1/*	$NetBSD: screg.h,v 1.1 2001/06/11 15:09:54 fredette Exp $	*/
2
3/*-
4 * Copyright (c) 2001 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Matthew Fredette.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32/*
33 * Register map for the Sun2 SCSI Interface (sc)
34 */
35
36#if __for_reference_only__
37struct sunsc_regs {
38	u_char	sunsc_data;	/* data register */
39	u_char	sunsc_unused0;
40	u_char	sunsc_cmd_stat;	/* command/status register */
41	u_char	sunsc_unused1;
42	u_short	sunsc_icr;	/* interface control register */
43	u_short	sunsc_unused2;
44	u_short	sunsc_dma_addr_h;	/* DMA address, high 16 */
45	u_short	sunsc_dma_addr_l;	/* DMA address, low 16 */
46	u_short	sunsc_dma_count;/* DMA count */
47	u_char	sunsc_unused3;
48	u_char	sunsc_intvec;	/* interrupt vector (VME only) */
49};
50#endif
51
52/* Register offsets. */
53#define	SCREG_DATA		(0)
54#define	SCREG_CMD_STAT		(2)
55#define	SCREG_ICR		(4)
56#define	SCREG_DMA_ADDR_H	(8)
57#define	SCREG_DMA_ADDR_L	(10)
58#define	SCREG_DMA_COUNT		(12)
59#define	SCREG_INTVEC		(15)
60#define	SCREG_BANK_SZ		(16)
61
62