1595 lines
34 KiB
Reg
1595 lines
34 KiB
Reg
/*
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* Aic7xxx register and scratch ram definitions.
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*
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* Copyright (c) 1994-2001 Justin T. Gibbs.
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* Copyright (c) 2000-2001 Adaptec Inc.
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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.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $FreeBSD$
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*/
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VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#40 $"
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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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field TEMODE 0x80
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field ENSELO 0x40
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field ENSELI 0x20
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field ENRSELI 0x10
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field ENAUTOATNO 0x08
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field ENAUTOATNI 0x04
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field ENAUTOATNP 0x02
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field 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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field DFON 0x80
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field DFPEXP 0x40
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field FAST20 0x20
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field CLRSTCNT 0x10
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field SPIOEN 0x08
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field SCAMEN 0x04
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field 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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field BITBUCKET 0x80
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field SWRAPEN 0x40
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field ENSPCHK 0x20
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mask STIMESEL 0x18
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field ENSTIMER 0x04
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field ACTNEGEN 0x02
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field 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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field CDI 0x80
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field IOI 0x40
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field MSGI 0x20
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field ATNI 0x10
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field SELI 0x08
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field BSYI 0x04
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field REQI 0x02
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field 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_DATAOUT_DT P_DATAOUT|MSGI
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mask P_DATAIN_DT P_DATAIN|MSGI
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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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field CDO 0x80
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field IOO 0x40
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field MSGO 0x20
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field ATNO 0x10
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field SELO 0x08
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field BSYO 0x04
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field REQO 0x02
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field 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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field WIDEXFER 0x80 /* Wide transfer control */
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field ENABLE_CRC 0x40 /* CRC for D-Phases */
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field SINGLE_EDGE 0x10 /* Disable DT Transfers */
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mask SXFR 0x70 /* Sync transfer rate */
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mask SXFR_ULTRA2 0x0f /* 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 TWIN_TID 0x70
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field TWIN_CHNLB 0x80
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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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/* ALT_MODE registers (Ultra2 and Ultra160 chips) */
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register SXFRCTL2 {
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address 0x013
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access_mode RW
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field AUTORSTDIS 0x10
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field CMDDMAEN 0x08
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mask ASYNC_SETUP 0x07
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}
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/* ALT_MODE register on Ultra160 chips */
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register OPTIONMODE {
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address 0x008
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access_mode RW
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field AUTORATEEN 0x80
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field AUTOACKEN 0x40
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field ATNMGMNTEN 0x20
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field BUSFREEREV 0x10
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field EXPPHASEDIS 0x08
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field SCSIDATL_IMGEN 0x04
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field AUTO_MSGOUT_DE 0x02
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field DIS_MSGIN_DUALEDGE 0x01
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mask OPTIONMODE_DEFAULTS AUTO_MSGOUT_DE|DIS_MSGIN_DUALEDGE
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}
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/* ALT_MODE register on Ultra160 chips */
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register TARGCRCCNT {
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address 0x00a
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size 2
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access_mode RW
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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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field CLRSELDO 0x40
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field CLRSELDI 0x20
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field CLRSELINGO 0x10
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field CLRSWRAP 0x08
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field CLRIOERR 0x08 /* Ultra2 Only */
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field 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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field TARGET 0x80 /* Board acting as target */
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field SELDO 0x40 /* Selection Done */
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field SELDI 0x20 /* Board has been selected */
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field SELINGO 0x10 /* Selection In Progress */
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field SWRAP 0x08 /* 24bit counter wrap */
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field IOERR 0x08 /* LVD Tranceiver mode changed */
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field SDONE 0x04 /* STCNT = 0x000000 */
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field SPIORDY 0x02 /* SCSI PIO Ready */
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field 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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field CLRSELTIMEO 0x80
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field CLRATNO 0x40
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field CLRSCSIRSTI 0x20
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field CLRBUSFREE 0x08
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field CLRSCSIPERR 0x04
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field CLRPHASECHG 0x02
