[u/mrichter/AliRoot.git] / ITS / AliITSRawStreamSDD.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.                  *
 **************************************************************************/

/* $Id$*/

///////////////////////////////////////////////////////////////////////////////
///
/// This class provides access to ITS SDD digits in raw data.
///
///////////////////////////////////////////////////////////////////////////////

#include "AliITSRawStreamSDD.h"
#include "AliRawReader.h"
#include "AliLog.h"

ClassImp(AliITSRawStreamSDD)

const Int_t AliITSRawStreamSDD::fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL] = {
 
  {240,241,242,246,247,248,252,253,254,258,259,260},
  {264,265,266,270,271,272,276,277,278,282,283,284},
  {288,289,290,294,295,296,300,301,302,306,307,308},
  {312,313,314,318,319,320,-1,-1,-1,-1,-1,-1},
  {243,244,245,249,250,251,255,256,257,261,262,263},
  {267,268,269,273,274,275,279,280,281,285,286,287},
  {291,292,293,297,298,299,303,304,305,309,310,311},
  {315,316,317,321,322,323,-1,-1,-1,-1,-1,-1},
  {324,325,326,327,332,333,334,335,340,341,342,343},
  {348,349,350,351,356,357,358,359,364,365,366,367},
  {372,373,374,375,380,381,382,383,388,389,390,391},
  {396,397,398,399,404,405,406,407,412,413,414,415},
  {420,421,422,423,428,429,430,431,436,437,438,439},
  {444,445,446,447,452,453,454,455,460,461,462,463},
  {468,469,470,471,476,477,478,479,484,485,486,487},
  {492,493,494,495,-1,-1,-1,-1,-1,-1,-1,-1},
  {328,329,330,331,336,337,338,339,344,345,346,347},
  {352,353,354,355,360,361,362,363,368,369,370,371},
  {376,377,378,379,384,385,386,387,392,393,394,395},
  {400,401,402,403,408,409,410,411,416,417,418,419},
  {424,425,426,427,432,433,434,435,440,441,442,443},
  {448,449,450,451,456,457,458,459,464,465,466,467},
  {472,473,474,475,480,481,482,483,488,489,490,491},
  {496,497,498,499,-1,-1,-1,-1,-1,-1,-1,-1}};
  
const UInt_t AliITSRawStreamSDD::fgkCodeLength[8] =  {8, 18, 2, 3, 4, 5, 6, 7};

AliITSRawStreamSDD::AliITSRawStreamSDD(AliRawReader* rawReader) :
  AliITSRawStream(rawReader),
fData(0),
fCarlosId(0),
fEventId(0),
fChannel(0),
fJitter(0),
fNCarlos(kModulesPerDDL),
fNfifo0(0),
fNfifo1(0),
fNfifo2(0),
fNfifo3(0),
fDDL(0){
// create an object to read ITS SDD raw digits
  
  for(Int_t i=0;i<2;i++){
    for(Int_t ic=0;ic<kModulesPerDDL;ic++){
      fChannelData[ic][i]=0;
      fLastBit[ic][i]=0;
      fChannelCode[ic][i]=0;
      fReadCode[ic][i]=kFALSE;
      fReadBits[ic][i]=0;
      fTimeBin[ic][i]=0;
      fAnode[ic][i]=0;     
    }
    fLowThreshold[i]=0;
  }
  for(Int_t i=0;i<kDDLsNumber;i++) fSkip[i]=0;
  fRawReader->Reset();
  fRawReader->Select("ITSSDD");

  //  fRawReader->SelectEquipment(17, 101, 101);//select this for test data
  //  fNCarlos = 8; //select this for test data
}

UInt_t AliITSRawStreamSDD::ReadBits()
{
// read bits from the given channel
  UInt_t result = (fChannelData[fCarlosId][fChannel] & ((1<<fReadBits[fCarlosId][fChannel]) - 1));
  fChannelData[fCarlosId][fChannel] >>= fReadBits[fCarlosId][fChannel]; 
  fLastBit[fCarlosId][fChannel] -= fReadBits[fCarlosId][fChannel];
  return result;
}

