38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
//-----------------------------------------------------------------------------
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// CRC16
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//-----------------------------------------------------------------------------
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#ifndef __CRC16_H
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#define __CRC16_H
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#include <stdint.h>
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#include "util.h" // SwapBits
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#define CRC16_POLY_CCITT 0x1021
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#define CRC16_POLY 0x8408
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uint16_t update_crc16_ex( uint16_t crc, uint8_t c, uint16_t polynomial );
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uint16_t update_crc16(uint16_t crc, uint8_t c);
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uint16_t crc16(uint8_t const *message, size_t length, uint16_t remainder, uint16_t polynomial, bool refin, bool refout);
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uint16_t crc16_ccitt(uint8_t const *d, size_t n);
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uint16_t crc16_ccitt_kermit(uint8_t const *d, size_t n);
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uint16_t crc16_kermit(uint8_t const *d, size_t n);
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uint16_t crc16_xmodem(uint8_t const *d, size_t n);
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uint16_t crc16_x25(uint8_t const *d, size_t n);
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uint16_t crc16_a(uint8_t const *d, size_t n);
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uint16_t crc16_iclass(uint8_t const *d, size_t size);
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//checks
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bool check_crc16_ccitt(uint8_t const *d, size_t n);
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//felica imp
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void felica_test();
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void init_crcccitt_tab( void );
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uint16_t update_crc_ccitt( uint16_t crc,uint8_t c );
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#endif
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