1/* $NetBSD: wb_acpi.c,v 1.5 2010/08/19 18:37:38 jmcneill Exp $ */
2
3/*
4 * Copyright (c) 2009 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#include <sys/cdefs.h>
29__KERNEL_RCSID(0, "$NetBSD: wb_acpi.c,v 1.5 2010/08/19 18:37:38 jmcneill Exp $");
30
31#include <sys/param.h>
32#include <sys/device.h>
33#include <sys/systm.h>
34
35#include <dev/acpi/acpireg.h>
36#include <dev/acpi/acpivar.h>
37
38#include <dev/ic/w83l518dvar.h>
39#include <dev/ic/w83l518dreg.h>
40
41#include <dev/isa/isadmavar.h>
42
43#include <dev/sdmmc/sdmmcvar.h>
44
45#define _COMPONENT ACPI_RESOURCE_COMPONENT
46ACPI_MODULE_NAME ("wb_acpi")
47
48static int wb_acpi_match(device_t, cfdata_t, void *);
49static void wb_acpi_attach(device_t, device_t, void *);
50static int wb_acpi_detach(device_t, int);
51static bool wb_acpi_suspend(device_t, const pmf_qual_t *);
52static bool wb_acpi_resume(device_t, const pmf_qual_t *);
53
54struct wb_acpi_softc {
55 struct wb_softc sc_wb;
56 isa_chipset_tag_t sc_ic;
57 void *sc_ih;
58 int sc_ioh_length;
59
60 ACPI_HANDLE sc_crs, sc_srs;
61 ACPI_BUFFER sc_crs_buffer;
62};
63
64CFATTACH_DECL_NEW(wb_acpi, sizeof(struct wb_acpi_softc),
65 wb_acpi_match,
66 wb_acpi_attach,
67 wb_acpi_detach,
68 NULL
69);
70
71static const char * const wb_acpi_ids[] = {
72#if notyet
73 "WEC0515", /* Memory Stick interface */
74#endif
75 "WEC0517", /* SD Memory Card interface */
76 NULL
77};
78
79static int
80wb_acpi_match(device_t parent, cfdata_t match, void *opaque)
81{
82 struct acpi_attach_args *aa = opaque;
83
84 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
85 return 0;
86
87 return acpi_match_hid(aa->aa_node->ad_devinfo, wb_acpi_ids);
88}
89
90static void
91wb_acpi_attach(device_t parent, device_t self, void *opaque)
92{
93 struct wb_acpi_softc *sc = device_private(self);
94 struct acpi_attach_args *aa = opaque;
95 struct acpi_resources res;
96 struct acpi_io *io;
97 struct acpi_irq *irq;
98 bus_space_handle_t ioh;
99 ACPI_STATUS rv;
100
101 sc->sc_ic = aa->aa_ic;
102
103 rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS",
104 &res, &acpi_resource_parse_ops_default);
105 if (ACPI_FAILURE(rv))
106 return;
107
108 AcpiGetHandle(aa->aa_node->ad_handle, "_CRS", &sc->sc_crs);
109 AcpiGetHandle(aa->aa_node->ad_handle, "_SRS", &sc->sc_srs);
110 if (sc->sc_crs && sc->sc_srs) {
111 sc->sc_crs_buffer.Pointer = NULL;
112 sc->sc_crs_buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER;
113 rv = AcpiGetCurrentResources(sc->sc_crs, &sc->sc_crs_buffer);
114 if (ACPI_FAILURE(rv))
115 sc->sc_crs = sc->sc_srs = NULL;
116 }
117
118 io = acpi_res_io(&res, 0);
119 irq = acpi_res_irq(&res, 0);
120 if (io == NULL || irq == NULL) {
121 aprint_error_dev(self, "incomplete resources\n");
122 goto cleanup;
123 }
124
125 if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 0, &ioh)) {
126 aprint_error_dev(self, "couldn't map registers\n");
127 goto cleanup;
128 }
129 sc->sc_ioh_length = io->ar_length;
130
131 sc->sc_ih = isa_intr_establish(sc->sc_ic, irq->ar_irq,
132 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL,
133 IPL_SDMMC, wb_intr, &sc->sc_wb);
134 if (sc->sc_ih == NULL) {
135 aprint_error_dev(self,
136 "couldn't establish interrupt handler\n");
137 goto cleanup;
138 }
139
140 sc->sc_wb.wb_dev = self;
141 sc->sc_wb.wb_type = WB_DEVNO_SD;
142 sc->sc_wb.wb_iot = aa->aa_iot;
143 sc->sc_wb.wb_ioh = ioh;
144 sc->sc_wb.wb_irq = irq->ar_irq;
145 sc->sc_wb.wb_base = io->ar_base;
146 wb_attach(&sc->sc_wb);
147
148 pmf_device_register(self, wb_acpi_suspend, wb_acpi_resume);
149
150cleanup:
151 acpi_resource_cleanup(&res);
152}
153
154static int
155wb_acpi_detach(device_t self, int flags)
156{
157 struct wb_acpi_softc *sc = device_private(self);
158 int rv;
159
160 pmf_device_deregister(self);
161
162 if (sc->sc_crs_buffer.Pointer)
163 ACPI_FREE(sc->sc_crs_buffer.Pointer);
164
165 rv = wb_detach(&sc->sc_wb, flags);
166 if (rv)
167 return rv;
168
169 if (sc->sc_ih)
170 isa_intr_disestablish(sc->sc_ic, sc->sc_ih);
171
172 if (sc->sc_ioh_length > 0)
173 bus_space_unmap(sc->sc_wb.wb_iot, sc->sc_wb.wb_ioh,
174 sc->sc_ioh_length);
175
176 return 0;
177}
178
179static bool
180wb_acpi_suspend(device_t self, const pmf_qual_t *qual)
181{
182 struct wb_acpi_softc *sc = device_private(self);
183
184 return wb_suspend(&sc->sc_wb);
185}
186
187static bool
188wb_acpi_resume(device_t self, const pmf_qual_t *qual)
189{
190 struct wb_acpi_softc *sc = device_private(self);
191 ACPI_STATUS rv;
192
193 if (sc->sc_crs && sc->sc_srs) {
194 rv = AcpiSetCurrentResources(sc->sc_srs, &sc->sc_crs_buffer);
195 if (ACPI_FAILURE(rv))
196 printf("%s: _SRS failed: %s\n",
197 device_xname(self), AcpiFormatException(rv));
198 }
199
200 return wb_resume(&sc->sc_wb);
201}
202