333 lines
11 KiB
Verilog
333 lines
11 KiB
Verilog
// ***************************************************************************
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// ***************************************************************************
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// Copyright 2011(c) Analog Devices, Inc.
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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// - Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// - Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in
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// the documentation and/or other materials provided with the
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// distribution.
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// - Neither the name of Analog Devices, Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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// - The use of this software may or may not infringe the patent rights
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// of one or more patent holders. This license does not release you
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// from the requirement that you obtain separate licenses from these
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// patent holders to use this software.
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// - Use of the software either in source or binary form, must be run
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// on or directly connected to an Analog Devices Inc. component.
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//
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// THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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// INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A
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// PARTICULAR PURPOSE ARE DISCLAIMED.
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//
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// IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, INTELLECTUAL PROPERTY
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// RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; Loos OF USE, DATA, OR PROFITS; OR
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// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE PoosIBILITY OF SUCH DAMAGE.
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// ***************************************************************************
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// ***************************************************************************
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module up_hdmi_rx (
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// hdmi interface
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hdmi_clk,
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hdmi_rst,
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hdmi_edge_sel,
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hdmi_bgr,
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hdmi_packed,
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hdmi_csc_bypass,
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hdmi_tpg_enable,
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hdmi_vs_count,
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hdmi_hs_count,
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hdmi_dma_ovf,
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hdmi_dma_unf,
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hdmi_tpm_oos,
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hdmi_vs_oos,
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hdmi_hs_oos,
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hdmi_vs_mismatch,
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hdmi_hs_mismatch,
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hdmi_vs,
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hdmi_hs,
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hdmi_clk_ratio,
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// bus interface
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up_rstn,
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up_clk,
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up_wreq,
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up_waddr,
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up_wdata,
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up_wack,
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up_rreq,
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up_raddr,
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up_rdata,
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up_rack);
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// parameters
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localparam PCORE_VERSION = 32'h00040063;
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parameter PCORE_ID = 0;
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// hdmi interface
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input hdmi_clk;
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output hdmi_rst;
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output hdmi_edge_sel;
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output hdmi_bgr;
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output hdmi_packed;
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output hdmi_csc_bypass;
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output hdmi_tpg_enable;
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output [15:0] hdmi_vs_count;
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output [15:0] hdmi_hs_count;
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input hdmi_dma_ovf;
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input hdmi_dma_unf;
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input hdmi_tpm_oos;
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input hdmi_vs_oos;
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input hdmi_hs_oos;
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input hdmi_vs_mismatch;
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input hdmi_hs_mismatch;
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input [15:0] hdmi_vs;
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input [15:0] hdmi_hs;
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input [31:0] hdmi_clk_ratio;
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// bus interface
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input up_rstn;
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input up_clk;
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input up_wreq;
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input [13:0] up_waddr;
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input [31:0] up_wdata;
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output up_wack;
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input up_rreq;
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input [13:0] up_raddr;
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output [31:0] up_rdata;
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output up_rack;
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// internal registers
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reg up_wack = 'd0;
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reg [31:0] up_scratch = 'd0;
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reg up_resetn = 'd0;
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reg up_edge_sel = 'd0;
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reg up_bgr = 'd0;
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reg up_packed = 'd0;
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reg up_csc_bypass = 'd0;
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reg up_tpg_enable = 'd0;
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reg up_dma_ovf = 'd0;
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reg up_dma_unf = 'd0;
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reg up_tpm_oos = 'd0;
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reg up_vs_oos = 'd0;
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reg up_hs_oos = 'd0;
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reg up_vs_mismatch = 'd0;
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reg up_hs_mismatch = 'd0;
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reg [15:0] up_vs_count = 'd0;
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reg [15:0] up_hs_count = 'd0;
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reg up_rack = 'd0;
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reg [31:0] up_rdata = 'd0;
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// internal signals
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wire up_wreq_s;
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wire up_rreq_s;
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wire up_preset_s;
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wire up_dma_ovf_s;
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wire up_dma_unf_s;
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wire up_vs_oos_s;
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wire up_hs_oos_s;
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wire up_vs_mismatch_s;
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wire up_hs_mismatch_s;
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wire [15:0] up_vs_s;
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wire [15:0] up_hs_s;
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wire [31:0] up_clk_count_s;
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// decode block select
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assign up_wreq_s = (up_waddr[13:12] == 2'd0) ? up_wreq : 1'b0;
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assign up_rreq_s = (up_raddr[13:12] == 2'd0) ? up_rreq : 1'b0;
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assign up_preset_s = ~up_resetn;
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// processor write interface
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always @(negedge up_rstn or posedge up_clk) begin
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if (up_rstn == 0) begin
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up_wack <= 'd0;
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up_scratch <= 'd0;
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up_resetn <= 'd0;
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up_edge_sel <= 'd0;
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up_bgr <= 'd0;
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up_packed <= 'd0;
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up_csc_bypass <= 'd0;
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up_tpg_enable <= 'd0;
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up_dma_ovf <= 'd0;
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up_dma_unf <= 'd0;
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up_tpm_oos <= 'd0;
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up_vs_oos <= 'd0;
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up_hs_oos <= 'd0;
