|MSGI
170 dont_generate_debug_code
171 }
173 /*
174 * SCSI Rate Control (p. 3-17).
175 * Contents of this register determine the Synchronous SCSI data transfer
176 * rate and the maximum synchronous Req/Ack offset. An offset of 0 in the
177 * SOFS (3:0) bits disables synchronous data transfers. Any offset value
178 * greater than 0 enables synchronous transfers.
179 */
180 register SCSIRATE {
181 address 0x004
182 access_mode RW
183 field WIDEXFER 0x80 /* Wide transfer control */
184 field ENABLE_CRC 0x40 /* CRC for D-Phases */
185 field SINGLE_EDGE 0x10 /* Disable DT Transfers */
186 mask SXFR 0x70 /* Sync transfer rate */
187 mask SXFR_ULTRA2 0x0f /* Sync transfer rate */
188 mask SOFS 0x0f /* Sync offset */
189 }
191 /*
192 * SCSI ID (p. 3-18).
193 * Contains the ID of the board and the current target on the
194 * selected channel.
195 */
196 register SCSIID {
197 address 0x005
198 access_mode RW
199 mask TID 0xf0 /* Target ID mask */
200 mask TWIN_TID 0x70
201 field TWIN_CHNLB 0x80
202 mask OID 0x0f /* Our ID mask */
203 /*
204 * SCSI Maximum Offset (p. 4-61 aic7890/91 Data Book)
205 * The aic7890/91 allow an offset of up to 127 transfers in both wide
206 * and narrow mode.
207 */
208 alias SCSIOFFSET
209 mask SOFS_ULTRA2 0x7f /* Sync offset U2 chips */
210 dont_generate_debug_code
211 }
213 /*
214 * SCSI Latched Data (p. 3-19).
215 * Read/Write latches used to transfer data on the SCSI bus during
216 * Automatic or Manual PIO mode. SCSIDATH can be used for the
217 * upper byte of a 16bit wide asynchronouse data phase transfer.
218 */
219 register SCSIDATL {
220 address 0x006
221 access_mode RW
222 dont_generate_debug_code
223 }
225 register SCSIDATH {
226 address 0x007
227 access_mode RW
228 }
230 /*
231 * SCSI Transfer Count (pp. 3-19,20)
232 * These registers count down the number of bytes transferred
233 * across the SCSI bus. The counter is decremented only once
234 * the data has been safely transferred. SDONE in SSTAT0 is
235 * set when STCNT goes to 0
236 */
237 register STCNT {
238 address 0x008
239 size 3
240 access_mode RW
241 dont_generate_debug_code
242 }
244 /* ALT_MODE registers (Ultra2 and Ultra160 chips) */
245 register SXFRCTL2 {
246 address 0x013
247 access_mode RW
248 field AUTORSTDIS 0x10
249 field CMDDMAEN 0x08
250 mask ASYNC_SETUP 0x07
251 }
253 /* ALT_MODE register on Ultra160 chips */
254 register OPTIONMODE {
255 address 0x008
256 access_mode RW
257 count 2
258 field AUTORATEEN 0x80
259 field AUTOACKEN 0x40
260 field ATNMGMNTEN 0x20
261 field BUSFREEREV 0x10
262 field EXPPHASEDIS 0x08
263 field SCSIDATL_IMGEN 0x04
264 field AUTO_MSGOUT_DE 0x02
265 field DIS_MSGIN_DUALEDGE 0x01
266 mask OPTIONMODE_DEFAULTS AUTO_MSGOUT_DE|DIS_MSGIN_DUALEDGE
267 dont_generate_debug_code
268 }
270 /* ALT_MODE register on Ultra160 chips */
271 register TARGCRCCNT {
272 address 0x00a
273 size 2
274 access_mode RW
275 count 2
276 dont_generate_debug_code
277 }
279 /*
280 * Clear SCSI Interrupt 0 (p. 3-20)
281 * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT0.
282 */
283 register CLRSINT0 {
284 address 0x00b
285 access_mode WO
286 field CLRSELDO 0x40
287 field CLRSELDI 0x20
288 field CLRSELINGO 0x10
289 field CLRSWRAP 0x08
290 field CLRIOERR 0x08 /* Ultra2 Only */
291 field CLRSPIORDY 0x02
292 dont_generate_debug_code
293 }
295 /*
296 * SCSI Status 0 (p. 3-21)
297 * Contains one set of SCSI Interrupt codes
298 * These are most likely of interest to the sequencer
299 */
300 register SSTAT0 {
301 address 0x00b
302 access_mode RO
303 field TARGET 0x80 /* Board acting as target */
304 field SELDO 0x40 /* Selection Done */
305 field SELDI 0x20 /* Board has been selected */
306 field SELINGO 0x10 /* Selection In Progress */
307 field SWRAP 0x08 /* 24bit counter wrap */
308 field IOERR 0x08 /* LVD Tranceiver mode changed */
309 field SDONE 0x04 /* STCNT = 0x000000 */
310 field SPIORDY 0x02 /* SCSI PIO Ready */
311 field DMADONE 0x01 /* DMA transfer completed */
312 }
314 /*
315 * Clear SCSI Interrupt 1 (p. 3-23)
316 * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT1.
