windows-xp/Source/XPSP1/NT/drivers/wdm/usb/hcd/inc/usbhcdi.h

/*++

Copyright (c) 1999  Microsoft Corporation

Module Name:

    usb_hcdi.h

Abstract:

Environment:

    Kernel & user mode

Revision History:

    6-20-99 : created

--*/

#ifndef   __USB_HCDI_H__
#define   __USB_HCDI_H__

/*
    Power management rules for USB host controllers transitioning from 
    USB suspend to USB working.  This is what we expect for 
    S3->S0
    S1->S0

    1. The controller must not reset the USB bus or cause a disconnect or power 
       loss on any of the root USB ports.
    2. The system BIOS must not enable any type of legacy USB BIOS or otherwise 
       enable the host controller to a run state.
    3. If a PCI reset occurs in addition to rule 1 the BIOS must restore all 
       host registers to their state prior to entering low power.  Root ports 
       should NOT indicate connect or enable status changes.
    4. The controller hardware must be in a functional state -- capable of 
       driving resume and entering the run state without requiring a global
       hardware reset that otherwise would result in a USB bus reset driven on 
       the root ports.
    
*/

#define USB_BAD_PTR     ((PVOID) (-1))

/* status code returned by core functions */

typedef enum _USB_MINIPORT_STATUS {

    USBMP_STATUS_SUCCESS = 0,
    USBMP_STATUS_BUSY,
    USBMP_STATUS_NO_RESOURCES,
    USBMP_STATUS_NO_BANDWIDTH,
    USBMP_STATUS_INIT_FAILURE,
    USBMP_STATUS_FAILURE,
    USBMP_STATUS_NOT_SUPPORTED,
    USBMP_STATUS_HARDWARE_FAILURE,
    USBMP_STATUS_NTERRCODE_NOT_MAPPFED,
    
} USB_MINIPORT_STATUS;


/* define a test guids for the miniport pass-thru interface */
/* {53D3650A-A4E7-4b0f-BC1D-B76DEB40FA1E}*/
DEFINE_GUID(MINIPORT_PASSTHRU_TEST_GUID, 
0x53d3650a, 0xa4e7, 0x4b0f, 0xbc, 0x1d, 0xb7, 0x6d, 0xeb, 0x40, 0xfa, 0x1e);

/* {386289AA-02EC-486e-925E-838931877F4B}*/
DEFINE_GUID(MINIPORT_PASSTHRU_TEST_BADGUID, 
0x386289aa, 0x2ec, 0x486e, 0x92, 0x5e, 0x83, 0x89, 0x31, 0x87, 0x7f, 0x4b);
// {386289AA-02EC-486e-925E-838931877F4B}

#define TEST_FLAG(var, flag)    (((var) & (flag)) ? TRUE : FALSE)
#define CLEAR_FLAG(var, flag)   ((var) &= ~(flag))
#define SET_FLAG(var, flag)     ((var) |= (flag))

/* 
    Definition for the 32 bit physical address 
    that controller hardware understands.

    If a miniport HW structure only supports 32 bit
    physical addresses then this type is used to 
    indicate it.
    
*/   
typedef ULONG HW_32BIT_PHYSICAL_ADDRESS; 
typedef HW_32BIT_PHYSICAL_ADDRESS *PHW_32BIT_PHYSICAL_ADDRESS;

typedef PHYSICAL_ADDRESS HW_64BIT_PHYSICAL_ADDRESS; 


typedef struct _MP_HW_PHYSICAL_ADDRESS {
    union {
        HW_32BIT_PHYSICAL_ADDRESS Hw32;
        HW_64BIT_PHYSICAL_ADDRESS Hw64;
    };
} MP_HW_PHYSICAL_ADDRESS, *PMP_HW_PHYSICAL_ADDRESS;

C_ASSERT((sizeof(MP_HW_PHYSICAL_ADDRESS) == 8));

/* 
   This structure is used for pointers embedded in 
   HW structures by the miniport.  They is always sized 
   for 64 bit to limit 32/64 bit porting problems.
*/

typedef struct _MP_HW_POINTER {
        PVOID Pointer;
#ifndef _WIN64      
        ULONG PadTo8;
#endif        
} MP_HW_POINTER, *PMP_HW_POINTER;

C_ASSERT((sizeof(MP_HW_POINTER) == 8));

typedef struct _MP_HW_LIST_ENTRY {
   LIST_ENTRY List; 
#ifndef _WIN64        
   ULONG PadTo16[2];
#endif     
} MP_HW_LIST_ENTRY, *PMP_HW_LIST_ENTRY;

C_ASSERT((sizeof(MP_HW_LIST_ENTRY) == 16));


#define PENDPOINT_DATA PVOID
#define PDEVICE_DATA PVOID
#define PTRANSFER_CONTEXT PVOID

/* 
    we redifine the USBDI HCD AREA for the miniport model
*/
struct _USBPORT_DATA {
    PVOID HcdTransferContext;
    PVOID UrbSig;
    PVOID Reserved7[6];
};

#ifdef _WIN64
#define URB_SIG ((PVOID) 0xDEADF00DDEADF00D)
#else
#define URB_SIG ((PVOID) 0xDEADF00D)
#endif

//C_ASSERT(sizeof(struct _URB_HCD_AREA) ==  sizeof(struct _USBPORT_DATA))

#define IN_TRANSFER(tp)       (((tp)->TransferFlags & \
                                USBD_TRANSFER_DIRECTION_IN) ? TRUE : FALSE)

#define SHORT_TRANSFER_OK(tp) (((tp)->TransferFlags & \
                                 USBD_SHORT_TRANSFER_OK) ? TRUE : FALSE)
                                
/*
Common transfer request parameter definition, all transfer
requests passed to the miniport will be mapped to this
format.  The miniport will/can use this structure to
reference fields that are common to all transfers
as well as fields specific to isochronous and
control transfers.
*/

#define MPTX_SPLIT_TRANSFER             0x00000001

typedef struct _TRANSFER_PARAMETERS {

    /* identical to URB field */
    ULONG TransferFlags;
    /* identical to URB field */
    ULONG TransferBufferLength;
    /* uniquely identifies a transfer set */ 
    ULONG SequenceNumber;
    /* miniport special handling requirements */
    ULONG MiniportFlags;
    /* USB frame this transfer completed in */
    ULONG FrameCompleted;
    /* setup packet for control transfers */
    UCHAR SetupPacket[8];  

} TRANSFER_PARAMETERS, *PTRANSFER_PARAMETERS;

typedef struct _MINIPORT_ISO_PACKET {
    /*
      length of this packet
    */
    ULONG Length;
    /*
       bytes transferred this packet
     */
    ULONG LengthTransferred;
    /*
       virtual frame to transmit this packet
    */
    ULONG FrameNumber;
    ULONG MicroFrameNumber;
    /*
       completion code for this packet
     */
    USBD_STATUS UsbdStatus;
    
    ULONG BufferPointerCount;
    
    /* support up to 2 sg entries per packet */
    /* max packet size for a USB 1.1 frame is ~1024 bytes*/
    
    ULONG BufferPointer0Length;
    MP_HW_PHYSICAL_ADDRESS BufferPointer0;

    ULONG BufferPointer1Length;
    MP_HW_PHYSICAL_ADDRESS BufferPointer1;

