X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=ITS%2FAliITSRawStreamSDD.cxx;h=1cf27439a1cfd07fddab35f3860c67073309b644;hb=39de6caac573239458b0ba5a98555dca7d4e7b8a;hp=7babff87d357b3960d576ec802894249e2cf2d02;hpb=e56160b864358b3c13ff606b467fd385d843254c;p=u%2Fmrichter%2FAliRoot.git diff --git a/ITS/AliITSRawStreamSDD.cxx b/ITS/AliITSRawStreamSDD.cxx index 7babff87d35..1cf27439a1c 100644 --- a/ITS/AliITSRawStreamSDD.cxx +++ b/ITS/AliITSRawStreamSDD.cxx @@ -1,5 +1,5 @@ /************************************************************************** - * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * + * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. * * * * Author: The ALICE Off-line Project. * * Contributors are mentioned in the code where appropriate. * @@ -13,7 +13,7 @@ * provided "as is" without express or implied warranty. * **************************************************************************/ -/* $Id$ */ +/* $Id$*/ /////////////////////////////////////////////////////////////////////////////// /// @@ -22,89 +22,266 @@ /////////////////////////////////////////////////////////////////////////////// #include "AliITSRawStreamSDD.h" +#include "AliITSRawStreamSDDCompressed.h" #include "AliRawReader.h" +#include "AliLog.h" ClassImp(AliITSRawStreamSDD) - -const Int_t AliITSRawStreamSDD::fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL] = { - {240,241,242,246,247,248,252,253,254,258,259,260,264,265,266,270,271,272,276,277,278,-1}, - {243,244,245,249,250,251,255,256,257,261,262,263,267,268,269,273,274,275,279,280,281,-1}, - {282,283,284,288,289,290,294,295,296,300,301,302,306,307,308,312,313,314,318,319,320,-1}, - {285,286,287,291,292,293,297,298,299,303,304,305,309,310,311,315,316,317,321,322,323,-1}, - {324,325,326,327,332,333,334,335,340,341,342,343,348,349,350,351,356,357,358,359,364,365}, - {328,329,330,331,336,337,338,339,344,345,346,347,352,353,354,355,360,361,362,363,368,369}, - {366,367,372,373,374,375,380,381,382,383,388,389,390,391,396,397,398,399,404,405,406,407}, - {370,371,376,377,378,379,384,385,386,387,392,393,394,395,400,401,402,403,408,409,410,411}, - {412,413,414,415,420,421,422,423,428,429,430,431,436,437,438,439,444,445,446,447,452,453}, - {416,417,418,419,424,425,426,427,432,433,434,435,440,441,442,443,448,449,450,451,456,457}, - {454,455,460,461,462,463,468,469,470,471,476,477,478,479,484,485,486,487,492,493,494,495}, - {458,459,464,465,466,467,472,473,474,475,480,481,482,483,488,489,490,491,496,497,498,499}}; const UInt_t AliITSRawStreamSDD::fgkCodeLength[8] = {8, 18, 2, 3, 4, 5, 6, 7}; +//______________________________________________________________________ AliITSRawStreamSDD::AliITSRawStreamSDD(AliRawReader* rawReader) : AliITSRawStream(rawReader), +fDDLModuleMap(0), fData(0), -fSkip(0), +fResetSkip(kTRUE), fEventId(0), -fCarlosId(0), +fCarlosId(-1), fChannel(0), -fJitter(0){ +fJitter(0), +fEightBitSignal(0), +fDecompressAmbra(kTRUE) +{ // create an object to read ITS SDD raw digits - - for(Int_t i=0;i<2;i++){ - fChannelData[i]=0; - fLastBit[i]=0; - fChannelCode[i]=0; - fReadCode[i]=kFALSE; - fReadBits[i]=0; - fTimeBin[i]=0; - fAnode[i]=0; - fLowThreshold[i]=0; + Reset(); + for(Int_t im=0;imReset(); fRawReader->Select("ITSSDD"); + for(Short_t i=0; iReset(); + rawReader->Select("ITSSDD"); + do{ + if(!rawReader->ReadNextData(data)) return 0x0; + }while(rawReader->GetDataSize()==0); + UChar_t attr=rawReader->GetBlockAttributes(); + return attr; +} +//______________________________________________________________________ +AliITSRawStream* AliITSRawStreamSDD::CreateRawStreamSDD(AliRawReader* rawReader, UChar_t attributes){ + // instantiates the proper raw stream from block attributes value + + Int_t rawFormat=(attributes&0xE0)>>5; + rawReader->Reset(); + AliITSRawStream* inputSDD; + if(rawFormat==0){ + inputSDD=new AliITSRawStreamSDDCompressed(rawReader); + inputSDD->SetADCEncoded(kTRUE); + }else{ + inputSDD=new AliITSRawStreamSDD(rawReader); + } + return inputSDD; +} +//______________________________________________________________________ +AliITSRawStream* AliITSRawStreamSDD::CreateRawStreamSDD(AliRawReader* rawReader){ + // reads the data format from CDH and instantiates the proper raw stream + UChar_t attr=ReadBlockAttributes(rawReader); + return CreateRawStreamSDD(rawReader,attr); +} +//______________________________________________________________________ UInt_t AliITSRawStreamSDD::ReadBits() { // read bits from the given channel - - UInt_t result = (fChannelData[fChannel] & ((1<>= fReadBits[fChannel]; - fLastBit[fChannel] -= fReadBits[fChannel]; + UInt_t result = (fChannelData[fCarlosId][fChannel] & ((1<>= fReadBits[fCarlosId][fChannel]; + fLastBit[fCarlosId][fChannel] -= fReadBits[fCarlosId][fChannel]; return result; } +//______________________________________________________________________ Int_t AliITSRawStreamSDD::DecompAmbra(Int_t value) const { -// AMBRA decompression - + // AMBRA decompression (from 8 to 10 bit) + if ((value & 0x80) == 0) { return value & 0x7f; } else if ((value & 0x40) == 0) { + if(value&1) return 0x080 + ((value & 0x3f) << 1); return 0x081 + ((value & 0x3f) << 1); } else if ((value & 0x20) == 0) { + if(value&1) return 0x103 + ((value & 0x1f) << 3); return 0x104 + ((value & 0x1f) << 3); } else { + if(value&1) return 0x207 + ((value & 0x1f) << 4); return 0x208 + ((value & 0x1f) << 4); } + } +//______________________________________________________________________ Bool_t AliITSRawStreamSDD::Next() { // read the next raw digit // returns kFALSE if there is no digit left +// returns kTRUE and fCompletedModule=kFALSE and fCompletedDDL=kFALSE when a digit is found +// returns kTRUE and fCompletedModule=kTRUE and fCompletedDDL=kFALSE when a module is completed (=3x3FFFFFFF footer words) +// returns kTRUE and fCompletedModule=kFALSE and fCompletedDDL=kTRUE when a DDL is completed (=jitter word) fPrevModuleID = fModuleID; - if (!fRawReader->ReadNextInt(fData)) return kFALSE; + fCompletedModule=kFALSE; + + while (kTRUE) { + if(fResetSkip){ + Reset(); + Bool_t kSkip = SkipHeaderWord(); + if(!kSkip) return kSkip; + fResetSkip=kFALSE; + } + if ((fChannel < 0) || (fCarlosId < 0) || (fChannel >= 2) || (fCarlosId >= kModulesPerDDL) || (fLastBit[fCarlosId][fChannel] < fReadBits[fCarlosId][fChannel]) ) { + if (!fRawReader->ReadNextInt(fData)) return kFALSE; // read next word - UInt_t relModuleID = (fData >> 25) & 0x0000007F; - fModuleID = fgkDDLModuleMap[fRawReader->GetDDLID()][relModuleID]; - fCoord1 = (fData >> 16) & 0x000001FF; - fCoord2 = (fData >> 8) & 0x000000FF; - fSignal = fData & 0x000000FF; - return kTRUE; + if((fData >> 16) == 0x7F00){ // jitter word + fJitter = fData&0x000000ff; + fResetSkip=kTRUE; + fCompletedModule=kFALSE; + fCompletedDDL=kTRUE; + return kTRUE; + } + + UInt_t nData28= fData >> 28; + UInt_t nData30= fData >> 30; + + + if (nData28== 0x02) { // header + fEventId = (fData >> 3) & 0x07FF; + } else if (nData28== 0x03) { // Carlos and FIFO words or Footers + if(fData>=fICarlosWord[0]&&fData<=fICarlosWord[11]) { // Carlos Word + fCarlosId = fData-fICarlosWord[0]; + Int_t iFifoIdx = fCarlosId/3; + fNfifo[iFifoIdx] = fCarlosId; + } else if (fData>=fIFifoWord[0]&&fData<=fIFifoWord[3]){ // FIFO word + fCarlosId = fNfifo[fData-fIFifoWord[0]]; + } else if(fData==0x3FFFFFFF && fCarlosId>=0 && fCarlosIdAddMajorErrorLog(kDataError,"Bad footer"); + AliWarning(Form("Invalid data: bad footer %08X\n", fData)); + return kFALSE; + } + } else if (nData30 == 0x02 || nData30 == 0x03) { + fChannel = nData30-2; + if(fCarlosId>=0 && fCarlosIdAddMajorErrorLog(kDataFormatErr,Form("Invalid data %8.8x",fData)); + AliWarning(Form("Invalid data: %08X\n", fData)); + return kFALSE; + } + + if(fCarlosId>=0 && fCarlosId GetDDLID(); + if(nDDL>=0){ + fModuleID = GetModuleNumber(nDDL,fCarlosId); + } + } + } else { // decode data + if (fReadCode[fCarlosId][fChannel]) {// read the next code word + fChannelCode[fCarlosId][fChannel] = ReadBits(); + fReadCode[fCarlosId][fChannel] = kFALSE; + fReadBits[fCarlosId][fChannel] = fgkCodeLength[fChannelCode[fCarlosId][fChannel]]; + } else { // read the next data word + UInt_t data = ReadBits(); + fReadCode[fCarlosId][fChannel] = kTRUE; + fReadBits[fCarlosId][fChannel] = 3; + if (fChannelCode[fCarlosId][fChannel] == 0) { // set the time bin + fTimeBin[fCarlosId][fChannel] = data; + } else if (fChannelCode[fCarlosId][fChannel] == 1) { // next anode + fTimeBin[fCarlosId][fChannel] = 0; + fAnode[fCarlosId][fChannel]++; + } else { // ADC signal data + fEightBitSignal=data + (1 << fChannelCode[fCarlosId][fChannel]); + if(fDecompressAmbra) fSignal = DecompAmbra(fEightBitSignal + fLowThresholdArray[fModuleID-kSPDModules][fChannel]); + fCoord1 = fAnode[fCarlosId][fChannel]; + fCoord2 = fTimeBin[fCarlosId][fChannel]; + fTimeBin[fCarlosId][fChannel]++; + fCompletedModule=kFALSE; + fCompletedDDL=kFALSE; + return kTRUE; + } + } + } + } + return kFALSE; +} + +//______________________________________________________________________ +void AliITSRawStreamSDD::Reset(){ + + //reset data member for a new ddl + for(Int_t i=0;i<2;i++){ + for(Int_t ic=0;icReadNextInt(fData)) return kFALSE; + if ((fData >> 30) == 0x01) continue; // JTAG word + if(fData==0xFFFFFFFF) return kTRUE; + } }