module test_eth_arb_mux_4;

// Parameters
parameter S_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;
parameter ARB_TYPE_ROUND_ROBIN = 0;
parameter ARB_LSB_HIGH_PRIORITY = 1;

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

reg [S_COUNT-1:0] s_eth_hdr_valid = 0;
reg [S_COUNT*48-1:0] s_eth_dest_mac = 0;
reg [S_COUNT*48-1:0] s_eth_src_mac = 0;
reg [S_COUNT*16-1:0] s_eth_type = 0;
reg [S_COUNT*DATA_WIDTH-1:0] s_eth_payload_axis_tdata = 0;
reg [S_COUNT*KEEP_WIDTH-1:0] s_eth_payload_axis_tkeep = 0;
reg [S_COUNT-1:0] s_eth_payload_axis_tvalid = 0;
reg [S_COUNT-1:0] s_eth_payload_axis_tlast = 0;
reg [S_COUNT*ID_WIDTH-1:0] s_eth_payload_axis_tid = 0;
reg [S_COUNT*DEST_WIDTH-1:0] s_eth_payload_axis_tdest = 0;
reg [S_COUNT*USER_WIDTH-1:0] s_eth_payload_axis_tuser = 0;

reg m_eth_hdr_ready = 0;
reg m_eth_payload_axis_tready = 0;

// Outputs
wire [S_COUNT-1:0] s_eth_hdr_ready;
wire [S_COUNT-1:0] s_eth_payload_axis_tready;

wire m_eth_hdr_valid;
wire [47:0] m_eth_dest_mac;
wire [47:0] m_eth_src_mac;
wire [15:0] m_eth_type;
wire [DATA_WIDTH-1:0] m_eth_payload_axis_tdata;
wire [KEEP_WIDTH-1:0] m_eth_payload_axis_tkeep;
wire m_eth_payload_axis_tvalid;
wire m_eth_payload_axis_tlast;
wire [ID_WIDTH-1:0] m_eth_payload_axis_tid;
wire [DEST_WIDTH-1:0] m_eth_payload_axis_tdest;
wire [USER_WIDTH-1:0] m_eth_payload_axis_tuser;

initial begin
    // myhdl integration
    $from_myhdl(
        clk,
        rst,
        current_test,
        s_eth_hdr_valid,
        s_eth_dest_mac,
        s_eth_src_mac,
        s_eth_type,
        s_eth_payload_axis_tdata,
        s_eth_payload_axis_tkeep,
        s_eth_payload_axis_tvalid,
        s_eth_payload_axis_tlast,
        s_eth_payload_axis_tid,
        s_eth_payload_axis_tdest,
        s_eth_payload_axis_tuser,
        m_eth_hdr_ready,
        m_eth_payload_axis_tready
    );
    $to_myhdl(
        s_eth_hdr_ready,
        s_eth_payload_axis_tready,
        m_eth_hdr_valid,
        m_eth_dest_mac,
        m_eth_src_mac,
        m_eth_type,
        m_eth_payload_axis_tdata,
        m_eth_payload_axis_tkeep,
        m_eth_payload_axis_tvalid,
        m_eth_payload_axis_tlast,
        m_eth_payload_axis_tid,
        m_eth_payload_axis_tdest,
        m_eth_payload_axis_tuser
    );

    // dump file
    $dumpfile("test_eth_arb_mux_4.lxt");
    $dumpvars(0, test_eth_arb_mux_4);
end

eth_arb_mux #(
    .S_COUNT(S_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),
    .ARB_TYPE_ROUND_ROBIN(ARB_TYPE_ROUND_ROBIN),
    .ARB_LSB_HIGH_PRIORITY(ARB_LSB_HIGH_PRIORITY)
)
UUT (
    .clk(clk),
    .rst(rst),
    // Ethernet frame inputs
    .s_eth_hdr_valid(s_eth_hdr_valid),
    .s_eth_hdr_ready(s_eth_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_eth_payload_axis_tdata(s_eth_payload_axis_tdata),
    .s_eth_payload_axis_tkeep(s_eth_payload_axis_tkeep),
    .s_eth_payload_axis_tvalid(s_eth_payload_axis_tvalid),
    .s_eth_payload_axis_tready(s_eth_payload_axis_tready),
    .s_eth_payload_axis_tlast(s_eth_payload_axis_tlast),
    .s_eth_payload_axis_tid(s_eth_payload_axis_tid),
    .s_eth_payload_axis_tdest(s_eth_payload_axis_tdest),
    .s_eth_payload_axis_tuser(s_eth_payload_axis_tuser),
    // Ethernet frame output
    .m_eth_hdr_valid(m_eth_hdr_valid),
    .m_eth_hdr_ready(m_eth_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_eth_payload_axis_tdata(m_eth_payload_axis_tdata),
    .m_eth_payload_axis_tkeep(m_eth_payload_axis_tkeep),
    .m_eth_payload_axis_tvalid(m_eth_payload_axis_tvalid),
    .m_eth_payload_axis_tready(m_eth_payload_axis_tready),
    .m_eth_payload_axis_tlast(m_eth_payload_axis_tlast),
    .m_eth_payload_axis_tid(m_eth_payload_axis_tid),
    .m_eth_payload_axis_tdest(m_eth_payload_axis_tdest),
    .m_eth_payload_axis_tuser(m_eth_payload_axis_tuser)
);

endmodule