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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/aic7xxx_old
Linux-2.6.12-rc2v2.6.12-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!
Diffstat (limited to 'drivers/scsi/aic7xxx_old')
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx.h28
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx.reg1401
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx.seq1539
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx_proc.c374
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx_reg.h629
-rw-r--r--drivers/scsi/aic7xxx_old/aic7xxx_seq.c817
-rw-r--r--drivers/scsi/aic7xxx_old/scsi_message.h49
-rw-r--r--drivers/scsi/aic7xxx_old/sequencer.h135
8 files changed, 4972 insertions, 0 deletions
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.h b/drivers/scsi/aic7xxx_old/aic7xxx.h
new file mode 100644
index 000000000000..0116c8128a6b
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/aic7xxx.h
@@ -0,0 +1,28 @@
+/*+M*************************************************************************
+ * Adaptec AIC7xxx device driver for Linux.
+ *
+ * Copyright (c) 1994 John Aycock
+ * The University of Calgary Department of Computer Science.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: aic7xxx.h,v 3.2 1996/07/23 03:37:26 deang Exp $
+ *-M*************************************************************************/
+#ifndef _aic7xxx_h
+#define _aic7xxx_h
+
+#define AIC7XXX_H_VERSION "5.2.0"
+
+#endif /* _aic7xxx_h */
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.reg b/drivers/scsi/aic7xxx_old/aic7xxx.reg
new file mode 100644
index 000000000000..f67b4bced01c
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/aic7xxx.reg
@@ -0,0 +1,1401 @@
+/*
+ * Aic7xxx register and scratch ram definitions.
+ *
+ * Copyright (c) 1994-1998 Justin Gibbs.
+ * 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, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Where this Software is combined with software released under the terms of
+ * the GNU General Public License ("GPL") and the terms of the GPL would require the
+ * combined work to also be released under the terms of the GPL, the terms
+ * and conditions of this License will apply in addition to those of the
+ * GPL with the exception of any terms or conditions of this License that
+ * conflict with, or are expressly prohibited by, the GPL.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
+ *
+ * $Id: aic7xxx.reg,v 1.4 1997/06/27 19:38:39 gibbs Exp $
+ */
+
+/*
+ * 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
+ bit TEMODE 0x80
+ bit ENSELO 0x40
+ bit ENSELI 0x20
+ bit ENRSELI 0x10
+ bit ENAUTOATNO 0x08
+ bit ENAUTOATNI 0x04
+ bit ENAUTOATNP 0x02
+ bit SCSIRSTO 0x01
+}
+
+/*
+ * SCSI Transfer Control 0 Register (pp. 3-13).
+ * Controls the SCSI module data path.
+ */
+register SXFRCTL0 {
+ address 0x001
+ access_mode RW
+ bit DFON 0x80
+ bit DFPEXP 0x40
+ bit FAST20 0x20
+ bit CLRSTCNT 0x10
+ bit SPIOEN 0x08
+ bit SCAMEN 0x04
+ bit CLRCHN 0x02
+}
+
+/*
+ * SCSI Transfer Control 1 Register (pp. 3-14,15).
+ * Controls the SCSI module data path.
+ */
+register SXFRCTL1 {
+ address 0x002
+ access_mode RW
+ bit BITBUCKET 0x80
+ bit SWRAPEN 0x40
+ bit ENSPCHK 0x20
+ mask STIMESEL 0x18
+ bit ENSTIMER 0x04
+ bit ACTNEGEN 0x02
+ bit 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
+ bit CDI 0x80
+ bit IOI 0x40
+ bit MSGI 0x20
+ bit ATNI 0x10
+ bit SELI 0x08
+ bit BSYI 0x04
+ bit REQI 0x02
+ bit ACKI 0x01
+/*
+ * Possible phases in SCSISIGI
+ */
+ 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 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
+ bit CDO 0x80
+ bit IOO 0x40
+ bit MSGO 0x20
+ bit ATNO 0x10
+ bit SELO 0x08
+ bit BSYO 0x04
+ bit REQO 0x02
+ bit 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
+ bit WIDEXFER 0x80 /* Wide transfer control */
+ mask SXFR 0x70 /* Sync transfer rate */
+ mask SXFR_ULTRA2 0x7f /* 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 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
+}
+
+/*
+ * Option Mode Register (Alternate Mode) (p. 5-198)
+ * This register is used to set certain options on Ultra3 based chips.
+ * The chip must be in alternate mode (bit ALT_MODE in SFUNCT must be set)
+ */
+register OPTIONMODE {
+ address 0x008
+ access_mode RW
+ bit AUTORATEEN 0x80
+ bit AUTOACKEN 0x40
+ bit ATNMGMNTEN 0x20
+ bit BUSFREEREV 0x10
+ bit EXPPHASEDIS 0x08
+ bit SCSIDATL_IMGEN 0x04
+ bit AUTO_MSGOUT_DE 0x02
+ bit DIS_MSGIN_DUALEDGE 0x01
+}
+
+
+/*
+ * 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
+ bit CLRSELDO 0x40
+ bit CLRSELDI 0x20
+ bit CLRSELINGO 0x10
+ bit CLRSWRAP 0x08
+ bit 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
+ bit TARGET 0x80 /* Board acting as target */
+ bit SELDO 0x40 /* Selection Done */
+ bit SELDI 0x20 /* Board has been selected */
+ bit SELINGO 0x10 /* Selection In Progress */
+ bit SWRAP 0x08 /* 24bit counter wrap */
+ bit IOERR 0x08 /* LVD Tranceiver mode changed */
+ bit SDONE 0x04 /* STCNT = 0x000000 */
+ bit SPIORDY 0x02 /* SCSI PIO Ready */
+ bit 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
+ bit CLRSELTIMEO 0x80
+ bit CLRATNO 0x40
+ bit CLRSCSIRSTI 0x20
+ bit CLRBUSFREE 0x08
+ bit CLRSCSIPERR 0x04
+ bit CLRPHASECHG 0x02
+ bit CLRREQINIT 0x01
+}
+
+/*
+ * SCSI Status 1 (p. 3-24)
+ */
+register SSTAT1 {
+ address 0x00c
+ access_mode RO
+ bit SELTO 0x80
+ bit ATNTARG 0x40
+ bit SCSIRSTI 0x20
+ bit PHASEMIS 0x10
+ bit BUSFREE 0x08
+ bit SCSIPERR 0x04
+ bit PHASECHG 0x02
+ bit REQINIT 0x01
+}
+
+/*
+ * SCSI Status 2 (pp. 3-25,26)
+ */
+register SSTAT2 {
+ address 0x00d
+ access_mode RO
+ bit OVERRUN 0x80
+ bit SHVALID 0x40
+ bit WIDE_RES 0x20
+ bit EXP_ACTIVE 0x10 /* SCSI Expander Active */
+ bit CRCVALERR 0x08 /* CRC Value Error */
+ bit CRCENDERR 0x04 /* CRC End Error */
+ bit CRCREQERR 0x02 /* CRC REQ Error */
+ bit DUAL_EDGE_ERROR 0x01 /* Invalid pins for Dual Edge phase */
+ mask SFCNT 0x1f
+}
+
+/*
+ * SCSI Status 3 (p. 3-26)
+ */
+register SSTAT3 {
+ address 0x00e
+ access_mode RO
+ mask SCSICNT 0xf0
+ mask OFFCNT 0x0f
+}
+
+/*
+ * 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
+ bit ENSELDO 0x40
+ bit ENSELDI 0x20
+ bit ENSELINGO 0x10
+ bit ENSWRAP 0x08
+ bit ENIOERR 0x08 /* LVD Tranceiver mode changes */
+ bit ENSDONE 0x04
+ bit ENSPIORDY 0x02
+ bit 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
+ bit ENSELTIMO 0x80
+ bit ENATNTARG 0x40
+ bit ENSCSIRST 0x20
+ bit ENPHASEMIS 0x10
+ bit ENBUSFREE 0x08
+ bit ENSCSIPERR 0x04
+ bit ENPHASECHG 0x02
+ bit 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 RO
+}
+
+register SCSIBUSH {
+ address 0x013
+ access_mode RO
+}
+
+/*
+ * 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
+ bit STAGE6 0x20
+ bit STAGE5 0x10
+ bit STAGE4 0x08
+ bit STAGE3 0x04
+ bit STAGE2 0x02
+ bit STAGE1 0x01
+}
+
+/*
+ * 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
+ bit ONEBIT 0x08
+}
+
+/*
+ * 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
+ bit SOFT1 0x80
+ bit SOFT0 0x40
+ bit SOFTCMDEN 0x20
+ bit HAS_BRDCTL 0x10 /* External Board control */
+ bit SEEPROM 0x08 /* External serial eeprom logic */
+ bit EEPROM 0x04 /* Writable external BIOS ROM */
+ bit ROM 0x02 /* Logic for accessing external ROM */
+ bit SSPIOCPS 0x01 /* Termination and cable detection */
+}
+
+/*
+ * SCSI Block Control (p. 3-32)
+ * Controls Bus type and channel selection. In a twin channel configuration
+ * addresses 0x00-0x1e are gated to the appropriate channel based on this
+ * register. SELWIDE allows for the coexistence of 8bit and 16bit devices
+ * on a wide bus.
+ */
+register SBLKCTL {
+ address 0x01f
+ access_mode RW
+ bit DIAGLEDEN 0x80 /* Aic78X0 only */
+ bit DIAGLEDON 0x40 /* Aic78X0 only */
+ bit AUTOFLUSHDIS 0x20
+ bit SELBUSB 0x08
+ bit ENAB40 0x08 /* LVD transceiver active */
+ bit ENAB20 0x04 /* SE/HVD transceiver active */
+ bit SELWIDE 0x02
+ bit XCVR 0x01 /* External transceiver active */
+}
+
+/*
+ * Sequencer Control (p. 3-33)
+ * Error detection mode and speed configuration
+ */
+register SEQCTL {
+ address 0x060
+ access_mode RW
+ bit PERRORDIS 0x80
+ bit PAUSEDIS 0x40
+ bit FAILDIS 0x20
+ bit FASTMODE 0x10
+ bit BRKADRINTEN 0x08
+ bit STEP 0x04
+ bit SEQRESET 0x02
+ bit LOADRAM 0x01
+}
+
+/*
+ * Sequencer RAM Data (p. 3-34)
+ * Single byte window into the Scratch Ram area starting at the address
+ * specified by SEQADDR0 and SEQADDR1. To write a full word, simply write
+ * four bytes in succession. The SEQADDRs will increment after the most
+ * significant byte is written
+ */
+register SEQRAM {
+ address 0x061
+ access_mode RW
+}
+
+/*
+ * Sequencer Address Registers (p. 3-35)
+ * Only the first bit of SEQADDR1 holds addressing information
+ */
+register SEQADDR0 {
+ address 0x062
+ access_mode RW
+}
+
+register SEQADDR1 {
+ address 0x063
+ access_mode RW
+ mask SEQADDR1_MASK 0x01
+}
+
+/*
+ * Accumulator
+ * We cheat by passing arguments in the Accumulator up to the kernel driver
+ */
+register ACCUM {
+ address 0x064
+ access_mode RW
+ accumulator
+}
+
+register SINDEX {
+ address 0x065
+ access_mode RW
+ sindex
+}
+
+register DINDEX {
+ address 0x066
+ access_mode RW
+}
+
+register ALLONES {
+ address 0x069
+ access_mode RO
+ allones
+}
+
+register ALLZEROS {
+ address 0x06a
+ access_mode RO
+ allzeros
+}
+
+register NONE {
+ address 0x06a
+ access_mode WO
+ none
+}
+
+register FLAGS {
+ address 0x06b
+ access_mode RO
+ bit ZERO 0x02
+ bit CARRY 0x01
+}
+
+register SINDIR {
+ address 0x06c
+ access_mode RO
+}
+
+register DINDIR {
+ address 0x06d
+ access_mode WO
+}
+
+register FUNCTION1 {
+ address 0x06e
+ access_mode RW
+}
+
+register STACK {
+ address 0x06f
+ access_mode RO
+}
+
+/*
+ * Board Control (p. 3-43)
+ */
+register BCTL {
+ address 0x084
+ access_mode RW
+ bit ACE 0x08
+ bit ENABLE 0x01
+}
+
+register DSCOMMAND0 {
+ address 0x084
+ access_mode RW
+ bit CACHETHEN 0x80
+ bit DPARCKEN 0x40
+ bit MPARCKEN 0x20
+ bit EXTREQLCK 0x10
+ bit INTSCBRAMSEL 0x08
+ bit RAMPS 0x04
+ bit USCBSIZE32 0x02
+ bit CIOPARCKEN 0x01
+}
+
+/*
+ * On the aic78X0 chips, Board Control is replaced by the DSCommand
+ * register (p. 4-64)
+ */
+register DSCOMMAND {
+ address 0x084
+ access_mode RW
+ bit CACHETHEN 0x80 /* Cache Threshold enable */
+ bit DPARCKEN 0x40 /* Data Parity Check Enable */
+ bit MPARCKEN 0x20 /* Memory Parity Check Enable */
+ bit EXTREQLCK 0x10 /* External Request Lock */
+}
+
+/*
+ * Bus On/Off Time (p. 3-44)
+ */
+register BUSTIME {
+ address 0x085
+ access_mode RW
+ mask BOFF 0xf0
+ mask BON 0x0f
+}
+
+/*
+ * Bus Speed (p. 3-45)
+ */
+register BUSSPD {
+ address 0x086
+ access_mode RW
+ mask DFTHRSH 0xc0
+ mask STBOFF 0x38
+ mask STBON 0x07
+ mask DFTHRSH_100 0xc0
+}
+
+/*
+ * Host Control (p. 3-47) R/W
+ * Overall host control of the device.
+ */
+register HCNTRL {
+ address 0x087
+ access_mode RW
+ bit POWRDN 0x40
+ bit SWINT 0x10
+ bit IRQMS 0x08
+ bit PAUSE 0x04
+ bit INTEN 0x02
+ bit CHIPRST 0x01
+ bit CHIPRSTACK 0x01
+}
+
+/*
+ * Host Address (p. 3-48)
+ * This register contains the address of the byte about
+ * to be transferred across the host bus.
+ */
+register HADDR {
+ address 0x088
+ size 4
+ access_mode RW
+}
+
+register HCNT {
+ address 0x08c
+ size 3
+ access_mode RW
+}
+
+/*
+ * SCB Pointer (p. 3-49)
+ * Gate one of the four SCBs into the SCBARRAY window.
+ */
+register SCBPTR {
+ address 0x090
+ access_mode RW
+}
+
+/*
+ * Interrupt Status (p. 3-50)
+ * Status for system interrupts
+ */
+register INTSTAT {
+ address 0x091
+ access_mode RW
+ bit BRKADRINT 0x08
+ bit SCSIINT 0x04
+ bit CMDCMPLT 0x02
+ bit SEQINT 0x01
+ mask BAD_PHASE SEQINT /* unknown scsi bus phase */
+ mask SEND_REJECT 0x10|SEQINT /* sending a message reject */
+ mask NO_IDENT 0x20|SEQINT /* no IDENTIFY after reconnect*/
+ mask NO_MATCH 0x30|SEQINT /* no cmd match for reconnect */
+ mask EXTENDED_MSG 0x40|SEQINT /* Extended message received */
+ mask WIDE_RESIDUE 0x50|SEQINT /* need kernel to back up */
+ /* the SG array for us */
+ mask REJECT_MSG 0x60|SEQINT /* Reject message received */
+ mask BAD_STATUS 0x70|SEQINT /* Bad status from target */
+ mask RESIDUAL 0x80|SEQINT /* Residual byte count != 0 */
+ mask AWAITING_MSG 0xa0|SEQINT /*
+ * Kernel requested to specify
+ * a message to this target
+ * (command was null), so tell
+ * it that it can fill the
+ * message buffer.
+ */
+ mask SEQ_SG_FIXUP 0xb0|SEQINT /* need help with fixing up
+ * the sg array pointer after
+ * a phasemis with no valid
+ * sg elements in the shadow
+ * pipeline.
+ */
+ mask TRACEPOINT2 0xc0|SEQINT
+ mask MSGIN_PHASEMIS 0xd0|SEQINT /*
+ * Target changed phase on us
+ * when we were expecting
+ * another msgin byte.
+ */
+ mask DATA_OVERRUN 0xe0|SEQINT /*
+ * Target attempted to write
+ * beyond the bounds of its
+ * command.
+ */
+
+ mask SEQINT_MASK 0xf0|SEQINT /* SEQINT Status Codes */
+ mask INT_PEND (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT)
+}
+
+/*
+ * Hard Error (p. 3-53)
+ * Reporting of catastrophic errors. You usually cannot recover from
+ * these without a full board reset.
+ */
+register ERROR {
+ address 0x092
+ access_mode RO
+ bit CIOPARERR 0x80 /* Ultra2 only */
+ bit PCIERRSTAT 0x40 /* PCI only */
+ bit MPARERR 0x20 /* PCI only */
+ bit DPARERR 0x10 /* PCI only */
+ bit SQPARERR 0x08
+ bit ILLOPCODE 0x04
+ bit ILLSADDR 0x02
+ bit DSCTMOUT 0x02 /* Ultra3 only */
+ bit ILLHADDR 0x01
+}
+
+/*
+ * Clear Interrupt Status (p. 3-52)
+ */
+register CLRINT {
+ address 0x092
+ access_mode WO
+ bit CLRPARERR 0x10 /* PCI only */
+ bit CLRBRKADRINT 0x08
+ bit CLRSCSIINT 0x04
+ bit CLRCMDINT 0x02
+ bit CLRSEQINT 0x01
+}
+
+register DFCNTRL {
+ address 0x093
+ access_mode RW
+ bit PRELOADEN 0x80 /* aic7890 only */
+ bit WIDEODD 0x40
+ bit SCSIEN 0x20
+ bit SDMAEN 0x10
+ bit SDMAENACK 0x10
+ bit HDMAEN 0x08
+ bit HDMAENACK 0x08
+ bit DIRECTION 0x04
+ bit FIFOFLUSH 0x02
+ bit FIFORESET 0x01
+}
+
+register DFSTATUS {
+ address 0x094
+ access_mode RO
+ bit PRELOAD_AVAIL 0x80
+ bit DWORDEMP 0x20
+ bit MREQPEND 0x10
+ bit HDONE 0x08
+ bit DFTHRESH 0x04
+ bit FIFOFULL 0x02
+ bit FIFOEMP 0x01
+}
+
+register DFDAT {
+ address 0x099
+ access_mode RW
+}
+
+/*
+ * SCB Auto Increment (p. 3-59)
+ * Byte offset into the SCB Array and an optional bit to allow auto
+ * incrementing of the address during download and upload operations
+ */
+register SCBCNT {
+ address 0x09a
+ access_mode RW
+ bit SCBAUTO 0x80
+ mask SCBCNT_MASK 0x1f
+}
+
+/*
+ * Queue In FIFO (p. 3-60)
+ * Input queue for queued SCBs (commands that the seqencer has yet to start)
+ */
+register QINFIFO {
+ address 0x09b
+ access_mode RW
+}
+
+/*
+ * Queue In Count (p. 3-60)
+ * Number of queued SCBs
+ */
+register QINCNT {
+ address 0x09c
+ access_mode RO
+}
+
+/*
+ * SCSIDATL IMAGE Register (p. 5-104)
+ * Write to this register also go to SCSIDATL but this register will preserve
+ * the data for later reading as long as the SCSIDATL_IMGEN bit in the
+ * OPTIONMODE register is set.
