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fcs.h
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1 /*************************************************************************************************/
2 /*!
3  * \file fcs.h
4  *
5  * \brief FCS utilities (3GPP TS 27.010).
6  *
7  * Copyright (c) 2010-2017 Arm Ltd. All Rights Reserved.
8  *
9  * Copyright (c) 2019 Packetcraft, Inc.
10  *
11  * Licensed under the Apache License, Version 2.0 (the "License");
12  * you may not use this file except in compliance with the License.
13  * You may obtain a copy of the License at
14  *
15  * http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing, software
18  * distributed under the License is distributed on an "AS IS" BASIS,
19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20  * See the License for the specific language governing permissions and
21  * limitations under the License.
22  */
23 /*************************************************************************************************/
24 #ifndef FCS_H
25 #define FCS_H
26 
27 #ifdef __cplusplus
28 extern "C" {
29 #endif
30 
31 /*************************************************************************************************/
32 /*!
33  * \brief Calculate the FCS of the given buffer.
34  *
35  * \param len Length of the buffer.
36  * \param pBuf Buffer to compute the CRC.
37  *
38  * \return FCS value.
39  */
40 /*************************************************************************************************/
41 uint8_t FcsCalc(uint32_t len, const uint8_t *pBuf);
42 
43 /*************************************************************************************************/
44 /*!
45  * \brief Computes resultant CRC by appending one byte.
46  *
47  * \param pFcs CRC value on which to append the byte.
48  * \param byte Byte to be added to CRC computation.
49  *
50  * \return FCS value.
51  */
52 /*************************************************************************************************/
53 void FcsAddByte(uint8_t *pFcs, uint8_t byte);
54 
55 #ifdef __cplusplus
56 };
57 #endif
58 
59 #endif /* FCS_H */
FcsAddByte
void FcsAddByte(uint8_t *pFcs, uint8_t byte)
Computes resultant CRC by appending one byte.
FcsCalc
uint8_t FcsCalc(uint32_t len, const uint8_t *pBuf)
Calculate the FCS of the given buffer.
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