xref: /netbsd-src/sys/dev/acpi/joy_acpi.c (revision 3772555307d774424243e6d1cdc66aa160602c26)
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