InterruptHandler.h

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// SPDX-License-Identifier: BSD-3-Clause
//
// This file is part of ETISS. It is licensed under the BSD 3-Clause License; you may not use this file except in
// compliance with the License. You should have received a copy of the license along with this project. If not, see the
// LICENSE file.
#ifndef ETISS_INCLUDE_INTERRUPTHANDLER_H_
#define ETISS_INCLUDE_INTERRUPTHANDLER_H_
 
#include "etiss/Misc.h"
#include "etiss/Plugin.h"
#include "etiss/jit/types.h"
#include <list>
#include <mutex>
#include <set>
#include <vector>
 
namespace etiss
{
 
enum InterruptType
{
 
    EDGE_TRIGGERED = 1,
    LEVEL_TRIGGERED
 
};
 
class InterruptHandler : public etiss::CoroutinePlugin
{
  public:
    InterruptHandler(etiss::InterruptVector *interruptVector, etiss::InterruptEnable *interruptEnable,
                     std::shared_ptr<etiss::CPUArch> arch, InterruptType itype = EDGE_TRIGGERED, bool sync = true);
    virtual ~InterruptHandler();
    virtual void setLine(unsigned line, bool state, etiss::uint64 time_ps);
    virtual etiss::int32 execute();
    virtual std::string _getPluginName() const;
 
  protected:
    const InterruptType itype_;
    std::mutex mu_;
    const bool sync_;
    InterruptVector *const vector_;
    InterruptEnable *const enable_;
    std::list<std::pair<etiss::uint64, std::pair<unsigned, bool>>> pending_;
    const std::shared_ptr<etiss::CPUArch> cpuarch_;
    std::set<unsigned> ed_raised_;
    bool empty_;
};
} // namespace etiss
 
#endif