* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
/* $Id$ */
-
+/** @file AliFMDRawReader.cxx
+ @author Christian Holm Christensen <cholm@nbi.dk>
+ @date Mon Mar 27 12:45:23 2006
+ @brief Class to read raw data
+ @ingroup FMD_rec
+*/
//____________________________________________________________________
//
// Class to read ADC values from a AliRawReader object.
//
-#include <AliLog.h> // ALILOG_H
-#include "AliFMD.h" // ALIFMD_H
+// This class uses the AliFMDRawStreamer class to read the ALTRO
+// formatted data.
+//
+// +-------+
+// | TTask |
+// +-------+
+// ^
+// |
+// +-----------------+ <<references>> +--------------+
+// | AliFMDRawReader |<>----------------| AliRawReader |
+// +-----------------+ +--------------+
+// | ^
+// | <<uses>> |
+// V |
+// +-----------------+ <<uses>> |
+// | AliFMDRawStream |------------------------+
+// +-----------------+
+// |
+// V
+// +----------------+
+// | AliAltroStream |
+// +----------------+
+//
+// #include <AliLog.h> // ALILOG_H
+#include "AliFMDDebug.h" // Better debug macros
+#include "AliFMDParameters.h" // ALIFMDPARAMETERS_H
#include "AliFMDDigit.h" // ALIFMDDIGIT_H
-#include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H
+#include "AliFMDSDigit.h" // ALIFMDSDIGIT_H
+// #include "AliFMDRawStream.h" // ALIFMDRAWSTREAM_H
#include "AliRawReader.h" // ALIRAWREADER_H
#include "AliFMDRawReader.h" // ALIFMDRAWREADER_H
-#include <TArrayI.h> // ROOT_TArrayI
-// #include <TClonesArray.h> // ROOT_TClonesArray
+#include "AliFMDDebug.h"
+#include "AliFMDCalibSampleRate.h"
+#include "AliFMDCalibStripRange.h"
+#include "AliFMDAltroMapping.h"
+#include "AliFMDUShortMap.h"
+// #include "AliFMDAltroIO.h" // ALIFMDALTROIO_H
+#include "AliAltroRawStreamV3.h"
+#include <TArrayS.h> // ROOT_TArrayS
+#include <TTree.h> // ROOT_TTree
+#include <TClonesArray.h> // ROOT_TClonesArray
+#include <TString.h>
+#include <iostream>
+#include <climits>
+// #include <iomanip>
//____________________________________________________________________
-ClassImp(AliFMDRawReader);
+ClassImp(AliFMDRawReader)
+#if 0
+ ; // This is here to keep Emacs for indenting the next line
+#endif
//____________________________________________________________________
-AliFMDRawReader::AliFMDRawReader(AliFMD* fmd, AliRawReader* reader)
+AliFMDRawReader::AliFMDRawReader(AliRawReader* reader, TTree* tree)
: TTask("FMDRawReader", "Reader of Raw ADC values from the FMD"),
- fFMD(fmd),
- fReader(reader)
+ fTree(tree),
+ fReader(reader),
+ // fSampleRate(1),
+ fData(0),
+ fNbytes(0),
+ fMinStrip(0),
+ fMaxStrip(127),
+ fPreSamp(14+5),
+ fSeen(0),
+ fVerbose(false),
+ fErrors("TObject"),
+ fNErrChanLen(0),
+ fNErrAddress(0)
{
// Default CTOR
- SetSampleRate(fmd->GetSampleRate());
+ for (Int_t i = 0; i < 3; i++) {
+ fSampleRate[i] = 0;
+ fZeroSuppress[i] = kFALSE;
+ fNoiseFactor[i] = 1;
+ fL1Phase[i] = 0;
+ fNErrors[i] = 0;
+ }
}
-
//____________________________________________________________________
void
AliFMDRawReader::Exec(Option_t*)
{
- // Read raw data into the digits array
- if (!fReader->ReadHeader()) {
- Error("ReadAdcs", "Couldn't read header");
+ // Read the data
+ TClonesArray* array = new TClonesArray("AliFMDDigit");
+ if (!fTree) {
+ AliError("No tree");
return;
}
+ fTree->Branch("FMD", &array);
+
+
+ ReadAdcs(array);
+ Int_t nWrite = fTree->Fill();
+ AliDebugF(1,"Got a grand total of %d digits, wrote %d bytes to tree",
+ array->GetEntriesFast(), nWrite);
+ delete array;
+}
- // Use AliAltroRawStream to read the ALTRO format. No need to
- // reinvent the wheel :-)
- AliFMDRawStream input(fReader, fSampleRate);
- // Select FMD DDL's
- fReader->Select(AliFMD::kBaseDDL >> 8);
-
- Int_t oldDDL = -1;
- Int_t count = 0;
- UShort_t detector = 1; // Must be one here
- UShort_t oldDetector = 0;
- Bool_t next = kTRUE;
-
- // local Cache
- TArrayI counts(10);
- counts.Reset(-1);
-
- // Loop over data in file
- while (next) {
- next = input.Next();
-
- count++;
- Int_t ddl = fReader->GetDDLID();
- if (ddl != oldDDL || input.IsNewStrip() || !next) {
- // Make a new digit, if we have some data (oldDetector == 0,
- // means that we haven't really read anything yet - that is,
- // it's the first time we get here).
- if (oldDetector > 0) {
- // Got a new strip.
- AliDebug(10, Form("Add a new strip: FMD%d%c[%2d,%3d] "
- "(current: FMD%d%c[%2d,%3d])",
- oldDetector, input.PrevRing(),
- input.PrevSector() , input.PrevStrip(),
- detector , input.Ring(), input.Sector(),
- input.Strip()));
- fFMD->AddDigit(oldDetector,
- input.PrevRing(),
- input.PrevSector(),
- input.PrevStrip(),
- counts[0], counts[1], counts[2]);
-#if 0
- AliFMDDigit* digit =
- static_cast<AliFMDDigit*>(fFMD->Digits()->
- UncheckedAt(fFMD->GetNdigits()-1));
-#endif
+//____________________________________________________________________
+void
+AliFMDRawReader::AddError(Int_t ddl, Int_t hwaddr)
+{
+ Int_t nErr = fErrors.GetEntries();
+ TObject* o = new (fErrors[nErr]) TObject;
+ o->SetUniqueID((ddl & 0xFF) << 12 | (hwaddr & 0xFFF));
+}
+//____________________________________________________________________
+void
+AliFMDRawReader::ReadbackError(const AliAltroRawStreamV3& input,
+ const char* format, ...)
