passthrough_target_socket.h

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#ifndef TLM_UTILS_PASSTHROUGH_TARGET_SOCKET_H_INCLUDED_
#define TLM_UTILS_PASSTHROUGH_TARGET_SOCKET_H_INCLUDED_

#include <tlm>
#include "tlm_utils/convenience_socket_bases.h"

namespace tlm_utils {

template< typename MODULE, unsigned int BUSWIDTH, typename TYPES
        , sc_core::sc_port_policy POL = sc_core::SC_ONE_OR_MORE_BOUND >
class passthrough_target_socket_b
  : public tlm::tlm_target_socket<BUSWIDTH, TYPES, 1, POL>
  , protected passthrough_socket_base
{
public:
  typedef typename TYPES::tlm_payload_type              transaction_type;
  typedef typename TYPES::tlm_phase_type                phase_type;
  typedef tlm::tlm_sync_enum                            sync_enum_type;
  typedef tlm::tlm_fw_transport_if<TYPES>               fw_interface_type;
  typedef tlm::tlm_bw_transport_if<TYPES>               bw_interface_type;
  typedef tlm::tlm_target_socket<BUSWIDTH,TYPES,1,POL>  base_type;

public:
  static const char* default_name()
    { return sc_core::sc_gen_unique_name("passthrough_target_socket"); }

  explicit passthrough_target_socket_b(const char* n = default_name())
    : base_type(n)
    , m_process(this)
  {
    bind(m_process);
  }

  using base_type::bind;

  // REGISTER_XXX
  void register_nb_transport_fw(MODULE* mod,
                                sync_enum_type (MODULE::*cb)(transaction_type&,
                                                             phase_type&,
                                                             sc_core::sc_time&))
  {
    m_process.set_nb_transport_ptr(mod, cb);
  }

  void register_b_transport(MODULE* mod,
                            void (MODULE::*cb)(transaction_type&,
                                               sc_core::sc_time&))
  {
    m_process.set_b_transport_ptr(mod, cb);
  }

  void register_transport_dbg(MODULE* mod,
                              unsigned int (MODULE::*cb)(transaction_type&))
  {
    m_process.set_transport_dbg_ptr(mod, cb);
  }

  void register_get_direct_mem_ptr(MODULE* mod,
                                   bool (MODULE::*cb)(transaction_type&,
                                                      tlm::tlm_dmi&))
  {
    m_process.set_get_direct_mem_ptr(mod, cb);
  }

private:
  class process
    : public tlm::tlm_fw_transport_if<TYPES>
    , protected convenience_socket_cb_holder
  {
  public:
    typedef sync_enum_type (MODULE::*NBTransportPtr)(transaction_type&,
                                                     phase_type&,
                                                     sc_core::sc_time&);
    typedef void (MODULE::*BTransportPtr)(transaction_type&,
                                            sc_core::sc_time&);
    typedef unsigned int (MODULE::*TransportDbgPtr)(transaction_type&);
    typedef bool (MODULE::*GetDirectMem_ptr)(transaction_type&,
                                               tlm::tlm_dmi&);

    explicit process(passthrough_socket_base* owner)
      : convenience_socket_cb_holder(owner), m_mod(0)
      , m_nb_transport_ptr(0)
      , m_b_transport_ptr(0)
      , m_transport_dbg_ptr(0)
      , m_get_direct_mem_ptr(0)
    {
    }
  
    void set_nb_transport_ptr(MODULE* mod, NBTransportPtr p)
    {
      if (m_nb_transport_ptr) {
        display_warning("non-blocking callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_nb_transport_ptr = p;
    }

    void set_b_transport_ptr(MODULE* mod, BTransportPtr p)
    {
      if (m_b_transport_ptr) {
        display_warning("blocking callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_b_transport_ptr = p;
    }

    void set_transport_dbg_ptr(MODULE* mod, TransportDbgPtr p)
    {
      if (m_transport_dbg_ptr) {
        display_warning("debug callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_transport_dbg_ptr = p;
    }

    void set_get_direct_mem_ptr(MODULE* mod, GetDirectMem_ptr p)
    {
      if (m_get_direct_mem_ptr) {
        display_warning("get DMI pointer callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_get_direct_mem_ptr = p;
    }

    sync_enum_type nb_transport_fw(transaction_type& trans,
                                   phase_type& phase,
                                   sc_core::sc_time& t)
    {
      if (m_nb_transport_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_nb_transport_ptr)(trans, phase, t);
      }
      display_error("no non-blocking callback registered");
      return tlm::TLM_COMPLETED;
    }

    void b_transport(transaction_type& trans, sc_core::sc_time& t)
    {
      if (m_b_transport_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_b_transport_ptr)(trans, t);
      }
      display_error("no blocking callback registered");
    }

    unsigned int transport_dbg(transaction_type& trans)
    {
      if (m_transport_dbg_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_transport_dbg_ptr)(trans);
      }
      // No debug support
      return 0;
    }

