1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef GVP11_H |
3 | |
4 | /* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $ |
5 | * |
6 | * Header file for the GVP Series II SCSI controller for Linux |
7 | * |
8 | * Written and (C) 1993, Ralf Baechle, see gvp11.c for more info |
9 | * based on a2091.h (C) 1993 by Hamish Macdonald |
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 GVP11_XFER_MASK (0xff000001) |
28 | |
29 | struct gvp11_scsiregs { |
30 | unsigned char pad1[64]; |
31 | volatile unsigned short CNTR; |
32 | unsigned char pad2[31]; |
33 | volatile unsigned char SASR; |
34 | unsigned char pad3; |
35 | volatile unsigned char SCMD; |
36 | unsigned char pad4[4]; |
37 | volatile unsigned short BANK; |
38 | unsigned char pad5[6]; |
39 | volatile unsigned long ACR; |
40 | volatile unsigned short secret1; /* store 0 here */ |
41 | volatile unsigned short ST_DMA; |
42 | volatile unsigned short SP_DMA; |
43 | volatile unsigned short secret2; /* store 1 here */ |
44 | volatile unsigned short secret3; /* store 15 here */ |
45 | }; |
46 | |
47 | /* bits in CNTR */ |
48 | #define GVP11_DMAC_BUSY (1<<0) |
49 | #define GVP11_DMAC_INT_PENDING (1<<1) |
50 | #define GVP11_DMAC_INT_ENABLE (1<<3) |
51 | #define GVP11_DMAC_DIR_WRITE (1<<4) |
52 | |
53 | #endif /* GVP11_H */ |
54 | |