a3000.h (1630B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef A3000_H 3#define A3000_H 4 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 Linux 8 * 9 * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info 10 * 11 */ 12 13#include <linux/types.h> 14 15#ifndef CMD_PER_LUN 16#define CMD_PER_LUN 2 17#endif 18 19#ifndef CAN_QUEUE 20#define CAN_QUEUE 16 21#endif 22 23/* 24 * if the transfer address ANDed with this results in a non-zero 25 * 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 */