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    1 /****************************************************************************
    2 
    3   Filename:     crc16.h
    4   Description:  Cyclic Redundancy Check 16 functions
    5   Created:      24-Feb-1999
    6 
    7   Copyright (c) 2002-2003, Indigo Systems Corporation
    8   All rights reserved.
    9 
   10   Redistribution and use in source and binary forms, with or without
   11   modification, are permitted provided that the following conditions are met:
   12 
   13   Redistributions of source code must retain the above copyright notice, this
   14   list of conditions and the following disclaimer.
   15 
   16   Redistributions in binary form must reproduce the above copyright notice,
   17   this list of conditions and the following disclaimer in the documentation
   18   and/or other materials provided with the distribution.
   19 
   20   Neither the name of the Indigo Systems Corporation nor the names of its
   21   contributors may be used to endorse or promote products derived from this
   22   software without specific prior written permission.
   23 
   24   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   25   AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   26   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   27   ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   28   LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   29   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   30   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   31   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   32   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   33   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   34   THE POSSIBILITY OF SUCH DAMAGE.
   35 
   36 ****************************************************************************/
   37 
   38 #define _CRC16_BYTES    1       /* ig */
   39 
   40 #ifndef __CRC16_H__
   41 #define __CRC16_H__
   42 
   43 #ifdef __cplusplus
   44 extern "C"
   45 {
   46 #endif
   47 
   48 typedef unsigned short CRC16;
   49 
   50 #ifdef _OPT_SIZE
   51     int ByteCRC16(int value, int crcin);
   52 #else
   53     CRC16 CalcCRC16Words(unsigned int count, short *buffer);
   54 #endif
   55 
   56 #ifdef _CRC16_BYTES
   57     CRC16 CalcCRC16Bytes(unsigned int count, char *buffer);
   58 #endif
   59 
   60 #ifdef __cplusplus
   61 }
   62 #endif
   63 
   64 #endif /* __CRC16_H__ */
   65 
   66 
   67