CAENcard.cpp

Go to the documentation of this file.

/*
                    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
 of this license document, but changing it is not allowed.

                            Preamble

  The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it.  (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.)  You can apply it to
your programs, too.

  When we speak of free software, we are referring to freedom, not
price.  Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.

  To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.

  For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have.  You must make sure that they, too, receive or can get the
source code.  And you must show them these terms so they know their
rights.

  We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.

  Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software.  If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.

  Finally, any free program is threatened constantly by software
patents.  We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary.  To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.

  The precise terms and conditions for copying, distribution and
modification follow.

                    GNU GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License.  The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language.  (Hereinafter, translation is included without limitation in
the term "modification".)  Each licensee is addressed as "you".

Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope.  The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.

  1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.

You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.

  2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:

    a) You must cause the modified files to carry prominent notices
    stating that you changed the files and the date of any change.

    b) You must cause any work that you distribute or publish, that in
    whole or in part contains or is derived from the Program or any
    part thereof, to be licensed as a whole at no charge to all third
    parties under the terms of this License.

    c) If the modified program normally reads commands interactively
    when run, you must cause it, when started running for such
    interactive use in the most ordinary way, to print or display an
    announcement including an appropriate copyright notice and a
    notice that there is no warranty (or else, saying that you provide
    a warranty) and that users may redistribute the program under
    these conditions, and telling the user how to view a copy of this
    License.  (Exception: if the Program itself is interactive but
    does not normally print such an announcement, your work based on
    the Program is not required to print an announcement.)

These requirements apply to the modified work as a whole.  If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works.  But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.

In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.

  3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:

    a) Accompany it with the complete corresponding machine-readable
    source code, which must be distributed under the terms of Sections
    1 and 2 above on a medium customarily used for software interchange; or,

    b) Accompany it with a written offer, valid for at least three
    years, to give any third party, for a charge no more than your
    cost of physically performing source distribution, a complete
    machine-readable copy of the corresponding source code, to be
    distributed under the terms of Sections 1 and 2 above on a medium
    customarily used for software interchange; or,

    c) Accompany it with the information you received as to the offer
    to distribute corresponding source code.  (This alternative is
    allowed only for noncommercial distribution and only if you
    received the program in object code or executable form with such
    an offer, in accord with Subsection b above.)

The source code for a work means the preferred form of the work for
making modifications to it.  For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable.  However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.

If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.

  4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License.  Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.

  5. You are not required to accept this License, since you have not
signed it.  However, nothing else grants you permission to modify or
distribute the Program or its derivative works.  These actions are
prohibited by law if you do not accept this License.  Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.

  6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions.  You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.

  7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License.  If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all.  For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

  8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.

  9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time.  Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.

Each version is given a distinguishing version number.  If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions 
either of that version or of any later version published by the Free Software 
Foundation.  If the Program does not specify a version number of this License,
 you may choose any version ever published by the Free Software Foundation.

  10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author to 
ask for permission.  For software which is copyrighted by the Free Software 
Foundation, write to the Free Software Foundation; we sometimes make 
exceptions for this.  Our decision will be guided by the two goals of 
preserving the free status of all derivatives of our free software and of 
promoting the sharing and reuse of software generally.

                            NO WARRANTY

  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR
THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN 
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE 
THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, 
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND 
PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, 
YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO 
LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR 
THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH 
DAMAGES.

                     END OF TERMS AND CONDITIONS '
*/

/*
  Change Log:
  $Log$
  Revision 8.6.2.1  2007/07/15 14:33:57  ron-fox
  Add emptyEnable/Disable to CAENcard.

  Revision 8.6  2006/05/15 14:29:45  ron-fox
  Little misc. changes..

  Revision 8.5  2006/04/05 11:24:53  ron-fox
  1. Commit changes since the restore from sourceforge's backups.
  2. Revert the CAENcard support... firmware 8.08 still makes wordcount
     errors.

  Revision 8.4  2005/08/24 11:15:46  ron-fox
  Improve CAENcard readout performance for non mapped devices.

  Revision 8.3  2005/08/15 21:49:32  ron-fox
  Support for the CAEN V1785 module.  This module is a weird dual
  range ADC.

  Revision 8.2  2005/06/24 11:30:36  ron-fox
  Bring the entire world onto the 8.2 line

  Revision 4.6  2005/05/24 11:08:00  ron-fox
  Minor commits and open 8.0-001 edit level

  Revision 4.5  2005/05/05 13:28:32  ron-fox
  Put vmetcl on top of the CVmeInterface peek/poke class so that
  it is independent of the VME interface module

  Revision 4.4  2004/12/21 18:08:55  ron-fox
  Finalize 8.0pre1

  Revision 4.3  2004/12/07 15:20:21  ron-fox
  - Fix some CVS errors with the wiener driver.
  - Re create the autotools based build for the wiener driver stuff.
  - Actually check that we can compile the stuff selecting the wiener
    vme device

  Revision 4.2  2004/11/16 15:24:48  ron-fox
  - Port to the gnu 3.x compiler set.
  - Integrate buid of tests.
  - Integrate build of docos.

