1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1999 Doug Rabson
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31/*
32 * Parts of the ISA bus implementation common to all architectures.
33 *
34 * Drivers must not depend on information in this file as it can change
35 * without notice.
36 */
37
38/*
39 * PNP configurations are kept in a tailq.
40 */
41TAILQ_HEAD(isa_config_list, isa_config_entry);
42struct isa_config_entry {
43	TAILQ_ENTRY(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	uint32_t		id_vendorid; /* pnp vendor id */
54	uint32_t		id_serial; /* pnp serial */
55	uint32_t		id_logicalid; /* pnp logical device id */
56	uint32_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	int			id_config_attr;	/* pnp config attributes */
61	int			id_pnpbios_handle; /* pnp handle, if any */
62	int			id_pnp_csn; /* pnp Card Number */
63	int			id_pnp_ldn; /* pnp Logical device on card */
64	int			id_order;
65};
66
67#define DEVTOISA(dev)	((struct isa_device *) device_get_ivars(dev))
68
69/*
70 * These functions are architecture dependent.
71 */
72extern void isa_init(device_t dev);
73extern struct resource *isa_alloc_resource(device_t bus, device_t child,
74    int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count,
75    u_int flags);
76extern int isa_release_resource(device_t bus, device_t child,
77    int type, int rid, struct resource *r);
78
79extern driver_t isa_driver;
80extern devclass_t isa_devclass;
81