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//////////////////////////////////////////////////////////////////////

////                                                              ////

//// Copyright (C) 2015 Authors and OPENCORES.ORG                 ////

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//// This source file is free software; you can redistribute it   ////

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//////////////////////////////////////////////////////////////////////

// --------------------------------------------------------------------

//

package pcie_bfm_pkg;

  // --------------------------------------------------------------------

  //

  import pcie_common_pkg::*;

  // --------------------------------------------------------------------

  //

  class altera_pcie_transaction;

    tlp_header_class hd_h;

    byte packet[];

    //--------------------------------------------------------------------

    //

    function new(tlp_header_class hd_h, bit qword_aligned);

      this.hd_h = hd_h;

      if(qword_aligned & hd_h.fmt_type[5] == 0)

        if(hd_h.length == 0)

          this.packet = new[1024 + 1];

        else

          this.packet = new[hd_h.length + 1];

      else

        if(hd_h.length == 0)

          this.packet = new[1024];

        else

          this.packet = new[hd_h.length];

    endfunction: new

  // --------------------------------------------------------------------

  //

  endclass: altera_pcie_transaction

  // // --------------------------------------------------------------------

  // //

  // class base_tlp_packet_class;

    // tlp_type_t        header_type       = Reserved;

    // tlp_routing_t     routing_type      = ROUTING_UNKNOWN;

    // tlp_transaction_t transaction_type  = TRANSACTION_UNKNOWN;

    // logic [7:0] fmt_type;

    // logic [2:0] tc;

    // logic       th;

    // logic [2:0] attr;

    // logic       td;

    // logic       ep;

    // logic [9:0] length;

    // logic [7:0] header [16];

    // logic       header_is_4_dw;

    // // --------------------------------------------------------------------

    // //

    // function tlp_type_t get_tlp_type(logic [7:0] fmt_type);

      // casez(fmt_type)

        // 8'b000_00000: get_tlp_type = MRd;

        // 8'b001_00000: get_tlp_type = MRd;

        // 8'b000_00001: get_tlp_type = MRdLk;

        // 8'b001_00001: get_tlp_type = MRdLk;

        // 8'b010_00000: get_tlp_type = MWr;

        // 8'b011_00000: get_tlp_type = MWr;

        // 8'b000_00010: get_tlp_type = IORd;

        // 8'b010_00010: get_tlp_type = IOWr;

        // 8'b000_00100: get_tlp_type = CfgRd0;

        // 8'b010_00100: get_tlp_type = CfgWr0;

        // 8'b000_00101: get_tlp_type = CfgRd1;

        // 8'b010_00101: get_tlp_type = CfgWr1;

        // 8'b000_11011: get_tlp_type = TCfgRd;

        // 8'b010_11011: get_tlp_type = TCfgWr;

        // 8'b001_10???: get_tlp_type = Msg;

        // 8'b011_10???: get_tlp_type = MsgD;

        // 8'b000_01010: get_tlp_type = Cpl;

        // 8'b010_01010: get_tlp_type = CplD;

        // 8'b000_01011: get_tlp_type = CplLk;

        // 8'b010_01011: get_tlp_type = CplDLk;

        // 8'b010_01100: get_tlp_type = FetchAdd;

        // 8'b011_01100: get_tlp_type = FetchAdd;

        // 8'b010_01101: get_tlp_type = Swap;

        // 8'b011_01101: get_tlp_type = Swap;

        // 8'b010_01110: get_tlp_type = CAS;

        // 8'b011_01110: get_tlp_type = CAS;

        // 8'b100_0????: get_tlp_type = LPrfx;

        // 8'b100_1????: get_tlp_type = EPrfx;

        // default:      get_tlp_type = Reserved;

      // endcase

    // endfunction: get_tlp_type

    // // --------------------------------------------------------------------

    // //

    // function tlp_routing_t get_tlp_routing(tlp_type_t tlp_type);

      // case(tlp_type)

        // MRd:      get_tlp_routing = ADDRESS;

        // MRdLk:    get_tlp_routing = ADDRESS;

        // MWr:      get_tlp_routing = ADDRESS;

        // IORd:     get_tlp_routing = ADDRESS;

        // IOWr:     get_tlp_routing = ADDRESS;

        // CfgRd0:   get_tlp_routing = ID;

        // CfgWr0:   get_tlp_routing = ID;

        // CfgRd1:   get_tlp_routing = ID;

