* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
/* $Id$ */
-
+/** @file AliFMDRawWriter.cxx
+ @author Christian Holm Christensen <cholm@nbi.dk>
+ @date Mon Mar 27 12:45:56 2006
+ @brief Class to write raw data
+*/
//____________________________________________________________________
//
// Class to write ADC values to a raw data file
//
-#include "AliLog.h" // ALILOG_H
+// This class writes FMD Raw data to a file. The sample rate (number
+// of times the ALTRO ADC samples each pre-amp. channel - that is,
+// data from a single strip), can be set via SetSampleRate.
+//
+// Zero-suppression can be enabled by calling SetThreshold with a
+// non-zero argument. ADC values less than the value set will not be
+// written to output. Note, that if you use zero-suppression, you
+// need to explicitly set the sample rate when reading back the data
+// with AliFMDRawReader.
+//
+// This class uses the AliAltroBuffer class to write the data in the
+// ALTRO format. See the Exec member function for more information on
+// that format.
+//
+// #include <AliLog.h> // ALILOG_H
+#include "AliFMDDebug.h" // Better debug macros
+#include <AliLoader.h> // ALILOADER_H
+#include <AliAltroBuffer.h> // ALIALTROBUFFER_H
#include "AliFMD.h" // ALIFMD_H
+#include "AliFMDParameters.h" // ALIFMDPARAMETERS_H
#include "AliFMDDigit.h" // ALIFMDDIGIT_H
#include "AliFMDRawWriter.h" // ALIFMDRAWREADER_H
-#include "AliAltroBuffer.h" // ALIALTROBUFFER_H
-#include "AliLoader.h" // ALILOADER_H
-#include "TArrayI.h" // ROOT_TArrayI
+#include "AliFMDAltroMapping.h" // ALIFMDALTROMAPPING_H
+// #include "AliFMDAltroIO.h" // ALIFMDALTROWRITER_H
+#include <TArrayI.h> // ROOT_TArrayI
#include <TClonesArray.h> // ROOT_TClonesArray
+// #include <fstream>
+#include "AliDAQ.h"
//____________________________________________________________________
-ClassImp(AliFMDRawWriter);
+ClassImp(AliFMDRawWriter)
+#if 0
+ ; // This is here to keep Emacs for indenting the next line
+#endif
//____________________________________________________________________
AliFMDRawWriter::AliFMDRawWriter(AliFMD* fmd)
: TTask("FMDRawWriter", "Writer of Raw ADC values from the FMD"),
- fFMD(fmd)
+ fFMD(fmd),
+ fSampleRate(0),
+ fChannelsPerAltro(0),
+ fThreshold(0)
{
- SetSampleRate();
+ // CTOR
}
+
//____________________________________________________________________
void
AliFMDRawWriter::Exec(Option_t*)
// 10-bit word, and the samples are grouped into 40-bit blocks
//
// +------------------------------------+
- // | S(n) | S(n-1) | S(n-2) | S(n-3) |
+ // | S(1) | S(2) | S(3) | S(4) |
// | ... | ... | ... | ... |
- // | S(2) | S(1) | AA | AA |
+ // | S(n) | T(n) | n+2 | 2AA |
// +------------------------------------+
// Counts + possible filler
//
// words, packed into 40-bits.
