mirror of https://gerrit.osmocom.org/simtrace2
65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2008, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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#ifndef _HAMMING_
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#define _HAMMING_
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/*------------------------------------------------------------------------------
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* Defines
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*------------------------------------------------------------------------------*/
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/**
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* These are the possible errors when trying to verify a block of data encoded
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* using a Hamming code:
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*
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* \section Errors
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* - Hamming_ERROR_SINGLEBIT
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* - Hamming_ERROR_ECC
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* - Hamming_ERROR_MULTIPLEBITS
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*/
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/** A single bit was incorrect but has been recovered. */
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#define Hamming_ERROR_SINGLEBIT 1
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/** The original code has been corrupted. */
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#define Hamming_ERROR_ECC 2
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/** Multiple bits are incorrect in the data and they cannot be corrected. */
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#define Hamming_ERROR_MULTIPLEBITS 3
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/*------------------------------------------------------------------------------
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* Exported functions
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*------------------------------------------------------------------------------*/
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extern void Hamming_Compute256x( const uint8_t* pucData, uint32_t dwSize, uint8_t* pucCode ) ;
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extern uint8_t Hamming_Verify256x( uint8_t* pucData, uint32_t dwSize, const uint8_t* pucCode ) ;
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#endif /* _HAMMING_ */
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