1 /* $NetBSD: spic_acpi.c,v 1.9 2021/01/29 15:49:55 thorpej 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 1.9 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/acpireg.h>
40 #include <dev/acpi/acpivar.h>
41 #include <dev/acpi/acpi_intr.h>
42
43 #include <dev/ic/spicvar.h>
44
45 #define _COMPONENT ACPI_RESOURCE_COMPONENT
46 ACPI_MODULE_NAME ("spic_acpi")
47
48 struct spic_acpi_softc {
49 struct spic_softc sc_spic; /* spic device */
50
51 struct acpi_devnode *sc_node; /* our ACPI devnode */
52
53 void *sc_ih;
54 };
55
56 static const struct device_compatible_entry compat_data[] = {
57 { .compat = "SNY6001" },
58 DEVICE_COMPAT_EOL
59 };
60
61 static int spic_acpi_match(device_t, cfdata_t, void *);
62 static void spic_acpi_attach(device_t, device_t, void *);
63
64 CFATTACH_DECL_NEW(spic_acpi, sizeof(struct spic_acpi_softc),
65 spic_acpi_match, spic_acpi_attach, NULL, NULL);
66
67
68 static int
spic_acpi_match(device_t parent,cfdata_t match,void * aux)69 spic_acpi_match(device_t parent, cfdata_t match, void *aux)
70 {
71 struct acpi_attach_args *aa = aux;
72
73 return acpi_compatible_match(aa, compat_data);
74 }
75
76 static void
spic_acpi_attach(device_t parent,device_t self,void * aux)77 spic_acpi_attach(device_t parent, device_t self, void *aux)
78 {
79 struct spic_acpi_softc *sc = device_private(self);
80 struct acpi_attach_args *aa = aux;
81 struct acpi_io *io;
82 struct acpi_irq *irq;
83 struct acpi_resources res;
84
85 ACPI_STATUS rv;
86
87 sc->sc_spic.sc_dev = self;
88 sc->sc_node = aa->aa_node;
89
90 /* Parse our resources. */
91 rv = acpi_resource_parse(self, sc->sc_node->ad_handle,
92 "_CRS", &res, &acpi_resource_parse_ops_default);
93 if (ACPI_FAILURE(rv))
94 return;
95
96 sc->sc_spic.sc_iot = aa->aa_iot;
97 io = acpi_res_io(&res, 0);
98 if (io == NULL) {
99 aprint_error_dev(self, "unable to find io resource\n");
100 goto out;
101 }
102 if (bus_space_map(sc->sc_spic.sc_iot, io->ar_base, io->ar_length,
103 0, &sc->sc_spic.sc_ioh) != 0) {
104 aprint_error_dev(self, "unable to map data register\n");
105 goto out;
106 }
107 irq = acpi_res_irq(&res, 0);
108 if (irq == NULL) {
109 aprint_error_dev(self, "unable to find irq resource\n");
110 /* XXX unmap */
111 goto out;
112 }
113 #if 0
114 sc->sc_ih = acpi_intr_establish(self,
115 (uint64_t)(uintptr_t)aa->aa_node->ad_handle,
116 IPL_TTY, false, spic_intr, sc, device_xname(self));
117 if (sc->sc_ih == NULL) {
118 aprint_error_dev(self, "unable to establish interrupt\n");
119 goto out;
120 }
121 #endif
122
123 if (!pmf_device_register(self, spic_suspend, spic_resume))
124 aprint_error_dev(self, "couldn't establish power handler\n");
125 else
126 pmf_class_input_register(self);
127
128 spic_attach(&sc->sc_spic);
129 out:
130 acpi_resource_cleanup(&res);
131 }
132