1 #ifndef ALITRDRAWSTREAM_H
2 #define ALITRDRAWSTREAM_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 TRD digits in raw data. //
12 ///////////////////////////////////////////////////////////////////////////////
18 class AliTRDdigitsManager;
19 class AliTRDdataArrayI;
22 const UInt_t end_of_tracklet_marker = 0xAAAAAAAA; /*This marks the end of tracklet data words*/
23 const UInt_t end_of_event_marker = 0x00000000; /*This marks the end of half-chamber-data*/
25 class AliTRDRawStream: public TObject {
30 AliTRDRawStream(AliRawReader *rawReader);
31 AliTRDRawStream(AliRawReader *rawReader, AliTRDdigitsManager *man, AliTRDdataArrayI *dig);
32 virtual ~AliTRDRawStream();
34 virtual Bool_t Next(); // Next function (for fRawVersion = 0 (Bogdans first version))
35 virtual Bool_t ReadAll(); // Read function (for fRawVersion > 0)
37 Int_t GetDetector() const { return fDetector; };
38 Int_t GetPrevDetector() const { return fPrevDetector; };
39 Bool_t IsNewDetector() const { return fDetector != fPrevDetector; };
40 Int_t GetNPads() const { return fNPads; };
41 Int_t GetRow() const { return fRow; };
42 Int_t GetPrevRow() const { return fPrevRow; };
43 Bool_t IsNewRow() const { return (fRow != fPrevRow) || IsNewDetector(); };
44 Int_t GetColumn() const { return fColumn; };
45 Int_t GetPrevColumn() const { return fPrevColumn; };
46 Bool_t IsNewColumn() const { return (fColumn != fPrevColumn) || IsNewRow(); };
47 Int_t GetTime() const { return fTime-1; };
48 Int_t GetSignal() const { return fSignal; };
50 enum { kDDLOffset = 0x400 }; // Offset for DDL numbers
52 void SetDigitsManager(AliTRDdigitsManager *man) { fDigitsManager = man; };
53 void SetDigits(AliTRDdataArrayI *dig) { fDigits = dig; };
55 AliTRDdigitsManager *GetDigitsManager() const { return fDigitsManager; };
57 Bool_t SetRawVersion(Int_t rv);
58 Int_t GetRawVersion() const { return fRawVersion; };
60 // Check if the link has optical power (HC sends data)
61 Bool_t IsGTULinkActive(Int_t sm, Int_t la, Int_t sta, Int_t side)
62 { return ( ((fGTUlinkMask[sm][sta]) >> (2*la+side)) & 0x1 ); };
65 Int_t fSig[3]; // Signals in the three time bins from Data Word
66 Int_t fADC; // MCM ADC channel and Time Bin of word 1
67 Int_t fTB; // MCM ADC channel and Time Bin of word 1
68 Int_t fEv; // MCM Event number and position of current MCM on TRD chamber
69 Int_t fROB; // MCM Event number and position of current MCM on TRD chamber
70 Int_t fMCM; // MCM Event number and position of current MCM on TRD chamber
71 Int_t fSM; // Position of CURRENT half chamber in full TRD
72 Int_t fLAYER; // Position of CURRENT half chamber in full TRD
73 Int_t fSTACK; // Position of CURRENT half chamber in full TRD
74 Int_t fROC; // Position of CURRENT half chamber in full TRD
75 Int_t fSIDE; // Position of CURRENT half chamber in full TRD
76 Int_t fDCS; // DCS board number read from data (HC header)
78 Int_t fCOL; // Detector Pad coordinates
80 Int_t fBCctr; // Counters from HC header (>=V2)
81 Int_t fPTctr; // Counters from HC header (>=V2)
82 Int_t fPTphase; // Counters from HC header (>=V2)
83 Int_t fRVmajor; // Raw version numbers and number of additional HC headerwords (>=V2)
84 Int_t fRVminor; // Raw version numbers and number of additional HC headerwords (>=V2)
85 Int_t fHCHWords; // Raw version numbers and number of additional HC headerwords (>=V2)
86 Int_t fTBins; // Number of time bins read from HC header (>=V2)
87 Int_t fTCon; // Filter settings read from HC header (>=V2)
88 Int_t fPEDon; // Filter settings read from HC header (>=V2)
89 Int_t fGAINon; // Filter settings read from HC header (>=V2)
90 Int_t fFiltered; // Filter settings read from HC header (>=V2)
92 Int_t fHCHctr1; // HC and MCM Header counter
93 Int_t fHCHctr2; // HC and MCM Header counter
94 Int_t fMCMHctr1; // HC and MCM Header counter
95 Int_t fMCMHctr2; // HC and MCM Header counter
96 Int_t fGTUctr1; // GTU LinkMask Counter
97 Int_t fGTUctr2; // GTU LinkMask Counter
99 Float_t fTracklPID; // Tracklet parameters
100 Float_t fTracklDefL; // Tracklet parameters
101 Float_t fTracklPadPos; // Tracklet parameters
102 Int_t fTracklPadRow; // Tracklet parameters
104 UShort_t fGTUlinkMask[18][5]; // Mask with active links
108 AliTRDRawStream(const AliTRDRawStream &stream);
109 AliTRDRawStream &operator=(const AliTRDRawStream &stream);
111 AliRawReader *fRawReader; // Object for reading the raw data
113 // The following is used by V0 (from Bogdan, offline use only):
114 Int_t fCount; // Counter of bytes to be read for current detector
115 Int_t fDetector; // Index of current detector
116 Int_t fPrevDetector; // Index of previous detector
117 Int_t fNPads; // Number of active pads
118 Int_t fRow; // Index of current pad row
119 Int_t fPrevRow; // Index of previous pad row
120 Int_t fColumn; // Index of current pad column
121 Int_t fPrevColumn; // Index of previous pad column
122 Int_t fTime; // Index of current time bin
123 Int_t fSignal; // Signal in ADC counts
125 // This is again new:
126 Int_t fRawVersion; // Which version of raw data decoding is used
127 UInt_t fDataWord; // The current 32 bit data word
128 Int_t fStatus; // Status of Raw data Reading
130 Int_t fRowMax; // Maximum number of pad rows and columns
131 Int_t fColMax; // Maximum number of pad rows and columns
132 Bool_t fChamberDone[540]; // Chamber was processed already?
136 AliTRDgeometry *fGeo; // TRD geometry
138 AliTRDdigitsManager *fDigitsManager; //! Manager for the output digits
139 AliTRDdataArrayI *fDigits; //! The Output digits
140 AliTRDdataArrayI *fTrack0; //! The track dictionary
141 AliTRDdataArrayI *fTrack1; //! The track dictionary
142 AliTRDdataArrayI *fTrack2; //! The track dictionary
144 void DecodeHCheader(Int_t timeBins);
145 void DecodeHCheaderV1(); // Valid for fRawversion = 1
146 void DecodeHCheaderV2(Int_t imeBins); // Valid for fRawversion = 2,3,4
148 void DecodeMCMheader();
149 void DecodeMCMheaderV1(); // Valid for fRawversion = 1,2,3,4
151 void DecodeTracklet();
152 void DecodeTrackletV1(); // Valid for fRawversion = 1,2,3,4
154 void DecodeGTUlinkMask();
155 void DecodeGTUlinkMaskV1(); // Valid for fRawversion = 1,2,3,4
157 ClassDef(AliTRDRawStream, 2) // Class for reading TRD raw digits