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2906f4c2 | 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 | /// | |
1ba0280f | 10 | /// This class provides access to ITS SDD digits in raw data |
11 | /// (default=simulated data). | |
2906f4c2 | 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 | ||
1ba0280f | 26 | virtual Int_t GetAnode() const {return fCoord1;} |
27 | virtual Int_t GetTime() const {return fCoord2;} | |
28 | virtual Int_t GetChannel() const {return fChannel;} | |
a97b3678 | 29 | virtual Int_t ReadJitter() const {return 0;} |
30 | virtual Int_t GetCarlosId() const {return fCarlosId;} | |
31 | virtual void SetLowCarlosThreshold(Int_t th, Int_t i) | |
32 | {fLowThreshold[i]=th;} | |
1ba0280f | 33 | static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule) |
34 | {return fgkDDLModuleMap[iDDL][iModule];} | |
a97b3678 | 35 | virtual void Reset(); |
765a9f95 | 36 | virtual Bool_t ResetSkip(Int_t ddln); |
2906f4c2 | 37 | |
a97b3678 | 38 | enum {kDDLsNumber = 24}; // number of DDLs in SDD |
39 | enum {kModulesPerDDL = 12}; // number of modules in each DDL | |
765a9f95 | 40 | enum {kCarlosWords = 12}; // number of FIFOCARLOS Words |
41 | enum {kFifoWords = 4}; // number of FIFO Words | |
42 | enum ESDDRawStreamError { | |
39a7c5cc | 43 | kDataError = 1, |
44 | kDataFormatErr = 2 | |
45 | }; | |
1ba0280f | 46 | protected: |
47 | static const Int_t fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL]; // mapping DDL/module -> module number | |
48 | ||
49 | virtual UInt_t ReadBits(); | |
50 | virtual Int_t DecompAmbra(Int_t value) const; | |
2906f4c2 | 51 | |
38300302 | 52 | static const UInt_t fgkCodeLength[8]; //code length |
2906f4c2 | 53 | |
54 | UInt_t fData; // data read for file | |
a97b3678 | 55 | Int_t fSkip[kDDLsNumber];// number of skipped words |
56 | Int_t fCarlosId; // carlos ID | |
57 | Int_t fEventId; // event ID from header | |
1ba0280f | 58 | Int_t fChannel; // current channel |
59 | Int_t fJitter; // jitter between L0 and pascal stop (x25ns) | |
a97b3678 | 60 | ULong64_t fChannelData[kModulesPerDDL][2];// packed data for the 2 channels |
61 | UInt_t fLastBit[kModulesPerDDL][2]; // last filled bit in fChannelData | |
62 | UInt_t fChannelCode[kModulesPerDDL][2];// current channel code | |
63 | Bool_t fReadCode[kModulesPerDDL][2]; // next bits are code or data | |
64 | UInt_t fReadBits[kModulesPerDDL][2]; // number of bits to read | |
1ba0280f | 65 | Int_t fLowThreshold[2]; // low Carlos threshold |
a97b3678 | 66 | Int_t fNCarlos; // number of Carlos |
765a9f95 | 67 | Int_t fNfifo[kFifoWords]; |
a97b3678 | 68 | Int_t fTimeBin[kModulesPerDDL][2]; // current timebin [ncarlos][nchannels] |
69 | Int_t fAnode[kModulesPerDDL][2]; // current anode [ncarlos][nchannels] | |
70 | Int_t fDDL; //current ddl number | |
27639c72 | 71 | UInt_t fICarlosWord[kCarlosWords]; |
72 | UInt_t fIFifoWord[kFifoWords]; | |
73 | Int_t fICountFoot[kModulesPerDDL]; | |
74 | Int_t fIdcd; // fifo counter, for debugging, to be removed when the code is stabilised | |
75 | ClassDef(AliITSRawStreamSDD, 5) // class for reading ITS SDD raw digits | |
2906f4c2 | 76 | }; |
77 | ||
78 | #endif |