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authorMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
committerMartin Braun <martin.braun@ettus.com>2014-10-07 11:25:20 +0200
commitfd3e84941de463fa1a7ebab0a69515b4bf2614cd (patch)
tree3fa721a13d41d2c0451d663a59a220a38fd5e614 /fpga/usrp2/vrt
parent3b66804e41891e358c790b453a7a59ec7462dba4 (diff)
downloaduhd-fd3e84941de463fa1a7ebab0a69515b4bf2614cd.tar.gz
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Removed copy of FPGA source files.
Diffstat (limited to 'fpga/usrp2/vrt')
-rw-r--r--fpga/usrp2/vrt/.gitignore4
-rw-r--r--fpga/usrp2/vrt/Makefile.srcs20
-rw-r--r--fpga/usrp2/vrt/gen_context_pkt.v106
-rw-r--r--fpga/usrp2/vrt/trigger_context_pkt.v69
-rw-r--r--fpga/usrp2/vrt/vita_packet_demux36.v102
-rw-r--r--fpga/usrp2/vrt/vita_pkt_gen.v59
-rwxr-xr-xfpga/usrp2/vrt/vita_rx.build1
-rw-r--r--fpga/usrp2/vrt/vita_rx_chain.v114
-rw-r--r--fpga/usrp2/vrt/vita_rx_control.v231
-rw-r--r--fpga/usrp2/vrt/vita_rx_engine_glue.v95
-rw-r--r--fpga/usrp2/vrt/vita_rx_framer.v224
-rw-r--r--fpga/usrp2/vrt/vita_rx_tb.v246
-rwxr-xr-xfpga/usrp2/vrt/vita_tx.build1
-rw-r--r--fpga/usrp2/vrt/vita_tx_chain.v162
-rw-r--r--fpga/usrp2/vrt/vita_tx_control.v238
-rw-r--r--fpga/usrp2/vrt/vita_tx_deframer.v261
-rw-r--r--fpga/usrp2/vrt/vita_tx_engine_glue.v99
-rw-r--r--fpga/usrp2/vrt/vita_tx_tb.v193
18 files changed, 0 insertions, 2225 deletions
diff --git a/fpga/usrp2/vrt/.gitignore b/fpga/usrp2/vrt/.gitignore
deleted file mode 100644
index 446b2daae..000000000
--- a/fpga/usrp2/vrt/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-vita_rx_tb
-vita_tx_tb
-*.vcd
-*.sav
diff --git a/fpga/usrp2/vrt/Makefile.srcs b/fpga/usrp2/vrt/Makefile.srcs
deleted file mode 100644
index 84ba5dc29..000000000
--- a/fpga/usrp2/vrt/Makefile.srcs
+++ /dev/null
@@ -1,20 +0,0 @@
-#
-# Copyright 2010 Ettus Research LLC
-#
-
-##################################################
-# VRT Sources
-##################################################
-VRT_SRCS = $(abspath $(addprefix $(BASE_DIR)/../vrt/, \
-vita_rx_control.v \
-vita_rx_framer.v \
-vita_rx_chain.v \
-vita_tx_control.v \
-vita_tx_deframer.v \
-vita_tx_chain.v \
-gen_context_pkt.v \
-trigger_context_pkt.v \
-vita_pkt_gen.v \
-vita_rx_engine_glue.v \
-vita_tx_engine_glue.v \
-))
diff --git a/fpga/usrp2/vrt/gen_context_pkt.v b/fpga/usrp2/vrt/gen_context_pkt.v
deleted file mode 100644
index d6674e887..000000000
--- a/fpga/usrp2/vrt/gen_context_pkt.v
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-
-module gen_context_pkt
- #(parameter PROT_ENG_FLAGS=1,
- parameter DSP_NUMBER=0)
- (input clk, input reset, input clear,
- input trigger, output sent,
- input [31:0] streamid,
- input [63:0] vita_time,
- input [31:0] message,
- input [31:0] seqnum,
- output [35:0] data_o, output src_rdy_o, input dst_rdy_i);
-
- localparam CTXT_IDLE = 0;
- localparam CTXT_PROT_ENG = 1;
- localparam CTXT_HEADER = 2;
- localparam CTXT_STREAMID = 3;
- localparam CTXT_TICS = 4;
- localparam CTXT_TICS2 = 5;
- localparam CTXT_MESSAGE = 6;
- localparam CTXT_FLOWCTRL = 7;
- localparam CTXT_DONE = 8;
-
- reg [33:0] data_int;
- wire src_rdy_int, dst_rdy_int;
- reg [3:0] seqno;
- reg [3:0] ctxt_state;
- reg [63:0] err_time;
- reg [31:0] stored_message;
-
- always @(posedge clk)
- if(reset | clear)
- stored_message <= 0;
- else
- if(trigger)
- stored_message <= message;
- else if(ctxt_state == CTXT_DONE)
- stored_message <= 0;
-
- // Don't want to clear most of this to avoid getting stuck with a half packet in the pipe
- always @(posedge clk)
- if(reset)
- begin
- ctxt_state <= CTXT_IDLE;
- seqno <= 0;
- end
- else
- case(ctxt_state)
- CTXT_IDLE :
- if(trigger)
- begin
- err_time <= vita_time;
- if(PROT_ENG_FLAGS)
- ctxt_state <= CTXT_PROT_ENG;
- else
- ctxt_state <= CTXT_HEADER;
- end
-
- CTXT_DONE :
- begin
- ctxt_state <= CTXT_IDLE;
- seqno <= seqno + 4'd1;
- end
- default :
- if(dst_rdy_int)
- ctxt_state <= ctxt_state + 1;
- endcase // case (ctxt_state)
-
- assign src_rdy_int = ~( (ctxt_state == CTXT_IDLE) | (ctxt_state == CTXT_DONE) );
-
- always @*
- case(ctxt_state)
- CTXT_PROT_ENG : data_int <= { 2'b01, 13'b0, DSP_NUMBER[0], 1'b1, 1'b1, 16'd24 }; // UDP port 1 or 3
- CTXT_HEADER : data_int <= { 1'b0, (PROT_ENG_FLAGS ? 1'b0 : 1'b1), 12'b010100000001, seqno, 16'd6 };
- CTXT_STREAMID : data_int <= { 2'b00, streamid };
- CTXT_TICS : data_int <= { 2'b00, err_time[63:32] };
- CTXT_TICS2 : data_int <= { 2'b00, err_time[31:0] };
- CTXT_MESSAGE : data_int <= { 2'b00, message };
- CTXT_FLOWCTRL : data_int <= { 2'b10, seqnum };
- default : data_int <= {2'b00, 32'b00};
- endcase // case (ctxt_state)
-
- fifo_short #(.WIDTH(34)) ctxt_fifo
- (.clk(clk), .reset(reset), .clear(0),
- .datain(data_int), .src_rdy_i(src_rdy_int), .dst_rdy_o(dst_rdy_int),
- .dataout(data_o[33:0]), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i));
- assign data_o[35:34] = 2'b00;
-
-endmodule // gen_context_pkt
diff --git a/fpga/usrp2/vrt/trigger_context_pkt.v b/fpga/usrp2/vrt/trigger_context_pkt.v
deleted file mode 100644
index 3d9c2e5c6..000000000
--- a/fpga/usrp2/vrt/trigger_context_pkt.v
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-
-module trigger_context_pkt
- #(parameter BASE=0)
- (input clk, input reset, input clear,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
- input packet_consumed, output reg trigger);
-
- wire [23:0] cycles;
- wire [15:0] packets;
- wire [6:0] dummy1;
- wire [14:0] dummy2;
- wire enable_cycle, enable_consumed;
- reg [30:0] cycle_count, packet_count;
-
-
- setting_reg #(.my_addr(BASE+4), .at_reset(0)) sr_cycles
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out({enable_cycle,dummy1,cycles}),.changed());
-
- setting_reg #(.my_addr(BASE+5), .at_reset(0)) sr_packets
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out({enable_consumed,dummy2,packets}),.changed());
-
- always @(posedge clk)
- if(reset | clear)
- cycle_count <= 0;
- else
- if(trigger)
- cycle_count <= 0;
- else if(enable_cycle)
- cycle_count <= cycle_count + 1;
-
- always @(posedge clk)
- if(reset | clear)
- packet_count <= 0;
- else
- if(trigger)
- packet_count <= 0;
- else if(packet_consumed & enable_consumed)
- packet_count <= packet_count + 1;
-
- always @(posedge clk)
- if(reset | clear)
- trigger <= 0;
- else
- if((cycle_count > cycles)|(packet_count > packets))
- trigger <= 1;
- else
- trigger <= 0;
-
-endmodule // trigger_context_pkt
diff --git a/fpga/usrp2/vrt/vita_packet_demux36.v b/fpga/usrp2/vrt/vita_packet_demux36.v
deleted file mode 100644
index 83fb26215..000000000
--- a/fpga/usrp2/vrt/vita_packet_demux36.v
+++ /dev/null
@@ -1,102 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-//demux an input stream based on the SID
-//output packet has SID removed from header
-
-module vita_packet_demux36
-#(
- parameter NUMCHAN = 1,
- parameter SID_BASE = 0
-)
-(
- input clk, input rst,
-
- input [35:0] in_data,
- input in_src_rdy,
- output in_dst_rdy,
-
- output [35:0] out_data,
- output [NUMCHAN-1:0] out_src_rdy,
- input [NUMCHAN-1:0] out_dst_rdy
-);
-
- reg [1:0] state;
- localparam STATE_WAIT_HDR = 0;
- localparam STATE_PROC_SID = 1;
- localparam STATE_WRITE_HDR = 2;
- localparam STATE_FORWARD = 3;
-
- reg [31:0] hdr;
- reg [NUMCHAN-1:0] sid;
- wire has_sid = in_data[28];
- reg has_sid_reg;
-
- wire my_out_dst_rdy = out_dst_rdy[sid];
- wire my_out_src_rdy = out_src_rdy[sid];
-
- always @(posedge clk) begin
- if (rst) begin
- state <= STATE_WAIT_HDR;
- end
- else case(state)
-
- STATE_WAIT_HDR: begin
- if (in_src_rdy && in_dst_rdy && in_data[32]) begin
- state <= (has_sid)? STATE_PROC_SID : STATE_WRITE_HDR;
- end
- sid <= 0;
- hdr <= in_data[31:0];
- has_sid_reg <= has_sid;
- end
-
- STATE_PROC_SID: begin
- if (in_src_rdy && in_dst_rdy) begin
- state <= STATE_WRITE_HDR;
- sid <= in_data[31:0] - SID_BASE;
- hdr[28] <= 1'b0; //clear has sid
- hdr[15:0] <= hdr[15:0] - 1'b1; //subtract a line
- end
- end
-
- STATE_WRITE_HDR: begin
