c4e20cad00
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
67 lines
3.0 KiB
C
67 lines
3.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2005, Sam Leffler <sam@errno.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_FIRMWARE_H_
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#define _SYS_FIRMWARE_H_
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/*
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* Loadable firmware support.
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*
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* The firmware abstraction provides an interface for loading firmware
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* images into the kernel and making them available to clients.
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*
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* Firmware images are usually embedded in kernel loadable modules that can
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* be loaded on-demand or pre-loaded as desired. Modules may contain
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* one or more firmware images that are stored as opaque data arrays
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* and registered with a unique string name. Clients request
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* firmware by name, and are returned a struct firmware * below on success.
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* The kernel keeps track of references to firmware images to allow/prevent
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* module/data unload.
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*
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* When multiple images are stored in one module, the first image is
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* treated as the master with the other images holding references
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* to it. This means that to unload the module each dependent/subimage
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* must first have its references removed.
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* In order for automatic loading to work, the master image must have
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* the same name as the module it is embedded into.
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*/
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struct firmware {
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const char *name; /* system-wide name */
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const void *data; /* location of image */
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size_t datasize; /* size of image in bytes */
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unsigned int version; /* version of the image */
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};
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const struct firmware *firmware_register(const char *,
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const void *, size_t, unsigned int, const struct firmware *);
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int firmware_unregister(const char *);
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const struct firmware *firmware_get(const char *);
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#define FIRMWARE_UNLOAD 0x0001 /* unload if unreferenced */
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void firmware_put(const struct firmware *, int);
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#endif /* _SYS_FIRMWARE_H_ */
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