1/* $NetBSD: spic_acpi.c,v 1.6 2010/03/05 14:00:17 jruoho Exp $ */
2
3/*
4 * Copyright (c) 2002 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Lennart Augustsson (lennart@augustsson.net).
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: spic_acpi.c,v 1.6 2010/03/05 14:00:17 jruoho Exp $");
34
35#include <sys/param.h>
36#include <sys/device.h>
37#include <sys/systm.h>
38
39#include <dev/acpi/acpireg.h>
40#include <dev/acpi/acpivar.h>
41
42#include <dev/ic/spicvar.h>
43
44#define _COMPONENT ACPI_RESOURCE_COMPONENT
45ACPI_MODULE_NAME ("spic_acpi")
46
47struct spic_acpi_softc {
48 struct spic_softc sc_spic; /* spic device */
49
50 struct acpi_devnode *sc_node; /* our ACPI devnode */
51
52 void *sc_ih;
53};
54
55static const char * const spic_acpi_ids[] = {
56 "SNY6001",
57 NULL
58};
59
60static int spic_acpi_match(device_t, cfdata_t, void *);
61static void spic_acpi_attach(device_t, device_t, void *);
62
63CFATTACH_DECL_NEW(spic_acpi, sizeof(struct spic_acpi_softc),
64 spic_acpi_match, spic_acpi_attach, NULL, NULL);
65
66
67static int
68spic_acpi_match(device_t parent, cfdata_t match, void *aux)
69{
70 struct acpi_attach_args *aa = aux;
71
72 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
73 return (0);
74
75 return (acpi_match_hid(aa->aa_node->ad_devinfo, spic_acpi_ids));
76}
77
78static void
79spic_acpi_attach(device_t parent, device_t self, void *aux)
80{
81 struct spic_acpi_softc *sc = device_private(self);
82 struct acpi_attach_args *aa = aux;
83 struct acpi_io *io;
84 struct acpi_irq *irq;
85 struct acpi_resources res;
86
87 ACPI_STATUS rv;
88
89 sc->sc_spic.sc_dev = self;
90 sc->sc_node = aa->aa_node;
91
92 /* Parse our resources. */
93 rv = acpi_resource_parse(self, sc->sc_node->ad_handle,
94 "_CRS", &res, &acpi_resource_parse_ops_default);
95 if (ACPI_FAILURE(rv))
96 return;
97
98 sc->sc_spic.sc_iot = aa->aa_iot;
99 io = acpi_res_io(&res, 0);
100 if (io == NULL) {
101 aprint_error_dev(self, "unable to find io resource\n");
102 goto out;
103 }
104 if (bus_space_map(sc->sc_spic.sc_iot, io->ar_base, io->ar_length,
105 0, &sc->sc_spic.sc_ioh) != 0) {
106 aprint_error_dev(self, "unable to map data register\n");
107 goto out;
108 }
109 irq = acpi_res_irq(&res, 0);
110 if (irq == NULL) {
111 aprint_error_dev(self, "unable to find irq resource\n");
112 /* XXX unmap */
113 goto out;
114 }
115#if 0
116 sc->sc_ih = isa_intr_establish(NULL, irq->ar_irq,
117 IST_EDGE, IPL_TTY, spic_intr, sc);
118#endif
119
120 if (!pmf_device_register(self, spic_suspend, spic_resume))
121 aprint_error_dev(self, "couldn't establish power handler\n");
122 else
123 pmf_class_input_register(self);
124
125 spic_attach(&sc->sc_spic);
126 out:
127 acpi_resource_cleanup(&res);
128}
129