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

////                                                              ////

//// usbHostControl.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>                   ////

////                                                              ////

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

//

`include "timescale.v"

module usbHostControl(

  busClk, rstSyncToBusClk,

  usbClk, rstSyncToUsbClk,

  //sendPacket

  TxFifoRE, TxFifoData, TxFifoEmpty,

  //getPacket

  RxFifoWE, RxFifoData, RxFifoFull,

  RxByteStatus, RxData, RxDataValid,

  SIERxTimeOut, SIERxTimeOutEn,

  //speedCtrlMux

  fullSpeedRate, fullSpeedPol,

  //HCTxPortArbiter

  HCTxPortEn, HCTxPortRdy,

  HCTxPortData, HCTxPortCtrl,

  //rxStatusMonitor

  connectStateIn,

  resumeDetectedIn,

  //USBHostControlBI 

  busAddress,

  busDataIn,

  busDataOut,

  busWriteEn,

  busStrobe_i,

  SOFSentIntOut,

  connEventIntOut,

  resumeIntOut,

  transDoneIntOut,

  hostControlSelect

    );

input busClk;

input rstSyncToBusClk;

input usbClk;

input rstSyncToUsbClk;

//sendPacket

output TxFifoRE;

input [7:0] TxFifoData;

input TxFifoEmpty;

//getPacket

output RxFifoWE;

output [7:0] RxFifoData;

input RxFifoFull;

input [7:0] RxByteStatus;

input [7:0] RxData;

input RxDataValid;

input SIERxTimeOut;

output SIERxTimeOutEn;

//speedCtrlMux

output fullSpeedRate;

output fullSpeedPol;

//HCTxPortArbiter

output HCTxPortEn;

input HCTxPortRdy;

output [7:0] HCTxPortData;

output [7:0] HCTxPortCtrl;

//rxStatusMonitor

input [1:0] connectStateIn;

input resumeDetectedIn;

//USBHostControlBI 

input [3:0] busAddress;

input [7:0] busDataIn;

output [7:0] busDataOut;

input busWriteEn;

input busStrobe_i;

output SOFSentIntOut;

output connEventIntOut;

output resumeIntOut;

output transDoneIntOut;

input hostControlSelect;

wire busClk;

wire rstSyncToBusClk;

wire usbClk;

wire rstSyncToUsbClk;

wire [10:0] frameNum;

wire SOFSent;

wire TxFifoRE;

wire [7:0] TxFifoData;

wire TxFifoEmpty;

wire RxFifoWE;

wire [7:0] RxFifoData;

wire RxFifoFull;

wire [7:0] RxByteStatus;

wire [7:0] RxData;

wire RxDataValid;

wire SIERxTimeOut;

wire SIERxTimeOutEn;

wire fullSpeedRate;

wire fullSpeedPol;

wire HCTxPortEn;

wire HCTxPortRdy;

wire [7:0] HCTxPortData;

wire [7:0] HCTxPortCtrl;

wire [1:0] connectStateIn;

wire resumeDetectedIn;

wire [3:0] busAddress;

wire [7:0] busDataIn;

wire [7:0] busDataOut;

wire busWriteEn;

wire busStrobe_i;

wire SOFSentIntOut;

wire connEventIntOut;

wire resumeIntOut;

wire transDoneIntOut;

wire hostControlSelect;

//internal wiring

wire SOFTimerClr;

wire getPacketREn;

wire getPacketRdy;

wire HCTxGnt;

wire HCTxReq;

wire [3:0] HC_PID;

wire HC_SP_WEn;

wire SOFTxGnt;

wire SOFTxReq;

wire SOF_SP_WEn;

wire SOFEnable;

wire SOFSyncEn;

wire sendPacketCPReadyIn;

wire sendPacketCPReadyOut;

wire [3:0] sendPacketCPPIDIn;

wire [3:0] sendPacketCPPIDOut;

wire sendPacketCPWEnIn;

wire sendPacketCPWEnOut;

wire [7:0] SOFCntlCntl;

wire [7:0] SOFCntlData;

wire SOFCntlGnt;

wire SOFCntlReq;

wire SOFCntlWEn;

