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
29struct 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