1178476Sjb/* $NetBSD: wb_acpi.c,v 1.4 2010/08/19 18:30:33 jmcneill Exp $ */ 2178476Sjb 3178476Sjb/* 4178476Sjb * Copyright (c) 2009 Jared D. McNeill <jmcneill@invisible.ca> 5178476Sjb * All rights reserved. 6178476Sjb * 7178476Sjb * Redistribution and use in source and binary forms, with or without 8178476Sjb * modification, are permitted provided that the following conditions 9178476Sjb * are met: 10178476Sjb * 1. Redistributions of source code must retain the above copyright 11178476Sjb * notice, this list of conditions and the following disclaimer. 12178476Sjb * 2. The name of the author may not be used to endorse or promote products 13178476Sjb * derived from this software without specific prior written permission. 14178476Sjb * 15178476Sjb * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16178476Sjb * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17178476Sjb * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18178476Sjb * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19178476Sjb * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20178476Sjb * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21178476Sjb * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22178476Sjb * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23178476Sjb * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24178476Sjb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25178476Sjb * SUCH DAMAGE. 26178476Sjb */ 27178476Sjb 28178476Sjb#include <sys/cdefs.h> 29178476Sjb__KERNEL_RCSID(0, "$NetBSD: wb_acpi.c,v 1.4 2010/08/19 18:30:33 jmcneill Exp $"); 30178476Sjb 31178476Sjb#include <sys/param.h> 32178476Sjb#include <sys/device.h> 33178476Sjb#include <sys/systm.h> 34178476Sjb 35178476Sjb#include <dev/acpi/acpireg.h> 36178476Sjb#include <dev/acpi/acpivar.h> 37178476Sjb 38178476Sjb#include <dev/ic/w83l518dvar.h> 39178476Sjb#include <dev/ic/w83l518dreg.h> 40178476Sjb 41178476Sjb#include <dev/isa/isadmavar.h> 42178476Sjb 43178476Sjb#include <dev/sdmmc/sdmmcvar.h> 44178476Sjb 45178476Sjb#define _COMPONENT ACPI_RESOURCE_COMPONENT 46178476SjbACPI_MODULE_NAME ("wb_acpi") 47178476Sjb 48178476Sjbstatic int wb_acpi_match(device_t, cfdata_t, void *); 49178476Sjbstatic void wb_acpi_attach(device_t, device_t, void *); 50178476Sjbstatic int wb_acpi_detach(device_t, int); 51178476Sjbstatic bool wb_acpi_suspend(device_t, const pmf_qual_t *); 52178476Sjbstatic bool wb_acpi_resume(device_t, const pmf_qual_t *); 53178476Sjb 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