mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-23 11:18:54 +00:00
110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
/*-
|
|
* 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);
|
|
}
|