+{
+ static char buf[512];
+ va_list ap;
+ va_start(ap, format);
+ vsnprintf(buf, 511, format, ap);
+ buf[511] = '\0';
+ va_end(ap);
+
+ // { AliWarning(buf); }
+ if (AliDebugLevel() > 10) {
+ AliLog::Flush();
+ AliWarning(buf);
+ input.HexDumpChannel();
+ }
+
+ Int_t ddl = input.GetDDLNumber();
+ Int_t hwaddr = input.GetHWAddress();
+
+ fReader->AddMinorErrorLog(AliAltroRawStreamV3::kAltroPayloadErr,buf);
+ AddError(ddl, hwaddr);
+ fNErrors[ddl]++;
+}
+
+//____________________________________________________________________
+Int_t
+AliFMDRawReader::NewDDL(AliAltroRawStreamV3& input, UShort_t& det)
+{
+ // Process a new DDL. Sets the internal data members fZeroSuppress,
+ // fSampleRate, and fNoiseFactor based on information in the RCU trailer.
+ //
+ // Parameters:
+ // input Input stream
+ // det On return, the detector number
+ //
+ // Return value:
+ // negative value in case of problems, the DDL number otherwise
+
+ // Get the DDL number
+ UInt_t ddl = input.GetDDLNumber();
+ AliDebugF(2,"DDL number %d", ddl);
+
+ // Note, previously, the ALTROCFG1 register was interpreted as
+ //
+ // Bits Value Description
+ // 0- 3 0/1 1st Baseline filter, mode
+ // 4- 5 Over-1 2nd baseline filter, # of pre-samples
+ // 6- 9 factor 2nd baseline filter, # of post-samples
+ // 10- 0 2nd baseline filter, enable
+ // 11-12 00 Zero suppression, glitch filter mode
+ // 13-15 001 Zero suppression, # of post samples
+ // 16-17 01 Zero suppression, # of pre samples
+ // 18 0/1 Zero suppression, enable
+ //
+ // The interpretation used in AliAltroRawStreamerV3 - which
+ // corresponds directly to ALTRO DPCFG register - is
+ //
+ // Bits Value Description
+ // 0- 3 0/1 1st Baseline filter, mode
+ // 4 0 Polarity (if '1', then "1's inverse")
+ // 5- 6 01 Zero suppression, # of pre samples
+ // 7-10 0001 Zero suppression, # of post samples
+ // 11 0 2nd baseline filter, enable
+ // 12-13 00 Zero suppression, glitch filter mode
+ // 14-16 factor 2nd baseline filter, # of post-samples
+ // 17-18 01 2nd baseline filter, # of pre-samples
+ // 19 0/1 Zero suppression, enable
+ //
+ // From ALTRO DPCF2 we get
+ //
+ // 20-23 rate Pre-samples
+ //
+ // Writing 'x' for variable values, that means we have the
+ // following patterns for the 2 cases
+ //
+ // bit # 20 16 12 8 4 0
+ // old |0x01|0010|00xx|xxxx|xxxx|
+ // new |x01x|xx00|0000|1010|xxxx|
+ //
+ // That means that we can check if bits 10-13 are '1000' or
+ // '0000', which will tell us if the value was written with the
+ // new or the old interpretation. That is, we can check that
+ //
+ // if (((altrocfg1 >> 10) & 0x8) == 0x8) {
+ // // old interpretation
+ // }
+ // else {
+ // // New interpretation
+ // }
+ //
+ // That means, that we should never
+ //
+ // - change the # of zero suppression post samples
+ // - Turn on 2nd baseline correction
+ // - Change the zero-suppression glitch filter mode
+ //
+ // This change as introduced in version 1.2 of Rcu++
+ //
+ UInt_t cfg1 = input.GetAltroCFG1();
+ if (((cfg1 >> 10) & 0x8) == 0x8) {
+ UInt_t cfg2 = input.GetAltroCFG2();
+ AliDebugF(3,"We have data from older MiniConf 0x%x cfg2=0x%08x",
+ ((cfg1 >> 10) & 0x8), cfg2);
+ fZeroSuppress[ddl] = (cfg1 >> 0) & 0x1;
+ fNoiseFactor[ddl] = (cfg1 >> 6) & 0xF;
+ fSampleRate[ddl] = (cfg2 >> 20) & 0xF;
+ }
+ else {
+ AliDebugF(3,"We have data from newer MiniConf 0x%x",
+ ((cfg1 >> 10) & 0x8));
+ fZeroSuppress[ddl] = input.GetZeroSupp();
+ // WARNING: We store the noise factor in the 2nd baseline
+ // filters excluded post samples, since we'll never use that
+ // mode.
+ // fNoiseFactor[ddl] = input.GetNPostsamples();
+ fNoiseFactor[ddl] = input.GetNNonZSPostsamples();
+ // WARNING: We store the sample rate in the number of pre-trigger
+ // samples, since we'll never use that mode.
+ fSampleRate[ddl] = input.GetNPretriggerSamples();
+ //
+ }
+ AliDebugF(10,"Phase of DDL=%d is %g (%d)", ddl, input.GetL1Phase(),
+ input.GetAltroCFG2() & 0x1F);
+ fL1Phase[ddl] = input.GetAltroCFG2() & 0x1F; // input.GetL1Phase();
+ AliDebugF(3,"RCU @ DDL %d zero suppression: %s",
+ ddl, (fZeroSuppress[ddl] ? "yes" : "no"));
+ AliDebugF(3,"RCU @ DDL %d noise factor: %d", ddl,fNoiseFactor[ddl]);
+ AliDebugF(3,"RCU @ DDL %d sample rate: %d", ddl,fSampleRate[ddl]);
+
+
+ // Get Errors seen
+ Int_t nChAddrMismatch = input.GetNChAddrMismatch();
+ Int_t nChLenMismatch = input.GetNChLengthMismatch();
+ if (nChAddrMismatch != 0) {
+ ReadbackError(input,
+ "Got %d channels with address mis-matches for 0x%03x",
+ nChAddrMismatch, ddl);
+ fNErrAddress += nChAddrMismatch;
+ }
+ if (nChLenMismatch != 0) {
+ ReadbackError(input,
+ "Got %d channels with length mis-matches for 0x%03x",
+ nChLenMismatch, ddl);
+ fNErrChanLen += nChLenMismatch;
+ }
+
+ // Map DDL number to the detector number
+ AliFMDParameters* pars = AliFMDParameters::Instance();
+ AliFMDAltroMapping* map = pars->GetAltroMap();
+ if (map->DDL2Detector(ddl) < 0) return -1;
+ det = map->DDL2Detector(ddl);
+
+ if (AliLog::GetDebugLevel("FMD", 0) > 5)
+ input.PrintRCUTrailer();
+ return ddl;
+}
+
+//____________________________________________________________________
+Int_t
+AliFMDRawReader::NewChannel(const AliAltroRawStreamV3& input, UShort_t det,
+ Char_t& ring, UShort_t& sec, Short_t& strbase)
+{
+ // Processs a new channel. Sets the internal data members
+ // fMinStrip, fMaxStrip, and fPreSamp.
