2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005 Peter Grehan
5 * Copyright (c) 2008 Nathan Whitehorn
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #ifndef _DEV_OFW_OFWVAR_H_
33 #define _DEV_OFW_OFWVAR_H_
36 * An Open Firmware client implementation is declared with a kernel object and
37 * an associated method table, similar to a device driver.
41 * static ofw_method_t fdt_methods[] = {
42 * OFWMETHOD(ofw_init, fdt_init),
43 * OFWMETHOD(ofw_finddevice, fdt_finddevice),
45 * OFWMETHOD(ofw_nextprop, fdt_nextprop),
49 * static ofw_def_t ofw_fdt = {
52 * sizeof(fdt_softc), // or 0 if no softc
62 * An OFW instance is a kernel object.
67 * Utility elements that an instance may use
69 struct mtx ofw_mtx; /* available for instance use */
70 void *ofw_iptr; /* instance data pointer */
73 * Opaque data that can be overlaid with an instance-private
74 * structure. OFW code can test that this is large enough at
75 * compile time with a sizeof() test againt it's softc. There
76 * is also a run-time test when the MMU kernel object is
79 #define OFW_OPAQUESZ 64
80 u_int ofw_opaque[OFW_OPAQUESZ];
83 typedef struct ofw_kobj *ofw_t;
84 typedef struct kobj_class ofw_def_t;
86 #define ofw_method_t kobj_method_t
87 #define OFWMETHOD KOBJMETHOD
89 #define OFW_DEF(name) DATA_SET(ofw_set, name)
91 #endif /* _DEV_OFW_OFWVAR_H_ */