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3ea47630 | 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 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | /// | |
20 | /// This class provides access to Altro digits in raw data. | |
21 | /// | |
22 | /// It loops over all Altro digits in the raw data given by the AliRawReader. | |
23 | /// The Next method goes to the next digit. If there are no digits left | |
24 | /// it returns kFALSE. | |
25 | /// Several getters provide information about the current digit. | |
26 | /// | |
27 | /////////////////////////////////////////////////////////////////////////////// | |
28 | ||
29 | #include "AliAltroRawStream.h" | |
30 | #include "AliRawReader.h" | |
3a291af4 | 31 | #include "AliLog.h" |
3ea47630 | 32 | |
33 | ClassImp(AliAltroRawStream) | |
34 | ||
35 | ||
36 | //_____________________________________________________________________________ | |
37 | AliAltroRawStream::AliAltroRawStream(AliRawReader* rawReader) : | |
e7fd2555 | 38 | fNoAltroMapping(kTRUE), |
1e984421 | 39 | fIsShortDataHeader(kFALSE), |
e7fd2555 | 40 | fDDLNumber(-1), |
41 | fPrevDDLNumber(-1), | |
5e6235b5 | 42 | fRCUId(-1), |
43 | fPrevRCUId(-1), | |
3a291af4 | 44 | fHWAddress(-1), |
45 | fPrevHWAddress(-1), | |
3ea47630 | 46 | fTime(-1), |
e7fd2555 | 47 | fPrevTime(-1), |
3ea47630 | 48 | fSignal(-1), |
e7fd2555 | 49 | fTimeBunch(-1), |
3ea47630 | 50 | fRawReader(rawReader), |
51 | fData(NULL), | |
52 | fPosition(0), | |
53 | fCount(0), | |
5e6235b5 | 54 | fBunchLength(0), |
55 | fRCUTrailerData(NULL), | |
31be3849 | 56 | fRCUTrailerSize(0), |
57 | fFECERRA(0), | |
58 | fFECERRB(0), | |
59 | fERRREG2(0), | |
7473795a | 60 | fERRREG3(0), |
61 | fERRREG4(0), | |
31be3849 | 62 | fActiveFECsA(0), |
63 | fActiveFECsB(0), | |
64 | fAltroCFG1(0), | |
65 | fAltroCFG2(0) | |
3ea47630 | 66 | { |
67 | // create an object to read Altro raw digits | |
e7fd2555 | 68 | fSegmentation[0] = fSegmentation[1] = fSegmentation[2] = -1; |
3ea47630 | 69 | } |
70 | ||
71 | //_____________________________________________________________________________ | |
72 | AliAltroRawStream::AliAltroRawStream(const AliAltroRawStream& stream) : | |
73 | TObject(stream), | |
e7bee78b | 74 | fNoAltroMapping(stream.fNoAltroMapping), |
e7bee78b | 75 | fIsShortDataHeader(stream.fIsShortDataHeader), |
76 | fDDLNumber(stream.fDDLNumber), | |
77 | fPrevDDLNumber(stream.fPrevDDLNumber), | |
78 | fRCUId(stream.fRCUId), | |
79 | fPrevRCUId(stream.fPrevRCUId), | |
80 | fHWAddress(stream.fHWAddress), | |
81 | fPrevHWAddress(stream.fPrevHWAddress), | |
82 | fTime(stream.fTime), | |
83 | fPrevTime(stream.fPrevTime), | |
84 | fSignal(stream.fSignal), | |
85 | fTimeBunch(stream.fTimeBunch), | |
86 | fRawReader(stream.fRawReader), | |
87 | fData(stream.fData), | |
88 | fPosition(stream.fPosition), | |
89 | fCount(stream.fCount), | |
90 | fBunchLength(stream.fBunchLength), | |
91 | fRCUTrailerData(stream.fRCUTrailerData), | |
31be3849 | 92 | fRCUTrailerSize(stream.fRCUTrailerSize), |
93 | fFECERRA(stream.fFECERRA), | |
94 | fFECERRB(stream.fFECERRB), | |
95 | fERRREG2(stream.fERRREG2), | |
7473795a | 96 | fERRREG3(stream.fERRREG3), |
97 | fERRREG4(stream.fERRREG4), | |
31be3849 | 98 | fActiveFECsA(stream.fActiveFECsA), |
99 | fActiveFECsB(stream.fActiveFECsB), | |
100 | fAltroCFG1(stream.fAltroCFG1), | |
101 | fAltroCFG2(stream.fAltroCFG2) | |
3ea47630 | 102 | { |
e7bee78b | 103 | fSegmentation[0] = stream.fSegmentation[0]; |
104 | fSegmentation[1] = stream.fSegmentation[1]; | |
105 | fSegmentation[2] = stream.fSegmentation[2]; | |
3ea47630 | 106 | } |
107 | ||
108 | //_____________________________________________________________________________ | |
3820a703 | 109 | AliAltroRawStream& AliAltroRawStream::operator = (const AliAltroRawStream& stream) |
3ea47630 | 110 | { |