Int_t AliITSRawStreamSDD::DecompAmbra(Int_t value) const
{
  // AMBRA decompression (from 8 to 10 bit)
  
  if ((value & 0x80) == 0) {
    return value & 0x7f;
  } else if ((value & 0x40) == 0) {
    return 0x081 + ((value & 0x3f) << 1);
  } else if ((value & 0x20) == 0) {
    return 0x104 + ((value & 0x1f) << 3);
  } else {
    return 0x208 + ((value & 0x1f) << 4);
  }
  
}

Bool_t AliITSRawStreamSDD::Next()
{
// read the next raw digit
// returns kFALSE if there is no digit left

  fPrevModuleID = fModuleID;
  fDDL=fRawReader->GetDDLID();
  Int_t ddln = fRawReader->GetDDLID();
  if(ddln <0) ddln=0;
  while (fSkip[ddln] < 9) {
    if (!fRawReader->ReadNextInt(fData))return kFALSE;
    if ((fData >> 30) == 0x01) continue;  // JTAG word
    fSkip[ddln]++;
  }
  

  Int_t countFoot[kModulesPerDDL];
  for(Int_t i=0;i<kModulesPerDDL;i++) countFoot[i]=0;
  UInt_t iCarlos0Word=805306368;
  UInt_t iCarlos1Word=805306369;
  UInt_t iCarlos2Word=805306370;
  UInt_t iCarlos3Word=805306371;
  UInt_t iCarlos4Word=805306372;
  UInt_t iCarlos5Word=805306373;
  UInt_t iCarlos6Word=805306374;
  UInt_t iCarlos7Word=805306375;
  UInt_t iCarlos8Word=805306376;
  UInt_t iCarlos9Word=805306377;
  UInt_t iCarlos10Word=805306378;
  UInt_t iCarlos11Word=805306379;
  UInt_t iFifo0Word=805306384;
  UInt_t iFifo1Word=805306385;
  UInt_t iFifo2Word=805306386;
  UInt_t iFifo3Word=805306387;
  while (kTRUE) {
    if ((fChannel < 0) || (fLastBit[fCarlosId][fChannel] < fReadBits[fCarlosId][fChannel])) {

      if (!fRawReader->ReadNextInt(fData)){ 
	return kFALSE;  // read next word 
      }
      ddln = fRawReader->GetDDLID();
      if(ddln!=fDDL){
	Reset();
	for(Int_t icr=0;icr<kModulesPerDDL;icr++) countFoot[icr]=0;
      }
      if(ddln < 0 || ddln > (kDDLsNumber-1)) ddln  = 0;
      while (fSkip[ddln] < 9) {
	if (!fRawReader->ReadNextInt(fData)){ 
	  return kFALSE;
	}
	if ((fData >> 30) == 0x01) continue;  // JTAG word
	fSkip[ddln]++;
      }

      fChannel = -1;
      if((fData>=iCarlos0Word&&fData<=iCarlos11Word)||(fData>=iFifo0Word&&fData<=iFifo3Word)){
	if(fData==iCarlos0Word){
	  fCarlosId = 0;
	  fNfifo0 = fCarlosId;
	}
	else if (fData==iCarlos1Word){
	  fCarlosId = 1;
	  fNfifo0 = fCarlosId;
	}
	else if (fData==iCarlos2Word){
	  fCarlosId = 2;
	  if(fNCarlos == 8) fNfifo1 = fCarlosId;
	  else fNfifo0 = fCarlosId;
	}
	else if (fData==iCarlos3Word){
	  fCarlosId = 3;
	  fNfifo1 = fCarlosId;
	}
	else if (fData==iCarlos4Word){
	  fCarlosId = 4;
	  if(fNCarlos == 8) fNfifo2 = fCarlosId;
	  else fNfifo1 = fCarlosId;
	}
	else if (fData==iCarlos5Word){
	  fCarlosId = 5;
	  if(fNCarlos == 8) fNfifo2 = fCarlosId;
	  else fNfifo1 = fCarlosId;
	}
	else if (fData==iCarlos6Word){
	  fCarlosId = 6;
	  if(fNCarlos == 8) fNfifo3 = fCarlosId;
	  else fNfifo2 = fCarlosId;
	}
	else if (fData==iCarlos7Word){
	  fCarlosId = 7;
	  if(fNCarlos == 8) fNfifo3 = fCarlosId;
	  else fNfifo2 = fCarlosId;
	}
	else if (fData==iCarlos8Word){
	  fCarlosId = 8;
	  fNfifo2 = fCarlosId;
	}
	else if (fData==iCarlos9Word){
	  fCarlosId = 9;
	  fNfifo3 = fCarlosId;
	}
	else if (fData==iCarlos10Word){
	  fCarlosId = 10;
	  fNfifo3 = fCarlosId;
	}
	else if (fData==iCarlos11Word){
	  fCarlosId = 11;
	  fNfifo3 = fCarlosId;
	}
	else if (fData==iFifo0Word){
	  fCarlosId = fNfifo0;
	}
	else if (fData==iFifo1Word){
	  fCarlosId = fNfifo1;
	}
	else if (fData==iFifo2Word){
	  fCarlosId = fNfifo2;
	}
	else if (fData==iFifo3Word){
	  fCarlosId = fNfifo3;
	}
      }
      if(fData==1059004191) continue;
      if (fNCarlos == 8 && (fCarlosId == 8 || fCarlosId == 9 || 
			    fCarlosId ==10 || fCarlosId == 11))continue;
      