317 */
318 register CLRSINT1 {
319 address 0x00c
320 access_mode WO
321 field CLRSELTIMEO 0x80
322 field CLRATNO 0x40
323 field CLRSCSIRSTI 0x20
324 field CLRBUSFREE 0x08
325 field CLRSCSIPERR 0x04
326 field CLRPHASECHG 0x02
327 field CLRREQINIT 0x01
328 dont_generate_debug_code
329 }
331 /*
332 * SCSI Status 1 (p. 3-24)
333 */
334 register SSTAT1 {
335 address 0x00c
336 access_mode RO
337 field SELTO 0x80
338 field ATNTARG 0x40
339 field SCSIRSTI 0x20
340 field PHASEMIS 0x10
341 field BUSFREE 0x08
342 field SCSIPERR 0x04
343 field PHASECHG 0x02
344 field REQINIT 0x01
345 }
347 /*
348 * SCSI Status 2 (pp. 3-25,26)
349 */
350 register SSTAT2 {
351 address 0x00d
352 access_mode RO
353 field OVERRUN 0x80
354 field SHVALID 0x40 /* Shadow Layer non-zero */
355 field EXP_ACTIVE 0x10 /* SCSI Expander Active */
356 field CRCVALERR 0x08 /* CRC doesn't match (U3 only) */
357 field CRCENDERR 0x04 /* No terminal CRC packet (U3 only) */
358 field CRCREQERR 0x02 /* Illegal CRC packet req (U3 only) */
359 field DUAL_EDGE_ERR 0x01 /* Incorrect data phase (U3 only) */
360 mask SFCNT 0x1f
361 }
363 /*
364 * SCSI Status 3 (p. 3-26)
365 */
366 register SSTAT3 {
367 address 0x00e
368 access_mode RO
369 count 2
370 mask SCSICNT 0xf0
371 mask OFFCNT 0x0f
372 mask U2OFFCNT 0x7f
373 }
375 /*
376 * SCSI ID for the aic7890/91 chips
377 */
378 register SCSIID_ULTRA2 {
379 address 0x00f
380 access_mode RW
381 mask TID 0xf0 /* Target ID mask */
382 mask OID 0x0f /* Our ID mask */
383 dont_generate_debug_code
384 }
386 /*
387 * SCSI Interrupt Mode 1 (p. 3-28)
388 * Setting any bit will enable the corresponding function
389 * in SIMODE0 to interrupt via the IRQ pin.
390 */
391 register SIMODE0 {
392 address 0x010
393 access_mode RW
394 count 2
395 field ENSELDO 0x40
396 field ENSELDI 0x20
397 field ENSELINGO 0x10
398 field ENSWRAP 0x08
399 field ENIOERR 0x08 /* LVD Tranceiver mode changes */
400 field ENSDONE 0x04
401 field ENSPIORDY 0x02
402 field ENDMADONE 0x01
403 }
405 /*
406 * SCSI Interrupt Mode 1 (pp. 3-28,29)
407 * Setting any bit will enable the corresponding function
408 * in SIMODE1 to interrupt via the IRQ pin.
409 */
410 register SIMODE1 {
411 address 0x011
412 access_mode RW
413 field ENSELTIMO 0x80
414 field ENATNTARG 0x40
415 field ENSCSIRST 0x20
416 field ENPHASEMIS 0x10
417 field ENBUSFREE 0x08
418 field ENSCSIPERR 0x04
419 field ENPHASECHG 0x02
420 field ENREQINIT 0x01
421 }
423 /*
424 * SCSI Data Bus (High) (p. 3-29)
425 * This register reads data on the SCSI Data bus directly.
426 */
427 register SCSIBUSL {
428 address 0x012
429 access_mode RW
430 }
432 register SCSIBUSH {
433 address 0x013
434 access_mode RW
435 }
437 /*
438 * SCSI/Host Address (p. 3-30)
439 * These registers hold the host address for the byte about to be
440 * transferred on the SCSI bus. They are counted up in the same
441 * manner as STCNT is counted down. SHADDR should always be used
442 * to determine the address of the last byte transferred since HADDR
443 * can be skewed by write ahead.
444 */
445 register SHADDR {
446 address 0x014
447 size 4
448 access_mode RO
449 dont_generate_debug_code
450 }
452 /*
453 * Selection Timeout Timer (p. 3-30)
454 */
455 register SELTIMER {
456 address 0x018
457 access_mode RW
458 count 1
459 field STAGE6 0x20
460 field STAGE5 0x10
461 field STAGE4 0x08
462 field STAGE3 0x04
463 field STAGE2 0x02
464 field STAGE1 0x01
465 alias TARGIDIN
466 dont_generate_debug_code
467 }
469 /*
470 * Selection/Reselection ID (p. 3-31)
471 * Upper four bits are the device id. The ONEBIT is set when the re/selecting
472 * device did not set its own ID.
473 */
474 register SELID {
475 address 0x019
476 access_mode RW
477 mask SELID_MASK 0xf0
478 field ONEBIT 0x08
479 dont_generate_debug_code
480 }
482 register SCAMCTL {
483 address 0x01a
484 access_mode RW
485 field ENSCAMSELO 0x80
486 field CLRSCAMSELID 0x40
487 field ALTSTIM 0x20
488 field DFLTTID 0x10
489 mask SCAMLVL 0x03
490 }
492 /*
493 * Target Mode Selecting in ID bitmask (aic7890/91/96/97)
494 */
495 register TARGID {
496 address 0x01b
497 size 2
498 access_mode RW
499 count 14
500 dont_generate_debug_code
501 }
503 /*
504 * Serial Port I/O Cabability register (p. 4-95 aic7860 Data Book)
505 * Indicates if external logic has been attached to the chip to
506 * perform the tasks of accessing a serial eeprom, testing termination
507 * strength, and performing cable detection. On the aic7860, most of
508 * these features are handled on chip, but on the aic7855 an attached
509 * aic3800 does the grunt work.
510 */
511 register SPIOCAP {
512 address 0x01b
513 access_mode RW
514 count 10
515 field SOFT1 0x80
516 field SOFT0 0x40
517 field SOFTCMDEN 0x20
518 field EXT_BRDCTL 0x10 /* External Board control */
519 field SEEPROM 0x08 /* External serial eeprom logic */
520 field EEPROM 0x04 /* Writable external BIOS ROM */
521 field ROM 0x02 /* Logic for accessing external ROM */
522 field SSPIOCPS 0x01 /* Termination and cable detection */
523 dont_generate_debug_code
524 }
526 register BRDCTL {
527 address 0x01d
528 count 11
529 field BRDDAT7 0x80
530 field BRDDAT6 0x40
531 field BRDDAT5 0x20
532 field BRDSTB 0x10
533 field BRDCS 0x08
534 field BRDRW 0x04
535 field BRDCTL1 0x02
536 field BRDCTL0 0x01
537 /* 7890 Definitions */
538 field BRDDAT4 0x10
539 field BRDDAT3 0x08
540 field BRDDAT2 0x04
541 field BRDRW_ULTRA2 0x02
542 field BRDSTB_ULTRA2 0x01
543 dont_generate_debug_code
544 }
546 /*
547 * Serial EEPROM Control (p. 4-92 in 7870 Databook)
548 * Controls the reading and writing of an external serial 1-bit
549 * EEPROM Device. In order to access the serial EEPROM, you must
550 * first set the SEEMS bit that generates a request to the memory
551 * port for access to the serial EEPROM device. When the memory
552 * port is not busy servicing another request, it reconfigures
553 * to allow access to the serial EEPROM. When this happens, SEERDY
554 * gets set high to verify that the memory port access has been
555 * granted.
556 *
557 * After successful arbitration for the memory port, the SEECS bit of
558 * the SEECTL register is connected to the chip select. The SEECK,
559 * SEEDO, and SEEDI are connected to the clock, data out, and data in
560 * lines respectively. The SEERDY bit of SEECTL is useful in that it
561 * gives us an 800 nsec timer. After a write to the SEECTL register,
562 * the SEERDY goes high 800 nsec later. The one exception to this is
563 * when we first request access to the memory port. The SEERDY goes
564 * high to signify that access has been granted and, for this case, has
565 * no implied timing.
566 *
567 * See 93cx6.c for detailed information on the protocol necessary to
568 * read the serial EEPROM.
569 */
570 register SEECTL {
571 address 0x01e
572 count 11
573 field EXTARBACK 0x80
574 field EXTARBREQ 0x40
575 field SEEMS 0x20
576 field SEERDY 0x10
577 field SEECS 0x08
578 field SEECK 0x04
579 field SEEDO 0x02
580 field SEEDI 0x01
581 dont_generate_debug_code
582 }
583 /*
584 * SCSI Block Control (p. 3-32)
585 * Controls Bus type and channel selection. In a twin channel configuration
586 * addresses 0x00-0x1e are gated to the appropriate channel based on this
587 * register. SELWIDE allows for the coexistence of 8bit and 16bit devices
588 * on a wide bus.
589 */
590 register SBLKCTL {
591 address 0x01f
592 access_mode RW
593 field DIAGLEDEN 0x80 /* Aic78X0 only */
594 field DIAGLEDON 0x40 /* Aic78X0 only */
595 field AUTOFLUSHDIS 0x20
596 field SELBUSB 0x08
597 field ENAB40 0x08 /* LVD transceiver active */
598 field ENAB20 0x04 /* SE/HVD transceiver active */
599 field SELWIDE 0x02
600 field XCVR 0x01 /* External transceiver active */
601 }
603 /*
604 * Sequencer Control (p. 3-33)
605 * Error detection mode and speed configuration
606 */
607 register SEQCTL {
608 address 0x060
609 access_mode RW
610 count 15
611 field PERRORDIS 0x80
612 field PAUSEDIS 0x40
613 field FAILDIS 0x20
614 field FASTMODE 0x10
615 field BRKADRINTEN 0x08
616 field STEP 0x04
617 field SEQRESET 0x02
618 field LOADRAM 0x01
619 }
621 /*
622 * Sequencer RAM Data (p. 3-34)
623 * Single byte window into the Scratch Ram area starting at the address
624 * specified by SEQADDR0 and SEQADDR1. To write a full word, simply write
625 * four bytes in succession. The SEQADDRs will increment after the most
626 * significant byte is written
627 */
628 register SEQRAM {
629 address 0x061
630 access_mode RW
631 count 2
632 dont_generate_debug_code
633 }
635 /*
636 * Sequencer Address Registers (p. 3-35)
637 * Only the first bit of SEQADDR1 holds addressing information
638 */
639 register SEQADDR0 {
640 address 0x062
641 access_mode RW
642 dont_generate_debug_code
643 }
645 register SEQADDR1 {
646 address 0x063
647 access_mode RW
648 count 8
649 mask SEQADDR1_MASK 0x01
650 dont_generate_debug_code
651 }
653 /*
654 * Accumulator
655 * We cheat by passing arguments in the Accumulator up to the kernel driver
656 */
657 register ACCUM {
658 address 0x064
659 access_mode RW
660 accumulator
661 dont_generate_debug_code
662 }
664 register SINDEX {
665 address 0x065
666 access_mode RW
667 sindex
668 dont_generate_debug_code
669 }
671 register DINDEX {
672 address 0x066
673 access_mode RW
674 dont_generate_debug_code
675 }
677 register ALLONES {
678 address 0x069
679 access_mode RO
680 allones
681 dont_generate_debug_code
682 }
684 register ALLZEROS {
685 address 0x06a
686 access_mode RO
687 allzeros
688 dont_generate_debug_code
689 }
691 register NONE {
692 address 0x06a
693 access_mode WO
694 none
695 dont_generate_debug_code
696 }
698 register FLAGS {
699 address 0x06b
700 access_mode RO
701 count 18
702 field ZERO 0x02
703 field CARRY 0x01
704 dont_generate_debug_code
705 }
707 register SINDIR {
708 address 0x06c
709 access_mode RO
710 dont_generate_debug_code
711 }
713 register DINDIR {
714 address 0x06d
715 access_mode WO
716 dont_generate_debug_code
717 }
719 register FUNCTION1 {
720 address 0x06e
721 access_mode RW
722 }
724 register STACK {
725 address 0x06f
726 access_mode RO
727 count 5
728 dont_generate_debug_code
729 }
731 const STACK_SIZE 4
733 /*
734 * Board Control (p. 3-43)
735 */
736 register BCTL {
737 address 0x084
738 access_mode RW
739 field ACE 0x08
740 field ENABLE 0x01
741 }
743 /*
744 * On the aic78X0 chips, Board Control is replaced by the DSCommand
745 * register (p. 4-64)
746 */
747 register DSCOMMAND0 {
748 address 0x084
749 access_mode RW
750 count 7
751 field CACHETHEN 0x80 /* Cache Threshold enable */
752 field DPARCKEN 0x40 /* Data Parity Check Enable */
753 field MPARCKEN 0x20 /* Memory Parity Check Enable */
