2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2017 Kyle Evans <kevans@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include "opt_platform.h"
34 #include <sys/types.h>
37 #include <dev/ofw/ofw_bus.h>
43 TAILQ_ENTRY(syscon) syscon_link; /* Global list entry */
45 device_t pdev; /* provider device */
47 phandle_t ofw_node; /* OFW node for syscon */
49 void *softc; /* provider softc */
53 * Shorthands for constructing method tables.
55 #define SYSCONMETHOD KOBJMETHOD
56 #define SYSCONMETHOD_END KOBJMETHOD_END
57 #define syscon_method_t kobj_method_t
58 #define syscon_class_t kobj_class_t
59 DECLARE_CLASS(syscon_class);
61 void *syscon_get_softc(struct syscon *syscon);
66 struct syscon *syscon_create(device_t pdev, syscon_class_t syscon_class);
67 struct syscon *syscon_register(struct syscon *syscon);
68 int syscon_unregister(struct syscon *syscon);
71 struct syscon *syscon_create_ofw_node(device_t pdev,
72 syscon_class_t syscon_class, phandle_t node);
73 phandle_t syscon_get_ofw_node(struct syscon *syscon);
74 int syscon_get_by_ofw_property(device_t consumer, phandle_t node, char *name,
75 struct syscon **syscon);
78 #endif /* DEV_SYSCON_H */