      fModuleID = fgkDDLModuleMap[fRawReader->GetDDLID()][fCarlosId];
      
      if ((fData >> 28) == 0x02) {           // header
	fEventId = (fData >> 3) & 0x07FF;
      } else if ((fData >> 28) == 0x03) {    // footer
        countFoot[fCarlosId]++; // stop before the last word (last word=jitter)
	Bool_t exit=kTRUE;
	for(Int_t ic=0;ic<fNCarlos;ic++){
	  if(countFoot[ic]<3) exit=kFALSE;
	}
        if(exit){
	  return kFALSE;
	}	 
      } else if ((fData >> 29) == 0x00) {    // error

	if ((fData & 0x00000163) != 0) {	 
	  fRawReader->AddMajorErrorLog(kDataError,Form("Error code = %8.8x",fData));	 
	  AliWarning(Form("error codes = %8.8x",fData));
	  return kFALSE; 	  
	}
      } else if ((fData >> 30) == 0x01) {    // JTAG word
	// ignored
      } else if ((fData >> 30) == 0x02) {    // channel 0 data
	
	fChannel = 0;
      } else if ((fData >> 30) == 0x03) {    // channel 1 data
	fChannel = 1;
      } else {                               // unknown data format
	fRawReader->AddMajorErrorLog(kDataFormatErr,Form("Invalid data %8.8x",fData));
	AliWarning(Form("invalid data: %8.8x\n", fData));
	return kFALSE;
      }
      
      if (fChannel >= 0) {   // add read word to the data
	fChannelData[fCarlosId][fChannel] += 
	  (ULong64_t(fData & 0x3FFFFFFF) << fLastBit[fCarlosId][fChannel]);
	fLastBit[fCarlosId][fChannel] += 30;
      }

    } else {  // decode data

      if (fReadCode[fCarlosId][fChannel]) {// read the next code word
	fChannelCode[fCarlosId][fChannel] = ReadBits();
	fReadCode[fCarlosId][fChannel] = kFALSE;
	fReadBits[fCarlosId][fChannel] = fgkCodeLength[fChannelCode[fCarlosId][fChannel]];

      } else {                      // read the next data word
	UInt_t data = ReadBits();
	fReadCode[fCarlosId][fChannel] = kTRUE;
	fReadBits[fCarlosId][fChannel] = 3;
	if (fChannelCode[fCarlosId][fChannel] == 0) {         // set the time bin	  
	  fTimeBin[fCarlosId][fChannel] = data;
	} else if (fChannelCode[fCarlosId][fChannel] == 1) {  // next anode
	  fTimeBin[fCarlosId][fChannel] = 0;
	  fAnode[fCarlosId][fChannel]++;

