Subversion Repositories iso7816_3_master

/*

Author: Sebastien Riou (acapola)

Creation date: 17:16:40 01/09/2011

$LastChangedDate: 2011-02-13 16:20:10 +0100 (Sun, 13 Feb 2011) $

$LastChangedBy: acapola $

$LastChangedRevision: 15 $

$HeadURL: file:///svn/iso7816_3_master/iso7816_3_master/trunk/test/ComTxDriverTasks.v $

This file is under the BSD licence:

Copyright (c) 2011, Sebastien Riou

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

The names of contributors may not be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR

CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

`default_nettype none

`include "HexStringConversion.v"

//low level tasks

task sendByte;

  input [7:0] data;

  begin

      wait(bufferFull==1'b0);

      dataIn=data;

      nWeDataIn=0;

      @(posedge COM_clk);

      dataIn=8'hxx;

      nWeDataIn=1;

      @(posedge COM_clk);

        end

endtask

task sendWord;

  input [15:0] data;

  begin

      sendByte(data[15:8]);

                sendByte(data[7:0]);

        end

endtask

//return when the stop bit of the last byte is starting

task waitEndOfTx;

  begin

      @(posedge COM_clk)

                wait(txPending==0);

                wait(isTx==0);

        end

endtask

//Higher level tasks

task sendHexBytes;

        input [16*257:0] bytesString;

        integer i;

        reg [15:0] byteInHex;

        reg [7:0] byteToSend;

begin

        i=16*257;

        getNextHexByte(bytesString, i, byteToSend, i);

        while(i!=-1) begin

                sendByte(byteToSend);

                getNextHexByte(bytesString, i, byteToSend, i);

        end

end

endtask

task sendT0TpduLc;

        input [8*3*(256+5+1+2):0] bytesString;

        integer i;

        reg [15:0] byteInHex;

        reg [7:0] byteToSend;

        reg [8*(256+5+1+2):0] cmdBytes;

        integer nBytes;

begin

        hexStringToBytes(bytesString,cmdBytes,nBytes);

        sendByte(cmdBytes[0*8+:8]);

        sendByte(cmdBytes[1*8+:8]);

        sendByte(cmdBytes[2*8+:8]);

        sendByte(cmdBytes[3*8+:8]);

        sendByte(cmdBytes[4*8+:8]);

        if(0!==cmdBytes[4*8+:8]) begin

                i=5;

                receiveAndCheckByte(cmdBytes[1*8+:8]);//TODO: handle NACK

                while(i!=nBytes) begin

                        sendByte(cmdBytes[i*8+:8]);

                        i=i+1;

                end

        end

end

endtask

task sendT0TpduLeFull;

        input [8*3*5:0] bytesString;

        output [8*256:0] leBytes;

        output integer le;

        integer i;

        reg [15:0] byteInHex;

        reg [7:0] byteToSend;

        reg [8*(256+5+1+2):0] cmdBytes;

        integer nBytes;

begin

        hexStringToBytes(bytesString,cmdBytes,nBytes);

        sendByte(cmdBytes[0*8+:8]);

        sendByte(cmdBytes[1*8+:8]);

        sendByte(cmdBytes[2*8+:8]);

        sendByte(cmdBytes[3*8+:8]);

        sendByte(cmdBytes[4*8+:8]);

        le = (0===cmdBytes[4*8+:8]) ? 256 : cmdBytes[4*8+:8];

        if((nBytes!==5) & (le !== nBytes-5)) begin

                $display("ERROR: le (%d) don't match with nBytes (%d) in command %s",le,nBytes,bytesString);

                $finish;

        end

        receiveByte(cmdBytes[1*8+:8]);

        for(i=0;i<le;i=i+1) begin

                receiveByte(leBytes[i*8+:8]);

        end

end

endtask

task sendT0TpduLe;

        input [8*3*5:0] bytesString;

        output [8*256:0] leBytes;

        integer i;

begin

        sendT0TpduLeFull(bytesString,leBytes,i);

end

endtask

task sendT0TpduLeCheck;

        input [8*3*5:0] bytesString;

        input [8*3*256:0] expectedLeBytesString;

        integer i;

        reg [15:0] byteInHex;

        reg [7:0] byteToSend;

        reg [8*(256+5+1+2):0] cmdBytes;

        reg [8*256:0] leBytes;

        reg [8*256:0] expectedLeBytes;

        integer nBytes;

        integer expectedLe;

        integer le;

begin

        sendT0TpduLeFull(bytesString,leBytes,le);

        hexStringToBytes(expectedLeBytesString,expectedLeBytes,expectedLe);

        if(expectedLe !== le) begin

                $display("ERROR: expectedLe (%d) don't match with le (%d) in command %s, %s",expectedLe,le,bytesString, expectedLeBytesString);

                $finish;

        end

        for(i=0;i<le;i=i+1) begin

                if(leBytes[i*8+:8]!==expectedLeBytes[i*8+:8]) begin

                        $display("ERROR: recived %x instead of %x at index %d in command %s, %s",leBytes[i*8+:8],expectedLeBytes[i*8+:8],i,bytesString, expectedLeBytesString);

                        $finish;

                end

        end

end

endtask