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-rw-r--r--usrp2/control_lib/Makefile.srcs47
-rw-r--r--usrp2/control_lib/newfifo/.gitignore3
-rw-r--r--usrp2/control_lib/newfifo/buffer_int.v168
-rw-r--r--usrp2/control_lib/newfifo/buffer_int_tb.v418
-rw-r--r--usrp2/control_lib/newfifo/buffer_pool.v283
-rw-r--r--usrp2/control_lib/newfifo/buffer_pool_tb.v58
-rw-r--r--usrp2/control_lib/newfifo/fifo19_to_fifo36.v82
-rw-r--r--usrp2/control_lib/newfifo/fifo19_to_ll8.v53
-rw-r--r--usrp2/control_lib/newfifo/fifo36_to_fifo19.v45
-rw-r--r--usrp2/control_lib/newfifo/fifo36_to_ll8.v59
-rw-r--r--usrp2/control_lib/newfifo/fifo_2clock.v117
-rw-r--r--usrp2/control_lib/newfifo/fifo_2clock_cascade.v35
-rw-r--r--usrp2/control_lib/newfifo/fifo_cascade.v52
-rw-r--r--usrp2/control_lib/newfifo/fifo_long.v148
-rw-r--r--usrp2/control_lib/newfifo/fifo_new_tb.vcd5506
-rw-r--r--usrp2/control_lib/newfifo/fifo_short.v95
-rw-r--r--usrp2/control_lib/newfifo/fifo_spec.txt36
-rw-r--r--usrp2/control_lib/newfifo/fifo_tb.v158
-rw-r--r--usrp2/control_lib/newfifo/ll8_shortfifo.v13
-rw-r--r--usrp2/control_lib/newfifo/ll8_to_fifo19.v73
-rw-r--r--usrp2/control_lib/newfifo/ll8_to_fifo36.v97
21 files changed, 47 insertions, 7499 deletions
diff --git a/usrp2/control_lib/Makefile.srcs b/usrp2/control_lib/Makefile.srcs
new file mode 100644
index 000000000..095890d59
--- /dev/null
+++ b/usrp2/control_lib/Makefile.srcs
@@ -0,0 +1,47 @@
+#
+# Copyright 2010 Ettus Research LLC
+#
+
+##################################################
+# Control Lib Sources
+##################################################
+CONTROL_LIB_SRCS = $(abspath $(addprefix $(BASE_DIR)/../control_lib/, \
+CRC16_D16.v \
+atr_controller.v \
+bin2gray.v \
+dcache.v \
+decoder_3_8.v \
+dpram32.v \
+gray2bin.v \
+gray_send.v \
+icache.v \
+mux4.v \
+mux8.v \
+nsgpio.v \
+ram_2port.v \
+ram_harv_cache.v \
+ram_loader.v \
+setting_reg.v \
+settings_bus.v \
+settings_bus_crossclock.v \
+srl.v \
+system_control.v \
+wb_1master.v \
+wb_readback_mux.v \
+simple_uart.v \
+simple_uart_tx.v \
+simple_uart_rx.v \
+oneshot_2clk.v \
+sd_spi.v \
+sd_spi_wb.v \
+wb_bridge_16_32.v \
+reset_sync.v \
+priority_enc.v \
+pic.v \
+longfifo.v \
+shortfifo.v \
+medfifo.v \
+nsgpio16LE.v \
+settings_bus_16LE.v \
+atr_controller16.v \
+))
diff --git a/usrp2/control_lib/newfifo/.gitignore b/usrp2/control_lib/newfifo/.gitignore
deleted file mode 100644
index 866f1faad..000000000
--- a/usrp2/control_lib/newfifo/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-*.vcd
-*.lxt
-a.out
diff --git a/usrp2/control_lib/newfifo/buffer_int.v b/usrp2/control_lib/newfifo/buffer_int.v
deleted file mode 100644
index b45ed3532..000000000
--- a/usrp2/control_lib/newfifo/buffer_int.v
+++ /dev/null
@@ -1,168 +0,0 @@
-
-// FIFO Interface to the 2K buffer RAMs
-// Read port is read-acknowledge
-// FIXME do we want to be able to interleave reads and writes?
-
-module buffer_int
- #(parameter BUF_NUM = 0,
- parameter BUF_SIZE = 9)
- (// Control Interface
- input clk,
- input rst,
- input [31:0] ctrl_word,
- input go,
- output done,
- output error,
- output idle,
- output [1:0] flag,
-
- // Buffer Interface
- output en_o,
- output we_o,
- output reg [BUF_SIZE-1:0] addr_o,
- output [31:0] dat_to_buf,
- input [31:0] dat_from_buf,
-
- // Write FIFO Interface
- input [31:0] wr_data_i,
- input [3:0] wr_flags_i,
- input wr_ready_i,
- output wr_ready_o,
-
- // Read FIFO Interface
- output [31:0] rd_data_o,
- output [3:0] rd_flags_o,
- output rd_ready_o,
- input rd_ready_i
- );
-
- reg [31:0] ctrl_reg;
- reg go_reg;
-
- always @(posedge clk)
- go_reg <= go;
-
- always @(posedge clk)
- if(rst)
- ctrl_reg <= 0;
- else
- if(go & (ctrl_word[31:28] == BUF_NUM))
- ctrl_reg <= ctrl_word;
-
- wire [BUF_SIZE-1:0] firstline = ctrl_reg[BUF_SIZE-1:0];
- wire [BUF_SIZE-1:0] lastline = ctrl_reg[2*BUF_SIZE-1:BUF_SIZE];
-
- wire read = ctrl_reg[22];
- wire write = ctrl_reg[23];
- wire clear = ctrl_reg[24];
- //wire [2:0] port = ctrl_reg[27:25]; // Ignored in this block
- //wire [3:0] buff_num = ctrl_reg[31:28]; // Ignored here ?
-
- localparam IDLE = 3'd0;
- localparam PRE_READ = 3'd1;
- localparam READING = 3'd2;
- localparam WRITING = 3'd3;
- localparam ERROR = 3'd4;
- localparam DONE = 3'd5;
-
- reg [2:0] state;
- reg rd_sop, rd_eop;
- wire wr_sop, wr_eop, wr_error;
- reg [1:0] rd_occ;
- wire [1:0] wr_occ;
-
- always @(posedge clk)
- if(rst)
- begin
- state <= IDLE;
- rd_sop <= 0;
- rd_eop <= 0;
- rd_occ <= 0;
- end
- else
- if(clear)
- begin
- state <= IDLE;
- rd_sop <= 0;
- rd_eop <= 0;
- rd_occ <= 0;
- end
- else
- case(state)
- IDLE :
- if(go_reg & read)
- begin
- addr_o <= firstline;
- state <= PRE_READ;
- end
- else if(go_reg & write)
- begin
- addr_o <= firstline;
- state <= WRITING;
- end
-
- PRE_READ :
- begin
- state <= READING;
- addr_o <= addr_o + 1;
- rd_occ <= 2'b00;
- rd_sop <= 1;
- rd_eop <= 0;
- end
-
- READING :
- if(rd_ready_i)
- begin
- rd_sop <= 0;
- addr_o <= addr_o + 1;
- if(addr_o == lastline)
- begin
- rd_eop <= 1;
- // FIXME assign occ here
- rd_occ <= 0;
- end
- else
- rd_eop <= 0;
- if(rd_eop)
- state <= DONE;
- end
-
- WRITING :
- begin
- if(wr_ready_i)
- begin
- addr_o <= addr_o + 1;
- if(wr_error)
- begin
- state <= ERROR;
- // Save OCC flags here
- end
- else if((addr_o == lastline)||wr_eop)
- state <= DONE;
- end // if (wr_ready_i)
- end // case: WRITING
-
- endcase // case(state)
-
- assign dat_to_buf = wr_data_i;
- assign rd_data_o = dat_from_buf;
-
- assign rd_flags_o = { rd_occ[1:0], rd_eop, rd_sop };
- assign rd_ready_o = (state == READING);
-
- assign wr_sop = wr_flags_i[0];
- assign wr_eop = wr_flags_i[1];
- assign wr_occ = wr_flags_i[3:2];
- assign wr_error = wr_sop & wr_eop;
- assign wr_ready_o = (state == WRITING);
-
- assign we_o = (state == WRITING);
- //assign we_o = (state == WRITING) && wr_ready_i; // always write to avoid timing issue
-
- assign en_o = ~((state==READING)& ~rd_ready_i); // FIXME potential critical path
-
- assign done = (state == DONE);
- assign error = (state == ERROR);
- assign idle = (state == IDLE);
-
-endmodule // buffer_int
diff --git a/usrp2/control_lib/newfifo/buffer_int_tb.v b/usrp2/control_lib/newfifo/buffer_int_tb.v
deleted file mode 100644
index df54dcc0b..000000000
--- a/usrp2/control_lib/newfifo/buffer_int_tb.v
+++ /dev/null
@@ -1,418 +0,0 @@
-
-module buffer_int_tb ();
-
- reg clk = 0;
- reg rst = 1;
-
- initial #100 rst = 0;
- always #5 clk = ~clk;
-
- wire en, we;
- wire [8:0] addr;
- wire [31:0] fifo2buf, buf2fifo;
-
- wire [31:0] rd_data_o;
- wire [3:0] rd_flags_o;
- wire rd_sop_o, rd_eop_o;
- reg rd_error_i = 0, rd_read_i = 0;
-
- reg [31:0] wr_data_i = 0;
- wire [3:0] wr_flags_i;
- reg wr_eop_i = 0, wr_sop_i = 0;
- reg wr_write_i = 0;
- wire wr_ready_o, wr_full_o;
-
- reg clear = 0, write = 0, read = 0;
- reg [8:0] firstline = 0, lastline = 0;
- wire [3:0] step = 1;
- wire [31:0] ctrl_word = {4'b0,3'b0,clear,write,read,step,lastline,firstline};
- reg go = 0;
- wire done, error;
-
- assign wr_flags_i = {2'b00, wr_eop_i, wr_sop_i};
- assign rd_sop_o = rd_flags_o[0];
- assign rd_eop_o = rd_flags_o[1];
-
- buffer_int buffer_int
- (.clk(clk),.rst(rst),
- .ctrl_word(ctrl_word),.go(go),
- .done(done),.error(error),
-
- // Buffer Interface
- .en_o(en),.we_o(we),.addr_o(addr),
- .dat_to_buf(fifo2buf),.dat_from_buf(buf2fifo),
-
- // Write FIFO Interface
- .wr_data_i(wr_data_i), .wr_flags_i(wr_flags_i), .wr_write_i(wr_write_i), .wr_ready_o(wr_ready_o),
-
- // Read FIFO Interface
- .rd_data_o(rd_data_o), .rd_flags_o(rd_flags_o), .rd_ready_o(rd_ready_o), .rd_read_i(rd_read_i)
- );
-
- reg ram_en = 0, ram_we = 0;
- reg [8:0] ram_addr = 0;
- reg [31:0] ram_data = 0;
-
- ram_2port #(.DWIDTH(32),.AWIDTH(9)) ram_2port
- (.clka(clk), .ena(ram_en), .wea(ram_we), .addra(ram_addr), .dia(ram_data), .doa(),
- .clkb(clk), .enb(en), .web(we), .addrb(addr), .dib(fifo2buf), .dob(buf2fifo) );
-
- initial
- begin
