1 | /* $NetBSD: pcppi_acpi.c,v 1.12 2010/03/05 14:00:17 jruoho Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca> |
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 | /* |
29 | * ACPI pcppi(4) attachment based on lpt_acpi.c by Jared D. McNeill. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: pcppi_acpi.c,v 1.12 2010/03/05 14:00:17 jruoho Exp $" ); |
34 | |
35 | #include <sys/param.h> |
36 | #include <sys/device.h> |
37 | |
38 | #include <dev/acpi/acpivar.h> |
39 | |
40 | #include <dev/isa/pcppivar.h> |
41 | |
42 | static int pcppi_acpi_match(device_t, cfdata_t, void *); |
43 | static void pcppi_acpi_attach(device_t, device_t, void *); |
44 | |
45 | struct pcppi_acpi_softc { |
46 | struct pcppi_softc sc_pcppi; |
47 | }; |
48 | |
49 | CFATTACH_DECL_NEW(pcppi_acpi, sizeof(struct pcppi_acpi_softc), |
50 | pcppi_acpi_match, pcppi_acpi_attach, pcppi_detach, NULL); |
51 | |
52 | /* |
53 | * Supported device IDs |
54 | */ |
55 | |
56 | static const char * const pcppi_acpi_ids[] = { |
57 | "PNP0800" , /* AT-style speaker sound */ |
58 | NULL |
59 | }; |
60 | |
61 | /* |
62 | * pcppi_acpi_match: autoconf(9) match routine |
63 | */ |
64 | static int |
65 | pcppi_acpi_match(device_t parent, cfdata_t match, void *aux) |
66 | { |
67 | struct acpi_attach_args *aa = aux; |
68 | |
69 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
70 | return 0; |
71 | |
72 | return acpi_match_hid(aa->aa_node->ad_devinfo, pcppi_acpi_ids); |
73 | } |
74 | |
75 | /* |
76 | * pcppi_acpi_attach: autoconf(9) attach routine |
77 | */ |
78 | static void |
79 | pcppi_acpi_attach(device_t parent, device_t self, void *aux) |
80 | { |
81 | struct pcppi_acpi_softc *asc = device_private(self); |
82 | struct pcppi_softc *sc = &asc->sc_pcppi; |
83 | struct acpi_attach_args *aa = aux; |
84 | struct acpi_resources res; |
85 | struct acpi_io *io; |
86 | ACPI_STATUS rv; |
87 | |
88 | sc->sc_dv = self; |
89 | |
90 | /* parse resources */ |
91 | rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS" , |
92 | &res, &acpi_resource_parse_ops_default); |
93 | if (ACPI_FAILURE(rv)) |
94 | return; |
95 | |
96 | /* find our i/o registers */ |
97 | io = acpi_res_io(&res, 0); |
98 | if (io == NULL) { |
99 | aprint_error_dev(self, |
100 | "unable to find i/o register resource\n" ); |
101 | goto out; |
102 | } |
103 | |
104 | sc->sc_iot = aa->aa_iot; |
105 | sc->sc_size = io->ar_length; |
106 | if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size, |
107 | 0, &sc->sc_ppi_ioh)) { |
108 | aprint_error_dev(self, "can't map i/o space\n" ); |
109 | goto out; |
110 | } |
111 | |
112 | pcppi_attach(sc); |
113 | |
114 | out: |
115 | acpi_resource_cleanup(&res); |
116 | } |
117 | |