Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/scsi/aic7xxx/aic7xxx.reg b/drivers/scsi/aic7xxx/aic7xxx.reg
new file mode 100644
index 0000000..810ec70
--- /dev/null
+++ b/drivers/scsi/aic7xxx/aic7xxx.reg
@@ -0,0 +1,1594 @@
+/*
+ * Aic7xxx register and scratch ram definitions.
+ *
+ * Copyright (c) 1994-2001 Justin T. Gibbs.
+ * Copyright (c) 2000-2001 Adaptec Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions, and the following disclaimer,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ * of any contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ * $FreeBSD$
+ */
+VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic7xxx.reg#39 $"
+
+/*
+ * This file is processed by the aic7xxx_asm utility for use in assembling
+ * firmware for the aic7xxx family of SCSI host adapters as well as to generate
+ * a C header file for use in the kernel portion of the Aic7xxx driver.
+ *
+ * All page numbers refer to the Adaptec AIC-7770 Data Book available from
+ * Adaptec's Technical Documents Department 1-800-934-2766
+ */
+
+/*
+ * SCSI Sequence Control (p. 3-11).
+ * Each bit, when set starts a specific SCSI sequence on the bus
+ */
+register SCSISEQ {
+ address 0x000
+ access_mode RW
+ field TEMODE 0x80
+ field ENSELO 0x40
+ field ENSELI 0x20
+ field ENRSELI 0x10
+ field ENAUTOATNO 0x08
+ field ENAUTOATNI 0x04
+ field ENAUTOATNP 0x02
+ field SCSIRSTO 0x01
+}
+
+/*
+ * SCSI Transfer Control 0 Register (pp. 3-13).
+ * Controls the SCSI module data path.
+ */
+register SXFRCTL0 {
+ address 0x001
+ access_mode RW
+ field DFON 0x80
+ field DFPEXP 0x40
+ field FAST20 0x20
+ field CLRSTCNT 0x10
+ field SPIOEN 0x08
+ field SCAMEN 0x04
+ field CLRCHN 0x02
+}
+
+/*
+ * SCSI Transfer Control 1 Register (pp. 3-14,15).
+ * Controls the SCSI module data path.
+ */
+register SXFRCTL1 {
+ address 0x002
+ access_mode RW
+ field BITBUCKET 0x80
+ field SWRAPEN 0x40
+ field ENSPCHK 0x20
+ mask STIMESEL 0x18
+ field ENSTIMER 0x04
+ field ACTNEGEN 0x02
+ field STPWEN 0x01 /* Powered Termination */
+}
+
+/*
+ * SCSI Control Signal Read Register (p. 3-15).
+ * Reads the actual state of the SCSI bus pins
+ */
+register SCSISIGI {
+ address 0x003
+ access_mode RO
+ field CDI 0x80
+ field IOI 0x40
+ field MSGI 0x20
+ field ATNI 0x10
+ field SELI 0x08
+ field BSYI 0x04
+ field REQI 0x02
+ field ACKI 0x01
+/*
+ * Possible phases in SCSISIGI
+ */
+ mask PHASE_MASK CDI|IOI|MSGI
+ mask P_DATAOUT 0x00
+ mask P_DATAIN IOI
+ mask P_DATAOUT_DT P_DATAOUT|MSGI
+ mask P_DATAIN_DT P_DATAIN|MSGI
+ mask P_COMMAND CDI
+ mask P_MESGOUT CDI|MSGI
+ mask P_STATUS CDI|IOI
+ mask P_MESGIN CDI|IOI|MSGI
+}
+
+/*
+ * SCSI Control Signal Write Register (p. 3-16).
+ * Writing to this register modifies the control signals on the bus. Only
+ * those signals that are allowed in the current mode (Initiator/Target) are
+ * asserted.
