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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" |
ce9ace8c | 31 | #include "AliTriggerIR.h" |
86ad02d4 | 32 | |
33 | ClassImp(AliCTPRawStream) | |
34 | ||
35 | //_____________________________________________________________________________ | |
36 | AliCTPRawStream::AliCTPRawStream(AliRawReader* rawReader) : | |
ce9ace8c | 37 | fIRArray("AliTriggerIR",3), |
4bc0c995 | 38 | fOrbit(0), |
39 | fBC(0), | |
40 | fL0TriggerInputs(0), | |
41 | fL1TriggerInputs(0), | |
42 | fL2TriggerInputs(0), | |
86ad02d4 | 43 | fClassMask(0), |
44 | fClusterMask(0), | |
45 | fRawReader(rawReader) | |
46 | { | |
47 | // create an object to read CTP raw data | |
48 | // | |
49 | // select the raw data corresponding to | |
50 | // the CTP detector id | |
51 | fRawReader->Reset(); | |
362c9d61 | 52 | AliDebug(1,Form("Selecting raw data for detector %d",AliDAQ::DetectorID("TRG"))); |
53 | fRawReader->Select("TRG"); | |
86ad02d4 | 54 | } |
55 | ||
56 | //_____________________________________________________________________________ | |
57 | AliCTPRawStream::AliCTPRawStream(const AliCTPRawStream& stream) : | |
58 | TObject(stream), | |
ce9ace8c | 59 | fIRArray("AliTriggerIR",3), |
4bc0c995 | 60 | fOrbit(0), |
61 | fBC(0), | |
62 | fL0TriggerInputs(0), | |
63 | fL1TriggerInputs(0), | |
64 | fL2TriggerInputs(0), | |
86ad02d4 | 65 | fClassMask(0), |
66 | fClusterMask(0), | |
67 | fRawReader(NULL) | |
68 | { | |
69 | // Copy constructor | |
70 | AliFatal("Copy constructor not implemented"); | |
71 | } | |
72 | ||
73 | //_____________________________________________________________________________ | |
74 | AliCTPRawStream& AliCTPRawStream::operator = (const AliCTPRawStream& | |
75 | /* stream */) | |
76 | { | |
77 | AliFatal("Assignment operator not implemented"); | |
78 | return *this; | |
79 | } | |
80 | ||
81 | //_____________________________________________________________________________ | |
82 | AliCTPRawStream::~AliCTPRawStream() | |
83 | { | |
84 | // destructor | |
ce9ace8c | 85 | fIRArray.Delete(); |
86ad02d4 | 86 | } |
87 | ||
88 | //_____________________________________________________________________________ | |
89 | void AliCTPRawStream::Reset() | |
90 | { | |
91 | // reset raw stream params | |
ce9ace8c | 92 | fIRArray.Clear(); |
86ad02d4 | 93 | |
94 | fClassMask = fClusterMask = 0; | |
95 | ||
96 | if (fRawReader) fRawReader->Reset(); | |
97 | } | |
98 | ||
99 | //_____________________________________________________________________________ | |
100 | Bool_t AliCTPRawStream::Next() | |
101 | { | |
102 | // read the whole CTP raw data stream | |
103 | // return kFALSE in case of error | |
104 | ||
105 | UChar_t *data = NULL; | |
106 | ||
43e9e2a9 | 107 | // CTP raw data does not contain CDH |
108 | fRawReader->RequireHeader(kFALSE); | |
109 | ||
110 | if (!fRawReader->ReadNextData(data)) { | |
111 | fRawReader->RequireHeader(kTRUE); | |
112 | return kFALSE; | |
113 | } | |
86ad02d4 | 114 | |
ce9ace8c | 115 | if ((fRawReader->GetDataSize()) < 32 || |
116 | ((fRawReader->GetDataSize() % 4) != 0)) { | |
86ad02d4 | 117 | AliError(Form("Wrong CTP raw data size: %d",fRawReader->GetDataSize())); |
43e9e2a9 | 118 | fRawReader->RequireHeader(kTRUE); |
86ad02d4 | 119 | return kFALSE; |
120 | } | |
121 | ||
4bc0c995 | 122 | fBC = data[0]; |
123 | fBC |= (data[1] & 0xF) << 8; | |
124 | ||
125 | fOrbit = data[4] << 12; | |
126 | fOrbit |= (data[5] & 0xF) << 20; | |
127 | fOrbit |= data[8]; | |
128 | fOrbit |= (data[9] & 0xF) << 8; | |
129 | ||
86ad02d4 | 130 | fClusterMask = data[12] >> 2; |
131 | ||
132 | fClassMask = ((ULong64_t)data[12] & 0x3) << 48; | |
133 | ||
