// ***************************************************************************
// ***************************************************************************
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
//
// Each core or library found in this collection may have its own licensing terms. 
// The user should keep this in in mind while exploring these cores. 
//
// Redistribution and use in source and binary forms,
// with or without modification of this file, are permitted under the terms of either
//  (at the option of the user):
//
//   1. The GNU General Public License version 2 as published by the
//      Free Software Foundation, which can be found in the top level directory, or at:
// https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html
//
// OR
//
//   2.  An ADI specific BSD license as noted in the top level directory, or on-line at:
// https://github.com/analogdevicesinc/hdl/blob/dev/LICENSE
//
// ***************************************************************************
// ***************************************************************************

`timescale 1ns/100ps

module axi_ad9371_if #(

  parameter   DEVICE_TYPE = 0) (

  // receive

  input                   adc_clk,
  input       [ 3:0]      adc_rx_sof,
  input       [ 63:0]     adc_rx_data,
  input                   adc_os_clk,
  input       [ 3:0]      adc_rx_os_sof,
  input       [ 63:0]     adc_rx_os_data,

  output      [ 63:0]     adc_data,
  output                  adc_os_valid,
  output      [ 63:0]     adc_os_data,

  // transmit

  input                   dac_clk,
  output      [127:0]     dac_tx_data,

  input       [127:0]     dac_data);


  // internal signals

  wire    [ 63:0]   adc_rx_data_s;
  wire    [ 63:0]   adc_rx_os_data_s;

  // delineating

  assign adc_data[((8* 7)+7):(8* 7)] = adc_rx_data_s[((8* 6)+7):(8* 6)];
  assign adc_data[((8* 6)+7):(8* 6)] = adc_rx_data_s[((8* 7)+7):(8* 7)];
  assign adc_data[((8* 5)+7):(8* 5)] = adc_rx_data_s[((8* 4)+7):(8* 4)];
  assign adc_data[((8* 4)+7):(8* 4)] = adc_rx_data_s[((8* 5)+7):(8* 5)];
  assign adc_data[((8* 3)+7):(8* 3)] = adc_rx_data_s[((8* 2)+7):(8* 2)];
  assign adc_data[((8* 2)+7):(8* 2)] = adc_rx_data_s[((8* 3)+7):(8* 3)];
  assign adc_data[((8* 1)+7):(8* 1)] = adc_rx_data_s[((8* 0)+7):(8* 0)];
  assign adc_data[((8* 0)+7):(8* 0)] = adc_rx_data_s[((8* 1)+7):(8* 1)];

  assign adc_os_valid = 'd1;
  assign adc_os_data[((8* 7)+7):(8* 7)] = adc_rx_os_data_s[((8* 6)+7):(8* 6)];
  assign adc_os_data[((8* 6)+7):(8* 6)] = adc_rx_os_data_s[((8* 7)+7):(8* 7)];
  assign adc_os_data[((8* 5)+7):(8* 5)] = adc_rx_os_data_s[((8* 4)+7):(8* 4)];
  assign adc_os_data[((8* 4)+7):(8* 4)] = adc_rx_os_data_s[((8* 5)+7):(8* 5)];
  assign adc_os_data[((8* 3)+7):(8* 3)] = adc_rx_os_data_s[((8* 2)+7):(8* 2)];
  assign adc_os_data[((8* 2)+7):(8* 2)] = adc_rx_os_data_s[((8* 3)+7):(8* 3)];
  assign adc_os_data[((8* 1)+7):(8* 1)] = adc_rx_os_data_s[((8* 0)+7):(8* 0)];
  assign adc_os_data[((8* 0)+7):(8* 0)] = adc_rx_os_data_s[((8* 1)+7):(8* 1)];