+ */
+register SCSISIGO {
+ address 0x003
+ access_mode WO
+ field CDO 0x80
+ field IOO 0x40
+ field MSGO 0x20
+ field ATNO 0x10
+ field SELO 0x08
+ field BSYO 0x04
+ field REQO 0x02
+ field ACKO 0x01
+/*
+ * Possible phases to write into SCSISIG0
+ */
+ 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
+}
+
+/*
+ * SCSI Rate Control (p. 3-17).
+ * Contents of this register determine the Synchronous SCSI data transfer
+ * rate and the maximum synchronous Req/Ack offset. An offset of 0 in the
+ * SOFS (3:0) bits disables synchronous data transfers. Any offset value
+ * greater than 0 enables synchronous transfers.
+ */
+register SCSIRATE {
+ address 0x004
+ access_mode RW
+ field WIDEXFER 0x80 /* Wide transfer control */
+ field ENABLE_CRC 0x40 /* CRC for D-Phases */
+ field SINGLE_EDGE 0x10 /* Disable DT Transfers */
+ mask SXFR 0x70 /* Sync transfer rate */
+ mask SXFR_ULTRA2 0x0f /* Sync transfer rate */
+ mask SOFS 0x0f /* Sync offset */
+}
+
+/*
+ * SCSI ID (p. 3-18).
+ * Contains the ID of the board and the current target on the
+ * selected channel.
+ */
+register SCSIID {
+ address 0x005
+ access_mode RW
+ mask TID 0xf0 /* Target ID mask */
+ mask TWIN_TID 0x70
+ field TWIN_CHNLB 0x80
+ mask OID 0x0f /* Our ID mask */
+ /*
+ * SCSI Maximum Offset (p. 4-61 aic7890/91 Data Book)
+ * The aic7890/91 allow an offset of up to 127 transfers in both wide
+ * and narrow mode.
+ */
+ alias SCSIOFFSET
+ mask SOFS_ULTRA2 0x7f /* Sync offset U2 chips */
+}
+
+/*
+ * SCSI Latched Data (p. 3-19).
+ * Read/Write latches used to transfer data on the SCSI bus during
+ * Automatic or Manual PIO mode. SCSIDATH can be used for the
+ * upper byte of a 16bit wide asynchronouse data phase transfer.
+ */
+register SCSIDATL {
+ address 0x006
+ access_mode RW
+}
+
+register SCSIDATH {
+ address 0x007
+ access_mode RW
+}
+
+/*
+ * SCSI Transfer Count (pp. 3-19,20)
+ * These registers count down the number of bytes transferred
+ * across the SCSI bus. The counter is decremented only once
+ * the data has been safely transferred. SDONE in SSTAT0 is
+ * set when STCNT goes to 0
+ */
+register STCNT {
+ address 0x008
+ size 3
+ access_mode RW
+}
+
+/* ALT_MODE registers (Ultra2 and Ultra160 chips) */
+register SXFRCTL2 {
+ address 0x013
+ access_mode RW
+ field AUTORSTDIS 0x10
+ field CMDDMAEN 0x08
+ mask ASYNC_SETUP 0x07
+}
+
+/* ALT_MODE register on Ultra160 chips */
+register OPTIONMODE {
+ address 0x008
+ access_mode RW
+ field AUTORATEEN 0x80
+ field AUTOACKEN 0x40
+ field ATNMGMNTEN 0x20
+ field BUSFREEREV 0x10
+ field EXPPHASEDIS 0x08
+ field SCSIDATL_IMGEN 0x04
+ field AUTO_MSGOUT_DE 0x02
+ field DIS_MSGIN_DUALEDGE 0x01
+ mask OPTIONMODE_DEFAULTS AUTO_MSGOUT_DE|DIS_MSGIN_DUALEDGE
+}
+
+/* ALT_MODE register on Ultra160 chips */
+register TARGCRCCNT {
+ address 0x00a
+ size 2
+ access_mode RW
+}
+
+/*
+ * Clear SCSI Interrupt 0 (p. 3-20)
+ * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT0.
