SiPixelDigiToRaw.cc

Go to the documentation of this file.

#include "FWCore/Framework/interface/ESWatcher.h"
#include "FWCore/Framework/interface/global/EDProducer.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "FWCore/Utilities/interface/CPUTimer.h"
#include "CondFormats/DataRecord/interface/SiPixelFedCablingMapRcd.h"
#include "CondFormats/SiPixelObjects/interface/SiPixelFrameReverter.h"
#include "DataFormats/Common/interface/DetSetVector.h"
#include "DataFormats/SiPixelDigi/interface/PixelDigi.h"

#include "FWCore/Framework/interface/MakerMacros.h"

#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/Framework/interface/ESHandle.h"

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

#include "FWCore/Utilities/interface/thread_safety_macros.h"

#include "DataFormats/Common/interface/DetSetVector.h"
#include "DataFormats/SiPixelDigi/interface/PixelDigi.h"
#include "DataFormats/FEDRawData/interface/FEDRawDataCollection.h"
#include "DataFormats/FEDRawData/interface/FEDRawData.h"

#include "CondFormats/SiPixelObjects/interface/SiPixelFedCablingMap.h"
#include "CondFormats/SiPixelObjects/interface/SiPixelFedCablingTree.h"

#include "EventFilter/SiPixelRawToDigi/interface/PixelDataFormatter.h"
#include "CondFormats/SiPixelObjects/interface/PixelFEDCabling.h"

#include "DataFormats/SiPixelDetId/interface/PixelFEDChannel.h"

#include <atomic>
#include <memory>

namespace sipixeldigitoraw {
  struct Cache {
    std::unique_ptr<SiPixelFedCablingTree> cablingTree_;
    std::unique_ptr<SiPixelFrameReverter> frameReverter_;
  };
}  // namespace sipixeldigitoraw

namespace pr = sipixeldigitoraw;

class SiPixelDigiToRaw final : public edm::global::EDProducer<edm::LuminosityBlockCache<pr::Cache>> {
public:
  explicit SiPixelDigiToRaw(const edm::ParameterSet&);

  void produce(edm::StreamID, edm::Event&, const edm::EventSetup&) const final;

  std::shared_ptr<pr::Cache> globalBeginLuminosityBlock(edm::LuminosityBlock const&,
                                                        edm::EventSetup const& iES) const final;

  void globalEndLuminosityBlock(edm::LuminosityBlock const&, edm::EventSetup const& iES) const final {}

  // Fill parameters descriptions
  static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);

private:
  mutable std::atomic_flag lock_ = ATOMIC_FLAG_INIT;
  CMS_THREAD_GUARD(lock_) mutable edm::ESWatcher<SiPixelFedCablingMapRcd> recordWatcher;
  CMS_THREAD_GUARD(lock_) mutable std::shared_ptr<pr::Cache> previousCache_;
  const edm::EDGetTokenT<edm::DetSetVector<PixelDigi>> tPixelDigi;
  const edm::EDGetTokenT<PixelFEDChannelCollection> theBadPixelFEDChannelsToken;
  const edm::EDPutTokenT<FEDRawDataCollection> putToken_;
  const bool usePilotBlade = false;  // I am not yet sure we need it here?
  const bool usePhase1;
};

using namespace std;

SiPixelDigiToRaw::SiPixelDigiToRaw(const edm::ParameterSet& pset)
    : tPixelDigi{consumes<edm::DetSetVector<PixelDigi>>(pset.getParameter<edm::InputTag>("InputLabel"))},
      theBadPixelFEDChannelsToken{consumes<PixelFEDChannelCollection>(pset.getParameter<edm::InputTag>("InputLabel"))},
      putToken_{produces<FEDRawDataCollection>()},
      usePhase1{pset.getParameter<bool>("UsePhase1")} {
  // Define EDProduct type

  if (usePhase1)
    edm::LogInfo("SiPixelRawToDigi") << " Use pilot blade data (FED 40)";
}

