1402 lines
29 KiB
Reg
1402 lines
29 KiB
Reg
/*
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* Aic7xxx register and scratch ram definitions.
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*
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* Copyright (c) 1994-1998 Justin 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, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. 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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* Where this Software is combined with software released under the terms of
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* the GNU General Public License ("GPL") and the terms of the GPL would require the
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* combined work to also be released under the terms of the GPL, the terms
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* and conditions of this License will apply in addition to those of the
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* GPL with the exception of any terms or conditions of this License that
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* conflict with, or are expressly prohibited by, the GPL.
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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,v 1.4 1997/06/27 19:38:39 gibbs Exp $
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*/
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/*
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* This file is processed by the aic7xxx_asm utility for use in assembling
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* firmware for the aic7xxx family of SCSI host adapters as well as to generate
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* a C header file for use in the kernel portion of the Aic7xxx driver.
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*
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* All page numbers refer to the Adaptec AIC-7770 Data Book available 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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register SCSISEQ {
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address 0x000
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access_mode RW
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bit TEMODE 0x80
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bit ENSELO 0x40
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bit ENSELI 0x20
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bit ENRSELI 0x10
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bit ENAUTOATNO 0x08
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bit ENAUTOATNI 0x04
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bit ENAUTOATNP 0x02
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bit SCSIRSTO 0x01
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}
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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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register SXFRCTL0 {
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address 0x001
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access_mode RW
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bit DFON 0x80
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bit DFPEXP 0x40
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bit FAST20 0x20
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bit CLRSTCNT 0x10
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bit SPIOEN 0x08
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bit SCAMEN 0x04
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bit CLRCHN 0x02
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}
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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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register SXFRCTL1 {
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address 0x002
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access_mode RW
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bit BITBUCKET 0x80
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bit SWRAPEN 0x40
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bit ENSPCHK 0x20
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mask STIMESEL 0x18
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bit ENSTIMER 0x04
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bit ACTNEGEN 0x02
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bit STPWEN 0x01 /* Powered Termination */
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}
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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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register SCSISIGI {
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address 0x003
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access_mode RO
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bit CDI 0x80
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bit IOI 0x40
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bit MSGI 0x20
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bit ATNI 0x10
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bit SELI 0x08
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bit BSYI 0x04
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bit REQI 0x02
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bit ACKI 0x01
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/*
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* Possible phases in SCSISIGI
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*/
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mask PHASE_MASK CDI|IOI|MSGI
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mask P_DATAOUT 0x00
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mask P_DATAIN IOI
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mask P_COMMAND CDI
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mask P_MESGOUT CDI|MSGI
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mask P_STATUS CDI|IOI
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mask P_MESGIN CDI|IOI|MSGI
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}
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/*
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* SCSI Control 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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register SCSISIGO {
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address 0x003
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access_mode WO
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bit CDO 0x80
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bit IOO 0x40
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bit MSGO 0x20
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bit ATNO 0x10
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bit SELO 0x08
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bit BSYO 0x04
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bit REQO 0x02
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bit ACKO 0x01
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/*
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* Possible phases to write into SCSISIG0
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*/
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mask PHASE_MASK CDI|IOI|MSGI
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mask P_DATAOUT 0x00
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mask P_DATAIN IOI
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mask P_COMMAND CDI
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mask P_MESGOUT CDI|MSGI
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mask P_STATUS CDI|IOI
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mask P_MESGIN CDI|IOI|MSGI
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}
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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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register SCSIRATE {
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address 0x004
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access_mode RW
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bit WIDEXFER 0x80 /* Wide transfer control */
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mask SXFR 0x70 /* Sync transfer rate */
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mask SXFR_ULTRA2 0x7f /* Sync transfer rate */
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mask SOFS 0x0f /* Sync offset */
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}
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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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register SCSIID {
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address 0x005
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access_mode RW
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mask TID 0xf0 /* Target ID mask */
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mask OID 0x0f /* Our ID mask */
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/*
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* SCSI Maximum Offset (p. 4-61 aic7890/91 Data Book)
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* The aic7890/91 allow an offset of up to 127 transfers in both wide
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* and narrow mode.
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*/
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alias SCSIOFFSET
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mask SOFS_ULTRA2 0x7f /* Sync offset U2 chips */
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}
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/*
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* SCSI Latched Data (p. 3-19).
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* Read/Write latches 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 asynchronouse data phase transfer.
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*/
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register SCSIDATL {
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address 0x006
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access_mode RW
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}
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register SCSIDATH {
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address 0x007
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access_mode RW
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}
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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 transferred
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* across the SCSI bus. The counter is decremented only once
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* the data has been safely transferred. SDONE in SSTAT0 is
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* set when STCNT goes to 0
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*/
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register STCNT {
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address 0x008
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size 3
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access_mode RW
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}
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/*
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* Option Mode Register (Alternate Mode) (p. 5-198)
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* This register is used to set certain options on Ultra3 based chips.