- if (my_out_src_rdy && my_out_dst_rdy) begin
- state <= STATE_FORWARD;
- end
- end
-
- STATE_FORWARD: begin
- if (my_out_src_rdy && my_out_dst_rdy && out_data[33]) begin
- state <= STATE_WAIT_HDR;
- end
- end
-
- endcase //state
- end
-
- assign out_data = (state == STATE_WRITE_HDR)? {4'b0001, hdr} : in_data;
- wire out_src_rdy_i = (state == STATE_WRITE_HDR)? 1'b1 : ((state == STATE_FORWARD)? in_src_rdy : 1'b0);
- assign in_dst_rdy = (state == STATE_WAIT_HDR || state == STATE_PROC_SID)? 1'b1 : ((state == STATE_FORWARD)? my_out_dst_rdy : 1'b0);
-
- genvar i;
- generate
- for(i = 0; i < NUMCHAN; i = i + 1) begin:valid_assign
- assign out_src_rdy[i] = (i == sid)? out_src_rdy_i : 1'b0;
- end
- endgenerate
-
-endmodule //vita_packet_demux36
diff --git a/fpga/usrp2/vrt/vita_pkt_gen.v b/fpga/usrp2/vrt/vita_pkt_gen.v
deleted file mode 100644
index b962254a6..000000000
--- a/fpga/usrp2/vrt/vita_pkt_gen.v
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-
-module vita_pkt_gen
- (input clk, input reset, input clear,
- input [15:0] len,
- output [35:0] data_o, output src_rdy_o, input dst_rdy_i);
-
- reg [15:0] state;
- reg [31:0] seq, data;
-
- wire sof = (state == 0);
- wire eof = (state == (len-1));
- wire consume = src_rdy_o & dst_rdy_i;
-
- assign src_rdy_o = 1;
-
- always @(posedge clk)
- if(reset | clear)
- begin
- state <= 0;
- seq <= 0;
- end
- else
- if(consume)
- if(eof)
- begin
- state <= 0;
- seq <= seq + 1;
- end
- else
- state <= state + 1;
-
- always @*
- case(state)
- 0 : data <= {24'h000,seq[3:0],len};
- 1 : data <= seq;
- default : data <= {~state,state};
- endcase // case (state)
-
- assign data_o = {2'b00, eof, sof, data};
-
-endmodule // vita_pkt_gen
diff --git a/fpga/usrp2/vrt/vita_rx.build b/fpga/usrp2/vrt/vita_rx.build
deleted file mode 100755
index 010d1be6e..000000000
--- a/fpga/usrp2/vrt/vita_rx.build
+++ /dev/null
@@ -1 +0,0 @@
-iverilog -Wimplict -Wportbind -y ../models -y . -y ../control_lib/ -y ../fifo -y ../coregen -y /opt/Xilinx/10.1/ISE/verilog/src/XilinxCoreLib -y /opt/Xilinx/10.1/ISE/verilog/src/unisims/ -y ../timing -o vita_rx_tb vita_rx_tb.v
diff --git a/fpga/usrp2/vrt/vita_rx_chain.v b/fpga/usrp2/vrt/vita_rx_chain.v
deleted file mode 100644
index 2788dc9d5..000000000
--- a/fpga/usrp2/vrt/vita_rx_chain.v
+++ /dev/null
@@ -1,114 +0,0 @@
-//
-// Copyright 2011-2012 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-module vita_rx_chain
- #(parameter BASE=0,
- parameter UNIT=0,
- parameter FIFOSIZE=10,
- parameter PROT_ENG_FLAGS=1,
- parameter DSP_NUMBER=0)
- (input clk, input reset,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
- input set_stb_user, input [7:0] set_addr_user, input [31:0] set_data_user,
- input [63:0] vita_time,
- input [31:0] sample, input strobe,
- output [35:0] rx_data_o, output rx_src_rdy_o, input rx_dst_rdy_i,
- output overrun, output run, output clear_o,
- output [31:0] debug );
-
- wire [100:0] sample_data;
- wire sample_dst_rdy, sample_src_rdy;
- wire [31:0] vrc_debug, vrf_debug;
-
- wire [35:0] rx_data_int;
- wire rx_src_rdy_int, rx_dst_rdy_int;
-
- wire clear;
- assign clear_o = clear;
- wire clear_int;
- setting_reg #(.my_addr(BASE+8)) sr
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(),.changed(clear_int));
-
- vita_rx_control #(.BASE(BASE), .WIDTH(32)) vita_rx_control
- (.clk(clk), .reset(reset), .clear(clear),
- .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
- .vita_time(vita_time), .overrun(overrun),
- .sample(sample), .run(run), .strobe(strobe),
- .sample_fifo_o(sample_data), .sample_fifo_dst_rdy_i(sample_dst_rdy), .sample_fifo_src_rdy_o(sample_src_rdy),
- .debug_rx(vrc_debug));
-
- vita_rx_framer #(.BASE(BASE), .MAXCHAN(1)) vita_rx_framer
- (.clk(clk), .reset(reset), .clear(clear),
- .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
- .sample_fifo_i(sample_data), .sample_fifo_dst_rdy_o(sample_dst_rdy), .sample_fifo_src_rdy_i(sample_src_rdy),
- .data_o(rx_data_int), .src_rdy_o(rx_src_rdy_int), .dst_rdy_i(rx_dst_rdy_int),
- .debug_rx(vrf_debug) );
-
- wire [FIFOSIZE-1:0] access_adr, access_len;
- wire access_we, access_stb, access_ok, access_done, access_skip_read;
- wire [35:0] dsp_to_buf, buf_to_dsp;
- wire [35:0] rx_data_int2;
- wire rx_src_rdy_int2, rx_dst_rdy_int2;
-
- double_buffer #(.BUF_SIZE(FIFOSIZE)) db
- (.clk(clk),.reset(reset),.clear(clear),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(dsp_to_buf), .access_dat_o(buf_to_dsp),
-
- .data_i(rx_data_int), .src_rdy_i(rx_src_rdy_int), .dst_rdy_o(rx_dst_rdy_int),
- .data_o(rx_data_int2), .src_rdy_o(rx_src_rdy_int2), .dst_rdy_i(rx_dst_rdy_int2));
-
- vita_rx_engine_glue #(.DSPNO(DSP_NUMBER), .MAIN_SETTINGS_BASE(BASE+3), .BUF_SIZE(FIFOSIZE)) dspengine_rx
- (.clock(clk),.reset(reset),.clear(clear),
- .set_stb_main(set_stb), .set_addr_main(set_addr), .set_data_main(set_data),
- .set_stb_user(set_stb_user), .set_addr_user(set_addr_user), .set_data_user(set_data_user),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(buf_to_dsp), .access_dat_o(dsp_to_buf));
-
- add_routing_header #(.PORT_SEL(UNIT),
- .PROT_ENG_FLAGS(PROT_ENG_FLAGS)) dsp_routing_header
- (.clk(clk), .reset(reset), .clear(clear),
- .data_i(rx_data_int2), .src_rdy_i(rx_src_rdy_int2), .dst_rdy_o(rx_dst_rdy_int2),
- .data_o(rx_data_o), .src_rdy_o(rx_src_rdy_o), .dst_rdy_i(rx_dst_rdy_i) );
-
- //only clear once a full packet has passed through the output interface
- reg xfer_pkt, clear_oneshot;
- assign clear = (clear_oneshot)? ~xfer_pkt : 0;
- always @(posedge clk) begin
-
- if (reset || clear) begin
- clear_oneshot <= 0;
- end
- else if (clear_int) begin
- clear_oneshot <= 1;
- end
-
- if (reset || clear) begin
- xfer_pkt <= 0;
- end
- else if (rx_src_rdy_o && rx_dst_rdy_i) begin
- xfer_pkt <= ~rx_data_o[33];
- end
- end
-
- assign debug = vrc_debug; // | vrf_debug;
-
-endmodule // vita_rx_chain
diff --git a/fpga/usrp2/vrt/vita_rx_control.v b/fpga/usrp2/vrt/vita_rx_control.v
deleted file mode 100644
index daec734a8..000000000
--- a/fpga/usrp2/vrt/vita_rx_control.v
+++ /dev/null
@@ -1,231 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-module vita_rx_control
- #(parameter BASE=0,
- parameter WIDTH=32)
- (input clk, input reset, input clear,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
- input [63:0] vita_time,
- output overrun,
-
- // To vita_rx_framer
- output [5+64+WIDTH-1:0] sample_fifo_o,
- output sample_fifo_src_rdy_o,
- input sample_fifo_dst_rdy_i,
-
- // From DSP Core
- input [WIDTH-1:0] sample,
- output run,
- input strobe,
-
- output [31:0] debug_rx
- );
-
- // FIXME add TX Interruption (halt, pause, continue) functionality
-
- wire [63:0] new_time;
- wire [31:0] new_command;
- wire sc_pre1;
-
- wire [63:0] rcvtime_pre;
- reg [63:0] rcvtime;
- wire [27:0] numlines_pre;
- wire send_imm_pre, chain_pre, reload_pre, stop_pre;
- reg send_imm, chain, reload;
- wire read_ctrl, not_empty_ctrl, write_ctrl;
- reg sc_pre2;
- wire [33:0] fifo_line;
- reg [27:0] lines_left, lines_total;
- reg [2:0] ibs_state;
- wire now, early, late;
- wire sample_fifo_in_rdy;
-
- setting_reg #(.my_addr(BASE)) sr_cmd
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(new_command),.changed());
-
- setting_reg #(.my_addr(BASE+1)) sr_time_h
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(new_time[63:32]),.changed());
-
- setting_reg #(.my_addr(BASE+2)) sr_time_l
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(new_time[31:0]),.changed(sc_pre1));
-
- // FIFO to store commands sent from the settings bus
- always @(posedge clk)
- if(reset | clear)
- sc_pre2 <= 0;
- else
- sc_pre2 <= sc_pre1;
-
- assign write_ctrl = sc_pre1 & ~sc_pre2;
-
- wire [4:0] command_queue_len;
-
- fifo_short #(.WIDTH(96)) commandfifo
- (.clk(clk),.reset(reset),.clear(clear),
- .datain({new_command,new_time}), .src_rdy_i(write_ctrl), .dst_rdy_o(),
- .dataout({send_imm_pre,chain_pre,reload_pre,stop_pre,numlines_pre,rcvtime_pre}),
- .src_rdy_o(not_empty_ctrl), .dst_rdy_i(read_ctrl),