  Revision 1.6  2004/11/16 15:23:28  ron-fox
  - Port -> gcc/g++ 3.x
  - Support integrated test building.
  - Support integrated doxygen docu7mentation building.

  Revision 1.5  2004/11/05 21:31:34  ron-fox
  Bring onto main line

  Revision 1.3.4.2  2004/08/17 20:38:09  ron-fox
  Fix error in #ifdef/#else without #endif in code to selectively enable
  the copying functionality.

  Revision 1.3.4.1  2004/08/17 09:00:54  ron-fox
  Use CopyIn again where it's possible.. the assumption is that
  everyone has a good spectrodaq!!!

  Revision 1.3  2004/01/14 17:45:09  ron-fox
  Remove code for spectrodaq copyin that
  crept back in by mistake.

  Revision 1.2  2003/12/03 18:12:48  ron-fox
  Fix stupid typo.

  Revision 1.1  2003/12/03 15:59:29  ron-fox
  Add CAENcard and associated documentation.

  Revision 3.9  2003/10/31 17:48:13  ron-fox
  correct bad call signature for DAQxxxBufPtr::CopyIn

  Revision 3.8  2003/09/19 19:53:34  ron-fox
  Add:
   - Statistics about event fix ups.
   - Access to a few more bits of SR1 and SR2.

  Revision 3.7  2003/09/16 12:15:09  ron-fox
  Fixed setVoltageThreshold to work regardless of the threshold mode (small or large).

  Revision 3.6  2003/08/14 17:57:47  ron-fox
  Add support for small threshold mode in modules up to date enough to implement it.  Note that we still need to modify the setthresholdvoltage function so that it understands what to do in the different pedestal modes.

  Revision 3.5  2003/06/19 19:09:17  ron-fox
  Rewrite to make both multi-crate safe and a little cleaner code.
  work around problems I'm seeing with word count field corruption.

  Revision 3.4  2003/06/06 11:40:11  ron-fox
  Remove some debug output now that everything works.

  Revision 3.3  2003/06/02 14:37:33  ron-fox
  Support multiple crates correctly.

*/

static const char* Copyright= "(C) Copyright Michigan State University 2002, All rights reserved";

#include <config.h>


#include "CAENcard.h"
#include <string>
#include <unistd.h>

#include <assert.h>
#ifdef HAVE_STD_NAMESPACE
using namespace std;
#endif


//   Convenience function for longword swapping.
#define swaplong(n)  (((n >> 16) & 0xffff) | ((n & 0xffff) << 16))
//

#define VME_CRATE_SIZE      24  // Slots in a VME crate.

#define CAEN_REGISTERSIZE   0x2000 // Size of CAEN Register set.
#define CAEN_ROMSIZE        0x1000 // Size of CAEN ROM page.
#define CAEN_ROMOFFSET      0x8000 // Offset from base of ROM page.


// Bits we need in registers:

// Threshold memory.

#define KILLBIT  0x100          // Kill bit in threshold registers.

// Bit Set/Clear 1 register:

#define RESET       0x080
#define SELADDR     0x010

// Status register 1:


#define DREADY      0x001
#define GDREADY     0x002
#define BUSY        0x004
#define GBUSY       0x008


// Bit Set/Clear 2 register.

#define OFFLINE     0x002
#define CLEARDATA   0x004
#define KEEPOVER    0x008
#define KEEPTHRESH  0x010
#define KEEPINVALID 0x020
#define COMMONSTOP  0x400
#define STEPTHR     0x100
#define AUTOIN      0x800
#define EMPTY       0x1000
#define SLIDESUB    0x2000
#define ALLTRG      0x4000


// Control register1:

#define CTL1BLKEND   0x04
#define CTL1PROGRST  0x10
#define CTL1BERRENA  0x20
#define CTL1ALIGN64  0x40


// Multicast control register:

#define MCSTFIRST    2
#define MCSTLAST     1


// Status register 2:

#define SR2EMPTY     2          // MEB empty
#define SR2FULL      4          // MEB full.


