1 | /* $NetBSD: ug_acpi.c,v 1.6 2010/03/05 14:00:17 jruoho Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2007 Mihai Chelaru <kefren@netbsd.ro> |
5 | * All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. The name of the author may not be used to endorse or promote products |
13 | * derived from this software without specific prior written permission. |
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/cdefs.h> |
29 | __KERNEL_RCSID(0, "$NetBSD: ug_acpi.c,v 1.6 2010/03/05 14:00:17 jruoho Exp $" ); |
30 | |
31 | #include <sys/param.h> |
32 | #include <sys/device.h> |
33 | #include <sys/systm.h> |
34 | |
35 | #include <dev/acpi/acpivar.h> |
36 | |
37 | #include <dev/ic/ugreg.h> |
38 | #include <dev/ic/ugvar.h> |
39 | |
40 | /* autoconf(9) functions */ |
41 | static int ug_acpi_match(device_t, cfdata_t, void *); |
42 | static void ug_acpi_attach(device_t, device_t, void *); |
43 | |
44 | CFATTACH_DECL_NEW(ug_acpi, sizeof(struct ug_softc), ug_acpi_match, |
45 | ug_acpi_attach, NULL, NULL); |
46 | |
47 | /* |
48 | * Supported devices |
49 | * XXX: only uGuru 2005 for now |
50 | */ |
51 | |
52 | static const char* const ug_acpi_ids[] = { |
53 | "ABT2005" , /* uGuru 2005 */ |
54 | NULL |
55 | }; |
56 | |
57 | static int |
58 | ug_acpi_match(device_t parent, cfdata_t match, void *aux) |
59 | { |
60 | struct acpi_attach_args *aa = aux; |
61 | |
62 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
63 | return 0; |
64 | |
65 | return acpi_match_hid(aa->aa_node->ad_devinfo, ug_acpi_ids); |
66 | } |
67 | |
68 | static void |
69 | ug_acpi_attach(device_t parent, device_t self, void *aux) |
70 | { |
71 | struct ug_softc *sc = device_private(self); |
72 | struct acpi_attach_args *aa = aux; |
73 | struct acpi_resources res; |
74 | struct acpi_io *io; |
75 | bus_space_handle_t ioh; |
76 | ACPI_STATUS rv; |
77 | |
78 | /* parse resources */ |
79 | rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS" , |
80 | &res, &acpi_resource_parse_ops_default); |
81 | if (ACPI_FAILURE(rv)) |
82 | return; |
83 | |
84 | /* find our i/o registers */ |
85 | io = acpi_res_io(&res, 0); |
86 | if (io == NULL) { |
87 | aprint_error_dev(self, |
88 | "unable to find i/o register resource\n" ); |
89 | acpi_resource_cleanup(&res); |
90 | return; |
91 | } |
92 | |
93 | if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, |
94 | 0, &ioh)) { |
95 | aprint_error_dev(self, "can't map i/o space\n" ); |
96 | acpi_resource_cleanup(&res); |
97 | return; |
98 | } |
99 | |
100 | aprint_normal("%s" , device_xname(self)); |
101 | |
102 | sc->version = 2; /* uGuru 2005 */ |
103 | sc->sc_ioh = ioh; |
104 | sc->sc_iot = aa->aa_iot; |
105 | ug2_attach(self); |
106 | |
107 | acpi_resource_cleanup(&res); |
108 | } |
109 | |