1 /* Copyright(c) 1998-2003, ALICE Experiment at CERN, All rights reserved. *
2 * See cxx source for full Copyright notice */
4 ///////////////////////////////////////////////////////////////////////////////////////////
5 // Class used for generating the files containing raw data, required for Data Challenge //
6 ///////////////////////////////////////////////////////////////////////////////////////////
8 #ifndef AliITSDDLRAWDATA_H
9 #define AliITSDDLRAWDATA_H
14 class AliITSDDLRawData:public TObject{
16 AliITSDDLRawData();//default constructor
17 virtual ~AliITSDDLRawData(){;}//destructor
18 AliITSDDLRawData(const AliITSDDLRawData &source); // copy constructor
19 AliITSDDLRawData& operator=(const AliITSDDLRawData &source); // ass. op.
20 Int_t RawDataSPD(AliITS *ITS,TTree *TD ,Int_t LDCsNumber=2);
21 // This method generates the files with the Silicon pixel detector data
22 Int_t RawDataSDD(AliITS *ITS,TTree *TD ,Int_t LDCsNumber=4);
23 // This method generates the files with the Silicon drift detector data
24 Int_t RawDataSSD(AliITS *ITS,TTree *TD ,Int_t LDCsNumber=2);
25 // This method generates the files with the Silicon pixel detector data
27 //A debugging method used to test the files generated for the SPD.
29 void GetDigitsSPD(TClonesArray *ITSdigits, Int_t mod, ULong_t *buf);
30 //This method formats and stores in buf all the digits of a SPD module
31 void GetDigitsSDD(TClonesArray *ITSdigits, Int_t mod, ULong_t *buf);
32 //This method formats and stores in buf all the digits of a SDD module
33 void GetDigitsSSD(TClonesArray *ITSdigits, Int_t mod, ULong_t *buf);
34 //This method formats and stores in buf all the digits of a SSD module
35 void PackWord(ULong_t &BaseWord, ULong_t Word, Int_t StartBit, Int_t StopBit);
36 //This method stores the value of the variable Word of StopBit-StartBit+1 bits
37 //in BaseWord, starting from the bit StartBit
38 void UnpackWord(ULong_t PackedWord, Int_t StartBit, Int_t StopBit, ULong_t &Word);
39 //This method extracts a group of adjacent bits, specified by StartBit and StopBit,
40 //from the word PackedWord. The resulting word is saved in the Word variable
41 void WriteChipHeader(Int_t ChipAddr,Int_t EventCnt,ULong_t &BaseWord);
42 void WriteChipTrailer(ULong_t *buf,Int_t ChipHitCount,ULong_t &BaseWord);
43 void WriteHit(ULong_t *buf,Int_t RowAddr,Int_t HitAddr,ULong_t &BaseWord);
44 //The three previous methods are used to store the data according to the
45 //Silicon pixel detector data format
46 void ReadChipHeader(Int_t &ChipAddr,Int_t &EventCnt,ULong_t BaseWord);
47 void ReadChipTrailer(Int_t &ChipHitCount,ULong_t BaseWord);
48 void DecodeWord(ULong_t Code,ULong_t BaseWord,Int_t FirstHalf,ULong_t &Decoded1,ULong_t &Decoded2);
49 //Methods used for reading and dubugging SPD data files
51 Long_t fIndex; //number of 32 words to be stored into the output file
52 Int_t fHalfStaveModule; //first or second half of an Half Stave module
53 ClassDef(AliITSDDLRawData,1)