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* The chip must be in alternate mode (bit ALT_MODE in SFUNCT must be set)
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*/
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register OPTIONMODE {
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address 0x008
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access_mode RW
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bit AUTORATEEN 0x80
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bit AUTOACKEN 0x40
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bit ATNMGMNTEN 0x20
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bit BUSFREEREV 0x10
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bit EXPPHASEDIS 0x08
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bit SCSIDATL_IMGEN 0x04
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bit AUTO_MSGOUT_DE 0x02
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bit DIS_MSGIN_DUALEDGE 0x01
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}
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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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register CLRSINT0 {
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address 0x00b
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access_mode WO
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bit CLRSELDO 0x40
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bit CLRSELDI 0x20
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bit CLRSELINGO 0x10
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bit CLRSWRAP 0x08
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bit CLRSPIORDY 0x02
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}
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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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register SSTAT0 {
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address 0x00b
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access_mode RO
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bit TARGET 0x80 /* Board acting as target */
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bit SELDO 0x40 /* Selection Done */
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bit SELDI 0x20 /* Board has been selected */
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bit SELINGO 0x10 /* Selection In Progress */
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bit SWRAP 0x08 /* 24bit counter wrap */
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bit IOERR 0x08 /* LVD Tranceiver mode changed */
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bit SDONE 0x04 /* STCNT = 0x000000 */
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bit SPIORDY 0x02 /* SCSI PIO Ready */
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bit DMADONE 0x01 /* DMA transfer completed */
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}
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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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register CLRSINT1 {
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address 0x00c
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access_mode WO
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bit CLRSELTIMEO 0x80
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bit CLRATNO 0x40
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bit CLRSCSIRSTI 0x20
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bit CLRBUSFREE 0x08
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bit CLRSCSIPERR 0x04
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bit CLRPHASECHG 0x02
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bit CLRREQINIT 0x01
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}
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/*
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* SCSI Status 1 (p. 3-24)
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*/
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register SSTAT1 {
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address 0x00c
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access_mode RO
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bit SELTO 0x80
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bit ATNTARG 0x40
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bit SCSIRSTI 0x20
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bit PHASEMIS 0x10
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bit BUSFREE 0x08
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bit SCSIPERR 0x04
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bit PHASECHG 0x02
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bit REQINIT 0x01
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}
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/*
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* SCSI Status 2 (pp. 3-25,26)
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*/
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register SSTAT2 {
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address 0x00d
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access_mode RO
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bit OVERRUN 0x80
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bit SHVALID 0x40
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bit WIDE_RES 0x20
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bit EXP_ACTIVE 0x10 /* SCSI Expander Active */
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bit CRCVALERR 0x08 /* CRC Value Error */
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bit CRCENDERR 0x04 /* CRC End Error */
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bit CRCREQERR 0x02 /* CRC REQ Error */
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bit DUAL_EDGE_ERROR 0x01 /* Invalid pins for Dual Edge phase */
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mask SFCNT 0x1f
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}
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/*
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* SCSI Status 3 (p. 3-26)
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*/
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register SSTAT3 {
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address 0x00e
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access_mode RO
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mask SCSICNT 0xf0
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mask OFFCNT 0x0f
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}
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/*
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* SCSI ID for the aic7890/91 chips
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*/
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register SCSIID_ULTRA2 {
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address 0x00f
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access_mode RW
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mask TID 0xf0 /* Target ID mask */
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mask OID 0x0f /* Our ID mask */
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}
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/*
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* SCSI Interrupt Mode 1 (p. 3-28)
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* Setting any bit will enable the corresponding function
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* in SIMODE0 to interrupt via the IRQ pin.
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*/
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register SIMODE0 {
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address 0x010
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access_mode RW
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bit ENSELDO 0x40
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bit ENSELDI 0x20
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bit ENSELINGO 0x10
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bit ENSWRAP 0x08
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bit ENIOERR 0x08 /* LVD Tranceiver mode changes */
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bit ENSDONE 0x04
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bit ENSPIORDY 0x02
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bit ENDMADONE 0x01
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}
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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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register SIMODE1 {
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address 0x011
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access_mode RW
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bit ENSELTIMO 0x80
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bit ENATNTARG 0x40
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bit ENSCSIRST 0x20
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bit ENPHASEMIS 0x10
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bit ENBUSFREE 0x08
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bit ENSCSIPERR 0x04
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bit ENPHASECHG 0x02
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bit ENREQINIT 0x01
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}
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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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register SCSIBUSL {
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address 0x012
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access_mode RO
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}
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register SCSIBUSH {
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address 0x013
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access_mode RO
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}
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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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* transferred 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 transferred since HADDR
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* can be skewed by write ahead.
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*/
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register SHADDR {
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address 0x014
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size 4
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access_mode RO
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}
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/*
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* Selection Timeout Timer (p. 3-30)
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*/
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register SELTIMER {
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address 0x018
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access_mode RW
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bit STAGE6 0x20
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bit STAGE5 0x10
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bit STAGE4 0x08
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bit STAGE3 0x04
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bit STAGE2 0x02
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bit STAGE1 0x01
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}
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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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|
register SELID {
|
|
address 0x019
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access_mode RW
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mask SELID_MASK 0xf0
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|
bit ONEBIT 0x08
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|
}
|
|
|
|
/*
|
|
* Serial Port I/O Cabability register (p. 4-95 aic7860 Data Book)
|
|
* Indicates if external logic has been attached to the chip to
|
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* perform the tasks of accessing a serial eeprom, testing termination
|
|
* strength, and performing cable detection. On the aic7860, most of
|
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* these features are handled on chip, but on the aic7855 an attached
|
|
* aic3800 does the grunt work.