+ */
+register CLRSINT0 {
+ address 0x00b
+ access_mode WO
+ field CLRSELDO 0x40
+ field CLRSELDI 0x20
+ field CLRSELINGO 0x10
+ field CLRSWRAP 0x08
+ field CLRIOERR 0x08 /* Ultra2 Only */
+ field CLRSPIORDY 0x02
+}
+
+/*
+ * SCSI Status 0 (p. 3-21)
+ * Contains one set of SCSI Interrupt codes
+ * These are most likely of interest to the sequencer
+ */
+register SSTAT0 {
+ address 0x00b
+ access_mode RO
+ field TARGET 0x80 /* Board acting as target */
+ field SELDO 0x40 /* Selection Done */
+ field SELDI 0x20 /* Board has been selected */
+ field SELINGO 0x10 /* Selection In Progress */
+ field SWRAP 0x08 /* 24bit counter wrap */
+ field IOERR 0x08 /* LVD Tranceiver mode changed */
+ field SDONE 0x04 /* STCNT = 0x000000 */
+ field SPIORDY 0x02 /* SCSI PIO Ready */
+ field DMADONE 0x01 /* DMA transfer completed */
+}
+
+/*
+ * Clear SCSI Interrupt 1 (p. 3-23)
+ * Writing a 1 to a bit clears the associated SCSI Interrupt in SSTAT1.
+ */
+register CLRSINT1 {
+ address 0x00c
+ access_mode WO
+ field CLRSELTIMEO 0x80
+ field CLRATNO 0x40
+ field CLRSCSIRSTI 0x20
+ field CLRBUSFREE 0x08
+ field CLRSCSIPERR 0x04
+ field CLRPHASECHG 0x02
+ field CLRREQINIT 0x01
+}
+
+/*
+ * SCSI Status 1 (p. 3-24)
+ */
+register SSTAT1 {
+ address 0x00c
+ access_mode RO
+ field SELTO 0x80
+ field ATNTARG 0x40
+ field SCSIRSTI 0x20
+ field PHASEMIS 0x10
+ field BUSFREE 0x08
+ field SCSIPERR 0x04
+ field PHASECHG 0x02
+ field REQINIT 0x01
+}
+
+/*
+ * SCSI Status 2 (pp. 3-25,26)
+ */
+register SSTAT2 {
+ address 0x00d
+ access_mode RO
+ field OVERRUN 0x80
+ field SHVALID 0x40 /* Shaddow Layer non-zero */
+ field EXP_ACTIVE 0x10 /* SCSI Expander Active */
+ field CRCVALERR 0x08 /* CRC doesn't match (U3 only) */
+ field CRCENDERR 0x04 /* No terminal CRC packet (U3 only) */
+ field CRCREQERR 0x02 /* Illegal CRC packet req (U3 only) */
+ field DUAL_EDGE_ERR 0x01 /* Incorrect data phase (U3 only) */
+ mask SFCNT 0x1f
+}
+
+/*
+ * SCSI Status 3 (p. 3-26)
+ */
+register SSTAT3 {
+ address 0x00e
+ access_mode RO
+ mask SCSICNT 0xf0
+ mask OFFCNT 0x0f
+ mask U2OFFCNT 0x7f
+}
+
+/*
+ * SCSI ID for the aic7890/91 chips
+ */
+register SCSIID_ULTRA2 {
+ address 0x00f
+ access_mode RW
+ mask TID 0xf0 /* Target ID mask */
+ mask OID 0x0f /* Our ID mask */
+}
+
+/*
+ * SCSI Interrupt Mode 1 (p. 3-28)
+ * Setting any bit will enable the corresponding function
+ * in SIMODE0 to interrupt via the IRQ pin.
