//_____________________________________________________________________________
AliAltroRawStream::AliAltroRawStream(AliRawReader* rawReader) :
fNoAltroMapping(kTRUE),
+ fIsOldRCUFormat(kFALSE),
+ fIsShortDataHeader(kFALSE),
fDDLNumber(-1),
fPrevDDLNumber(-1),
+ fRCUId(-1),
+ fPrevRCUId(-1),
fHWAddress(-1),
fPrevHWAddress(-1),
fTime(-1),
fData(NULL),
fPosition(0),
fCount(0),
- fBunchLength(0)
+ fBunchLength(0),
+ fRCUTrailerData(NULL),
+ fRCUTrailerSize(0)
{
// create an object to read Altro raw digits
fSegmentation[0] = fSegmentation[1] = fSegmentation[2] = -1;
AliAltroRawStream::AliAltroRawStream(const AliAltroRawStream& stream) :
TObject(stream),
fNoAltroMapping(kTRUE),
+ fIsOldRCUFormat(kFALSE),
+ fIsShortDataHeader(kFALSE),
fDDLNumber(-1),
fPrevDDLNumber(-1),
+ fRCUId(-1),
+ fPrevRCUId(-1),
fHWAddress(-1),
fPrevHWAddress(-1),
fTime(-1),
fData(NULL),
fPosition(0),
fCount(0),
- fBunchLength(0)
+ fBunchLength(0),
+ fRCUTrailerData(NULL),
+ fRCUTrailerSize(0)
{
Fatal("AliAltroRawStream", "copy constructor not implemented");
}
fPosition = fCount = fBunchLength = 0;
- fDDLNumber = fPrevDDLNumber = fHWAddress = fPrevHWAddress = fTime = fPrevTime = fSignal = fTimeBunch = -1;
+ fRCUTrailerData = NULL;
+ fRCUTrailerSize = 0;
+
+ fDDLNumber = fPrevDDLNumber = fRCUId = fPrevRCUId = fHWAddress = fPrevHWAddress = fTime = fPrevTime = fSignal = fTimeBunch = -1;
if (fRawReader) fRawReader->Reset();
// returns kFALSE if there is no digit left
fPrevDDLNumber = fDDLNumber;
+ fPrevRCUId = fRCUId;
fPrevHWAddress = fHWAddress;
fPrevTime = fTime;
fPosition = GetPosition();
}
- if (!ReadTrailer())
- AliFatal("Incorrect trailer information !");
+ ReadTrailer();
fBunchLength = 0;
}
fRawReader->Select(detId);
}
+//_____________________________________________________________________________
+void AliAltroRawStream::SelectRawData(const char *detName)
+{
+ // Select the raw data for specific
+ // detector name
+ AliDebug(1,Form("Selecting raw data for detector %s",detName));
+ fRawReader->Select(detName);
+}
+
//_____________________________________________________________________________
UShort_t AliAltroRawStream::GetNextWord()
{
Int_t iByte = iBit / 8;
Int_t shift = iBit % 8;
- // recalculate the byte numbers and the shift because
- // the raw data is written as integers where the high bits are filled first
+ // the raw data is written as integers where the low bits are filled first
// -> little endian is assumed here !
- Int_t iByteHigh = 4 * (iByte / 4) + 3 - (iByte % 4);
+ Int_t iByteLow = iByte;
iByte++;
- Int_t iByteLow = 4 * (iByte / 4) + 3 - (iByte % 4);
- shift = 6 - shift;
+ Int_t iByteHigh = iByte;
return ((fData[iByteHigh] * 256 + fData[iByteLow]) >> shift) & 0x03FF;
}
UShort_t temp;
Int_t nFillWords = 0;
while ((temp = GetNextWord()) == 0x2AA) nFillWords++;
- if (nFillWords == 0)
- AliFatal("Incorrect trailer found ! Expected 0x2AA not found !");
+ if (nFillWords == 0) {
+ fRawReader->AddMajorErrorLog(kAltroTrailerErr,"no 0x2AA");
+ // PrintDebug();
+ AliWarning("Incorrect trailer found ! Expected 0x2AA not found !");
+ // trying to recover and find the next bunch
+ while ((fPosition > 5) && (temp != 0x2AA)) temp = GetNextWord();
+ if (temp != 0x2AA) {
+ fCount = fPosition = 0;
+ return kFALSE;
+ }
+ temp = GetNextWord();
+ }
//Then read the trailer
- if (fPosition <= 4)
- AliFatal(Form("Incorrect raw data size ! Expected at lest 4 words but found %d !",fPosition));
+ if (fPosition < 5) {
+ fRawReader->AddMajorErrorLog(kAltroTrailerErr,Form("size %d < 5",
+ fPosition));
+ // PrintDebug();
+ AliWarning(Form("Incorrect raw data size ! Expected at least 5 words but found %d !",fPosition));
+ fCount = fPosition = 0;
+ return kFALSE;
+ }
fCount = (temp << 4) & 0x3FF;
- if ((temp >> 6) != 0xA)
- AliFatal(Form("Incorrect trailer found ! Expecting 0xA but found %x !",temp >> 6));
+ if ((temp >> 6) != 0xA) {
+ fRawReader->AddMajorErrorLog(kAltroTrailerErr,"no 0xA");
+ // PrintDebug();
+ AliWarning(Form("Incorrect trailer found ! Expecting 0xA but found 0x%x !",temp >> 6));
+ fCount = 0;
+ return kFALSE;
+ }
temp = GetNextWord();
fHWAddress = (temp & 0x3) << 10;
- if (((temp >> 2) & 0xF) != 0xA)
