CTF.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef O2_FT0_CTF_H
#define O2_FT0_CTF_H
 
#include <vector>
#include <Rtypes.h>
#include "DetectorsCommonDataFormats/EncodedBlocks.h"
 
namespace o2
{
namespace ft0
{
 
struct CTFHeader : public o2::ctf::CTFDictHeader {
  uint32_t nTriggers = 0;     
  uint32_t firstOrbit = 0;    
  uint16_t firstBC = 0;       
  uint16_t triggerGate = 192; // trigger gate used at encoding
  ClassDefNV(CTFHeader, 3);
};
 
struct CompressedDigits {
 
  CTFHeader header;
 
  // trigger data
  std::vector<uint8_t> trigger;    // trigger bits
  std::vector<int16_t> bcInc;      // increment in BC if the same orbit, otherwise abs bc
  std::vector<int32_t> orbitInc;   // increment in orbit
  std::vector<uint8_t> nChan;      // number of fired channels
  std::vector<uint8_t> eventStatus; // special flags about event conditions: pile-up, not use for collision time, not use for event plane, etc.
 
  // channel data
  std::vector<uint8_t> idChan;   // channels ID: 1st on absolute, then increment
  std::vector<int16_t> cfdTime;  // CFD time
  std::vector<int32_t> qtcAmpl;  // Amplitude
  std::vector<uint8_t> qtcChain; // QTC chain
 
  CompressedDigits() = default;
 
  void clear();
 
  ClassDefNV(CompressedDigits, 1);
};
 
struct CTF : public o2::ctf::EncodedBlocks<CTFHeader, 9, uint32_t> {
 
  static constexpr size_t N = getNBlocks();
  enum Slots {
    BLC_trigger,  // trigger bits
    BLC_bcInc,    // increment in BC
    BLC_orbitInc, // increment in orbit
    BLC_nChan,    // number of fired channels
    BLC_status,   // special flags about event conditions: pile-up, not use for collision time, not use for event plane, etc.
    BLC_idChan,   // channels ID: 1st on absolute, then increment
    BLC_qtcChain, // ADC chain
    BLC_cfdTime,  // CFD time
    BLC_qtcAmpl   // amplitude
  };
 
  ClassDefNV(CTF, 1);
};
 
} // namespace ft0
} // namespace o2
 
#endif