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[/] [qaz_libs/] [trunk/] [BFM/] [src/] [axis_video_frame/] [avf_rx.sv] - Blame information for rev 34

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1 34 qaztronic
//////////////////////////////////////////////////////////////////////
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////                                                              ////
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//// Copyright (C) 2015 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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import axis_video_frame_bfm_pkg::*;
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module
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  avf_rx
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  #(
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    BYTES_PER_PIXEL  = 2,
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    AVF_OUTPUTS      = 4,
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    AVF_TILES        = 1
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  )
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  (
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    ref axis_video_frame_bfm_class f_tx_h[AVF_TILES],
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    ref axis_video_frame_bfm_class f_rx_h[AVF_TILES]
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  );
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  // --------------------------------------------------------------------
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  //
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  localparam AVF_VERTICAL_BLANKING = 20;
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  task automatic
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    init_avf_rx;
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      f_rx_h[0].run_rx_q(RIGHT_DOWN);
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      f_rx_h[1].run_rx_q(RIGHT_UP);
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      f_rx_h[2].run_rx_q(LEFT_DOWN);
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      f_rx_h[3].run_rx_q(LEFT_UP);
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  endtask: init_avf_rx
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  // --------------------------------------------------------------------
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  //
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  task
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    wait_for_rx_frames
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    (
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      input int unsigned count
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    );
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    repeat(count)
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      @(f_rx_h[0].rx_frame_done);
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  endtask: wait_for_rx_frames
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  // --------------------------------------------------------------------
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  //
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  semaphore get_frame_semaphore = new(1);
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  logic get_frame_active = 0;
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  task automatic
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    get_frame;
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      if(get_frame_semaphore.try_get() == 0)
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      begin
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        $display("^^^ %16.t | %m | ERROR! Already getting a frame.", $time);
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        return;
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      end
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      $display("^^^ %16.t | %m | getting a frame.", $time);
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      get_frame_active = 1;
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      fork
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      begin
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        f_rx_h[0].avf_fork_rx(RIGHT_DOWN);
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        f_rx_h[1].avf_fork_rx(RIGHT_UP);
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        f_rx_h[2].avf_fork_rx(LEFT_DOWN);
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        f_rx_h[3].avf_fork_rx(LEFT_UP);
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        wait fork;
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        get_frame_active = 0;
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        $display("^^^ %16.t | %m | Got a frame.", $time);
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        get_frame_semaphore.put();
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      end
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      join_none
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  endtask: get_frame
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  // --------------------------------------------------------------------
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  //
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  import video_frame_pkg::*;
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  function automatic
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    int compare_frame;
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    int mismatch_count[AVF_TILES];
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    $display("^^^ %16.t | %m", $time);
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    foreach(f_rx_h[i])
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      mismatch_count[i] = f_rx_h[i].f_h.compare(8, f_tx_h[i].f_h);
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  endfunction: compare_frame
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  // --------------------------------------------------------------------
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  //
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endmodule
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