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field 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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field SELTO 0x80
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field ATNTARG 0x40
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field SCSIRSTI 0x20
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field PHASEMIS 0x10
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field BUSFREE 0x08
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field SCSIPERR 0x04
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field PHASECHG 0x02
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field 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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field OVERRUN 0x80
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field SHVALID 0x40 /* Shaddow Layer non-zero */
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field EXP_ACTIVE 0x10 /* SCSI Expander Active */
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field CRCVALERR 0x08 /* CRC doesn't match (U3 only) */
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field CRCENDERR 0x04 /* No terminal CRC packet (U3 only) */
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field CRCREQERR 0x02 /* Illegal CRC packet req (U3 only) */
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field DUAL_EDGE_ERR 0x01 /* Incorrect data phase (U3 only) */
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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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mask U2OFFCNT 0x7f
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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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field ENSELDO 0x40
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field ENSELDI 0x20
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field ENSELINGO 0x10
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field ENSWRAP 0x08
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field ENIOERR 0x08 /* LVD Tranceiver mode changes */
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field ENSDONE 0x04
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field ENSPIORDY 0x02
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field 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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field ENSELTIMO 0x80
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field ENATNTARG 0x40
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field ENSCSIRST 0x20
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field ENPHASEMIS 0x10
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field ENBUSFREE 0x08
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field ENSCSIPERR 0x04
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field ENPHASECHG 0x02
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field 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 RW
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}
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register SCSIBUSH {
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address 0x013
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access_mode RW
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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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field STAGE6 0x20
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field STAGE5 0x10
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field STAGE4 0x08
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field STAGE3 0x04
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field STAGE2 0x02
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field STAGE1 0x01
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alias TARGIDIN
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}
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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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*/
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register SELID {
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address 0x019
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access_mode RW
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mask SELID_MASK 0xf0
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field ONEBIT 0x08
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}
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register SCAMCTL {
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address 0x01a
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access_mode RW
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field ENSCAMSELO 0x80
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field CLRSCAMSELID 0x40
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field ALTSTIM 0x20
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field DFLTTID 0x10
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mask SCAMLVL 0x03
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}
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/*
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* Target Mode Selecting in ID bitmask (aic7890/91/96/97)
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*/
|
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register TARGID {
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address 0x01b
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size 2
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access_mode RW
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}
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|
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/*
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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
|
|
* these features are handled on chip, but on the aic7855 an attached
|
|
* aic3800 does the grunt work.
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|
*/
|
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register SPIOCAP {
|
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address 0x01b
|
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access_mode RW
|
|
field SOFT1 0x80
|
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field SOFT0 0x40
|
|
field SOFTCMDEN 0x20
|
|
field EXT_BRDCTL 0x10 /* External Board control */
|
|
field SEEPROM 0x08 /* External serial eeprom logic */
|
|
field EEPROM 0x04 /* Writable external BIOS ROM */
|
|
field ROM 0x02 /* Logic for accessing external ROM */
|
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field SSPIOCPS 0x01 /* Termination and cable detection */
|
|
}
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|
|
|
register BRDCTL {
|
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address 0x01d
|
|
field BRDDAT7 0x80
|
|
field BRDDAT6 0x40
|
|
field BRDDAT5 0x20
|
|
field BRDSTB 0x10
|
|
field BRDCS 0x08
|
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field BRDRW 0x04
|
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field BRDCTL1 0x02
|
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field BRDCTL0 0x01
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/* 7890 Definitions */
|
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field BRDDAT4 0x10
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field BRDDAT3 0x08
|
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field BRDDAT2 0x04
|
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field BRDRW_ULTRA2 0x02
|
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field BRDSTB_ULTRA2 0x01
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}
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|
|
|
/*
|
|
* 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
|
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* 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
|
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* granted.
|
|
*
|
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* After successful arbitration for the memory port, the SEECS bit of
|
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* the SEECTL register is connected to the chip select. The SEECK,
|
|
* SEEDO, and SEEDI are connected to the clock, data out, and data in
|
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* 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
|
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* no implied timing.
|
|
*
|
|
* See 93cx6.c for detailed information on the protocol necessary to
|
|
* read the serial EEPROM.
