118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
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/*-
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* Copyright (c) 2011-2012 Stefan Bethke.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/systm.h>
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#include <dev/etherswitch/mdio.h>
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#include "mdio_if.h"
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static void
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mdio_identify(driver_t *driver, device_t parent)
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{
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if (device_find_child(parent, mdio_driver.name, -1) == NULL)
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BUS_ADD_CHILD(parent, 0, mdio_driver.name, -1);
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}
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static int
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mdio_probe(device_t dev)
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{
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device_set_desc(dev, "MDIO");
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return (BUS_PROBE_SPECIFIC);
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}
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static int
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mdio_attach(device_t dev)
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{
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bus_generic_probe(dev);
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bus_enumerate_hinted_children(dev);
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return (bus_generic_attach(dev));
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}
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static int
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mdio_detach(device_t dev)
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{
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bus_generic_detach(dev);
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return (0);
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}
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static int
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mdio_readreg(device_t dev, int phy, int reg)
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{
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return (MDIO_READREG(device_get_parent(dev), phy, reg));
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}
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static int
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mdio_writereg(device_t dev, int phy, int reg, int val)
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{
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return (MDIO_WRITEREG(device_get_parent(dev), phy, reg, val));
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}
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static void
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mdio_hinted_child(device_t dev, const char *name, int unit)
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{
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device_add_child(dev, name, unit);
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}
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static device_method_t mdio_methods[] = {
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/* device interface */
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DEVMETHOD(device_identify, mdio_identify),
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DEVMETHOD(device_probe, mdio_probe),
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DEVMETHOD(device_attach, mdio_attach),
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DEVMETHOD(device_detach, mdio_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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/* bus interface */
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DEVMETHOD(bus_add_child, device_add_child_ordered),
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DEVMETHOD(bus_hinted_child, mdio_hinted_child),
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/* MDIO access */
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DEVMETHOD(mdio_readreg, mdio_readreg),
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DEVMETHOD(mdio_writereg, mdio_writereg),
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DEVMETHOD_END
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};
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driver_t mdio_driver = {
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"mdio",
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mdio_methods,
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0
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};
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devclass_t mdio_devclass;
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