[u/mrichter/AliRoot.git] / T0 / AliT0RawReader.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id:  */

//____________________________________________________________________
//                                                                          
// T0 
// Class for reading T0 RAW data in TOF data format
// Alla.Maevskaya@cern.ch
//
//____________________________________________________________________

#include "AliT0RawReader.h"
#include "AliT0Parameters.h"
#include "AliBitPacking.h"
#include "TBits.h"

//#include <Riostream.h>
#include "AliLog.h"
 
ClassImp(AliT0RawReader)
  
  AliT0RawReader::AliT0RawReader (AliRawReader *rawReader, Bool_t isOnline)
    :  TTask("T0RawReader","read raw T0 data"),
       fRawReader(rawReader),
       fData(NULL),
       fPosition(0),
       fParam(NULL),
       fIsOnline(isOnline)
{
  //
// create an object to read T0raw digits
  AliDebug(1,"Start ");
 
  fRawReader->Reset();
  fRawReader->Select("T0");
  fParam = AliT0Parameters::Instance();  
  if (fIsOnline)
    fParam->InitIfOnline();
  else 
    fParam->Init();
 
}
 AliT0RawReader::~AliT0RawReader ()
{
  // 
}


Bool_t  AliT0RawReader::Next()
{
// read the next raw digit
// returns kFALSE if there is no digit left
//"LookUpTable":
// Amplitude LED TRM=0; chain=0; TDC 0 -5        channel 0,2,4,6
// Time CFD      TRM=0; chain=0; TDC 6 - 11      channel 0,2,4,6
// mean time     TRM=0; chain=0; TDC 12          channel 0
// T0A           TRM=0; chain=0; TDC 12          channel 2
// T0C           TRM=0; chain=0; TDC 12          channel 4
// vertex        TRM=0; chain=0; TDC 12          channel 6
// mult QTC0        TRM=0; chain=0; TDC 13          channel 0
// mult QTC1        TRM=0; chain=0; TDC 13          channel 2

// Charge QTC0   TRM=1; chain=0; TDC 0 -5        channel 0,2,4,6
// Charge QTC1   TRM=1; chain=0; TDC 6 - 11      channel 0,2,4,6
// T0A trigger          TRM=1; chain=0; TDC 12          channel 0
// T0C trigger          TRM=1; chain=0; TDC 12          channel 2
// vertex trigger       TRM=1; chain=0; TDC 12          channel 4
// trigger central      TRM=1; chain=0; TDC 13          channel 0
// tigger semicenral    TRM=1; chain=0; TDC 13          channel 2
//
// allData array collect data from all channels in one :
// allData[0] - allData[23] 24 CFD channels
// allData[24] -   allData[47] 24 LED channels
//  allData[48]  mean (T0) signal  
// allData[49]   time difference (vertex)

 
  UInt_t word;
  Int_t time=0,  itdc=0, ichannel=0, uu; 
  Int_t numberOfWordsInTRM=0, iTRM=0;
  Int_t tdcTime, koef,hit=0;
  Int_t koefhits[110];
  Int_t trmChainHeader =  0x00000000;
  Int_t  trmChainTrailer =  0x10000000;
  
  Int_t  filler =  0x70000000;
  Bool_t correct=kTRUE;
  Int_t header;

   Int_t fNTRM = fParam->GetNumberOfTRMs();
   for ( Int_t k=0; k<110; k++) {
    koefhits[k]=0;
    for ( Int_t jj=0; jj<5; jj++) {
      fAllData[k][jj]=0;
     }
   }
    do {
      if (!fRawReader->ReadNextData(fData)) return kFALSE;
    } while (fRawReader->GetDataSize() == 0);
    
    fPosition = 0;
    //     cout.setf( ios_base::hex, ios_base::basefield );
    