	}else {                                   // ADC signal data
	  fSignal = DecompAmbra(data + (1 << fChannelCode[fCarlosId][fChannel]) + fLowThreshold[fChannel]);
	  fCoord1 = fAnode[fCarlosId][fChannel];
	  fCoord2 = fTimeBin[fCarlosId][fChannel];
	  fTimeBin[fCarlosId][fChannel]++;
	  return kTRUE;
	}
      }
    }
  }
  return kFALSE;  

}

void AliITSRawStreamSDD::Reset(){
  //reset data member for a new ddl
  
  for(Int_t i=0;i<2;i++){
    for(Int_t ic=0;ic<kModulesPerDDL;ic++){
      fChannelData[ic][i]=0;
      fLastBit[ic][i]=0;
      fChannelCode[ic][i]=0;
      fReadCode[ic][i]=kFALSE;
      fReadBits[ic][i]=0;
      fTimeBin[ic][i]=0;
      fAnode[ic][i]=0;     
    }
    fLowThreshold[i]=0;
  }
  fChannel=-1;
  fDDL=fRawReader->GetDDLID();
}
Commit	Line	Data
2906f4c2	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
ceb607d0	16	/* $Id$*/
2906f4c2	17
	18	///////////////////////////////////////////////////////////////////////////////
	19	///
	20	/// This class provides access to ITS SDD digits in raw data.
	21	///
	22	///////////////////////////////////////////////////////////////////////////////
	23
	24	#include "AliITSRawStreamSDD.h"
	25	#include "AliRawReader.h"
39a7c5cc	26	#include "AliLog.h"
2906f4c2	27
	28	ClassImp(AliITSRawStreamSDD)
	29
2906f4c2	30	const Int_t AliITSRawStreamSDD::fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL] = {
a97b3678	31
	32	{240,241,242,246,247,248,252,253,254,258,259,260},
	33	{264,265,266,270,271,272,276,277,278,282,283,284},
	34	{288,289,290,294,295,296,300,301,302,306,307,308},
	35	{312,313,314,318,319,320,-1,-1,-1,-1,-1,-1},
	36	{243,244,245,249,250,251,255,256,257,261,262,263},
	37	{267,268,269,273,274,275,279,280,281,285,286,287},
	38	{291,292,293,297,298,299,303,304,305,309,310,311},
	39	{315,316,317,321,322,323,-1,-1,-1,-1,-1,-1},
	40	{324,325,326,327,332,333,334,335,340,341,342,343},
	41	{348,349,350,351,356,357,358,359,364,365,366,367},
	42	{372,373,374,375,380,381,382,383,388,389,390,391},
	43	{396,397,398,399,404,405,406,407,412,413,414,415},
	44	{420,421,422,423,428,429,430,431,436,437,438,439},
	45	{444,445,446,447,452,453,454,455,460,461,462,463},
	46	{468,469,470,471,476,477,478,479,484,485,486,487},
	47	{492,493,494,495,-1,-1,-1,-1,-1,-1,-1,-1},
	48	{328,329,330,331,336,337,338,339,344,345,346,347},
	49	{352,353,354,355,360,361,362,363,368,369,370,371},
	50	{376,377,378,379,384,385,386,387,392,393,394,395},
	51	{400,401,402,403,408,409,410,411,416,417,418,419},
	52	{424,425,426,427,432,433,434,435,440,441,442,443},
	53	{448,449,450,451,456,457,458,459,464,465,466,467},
	54	{472,473,474,475,480,481,482,483,488,489,490,491},
	55	{496,497,498,499,-1,-1,-1,-1,-1,-1,-1,-1}};
1ba0280f	56
1ba0280f	57	const UInt_t AliITSRawStreamSDD::fgkCodeLength[8] = {8, 18, 2, 3, 4, 5, 6, 7};
2906f4c2	58
