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[/] [qaz_libs/] [trunk/] [BFM/] [src/] [axis_video_frame/] [s_avf_api.svh] - Blame information for rev 45

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1 45 qaztronic
//////////////////////////////////////////////////////////////////////
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////                                                              ////
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//// Copyright (C) 2018 Authors and OPENCORES.ORG                 ////
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////                                                              ////
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//// This source file may be used and distributed without         ////
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//// restriction provided that this copyright statement is not    ////
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//// removed from the file and that any derivative work contains  ////
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//// the original copyright notice and the associated disclaimer. ////
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////                                                              ////
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//// This source file is free software; you can redistribute it   ////
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//// and/or modify it under the terms of the GNU Lesser General   ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any   ////
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//// later version.                                               ////
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////                                                              ////
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//// This source is distributed in the hope that it will be       ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied   ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR      ////
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//// PURPOSE.  See the GNU Lesser General Public License for more ////
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//// details.                                                     ////
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////                                                              ////
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//// You should have received a copy of the GNU Lesser General    ////
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//// Public License along with this source; if not, download it   ////
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//// from http://www.opencores.org/lgpl.shtml                     ////
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////                                                              ////
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//////////////////////////////////////////////////////////////////////
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class s_avf_api
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  extends uvm_sequence #(avf_sequence_item);
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  `uvm_object_utils(s_avf_api)
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  avf_sequence_item item;
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  // --------------------------------------------------------------------
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  mailbox #(video_frame_class) frame_buffer;
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  int pixels_per_line;
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  int lines_per_frame;
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  int bits_per_pixel;
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  int bytes_per_pixel;
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  int pixels_per_clk;
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  // --------------------------------------------------------------------
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  function void init( int pixels_per_line
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                    , int lines_per_frame
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                    , int bits_per_pixel
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                    , int pixels_per_clk
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                    );
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    this.pixels_per_line  = pixels_per_line;
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    this.lines_per_frame  = lines_per_frame;
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    this.bits_per_pixel   = bits_per_pixel;
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    this.bytes_per_pixel  = (bits_per_pixel % 8 == 0)
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                          ? (bits_per_pixel / 8)
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                          : (bits_per_pixel / 8) + 1;
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    this.pixels_per_clk   = pixels_per_clk;
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  endfunction : init
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  // --------------------------------------------------------------------
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  task automatic put_frame(string pattern, int pixel = 0);
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    video_frame_class f_h = new;
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    f_h.init( pixels_per_line
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            , lines_per_frame
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            , bits_per_pixel
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            , pixels_per_clk
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            );
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    case(pattern.tolower)
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      "constant":   f_h.make_constant(pixel);
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      "counting":   f_h.make_counting();
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      "horizontal": f_h.make_horizontal();
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      "vertical":   f_h.make_vertical();
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      "random":     f_h.make_random();
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      default:      `uvm_fatal(get_name(), "Pattern not supported!")
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    endcase
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    frame_buffer.put(f_h);
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    uvm_report_info(get_name(), $sformatf("| put_frame(%s)", pattern.tolower));
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  endtask: put_frame
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  // --------------------------------------------------------------------
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  task send_frame_buffer( uvm_sequencer_base seqr
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                        , uvm_sequence_base parent = null
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                        );
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    this.start(seqr, parent);
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  endtask
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  // --------------------------------------------------------------------
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  task body();
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    item = avf_sequence_item::type_id::create("avf_sequence_item");
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    start_item(item);
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    if(frame_buffer.num() != 0)
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      item.frame_buffer = this.frame_buffer;
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    finish_item(item);
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  endtask
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  // --------------------------------------------------------------------
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  function new(string name = "s_avf_api");
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    super.new(name);
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    frame_buffer = new;
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  endfunction
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// --------------------------------------------------------------------
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endclass : s_avf_api

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