freebsd-skq/sys/powerpc/mpc85xx/opic.c
Marcel Moolenaar d6f5929710 Add support for the BUS_CONFIG_INTR() method to the platform and to
openpic(4). Make use of it in ocpbus(4). On the MPC85xxCDS, IRQ0:4
are active-low.
2008-03-07 22:08:43 +00:00

96 lines
2.9 KiB
C

/*-
* Copyright 2006 by Juniper Networks. 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/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/intr_machdep.h>
#include <machine/openpicvar.h>
#include <machine/ocpbus.h>
#include "pic_if.h"
/*
* OpenPIC attachment to ocpbus
*/
static int openpic_ocpbus_probe(device_t);
static device_method_t openpic_ocpbus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, openpic_ocpbus_probe),
DEVMETHOD(device_attach, openpic_attach),
/* PIC interface */
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),
{ 0, 0 },
};
static driver_t openpic_ocpbus_driver = {
"openpic",
openpic_ocpbus_methods,
sizeof(struct openpic_softc)
};
DRIVER_MODULE(openpic, ocpbus, openpic_ocpbus_driver, openpic_devclass, 0, 0);
static int
openpic_ocpbus_probe (device_t dev)
{
device_t parent;
uintptr_t devtype;
int error;
parent = device_get_parent(dev);
error = BUS_READ_IVAR(parent, dev, OCPBUS_IVAR_DEVTYPE, &devtype);
if (error)
return (error);
if (devtype != OCPBUS_DEVTYPE_PIC)
return (ENXIO);
device_set_desc(dev, OPENPIC_DEVSTR);
return (BUS_PROBE_DEFAULT);
}