} MINIPORT_ISO_PACKET, *PMINIPORT_ISO_PACKET;


typedef struct _MINIPORT_ISO_TRANSFER {

    ULONG Sig;
    ULONG PacketCount;
    PUCHAR SystemAddress;
    MINIPORT_ISO_PACKET Packets[1];
    
} MINIPORT_ISO_TRANSFER, *PMINIPORT_ISO_TRANSFER;


/* 
    These structures are used to pass IoMapped transfer
    buffers to the miniport
*/    

//
// Page size and shift value used by the OHCI, EHCI and UHCI
// controller  usb controllers use a defined 
//
// this must always be 4k -- it is defined by the controller HW
#define USB_PAGE_SIZE       0x00001000

#define USB_PAGE_SHIFT      12L


typedef struct _TRANSFER_SG_ENTRY32 {
    MP_HW_PHYSICAL_ADDRESS LogicalAddress;
    PUCHAR SystemAddress;
    ULONG Length;
    ULONG StartOffset;
} TRANSFER_SG_ENTRY32, *PTRANSFER_SG_ENTRY32;

#define USBMP_SGFLAG_SINGLE_PHYSICAL_PAGE   0x00000001

typedef struct _TRANSFER_SG_LIST { 
    ULONG SgFlags;
    PUCHAR MdlVirtualAddress;
    PUCHAR MdlSystemAddress;
    ULONG SgCount;
    TRANSFER_SG_ENTRY32 SgEntry[1];  
} TRANSFER_SG_LIST, *PTRANSFER_SG_LIST;


/************************************************************** 
 **************************************************************
USBPORT Interface Services    

    NOTES:
        - these functions are callable at raised IRQL

        
***************************************************************    
***************************************************************/

#define USBPRTFN __stdcall

/* 
VOID
USBPORTSVC_InvalidateEndpoint(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData
    );

*/

typedef VOID
    (USBPRTFN *PPORTFN_INVALIDATE_ENDPOINT) (
        PDEVICE_DATA,
        PENDPOINT_DATA
    );

/*
PUCHAR
USBPORTSVC_MapHwPhysicalToVirtual(
    HW_32BIT_PHYSICAL_ADDRESS HwPhysicalAddress,
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData    
    )

    maps a physical address from the miniport to 
    a virtual address
*/

typedef PUCHAR
    (USBPRTFN *PPORTFN_PHYS_TO_VIRTUAL) (
        HW_32BIT_PHYSICAL_ADDRESS,
        PDEVICE_DATA,
        PENDPOINT_DATA   
    );

/* 
VOID
USBPORTSVC_CompleteTransfer(
    PDEVICE_DATA DeviceData
    PDEVICE_DATA EndpointData,
    PTRANSFER_PARAMETERS TransferParameters,
    USBD_STATUS UsbdStatus,
    ULONG BytesTransferred
    );

    Called by miniport to complete an async transfer request
*/

typedef VOID
    (USBPRTFN *PPORTFN_COMPLETE_TRANSFER) (
        PDEVICE_DATA,
        PENDPOINT_DATA,
        PTRANSFER_PARAMETERS,
        USBD_STATUS,
        ULONG
    );

/* 
VOID
USBPORTSVC_CompleteIsoTransfer(
    PDEVICE_DATA DeviceData
    PDEVICE_DATA EndpointData,
    PTRANSFER_PARAMETERS TransferParameters,
    PMINIPORT_ISO_TRANSFER IsoTransfer
    );

    Called by miniport to complete an iso transfer request
*/

typedef VOID
    (USBPRTFN *PPORTFN_COMPLETE_ISO_TRANSFER) (
        PDEVICE_DATA,
        PENDPOINT_DATA,
        PTRANSFER_PARAMETERS,
        PMINIPORT_ISO_TRANSFER
    );
    

/* ROOT HUB functions */


/* 
VOID
USBPORTSVC_InvalidateRootHub(
    PDEVICE_DATA DeviceData
    );

    Called by the miniport to indicate the root hub
    needs attention
    
*/

typedef VOID
    (USBPRTFN *PPORTFN_INVALIDATE_ROOTHUB) (
        PDEVICE_DATA
    );


/* Debug functions */

/* 
VOID
USBPORTSVC_DbgPrint(
    PDEVICE_DATA DeviceData,
    ULONG Level,
    PCH Format,
    PVOID Arg0,
    PVOID Arg1,
    PVOID Arg2,
    PVOID Arg3,
    PVOID Arg4,
    PVOID Arg5
    );

    Called by miniport to print a message to the debugger
    the message is printed if the var USBPORT_DEBUG_TRACE_LEVEL 
    is >= level.
*/

typedef VOID
    (USBPRTFN *PPORTFN_DBGPRINT) (
        PDEVICE_DATA,
        ULONG,
        PCH,
        int, 
        int,
        int,
        int,
        int,
        int
    );

/* 
VOID
USBPORTSVC_TestDebugBreak(
    PDEVICE_DATA DeviceData
    );

   Triggers a break in the debugger in the registry key
   debugbreakOn is set.  These breakpoins are useful for
   debugging hardware/client software problems
 
*/

typedef VOID
    (USBPRTFN *PPORTFN_TEST_DEBUG_BREAK) (
        PDEVICE_DATA
    );

/* 
VOID
USBPORTSVC_AssertFailure(
    PDEVICE_DATA DeviceData
    PVOID FailedAssertion,
    PVOID FileName,
    ULONG LineNumber,
    PCHAR Message
    );

 
*/

typedef VOID
    (USBPRTFN *PPORTFN_ASSERT_FAILURE) (
        PDEVICE_DATA,
        PVOID,
        PVOID,
        ULONG,
        PCHAR
    );

/* 
VOID
USBPORTSVC_LogEntry(
    PDEVICE_DATA DeviceData,
    
    );

 
*/

/* Miniport LOG MASKS */
#define G 0x10000001    /* always log */

typedef VOID
    (USBPRTFN *PPORTFN_LOGENTRY) (
        PDEVICE_DATA,
        ULONG,
        ULONG, 
        ULONG_PTR, 
        ULONG_PTR, 
        ULONG_PTR
    );    

/* other functions */

/*
USB_MINIPORT_STATUS 
USBPORTSVC_ReadWriteConfigSpace(
    PDEVICE_DATA DeviceData,
    BOOLEAN Read,
    PVOID Buffer,
    ULONG Offset,
    ULONG Length
    )
    
    reads a registry key value from the branch associated 
    with the PDO for the host controller.

    this API reads from either the software or hardware 
    branch

    this function cannot be called at raised IRQL
*/

typedef USB_MINIPORT_STATUS
    (USBPRTFN *PPORTFN_READWRITE_CONFIG_SPACE) (
        PDEVICE_DATA,
        BOOLEAN,
        PVOID,
        ULONG,
        ULONG
    );

/*
VOID 
USBPORTSVC_Wait(
    PDEVICE_DATA DeviceData,
    ULONG MillisecondsToWait
    )

    Execute a syncronous wait for a specified number of 
    milliseconds        
*/

typedef VOID
    (USBPRTFN *PPORTFN_WAIT) (
        PDEVICE_DATA,
        ULONG
    );

/*
VOID 
USBPORTSVC_BugCheck(
    PDEVICE_DATA DeviceData
    )