        // CfgWr1:   get_tlp_routing = ID;

        // TCfgRd:   get_tlp_routing = ID;

        // TCfgWr:   get_tlp_routing = ID;

        // Msg:      get_tlp_routing = ROUTING_UNKNOWN;

        // MsgD:     get_tlp_routing = ROUTING_UNKNOWN;

        // Cpl:      get_tlp_routing = ID;

        // CplD:     get_tlp_routing = ID;

        // CplLk:    get_tlp_routing = ID;

        // CplDLk:   get_tlp_routing = ID;

        // FetchAdd: get_tlp_routing = ROUTING_UNKNOWN;

        // Swap:     get_tlp_routing = ROUTING_UNKNOWN;

        // CAS:      get_tlp_routing = ROUTING_UNKNOWN;

        // LPrfx:    get_tlp_routing = ROUTING_UNKNOWN;

        // EPrfx:    get_tlp_routing = ROUTING_UNKNOWN;

        // default:  get_tlp_routing = ROUTING_UNKNOWN;

      // endcase

    // endfunction: get_tlp_routing

    // // --------------------------------------------------------------------

    // //

    // function tlp_transaction_t get_tlp_transaction(tlp_type_t tlp_type);

      // case(tlp_type)

        // MRd:      get_tlp_transaction = REQUESTER;

        // MRdLk:    get_tlp_transaction = REQUESTER;

        // MWr:      get_tlp_transaction = REQUESTER;

        // IORd:     get_tlp_transaction = REQUESTER;

        // IOWr:     get_tlp_transaction = REQUESTER;

        // CfgRd0:   get_tlp_transaction = REQUESTER;

        // CfgWr0:   get_tlp_transaction = REQUESTER;

        // CfgRd1:   get_tlp_transaction = REQUESTER;

        // CfgWr1:   get_tlp_transaction = REQUESTER;

        // TCfgRd:   get_tlp_transaction = REQUESTER;

        // TCfgWr:   get_tlp_transaction = REQUESTER;

        // Msg:      get_tlp_transaction = REQUESTER;

        // MsgD:     get_tlp_transaction = REQUESTER;

        // Cpl:      get_tlp_transaction = COMPLETER;

        // CplD:     get_tlp_transaction = COMPLETER;

        // CplLk:    get_tlp_transaction = COMPLETER;

        // CplDLk:   get_tlp_transaction = COMPLETER;

        // FetchAdd: get_tlp_transaction = TRANSACTION_UNKNOWN;

        // Swap:     get_tlp_transaction = TRANSACTION_UNKNOWN;

        // CAS:      get_tlp_transaction = TRANSACTION_UNKNOWN;

        // LPrfx:    get_tlp_transaction = TRANSACTION_UNKNOWN;

        // EPrfx:    get_tlp_transaction = TRANSACTION_UNKNOWN;

        // default:  get_tlp_transaction = TRANSACTION_UNKNOWN;

      // endcase

    // endfunction: get_tlp_transaction

    // // --------------------------------------------------------------------

    // //

    // function void display_tlp_cfg(tlp_type_t tlp_type);

      // logic [5:0] Register_Number = header[11][7:2];

      // logic [3:0] Extended_Register_Number = header[10][3:0];

      // // $display("??? %16.t | Register_Number           = %b", $time, Register_Number);

      // // $display("??? %16.t | Extended_Register_Number  = %b", $time, Extended_Register_Number);

      // $display("??? %16.t | config offset             = 0x%5.x",

                // $time, {Extended_Register_Number, Register_Number, 2'b00});

    // endfunction: display_tlp_cfg

    // // --------------------------------------------------------------------

    // //

    // function void display_tlp_type(tlp_type_t tlp_type);

      // case(tlp_type)

        // // MRd:      get_tlp_transaction = REQUESTER;

        // // MRdLk:    get_tlp_transaction = REQUESTER;

        // // MWr:      get_tlp_transaction = REQUESTER;

        // // IORd:     get_tlp_transaction = REQUESTER;

        // // IOWr:     get_tlp_transaction = REQUESTER;

        // CfgRd0:   display_tlp_cfg(tlp_type);

        // CfgWr0:   display_tlp_cfg(tlp_type);

        // CfgRd1:   display_tlp_cfg(tlp_type);

        // CfgWr1:   display_tlp_cfg(tlp_type);

