/data/refman/pasoursint/CMSSW_5_2_9/src/EventFilter/EcalDigiToRaw/src/TCCBlockFormatter.cc

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#include <memory>

#include "EventFilter/EcalDigiToRaw/interface/TCCBlockFormatter.h"

#include "DataFormats/EcalDetId/interface/EcalDetIdCollections.h"

#include "EventFilter/EcalRawToDigi/interface/DCCRawDataDefinitions.h"

#include "DataFormats/FEDRawData/interface/FEDNumbering.h"


using namespace std;


TCCBlockFormatter::TCCBlockFormatter() {

 AllTPsamples_ = false;
}

TCCBlockFormatter::~TCCBlockFormatter() {

}

void TCCBlockFormatter::DigiToRaw(const EcalTriggerPrimitiveDigi& trigprim, 
                                  FEDRawData& rawdata, const EcalElectronicsMapping* TheMapping)
{

  if (debug_) cout << "enter in TCCBlockFormatter::DigiToRaw " << endl;

  int HEADER_SIZE = 8 * 9;
  int bx = *pbx_;
  int lv1 = *plv1_;


        const EcalTrigTowerDetId& detid = trigprim.id();

           if ( (detid.subDet() == EcalBarrel) && (! doBarrel_) ) return;
           if ( (detid.subDet() == EcalEndcap) && (! doEndCap_) ) return;

        int iDCC = TheMapping -> DCCid(detid);
        int TCCid = TheMapping -> TCCid(detid);


        if (TCCid < EcalElectronicsMapping::MIN_TCCID || TCCid > EcalElectronicsMapping::MAX_TCCID) 
                cout << "Wrong TCCid in TCCBlockFormatter::DigiToRaw " << endl;
        bool IsEndCap = ( (EcalElectronicsId::MIN_DCCID_EEM <= iDCC && iDCC <= EcalElectronicsId::MAX_DCCID_EEM) ||
                          (EcalElectronicsId::MIN_DCCID_EEP <= iDCC && iDCC <= EcalElectronicsId::MAX_DCCID_EEP) );

        int FEDid = FEDNumbering::MINECALFEDID + iDCC;

        // note: row is a 64 bit word
        int NTT_max = 68;       // Barrel case
        int Nrows_TCC = 17;     // Barrel case    (without the header row)
        int NTCC = 1;           // Barrel case; number of TCC blocks
        int itcc_block = 1;     // Barrel case

        if (IsEndCap) {
                Nrows_TCC = 8;          // one row is a 64 bit word
                NTCC = 4;               // 4 TTC in EndCap case. Use some custom numbering since
                int pair = TCCid % 2;   // the TCCid is written to the RawData.
                int inner = ( detid.ietaAbs() >= 22) ? 1 : 0;
                itcc_block = 2 * pair + inner + 1;
                if (inner == 1) NTT_max = 28;
                else NTT_max = 16;
        }

        
        int nsamples = trigprim.size();
        if (! AllTPsamples_) nsamples = 1;

        int iTT = TheMapping -> iTT(detid);   // number of tp inside a fed
        if (debug_) cout << "This is a TrigTower  iDCC iTT iTCCBlock TCCid " << dec << 
                iDCC << " " << iTT << " " << itcc_block << " " << TCCid << endl;
        if (debug_) cout << "ieta iphi " << dec << detid.ieta() << " " << detid.iphi() << endl;
        if (iTT <= 0 || iTT > NTT_max)  {
                cout << "invalid iTT " << iTT << endl;
                return;
        }

        int FE_index;
        