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 [15:0] SOFTimer;

wire clrTxReq;

wire transDone;

wire transReq;

wire isoEn;

wire [1:0] transType;

wire preAmbleEnable;

wire [1:0] directLineState;

wire directLineCtrlEn;

wire [6:0] TxAddr;

wire [3:0] TxEndP;

wire [7:0] RxPktStatus;

wire [3:0] RxPID;

wire [1:0] connectStateOut;

wire resumeIntFromRxStatusMon;

wire connectionEventFromRxStatusMon;

USBHostControlBI u_USBHostControlBI

  (.address(busAddress),

  .dataIn(busDataIn),

  .dataOut(busDataOut),

  .writeEn(busWriteEn),

  .strobe_i(busStrobe_i),

  .busClk(busClk),

  .rstSyncToBusClk(rstSyncToBusClk),

  .usbClk(usbClk),

  .rstSyncToUsbClk(rstSyncToUsbClk),

  .SOFSentIntOut(SOFSentIntOut),

  .connEventIntOut(connEventIntOut),

  .resumeIntOut(resumeIntOut),

  .transDoneIntOut(transDoneIntOut),

  .TxTransTypeReg(transType),

  .TxSOFEnableReg(SOFEnable),

  .TxAddrReg(TxAddr),

  .TxEndPReg(TxEndP),

  .frameNumIn(frameNum),

  .RxPktStatusIn(RxPktStatus),

  .RxPIDIn(RxPID),

  .connectStateIn(connectStateOut),

  .SOFSentIn(SOFSent),

  .connEventIn(connectionEventFromRxStatusMon),

  .resumeIntIn(resumeIntFromRxStatusMon),

  .transDoneIn(transDone),

  .hostControlSelect(hostControlSelect),

  .clrTransReq(clrTxReq),

  .preambleEn(preAmbleEnable),

  .SOFSync(SOFSyncEn),

  .TxLineState(directLineState),

  .LineDirectControlEn(directLineCtrlEn),

  .fullSpeedPol(fullSpeedPol),

  .fullSpeedRate(fullSpeedRate),

  .transReq(transReq),

  .isoEn(isoEn),

  .SOFTimer(SOFTimer)

  );

hostcontroller u_hostController

  (.RXStatus(RxPktStatus),

  .clearTXReq(clrTxReq),

  .clk(usbClk),

  .getPacketREn(getPacketREn),

  .getPacketRdy(getPacketRdy),

  .rst(rstSyncToUsbClk),

  .sendPacketArbiterGnt(HCTxGnt),

  .sendPacketArbiterReq(HCTxReq),

  .sendPacketPID(HC_PID),

  .sendPacketRdy(sendPacketCPReadyOut),

  .sendPacketWEn(HC_SP_WEn),

  .transDone(transDone),

  .transReq(transReq),

  .transType(transType),

  .isoEn(isoEn) );

SOFController u_SOFController

  (.HCTxPortCntl(SOFCntlCntl),

  .HCTxPortData(SOFCntlData),

  .HCTxPortGnt(SOFCntlGnt),

  .HCTxPortRdy(HCTxPortRdy),

  .HCTxPortReq(SOFCntlReq),

  .HCTxPortWEn(SOFCntlWEn),

  .SOFEnable(SOFEnable),

  .SOFTimerClr(SOFTimerClr),

  .SOFTimer(SOFTimer),

  .clk(usbClk),

  .rst(rstSyncToUsbClk) );

SOFTransmit u_SOFTransmit

  (.SOFEnable(SOFEnable),

  .SOFSent(SOFSent),

  .SOFSyncEn(SOFSyncEn),

  .SOFTimerClr(SOFTimerClr),

  .SOFTimer(SOFTimer),

  .clk(usbClk),

  .rst(rstSyncToUsbClk),

  .sendPacketArbiterGnt(SOFTxGnt),

  .sendPacketArbiterReq(SOFTxReq),

  .sendPacketRdy(sendPacketCPReadyOut),

  .sendPacketWEn(SOF_SP_WEn) );

sendPacketArbiter u_sendPacketArbiter

  (.HCTxGnt(HCTxGnt),

  .HCTxReq(HCTxReq),

  .HC_PID(HC_PID),

  .HC_SP_WEn(HC_SP_WEn),

  .SOFTxGnt(SOFTxGnt),

  .SOFTxReq(SOFTxReq),

  .SOF_SP_WEn(SOF_SP_WEn),

  .clk(usbClk),

  .rst(rstSyncToUsbClk),

  .sendPacketPID(sendPacketCPPIDIn),

  .sendPacketWEnable(sendPacketCPWEnIn) );

