| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394 |
- /*
- * Library: libcrc
- * File: include/checksum.h
- * Author: Lammert Bies
- *
- * This file is licensed under the MIT License as stated below
- *
- * Copyright (c) 1999-2016 Lammert Bies
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- *
- * Description
- * -----------
- * The headerfile include/checksum.h contains the definitions and prototypes
- * for routines that can be used to calculate several kinds of checksums.
- */
- #ifndef DEF_LIBCRC_CHECKSUM_H
- #define DEF_LIBCRC_CHECKSUM_H
- #include <stdint.h>
- /*
- * #define CRC_POLY_xxxx
- *
- * The constants of the form CRC_POLY_xxxx define the polynomials for some well
- * known CRC calculations.
- */
- #define CRC_POLY_16 0xA001
- #define CRC_POLY_32 0xEDB88320L
- #define CRC_POLY_CCITT 0x1021
- #define CRC_POLY_DNP 0xA6BC
- #define CRC_POLY_KERMIT 0x8408
- #define CRC_POLY_SICK 0x8005
- /*
- * #define CRC_START_xxxx
- *
- * The constants of the form CRC_START_xxxx define the values that are used for
- * initialization of a CRC value for common used calculation methods.
- */
- #define CRC_START_8 0x00
- #define CRC_START_16 0x0000
- #define CRC_START_MODBUS 0xFFFF
- #define CRC_START_XMODEM 0x0000
- #define CRC_START_CCITT_1D0F 0x1D0F
- #define CRC_START_CCITT_FFFF 0xFFFF
- #define CRC_START_KERMIT 0x0000
- #define CRC_START_SICK 0x0000
- #define CRC_START_DNP 0x0000
- #define CRC_START_32 0xFFFFFFFFL
- /*
- * Prototype list of global functions
- */
- unsigned char * checksum_NMEA( const unsigned char *input_str, unsigned char *result );
- uint8_t crc_8( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_16( const unsigned char *input_str, size_t num_bytes );
- uint32_t crc_32( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_ccitt_1d0f( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_ccitt_ffff( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_dnp( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_kermit( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_modbus( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_sick( const unsigned char *input_str, size_t num_bytes );
- uint16_t crc_xmodem( const unsigned char *input_str, size_t num_bytes );
- uint8_t update_crc_8( uint8_t crc, unsigned char c );
- uint16_t update_crc_16( uint16_t crc, unsigned char c );
- uint32_t update_crc_32( uint32_t crc, unsigned char c );
- uint16_t update_crc_ccitt( uint16_t crc, unsigned char c );
- uint16_t update_crc_dnp( uint16_t crc, unsigned char c );
- uint16_t update_crc_kermit( uint16_t crc, unsigned char c );
- uint16_t update_crc_sick( uint16_t crc, unsigned char c, unsigned char prev_byte );
- #endif // DEF_LIBCRC_CHECKSUM_H
|
