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[/] [qaz_libs/] [trunk/] [video/] [src/] [avf_kernel_1x_buffer.sv] - Blame information for rev 49

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1 49 qaztronic
//////////////////////////////////////////////////////////////////////
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////                                                              ////
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//// Copyright (C) 2019 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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module
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  avf_kernel_1x_buffer #(N, U, L, AW)
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  (
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    axis_if axis_in,
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    axis_if axis_out,
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    input   aclk,
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    input   aresetn
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  );
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  // --------------------------------------------------------------------
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  axis_if #(.N(N*L*L), .U(U+1)) a_buffer(.*);
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  avf_kernel_buffer #(N, U, L, AW)
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    kernel_i(.axis_out(a_buffer), .*);
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  // --------------------------------------------------------------------
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  reg [(N*8)-1:0] kernel[L][L];
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  generate
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    for(genvar j = 0; j < L * L; j++)
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    begin: kernel_gen
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      assign  kernel[j/L][j%L] = a_buffer.tdata[j*N*8 +: N*8];
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    end
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  endgenerate
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  // --------------------------------------------------------------------
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  axis_if #(.N(N), .U(U+1)) a_out(.*);
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  axis_alias alias_i(.axis_in(a_out), .*);
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  // --------------------------------------------------------------------
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  assign a_buffer.tuser[3] = a_buffer.tvalid & a_buffer.tready;
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  //                                              EOF   SOL   SOF
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  localparam logic[U:0] TUSER_MASK[3] = '{ {1'b0, 1'b0, 1'b1, 1'b1},   // first
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                                           {1'b0, 1'b0, 1'b0, 1'b0},   // middle
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                                           {1'b1, 1'b1, 1'b0, 1'b0} }; // last
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  axis_down_shift #(.N(N*L*L), .S(L*L), .U(U+1), .TUSER_MASK(TUSER_MASK))
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    down_i(.axis_in(a_buffer), .axis_out(a_out), .*);
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// --------------------------------------------------------------------
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endmodule

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