Subversion Repositories sdhc-sc-core

// SDHC-SC-Core

// Secure Digital High Capacity Self Configuring Core

//

// (C) Copyright 2010, Rainer Kastl

// 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.

//     * Neither the name of the  nor the

//       names of its contributors may 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  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.

//

// File        : SdCoreTransaction.sv

// Owner       : Rainer Kastl

// Description :

// Links       :

//

`ifndef SDCORETRANSACTION_SV

`define SDCORETRANSACTION_SV

typedef bit[0:511][7:0] DataBlock;

class SdCoreTransaction;

        typedef enum { readSingleBlock, readMultipleBlock, writeSingleBlock,

                writeMultipleBlocks, erase, readSdCardStatus } kinds;

        rand kinds kind;

        rand int startAddr;

        rand int endAddr;

        rand DataBlock data[];

        local int maxAddr = 31;

        constraint datablocks {

                if (kind == writeMultipleBlocks) {

                        data.size() inside {[0:1000]};

                }

                else if (kind == writeSingleBlock) {

                        data.size() == 1;

                }

                else {

                        data.size() == 0;

                }

                kind == readSingleBlock ||

                kind == writeSingleBlock;

                startAddr inside {[0:maxAddr]};

                endAddr inside {[0:maxAddr]};

        };

        function SdCoreTransaction copy();

                SdCoreTransaction rhs = new();

                rhs.kind = this.kind;

                rhs.startAddr = this.startAddr;

                rhs.endAddr = this.endAddr;

                rhs.data = new[this.data.size()];

                rhs.data = this.data;

                return rhs;

        endfunction

        function string toString();

                string s;

                $swrite(s, "kind: %p, addresses: %d, %d", kind, startAddr, endAddr);

                return s;

        endfunction

        // compare kind and addresses

        // NOTE: data has to be checked with other objects

        function bit compare(input SdCoreTransaction rhs);

                if (rhs.kind == this.kind && rhs.startAddr == this.startAddr)

                        return 1;

                else return 0;

        endfunction

endclass

class SdCoreTransactionSequence;

        rand SdCoreTransaction transactions[];

        local const int size = 1000;

        function new();

                transactions = new[size];

                foreach(transactions[i]) transactions[i] = new();

        endfunction

        constraint randlength {

                transactions.size() inside {[100:1000]};

                transactions.size() < size;

        }

endclass

typedef mailbox #(SdCoreTransaction) SdCoreTransSeqMb;

`endif