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Crc.hpp

00001 /*******************************************************************************
00002 * Copyright (C) Maxim Integrated Products, Inc., All Rights Reserved.
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00009 * Software is furnished to do so, subject to the following conditions:
00010 *
00011 * The above copyright notice and this permission notice shall be included
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00013 *
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00021 *
00022 * Except as contained in this notice, the name of Maxim Integrated
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00031 *******************************************************************************/
00032 
00033 #ifndef MaximInterfaceCore_Crc_hpp
00034 #define MaximInterfaceCore_Crc_hpp
00035 
00036 #include <stddef.h>
00037 #include <stdint.h>
00038 #include "Config.hpp"
00039 #include "span.hpp"
00040 
00041 namespace MaximInterfaceCore {
00042 
00043 /// @brief Perform a CRC8 calculation.
00044 /// @param crc Beginning state of the CRC generator.
00045 /// @param data Data to pass though the CRC generator.
00046 /// @returns The calculated CRC8.
00047 MaximInterfaceCore_EXPORT uint_fast8_t calculateCrc8(uint_fast8_t crc,
00048                                                      uint_fast8_t data);
00049 
00050 /// @brief
00051 /// Perform a CRC8 calculation with the CRC generator initialized to zero.
00052 /// @param data Data to pass though the CRC generator.
00053 /// @returns The calculated CRC8.
00054 inline uint_fast8_t calculateCrc8(uint_fast8_t data) {
00055   return calculateCrc8(0, data);
00056 }
00057 
00058 /// @brief Perform a CRC8 calculation with variable length data.
00059 /// @param crc Beginning state of the CRC generator.
00060 /// @param[in] data Data array to pass through the CRC generator.
00061 /// @returns The calculated CRC8.
00062 MaximInterfaceCore_EXPORT uint_fast8_t
00063 calculateCrc8(uint_fast8_t crc, span<const uint_least8_t> data);
00064 
00065 /// @brief
00066 /// Perform a CRC8 calculation with variable length data and the CRC generator
00067 /// initialized to zero.
00068 /// @param[in] data Data array to pass through the CRC generator.
00069 /// @returns The calculated CRC8.
00070 inline uint_fast8_t calculateCrc8(span<const uint_least8_t> data) {
00071   return calculateCrc8(0, data);
00072 }
00073 
00074 /// @brief Perform a CRC16 calculation.
00075 /// @param crc Beginning state of the CRC generator.
00076 /// @param data Data to pass though the CRC generator.
00077 /// @returns The calculated CRC16.
00078 MaximInterfaceCore_EXPORT uint_fast16_t calculateCrc16(uint_fast16_t crc,
00079                                                        uint_fast8_t data);
00080 
00081 /// @brief
00082 /// Perform a CRC16 calculation with the CRC generator initialized to zero.
00083 /// @param data Data to pass though the CRC generator.
00084 /// @returns The calculated CRC16.
00085 inline uint_fast16_t calculateCrc16(uint_fast8_t data) {
00086   return calculateCrc16(0, data);
00087 }
00088 
00089 /// @brief Perform a CRC16 calculation with variable length data.
00090 /// @param crc Beginning state of the CRC generator.
00091 /// @param[in] data Data array to pass through the CRC generator.
00092 /// @returns The calculated CRC16.
00093 MaximInterfaceCore_EXPORT uint_fast16_t
00094 calculateCrc16(uint_fast16_t crc, span<const uint_least8_t> data);
00095 
00096 /// @brief
00097 /// Perform a CRC16 calculation with variable length data and the CRC generator
00098 /// initialized to zero.
00099 /// @param[in] data Data array to pass through the CRC generator.
00100 /// @returns The calculated CRC16.
00101 inline uint_fast16_t calculateCrc16(span<const uint_least8_t> data) {
00102   return calculateCrc16(0, data);
00103 }
00104 
00105 } // namespace MaximInterfaceCore
00106 
00107 #endif