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-rw-r--r--usrp2/vrt/vita_tx_control.v61
1 files changed, 43 insertions, 18 deletions
diff --git a/usrp2/vrt/vita_tx_control.v b/usrp2/vrt/vita_tx_control.v
index 56a6c5a17..e02866af2 100644
--- a/usrp2/vrt/vita_tx_control.v
+++ b/usrp2/vrt/vita_tx_control.v
@@ -7,10 +7,10 @@ module vita_tx_control
input [63:0] vita_time,
output error,
- output reg [15:0] error_code,
+ output reg [31:0] error_code,
// From vita_tx_deframer
- input [5+64+WIDTH-1:0] sample_fifo_i,
+ input [5+64+16+WIDTH-1:0] sample_fifo_i,
input sample_fifo_src_rdy_i,
output sample_fifo_dst_rdy_o,
@@ -22,14 +22,15 @@ module vita_tx_control
output [31:0] debug
);
- assign sample = sample_fifo_i[5+64+WIDTH-1:5+64];
+ assign sample = sample_fifo_i[5+64+16+WIDTH-1:5+64+16];
wire [63:0] send_time = sample_fifo_i[63:0];
- wire eop = sample_fifo_i[64];
- wire eob = sample_fifo_i[65];
- wire sob = sample_fifo_i[66];
- wire send_at = sample_fifo_i[67];
- wire seqnum_err = sample_fifo_i[68];
+ 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;
@@ -46,11 +47,11 @@ module vita_tx_control
localparam IBS_ERROR = 3;
localparam IBS_ERROR_DONE = 4;
- localparam CODE_UNDERRUN = 2;
- localparam CODE_SEQ_ERROR = 4;
- localparam CODE_TIME_ERROR = 8;
- localparam CODE_UNDERRUN_MIDPKT = 16;
- localparam CODE_SEQ_ERROR_MIDBURST = 32;
+ 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;
@@ -59,9 +60,22 @@ module vita_tx_control
(.clk(clk),.rst(rst),.strobe(set_stb),.addr(set_addr),
.in(set_data),.out(),.changed(clear_state));
+ wire [31:0] error_policy;
+ setting_reg #(.my_addr(BASE+3)) sr_error_policy
+ (.clk(clk),.rst(rst),.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;
+
always @(posedge clk)
if(reset | clear_state)
- ibs_state <= IBS_IDLE;
+ begin
+ ibs_state <= IBS_IDLE;
+ send_error <= 0;
+ end
else
case(ibs_state)
IBS_IDLE :
@@ -70,6 +84,7 @@ module vita_tx_control
begin
ibs_state <= IBS_ERROR;
error_code <= CODE_SEQ_ERROR;
+ send_error <= 1;
end
else if(~send_at | now)
ibs_state <= IBS_RUN;
@@ -77,6 +92,7 @@ module vita_tx_control
begin
ibs_state <= IBS_ERROR;
error_code <= CODE_TIME_ERROR;
+ send_error <= 1;
end
IBS_RUN :
@@ -85,6 +101,7 @@ module vita_tx_control
begin
ibs_state <= IBS_ERROR;
error_code <= CODE_UNDERRUN_MIDPKT;
+ send_error <= 1;
end
else if(eop)
if(eob)
@@ -97,20 +114,27 @@ module vita_tx_control
begin
ibs_state <= IBS_ERROR_DONE;
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 :
- if(sample_fifo_src_rdy_i & eop)
- ibs_state <= IBS_ERROR_DONE;
-
+ begin
+ send_error <= 0;
+ if(sample_fifo_src_rdy_i & eop)
+ if(policy_next_packet | (policy_next_burst & eob))
+ ibs_state <= IBS_IDLE;
+ else
+ ibs_state <= IBS_ERROR_DONE;
+ end
IBS_ERROR_DONE :
;
@@ -118,7 +142,8 @@ module vita_tx_control
assign sample_fifo_dst_rdy_o = (ibs_state == IBS_ERROR) | (strobe & (ibs_state == IBS_RUN)); // FIXME also cleanout
assign run = (ibs_state == IBS_RUN) | (ibs_state == IBS_CONT_BURST);
- assign error = (ibs_state == IBS_ERROR_DONE);
+ //assign error = (ibs_state == IBS_ERROR_DONE);
+ assign error = send_error;
assign debug = { { now,early,late,too_early,eop,eob,sob,send_at },
{ sample_fifo_src_rdy_i, sample_fifo_dst_rdy_o, strobe, run, error, ibs_state[2:0] },