+ */
+register SCSIDATL_IMG {
+ address 0x09c
+ access_mode RW
+}
+
+/*
+ * Queue Out FIFO (p. 3-61)
+ * Queue of SCBs that have completed and await the host
+ */
+register QOUTFIFO {
+ address 0x09d
+ access_mode WO
+}
+
+/*
+ * CRC Control 1 Register (p. 5-105)
+ * Control bits for the Ultra 160/m CRC facilities
+ */
+register CRCCONTROL1 {
+ address 0x09d
+ access_mode RW
+ bit CRCONSEEN 0x80 /* CRC ON Single Edge ENable */
+ bit CRCVALCHKEN 0x40 /* CRC Value Check Enable */
+ bit CRCENDCHKEN 0x20 /* CRC End Check Enable */
+ bit CRCREQCHKEN 0x10
+ bit TARGCRCENDEN 0x08 /* Enable End CRC transfer when target */
+ bit TARGCRCCNTEN 0x04 /* Enable CRC transfer when target */
+}
+
+/*
+ * Queue Out Count (p. 3-61)
+ * Number of queued SCBs in the Out FIFO
+ */
+register QOUTCNT {
+ address 0x09e
+ access_mode RO
+}
+
+/*
+ * SCSI Phase Register (p. 5-106)
+ * Current bus phase
+ */
+register SCSIPHASE {
+ address 0x09e
+ access_mode RO
+ bit SP_STATUS 0x20
+ bit SP_COMMAND 0x10
+ bit SP_MSG_IN 0x08
+ bit SP_MSG_OUT 0x04
+ bit SP_DATA_IN 0x02
+ bit SP_DATA_OUT 0x01
+}
+
+/*
+ * Special Function
+ */
+register SFUNCT {
+ address 0x09f
+ access_mode RW
+ bit ALT_MODE 0x80
+}
+
+/*
+ * SCB Definition (p. 5-4)
+ */
+scb {
+ address 0x0a0
+ SCB_CONTROL {
+ size 1
+ bit MK_MESSAGE 0x80
+ bit DISCENB 0x40
+ bit TAG_ENB 0x20
+ bit DISCONNECTED 0x04
+ mask SCB_TAG_TYPE 0x03
+ }
+ SCB_TCL {
+ size 1
+ bit SELBUSB 0x08
+ mask TID 0xf0
+ mask LID 0x07
+ }
+ SCB_TARGET_STATUS {
+ size 1
+ }
+ SCB_SGCOUNT {
+ size 1
+ }
+ SCB_SGPTR {
+ size 4
+ }
+ SCB_RESID_SGCNT {
+ size 1
+ }
+ SCB_RESID_DCNT {
+ size 3
+ }
+ SCB_DATAPTR {
+ size 4
+ }
+ SCB_DATACNT {
+ /*
+ * Really only 3 bytes, but padded to make
+ * the kernel's job easier.
+ */
+ size 4
+ }
+ SCB_CMDPTR {
+ size 4
+ }
+ SCB_CMDLEN {
+ size 1
+ }
+ SCB_TAG {
+ size 1
+ }
+ SCB_NEXT {
+ size 1
+ }
+ SCB_PREV {
+ size 1
+ }
+ SCB_BUSYTARGETS {
+ size 4
+ }
+}
+
+const SG_SIZEOF 0x08 /* sizeof(struct ahc_dma) */
+
+/* --------------------- AHA-2840-only definitions -------------------- */
+
+register SEECTL_2840 {
+ address 0x0c0
+ access_mode RW
+ bit CS_2840 0x04
+ bit CK_2840 0x02
+ bit DO_2840 0x01
+}
+
+register STATUS_2840 {
+ address 0x0c1
+ access_mode RW
+ bit EEPROM_TF 0x80
+ mask BIOS_SEL 0x60
+ mask ADSEL 0x1e
+ bit DI_2840 0x01
+}
+
+/* --------------------- AIC-7870-only definitions -------------------- */
+
+register DSPCISTATUS {
+ address 0x086
+ mask DFTHRSH_100 0xc0
+}
+
+register CCHADDR {
+ address 0x0E0
+ size 8
+}
+
+register CCHCNT {
+ address 0x0E8
+}
+
+register CCSGRAM {
+ address 0x0E9
+}
+
+register CCSGADDR {
+ address 0x0EA
+}
+
+register CCSGCTL {
+ address 0x0EB
+ bit CCSGDONE 0x80
+ bit CCSGEN 0x08
+ bit FLAG 0x02
+ bit CCSGRESET 0x01
+}
+
+register CCSCBCNT {
+ address 0xEF
+}
+
+register CCSCBCTL {
+ address 0x0EE
+ bit CCSCBDONE 0x80
+ bit ARRDONE 0x40 /* SCB Array prefetch done */
+ bit CCARREN 0x10
+ bit CCSCBEN 0x08
+ bit CCSCBDIR 0x04
+ bit CCSCBRESET 0x01
+}
+
+register CCSCBADDR {
+ address 0x0ED
+}
+
+register CCSCBRAM {
+ address 0xEC
+}
+
+register CCSCBPTR {
+ address 0x0F1
+}
+
+register HNSCB_QOFF {
+ address 0x0F4
+}
+
+register HESCB_QOFF {
+ address 0x0F5
+}
+
+register SNSCB_QOFF {
+ address 0x0F6
+}
+
+register SESCB_QOFF {
+ address 0x0F7
+}
+
+register SDSCB_QOFF {
+ address 0x0F8
+}
+
+register QOFF_CTLSTA {
+ address 0x0FA
+ bit ESTABLISH_SCB_AVAIL 0x80
+ bit SCB_AVAIL 0x40
+ bit SNSCB_ROLLOVER 0x20
+ bit SDSCB_ROLLOVER 0x10
+ bit SESCB_ROLLOVER 0x08
+ mask SCB_QSIZE 0x07
+ mask SCB_QSIZE_256 0x06
+}
+
+register DFF_THRSH {
+ address 0x0FB
+ mask WR_DFTHRSH 0x70
+ mask RD_DFTHRSH 0x07
+ mask RD_DFTHRSH_MIN 0x00
+ mask RD_DFTHRSH_25 0x01
+ mask RD_DFTHRSH_50 0x02
+ mask RD_DFTHRSH_63 0x03
+ mask RD_DFTHRSH_75 0x04
+ mask RD_DFTHRSH_85 0x05
+ mask RD_DFTHRSH_90 0x06
+ mask RD_DFTHRSH_MAX 0x07
+ mask WR_DFTHRSH_MIN 0x00
+ mask WR_DFTHRSH_25 0x10
+ mask WR_DFTHRSH_50 0x20
+ mask WR_DFTHRSH_63 0x30
+ mask WR_DFTHRSH_75 0x40
+ mask WR_DFTHRSH_85 0x50
+ mask WR_DFTHRSH_90 0x60
+ mask WR_DFTHRSH_MAX 0x70
+}
+
+register SG_CACHEPTR {
+ access_mode RW
+ address 0x0fc
+ mask SG_USER_DATA 0xfc
+ bit LAST_SEG 0x02
+ bit LAST_SEG_DONE 0x01
+}
+
+register BRDCTL {
+ address 0x01d
+ bit BRDDAT7 0x80
+ bit BRDDAT6 0x40
+ bit BRDDAT5 0x20
+ bit BRDSTB 0x10
+ bit BRDCS 0x08
+ bit BRDRW 0x04
+ bit BRDCTL1 0x02
+ bit BRDCTL0 0x01
+ /* 7890 Definitions */
+ bit BRDDAT4 0x10
+ bit BRDDAT3 0x08
+ bit BRDDAT2 0x04
+ bit BRDRW_ULTRA2 0x02
+ bit BRDSTB_ULTRA2 0x01
+}
+
+/*
+ * Serial EEPROM Control (p. 4-92 in 7870 Databook)
+ * Controls the reading and writing of an external serial 1-bit
+ * EEPROM Device. In order to access the serial EEPROM, you must
+ * first set the SEEMS bit that generates a request to the memory
+ * port for access to the serial EEPROM device. When the memory
+ * port is not busy servicing another request, it reconfigures
+ * to allow access to the serial EEPROM. When this happens, SEERDY
+ * gets set high to verify that the memory port access has been
+ * granted.
+ *
+ * After successful arbitration for the memory port, the SEECS bit of
+ * the SEECTL register is connected to the chip select. The SEECK,
+ * SEEDO, and SEEDI are connected to the clock, data out, and data in
+ * lines respectively. The SEERDY bit of SEECTL is useful in that it
+ * gives us an 800 nsec timer. After a write to the SEECTL register,
+ * the SEERDY goes high 800 nsec later. The one exception to this is
+ * when we first request access to the memory port. The SEERDY goes
+ * high to signify that access has been granted and, for this case, has
+ * no implied timing.
+ *
+ * See 93cx6.c for detailed information on the protocol necessary to
+ * read the serial EEPROM.
+ */
+register SEECTL {
+ address 0x01e
+ bit EXTARBACK 0x80
+ bit EXTARBREQ 0x40
+ bit SEEMS 0x20
+ bit SEERDY 0x10
+ bit SEECS 0x08
+ bit SEECK 0x04
+ bit SEEDO 0x02
+ bit SEEDI 0x01
+}
+/* ---------------------- Scratch RAM Offsets ------------------------- */
+/* These offsets are either to values that are initialized by the board's
+ * BIOS or are specified by the sequencer code.
+ *
+ * The host adapter card (at least the BIOS) uses 20-2f for SCSI
+ * device information, 32-33 and 5a-5f as well. As it turns out, the
+ * BIOS trashes 20-2f, writing the synchronous negotiation results
+ * on top of the BIOS values, so we re-use those for our per-target
+ * scratchspace (actually a value that can be copied directly into
+ * SCSIRATE). The kernel driver will enable synchronous negotiation
+ * for all targets that have a value other than 0 in the lower four
+ * bits of the target scratch space. This should work regardless of
+ * whether the bios has been installed.
+ */
+
+scratch_ram {
+ address 0x020
+
+ /*
+ * 1 byte per target starting at this address for configuration values
+ */
+ TARG_SCSIRATE {
+ size 16
+ }
+ /*
+ * Bit vector of targets that have ULTRA enabled.
+ */
+ ULTRA_ENB {
+ size 2
+ }
+ /*
+ * Bit vector of targets that have disconnection disabled.
+ */
+ DISC_DSB {
+ size 2
+ }
+ /*
+ * Single byte buffer used to designate the type or message
+ * to send to a target.
+ */
+ MSG_OUT {
+ size 1
+ }
+ /* Parameters for DMA Logic */
+ DMAPARAMS {
+ size 1
+ bit PRELOADEN 0x80
+ bit WIDEODD 0x40
+ bit SCSIEN 0x20
+ bit SDMAEN 0x10
+ bit SDMAENACK 0x10
+ bit HDMAEN 0x08
+ bit HDMAENACK 0x08
+ bit DIRECTION 0x04
+ bit FIFOFLUSH 0x02
+ bit FIFORESET 0x01
+ }
+ SEQ_FLAGS {
+ size 1
+ bit IDENTIFY_SEEN 0x80
+ bit SCBPTR_VALID 0x20
+ bit DPHASE 0x10
+ bit AMTARGET 0x08
+ bit WIDE_BUS 0x02
+ bit TWIN_BUS 0x01
+ }
+ /*
+ * Temporary storage for the
+ * target/channel/lun of a
+ * reconnecting target
+ */
+ SAVED_TCL {
+ size 1
+ }
+ /* Working value of the number of SG segments left */
+ SG_COUNT {
+ size 1
+ }
+ /* Working value of SG pointer */
+ SG_NEXT {
+ size 4
+ }
+ /*
+ * The last bus phase as seen by the sequencer.
+ */
+ LASTPHASE {
+ size 1
+ bit CDI 0x80
+ bit IOI 0x40
+ bit MSGI 0x20
+ mask PHASE_MASK CDI|IOI|MSGI
+ mask P_DATAOUT 0x00
+ mask P_DATAIN IOI
+ mask P_COMMAND CDI
+ mask P_MESGOUT CDI|MSGI
+ mask P_STATUS CDI|IOI
+ mask P_MESGIN CDI|IOI|MSGI
+ mask P_BUSFREE 0x01
+ }
+ /*
+ * head of list of SCBs awaiting
+ * selection
+ */
+ WAITING_SCBH {
+ size 1
+ }
+ /*
+ * head of list of SCBs that are
+ * disconnected. Used for SCB
+ * paging.
+ */
+ DISCONNECTED_SCBH {
+ size 1
+ }
+ /*
+ * head of list of SCBs that are
+ * not in use. Used for SCB paging.
+ */
+ FREE_SCBH {
+ size 1
+ }
+ /*
+ * Address of the hardware scb array in the host.
+ */
+ HSCB_ADDR {
+ size 4
+ }
+ /*
+ * Address of the 256 byte array storing the SCBID of outstanding
+ * untagged SCBs indexed by TCL.
+ */
+ SCBID_ADDR {
+ size 4
+ }
+ /*
+ * Address of the array of command descriptors used to store
+ * information about incoming selections.
+ */
+ TMODE_CMDADDR {
+ size 4
+ }
+ KERNEL_QINPOS {
+ size 1
+ }
+ QINPOS {
+ size 1
+ }
+ QOUTPOS {
+ size 1
+ }
+ /*
+ * Offset into the command descriptor array for the next
+ * available desciptor to use.
+ */
+ TMODE_CMDADDR_NEXT {
+ size 1
+ }
+ ARG_1 {
+ size 1
+ mask SEND_MSG 0x80
+ mask SEND_SENSE 0x40
+ mask SEND_REJ 0x20
+ mask MSGOUT_PHASEMIS 0x10
+ alias RETURN_1
+ }
+ ARG_2 {
+ size 1
+ alias RETURN_2
+ }
+
+ /*
+ * Snapshot of MSG_OUT taken after each message is sent.
+ */
+ LAST_MSG {
+ size 1
+ }
+
+ /*
+ * Number of times we have filled the CCSGRAM with prefetched
+ * SG elements.
+ */
+ PREFETCH_CNT {
+ size 1
+ }
+
+
+ /*
+ * These are reserved registers in the card's scratch ram. Some of
+ * the values are specified in the AHA2742 technical reference manual
+ * and are initialized by the BIOS at boot time.
+ */
+ SCSICONF {
+ address 0x05a
+ size 1
+ bit TERM_ENB 0x80
+ bit RESET_SCSI 0x40
+ mask HSCSIID 0x07 /* our SCSI ID */
+ mask HWSCSIID 0x0f /* our SCSI ID if Wide Bus */
+ }
+ HOSTCONF {
+ address 0x05d
+ size 1
+ }
+ HA_274_BIOSCTRL {
+ address 0x05f
+ size 1
+ mask BIOSMODE 0x30
+ mask BIOSDISABLED 0x30
+ bit CHANNEL_B_PRIMARY 0x08
+ }
+ /*
+ * Per target SCSI offset values for Ultra2 controllers.
+ */
+ TARG_OFFSET {
+ address 0x070
+ size 16
+ }
+}
+
+const SCB_LIST_NULL 0xff
+
+const CCSGADDR_MAX 0x80
+const CCSGRAM_MAXSEGS 16
+
+/* Offsets into the SCBID array where different data is stored */
+const UNTAGGEDSCB_OFFSET 0
+const QOUTFIFO_OFFSET 1
+const QINFIFO_OFFSET 2
+
+/* WDTR Message values */
+const BUS_8_BIT 0x00
+const BUS_16_BIT 0x01
+const BUS_32_BIT 0x02
+
+/* Offset maximums */
+const MAX_OFFSET_8BIT 0x0f
+const MAX_OFFSET_16BIT 0x08
+const MAX_OFFSET_ULTRA2 0x7f
+const HOST_MSG 0xff
+
+/* Target mode command processing constants */
+const CMD_GROUP_CODE_SHIFT 0x05
+const CMD_GROUP0_BYTE_DELTA -4
+const CMD_GROUP2_BYTE_DELTA -6
+const CMD_GROUP4_BYTE_DELTA 4
+const CMD_GROUP5_BYTE_DELTA 11
+
+/*
+ * Downloaded (kernel inserted) constants
+ */
+
+/*
+ * Number of command descriptors in the command descriptor array.
+ */
+const TMODE_NUMCMDS download
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx.seq b/drivers/scsi/aic7xxx_old/aic7xxx.seq
new file mode 100644
index 000000000000..f6fc4b75b5a5
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/aic7xxx.seq
@@ -0,0 +1,1539 @@
+/*
+ * Adaptec 274x/284x/294x device driver firmware for Linux and FreeBSD.
+ *
+ * Copyright (c) 1994-1999 Justin Gibbs.
+ * 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, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Where this Software is combined with software released under the terms of
+ * the GNU General Public License (GPL) and the terms of the GPL would require the
+ * combined work to also be released under the terms of the GPL, the terms
+ * and conditions of this License will apply in addition to those of the
+ * GPL with the exception of any terms or conditions of this License that
+ * conflict with, or are expressly prohibited by, the GPL.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
+ *
+ * $Id: aic7xxx.seq,v 1.77 1998/06/28 02:58:57 gibbs Exp $
+ */
+
+#include "aic7xxx.reg"
+#include "scsi_message.h"
+
+/*
+ * A few words on the waiting SCB list:
+ * After starting the selection hardware, we check for reconnecting targets
+ * as well as for our selection to complete just in case the reselection wins
+ * bus arbitration. The problem with this is that we must keep track of the
+ * SCB that we've already pulled from the QINFIFO and started the selection
+ * on just in case the reselection wins so that we can retry the selection at
+ * a later time. This problem cannot be resolved by holding a single entry
+ * in scratch ram since a reconnecting target can request sense and this will
+ * create yet another SCB waiting for selection. The solution used here is to
+ * use byte 27 of the SCB as a pseudo-next pointer and to thread a list
+ * of SCBs that are awaiting selection. Since 0-0xfe are valid SCB indexes,
+ * SCB_LIST_NULL is 0xff which is out of range. An entry is also added to
+ * this list everytime a request sense occurs or after completing a non-tagged
+ * command for which a second SCB has been queued. The sequencer will
+ * automatically consume the entries.
+ */
+
+reset:
+ clr SCSISIGO; /* De-assert BSY */
+ and SXFRCTL1, ~BITBUCKET;
+ /* Always allow reselection */
+ mvi SCSISEQ, ENRSELI|ENAUTOATNP;
+
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ /* Ensure that no DMA operations are in progress */
+ clr CCSGCTL;
+ clr CCSCBCTL;
+ }
+
+ call clear_target_state;
+poll_for_work:
+ and SXFRCTL0, ~SPIOEN;
+ if ((p->features & AHC_QUEUE_REGS) == 0) {
+ mov A, QINPOS;
+ }
+poll_for_work_loop:
+ if ((p->features & AHC_QUEUE_REGS) == 0) {
+ and SEQCTL, ~PAUSEDIS;
+ }
+ test SSTAT0, SELDO|SELDI jnz selection;
+ test SCSISEQ, ENSELO jnz poll_for_work;
+ if ((p->features & AHC_TWIN) != 0) {
+ /*
+ * Twin channel devices cannot handle things like SELTO
+ * interrupts on the "background" channel. So, if we
+ * are selecting, keep polling the current channel util
+ * either a selection or reselection occurs.
+ */
+ xor SBLKCTL,SELBUSB; /* Toggle to the other bus */
+ test SSTAT0, SELDO|SELDI jnz selection;
+ test SCSISEQ, ENSELO jnz poll_for_work;
+ xor SBLKCTL,SELBUSB; /* Toggle back */
+ }
+ cmp WAITING_SCBH,SCB_LIST_NULL jne start_waiting;
+test_queue:
+ /* Has the driver posted any work for us? */
+ if ((p->features & AHC_QUEUE_REGS) != 0) {
+ test QOFF_CTLSTA, SCB_AVAIL jz poll_for_work_loop;
+ mov NONE, SNSCB_QOFF;
+ inc QINPOS;
+ } else {
+ or SEQCTL, PAUSEDIS;
+ cmp KERNEL_QINPOS, A je poll_for_work_loop;
+ inc QINPOS;
+ and SEQCTL, ~PAUSEDIS;
+ }
+
+/*
+ * We have at least one queued SCB now and we don't have any
+ * SCBs in the list of SCBs awaiting selection. If we have
+ * any SCBs available for use, pull the tag from the QINFIFO
+ * and get to work on it.
