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/*-
* Copyright 2003 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <dev/ofw/openfirm.h>
#include <machine/bus.h>
#include <machine/intr_machdep.h>
#include <machine/md_var.h>
#include <machine/pio.h>
#include <machine/resource.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <sys/rman.h>
#include <machine/openpicreg.h>
#include <machine/openpicvar.h>
#include "pic_if.h"
/*
* OFW interface
*/
static int openpic_ofw_probe(device_t);
static int openpic_ofw_attach(device_t);
static void openpic_ofw_translate_code(device_t, u_int irq, int code,
enum intr_trigger *trig, enum intr_polarity *pol);
static device_method_t openpic_ofw_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, openpic_ofw_probe),
DEVMETHOD(device_attach, openpic_ofw_attach),
DEVMETHOD(device_suspend, openpic_suspend),
DEVMETHOD(device_resume, openpic_resume),
/* PIC interface */
DEVMETHOD(pic_bind, openpic_bind),
DEVMETHOD(pic_config, openpic_config),
DEVMETHOD(pic_dispatch, openpic_dispatch),
DEVMETHOD(pic_enable, openpic_enable),
DEVMETHOD(pic_eoi, openpic_eoi),
DEVMETHOD(pic_ipi, openpic_ipi),
DEVMETHOD(pic_mask, openpic_mask),
DEVMETHOD(pic_unmask, openpic_unmask),
DEVMETHOD(pic_translate_code, openpic_ofw_translate_code),
DEVMETHOD_END
};
static driver_t openpic_ofw_driver = {
"openpic",
openpic_ofw_methods,
sizeof(struct openpic_softc),
};
DRIVER_MODULE(openpic, ofwbus, openpic_ofw_driver, openpic_devclass, 0, 0);
DRIVER_MODULE(openpic, simplebus, openpic_ofw_driver, openpic_devclass, 0, 0);
DRIVER_MODULE(openpic, macio, openpic_ofw_driver, openpic_devclass, 0, 0);
static int
openpic_ofw_probe(device_t dev)
{
const char *type = ofw_bus_get_type(dev);
if (type == NULL)
return (ENXIO);
if (!ofw_bus_is_compatible(dev, "chrp,open-pic") &&
strcmp(type, "open-pic") != 0)
return (ENXIO);
/*
* On some U4 systems, there is a phantom MPIC in the mac-io cell.
* The uninorth driver will pick up the real PIC, so ignore it here.
*/
if (OF_finddevice("/u4") != (phandle_t)-1)
return (ENXIO);
device_set_desc(dev, OPENPIC_DEVSTR);
return (0);
}
static int
openpic_ofw_attach(device_t dev)
{
phandle_t xref, node;
node = ofw_bus_get_node(dev);
if (OF_getprop(node, "phandle", &xref, sizeof(xref)) == -1 &&
OF_getprop(node, "ibm,phandle", &xref, sizeof(xref)) == -1 &&
OF_getprop(node, "linux,phandle", &xref, sizeof(xref)) == -1)
xref = node;
return (openpic_common_attach(dev, xref));
}
static void
openpic_ofw_translate_code(device_t dev, u_int irq, int code,
enum intr_trigger *trig, enum intr_polarity *pol)
{
switch (code) {
case 0:
/* L to H edge */
*trig = INTR_TRIGGER_EDGE;
*pol = INTR_POLARITY_HIGH;
break;
case 1:
/* Active L level */
*trig = INTR_TRIGGER_LEVEL;
*pol = INTR_POLARITY_LOW;
break;
case 2:
/* Active H level */
*trig = INTR_TRIGGER_LEVEL;
*pol = INTR_POLARITY_HIGH;
break;
case 3:
/* H to L edge */
*trig = INTR_TRIGGER_EDGE;
*pol = INTR_POLARITY_LOW;
break;
default:
*trig = INTR_TRIGGER_CONFORM;
*pol = INTR_POLARITY_CONFORM;
}
}
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