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