/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_13_patch3/src/EventFilter/CastorRawToDigi/src/CastorUnpacker.cc

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#include "EventFilter/CastorRawToDigi/interface/CastorUnpacker.h"
#include "EventFilter/HcalRawToDigi/interface/HcalDCCHeader.h"
#include "EventFilter/HcalRawToDigi/interface/HcalHTRData.h"
#include "EventFilter/HcalRawToDigi/interface/HcalTTPUnpacker.h"
#include "DataFormats/HcalDetId/interface/HcalOtherDetId.h"
#include "DataFormats/HcalDigi/interface/HcalQIESample.h"
#include "DataFormats/HcalDigi/interface/CastorDataFrame.h"
#include "DataFormats/HcalDigi/interface/HcalTriggerPrimitiveSample.h"
#include <iostream>
#include "FWCore/MessageLogger/interface/MessageLogger.h"

namespace CastorUnpacker_impl {
  template <class DigiClass>
  const HcalQIESample* unpack(const HcalQIESample* startPoint, const HcalQIESample* limit, DigiClass& digi, int presamples, const CastorElectronicsId& eid, int startSample, int endSample, int expectedTime, const HcalHTRData& hhd) {
    // set parameters
    digi.setPresamples(presamples);
    int fiber=startPoint->fiber();
    int fiberchan=startPoint->fiberChan();
    uint32_t zsmask=hhd.zsBunchMask()>>startSample;
    digi.setZSInfo(hhd.isUnsuppressed(),hhd.wasMarkAndPassZS(fiber,fiberchan),zsmask);

 //   digi.setReadoutIds(eid);
 //   setReadoutIds is missing in  CastorDataFrame class  digi.setReadoutIds(eid);
    if (expectedTime>=0 && !hhd.isUnsuppressed()) {
           // std::cout << hhd.getFibOrbMsgBCN(fiber) << " " << expectedTime << " fiber="<<fiber<< std::endl;
      digi.setFiberIdleOffset(hhd.getFibOrbMsgBCN(fiber)-expectedTime);
    }
    // what is my sample number?
    int myFiberChan=startPoint->fiberAndChan();
    int ncurr=0,ntaken=0;
    const HcalQIESample* qie_work=startPoint;
    while (qie_work!=limit && qie_work->fiberAndChan()==myFiberChan) {
      if (ncurr>=startSample && ncurr<=endSample) {
        digi.setSample(ntaken,*qie_work);
        ++ntaken;
      }
      ncurr++;
      qie_work++;
    }
    digi.setSize(ntaken);
    return qie_work;
  }
}

namespace { inline bool isTPGSOI(const HcalTriggerPrimitiveSample& s) {
  return (s.raw()&0x200)!=0;
}
}


CastorUnpacker::CastorUnpacker(int sourceIdOffset, int beg, int end) : sourceIdOffset_(sourceIdOffset) , expectedOrbitMessageTime_(-1)
{
 if ( beg >= 0 && beg <= CastorDataFrame::MAXSAMPLES -1 ) {
        startSample_ = beg;
 } else {
        startSample_ = 0;
 }
 if ( end >= 0 && end <= CastorDataFrame::MAXSAMPLES -1 && end >= beg ) {
        endSample_ = end;
 } else {
        endSample_ = CastorDataFrame::MAXSAMPLES -1;
 }
}


void CastorUnpacker::unpack(const FEDRawData& raw, const CastorElectronicsMap& emap,
                          CastorRawCollections& colls, HcalUnpackerReport& report, bool silent) {

  if (raw.size()<16) {
    if (!silent) edm::LogWarning("Invalid Data") << "Empty/invalid DCC data, size = " << raw.size();
    return;
  }

  // get the DCC header
  const HcalDCCHeader* dccHeader=(const HcalDCCHeader*)(raw.data());
  int dccid=dccHeader->getSourceId()-sourceIdOffset_;