2906f4c2	59	AliITSRawStreamSDD::AliITSRawStreamSDD(AliRawReader* rawReader) :
e56160b8	60	AliITSRawStream(rawReader),
e56160b8	61	fData(0),
e56160b8	62	fCarlosId(0),
a97b3678	63	fEventId(0),
e56160b8	64	fChannel(0),
a97b3678	65	fJitter(0),
	66	fNCarlos(kModulesPerDDL),
	67	fNfifo0(0),
	68	fNfifo1(0),
	69	fNfifo2(0),
	70	fNfifo3(0),
	71	fDDL(0){
2906f4c2	72	// create an object to read ITS SDD raw digits
1ba0280f	73
1ba0280f	74	for(Int_t i=0;i<2;i++){
a97b3678	75	for(Int_t ic=0;ic<kModulesPerDDL;ic++){
	76	fChannelData[ic][i]=0;
	77	fLastBit[ic][i]=0;
	78	fChannelCode[ic][i]=0;
	79	fReadCode[ic][i]=kFALSE;
	80	fReadBits[ic][i]=0;
	81	fTimeBin[ic][i]=0;
	82	fAnode[ic][i]=0;
	83	}
1ba0280f	84	fLowThreshold[i]=0;
1ba0280f	85	}
a97b3678	86	for(Int_t i=0;i<kDDLsNumber;i++) fSkip[i]=0;
a97b3678	87	fRawReader->Reset();
362c9d61	88	fRawReader->Select("ITSSDD");
1ba0280f	89
c27eb019	90	// fRawReader->SelectEquipment(17, 101, 101);//select this for test data
c27eb019	91	// fNCarlos = 8; //select this for test data
1ba0280f	92	}
	93
	94	UInt_t AliITSRawStreamSDD::ReadBits()
	95	{
	96	// read bits from the given channel
a97b3678	97	UInt_t result = (fChannelData[fCarlosId][fChannel] & ((1<<fReadBits[fCarlosId][fChannel]) - 1));
	98	fChannelData[fCarlosId][fChannel] >>= fReadBits[fCarlosId][fChannel];
	99	fLastBit[fCarlosId][fChannel] -= fReadBits[fCarlosId][fChannel];
1ba0280f	100	return result;
2906f4c2	101	}
2906f4c2	102
1ba0280f	103	Int_t AliITSRawStreamSDD::DecompAmbra(Int_t value) const
1ba0280f	104	{
a97b3678	105	// AMBRA decompression (from 8 to 10 bit)
a97b3678	106
1ba0280f	107	if ((value & 0x80) == 0) {
	108	return value & 0x7f;
	109	} else if ((value & 0x40) == 0) {
	110	return 0x081 + ((value & 0x3f) << 1);
	111	} else if ((value & 0x20) == 0) {
	112	return 0x104 + ((value & 0x1f) << 3);
	113	} else {
	114	return 0x208 + ((value & 0x1f) << 4);
	115	}
a97b3678	116
1ba0280f	117	}
2906f4c2	118
	119	Bool_t AliITSRawStreamSDD::Next()
	120	{
	121	// read the next raw digit
	122	// returns kFALSE if there is no digit left
	123
	124	fPrevModuleID = fModuleID;
a97b3678	125	fDDL=fRawReader->GetDDLID();
	126	Int_t ddln = fRawReader->GetDDLID();
	127	if(ddln <0) ddln=0;
	128	while (fSkip[ddln] < 9) {
c27eb019	129	if (!fRawReader->ReadNextInt(fData))return kFALSE;
a97b3678	130	if ((fData >> 30) == 0x01) continue; // JTAG word
	131	fSkip[ddln]++;
	132	}
	133
	134
	135	Int_t countFoot[kModulesPerDDL];
	136	for(Int_t i=0;i<kModulesPerDDL;i++) countFoot[i]=0;
c27eb019	137	UInt_t iCarlos0Word=805306368;
	138	UInt_t iCarlos1Word=805306369;
	139	UInt_t iCarlos2Word=805306370;
	140	UInt_t iCarlos3Word=805306371;
	141	UInt_t iCarlos4Word=805306372;
	142	UInt_t iCarlos5Word=805306373;
	143	UInt_t iCarlos6Word=805306374;
	144	UInt_t iCarlos7Word=805306375;
	145	UInt_t iCarlos8Word=805306376;
	146	UInt_t iCarlos9Word=805306377;
	147	UInt_t iCarlos10Word=805306378;
