isa_common.h revision 60833 
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 * $FreeBSD: head/sys/isa/isa_common.h 60833 2000-05-23 20:41:01Z jake $
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 * PNP configurations are kept in a tailq.
40 */
41TAILQ_HEAD(isa_config_list, struct isa_config_entry);
42struct isa_config_entry {
43	TAILQ_ENTRY(struct isa_config_entry) ice_link;
44	int			ice_priority;
45	struct isa_config	ice_config;
46};
47
48/*
49 * The structure used to attach devices to the isa bus.
50 */
51struct isa_device {
52	struct resource_list	id_resources;
53	u_int32_t		id_vendorid; /* pnp vendor id */
54	u_int32_t		id_serial; /* pnp serial */
55	u_int32_t		id_logicalid; /* pnp logical device id */
56	u_int32_t		id_compatid; /* pnp compat device id */
57	struct isa_config_list	id_configs; /* pnp config alternatives */
58	isa_config_cb		*id_config_cb; /* callback function */
59	void			*id_config_arg;	/* callback argument */
60};
61
62#define DEVTOISA(dev)	((struct isa_device *) device_get_ivars(dev))
63
64/*
65 * These functions are architecture dependant.
66 */
67extern void isa_init(void);
68extern struct resource *isa_alloc_resource(device_t bus, device_t child,
69					   int type, int *rid,
70					   u_long start, u_long end,
71					   u_long count, u_int flags);
72extern int isa_release_resource(device_t bus, device_t child,
73				int type, int rid,
74				struct resource *r);
75
76/* XXX alphe declares these elsewhere */
77#ifndef __alpha__
78extern int isa_setup_intr(device_t bus, device_t child,
79			  struct resource *r, int flags,
80			  void (*ihand)(void *), void *arg, void **cookiep);
81extern int isa_teardown_intr(device_t bus, device_t child,
82			     struct resource *r, void *cookie);
83#endif
84
85