CSIS3820.cpp

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/*
                    GNU GENERAL PUBLIC LICENSE
                       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 Everyone is permitted to copy and distribute verbatim copies
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*/

#include <config.h>

#include "CSIS3820.h"
#include <string>
#include <stdio.h>
#include <stdlib.h>

#ifdef HAVE_STD_NAMESPACE
using namespace std;
#endif


static const int ModuleSize(0xb00);


// Below are register offsets into the module:

                                // CSR
static const unsigned long CSR(0);
static const unsigned int  LEDOn(1);
static const unsigned int  LEDOff(0x10000);
static const unsigned int  LEDIsOnMask(1);
static const unsigned int  ISARMED(0x1000000);
static const unsigned int  SCALERENABLED(0x10000);
static const unsigned int  MCSENABLED(0x40000);
static const unsigned int  ENABLEREFPULSER(0x40);
static const unsigned int  DISABLEREFPULSER(0x400000);
static const unsigned int  ENABLETESTPULSER(0x30);
static const unsigned int  DISABLETESTPULSER(0x300000);
static const unsigned int  REFPULSERON(0x40);
static const unsigned int  TESTPULSERON(0X30);

                                // Module Id/Firmware register

static const unsigned long IdAndFirmware(0x4);
                                // The id part of the register:
static const unsigned int  IDShift(16);
static const unsigned int  IDMask(0xffff); // After shift that is.
                                // The revlevel part:
static const unsigned int  REVMask(0xff);  // Revision fields 8bits
static const unsigned int  MAJORShift(8); 


                               // Acquisition mode register

static const unsigned int ACQMode(0x100);
static const unsigned int OperatingModeMask(0x70000000);
static const unsigned int InputModeMask(0x0070000);
static const unsigned int LatchModeMask(0x00000070);
static const unsigned int NONCLEARINGMODE(1);

                                //  Reset key register.

static const unsigned int RESET(0x400);

                                // Clear channels key register.

static const unsigned int CLEAR(0x40c);   //???

                                // Latch key register...

static const unsigned int LATCH(0x410);

                                // Arm key register...

static const unsigned int ARM(0x414);


                                // key registers to enable/disable.

static const unsigned int ENABLE(0x418);
static const unsigned int DISABLE(0x41c);


                                // The scaler counters:

static const unsigned int SHADOWCOUNTERS(0x800); // Shadow regs.
static const unsigned int COUNTERS(0xa00);  // Live counters.
static const unsigned int ChannelCount(32); // # channels.

CSIS3820::CSIS3820(unsigned long base, int crate) throw (string) :
  CModule32(base, ModuleSize, crate)
{

  ULong_t ModuleInfo = getModuleInfo();

  int     id         = ((ModuleInfo >> IDShift) & IDMask);

  if(id != 0x3820) {
    ThrowString("CSIS3820::CSIS3820",
              "Base address does not point to an SIS3820 module");
  }
  Reset();

  // Setup the module to default mode:

  

}

double
CSIS3820::getRevision() const
{
  int id = getModuleInfo();
  
  int minor = id & REVMask;
  int major = ((id >> MAJORShift) && REVMask);
  char versionstring[100];
  sprintf(versionstring, "%d.%d", major, minor);
  return atof(versionstring);
}

int
CSIS3820::getModuleInfo() const
{
  return peek(IdAndFirmware);
}
void
CSIS3820::LightOn() const
{
  setCSR(LEDOn);
}
void
CSIS3820::LightOff() const
{
  setCSR(LEDOff);
}

unsigned int
CSIS3820::getCsr() const 
{
  return peek(CSR);
}
unsigned long
CSIS3820::getAcqMode() const
{
  return peek(ACQMode);
}
void
CSIS3820::Reset() const
{
  Key(RESET);
}

void
CSIS3820::setOperatingMode(CSIS3820::OperatingMode mode)  const
  throw (string)
{
  const char* pLeader("CSIS3820::setOperatingMode");
  switch (mode) {
  case LatchingScaler:
    {
      unsigned long  
        CurrentMode = getAcqMode();
      CurrentMode   = (CurrentMode & ~getOperatingMode()) | mode;
      setAcqMode(CurrentMode);
    }
    break;
  case MultiChannelScaler:
    ThrowString(pLeader, 
                "MultiChannel mode  unsupported at this time.");
  case HistogrammingScaler:
    ThrowString(pLeader,
                "Histogramming mode unsupported at this time");
  case RamTestScaler:
    ThrowString(pLeader,
                "Ramtest mode unsupported at this time");
    
  default:
    ThrowString(pLeader,
                "Unknown operating mode requested");
  }
}
CSIS3820::OperatingMode
CSIS3820::getOperatingMode() const
{
  unsigned long CurrentMode = getAcqMode();
  CurrentMode &= OperatingModeMask;
  return static_cast<OperatingMode>(CurrentMode);
}

void
CSIS3820::setInputMode(CSIS3820::InputMode mode) const throw (string)
{
  const char* pLeader("CSIS3820::setInputMode");
  switch (mode) {
    // Valid modes:
  case NoInputs:
  case InputLatchInhibitLatch:
  case InputLatchInhibitAllAndLatch:
  case InputLatchInhibitAll:
  case InhibitGroups:
  case InputLNEHiscal:
    {
      unsigned long current = getAcqMode();
      current = (current & ~getInputMode()) | mode;
      setAcqMode(current);
    }
    break;
  case InputLNEInhAllExtClear:
    if (getRevision() >= 1.08) {
      unsigned long current = getAcqMode();
      current = (current & ~getInputMode()) | mode;
      setAcqMode(current);
    }
    else {
      ThrowString(pLeader,"InputLNEInhAllExtClear requires FW rewv 1.5 and above.");
    }
    break;
    // unimplemented modes.
  case InputReserved7:
    
