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Diffstat (limited to 'scsi/adapters/scsi_53C700.h')
| -rw-r--r-- | scsi/adapters/scsi_53C700.h | 327 |
1 files changed, 0 insertions, 327 deletions
diff --git a/scsi/adapters/scsi_53C700.h b/scsi/adapters/scsi_53C700.h deleted file mode 100644 index 224fc5b..0000000 --- a/scsi/adapters/scsi_53C700.h +++ /dev/null @@ -1,327 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1991,1990,1989 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie the - * rights to redistribute these changes. - */ -/* - * File: scsi_53C700.h - * Author: Alessandro Forin, Carnegie Mellon University - * Date: 8/91 - * - * Defines for the NCR 53C700 (SCSI I/O Processor) - */ - -/* - * Register map - */ - -typedef struct { - volatile unsigned char siop_scntl0; /* rw: SCSI control reg 0 */ - volatile unsigned char siop_scntl1; /* rw: SCSI control reg 1 */ - volatile unsigned char siop_sdid; /* rw: SCSI Destination ID */ - volatile unsigned char siop_sien; /* rw: SCSI Interrupt Enable */ - volatile unsigned char siop_scid; /* rw: SCSI Chip ID reg */ - volatile unsigned char siop_sxfer; /* rw: SCSI Transfer reg */ - volatile unsigned char siop_sodl; /* rw: SCSI Output Data Latch */ - volatile unsigned char siop_socl; /* rw: SCSI Output Control Latch */ - volatile unsigned char siop_sfbr; /* ro: SCSI First Byte Received */ - volatile unsigned char siop_sidl; /* ro: SCSI Input Data Latch */ - volatile unsigned char siop_sbdl; /* ro: SCSI Bus Data Lines */ - volatile unsigned char siop_sbcl; /* ro: SCSI Bus Control Lines */ - volatile unsigned char siop_dstat; /* ro: DMA status */ - volatile unsigned char siop_sstat0; /* ro: SCSI status reg 0 */ - volatile unsigned char siop_sstat1; /* ro: SCSI status reg 1 */ - volatile unsigned char siop_sstat2; /* ro: SCSI status reg 2 */ - volatile unsigned char siop_res1; - volatile unsigned char siop_res2; - volatile unsigned char siop_res3; - volatile unsigned char siop_res4; - volatile unsigned char siop_ctest0; /* ro: Chip test register 0 */ - volatile unsigned char siop_ctest1; /* ro: Chip test register 1 */ - volatile unsigned char siop_ctest2; /* ro: Chip test register 2 */ - volatile unsigned char siop_ctest3; /* ro: Chip test register 3 */ - volatile unsigned char siop_ctest4; /* rw: Chip test register 4 */ - volatile unsigned char siop_ctest5; /* rw: Chip test register 5 */ - volatile unsigned char siop_ctest6; /* rw: Chip test register 6 */ - volatile unsigned char siop_ctest7; /* rw: Chip test register 7 */ - volatile unsigned char siop_temp0; /* rw: Temporary Stack reg */ - volatile unsigned char siop_temp1; - volatile unsigned char siop_temp2; - volatile unsigned char siop_temp3; - volatile unsigned char siop_dfifo; /* rw: DMA FIFO */ - volatile unsigned char siop_istat; /* rw: Interrupt Status reg */ - volatile unsigned char siop_res5; - volatile unsigned char siop_res6; - volatile unsigned char siop_dbc0; /* rw: DMA Byte Counter reg */ - volatile unsigned char siop_dbc1; - volatile unsigned char siop_dbc2; - volatile unsigned char siop_dcmd; /* rw: DMA Command Register */ - volatile unsigned char