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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 | ||
17 | class 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 | ||
36 | // module mapping, iModule = halfStaveNr*2+chipAddr/5 | |
37 | static Int_t GetModuleNumber(UInt_t iDDL, UInt_t iModule) {return fgkDDLModuleMap[iDDL][iModule];} | |
38 | ||
39 | Bool_t GetHalfStavePresent(UInt_t hs); | |
40 | ||
41 | // use the methods below to extract the information from the calibration header | |
42 | UInt_t GetHrouterNr() const {return (fCalHeadWord[0] & 0x0000003f);} | |
43 | Bool_t GetHhalfStaveScanned(UInt_t hs) const; | |
44 | UInt_t GetHtype() const {return (Int_t)((fCalHeadWord[1]) & 0x000000ff);} | |
45 | Bool_t GetHdataFormat() const {return (Bool_t)(((fCalHeadWord[1]) & 0x00000100)>>8);} | |
46 | UInt_t GetHtriggers() const {return fCalHeadWord[2];} | |
47 | Bool_t GetHchipPresent(UInt_t hs, UInt_t chip) const; | |
48 | UInt_t GetHdacStart() const {return ((fCalHeadWord[5]>>24) & 0x000000ff);} | |
49 | UInt_t GetHdacEnd() const {return ((fCalHeadWord[5]>>16) & 0x000000ff);} | |
50 | UInt_t GetHdacStep() const {return ((fCalHeadWord[5]>>8) & 0x000000ff);} | |
51 | UInt_t GetHdacId() const {return ((fCalHeadWord[5]) & 0x000000ff);} | |
52 | UInt_t GetHrowStart() const {return (UInt_t) ((fCalHeadWord[6]>>24) & 0x000000ff);} | |
53 | UInt_t GetHrowEnd() const {return (UInt_t) ((fCalHeadWord[6]>>16) & 0x000000ff);} | |
54 | UInt_t GetHrowValue() const {return (UInt_t) ((fCalHeadWord[6]>> 8) & 0x000000ff);} | |
55 | UInt_t GetHdacValue() const {return (Int_t) ((fCalHeadWord[6]) & 0x000000ff);} | |
56 | UInt_t GetHdacHigh(UInt_t hs) const; | |
57 | UInt_t GetHdacLow(UInt_t hs) const; | |
58 | UInt_t GetHTPAmp(UInt_t hs) const; | |
2906f4c2 | 59 | |
2906f4c2 | 60 | enum {kDDLsNumber = 20}; // number of DDLs in SPD |
61 | enum {kModulesPerDDL = 12}; // number of modules in each DDL | |
c42b9ed0 | 62 | enum {kCalHeadLenMax = 16}; // maximum number of calib header words |
2906f4c2 | 63 | |
64 | private : | |
65 | static const Int_t fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL]; // mapping DDL/module -> module number | |
66 | ||
c42b9ed0 | 67 | Bool_t ReadNextShort(); |
68 | Bool_t ReadNextInt(); | |
69 | void NewEvent(); | |
70 | ||
71 | Int_t fEventNumber; // chip event counter | |
72 | UShort_t fChipAddr; // chip nr | |
73 | UShort_t fHalfStaveNr; // half stave nr | |
74 | UInt_t fCol; // chip column nr | |
75 | UInt_t fRow; // chip row nr | |
76 | UInt_t fCalHeadWord[kCalHeadLenMax]; // calibration header words | |
2906f4c2 | 77 | |
c42b9ed0 | 78 | UShort_t fData; // 16 bit data word read |
79 | UInt_t fOffset; // offset for cell column | |
80 | UInt_t fHitCount; // counter of hits | |
72600597 | 81 | UChar_t fDataChar1, fDataChar2, fDataChar3, fDataChar4; // temps part of a 32bit word |
c42b9ed0 | 82 | Bool_t fFirstWord; // keeps track of which of the two 16bit words out of the 32bit word to read when ReadNextShort is called |
83 | Bool_t fCalHeadRead[20]; // calibration header read flags (reset at new event) | |
84 | UInt_t fPrevEventId; // previous event id (needed to know if there is a new event) | |
72600597 | 85 | |
2906f4c2 | 86 | ClassDef(AliITSRawStreamSPD, 0) // class for reading ITS SPD raw digits |
87 | }; | |
88 | ||
89 | #endif |