	148	UInt_t iCarlos11Word=805306379;
	149	UInt_t iFifo0Word=805306384;
	150	UInt_t iFifo1Word=805306385;
	151	UInt_t iFifo2Word=805306386;
	152	UInt_t iFifo3Word=805306387;
a97b3678	153	while (kTRUE) {
	154	if ((fChannel < 0) \|\| (fLastBit[fCarlosId][fChannel] < fReadBits[fCarlosId][fChannel])) {
	155
c27eb019	156	if (!fRawReader->ReadNextInt(fData)){
	157	return kFALSE; // read next word
	158	}
a97b3678	159	ddln = fRawReader->GetDDLID();
	160	if(ddln!=fDDL){
	161	Reset();
	162	for(Int_t icr=0;icr<kModulesPerDDL;icr++) countFoot[icr]=0;
	163	}
	164	if(ddln < 0 \|\| ddln > (kDDLsNumber-1)) ddln = 0;
	165	while (fSkip[ddln] < 9) {
c27eb019	166	if (!fRawReader->ReadNextInt(fData)){
	167	return kFALSE;
	168	}
a97b3678	169	if ((fData >> 30) == 0x01) continue; // JTAG word
	170	fSkip[ddln]++;
	171	}
	172
	173	fChannel = -1;
c27eb019	174	if((fData>=iCarlos0Word&&fData<=iCarlos11Word)\|\|(fData>=iFifo0Word&&fData<=iFifo3Word)){
	175	if(fData==iCarlos0Word){
	176	fCarlosId = 0;
	177	fNfifo0 = fCarlosId;
	178	}
	179	else if (fData==iCarlos1Word){
	180	fCarlosId = 1;
	181	fNfifo0 = fCarlosId;
	182	}
	183	else if (fData==iCarlos2Word){
	184	fCarlosId = 2;
	185	if(fNCarlos == 8) fNfifo1 = fCarlosId;
	186	else fNfifo0 = fCarlosId;
	187	}
	188	else if (fData==iCarlos3Word){
	189	fCarlosId = 3;
	190	fNfifo1 = fCarlosId;
	191	}
	192	else if (fData==iCarlos4Word){
	193	fCarlosId = 4;
	194	if(fNCarlos == 8) fNfifo2 = fCarlosId;
	195	else fNfifo1 = fCarlosId;
	196	}
	197	else if (fData==iCarlos5Word){
	198	fCarlosId = 5;
	199	if(fNCarlos == 8) fNfifo2 = fCarlosId;
	200	else fNfifo1 = fCarlosId;
	201	}
	202	else if (fData==iCarlos6Word){
	203	fCarlosId = 6;
	204	if(fNCarlos == 8) fNfifo3 = fCarlosId;
	205	else fNfifo2 = fCarlosId;
	206	}
	207	else if (fData==iCarlos7Word){
	208	fCarlosId = 7;
	209	if(fNCarlos == 8) fNfifo3 = fCarlosId;
	210	else fNfifo2 = fCarlosId;
	211	}
	212	else if (fData==iCarlos8Word){
	213	fCarlosId = 8;
	214	fNfifo2 = fCarlosId;
	215	}
	216	else if (fData==iCarlos9Word){
	217	fCarlosId = 9;
	218	fNfifo3 = fCarlosId;
	219	}
	220	else if (fData==iCarlos10Word){
	221	fCarlosId = 10;
	222	fNfifo3 = fCarlosId;
	223	}
	224	else if (fData==iCarlos11Word){
	225	fCarlosId = 11;
	226	fNfifo3 = fCarlosId;
	227	}
	228	else if (fData==iFifo0Word){
	229	fCarlosId = fNfifo0;
	230	}
	231	else if (fData==iFifo1Word){
	232	fCarlosId = fNfifo1;
	233	}
	234	else if (fData==iFifo2Word){
	235	fCarlosId = fNfifo2;
	236	}
	237	else if (fData==iFifo3Word){
238	fCarlosId = fNfifo3;
239	}
a97b3678	240	}
	241	if(fData==1059004191) continue;
	242	if (fNCarlos == 8 && (fCarlosId == 8 \|\| fCarlosId == 9 \|\|
	243	fCarlosId ==10 \|\| fCarlosId == 11))continue;
	244
	245	fModuleID = fgkDDLModuleMap[fRawReader->GetDDLID()][fCarlosId];
	246
	247	if ((fData >> 28) == 0x02) { // header