- @(negedge rst);
- @(posedge clk);
- FillRAM;
-
- ResetBuffer;
- SetBufferRead(5,10);
- $display("Testing full read, no wait states.");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(6,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(5,10);
- $display("Testing full read, 2 wait states.");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(6,2);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(5,10);
- $display("Testing partial read, 0 wait states, then nothing after last.");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(3,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(5,10);
- $display("Testing partial read, 0 wait states, then done at same time as last.");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(2,0);
- ReadALine;
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(5,10);
- $display("Testing partial read, 3 wait states, then error at same time as last.");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(2,3);
- rd_error_i <= 1;
- ReadALine;
- rd_error_i <= 0;
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(500,511);
- $display("Testing full read, to the end of the buffer.");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(12,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(0,511);
- $display("Testing full read, start to end of the buffer.");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(512,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(505,3);
- $display("Testing full read, wraparound");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(11,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferWrite(10,15);
- $display("Testing Full Write, no wait states");
- while(!wr_ready_o)
- @(posedge clk);
- WriteLines(6,0,72);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferWrite(18,23);
- $display("Testing Full Write, 1 wait states");
- while(!wr_ready_o)
- @(posedge clk);
- WriteLines(6,1,101);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferWrite(27,40);
- $display("Testing Partial Write, 0 wait states");
- while(!wr_ready_o)
- @(posedge clk);
- WriteLines(6,0,201);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferWrite(45,200);
- $display("Testing Partial Write, 0 wait states, then done and write simultaneously");
- while(!wr_ready_o)
- @(posedge clk);
- wr_sop_i <= 1; wr_eop_i <= 0;
- WriteLines(6,0,301);
- wr_sop_i <= 0; wr_eop_i <= 1;
- WriteALine(400);
- wr_sop_i <= 0; wr_eop_i <= 0;
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferWrite(55,200);
- $display("Testing Partial Write, 0 wait states, then error");
- while(!wr_ready_o)
- @(posedge clk);
- WriteLines(6,0,501);
- wr_sop_i <= 1; wr_eop_i <= 1;
- WriteALine(400);
- @(posedge clk);
- repeat (10)
- @(posedge clk);
- wr_sop_i <= 0; wr_eop_i <= 0;
-
- ResetBuffer;
- SetBufferRead(0,82);
- $display("Testing read after all the writes");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(83,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferWrite(508,4);
- $display("Testing wraparound write");
- while(!wr_ready_o)
- @(posedge clk);
- WriteLines(9,0,601);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(506,10);
- $display("Reading wraparound write");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(17,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferWrite(0,511);
- $display("Testing Whole Buffer write");
- while(!wr_ready_o)
- @(posedge clk);
- WriteLines(512,0,1000);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(0,511);
- $display("Reading Whole Buffer write");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(512,0);
- repeat (10)
- @(posedge clk);
-
- /*
- ResetBuffer;
- SetBufferWrite(5,10);
- $display("Testing Write Too Many");
- while(!wr_ready_o)
- @(posedge clk);
- WriteLines(12,0,2000);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(0,15);
- $display("Reading back Write Too Many");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(16,0);
- repeat (10)
- @(posedge clk);
- */
- ResetBuffer;
- SetBufferWrite(15,20);
- $display("Testing Write One Less Than Full");
- while(!wr_ready_o)
- @(posedge clk);
- wr_sop_i <= 1; wr_eop_i <= 0;
- WriteALine(400);
- wr_sop_i <= 0; wr_eop_i <= 0;
- WriteLines(3,0,2000);
- wr_sop_i <= 0; wr_eop_i <= 1;
- WriteALine(400);
- wr_sop_i <= 0; wr_eop_i <= 0;
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- SetBufferRead(13,22);
- $display("Reading back Write One Less Than Full");
- while(!rd_sop_o)
- @(posedge clk);
- ReadLines(10,0);
- repeat (10)
- @(posedge clk);
-
- ResetBuffer;
- repeat(100)
- @(posedge clk);
- $finish;
- end
-
- always @(posedge clk)
- if(rd_read_i == 1'd1)
- $display("READ Buffer %d, rd_sop_o %d, rd_eop_o %d", rd_data_o, rd_sop_o, rd_eop_o);
-
- always @(posedge clk)
- if(wr_write_i == 1'd1)
- $display("WRITE Buffer %d, wr_ready_o %d, wr_full_o %d", wr_data_i, wr_ready_o, wr_full_o);
-
- initial begin
- $dumpfile("buffer_int_tb.lxt");
- $dumpvars(0,buffer_int_tb);
- end
-
- task FillRAM;
- begin
- ram_addr <= 0;
- ram_data <= 0;
- @(posedge clk);
- ram_en <= 1;
- ram_we <= 1;
- @(posedge clk);
- repeat (511)
- begin
- ram_addr <= ram_addr + 1;
- ram_data <= ram_data + 1;
- ram_en <= 1;
- ram_we <= 1;
- @(posedge clk);
- end
- ram_en <= 0;
- ram_we <= 0;
- @(posedge clk);
- $display("Filled the RAM");
- end
- endtask // FillRAM
-
- task ResetBuffer;
- begin
- clear <= 1; read <= 0; write <= 0;
- go <= 1;
- @(posedge clk);
- go <= 0;
- @(posedge clk);
- $display("Buffer Reset");
- end
- endtask // ClearBuffer
-
- task SetBufferWrite;
- input [8:0] start;
- input [8:0] stop;
- begin
- clear <= 0; read <= 0; write <= 1;
- firstline <= start;
- lastline <= stop;
- go <= 1;
- @(posedge clk);
- go <= 0;
- @(posedge clk);
- $display("Buffer Set for Write");
- end
- endtask // SetBufferWrite
-
- task SetBufferRead;
- input [8:0] start;
- input [8:0] stop;
- begin
- clear <= 0; read <= 1; write <= 0;
- firstline <= start;
- lastline <= stop;
- go <= 1;
- @(posedge clk);
- go <= 0;
- @(posedge clk);
- $display("Buffer Set for Read");
- end
- endtask // SetBufferRead
-
- task ReadALine;
- begin
- while(~rd_ready_o)
- @(posedge clk);
- #1 rd_read_i <= 1;
- @(posedge clk);
- rd_read_i <= 0;
- end
- endtask // ReadALine
-
- task ReadLines;
- input [9:0] lines;
- input [7:0] wait_states;
- begin
- $display("Read Lines: Number %d, Wait States %d",lines,wait_states);
- repeat (lines)
- begin
- ReadALine;
- repeat (wait_states)
- @(posedge clk);
- end
- end
- endtask // ReadLines
-
- task WriteALine;
- input [31:0] value;
- begin
- while(~wr_ready_o)
- @(posedge clk);
- #1 wr_write_i <= 1;
- wr_data_i <= value;
- @(posedge clk);
- wr_write_i <= 0;
- end
- endtask // WriteALine
-
- task WriteLines;
- input [9:0] lines;
- input [7:0] wait_states;
- input [31:0] value;
- begin
- $display("Write Lines: Number %d, Wait States %d",lines,wait_states);
- repeat(lines)
- begin
- value <= value + 1;
- WriteALine(value);
- repeat(wait_states)
- @(posedge clk);
- end
- end
- endtask // WriteLines
-
-endmodule // buffer_int_tb
diff --git a/usrp2/control_lib/newfifo/buffer_pool.v b/usrp2/control_lib/newfifo/buffer_pool.v
deleted file mode 100644
index 41ac1deb3..000000000
--- a/usrp2/control_lib/newfifo/buffer_pool.v
+++ /dev/null
@@ -1,283 +0,0 @@
-
-// Buffer pool. Contains 8 buffers, each 2K (512 by 32). Each buffer
-// is a dual-ported RAM. Port A on each of them is indirectly connected
-// to the wishbone bus by a bridge. Port B may be connected any one of the
-// 8 (4 rd, 4 wr) FIFO-like streaming interaces, or disconnected. The wishbone bus
-// provides access to all 8 buffers, and also controls the connections
-// between the ports and the buffers, allocating them as needed.
-
-// wb_adr is 16 bits --
-// bits 13:11 select which buffer
-// bits 10:2 select line in buffer
-// bits 1:0 are unused (32-bit access only)
-
-// BUF_SIZE is in address lines (i.e. log2 of number of lines).
