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
joy_acpi_match(device_t parent,cfdata_t match,void * aux)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
joy_acpi_attach(device_t parent,device_t self,void * aux)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