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//////////////////////////////////////////////////////////////////////
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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 avf_monitor #(N, U) extends uvm_component;
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`uvm_component_param_utils(avf_monitor #(N, U));
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virtual axis_if #(.N(N), .U(U)) vif;
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video_frame_config c_h;
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uvm_analysis_port #(avf_sequence_item) ap;
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uvm_analysis_port #(avf_sequence_item) req;
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// --------------------------------------------------------------------
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function new (string name, uvm_component parent);
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super.new(name,parent);
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endfunction
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// --------------------------------------------------------------------
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function void build_phase(uvm_phase phase);
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ap = new("ap", this);
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req = new("req", this);
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endfunction : build_phase
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// --------------------------------------------------------------------
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task run_phase(uvm_phase phase);
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avf_sequence_item req_item;
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avf_sequence_item ap_item;
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bit sof_received = 0;
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int l, p;
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int offset;
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forever @(vif.cb_m iff vif.cb_m.aresetn === 1)
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begin
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if(vif.cb_s.tvalid & ~vif.cb_m.tready)
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begin
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req_item = avf_sequence_item::type_id::create("req_item");
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req_item.kind = AVF_REQUEST;
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req.write(req_item);
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end
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if(vif.cb_s.tvalid & vif.cb_m.tready)
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begin
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if(vif.cb_s.tuser[0]) // SOF
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begin
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ap_item = avf_sequence_item::type_id::create("ap_item");
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ap_item.kind = AVF_TRANSACTION;
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ap_item.f_h = new();
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ap_item.f_h.init( c_h.pixels_per_line
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, c_h.lines_per_frame
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, c_h.bits_per_pixel
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, c_h.pixels_per_clk
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, c_h.name
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);
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sof_received = 1;
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p = 0;
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l = 0;
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end
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if(sof_received)
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begin
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for(int i = 0; i < ap_item.f_h.pixels_per_clk; i++, p++)
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begin
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offset = i * ap_item.f_h.bytes_per_pixel * 8;
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for(int k = 0; k < ap_item.f_h.bytes_per_pixel; k++)
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ap_item.f_h.lines[l].pixel[p][k * 8 +: 8] = vif.cb_s.tdata[offset + (k * 8) +: 8];
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end
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if(p >= ap_item.f_h.pixels_per_line)
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begin
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p = 0;
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l++;
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end
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if(vif.cb_s.tuser[2]) // EOF
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begin
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ap.write(ap_item);
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sof_received = 0;
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end
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end
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end
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end
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endtask : run_phase
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// --------------------------------------------------------------------
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endclass : avf_monitor
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