|
|
*/
|
|
register SEECTL {
|
|
address 0x01e
|
|
field EXTARBACK 0x80
|
|
field EXTARBREQ 0x40
|
|
field SEEMS 0x20
|
|
field SEERDY 0x10
|
|
field SEECS 0x08
|
|
field SEECK 0x04
|
|
field SEEDO 0x02
|
|
field SEEDI 0x01
|
|
}
|
|
/*
|
|
* 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
|
|
field DIAGLEDEN 0x80 /* Aic78X0 only */
|
|
field DIAGLEDON 0x40 /* Aic78X0 only */
|
|
field AUTOFLUSHDIS 0x20
|
|
field SELBUSB 0x08
|
|
field ENAB40 0x08 /* LVD transceiver active */
|
|
field ENAB20 0x04 /* SE/HVD transceiver active */
|
|
field SELWIDE 0x02
|
|
field XCVR 0x01 /* External transceiver active */
|
|
}
|
|
|
|
/*
|
|
* Sequencer Control (p. 3-33)
|
|
* Error detection mode and speed configuration
|
|
*/
|
|
register SEQCTL {
|
|
address 0x060
|
|
access_mode RW
|
|
field PERRORDIS 0x80
|
|
field PAUSEDIS 0x40
|
|
field FAILDIS 0x20
|
|
field FASTMODE 0x10
|
|
field BRKADRINTEN 0x08
|
|
field STEP 0x04
|
|
field SEQRESET 0x02
|
|
field 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
|
|
field ZERO 0x02
|
|
field 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
|
|
}
|
|
|
|
const STACK_SIZE 4
|
|
|
|
/*
|
|
* Board Control (p. 3-43)
|
|
*/
|
|
register BCTL {
|
|
address 0x084
|
|
access_mode RW
|
|
field ACE 0x08
|
|
field ENABLE 0x01
|
|
}
|
|
|
|
/*
|
|
* On the aic78X0 chips, Board Control is replaced by the DSCommand
|
|
* register (p. 4-64)
|
|
*/
|
|
register DSCOMMAND0 {
|
|
address 0x084
|
|
access_mode RW
|
|
field CACHETHEN 0x80 /* Cache Threshold enable */
|
|
field DPARCKEN 0x40 /* Data Parity Check Enable */
|
|
field MPARCKEN 0x20 /* Memory Parity Check Enable */
|
|
field EXTREQLCK 0x10 /* External Request Lock */
|
|
/* aic7890/91/96/97 only */
|
|
field INTSCBRAMSEL 0x08 /* Internal SCB RAM Select */
|
|
field RAMPS 0x04 /* External SCB RAM Present */
|
|
field USCBSIZE32 0x02 /* Use 32byte SCB Page Size */
|
|
field CIOPARCKEN 0x01 /* Internal bus parity error enable */
|
|
}
|
|
|
|
register DSCOMMAND1 {
|
|
address 0x085
|
|
access_mode RW
|
|
mask DSLATT 0xfc /* PCI latency timer (non-ultra2) */
|
|
field HADDLDSEL1 0x02 /* Host Address Load Select Bits */
|
|
field HADDLDSEL0 0x01
|
|
}
|
|
|
|
/*
|
|
* Bus On/Off Time (p. 3-44) aic7770 only
|
|
*/
|
|
register BUSTIME {
|
|
address 0x085
|
|
access_mode RW
|
|
mask BOFF 0xf0
|
|
mask BON 0x0f
|
|
}
|
|
|
|
/*
|
|
* Bus Speed (p. 3-45) aic7770 only
|
|
*/
|
|
register BUSSPD {
|
|
address 0x086
|
|
access_mode RW
|
|
mask DFTHRSH 0xc0
|
|
mask STBOFF 0x38
|
|
mask STBON 0x07
|
|
mask DFTHRSH_100 0xc0
|
|
mask DFTHRSH_75 0x80
|
|
}
|
|
|
|
/* aic7850/55/60/70/80/95 only */
|
|
register DSPCISTATUS {
|
|
address 0x086
|
|
mask DFTHRSH_100 0xc0
|
|
}
|
|
|
|
/* aic7890/91/96/97 only */
|
|
register HS_MAILBOX {
|
|
address 0x086
|
|
mask HOST_MAILBOX 0xF0
|
|
mask SEQ_MAILBOX 0x0F
|
|
mask HOST_TQINPOS 0x80 /* Boundary at either 0 or 128 */
|
|
}
|
|
|
|
const HOST_MAILBOX_SHIFT 4
|
|
const SEQ_MAILBOX_SHIFT 0
|
|
|
|
/*
|
|
* Host Control (p. 3-47) R/W
|
|
* Overall host control of the device.
