aic7xxx.reg

linux-2.6.15.6

 * read the serial EEPROM.
 */
register SEECTL {
	address			0x01e
	field	EXTARBACK	0x80
	field	EXTARBREQ	0x40
	field	SEEMS		0x20
	field	SEERDY		0x10
	field	SEECS		0x08
	field	SEECK		0x04
	field	SEEDO		0x02
	field	SEEDI		0x01
}
/*
 * SCSI Block Control (p. 3-32)
 * Controls Bus type and channel selection.  In a twin channel configuration
 * addresses 0x00-0x1e are gated to the appropriate channel based on this
 * register.  SELWIDE allows for the coexistence of 8bit and 16bit devices
 * on a wide bus.
 */
register SBLKCTL {
	address			0x01f
	access_mode RW
	field	DIAGLEDEN	0x80	/* Aic78X0 only */
	field	DIAGLEDON	0x40	/* Aic78X0 only */
	field	AUTOFLUSHDIS	0x20
	field	SELBUSB		0x08
	field	ENAB40		0x08	/* LVD transceiver active */
	field	ENAB20		0x04	/* SE/HVD transceiver active */
	field	SELWIDE		0x02
	field	XCVR		0x01	/* External transceiver active */
}

/*
 * Sequencer Control (p. 3-33)
 * Error detection mode and speed configuration
 */
register SEQCTL {
	address			0x060
	access_mode RW
	field	PERRORDIS	0x80
	field	PAUSEDIS	0x40
	field	FAILDIS		0x20
	field	FASTMODE	0x10
	field	BRKADRINTEN	0x08
	field	STEP		0x04
	field	SEQRESET	0x02
	field	LOADRAM		0x01
}

/*
 * Sequencer RAM Data (p. 3-34)
 * Single byte window into the Scratch Ram area starting at the address
 * specified by SEQADDR0 and SEQADDR1.  To write a full word, simply write
 * four bytes in succession.  The SEQADDRs will increment after the most
 * significant byte is written
 */
register SEQRAM {
	address			0x061
	access_mode RW
}

/*
 * Sequencer Address Registers (p. 3-35)
 * Only the first bit of SEQADDR1 holds addressing information
 */
register SEQADDR0 {
	address			0x062
	access_mode RW
}

register SEQADDR1 {
	address			0x063
	access_mode RW
	mask	SEQADDR1_MASK	0x01
}

/*
 * Accumulator
 * We cheat by passing arguments in the Accumulator up to the kernel driver
 */
register ACCUM {
	address			0x064
	access_mode RW
	accumulator
}

register SINDEX	{
	address			0x065
	access_mode RW
	sindex
}

register DINDEX {
	address			0x066
	access_mode RW
}

register ALLONES {
	address			0x069
	access_mode RO
	allones
}

register ALLZEROS {
	address			0x06a
	access_mode RO
	allzeros
}

register NONE {
	address			0x06a
	access_mode WO
	none
}

register FLAGS {
	address			0x06b
	access_mode RO
	field	ZERO		0x02
	field	CARRY		0x01
}

register SINDIR	{
	address			0x06c
	access_mode RO
}

register DINDIR	 {
	address			0x06d
	access_mode WO
}

register FUNCTION1 {
	address			0x06e
	access_mode RW
}

register STACK {
	address			0x06f
	access_mode RO
}

const	STACK_SIZE	4

/*
 * Board Control (p. 3-43)
 */
register BCTL {
	address			0x084
	access_mode RW
	field	ACE		0x08
	field	ENABLE		0x01
}

/*
 * On the aic78X0 chips, Board Control is replaced by the DSCommand
 * register (p. 4-64)
 */
register DSCOMMAND0 {
	address			0x084
	access_mode RW
	field	CACHETHEN	0x80	/* Cache Threshold enable */
	field	DPARCKEN	0x40	/* Data Parity Check Enable */
	field	MPARCKEN	0x20	/* Memory Parity Check Enable */
	field	EXTREQLCK	0x10	/* External Request Lock */
	/* aic7890/91/96/97 only */
	field	INTSCBRAMSEL	0x08	/* Internal SCB RAM Select */
	field	RAMPS		0x04	/* External SCB RAM Present */
	field	USCBSIZE32	0x02	/* Use 32byte SCB Page Size */
	field	CIOPARCKEN	0x01	/* Internal bus parity error enable */
}

register DSCOMMAND1 {
	address			0x085
	access_mode RW
	mask	DSLATT		0xfc	/* PCI latency timer (non-ultra2) */
	field	HADDLDSEL1	0x02	/* Host Address Load Select Bits */
	field	HADDLDSEL0	0x01
}

/*
 * Bus On/Off Time (p. 3-44) aic7770 only
 */
register BUSTIME {
	address			0x085
	access_mode RW
	mask	BOFF		0xf0
	mask	BON		0x0f
}

