// ***************************************************************************
// ***************************************************************************
// Copyright 2013(c) Analog Devices, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
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//       of one or more patent holders.  This license does not release you
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//     - Use of the software either in source or binary form, must be run
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************

`timescale 1ns/100ps

module axi_ad9467(

  // physical interface

  adc_clk_in_p,
  adc_clk_in_n,
  adc_data_in_p,
  adc_data_in_n,
  adc_or_in_p,
  adc_or_in_n,

  // delay_clock

  delay_clk,

  // dma interface

  adc_clk,
  adc_valid,
  adc_enable,
  adc_data,
  adc_dovf,
  adc_dunf,

  // axi interface

  s_axi_aclk,
  s_axi_aresetn,
  s_axi_awvalid,
  s_axi_awaddr,
  s_axi_awready,
  s_axi_wvalid,
  s_axi_wdata,
  s_axi_wstrb,
  s_axi_wready,
  s_axi_bvalid,
  s_axi_bresp,
  s_axi_bready,
  s_axi_arvalid,
  s_axi_araddr,
  s_axi_arready,
  s_axi_rvalid,
  s_axi_rresp,
  s_axi_rdata,
  s_axi_rready);

  // parameters

  parameter PCORE_ID = 0;
  parameter PCORE_BUFTYPE = 0;
  parameter PCORE_IODELAY_GROUP = "dev_if_delay_group";
  parameter C_S_AXI_MIN_SIZE = 32'hffff;

  // physical interface

  input           adc_clk_in_p;
  input           adc_clk_in_n;
  input   [ 7:0]  adc_data_in_p;
  input   [ 7:0]  adc_data_in_n;
  input           adc_or_in_p;
  input           adc_or_in_n;

  // delay clk

  input           delay_clk;

  // dma interface

  output          adc_clk;
  output          adc_valid;
  output          adc_enable;
  output  [15:0]  adc_data;
  input           adc_dovf;
  input           adc_dunf;

  // axi interface

  input           s_axi_aclk;
  input           s_axi_aresetn;
  input           s_axi_awvalid;
  input   [31:0]  s_axi_awaddr;
  output          s_axi_awready;
  input           s_axi_wvalid;
  input   [31:0]  s_axi_wdata;
  input   [ 3:0]  s_axi_wstrb;
  output          s_axi_wready;
  output          s_axi_bvalid;
  output  [ 1:0]  s_axi_bresp;
  input           s_axi_bready;
  input           s_axi_arvalid;
  input   [31:0]  s_axi_araddr;
  output          s_axi_arready;
  output          s_axi_rvalid;
  output  [ 1:0]  s_axi_rresp;
  output  [31:0]  s_axi_rdata;
  input           s_axi_rready;

  // internal registers

  reg             up_wack = 'd0;
  reg     [31:0]  up_rdata = 'd0;
  reg             up_rack = 'd0;

  // internal clocks & resets

  wire            adc_rst;
  wire            up_clk;
  wire            up_rstn;
  wire            delay_rst;

  // internal signals

  wire    [15:0]  adc_data_s;
  wire            adc_or_s;
  wire            adc_ddr_edgesel_s;
  wire    [ 8:0]  up_dld_s;
  wire    [44:0]  up_dwdata_s;
  wire    [44:0]  up_drdata_s;
  wire            delay_locked_s;
  wire            up_status_pn_err_s;
  wire            up_status_pn_oos_s;
  wire            up_status_or_s;
  wire            up_rreq_s;
  wire    [13:0]  up_raddr_s;
  wire    [31:0]  up_rdata_s[0:2];
  wire            up_rack_s[0:2];
  wire            up_wack_s[0:2];
  wire            up_wreq_s;
  wire    [13:0]  up_waddr_s;
  wire    [31:0]  up_wdata_s;

  //defaults

  assign up_clk = s_axi_aclk;
  assign up_rstn = s_axi_aresetn;
  assign adc_valid = 1'b1;

  // processor read interface

  always @(negedge up_rstn or posedge up_clk) begin
    if (up_rstn == 0) begin
      up_rdata <= 32'd0;
      up_rack <= 1'd0;
      up_wack <= 1'd0;
    end else begin
      up_rdata <= up_rdata_s[0] | up_rdata_s[1] | up_rdata_s[2];
      up_rack <= up_rack_s[0] | up_rack_s[1] | up_rack_s[2];
      up_wack <= up_wack_s[0] | up_wack_s[1] | up_wack_s[2];
    end
  end

