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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 */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | /// | |
10 | /// This class provides access to ITS SDD digits in raw data | |
11 | /// (default=simulated data). | |
12 | /////////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | #include "AliITSRawStream.h" | |
15 | ||
16 | class AliRawReader; | |
17 | ||
18 | ||
19 | class AliITSRawStreamSDD: public AliITSRawStream { | |
20 | public : | |
21 | AliITSRawStreamSDD(AliRawReader* rawReader); | |
22 | virtual ~AliITSRawStreamSDD() {}; | |
23 | ||
24 | virtual Bool_t Next(); | |
25 | ||
26 | virtual Int_t GetAnode() const {return fCoord1;} | |
27 | virtual Int_t GetTime() const {return fCoord2;} | |
28 | virtual Int_t GetChannel() const {return fChannel;} | |
29 | virtual Int_t ReadJitter() const {return 0;} | |
30 | virtual Int_t GetCarlosId() const {return fCarlosId;} | |
31 | ||
32 | virtual void SetLowCarlosThreshold(Int_t th, Int_t i) | |
33 | {fLowThreshold[i]=th;} | |
34 | virtual void SetNCarlos(Int_t nC=12){fNCarlos=nC;} | |
35 | static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule) | |
36 | {return fgkDDLModuleMap[iDDL][iModule];} | |
37 | virtual void Reset(); | |
38 | virtual Bool_t ResetSkip(Int_t ddln); | |
39 | ||
40 | enum {kDDLsNumber = 24}; // number of DDLs in SDD | |
41 | enum {kModulesPerDDL = 12}; // number of modules in each DDL | |
42 | enum {kCarlosWords = 12}; // number of FIFOCARLOS Words | |
43 | enum {kFifoWords = 4}; // number of FIFO Words | |
44 | enum ESDDRawStreamError { | |
45 | kDataError = 1, | |
46 | kDataFormatErr = 2 | |
47 | }; | |
48 | protected: | |
49 | static const Int_t fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL]; // mapping DDL/module -> module number | |
50 | ||
51 | virtual UInt_t ReadBits(); | |
52 | virtual Int_t DecompAmbra(Int_t value) const; | |
53 | ||
54 | static const UInt_t fgkCodeLength[8]; //code length | |
55 | ||
56 | UInt_t fData; // data read for file | |
57 | Int_t fSkip[kDDLsNumber];// number of skipped words | |
58 | Int_t fCarlosId; // carlos ID | |
59 | Int_t fEventId; // event ID from header | |
60 | Int_t fChannel; // current channel | |
61 | Int_t fJitter; // jitter between L0 and pascal stop (x25ns) | |
62 | ULong64_t fChannelData[kModulesPerDDL][2];// packed data for the 2 channels | |
63 | UInt_t fLastBit[kModulesPerDDL][2]; // last filled bit in fChannelData | |
64 | UInt_t fChannelCode[kModulesPerDDL][2];// current channel code | |
65 | Bool_t fReadCode[kModulesPerDDL][2]; // next bits are code or data | |
66 | UInt_t fReadBits[kModulesPerDDL][2]; // number of bits to read | |
67 | Int_t fLowThreshold[2]; // low Carlos threshold | |
68 | Int_t fNCarlos; // number of Carlos | |
69 | Int_t fNfifo[kFifoWords]; | |
70 | Int_t fTimeBin[kModulesPerDDL][2]; // current timebin [ncarlos][nchannels] | |
71 | Int_t fAnode[kModulesPerDDL][2]; // current anode [ncarlos][nchannels] | |
72 | Int_t fDDL; //current ddl number | |
73 | UInt_t fICarlosWord[kCarlosWords]; | |
74 | UInt_t fIFifoWord[kFifoWords]; | |
75 | Int_t fICountFoot[kModulesPerDDL]; | |
76 | Int_t fEndWords;//number of 3f1f1f1f | |
77 | Int_t fResetSkip; //if it is 0, the ResetSkip Funcion is called | |
78 | ClassDef(AliITSRawStreamSDD, 7) // class for reading ITS SDD raw digits | |
79 | }; | |
80 | ||
81 | #endif |