joy_acpi.c revision 1.6 
1/* $NetBSD: joy_acpi.c,v 1.6 2007/10/06 07:21:04 xtraeme 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 1.6 2007/10/06 07:21:04 xtraeme Exp $");
34
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/errno.h>
38#include <sys/ioctl.h>
39#include <sys/device.h>
40#include <sys/proc.h>
41
42#include <machine/bus.h>
43
44#include <dev/acpi/acpica.h>
45#include <dev/acpi/acpireg.h>
46#include <dev/acpi/acpivar.h>
47
48#include <dev/ic/joyvar.h>
49
50static int	joy_acpi_match(struct device *, struct cfdata *, void *);
51static void	joy_acpi_attach(struct device *, struct device *, void *);
52
53struct joy_acpi_softc {
54	struct joy_softc sc_joy;
55};
56
57CFATTACH_DECL(joy_acpi, sizeof(struct joy_acpi_softc), joy_acpi_match,
58    joy_acpi_attach, NULL, NULL);
59
60/*
61 * Supported device IDs
62 */
63
64static const char * const joy_acpi_ids[] = {
65	"PNPB02F",	/* Joystick/Game port */
66	NULL
67};
68
69/*
70 * joy_acpi_match: autoconf(9) match routine
71 */
72static int
73joy_acpi_match(struct device *parent, struct cfdata *match,
74    void *aux)
75{
76	struct acpi_attach_args *aa = aux;
77
78	if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
79		return 0;
80
81	return acpi_match_hid(aa->aa_node->ad_devinfo, joy_acpi_ids);
82}
83
84/*
85 * joy_acpi_attach: autoconf(9) attach routine
86 */
87static void
88joy_acpi_attach(struct device *parent, struct device *self, void *aux)
89{
90	struct joy_acpi_softc *asc = (struct joy_acpi_softc *)self;
91	struct joy_softc *sc = &asc->sc_joy;
92	struct acpi_attach_args *aa = aux;
93	struct acpi_resources res;
94	struct acpi_io *io;
95	ACPI_STATUS rv;
96
97	aprint_naive("\n");
98	aprint_normal("\n");
99
100	/* parse resources */
101	rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node->ad_handle, "_CRS",
102	    &res, &acpi_resource_parse_ops_default);
103	if (ACPI_FAILURE(rv))
104		return;
105
106	/* find our i/o registers */
107	io = acpi_res_io(&res, 0);
108	if (io == NULL) {
109		aprint_error("%s: unable to find i/o register resource\n",
110		    sc->sc_dev.dv_xname);
111		goto out;
112	}
113
114	sc->sc_iot = aa->aa_iot;
115	if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length,
116		    0, &sc->sc_ioh)) {
117		aprint_error("%s: can't map i/o space\n", sc->sc_dev.dv_xname);
118		goto out;
119	}
120
121	joyattach(sc);
122
123 out:
124	acpi_resource_cleanup(&res);
125}
126