[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"
#include "Riostream.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),
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<kFifoWords;i++) fNfifo[i]=0;
  for(Int_t i=0;i<kDDLsNumber;i++) fSkip[i]=0;
  fRawReader->Reset();
  fRawReader->Select("ITSSDD");

  //  fNCarlos = 8; //select this for test data
  for(Short_t i=0; i<kCarlosWords; i++) iCarlosWord[i]=805306368+i;
  for(Short_t i=0; i<kFifoWords; i++) iFifoWord[i]=805306384+i;
}

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;
  Bool_t kSkip = ResetSkip(ddln);
  if(!kSkip) return kSkip;

  for(Int_t i=0;i<kModulesPerDDL;i++) iCountFoot[i]=0; 

  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();
      if(ddln < 0 || ddln > (kDDLsNumber-1)) ddln  = 0;
      kSkip = ResetSkip(ddln);
      if(!kSkip) return kFALSE;  // read next word

      fChannel = -1;
      if((fData>=iCarlosWord[0]&&fData<=iCarlosWord[11])||(fData>=iFifoWord[0]&&fData<=iFifoWord[3])){
	for(Short_t ik=0;ik<kCarlosWords;ik++) {
	  if(fData==iCarlosWord[ik]) {
	    fCarlosId = ik;
	    Int_t iFifoIdx = ik/3;
	    if(fNCarlos == 8) {
	      if(ik==2) iFifoIdx = 1;
	      if(ik==4 || ik==5)  iFifoIdx = 2;
	      if(ik==6 || ik==7)  iFifoIdx = 3 ;
	    }	    
	    fNfifo[iFifoIdx] = fCarlosId;
	  }
	}
	for(Short_t ik=0;ik<kFifoWords;ik++) {
	  if (fData==iFifoWord[ik]) { 
	    fCarlosId = fNfifo[ik];	    
	  }
	}
	/*
	if(fData==iCarlosWord[0]){
	  fCarlosId = 0;
	  fNfifo[0] = fCarlosId;
	}
	else if (fData==iCarlosWord[1]){
	  fCarlosId = 1;
	  fNfifo[0] = fCarlosId;
	}
	else if (fData==iCarlosWord[2]){
	  fCarlosId = 2;
	  if(fNCarlos == 8) fNfifo[1] = fCarlosId;
	  else fNfifo[0] = fCarlosId;
	}
	else if (fData==iCarlosWord[3]){
	  fCarlosId = 3;
	  fNfifo[1] = fCarlosId;
	}
	else if (fData==iCarlosWord[4]){
	  fCarlosId = 4;
	  if(fNCarlos == 8) fNfifo[2] = fCarlosId;
	  else fNfifo[1] = fCarlosId;
	}
	else if (fData==iCarlosWord[5]){
	  fCarlosId = 5;
	  if(fNCarlos == 8) fNfifo[2] = fCarlosId;
	  else fNfifo[1] = fCarlosId;
	}
	else if (fData==iCarlosWord[6]){
	  fCarlosId = 6;
	  if(fNCarlos == 8) fNfifo[3] = fCarlosId;
	  else fNfifo[2] = fCarlosId;
	}
	else if (fData==iCarlosWord[7]){
	  fCarlosId = 7;
	  if(fNCarlos == 8) fNfifo[3] = fCarlosId;
	  else fNfifo[2] = fCarlosId;
	}
	else if (fData==iCarlosWord[8]){
	  fCarlosId = 8;
	  fNfifo[2] = fCarlosId;
	}
	else if (fData==iCarlosWord[9]){
	  fCarlosId = 9;
	  fNfifo[3] = fCarlosId;
	}
	else if (fData==iCarlosWord[10]){
	  fCarlosId = 10;
	  fNfifo[3] = fCarlosId;
	}
	else if (fData==iCarlosWord[11]){
	  fCarlosId = 11;
	  fNfifo[3] = fCarlosId;
	}
	*/

      }
      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
