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/*-
* Copyright (c) 2015-2016 Landon Fuller <landon@freebsd.org>
* Copyright (c) 2007 Bruce M. Simpson.
* 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("$FreeBSD$");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <dev/bhnd/bhnd_ids.h>
#include <dev/bhnd/bhnd_nexusvar.h>
#include <dev/bhnd/cores/chipc/chipcreg.h>
#include "sibavar.h"
/*
* Supports siba(4) attachment to a MIPS nexus bus.
*
* Derived from Bruce M. Simpson' original siba(4) driver.
*/
struct siba_nexus_softc {
struct siba_softc parent_sc;
struct bhnd_chipid siba_cid;
};
static int
siba_nexus_probe(device_t dev)
{
struct siba_nexus_softc *sc;
int error;
sc = device_get_softc(dev);
/* Read the ChipCommon info using the hints the kernel
* was compiled with. */
if ((error = bhnd_nexus_read_chipid(dev, &sc->siba_cid)))
return (error);
if (sc->siba_cid.chip_type != BHND_CHIPTYPE_SIBA)
return (ENXIO);
if ((error = siba_probe(dev)) > 0) {
device_printf(dev, "error %d in probe\n", error);
return (error);
}
return (0);
}
static int
siba_nexus_attach(device_t dev)
{
struct siba_nexus_softc *sc;
int error;
sc = device_get_softc(dev);
/* Enumerate the bus. */
if ((error = siba_add_children(dev, NULL))) {
device_printf(dev, "error %d enumerating children\n", error);
return (error);
}
return (siba_attach(dev));
}
static const struct bhnd_chipid *
siba_nexus_get_chipid(device_t dev, device_t child) {
struct siba_nexus_softc *sc = device_get_softc(dev);
return (&sc->siba_cid);
}
static device_method_t siba_nexus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, siba_nexus_probe),
DEVMETHOD(device_attach, siba_nexus_attach),
/* bhnd interface */
DEVMETHOD(bhnd_bus_get_chipid, siba_nexus_get_chipid),
DEVMETHOD_END
};
DEFINE_CLASS_2(bhnd, siba_nexus_driver, siba_nexus_methods,
sizeof(struct siba_nexus_softc), bhnd_nexus_driver, siba_driver);
EARLY_DRIVER_MODULE(siba_nexus, nexus, siba_nexus_driver, bhnd_devclass, 0, 0,
BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
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