*/

typedef VOID
    (USBPRTFN *PPORTFN_BUGCHECK) (
        PDEVICE_DATA
    );
    

/*
VOID 
USBPORTSVC_NotifyDoubleBuffer(
    PDEVICE_DATA DeviceData
    PTRANSFER_PARAMETERS TransferParameters,
    PVOID SystemAddress,
    ULONG Length
    )

*/

typedef VOID
    (USBPRTFN *PPORTFN_NOTIFY_DOUBLE_BUFFER) (
        PDEVICE_DATA, 
        PTRANSFER_PARAMETERS,
        PVOID,
        ULONG
    );


/*
USB_MINIPORT_STATUS 
USBPORTSVC_GetMiniportRegistryKeyValue(
    PDEVICE_DATA DeviceData,
    BOOLEAN SoftwareBranch,
    PWCHAR KeyNameString,
    ULONG KeyNameStringLength,
    PVOID Data,
    ULONG DataLength
    )
    
    reads a registry key value from the branch associated 
    with the PDO for the host controller.

    this API reads from either the software or hardware 
    branch

    this function cannot be called at raised IRQL
*/

typedef USB_MINIPORT_STATUS
    (USBPRTFN *PPORTFN_GET_MINIPORT_REGESTRY_KEY_VALUE) (
        PDEVICE_DATA,
        BOOLEAN,
        PWCHAR,
        ULONG,
        PVOID,
        ULONG
    );


/*
VOID 
USBPORTSVC_RequestAsyncCallback(
    PDEVICE_DATA DeviceData,
    ULONG MilliSecondInterval,    
    PVOID Context,
    ULONG ContextLength,
    PMPFN_MINIPORT_CALLBACK Callback    
    )

    request an async callback when the millisecond interval
    has elapsed.

    The context field is copied ant the miniport is called back
    with the copy so it is safe for the miniport to use a stack 
    variable as context.
*/

/*++
    CallBack Definition for async notifiaction service
--*/

typedef VOID
    (__stdcall *PMINIPORT_CALLBACK) (
        PDEVICE_DATA,
        PVOID
    );         

typedef VOID
    (USBPRTFN *PPORTFN_REQUEST_ASYNC_CALLBACK) (
        PDEVICE_DATA,
        ULONG,
        PVOID,
        ULONG,
        PMINIPORT_CALLBACK    
    );

/*
VOID 
USBPORTSVC_InvalidateController(
    PDEVICE_DATA DeviceData,
    USB_CONTROLLER_STATE ControllerState
    )

*/

typedef enum _USB_CONTROLLER_STATE {

    UsbMpControllerPowerFault,
    UsbMpControllerNeedsHwReset,
    UsbMpControllerRemoved,
    UsbMpSimulateInterrupt
    
} USB_CONTROLLER_STATE;


typedef VOID
    (__stdcall *PPORTFN_INVALIDATE_CONTROLLER) (
        PDEVICE_DATA,
        USB_CONTROLLER_STATE
    );  

/************************************************************** 
 **************************************************************
USB MINIPORT interface functions

    prototypes for functions called by the USB port driver
    (usbport)
***************************************************************    
***************************************************************/

#define USBMPFN __stdcall

/***************************************************************
CORE Functions

    The following core functions are serialized as a group they 
    are assocaited with processing data transfers on the bus

 
   MINIPORT_SubmitTransfer
   MINIPORT_SubmitIsoTransfer
   MINIPORT_AbortTransfer
   MINIPORT_OpenEndpoint
   MINIPORT_RebalanceEndpoint
   MINIPORT_QueryEndpointRequirements
   MINIPORT_CloseEndpoint
   MINIPORT_SetEndpointState
   MINIPORT_GetEndpointState
   MINIPORT_PokeEndpoint
   MINIPORT_PollEndpoint
   MINIPORT_Get32bitFrameNumber
   MINIPORT_InterruptNextSOF
   MINIPORT_PollController
   
    
****************************************************************/

/*++
    MINIPORT_SubmitTransfer
    
    program a USB transfer, iso, bulk, interrupt or control to the hardware.  
    if no resources are avaiable then return USBMP_STATUS_BUSY.

    if the transfer is successfully queued to the HW then return 
        USBMP_STATUS_SUCCESS
    

    NOTES:
        -At the time this routine is called the transfer buffer has been 
         mapped (ie no need to call IoMapTransfer).

    URB_FUNCTION_CONTROL_TRANSFER                
    URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER      

    IRQL = DISPATCH_LEVEL

USB_MINIPORT_STATUS
MINIPORT_SubmitTransfer(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData,
    PTRANSFER_PARAMETERS TransferParameters,
    PTRANSFER_CONTEXT TransferContext,
    PTRANSFER_SG_LIST TransferSGList
    );
--*/

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_SUBMIT_TRANSFER) (
        PDEVICE_DATA, 
        PENDPOINT_DATA,
        PTRANSFER_PARAMETERS,
        PTRANSFER_CONTEXT,
        PTRANSFER_SG_LIST
    );

/*++
    MINIPORT_SubmitTransfer
    
    program a USB transfer, iso, bulk, interrupt or control to the hardware.  
    if no resources are avaiable then return USBMP_STATUS_BUSY.

    if the transfer is successfully queued to the HW then return 
        USBMP_STATUS_SUCCESS
    

    NOTES:
        -At the time this routine is called the transfer buffer has been 
         mapped (ie no need to call IoMapTransfer).

    IRQL = DISPATCH_LEVEL

USB_MINIPORT_STATUS
MINIPORT_SubmitIsoTransfer(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData,
    PTRANSFER_PARAMETERS TransferParameters,
    PTRANSFER_CONTEXT TransferContext,
    PMINIPORT_ISO_TRANSFER IsoTransfer
    );
--*/

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_SUBMIT_ISO_TRANSFER) (
        PDEVICE_DATA, 
        PENDPOINT_DATA,
        PTRANSFER_PARAMETERS,
        PTRANSFER_CONTEXT,
        PMINIPORT_ISO_TRANSFER
    );
    

/*++
    MINIPORT_AbortTransfer

    abort a specfic transfer that has been started, this will only be 
    called if the endpoint is in the ENDPOINT_PAUSED state.

    this call is NOT failable and the HW must have no reference to 
    the transfer on return.

    The miniport does not indicate completion.

    IRQL = DISPATCH_LEVEL

VOID
MINIPORT_AbortTransfer(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData,
    PTRANSFER_CONTEXT TransferContext,
    PULONG BytesTransferred
    );    
--*/

typedef VOID
    (USBMPFN *PMPFN_ABORT_TRANSFER) (
        PDEVICE_DATA, 
        PENDPOINT_DATA,
        PTRANSFER_CONTEXT,
        PULONG 
    );

/*++
    MINIPORT_OpenEndpoint

    open an endpoint.
    
