TotemSampicFrame.h

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/****************************************************************************
*
* This is a part of the TOTEM offline software.
* Authors:
*   Nicola Minafra
*
****************************************************************************/

#ifndef EventFilter_CTPPSRawToDigi_TotemSampicFrame
#define EventFilter_CTPPSRawToDigi_TotemSampicFrame

#include <vector>
#include <cstddef>
#include <cstdint>
#include <iomanip>
#include <bitset>

#include "EventFilter/CTPPSRawToDigi/interface/VFATFrame.h"

enum TotemSampicConstant
{
 hwId_Position = 0, // hwId_Size = 1,
  controlBits0_Position = 1,
  controlBits1_Position = 2,
  controlBits2_Position = 3,
  controlBits3_Position = 4,
  controlBits4_Position = 5,
  controlBits5_Position = 6,
  fpgaTime_Position = 7, // fpgaTime_Size = 5,
  timestampA_Position = 12, // timestampA_Size = 2,
  timestampB_Position = 14, // timestampB_Size = 2,
  cellInfo_Position = 16, // cellInfo_Size = 2,
  planeChannelId_Position = 18, // planeChannelId_Size = 1,
  reserved_Position = 19, // reserved_Size = 5,

  boardId_Position = 0, // boardId_Size = 1,
  l1ATimestamp_Position = 1, // l1ATimestamp_Size = 5,
  bunchNumber_Position = 6, // bunchNumber_Size = 2,
  orbitNumber_Position = 8, // orbitNumber_Size = 4,
  eventNumber_Position = 12, // eventNumber_Size = 4,
  channelMap_Position = 16, // channelMap_Size = 2,
  l1ALatency_Position = 18, // l1ALatency_Size = 2,
  numberOfSamples_Position = 20, // numberOfSamples_Size = 1,
  offsetOfSamples_Position = 21, // offsetOfSamples_Size = 1,
  fwVersion_Position = 22, // fwVersion_Size = 1,
  pllInfo_Position = 23, // pllInfo_Size = 1,

  numberOfSamples = 24,
  controlBits3 = 0x69,
  cellInfo_Mask = 0x3F,

};

template <typename T>
T grayToBinary( const T& gcode_data )
{
    //b[0] = g[0]
  T binary = gcode_data & ( 0x0001 << ( 8*sizeof(T) - 1 ) ); // MSB is the same

  //b[i] = g[i] xor b[i-1]
  for (unsigned short int i = 1; i < 8*sizeof(T); ++i)
    binary |= ( gcode_data ^ ( binary >> 1 ) ) & (0x0001 << ( 8*sizeof(T) - i - 1 ) );

  return binary;
}

class TotemSampicFrame
{
  public:
    TotemSampicFrame( const uint8_t* chInfoPtr, const uint8_t* chDataPtr, const uint8_t* eventInfoPtr ) :
      totemSampicInfoPtr_( chInfoPtr ), totemSampicDataPtr_( chDataPtr ), totemSampicEventInfoPtr_( eventInfoPtr ),
      status_( 0 ) {
      if ( chInfoPtr != nullptr && chDataPtr != nullptr && eventInfoPtr != nullptr && totemSampicInfoPtr_[ TotemSampicConstant::controlBits3_Position ] == TotemSampicConstant::controlBits3 )
          status_ = 1;
    }
    ~TotemSampicFrame() {}

    void printRaw( bool binary = false ) const {
      std::cout << "Event Info: " << std::endl;
      printRawBuffer( (uint16_t*) totemSampicEventInfoPtr_ );

      std::cout << "Channel Info: " << std::endl;
      printRawBuffer( (uint16_t*) totemSampicInfoPtr_ );

      std::cout << "Channel Data: " << std::endl;
      printRawBuffer( (uint16_t*) totemSampicDataPtr_ );
    }

