some viol fixed
[u/mrichter/AliRoot.git] / 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 {
44   //
45 // create an object to read T0raw digits
46   AliDebug(1,"Start ");
47  
48   fRawReader->Reset();
49   fRawReader->Select("T0");
50   fParam = AliT0Parameters::Instance();  
51   if (fIsOnline)
52     fParam->InitIfOnline();
53   else 
54     fParam->Init();
55  
56 }
57  AliT0RawReader::~AliT0RawReader ()
58 {
59   // 
60 }
61 /*
62 AliT0RawReader::AliT0RawReader(const AliT0RawReader& o): TTask(o),
63      fRawReader(rawReader),
64        fData(NULL),
65        fPosition(0)
66 {
67   //
68 }
69 */
70
71
72 Bool_t  AliT0RawReader::Next()
73 {
74 // read the next raw digit
75 // returns kFALSE if there is no digit left
76 //"LookUpTable":
77 // Amplitude LED TRM=0; chain=0; TDC 0 -5        channel 0,2,4,6
78 // Time CFD      TRM=0; chain=0; TDC 6 - 11      channel 0,2,4,6
79 // mean time     TRM=0; chain=0; TDC 12          channel 0
80 // T0A           TRM=0; chain=0; TDC 12          channel 2
81 // T0C           TRM=0; chain=0; TDC 12          channel 4
82 // vertex        TRM=0; chain=0; TDC 12          channel 6
83 // mult QTC0        TRM=0; chain=0; TDC 13          channel 0
84 // mult QTC1        TRM=0; chain=0; TDC 13          channel 2
85
86 // Charge QTC0   TRM=1; chain=0; TDC 0 -5        channel 0,2,4,6
87 // Charge QTC1   TRM=1; chain=0; TDC 6 - 11      channel 0,2,4,6
88 // T0A trigger          TRM=1; chain=0; TDC 12          channel 0
89 // T0C trigger          TRM=1; chain=0; TDC 12          channel 2
90 // vertex trigger       TRM=1; chain=0; TDC 12          channel 4
91 // trigger central      TRM=1; chain=0; TDC 13          channel 0
92 // tigger semicenral    TRM=1; chain=0; TDC 13          channel 2
93 //
94 // allData array collect data from all channels in one :
95 // allData[0] - allData[23] 24 CFD channels
96 // allData[24] -   allData[47] 24 LED channels
97 //  allData[48]  mean (T0) signal  
98 // allData[49]   time difference (vertex)
99
100  
101   UInt_t word;
102   Int_t time=0,  itdc=0, ichannel=0, uu; 
103   Int_t numberOfWordsInTRM=0, iTRM=0;
104   Int_t tdcTime, koef,hit=0;
105   Int_t koefhits[110];
106   Int_t trm_chain_header =  0x00000000;
107   Int_t  trm_chain_trailer =  0x10000000;
108   
109   Int_t  filler =  0x70000000;
110   Bool_t correct=kTRUE;
111   Int_t header;
112
113    Int_t fNTRM = fParam->GetNumberOfTRMs();
114    for ( Int_t k=0; k<110; k++) {
115     koefhits[k]=0;
116     for ( Int_t jj=0; jj<5; jj++) {
117       fAllData[k][jj]=0;
118      }
119    }
120     do {
121       if (!fRawReader->ReadNextData(fData)) return kFALSE;
122     } while (fRawReader->GetDataSize() == 0);
123     
124     fPosition = 0;
125      cout.setf( ios_base::hex, ios_base::basefield );
126     
127     //DRM header
128     for (Int_t i=0; i<6; i++) {
129       word = GetNextWord();
130       //      cout<<" DRM header "<<word<<endl;
131       header = AliBitPacking::UnpackWord(word,28,31);
132       if( header !=4 )
133         {
134           AliWarning(Form(" !!!! wrong  DRM header  %x!!!!", word));
135           fRawReader->AddFatalErrorLog(kWrongDRMHeader,Form("w=%x",word));
136           break;
137         }
138     }
139     //    cout<<"   fNTRM "<<fNTRM<<endl;
140     for (Int_t ntrm=0; ntrm< fNTRM; ntrm++)
141       {
142         //TRMheader  
143         word = GetNextWord();
144         header = AliBitPacking::UnpackWord(word,28,31);
145         //      cout<<" TRM header "<<word<<endl;
146         if ( header != 4 )
147           {
148             AliWarning(Form(" !!!! wrong TRM header  %x!!!!", word));
149             fRawReader->AddMajorErrorLog(kWrongTRMHeader,Form("w=%x",word));
150             break;
151           }
152         numberOfWordsInTRM=AliBitPacking::UnpackWord(word,4,16);
153         //      cout<<" numberOfWordsInTRM "<<numberOfWordsInTRM<<endl;
154         iTRM=AliBitPacking::UnpackWord(word,0,3);
155         for( Int_t ichain=0; ichain<2; ichain++)
156           {
157             //chain header
158             word = GetNextWord();
159             //      cout<<" chain header "<<word<<endl;
160             uu = word & trm_chain_header;
161             if(uu != trm_chain_header) 
162               {
