0a44712261
aic7770 >= Rev E, aic7850, aic7860, aic7870, and ai7880 based controllers. Make findSCB safer for non-tagged commands when tagged commands are active on the controller. The symptoms of this problem were "Overlapped commands attempted" messages during error recovery attempts. Compact scratch ram usage. This leaves 8 bytes free for future use. Clean up some comments. aic7xxx_reg.h: Update my copyright.
774 lines
21 KiB
C
774 lines
21 KiB
C
/*
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* Aic7xxx register and scratch ram definitions.
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*
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* Copyright (c) 1994, 1995, 1996 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice immediately at the beginning of the file, without modification,
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* this list of conditions, and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: aic7xxx_reg.h,v 1.7 1996/03/31 03:02:37 gibbs Exp $
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*/
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/*
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* This header is shared by the sequencer code and the kernel level driver.
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*
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* All page numbers refer to the Adaptec AIC-7770 Data Book availible from
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* Adaptec's Technical Documents Department 1-800-934-2766
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*/
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/*
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* SCSI Sequence Control (p. 3-11).
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* Each bit, when set starts a specific SCSI sequence on the bus
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*/
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#define SCSISEQ 0x000
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#define TEMODEO 0x80
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#define ENSELO 0x40
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#define ENSELI 0x20
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#define ENRSELI 0x10
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#define ENAUTOATNO 0x08
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#define ENAUTOATNI 0x04
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#define ENAUTOATNP 0x02
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#define SCSIRSTO 0x01
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/*
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* SCSI Transfer Control 0 Register (pp. 3-13).
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* Controls the SCSI module data path.
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*/
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#define SXFRCTL0 0x001
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#define DFON 0x80
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#define DFPEXP 0x40
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#define ULTRAEN 0x20
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#define CLRSTCNT 0x10
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#define SPIOEN 0x08
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#define SCAMEN 0x04
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#define CLRCHN 0x02
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/* UNUSED 0x01 */
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/*
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* SCSI Transfer Control 1 Register (pp. 3-14,15).
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* Controls the SCSI module data path.
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*/
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#define SXFRCTL1 0x002
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#define BITBUCKET 0x80
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#define SWRAPEN 0x40
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#define ENSPCHK 0x20
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#define STIMESEL 0x18
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#define ENSTIMER 0x04
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#define ACTNEGEN 0x02
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#define STPWEN 0x01 /* Powered Termination */
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/*
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* SCSI Control Signal Read Register (p. 3-15).
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* Reads the actual state of the SCSI bus pins
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*/
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#define SCSISIGI 0x003
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#define CDI 0x80
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#define IOI 0x40
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#define MSGI 0x20
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#define ATNI 0x10
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#define SELI 0x08
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#define BSYI 0x04
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#define REQI 0x02
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#define ACKI 0x01
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/*
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* Possible phases in SCSISIGI
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*/
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#define PHASE_MASK 0xe0
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#define P_DATAOUT 0x00
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#define P_DATAIN 0x40
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#define P_COMMAND 0x80
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#define P_MESGOUT 0xa0
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#define P_STATUS 0xc0
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#define P_MESGIN 0xe0
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/*
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* SCSI Contol Signal Write Register (p. 3-16).
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* Writing to this register modifies the control signals on the bus. Only
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* those signals that are allowed in the current mode (Initiator/Target) are
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* asserted.
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*/
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#define SCSISIGO 0x003
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#define CDO 0x80
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#define IOO 0x40
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#define MSGO 0x20
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#define ATNO 0x10
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#define SELO 0x08
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#define BSYO 0x04
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#define REQO 0x02
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#define ACKO 0x01
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/*
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* SCSI Rate Control (p. 3-17).
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* Contents of this register determine the Synchronous SCSI data transfer
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* rate and the maximum synchronous Req/Ack offset. An offset of 0 in the
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* SOFS (3:0) bits disables synchronous data transfers. Any offset value
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* greater than 0 enables synchronous transfers.
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*/
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#define SCSIRATE 0x004
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#define WIDEXFER 0x80 /* Wide transfer control */
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#define SXFR 0x70 /* Sync transfer rate */
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#define SOFS 0x0f /* Sync offset */
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/*
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* SCSI ID (p. 3-18).