754 field EXTREQLCK 0x10 /* External Request Lock */
755 /* aic7890/91/96/97 only */
756 field INTSCBRAMSEL 0x08 /* Internal SCB RAM Select */
757 field RAMPS 0x04 /* External SCB RAM Present */
758 field USCBSIZE32 0x02 /* Use 32byte SCB Page Size */
759 field CIOPARCKEN 0x01 /* Internal bus parity error enable */
760 dont_generate_debug_code
761 }
763 register DSCOMMAND1 {
764 address 0x085
765 access_mode RW
766 mask DSLATT 0xfc /* PCI latency timer (non-ultra2) */
767 field HADDLDSEL1 0x02 /* Host Address Load Select Bits */
768 field HADDLDSEL0 0x01
769 dont_generate_debug_code
770 }
772 /*
773 * Bus On/Off Time (p. 3-44) aic7770 only
774 */
775 register BUSTIME {
776 address 0x085
777 access_mode RW
778 count 2
779 mask BOFF 0xf0
780 mask BON 0x0f
781 dont_generate_debug_code
782 }
784 /*
785 * Bus Speed (p. 3-45) aic7770 only
786 */
787 register BUSSPD {
788 address 0x086
789 access_mode RW
790 count 2
791 mask DFTHRSH 0xc0
792 mask STBOFF 0x38
793 mask STBON 0x07
794 mask DFTHRSH_100 0xc0
795 mask DFTHRSH_75 0x80
796 dont_generate_debug_code
797 }
799 /* aic7850/55/60/70/80/95 only */
800 register DSPCISTATUS {
801 address 0x086
802 count 4
803 mask DFTHRSH_100 0xc0
804 dont_generate_debug_code
805 }
807 /* aic7890/91/96/97 only */
808 register HS_MAILBOX {
809 address 0x086
810 mask HOST_MAILBOX 0xF0
811 mask SEQ_MAILBOX 0x0F
812 mask HOST_TQINPOS 0x80 /* Boundary at either 0 or 128 */
813 dont_generate_debug_code
814 }
816 const HOST_MAILBOX_SHIFT 4
817 const SEQ_MAILBOX_SHIFT 0
819 /*
820 * Host Control (p. 3-47) R/W
821 * Overall host control of the device.
822 */
823 register HCNTRL {
824 address 0x087
825 access_mode RW
826 count 14
827 field POWRDN 0x40
828 field SWINT 0x10
829 field IRQMS 0x08
830 field PAUSE 0x04
831 field INTEN 0x02
832 field CHIPRST 0x01
833 field CHIPRSTACK 0x01
834 dont_generate_debug_code
835 }
837 /*
838 * Host Address (p. 3-48)
839 * This register contains the address of the byte about
840 * to be transferred across the host bus.
841 */
842 register HADDR {
843 address 0x088
844 size 4
845 access_mode RW
846 dont_generate_debug_code
847 }
849 register HCNT {
850 address 0x08c
851 size 3
852 access_mode RW
853 dont_generate_debug_code
854 }
856 /*
857 * SCB Pointer (p. 3-49)
858 * Gate one of the SCBs into the SCBARRAY window.
859 */
860 register SCBPTR {
861 address 0x090
862 access_mode RW
863 dont_generate_debug_code
864 }
866 /*
867 * Interrupt Status (p. 3-50)
868 * Status for system interrupts
869 */
870 register INTSTAT {
871 address 0x091
872 access_mode RW
873 field BRKADRINT 0x08
874 field SCSIINT 0x04
875 field CMDCMPLT 0x02
876 field SEQINT 0x01
877 mask BAD_PHASE SEQINT /* unknown scsi bus phase */
878 mask SEND_REJECT 0x10|SEQINT /* sending a message reject */
879 mask PROTO_VIOLATION 0x20|SEQINT /* SCSI protocol violation */
880 mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */
881 mask IGN_WIDE_RES 0x40|SEQINT /* Complex IGN Wide Res Msg */
882 mask PDATA_REINIT 0x50|SEQINT /*
883 * Returned to data phase
884 * that requires data
885 * transfer pointers to be
886 * recalculated from the
887 * transfer residual.
888 */
889 mask HOST_MSG_LOOP 0x60|SEQINT /*
890 * The bus is ready for the
891 * host to perform another
892 * message transaction. This
893 * mechanism is used for things
894 * like sync/wide negotiation
895 * that require a kernel based
896 * message state engine.
897 */
898 mask BAD_STATUS 0x70|SEQINT /* Bad status from target */
899 mask PERR_DETECTED 0x80|SEQINT /*
900 * Either the phase_lock
901 * or inb_next routine has
902 * noticed a parity error.
903 */
904 mask DATA_OVERRUN 0x90|SEQINT /*
905 * Target attempted to write
906 * beyond the bounds of its
907 * command.
908 */
909 mask MKMSG_FAILED 0xa0|SEQINT /*
910 * Target completed command
911 * without honoring our ATN
912 * request to issue a message.
913 */
914 mask MISSED_BUSFREE 0xb0|SEQINT /*
915 * The sequencer never saw
916 * the bus go free after
917 * either a command complete
918 * or disconnect message.
919 */
920 mask SCB_MISMATCH 0xc0|SEQINT /*
921 * Downloaded SCB's tag does
922 * not match the entry we
923 * intended to download.
924 */
925 mask NO_FREE_SCB 0xd0|SEQINT /*
926 * get_free_or_disc_scb failed.
927 */
928 mask OUT_OF_RANGE 0xe0|SEQINT
930 mask SEQINT_MASK 0xf0|SEQINT /* SEQINT Status Codes */
931 mask INT_PEND (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT)
932 dont_generate_debug_code
933 }
935 /*
936 * Hard Error (p. 3-53)
937 * Reporting of catastrophic errors. You usually cannot recover from
938 * these without a full board reset.
939 */
940 register ERROR {
941 address 0x092
942 access_mode RO
943 count 26
944 field CIOPARERR 0x80 /* Ultra2 only */
945 field PCIERRSTAT 0x40 /* PCI only */
946 field MPARERR 0x20 /* PCI only */
947 field DPARERR 0x10 /* PCI only */
948 field SQPARERR 0x08
949 field ILLOPCODE 0x04
950 field ILLSADDR 0x02
951 field ILLHADDR 0x01
952 }
954 /*
955 * Clear Interrupt Status (p. 3-52)
956 */
957 register CLRINT {
958 address 0x092
959 access_mode WO
960 count 24
961 field CLRPARERR 0x10 /* PCI only */
962 field CLRBRKADRINT 0x08
963 field CLRSCSIINT 0x04
964 field CLRCMDINT 0x02
965 field CLRSEQINT 0x01
966 dont_generate_debug_code
967 }
969 register DFCNTRL {
970 address 0x093
971 access_mode RW
972 field PRELOADEN 0x80 /* aic7890 only */
973 field WIDEODD 0x40
974 field SCSIEN 0x20
975 field SDMAEN 0x10
976 field SDMAENACK 0x10
977 field HDMAEN 0x08
978 field HDMAENACK 0x08
979 field DIRECTION 0x04
980 field FIFOFLUSH 0x02
981 field FIFORESET 0x01
982 }
984 register DFSTATUS {
985 address 0x094
986 access_mode RO
987 field PRELOAD_AVAIL 0x80
988 field DFCACHETH 0x40
989 field FIFOQWDEMP 0x20
990 field MREQPEND 0x10
991 field HDONE 0x08
992 field DFTHRESH 0x04
993 field FIFOFULL 0x02
994 field FIFOEMP 0x01
995 }
997 register DFWADDR {
998 address 0x95
999 access_mode RW
1000 dont_generate_debug_code
1001 }
1003 register DFRADDR {
1004 address 0x97
1005 access_mode RW
1006 }
1008 register DFDAT {
1009 address 0x099
1010 access_mode RW
1011 dont_generate_debug_code
1012 }
1014 /*
1015 * SCB Auto Increment (p. 3-59)
1016 * Byte offset into the SCB Array and an optional bit to allow auto
1017 * incrementing of the address during download and upload operations
1018 */
1019 register SCBCNT {
1020 address 0x09a
1021 access_mode RW
1022 count 1
1023 field SCBAUTO 0x80
1024 mask SCBCNT_MASK 0x1f
1025 dont_generate_debug_code
1026 }
1028 /*
1029 * Queue In FIFO (p. 3-60)
1030 * Input queue for queued SCBs (commands that the seqencer has yet to start)
1031 */
1032 register QINFIFO {
1033 address 0x09b
1034 access_mode RW
1035 count 12
1036 dont_generate_debug_code
1037 }
1039 /*
1040 * Queue In Count (p. 3-60)
1041 * Number of queued SCBs
1042 */
1043 register QINCNT {
1044 address 0x09c
1045 access_mode RO
1046 }
1048 /*
1049 * Queue Out FIFO (p. 3-61)
1050 * Queue of SCBs that have completed and await the host
1051 */
1052 register QOUTFIFO {
1053 address 0x09d
1054 access_mode WO
1055 count 7
1056 dont_generate_debug_code
1057 }
1059 register CRCCONTROL1 {
1060 address 0x09d
1061 access_mode RW
1062 count 3
1063 field CRCONSEEN 0x80
1064 field CRCVALCHKEN 0x40
1065 field CRCENDCHKEN 0x20
1066 field CRCREQCHKEN 0x10
1067 field TARGCRCENDEN 0x08
1068 field TARGCRCCNTEN 0x04
1069 dont_generate_debug_code
1070 }
1073 /*
1074 * Queue Out Count (p. 3-61)
1075 * Number of queued SCBs in the Out FIFO
1076 */
1077 register QOUTCNT {
1078 address 0x09e
1079 access_mode RO
1080 }
1082 register SCSIPHASE {
1083 address 0x09e
1084 access_mode RO
1085 field STATUS_PHASE 0x20
1086 field COMMAND_PHASE 0x10
1087 field MSG_IN_PHASE 0x08
1088 field MSG_OUT_PHASE 0x04
1089 field DATA_IN_PHASE 0x02
1090 field DATA_OUT_PHASE 0x01
1091 mask DATA_PHASE_MASK 0x03
1092 }
1094 /*
1095 * Special Function
1096 */
1097 register SFUNCT {
1098 address 0x09f
1099 access_mode RW
1100 count 4
1101 field ALT_MODE 0x80
1102 dont_generate_debug_code
1103 }
1105 /*
1106 * SCB Definition (p. 5-4)
1107 */
1108 scb {
1109 address 0x0a0
1110 size 64
1112 SCB_CDB_PTR {
1113 size 4
1114 alias SCB_RESIDUAL_DATACNT
1115 alias SCB_CDB_STORE
1116 dont_generate_debug_code
1117 }
1118 SCB_RESIDUAL_SGPTR {
1119 size 4
1120 dont_generate_debug_code
1121 }
1122 SCB_SCSI_STATUS {
1123 size 1
1124 dont_generate_debug_code
1125 }
1126 SCB_TARGET_PHASES {
1127 size 1
1128 dont_generate_debug_code
1129 }
1130 SCB_TARGET_DATA_DIR {
1131 size 1
1132 dont_generate_debug_code
1133 }
1134 SCB_TARGET_ITAG {
1135 size 1
1136 dont_generate_debug_code
1137 }
1138 SCB_DATAPTR {
1139 size 4
1140 dont_generate_debug_code
1141 }
1142 SCB_DATACNT {
1143 /*
1144 * The last byte is really the high address bits for
1145 * the data address.
