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/*-
* Copyright (c) 2003 John Baldwin <jhb@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* ISA Bridge driver for Generic ISA Bus Devices. See section 10.7 of the
* ACPI 2.0a specification for details on this device.
*/
#include "opt_acpi.h"
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include "acpi.h"
#include <dev/acpica/acpivar.h>
#include <isa/isavar.h>
/* Hooks for the ACPI CA debugging infrastructure. */
#define _COMPONENT ACPI_BUS
ACPI_MODULE_NAME("ISA_ACPI")
struct acpi_isab_softc {
device_t ap_dev;
ACPI_HANDLE ap_handle;
};
static int acpi_isab_probe(device_t bus);
static int acpi_isab_attach(device_t bus);
static int acpi_isab_read_ivar(device_t dev, device_t child, int which,
uintptr_t *result);
static device_method_t acpi_isab_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, acpi_isab_probe),
DEVMETHOD(device_attach, acpi_isab_attach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_read_ivar, acpi_isab_read_ivar),
DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
{0, 0}
};
static driver_t acpi_isab_driver = {
"isab",
acpi_isab_methods,
sizeof(struct acpi_isab_softc),
};
DRIVER_MODULE(acpi_isab, acpi, acpi_isab_driver, isab_devclass, 0, 0);
MODULE_DEPEND(acpi_isab, acpi, 1, 1, 1);
static int
acpi_isab_probe(device_t dev)
{
static char *isa_ids[] = { "PNP0A05", "PNP0A06", NULL };
if (acpi_disabled("isab") ||
ACPI_ID_PROBE(device_get_parent(dev), dev, isa_ids) == NULL ||
devclass_get_device(isab_devclass, 0) != dev)
return (ENXIO);
device_set_desc(dev, "ACPI Generic ISA bridge");
return (0);
}
static int
acpi_isab_attach(device_t dev)
{
struct acpi_isab_softc *sc;
ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
sc = device_get_softc(dev);
sc->ap_dev = dev;
sc->ap_handle = acpi_get_handle(dev);
return (isab_attach(dev));
}
static int
acpi_isab_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
{
struct acpi_isab_softc *sc = device_get_softc(dev);
switch (which) {
case ACPI_IVAR_HANDLE:
*result = (uintptr_t)sc->ap_handle;
return (0);
}
return (ENOENT);
}
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