// ***************************************************************************
// ***************************************************************************
// Copyright 2011(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:
//     - Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     - Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in
//       the documentation and/or other materials provided with the
//       distribution.
//     - Neither the name of Analog Devices, Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//     - The use of this software may or may not infringe the patent rights
//       of one or more patent holders.  This license does not release you
//       from the requirement that you obtain separate licenses from these
//       patent holders to use this software.
//     - Use of the software either in source or binary form, must be run
//       on or directly connected to an Analog Devices Inc. component.
//    
// THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED.
//
// IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY
// RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 
// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************
// ***************************************************************************

module axi_hdmi_tx (

  // hdmi interface

  hdmi_clk,
  hdmi_out_clk,

  // 16-bit interface

  hdmi_16_hsync,
  hdmi_16_vsync,
  hdmi_16_data_e,
  hdmi_16_data,
  hdmi_16_es_data,

  // 24-bit interface

  hdmi_24_hsync,
  hdmi_24_vsync,
  hdmi_24_data_e,
  hdmi_24_data,

  // 36-bit interface

  hdmi_36_hsync,
  hdmi_36_vsync,
  hdmi_36_data_e,
  hdmi_36_data,

  // vdma interface

  m_axis_mm2s_clk,
  m_axis_mm2s_fsync,
  m_axis_mm2s_fsync_ret,
  m_axis_mm2s_tvalid,
  m_axis_mm2s_tdata,
  m_axis_mm2s_tkeep,
  m_axis_mm2s_tlast,
  m_axis_mm2s_tready,

  // 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_rdata,
  s_axi_rresp,
  s_axi_rready);

  // parameters

  parameter   ID = 0;
  parameter   CR_CB_N = 0;
  parameter   DEVICE_TYPE = 0;
  parameter   EMBEDDED_SYNC = 0;

  localparam  XILINX_7SERIES = 0;
  localparam  XILINX_ULTRASCALE = 1;
  localparam  ALTERA_5SERIES = 16;

  // hdmi interface

  input           hdmi_clk;
  output          hdmi_out_clk;

  // 16-bit interface

  output          hdmi_16_hsync;
  output          hdmi_16_vsync;
  output          hdmi_16_data_e;
  output  [15:0]  hdmi_16_data;
  output  [15:0]  hdmi_16_es_data;

  // 24-bit interface

  output          hdmi_24_hsync;
  output          hdmi_24_vsync;
  output          hdmi_24_data_e;
  output  [23:0]  hdmi_24_data;

  // 36-bit interface

  output          hdmi_36_hsync;
  output          hdmi_36_vsync;
  output          hdmi_36_data_e;
  output  [35:0]  hdmi_36_data;

  // vdma interface

  input           m_axis_mm2s_clk;
  output          m_axis_mm2s_fsync;
  input           m_axis_mm2s_fsync_ret;
  input           m_axis_mm2s_tvalid;
  input   [63:0]  m_axis_mm2s_tdata;
  input   [ 7:0]  m_axis_mm2s_tkeep;
  input           m_axis_mm2s_tlast;
  output          m_axis_mm2s_tready;

  // 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  [31:0]  s_axi_rdata;
  output  [ 1:0]  s_axi_rresp;
  input           s_axi_rready;

  // reset and clocks

  wire            up_rstn;
  wire            up_clk;
  wire            hdmi_rst;
  wire            vdma_clk;
  wire            vdma_rst;

