Subversion Repositories apbtoaes128

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

////

////

////    AES CORE BLOCK

////

////

////

//// This file is part of the APB to I2C project

////

//// http://www.opencores.org/cores/apbi2c/

////

////

////

//// Description

////

//// Implementation of APB IP core according to

////

//// aes128_spec IP core specification document.

////

////

////

//// To Do: Things are right here but always all block can suffer changes

////

////

////

////

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//// Author(s): - Felipe Fernandes Da Costa, fefe2560@gmail.com

////              Julio Cesar 

////

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

////

////

//// Copyright (C) 2009 Authors and OPENCORES.ORG

////

////

////

//// This source file may be used and distributed without

////

//// restriction provided that this copyright statement is not

////

//// removed from the file and that any derivative work contains

//// the original copyright notice and the associated disclaimer.

////

////

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

////

//// and/or modify it under the terms of the GNU Lesser General

////

//// Public License as published by the Free Software Foundation;

//// either version 2.1 of the License, or (at your option) any

////

//// later version.

////

////

////

//// This source is distributed in the hope that it will be

////

//// useful, but WITHOUT ANY WARRANTY; without even the implied

////

//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR

////

//// PURPOSE. See the GNU Lesser General Public License for more

//// details.

////

////

////

//// You should have received a copy of the GNU Lesser General

////

//// Public License along with this source; if not, download it

////

//// from http://www.opencores.org/lgpl.shtml

////

////

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

module aes_ip

(

        //OUTPUTS

        output int_ccf,

        output int_err,

        output dma_req_wr,

        output dma_req_rd,

        output PREADY,

        output PSLVERR,

        output [31:0] PRDATA,

        //INPUTS

        input  [ 3:0] PADDR,

        input  [31:0] PWDATA,

        input PWRITE,

        input PENABLE,

        input PSEL,

        input PCLK,

        input PRESETn

);

wire [31:0] col_out;

wire [31:0] key_out;

wire [31:0] iv_out;

wire end_aes;

wire [ 3:0] iv_en;

wire [ 3:0] iv_sel_rd;

wire [ 3:0] key_en;

wire [ 1:0] key_sel_rd;

wire [ 1:0] data_type;

wire [ 1:0] addr;

wire [ 1:0] op_mode;

wire [ 1:0] aes_mode;

wire start;

wire disable_core;

wire write_en;

wire read_en;

wire first_block;

assign PREADY = 1'b1;

assign PSLVERR = 1'b0;

host_interface HOST_INTERFACE

(

        .key_en       ( key_en       ),

        .col_addr     ( addr         ),

        .col_wr_en    ( write_en     ),

        .col_rd_en    ( read_en      ),

        .key_sel      ( key_sel_rd   ),

        .iv_en        ( iv_en        ),

        .iv_sel       ( iv_sel_rd    ),

        .int_ccf      ( int_ccf      ),

        .int_err      ( int_err      ),

        .chmod        ( aes_mode     ),

        .mode         ( op_mode      ),

        .data_type    ( data_type    ),

        .disable_core ( disable_core ),

        .first_block  ( first_block  ),

        .dma_req_wr   ( dma_req_wr   ),

        .dma_req_rd   ( dma_req_rd   ),

        .start_core   ( start        ),

        .PRDATA       ( PRDATA       ),

        .PADDR        ( PADDR        ),

        .PWDATA       ( PWDATA       ),

        .PWRITE       ( PWRITE       ),

        .PENABLE      ( PENABLE      ),

        .PSEL         ( PSEL         ),

        .PCLK         ( PCLK         ),

        .PRESETn      ( PRESETn      ),

        .key_bus      ( key_out      ),

        .col_bus      ( col_out      ),

        .iv_bus       ( iv_out       ),

        .ccf_set      ( end_aes      )

);

aes_core AES_CORE

(

        .col_out      ( col_out      ),

        .key_out      ( key_out      ),

        .iv_out       ( iv_out       ),

        .end_aes      ( end_aes      ),

        .bus_in       ( PWDATA       ),

        .iv_en        ( iv_en        ),

        .iv_sel_rd    ( iv_sel_rd    ),

        .key_en       ( key_en       ),

        .key_sel_rd   ( key_sel_rd   ),

        .data_type    ( data_type    ),

        .addr         ( addr         ),

        .op_mode      ( op_mode      ),

        .aes_mode     ( aes_mode     ),

        .start        ( start        ),

        .disable_core ( disable_core ),

        .write_en     ( write_en     ),

        .read_en      ( read_en      ),

        .first_block  ( first_block  ),

        .rst_n        ( PRESETn      ),

        .clk          ( PCLK         )

);

endmodule