// -----------------------------------------------------------------------------
std::shared_ptr<pr::Cache> SiPixelDigiToRaw::globalBeginLuminosityBlock(edm::LuminosityBlock const&,
                                                                        edm::EventSetup const& es) const {
  while (lock_.test_and_set(std::memory_order_acquire))
    ;  //spin
  auto rel = [](std::atomic_flag* f) { f->clear(std::memory_order_release); };
  std::unique_ptr<std::atomic_flag, decltype(rel)> guard(&lock_, rel);

  if (recordWatcher.check(es)) {
    edm::ESHandle<SiPixelFedCablingMap> cablingMap;
    es.get<SiPixelFedCablingMapRcd>().get(cablingMap);
    previousCache_ = std::make_shared<pr::Cache>();
    previousCache_->cablingTree_ = cablingMap->cablingTree();
    previousCache_->frameReverter_ = std::make_unique<SiPixelFrameReverter>(es, cablingMap.product());
  }
  return previousCache_;
}

// -----------------------------------------------------------------------------
void SiPixelDigiToRaw::produce(edm::StreamID, edm::Event& ev, const edm::EventSetup& es) const {
  using namespace sipixelobjects;

  edm::Handle<edm::DetSetVector<PixelDigi>> digiCollection;
  ev.getByToken(tPixelDigi, digiCollection);

  PixelDataFormatter::RawData rawdata;
  PixelDataFormatter::Digis digis;

  int digiCounter = 0;
  for (auto const& di : *digiCollection) {
    digiCounter += (di.data).size();
    digis[di.id] = di.data;
  }

  auto cache = luminosityBlockCache(ev.getLuminosityBlock().index());

  LogDebug("SiPixelDigiToRaw") << cache->cablingTree_->version();

  PixelDataFormatter::BadChannels badChannels;
  edm::Handle<PixelFEDChannelCollection> pixelFEDChannelCollectionHandle;
  if (usePhase1 && ev.getByToken(theBadPixelFEDChannelsToken, pixelFEDChannelCollectionHandle)) {
    for (auto const& fedChannels : *pixelFEDChannelCollectionHandle) {
      PixelDataFormatter::DetBadChannels detBadChannels;
      for (const auto& fedChannel : fedChannels) {
        sipixelobjects::CablingPathToDetUnit path = {fedChannel.fed, fedChannel.link, 1};
        if (cache->cablingTree_->findItem(path) != nullptr) {
          detBadChannels.push_back(fedChannel);
        } else {
          edm::LogError("SiPixelDigiToRaw")
              << " FED " << fedChannel.fed << " Link " << fedChannel.link << " for module " << fedChannels.detId()
              << " marked bad, but this channel does not exist in the cabling map" << endl;
        }
      }  // channels reading a module
      if (!detBadChannels.empty())
        badChannels.insert({fedChannels.detId(), std::move(detBadChannels)});
    }  // loop on detId-s
  }

  //PixelDataFormatter formatter(cablingTree_.get());
  PixelDataFormatter formatter(cache->cablingTree_.get(), usePhase1);

  formatter.passFrameReverter(cache->frameReverter_.get());

  // create product (raw data)
  FEDRawDataCollection buffers;

  // convert data to raw
  formatter.formatRawData(ev.id().event(), rawdata, digis, badChannels);

  // pack raw data into collection
  for (auto const* fed : cache->cablingTree_->fedList()) {
    LogDebug("SiPixelDigiToRaw") << " PRODUCE DATA FOR FED_id: " << fed->id();
    FEDRawData& fedRawData = buffers.FEDData(fed->id());
    PixelDataFormatter::RawData::iterator fedbuffer = rawdata.find(fed->id());
    if (fedbuffer != rawdata.end())
      fedRawData = fedbuffer->second;
    LogDebug("SiPixelDigiToRaw") << "size of data in fedRawData: " << fedRawData.size();
  }

  LogDebug("SiPixelDigiToRaw").log([&](auto& l) {
    l << "Words/Digis this ev: " << digiCounter << "(fm:" << formatter.nDigis() << ")/" << formatter.nWords();
  });
  ev.emplace(putToken_, std::move(buffers));
}

// -----------------------------------------------------------------------------
void SiPixelDigiToRaw::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
  edm::ParameterSetDescription desc;
  desc.add<edm::InputTag>("InputLabel");
  desc.add<bool>("UsePhase1", false);
  desc.addUntracked<bool>("Timing", false)->setComment("deprecated");
  descriptions.add("siPixelRawData", desc);
}

// declare this as a framework plugin
#include "FWCore/Framework/interface/MakerMacros.h"
DEFINE_FWK_MODULE(SiPixelDigiToRaw);