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|
/**************************************************************************
**
** $Id: ncrreg.h,v 2.3 94/10/09 21:10:34 wolf Oct11 $
**
** Device driver for the NCR 53C810 PCI-SCSI-Controller.
**
** 386bsd / FreeBSD / NetBSD
**
**-------------------------------------------------------------------------
**
** Written for 386bsd and FreeBSD by
** wolf@dentaro.gun.de Wolfgang Stanglmeier
** se@mi.Uni-Koeln.de Stefan Esser
**
** Ported to NetBSD by
** mycroft@gnu.ai.mit.edu
**
**-------------------------------------------------------------------------
**
** Copyright (c) 1994 Wolfgang Stanglmeier. 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.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
**
***************************************************************************
*/
#ifndef __NCR_REG_H__
#define __NCR_REG_H__
/*-----------------------------------------------------------------
**
** The ncr 53c810 register structure.
**
**-----------------------------------------------------------------
*/
struct ncr_reg {
/*00*/ u_char nc_scntl0; /* full arb., ena parity, par->ATN */
/*01*/ u_char nc_scntl1; /* no reset */
#define ISCON 0x10 /* connected to scsi */
#define CRST 0x08 /* force reset */
/*02*/ u_char nc_scntl2; /* no disconnect expected */
#define SDU 0x80 /* cmd: disconnect will raise error */
#define CHM 0x40 /* sta: chained mode */
#define WSS 0x08 /* sta: wide scsi send [W]*/
#define WSR 0x01 /* sta: wide scsi received [W]*/
/*03*/ u_char nc_scntl3; /* cnf system clock dependent */
#define EWS 0x08 /* cmd: enable wide scsi [W]*/
/*04*/ u_char nc_scid; /* cnf host adapter scsi address */
#define RRE 0x40 /* r/w:e enable response to resel. */
#define SRE 0x20 /* r/w:e enable response to select */
/*05*/ u_char nc_sxfer; /* ### Sync speed and count */
/*06*/ u_char nc_sdid; /* ### Destination-ID */
/*07*/ u_char nc_gpreg; /* ??? IO-Pins */
/*08*/ u_char nc_sfbr; /* ### First byte in phase */
/*09*/ u_char nc_socl;
#define CREQ 0x80 /* r/w: SCSI-REQ */
#define CACK 0x40 /* r/w: SCSI-ACK */
#define CBSY 0x20 /* r/w: SCSI-BSY */
#define CSEL 0x10 /* r/w: SCSI-SEL */
#define CATN 0x08 /* r/w: SCSI-ATN */
#define CMSG 0x04 /* r/w: SCSI-MSG */
#define CC_D 0x02 /* r/w: SCSI-C_D */
#define CI_O 0x01 /* r/w: SCSI-I_O */
/*0a*/ u_char nc_ssid;
/*0b*/ u_char nc_sbcl;
/*0c*/ u_char nc_dstat;
#define DFE 0x80 /* sta: dma fifo empty */
#define MDPE 0x40 /* int: master data parity error */
#define BF 0x20 /* int: script: bus fault */
#define ABRT 0x10 /* int: script: command aborted */
#define SSI 0x08 /* int: script: single step */
#define SIR 0x04 /* int: script: interrupt instruct. */
#define IID 0x01 /* int: script: illegal instruct. */
/*0d*/ u_char nc_sstat0;
#define ILF 0x80 /* sta: data in SIDL register lsb */
#define ORF 0x40 /* sta: data in SODR register lsb */
#define OLF 0x20 /* sta: data in SODL register lsb */
#define AIP 0x10 /* sta: arbitration in progress */
#define LOA 0x08 /* sta: arbitration lost */
#define WOA 0x04 /* sta: arbitration won */
#define IRST 0x02 /* sta: scsi reset signal */
#define SDP 0x01 /* sta: scsi parity signal */
/*0e*/ u_char nc_sstat1;
#define FF3210 0xf0 /* sta: bytes in the scsi fifo */
