passthrough_target_socket.h

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#ifndef __SYSTEMC_EXT_TLM_UTILS_PASSTHROUGH_TARGET_SOCKET_H__
#define __SYSTEMC_EXT_TLM_UTILS_PASSTHROUGH_TARGET_SOCKET_H__

#include "../core/sc_port.hh"
#include "../core/sc_time.hh"
#include "../tlm_core/2/sockets/target_socket.hh"
#include "../utils/sc_report_handler.hh"
#include "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 /* __SYSTEMC_EXT_TLM_UTILS_PASSTHROUGH_TARGET_SOCKET_H__ */