- AliFatal(Form("Incorrect trailer found ! Expecting second 0xA but found %x !",(temp >> 2) & 0xF));
+ if (((temp >> 2) & 0xF) != 0xA) {
+ fRawReader->AddMajorErrorLog(kAltroTrailerErr,"no second 0xA");
+ // PrintDebug();
+ AliWarning(Form("Incorrect trailer found ! Expecting second 0xA but found 0x%x !",(temp >> 2) & 0xF));
+ fCount = 0;
+ return kFALSE;
+ }
fCount |= ((temp & 0x3FF) >> 6);
if (fCount == 0) return kFALSE;
{
// Read altro payload in
// backward direction
- if (fPosition <= 0)
- AliFatal("Could not read bunch length !");
+ if (fPosition <= 0) {
+ fRawReader->AddMinorErrorLog(kBunchLengthReadErr,"");
+ // PrintDebug();
+ AliWarning("Could not read bunch length !");
+ }
fBunchLength = GetNextWord() - 2;
fTimeBunch = fBunchLength;
fCount--;
- if (fPosition <= 0)
- AliFatal("Could not read time bin !");
+ if (fPosition <= 0) {
+ fRawReader->AddMinorErrorLog(kTimeBinReadErr,"");
+ // PrintDebug();
+ AliWarning("Could not read time bin !");
+ }
fTime = GetNextWord();
fCount--;
void AliAltroRawStream::ReadAmplitude()
{
// Read next time bin amplitude
- if (fPosition <= 0)
- AliFatal("Could not read sample amplitude !");
+ if (fPosition <= 0) {
+ fRawReader->AddMinorErrorLog(kAmplitudeReadErr,"");
+ // PrintDebug();
+ AliWarning("Could not read sample amplitude !");
+ }
fSignal = GetNextWord();
fCount--;
{
// Sets the position in the
// input stream
- if (((fRawReader->GetDataSize() * 8) % 10) != 0)
- AliFatal(Form("Incorrect raw data size ! %d words are found !",fRawReader->GetDataSize()));
- return (fRawReader->GetDataSize() * 8) / 10;
+ // Read the RCU trailer
+ // This includes the trailer size,
+ // RCU identifier and raw data payload.
+ // The RCU trailer format is described
+ // in details in the RCU manual.
+
+ if (!fIsOldRCUFormat) {
+ // First read 32-bit word with the
+ // trailer size (22 bits) and RCU ID (the rest)
+ Int_t index = fRawReader->GetDataSize();
+ UInt_t word = Get32bitWord(index);
+ fRCUId = (Int_t)(word >> 22);
+ Int_t trailerSize = (word & 0x3FFFFF);
+
+ // Now read the beginning of the trailer
+ // where the payload size is written
+ if (trailerSize < 2) {
+ PrintDebug();
+ AliFatal(Form("Invalid trailer size found (%d bytes) !",trailerSize*4));
+ }
+ fRCUTrailerSize = (trailerSize-2)*4;
+ index -= fRCUTrailerSize;
+ if (index < 4) {
+ PrintDebug();
+ AliFatal(Form("Invalid trailer size found (%d bytes) ! The size is bigger than the raw data size (%d bytes)!",
+ trailerSize*4,
+ fRawReader->GetDataSize()));
+ }
+ fRCUTrailerData = fData + index;
+ Int_t position = Get32bitWord(index);
+ // The size is specified in a number of 40bits
+ // Therefore we need to transform it to number of bytes
+ position *= 5;
+
+ // Check the consistency of the header and trailer
+ if ((fRawReader->GetDataSize() - trailerSize*4) != position) {
+ PrintDebug();
+ AliFatal(Form("Inconsistent raw data size ! Raw data size - %d bytes (from the header), RCU trailer - %d bytes, raw data paylod - %d bytes !",
+ fRawReader->GetDataSize(),
+ trailerSize*4,
+ position));
+ }
+
+ return position * 8 / 10;
+ }
+ else {
+ // In case of the Old RCU trailer format
+ // we have to read just the size of altro payload
+ // in units of 40-bit words
+ Int_t index = fRawReader->GetDataSize();
+ Int_t position = Get32bitWord(index);
+
+ fRCUId = -1;
+ fRCUTrailerSize = 0;
+ fRCUTrailerData = NULL;
+
+ // The size is specified in a number of 40bits
+ // Therefore we need to transform it to number of bytes
+ position *= 5;
+
+ if (!fIsShortDataHeader) {
+
+ // Check the consistency of the header and trailer
+ if ((fRawReader->GetDataSize() - 4) != position) {
+ fRawReader->AddMajorErrorLog(kRCUTrailerSizeErr,Form("h=%d rcu=%d bytes",
+ fRawReader->GetDataSize()-4,
+ position));
+ // PrintDebug();
+ AliWarning(Form("Inconsistent raw data size ! Expected %d bytes (from the header), found %d bytes (in the RCU trailer)!",
+ fRawReader->GetDataSize()-4,
+ position));
+ position = fRawReader->GetDataSize()-4;
+ }
+ }
+ else {
+ // Check the consistency of the header and trailer
+ // In this case the header is shorter by 4 bytes
+ if (fRawReader->GetDataSize() != position) {
+ fRawReader->AddMajorErrorLog(kRCUTrailerSizeErr,Form("h=%d rcu=%d bytes",