|
|
*/
|
|
register HCNTRL {
|
|
address 0x087
|
|
access_mode RW
|
|
field POWRDN 0x40
|
|
field SWINT 0x10
|
|
field IRQMS 0x08
|
|
field PAUSE 0x04
|
|
field INTEN 0x02
|
|
field CHIPRST 0x01
|
|
field 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 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
|
|
field BRKADRINT 0x08
|
|
field SCSIINT 0x04
|
|
field CMDCMPLT 0x02
|
|
field SEQINT 0x01
|
|
mask BAD_PHASE SEQINT /* unknown scsi bus phase */
|
|
mask SEND_REJECT 0x10|SEQINT /* sending a message reject */
|
|
mask PROTO_VIOLATION 0x20|SEQINT /* SCSI protocol violation */
|
|
mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */
|
|
mask IGN_WIDE_RES 0x40|SEQINT /* Complex IGN Wide Res Msg */
|
|
mask PDATA_REINIT 0x50|SEQINT /*
|
|
* Returned to data phase
|
|
* that requires data
|
|
* transfer pointers to be
|
|
* recalculated from the
|
|
* transfer residual.
|
|
*/
|
|
mask HOST_MSG_LOOP 0x60|SEQINT /*
|
|
* The bus is ready for the
|
|
* host to perform another
|
|
* message transaction. This
|
|
* mechanism is used for things
|
|
* like sync/wide negotiation
|
|
* that require a kernel based
|
|
* message state engine.
|
|
*/
|
|
mask BAD_STATUS 0x70|SEQINT /* Bad status from target */
|
|
mask PERR_DETECTED 0x80|SEQINT /*
|
|
* Either the phase_lock
|
|
* or inb_next routine has
|
|
* noticed a parity error.
|
|
*/
|
|
mask DATA_OVERRUN 0x90|SEQINT /*
|
|
* Target attempted to write
|
|
* beyond the bounds of its
|
|
* command.
|
|
*/
|
|
mask MKMSG_FAILED 0xa0|SEQINT /*
|
|
* Target completed command
|
|
* without honoring our ATN
|
|
* request to issue a message.
|
|
*/
|
|
mask MISSED_BUSFREE 0xb0|SEQINT /*
|
|
* The sequencer never saw
|
|
* the bus go free after
|
|
* either a command complete
|
|
* or disconnect message.
|
|
*/
|
|
mask SCB_MISMATCH 0xc0|SEQINT /*
|
|
* Downloaded SCB's tag does
|
|
* not match the entry we
|
|
* intended to download.
|
|
*/
|
|
mask NO_FREE_SCB 0xd0|SEQINT /*
|
|
* get_free_or_disc_scb failed.
|
|
*/
|
|
mask OUT_OF_RANGE 0xe0|SEQINT
|
|
|
|
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
|
|
field CIOPARERR 0x80 /* Ultra2 only */
|
|
field PCIERRSTAT 0x40 /* PCI only */
|
|
field MPARERR 0x20 /* PCI only */
|
|
field DPARERR 0x10 /* PCI only */
|
|
field SQPARERR 0x08
|
|
field ILLOPCODE 0x04
|
|
field ILLSADDR 0x02
|
|
field ILLHADDR 0x01
|
|
}
|
|
|
|
/*
|
|
* Clear Interrupt Status (p. 3-52)
|
|
*/
|
|
register CLRINT {
|
|
address 0x092
|
|
access_mode WO
|
|
field CLRPARERR 0x10 /* PCI only */
|
|
field CLRBRKADRINT 0x08
|
|
field CLRSCSIINT 0x04
|
|
field CLRCMDINT 0x02
|
|
field CLRSEQINT 0x01
|
|
}
|
|
|
|
register DFCNTRL {
|
|
address 0x093
|
|
access_mode RW
|
|
field PRELOADEN 0x80 /* aic7890 only */
|
|
field WIDEODD 0x40
|
|
field SCSIEN 0x20
|
|
field SDMAEN 0x10
|
|
field SDMAENACK 0x10
|
|
field HDMAEN 0x08
|
|
field HDMAENACK 0x08
|
|
field DIRECTION 0x04
|
|
field FIFOFLUSH 0x02
