T0/AliT0RawReader.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id:  */
  17
  18 //____________________________________________________________________
  19 //
  20 // T0
  21 // Class for reading T0 RAW data in TOF data format
  22 //
  23 #include "AliT0RawReader.h"
  24 #include "AliT0Parameters.h"
  25 #include "AliBitPacking.h"
  26 #include "TBits.h"
  27
  28 #include <Riostream.h>
  29 #include "TMath.h"
  30 #include "TH1F.h"
  31 #include "TArrayI.h"
  32 #include "AliLog.h"
  33
  34 ClassImp(AliT0RawReader)
  35
  36   AliT0RawReader::AliT0RawReader (AliRawReader *rawReader, Bool_t isOnline)
  37     :  TTask("T0RawReader","read raw T0 data"),
  38        fRawReader(rawReader),
  39        fData(NULL),
  40        fPosition(0),
  41        fParam(NULL),
  42        fIsOnline(isOnline),
  43        fBunchID(0),
  44        fPrintout(kFALSE)
  45
  46 {
  47   //
  48 // create an object to read T0raw digits
  49   AliDebug(1,"Start ");
  50
  51   fRawReader->Reset();
  52   fRawReader->Select("T0");
  53   fParam = AliT0Parameters::Instance();
  54   if (fIsOnline)
  55     fParam->InitIfOnline();
  56   else
  57     fParam->Init();
  58
  59 }
  60  AliT0RawReader::~AliT0RawReader ()
  61 {
  62   //
  63 }
  64 /*
  65 AliT0RawReader::AliT0RawReader(const AliT0RawReader& o): TTask(o),
  66      fRawReader(rawReader),
  67        fData(NULL),
  68        fPosition(0)
  69 {
  70   //
  71 }
  72 */
  73
  74
  75 Bool_t  AliT0RawReader::Next()
  76 {
  77 // read the next raw digit
  78 // returns kFALSE if there is no digit left
  79 //"LookUpTable":
  80 // Amplitude LED TRM=0; chain=0; TDC 0 -5        channel 0,2,4,6
  81 // Time CFD      TRM=0; chain=0; TDC 6 - 11      channel 0,2,4,6
  82 // mean time     TRM=0; chain=0; TDC 12          channel 0
  83 // T0A           TRM=0; chain=0; TDC 12          channel 2
  84 // T0C           TRM=0; chain=0; TDC 12          channel 4
  85 // vertex        TRM=0; chain=0; TDC 12          channel 6
  86 // mult QTC0        TRM=0; chain=0; TDC 13          channel 0
  87 // mult QTC1        TRM=0; chain=0; TDC 13          channel 2
  88
  89 // Charge QTC0   TRM=1; chain=0; TDC 0 -5        channel 0,2,4,6
  90 // Charge QTC1   TRM=1; chain=0; TDC 6 - 11      channel 0,2,4,6
  91 // T0A trigger          TRM=1; chain=0; TDC 12          channel 0
  92 // T0C trigger          TRM=1; chain=0; TDC 12          channel 2
  93 // vertex trigger       TRM=1; chain=0; TDC 12          channel 4
  94 // trigger central      TRM=1; chain=0; TDC 13          channel 0
  95 // tigger semicenral    TRM=1; chain=0; TDC 13          channel 2
  96 //
  97 // allData array collect data from all channels in one :
  98 // allData[0] - allData[23] 24 CFD channels
  99 // allData[24] -   allData[47] 24 LED channels
 100 //  allData[48]  mean (T0) signal
 101 // allData[49]   time difference (vertex)
 102
 103   UInt_t word;
 104   Int_t time=0,  itdc=0, ichannel=0, uu;
 105   Int_t numberOfWordsInTRM=0, iTRM=0;
 106   Int_t tdcTime, koef,hit=0;
 107   Int_t koefhits[110];
 108   Int_t trm_chain_header =  0x00000000;
 109   Int_t  trm_chain_trailer =  0x10000000;
 110
 111   UInt_t  filler =  0x70000000;
 112   Bool_t correct=kTRUE;
 113   Int_t header;
 114
 115   Int_t fNTRM = fParam->GetNumberOfTRMs();
 116   for ( Int_t k=0; k<110; k++) {
 117     koefhits[k]=0;
 118     for ( Int_t jj=0; jj<5; jj++) {
 119       fAllData[k][jj]=0;
 120     }
 121   }
 122   do {
 123     if (!fRawReader->ReadNextData(fData)) return kFALSE;