1146 */
1147 size 4
1148 field SG_LAST_SEG 0x80 /* In the fourth byte */
1149 mask SG_HIGH_ADDR_BITS 0x7F /* In the fourth byte */
1150 dont_generate_debug_code
1151 }
1152 SCB_SGPTR {
1153 size 4
1154 field SG_RESID_VALID 0x04 /* In the first byte */
1155 field SG_FULL_RESID 0x02 /* In the first byte */
1156 field SG_LIST_NULL 0x01 /* In the first byte */
1157 dont_generate_debug_code
1158 }
1159 SCB_CONTROL {
1160 size 1
1161 field TARGET_SCB 0x80
1162 field STATUS_RCVD 0x80
1163 field DISCENB 0x40
1164 field TAG_ENB 0x20
1165 field MK_MESSAGE 0x10
1166 field ULTRAENB 0x08
1167 field DISCONNECTED 0x04
1168 mask SCB_TAG_TYPE 0x03
1169 }
1170 SCB_SCSIID {
1171 size 1
1172 field TWIN_CHNLB 0x80
1173 mask TWIN_TID 0x70
1174 mask TID 0xf0
1175 mask OID 0x0f
1176 }
1177 SCB_LUN {
1178 field SCB_XFERLEN_ODD 0x80
1179 mask LID 0x3f
1180 size 1
1181 }
1182 SCB_TAG {
1183 size 1
1184 }
1185 SCB_CDB_LEN {
1186 size 1
1187 dont_generate_debug_code
1188 }
1189 SCB_SCSIRATE {
1190 size 1
1191 dont_generate_debug_code
1192 }
1193 SCB_SCSIOFFSET {
1194 size 1
1195 count 1
1196 dont_generate_debug_code
1197 }
1198 SCB_NEXT {
1199 size 1
1200 dont_generate_debug_code
1201 }
1202 SCB_64_SPARE {
1203 size 16
1204 }
1205 SCB_64_BTT {
1206 size 16
1207 dont_generate_debug_code
1208 }
1209 }
1211 const SCB_UPLOAD_SIZE 32
1212 const SCB_DOWNLOAD_SIZE 32
1213 const SCB_DOWNLOAD_SIZE_64 48
1215 const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */
1217 /* --------------------- AHA-2840-only definitions -------------------- */
1219 register SEECTL_2840 {
1220 address 0x0c0
1221 access_mode RW
1222 count 2
1223 field CS_2840 0x04
1224 field CK_2840 0x02
1225 field DO_2840 0x01
1226 dont_generate_debug_code
1227 }
1229 register STATUS_2840 {
1230 address 0x0c1
1231 access_mode RW
1232 count 4
1233 field EEPROM_TF 0x80
1234 mask BIOS_SEL 0x60
1235 mask ADSEL 0x1e
1236 field DI_2840 0x01
1237 dont_generate_debug_code
1238 }
1240 /* --------------------- AIC-7870-only definitions -------------------- */
1242 register CCHADDR {
1243 address 0x0E0
1244 size 8
1245 dont_generate_debug_code
1246 }
1248 register CCHCNT {
1249 address 0x0E8
1250 dont_generate_debug_code
1251 }
1253 register CCSGRAM {
1254 address 0x0E9
1255 dont_generate_debug_code
1256 }
1258 register CCSGADDR {
1259 address 0x0EA
1260 dont_generate_debug_code
1261 }
1263 register CCSGCTL {
1264 address 0x0EB
1265 field CCSGDONE 0x80
1266 field CCSGEN 0x08
1267 field SG_FETCH_NEEDED 0x02 /* Bit used for software state */
1268 field CCSGRESET 0x01
1269 dont_generate_debug_code
1270 }
1272 register CCSCBCNT {
1273 address 0xEF
1274 count 1
1275 dont_generate_debug_code
1276 }
1278 register CCSCBCTL {
1279 address 0x0EE
1280 field CCSCBDONE 0x80
1281 field ARRDONE 0x40 /* SCB Array prefetch done */
1282 field CCARREN 0x10
1283 field CCSCBEN 0x08
1284 field CCSCBDIR 0x04
1285 field CCSCBRESET 0x01
1286 dont_generate_debug_code
1287 }
1289 register CCSCBADDR {
1290 address 0x0ED
1291 dont_generate_debug_code
1292 }
1294 register CCSCBRAM {
1295 address 0xEC
1296 dont_generate_debug_code
1297 }
1299 /*
1300 * SCB bank address (7895/7896/97 only)
1301 */
1302 register SCBBADDR {
1303 address 0x0F0
1304 access_mode RW
1305 count 3
1306 dont_generate_debug_code
1307 }
1309 register CCSCBPTR {
1310 address 0x0F1
1311 dont_generate_debug_code
1312 }
1314 register HNSCB_QOFF {
1315 address 0x0F4
1316 count 4
1317 dont_generate_debug_code
1318 }
1320 register SNSCB_QOFF {
1321 address 0x0F6
1322 dont_generate_debug_code
1323 }
1325 register SDSCB_QOFF {
1326 address 0x0F8
1327 dont_generate_debug_code
1328 }
1330 register QOFF_CTLSTA {
1331 address 0x0FA
1332 field SCB_AVAIL 0x40
1333 field SNSCB_ROLLOVER 0x20
1334 field SDSCB_ROLLOVER 0x10
1335 mask SCB_QSIZE 0x07
1336 mask SCB_QSIZE_256 0x06
1337 dont_generate_debug_code
1338 }
1340 register DFF_THRSH {
1341 address 0x0FB
1342 mask WR_DFTHRSH 0x70
1343 mask RD_DFTHRSH 0x07
1344 mask RD_DFTHRSH_MIN 0x00
1345 mask RD_DFTHRSH_25 0x01
1346 mask RD_DFTHRSH_50 0x02
1347 mask RD_DFTHRSH_63 0x03
1348 mask RD_DFTHRSH_75 0x04
1349 mask RD_DFTHRSH_85 0x05
1350 mask RD_DFTHRSH_90 0x06
1351 mask RD_DFTHRSH_MAX 0x07
1352 mask WR_DFTHRSH_MIN 0x00
1353 mask WR_DFTHRSH_25 0x10
1354 mask WR_DFTHRSH_50 0x20
1355 mask WR_DFTHRSH_63 0x30
1356 mask WR_DFTHRSH_75 0x40
1357 mask WR_DFTHRSH_85 0x50
1358 mask WR_DFTHRSH_90 0x60
1359 mask WR_DFTHRSH_MAX 0x70
1360 count 4
1361 dont_generate_debug_code
1362 }
1364 register SG_CACHE_PRE {
1365 access_mode WO
1366 address 0x0fc
1367 mask SG_ADDR_MASK 0xf8
1368 field LAST_SEG 0x02
1369 field LAST_SEG_DONE 0x01
1370 dont_generate_debug_code
1371 }
1373 register SG_CACHE_SHADOW {
1374 access_mode RO
1375 address 0x0fc
1376 mask SG_ADDR_MASK 0xf8
1377 field LAST_SEG 0x02
1378 field LAST_SEG_DONE 0x01
1379 dont_generate_debug_code
1380 }
1381 /* ---------------------- Scratch RAM Offsets ------------------------- */
1382 /* These offsets are either to values that are initialized by the board's
1383 * BIOS or are specified by the sequencer code.
