ofisavar.h revision 1.6 
1/*	$NetBSD: ofisavar.h,v 1.6 2005/12/11 12:22:48 christos Exp $	*/
2
3/*
4 * Copyright 1998
5 * Digital Equipment Corporation. All rights reserved.
6 *
7 * This software is furnished under license and may be used and
8 * copied only in accordance with the following terms and conditions.
9 * Subject to these conditions, you may download, copy, install,
10 * use, modify and distribute this software in source and/or binary
11 * form. No title or ownership is transferred hereby.
12 *
13 * 1) Any source code used, modified or distributed must reproduce
14 *    and retain this copyright notice and list of conditions as
15 *    they appear in the source file.
16 *
17 * 2) No right is granted to use any trade name, trademark, or logo of
18 *    Digital Equipment Corporation. Neither the "Digital Equipment
19 *    Corporation" name nor any trademark or logo of Digital Equipment
20 *    Corporation may be used to endorse or promote products derived
21 *    from this software without the prior written permission of
22 *    Digital Equipment Corporation.
23 *
24 * 3) This software is provided "AS-IS" and any express or implied
25 *    warranties, including but not limited to, any implied warranties
26 *    of merchantability, fitness for a particular purpose, or
27 *    non-infringement are disclaimed. In no event shall DIGITAL be
28 *    liable for any damages whatsoever, and in particular, DIGITAL
29 *    shall not be liable for special, indirect, consequential, or
30 *    incidental damages or damages for lost profits, loss of
31 *    revenue or loss of use, whether such damages arise in contract,
32 *    negligence, tort, under statute, in equity, at law or otherwise,
33 *    even if advised of the possibility of such damage.
34 */
35
36#ifndef _DEV_OFISA_OFISAVAR_H_
37#define	_DEV_OFISA_OFISAVAR_H_
38
39struct ofisa_attach_args {
40	struct ofbus_attach_args oba;	/* common */
41
42	bus_space_tag_t	iot;		/* i/o space tag */
43	bus_space_tag_t	memt;		/* mem space tag */
44	bus_dma_tag_t	dmat;		/* DMA tag */
45	isa_chipset_tag_t ic;		/* chipset tag (for intr, etc.) */
46};
47
48struct ofisa_reg_desc {
49	int		type;		/* type.  XXX aliasing modifiers? */
50	bus_addr_t	addr;		/* base address. */
51	bus_size_t	len;		/* length. */
52};
53
54#define	OFISA_REG_TYPE_MEM	0	/* memory space */
55#define	OFISA_REG_TYPE_IO	1	/* I/O space */
56
57struct ofisa_intr_desc {
58	int		share;		/* sharing type: IST_*. */
59	int		irq;		/* IRQ. */
60};
61
62struct ofisa_dma_desc {
63	int		drq;		/* DMA request */
64	int		mode;		/* DMA mode */
65	int		width;		/* DMA width */
66	int		countwidth;	/* DMA count width */
67	int		busmaster;	/* boolean; is a busmaster */
68};
69
70#define	OFISA_DMA_MODE_COMPAT	0	/* compatibility mode */
71#define	OFISA_DMA_MODE_A	1	/* DMA A mode */
72#define	OFISA_DMA_MODE_B	2	/* DMA B mode */
73#define	OFISA_DMA_MODE_F	3	/* DMA F mode */
74#define	OFISA_DMA_MODE_C	4	/* DMA C mode */
75
76/*
77 * Machine-dependent function/macro definitions.
78 *
79 * Machine-dependent code must implement at least:
80 *
81 *	int	ofisa_get_isabus_data(int phandle,
82 *		    struct isabus_attach_args *iba);
83 *
84 *	int	ofisa_ignore_child(int pphandle, int cphandle);
85 *
86 * Individual ofisa attachments may want addition functions or
87 * macros from this (or other) headers.  See those attachments'
88 * files for more details.
89 */
90#include <machine/ofisa_machdep.h>
91
92int	ofisa_reg_count(int);
93int	ofisa_reg_get(int, struct ofisa_reg_desc *, int);
94void	ofisa_reg_print(struct ofisa_reg_desc *, int);
95int	ofisa_intr_count(int);
96int	ofisa_intr_get(int, struct ofisa_intr_desc *, int);
97void	ofisa_intr_print(struct ofisa_intr_desc *, int);
98int	ofisa_dma_count(int);
99int	ofisa_dma_get(int, struct ofisa_dma_desc *, int);
100void	ofisa_dma_print(struct ofisa_dma_desc *, int);
101
102#endif /* _DEV_OFISA_OFISAVAR_H_ */
103