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//
// Copyright 2013 Ettus Research LLC
//
// radio top level module for b200
// Contains all clock-rate DSP components, all radio and hardware controls and settings
module radio_b200
#(
parameter RADIO_FIFO_SIZE = 13,
parameter SAMPLE_FIFO_SIZE = 11
)
(input radio_clk, input radio_rst,
input [31:0] rx, output [31:0] tx,
inout [31:0] fe_atr, input pps,
input bus_clk, input bus_rst,
input [63:0] tx_tdata, input tx_tlast, input tx_tvalid, output tx_tready,
output [63:0] rx_tdata, output rx_tlast, output rx_tvalid, input rx_tready,
input [63:0] ctrl_tdata, input ctrl_tlast, input ctrl_tvalid, output ctrl_tready,
output [63:0] resp_tdata, output resp_tlast, output resp_tvalid, input resp_tready,
output [63:0] debug
);
// ///////////////////////////////////////////////////////////////////////////////
// FIFO Interfacing to the bus clk domain
// in_tdata splits to tx_tdata and ctrl_tdata
// rx_tdata and resp_tdata get muxed to out_tdata
// Everything except rx flow control must cross in to radio_clk domain before further use
// _b signifies bus_clk domain, _r signifies radio_clk domain
wire [63:0] ctrl_tdata_r;
wire ctrl_tready_r, ctrl_tvalid_r;
wire ctrl_tlast_r;
wire [63:0] resp_tdata_r;
wire resp_tready_r, resp_tvalid_r;
wire resp_tlast_r;
wire [63:0] rx_tdata_r;
wire rx_tready_r, rx_tvalid_r;
wire rx_tlast_r;
wire [63:0] rx_mux_tdata_r;
wire rx_mux_tready_r, rx_mux_tvalid_r;
wire rx_mux_tlast_r;
wire [63:0] rx_err_tdata_r;
wire rx_err_tready_r, rx_err_tvalid_r;
wire rx_err_tlast_r;
wire [63:0] tx_tdata_r;
wire tx_tready_r, tx_tvalid_r;
wire tx_tlast_r;
wire [63:0] txresp_tdata, txresp_tdata_r;
wire txresp_tready, txresp_tready_r, txresp_tvalid, txresp_tvalid_r;
wire txresp_tlast, txresp_tlast_r;
wire [63:0] rmux_tdata_r;
wire rmux_tlast_r, rmux_tvalid_r, rmux_tready_r;
wire [63:0] rx_tdata_int;
wire rx_tready_int, rx_tvalid_int;
wire rx_tlast_int;
axi_fifo_2clk #(.WIDTH(65), .SIZE(0/*minimal*/)) ctrl_fifo
(.reset(bus_rst),
.i_aclk(bus_clk), .i_tvalid(ctrl_tvalid), .i_tready(ctrl_tready), .i_tdata({ctrl_tlast, ctrl_tdata}),
.o_aclk(radio_clk), .o_tvalid(ctrl_tvalid_r), .o_tready(ctrl_tready_r), .o_tdata({ctrl_tlast_r, ctrl_tdata_r}));
axi_fifo_2clk #(.WIDTH(65), .SIZE(RADIO_FIFO_SIZE)) tx_fifo
(.reset(bus_rst),
.i_aclk(bus_clk), .i_tvalid(tx_tvalid), .i_tready(tx_tready), .i_tdata({tx_tlast, tx_tdata}),
.o_aclk(radio_clk), .o_tvalid(tx_tvalid_r), .o_tready(tx_tready_r), .o_tdata({tx_tlast_r, tx_tdata_r}));
axi_fifo_2clk #(.WIDTH(65), .SIZE(0/*minimal*/)) resp_fifo
(.reset(radio_rst),
.i_aclk(radio_clk), .i_tvalid(rmux_tvalid_r), .i_tready(rmux_tready_r), .i_tdata({rmux_tlast_r, rmux_tdata_r}),
.o_aclk(bus_clk), .o_tvalid(resp_tvalid), .o_tready(resp_tready), .o_tdata({resp_tlast, resp_tdata}));
axi_fifo_2clk #(.WIDTH(65), .SIZE(0)) rx_fifo
(.reset(radio_rst),
.i_aclk(radio_clk), .i_tvalid(rx_mux_tvalid_r), .i_tready(rx_mux_tready_r), .i_tdata({rx_mux_tlast_r, rx_mux_tdata_r}),
.o_aclk(bus_clk), .o_tvalid(rx_tvalid_int), .o_tready(rx_tready_int), .o_tdata({rx_tlast_int, rx_tdata_int}));
axi_packet_gate #(.WIDTH(64), .SIZE(RADIO_FIFO_SIZE)) buffer_whole_pkt
(
.clk(bus_clk), .reset(bus_rst), .clear(1'b0),
.i_tdata(rx_tdata_int), .i_tlast(rx_tlast_int), .i_terror(1'b0), .i_tvalid(rx_tvalid_int), .i_tready(rx_tready_int),
.o_tdata(rx_tdata), .o_tlast(rx_tlast), .o_tvalid(rx_tvalid), .o_tready(rx_tready)
);
// /////////////////////////////////////////////////////////////////////////////////////
// Setting bus and controls
localparam SR_SPI = 8'd8;
localparam SR_ATR = 8'd12;
localparam SR_TEST = 8'd21;
localparam SR_CODEC_IDLE = 8'd22;
