2 * Copyright (c) 1999 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
26 * $FreeBSD: src/sys/isa/isahint.c,v 1.8.2.1 2001/03/21 11:18:25 nyan Exp $
27 * $DragonFly: src/sys/bus/isa/isahint.c,v 1.3 2003/08/07 21:16:46 dillon Exp $
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
34 #include <sys/module.h>
36 #include <machine/resource.h>
39 isahint_add_device(device_t parent, const char *name, int unit)
42 int sensitive, start, count, t;
45 /* device-specific flag overrides any wildcard */
47 if (resource_int_value(name, unit, "sensitive", &sensitive) != 0)
48 resource_int_value(name, -1, "sensitive", &sensitive);
51 order = ISA_ORDER_SENSITIVE;
53 order = ISA_ORDER_SPECULATIVE;
55 child = BUS_ADD_CHILD(parent, order, name, unit);
61 resource_int_value(name, unit, "port", &start);
62 resource_int_value(name, unit, "portsize", &count);
63 if (start > 0 || count > 0)
64 bus_set_resource(child, SYS_RES_IOPORT, 0, start, count);
68 resource_int_value(name, unit, "maddr", &start);
69 resource_int_value(name, unit, "msize", &count);
70 if (start > 0 || count > 0)
71 bus_set_resource(child, SYS_RES_MEMORY, 0, start, count);
73 if (resource_int_value(name, unit, "irq", &start) == 0 && start > 0)
74 bus_set_resource(child, SYS_RES_IRQ, 0, start, 1);
76 if (resource_int_value(name, unit, "drq", &start) == 0 && start >= 0)
77 bus_set_resource(child, SYS_RES_DRQ, 0, start, 1);
79 if (resource_int_value(name, unit, "flags", &t) == 0)
80 device_set_flags(child, t);
82 if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0)
83 device_disable(child);
87 isahint_identify(driver_t *driver, device_t parent)
90 static char buf[] = "isaXXX";
93 * Add all devices configured to be attached to parent.
95 sprintf(buf, "isa%d", device_get_unit(parent));
96 for (i = resource_query_string(-1, "at", buf);
98 i = resource_query_string(i, "at", buf)) {
99 if (strcmp(resource_query_name(i), "atkbd") == 0)
100 continue; /* old GENERIC kludge */
101 isahint_add_device(parent,
102 resource_query_name(i),
103 resource_query_unit(i));
109 for (i = resource_query_string(-1, "at", "isa");
111 i = resource_query_string(i, "at", "isa")) {
112 if (strcmp(resource_query_name(i), "atkbd") == 0)
113 continue; /* old GENERIC kludge */
114 isahint_add_device(parent,
115 resource_query_name(i),
116 resource_query_unit(i));
120 static device_method_t isahint_methods[] = {
121 /* Device interface */
122 DEVMETHOD(device_identify, isahint_identify),
127 static driver_t isahint_driver = {
133 static devclass_t hint_devclass;
135 DRIVER_MODULE(isahint, isa, isahint_driver, hint_devclass, 0, 0);