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 virtual void SetNCarlos(Int_t nC=12){fNCarlos=nC;}
42 Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule) const {
43 return fDDLModuleMap->GetModuleNumber(iDDL,iModule);
47 enum {kSDDModules = 260}; // number of SDD modules
48 enum {kSPDModules = 240}; // number of SPD modules (used as offset)
49 enum {kDDLsNumber = 24}; // number of DDLs in SDD
50 enum {kModulesPerDDL = 12}; // number of modules in each DDL
51 enum {kCarlosWords = 12}; // number of FIFOCARLOS Words
52 enum {kFifoWords = 4}; // number of FIFO Words
53 enum ESDDRawStreamError {
58 virtual Bool_t SkipHeaderWord();
59 virtual UInt_t ReadBits();
60 virtual Int_t DecompAmbra(Int_t value) const;
62 static const UInt_t fgkCodeLength[8]; //code length
64 AliITSDDLModuleMapSDD* fDDLModuleMap; // mapping DDL/module -> module number
65 UInt_t fData; // data read for file
66 Int_t fSkip[kDDLsNumber];// obsolete -- needed to compile AliITSRawStreamSDDv2
67 Int_t fEventId; // event ID from header
68 Int_t fCarlosId; // carlos ID
69 Int_t fChannel; // current channel
70 Int_t fJitter; // jitter between L0 and pascal stop (x25ns)
71 ULong64_t fChannelData[kModulesPerDDL][2];// packed data for the 2 channels
72 UInt_t fLastBit[kModulesPerDDL][2]; // last filled bit in fChannelData
73 UInt_t fChannelCode[kModulesPerDDL][2];// current channel code
74 Bool_t fReadCode[kModulesPerDDL][2]; // next bits are code or data
75 UInt_t fReadBits[kModulesPerDDL][2]; // number of bits to read
76 Int_t fLowThresholdArray[kSDDModules][2]; // array with low thresholds for all modules
77 Int_t fLowThreshold[2]; // obsolete -- needed to compile AliITSRawStreamSDDv2
78 Int_t fNCarlos; // number of Carlos
79 Int_t fNfifo[kFifoWords]; // FIFO number
80 Int_t fTimeBin[kModulesPerDDL][2]; // current timebin [ncarlos][nchannels]
81 Int_t fAnode[kModulesPerDDL][2]; // current anode [ncarlos][nchannels]
82 Int_t fDDL; //current ddl number
83 UInt_t fICarlosWord[kCarlosWords]; // Carlos words
84 UInt_t fIFifoWord[kFifoWords]; // FIFO words
85 Int_t fICountFoot[kModulesPerDDL]; // counter for carlos footer words
86 Int_t fEndWords; //number of 3f1f1f1f
87 Int_t fResetSkip; //if it is 0, the ResetSkip Funcion is called
88 ClassDef(AliITSRawStreamSDD, 8) // class for reading ITS SDD raw digits