freebsd-dev/sys/dev/smc/if_smc_acpi.c
Andrew Turner 22b33ca4b2 Add an ACPI attachment for if_smc
This is needed by some of the Arm simulators as they implement a smc based
network interface, but use ACPI rather than FDT.

Sponsored by:	Innovate UK
2020-07-28 09:29:56 +00:00

81 lines
2.4 KiB
C

/*-
* Copyright (c) 2008 Benno Rice
* All rights reserved.
* Copyright (c) 2020 Andrew Turner
*
* 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 ``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 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("$FreeBSD$");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/socket.h>
#include <sys/systm.h>
#include <sys/taskqueue.h>
#include <net/if.h>
#include <dev/smc/if_smcvar.h>
#include <contrib/dev/acpica/include/acpi.h>
#include <dev/acpica/acpivar.h>
static int smc_acpi_probe(device_t);
static int
smc_acpi_probe(device_t dev)
{
struct smc_softc *sc;
ACPI_HANDLE h;
if ((h = acpi_get_handle(dev)) == NULL)
return (ENXIO);
if (!acpi_MatchHid(h, "LNRO0003"))
return (ENXIO);
sc = device_get_softc(dev);
sc->smc_usemem = 1;
return (smc_probe(dev));
}
static device_method_t smc_acpi_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, smc_acpi_probe),
{ 0, 0 }
};
DEFINE_CLASS_1(smc, smc_acpi_driver, smc_acpi_methods,
sizeof(struct smc_softc), smc_driver);
extern devclass_t smc_devclass;
DRIVER_MODULE(smc, acpi, smc_acpi_driver, smc_devclass, 0, 0);
MODULE_DEPEND(smc, acpi, 1, 1, 1);
MODULE_DEPEND(smc, ether, 1, 1, 1);
MODULE_DEPEND(smc, miibus, 1, 1, 1);