// The driver is responsible for driving transactions to the DUT
// All it does is to get a transaction from the mailbox if it is
// available and drive it out into the DUT interface.
class driver extends uvm_driver #(Item);
  `uvm_component_utils(driver)
  function new(string name = "driver", uvm_component parent = null);
    super.new(name, parent);
  endfunction

  virtual des_if vif;

  virtual function void build_phase(uvm_phase phase);
    super.build_phase(phase);

    if (!uvm_config_db#(virtual des_if)::get(this, "", "des_vif", vif))
      `uvm_fatal("DRV", "Could not get vif")
  endfunction

  virtual task run_phase(uvm_phase phase);
    super.run_phase(phase);
    forever begin
      Item m_item;

      `uvm_info("DRV", $sformatf("Wait for item from sequencer"), UVM_HIGH)

      seq_item_port.get_next_item(m_item);
      drive_item(m_item);
      seq_item_port.item_done();
    end
  endtask

  virtual task drive_item(Item m_item);
    @(vif.cb);

    vif.cb.inp <= m_item.inp;
  endtask
endclass