---

CastorPacker Class Reference

#include <EventFilter/CastorRawToDigi/interface/CastorPacker.h>

List of all members.

Public Member Functions
void	pack (int fedid, int dccnumber, int nl1a, int orbitn, int bcn, const Collections &inputs, const CastorElectronicsMap &emap, FEDRawData &output)
Private Member Functions
int	findSamples (const DetId &did, const Collections &inputs, unsigned short *buffer, int &presamples)
Classes
struct	Collections

---

Detailed Description

Definition at line 14 of file CastorPacker.h.

---

Member Function Documentation

int CastorPacker::findSamples	(	const DetId &	did,
		const Collections &	inputs,
		unsigned short *	buffer,
		int &	presamples
	)			[private]

Definition at line 29 of file CastorPacker.cc.

References DetId::Calo, CastorPacker::Collections::castorCont, DetId::det(), and size.

Referenced by pack().

                                                                     {

  if (did.det()!=DetId::Calo) return 0;
  int size=0;
  HcalCastorDetId genId(did);

  size=process<CastorDigiCollection,HcalCastorDetId>(inputs.castorCont,did,buffer,presamples);

  return size;
}

void CastorPacker::pack	(	int	fedid,
		int	dccnumber,
		int	nl1a,
		int	orbitn,
		int	bcn,
		const Collections &	inputs,
		const CastorElectronicsMap &	emap,
		FEDRawData &	output
	)

pack into HcalHTRData

Definition at line 41 of file CastorPacker.cc.

References HcalHTRData::allocate(), HcalHTRData::CHANNELS_PER_SPIGOT, HcalDCCHeader::clear(), evf::compute_crc(), HcalDCCHeader::copySpigotData(), FEDRawData::data(), findSamples(), HcalHTRData::getRawLength(), CastorElectronicsId::htrSlot(), CastorElectronicsId::htrTopBottom(), CastorElectronicsMap::lookup(), HcalHTRData::MAXIMUM_SAMPLES_PER_CHANNEL, HcalHTRData::pack(), HcalHTRData::packHeaderTrailer(), HcalQIESample::raw(), CastorElectronicsId::readoutVMECrateId(), FEDRawData::resize(), FEDTrailer::set(), HcalDCCHeader::setHeader(), and FEDRawData::size().

Referenced by CastorDigiToRaw::produce().

                                          {
  std::vector<unsigned short> precdata(HcalHTRData::CHANNELS_PER_SPIGOT*HcalHTRData::MAXIMUM_SAMPLES_PER_CHANNEL);
  std::vector<unsigned short> trigdata(HcalHTRData::CHANNELS_PER_SPIGOT*HcalHTRData::MAXIMUM_SAMPLES_PER_CHANNEL);
  std::vector<unsigned char> preclen(HcalHTRData::CHANNELS_PER_SPIGOT);
  std::vector<unsigned char> triglen(HcalHTRData::CHANNELS_PER_SPIGOT);
  static const int HTRFormatVersion=3;

  HcalHTRData spigots[15];
  // loop over all valid channels in the given dcc, spigot by spigot.
  for (int spigot=0; spigot<15; spigot++) {
    spigots[spigot].allocate(HTRFormatVersion);
    CastorElectronicsId exampleEId;
    int npresent=0;
    int presamples=-1, samples=-1;
    for (int fiber=1; fiber<=8; fiber++) 
      for (int fiberchan=0; fiberchan<3; fiberchan++) {
        int linear=(fiber-1)*3+fiberchan;
        HcalQIESample chanSample(0,0,fiber,fiberchan,false,false);
        unsigned short chanid=chanSample.raw()&0xF800;
        preclen[linear]=0;

        CastorElectronicsId partialEid(fiberchan,fiber,spigot,dccnumber);
        // does this partial id exist?
        CastorElectronicsId fullEid;
        HcalGenericDetId genId;
        if (!emap.lookup(partialEid,fullEid,genId)) continue;

        // next, see if there is a digi with this id
        unsigned short* database=&(precdata[linear*HcalHTRData::MAXIMUM_SAMPLES_PER_CHANNEL]);
        int mypresamples;
        int mysamples=findSamples(genId,inputs,database,mypresamples);

        if (mysamples>0) {
          if (samples<0) samples=mysamples;
          else if (samples!=mysamples) {
            edm::LogError("CASTOR") << "Mismatch of samples in a single HTR (unsupported) " << mysamples << " != " << samples;
            continue;
          }
          if (presamples<0) {
            presamples=mypresamples;
            exampleEId=fullEid;
          } else if (mypresamples!=presamples) {
            edm::LogError("CASTOR") << "Mismatch of presamples in a single HTR (unsupported) " << mypresamples << " != " << presamples;
            continue;       
          }
          for (int ii=0; ii<samples; ii++)
            database[ii]=(database[ii]&0x7FF)|chanid;
          preclen[linear]=(unsigned char)(samples);
          npresent++;
        }       
      }
    if (npresent>0) {
      spigots[spigot].pack(&(preclen[0]),&(precdata[0]),
                           &(triglen[0]),&(trigdata[0]),
                           false);
      static const int pipeline=0x22;
      static const int firmwareRev=0;
      int submodule=exampleEId.htrTopBottom()&0x1;
      submodule|=(exampleEId.htrSlot()&0x1F)<<1;
      submodule|=(exampleEId.readoutVMECrateId()&0x1f)<<6;
      spigots[spigot].packHeaderTrailer(nl1a,
                                        bcn,
                                        submodule,
                                        orbitn,
                                        pipeline,
                                        samples,
                                        presamples,
                                        firmwareRev);
      
    }
  }
  // calculate the total length, and resize the FEDRawData
  int theSize=0;
  for (int spigot=0; spigot<15; spigot++) {
    theSize+=spigots[spigot].getRawLength()*sizeof(unsigned short);
  }
  theSize+=sizeof(HcalDCCHeader)+8; // 8 for trailer
  theSize+=(8-(theSize%8))%8; // even number of 64-bit words.
  output.resize(theSize);
  
  // construct the bare DCC Header
  HcalDCCHeader* dcc=(HcalDCCHeader*)(output.data());
  dcc->clear();
  dcc->setHeader(fedid,bcn,nl1a,orbitn);

  // pack the HTR data into the FEDRawData block using HcalDCCHeader
  for (int spigot=0; spigot<15; spigot++) {
    if (spigots[spigot].getRawLength()>0)
      dcc->copySpigotData(spigot,spigots[spigot],true,0);
  }
  // trailer
  FEDTrailer fedTrailer(output.data()+(output.size()-8));
  fedTrailer.set(output.data()+(output.size()-8),
    output.size()/8,
    evf::compute_crc(output.data(),output.size()), 0, 0);

}

---

The documentation for this class was generated from the following files:

• EventFilter/CastorRawToDigi/interface/CastorPacker.h
• EventFilter/CastorRawToDigi/src/CastorPacker.cc

---