-// For S3 it should be 9 (512 words, 2KB)
-// For V5 it should be at least 10 (1024 words, 4KB) or 11 (2048 words, 8KB)
-
-module buffer_pool
- #(parameter BUF_SIZE = 9,
- parameter SET_ADDR = 64)
- (input wb_clk_i,
- input wb_rst_i,
- input wb_we_i,
- input wb_stb_i,
- input [15:0] wb_adr_i,
- input [31:0] wb_dat_i,
- output [31:0] wb_dat_o,
- output reg wb_ack_o,
- output wb_err_o,
- output wb_rty_o,
-
- input stream_clk,
- input stream_rst,
-
- input set_stb, input [7:0] set_addr, input [31:0] set_data,
- output [31:0] status,
- output sys_int_o,
-
- output [31:0] s0, output [31:0] s1, output [31:0] s2, output [31:0] s3,
- output [31:0] s4, output [31:0] s5, output [31:0] s6, output [31:0] s7,
-
- // Write Interfaces
- input [31:0] wr0_data_i, input [3:0] wr0_flags_i, input wr0_ready_i, output wr0_ready_o,
- input [31:0] wr1_data_i, input [3:0] wr1_flags_i, input wr1_ready_i, output wr1_ready_o,
- input [31:0] wr2_data_i, input [3:0] wr2_flags_i, input wr2_ready_i, output wr2_ready_o,
- input [31:0] wr3_data_i, input [3:0] wr3_flags_i, input wr3_ready_i, output wr3_ready_o,
-
- // Read Interfaces
- output [31:0] rd0_data_o, output [3:0] rd0_flags_o, output rd0_ready_o, input rd0_ready_i,
- output [31:0] rd1_data_o, output [3:0] rd1_flags_o, output rd1_ready_o, input rd1_ready_i,
- output [31:0] rd2_data_o, output [3:0] rd2_flags_o, output rd2_ready_o, input rd2_ready_i,
- output [31:0] rd3_data_o, output [3:0] rd3_flags_o, output rd3_ready_o, input rd3_ready_i
- );
-
- wire [7:0] sel_a;
-
- wire [BUF_SIZE-1:0] buf_addra = wb_adr_i[BUF_SIZE+1:2]; // ignore address 1:0, 32-bit access only
- wire [2:0] which_buf = wb_adr_i[BUF_SIZE+4:BUF_SIZE+2]; // address 15:14 selects the buffer pool
-
- decoder_3_8 dec(.sel(which_buf),.res(sel_a));
-
- genvar i;
-
- wire go;
-
- reg [2:0] port[0:7];
- reg [3:0] read_src[0:3];
- reg [3:0] write_src[0:3];
-
- wire [7:0] done;
- wire [7:0] error;
- wire [7:0] idle;
-
- wire [31:0] buf_doa[0:7];
-
- wire [7:0] buf_enb;
- wire [7:0] buf_web;
- wire [BUF_SIZE-1:0] buf_addrb[0:7];
- wire [31:0] buf_dib[0:7];
- wire [31:0] buf_dob[0:7];
-
- wire [31:0] wr_data_i[0:7];
- wire [3:0] wr_flags_i[0:7];
- wire [7:0] wr_ready_i;
- wire [7:0] wr_ready_o;
-
- wire [31:0] rd_data_o[0:7];
- wire [3:0] rd_flags_o[0:7];
- wire [7:0] rd_ready_o;
- wire [7:0] rd_ready_i;
-
- assign status = {8'd0,idle[7:0],error[7:0],done[7:0]};
-
- assign s0 = buf_addrb[0];
- assign s1 = buf_addrb[1];
- assign s2 = buf_addrb[2];
- assign s3 = buf_addrb[3];
- assign s4 = buf_addrb[4];
- assign s5 = buf_addrb[5];
- assign s6 = buf_addrb[6];
- assign s7 = buf_addrb[7];
-
- wire [31:0] fifo_ctrl;
- setting_reg #(.my_addr(SET_ADDR))
- sreg(.clk(stream_clk),.rst(stream_rst),.strobe(set_stb),.addr(set_addr),.in(set_data),
- .out(fifo_ctrl),.changed(go));
-
- integer k;
- always @(posedge stream_clk)
- if(stream_rst)
- for(k=0;k<8;k=k+1)
- port[k] <= 4; // disabled
- else
- for(k=0;k<8;k=k+1)
- if(go & (fifo_ctrl[31:28]==k))
- port[k] <= fifo_ctrl[27:25];
-
- always @(posedge stream_clk)
- if(stream_rst)
- for(k=0;k<4;k=k+1)
- read_src[k] <= 8; // disabled
- else
- for(k=0;k<4;k=k+1)
- if(go & fifo_ctrl[22] & (fifo_ctrl[27:25]==k))
- read_src[k] <= fifo_ctrl[31:28];
-
- always @(posedge stream_clk)
- if(stream_rst)
- for(k=0;k<4;k=k+1)
- write_src[k] <= 8; // disabled
- else
- for(k=0;k<4;k=k+1)
- if(go & fifo_ctrl[23] & (fifo_ctrl[27:25]==k))
- write_src[k] <= fifo_ctrl[31:28];
-
- generate
- for(i=0;i<8;i=i+1)
- begin : gen_buffer
- RAMB16_S36_S36 dpram
- (.DOA(buf_doa[i]),.ADDRA(buf_addra),.CLKA(wb_clk_i),.DIA(wb_dat_i),.DIPA(4'h0),
- .ENA(wb_stb_i & sel_a[i]),.SSRA(0),.WEA(wb_we_i),
- .DOB(buf_dob[i]),.ADDRB(buf_addrb[i]),.CLKB(stream_clk),.DIB(buf_dib[i]),.DIPB(4'h0),
- .ENB(buf_enb[i]),.SSRB(0),.WEB(buf_web[i]) );
-
-/*
- ram_2port #(.DWIDTH(32),.AWIDTH(BUF_SIZE)) buffer
- (.clka(wb_clk_i),.ena(wb_stb_i & sel_a[i]),.wea(wb_we_i),
- .addra(buf_addra),.dia(wb_dat_i),.doa(buf_doa[i]),
- .clkb(stream_clk),.enb(buf_enb[i]),.web(buf_web[i]),
- .addrb(buf_addrb[i]),.dib(buf_dib[i]),.dob(buf_dob[i]));
-
- */
-
- buffer_int #(.BUF_NUM(i),.BUF_SIZE(BUF_SIZE)) buffer_int
- (.clk(stream_clk),.rst(stream_rst),
- .ctrl_word(fifo_ctrl),.go(go & (fifo_ctrl[31:28]==i)),
- .done(done[i]),.error(error[i]),.idle(idle[i]),
- .en_o(buf_enb[i]),
- .we_o(buf_web[i]),
- .addr_o(buf_addrb[i]),
- .dat_to_buf(buf_dib[i]),
- .dat_from_buf(buf_dob[i]),
- .wr_data_i(wr_data_i[i]),
- .wr_flags_i(wr_flags_i[i]),
- .wr_ready_i(wr_ready_i[i]),
- .wr_ready_o(wr_ready_o[i]),
- .rd_data_o(rd_data_o[i]),
- .rd_flags_o(rd_flags_o[i]),
- .rd_ready_o(rd_ready_o[i]),
- .rd_ready_i(rd_ready_i[i]) );
- mux4 #(.WIDTH(37))
- mux4_wr (.en(~port[i][2]),.sel(port[i][1:0]),
- .i0({wr0_data_i,wr0_flags_i,wr0_ready_i}),
- .i1({wr1_data_i,wr1_flags_i,wr1_ready_i}),
- .i2({wr2_data_i,wr2_flags_i,wr2_ready_i}),
- .i3({wr3_data_i,wr3_flags_i,wr3_ready_i}),
- .o({wr_data_i[i],wr_flags_i[i],wr_ready_i[i]}) );
- mux4 #(.WIDTH(1))
- mux4_rd (.en(~port[i][2]),.sel(port[i][1:0]),
- .i0(rd0_ready_i),.i1(rd1_ready_i),.i2(rd2_ready_i),.i3(rd3_ready_i),
- .o(rd_ready_i[i]));
- end // block: gen_buffer
- endgenerate
-
- //----------------------------------------------------------------------
- // Wishbone Outputs
-
- // Use the following lines if ram output and mux can be made fast enough
-
- assign wb_err_o = 1'b0; // Unused for now
- assign wb_rty_o = 1'b0; // Unused for now
-
- always @(posedge wb_clk_i)
- wb_ack_o <= wb_stb_i & ~wb_ack_o;
- assign wb_dat_o = buf_doa[which_buf];
-
- // Use this if we can't make the RAM+MUX fast enough
- // reg [31:0] wb_dat_o_reg;
- // reg stb_d1;
-
- // always @(posedge wb_clk_i)
- // begin
- // wb_dat_o_reg <= buf_doa[which_buf];
- // stb_d1 <= wb_stb_i;
- // wb_ack_o <= (stb_d1 & ~wb_ack_o) | (wb_we_i & wb_stb_i);
- // end
- //assign wb_dat_o = wb_dat_o_reg;
-
- mux8 #(.WIDTH(1))
- mux8_wr0(.en(~write_src[0][3]),.sel(write_src[0][2:0]),
- .i0(wr_ready_o[0]), .i1(wr_ready_o[1]), .i2(wr_ready_o[2]), .i3(wr_ready_o[3]),
- .i4(wr_ready_o[4]), .i5(wr_ready_o[5]), .i6(wr_ready_o[6]), .i7(wr_ready_o[7]),
- .o(wr0_ready_o));
-
- mux8 #(.WIDTH(1))
- mux8_wr1(.en(~write_src[1][3]),.sel(write_src[1][2:0]),
- .i0(wr_ready_o[0]), .i1(wr_ready_o[1]), .i2(wr_ready_o[2]), .i3(wr_ready_o[3]),
- .i4(wr_ready_o[4]), .i5(wr_ready_o[5]), .i6(wr_ready_o[6]), .i7(wr_ready_o[7]),
- .o(wr1_ready_o));
-
- mux8 #(.WIDTH(1))
- mux8_wr2(.en(~write_src[2][3]),.sel(write_src[2][2:0]),
- .i0(wr_ready_o[0]), .i1(wr_ready_o[1]), .i2(wr_ready_o[2]), .i3(wr_ready_o[3]),
- .i4(wr_ready_o[4]), .i5(wr_ready_o[5]), .i6(wr_ready_o[6]), .i7(wr_ready_o[7]),
- .o(wr2_ready_o));
-
- mux8 #(.WIDTH(1))
- mux8_wr3(.en(~write_src[3][3]),.sel(write_src[3][2:0]),
- .i0(wr_ready_o[0]), .i1(wr_ready_o[1]), .i2(wr_ready_o[2]), .i3(wr_ready_o[3]),
- .i4(wr_ready_o[4]), .i5(wr_ready_o[5]), .i6(wr_ready_o[6]), .i7(wr_ready_o[7]),
- .o(wr3_ready_o));
-
- mux8 #(.WIDTH(37))
- mux8_rd0(.en(~read_src[0][3]),.sel(read_src[0][2:0]),
- .i0({rd_data_o[0],rd_flags_o[0],rd_ready_o[0]}),
- .i1({rd_data_o[1],rd_flags_o[1],rd_ready_o[1]}),
- .i2({rd_data_o[2],rd_flags_o[2],rd_ready_o[2]}),
- .i3({rd_data_o[3],rd_flags_o[3],rd_ready_o[3]}),
- .i4({rd_data_o[4],rd_flags_o[4],rd_ready_o[4]}),
- .i5({rd_data_o[5],rd_flags_o[5],rd_ready_o[5]}),
- .i6({rd_data_o[6],rd_flags_o[6],rd_ready_o[6]}),
- .i7({rd_data_o[7],rd_flags_o[7],rd_ready_o[7]}),
- .o({rd0_data_o,rd0_flags_o,rd0_ready_o}));
