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1da177e4
LT
1#ifndef A3000_H
2#define A3000_H
3
4/* $Id: a3000.h,v 1.4 1997/01/19 23:07:10 davem Exp $
5 *
6 * Header file for the Amiga 3000 built-in SCSI controller for Linux
7 *
8 * Written and (C) 1993, Hamish Macdonald, see a3000.c for more info
9 *
10 */
11
12#include <linux/types.h>
13
1da177e4 14#ifndef CMD_PER_LUN
21351013 15#define CMD_PER_LUN 2
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16#endif
17
18#ifndef CAN_QUEUE
21351013 19#define CAN_QUEUE 16
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20#endif
21
22/*
23 * if the transfer address ANDed with this results in a non-zero
24 * result, then we can't use DMA.
25 */
21351013 26#define A3000_XFER_MASK (0x00000003)
1da177e4 27
c57c1cab 28struct a3000_scsiregs {
21351013
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29 unsigned char pad1[2];
30 volatile unsigned short DAWR;
31 volatile unsigned int WTC;
32 unsigned char pad2[2];
33 volatile unsigned short CNTR;
34 volatile unsigned long ACR;
35 unsigned char pad3[2];
36 volatile unsigned short ST_DMA;
37 unsigned char pad4[2];
38 volatile unsigned short FLUSH;
39 unsigned char pad5[2];
40 volatile unsigned short CINT;
41 unsigned char pad6[2];
42 volatile unsigned short ISTR;
43 unsigned char pad7[30];
44 volatile unsigned short SP_DMA;
45 unsigned char pad8;
46 volatile unsigned char SASR;
47 unsigned char pad9;
48 volatile unsigned char SCMD;
c57c1cab 49};
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50
51#define DAWR_A3000 (3)
52
53/* CNTR bits. */
54#define CNTR_TCEN (1<<5)
55#define CNTR_PREST (1<<4)
56#define CNTR_PDMD (1<<3)
57#define CNTR_INTEN (1<<2)
58#define CNTR_DDIR (1<<1)
59#define CNTR_IO_DX (1<<0)
60
61/* ISTR bits. */
62#define ISTR_INTX (1<<8)
63#define ISTR_INT_F (1<<7)
64#define ISTR_INTS (1<<6)
65#define ISTR_E_INT (1<<5)
66#define ISTR_INT_P (1<<4)
67#define ISTR_UE_INT (1<<3)
68#define ISTR_OE_INT (1<<2)
69#define ISTR_FF_FLG (1<<1)
70#define ISTR_FE_FLG (1<<0)
71
72#endif /* A3000_H */