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939ae4b2 | 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 | ||
3d1463c8 | 16 | // $Id$ |
17 | ||
18 | //----------------------------------------------------------------------------- | |
00e86732 | 19 | /// \class AliMUONPayloadTracker |
939ae4b2 | 20 | /// Decodes rawdata from buffer and stores in TClonesArray. |
939ae4b2 | 21 | /// First version implement for Tracker |
22 | /// | |
00e86732 | 23 | /// \author Christian Finck |
3d1463c8 | 24 | //----------------------------------------------------------------------------- |
939ae4b2 | 25 | |
3fe5a267 | 26 | #include <TObjString.h> |
27 | ||
939ae4b2 | 28 | #include "AliMUONPayloadTracker.h" |
29 | ||
939ae4b2 | 30 | #include "AliMUONDspHeader.h" |
31 | #include "AliMUONBlockHeader.h" | |
32 | #include "AliMUONBusStruct.h" | |
33 | #include "AliMUONDDLTracker.h" | |
34 | ||
3fe5a267 | 35 | #include "AliMUONLogger.h" |
1ed3c5c2 | 36 | #include "AliLog.h" |
37 | ||
00e86732 | 38 | /// \cond CLASSIMP |
939ae4b2 | 39 | ClassImp(AliMUONPayloadTracker) |
00e86732 | 40 | /// \endcond |
939ae4b2 | 41 | |
42 | AliMUONPayloadTracker::AliMUONPayloadTracker() | |
43 | : TObject(), | |
9f5dcca3 | 44 | fBusPatchId(0), |
45 | fDspId(0), | |
46 | fBlkId(0), | |
47 | fMaxDDL(20), | |
939ae4b2 | 48 | fMaxBlock(2), |
49 | fMaxDsp(5), | |
9f5dcca3 | 50 | fMaxBus(5), |
51 | fDDLTracker(new AliMUONDDLTracker()), | |
52 | fBusStruct(new AliMUONBusStruct()), | |
53 | fBlockHeader(new AliMUONBlockHeader()), | |
1ed3c5c2 | 54 | fDspHeader(new AliMUONDspHeader()), |
3fe5a267 | 55 | fLog(new AliMUONLogger(1000)), |
56 | fParityErrors(0), | |
b48fc831 | 57 | fGlitchErrors(0), |
3fe5a267 | 58 | fPaddingErrors(0), |
59 | fWarnings(kTRUE) | |
939ae4b2 | 60 | { |
71a2d3aa | 61 | /// |
62 | /// create an object to decode MUON payload | |
63 | /// | |
939ae4b2 | 64 | |
939ae4b2 | 65 | } |
66 | ||
939ae4b2 | 67 | //___________________________________ |
68 | AliMUONPayloadTracker::~AliMUONPayloadTracker() | |
69 | { | |
71a2d3aa | 70 | /// |
71 | /// clean up | |
72 | /// | |
939ae4b2 | 73 | delete fDDLTracker; |
74 | delete fBusStruct; | |
75 | delete fBlockHeader; | |
76 | delete fDspHeader; | |
3fe5a267 | 77 | delete fLog; |
939ae4b2 | 78 | } |
79 | ||
80 | //______________________________________________________ | |
84ceeb06 | 81 | Bool_t AliMUONPayloadTracker::Decode(UInt_t* buffer, Int_t totalDDLSize) |
939ae4b2 | 82 | { |
84ceeb06 | 83 | |
71a2d3aa | 84 | /// Each DDL is made with 2 Blocks each of which consists of 5 DSP's at most |
85 | /// and each of DSP has at most 5 buspatches. | |
86 | /// The different structures, Block (CRT), DSP (FRT) and Buspatch, | |
87 | /// are identified by a key word 0xFC0000FC, 0xF000000F and 0xB000000B respectively. | |
88 | /// (fBusPatchManager no more needed !) | |
939ae4b2 | 89 | |
90 | ||
91 | //Read Header Size of DDL,Block,DSP and BusPatch | |
8ecc5cf0 | 92 | static Int_t kBlockHeaderSize = fBlockHeader->GetHeaderLength(); |
93 | static Int_t kDspHeaderSize = fDspHeader->GetHeaderLength(); | |
94 | static Int_t kBusPatchHeaderSize = fBusStruct->GetHeaderLength(); | |
939ae4b2 | 95 | |
84ceeb06 | 96 | // size structures |
939ae4b2 | 97 | Int_t totalBlockSize; |
98 | Int_t totalDspSize; | |
99 | Int_t totalBusPatchSize; | |
100 | Int_t dataSize; | |
84ceeb06 | 101 | Int_t bufSize; |
939ae4b2 | 102 | |
84ceeb06 | 103 | // indexes |
104 | Int_t indexBlk; | |
105 | Int_t indexDsp; | |
106 | Int_t indexBusPatch; | |
107 | Int_t index = 0; | |
108 | Int_t iBlock = 0; | |
939ae4b2 | 109 | |
84ceeb06 | 110 | // CROCUS CRT |