|
|
*/
|
|
register SPIOCAP {
|
|
address 0x01b
|
|
access_mode RW
|
|
bit SOFT1 0x80
|
|
bit SOFT0 0x40
|
|
bit SOFTCMDEN 0x20
|
|
bit HAS_BRDCTL 0x10 /* External Board control */
|
|
bit SEEPROM 0x08 /* External serial eeprom logic */
|
|
bit EEPROM 0x04 /* Writable external BIOS ROM */
|
|
bit ROM 0x02 /* Logic for accessing external ROM */
|
|
bit SSPIOCPS 0x01 /* Termination and cable detection */
|
|
}
|
|
|
|
/*
|
|
* SCSI Block Control (p. 3-32)
|
|
* Controls Bus type and channel selection. In a twin channel configuration
|
|
* addresses 0x00-0x1e are gated to the appropriate channel based on this
|
|
* register. SELWIDE allows for the coexistence of 8bit and 16bit devices
|
|
* on a wide bus.
|
|
*/
|
|
register SBLKCTL {
|
|
address 0x01f
|
|
access_mode RW
|
|
bit DIAGLEDEN 0x80 /* Aic78X0 only */
|
|
bit DIAGLEDON 0x40 /* Aic78X0 only */
|
|
bit AUTOFLUSHDIS 0x20
|
|
bit SELBUSB 0x08
|
|
bit ENAB40 0x08 /* LVD transceiver active */
|
|
bit ENAB20 0x04 /* SE/HVD transceiver active */
|
|
bit SELWIDE 0x02
|
|
bit XCVR 0x01 /* External transceiver active */
|
|
}
|
|
|
|
/*
|
|
* Sequencer Control (p. 3-33)
|
|
* Error detection mode and speed configuration
|
|
*/
|
|
register SEQCTL {
|
|
address 0x060
|
|
access_mode RW
|
|
bit PERRORDIS 0x80
|
|
bit PAUSEDIS 0x40
|
|
bit FAILDIS 0x20
|
|
bit FASTMODE 0x10
|
|
bit BRKADRINTEN 0x08
|
|
bit STEP 0x04
|
|
bit SEQRESET 0x02
|
|
bit LOADRAM 0x01
|
|
}
|
|
|
|
/*
|
|
* Sequencer RAM Data (p. 3-34)
|
|
* Single byte window into the Scratch Ram area starting at the address
|
|
* specified by SEQADDR0 and SEQADDR1. To write a full word, simply write
|
|
* four bytes in succession. The SEQADDRs will increment after the most
|
|
* significant byte is written
|
|
*/
|
|
register SEQRAM {
|
|
address 0x061
|
|
access_mode RW
|
|
}
|
|
|
|
/*
|
|
* Sequencer Address Registers (p. 3-35)
|
|
* Only the first bit of SEQADDR1 holds addressing information
|
|
*/
|
|
register SEQADDR0 {
|
|
address 0x062
|
|
access_mode RW
|
|
}
|
|
|
|
register SEQADDR1 {
|
|
address 0x063
|
|
access_mode RW
|
|
mask SEQADDR1_MASK 0x01
|
|
}
|
|
|
|
/*
|
|
* Accumulator
|
|
* We cheat by passing arguments in the Accumulator up to the kernel driver
|
|
*/
|
|
register ACCUM {
|
|
address 0x064
|
|
access_mode RW
|
|
accumulator
|
|
}
|
|
|
|
register SINDEX {
|
|
address 0x065
|
|
access_mode RW
|
|
sindex
|
|
}
|
|
|
|
register DINDEX {
|
|
address 0x066
|
|
access_mode RW
|
|
}
|
|
|
|
register ALLONES {
|
|
address 0x069
|
|
access_mode RO
|
|
allones
|
|
}
|
|
|
|
register ALLZEROS {
|
|
address 0x06a
|
|
access_mode RO
|
|
allzeros
|
|
}
|
|
|
|
register NONE {
|
|
address 0x06a
|
|
access_mode WO
|
|
none
|
|
}
|
|
|
|
register FLAGS {
|
|
address 0x06b
|
|
access_mode RO
|
|
bit ZERO 0x02
|
|
bit CARRY 0x01
|
|
}
|
|
|
|
register SINDIR {
|
|
address 0x06c
|
|
access_mode RO
|
|
}
|
|
|
|
register DINDIR {
|
|
address 0x06d
|
|
access_mode WO
|
|
}
|
|
|
|
register FUNCTION1 {
|
|
address 0x06e
|
|
access_mode RW
|
|
}
|
|
|
|
register STACK {
|
|
address 0x06f
|
|
access_mode RO
|
|
}
|
|
|
|
/*
|
|
* Board Control (p. 3-43)
|
|
*/
|
|
register BCTL {
|
|
address 0x084
|
|
access_mode RW
|
|
bit ACE 0x08
|
|
bit ENABLE 0x01
|
|
}
|
|
|
|
register DSCOMMAND0 {
|
|
address 0x084
|
|
access_mode RW
|
|
bit CACHETHEN 0x80
|
|
bit DPARCKEN 0x40
|
|
bit MPARCKEN 0x20
|
|
bit EXTREQLCK 0x10
|
|