-
- mux8 #(.WIDTH(37))
- mux8_rd1(.en(~read_src[1][3]),.sel(read_src[1][2:0]),
- .i0({rd_data_o[0],rd_flags_o[0],rd_ready_o[0]}),
- .i1({rd_data_o[1],rd_flags_o[1],rd_ready_o[1]}),
- .i2({rd_data_o[2],rd_flags_o[2],rd_ready_o[2]}),
- .i3({rd_data_o[3],rd_flags_o[3],rd_ready_o[3]}),
- .i4({rd_data_o[4],rd_flags_o[4],rd_ready_o[4]}),
- .i5({rd_data_o[5],rd_flags_o[5],rd_ready_o[5]}),
- .i6({rd_data_o[6],rd_flags_o[6],rd_ready_o[6]}),
- .i7({rd_data_o[7],rd_flags_o[7],rd_ready_o[7]}),
- .o({rd1_data_o,rd1_flags_o,rd1_ready_o}));
-
- mux8 #(.WIDTH(37))
- mux8_rd2(.en(~read_src[2][3]),.sel(read_src[2][2:0]),
- .i0({rd_data_o[0],rd_flags_o[0],rd_ready_o[0]}),
- .i1({rd_data_o[1],rd_flags_o[1],rd_ready_o[1]}),
- .i2({rd_data_o[2],rd_flags_o[2],rd_ready_o[2]}),
- .i3({rd_data_o[3],rd_flags_o[3],rd_ready_o[3]}),
- .i4({rd_data_o[4],rd_flags_o[4],rd_ready_o[4]}),
- .i5({rd_data_o[5],rd_flags_o[5],rd_ready_o[5]}),
- .i6({rd_data_o[6],rd_flags_o[6],rd_ready_o[6]}),
- .i7({rd_data_o[7],rd_flags_o[7],rd_ready_o[7]}),
- .o({rd2_data_o,rd2_flags_o,rd2_ready_o}));
-
- mux8 #(.WIDTH(37))
- mux8_rd3(.en(~read_src[3][3]),.sel(read_src[3][2:0]),
- .i0({rd_data_o[0],rd_flags_o[0],rd_ready_o[0]}),
- .i1({rd_data_o[1],rd_flags_o[1],rd_ready_o[1]}),
- .i2({rd_data_o[2],rd_flags_o[2],rd_ready_o[2]}),
- .i3({rd_data_o[3],rd_flags_o[3],rd_ready_o[3]}),
- .i4({rd_data_o[4],rd_flags_o[4],rd_ready_o[4]}),
- .i5({rd_data_o[5],rd_flags_o[5],rd_ready_o[5]}),
- .i6({rd_data_o[6],rd_flags_o[6],rd_ready_o[6]}),
- .i7({rd_data_o[7],rd_flags_o[7],rd_ready_o[7]}),
- .o({rd3_data_o,rd3_flags_o,rd3_ready_o}));
-
- assign sys_int_o = (|error) | (|done);
-
-endmodule // buffer_pool
diff --git a/usrp2/control_lib/newfifo/buffer_pool_tb.v b/usrp2/control_lib/newfifo/buffer_pool_tb.v
deleted file mode 100644
index 91a01d268..000000000
--- a/usrp2/control_lib/newfifo/buffer_pool_tb.v
+++ /dev/null
@@ -1,58 +0,0 @@
-
-module buffer_pool_tb();
-
- wire wb_clk_i;
- wire wb_rst_i;
- wire wb_we_i;
- wire wb_stb_i;
- wire [15:0] wb_adr_i;
- wire [31:0] wb_dat_i;
- wire [31:0] wb_dat_o;
- wire wb_ack_o;
- wire wb_err_o;
- wire wb_rty_o;
-
- wire stream_clk, stream_rst;
-
- wire set_stb;
- wire [7:0] set_addr;
- wire [31:0] set_data;
-
- wire [31:0] wr0_data, wr1_data, wr2_data, wr3_data;
- wire [31:0] rd0_data, rd1_data, rd2_data, rd3_data;
- wire [3:0] wr0_flags, wr1_flags, wr2_flags, wr3_flags;
- wire [3:0] rd0_flags, rd1_flags, rd2_flags, rd3_flags;
- wire wr0_ready, wr1_ready, wr2_ready, wr3_ready;
- wire rd0_ready, rd1_ready, rd2_ready, rd3_ready;
- wire wr0_write, wr1_write, wr2_write, wr3_write;
- wire rd0_read, rd1_read, rd2_read, rd3_read;
-
- buffer_pool dut
- (.wb_clk_i(wb_clk_i),
- .wb_rst_i(wb_rst_i),
- .wb_we_i(wb_we_i),
- .wb_stb_i(wb_stb_i),
- .wb_adr_i(wb_adr_i),
- .wb_dat_i(wb_dat_i),
- .wb_dat_o(wb_dat_o),
- .wb_ack_o(wb_ack_o),
- .wb_err_o(wb_err_o),
- .wb_rty_o(wb_rty_o),
-
- .stream_clk(stream_clk),
- .stream_rst(stream_rst),
-
- .set_stb(set_stb),.set_addr(set_addr),.set_data(set_data),
-
- .wr0_data_i(wr0_data), .wr0_write_i(wr0_write), .wr0_flags_i(wr0_flags), .wr0_ready_o(wr0_ready),
- .wr1_data_i(wr1_data), .wr1_write_i(wr1_write), .wr1_flags_i(wr1_flags), .wr1_ready_o(wr1_ready),
- .wr2_data_i(wr2_data), .wr2_write_i(wr2_write), .wr2_flags_i(wr2_flags), .wr2_ready_o(wr2_ready),
- .wr3_data_i(wr3_data), .wr3_write_i(wr3_write), .wr3_flags_i(wr3_flags), .wr3_ready_o(wr3_ready),
-
- .rd0_data_o(rd0_data), .rd0_read_i(rd0_read), .rd0_flags_o(rd0_flags), .rd0_ready_o(rd0_ready),
- .rd1_data_o(rd1_data), .rd1_read_i(rd1_read), .rd1_flags_o(rd1_flags), .rd1_ready_o(rd1_ready),
- .rd2_data_o(rd2_data), .rd2_read_i(rd2_read), .rd2_flags_o(rd2_flags), .rd2_ready_o(rd2_ready),
- .rd3_data_o(rd3_data), .rd3_read_i(rd3_read), .rd3_flags_o(rd3_flags), .rd3_ready_o(rd3_ready)
- );
-
-endmodule // buffer_pool_tb
diff --git a/usrp2/control_lib/newfifo/fifo19_to_fifo36.v b/usrp2/control_lib/newfifo/fifo19_to_fifo36.v
deleted file mode 100644
index 0e6bcea68..000000000
--- a/usrp2/control_lib/newfifo/fifo19_to_fifo36.v
+++ /dev/null
@@ -1,82 +0,0 @@
-
-// Parameter LE tells us if we are little-endian.
-// Little-endian means send lower 16 bits first.
-// Default is big endian (network order), send upper bits first.
-
-module fifo19_to_fifo36
- #(parameter LE=0)
- (input clk, input reset, input clear,
- input [18:0] f19_datain,
- input f19_src_rdy_i,
- output f19_dst_rdy_o,
-
- output [35:0] f36_dataout,
- output f36_src_rdy_o,
- input f36_dst_rdy_i,
- output [31:0] debug
- );
-
- reg f36_sof, f36_eof, f36_occ;
-
- reg [1:0] state;
- reg [15:0] dat0, dat1;
-
- wire f19_sof = f19_datain[16];
- wire f19_eof = f19_datain[17];
- wire f19_occ = f19_datain[18];
-
- wire xfer_out = f36_src_rdy_o & f36_dst_rdy_i;
-
- always @(posedge clk)
- if(f19_src_rdy_i & ((state==0)|xfer_out))
- f36_sof <= f19_sof;
-
- always @(posedge clk)
- if(f19_src_rdy_i & ((state != 2)|xfer_out))
- f36_eof <= f19_eof;
-
- always @(posedge clk) // FIXME check this
- if(f19_eof)
- f36_occ <= {state[0],f19_occ};
- else
- f36_occ <= 0;
-
- always @(posedge clk)
- if(reset)
- state <= 0;
- else
- if(f19_src_rdy_i)
- case(state)
- 0 :
- if(f19_eof)
- state <= 2;
- else
- state <= 1;
- 1 :
- state <= 2;
- 2 :
- if(xfer_out)
- if(~f19_eof)
- state <= 1;
- // remain in state 2 if we are at eof
- endcase // case(state)
- else
- if(xfer_out)
- state <= 0;
-
- always @(posedge clk)
- if(f19_src_rdy_i & (state==1))
- dat1 <= f19_datain;
-
- always @(posedge clk)
- if(f19_src_rdy_i & ((state==0) | xfer_out))
- dat0 <= f19_datain;
-
- assign f19_dst_rdy_o = xfer_out | (state != 2);
- assign f36_dataout = LE ? {f36_occ,f36_eof,f36_sof,dat1,dat0} :
- {f36_occ,f36_eof,f36_sof,dat0,dat1};
- assign f36_src_rdy_o = (state == 2);
-
- assign debug = state;
-
-endmodule // fifo19_to_fifo36
diff --git a/usrp2/control_lib/newfifo/fifo19_to_ll8.v b/usrp2/control_lib/newfifo/fifo19_to_ll8.v
deleted file mode 100644
index 4707f7523..000000000
--- a/usrp2/control_lib/newfifo/fifo19_to_ll8.v
+++ /dev/null
@@ -1,53 +0,0 @@
-
-module fifo19_to_ll8
- (input clk, input reset, input clear,
- input [18:0] f19_data,
- input f19_src_rdy_i,
- output f19_dst_rdy_o,
-
- output reg [7:0] ll_data,
- output ll_sof_n,
- output ll_eof_n,
- output ll_src_rdy_n,
- input ll_dst_rdy_n);
-
- wire ll_sof, ll_eof, ll_src_rdy;
- assign ll_sof_n = ~ll_sof;
- assign ll_eof_n = ~ll_eof;
- assign ll_src_rdy_n = ~ll_src_rdy;
- wire ll_dst_rdy = ~ll_dst_rdy_n;
-
- wire f19_sof = f19_data[16];
- wire f19_eof = f19_data[17];
- wire f19_occ = f19_data[18];
-
- wire advance, end_early;
- reg state;
-
- always @(posedge clk)
- if(reset)
- state <= 0;
- else
- if(advance)
- if(ll_eof)
- state <= 0;
- else
- state <= state + 1;
-
- always @*
- case(state)
- 0 : ll_data = f19_data[15:8];
- 1 : ll_data = f19_data[7:0];
- default : ll_data = f19_data[15:8];
- endcase // case (state)
-
- assign ll_sof = (state==0) & f19_sof;
- assign ll_eof = f19_eof & ((f19_occ==1)|(state==1));
-
- assign ll_src_rdy = f19_src_rdy_i;
-
- assign advance = ll_src_rdy & ll_dst_rdy;
- assign f19_dst_rdy_o = advance & ((state==1)|ll_eof);
-
-endmodule // fifo19_to_ll8
-
diff --git a/usrp2/control_lib/newfifo/fifo36_to_fifo19.v b/usrp2/control_lib/newfifo/fifo36_to_fifo19.v
deleted file mode 100644
index 517a2a476..000000000
--- a/usrp2/control_lib/newfifo/fifo36_to_fifo19.v
+++ /dev/null
@@ -1,45 +0,0 @@
-
-// Parameter LE tells us if we are little-endian.
