xref: /dragonfly/sys/bus/isa/isa_common.h (revision d22a69a4)
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: src/sys/isa/isa_common.h,v 1.5 1999/09/07 08:42:47 dfr Exp $
27  * $DragonFly: src/sys/bus/isa/isa_common.h,v 1.4 2005/05/24 20:58:48 dillon Exp $
28  */
29 
30 /*
31  * Parts of the ISA bus implementation common to all architectures.
32  *
33  * Drivers must not depend on information in this file as it can change
34  * without notice.
35  */
36 
37 MALLOC_DECLARE(M_ISADEV);
38 
39 /*
40  * PNP configurations are kept in a tailq.
41  */
42 TAILQ_HEAD(isa_config_list, isa_config_entry);
43 struct isa_config_entry {
44 	TAILQ_ENTRY(isa_config_entry) ice_link;
45 	int			ice_priority;
46 	struct isa_config	ice_config;
47 };
48 
49 /*
50  * The structure used to attach devices to the isa bus.
51  */
52 struct isa_device {
53 	struct resource_list	id_resources;
54 	u_int32_t		id_vendorid; /* pnp vendor id */
55 	u_int32_t		id_serial; /* pnp serial */
56 	u_int32_t		id_logicalid; /* pnp logical device id */
57 	u_int32_t		id_compatid; /* pnp compat device id */
58 	struct isa_config_list	id_configs; /* pnp config alternatives */
59 	isa_config_cb		*id_config_cb; /* callback function */
60 	void			*id_config_arg;	/* callback argument */
61 };
62 
63 #define DEVTOISA(dev)	((struct isa_device *) device_get_ivars(dev))
64 
65 /*
66  * These functions are architecture dependant.
67  */
68 extern void isa_init(void);
69 extern struct resource *isa_alloc_resource(device_t bus, device_t child,
70 					   int type, int *rid,
71 					   u_long start, u_long end,
72 					   u_long count, u_int flags,
73 					   int cpuid);
74 extern int isa_release_resource(device_t bus, device_t child,
75 				int type, int rid,
76 				struct resource *r);
77 extern int isa_setup_intr(device_t bus, device_t child,
78 			  struct resource *r, int flags,
79 			  void (*ihand)(void *), void *arg,
80 			  void **cookiep, lwkt_serialize_t serializer);
81 extern int isa_teardown_intr(device_t bus, device_t child,
82 			     struct resource *r, void *cookie);
83