    PENDPOINT_DATA is the minport private endpoint
    context
    
    PENDPOINT_PARAMETERS describes the endpoint to open 
    for the miniport -- this information is READ_ONLY

    on return the endpoint should be in the PAUSE state

    IRQL = DISPATCH_LEVEL

USB_MINIPORT_STATUS
MINIPORT_OpenEndpoint(
    PDEVICE_DATA DeviceData,
    PENDPOINT_PARAMETERS EndpointParameters,
    PENDPOINT_DATA EndpointData
    );    
--*/

typedef enum _ENDPOINT_TRANSFER_TYPE {
    Isochronous = 0,
    Control,
    Bulk,
    Interrupt
} ENDPOINT_TRANSFER_TYPE;


typedef enum _ENDPOINT_TRANSFER_DIRECTION {
    In = 0,
    Out
} ENDPOINT_TRANSFER_DIRECTION;

typedef enum _DEVICE_SPEED {
    LowSpeed = 0,
    FullSpeed,
    HighSpeed
} DEVICE_SPEED;


/* these values are input by the port driver */

/*
    Bandwidth Mamagement:

    All bandwidth allocation is managed by the port driver.  The 
    bandwidth consumed by an endpoint is passed to the miniport 
    but this is purely informational.

    Load balancing for interrupt endpoints is handled by passing
    the miniport the appropriate schedule offset for an interrupt
    endpoint.

    interrupt endpoints may occupy different locations in the 
    schedule dpeneding on the period. The consume bandwidth only
    for locations they occupy.  This is the 'ScheduleOffset'.

    USBPORT will choose an appropriate schedule offset and pass this
    to the miniport for the open.

    period      offsets
       1          0
       2          0,1
       4          0,..3
       8          0,..7
       16         0,..15
       32         0,..31
        
*/

typedef struct _ENDPOINT_PARAMETERS {
    USHORT DeviceAddress;
    USHORT EndpointAddress;
    USHORT MaxPacketSize;
    // adjusted interrupt period
    // will be one of : 128, 64, 32, 16, 8, 4, 2, 1
    UCHAR Period;
    UCHAR MaxPeriod;
    // bandwidth required in bits/ms 
    // ie the reserved bw that this endpont will
    // consume
    DEVICE_SPEED DeviceSpeed;
    ULONG Bandwidth;
    ULONG ScheduleOffset;
    ENDPOINT_TRANSFER_TYPE TransferType;
    ENDPOINT_TRANSFER_DIRECTION TransferDirection;
    PUCHAR CommonBufferVa;
    HW_32BIT_PHYSICAL_ADDRESS CommonBufferPhys; 
    ULONG CommonBufferBytes;
    // endpoint parm flags
    ULONG EndpointFlags;
    ULONG MaxTransferSize;
    // usb 2.0 parameters
    // device address of the hub (TT) for this ep
    USHORT TtDeviceAddress;
    // port number (really TT number) of the TT for 
    // this device
    USHORT TtPortNumber;

    UCHAR InterruptScheduleMask;
    UCHAR SplitCompletionMask;
    UCHAR TransactionsPerMicroframe;
    UCHAR Pad;
    USHORT MuxPacketSize;
    ULONG Ordinal;
    
} ENDPOINT_PARAMETERS, *PENDPOINT_PARAMETERS;

/* these are returned by the miniport */
typedef struct _ENDPOINT_REQUIREMENTS {
    /* size of the common buffer the
      miniport will need to service 
      this endpoint */
    ULONG MinCommonBufferBytes; 

    /* 
       the largest single transfer this endpoint
       can handle. If a client driver passes 
       down a larger transfer usbport will break
       it in to multiple requests.

       MinCommonBufferBytes/sizeof(TD) should be 
       enough TDs to statify at least one request
       of MaximumTransferSize.

       Ideally it should be able to handle two -- this 
       will ensure that the bus does not go idle.
       
    */
       
    ULONG MaximumTransferSize;
    
} ENDPOINT_REQUIREMENTS, *PENDPOINT_REQUIREMENTS;


// **
// EP_PARM_FLAG_
// Enpoint Parameter flags, describe required endpoint
// behaviors including possible optimaizations

//#define EP_PARM_FLAG_         0x00000002    

//
// EP_PARM_FLAG_NOHALT - the endpoint should not halt on the 
//      host side as a result of a bus error
//
#define EP_PARM_FLAG_NOHALT           0x00000004  

// optimization flags
#define EP_PARM_ISO_BUFFERING         0x00000008

// 


typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_OPEN_ENDPOINT) (
        PDEVICE_DATA, 
        PENDPOINT_PARAMETERS,
         PENDPOINT_DATA 
    );

/*++
    MINIPORT_PokeEndpoint

    poke an endpoint.
    use to change the address of an endpoint without 
    removing it from the schedule.

    **This API is used exclusively to change the endpoint 
    address.
    
    PENDPOINT_DATA is the minport private endpoint
    context
    
    PENDPOINT_PARAMETERS describes the endpoint to open 
    for the miniport -- this information is READ_ONLY

    IRQL = DISPATCH_LEVEL

USB_MINIPORT_STATUS
MINIPORT_PokeEndpoint(
    PDEVICE_DATA DeviceData,
    PENDPOINT_PARAMETERS EndpointParameters,
     PENDPOINT_DATA EndpointData
    );    
--*/

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_POKE_ENDPOINT) (
        PDEVICE_DATA, 
        PENDPOINT_PARAMETERS,
        PENDPOINT_DATA 
    );    


/*++
    MINIPORT_RebalanceEndpoint

    PENDPOINT_DATA is the minport private endpoint
    context
    
    PENDPOINT_PARAMETERS describes the endpoint to open 
    for the miniport -- this information is READ_ONLY

    IRQL = DISPATCH_LEVEL

VOID
MINIPORT_RebalanceEndpoint(
    PDEVICE_DATA DeviceData,
    PENDPOINT_PARAMETERS EndpointParameters,
    PENDPOINT_DATA EndpointData
    );    
--*/

typedef VOID
    (USBMPFN *PMPFN_REBALANCE_ENDPOINT) (
        PDEVICE_DATA, 
        PENDPOINT_PARAMETERS,
        PENDPOINT_DATA 
    );      

/*++
    MINIPORT_QueryEndpointRequirements

    PENDPOINT_DATA is the minport private endpoint
    context
    
    IRQL = DISPATCH_LEVEL
    
VOID
MINIPORT_QueryEndpointRequirements(
    PDEVICE_DATA DeviceData,
    PENDPOINT_PARAMETERS EndpointParameters,
     PENDPOINT_REQUIREMENTS EndpointRequirements
    );   


Notes on Maximum Transfer Sizes:

Control:
    The miniport can assume that no Control transfer buffer passed to 
    it will be larger than EndpointParameters.MAXTRANSFERSIZE.  The miniport 
    should request enough locked memory (common buffer) to support at least 
    one control transfer.

    TBD - The miniport may optionally request that the controller transfer 
    be limmited to a smaller value by setting 
    EndpointRequirements.MAXTRANSFERSIZE.  In this case the miniport must 
    support fragmented control tranfsers.  
    
    EndpointParameters.MAXTRANSFERSIZE can never be larger than 64k by spec.

Interrupt:
    The miniport can indicate the max transfer size for each interrupt
    transfer it can handle in EndpointRequirements.MAXTRANSFERSIZE.
    
    Assume that no transfer buffer will be larger than the this size.
    EndpointParameters.MAXTRANSFERSIZE is the default value. The miniport
    should allocate resources to handle at least two transfers of this size.

Bulk:
    The miniport can indicate the max transfer size for each bulk transfer 
    it can handle in EndpointRequirements.MAXTRANSFERSIZE.  No transfer will 
    be passed in larger than this value. The miniport must request enough 
    resources to program at least two transfers of this size into the hardware. 
    MAXTRANSFERSIZE must be at least 4k.
    