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* Contains the ID of the board and the current target on the
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* selected channel.
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*/
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#define SCSIID 0x005
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#define TID 0xf0 /* Target ID mask */
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#define OID 0x0f /* Our ID mask */
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/*
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* SCSI Latched Data (p. 3-19).
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* Read/Write latchs used to transfer data on the SCSI bus during
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* Automatic or Manual PIO mode. SCSIDATH can be used for the
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* upper byte of a 16bit wide asyncronouse data phase transfer.
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*/
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#define SCSIDATL 0x006
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#define SCSIDATH 0x007
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/*
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* SCSI Transfer Count (pp. 3-19,20)
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* These registers count down the number of bytes transfered
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* across the SCSI bus. The counter is decremented only once
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* the data has been safely transfered. SDONE in SSTAT0 is
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* set when STCNT goes to 0
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*/
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#define STCNT 0x008
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#define STCNT0 0x008
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#define STCNT1 0x009
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#define STCNT2 0x00a
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/*
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* Clear SCSI Interrupt 0 (p. 3-20)
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* Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT0.
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*/
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#define CLRSINT0 0x00b
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#define CLRSELDO 0x40
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#define CLRSELDI 0x20
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#define CLRSELINGO 0x10
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#define CLRSWRAP 0x08
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/* UNUSED 0x04 */
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#define CLRSPIORDY 0x02
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/* UNUSED 0x01 */
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/*
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* SCSI Status 0 (p. 3-21)
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* Contains one set of SCSI Interrupt codes
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* These are most likely of interest to the sequencer
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*/
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#define SSTAT0 0x00b
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#define TARGET 0x80 /* Board acting as target */
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#define SELDO 0x40 /* Selection Done */
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#define SELDI 0x20 /* Board has been selected */
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#define SELINGO 0x10 /* Selection In Progress */
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#define SWRAP 0x08 /* 24bit counter wrap */
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#define SDONE 0x04 /* STCNT = 0x000000 */
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#define SPIORDY 0x02 /* SCSI PIO Ready */
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#define DMADONE 0x01 /* DMA transfer completed */
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/*
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* Clear SCSI Interrupt 1 (p. 3-23)
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* Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT1.
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*/
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#define CLRSINT1 0x00c
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#define CLRSELTIMEO 0x80
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#define CLRATNO 0x40
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#define CLRSCSIRSTI 0x20
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/* UNUSED 0x10 */
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#define CLRBUSFREE 0x08
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#define CLRSCSIPERR 0x04
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#define CLRPHASECHG 0x02
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#define CLRREQINIT 0x01
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/*
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* SCSI Status 1 (p. 3-24)
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*/
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#define SSTAT1 0x00c
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#define SELTO 0x80
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#define ATNTARG 0x40
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#define SCSIRSTI 0x20
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#define PHASEMIS 0x10
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#define BUSFREE 0x08
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#define SCSIPERR 0x04
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#define PHASECHG 0x02
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#define REQINIT 0x01
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/*
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* SCSI Interrupt Mode 1 (pp. 3-28,29)
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* Setting any bit will enable the corresponding function
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* in SIMODE1 to interrupt via the IRQ pin.
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*/
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#define SIMODE1 0x011
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#define ENSELTIMO 0x80
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#define ENATNTARG 0x40
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#define ENSCSIRST 0x20
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#define ENPHASEMIS 0x10
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#define ENBUSFREE 0x08
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#define ENSCSIPERR 0x04
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#define ENPHASECHG 0x02
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#define ENREQINIT 0x01
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/*
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* SCSI Data Bus (High) (p. 3-29)
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* This register reads data on the SCSI Data bus directly.
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*/
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#define SCSIBUSL 0x012
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#define SCSIBUSH 0x013
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/*
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* SCSI/Host Address (p. 3-30)
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* These registers hold the host address for the byte about to be
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* transfered on the SCSI bus. They are counted up in the same
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* manner as STCNT is counted down. SHADDR should always be used
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* to determine the address of the last byte transfered since HADDR
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* can be squewed by write ahead.
