/* $NetBSD: ncrreg.h,v 1.5 1995/10/01 20:51:37 mycroft Exp $ */ /************************************************************************** ** ** $Id: ncrreg.h,v 1.5 1995/10/01 20:51:37 mycroft Exp $ ** ** Device driver for the NCR 53C810 PCI-SCSI-Controller. ** ** 386bsd / FreeBSD / NetBSD ** **------------------------------------------------------------------------- ** ** Written for 386bsd and FreeBSD by ** wolf@cologne.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]*/ #define LDSC 0x02 /* sta: disconnect & reconnect */ /*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) ** <> ** ** MOVE_IND (LEN) ** <> ** ** MOVE_TBL ** <> ** **----------------------------------------------------------- */ #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] ** <> ** ** SEL_TBL | << dnad_offset>> [ | REL_JMP] ** <> ** **----------------------------------------------------------- */ #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: <> ** ** WAIT_RESEL ** <> ** **----------------------------------------------------------- */ #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 = ** << 0 >> ** ** LOAD_SFBR(data) SFBR = ** << 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 ( ... ) ] ** <
> ** ** JUMPR [ | IFTRUE/IFFALSE ( ... ) ] ** <> ** ** CALL [ | IFTRUE/IFFALSE ( ... ) ] ** <
> ** ** CALLR [ | IFTRUE/IFFALSE ( ... ) ] ** <> ** ** RETURN [ | IFTRUE/IFFALSE ( ... ) ] ** <> ** ** INT [ | IFTRUE/IFFALSE ( ... ) ] ** <> ** ** INT_FLY [ | IFTRUE/IFFALSE ( ... ) ] ** <> ** ** 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. ** **----------------------------------------------------------- */ /* ** 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__*/