-// Little-endian means send lower 16 bits first.
-// Default is big endian (network order), send upper bits first.
-
-module fifo36_to_fifo19
- #(parameter LE=0)
- (input clk, input reset, input clear,
- input [35:0] f36_datain,
- input f36_src_rdy_i,
- output f36_dst_rdy_o,
-
- output [18:0] f19_dataout,
- output f19_src_rdy_o,
- input f19_dst_rdy_i );
-
- wire f36_sof = f36_datain[32];
- wire f36_eof = f36_datain[33];
- wire f36_occ = f36_datain[35:34];
-
- reg phase;
-
- wire half_line = f36_eof & ((f36_occ==1)|(f36_occ==2));
-
- assign f19_dataout[15:0] = (LE ^ phase) ? f36_datain[15:0] : f36_datain[31:16];
- assign f19_dataout[16] = phase ? 0 : f36_sof;
- assign f19_dataout[17] = phase ? f36_eof : half_line;
- assign f19_dataout[18] = f19_dataout[17] & ((f36_occ==1)|(f36_occ==3));
-
- assign f19_src_rdy_o = f36_src_rdy_i;
- assign f36_dst_rdy_o = (phase | half_line) & f19_dst_rdy_i;
-
- wire f19_xfer = f19_src_rdy_o & f19_dst_rdy_i;
- wire f36_xfer = f36_src_rdy_i & f36_dst_rdy_o;
-
- always @(posedge clk)
- if(reset)
- phase <= 0;
- else if(f36_xfer)
- phase <= 0;
- else if(f19_xfer)
- phase <= 1;
-
-
-endmodule // fifo36_to_fifo19
diff --git a/usrp2/control_lib/newfifo/fifo36_to_ll8.v b/usrp2/control_lib/newfifo/fifo36_to_ll8.v
deleted file mode 100644
index 9604d0e38..000000000
--- a/usrp2/control_lib/newfifo/fifo36_to_ll8.v
+++ /dev/null
@@ -1,59 +0,0 @@
-
-module fifo36_to_ll8
- (input clk, input reset, input clear,
- input [35:0] f36_data,
- input f36_src_rdy_i,
- output f36_dst_rdy_o,
-
- output reg [7:0] ll_data,
- output ll_sof_n,
- output ll_eof_n,
- output ll_src_rdy_n,
- input ll_dst_rdy_n,
-
- output [31:0] debug);
-
- wire ll_sof, ll_eof, ll_src_rdy;
- assign ll_sof_n = ~ll_sof;
- assign ll_eof_n = ~ll_eof;
- assign ll_src_rdy_n = ~ll_src_rdy;
- wire ll_dst_rdy = ~ll_dst_rdy_n;
-
- wire f36_sof = f36_data[32];
- wire f36_eof = f36_data[33];
- wire f36_occ = f36_data[35:34];
- wire advance, end_early;
- reg [1:0] state;
- assign debug = {29'b0,state};
-
- always @(posedge clk)
- if(reset)
- state <= 0;
- else
- if(advance)
- if(ll_eof)
- state <= 0;
- else
- state <= state + 1;
-
- always @*
- case(state)
- 0 : ll_data = f36_data[31:24];
- 1 : ll_data = f36_data[23:16];
- 2 : ll_data = f36_data[15:8];
- 3 : ll_data = f36_data[7:0];
- default : ll_data = f36_data[31:24];
- endcase // case (state)
-
- assign ll_sof = (state==0) & f36_sof;
- assign ll_eof = f36_eof & (((state==0)&(f36_occ==1)) |
- ((state==1)&(f36_occ==2)) |
- ((state==2)&(f36_occ==3)) |
- (state==3));
-
- assign ll_src_rdy = f36_src_rdy_i;
-
- assign advance = ll_src_rdy & ll_dst_rdy;
- assign f36_dst_rdy_o = advance & ((state==3)|ll_eof);
-
-endmodule // ll8_to_fifo36
diff --git a/usrp2/control_lib/newfifo/fifo_2clock.v b/usrp2/control_lib/newfifo/fifo_2clock.v
deleted file mode 100644
index 34c85ccb4..000000000
--- a/usrp2/control_lib/newfifo/fifo_2clock.v
+++ /dev/null
@@ -1,117 +0,0 @@
-
-// FIXME ignores the AWIDTH (fifo size) parameter
-
-module fifo_2clock
- #(parameter WIDTH=36, SIZE=6)
- (input wclk, input [WIDTH-1:0] datain, input src_rdy_i, output dst_rdy_o, output [15:0] space,
- input rclk, output [WIDTH-1:0] dataout, output src_rdy_o, input dst_rdy_i, output [15:0] occupied,
- input arst);
-
- wire [SIZE:0] level_rclk, level_wclk; // xilinx adds an extra bit if you ask for accurate levels
- wire full, empty, write, read;
-
- assign dst_rdy_o = ~full;
- assign src_rdy_o = ~empty;
- assign write = src_rdy_i & dst_rdy_o;
- assign read = src_rdy_o & dst_rdy_i;
-
- generate
- if(WIDTH==36)
- if(SIZE==9)
- fifo_xlnx_512x36_2clk fifo_xlnx_512x36_2clk
- (.rst(arst),
- .wr_clk(wclk),.din(datain),.full(full),.wr_en(write),.wr_data_count(level_wclk),
- .rd_clk(rclk),.dout(dataout),.empty(empty),.rd_en(read),.rd_data_count(level_rclk) );
- else if(SIZE==11)
- fifo_xlnx_2Kx36_2clk fifo_xlnx_2Kx36_2clk
- (.rst(arst),
- .wr_clk(wclk),.din(datain),.full(full),.wr_en(write),.wr_data_count(level_wclk),
- .rd_clk(rclk),.dout(dataout),.empty(empty),.rd_en(read),.rd_data_count(level_rclk) );
- else if(SIZE==6)
- fifo_xlnx_64x36_2clk fifo_xlnx_64x36_2clk
- (.rst(arst),
- .wr_clk(wclk),.din(datain),.full(full),.wr_en(write),.wr_data_count(level_wclk),
- .rd_clk(rclk),.dout(dataout),.empty(empty),.rd_en(read),.rd_data_count(level_rclk) );
- else
- fifo_xlnx_512x36_2clk fifo_xlnx_512x36_2clk
- (.rst(arst),
- .wr_clk(wclk),.din(datain),.full(full),.wr_en(write),.wr_data_count(level_wclk),
- .rd_clk(rclk),.dout(dataout),.empty(empty),.rd_en(read),.rd_data_count(level_rclk) );
- else if((WIDTH==19)|(WIDTH==18))
- if(SIZE==4)
- fifo_xlnx_16x19_2clk fifo_xlnx_16x19_2clk
- (.rst(arst),
- .wr_clk(wclk),.din(datain),.full(full),.wr_en(write),.wr_data_count(level_wclk),
- .rd_clk(rclk),.dout(dataout),.empty(empty),.rd_en(read),.rd_data_count(level_rclk) );
- endgenerate
-
- assign occupied = {{(16-SIZE-1){1'b0}},level_rclk};
- assign space = ((1<<SIZE)+1)-level_wclk;
-
-endmodule // fifo_2clock
-
-/*
-`else
- // ISE sucks, so the following doesn't work properly
-
- reg [AWIDTH-1:0] wr_addr, rd_addr;
- wire [AWIDTH-1:0] wr_addr_rclk, rd_addr_wclk;
- wire [AWIDTH-1:0] next_rd_addr;
- wire enb_read;
-
- // Write side management
- wire [AWIDTH-1:0] next_wr_addr = wr_addr + 1;
- always @(posedge wclk or posedge arst)
- if(arst)
- wr_addr <= 0;
- else if(write)
- wr_addr <= next_wr_addr;
- assign full = (next_wr_addr == rd_addr_wclk);
-
- // RAM for data storage. Data out is registered, complicating the
- // read side logic
- ram_2port #(.DWIDTH(DWIDTH),.AWIDTH(AWIDTH)) mac_rx_ff_ram
- (.clka(wclk),.ena(1'b1),.wea(write),.addra(wr_addr),.dia(datain),.doa(),
- .clkb(rclk),.enb(enb_read),.web(1'b0),.addrb(next_rd_addr),.dib(0),.dob(dataout) );
-
- // Read side management
- reg data_valid;
- assign empty = ~data_valid;
- assign next_rd_addr = rd_addr + data_valid;
- assign enb_read = read | ~data_valid;
-
- always @(posedge rclk or posedge arst)
- if(arst)
- rd_addr <= 0;
- else if(read)
- rd_addr <= rd_addr + 1;
-
- always @(posedge rclk or posedge arst)
- if(arst)
- data_valid <= 0;
- else
- if(read & (next_rd_addr == wr_addr_rclk))
- data_valid <= 0;
- else if(next_rd_addr != wr_addr_rclk)
- data_valid <= 1;
-
- // Send pointers across clock domains via gray code
- gray_send #(.WIDTH(AWIDTH)) send_wr_addr
- (.clk_in(wclk),.addr_in(wr_addr),
- .clk_out(rclk),.addr_out(wr_addr_rclk) );
-
- gray_send #(.WIDTH(AWIDTH)) send_rd_addr
- (.clk_in(rclk),.addr_in(rd_addr),
- .clk_out(wclk),.addr_out(rd_addr_wclk) );
-
- // Generate fullness info, these are approximate and may be delayed
- // and are only for higher-level flow control.
- // Only full and empty are guaranteed exact.
