git.zerfleddert.de Git - proxmark3-svn/blob - common/crc16.h

   1 //-----------------------------------------------------------------------------
   2 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   3 // at your option, any later version. See the LICENSE.txt file for the text of
   4 // the license.
   5 //-----------------------------------------------------------------------------
   6 // CRC16
   7 //-----------------------------------------------------------------------------
   8 #ifndef __CRC16_H
   9 #define __CRC16_H
  10
  11 #include <stdint.h>
  12 #include "util.h"   // SwapBits
  13
  14 unsigned short update_crc16(unsigned short crc, unsigned char c);
  15 uint16_t crc16(uint8_t const *message, int length, uint16_t remainder, uint16_t polynomial);
  16 uint16_t crc16_ccitt(uint8_t const *message, int length);
  17 uint16_t crc16_ccitt_kermit(uint8_t const *message, int length);
  18 #endif