/*0f*/ u_char nc_sstat2;
#define ILF1 0x80 /* sta: data in SIDL register msb[W]*/
#define ORF1 0x40 /* sta: data in SODR register msb[W]*/
#define OLF1 0x20 /* sta: data in SODL register msb[W]*/
/*10*/ u_long nc_dsa; /* --> Base page */
/*14*/ u_char nc_istat; /* --> Main Command and status */
#define CABRT 0x80 /* cmd: abort current operation */
#define SRST 0x40 /* mod: reset chip */
#define SIGP 0x20 /* r/w: message from host to ncr */
#define SEM 0x10 /* r/w: message between host + ncr */
#define CON 0x08 /* sta: connected to scsi */
#define INTF 0x04 /* sta: int on the fly (reset by wr)*/
#define SIP 0x02 /* sta: scsi-interrupt */
#define DIP 0x01 /* sta: host/script interrupt */
/*15*/ u_char nc_15_;
/*16*/ u_char nc_16_;
/*17*/ u_char nc_17_;
/*18*/ u_char nc_ctest0;
/*19*/ u_char nc_ctest1;
/*1a*/ u_char nc_ctest2;
#define CSIGP 0x40
/*1b*/ u_char nc_ctest3;
#define CLF 0x04 /* clear scsi fifo */
/*1c*/ u_long nc_temp; /* ### Temporary stack */
/*20*/ u_char nc_dfifo;
/*21*/ u_char nc_ctest4;
/*22*/ u_char nc_ctest5;
/*23*/ u_char nc_ctest6;
/*24*/ u_long nc_dbc; /* ### Byte count and command */
/*28*/ u_long nc_dnad; /* ### Next command register */
/*2c*/ u_long nc_dsp; /* --> Script Pointer */
/*30*/ u_long nc_dsps; /* --> Script pointer save/opcode#2 */
/*34*/ u_long nc_scratcha; /* ??? Temporary register a */
/*38*/ u_char nc_dmode;
/*39*/ u_char nc_dien;
/*3a*/ u_char nc_dwt;
/*3b*/ u_char nc_dcntl; /* --> Script execution control */
#define SSM 0x10 /* mod: single step mode */
#define STD 0x04 /* cmd: start dma mode */
#define NOCOM 0x01 /* cmd: protect sfbr while reselect */
/*3c*/ u_long nc_adder;
/*40*/ u_short nc_sien; /* -->: interrupt enable */
/*42*/ u_short nc_sist; /* <--: interrupt status */
#define STO 0x0400/* sta: timeout (select) */
#define GEN 0x0200/* sta: timeout (general) */
#define HTH 0x0100/* sta: timeout (handshake) */
#define MA 0x80 /* sta: phase mismatch */
#define CMP 0x40 /* sta: arbitration complete */
#define SEL 0x20 /* sta: selected by another device */
#define RSL 0x10 /* sta: reselected by another device*/
#define SGE 0x08 /* sta: gross error (over/underflow)*/
#define UDC 0x04 /* sta: unexpected disconnect */
#define RST 0x02 /* sta: scsi bus reset detected */
#define PAR 0x01 /* sta: scsi parity error */
/*44*/ u_char nc_slpar;
/*45*/ u_char nc_swide;
/*46*/ u_char nc_macntl;
/*47*/ u_char nc_gpcntl;
/*48*/ u_char nc_stime0; /* cmd: timeout for select&handshake*/
/*49*/ u_char nc_stime1; /* cmd: timeout user defined */
/*4a*/ u_short nc_respid; /* sta: Reselect-IDs */
/*4c*/ u_char nc_stest0;
/*4d*/ u_char nc_stest1;
/*4e*/ u_char nc_stest2;
#define ROF 0x40 /* reset scsi offset (after gross error!) */
#define EXT 0x02 /* extended filtering */
/*4f*/ u_char nc_stest3;
#define TE 0x80 /* c: tolerAnt enable */
#define CSF 0x02 /* c: clear scsi fifo */
/*50*/ u_short nc_sidl; /* Lowlevel: latched from scsi data */
/*52*/ u_short nc_52_;
/*54*/ u_short nc_sodl; /* Lowlevel: data out to scsi data */
/*56*/ u_short nc_56_;
/*58*/ u_short nc_sbdl; /* Lowlevel: data from scsi data */
/*5a*/ u_short nc_5a_;
/*5c*/ u_char nc_scr0; /* Working register B */
/*5d*/ u_char nc_scr1; /* */
/*5e*/ u_char nc_scr2; /* */
/*5f*/ u_char nc_scr3; /* */
/*60*/
};
