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;
21 const UInt_t kEndoftrackletmarker = 0xAAAAAAAA; /*This marks the end of tracklet data words*/
22 const UInt_t kEndofrawdatamarker = 0x00000000; /*This marks the end of half-chamber-data*/
23 const UInt_t kSizeWord = sizeof(UInt_t);
25 class AliTRDRawStream: public TObject {
30 AliTRDRawStream(AliRawReader *rawReader);
31 virtual ~AliTRDRawStream();
33 virtual Bool_t Next(); // Read the next data
34 virtual Int_t NextChamber(AliTRDdigitsManager *man); // read next chamber data
35 virtual Int_t Init(); // Init for the fRawVersion > 1
37 enum { kDDLOffset = 0x400 }; // Offset for DDL numbers
39 Bool_t SetRawVersion(Int_t rv);
40 Int_t GetRawVersion() const { return fRawVersion; };
41 void SetRawReader(AliRawReader *rawReader);
43 // Get Filter settings (does not make a lot of sense):
44 Int_t TRAPfilterTCon() const { return fTCon; };
45 Int_t TRAPfilterPEDon() const { return fPEDon; };
46 Int_t TRAPfilterGAINon() const { return fGAINon; };
47 Int_t TRAPsendsUnfilteredData() const { return fBypass; };
49 // Get Tracklet parameters (does not make a lot of sense):
50 Float_t GetTrackletPID() const { return fTracklPID; };
51 Float_t GetTrackletDeflLength() const { return fTracklDefL; };
52 Float_t GetTrackletPadPos() const { return fTracklPadPos; };
53 Int_t GetTrackletPadRow() const { return fTracklPadRow; };
55 // Check if the link has optical power (HC sends data)
56 Bool_t IsGTULinkActive(Int_t sm, Int_t la, Int_t sta, Int_t side)
57 { return ( ((fGTUlinkMask[sm][sta]) >> (2*la+side)) & 0x1 ); };
59 Int_t *GetSignals() { return fSig;} // Signals in the three time bins from Data Word
60 Int_t GetADC() const { return fADC;} // MCM ADC channel and Time Bin of word 1
61 Int_t GetTimeBin() const { return fTB - 3;} // MCM ADC channel and Time Bin of word 1
62 Int_t GetEventNumber() const { return fEv;} // MCM Event number and position of current MCM on TRD chamber
63 Int_t GetROB() const { return fROB;} // MCM Event number and position of current MCM on TRD chamber
64 Int_t GetMCM() const { return fMCM;} // MCM Event number and position of current MCM on TRD chamber
65 Int_t GetSM() const { return fSM;} // Position of CURRENT half chamber in full TRD
66 Int_t GetLayer() const { return fLAYER;} // PLANE = Position of CURRENT half chamber in full TRD
67 Int_t GetStack() const { return fSTACK;} // CHAMBER = Position of CURRENT half chamber in full TRD
68 Int_t GetROC() const { return fROC;} // Position of CURRENT half chamber in full TRD
69 Int_t GetSide() const { return fSIDE;} // Position of CURRENT half chamber in full TRD
70 Int_t GetDCS() const { return fDCS;} // DCS board number read from data (HC header)
71 Int_t GetRow() const { return fROW;}
72 Int_t GetCol() const { return fCOL;} // Detector Pad coordinates
73 Int_t GetDet() const { return fDET;} // helper
74 Int_t GetLastDet() const { return fLastDET;} // helper
75 Int_t GetMaxRow() const { return fRowMax;}
76 Int_t GetMaxCol() const { return fColMax;}
77 Int_t GetNumberOfTimeBins() const {return fTBins;}
81 Int_t fSig[3]; // Signals in the three time bins from Data Word
82 Int_t fADC; // MCM ADC channel and Time Bin of word 1
83 Int_t fTB; // MCM ADC channel and Time Bin of word 1
84 Int_t fEv; // MCM Event number and position of current MCM on TRD chamber
85 Int_t fROB; // MCM Event number and position of current MCM on TRD chamber
86 Int_t fMCM; // MCM Event number and position of current MCM on TRD chamber
87 Int_t fSM; // Position of CURRENT half chamber in full TRD
88 Int_t fLAYER; // Position of CURRENT half chamber in full TRD
89 Int_t fSTACK; // Position of CURRENT half chamber in full TRD
90 Int_t fROC; // Position of CURRENT half chamber in full TRD
91 Int_t fSIDE; // Position of CURRENT half chamber in full TRD
92 Int_t fDCS; // DCS board number read from data (HC header)
93 Int_t fROW; // Detector Row coordinates
94 Int_t fCOL; // Detector Pad coordinates
95 Int_t fDET; // Current detector - version > 1
