/*
* cyclic redundancy check 16 bit
* Copyright (C) 1999 Christian Wolff, 2004 Oskar Schirmer
* for Convergence Integrated Media GmbH (http://www.convergence.de)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define MSBFCOEFF(x) | (1UL << x)
#define POLYNOMIAL_16_MSBF 0 \
MSBFCOEFF(0) \
MSBFCOEFF(1) \
MSBFCOEFF(5) \
MSBFCOEFF(12)
#define CRC_INIT_16 ((uint16_t)(-1))
#define update_crc_16(crc, data) \
((crc << 8) ^ crc_16_table[((int)(crc >> 8 ) ^ (data)) & 0xFF])
extern uint16_t crc_16_table[256];
extern void gen_crc16_table();
extern uint16_t update_crc_16_block(uint16_t crc, char *data_block_ptr, int data_block_size);
extern void crc16_calc (char *data,
int size,
char *crc);
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