/**************************************************************************
 * 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.                  *
 **************************************************************************/

///////////////////////////////////////////////////////////////////////////////
///
/// This class provides access to CC-USB data in test bench raw data.
/// Author: guernane@lpsc.in2p3.fr
///
///////////////////////////////////////////////////////////////////////////////

#include "AliEMCALCCUSBRawStream.h"
#include "AliRawReader.h"

ClassImp(AliEMCALCCUSBRawStream)

AliEMCALCCUSBRawStream::AliEMCALCCUSBRawStream(AliRawReader* rawReader) :
  fRawReader(rawReader),
  fData(0),
  fHeader(0),
  fOptHeader(0),
  fEventLength(0),
  fEOBuffer(0)
{
  fRawReader = rawReader;

  fRawReader->Reset();
  fRawReader->SelectEquipment(1, 1, 1);
  
  for(Int_t i = 0 ; i < fgkNTDC; i++ )          fTDC[i] = 0 ;             
  for(Int_t i = 0 ; i < fgkNQDC; i++ )          fQDC[i] = 0 ;                         
  for(Int_t i = 0 ; i < fgkNScalerCCUSB; i++ )  fScalerCCUSB[i]  = 0;          
  for(Int_t i = 0 ; i < fgkNScalerLecroy; i++ ) fScalerLecroy[i] = 0;       
}

Bool_t AliEMCALCCUSBRawStream::Next()
{
// read the next raw digit
// returns kFALSE if there is no digit left
	
	if ( fEOBuffer == 0xFFFF ) { fEOBuffer = 0; return kFALSE; }
	
	if (!fRawReader->ReadNextInt((UInt_t&) fHeader)) {
		Error("Next", "No header");
		return kFALSE;
	}
	
	if (!fRawReader->ReadNextInt((UInt_t&) fOptHeader)) {
		Error("Next", "No optional header");
		return kFALSE;
	}
  
	if (!fRawReader->ReadNextInt((UInt_t&) fEventLength)) {
		Error("Next", "No event length");
		return kFALSE;
	}
	
	for (Int_t i = 0; i < fgkNScalerCCUSB; i++) 
	{  
		if (!fRawReader->ReadNext((UChar_t*)&fData,8)) 
		{
			Error("Next", "Internal CC-USB scaler issing");
			return kFALSE;
		}
    
		fScalerCCUSB[i] = fData;
	}
	
	for (Int_t i = 0; i < fgkNScalerLecroy; i++) 
	{  
		if (!fRawReader->ReadNext((UChar_t*)&fData,8)) 
		{
			Error("Next", "Lecroy scaler missing");
			return kFALSE;
		}
    
		fScalerLecroy[i] = fData;
	}
	
	for (Int_t i = 0; i < fgkNTDC; i++) 
	{  
		if (!fRawReader->ReadNextInt(fData)) 
		{
			Error("Next", "Incomplete TDC equipment");
			return kFALSE;
		}
    
		fTDC[i] = fData;
	}
  
	for (Int_t i = 0; i < fgkNQDC; i++) 
	{  
		if (!fRawReader->ReadNextInt(fData)) 
		{
			Error("Next", "Incomplete QDC equipment");
			return kFALSE;
		}
    
		fQDC[i] = fData;
	}
  
	if ( !fRawReader->ReadNextInt((UInt_t&) fEOBuffer) ) 
	{
		Error("Next", "No end of buffer");
		return kFALSE;
	}

  return kTRUE;
}