351 lines
12 KiB
Verilog
351 lines
12 KiB
Verilog
// ***************************************************************************
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// ***************************************************************************
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// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
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//
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// In this HDL repository, there are many different and unique modules, consisting
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// of various HDL (Verilog or VHDL) components. The individual modules are
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// developed independently, and may be accompanied by separate and unique license
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// terms.
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//
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// The user should read each of these license terms, and understand the
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// freedoms and responsibilities that he or she has by using this source/core.
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//
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// This core is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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// A PARTICULAR PURPOSE.
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//
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// Redistribution and use of source or resulting binaries, with or without modification
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// of this file, are permitted under one of the following two license terms:
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//
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// 1. The GNU General Public License version 2 as published by the
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// Free Software Foundation, which can be found in the top level directory
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// of this repository (LICENSE_GPL2), and also online at:
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// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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//
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// OR
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//
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// 2. An ADI specific BSD license, which can be found in the top level directory
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// of this repository (LICENSE_ADIBSD), and also on-line at:
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// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
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// This will allow to generate bit files and not release the source code,
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// as long as it attaches to an ADI device.
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//
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// ***************************************************************************
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// ***************************************************************************
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`timescale 1ns/100ps
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module up_hdmi_tx #(
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parameter 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_csc_bypass,
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output hdmi_ss_bypass,
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output [ 1:0] hdmi_srcsel,
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output [23:0] hdmi_const_rgb,
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output [15:0] hdmi_hl_active,
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output [15:0] hdmi_hl_width,
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output [15:0] hdmi_hs_width,
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output [15:0] hdmi_he_max,
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output [15:0] hdmi_he_min,
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output [15:0] hdmi_vf_active,
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output [15:0] hdmi_vf_width,
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output [15:0] hdmi_vs_width,
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output [15:0] hdmi_ve_max,
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output [15:0] hdmi_ve_min,
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output [23:0] hdmi_clip_max,
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output [23:0] hdmi_clip_min,
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input hdmi_status,
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input hdmi_tpm_oos,
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input [31:0] hdmi_clk_ratio,
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// vdma interface
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input vdma_clk,
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output vdma_rst,
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input vdma_ovf,
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input vdma_unf,
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input vdma_tpm_oos,
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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 reg up_wack,
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input up_rreq,
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input [13:0] up_raddr,
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output reg [31:0] up_rdata,
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output reg up_rack);
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localparam PCORE_VERSION = 32'h00040063;
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// internal registers
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reg up_core_preset;
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reg [31:0] up_scratch = 'd0;
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reg up_resetn = 'd0;
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reg up_csc_bypass = 'd0;
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reg up_ss_bypass = 'd0;
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reg [ 1:0] up_srcsel = 'd1;
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reg [23:0] up_const_rgb = 'd0;
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reg up_vdma_ovf = 'd0;
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reg up_vdma_unf = 'd0;
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reg up_hdmi_tpm_oos = 'd0;
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reg up_vdma_tpm_oos = 'd0;
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reg [15:0] up_hl_active = 'd0;
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reg [15:0] up_hl_width = 'd0;
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reg [15:0] up_hs_width = 'd0;
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reg [15:0] up_he_max = 'd0;
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reg [15:0] up_he_min = 'd0;
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reg [15:0] up_vf_active = 'd0;
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reg [15:0] up_vf_width = 'd0;
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reg [15:0] up_vs_width = 'd0;
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reg [15:0] up_ve_max = 'd0;
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reg [15:0] up_ve_min = 'd0;
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reg [23:0] up_clip_max;
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reg [23:0] up_clip_min;
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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_hdmi_status_s;
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wire up_hdmi_tpm_oos_s;
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wire [31:0] up_hdmi_clk_count_s;
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wire up_vdma_ovf_s;
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wire up_vdma_unf_s;
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wire up_vdma_tpm_oos_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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// 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_core_preset <= 1'd1;
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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_csc_bypass <= 'd0;
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up_ss_bypass <= 'd0;
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up_srcsel <= 'd1;
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up_const_rgb <= 'd0;
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up_vdma_ovf <= 'd0;
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up_vdma_unf <= 'd0;
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up_hdmi_tpm_oos <= 'd0;
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up_vdma_tpm_oos <= 'd0;
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up_hl_active <= 'd0;
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up_hl_width <= 'd0;
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up_hs_width <= 'd0;
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up_he_max <= 'd0;
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up_he_min <= 'd0;
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up_vf_active <= 'd0;
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up_vf_width <= 'd0;
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up_vs_width <= 'd0;
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up_ve_max <= 'd0;
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up_ve_min <= 'd0;
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up_clip_max <= 24'hf0ebf0;