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up_vs_mismatch <= 'd0;
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up_hs_mismatch <= 'd0;
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up_vs_count <= 'd0;
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up_hs_count <= 'd0;
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end else begin
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up_wack <= up_wreq_s;
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h002)) begin
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up_scratch <= up_wdata;
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h010)) begin
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up_resetn <= up_wdata[0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h011)) begin
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up_edge_sel <= up_wdata[3];
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up_bgr <= up_wdata[2];
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up_packed <= up_wdata[1];
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up_csc_bypass <= up_wdata[0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h012)) begin
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up_tpg_enable <= up_wdata[0];
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end
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if (up_dma_ovf_s == 1'b1) begin
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up_dma_ovf <= 1'b1;
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end else if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h018)) begin
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up_dma_ovf <= up_dma_ovf & ~up_wdata[1];
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end
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if (up_dma_unf_s == 1'b1) begin
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up_dma_unf <= 1'b1;
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end else if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h018)) begin
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up_dma_unf <= up_dma_unf & ~up_wdata[0];
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end
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if (up_tpm_oos_s == 1'b1) begin
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up_tpm_oos <= 1'b1;
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end else if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h019)) begin
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up_tpm_oos <= up_tpm_oos & ~up_wdata[1];
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end
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if (up_vs_oos_s == 1'b1) begin
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up_vs_oos <= 1'b1;
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end else if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h020)) begin
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up_vs_oos <= up_vs_oos & ~up_wdata[3];
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end
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if (up_hs_oos_s == 1'b1) begin
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up_hs_oos <= 1'b1;
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end else if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h020)) begin
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up_hs_oos <= up_hs_oos & ~up_wdata[2];
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end
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if (up_vs_mismatch_s == 1'b1) begin
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up_vs_mismatch <= 1'b1;
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end else if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h020)) begin
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up_vs_mismatch <= up_vs_mismatch & ~up_wdata[1];
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end
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if (up_hs_mismatch_s == 1'b1) begin
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up_hs_mismatch <= 1'b1;
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end else if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h020)) begin
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up_hs_mismatch <= up_hs_mismatch & ~up_wdata[0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h100)) begin
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up_vs_count <= up_wdata[31:16];
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up_hs_count <= up_wdata[15:0];
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end
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end
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end
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// processor read interface
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always @(negedge up_rstn or posedge up_clk) begin
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if (up_rstn == 1'b0) begin
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up_rack <= 'd0;
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up_rdata <= 'd0;
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end else begin
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up_rack <= up_rreq_s;
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if(up_rreq_s == 1'b1) begin
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case (up_raddr[11:0])
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12'h000: up_rdata <= PCORE_VERSION;
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12'h001: up_rdata <= PCORE_ID;
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12'h002: up_rdata <= up_scratch;
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12'h010: up_rdata <= {31'h0, up_resetn};
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12'h011: up_rdata <= {28'h0, up_edge_sel, up_bgr, up_packed, up_csc_bypass};
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12'h012: up_rdata <= {31'h0, up_tpg_enable};
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12'h015: up_rdata <= up_clk_count_s;
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12'h016: up_rdata <= hdmi_clk_ratio;
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12'h018: up_rdata <= {30'h0, up_dma_ovf, up_dma_unf};
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12'h019: up_rdata <= {30'h0, up_tpm_oos, 1'b0};
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12'h020: up_rdata <= {28'h0, up_vs_oos, up_hs_oos,
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up_vs_mismatch, up_hs_mismatch};
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12'h100: up_rdata <= {up_vs_count, up_hs_count};
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12'h101: up_rdata <= {up_vs_s, up_hs_s};
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default: up_rdata <= 0;
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endcase
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end
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end
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end
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// resets
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ad_rst i_hdmi_rst_reg (
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.preset (up_preset_s),
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.clk (hdmi_clk),
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.rst (hdmi_rst));
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// hdmi control & status
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up_xfer_cntrl #(.DATA_WIDTH(37)) i_hdmi_xfer_cntrl (
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.up_rstn (up_rstn),
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.up_clk (up_clk),
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.up_data_cntrl ({ up_edge_sel,
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up_bgr,
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up_packed,
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up_csc_bypass,
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up_tpg_enable,
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up_vs_count,
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up_hs_count}),
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.up_xfer_done (),
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.d_rst (hdmi_rst),
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.d_clk (hdmi_clk),
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.d_data_cntrl ({ hdmi_edge_sel,
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hdmi_bgr,
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hdmi_packed,
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hdmi_csc_bypass,
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hdmi_tpg_enable,
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hdmi_vs_count,
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hdmi_hs_count}));
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up_xfer_status #(.DATA_WIDTH(39)) i_hdmi_xfer_status (
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.up_rstn (up_rstn),
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.up_clk (up_clk),
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.up_data_status ({ up_dma_ovf_s,
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up_dma_unf_s,
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up_tpm_oos_s,
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up_vs_oos_s,
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up_hs_oos_s,
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up_vs_mismatch_s,
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up_hs_mismatch_s,
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up_vs_s,
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up_hs_s}),
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.d_rst (hdmi_rst),
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.d_clk (hdmi_clk),
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.d_data_status ({ hdmi_dma_ovf,
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hdmi_dma_unf,
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hdmi_tpm_oos,
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hdmi_vs_oos,
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hdmi_hs_oos,
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hdmi_vs_mismatch,
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hdmi_hs_mismatch,
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hdmi_vs,
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hdmi_hs}));
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up_clock_mon i_hdmi_clock_mon (
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.up_rstn (up_rstn),
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.up_clk (up_clk),
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.up_d_count (up_clk_count_s),
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.d_rst (hdmi_rst),
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.d_clk (hdmi_clk));
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endmodule
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// ***************************************************************************
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// ***************************************************************************
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