        iCountFoot[fCarlosId]++; // stop before the last word (last word=jitter)
	Bool_t exit=kTRUE;
	for(Int_t ic=0;ic<fNCarlos;ic++){
	  if(iCountFoot[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;
  }
  for(Int_t i=0;i<kModulesPerDDL;i++) iCountFoot[i]=0;
  
  fChannel=-1;
  fDDL=fRawReader->GetDDLID();
}

Bool_t AliITSRawStreamSDD::ResetSkip(Int_t ddln){
  while (fSkip[ddln] < 9) {
    if (!fRawReader->ReadNextInt(fData))return kFALSE;
    if ((fData >> 30) == 0x01) continue;  // JTAG word
    fSkip[ddln]++;
  }
  return kTRUE;
}
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"
765a9f95	27	#include "Riostream.h"
2906f4c2	28
	29	ClassImp(AliITSRawStreamSDD)
	30
2906f4c2	31	const Int_t AliITSRawStreamSDD::fgkDDLModuleMap[kDDLsNumber][kModulesPerDDL] = {
a97b3678	32
	33	{240,241,242,246,247,248,252,253,254,258,259,260},
	34	{264,265,266,270,271,272,276,277,278,282,283,284},
	35	{288,289,290,294,295,296,300,301,302,306,307,308},
	36	{312,313,314,318,319,320,-1,-1,-1,-1,-1,-1},
	37	{243,244,245,249,250,251,255,256,257,261,262,263},
	38	{267,268,269,273,274,275,279,280,281,285,286,287},
	39	{291,292,293,297,298,299,303,304,305,309,310,311},
	40	{315,316,317,321,322,323,-1,-1,-1,-1,-1,-1},
	41	{324,325,326,327,332,333,334,335,340,341,342,343},
	42	{348,349,350,351,356,357,358,359,364,365,366,367},
	43	{372,373,374,375,380,381,382,383,388,389,390,391},
	44	{396,397,398,399,404,405,406,407,412,413,414,415},
	45	{420,421,422,423,428,429,430,431,436,437,438,439},
	46	{444,445,446,447,452,453,454,455,460,461,462,463},
	47	{468,469,470,471,476,477,478,479,484,485,486,487},
	48	{492,493,494,495,-1,-1,-1,-1,-1,-1,-1,-1},
	49	{328,329,330,331,336,337,338,339,344,345,346,347},
	50	{352,353,354,355,360,361,362,363,368,369,370,371},
	51	{376,377,378,379,384,385,386,387,392,393,394,395},
	52	{400,401,402,403,408,409,410,411,416,417,418,419},
	53	{424,425,426,427,432,433,434,435,440,441,442,443},
	54	{448,449,450,451,456,457,458,459,464,465,466,467},
	55	{472,473,474,475,480,481,482,483,488,489,490,491},
	56	{496,497,498,499,-1,-1,-1,-1,-1,-1,-1,-1}};
1ba0280f	57
1ba0280f	58	const UInt_t AliITSRawStreamSDD::fgkCodeLength[8] = {8, 18, 2, 3, 4, 5, 6, 7};
2906f4c2	59
2906f4c2	60	AliITSRawStreamSDD::AliITSRawStreamSDD(AliRawReader* rawReader) :
e56160b8	61	AliITSRawStream(rawReader),
e56160b8	62	fData(0),
e56160b8	63	fCarlosId(0),
a97b3678	64	fEventId(0),
e56160b8	65	fChannel(0),
a97b3678	66	fJitter(0),
a97b3678	67	fNCarlos(kModulesPerDDL),
a97b3678	68	fDDL(0){
2906f4c2	69	// create an object to read ITS SDD raw digits
1ba0280f	70
1ba0280f	71	for(Int_t i=0;i<2;i++){
a97b3678	72	for(Int_t ic=0;ic<kModulesPerDDL;ic++){
	73	fChannelData[ic][i]=0;
	74	fLastBit[ic][i]=0;
	75	fChannelCode[ic][i]=0;
	76	fReadCode[ic][i]=kFALSE;
	77	fReadBits[ic][i]=0;
	78	fTimeBin[ic][i]=0;
