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freebsd/sys/powerpc/wii/wii_ipc.c
2013-02-11 08:20:21 +00:00

103 lines
2.9 KiB
C

/*-
* Copyright (C) 2012 Margarida Gouveia
* 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/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/rman.h>
#include <machine/bus.h>
#include <machine/platform.h>
#include <machine/intr_machdep.h>
#include <machine/resource.h>
#include <powerpc/wii/wii_ipcreg.h>
/*
* Driver to interface with the Wii's IOS. IOS are small "microkernels" that run
* on the Broadway GPU and provide access to system services like USB.
*/
static int wiiipc_probe(device_t);
static int wiiipc_attach(device_t);
struct wiiipc_softc {
};
static device_method_t wiiipc_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, wiiipc_probe),
DEVMETHOD(device_attach, wiiipc_attach),
DEVMETHOD_END
};
static driver_t wiiipc_driver = {
"wiiipc",
wiiipc_methods,
sizeof(struct wiiipc_softc)
};
static devclass_t wiiipc_devclass;
DRIVER_MODULE(wiiipc, wiibus, wiiipc_driver, wiiipc_devclass, 0, 0);
static int
wiiipc_probe(device_t dev)
{
device_set_desc(dev, "Nintendo Wii IOS IPC");
return (BUS_PROBE_NOWILDCARD);
}
static int
wiiipc_attach(device_t dev)
{
struct wiiipc_softc *sc;
sc = device_get_softc(dev);
#ifdef notyet
sc->sc_dev = dev;
sc->sc_rrid = 0;
sc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&sc->sc_rrid, RF_ACTIVE);
if (sc->sc_rres == NULL) {
device_printf(dev, "could not alloc mem resource\n");
return (ENXIO);
}
sc->sc_bt = rman_get_bustag(sc->sc_rres);
sc->sc_bh = rman_get_bushandle(sc->sc_rres);
#endif
return (0);
}