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

module tb;
  // dep packages
  import uvm_pkg::*;
  import dv_utils_pkg::*;
  import kmac_env_pkg::*;
  import kmac_test_pkg::*;
  import kmac_reg_pkg::*;

  // macro includes
  `include "uvm_macros.svh"
  `include "dv_macros.svh"

  wire clk, rst_n;
  wire devmode;
  wire idle;
  wire [NUM_MAX_INTERRUPTS-1:0] interrupts;
  // Interrupt wires
  wire intr_kmac_done, intr_kmac_fifo_empty, intr_kmac_err;
  // keymgr/kmac sideload wires
  keymgr_pkg::hw_key_req_t kmac_sideload_key;
  // keymgr kdf interface wires
  wire [KDF_DIGEST_SIZE-1:0] kdf_digest;

  // interfaces
  clk_rst_if clk_rst_if(.clk(clk), .rst_n(rst_n));

  pins_if #(1)                   devmode_if(devmode);
  pins_if #(1)                   idle_if(idle);
  pins_if #(NUM_MAX_INTERRUPTS)  intr_if(interrupts);

  tl_if tl_if(.clk(clk), .rst_n(rst_n));

  kmac_sideload_if sideload_if();

  // edn_clk, edn_rst_n and edn_if is defined and driven in below macro
  `DV_EDN_IF_CONNECT

  // dut
  kmac #(.EnMasking(`EN_MASKING), .ReuseShare(`REUSE_SHARE)) dut (
    .clk_i                (clk                      ),
    .rst_ni               (rst_n                    ),

    // TLUL interface
    .tl_i                 (tl_if.h2d                ),
    .tl_o                 (tl_if.d2h                ),

    // KeyMgr sideload key interface
    .keymgr_key_i         (sideload_if.sideload_key ),

    // KeyMgr KDF datapath
    //
    // TODO: this is set to 0 for the time being to get the csr tests passing.
    //       this will eventually be hooked up to the kmac<->keymgr agent.
    .keymgr_kdf_i         ('0                       ),

    // Interrupts
    .intr_kmac_done_o     (intr_kmac_done           ),
    .intr_fifo_empty_o    (intr_kmac_fifo_empty     ),
    .intr_kmac_err_o      (intr_kmac_err            ),

    // Idle interface
    .idle_o               (idle                     ),

    // TODO: hook up interfaces for:
    //
    // 1) KDF
    // 2) csrng/edn

    // edn
    .clk_edn_i                  (edn_clk    ),
    .rst_edn_ni                 (edn_rst_n  ),
    .entropy_o                  (edn_if.req ),
    .entropy_i                  ({edn_if.ack, edn_if.d_data})
  );

  // Interface assignments

  // Interrupt interface
  assign interrupts[KmacDone]       = intr_kmac_done;
  assign interrupts[KmacFifoEmpty]  = intr_kmac_fifo_empty;
  assign interrupts[KmacErr]        = intr_kmac_done;

  initial begin
    // drive clk and rst_n from clk_if
    clk_rst_if.set_active();
    uvm_config_db#(virtual clk_rst_if)::set(null, "*.env", "clk_rst_vif", clk_rst_if);
    uvm_config_db#(intr_vif)::set(null, "*.env", "intr_vif", intr_if);
    uvm_config_db#(devmode_vif)::set(null, "*.env", "devmode_vif", devmode_if);
    uvm_config_db#(virtual tl_if)::set(null, "*.env.m_tl_agent*", "vif", tl_if);
    uvm_config_db#(virtual pins_if#(1))::set(null, "*.env", "idle_vif", idle_if);
    uvm_config_db#(virtual kmac_sideload_if)::set(null, "*.env", "sideload_vif", sideload_if);
    $timeformat(-12, 0, " ps", 12);
    run_test();
  end

endmodule