|
|
field FIFORESET 0x01
|
|
}
|
|
|
|
register DFSTATUS {
|
|
address 0x094
|
|
access_mode RO
|
|
field PRELOAD_AVAIL 0x80
|
|
field DFCACHETH 0x40
|
|
field FIFOQWDEMP 0x20
|
|
field MREQPEND 0x10
|
|
field HDONE 0x08
|
|
field DFTHRESH 0x04
|
|
field FIFOFULL 0x02
|
|
field FIFOEMP 0x01
|
|
}
|
|
|
|
register DFWADDR {
|
|
address 0x95
|
|
access_mode RW
|
|
}
|
|
|
|
register DFRADDR {
|
|
address 0x97
|
|
access_mode RW
|
|
}
|
|
|
|
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
|
|
field 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
|
|
}
|
|
|
|
/*
|
|
* Queue Out FIFO (p. 3-61)
|
|
* Queue of SCBs that have completed and await the host
|
|
*/
|
|
register QOUTFIFO {
|
|
address 0x09d
|
|
access_mode WO
|
|
}
|
|
|
|
register CRCCONTROL1 {
|
|
address 0x09d
|
|
access_mode RW
|
|
field CRCONSEEN 0x80
|
|
field CRCVALCHKEN 0x40
|
|
field CRCENDCHKEN 0x20
|
|
field CRCREQCHKEN 0x10
|
|
field TARGCRCENDEN 0x08
|
|
field TARGCRCCNTEN 0x04
|
|
}
|
|
|
|
|
|
/*
|
|
* Queue Out Count (p. 3-61)
|
|
* Number of queued SCBs in the Out FIFO
|
|
*/
|
|
register QOUTCNT {
|
|
address 0x09e
|
|
access_mode RO
|
|
}
|
|
|
|
register SCSIPHASE {
|
|
address 0x09e
|
|
access_mode RO
|
|
field STATUS_PHASE 0x20
|
|
field COMMAND_PHASE 0x10
|
|
field MSG_IN_PHASE 0x08
|
|
field MSG_OUT_PHASE 0x04
|
|
field DATA_IN_PHASE 0x02
|
|
field DATA_OUT_PHASE 0x01
|
|
mask DATA_PHASE_MASK 0x03
|
|
}
|
|
|
|
/*
|
|
* Special Function
|
|
*/
|
|
register SFUNCT {
|
|
address 0x09f
|
|
access_mode RW
|
|
field ALT_MODE 0x80
|
|
}
|
|
|
|
/*
|
|
* SCB Definition (p. 5-4)
|
|
*/
|
|
scb {
|
|
address 0x0a0
|
|
size 64
|
|
|
|
SCB_CDB_PTR {
|
|
size 4
|
|
alias SCB_RESIDUAL_DATACNT
|
|
alias SCB_CDB_STORE
|
|
}
|
|
SCB_RESIDUAL_SGPTR {
|
|
size 4
|
|
}
|
|
SCB_SCSI_STATUS {
|
|
size 1
|
|
}
|
|
SCB_TARGET_PHASES {
|
|
size 1
|
|
}
|
|
SCB_TARGET_DATA_DIR {
|
|
size 1
|
|
}
|
|
SCB_TARGET_ITAG {
|
|
size 1
|
|
}
|
|
SCB_DATAPTR {
|
|
size 4
|
|
}
|
|
SCB_DATACNT {
|
|
/*
|
|
* The last byte is really the high address bits for
|
|
* the data address.
|
|
*/
|
|
size 4
|
|
field SG_LAST_SEG 0x80 /* In the fourth byte */
|
|
mask SG_HIGH_ADDR_BITS 0x7F /* In the fourth byte */
|
|
}
|
|
SCB_SGPTR {
|
|
size 4
|
|
field SG_RESID_VALID 0x04 /* In the first byte */
|
|
field SG_FULL_RESID 0x02 /* In the first byte */
|
|
field SG_LIST_NULL 0x01 /* In the first byte */
|
|
}
|
|
SCB_CONTROL {
|
|
size 1
|
|
field TARGET_SCB 0x80
|
|
field STATUS_RCVD 0x80
|
|
field DISCENB 0x40
|
|
field TAG_ENB 0x20
|
|
field MK_MESSAGE 0x10
|
|
field ULTRAENB 0x08
|
|
field DISCONNECTED 0x04
|
|
mask SCB_TAG_TYPE 0x03
|
|
}
|
|
SCB_SCSIID {
|
|
size 1
|
|
field TWIN_CHNLB 0x80
|
|
mask TWIN_TID 0x70
|
|
mask TID 0xf0
|
|
mask OID 0x0f
|
|
}
|
|
SCB_LUN {
|
|
field SCB_XFERLEN_ODD 0x80
|
|
mask LID 0x3f
|
|
size 1
|
|
}
|
|
SCB_TAG {
|
|
size 1
|
|
}
|
|
SCB_CDB_LEN {
|
|
size 1
|
|
}
|
|
SCB_SCSIRATE {
