Additional protection (Francesco)
[u/mrichter/AliRoot.git] / ITS / AliITSRawStreamSPD.h
CommitLineData
2906f4c2 1#ifndef ALIITSRAWSTREAMSPD_H
2#define ALIITSRAWSTREAMSPD_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 SPD digits in raw data.
11///
12///////////////////////////////////////////////////////////////////////////////
13
14#include "AliITSRawStream.h"
15
16
17class AliITSRawStreamSPD: public AliITSRawStream {
18 public :
19 AliITSRawStreamSPD(AliRawReader* rawReader);
20 virtual ~AliITSRawStreamSPD() {};
21
22 virtual Bool_t Next();
c42b9ed0 23 virtual Bool_t ReadCalibHeader();
2906f4c2 24
c42b9ed0 25 // the 2 methods below are equivalent to AliITSRawStream::GetCoord1 and GetCoord2
26 // together with the AliITSRawStream::GetModuleID these are the "offline" coordinates
27 Int_t GetColumn() const {return fCoord1;};
28 Int_t GetRow() const {return fCoord2;};
29
30 // together with the AliRawReader::GetDDLID() these are the "online" coordinates
31 UShort_t GetHalfStaveNr() const {return fHalfStaveNr;}
32 UShort_t GetChipAddr() const {return fChipAddr;}
33 Int_t GetChipCol() const {return fCol;};
34 Int_t GetChipRow() const {return fRow;};
35
53ae21ce 36 // module mapping
6727e2db 37 static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule);
38 static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iHS, UInt_t iChip)
39 {return GetOfflineModuleFromOnline(iDDL,iHS,iChip);}
40
41 // coordinate conversions:
42 static Bool_t OfflineToOnline(UInt_t module, UInt_t colM, UInt_t RowM, UInt_t& eq, UInt_t& hs, UInt_t& chip, UInt_t& col, UInt_t& row);
43 static Bool_t OnlineToOffline(UInt_t eq, UInt_t hs, UInt_t chip, UInt_t col, UInt_t row, UInt_t& module, UInt_t& colM, UInt_t& rowM);
44 // coordinate conversions - offline->online
45 static UInt_t GetOnlineEqIdFromOffline(UInt_t module);
46 static UInt_t GetOnlineHSFromOffline(UInt_t module);
47 static UInt_t GetOnlineChipFromOffline(UInt_t module, UInt_t colM);
48 static UInt_t GetOnlineColFromOffline(UInt_t module, UInt_t colM);
49 static UInt_t GetOnlineRowFromOffline(UInt_t module, UInt_t rowM);
50 // coordinate conversions - online->offline
51 static UInt_t GetOfflineModuleFromOnline(UInt_t eqId, UInt_t hs, UInt_t chip);
52 static UInt_t GetOfflineColFromOnline(UInt_t eqId, UInt_t hs, UInt_t chip, UInt_t col);
53 static UInt_t GetOfflineRowFromOnline(UInt_t eqId, UInt_t hs, UInt_t chip, UInt_t row);
54
53ae21ce 55
c42b9ed0 56 Bool_t GetHalfStavePresent(UInt_t hs);
57
58 // use the methods below to extract the information from the calibration header
59 UInt_t GetHrouterNr() const {return (fCalHeadWord[0] & 0x0000003f);}
60 Bool_t GetHhalfStaveScanned(UInt_t hs) const;
61 UInt_t GetHtype() const {return (Int_t)((fCalHeadWord[1]) & 0x000000ff);}
62 Bool_t GetHdataFormat() const {return (Bool_t)(((fCalHeadWord[1]) & 0x00000100)>>8);}
63 UInt_t GetHtriggers() const {return fCalHeadWord[2];}
64 Bool_t GetHchipPresent(UInt_t hs, UInt_t chip) const;
65 UInt_t GetHdacStart() const {return ((fCalHeadWord[5]>>24) & 0x000000ff);}
66 UInt_t GetHdacEnd() const {return ((fCalHeadWord[5]>>16) & 0x000000ff);}
67 UInt_t GetHdacStep() const {return ((fCalHeadWord[5]>>8) & 0x000000ff);}
68 UInt_t GetHdacId() const {return ((fCalHeadWord[5]) & 0x000000ff);}
69 UInt_t GetHrowStart() const {return (UInt_t) ((fCalHeadWord[6]>>24) & 0x000000ff);}
70 UInt_t GetHrowEnd() const {return (UInt_t) ((fCalHeadWord[6]>>16) & 0x000000ff);}
71 UInt_t GetHrowValue() const {return (UInt_t) ((fCalHeadWord[6]>> 8) & 0x000000ff);}
72 UInt_t GetHdacValue() const {return (Int_t) ((fCalHeadWord[6]) & 0x000000ff);}
73 UInt_t GetHdacHigh(UInt_t hs) const;
74 UInt_t GetHdacLow(UInt_t hs) const;
75 UInt_t GetHTPAmp(UInt_t hs) const;
1fd93b67 76 Bool_t GetHminTHchipPresent(UInt_t chip) const;
2906f4c2 77
2906f4c2 78 enum {kDDLsNumber = 20}; // number of DDLs in SPD
79 enum {kModulesPerDDL = 12}; // number of modules in each DDL
c42b9ed0 80 enum {kCalHeadLenMax = 16}; // maximum number of calib header words
d9edae7b 81 enum ESPDRawStreamError {
82 kCalHeaderLengthErr = 1,
83 kDDLNumberErr = 2,
84 kEventNumberErr = 3,
85 kChipAddrErr = 4,
86 kStaveNumberErr = 5,
87 kNumbHitsErr = 6,
88 kWrongWordErr = 7,
89 kHalfStaveStatusErr = 8
90 };
2906f4c2 91
92 private :
93 static const Int_t fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL]; // mapping DDL/module -> module number
94
c42b9ed0 95 Bool_t ReadNextShort();
96 Bool_t ReadNextInt();
97 void NewEvent();
98
99 Int_t fEventNumber; // chip event counter
100 UShort_t fChipAddr; // chip nr
101 UShort_t fHalfStaveNr; // half stave nr
102 UInt_t fCol; // chip column nr
103 UInt_t fRow; // chip row nr
104 UInt_t fCalHeadWord[kCalHeadLenMax]; // calibration header words
2906f4c2 105
c42b9ed0 106 UShort_t fData; // 16 bit data word read
107 UInt_t fOffset; // offset for cell column
108 UInt_t fHitCount; // counter of hits
72600597 109 UChar_t fDataChar1, fDataChar2, fDataChar3, fDataChar4; // temps part of a 32bit word
c42b9ed0 110 Bool_t fFirstWord; // keeps track of which of the two 16bit words out of the 32bit word to read when ReadNextShort is called
111 Bool_t fCalHeadRead[20]; // calibration header read flags (reset at new event)
112 UInt_t fPrevEventId; // previous event id (needed to know if there is a new event)
72600597 113
2906f4c2 114 ClassDef(AliITSRawStreamSPD, 0) // class for reading ITS SPD raw digits
115};
116
117#endif