    bool get_direct_mem_ptr(transaction_type& trans,
                            tlm::tlm_dmi&  dmi_data)
    {
      if (m_get_direct_mem_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_get_direct_mem_ptr)(trans, dmi_data);
      }
      // No DMI support
      dmi_data.allow_read_write();
      dmi_data.set_start_address(0x0);
      dmi_data.set_end_address((sc_dt::uint64)-1);
      return false;
    }

  private:
    MODULE* m_mod;
    NBTransportPtr m_nb_transport_ptr;
    BTransportPtr m_b_transport_ptr;
    TransportDbgPtr m_transport_dbg_ptr;
    GetDirectMem_ptr m_get_direct_mem_ptr;
  };

private:
  const sc_core::sc_object* get_socket() const { return this; }
private:
  process m_process;
};

template< typename MODULE, unsigned int BUSWIDTH = 32
        , typename TYPES = tlm::tlm_base_protocol_types >
class passthrough_target_socket
  : public passthrough_target_socket_b<MODULE,BUSWIDTH,TYPES>
{
  typedef passthrough_target_socket_b<MODULE,BUSWIDTH,TYPES> socket_b;
public:
  passthrough_target_socket() : socket_b() {}
  explicit passthrough_target_socket(const char* name) : socket_b(name) {}
};

template< typename MODULE, unsigned int BUSWIDTH = 32
        , typename TYPES = tlm::tlm_base_protocol_types >
class passthrough_target_socket_optional
  : public passthrough_target_socket_b<MODULE,BUSWIDTH,TYPES,sc_core::SC_ZERO_OR_MORE_BOUND>
{
  typedef passthrough_target_socket_b<MODULE,BUSWIDTH,TYPES,sc_core::SC_ZERO_OR_MORE_BOUND> socket_b;
public:
  passthrough_target_socket_optional() : socket_b() {}
  explicit passthrough_target_socket_optional(const char* name) : socket_b(name) {}
};

//ID Tagged version
template< typename MODULE, unsigned int BUSWIDTH, typename TYPES
        , sc_core::sc_port_policy POL = sc_core::SC_ONE_OR_MORE_BOUND >
class passthrough_target_socket_tagged_b
  : public tlm::tlm_target_socket<BUSWIDTH, TYPES, 1, POL>
  , protected passthrough_socket_base
{
public:
  typedef typename TYPES::tlm_payload_type              transaction_type;
  typedef typename TYPES::tlm_phase_type                phase_type;
  typedef tlm::tlm_sync_enum                            sync_enum_type;
  typedef tlm::tlm_fw_transport_if<TYPES>               fw_interface_type;
  typedef tlm::tlm_bw_transport_if<TYPES>               bw_interface_type;
  typedef tlm::tlm_target_socket<BUSWIDTH,TYPES,1,POL>  base_type;

  static const char* default_name()
    { return sc_core::sc_gen_unique_name("passthrough_target_socket_tagged"); }

public:
  explicit passthrough_target_socket_tagged_b(const char* n = default_name())
    : base_type(n)
    , m_process(this)
  {
    bind(m_process);
  }

  using base_type::bind;

  // REGISTER_XXX
  void register_nb_transport_fw(MODULE* mod,
                                sync_enum_type (MODULE::*cb)(int id,
                                                             transaction_type&,
                                                             phase_type&,
                                                             sc_core::sc_time&),
                                int id)
  {
    m_process.set_nb_transport_ptr(mod, cb);
    m_process.set_nb_transport_user_id(id);
  }

  void register_b_transport(MODULE* mod,
                            void (MODULE::*cb)(int id,
                                               transaction_type&,
                                               sc_core::sc_time&),
                            int id)
  {
    m_process.set_b_transport_ptr(mod, cb);
    m_process.set_b_transport_user_id(id);
  }

  void register_transport_dbg(MODULE* mod,
                              unsigned int (MODULE::*cb)(int id,
                                                         transaction_type&),
                              int id)
  {
    m_process.set_transport_dbg_ptr(mod, cb);
    m_process.set_transport_dbg_user_id(id);
  }

  void register_get_direct_mem_ptr(MODULE* mod,
                                   bool (MODULE::*cb)(int id,
                                                      transaction_type&,
                                                      tlm::tlm_dmi&),
                                   int id)
  {
    m_process.set_get_direct_mem_ptr(mod, cb);
    m_process.set_get_dmi_user_id(id);
  }

private:
  class process
    : public tlm::tlm_fw_transport_if<TYPES>
    , protected convenience_socket_cb_holder
  {
  public:
    typedef sync_enum_type (MODULE::*NBTransportPtr)(int id,
                                                     transaction_type&,
                                                     phase_type&,
                                                     sc_core::sc_time&);
    typedef void (MODULE::*BTransportPtr)(int id,
                                          transaction_type&,
                                          sc_core::sc_time&);
    typedef unsigned int (MODULE::*TransportDbgPtr)(int id,
                                                    transaction_type&);
    typedef bool (MODULE::*GetDirectMem_ptr)(int id,
                                             transaction_type&,
                                             tlm::tlm_dmi&);