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*/
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#define SHADDR 0x014
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#define SHADDR0 0x014
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#define SHADDR1 0x015
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#define SHADDR2 0x016
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#define SHADDR3 0x017
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/*
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* Selection/Reselection ID (p. 3-31)
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* Upper four bits are the device id. The ONEBIT is set when the re/selecting
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* device did not set its own ID.
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*/
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#define SELID 0x019
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#define SELID_MASK 0xf0
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#define ONEBIT 0x08
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/* UNUSED 0x07 */
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/*
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* SCSI Block Control (p. 3-32)
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* Controls Bus type and channel selection. In a twin channel configuration
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* addresses 0x00-0x1e are gated to the appropriate channel based on this
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* register. SELWIDE allows for the coexistence of 8bit and 16bit devices
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* on a wide bus.
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*/
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#define SBLKCTL 0x01f
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#define DIAGLEDEN 0x80 /* Aic78X0 only */
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#define DIAGLEDON 0x40 /* Aic78X0 only */
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#define AUTOFLUSHDIS 0x20
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/* UNUSED 0x10 */
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#define SELBUS_MASK 0x0a
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#define SELBUSB 0x08
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/* UNUSED 0x04 */
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#define SELWIDE 0x02
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/* UNUSED 0x01 */
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#define SELNARROW 0x00
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/*
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* Sequencer Control (p. 3-33)
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* Error detection mode and speed configuration
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*/
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#define SEQCTL 0x060
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#define PERRORDIS 0x80
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#define PAUSEDIS 0x40
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#define FAILDIS 0x20
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#define FASTMODE 0x10
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#define BRKADRINTEN 0x08
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#define STEP 0x04
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#define SEQRESET 0x02
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#define LOADRAM 0x01
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/*
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* Sequencer RAM Data (p. 3-34)
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* Single byte window into the Scratch Ram area starting at the address
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* specified by SEQADDR0 and SEQADDR1. To write a full word, simply write
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* four bytes in sucessesion. The SEQADDRs will increment after the most
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* significant byte is written
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*/
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#define SEQRAM 0x061
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/*
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* Sequencer Address Registers (p. 3-35)
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* Only the first bit of SEQADDR1 holds addressing information
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*/
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#define SEQADDR0 0x062
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#define SEQADDR1 0x063
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#define SEQADDR1_MASK 0x01
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/*
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* Accumulator
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* We cheat by passing arguments in the Accumulator up to the kernel driver
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*/
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#define ACCUM 0x064
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#define SINDEX 0x065
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#define DINDEX 0x066
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#define ALLZEROS 0x06a
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#define NONE 0x06a
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#define SINDIR 0x06c
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#define DINDIR 0x06d
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#define FUNCTION1 0x06e
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/*
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* Host Address (p. 3-48)
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* This register contains the address of the byte about
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* to be transfered across the host bus.
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*/
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#define HADDR 0x088
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#define HADDR0 0x088
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#define HADDR1 0x089
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#define HADDR2 0x08a
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#define HADDR3 0x08b
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#define HCNT 0x08c
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#define HCNT0 0x08c
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#define HCNT1 0x08d
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#define HCNT2 0x08e
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/*
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* SCB Pointer (p. 3-49)
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* Gate one of the four SCBs into the SCBARRAY window.
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*/
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#define SCBPTR 0x090
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/*
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* Board Control (p. 3-43)
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*/
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#define BCTL 0x084
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/* RSVD 0xf0 */
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#define ACE 0x08 /* Support for external processors */
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/* RSVD 0x06 */
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#define ENABLE 0x01
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/*
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* On the aic78X0 chips, Board Control is replaced by the DSCommand
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* register (p. 4-64)
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*/
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#define DSCOMMAND 0x084
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#define CACHETHEN 0x80 /* Cache Threshold enable */
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#define DPARCKEN 0x40 /* Data Parity Check Enable */
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#define MPARCKEN 0x20 /* Memory Parity Check Enable */
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#define EXTREQLCK 0x10 /* External Request Lock */
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/*
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* Bus On/Off Time (p. 3-44)
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*/
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#define BUSTIME 0x085
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#define BOFF 0xf0
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#define BON 0x0f
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#define BOFF_60BCLKS 0xf0
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/*
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* Bus Speed (p. 3-45)
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*/
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#define BUSSPD 0x086
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#define DFTHRSH 0xc0
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#define STBOFF 0x38
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#define STBON 0x07
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#define DFTHRSH_100 0xc0
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/*
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* Host Control (p. 3-47) R/W
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* Overal host control of the device.