    EndpointParameters.MAXTRANSFERSIZE is the default value.

Basic Iso:
    Miniport may specify an EndpointRequirements.MAXTRANSFERSIZE size 
    but it must also be able to always handle at least two transfers of 
    MAX_ISO_PACKETS_PER_TRANSFER.
        

--*/

/*
    Historical Note:

    The orignal USBD driver shipped in Win98 thru Win2k limits iso requests
    to 255 packets so we are safe to set this limit at 256.

    This is 256ms for full speed and 32 ms for High speed on the hardware 
    per request which is plenty.
    
*/

#define MAX_ISO_PACKETS_PER_TRANSFER    256

typedef VOID
    (USBMPFN *PMPFN_QENDPOINT_REQUIREMENTS) (
        PDEVICE_DATA, 
        PENDPOINT_PARAMETERS,
         PENDPOINT_REQUIREMENTS
    );

/*++
    MINIPORT_PollEndpoint

    Poll the endpoint for done transfers or other changes

    PENDPOINT_DATA is the minport private endpoint
    context
    
    IRQL = DISPATCH_LEVEL
    
VOID
MINIPORT_PollEndpoint(
    PDEVICE_DATA DeviceData,
     PENDPOINT_DATA EndpointData
    );       
--*/

typedef VOID
    (USBMPFN *PMPFN_POLL_ENDPOINT) (
        PDEVICE_DATA, 
        PENDPOINT_DATA
    );    

/*
    MINIPORT_CloseEndpoint

    close an endpoint, PENDPOINT_DATA is the minport private endpoint
    context

    free any resources allocated for the endpoint other than BW
    
    IRQL = DISPATCH_LEVEL

VOID
MINIPORT_CloseEndpoint(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData
    );    
*/

typedef VOID
    (USBMPFN *PMPFN_CLOSE_ENDPOINT) (
        PDEVICE_DATA, 
        PENDPOINT_DATA
    );

/*
    MINIPORT_SetEndpointState

    Set an endpoint to one of our defined transfer states, the endpoint 
    need not be in the state when the miniport returns.
    
    There is an assumption here that the enpoint will reach the 
    desired state on the next SOF, the port will keep track of 
    this and assume that the state transition has occurred after 
    one ms frame has passed.

    These are software state, changes can only be intiated by a 
    request thru the MINIPORT_SetEndpointState function. endpoints
    cannot transition on their own.

    ENDPOINT_IDLE
        The endpoint has no active transfer, set this endpoint to a 
        state that generates minimal activity on the contoller (ie 
        remove it from the schedule,set skip bit etc)

    ENDPOINT_PAUSE 
        temporarily stop any bus activity associated with the endpoint,
        this is a prelude to receiving an abortTransfer.

    ENDPOINT_ACTIVE 
        enable processing of the enpoint -- ie it is in the schedule and
        ready for action

    ENDPOINT_REMOVE 
        the endpoint has been removed from the HW schedule


    IRQL = DISPATCH_LEVEL

VOID
MINIPORT_SetEndpointState(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData
    MP_ENDPOINT_STATE
    );    

MP_ENDPOINT_STATE
MINIPORT_GetEndpointState(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndpointData
    );     
*/
typedef enum _MP_ENDPOINT_STATE {
    ENDPOINT_TRANSITION = 0,
    ENDPOINT_IDLE,
    ENDPOINT_PAUSE, 
    ENDPOINT_ACTIVE, 
    ENDPOINT_REMOVE,
    ENDPOINT_CLOSED
} MP_ENDPOINT_STATE;    

typedef VOID
    (USBMPFN *PMPFN_SET_ENDPOINT_STATE) (
        PDEVICE_DATA, 
        PENDPOINT_DATA,
        MP_ENDPOINT_STATE
    );
    
typedef MP_ENDPOINT_STATE
    (USBMPFN *PMPFN_GET_ENDPOINT_STATE) (
        PDEVICE_DATA, 
        PENDPOINT_DATA
    );

/*++
    MINIPORT_SetEndpointDataToggle

    resets the data toggle for an endpoint
    
    IRQL = DISPATCH_LEVEL
    
VOID
MINIPORT_SetEndpointDataToggle(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndointData,
    ULONG Toggle
    );       
--*/

typedef VOID
    (USBMPFN *PMPFN_SET_ENDPOINT_DATA_TOGGLE) (
        PDEVICE_DATA,
        PENDPOINT_DATA,
        ULONG            
    );          

/*++
    MINIPORT_GetEndpointStatus
    
    returns the status of an endpoint ie HALTED 
    the status of the endpoint is controlled by the HW.
        
    IRQL = DISPATCH_LEVEL
    
MP_ENDPOINT_STATUS
MINIPORT_GetEndpointStatus(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndointData
    );       

VOID
MINIPORT_SetEndpointStatus(
    PDEVICE_DATA DeviceData,
    PENDPOINT_DATA EndointData,
    MP_ENDPOINT_STATUS EpStatus
    );       
    
--*/

typedef enum _MP_ENDPOINT_STATUS {
    ENDPOINT_STATUS_RUN = 0,
    ENDPOINT_STATUS_HALT
} MP_ENDPOINT_STATUS;    


typedef MP_ENDPOINT_STATUS
    (USBMPFN *PMPFN_GET_ENDPOINT_STATUS) (
        PDEVICE_DATA,
        PENDPOINT_DATA
    );          
    
typedef VOID
    (USBMPFN *PMPFN_SET_ENDPOINT_STATUS) (
        PDEVICE_DATA,
        PENDPOINT_DATA,
        MP_ENDPOINT_STATUS
    );          

/*++
    MINIPORT_Get32BitFrameNumber

    returns the 32 bit frame number maintained by the HCD

    IRQL = DISPATCH_LEVEL
    
ULONG
MINIPORT_Get32BitFrameNumber(
    PDEVICE_DATA DeviceData
    );       
--*/

typedef ULONG
    (USBMPFN *PMPFN_GET_32BIT_FRAME_NUMBER) (
        PDEVICE_DATA 
    );        

/*++
    MINIPORT_InterruptNextSOF

    requests an interrupt at the next SOF interval

    IRQL = DISPATCH_LEVEL
    
VOID
MINIPORT_InterruptNextSOF(
    PDEVICE_DATA DeviceData
    );       
--*/

typedef VOID
    (USBMPFN *PMPFN_INTERRUPT_NEXT_SOF) (
        PDEVICE_DATA 
    );        
    
/*
    MINIPORT_PollController    

    Optional Poll routine for miniport this function will
    be called at the MiniportPollInterval specficeid in 
    the registration packet.
    
    Specifying a vlue of zero disables polling of the 
    controller.

    IRQL = ANY

VOID
MINIPORT_PollController (
    PDEVICE_DATA DeviceData
    );
*/

typedef VOID
    (USBMPFN *PMPFN_POLL_CONTROLLER) (
        PDEVICE_DATA 
    );  
    
/***************************************************************
PNP/POWER Functions

    The following core pnp functions are serialized as a group
    
****************************************************************/

/*
    MINIPORT_CheckController    

    Entry point called by usbport periodically to check the hardware 
    state, this function is not serialized. Typically this is used to 
    detect surprise removal of the hardware. 

