2 * Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
25 * $FreeBSD: src/sys/dev/acpica/acpi_isab.c,v 1.11 2009/06/05 18:44:36 jkim
28 #include <sys/cdefs.h>
31 * ISA Bridge driver for Generic ISA Bus Devices. See section 10.7 of the
32 * ACPI 2.0a specification for details on this device.
36 #include <sys/param.h>
38 #include <sys/kernel.h>
39 #include <sys/malloc.h>
40 #include <sys/module.h>
45 #include <dev/acpica5/acpivar.h>
46 #include <bus/isa/isavar.h>
48 /* Hooks for the ACPI CA debugging infrastructure. */
49 #define _COMPONENT ACPI_BUS
50 ACPI_MODULE_NAME("ISA_ACPI")
52 struct acpi_isab_softc
{
54 ACPI_HANDLE ap_handle
;
57 static int acpi_isab_probe(device_t bus
);
58 static int acpi_isab_attach(device_t bus
);
59 static int acpi_isab_read_ivar(device_t dev
, device_t child
, int which
,
62 static device_method_t acpi_isab_methods
[] = {
63 /* Device interface */
64 DEVMETHOD(device_probe
, acpi_isab_probe
),
65 DEVMETHOD(device_attach
, acpi_isab_attach
),
66 DEVMETHOD(device_shutdown
, bus_generic_shutdown
),
67 DEVMETHOD(device_suspend
, bus_generic_suspend
),
68 DEVMETHOD(device_resume
, bus_generic_resume
),
71 DEVMETHOD(bus_print_child
, bus_generic_print_child
),
72 DEVMETHOD(bus_read_ivar
, acpi_isab_read_ivar
),
73 DEVMETHOD(bus_alloc_resource
, bus_generic_alloc_resource
),
74 DEVMETHOD(bus_release_resource
, bus_generic_release_resource
),
75 DEVMETHOD(bus_activate_resource
, bus_generic_activate_resource
),
76 DEVMETHOD(bus_deactivate_resource
, bus_generic_deactivate_resource
),
77 DEVMETHOD(bus_setup_intr
, bus_generic_setup_intr
),
78 DEVMETHOD(bus_teardown_intr
, bus_generic_teardown_intr
),
83 static driver_t acpi_isab_driver
= {
86 sizeof(struct acpi_isab_softc
),
89 DRIVER_MODULE(acpi_isab
, acpi
, acpi_isab_driver
, isab_devclass
, 0, 0);
90 MODULE_DEPEND(acpi_isab
, acpi
, 1, 1, 1);
93 acpi_isab_probe(device_t dev
)
95 static char *isa_ids
[] = { "PNP0A05", "PNP0A06", NULL
};
97 if (acpi_disabled("isab") ||
98 ACPI_ID_PROBE(device_get_parent(dev
), dev
, isa_ids
) == NULL
||
99 devclass_get_device(isab_devclass
, 0) != dev
)
102 device_set_desc(dev
, "ACPI Generic ISA bridge");
107 acpi_isab_attach(device_t dev
)
109 struct acpi_isab_softc
*sc
;
111 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__
);
113 sc
= device_get_softc(dev
);
115 sc
->ap_handle
= acpi_get_handle(dev
);
117 return (isab_attach(dev
));
121 acpi_isab_read_ivar(device_t dev
, device_t child
, int which
, uintptr_t *result
)
123 struct acpi_isab_softc
*sc
= device_get_softc(dev
);
126 case ACPI_IVAR_HANDLE
:
127 *result
= (uintptr_t)sc
->ap_handle
;