    void print() const {
      std::bitset<16> bitsChannelMap( getChannelMap() );
      std::bitset<16> bitsPLLInfo( getPLLInfo() );
      std::cout << "TotemSampicFrame:\nEvent:"
          << "\nHardwareId (Event):\t" << std::hex << (unsigned int) getEventHardwareId()
          << "\nL1A Timestamp:\t" << std::dec << getL1ATimestamp()
          << "\nL1A Latency:\t" << std::dec << getL1ALatency()
          << "\nBunch Number:\t" << std::dec << getBunchNumber()
          << "\nOrbit Number:\t" << std::dec << getOrbitNumber()
          << "\nEvent Number:\t" << std::dec << getEventNumber()
          << "\nChannels fired:\t" << std::hex << bitsChannelMap.to_string()
          << "\nNumber of Samples:\t" << std::dec << getNumberOfSentSamples()
          << "\nOffset of Samples:\t" << std::dec << (int) getOffsetOfSamples()
          << "\nFW Version:\t" << std::hex << (int) getFWVersion()
          << "\nChannel:\nHardwareId:\t" << std::hex << (unsigned int) getHardwareId()
          << "\nFPGATimestamp:\t" << std::dec << getFPGATimestamp()
          << "\nTimestampA:\t" << std::dec << getTimestampA()
          << "\nTimestampB:\t" << std::dec << getTimestampB()
          << "\nCellInfo:\t" << std::dec << getCellInfo()
          << "\nPlane:\t" << std::dec << getDetPlane()
          << "\nChannel:\t" << std::dec << getDetChannel()
          << "\nPLL Info:\t" << bitsPLLInfo.to_string()
          << std::endl << std::endl;
    }

    // All getters
    inline uint8_t getHardwareId() const {
      uint8_t tmp = 0;
      if ( status_ ) tmp = totemSampicInfoPtr_[ TotemSampicConstant::hwId_Position ];
      return tmp;
    }

    inline uint64_t getFPGATimestamp() const {
      uint64_t tmp = 0;
      if ( status_ ) {
        tmp = *( ( const uint64_t* ) ( totemSampicInfoPtr_ + TotemSampicConstant::fpgaTime_Position ) ) & 0xFFFFFFFFFF;
      }
      return tmp;
    }

    inline uint16_t getTimestampA() const {
      uint16_t tmp = 0;
      if ( status_ ) {
        tmp = *( ( const uint16_t* ) ( totemSampicInfoPtr_ + TotemSampicConstant::timestampA_Position ) );
      }
      tmp = 0xFFF - tmp;
      return grayToBinary<uint16_t> ( tmp );
    }

    inline uint16_t getTimestampB() const {
      uint16_t tmp = 0;
      if ( status_ ) {
        tmp = *( ( const uint16_t* ) ( totemSampicInfoPtr_ + TotemSampicConstant::timestampB_Position ) );
      }
      return grayToBinary<uint16_t> ( tmp );
    }

    inline uint16_t getCellInfo() const {
      uint16_t tmp = 0;
      if ( status_ )
        tmp = *( ( const uint16_t* ) ( totemSampicInfoPtr_ + TotemSampicConstant::cellInfo_Position ) );
      return tmp & TotemSampicConstant::cellInfo_Mask;
    }

    inline int getDetPlane() const {
      int tmp = 0;
      if ( status_ )
        tmp = ( totemSampicInfoPtr_[ planeChannelId_Position ] & 0xF0 ) >> 4;
      return tmp;
    }

    inline int getDetChannel() const {
      int tmp = 0;
      if ( status_ )
        tmp = totemSampicInfoPtr_[ planeChannelId_Position ] & 0x0F;
      return tmp;
    }

    const std::vector<uint8_t> getSamples() const {
      std::vector<uint8_t> samples;
      if ( status_ ) {
        samples.assign( totemSampicDataPtr_, totemSampicDataPtr_ + TotemSampicConstant::numberOfSamples );
        for ( auto it = samples.begin(); it != samples.end(); ++it )
          *it = grayToBinary<uint8_t>( *it );
      }
      return samples;
    }

    inline unsigned int getNumberOfSamples() const {
      return status_ * TotemSampicConstant::numberOfSamples;
    }

