1 /* $NetBSD: wb_acpi.c,v 1.2 2010/03/05 14:00:17 jruoho 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 1.2 2010/03/05 14:00:17 jruoho 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 static int wb_acpi_match(device_t, cfdata_t, void *); 45 static void wb_acpi_attach(device_t, device_t, void *); 46 static int wb_acpi_detach(device_t, int); 47 48 struct wb_acpi_softc { 49 struct wb_softc sc_wb; 50 isa_chipset_tag_t sc_ic; 51 void *sc_ih; 52 int sc_ioh_length; 53 }; 54 55 CFATTACH_DECL_NEW(wb_acpi, sizeof(struct wb_acpi_softc), 56 wb_acpi_match, 57 wb_acpi_attach, 58 wb_acpi_detach, 59 NULL 60 ); 61 62 static const char * const wb_acpi_ids[] = { 63 #if notyet 64 "WEC0515", /* Memory Stick interface */ 65 #endif 66 "WEC0517", /* SD Memory Card interface */ 67 NULL 68 }; 69 70 static int 71 wb_acpi_match(device_t parent, cfdata_t match, void *opaque) 72 { 73 struct acpi_attach_args *aa = opaque; 74 75 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 76 return 0; 77 78 return acpi_match_hid(aa->aa_node->ad_devinfo, wb_acpi_ids); 79 } 80 81 static void 82 wb_acpi_attach(device_t parent, device_t self, void *opaque) 83 { 84 struct wb_acpi_softc *sc = device_private(self); 85 struct acpi_attach_args *aa = opaque; 86 struct acpi_resources res; 87 struct acpi_io *io; 88 struct acpi_irq *irq; 89 bus_space_handle_t ioh; 90 ACPI_STATUS rv; 91 92 sc->sc_ic = aa->aa_ic; 93 94 rv = acpi_resource_parse(self, aa->aa_node->ad_handle, "_CRS", 95 &res, &acpi_resource_parse_ops_default); 96 if (ACPI_FAILURE(rv)) 97 return; 98 99 io = acpi_res_io(&res, 0); 100 irq = acpi_res_irq(&res, 0); 101 if (io == NULL || irq == NULL) { 102 aprint_error_dev(self, "incomplete resources\n"); 103 goto cleanup; 104 } 105 106 if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 0, &ioh)) { 107 aprint_error_dev(self, "couldn't map registers\n"); 108 goto cleanup; 109 } 110 sc->sc_ioh_length = io->ar_length; 111 112 sc->sc_ih = isa_intr_establish(sc->sc_ic, irq->ar_irq, 113 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 114 IPL_SDMMC, wb_intr, &sc->sc_wb); 115 if (sc->sc_ih == NULL) { 116 aprint_error_dev(self, 117 "couldn't establish interrupt handler\n"); 118 goto cleanup; 119 } 120 121 sc->sc_wb.wb_dev = self; 122 sc->sc_wb.wb_type = WB_DEVNO_SD; 123 sc->sc_wb.wb_iot = aa->aa_iot; 124 sc->sc_wb.wb_ioh = ioh; 125 sc->sc_wb.wb_irq = irq->ar_irq; 126 sc->sc_wb.wb_base = io->ar_base; 127 wb_attach(&sc->sc_wb); 128 129 cleanup: 130 acpi_resource_cleanup(&res); 131 } 132 133 static int 134 wb_acpi_detach(device_t self, int flags) 135 { 136 struct wb_acpi_softc *sc = device_private(self); 137 int rv; 138 139 rv = wb_detach(&sc->sc_wb, flags); 140 if (rv) 141 return rv; 142 143 if (sc->sc_ih) 144 isa_intr_disestablish(sc->sc_ic, sc->sc_ih); 145 146 if (sc->sc_ioh_length > 0) 147 bus_space_unmap(sc->sc_wb.wb_iot, sc->sc_wb.wb_ioh, 148 sc->sc_ioh_length); 149 150 return 0; 151 } 152