- .occupied(command_queue_len), .space() );
-
- reg [33:0] pkt_fifo_line;
-
- localparam IBS_IDLE = 0;
- localparam IBS_WAITING = 1;
- localparam IBS_RUNNING = 2;
- localparam IBS_OVERRUN = 4;
- localparam IBS_BROKENCHAIN = 5;
- localparam IBS_LATECMD = 6;
- localparam IBS_ZEROLEN = 7;
-
- wire signal_cmd_done = (lines_left == 1) & (~chain | (not_empty_ctrl & stop_pre));
- wire signal_overrun = (ibs_state == IBS_OVERRUN);
- wire signal_brokenchain = (ibs_state == IBS_BROKENCHAIN);
- wire signal_latecmd = (ibs_state == IBS_LATECMD);
- wire signal_zerolen = (ibs_state == IBS_ZEROLEN);
-
- // Buffer of samples for while we're writing the packet headers
- wire [4:0] flags = {signal_zerolen,signal_overrun,signal_brokenchain,signal_latecmd,signal_cmd_done};
-
- wire attempt_sample_write = ((run & strobe) | (ibs_state==IBS_OVERRUN) |
- (ibs_state==IBS_BROKENCHAIN) | (ibs_state==IBS_LATECMD) |
- (ibs_state==IBS_ZEROLEN));
-
- fifo_short #(.WIDTH(5+64+WIDTH)) rx_sample_fifo
- (.clk(clk),.reset(reset),.clear(clear),
- .datain({flags,vita_time,sample}), .src_rdy_i(attempt_sample_write), .dst_rdy_o(sample_fifo_in_rdy),
- .dataout(sample_fifo_o),
- .src_rdy_o(sample_fifo_src_rdy_o), .dst_rdy_i(sample_fifo_dst_rdy_i),
- .space(), .occupied() );
-
- // Inband Signalling State Machine
- time_compare
- time_compare (.time_now(vita_time), .trigger_time(rcvtime), .now(now), .early(early), .late(late));
-
- wire go_now = now | send_imm;
- wire full = ~sample_fifo_in_rdy;
-
- reg too_late;
-
- always @(posedge clk)
- if(reset | clear)
- too_late <= 0;
- else
- too_late <= late & ~send_imm;
-
- reg late_valid;
-
- always @(posedge clk)
- if(reset | clear)
- begin
- ibs_state <= IBS_IDLE;
- lines_left <= 0;
- lines_total <= 0;
- rcvtime <= 0;
- send_imm <= 0;
- chain <= 0;
- reload <= 0;
- late_valid <= 0;
- end
- else
- case(ibs_state)
- IBS_IDLE :
- if(not_empty_ctrl)
- begin
- lines_left <= numlines_pre;
- lines_total <= numlines_pre;
- rcvtime <= rcvtime_pre;
- late_valid <= 0;
- if(stop_pre)
- ibs_state <= IBS_ZEROLEN;
- else
- ibs_state <= IBS_WAITING;
- send_imm <= send_imm_pre;
- chain <= chain_pre;
- reload <= reload_pre;
- end
- IBS_WAITING :
- begin
- late_valid <= 1;
- if(late_valid)
- if(go_now)
- ibs_state <= IBS_RUNNING;
- else if(too_late)
- ibs_state <= IBS_LATECMD;
- end
- IBS_RUNNING :
- if(strobe)
- if(full)
- ibs_state <= IBS_OVERRUN;
- else
- begin
- lines_left <= lines_left - 1;
- if(lines_left == 1)
- if(~chain)
- ibs_state <= IBS_IDLE;
- else if(~not_empty_ctrl & reload)
- begin
- ibs_state <= IBS_RUNNING;
- lines_left <= lines_total;
- end
- else if(~not_empty_ctrl)
- ibs_state <= IBS_BROKENCHAIN;
- else
- begin
- lines_left <= numlines_pre;
- lines_total <= numlines_pre;
- rcvtime <= rcvtime_pre;
- send_imm <= send_imm_pre;
- chain <= chain_pre;
- reload <= reload_pre;
- if(stop_pre) // If we are told to stop here
- ibs_state <= IBS_IDLE;
- else
- ibs_state <= IBS_RUNNING;
- end
- end // else: !if(full)
- IBS_OVERRUN :
- if(sample_fifo_in_rdy)
- ibs_state <= IBS_IDLE;
- IBS_LATECMD :
- if(sample_fifo_in_rdy)
- ibs_state <= IBS_IDLE;
- IBS_BROKENCHAIN :
- if(sample_fifo_in_rdy)
- ibs_state <= IBS_IDLE;
- IBS_ZEROLEN :
- if(sample_fifo_in_rdy)
- ibs_state <= IBS_IDLE;
- endcase // case(ibs_state)
-
- assign overrun = (ibs_state == IBS_OVERRUN);
- assign run = (ibs_state == IBS_RUNNING);
-
- assign read_ctrl = ( (ibs_state == IBS_IDLE) | ((ibs_state == IBS_RUNNING) & strobe & ~full & (lines_left==1) & chain) )
- & not_empty_ctrl;
-
- assign debug_rx = { { ibs_state[2:0], command_queue_len },
- { 8'd0 },
- { go_now, too_late, run, strobe, read_ctrl, write_ctrl, 1'b0, ~not_empty_ctrl },
- { 2'b0, overrun, chain_pre, sample_fifo_in_rdy, attempt_sample_write, sample_fifo_src_rdy_o,sample_fifo_dst_rdy_i} };
-
-endmodule // vita_rx_control
diff --git a/fpga/usrp2/vrt/vita_rx_engine_glue.v b/fpga/usrp2/vrt/vita_rx_engine_glue.v
deleted file mode 100644
index 56447a7aa..000000000
--- a/fpga/usrp2/vrt/vita_rx_engine_glue.v
+++ /dev/null
@@ -1,95 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-//The following module is used to re-write receive packets to the host.
-//This module provides a packet-based ram interface for manipulating packets.
-//By default, this module uses the built-in 16 to 8 bit converter engine.
-
-module vita_rx_engine_glue
-#(
- //the dsp unit number: 0, 1, 2...
- parameter DSPNO = 0,
-
- //buffer size for ram interface engine
- parameter BUF_SIZE = 10,
-
- //base address for built-in settings registers used in this module
- parameter MAIN_SETTINGS_BASE = 0
-)
-(
- //control signals
- input clock, input reset, input clear,
-
- //main settings bus for built-in modules
- input set_stb_main, input [7:0] set_addr_main, input [31:0] set_data_main,
-
- //user settings bus, controlled through user setting regs API
- input set_stb_user, input [7:0] set_addr_user, input [31:0] set_data_user,
-
- //ram interface for engine
- output access_we,
- output access_stb,
- input access_ok,
- output access_done,
- output access_skip_read,
- output [BUF_SIZE-1:0] access_adr,
- input [BUF_SIZE-1:0] access_len,
- output [35:0] access_dat_o,
- input [35:0] access_dat_i,
-
- //debug output (optional)
- output [31:0] debug
-);
-
- generate
- if (DSPNO==0) begin
- `ifndef RX_ENG0_MODULE
- dspengine_16to8 #(.BASE(MAIN_SETTINGS_BASE), .BUF_SIZE(BUF_SIZE)) dspengine_16to8
- (.clk(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_main), .set_addr(set_addr_main), .set_data(set_data_main),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `else
- `RX_ENG0_MODULE #(.BUF_SIZE(BUF_SIZE)) rx_eng0_custom
- (.clock(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_user), .set_addr(set_addr_user), .set_data(set_data_user),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `endif
- end
- else begin
- `ifndef RX_ENG1_MODULE
- dspengine_16to8 #(.BASE(MAIN_SETTINGS_BASE), .BUF_SIZE(BUF_SIZE)) dspengine_16to8
- (.clk(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_main), .set_addr(set_addr_main), .set_data(set_data_main),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `else
- `RX_ENG1_MODULE #(.BUF_SIZE(BUF_SIZE)) rx_eng1_custom
- (.clock(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_user), .set_addr(set_addr_user), .set_data(set_data_user),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `endif
- end
- endgenerate
-
-endmodule //vita_rx_engine_glue
diff --git a/fpga/usrp2/vrt/vita_rx_framer.v b/fpga/usrp2/vrt/vita_rx_framer.v
deleted file mode 100644
index 6e4b8025d..000000000
--- a/fpga/usrp2/vrt/vita_rx_framer.v
+++ /dev/null
@@ -1,224 +0,0 @@
-//
-// Copyright 2011-2012 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-module vita_rx_framer
- #(parameter BASE=0,
- parameter MAXCHAN=1)
- (input clk, input reset, input clear,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
- // To FIFO interface of Buffer Pool
- output [35:0] data_o,
- input dst_rdy_i,
- output src_rdy_o,
-
- // From vita_rx_control
- input [5+64+(32*MAXCHAN)-1:0] sample_fifo_i,
- input sample_fifo_src_rdy_i,
- output sample_fifo_dst_rdy_o,
-
- output [31:0] debug_rx
- );
-
- localparam SAMP_WIDTH = 5+64+(32*MAXCHAN);
- reg [3:0] sample_phase;
- wire [3:0] numchan;
- wire [4:0] flags_fifo_o = sample_fifo_i[SAMP_WIDTH-1:SAMP_WIDTH-5];
- wire [63:0] vita_time_fifo_o = sample_fifo_i[SAMP_WIDTH-6:SAMP_WIDTH-69];
-
- reg [31:0] data_fifo_o;
-
- // The tools won't synthesize properly without this kludge because of the variable
- // parameter length
-
- wire [127:0] FIXED_WIDTH_KLUDGE = sample_fifo_i;
- always @*
- case(sample_phase)
- 4'd0 : data_fifo_o = FIXED_WIDTH_KLUDGE[31:0];
- 4'd1 : data_fifo_o = FIXED_WIDTH_KLUDGE[63:32];
- 4'd2 : data_fifo_o = FIXED_WIDTH_KLUDGE[95:64];
- 4'd3 : data_fifo_o = FIXED_WIDTH_KLUDGE[127:96];
- default : data_fifo_o = 32'hDEADBEEF;
- endcase // case (sample_phase)
-
- wire clear_pkt_count, pkt_fifo_rdy, sample_fifo_in_rdy;
-
