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/*-
* Copyright (c) 2005 Peter Grehan
* Copyright (c) 2008 Nathan Whitehorn
* 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.
*
* $FreeBSD: release/9.1.0/sys/dev/ofw/ofwvar.h 194138 2009-06-14 00:05:38Z marius $
*/
#ifndef _DEV_OFW_OFWVAR_H_
#define _DEV_OFW_OFWVAR_H_
/*
* An Open Firmware client implementation is declared with a kernel object and
* an associated method table, similar to a device driver.
*
* e.g.
*
* static ofw_method_t fdt_methods[] = {
* OFWMETHOD(ofw_init, fdt_init),
* OFWMETHOD(ofw_finddevice, fdt_finddevice),
* ...
* OFWMETHOD(ofw_nextprop, fdt_nextprop),
* { 0, 0 }
* };
*
* static ofw_def_t ofw_fdt = {
* "ofw_fdt",
* fdt_methods,
* sizeof(fdt_softc), // or 0 if no softc
* };
*
* OFW_DEF(ofw_fdt);
*/
#include <sys/kobj.h>
struct ofw_kobj {
/*
* An OFW instance is a kernel object.
*/
KOBJ_FIELDS;
/*
* Utility elements that an instance may use
*/
struct mtx ofw_mtx; /* available for instance use */
void *ofw_iptr; /* instance data pointer */
/*
* Opaque data that can be overlaid with an instance-private
* structure. OFW code can test that this is large enough at
* compile time with a sizeof() test againt it's softc. There
* is also a run-time test when the MMU kernel object is
* registered.
*/
#define OFW_OPAQUESZ 64
u_int ofw_opaque[OFW_OPAQUESZ];
};
typedef struct ofw_kobj *ofw_t;
typedef struct kobj_class ofw_def_t;
#define ofw_method_t kobj_method_t
#define OFWMETHOD KOBJMETHOD
#define OFW_DEF(name) DATA_SET(ofw_set, name)
#endif /* _DEV_OFW_OFWVAR_H_ */