134 | fClassMask |= (ULong64_t)data[16] << 36; | |
135 | fClassMask |= ((ULong64_t)data[17] & 0xF) << 44; | |
136 | ||
137 | fClassMask |= (ULong64_t)data[20] << 24; | |
138 | fClassMask |= ((ULong64_t)data[21] & 0xF) << 32; | |
139 | ||
140 | fClassMask |= (ULong64_t)data[24] << 12; | |
141 | fClassMask |= ((ULong64_t)data[25] & 0xF) << 20; | |
142 | ||
143 | fClassMask |= (ULong64_t)data[28]; | |
144 | fClassMask |= ((ULong64_t)data[29] & 0xF) << 8; | |
145 | ||
ce9ace8c | 146 | if (fRawReader->GetDataSize() == 32) { |
4bc0c995 | 147 | AliDebug(1,"No trigger input and interaction records found"); |
ce9ace8c | 148 | fRawReader->RequireHeader(kTRUE); |
149 | return kTRUE; | |
150 | } | |
151 | ||
4bc0c995 | 152 | // Read detector trigger inputs |
153 | if (fRawReader->GetDataSize() < 52) { | |
154 | AliError(Form("Wrong CTP raw data size: %d",fRawReader->GetDataSize())); | |
155 | fRawReader->RequireHeader(kTRUE); | |
156 | return kFALSE; | |
157 | } | |
158 | ||
159 | fL0TriggerInputs = data[32] << 12; | |
160 | fL0TriggerInputs |= (data[33] & 0xF) << 20; | |
161 | fL0TriggerInputs |= data[36]; | |
162 | fL0TriggerInputs |= (data[37] & 0xF) << 8; | |
163 | ||
164 | fL1TriggerInputs = data[40] << 12; | |
165 | fL1TriggerInputs |= (data[41] & 0xF) << 20; | |
166 | fL1TriggerInputs |= data[44]; | |
167 | fL1TriggerInputs |= (data[45] & 0xF) << 8; | |
168 | ||
169 | fL2TriggerInputs = data[48] << 12; | |
170 | fL2TriggerInputs |= (data[49] & 0xF) << 20; | |
171 | ||
172 | if (fRawReader->GetDataSize() == 52) { | |
173 | AliDebug(1,"No interaction records found"); | |
174 | fRawReader->RequireHeader(kTRUE); | |
9b8aed53 | 175 | return kTRUE; |
4bc0c995 | 176 | } |
177 | ||
ce9ace8c | 178 | // Read IRs |
4bc0c995 | 179 | Int_t iword = 52; |
ce9ace8c | 180 | UChar_t level = 0; |
181 | UInt_t *irdata = NULL; | |
182 | UInt_t irsize = 0; | |
4bc0c995 | 183 | UInt_t orbit = 0; |
ce9ace8c | 184 | Bool_t incomplete = kFALSE, transerr = kFALSE; |
185 | while (iword < fRawReader->GetDataSize()) { | |
186 | if (data[iword+1] & 0x80) { | |
187 | UChar_t flag = ((data[iword+1] >> 4) & 0x3); | |
188 | if (flag == 0) { | |
189 | if (irdata) { | |
190 | new (fIRArray[fIRArray.GetEntriesFast()]) | |
191 | AliTriggerIR(orbit,irsize,irdata,incomplete,transerr); | |
192 | irdata = NULL; irsize = 0; | |
193 | } | |
194 | level = 1; | |
195 | orbit = data[iword] << 12; | |
196 | orbit |= (data[iword+1] & 0xF) << 20; | |
197 | transerr = ((data[iword+1] >> 6) & 0x1); | |
198 | iword += 4; | |
199 | continue; | |
200 | } | |
201 | else if (flag == 3) { | |
202 | if (level == 1) { | |
203 | level = 2; | |
204 | orbit |= data[iword]; | |
205 | orbit |= ((data[iword+1] & 0xF) << 8); | |
206 | iword += 4; | |
207 | continue; | |
208 | } | |
209 | } | |
210 | UShort_t bc = data[iword]; | |
211 | bc |= ((data[iword] & 0xF) << 8); | |
212 | if (bc == 0xFFF) { | |
213 | incomplete = kTRUE; | |
214 | } | |
215 | else { | |
216 | if (level == 2) { | |
217 | level = 3; | |
218 | irdata = (UInt_t *)&data[iword]; | |
219 | irsize = 0; | |
220 | } | |
221 | if (level == 3) { | |
222 | irsize++; | |
223 | } | |
224 | } | |
225 | } | |
226 | else | |
227 | AliWarning(Form("Invalid interaction record (%d %d)",iword,fRawReader->GetDataSize())); | |
228 | ||
229 | iword += 4; | |
230 | } | |
231 | ||
232 | if (irdata) { | |
233 | new (fIRArray[fIRArray.GetEntriesFast()]) | |
234 | AliTriggerIR(orbit,irsize,irdata,incomplete,transerr); | |
235 | irdata = NULL; irsize = 0; | |
236 | } | |
237 | ||
43e9e2a9 | 238 | // Restore the raw-reader state!! |
239 | fRawReader->RequireHeader(kTRUE); | |
240 | ||
86ad02d4 | 241 | return kTRUE; |
242 | } | |
243 |