+ */
+ if ((p->flags & AHC_PAGESCBS) != 0) {
+ mov ALLZEROS call get_free_or_disc_scb;
+ }
+
+dequeue_scb:
+ add A, -1, QINPOS;
+ mvi QINFIFO_OFFSET call fetch_byte;
+
+ if ((p->flags & AHC_PAGESCBS) == 0) {
+ /* In the non-paging case, the SCBID == hardware SCB index */
+ mov SCBPTR, RETURN_2;
+ }
+dma_queued_scb:
+/*
+ * DMA the SCB from host ram into the current SCB location.
+ */
+ mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET;
+ mov RETURN_2 call dma_scb;
+
+/*
+ * Preset the residual fields in case we never go through a data phase.
+ * This isn't done by the host so we can avoid a DMA to clear these
+ * fields for the normal case of I/O that completes without underrun
+ * or overrun conditions.
+ */
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ bmov SCB_RESID_DCNT, SCB_DATACNT, 3;
+ } else {
+ mov SCB_RESID_DCNT[0],SCB_DATACNT[0];
+ mov SCB_RESID_DCNT[1],SCB_DATACNT[1];
+ mov SCB_RESID_DCNT[2],SCB_DATACNT[2];
+ }
+ mov SCB_RESID_SGCNT, SCB_SGCOUNT;
+
+start_scb:
+ /*
+ * Place us on the waiting list in case our selection
+ * doesn't win during bus arbitration.
+ */
+ mov SCB_NEXT,WAITING_SCBH;
+ mov WAITING_SCBH, SCBPTR;
+start_waiting:
+ /*
+ * Pull the first entry off of the waiting SCB list.
+ */
+ mov SCBPTR, WAITING_SCBH;
+ call start_selection;
+ jmp poll_for_work;
+
+start_selection:
+ if ((p->features & AHC_TWIN) != 0) {
+ and SINDEX,~SELBUSB,SBLKCTL;/* Clear channel select bit */
+ and A,SELBUSB,SCB_TCL; /* Get new channel bit */
+ or SINDEX,A;
+ mov SBLKCTL,SINDEX; /* select channel */
+ }
+initialize_scsiid:
+ if ((p->features & AHC_ULTRA2) != 0) {
+ and A, TID, SCB_TCL; /* Get target ID */
+ and SCSIID_ULTRA2, OID; /* Clear old target */
+ or SCSIID_ULTRA2, A;
+ } else {
+ and A, TID, SCB_TCL; /* Get target ID */
+ and SCSIID, OID; /* Clear old target */
+ or SCSIID, A;
+ }
+ mov SCSIDATL, ALLZEROS; /* clear out the latched */
+ /* data register, this */
+ /* fixes a bug on some */
+ /* controllers where the */
+ /* last byte written to */
+ /* this register can leak */
+ /* onto the data bus at */
+ /* bad times, such as during */
+ /* selection timeouts */
+ mvi SCSISEQ, ENSELO|ENAUTOATNO|ENRSELI|ENAUTOATNP ret;
+
+/*
+ * Initialize Ultra mode setting and clear the SCSI channel.
+ * SINDEX should contain any additional bit's the client wants
+ * set in SXFRCTL0.
+ */
+initialize_channel:
+ or SXFRCTL0, CLRSTCNT|CLRCHN, SINDEX;
+ if ((p->features & AHC_ULTRA) != 0) {
+ultra:
+ mvi SINDEX, ULTRA_ENB+1;
+ test SAVED_TCL, 0x80 jnz ultra_2; /* Target ID > 7 */
+ dec SINDEX;
+ultra_2:
+ mov FUNCTION1,SAVED_TCL;
+ mov A,FUNCTION1;
+ test SINDIR, A jz ndx_dtr;
+ or SXFRCTL0, FAST20;
+ }
+/*
+ * Initialize SCSIRATE with the appropriate value for this target.
+ * The SCSIRATE settings for each target are stored in an array
+ * based at TARG_SCSIRATE.
+ */
+ndx_dtr:
+ shr A,4,SAVED_TCL;
+ if ((p->features & AHC_TWIN) != 0) {
+ test SBLKCTL,SELBUSB jz ndx_dtr_2;
+ or SAVED_TCL, SELBUSB;
+ or A,0x08; /* Channel B entries add 8 */
+ndx_dtr_2:
+ }
+
+ if ((p->features & AHC_ULTRA2) != 0) {
+ add SINDEX, TARG_OFFSET, A;
+ mov SCSIOFFSET, SINDIR;
+ }
+
+ add SINDEX,TARG_SCSIRATE,A;
+ mov SCSIRATE,SINDIR ret;
+
+
+selection:
+ test SSTAT0,SELDO jnz select_out;
+/*
+ * Reselection has been initiated by a target. Make a note that we've been
+ * reselected, but haven't seen an IDENTIFY message from the target yet.
+ */
+initiator_reselect:
+ mvi CLRSINT0, CLRSELDI;
+ /* XXX test for and handle ONE BIT condition */
+ and SAVED_TCL, SELID_MASK, SELID;
+ mvi CLRSINT1,CLRBUSFREE;
+ or SIMODE1, ENBUSFREE; /*
+ * We aren't expecting a
+ * bus free, so interrupt
+ * the kernel driver if it
+ * happens.
+ */
+ mvi SPIOEN call initialize_channel;
+ mvi MSG_OUT, MSG_NOOP; /* No message to send */
+ jmp ITloop;
+
+/*
+ * After the selection, remove this SCB from the "waiting SCB"
+ * list. This is achieved by simply moving our "next" pointer into
+ * WAITING_SCBH. Our next pointer will be set to null the next time this
+ * SCB is used, so don't bother with it now.
+ */
+select_out:
+ /* Turn off the selection hardware */
+ mvi SCSISEQ, ENRSELI|ENAUTOATNP; /*
+ * ATN on parity errors
+ * for "in" phases
+ */
+ mvi CLRSINT0, CLRSELDO;
+ mov SCBPTR, WAITING_SCBH;
+ mov WAITING_SCBH,SCB_NEXT;
+ mov SAVED_TCL, SCB_TCL;
+ mvi CLRSINT1,CLRBUSFREE;
+ or SIMODE1, ENBUSFREE; /*
+ * We aren't expecting a
+ * bus free, so interrupt
+ * the kernel driver if it
+ * happens.
+ */
+ mvi SPIOEN call initialize_channel;
+/*
+ * As soon as we get a successful selection, the target should go
+ * into the message out phase since we have ATN asserted.
+ */
+ mvi MSG_OUT, MSG_IDENTIFYFLAG;
+ or SEQ_FLAGS, IDENTIFY_SEEN;
+
+/*
+ * Main loop for information transfer phases. Wait for the target
+ * to assert REQ before checking MSG, C/D and I/O for the bus phase.
+ */
+ITloop:
+ call phase_lock;
+
+ mov A, LASTPHASE;
+
+ test A, ~P_DATAIN jz p_data;
+ cmp A,P_COMMAND je p_command;
+ cmp A,P_MESGOUT je p_mesgout;
+ cmp A,P_STATUS je p_status;
+ cmp A,P_MESGIN je p_mesgin;
+
+ mvi INTSTAT,BAD_PHASE; /* unknown phase - signal driver */
+ jmp ITloop; /* Try reading the bus again. */
+
+await_busfree:
+ and SIMODE1, ~ENBUSFREE;
+ call clear_target_state;
+ mov NONE, SCSIDATL; /* Ack the last byte */
+ and SXFRCTL0, ~SPIOEN;
+ test SSTAT1,REQINIT|BUSFREE jz .;
+ test SSTAT1, BUSFREE jnz poll_for_work;
+ mvi INTSTAT, BAD_PHASE;
+
+clear_target_state:
+ /*
+ * We assume that the kernel driver may reset us
+ * at any time, even in the middle of a DMA, so
+ * clear DFCNTRL too.
+ */
+ clr DFCNTRL;
+
+ /*
+ * We don't know the target we will connect to,
+ * so default to narrow transfers to avoid
+ * parity problems.
+ */
+ if ((p->features & AHC_ULTRA2) != 0) {
+ bmov SCSIRATE, ALLZEROS, 2;
+ } else {
+ clr SCSIRATE;
+ and SXFRCTL0, ~(FAST20);
+ }
+ mvi LASTPHASE, P_BUSFREE;
+ /* clear target specific flags */
+ clr SEQ_FLAGS ret;
+
+
+data_phase_reinit:
+/*
+ * If we re-enter the data phase after going through another phase, the
+ * STCNT may have been cleared, so restore it from the residual field.
+ * On Ultra2, we have to put it into the HCNT field because we have to
+ * drop the data down into the shadow layer via the preload ability.
+ */
+ if ((p->features & AHC_ULTRA2) != 0) {
+ bmov HADDR, SHADDR, 4;
+ bmov HCNT, SCB_RESID_DCNT, 3;
+ }
+ if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
+ bmov STCNT, SCB_RESID_DCNT, 3;
+ }
+ if ((p->features & AHC_CMD_CHAN) == 0) {
+ mvi DINDEX, STCNT;
+ mvi SCB_RESID_DCNT call bcopy_3;
+ }
+ jmp data_phase_loop;
+p_data:
+ if ((p->features & AHC_ULTRA2) != 0) {
+ mvi DMAPARAMS, PRELOADEN|SCSIEN|HDMAEN;
+ } else {
+ mvi DMAPARAMS, WIDEODD|SCSIEN|SDMAEN|HDMAEN|FIFORESET;
+ }
+ test LASTPHASE, IOI jnz . + 2;
+ or DMAPARAMS, DIRECTION;
+ call assert; /*
+ * Ensure entering a data
+ * phase is okay - seen identify, etc.
+ */
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ mvi CCSGADDR, CCSGADDR_MAX;
+ }
+
+ test SEQ_FLAGS, DPHASE jnz data_phase_reinit;
+ or SEQ_FLAGS, DPHASE; /* we've seen a data phase */
+ /*
+ * Initialize the DMA address and counter from the SCB.
+ * Also set SG_COUNT and SG_NEXT in memory since we cannot
+ * modify the values in the SCB itself until we see a
+ * save data pointers message.
+ */
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ bmov HADDR, SCB_DATAPTR, 7;
+ bmov SG_COUNT, SCB_SGCOUNT, 5;
+ if ((p->features & AHC_ULTRA2) == 0) {
+ bmov STCNT, HCNT, 3;
+ }
+ } else {
+ mvi DINDEX, HADDR;
+ mvi SCB_DATAPTR call bcopy_7;
+ call set_stcnt_from_hcnt;
+ mvi DINDEX, SG_COUNT;
+ mvi SCB_SGCOUNT call bcopy_5;
+ }
+data_phase_loop:
+ /* Guard against overruns */
+ test SG_COUNT, 0xff jnz data_phase_inbounds;
+/*
+ * Turn on 'Bit Bucket' mode, set the transfer count to
+ * 16meg and let the target run until it changes phase.
+ * When the transfer completes, notify the host that we
+ * had an overrun.
+ */
+ or SXFRCTL1,BITBUCKET;
+ and DMAPARAMS, ~(HDMAEN|SDMAEN);
+ if ((p->features & AHC_ULTRA2) != 0) {
+ bmov HCNT, ALLONES, 3;
+ }
+ if ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895) {
+ bmov STCNT, ALLONES, 3;
+ }
+ if ((p->features & AHC_CMD_CHAN) == 0) {
+ mvi STCNT[0], 0xFF;
+ mvi STCNT[1], 0xFF;
+ mvi STCNT[2], 0xFF;
+ }
+
+data_phase_inbounds:
+/* If we are the last SG block, tell the hardware. */
+ if ((p->features & AHC_ULTRA2) != 0) {
+ shl A, 2, SG_COUNT;
+ cmp SG_COUNT,0x01 jne data_phase_wideodd;
+ or A, LAST_SEG;
+ } else {
+ cmp SG_COUNT,0x01 jne data_phase_wideodd;
+ and DMAPARAMS, ~WIDEODD;
+ }
+data_phase_wideodd:
+ if ((p->features & AHC_ULTRA2) != 0) {
+ mov SG_CACHEPTR, A;
+ mov DFCNTRL, DMAPARAMS; /* start the operation */
+ test SXFRCTL1, BITBUCKET jnz data_phase_overrun;
+u2_preload_wait:
+ test SSTAT1, PHASEMIS jnz u2_phasemis;
+ test DFSTATUS, PRELOAD_AVAIL jz u2_preload_wait;
+ } else {
+ mov DMAPARAMS call dma;
+data_phase_dma_done:
+/* Go tell the host about any overruns */
+ test SXFRCTL1,BITBUCKET jnz data_phase_overrun;
+
+/* Exit if we had an underrun. dma clears SINDEX in this case. */
+ test SINDEX,0xff jz data_phase_finish;
+ }
+/*
+ * Advance the scatter-gather pointers
+ */
+sg_advance:
+ if ((p->features & AHC_ULTRA2) != 0) {
+ cmp SG_COUNT, 0x01 je u2_data_phase_finish;
+ } else {
+ dec SG_COUNT;
+ test SG_COUNT, 0xff jz data_phase_finish;
+ }
+
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+
+ /*
+ * Do we have any prefetch left???
+ */
+ cmp CCSGADDR, CCSGADDR_MAX jne prefetch_avail;
+
+ /*
+ * Fetch MIN(CCSGADDR_MAX, (SG_COUNT * 8)) bytes.
+ */
+ add A, -(CCSGRAM_MAXSEGS + 1), SG_COUNT;
+ mvi A, CCSGADDR_MAX;
+ jc . + 2;
+ shl A, 3, SG_COUNT;
+ mov CCHCNT, A;
+ bmov CCHADDR, SG_NEXT, 4;
+ mvi CCSGCTL, CCSGEN|CCSGRESET;
+ test CCSGCTL, CCSGDONE jz .;
+ and CCSGCTL, ~CCSGEN;
+ test CCSGCTL, CCSGEN jnz .;
+ mvi CCSGCTL, CCSGRESET;
+prefetch_avail:
+ bmov HADDR, CCSGRAM, 8;
+ if ((p->features & AHC_ULTRA2) == 0) {
+ bmov STCNT, HCNT, 3;
+ } else {
+ dec SG_COUNT;
+ }
+ } else {
+ mvi DINDEX, HADDR;
+ mvi SG_NEXT call bcopy_4;
+
+ mvi HCNT[0],SG_SIZEOF;
+ clr HCNT[1];
+ clr HCNT[2];
+
+ or DFCNTRL, HDMAEN|DIRECTION|FIFORESET;
+
+ call dma_finish;
+
+/*
+ * Copy data from FIFO into SCB data pointer and data count.
+ * This assumes that the SG segments are of the form:
+ * struct ahc_dma_seg {
+ * u_int32_t addr; four bytes, little-endian order
+ * u_int32_t len; four bytes, little endian order
+ * };
+ */
+ mvi DINDEX, HADDR;
+ call dfdat_in_7;
+ call set_stcnt_from_hcnt;
+ }
+/* Advance the SG pointer */
+ clr A; /* add sizeof(struct scatter) */
+ add SG_NEXT[0],SG_SIZEOF;
+ adc SG_NEXT[1],A;
+
+ if ((p->features & AHC_ULTRA2) != 0) {
+ jmp data_phase_loop;
+ } else {
+ test SSTAT1, REQINIT jz .;
+ test SSTAT1,PHASEMIS jz data_phase_loop;
+ }
+
+
+/*
+ * We've loaded all of our segments into the preload layer. Now, we simply
+ * have to wait for it to finish or for us to get a phasemis. And, since
+ * we'll get a phasemis if we do finish, all we really need to do is wait
+ * for a phasemis then check if we did actually complete all the segments.
+ */
+ if ((p->features & AHC_ULTRA2) != 0) {
+u2_data_phase_finish:
+ test SSTAT1, PHASEMIS jnz u2_phasemis;
+ test SG_CACHEPTR, LAST_SEG_DONE jz u2_data_phase_finish;
+ clr SG_COUNT;
+ test SSTAT1, REQINIT jz .;
+ test SSTAT1, PHASEMIS jz data_phase_loop;
+u2_phasemis:
+ call ultra2_dmafinish;
+ test SG_CACHEPTR, LAST_SEG_DONE jnz data_phase_finish;
+ test SSTAT2, SHVALID jnz u2_fixup_residual;
+ mvi INTSTAT, SEQ_SG_FIXUP;
+ jmp data_phase_finish;
+u2_fixup_residual:
+ shr ARG_1, 2, SG_CACHEPTR;
+u2_phasemis_loop:
+ and A, 0x3f, SG_COUNT;
+ cmp ARG_1, A je data_phase_finish;
+/*
+ * Subtract SG_SIZEOF from the SG_NEXT pointer and add 1 to the SG_COUNT
+ */
+ clr A;
+ add SG_NEXT[0], -SG_SIZEOF;
+ adc SG_NEXT[1], 0xff;
+ inc SG_COUNT;
+ jmp u2_phasemis_loop;
+ }
+
+data_phase_finish:
+/*
+ * After a DMA finishes, save the SG and STCNT residuals back into the SCB
+ * We use STCNT instead of HCNT, since it's a reflection of how many bytes
+ * were transferred on the SCSI (as opposed to the host) bus.
+ */
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ bmov SCB_RESID_DCNT, STCNT, 3;
+ mov SCB_RESID_SGCNT, SG_COUNT;
+ if ((p->features & AHC_ULTRA2) != 0) {
+ or SXFRCTL0, CLRSTCNT|CLRCHN;
+ }
+ } else {
+ mov SCB_RESID_DCNT[0],STCNT[0];
+ mov SCB_RESID_DCNT[1],STCNT[1];
+ mov SCB_RESID_DCNT[2],STCNT[2];
+ mov SCB_RESID_SGCNT, SG_COUNT;
+ }
+
+ jmp ITloop;
+
+data_phase_overrun:
+/*
+ * Turn off BITBUCKET mode and notify the host
+ */
+ if ((p->features & AHC_ULTRA2) != 0) {
+/*
+ * Wait for the target to quit transferring data on the SCSI bus
+ */
+ test SSTAT1, PHASEMIS jz .;
+ call ultra2_dmafinish;
+ }
+ and SXFRCTL1, ~BITBUCKET;
+ mvi INTSTAT,DATA_OVERRUN;
+ jmp ITloop;
+
+
+
+
+/*
+ * Actually turn off the DMA hardware, save our current position into the
+ * proper residual variables, wait for the next REQ signal, then jump to
+ * the ITloop. Jumping to the ITloop ensures that if we happen to get
+ * brought into the data phase again (or are still in it after our last
+ * segment) that we will properly signal an overrun to the kernel.
+ */
+ if ((p->features & AHC_ULTRA2) != 0) {
+ultra2_dmafinish:
+ test DFCNTRL, DIRECTION jnz ultra2_dmahalt;
+ and DFCNTRL, ~SCSIEN;
+ test DFCNTRL, SCSIEN jnz .;
+ if ((p->bugs & AHC_BUG_AUTOFLUSH) != 0) {
+ or DFCNTRL, FIFOFLUSH;
+ }
+ultra2_dmafifoflush:
+ if ((p->bugs & AHC_BUG_AUTOFLUSH) != 0) {
+ /*
+ * hardware bug alert! This needless set of jumps
+ * works around a glitch in the silicon. When the
+ * PCI DMA fifo goes empty, but there is still SCSI
+ * data to be flushed into the PCI DMA fifo (and from
+ * there on into main memory), the FIFOEMP bit will
+ * come on between the time when the PCI DMA buffer
+ * went empty and the next bit of data is copied from
+ * the SCSI fifo into the PCI fifo. It should only
+ * come on when both FIFOs (meaning the entire FIFO
+ * chain) are emtpy. Since it can take up to 4 cycles
+ * for new data to be copied from the SCSI fifo into
+ * the PCI fifo, testing for FIFOEMP status for 4
+ * extra times gives the needed time for any
+ * remaining SCSI fifo data to be put in the PCI fifo
+ * before we declare it *truly* empty.