- always @(posedge wclk)
- level_wclk <= wr_addr - rd_addr_wclk;
- always @(posedge rclk)
- level_rclk <= wr_addr_rclk - rd_addr;
-`endif
-endmodule // fifo_2clock
-
-*/
diff --git a/usrp2/control_lib/newfifo/fifo_2clock_cascade.v b/usrp2/control_lib/newfifo/fifo_2clock_cascade.v
deleted file mode 100644
index 5ce726977..000000000
--- a/usrp2/control_lib/newfifo/fifo_2clock_cascade.v
+++ /dev/null
@@ -1,35 +0,0 @@
-
-module fifo_2clock_cascade
- #(parameter WIDTH=32, SIZE=9)
- (input wclk, input [WIDTH-1:0] datain, input src_rdy_i, output dst_rdy_o, output [15:0] space,
- input rclk, output [WIDTH-1:0] dataout, output src_rdy_o, input dst_rdy_i, output [15:0] occupied,
- input arst);
-
- wire [WIDTH-1:0] data_int1, data_int2;
- wire src_rdy_int1, src_rdy_int2, dst_rdy_int1, dst_rdy_int2;
- wire [SIZE-1:0] level_wclk, level_rclk;
- wire [4:0] s1_space, s1_occupied, s2_space, s2_occupied;
- wire [15:0] l_space, l_occupied;
-
- fifo_short #(.WIDTH(WIDTH)) shortfifo
- (.clk(wclk), .reset(arst), .clear(0),
- .datain(datain), .src_rdy_i(src_rdy_i), .dst_rdy_o(dst_rdy_o),
- .dataout(data_int1), .src_rdy_o(src_rdy_int1), .dst_rdy_i(dst_rdy_int1),
- .space(s1_space), .occupied(s1_occupied) );
-
- fifo_2clock #(.WIDTH(WIDTH),.SIZE(SIZE)) fifo_2clock
- (.wclk(wclk), .datain(data_int1), .src_rdy_i(src_rdy_int1), .dst_rdy_o(dst_rdy_int1), .space(l_space),
- .rclk(rclk), .dataout(data_int2), .src_rdy_o(src_rdy_int2), .dst_rdy_i(dst_rdy_int2), .occupied(l_occupied),
- .arst(arst) );
-
- fifo_short #(.WIDTH(WIDTH)) shortfifo2
- (.clk(rclk), .reset(arst), .clear(0),
- .datain(data_int2), .src_rdy_i(src_rdy_int2), .dst_rdy_o(dst_rdy_int2),
- .dataout(dataout), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i),
- .space(s2_space), .occupied(s2_occupied));
-
- // Be conservative -- Only advertise space from input side of fifo, occupied from output side
- assign space = {11'b0,s1_space} + l_space;
- assign occupied = {11'b0,s2_occupied} + l_occupied;
-
-endmodule // fifo_2clock_cascade
diff --git a/usrp2/control_lib/newfifo/fifo_cascade.v b/usrp2/control_lib/newfifo/fifo_cascade.v
deleted file mode 100644
index fdd8449bc..000000000
--- a/usrp2/control_lib/newfifo/fifo_cascade.v
+++ /dev/null
@@ -1,52 +0,0 @@
-
-
-// This FIFO exists to provide an intermediate point for the data on its
-// long trek from one RAM (in the buffer pool) to another (in the longfifo)
-// The shortfifo is more flexible in its placement since it is based on
-// distributed RAM
-
-// This one has the shortfifo on both the in and out sides.
-module fifo_cascade
- #(parameter WIDTH=32, SIZE=9)
- (input clk, input reset, input clear,
- input [WIDTH-1:0] datain,
- input src_rdy_i,
- output dst_rdy_o,
- output [WIDTH-1:0] dataout,
- output src_rdy_o,
- input dst_rdy_i,
- output [15:0] space,
- output [15:0] occupied);
-
- wire [WIDTH-1:0] data_int, data_int2;
- wire src_rdy_1, dst_rdy_1, src_rdy_2, dst_rdy_2;
-
- wire [4:0] s1_space, s1_occupied, s2_space, s2_occupied;
- wire [15:0] l_space, l_occupied;
-
- fifo_short #(.WIDTH(WIDTH)) head_fifo
- (.clk(clk),.reset(reset),.clear(clear),
- .datain(datain), .src_rdy_i(src_rdy_i), .dst_rdy_o(dst_rdy_o),
- .dataout(data_int), .src_rdy_o(src_rdy_1), .dst_rdy_i(dst_rdy_1),
- .space(s1_space),.occupied(s1_occupied) );
-
- fifo_long #(.WIDTH(WIDTH),.SIZE(SIZE)) middle_fifo
- (.clk(clk),.reset(reset),.clear(clear),
- .datain(data_int), .src_rdy_i(src_rdy_1), .dst_rdy_o(dst_rdy_1),
- .dataout(data_int2), .src_rdy_o(src_rdy_2), .dst_rdy_i(dst_rdy_2),
- .space(l_space),.occupied(l_occupied) );
-
- fifo_short #(.WIDTH(WIDTH)) tail_fifo
- (.clk(clk),.reset(reset),.clear(clear),
- .datain(data_int2), .src_rdy_i(src_rdy_2), .dst_rdy_o(dst_rdy_2),
- .dataout(dataout), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i),
- .space(s2_space),.occupied(s2_occupied) );
-
- assign space = {11'b0,s1_space} + {11'b0,s2_space} + l_space;
- assign occupied = {11'b0,s1_occupied} + {11'b0,s2_occupied} + l_occupied;
-
-endmodule // cascadefifo2
-
-
-
-
diff --git a/usrp2/control_lib/newfifo/fifo_long.v b/usrp2/control_lib/newfifo/fifo_long.v
deleted file mode 100644
index 0426779f6..000000000
--- a/usrp2/control_lib/newfifo/fifo_long.v
+++ /dev/null
@@ -1,148 +0,0 @@
-
-// FIFO intended to be interchangeable with shortfifo, but
-// based on block ram instead of SRL16's
-// only one clock domain
-
-// Port A is write port, Port B is read port
-
-module fifo_long
- #(parameter WIDTH=32, SIZE=9)
- (input clk, input reset, input clear,
- input [WIDTH-1:0] datain,
- input src_rdy_i,
- output dst_rdy_o,
- output [WIDTH-1:0] dataout,
- output src_rdy_o,
- input dst_rdy_i,
-
- output reg [15:0] space,
- output reg [15:0] occupied);
-
- wire write = src_rdy_i & dst_rdy_o;
- wire read = dst_rdy_i & src_rdy_o;
- wire full, empty;
-
- assign dst_rdy_o = ~full;
- assign src_rdy_o = ~empty;
-
- // Read side states
- localparam EMPTY = 0;
- localparam PRE_READ = 1;
- localparam READING = 2;
-
- reg [SIZE-1:0] wr_addr, rd_addr;
- reg [1:0] read_state;
-
- reg empty_reg, full_reg;
- always @(posedge clk)
- if(reset)
- wr_addr <= 0;
- else if(clear)
- wr_addr <= 0;
- else if(write)
- wr_addr <= wr_addr + 1;
-
- ram_2port #(.DWIDTH(WIDTH),.AWIDTH(SIZE))
- ram (.clka(clk),
- .ena(1'b1),
- .wea(write),
- .addra(wr_addr),
- .dia(datain),
- .doa(),
-
- .clkb(clk),
- .enb((read_state==PRE_READ)|read),
- .web(0),
- .addrb(rd_addr),
- .dib(0),
- .dob(dataout));
-
- always @(posedge clk)
- if(reset)
- begin
- read_state <= EMPTY;
- rd_addr <= 0;
- empty_reg <= 1;
- end
- else
- if(clear)
- begin
- read_state <= EMPTY;
- rd_addr <= 0;
- empty_reg <= 1;
- end
- else
- case(read_state)
- EMPTY :
- if(write)
- begin
- //rd_addr <= wr_addr;
- read_state <= PRE_READ;
- end
- PRE_READ :
- begin
- read_state <= READING;
- empty_reg <= 0;
- rd_addr <= rd_addr + 1;
- end
-
- READING :
- if(read)
- if(rd_addr == wr_addr)
- begin
- empty_reg <= 1;
- if(write)
- read_state <= PRE_READ;
- else
- read_state <= EMPTY;
- end
- else
- rd_addr <= rd_addr + 1;
- endcase // case(read_state)
-
- wire [SIZE-1:0] dont_write_past_me = rd_addr - 3;
- wire becoming_full = wr_addr == dont_write_past_me;
-
- always @(posedge clk)
- if(reset)
- full_reg <= 0;
- else if(clear)
- full_reg <= 0;
- else if(read & ~write)
- full_reg <= 0;
- //else if(write & ~read & (wr_addr == (rd_addr-3)))
- else if(write & ~read & becoming_full)
- full_reg <= 1;
-
- //assign empty = (read_state != READING);
- assign empty = empty_reg;
-
- // assign full = ((rd_addr - 1) == wr_addr);
- assign full = full_reg;
-
- //////////////////////////////////////////////
- // space and occupied are for diagnostics only
- // not guaranteed exact
-
- localparam NUMLINES = (1<<SIZE)-2;
- always @(posedge clk)
- if(reset)
- space <= NUMLINES;
- else if(clear)
- space <= NUMLINES;