//
// +------------------------------------+
- // | # words | start | sector | ring |
+ // | 2AAA | Len | A | Address |
// +------------------------------------+
// Trailer
//
digitBranch->SetAddress(&digits);
Int_t nEvents = Int_t(digitTree->GetEntries());
+ AliFMDDebug(5, ("Got a total of %5d events from tree", nEvents));
for (Int_t event = 0; event < nEvents; event++) {
fFMD->ResetDigits();
digitTree->GetEvent(event);
- Int_t nDigits = digits->GetEntries();
- if (nDigits < 1) continue;
-
-
- UShort_t prevDetector = 0;
- Char_t prevRing = '\0';
- UShort_t prevSector = 0;
- // UShort_t prevStrip = 0;
+ // Write out the digits
+ WriteDigits(digits);
+ }
+ loader->UnloadDigits();
+}
- // The first seen strip number for a channel
- UShort_t startStrip = 0;
-
- // Which channel number in the ALTRO channel we're at
- UShort_t offset = 0;
+#if 1
+//____________________________________________________________________
+void
+AliFMDRawWriter::WriteDigits(TClonesArray* digits)
+{
+ // WRite an array of digits to disk file
+ Int_t nDigits = digits->GetEntries();
+ if (nDigits < 1) return;
+ AliFMDDebug(5, ("Got a total of %5d digits from tree", nDigits));
- // How many times the ALTRO Samples one VA1_ALICE channel
- Int_t sampleRate = 1;
+ AliFMDParameters* pars = AliFMDParameters::Instance();
+ UShort_t threshold = 0;
+ UInt_t prevddl = 0xFFFF;
+ UInt_t prevaddr = 0xFFF;
+ // UShort_t prevStrip = 0;
+
+ // Which channel number in the ALTRO channel we're at
+ UShort_t nWords = 0;
+ UShort_t preSamples = 0;
+
+ // How many times the ALTRO Samples one VA1_ALICE channel
+ Int_t sampleRate = 1;
+
+ // A buffer to hold 1 ALTRO channel - Normally, one ALTRO channel
+ // holds 128 VA1_ALICE channels, sampled at a rate of `sampleRate'
+ TArrayI data(pars->GetChannelsPerAltro() * 8);
- // A buffer to hold 1 ALTRO channel - Normally, one ALTRO channel
- // holds 128 VA1_ALICE channels, sampled at a rate of `sampleRate'
- TArrayI channel(128 * sampleRate);
+ // The Altro buffer
+ AliAltroBuffer* altro = 0;
- // The Altro buffer
- AliAltroBuffer* altro = 0;
+ // Loop over the digits in the event. Note, that we assume the
+ // the digits are in order in the branch. If they were not, we'd
+ // have to cache all channels before we could write the data to
+ // the ALTRO buffer, or we'd have to set up a map of the digits.
+ UShort_t oldDet = 1000;
+ for (Int_t i = 0; i < nDigits; i++) {
+ // Get the digit
+ AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i));
+ UShort_t det = digit->Detector();
+ Char_t ring = digit->Ring();
+ UShort_t sector = digit->Sector();
+ UShort_t strip = digit->Strip();
+ UInt_t ddl;
+ UInt_t addr;
+ if (det != oldDet) {
+ AliFMDDebug(5, ("Got new detector: %d (was %d)", det, oldDet));
+ oldDet = det;
+ }
+ AliFMDDebug(10, ("Processing digit # %5d FMD%d%c[%2d,%3d]",
+ i, det, ring, sector, strip));
+ threshold = pars->GetZeroSuppression(det, ring, sector, strip);
+ if (!pars->Detector2Hardware(det, ring, sector, strip, ddl, addr)) {
+ AliError(Form("Failed to get hardware address for FMD%d%c[%2d,%3d]",
+ det, ring, sector, strip));
+ continue;
+ }
+ AliFMDDebug(10, ("FMD%d%c[%2d,%3d]-> ddl: 0x%x addr: 0x%x",
+ det, ring, sector, strip, ddl, addr));
+ if (addr != prevaddr) {
+ // Flush a channel to output
+ AliFMDDebug(15, ("Now hardware address 0x%x from FMD%d%c[%2d,%3d] "
+ "(board 0x%x, chip 0x%x, channel 0x%x), flushing old "
+ "channel at 0x%x with %d words",
+ addr, det, ring, sector, strip,
+ (addr >> 7), (addr >> 4) & 0x7, addr & 0xf,
+ prevaddr, nWords));
+ if (altro) altro->WriteChannel(prevaddr,nWords,data.fArray,threshold);
+ nWords = preSamples;
+ prevaddr = addr;
+ for (size_t i = 0; i < nWords; i++) data[i] = digit->Count(0);
+ }
+ if (ddl != prevddl) {
+ AliFMDDebug(5, ("FMD: New DDL, was %d, now %d", prevddl, ddl));
+ // If an altro exists, delete the object, flushing the data to
+ // disk, and closing the file.
+ if (altro) {
+ // When the first argument is false, we write the real
+ // header.
+ AliFMDDebug(15, ("Closing output"));
+ altro->Flush();
+ altro->WriteDataHeader(kFALSE, kFALSE);
+ delete altro;
+ altro = 0;
+ }
+ prevddl = ddl;
+ // Need to open a new DDL!
