SubdeviceRegisterAccessor.h

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// SPDX-FileCopyrightText: Deutsches Elektronen-Synchrotron DESY, MSK, ChimeraTK Project <chimeratk-support@desy.de>
// SPDX-License-Identifier: LGPL-3.0-or-later
#pragma once
 
#include "NDRegisterAccessor.h"
#include "SubdeviceBackend.h"
 
#include <algorithm>
 
namespace ChimeraTK {
 
  /********************************************************************************************************************/
 
  class SubdeviceRegisterAccessor : public NDRegisterAccessor<int32_t> {
   public:
    SubdeviceRegisterAccessor(boost::shared_ptr<SubdeviceBackend> backend, const std::string& registerPathName,
        boost::shared_ptr<NDRegisterAccessor<int32_t>> accAddress,
        boost::shared_ptr<NDRegisterAccessor<int32_t>> accDataArea,
        boost::shared_ptr<NDRegisterAccessor<int32_t>> accStatus, size_t byteOffset, size_t numberOfWords);
 
    void doReadTransferSynchronously() override;
 
    bool doWriteTransfer(ChimeraTK::VersionNumber versionNumber) override;
 
    void doPreRead(TransferType type) override;
 
    void doPostRead(TransferType type, bool hasNewData) override;
 
    void doPreWrite(TransferType type, VersionNumber) override;
 
    void doPostWrite(TransferType type, VersionNumber) override;
 
    bool mayReplaceOther(const boost::shared_ptr<TransferElement const>&) const override;
 
    bool isReadOnly() const override;
 
    bool isReadable() const override;
 
    bool isWriteable() const override;
 
   protected:
    boost::shared_ptr<SubdeviceBackend> _backend;
 
    boost::shared_ptr<NDRegisterAccessor<int32_t>> _accAddress;  // address register, if present
    boost::shared_ptr<NDRegisterAccessor<int32_t>> _accDataArea; // data or area register
    boost::shared_ptr<NDRegisterAccessor<int32_t>> _accStatus;   // status register, if present
 
    size_t _startAddress, _numberOfWords;
 
    std::vector<int32_t> _buffer;
 
    std::vector<boost::shared_ptr<TransferElement>> getHardwareAccessingElements() override;
 
    std::list<boost::shared_ptr<TransferElement>> getInternalElements() override;
 
    void replaceTransferElement(boost::shared_ptr<TransferElement> newElement) override;
  };
 
} // namespace ChimeraTK