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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef A3000_H3#define A3000_H4 5/* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $6 *7 * Header file for the Amiga 3000 built-in SCSI controller for Linux8 *9 * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info10 *11 */12 13#include <linux/types.h>14 15#ifndef CMD_PER_LUN16#define CMD_PER_LUN 217#endif18 19#ifndef CAN_QUEUE20#define CAN_QUEUE 1621#endif22 23/*24 * if the transfer address ANDed with this results in a non-zero25 * result, then we can't use DMA.26 */27#define A3000_XFER_MASK (0x00000003)28 29struct a3000_scsiregs {30 unsigned char pad1[2];31 volatile unsigned short DAWR;32 volatile unsigned int WTC;33 unsigned char pad2[2];34 volatile unsigned short CNTR;35 volatile unsigned long ACR;36 unsigned char pad3[2];37 volatile unsigned short ST_DMA;38 unsigned char pad4[2];39 volatile unsigned short FLUSH;40 unsigned char pad5[2];41 volatile unsigned short CINT;42 unsigned char pad6[2];43 volatile unsigned short ISTR;44 unsigned char pad7[30];45 volatile unsigned short SP_DMA;46 unsigned char pad8;47 volatile unsigned char SASR;48 unsigned char pad9;49 volatile unsigned char SCMD;50};51 52#define DAWR_A3000 (3)53 54/* CNTR bits. */55#define CNTR_TCEN (1<<5)56#define CNTR_PREST (1<<4)57#define CNTR_PDMD (1<<3)58#define CNTR_INTEN (1<<2)59#define CNTR_DDIR (1<<1)60#define CNTR_IO_DX (1<<0)61 62/* ISTR bits. */63#define ISTR_INTX (1<<8)64#define ISTR_INT_F (1<<7)65#define ISTR_INTS (1<<6)66#define ISTR_E_INT (1<<5)67#define ISTR_INT_P (1<<4)68#define ISTR_UE_INT (1<<3)69#define ISTR_OE_INT (1<<2)70#define ISTR_FF_FLG (1<<1)71#define ISTR_FE_FLG (1<<0)72 73#endif /* A3000_H */74