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1 /* SPDX-License-Identifier: GPL-2.0 */
4 /* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $
6 * Header file for the GVP Series II SCSI controller for Linux
8 * Written and (C) 1993, Ralf Baechle, see gvp11.c for more info
9 * based on a2091.h (C) 1993 by Hamish Macdonald
13 #include <linux/types.h>
24 * if the transfer address ANDed with this results in a non-zero
25 * result, then we can't use DMA.
27 #define GVP11_XFER_MASK (0xff000001)
29 struct gvp11_scsiregs
{
30 unsigned char pad1
[64];
31 volatile unsigned short CNTR
;
32 unsigned char pad2
[31];
33 volatile unsigned char SASR
;
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 */
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)