src/arch/arm/fastmodel/protocol/signal_interrupt.hh

/*
 * Copyright 2019 Google, Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met: redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer;
 * redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution;
 * neither the name of the copyright holders nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Authors: Gabe Black
 */

#ifndef __ARCH_ARM_FASTMODEL_PROTOCOL_SIGNAL_INTERRUPT_HH__
#define __ARCH_ARM_FASTMODEL_PROTOCOL_SIGNAL_INTERRUPT_HH__

#include <string>
#include <systemc>
#include <tlm>

struct SignalInterruptDummyProtocolType {};

class SignalInterruptFwIf : public virtual sc_core::sc_interface
{
  public:
    virtual ~SignalInterruptFwIf() {}
    virtual void ppi(uint8_t cpu, uint32_t num, bool state) = 0;
    virtual void spi(uint32_t num, bool state) = 0;
};

class SignalInterruptBwIf : public virtual sc_core::sc_interface
{
  public:
    virtual ~SignalInterruptBwIf() {}
};

class SignalInterruptSlaveBase : public SignalInterruptFwIf
{
  public:
    SignalInterruptSlaveBase(const std::string &name) {}
};

class SignalInterruptInitiatorSocket :
    public tlm::tlm_base_initiator_socket<64, SignalInterruptFwIf,
                                          SignalInterruptBwIf>
{
  private:
    SignalInterruptBwIf dummyBwIf;

  public:
    typedef tlm::tlm_base_initiator_socket<64, SignalInterruptFwIf,
                                           SignalInterruptBwIf> Base;

    using Base::bind;
    using Base::operator();

    SignalInterruptInitiatorSocket() : Base()
    {
        get_base_export().bind(dummyBwIf);
    }
    SignalInterruptInitiatorSocket(const char *name) : Base(name)
    {
        get_base_export().bind(dummyBwIf);
    }

    const char *
    kind() const override
    {
        return "SignalInterruptInitiatorSocket";
    }

    std::type_index
    get_protocol_types() const override
    {
        return typeid(SignalInterruptDummyProtocolType);
    }
};

class SignalInterruptTargetSocket :
    public tlm::tlm_base_target_socket<64, SignalInterruptFwIf,
                                       SignalInterruptBwIf>
{
  public:
    typedef tlm::tlm_base_target_socket<64, SignalInterruptFwIf,
                                        SignalInterruptBwIf> Base;

    using Base::bind;
    using Base::operator();

    using Base::Base;

    const char *
    kind() const override
    {
        return "SignalInterruptInitiatorSocket";
    }

    std::type_index
    get_protocol_types() const override
    {
        return typeid(SignalInterruptDummyProtocolType);
    }
};

#endif // __ARCH_ARM_FASTMODEL_PROTOCOL_SIGNAL_INTERRUPT_HH__