hw/dv/sv/i2c_agent/i2c_driver.sv

// Copyright lowRISC contributors.
// Licensed under the Apache License, Version 2.0, see LICENSE for details.
// SPDX-License-Identifier: Apache-2.0

class i2c_driver extends dv_base_driver #(i2c_item, i2c_agent_cfg);
  `uvm_component_utils(i2c_driver)

  // the base class provides the following handles for use:
  i2c_agent_cfg cfg;

  `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);
    reset_signals();
    get_and_drive();
  endtask

  // reset signals
  virtual task reset_signals();
    cfg.vif.scl_i <= 1'b1;
    cfg.vif.sda_i <= 1'b1;
  endtask : reset_signals

  // 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 : i2c_driver