/*-----------------------------------------------------------
**
** Utility macros for the script.
**
**-----------------------------------------------------------
*/
#define REGJ(p,r) (offsetof(struct ncr_reg, p ## r))
#define REG(r) REGJ (nc_, r)
#ifndef TARGET_MODE
#define TARGET_MODE 0
#endif
typedef unsigned long ncrcmd;
/*-----------------------------------------------------------
**
** SCSI phases
**
**-----------------------------------------------------------
*/
#define SCR_DATA_OUT 0x00000000
#define SCR_DATA_IN 0x01000000
#define SCR_COMMAND 0x02000000
#define SCR_STATUS 0x03000000
#define SCR_ILG_OUT 0x04000000
#define SCR_ILG_IN 0x05000000
#define SCR_MSG_OUT 0x06000000
#define SCR_MSG_IN 0x07000000
/*-----------------------------------------------------------
**
** Data transfer via SCSI.
**
**-----------------------------------------------------------
**
** MOVE_ABS (LEN)
** <<start address>>
**
** MOVE_IND (LEN)
** <<dnad_offset>>
**
** MOVE_TBL
** <<dnad_offset>>
**
**-----------------------------------------------------------
*/
#define SCR_MOVE_ABS(l) ((0x08000000 ^ (TARGET_MODE << 1ul)) | (l))
#define SCR_MOVE_IND(l) ((0x28000000 ^ (TARGET_MODE << 1ul)) | (l))
#define SCR_MOVE_TBL (0x18000000 ^ (TARGET_MODE << 1ul))
struct scr_tblmove {
u_long size;
u_long addr;
};
/*-----------------------------------------------------------
**
** Selection
**
**-----------------------------------------------------------
**
** SEL_ABS | SCR_ID (0..7) [ | REL_JMP]
** <<alternate_address>>
**
** SEL_TBL | << dnad_offset>> [ | REL_JMP]
** <<alternate_address>>
**
**-----------------------------------------------------------
*/
#define SCR_SEL_ABS 0x40000000
#define SCR_SEL_ABS_ATN 0x41000000
#define SCR_SEL_TBL 0x42000000
#define SCR_SEL_TBL_ATN 0x43000000
struct scr_tblsel {
u_char sel_0;
u_char sel_sxfer;
u_char sel_id;
u_char sel_scntl3;
};
#define SCR_JMP_REL 0x04000000
#define SCR_ID(id) (((u_long)(id)) << 16)
/*-----------------------------------------------------------
**
** Waiting for Disconnect or Reselect
**
**-----------------------------------------------------------
**
** WAIT_DISC
** dummy: <<alternate_address>>
**
** WAIT_RESEL
** <<alternate_address>>
**
**-----------------------------------------------------------
*/
#define SCR_WAIT_DISC 0x48000000
#define SCR_WAIT_RESEL 0x50000000
/*-----------------------------------------------------------
**
** Bit Set / Reset
**
**-----------------------------------------------------------
**
** SET (flags {|.. })
**
** CLR (flags {|.. })
**
**-----------------------------------------------------------
*/
#define SCR_SET(f) (0x58000000 | (f))
#define SCR_CLR(f) (0x60000000 | (f))
#define SCR_CARRY 0x00000400
#define SCR_TRG 0x00000200
#define SCR_ACK 0x00000040
#define SCR_ATN 0x00000008
/*-----------------------------------------------------------
**
** Memory to memory move
**
**-----------------------------------------------------------
**
** COPY (bytecount)
** << source_address >>
** << destination_address >>
**
**-----------------------------------------------------------
*/
#define SCR_COPY(n) (0xc0000000 | (n))
/*-----------------------------------------------------------
**
** Register move and binary operations
**
**-----------------------------------------------------------
**
** SFBR_REG (reg, op, data) reg = SFBR op data
** << 0 >>
**
** REG_SFBR (reg, op, data) SFBR = reg op data
** << 0 >>
**
** REG_REG (reg, op, data) reg = reg op data
** << 0 >>
**
**-----------------------------------------------------------
*/
