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43 lines
1.6 KiB
43 lines
1.6 KiB
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef UFDT_OVERLAY_H
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#define UFDT_OVERLAY_H
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#include <libfdt.h>
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/* Given a buffer in RAM containing the contents of a .dtb file,
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* it initializes an FDT in-place and returns a pointer to the
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* given buffer, or NULL in case of error.
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* In case of error, it may printf() diagnostic messages.
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*/
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struct fdt_header *ufdt_install_blob(void *blob, size_t blob_size);
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/* Given a main_fdt_header buffer and an overlay_fdtp buffer containing the
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* contents of a .dtbo file, it creates a new FDT containing the applied
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* overlay_fdtp in a dto_malloc'd buffer and returns it, or NULL in case of
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* error.
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* It is allowed to modify the buffers (both main_fdt_header and overlay_fdtp
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* buffer) passed in.
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* It does not dto_free main_fdt_header and overlay_fdtp buffer passed in.
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*/
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struct fdt_header *ufdt_apply_overlay(struct fdt_header *main_fdt_header,
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size_t main_fdt_size,
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void *overlay_fdtp,
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size_t overlay_size);
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#endif /* UFDT_OVERLAY_H */
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