1/*	$NetBSD: zbusvar.h,v 1.9 2011/09/21 12:40:25 rkujawa Exp $	*/
2
3/*
4 * Copyright (c) 1994 Christian E. Hopps
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by Christian E. Hopps.
18 * 4. The name of the author may not be used to endorse or promote products
19 *    derived from this software without specific prior written permission
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32#ifndef _ZBUSVAR_H_
33#define _ZBUSVAR_H_
34
35struct zbus_args {
36	void *pa;
37	void *va;
38	int size;
39	int slot;
40	int manid;
41	int prodid;
42	int serno;
43};
44
45extern vaddr_t		ZTWOROMADDR;
46extern vaddr_t		ZTWOMEMADDR;
47extern u_int		NZTWOMEMPG;
48extern vaddr_t		ZBUSADDR;	/* kva of Zorro bus I/O pages */
49extern u_int		ZBUSAVAIL;	/* bytes of Zorro bus I/O space left */
50
51#define ZTWOROMBASE	(0x00D80000)
52#define ZTWOROMTOP	(0x00F80000)
53#define NZTWOROMPG	btoc(ZTWOROMTOP-ZTWOROMBASE)
54
55void *zbusmap(void *, u_int);
56
57/*
58 * maps a ztwo and/or A3000 builtin address into the mapped kva address
59 */
60#if defined(__m68k__)
61#define ztwomap(pa) \
62    ((volatile void *)((u_int)ZTWOROMADDR - ZTWOROMBASE + (u_int)(pa)))
63#define ztwopa(va) ((void *)(ZTWOROMBASE + (u_int)(va) - (u_int)ZTWOROMADDR))
64#else
65#define ztwomap(pa) ((volatile void *)(u_int)(pa))
66#define ztwopa(va) ((void *)(u_int)(va))
67#endif
68
69/*
70 * tests whether the address lies in our zorro2 rom space
71 */
72#define isztwokva(kva) \
73    ((u_int)(kva) >= ZTWOROMADDR && \
74    (u_int)(kva) < \
75    (ZTWOROMADDR + ZTWOROMTOP - ZTWOROMBASE))
76#define isztwopa(pa) ((u_int)(pa) >= ZTWOROMBASE && (u_int)(pa) <= ZTWOROMTOP)
77#define isztwomem(kva) \
78    (ZTWOMEMADDR && (u_int)(kva) >= ZTWOMEMADDR && \
79    (u_int)(kva) < (ZTWOMEMADDR + NZTWOMEMPG * PAGE_SIZE))
80
81#define ZTHREEBASE	(0x40000000)
82#define ZTHREETOP	((u_long)0x80000000)
83#define NZTHREEPG	btoc(ZTHREETOP - ZTHREEBASE)
84
85#define iszthreepa(pa) ((u_int)(pa) >= ZTHREEBASE && (u_int)(pa) <= ZTHREETOP)
86#endif /* _ZBUS_H_ */
87