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

////                                                              ////

//// usbSlaveControl.v                                            ////

////                                                              ////

//// This file is part of the usbhostslave opencores effort.

//// <http://www.opencores.org/cores//>                           ////

////                                                              ////

//// Module Description:                                          ////

//// 

////                                                              ////

//// To Do:                                                       ////

//// 

////                                                              ////

//// Author(s):                                                   ////

//// - Steve Fielding, sfielding@base2designs.com                 ////

////                                                              ////

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

////                                                              ////

//// Copyright (C) 2004 Steve Fielding 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>                   ////

////                                                              ////

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

//

// $Id: usbSlaveControl.v,v 1.1.1.1 2004-10-11 04:01:10 sfielding Exp $

//

// CVS Revision History

//

// $Log: not supported by cvs2svn $

//

module usbSlaveControl(

        clk, rst,

        //getPacket

        RxByteStatus, RxData, RxDataValid,

        SIERxTimeOut, RxFifoData,

        //speedCtrlMux

        fullSpeedRate, fullSpeedPol,

        //SCTxPortArbiter

        SCTxPortEn, SCTxPortRdy,

        SCTxPortData, SCTxPortCtrl,

        //rxStatusMonitor

        connectStateIn,

        resumeDetectedIn,

  //USBHostControlBI 

  busAddress,

  busDataIn,

  busDataOut,

  busWriteEn,

  busStrobe_i,

        SOFRxedIntOut,

  resetEventIntOut,

  resumeIntOut,

  transDoneIntOut,

  NAKSentIntOut,

  slaveControlSelect,

  //fifoMux

  TxFifoEP0REn,

  TxFifoEP1REn,

  TxFifoEP2REn,

  TxFifoEP3REn,

  TxFifoEP0Data,

  TxFifoEP1Data,

  TxFifoEP2Data,

  TxFifoEP3Data,

  TxFifoEP0Empty,

  TxFifoEP1Empty,

  TxFifoEP2Empty,

  TxFifoEP3Empty,

  RxFifoEP0WEn,

  RxFifoEP1WEn,

  RxFifoEP2WEn,

  RxFifoEP3WEn,

  RxFifoEP0Full,

  RxFifoEP1Full,

  RxFifoEP2Full,

  RxFifoEP3Full

         );

input clk, rst;

//getPacket

input [7:0] RxByteStatus;

input [7:0] RxData;

input RxDataValid;

input SIERxTimeOut;

output [7:0] RxFifoData;

//speedCtrlMux

output fullSpeedRate;

output fullSpeedPol;

//HCTxPortArbiter

output SCTxPortEn;

input SCTxPortRdy;

output [7:0] SCTxPortData;

output [7:0] SCTxPortCtrl;

//rxStatusMonitor

input [1:0] connectStateIn;

input resumeDetectedIn;

//USBHostControlBI 

input [4:0] busAddress;

input [7:0] busDataIn;

output [7:0] busDataOut;

input busWriteEn;

input busStrobe_i;

output SOFRxedIntOut;

output resetEventIntOut;

output resumeIntOut;

output transDoneIntOut;

output NAKSentIntOut;

input slaveControlSelect;

//fifoMux

output TxFifoEP0REn;

output TxFifoEP1REn;

output TxFifoEP2REn;

output TxFifoEP3REn;

input [7:0] TxFifoEP0Data;

input [7:0] TxFifoEP1Data;

input [7:0] TxFifoEP2Data;

input [7:0] TxFifoEP3Data;

input TxFifoEP0Empty;

input TxFifoEP1Empty;

input TxFifoEP2Empty;

input TxFifoEP3Empty;

output RxFifoEP0WEn;

output RxFifoEP1WEn;

output RxFifoEP2WEn;

output RxFifoEP3WEn;

input RxFifoEP0Full;

input RxFifoEP1Full;

input RxFifoEP2Full;

input RxFifoEP3Full;

wire clk;

wire rst;

wire [7:0] RxByteStatus;

wire [7:0] RxData;

wire RxDataValid;

wire SIERxTimeOut;

wire [7:0] RxFifoData;

wire fullSpeedRate;

wire fullSpeedPol;

wire [7:0] SCTxPortData;

wire [7:0] SCTxPortCtrl;

wire [1:0] connectStateIn;

wire resumeDetectedIn;

wire [4:0] busAddress;

wire [7:0] busDataIn;

wire [7:0] busDataOut;

wire busWriteEn;

wire busStrobe_i;

wire SOFRxedIntOut;

wire resetEventIntOut;

wire resumeIntOut;

wire transDoneIntOut;