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*/
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#define HCNTRL 0x087
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/* UNUSED 0x80 */
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#define POWRDN 0x40
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/* UNUSED 0x20 */
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#define SWINT 0x10
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#define IRQMS 0x08
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#define PAUSE 0x04
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#define INTEN 0x02
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#define CHIPRST 0x01
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/*
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* Interrupt Status (p. 3-50)
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* Status for system interrupts
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*/
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#define INTSTAT 0x091
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#define SEQINT_MASK 0xf1 /* SEQINT Status Codes */
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#define BAD_PHASE 0x01 /* unknown scsi bus phase */
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#define SEND_REJECT 0x11 /* sending a message reject */
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#define NO_IDENT 0x21 /* no IDENTIFY after reconnect*/
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#define NO_MATCH 0x31 /* no cmd match for reconnect */
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#define SDTR_MSG 0x41 /* SDTR message received */
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#define WDTR_MSG 0x51 /* WDTR message received */
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#define REJECT_MSG 0x61 /* Reject message received */
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#define BAD_STATUS 0x71 /* Bad status from target */
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#define RESIDUAL 0x81 /* Residual byte count != 0 */
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#define ABORT_TAG 0x91 /* Sent an ABORT_TAG message */
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#define AWAITING_MSG 0xa1 /*
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* Kernel requested to specify
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* a message to this target
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* (command was null), so tell
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* it that it can fill the
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* message buffer.
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*/
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#define IMMEDDONE 0xb1 /*
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* An immediate command has
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* completed
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*/
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#define MSG_BUFFER_BUSY 0xc1 /*
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* Sequencer wants to use the
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* message buffer, but it
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* already contains a message
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*/
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#define MSGIN_PHASEMIS 0xd1 /*
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* Target changed phase on us
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* when we were expecting
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* another msgin byte.
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*/
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#define BRKADRINT 0x08
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#define SCSIINT 0x04
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#define CMDCMPLT 0x02
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#define SEQINT 0x01
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#define INT_PEND (BRKADRINT | SEQINT | SCSIINT | CMDCMPLT)
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/*
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* Hard Error (p. 3-53)
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* Reporting of catastrophic errors. You usually cannot recover from
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* these without a full board reset.
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*/
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#define ERROR 0x092
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/* UNUSED 0xf0 */
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#define PARERR 0x08
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#define ILLOPCODE 0x04
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#define ILLSADDR 0x02
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#define ILLHADDR 0x01
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/*
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* Clear Interrupt Status (p. 3-52)
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*/
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#define CLRINT 0x092
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#define CLRBRKADRINT 0x08
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#define CLRSCSIINT 0x04
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#define CLRCMDINT 0x02
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#define CLRSEQINT 0x01
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#define DFCNTRL 0x093
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#define WIDEODD 0x40
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#define SCSIEN 0x20
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#define SDMAEN 0x10
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#define SDMAENACK 0x10
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#define HDMAEN 0x08
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#define HDMAENACK 0x08
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#define DIRECTION 0x04
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#define FIFOFLUSH 0x02
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#define FIFORESET 0x01
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#define DFSTATUS 0x094
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#define HDONE 0x08
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#define FIFOEMP 0x01
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#define DFDAT 0x099
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/*
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* SCB Auto Increment (p. 3-59)
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* Byte offset into the SCB Array and an optional bit to allow auto
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* incrementing of the address during download and upload operations
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*/
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#define SCBCNT 0x09a
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#define SCBAUTO 0x80
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#define SCBCNT_MASK 0x1f
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/*
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* Queue In FIFO (p. 3-60)
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* Input queue for queued SCBs (commands that the seqencer has yet to start)
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*/
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#define QINFIFO 0x09b
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/*
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* Queue In Count (p. 3-60)
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* Number of queued SCBs
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*/
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#define QINCNT 0x09c
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/*
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* Queue Out FIFO (p. 3-61)
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* Queue of SCBs that have completed and await the host
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*/
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#define QOUTFIFO 0x09d
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/*
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* Queue Out Count (p. 3-61)
|
|
* Number of queued SCBs in the Out FIFO
|
|
*/
|
|
#define QOUTCNT 0x09e
|
|
|
|
/*
|
|
* SCB Definition (p. 5-4)
|
|
* The two reserved bytes at SCBARRAY+1[23] are expected to be set to
|
|
* zero. Bit 3 in SCBARRAY+0 is used as an internal flag to indicate
|
|
* whether or not to DMA an SCB from host ram. This flag prevents the
|
|
* "re-fetching" of transactions that are requed because the target is
|
|
* busy with another command. We also use bits 6 & 7 to indicate whether
|
|
* or not to initiate SDTR or WDTR repectively when starting this command.