// The structure below represents the CAEN register set:
//

struct Registers {
  unsigned long   Buffer[0x1000/sizeof(long)]; // 0x0000
  unsigned short  FirmwareRev;                 // 0x1000
  unsigned short  GeoAddress;                  // 0x1002
  unsigned short  MCSTAddress;                 // 0x1004
  unsigned short  BitSet1;                     // 0x1006
  unsigned short  BitClear1;                   // 0x1008
  unsigned short  InterruptLevel;              // 0x100a
  unsigned short  InterruptVector;             // 0x100c
  unsigned short  Status1;                     // 0x100e
  unsigned short  Control1;                    // 0x1010
  unsigned short  HighAddress;                 // 0x1012
  unsigned short  LowAddress;                  // 0x1014
  unsigned short  Reset;                       // 0x1016
  unsigned short  pad1;                        // 0x1018
  unsigned short  MCSTControl;                 // 0x101a
  unsigned short  pad2;                        // 0x101c
  unsigned short  pad3;                        // 0x101e
  unsigned short  EventTrigger;                // 0x1020
  unsigned short  Status2;                     // 0x1022
  unsigned short  EventCounterLow;             // 0x1024
  unsigned short  EventCounterHigh;            // 0x1026
  unsigned short  IncrementEvent;              // 0x1028
  unsigned short  IncrementOffset;             // 0x102a
  unsigned short  LoadTestRegister;            // 0x102c
  unsigned short  FCLRWindow;                  // 0x102e
  unsigned short  pad4;                        // 0x1030
  unsigned short  BitSet2;                     // 0x1032
  unsigned short  BitClear2;                   // 0x1034
  unsigned short  WMemoryTestAddress;          // 0x1036
  unsigned short  MemoryTestHigh;              // 0x1038
  unsigned short  MemoryTestLow;               // 0x103a
  unsigned short  CrateSelect;                 // 0x103c
  unsigned short  TestEventWrite;              // 0x103e
  unsigned short  EventCounterReset;           // 0x1040
  unsigned short  pad5[15];                    // 0x1042-105e
  unsigned short  TDCRange;                    // 0x1060
  unsigned short  pad7;                        // 0x1062
  unsigned short  RMemoryTestAddress;          // 0x1064
  unsigned short  pad8;                        // 0x1066
  unsigned short  SWComm;                      // 0x1068
  unsigned short  SlideConstant;               // 0x106a
  unsigned short  pad10;                       // 0x106c
  unsigned short  pad11;                       // 0x106e
  unsigned short  AAD;                         // 0x1070
  unsigned short  BAD;                         // 0x1072
  unsigned short  pad9[6];                     // 0x1074-107e
  unsigned short  Thresholds[32];              // 0x1080
  
};
#define QDCIPedestal TDCRange    // same register offsets.

// The structure below represents the part of the board ROM
// we care about... it holds a few chunks of useful info about
// the board:

struct ROM {
  unsigned short  pad1[0x26/sizeof(short)];  // 0x8000 - 0x8024
  unsigned short  OUIMSB;                    // 0x8026
  unsigned short  pad2;                      // 0x8028
  unsigned short  OUI;                       // 0x802a
  unsigned short  pad3;                      // 0x802c
  unsigned short  OUILSB;                    // 0x802e
  unsigned short  pad4;                      // 0x8030
  unsigned short  Version;                   // 0x8032
  unsigned short  pad5;                      // 0x8034
  unsigned short  BoardIdMSB;                // 0x8036
  unsigned short  pad6;                      // 0x8038
  unsigned short  BoardId;                   // 0x803a
  unsigned short  pad7;                      // 0x803c
  unsigned short  BoardIdLSB;                // 0x803e
  unsigned short  pad8[7];                   // 0x8040-0x804c
  unsigned short  Revision;                  // 0x804e
  unsigned short  pad9[0xb0/sizeof(short)];  // 0x8050 - 0x8100
  unsigned short  pad10[0xe00/sizeof(short)]; // 0x8100 - 0x8ffe
  unsigned short  pad11;                     // 0x8f00
  unsigned short  SerialMSB;                 // 0x8f02
  unsigned short  pad12;                     // 0x8f04
  unsigned short  SerialLSB;                 // 0x8f06
};


// Byte offset associated with a structure/field.


#define Offset(structname, field)  \
((unsigned int)&(((structname*)0x0)->field))


#define ShortOffset(structname, field) Offset(structname, field)/sizeof(short)
#define LongOffset(structname, field)  Offset(structname, field)/sizeof(long)

#ifdef HAVE_VME_MAPPING
#define ReadBuffer   (((volatile Registers*)m_pModule)->Buffer[0])
#else
#define ReadBuffer   (m_pModule->peekl(LongOffset(Registers, Buffer)));
#endif


void
CAENcard::ReadBufferBlock(int* pDest, Int_t nLongs)
{
#ifdef HAVE_VME_MAPPING
  for(int i = 0; i < nLongs; i++) {
    int Datum = ReadBuffer;
    *pDest++ = swaplong(Datum);
  }
#else
  int* pd = pDest;
  m_pModule->readl(pd, LongOffset(Registers, Buffer), nLongs);
  for(int i =0; i < nLongs; i++) {
    *pDest++ = swaplong(*pDest);
  }
#endif
}


CAENcard::CAENcard(int slotNum, int crateNum , 
                   bool Geo, long nBase) :
  m_nSlot(slotNum),
  m_nCrate(crateNum),
  m_fGeo(Geo),
  m_nBase(nBase),
  m_pModule(0),
  m_nFirmware(0)
{
  assert(sizeof(Registers) == 0x10c0);    // else struct misdefined.
  assert(sizeof(ROM) == 0xf08);          // else struct misdefined.
  slotInit();
}
CAENcard::CAENcard(const CAENcard& card) :
  m_nSlot(card.m_nSlot),
  m_nCrate(card.m_nCrate),
  m_fGeo(card.m_fGeo),
  m_nBase(card.m_nBase),
  m_pModule(0),
  m_fSmallThresholds(false)
{
  MapCard();                    // Map the card.
}

