SystemC-Components-Test/tests/cxs_tlm/testbench.h

78 lines
2.7 KiB
C++

#ifndef _TESTBENCH_H_
#define _TESTBENCH_H_
#include <cxs/cxs_tlm.h>
#include <scc/cci_util.h>
#include <scc/configurer.h>
#include <scc/observer.h>
#include <scc/sc_variable.h>
#include <scc/tracer.h>
#include <string>
#include <systemc>
#include <tlm/nw/initiator_mixin.h>
#include <tlm/nw/target_mixin.h>
using namespace sc_core;
using namespace sc_dt;
using namespace std;
namespace cxs {
const char* sc_gen_unique_name(const char*, bool preserve_first);
template <unsigned PHIT_WIDTH> struct testbench : public sc_core::sc_module {
using transaction_type = cxs_packet_types::tlm_payload_type;
using phase_type = cxs_packet_types::tlm_phase_type;
sc_core::sc_clock clk{"clk", 1_ns};
sc_core::sc_signal<bool> rst{"rst"};
tlm::nw::initiator_mixin<cxs_pkt_initiator_socket<>, cxs_packet_types> isck{"isck"};
cxs_transmitter<PHIT_WIDTH> tx{"tx"};
cxs_channel<PHIT_WIDTH> cxs_chan{"cxs_chan"};
cxs_receiver<PHIT_WIDTH> rx{"rx"};
tlm::nw::target_mixin<cxs_pkt_target_socket<>, cxs_packet_types> tsck{"tsck"};
testbench()
: testbench(sc_core::sc_gen_unique_name("testbench", false)) {}
testbench(sc_core::sc_module_name const& nm)
: sc_module(nm) {
isck.register_nb_transport_bw(
[this](transaction_type& trans, phase_type& phase, sc_core::sc_time& t) { return this->nb_transport_fw(trans, phase, t); });
tsck.register_nb_transport_fw(
[this](transaction_type& trans, phase_type& phase, sc_core::sc_time& t) { return this->nb_transport_fw(trans, phase, t); });
isck(tx.tsck);
tx.clk_i(clk);
tx.rst_i(rst);
tx.isck(cxs_chan.tsck);
cxs_chan.isck(rx.tsck);
rx.clk_i(clk);
rx.rst_i(rst);
rx.isck(tsck);
cxs_chan.channel_delay.set_value(100_ns);
rx.max_credit.set_value(15);
}
tlm::tlm_sync_enum nb_transport_fw(transaction_type& trans, phase_type& phase, sc_core::sc_time& t) {
if(phase == tlm::nw::REQUEST) {
SCCINFO(SCMOD) << "Received non-blocking transaction with phase " << phase.get_name();
recv.push_back(&trans);
phase = tlm::nw::CONFIRM;
return tlm::TLM_UPDATED;
}
throw std::runtime_error("illegal request in forward path");
}
tlm::tlm_sync_enum nb_transport_bw(transaction_type& trans, phase_type& phase, sc_core::sc_time& t) {
if(phase == tlm::nw::CONFIRM) {
confirmation_evt.notify(sc_core::SC_ZERO_TIME);
return tlm::TLM_ACCEPTED;
}
throw std::runtime_error("illegal response in backward path");
}
sc_core::sc_event confirmation_evt;
scc::fifo_w_cb<cxs_pkt_shared_ptr> recv;
};
} // namespace cxs
#endif // _TESTBENCH_H_