| | 1 | /*- |
| | 2 | * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org> |
| | 3 | * All rights reserved. |
| | 4 | * |
| | 5 | * Redistribution and use in source and binary forms, with or without |
| | 6 | * modification, are permitted provided that the following conditions |
| | 7 | * are met: |
| | 8 | * 1. Redistributions of source code must retain the above copyright |
| | 9 | * notice, this list of conditions and the following disclaimer. |
| | 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| | 11 | * notice, this list of conditions and the following disclaimer in the |
| | 12 | * documentation and/or other materials provided with the distribution. |
| | 13 | * |
| | 14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| | 15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | 16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| | 17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| | 18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | 19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| | 20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| | 21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| | 22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| | 23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| | 24 | * SUCH DAMAGE. |
| | 25 | * |
| | 26 | * $FreeBSD: src/sys/dev/acpica/acpi_isab.c,v 1.11 2009/06/05 18:44:36 jkim |
| | 27 | */ |
| | 28 | |
| | 29 | /* |
| | 30 | * ISA Bridge driver for Generic ISA Bus Devices. See section 10.7 of the |
| | 31 | * ACPI 2.0a specification for details on this device. |
| | 32 | */ |
| | 33 | |
| | 34 | #include "opt_acpi.h" |
| | 35 | #include <sys/param.h> |
| | 36 | #include <sys/bus.h> |
| | 37 | #include <sys/kernel.h> |
| | 38 | #include <sys/malloc.h> |
| | 39 | #include <sys/module.h> |
| | 40 | |
| | 41 | #include "acpi.h" |
| | 42 | #include "accommon.h" |
| | 43 | |
| | 44 | #include <dev/acpica5/acpivar.h> |
| | 45 | #include <bus/isa/isavar.h> |
| | 46 | |
| | 47 | /* Hooks for the ACPI CA debugging infrastructure. */ |
| | 48 | #define _COMPONENT ACPI_BUS |
| | 49 | ACPI_MODULE_NAME("ISA_ACPI") |
| | 50 | |
| | 51 | struct acpi_isab_softc { |
| | 52 | device_t ap_dev; |
| | 53 | ACPI_HANDLE ap_handle; |
| | 54 | }; |
| | 55 | |
| | 56 | static int acpi_isab_probe(device_t bus); |
| | 57 | static int acpi_isab_attach(device_t bus); |
| | 58 | static int acpi_isab_read_ivar(device_t dev, device_t child, int which, |
| | 59 | uintptr_t *result); |
| | 60 | |
| | 61 | static device_method_t acpi_isab_methods[] = { |
| | 62 | /* Device interface */ |
| | 63 | DEVMETHOD(device_probe, acpi_isab_probe), |
| | 64 | DEVMETHOD(device_attach, acpi_isab_attach), |
| | 65 | DEVMETHOD(device_shutdown, bus_generic_shutdown), |
| | 66 | DEVMETHOD(device_suspend, bus_generic_suspend), |
| | 67 | DEVMETHOD(device_resume, bus_generic_resume), |
| | 68 | |
| | 69 | /* Bus interface */ |
| | 70 | DEVMETHOD(bus_print_child, bus_generic_print_child), |
| | 71 | DEVMETHOD(bus_read_ivar, acpi_isab_read_ivar), |
| | 72 | DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), |
| | 73 | DEVMETHOD(bus_release_resource, bus_generic_release_resource), |
| | 74 | DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), |
| | 75 | DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), |
| | 76 | DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), |
| | 77 | DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), |
| | 78 | |
| | 79 | {0, 0} |
| | 80 | }; |
| | 81 | |
| | 82 | static driver_t acpi_isab_driver = { |
| | 83 | "isab", |
| | 84 | acpi_isab_methods, |
| | 85 | sizeof(struct acpi_isab_softc), |
| | 86 | }; |
| | 87 | |
| | 88 | DRIVER_MODULE(acpi_isab, acpi, acpi_isab_driver, isab_devclass, NULL, NULL); |
| | 89 | MODULE_DEPEND(acpi_isab, acpi, 1, 1, 1); |
| | 90 | |
| | 91 | static int |
| | 92 | acpi_isab_probe(device_t dev) |
| | 93 | { |
| | 94 | static char *isa_ids[] = { "PNP0A05", "PNP0A06", NULL }; |
| | 95 | |
| | 96 | if (acpi_disabled("isab") || |
| | 97 | ACPI_ID_PROBE(device_get_parent(dev), dev, isa_ids) == NULL || |
| | 98 | devclass_get_device(isab_devclass, 0) != dev) |
| | 99 | return (ENXIO); |
| | 100 | |
| | 101 | device_set_desc(dev, "ACPI Generic ISA bridge"); |
| | 102 | return (0); |
| | 103 | } |
| | 104 | |
| | 105 | static int |
| | 106 | acpi_isab_attach(device_t dev) |
| | 107 | { |
| | 108 | struct acpi_isab_softc *sc; |
| | 109 | |
| | 110 | ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__); |
| | 111 | |
| | 112 | sc = device_get_softc(dev); |
| | 113 | sc->ap_dev = dev; |
| | 114 | sc->ap_handle = acpi_get_handle(dev); |
| | 115 | |
| | 116 | return (isab_attach(dev)); |
| | 117 | } |
| | 118 | |
| | 119 | static int |
| | 120 | acpi_isab_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) |
| | 121 | { |
| | 122 | struct acpi_isab_softc *sc = device_get_softc(dev); |
| | 123 | |
| | 124 | switch (which) { |
| | 125 | case ACPI_IVAR_HANDLE: |
| | 126 | *result = (uintptr_t)sc->ap_handle; |
| | 127 | return (0); |
| | 128 | } |
| | 129 | return (ENOENT); |
| | 130 | } |
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