bit INTSCBRAMSEL 0x08
|
|
bit RAMPS 0x04
|
|
bit USCBSIZE32 0x02
|
|
bit CIOPARCKEN 0x01
|
|
}
|
|
|
|
/*
|
|
* On the aic78X0 chips, Board Control is replaced by the DSCommand
|
|
* register (p. 4-64)
|
|
*/
|
|
register DSCOMMAND {
|
|
address 0x084
|
|
access_mode RW
|
|
bit CACHETHEN 0x80 /* Cache Threshold enable */
|
|
bit DPARCKEN 0x40 /* Data Parity Check Enable */
|
|
bit MPARCKEN 0x20 /* Memory Parity Check Enable */
|
|
bit EXTREQLCK 0x10 /* External Request Lock */
|
|
}
|
|
|
|
/*
|
|
* Bus On/Off Time (p. 3-44)
|
|
*/
|
|
register BUSTIME {
|
|
address 0x085
|
|
access_mode RW
|
|
mask BOFF 0xf0
|
|
mask BON 0x0f
|
|
}
|
|
|
|
/*
|
|
* Bus Speed (p. 3-45)
|
|
*/
|
|
register BUSSPD {
|
|
address 0x086
|
|
access_mode RW
|
|
mask DFTHRSH 0xc0
|
|
mask STBOFF 0x38
|
|
mask STBON 0x07
|
|
mask DFTHRSH_100 0xc0
|
|
}
|
|
|
|
/*
|
|
* Host Control (p. 3-47) R/W
|
|
* Overall host control of the device.
|
|
*/
|
|
register HCNTRL {
|
|
address 0x087
|
|
access_mode RW
|
|
bit POWRDN 0x40
|
|
bit SWINT 0x10
|
|
bit IRQMS 0x08
|
|
bit PAUSE 0x04
|
|
bit INTEN 0x02
|
|
bit CHIPRST 0x01
|
|
bit CHIPRSTACK 0x01
|
|
}
|
|
|
|
/*
|
|
* Host Address (p. 3-48)
|
|
* This register contains the address of the byte about
|
|
* to be transferred across the host bus.
|
|
*/
|
|
register HADDR {
|
|
address 0x088
|
|
size 4
|
|
access_mode RW
|
|
}
|
|
|
|
register HCNT {
|
|
address 0x08c
|
|
size 3
|
|
access_mode RW
|
|
}
|
|
|
|
/*
|
|
* SCB Pointer (p. 3-49)
|
|
* Gate one of the four SCBs into the SCBARRAY window.
|
|
*/
|
|
register SCBPTR {
|
|
address 0x090
|
|
access_mode RW
|
|
}
|
|
|
|
/*
|
|
* Interrupt Status (p. 3-50)
|
|
* Status for system interrupts
|
|
*/
|
|
register INTSTAT {
|
|
address 0x091
|
|
access_mode RW
|
|
bit BRKADRINT 0x08
|
|
bit SCSIINT 0x04
|
|
bit CMDCMPLT 0x02
|
|
bit SEQINT 0x01
|
|
mask BAD_PHASE SEQINT /* unknown scsi bus phase */
|
|
mask SEND_REJECT 0x10|SEQINT /* sending a message reject */
|
|
mask NO_IDENT 0x20|SEQINT /* no IDENTIFY after reconnect*/
|
|
mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */
|
|
mask EXTENDED_MSG 0x40|SEQINT /* Extended message received */
|
|
mask WIDE_RESIDUE 0x50|SEQINT /* need kernel to back up */
|
|
/* the SG array for us */
|
|
mask REJECT_MSG 0x60|SEQINT /* Reject message received */
|
|
mask BAD_STATUS 0x70|SEQINT /* Bad status from target */
|
|
mask RESIDUAL 0x80|SEQINT /* Residual byte count != 0 */
|
|
mask AWAITING_MSG 0xa0|SEQINT /*
|
|
* Kernel requested to specify
|
|
* a message to this target
|
|
* (command was null), so tell
|
|
* it that it can fill the
|
|
* message buffer.
|
|
*/
|
|
mask SEQ_SG_FIXUP 0xb0|SEQINT /* need help with fixing up
|
|
* the sg array pointer after
|
|
* a phasemis with no valid
|
|
* sg elements in the shadow
|
|
* pipeline.
|
|
*/
|
|
mask TRACEPOINT2 0xc0|SEQINT
|
|
mask MSGIN_PHASEMIS 0xd0|SEQINT /*
|
|
* Target changed phase on us
|
|
* when we were expecting
|
|
* another msgin byte.
|
|
*/
|
|
mask DATA_OVERRUN 0xe0|SEQINT /*
|
|
* Target attempted to write
|
|
* beyond the bounds of its
|
|
* command.
|
|
*/
|
|
|
|
mask SEQINT_MASK 0xf0|SEQINT /* SEQINT Status Codes */
|
|
mask INT_PEND (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT)
|
|
}
|
|
|
|
/*
|
|
* Hard Error (p. 3-53)
|
|
* Reporting of catastrophic errors. You usually cannot recover from
|
|
* these without a full board reset.