- wire [31:0] vita_header, vita_streamid, vita_trailer;
- wire [15:0] samples_per_packet;
-
- reg [33:0] pkt_fifo_line;
- reg [3:0] vita_state;
- reg [15:0] sample_ctr;
- reg [3:0] pkt_count;
-
- wire [15:0] vita_pkt_len = samples_per_packet + 6;
- //wire [4:0] flags = {signal_zerolen,signal_overrun,signal_brokenchain,signal_latecmd,signal_cmd_done};
-
- setting_reg #(.my_addr(BASE+4)) sr_header
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(vita_header),.changed());
-
- setting_reg #(.my_addr(BASE+5)) sr_streamid
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(vita_streamid),.changed(clear_pkt_count));
-
- setting_reg #(.my_addr(BASE+6)) sr_trailer
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(vita_trailer),.changed());
-
- setting_reg #(.my_addr(BASE+7),.width(16)) sr_samples_per_pkt
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(samples_per_packet),.changed());
-
- assign numchan = 0;/*
- setting_reg #(.my_addr(BASE+8),.width(4), .at_reset(0)) sr_numchan
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(numchan),.changed());
- */
-
- // Output FIFO for packetized data
- localparam VITA_IDLE = 0;
- localparam VITA_HEADER = 1;
- localparam VITA_STREAMID = 2;
- localparam VITA_TICS = 3;
- localparam VITA_TICS2 = 4;
- localparam VITA_PAYLOAD = 5;
- localparam VITA_TRAILER = 6;
- localparam VITA_ERR_HEADER = 7; // All ERR at 4'b1000 or'ed with base
- localparam VITA_ERR_STREAMID = 8;
- localparam VITA_ERR_TICS = 9;
- localparam VITA_ERR_TICS2 = 10;
- localparam VITA_ERR_PAYLOAD = 11;
- localparam VITA_ERR_TRAILER = 12; // Extension context packets have no trailer
-
- always @(posedge clk)
- if(reset | clear | clear_pkt_count)
- pkt_count <= 0;
- else if((vita_state == VITA_TRAILER) & pkt_fifo_rdy)
- pkt_count <= pkt_count + 1;
-
- wire has_streamid = vita_header[28];
- wire has_trailer = vita_header[26];
- reg trl_eob;
-
- always @*
- case(vita_state)
- // Data packets are IF Data packets with or w/o streamid, no classid, with trailer
- VITA_HEADER : pkt_fifo_line <= {2'b01,3'b000,vita_header[28],2'b01,vita_header[25:24],
- vita_header[23:20],pkt_count[3:0],vita_pkt_len[15:0]};
- VITA_STREAMID : pkt_fifo_line <= {2'b00,vita_streamid};
- VITA_TICS : pkt_fifo_line <= {2'b00,vita_time_fifo_o[63:32]};
- VITA_TICS2 : pkt_fifo_line <= {2'b00,vita_time_fifo_o[31:0]};
- VITA_PAYLOAD : pkt_fifo_line <= {2'b00,data_fifo_o};
- VITA_TRAILER : pkt_fifo_line <= {2'b10,vita_trailer[31:21],1'b1,vita_trailer[19:9],trl_eob,8'd0};
-
- // Error packets are Extension Context packets, which have no trailer
- VITA_ERR_HEADER : pkt_fifo_line <= {2'b01,4'b0101,4'b0000,vita_header[23:20],pkt_count,16'd5};
- VITA_ERR_STREAMID : pkt_fifo_line <= {2'b00,vita_streamid};
- VITA_ERR_TICS : pkt_fifo_line <= {2'b00,vita_time_fifo_o[63:32]};
- VITA_ERR_TICS2 : pkt_fifo_line <= {2'b00,vita_time_fifo_o[31:0]};
- VITA_ERR_PAYLOAD : pkt_fifo_line <= {2'b10,27'd0,flags_fifo_o};
- //VITA_ERR_TRAILER : pkt_fifo_line <= {2'b11,vita_trailer};
-
- default : pkt_fifo_line <= 34'h0_FFFF_FFFF;
- endcase // case (vita_state)
-
- always @(posedge clk)
- if(reset | clear)
- begin
- vita_state <= VITA_IDLE;
- sample_ctr <= 0;
- sample_phase <= 0;
- end
- else
- if(vita_state==VITA_IDLE)
- begin
- sample_ctr <= 1;
- sample_phase <= 0;
- if(sample_fifo_src_rdy_i)
- if(|flags_fifo_o[4:1])
- vita_state <= VITA_ERR_HEADER;
- else
- vita_state <= VITA_HEADER;
- end
- else if(pkt_fifo_rdy)
- case(vita_state)
- VITA_HEADER :
- if(has_streamid)
- vita_state <= VITA_STREAMID;
- else
- vita_state <= VITA_TICS;
- VITA_PAYLOAD :
- if(sample_fifo_src_rdy_i)
- begin
- if(sample_phase == numchan)
- begin
- sample_phase <= 0;
- sample_ctr <= sample_ctr + 1;
- trl_eob <= flags_fifo_o[0];
- if(sample_ctr == samples_per_packet)
- vita_state <= VITA_TRAILER;
- if(|flags_fifo_o) // end early if any flag is set
- vita_state <= VITA_TRAILER;
- end
- else
- sample_phase <= sample_phase + 1;
- end // if (sample_fifo_src_rdy_i)
- VITA_ERR_PAYLOAD :
- vita_state <= VITA_IDLE;
- VITA_TRAILER :
- vita_state <= VITA_IDLE;
- default :
- vita_state <= vita_state + 1;
- endcase // case (vita_state)
-
- reg req_write_pkt_fifo;
- always @*
- case(vita_state)
- VITA_IDLE :
- req_write_pkt_fifo <= 0;
- VITA_HEADER, VITA_STREAMID, VITA_TICS, VITA_TICS2, VITA_TRAILER :
- req_write_pkt_fifo <= 1;
- VITA_PAYLOAD :
- // Write if sample ready and no error flags
- req_write_pkt_fifo <= (sample_fifo_src_rdy_i & ~|flags_fifo_o[4:1]);
- VITA_ERR_HEADER, VITA_ERR_STREAMID, VITA_ERR_TICS, VITA_ERR_TICS2, VITA_ERR_PAYLOAD :
- req_write_pkt_fifo <= 1;
- default :
- req_write_pkt_fifo <= 0;
- endcase // case (vita_state)
-
- //wire req_write_pkt_fifo = (vita_state != VITA_IDLE) & (sample_fifo_src_rdy_i | (vita_state != VITA_PAYLOAD));
-
- // Short FIFO to buffer between us and the FIFOs outside
- fifo_short #(.WIDTH(34)) rx_pkt_fifo
- (.clk(clk), .reset(reset), .clear(clear),
- .datain(pkt_fifo_line), .src_rdy_i(req_write_pkt_fifo), .dst_rdy_o(pkt_fifo_rdy),
- .dataout(data_o[33:0]), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i),
- .space(),.occupied() );
-
- assign data_o[35:34] = 2'b00; // Always write full lines
- assign sample_fifo_dst_rdy_o = pkt_fifo_rdy &
- ( ((vita_state==VITA_PAYLOAD) &
- (sample_phase == numchan) &
- ~|flags_fifo_o[4:1]) |
- (vita_state==VITA_ERR_PAYLOAD));
-
- assign debug_rx = vita_state;
-
-endmodule // vita_rx_framer
diff --git a/fpga/usrp2/vrt/vita_rx_tb.v b/fpga/usrp2/vrt/vita_rx_tb.v
deleted file mode 100644
index 8cd08a972..000000000
--- a/fpga/usrp2/vrt/vita_rx_tb.v
+++ /dev/null
@@ -1,246 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-
-module vita_rx_tb;
-
- localparam DECIM = 8'd4;
- localparam MAXCHAN=1;
- localparam NUMCHAN=1;
-
- reg clk = 0;
- reg reset = 1;
-
- initial #1000 reset = 0;
- always #50 clk = ~clk;
-
- initial $dumpfile("vita_rx_tb.vcd");
- initial $dumpvars(0,vita_rx_tb);
-
- wire [(MAXCHAN*32)-1:0] sample;
- wire strobe, run;
- wire [35:0] data_o;
- wire src_rdy;
- reg dst_rdy = 1;
- wire [63:0] vita_time;
-
- reg set_stb = 0;
- reg [7:0] set_addr;
- reg [31:0] set_data;
- wire set_stb_dsp;
- wire [7:0] set_addr_dsp;
- wire [31:0] set_data_dsp;
-
- /*
- settings_bus_crossclock settings_bus_xclk_dsp
- (.clk_i(clk), .rst_i(reset), .set_stb_i(set_stb), .set_addr_i(set_addr), .set_data_i(set_data),
- .clk_o(clk), .rst_o(reset), .set_stb_o(set_stb_dsp), .set_addr_o(set_addr_dsp), .set_data_o(set_data_dsp));
- */
-
- wire sample_dst_rdy, sample_src_rdy;
- //wire [99:0] sample_data_o;
- wire [64+5+(MAXCHAN*32)-1:0] sample_data_o;
-
- vita_rx_control #(.BASE(0), .WIDTH(32*MAXCHAN)) vita_rx_control
- (.clk(clk), .reset(reset), .clear(0),
- .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
- .vita_time(vita_time), .overrun(overrun),
- .sample_fifo_o(sample_data_o), .sample_fifo_dst_rdy_i(sample_dst_rdy), .sample_fifo_src_rdy_o(sample_src_rdy),
- .sample(sample), .run(run), .strobe(strobe));
-
- vita_rx_framer #(.BASE(0), .MAXCHAN(MAXCHAN)) vita_rx_framer
- (.clk(clk), .reset(reset), .clear(0),
- .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
- .data_o(data_o), .dst_rdy_i(dst_rdy), .src_rdy_o(src_rdy),
- .sample_fifo_i(sample_data_o), .sample_fifo_dst_rdy_o(sample_dst_rdy), .sample_fifo_src_rdy_i(sample_src_rdy),
- .fifo_occupied(), .fifo_full(), .fifo_empty() );
-
- rx_dsp_model rx_dsp_model
- (.clk(clk), .reset(reset), .run(run), .decim(DECIM), .strobe(strobe), .sample(sample[31:0]));
-
- generate
- if(MAXCHAN>1)
- assign sample[(MAXCHAN*32)-1:32] = 0;
- endgenerate
-
- time_64bit #(.TICKS_PER_SEC(120000000), .BASE(0)) time_64bit
- (.clk(clk), .rst(reset),
- .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
- .pps(0), .vita_time(vita_time));
-
- always @(posedge clk)
- if(src_rdy & dst_rdy)
- begin
- if(data_o[32] & ~data_o[33])
- begin
- $display("RX-PKT-START %d",$time);
- $display(" RX-PKT-DAT %x",data_o[31:0]);
- end
- else if(data_o[32] & data_o[33])
- begin
