106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
|
///\file
|
||
|
|
|
||
|
|
/******************************************************************************
|
||
|
|
The MIT License(MIT)
|
||
|
|
|
||
|
|
Embedded Template Library.
|
||
|
|
https://github.com/ETLCPP/etl
|
||
|
|
https://www.etlcpp.com
|
||
|
|
|
||
|
|
Copyright(c) 2023 John Wellbelove
|
||
|
|
|
||
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
of this software and associated documentation files(the "Software"), to deal
|
||
|
|
in the Software without restriction, including without limitation the rights
|
||
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
|
||
|
|
copies of the Software, and to permit persons to whom the Software is
|
||
|
|
furnished to do so, subject to the following conditions :
|
||
|
|
|
||
|
|
The above copyright notice and this permission notice shall be included in all
|
||
|
|
copies or substantial portions of the Software.
|
||
|
|
|
||
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
|
||
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
SOFTWARE.
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#ifndef ETL_CRC1_INCLUDED
|
||
|
|
#define ETL_CRC1_INCLUDED
|
||
|
|
|
||
|
|
#include "platform.h"
|
||
|
|
#include "frame_check_sequence.h"
|
||
|
|
#include "binary.h"
|
||
|
|
|
||
|
|
namespace etl
|
||
|
|
{
|
||
|
|
//***************************************************************************
|
||
|
|
/// fnv_1 policy.
|
||
|
|
/// Calculates FNV1.
|
||
|
|
//***************************************************************************
|
||
|
|
struct crc1_policy
|
||
|
|
{
|
||
|
|
typedef uint8_t value_type;
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
odd_parity = 1,
|
||
|
|
even_parity = 0
|
||
|
|
};
|
||
|
|
|
||
|
|
//*********************************
|
||
|
|
value_type initial() const
|
||
|
|
{
|
||
|
|
return even_parity;
|
||
|
|
}
|
||
|
|
|
||
|
|
//*********************************
|
||
|
|
uint8_t add(int parity, uint8_t value) const
|
||
|
|
{
|
||
|
|
return parity ^ etl::parity(value);
|
||
|
|
}
|
||
|
|
|
||
|
|
//*********************************
|
||
|
|
uint8_t final(uint8_t parity) const
|
||
|
|
{
|
||
|
|
return parity;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
class crc1 : public etl::frame_check_sequence<crc1_policy>
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
|
||
|
|
enum
|
||
|
|
{
|
||
|
|
odd_parity = crc1_policy::odd_parity,
|
||
|
|
even_parity = crc1_policy::even_parity
|
||
|
|
};
|
||
|
|
|
||
|
|
//*************************************************************************
|
||
|
|
/// Default constructor.
|
||
|
|
//*************************************************************************
|
||
|
|
crc1()
|
||
|
|
{
|
||
|
|
this->reset();
|
||
|
|
}
|
||
|
|
|
||
|
|
//*************************************************************************
|
||
|
|
/// Constructor from range.
|
||
|
|
/// \param begin Start of the range.
|
||
|
|
/// \param end End of the range.
|
||
|
|
//*************************************************************************
|
||
|
|
template<typename TIterator>
|
||
|
|
crc1(TIterator begin, const TIterator end)
|
||
|
|
{
|
||
|
|
this->reset();
|
||
|
|
this->add(begin, end);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|