  assign dac_tx_data[((8*15)+7):(8*15)] = (DEVICE_TYPE == 1) ? dac_data[((8*13)+7):(8*13)] : dac_data[((8*14)+7):(8*14)];
  assign dac_tx_data[((8*14)+7):(8*14)] = (DEVICE_TYPE == 1) ? dac_data[((8*12)+7):(8*12)] : dac_data[((8*15)+7):(8*15)];
  assign dac_tx_data[((8*13)+7):(8*13)] = (DEVICE_TYPE == 1) ? dac_data[((8*15)+7):(8*15)] : dac_data[((8*12)+7):(8*12)];
  assign dac_tx_data[((8*12)+7):(8*12)] = (DEVICE_TYPE == 1) ? dac_data[((8*14)+7):(8*14)] : dac_data[((8*13)+7):(8*13)];
  assign dac_tx_data[((8*11)+7):(8*11)] = (DEVICE_TYPE == 1) ? dac_data[((8* 9)+7):(8* 9)] : dac_data[((8*10)+7):(8*10)];
  assign dac_tx_data[((8*10)+7):(8*10)] = (DEVICE_TYPE == 1) ? dac_data[((8* 8)+7):(8* 8)] : dac_data[((8*11)+7):(8*11)];
  assign dac_tx_data[((8* 9)+7):(8* 9)] = (DEVICE_TYPE == 1) ? dac_data[((8*11)+7):(8*11)] : dac_data[((8* 8)+7):(8* 8)];
  assign dac_tx_data[((8* 8)+7):(8* 8)] = (DEVICE_TYPE == 1) ? dac_data[((8*10)+7):(8*10)] : dac_data[((8* 9)+7):(8* 9)];
  assign dac_tx_data[((8* 7)+7):(8* 7)] = (DEVICE_TYPE == 1) ? dac_data[((8* 5)+7):(8* 5)] : dac_data[((8* 6)+7):(8* 6)];
  assign dac_tx_data[((8* 6)+7):(8* 6)] = (DEVICE_TYPE == 1) ? dac_data[((8* 4)+7):(8* 4)] : dac_data[((8* 7)+7):(8* 7)];
  assign dac_tx_data[((8* 5)+7):(8* 5)] = (DEVICE_TYPE == 1) ? dac_data[((8* 7)+7):(8* 7)] : dac_data[((8* 4)+7):(8* 4)];
  assign dac_tx_data[((8* 4)+7):(8* 4)] = (DEVICE_TYPE == 1) ? dac_data[((8* 6)+7):(8* 6)] : dac_data[((8* 5)+7):(8* 5)];
  assign dac_tx_data[((8* 3)+7):(8* 3)] = (DEVICE_TYPE == 1) ? dac_data[((8* 1)+7):(8* 1)] : dac_data[((8* 2)+7):(8* 2)];
  assign dac_tx_data[((8* 2)+7):(8* 2)] = (DEVICE_TYPE == 1) ? dac_data[((8* 0)+7):(8* 0)] : dac_data[((8* 3)+7):(8* 3)];
  assign dac_tx_data[((8* 1)+7):(8* 1)] = (DEVICE_TYPE == 1) ? dac_data[((8* 3)+7):(8* 3)] : dac_data[((8* 0)+7):(8* 0)];
  assign dac_tx_data[((8* 0)+7):(8* 0)] = (DEVICE_TYPE == 1) ? dac_data[((8* 2)+7):(8* 2)] : dac_data[((8* 1)+7):(8* 1)];

  // instantiations

  genvar n;

  generate
  for (n = 0; n < 2; n = n + 1) begin: g_xcvr_if

  ad_xcvr_rx_if #(.DEVICE_TYPE (DEVICE_TYPE)) i_xcvr_rx_if (
    .rx_clk (adc_clk),
    .rx_ip_sof (adc_rx_sof),
    .rx_ip_data (adc_rx_data[((n*32)+31):(n*32)]),
    .rx_sof (),
    .rx_data (adc_rx_data_s[((n*32)+31):(n*32)]));

  ad_xcvr_rx_if #(.DEVICE_TYPE (DEVICE_TYPE)) i_xcvr_rx_os_if (
    .rx_clk (adc_os_clk),
    .rx_ip_sof (adc_rx_os_sof),
    .rx_ip_data (adc_rx_os_data[((n*32)+31):(n*32)]),
    .rx_sof (),
    .rx_data (adc_rx_os_data_s[((n*32)+31):(n*32)]));
  end
  endgenerate

endmodule

// ***************************************************************************
// ***************************************************************************