111 | while (buffer[index] == fBlockHeader->GetDefaultDataKey()) { | |
939ae4b2 | 112 | |
84ceeb06 | 113 | if (iBlock > fMaxBlock) break; |
114 | ||
115 | // copy within padding words | |
116 | memcpy(fBlockHeader->GetHeader(),&buffer[index], (kBlockHeaderSize)*4); | |
939ae4b2 | 117 | |
84ceeb06 | 118 | totalBlockSize = fBlockHeader->GetTotalLength(); |
939ae4b2 | 119 | |
84ceeb06 | 120 | indexBlk = index; |
121 | index += kBlockHeaderSize; | |
939ae4b2 | 122 | |
84ceeb06 | 123 | // copy in TClonesArray |
124 | fDDLTracker->AddBlkHeader(*fBlockHeader); | |
939ae4b2 | 125 | |
84ceeb06 | 126 | // Crocus FRT |
127 | Int_t iDsp = 0; | |
128 | while (buffer[index] == fDspHeader->GetDefaultDataKey()) { | |
939ae4b2 | 129 | |
84ceeb06 | 130 | if (iDsp > fMaxDsp) break; // if ever... |
131 | ||
132 | memcpy(fDspHeader->GetHeader(),&buffer[index], kDspHeaderSize*4); | |
939ae4b2 | 133 | |
84ceeb06 | 134 | totalDspSize = fDspHeader->GetTotalLength(); |
1ed3c5c2 | 135 | |
136 | if (fDspHeader->GetErrorWord()) { | |
3fe5a267 | 137 | // fDspHeader->Print(""); |
d806c948 | 138 | if ( fDspHeader->GetErrorWord() == (0x000000B1 | fBlockHeader->GetDspId()) |
139 | || fDspHeader->GetErrorWord() == (0x00000091 | fBlockHeader->GetDspId()) ){ | |
1ed3c5c2 | 140 | // an event with a glitch in the readout has been detected |
141 | // it means that somewhere a 1 byte word has been randomly inserted | |
142 | // all the readout sequence is shifted untill the next event | |
3fe5a267 | 143 | |
144 | Char_t* msg = Form("Glitch error detected in DSP %d, skipping event ", fBlockHeader->GetDspId()); | |
145 | ||
146 | if (fWarnings) AliWarning(msg); | |
147 | AddErrorMessage(msg); | |
1ed3c5c2 | 148 | fGlitchErrors++; |
149 | return kFALSE ; | |
150 | } | |
151 | } | |
152 | ||
84ceeb06 | 153 | indexDsp = index; |
154 | index += kDspHeaderSize; | |
939ae4b2 | 155 | |
84ceeb06 | 156 | // copy in TClonesArray |
157 | fDDLTracker->AddDspHeader(*fDspHeader, iBlock); | |
939ae4b2 | 158 | |
84ceeb06 | 159 | // buspatch structure |
160 | Int_t iBusPatch = 0; | |
161 | while (buffer[index] == fBusStruct->GetDefaultDataKey()) { | |
939ae4b2 | 162 | |
84ceeb06 | 163 | if (iBusPatch > fMaxBus) break; // if ever |
164 | ||
165 | //copy buffer into header structure | |
166 | memcpy(fBusStruct->GetHeader(), &buffer[index], kBusPatchHeaderSize*4); | |
939ae4b2 | 167 | |
84ceeb06 | 168 | totalBusPatchSize = fBusStruct->GetTotalLength(); |
169 | indexBusPatch = index; | |
939ae4b2 | 170 | |
84ceeb06 | 171 | //Check Buspatch header, not empty events |
172 | if(totalBusPatchSize > kBusPatchHeaderSize) { | |
173 | ||
174 | index += kBusPatchHeaderSize; | |
175 | dataSize = fBusStruct->GetLength(); | |
176 | bufSize = fBusStruct->GetBufSize(); | |
177 | ||
178 | if(dataSize > 0) { // check data present | |
179 | if (dataSize > bufSize) // check buffer size | |
180 | fBusStruct->SetAlloc(dataSize); | |
181 | ||
182 | //copy buffer into data structure | |
183 | memcpy(fBusStruct->GetData(), &buffer[index], dataSize*4); | |
184 | fBusStruct->SetBlockId(iBlock); // could be usefull in future applications ? | |
185 | fBusStruct->SetDspId(iDsp); | |
186 | ||
3fe5a267 | 187 | // check parity |
188 | if(!CheckDataParity()) { | |
189 | fParityErrors++; | |
190 | return kFALSE; | |
191 | } | |
fa1e0212 | 192 | |
6dee95a7 | 193 | |
84ceeb06 | 194 | // copy in TClonesArray |
195 | fDDLTracker->AddBusPatch(*fBusStruct, iBlock, iDsp); | |
196 | ||
197 | } // dataSize test | |
198 | ||
199 | } // testing buspatch | |
200 | ||
201 | index = indexBusPatch + totalBusPatchSize; | |
202 | if (index >= totalDDLSize) {// check the end of DDL | |
