URL
https://opencores.org/ocsvn/wf3d/wf3d/trunk
Subversion Repositories wf3d
[/] [wf3d/] [trunk/] [implement/] [rtl/] [axi_cmn/] [fm_asys.v] - Rev 8
Go to most recent revision | Compare with Previous | Blame | View Log
//======================================================================= // Project Monophony // Wire-Frame 3D Graphics Accelerator IP Core // // File: // fm_asys.v // // Abstract: // System control module // // Author: // Kenji Ishimaru (info.wf3d@gmail.com) // //====================================================================== // // Copyright (c) 2016, Kenji Ishimaru // 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. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, // THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, // 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. // // Revision History `include "polyphony_def.v" module fm_asys ( clk_core, rst_x, // internal interface i_req, i_wr, i_adrs, o_ack, i_be, i_wd, o_rstr, o_rd, // configuration output // Video controller o_video_start, o_aa_en, o_fb0_offset, o_fb0_ms_offset, o_fb1_offset, o_fb1_ms_offset, o_color_mode, o_front_buffer, o_fb_blend_en, // status from Video controller i_vint_x, i_vint_edge, // status from 3D core i_vtx_int, // int out to sh4 o_int_x, // DMA o_dma_start, o_dma_mode, i_dma_end, o_dma_top_address0, o_dma_top_address1, o_dma_top_address2, o_dma_top_address3, o_dma_length, o_dma_be, o_dma_wd0, o_dma_wd1, // AXI Configuration o_conf_arcache_m, o_conf_aruser_m, o_conf_awcache_m, o_conf_awuser_m ); ////////////////////////////////// // I/O port definition ////////////////////////////////// input clk_core; input rst_x; // internal interface input i_req; input i_wr; input [21:0] i_adrs; output o_ack; input [3:0] i_be; input [31:0] i_wd; output o_rstr; output [31:0] o_rd; // configuration output // Video controller output [1:0] o_video_start; output [2:0] o_aa_en; output [11:0] o_fb0_offset; output [11:0] o_fb0_ms_offset; output [11:0] o_fb1_offset; output [11:0] o_fb1_ms_offset; output [1:0] o_color_mode; output o_front_buffer; output o_fb_blend_en; // status from Video controller input i_vint_x; input i_vint_edge; // status from 3D core input i_vtx_int; // int out to sh4 output o_int_x; // DMA output o_dma_start; output [3:0] o_dma_mode; input i_dma_end; output [19:0] o_dma_top_address0; output [19:0] o_dma_top_address1; output [19:0] o_dma_top_address2; output [19:0] o_dma_top_address3; output [17:0] o_dma_length; output [3:0] o_dma_be; output [31:0] o_dma_wd0; output [31:0] o_dma_wd1; // AXI Configuration output [3:0] o_conf_arcache_m; output [4:0] o_conf_aruser_m; output [3:0] o_conf_awcache_m; output [4:0] o_conf_awuser_m; ////////////////////////////////// // regs ////////////////////////////////// reg [1:0] r_video_start; reg [2:0] r_aa_en; reg [11:0] r_fb0_offset; reg [11:0] r_fb0_ms_offset; reg [11:0] r_fb1_offset; reg [11:0] r_fb1_ms_offset; reg [1:0] r_color_mode; reg r_fb_blend_en; reg r_rstr; reg [31:0] r_rd; reg r_vint_x; reg [2:0] r_mask; reg r_front_buffer; reg r_dma_start; reg [3:0] r_dma_mode; reg r_dma_int; reg [19:0] r_dma_top_address0; reg [19:0] r_dma_top_address1; reg [19:0] r_dma_top_address2; reg [19:0] r_dma_top_address3; reg [17:0] r_dma_length; reg [3:0] r_dma_be; reg [31:0] r_dma_wd0; reg [31:0] r_dma_wd1; reg r_vint_clear; reg [3:0] r_conf_arcache_m; reg [4:0] r_conf_aruser_m; reg [3:0] r_conf_awcache_m; reg [4:0] r_conf_awuser_m; ////////////////////////////////// // wire ////////////////////////////////// wire w_hit0; wire w_hit1; wire w_hit2; wire w_hit3; wire w_hit4; wire w_hit5; wire w_hit6; wire w_hit8; wire w_hit9; wire w_hitA; wire w_hitB; wire w_hitC; wire w_hitD; wire w_hitE; wire w_hitF; wire w_hit10; wire w_hit11; wire w_hit12; wire w_hit13; wire w_hit14; wire w_hit15; wire w_hit16; wire w_hit0_w; wire w_hit1_w; wire w_hit2_w; wire w_hit3_w; wire w_hit4_w; wire w_hit5_w; wire w_hit6_w; wire w_hit9_w; wire w_hitA_w; wire w_hitB_w; wire w_hitC_w; wire w_hitD_w; wire w_hitE_w; wire w_hitF_w; wire w_hit10_w; wire w_hit11_w; wire w_hit12_w; wire w_hit13_w; wire [31:0] w_rd; wire w_rstr; wire w_vint_x; wire w_vint_on; wire [2:0] w_int; ////////////////////////////////// // assign ////////////////////////////////// assign w_hit0 = (i_adrs[7:2] == 6'h00); // 0 assign w_hit1 = (i_adrs[7:2] == 6'h01); // 4 assign w_hit2 = (i_adrs[7:2] == 6'h02); // 8 assign w_hit3 = (i_adrs[7:2] == 6'h03); // c assign w_hit4 = (i_adrs[7:2] == 6'h04); // 10 assign w_hit5 = (i_adrs[7:2] == 6'h05); // 14 assign w_hit6 = (i_adrs[7:2] == 6'h06); // 18 assign w_hit8 = (i_adrs[7:2] == 6'h08); // 20 assign w_hit9 = (i_adrs[7:2] == 6'h09); // 24 assign w_hitA = (i_adrs[7:2] == 6'h0a); // 28 assign w_hitB = (i_adrs[7:2] == 6'h0b); // 2c assign w_hitC = (i_adrs[7:2] == 6'h0c); // 30 assign w_hitD = (i_adrs[7:2] == 6'h0d); // 34 assign w_hitE = (i_adrs[7:2] == 6'h0e); // 38 assign w_hitF = (i_adrs[7:2] == 6'h0f); // 3c assign w_hit10 = (i_adrs[7:2] == 6'h10); // 40 assign w_hit11 = (i_adrs[7:2] == 6'h11); // 44 assign w_hit12 = (i_adrs[7:2] == 6'h12); // 48 assign w_hit13 = (i_adrs[7:2] == 6'h13); // 4c assign w_hit14 = (i_adrs[7:2] == 6'h14); // 50 assign w_hit15 = (i_adrs[7:2] == 6'h15); // 54 assign w_hit0_w = w_hit0 & i_wr & i_req; assign w_hit1_w = w_hit1 & i_wr & i_req; assign w_hit2_w = w_hit2 & i_wr & i_req; assign w_hit3_w = w_hit3 & i_wr & i_req; assign w_hit4_w = w_hit4 & i_wr & i_req; assign w_hit5_w = w_hit5 & i_wr & i_req; assign w_hit6_w = w_hit6 & i_wr & i_req; assign w_hit9_w = w_hit9 & i_wr & i_req; assign w_hitA_w = w_hitA & i_wr & i_req; assign w_hitB_w = w_hitB & i_wr & i_req; assign w_hitC_w = w_hitC & i_wr & i_req; assign w_hitD_w = w_hitD & i_wr & i_req; assign w_hitE_w = w_hitE & i_wr & i_req; assign w_hitF_w = w_hitF & i_wr & i_req; assign w_hit10_w = w_hit10 & i_wr & i_req; assign w_hit11_w = w_hit11 & i_wr & i_req; assign w_hit12_w = w_hit12 & i_wr & i_req; assign w_hit13_w = w_hit13 & i_wr & i_req; assign w_rstr = i_req & !i_wr; assign w_rd = (w_hit0) ? {15'b0,r_fb_blend_en,5'b0,r_aa_en,6'b0,r_video_start} : (w_hit1) ? {r_fb0_offset,20'b0} : (w_hit2) ? {r_fb1_offset,20'b0} : (w_hit3) ? {r_fb0_ms_offset,20'b0} : (w_hit4) ? {r_fb1_ms_offset,20'b0} : (w_hit5) ? {30'b0,r_color_mode} : (w_hit6) ? { 3'b0, r_conf_awuser_m, 4'b0, r_conf_awcache_m, 3'b0, r_conf_aruser_m, 4'b0, r_conf_arcache_m } : (w_hit8) ? {29'b0,i_vtx_int,r_dma_int,!r_vint_x} : (w_hit9) ? {31'b0,r_vint_clear} : (w_hitA) ? {29'b0,r_mask} : (w_hitB) ? {31'b0,r_front_buffer} : (w_hitC) ? {r_dma_top_address0,12'b0} : (w_hitD) ? {r_dma_top_address1,12'b0} : (w_hitE) ? {r_dma_top_address2,12'b0} : (w_hitF) ? {r_dma_top_address3,12'b0} : (w_hit10) ? {4'b0,r_dma_be,6'b0,r_dma_length} : (w_hit11) ? r_dma_wd0 : (w_hit12) ? r_dma_wd1 : (w_hit14) ? 32'h50475055 : // PGPU (w_hit15) ? 32'h76415849 : // vAXI {23'b0,r_dma_int, r_dma_mode,3'b0,r_dma_start}; // w_hit13 assign w_vint_on = i_vint_edge; // falling edge detect assign w_vint_x = ~r_vint_clear | i_vint_x; assign w_int[0] = (r_mask[0]) ? 1'b0 : ~r_vint_x; assign w_int[1] = (r_mask[1]) ? 1'b0 : r_dma_int; assign w_int[2] = (r_mask[2]) ? 1'b0 : i_vtx_int; assign o_int_x = !(|w_int); assign o_rstr = r_rstr; assign o_rd = r_rd; assign o_ack = i_req; assign o_video_start = r_video_start; assign o_aa_en = r_aa_en; assign o_fb0_offset = r_fb0_offset; assign o_fb0_ms_offset = r_fb0_ms_offset; assign o_fb1_offset = r_fb1_offset; assign o_fb1_ms_offset = r_fb1_ms_offset; assign o_color_mode = r_color_mode; assign o_front_buffer = r_front_buffer; assign o_fb_blend_en = r_fb_blend_en; assign o_dma_start = r_dma_start; assign o_dma_mode = r_dma_mode; assign o_dma_top_address0 = r_dma_top_address0; assign o_dma_top_address1 = r_dma_top_address1; assign o_dma_top_address2 = r_dma_top_address2; assign o_dma_top_address3 = r_dma_top_address3; assign o_dma_length = r_dma_length; assign o_dma_be = r_dma_be; assign o_dma_wd0 = r_dma_wd0; assign o_dma_wd1 = r_dma_wd1; assign o_conf_arcache_m = r_conf_arcache_m; assign o_conf_aruser_m = r_conf_aruser_m; assign o_conf_awcache_m = r_conf_awcache_m; assign o_conf_awuser_m = r_conf_awuser_m; ////////////////////////////////// // always ////////////////////////////////// always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_video_start <= 2'b0; end else begin if (w_hit0_w) begin if (i_be[0]) r_video_start <= i_wd[1:0]; if (i_be[1]) r_aa_en <= i_wd[10:8]; if (i_be[2]) r_fb_blend_en <= i_wd[16]; end end end // register holds 32-bit address always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_fb0_offset <= 12'b0; r_fb0_ms_offset <= 12'b0; end else begin if (w_hit1_w) begin if (i_be[2]) r_fb0_offset[3:0] <= i_wd[23:20]; if (i_be[3]) r_fb0_offset[11:4] <= i_wd[31:24]; end if (w_hit3_w) begin if (i_be[2]) r_fb0_ms_offset[3:0] <= i_wd[23:20]; if (i_be[3]) r_fb0_ms_offset[11:4] <= i_wd[31:24]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_fb1_offset <= 12'b0; r_fb1_ms_offset <= 12'b0; end else begin if (w_hit2_w) begin if (i_be[2]) r_fb1_offset[3:0] <= i_wd[23:20]; if (i_be[3]) r_fb1_offset[11:4] <= i_wd[31:24]; end if (w_hit4_w) begin if (i_be[2]) r_fb1_ms_offset[3:0] <= i_wd[23:20]; if (i_be[3]) r_fb1_ms_offset[11:4] <= i_wd[31:24]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_color_mode <= 2'b0; end else begin if (w_hit5_w) begin if (i_be[0]) r_color_mode <= i_wd[1:0]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_conf_arcache_m <= 4'h0; r_conf_aruser_m <= 5'h0; r_conf_awcache_m <= 4'h0; r_conf_awuser_m <= 5'h0; end else begin if (w_hit6_w) begin if (i_be[0]) r_conf_arcache_m <= i_wd[3:0]; if (i_be[1]) r_conf_aruser_m <= i_wd[12:8]; if (i_be[2]) r_conf_awcache_m <= i_wd[19:16]; if (i_be[3]) r_conf_awuser_m <= i_wd[29:24]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_vint_clear <= 1'b0; end else begin if (w_hit9_w) begin if (i_be[0]) r_vint_clear <= i_wd[0]; end else if (w_vint_on) begin r_vint_clear <= 1'b1; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_mask <= 2'b11; end else begin if (w_hitA_w) begin if (i_be[0]) r_mask <= i_wd[1:0]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_front_buffer <= 1'b0; end else begin if (w_hitB_w) begin if (i_be[0]) r_front_buffer <= i_wd[0]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_dma_top_address0 <= 20'b0; r_dma_top_address1 <= 20'b0; r_dma_top_address2 <= 20'b0; r_dma_top_address3 <= 20'b0; end else begin if (w_hitC_w) begin r_dma_top_address0[11:0] <= i_wd[23:12]; r_dma_top_address0[19:12] <= i_wd[31:24]; end if (w_hitD_w) begin r_dma_top_address1[11:0] <= i_wd[23:12]; r_dma_top_address1[19:12] <= i_wd[31:24]; end if (w_hitE_w) begin r_dma_top_address2[11:0] <= i_wd[23:12]; r_dma_top_address2[19:12] <= i_wd[31:24]; end if (w_hitF_w) begin r_dma_top_address3[11:0] <= i_wd[23:12]; r_dma_top_address3[19:12] <= i_wd[31:24]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_dma_length <= 18'b0; r_dma_be <= 4'hf; end else begin if (w_hit10_w) begin if (i_be[0]) r_dma_length[7:0] <= i_wd[7:0]; if (i_be[1]) r_dma_length[15:8] <= i_wd[15:8]; if (i_be[2]) r_dma_length[17:16] <= i_wd[17:16]; if (i_be[3]) r_dma_be <= i_wd[27:24]; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_dma_wd0 <= 32'b0; r_dma_wd1 <= 32'b0; end else begin if (w_hit11_w) begin r_dma_wd0 <= i_wd; end if (w_hit12_w) begin r_dma_wd1 <= i_wd; end end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_dma_start <= 1'b0; r_dma_mode <= 4'b0; r_dma_int <= 1'b0; end else begin if (w_hit13_w) begin if (i_be[0]) r_dma_start <= i_wd[0]; if (i_be[0]) r_dma_mode <= i_wd[7:4]; if (i_be[1]) r_dma_int <= i_wd[8]; end else begin if (i_dma_end) begin r_dma_start <= 1'b0; r_dma_mode <= 1'b0; r_dma_int <= 1'b1; end end end end always @(posedge clk_core) begin r_rd <= w_rd; end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_rstr <= 1'b0; end else begin r_rstr <= w_rstr; end end always @(posedge clk_core or negedge rst_x) begin if (~rst_x) begin r_vint_x <= 1'b1; end else begin r_vint_x <= w_vint_x; end end endmodule
Go to most recent revision | Compare with Previous | Blame | View Log