localparam SR_READBACK = 8'd32;
localparam SR_TX_CTRL = 8'd64;
localparam SR_RX_CTRL = 8'd96;
localparam SR_RX_DSP = 8'd144;
localparam SR_TX_DSP = 8'd184;
localparam SR_TIME = 8'd128;
localparam SR_RX_FMT = 8'd136;
localparam SR_TX_FMT = 8'd138;
wire set_stb;
wire [7:0] set_addr;
wire [31:0] set_data;
wire [31:0] test_readback;
wire run_rx, run_tx;
reg [63:0] rb_data;
wire [1:0] rb_addr;
wire [63:0] vita_time, vita_time_lastpps;
timekeeper #(.BASE(SR_TIME)) timekeeper
(.clk(radio_clk), .reset(radio_rst), .pps(pps),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.vita_time(vita_time), .vita_time_lastpps(vita_time_lastpps));
radio_ctrl_proc radio_ctrl_proc
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.ctrl_tdata(ctrl_tdata_r), .ctrl_tlast(ctrl_tlast_r), .ctrl_tvalid(ctrl_tvalid_r), .ctrl_tready(ctrl_tready_r),
.resp_tdata(resp_tdata_r), .resp_tlast(resp_tlast_r), .resp_tvalid(resp_tvalid_r), .resp_tready(resp_tready_r),
.vita_time(vita_time),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.ready(1'b1), .readback(rb_data),
.debug());
always @*
case(rb_addr)
2'd0 : rb_data <= { 32'b0, test_readback };
2'd1 : rb_data <= vita_time;
2'd2 : rb_data <= vita_time_lastpps;
2'd3 : rb_data <= {tx, rx};
default : rb_data <= 64'd0;
endcase // case (rb_addr)
setting_reg #(.my_addr(SR_TEST), .awidth(8), .width(32)) sr_test
(.clk(radio_clk), .rst(radio_rst), .strobe(set_stb), .addr(set_addr), .in(set_data),
.out(test_readback), .changed());
wire [31:0] tx_idle;
setting_reg #(.my_addr(SR_CODEC_IDLE), .awidth(8), .width(32)) sr_codec_idle
(.clk(radio_clk), .rst(radio_rst), .strobe(set_stb), .addr(set_addr), .in(set_data),
.out(tx_idle), .changed());
setting_reg #(.my_addr(SR_READBACK), .awidth(8), .width(2)) sr_rdback
(.clk(radio_clk), .rst(radio_rst), .strobe(set_stb), .addr(set_addr), .in(set_data),
.out(rb_addr), .changed());
gpio_atr #(.BASE(SR_ATR), .WIDTH(32)) gpio_atr
(.clk(radio_clk),.reset(radio_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.rx(run_rx), .tx(run_tx),
.gpio(fe_atr), .gpio_readback() );
// /////////////////////////////////////////////////////////////////////////////////
// TX Chain
wire [175:0] txsample_tdata;
wire txsample_tvalid, txsample_tready;
wire [31:0] sample_tx;
wire ack_or_error, packet_consumed;
wire [11:0] seqnum;
wire [63:0] error_code;
wire [31:0] sid;
wire [23:0] tx_fe_i, tx_fe_q;
wire [31:0] debug_tx_control;
assign tx[31:16] = (run_tx)? tx_fe_i[23:8] : tx_idle[31:16];
assign tx[15:0] = (run_tx)? tx_fe_q[23:8] : tx_idle[15:0];
wire [63:0] tx_tdata_i; wire tx_tlast_i, tx_tvalid_i, tx_tready_i;
new_tx_deframer tx_deframer
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.i_tdata(tx_tdata_i), .i_tlast(tx_tlast_i), .i_tvalid(tx_tvalid_i), .i_tready(tx_tready_i),
.sample_tdata(txsample_tdata), .sample_tvalid(txsample_tvalid), .sample_tready(txsample_tready));
new_tx_control #(.BASE(SR_TX_CTRL)) tx_control
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.vita_time(vita_time),
.ack_or_error(ack_or_error), .packet_consumed(packet_consumed),
.seqnum(seqnum), .error_code(error_code), .sid(sid),
.sample_tdata(txsample_tdata), .sample_tvalid(txsample_tvalid), .sample_tready(txsample_tready),
.sample(sample_tx), .run(run_tx), .strobe(strobe_tx),
.debug(debug_tx_control));
tx_responder #(.BASE(SR_TX_CTRL+2)) tx_responder
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.ack_or_error(ack_or_error), .packet_consumed(packet_consumed),
.seqnum(seqnum), .error_code(error_code), .sid(sid),
.vita_time(vita_time),
.o_tdata(txresp_tdata_r), .o_tlast(txresp_tlast_r), .o_tvalid(txresp_tvalid_r), .o_tready(txresp_tready_r));
