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Diffstat (limited to 'fpga/usrp2/gpif/gpif.v')
| -rw-r--r-- | fpga/usrp2/gpif/gpif.v | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/fpga/usrp2/gpif/gpif.v b/fpga/usrp2/gpif/gpif.v deleted file mode 100644 index e5b63d5a3..000000000 --- a/fpga/usrp2/gpif/gpif.v +++ /dev/null @@ -1,185 +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 gpif - #(parameter TXFIFOSIZE = 11, parameter RXFIFOSIZE = 11) - (// GPIF signals - input gpif_clk, input gpif_rst, - inout [15:0] gpif_d, input [3:0] gpif_ctl, output [3:0] gpif_rdy, - output [2:0] gpif_misc, - - // Wishbone signals - input wb_clk, input wb_rst, - output [15:0] wb_adr_o, output [15:0] wb_dat_mosi, input [15:0] wb_dat_miso, - output [1:0] wb_sel_o, output wb_cyc_o, output wb_stb_o, output wb_we_o, input wb_ack_i, - input [7:0] triggers, - - // FIFO interface - input fifo_clk, input fifo_rst, input clear_tx, input clear_rx, - output [35:0] tx_data_o, output tx_src_rdy_o, input tx_dst_rdy_i, - input [35:0] rx_data_i, input rx_src_rdy_i, output rx_dst_rdy_o, - input [35:0] tx_err_data_i, input tx_err_src_rdy_i, output tx_err_dst_rdy_o, - - output tx_underrun, output rx_overrun, - input [7:0] frames_per_packet, - output [31:0] debug0, output [31:0] debug1 - ); - - assign tx_underrun = 0; - assign rx_overrun = 0; - - wire WR = gpif_ctl[0]; - wire RD = gpif_ctl[1]; - wire OE = gpif_ctl[2]; - wire EP = gpif_ctl[3]; - - wire CF, CE, DF, DE; - - assign gpif_rdy = { CF, CE, DF, DE }; - - wire [15:0] gpif_d_out; - assign gpif_d = OE ? gpif_d_out : 16'bz; - - wire [15:0] gpif_d_copy = gpif_d; - - wire [31:0] debug_rd, debug_wr, debug_split0, debug_split1; - - // //////////////////////////////////////////////////////////////////// - // TX Data Path - - wire [18:0] tx19_data; - wire tx19_src_rdy, tx19_dst_rdy; - wire [35:0] tx36_data; - wire tx36_src_rdy, tx36_dst_rdy; - - wire [18:0] ctrl_data; - wire ctrl_src_rdy, ctrl_dst_rdy; - - gpif_wr gpif_wr - (.gpif_clk(gpif_clk), .gpif_rst(gpif_rst), - .gpif_data(gpif_d), .gpif_wr(WR), .gpif_ep(EP), - .gpif_full_d(DF), .gpif_full_c(CF), - - .sys_clk(fifo_clk), .sys_rst(fifo_rst), - .data_o(tx19_data), .src_rdy_o(tx19_src_rdy), .dst_rdy_i(tx19_dst_rdy), - .ctrl_o(ctrl_data), .ctrl_src_rdy_o(ctrl_src_rdy), .ctrl_dst_rdy_i(ctrl_dst_rdy), - .debug(debug_wr) ); - - // join vita packets which are longer than one frame, drop frame padding - wire [18:0] refr_data; - wire refr_src_rdy, refr_dst_rdy; - - packet_reframer tx_packet_reframer - (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_tx), - .data_i(tx19_data), .src_rdy_i(tx19_src_rdy), .dst_rdy_o(tx19_dst_rdy), - .data_o(refr_data), .src_rdy_o(refr_src_rdy), .dst_rdy_i(refr_dst_rdy)); - - fifo19_to_fifo36 #(.LE(1)) f19_to_f36 - (.clk(fifo_clk), .reset(fifo_rst), .clear(0), - .f19_datain(refr_data), .f19_src_rdy_i(refr_src_rdy), .f19_dst_rdy_o(refr_dst_rdy), - .f36_dataout(tx36_data), .f36_src_rdy_o(tx36_src_rdy), .f36_dst_rdy_i(tx36_dst_rdy)); - - fifo_cascade #(.WIDTH(36), .SIZE(TXFIFOSIZE)) tx_fifo36 - (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_tx), - .datain(tx36_data), .src_rdy_i(tx36_src_rdy), .dst_rdy_o(tx36_dst_rdy), - .dataout(tx_data_o), .src_rdy_o(tx_src_rdy_o), .dst_rdy_i(tx_dst_rdy_i)); - - // //////////////////////////////////////////// - // RX Data Path - - wire [35:0] rx36_data; - wire rx36_src_rdy, rx36_dst_rdy; - wire [18:0] rx19_data, splt_data; - wire rx19_src_rdy, rx19_dst_rdy, splt_src_rdy, splt_dst_rdy; - wire [18:0] resp_data, resp_int1, resp_int2; - wire resp_src_rdy, resp_dst_rdy; - wire resp_src_rdy_int1, resp_dst_rdy_int1, resp_src_rdy_int2, resp_dst_rdy_int2; - - fifo_cascade #(.WIDTH(36), .SIZE(RXFIFOSIZE)) rx_fifo36 - (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_rx), - .datain(rx_data_i), .src_rdy_i(rx_src_rdy_i), .dst_rdy_o(rx_dst_rdy_o), - .dataout(rx36_data), .src_rdy_o(rx36_src_rdy), .dst_rdy_i(rx36_dst_rdy)); - - fifo36_to_fifo19 #(.LE(1)) f36_to_f19 - (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_rx), - .f36_datain(rx36_data), .f36_src_rdy_i(rx36_src_rdy), .f36_dst_rdy_o(rx36_dst_rdy), - .f19_dataout(rx19_data), .f19_src_rdy_o(rx19_src_rdy), .f19_dst_rdy_i(rx19_dst_rdy) ); - - packet_splitter #(.FRAME_LEN(256)) packet_splitter - (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_rx), - .frames_per_packet(frames_per_packet), - .data_i(rx19_data), .src_rdy_i(rx19_src_rdy), .dst_rdy_o(rx19_dst_rdy), - .data_o(splt_data), .src_rdy_o(splt_src_rdy), .dst_rdy_i(splt_dst_rdy), - .debug0(debug_split0), .debug1(debug_split1)); - - gpif_rd gpif_rd - (.gpif_clk(gpif_clk), .gpif_rst(gpif_rst), - .gpif_data(gpif_d_out), .gpif_rd(RD), .gpif_ep(EP), - .gpif_empty_d(DE), .gpif_empty_c(CE), .gpif_flush(gpif_misc[0]), - - .sys_clk(fifo_clk), .sys_rst(fifo_rst), - .data_i(splt_data), .src_rdy_i(splt_src_rdy), .dst_rdy_o(splt_dst_rdy), - .resp_i(resp_data), .resp_src_rdy_i(resp_src_rdy), .resp_dst_rdy_o(resp_dst_rdy), - .debug(debug_rd) ); - - // //////////////////////////////////////////////////////////////////// - // FIFO to Wishbone interface - - fifo_to_wb fifo_to_wb - (.clk(fifo_clk), .reset(fifo_rst), .clear(0), - .data_i(ctrl_data), .src_rdy_i(ctrl_src_rdy), .dst_rdy_o(ctrl_dst_rdy), - .data_o(resp_int1), .src_rdy_o(resp_src_rdy_int1), .dst_rdy_i(resp_dst_rdy_int1), - .wb_adr_o(wb_adr_o), .wb_dat_mosi(wb_dat_mosi), .wb_dat_miso(wb_dat_miso), .wb_sel_o(wb_sel_o), - .wb_cyc_o(wb_cyc_o), .wb_stb_o(wb_stb_o), .wb_we_o(wb_we_o), .wb_ack_i(wb_ack_i), - .triggers(triggers), - .debug0(), .debug1()); - - wire [18:0] tx_err19_data; - wire tx_err19_src_rdy, tx_err19_dst_rdy; - - fifo36_to_fifo19 #(.LE(1)) f36_to_f19_txerr - (.clk(fifo_clk), .reset(fifo_rst), .clear(clear_rx), - .f36_datain(tx_err_data_i), .f36_src_rdy_i(tx_err_src_rdy_i), .f36_dst_rdy_o(tx_err_dst_rdy_o), - .f19_dataout(tx_err19_data), .f19_src_rdy_o(tx_err19_src_rdy), .f19_dst_rdy_i(tx_err19_dst_rdy) ); - - fifo19_mux #(.prio(0)) mux_err_stream - (.clk(wb_clk), .reset(wb_rst), .clear(0), - .data0_i(resp_int1), .src0_rdy_i(resp_src_rdy_int1), .dst0_rdy_o(resp_dst_rdy_int1), - .data1_i(tx_err19_data), .src1_rdy_i(tx_err19_src_rdy), .dst1_rdy_o(tx_err19_dst_rdy), - .data_o(resp_int2), .src_rdy_o(resp_src_rdy_int2), .dst_rdy_i(resp_dst_rdy_int2)); - - fifo19_pad #(.LENGTH(16)) fifo19_pad - (.clk(fifo_clk), .reset(fifo_rst), .clear(0), - .data_i(resp_int2), .src_rdy_i(resp_src_rdy_int2), .dst_rdy_o(resp_dst_rdy_int2), - .data_o(resp_data), .src_rdy_o(resp_src_rdy), .dst_rdy_i(resp_dst_rdy)); - - // //////////////////////////////////////////// - // DEBUG - - //assign debug0 = { rx19_src_rdy, rx19_dst_rdy, resp_src_rdy, resp_dst_rdy, gpif_ctl[3:0], gpif_rdy[3:0], - // gpif_d_copy[15:0] }; - - //assign debug1 = { { debug_rd[15:8] }, - // { debug_rd[7:0] }, - // { rx_src_rdy_i, rx_dst_rdy_o, rx36_src_rdy, rx36_dst_rdy, rx19_src_rdy, rx19_dst_rdy, resp_src_rdy, resp_dst_rdy}, - // { tx_src_rdy_o, tx_dst_rdy_i, tx19_src_rdy, tx19_dst_rdy, tx36_src_rdy, tx36_dst_rdy, ctrl_src_rdy, ctrl_dst_rdy} }; - - assign debug0 = { gpif_ctl[3:0], gpif_rdy[3:0], debug_split0[23:0] }; - assign debug1 = { gpif_misc[0], debug_rd[14:0], debug_split1[15:8], debug_split1[7:0] }; -endmodule // gpif |