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//
// Copyright 2014 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
module split_stream_fifo
#(parameter WIDTH=16,
parameter FIFO_SIZE=5,
parameter ACTIVE_MASK=4'b1111)
(input clk, input reset, input clear,
input [WIDTH-1:0] i_tdata, input i_tlast, input i_tvalid, output i_tready,
output [WIDTH-1:0] o0_tdata, output o0_tlast, output o0_tvalid, input o0_tready,
output [WIDTH-1:0] o1_tdata, output o1_tlast, output o1_tvalid, input o1_tready,
output [WIDTH-1:0] o2_tdata, output o2_tlast, output o2_tvalid, input o2_tready,
output [WIDTH-1:0] o3_tdata, output o3_tlast, output o3_tvalid, input o3_tready);
wire [WIDTH-1:0] o0_tdata_int, o1_tdata_int, o2_tdata_int, o3_tdata_int;
wire o0_tlast_int, o1_tlast_int, o2_tlast_int, o3_tlast_int;
wire o0_tvalid_int, o1_tvalid_int, o2_tvalid_int, o3_tvalid_int;
wire o0_tready_int, o1_tready_int, o2_tready_int, o3_tready_int;
split_stream #(.WIDTH(WIDTH), .ACTIVE_MASK(ACTIVE_MASK)) split_stream
(.clk(clk), .reset(reset), .clear(clear),
.i_tdata(i_tdata), .i_tlast(i_tlast), .i_tvalid(i_tvalid), .i_tready(i_tready),
.o0_tdata(o0_tdata_int), .o0_tlast(o0_tlast_int), .o0_tvalid(o0_tvalid_int), .o0_tready(o0_tready_int),
.o1_tdata(o1_tdata_int), .o1_tlast(o1_tlast_int), .o1_tvalid(o1_tvalid_int), .o1_tready(o1_tready_int),
.o2_tdata(o2_tdata_int), .o2_tlast(o2_tlast_int), .o2_tvalid(o2_tvalid_int), .o2_tready(o2_tready_int),
.o3_tdata(o3_tdata_int), .o3_tlast(o3_tlast_int), .o3_tvalid(o3_tvalid_int), .o3_tready(o3_tready_int));
generate
if(ACTIVE_MASK[0])
axi_fifo #(.WIDTH(WIDTH+1), .SIZE(FIFO_SIZE)) axi_fifo0
(.clk(clk), .reset(reset), .clear(clear),
.i_tdata({o0_tlast_int, o0_tdata_int}), .i_tvalid(o0_tvalid_int), .i_tready(o0_tready_int),
.o_tdata({o0_tlast, o0_tdata}), .o_tvalid(o0_tvalid), .o_tready(o0_tready),
.occupied(), .space());
if(ACTIVE_MASK[1])
axi_fifo #(.WIDTH(WIDTH+1), .SIZE(FIFO_SIZE)) axi_fifo1
(.clk(clk), .reset(reset), .clear(clear),
.i_tdata({o1_tlast_int, o1_tdata_int}), .i_tvalid(o1_tvalid_int), .i_tready(o1_tready_int),
.o_tdata({o1_tlast, o1_tdata}), .o_tvalid(o1_tvalid), .o_tready(o1_tready),
.occupied(), .space());
if(ACTIVE_MASK[2])
axi_fifo #(.WIDTH(WIDTH+1), .SIZE(FIFO_SIZE)) axi_fifo2
(.clk(clk), .reset(reset), .clear(clear),
.i_tdata({o2_tlast_int, o2_tdata_int}), .i_tvalid(o2_tvalid_int), .i_tready(o2_tready_int),
.o_tdata({o2_tlast, o2_tdata}), .o_tvalid(o2_tvalid), .o_tready(o2_tready),
.occupied(), .space());
if(ACTIVE_MASK[3])
axi_fifo #(.WIDTH(WIDTH+1), .SIZE(FIFO_SIZE)) axi_fifo3
(.clk(clk), .reset(reset), .clear(clear),
.i_tdata({o3_tlast_int, o3_tdata_int}), .i_tvalid(o3_tvalid_int), .i_tready(o3_tready_int),
.o_tdata({o3_tlast, o3_tdata}), .o_tvalid(o3_tvalid), .o_tready(o3_tready),
.occupied(), .space());
endgenerate
endmodule // split_stream_fifo
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