/*
 * Bus Speed (p. 3-45) aic7770 only
 */
register BUSSPD {
	address			0x086
	access_mode RW
	mask	DFTHRSH		0xc0
	mask	STBOFF		0x38
	mask	STBON		0x07
	mask	DFTHRSH_100	0xc0
	mask	DFTHRSH_75	0x80
}

/* aic7850/55/60/70/80/95 only */
register DSPCISTATUS {
	address			0x086
	mask	DFTHRSH_100	0xc0
}

/* aic7890/91/96/97 only */
register HS_MAILBOX {
	address			0x086
	mask	HOST_MAILBOX	0xF0
	mask	SEQ_MAILBOX	0x0F
	mask	HOST_TQINPOS	0x80	/* Boundary at either 0 or 128 */
}

const	HOST_MAILBOX_SHIFT	4
const	SEQ_MAILBOX_SHIFT	0

/*
 * Host Control (p. 3-47) R/W
 * Overall host control of the device.
 */
register HCNTRL {
	address			0x087
	access_mode RW
	field	POWRDN		0x40
	field	SWINT		0x10
	field	IRQMS		0x08
	field	PAUSE		0x04
	field	INTEN		0x02
	field	CHIPRST		0x01
	field	CHIPRSTACK	0x01
}

/*
 * Host Address (p. 3-48)
 * This register contains the address of the byte about
 * to be transferred across the host bus.
 */
register HADDR {
	address			0x088
	size	4
	access_mode RW
}

register HCNT {
	address			0x08c
	size	3
	access_mode RW
}

/*
 * SCB Pointer (p. 3-49)
 * Gate one of the SCBs into the SCBARRAY window.
 */
register SCBPTR {
	address			0x090
	access_mode RW
}

/*
 * Interrupt Status (p. 3-50)
 * Status for system interrupts
 */
register INTSTAT {
	address			0x091
	access_mode RW
	field	BRKADRINT 0x08
	field	SCSIINT	  0x04
	field	CMDCMPLT  0x02
	field	SEQINT    0x01
	mask	BAD_PHASE	SEQINT		/* unknown scsi bus phase */
	mask	SEND_REJECT	0x10|SEQINT	/* sending a message reject */
	mask	PROTO_VIOLATION	0x20|SEQINT	/* SCSI protocol violation */ 
	mask	NO_MATCH	0x30|SEQINT	/* no cmd match for reconnect */
	mask	IGN_WIDE_RES	0x40|SEQINT	/* Complex IGN Wide Res Msg */
	mask	PDATA_REINIT	0x50|SEQINT	/*
						 * Returned to data phase
						 * that requires data
						 * transfer pointers to be
						 * recalculated from the
						 * transfer residual.
						 */
	mask	HOST_MSG_LOOP	0x60|SEQINT	/*
						 * The bus is ready for the
						 * host to perform another
						 * message transaction.  This
						 * mechanism is used for things
						 * like sync/wide negotiation
						 * that require a kernel based
						 * message state engine.
						 */
	mask	BAD_STATUS	0x70|SEQINT	/* Bad status from target */
	mask	PERR_DETECTED	0x80|SEQINT	/*
						 * Either the phase_lock
						 * or inb_next routine has
						 * noticed a parity error.
						 */
	mask	DATA_OVERRUN	0x90|SEQINT	/*
						 * Target attempted to write
						 * beyond the bounds of its
						 * command.
						 */
	mask	MKMSG_FAILED	0xa0|SEQINT	/*
						 * Target completed command
						 * without honoring our ATN
						 * request to issue a message. 
						 */
	mask	MISSED_BUSFREE	0xb0|SEQINT	/*
						 * The sequencer never saw
						 * the bus go free after
						 * either a command complete
						 * or disconnect message.
						 */
	mask	SCB_MISMATCH	0xc0|SEQINT	/*
						 * Downloaded SCB's tag does
						 * not match the entry we
						 * intended to download.
						 */
	mask	NO_FREE_SCB	0xd0|SEQINT	/*
						 * get_free_or_disc_scb failed.
						 */
	mask	OUT_OF_RANGE	0xe0|SEQINT

	mask	SEQINT_MASK	0xf0|SEQINT	/* SEQINT Status Codes */
	mask	INT_PEND  (BRKADRINT|SEQINT|SCSIINT|CMDCMPLT)
}

/*
 * Hard Error (p. 3-53)
 * Reporting of catastrophic errors.  You usually cannot recover from
 * these without a full board reset.
 */
register ERROR {
	address			0x092
	access_mode RO
	field	CIOPARERR	0x80	/* Ultra2 only */
	field	PCIERRSTAT	0x40	/* PCI only */
	field	MPARERR		0x20	/* PCI only */
	field	DPARERR		0x10	/* PCI only */
	field	SQPARERR	0x08
	field	ILLOPCODE	0x04
	field	ILLSADDR	0x02
	field	ILLHADDR	0x01
}