+ fRawReader->GetDataSize(),
+ position));
+ // PrintDebug();
+ AliWarning(Form("Inconsistent raw data size ! Expected %d bytes (from the header), found %d bytes (in the RCU trailer)!",
+ fRawReader->GetDataSize(),
+ position));
+ position = fRawReader->GetDataSize();
+ }
+
+ // 7 32-bit words Common Data Header
+ // therefore we have to shift back by 4 bytes
+ // the pointer to the raw data payload
+ fData -= 4;
+ }
+
+ // Return the position in units of 10-bit words
+ return position*8/10;
+ }
+}
+
+//_____________________________________________________________________________
+UInt_t AliAltroRawStream::Get32bitWord(Int_t &index)
+{
+ // This method returns the 32 bit word at a given
+ // position inside the raw data payload.
+ // The 'index' points to the beginning of the next word.
+ // The method is supposed to be endian (platform)
+ // independent.
+ if (!fData) {
+ PrintDebug();
+ AliFatal("Raw data paylod buffer is not yet initialized !");
+ }
+
+ if (index < 4) {
+ fRawReader->AddFatalErrorLog(k32bitWordReadErr,Form("pos = %d",index));
+ // PrintDebug();
+ AliWarning(Form("Invalid raw data payload position (%d) !",index));
+ }
+
+ UInt_t word = 0;
+ word = fData[--index] << 24;
+ word |= fData[--index] << 16;
+ word |= fData[--index] << 8;
+ word |= fData[--index];
+
+ return word;
+}
+
+//_____________________________________________________________________________
+Bool_t AliAltroRawStream::GetRCUTrailerData(UChar_t*& data) const
+{
+ // Return a pointer to the RCU trailer
+ // data. Should be called always after
+ // the RCU trailer was already processed
+ // in the GetPosition() method
+ if (!fRCUTrailerSize || !fRCUTrailerData) {
+ AliError("No valid RCU trailer data is found !");
+ data = NULL;
+ return kFALSE;
+ }
+
+ data = fRCUTrailerData;
+
+ return kTRUE;
+}
+
+//_____________________________________________________________________________
+void AliAltroRawStream::PrintDebug() const
+{
+ // The method prints all the available
+ // debug information.
+ // Its is used in case of decoding errors.
+
+ AliError("Start of debug printout\n--------------------");
+
+ Dump();
+ if (fRawReader) fRawReader->Dump();
+
+ AliError("End of debug printout\n--------------------");
+}
+
+//_____________________________________________________________________________
+Int_t AliAltroRawStream::GetBranch() const
+{
+ // The method provides the RCU branch index (0 or 1)
+ // for the current hardware address.
+ // In case the hardware address has not been yet
+ // initialized, the method returns -1
+ if (fHWAddress == -1) return -1;
+
+ return ((fHWAddress >> 11) & 0x1);
+}
+
+//_____________________________________________________________________________
+Int_t AliAltroRawStream::GetFEC() const
+{
+ // The method provides the front-end card index
+ // for the current hardware address.
+ // In case the hardware address has not been yet
+ // initialized, the method returns -1
+ if (fHWAddress == -1) return -1;
+
+ return ((fHWAddress >> 7) & 0xF);
+}
+
+//_____________________________________________________________________________
+Int_t AliAltroRawStream::GetAltro() const
+{
+ // The method provides the altro chip index
+ // for the current hardware address.
+ // In case the hardware address has not been yet
+ // initialized, the method returns -1
+ if (fHWAddress == -1) return -1;
+
+ return ((fHWAddress >> 4) & 0x7);
+}
+
+//_____________________________________________________________________________
+Int_t AliAltroRawStream::GetChannel() const
+{
+ // The method provides the channel index
+ // for the current hardware address.
+ // In case the hardware address has not been yet
+ // initialized, the method returns -1
+ if (fHWAddress == -1) return -1;
+
+ return (fHWAddress & 0xF);
+}
+
+//_____________________________________________________________________________
+void AliAltroRawStream::AddMappingErrorLog(const char *message)
+{
+ // Signal a mapping error
+ // The method can be used by the TPC,PHOS,EMCAL,FMD raw stream
+ // classes in order to log an error related to bad altro mapping
+
+ if (fRawReader) fRawReader->AddMinorErrorLog(kBadAltroMapping,message);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff