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        : SdCardState.sv

// Owner       : Rainer Kastl

// Description : State of an SD Card model

// Links       :

//

`ifndef SDCARDSTATE

`define SDCARDSTATE

`include "SDCommandArg.sv"

typedef enum {

        idle = 0, ready = 1, ident = 2, stby = 3, trans = 4,

        data = 5, rcv = 6, prg = 7, dis = 8

} SdCardModelStates;

class SdCardModelState;

        logic OutOfRange;

        logic AddressError;

        logic BlockLenError;

        logic ComCrcError;

        logic IllegalCommand;

        logic Error;

        logic[3:0] state;

        logic ReadyForData;

        logic AppCmd;

        logic AkeSeqError;

        function new();

                OutOfRange = 0;

                AddressError = 0;

                BlockLenError = 0;

                ComCrcError = 0;

                IllegalCommand = 0;

                Error = 0;

                state = idle;

                ReadyForData = 0;

                AppCmd = 0;

                AkeSeqError = 0;

        endfunction

        function void recvCMD55();

                AppCmd = 1;

        endfunction

        function automatic SDCommandArg get();

                SDCommandArg temp = 0;

                temp[31] = OutOfRange;

                temp[30] = AddressError;

                temp[29] = BlockLenError;

                temp[12:9] = state;

                temp[8] = ReadyForData;

                temp[5] = AppCmd;

                return temp;

        endfunction

endclass

`endif