- $display(" RX-PKT-DAT %x -- With ERR",data_o[31:0]);
- $display("RX-PKT-ERR %d",$time);
- end
- else if(~data_o[32] & data_o[33])
- begin
- $display(" RX-PKT-DAT %x",data_o[31:0]);
- $display("RX-PKT-END %d",$time);
- end
- else
- $display(" RX-PKT DAT %x",data_o[31:0]);
- end
-
- initial
- begin
- @(negedge reset);
- @(posedge clk);
- write_setting(4,32'h15F00000); // VITA header
- write_setting(5,32'hF00D1234); // VITA streamid
- write_setting(6,32'hE0000000); // VITA trailer
- write_setting(7,8); // Samples per VITA packet
- write_setting(8,NUMCHAN); // Vector length
-
- queue_rx_cmd(1,1,0,10,32'h0,32'h0); // send imm, single packet
- #10000;
-
- queue_rx_cmd(1,0,0,0,32'h0,32'h0); // send imm, single packet
- //queue_rx_cmd(1,1,0,0,32'h0,32'h0); // send imm, single packet
-
- //queue_rx_cmd(1,0,0,0,32'h0,32'h0); // send imm, single packet
-
- /*
- queue_rx_cmd(1,0,0,8,32'h0,32'h0); // send imm, single packet
- queue_rx_cmd(1,0,0,16,32'h0,32'h0); // send imm, 2 packets worth
- queue_rx_cmd(1,0,0,7,32'h0,32'h0); // send imm, 1 short packet worth
- queue_rx_cmd(1,0,0,9,32'h0,32'h0); // send imm, just longer than 1 packet
-
- queue_rx_cmd(1,1,0,16,32'h0,32'h0); // chained
- queue_rx_cmd(0,0,0,8,32'h0,32'h0); // 2nd in chain
-
- queue_rx_cmd(1,1,0,17,32'h0,32'h0); // chained, odd length
- queue_rx_cmd(0,0,0,9,32'h0,32'h0); // 2nd in chain, also odd length
-
- queue_rx_cmd(0,0,0,8,32'h0,32'h340); // send at, on time
- queue_rx_cmd(0,0,0,8,32'h0,32'h100); // send at, but late
-
- #100000;
- $display("\nChained, break chain\n");
- queue_rx_cmd(1,1,0,8,32'h0,32'h0); // chained, but break chain
- #100000;
- $display("\nSingle packet\n");
- queue_rx_cmd(1,0,0,8,32'h0,32'h0); // send imm, single packet
- #100000;
- $display("\nEnd chain with zero samples, shouldn't error\n");
- queue_rx_cmd(1,1,0,8,32'h0,32'h0); // chained
- queue_rx_cmd(0,0,0,0,32'h0,32'h0); // end chain with zero samples, should keep us out of error
- #100000;
-
- $display("\nEnd chain with zero samples on odd-length, shouldn't error\n");
- queue_rx_cmd(1,1,0,14,32'h0,32'h0); // chained
- queue_rx_cmd(0,0,0,0,32'h0,32'h0); // end chain with zero samples, should keep us out of error
- #100000;
- $display("Should have gotten 14 samples and EOF by now\n");
-
- queue_rx_cmd(1,1,0,9,32'h0,32'h0); // chained, but break chain, odd length
- #100000;
- dst_rdy <= 0; // stop pulling out of fifo so we can get an overrun
- queue_rx_cmd(1,0,0,100,32'h0,32'h0); // long enough to fill the fifos
- queue_rx_cmd(1,0,0,5,32'h0,32'h0); // this command waits until the previous error packet is sent
- #100000;
- dst_rdy <= 1; // restart the reads so we can see what we got
- #100000;
- dst_rdy <= 0; // stop pulling out of fifo so we can get an overrun
- queue_rx_cmd(1,1,0,100,32'h0,32'h0); // long enough to fill the fifos
- //queue_rx_cmd(1,0,0,5,32'h0,32'h0); // this command waits until the previous error packet is sent
- #100000;
- @(posedge clk);
- dst_rdy <= 1;
- */
- #100000 $finish;
- end
-
- task write_setting;
- input [7:0] addr;
- input [31:0] data;
- begin
- set_stb <= 0;
- @(posedge clk);
- set_addr <= addr;
- set_data <= data;
- set_stb <= 1;
- @(posedge clk);
- set_stb <= 0;
- end
- endtask // write_setting
-
- task queue_rx_cmd;
- input send_imm;
- input chain;
- input reload;
- input [28:0] lines;
- input [31:0] secs;
- input [31:0] tics;
- begin
- write_setting(0,{send_imm,chain,reload,lines});
- write_setting(1,secs);
- write_setting(2,tics);
- end
- endtask // queue_rx_cmd
-
-endmodule // rx_control_tb
-
-module rx_dsp_model
- (input clk, input reset,
- input run,
- input [7:0] decim,
- output strobe,
- output [31:0] sample);
-
- reg [15:0] pktnum = 0;
- reg [15:0] counter = 0;
-
- reg run_d1;
- always @(posedge clk) run_d1 <= run;
-
- always @(posedge clk)
- if(run & ~run_d1)
- begin
- counter <= 0;
- pktnum <= pktnum + 1;
- end
- else if(run & strobe)
- counter <= counter + 1;
-
- assign sample = {pktnum,counter};
-
- reg [7:0] stb_ctr = 0;
-
- always @(posedge clk)
- if(reset)
- stb_ctr <= 0;
- else if(run & ~run_d1)
- stb_ctr <= 1;
- else if(run)
- if(stb_ctr == decim-1)
- stb_ctr <= 0;
- else
- stb_ctr <= stb_ctr + 1;
-
- assign strobe = stb_ctr == decim-1;
-
-endmodule // rx_dsp_model
diff --git a/fpga/usrp2/vrt/vita_tx.build b/fpga/usrp2/vrt/vita_tx.build
deleted file mode 100755
index e7106aa10..000000000
--- a/fpga/usrp2/vrt/vita_tx.build
+++ /dev/null
@@ -1 +0,0 @@
-iverilog -Wimplict -Wportbind -y ../sdr_lib -y ../models -y . -y ../control_lib/ -y ../fifo -y ../coregen -y /opt/Xilinx/10.1/ISE/verilog/src/XilinxCoreLib -y /opt/Xilinx/10.1/ISE/verilog/src/unisims/ -y ../timing -o vita_tx_tb vita_tx_tb.v
diff --git a/fpga/usrp2/vrt/vita_tx_chain.v b/fpga/usrp2/vrt/vita_tx_chain.v
deleted file mode 100644
index 82a43d57a..000000000
--- a/fpga/usrp2/vrt/vita_tx_chain.v
+++ /dev/null
@@ -1,162 +0,0 @@
-//
-// Copyright 2011-2012 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-module vita_tx_chain
- #(parameter BASE=0,
- parameter FIFOSIZE=10,
- parameter POST_ENGINE_FIFOSIZE=10,
- parameter REPORT_ERROR=0,
- parameter DO_FLOW_CONTROL=0,
- parameter PROT_ENG_FLAGS=0,
- parameter USE_TRANS_HEADER=0,
- parameter DSP_NUMBER=0)
- (input clk, input reset,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
- input set_stb_user, input [7:0] set_addr_user, input [31:0] set_data_user,
- input [63:0] vita_time,
- input [35:0] tx_data_i, input tx_src_rdy_i, output tx_dst_rdy_o,
- output [35:0] err_data_o, output err_src_rdy_o, input err_dst_rdy_i,
- output [31:0] sample, input strobe,
- output underrun, output run, output clear_o,
- output [31:0] debug);
-
- localparam MAXCHAN = 1;
- localparam FIFOWIDTH = 5+64+16+(32*MAXCHAN);
-
- wire [FIFOWIDTH-1:0] tx1_data;
- wire tx1_src_rdy, tx1_dst_rdy;
- wire [31:0] streamid, message;
- wire trigger, sent;
- wire [31:0] debug_vtc, debug_vtd, debug_tx_dsp;
-
- wire error, packet_consumed, ack;
- wire [31:0] error_code;
- wire clear_seqnum;
- wire [31:0] current_seqnum;
-
- wire clear, flush;
- assign clear_o = clear;
- assign underrun = error;
- assign message = error_code;
-
- setting_reg #(.my_addr(BASE+0), .width(1)) sr
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(flush),.changed(clear));
-
- setting_reg #(.my_addr(BASE+2), .at_reset(0)) sr_streamid
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(streamid),.changed(clear_seqnum));
-
- //flush control - full rate vacuum of input until flush cleared
- wire tx_dst_rdy_int, tx_src_rdy_int;
- wire [35:0] tx_data_int;
- valve36 flusher_valve
- (.clk(clk), .reset(reset), .clear(clear & flush), .shutoff(flush),
- .data_i(tx_data_i), .src_rdy_i(tx_src_rdy_i), .dst_rdy_o(tx_dst_rdy_o),
- .data_o(tx_data_int), .src_rdy_o(tx_src_rdy_int), .dst_rdy_i(tx_dst_rdy_int));
-
- wire [35:0] tx_data_int1;
- wire tx_src_rdy_int1, tx_dst_rdy_int1;
-
- generate
- if (FIFOSIZE==0) begin
- assign tx_data_int1 = tx_data_int;
- assign tx_src_rdy_int1 = tx_src_rdy_int;
- assign tx_dst_rdy_int = tx_dst_rdy_int1;
- end
- else begin
- wire [FIFOSIZE-1:0] access_adr, access_len;
- wire access_we, access_stb, access_ok, access_done, access_skip_read;
- wire [35:0] dsp_to_buf, buf_to_dsp;
- wire [35:0] tx_data_int0;
- wire tx_src_rdy_int0, tx_dst_rdy_int0;
-
- double_buffer #(.BUF_SIZE(FIFOSIZE)) db
- (.clk(clk),.reset(reset),.clear(clear),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(dsp_to_buf), .access_dat_o(buf_to_dsp),
-
- .data_i(tx_data_int), .src_rdy_i(tx_src_rdy_int), .dst_rdy_o(tx_dst_rdy_int),
- .data_o(tx_data_int0), .src_rdy_o(tx_src_rdy_int0), .dst_rdy_i(tx_dst_rdy_int0));
-
- vita_tx_engine_glue #(.DSPNO(DSP_NUMBER), .MAIN_SETTINGS_BASE(BASE+1), .BUF_SIZE(FIFOSIZE), .HEADER_OFFSET(USE_TRANS_HEADER)) dspengine_tx
- (.clock(clk),.reset(reset),.clear(clear),
- .set_stb_main(set_stb), .set_addr_main(set_addr), .set_data_main(set_data),