+ TString filename(AliDAQ::DdlFileName(fFMD->GetName(), ddl));
+ AliFMDDebug(5, ("New altro buffer with DDL file %s", filename.Data()));
+ // Create a new altro buffer - a `1' as the second argument
+ // means `write mode'
+ altro = new AliAltroBuffer(filename.Data());
+ altro->SetMapping(pars->GetAltroMap());
+ // Write a dummy (first argument is true) header to the DDL
+ // file - later on, when we close the file, we write the real
+ // header
+ altro->WriteDataHeader(kTRUE, kFALSE);
+ }
- // Loop over the digits in the event. Note, that we assume the
- // the digits are in order in the branch. If they were not, we'd
- // have to cache all channels before we could write the data to
- // the ALTRO buffer, or we'd have to set up a map of the digits.
- for (Int_t i = 0; i < nDigits; i++) {
- // Get the digit
- AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i));
-
- UShort_t det = digit->Detector();
- Char_t ring = digit->Ring();
- UShort_t sector = digit->Sector();
- UShort_t strip = digit->Strip();
- if (det != prevDetector) {
- AliDebug(10, Form("FMD: New DDL, was %d, now %d",
- AliFMD::kBaseDDL + prevDetector - 1,
- AliFMD::kBaseDDL + det - 1));
- // If an altro exists, delete the object, flushing the data to
- // disk, and closing the file.
- if (altro) {
- // When the first argument is false, we write the real
- // header.
- AliDebug(10, Form("New altro: Write channel at %d Strip: %d "
- "Sector: %d Ring: %d",
- i, startStrip, prevSector, prevRing));
- // TPC to FMD translations
- //
- // TPC FMD
- // ----------+-----------
- // pad | strip
- // row | sector
- // sector | ring
- //
- altro->WriteChannel(Int_t(startStrip),
- Int_t(prevSector),
- Int_t((prevRing == 'I' ? 0 : 1)),
- channel.fN, channel.fArray, 0);
- altro->Flush();
- altro->WriteDataHeader(kFALSE, kFALSE);
- delete altro;
- altro = 0;
- }
-
- prevDetector = det;
- // Need to open a new DDL!
- Int_t ddlId = AliFMD::kBaseDDL + det - 1;
- TString filename(Form("%s_%d.ddl", fFMD->GetName(), ddlId));
-
- AliDebug(10, Form("New altro buffer with DDL file %s",
- filename.Data()));
- AliDebug(10, Form("New altro at %d", i));
- // Create a new altro buffer - a `1' as the second argument
- // means `write mode'
- altro = new AliAltroBuffer(filename.Data(), 1);
-
- // Write a dummy (first argument is true) header to the DDL
- // file - later on, when we close the file, we write the real
- // header
- altro->WriteDataHeader(kTRUE, kFALSE);
+ // Store the counts of the ADC in the channel buffer
+ sampleRate = pars->GetSampleRate(det, ring, sector, strip);
+ for (int s = 0; s < sampleRate; s++) {
+ data[nWords] = digit->Count(s);
+ nWords++;
+ }
+ }
+ // Finally, we need to close the final ALTRO buffer if it wasn't
+ // already
+ if (altro) {
+ if (nWords > 0) altro->WriteChannel(prevaddr,nWords,data.fArray,threshold);
+ altro->Flush();
+ altro->WriteDataHeader(kFALSE, kFALSE);
+ delete altro;
+ }
+}
+#else
+//____________________________________________________________________
+void
+AliFMDRawWriter::WriteDigits(TClonesArray* digits)
+{
+ Int_t nDigits = digits->GetEntries();
+ if (nDigits < 1) return;
- // Figure out the sample rate
- if (fSampleRate > 0) sampleRate = fSampleRate;
- else {
- if (digit->Count2() >= 0) sampleRate = 2;
- if (digit->Count3() >= 0) sampleRate = 3;
+ AliFMDParameters* pars = AliFMDParameters::Instance();
+ AliFMDAltroWriter* writer = 0;
+ Int_t sampleRate = -1;
+ UShort_t hwaddr = 0;
+ UShort_t ddl = 0;
+ std::ofstream* file = 0;
+ Int_t ret = 0;
+ for (Int_t i = 0; i < nDigits; i++) {