+ */
+register SIMODE0 {
+ address 0x010
+ access_mode RW
+ field ENSELDO 0x40
+ field ENSELDI 0x20
+ field ENSELINGO 0x10
+ field ENSWRAP 0x08
+ field ENIOERR 0x08 /* LVD Tranceiver mode changes */
+ field ENSDONE 0x04
+ field ENSPIORDY 0x02
+ field ENDMADONE 0x01
+}
+
+/*
+ * SCSI Interrupt Mode 1 (pp. 3-28,29)
+ * Setting any bit will enable the corresponding function
+ * in SIMODE1 to interrupt via the IRQ pin.
+ */
+register SIMODE1 {
+ address 0x011
+ access_mode RW
+ field ENSELTIMO 0x80
+ field ENATNTARG 0x40
+ field ENSCSIRST 0x20
+ field ENPHASEMIS 0x10
+ field ENBUSFREE 0x08
+ field ENSCSIPERR 0x04
+ field ENPHASECHG 0x02
+ field ENREQINIT 0x01
+}
+
+/*
+ * SCSI Data Bus (High) (p. 3-29)
+ * This register reads data on the SCSI Data bus directly.
+ */
+register SCSIBUSL {
+ address 0x012
+ access_mode RW
+}
+
+register SCSIBUSH {
+ address 0x013
+ access_mode RW
+}
+
+/*
+ * SCSI/Host Address (p. 3-30)
+ * These registers hold the host address for the byte about to be
+ * transferred on the SCSI bus. They are counted up in the same
+ * manner as STCNT is counted down. SHADDR should always be used
+ * to determine the address of the last byte transferred since HADDR
+ * can be skewed by write ahead.
+ */
+register SHADDR {
+ address 0x014
+ size 4
+ access_mode RO
+}
+
+/*
+ * Selection Timeout Timer (p. 3-30)
+ */
+register SELTIMER {
+ address 0x018
+ access_mode RW
+ field STAGE6 0x20
+ field STAGE5 0x10
+ field STAGE4 0x08
+ field STAGE3 0x04
+ field STAGE2 0x02
+ field STAGE1 0x01
+ alias TARGIDIN
+}
+
+/*
+ * Selection/Reselection ID (p. 3-31)
+ * Upper four bits are the device id. The ONEBIT is set when the re/selecting
+ * device did not set its own ID.
+ */
+register SELID {
+ address 0x019
+ access_mode RW
+ mask SELID_MASK 0xf0
+ field ONEBIT 0x08
+}
+
+register SCAMCTL {
+ address 0x01a
+ access_mode RW
+ field ENSCAMSELO 0x80
+ field CLRSCAMSELID 0x40
+ field ALTSTIM 0x20
+ field DFLTTID 0x10
+ mask SCAMLVL 0x03
+}
+
+/*
+ * Target Mode Selecting in ID bitmask (aic7890/91/96/97)
+ */
+register TARGID {
+ address 0x01b
+ size 2
+ access_mode RW
+}
+
+/*
+ * Serial Port I/O Cabability register (p. 4-95 aic7860 Data Book)
+ * Indicates if external logic has been attached to the chip to
+ * 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.
+ */
+register SPIOCAP {
+ address 0x01b
+ access_mode RW
+ field SOFT1 0x80
+ 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 */
+ field SSPIOCPS 0x01 /* Termination and cable detection */
+}
+
+register BRDCTL {
+ address 0x01d
+ field BRDDAT7 0x80
+ field BRDDAT6 0x40
+ field BRDDAT5 0x20
+ field BRDSTB 0x10
+ field BRDCS 0x08
+ field BRDRW 0x04
+ field BRDCTL1 0x02
+ field BRDCTL0 0x01
+ /* 7890 Definitions */
+ field BRDDAT4 0x10
+ field BRDDAT3 0x08
+ field BRDDAT2 0x04
+ field BRDRW_ULTRA2 0x02
+ field 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
+ 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
+ alias TARG_IMMEDIATE_SCB
+ }
+ /*
+ * 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
+ }
+
+ /*
+ * 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