+ */
+ test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
+ test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
+ test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
+ test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
+ }
+ test DFSTATUS, FIFOEMP jz ultra2_dmafifoflush;
+ test DFSTATUS, MREQPEND jnz .;
+ultra2_dmahalt:
+ and DFCNTRL, ~(HDMAEN|SCSIEN);
+ test DFCNTRL, (HDMAEN|SCSIEN) jnz .;
+ ret;
+ }
+
+/*
+ * Command phase. Set up the DMA registers and let 'er rip.
+ */
+p_command:
+ call assert;
+
+/*
+ * Load HADDR and HCNT.
+ */
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ bmov HADDR, SCB_CMDPTR, 5;
+ bmov HCNT[1], ALLZEROS, 2;
+ if ((p->features & AHC_ULTRA2) == 0) {
+ bmov STCNT, HCNT, 3;
+ }
+ } else {
+ mvi DINDEX, HADDR;
+ mvi SCB_CMDPTR call bcopy_5;
+ clr HCNT[1];
+ clr HCNT[2];
+ call set_stcnt_from_hcnt;
+ }
+
+ if ((p->features & AHC_ULTRA2) == 0) {
+ mvi (SCSIEN|SDMAEN|HDMAEN|DIRECTION|FIFORESET) call dma;
+ } else {
+ mvi DFCNTRL, (PRELOADEN|SCSIEN|HDMAEN|DIRECTION);
+ test SSTAT0, SDONE jnz .;
+p_command_dma_loop:
+ test SSTAT0, SDONE jnz p_command_ultra2_dma_done;
+ test SSTAT1,PHASEMIS jz p_command_dma_loop; /* ie. underrun */
+p_command_ultra2_dma_done:
+ test SCSISIGI, REQI jz p_command_ultra2_shutdown;
+ test SSTAT1, (PHASEMIS|REQINIT) jz p_command_ultra2_dma_done;
+p_command_ultra2_shutdown:
+ and DFCNTRL, ~(HDMAEN|SCSIEN);
+ test DFCNTRL, (HDMAEN|SCSIEN) jnz .;
+ or SXFRCTL0, CLRSTCNT|CLRCHN;
+ }
+ jmp ITloop;
+
+/*
+ * Status phase. Wait for the data byte to appear, then read it
+ * and store it into the SCB.
+ */
+p_status:
+ call assert;
+
+ mov SCB_TARGET_STATUS, SCSIDATL;
+ jmp ITloop;
+
+/*
+ * Message out phase. If MSG_OUT is 0x80, build I full indentify message
+ * sequence and send it to the target. In addition, if the MK_MESSAGE bit
+ * is set in the SCB_CONTROL byte, interrupt the host and allow it to send
+ * it's own message.
+ *
+ * If MSG_OUT is == HOST_MSG, also interrupt the host and take a message.
+ * This is done to allow the hsot to send messages outside of an identify
+ * sequence while protecting the seqencer from testing the MK_MESSAGE bit
+ * on an SCB that might not be for the current nexus. (For example, a
+ * BDR message in responce to a bad reselection would leave us pointed to
+ * an SCB that doesn't have anything to do with the current target).
+ * Otherwise, treat MSG_OUT as a 1 byte message to send (abort, abort tag,
+ * bus device reset).
+ *
+ * When there are no messages to send, MSG_OUT should be set to MSG_NOOP,
+ * in case the target decides to put us in this phase for some strange
+ * reason.
+ */
+p_mesgout_retry:
+ or SCSISIGO,ATNO,LASTPHASE;/* turn on ATN for the retry */
+p_mesgout:
+ mov SINDEX, MSG_OUT;
+ cmp SINDEX, MSG_IDENTIFYFLAG jne p_mesgout_from_host;
+p_mesgout_identify:
+ if ((p->features & AHC_WIDE) != 0) {
+ and SINDEX,0xf,SCB_TCL; /* lun */
+ } else {
+ and SINDEX,0x7,SCB_TCL; /* lun */
+ }
+ and A,DISCENB,SCB_CONTROL; /* mask off disconnect privledge */
+ or SINDEX,A; /* or in disconnect privledge */
+ or SINDEX,MSG_IDENTIFYFLAG;
+p_mesgout_mk_message:
+ test SCB_CONTROL,MK_MESSAGE jz p_mesgout_tag;
+ mov SCSIDATL, SINDEX; /* Send the last byte */
+ jmp p_mesgout_from_host + 1;/* Skip HOST_MSG test */
+/*
+ * Send a tag message if TAG_ENB is set in the SCB control block.
+ * Use SCB_TAG (the position in the kernel's SCB array) as the tag value.
+ */
+p_mesgout_tag:
+ test SCB_CONTROL,TAG_ENB jz p_mesgout_onebyte;
+ mov SCSIDATL, SINDEX; /* Send the identify message */
+ call phase_lock;
+ cmp LASTPHASE, P_MESGOUT jne p_mesgout_done;
+ and SCSIDATL,TAG_ENB|SCB_TAG_TYPE,SCB_CONTROL;
+ call phase_lock;
+ cmp LASTPHASE, P_MESGOUT jne p_mesgout_done;
+ mov SCB_TAG jmp p_mesgout_onebyte;
+/*
+ * Interrupt the driver, and allow it to send a message
+ * if it asks.
+ */
+p_mesgout_from_host:
+ cmp SINDEX, HOST_MSG jne p_mesgout_onebyte;
+ mvi INTSTAT,AWAITING_MSG;
+ nop;
+ /*
+ * Did the host detect a phase change?
+ */
+ cmp RETURN_1, MSGOUT_PHASEMIS je p_mesgout_done;
+
+p_mesgout_onebyte:
+ mvi CLRSINT1, CLRATNO;
+ mov SCSIDATL, SINDEX;
+
+/*
+ * If the next bus phase after ATN drops is a message out, it means
+ * that the target is requesting that the last message(s) be resent.
+ */
+ call phase_lock;
+ cmp LASTPHASE, P_MESGOUT je p_mesgout_retry;
+
+p_mesgout_done:
+ mvi CLRSINT1,CLRATNO; /* Be sure to turn ATNO off */
+ mov LAST_MSG, MSG_OUT;
+ cmp MSG_OUT, MSG_IDENTIFYFLAG jne . + 2;
+ and SCB_CONTROL, ~MK_MESSAGE;
+ mvi MSG_OUT, MSG_NOOP; /* No message left */
+ jmp ITloop;
+
+/*
+ * Message in phase. Bytes are read using Automatic PIO mode.
+ */
+p_mesgin:
+ mvi ACCUM call inb_first; /* read the 1st message byte */
+
+ test A,MSG_IDENTIFYFLAG jnz mesgin_identify;
+ cmp A,MSG_DISCONNECT je mesgin_disconnect;
+ cmp A,MSG_SAVEDATAPOINTER je mesgin_sdptrs;
+ cmp ALLZEROS,A je mesgin_complete;
+ cmp A,MSG_RESTOREPOINTERS je mesgin_rdptrs;
+ cmp A,MSG_EXTENDED je mesgin_extended;
+ cmp A,MSG_MESSAGE_REJECT je mesgin_reject;
+ cmp A,MSG_NOOP je mesgin_done;
+ cmp A,MSG_IGN_WIDE_RESIDUE je mesgin_wide_residue;
+
+rej_mesgin:
+/*
+ * We have no idea what this message in is, so we issue a message reject
+ * and hope for the best. In any case, rejection should be a rare
+ * occurrence - signal the driver when it happens.
+ */
+ mvi INTSTAT,SEND_REJECT; /* let driver know */
+
+ mvi MSG_MESSAGE_REJECT call mk_mesg;
+
+mesgin_done:
+ mov NONE,SCSIDATL; /*dummy read from latch to ACK*/
+ jmp ITloop;
+
+
+mesgin_complete:
+/*
+ * We got a "command complete" message, so put the SCB_TAG into the QOUTFIFO,
+ * and trigger a completion interrupt. Before doing so, check to see if there
+ * is a residual or the status byte is something other than STATUS_GOOD (0).
+ * In either of these conditions, we upload the SCB back to the host so it can
+ * process this information. In the case of a non zero status byte, we
+ * additionally interrupt the kernel driver synchronously, allowing it to
+ * decide if sense should be retrieved. If the kernel driver wishes to request
+ * sense, it will fill the kernel SCB with a request sense command and set
+ * RETURN_1 to SEND_SENSE. If RETURN_1 is set to SEND_SENSE we redownload
+ * the SCB, and process it as the next command by adding it to the waiting list.
+ * If the kernel driver does not wish to request sense, it need only clear
+ * RETURN_1, and the command is allowed to complete normally. We don't bother
+ * to post to the QOUTFIFO in the error cases since it would require extra
+ * work in the kernel driver to ensure that the entry was removed before the
+ * command complete code tried processing it.
+ */
+
+/*
+ * First check for residuals
+ */
+ test SCB_RESID_SGCNT,0xff jnz upload_scb;
+ test SCB_TARGET_STATUS,0xff jz complete; /* Good Status? */
+upload_scb:
+ mvi DMAPARAMS, FIFORESET;
+ mov SCB_TAG call dma_scb;
+check_status:
+ test SCB_TARGET_STATUS,0xff jz complete; /* Just a residual? */
+ mvi INTSTAT,BAD_STATUS; /* let driver know */
+ nop;
+ cmp RETURN_1, SEND_SENSE jne complete;
+ /* This SCB becomes the next to execute as it will retrieve sense */
+ mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET;
+ mov SCB_TAG call dma_scb;
+add_to_waiting_list:
+ mov SCB_NEXT,WAITING_SCBH;
+ mov WAITING_SCBH, SCBPTR;
+ /*
+ * Prepare our selection hardware before the busfree so we have a
+ * high probability of winning arbitration.
+ */
+ call start_selection;
+ jmp await_busfree;
+
+complete:
+ /* If we are untagged, clear our address up in host ram */
+ test SCB_CONTROL, TAG_ENB jnz complete_post;
+ mov A, SAVED_TCL;
+ mvi UNTAGGEDSCB_OFFSET call post_byte_setup;
+ mvi SCB_LIST_NULL call post_byte;
+
+complete_post:
+ /* Post the SCB and issue an interrupt */
+ if ((p->features & AHC_QUEUE_REGS) != 0) {
+ mov A, SDSCB_QOFF;
+ } else {
+ mov A, QOUTPOS;
+ }
+ mvi QOUTFIFO_OFFSET call post_byte_setup;
+ mov SCB_TAG call post_byte;
+ if ((p->features & AHC_QUEUE_REGS) == 0) {
+ inc QOUTPOS;
+ }
+ mvi INTSTAT,CMDCMPLT;
+
+add_to_free_list:
+ call add_scb_to_free_list;
+ jmp await_busfree;
+
+/*
+ * Is it an extended message? Copy the message to our message buffer and
+ * notify the host. The host will tell us whether to reject this message,
+ * respond to it with the message that the host placed in our message buffer,
+ * or simply to do nothing.
+ */
+mesgin_extended:
+ mvi INTSTAT,EXTENDED_MSG; /* let driver know */
+ jmp ITloop;
+
+/*
+ * Is it a disconnect message? Set a flag in the SCB to remind us
+ * and await the bus going free.
+ */
+mesgin_disconnect:
+ or SCB_CONTROL,DISCONNECTED;
+ call add_scb_to_disc_list;
+ jmp await_busfree;
+
+/*
+ * Save data pointers message:
+ * Copying RAM values back to SCB, for Save Data Pointers message, but
+ * only if we've actually been into a data phase to change them. This
+ * protects against bogus data in scratch ram and the residual counts
+ * since they are only initialized when we go into data_in or data_out.
+ */
+mesgin_sdptrs:
+ test SEQ_FLAGS, DPHASE jz mesgin_done;
+ /*
+ * The SCB SGPTR becomes the next one we'll download,
+ * and the SCB DATAPTR becomes the current SHADDR.
+ * Use the residual number since STCNT is corrupted by
+ * any message transfer.
+ */
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ bmov SCB_SGCOUNT, SG_COUNT, 5;
+ bmov SCB_DATAPTR, SHADDR, 4;
+ bmov SCB_DATACNT, SCB_RESID_DCNT, 3;
+ } else {
+ mvi DINDEX, SCB_SGCOUNT;
+ mvi SG_COUNT call bcopy_5;
+ mvi DINDEX, SCB_DATAPTR;
+ mvi SHADDR call bcopy_4;
+ mvi SCB_RESID_DCNT call bcopy_3;
+ }
+ jmp mesgin_done;
+
+/*
+ * Restore pointers message? Data pointers are recopied from the
+ * SCB anytime we enter a data phase for the first time, so all
+ * we need to do is clear the DPHASE flag and let the data phase
+ * code do the rest.
+ */
+mesgin_rdptrs:
+ and SEQ_FLAGS, ~DPHASE; /*
+ * We'll reload them
+ * the next time through
+ * the dataphase.
+ */
+ jmp mesgin_done;
+
+/*
+ * Identify message? For a reconnecting target, this tells us the lun
+ * that the reconnection is for - find the correct SCB and switch to it,
+ * clearing the "disconnected" bit so we don't "find" it by accident later.
+ */
+mesgin_identify:
+
+ if ((p->features & AHC_WIDE) != 0) {
+ and A,0x0f; /* lun in lower four bits */
+ } else {
+ and A,0x07; /* lun in lower three bits */
+ }
+ or SAVED_TCL,A; /* SAVED_TCL should be complete now */
+
+ mvi ARG_2, SCB_LIST_NULL; /* SCBID of prev SCB in disc List */
+ call get_untagged_SCBID;
+ cmp ARG_1, SCB_LIST_NULL je snoop_tag;
+ if ((p->flags & AHC_PAGESCBS) != 0) {
+ test SEQ_FLAGS, SCBPTR_VALID jz use_retrieveSCB;
+ }
+ /*
+ * If the SCB was found in the disconnected list (as is
+ * always the case in non-paging scenarios), SCBPTR is already
+ * set to the correct SCB. So, simply setup the SCB and get
+ * on with things.
+ */
+ mov SCBPTR call rem_scb_from_disc_list;
+ jmp setup_SCB;
+/*
+ * Here we "snoop" the bus looking for a SIMPLE QUEUE TAG message.
+ * If we get one, we use the tag returned to find the proper
+ * SCB. With SCB paging, this requires using search for both tagged
+ * and non-tagged transactions since the SCB may exist in any slot.
+ * If we're not using SCB paging, we can use the tag as the direct
+ * index to the SCB.
+ */
+snoop_tag:
+ mov NONE,SCSIDATL; /* ACK Identify MSG */
+snoop_tag_loop:
+ call phase_lock;
+ cmp LASTPHASE, P_MESGIN jne not_found;
+ cmp SCSIBUSL,MSG_SIMPLE_Q_TAG jne not_found;
+get_tag:
+ mvi ARG_1 call inb_next; /* tag value */
+
+use_retrieveSCB:
+ call retrieveSCB;
+setup_SCB:
+ mov A, SAVED_TCL;
+ cmp SCB_TCL, A jne not_found_cleanup_scb;
+ test SCB_CONTROL,DISCONNECTED jz not_found_cleanup_scb;
+ and SCB_CONTROL,~DISCONNECTED;
+ or SEQ_FLAGS,IDENTIFY_SEEN; /* make note of IDENTIFY */
+ /* See if the host wants to send a message upon reconnection */
+ test SCB_CONTROL, MK_MESSAGE jz mesgin_done;
+ and SCB_CONTROL, ~MK_MESSAGE;
+ mvi HOST_MSG call mk_mesg;
+ jmp mesgin_done;
+
+not_found_cleanup_scb:
+ test SCB_CONTROL, DISCONNECTED jz . + 3;
+ call add_scb_to_disc_list;
+ jmp not_found;
+ call add_scb_to_free_list;
+not_found:
+ mvi INTSTAT, NO_MATCH;
+ mvi MSG_BUS_DEV_RESET call mk_mesg;
+ jmp mesgin_done;
+
+/*
+ * Message reject? Let the kernel driver handle this. If we have an
+ * outstanding WDTR or SDTR negotiation, assume that it's a response from
+ * the target selecting 8bit or asynchronous transfer, otherwise just ignore
+ * it since we have no clue what it pertains to.
+ */
+mesgin_reject:
+ mvi INTSTAT, REJECT_MSG;
+ jmp mesgin_done;
+
+/*
+ * Wide Residue. We handle the simple cases, but pass of the one hard case
+ * to the kernel (when the residue byte happened to cause us to advance our
+ * sg element array, so we know have to back that advance out).
+ */
+mesgin_wide_residue:
+ mvi ARG_1 call inb_next; /* ACK the wide_residue and get */
+ /* the size byte */
+/*
+ * In order for this to be reliable, we have to do all sorts of horrible
+ * magic in terms of resetting the datafifo and reloading the shadow layer
+ * with the correct new values (so that a subsequent save data pointers
+ * message will do the right thing). We let the kernel do that work.
+ */
+ mvi INTSTAT, WIDE_RESIDUE;
+ jmp mesgin_done;
+
+/*
+ * [ ADD MORE MESSAGE HANDLING HERE ]
+ */
+
+/*
+ * Locking the driver out, build a one-byte message passed in SINDEX
+ * if there is no active message already. SINDEX is returned intact.
+ */
+mk_mesg:
+ or SCSISIGO,ATNO,LASTPHASE;/* turn on ATNO */
+ mov MSG_OUT,SINDEX ret;
+
+/*
+ * Functions to read data in Automatic PIO mode.
+ *
+ * According to Adaptec's documentation, an ACK is not sent on input from
+ * the target until SCSIDATL is read from. So we wait until SCSIDATL is
+ * latched (the usual way), then read the data byte directly off the bus
+ * using SCSIBUSL. When we have pulled the ATN line, or we just want to
+ * acknowledge the byte, then we do a dummy read from SCISDATL. The SCSI
+ * spec guarantees that the target will hold the data byte on the bus until
+ * we send our ACK.
+ *
+ * The assumption here is that these are called in a particular sequence,
+ * and that REQ is already set when inb_first is called. inb_{first,next}
+ * use the same calling convention as inb.
+ */
+
+inb_next:
+ mov NONE,SCSIDATL; /*dummy read from latch to ACK*/
+inb_next_wait:
+ /*
+ * If there is a parity error, wait for the kernel to
+ * see the interrupt and prepare our message response
+ * before continuing.
+ */
+ test SSTAT1, REQINIT jz inb_next_wait;
+ test SSTAT1, SCSIPERR jnz .;
+ and LASTPHASE, PHASE_MASK, SCSISIGI;
+ cmp LASTPHASE, P_MESGIN jne mesgin_phasemis;
+inb_first:
+ mov DINDEX,SINDEX;
+ mov DINDIR,SCSIBUSL ret; /*read byte directly from bus*/
+inb_last:
+ mov NONE,SCSIDATL ret; /*dummy read from latch to ACK*/
+
+
+mesgin_phasemis:
+/*
+ * We expected to receive another byte, but the target changed phase
+ */
+ mvi INTSTAT, MSGIN_PHASEMIS;
+ jmp ITloop;
+
+/*
+ * DMA data transfer. HADDR and HCNT must be loaded first, and
+ * SINDEX should contain the value to load DFCNTRL with - 0x3d for
+ * host->scsi, or 0x39 for scsi->host. The SCSI channel is cleared
+ * during initialization.
