wb_acpi.c revision 1.2.4.1
1 /* $NetBSD: wb_acpi.c,v 1.2.4.1 2011/03/05 20:53:04 rmind Exp $ */ 2 3 /* 4 * Copyright (c) 2009 Jared D. McNeill <jmcneill (at) 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 1.2.4.1 2011/03/05 20:53:04 rmind 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
Indexes created Sun Nov 02 23:10:09 GMT 2025