- else if(read & ~write)
- space <= space + 1;
- else if(write & ~read)
- space <= space - 1;
-
- always @(posedge clk)
- if(reset)
- occupied <= 0;
- else if(clear)
- occupied <= 0;
- else if(read & ~write)
- occupied <= occupied - 1;
- else if(write & ~read)
- occupied <= occupied + 1;
-
-endmodule // fifo_long
diff --git a/usrp2/control_lib/newfifo/fifo_new_tb.vcd b/usrp2/control_lib/newfifo/fifo_new_tb.vcd
deleted file mode 100644
index 796889e7d..000000000
--- a/usrp2/control_lib/newfifo/fifo_new_tb.vcd
+++ /dev/null
@@ -1,5506 +0,0 @@
-$date
- Thu Mar 19 17:21:11 2009
-$end
-$version
- Icarus Verilog
-$end
-$timescale
- 1ps
-$end
-$scope module fifo_new_tb $end
-$var wire 1 ! dst_rdy_f36i $end
-$var wire 36 " f36_in [35:0] $end
-$var wire 36 # i1 [35:0] $end
-$var wire 1 $ i1_dr $end
-$var wire 1 % i1_sr $end
-$var wire 19 & i2 [18:0] $end
-$var wire 1 ' i2_dr $end
-$var wire 1 ( i2_sr $end
-$var wire 19 ) i3 [18:0] $end
-$var wire 1 * i3_dr $end
-$var wire 1 + i3_sr $end
-$var wire 36 , i4 [35:0] $end
-$var wire 1 - i4_sr $end
-$var wire 8 . ll_data [7:0] $end
-$var wire 1 / ll_dst_rdy_n $end
-$var wire 1 0 ll_eof_n $end
-$var wire 1 1 ll_sof_n $end
-$var wire 1 2 ll_src_rdy_n $end
-$var reg 1 3 clear $end
-$var reg 1 4 clk $end
-$var reg 16 5 count [15:0] $end
-$var reg 1 6 dst_rdy_f36o $end
-$var reg 32 7 f36_data [31:0] $end
-$var reg 1 8 f36_eof $end
-$var reg 2 9 f36_occ [1:0] $end
-$var reg 1 : f36_sof $end
-$var reg 1 ; i4_dr $end
-$var reg 1 < rst $end
-$var reg 1 = src_rdy_f36i $end
-$scope module fifo_short1 $end
-$var wire 1 > clear $end
-$var wire 1 ? clk $end
-$var wire 36 @ datain [35:0] $end
-$var wire 36 A dataout [35:0] $end
-$var wire 1 $ dst_rdy_i $end
-$var wire 1 ! dst_rdy_o $end
-$var wire 1 B read $end
-$var wire 1 C reset $end
-$var wire 1 D src_rdy_i $end
-$var wire 1 % src_rdy_o $end
-$var wire 1 E write $end
-$var reg 4 F a [3:0] $end
-$var reg 1 G empty $end
-$var reg 1 H full $end
-$var reg 5 I occupied [4:0] $end
-$var reg 5 J space [4:0] $end
-$scope begin gen_srl16[0] $end
-$scope module srl16e $end
-$var wire 1 K A0 $end
-$var wire 1 L A1 $end
-$var wire 1 M A2 $end
-$var wire 1 N A3 $end
-$var wire 1 E CE $end
-$var wire 1 ? CLK $end
-$var wire 1 O D $end
-$var wire 1 P Q $end
-$var reg 16 Q data [15:0] $end
-$upscope $end
-$upscope $end
-$scope begin gen_srl16[1] $end
-$scope module srl16e $end
-$var wire 1 R A0 $end
-$var wire 1 S A1 $end
-$var wire 1 T A2 $end
-$var wire 1 U A3 $end
-$var wire 1 E CE $end
-$var wire 1 ? CLK $end
-$var wire 1 V D $end
-$var wire 1 W Q $end
-$var reg 16 X data [15:0] $end
-$upscope $end
-$upscope $end
-$scope begin gen_srl16[2] $end
-$scope module srl16e $end
-$var wire 1 Y A0 $end
-$var wire 1 Z A1 $end
-$var wire 1 [ A2 $end
-$var wire 1 \ A3 $end
-$var wire 1 E CE $end
-$var wire 1 ? CLK $end
-$var wire 1 ] D $end
-$var wire 1 ^ Q $end
-$var reg 16 _ data [15:0] $end
-$upscope $end
-$upscope $end
-$scope begin gen_srl16[3] $end
-$scope module srl16e $end
-$var wire 1 ` A0 $end
-$var wire 1 a A1 $end
-$var wire 1 b A2 $end
-$var wire 1 c A3 $end
-$var wire 1 E CE $end
-$var wire 1 ? CLK $end
-$var wire 1 d D $end
-$var wire 1 e Q $end
-$var reg 16 f data [15:0] $end
-$upscope $end
-$upscope $end
-$scope begin gen_srl16[4] $end
-$scope module srl16e $end
-$var wire 1 g A0 $end
-$var wire 1 h A1 $end
-$var wire 1 i A2 $end
-$var wire 1 j A3 $end
-$var wire 1 E CE $end
-$var wire 1 ? CLK $end
-$var wire 1 k D $end
-$var wire 1 l Q $end
-$var reg 16 m data [15:0] $end
-$upscope $end
-$upscope $end
-$scope begin gen_srl16[5] $end
-$scope module srl16e $end
-$var wire 1 n A0 $end
-$var wire 1 o A1 $end
-$var wire 1 p A2 $end
-$var wire 1 q A3 $end
-$var wire 1 E CE $end
-$var wire 1 ? CLK $end
-$var wire 1 r D $end
-$var wire 1 s Q $end
-$var reg 16 t data [15:0] $end
-$upscope $end
-$upscope $end
-$scope begin gen_srl16[6] $end
-$scope module srl16e $end
-$var wire 1 u A0 $end
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-#0
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diff --git a/usrp2/control_lib/newfifo/fifo_short.v b/usrp2/control_lib/newfifo/fifo_short.v
deleted file mode 100644
index 53a7603c7..000000000
--- a/usrp2/control_lib/newfifo/fifo_short.v
+++ /dev/null
@@ -1,95 +0,0 @@
-
-module fifo_short
- #(parameter WIDTH=32)
- (input clk, input reset, input clear,
- input [WIDTH-1:0] datain,
- input src_rdy_i,
- output dst_rdy_o,
- output [WIDTH-1:0] dataout,
- output src_rdy_o,
- input dst_rdy_i,
-
- output reg [4:0] space,
- output reg [4:0] occupied);
-
- reg full, empty;
- wire write = src_rdy_i & dst_rdy_o;
- wire read = dst_rdy_i & src_rdy_o;
-
- assign dst_rdy_o = ~full;
- assign src_rdy_o = ~empty;
-
- reg [3:0] a;
- genvar i;
-
- generate
- for (i=0;i<WIDTH;i=i+1)
- begin : gen_srl16
- SRL16E
- srl16e(.Q(dataout[i]),
- .A0(a[0]),.A1(a[1]),.A2(a[2]),.A3(a[3]),
- .CE(write),.CLK(clk),.D(datain[i]));
- end
- endgenerate
-
- always @(posedge clk)
- if(reset)
- begin
- a <= 0;
- empty <= 1;
- full <= 0;
- end
- else if(clear)
- begin
- a <= 0;
- empty <= 1;
- full<= 0;
- end
- else if(read & ~write)
- begin
- full <= 0;
- if(a==0)
- empty <= 1;
- else
- a <= a - 1;
- end
- else if(write & ~read)
- begin
- empty <= 0;
- if(~empty)
- a <= a + 1;
- if(a == 14)
- full <= 1;
- end
-
- // NOTE will fail if you write into a full fifo or read from an empty one
-
- //////////////////////////////////////////////////////////////
- // space and occupied are used for diagnostics, not
- // guaranteed correct
-
- //assign space = full ? 0 : empty ? 16 : 15-a;
- //assign occupied = empty ? 0 : full ? 16 : a+1;
-
- always @(posedge clk)
- if(reset)
- space <= 16;
- else if(clear)
- space <= 16;
- else if(read & ~write)
- space <= space + 1;
- else if(write & ~read)
- space <= space - 1;
-
- always @(posedge clk)
- if(reset)
- occupied <= 0;
- else if(clear)
- occupied <= 0;
- else if(read & ~write)
- occupied <= occupied - 1;
- else if(write & ~read)
- occupied <= occupied + 1;
-
-endmodule // fifo_short
-
diff --git a/usrp2/control_lib/newfifo/fifo_spec.txt b/usrp2/control_lib/newfifo/fifo_spec.txt
deleted file mode 100644
index 133b9fa8e..000000000
--- a/usrp2/control_lib/newfifo/fifo_spec.txt
+++ /dev/null
@@ -1,36 +0,0 @@
-
-
-FIFO and Buffer Interface Spec
-
-Buffer Interface Data Wires -- matches fifo36
- DATA[31:0]
- FLAGS[3:0]
- Bit 0 SOP
- Bit 1 EOP
- If SOP=1 && EOP=1, OCC contains error flags
- Bits 3:2 OCC[1:0] --> 00 = all 4 bytes
- 01 = 1 byte
- 10 = 2 bytes
- 11 = 3 bytes
-
-fifo36 --> {OCC[1:0],EOP,SOP,DATA[31:0]}
- OCC same as buffer interface
-
-fifo19 --> {OCC,EOP,SOP,DATA[15:0]}
- Doesn't fit well into BRAM, dist RAM ok
- OCC = 1 means last word is half full
- = 0 means last word is full
-
-fifo18 --> {EOP,SOP,DATA[15:0]}
- No half-word capability? Should we drop sop instead?
