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Diffstat (limited to 'drivers/scsi/aic7xxx_old/aic7xxx.reg')
| -rw-r--r-- | drivers/scsi/aic7xxx_old/aic7xxx.reg | 1401 |
1 files changed, 1401 insertions, 0 deletions
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 |