wire NAKSentIntOut;

wire slaveControlSelect;

wire TxFifoEP0REn;

wire TxFifoEP1REn;

wire TxFifoEP2REn;

wire TxFifoEP3REn;

wire [7:0] TxFifoEP0Data;

wire [7:0] TxFifoEP1Data;

wire [7:0] TxFifoEP2Data;

wire [7:0] TxFifoEP3Data;

wire TxFifoEP0Empty;

wire TxFifoEP1Empty;

wire TxFifoEP2Empty;

wire TxFifoEP3Empty;

wire RxFifoEP0WEn;

wire RxFifoEP1WEn;

wire RxFifoEP2WEn;

wire RxFifoEP3WEn;

wire RxFifoEP0Full;

wire RxFifoEP1Full;

wire RxFifoEP2Full;

wire RxFifoEP3Full;

//internal wiring

wire [7:0] directCntlCntl;

wire [7:0] directCntlData;

wire directCntlGnt;

wire directCntlReq;

wire directCntlWEn;

wire [7:0] sendPacketCntl;

wire [7:0] sendPacketData;

wire sendPacketGnt;

wire sendPacketReq;

wire sendPacketWEn;

wire SCTxPortArbRdyOut;

wire transDone;

wire [1:0] directLineState;

wire directLineCtrlEn;

wire [3:0] RxPID;

wire [1:0] connectStateOut;

wire resumeIntFromRxStatusMon;

wire [1:0] endP0TransTypeReg;

wire [1:0] endP1TransTypeReg;

wire [1:0] endP2TransTypeReg;

wire [1:0] endP3TransTypeReg;

wire [1:0] endP0NAKTransTypeReg;

wire [1:0] endP1NAKTransTypeReg;

wire [1:0] endP2NAKTransTypeReg;

wire [1:0] endP3NAKTransTypeReg;

wire [3:0] endP0ControlReg;

wire [3:0] endP1ControlReg;

wire [3:0] endP2ControlReg;

wire [3:0] endP3ControlReg;

wire [7:0] endP0StatusReg;

wire [7:0] endP1StatusReg;

wire [7:0] endP2StatusReg;

wire [7:0] endP3StatusReg;

wire [6:0] USBTgtAddress;

wire [10:0] frameNum;

wire clrEP0Rdy;

wire clrEP1Rdy;

wire clrEP2Rdy;

wire clrEP3Rdy;

wire SCGlobalEn;

wire ACKRxed;

wire CRCError;

wire RXOverflow;

wire RXTimeOut;

wire bitStuffError;

wire dataSequence;

wire stallSent;

wire NAKSent;

wire SOFRxed;

wire [3:0] endPControlReg;

wire [1:0] transTypeNAK;

wire [1:0] transType;

wire [3:0] currEndP;

wire getPacketREn;

wire getPacketRdy;

wire [3:0] slaveControllerPIDOut;

wire slaveControllerReadyIn;

wire slaveControllerWEnOut;

wire TxFifoRE;

wire [7:0] TxFifoData;

wire TxFifoEmpty;

wire RxFifoWE;

wire RxFifoFull;

wire resetEventFromRxStatusMon;

wire clrEPRdy;

wire endPMuxErrorsWEn;

USBSlaveControlBI u_USBSlaveControlBI

  (.address(busAddress),

  .dataIn(busDataIn),

  .dataOut(busDataOut),

  .writeEn(busWriteEn),

  .strobe_i(busStrobe_i),

  .clk(clk),

  .rst(rst),

        .SOFRxedIntOut(SOFRxedIntOut),

  .resetEventIntOut(resetEventIntOut),

  .resumeIntOut(resumeIntOut),

  .transDoneIntOut(transDoneIntOut),

        .NAKSentIntOut(NAKSentIntOut),

  .endP0TransTypeReg(endP0TransTypeReg),

  .endP0NAKTransTypeReg(endP0NAKTransTypeReg),

  .endP1TransTypeReg(endP1TransTypeReg),

  .endP1NAKTransTypeReg(endP1NAKTransTypeReg),

  .endP2TransTypeReg(endP2TransTypeReg),

  .endP2NAKTransTypeReg(endP2NAKTransTypeReg),

  .endP3TransTypeReg(endP3TransTypeReg),

  .endP3NAKTransTypeReg(endP3NAKTransTypeReg),

  .endP0ControlReg(endP0ControlReg),

  .endP1ControlReg(endP1ControlReg),

  .endP2ControlReg(endP2ControlReg),

  .endP3ControlReg(endP3ControlReg),

  .EP0StatusReg(endP0StatusReg),

  .EP1StatusReg(endP1StatusReg),

  .EP2StatusReg(endP2StatusReg),

  .EP3StatusReg(endP3StatusReg),

  .SCAddrReg(USBTgtAddress),

  .frameNum(frameNum),

  .connectStateIn(connectStateOut),

        .SOFRxedIn(SOFRxed),

  .resetEventIn(resetEventFromRxStatusMon),

  .resumeIntIn(resumeIntFromRxStatusMon),

  .transDoneIn(transDone),

  .NAKSentIn(NAKSent),

  .slaveControlSelect(slaveControlSelect),

  .clrEP0Ready(clrEP0Rdy),

  .clrEP1Ready(clrEP1Rdy),

  .clrEP2Ready(clrEP2Rdy),

  .clrEP3Ready(clrEP3Rdy),

  .TxLineState(directLineState),

  .LineDirectControlEn(directLineCtrlEn),

  .fullSpeedPol(fullSpeedPol),

  .fullSpeedRate(fullSpeedRate),

  .SCGlobalEn(SCGlobalEn)

  );

slavecontroller u_slavecontroller

  (.CRCError(CRCError),

  .NAKSent(NAKSent),

  .RxByte(RxData),

  .RxDataWEn(RxDataValid),

  .RxOverflow(RXOverflow),

  .RxStatus(RxByteStatus),

  .RxTimeOut(RXTimeOut),

  .SCGlobalEn(SCGlobalEn),

  .SOFRxed(SOFRxed),

  .USBEndPControlReg(endPControlReg),

  .USBEndPNakTransTypeReg(transTypeNAK),

  .USBEndPTransTypeReg(transType),

  .USBEndP(currEndP),

  .USBTgtAddress(USBTgtAddress),

  .bitStuffError(bitStuffError),

  .clk(clk),

  .clrEPRdy(clrEPRdy),

  .endPMuxErrorsWEn(endPMuxErrorsWEn),

  .frameNum(frameNum),

  .getPacketREn(getPacketREn),

  .getPacketRdy(getPacketRdy),

  .rst(rst),

  .sendPacketPID(slaveControllerPIDOut),

  .sendPacketRdy(slaveControllerReadyIn),

  .sendPacketWEn(slaveControllerWEnOut),

  .stallSent(stallSent),

  .transDone(transDone)

    );

endpMux u_endpMux (

  .clk(clk),

  .rst(rst),

  .currEndP(currEndP),

  .NAKSent(NAKSent),

  .stallSent(stallSent),

  .CRCError(CRCError),

  .bitStuffError(bitStuffError),

  .RxOverflow(RXOverflow),

  .RxTimeOut(RXTimeOut),

  .dataSequence(dataSequence),

  .ACKRxed(ACKRxed),

  .transType(transType),

  .transTypeNAK(transTypeNAK),

  .endPControlReg(endPControlReg),

  .clrEPRdy(clrEPRdy),

  .endPMuxErrorsWEn(endPMuxErrorsWEn),

  .endP0ControlReg(endP0ControlReg),

  .endP1ControlReg(endP1ControlReg),

  .endP2ControlReg(endP2ControlReg),

  .endP3ControlReg(endP3ControlReg),

  .endP0StatusReg(endP0StatusReg),

  .endP1StatusReg(endP1StatusReg),

  .endP2StatusReg(endP2StatusReg),

  .endP3StatusReg(endP3StatusReg),

  .endP0TransTypeReg(endP0TransTypeReg),

  .endP1TransTypeReg(endP1TransTypeReg),

  .endP2TransTypeReg(endP2TransTypeReg),

  .endP3TransTypeReg(endP3TransTypeReg),

  .endP0NAKTransTypeReg(endP0NAKTransTypeReg),

  .endP1NAKTransTypeReg(endP1NAKTransTypeReg),

  .endP2NAKTransTypeReg(endP2NAKTransTypeReg),

  .endP3NAKTransTypeReg(endP3NAKTransTypeReg),

  .clrEP0Rdy(clrEP0Rdy),

  .clrEP1Rdy(clrEP1Rdy),

  .clrEP2Rdy(clrEP2Rdy),

  .clrEP3Rdy(clrEP3Rdy)