|
|
size 1
|
|
}
|
|
SCB_SCSIOFFSET {
|
|
size 1
|
|
}
|
|
SCB_NEXT {
|
|
size 1
|
|
}
|
|
SCB_64_SPARE {
|
|
size 16
|
|
}
|
|
SCB_64_BTT {
|
|
size 16
|
|
}
|
|
}
|
|
|
|
const SCB_UPLOAD_SIZE 32
|
|
const SCB_DOWNLOAD_SIZE 32
|
|
const SCB_DOWNLOAD_SIZE_64 48
|
|
|
|
const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */
|
|
|
|
/* --------------------- AHA-2840-only definitions -------------------- */
|
|
|
|
register SEECTL_2840 {
|
|
address 0x0c0
|
|
access_mode RW
|
|
field CS_2840 0x04
|
|
field CK_2840 0x02
|
|
field DO_2840 0x01
|
|
}
|
|
|
|
register STATUS_2840 {
|
|
address 0x0c1
|
|
access_mode RW
|
|
field EEPROM_TF 0x80
|
|
mask BIOS_SEL 0x60
|
|
mask ADSEL 0x1e
|
|
field DI_2840 0x01
|
|
}
|
|
|
|
/* --------------------- AIC-7870-only definitions -------------------- */
|
|
|
|
register CCHADDR {
|
|
address 0x0E0
|
|
size 8
|
|
}
|
|
|
|
register CCHCNT {
|
|
address 0x0E8
|
|
}
|
|
|
|
register CCSGRAM {
|
|
address 0x0E9
|
|
}
|
|
|
|
register CCSGADDR {
|
|
address 0x0EA
|
|
}
|
|
|
|
register CCSGCTL {
|
|
address 0x0EB
|
|
field CCSGDONE 0x80
|
|
field CCSGEN 0x08
|
|
field SG_FETCH_NEEDED 0x02 /* Bit used for software state */
|
|
field CCSGRESET 0x01
|
|
}
|
|
|
|
register CCSCBCNT {
|
|
address 0xEF
|
|
}
|
|
|
|
register CCSCBCTL {
|
|
address 0x0EE
|
|
field CCSCBDONE 0x80
|
|
field ARRDONE 0x40 /* SCB Array prefetch done */
|
|
field CCARREN 0x10
|
|
field CCSCBEN 0x08
|
|
field CCSCBDIR 0x04
|
|
field CCSCBRESET 0x01
|
|
}
|
|
|
|
register CCSCBADDR {
|
|
address 0x0ED
|
|
}
|
|
|
|
register CCSCBRAM {
|
|
address 0xEC
|
|
}
|
|
|
|
/*
|
|
* SCB bank address (7895/7896/97 only)
|
|
*/
|
|
register SCBBADDR {
|
|
address 0x0F0
|
|
access_mode RW
|
|
}
|
|
|
|
register CCSCBPTR {
|
|
address 0x0F1
|
|
}
|
|
|
|
register HNSCB_QOFF {
|
|
address 0x0F4
|
|
}
|
|
|
|
register SNSCB_QOFF {
|
|
address 0x0F6
|
|
}
|
|
|
|
register SDSCB_QOFF {
|
|
address 0x0F8
|
|
}
|
|
|
|
register QOFF_CTLSTA {
|
|
address 0x0FA
|
|
field SCB_AVAIL 0x40
|
|
field SNSCB_ROLLOVER 0x20
|
|
field SDSCB_ROLLOVER 0x10
|
|
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_CACHE_PRE {
|
|
access_mode WO
|
|
address 0x0fc
|
|
mask SG_ADDR_MASK 0xf8
|
|
field LAST_SEG 0x02
|
|
field LAST_SEG_DONE 0x01
|
|
}
|
|
|
|
register SG_CACHE_SHADOW {
|
|
access_mode RO
|
|
address 0x0fc
|
|
mask SG_ADDR_MASK 0xf8
|
|
field LAST_SEG 0x02
|
|
field LAST_SEG_DONE 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
|
|
size 58
|
|
|
|
/*
|
|
* 1 byte per target starting at this address for configuration values
|
|
*/
|
|
BUSY_TARGETS {
|
|
alias TARG_SCSIRATE
|
|
size 16
|
|
}
|
|
/*
|
|
* Bit vector of targets that have ULTRA enabled as set by
|
|
* the BIOS. The Sequencer relies on a per-SCB field to
|
|
* control whether to enable Ultra transfers or not. During
|
|
* initialization, we read this field and reuse it for 2
|
|
* entries in the busy target table.