  // check the summary status
  
  // walk through the HTR data...
  HcalHTRData htr;
  const unsigned short* daq_first, *daq_last, *tp_first, *tp_last;
  const HcalQIESample* qie_begin, *qie_end, *qie_work;
  const HcalTriggerPrimitiveSample *tp_begin, *tp_end, *tp_work; 
  for (int spigot=0; spigot<HcalDCCHeader::SPIGOT_COUNT; spigot++) {
    if (!dccHeader->getSpigotPresent(spigot)) continue;

    int retval=dccHeader->getSpigotData(spigot,htr,raw.size());
    if (retval!=0) {
      if (retval==-1) {
        if (!silent) edm::LogWarning("Invalid Data") << "Invalid HTR data (data beyond payload size) observed on spigot " << spigot << " of DCC with source id " << dccHeader->getSourceId();
        report.countSpigotFormatError();
      }
      continue;
    }
    // check
    if (dccHeader->getSpigotCRCError(spigot)) {
      if (!silent) 
        edm::LogWarning("Invalid Data") << "CRC Error on HTR data observed on spigot " << spigot << " of DCC with source id " << dccHeader->getSourceId();
     report.countSpigotFormatError();
     continue;
    }  
    if (!htr.check()) {
                if (!silent) 
      edm::LogWarning("Invalid Data") << "Invalid HTR data observed on spigot " << spigot << " of DCC with source id " << dccHeader->getSourceId();
      report.countSpigotFormatError();
      continue;
    }
    if (htr.isHistogramEvent()) {
                if (!silent) 
      edm::LogWarning("Invalid Data") << "Histogram data passed to non-histogram unpacker on spigot " << spigot << " of DCC with source id " << dccHeader->getSourceId();
      continue;

    }
    if ((htr.getFirmwareFlavor()&0xE0)==0x80) { // some kind of TTP data
      if (colls.ttp!=0) {
        HcalTTPUnpacker ttpUnpack;
        colls.ttp->push_back(HcalTTPDigi());
        ttpUnpack.unpack(htr,colls.ttp->back());
      } else {
        LogDebug("CastorUnpackerHcalTechTrigProcessor") << "Skipping data on spigot " << spigot << " of DCC with source id " << dccHeader->getSourceId() << " which is from the TechTrigProcessor (use separate unpacker!)";
      }
      continue;
    }
    if (htr.getFirmwareFlavor()>=0x80) {
      if (!silent) edm::LogWarning("CastorUnpacker") << "Skipping data on spigot " << spigot << " of DCC with source id " << dccHeader->getSourceId() << " which is of unknown flavor " << htr.getFirmwareFlavor();
      continue;
    }
    // calculate "real" number of presamples
    int nps=htr.getNPS()-startSample_;
    
    // get pointers
    htr.dataPointers(&daq_first,&daq_last,&tp_first,&tp_last);
    unsigned int smid=htr.getSubmodule();
    int htr_tb=smid&0x1;
    int htr_slot=(smid>>1)&0x1F;
    int htr_cr=(smid>>6)&0x1F;
    
    tp_begin=(HcalTriggerPrimitiveSample*)tp_first;
    tp_end=(HcalTriggerPrimitiveSample*)(tp_last+1); // one beyond last..
       
    int currFiberChan=0x3F; // invalid fiber+channel...
    int ncurr=0;
    bool valid=false;
    bool tpgSOIbitInUse=htr.getFormatVersion()>=3; // version 3 and later
    // bool isHOtpg=htr.getFormatVersion()>=3 && htr.getFirmwareFlavor()==0; // HO is flavor zero
    int npre=0;
    /*
      Unpack the trigger primitives
    */
              // lookup the right channel
          bool dotp = true;
      CastorElectronicsId eid(0,1,spigot,dccid);
      eid.setHTR(htr_cr,htr_slot,htr_tb);
      DetId did=emap.lookup(eid);
          if ( did.null() ) dotp = false;
          HcalCastorDetId id1(did);
          HcalCastorDetId id((id1.zside()==0),id1.sector(),1);
                if ( id1.module() > 12 ) dotp = false;
                if ( dotp ) {
        // std::cout << " tp_first="<< tp_first << " tp_last="<< tp_last<< " tb="<<htr_tb<<" slot="<<htr_slot<<" crate="<<htr_cr<<" dccid="<< dccid<< std::endl;
 // regular TPs (not HO)
      for (tp_work=tp_begin; tp_work!=tp_end; tp_work++) {
        //        std::cout << "raw=0x"<<std::hex<< tp_work->raw()<<std::dec <<std::endl;
        if (tp_work->raw()==0xFFFF) continue; // filler word
        if (tp_work->slbAndChan()!=currFiberChan) { // start new set
          npre=0;
          currFiberChan=tp_work->slbAndChan();
          
