1 /* $NetBSD: spic_acpi.c,v 1.5 2010/01/30 18:35:49 jruoho Exp $ */ 2 3 /* 4 * Copyright (c) 2002 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net). 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: spic_acpi.c,v 1.5 2010/01/30 18:35:49 jruoho Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/device.h> 38 #include <sys/proc.h> 39 #include <sys/kernel.h> 40 #include <sys/callout.h> 41 #include <sys/bus.h> 42 43 #include <dev/ic/spicvar.h> 44 45 #include <dev/acpi/acpica.h> 46 #include <dev/acpi/acpireg.h> 47 #include <dev/acpi/acpivar.h> 48 49 #define _COMPONENT ACPI_RESOURCE_COMPONENT 50 ACPI_MODULE_NAME ("spic_acpi") 51 52 struct spic_acpi_softc { 53 struct spic_softc sc_spic; /* spic device */ 54 55 struct acpi_devnode *sc_node; /* our ACPI devnode */ 56 57 void *sc_ih; 58 }; 59 60 static const char * const spic_acpi_ids[] = { 61 "SNY6001", 62 NULL 63 }; 64 65 static int spic_acpi_match(device_t, cfdata_t, void *); 66 static void spic_acpi_attach(device_t, device_t, void *); 67 68 CFATTACH_DECL_NEW(spic_acpi, sizeof(struct spic_acpi_softc), 69 spic_acpi_match, spic_acpi_attach, NULL, NULL); 70 71 72 static int 73 spic_acpi_match(device_t parent, cfdata_t match, void *aux) 74 { 75 struct acpi_attach_args *aa = aux; 76 77 if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) 78 return (0); 79 80 return (acpi_match_hid(aa->aa_node->ad_devinfo, spic_acpi_ids)); 81 } 82 83 static void 84 spic_acpi_attach(device_t parent, device_t self, void *aux) 85 { 86 struct spic_acpi_softc *sc = device_private(self); 87 struct acpi_attach_args *aa = aux; 88 struct acpi_io *io; 89 struct acpi_irq *irq; 90 struct acpi_resources res; 91 92 ACPI_STATUS rv; 93 94 sc->sc_spic.sc_dev = self; 95 sc->sc_node = aa->aa_node; 96 97 /* Parse our resources. */ 98 rv = acpi_resource_parse(self, sc->sc_node->ad_handle, 99 "_CRS", &res, &acpi_resource_parse_ops_default); 100 if (ACPI_FAILURE(rv)) 101 return; 102 103 sc->sc_spic.sc_iot = aa->aa_iot; 104 io = acpi_res_io(&res, 0); 105 if (io == NULL) { 106 aprint_error_dev(self, "unable to find io resource\n"); 107 goto out; 108 } 109 if (bus_space_map(sc->sc_spic.sc_iot, io->ar_base, io->ar_length, 110 0, &sc->sc_spic.sc_ioh) != 0) { 111 aprint_error_dev(self, "unable to map data register\n"); 112 goto out; 113 } 114 irq = acpi_res_irq(&res, 0); 115 if (irq == NULL) { 116 aprint_error_dev(self, "unable to find irq resource\n"); 117 /* XXX unmap */ 118 goto out; 119 } 120 #if 0 121 sc->sc_ih = isa_intr_establish(NULL, irq->ar_irq, 122 IST_EDGE, IPL_TTY, spic_intr, sc); 123 #endif 124 125 if (!pmf_device_register(self, spic_suspend, spic_resume)) 126 aprint_error_dev(self, "couldn't establish power handler\n"); 127 else 128 pmf_class_input_register(self); 129 130 spic_attach(&sc->sc_spic); 131 out: 132 acpi_resource_cleanup(&res); 133 } 134