 124   } while (fRawReader->GetDataSize() == 0);
 125
 126   fPosition = 0;
 127   //  cout.setf( ios_base::hex, ios_base::basefield );
 128   if(fPrintout)
 129     cout<<" CDH :: BC ID "<< (fRawReader->GetBCID())<<
 130       " Event size"<<fRawReader->GetDataSize()<<
 131       " orbit ID "<<fRawReader->GetOrbitID()<<
 132       " event index "<<fRawReader->GetEventIndex()<<
 133       " event type " <<fRawReader->GetType()<<endl;
 134   //DRM header
 135     for (Int_t i=0; i<6; i++) {
 136       word = GetNextWord();
 137       if(fPrintout && i==0) cout<<" DRM header:: event words "<<AliBitPacking::UnpackWord(word,4, 20);
 138       //  cout<<i<<" DRM header "<<word<<endl;
 139       if (fPrintout && i==4 ) cout<<" L0BC ID "<< AliBitPacking::UnpackWord(word,4, 15)<<endl;
 140       header = AliBitPacking::UnpackWord(word,28,31);
 141       if( header !=4 )
 142         {
 143           AliWarning(Form(" !!!! wrong  DRM header  %x!!!!", word));
 144           fRawReader->AddFatalErrorLog(kWrongDRMHeader,Form("w=%x",word));
 145           break;
 146         }
 147     }
 148     for (Int_t ntrm=0; ntrm< fNTRM; ntrm++)
 149       {
 150         //TRMheader
 151         word = GetNextWord();
 152         //      cout<<" TRM "<<word<<endl;
 153         header = AliBitPacking::UnpackWord(word,28,31);
 154         if ( header != 4 )
 155           {
 156             AliWarning(Form(" !!!! wrong TRM header  %x!!!!", word));
 157             fRawReader->AddMajorErrorLog(kWrongTRMHeader,Form("w=%x",word));
 158             break;
 159           }
 160         numberOfWordsInTRM=AliBitPacking::UnpackWord(word,4,16);
 161         if(fPrintout) {
 162           cout<<" TRM header :: event words "<<numberOfWordsInTRM;
 163           cout<<" ACQ bits "<<AliBitPacking::UnpackWord(word,17,18);
 164           cout<<" L bit "<<AliBitPacking::UnpackWord(word,19,19)<<endl;
 165         }
 166         iTRM=AliBitPacking::UnpackWord(word,0,3);
 167         for( Int_t ichain=0; ichain<2; ichain++)
 168           {
 169             //chain header
 170             word = GetNextWord();
 171             // cout<<" chain header "<<word<<endl;
 172             uu = word & trm_chain_header;
 173             if(uu != trm_chain_header)
 174               {
 175                 AliWarning(Form(" !!!! wrong CHAIN  0  header %x!!!!", word));
 176                 fRawReader->AddMajorErrorLog(kWrongChain0Header,Form("w=%x",word));
 177                 break;
 178               }
 179             fBunchID=AliBitPacking::UnpackWord(word,4,15);
 180             if(fPrintout)
 181               cout<<" chain "<< ichain<<" header:: BunchID  "<<fBunchID;
 182             word = GetNextWord();
 183             //   cout<<" next word "<<word<<endl;
 184             tdcTime =  AliBitPacking::UnpackWord(word,31,31);
 185             //      for (; tdcTime==1; tdcTime)
 186             while(tdcTime==1)
 187               {
 188                 correct = kTRUE;
 189                 itdc=AliBitPacking::UnpackWord(word,24,27);
 190                 ichannel=AliBitPacking::UnpackWord(word,21,23);
 191                 time=AliBitPacking::UnpackWord(word,0,20);
 192
 193                 koef = fParam->GetChannel(iTRM,itdc,ichain,ichannel);
 194                 if (koef != 0 )
 195                   //                              cout<<"RawReader>> "<<"koef "<<koef<<" trm "<<iTRM<<
 196                   //                                " tdc "<<itdc<<" chain "<<ichain<<
 197                   //                        " channel "<<ichannel<<" time "<<time<<endl;