1384 *
1385 * The host adapter card (at least the BIOS) uses 20-2f for SCSI
1386 * device information, 32-33 and 5a-5f as well. As it turns out, the
1387 * BIOS trashes 20-2f, writing the synchronous negotiation results
1388 * on top of the BIOS values, so we re-use those for our per-target
1389 * scratchspace (actually a value that can be copied directly into
1390 * SCSIRATE). The kernel driver will enable synchronous negotiation
1391 * for all targets that have a value other than 0 in the lower four
1392 * bits of the target scratch space. This should work regardless of
1393 * whether the bios has been installed.
1394 */
1396 scratch_ram {
1397 address 0x020
1398 size 58
1400 /*
1401 * 1 byte per target starting at this address for configuration values
1402 */
1403 BUSY_TARGETS {
1404 alias TARG_SCSIRATE
1405 size 16
1406 dont_generate_debug_code
1407 }
1408 /*
1409 * Bit vector of targets that have ULTRA enabled as set by
1410 * the BIOS. The Sequencer relies on a per-SCB field to
1411 * control whether to enable Ultra transfers or not. During
1412 * initialization, we read this field and reuse it for 2
1413 * entries in the busy target table.
1414 */
1415 ULTRA_ENB {
1416 alias CMDSIZE_TABLE
1417 size 2
1418 count 2
1419 dont_generate_debug_code
1420 }
1421 /*
1422 * Bit vector of targets that have disconnection disabled as set by
1423 * the BIOS. The Sequencer relies in a per-SCB field to control the
1424 * disconnect priveldge. During initialization, we read this field
1425 * and reuse it for 2 entries in the busy target table.
1426 */
1427 DISC_DSB {
1428 size 2
1429 count 6
1430 dont_generate_debug_code
1431 }
1432 CMDSIZE_TABLE_TAIL {
1433 size 4
1434 }
1435 /*
1436 * Partial transfer past cacheline end to be
1437 * transferred using an extra S/G.
1438 */
1439 MWI_RESIDUAL {
1440 size 1
1441 dont_generate_debug_code
1442 }
1443 /*
1444 * SCBID of the next SCB to be started by the controller.
1445 */
1446 NEXT_QUEUED_SCB {
1447 size 1
1448 dont_generate_debug_code
1449 }
1450 /*
1451 * Single byte buffer used to designate the type or message
1452 * to send to a target.
1453 */
1454 MSG_OUT {
1455 size 1
1456 dont_generate_debug_code
1457 }
1458 /* Parameters for DMA Logic */
1459 DMAPARAMS {
1460 size 1
1461 count 12
1462 field PRELOADEN 0x80
1463 field WIDEODD 0x40
1464 field SCSIEN 0x20
1465 field SDMAEN 0x10
1466 field SDMAENACK 0x10
1467 field HDMAEN 0x08
1468 field HDMAENACK 0x08
1469 field DIRECTION 0x04 /* Set indicates PCI->SCSI */
1470 field FIFOFLUSH 0x02
1471 field FIFORESET 0x01
1472 dont_generate_debug_code
1473 }
1474 SEQ_FLAGS {
1475 size 1
1476 field NOT_IDENTIFIED 0x80
1477 field NO_CDB_SENT 0x40
1478 field TARGET_CMD_IS_TAGGED 0x40
1479 field DPHASE 0x20
1480 /* Target flags */
1481 field TARG_CMD_PENDING 0x10
1482 field CMDPHASE_PENDING 0x08
1483 field DPHASE_PENDING 0x04
1484 field SPHASE_PENDING 0x02
1485 field NO_DISCONNECT 0x01
1486 }
1487 /*
1488 * Temporary storage for the
1489 * target/channel/lun of a
1490 * reconnecting target
1491 */
1492 SAVED_SCSIID {
1493 size 1
1494 dont_generate_debug_code
1495 }
1496 SAVED_LUN {
1497 size 1
1498 dont_generate_debug_code
1499 }
1500 /*
1501 * The last bus phase as seen by the sequencer.
1502 */
1503 LASTPHASE {
1504 size 1
1505 field CDI 0x80
1506 field IOI 0x40
1507 field MSGI 0x20
1508 mask PHASE_MASK CDI|IOI|MSGI
1509 mask P_DATAOUT 0x00
1510 mask P_DATAIN IOI
1511 mask P_COMMAND CDI
1512 mask P_MESGOUT CDI|MSGI
1513 mask P_STATUS CDI|IOI
1514 mask P_MESGIN CDI|IOI|MSGI
1515 mask P_BUSFREE 0x01
1516 }
1517 /*
1518 * head of list of SCBs awaiting
1519 * selection
1520 */
1521 WAITING_SCBH {
1522 size 1
1523 dont_generate_debug_code
1524 }
1525 /*
1526 * head of list of SCBs that are
1527 * disconnected. Used for SCB
1528 * paging.
1529 */
1530 DISCONNECTED_SCBH {
1531 size 1
1532 dont_generate_debug_code
1533 }
1534 /*
1535 * head of list of SCBs that are
1536 * not in use. Used for SCB paging.
1537 */
1538 FREE_SCBH {
1539 size 1
1540 dont_generate_debug_code
1541 }
1542 /*
1543 * head of list of SCBs that have
1544 * completed but have not been
1545 * put into the qoutfifo.
1546 */
1547 COMPLETE_SCBH {
1548 size 1
1549 }
1550 /*
1551 * Address of the hardware scb array in the host.
1552 */
1553 HSCB_ADDR {
1554 size 4
1555 dont_generate_debug_code
1556 }
1557 /*
1558 * Base address of our shared data with the kernel driver in host
1559 * memory. This includes the qoutfifo and target mode
1560 * incoming command queue.