+ //
+ // Parameter:
+ // input Input stream
+ // ring On return, the ring identifier
+ // sec On return, the sector number
+ // strbase On return, the strip base
+ //
+ // Return value
+ // negative value in case of problems, hardware address otherwise
+
+ // Get the hardware address, and map that to detector coordinates
+ UShort_t board, chip, channel;
+ Int_t ddl = input.GetDDLNumber();
+ Int_t hwaddr = input.GetHWAddress();
+ if (input.IsChannelBad()) {
+ ReadbackError(input, "Ignoring channel %03d/0x%03x with errors",
+ ddl, hwaddr);
+ return 0xFFFF;
+ }
+
+ AliFMDParameters* pars = AliFMDParameters::Instance();
+ AliFMDAltroMapping* map = pars->GetAltroMap();
+ // Map to hardware stuff
+ map->ChannelAddress(hwaddr, board, chip, channel);
+ // Then try to map to detector address
+ if (!map->Channel2StripBase(board, chip, channel, ring, sec, strbase)) {
+ AliErrorF("Failed to get detector id from DDL %d, "
+ "hardware address 0x%03x", ddl, hwaddr);
+ return -1;
+ }
+ AliDebugF(7,"Board: 0x%02x, Altro: 0x%x, Channel: 0x%x",
+ board, chip, channel);
+
+ // Get the 'conditions'
+ fMinStrip = pars->GetMinStrip(det, ring, sec, strbase);
+ fMaxStrip = pars->GetMaxStrip(det, ring, sec, strbase);
+ fPreSamp = pars->GetPreSamples(det, ring, sec, strbase);
+ if (fSampleRate[ddl] == 0) {
+ AliDebugF(7,"Get sample rate for RCU @ DDL %d from OCDB", ddl);
+ fSampleRate[ddl] = pars->GetSampleRate(det, ring, sec, strbase);
+ }
+ AliDebugF(7,"RCU @ DDL %d sample rate: %d", ddl,fSampleRate[ddl]);
+
+ return hwaddr;
+}
+
+//____________________________________________________________________
+Bool_t
+AliFMDRawReader::NewBunch(const AliAltroRawStreamV3& input,
+ UShort_t& start, UShort_t& length)
+{
+ //
+ // Do some checks on the bunch data
+ //
+ Int_t ddl = input.GetDDLNumber();
+ Int_t hwaddr = input.GetHWAddress();
+ UShort_t nSamples = input.GetNSamplesPerCh() + fPreSamp;
+ UShort_t tstart = input.GetStartTimeBin();
+ length = input.GetBunchLength();
+
+ if (tstart >= nSamples) {
+ ReadbackError(input,
+ "Bunch in %03d/0x%03x has an start time greater "
+ "than number of samples: 0x%x >= 0x%x",
+ ddl, hwaddr, tstart, nSamples);
+ return false;
+ }
+ if ((int(tstart) - length + 1) < 0) {
+ ReadbackError(input,
+ "Bunch in %03d/0x%03x has an invalid length and "
+ "start time: 0x%x,0x%x (%d-%d+1=%d<0)",
+ ddl, hwaddr, length, tstart, tstart, length,
+ int(tstart)-length+1);
+ return false;
+ }
+ if (tstart >= start) {
+ ReadbackError(input,
+ "Bunch in %03d/0x%03x has early start time: "
+ "0x%x >= 0x%x", ddl, hwaddr, tstart, start);
+ return false;
+ }
+ start = tstart;
+ return true;
+}
+
+//____________________________________________________________________
+Int_t
+AliFMDRawReader::NewSample(const AliAltroRawStreamV3& input,
+ Int_t i, UShort_t t, UShort_t sec,
+ UShort_t strbase, Short_t& str, UShort_t& samp)
+{
+ // Process a new timebin
+ //
+ // Parameters:
+ // input Input stream
+ // i Index into bunch data
+ // t Time
+ // strbase Base of strip numbers for this channel
+ // str On return, the strip number
+ // samp On return, the sample number
+ //
+ // Return value
+ // negative value in case of problems, ADC value otherwise
+ if (t < fPreSamp) return -1;
+
+ Int_t ddl = input.GetDDLNumber();
+ Int_t hwa = input.GetHWAddress();
+ const UShort_t* data = input.GetSignals();
+ Short_t adc = data[i];
+ AliDebugF(10,"0x%04x/0x%03x/%04d %4d", ddl, hwa, t, adc);
+
+ AliFMDParameters* pars = AliFMDParameters::Instance();
+ AliFMDAltroMapping* map = pars->GetAltroMap();
+
+ samp = 0;
+ Short_t stroff = 0;
+ map->Timebin2Strip(sec, t, fPreSamp, fSampleRate[ddl], stroff, samp);
+ str = strbase + stroff;
+
+ AliDebugF(20,"0x%04x/0x%03x/%04d=%4d maps to strip %3d sample %d "
+ "(pre: %d, min: %d, max: %d, rate: %d)",
+ ddl, hwa, t, adc, str, samp, fPreSamp,
+ fMinStrip, fMaxStrip, fSampleRate[ddl]);
+ if (str < 0) {
+ AliDebugF(10,"Got presamples at timebin %d", i);
+ return -1;
+ }
+
+ // VA1 Local strip number
+ Short_t lstrip = (t - fPreSamp) / fSampleRate[ddl] + fMinStrip;
+
+ AliDebugF(15,"Checking if strip %d (%d) in range [%d,%d]",
+ lstrip, str, fMinStrip, fMaxStrip);
+ if (lstrip < fMinStrip || lstrip > fMaxStrip) {
+ AliDebugF(10,"Strip %03d-%d (%d,%d) from t=%d out of range (%3d->%3d)",
+ str, samp, lstrip, stroff, t, fMinStrip, fMaxStrip);
+ adc = -1;
+ }
+ // Possibly do pedestal subtraction of signal
+ if (adc > 1023)
+ AliWarningF("ADC value out of range: %4d", adc);
+ return adc;
+}
+
+//____________________________________________________________________
+Int_t
+AliFMDRawReader::NextSample(UShort_t& det, Char_t& rng, UShort_t& sec,
+ UShort_t& str, UShort_t& sam, UShort_t& rat,
+ Short_t& adc, Bool_t& zs, UShort_t& fac)
+{
+ // Scan current event for next signal. It returns kFALSE when
+ // there's no more data in the event.