3820a703 | 111 | if(&stream == this) return *this; |
112 | ||
113 | fNoAltroMapping = stream.fNoAltroMapping; | |
3820a703 | 114 | fIsShortDataHeader = stream.fIsShortDataHeader; |
115 | fDDLNumber = stream.fDDLNumber; | |
116 | fPrevDDLNumber = stream.fPrevDDLNumber; | |
117 | fRCUId = stream.fRCUId; | |
118 | fPrevRCUId = stream.fPrevRCUId; | |
119 | fHWAddress = stream.fHWAddress; | |
120 | fPrevHWAddress = stream.fPrevHWAddress; | |
121 | fTime = stream.fTime; | |
122 | fPrevTime = stream.fPrevTime; | |
123 | fSignal = stream.fSignal; | |
124 | fTimeBunch = stream.fTimeBunch; | |
125 | fRawReader = stream.fRawReader; | |
126 | fData = stream.fData; | |
127 | fPosition = stream.fPosition; | |
128 | fCount = stream.fCount; | |
129 | fBunchLength = stream.fBunchLength; | |
130 | fRCUTrailerData = stream.fRCUTrailerData; | |
131 | fRCUTrailerSize = stream.fRCUTrailerSize; | |
31be3849 | 132 | fFECERRA = stream.fFECERRA; |
133 | fFECERRB = stream.fFECERRB; | |
134 | fERRREG2 = stream.fERRREG2; | |
7473795a | 135 | fERRREG3 = stream.fERRREG3; |
136 | fERRREG4 = stream.fERRREG4; | |
31be3849 | 137 | fActiveFECsA = stream.fActiveFECsA; |
138 | fActiveFECsB = stream.fActiveFECsB; | |
139 | fAltroCFG1 = stream.fAltroCFG1; | |
140 | fAltroCFG2 = stream.fAltroCFG2; | |
3820a703 | 141 | |
142 | fSegmentation[0] = stream.fSegmentation[0]; | |
143 | fSegmentation[1] = stream.fSegmentation[1]; | |
144 | fSegmentation[2] = stream.fSegmentation[2]; | |
145 | ||
3ea47630 | 146 | return *this; |
147 | } | |
148 | ||
149 | //_____________________________________________________________________________ | |
150 | AliAltroRawStream::~AliAltroRawStream() | |
151 | { | |
152 | // clean up | |
153 | ||
154 | } | |
155 | ||
3a291af4 | 156 | //_____________________________________________________________________________ |
157 | void AliAltroRawStream::Reset() | |
158 | { | |
159 | // reset altro raw stream params | |
160 | ||
161 | fPosition = fCount = fBunchLength = 0; | |
162 | ||
5e6235b5 | 163 | fRCUTrailerData = NULL; |
164 | fRCUTrailerSize = 0; | |
165 | ||
7473795a | 166 | fFECERRA = fFECERRB = fERRREG2 = fERRREG3 = fERRREG4 = fActiveFECsA = fActiveFECsB = fAltroCFG1 = fAltroCFG2 = 0; |
31be3849 | 167 | |
5e6235b5 | 168 | fDDLNumber = fPrevDDLNumber = fRCUId = fPrevRCUId = fHWAddress = fPrevHWAddress = fTime = fPrevTime = fSignal = fTimeBunch = -1; |
3a291af4 | 169 | |
170 | if (fRawReader) fRawReader->Reset(); | |
e7fd2555 | 171 | |
172 | fSegmentation[0] = fSegmentation[1] = fSegmentation[2] = -1; | |
3a291af4 | 173 | } |
3ea47630 | 174 | |
175 | //_____________________________________________________________________________ | |
176 | Bool_t AliAltroRawStream::Next() | |
177 | { | |
178 | // read the next raw digit | |
179 | // returns kFALSE if there is no digit left | |
180 | ||
e7fd2555 | 181 | fPrevDDLNumber = fDDLNumber; |
5e6235b5 | 182 | fPrevRCUId = fRCUId; |
3a291af4 | 183 | fPrevHWAddress = fHWAddress; |
e7fd2555 | 184 | fPrevTime = fTime; |
3ea47630 | 185 | |
186 | while (fCount == 0) { // next trailer | |
7473795a | 187 | while (fPosition <= 0) { // next payload |
3ea47630 | 188 | do { |
189 | if (!fRawReader->ReadNextData(fData)) return kFALSE; | |
190 | } while (fRawReader->GetDataSize() == 0); | |
191 | ||
e7fd2555 | 192 | fDDLNumber = fRawReader->GetDDLID(); |
193 | ||
3a291af4 | 194 | fPosition = GetPosition(); |
3ea47630 | 195 | } |
3ea47630 | 196 | |
eb09ec9a | 197 | ReadTrailer(); |
3ea47630 | 198 | |
3a291af4 | 199 | fBunchLength = 0; |
3ea47630 | 200 | } |
201 | ||
3a291af4 | 202 | if (fBunchLength == 0) ReadBunch(); |
203 | else fTime--; | |
204 | ||
205 | ReadAmplitude(); | |
3ea47630 | 206 | |
207 | return kTRUE; | |
208 | } | |
209 | ||
e7fd2555 | 210 | //_____________________________________________________________________________ |
211 | void AliAltroRawStream::SelectRawData(Int_t detId) | |
