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29 lines
1.2 KiB
C
29 lines
1.2 KiB
C
/*
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* Copyright 2024 Google LLC
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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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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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/*
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* Calculate an 8-bit CRC of a given byte sequence. Note that this is not using the standard CRC-8
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* polynomial, because the standard polynomial isn't very good. If the big_endian flag is set, the
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* crc will be calculated by going through the data in reverse order (high->low index).
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*/
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uint8_t crc8_calculate_bytes(const uint8_t *data, uint32_t data_length, bool big_endian);
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void crc8_calculate_bytes_streaming(const uint8_t *data, uint32_t data_length, uint8_t *crc,
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bool big_endian);
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