/*
 * Clear Interrupt Status (p. 3-52)
 */
register CLRINT {
	address			0x092
	access_mode WO
	field	CLRPARERR	0x10	/* PCI only */
	field	CLRBRKADRINT	0x08
	field	CLRSCSIINT      0x04
	field	CLRCMDINT 	0x02
	field	CLRSEQINT 	0x01
}

register DFCNTRL {
	address			0x093
	access_mode RW
	field	PRELOADEN	0x80	/* aic7890 only */
	field	WIDEODD		0x40
	field	SCSIEN		0x20
	field	SDMAEN		0x10
	field	SDMAENACK	0x10
	field	HDMAEN		0x08
	field	HDMAENACK	0x08
	field	DIRECTION	0x04
	field	FIFOFLUSH	0x02
	field	FIFORESET	0x01
}

register DFSTATUS {
	address			0x094
	access_mode RO
	field	PRELOAD_AVAIL	0x80
	field	DFCACHETH	0x40
	field	FIFOQWDEMP	0x20
	field	MREQPEND	0x10
	field	HDONE		0x08
	field	DFTHRESH	0x04
	field	FIFOFULL	0x02
	field	FIFOEMP		0x01
}

register DFWADDR {
	address			0x95
	access_mode RW
}

register DFRADDR {
	address			0x97
	access_mode RW
}

register DFDAT {
	address			0x099
	access_mode RW
}

/*
 * SCB Auto Increment (p. 3-59)
 * Byte offset into the SCB Array and an optional bit to allow auto
 * incrementing of the address during download and upload operations
 */
register SCBCNT {
	address			0x09a
	access_mode RW
	field	SCBAUTO		0x80
	mask	SCBCNT_MASK	0x1f
}

/*
 * Queue In FIFO (p. 3-60)
 * Input queue for queued SCBs (commands that the seqencer has yet to start)
 */
register QINFIFO {
	address			0x09b
	access_mode RW
}

/*
 * Queue In Count (p. 3-60)
 * Number of queued SCBs
 */
register QINCNT	{
	address			0x09c
	access_mode RO
}

/*
 * Queue Out FIFO (p. 3-61)
 * Queue of SCBs that have completed and await the host
 */
register QOUTFIFO {
	address			0x09d
	access_mode WO
}

register CRCCONTROL1 {
	address			0x09d
	access_mode RW
	field	CRCONSEEN		0x80
	field	CRCVALCHKEN		0x40
	field	CRCENDCHKEN		0x20
	field	CRCREQCHKEN		0x10
	field	TARGCRCENDEN		0x08
	field	TARGCRCCNTEN		0x04
}


/*
 * Queue Out Count (p. 3-61)
 * Number of queued SCBs in the Out FIFO
 */
register QOUTCNT {
	address			0x09e
	access_mode RO
}

register SCSIPHASE {
	address			0x09e
	access_mode RO
	field	STATUS_PHASE	0x20
	field	COMMAND_PHASE	0x10
	field	MSG_IN_PHASE	0x08
	field	MSG_OUT_PHASE	0x04
	field	DATA_IN_PHASE	0x02
	field	DATA_OUT_PHASE	0x01
	mask	DATA_PHASE_MASK	0x03
}

/*
 * Special Function
 */
register SFUNCT {
	address			0x09f
	access_mode RW
	field	ALT_MODE	0x80
}

/*
 * SCB Definition (p. 5-4)
 */
scb {
	address		0x0a0
	size		64

	SCB_CDB_PTR {
		size	4
		alias	SCB_RESIDUAL_DATACNT
		alias	SCB_CDB_STORE
	}
	SCB_RESIDUAL_SGPTR {
		size	4
	}
	SCB_SCSI_STATUS {
		size	1
	}
	SCB_TARGET_PHASES {
		size	1
	}
	SCB_TARGET_DATA_DIR {
		size	1
	}
	SCB_TARGET_ITAG {
		size	1
	}
	SCB_DATAPTR {
		size	4
	}
	SCB_DATACNT {
		/*
		 * The last byte is really the high address bits for
		 * the data address.
		 */
		size	4
		field	SG_LAST_SEG		0x80	/* In the fourth byte */
		mask	SG_HIGH_ADDR_BITS	0x7F	/* In the fourth byte */
	}
	SCB_SGPTR {
		size	4
		field	SG_RESID_VALID	0x04	/* In the first byte */
		field	SG_FULL_RESID	0x02	/* In the first byte */
		field	SG_LIST_NULL	0x01	/* In the first byte */
	}
	SCB_CONTROL {