| // Copyright lowRISC contributors. |
| // Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| // SPDX-License-Identifier: Apache-2.0 |
| |
| class csrng_device_driver extends csrng_driver; |
| `uvm_component_utils(csrng_device_driver) |
| `uvm_component_new |
| |
| virtual task run_phase(uvm_phase phase); |
| // base class forks off reset_signals() and get_and_drive() tasks |
| super.run_phase(phase); |
| endtask |
| |
| // TODO: drive_trans |
| // reset signals |
| virtual task reset_signals(); |
| if (cfg.if_mode == Device) begin |
| cfg.vif.req_push_if.ready_int <= '0; |
| cfg.vif.genbits_push_if.valid_int <= '0; |
| end |
| // end else begin |
| // cfg.vif.ack_int <= '0; |
| // end |
| // cfg.vif.d_data_int <= 'x; |
| endtask |
| |
| // drive trans received from sequencer |
| virtual task get_and_drive(); |
| forever begin |
| seq_item_port.get_next_item(req); |
| $cast(rsp, req.clone()); |
| rsp.set_id_info(req); |
| `uvm_info(`gfn, $sformatf("rcvd item:\n%0s", req.sprint()), UVM_HIGH) |
| // TODO: do the driving part |
| // |
| // send rsp back to seq |
| `uvm_info(`gfn, "item sent", UVM_HIGH) |
| seq_item_port.item_done(rsp); |
| end |
| endtask |
| |
| endclass |