+ */
+if ((p->features & AHC_ULTRA2) == 0) {
+dma:
+ mov DFCNTRL,SINDEX;
+dma_loop:
+ test SSTAT0,DMADONE jnz dma_dmadone;
+ test SSTAT1,PHASEMIS jz dma_loop; /* ie. underrun */
+dma_phasemis:
+ test SSTAT0,SDONE jnz dma_checkfifo;
+ mov SINDEX,ALLZEROS; /* Notify caller of phasemiss */
+
+/*
+ * We will be "done" DMAing when the transfer count goes to zero, or
+ * the target changes the phase (in light of this, it makes sense that
+ * the DMA circuitry doesn't ACK when PHASEMIS is active). If we are
+ * doing a SCSI->Host transfer, the data FIFO should be flushed auto-
+ * magically on STCNT=0 or a phase change, so just wait for FIFO empty
+ * status.
+ */
+dma_checkfifo:
+ test DFCNTRL,DIRECTION jnz dma_fifoempty;
+dma_fifoflush:
+ test DFSTATUS,FIFOEMP jz dma_fifoflush;
+
+dma_fifoempty:
+ /* Don't clobber an inprogress host data transfer */
+ test DFSTATUS, MREQPEND jnz dma_fifoempty;
+/*
+ * Now shut the DMA enables off and make sure that the DMA enables are
+ * actually off first lest we get an ILLSADDR.
+ */
+dma_dmadone:
+ cmp LASTPHASE, P_COMMAND je dma_await_nreq;
+ test SCSIRATE, 0x0f jnz dma_shutdown;
+dma_await_nreq:
+ test SCSISIGI, REQI jz dma_shutdown;
+ test SSTAT1, (PHASEMIS|REQINIT) jz dma_await_nreq;
+dma_shutdown:
+ and DFCNTRL, ~(SCSIEN|SDMAEN|HDMAEN);
+dma_halt:
+ /*
+ * Some revisions of the aic7880 have a problem where, if the
+ * data fifo is full, but the PCI input latch is not empty,
+ * HDMAEN cannot be cleared. The fix used here is to attempt
+ * to drain the data fifo until there is space for the input
+ * latch to drain and HDMAEN de-asserts.
+ */
+ if ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0) {
+ mov NONE, DFDAT;
+ }
+ test DFCNTRL, (SCSIEN|SDMAEN|HDMAEN) jnz dma_halt;
+}
+return:
+ ret;
+
+/*
+ * Assert that if we've been reselected, then we've seen an IDENTIFY
+ * message.
+ */
+assert:
+ test SEQ_FLAGS,IDENTIFY_SEEN jnz return; /* seen IDENTIFY? */
+
+ mvi INTSTAT,NO_IDENT ret; /* no - tell the kernel */
+
+/*
+ * Locate a disconnected SCB either by SAVED_TCL (ARG_1 is SCB_LIST_NULL)
+ * or by the SCBID ARG_1. The search begins at the SCB index passed in
+ * via SINDEX which is an SCB that must be on the disconnected list. If
+ * the SCB cannot be found, SINDEX will be SCB_LIST_NULL, otherwise, SCBPTR
+ * is set to the proper SCB.
+ */
+findSCB:
+ mov SCBPTR,SINDEX; /* Initialize SCBPTR */
+ cmp ARG_1, SCB_LIST_NULL jne findSCB_by_SCBID;
+ mov A, SAVED_TCL;
+ mvi SCB_TCL jmp findSCB_loop; /* &SCB_TCL -> SINDEX */
+findSCB_by_SCBID:
+ mov A, ARG_1; /* Tag passed in ARG_1 */
+ mvi SCB_TAG jmp findSCB_loop; /* &SCB_TAG -> SINDEX */
+findSCB_next:
+ mov ARG_2, SCBPTR;
+ cmp SCB_NEXT, SCB_LIST_NULL je notFound;
+ mov SCBPTR,SCB_NEXT;
+ dec SINDEX; /* Last comparison moved us too far */
+findSCB_loop:
+ cmp SINDIR, A jne findSCB_next;
+ mov SINDEX, SCBPTR ret;
+notFound:
+ mvi SINDEX, SCB_LIST_NULL ret;
+
+/*
+ * Retrieve an SCB by SCBID first searching the disconnected list falling
+ * back to DMA'ing the SCB down from the host. This routine assumes that
+ * ARG_1 is the SCBID of interrest and that SINDEX is the position in the
+ * disconnected list to start the search from. If SINDEX is SCB_LIST_NULL,
+ * we go directly to the host for the SCB.
+ */
+retrieveSCB:
+ test SEQ_FLAGS, SCBPTR_VALID jz retrieve_from_host;
+ mov SCBPTR call findSCB; /* Continue the search */
+ cmp SINDEX, SCB_LIST_NULL je retrieve_from_host;
+
+/*
+ * This routine expects SINDEX to contain the index of the SCB to be
+ * removed, SCBPTR to be pointing to that SCB, and ARG_2 to be the
+ * SCBID of the SCB just previous to this one in the list or SCB_LIST_NULL
+ * if it is at the head.
+ */
+rem_scb_from_disc_list:
+/* Remove this SCB from the disconnection list */
+ cmp ARG_2, SCB_LIST_NULL je rHead;
+ mov DINDEX, SCB_NEXT;
+ mov SCBPTR, ARG_2;
+ mov SCB_NEXT, DINDEX;
+ mov SCBPTR, SINDEX ret;
+rHead:
+ mov DISCONNECTED_SCBH,SCB_NEXT ret;
+
+retrieve_from_host:
+/*
+ * We didn't find it. Pull an SCB and DMA down the one we want.
+ * We should never get here in the non-paging case.
+ */
+ mov ALLZEROS call get_free_or_disc_scb;
+ mvi DMAPARAMS, HDMAEN|DIRECTION|FIFORESET;
+ /* Jump instead of call as we want to return anyway */
+ mov ARG_1 jmp dma_scb;
+
+/*
+ * Determine whether a target is using tagged or non-tagged transactions
+ * by first looking for a matching transaction based on the TCL and if
+ * that fails, looking up this device in the host's untagged SCB array.
+ * The TCL to search for is assumed to be in SAVED_TCL. The value is
+ * returned in ARG_1 (SCB_LIST_NULL for tagged, SCBID for non-tagged).
+ * The SCBPTR_VALID bit is set in SEQ_FLAGS if we found the information
+ * in an SCB instead of having to go to the host.
+ */
+get_untagged_SCBID:
+ cmp DISCONNECTED_SCBH, SCB_LIST_NULL je get_SCBID_from_host;
+ mvi ARG_1, SCB_LIST_NULL;
+ mov DISCONNECTED_SCBH call findSCB;
+ cmp SINDEX, SCB_LIST_NULL je get_SCBID_from_host;
+ or SEQ_FLAGS, SCBPTR_VALID;/* Was in disconnected list */
+ test SCB_CONTROL, TAG_ENB jnz . + 2;
+ mov ARG_1, SCB_TAG ret;
+ mvi ARG_1, SCB_LIST_NULL ret;
+
+/*
+ * Fetch a byte from host memory given an index of (A + (256 * SINDEX))
+ * and a base address of SCBID_ADDR. The byte is returned in RETURN_2.
+ */
+fetch_byte:
+ mov ARG_2, SINDEX;
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ mvi DINDEX, CCHADDR;
+ mvi SCBID_ADDR call set_1byte_addr;
+ mvi CCHCNT, 1;
+ mvi CCSGCTL, CCSGEN|CCSGRESET;
+ test CCSGCTL, CCSGDONE jz .;
+ mvi CCSGCTL, CCSGRESET;
+ bmov RETURN_2, CCSGRAM, 1 ret;
+ } else {
+ mvi DINDEX, HADDR;
+ mvi SCBID_ADDR call set_1byte_addr;
+ mvi HCNT[0], 1;
+ clr HCNT[1];
+ clr HCNT[2];
+ mvi DFCNTRL, HDMAEN|DIRECTION|FIFORESET;
+ call dma_finish;
+ mov RETURN_2, DFDAT ret;
+ }
+
+/*
+ * Prepare the hardware to post a byte to host memory given an
+ * index of (A + (256 * SINDEX)) and a base address of SCBID_ADDR.
+ */
+post_byte_setup:
+ mov ARG_2, SINDEX;
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ mvi DINDEX, CCHADDR;
+ mvi SCBID_ADDR call set_1byte_addr;
+ mvi CCHCNT, 1;
+ mvi CCSCBCTL, CCSCBRESET ret;
+ } else {
+ mvi DINDEX, HADDR;
+ mvi SCBID_ADDR call set_1byte_addr;
+ mvi HCNT[0], 1;
+ clr HCNT[1];
+ clr HCNT[2];
+ mvi DFCNTRL, FIFORESET ret;
+ }
+
+post_byte:
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ bmov CCSCBRAM, SINDEX, 1;
+ or CCSCBCTL, CCSCBEN|CCSCBRESET;
+ test CCSCBCTL, CCSCBDONE jz .;
+ clr CCSCBCTL ret;
+ } else {
+ mov DFDAT, SINDEX;
+ or DFCNTRL, HDMAEN|FIFOFLUSH;
+ jmp dma_finish;
+ }
+
+get_SCBID_from_host:
+ mov A, SAVED_TCL;
+ mvi UNTAGGEDSCB_OFFSET call fetch_byte;
+ mov RETURN_1, RETURN_2 ret;
+
+phase_lock:
+ test SSTAT1, REQINIT jz phase_lock;
+ test SSTAT1, SCSIPERR jnz phase_lock;
+ and SCSISIGO, PHASE_MASK, SCSISIGI;
+ and LASTPHASE, PHASE_MASK, SCSISIGI ret;
+
+if ((p->features & AHC_CMD_CHAN) == 0) {
+set_stcnt_from_hcnt:
+ mov STCNT[0], HCNT[0];
+ mov STCNT[1], HCNT[1];
+ mov STCNT[2], HCNT[2] ret;
+
+bcopy_7:
+ mov DINDIR, SINDIR;
+ mov DINDIR, SINDIR;
+bcopy_5:
+ mov DINDIR, SINDIR;
+bcopy_4:
+ mov DINDIR, SINDIR;
+bcopy_3:
+ mov DINDIR, SINDIR;
+ mov DINDIR, SINDIR;
+ mov DINDIR, SINDIR ret;
+}
+
+/*
+ * Setup addr assuming that A is an index into
+ * an array of 32byte objects, SINDEX contains
+ * the base address of that array, and DINDEX
+ * contains the base address of the location
+ * to store the indexed address.
+ */
+set_32byte_addr:
+ shr ARG_2, 3, A;
+ shl A, 5;
+/*
+ * Setup addr assuming that A + (ARG_1 * 256) is an
+ * index into an array of 1byte objects, SINDEX contains
+ * the base address of that array, and DINDEX contains
+ * the base address of the location to store the computed
+ * address.
+ */
+set_1byte_addr:
+ add DINDIR, A, SINDIR;
+ mov A, ARG_2;
+ adc DINDIR, A, SINDIR;
+ clr A;
+ adc DINDIR, A, SINDIR;
+ adc DINDIR, A, SINDIR ret;
+
+/*
+ * Either post or fetch and SCB from host memory based on the
+ * DIRECTION bit in DMAPARAMS. The host SCB index is in SINDEX.
+ */
+dma_scb:
+ mov A, SINDEX;
+ if ((p->features & AHC_CMD_CHAN) != 0) {
+ mvi DINDEX, CCHADDR;
+ mvi HSCB_ADDR call set_32byte_addr;
+ mov CCSCBPTR, SCBPTR;
+ mvi CCHCNT, 32;
+ test DMAPARAMS, DIRECTION jz dma_scb_tohost;
+ mvi CCSCBCTL, CCARREN|CCSCBEN|CCSCBDIR|CCSCBRESET;
+ cmp CCSCBCTL, CCSCBDONE|ARRDONE|CCARREN|CCSCBEN|CCSCBDIR jne .;
+ jmp dma_scb_finish;
+dma_scb_tohost:
+ if ((p->features & AHC_ULTRA2) == 0) {
+ mvi CCSCBCTL, CCSCBRESET;
+ bmov CCSCBRAM, SCB_CONTROL, 32;
+ or CCSCBCTL, CCSCBEN|CCSCBRESET;
+ test CCSCBCTL, CCSCBDONE jz .;
+ }
+ if ((p->features & AHC_ULTRA2) != 0) {
+ if ((p->bugs & AHC_BUG_SCBCHAN_UPLOAD) != 0) {
+ mvi CCSCBCTL, CCARREN|CCSCBRESET;
+ cmp CCSCBCTL, ARRDONE|CCARREN jne .;
+ mvi CCHCNT, 32;
+ mvi CCSCBCTL, CCSCBEN|CCSCBRESET;
+ cmp CCSCBCTL, CCSCBDONE|CCSCBEN jne .;
+ } else {
+ mvi CCSCBCTL, CCARREN|CCSCBEN|CCSCBRESET;
+ cmp CCSCBCTL, CCSCBDONE|ARRDONE|CCARREN|CCSCBEN jne .;
+ }
+ }
+dma_scb_finish:
+ clr CCSCBCTL;
+ test CCSCBCTL, CCARREN|CCSCBEN jnz .;
+ ret;
+ }
+ if ((p->features & AHC_CMD_CHAN) == 0) {
+ mvi DINDEX, HADDR;
+ mvi HSCB_ADDR call set_32byte_addr;
+ mvi HCNT[0], 32;
+ clr HCNT[1];
+ clr HCNT[2];
+ mov DFCNTRL, DMAPARAMS;
+ test DMAPARAMS, DIRECTION jnz dma_scb_fromhost;
+ /* Fill it with the SCB data */
+copy_scb_tofifo:
+ mvi SINDEX, SCB_CONTROL;
+ add A, 32, SINDEX;
+copy_scb_tofifo_loop:
+ mov DFDAT,SINDIR;
+ mov DFDAT,SINDIR;
+ mov DFDAT,SINDIR;
+ mov DFDAT,SINDIR;
+ mov DFDAT,SINDIR;
+ mov DFDAT,SINDIR;
+ mov DFDAT,SINDIR;
+ mov DFDAT,SINDIR;
+ cmp SINDEX, A jne copy_scb_tofifo_loop;
+ or DFCNTRL, HDMAEN|FIFOFLUSH;
+ jmp dma_finish;
+dma_scb_fromhost:
+ mvi DINDEX, SCB_CONTROL;
+ if ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0) {
+ /*
+ * Set the A to -24. It it hits 0, then we let
+ * our code fall through to dfdat_in_8 to complete
+ * the last of the copy.
+ *
+ * Also, things happen 8 bytes at a time in this
+ * case, so we may need to drain the fifo at most
+ * 3 times to keep things flowing
+ */
+ mvi A, -24;
+dma_scb_hang_fifo:
+ /* Wait for the first bit of data to hit the fifo */
+ test DFSTATUS, FIFOEMP jnz .;
+dma_scb_hang_wait:
+ /* OK, now they've started to transfer into the fifo,
+ * so wait for them to stop trying to transfer any
+ * more data.
+ */
+ test DFSTATUS, MREQPEND jnz .;
+ /*
+ * OK, they started, then they stopped, now see if they
+ * managed to complete the job before stopping. Try
+ * it multiple times to give the chip a few cycles to
+ * set the flag if it did complete.
+ */
+ test DFSTATUS, HDONE jnz dma_scb_hang_dma_done;
+ test DFSTATUS, HDONE jnz dma_scb_hang_dma_done;
+ test DFSTATUS, HDONE jnz dma_scb_hang_dma_done;
+ /*
+ * Too bad, the chip didn't complete the DMA, but there
+ * aren't any more memory requests pending, so that
+ * means it stopped part way through and hung. That's
+ * our bug, so now we drain what data there is in the
+ * fifo in order to get things going again.
+ */
+dma_scb_hang_empty_fifo:
+ call dfdat_in_8;
+ add A, 8;
+ add SINDEX, A, HCNT;
+ /*
+ * If there are another 8 bytes of data waiting in the
+ * fifo, then the carry bit will be set as a result
+ * of the above add command (unless A is non-negative,
+ * in which case the carry bit won't be set).
+ */
+ jc dma_scb_hang_empty_fifo;
+ /*
+ * We've emptied the fifo now, but we wouldn't have got
+ * here if the memory transfer hadn't stopped part way
+ * through, so go back up to the beginning of the
+ * loop and start over. When it succeeds in getting
+ * all the data down, HDONE will be set and we'll
+ * jump to the code just below here.
+ */
+ jmp dma_scb_hang_fifo;
+dma_scb_hang_dma_done:
+ and DFCNTRL, ~HDMAEN;
+ test DFCNTRL, HDMAEN jnz .;
+ call dfdat_in_8;
+ add A, 8;
+ cmp A, 8 jne . - 2;
+ ret;
+ } else {
+ call dma_finish;
+ call dfdat_in_8;
+ call dfdat_in_8;
+ call dfdat_in_8;
+ }
+dfdat_in_8:
+ mov DINDIR,DFDAT;
+dfdat_in_7:
+ mov DINDIR,DFDAT;
+ mov DINDIR,DFDAT;
+ mov DINDIR,DFDAT;
+ mov DINDIR,DFDAT;
+ mov DINDIR,DFDAT;
+ mov DINDIR,DFDAT;
+ mov DINDIR,DFDAT ret;
+ }
+
+
+/*
+ * Wait for DMA from host memory to data FIFO to complete, then disable
+ * DMA and wait for it to acknowledge that it's off.
+ */
+if ((p->features & AHC_CMD_CHAN) == 0) {
+dma_finish:
+ test DFSTATUS,HDONE jz dma_finish;
+ /* Turn off DMA */
+ and DFCNTRL, ~HDMAEN;
+ test DFCNTRL, HDMAEN jnz .;
+ ret;
+}
+
+add_scb_to_free_list:
+ if ((p->flags & AHC_PAGESCBS) != 0) {
+ mov SCB_NEXT, FREE_SCBH;
+ mov FREE_SCBH, SCBPTR;
+ }
+ mvi SCB_TAG, SCB_LIST_NULL ret;
+
+if ((p->flags & AHC_PAGESCBS) != 0) {
+get_free_or_disc_scb:
+ cmp FREE_SCBH, SCB_LIST_NULL jne dequeue_free_scb;
+ cmp DISCONNECTED_SCBH, SCB_LIST_NULL jne dequeue_disc_scb;
+return_error:
+ mvi SINDEX, SCB_LIST_NULL ret;
+dequeue_disc_scb:
+ mov SCBPTR, DISCONNECTED_SCBH;
+dma_up_scb:
+ mvi DMAPARAMS, FIFORESET;
+ mov SCB_TAG call dma_scb;
+unlink_disc_scb:
+ mov DISCONNECTED_SCBH, SCB_NEXT ret;
+dequeue_free_scb:
+ mov SCBPTR, FREE_SCBH;
+ mov FREE_SCBH, SCB_NEXT ret;
+}
+
+add_scb_to_disc_list:
+/*
+ * Link this SCB into the DISCONNECTED list. This list holds the
+ * candidates for paging out an SCB if one is needed for a new command.
+ * Modifying the disconnected list is a critical(pause dissabled) section.
+ */
+ mov SCB_NEXT, DISCONNECTED_SCBH;
+ mov DISCONNECTED_SCBH, SCBPTR ret;
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_proc.c b/drivers/scsi/aic7xxx_old/aic7xxx_proc.c
new file mode 100644
index 000000000000..3bf334931a8a
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/aic7xxx_proc.c
@@ -0,0 +1,374 @@
+/*+M*************************************************************************
+ * Adaptec AIC7xxx device driver proc support for Linux.