|
|
*/
|
|
#define SCBARRAY 0x0a0
|
|
#define SCB_CONTROL 0x0a0
|
|
#define NEEDWDTR 0x80
|
|
#define DISCENB 0x40
|
|
#define TAG_ENB 0x20
|
|
#define NEEDSDTR 0x10
|
|
#define DISCONNECTED 0x04
|
|
#define SCB_TAG_TYPE 0x03
|
|
#define SCB_TCL 0x0a1
|
|
#define SCB_TARGET_STATUS 0x0a2
|
|
#define SCB_SGCOUNT 0x0a3
|
|
#define SCB_SGPTR 0x0a4
|
|
#define SCB_SGPTR0 0x0a4
|
|
#define SCB_SGPTR1 0x0a5
|
|
#define SCB_SGPTR2 0x0a6
|
|
#define SCB_SGPTR3 0x0a7
|
|
#define SCB_RESID_SGCNT 0x0a8
|
|
#define SCB_RESID_DCNT 0x0a9
|
|
#define SCB_RESID_DCNT0 0x0a9
|
|
#define SCB_RESID_DCNT1 0x0aa
|
|
#define SCB_RESID_DCNT2 0x0ab
|
|
#define SCB_DATAPTR 0x0ac
|
|
#define SCB_DATAPTR0 0x0ac
|
|
#define SCB_DATAPTR1 0x0ad
|
|
#define SCB_DATAPTR2 0x0ae
|
|
#define SCB_DATAPTR3 0x0af
|
|
#define SCB_DATACNT 0x0b0
|
|
#define SCB_DATACNT0 0x0b0
|
|
#define SCB_DATACNT1 0x0b1
|
|
#define SCB_DATACNT2 0x0b2
|
|
/* UNUSED - QUAD PADDING 0x0b3 */
|
|
#define SCB_CMDPTR 0x0b4
|
|
#define SCB_CMDPTR0 0x0b4
|
|
#define SCB_CMDPTR1 0x0b5
|
|
#define SCB_CMDPTR2 0x0b6
|
|
#define SCB_CMDPTR3 0x0b7
|
|
#define SCB_CMDLEN 0x0b8
|
|
#define SCB_TAG 0x0b9
|
|
#define SCB_NEXT 0x0ba
|
|
#define SCB_PREV 0x0bb
|
|
|
|
#ifdef linux
|
|
#define SG_SIZEOF 0x0c /* sizeof(struct scatterlist) */
|
|
#else
|
|
#define SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */
|
|
#endif
|
|
|
|
/* --------------------- AHA-2840-only definitions -------------------- */
|
|
|
|
#define SEECTL_2840 0x0c0
|
|
/* UNUSED 0xf8 */
|
|
#define CS_2840 0x04
|
|
#define CK_2840 0x02
|
|
#define DO_2840 0x01
|
|
|
|
#define STATUS_2840 0x0c1
|
|
#define EEPROM_TF 0x80
|
|
#define BIOS_SEL 0x60
|
|
#define ADSEL 0x1e
|
|
#define DI_2840 0x01
|
|
|
|
/* --------------------- AIC-7870-only definitions -------------------- */
|
|
|
|
#define DSPCISTATUS 0x086
|
|
|
|
/*
|
|
* Serial EEPROM Control (p. 4-92 in 7870 Databook)
|
|
* Controls the reading and writing of an external serial 1-bit
|
|
* EEPROM Device. In order to access the serial EEPROM, you must
|
|
* first set the SEEMS bit that generates a request to the memory
|
|
* port for access to the serial EEPROM device. When the memory
|
|
* port is not busy servicing another request, it reconfigures
|
|
* to allow access to the serial EEPROM. When this happens, SEERDY
|
|
* gets set high to verify that the memory port access has been
|
|
* granted.