|
|
*/
|
|
register ERROR {
|
|
address 0x092
|
|
access_mode RO
|
|
bit CIOPARERR 0x80 /* Ultra2 only */
|
|
bit PCIERRSTAT 0x40 /* PCI only */
|
|
bit MPARERR 0x20 /* PCI only */
|
|
bit DPARERR 0x10 /* PCI only */
|
|
bit SQPARERR 0x08
|
|
bit ILLOPCODE 0x04
|
|
bit ILLSADDR 0x02
|
|
bit DSCTMOUT 0x02 /* Ultra3 only */
|
|
bit ILLHADDR 0x01
|
|
}
|
|
|
|
/*
|
|
* Clear Interrupt Status (p. 3-52)
|
|
*/
|
|
register CLRINT {
|
|
address 0x092
|
|
access_mode WO
|
|
bit CLRPARERR 0x10 /* PCI only */
|
|
bit CLRBRKADRINT 0x08
|
|
bit CLRSCSIINT 0x04
|
|
bit CLRCMDINT 0x02
|
|
bit CLRSEQINT 0x01
|
|
}
|
|
|
|
register DFCNTRL {
|
|
address 0x093
|
|
access_mode RW
|
|
bit PRELOADEN 0x80 /* aic7890 only */
|
|
bit WIDEODD 0x40
|
|
bit SCSIEN 0x20
|
|
bit SDMAEN 0x10
|
|
bit SDMAENACK 0x10
|
|
bit HDMAEN 0x08
|
|
bit HDMAENACK 0x08
|
|
bit DIRECTION 0x04
|
|
bit FIFOFLUSH 0x02
|
|
bit FIFORESET 0x01
|
|
}
|
|
|
|
register DFSTATUS {
|
|
address 0x094
|
|
access_mode RO
|
|
bit PRELOAD_AVAIL 0x80
|
|
bit DWORDEMP 0x20
|
|
bit MREQPEND 0x10
|
|
bit HDONE 0x08
|
|
bit DFTHRESH 0x04
|
|
bit FIFOFULL 0x02
|
|
bit FIFOEMP 0x01
|
|
}
|
|
|
|
register DFDAT {
|
|
address 0x099
|
|
access_mode RW
|
|
}
|
|
|
|
/*
|
|
* SCB Auto Increment (p. 3-59)
|
|
* Byte offset into the SCB Array and an optional bit to allow auto
|
|
* incrementing of the address during download and upload operations
|
|
*/
|
|
register SCBCNT {
|
|
address 0x09a
|
|
access_mode RW
|
|
bit SCBAUTO 0x80
|
|
mask SCBCNT_MASK 0x1f
|
|
}
|
|
|
|
/*
|
|
* Queue In FIFO (p. 3-60)
|
|
* Input queue for queued SCBs (commands that the seqencer has yet to start)
|
|
*/
|
|
register QINFIFO {
|
|
address 0x09b
|
|
access_mode RW
|
|
}
|
|
|
|
/*
|
|
* Queue In Count (p. 3-60)
|
|
* Number of queued SCBs
|
|
*/
|
|
register QINCNT {
|
|
address 0x09c
|
|
access_mode RO
|
|
}
|
|
|
|
/*
|
|
* SCSIDATL IMAGE Register (p. 5-104)
|
|
* Write to this register also go to SCSIDATL but this register will preserve
|
|
* the data for later reading as long as the SCSIDATL_IMGEN bit in the
|
|
* OPTIONMODE register is set.
|
|
*/
|
|
register SCSIDATL_IMG {
|
|
address 0x09c
|
|
access_mode RW
|
|
}
|
|
|
|
/*
|
|
* Queue Out FIFO (p. 3-61)
|
|
* Queue of SCBs that have completed and await the host
|
|
*/
|
|
register QOUTFIFO {
|
|
address 0x09d
|
|
access_mode WO
|
|
}
|
|
|
|
/*
|
|
* CRC Control 1 Register (p. 5-105)
|
|
* Control bits for the Ultra 160/m CRC facilities
|
|
*/
|
|
register CRCCONTROL1 {
|
|
address 0x09d
|
|
access_mode RW
|
|
bit CRCONSEEN 0x80 /* CRC ON Single Edge ENable */
|
|
bit CRCVALCHKEN 0x40 /* CRC Value Check Enable */
|
|
bit CRCENDCHKEN 0x20 /* CRC End Check Enable */
|
|
bit CRCREQCHKEN 0x10
|
|
bit TARGCRCENDEN 0x08 /* Enable End CRC transfer when target */
|
|
bit TARGCRCCNTEN 0x04 /* Enable CRC transfer when target */
|
|
}
|
|
|
|
/*
|
|
* Queue Out Count (p. 3-61)
|
|
* Number of queued SCBs in the Out FIFO
|
|
*/
|
|
register QOUTCNT {
