diff options
Diffstat (limited to 'fpga/usrp3/lib/packet_proc/vrlp_to_compressed_vita.v')
-rw-r--r-- | fpga/usrp3/lib/packet_proc/vrlp_to_compressed_vita.v | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/fpga/usrp3/lib/packet_proc/vrlp_to_compressed_vita.v b/fpga/usrp3/lib/packet_proc/vrlp_to_compressed_vita.v deleted file mode 100644 index 04da73616..000000000 --- a/fpga/usrp3/lib/packet_proc/vrlp_to_compressed_vita.v +++ /dev/null @@ -1,90 +0,0 @@ - -module vrlp_to_compressed_vita - (input clk, input reset, input clear, - input [63:0] i_tdata, input i_tlast, input i_tvalid, output i_tready, - output [63:0] o_tdata, output o_tlast, output o_tvalid, input o_tready); - - wire [63:0] o_tdata_int; - wire o_tlast_int, o_tvalid_int, o_tready_int; - - reg [1:0] v2cv_state; - reg [11:0] seqnum; - reg trim_line; - - localparam V2CV_VRLP = 2'd0; - localparam V2CV_VRTH = 2'd1; - localparam V2CV_BODY = 2'd2; - localparam V2CV_DUMP = 2'd3; - - wire is_ec = i_tdata[63:60] == 4'h5; - wire has_trailer = i_tdata[58] & ~is_ec; - wire has_time = |i_tdata[53:52]; - wire eob = i_tdata[56] & ~is_ec; - wire [15:0] len = i_tdata[47:32]; - wire [31:0] sid = i_tdata[31:0]; - - wire [63:0] compressed_hdr = { is_ec, has_trailer, has_time, eob, seqnum, len, sid }; - wire bad_vita = |i_tdata[55:54] /* has secs */ | i_tdata[59] /* has class */ | ( {i_tdata[63],i_tdata[61:60]} != 3'b001 ); - reg [15:0] len_reg; - wire [16:0] vita_words32 = i_tdata[16:0]-17'd4; - assign trim_now = 0; - - always @(posedge clk) - if(reset | clear) - begin - v2cv_state <= V2CV_VRLP; - seqnum <= 12'd0; - trim_line <= 1'b0; - len_reg <= 16'd0; - end - else - case(v2cv_state) - V2CV_VRLP : - if(i_tvalid) - begin - seqnum <= i_tdata[31:20]; - trim_line <= i_tdata[0]; - len_reg <= vita_words32[16:1]; - if(~i_tlast) - v2cv_state <= V2CV_VRTH; - end - - V2CV_VRTH : - if(i_tvalid & o_tready_int) - begin - len_reg <= len_reg - 16'd1; - if(i_tlast) - v2cv_state <= V2CV_VRLP; - else if(bad_vita) - v2cv_state <= V2CV_DUMP; - else - v2cv_state <= V2CV_BODY; - end - - V2CV_BODY : - if(i_tvalid & o_tready_int) - begin - len_reg <= len_reg - 16'd1; - if(i_tlast) - v2cv_state <= V2CV_VRLP; - else if(len_reg == 16'd0) - v2cv_state <= V2CV_DUMP; - end - V2CV_DUMP : - if(i_tvalid) - if(i_tlast) - v2cv_state <= V2CV_VRLP; - endcase // case (v2cv_state) - - assign o_tdata_int = (v2cv_state == V2CV_VRTH) ? compressed_hdr : i_tdata; - assign o_tlast_int = i_tlast | (len_reg == 16'd0); - assign o_tvalid_int = i_tvalid && (((v2cv_state == V2CV_VRTH) && !bad_vita) || (v2cv_state == V2CV_BODY)); - assign i_tready = o_tready_int | (v2cv_state == V2CV_VRLP) | (v2cv_state == V2CV_DUMP); - - axi_fifo_short #(.WIDTH(65)) short_fifo - (.clk(clk), .reset(reset), .clear(clear), - .i_tdata({o_tlast_int,o_tdata_int}), .i_tvalid(o_tvalid_int), .i_tready(o_tready_int), - .o_tdata({o_tlast,o_tdata}), .o_tvalid(o_tvalid), .o_tready(o_tready), - .space(), .occupied()); - -endmodule // vrlp_to_compressed_vita |