|
|
*
|
|
* After successful arbitration for the memory port, the SEECS bit of
|
|
* the SEECTL register is connected to the chip select. The SEECK,
|
|
* SEEDO, and SEEDI are connected to the clock, data out, and data in
|
|
* lines respectively. The SEERDY bit of SEECTL is useful in that it
|
|
* gives us an 800 nsec timer. After a write to the SEECTL register,
|
|
* the SEERDY goes high 800 nsec later. The one exception to this is
|
|
* when we first request access to the memory port. The SEERDY goes
|
|
* high to signify that access has been granted and, for this case, has
|
|
* no implied timing.
|
|
*
|
|
* See 93cx6.c for detailed information on the protocol necessary to
|
|
* read the serial EEPROM.
|
|
*/
|
|
#define SEECTL 0x01e
|
|
#define EXTARBACK 0x80
|
|
#define EXTARBREQ 0x40
|
|
#define SEEMS 0x20
|
|
#define SEERDY 0x10
|
|
#define SEECS 0x08
|
|
#define SEECK 0x04
|
|
#define SEEDO 0x02
|
|
#define SEEDI 0x01
|
|
|
|
/* ---------------------- Scratch RAM Offsets ------------------------- */
|
|
/* These offsets are either to values that are initialized by the board's
|
|
* BIOS or are specified by the sequencer code.
|
|
*
|
|
* The host adapter card (at least the BIOS) uses 20-2f for SCSI
|
|
* device information, 32-33 and 5a-5f as well. As it turns out, the
|
|
* BIOS trashes 20-2f, writing the synchronous negotiation results
|
|
* on top of the BIOS values, so we re-use those for our per-target
|
|
* scratchspace (actually a value that can be copied directly into
|
|
* SCSIRATE). The kernel driver will enable synchronous negotiation
|
|
* for all targets that have a value other than 0 in the lower four
|
|
* bits of the target scratch space. This should work regardless of
|
|
* whether the bios has been installed.
|
|
*/
|
|
|
|
/*
|
|
* 1 byte per target starting at this address for configuration values
|
|
*/
|
|
#define TARG_SCRATCH 0x020
|
|
|
|
/*
|
|
* The sequencer will stick the frist byte of any rejected message here so
|
|
* we can see what is getting thrown away. Extended messages put the
|
|
* extended message type in REJBYTE_EXT.
|
|
*/
|
|
#define REJBYTE 0x030
|
|
#define REJBYTE_EXT 0x031
|
|
|
|
/*
|
|
* Bit vector of targets that have disconnection disabled.
|
|
*/
|
|
#define DISC_DSB 0x032
|
|
#define DISC_DSB_A 0x032
|
|
#define DISC_DSB_B 0x033
|
|
|
|
/*
|
|
* Length of pending message
|
|
*/
|
|
#define MSG_LEN 0x034
|
|
|
|
/* We reserve 8bytes to store outgoing messages */
|
|
#define MSG0 0x035
|
|
#define COMP_MSG0 0xcb /* 2's complement of MSG0 */
|
|
#define MSG1 0x036
|
|
#define MSG2 0x037
|
|
#define MSG3 0x038
|
|
#define MSG4 0x039
|
|
#define MSG5 0x03a
|
|
#define MSG6 0x03b
|
|
#define MSG7 0x03c
|
|
|
|
/*
|
|
* These are offsets into the card's scratch ram. Some of the values are
|
|
* specified in the AHA2742 technical reference manual and are initialized
|
|
* by the BIOS at boot time.