163                 AliWarning(Form(" !!!! wrong CHAIN  0  header %x!!!!", word));
164                 fRawReader->AddMajorErrorLog(kWrongChain0Header,Form("w=%x",word));
165                 break;
166               }
167             word = GetNextWord();
168 //          cout<<" next "<<word<<endl;
169             tdcTime =  AliBitPacking::UnpackWord(word,31,31);   
170             //      for (; tdcTime==1; tdcTime) 
171             while(tdcTime==1)
172               {
173                 //                      cout<<" packed "<<word<<endl;
174                 itdc=AliBitPacking::UnpackWord(word,24,27);
175                 ichannel=AliBitPacking::UnpackWord(word,21,23);
176                 time=AliBitPacking::UnpackWord(word,0,20);
177                 
178                 koef = fParam->GetChannel(iTRM,itdc,ichain,ichannel);
179                 if (koef != 0 ) 
180                   //              cout<<"RawReader>> "<<"koef "<<koef<<" trm "<<iTRM<<
181                   //                " tdc "<<itdc<<" chain "<<ichain<<
182                   //                " channel "<<ichannel<<" time "<<time<<endl;
183                 if (koef ==-1 ){
184                   AliWarning(Form("Incorrect lookup table ! "));
185                   fRawReader->AddMajorErrorLog(kIncorrectLUT);
186                   correct=kFALSE;
187                 }
188                 if(correct){
189                   hit=koefhits[koef];
190                   if(hit>5) {  
191                     AliWarning(Form("Too many hits for %i channel  ! ",koef)); 
192                     break; 
193                   }
194                   fAllData[koef][hit]=time; 
195                   koefhits[koef]++;
196                 }
197                 word = GetNextWord();
198                 //              cout<<" next word in cycle "<<word<<endl;
199                 tdcTime =  AliBitPacking::UnpackWord(word,31,31);   
200                 
201               }
202             
203             //      cout<<" chain trailer "<<word<<endl;
204             uu = word&trm_chain_trailer;
205             if(uu != trm_chain_trailer )
206               {
207                 AliWarning(Form(" !!!! wrong CHAIN 0 trailer %x !!!!", word));
208                 fRawReader->AddMajorErrorLog(kWrongChain0Trailer,Form("w=%x",word));
209                 break;
210               }
211           }
212             
213         word = GetNextWord(); //TRM trailer
214         //      cout<<" TRM trailer "<<word<<endl;
215         header = AliBitPacking::UnpackWord(word,28,31);
216         if( header !=5 )
217           {
218             AliWarning(Form(" !!!! wrong TRM GLOBAL trailer  %x!!!!", word));
219             fRawReader->AddMajorErrorLog(kWrongTRMTrailer,Form("w=%x",word));
220             break;
221           }
222       } //TRM loop
223     word = GetNextWord(); //
224     //    cout<<" after TRM trailer "<<word<<endl;
225     if (word == filler )  word = GetNextWord(); 
226      header = AliBitPacking::UnpackWord(word,28,31);
227      if( header !=5 )
228        {
229          AliWarning(Form(" !!!! wrong DRM GLOBAL trailer  %x!!!!", word));
230          fRawReader->AddFatalErrorLog(kWrongDRMTrailer,Form("w=%x",word));
231       }
232      cout.setf( ios_base::dec, ios_base::basefield );
233     
234      return kTRUE;
235 }
236 //_____________________________________________________________________________
237 Int_t AliT0RawReader::GetPosition()
238 {
239   // Sets the position in the
240   // input stream
241   if (((fRawReader->GetDataSize() * 8) % 32) != 0)
242     AliFatal(Form("Incorrect raw data size ! %d words are found !",fRawReader->GetDataSize()));
243   return (fRawReader->GetDataSize() * 8) / 32;
244 }
245 //_____________________________________________________________________________
246 UInt_t AliT0RawReader::GetNextWord()
247 {
248   // Read the next 32 bit word in backward direction
249   // The input stream access is given by fData and fPosition
250
251
252   //   fPosition--;
253   Int_t iBit = fPosition * 32;
254   Int_t iByte = iBit / 8;
255
256   UInt_t word = 0;
257   word  = fData[iByte+3]<<24;
258   word |= fData[iByte+2]<<16;
259   word |= fData[iByte+1]<<8;
260   word |= fData[iByte];
261    fPosition++;
262
263   return word;
264
265 }
266