	79	fAnode[ic][i]=0;
	80	}
1ba0280f	81	fLowThreshold[i]=0;
1ba0280f	82	}
765a9f95	83	for(Int_t i=0;i<kFifoWords;i++) fNfifo[i]=0;
a97b3678	84	for(Int_t i=0;i<kDDLsNumber;i++) fSkip[i]=0;
a97b3678	85	fRawReader->Reset();
362c9d61	86	fRawReader->Select("ITSSDD");
1ba0280f	87
c27eb019	88	// fNCarlos = 8; //select this for test data
765a9f95	89	for(Short_t i=0; i<kCarlosWords; i++) iCarlosWord[i]=805306368+i;
765a9f95	90	for(Short_t i=0; i<kFifoWords; i++) iFifoWord[i]=805306384+i;
1ba0280f	91	}
	92
	93	UInt_t AliITSRawStreamSDD::ReadBits()
	94	{
	95	// read bits from the given channel
a97b3678	96	UInt_t result = (fChannelData[fCarlosId][fChannel] & ((1<<fReadBits[fCarlosId][fChannel]) - 1));
	97	fChannelData[fCarlosId][fChannel] >>= fReadBits[fCarlosId][fChannel];
	98	fLastBit[fCarlosId][fChannel] -= fReadBits[fCarlosId][fChannel];
1ba0280f	99	return result;
2906f4c2	100	}
2906f4c2	101
1ba0280f	102	Int_t AliITSRawStreamSDD::DecompAmbra(Int_t value) const
1ba0280f	103	{
a97b3678	104	// AMBRA decompression (from 8 to 10 bit)
a97b3678	105
1ba0280f	106	if ((value & 0x80) == 0) {
	107	return value & 0x7f;
	108	} else if ((value & 0x40) == 0) {
	109	return 0x081 + ((value & 0x3f) << 1);
	110	} else if ((value & 0x20) == 0) {
	111	return 0x104 + ((value & 0x1f) << 3);
	112	} else {
	113	return 0x208 + ((value & 0x1f) << 4);
	114	}
a97b3678	115
1ba0280f	116	}
2906f4c2	117
	118	Bool_t AliITSRawStreamSDD::Next()
	119	{
	120	// read the next raw digit
	121	// returns kFALSE if there is no digit left
	122
	123	fPrevModuleID = fModuleID;
a97b3678	124	fDDL=fRawReader->GetDDLID();
	125	Int_t ddln = fRawReader->GetDDLID();
	126	if(ddln <0) ddln=0;
765a9f95	127	Bool_t kSkip = ResetSkip(ddln);
	128	if(!kSkip) return kSkip;
	129
	130	for(Int_t i=0;i<kModulesPerDDL;i++) iCountFoot[i]=0;
a97b3678	131
a97b3678	132	while (kTRUE) {
	133	if ((fChannel < 0) \|\| (fLastBit[fCarlosId][fChannel] < fReadBits[fCarlosId][fChannel])) {
	134
c27eb019	135	if (!fRawReader->ReadNextInt(fData)){
	136	return kFALSE; // read next word
	137	}
a97b3678	138	ddln = fRawReader->GetDDLID();
765a9f95	139
765a9f95	140	if(ddln!=fDDL) Reset();
a97b3678	141	if(ddln < 0 \|\| ddln > (kDDLsNumber-1)) ddln = 0;
765a9f95	142	kSkip = ResetSkip(ddln);
765a9f95	143	if(!kSkip) return kFALSE; // read next word
a97b3678	144
a97b3678	145	fChannel = -1;
765a9f95	146	if((fData>=iCarlosWord[0]&&fData<=iCarlosWord[11])\|\|(fData>=iFifoWord[0]&&fData<=iFifoWord[3])){
	147	for(Short_t ik=0;ik<kCarlosWords;ik++) {
	148	if(fData==iCarlosWord[ik]) {
	149	fCarlosId = ik;
	150	Int_t iFifoIdx = ik/3;
	151	if(fNCarlos == 8) {
	152	if(ik==2) iFifoIdx = 1;
	153	if(ik==4 \|\| ik==5) iFifoIdx = 2;
	154	if(ik==6 \|\| ik==7) iFifoIdx = 3 ;
	155	}
	156	fNfifo[iFifoIdx] = fCarlosId;