sendPacketCheckPreamble u_sendPacketCheckPreamble

  (.sendPacketCPPID(sendPacketCPPIDIn),

  .clk(usbClk),

  .preAmbleEnable(preAmbleEnable),

  .rst(rstSyncToUsbClk),

  .sendPacketCPReady(sendPacketCPReadyOut),

  .sendPacketCPWEn(sendPacketCPWEnIn),

  .sendPacketPID(sendPacketCPPIDOut),

  .sendPacketRdy(sendPacketCPReadyIn),

  .sendPacketWEn(sendPacketCPWEnOut) );

sendPacket u_sendPacket

  (.HCTxPortCntl(sendPacketCntl),

  .HCTxPortData(sendPacketData),

  .HCTxPortGnt(sendPacketGnt),

  .HCTxPortRdy(HCTxPortRdy),

  .HCTxPortReq(sendPacketReq),

  .HCTxPortWEn(sendPacketWEn),

  .PID(sendPacketCPPIDOut),

  .TxAddr(TxAddr),

  .TxEndP(TxEndP),

  .clk(usbClk),

  .fifoData(TxFifoData),

  .fifoEmpty(TxFifoEmpty),

  .fifoReadEn(TxFifoRE),

  .frameNum(frameNum),

  .rst(rstSyncToUsbClk),

  .sendPacketRdy(sendPacketCPReadyIn),

  .sendPacketWEn(sendPacketCPWEnOut),

  .fullSpeedPolarity(fullSpeedPol) );

directControl u_directControl

  (.HCTxPortCntl(directCntlCntl),

  .HCTxPortData(directCntlData),

  .HCTxPortGnt(directCntlGnt),

  .HCTxPortRdy(HCTxPortRdy),

  .HCTxPortReq(directCntlReq),

  .HCTxPortWEn(directCntlWEn),

  .clk(usbClk),

  .directControlEn(directLineCtrlEn),

  .directControlLineState(directLineState),

  .rst(rstSyncToUsbClk) );

HCTxPortArbiter u_HCTxPortArbiter

  (.HCTxPortCntl(HCTxPortCtrl),

  .HCTxPortData(HCTxPortData),

  .HCTxPortWEnable(HCTxPortEn),

  .SOFCntlCntl(SOFCntlCntl),

  .SOFCntlData(SOFCntlData),

  .SOFCntlGnt(SOFCntlGnt),

  .SOFCntlReq(SOFCntlReq),

  .SOFCntlWEn(SOFCntlWEn),

  .clk(usbClk),

  .directCntlCntl(directCntlCntl),

  .directCntlData(directCntlData),

  .directCntlGnt(directCntlGnt),

  .directCntlReq(directCntlReq),

  .directCntlWEn(directCntlWEn),

  .rst(rstSyncToUsbClk),

  .sendPacketCntl(sendPacketCntl),

  .sendPacketData(sendPacketData),

  .sendPacketGnt(sendPacketGnt),

  .sendPacketReq(sendPacketReq),

  .sendPacketWEn(sendPacketWEn) );

getPacket u_getPacket

  (.RXDataIn(RxData),

  .RXDataValid(RxDataValid),

  .RXFifoData(RxFifoData),

  .RXFifoFull(RxFifoFull),

  .RXFifoWEn(RxFifoWE),

  .RXPacketRdy(getPacketRdy),

  .RXPktStatus(RxPktStatus),

  .RXStreamStatusIn(RxByteStatus),

  .RxPID(RxPID),

  .SIERxTimeOut(SIERxTimeOut),

  .SIERxTimeOutEn(SIERxTimeOutEn),

  .clk(usbClk),

  .getPacketEn(getPacketREn),

  .rst(rstSyncToUsbClk) );

rxStatusMonitor  u_rxStatusMonitor

  (.connectStateIn(connectStateIn),

  .connectStateOut(connectStateOut),

  .resumeDetectedIn(resumeDetectedIn),

  .connectionEventOut(connectionEventFromRxStatusMon),

  .resumeIntOut(resumeIntFromRxStatusMon),

  .clk(usbClk),

  .rst(rstSyncToUsbClk)  );

endmodule