CAENcard& CAENcard::operator=(const CAENcard& card)
{
  if(this != &card) {
    if(this->m_pModule) DestroyCard(); // Destroy old memory map.
    m_nSlot   = card.m_nSlot;
    m_nCrate = card.m_nCrate;
    m_fGeo   = m_fGeo;
    m_nBase  = card.m_nBase;
    MapCard();
  }
  return *this;
}



void 
CAENcard::slotInit()
{

  MapCard();

  reset();                      // clears the event count and buffer
  channelOn(-1);                // Enable all channels.
  setCrate(m_nCrate);           // Set the module's crate number.
  
  if(cardType() == 775) {       // Set defaults for a TDC:
    // set use common start mode
    // with thresholds at 14ns.

    commonStart();
    setRange(0xFF);
    setThreshold(-1, 0x19);

  }
  else if((cardType() == 785) || 
          (cardType() == 1785)) {       // Set the defaults for a Peak ADC:
      // thresholds to ~15mV 

    setThreshold(-1, 0x01);

  }
  else if((cardType() == 792) || (cardType() == 862)) { // Set defaults for a QDC:

      setThreshold(-1, 0);      // Maybe later default raise this??
  }
  

}

CAENcard::~CAENcard()
{
  DestroyCard();
}

int 
CAENcard::cardType()
{
  return m_nCardType;
}

void 
CAENcard::setCrate(int crateNum)
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pModule = (volatile Registers*)m_pModule;
  pModule->CrateSelect = crateNum & 0x0ff; // Bottom 8 bits only.
#else
   m_pModule->pokew((0x0ff & m_pModule->peekw(ShortOffset(Registers,CrateSelect))),
                    ShortOffset(Registers,CrateSelect));
#endif
}

int 
CAENcard::getCrate()
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pModule = (volatile Registers*)m_pModule;
  return (pModule->CrateSelect & 0xff);
#else
  return (m_pModule->peekw(ShortOffset(Registers, CrateSelect)) & 0xff);
#endif

}

void 
CAENcard::setThreshold(int ch, int threshold)
{
  volatile Registers* pModule = (volatile Registers*)m_pModule;
  threshold = threshold & 0x00FF;
  
  if( ch < 0 ) {
    for(int i = 0; i < 32; i++) {
      setThreshold(i,threshold); // Set individual channel threshold
    }
  }
  else {
#ifdef HAVE_VME_MAPPING
    Registers* pModule      = (Registers*)m_pModule;
    pModule->Thresholds[ch] = threshold |
                             (pModule->Thresholds[ch] & KILLBIT);
#else
    int noffset = ShortOffset(Registers, Thresholds[ch]);
    int now     = m_pModule->peekw(noffset);
    now         = threshold | (now & KILLBIT);
    m_pModule->pokew(now, noffset);
#endif
  }
}

void 
CAENcard::setThresholdVoltage(int ch, double voltage)
{
  if(m_fSmallThresholds) {
    setThreshold(ch,(int)(voltage*64.0));  
  }
  else {
    setThreshold(ch, (int)(voltage*8.0));
  }
}

void CAENcard::keepUnderThresholdData()
{
  Bitset2(KEEPTHRESH);
}

void CAENcard::discardUnderThresholdData()
{
  Bitclear2(KEEPTHRESH);

}
void CAENcard::keepOverflowData()
{
  Bitset2(KEEPOVER);
}

void CAENcard::discardOverflowData()
{
  Bitclear2(KEEPOVER);

}

void
CAENcard::keepInvalidData() 
{ 

  if(cardType() == 775) {
    Bitset2(KEEPINVALID);
  }
  else {
    throw string("keepInvalidData - Module is not a V775 TDC");
  }
}
void 
CAENcard::discardInvalidData()
{
  if(cardType() == 775)
  {
    Bitclear2(KEEPINVALID);
  }
  else
  {
    throw string("discardInvalidData - Module is not a V775 TDC");
  }
}
void
CAENcard::emptyEnable()
{
        Bitset2(EMPTY);
}
void
CAENcard::emptyDisable()
{
        Bitclear2(EMPTY);
}

void CAENcard::commonStart()
{
  //make sure that the card is a TDC and initialized
  if(cardType() == 775)
  {
    Bitclear2(COMMONSTOP);
  }
  else
  {
    throw string("commonStart()  - Module is not a V775 TDC");
  }
}

void
CAENcard::commonStop()
{
  //make sure that the card is a TDC and initialized
  if(cardType() == 775)
  {
    volatile Registers* pRegisters = (volatile Registers*)m_pModule;
    Bitset2(COMMONSTOP);
    
  }
  else
  {
    throw string("commonStop() - Module is not a V775 TDC");
  }
}

void
CAENcard::setRange(int range)
{
  //make sure that the card is a TDC

  if(cardType() == 775)
  {
    if(range > 0x001D && range < 0x0100)
    {
#ifdef HAVE_VME_MAPPING
      volatile Registers* pRegisters = (volatile Registers*)m_pModule;
      pRegisters->TDCRange  = (short int)range;
#else
      m_pModule->pokew(range, ShortOffset(Registers, TDCRange));
#endif

