1 #ifndef ALIALTRORAWSTREAM_H
2 #define ALIALTRORAWSTREAM_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 ///////////////////////////////////////////////////////////////////////////////
10 /// This is a base class for reading raw data digits in Altro format
11 /// The class is able to read both old and new RCU trailer formats
12 /// One can switch between formats using fIsOldRCUFormat flag
14 ///////////////////////////////////////////////////////////////////////////////
20 class AliAltroRawStream: public TObject {
22 AliAltroRawStream(AliRawReader* rawReader);
23 virtual ~AliAltroRawStream();
26 virtual Bool_t Next();
28 Int_t GetDDLNumber() const { return fDDLNumber; } // Provide current DDL number
29 Int_t GetPrevDDLNumber() const { return fPrevDDLNumber; }// Provide previous DDL number
30 Bool_t IsNewDDLNumber() const {return (fDDLNumber != fPrevDDLNumber);};
31 Int_t GetRCUId() const { return fRCUId; } // Provide current RCU identifier
32 Int_t GetPrevRCUId() const { return fPrevRCUId; } // Provide previous RCU identifier
33 Bool_t IsNewRCUId() const {return (fRCUId != fPrevRCUId);};
34 Int_t GetHWAddress() const { return fHWAddress; } // Provide current hardware address
35 Int_t GetPrevHWAddress() const { return fPrevHWAddress; } // Provide previous hardware address
36 Bool_t IsNewHWAddress() const {return (fHWAddress != fPrevHWAddress) || IsNewDDLNumber();};
37 Int_t GetTime() const { return fTime; } // Provide index of current time bin
38 Int_t GetPrevTime() const { return fPrevTime; } // Provide index of previous time bin
39 Bool_t IsNewTime() const {return (fTime != fPrevTime) || IsNewHWAddress();};
40 Int_t GetSignal() const { return fSignal; } // Provide signal in ADC counts
41 Int_t GetTimeLength() const { return fTimeBunch; } // Provide total length of current time bunch
43 Bool_t GetRCUTrailerData(UChar_t*& data) const; // Provide a pointer to RCU trailer
44 Int_t GetRCUTrailerSize() const { return fRCUTrailerSize; } // Provide size of RCU trailer
46 void SelectRawData(Int_t detId); // Select raw data for specific detector id
48 void SetNoAltroMapping(Bool_t flag) { fNoAltroMapping = flag; } // Specify whenever to use or not the altro mapping
49 void SetOldRCUFormat(Bool_t flag) { fIsOldRCUFormat = flag; } // Specify whenever to use or not the old RCU trailer format
52 AliAltroRawStream(const AliAltroRawStream& stream);
53 AliAltroRawStream& operator = (const AliAltroRawStream& stream);
55 Bool_t fNoAltroMapping; // temporary flag in case of no altro mapping is provided
56 Short_t fSegmentation[3]; // temporary container for the dummy trailer, to be removed
58 Bool_t fIsOldRCUFormat; // flag used to select between old and new RCU trailer format
62 UShort_t GetNextWord();
64 Bool_t ReadDummyTrailer();
68 UInt_t Get32bitWord(Int_t &index);
70 Int_t fDDLNumber; // index of current DDL number
71 Int_t fPrevDDLNumber;// index of previous DDL number
72 Int_t fRCUId; // current RCU identifier
73 Int_t fPrevRCUId; // previous RCU identifier
74 Short_t fHWAddress; // current hardware address
75 Short_t fPrevHWAddress;// previous hardware address
76 Int_t fTime; // index of current time bin
77 Int_t fPrevTime; // index of previous time bin
78 Int_t fSignal; // signal in ADC counts
79 Int_t fTimeBunch; // total length of the current time bunch
81 AliRawReader* fRawReader; // object for reading the raw data
84 UChar_t* fData; // raw data
86 Int_t fPosition; // current (10 bit) position in fData
87 Int_t fCount; // counter of words to be read for current trailer
88 Int_t fBunchLength; // remaining number of signal bins in the current bunch
90 UChar_t* fRCUTrailerData; // pointer to RCU trailer data
91 Int_t fRCUTrailerSize; // size of RCU trailer data in bytes
93 ClassDef(AliAltroRawStream, 0) // base class for reading Altro raw digits