+ *
+ * Copyright (c) 1995, 1996 Dean W. Gehnert
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * ----------------------------------------------------------------
+ * o Modified from the EATA-DMA /proc support.
+ * o Additional support for device block statistics provided by
+ * Matthew Jacob.
+ * o Correction of overflow by Heinz Mauelshagen
+ * o Adittional corrections by Doug Ledford
+ *
+ * Dean W. Gehnert, deang@teleport.com, 05/01/96
+ *
+ * $Id: aic7xxx_proc.c,v 4.1 1997/06/97 08:23:42 deang Exp $
+ *-M*************************************************************************/
+
+#include <linux/config.h>
+
+#define BLS (&aic7xxx_buffer[size])
+#define HDRB \
+" 0 - 4K 4 - 16K 16 - 64K 64 - 256K 256K - 1M 1M+"
+
+#ifdef PROC_DEBUG
+extern int vsprintf(char *, const char *, va_list);
+
+static void
+proc_debug(const char *fmt, ...)
+{
+ va_list ap;
+ char buf[256];
+
+ va_start(ap, fmt);
+ vsprintf(buf, fmt, ap);
+ printk(buf);
+ va_end(ap);
+}
+#else /* PROC_DEBUG */
+# define proc_debug(fmt, args...)
+#endif /* PROC_DEBUG */
+
+static int aic7xxx_buffer_size = 0;
+static char *aic7xxx_buffer = NULL;
+
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_set_info
+ *
+ * Description:
+ * Set parameters for the driver from the /proc filesystem.
+ *-F*************************************************************************/
+static int
+aic7xxx_set_info(char *buffer, int length, struct Scsi_Host *HBAptr)
+{
+ proc_debug("aic7xxx_set_info(): %s\n", buffer);
+ return (-ENOSYS); /* Currently this is a no-op */
+}
+
+
+/*+F*************************************************************************
+ * Function:
+ * aic7xxx_proc_info
+ *
+ * Description:
+ * Return information to handle /proc support for the driver.
+ *-F*************************************************************************/
+int
+aic7xxx_proc_info ( struct Scsi_Host *HBAptr, char *buffer, char **start, off_t offset, int length,
+ int inout)
+{
+ struct aic7xxx_host *p;
+ struct aic_dev_data *aic_dev;
+ struct scsi_device *sdptr;
+ int size = 0;
+ unsigned char i;
+ unsigned char tindex;
+
+ for(p=first_aic7xxx; p && p->host != HBAptr; p=p->next)
+ ;
+
+ if (!p)
+ {
+ size += sprintf(buffer, "Can't find adapter for host number %d\n", HBAptr->host_no);
+ if (size > length)
+ {
+ return (size);
+ }
+ else
+ {
+ return (length);
+ }
+ }
+
+ if (inout == TRUE) /* Has data been written to the file? */
+ {
+ return (aic7xxx_set_info(buffer, length, HBAptr));
+ }
+
+ p = (struct aic7xxx_host *) HBAptr->hostdata;
+
+ /*
+ * It takes roughly 1K of space to hold all relevant card info, not
+ * counting any proc stats, so we start out with a 1.5k buffer size and
+ * if proc_stats is defined, then we sweep the stats structure to see
+ * how many drives we will be printing out for and add 384 bytes per
+ * device with active stats.
+ *
+ * Hmmmm...that 1.5k seems to keep growing as items get added so they
+ * can be easily viewed for debugging purposes. So, we bumped that
+ * 1.5k to 4k so we can quit having to bump it all the time.
+ */
+
+ size = 4096;
+ list_for_each_entry(aic_dev, &p->aic_devs, list)
+ size += 512;
+ if (aic7xxx_buffer_size != size)
+ {
+ if (aic7xxx_buffer != NULL)
+ {
+ kfree(aic7xxx_buffer);
+ aic7xxx_buffer_size = 0;
+ }
+ aic7xxx_buffer = kmalloc(size, GFP_KERNEL);
+ }
+ if (aic7xxx_buffer == NULL)
+ {
+ size = sprintf(buffer, "AIC7xxx - kmalloc error at line %d\n",
+ __LINE__);
+ return size;
+ }
+ aic7xxx_buffer_size = size;
+
+ size = 0;
+ size += sprintf(BLS, "Adaptec AIC7xxx driver version: ");
+ size += sprintf(BLS, "%s/", AIC7XXX_C_VERSION);
+ size += sprintf(BLS, "%s", AIC7XXX_H_VERSION);
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, "Adapter Configuration:\n");
+ size += sprintf(BLS, " SCSI Adapter: %s\n",
+ board_names[p->board_name_index]);
+ if (p->flags & AHC_TWIN)
+ size += sprintf(BLS, " Twin Channel Controller ");
+ else
+ {
+ char *channel = "";
+ char *ultra = "";
+ char *wide = "Narrow ";
+ if (p->flags & AHC_MULTI_CHANNEL)
+ {
+ channel = " Channel A";
+ if (p->flags & (AHC_CHNLB|AHC_CHNLC))
+ channel = (p->flags & AHC_CHNLB) ? " Channel B" : " Channel C";
+ }
+ if (p->features & AHC_WIDE)
+ wide = "Wide ";
+ if (p->features & AHC_ULTRA3)
+ {
+ switch(p->chip & AHC_CHIPID_MASK)
+ {
+ case AHC_AIC7892:
+ case AHC_AIC7899:
+ ultra = "Ultra-160/m LVD/SE ";
+ break;
+ default:
+ ultra = "Ultra-3 LVD/SE ";
+ break;
+ }
+ }
+ else if (p->features & AHC_ULTRA2)
+ ultra = "Ultra-2 LVD/SE ";
+ else if (p->features & AHC_ULTRA)
+ ultra = "Ultra ";
+ size += sprintf(BLS, " %s%sController%s ",
+ ultra, wide, channel);
+ }
+ switch(p->chip & ~AHC_CHIPID_MASK)
+ {
+ case AHC_VL:
+ size += sprintf(BLS, "at VLB slot %d\n", p->pci_device_fn);
+ break;
+ case AHC_EISA:
+ size += sprintf(BLS, "at EISA slot %d\n", p->pci_device_fn);
+ break;
+ default:
+ size += sprintf(BLS, "at PCI %d/%d/%d\n", p->pci_bus,
+ PCI_SLOT(p->pci_device_fn), PCI_FUNC(p->pci_device_fn));
+ break;
+ }
+ if( !(p->maddr) )
+ {
+ size += sprintf(BLS, " Programmed I/O Base: %lx\n", p->base);
+ }
+ else
+ {
+ size += sprintf(BLS, " PCI MMAPed I/O Base: 0x%lx\n", p->mbase);
+ }
+ if( (p->chip & (AHC_VL | AHC_EISA)) )
+ {
+ size += sprintf(BLS, " BIOS Memory Address: 0x%08x\n", p->bios_address);
+ }
+ size += sprintf(BLS, " Adapter SEEPROM Config: %s\n",
+ (p->flags & AHC_SEEPROM_FOUND) ? "SEEPROM found and used." :
+ ((p->flags & AHC_USEDEFAULTS) ? "SEEPROM not found, using defaults." :
+ "SEEPROM not found, using leftover BIOS values.") );
+ size += sprintf(BLS, " Adaptec SCSI BIOS: %s\n",
+ (p->flags & AHC_BIOS_ENABLED) ? "Enabled" : "Disabled");
+ size += sprintf(BLS, " IRQ: %d\n", HBAptr->irq);
+ size += sprintf(BLS, " SCBs: Active %d, Max Active %d,\n",
+ p->activescbs, p->max_activescbs);
+ size += sprintf(BLS, " Allocated %d, HW %d, "
+ "Page %d\n", p->scb_data->numscbs, p->scb_data->maxhscbs,
+ p->scb_data->maxscbs);
+ if (p->flags & AHC_EXTERNAL_SRAM)
+ size += sprintf(BLS, " Using External SCB SRAM\n");
+ size += sprintf(BLS, " Interrupts: %ld", p->isr_count);
+ if (p->chip & AHC_EISA)
+ {
+ size += sprintf(BLS, " %s\n",
+ (p->pause & IRQMS) ? "(Level Sensitive)" : "(Edge Triggered)");
+ }
+ else
+ {
+ size += sprintf(BLS, "\n");
+ }
+ size += sprintf(BLS, " BIOS Control Word: 0x%04x\n",
+ p->bios_control);
+ size += sprintf(BLS, " Adapter Control Word: 0x%04x\n",
+ p->adapter_control);
+ size += sprintf(BLS, " Extended Translation: %sabled\n",
+ (p->flags & AHC_EXTEND_TRANS_A) ? "En" : "Dis");
+ size += sprintf(BLS, "Disconnect Enable Flags: 0x%04x\n", p->discenable);
+ if (p->features & (AHC_ULTRA | AHC_ULTRA2))
+ {
+ size += sprintf(BLS, " Ultra Enable Flags: 0x%04x\n", p->ultraenb);
+ }
+ size += sprintf(BLS, "Default Tag Queue Depth: %d\n", aic7xxx_default_queue_depth);
+ size += sprintf(BLS, " Tagged Queue By Device array for aic7xxx host "
+ "instance %d:\n", p->instance);
+ size += sprintf(BLS, " {");
+ for(i=0; i < (MAX_TARGETS - 1); i++)
+ size += sprintf(BLS, "%d,",aic7xxx_tag_info[p->instance].tag_commands[i]);
+ size += sprintf(BLS, "%d}\n",aic7xxx_tag_info[p->instance].tag_commands[i]);
+
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, "Statistics:\n\n");
+ list_for_each_entry(aic_dev, &p->aic_devs, list)
+ {
+ sdptr = aic_dev->SDptr;
+ tindex = sdptr->channel << 3 | sdptr->id;
+ size += sprintf(BLS, "(scsi%d:%d:%d:%d)\n",
+ p->host_no, sdptr->channel, sdptr->id, sdptr->lun);
+ size += sprintf(BLS, " Device using %s/%s",
+ (aic_dev->cur.width == MSG_EXT_WDTR_BUS_16_BIT) ?
+ "Wide" : "Narrow",
+ (aic_dev->cur.offset != 0) ?
+ "Sync transfers at " : "Async transfers.\n" );
+ if (aic_dev->cur.offset != 0)
+ {
+ struct aic7xxx_syncrate *sync_rate;
+ unsigned char options = aic_dev->cur.options;
+ int period = aic_dev->cur.period;
+ int rate = (aic_dev->cur.width ==
+ MSG_EXT_WDTR_BUS_16_BIT) ? 1 : 0;
+
+ sync_rate = aic7xxx_find_syncrate(p, &period, 0, &options);
+ if (sync_rate != NULL)
+ {
+ size += sprintf(BLS, "%s MByte/sec, offset %d\n",
+ sync_rate->rate[rate],
+ aic_dev->cur.offset );
+ }
+ else
+ {
+ size += sprintf(BLS, "3.3 MByte/sec, offset %d\n",
+ aic_dev->cur.offset );
+ }
+ }
+ size += sprintf(BLS, " Transinfo settings: ");
+ size += sprintf(BLS, "current(%d/%d/%d/%d), ",
+ aic_dev->cur.period,
+ aic_dev->cur.offset,
+ aic_dev->cur.width,
+ aic_dev->cur.options);
+ size += sprintf(BLS, "goal(%d/%d/%d/%d), ",
+ aic_dev->goal.period,
+ aic_dev->goal.offset,
+ aic_dev->goal.width,
+ aic_dev->goal.options);
+ size += sprintf(BLS, "user(%d/%d/%d/%d)\n",
+ p->user[tindex].period,
+ p->user[tindex].offset,
+ p->user[tindex].width,
+ p->user[tindex].options);
+ if(sdptr->simple_tags)
+ {
+ size += sprintf(BLS, " Tagged Command Queueing Enabled, Ordered Tags %s, Depth %d/%d\n", sdptr->ordered_tags ? "Enabled" : "Disabled", sdptr->queue_depth, aic_dev->max_q_depth);
+ }
+ if(aic_dev->barrier_total)
+ size += sprintf(BLS, " Total transfers %ld:\n (%ld/%ld/%ld/%ld reads/writes/REQ_BARRIER/Ordered Tags)\n",
+ aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total,
+ aic_dev->barrier_total, aic_dev->ordered_total);
+ else
+ size += sprintf(BLS, " Total transfers %ld:\n (%ld/%ld reads/writes)\n",
+ aic_dev->r_total+aic_dev->w_total, aic_dev->r_total, aic_dev->w_total);
+ size += sprintf(BLS, "%s\n", HDRB);
+ size += sprintf(BLS, " Reads:");
+ for (i = 0; i < ARRAY_SIZE(aic_dev->r_bins); i++)
+ {
+ size += sprintf(BLS, " %10ld", aic_dev->r_bins[i]);
+ }
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, " Writes:");
+ for (i = 0; i < ARRAY_SIZE(aic_dev->w_bins); i++)
+ {
+ size += sprintf(BLS, " %10ld", aic_dev->w_bins[i]);
+ }
+ size += sprintf(BLS, "\n");
+ size += sprintf(BLS, "\n\n");
+ }
+ if (size >= aic7xxx_buffer_size)
+ {
+ printk(KERN_WARNING "aic7xxx: Overflow in aic7xxx_proc.c\n");
+ }
+
+ if (offset > size - 1)
+ {
+ kfree(aic7xxx_buffer);
+ aic7xxx_buffer = NULL;
+ aic7xxx_buffer_size = length = 0;
+ *start = NULL;
+ }
+ else
+ {
+ *start = buffer;
+ length = min_t(int, length, size - offset);
+ memcpy(buffer, &aic7xxx_buffer[offset], length);
+ }
+
+ return (length);
+}
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 2
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -2
+ * c-argdecl-indent: 2
+ * c-label-offset: -2
+ * c-continued-statement-offset: 2
+ * c-continued-brace-offset: 0
+ * indent-tabs-mode: nil
+ * tab-width: 8
+ * End:
+ */
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_reg.h b/drivers/scsi/aic7xxx_old/aic7xxx_reg.h
new file mode 100644
index 000000000000..27f2334abc71
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/aic7xxx_reg.h
@@ -0,0 +1,629 @@
+/*
+ * DO NOT EDIT - This file is automatically generated.