siop_dnad0; /* rw: DMA Next Address */ - volatile unsigned char siop_dnad1; - volatile unsigned char siop_dnad2; - volatile unsigned char siop_dnad3; - volatile unsigned char siop_dsp0; /* rw: DMA SCRIPTS Pointer reg */ - volatile unsigned char siop_dsp1; - volatile unsigned char siop_dsp2; - volatile unsigned char siop_dsp3; - volatile unsigned char siop_dsps0; /* rw: DMA SCRIPTS Pointer Save reg */ - volatile unsigned char siop_dsps1; - volatile unsigned char siop_dsps2; - volatile unsigned char siop_dsps3; - volatile unsigned char siop_dmode; /* rw: DMA Mode reg */ - volatile unsigned char siop_res7; - volatile unsigned char siop_res8; - volatile unsigned char siop_res9; - volatile unsigned char siop_res10; - volatile unsigned char siop_dien; /* rw: DMA Interrupt Enable */ - volatile unsigned char siop_dwt; /* rw: DMA Watchdog Timer */ - volatile unsigned char siop_dcntl; /* rw: DMA Control reg */ - volatile unsigned char siop_res11; - volatile unsigned char siop_res12; - volatile unsigned char siop_res13; - volatile unsigned char siop_res14; - -} siop_regmap_t; - -/* - * Register defines - */ - -/* Scsi control register 0 (scntl0) */ - -#define SIOP_SCNTL0_ARB 0xc0 /* Arbitration mode */ -# define SIOP_ARB_SIMPLE 0x00 -# define SIOP_ARB_FULL 0xc0 -#define SIOP_SCNTL0_START 0x20 /* Start Sequence */ -#define SIOP_SCNTL0_WATN 0x10 /* (Select) With ATN */ -#define SIOP_SCNTL0_EPC 0x08 /* Enable Parity Checking */ -#define SIOP_SCNTL0_EPG 0x04 /* Enable Parity Generation */ -#define SIOP_SCNTL0_AAP 0x02 /* Assert ATN on Parity Error */ -#define SIOP_SCNTL0_TRG 0x01 /* Target Mode */ - -/* Scsi control register 1 (scntl1) */ - -#define SIOP_SCNTL1_EXC 0x80 /* Extra Clock Cycle of data setup */ -#define SIOP_SCNTL1_ADB 0x40 /* Assert Data Bus */ -#define SIOP_SCNTL1_ESR 0x20 /* Enable Selection/Reselection */ -#define SIOP_SCNTL1_CON 0x10 /* Connected */ -#define SIOP_SCNTL1_RST 0x08 /* Assert RST */ -#define SIOP_SCNTL1_PAR 0x04 /* Force bad Parity */ -#define SIOP_SCNTL1_SND 0x02 /* Start Send operation */ -#define SIOP_SCNTL1_RCV 0x01 /* Start Receive operation */ - -/* Scsi interrupt enable register (sien) */ - -#define SIOP_SIEN_M_A 0x80 /* Phase Mismatch or ATN active */ -#define SIOP_SIEN_FC 0x40 /* Function Complete */ -#define SIOP_SIEN_STO 0x20 /* (Re)Selection timeout */ -#define SIOP_SIEN_SEL 0x10 /* (Re)Selected */ -#define SIOP_SIEN_SGE 0x08 /* SCSI Gross Error */ -#define SIOP_SIEN_UDC 0x04 /* Unexpected Disconnect */ -#define SIOP_SIEN_RST 0x02 /* RST asserted */ -#define SIOP_SIEN_PAR 0x01 /* Parity Error */ - -/* Scsi chip ID (scid) */ - -#define SIOP_SCID_VALUE(i) (1<<i) - -/* Scsi transfer register (sxfer) */ - -#define SIOP_SXFER_DHP 0x80 /* Disable Halt on Parity error/ ATN asserted */ -#define SIOP_SXFER_TP 0x70 /* Synch Transfer Period */ - /* see specs for formulas: - Period = TCP * (4 + XFERP ) - TCP = 1 + CLK + 1..2; - */ -#define SIOP_SXFER_MO 0x0f /* Synch Max Offset */ -# define SIOP_MAX_OFFSET 8 - -/* Scsi output data latch register (sodl) */ - -/* Scsi output control latch register (socl) */ - -#define SIOP_REQ 0x80 /* SCSI signal <x> asserted */ -#define