    }
    else
    {
      throw 
        string("setRange - TDC Range value must be in [0x1e,0xff");
    }
  }
  else
  {
    throw string("setRange - Module is not a V775 TDC");
  }
}

void 
CAENcard::setPedestalCurrent(int ped)
{
  //make sure that the card is a QDC
  int type = cardType();
  if((type == 792) || (type == 862))
  {
    ped = ped & 0xff;
#ifdef HAVE_VME_MAPPING
    volatile Registers* pRegisters    = (volatile Registers*) m_pModule;
    pRegisters->QDCIPedestal = (ped); 
#else
    m_pModule->pokew(ped, ShortOffset(Registers,QDCIPedestal));
#endif
  }
  else
  {
    throw string("setPedestalCurrent - module is not a V792 or V862 QDC");
  }
}
void 
CAENcard::cardOff()
{
  Bitset2(OFFLINE);
}

void 
CAENcard::cardOn()
{
  Bitclear2(OFFLINE);
}

void CAENcard::channelOff(int ch)
{

  if( ch < 0 ) {
    for( int i = 0; i < 32; ++i )
      channelOff(i);
  }
  else {
    if(ch < 32) {
#ifdef HAVE_VME_MAPPING
       volatile Registers* pRegisters = (volatile Registers*)m_pModule;
       pRegisters->Thresholds[ch] |= KILLBIT;   
#else
      short thresh = m_pModule->peekw(ShortOffset(Registers,Thresholds[ch])) | KILLBIT;
      m_pModule->pokew(thresh, ShortOffset(Registers,Thresholds[ch]));
#endif
    } else {
      throw string("channelOff - channel number must be in [0,31]");
    }
  }
}

void 
CAENcard::channelOn(int ch)
{

  if( ch < 0 ) {
    for( int i = 0; i < 32; ++i )
      channelOn(i);
  }
  else {
    if(ch < 32) {
#ifdef HAVE_VME_MAPPING
       volatile Registers* pRegisters = (volatile Registers*)m_pModule;
       pRegisters->Thresholds[ch] &= ~(KILLBIT);
#else
      int thresh =  m_pModule->peekw(ShortOffset(Registers,Thresholds[ch])) & ~(KILLBIT);
       m_pModule->pokew(thresh, ShortOffset(Registers, Thresholds[ch]));
#endif
    } 
    else {
      throw string("channelOn - channel number must be in [0,31]");
    }
  }

}

void 
CAENcard::resetEventCounter()
{
  // Any write triggers the reset!

#ifdef HAVE_VME_MAPPING
  ((volatile Registers*)m_pModule)->EventCounterReset = 1;
#else
   m_pModule->pokew(1, ShortOffset(Registers, EventCounterReset));
#endif


  ((volatile Registers*)m_pModule)->EventCounterReset = 1;

}

void CAENcard::clearData()
{
   Bitset2(CLEARDATA);
   Bitclear2(CLEARDATA);
};

void 
CAENcard::reset()
{
  Bitset1(RESET);
  Bitclear1(RESET);
};

bool 
CAENcard::dataPresent()
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pReg = (volatile Registers*)m_pModule;
  return ((pReg->Status1 & DREADY) != 0);
#else
  return ((m_pModule->peekw(ShortOffset(Registers, Status1))  & DREADY) != 0);
#endif
};

int 
CAENcard::readEvent(void* buf)
{

  int* pBuf((int*)buf);
  if(dataPresent())
  {
    int n = 1;                  // Header at least is read.
    int  Header     = ReadBuffer;
    int* pHeader    = pBuf;     // To fix channel count.
    int  nRawChancnt= (Header >> 8) & 0x3f;
    *pBuf++         = swaplong(Header);
    if(0 && (getFirmware() >= 0x808) ) {        // Raw chancount reliable... NOT
      
      ReadBufferBlock(pBuf, nRawChancnt+1);
      return (nRawChancnt+2)*sizeof(long);

    } else {
      int datum;
      do {
        datum   = ReadBuffer;
        *pBuf++ = swaplong(datum);
        n++;
        datum = (datum >> 24) & 7;
      } while ( (datum == 0) && (n <= 34));
      if(datum != 4) {          // The trailer should be of type 4.
        cerr << " Data type in terminating long wrong: " << hex 
             <<datum << dec << endl;
        m_nInvalidTrailers++;
      } 
      if ((n-2) < nRawChancnt) m_nChancountHigh++;
      if ((n-2) > nRawChancnt) m_nChancountLow++;
      Header &= 0xffffC0ff;     // Channel count is sometimes wrong.
      Header |= ((n-2) << 8);   // this fixes it.
      *pHeader = swaplong(Header);
      m_nEvents++;              // Count an event taken.
      return n * sizeof(long);                  // Rely on the trailer!!
    }
  }else {
    // cerr << "Readout called but no data present\n";
    return 0;
  }
}

int 
CAENcard::readEvent(DAQWordBuffer& wbuf, int offset)
{
  int    localBuffer[32+2];     // 32 channels, + header + trailer.
  short* pBuf((short*)localBuffer); // Read here then copy.