203 | index = totalDDLSize - 1; // point to the last element of buffer | |
204 | break; | |
205 | } | |
206 | iBusPatch++; | |
207 | } // buspatch loop | |
86400e61 | 208 | |
209 | // skipping additionnal word if padding | |
210 | if (fDspHeader->GetPaddingWord() == 1) { | |
3fe5a267 | 211 | if (buffer[index++] != fDspHeader->GetDefaultPaddingWord()) { |
212 | ||
213 | Char_t *msg = Form("Padding word error for iBlock %d, iDsp %d, iBus %d\n", | |
214 | iBlock, iDsp, iBusPatch); | |
215 | ||
216 | if (fWarnings) AliWarning(msg); | |
217 | AddErrorMessage(msg); | |
218 | fPaddingErrors++; | |
219 | } | |
86400e61 | 220 | } |
221 | ||
84ceeb06 | 222 | index = indexDsp + totalDspSize; |
223 | if (index >= totalDDLSize) { | |
224 | index = totalDDLSize - 1; | |
225 | break; | |
226 | } | |
227 | iDsp++; | |
228 | } // dsp loop | |
229 | ||
230 | index = indexBlk + totalBlockSize; | |
231 | if (index >= totalDDLSize) { | |
232 | index = totalDDLSize - 1; | |
233 | break; | |
234 | } | |
235 | iBlock++; | |
236 | } // block loop | |
939ae4b2 | 237 | |
238 | return kTRUE; | |
239 | } | |
240 | ||
241 | //______________________________________________________ | |
242 | void AliMUONPayloadTracker::ResetDDL() | |
243 | { | |
71a2d3aa | 244 | /// reseting TClonesArray |
245 | /// after each DDL | |
246 | /// | |
939ae4b2 | 247 | fDDLTracker->GetBlkHeaderArray()->Delete(); |
3fe5a267 | 248 | fGlitchErrors = 0; |
ea59383d | 249 | fPaddingErrors = 0; |
3fe5a267 | 250 | fParityErrors = 0; |
1ed3c5c2 | 251 | |
939ae4b2 | 252 | } |
253 | ||
254 | //______________________________________________________ | |
255 | void AliMUONPayloadTracker::SetMaxBlock(Int_t blk) | |
256 | { | |
71a2d3aa | 257 | /// set regional card number |
939ae4b2 | 258 | if (blk > 2) blk = 2; |
259 | fMaxBlock = blk; | |
260 | } | |
607fb67b | 261 | |
6dee95a7 | 262 | //______________________________________________________ |
607fb67b | 263 | Bool_t AliMUONPayloadTracker::CheckDataParity() |
264 | { | |
71a2d3aa | 265 | /// parity check |
266 | /// taken from MuTrkBusPatch.cxx (sotfware test for CROCUS) | |
267 | /// A. Baldisseri | |
607fb67b | 268 | |
6dee95a7 | 269 | Int_t parity; |
607fb67b | 270 | UInt_t data; |
271 | ||
272 | Int_t dataSize = fBusStruct->GetLength(); | |
273 | for (int idata = 0; idata < dataSize; idata++) { | |
274 | ||
275 | data = fBusStruct->GetData(idata); | |
607fb67b | 276 | |
6dee95a7 | 277 | // Compute the parity for each data word |
278 | parity = data & 0x1; | |
279 | for (Int_t i = 1; i <= 30; i++) | |
280 | parity ^= ((data >> i) & 0x1); | |
607fb67b | 281 | |
282 | // Check | |
283 | if (parity != fBusStruct->GetParity(idata)) { | |
1ed3c5c2 | 284 | |
3fe5a267 | 285 | Char_t* msg = Form("Parity error in word %d for manuId %d and channel %d in buspatch %d\n", |
286 | idata, fBusStruct->GetManuId(idata), fBusStruct->GetChannelId(idata), | |
287 | fBusStruct->GetBusPatchId()); | |
288 | ||
289 | if (fWarnings) AliWarning(msg); | |
290 | AddErrorMessage(msg); | |
291 | fParityErrors++; | |
292 | ||
607fb67b | 293 | return kFALSE; |
294 | ||
295 | } | |
296 | } | |
297 | return kTRUE; | |
298 | } | |
1ed3c5c2 | 299 | |
300 | //______________________________________________________ | |
3fe5a267 | 301 | void AliMUONPayloadTracker::AddErrorMessage(const Char_t* msg) |
1ed3c5c2 | 302 | { |
3fe5a267 | 303 | /// adding message to logger |
304 | ||
305 | TString tmp(msg); | |
306 | ||
307 | Int_t pos = tmp.First("\n"); | |
308 | tmp[pos] = 0; | |
309 | ||
310 | fLog->Log(tmp.Data()); | |
1ed3c5c2 | 311 | } |
3fe5a267 | 312 | |
313 |