	157	}
	158	}
	159	for(Short_t ik=0;ik<kFifoWords;ik++) {
	160	if (fData==iFifoWord[ik]) {
	161	fCarlosId = fNfifo[ik];
	162	}
	163	}
	164	/*
	165	if(fData==iCarlosWord[0]){
c27eb019	166	fCarlosId = 0;
765a9f95	167	fNfifo[0] = fCarlosId;
c27eb019	168	}
765a9f95	169	else if (fData==iCarlosWord[1]){
c27eb019	170	fCarlosId = 1;
765a9f95	171	fNfifo[0] = fCarlosId;
c27eb019	172	}
765a9f95	173	else if (fData==iCarlosWord[2]){
c27eb019	174	fCarlosId = 2;
765a9f95	175	if(fNCarlos == 8) fNfifo[1] = fCarlosId;
765a9f95	176	else fNfifo[0] = fCarlosId;
c27eb019	177	}
765a9f95	178	else if (fData==iCarlosWord[3]){
c27eb019	179	fCarlosId = 3;
765a9f95	180	fNfifo[1] = fCarlosId;
c27eb019	181	}
765a9f95	182	else if (fData==iCarlosWord[4]){
c27eb019	183	fCarlosId = 4;
765a9f95	184	if(fNCarlos == 8) fNfifo[2] = fCarlosId;
765a9f95	185	else fNfifo[1] = fCarlosId;
c27eb019	186	}
765a9f95	187	else if (fData==iCarlosWord[5]){
c27eb019	188	fCarlosId = 5;
765a9f95	189	if(fNCarlos == 8) fNfifo[2] = fCarlosId;
765a9f95	190	else fNfifo[1] = fCarlosId;
c27eb019	191	}
765a9f95	192	else if (fData==iCarlosWord[6]){
c27eb019	193	fCarlosId = 6;
765a9f95	194	if(fNCarlos == 8) fNfifo[3] = fCarlosId;
765a9f95	195	else fNfifo[2] = fCarlosId;
c27eb019	196	}
765a9f95	197	else if (fData==iCarlosWord[7]){
c27eb019	198	fCarlosId = 7;
765a9f95	199	if(fNCarlos == 8) fNfifo[3] = fCarlosId;
765a9f95	200	else fNfifo[2] = fCarlosId;
c27eb019	201	}
765a9f95	202	else if (fData==iCarlosWord[8]){
c27eb019	203	fCarlosId = 8;
765a9f95	204	fNfifo[2] = fCarlosId;
c27eb019	205	}
765a9f95	206	else if (fData==iCarlosWord[9]){
c27eb019	207	fCarlosId = 9;
765a9f95	208	fNfifo[3] = fCarlosId;
c27eb019	209	}
765a9f95	210	else if (fData==iCarlosWord[10]){
c27eb019	211	fCarlosId = 10;
765a9f95	212	fNfifo[3] = fCarlosId;
c27eb019	213	}
765a9f95	214	else if (fData==iCarlosWord[11]){
c27eb019	215	fCarlosId = 11;
765a9f95	216	fNfifo[3] = fCarlosId;
c27eb019	217	}
765a9f95	218	*/
765a9f95	219
a97b3678	220	}
	221	if(fData==1059004191) continue;
	222	if (fNCarlos == 8 && (fCarlosId == 8 \|\| fCarlosId == 9 \|\|
	223	fCarlosId ==10 \|\| fCarlosId == 11))continue;
	224
	225	fModuleID = fgkDDLModuleMap[fRawReader->GetDDLID()][fCarlosId];
	226
	227	if ((fData >> 28) == 0x02) { // header
	228	fEventId = (fData >> 3) & 0x07FF;
	229	} else if ((fData >> 28) == 0x03) { // footer
765a9f95	230	iCountFoot[fCarlosId]++; // stop before the last word (last word=jitter)
c27eb019	231	Bool_t exit=kTRUE;
c27eb019	232	for(Int_t ic=0;ic<fNCarlos;ic++){
765a9f95	233	if(iCountFoot[ic]<3) exit=kFALSE;
c27eb019	234	}
c27eb019	235	if(exit){
a97b3678	236	return kFALSE;
	237	}
	238	} else if ((fData >> 29) == 0x00) { // error
2906f4c2	239
c27eb019	240	if ((fData & 0x00000163) != 0) {