+ //
+ // Note, that this member function is in principle very fast, but
+ // contains less error checking. In particular, channels that have
+ // bad bunches cannot be checked here. Seeing a bad bunch will only
+ // skip the remainder of the channel and not reset the already read
+ // digits. This is potentially dangerous.
+ //
+ // Parameters:
+ // det On return, contain the detector number
+ // rng On return, contain the ring identifier
+ // sec On return, contain the sector number
+ // str On return, contain the strip number
+ // sam On return, contain the sample number
+ // rat On return, contain the sample rate
+ // adc On return, contain the ADC counts
+ // zs On return, contain the zero-supp. flag
+ // fac On return, contain the zero-supp. noise factor
+ //
+ // Return values:
+ // 0 No more data
+ // -1 Read sample belongs to a bad bunch
+ // >0 Good status - contains bit mask of values
+ // Bit 1 New DDL
+ // Bit 2 New Channel
+ // Bit 3 New Bunch
+ // Bit 4 New Sample
+ static AliAltroRawStreamV3 stream(fReader); // = 0;
+ static Int_t ddl = -1;
+ static UShort_t tdet = 0;
+ static Char_t trng = '\0';
+ static UShort_t tsec = 0;
+ static Short_t tstr = 0;
+ static Short_t bstr = -1;
+ static UShort_t tsam = 0;
+ // static UInt_t trate = 0;
+ static Int_t hwaddr = -1;
+ static UShort_t start = 0;
+ static UShort_t length = 0;
+ static Short_t t = -1;
+ static Int_t i = 0;
+ // First entry!
+ if (stream.GetDDLNumber() < 0) {
+ fReader->Reset();
+ fReader->Select("FMD");
+ stream.Reset();
+ stream.SelectRawData("FMD");
+ stream.SetCheckAltroPayload(false);
+ for (Int_t j = 0; j < kNDDL; j++) fNErrors[j] = 0;
+
+ // Reset variables
+ ddl = -1;
+ // trate= 0;
+ tdet = 0;
+ trng = '\0';
+ tsec = 0;
+ tstr = 0;
+ tsam = -1;
+ hwaddr = -1;
+ }
+
+ UShort_t ret = 0;
+ do {
+ AliDebugF(15, "t=%4d, start=%4d, length=%4d", t, start, length);
+ if (t < start - length + 1) {
+ AliDebugF(10,"Time t=%d < start-length+1=%d-%d+1 (%3d/0x%03x)",
+ t, start, length, ddl, hwaddr);
+ if (hwaddr > 0xFFF ||
+ hwaddr < 0 ||
+ !stream.NextBunch()) {
+ if (AliDebugLevel() >= 10 && hwaddr > 0xFFF) {
+ AliDebug(10,"Last channel read was marked bad");
+ }
+ if (AliDebugLevel() >= 10 && hwaddr < 0) {
+ AliDebug(10,"No more channels");
+ }
+ AliDebug(10,"No next bunch, or first entry");
+ if (ddl < 0 || !stream.NextChannel()) {
+ if (AliDebugLevel() >= 10 && ddl < 0) {
+ AliDebug(10,"No DDL");
+ }
+ AliDebug(10,"No next channel, or first entry");
+ if (!stream.NextDDL()) {
+ AliDebug(10,"No more DDLs");
+ stream.Reset();
+ return 0;
+ }
+ ddl = NewDDL(stream, tdet);
+ AliDebugF(5,"New DDL: %d (%d)", ddl, tdet);
+ ret |= 0x1;
+ continue;
+ }
+ hwaddr = NewChannel(stream, tdet, trng, tsec, bstr);
+ if (hwaddr > 0xFFF) fNErrors[ddl] += 1;
+ AliDebugF(5,"New Channel: %3d/0x%03x", ddl, hwaddr);
+ start = 1024;
+ ret |= 0x2;
+ continue;
}
-
- if (!next) {
- AliDebug(10, Form("Read %d channels for FMD%d",
- count + 1, detector));
- break;
+ if (!NewBunch(stream, start, length)) {
+ // AliWarning(Form("Bad bunch in %3d/0x%03x read - "
+ // "should progress to next channel "
+ // "(t=%4d,start=%4d,length=%4d)",
+ // ddl, hwaddr, t,start, length));
+ hwaddr = 0xFFFF; // Bad channel
+ return -1;
}
-
-
- // If we got a new DDL, it means we have a new detector.