SIOP_ACK 0x40 -#define SIOP_BSY 0x20 -#define SIOP_SEL 0x10 -#define SIOP_ATN 0x08 -#define SIOP_MSG 0x04 -#define SIOP_CD 0x02 -#define SIOP_IO 0x01 - -#define SIOP_PHASE(socl) SCSI_PHASE(socl) - -/* Scsi first byte received register (sfbr) */ - -/* Scsi input data latch register (sidl) */ - -/* Scsi bus data lines register (sbdl) */ - -/* Scsi bus control lines register (sbcl). Same as socl */ - -/* DMA status register (dstat) */ - -#define SIOP_DSTAT_DFE 0x80 /* DMA FIFO empty */ -#define SIOP_DSTAT_RES 0x60 -#define SIOP_DSTAT_ABRT 0x10 /* Aborted */ -#define SIOP_DSTAT_SSI 0x08 /* SCRIPT Single Step */ -#define SIOP_DSTAT_SIR 0x04 /* SCRIPT Interrupt Instruction */ -#define SIOP_DSTAT_WTD 0x02 /* Watchdog Timeout Detected */ -#define SIOP_DSTAT_OPC 0x01 /* Invalid SCRIPTS Opcode */ - -/* Scsi status register 0 (sstat0) */ - -#define SIOP_SSTAT0_M_A 0x80 /* Phase Mismatch or ATN active */ -#define SIOP_SSTAT0_FC 0x40 /* Function Complete */ -#define SIOP_SSTAT0_STO 0x20 /* (Re)Selection timeout */ -#define SIOP_SSTAT0_SEL 0x10 /* (Re)Selected */ -#define SIOP_SSTAT0_SGE 0x08 /* SCSI Gross Error */ -#define SIOP_SSTAT0_UDC 0x04 /* Unexpected Disconnect */ -#define SIOP_SSTAT0_RST 0x02 /* RST asserted */ -#define SIOP_SSTAT0_PAR 0x01 /* Parity Error */ - -/* Scsi status register 1 (sstat1) */ - -#define SIOP_SSTAT1_ILF 0x80 /* Input latch (sidl) full */ -#define SIOP_SSTAT1_ORF 0x40 /* output reg (sodr) full */ -#define SIOP_SSTAT1_OLF 0x20 /* output latch (sodl) full */ -#define SIOP_SSTAT1_AIP 0x10 /* Arbitration in progress */ -#define SIOP_SSTAT1_LOA 0x08 /* Lost arbitration */ -#define SIOP_SSTAT1_WOA 0x04 /* Won arbitration */ -#define SIOP_SSTAT1_RST 0x02 /* SCSI RST current value */ -#define SIOP_SSTAT1_SDP 0x01 /* SCSI SDP current value */ - -/* Scsi status register 2 (sstat2) */ - -#define SIOP_SSTAT2_FF 0xf0 /* SCSI FIFO flags (bytecount) */ -# define SIOP_SCSI_FIFO_DEEP 8 -#define SIOP_SSTAT2_SDP 0x08 /* Latched (on REQ) SCSI SDP */ -#define SIOP_SSTAT2_MSG 0x04 /* Latched SCSI phase */ -#define SIOP_SSTAT2_CD 0x02 -#define SIOP_SSTAT2_IO 0x01 - -/* Chip test register 0 (ctest0) */ - -#define SIOP_CTEST0_RES 0xfc -#define SIOP_CTEST0_RTRG 0x02 /* Real Target mode */ -#define SIOP_CTEST0_DDIR 0x01 /* Xfer direction (1-> from SCSI bus) */ - -/* Chip test register 1 (ctest1) */ - -#define SIOP_CTEST1_FMT 0xf0 /* Byte empty in DMA FIFO bottom (high->byte3) */ -#define SIOP_CTEST1_FFL 0x0f /* Byte full in DMA FIFO top, same */ - -/* Chip test register 2 (ctest2) */ - -#define SIOP_CTEST2_RES 0xc0 -#define SIOP_CTEST2_SOFF 0x20 /* Synch Offset compare (1-> zero Init, max Tgt */ -#define SIOP_CTEST2_SFP 0x10 /* SCSI FIFO Parity */ -#define SIOP_CTEST2_DFP 0x08 /* DMA FIFO Parity */ -#define SIOP_CTEST2_TEOP 0x04 /* True EOP (a-la 5380) */ -#define SIOP_CTEST2_DREQ 0x02 /* DREQ status */ -#define SIOP_CTEST2_DACK 0x01 /* DACK status */ - -/* Chip test register 3 (ctest3) read-only, top of SCSI FIFO */ - -/* Chip test register 4 (ctest4) */ - -#define SIOP_CTEST4_RES 0x80 -#define SIOP_CTEST4_ZMOD 0x40 /* High-impedance outputs */ -#define SIOP_CTEST4_SZM 0x20 /* ditto, SCSI "outputs" */ -#define SIOP_CTEST4_SLBE 0x10 /* SCSI loobpack enable */ -#define SIOP_CTEST4_SFWR 0x08 /* SCSI FIFO write enable (from sodl) */ -#define SIOP_CTEST4_FBL 0x07 /* DMA FIFO Byte Lane select (from ctest6) - 4->0, .. 7->3 */ - -/* Chip test register 5 (ctest5) */ - -#define SIOP_CTEST5_ADCK 0x80 /* Clock Address Incrementor */ -#define SIOP_CTEST5_BBCK 0x40 /* Clock Byte counter */ -#define SIOP_CTEST5_ROFF 0x20 /* Reset SCSI offset */ -#define SIOP_CTEST5_MASR 0x10 /* Master set/reset pulses (of bits 3-0) */ -#define SIOP_CTEST5_DDIR 0x08 /* (re)set internal DMA direction */ -#define SIOP_CTEST5_EOP 0x04 /* (re)set internal EOP */ -#define SIOP_CTEST5_DREQ 0x02 /* (re)set internal REQ */ -#define SIOP_CTEST5_DACK 0x01 /* (re)set internal ACK */ - -/* Chip test register 6 (ctest6) DMA FIFO access */ - -/* Chip test register 7 (ctest7) */ - -#define SIOP_CTEST7_RES 0xe0 -#define SIOP_CTEST7_STD 0x10 /* Disable selection timeout */ -#define SIOP_CTEST7_DFP 0x08 /* DMA FIFO parity bit */ -#define SIOP_CTEST7_EVP 0x04 /* Even parity (to host bus) */ -#define SIOP_CTEST7_DC 0x02 /* Drive DC pin low on SCRIPT fetches */ -#define SIOP_CTEST7_DIFF 0x01 /* Differential mode */ - -/* DMA FIFO register (dfifo) */ - -#define SIOP_DFIFO_FLF 0x80 /* Flush (spill) DMA FIFO */ -#define SIOP_DFIFO_CLF 0x40 /* Clear DMA and SCSI FIFOs */ -#define SIOP_DFIFO_BO 0x3f /* FIFO byte offset counter */ - -/* Interrupt status register (istat) */ - -#define SIOP_ISTAT_ABRT 0x80 /* Abort operation */ -#define SIOP_ISTAT_RES 0x70 -#define SIOP_ISTAT_CON 0x08 /* Connected */ -#define SIOP_ISTAT_PRE 0x04 /* Pointer register empty */ -#define SIOP_ISTAT_SIP 0x02 /* SCSI Interrupt pending */ -#define SIOP_ISTAT_DIP 0x01 /* DMA Interrupt pending */ - - -/* DMA Mode register (dmode) */ - -#define SIOP_DMODE_BL_MASK 0xc0 /* 0->1 1->2 2->4 3->8 */ -#define SIOP_DMODE_BW16 0x20 /* Bus Width is 16 bits */ -#define SIOP_DMODE_286 0x10 /* 286 mode */ -#define SIOP_DMODE_IO_M 0x08 /* xfer data to memory or I/O space */ -#define SIOP_DMODE_FAM 0x04 /* fixed address mode */ -#define SIOP_DMODE_PIPE 0x02 /* SCRIPTS in Pipeline mode */ -#define SIOP_DMODE_MAN 0x01 /* SCRIPTS in Manual start mode */ - -/* DMA interrupt enable register (dien) */ - -#define SIOP_DIEN_RES 0xe0 -#define SIOP_DIEN_ABRT 0x10 /* On Abort */ -#define SIOP_DIEN_SSI 0x08 /* On SCRIPTS sstep */ -#define SIOP_DIEN_SIR 0x04 /* On SCRIPTS intr instruction */ -#define SIOP_DIEN_WTD 0x02 /* On watchdog timeout */ -#define SIOP_DIEN_OPC 0x01 /* On SCRIPTS illegal opcode */ - -/* DMA control register (dcntl) */ - -#define SIOP_DCNTL_CF_MASK 0xc0 /* Clock frequency dividers: - 0 --> 37.51..50.00 Mhz, div=2 - 1 --> 25.01..37.50 Mhz, div=1.5 - 2 --> 16.67..25.00 Mhz, div=1 - 3 --> reserved - */ -#define SIOP_DCNTL_S16 0x20 /* SCRIPTS fetches 16bits at a time */ -#define SIOP_DCNTL_SSM 0x10 /* Single step mode */ -#define SIOP_DCNTL_LLM 0x08 /* Enable Low-level mode */ -#define SIOP_DCNTL_STD 0x04 /* Start SCRIPTS operation */ -#define SIOP_DCNTL_RES 0x02 -#define SIOP_DCNTL_RST 0x01 /* Software reset */ - 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