From f5ef91168704f2203b006f515c6c889bb696af2f Mon Sep 17 00:00:00 2001 From: Matt Ettus Date: Fri, 18 Mar 2011 14:17:46 -0700 Subject: u1p: pass tx status/error packets back through GPIF over the response channel (short packets) --- usrp2/gpif/gpif.v | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) (limited to 'usrp2/gpif') diff --git a/usrp2/gpif/gpif.v b/usrp2/gpif/gpif.v index e72490b17..8cac8b466 100644 --- a/usrp2/gpif/gpif.v +++ b/usrp2/gpif/gpif.v @@ -17,7 +17,8 @@ module gpif input fifo_clk, input fifo_rst, input clear_tx, input clear_rx, output [35:0] tx_data_o, output tx_src_rdy_o, input tx_dst_rdy_i, input [35:0] rx_data_i, input rx_src_rdy_i, output rx_dst_rdy_o, - + input [35:0] tx_err_data_i, input tx_err_src_rdy_i, output tx_err_dst_rdy_o, + output tx_underrun, output rx_overrun, input [7:0] test_rate, input [3:0] test_ctrl, output [31:0] debug0, output [31:0] debug1 @@ -77,8 +78,9 @@ module gpif wire rx36_src_rdy, rx36_dst_rdy, rx_src_rdy, rx_dst_rdy; wire [18:0] rx19_data; wire rx19_src_rdy, rx19_dst_rdy; - wire [18:0] resp_data, resp_int; - wire resp_src_rdy, resp_dst_rdy, resp_src_rdy_int, resp_dst_rdy_int; + wire [18:0] resp_data, resp_int1, resp_int2; + wire resp_src_rdy, resp_dst_rdy; + wire resp_src_rdy_int1, resp_dst_rdy_int1, resp_src_rdy_int2, resp_dst_rdy_int2; fifo_cascade #(.WIDTH(36), .SIZE(RXFIFOSIZE)) rx_fifo36 (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_rx), @@ -106,15 +108,29 @@ module gpif fifo_to_wb fifo_to_wb (.clk(fifo_clk), .reset(fifo_rst), .clear(0), .data_i(ctrl_data), .src_rdy_i(ctrl_src_rdy), .dst_rdy_o(ctrl_dst_rdy), - .data_o(resp_int), .src_rdy_o(resp_src_rdy_int), .dst_rdy_i(resp_dst_rdy_int), + .data_o(resp_int1), .src_rdy_o(resp_src_rdy_int1), .dst_rdy_i(resp_dst_rdy_int1), .wb_adr_o(wb_adr_o), .wb_dat_mosi(wb_dat_mosi), .wb_dat_miso(wb_dat_miso), .wb_sel_o(wb_sel_o), .wb_cyc_o(wb_cyc_o), .wb_stb_o(wb_stb_o), .wb_we_o(wb_we_o), .wb_ack_i(wb_ack_i), .triggers(triggers), .debug0(), .debug1()); + wire [18:0] tx_err19_data; + wire tx_err19_src_rdy, tx_err19_dst_rdy; + + fifo36_to_fifo19 #(.LE(1)) f36_to_f19_txerr + (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_rx), + .f36_datain(tx_err_data_i), .f36_src_rdy_i(tx_err_src_rdy_i), .f36_dst_rdy_o(tx_err_dst_rdy_o), + .f19_dataout(tx_err19_data), .f19_src_rdy_o(tx_err19_src_rdy), .f19_dst_rdy_i(tx_err19_dst_rdy) ); + + fifo19_mux #(.prio(0)) mux_err_stream + (.clk(wb_clk), .reset(wb_rst), .clear(0), + .data0_i(resp_int1), .src0_rdy_i(resp_src_rdy_int1), .dst0_rdy_o(resp_dst_rdy_int1), + .data1_i(tx_err19_data), .src1_rdy_i(tx_err19_src_rdy), .dst1_rdy_o(tx_err19_dst_rdy), + .data_o(resp_int2), .src_rdy_o(resp_src_rdy_int2), .dst_rdy_i(resp_dst_rdy_int2)); + fifo19_pad #(.LENGTH(16)) fifo19_pad (.clk(fifo_clk), .reset(fifo_rst), .clear(0), - .data_i(resp_int), .src_rdy_i(resp_src_rdy_int), .dst_rdy_o(resp_dst_rdy_int), + .data_i(resp_int2), .src_rdy_i(resp_src_rdy_int2), .dst_rdy_o(resp_dst_rdy_int2), .data_o(resp_data), .src_rdy_o(resp_src_rdy), .dst_rdy_i(resp_dst_rdy)); // //////////////////////////////////////////////////////////////////// -- cgit v1.2.3