    //DRM header
    for (Int_t i=0; i<6; i++) {
      word = GetNextWord();
      //      cout<<" DRM header "<<word<<endl;
      header = AliBitPacking::UnpackWord(word,28,31);
      if( header !=4 )
	{
	  AliWarning(Form(" !!!! wrong  DRM header  %x!!!!", word));
	  fRawReader->AddFatalErrorLog(kWrongDRMHeader,Form("w=%x",word));
	  break;
	}
    }
      for (Int_t ntrm=0; ntrm< fNTRM; ntrm++)
      {
	//TRMheader  
	word = GetNextWord();
	header = AliBitPacking::UnpackWord(word,28,31);
	//	cout<<" TRM header "<<word<<endl;
	if ( header != 4 )
	  {
	    AliWarning(Form(" !!!! wrong TRM header  %x!!!!", word));
	    fRawReader->AddMajorErrorLog(kWrongTRMHeader,Form("w=%x",word));
	    break;
	  }
	numberOfWordsInTRM=AliBitPacking::UnpackWord(word,4,16);
	//	cout<<" numberOfWordsInTRM "<<numberOfWordsInTRM<<endl;
	iTRM=AliBitPacking::UnpackWord(word,0,3);
	for( Int_t ichain=0; ichain<2; ichain++)
	  {
	    //chain header
	    word = GetNextWord();
	    //	    cout<<" chain header "<<word<<endl;
	    uu = word & trmChainHeader;
	    if(uu != trmChainHeader) 
	      {
		AliWarning(Form(" !!!! wrong CHAIN  0  header %x!!!!", word));
		fRawReader->AddMajorErrorLog(kWrongChain0Header,Form("w=%x",word));
		break;
	      }
	    word = GetNextWord();
//	    cout<<" next "<<word<<endl;
	    tdcTime =  AliBitPacking::UnpackWord(word,31,31);   
	    while(tdcTime==1)
	      {
		//			cout<<" packed "<<word<<endl;
		itdc=AliBitPacking::UnpackWord(word,24,27);
		ichannel=AliBitPacking::UnpackWord(word,21,23);
		time=AliBitPacking::UnpackWord(word,0,20);
		
		koef = fParam->GetChannel(iTRM,itdc,ichain,ichannel);
		if (koef != 0 ) 
		  //		  cout<<"RawReader>> "<<"koef "<<koef<<" trm "<<iTRM<<
		  //		    " tdc "<<itdc<<" chain "<<ichain<<
		  //		    " channel "<<ichannel<<" time "<<time<<endl;
		if (koef ==-1 ){
		  AliWarning(Form("Incorrect lookup table ! "));
		  fRawReader->AddMajorErrorLog(kIncorrectLUT);
		  correct=kFALSE;
		}
		if(correct){
		  hit=koefhits[koef];
		  if(hit>5) {  
		    AliWarning(Form("Too many hits for %i channel  ! ",koef)); 
		    break; 
		  }
		  fAllData[koef][hit]=time; 
		  koefhits[koef]++;
		}
		word = GetNextWord();
		//		cout<<" next word in cycle "<<word<<endl;
		tdcTime =  AliBitPacking::UnpackWord(word,31,31);   
		
	      }
	    
	    //	    cout<<" chain trailer "<<word<<endl;
	    uu = word&trmChainTrailer;
	    if(uu != trmChainTrailer )
	      {
		AliWarning(Form(" !!!! wrong CHAIN 0 trailer %x !!!!", word));
		fRawReader->AddMajorErrorLog(kWrongChain0Trailer,Form("w=%x",word));
		break;
	      }
	  }
            
