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 |
46 | ACPI_MODULE_NAME ("wb_acpi" ) |
47 | |
48 | static int wb_acpi_match(device_t, cfdata_t, void *); |
49 | static void wb_acpi_attach(device_t, device_t, void *); |
50 | static int wb_acpi_detach(device_t, int); |
51 | static bool wb_acpi_suspend(device_t, const pmf_qual_t *); |
52 | static bool wb_acpi_resume(device_t, const pmf_qual_t *); |
53 | |
54 | struct 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 | |
64 | CFATTACH_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 | |
71 | static 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 | |
79 | static int |
80 | wb_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 | |
90 | static void |
91 | wb_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 | |
150 | cleanup: |
151 | acpi_resource_cleanup(&res); |
152 | } |
153 | |
154 | static int |
155 | wb_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 | |
179 | static bool |
180 | wb_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 | |
187 | static bool |
188 | wb_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 | |