    process(passthrough_socket_base* owner)
      : convenience_socket_cb_holder(owner), m_mod(0)
      , m_nb_transport_ptr(0)
      , m_b_transport_ptr(0)
      , m_transport_dbg_ptr(0)
      , m_get_direct_mem_ptr(0)
      , m_nb_transport_user_id(0)
      , m_b_transport_user_id(0)
      , m_transport_dbg_user_id(0)
      , m_get_dmi_user_id(0)
    {
    }

    void set_nb_transport_user_id(int id) { m_nb_transport_user_id = id; }
    void set_b_transport_user_id(int id) { m_b_transport_user_id = id; }
    void set_transport_dbg_user_id(int id) { m_transport_dbg_user_id = id; }
    void set_get_dmi_user_id(int id) { m_get_dmi_user_id = id; }

    void set_nb_transport_ptr(MODULE* mod, NBTransportPtr p)
    {
      if (m_nb_transport_ptr) {
        display_warning("non-blocking callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_nb_transport_ptr = p;
    }

    void set_b_transport_ptr(MODULE* mod, BTransportPtr p)
    {
      if (m_b_transport_ptr) {
        display_warning("blocking callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_b_transport_ptr = p;
    }

    void set_transport_dbg_ptr(MODULE* mod, TransportDbgPtr p)
    {
      if (m_transport_dbg_ptr) {
        display_warning("debug callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_transport_dbg_ptr = p;
    }

    void set_get_direct_mem_ptr(MODULE* mod, GetDirectMem_ptr p)
    {
      if (m_get_direct_mem_ptr) {
        display_warning("get DMI pointer callback already registered");
        return;
      }
      sc_assert(!m_mod || m_mod == mod);
      m_mod = mod;
      m_get_direct_mem_ptr = p;
    }

    sync_enum_type nb_transport_fw(transaction_type& trans,
                                   phase_type& phase,
                                   sc_core::sc_time& t)
    {
      if (m_nb_transport_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_nb_transport_ptr)(m_nb_transport_user_id, trans, phase, t);
      }
      display_error("no non-blocking callback registered");
      return tlm::TLM_COMPLETED;
    }

    void b_transport(transaction_type& trans, sc_core::sc_time& t)
    {
      if (m_b_transport_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_b_transport_ptr)(m_b_transport_user_id, trans, t);
      }
      display_error("no blocking callback registered");
    }

    unsigned int transport_dbg(transaction_type& trans)
    {
      if (m_transport_dbg_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_transport_dbg_ptr)(m_transport_dbg_user_id, trans);
      }
      // No debug support
      return 0;
    }

    bool get_direct_mem_ptr(transaction_type& trans,
                            tlm::tlm_dmi&  dmi_data)
    {
      if (m_get_direct_mem_ptr) {
        // forward call
        sc_assert(m_mod);
        return (m_mod->*m_get_direct_mem_ptr)(m_get_dmi_user_id, trans, dmi_data);
      }
      // No DMI support
      dmi_data.allow_read_write();
      dmi_data.set_start_address(0x0);
      dmi_data.set_end_address((sc_dt::uint64)-1);
      return false;
    }

  private:
    MODULE* m_mod;
    NBTransportPtr m_nb_transport_ptr;
    BTransportPtr m_b_transport_ptr;
    TransportDbgPtr m_transport_dbg_ptr;
    GetDirectMem_ptr m_get_direct_mem_ptr;
    int m_nb_transport_user_id;
    int m_b_transport_user_id;
    int m_transport_dbg_user_id;
    int m_get_dmi_user_id;
  };

private:
  const sc_core::sc_object* get_socket() const { return this; }
private:
  process m_process;
};

template< typename MODULE, unsigned int BUSWIDTH = 32
        , typename TYPES = tlm::tlm_base_protocol_types >
class passthrough_target_socket_tagged
  : public passthrough_target_socket_tagged_b<MODULE,BUSWIDTH,TYPES>
{
  typedef passthrough_target_socket_tagged_b<MODULE,BUSWIDTH,TYPES> socket_b;
public:
  passthrough_target_socket_tagged() : socket_b() {}
  explicit passthrough_target_socket_tagged(const char* name) : socket_b(name) {}
};

template< typename MODULE, unsigned int BUSWIDTH = 32
        , typename TYPES = tlm::tlm_base_protocol_types >
class passthrough_target_socket_tagged_optional
  : public passthrough_target_socket_tagged_b<MODULE,BUSWIDTH,TYPES,sc_core::SC_ZERO_OR_MORE_BOUND>
{
  typedef passthrough_target_socket_tagged_b<MODULE,BUSWIDTH,TYPES,sc_core::SC_ZERO_OR_MORE_BOUND> socket_b;
public:
  passthrough_target_socket_tagged_optional() : socket_b() {}
  explicit passthrough_target_socket_tagged_optional(const char* name) : socket_b(name) {}
};

} // namespace tlm_utils
#endif // TLM_UTILS_PASSTHROUGH_TARGET_SOCKET_H_INCLUDED_