	248	fEventId = (fData >> 3) & 0x07FF;
	249	} else if ((fData >> 28) == 0x03) { // footer
	250	countFoot[fCarlosId]++; // stop before the last word (last word=jitter)
c27eb019	251	Bool_t exit=kTRUE;
	252	for(Int_t ic=0;ic<fNCarlos;ic++){
	253	if(countFoot[ic]<3) exit=kFALSE;
	254	}
	255	if(exit){
a97b3678	256	return kFALSE;
	257	}
	258	} else if ((fData >> 29) == 0x00) { // error
2906f4c2	259
c27eb019	260	if ((fData & 0x00000163) != 0) {
39a7c5cc	261	fRawReader->AddMajorErrorLog(kDataError,Form("Error code = %8.8x",fData));
39a7c5cc	262	AliWarning(Form("error codes = %8.8x",fData));
c27eb019	263	return kFALSE;
a97b3678	264	}
	265	} else if ((fData >> 30) == 0x01) { // JTAG word
	266	// ignored
	267	} else if ((fData >> 30) == 0x02) { // channel 0 data
	268
	269	fChannel = 0;
	270	} else if ((fData >> 30) == 0x03) { // channel 1 data
	271	fChannel = 1;
	272	} else { // unknown data format
39a7c5cc	273	fRawReader->AddMajorErrorLog(kDataFormatErr,Form("Invalid data %8.8x",fData));
39a7c5cc	274	AliWarning(Form("invalid data: %8.8x\n", fData));
a97b3678	275	return kFALSE;
	276	}
	277
	278	if (fChannel >= 0) { // add read word to the data
	279	fChannelData[fCarlosId][fChannel] +=
	280	(ULong64_t(fData & 0x3FFFFFFF) << fLastBit[fCarlosId][fChannel]);
	281	fLastBit[fCarlosId][fChannel] += 30;
	282	}
	283
	284	} else { // decode data
	285
	286	if (fReadCode[fCarlosId][fChannel]) {// read the next code word
	287	fChannelCode[fCarlosId][fChannel] = ReadBits();
	288	fReadCode[fCarlosId][fChannel] = kFALSE;
	289	fReadBits[fCarlosId][fChannel] = fgkCodeLength[fChannelCode[fCarlosId][fChannel]];
	290
	291	} else { // read the next data word
	292	UInt_t data = ReadBits();
	293	fReadCode[fCarlosId][fChannel] = kTRUE;
	294	fReadBits[fCarlosId][fChannel] = 3;
	295	if (fChannelCode[fCarlosId][fChannel] == 0) { // set the time bin
	296	fTimeBin[fCarlosId][fChannel] = data;
	297	} else if (fChannelCode[fCarlosId][fChannel] == 1) { // next anode
	298	fTimeBin[fCarlosId][fChannel] = 0;
	299	fAnode[fCarlosId][fChannel]++;
	300
	301	}else { // ADC signal data
	302	fSignal = DecompAmbra(data + (1 << fChannelCode[fCarlosId][fChannel]) + fLowThreshold[fChannel]);
	303	fCoord1 = fAnode[fCarlosId][fChannel];
	304	fCoord2 = fTimeBin[fCarlosId][fChannel];
	305	fTimeBin[fCarlosId][fChannel]++;
	306	return kTRUE;
	307	}
	308	}
	309	}
	310	}
	311	return kFALSE;
2906f4c2	312
2906f4c2	313	}
1ba0280f	314
a97b3678	315	void AliITSRawStreamSDD::Reset(){
	316	//reset data member for a new ddl
	317
	318	for(Int_t i=0;i<2;i++){
	319	for(Int_t ic=0;ic<kModulesPerDDL;ic++){
	320	fChannelData[ic][i]=0;
	321	fLastBit[ic][i]=0;
	322	fChannelCode[ic][i]=0;
	323	fReadCode[ic][i]=kFALSE;
	324	fReadBits[ic][i]=0;
	325	fTimeBin[ic][i]=0;
	326	fAnode[ic][i]=0;
	327	}
	328	fLowThreshold[i]=0;
	329	}
	330	fChannel=-1;
	331	fDDL=fRawReader->GetDDLID();
	332	}