    IRQL = ANY

VOID
MINIPORT_CheckController(
    PDEVICE_DATA DeviceData
    );
*/

typedef VOID
    (USBMPFN *PMPFN_CHECK_CONTROLLER) (
        PDEVICE_DATA 
    );  

/*
    MINIPORT_StartController   

    Initialize Hardware, allocate memory etc.

    on return (STATUS_SUCCESS) the device is considered started and 
    powered and must handle ALL CORE functions.

    the miniport should disable any BIOS if present

    the last thing the driver should do before returning is enable 
    interrupt generation by the controller

    HcParameters are filled in by the miniport
    
    IRQL = PASSIVE_LEVEL


USB_MINIPORT_STATUS
MINIPORT_StartController(
    PDEVICE_DATA DeviceData,
    PHC_RESOURCES HcResources
    );
*/    

typedef struct _HC_RESOURCES {

/* values for Flags field */
#define HCR_IO_REGS     0x0000001     
#define HCR_IRQ         0x0000002
#define HCR_MEM_REGS    0x0000004

    ULONG Flags;
    USB_CONTROLLER_FLAVOR ControllerFlavor;
    
    /* interrupt */
    ULONG InterruptVector;
    KIRQL InterruptLevel;
    KAFFINITY Affinity;
    BOOLEAN ShareIRQ;
    KINTERRUPT_MODE InterruptMode;
    PKINTERRUPT InterruptObject;  

    /* io ports */
    /* memory mapped */
    PVOID DeviceRegisters; 
    ULONG DeviceRegistersLength;

    PUCHAR CommonBufferVa;
    HW_32BIT_PHYSICAL_ADDRESS CommonBufferPhys; 

    /* BIOS detected
        filled in by miniport
    */
    BOOLEAN DetectedLegacyBIOS;
    BOOLEAN Restart;
    
} HC_RESOURCES, *PHC_RESOURCES;


typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_START_CONTROLLER) (
        PDEVICE_DATA, 
        PHC_RESOURCES
    );
    

/*
    MINIPORT_StopController   

    disconnect interrupt, free memory etc.

    on return (non Failable) the device is considered stopped and 
    powered down and will no longer receicve calls to CORE functions.

    NOTES: 
        - The miniport will only receive a stop request if it was 
          successfuly started.
        - Miniport should disable all interrupts from the hardware.          
        - if Hardware Present is FALSE the miniport should not access 
          memory registers or ioports.
          
    
    IRQL = PASSIVE_LEVEL


VOID
MINIPORT StopController(
    PDEVICE_DATA DeviceData,
    BOOLEAN HardwarePresent
    );
*/    

typedef VOID
    (USBMPFN *PMPFN_STOP_CONTROLLER) (
        PDEVICE_DATA, 
        BOOLEAN 
    );


/*
    MINIPORT_ResetController   

    Reset the host controller hardware

    This function is serialized with the ISR and DPC and holds
    the core function lock in order to provide a safe environment 
    or the miniport to reset the host hardware.
    

VOID
MINIPORT ResetController(
    PDEVICE_DATA DeviceData
    );
*/    

typedef VOID
    (USBMPFN *PMPFN_RESET_CONTROLLER) (
        PDEVICE_DATA 
    );


/*
    MINIPORT_SuspendController   

    IRQL = PASSIVE_LEVEL


VOID
MINIPORT SuspendController(
    PDEVICE_DATA DeviceData
    );
*/    

typedef VOID
    (USBMPFN *PMPFN_SUSPEND_CONTROLLER) (
        PDEVICE_DATA 
    );

/*
    MINIPORT_ResumeController   

    Attempts to resume HC HW from the suspend state.  The miniport
    may fail this in the event the controller has been hosed by the
    BIOS.  In that even the port driver may attempt to power cycle.

    IRQL = PASSIVE_LEVEL


VOID
MINIPORT ResumeController(
    PDEVICE_DATA DeviceData
    );
*/    

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_RESUME_CONTROLLER) (
        PDEVICE_DATA 
    );    

/*
    MINIPORT_FlushInterrupts   

    Flush Interrupts on the USB the controller HW
    
    IRQL = PASSIVE_LEVEL


VOID
MINIPORT FlushInterrupts(
    PDEVICE_DATA DeviceData
    );
*/    

typedef VOID
    (USBMPFN *PMPFN_FLUSH_INTERRUPTS) (
        PDEVICE_DATA 
    );   

/*
    MINIPORT_TakePortControl   

    Pre start controller initialization
    
    IRQL = PASSIVE_LEVEL


VOID
MINIPORT_TakePortControl(
    PDEVICE_DATA DeviceData
    );
*/    

typedef VOID
    (USBMPFN *PMPFN_TAKE_PORT_CONTROL) (
        PDEVICE_DATA 
    );            

/*
    MINIPORT_EnableInterrupts   

    Enable Interrupts by the USB the controller HW
    
    IRQL = PASSIVE_LEVEL


VOID
MINIPORT EnableInterrupts(
    PDEVICE_DATA DeviceData
    );
*/    

typedef VOID
    (USBMPFN *PMPFN_ENABLE_INTERRUPTS) (
        PDEVICE_DATA 
    );    

/*
    MINIPORT_DisableInterrupts   

    Disable Interrupts by the USB the controller HW

    On return from this function the controller is expected to 
    not generate ANY interrupts. 
    Also the controller should ack all interrupts since on return
    from this routine the ISR & ISRDPC will no longer be called.

    
    IRQL = This function is synchronized with the ISR


VOID
MINIPORT DisableInterrupts(
    PDEVICE_DATA DeviceData
    );
*/    

typedef VOID
    (USBMPFN *PMPFN_DISABLE_INTERRUPTS) (
        PDEVICE_DATA 
    );        


/***************************************************************
ROOT HUB Functions

MINIPORT_RH_GetRootHubData
MINIPORT_RH_DisableIrq
MINIPORT_RH_EnableIrq

MINIPORT_RH_GetStatus
MINIPORT_RH_GetPortStatus 
MINIPORT_RH_GetHubStatus 

Port Functions, all use PMPFN_RH_PORT_FUNCTION
MINIPORT_RH_SetFeaturePortReset
MINIPORT_RH_SetFeaturePortSuspend
MINIPORT_RH_SetFeaturePortPower
MINIPORT_RH_SetFeaturePortEnable

MINIPORT_RH_ClearFeaturePortEnable
MINIPORT_RH_ClearFeaturePortSuspend
MINIPORT_RH_ClearFeaturePortPower

MINIPORT_RH_ClearFeaturePortConnectChange
MINIPORT_RH_ClearFeaturePortResetChange
MINIPORT_RH_ClearFeaturePortEnableChange
MINIPORT_RH_ClearFeaturePortSuspendChange
MINIPORT_RH_ClearFeaturePortOvercurrentChange

****************************************************************/

/* 
    root hub port status data as defined in the Hub Class 
    section of the CORE (USB 1.1) spec.
*/

typedef struct _RH_PORT_STATUS {

    union {
        struct {
        
            /* Status bits 0.. 15 */
            
            ULONG Connected:1;
            ULONG Enabled:1;
            ULONG Suspended:1;
            ULONG OverCurrent:1;
            ULONG Reset:1;        
            ULONG Reserved0:3;
            ULONG PowerOn:1;
            ULONG LowSpeed:1;
            ULONG HighSpeed:1;
            ULONG Reserved1:4;
            /* borrowed from reserved bits to indicate 
                port disposition */
            ULONG OwnedByCC:1; 
        
