/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2020 Amazon.com, Inc. or its affiliates.
* 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 "opt_acpi.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/intr.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <contrib/dev/acpica/include/accommon.h>
#include <dev/acpica/acpivar.h>
#include <dev/gpio/gpiobusvar.h>
#include "pl061.h"
static char *gpio_ids[] = { "ARMH0061", NULL };
static int
pl061_acpi_probe(device_t dev)
{
int rv;
if (acpi_disabled("gpio"))
return (ENXIO);
rv = ACPI_ID_PROBE(device_get_parent(dev), dev, gpio_ids, NULL);
if (rv <= 0)
device_set_desc(dev, "Arm PL061 GPIO Controller");
return (rv);
}
static int
pl061_acpi_attach(device_t dev)
{
int error;
error = pl061_attach(dev);
if (error != 0)
return (error);
if (!intr_pic_register(dev, ACPI_GPIO_XREF)) {
device_printf(dev, "couldn't register PIC\n");
pl061_detach(dev);
error = ENXIO;
}
return (error);
}
static device_method_t pl061_acpi_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pl061_acpi_probe),
DEVMETHOD(device_attach, pl061_acpi_attach),
DEVMETHOD_END
};
DEFINE_CLASS_1(gpio, pl061_acpi_driver, pl061_acpi_methods,
sizeof(struct pl061_softc), pl061_driver);
static devclass_t pl061_devclass;
EARLY_DRIVER_MODULE(pl061, acpi, pl061_acpi_driver, pl061_devclass, NULL, NULL,
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
MODULE_DEPEND(pl061, acpi, 1, 1, 1);
MODULE_DEPEND(pl061, gpiobus, 1, 1, 1);