212 | { | |
213 | // Select the raw data for specific | |
214 | // detector id | |
215 | AliDebug(1,Form("Selecting raw data for detector %d",detId)); | |
216 | fRawReader->Select(detId); | |
217 | } | |
218 | ||
362c9d61 | 219 | //_____________________________________________________________________________ |
220 | void AliAltroRawStream::SelectRawData(const char *detName) | |
221 | { | |
222 | // Select the raw data for specific | |
223 | // detector name | |
224 | AliDebug(1,Form("Selecting raw data for detector %s",detName)); | |
225 | fRawReader->Select(detName); | |
226 | } | |
227 | ||
3ea47630 | 228 | //_____________________________________________________________________________ |
3a291af4 | 229 | UShort_t AliAltroRawStream::GetNextWord() |
3ea47630 | 230 | { |
3a291af4 | 231 | // Read the next 10 bit word in backward direction |
232 | // The input stream access is given by fData and fPosition | |
3ea47630 | 233 | |
3a291af4 | 234 | fPosition--; |
235 | ||
236 | Int_t iBit = fPosition * 10; | |
3ea47630 | 237 | Int_t iByte = iBit / 8; |
238 | Int_t shift = iBit % 8; | |
3ea47630 | 239 | |
5e6235b5 | 240 | // the raw data is written as integers where the low bits are filled first |
3ea47630 | 241 | // -> little endian is assumed here ! |
5e6235b5 | 242 | Int_t iByteLow = iByte; |
3ea47630 | 243 | iByte++; |
5e6235b5 | 244 | Int_t iByteHigh = iByte; |
3a291af4 | 245 | return ((fData[iByteHigh] * 256 + fData[iByteLow]) >> shift) & 0x03FF; |
246 | } | |
247 | ||
248 | //_____________________________________________________________________________ | |
249 | Bool_t AliAltroRawStream::ReadTrailer() | |
250 | { | |
251 | //Read a trailer of 40 bits in the backward reading mode | |
252 | //In case of no mapping is provided, read a dummy trailer | |
253 | if (fNoAltroMapping) { | |
254 | AliError("No ALTRO mapping information is loaded! Reading a dummy trailer!"); | |
255 | return ReadDummyTrailer(); | |
256 | } | |
257 | ||
258 | //First reading filling words | |
259 | UShort_t temp; | |
260 | Int_t nFillWords = 0; | |
261 | while ((temp = GetNextWord()) == 0x2AA) nFillWords++; | |
776c3b9c | 262 | if (nFillWords == 0) { |
eb09ec9a | 263 | fRawReader->AddMajorErrorLog(kAltroTrailerErr,"no 0x2AA"); |
264 | // PrintDebug(); | |
7473795a | 265 | AliWarning(Form("Incorrect trailer found ! Expected 0x2AA not found (0x%x != 0x2AA) ! Current position %d, DDL=%d", |
266 | temp,fPosition,fDDLNumber)); | |
eb09ec9a | 267 | // trying to recover and find the next bunch |
7473795a | 268 | while ((fPosition > 2) && (temp != 0x2AA)) temp = GetNextWord(); |
eb09ec9a | 269 | if (temp != 0x2AA) { |
270 | fCount = fPosition = 0; | |
271 | return kFALSE; | |
272 | } | |
273 | temp = GetNextWord(); | |
776c3b9c | 274 | } |
3a291af4 | 275 | |
276 | //Then read the trailer | |
7473795a | 277 | if (fPosition < 2) { |
eb09ec9a | 278 | fRawReader->AddMajorErrorLog(kAltroTrailerErr,Form("size %d < 5", |
7473795a | 279 | fPosition)); |
eb09ec9a | 280 | // PrintDebug(); |
281 | AliWarning(Form("Incorrect raw data size ! Expected at least 5 words but found %d !",fPosition)); | |
282 | fCount = fPosition = 0; | |
283 | return kFALSE; | |
776c3b9c | 284 | } |
3a291af4 | 285 | |
286 | fCount = (temp << 4) & 0x3FF; | |
776c3b9c | 287 | if ((temp >> 6) != 0xA) { |
eb09ec9a | 288 | fRawReader->AddMajorErrorLog(kAltroTrailerErr,"no 0xA"); |
289 | // PrintDebug(); | |
290 | AliWarning(Form("Incorrect trailer found ! Expecting 0xA but found 0x%x !",temp >> 6)); | |
291 | fCount = 0; | |
292 | return kFALSE; | |
776c3b9c | 293 | } |
3a291af4 | 294 | |
295 | temp = GetNextWord(); | |
296 | fHWAddress = (temp & 0x3) << 10; | |
776c3b9c | 297 | if (((temp >> 2) & 0xF) != 0xA) { |
eb09ec9a | 298 | fRawReader->AddMajorErrorLog(kAltroTrailerErr,"no second 0xA"); |
299 | // PrintDebug(); | |