- if (ddl != oldDDL) {
- if (detector != 0)
- AliDebug(10, Form("Read %d channels for FMD%d",
- count + 1, detector));
- // Reset counts, and update the DDL cache
- count = 0;
- oldDDL = ddl;
- // Check that we're processing a FMD detector
- Int_t detId = fReader->GetDetectorID();
- if (detId != (AliFMD::kBaseDDL >> 8)) {
- Error("ReadAdcs", "Detector ID %d != %d",
- detId, (AliFMD::kBaseDDL >> 8));
+ AliDebugF(5, "New bunch in %3d/0x%03x: start=0x%03x, length=%4d",
+ ddl, hwaddr, start, length);
+ ret |= 0x4;
+ t = start;
+ i = 0;
+ AliDebugF(10,"Got new bunch FMD%d%c[%2d], bunch @ %d, length=%d",
+ tdet, trng, tsec, start, length);
+ }
+ Int_t tadc = NewSample(stream, i, t, tsec, bstr, tstr, tsam);
+ AliDebugF(10,"New sample FMD%d%c[%2d,%3d]-%d = 0x%03x",
+ tdet, trng, tsec, tstr, tsam, tadc);
+ ret |= 0x8;
+ if (tadc >= 0) {
+ det = tdet;
+ rng = trng;
+ sec = tsec;
+ str = tstr;
+ sam = tsam;
+ adc = tadc;
+ rat = fSampleRate[ddl];
+ zs = fZeroSuppress[ddl];
+ fac = fNoiseFactor[ddl];
+ t--;
+ i++;
+ AliDebugF(10,"Returning FMD%d%c[%2d,%3d]-%d = 0x%03x (%d,%d,%d)",
+ det, rng, sec, str, sam, adc, rat, zs, fac);
+ break;
+ }
+ t--;
+ i++;
+ } while (true);
+ AliDebugF(5,"Returning 0x%02x", ret);
+ return ret;
+}
+
+
+//____________________________________________________________________
+Int_t
+AliFMDRawReader::NextSignal(UShort_t& det, Char_t& rng,
+ UShort_t& sec, UShort_t& str,
+ Short_t& adc, Bool_t& zs,
+ UShort_t& fac)
+{
+ //
+ // Get the next signal
+ //
+ // Parameters:
+ // det On return, the detector
+ // rng On return, the ring
+ // sec On return, the sector
+ // str On return, the strip
+ // adc On return, the ADC value
+ // zs On return, whether zero-supp. is enabled
+ // fac On return, the usd noise factor
+ //
+ // Return:
+ // true if valid data is returned
+ //
+ Int_t ret = 0;
+ do {
+ UShort_t samp, rate;
+ if ((ret = NextSample(det, rng, sec, str, samp, rate, adc, zs, fac)) <= 0)
+ return ret;
+
+ Bool_t take = SelectSample(samp, rate);
+ if (!take) continue;
+ break;
+ } while (true);
+ return ret;
+}
+
+//____________________________________________________________________
+Bool_t
+AliFMDRawReader::SelectSample(UShort_t samp, UShort_t rate)
+{
+ // Check if the passed sample is the one we need
+ Bool_t take = kFALSE;
+ switch (rate) {
+ case 1: take = kTRUE; break;
+ case 2: if (samp == 1) take = kTRUE; break;
+ case 3: if (samp == 1) take = kTRUE; break;
+ case 4: if (samp == 2) take = kTRUE; break;
+ default: if (samp == rate-2) take = kTRUE; break;
+ }
+
+ return take;
+}
+
+//____________________________________________________________________
+Bool_t
+AliFMDRawReader::ReadAdcs(TClonesArray* array)
+{
+ // Read ADC values from raw input into passed TClonesArray of AliFMDDigit
+ // objects.
+ AliDebug(3,"Reading ADC values into a TClonesArray");
+
+ // Read raw data into the digits array, using AliFMDAltroReader.
+ if (!array) {
+ AliError("No TClonesArray passed");
+ return kFALSE;
+ }
+ // static ULong_t unique = 0;
+ const UShort_t kUShortMax = (1 << 16) - 1;
+ fSeen.Reset(kUShortMax);
+ fErrors.Clear();
+ fNErrChanLen = 0;
+ fNErrAddress = 0;
+ for (Int_t ddl = 0; ddl < kNDDL; ddl++) fNErrors[ddl] = 0;
+
+ AliAltroRawStreamV3 input(fReader);
+ input.Reset();
+ input.SetCheckAltroPayload(false);
+ input.SelectRawData("FMD");
+
+ // Loop over input RORCs
+ while (input.NextDDL()) {
+ UShort_t det = 0;
+ Int_t ddl = NewDDL(input, det);
+ if (ddl < 0) break;
+ fNErrors[ddl] = 0;
+
+ while (input.NextChannel()) {
+ // Get the hardware address, and map that to detector coordinates
+ Char_t ring;
+ UShort_t sec;
+ Short_t strbase;
+ Int_t hwaddr = NewChannel(input, det, ring, sec, strbase);
+ if (hwaddr < 0) break;
+ if (hwaddr > 0xFFF) continue;
+
+ UShort_t start = 0x3FF;
+ Bool_t errors = false;
+ Int_t first = -1;
+ Int_t last = -1;
+ // Loop over bunches
+ while (input.NextBunch()) {
+ // Get Lenght of bunch, and pointer to the data
+ const UShort_t* data = input.GetSignals();
+ UShort_t length;
+ if (!NewBunch(input, start, length)) {
+ errors = true;
break;
}
- // Figure out what detector we're deling with
- oldDetector = detector;
- switch (ddl) {
- case 0: detector = 1; break;
- case 1: detector = 2; break;
- case 2: detector = 3; break;
- default:
- Error("ReadAdcs", "Unknown DDL 0x%x for FMD", ddl);
- return;
+
+
+ // Loop over the data and store it.
+ for (Int_t i = 0; i < length; i++) {
+ // Time
+ Short_t str;
+ UShort_t samp;
+ Int_t t = start - i;
+ Int_t adc = NewSample(input, i, t, sec, strbase, str, samp);
+ if (adc <= 0) continue;
+ UShort_t counts = adc;
+
+ AliDebugF(10,"FMD%d%c[%02d,%03d]-%d: %4d",
+ det, ring, sec, str, samp, counts);
+ // Check the cache of indicies
+ Int_t idx = fSeen(det, ring, sec, str);
+ AliFMDDigit* digit = 0;
+ if (idx == kUShortMax) {
+ // We haven't seen this strip yet.
