const Int_t AliITSRawStreamSPD::fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL] = {
{ 0, 1, 4, 5, 80, 81, 84, 85, 88, 89, 92, 93},
- { 2, 3, 6, 7, 82, 83, 86, 87, 90, 91, 94, 95},
{ 8, 9,12,13, 96, 97,100,101,104,105,108,109},
- {10,11,14,15, 98, 99,102,103,106,107,110,111},
{16,17,20,21,112,113,116,117,120,121,124,125},
- {18,19,22,23,114,115,118,119,122,123,126,127},
{24,25,28,29,128,129,132,133,136,137,140,141},
- {26,27,30,31,130,131,134,135,138,139,142,143},
{32,33,36,37,144,145,148,149,152,153,156,157},
- {34,35,38,39,146,147,150,151,154,155,158,159},
{40,41,44,45,160,161,164,165,168,169,172,173},
- {42,43,46,47,162,163,166,167,170,171,174,175},
{48,49,52,53,176,177,180,181,184,185,188,189},
- {50,51,54,55,178,179,182,183,186,187,190,191},
{56,57,60,61,192,193,196,197,200,201,204,205},
- {58,59,62,63,194,195,198,199,202,203,206,207},
{64,65,68,69,208,209,212,213,216,217,220,221},
- {66,67,70,71,210,211,214,215,218,219,222,223},
{72,73,76,77,224,225,228,229,232,233,236,237},
+ { 2, 3, 6, 7, 82, 83, 86, 87, 90, 91, 94, 95},
+ {10,11,14,15, 98, 99,102,103,106,107,110,111},
+ {18,19,22,23,114,115,118,119,122,123,126,127},
+ {26,27,30,31,130,131,134,135,138,139,142,143},
+ {34,35,38,39,146,147,150,151,154,155,158,159},
+ {42,43,46,47,162,163,166,167,170,171,174,175},
+ {50,51,54,55,178,179,182,183,186,187,190,191},
+ {58,59,62,63,194,195,198,199,202,203,206,207},
+ {66,67,70,71,210,211,214,215,218,219,222,223},
{74,75,78,79,226,227,230,231,234,235,238,239}
};
fData(0),
fDDLNumber(-1),
fEventNumber(-1),
- fModuleNumber(-1),
fOffset(0),
- fHitCount(0)
+ fHitCount(0),
+ fDataChar1(0),
+ fDataChar2(0),
+ fDataChar3(0),
+ fDataChar4(0),
+ fFirstWord(kTRUE)
{
// create an object to read ITS SPD raw digits
- fRawReader->Select(1);
+ fRawReader->Select("ITSSPD");
}
+Bool_t AliITSRawStreamSPD::ReadNextShort()
+{
+ if (fFirstWord) {
+ fFirstWord=kFALSE;
+ Bool_t b1 = fRawReader->ReadNextChar(fDataChar1);
+ if (!b1) return kFALSE;
+ Bool_t b2, b3, b4;
+ b2 = fRawReader->ReadNextChar(fDataChar2);
+ b3 = fRawReader->ReadNextChar(fDataChar3);
+ b4 = fRawReader->ReadNextChar(fDataChar4);
+ if (!(b2 && b3 && b4)) {
+ return kFALSE;
+ }
+ fData = fDataChar3+(fDataChar4<<8);
+ }
+ else {
+ fFirstWord=kTRUE;
+ fData = fDataChar1+(fDataChar2<<8);
+ }
+
+ return kTRUE;
+}
+
+void AliITSRawStreamSPD::SkipCalibHeader()
+{
+ // Checks if there is an extra calibration header
+ // present in the raw data. Reads past this in that case.
+
+ fRawReader->ReadHeader(); // need this to get access to the block attributes
+ UChar_t attr = fRawReader->GetBlockAttributes();
+ if ((attr & 0x40) == 0x40) { // is the header present?
+ Bool_t b1, b2, b3, b4;
+ b1 = fRawReader->ReadNextChar(fDataChar1);
+ b2 = fRawReader->ReadNextChar(fDataChar2);
+ b3 = fRawReader->ReadNextChar(fDataChar3);
+ b4 = fRawReader->ReadNextChar(fDataChar4);
+ if (b1 && b2 && b3 && b4) {
+ // length of cal header:
+ UInt_t calLen = fDataChar1+(fDataChar2<<8)+(fDataChar3<<16)+(fDataChar4<<24);
+ // read past the cal header:
+ UInt_t tmpData;
+ for (UInt_t iword=0; iword<calLen; iword++) {
+ fRawReader->ReadNextInt(tmpData);
+ }
+ }
+ }
+}
Bool_t AliITSRawStreamSPD::Next()
{
// returns kFALSE if there is no digit left
fPrevModuleID = fModuleID;
- while (fRawReader->ReadNextShort(fData)) {
-
- if ((fData & 0xC000) == 0x4000) { // header
+ // while (fRawReader->ReadNextShort(fData)) {
+ while (ReadNextShort()) {
+ if ((fData & 0xC000) == 0x4000) { // header
fHitCount = 0;
UShort_t eventNumber = (fData >> 4) & 0x007F;
if (fEventNumber < 0) {
fEventNumber = eventNumber;
- } else if (eventNumber != fEventNumber) {
+ }
+ else if (eventNumber != fEventNumber) {
Warning("Next", "mismatching event numbers: %d != %d",
eventNumber, fEventNumber);
}
UShort_t chipAddr = fData & 0x000F;
- if (fRawReader->GetDDLID() != fDDLNumber) {
- fModuleNumber = -1;
- fDDLNumber = fRawReader->GetDDLID();
+ if (chipAddr>9) {
+ Error("Next", "overflow chip addr (= %d) , setting it to 9", chipAddr);
+ chipAddr=9;
}
- if ((chipAddr == 5) || (chipAddr == 0)) {
- fModuleNumber++;
- while (fRawReader->TestBlockAttribute(fModuleNumber/2)) fModuleNumber++;
+ UShort_t halfStaveNr = (fData & 0x3800)>>11;
+ if (halfStaveNr>5 || fRawReader->TestBlockAttribute(halfStaveNr)) {
+ Error("Next", "half stave number error(= %d) , setting it to 5", halfStaveNr);
+ halfStaveNr=5;
}
- if (fDDLNumber < kDDLsNumber) {
- fModuleID = fgkDDLModuleMap[fDDLNumber][fModuleNumber];
- } else {
- fModuleID = fModuleNumber;
+ fDDLNumber = fRawReader->GetDDLID();
+ if (fDDLNumber>19 || fDDLNumber<0) {
+ Error("Next", "DDL number error (= %d) , setting it to 19", fDDLNumber);
+ fDDLNumber=19;
}
+ fModuleID = fgkDDLModuleMap[fDDLNumber][halfStaveNr*2+chipAddr/5];
fOffset = 32 * (chipAddr % 5);
- } else if ((fData & 0xC000) == 0x0000) { // trailer
+ }
+ else if ((fData & 0xC000) == 0x0000) { // trailer
UShort_t hitCount = fData & 0x1FFF;
if (hitCount != fHitCount) Error("Next", "wrong number of hits: %d != %d", fHitCount, hitCount);
- } else if ((fData & 0xC000) == 0x8000) { // pixel hit
+ }
+ else if ((fData & 0xC000) == 0x8000) { // pixel hit
fHitCount++;
fCoord1 = (fData & 0x001F) + fOffset;
fCoord2 = (fData >> 5) & 0x00FF;
return kTRUE;
- } else { // fill word
+ }
+ else { // fill word
if ((fData & 0xC000) != 0xC000) Error("Next", "wrong fill word!");
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff