Subversion Repositories the_wizardry_project

--      Package Filea Template

--

--      Purpose: This package defines supplemental types, subtypes, 

--               constants, and functions 

library IEEE;

use IEEE.STD_LOGIC_1164.all;

--use work.mem_interface_top_parameters_0.all;

package port_block_Constants is

constant MAX_NUM_PORTS_2_FIND : integer := 64;

constant MAX_NUM_FRAME_COUNTERS : integer := 8;

constant        TCP_SOURCE : std_logic_vector(7 downto 0) := X"24";

constant        TCP_DESTINATION : std_logic_vector(7 downto 0) := X"25";

constant UDP_SOURCE : std_logic_vector(7 downto 0) := X"2E";

constant UDP_DESTINATION : std_logic_vector(7 downto 0) := X"2F";

constant SHARED_MEM_PREFIX_SOURCE : std_logic_vector(8 downto 0) := "011011000";

constant SHARED_MEM_PREFIX_DEST   : std_logic_vector(8 downto 0) := "011011001";

constant SHARED_MEM_LUT_SRC_START : std_logic_Vector(8 downto 0) := "011011010";

constant SHARED_MEM_LUT_DST_START : std_logic_Vector(8 downto 0) := "011011011";

constant        SHARED_MEM_COUNTER_START : STD_logic_vector(8 downto 0) := "011011100";

constant baud : std_logic_vector := "110";--"000";

--sharable memory id map----

constant ID_0_SHARED : std_logic_vector(5 downto 0) := "100000";

constant ID_EmPAC_SHARED : std_logic_vector(5 downto 0) := "100001";

constant ID_wc_uart_SHARED : std_logic_vector(5 downto 0) := "100010";

constant ID_eRCP_SHARED : std_logic_vector(5 downto 0) := "100011";

constant ID_eRCP0_SHARED : std_logic_vector(5 downto 0) := "100100";

constant ID_5_SHARED : std_logic_vector(5 downto 0) := "100101";

constant ID_6_SHARED : std_logic_vector(5 downto 0) := "100110";

constant ID_7_SHARED : std_logic_vector(5 downto 0) := "100111";

constant ID_8_SHARED : std_logic_vector(5 downto 0) := "101000";

constant ID_9_SHARED : std_logic_vector(5 downto 0) := "101001";

constant ID_10_SHARED : std_logic_vector(5 downto 0) := "101010";

constant ID_11_SHARED : std_logic_vector(5 downto 0) := "101011";

constant ID_12_SHARED : std_logic_vector(5 downto 0) := "101100";

constant ID_13_SHARED : std_logic_vector(5 downto 0) := "101101";

constant ID_14_SHARED : std_logic_vector(5 downto 0) := "101110";

constant ID_15_SHARED : std_logic_vector(5 downto 0) := "101111";

constant ID_16_SHARED : std_logic_vector(5 downto 0) := "110000";

constant ID_17_SHARED : std_logic_vector(5 downto 0) := "110001";

constant ID_18_SHARED : std_logic_vector(5 downto 0) := "110010";

constant ID_19_SHARED : std_logic_vector(5 downto 0) := "110011";

constant ID_20_SHARED : std_logic_vector(5 downto 0) := "110100";

constant ID_21_SHARED : std_logic_vector(5 downto 0) := "110101";

constant ID_22_SHARED : std_logic_vector(5 downto 0) := "110110";

constant ID_23_SHARED : std_logic_vector(5 downto 0) := "110111";

constant ID_24_SHARED : std_logic_vector(5 downto 0) := "111000";

constant ID_25_SHARED : std_logic_vector(5 downto 0) := "111001";

constant ID_26_SHARED : std_logic_vector(5 downto 0) := "111010";

constant ID_27_SHARED : std_logic_vector(5 downto 0) := "111011";

constant ID_28_SHARED : std_logic_vector(5 downto 0) := "111100";

constant ID_29_SHARED : std_logic_vector(5 downto 0) := "111101";

constant ID_30_SHARED : std_logic_vector(5 downto 0) := "111110";

constant ID_31_SHARED : std_logic_vector(5 downto 0) := "111111";

constant SRC_MINI_PREFIX : std_logic_vector(2 downto 0) := "000";

constant DST_MINI_PREFIX : std_logic_vector(2 downto 0) := "001";

constant LUT_SRC_MINI_PREFIX : std_logic_vector(2 downto 0) := "010";

constant LUT_DST_MINI_PREFIX : std_logic_vector(2 downto 0) := "011";

constant COUNTER_MINI_PREFIX : std_logic_vector(2 downto 0) := "100";

--constant MAX_NUM_PORTS_2_FIND : integer := 64;

type array_table is array (0 to 63) of std_logic_vector(16 downto 0);

type frame_counters_type is

        record

                count0 : std_logic_vector(31 downto 0);

                count1 : std_logic_vector(31 downto 0);

                count2 : std_logic_vector(31 downto 0);

                count3 : std_logic_vector(31 downto 0);

                count4 : std_logic_vector(31 downto 0);

                count5 : std_logic_vector(31 downto 0);

                count6 : std_logic_vector(31 downto 0);

                count7 : std_logic_vector(31 downto 0);

        end record;

type frame_counters_array_type is array (0 to 7) of std_logic_vector(31 downto 0);

type lut_check is

        record

                in_lut : boolean;

                lut_pointer : integer range 0 to MAX_NUM_PORTS_2_FIND -1;

        end record;

function check_lut (signal l : in array_table; signal m : in std_logic_vector(16 downto 0)) return lut_check;

end port_block_Constants;

package body port_block_Constants is

function check_lut (signal l : in array_table; signal m : in std_logic_Vector(16 downto 0)) return lut_check is

                variable return_v : lut_check;

--        variable return_v : boolean;

--        variable return_port : integer range 0 to num_of_ports -1;

                begin

                for i in 0 to MAX_NUM_PORTS_2_FIND -1 loop

                        if(l(i) = m) then

                                return_v.in_lut := true;

                                return_v.lut_pointer := i;

                                exit;

                        else

                                return_v.in_lut := false;

                                return_v.lut_pointer := 0;

                        end if;

                end loop;

                return return_v;

        end check_lut;

end port_block_Constants;