|
|
*/
|
|
ULTRA_ENB {
|
|
alias CMDSIZE_TABLE
|
|
size 2
|
|
}
|
|
/*
|
|
* Bit vector of targets that have disconnection disabled as set by
|
|
* the BIOS. The Sequencer relies in a per-SCB field to control the
|
|
* disconnect priveldge. During initialization, we read this field
|
|
* and reuse it for 2 entries in the busy target table.
|
|
*/
|
|
DISC_DSB {
|
|
size 2
|
|
}
|
|
CMDSIZE_TABLE_TAIL {
|
|
size 4
|
|
}
|
|
/*
|
|
* Partial transfer past cacheline end to be
|
|
* transferred using an extra S/G.
|
|
*/
|
|
MWI_RESIDUAL {
|
|
size 1
|
|
}
|
|
/*
|
|
* SCBID of the next SCB to be started by the controller.
|
|
*/
|
|
NEXT_QUEUED_SCB {
|
|
size 1
|
|
}
|
|
/*
|
|
* 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
|
|
field PRELOADEN 0x80
|
|
field WIDEODD 0x40
|
|
field SCSIEN 0x20
|
|
field SDMAEN 0x10
|
|
field SDMAENACK 0x10
|
|
field HDMAEN 0x08
|
|
field HDMAENACK 0x08
|
|
field DIRECTION 0x04 /* Set indicates PCI->SCSI */
|
|
field FIFOFLUSH 0x02
|
|
field FIFORESET 0x01
|
|
}
|
|
SEQ_FLAGS {
|
|
size 1
|
|
field NOT_IDENTIFIED 0x80
|
|
field NO_CDB_SENT 0x40
|
|
field TARGET_CMD_IS_TAGGED 0x40
|
|
field DPHASE 0x20
|
|
/* Target flags */
|
|
field TARG_CMD_PENDING 0x10
|
|
field CMDPHASE_PENDING 0x08
|
|
field DPHASE_PENDING 0x04
|
|
field SPHASE_PENDING 0x02
|
|
field NO_DISCONNECT 0x01
|
|
}
|
|
/*
|
|
* Temporary storage for the
|
|
* target/channel/lun of a
|
|
* reconnecting target
|
|
*/
|
|
SAVED_SCSIID {
|
|
size 1
|
|
}
|
|
SAVED_LUN {
|
|
size 1
|
|
}
|
|
/*
|
|
* The last bus phase as seen by the sequencer.
|
|
*/
|
|
LASTPHASE {
|
|
size 1
|
|
field CDI 0x80
|
|
field IOI 0x40
|
|
field 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
|
|
}
|
|
/*
|
|
* head of list of SCBs that have
|
|
* completed but have not been
|
|
* put into the qoutfifo.
|
|
*/
|
|
COMPLETE_SCBH {
|
|
size 1
|
|
}
|
|
/*
|
|
* Address of the hardware scb array in the host.
|
|
*/
|
|
HSCB_ADDR {
|
|
size 4
|
|
}
|
|
/*
|
|
* Base address of our shared data with the kernel driver in host
|
|
* memory. This includes the qoutfifo and target mode
|
|
* incoming command queue.
|
|
*/
|
|
SHARED_DATA_ADDR {
|
|
size 4
|
|
}
|
|
KERNEL_QINPOS {
|
|
size 1
|
|
}
|
|
QINPOS {
|
|
size 1
|
|
}
|
|
QOUTPOS {
|
|
size 1
|
|
}
|
|
/*
|
|
* Kernel and sequencer offsets into the queue of
|
|
* incoming target mode command descriptors. The
|
|
* queue is full when the KERNEL_TQINPOS == TQINPOS.
|
|
*/
|
|
KERNEL_TQINPOS {
|
|
size 1
|
|
}
|
|
TQINPOS {
|
|
size 1
|
|
}
|
|
ARG_1 {
|
|
size 1
|
|
mask SEND_MSG 0x80
|
|
mask SEND_SENSE 0x40
|
|
mask SEND_REJ 0x20
|
|
mask MSGOUT_PHASEMIS 0x10
|
|
mask EXIT_MSG_LOOP 0x08
|
|
mask CONT_MSG_LOOP 0x04
|
|
mask CONT_TARG_SESSION 0x02
|
|
alias RETURN_1
|
|
}
|
|
ARG_2 {
|
|
size 1
|
|
alias RETURN_2
|
|
}
|
|
|
|
/*
|
|
* Snapshot of MSG_OUT taken after each message is sent.
