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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 */