| 1 | /* $NetBSD: spic_acpi.c,v 1.6 2010/03/05 14:00:17 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 1.6 2010/03/05 14:00:17 jruoho Exp $" ); |
| 34 | |
| 35 | #include <sys/param.h> |
| 36 | #include <sys/device.h> |
| 37 | #include <sys/systm.h> |
| 38 | |
| 39 | #include <dev/acpi/acpireg.h> |
| 40 | #include <dev/acpi/acpivar.h> |
| 41 | |
| 42 | #include <dev/ic/spicvar.h> |
| 43 | |
| 44 | #define _COMPONENT ACPI_RESOURCE_COMPONENT |
| 45 | ACPI_MODULE_NAME ("spic_acpi" ) |
| 46 | |
| 47 | struct spic_acpi_softc { |
| 48 | struct spic_softc sc_spic; /* spic device */ |
| 49 | |
| 50 | struct acpi_devnode *sc_node; /* our ACPI devnode */ |
| 51 | |
| 52 | void *sc_ih; |
| 53 | }; |
| 54 | |
| 55 | static const char * const spic_acpi_ids[] = { |
| 56 | "SNY6001" , |
| 57 | NULL |
| 58 | }; |
| 59 | |
| 60 | static int spic_acpi_match(device_t, cfdata_t, void *); |
| 61 | static void spic_acpi_attach(device_t, device_t, void *); |
| 62 | |
| 63 | CFATTACH_DECL_NEW(spic_acpi, sizeof(struct spic_acpi_softc), |
| 64 | spic_acpi_match, spic_acpi_attach, NULL, NULL); |
| 65 | |
| 66 | |
| 67 | static int |
| 68 | spic_acpi_match(device_t parent, cfdata_t match, void *aux) |
| 69 | { |
| 70 | struct acpi_attach_args *aa = aux; |
| 71 | |
| 72 | if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE) |
| 73 | return (0); |
| 74 | |
| 75 | return (acpi_match_hid(aa->aa_node->ad_devinfo, spic_acpi_ids)); |
| 76 | } |
| 77 | |
| 78 | static void |
| 79 | spic_acpi_attach(device_t parent, device_t self, void *aux) |
| 80 | { |
| 81 | struct spic_acpi_softc *sc = device_private(self); |
| 82 | struct acpi_attach_args *aa = aux; |
| 83 | struct acpi_io *io; |
| 84 | struct acpi_irq *irq; |
| 85 | struct acpi_resources res; |
| 86 | |
| 87 | ACPI_STATUS rv; |
| 88 | |
| 89 | sc->sc_spic.sc_dev = self; |
| 90 | sc->sc_node = aa->aa_node; |
| 91 | |
| 92 | /* Parse our resources. */ |
| 93 | rv = acpi_resource_parse(self, sc->sc_node->ad_handle, |
| 94 | "_CRS" , &res, &acpi_resource_parse_ops_default); |
| 95 | if (ACPI_FAILURE(rv)) |
| 96 | return; |
| 97 | |
| 98 | sc->sc_spic.sc_iot = aa->aa_iot; |
| 99 | io = acpi_res_io(&res, 0); |
| 100 | if (io == NULL) { |
| 101 | aprint_error_dev(self, "unable to find io resource\n" ); |
| 102 | goto out; |
| 103 | } |
| 104 | if (bus_space_map(sc->sc_spic.sc_iot, io->ar_base, io->ar_length, |
| 105 | 0, &sc->sc_spic.sc_ioh) != 0) { |
| 106 | aprint_error_dev(self, "unable to map data register\n" ); |
| 107 | goto out; |
| 108 | } |
| 109 | irq = acpi_res_irq(&res, 0); |
| 110 | if (irq == NULL) { |
| 111 | aprint_error_dev(self, "unable to find irq resource\n" ); |
| 112 | /* XXX unmap */ |
| 113 | goto out; |
| 114 | } |
| 115 | #if 0 |
| 116 | sc->sc_ih = isa_intr_establish(NULL, irq->ar_irq, |
| 117 | IST_EDGE, IPL_TTY, spic_intr, sc); |
| 118 | #endif |
| 119 | |
| 120 | if (!pmf_device_register(self, spic_suspend, spic_resume)) |
| 121 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 122 | else |
| 123 | pmf_class_input_register(self); |
| 124 | |
| 125 | spic_attach(&sc->sc_spic); |
| 126 | out: |
| 127 | acpi_resource_cleanup(&res); |
| 128 | } |
| 129 | |