CCAENModule.cpp

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/*
                    GNU GENERAL PUBLIC LICENSE
                       Version 2, June 1991

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*/

#include "CCAENModule.h"
#include "CAENcard.h"
#include "TCLInterpreter.h"
#include "CIntConfigParam.h"
#include "CBoolConfigParam.h"
#include "CIntArrayParam.h"
#include <assert.h>
#include <iostream.h>

static const int CHANNELS(32);
static const int WAITLOOPS(20);
CCAENModule::CCAENModule(const string & rName,
                        CTCLInterpreter& rInterpreter) :
  CDigitizerModule(rName, rInterpreter),
  m_pCAENcard(0),
  m_fMultiEvent(false)
{
  // Setup our configuration parameters:
  
  AddIntParam(string("crate"), 0);
  AddIntParam(string("slot"), -1);   // Force legal config.
  AddIntArrayParam(string("threshold"), CHANNELS, 0);
  AddBoolParam(string("keepunder"), false);
  AddBoolParam(string("keepoverflow"), false);
  AddBoolParam(string("card"), true);
  AddBoolParam(string("geo"),  true);    // Geographical addressing.
  AddIntArrayParam(string("enable"), CHANNELS, 1);
  AddIntParam(string("base"), 0);
  AddBoolParam(string("multievent"), false);
  AddIntParam(string("fastclearwindow"), 0);

  // This parameter is added to allow us to source in 
  // SpecTcl configuration scripts too!!

  AddStringArrayParam(string("parameters"), 32);
  
  // Now set the appropriate ranges for the integer parameters.
  // This is a two step process for each parameter (or array).
  // - use Find to locate the parameter and 
  // - Invoke the found object's setRange member.
  // 
  // Since we have just entered these objects in the 
  // parser's configuration list, failing to find them
  // is considered a fatal error signalled via a failed
  // assert.
  
  ParameterIterator i;
  CIntConfigParam*  pInt;
  CIntArrayParam*   pArray;

  // Crate numbers are in the range [0-7]:

  i = Find(string("crate"));
  assert(i != end());
  pInt = (CIntConfigParam*)*i;
  pInt->setRange(0,7);

  // Slot numbers range from 2 to 21 since
  // since slot 1 is a system controller.
  
  i    = Find(string("slot"));
  assert(i != end());
  pInt = (CIntConfigParam*)*i;
  pInt->setRange(1, 21);
   
  // Thresholds have the range 0 - 4000mV.
  
  i      = Find(string("threshold"));
  assert(i != end());
  pArray = (CIntArrayParam*)*i;
  pArray->setRange(0, 4000);
  
  // Ranges have values 0 or 1 (really flags).
  
  i      = Find(string("enable"));
  assert(i != end());
  pArray = (CIntArrayParam*)*i;
  pArray->setRange(0,1);

  // Fast clear window runs from 0, 2000000:

  i = Find(string("fastclearwindow"));
  assert(i != end());
  pInt = (CIntConfigParam*)*i;
  pInt->setRange(0, 2000000);
  
}
void
CCAENModule::Initialize()
{
  delete m_pCAENcard;    // Kill off the old card.
  
  // Figure out the card slot so that we can construct
  // the new card.
  
  ParameterIterator     i;
  CIntConfigParam*      pInt;
  CIntArrayParam*       pArray;
  CBoolConfigParam* pBool;
  
  i = Find("crate");
  assert(i != end());
  pInt = (CIntConfigParam*)*i;
  int nCrate = pInt->getOptionValue();


  bool fGeo;

  i   = Find("slot");
  assert(i != end());
  pInt= (CIntConfigParam*)*i;
  int nSlot = pInt->getOptionValue();
  
  // Could be set via base address with slot programmed:
  
  i = Find("base");
  assert(i != end());
  pInt = (CIntConfigParam*)*i;
  int nBase = pInt->getOptionValue();

  // Figure out which to use for the config:

  i = Find("geo");
  assert(i != end());
  pBool = (CBoolConfigParam*)*i;
  fGeo   = pBool->getOptionValue();

  m_pCAENcard = new CAENcard(nSlot, nCrate, fGeo, nBase);
  
  // Now we can configure the new card according to the
  // remaining parameters:
  
  // Set the thresholds: 1mv == 1 chan so no conversion
  // is required;
  
    i   = Find("threshold");
    assert(i != end());
    pArray = (CIntArrayParam*)*i;
    for(int c = 0; c < CHANNELS; c++) {
      m_pCAENcard->setThreshold(c, (*pArray)[c]);
    }
  
  // Determine which parameters will be excluded.
  
    i   = Find("keepunder");
    assert(i != end());
    pBool= (CBoolConfigParam*)*i;
    if(pBool->getOptionValue()) {
      m_pCAENcard->keepUnderThresholdData();
    }
    else {
      m_pCAENcard->discardUnderThresholdData();
    }
    i   = Find("keepoverflow");
    assert(i != end());
    pBool = (CBoolConfigParam*)*i;
    if(pBool->getOptionValue()) {
      m_pCAENcard->keepOverflowData();
    }
    else {
      m_pCAENcard->discardOverflowData();
    }

  // Figure out if the card is enabled, and which
  // individual channels are enabled.
  
    i = Find("card");
    assert(i != end());
    pBool = (CBoolConfigParam*)*i;
    if(pBool->getOptionValue()) {
      m_pCAENcard->cardOn();
    }
    else {
      m_pCAENcard->cardOff();
    }
    i = Find("enable");
    assert(i != end());
    pArray = (CIntArrayParam*)*i;
    for(int c = 0; c < CHANNELS; c++) {
      if((*pArray)[c]) {
        m_pCAENcard->channelOn(c);
      }
      else {
        m_pCAENcard->channelOff(c);
      }
    }
    // Multievent mode?

    i = Find("multievent");
    assert(i != end());
    pBool = (CBoolConfigParam*)*i;
    m_fMultiEvent = pBool->getOptionValue();


    // Fast clear window:
    
    i = Find("fastclearwindow");
    assert(i != end());
    pInt = (CIntConfigParam*)*i;
    float ns = (float)(pInt->getOptionValue());
    int   registervalue = (int)((ns/31.25) + 0.5);
    m_pCAENcard->setFastClearWindow(registervalue);
    
    // Finally set the begin run state:
    
    m_pCAENcard->resetEventCounter();
    m_pCAENcard->clearData();
}
void
CCAENModule::Prepare()
{
  if(!m_fMultiEvent) 
    m_pCAENcard->clearData();
}
void CCAENModule::Read(DAQWordBufferPtr& rBuffer)
{

  if(m_pCAENcard){
    for(int i = 0; i < WAITLOOPS; i++) {
      if(m_pCAENcard->dataPresent()) break;
    }
    if(m_pCAENcard->dataPresent()) 
      m_pCAENcard->readEvent(rBuffer);
  }
}
int
CCAENModule::Read(void* pBuffer)
{
  if(m_pCAENcard) {
    if(m_pCAENcard->dataPresent())
      return (m_pCAENcard->readEvent(pBuffer)/sizeof(short));
       
  }
  else {
    return 0;                   // Nonexistent cards give no data.
  }
}
void
CCAENModule::Clear()
{
  if(m_pCAENcard) m_pCAENcard->clearData();
}


CCAENModule::~CCAENModule() {
  delete m_pCAENcard;
}

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