1561 */
1562 SHARED_DATA_ADDR {
1563 size 4
1564 dont_generate_debug_code
1565 }
1566 KERNEL_QINPOS {
1567 size 1
1568 dont_generate_debug_code
1569 }
1570 QINPOS {
1571 size 1
1572 dont_generate_debug_code
1573 }
1574 QOUTPOS {
1575 size 1
1576 dont_generate_debug_code
1577 }
1578 /*
1579 * Kernel and sequencer offsets into the queue of
1580 * incoming target mode command descriptors. The
1581 * queue is full when the KERNEL_TQINPOS == TQINPOS.
1582 */
1583 KERNEL_TQINPOS {
1584 size 1
1585 dont_generate_debug_code
1586 }
1587 TQINPOS {
1588 size 1
1589 dont_generate_debug_code
1590 }
1591 ARG_1 {
1592 size 1
1593 count 1
1594 mask SEND_MSG 0x80
1595 mask SEND_SENSE 0x40
1596 mask SEND_REJ 0x20
1597 mask MSGOUT_PHASEMIS 0x10
1598 mask EXIT_MSG_LOOP 0x08
1599 mask CONT_MSG_LOOP 0x04
1600 mask CONT_TARG_SESSION 0x02
1601 alias RETURN_1
1602 dont_generate_debug_code
1603 }
1604 ARG_2 {
1605 size 1
1606 alias RETURN_2
1607 dont_generate_debug_code
1608 }
1610 /*
1611 * Snapshot of MSG_OUT taken after each message is sent.
1612 */
1613 LAST_MSG {
1614 size 1
1615 alias TARG_IMMEDIATE_SCB
1616 dont_generate_debug_code
1617 }
1619 /*
1620 * Sequences the kernel driver has okayed for us. This allows
1621 * the driver to do things like prevent initiator or target
1622 * operations.
1623 */
1624 SCSISEQ_TEMPLATE {
1625 size 1
1626 field ENSELO 0x40
1627 field ENSELI 0x20
1628 field ENRSELI 0x10
1629 field ENAUTOATNO 0x08
1630 field ENAUTOATNI 0x04
1631 field ENAUTOATNP 0x02
1632 dont_generate_debug_code
1633 }
1634 }
1636 scratch_ram {
1637 address 0x056
1638 size 4
1639 /*
1640 * These scratch ram locations are initialized by the 274X BIOS.
1641 * We reuse them after capturing the BIOS settings during
1642 * initialization.
1643 */
1645 /*
1646 * The initiator specified tag for this target mode transaction.
1647 */
1648 HA_274_BIOSGLOBAL {
1649 size 1
1650 field HA_274_EXTENDED_TRANS 0x01
1651 alias INITIATOR_TAG
1652 count 1
1653 dont_generate_debug_code
1654 }
1656 SEQ_FLAGS2 {
1657 size 1
1658 field SCB_DMA 0x01
1659 field TARGET_MSG_PENDING 0x02
1660 dont_generate_debug_code
1661 }
1662 }
1664 scratch_ram {
1665 address 0x05a
1666 size 6
1667 /*
1668 * These are reserved registers in the card's scratch ram on the 2742.
1669 * The EISA configuraiton chip is mapped here. On Rev E. of the
1670 * aic7770, the sequencer can use this area for scratch, but the
1671 * host cannot directly access these registers. On later chips, this
1672 * area can be read and written by both the host and the sequencer.
1673 * Even on later chips, many of these locations are initialized by
1674 * the BIOS.
1675 */
1676 SCSICONF {
1677 size 1
1678 count 12
1679 field TERM_ENB 0x80
1680 field RESET_SCSI 0x40
1681 field ENSPCHK 0x20
1682 mask HSCSIID 0x07 /* our SCSI ID */
1683 mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */
1684 dont_generate_debug_code
1685 }
1686 INTDEF {
1687 address 0x05c
1688 size 1
1689 count 1
1690 field EDGE_TRIG 0x80
1691 mask VECTOR 0x0f
1692 dont_generate_debug_code
1693 }
1694 HOSTCONF {
1695 address 0x05d
1696 size 1
1697 count 1
1698 dont_generate_debug_code
1699 }
1700 HA_274_BIOSCTRL {
1701 address 0x05f
1702 size 1
1703 count 1
1704 mask BIOSMODE 0x30
1705 mask BIOSDISABLED 0x30
1706 field CHANNEL_B_PRIMARY 0x08
1707 dont_generate_debug_code
1708 }
1709 }
1711 scratch_ram {
1712 address 0x070
1713 size 16
1715 /*
1716 * Per target SCSI offset values for Ultra2 controllers.
1717 */
1718 TARG_OFFSET {
1719 size 16
1720 count 1
1721 dont_generate_debug_code
1722 }
1723 }
1725 const TID_SHIFT 4
1726 const SCB_LIST_NULL 0xff
1727 const TARGET_CMD_CMPLT 0xfe
1729 const CCSGADDR_MAX 0x80
1730 const CCSGRAM_MAXSEGS 16
1732 /* WDTR Message values */
1733 const BUS_8_BIT 0x00
1734 const BUS_16_BIT 0x01
1735 const BUS_32_BIT 0x02
1737 /* Offset maximums */
1738 const MAX_OFFSET_8BIT 0x0f
1739 const MAX_OFFSET_16BIT 0x08
1740 const MAX_OFFSET_ULTRA2 0x7f
1741 const MAX_OFFSET 0x7f
1742 const HOST_MSG 0xff
1744 /* Target mode command processing constants */
1745 const CMD_GROUP_CODE_SHIFT 0x05
1747 const STATUS_BUSY 0x08
1748 const STATUS_QUEUE_FULL 0x28
1749 const TARGET_DATA_IN 1
1751 /*
1752 * Downloaded (kernel inserted) constants
1753 */
1754 /* Offsets into the SCBID array where different data is stored */
1755 const QOUTFIFO_OFFSET download
1756 const QINFIFO_OFFSET download
1757 const CACHESIZE_MASK download
1758 const INVERTED_CACHESIZE_MASK download
1759 const SG_PREFETCH_CNT download
1760 const SG_PREFETCH_ALIGN_MASK download
1761 const SG_PREFETCH_ADDR_MASK download