TDEEthFrame.hpp

Go to the documentation of this file.

 
#ifndef FDDETDATAFORMATS_INCLUDE_FDDETDATAFORMATS_TDEETHFRAME_HPP_
#define FDDETDATAFORMATS_INCLUDE_FDDETDATAFORMATS_TDEETHFRAME_HPP_
 
#include "fddetdataformats/FrameConcepts.hpp"
#include "fddetdataformats/Utils.hpp"
 
#include "detdataformats/DAQEthHeader.hpp"
 
#include <algorithm> // For std::min
#include <cassert>   // For assert()
#include <cstdint>   // For uint32_t etc
#include <cstdio>
#include <cstdlib>
#include <limits>
#include <stdexcept> // For std::out_of_range
 
namespace dunedaq::fddetdataformats {
 
// NOLINTBEGIN(build/unsigned)

struct TDEEthFrame
{
  // The definition of the format is in terms of 64-bit words
  using word_t = uint64_t;
 
  static constexpr int s_bits_per_adc = 14;
  static constexpr int s_bits_per_word = 8 * sizeof(word_t);
  static constexpr int s_time_samples_per_frame = 64;
  static constexpr int s_channels_per_half_femb = 64;
  static constexpr int s_half_fembs_per_frame = 1;
  static constexpr int s_num_channels = s_channels_per_half_femb * s_half_fembs_per_frame;
  static constexpr int s_num_adc_words_per_ts = s_num_channels * s_bits_per_adc / s_bits_per_word;
 
  struct TDEEthHeader
  {
    static constexpr size_t s_expected_bytes { 8 + 8 }; // bitfields + TAItime
 
    uint64_t reserved : 26;
    uint64_t tde_errors : 16;
    uint64_t tde_header : 10;
    uint64_t version : 4;
    uint64_t channel : 8;
    uint64_t TAItime : 64;
  };
  static_assert(sizeof(TDEEthHeader) == TDEEthHeader::s_expected_bytes);
 
  static constexpr size_t s_expected_bytes = sizeof(detdataformats::DAQEthHeader) + TDEEthHeader::s_expected_bytes + s_time_samples_per_frame * s_num_adc_words_per_ts * sizeof(word_t);
 
  
  uint16_t get_adc(int i_channel, int i_sample = 0) const;

  void set_adc(int i_channel, int i_sample, uint16_t val);

  uint64_t get_timestamp() const { return daq_header.get_timestamp(); }

  void set_timestamp(const uint64_t new_timestamp) { daq_header.timestamp = new_timestamp; }

  uint8_t get_channel() const { return header.channel; }

  void set_channel(const uint8_t new_channel) { header.channel = new_channel; }
 
  bool operator<(const TDEEthFrame& other) const {
    return this->get_timestamp() < other.get_timestamp();
  }
  
  detdataformats::DAQEthHeader daq_header;
  TDEEthHeader header;
  word_t adc_words[s_time_samples_per_frame][s_num_adc_words_per_ts]; // NOLINT
};
 
  static_assert(std::endian::native == std::endian::little,
              "The TDEEthFrame bitfield layout assumes little-endian architecture");
 
  static_assert(AdaptableFrameConcept<TDEEthFrame>, "TDEEthFrame does not satisfy the AdaptableFrameConcept");
 
} // namespace dunedaq::fddetdataformats
 
#include "detail/TDEEthFrame.hxx"
 
// NOLINTEND(build/unsigned)
 
#endif // FDDETDATAFORMATS_INCLUDE_FDDETDATAFORMATS_TDEETHFRAME_HPP_