- .set_stb_user(set_stb_user), .set_addr_user(set_addr_user), .set_data_user(set_data_user),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(buf_to_dsp), .access_dat_o(dsp_to_buf));
-
- fifo_cascade #(.WIDTH(36), .SIZE(POST_ENGINE_FIFOSIZE)) post_engine_buffering(
- .clk(clk), .reset(reset), .clear(clear),
- .datain(tx_data_int0), .src_rdy_i(tx_src_rdy_int0), .dst_rdy_o(tx_dst_rdy_int0),
- .dataout(tx_data_int1), .src_rdy_o(tx_src_rdy_int1), .dst_rdy_i(tx_dst_rdy_int1));
-
- end
- endgenerate
-
- vita_tx_deframer #(.BASE(BASE),
- .MAXCHAN(MAXCHAN),
- .USE_TRANS_HEADER(USE_TRANS_HEADER))
- vita_tx_deframer
- (.clk(clk), .reset(reset), .clear(clear), .clear_seqnum(clear_seqnum),
- .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
- .data_i(tx_data_int1), .src_rdy_i(tx_src_rdy_int1), .dst_rdy_o(tx_dst_rdy_int1),
- .sample_fifo_o(tx1_data), .sample_fifo_src_rdy_o(tx1_src_rdy), .sample_fifo_dst_rdy_i(tx1_dst_rdy),
- .current_seqnum(current_seqnum),
- .debug(debug_vtd) );
-
- vita_tx_control #(.BASE(BASE), .WIDTH(32*MAXCHAN)) vita_tx_control
- (.clk(clk), .reset(reset), .clear(clear),
- .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
- .vita_time(vita_time), .error(error), .ack(ack), .error_code(error_code),
- .sample_fifo_i(tx1_data), .sample_fifo_src_rdy_i(tx1_src_rdy), .sample_fifo_dst_rdy_o(tx1_dst_rdy),
- .sample(sample), .run(run), .strobe(strobe), .packet_consumed(packet_consumed),
- .debug(debug_vtc) );
-
- wire [35:0] flow_data, err_data_int;
- wire flow_src_rdy, flow_dst_rdy, err_src_rdy_int, err_dst_rdy_int;
-
- gen_context_pkt #(.PROT_ENG_FLAGS(PROT_ENG_FLAGS),.DSP_NUMBER(DSP_NUMBER)) gen_flow_pkt
- (.clk(clk), .reset(reset), .clear(clear),
- .trigger(trigger & (DO_FLOW_CONTROL==1)), .sent(),
- .streamid(streamid), .vita_time(vita_time), .message(32'd0),
- .seqnum(current_seqnum),
- .data_o(flow_data), .src_rdy_o(flow_src_rdy), .dst_rdy_i(flow_dst_rdy));
- trigger_context_pkt #(.BASE(BASE)) trigger_context_pkt
- (.clk(clk), .reset(reset), .clear(clear),
- .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
- .packet_consumed(packet_consumed), .trigger(trigger));
-
- gen_context_pkt #(.PROT_ENG_FLAGS(PROT_ENG_FLAGS),.DSP_NUMBER(DSP_NUMBER)) gen_tx_err_pkt
- (.clk(clk), .reset(reset), .clear(clear),
- .trigger((error|ack) & (REPORT_ERROR==1)), .sent(),
- .streamid(streamid), .vita_time(vita_time), .message(message),
- .seqnum(current_seqnum),
- .data_o(err_data_int), .src_rdy_o(err_src_rdy_int), .dst_rdy_i(err_dst_rdy_int));
-
- assign debug = debug_vtc | debug_vtd;
-
- fifo36_mux #(.prio(1)) mux_err_and_flow // Priority to err messages
- (.clk(clk), .reset(reset), .clear(0), // Don't clear this or it could get clogged
- .data0_i(err_data_int), .src0_rdy_i(err_src_rdy_int), .dst0_rdy_o(err_dst_rdy_int),
- .data1_i(flow_data), .src1_rdy_i(flow_src_rdy), .dst1_rdy_o(flow_dst_rdy),
- .data_o(err_data_o), .src_rdy_o(err_src_rdy_o), .dst_rdy_i(err_dst_rdy_i));
-
-endmodule // vita_tx_chain
diff --git a/fpga/usrp2/vrt/vita_tx_control.v b/fpga/usrp2/vrt/vita_tx_control.v
deleted file mode 100644
index c3ce2b96a..000000000
--- a/fpga/usrp2/vrt/vita_tx_control.v
+++ /dev/null
@@ -1,238 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-module vita_tx_control
- #(parameter BASE=0,
- parameter WIDTH=32)
- (input clk, input reset, input clear,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
- input [63:0] vita_time,
- output error, output ack,
- output reg [31:0] error_code,
- output reg packet_consumed,
-
- // From vita_tx_deframer
- input [5+64+16+WIDTH-1:0] sample_fifo_i,
- input sample_fifo_src_rdy_i,
- output sample_fifo_dst_rdy_o,
-
- // To DSP Core
- output [WIDTH-1:0] sample,
- output reg run,
- input strobe,
-
- output [31:0] debug
- );
-
- wire [63:0] send_time = sample_fifo_i[63:0];
- wire [15:0] seqnum = sample_fifo_i[79:64];
- wire eop = sample_fifo_i[80];
- wire eob = sample_fifo_i[81];
- wire sob = sample_fifo_i[82];
- wire send_at = sample_fifo_i[83];
- wire seqnum_err = sample_fifo_i[84];
-
- wire now, early, late, too_early;
-
- time_compare
- time_compare (.time_now(vita_time), .trigger_time(send_time),
- .now(now), .early(early), .late(late), .too_early(too_early));
-
- reg late_qual, late_del;
-
- always @(posedge clk)
- if(reset | clear)
- late_del <= 0;
- else
- late_del <= late;
-
- always @(posedge clk)
- if(reset | clear)
- late_qual <= 0;
- else
- late_qual <= (sample_fifo_src_rdy_i & ~sample_fifo_dst_rdy_o);
-
- localparam IBS_IDLE = 0;
- localparam IBS_RUN = 1; // FIXME do we need this?
- localparam IBS_CONT_BURST = 2;
- localparam IBS_ERROR = 3;
- localparam IBS_ERROR_DONE = 4;
- localparam IBS_ERROR_WAIT = 5;
-
- wire [31:0] CODE_EOB_ACK = {seqnum,16'd1};
- wire [31:0] CODE_UNDERRUN = {seqnum,16'd2};
- wire [31:0] CODE_SEQ_ERROR = {seqnum,16'd4};
- wire [31:0] CODE_TIME_ERROR = {seqnum,16'd8};
- wire [31:0] CODE_UNDERRUN_MIDPKT = {seqnum,16'd16};
- wire [31:0] CODE_SEQ_ERROR_MIDBURST = {seqnum,16'd32};
-
- reg [2:0] ibs_state;
-
- wire [31:0] error_policy;
- setting_reg #(.my_addr(BASE+3)) sr_error_policy
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(error_policy),.changed());
-
- wire policy_wait = error_policy[0];
- wire policy_next_packet = error_policy[1];
- wire policy_next_burst = error_policy[2];
- reg send_error, send_ack;
-
- always @(posedge clk)
- if(reset | clear)
- begin
- ibs_state <= IBS_IDLE;
- send_error <= 0;
- send_ack <= 0;
- error_code <= 0;
- end
- else
- case(ibs_state)
- IBS_IDLE :
- if(sample_fifo_src_rdy_i)
- if(seqnum_err)
- begin
- ibs_state <= IBS_ERROR;
- error_code <= CODE_SEQ_ERROR;
- send_error <= 1;
- end
- else if(~send_at | now)
- ibs_state <= IBS_RUN;
- else if((late_qual & late_del) | too_early)
- begin
- ibs_state <= IBS_ERROR;
- error_code <= CODE_TIME_ERROR;
- send_error <= 1;
- end
-
- IBS_RUN :
- if(strobe)
- if(~sample_fifo_src_rdy_i)
- begin
- ibs_state <= IBS_ERROR;
- error_code <= CODE_UNDERRUN_MIDPKT;
- send_error <= 1;
- end
- else if(eop)
- if(eob)
- begin
- ibs_state <= IBS_ERROR_DONE; // Not really an error
- error_code <= CODE_EOB_ACK;
- send_ack <= 1;
- end
- else
- ibs_state <= IBS_CONT_BURST;
-
- IBS_CONT_BURST :
- if(strobe)
- begin
- if(policy_next_packet)
- ibs_state <= IBS_ERROR_DONE;
- else if(policy_wait)
- ibs_state <= IBS_ERROR_WAIT;
- else
- ibs_state <= IBS_ERROR;
- error_code <= CODE_UNDERRUN;
- send_error <= 1;
- end
- else if(sample_fifo_src_rdy_i)
- if(seqnum_err)
- begin
- ibs_state <= IBS_ERROR;
- error_code <= CODE_SEQ_ERROR_MIDBURST;
- send_error <= 1;
- end
- else
- ibs_state <= IBS_RUN;
-
- IBS_ERROR :
- begin
- send_error <= 0;
- if(sample_fifo_src_rdy_i & eop)
- if(policy_next_packet | (policy_next_burst & eob))
- ibs_state <= IBS_IDLE;
- else if(policy_wait)
- ibs_state <= IBS_ERROR_WAIT;
- end
-
- IBS_ERROR_DONE :
- begin
- send_error <= 0;
- send_ack <= 0;
- ibs_state <= IBS_IDLE;
- end
-
- IBS_ERROR_WAIT :
- send_error <= 0;
- endcase // case (ibs_state)
-
-
- assign sample_fifo_dst_rdy_o = (ibs_state == IBS_ERROR) | (strobe & (ibs_state == IBS_RUN)); // FIXME also cleanout
-
- //register the output sample
- reg [31:0] sample_held;
- assign sample = sample_held;
- always @(posedge clk)
- if(reset | clear)
- sample_held <= 0;
- else if (~run)
- sample_held <= 0;
- else if (strobe)
- sample_held <= sample_fifo_i[5+64+16+WIDTH-1:5+64+16];
-
- assign error = send_error;
- assign ack = send_ack;
-
- localparam MAX_IDLE = 1000000;
- // approx 10 ms timeout with a 100 MHz clock, but burning samples will slow that down
- reg [19:0] countdown;
-
- always @(posedge clk)
- if(reset | clear)
- begin
- run <= 0;
- countdown <= 0;
- end
- else
- if (ibs_state == IBS_RUN)
- if(eob & eop & strobe & sample_fifo_src_rdy_i)
- run <= 0;
- else
- begin
- run <= 1;
- countdown <= MAX_IDLE;
- end
- else
- if (countdown == 0)
- run <= 0;
- else
- countdown <= countdown - 1;
-
- always @(posedge clk)
- if(reset | clear)
- packet_consumed <= 0;
- else
- packet_consumed <= eop & sample_fifo_src_rdy_i & sample_fifo_dst_rdy_o;