|
|
address 0x09e
|
|
access_mode RO
|
|
}
|
|
|
|
/*
|
|
* SCSI Phase Register (p. 5-106)
|
|
* Current bus phase
|
|
*/
|
|
register SCSIPHASE {
|
|
address 0x09e
|
|
access_mode RO
|
|
bit SP_STATUS 0x20
|
|
bit SP_COMMAND 0x10
|
|
bit SP_MSG_IN 0x08
|
|
bit SP_MSG_OUT 0x04
|
|
bit SP_DATA_IN 0x02
|
|
bit SP_DATA_OUT 0x01
|
|
}
|
|
|
|
/*
|
|
* Special Function
|
|
*/
|
|
register SFUNCT {
|
|
address 0x09f
|
|
access_mode RW
|
|
bit ALT_MODE 0x80
|
|
}
|
|
|
|
/*
|
|
* SCB Definition (p. 5-4)
|
|
*/
|
|
scb {
|
|
address 0x0a0
|
|
SCB_CONTROL {
|
|
size 1
|
|
bit MK_MESSAGE 0x80
|
|
bit DISCENB 0x40
|
|
bit TAG_ENB 0x20
|
|
bit DISCONNECTED 0x04
|
|
mask SCB_TAG_TYPE 0x03
|
|
}
|
|
SCB_TCL {
|
|
size 1
|
|
bit SELBUSB 0x08
|
|
mask TID 0xf0
|
|
mask LID 0x07
|
|
}
|
|
SCB_TARGET_STATUS {
|
|
size 1
|
|
}
|
|
SCB_SGCOUNT {
|
|
size 1
|
|
}
|
|
SCB_SGPTR {
|
|
size 4
|
|
}
|
|
SCB_RESID_SGCNT {
|
|
size 1
|
|
}
|
|
SCB_RESID_DCNT {
|
|
size 3
|
|
}
|
|
SCB_DATAPTR {
|
|
size 4
|
|
}
|
|
SCB_DATACNT {
|
|
/*
|
|
* Really only 3 bytes, but padded to make
|
|
* the kernel's job easier.
|
|
*/
|
|
size 4
|
|
}
|
|
SCB_CMDPTR {
|
|
size 4
|
|
}
|
|
SCB_CMDLEN {
|
|
size 1
|
|
}
|
|
SCB_TAG {
|
|
size 1
|
|
}
|
|
SCB_NEXT {
|
|
size 1
|
|
}
|
|
SCB_PREV {
|
|
size 1
|
|
}
|
|
SCB_BUSYTARGETS {
|
|
size 4
|
|
}
|
|
}
|
|
|
|
const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */
|
|
|
|
/* --------------------- AHA-2840-only definitions -------------------- */
|
|
|
|
register SEECTL_2840 {
|
|
address 0x0c0
|
|
access_mode RW
|
|
bit CS_2840 0x04
|
|
bit CK_2840 0x02
|
|
bit DO_2840 0x01
|
|
}
|
|
|
|
register STATUS_2840 {
|
|
address 0x0c1
|
|
access_mode RW
|
|
bit EEPROM_TF 0x80
|
|
mask BIOS_SEL 0x60
|
|
mask ADSEL 0x1e
|
|
bit DI_2840 0x01
|
|
}
|
|
|
|
/* --------------------- AIC-7870-only definitions -------------------- */
|
|
|
|
register DSPCISTATUS {
|
|
address 0x086
|
|
mask DFTHRSH_100 0xc0
|
|
}
|
|
|
|
register CCHADDR {
|
|
address 0x0E0
|
|
size 8
|
|
}
|
|
|
|
register CCHCNT {
|
|
address 0x0E8
|
|
}
|
|
|
|
register CCSGRAM {
|
|
address 0x0E9
|
|
}
|
|
|
|
register CCSGADDR {
|
|
address 0x0EA
|
|
}
|
|
|
|
register CCSGCTL {
|
|
address 0x0EB
|
|
bit CCSGDONE 0x80
|
|
bit CCSGEN 0x08
|
|
bit FLAG 0x02
|
|
bit CCSGRESET 0x01
|
|
}
|
|
|
|
register CCSCBCNT {
|
|
address 0xEF
|
|
}
|
|
|
|
register CCSCBCTL {
|
|
address 0x0EE
|
|
bit CCSCBDONE 0x80
|
|
bit ARRDONE 0x40 /* SCB Array prefetch done */
|
|
bit CCARREN 0x10
|
|
bit CCSCBEN 0x08
|
|
bit CCSCBDIR 0x04
|
|
bit CCSCBRESET 0x01
|
|
}
|
|
|
|
register CCSCBADDR {
|
|
address 0x0ED
|
|
}
|
|
|
|
register CCSCBRAM {
|
|
address 0xEC
|
|
}
|
|
|
|
register CCSCBPTR {
|
|
address 0x0F1
|
|
}
|
|
|
|
register HNSCB_QOFF {
|
|
address 0x0F4
|
|
}
|
|
|
|
register HESCB_QOFF {
|
|
address 0x0F5
|
|
}
|
|
|
|
register SNSCB_QOFF {
|
|
address 0x0F6
|
|
}
|
|
|
|
register SESCB_QOFF {
|
|
address 0x0F7
|
|
}
|
|
|
|
register SDSCB_QOFF {