+ fSeen(det, ring, sec, str) = idx = array->GetEntriesFast();
+ AliDebugF(7, "making digit @ %5d for FMD%d%c[%2d,%3d]-%d "
+ "from %3d/0x%03x/%4d (def: %d)",
+ idx, det, ring, sec, str, samp, ddl, hwaddr, t,
+ fSampleRate[ddl]);
+ digit = new ((*array)[idx]) AliFMDDigit(det, ring, sec, str);
+ digit->SetDefaultCounts(fSampleRate[ddl]);
+ }
+ else {
+ digit = static_cast<AliFMDDigit*>(array->At(idx));
+ }
+ if (first < 0) first = idx;
+ last = idx;
+ AliDebugF(5,"Setting FMD%d%c[%2d,%3d]-%d from timebin "
+ "%4d=%4d (%4d)", det, ring, sec, str, samp, t,
+ counts, data[i]);
+ digit->SetCount(samp, counts);
+ if (AliLog::GetDebugLevel("FMD","") >= 5) digit->Print();
+ } // for (i)
+ } // while (bunch)
+ if (errors) {
+ AliDebugF(2,"Channel %3d/0x%03x contain errors, "
+ "resetting index %d to %d", ddl, hwaddr, first, last);
+ if (first >= 0) {
+ for (Int_t i = first; i <= last; i++) {
+ AliFMDDigit* digit = static_cast<AliFMDDigit*>(array->At(i));
+ for (Int_t j = 0; j < fSampleRate[ddl]; j++) {
+ AliDebugF(10,"Resetting strip %s=%d",
+ digit->GetName(),digit->Counts());
+ digit->SetCount(j, kBadSignal);
+ }
+ }
}
- AliDebug(10, Form("Reading ADCs for 0x%x - That is FMD%d",
- fReader->GetEquipmentId(), detector));
}
- counts.Reset(-1);
+ // if (errors && (AliDebugLevel() > 0)) input.HexDumpChannel();
+ } // while (channel)
+ } // while (ddl)
+ if (fNErrors[0] > 0 || fNErrors[1] > 0 || fNErrors[2] > 0 ||
+ fNErrChanLen > 0 || fNErrAddress > 0) {
+ // AliLog::Flush();
+ AliLog::SetPrintRepetitions(false);
+ AliWarningF("R/O errors: FMD1=%d, FMD2=%d, FMD3=%d, "
+ "Channel Length=%d, address=%d",
+ fNErrors[0], fNErrors[1], fNErrors[2],
+ fNErrChanLen, fNErrAddress);
+ AliLog::SetPrintRepetitions(true);
+ }
+ if (fVerbose && fErrors.GetEntries() > 0) {
+ TString msg;
+ Int_t nErr = fErrors.GetEntries();
+ for (Int_t i = 0; i < nErr; i++) {
+ UInt_t where = fErrors.At(i)->GetUniqueID();
+ if (i % 6 == 0) msg.Append("\n");
+ msg.Append(Form(" %3d/0x%03x", (where >> 12) & 0xFF, (where & 0xFFF)));
}
+ // AliLog::Flush();
+ AliLog::SetPrintRepetitions(false);
+ AliWarningF("Got %d errors in channels %s", nErr, msg.Data());
+ AliLog::SetPrintRepetitions(true);
+ }
+ return kTRUE;
+}
+//____________________________________________________________________
+Bool_t
+AliFMDRawReader::ReadAdcs(AliFMDUShortMap& map)
+{
+ // Read ADC values from raw input into passed TClonesArray of AliFMDDigit
+ // objects.
+ AliDebug(3,"Reading ADC values into a map");
+
+ // const UShort_t kUShortMax = (1 << 16) - 1;
+ for (Int_t ddl = 0; ddl < kNDDL; ddl++) fNErrors[ddl] = 0;
+
+ AliAltroRawStreamV3 input(fReader);
+ input.Reset();
+ input.SetCheckAltroPayload(false);
+ input.SelectRawData("FMD");
+
+ // Loop over input RORCs
+ while (input.NextDDL()) {
+ UShort_t det = 0;
+ Int_t ddl = NewDDL(input, det);
+ if (ddl < 0) break;
+ fNErrors[ddl] = 0;
+
+ while (input.NextChannel()) {
+ // Get the hardware address, and map that to detector coordinates
+ Char_t ring;
+ UShort_t sec;
+ Short_t strbase;
+ Int_t hwaddr = NewChannel(input, det, ring, sec, strbase);
+ if (hwaddr < 0) break;
+ if (hwaddr > 0xFFF) continue;
+
+ UShort_t start = 0x3FF;
+ Bool_t errors = false;
+ Int_t first = -1;
+ Int_t last = -1;
+ // Loop over bunches
+ while (input.NextBunch()) {
+ // Get Lenght of bunch, and pointer to the data
+ // const UShort_t* data = input.GetSignals();
+ UShort_t length;
+ if (!NewBunch(input, start, length)) {
+ errors = true;
+ break;
+ }
+
+
+ // Loop over the data and store it.
+ for (Int_t i = 0; i < length; i++) {
+ // Time
+ Short_t str;
+ UShort_t samp;
+ Int_t t = start - i;
+ Int_t adc = NewSample(input, i, t, sec, strbase, str, samp);
+ if (adc < 0) continue;
+ UShort_t counts = adc;
+
+ AliDebugF(10, "FMD%d%c[%02d,%03d]-%d: %4d",
+ det, ring, sec, str, samp, counts);
+ if (SelectSample(samp, fSampleRate[ddl]))
+ map(det,ring,sec,str) = counts;
+ if (first < 0) first = str;
+ last = str;
+ } // for (i)
+ } // while (bunch)
+ if (errors) {
+ AliDebugF(2, "Channel %3d/0x%03x contain errors, "
+ "resetting strips %d to %d", ddl, hwaddr, first, last);
+ if (first >= 0) {
+ Int_t ds = first <= last ? 1 : -1;
+ for (Int_t i = first; i != last+ds; i += ds) {
+ AliDebugF(10, "Resetting strip FMD%d%c[%02d,%03d]=%d",
+ det,ring,sec,i,map(det,ring,sec,i));
+ map(det,ring,sec,i) = kBadSignal;
+ }
+ }
+ }
+ } // while (channel)
+ } // while (ddl)
+ return kTRUE;
+}
+
+//____________________________________________________________________
+Bool_t AliFMDRawReader::ReadSODevent(AliFMDCalibSampleRate* sampleRate,
+ AliFMDCalibStripRange* stripRange,
+ TArrayS &pulseSize,
+ TArrayS &pulseLength,
+ Bool_t* detectors)
+{
+ //
+ // Read SOD event into passed objects.
