hw/ip/i2c/dv/env/i2c_seq_cfg.sv

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

// This clas provides knobs to set the weights for various seq random variables.
class i2c_seq_cfg extends uvm_object;
  `uvm_object_utils(i2c_seq_cfg)

  // Randomization weights in percentages, and other related settings.

  // TODO: This should move to `dv_base_seq_cfg`.
  // maximun number of times the vseq is randomized and rerun.
  uint i2c_min_num_trans         = 10;
  uint i2c_max_num_trans         = 20;

  // parameters configured at test level for *_vseq
  uint i2c_min_addr              = 0;
  uint i2c_max_addr              = 127;
  uint i2c_min_data              = 0;
  uint i2c_max_data              = 255;
  uint i2c_min_dly               = 0;
  uint i2c_max_dly               = 5;
  uint i2c_min_timing            = 1; // at least 1
  uint i2c_max_timing            = 5;
  uint i2c_time_range            = i2c_max_timing - i2c_min_timing;
  uint i2c_min_timeout           = 1;
  uint i2c_max_timeout           = 4;
  uint i2c_max_rxilvl            = 7;
  uint i2c_max_fmtilvl           = 3;

  // assertion probability of sda_interference, scl_interference, and
  // sda_unstable interrupts (in percentage)
  uint i2c_prob_sda_unstable     = 10;
  uint i2c_prob_sda_interference = 10;
  uint i2c_prob_scl_interference = 50;
  uint i2c_min_num_resets        = 30;
  uint i2c_max_num_resets        = 50;

  `uvm_object_new

endclass : i2c_seq_cfg