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TLM2 extending tlm::tlm_fw_transport_if and tlm::tlm_bw_transport_if to add custome methods to interfaces

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Is it possible to add another set of function to what is already provided by  tlm::tlm_fw_transport_if and  tlm::tlm_bw_transport_if


Actually I tried to create a new interface like the following (see two additional functions read and write)


class target_interface : public virtual tlm::tlm_fw_transport_if<tlm::tlm_base_protocol_types> {
   void write(uint64_t add, uint32_t data){
        cout<<"inside write\n";

    uint32_t read(uint64_t add){
        cout<<"inside read\n";
        return 0x0;

    void print(){
        cout<<"nside print\n";

    bool get_direct_mem_ptr(tlm::tlm_generic_payload& trans,tlm::tlm_dmi&  dmi_data){
        cout<<"[iNITIATOR] get_direct_mem_ptr\n";
        return 0;
    unsigned int transport_dbg(tlm::tlm_generic_payload& r){
        cout<<"[iNITIATOR] transport_dbg\n";
        return 0;
    void b_transport(tlm::tlm_generic_payload& trans, sc_core::sc_time &t){
        cout<<"[iNITIATOR] b_transport\n";
    tlm::tlm_sync_enum nb_transport_fw(tlm::tlm_generic_payload& trans, tlm::tlm_phase& phase, sc_core::sc_time& t){
        cout<<"[iNITIATOR] nb_transport_fw\n";
        return tlm::TLM_ACCEPTED;





But when I call read as following,


class ufs_initiator :public sc_module, public initiator_interface {
    public :
    //tlm::tlm_initiator_socket<32,ufs_if<uint32_t> > initiator_port;
    tlm::tlm_initiator_socket<32> initiator_port;
    //initiator_interface initiator_port;
    ufs_initiator(sc_module_name name):sc_module(name),
        cout<<"Component Creation: "<<sc_object::name()<<"\n";
    void run() {
        wait(10, SC_NS);
        tlm::tlm_generic_payload        transaction;
        sc_time                         t = SC_ZERO_TIME;

        //initiator_port.write(0x0, 0XFF);
    tlm::tlm_sync_enum nb_transport_bw(tlm::tlm_generic_payload &,tlm::tlm_phase &,sc_core::sc_time & ){return tlm::TLM_ACCEPTED;};
    void invalidate_direct_mem_ptr(sc_dt::uint64 start_range,sc_dt::uint64 end_range){};

I get the error 

'class tlm::tlm_fw_transport_if<tlm::tlm_base_protocol_types>' has no member named 'read'


Did I missed something here ?






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When you declare the initiator socket, it expects to access an implementation of the functions in the tlm_fw_transport_if - there is no read() function in the tlm_transport_fw_if.


If you wanted to follow this approach, you'd have to declare your own sockets.




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