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// SDHC-SC-Core
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// Secure Digital High Capacity Self Configuring Core
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//
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// (C) Copyright 2010, Rainer Kastl
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of the nor the
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// names of its contributors may be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// File : WbTransaction.sv
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// Owner : Rainer Kastl
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// Description : Transaction on the wishbone bus
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// Links :
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//
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`ifndef WBTRANSACTION_SV
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`define WBTRANSACTION_SV
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typedef bit[2:0] WbAddr;
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typedef bit[31:0] WbData;
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class WbTransaction;
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typedef enum { Read, Write } kinds;
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typedef enum { Classic, Burst, End } types;
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rand types Type;
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rand kinds Kind;
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rand WbAddr Addr;
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rand WbData Data;
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function void display();
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$display(toString());
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endfunction
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function string toString();
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string s;
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$swrite(s, "Transaction: %s, %s, %b, %b", Type.name(), Kind.name(), Addr, Data);
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return s;
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endfunction
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constraint NotImplementedYet {
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Type == Classic;
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};
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endclass
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class WbTransactionSequence;
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rand WbTransaction transactions[];
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int size = 0;
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constraint Transactions {
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transactions.size() == size;
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foreach(transactions[i]) {
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if (i > 0) {
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if (transactions[i].Type == WbTransaction::Burst)
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transactions[i].Type == WbTransaction::Burst || WbTransaction::End;
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}
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}
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if (transactions[size - 2].Type == WbTransaction::Burst)
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transactions[size - 1].Type == WbTransaction::End;
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};
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function void display();
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foreach(transactions[i])
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transactions[i].display();
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endfunction
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endclass
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typedef mailbox #(WbTransaction) WbTransMb;
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`endif
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