1/*	$NetBSD: pcscpreg.h,v 1.2 2008/04/28 20:23:55 martin Exp $	*/
2
3/*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Izumi Tsutsui.
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/* $FreeBSD: releng/11.0/sys/dev/esp/am53c974reg.h 227006 2011-11-01 21:26:57Z marius $ */
33
34#ifndef _AM53C974_H_
35#define	_AM53C974_H_
36
37/*
38 * Am53c974 DMA engine registers
39 */
40
41#define	DMA_CMD		0x40 		/* Command */
42#define	 DMACMD_RSVD	0xFFFFFF28	/* reserved */
43#define	 DMACMD_DIR	0x00000080	/* Transfer Direction (read:1) */
44#define	 DMACMD_INTE	0x00000040	/* DMA Interrupt Enable	*/
45#define	 DMACMD_MDL	0x00000010	/* Map to Memory Description List */
46#define	 DMACMD_DIAG	0x00000004	/* Diagnostic */
47#define	 DMACMD_CMD	0x00000003	/* Command Code Bit */
48#define	  DMACMD_IDLE	0x00000000	/*  Idle */
49#define	  DMACMD_BLAST	0x00000001	/*  Blast */
50#define	  DMACMD_ABORT	0x00000002	/*  Abort */
51#define	  DMACMD_START	0x00000003	/*  Start */
52
53#define	DMA_STC		0x44		/* Start Transfer Count */
54#define	DMA_SPA		0x48		/* Start Physical Address */
55#define	DMA_WBC		0x4C		/* Working Byte Counter */
56#define	DMA_WAC		0x50		/* Working Address Counter */
57
58#define	DMA_STAT	0x54		/* Status Register */
59#define	 DMASTAT_RSVD	0xFFFFFF80	/* reserved */
60#define	 DMASTAT_PABT	0x00000040	/* PCI master/target Abort */
61#define	 DMASTAT_BCMP	0x00000020	/* BLAST Complete */
62#define	 DMASTAT_SINT	0x00000010	/* SCSI Interrupt */
63#define	 DMASTAT_DONE	0x00000008	/* DMA Transfer Terminated */
64#define	 DMASTAT_ABT	0x00000004	/* DMA Transfer Aborted */
65#define	 DMASTAT_ERR	0x00000002	/* DMA Transfer Error */
66#define	 DMASTAT_PWDN	0x00000001	/* Power Down Indicator */
67
68#define	DMA_SMDLA	0x58	/* Starting Memory Descpritor List Address */
69#define	DMA_WMAC	0x5C	/* Working MDL Counter */
70#define	DMA_SBAC	0x70	/* SCSI Bus and Control */
71
72#endif /* _AM53C974_H_ */
73