  int n = readEvent(localBuffer);
  int nWords = n/sizeof(int);
  for(int i = 0; i < nWords; i++) {
    wbuf[offset] = *pBuf++;
    offset++;
  }
  return nWords;
  

}

int CAENcard::readEvent(DAQWordBufferPtr& wp)
{
  // Patterned after the previous function:

  int localBuffer[32+200];
  short *pBuf((short*)localBuffer);
  int nbytes = readEvent(localBuffer); // Read to temp buffer.
  int nWords = nbytes / sizeof(short);
#ifdef CLIENT_HAS_POINTER_COPYIN
  wp.CopyIn(localBuffer, 0, nWords);
  wp += nWords;
#else
  for(int i =0; i < nWords; i++) {
    *wp = *pBuf++;
    ++wp;
  }
#endif
  return nWords;
  
};

int 
CAENcard::readEvent(DAQDWordBuffer& dwbuf, int offset)
{
  int localBuffer[32+2];        // 32 chans + header + trailer.
  int nbytes = readEvent(localBuffer);
  int nlongs = nbytes/sizeof(long);
  int* pLocal(localBuffer);
  for(int i =0; i < nlongs; i++) {
    dwbuf[offset] = *pLocal++;
    offset++;
  }
  return nlongs;


}

int CAENcard::readEvent(DAQDWordBufferPtr& dwp)
{
  int localBuffer[32+2];        // 32 chans + header +trailer.
  int nbytes  = readEvent(localBuffer);
  int nlongs  = nbytes/sizeof(long);
  int* pLocal(localBuffer);
  for(int i =0; i < nlongs; i++) {
    *dwp = *pLocal++;
    ++dwp;
  }
  return nlongs;


}



void CAENcard::setIped(int value)
{
  setPedestalCurrent(value);
}
int CAENcard::getIped()
{
  if((cardType() == 792) || (cardType() == 862)) {
#ifdef HAVE_VME_MAPPING
    return ((volatile Registers*)m_pModule)->QDCIPedestal;
#else
    return m_pModule->peekw(ShortOffset(Registers, QDCIPedestal));
#endif
  } else {
    throw string("getIped - Module is not a V792 or V862 QDC");
  }

}
void CAENcard::MapCard()
{
  //ensure that the slot and crate specified stay within bounds

   m_nCrate = m_nCrate & 0xff;  //not important enough to give an error for, just discard the extra

   if(m_nSlot > VME_CRATE_SIZE)
   {
      throw string("Invalid slot number specified to MapCard(). ");
   }
   

     //the card is not mapped yet, so do it

   void* fd;
#ifndef HAVE_VME_MAPPING
   CVmeModule* pRom;
#else
   ROM *pRom;
#endif
   if( m_fGeo) {                // Geographical addressing...
#ifndef HAVE_VME_MAPPING
      m_pModule = new CVmeModule(CVmeModule::geo, m_nSlot << 19, 
                                 CAEN_REGISTERSIZE, m_nCrate);
      pRom      = new CVmeModule(CVmeModule::geo, 
                                 ((long)m_nSlot << 19) + CAEN_ROMOFFSET,
                                 CAEN_ROMSIZE);
#else
     fd   = CVMEInterface::Open(CVMEInterface::GEO, m_nCrate);
     m_pModule= (volatile unsigned short*) 
                   CVMEInterface::Map(fd, 
                                      (unsigned long)m_nSlot << 19, 
                                      CAEN_REGISTERSIZE);
     pRom     = (ROM*)
                      CVMEInterface::Map(fd,
                                         ((long)m_nSlot <<19) + 
                                         CAEN_ROMOFFSET,
                                         CAEN_ROMSIZE);
#endif     
   }
   else {                                    // A32 addressing.
#ifndef HAVE_VME_MAPPING 
     m_pModule = new CVmeModule(CVmeModule::a32d32, m_nBase,
                                CAEN_REGISTERSIZE, m_nCrate);
     pRom      = new CVmeModule(CVmeModule::a32d32, m_nBase+CAEN_ROMOFFSET,
                                CAEN_ROMSIZE);
      // The geographical address register must be programmed
     // in case the module or crate don't support geo.

     m_pModule->pokew(m_nSlot, ShortOffset(Registers, GeoAddress));
#else
     fd = CVMEInterface::Open(CVMEInterface::A32, m_nCrate);
     m_pModule = (volatile unsigned short*) CVMEInterface::Map(fd,
                                                          m_nBase,
                                                 CAEN_REGISTERSIZE);
     pRom = (ROM*)CVMEInterface::Map(fd,
                                     m_nBase + CAEN_ROMOFFSET,
                                     CAEN_ROMSIZE);
      // The geographical address register must be programmed
     // in case the module or crate don't support geo.