	word = GetNextWord(); //TRM trailer
	//	cout<<" TRM trailer "<<word<<endl;
	header = AliBitPacking::UnpackWord(word,28,31);
	if( header !=5 )
	  {
	    AliWarning(Form(" !!!! wrong TRM GLOBAL trailer  %x!!!!", word));
	    fRawReader->AddMajorErrorLog(kWrongTRMTrailer,Form("w=%x",word));
	    break;
	  }
      } //TRM loop
    word = GetNextWord(); //
    //    cout<<" after TRM trailer "<<word<<endl;
    if (word == filler )  word = GetNextWord(); 
     header = AliBitPacking::UnpackWord(word,28,31);
     if( header !=5 )
       {
	 AliWarning(Form(" !!!! wrong DRM GLOBAL trailer  %x!!!!", word));
	 fRawReader->AddFatalErrorLog(kWrongDRMTrailer,Form("w=%x",word));
      }
     // cout.setf( ios_base::dec, ios_base::basefield );
         
     return kTRUE;
}
//_____________________________________________________________________________
Int_t AliT0RawReader::GetPosition()
{
  // Sets the position in the
  // input stream
  if (((fRawReader->GetDataSize() * 8) % 32) != 0)
    AliFatal(Form("Incorrect raw data size ! %d words are found !",fRawReader->GetDataSize()));
  return (fRawReader->GetDataSize() * 8) / 32;
}
//_____________________________________________________________________________
UInt_t AliT0RawReader::GetNextWord()
{
  // Read the next 32 bit word in backward direction
  // The input stream access is given by fData and fPosition


  //   fPosition--;
  Int_t iBit = fPosition * 32;
  Int_t iByte = iBit / 8;

  UInt_t word = 0;
  word  = fData[iByte+3]<<24;
  word |= fData[iByte+2]<<16;
  word |= fData[iByte+1]<<8;
  word |= fData[iByte];
   fPosition++;

  return word;