-
- assign debug = { { now,late_qual,late_del,ack,eop,eob,sob,send_at },
- { sample_fifo_src_rdy_i, sample_fifo_dst_rdy_o, strobe, run, error, ibs_state[2:0] },
- { 8'b0 },
- { 8'b0 } };
-
-endmodule // vita_tx_control
diff --git a/fpga/usrp2/vrt/vita_tx_deframer.v b/fpga/usrp2/vrt/vita_tx_deframer.v
deleted file mode 100644
index ed3916311..000000000
--- a/fpga/usrp2/vrt/vita_tx_deframer.v
+++ /dev/null
@@ -1,261 +0,0 @@
-//
-// Copyright 2011-2012 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-module vita_tx_deframer
- #(parameter BASE=0,
- parameter MAXCHAN=1,
- parameter USE_TRANS_HEADER=0)
- (input clk, input reset, input clear, input clear_seqnum,
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
-
- // To FIFO interface of Buffer Pool
- input [35:0] data_i,
- input src_rdy_i,
- output dst_rdy_o,
-
- output [5+64+16+(32*MAXCHAN)-1:0] sample_fifo_o,
- output sample_fifo_src_rdy_o,
- input sample_fifo_dst_rdy_i,
-
- output [31:0] current_seqnum,
-
- // FIFO Levels
- output [15:0] fifo_occupied,
- output fifo_full,
- output fifo_empty,
- output [31:0] debug
- );
-
- localparam FIFOWIDTH = 5+64+16+(32*MAXCHAN);
-
- wire [1:0] numchan = 0;/*
- setting_reg #(.my_addr(BASE), .at_reset(0), .width(2)) sr_numchan
- (.clk(clk),.rst(reset),.strobe(set_stb),.addr(set_addr),
- .in(set_data),.out(numchan),.changed());
- */
-
- reg [3:0] vita_state;
- wire has_streamid, has_classid, has_secs, has_tics, has_trailer;
- assign has_streamid = (data_i[31:28]==4'b0001);
- assign has_classid = data_i[27];
- assign has_secs = ~(data_i[23:22]==2'b00);
- assign has_tics = ~(data_i[21:20]==2'b00);
- assign has_trailer = data_i[26];
- wire is_sob = data_i[25];
- wire is_eob = data_i[24];
- wire eof = data_i[33];
- reg has_streamid_reg, has_classid_reg, has_secs_reg, has_tics_reg;
- reg has_trailer_reg, is_sob_reg, is_eob_reg;
-
- reg [15:0] pkt_len;
- reg [1:0] vector_phase;
- wire line_done;
-
- wire [31:0] seqnum = data_i;
- reg [31:0] seqnum_reg;
- wire [31:0] next_seqnum = seqnum_reg + 32'd1;
- wire [3:0] vita_seqnum = data_i[19:16];
- reg [3:0] vita_seqnum_reg;
- wire [3:0] next_vita_seqnum = vita_seqnum_reg[3:0] + 4'd1;
- reg seqnum_err;
-
- assign current_seqnum = seqnum_reg;
-
- // Output FIFO for packetized data
- localparam VITA_TRANS_HEADER = 0;
- localparam VITA_HEADER = 1;
- localparam VITA_STREAMID = 2;
- localparam VITA_CLASSID = 3;
- localparam VITA_CLASSID2 = 4;
- localparam VITA_SECS = 5;
- localparam VITA_TICS = 6;
- localparam VITA_TICS2 = 7;
- localparam VITA_PAYLOAD = 8;
- localparam VITA_TRAILER = 10;
- localparam VITA_DUMP = 11;
-
- wire [15:0] hdr_len = 2 + has_streamid_reg + has_classid_reg + has_classid_reg + has_secs_reg +
- has_tics_reg + has_tics_reg + has_trailer_reg;
-
- wire vita_eof = (pkt_len==hdr_len);
- wire eop = eof | vita_eof; // FIXME would ignoring eof allow larger VITA packets?
- wire fifo_space;
-
- always @(posedge clk)
- if(reset | clear | clear_seqnum)
- begin
- seqnum_reg <= 32'hFFFF_FFFF;
- vita_seqnum_reg <= 4'hF;
- end
- else
- begin
- if((vita_state==VITA_TRANS_HEADER) & src_rdy_i)
- seqnum_reg <= seqnum;
- if((vita_state==VITA_HEADER) & src_rdy_i)
- vita_seqnum_reg <= vita_seqnum;
- end // else: !if(reset | clear_seqnum)
-
- always @(posedge clk)
- if(reset | clear)
- begin
- vita_state <= (USE_TRANS_HEADER==1) ? VITA_TRANS_HEADER : VITA_HEADER;
- {has_streamid_reg, has_classid_reg, has_secs_reg, has_tics_reg, has_trailer_reg, is_sob_reg, is_eob_reg}
- <= 0;
- seqnum_err <= 0;
- end
- else if(src_rdy_i & dst_rdy_o) begin //valid read
- case(vita_state)
- VITA_TRANS_HEADER :
- begin
- seqnum_err <= ~(seqnum == next_seqnum);
- vita_state <= VITA_HEADER;
- end
- VITA_HEADER :
- begin
- {has_streamid_reg, has_classid_reg, has_secs_reg, has_tics_reg, has_trailer_reg, is_sob_reg, is_eob_reg}
- <= {has_streamid, has_classid, has_secs, has_tics, has_trailer, is_sob, is_eob};
- pkt_len <= data_i[15:0];
- vector_phase <= 0;
- if(has_streamid)
- vita_state <= VITA_STREAMID;
- else if(has_classid)
- vita_state <= VITA_CLASSID;
- else if(has_secs)
- vita_state <= VITA_SECS;
- else if(has_tics)
- vita_state <= VITA_TICS;
- else
- vita_state <= VITA_PAYLOAD;
- seqnum_err <= seqnum_err | ~(vita_seqnum == next_vita_seqnum);
- end // case: VITA_HEADER
- VITA_STREAMID :
- if(has_classid_reg)
- vita_state <= VITA_CLASSID;
- else if(has_secs_reg)
- vita_state <= VITA_SECS;
- else if(has_tics_reg)
- vita_state <= VITA_TICS;
- else
- vita_state <= VITA_PAYLOAD;
- VITA_CLASSID :
- vita_state <= VITA_CLASSID2;
- VITA_CLASSID2 :
- if(has_secs_reg)
- vita_state <= VITA_SECS;
- else if(has_tics_reg)
- vita_state <= VITA_TICS;
- else
- vita_state <= VITA_PAYLOAD;
- VITA_SECS :
- if(has_tics_reg)
- vita_state <= VITA_TICS;
- else
- vita_state <= VITA_PAYLOAD;
- VITA_TICS :
- vita_state <= VITA_TICS2;
- VITA_TICS2 :
- vita_state <= VITA_PAYLOAD;
-
- VITA_PAYLOAD : begin
-
- //step through each element until line done, then reset
- vector_phase <= (line_done)? 0: vector_phase + 1;
-
- //decrement the packet count after each line
- pkt_len <= (line_done)? pkt_len - 1 : pkt_len;
-
- //end of frame reached, determine next state
- //otherwise, keep processing through the payload
- if (line_done && vita_eof) begin
-
- if (eof) begin
- vita_state <= (USE_TRANS_HEADER==1) ? VITA_TRANS_HEADER : VITA_HEADER;
- end
- else if (has_trailer_reg) begin
- vita_state <= VITA_TRAILER;
- end
- else begin
- vita_state <= VITA_DUMP;
- end
-
- end //line_done && vita_eof
-
- end //end VITA_PAYLOAD
-
- VITA_TRAILER :
- if(eof)
- vita_state <= (USE_TRANS_HEADER==1) ? VITA_TRANS_HEADER : VITA_HEADER;
- else
- vita_state <= VITA_DUMP;
- VITA_DUMP :
- if(eof)
- vita_state <= (USE_TRANS_HEADER==1) ? VITA_TRANS_HEADER : VITA_HEADER;
- default :
- vita_state <= (USE_TRANS_HEADER==1) ? VITA_TRANS_HEADER : VITA_HEADER;
- endcase // case (vita_state)
-
- end //valid read
-
- assign line_done = (MAXCHAN == 1)? 1 : (vector_phase == numchan);
-
- wire [FIFOWIDTH-1:0] fifo_i;
- reg [63:0] send_time;
-
- always @(posedge clk)
- case(vita_state)
- VITA_TICS :
- send_time[63:32] <= data_i[31:0];
- VITA_TICS2 :
- send_time[31:0] <= data_i[31:0];
- endcase // case (vita_state)
-
- //sample registers for de-framing a vector input
- reg [31:0] sample_reg [1:0];
- always @(posedge clk)
- if(src_rdy_i && dst_rdy_o)
- sample_reg[vector_phase] <= data_i[31:0];
-
- wire store = (vita_state == VITA_PAYLOAD)? (src_rdy_i && line_done) : 0;
- assign dst_rdy_o = (vita_state == VITA_PAYLOAD)? fifo_space : 1;
-
- fifo_short #(.WIDTH(FIFOWIDTH)) short_tx_q
- (.clk(clk), .reset(reset), .clear(clear),
- .datain(fifo_i), .src_rdy_i(store), .dst_rdy_o(fifo_space),
- .dataout(sample_fifo_o), .src_rdy_o(sample_fifo_src_rdy_o), .dst_rdy_i(sample_fifo_dst_rdy_i) );
-
- //assign registered/live data to the samples vector
- //the numchan'th sample vector is muxed to live data
- wire [(32*MAXCHAN)-1:0] samples;
- generate
- genvar i;
- for (i=0; i < MAXCHAN; i = i +1) begin : assign_samples
- wire live_data = (i == (MAXCHAN-1))? 1 : numchan == i;
- assign samples[32*i + 31:32*i] = (live_data)? data_i[31:0] : sample_reg[i];
- end
- endgenerate
-
- // sob, eob, has_tics (send_at) ignored on all lines except first
- assign fifo_i = {samples,seqnum_err,has_tics_reg,is_sob_reg,is_eob_reg,eop,
- 12'd0,seqnum_reg[3:0],send_time};
-
- assign debug = { { 8'b0 },
- { 8'b0 },
- { eof, line_done, store, fifo_space, src_rdy_i, dst_rdy_o, vector_phase[1:0] },
- { has_secs_reg, is_sob_reg, is_eob_reg, eop, vita_state[3:0] } };
-
-endmodule // vita_tx_deframer
diff --git a/fpga/usrp2/vrt/vita_tx_engine_glue.v b/fpga/usrp2/vrt/vita_tx_engine_glue.v
deleted file mode 100644
index db0d55dee..000000000
--- a/fpga/usrp2/vrt/vita_tx_engine_glue.v
+++ /dev/null
@@ -1,99 +0,0 @@
-//
-// Copyright 2012 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-//The following module is used to re-write transmit packets from the host.