|
|
address 0x0F8
|
|
}
|
|
|
|
register QOFF_CTLSTA {
|
|
address 0x0FA
|
|
bit ESTABLISH_SCB_AVAIL 0x80
|
|
bit SCB_AVAIL 0x40
|
|
bit SNSCB_ROLLOVER 0x20
|
|
bit SDSCB_ROLLOVER 0x10
|
|
bit SESCB_ROLLOVER 0x08
|
|
mask SCB_QSIZE 0x07
|
|
mask SCB_QSIZE_256 0x06
|
|
}
|
|
|
|
register DFF_THRSH {
|
|
address 0x0FB
|
|
mask WR_DFTHRSH 0x70
|
|
mask RD_DFTHRSH 0x07
|
|
mask RD_DFTHRSH_MIN 0x00
|
|
mask RD_DFTHRSH_25 0x01
|
|
mask RD_DFTHRSH_50 0x02
|
|
mask RD_DFTHRSH_63 0x03
|
|
mask RD_DFTHRSH_75 0x04
|
|
mask RD_DFTHRSH_85 0x05
|
|
mask RD_DFTHRSH_90 0x06
|
|
mask RD_DFTHRSH_MAX 0x07
|
|
mask WR_DFTHRSH_MIN 0x00
|
|
mask WR_DFTHRSH_25 0x10
|
|
mask WR_DFTHRSH_50 0x20
|
|
mask WR_DFTHRSH_63 0x30
|
|
mask WR_DFTHRSH_75 0x40
|
|
mask WR_DFTHRSH_85 0x50
|
|
mask WR_DFTHRSH_90 0x60
|
|
mask WR_DFTHRSH_MAX 0x70
|
|
}
|
|
|
|
register SG_CACHEPTR {
|
|
access_mode RW
|
|
address 0x0fc
|
|
mask SG_USER_DATA 0xfc
|
|
bit LAST_SEG 0x02
|
|
bit LAST_SEG_DONE 0x01
|
|
}
|
|
|
|
register BRDCTL {
|
|
address 0x01d
|
|
bit BRDDAT7 0x80
|
|
bit BRDDAT6 0x40
|
|
bit BRDDAT5 0x20
|
|
bit BRDSTB 0x10
|
|
bit BRDCS 0x08
|
|
bit BRDRW 0x04
|
|
bit BRDCTL1 0x02
|
|
bit BRDCTL0 0x01
|
|
/* 7890 Definitions */
|
|
bit BRDDAT4 0x10
|
|
bit BRDDAT3 0x08
|
|
bit BRDDAT2 0x04
|
|
bit BRDRW_ULTRA2 0x02
|
|
bit BRDSTB_ULTRA2 0x01
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
register SEECTL {
|
|
address 0x01e
|
|
bit EXTARBACK 0x80
|
|
bit EXTARBREQ 0x40
|
|
bit SEEMS 0x20
|
|
bit SEERDY 0x10
|
|
bit SEECS 0x08
|
|
bit SEECK 0x04
|
|
bit SEEDO 0x02
|
|
bit 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.
|
|
*/
|
|
|
|
scratch_ram {
|
|
address 0x020
|
|
|
|
/*
|
|
* 1 byte per target starting at this address for configuration values
|
|
*/
|
|
TARG_SCSIRATE {
|
|
size 16
|
|
}
|
|
/*
|
|
* Bit vector of targets that have ULTRA enabled.
|
|
*/
|
|
ULTRA_ENB {
|
|
size 2
|
|
}
|
|
/*
|
|
* Bit vector of targets that have disconnection disabled.
|
|
*/
|
|
DISC_DSB {
|
|
size 2
|
|
}
|
|
/*
|
|
* Single byte buffer used to designate the type or message
|
|
* to send to a target.
|
|
*/
|
|
MSG_OUT {
|
|
size 1
|
|
}
|
|
/* Parameters for DMA Logic */
|
|
DMAPARAMS {
|
|
size 1
|
|
bit PRELOADEN 0x80
|
|
bit WIDEODD 0x40
|
|
bit SCSIEN 0x20
|
|
bit SDMAEN 0x10
|
|
bit SDMAENACK 0x10
|
|
bit HDMAEN 0x08
|
|
bit HDMAENACK 0x08
|
|
bit DIRECTION 0x04
|
|
bit FIFOFLUSH 0x02
|
|
bit FIFORESET 0x01
|
|
}
|
|
SEQ_FLAGS {
|
|
size 1
|
|
bit IDENTIFY_SEEN 0x80
|
|
bit SCBPTR_VALID 0x20
|
|
bit DPHASE 0x10
|
|
bit AMTARGET 0x08
|
|
bit WIDE_BUS 0x02
|
|
bit TWIN_BUS 0x01
|
|
}
|
|
/*
|
|
* Temporary storage for the
|
|
* target/channel/lun of a
|
|
* reconnecting target
|
|
*/
|
|
SAVED_TCL {
|
|
size 1
|
|
}
|
|
/* Working value of the number of SG segments left */
|
|
SG_COUNT {
|
|
size 1
|
|
}
|
|
/* Working value of SG pointer */
|
|
SG_NEXT {
|
|
size 4
|
|
}
|
|
/*
|
|
* The last bus phase as seen by the sequencer.