96 Int_t fLastDET; // Previous detector - version > 1
98 Int_t fBCctr; // Counters from HC header (>=V2)
99 Int_t fPTctr; // Counters from HC header (>=V2)
100 Int_t fPTphase; // Counters from HC header (>=V2)
101 Int_t fRVmajor; // Raw version numbers and number of additional HC headerwords (>=V2)
102 Int_t fRVminor; // Raw version numbers and number of additional HC headerwords (>=V2)
103 Int_t fHCHWords; // Raw version numbers and number of additional HC headerwords (>=V2)
104 Int_t fTBins; // Number of time bins read from HC header (>=V2)
105 Bool_t fTCon; // Filter settings read from HC header (>=V2)
106 Bool_t fPEDon; // Filter settings read from HC header (>=V2)
107 Bool_t fGAINon; // Filter settings read from HC header (>=V2)
108 Bool_t fXTon; // Filter settings read from HC header (>=V2)
109 Bool_t fNonLinOn; // Filter settings read from HC header (>=V2)
110 Bool_t fBypass; // Filter settings read from HC header (>=V2)
111 Int_t fCommonAdditive; // Common baseline additive read from HC header (>=V2)
113 Bool_t fZeroSuppressed; // Data is zero suppressed
115 Int_t fHCHctr1; // HC and MCM Header counter
116 Int_t fHCHctr2; // HC and MCM Header counter
117 Int_t fMCMHctr1; // HC and MCM Header counter
118 Int_t fMCMHctr2; // HC and MCM Header counter
119 Int_t fGTUctr1; // GTU LinkMask Counter
120 Int_t fGTUctr2; // GTU LinkMask Counter
121 Int_t fHCdataCtr; // Data Counter for half chamber
123 Float_t fTracklPID; // Tracklet parameters
124 Float_t fTracklDefL; // Tracklet parameters
125 Float_t fTracklPadPos; // Tracklet parameters
126 Int_t fTracklPadRow; // Tracklet parameters
128 UShort_t fGTUlinkMask[18][5]; // Mask with active links
130 AliTRDRawStream(const AliTRDRawStream &stream);
131 AliTRDRawStream &operator=(const AliTRDRawStream &stream);
133 AliRawReader *fRawReader; // Object for reading the raw data
135 Int_t fRawVersion; // Which version of raw data decoding is used
137 Int_t fNextStatus; // Navigation in raw versions > 1
138 UInt_t fTbSwitch; // Time Bin Switch for internal use
139 UInt_t fTbSwitchCtr; // Counter for internal use
140 UInt_t fTimeWords; // Number of Words needed to store the data of 1 ADC ch.
141 UInt_t fWordCtr; // Word Counter
143 Int_t fRowMax; // Maximum number of pad rows and columns
144 Int_t fColMax; // Maximum number of pad rows and columns
146 Bool_t fADCmask[21]; // Mask of active ADCs for zero suppression
147 UShort_t fChamberDone[540]; // Chamber was processed already (1=1HC, 2=full chamber)
149 Int_t fRetVal; // Datadecode return
150 Int_t fEqID; // Equipment id
151 UInt_t fDataSize; // Size of the data available in the current buffer
152 Bool_t fSizeOK; // Did we read anything
153 UInt_t fCountBytes; // Bytes traversed in the buffer
154 UInt_t fBufSize; // Size of the current RawReader buffer
155 Bool_t fkBufferSet; // Is the RawReader buffer available
156 UChar_t *fPos; // Position in the buffer of the RawReader
157 UInt_t *fDataWord; // The pointer to the current 32 bit data word
158 UInt_t fTimeBinsCalib; // N of time bins retrieved from calibration
160 enum ETRDzRawStreamError {
161 kHCWordMissing = 1 //
162 ,kMCMADCMaskMissing = 2 //
163 ,kWrongMCMorROB = 3 //
164 ,kGTULinkMaskMissing = 4 //
165 ,kHCHeaderCorrupt = 5 //
166 ,kHCHeaderMissing = 6 //
167 ,kROBSideMismatch = 7 //
169 ,kWrongPadcolumn = 9 //
170 ,kTrackletRowMismatch = 10 //
171 ,kDataMaskError = 11 //
172 ,kADCNumberOverflow = 12 //
173 ,kADCChannelOverflow = 13 //
178 AliTRDgeometry *fGeo; // TRD geometry
180 void DecodeHCheader(Int_t timeBins);
181 void DecodeMCMheader();
182 void DecodeTracklet();
183 void DecodeGTUlinkMask();
184 Int_t DecodeDataWord();
185 Int_t DecodeDataWordV1V2(); // Valid for fRawversion = 1, 2, ...
186 Int_t DecodeDataWordV3(); // Valid for fRawversion = 3, ...
188 Int_t NextData(); // get the next piece of memory
190 enum { fkStart, fkStop, fkWordOK, fkNoMoreData, fkNextSM, fkNextHC, fkSeekNonEoTracklet, fkDecodeHC, fkNextMCM, fkNextData, fkReading};
192 ClassDef(AliTRDRawStream, 5) // Class for reading TRD raw digits