/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* See cxx source for full Copyright notice */
+/* $Id$ */
+
+///////////////////////////////////////////////////////////////////////////////
+///
+/// This class provides access to ITS SPD digits in raw data.
+///
+///////////////////////////////////////////////////////////////////////////////
+
#include "AliITSRawStream.h"
-#include "AliRawReader.h"
class AliITSRawStreamSPD: public AliITSRawStream {
public :
- AliITSRawStreamSPD();
+ AliITSRawStreamSPD(AliRawReader* rawReader);
+ virtual ~AliITSRawStreamSPD() {};
virtual Bool_t Next();
+ virtual Bool_t ReadCalibHeader();
+
+ // the 2 methods below are equivalent to AliITSRawStream::GetCoord1 and GetCoord2
+ // together with the AliITSRawStream::GetModuleID these are the "offline" coordinates
+ Int_t GetColumn() const {return fCoord1;};
+ Int_t GetRow() const {return fCoord2;};
+
+ // together with the AliRawReader::GetDDLID() these are the "online" coordinates
+ UShort_t GetHalfStaveNr() const {return fHalfStaveNr;}
+ UShort_t GetChipAddr() const {return fChipAddr;}
+ Int_t GetChipCol() const {return fCol;};
+ Int_t GetChipRow() const {return fRow;};
+
+ // module mapping
+ static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule);
+ static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iHS, UInt_t iChip)
+ {return GetOfflineModuleFromOnline(iDDL,iHS,iChip);}
+
+ // coordinate conversions:
+ static Bool_t OfflineToOnline(UInt_t module, UInt_t colM, UInt_t RowM, UInt_t& eq, UInt_t& hs, UInt_t& chip, UInt_t& col, UInt_t& row);
+ static Bool_t OnlineToOffline(UInt_t eq, UInt_t hs, UInt_t chip, UInt_t col, UInt_t row, UInt_t& module, UInt_t& colM, UInt_t& rowM);
+ // coordinate conversions - offline->online
+ static UInt_t GetOnlineEqIdFromOffline(UInt_t module);
+ static UInt_t GetOnlineHSFromOffline(UInt_t module);
+ static UInt_t GetOnlineChipFromOffline(UInt_t module, UInt_t colM);
+ static UInt_t GetOnlineColFromOffline(UInt_t module, UInt_t colM);
+ static UInt_t GetOnlineRowFromOffline(UInt_t module, UInt_t rowM);
+ // coordinate conversions - online->offline
+ static UInt_t GetOfflineModuleFromOnline(UInt_t eqId, UInt_t hs, UInt_t chip);
+ static UInt_t GetOfflineColFromOnline(UInt_t eqId, UInt_t hs, UInt_t chip, UInt_t col);
+ static UInt_t GetOfflineRowFromOnline(UInt_t eqId, UInt_t hs, UInt_t chip, UInt_t row);
- inline Int_t GetRow() const {return fCoord1;};
- inline Int_t GetColumn() const {return fCoord2;};
+
+ Bool_t GetHalfStavePresent(UInt_t hs);
+
+ // use the methods below to extract the information from the calibration header
+ UInt_t GetHrouterNr() const {return (fCalHeadWord[0] & 0x0000003f);}
+ Bool_t GetHhalfStaveScanned(UInt_t hs) const;
+ UInt_t GetHtype() const {return (Int_t)((fCalHeadWord[1]) & 0x000000ff);}
+ Bool_t GetHdataFormat() const {return (Bool_t)(((fCalHeadWord[1]) & 0x00000100)>>8);}
+ UInt_t GetHtriggers() const {return fCalHeadWord[2];}
+ Bool_t GetHchipPresent(UInt_t hs, UInt_t chip) const;
+ UInt_t GetHdacStart() const {return ((fCalHeadWord[5]>>24) & 0x000000ff);}
+ UInt_t GetHdacEnd() const {return ((fCalHeadWord[5]>>16) & 0x000000ff);}
+ UInt_t GetHdacStep() const {return ((fCalHeadWord[5]>>8) & 0x000000ff);}
+ UInt_t GetHdacId() const {return ((fCalHeadWord[5]) & 0x000000ff);}
+ UInt_t GetHrowStart() const {return (UInt_t) ((fCalHeadWord[6]>>24) & 0x000000ff);}
+ UInt_t GetHrowEnd() const {return (UInt_t) ((fCalHeadWord[6]>>16) & 0x000000ff);}
+ UInt_t GetHrowValue() const {return (UInt_t) ((fCalHeadWord[6]>> 8) & 0x000000ff);}
+ UInt_t GetHdacValue() const {return (Int_t) ((fCalHeadWord[6]) & 0x000000ff);}
+ UInt_t GetHdacHigh(UInt_t hs) const;
+ UInt_t GetHdacLow(UInt_t hs) const;
+ UInt_t GetHTPAmp(UInt_t hs) const;
+ Bool_t GetHminTHchipPresent(UInt_t chip) const;
+
+ enum {kDDLsNumber = 20}; // number of DDLs in SPD
+ enum {kModulesPerDDL = 12}; // number of modules in each DDL
+ enum {kCalHeadLenMax = 16}; // maximum number of calib header words
+ enum ESPDRawStreamError {
+ kCalHeaderLengthErr = 1,
+ kDDLNumberErr = 2,
+ kEventNumberErr = 3,
+ kChipAddrErr = 4,
+ kStaveNumberErr = 5,
+ kNumbHitsErr = 6,
+ kWrongWordErr = 7,
+ kHalfStaveStatusErr = 8
+ };
private :
- AliRawReader fRawReader; // object for reading the raw data file
- UShort_t fData; // data read for file
- UInt_t fOffset; // offset for cell column
- UInt_t fHitCount; // counter of hits
+ static const Int_t fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL]; // mapping DDL/module -> module number
+
+ Bool_t ReadNextShort();
+ Bool_t ReadNextInt();
+ void NewEvent();
+
+ Int_t fEventNumber; // chip event counter
+ UShort_t fChipAddr; // chip nr
+ UShort_t fHalfStaveNr; // half stave nr
+ UInt_t fCol; // chip column nr
+ UInt_t fRow; // chip row nr
+ UInt_t fCalHeadWord[kCalHeadLenMax]; // calibration header words
+
+ UShort_t fData; // 16 bit data word read
+ UInt_t fOffset; // offset for cell column
+ UInt_t fHitCount; // counter of hits
+ UChar_t fDataChar1, fDataChar2, fDataChar3, fDataChar4; // temps part of a 32bit word
+ Bool_t fFirstWord; // keeps track of which of the two 16bit words out of the 32bit word to read when ReadNextShort is called
+ Bool_t fCalHeadRead[20]; // calibration header read flags (reset at new event)
+ UInt_t fPrevEventId; // previous event id (needed to know if there is a new event)
ClassDef(AliITSRawStreamSPD, 0) // class for reading ITS SPD raw digits
};
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff