aboutsummaryrefslogtreecommitdiffstats
path: root/fpga/usrp2/simple_gemac/ll8_to_txmac.v
diff options
context:
space:
mode:
Diffstat (limited to 'fpga/usrp2/simple_gemac/ll8_to_txmac.v')
-rw-r--r--fpga/usrp2/simple_gemac/ll8_to_txmac.v60
1 files changed, 0 insertions, 60 deletions
diff --git a/fpga/usrp2/simple_gemac/ll8_to_txmac.v b/fpga/usrp2/simple_gemac/ll8_to_txmac.v
deleted file mode 100644
index ac81afa63..000000000
--- a/fpga/usrp2/simple_gemac/ll8_to_txmac.v
+++ /dev/null
@@ -1,60 +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 ll8_to_txmac
- (input clk, input reset, input clear,
- input [7:0] ll_data, input ll_sof, input ll_eof, input ll_src_rdy, output ll_dst_rdy,
- output [7:0] tx_data, output tx_valid, output tx_error, input tx_ack );
-
- reg [2:0] xfer_state;
-
- localparam XFER_IDLE = 0;
- localparam XFER_ACTIVE = 1;
- localparam XFER_WAIT1 = 2;
- localparam XFER_UNDERRUN = 3;
- localparam XFER_DROP = 4;
-
- always @(posedge clk)
- if(reset | clear)
- xfer_state <= XFER_IDLE;
- else
- case(xfer_state)
- XFER_IDLE :
- if(tx_ack)
- xfer_state <= XFER_ACTIVE;
- XFER_ACTIVE :
- if(~ll_src_rdy)
- xfer_state <= XFER_UNDERRUN;
- else if(ll_eof)
- xfer_state <= XFER_WAIT1;
- XFER_WAIT1 :
- xfer_state <= XFER_IDLE;
- XFER_UNDERRUN :
- xfer_state <= XFER_DROP;
- XFER_DROP :
- if(ll_eof)
- xfer_state <= XFER_IDLE;
- endcase // case (xfer_state)
-
- assign ll_dst_rdy = (xfer_state == XFER_ACTIVE) | tx_ack | (xfer_state == XFER_DROP);
- assign tx_valid = (ll_src_rdy & (xfer_state == XFER_IDLE))|(xfer_state == XFER_ACTIVE);
- assign tx_data = ll_data;
- assign tx_error = (xfer_state == XFER_UNDERRUN);
-
-endmodule // ll8_to_txmac
-