    // Event Info
    inline uint8_t getEventHardwareId() const {
      uint8_t tmp = 0;
      if ( status_ )
        tmp = totemSampicEventInfoPtr_[ TotemSampicConstant::boardId_Position ];
      return tmp;
    }

    inline uint64_t getL1ATimestamp() const {
      uint64_t tmp = 0;
      if ( status_ ) {
        tmp = *( ( const uint64_t* ) ( totemSampicEventInfoPtr_ + TotemSampicConstant::l1ATimestamp_Position ) ) & 0xFFFFFFFFFF;
      }
      return tmp;
    }

    inline uint16_t getBunchNumber() const
    {
      uint16_t tmp = 0;
      if ( status_ )
        tmp = *( ( const uint16_t* ) ( totemSampicEventInfoPtr_ + TotemSampicConstant::bunchNumber_Position ) );
      return tmp;
    }

    inline uint32_t getOrbitNumber() const
    {
      uint32_t tmp = 0;
      if ( status_ )
        tmp = *( ( const uint32_t* ) ( totemSampicEventInfoPtr_ + TotemSampicConstant::orbitNumber_Position ) );
      return tmp;
    }

    inline uint32_t getEventNumber() const
    {
      uint32_t tmp = 0;
      if ( status_ )
        tmp = *( ( const uint32_t* ) ( totemSampicEventInfoPtr_ + TotemSampicConstant::eventNumber_Position ) );
      return tmp;
    }

    inline uint16_t getChannelMap() const
    {
      uint16_t tmp = 0;
      if ( status_ )
        tmp = *( ( const uint16_t* ) ( totemSampicEventInfoPtr_ + TotemSampicConstant::channelMap_Position ) );
      return tmp;
    }

    inline uint16_t getL1ALatency() const
    {
      uint16_t tmp = 0;
      if ( status_ )
        tmp = *( ( const uint16_t* ) ( totemSampicEventInfoPtr_ + TotemSampicConstant::l1ALatency_Position ) );
      return tmp;
    }

    inline uint8_t getNumberOfSentSamples() const
    {
      uint8_t tmp = 0;
      if ( status_ ) tmp = totemSampicEventInfoPtr_[ TotemSampicConstant::numberOfSamples_Position ];
      return tmp;
    }

    inline uint8_t getOffsetOfSamples() const
    {
      uint8_t tmp = 0;
      if ( status_ ) tmp = totemSampicEventInfoPtr_[ TotemSampicConstant::offsetOfSamples_Position ];
      return tmp;
    }

    inline uint8_t getPLLInfo() const {
      uint8_t tmp = 0;
      if ( status_ ) tmp = totemSampicEventInfoPtr_[ pllInfo_Position ];
      return tmp;
    }

    inline uint8_t getFWVersion() const {
      uint8_t tmp = 0;
      if ( status_ ) tmp = totemSampicEventInfoPtr_[ fwVersion_Position ];
      return tmp;
    }

    inline bool valid() const {
      return status_ != 0;
    }

  protected:
    const uint8_t* totemSampicInfoPtr_;
    const uint8_t* totemSampicDataPtr_;
    const uint8_t* totemSampicEventInfoPtr_;

    int status_;

    inline void printRawBuffer( const uint16_t* buffer, const bool binary = false, const unsigned int size = 12 ) const {
      for ( unsigned int i = 0; i < size; i++ ) {
        if ( binary ) {
          std::bitset<16> bits( *( buffer++ ) );
          std::cout << bits.to_string() << std::endl;
        }
        else
          std::cout << std::setfill( '0' ) << std::setw( 4 ) << std::hex << *( buffer++ ) << std::endl;
      }
      std::cout << std::endl;
    }

};


#endif