/*-
* Copyright (c) 2016 Svatopluk Kraus
* Copyright (c) 2016 Michal Meloun
* 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/systm.h>
#include <machine/fdt.h>
#include <machine/intr.h>
#include <machine/resource.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include "pic_if.h"
static struct ofw_compat_data compat_data[] = {
{"ti,omap4-wugen-mpu", 1},
{NULL, 0}
};
struct omap4_wugen_sc {
device_t sc_dev;
struct resource *sc_mem_res;
device_t sc_parent;
};
static int
omap4_wugen_activate_intr(device_t dev, struct intr_irqsrc *isrc,
struct resource *res, struct intr_map_data *data)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_ACTIVATE_INTR(sc->sc_parent, isrc, res, data));
}
static void
omap4_wugen_disable_intr(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_DISABLE_INTR(sc->sc_parent, isrc);
}
static void
omap4_wugen_enable_intr(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_ENABLE_INTR(sc->sc_parent, isrc);
}
static int
omap4_wugen_map_intr(device_t dev, struct intr_map_data *data,
struct intr_irqsrc **isrcp)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_MAP_INTR(sc->sc_parent, data, isrcp));
}
static int
omap4_wugen_deactivate_intr(device_t dev, struct intr_irqsrc *isrc,
struct resource *res, struct intr_map_data *data)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_DEACTIVATE_INTR(sc->sc_parent, isrc, res, data));
}
static int
omap4_wugen_setup_intr(device_t dev, struct intr_irqsrc *isrc,
struct resource *res, struct intr_map_data *data)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_SETUP_INTR(sc->sc_parent, isrc, res, data));
}
static int
omap4_wugen_teardown_intr(device_t dev, struct intr_irqsrc *isrc,
struct resource *res, struct intr_map_data *data)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_TEARDOWN_INTR(sc->sc_parent, isrc, res, data));
}
static void
omap4_wugen_pre_ithread(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_PRE_ITHREAD(sc->sc_parent, isrc);
}
static void
omap4_wugen_post_ithread(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_POST_ITHREAD(sc->sc_parent, isrc);
}
static void
omap4_wugen_post_filter(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
PIC_POST_FILTER(sc->sc_parent, isrc);
}
#ifdef SMP
static int
omap4_wugen_bind_intr(device_t dev, struct intr_irqsrc *isrc)
{
struct omap4_wugen_sc *sc = device_get_softc(dev);
return (PIC_BIND_INTR(sc->sc_parent, isrc));
}
#endif
static int
omap4_wugen_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
return (ENXIO);
return (BUS_PROBE_DEFAULT);
}
static int
omap4_wugen_detach(device_t dev)
{
struct omap4_wugen_sc *sc;
sc = device_get_softc(dev);
if (sc->sc_mem_res != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY, 0, sc->sc_mem_res);
sc->sc_mem_res = NULL;
}
return (0);
}
static int
omap4_wugen_attach(device_t dev)
{
struct omap4_wugen_sc *sc;
phandle_t node;
phandle_t parent_xref;
int rid, rv;
sc = device_get_softc(dev);
sc->sc_dev = dev;
node = ofw_bus_get_node(dev);
rv = OF_getencprop(node, "interrupt-parent", &parent_xref,
sizeof(parent_xref));
if (rv <= 0) {
device_printf(dev, "can't read parent node property\n");
goto fail;
}
sc->sc_parent = OF_device_from_xref(parent_xref);
if (sc->sc_parent == NULL) {
device_printf(dev, "can't find parent controller\n");
goto fail;
}
rid = 0;
sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (sc->sc_mem_res == NULL) {
device_printf(dev, "can't allocate resources\n");
return (ENXIO);
}
if (intr_pic_register(dev, OF_xref_from_node(node)) == NULL) {
device_printf(dev, "can't register PIC\n");
goto fail;
}
return (0);
fail:
omap4_wugen_detach(dev);
return (ENXIO);
}
static device_method_t omap4_wugen_methods[] = {
DEVMETHOD(device_probe, omap4_wugen_probe),
DEVMETHOD(device_attach, omap4_wugen_attach),
DEVMETHOD(device_detach, omap4_wugen_detach),
/* Interrupt controller interface */
DEVMETHOD(pic_activate_intr, omap4_wugen_activate_intr),
DEVMETHOD(pic_disable_intr, omap4_wugen_disable_intr),
DEVMETHOD(pic_enable_intr, omap4_wugen_enable_intr),
DEVMETHOD(pic_map_intr, omap4_wugen_map_intr),
DEVMETHOD(pic_deactivate_intr, omap4_wugen_deactivate_intr),
DEVMETHOD(pic_setup_intr, omap4_wugen_setup_intr),
DEVMETHOD(pic_teardown_intr, omap4_wugen_teardown_intr),
DEVMETHOD(pic_pre_ithread, omap4_wugen_pre_ithread),
DEVMETHOD(pic_post_ithread, omap4_wugen_post_ithread),
DEVMETHOD(pic_post_filter, omap4_wugen_post_filter),
#ifdef SMP
DEVMETHOD(pic_bind_intr, omap4_wugen_bind_intr),
#endif
DEVMETHOD_END
};
devclass_t omap4_wugen_devclass;
DEFINE_CLASS_0(omap4_wugen, omap4_wugen_driver, omap4_wugen_methods,
sizeof(struct omap4_wugen_sc));
EARLY_DRIVER_MODULE(omap4_wugen, simplebus, omap4_wugen_driver,
omap4_wugen_devclass, NULL, NULL,
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_MIDDLE + 1);