-//This module provides a packet-based ram interface for manipulating packets.
-//By default, this module uses the built-in 8 to 16 bit converter engine.
-
-module vita_tx_engine_glue
-#(
- //the dsp unit number: 0, 1, 2...
- parameter DSPNO = 0,
-
- //buffer size for ram interface engine
- parameter BUF_SIZE = 10,
-
- //base address for built-in settings registers used in this module
- parameter MAIN_SETTINGS_BASE = 0,
-
- //the number of 32bit lines between start of buffer and vita header
- //the metadata before the header should be preserved by the engine
- parameter HEADER_OFFSET = 0
-)
-(
- //control signals
- input clock, input reset, input clear,
-
- //main settings bus for built-in modules
- input set_stb_main, input [7:0] set_addr_main, input [31:0] set_data_main,
-
- //user settings bus, controlled through user setting regs API
- input set_stb_user, input [7:0] set_addr_user, input [31:0] set_data_user,
-
- //ram interface for engine
- output access_we,
- output access_stb,
- input access_ok,
- output access_done,
- output access_skip_read,
- output [BUF_SIZE-1:0] access_adr,
- input [BUF_SIZE-1:0] access_len,
- output [35:0] access_dat_o,
- input [35:0] access_dat_i,
-
- //debug output (optional)
- output [31:0] debug
-);
-
- generate
- if (DSPNO==0) begin
- `ifndef TX_ENG0_MODULE
- dspengine_8to16 #(.BASE(MAIN_SETTINGS_BASE), .BUF_SIZE(BUF_SIZE), .HEADER_OFFSET(HEADER_OFFSET)) dspengine_8to16
- (.clk(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_main), .set_addr(set_addr_main), .set_data(set_data_main),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `else
- `TX_ENG0_MODULE #(.BUF_SIZE(BUF_SIZE), .HEADER_OFFSET(HEADER_OFFSET)) tx_eng0_custom
- (.clock(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_user), .set_addr(set_addr_user), .set_data(set_data_user),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `endif
- end
- else begin
- `ifndef TX_ENG1_MODULE
- dspengine_8to16 #(.BASE(MAIN_SETTINGS_BASE), .BUF_SIZE(BUF_SIZE), .HEADER_OFFSET(HEADER_OFFSET)) dspengine_8to16
- (.clk(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_main), .set_addr(set_addr_main), .set_data(set_data_main),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `else
- `TX_ENG1_MODULE #(.BUF_SIZE(BUF_SIZE), .HEADER_OFFSET(HEADER_OFFSET)) tx_eng1_custom
- (.clock(clock),.reset(reset),.clear(clear),
- .set_stb(set_stb_user), .set_addr(set_addr_user), .set_data(set_data_user),
- .access_we(access_we), .access_stb(access_stb), .access_ok(access_ok), .access_done(access_done),
- .access_skip_read(access_skip_read), .access_adr(access_adr), .access_len(access_len),
- .access_dat_i(access_dat_i), .access_dat_o(access_dat_o));
- `endif
- end
- endgenerate
-
-endmodule //vita_tx_engine_glue
diff --git a/fpga/usrp2/vrt/vita_tx_tb.v b/fpga/usrp2/vrt/vita_tx_tb.v
deleted file mode 100644
index b686a8a16..000000000
--- a/fpga/usrp2/vrt/vita_tx_tb.v
+++ /dev/null
@@ -1,193 +0,0 @@
-//
-// Copyright 2011 Ettus Research LLC
-//
-// This program is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this program. If not, see <http://www.gnu.org/licenses/>.
-//
-
-
-
-module vita_tx_tb;
-
- localparam DECIM = 8'd4;
- localparam INTERP = 8'd4;
-
- localparam MAXCHAN=1;
- localparam NUMCHAN=1;
-
- reg clk = 0;
- reg reset = 1;
-
- initial #1000 reset = 0;
- always #50 clk = ~clk;
-
- initial $dumpfile("vita_tx_tb.vcd");
- initial $dumpvars(0,vita_tx_tb);
-
- wire [(MAXCHAN*32)-1:0] sample, sample_tx;
- wire strobe, run;
- reg [35:0] data_o = 36'h0;
- reg src_rdy = 0;
- wire dst_rdy;
-
- wire [63:0] vita_time;
-
- reg set_stb = 0;
- reg [7:0] set_addr;
- reg [31:0] set_data;
- wire set_stb_dsp;
- wire [7:0] set_addr_dsp;
- wire [31:0] set_data_dsp;
-
- wire sample_dst_rdy, sample_src_rdy;
- wire [5+64+16+(MAXCHAN*32)-1:0] sample_data_o, sample_data_tx;
-
- time_64bit #(.TICKS_PER_SEC(100000000), .BASE(0)) time_64bit
- (.clk(clk), .rst(reset),
- .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
- .pps(0), .vita_time(vita_time));
-
- wire [35:0] data_tx;
- wire src_rdy_tx, dst_rdy_tx;
- wire sample_dst_rdy_tx, sample_src_rdy_tx;
-
- fifo_long #(.WIDTH(36)) fifo_short
- (.clk(clk), .reset(reset), .clear(0),
- .datain(data_o), .src_rdy_i(src_rdy), .dst_rdy_o(dst_rdy),
- .dataout(data_tx), .src_rdy_o(src_rdy_tx), .dst_rdy_i(dst_rdy_tx));
-
- vita_tx_deframer #(.BASE(16), .MAXCHAN(MAXCHAN), .USE_TRANS_HEADER(0)) vita_tx_deframer
- (.clk(clk), .reset(reset), .clear(0), .clear_seqnum(0),
- .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
- .data_i(data_tx), .dst_rdy_o(dst_rdy_tx), .src_rdy_i(src_rdy_tx),
- .sample_fifo_o(sample_data_tx),
- .sample_fifo_dst_rdy_i(sample_dst_rdy_tx), .sample_fifo_src_rdy_o(sample_src_rdy_tx),
- .fifo_occupied(), .fifo_full(), .fifo_empty() );
-
- vita_tx_control #(.BASE(16), .WIDTH(MAXCHAN*32)) vita_tx_control
- (.clk(clk), .reset(reset), .clear(0),
- .set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
- .vita_time(vita_time), .error(underrun), .error_code(),
- .sample_fifo_i(sample_data_tx),
- .sample_fifo_dst_rdy_o(sample_dst_rdy_tx), .sample_fifo_src_rdy_i(sample_src_rdy_tx),
- .sample(sample_tx), .run(run_tx), .strobe(strobe_tx));
-
- tx_dsp_model tx_dsp_model
- (.clk(clk), .reset(reset), .run(run_tx), .interp(INTERP), .strobe(strobe_tx), .sample(sample_tx[31:0] ));
-
- task write_setting;
- input [7:0] addr;
- input [31:0] data;
- begin
- set_stb <= 0;
- @(posedge clk);
- set_addr <= addr;
- set_data <= data;
- set_stb <= 1;
- @(posedge clk);
- set_stb <= 0;
- end
- endtask // write_setting
-
- initial
- begin
- @(negedge reset);
- @(posedge clk);
- write_setting(4,32'h14900008); // VITA header
- write_setting(5,32'hF00D1234); // VITA streamid
- write_setting(6,32'h98765432); // VITA trailer
- write_setting(7,8); // Samples per VITA packet
- write_setting(8,NUMCHAN); // Samples per VITA packet
- #10000;
- queue_vita_packets(0, 32'h300, 5, 32'h0000_1000, 32'h0, 4'h0, 1, 0, 1);
- queue_vita_packets(0, 32'h0, 5, 32'h0000_2000, 32'h0, 4'h1, 0, 0, 0);
- queue_vita_packets(0, 32'h0, 5, 32'h0000_3000, 32'h0, 4'h2, 0, 0, 0);
-
- queue_vita_packets(0, 32'h400, 3, 32'h0000_4000, 32'h0, 4'h3, 1, 0, 1);
- queue_vita_packets(0, 32'h0, 3, 32'h0000_5000, 32'h0, 4'h4, 0, 0, 0);
- queue_vita_packets(0, 32'h0, 3, 32'h0000_6000, 32'h0, 4'h5, 0, 1, 0);
-
- #300000 $finish;
- end
-
- task queue_vita_packets;
- input [31:0] send_secs;
- input [31:0] sendtime;
- input [15:0] samples;
- input [15:0] word;
- input [31:0] trailer;
- input [3:0] seqnum;
- input sob;
- input eob;
- input sendat;
-
- reg [15:0] i;
-
- begin
- src_rdy <= 0;
- @(posedge clk);
- src_rdy <= 1;
- data_o <= {4'b0001,4'h0,1'b0,|trailer,sob,eob,{2{sendat}},1'b0,sendat,seqnum,(16'd1+samples+|trailer+sendat+sendat+sendat)}; // header
- @(posedge clk);
- //data_o <= {4'b0000,32'h0}; // streamid
- //@(posedge clk);
- if(sendat)
- begin
- data_o <= {4'b0000,send_secs}; // SECS
- @(posedge clk);
- data_o <= {4'b0000,32'h0}; // TICS
- @(posedge clk);
- data_o <= {4'b0000,sendtime}; // TICS
- @(posedge clk);
- end
- for(i=0;i<samples-1;i=i+1)
- begin
- data_o <= {4'b0000,i,word}; // Payload
- @(posedge clk);
- end
- if(trailer==0)
- begin
- data_o <= {4'b0010,i,16'hBEEF}; // Last Payload
- @(posedge clk);
- end
- else
- begin
- data_o <= {4'b0000,i,16'hBEEF}; // Last Payload
- @(posedge clk);
- data_o <= {4'b0010,trailer}; // Last Payload
- @(posedge clk);
- end
- src_rdy <= 0;
- @(posedge clk);
-
- end
- endtask // queue_vita_packets
-
-endmodule // vita_tx_tb
-
-
-module tx_dsp_model
- (input clk, input reset,
- input run,
- input [7:0] interp,
- output strobe,
- input [31:0] sample);
-
- cic_strober strober(.clock(clk), .reset(reset), .enable(run), .rate(interp), .strobe_fast(1), .strobe_slow(strobe));
-
- always @(posedge clk)
- if(strobe)
- $display("Time %d, Sent Sample %x",$time,sample);
-
-
-endmodule // tx_dsp_model
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