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version 1.1, 2008/11/05 17:02:55
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version 1.3, 2010/06/13 16:13:51
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| #define __AITCRC_H |
#define __AITCRC_H |
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#include <sys/types.h> |
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| #define REVOPTS_REVERTBYTE 1 |
#define REVOPTS_REVERTBYTE 1 |
| #define REVOPTS_REVERTCRC 2 |
#define REVOPTS_REVERTCRC 2 |
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| struct tagCRCPoly { |
struct tagCRCPoly { |
| u_char poly_bits; |
u_char poly_bits; |
| u_long poly_num; | u_int poly_num; |
| char poly_name[19]; |
char poly_name[19]; |
| }; // size 24bytes |
}; // size 24bytes |
| typedef struct tagCRCPoly crcPoly_t; |
typedef struct tagCRCPoly crcPoly_t; |
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// ------------------------------------------------------- |
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// crc_GetErrno() Get error code of last operation |
| inline int crc_GetErrno(); |
inline int crc_GetErrno(); |
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// crc_GetError() Get error text of last operation |
| inline const char *crc_GetError(); |
inline const char *crc_GetError(); |
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// ------------------------------------------------------- |
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| inline u_long crcReflect(u_long crcNum, u_char crcBits); | /* |
| inline u_long crcCalc(u_char * __restrict psBuf, u_int bufLen, u_char crcBits, u_char RevOpts, u_long initCRC, u_long xorCRC); | * crcReflect() Reflect all bits of number |
| | * @crcNum = Number for reflection |
| | * @crcBits = Number width bits |
| | * return: -1 error, !=-1 reflecting number |
| | */ |
| | inline u_int crcReflect(u_int crcNum, u_char crcBits); |
| | /* |
| | * crcCalc() Generic CRC calculation function for many sub variants of CRC algorithms |
| | * @psBuf = Data for calculation |
| | * @bufLen = Length of data |
| | * @crcBits = CRC algorithm bits (1, 4, 5, 6, 7, 8, 10, 11, 12, 15, 16, 24, 30, 32) |
| | * @RevOpts = Options for computation (REVOPTS_REVERTBYTE, REVOPTS_REVERTCRC) |
| | * @initCRC = Initial CRC value |
| | * @xorCRC = Last xor CRC value |
| | * return: -1 error, !=-1 CRC checksum |
| | */ |
| | inline u_int crcCalc(u_char * __restrict psBuf, u_int bufLen, u_char crcBits, |
| | u_char RevOpts, u_int initCRC, u_int xorCRC); |
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/* |
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* crcIP() Checksum in IP communication |
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* @nBuf = Data for calculation |
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* @bufLen = Length of data |
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* return: -1 error, !=-1 Checksum |
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*/ |
| inline u_short crcIP(u_short * __restrict nBuf, int bufLen); |
inline u_short crcIP(u_short * __restrict nBuf, int bufLen); |
| inline u_long crcFletcher(u_short * __restrict nBuf, int bufLen); | /* |
| inline u_long crcAdler(u_char * __restrict psBuf, int bufLen); | * crcFletcher16() Fletcher-16 Checksum computing |
| | * @nBuf = Data for calculation |
| | * @bufLen = Length of data |
| | * return: -1 error, !=-1 Checksum |
| | */ |
| | inline u_short crcFletcher16(u_short * __restrict nBuf, int bufLen); |
| | /* |
| | * crcFletcher() Fletcher-32 Checksum computing |
| | * @nBuf = Data for calculation |
| | * @bufLen = Length of data |
| | * return: -1 error, !=-1 Checksum |
| | */ |
| | inline u_int crcFletcher(u_short * __restrict nBuf, int bufLen); |
| | /* |
| | * crcAdler() crcAdler-32 Checksum computing |
| | * @psBuf = Data for calculation |
| | * @bufLen = Length of data |
| | * return: -1 error, !=-1 Checksum |
| | */ |
| | inline u_int crcAdler(u_char * __restrict psBuf, int bufLen); |
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| #define crcEther(psBuf, bufLen) crcCalc((psBuf), (bufLen), 32, 3, 0xFFFFFFFF, 0xFFFFFFFF) | /* |
| | * crcEther() Checksum in Ethernet communication |
| | * @psBuf = Data for calculation |
| | * @bufLen = Length of data |
| | * return: -1 error, !=-1 Checksum |
| | */ |
| | #define crcEther(psBuf, bufLen) crcCalc((psBuf), (bufLen), 32, 3, 0xFFFFFFFF, 0xFFFFFFFF) |
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| | /* |
| | * crcPelco() Calculate Pelco D/P CRC |
| | * @ver = Pelco protocol version (Dd | Pp) |
| | * @pkt = Packet for calculate crc |
| | * return: crc for packet, if is 0 check and crc_GetErrno() == 1 |
| | Pelco protocol not supported |
| | */ |
| | inline u_char crcPelco(u_char ver, u_char *pkt); |
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| #endif |
#endif |