1 /* $NetBSD: joy_acpi.c,v 1.12 2021/01/29 15:49:55 thorpej 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 1.12 2021/01/29 15:49:55 thorpej 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 struct device_compatible_entry compat_data[] = {
59 { .compat = "PNPB02F" }, /* Joystick/Game port */
60 DEVICE_COMPAT_EOL
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 return acpi_compatible_match(aa, compat_data);
72 }
73
74 /*
75 * joy_acpi_attach: autoconf(9) attach routine
76 */
77 static void
joy_acpi_attach(device_t parent,device_t self,void * aux)78 joy_acpi_attach(device_t parent, device_t self, void *aux)
79 {
80 struct joy_acpi_softc *asc = device_private(self);
81 struct joy_softc *sc = &asc->sc_joy;
82 struct acpi_attach_args *aa = aux;
83 struct acpi_resources res;
84 struct acpi_io *io;
85 ACPI_STATUS rv;
86
87 sc->sc_dev = self;
88
89 /* parse resources */
90 rv = acpi_resource_parse(sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
91 &res, &acpi_resource_parse_ops_default);
92 if (ACPI_FAILURE(rv))
93 return;
94
95 /* find our i/o registers */
96 io = acpi_res_io(&res, 0);
97 if (io == NULL) {
98 aprint_error_dev(self,
99 "unable to find i/o register resource\n");
100 goto out;
101 }
102
103 sc->sc_iot = aa->aa_iot;
104 if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length,
105 0, &sc->sc_ioh)) {
106 aprint_error_dev(self, "can't map i/o space\n");
107 goto out;
108 }
109
110 mutex_init(&asc->sc_lock, MUTEX_DEFAULT, IPL_NONE);
111 sc->sc_lock = &asc->sc_lock;
112
113 joyattach(sc);
114
115 out:
116 acpi_resource_cleanup(&res);
117 }
118