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/*-
* Copyright (c) 2011-2012 Stefan Bethke.
* 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 <sys/param.h>
#include <sys/bus.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <dev/mdio/mdio.h>
#include "mdio_if.h"
static void
mdio_identify(driver_t *driver, device_t parent)
{
if (device_find_child(parent, mdio_driver.name, -1) == NULL)
BUS_ADD_CHILD(parent, 0, mdio_driver.name, -1);
}
static int
mdio_probe(device_t dev)
{
device_set_desc(dev, "MDIO");
return (BUS_PROBE_SPECIFIC);
}
static int
mdio_attach(device_t dev)
{
bus_generic_probe(dev);
bus_enumerate_hinted_children(dev);
return (bus_generic_attach(dev));
}
static int
mdio_detach(device_t dev)
{
bus_generic_detach(dev);
return (0);
}
static int
mdio_readreg(device_t dev, int phy, int reg)
{
return (MDIO_READREG(device_get_parent(dev), phy, reg));
}
static int
mdio_writereg(device_t dev, int phy, int reg, int val)
{
return (MDIO_WRITEREG(device_get_parent(dev), phy, reg, val));
}
static int
mdio_readextreg(device_t dev, int phy, int devad, int reg)
{
return (MDIO_READEXTREG(device_get_parent(dev), phy, devad, reg));
}
static int
mdio_writeextreg(device_t dev, int phy, int devad, int reg,
int val)
{
return (MDIO_WRITEEXTREG(device_get_parent(dev), phy, devad, reg, val));
}
static void
mdio_hinted_child(device_t dev, const char *name, int unit)
{
device_add_child(dev, name, unit);
}
static device_method_t mdio_methods[] = {
/* device interface */
DEVMETHOD(device_identify, mdio_identify),
DEVMETHOD(device_probe, mdio_probe),
DEVMETHOD(device_attach, mdio_attach),
DEVMETHOD(device_detach, mdio_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
/* bus interface */
DEVMETHOD(bus_add_child, device_add_child_ordered),
DEVMETHOD(bus_hinted_child, mdio_hinted_child),
/* MDIO access */
DEVMETHOD(mdio_readreg, mdio_readreg),
DEVMETHOD(mdio_writereg, mdio_writereg),
DEVMETHOD(mdio_readextreg, mdio_readextreg),
DEVMETHOD(mdio_writeextreg, mdio_writeextreg),
DEVMETHOD_END
};
driver_t mdio_driver = {
"mdio",
mdio_methods,
0
};
devclass_t mdio_devclass;
MODULE_VERSION(mdio, 1);
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