  // internal signals

  wire            up_wreq_s;
  wire    [13:0]  up_waddr_s;
  wire    [31:0]  up_wdata_s;
  wire            up_wack_s;
  wire            up_rreq_s;
  wire    [13:0]  up_raddr_s;
  wire    [31:0]  up_rdata_s;
  wire            up_rack_s;
  wire            hdmi_full_range_s;
  wire            hdmi_csc_bypass_s;
  wire            hdmi_ss_bypass_s;
  wire    [ 1:0]  hdmi_srcsel_s;
  wire    [23:0]  hdmi_const_rgb_s;
  wire    [15:0]  hdmi_hl_active_s;
  wire    [15:0]  hdmi_hl_width_s;
  wire    [15:0]  hdmi_hs_width_s;
  wire    [15:0]  hdmi_he_max_s;
  wire    [15:0]  hdmi_he_min_s;
  wire    [15:0]  hdmi_vf_active_s;
  wire    [15:0]  hdmi_vf_width_s;
  wire    [15:0]  hdmi_vs_width_s;
  wire    [15:0]  hdmi_ve_max_s;
  wire    [15:0]  hdmi_ve_min_s;
  wire            hdmi_fs_toggle_s;
  wire    [ 8:0]  hdmi_raddr_g_s;
  wire            hdmi_tpm_oos_s;
  wire            hdmi_status_s;
  wire            vdma_fs_s;
  wire            vdma_fs_ret_s;
  wire            vdma_valid_s;
  wire    [63:0]  vdma_data_s;
  wire            vdma_ready_s;
  wire            vdma_wr_s;
  wire    [ 8:0]  vdma_waddr_s;
  wire    [47:0]  vdma_wdata_s;
  wire            vdma_fs_ret_toggle_s;
  wire    [ 8:0]  vdma_fs_waddr_s;
  wire            vdma_ovf_s;
  wire            vdma_unf_s;
  wire            vdma_tpm_oos_s;

  // signal name changes

  assign up_rstn = s_axi_aresetn;
  assign up_clk = s_axi_aclk;
  assign vdma_clk = m_axis_mm2s_clk;
  assign vdma_valid_s = m_axis_mm2s_tvalid;
  assign vdma_data_s = m_axis_mm2s_tdata;
  assign vdma_fs_ret_s = m_axis_mm2s_fsync_ret;
  assign m_axis_mm2s_fsync = vdma_fs_s;
  assign m_axis_mm2s_tready = vdma_ready_s;

  // axi 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_s),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata_s),
    .up_rack (up_rack_s));

  // processor interface

  up_hdmi_tx i_up (
    .hdmi_clk (hdmi_clk),
    .hdmi_rst (hdmi_rst),
    .hdmi_full_range (hdmi_full_range_s),
    .hdmi_csc_bypass (hdmi_csc_bypass_s),
    .hdmi_ss_bypass (hdmi_ss_bypass_s),
    .hdmi_srcsel (hdmi_srcsel_s),
    .hdmi_const_rgb (hdmi_const_rgb_s),
    .hdmi_hl_active (hdmi_hl_active_s),
    .hdmi_hl_width (hdmi_hl_width_s),
    .hdmi_hs_width (hdmi_hs_width_s),
    .hdmi_he_max (hdmi_he_max_s),
    .hdmi_he_min (hdmi_he_min_s),
    .hdmi_vf_active (hdmi_vf_active_s),
    .hdmi_vf_width (hdmi_vf_width_s),
    .hdmi_vs_width (hdmi_vs_width_s),
    .hdmi_ve_max (hdmi_ve_max_s),
    .hdmi_ve_min (hdmi_ve_min_s),
    .hdmi_status (hdmi_status_s),
    .hdmi_tpm_oos (hdmi_tpm_oos_s),
    .hdmi_clk_ratio (32'd1),
    .vdma_clk (vdma_clk),
    .vdma_rst (vdma_rst),
    .vdma_ovf (vdma_ovf_s),
    .vdma_unf (vdma_unf_s),
    .vdma_tpm_oos (vdma_tpm_oos_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),
    .up_rreq (up_rreq_s),
    .up_raddr (up_raddr_s),
    .up_rdata (up_rdata_s),
    .up_rack (up_rack_s));

  // vdma interface

  axi_hdmi_tx_vdma i_vdma (
    .hdmi_fs_toggle (hdmi_fs_toggle_s),
    .hdmi_raddr_g (hdmi_raddr_g_s),
    .vdma_clk (vdma_clk),
    .vdma_rst (vdma_rst),
    .vdma_fs (vdma_fs_s),
    .vdma_fs_ret (vdma_fs_ret_s),
    .vdma_valid (vdma_valid_s),
    .vdma_data (vdma_data_s),
    .vdma_ready (vdma_ready_s),
    .vdma_wr (vdma_wr_s),
    .vdma_waddr (vdma_waddr_s),
    .vdma_wdata (vdma_wdata_s),
    .vdma_fs_ret_toggle (vdma_fs_ret_toggle_s),
    .vdma_fs_waddr (vdma_fs_waddr_s),
    .vdma_tpm_oos (vdma_tpm_oos_s),
    .vdma_ovf (vdma_ovf_s),
    .vdma_unf (vdma_unf_s));

