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3ea47630 | 1 | #ifndef ALIALTRORAWSTREAM_H |
2 | #define ALIALTRORAWSTREAM_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 is a base class for reading raw data digits in Altro format | |
7e18047e | 11 | /// The class is able to read both old and new RCU trailer formats |
9a090ccd | 12 | /// Switch between formats is done automatically using the last payload word. |
1e984421 | 13 | /// In case the Common Data Header is 7 32-bit words long, one |
14 | /// can use the fIsShortDataHeader flag. | |
3ea47630 | 15 | /// |
16 | /////////////////////////////////////////////////////////////////////////////// | |
17 | ||
18 | #include <TObject.h> | |
19 | ||
20 | class AliRawReader; | |
21 | ||
3ea47630 | 22 | class AliAltroRawStream: public TObject { |
23 | public : | |
24 | AliAltroRawStream(AliRawReader* rawReader); | |
25 | virtual ~AliAltroRawStream(); | |
26 | ||
3a291af4 | 27 | virtual void Reset(); |
28 | virtual Bool_t Next(); | |
3ea47630 | 29 | |
cf4af8c7 | 30 | Int_t GetDDLNumber() const { return fDDLNumber; } // Provide current DDL number |
31 | Int_t GetPrevDDLNumber() const { return fPrevDDLNumber; }// Provide previous DDL number | |
32 | Bool_t IsNewDDLNumber() const {return (fDDLNumber != fPrevDDLNumber);}; | |
33 | Int_t GetRCUId() const { return fRCUId; } // Provide current RCU identifier | |
34 | Int_t GetPrevRCUId() const { return fPrevRCUId; } // Provide previous RCU identifier | |
35 | Bool_t IsNewRCUId() const {return (fRCUId != fPrevRCUId);}; | |
36 | Int_t GetHWAddress() const { return fHWAddress; } // Provide current hardware address | |
37 | Int_t GetPrevHWAddress() const { return fPrevHWAddress; } // Provide previous hardware address | |
38 | Bool_t IsNewHWAddress() const {return (fHWAddress != fPrevHWAddress) || IsNewDDLNumber();}; | |
39 | Int_t GetTime() const { return fTime; } // Provide index of current time bin | |
40 | Int_t GetPrevTime() const { return fPrevTime; } // Provide index of previous time bin | |
41 | Bool_t IsNewTime() const {return (fTime != fPrevTime) || IsNewHWAddress();}; | |
42 | Int_t GetSignal() const { return fSignal; } // Provide signal in ADC counts | |
43 | Int_t GetTimeLength() const { return fTimeBunch; } // Provide total length of current time bunch | |
44 | ||
e68dc1cf | 45 | Int_t GetBranch() const; // Provide the branch index for the current hardware address |
46 | Int_t GetFEC() const; // Provide the front-end card index for the current hardware address | |
47 | Int_t GetAltro() const; // Provide the altro chip index for the current hardware address | |
48 | Int_t GetChannel() const; // Provide the channel index for the current hardware address | |
49 | ||
cf4af8c7 | 50 | Bool_t GetRCUTrailerData(UChar_t*& data) const; // Provide a pointer to RCU trailer |
51 | Int_t GetRCUTrailerSize() const { return fRCUTrailerSize; } // Provide size of RCU trailer | |
5e6235b5 | 52 | |
e7fd2555 | 53 | void SelectRawData(Int_t detId); // Select raw data for specific detector id |
362c9d61 | 54 | void SelectRawData(const char *detName); // Select raw data for specific detector name |
e7fd2555 | 55 | |
7e18047e | 56 | void SetNoAltroMapping(Bool_t flag) { fNoAltroMapping = flag; } // Specify whenever to use or not the altro mapping |
1e984421 | 57 | void SetShortDataHeader(Bool_t flag) { fIsShortDataHeader = flag; } // Specify whenever to assume or not a short CDH format |
7e18047e | 58 | |
776c3b9c | 59 | void PrintDebug() const; // Print debug information in case of decoding errors |
eb09ec9a | 60 | void AddMappingErrorLog(const char *message = NULL); |
61 | ||
62 | enum EAltroRawStreamError { | |
63 | kRCUTrailerSizeErr = 1, | |
64 | kAltroTrailerErr = 2, | |
65 | kBunchLengthReadErr = 3, | |
66 | kTimeBinReadErr = 4, | |
67 | kAmplitudeReadErr = 5, | |
68 | k32bitWordReadErr = 6, | |
7dcdcfe4 | 69 | kBadAltroMapping = 7, |
70 | kRCUTrailerErr = 8 | |
eb09ec9a | 71 | }; |
776c3b9c | 72 | |
3a291af4 | 73 | AliAltroRawStream& operator = (const AliAltroRawStream& stream); |
e7bee78b | 74 | AliAltroRawStream(const AliAltroRawStream& stream); |
75 | ||
76 | protected: | |
3a291af4 | 77 | |
e7fd2555 | 78 | Bool_t fNoAltroMapping; // temporary flag in case of no altro mapping is provided |
79 | Short_t fSegmentation[3]; // temporary container for the dummy trailer, to be removed | |
80 | ||
1e984421 | 81 | Bool_t fIsShortDataHeader; // flag used to select between normal and short CDH format |
7e18047e | 82 | |
e7fd2555 | 83 | private : |
3a291af4 | 84 | |
e7fd2555 | 85 | UShort_t GetNextWord(); |
86 | Bool_t ReadTrailer(); | |
87 | Bool_t ReadDummyTrailer(); | |
88 | void ReadBunch(); | |
89 | void ReadAmplitude(); | |
90 | Int_t GetPosition(); | |
5e6235b5 | 91 | UInt_t Get32bitWord(Int_t &index); |
e7fd2555 | 92 | |
93 | Int_t fDDLNumber; // index of current DDL number | |
5e6235b5 | 94 | Int_t fPrevDDLNumber;// index of previous DDL number |
95 | Int_t fRCUId; // current RCU identifier | |
96 | Int_t fPrevRCUId; // previous RCU identifier | |
3a291af4 | 97 | Short_t fHWAddress; // current hardware address |
98 | Short_t fPrevHWAddress;// previous hardware address | |
3ea47630 | 99 | Int_t fTime; // index of current time bin |
e7fd2555 | 100 | Int_t fPrevTime; // index of previous time bin |
3ea47630 | 101 | Int_t fSignal; // signal in ADC counts |
634692a1 | 102 | Int_t fTimeBunch; // total length of the current time bunch |
3ea47630 | 103 | |
104 | AliRawReader* fRawReader; // object for reading the raw data | |
105 | ||
3a291af4 | 106 | |
e7fd2555 | 107 | UChar_t* fData; // raw data |
3ea47630 | 108 | |
3ea47630 | 109 | Int_t fPosition; // current (10 bit) position in fData |
110 | Int_t fCount; // counter of words to be read for current trailer | |
111 | Int_t fBunchLength; // remaining number of signal bins in the current bunch | |
112 | ||
5e6235b5 | 113 | UChar_t* fRCUTrailerData; // pointer to RCU trailer data |
114 | Int_t fRCUTrailerSize; // size of RCU trailer data in bytes | |
115 | ||
3ea47630 | 116 | ClassDef(AliAltroRawStream, 0) // base class for reading Altro raw digits |
117 | }; | |
118 | ||
119 | #endif |