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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
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 | ||
1da177e4 | 15 | #ifndef CMD_PER_LUN |
21351013 | 16 | #define CMD_PER_LUN 2 |
1da177e4 LT |
17 | #endif |
18 | ||
19 | #ifndef CAN_QUEUE | |
21351013 | 20 | #define CAN_QUEUE 16 |
1da177e4 LT |
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 | */ | |
21351013 | 27 | #define A3000_XFER_MASK (0x00000003) |
1da177e4 | 28 | |
c57c1cab | 29 | struct a3000_scsiregs { |
21351013 GU |
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; | |
c57c1cab | 50 | }; |
1da177e4 LT |
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 */ |