+ //
+ // Parameters:
+ // samplerate The sample rate object to fill
+ // striprange The strip range object to fill
+ // pulseSize The pulse size object to fill
+ // pulseLength The pulse length (in events) object to fill
+ //
+ // Return:
+ // @c true on success
+ //
+ AliDebug(0,"Start of SOD/EOD");
+
+ UInt_t shift_clk[18];
+ UInt_t sample_clk[18];
+ UInt_t strip_low[18];
+ UInt_t strip_high[18];
+ UInt_t pulse_size[18];
+ UInt_t pulse_length[18];
+ for (size_t i = 0; i < 18; i++) {
+ shift_clk[i] = 0;
+ sample_clk[i] = 0;
+ strip_low[i] = 0;
+ strip_high[i] = 0;
+ pulse_size[i] = 0;
+ pulse_length[i] = 0;
+ }
+ AliFMDParameters* param = AliFMDParameters::Instance();
+ AliFMDAltroMapping* map = param->GetAltroMap();
+
+ AliAltroRawStreamV3 streamer(fReader);
+ streamer.Reset();
+ streamer.SelectRawData("FMD");
+ //fReader->GetDDLID();
+ while (streamer.NextDDL()) {
+ Int_t ddl = streamer.GetDDLNumber();
+ Int_t detID = fReader->GetDetectorID();
+ if (detectors) detectors[map->DDL2Detector(ddl)-1] = kTRUE;
+ AliDebugF(0," From reader: DDL number is %d , det ID is %d",ddl,detID);
- counts[input.Sample()] = input.Count();
+ ULong_t nPayloadWords = streamer.GetRCUPayloadSizeInSOD();
+ UChar_t* payloadData = streamer.GetRCUPayloadInSOD();
+ UInt_t* payloadWords = reinterpret_cast<UInt_t*>(payloadData);
+ //UInt_t* payloadWords = streamer.GetRCUPayloadInSOD();
+
+ //std::cout<<nPayloadWords<<" "<<ddl<<std::endl;
+ for (ULong_t i = 1; i <= nPayloadWords ; i++, payloadWords++) {
+ UInt_t payloadWord = *payloadWords; // Get32bitWord(i);
- AliDebug(10, Form("ADC of FMD%d%c[%2d,%3d] += %d",
- detector, input.Ring(), input.Sector(),
- input.Strip(), input.Count()));
- oldDetector = detector;
+ //std::cout<<i<<Form(" word: 0x%x",payloadWord)<<std::endl;
+ // address is only 24 bit
+ UInt_t address = (0xffffff & payloadWord);
+ UInt_t type = ((address >> 21) & 0xf);
+ UInt_t error = ((address >> 20) & 0x1);
+ UInt_t bcast = ((address >> 18) & 0x1);
+ UInt_t bc_not_altro = ((address >> 17) & 0x1);
+ UInt_t board = ((address >> 12) & 0x1f);
+ UInt_t instruction = 0;
+ UInt_t chip = 0;
+ UInt_t channel = 0;
+ if(bc_not_altro)
+ instruction = address & 0xfff;
+ else {
+ chip = ((address >> 9) & 0x7);
+ channel = ((address >> 5) & 0x5);
+ instruction = (address & 0x1f);
+ }
+
+ Bool_t readDataWord = kFALSE;
+ switch(type) {
+ case 0x0: // Fec read
+ readDataWord = kTRUE;
+ case 0x1: // Fec cmd
+ case 0x2: // Fec write
+ i++;
+ payloadWords++;
+ break;
+ case 0x4: // Loop
+ case 0x5: // Wait
+ break;
+ case 0x6: // End sequence
+ case 0x7: // End Mem
+ i = nPayloadWords + 1;
+ break;
+ default:
+ break;
+ }
+
+ //Don't read unless we have a FEC_RD
+ if(!readDataWord) continue;
+
+ UInt_t dataWord = *payloadWords;//Get32bitWord(i);
+ UInt_t data = (0xFFFFF & dataWord) ;
+ //UInt_t data = (0xFFFF & dataWord) ;
+
+ if(error) {
+ AliWarningF("error bit detected at Word 0x%06x; "
+ "error % d, type %d, bc_not_altro %d, "
+ "bcast %d, board 0x%02x, chip 0x%x, "
+ "channel 0x%02x, instruction 0x%03x",
+ address, error, type, bc_not_altro,
+ bcast,board,chip,channel,instruction);
+ //process error
+ continue;
+ }
+
+
+ switch(instruction) {
+
+ case 0x01: break; // First ADC T
+ case 0x02: break; // I 3.3 V
+ case 0x03: break; // I 2.5 V altro digital
+ case 0x04: break; // I 2.5 V altro analog
+ case 0x05: break; // I 2.5 V VA
+ case 0x06: break; // First ADC T
+ case 0x07: break; // I 3.3 V
+ case 0x08: break; // I 2.5 V altro digital
+ case 0x09: break; // I 2.5 V altro analog
+ case 0x0A: break; // I 2.5 V VA
+ case 0x2D: break; // Second ADC T
+ case 0x2E: break; // I 1.5 V VA
+ case 0x2F: break; // I -2.0 V
+ case 0x30: break; // I -2.0 V VA
+ case 0x31: break; // 2.5 V Digital driver
+ case 0x32: break; // Second ADC T
+ case 0x33: break; // I 1.5 V VA
+ case 0x34: break; // I -2.0 V
+ case 0x35: break; // I -2.0 V VA
+ case 0x36: break; // 2.5 V Digital driver
+ case 0x37: break; // Third ADC T
+ case 0x38: break; // Temperature sens. 1
+ case 0x39: break; // Temperature sens. 2
+ case 0x3A: break; // U 2.5 altro digital (m)
+ case 0x3B: break; // U 2.5 altro analog (m)
+ case 0x3C: break; // Third ADC T
+ case 0x3D: break; // Temperature sens. 1
+ case 0x3E: break; // Temperature sens. 2
+ case 0x3F: break; // U 2.5 altro digital (m)
+ case 0x40: break; // U 2.5 altro analog (m)
+ case 0x41: break; // Forth ADC T
+ case 0x42: break; // U 2.5 VA (m)
+ case 0x43: break; // U 1.5 VA (m)
+ case 0x44: break; // U -2.0 VA (m)
+ case 0x45: break; // U -2.0 (m)
+ case 0x46: break; // Forth ADC T
+ case 0x47: break; // U 2.5 VA (m)
+ case 0x48: break; // U 1.5 VA (m)
+ case 0x49: break; // U -2.0 VA (m)
+ case 0x4A: break; // U -2.0 (m)
+ // Counters
+ case 0x0B: break; // L1 trigger CouNTer
+ case 0x0C: break; // L2 trigger CouNTer
+ case 0x0D: break; // Sampling CLK CouNTer
+ case 0x0E: break; // DSTB CouNTer
+ // Test mode
+ case 0x0F: break; // Test mode word
+ case 0x10: break; // Undersampling ratio.
