1/* $NetBSD: pcppi_acpi.c,v 1.12 2010/03/05 14:00:17 jruoho 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 pcppi(4) attachment based on lpt_acpi.c by Jared D. McNeill.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: pcppi_acpi.c,v 1.12 2010/03/05 14:00:17 jruoho Exp $");
34
35#include <sys/param.h>
36#include <sys/device.h>
37
38#include <dev/acpi/acpivar.h>
39
40#include <dev/isa/pcppivar.h>
41
42static int pcppi_acpi_match(device_t, cfdata_t, void *);
43static void pcppi_acpi_attach(device_t, device_t, void *);
44
45struct pcppi_acpi_softc {
46 struct pcppi_softc sc_pcppi;
47};
48
49CFATTACH_DECL_NEW(pcppi_acpi, sizeof(struct pcppi_acpi_softc),
50 pcppi_acpi_match, pcppi_acpi_attach, pcppi_detach, NULL);
51
52/*
53 * Supported device IDs
54 */
55
56static const char * const pcppi_acpi_ids[] = {
57 "PNP0800", /* AT-style speaker sound */
58 NULL
59};
60
61/*
62 * pcppi_acpi_match: autoconf(9) match routine
63 */
64static int
65pcppi_acpi_match(device_t parent, cfdata_t match, void *aux)
66{
67 struct acpi_attach_args *aa = aux;
68
69 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
70 return 0;
71
72 return acpi_match_hid(aa->aa_node->ad_devinfo, pcppi_acpi_ids);
73}
74
75/*
76 * pcppi_acpi_attach: autoconf(9) attach routine
77 */
78static void
79pcppi_acpi_attach(device_t parent, device_t self, void *aux)
80{
81 struct pcppi_acpi_softc *asc = device_private(self);
82 struct pcppi_softc *sc = &asc->sc_pcppi;
83 struct acpi_attach_args *aa = aux;
84 struct acpi_resources res;
85 struct acpi_io *io;
86 ACPI_STATUS rv;
87
88 sc->sc_dv = self;
89
90 /* parse resources */
91 rv = acpi_resource_parse(sc->sc_dv, aa->aa_node->ad_handle, "_CRS",
92 &res, &acpi_resource_parse_ops_default);
93 if (ACPI_FAILURE(rv))
94 return;
95
96 /* find our i/o registers */
97 io = acpi_res_io(&res, 0);
98 if (io == NULL) {
99 aprint_error_dev(self,
100 "unable to find i/o register resource\n");
101 goto out;
102 }
103
104 sc->sc_iot = aa->aa_iot;
105 sc->sc_size = io->ar_length;
106 if (bus_space_map(sc->sc_iot, io->ar_base, sc->sc_size,
107 0, &sc->sc_ppi_ioh)) {
108 aprint_error_dev(self, "can't map i/o space\n");
109 goto out;
110 }
111
112 pcppi_attach(sc);
113
114 out:
115 acpi_resource_cleanup(&res);
116}
117