|
|
*/
|
|
LASTPHASE {
|
|
size 1
|
|
bit CDI 0x80
|
|
bit IOI 0x40
|
|
bit MSGI 0x20
|
|
mask PHASE_MASK CDI|IOI|MSGI
|
|
mask P_DATAOUT 0x00
|
|
mask P_DATAIN IOI
|
|
mask P_COMMAND CDI
|
|
mask P_MESGOUT CDI|MSGI
|
|
mask P_STATUS CDI|IOI
|
|
mask P_MESGIN CDI|IOI|MSGI
|
|
mask P_BUSFREE 0x01
|
|
}
|
|
/*
|
|
* head of list of SCBs awaiting
|
|
* selection
|
|
*/
|
|
WAITING_SCBH {
|
|
size 1
|
|
}
|
|
/*
|
|
* head of list of SCBs that are
|
|
* disconnected. Used for SCB
|
|
* paging.
|
|
*/
|
|
DISCONNECTED_SCBH {
|
|
size 1
|
|
}
|
|
/*
|
|
* head of list of SCBs that are
|
|
* not in use. Used for SCB paging.
|
|
*/
|
|
FREE_SCBH {
|
|
size 1
|
|
}
|
|
/*
|
|
* Address of the hardware scb array in the host.
|
|
*/
|
|
HSCB_ADDR {
|
|
size 4
|
|
}
|
|
/*
|
|
* Address of the 256 byte array storing the SCBID of outstanding
|
|
* untagged SCBs indexed by TCL.
|
|
*/
|
|
SCBID_ADDR {
|
|
size 4
|
|
}
|
|
/*
|
|
* Address of the array of command descriptors used to store
|
|
* information about incoming selections.
|
|
*/
|
|
TMODE_CMDADDR {
|
|
size 4
|
|
}
|
|
KERNEL_QINPOS {
|
|
size 1
|
|
}
|
|
QINPOS {
|
|
size 1
|
|
}
|
|
QOUTPOS {
|
|
size 1
|
|
}
|
|
/*
|
|
* Offset into the command descriptor array for the next
|
|
* available desciptor to use.
|
|
*/
|
|
TMODE_CMDADDR_NEXT {
|
|
size 1
|
|
}
|
|
ARG_1 {
|
|
size 1
|
|
mask SEND_MSG 0x80
|
|
mask SEND_SENSE 0x40
|
|
mask SEND_REJ 0x20
|
|
mask MSGOUT_PHASEMIS 0x10
|
|
alias RETURN_1
|
|
}
|
|
ARG_2 {
|
|
size 1
|
|
alias RETURN_2
|
|
}
|
|
|
|
/*
|
|
* Snapshot of MSG_OUT taken after each message is sent.
|
|
*/
|
|
LAST_MSG {
|
|
size 1
|
|
}
|
|
|
|
/*
|
|
* Number of times we have filled the CCSGRAM with prefetched
|
|
* SG elements.
|
|
*/
|
|
PREFETCH_CNT {
|
|
size 1
|
|
}
|
|
|
|
|
|
/*
|
|
* These are reserved registers in 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.
|
|
*/
|
|
SCSICONF {
|
|
address 0x05a
|
|
size 1
|
|
bit TERM_ENB 0x80
|
|
bit RESET_SCSI 0x40
|
|
mask HSCSIID 0x07 /* our SCSI ID */
|
|
mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */
|
|
}
|
|
HOSTCONF {
|
|
address 0x05d
|
|
size 1
|
|
}
|
|
HA_274_BIOSCTRL {
|
|
address 0x05f
|
|
size 1
|
|
mask BIOSMODE 0x30
|
|
mask BIOSDISABLED 0x30
|
|
bit CHANNEL_B_PRIMARY 0x08
|
|
}
|
|
/*
|
|
* Per target SCSI offset values for Ultra2 controllers.
|
|
*/
|
|
TARG_OFFSET {
|
|
address 0x070
|
|
size 16
|
|
}
|
|
}
|
|
|
|
const SCB_LIST_NULL 0xff
|
|
|
|
const CCSGADDR_MAX 0x80
|
|
const CCSGRAM_MAXSEGS 16
|
|
|
|
/* Offsets into the SCBID array where different data is stored */
|
|
const UNTAGGEDSCB_OFFSET 0
|
|
const QOUTFIFO_OFFSET 1
|
|
const QINFIFO_OFFSET 2
|
|
|
|
/* WDTR Message values */
|
|
const BUS_8_BIT 0x00
|
|
const BUS_16_BIT 0x01
|
|
const BUS_32_BIT 0x02
|
|
|
|
/* Offset maximums */
|
|
const MAX_OFFSET_8BIT 0x0f
|
|
const MAX_OFFSET_16BIT 0x08
|
|
const MAX_OFFSET_ULTRA2 0x7f
|
|
const HOST_MSG 0xff
|
|
|
|
/* Target mode command processing constants */
|
|
const CMD_GROUP_CODE_SHIFT 0x05
|
|
const CMD_GROUP0_BYTE_DELTA -4
|
|
const CMD_GROUP2_BYTE_DELTA -6
|
|
const CMD_GROUP4_BYTE_DELTA 4
|
|
const CMD_GROUP5_BYTE_DELTA 11
|
|
|
|
/*
|
|
* Downloaded (kernel inserted) constants
|
|
*/
|
|
|
|
/*
|
|
* Number of command descriptors in the command descriptor array.
|
|
*/
|
|
const TMODE_NUMCMDS download
|