xref: /gem5/src/systemc/ext/tlm_core/1/req_rsp/interfaces/core_ifs.hh

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  with this work for additional information regarding copyright ownership.
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#ifndef __SYSTEMC_EXT_TLM_CORE_1_REQ_RSP_INTERFACES_CORE_IFS_HH__
#define __SYSTEMC_EXT_TLM_CORE_1_REQ_RSP_INTERFACES_CORE_IFS_HH__

#include "tag.hh"

namespace tlm
{

// Bidirectional blocking interfaces.
template <typename REQ, typename RSP>
class tlm_transport_if : public virtual sc_core::sc_interface
{
  public:
    virtual RSP transport(const REQ &) = 0;

    virtual void
    transport(const REQ &req, RSP &rsp)
    {
        rsp = transport(req);
    }
};

// Uni-directional blocking interfaces.
template <typename T>
class tlm_blocking_get_if : public virtual sc_core::sc_interface
{
  public:
    virtual T get(tlm_tag<T> *t=nullptr) = 0;
    virtual void get(T &t) { t = get(); }
};

template <typename T>
class tlm_blocking_put_if : public virtual sc_core::sc_interface
{
  public:
    virtual void put(const T &t) = 0;
};

// Uni-directional non blocking interfaces.

template <typename T>
class tlm_nonblocking_get_if : public virtual sc_core::sc_interface
{
  public:
    virtual bool nb_get(T &t) = 0;
    virtual bool nb_can_get(tlm_tag<T> *t=nullptr) const = 0;
    virtual const sc_core::sc_event &
        ok_to_get(tlm_tag<T> *t=nullptr) const = 0;
};

template <typename T>
class tlm_nonblocking_put_if : public virtual sc_core::sc_interface
{
  public:
    virtual bool nb_put(const T &t) = 0;
    virtual bool nb_can_put(tlm_tag<T> *t=nullptr) const = 0;
    virtual const sc_core::sc_event &
        ok_to_put(tlm_tag<T> *t=nullptr) const = 0;
};

// Combined uni-directional blocking and non blocking.
template <typename T>
class tlm_get_if : public virtual tlm_blocking_get_if<T>,
    public virtual tlm_nonblocking_get_if<T>
{};

template <typename T>
class tlm_put_if : public virtual tlm_blocking_put_if<T>,
    public virtual tlm_nonblocking_put_if<T>
{};

// Peek interfaces.
template <typename T>
class tlm_blocking_peek_if : public virtual sc_core::sc_interface
{
  public:
    virtual T peek(tlm_tag<T> *t=nullptr) const = 0;
    virtual void peek(T &t) const { t = peek(); }
};

template <typename T>
class tlm_nonblocking_peek_if : public virtual sc_core::sc_interface
{
  public:
    virtual bool nb_peek(T &t) const = 0;
    virtual bool nb_can_peek(tlm_tag<T> *t=nullptr) const = 0;
    virtual const sc_core::sc_event &
        ok_to_peek(tlm_tag<T> *t=nullptr) const = 0;
};

template <typename T>
class tlm_peek_if :
    public virtual tlm_blocking_peek_if<T>,
    public virtual tlm_nonblocking_peek_if<T>
{};

// Get_peek interfaces.
template <typename T>
class tlm_blocking_get_peek_if : public virtual tlm_blocking_get_if<T>,
    public virtual tlm_blocking_peek_if<T>
{};

template <typename T>
class tlm_nonblocking_get_peek_if : public virtual tlm_nonblocking_get_if<T>,
    public virtual tlm_nonblocking_peek_if<T>
{};

template <typename T>
class tlm_get_peek_if : public virtual tlm_get_if<T>,
    public virtual tlm_peek_if<T>, public virtual tlm_blocking_get_peek_if<T>,
    public virtual tlm_nonblocking_get_peek_if<T>
{};

} // namespace tlm

#endif /* __SYSTEMC_EXT_TLM_CORE_1_REQ_RSP_INTERFACES_CORE_IFS_HH__ */