    ThrowString(pLeader,
                "Unimplemented input mode requested (InputReserved*)");
    // Unknown mode:
  default:
    ThrowString(pLeader,
                "Unrecognized input mode requested");
  }
}

CSIS3820::InputMode
CSIS3820::getInputMode() const
{
  unsigned long mode = getAcqMode();
  mode &= InputModeMask;
  return static_cast<InputMode>(mode);
}

void
CSIS3820::setLatchSource(LNESource mode) const
  throw (string)
{

  const char* pLeader("CSIS3820::SetLatchSource");

  switch (mode) {
    // supported modes.
  case LatchVMEOnly:
  case LatchFP:
  case Latch10Mhz:

    {
      unsigned long acqmode = getAcqMode();
      acqmode    = (acqmode & ~getLatchSource()) | mode;
      setAcqMode(acqmode);
    }
    break;

    // unsupported modes.

  case LatchChannelN:
  case LatchPresetN:
  case LatchReserved5:
  case LatchReserved6:
  case LatchReserved7:
    ThrowString(pLeader,
                "Unsupported latch mode.");

    // unrecognized mode.

  default:
    ThrowString(pLeader,
                "Unrecognized latch mode ");
  }
  
}
CSIS3820::LNESource
CSIS3820::getLatchSource() const
{
  unsigned long mode = getAcqMode();
  return static_cast<LNESource>(mode & LatchModeMask);
}

void
CSIS3820::Arm() const
{
  Key(ARM);
}

bool
CSIS3820::isArmed() const
{
  unsigned int csr = getCsr();
  return ((csr & ISARMED) != 0);

}
void
CSIS3820::Enable() const
{
  Key(ENABLE);

}
void 
CSIS3820::Disable() const
{
  Key(DISABLE);
}
bool
CSIS3820::isEnabled() const
{
  unsigned int csr = getCsr();
  return ((csr & (SCALERENABLED | MCSENABLED)) != 0);
}

void
CSIS3820::EnableReferencePulser() const
{
  setCSR(ENABLEREFPULSER);
}
void 
CSIS3820::DisableReferencePulser() const
{
  setCSR(DISABLEREFPULSER);
}
bool
CSIS3820::isReferencePulserEnabled() const
{
  unsigned int csr = getCsr();
  return ((csr & REFPULSERON) != 0);
}


void
CSIS3820::EnableTestCounter() const
{
  setCSR(ENABLETESTPULSER);
}
void 
CSIS3820::DisableTestCounter() const
{
  setCSR(DISABLETESTPULSER);
}
bool
CSIS3820::isTestCounterOn() const
{
  unsigned int csr = getCsr();
  return ((csr & TESTPULSERON) == TESTPULSERON); // not simple bits.
}
void
CSIS3820::ClearChannels() const
{
  Key(CLEAR);
}
void 
CSIS3820::DisableClearOnLatch() const
{
  unsigned long mode = getAcqMode();
  mode |= NONCLEARINGMODE;
  setAcqMode(mode);
}
void
CSIS3820::EnableClearOnLatch() const
{
  unsigned long mode = getAcqMode();
  mode &= ~NONCLEARINGMODE;
  setAcqMode(mode);
}

unsigned long
CSIS3820::ReadChannel(unsigned int num) const
{

  ValidChannel(num, "CSIS3820::ReadChannel");
  return peek(ChannelOffset(COUNTERS, num));

}

void
CSIS3820::ReadAllChannels(unsigned long* buffer) const
{
  for(unsigned int i =0; i < ChannelCount; i++) {
    *buffer++ = ReadChannel(i);
  }
}
void
CSIS3820::Latch() const
{
  Key(LATCH);
}
unsigned long
CSIS3820:: ReadLatchedChannel(unsigned int num) const
{
  ValidChannel( num, "CSIS3820::ReadLatchedChannel");
  return peek(ChannelOffset(SHADOWCOUNTERS,num));

}
void
CSIS3820:: ReadAllLatchedChannels(unsigned long* buffer) const
{
  for(int i =0; i < ChannelCount; i++) {
    *buffer++ = ReadLatchedChannel(i);
  }
}
void
CSIS3820:: LatchAndRead(unsigned long* buffer) const
{
  Latch();
  ReadAllLatchedChannels(buffer);
}

void
CSIS3820::setAcqMode(unsigned long value) const
{
  poke(value, ACQMode);
}

void
CSIS3820::setCSR(unsigned int long data) const
{
  poke(data, CSR);
}
void
CSIS3820::ValidChannel(unsigned int chan, 
                       const char *pWhere) throw (string)
{
  if(chan >= ChannelCount) {
    char msg[100];
    sprintf(msg, "Channel %d is out of range must be in [0,32)",
            chan);
    ThrowString(pWhere, msg);
  }
}
unsigned long
CSIS3820:: ChannelOffset(unsigned long base, 
                                     unsigned int  chan)
{
  return base + chan*sizeof(unsigned long);
}

---