  // hdmi interface

  axi_hdmi_tx_core #(
    .CR_CB_N(CR_CB_N),
    .EMBEDDED_SYNC(EMBEDDED_SYNC))
  i_tx_core (
    .hdmi_clk (hdmi_clk),
    .hdmi_rst (hdmi_rst),
    .hdmi_16_hsync (hdmi_16_hsync),
    .hdmi_16_vsync (hdmi_16_vsync),
    .hdmi_16_data_e (hdmi_16_data_e),
    .hdmi_16_data (hdmi_16_data),
    .hdmi_16_es_data (hdmi_16_es_data),
    .hdmi_24_hsync (hdmi_24_hsync),
    .hdmi_24_vsync (hdmi_24_vsync),
    .hdmi_24_data_e (hdmi_24_data_e),
    .hdmi_24_data (hdmi_24_data),
    .hdmi_36_hsync (hdmi_36_hsync),
    .hdmi_36_vsync (hdmi_36_vsync),
    .hdmi_36_data_e (hdmi_36_data_e),
    .hdmi_36_data (hdmi_36_data),
    .hdmi_fs_toggle (hdmi_fs_toggle_s),
    .hdmi_raddr_g (hdmi_raddr_g_s),
    .hdmi_tpm_oos (hdmi_tpm_oos_s),
    .hdmi_status (hdmi_status_s),
    .vdma_clk (vdma_clk),
    .vdma_wr (vdma_wr_s),
    .vdma_waddr (vdma_waddr_s),
    .vdma_wdata (vdma_wdata_s),
    .vdma_fs_ret_toggle (vdma_fs_ret_toggle_s),
    .vdma_fs_waddr (vdma_fs_waddr_s),
    .hdmi_full_range (hdmi_full_range_s),
    .hdmi_csc_bypass (hdmi_csc_bypass_s),
    .hdmi_ss_bypass (hdmi_ss_bypass_s),
    .hdmi_srcsel (hdmi_srcsel_s),
    .hdmi_const_rgb (hdmi_const_rgb_s),
    .hdmi_hl_active (hdmi_hl_active_s),
    .hdmi_hl_width (hdmi_hl_width_s),
    .hdmi_hs_width (hdmi_hs_width_s),
    .hdmi_he_max (hdmi_he_max_s),
    .hdmi_he_min (hdmi_he_min_s),
    .hdmi_vf_active (hdmi_vf_active_s),
    .hdmi_vf_width (hdmi_vf_width_s),
    .hdmi_vs_width (hdmi_vs_width_s),
    .hdmi_ve_max (hdmi_ve_max_s),
    .hdmi_ve_min (hdmi_ve_min_s));

  // hdmi output clock

  generate
  if (DEVICE_TYPE == XILINX_ULTRASCALE) begin
  ODDRE1 #(.SRVAL(1'b0)) i_clk_oddr (
    .SR (1'b0),
    .D1 (1'b1),
    .D2 (1'b0),
    .C (hdmi_clk),
    .Q (hdmi_out_clk));
  end
  if (DEVICE_TYPE == ALTERA_5SERIES) begin
  altddio_out #(.WIDTH(1)) i_clk_oddr (
    .aclr (1'b0),
    .aset (1'b0),
    .sclr (1'b0),
    .sset (1'b0),
    .oe (1'b1),
    .outclocken (1'b1),
    .datain_h (1'b1),
    .datain_l (1'b0),
    .outclock (hdmi_clk),
    .oe_out (),
    .dataout (hdmi_out_clk));
  end
  if (DEVICE_TYPE == XILINX_7SERIES) begin
  ODDR #(.INIT(1'b0)) i_clk_oddr (
    .R (1'b0),
    .S (1'b0),
    .CE (1'b1),
    .D1 (1'b1),
    .D2 (1'b0),
    .C (hdmi_clk),
    .Q (hdmi_out_clk));
  end
  endgenerate

endmodule

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