RawDataUnpacker.h

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/****************************************************************************
*
* This is a part of the TOTEM offline software.
* Authors: 
*   Jan Kašpar (jan.kaspar@gmail.com)
*   Nicola Minafra
*
****************************************************************************/

#ifndef EventFilter_CTPPSRawToDigi_RawDataUnpacker
#define EventFilter_CTPPSRawToDigi_RawDataUnpacker

#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "DataFormats/FEDRawData/interface/FEDRawData.h"
#include "DataFormats/CTPPSDigi/interface/TotemFEDInfo.h"

#include "EventFilter/CTPPSRawToDigi/interface/VFATFrameCollection.h"
#include "EventFilter/CTPPSRawToDigi/interface/SimpleVFATFrameCollection.h"

//----------------------------------------------------------------------------------------------------

namespace ctpps
{
  class RawDataUnpacker
  {
    public:
      typedef uint64_t word;

      enum { vmCluster = 0x80, vmRaw = 0x90, vmDiamondCompact = 0xB0 };

      // list of headers for all words encountered in diamond data frames
      static constexpr unsigned int VFAT_DIAMOND_HEADER_OF_WORD_2 = 0x7800;
      static constexpr unsigned int VFAT_DIAMOND_HEADER_OF_WORD_3 = 0x7000;
      static constexpr unsigned int VFAT_DIAMOND_HEADER_OF_WORD_5 = 0x6800;
      static constexpr unsigned int VFAT_DIAMOND_HEADER_OF_WORD_7 = 0x6000;
      static constexpr unsigned int VFAT_HEADER_OF_EC = 0xC000;

      RawDataUnpacker() {}
    
      RawDataUnpacker(const edm::ParameterSet &conf);

      int Run(int fedId, const FEDRawData &data, std::vector<TotemFEDInfo> &fedInfoColl, SimpleVFATFrameCollection &coll) const;

      int ProcessOptoRxFrame(const word *buf, unsigned int frameSize, TotemFEDInfo &fedInfo, SimpleVFATFrameCollection *fc) const;

      int ProcessOptoRxFrameSerial(const word *buffer, unsigned int frameSize, SimpleVFATFrameCollection *fc) const;

      int ProcessOptoRxFrameParallel(const word *buffer, unsigned int frameSize, TotemFEDInfo &fedInfo, SimpleVFATFrameCollection *fc) const;

      int ProcessVFATDataParallel(const uint16_t *buf, unsigned int maxWords, unsigned int OptoRxId, SimpleVFATFrameCollection *fc) const;

    private:
      unsigned char verbosity;
  };
}

#endif