+ */
+
+#define SCSISEQ 0x00
+#define TEMODE 0x80
+#define ENSELO 0x40
+#define ENSELI 0x20
+#define ENRSELI 0x10
+#define ENAUTOATNO 0x08
+#define ENAUTOATNI 0x04
+#define ENAUTOATNP 0x02
+#define SCSIRSTO 0x01
+
+#define SXFRCTL0 0x01
+#define DFON 0x80
+#define DFPEXP 0x40
+#define FAST20 0x20
+#define CLRSTCNT 0x10
+#define SPIOEN 0x08
+#define SCAMEN 0x04
+#define CLRCHN 0x02
+
+#define SXFRCTL1 0x02
+#define BITBUCKET 0x80
+#define SWRAPEN 0x40
+#define ENSPCHK 0x20
+#define STIMESEL 0x18
+#define ENSTIMER 0x04
+#define ACTNEGEN 0x02
+#define STPWEN 0x01
+
+#define SCSISIGO 0x03
+#define CDO 0x80
+#define IOO 0x40
+#define MSGO 0x20
+#define ATNO 0x10
+#define SELO 0x08
+#define BSYO 0x04
+#define REQO 0x02
+#define ACKO 0x01
+
+#define SCSISIGI 0x03
+#define ATNI 0x10
+#define SELI 0x08
+#define BSYI 0x04
+#define REQI 0x02
+#define ACKI 0x01
+
+#define SCSIRATE 0x04
+#define WIDEXFER 0x80
+#define SXFR_ULTRA2 0x7f
+#define SXFR 0x70
+#define SOFS 0x0f
+
+#define SCSIID 0x05
+#define SCSIOFFSET 0x05
+#define SOFS_ULTRA2 0x7f
+
+#define SCSIDATL 0x06
+
+#define SCSIDATH 0x07
+
+#define STCNT 0x08
+
+#define OPTIONMODE 0x08
+#define AUTORATEEN 0x80
+#define AUTOACKEN 0x40
+#define ATNMGMNTEN 0x20
+#define BUSFREEREV 0x10
+#define EXPPHASEDIS 0x08
+#define SCSIDATL_IMGEN 0x04
+#define AUTO_MSGOUT_DE 0x02
+#define DIS_MSGIN_DUALEDGE 0x01
+
+#define CLRSINT0 0x0b
+#define CLRSELDO 0x40
+#define CLRSELDI 0x20
+#define CLRSELINGO 0x10
+#define CLRSWRAP 0x08
+#define CLRSPIORDY 0x02
+
+#define SSTAT0 0x0b
+#define TARGET 0x80
+#define SELDO 0x40
+#define SELDI 0x20
+#define SELINGO 0x10
+#define IOERR 0x08
+#define SWRAP 0x08
+#define SDONE 0x04
+#define SPIORDY 0x02
+#define DMADONE 0x01
+
+#define CLRSINT1 0x0c
+#define CLRSELTIMEO 0x80
+#define CLRATNO 0x40
+#define CLRSCSIRSTI 0x20
+#define CLRBUSFREE 0x08
+#define CLRSCSIPERR 0x04
+#define CLRPHASECHG 0x02
+#define CLRREQINIT 0x01
+
+#define SSTAT1 0x0c
+#define SELTO 0x80
+#define ATNTARG 0x40
+#define SCSIRSTI 0x20
+#define PHASEMIS 0x10
+#define BUSFREE 0x08
+#define SCSIPERR 0x04
+#define PHASECHG 0x02
+#define REQINIT 0x01
+
+#define SSTAT2 0x0d
+#define OVERRUN 0x80
+#define SHVALID 0x40
+#define WIDE_RES 0x20
+#define SFCNT 0x1f
+#define EXP_ACTIVE 0x10
+#define CRCVALERR 0x08
+#define CRCENDERR 0x04
+#define CRCREQERR 0x02
+#define DUAL_EDGE_ERROR 0x01
+
+#define SSTAT3 0x0e
+#define SCSICNT 0xf0
+#define OFFCNT 0x0f
+
+#define SCSIID_ULTRA2 0x0f
+#define OID 0x0f
+
+#define SIMODE0 0x10
+#define ENSELDO 0x40
+#define ENSELDI 0x20
+#define ENSELINGO 0x10
+#define ENIOERR 0x08
+#define ENSWRAP 0x08
+#define ENSDONE 0x04
+#define ENSPIORDY 0x02
+#define ENDMADONE 0x01
+
+#define SIMODE1 0x11
+#define ENSELTIMO 0x80
+#define ENATNTARG 0x40
+#define ENSCSIRST 0x20
+#define ENPHASEMIS 0x10
+#define ENBUSFREE 0x08
+#define ENSCSIPERR 0x04
+#define ENPHASECHG 0x02
+#define ENREQINIT 0x01
+
+#define SCSIBUSL 0x12
+
+#define SCSIBUSH 0x13
+
+#define SHADDR 0x14
+
+#define SELTIMER 0x18
+#define STAGE6 0x20
+#define STAGE5 0x10
+#define STAGE4 0x08
+#define STAGE3 0x04
+#define STAGE2 0x02
+#define STAGE1 0x01
+
+#define SELID 0x19
+#define SELID_MASK 0xf0
+#define ONEBIT 0x08
+
+#define SPIOCAP 0x1b
+#define SOFT1 0x80
+#define SOFT0 0x40
+#define SOFTCMDEN 0x20
+#define HAS_BRDCTL 0x10
+#define SEEPROM 0x08
+#define EEPROM 0x04
+#define ROM 0x02
+#define SSPIOCPS 0x01
+
+#define BRDCTL 0x1d
+#define BRDDAT7 0x80
+#define BRDDAT6 0x40
+#define BRDDAT5 0x20
+#define BRDDAT4 0x10
+#define BRDSTB 0x10
+#define BRDCS 0x08
+#define BRDDAT3 0x08
+#define BRDDAT2 0x04
+#define BRDRW 0x04
+#define BRDRW_ULTRA2 0x02
+#define BRDCTL1 0x02
+#define BRDSTB_ULTRA2 0x01
+#define BRDCTL0 0x01
+
+#define SEECTL 0x1e
+#define EXTARBACK 0x80
+#define EXTARBREQ 0x40
+#define SEEMS 0x20
+#define SEERDY 0x10
+#define SEECS 0x08
+#define SEECK 0x04
+#define SEEDO 0x02
+#define SEEDI 0x01
+
+#define SBLKCTL 0x1f
+#define DIAGLEDEN 0x80
+#define DIAGLEDON 0x40
+#define AUTOFLUSHDIS 0x20
+#define ENAB40 0x08
+#define ENAB20 0x04
+#define SELWIDE 0x02
+#define XCVR 0x01
+
+#define SRAM_BASE 0x20
+
+#define TARG_SCSIRATE 0x20
+
+#define ULTRA_ENB 0x30
+
+#define DISC_DSB 0x32
+
+#define MSG_OUT 0x34
+
+#define DMAPARAMS 0x35
+#define PRELOADEN 0x80
+#define WIDEODD 0x40
+#define SCSIEN 0x20
+#define SDMAENACK 0x10
+#define SDMAEN 0x10
+#define HDMAEN 0x08
+#define HDMAENACK 0x08
+#define DIRECTION 0x04
+#define FIFOFLUSH 0x02
+#define FIFORESET 0x01
+
+#define SEQ_FLAGS 0x36
+#define IDENTIFY_SEEN 0x80
+#define SCBPTR_VALID 0x20
+#define DPHASE 0x10
+#define AMTARGET 0x08
+#define WIDE_BUS 0x02
+#define TWIN_BUS 0x01
+
+#define SAVED_TCL 0x37
+
+#define SG_COUNT 0x38
+
+#define SG_NEXT 0x39
+
+#define LASTPHASE 0x3d
+#define P_MESGIN 0xe0
+#define PHASE_MASK 0xe0
+#define P_STATUS 0xc0
+#define P_MESGOUT 0xa0
+#define P_COMMAND 0x80
+#define CDI 0x80
+#define IOI 0x40
+#define P_DATAIN 0x40
+#define MSGI 0x20
+#define P_BUSFREE 0x01
+#define P_DATAOUT 0x00
+
+#define WAITING_SCBH 0x3e
+
+#define DISCONNECTED_SCBH 0x3f
+
+#define FREE_SCBH 0x40
+
+#define HSCB_ADDR 0x41
+
+#define SCBID_ADDR 0x45
+
+#define TMODE_CMDADDR 0x49
+
+#define KERNEL_QINPOS 0x4d
+
+#define QINPOS 0x4e
+
+#define QOUTPOS 0x4f
+
+#define TMODE_CMDADDR_NEXT 0x50
+
+#define ARG_1 0x51
+#define RETURN_1 0x51
+#define SEND_MSG 0x80
+#define SEND_SENSE 0x40
+#define SEND_REJ 0x20
+#define MSGOUT_PHASEMIS 0x10
+
+#define ARG_2 0x52
+#define RETURN_2 0x52
+
+#define LAST_MSG 0x53
+
+#define PREFETCH_CNT 0x54
+
+#define SCSICONF 0x5a
+#define TERM_ENB 0x80
+#define RESET_SCSI 0x40
+#define HWSCSIID 0x0f
+#define HSCSIID 0x07
+
+#define HOSTCONF 0x5d
+
+#define HA_274_BIOSCTRL 0x5f
+#define BIOSMODE 0x30
+#define BIOSDISABLED 0x30
+#define CHANNEL_B_PRIMARY 0x08
+
+#define SEQCTL 0x60
+#define PERRORDIS 0x80
+#define PAUSEDIS 0x40
+#define FAILDIS 0x20
+#define FASTMODE 0x10
+#define BRKADRINTEN 0x08
+#define STEP 0x04
+#define SEQRESET 0x02
+#define LOADRAM 0x01
+
+#define SEQRAM 0x61
+
+#define SEQADDR0 0x62
+
+#define SEQADDR1 0x63
+#define SEQADDR1_MASK 0x01
+
+#define ACCUM 0x64
+
+#define SINDEX 0x65
+
+#define DINDEX 0x66
+
+#define ALLONES 0x69
+
+#define ALLZEROS 0x6a
+
+#define NONE 0x6a
+
+#define FLAGS 0x6b
+#define ZERO 0x02
+#define CARRY 0x01
+
+#define SINDIR 0x6c
+
+#define DINDIR 0x6d
+
+#define FUNCTION1 0x6e
+
+#define STACK 0x6f
+
+#define TARG_OFFSET 0x70
+
+#define BCTL 0x84
+#define ACE 0x08
+#define ENABLE 0x01
+
+#define DSCOMMAND0 0x84
+#define INTSCBRAMSEL 0x08
+#define RAMPS 0x04
+#define USCBSIZE32 0x02
+#define CIOPARCKEN 0x01
+
+#define DSCOMMAND 0x84
+#define CACHETHEN 0x80
+#define DPARCKEN 0x40
+#define MPARCKEN 0x20
+#define EXTREQLCK 0x10
+
+#define BUSTIME 0x85
+#define BOFF 0xf0
+#define BON 0x0f
+
+#define BUSSPD 0x86
+#define DFTHRSH 0xc0
+#define STBOFF 0x38
+#define STBON 0x07
+
+#define DSPCISTATUS 0x86
+#define DFTHRSH_100 0xc0
+
+#define HCNTRL 0x87
+#define POWRDN 0x40
+#define SWINT 0x10
+#define IRQMS 0x08
+#define PAUSE 0x04
+#define INTEN 0x02
+#define CHIPRST 0x01
+#define CHIPRSTACK 0x01
+
+#define HADDR 0x88
+
+#define HCNT 0x8c
+
+#define SCBPTR 0x90
+
+#define INTSTAT 0x91
+#define SEQINT_MASK 0xf1
+#define DATA_OVERRUN 0xe1
+#define MSGIN_PHASEMIS 0xd1
+#define TRACEPOINT2 0xc1
+#define SEQ_SG_FIXUP 0xb1
+#define AWAITING_MSG 0xa1
+#define RESIDUAL 0x81
+#define BAD_STATUS 0x71
+#define REJECT_MSG 0x61
+#define WIDE_RESIDUE 0x51
+#define EXTENDED_MSG 0x41
+#define NO_MATCH 0x31
+#define NO_IDENT 0x21
+#define SEND_REJECT 0x11
+#define INT_PEND 0x0f
+#define BRKADRINT 0x08
+#define SCSIINT 0x04
+#define CMDCMPLT 0x02
+#define BAD_PHASE 0x01
+#define SEQINT 0x01
+
+#define CLRINT 0x92
+#define CLRPARERR 0x10
+#define CLRBRKADRINT 0x08
+#define CLRSCSIINT 0x04
+#define CLRCMDINT 0x02
+#define CLRSEQINT 0x01
+
+#define ERROR 0x92
+#define CIOPARERR 0x80
+#define PCIERRSTAT 0x40
+#define MPARERR 0x20
+#define DPARERR 0x10
+#define SQPARERR 0x08
+#define ILLOPCODE 0x04
+#define DSCTMOUT 0x02
+#define ILLSADDR 0x02
+#define ILLHADDR 0x01
+
+#define DFCNTRL 0x93
+
+#define DFSTATUS 0x94
+#define PRELOAD_AVAIL 0x80
+#define DWORDEMP 0x20
+#define MREQPEND 0x10
+#define HDONE 0x08
+#define DFTHRESH 0x04
+#define FIFOFULL 0x02
+#define FIFOEMP 0x01
+
+#define DFDAT 0x99
+
+#define SCBCNT 0x9a
+#define SCBAUTO 0x80
+#define SCBCNT_MASK 0x1f
+
+#define QINFIFO 0x9b
+
+#define QINCNT 0x9c
+
+#define SCSIDATL_IMG 0x9c
+
+#define QOUTFIFO 0x9d
+
+#define CRCCONTROL1 0x9d
+#define CRCONSEEN 0x80
+#define CRCVALCHKEN 0x40
+#define CRCENDCHKEN 0x20
+#define CRCREQCHKEN 0x10
+#define TARGCRCENDEN 0x08
+#define TARGCRCCNTEN 0x04
+
+#define SCSIPHASE 0x9e
+#define SP_STATUS 0x20
+#define SP_COMMAND 0x10
+#define SP_MSG_IN 0x08
+#define SP_MSG_OUT 0x04
+#define SP_DATA_IN 0x02
+#define SP_DATA_OUT 0x01
+
+#define QOUTCNT 0x9e
+
+#define SFUNCT 0x9f
+#define ALT_MODE 0x80
+
+#define SCB_CONTROL 0xa0
+#define MK_MESSAGE 0x80
+#define DISCENB 0x40
+#define TAG_ENB 0x20
+#define DISCONNECTED 0x04
+#define SCB_TAG_TYPE 0x03
+
+#define SCB_BASE 0xa0
+
+#define SCB_TCL 0xa1
+#define TID 0xf0
+#define SELBUSB 0x08
+#define LID 0x07
+
+#define SCB_TARGET_STATUS 0xa2
+
+#define SCB_SGCOUNT 0xa3
+
+#define SCB_SGPTR 0xa4
+
+#define SCB_RESID_SGCNT 0xa8
+
+#define SCB_RESID_DCNT 0xa9
+
+#define SCB_DATAPTR 0xac
+
+#define SCB_DATACNT 0xb0
+
+#define SCB_CMDPTR 0xb4
+
+#define SCB_CMDLEN 0xb8
+
+#define SCB_TAG 0xb9
+
+#define SCB_NEXT 0xba
+
+#define SCB_PREV 0xbb
+
+#define SCB_BUSYTARGETS 0xbc
+
+#define SEECTL_2840 0xc0
+#define CS_2840 0x04
+#define CK_2840 0x02
+#define DO_2840 0x01
+
+#define STATUS_2840 0xc1
+#define EEPROM_TF 0x80
+#define BIOS_SEL 0x60
+#define ADSEL 0x1e
+#define DI_2840 0x01
+
+#define CCHADDR 0xe0
+
+#define CCHCNT 0xe8
+
+#define CCSGRAM 0xe9
+
+#define CCSGADDR 0xea
+
+#define CCSGCTL 0xeb
+#define CCSGDONE 0x80
+#define CCSGEN 0x08
+#define FLAG 0x02
+#define CCSGRESET 0x01
+
+#define CCSCBRAM 0xec
+
+#define CCSCBADDR 0xed
+
+#define CCSCBCTL 0xee
+#define CCSCBDONE 0x80
+#define ARRDONE 0x40
+#define CCARREN 0x10
+#define CCSCBEN 0x08
+#define CCSCBDIR 0x04
+#define CCSCBRESET 0x01
+
+#define CCSCBCNT 0xef
+
+#define CCSCBPTR 0xf1
+
+#define HNSCB_QOFF 0xf4
+
+#define HESCB_QOFF 0xf5
+
+#define SNSCB_QOFF 0xf6
+
+#define SESCB_QOFF 0xf7
+
+#define SDSCB_QOFF 0xf8
+
+#define QOFF_CTLSTA 0xfa
+#define ESTABLISH_SCB_AVAIL 0x80
+#define SCB_AVAIL 0x40
+#define SNSCB_ROLLOVER 0x20
+#define SDSCB_ROLLOVER 0x10
+#define SESCB_ROLLOVER 0x08
+#define SCB_QSIZE 0x07
+#define SCB_QSIZE_256 0x06
+
+#define DFF_THRSH 0xfb
+#define WR_DFTHRSH 0x70
+#define WR_DFTHRSH_MAX 0x70
+#define WR_DFTHRSH_90 0x60
+#define WR_DFTHRSH_85 0x50
+#define WR_DFTHRSH_75 0x40
+#define WR_DFTHRSH_63 0x30
+#define WR_DFTHRSH_50 0x20
+#define WR_DFTHRSH_25 0x10
+#define RD_DFTHRSH_MAX 0x07
+#define RD_DFTHRSH 0x07
+#define RD_DFTHRSH_90 0x06
+#define RD_DFTHRSH_85 0x05
+#define RD_DFTHRSH_75 0x04
+#define RD_DFTHRSH_63 0x03
+#define RD_DFTHRSH_50 0x02
+#define RD_DFTHRSH_25 0x01
+#define WR_DFTHRSH_MIN 0x00
+#define RD_DFTHRSH_MIN 0x00
+
+#define SG_CACHEPTR 0xfc
+#define SG_USER_DATA 0xfc
+#define LAST_SEG 0x02
+#define LAST_SEG_DONE 0x01
+
+
+#define CMD_GROUP2_BYTE_DELTA 0xfa
+#define MAX_OFFSET_8BIT 0x0f
+#define BUS_16_BIT 0x01
+#define QINFIFO_OFFSET 0x02
+#define CMD_GROUP5_BYTE_DELTA 0x0b
+#define CMD_GROUP_CODE_SHIFT 0x05
+#define MAX_OFFSET_ULTRA2 0x7f
+#define MAX_OFFSET_16BIT 0x08
+#define BUS_8_BIT 0x00
+#define QOUTFIFO_OFFSET 0x01
+#define UNTAGGEDSCB_OFFSET 0x00
+#define CCSGRAM_MAXSEGS 0x10
+#define SCB_LIST_NULL 0xff
+#define SG_SIZEOF 0x08
+#define CMD_GROUP4_BYTE_DELTA 0x04
+#define CMD_GROUP0_BYTE_DELTA 0xfc
+#define HOST_MSG 0xff
+#define BUS_32_BIT 0x02
+#define CCSGADDR_MAX 0x80
+
+
+/* Downloaded Constant Definitions */
+#define TMODE_NUMCMDS 0x00
diff --git a/drivers/scsi/aic7xxx_old/aic7xxx_seq.c b/drivers/scsi/aic7xxx_old/aic7xxx_seq.c
new file mode 100644
index 000000000000..e1bc140e9735
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/aic7xxx_seq.c
@@ -0,0 +1,817 @@
+/*
+ * DO NOT EDIT - This file is automatically generated.