39a7c5cc	241	fRawReader->AddMajorErrorLog(kDataError,Form("Error code = %8.8x",fData));
39a7c5cc	242	AliWarning(Form("error codes = %8.8x",fData));
c27eb019	243	return kFALSE;
a97b3678	244	}
	245	} else if ((fData >> 30) == 0x01) { // JTAG word
	246	// ignored
	247	} else if ((fData >> 30) == 0x02) { // channel 0 data
	248
	249	fChannel = 0;
	250	} else if ((fData >> 30) == 0x03) { // channel 1 data
	251	fChannel = 1;
	252	} else { // unknown data format
39a7c5cc	253	fRawReader->AddMajorErrorLog(kDataFormatErr,Form("Invalid data %8.8x",fData));
39a7c5cc	254	AliWarning(Form("invalid data: %8.8x\n", fData));
a97b3678	255	return kFALSE;
	256	}
	257
	258	if (fChannel >= 0) { // add read word to the data
	259	fChannelData[fCarlosId][fChannel] +=
	260	(ULong64_t(fData & 0x3FFFFFFF) << fLastBit[fCarlosId][fChannel]);
	261	fLastBit[fCarlosId][fChannel] += 30;
	262	}
	263
	264	} else { // decode data
	265
	266	if (fReadCode[fCarlosId][fChannel]) {// read the next code word
	267	fChannelCode[fCarlosId][fChannel] = ReadBits();
	268	fReadCode[fCarlosId][fChannel] = kFALSE;
	269	fReadBits[fCarlosId][fChannel] = fgkCodeLength[fChannelCode[fCarlosId][fChannel]];
	270
	271	} else { // read the next data word
	272	UInt_t data = ReadBits();
	273	fReadCode[fCarlosId][fChannel] = kTRUE;
	274	fReadBits[fCarlosId][fChannel] = 3;
	275	if (fChannelCode[fCarlosId][fChannel] == 0) { // set the time bin
	276	fTimeBin[fCarlosId][fChannel] = data;
	277	} else if (fChannelCode[fCarlosId][fChannel] == 1) { // next anode
	278	fTimeBin[fCarlosId][fChannel] = 0;
	279	fAnode[fCarlosId][fChannel]++;
	280
	281	}else { // ADC signal data
	282	fSignal = DecompAmbra(data + (1 << fChannelCode[fCarlosId][fChannel]) + fLowThreshold[fChannel]);
	283	fCoord1 = fAnode[fCarlosId][fChannel];
	284	fCoord2 = fTimeBin[fCarlosId][fChannel];
	285	fTimeBin[fCarlosId][fChannel]++;
	286	return kTRUE;
	287	}
	288	}
	289	}
	290	}
	291	return kFALSE;
2906f4c2	292
2906f4c2	293	}
1ba0280f	294
a97b3678	295	void AliITSRawStreamSDD::Reset(){
765a9f95	296
a97b3678	297	//reset data member for a new ddl
a97b3678	298	for(Int_t i=0;i<2;i++){
	299	for(Int_t ic=0;ic<kModulesPerDDL;ic++){
	300	fChannelData[ic][i]=0;
	301	fLastBit[ic][i]=0;
	302	fChannelCode[ic][i]=0;
	303	fReadCode[ic][i]=kFALSE;
	304	fReadBits[ic][i]=0;
	305	fTimeBin[ic][i]=0;
	306	fAnode[ic][i]=0;
	307	}
	308	fLowThreshold[i]=0;
	309	}
765a9f95	310	for(Int_t i=0;i<kModulesPerDDL;i++) iCountFoot[i]=0;
765a9f95	311
a97b3678	312	fChannel=-1;
	313	fDDL=fRawReader->GetDDLID();
	314	}
765a9f95	315
	316	Bool_t AliITSRawStreamSDD::ResetSkip(Int_t ddln){
	317	while (fSkip[ddln] < 9) {
	318	if (!fRawReader->ReadNextInt(fData))return kFALSE;
	319	if ((fData >> 30) == 0x01) continue; // JTAG word
	320	fSkip[ddln]++;
	321	}
	322	return kTRUE;
	323	}
	324