1 #ifndef ALIITSRAWSTREAMSDD_H
2 #define ALIITSRAWSTREAMSDD_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 ///////////////////////////////////////////////////////////////////////////////
10 /// This class provides access to ITS SDD digits in raw data
11 /// (default=simulated data).
12 ///////////////////////////////////////////////////////////////////////////////
14 #include "AliITSRawStream.h"
15 #include "AliITSDDLModuleMapSDD.h"
20 class AliITSRawStreamSDD: public AliITSRawStream {
22 AliITSRawStreamSDD(AliRawReader* rawReader);
23 AliITSRawStreamSDD(const AliITSRawStreamSDD& rs);
24 AliITSRawStreamSDD& operator=(const AliITSRawStreamSDD& rs);
25 virtual ~AliITSRawStreamSDD();
27 virtual Bool_t Next();
29 virtual Int_t GetAnode() const {return fCoord1;}
30 virtual Int_t GetTime() const {return fCoord2;}
31 virtual Int_t GetChannel() const {return fChannel;}
32 virtual Int_t ReadJitter() const {return 0;}
33 virtual Int_t GetCarlosId() const {return fCarlosId;}
34 virtual Int_t GetEventId() const {return fEventId;}
36 virtual void SetDDLModuleMap(AliITSDDLModuleMapSDD* ddlsdd){fDDLModuleMap->SetDDLMap(ddlsdd);}
37 virtual void SetLowCarlosThreshold(Int_t th, Int_t i)
38 {fLowThreshold[i]=th;}
39 virtual void SetZeroSuppLowThreshold(Int_t iMod, Int_t iSid, Int_t th)
40 {fLowThresholdArray[iMod][iSid]=th;}
41 Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule) const {
42 return fDDLModuleMap->GetModuleNumber(iDDL,iModule);
46 enum {kSDDModules = 260}; // number of SDD modules
47 enum {kSPDModules = 240}; // number of SPD modules (used as offset)
48 enum {kDDLsNumber = 24}; // number of DDLs in SDD
49 enum {kModulesPerDDL = 12}; // number of modules in each DDL
50 enum {kCarlosWords = 12}; // number of FIFOCARLOS Words
51 enum {kFifoWords = 4}; // number of FIFO Words
52 enum ESDDRawStreamError {
57 virtual Bool_t SkipHeaderWord();
58 virtual UInt_t ReadBits();
59 virtual Int_t DecompAmbra(Int_t value) const;
61 static const UInt_t fgkCodeLength[8]; //code length
63 AliITSDDLModuleMapSDD* fDDLModuleMap; // mapping DDL/module -> module number
64 UInt_t fData; // data read for file
65 Int_t fSkip[kDDLsNumber];// obsolete -- needed to compile AliITSRawStreamSDDv2
66 Int_t fEventId; // event ID from header
67 Int_t fCarlosId; // carlos ID
68 Int_t fChannel; // current channel
69 Int_t fJitter; // jitter between L0 and pascal stop (x25ns)
70 ULong64_t fChannelData[kModulesPerDDL][2];// packed data for the 2 channels
71 UInt_t fLastBit[kModulesPerDDL][2]; // last filled bit in fChannelData
72 UInt_t fChannelCode[kModulesPerDDL][2];// current channel code
73 Bool_t fReadCode[kModulesPerDDL][2]; // next bits are code or data
74 UInt_t fReadBits[kModulesPerDDL][2]; // number of bits to read
75 Int_t fLowThresholdArray[kSDDModules][2]; // array with low thresholds for all modules
76 Int_t fLowThreshold[2]; // obsolete -- needed to compile AliITSRawStreamSDDv2
77 Int_t fNfifo[kFifoWords]; // FIFO number
78 Int_t fTimeBin[kModulesPerDDL][2]; // current timebin [ncarlos][nchannels]
79 Int_t fAnode[kModulesPerDDL][2]; // current anode [ncarlos][nchannels]
80 UInt_t fICarlosWord[kCarlosWords]; // Carlos words
81 UInt_t fIFifoWord[kFifoWords]; // FIFO words
82 Int_t fICountFoot[kModulesPerDDL]; // counter for carlos footer words
83 Int_t fResetSkip; //if it is 0, the ResetSkip Funcion is called
84 ClassDef(AliITSRawStreamSDD, 11) // class for reading ITS SDD raw digits