        // rawdata points to the block which will be built for TCC data  
        if ((int)rawdata.size() != HEADER_SIZE) {
          FE_index = rawdata.size() / 8 - NTCC*(Nrows_TCC+1);         // as far as raw data have been generated 
          FE_index ++;                                                // infer position in TCC block
          if (debug_) cout << "TCCid already there. FE_index = " << FE_index << endl;
        }
        else {
                if (debug_) cout << "New TTCid added on Raw data, TTCid = " << dec << TCCid << " 0x" << hex << TCCid << endl;
                FE_index = rawdata.size() / 8;                    // size in unites of 64 bits word
                int fe_index = FE_index;
                for (int iblock=0; iblock < NTCC; iblock++) {     // do this once per fed in EB, four times in EE
                   rawdata.resize (rawdata.size() + 8);
                   unsigned char* ppData = rawdata.data();        // use this to navigate and create the binary
                   ppData[8*fe_index] = TCCid & 0xFF;             // fed_index increases in units of bytes
                   ppData[8*fe_index+2] = bx & 0xFF;              // bx takes bits 0-11: 0-7+8-11
                   ppData[8*fe_index+3] = (bx & 0xF00)>>8;
                   ppData[8*fe_index+3] |= 0x60;
                   ppData[8*fe_index+4] = lv1 & 0xFF;             // same game done for lv1, which takes bits 0-11: 0-7+8-11 
                   ppData[8*fe_index+5] = (lv1 & 0xF00)>>8;       // lv1
                   ppData[8*fe_index+6] = NTT_max;
                   ppData[8*fe_index+6] |= ((nsamples & 0x1)<<7); // nsamples: number time samples
                   ppData[8*fe_index+7] = ((nsamples & 0xE)>>1);
                   ppData[8*fe_index+7] |= 0x60;
                   if (iblock == 0) FE_index ++;
                   fe_index += Nrows_TCC+1;
                   rawdata.resize (rawdata.size() + 8*Nrows_TCC);    // 17 lines of TPG data in EB, 8 in EE
                }
                if (debug_) cout << "Added headers and empty lines : " << endl;
                if (debug_) print(rawdata);

                // -- put the B011 already, since for Endcap there can be empty
                // -- lines in the TCC and the SRP blocks
                unsigned char* ppData = rawdata.data();
                for (int iline=FE_index-1; iline < FE_index + (Nrows_TCC+1)*NTCC -1 ; iline++) {
                 ppData[8*iline + 7] |= 0x60;
                 ppData[8*iline + 3] |= 0x60;
                }
        }

        unsigned char* pData = rawdata.data();

        // -- Now the TCC Block :

        int jTT = (iTT-1);                                // jTT is the TP number insided a block;
        int irow = jTT/4 + (itcc_block-1)*(Nrows_TCC+1);  // you fit 4 TP's per row; move forward if you're not in the first block;
        int ival = jTT % 4;                               // for each block you have to skip, move of (Nrows_TCC +1) - 1 is for the TCC header

        // RTC required TP's tp follow global phi also in EB+, thus swap them inside the single TCC 
        // here you could swap ival -> 3-ival to swap phi insied EB+ supermodules  
        if(NUMB_SM_EB_PLU_MIN <= iDCC && iDCC <= NUMB_SM_EB_PLU_MAX)
          {ival = 3-ival;}

        FE_index += irow;                                 // ival is location inside a TP row; varies between 0-3

        if (debug_) cout << "Now add tower " << dec << iTT << " irow ival " << dec << irow << " " << dec << ival << endl;
        if (debug_) cout << "new data will be added at line " << dec << FE_index << endl;

        int fg = trigprim.fineGrain();
        int et = trigprim.compressedEt();
        int ttflag = trigprim.ttFlag();

        if (debug_ && (ttflag != 0)) {
                cout << "in TCCBlock : this tower has a non zero flag" << endl;
                cout << "Fedid  iTT  flag " << dec << FEDid << " " << iTT << " " << "0x" << hex << ttflag << endl;
        }
        pData[8*FE_index + ival*2] = et & 0xFF;                   // ival is location inside a TP row; varies between 0-3; tp goes in bits 0-7
        pData[8*FE_index + ival*2+1] = (ttflag<<1) + (fg&0x1);    // fg follows in bit 8; ttfg is in bits 9-11 
        if (IsEndCap) {
                // re-write the TCCid  and N_Tower_Max :
                int ibase = 8*(FE_index - (int)(jTT/4) -1);
                pData[ibase] = TCCid & 0xFF;
                pData[ibase+6] = NTT_max;
                pData[ibase+6] |= ((nsamples & 0x1)<<7);
                pData[ibase+7] |= ((nsamples & 0xE)>>1);
        }
        if (debug_) cout << "pData[8*FE_index + ival*2+1] = " << hex << (int)pData[8*FE_index + ival*2+1] << endl;
        if (debug_) cout << "ttflag ttflag<<1 " << hex << ttflag << " " << hex << (ttflag<<1) << endl;
        if (debug_) cout << "fg&0x1 " << hex << (fg&0x1) << endl;
        if (debug_) cout << "sum " << hex << ( (ttflag<<1) + (fg&0x1) ) << endl;
        if (ival %2 == 1) pData[8*FE_index + ival*2+1] |= 0x60;
        if (debug_) cout << "ttflag et fgbit " << hex << ttflag << " " << hex << et << " " << hex << fg << endl;
        if (debug_) print(rawdata);

        
}