duc_chain #(.BASE(SR_TX_DSP), .DSPNO(0), .WIDTH(24)) duc_chain
(.clk(radio_clk), .rst(radio_rst), .clr(1'b0),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.tx_fe_i(tx_fe_i),.tx_fe_q(tx_fe_q),
.sample(sample_tx), .run(run_tx), .strobe(strobe_tx),
.debug() );
chdr_xxxx_to_16sc_chain #(.BASE(SR_TX_FMT)) convert_xxxx_to_16sc
(.clk(radio_clk), .reset(radio_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.i_tdata(tx_tdata_r), .i_tlast(tx_tlast_r), .i_tvalid(tx_tvalid_r), .i_tready(tx_tready_r),
.o_tdata(tx_tdata_i), .o_tlast(tx_tlast_i), .o_tvalid(tx_tvalid_i), .o_tready(tx_tready_i));
// /////////////////////////////////////////////////////////////////////////////////
// RX Chain
wire full, eob_rx;
wire strobe_rx;
wire [31:0] sample_rx;
wire [31:0] rx_sid;
wire [11:0] rx_seqnum;
wire [63:0] rx_tdata_i; wire rx_tlast_i, rx_tvalid_i, rx_tready_i;
new_rx_framer #(.BASE(SR_RX_CTRL+4),.SAMPLE_FIFO_SIZE(SAMPLE_FIFO_SIZE)) new_rx_framer
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.vita_time(vita_time),
.strobe(strobe_rx), .sample(sample_rx), .run(run_rx), .eob(eob_rx), .full(full),
.sid(rx_sid), .seqnum(rx_seqnum),
.o_tdata(rx_tdata_i), .o_tlast(rx_tlast_i), .o_tvalid(rx_tvalid_i), .o_tready(rx_tready_i),
.debug());
new_rx_control #(.BASE(SR_RX_CTRL)) new_rx_control
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.vita_time(vita_time),
.strobe(strobe_rx), .run(run_rx), .eob(eob_rx), .full(full),
.sid(rx_sid), .seqnum(rx_seqnum),
.err_tdata(rx_err_tdata_r), .err_tlast(rx_err_tlast_r), .err_tvalid(rx_err_tvalid_r), .err_tready(rx_err_tready_r),
.debug());
ddc_chain #(.BASE(SR_RX_DSP), .DSPNO(0), .WIDTH(24)) ddc_chain
(.clk(radio_clk), .rst(radio_rst), .clr(1'b0),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.rx_fe_i({rx[31:16],8'd0}),.rx_fe_q({rx[15:0],8'd0}),
.sample(sample_rx), .run(run_rx), .strobe(strobe_rx),
.debug() );
chdr_16sc_to_xxxx_chain #(.BASE(SR_RX_FMT)) convert_16sc_to_xxxx
(.clk(radio_clk), .reset(radio_rst),
.set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
.i_tdata(rx_tdata_i), .i_tlast(rx_tlast_i), .i_tvalid(rx_tvalid_i), .i_tready(rx_tready_i),
.o_tdata(rx_tdata_r), .o_tlast(rx_tlast_r), .o_tvalid(rx_tvalid_r), .o_tready(rx_tready_r));
// /////////////////////////////////////////////////////////////////////////////////
// RX Channel Muxing
axi_mux4 #(.PRIO(1), .WIDTH(64)) rx_mux
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.i0_tdata(rx_tdata_r), .i0_tlast(rx_tlast_r), .i0_tvalid(rx_tvalid_r), .i0_tready(rx_tready_r),
.i1_tdata(rx_err_tdata_r), .i1_tlast(rx_err_tlast_r), .i1_tvalid(rx_err_tvalid_r), .i1_tready(rx_err_tready_r),
.i2_tdata(), .i2_tlast(), .i2_tvalid(1'b0), .i2_tready(),
.i3_tdata(), .i3_tlast(), .i3_tvalid(1'b0), .i3_tready(),
.o_tdata(rx_mux_tdata_r), .o_tlast(rx_mux_tlast_r), .o_tvalid(rx_mux_tvalid_r), .o_tready(rx_mux_tready_r));
// /////////////////////////////////////////////////////////////////////////////////
// Response Channel Muxing
axi_mux4 #(.PRIO(0), .WIDTH(64)) response_mux
(.clk(radio_clk), .reset(radio_rst), .clear(1'b0),
.i0_tdata(txresp_tdata_r), .i0_tlast(txresp_tlast_r), .i0_tvalid(txresp_tvalid_r), .i0_tready(txresp_tready_r),
.i1_tdata(resp_tdata_r), .i1_tlast(resp_tlast_r), .i1_tvalid(resp_tvalid_r), .i1_tready(resp_tready_r),
.i2_tdata(), .i2_tlast(), .i2_tvalid(1'b0), .i2_tready(),
.i3_tdata(), .i3_tlast(), .i3_tvalid(1'b0), .i3_tready(),
.o_tdata(rmux_tdata_r), .o_tlast(rmux_tlast_r), .o_tvalid(rmux_tvalid_r), .o_tready(rmux_tready_r));
// DEBUG LOGIC - NOT FOR PRODUCTION
assign debug = 0;
endmodule // radio_b200
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