Subversion Repositories pcie_vera_tb

// ===========================================================================

// File    : pcie_phy_packet.vri

// Author  : cmagleby

// Date    : Mon Dec 3 11:03:46 MST 2007

// Project : TI PHY design

//

// Copyright (c) notice

// This code adheres to the GNU public license

//

// ===========================================================================

//

// $Id: pcie_phy_packet.vri,v 1.1.1.1 2007-12-05 18:37:07 cmagleby Exp $

//

// ===========================================================================

//

// $Log: not supported by cvs2svn $

//

// ===========================================================================

// Function : This file is a class of pcie packet can be used for all Phy

// packet types.

//

// ===========================================================================

// ===========================================================================

#include 

class pcie_phy_packet {

  bit [7:0] com;

  bit [7:0] link;

  bit [7:0] lane;

  bit [7:0] n_fts;

  bit [7:0] rateid;

  bit [7:0] train_cntrl;

  bit [7:0] ts_id;

  bit [7:0] idle;

  bit [7:0] skp;

  bit [7:0] fts;

  integer   length;

  bit [17:0] temp_packet[];

  //methods

  task new(

    bit [7:0] ic_link = 8'hf7,

    bit [7:0] ic_lane = 8'hf7,

    bit [7:0] ic_nfts = 8'hff,

    bit [7:0] ic_rateid = 8'h2,

    bit [7:0] ic_train_cntrl = 8'h0,

    bit [7:0] ic_ts_id = 8'h4a) {

    link        = ic_link;

    lane        = ic_lane;

    n_fts       = ic_nfts;

    rateid      = ic_rateid;

    train_cntrl = ic_train_cntrl;

    ts_id       = ic_ts_id;

    com         = 8'hbc;

    idle        = 8'h7c;

    skp         = 8'h1c;

    fts         = 8'h3c;

  }

  task build_packet (string pkt_type = "ts") {

    if (pkt_type == "ts") {

      length = 8;

      if (link == 8'hf7) temp_packet[0]  = {2'b11,link,com};

      else temp_packet[0]  = {2'b01,link,com};

      if (lane == 8'hf7) temp_packet[1]  = {2'b1,n_fts,lane};

      else temp_packet[1]  = {2'b0,n_fts,lane};

      temp_packet[2]  = {2'b0,train_cntrl,rateid};

      temp_packet[3]  = {2'b0,ts_id,ts_id};

      temp_packet[4]  = {2'b0,ts_id,ts_id};

      temp_packet[5]  = {2'b0,ts_id,ts_id};

      temp_packet[6]  = {2'b0,ts_id,ts_id};

      temp_packet[7] = {2'b0,ts_id,ts_id};

      printf ("building training set packet (%0h)\n",

              {temp_packet[7][15:0],temp_packet[6][15:0],

               temp_packet[5][15:0],temp_packet[4][15:0],

               temp_packet[3][15:0],temp_packet[2][15:0],

               temp_packet[1][15:0],temp_packet[0][15:0]});

    }

    else if (pkt_type == "eidle") {

      length = 2;

      temp_packet[0] = {2'b11,idle,com};

      temp_packet[1] = {2'b11,idle,idle};

      printf ("building eidle packet (%0h)\n",{temp_packet[1][15:0],temp_packet[0][15:0]});

    }

    else if (pkt_type == "skip"){

      length = 2;

      temp_packet[0] = {2'b11,skp,com};

      temp_packet[1] = {2'b11,skp,skp};

      printf ("building skip packet (%0h)\n",{temp_packet[1][15:0],temp_packet[0][15:0]});

    }

    else if (pkt_type == "fast_ts"){

      length = 2;

      temp_packet[0] = {2'b11,fts,com};

      temp_packet[1] = {2'b11,fts,fts};

      printf ("building fts packet (%0h)\n",{temp_packet[1][15:0],temp_packet[0][15:0]});

    }

  }

}