module test_ip_demux_4;

// Parameters
parameter M_COUNT = 4;
parameter DATA_WIDTH = 8;
parameter KEEP_ENABLE = (DATA_WIDTH>8);
parameter KEEP_WIDTH = (DATA_WIDTH/8);
parameter ID_ENABLE = 1;
parameter ID_WIDTH = 8;
parameter DEST_ENABLE = 1;
parameter DEST_WIDTH = 8;
parameter USER_ENABLE = 1;
parameter USER_WIDTH = 1;

// Inputs
reg clk = 0;
reg rst = 0;
reg [7:0] current_test = 0;

reg s_ip_hdr_valid = 0;
reg [47:0] s_eth_dest_mac = 0;
reg [47:0] s_eth_src_mac = 0;
reg [15:0] s_eth_type = 0;
reg [3:0] s_ip_version = 0;
reg [3:0] s_ip_ihl = 0;
reg [5:0] s_ip_dscp = 0;
reg [1:0] s_ip_ecn = 0;
reg [15:0] s_ip_length = 0;
reg [15:0] s_ip_identification = 0;
reg [2:0] s_ip_flags = 0;
reg [12:0] s_ip_fragment_offset = 0;
reg [7:0] s_ip_ttl = 0;
reg [7:0] s_ip_protocol = 0;
reg [15:0] s_ip_header_checksum = 0;
reg [31:0] s_ip_source_ip = 0;
reg [31:0] s_ip_dest_ip = 0;
reg [DATA_WIDTH-1:0] s_ip_payload_axis_tdata = 0;
reg [KEEP_WIDTH-1:0] s_ip_payload_axis_tkeep = 0;
reg s_ip_payload_axis_tvalid = 0;
reg s_ip_payload_axis_tlast = 0;
reg [ID_WIDTH-1:0] s_ip_payload_axis_tid = 0;
reg [DEST_WIDTH-1:0] s_ip_payload_axis_tdest = 0;
reg [USER_WIDTH-1:0] s_ip_payload_axis_tuser = 0;

reg [M_COUNT-1:0] m_ip_hdr_ready = 0;
reg [M_COUNT-1:0] m_ip_payload_axis_tready = 0;

reg enable = 0;
reg drop = 0;
reg [1:0] select = 0;

// Outputs
wire s_ip_hdr_ready;
wire s_ip_payload_axis_tready;

wire [M_COUNT-1:0] m_ip_hdr_valid;
wire [M_COUNT*48-1:0] m_eth_dest_mac;
wire [M_COUNT*48-1:0] m_eth_src_mac;
wire [M_COUNT*16-1:0] m_eth_type;
wire [M_COUNT*4-1:0] m_ip_version;
wire [M_COUNT*4-1:0] m_ip_ihl;
wire [M_COUNT*6-1:0] m_ip_dscp;
wire [M_COUNT*2-1:0] m_ip_ecn;
wire [M_COUNT*16-1:0] m_ip_length;
wire [M_COUNT*16-1:0] m_ip_identification;
wire [M_COUNT*3-1:0] m_ip_flags;
wire [M_COUNT*13-1:0] m_ip_fragment_offset;
wire [M_COUNT*8-1:0] m_ip_ttl;
wire [M_COUNT*8-1:0] m_ip_protocol;
wire [M_COUNT*16-1:0] m_ip_header_checksum;
wire [M_COUNT*32-1:0] m_ip_source_ip;
wire [M_COUNT*32-1:0] m_ip_dest_ip;
wire [M_COUNT*DATA_WIDTH-1:0] m_ip_payload_axis_tdata;
wire [M_COUNT*KEEP_WIDTH-1:0] m_ip_payload_axis_tkeep;
wire [M_COUNT-1:0] m_ip_payload_axis_tvalid;
wire [M_COUNT-1:0] m_ip_payload_axis_tlast;
wire [M_COUNT*ID_WIDTH-1:0] m_ip_payload_axis_tid;
wire [M_COUNT*DEST_WIDTH-1:0] m_ip_payload_axis_tdest;
wire [M_COUNT*USER_WIDTH-1:0] m_ip_payload_axis_tuser;

initial begin
    // myhdl integration
    $from_myhdl(
        clk,
        rst,
        current_test,
        s_ip_hdr_valid,
        s_eth_dest_mac,
        s_eth_src_mac,
        s_eth_type,
        s_ip_version,
        s_ip_ihl,
        s_ip_dscp,
        s_ip_ecn,
        s_ip_length,
        s_ip_identification,
        s_ip_flags,
        s_ip_fragment_offset,
        s_ip_ttl,
        s_ip_protocol,
        s_ip_header_checksum,
        s_ip_source_ip,
        s_ip_dest_ip,
        s_ip_payload_axis_tdata,
        s_ip_payload_axis_tkeep,
        s_ip_payload_axis_tvalid,
        s_ip_payload_axis_tlast,
        s_ip_payload_axis_tid,
        s_ip_payload_axis_tdest,
        s_ip_payload_axis_tuser,
        m_ip_hdr_ready,
        m_ip_payload_axis_tready,
        enable,
        drop,
        select
    );
    $to_myhdl(
        s_ip_hdr_ready,
        s_ip_payload_axis_tready,
        m_ip_hdr_valid,
        m_eth_dest_mac,
        m_eth_src_mac,
        m_eth_type,
        m_ip_version,
        m_ip_ihl,
        m_ip_dscp,
        m_ip_ecn,
        m_ip_length,
        m_ip_identification,
        m_ip_flags,
        m_ip_fragment_offset,
        m_ip_ttl,
        m_ip_protocol,
        m_ip_header_checksum,
        m_ip_source_ip,
        m_ip_dest_ip,
        m_ip_payload_axis_tdata,
        m_ip_payload_axis_tkeep,
        m_ip_payload_axis_tvalid,
        m_ip_payload_axis_tlast,
        m_ip_payload_axis_tid,
        m_ip_payload_axis_tdest,
        m_ip_payload_axis_tuser
    );

