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86ad02d4 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /////////////////////////////////////////////////////////////////////////////// | |
17 | /// | |
18 | /// This class provides access to CTP DDL raw data. | |
19 | /// | |
20 | /// The raw data format is taken form the trigger TDR. | |
21 | /// The meaning of the trigger class and cluster masks | |
22 | /// are given in the trigger description file (in /data) | |
23 | /// and in the AliCentralTrigger class. | |
24 | /// | |
25 | /////////////////////////////////////////////////////////////////////////////// | |
26 | ||
27 | #include "AliCTPRawStream.h" | |
28 | #include "AliRawReader.h" | |
29 | #include "AliLog.h" | |
362c9d61 | 30 | #include "AliDAQ.h" |
86ad02d4 | 31 | |
32 | ClassImp(AliCTPRawStream) | |
33 | ||
34 | //_____________________________________________________________________________ | |
35 | AliCTPRawStream::AliCTPRawStream(AliRawReader* rawReader) : | |
36 | fClassMask(0), | |
37 | fClusterMask(0), | |
38 | fRawReader(rawReader) | |
39 | { | |
40 | // create an object to read CTP raw data | |
41 | // | |
42 | // select the raw data corresponding to | |
43 | // the CTP detector id | |
44 | fRawReader->Reset(); | |
362c9d61 | 45 | AliDebug(1,Form("Selecting raw data for detector %d",AliDAQ::DetectorID("TRG"))); |
46 | fRawReader->Select("TRG"); | |
86ad02d4 | 47 | } |
48 | ||
49 | //_____________________________________________________________________________ | |
50 | AliCTPRawStream::AliCTPRawStream(const AliCTPRawStream& stream) : | |
51 | TObject(stream), | |
52 | fClassMask(0), | |
53 | fClusterMask(0), | |
54 | fRawReader(NULL) | |
55 | { | |
56 | // Copy constructor | |
57 | AliFatal("Copy constructor not implemented"); | |
58 | } | |
59 | ||
60 | //_____________________________________________________________________________ | |
61 | AliCTPRawStream& AliCTPRawStream::operator = (const AliCTPRawStream& | |
62 | /* stream */) | |
63 | { | |
64 | AliFatal("Assignment operator not implemented"); | |
65 | return *this; | |
66 | } | |
67 | ||
68 | //_____________________________________________________________________________ | |
69 | AliCTPRawStream::~AliCTPRawStream() | |
70 | { | |
71 | // destructor | |
72 | } | |
73 | ||
74 | //_____________________________________________________________________________ | |
75 | void AliCTPRawStream::Reset() | |
76 | { | |
77 | // reset raw stream params | |
78 | ||
79 | fClassMask = fClusterMask = 0; | |
80 | ||
81 | if (fRawReader) fRawReader->Reset(); | |
82 | } | |
83 | ||
84 | //_____________________________________________________________________________ | |
85 | Bool_t AliCTPRawStream::Next() | |
86 | { | |
87 | // read the whole CTP raw data stream | |
88 | // return kFALSE in case of error | |
89 | ||
90 | UChar_t *data = NULL; | |
91 | ||
92 | if (!fRawReader->ReadNextData(data)) return kFALSE; | |
93 | ||
94 | if (fRawReader->GetDataSize() != 32) { | |
95 | AliError(Form("Wrong CTP raw data size: %d",fRawReader->GetDataSize())); | |
96 | return kFALSE; | |
97 | } | |
98 | ||
99 | fClusterMask = data[12] >> 2; | |
100 | ||
101 | fClassMask = ((ULong64_t)data[12] & 0x3) << 48; | |
102 | ||
103 | fClassMask |= (ULong64_t)data[16] << 36; | |
104 | fClassMask |= ((ULong64_t)data[17] & 0xF) << 44; | |
105 | ||
106 | fClassMask |= (ULong64_t)data[20] << 24; | |
107 | fClassMask |= ((ULong64_t)data[21] & 0xF) << 32; | |
108 | ||
109 | fClassMask |= (ULong64_t)data[24] << 12; | |
110 | fClassMask |= ((ULong64_t)data[25] & 0xF) << 20; | |
111 | ||
112 | fClassMask |= (ULong64_t)data[28]; | |
113 | fClassMask |= ((ULong64_t)data[29] & 0xF) << 8; | |
114 | ||
115 | return kTRUE; | |
116 | } | |
117 |