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/*-
* Copyright (c) 2002 JF Hay. All rights reserved.
* Copyright (c) 2001 M. Warner Losh. 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 ``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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#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.h>
#include <sys/timepps.h>
#include <dev/puc/puc_bus.h>
#include <dev/sio/siovar.h>
#include <dev/sio/sioreg.h>
static int sio_puc_attach(device_t dev);
static int sio_puc_probe(device_t dev);
static device_method_t sio_puc_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, sio_puc_probe),
DEVMETHOD(device_attach, sio_puc_attach),
DEVMETHOD(device_detach, siodetach),
{ 0, 0 }
};
static driver_t sio_puc_driver = {
sio_driver_name,
sio_puc_methods,
0,
};
/*
* Don't cut and paste this to other drivers. It is a horrible kludge
* which will fail to work and also be unnecessary in future versions.
*/
static void
sio_puc_kludge_unit(device_t dev)
{
devclass_t dc;
int err;
int start;
int unit;
unit = 0;
start = 0;
while (resource_int_value("sio", unit, "port", &start) == 0 &&
start > 0)
unit++;
if (device_get_unit(dev) < unit) {
dc = device_get_devclass(dev);
while (devclass_get_device(dc, unit))
unit++;
device_printf(dev, "moving to sio%d\n", unit);
err = device_set_unit(dev, unit); /* EVIL DO NOT COPY */
if (err)
device_printf(dev, "error moving device %d\n", err);
}
}
static int
sio_puc_attach(device_t dev)
{
uintptr_t rclk;
if (BUS_READ_IVAR(device_get_parent(dev), dev, PUC_IVAR_CLOCK,
&rclk) != 0)
rclk = DEFAULT_RCLK;
sio_puc_kludge_unit(dev);
return (sioattach(dev, 0, rclk));
}
static int
sio_puc_probe(device_t dev)
{
device_t parent;
uintptr_t rclk, type;
int error;
parent = device_get_parent(dev);
if (BUS_READ_IVAR(parent, dev, PUC_IVAR_TYPE, &type))
return (ENXIO);
if (type != PUC_TYPE_SERIAL)
return (ENXIO);
if (BUS_READ_IVAR(parent, dev, PUC_IVAR_CLOCK, &rclk))
rclk = DEFAULT_RCLK;
#ifdef PC98
SET_FLAG(dev, SET_IFTYPE(COM_IF_NS16550));
#endif
error = sioprobe(dev, 0, rclk, 1);
return ((error > 0) ? error : BUS_PROBE_LOW_PRIORITY);
}
DRIVER_MODULE(sio, puc, sio_puc_driver, sio_devclass, 0, 0);
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