  // main (device interface)

  axi_ad9467_if #(
    .PCORE_BUFTYPE (PCORE_BUFTYPE),
    .PCORE_IODELAY_GROUP (PCORE_IODELAY_GROUP))
  i_if (
    .adc_clk_in_p (adc_clk_in_p),
    .adc_clk_in_n (adc_clk_in_n),
    .adc_data_in_p (adc_data_in_p),
    .adc_data_in_n (adc_data_in_n),
    .adc_or_in_p (adc_or_in_p),
    .adc_or_in_n (adc_or_in_n),
    .adc_clk (adc_clk),
    .adc_data (adc_data_s),
    .adc_or (adc_or_s),
    .adc_ddr_edgesel (adc_ddr_edgesel_s),
    .up_clk (up_clk),
    .up_dld (up_dld_s),
    .up_dwdata (up_dwdata_s),
    .up_drdata (up_drdata_s),
    .delay_clk (delay_clk),
    .delay_rst (delay_rst),
    .delay_locked (delay_locked_s));

  // channel

  axi_ad9467_channel #(.CHID(0)) i_channel (
    .adc_clk (adc_clk),
    .adc_rst (adc_rst),
    .adc_data (adc_data_s),
    .adc_or (adc_or_s),
    .adc_dfmt_data (adc_data),
    .adc_enable (adc_enable),
    .up_adc_pn_err (up_status_pn_err_s),
    .up_adc_pn_oos (up_status_pn_oos_s),
    .up_adc_or (up_status_or_s),
    .up_rstn (up_rstn),
    .up_clk (up_clk),
    .up_wreq (up_wreq_s),
    .up_waddr (up_waddr_s),
    .up_wdata (up_wdata_s),
    .up_wack (up_wack_s[0]),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata_s[0]),
    .up_rack (up_rack_s[0]));

  // adc delay control

  up_delay_cntrl #(.IO_WIDTH(9), .IO_BASEADDR(6'h02)) i_delay_cntrl (
    .delay_clk (delay_clk),
    .delay_rst (delay_rst),
    .delay_locked (delay_locked_s),
    .up_dld (up_dld_s),
    .up_dwdata (up_dwdata_s),
    .up_drdata (up_drdata_s),
    .up_rstn (up_rstn),
    .up_clk (up_clk),
    .up_wreq (up_wreq_s),
    .up_waddr (up_waddr_s),
    .up_wdata (up_wdata_s),
    .up_wack (up_wack_s[2]),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata_s[2]),
    .up_rack (up_rack_s[2]));

  // common processor control

  up_adc_common #(.PCORE_ID(PCORE_ID)) i_up_adc_common (
    .mmcm_rst (),
    .adc_clk (adc_clk),
    .adc_rst (adc_rst),
    .adc_r1_mode (),
    .adc_ddr_edgesel (adc_ddr_edgesel_s),
    .adc_pin_mode (),
    .adc_status (1'b1),
    .adc_sync_status (1'd0),
    .adc_status_ovf (adc_dovf),
    .adc_status_unf (adc_dunf),
    .adc_clk_ratio (32'b1),
    .adc_start_code (),
    .adc_sync (),
    .up_status_pn_err (up_status_pn_err_s),
    .up_status_pn_oos (up_status_pn_oos_s),
    .up_status_or (up_status_or_s),
    .drp_clk (1'b0),
    .drp_rst (),
    .drp_sel (),
    .drp_wr (),
    .drp_addr (),
    .drp_wdata (),
    .drp_rdata (16'b0),
    .drp_ready (1'b0),
    .drp_locked (1'b1),
    .up_usr_chanmax (),
    .adc_usr_chanmax (8'd1),
    .up_adc_gpio_in (32'd0),
    .up_adc_gpio_out (),
    .up_rstn (up_rstn),
    .up_clk (up_clk),
    .up_wreq (up_wreq_s),
    .up_waddr (up_waddr_s),
    .up_wdata (up_wdata_s),
    .up_wack (up_wack_s[1]),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata_s[1]),
    .up_rack (up_rack_s[1]));

  // up bus interface

  up_axi i_up_axi (
    .up_rstn (up_rstn),
    .up_clk (up_clk),
    .up_axi_awvalid (s_axi_awvalid),
    .up_axi_awaddr (s_axi_awaddr),
    .up_axi_awready (s_axi_awready),
    .up_axi_wvalid (s_axi_wvalid),
    .up_axi_wdata (s_axi_wdata),
    .up_axi_wstrb (s_axi_wstrb),
    .up_axi_wready (s_axi_wready),
    .up_axi_bvalid (s_axi_bvalid),
    .up_axi_bresp (s_axi_bresp),
    .up_axi_bready (s_axi_bready),
    .up_axi_arvalid (s_axi_arvalid),
    .up_axi_araddr (s_axi_araddr),
    .up_axi_arready (s_axi_arready),
    .up_axi_rvalid (s_axi_rvalid),
    .up_axi_rresp (s_axi_rresp),
    .up_axi_rdata (s_axi_rdata),
    .up_axi_rready (s_axi_rready),
    .up_wreq (up_wreq_s),
    .up_waddr (up_waddr_s),
    .up_wdata (up_wdata_s),
    .up_wack (up_wack),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata),
    .up_rack (up_rack));

endmodule

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