     ((volatile Registers*)m_pModule)->GeoAddress = m_nSlot;
#endif
   }

   // Get the module type from the PROM and unmap the prom,
   // as that's all we use it for:

#ifndef HAVE_VME_MAPPING
   m_nCardType = (pRom->peekw(ShortOffset(ROM, BoardIdMSB)) & 0xff) << 16  |
                 (pRom->peekw(ShortOffset(ROM, BoardId))    & 0xff) << 8   |
                 (pRom->peekw(ShortOffset(ROM, BoardIdLSB)) & 0xff);
   m_nSerialno = (pRom->peekw(ShortOffset(ROM, SerialMSB))  & 0xff) << 8   |
                 (pRom->peekw(ShortOffset(ROM, SerialLSB))  & 0xff);
   m_nHardwareRev = pRom->peekw(ShortOffset(ROM, Revision));
   delete pRom;
#else   
   m_nCardType = (pRom->BoardIdMSB & 0xff) << 16 |
                 (pRom->BoardId & 0xff)    <<  8 |
                 (pRom->BoardIdLSB & 0xff);
   m_nSerialno  = pRom->SerialMSB << 8 |
                 pRom->SerialLSB;
   m_nHardwareRev = pRom->Revision;

   // We can now unmap the prom:
   
   CVMEInterface::Unmap(fd, (void*)pRom, CAEN_ROMSIZE);
#endif
   /* 
      To determine that the experimenter is not lying to us
      about how the VME is stuffed, we require that the module
      identifier be of a supported module type:
      V775, V785, V792, V862, or V1785 and that, for good measure,
      it's geographical address register match the slot
      the module is in.  For random data this should
      make a pretty miniscule chance that we'll be fooled
      by an empty slot. 1/32 * (1/2&24)
   */
#ifndef HAVE_VME_MAPPING
   int nSlot = m_pModule->peekw(ShortOffset(Registers, GeoAddress)) & 0x1f;
#else
   int nSlot = ((volatile Registers*)m_pModule)->GeoAddress & 0x1f;
#endif
   
   if(!(
        ( m_nSlot  ==  nSlot )   &&
        ( (m_nCardType == 775) || 
          (m_nCardType == 785) || 
          (m_nCardType == 792) ||
          (m_nCardType == 862) ||
          (m_nCardType == 1785))
        ))   {   //either an invalid board or no board is present in this slot
#ifndef HAVE_VME_MAPPING
   delete m_pModule;
#else
     CVMEInterface::Unmap(fd, 
                          (void*)m_pModule, CAEN_REGISTERSIZE);
     
     CVMEInterface::Close(fd);
#endif
     char buffer[128];
     sprintf(buffer, "Card in crate %d, slot %d is incompatible or missing %d\n",
             m_nCrate, m_nSlot, m_nCardType);
     throw string(buffer);
       
       string("Card is incompatable type or not inserted");
   }
   
   
   //  Now that we've accessed the card successfully,
   //  If the initial mapping was geographical, we need to
   //  re-map using our 'standard' address scheme.  Otherwise
   //  we won't be able to read the event buffer which makes
   //  the module hard to readout. Note that if !m_fGeo,
   //  we already have a non-geo map, so this section gets skipped.

   
   if(m_fGeo) {                              // Transition to A32...
     // Set the address registers of the module so that it will
     // recognize at m_nSlot << 24:
#ifndef HAVE_VME_MAPPING
      m_pModule->pokew(m_nSlot, ShortOffset(Registers, HighAddress));
      m_pModule->pokew(0,       ShortOffset(Registers, LowAddress));
#else
     ((volatile Registers*)m_pModule)->HighAddress = m_nSlot;
     ((volatile Registers*)m_pModule)->LowAddress  = 0;
#endif
     // Enable address recognition based on the address registers
     // (bypass the rotary switches).

     Bitset1(SELADDR);
     
     //destroy GEO24 mmap and file descriptor
     // Now remap using A32 addressing:

#ifndef HAVE_VME_MAPPING
     delete m_pModule;
     m_pModule = new CVmeModule(CVmeModule::a32d32, (long)m_nSlot << 24,
                              CAEN_REGISTERSIZE);
     
#else

     CVMEInterface::Unmap(fd, (void*)m_pModule, CAEN_REGISTERSIZE);
     CVMEInterface::Close(fd);

     fd = CVMEInterface::Open(CVMEInterface::A32, m_nCrate);
     
     //create A32D16 mmap
     
     m_pModule = (volatile unsigned short *) 
     CVMEInterface::Map(fd, 
                        (long)m_nSlot << 24, 
                        CAEN_REGISTERSIZE);
#endif
   }
   m_nFd = fd;                  // Save for destruction.
  
}


void CAENcard::DestroyCard()
{
#ifndef HAVE_VME_MAPPING
   delete m_pModule;
#else
  CVMEInterface::Unmap(m_nFd, 
                       (void*)m_pModule,
                       CAEN_REGISTERSIZE);
  CVMEInterface::Close(m_nFd);
#endif
}

int CAENcard::getFirmware() 
{
  if (!m_nFirmware) {
#ifndef HAVE_VME_MAPPING
    m_nFirmware = m_pModule->peekw(ShortOffset(Registers, FirmwareRev));
#else
    m_nFirmware = ((Registers*)m_pModule)->FirmwareRev;
#endif
  }
  return m_nFirmware;
}
void
CAENcard::setFastClearWindow(int n)
{
#ifdef HAVE_VME_MAPPING
  Registers* pRegs = (Registers*)m_pModule;
  pRegs->FCLRWindow = n;
#else
  m_pModule->pokew(n, ShortOffset(Registers, FCLRWindow));
#endif
}
void
CAENcard::enableSmallThresholds()
{
  Bitset2(STEPTHR);
  m_fSmallThresholds = true;