}
Commit	Line	Data
	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16	/* $Id: */
	17
	18	//____________________________________________________________________
	19	//
	20	// T0
	21	// Class for reading T0 RAW data in TOF data format
	22	// Alla.Maevskaya@cern.ch
	23	//
	24	//____________________________________________________________________
	25
	26	#include "AliT0RawReader.h"
	27	#include "AliT0Parameters.h"
	28	#include "AliBitPacking.h"
	29	#include "TBits.h"
	30
	31	//#include <Riostream.h>
	32	#include "AliLog.h"
	33
	34	ClassImp(AliT0RawReader)
	35
	36	AliT0RawReader::AliT0RawReader (AliRawReader *rawReader, Bool_t isOnline)
	37	: TTask("T0RawReader","read raw T0 data"),
	38	fRawReader(rawReader),
	39	fData(NULL),
	40	fPosition(0),
	41	fParam(NULL),
	42	fIsOnline(isOnline)
	43	{
	44	//
	45	// create an object to read T0raw digits
	46	AliDebug(1,"Start ");
	47
	48	fRawReader->Reset();
	49	fRawReader->Select("T0");
	50	fParam = AliT0Parameters::Instance();
	51	if (fIsOnline)
	52	fParam->InitIfOnline();
	53	else
	54	fParam->Init();
	55
	56	}
	57	AliT0RawReader::~AliT0RawReader ()
	58	{
	59	//
	60	}
	61
	62
	63	Bool_t AliT0RawReader::Next()
	64	{
	65	// read the next raw digit
	66	// returns kFALSE if there is no digit left
	67	//"LookUpTable":
	68	// Amplitude LED TRM=0; chain=0; TDC 0 -5 channel 0,2,4,6
	69	// Time CFD TRM=0; chain=0; TDC 6 - 11 channel 0,2,4,6
	70	// mean time TRM=0; chain=0; TDC 12 channel 0
	71	// T0A TRM=0; chain=0; TDC 12 channel 2
	72	// T0C TRM=0; chain=0; TDC 12 channel 4
	73	// vertex TRM=0; chain=0; TDC 12 channel 6
	74	// mult QTC0 TRM=0; chain=0; TDC 13 channel 0
	75	// mult QTC1 TRM=0; chain=0; TDC 13 channel 2
	76
	77	// Charge QTC0 TRM=1; chain=0; TDC 0 -5 channel 0,2,4,6
	78	// Charge QTC1 TRM=1; chain=0; TDC 6 - 11 channel 0,2,4,6
	79	// T0A trigger TRM=1; chain=0; TDC 12 channel 0
	80	// T0C trigger TRM=1; chain=0; TDC 12 channel 2
	81	// vertex trigger TRM=1; chain=0; TDC 12 channel 4
	82	// trigger central TRM=1; chain=0; TDC 13 channel 0
	83	// tigger semicenral TRM=1; chain=0; TDC 13 channel 2
	84	//
	85	// allData array collect data from all channels in one :
	86	// allData[0] - allData[23] 24 CFD channels
	87	// allData[24] - allData[47] 24 LED channels
	88	// allData[48] mean (T0) signal
	89	// allData[49] time difference (vertex)
	90
	91
	92	UInt_t word;
	93	Int_t time=0, itdc=0, ichannel=0, uu;
	94	Int_t numberOfWordsInTRM=0, iTRM=0;
	95	Int_t tdcTime, koef,hit=0;
	96	Int_t koefhits[110];
	97	Int_t trmChainHeader = 0x00000000;
	98	Int_t trmChainTrailer = 0x10000000;
	99
	100	Int_t filler = 0x70000000;
	101	Bool_t correct=kTRUE;
	102	Int_t header;
	103
	104	Int_t fNTRM = fParam->GetNumberOfTRMs();
	105	for ( Int_t k=0; k<110; k++) {
	106	koefhits[k]=0;
	107	for ( Int_t jj=0; jj<5; jj++) {
	108	fAllData[k][jj]=0;
	109	}
	110	}
	111	do {
	112	if (!fRawReader->ReadNextData(fData)) return kFALSE;
	113	} while (fRawReader->GetDataSize() == 0);
	114
	115	fPosition = 0;
	116	// cout.setf( ios_base::hex, ios_base::basefield );
	117
	118	//DRM header
	119	for (Int_t i=0; i<6; i++) {
	120	word = GetNextWord();
	121	// cout<<" DRM header "<<word<<endl;
	122	header = AliBitPacking::UnpackWord(word,28,31);
	123	if( header !=4 )
	124	{
	125	AliWarning(Form(" !!!! wrong DRM header %x!!!!", word));
	126	fRawReader->AddFatalErrorLog(kWrongDRMHeader,Form("w=%x",word));
	127	break;
	128	}
	129	}
	130	for (Int_t ntrm=0; ntrm< fNTRM; ntrm++)
	131	{
	132	//TRMheader
	133	word = GetNextWord();
	134	header = AliBitPacking::UnpackWord(word,28,31);
	135	// cout<<" TRM header "<<word<<endl;
	136	if ( header != 4 )
	137	{
	138	AliWarning(Form(" !!!! wrong TRM header %x!!!!", word));
