1/*-
2 * Copyright (c) 2009 Marcel Moolenaar
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
18 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
20 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
21 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD$");
28
29#include <sys/param.h>
30#include <sys/bus.h>
31#include <sys/malloc.h>
32#include <machine/bus.h>
33#include <sys/rman.h>
34
35#include <machine/intr_machdep.h>
36#include <machine/resource.h>
37
38#include <isa/isareg.h>
39#include <isa/isavar.h>
40#include <isa/isa_common.h>
41
42void
43isa_init(device_t dev)
44{
45}
46
47struct resource *
48isa_alloc_resource(device_t bus, device_t child, int type, int *rid,
49    u_long start, u_long end, u_long count, u_int flags)
50{
51	struct isa_device* idev = DEVTOISA(child);
52	struct resource_list *rl = &idev->id_resources;
53	int isdefault, passthrough, rids;
54
55	isdefault = (start == 0UL && end == ~0UL) ? 1 : 0;
56	passthrough = (device_get_parent(child) != bus) ? 1 : 0;
57
58	if (!passthrough && !isdefault &&
59	    resource_list_find(rl, type, *rid) == NULL) {
60		switch (type) {
61		case SYS_RES_IOPORT:	rids = ISA_PNP_NPORT; break;
62		case SYS_RES_IRQ:	rids = ISA_PNP_NIRQ; break;
63		case SYS_RES_MEMORY:	rids = ISA_PNP_NMEM; break;
64		default:		rids = 0; break;
65		}
66		if (*rid < 0 || *rid >= rids)
67			return (NULL);
68
69		resource_list_add(rl, type, *rid, start, end, count);
70	}
71
72	return (resource_list_alloc(rl, bus, child, type, rid, start, end,
73	    count, flags));
74}
75
76int
77isa_release_resource(device_t bus, device_t child, int type, int rid,
78    struct resource *r)
79{
80	struct isa_device* idev = DEVTOISA(child);
81	struct resource_list *rl = &idev->id_resources;
82
83	return (resource_list_release(rl, bus, child, type, rid, r));
84}
85