isa_common.h revision 47398 
1/*-
2 * Copyright (c) 1999 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$Id$
27 */
28
29/*
30 * Parts of the ISA bus implementation common to all architectures.
31 *
32 * Drivers must not depend on information in this file as it can change
33 * without notice.
34 */
35
36MALLOC_DECLARE(M_ISADEV);
37
38/*
39 * The structure used to attach devices to the isa bus.
40 */
41struct isa_device {
42	struct resource_list	id_resources;
43	int			id_flags;
44};
45
46#define DEVTOISA(dev)	((struct isa_device *) device_get_ivars(dev))
47
48/*
49 * These functions are architecture dependant.
50 */
51extern void isa_init(void);
52extern struct resource *isa_alloc_resource(device_t bus, device_t child,
53					   int type, int *rid,
54					   u_long start, u_long end,
55					   u_long count, u_int flags);
56extern int isa_release_resource(device_t bus, device_t child,
57				int type, int rid,
58				struct resource *r);
59
60/* XXX alphe declares these elsewhere */
61#ifndef __alpha__
62extern int isa_setup_intr(device_t bus, device_t child,
63			  struct resource *r, int flags,
64			  void (*ihand)(void *), void *arg, void **cookiep);
65extern int isa_teardown_intr(device_t bus, device_t child,
66			     struct resource *r, void *cookie);
67#endif
68
69