/*
   *	crc-itu-t.h - CRC ITU-T V.41 routine
   *
   * Implements the standard CRC ITU-T V.41:
   *   Width 16
   *   Poly  0x0x1021 (x^16 + x^12 + x^15 + 1)
   *   Init  0
   *
   * This source code is licensed under the GNU General Public License,
   * Version 2. See the file COPYING for more details.
   */
  
  #ifndef CRC_ITU_T_H
  #define CRC_ITU_T_H
  
  #include <linux/types.h>
  
  extern u16 const crc_itu_t_table[256];
  
  extern u16 crc_itu_t(u16 crc, const u8 *buffer, size_t len);
  
  static inline u16 crc_itu_t_byte(u16 crc, const u8 data)
  {
  	return (crc << 8) ^ crc_itu_t_table[((crc >> 8) ^ data) & 0xff];
  }
  
  #endif /* CRC_ITU_T_H */