+ // Configuration and status
+ case 0x11: break; // Config/Status Register 0
+ case 0x12: break; // Config/Status Register 1
+ case 0x13: break; // Config/Status Register 2
+ case 0x14: break; // Config/Status Register 3
+ case 0x15: break; // Free
+ // Comands:
+ case 0x16: break; // Latch L1, L2, SCLK Counters
+ case 0x17: break; // Clear counters
+ case 0x18: break; // Clear CSR1
+ case 0x19: break; // rstb ALTROs
+ case 0x1A: break; // rstb BC
+ case 0x1B: break; // Start conversion
+ case 0x1C: break; // Scan event length
+ case 0x1D: break; // Read event length
+ case 0x1E: break; // Start test mode
+ case 0x1F: break; // Read acquisition memory
+ // FMD
+ case 0x20: break; // FMDD status
+ case 0x21: break; // L0 counters
+ case 0x22: break; // FMD: Wait to hold
+ case 0x23: break; // FMD: L1 timeout
+ case 0x24: break; // FMD: L2 timeout
+ case 0x25: // FMD: Shift clk
+ shift_clk[board] = ((data >> 8 ) & 0xFF);
+ AliDebugF(30, "Read shift_clk=%d for board 0x%02x",
+ shift_clk[board], board);
+ break;
+ case 0x26: // FMD: Strips
+ strip_low[board] = ((data >> 0 ) & 0xFF);
+ strip_high[board] = ((data >> 8 ) & 0xFF);
+ break;
+ case 0x27: // FMD: Cal pulse
+ pulse_size[board] = ((data >> 8 ) & 0xFF);
+ break;
+ case 0x28: break; // FMD: Shape bias
+ case 0x29: break; // FMD: Shape ref
+ case 0x2A: break; // FMD: Preamp ref
+ case 0x2B: // FMD: Sample clk
+ sample_clk[board] = ((data >> 8 ) & 0xFF);
+ AliDebugF(30,"Read sample_clk=%d for board 0x%02x",
+ sample_clk[board], board);
+ break;
+ case 0x2C: break; // FMD: Commands
+ case 0x4B: // FMD: Cal events
+ pulse_length[board] = ((data >> 0 ) & 0xFF);
+ break;
+ default: break;
+
+ }
+ AliDebugF(50,"instruction 0x%x, dataword 0x%x",
+ instruction,dataWord);
+ } // End of loop over Result memory event
+
+ UShort_t det = 0;
+ UShort_t sector = 0;
+ Short_t strip = -1;
+ Char_t ring = '\0';
+
+ const UInt_t boards[4] = {0,1,16,17};
+ for(Int_t i=0;i<4;i++) {
+ if(ddl==0 && (i==1 || i==3)) continue;
+
+ UInt_t chip =0, channel=0;
+ det = map->DDL2Detector(ddl);
+ map->Channel2StripBase(boards[i], chip, channel, ring, sector, strip);
+
+ UInt_t samplerate = 0;
+#if USE_VOTE
+ if(sample_clk[boards[i]] == 0) {
+ if(ddl == 0) {
+ Int_t sample1 = sample_clk[boards[0]];
+ Int_t sample2 = sample_clk[boards[2]];
+ if(sample1) sample_clk[boards[i]] = sample1;
+ else sample_clk[boards[i]] = sample2;
+ }
+ else {
+ Int_t sample1 = sample_clk[boards[0]];
+ Int_t sample2 = sample_clk[boards[1]];
+ Int_t sample3 = sample_clk[boards[2]];
+ Int_t sample4 = sample_clk[boards[3]];
+ Int_t agreement = 0;
+ if(sample1 == sample2) agreement++;
+ if(sample1 == sample3) agreement++;
+ if(sample1 == sample4) agreement++;
+ if(sample2 == sample3) agreement++;
+ if(sample2 == sample4) agreement++;
+ if(sample3 == sample4) agreement++;
+
+ Int_t idx = 0;
+ if(i<3) idx = i+1;
+ else idx = i-1;
+ if(agreement == 3) {
+ sample_clk[boards[i]] = sample_clk[boards[idx]];
+ shift_clk[boards[i]] = shift_clk[boards[idx]];
+ strip_low[boards[i]] = strip_low[boards[idx]];
+ strip_high[boards[i]] = strip_high[boards[idx]];
+ pulse_length[boards[i]] = pulse_length[boards[idx]];
+ pulse_size[boards[i]] = pulse_size[boards[idx]];
+ AliDebugF(3,"Vote taken for ddl %d, board 0x%x",
+ ddl,boards[i]);
+ }
+ }
+ }
+#endif
+
+ if(sample_clk[boards[i]])
+ samplerate = shift_clk[boards[i]]/sample_clk[boards[i]];
+ AliDebugF(10,"Sample rate for board 0x%02x is %d",
+ boards[i], samplerate);
+ sampleRate->Set(det,ring,sector,0,samplerate);
+ stripRange->Set(det,ring,sector,0,
+ strip_low[boards[i]],strip_high[boards[i]]);
+
+ AliDebugF(20,"det %d, ring %c, ",det,ring);
+ pulseLength.AddAt(pulse_length[boards[i]],
+ GetHalfringIndex(det,ring,boards[i]/16));
+ pulseSize.AddAt(pulse_size[boards[i]],
+ GetHalfringIndex(det,ring,boards[i]/16));
+
+
+
+ AliDebugF(20,": Board: 0x%02x\n"
+ "\tstrip_low %3d, strip_high %3d\n"
+ "\tshift_clk %3d, sample_clk %3d\n"
+ "\tpulse_size %3d, pulse_length %3d",
+ boards[i],
+ strip_low[boards[i]], strip_high[boards[i]],
+ shift_clk[boards[i]], sample_clk[boards[i]],
+ pulse_size[boards[i]],pulse_length[boards[i]]);
+ }
+
+ }
+
+ AliFMDParameters::Instance()->SetSampleRate(sampleRate);
+ AliFMDParameters::Instance()->SetStripRange(stripRange);
+
+ AliDebug(0,"End of SOD/EOD");
+
+ return kTRUE;
+}
+//____________________________________________________________________
+
+UInt_t AliFMDRawReader::Get32bitWord(Int_t idx)
+{
+ // 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) {
+ AliFatal("Raw data paylod buffer is not yet initialized !");
}
- return;
+ Int_t index = 4*idx;
+
+ if (index < 4) {
+ // fRawReader->AddFatalErrorLog(k32bitWordReadErr,Form("pos = %d",index));
+ // PrintDebug();
+ AliWarningF("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] << 0 ;
+
+ return word;
+}
+//_____________________________________________________________________
+Int_t AliFMDRawReader::GetHalfringIndex(UShort_t det, Char_t ring,
+ UShort_t board) const
+{
+ //
+ // Get short index for a given half-ring
+ //
+ // Parameters:
+ // det Detector number
+ // ring Ring identifer
+ // board Board number
+ //
+ // Return:
+ //
+ //
+ UShort_t iring = (ring == 'I' ? 1 : 0);
+
+ Int_t index = (((det-1) << 2) | (iring << 1) | (board << 0));
+
+ return index-2;
+
}
//____________________________________________________________________
//
// EOF
//
+