300 | AliWarning(Form("Incorrect trailer found ! Expecting second 0xA but found 0x%x !",(temp >> 2) & 0xF)); | |
301 | fCount = 0; | |
302 | return kFALSE; | |
776c3b9c | 303 | } |
3a291af4 | 304 | fCount |= ((temp & 0x3FF) >> 6); |
7473795a | 305 | |
71c94b28 | 306 | if (fCount >= fPosition) { |
307 | fRawReader->AddMajorErrorLog(kAltroTrailerErr,"invalid size"); | |
308 | // PrintDebug(); | |
309 | AliWarning(Form("Incorrect trailer found ! The altro payload size is invalid (%d >= %d) !",fCount,fPosition)); | |
310 | fCount = 0; | |
311 | return kFALSE; | |
312 | } | |
3a291af4 | 313 | temp = GetNextWord(); |
314 | fHWAddress |= temp; | |
315 | ||
316 | fPosition -= (4 - (fCount % 4)) % 4; // skip fill words | |
317 | ||
3a291af4 | 318 | return kTRUE; |
319 | } | |
320 | ||
321 | //_____________________________________________________________________________ | |
322 | Bool_t AliAltroRawStream::ReadDummyTrailer() | |
323 | { | |
324 | //Read a trailer of 40 bits in the backward reading mode | |
325 | //In case of no mapping is provided, read a dummy trailer | |
326 | UShort_t temp; | |
327 | while ((temp = GetNextWord()) == 0x2AA); | |
328 | ||
e7fd2555 | 329 | fSegmentation[0] = temp; |
330 | fSegmentation[1] = GetNextWord(); | |
331 | fSegmentation[2] = GetNextWord(); | |
3a291af4 | 332 | fCount = GetNextWord(); |
333 | if (fCount == 0) return kFALSE; | |
334 | fHWAddress = -1; | |
335 | ||
e7fd2555 | 336 | fPosition -= (4 - (fCount % 4)) % 4; // skip fill words |
337 | ||
3a291af4 | 338 | return kTRUE; |
339 | } | |
340 | ||
341 | //_____________________________________________________________________________ | |
342 | void AliAltroRawStream::ReadBunch() | |
343 | { | |
344 | // Read altro payload in | |
345 | // backward direction | |
71c94b28 | 346 | if (fCount <= 2) { |
eb09ec9a | 347 | fRawReader->AddMinorErrorLog(kBunchLengthReadErr,""); |
348 | // PrintDebug(); | |
71c94b28 | 349 | AliWarning(Form("Could not read bunch length and time bin ! Only %d 10-bit words are left !",fCount)); |
350 | fBunchLength = fTimeBunch = fCount = 0; | |
351 | return; | |
776c3b9c | 352 | } |
3a291af4 | 353 | |
354 | fBunchLength = GetNextWord() - 2; | |
71c94b28 | 355 | if (fBunchLength > fCount) { |
356 | fRawReader->AddMinorErrorLog(kBunchLengthReadErr,Form("bl=%d",fBunchLength)); | |
eb09ec9a | 357 | // PrintDebug(); |
71c94b28 | 358 | AliWarning(Form("Could not read bunch length ! Bunch length = %d (>%d)",fBunchLength,fCount)); |
359 | fBunchLength = fTimeBunch = fCount = 0; | |
360 | return; | |
776c3b9c | 361 | } |
71c94b28 | 362 | fTimeBunch = fBunchLength; |
363 | fCount--; | |
3a291af4 | 364 | |
365 | fTime = GetNextWord(); | |
366 | fCount--; | |
367 | ||
368 | return; | |
369 | } | |
370 | ||
371 | //_____________________________________________________________________________ | |
372 | void AliAltroRawStream::ReadAmplitude() | |
373 | { | |
374 | // Read next time bin amplitude | |
71c94b28 | 375 | if (fCount <= 0) { |
eb09ec9a | 376 | fRawReader->AddMinorErrorLog(kAmplitudeReadErr,""); |
377 | // PrintDebug(); | |
378 | AliWarning("Could not read sample amplitude !"); | |
71c94b28 | 379 | fCount = fSignal = fBunchLength = 0; |
380 | return; | |
776c3b9c | 381 | } |
3a291af4 | 382 | |
383 | fSignal = GetNextWord(); | |
71c94b28 | 384 | |
3a291af4 | 385 | fCount--; |
386 | fBunchLength--; | |
387 | ||
388 | return; | |
389 | } | |
390 | ||
391 | //_____________________________________________________________________________ | |
392 | Int_t AliAltroRawStream::GetPosition() | |
393 | { | |
394 | // Sets the position in the | |
395 | // input stream | |
5e6235b5 | 396 | // Read the RCU trailer |
397 | // This includes the trailer size, | |
398 | // RCU identifier and raw data payload. | |
399 | // The RCU trailer format is described | |
400 | // in details in the RCU manual. | |