|
|
*/
|
|
LAST_MSG {
|
|
size 1
|
|
alias TARG_IMMEDIATE_SCB
|
|
}
|
|
|
|
/*
|
|
* Sequences the kernel driver has okayed for us. This allows
|
|
* the driver to do things like prevent initiator or target
|
|
* operations.
|
|
*/
|
|
SCSISEQ_TEMPLATE {
|
|
size 1
|
|
field ENSELO 0x40
|
|
field ENSELI 0x20
|
|
field ENRSELI 0x10
|
|
field ENAUTOATNO 0x08
|
|
field ENAUTOATNI 0x04
|
|
field ENAUTOATNP 0x02
|
|
}
|
|
}
|
|
|
|
scratch_ram {
|
|
address 0x056
|
|
size 4
|
|
/*
|
|
* These scratch ram locations are initialized by the 274X BIOS.
|
|
* We reuse them after capturing the BIOS settings during
|
|
* initialization.
|
|
*/
|
|
|
|
/*
|
|
* The initiator specified tag for this target mode transaction.
|
|
*/
|
|
HA_274_BIOSGLOBAL {
|
|
size 1
|
|
field HA_274_EXTENDED_TRANS 0x01
|
|
alias INITIATOR_TAG
|
|
}
|
|
|
|
SEQ_FLAGS2 {
|
|
size 1
|
|
field SCB_DMA 0x01
|
|
field TARGET_MSG_PENDING 0x02
|
|
}
|
|
}
|
|
|
|
scratch_ram {
|
|
address 0x05a
|
|
size 6
|
|
/*
|
|
* These are reserved registers in the card's scratch ram on the 2742.
|
|
* The EISA configuraiton chip is mapped here. On Rev E. of the
|
|
* aic7770, the sequencer can use this area for scratch, but the
|
|
* host cannot directly access these registers. On later chips, this
|
|
* area can be read and written by both the host and the sequencer.
|
|
* Even on later chips, many of these locations are initialized by
|
|
* the BIOS.
|
|
*/
|
|
SCSICONF {
|
|
size 1
|
|
field TERM_ENB 0x80
|
|
field RESET_SCSI 0x40
|
|
field ENSPCHK 0x20
|
|
mask HSCSIID 0x07 /* our SCSI ID */
|
|
mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */
|
|
}
|
|
INTDEF {
|
|
address 0x05c
|
|
size 1
|
|
field EDGE_TRIG 0x80
|
|
mask VECTOR 0x0f
|
|
}
|
|
HOSTCONF {
|
|
address 0x05d
|
|
size 1
|
|
}
|
|
HA_274_BIOSCTRL {
|
|
address 0x05f
|
|
size 1
|
|
mask BIOSMODE 0x30
|
|
mask BIOSDISABLED 0x30
|
|
field CHANNEL_B_PRIMARY 0x08
|
|
}
|
|
}
|
|
|
|
scratch_ram {
|
|
address 0x070
|
|
size 16
|
|
|
|
/*
|
|
* Per target SCSI offset values for Ultra2 controllers.
|
|
*/
|
|
TARG_OFFSET {
|
|
size 16
|
|
}
|
|
}
|
|
|
|
const TID_SHIFT 4
|
|
const SCB_LIST_NULL 0xff
|
|
const TARGET_CMD_CMPLT 0xfe
|
|
|
|
const CCSGADDR_MAX 0x80
|
|
const CCSGRAM_MAXSEGS 16
|
|
|
|
/* 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 MAX_OFFSET 0x7f
|
|
const HOST_MSG 0xff
|
|
|
|
/* Target mode command processing constants */
|
|
const CMD_GROUP_CODE_SHIFT 0x05
|
|
|
|
const STATUS_BUSY 0x08
|
|
const STATUS_QUEUE_FULL 0x28
|
|
const TARGET_DATA_IN 1
|
|
|
|
/*
|
|
* Downloaded (kernel inserted) constants
|
|
*/
|
|
/* Offsets into the SCBID array where different data is stored */
|
|
const QOUTFIFO_OFFSET download
|
|
const QINFIFO_OFFSET download
|
|
const CACHESIZE_MASK download
|
|
const INVERTED_CACHESIZE_MASK download
|
|
const SG_PREFETCH_CNT download
|
|
const SG_PREFETCH_ALIGN_MASK download
|
|
const SG_PREFETCH_ADDR_MASK download
|