wb_acpi.c revision 1.4
1 /* $NetBSD: wb_acpi.c,v 1.4 2010/08/19 18:30:33 jmcneill 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 1.4 2010/08/19 18:30:33 jmcneill Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/device.h> 33 #include <sys/systm.h> 34 35 #include <dev/acpi/acpivar.h> 36 37 #include <dev/ic/w83l518dvar.h> 38 #include <dev/ic/w83l518dreg.h> 39 40 #include <dev/isa/isadmavar.h> 41 42 #include <dev/sdmmc/sdmmcvar.h> 43 44 #define _COMPONENT ACPI_RESOURCE_COMPONENT 45 ACPI_MODULE_NAME ("wb_acpi") 46 47 static int wb_acpi_match(device_t, cfdata_t, void *); 48 static void wb_acpi_attach(device_t, device_t, void *); 49 static int wb_acpi_detach(device_t, int); 50 static bool wb_acpi_suspend(device_t, const pmf_qual_t *); 51 static bool wb_acpi_resume(device_t, const pmf_qual_t *); 52 53 struct wb_acpi_softc { 54 struct wb_softc sc_wb; 55 isa_chipset_tag_t sc_ic; 56 void *sc_ih; 57 int sc_ioh_length; 58 59 ACPI_HANDLE sc_crs, sc_srs; 60 ACPI_BUFFER sc_crs_buffer; 61 }; 62 63 CFATTACH_DECL_NEW(wb_acpi, sizeof(struct wb_acpi_softc), 64 wb_acpi_match, 65 wb_acpi_attach, 66 wb_acpi_detach, 67 NULL 68 ); 69 70 static const char * const wb_acpi_ids[] = { 71 #if notyet 72 "WEC0515", /* Memory Stick interface */ 73 #endif 74 "WEC0517", /* SD Memory Card interface */ 75 NULL 76 }; 77 78 static int 79 wb_acpi_match(device_t parent, cfdata_t match, void *opaque) 80 { 81 struct acpi_attach_args *aa = opaque; 82 83 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 84 return 0; 85 86 return acpi_match_hid(aa->aa_node->ad_devinfo, wb_acpi_ids); 87 } 88 89 static void 90 wb_acpi_attach(device_t parent, device_t self, void *opaque) 91 { 92 struct wb_acpi_softc *sc = device_private(self); 93 struct acpi_attach_args *aa = opaque; 94 struct acpi_resources res; 95 struct acpi_io *io; 96 struct acpi_irq *irq; 97 bus_space_handle_t ioh; 98 ACPI_STATUS rv; 99 100 sc->sc_ic = aa->aa_ic; 101 102 rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 103 &res, &acpi_resource_parse_ops_default); 104 if (ACPI_FAILURE(rv)) 105 return; 106 107 AcpiGetHandle(aa->aa_node->ad_handle, "_CRS", &sc->sc_crs); 108 AcpiGetHandle(aa->aa_node->ad_handle, "_SRS", &sc->sc_srs); 109 if (sc->sc_crs && sc->sc_srs) { 110 sc->sc_crs_buffer.Pointer = NULL; 111 sc->sc_crs_buffer.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 112 rv = AcpiGetCurrentResources(sc->sc_crs, &sc->sc_crs_buffer); 113 if (ACPI_FAILURE(rv)) 114 sc->sc_crs = sc->sc_srs = NULL; 115 } 116 117 io = acpi_res_io(&res, 0); 118 irq = acpi_res_irq(&res, 0); 119 if (io == NULL || irq == NULL) { 120 aprint_error_dev(self, "incomplete resources\n"); 121 goto cleanup; 122 } 123 124 if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 0, &ioh)) { 125 aprint_error_dev(self, "couldn't map registers\n"); 126 goto cleanup; 127 } 128 sc->sc_ioh_length = io->ar_length; 129 130 sc->sc_ih = isa_intr_establish(sc->sc_ic, irq->ar_irq, 131 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 132 IPL_SDMMC, wb_intr, &sc->sc_wb); 133 if (sc->sc_ih == NULL) { 134 aprint_error_dev(self, 135 "couldn't establish interrupt handler\n"); 136 goto cleanup; 137 } 138 139 sc->sc_wb.wb_dev = self; 140 sc->sc_wb.wb_type = WB_DEVNO_SD; 141 sc->sc_wb.wb_iot = aa->aa_iot; 142 sc->sc_wb.wb_ioh = ioh; 143 sc->sc_wb.wb_irq = irq->ar_irq; 144 sc->sc_wb.wb_base = io->ar_base; 145 wb_attach(&sc->sc_wb); 146 147 pmf_device_register(self, wb_acpi_suspend, wb_acpi_resume); 148 149 cleanup: 150 acpi_resource_cleanup(&res); 151 } 152 153 static int 154 wb_acpi_detach(device_t self, int flags) 155 { 156 struct wb_acpi_softc *sc = device_private(self); 157 int rv; 158 159 pmf_device_deregister(self); 160 161 if (sc->sc_crs_buffer.Pointer) 162 ACPI_FREE(sc->sc_crs_buffer.Pointer); 163 164 rv = wb_detach(&sc->sc_wb, flags); 165 if (rv) 166 return rv; 167 168 if (sc->sc_ih) 169 isa_intr_disestablish(sc->sc_ic, sc->sc_ih); 170 171 if (sc->sc_ioh_length > 0) 172 bus_space_unmap(sc->sc_wb.wb_iot, sc->sc_wb.wb_ioh, 173 sc->sc_ioh_length); 174 175 return 0; 176 } 177 178 static bool 179 wb_acpi_suspend(device_t self, const pmf_qual_t *qual) 180 { 181 struct wb_acpi_softc *sc = device_private(self); 182 183 return wb_suspend(&sc->sc_wb); 184 } 185 186 static bool 187 wb_acpi_resume(device_t self, const pmf_qual_t *qual) 188 { 189 struct wb_acpi_softc *sc = device_private(self); 190 ACPI_STATUS rv; 191 192 if (sc->sc_crs && sc->sc_srs) { 193 rv = AcpiSetCurrentResources(sc->sc_srs, &sc->sc_crs_buffer); 194 if (ACPI_FAILURE(rv)) 195 printf("%s: _SRS failed: %s\n", 196 device_xname(self), AcpiFormatException(rv)); 197 } 198 199 return wb_resume(&sc->sc_wb); 200 } 201
Indexes created Sun Nov 02 23:10:09 GMT 2025