401 | ||
9a090ccd | 402 | // We use the last word of the payload |
403 | // in order to decide which RCU firmware | |
404 | // was used during the data taking. | |
405 | // The firmware v2 adds 0xAAAA as 16 | |
406 | // most significant bits and since the | |
407 | // payload size (firmware v1) can not be | |
408 | // that big, we use this as a unique | |
409 | // label of the firmware version. | |
410 | ||
411 | Int_t index = fRawReader->GetDataSize(); | |
412 | UInt_t word = Get32bitWord(index); | |
413 | if (((word >> 16) == 0xaaaa) || (word == 2)) { | |
414 | // This is RCU formware v2 | |
415 | // The statement word==2 is needed only temporary | |
416 | // in order to be able to read previously generated | |
417 | // aliroot raw data | |
418 | ||
419 | Int_t trailerSize = 0; | |
420 | if (word == 2) { | |
421 | AliInfo("Old simulated raw data is assumed!"); | |
422 | trailerSize = 2; | |
423 | fRCUId = 0; | |
424 | } | |
425 | else { | |
426 | // First read 32-bit word with the | |
427 | // trailer size (7 bits), RCU ID (9 bits) and | |
428 | // 0xAAA (the rest - 16 bits) | |
429 | fRCUId = (Int_t)((word >> 7) & 0x1ff); | |
430 | trailerSize = (word & 0x7F); | |
431 | } | |
7e18047e | 432 | |
433 | // Now read the beginning of the trailer | |
434 | // where the payload size is written | |
776c3b9c | 435 | if (trailerSize < 2) { |
7dcdcfe4 | 436 | fRawReader->AddMajorErrorLog(kRCUTrailerErr,Form("tr=%d bytes", |
437 | trailerSize*4)); | |
438 | AliWarning(Form("Invalid trailer size found (%d bytes) !", | |
439 | trailerSize*4)); | |
776c3b9c | 440 | } |
31be3849 | 441 | |
442 | Int_t position = ReadRCUTrailer(index,trailerSize); | |
7e18047e | 443 | // The size is specified in a number of 40bits |
444 | // Therefore we need to transform it to number of bytes | |
445 | position *= 5; | |
446 | ||
447 | // Check the consistency of the header and trailer | |
7dcdcfe4 | 448 | if (((fRawReader->GetDataSize() - trailerSize*4) < position) || |
449 | ((fRawReader->GetDataSize() - trailerSize*4) >= (position + 4))) { | |
450 | fRawReader->AddMajorErrorLog(kRCUTrailerSizeErr,Form("h=%d tr=%d rcu=%d bytes", | |
451 | fRawReader->GetDataSize(), | |
452 | trailerSize*4, | |
453 | position)); | |
454 | AliWarning(Form("Inconsistent raw data size ! Raw data size - %d bytes (from the header), RCU trailer - %d bytes, raw data paylod - %d bytes !", | |
7e18047e | 455 | fRawReader->GetDataSize(), |
456 | trailerSize*4, | |
457 | position)); | |
7dcdcfe4 | 458 | position = fRawReader->GetDataSize() - trailerSize*4; |
776c3b9c | 459 | } |
7e18047e | 460 | |
461 | return position * 8 / 10; | |
462 | } | |
463 | else { | |
464 | // In case of the Old RCU trailer format | |
465 | // we have to read just the size of altro payload | |
466 | // in units of 40-bit words | |
9a090ccd | 467 | Int_t position = (Int_t)word; |
7e18047e | 468 | |
469 | fRCUId = -1; | |
470 | fRCUTrailerSize = 0; | |
471 | fRCUTrailerData = NULL; | |
472 | ||
473 | // The size is specified in a number of 40bits | |
474 | // Therefore we need to transform it to number of bytes | |
475 | position *= 5; | |
476 | ||
1e984421 | 477 | if (!fIsShortDataHeader) { |
7e18047e | 478 | |
1e984421 | 479 | // Check the consistency of the header and trailer |
7dcdcfe4 | 480 | if (((fRawReader->GetDataSize() - 4) < position) || |
481 | ((fRawReader->GetDataSize() - 4) >= (position + 4))) { | |
eb09ec9a | 482 | fRawReader->AddMajorErrorLog(kRCUTrailerSizeErr,Form("h=%d rcu=%d bytes", |
483 | fRawReader->GetDataSize()-4, | |
484 | position)); | |
485 | // PrintDebug(); | |
486 | AliWarning(Form("Inconsistent raw data size ! Expected %d bytes (from the header), found %d bytes (in the RCU trailer)!", | |
487 | fRawReader->GetDataSize()-4, | |
488 | position)); | |
489 | position = fRawReader->GetDataSize()-4; | |
776c3b9c | 490 | } |
1e984421 | 491 | } |
492 | else { | |
493 | // Check the consistency of the header and trailer | |
494 | // In this case the header is shorter by 4 bytes | |
7dcdcfe4 | 495 | if ((fRawReader->GetDataSize() < position) || |
496 | (fRawReader->GetDataSize() >= (position + 4))) { | |
eb09ec9a | 497 | fRawReader->AddMajorErrorLog(kRCUTrailerSizeErr,Form("h=%d rcu=%d bytes", |
498 | fRawReader->GetDataSize(), | |
499 | position)); | |
500 | // PrintDebug(); | |
501 | AliWarning(Form("Inconsistent raw data size ! Expected %d bytes (from the header), found %d bytes (in the RCU trailer)!", | |
502 | fRawReader->GetDataSize(), | |
503 | position)); | |
504 | position = fRawReader->GetDataSize(); | |
776c3b9c | 505 | } |
1e984421 | 506 | |
507 | // 7 32-bit words Common Data Header | |
508 | // therefore we have to shift back by 4 bytes | |
509 | // the pointer to the raw data payload | |
510 | fData -= 4; | |
511 | } | |
512 | ||
7e18047e | 513 | // Return the position in units of 10-bit words |
514 | return position*8/10; | |
515 | } | |
5e6235b5 | 516 | } |
517 | ||
518 | //_____________________________________________________________________________ | |
519 | UInt_t AliAltroRawStream::Get32bitWord(Int_t &index) | |
520 | { | |
521 | // This method returns the 32 bit word at a given | |
522 | // position inside the raw data payload. | |
523 | // The 'index' points to the beginning of the next word. | |
524 | // The method is supposed to be endian (platform) | |
525 | // independent. | |
776c3b9c | 526 | if (!fData) { |
527 | PrintDebug(); | |
5e6235b5 | 528 | AliFatal("Raw data paylod buffer is not yet initialized !"); |
776c3b9c | 529 | } |
530 | ||
531 | if (index < 4) { | |
eb09ec9a | 532 | fRawReader->AddFatalErrorLog(k32bitWordReadErr,Form("pos = %d",index)); |
533 | // PrintDebug(); | |
534 | AliWarning(Form("Invalid raw data payload position (%d) !",index)); | |
776c3b9c | 535 | } |
5e6235b5 | 536 | |
537 | UInt_t word = 0; | |
538 | word = fData[--index] << 24; | |
539 | word |= fData[--index] << 16; | |
540 | word |= fData[--index] << 8; | |
541 | word |= fData[--index]; | |
542 | ||
543 | return word; | |
544 | } | |
545 | ||
31be3849 | 546 | //_____________________________________________________________________________ |
547 | Int_t AliAltroRawStream::ReadRCUTrailer(Int_t &index, Int_t trailerSize) | |
548 | { | |
549 | // The method decodes the RCU trailer data | |
550 | // according to the RCU fw ver.2 specs | |
551 | ||
552 | fRCUTrailerSize = trailerSize*4; | |
553 | ||
554 | for (trailerSize -= 2; trailerSize > 0; trailerSize--) { | |
555 | Int_t word = Get32bitWord(index); | |
556 | Int_t parCode = word >> 26; | |
557 | Int_t parData = word & 0x3FFFFFF; | |
558 | switch (parCode) { | |
559 | case 1: | |
560 | // ERR_REG1 | |
561 | fFECERRA = ((parData >> 13) & 0x1FFF) << 7; | |
562 | fFECERRB = ((parData & 0x1FFF)) << 7; | |
563 | break; | |
564 | case 2: | |
565 | // ERR_REG2 | |
566 | fERRREG2 = parData & 0x1FF; | |
567 | break; | |
568 | case 3: | |
569 | // ERR_REG3 | |
7473795a | 570 | fERRREG3 = parData & 0xFFF; |
31be3849 | 571 | break; |
572 | case 4: | |
573 | // ERR_REG4 | |
7473795a | 574 | fERRREG4 = parData & 0xFFF; |
31be3849 | 575 | break; |
576 | case 5: | |
577 | // FEC_RO_A | |
578 | fActiveFECsA = parData & 0xFFFF; | |
579 | break; | |
580 | case 6: | |
581 | // FEC_RO_B | |
582 | fActiveFECsB = parData & 0xFFFF; | |
583 | break; | |
584 | case 7: | |
585 | // RDO_CFG1 | |
586 | fAltroCFG1 = parData & 0x7FFFF; | |
587 | break; | |
588 | case 8: | |
589 | // RDO_CFG2 | |
590 | fAltroCFG2 = parData & 0x1FFFFFF; | |
591 | break; | |
592 | default: | |
593 | fRawReader->AddMinorErrorLog(kRCUTrailerErr,"undef word"); | |
594 | AliWarning(Form("Undefined parameter code %d, ignore it !", | |
595 | parCode)); | |
596 | break; | |
