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/*-
* Copyright (c) 2016 Michael Zhilin <mizhka@gmail.com>
* Copyright (c) 2015-2016 Landon Fuller <landon@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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
* $FreeBSD$
*/
#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 "bcmavar.h"
#include "bcma_eromreg.h"
/*
* Supports bcma(4) attachment to a nexus bus.
*/
static int bcma_nexus_attach(device_t);
static int bcma_nexus_probe(device_t);
struct bcma_nexus_softc {
struct bcma_softc parent_sc;
struct bhnd_chipid bcma_cid;
};
static int
bcma_nexus_probe(device_t dev)
{
struct bcma_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->bcma_cid)))
return (error);
if (sc->bcma_cid.chip_type != BHND_CHIPTYPE_BCMA)
return (ENXIO);
if ((error = bcma_probe(dev)) > 0) {
device_printf(dev, "error %d in probe\n", error);
return (error);
}
return (0);
}
static int
bcma_nexus_attach(device_t dev)
{
struct bcma_nexus_softc *sc;
struct resource *erom_res;
int error;
int rid;
sc = device_get_softc(dev);
/* Map the EROM resource and enumerate the bus. */
rid = 0;
erom_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
sc->bcma_cid.enum_addr,
sc->bcma_cid.enum_addr + BCMA_EROM_TABLE_SIZE,
BCMA_EROM_TABLE_SIZE, RF_ACTIVE);
if (erom_res == NULL) {
device_printf(dev, "failed to allocate EROM resource\n");
return (ENXIO);
}
error = bcma_add_children(dev, erom_res, BCMA_EROM_TABLE_START);
bus_release_resource(dev, SYS_RES_MEMORY, rid, erom_res);
if (error)
return (error);
return (bcma_attach(dev));
}
static const struct bhnd_chipid *
bcma_nexus_get_chipid(device_t dev, device_t child) {
struct bcma_nexus_softc *sc = device_get_softc(dev);
return (&sc->bcma_cid);
}
static device_method_t bcma_nexus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bcma_nexus_probe),
DEVMETHOD(device_attach, bcma_nexus_attach),
/* bhnd interface */
DEVMETHOD(bhnd_bus_get_chipid, bcma_nexus_get_chipid),
DEVMETHOD_END
};
DEFINE_CLASS_2(bhnd, bcma_nexus_driver, bcma_nexus_methods,
sizeof(struct bcma_nexus_softc), bhnd_nexus_driver, bcma_driver);
DRIVER_MODULE(bcma_nexus, nexus, bcma_nexus_driver, bhnd_devclass, 0, 0);
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