/*-
* Copyright (c) 2017-2018 QCM Technologies.
* Copyright (c) 2017-2018 Semihalf.
* 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.
*
* $FreeBSD$
*/
#include "opt_platform.h"
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/rman.h>
#include <machine/bus.h>
#ifdef FDT
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#endif
struct powernv_centaur_softc
{
};
static int powernv_centaur_attach(device_t);
static int powernv_centaur_probe(device_t);
static const struct ofw_bus_devinfo *
powernv_centaur_get_devinfo(device_t, device_t);
static device_method_t powernv_centaur_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, powernv_centaur_probe),
DEVMETHOD(device_attach, powernv_centaur_attach),
/* ofw_bus interface */
DEVMETHOD(ofw_bus_get_devinfo, powernv_centaur_get_devinfo),
DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
DEVMETHOD_END
};
static devclass_t powernv_centaur_devclass;
static int
powernv_centaur_probe(device_t dev)
{
if (!(ofw_bus_is_compatible(dev, "ibm,centaur")))
return (ENXIO);
device_set_desc(dev, "centaur");
return (0);
}
static int
powernv_centaur_attach(device_t dev)
{
phandle_t child;
device_t cdev;
struct ofw_bus_devinfo *dinfo;
for (child = OF_child(ofw_bus_get_node(dev)); child != 0;
child = OF_peer(child)) {
dinfo = malloc(sizeof(*dinfo), M_DEVBUF, M_WAITOK | M_ZERO);
if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) {
free(dinfo, M_DEVBUF);
continue;
}
cdev = device_add_child(dev, NULL, -1);
if (cdev == NULL) {
device_printf(dev, "<%s>: device_add_child failed\n",
dinfo->obd_name);
ofw_bus_gen_destroy_devinfo(dinfo);
free(dinfo, M_DEVBUF);
continue;
}
device_set_ivars(cdev, dinfo);
}
return (bus_generic_attach(dev));
}
static const struct ofw_bus_devinfo *
powernv_centaur_get_devinfo(device_t dev, device_t child)
{
return (device_get_ivars(child));
}
DEFINE_CLASS_0(powernv_centaur, powernv_centaur_driver, powernv_centaur_methods,
sizeof(struct powernv_centaur_softc));
DRIVER_MODULE(powernv_centaur, ofwbus, powernv_centaur_driver, powernv_centaur_devclass, NULL,
NULL);