+ */
+static unsigned char seqprog[] = {
+ 0xff, 0x6a, 0x06, 0x08,
+ 0x7f, 0x02, 0x04, 0x08,
+ 0x12, 0x6a, 0x00, 0x00,
+ 0xff, 0x6a, 0xd6, 0x09,
+ 0xff, 0x6a, 0xdc, 0x09,
+ 0x00, 0x65, 0xca, 0x58,
+ 0xf7, 0x01, 0x02, 0x08,
+ 0xff, 0x4e, 0xc8, 0x08,
+ 0xbf, 0x60, 0xc0, 0x08,
+ 0x60, 0x0b, 0x86, 0x68,
+ 0x40, 0x00, 0x0c, 0x68,
+ 0x08, 0x1f, 0x3e, 0x10,
+ 0x60, 0x0b, 0x86, 0x68,
+ 0x40, 0x00, 0x0c, 0x68,
+ 0x08, 0x1f, 0x3e, 0x10,
+ 0xff, 0x3e, 0x48, 0x60,
+ 0x40, 0xfa, 0x10, 0x78,
+ 0xff, 0xf6, 0xd4, 0x08,
+ 0x01, 0x4e, 0x9c, 0x18,
+ 0x40, 0x60, 0xc0, 0x00,
+ 0x00, 0x4d, 0x10, 0x70,
+ 0x01, 0x4e, 0x9c, 0x18,
+ 0xbf, 0x60, 0xc0, 0x08,
+ 0x00, 0x6a, 0x86, 0x5c,
+ 0xff, 0x4e, 0xc8, 0x18,
+ 0x02, 0x6a, 0x70, 0x5b,
+ 0xff, 0x52, 0x20, 0x09,
+ 0x0d, 0x6a, 0x6a, 0x00,
+ 0x00, 0x52, 0xe6, 0x5b,
+ 0x03, 0xb0, 0x52, 0x31,
+ 0xff, 0xb0, 0x52, 0x09,
+ 0xff, 0xb1, 0x54, 0x09,
+ 0xff, 0xb2, 0x56, 0x09,
+ 0xff, 0xa3, 0x50, 0x09,
+ 0xff, 0x3e, 0x74, 0x09,
+ 0xff, 0x90, 0x7c, 0x08,
+ 0xff, 0x3e, 0x20, 0x09,
+ 0x00, 0x65, 0x4e, 0x58,
+ 0x00, 0x65, 0x0c, 0x40,
+ 0xf7, 0x1f, 0xca, 0x08,
+ 0x08, 0xa1, 0xc8, 0x08,
+ 0x00, 0x65, 0xca, 0x00,
+ 0xff, 0x65, 0x3e, 0x08,
+ 0xf0, 0xa1, 0xc8, 0x08,
+ 0x0f, 0x0f, 0x1e, 0x08,
+ 0x00, 0x0f, 0x1e, 0x00,
+ 0xf0, 0xa1, 0xc8, 0x08,
+ 0x0f, 0x05, 0x0a, 0x08,
+ 0x00, 0x05, 0x0a, 0x00,
+ 0xff, 0x6a, 0x0c, 0x08,
+ 0x5a, 0x6a, 0x00, 0x04,
+ 0x12, 0x65, 0x02, 0x00,
+ 0x31, 0x6a, 0xca, 0x00,
+ 0x80, 0x37, 0x6e, 0x68,
+ 0xff, 0x65, 0xca, 0x18,
+ 0xff, 0x37, 0xdc, 0x08,
+ 0xff, 0x6e, 0xc8, 0x08,
+ 0x00, 0x6c, 0x76, 0x78,
+ 0x20, 0x01, 0x02, 0x00,
+ 0x4c, 0x37, 0xc8, 0x28,
+ 0x08, 0x1f, 0x7e, 0x78,
+ 0x08, 0x37, 0x6e, 0x00,
+ 0x08, 0x64, 0xc8, 0x00,
+ 0x70, 0x64, 0xca, 0x18,
+ 0xff, 0x6c, 0x0a, 0x08,
+ 0x20, 0x64, 0xca, 0x18,
+ 0xff, 0x6c, 0x08, 0x0c,
+ 0x40, 0x0b, 0x96, 0x68,
+ 0x20, 0x6a, 0x16, 0x00,
+ 0xf0, 0x19, 0x6e, 0x08,
+ 0x08, 0x6a, 0x18, 0x00,
+ 0x08, 0x11, 0x22, 0x00,
+ 0x08, 0x6a, 0x66, 0x58,
+ 0x08, 0x6a, 0x68, 0x00,
+ 0x00, 0x65, 0xaa, 0x40,
+ 0x12, 0x6a, 0x00, 0x00,
+ 0x40, 0x6a, 0x16, 0x00,
+ 0xff, 0x3e, 0x20, 0x09,
+ 0xff, 0xba, 0x7c, 0x08,
+ 0xff, 0xa1, 0x6e, 0x08,
+ 0x08, 0x6a, 0x18, 0x00,
+ 0x08, 0x11, 0x22, 0x00,
+ 0x08, 0x6a, 0x66, 0x58,
+ 0x80, 0x6a, 0x68, 0x00,
+ 0x80, 0x36, 0x6c, 0x00,
+ 0x00, 0x65, 0xba, 0x5b,
+ 0xff, 0x3d, 0xc8, 0x08,
+ 0xbf, 0x64, 0xe2, 0x78,
+ 0x80, 0x64, 0xc8, 0x71,
+ 0xa0, 0x64, 0xf8, 0x71,
+ 0xc0, 0x64, 0xf0, 0x71,
+ 0xe0, 0x64, 0x38, 0x72,
+ 0x01, 0x6a, 0x22, 0x01,
+ 0x00, 0x65, 0xaa, 0x40,
+ 0xf7, 0x11, 0x22, 0x08,
+ 0x00, 0x65, 0xca, 0x58,
+ 0xff, 0x06, 0xd4, 0x08,
+ 0xf7, 0x01, 0x02, 0x08,
+ 0x09, 0x0c, 0xc4, 0x78,
+ 0x08, 0x0c, 0x0c, 0x68,
+ 0x01, 0x6a, 0x22, 0x01,
+ 0xff, 0x6a, 0x26, 0x09,
+ 0x02, 0x6a, 0x08, 0x30,
+ 0xff, 0x6a, 0x08, 0x08,
+ 0xdf, 0x01, 0x02, 0x08,
+ 0x01, 0x6a, 0x7a, 0x00,
+ 0xff, 0x6a, 0x6c, 0x0c,
+ 0x04, 0x14, 0x10, 0x31,
+ 0x03, 0xa9, 0x18, 0x31,
+ 0x03, 0xa9, 0x10, 0x30,
+ 0x08, 0x6a, 0xcc, 0x00,
+ 0xa9, 0x6a, 0xd0, 0x5b,
+ 0x00, 0x65, 0x02, 0x41,
+ 0xa8, 0x6a, 0x6a, 0x00,
+ 0x79, 0x6a, 0x6a, 0x00,
+ 0x40, 0x3d, 0xea, 0x68,
+ 0x04, 0x35, 0x6a, 0x00,
+ 0x00, 0x65, 0x2a, 0x5b,
+ 0x80, 0x6a, 0xd4, 0x01,
+ 0x10, 0x36, 0xd6, 0x68,
+ 0x10, 0x36, 0x6c, 0x00,
+ 0x07, 0xac, 0x10, 0x31,
+ 0x05, 0xa3, 0x70, 0x30,
+ 0x03, 0x8c, 0x10, 0x30,
+ 0x88, 0x6a, 0xcc, 0x00,
+ 0xac, 0x6a, 0xc8, 0x5b,
+ 0x00, 0x65, 0xc2, 0x5b,
+ 0x38, 0x6a, 0xcc, 0x00,
+ 0xa3, 0x6a, 0xcc, 0x5b,
+ 0xff, 0x38, 0x12, 0x69,
+ 0x80, 0x02, 0x04, 0x00,
+ 0xe7, 0x35, 0x6a, 0x08,
+ 0x03, 0x69, 0x18, 0x31,
+ 0x03, 0x69, 0x10, 0x30,
+ 0xff, 0x6a, 0x10, 0x00,
+ 0xff, 0x6a, 0x12, 0x00,
+ 0xff, 0x6a, 0x14, 0x00,
+ 0x22, 0x38, 0xc8, 0x28,
+ 0x01, 0x38, 0x1c, 0x61,
+ 0x02, 0x64, 0xc8, 0x00,
+ 0x01, 0x38, 0x1c, 0x61,
+ 0xbf, 0x35, 0x6a, 0x08,
+ 0xff, 0x64, 0xf8, 0x09,
+ 0xff, 0x35, 0x26, 0x09,
+ 0x80, 0x02, 0xa4, 0x69,
+ 0x10, 0x0c, 0x7a, 0x69,
+ 0x80, 0x94, 0x22, 0x79,
+ 0x00, 0x35, 0x0a, 0x5b,
+ 0x80, 0x02, 0xa4, 0x69,
+ 0xff, 0x65, 0x94, 0x79,
+ 0x01, 0x38, 0x70, 0x71,
+ 0xff, 0x38, 0x70, 0x18,
+ 0xff, 0x38, 0x94, 0x79,
+ 0x80, 0xea, 0x4a, 0x61,
+ 0xef, 0x38, 0xc8, 0x18,
+ 0x80, 0x6a, 0xc8, 0x00,
+ 0x00, 0x65, 0x3c, 0x49,
+ 0x33, 0x38, 0xc8, 0x28,
+ 0xff, 0x64, 0xd0, 0x09,
+ 0x04, 0x39, 0xc0, 0x31,
+ 0x09, 0x6a, 0xd6, 0x01,
+ 0x80, 0xeb, 0x42, 0x79,
+ 0xf7, 0xeb, 0xd6, 0x09,
+ 0x08, 0xeb, 0x46, 0x69,
+ 0x01, 0x6a, 0xd6, 0x01,
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+ 0xff, 0x40, 0x94, 0x64,
+ 0xff, 0x3f, 0x8c, 0x64,
+ 0xff, 0x6a, 0xca, 0x04,
+ 0xff, 0x3f, 0x20, 0x09,
+ 0x01, 0x6a, 0x6a, 0x00,
+ 0x00, 0xb9, 0xe6, 0x5b,
+ 0xff, 0xba, 0x7e, 0x0c,
+ 0xff, 0x40, 0x20, 0x09,
+ 0xff, 0xba, 0x80, 0x0c,
+ 0xff, 0x3f, 0x74, 0x09,
+ 0xff, 0x90, 0x7e, 0x0c,
+};
+
+static int aic7xxx_patch15_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch15_func(struct aic7xxx_host *p)
+{
+ return ((p->bugs & AHC_BUG_SCBCHAN_UPLOAD) != 0);
+}
+
+static int aic7xxx_patch14_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch14_func(struct aic7xxx_host *p)
+{
+ return ((p->bugs & AHC_BUG_PCI_2_1_RETRY) != 0);
+}
+
+static int aic7xxx_patch13_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch13_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_WIDE) != 0);
+}
+
+static int aic7xxx_patch12_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch12_func(struct aic7xxx_host *p)
+{
+ return ((p->bugs & AHC_BUG_AUTOFLUSH) != 0);
+}
+
+static int aic7xxx_patch11_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch11_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_ULTRA2) == 0);
+}
+
+static int aic7xxx_patch10_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch10_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_CMD_CHAN) == 0);
+}
+
+static int aic7xxx_patch9_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch9_func(struct aic7xxx_host *p)
+{
+ return ((p->chip & AHC_CHIPID_MASK) == AHC_AIC7895);
+}
+
+static int aic7xxx_patch8_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch8_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_ULTRA) != 0);
+}
+
+static int aic7xxx_patch7_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch7_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_ULTRA2) != 0);
+}
+
+static int aic7xxx_patch6_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch6_func(struct aic7xxx_host *p)
+{
+ return ((p->flags & AHC_PAGESCBS) == 0);
+}
+
+static int aic7xxx_patch5_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch5_func(struct aic7xxx_host *p)
+{
+ return ((p->flags & AHC_PAGESCBS) != 0);
+}
+
+static int aic7xxx_patch4_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch4_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_QUEUE_REGS) != 0);
+}
+
+static int aic7xxx_patch3_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch3_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_TWIN) != 0);
+}
+
+static int aic7xxx_patch2_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch2_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_QUEUE_REGS) == 0);
+}
+
+static int aic7xxx_patch1_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch1_func(struct aic7xxx_host *p)
+{
+ return ((p->features & AHC_CMD_CHAN) != 0);
+}
+
+static int aic7xxx_patch0_func(struct aic7xxx_host *p);
+
+static int
+aic7xxx_patch0_func(struct aic7xxx_host *p)
+{
+ return (0);
+}
+
+struct sequencer_patch {
+ int (*patch_func)(struct aic7xxx_host *);
+ unsigned int begin :10,
+ skip_instr :10,
+ skip_patch :12;
+} sequencer_patches[] = {
+ { aic7xxx_patch1_func, 3, 2, 1 },
+ { aic7xxx_patch2_func, 7, 1, 1 },
+ { aic7xxx_patch2_func, 8, 1, 1 },
+ { aic7xxx_patch3_func, 11, 4, 1 },
+ { aic7xxx_patch4_func, 16, 3, 2 },
+ { aic7xxx_patch0_func, 19, 4, 1 },
+ { aic7xxx_patch5_func, 23, 1, 1 },
+ { aic7xxx_patch6_func, 26, 1, 1 },
+ { aic7xxx_patch1_func, 29, 1, 2 },
+ { aic7xxx_patch0_func, 30, 3, 1 },
+ { aic7xxx_patch3_func, 39, 4, 1 },
+ { aic7xxx_patch7_func, 43, 3, 2 },
+ { aic7xxx_patch0_func, 46, 3, 1 },
+ { aic7xxx_patch8_func, 52, 7, 1 },
+ { aic7xxx_patch3_func, 60, 3, 1 },
+ { aic7xxx_patch7_func, 63, 2, 1 },
+ { aic7xxx_patch7_func, 102, 1, 2 },
+ { aic7xxx_patch0_func, 103, 2, 1 },
+ { aic7xxx_patch7_func, 107, 2, 1 },
+ { aic7xxx_patch9_func, 109, 1, 1 },
+ { aic7xxx_patch10_func, 110, 2, 1 },
+ { aic7xxx_patch7_func, 113, 1, 2 },
+ { aic7xxx_patch0_func, 114, 1, 1 },
+ { aic7xxx_patch1_func, 118, 1, 1 },
+ { aic7xxx_patch1_func, 121, 3, 3 },
+ { aic7xxx_patch11_func, 123, 1, 1 },
+ { aic7xxx_patch0_func, 124, 5, 1 },
+ { aic7xxx_patch7_func, 132, 1, 1 },
+ { aic7xxx_patch9_func, 133, 1, 1 },
+ { aic7xxx_patch10_func, 134, 3, 1 },
+ { aic7xxx_patch7_func, 137, 3, 2 },
+ { aic7xxx_patch0_func, 140, 2, 1 },
+ { aic7xxx_patch7_func, 142, 5, 2 },
+ { aic7xxx_patch0_func, 147, 3, 1 },
+ { aic7xxx_patch7_func, 150, 1, 2 },
+ { aic7xxx_patch0_func, 151, 2, 1 },
+ { aic7xxx_patch1_func, 153, 15, 4 },
+ { aic7xxx_patch11_func, 166, 1, 2 },
+ { aic7xxx_patch0_func, 167, 1, 1 },
+ { aic7xxx_patch0_func, 168, 10, 1 },
+ { aic7xxx_patch7_func, 181, 1, 2 },
+ { aic7xxx_patch0_func, 182, 2, 1 },
+ { aic7xxx_patch7_func, 184, 18, 1 },
+ { aic7xxx_patch1_func, 202, 3, 3 },
+ { aic7xxx_patch7_func, 204, 1, 1 },
+ { aic7xxx_patch0_func, 205, 4, 1 },
+ { aic7xxx_patch7_func, 210, 2, 1 },
+ { aic7xxx_patch7_func, 215, 13, 3 },
+ { aic7xxx_patch12_func, 218, 1, 1 },
+ { aic7xxx_patch12_func, 219, 4, 1 },
+ { aic7xxx_patch1_func, 229, 3, 3 },
+ { aic7xxx_patch11_func, 231, 1, 1 },
+ { aic7xxx_patch0_func, 232, 5, 1 },
+ { aic7xxx_patch11_func, 237, 1, 2 },
+ { aic7xxx_patch0_func, 238, 9, 1 },
+ { aic7xxx_patch13_func, 254, 1, 2 },
+ { aic7xxx_patch0_func, 255, 1, 1 },
+ { aic7xxx_patch4_func, 316, 1, 2 },
+ { aic7xxx_patch0_func, 317, 1, 1 },
+ { aic7xxx_patch2_func, 320, 1, 1 },
+ { aic7xxx_patch1_func, 330, 3, 2 },
+ { aic7xxx_patch0_func, 333, 5, 1 },
+ { aic7xxx_patch13_func, 341, 1, 2 },
+ { aic7xxx_patch0_func, 342, 1, 1 },
+ { aic7xxx_patch5_func, 347, 1, 1 },
+ { aic7xxx_patch11_func, 389, 15, 2 },
+ { aic7xxx_patch14_func, 402, 1, 1 },
+ { aic7xxx_patch1_func, 441, 7, 2 },
+ { aic7xxx_patch0_func, 448, 8, 1 },
+ { aic7xxx_patch1_func, 457, 4, 2 },
+ { aic7xxx_patch0_func, 461, 6, 1 },
+ { aic7xxx_patch1_func, 467, 4, 2 },
+ { aic7xxx_patch0_func, 471, 3, 1 },
+ { aic7xxx_patch10_func, 481, 10, 1 },
+ { aic7xxx_patch1_func, 500, 22, 5 },
+ { aic7xxx_patch11_func, 508, 4, 1 },
+ { aic7xxx_patch7_func, 512, 7, 3 },
+ { aic7xxx_patch15_func, 512, 5, 2 },
+ { aic7xxx_patch0_func, 517, 2, 1 },
+ { aic7xxx_patch10_func, 522, 50, 3 },
+ { aic7xxx_patch14_func, 543, 17, 2 },
+ { aic7xxx_patch0_func, 560, 4, 1 },
+ { aic7xxx_patch10_func, 572, 4, 1 },
+ { aic7xxx_patch5_func, 576, 2, 1 },
+ { aic7xxx_patch5_func, 579, 9, 1 },
+
+};
diff --git a/drivers/scsi/aic7xxx_old/scsi_message.h b/drivers/scsi/aic7xxx_old/scsi_message.h
new file mode 100644
index 000000000000..a79f89c65173
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/scsi_message.h
@@ -0,0 +1,49 @@
+/* Messages (1 byte) */ /* I/T (M)andatory or (O)ptional */
+#define MSG_CMDCOMPLETE 0x00 /* M/M */
+#define MSG_EXTENDED 0x01 /* O/O */
+#define MSG_SAVEDATAPOINTER 0x02 /* O/O */
+#define MSG_RESTOREPOINTERS 0x03 /* O/O */
+#define MSG_DISCONNECT 0x04 /* O/O */
+#define MSG_INITIATOR_DET_ERR 0x05 /* M/M */
+#define MSG_ABORT 0x06 /* O/M */
+#define MSG_MESSAGE_REJECT 0x07 /* M/M */
+#define MSG_NOOP 0x08 /* M/M */
+#define MSG_PARITY_ERROR 0x09 /* M/M */
+#define MSG_LINK_CMD_COMPLETE 0x0a /* O/O */
+#define MSG_LINK_CMD_COMPLETEF 0x0b /* O/O */
+#define MSG_BUS_DEV_RESET 0x0c /* O/M */
+#define MSG_ABORT_TAG 0x0d /* O/O */
+#define MSG_CLEAR_QUEUE 0x0e /* O/O */
+#define MSG_INIT_RECOVERY 0x0f /* O/O */
+#define MSG_REL_RECOVERY 0x10 /* O/O */
+#define MSG_TERM_IO_PROC 0x11 /* O/O */
+
+/* Messages (2 byte) */
+#define MSG_SIMPLE_Q_TAG 0x20 /* O/O */
+#define MSG_HEAD_OF_Q_TAG 0x21 /* O/O */
+#define MSG_ORDERED_Q_TAG 0x22 /* O/O */
+#define MSG_IGN_WIDE_RESIDUE 0x23 /* O/O */
+
+/* Identify message */ /* M/M */
+#define MSG_IDENTIFYFLAG 0x80
+#define MSG_IDENTIFY_DISCFLAG 0x40
+#define MSG_IDENTIFY(lun, disc) (((disc) ? 0xc0 : MSG_IDENTIFYFLAG) | (lun))
+#define MSG_ISIDENTIFY(m) ((m) & MSG_IDENTIFYFLAG)
+
+/* Extended messages (opcode and length) */
+#define MSG_EXT_SDTR 0x01
+#define MSG_EXT_SDTR_LEN 0x03
+
+#define MSG_EXT_WDTR 0x03
+#define MSG_EXT_WDTR_LEN 0x02
+#define MSG_EXT_WDTR_BUS_8_BIT 0x00
+#define MSG_EXT_WDTR_BUS_16_BIT 0x01
+#define MSG_EXT_WDTR_BUS_32_BIT 0x02
+
+#define MSG_EXT_PPR 0x04
+#define MSG_EXT_PPR_LEN 0x06
+#define MSG_EXT_PPR_OPTION_ST 0x00
+#define MSG_EXT_PPR_OPTION_DT_CRC 0x02
+#define MSG_EXT_PPR_OPTION_DT_UNITS 0x03
+#define MSG_EXT_PPR_OPTION_DT_CRC_QUICK 0x04
+#define MSG_EXT_PPR_OPTION_DT_UNITS_QUICK 0x05
diff --git a/drivers/scsi/aic7xxx_old/sequencer.h b/drivers/scsi/aic7xxx_old/sequencer.h
new file mode 100644
index 000000000000..ee66855222b1
--- /dev/null
+++ b/drivers/scsi/aic7xxx_old/sequencer.h
@@ -0,0 +1,135 @@
+/*
+ * Instruction formats for the sequencer program downloaded to
+ * Aic7xxx SCSI host adapters
+ *
+ * Copyright (c) 1997, 1998 Justin T. Gibbs.
+ * 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, immediately at the beginning of the file.
+ * 2. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * Where this Software is combined with software released under the terms of
+ * the GNU General Public License ("GPL") and the terms of the GPL would require the
+ * combined work to also be released under the terms of the GPL, the terms
+ * and conditions of this License will apply in addition to those of the
+ * GPL with the exception of any terms or conditions of this License that
+ * conflict with, or are expressly prohibited by, the GPL.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
+ *
+ * $Id: sequencer.h,v 1.3 1997/09/27 19:37:31 gibbs Exp $
+ */
+
+#ifdef __LITTLE_ENDIAN_BITFIELD
+struct ins_format1 {
+ unsigned int
+ immediate : 8,
+ source : 9,
+ destination : 9,
+ ret : 1,
+ opcode : 4,
+ parity : 1;
+};
+
+struct ins_format2 {
+ unsigned int
+ shift_control : 8,
+ source : 9,
+ destination : 9,
+ ret : 1,
+ opcode : 4,
+ parity : 1;
+};
+
+struct ins_format3 {
+ unsigned int
+ immediate : 8,
+ source : 9,
+ address : 10,
+ opcode : 4,
+ parity : 1;
+};
+#elif defined(__BIG_ENDIAN_BITFIELD)
+struct ins_format1 {
+ unsigned int
+ parity : 1,
+ opcode : 4,
+ ret : 1,
+ destination : 9,
+ source : 9,
+ immediate : 8;
+};
+
+struct ins_format2 {
+ unsigned int
+ parity : 1,
+ opcode : 4,
+ ret : 1,
+ destination : 9,
+ source : 9,
+ shift_control : 8;
+};
+
+struct ins_format3 {
+ unsigned int
+ parity : 1,
+ opcode : 4,
+ address : 10,
+ source : 9,
+ immediate : 8;
+};
+#endif
+
+union ins_formats {
+ struct ins_format1 format1;
+ struct ins_format2 format2;
+ struct ins_format3 format3;
+ unsigned char bytes[4];
+ unsigned int integer;
+};
+struct instruction {
+ union ins_formats format;
+ unsigned int srcline;
+ struct symbol *patch_label;
+ struct {
+ struct instruction *stqe_next;
+ } links;
+};
+
+#define AIC_OP_OR 0x0
+#define AIC_OP_AND 0x1
+#define AIC_OP_XOR 0x2
+#define AIC_OP_ADD 0x3
+#define AIC_OP_ADC 0x4
+#define AIC_OP_ROL 0x5
+#define AIC_OP_BMOV 0x6
+
+#define AIC_OP_JMP 0x8
+#define AIC_OP_JC 0x9
+#define AIC_OP_JNC 0xa
+#define AIC_OP_CALL 0xb
+#define AIC_OP_JNE 0xc
+#define AIC_OP_JNZ 0xd
+#define AIC_OP_JE 0xe
+#define AIC_OP_JZ 0xf
+
+/* Pseudo Ops */
+#define AIC_OP_SHL 0x10
+#define AIC_OP_SHR 0x20
+#define AIC_OP_ROR 0x30