 198                 if (koef ==-1 ){
 199                   AliWarning(Form("Incorrect lookup table ! "));
 200                   fRawReader->AddMajorErrorLog(kIncorrectLUT);
 201                   correct=kFALSE;
 202                 }
 203                 if(correct){
 204                   hit=koefhits[koef];
 205                   if(hit>4) {
 206                     AliDebug(10,Form("Too many hits for %i channel - %i ! ",koef,koefhits[koef] ));
 207                     hit=4;
 208                   }
 209                   fAllData[koef][hit]=time;
 210                   koefhits[koef]++;
 211                 }
 212                 word = GetNextWord();
 213
 214                 tdcTime =  AliBitPacking::UnpackWord(word,31,31);
 215
 216               }
 217
 218             //   cout<<" trailer :: "<<word<<endl;
 219             uu = word&trm_chain_trailer;
 220             if(uu != trm_chain_trailer )
 221               {
 222                 AliWarning(Form(" !!!! wrong CHAIN 0 trailer %x !!!!", word));
 223                 fRawReader->AddMajorErrorLog(kWrongChain0Trailer,Form("w=%x",word));
 224                 break;
 225               }
 226             if(fPrintout)
 227               cout<<" trailer:: event counter "<< AliBitPacking::UnpackWord(word,16,27)<<endl;
 228           }
 229
 230         word = GetNextWord(); //TRM trailer
 231         //      cout<<" TRM trailer "<<word<<endl;
 232         header = AliBitPacking::UnpackWord(word,28,31);
 233         if( header !=5 )
 234           {
 235             AliWarning(Form(" !!!! wrong TRM GLOBAL trailer  %x!!!!", word));
 236             fRawReader->AddMajorErrorLog(kWrongTRMTrailer,Form("w=%x",word));
 237             break;
 238           }
 239         if(fPrintout)
 240           cout<<"  TRM trailer :: event counter "<< AliBitPacking::UnpackWord(word,16,27)<<endl;
 241       } //TRM loop
 242     word = GetNextWord(); //
 243     //  cout<<" after TRM trailer "<<word<<endl;
 244     if (word == filler )  word = GetNextWord();
 245      header = AliBitPacking::UnpackWord(word,28,31);
 246      if( header !=5 )
 247        {
 248          AliWarning(Form(" !!!! wrong DRM GLOBAL trailer  %x!!!!", word));
 249          fRawReader->AddFatalErrorLog(kWrongDRMTrailer,Form("w=%x",word));
 250       }
 251      if(fPrintout)
 252        cout<<" DRM trailer ::event counter "<< AliBitPacking::UnpackWord(word,4,15)<<endl;
 253      cout.setf( ios_base::dec, ios_base::basefield );
 254
 255      return kTRUE;
 256 }
 257 //_____________________________________________________________________________
 258 Int_t AliT0RawReader::GetPosition()
 259 {
 260   // Sets the position in the
 261   // input stream
 262   if (((fRawReader->GetDataSize() * 8) % 32) != 0)
 263     AliFatal(Form("Incorrect raw data size ! %d words are found !",fRawReader->GetDataSize()));
 264   return (fRawReader->GetDataSize() * 8) / 32;
 265 }
 266 //_____________________________________________________________________________
 267 UInt_t AliT0RawReader::GetNextWord()
 268 {
 269   // Read the next 32 bit word in backward direction
 270   // The input stream access is given by fData and fPosition
 271
 272
 273   //   fPosition--;
 274   Int_t iBit = fPosition * 32;
 275   Int_t iByte = iBit / 8;
 276
 277   UInt_t word = 0;
 278   word  = fData[iByte+3]<<24;
 279   word |= fData[iByte+2]<<16;
 280   word |= fData[iByte+1]<<8;
 281   word |= fData[iByte];
 282    fPosition++;
 283
 284   return word;
 285
 286 }
 287