1 | /* $NetBSD: joy_acpi.c,v 1.11 2011/11/23 23:07:31 jmcneill 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 joy(4) attachment based in lpt_acpi.c by Jared D. McNeill. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: joy_acpi.c,v 1.11 2011/11/23 23:07:31 jmcneill Exp $" ); |
34 | |
35 | #include <sys/param.h> |
36 | #include <sys/device.h> |
37 | #include <sys/systm.h> |
38 | |
39 | #include <dev/acpi/acpivar.h> |
40 | |
41 | #include <dev/ic/joyvar.h> |
42 | |
43 | static int joy_acpi_match(device_t, cfdata_t, void *); |
44 | static void joy_acpi_attach(device_t, device_t, void *); |
45 | |
46 | struct joy_acpi_softc { |
47 | struct joy_softc sc_joy; |
48 | kmutex_t sc_lock; |
49 | }; |
50 | |
51 | CFATTACH_DECL_NEW(joy_acpi, sizeof(struct joy_acpi_softc), joy_acpi_match, |
52 | joy_acpi_attach, NULL, NULL); |
53 | |
54 | /* |
55 | * Supported device IDs |
56 | */ |
57 | |
58 | static const char * const joy_acpi_ids[] = { |
59 | "PNPB02F" , /* Joystick/Game port */ |
60 | NULL |
61 | }; |
62 | |
63 | /* |
64 | * joy_acpi_match: autoconf(9) match routine |
65 | */ |
66 | static int |
67 | joy_acpi_match(device_t parent, cfdata_t match, void *aux) |
68 | { |
69 | struct acpi_attach_args *aa = aux; |
70 | |
71 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
72 | return 0; |
73 | |
74 | return acpi_match_hid(aa->aa_node->ad_devinfo, joy_acpi_ids); |
75 | } |
76 | |
77 | /* |
78 | * joy_acpi_attach: autoconf(9) attach routine |
79 | */ |
80 | static void |
81 | joy_acpi_attach(device_t parent, device_t self, void *aux) |
82 | { |
83 | struct joy_acpi_softc *asc = device_private(self); |
84 | struct joy_softc *sc = &asc->sc_joy; |
85 | struct acpi_attach_args *aa = aux; |
86 | struct acpi_resources res; |
87 | struct acpi_io *io; |
88 | ACPI_STATUS rv; |
89 | |
90 | sc->sc_dev = self; |
91 | |
92 | /* parse resources */ |
93 | rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS" , |
94 | &res, &acpi_resource_parse_ops_default); |
95 | if (ACPI_FAILURE(rv)) |
96 | return; |
97 | |
98 | /* find our i/o registers */ |
99 | io = acpi_res_io(&res, 0); |
100 | if (io == NULL) { |
101 | aprint_error_dev(self, |
102 | "unable to find i/o register resource\n" ); |
103 | goto out; |
104 | } |
105 | |
106 | sc->sc_iot = aa->aa_iot; |
107 | if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length, |
108 | 0, &sc->sc_ioh)) { |
109 | aprint_error_dev(self, "can't map i/o space\n" ); |
110 | goto out; |
111 | } |
112 | |
113 | mutex_init(&asc->sc_lock, MUTEX_DEFAULT, IPL_NONE); |
114 | sc->sc_lock = &asc->sc_lock; |
115 | |
116 | joyattach(sc); |
117 | |
118 | out: |
119 | acpi_resource_cleanup(&res); |
120 | } |
121 | |