1/*	$NetBSD: uba_common.h,v 1.5 2008/03/11 05:34:02 matt Exp $ */
2/*-
3 * Copyright (c) 1982, 1986 The Regents of the University of California.
4 * All rights reserved.
5 * (c) UNIX System Laboratories, Inc.
6 * All or some portions of this file are derived from material licensed
7 * to the University of California by American Telephone and Telegraph
8 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
9 * the permission of UNIX System Laboratories, Inc.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 *	@(#)ubareg.h	7.8 (Berkeley) 5/9/91
36 */
37
38/*
39 * VAX-specific parts of the Unibus softc.
40 */
41struct uba_regs;
42
43struct	uba_vsoftc {
44	struct	uba_softc uv_sc;/* Common vars from dev/qbus/ubavar.h */
45	struct	vax_bus_dma_tag uv_dmat;
46	struct	vax_sgmap uv_sgmap;
47	int	uv_size;	/* Size of UBA addressable memory */
48	paddr_t uv_addr;	/* Physical address of map registers */
49	struct	uba_regs *uv_uba;/* Where applicable */
50	int	uh_ibase;
51	int	uh_zvtime;
52	int	uh_zvtotal;
53	int	uh_zvcnt;
54};
55
56/*
57 * Size of unibus memory address space in pages
58 * (also number of map registers).
59 */
60#define UBAPAGES	496
61#define UBAIOADDR	0760000	 /* start of I/O page */
62#define UBAIOPAGES	16
63
64/*
65 * DW780/DW750 hardware registers
66 */
67struct uba_regs {
68	volatile int	uba_cnfgr;	/* configuration register */
69	volatile int	uba_cr;		/* control register */
70	volatile int	uba_sr;		/* status register */
71	volatile int	uba_dcr;	/* diagnostic control register */
72	volatile int	uba_fmer;	/* failed map entry register */
73	volatile int	uba_fubar;	/* failed UNIBUS address register */
74	int		pad1[2];
75	volatile int	uba_brsvr[4];
76	volatile int	uba_brrvr[4];	/* receive vector registers */
77	volatile int	uba_dpr[16];	/* buffered data path register */
78	int		pad2[480];
79	struct pte	uba_map[UBAPAGES]; /* unibus map register */
80	int		pad3[UBAIOPAGES]; /* no maps for device address space */
81};
82
83void	uba_dma_init(struct uba_vsoftc *);
84