            /* Change bits 16..31 */
        
            ULONG ConnectChange:1;
            ULONG EnableChange:1;
            ULONG SuspendChange:1;
            ULONG OverCurrentChange:1;
            ULONG ResetChange:1;
            ULONG Reserved2:11;
            
        };
        ULONG ul;
   }; 
} RH_PORT_STATUS, *PRH_PORT_STATUS;

C_ASSERT(sizeof(RH_PORT_STATUS) == sizeof(ULONG));

typedef struct _RH_HUB_STATUS {

    /* Status bits 0.. 15 */
    union {
        struct {   
            ULONG LocalPowerLost:1;
            ULONG OverCurrent:1;
            ULONG Reserved:14;
        
            /* Change bits 16..31 */
        
            ULONG LocalPowerChange:1;
            ULONG OverCurrentChange:1;
            ULONG Reserved2:14;
        };
        ULONG ul;
    };    
} RH_HUB_STATUS, *PRH_HUB_STATUS;

C_ASSERT(sizeof(RH_HUB_STATUS) == sizeof(ULONG));

/*
   Hub Charateristics as defined 
   in 11.11.2 of the USB core spec.
*/   
/* PowerSwitchType */
#define USBPORT_RH_POWER_SWITCH_GANG    0    
#define USBPORT_RH_POWER_SWITCH_PORT    1

typedef union _RH_HUB_CHARATERISTICS {

    USHORT us;
    struct {
        /* 
            00 = Gang switched
            01 = port power switched

            1x = 1.0 hubs with no power 
                 switching
        */
        USHORT PowerSwitchType:2;       /* 0-1      */
        USHORT CompoundDevice:1;        /* 2        */
        USHORT OverCurrentProtection:2; /* 3-4      */
        USHORT Reserved:11;             /* 5-15     */
    }; 

} RH_HUB_CHARATERISTICS, *PRH_HUB_CHARATERISTICS;

C_ASSERT(sizeof(RH_HUB_CHARATERISTICS) == sizeof(USHORT));


typedef struct _ROOTHUB_DATA {

    ULONG NumberOfPorts;         // number of ports on this hub
    RH_HUB_CHARATERISTICS HubCharacteristics;  
    USHORT pad;
    ULONG PowerOnToPowerGood;    // port power on till power good in 2ms
    ULONG HubControlCurrent;     // max current in mA

} ROOTHUB_DATA, *PROOTHUB_DATA;



/*
    MINIPORT_RH_GetRootHubData   

    get information about the root hub, port 
    driver uses this information to emulate 
    the root hub for the miniport
    
    IRQL = PASSIVE_LEVEL


VOID
MINIPORT_RH_GetRootHubData(
    PDEVICE_DATA DeviceData,
     PROOTHUB_DATA HubData
    );
*/

typedef VOID
    (USBMPFN *PMPFN_RH_GET_ROOTHUB_DATA) (
        PDEVICE_DATA, 
        PROOTHUB_DATA
    );
    

/*
    MINIPORT_RH_GetStatus   

    Used to support the GET_STATUS command sent to the root hub device.

    may return with the following bits set in Status
    
        USB_GETSTATUS_SELF_POWERED                0x01
        USB_GETSTATUS_REMOTE_WAKEUP_ENABLED       0x02

    are we self powered?
    are we a remote wakeup source?
    
    see section 9.4.5 USB 1.1 spec
    
    
    IRQL = PASSIVE_LEVEL


USB_MINIPORT_STATUS
MINIPORT_RH_GetStatus(
    PDEVICE_DATA DeviceData
     PUSHORT Status
    );
*/

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_RH_GET_STATUS) (
        PDEVICE_DATA, 
         PUSHORT
    );

/*
    MINIPORT_RH_DisableIrq  (OPTIONAL)

    If the comntroller is capable of generating interrupts
    on root hub status changes then it must provide this 
    service to disable/enable the feature.

    IRQL = DPC_LEVEL


VOID
MINIPORT_RH_DisableIrq(
    PDEVICE_DATA DeviceData
    );
*/

typedef VOID
    (USBMPFN *PMPFN_RH_DISABLE_IRQ) (
        PDEVICE_DATA 
    );
    
/*
    MINIPORT_RH_EnableIrq   (OPTIONAL)

    IRQL = DPC_LEVEL


VOID
MINIPORT_RH_EnableIrq(
    PDEVICE_DATA DeviceData
    );
*/

typedef VOID
    (USBMPFN *PMPFN_RH_ENABLE_IRQ) (
        PDEVICE_DATA 
    );
    
/*
    MINIPORT_RH_GetPortStatus   

    Used to support the GET_STATUS hub class command sent 
    to the root hub interface for a port.

    PortNumber = 1,2, etc

    see section 11.16.2.5 of USB 1.1 spec

    IRQL = PASSIVE_LEVEL


USB_MINIPORT_STATUS
MINIPORT_RH_GetPortStatus(
    PDEVICE_DATA DeviceData,
    USHORT PortNumber,
     PRH_PORT_STATUS PortStatus
    );
*/


typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_RH_GET_PORT_STATUS) (
        PDEVICE_DATA, 
        USHORT,
        PRH_PORT_STATUS
    );


/*
    MINIPORT_RH_GetHubStatus   

    Used to support the GET_STATUS hub class command sent 
    to the root hub interface for a hub.

    IRQL = PASSIVE_LEVEL


USB_MINIPORT_STATUS
MINIPORT_RH_GetHubStatus(
    PDEVICE_DATA DeviceData,
     PRH_HUB_STATUS HubStatus
    );
*/


typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_RH_GET_HUB_STATUS) (
        PDEVICE_DATA, 
        PRH_HUB_STATUS
    );


/*
    MINIPORT_RH_PORT_FUNCTION   

    format for root hub services that act on ports.

    PortNumber = 1,2, etc
     
    IRQL = PASSIVE_LEVEL


USB_MINIPORT_STATUS
MINIPORT_RH_PORT_FUNCTION(
    PDEVICE_DATA DeviceData,
    USHORT PortNumber
    );

    The following services use the MINIPORT_RH_PORT_FUNCTION
    format
    
    MINIPORT_RH_SetFeaturePortReset   

    MINIPORT_RH_SetFeaturePortPower   

    MINIPORT_RH_SetFeaturePortEnable  

    MINIPORT_RH_SetFeaturePortSuspend  
    
    MINIPORT_RH_ClearFeaturePortEnable   

    MINIPORT_RH_ClearFeaturePortPower   
    
    MINIPORT_RH_ClearFeaturePortEnableChange   

    MINIPORT_RH_ClearFeaturePortConnectChange   

    MINIPORT_RH_ClearFeaturePortResetChange   

*/

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_RH_PORT_FUNCTION) (
        PDEVICE_DATA, 
        USHORT
    );

/***************************************************************
 INTERRUPT Functions
 
these functions are not serialized
****************************************************************/

/*
    MINIPORT_InterruptService    

    IRQL = ANY

BOOLEAN
MINIPORT_InterruptService (
    PDEVICE_DATA DeviceData
    );
*/

typedef BOOLEAN
    (USBMPFN *PMPFN_INTERRUPT_SERVICE) (
        PDEVICE_DATA
    );


/*
    MINIPORT_InterruptDpc    

    Called by port in response to an interrupt generated by the HW.