|
|
*/
|
|
#define LASTPHASE 0x03d
|
|
#define ARG_1 0x03e
|
|
#define MAXOFFSET 0x01
|
|
#define RETURN_1 0x03f
|
|
#define SEND_WDTR 0x80
|
|
#define SEND_SDTR 0x60
|
|
#define SEND_SENSE 0x40
|
|
#define SEND_REJ 0x20
|
|
#define SCB_PAGEDIN 0x10
|
|
|
|
#define SIGSTATE 0x040
|
|
|
|
#define DMAPARAMS 0x041 /* Parameters for DMA Logic */
|
|
|
|
#define SG_COUNT 0x042
|
|
#define SG_NEXT 0x043 /* working value of SG pointer */
|
|
#define SG_NEXT0 0x043
|
|
#define SG_NEXT1 0x044
|
|
#define SG_NEXT2 0x045
|
|
#define SG_NEXT3 0x046
|
|
|
|
#define SCBCOUNT 0x047 /*
|
|
* Number of SCBs supported by
|
|
* this card.
|
|
*/
|
|
#define COMP_SCBCOUNT 0x048 /*
|
|
* Two's compliment of SCBCOUNT
|
|
*/
|
|
#define QCNTMASK 0x049 /*
|
|
* Mask of bits to test against
|
|
* when looking at the Queue Count
|
|
* registers. Works around a bug
|
|
* on aic7850 chips.
|
|
*/
|
|
#define FLAGS 0x04a
|
|
#define SINGLE_BUS 0x00
|
|
#define TWIN_BUS 0x01
|
|
#define WIDE_BUS 0x02
|
|
#define PAGESCBS 0x04
|
|
#define DPHASE 0x10
|
|
#define SELECTED 0x20
|
|
#define IDENTIFY_SEEN 0x40
|
|
#define RESELECTED 0x80
|
|
|
|
#define SAVED_TCL 0x04b /*
|
|
* Temporary storage for the
|
|
* target/channel/lun of a
|
|
* reconnecting target
|
|
*/
|
|
#define ACTIVE_A 0x04c
|
|
#define ACTIVE_B 0x04d
|
|
#define WAITING_SCBH 0x04e /*
|
|
* head of list of SCBs awaiting
|
|
* selection
|
|
*/
|
|
#define DISCONNECTED_SCBH 0x04f /*
|
|
* head of list of SCBs that are
|
|
* disconnected. Used for SCB
|
|
* paging.
|
|
*/
|
|
#define SCB_LIST_NULL 0xff
|
|
|
|
#define SAVED_LINKPTR 0x050
|
|
#define SAVED_SCBPTR 0x051
|
|
|
|
#define SCSICONF 0x05a
|
|
#define HOSTCONF 0x05d
|
|
|
|
#define HA_274_BIOSCTRL 0x05f
|
|
#define BIOSMODE 0x30
|
|
#define BIOSDISABLED 0x30
|
|
|
|
/* Message codes */
|
|
#define MSG_EXTENDED 0x01
|
|
#define MSG_SDTR 0x01
|
|
#define MSG_WDTR 0x03
|
|
#define MSG_SDPTRS 0x02
|
|
#define MSG_RDPTRS 0x03
|
|
#define MSG_DISCONNECT 0x04
|
|
#define MSG_INITIATOR_DET_ERROR 0x05
|
|
#define MSG_ABORT 0x06
|
|
#define MSG_REJECT 0x07
|
|
#define MSG_NOP 0x08
|
|
#define MSG_MSG_PARITY_ERROR 0x09
|
|
#define MSG_BUS_DEVICE_RESET 0x0c
|
|
#define MSG_ABORT_TAG 0x0d
|
|
#define MSG_SIMPLE_TAG 0x20
|
|
#define MSG_IDENTIFY 0x80
|
|
|
|
/* WDTR Message values */
|
|
#define BUS_8_BIT 0x00
|
|
#define BUS_16_BIT 0x01
|
|
#define BUS_32_BIT 0x02
|
|
|
|
#define MAX_OFFSET_8BIT 0x0f
|
|
#define MAX_OFFSET_16BIT 0x08
|