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/*-
* Copyright (c) 1998, 2001 Nicolas Souchu
* 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/systm.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/bus.h>
#include <dev/smbus/smbconf.h>
#include <dev/smbus/smbus.h>
/*
* Autoconfiguration and support routines for System Management bus
*/
/*
* Device methods
*/
static int smbus_probe(device_t);
static int smbus_attach(device_t);
static int smbus_detach(device_t);
static device_method_t smbus_methods[] = {
/* device interface */
DEVMETHOD(device_probe, smbus_probe),
DEVMETHOD(device_attach, smbus_attach),
DEVMETHOD(device_detach, smbus_detach),
/* bus interface */
DEVMETHOD(bus_add_child, bus_generic_add_child),
DEVMETHOD(bus_print_child, bus_generic_print_child),
{ 0, 0 }
};
driver_t smbus_driver = {
"smbus",
smbus_methods,
sizeof(struct smbus_softc),
};
devclass_t smbus_devclass;
/*
* At 'probe' time, we add all the devices which we know about to the
* bus. The generic attach routine will probe and attach them if they
* are alive.
*/
static int
smbus_probe(device_t dev)
{
device_set_desc(dev, "System Management Bus");
return (0);
}
static int
smbus_attach(device_t dev)
{
struct smbus_softc *sc = device_get_softc(dev);
mtx_init(&sc->lock, device_get_nameunit(dev), "smbus", MTX_DEF);
bus_generic_probe(dev);
bus_generic_attach(dev);
return (0);
}
static int
smbus_detach(device_t dev)
{
struct smbus_softc *sc = device_get_softc(dev);
int error;
error = bus_generic_detach(dev);
if (error)
return (error);
mtx_destroy(&sc->lock);
return (0);
}
void
smbus_generic_intr(device_t dev, u_char devaddr, char low, char high)
{
}
MODULE_VERSION(smbus, SMBUS_MODVER);
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