1 | /* $NetBSD: attimer_acpi.c,v 1.14 2010/03/05 14:00:17 jruoho Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2005 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Quentin Garnier. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | /* |
33 | * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca> |
34 | * All rights reserved. |
35 | * |
36 | * Redistribution and use in source and binary forms, with or without |
37 | * modification, are permitted provided that the following conditions |
38 | * are met: |
39 | * 1. Redistributions of source code must retain the above copyright |
40 | * notice, this list of conditions and the following disclaimer. |
41 | * 2. The name of the author may not be used to endorse or promote products |
42 | * derived from this software without specific prior written permission. |
43 | * |
44 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
45 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
46 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
47 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
48 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
49 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
50 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
51 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
52 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
53 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
54 | * SUCH DAMAGE. |
55 | */ |
56 | |
57 | /* |
58 | * ACPI attimer(4) attachment based on lpt_acpi.c by Jared D. McNeill. |
59 | */ |
60 | |
61 | #include <sys/cdefs.h> |
62 | __KERNEL_RCSID(0, "$NetBSD: attimer_acpi.c,v 1.14 2010/03/05 14:00:17 jruoho Exp $" ); |
63 | |
64 | #include <sys/param.h> |
65 | #include <sys/device.h> |
66 | #include <sys/systm.h> |
67 | |
68 | #include <dev/acpi/acpivar.h> |
69 | |
70 | #include <dev/ic/attimervar.h> |
71 | |
72 | static int attimer_acpi_match(device_t, cfdata_t, void *); |
73 | static void attimer_acpi_attach(device_t, device_t, void *); |
74 | |
75 | CFATTACH_DECL3_NEW(attimer_acpi, sizeof(struct attimer_softc), |
76 | attimer_acpi_match, attimer_acpi_attach, attimer_detach, NULL, NULL, NULL, |
77 | DVF_DETACH_SHUTDOWN); |
78 | |
79 | /* |
80 | * Supported device IDs |
81 | */ |
82 | |
83 | static const char * const attimer_acpi_ids[] = { |
84 | "PNP0100" , /* AT Timer */ |
85 | NULL |
86 | }; |
87 | |
88 | /* |
89 | * attimer_acpi_match: autoconf(9) match routine |
90 | */ |
91 | static int |
92 | attimer_acpi_match(device_t parent, cfdata_t match, void *aux) |
93 | { |
94 | struct acpi_attach_args *aa = aux; |
95 | |
96 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
97 | return 0; |
98 | |
99 | return acpi_match_hid(aa->aa_node->ad_devinfo, attimer_acpi_ids); |
100 | } |
101 | |
102 | /* |
103 | * attimer_acpi_attach: autoconf(9) attach routine |
104 | */ |
105 | static void |
106 | attimer_acpi_attach(device_t parent, device_t self, void *aux) |
107 | { |
108 | struct attimer_softc *sc = device_private(self); |
109 | struct acpi_attach_args *aa = aux; |
110 | struct acpi_resources res; |
111 | struct acpi_io *io; |
112 | ACPI_STATUS rv; |
113 | |
114 | sc->sc_dev = self; |
115 | |
116 | /* parse resources */ |
117 | rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS" , |
118 | &res, &acpi_resource_parse_ops_default); |
119 | if (ACPI_FAILURE(rv)) |
120 | return; |
121 | |
122 | /* find our i/o registers */ |
123 | io = acpi_res_io(&res, 0); |
124 | if (io == NULL) { |
125 | aprint_error_dev(self, |
126 | "unable to find i/o register resource\n" ); |
127 | goto out; |
128 | } |
129 | |
130 | sc->sc_iot = aa->aa_iot; |
131 | sc->sc_size = io->ar_length; |
132 | if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size, |
133 | 0, &sc->sc_ioh) != 0) { |
134 | aprint_error_dev(self, "can't map i/o space\n" ); |
135 | goto out; |
136 | } |
137 | |
138 | attimer_attach(sc); |
139 | |
140 | out: |
141 | acpi_resource_cleanup(&res); |
142 | } |
143 | |