#define SCR_REG_OFS(ofs) ((ofs) << 16ul)
#define SCR_SFBR_REG(reg,op,data) \
(0x68000000 | (SCR_REG_OFS(REG(reg))) | (op) | ((data)<<8ul))
#define SCR_REG_SFBR(reg,op,data) \
(0x70000000 | (SCR_REG_OFS(REG(reg))) | (op) | ((data)<<8ul))
#define SCR_REG_REG(reg,op,data) \
(0x78000000 | (SCR_REG_OFS(REG(reg))) | (op) | ((data)<<8ul))
#define SCR_LOAD 0x00000000
#define SCR_SHL 0x01000000
#define SCR_OR 0x02000000
#define SCR_XOR 0x03000000
#define SCR_AND 0x04000000
#define SCR_SHR 0x05000000
#define SCR_ADD 0x06000000
#define SCR_ADDC 0x07000000
/*-----------------------------------------------------------
**
** FROM_REG (reg) reg = SFBR
** << 0 >>
**
** TO_REG (reg) SFBR = reg
** << 0 >>
**
** LOAD_REG (reg, data) reg = <data>
** << 0 >>
**
** LOAD_SFBR(data) SFBR = <data>
** << 0 >>
**
**-----------------------------------------------------------
*/
#define SCR_FROM_REG(reg) \
SCR_REG_SFBR(reg,SCR_OR,0)
#define SCR_TO_REG(reg) \
SCR_SFBR_REG(reg,SCR_OR,0)
#define SCR_LOAD_REG(reg,data) \
SCR_REG_REG(reg,SCR_LOAD,data)
#define SCR_LOAD_SFBR(data) \
(SCR_REG_SFBR (gpreg, SCR_LOAD, data))
/*-----------------------------------------------------------
**
** Waiting for Disconnect or Reselect
**
**-----------------------------------------------------------
**
** JUMP [ | IFTRUE/IFFALSE ( ... ) ]
** <<address>>
**
** JUMPR [ | IFTRUE/IFFALSE ( ... ) ]
** <<distance>>
**
** CALL [ | IFTRUE/IFFALSE ( ... ) ]
** <<address>>
**
** CALLR [ | IFTRUE/IFFALSE ( ... ) ]
** <<distance>>
**
** RETURN [ | IFTRUE/IFFALSE ( ... ) ]
** <<dummy>>
**
** INT [ | IFTRUE/IFFALSE ( ... ) ]
** <<ident>>
**
** INT_FLY [ | IFTRUE/IFFALSE ( ... ) ]
** <<ident>>
**
** Conditions:
** WHEN (phase)
** IF (phase)
** CARRY
** DATA (data, mask)
**
**-----------------------------------------------------------
*/
#define SCR_JUMP 0x80080000
#define SCR_JUMPR 0x80880000
#define SCR_CALL 0x88080000
#define SCR_CALLR 0x88880000
#define SCR_RETURN 0x90080000
#define SCR_INT 0x98080000
#define SCR_INT_FLY 0x98180000
#define IFFALSE(arg) (0x00080000 | (arg))
#define IFTRUE(arg) (0x00000000 | (arg))
#define WHEN(phase) (0x00030000 | (phase))
#define IF(phase) (0x00020000 | (phase))
#define DATA(D) (0x00040000 | ((D) & 0xff))
#define MASK(D,M) (0x00040000 | (((M ^ 0xff) & 0xff) << 8ul)|((D) & 0xff))
#define CARRYSET (0x00200000)
/*-----------------------------------------------------------
**
** SCSI constants.
**
**-----------------------------------------------------------
*/
/*
** Messages
*/
#define M_COMPLETE (0x00)
#define M_EXTENDED (0x01)
#define M_SAVE_DP (0x02)
#define M_RESTORE_DP (0x03)
#define M_DISCONNECT (0x04)
#define M_ID_ERROR (0x05)
#define M_ABORT (0x06)
#define M_REJECT (0x07)
#define M_NOOP (0x08)
#define M_PARITY (0x09)
#define M_LCOMPLETE (0x0a)
#define M_FCOMPLETE (0x0b)
#define M_RESET (0x0c)
#define M_ABORT_TAG (0x0d)
#define M_CLEAR_QUEUE (0x0e)
#define M_INIT_REC (0x0f)
#define M_REL_REC (0x10)
#define M_TERMINATE (0x11)
#define M_SIMPLE_TAG (0x20)
#define M_HEAD_TAG (0x21)
#define M_ORDERED_TAG (0x22)
#define M_IGN_RESIDUE (0x23)
#define M_IDENTIFY (0x80)
#define M_X_MODIFY_DP (0x00)
#define M_X_SYNC_REQ (0x01)
#define M_X_WIDE_REQ (0x03)
/*
** Status
*/
#define S_GOOD (0x00)
#define S_CHECK_COND (0x02)
#define S_COND_MET (0x04)
#define S_BUSY (0x08)
#define S_INT (0x10)
#define S_INT_COND_MET (0x14)
#define S_CONFLICT (0x18)
#define S_TERMINATED (0x20)
#define S_QUEUE_FULL (0x28)
#define S_ILLEGAL (0xff)
#define S_SENSE (0x80)
#endif /*__NCR_REG_H__*/
|