-
-Control Wires - Data into FIFO
- SRC_RDY_i Upstream has data for me
- DST_RDY_o I have space
- Transfer occurs if SRC_RDI_i && DST_RDY_o
-
-Control Wires - Data out of FIFO
- SRC_RDY_o I have data for downstream
- DST_RDY_i Downstream has space
- Transfer occurs if SRC_RDI_o && DST_RDY_i
-
diff --git a/usrp2/control_lib/newfifo/fifo_tb.v b/usrp2/control_lib/newfifo/fifo_tb.v
deleted file mode 100644
index f561df7fa..000000000
--- a/usrp2/control_lib/newfifo/fifo_tb.v
+++ /dev/null
@@ -1,158 +0,0 @@
-module fifo_new_tb();
-
- reg clk = 0;
- reg rst = 1;
- reg clear = 0;
- initial #1000 rst = 0;
- always #50 clk = ~clk;
-
- reg [31:0] f36_data = 0;
- reg [1:0] f36_occ = 0;
- reg f36_sof = 0, f36_eof = 0;
-
- wire [35:0] f36_in = {f36_occ,f36_eof,f36_sof,f36_data};
- reg src_rdy_f36i = 0;
- wire dst_rdy_f36i;
-
- wire [35:0] f36_out, f36_out2;
- wire src_rdy_f36o;
- reg dst_rdy_f36o = 0;
-
- //fifo_cascade #(.WIDTH(36), .SIZE(4)) fifo_cascade36
- //fifo_long #(.WIDTH(36), .SIZE(4)) fifo_cascade36
-
- wire i1_sr, i1_dr;
- wire i2_sr, i2_dr;
- wire i3_sr, i3_dr;
- reg i4_dr = 0;
- wire i4_sr;
-
- wire [35:0] i1, i4;
- wire [18:0] i2, i3;
-
- wire [7:0] ll_data;
- wire ll_src_rdy_n, ll_dst_rdy_n, ll_sof_n, ll_eof_n;
-
- fifo_short #(.WIDTH(36)) fifo_short1
- (.clk(clk),.reset(rst),.clear(clear),
- .datain(f36_in),.src_rdy_i(src_rdy_f36i),.dst_rdy_o(dst_rdy_f36i),
- .dataout(i1),.src_rdy_o(i1_sr),.dst_rdy_i(i1_dr) );
-
- fifo36_to_fifo19 fifo36_to_fifo19
- (.clk(clk),.reset(rst),.clear(clear),
- .f36_datain(i1),.f36_src_rdy_i(i1_sr),.f36_dst_rdy_o(i1_dr),
- .f19_dataout(i2),.f19_src_rdy_o(i2_sr),.f19_dst_rdy_i(i2_dr) );
-
- fifo19_to_ll8 fifo19_to_ll8
- (.clk(clk),.reset(rst),.clear(clear),
- .f19_data(i2),.f19_src_rdy_i(i2_sr),.f19_dst_rdy_o(i2_dr),
- .ll_data(ll_data),.ll_sof_n(ll_sof_n),.ll_eof_n(ll_eof_n),
- .ll_src_rdy_n(ll_src_rdy_n),.ll_dst_rdy_n(ll_dst_rdy_n));
-
- ll8_to_fifo19 ll8_to_fifo19
- (.clk(clk),.reset(rst),.clear(clear),
- .ll_data(ll_data),.ll_sof_n(ll_sof_n),.ll_eof_n(ll_eof_n),
- .ll_src_rdy_n(ll_src_rdy_n),.ll_dst_rdy_n(ll_dst_rdy_n),
- .f19_data(i3),.f19_src_rdy_o(i3_sr),.f19_dst_rdy_i(i3_dr) );
-
- fifo19_to_fifo36 fifo19_to_fifo36
- (.clk(clk),.reset(rst),.clear(clear),
- .f19_datain(i3),.f19_src_rdy_i(i3_sr),.f19_dst_rdy_o(i3_dr),
- .f36_dataout(i4),.f36_src_rdy_o(i4_sr),.f36_dst_rdy_i(i4_dr) );
-
- task ReadFromFIFO36;
- begin
- $display("Read from FIFO36");
- #1 i4_dr <= 1;
- while(1)
- begin
- while(~i4_sr)
- @(posedge clk);
- $display("Read: %h",i4);
- @(posedge clk);
- end
- end
- endtask // ReadFromFIFO36
-
- reg [15:0] count;
- task PutPacketInFIFO36;
- input [31:0] data_start;
- input [31:0] data_len;
- begin
- count <= 4;
- src_rdy_f36i <= 1;
- f36_data <= data_start;
- f36_sof <= 1;
- f36_eof <= 0;
- f36_occ <= 0;
-
- $display("Put Packet in FIFO36");
- while(~dst_rdy_f36i)
- @(posedge clk);
- @(posedge clk);
- $display("PPI_FIFO36: Entered First Line");
- f36_sof <= 0;
- while(count+4 < data_len)
- begin
- f36_data <= f36_data + 32'h01010101;
- count <= count + 4;
- while(~dst_rdy_f36i)
- @(posedge clk);
- @(posedge clk);
- $display("PPI_FIFO36: Entered New Line");
- end
- f36_data <= f36_data + 32'h01010101;
- f36_eof <= 1;
- if(count + 4 == data_len)
- f36_occ <= 0;
- else if(count + 3 == data_len)
- f36_occ <= 3;
- else if(count + 2 == data_len)
- f36_occ <= 2;
- else
- f36_occ <= 1;
- while(~dst_rdy_f36i)
- @(posedge clk);
- @(posedge clk);
- f36_occ <= 0;
- f36_eof <= 0;
- f36_data <= 0;
- src_rdy_f36i <= 0;
- $display("PPI_FIFO36: Entered Last Line");
- end
- endtask // PutPacketInFIFO36
-
- initial $dumpfile("fifo_new_tb.vcd");
- initial $dumpvars(0,fifo_new_tb);
-
- initial
- begin
- @(negedge rst);
- //#10000;
- @(posedge clk);
- @(posedge clk);
- @(posedge clk);
- @(posedge clk);
- ReadFromFIFO36;
- end
-
- initial
- begin
- @(negedge rst);
- @(posedge clk);
- @(posedge clk);
- PutPacketInFIFO36(32'hA0B0C0D0,12);
- @(posedge clk);
- @(posedge clk);
- #10000;
- @(posedge clk);
- PutPacketInFIFO36(32'hE0F0A0B0,36);
- @(posedge clk);
- @(posedge clk);
- @(posedge clk);
- @(posedge clk);
- @(posedge clk);
- end
-
- initial #20000 $finish;
-endmodule // longfifo_tb
diff --git a/usrp2/control_lib/newfifo/ll8_shortfifo.v b/usrp2/control_lib/newfifo/ll8_shortfifo.v
deleted file mode 100644
index 39ada9a4f..000000000
--- a/usrp2/control_lib/newfifo/ll8_shortfifo.v
+++ /dev/null
@@ -1,13 +0,0 @@
-
-
-module ll8_shortfifo
- (input clk, input reset, input clear,
- input [7:0] datain, input sof_i, input eof_i, input error_i, input src_rdy_i, output dst_rdy_o,
- output [7:0] dataout, output sof_o, output eof_o, output error_o, output src_rdy_o, input dst_rdy_i);
-
- fifo_short #(.WIDTH(11)) fifo_short
- (.clk(clk), .reset(reset), .clear(clear),
- .datain({error_i,eof_i,sof_i,datain}), .src_rdy_i(src_rdy_i), .dst_rdy_o(dst_rdy_o),
- .dataout({error_o,eof_o,sof_o,dataout}), .src_rdy_o(src_rdy_o), .dst_rdy_i(dst_rdy_i));
-
-endmodule // ll8_shortfifo
diff --git a/usrp2/control_lib/newfifo/ll8_to_fifo19.v b/usrp2/control_lib/newfifo/ll8_to_fifo19.v
deleted file mode 100644
index af3b91afb..000000000
--- a/usrp2/control_lib/newfifo/ll8_to_fifo19.v
+++ /dev/null
@@ -1,73 +0,0 @@
-
-module ll8_to_fifo19
- (input clk, input reset, input clear,
- input [7:0] ll_data,
- input ll_sof_n,
- input ll_eof_n,
- input ll_src_rdy_n,
- output ll_dst_rdy_n,
-
- output [18:0] f19_data,
- output f19_src_rdy_o,
- input f19_dst_rdy_i );
-
- localparam XFER_EMPTY = 0;
- localparam XFER_HALF = 1;
- localparam XFER_HALF_WRITE = 3;
-
- // Why anybody would use active low in an FPGA is beyond me...
- wire ll_sof = ~ll_sof_n;
- wire ll_eof = ~ll_eof_n;
- wire ll_src_rdy = ~ll_src_rdy_n;
- wire ll_dst_rdy;
- assign ll_dst_rdy_n = ~ll_dst_rdy;
-
- wire xfer_out = f19_src_rdy_o & f19_dst_rdy_i;
- wire xfer_in = ll_src_rdy & ll_dst_rdy;
-
- reg hold_sof;
- wire f19_sof, f19_eof, f19_occ;
-
- reg [1:0] state;
- reg [7:0] hold_reg;
-
- always @(posedge clk)
- if(ll_src_rdy & (state==XFER_EMPTY))
- hold_reg <= ll_data;
-
- always @(posedge clk)
- if(ll_sof & (state==XFER_EMPTY))
- hold_sof <= 1;
- else if(xfer_out)
- hold_sof <= 0;
-
- always @(posedge clk)
- if(reset | clear)
- state <= XFER_EMPTY;
- else
- case(state)
- XFER_EMPTY :
- if(ll_src_rdy)
- if(ll_eof)
- state <= XFER_HALF_WRITE;
- else
- state <= XFER_HALF;
- XFER_HALF :
- if(ll_src_rdy & f19_dst_rdy_i)
- state <= XFER_EMPTY;
- XFER_HALF_WRITE :
- if(f19_dst_rdy_i)
- state <= XFER_EMPTY;
- endcase // case (state)
-
- assign ll_dst_rdy = (state==XFER_EMPTY) | ((state==XFER_HALF)&f19_dst_rdy_i);
- assign f19_src_rdy_o = (state==XFER_HALF_WRITE) | ((state==XFER_HALF)&ll_src_rdy);
-
- assign f19_sof = hold_sof | (ll_sof & (state==XFER_HALF));
- assign f19_eof = (state == XFER_HALF_WRITE) | ll_eof;
- assign f19_occ = (state == XFER_HALF_WRITE);
-
- assign f19_data = {f19_occ,f19_eof,f19_sof,hold_reg,ll_data};
-
-endmodule // ll8_to_fifo19
-
diff --git a/usrp2/control_lib/newfifo/ll8_to_fifo36.v b/usrp2/control_lib/newfifo/ll8_to_fifo36.v
deleted file mode 100644
index 108daa903..000000000
--- a/usrp2/control_lib/newfifo/ll8_to_fifo36.v
+++ /dev/null
@@ -1,97 +0,0 @@
-
-module ll8_to_fifo36
- (input clk, input reset, input clear,
- input [7:0] ll_data,
- input ll_sof_n,
- input ll_eof_n,
- input ll_src_rdy_n,
- output ll_dst_rdy_n,
-
- output [35:0] f36_data,
- output f36_src_rdy_o,
- input f36_dst_rdy_i );
-
- wire f36_write = f36_src_rdy_o & f36_dst_rdy_i;
-
- // Why anybody would use active low in an FPGA is beyond me...
- wire ll_sof = ~ll_sof_n;
- wire ll_eof = ~ll_eof_n;
- wire ll_src_rdy = ~ll_src_rdy_n;
- wire ll_dst_rdy;
- assign ll_dst_rdy_n = ~ll_dst_rdy;
-
- reg f36_sof, f36_eof;
- reg [1:0] f36_occ;
-
-
- reg [2:0] state;
- reg [7:0] dat0, dat1, dat2, dat3;
-
- always @(posedge clk)
- if(ll_src_rdy & ((state==0)|f36_write))
- f36_sof <= ll_sof;
-
- always @(posedge clk)
- if(ll_src_rdy & ((state !=4)|f36_write))
- f36_eof <= ll_eof;
-
- always @(posedge clk)
- if(ll_eof)
- f36_occ <= state[1:0] + 1;
- else
- f36_occ <= 0;
-
- always @(posedge clk)
- if(reset)
- state <= 0;
- else
- if(ll_src_rdy)
- case(state)
- 0 :
- if(ll_eof)
- state <= 4;
- else
- state <= 1;
- 1 :
- if(ll_eof)
- state <= 4;
- else
- state <= 2;
- 2 :
- if(ll_eof)
- state <= 4;
- else
- state <= 3;
- 3 : state <= 4;
- 4 :
- if(f36_dst_rdy_i)
- if(ll_eof)
- state <= 4;
- else
- state <= 1;
- endcase // case(state)
- else
- if(f36_write)
- state <= 0;
-
- always @(posedge clk)
- if(ll_src_rdy & (state==3))
- dat3 <= ll_data;
-
- always @(posedge clk)
- if(ll_src_rdy & (state==2))
- dat2 <= ll_data;
-
- always @(posedge clk)
- if(ll_src_rdy & (state==1))
- dat1 <= ll_data;
-
- always @(posedge clk)
- if(ll_src_rdy & ((state==0) | f36_write))
- dat0 <= ll_data;
-
- assign ll_dst_rdy = f36_dst_rdy_i | (state != 4);
- assign f36_data = {f36_occ,f36_eof,f36_sof,dat0,dat1,dat2,dat3}; // FIXME endianess
- assign f36_src_rdy_o = (state == 4);
-
-endmodule // ll8_to_fifo36
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