2 * Copyright (c) 2009 Marcel Moolenaar
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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.
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
26 #include <sys/cdefs.h>
27 __FBSDID("$FreeBSD$");
29 #include <sys/param.h>
31 #include <sys/malloc.h>
32 #include <machine/bus.h>
35 #include <machine/intr_machdep.h>
36 #include <machine/resource.h>
38 #include <isa/isareg.h>
39 #include <isa/isavar.h>
40 #include <isa/isa_common.h>
43 isa_init(device_t dev)
48 isa_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)
51 struct isa_device* idev = DEVTOISA(child);
52 struct resource_list *rl = &idev->id_resources;
53 int isdefault, passthrough, rids;
55 isdefault = (start == 0UL && end == ~0UL) ? 1 : 0;
56 passthrough = (device_get_parent(child) != bus) ? 1 : 0;
58 if (!passthrough && !isdefault &&
59 resource_list_find(rl, type, *rid) == NULL) {
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;
66 if (*rid < 0 || *rid >= rids)
69 resource_list_add(rl, type, *rid, start, end, count);
72 return (resource_list_alloc(rl, bus, child, type, rid, start, end,
77 isa_release_resource(device_t bus, device_t child, int type, int rid,
80 struct isa_device* idev = DEVTOISA(child);
81 struct resource_list *rl = &idev->id_resources;
83 return (resource_list_release(rl, bus, child, type, rid, r));