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up_clip_min <= 24'h101010;
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end else begin
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up_core_preset <= ~up_resetn;
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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_ss_bypass <= up_wdata[2];
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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_srcsel <= up_wdata[1:0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h013)) begin
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up_const_rgb <= up_wdata[23:0];
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end
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if (up_vdma_ovf_s == 1'b1) begin
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up_vdma_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_vdma_ovf <= up_vdma_ovf & ~up_wdata[1];
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end
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if (up_vdma_unf_s == 1'b1) begin
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up_vdma_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_vdma_unf <= up_vdma_unf & ~up_wdata[0];
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end
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if (up_hdmi_tpm_oos_s == 1'b1) begin
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up_hdmi_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_hdmi_tpm_oos <= up_hdmi_tpm_oos & ~up_wdata[1];
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end
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if (up_vdma_tpm_oos_s == 1'b1) begin
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up_vdma_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_vdma_tpm_oos <= up_vdma_tpm_oos & ~up_wdata[0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h01a)) begin
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up_clip_max <= up_wdata[23:0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h01b)) begin
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up_clip_min <= up_wdata[23:0];
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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_hl_active <= up_wdata[31:16];
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up_hl_width <= up_wdata[15:0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h101)) begin
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up_hs_width <= up_wdata[15:0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h102)) begin
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up_he_max <= up_wdata[31:16];
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up_he_min <= up_wdata[15:0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h110)) begin
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up_vf_active <= up_wdata[31:16];
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up_vf_width <= up_wdata[15:0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h111)) begin
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up_vs_width <= up_wdata[15:0];
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end
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if ((up_wreq_s == 1'b1) && (up_waddr[11:0] == 12'h112)) begin
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up_ve_max <= up_wdata[31:16];
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up_ve_min <= 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 == 0) 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 <= ID;
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12'h002: up_rdata <= up_scratch;
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12'h010: up_rdata <= {31'd0, up_resetn};
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12'h011: up_rdata <= {29'd0, up_ss_bypass, 1'b0, up_csc_bypass};
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12'h012: up_rdata <= {30'd0, up_srcsel};
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12'h013: up_rdata <= {8'd0, up_const_rgb};
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12'h015: up_rdata <= up_hdmi_clk_count_s;
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12'h016: up_rdata <= hdmi_clk_ratio;
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12'h017: up_rdata <= {31'd0, up_hdmi_status_s};
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12'h018: up_rdata <= {30'd0, up_vdma_ovf, up_vdma_unf};
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12'h019: up_rdata <= {30'd0, up_hdmi_tpm_oos, up_vdma_tpm_oos};
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12'h01a: up_rdata <= {8'd0, up_clip_max};
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12'h01b: up_rdata <= {8'd0, up_clip_min};
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12'h100: up_rdata <= {up_hl_active, up_hl_width};
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12'h101: up_rdata <= {16'd0, up_hs_width};
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12'h102: up_rdata <= {up_he_max, up_he_min};
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12'h110: up_rdata <= {up_vf_active, up_vf_width};
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12'h111: up_rdata <= {16'd0, up_vs_width};
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12'h112: up_rdata <= {up_ve_max, up_ve_min};
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default: up_rdata <= 0;
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endcase
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end else begin
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up_rdata <= 32'd0;
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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_core_rst_reg (.rst_async(up_core_preset), .clk(hdmi_clk), .rstn(), .rst(hdmi_rst));
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ad_rst i_vdma_rst_reg (.rst_async(up_core_preset), .clk(vdma_clk), .rstn(), .rst(vdma_rst));
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// hdmi control & status
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up_xfer_cntrl #(.DATA_WIDTH(236)) i_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_ss_bypass,
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up_csc_bypass,
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up_srcsel,
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up_const_rgb,
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up_hl_active,
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up_hl_width,
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up_hs_width,
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up_he_max,
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up_he_min,
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up_vf_active,
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up_vf_width,
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up_vs_width,
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up_ve_max,
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up_ve_min,
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up_clip_max,
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up_clip_min}),
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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_ss_bypass,
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hdmi_csc_bypass,
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hdmi_srcsel,
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hdmi_const_rgb,
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hdmi_hl_active,
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hdmi_hl_width,
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hdmi_hs_width,
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hdmi_he_max,
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hdmi_he_min,
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hdmi_vf_active,
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hdmi_vf_width,
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hdmi_vs_width,
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hdmi_ve_max,
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hdmi_ve_min,
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hdmi_clip_max,
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hdmi_clip_min}));
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up_xfer_status #(.DATA_WIDTH(2)) i_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_hdmi_status_s,
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up_hdmi_tpm_oos_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_status,
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hdmi_tpm_oos}));
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// hdmi clock monitor
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up_clock_mon i_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_hdmi_clk_count_s),
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.d_rst (hdmi_rst),
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.d_clk (hdmi_clk));
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// vdma control & status
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up_xfer_status #(.DATA_WIDTH(3)) i_vdma_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_vdma_ovf_s,
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up_vdma_unf_s,
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up_vdma_tpm_oos_s}),
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.d_rst (vdma_rst),
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.d_clk (vdma_clk),
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.d_data_status ({ vdma_ovf,
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vdma_unf,
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vdma_tpm_oos}));
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endmodule
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// ***************************************************************************
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// ***************************************************************************
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