barebones udp support. Compiles, but untested.

1 files changed, 78 insertions, 0 deletions

diff --git a/udp/udp_wrapper.v b/udp/udp_wrapper.v
new file mode 100644
index 000000000..490e392c5
--- /dev/null
+++ b/udp/udp_wrapper.v
@@ -0,0 +1,78 @@
+
+module udp_wrapper
+  #(parameter BASE=0,
+    parameter RXFIFOSIZE=11)
+   (input clk, input reset, input clear,
+    input set_stb, input [7:0] set_addr, input [31:0] set_data,
+    input [18:0] rx_f19_data, input rx_f19_src_rdy_i, output rx_f19_dst_rdy_o,
+    output [18:0] tx_f19_data, output tx_f19_src_rdy_o, input tx_f19_dst_rdy_i,
+    
+    output [35:0] rx_f36_data, output rx_f36_src_rdy_o, input rx_f36_dst_rdy_i,
+    input [35:0] tx_f36_data, input tx_f36_src_rdy_i, output tx_f36_dst_rdy_o
+    );
+   
+   wire 	 tx_int1_src_rdy, tx_int1_dst_rdy;
+   wire [18:0] 	 tx_int1_data;
+   
+   wire 	 tx_int2_src_rdy, tx_int2_dst_rdy;
+   wire [18:0] 	 tx_int2_data;
+   
+   // TX side
+   fifo36_to_fifo19 fifo36_to_fifo19
+     (.clk(clk), .reset(reset), .clear(clear),
+      .f36_datain(tx_f36_data), .f36_src_rdy_i(tx_f36_src_rdy_), .f36_dst_rdy_o(tx_f36_dst_rdy_o),
+      .f19_dataout(tx_int1_data), .f19_src_rdy_o(tx_int1_src_rdy), .f19_dst_rdy_i(tx_int1_dst_rdy) );
+
+   fifo_short #(.WIDTH(19)) shortfifo19_a
+     (.clk(clk), .reset(reset), .clear(clear),
+      .datain(tx_int1_data), .src_rdy_i(tx_int1_src_rdy), .dst_rdy_o(tx_int1_dst_rdy),
+      .dataout(tx_int2_data), .src_rdy_o(tx_int2_src_rdy), .dst_rdy_i(tx_int2_dst_rdy),
+      .space(), .occupied() );
+     
+   prot_eng_tx #(.BASE(BASE)) prot_eng_tx
+     (.clk(clk), .reset(reset), .clear(clear),
+      .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
+      .datain(tx_int2_data), .src_rdy_i(tx_int2_src_rdy), .dst_rdy_o(tx_int2_dst_rdy),
+      .dataout(tx_f19_data), .src_rdy_o(tx_f19_src_rdy_o), .dst_rdy_i(tx_f19_dst_rdy_i) );
+
+   // RX side
+   wire rx_int1_src_rdy, rx_int1_dst_rdy;
+   wire [18:0] rx_int1_data;
+      
+   wire rx_int2_src_rdy, rx_int2_dst_rdy;
+   wire [18:0] rx_int2_data;
+      
+   wire rx_int3_src_rdy, rx_int3_dst_rdy;
+   wire [35:0] rx_int3_data;
+   
+`ifdef USE_PROT_ENG
+   prot_eng_rx #(.BASE(BASE)) prot_eng_rx
+     (.clk(clk), .reset(reset), .clear(clear),
+      .datain(rx_f19_data), .src_rdy_i(rx_f19_src_rdy_i), .dst_rdy_o(rx_f19_dst_rdy_o),
+      .dataout(rx_int1_data), .src_rdy_o(rx_int1_src_rdy), .dst_rdy_i(rx_int1_dst_rdy) );
+`else
+   fifo19_rxrealign fifo19_rxrealign
+     (.clk(clk), .reset(reset), .clear(clear),
+      .datain(rx_f19_data), .src_rdy_i(rx_f19_src_rdy_i), .dst_rdy_o(rx_f19_dst_rdy_o),
+      .dataout(rx_int1_data), .src_rdy_o(rx_int1_src_rdy), .dst_rdy_i(rx_int1_dst_rdy) );
+`endif // !`ifdef USE_PROT_ENG
+   
+   fifo_short #(.WIDTH(19)) shortfifo19_b
+     (.clk(clk), .reset(reset), .clear(clear),
+      .datain(rx_int1_data), .src_rdy_i(rx_int1_src_rdy), .dst_rdy_o(rx_int1_dst_rdy),
+      .dataout(rx_int2_data), .src_rdy_o(rx_int2_src_rdy), .dst_rdy_i(rx_int2_dst_rdy),
+      .space(), .occupied() );
+
+   fifo19_to_fifo36 fifo19_to_fifo36
+     (.clk(clk), .reset(reset), .clear(clear),
+      .f19_datain(rx_int2_data), .f19_src_rdy_i(rx_int2_src_rdy), .f19_dst_rdy_o(rx_int2_dst_rdy),
+      .f36_dataout(rx_int3_data), .f36_src_rdy_o(rx_int3_src_rdy), .f36_dst_rdy_i(rx_int3_dst_rdy) );
+   
+   fifo_cascade #(.WIDTH(36),.SIZE(RXFIFOSIZE)) eth0_rxfifo
+     (.clk(clk), .reset(reset), .clear(clear),
+      .datain(rx_int3_data), .src_rdy_i(rx_int3_src_rdy), .dst_rdy_o(rx_int3_dst_rdy),
+      .dataout({f36_flags_o,f36_data_o}), .src_rdy_o(f36_src_rdy_o), .dst_rdy_i(f36_dst_rdy_i),
+      .space(), .occupied() );
+
+   
+endmodule // udp_wrapper