Line data    Source code

       1             : //-*- Mode: C++ -*-
       2             : // $Id$
       3             : #ifndef ALIHLTTPCHWCFEXTRACTORUNIT_H
       4             : #define ALIHLTTPCHWCFEXTRACTORUNIT_H
       5             : //* This file is property of and copyright by the ALICE HLT Project        * 
       6             : //* ALICE Experiment at CERN, All rights reserved.                         *
       7             : //* See cxx source for full Copyright notice                               *
       8             : 
       9             : //  @file   AliHLTTPCHWCFExtractorUnit.h
      10             : //  @author Sergey Gorbunov <sergey.gorbunov@fias.uni-frankfurt.de>
      11             : //  @author Torsten Alt <talt@cern.ch> 
      12             : //  @brief  Channel Extractor unit of FPGA ClusterFinder Emulator for TPC
      13             : //  @brief  ( see AliHLTTPCHWCFEmulator class )
      14             : //  @note
      15             : 
      16             : #include "AliHLTDataTypes.h"
      17             : #include "AliHLTTPCHWCFDataTypes.h"
      18             : 
      19             : class AliHLTTPCHWCFExtractorUnit
      20             : {
      21             :  public:  
      22             : 
      23             :   /** standard constructor */
      24             :   AliHLTTPCHWCFExtractorUnit();
      25             :   
      26             :   /** destructor */
      27             :   ~AliHLTTPCHWCFExtractorUnit();
      28             : 
      29             :   /** initialisation **/
      30             :   int Init( const AliHLTUInt32_t *mapping, const AliHLTTPCClusterMCLabel *mcLabels, AliHLTUInt32_t nMCLabels );
      31             : 
      32             :   /** RCU2 flag */
      33           0 :   void SetRCU2Flag( bool RCU2 ){ fRCU2Flag = RCU2; }
      34             : 
      35             :   /** input stream of data **/
      36             :   int InputStream( AliHLTUInt32_t word );
      37             : 
      38             :   /** input "end of data" signal **/  
      39             :   int InputEndOfData();
      40             : 
      41             :   /** output stream of data **/
      42             :   const AliHLTTPCHWCFBunch *OutputStream();
      43             : 
      44             :  private: 
      45             : 
      46             :   enum AliHLTTPCHWCFExtractorStatus{ kReadingData, kReadingRCU, kFinishing, kStop };  
      47             :   enum AliHLTTPCHWCFExtractorInputStatus{ kEmpty, kData, kEndOfData };  
      48             :   
      49             :   /** copy constructor prohibited */
      50             :   AliHLTTPCHWCFExtractorUnit(const AliHLTTPCHWCFExtractorUnit&);
      51             :   /** assignment operator prohibited */
      52             :   AliHLTTPCHWCFExtractorUnit& operator=(const AliHLTTPCHWCFExtractorUnit&);  
      53             : 
      54             :   AliHLTTPCHWCFExtractorStatus fStatus; // status of the unit
      55             :   AliHLTUInt32_t fInput;  // current input
      56             :   AliHLTTPCHWCFExtractorInputStatus fInputStatus; // input status
      57             :  
      58             :   const AliHLTUInt32_t *fkMapping; // mapping array
      59             :   AliHLTTPCHWCFBunch fMemory[2];  // memory for current bunch and pending output 
      60             :   AliHLTTPCHWCFBunch *fBunch;     // current bunch
      61             :   bool fPendingOutput; // is there something in the output buffer
      62             : 
      63             :   AliHLTInt32_t fChannelNumWordsLeft; // n 10-bit words left in the channel
      64             :   AliHLTInt32_t fBunchNumWordsLeft;// n 10-bit words left in the bunch
      65             :   AliHLTInt32_t fBunchCurrentTime; // timebin of the curent signal
      66             :   bool fRCU2Flag; // do not split input data in two branches for RCU 2
      67             : 
      68             :   const AliHLTTPCClusterMCLabel *fkMCLabels; // pointer to mc labels
      69             :   AliHLTUInt32_t fNMCLabels;                 // N mc labels
      70             :   AliHLTUInt32_t fCurrentMCLabel;            // mc label to read next
      71             : };
      72             : 
      73             : #endif