                // std::cout<< " NEW SET "<<std::endl;
          //HcalElectronicsId eid(tp_work->slbChan(),tp_work->slb(),spigot,dccid,htr_cr,htr_slot,htr_tb);
          //DetId did=emap.lookupTrigger(eid);
          //if (did.null()) {
            //report.countUnmappedTPDigi(eid);
            //if (unknownIdsTrig_.find(eid)==unknownIdsTrig_.end()) {
              //if (!silent) edm::LogWarning("HCAL") << "HcalUnpacker: No trigger primitive match found for electronics id :" << eid;
              //unknownIdsTrig_.insert(eid);
            //}
            //valid=false;
            //continue;
          //} else if (did==HcalTrigTowerDetId::Undefined || 
                     //(did.det()==DetId::Hcal && did.subdetId()==0)) {
            //valid=false;
            //continue;
          //}

          colls.tpCont->push_back(CastorTriggerPrimitiveDigi(id));
          // set the various bits
          if (!tpgSOIbitInUse) colls.tpCont->back().setPresamples(nps);
          colls.tpCont->back().setZSInfo(htr.isUnsuppressed(),htr.wasMarkAndPassZSTP(tp_work->slb(),tp_work->slbChan()));

          // no hits recorded for current
          ncurr=0;
          valid=true;
        }      
        // add the word (if within settings or recent firmware [recent firmware ignores startSample/endSample])
        if (valid && ((tpgSOIbitInUse && ncurr<10) || (ncurr>=startSample_ && ncurr<=endSample_))) {
          colls.tpCont->back().setSample(colls.tpCont->back().size(),*tp_work);
          colls.tpCont->back().setSize(colls.tpCont->back().size()+1);
        }
        // set presamples,if SOI
        if (valid && tpgSOIbitInUse && isTPGSOI(*tp_work)) {
          colls.tpCont->back().setPresamples(ncurr);
        }
        ncurr++;
        npre++;
      }
     }

    qie_begin=(HcalQIESample*)daq_first;
    qie_end=(HcalQIESample*)(daq_last+1); // one beyond last..

    currFiberChan=0x3F; // invalid fiber+channel...
    ncurr=0;
    valid=false;
    
    for (qie_work=qie_begin; qie_work!=qie_end; ) {
      if (qie_work->raw()==0xFFFF) {
        qie_work++;
        continue; // filler word
      }
      // always at the beginning ...
      currFiberChan=qie_work->fiberAndChan();

      // lookup the right channel
      CastorElectronicsId eid(qie_work->fiberChan(),qie_work->fiber(),spigot,dccid);
      eid.setHTR(htr_cr,htr_slot,htr_tb);
      DetId did=emap.lookup(eid);

      if (!did.null()) {
            colls.castorCont->push_back(CastorDataFrame(HcalCastorDetId(did)));
            qie_work=CastorUnpacker_impl::unpack<CastorDataFrame>(qie_work, qie_end, colls.castorCont->back(), nps, eid, startSample_, endSample_, expectedOrbitMessageTime_, htr);
      } else {
        report.countUnmappedDigi();
        if (unknownIds_.find(eid)==unknownIds_.end()) {
                if (!silent) 
          edm::LogWarning("CASTOR") << "CastorUnpacker: No match found for electronics id :" << eid;
          unknownIds_.insert(eid);
        }
        for (int fiberC=qie_work->fiberAndChan();
             qie_work!=qie_end && qie_work->fiberAndChan()==fiberC;
             qie_work++);
      }
    }
  }
}