        // TCfgRd:   display_tlp_cfg(tlp_type);

        // TCfgWr:   display_tlp_cfg(tlp_type);

        // // Msg:      get_tlp_transaction = REQUESTER;

        // // MsgD:     get_tlp_transaction = REQUESTER;

        // // Cpl:      get_tlp_transaction = COMPLETER;

        // // CplD:     get_tlp_transaction = COMPLETER;

        // // CplLk:    get_tlp_transaction = COMPLETER;

        // // CplDLk:   get_tlp_transaction = COMPLETER;

        // // FetchAdd: get_tlp_transaction = TRANSACTION_UNKNOWN;

        // // Swap:     get_tlp_transaction = TRANSACTION_UNKNOWN;

        // // CAS:      get_tlp_transaction = TRANSACTION_UNKNOWN;

        // // LPrfx:    get_tlp_transaction = TRANSACTION_UNKNOWN;

        // // EPrfx:    get_tlp_transaction = TRANSACTION_UNKNOWN;

        // default:  return;

      // endcase

    // endfunction: display_tlp_type

    // // --------------------------------------------------------------------

    // //

    // function void set_little_endian_header( logic [127:0] data);

      // logic [2:0] fmt = data[7:5];

      // if(fmt > 3'b011)

      // begin

        // $display("!!! %16.t | fmt 3'b%b not supported", $time, fmt);

        // $stop;

      // end

      // header_is_4_dw = data[5];

      // for(int i = 0; i < (header_is_4_dw ? 16 : 12); i += 4)

        // {header[i + 0], header[i + 1], header[i + 2], header[i + 3]} = data[i*8 +: 32];

      // header_type      = get_tlp_type(header[0]);

      // routing_type     = get_tlp_routing(header_type);

      // transaction_type = get_tlp_transaction(header_type);

      // fmt_type = header[0];

      // tc       = header[1][6:4];

      // th       = header[1][0];

      // attr     = {header[1][2], header[2][5:4]};

      // td       = header[2][7];

      // ep       = header[2][6];

      // length   = {header[2][1:0], header[3]};

    // endfunction: set_little_endian_header

    // // --------------------------------------------------------------------

    // //

    // function void display_header(string str);

      // $display("??? %16.t | .....................", $time);

      // $display("??? %16.t | %s | TLP type | %s", $time, str, header_type.name);

      // // $display("??? %16.t | fmt           = %b | type = %b", $time, fmt_type[7:5], fmt_type[4:0]);

      // $display("??? %16.t | length = %d", $time, length);

      // $display("??? %16.t | tc = %b | th = %b | attr = %b | td = %b | ep = %b",

                // $time, tc, th, attr, td, ep);

      // if(routing_type == ADDRESS)

        // if(header_is_4_dw)

          // $display("??? %16.t | address[63:0] = 0x%16.x", $time,

                    // { header[8],  header[9],  header[10], header[11],

                      // header[12], header[13], header[14], header[15][7:2], 2'b00});

        // else

          // $display("??? %16.t | address[31:0] = 0x%8.x", $time,

                    // { header[8],  header[9],  header[10], header[11][7:2], 2'b00});

      // else if(routing_type == ID)

          // $display("??? %16.t | bus = 0x%2.x | device = 0x%x | function = 0x%x", $time,

                    // header[8],  header[9][7:3],  header[9][2:0]);

      // if(transaction_type == COMPLETER)

      // begin

        // $display("??? %16.t | Completer ID  = %b", $time, {header[4], header[5]});

        // $display("??? %16.t | requester ID  = %b", $time, {header[8], header[9]});

        // $display("??? %16.t | tag           = %b", $time, header[10]);

      // end

      // else

      // begin

        // $display("??? %16.t | requester ID  = %b", $time, {header[4], header[5]});

        // $display("??? %16.t | tag           = %b", $time, header[6]);

        // $display("??? %16.t | last DW BE = %b | first DW BE = %b",

                  // $time, header[7][7:4], header[7][3:0]);

      // end

      // display_tlp_type(header_type);

      // $display("??? %16.t | ---------------------", $time);

    // endfunction: display_header

    // // //--------------------------------------------------------------------

    // // //

    // // function new;

    // // endfunction: new

  // // --------------------------------------------------------------------

  // //

  // endclass: base_tlp_packet_class

// --------------------------------------------------------------------

//

endpackage: pcie_bfm_pkg