597 | } | |
598 | } | |
599 | ||
600 | if (index < 4) { | |
601 | fRawReader->AddMajorErrorLog(kRCUTrailerErr,Form("tr=%d raw=%d bytes", | |
602 | trailerSize*4, | |
603 | fRawReader->GetDataSize())); | |
604 | AliWarning(Form("Invalid trailer size found (%d bytes) ! The size is bigger than the raw data size (%d bytes)!", | |
605 | trailerSize*4, | |
606 | fRawReader->GetDataSize())); | |
607 | } | |
608 | fRCUTrailerSize = trailerSize*4; | |
609 | fRCUTrailerData = fData + index; | |
610 | ||
611 | Int_t position = Get32bitWord(index); | |
612 | ||
613 | ||
614 | return position; | |
615 | } | |
616 | ||
f683d15c | 617 | //_____________________________________________________________________________ |
618 | Double_t AliAltroRawStream::GetTSample() const | |
619 | { | |
620 | // Returns the sampling time | |
621 | // in seconds. In case the rcu trailer | |
622 | // was note read, return an invalid number (0) | |
623 | ||
624 | if (!fRCUTrailerData) return 0.; | |
625 | ||
626 | const Double_t kLHCTimeSample = 25.0e-9; // LHC clocks runs at 40 MHz | |
627 | UChar_t fq = (fAltroCFG2 >> 5) & 0xF; | |
628 | Double_t tSample; | |
629 | switch (fq) { | |
630 | case 0: | |
631 | // 20 MHz | |
632 | tSample = 2.0*kLHCTimeSample; | |
633 | break; | |
634 | case 1: | |
635 | // 10 Mhz | |
636 | tSample = 4.0*kLHCTimeSample; | |
637 | break; | |
638 | case 2: | |
639 | // 5 MHz | |
640 | tSample = 8.0*kLHCTimeSample; | |
641 | break; | |
642 | default: | |
643 | AliWarning(Form("Invalid sampling frequency value %d !", | |
644 | fq)); | |
645 | tSample = 0.; | |
646 | break; | |
647 | } | |
648 | ||
649 | return tSample; | |
650 | } | |
651 | ||
652 | //_____________________________________________________________________________ | |
653 | Double_t AliAltroRawStream::GetL1Phase() const | |
654 | { | |
655 | // Returns the L1 phase w.r.t to the | |
656 | // LHC clock | |
657 | if (!fRCUTrailerData) return 0.; | |
658 | ||
659 | const Double_t kLHCTimeSample = 25.0e-9; // LHC clocks runs at 40 MHz | |
660 | Double_t phase = ((Double_t)(fAltroCFG2 & 0x1F))*kLHCTimeSample; | |
661 | ||
662 | Double_t tSample = GetTSample(); | |
663 | if (phase >= tSample) { | |
664 | AliWarning(Form("Invalid L1 trigger phase (%f >= %d) !", | |
665 | phase,tSample)); | |
666 | phase = 0.; | |
667 | } | |
668 | ||
669 | return phase; | |
670 | } | |
671 | ||
31be3849 | 672 | //_____________________________________________________________________________ |
673 | void AliAltroRawStream::PrintRCUTrailer() const | |
674 | { | |
675 | // Prints the contents of | |
676 | // the RCU trailer data | |
677 | printf("RCU trailer:\n===========\n"); | |
678 | printf("FECERRA: 0x%x\nFECERRB: 0x%x\n",fFECERRA,fFECERRB); | |
679 | printf("ERRREG2: 0x%x\n",fERRREG2); | |
7473795a | 680 | printf("#channels skipped due to address mismatch: %d\n",GetNChAddrMismatch()); |
681 | printf("#channels skipped due to bad block length: %d\n",GetNChLengthMismatch()); | |
31be3849 | 682 | printf("Active FECs (branch A): 0x%x\nActive FECs (branch B): 0x%x\n",fActiveFECsA,fActiveFECsB); |
683 | printf("Baseline corr: 0x%x\n",GetBaselineCorr()); | |
684 | printf("Number of presamples: %d\nNumber of postsamples: %d\n",GetNPresamples(),GetNPostsamples()); | |
685 | printf("Second baseline corr: %d\n",GetSecondBaselineCorr()); | |
686 | printf("GlitchFilter: %d\n",GetGlitchFilter()); | |
687 | printf("Number of non-ZS postsamples: %d\nNumber of non-ZS presamples: %d\n",GetNNonZSPostsamples(),GetNNonZSPresamples()); | |
688 | printf("Number of ALTRO buffers: %d\n",GetNAltroBuffers()); | |
689 | printf("Number of pretrigger samples: %d\n",GetNPretriggerSamples()); | |
690 | printf("Number of samples per channel: %d\n",GetNSamplesPerCh()); | |
691 | printf("Sparse readout: %d\n",GetSparseRO()); | |
7473795a | 692 | printf("Sampling time: %e s\n",GetTSample()); |
693 | printf("L1 Phase: %e s\n",GetL1Phase()); | |
694 | printf("AltroCFG1: 0x%x\nAltroCFG2: 0x%x\n",GetAltroCFG1(),GetAltroCFG2()); | |
31be3849 | 695 | printf("===========\n"); |
696 | } | |
697 | ||
5e6235b5 | 698 | //_____________________________________________________________________________ |
699 | Bool_t AliAltroRawStream::GetRCUTrailerData(UChar_t*& data) const | |
700 | { | |
701 | // Return a pointer to the RCU trailer | |
702 | // data. Should be called always after | |
703 | // the RCU trailer was already processed | |
704 | // in the GetPosition() method | |
705 | if (!fRCUTrailerSize || !fRCUTrailerData) { | |
706 | AliError("No valid RCU trailer data is found !"); | |
707 | data = NULL; | |
708 | return kFALSE; | |
709 | } | |
710 | ||
711 | data = fRCUTrailerData; | |
712 | ||
713 | return kTRUE; | |
3ea47630 | 714 | } |
776c3b9c | 715 | |
716 | //_____________________________________________________________________________ | |
717 | void AliAltroRawStream::PrintDebug() const | |
718 | { | |
719 | // The method prints all the available | |
720 | // debug information. | |
721 | // Its is used in case of decoding errors. | |
722 | ||
723 | AliError("Start of debug printout\n--------------------"); | |
724 | ||
725 | Dump(); | |
726 | if (fRawReader) fRawReader->Dump(); | |
727 | ||
728 | AliError("End of debug printout\n--------------------"); | |
729 | } | |
e68dc1cf | 730 | |
731 | //_____________________________________________________________________________ | |
732 | Int_t AliAltroRawStream::GetBranch() const | |
733 | { | |
734 | // The method provides the RCU branch index (0 or 1) | |
735 | // for the current hardware address. | |
736 | // In case the hardware address has not been yet | |
737 | // initialized, the method returns -1 | |
738 | if (fHWAddress == -1) return -1; | |
739 | ||
740 | return ((fHWAddress >> 11) & 0x1); | |
741 | } | |
742 | ||
743 | //_____________________________________________________________________________ | |
744 | Int_t AliAltroRawStream::GetFEC() const | |
745 | { | |
746 | // The method provides the front-end card index | |
747 | // for the current hardware address. | |
748 | // In case the hardware address has not been yet | |
749 | // initialized, the method returns -1 | |
750 | if (fHWAddress == -1) return -1; | |
751 | ||
752 | return ((fHWAddress >> 7) & 0xF); | |
753 | } | |
754 | ||
755 | //_____________________________________________________________________________ | |
756 | Int_t AliAltroRawStream::GetAltro() const | |
757 | { | |
758 | // The method provides the altro chip index | |
759 | // for the current hardware address. | |
760 | // In case the hardware address has not been yet | |
761 | // initialized, the method returns -1 | |
762 | if (fHWAddress == -1) return -1; | |
763 | ||
764 | return ((fHWAddress >> 4) & 0x7); | |
765 | } | |
766 | ||
767 | //_____________________________________________________________________________ | |
768 | Int_t AliAltroRawStream::GetChannel() const | |
769 | { | |
770 | // The method provides the channel index | |
771 | // for the current hardware address. | |
772 | // In case the hardware address has not been yet | |
773 | // initialized, the method returns -1 | |
774 | if (fHWAddress == -1) return -1; | |
775 | ||
776 | return (fHWAddress & 0xF); | |
777 | } | |
eb09ec9a | 778 | |
779 | //_____________________________________________________________________________ | |
780 | void AliAltroRawStream::AddMappingErrorLog(const char *message) | |
781 | { | |
782 | // Signal a mapping error | |
783 | // The method can be used by the TPC,PHOS,EMCAL,FMD raw stream | |
784 | // classes in order to log an error related to bad altro mapping | |
785 | ||
786 | if (fRawReader) fRawReader->AddMinorErrorLog(kBadAltroMapping,message); | |
787 | } |