+ // Get the digit
+ AliFMDDigit* digit = static_cast<AliFMDDigit*>(digits->At(i));
+ UInt_t thisDDL, thisHwaddr;
+ UShort_t det = digit->Detector();
+ Char_t ring = digit->Ring();
+ UShort_t sector = digit->Sector();
+ UShort_t strip = digit->Strip();
+ if (!pars->Detector2Hardware(det,ring,sector,strip,thisDDL,thisHwaddr)) {
+ AliError(Form("Failed to get hardware address for FMD%d%c[%2d,%3d]",
+ det, ring, sector, strip));
+ continue;
+ }
+ AliFMDDebug(40, ("Got DDL=%d and address=%d from FMD%d%c[%2d,%3d]",
+ thisDDL, thisHwaddr, det, ring, sector, strip));
+ // Check if we're still in the same channel
+ if (thisHwaddr != hwaddr) {
+ AliFMDDebug(30, ("Now hardware address 0x%x from FMD%d%c[%2d,%3d] "
+ "(board 0x%x, chip 0x%x, channel 0x%x)",
+ thisHwaddr, det, ring, sector, strip,
+ (thisHwaddr >> 7), (thisHwaddr >> 4) & 0x7,
+ thisHwaddr & 0xf));
+ if (writer) writer->AddChannelTrailer(hwaddr);
+ hwaddr = thisHwaddr;
+ }
+ // Check if we're still in the same detector (DDL)
+ if (ddl != thisDDL) {
+ if (writer) {
+ AliFMDDebug(1, ("Closing altro writer %p", writer));
+ if ((ret = writer->Close()) < 0) {
+ AliError(Form("Error: %s", writer->ErrorString(ret)));
+ return;
}
-
- channel.Set(128 * sampleRate);
- offset = 0;
- prevRing = ring;
- prevSector = sector;
- startStrip = strip;
+ delete writer;
+ writer = 0;
+ file->close();
+ delete file;
+ file = 0;
}
- else if (offset == 128
- || digit->Ring() != prevRing
- || digit->Sector() != prevSector) {
- // Force a new Altro channel
- AliDebug(10, Form("Flushing channel to disk because %s",
- (offset == 128 ? "channel is full" :
- (ring != prevRing ? "new ring up" :
- "new sector up"))));
- AliDebug(10, Form("New Channel: Write channel at %d Strip: %d "
- "Sector: %d Ring: %d",
- i, startStrip, prevSector, prevRing));
- altro->WriteChannel(Int_t(startStrip),
- Int_t(prevSector),
- Int_t((prevRing == 'I' ? 0 : 1)),
- channel.fN, channel.fArray, 0);
- // Reset and update channel variables
- channel.Reset(0);
- offset = 0;
- startStrip = strip;
- prevRing = ring;
- prevSector = sector;
- }
-
- // Store the counts of the ADC in the channel buffer
- channel[offset * sampleRate] = digit->Count1();
- if (sampleRate > 1)
- channel[offset * sampleRate + 1] = digit->Count2();
- if (sampleRate > 2)
- channel[offset * sampleRate + 2] = digit->Count3();
- offset++;
+ ddl = thisDDL;
}
- // Finally, we need to close the final ALTRO buffer if it wasn't
- // already
- if (altro) {
- altro->Flush();
- altro->WriteDataHeader(kFALSE, kFALSE);
- delete altro;
+ // If we haven't got a writer (either because none were made so
+ // far, or because we've switch DDL), make one.
+ if (!writer) {
+ AliFMDDebug(1, ("Opening new ALTRO writer w/file %s",
+ AliDAQ::DdlFileName("FMD",ddl)));
+ file = new std::ofstream(AliDAQ::DdlFileName("FMD",ddl));
+ if (!file || !*file) {
+ AliFatal(Form("Failed to open file %s",
+ AliDAQ::DdlFileName("FMD",ddl)));
+ return;
+ }
+ writer = new AliFMDAltroWriter(*file);
+ writer->SetThreshold(pars->GetZeroSuppression(det, ring, sector, strip));
}
+ // Write out our signal
+ sampleRate = pars->GetSampleRate(det,ring,sector,strip);
+ writer->AddSignal(digit->Count1());
+ if (sampleRate >= 2) writer->AddSignal(digit->Count2());
+ if (sampleRate >= 3) writer->AddSignal(digit->Count3());
+ }
+ if (writer) {
+ writer->AddChannelTrailer(hwaddr);
+ writer->Close();
+ delete writer;
+ file->close();
+ delete file;
}
- loader->UnloadDigits();
}
+#endif
+
+
+
//____________________________________________________________________
//