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