    // dump file
    $dumpfile("test_ip_demux_4.lxt");
    $dumpvars(0, test_ip_demux_4);
end

ip_demux #(
    .M_COUNT(M_COUNT),
    .DATA_WIDTH(DATA_WIDTH),
    .KEEP_ENABLE(KEEP_ENABLE),
    .KEEP_WIDTH(KEEP_WIDTH),
    .ID_ENABLE(ID_ENABLE),
    .ID_WIDTH(ID_WIDTH),
    .DEST_ENABLE(DEST_ENABLE),
    .DEST_WIDTH(DEST_WIDTH),
    .USER_ENABLE(USER_ENABLE),
    .USER_WIDTH(USER_WIDTH)
)
UUT (
    .clk(clk),
    .rst(rst),
    // IP frame input
    .s_ip_hdr_valid(s_ip_hdr_valid),
    .s_ip_hdr_ready(s_ip_hdr_ready),
    .s_eth_dest_mac(s_eth_dest_mac),
    .s_eth_src_mac(s_eth_src_mac),
    .s_eth_type(s_eth_type),
    .s_ip_version(s_ip_version),
    .s_ip_ihl(s_ip_ihl),
    .s_ip_dscp(s_ip_dscp),
    .s_ip_ecn(s_ip_ecn),
    .s_ip_length(s_ip_length),
    .s_ip_identification(s_ip_identification),
    .s_ip_flags(s_ip_flags),
    .s_ip_fragment_offset(s_ip_fragment_offset),
    .s_ip_ttl(s_ip_ttl),
    .s_ip_protocol(s_ip_protocol),
    .s_ip_header_checksum(s_ip_header_checksum),
    .s_ip_source_ip(s_ip_source_ip),
    .s_ip_dest_ip(s_ip_dest_ip),
    .s_ip_payload_axis_tdata(s_ip_payload_axis_tdata),
    .s_ip_payload_axis_tkeep(s_ip_payload_axis_tkeep),
    .s_ip_payload_axis_tvalid(s_ip_payload_axis_tvalid),
    .s_ip_payload_axis_tready(s_ip_payload_axis_tready),
    .s_ip_payload_axis_tlast(s_ip_payload_axis_tlast),
    .s_ip_payload_axis_tid(s_ip_payload_axis_tid),
    .s_ip_payload_axis_tdest(s_ip_payload_axis_tdest),
    .s_ip_payload_axis_tuser(s_ip_payload_axis_tuser),
    // IP frame outputs
    .m_ip_hdr_valid(m_ip_hdr_valid),
    .m_ip_hdr_ready(m_ip_hdr_ready),
    .m_eth_dest_mac(m_eth_dest_mac),
    .m_eth_src_mac(m_eth_src_mac),
    .m_eth_type(m_eth_type),
    .m_ip_version(m_ip_version),
    .m_ip_ihl(m_ip_ihl),
    .m_ip_dscp(m_ip_dscp),
    .m_ip_ecn(m_ip_ecn),
    .m_ip_length(m_ip_length),
    .m_ip_identification(m_ip_identification),
    .m_ip_flags(m_ip_flags),
    .m_ip_fragment_offset(m_ip_fragment_offset),
    .m_ip_ttl(m_ip_ttl),
    .m_ip_protocol(m_ip_protocol),
    .m_ip_header_checksum(m_ip_header_checksum),
    .m_ip_source_ip(m_ip_source_ip),
    .m_ip_dest_ip(m_ip_dest_ip),
    .m_ip_payload_axis_tdata(m_ip_payload_axis_tdata),
    .m_ip_payload_axis_tkeep(m_ip_payload_axis_tkeep),
    .m_ip_payload_axis_tvalid(m_ip_payload_axis_tvalid),
    .m_ip_payload_axis_tready(m_ip_payload_axis_tready),
    .m_ip_payload_axis_tlast(m_ip_payload_axis_tlast),
    .m_ip_payload_axis_tid(m_ip_payload_axis_tid),
    .m_ip_payload_axis_tdest(m_ip_payload_axis_tdest),
    .m_ip_payload_axis_tuser(m_ip_payload_axis_tuser),
    // Control
    .enable(enable),
    .drop(drop),
    .select(select)
);

endmodule