	139	fRawReader->AddMajorErrorLog(kWrongTRMHeader,Form("w=%x",word));
	140	break;
	141	}
	142	numberOfWordsInTRM=AliBitPacking::UnpackWord(word,4,16);
	143	// cout<<" numberOfWordsInTRM "<<numberOfWordsInTRM<<endl;
	144	iTRM=AliBitPacking::UnpackWord(word,0,3);
	145	for( Int_t ichain=0; ichain<2; ichain++)
	146	{
	147	//chain header
	148	word = GetNextWord();
	149	// cout<<" chain header "<<word<<endl;
	150	uu = word & trmChainHeader;
	151	if(uu != trmChainHeader)
	152	{
	153	AliWarning(Form(" !!!! wrong CHAIN 0 header %x!!!!", word));
	154	fRawReader->AddMajorErrorLog(kWrongChain0Header,Form("w=%x",word));
	155	break;
	156	}
	157	word = GetNextWord();
	158	// cout<<" next "<<word<<endl;
	159	tdcTime = AliBitPacking::UnpackWord(word,31,31);
	160	while(tdcTime==1)
	161	{
	162	// cout<<" packed "<<word<<endl;
	163	itdc=AliBitPacking::UnpackWord(word,24,27);
	164	ichannel=AliBitPacking::UnpackWord(word,21,23);
	165	time=AliBitPacking::UnpackWord(word,0,20);
	166
	167	koef = fParam->GetChannel(iTRM,itdc,ichain,ichannel);
	168	if (koef != 0 )
	169	// cout<<"RawReader>> "<<"koef "<<koef<<" trm "<<iTRM<<
	170	// " tdc "<<itdc<<" chain "<<ichain<<
	171	// " channel "<<ichannel<<" time "<<time<<endl;
	172	if (koef ==-1 ){
	173	AliWarning(Form("Incorrect lookup table ! "));
	174	fRawReader->AddMajorErrorLog(kIncorrectLUT);
	175	correct=kFALSE;
	176	}
	177	if(correct){
	178	hit=koefhits[koef];
	179	if(hit>5) {
	180	AliWarning(Form("Too many hits for %i channel ! ",koef));
	181	break;
	182	}
	183	fAllData[koef][hit]=time;
	184	koefhits[koef]++;
	185	}
	186	word = GetNextWord();
	187	// cout<<" next word in cycle "<<word<<endl;
	188	tdcTime = AliBitPacking::UnpackWord(word,31,31);
	189
	190	}
	191
	192	// cout<<" chain trailer "<<word<<endl;
	193	uu = word&trmChainTrailer;
	194	if(uu != trmChainTrailer )
	195	{
	196	AliWarning(Form(" !!!! wrong CHAIN 0 trailer %x !!!!", word));
	197	fRawReader->AddMajorErrorLog(kWrongChain0Trailer,Form("w=%x",word));
	198	break;
	199	}
	200	}
	201
	202	word = GetNextWord(); //TRM trailer
	203	// cout<<" TRM trailer "<<word<<endl;
	204	header = AliBitPacking::UnpackWord(word,28,31);
	205	if( header !=5 )
	206	{
	207	AliWarning(Form(" !!!! wrong TRM GLOBAL trailer %x!!!!", word));
	208	fRawReader->AddMajorErrorLog(kWrongTRMTrailer,Form("w=%x",word));
	209	break;
	210	}
	211	} //TRM loop
	212	word = GetNextWord(); //
	213	// cout<<" after TRM trailer "<<word<<endl;
	214	if (word == filler ) word = GetNextWord();
	215	header = AliBitPacking::UnpackWord(word,28,31);
	216	if( header !=5 )
	217	{
	218	AliWarning(Form(" !!!! wrong DRM GLOBAL trailer %x!!!!", word));
	219	fRawReader->AddFatalErrorLog(kWrongDRMTrailer,Form("w=%x",word));
	220	}
	221	// cout.setf( ios_base::dec, ios_base::basefield );
	222
	223	return kTRUE;
	224	}
	225	//_____________________________________________________________________________
	226	Int_t AliT0RawReader::GetPosition()
	227	{
	228	// Sets the position in the
	229	// input stream
	230	if (((fRawReader->GetDataSize() * 8) % 32) != 0)
	231	AliFatal(Form("Incorrect raw data size ! %d words are found !",fRawReader->GetDataSize()));
	232	return (fRawReader->GetDataSize() * 8) / 32;
	233	}
	234	//_____________________________________________________________________________
	235	UInt_t AliT0RawReader::GetNextWord()
	236	{
	237	// Read the next 32 bit word in backward direction
	238	// The input stream access is given by fData and fPosition
	239
	240
	241	// fPosition--;
	242	Int_t iBit = fPosition * 32;
	243	Int_t iByte = iBit / 8;
	244
	245	UInt_t word = 0;
	246	word = fData[iByte+3]<<24;
	247	word \|= fData[iByte+2]<<16;
	248	word \|= fData[iByte+1]<<8;
	249	word \|= fData[iByte];
	250	fPosition++;
	251
	252	return word;
	253
	254	}
	255