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/*-
* Copyright (c) 2015-2016 Landon Fuller <landon@landonf.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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*
* BHNDB PCI SPROM driver.
*
* Provides support for early PCI bridge cores that vend SPROM CSRs
* via PCI configuration space.
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/limits.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/systm.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/bhnd/bhnd.h>
#include <dev/bhnd/cores/pci/bhnd_pci_hostbvar.h>
#include <dev/bhnd/nvram/bhnd_spromvar.h>
#include "bhnd_nvram_if.h"
#include "bhndb_pcireg.h"
#include "bhndb_pcivar.h"
static int
bhndb_pci_sprom_probe(device_t dev)
{
device_t bridge, bus;
int error;
/* Our parent must be a PCI-BHND bridge with an attached bhnd bus */
bridge = device_get_parent(dev);
if (device_get_driver(bridge) != &bhndb_pci_driver)
return (ENXIO);
bus = device_find_child(bridge, devclass_get_name(bhnd_devclass), 0);
if (bus == NULL)
return (ENXIO);
/* Defer to default driver implementation */
if ((error = bhnd_sprom_probe(dev)) > 0)
return (error);
return (BUS_PROBE_NOWILDCARD);
}
static device_method_t bhndb_pci_sprom_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bhndb_pci_sprom_probe),
DEVMETHOD_END
};
DEFINE_CLASS_1(bhnd_nvram, bhndb_pci_sprom_driver, bhndb_pci_sprom_methods, sizeof(struct bhnd_sprom_softc), bhnd_sprom_driver);
DRIVER_MODULE(bhndb_pci_sprom, bhndb, bhndb_pci_sprom_driver, bhnd_nvram_devclass, NULL, NULL);
MODULE_DEPEND(bhndb_pci_sprom, bhnd, 1, 1, 1);
MODULE_DEPEND(bhndb_pci_sprom, bhnd_sprom, 1, 1, 1);
MODULE_VERSION(bhndb_pci_sprom, 1);
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