1 /* $NetBSD: wb_acpi.c,v 1.1 2009/09/30 20:44:50 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 1.1 2009/09/30 20:44:50 jmcneill Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/errno.h> 34 #include <sys/ioctl.h> 35 #include <sys/syslog.h> 36 #include <sys/device.h> 37 #include <sys/proc.h> 38 39 #include <sys/bus.h> 40 41 #include <dev/isa/isavar.h> 42 #include <dev/isa/isadmavar.h> 43 44 #include <dev/acpi/acpica.h> 45 #include <dev/acpi/acpireg.h> 46 #include <dev/acpi/acpivar.h> 47 48 #include <dev/sdmmc/sdmmcvar.h> 49 #include <dev/ic/w83l518dvar.h> 50 #include <dev/ic/w83l518dreg.h> 51 52 static int wb_acpi_match(device_t, cfdata_t, void *); 53 static void wb_acpi_attach(device_t, device_t, void *); 54 static int wb_acpi_detach(device_t, int); 55 56 struct wb_acpi_softc { 57 struct wb_softc sc_wb; 58 isa_chipset_tag_t sc_ic; 59 void *sc_ih; 60 int sc_ioh_length; 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 io = acpi_res_io(&res, 0); 108 irq = acpi_res_irq(&res, 0); 109 if (io == NULL || irq == NULL) { 110 aprint_error_dev(self, "incomplete resources\n"); 111 goto cleanup; 112 } 113 114 if (bus_space_map(aa->aa_iot, io->ar_base, io->ar_length, 0, &ioh)) { 115 aprint_error_dev(self, "couldn't map registers\n"); 116 goto cleanup; 117 } 118 sc->sc_ioh_length = io->ar_length; 119 120 sc->sc_ih = isa_intr_establish(sc->sc_ic, irq->ar_irq, 121 (irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL, 122 IPL_SDMMC, wb_intr, &sc->sc_wb); 123 if (sc->sc_ih == NULL) { 124 aprint_error_dev(self, 125 "couldn't establish interrupt handler\n"); 126 goto cleanup; 127 } 128 129 sc->sc_wb.wb_dev = self; 130 sc->sc_wb.wb_type = WB_DEVNO_SD; 131 sc->sc_wb.wb_iot = aa->aa_iot; 132 sc->sc_wb.wb_ioh = ioh; 133 sc->sc_wb.wb_irq = irq->ar_irq; 134 sc->sc_wb.wb_base = io->ar_base; 135 wb_attach(&sc->sc_wb); 136 137 cleanup: 138 acpi_resource_cleanup(&res); 139 } 140 141 static int 142 wb_acpi_detach(device_t self, int flags) 143 { 144 struct wb_acpi_softc *sc = device_private(self); 145 int rv; 146 147 rv = wb_detach(&sc->sc_wb, flags); 148 if (rv) 149 return rv; 150 151 if (sc->sc_ih) 152 isa_intr_disestablish(sc->sc_ic, sc->sc_ih); 153 154 if (sc->sc_ioh_length > 0) 155 bus_space_unmap(sc->sc_wb.wb_iot, sc->sc_wb.wb_ioh, 156 sc->sc_ioh_length); 157 158 return 0; 159 } 160