46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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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 _NANOHUB_CRC_H_
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#define _NANOHUB_CRC_H_
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#include <stddef.h>
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#include <stdint.h>
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#define CRC_RESIDUE 0xC704DD7BUL
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#define CRC_INIT 0xFFFFFFFFUL
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/**
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* Implements CRC with the following parameters:
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*
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* Width: 32
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* Poly: 04C11DB7
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* Init: FFFFFFFF
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* RefIn: False
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* RefOut: False
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* XorOut: 00000000
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*
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* The CRC implementation will pad the buffer with zeroes to the nearest
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* multiple of 4 bytes (if necessary).
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*/
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uint32_t crc32(const void *buf, size_t size, uint32_t crc);
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/* concrete public implementation of crc32() w/o HW acceleration */
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uint32_t soft_crc32(const void *buf, size_t size, uint32_t crc);
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#endif /* _NANOHUB_CRC_H_ */
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