}
void
CAENcard::disableSmallThresholds()
{
  Bitclear2(STEPTHR);
  m_fSmallThresholds = false;
}


void
CAENcard::SetCBLTChainMembership(int cbltaddr,
                                 CAENcard::ChainMember where)
{
  // Compute membership mask:

  int mask;
  switch (where) {
  case NotInChain:
    mask = 0;
    break;
  case FirstInChain:
    mask = MCSTFIRST;
    break;
  case LastInChain:
    mask = MCSTLAST;
    break;
  case IntermediateInChain:
    mask = MCSTFIRST | MCSTLAST;
    break;
  default:
    throw string("CAENcard::SetCBLTChainMembership: Invalid chain membership selector");
  }
#ifdef HAVE_VME_MAPPING
  ((Registers*)m_pModule)->MCSTControl = mask;
  ((Registers*)m_pModule)->MCSTAddress = cbltaddr;
  ((Registers*)m_pModule)->Control1    = CTL1BERRENA;
#else
  m_pModule->pokew(mask,       ShortOffset(Registers, MCSTControl));
  m_pModule->pokew(cbltaddr,   ShortOffset(Registers, MCSTAddress));
  m_pModule->pokew(CTL1BERRENA, ShortOffset(Registers, Control1));
#endif
}
bool
CAENcard::gdataPresent()
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pReg = (volatile Registers*)m_pModule;
  return ((pReg->Status1 & GDREADY) != 0);
#else
  short mask = m_pModule->peekw(ShortOffset(Registers, Status1));
  return ((mask & GDREADY) != 0);
#endif

}
bool
CAENcard::Busy()
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pReg = (volatile Registers*)m_pModule;
  return ((pReg->Status1 & BUSY) != 0);
#else
  short mask = m_pModule->peekw(ShortOffset(Registers, Status1));
  return ((mask & BUSY) != 0);
#endif
}
bool
CAENcard::gBusy()
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pReg = (volatile Registers*)m_pModule;
  return ((pReg->Status1 & GBUSY) != 0);
#else
  short mask = m_pModule->peekw(ShortOffset(Registers, Status1));
  return ((mask & GBUSY) != 0);
#endif
}
bool
CAENcard::MEBFull()
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pReg = (volatile Registers*)m_pModule;
  return ((pReg->Status2 & SR2FULL) != 0);
#else
  short mask = m_pModule->peekw(ShortOffset(Registers, Status2));
  return ((mask & SR2FULL) != 0);
#endif
}
bool
CAENcard::MEBEmpty()
{
#ifdef HAVE_VME_MAPPING
  volatile Registers* pReg = (volatile Registers*)m_pModule;
  return ((pReg->Status2 & SR2EMPTY) != 0);
#else
  short mask = m_pModule->peekw(ShortOffset(Registers, Status2));
  return ((mask & SR2EMPTY) != 0);
#endif
}
void
CAENcard::ClearStatistics()
{
  m_nInvalidTrailers = 0;
  m_nChancountHigh   = 0;
  m_nChancountLow    = 0;
  m_nEvents          = 0;
}
int
CAENcard::InvalidTrailerCount() 
{
  return m_nInvalidTrailers;
}
int
CAENcard::ChannelsTooBigCount()
{
  return m_nChancountHigh;
}
int
CAENcard::ChannelsTooSmallCount()
{
  return m_nChancountLow;
}
int
CAENcard::EventCount()
{
  return m_nEvents;
}
void
CAENcard::Bitset1(short mask) 
{
#ifndef HAVE_VME_MAPPING
   m_pModule->pokew(mask, ShortOffset(Registers, BitSet1));
#else
  volatile Registers* pRegisters = (volatile Registers*)m_pModule;
  pRegisters->BitSet1   = mask;
#endif   
}
void
CAENcard::Bitclear1(short mask)
{
#ifndef HAVE_VME_MAPPING
   m_pModule->pokew(mask, ShortOffset(Registers, BitClear1));
#else
  volatile Registers* pRegisters = (volatile Registers*)m_pModule;
  pRegisters->BitClear1   = mask;
#endif 
}
void
CAENcard::Bitset2(short mask)
{
#ifndef HAVE_VME_MAPPING
   m_pModule->pokew(mask, ShortOffset(Registers, BitSet2));
#else
  volatile Registers* pRegisters = (volatile Registers*)m_pModule;
  pRegisters->BitSet2   = mask;
#endif 
}
void
CAENcard::Bitclear2(short mask)
{
#ifndef HAVE_VME_MAPPING
   m_pModule->pokew(mask, ShortOffset(Registers, BitClear2));
#else
  volatile Registers* pRegisters = (volatile Registers*)m_pModule;
  pRegisters->BitClear2   = mask;
#endif 
}

---