    );

slaveSendPacket u_slaveSendPacket

  (.PID(slaveControllerPIDOut),

        .SCTxPortCntl(sendPacketCntl),

        .SCTxPortData(sendPacketData),

        .SCTxPortGnt(sendPacketGnt),

        .SCTxPortRdy(SCTxPortArbRdyOut),

        .SCTxPortReq(sendPacketReq),

        .SCTxPortWEn(sendPacketWEn),

        .clk(clk),

        .fifoData(TxFifoData),

        .fifoEmpty(TxFifoEmpty),

        .fifoReadEn(TxFifoRE),

        .rst(rst),

        .sendPacketRdy(slaveControllerReadyIn),

        .sendPacketWEn(slaveControllerWEnOut) );

slaveDirectControl u_slaveDirectControl

        (.SCTxPortCntl(directCntlCntl),

        .SCTxPortData(directCntlData),

        .SCTxPortGnt(directCntlGnt),

        .SCTxPortRdy(SCTxPortArbRdyOut),

        .SCTxPortReq(directCntlReq),

        .SCTxPortWEn(directCntlWEn),

        .clk(clk),

        .directControlEn(directLineCtrlEn),

        .directControlLineState(directLineState),

        .rst(rst) );

SCTxPortArbiter u_SCTxPortArbiter

        (.SCTxPortCntl(SCTxPortCtrl),

        .SCTxPortData(SCTxPortData),

        .SCTxPortRdyIn(SCTxPortRdy),

        .SCTxPortRdyOut(SCTxPortArbRdyOut),

        .SCTxPortWEnable(SCTxPortEn),

        .clk(clk),

        .directCntlCntl(directCntlCntl),

        .directCntlData(directCntlData),

        .directCntlGnt(directCntlGnt),

        .directCntlReq(directCntlReq),

        .directCntlWEn(directCntlWEn),

        .rst(rst),

        .sendPacketCntl(sendPacketCntl),

        .sendPacketData(sendPacketData),

        .sendPacketGnt(sendPacketGnt),

        .sendPacketReq(sendPacketReq),

        .sendPacketWEn(sendPacketWEn) );

slaveGetPacket u_slaveGetPacket

  (.ACKRxed(ACKRxed),

  .CRCError(CRCError),

        .RXDataIn(RxData),

        .RXDataValid(RxDataValid),

        .RXFifoData(RxFifoData),

        .RXFifoFull(RxFifoFull),

        .RXFifoWEn(RxFifoWE),

        .RXPacketRdy(getPacketRdy),

        .RXStreamStatusIn(RxByteStatus),

        .RxPID(RxPID),

        .SIERxTimeOut(SIERxTimeOut),

        .clk(clk),

  .RXOverflow(RXOverflow),

  .RXTimeOut(RXTimeOut),

  .bitStuffError(bitStuffError),

  .dataSequence(dataSequence),

        .getPacketEn(getPacketREn),

        .rst(rst) );

slaveRxStatusMonitor    u_slaveRxStatusMonitor

        (.connectStateIn(connectStateIn),

        .connectStateOut(connectStateOut),

        .resumeDetectedIn(resumeDetectedIn),

        .resetEventOut(resetEventFromRxStatusMon),

        .resumeIntOut(resumeIntFromRxStatusMon),

        .clk(clk),

        .rst(rst)  );

fifoMux u_fifoMux (

  .currEndP(currEndP),

  //TxFifo

  .TxFifoREn(TxFifoRE),

  .TxFifoEP0REn(TxFifoEP0REn),

  .TxFifoEP1REn(TxFifoEP1REn),

  .TxFifoEP2REn(TxFifoEP2REn),

  .TxFifoEP3REn(TxFifoEP3REn),

  .TxFifoData(TxFifoData),

  .TxFifoEP0Data(TxFifoEP0Data),

  .TxFifoEP1Data(TxFifoEP1Data),

  .TxFifoEP2Data(TxFifoEP2Data),

  .TxFifoEP3Data(TxFifoEP3Data),

  .TxFifoEmpty(TxFifoEmpty),

  .TxFifoEP0Empty(TxFifoEP0Empty),

  .TxFifoEP1Empty(TxFifoEP1Empty),

  .TxFifoEP2Empty(TxFifoEP2Empty),

  .TxFifoEP3Empty(TxFifoEP3Empty),

  //RxFifo

  .RxFifoWEn(RxFifoWE),

  .RxFifoEP0WEn(RxFifoEP0WEn),

  .RxFifoEP1WEn(RxFifoEP1WEn),

  .RxFifoEP2WEn(RxFifoEP2WEn),

  .RxFifoEP3WEn(RxFifoEP3WEn),

  .RxFifoFull(RxFifoFull),

  .RxFifoEP0Full(RxFifoEP0Full),

  .RxFifoEP1Full(RxFifoEP1Full),

  .RxFifoEP2Full(RxFifoEP2Full),

  .RxFifoEP3Full(RxFifoEP3Full)

    );

endmodule