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/*-
* Copyright 2002 by Peter Grehan. 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*
* $FreeBSD$
*/
/*
* PSIM local bus 16550
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/module.h>
#include <sys/tty.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <sys/timepps.h>
#include <dev/ofw/openfirm.h>
#include <powerpc/psim/iobusvar.h>
#include <dev/sio/sioreg.h>
#include <dev/sio/siovar.h>
#include <isa/isavar.h> /* for isa_irq_pending() prototype */
static int sio_iobus_attach(device_t dev);
static int sio_iobus_probe(device_t dev);
static device_method_t sio_iobus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sio_iobus_probe),
DEVMETHOD(device_attach, sio_iobus_attach),
{ 0, 0 }
};
static driver_t sio_iobus_driver = {
sio_driver_name,
sio_iobus_methods,
0,
};
static int
sio_iobus_attach(device_t dev)
{
return (sioattach(dev, 0, DEFAULT_RCLK));
}
static int
sio_iobus_probe(device_t dev)
{
char *type = iobus_get_name(dev);
if (strncmp(type, "com", 3) != 0)
return (ENXIO);
device_set_desc(dev, "PSIM serial port");
/*
* Call sioprobe with noprobe=1, to avoid hitting a psim bug
*/
return (sioprobe(dev, 0, 0, 1));
}
DRIVER_MODULE(sio, iobus, sio_iobus_driver, sio_devclass, 0, 0);
/*
* Stub function. Perhaps a way to get this to work correctly would
* be for child devices to set a field in the dev structure to
* inform the parent that they are isa devices, and then use a
* intr_pending() call which would propagate up to nexus to see
* if the interrupt controller had any intrs in the isa group set
*/
intrmask_t
isa_irq_pending(void)
{
return (0);
}
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