    This function is not serialize with other core functions since 
    which allow it to call services in USBPORT that result in 
    immediate calls to core functions.

    The port driver passes a flag to indicate if interrupts need 
    to be re-enabled on completion of this routine.  This is to handle
    the rare case where interrupts have been disabled just after the
    ISR has queued a DPC.

    IRQL = DISPATCH_LEVEL

VOID
MINIPORT_InterruptDpc (
    PDEVICE_DATA DeviceData
    BOOLEAN EnableInterrupts
    );
*/

typedef VOID
    (USBMPFN *PMPFN_INTERRUPT_DPC) (
        PDEVICE_DATA, 
        BOOLEAN 
    );


/***************************************************************
 DEBUG/TEST Functions
 
****************************************************************/

/*
    MINIPORT_SendOnePacket    

    IRQL = ANY

    used to support the single-step debug application.  This api is
    OPTIONAL

    

VOID
MINIPORT_SendOnePacket (
    PDEVICE_DATA DeviceData,
    PPACKET_PARAMETERS PacketParameters,
    PUCHAR PacketData,
    PULONG PacketLength,
    PUCHAR WorkspaceVirtualAddress,
    HW_32BIT_PHYSICAL_ADDRESS WorkspacePhysicalAddress,
    ULONG WorkspaceLength,
    PUSBD_STATUS UsbdStatus
    );

*/

typedef enum _SS_PACKET_TYPE {
    ss_Setup = 0,
    ss_In, 
    ss_Out,
    ss_Iso_In,
    ss_Iso_Out
} SS_PACKET_TYPE;    


typedef enum _SS_PACKET_SPEED {
    ss_Low = 0,
    ss_Full, 
    ss_High
} SS_PACKET_SPEED;    


typedef enum _SS_PACKET_DATA_TOGGLE {
    ss_Toggle0 = 0,
    ss_Toggle1
} SS_PACKET_DATA_TOGGLE;    


typedef struct _MP_PACKET_PARAMETERS {
    UCHAR DeviceAddress;
    UCHAR EndpointAddress;
    USHORT MaximumPacketSize;
    USHORT ErrorCount;
    USHORT Pad;
    SS_PACKET_TYPE Type;
    SS_PACKET_SPEED Speed;
    SS_PACKET_DATA_TOGGLE Toggle;
    /* 2.0 hubs */
    USHORT HubDeviceAddress;
    USHORT PortTTNumber;
} MP_PACKET_PARAMETERS, *PMP_PACKET_PARAMETERS;

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_SEND_ONE_PACKET) (
        PDEVICE_DATA, 
        PMP_PACKET_PARAMETERS,
        PUCHAR, 
        PULONG,
        PUCHAR,
        HW_32BIT_PHYSICAL_ADDRESS,
        ULONG,
        USBD_STATUS *
    );


/***************************************************************
 API Functions
    These are called at IRQL passive_level
****************************************************************/

/*
    MINIPORT_PassThru    

    IRQL = PASSIVE_LEVEL

    

USB_MINIPORT_STATUS
MINIPORT_PassThru (
    PDEVICE_DATA DeviceData,
    GUID *FunctionGuid,
    ULONG ParameterLength,
    PVOID Parameters
    );
*/

typedef USB_MINIPORT_STATUS
    (USBMPFN *PMPFN_PASS_THRU) (
        PDEVICE_DATA, 
        GUID *, 
        ULONG,
        PVOID 
    );
    
/***************************************************************
 ***************************************************************
 REGISTRATION PACKET
 ***************************************************************
****************************************************************/

/* HCI Hardware Types */

typedef enum _USB_HCI_TYPE {

    USB_UNKNOWN_HCI = 0,
    USB_OHCI,   
    USB_UHCI,   
    USB_EHCI
    
} USB_HCI_TYPE;


/* Miniport Option Flags */

/* resources required by miniport */ 
#define USB_MINIPORT_OPT_NEED_IRQ             0x00000001
#define USB_MINIPORT_OPT_NEED_IOPORT          0x00000002
#define USB_MINIPORT_OPT_NEED_MEMORY          0x00000004
/* USB version */
#define USB_MINIPORT_OPT_USB11                0x00000008
#define USB_MINIPORT_OPT_USB20                0x00000010
/* support selective suspend */
#define USB_MINIPORT_OPT_NO_SS                0x00000020
/* disables synchronization of the ISRDPC and the 
   MP_DisableInterrupts function. usbed by UHCI 
   to clear/ set PIRQD in config space. */
#define USB_MINIPORT_OPT_NO_IRQ_SYNC          0x00000040
/* indicates controller poll routine should be called 
    this will always be at least ounce evert 500ms
*/    
#define USB_MINIPORT_OPT_POLL_CONTROLLER      0x00000080
/* for bridge drivers with no hw resources */
#define USB_MINIPORT_OPT_NO_PNP_RESOURCES     0x00000100
/* poll whe HW suspended */
#define USB_MINIPORT_OPT_POLL_IN_SUSPEND      0x00000200

#define USB_MINIPORT_HCI_VERSION USB_MINIPORT_HCI_VERSION_1
#define USB_MINIPORT_HCI_VERSION_1            100
#define USB_MINIPORT_HCI_VERSION_2            200

/*
    Bus Bandwidth defined by spec
*/
#define USB_11_BUS_BANDWIDTH                12000
#define USB_20_BUS_BANDWIDTH                400000

#define USB_HCI_MN                          0x10000001

/* version shipped with XP 2600 this must remaon unchanged */

typedef struct _USBPORT_REGISTRATION_PACKET_V1 {

    /* begin version (1) interface definition */

    /* Host Controller HCI Type */
    USB_HCI_TYPE HciType;    
    
    /* registration parameters */
    ULONG OptionFlags;

    /* 
       Total bus bandwidth avaibale in MBits
     */
    ULONG BusBandwidth;

    LONG Reserved;

    ULONG DeviceDataSize;
    ULONG EndpointDataSize;
    ULONG TransferContextSize;

    /* 7 char ASCII NULL terminated name */
    UCHAR Name[8]; 

    /*
        Amount of global common buffer needed
        this memory is passed to the miniport on 
        a start and freed on a stop 
    */
    ULONG CommonBufferBytes;

    /* miniport Functions */
    PMPFN_OPEN_ENDPOINT                   MINIPORT_OpenEndpoint;
    PMPFN_POKE_ENDPOINT                   MINIPORT_PokeEndpoint;
    PMPFN_QENDPOINT_REQUIREMENTS          MINIPORT_QueryEndpointRequirements;
    PMPFN_CLOSE_ENDPOINT                  MINIPORT_CloseEndpoint;
    PMPFN_START_CONTROLLER                MINIPORT_StartController;
    PMPFN_STOP_CONTROLLER                 MINIPORT_StopController;
    PMPFN_SUSPEND_CONTROLLER              MINIPORT_SuspendController;  
    PMPFN_RESUME_CONTROLLER               MINIPORT_ResumeController;
    PMPFN_INTERRUPT_SERVICE               MINIPORT_InterruptService;
    PMPFN_INTERRUPT_DPC                   MINIPORT_InterruptDpc;
    PMPFN_SUBMIT_TRANSFER                 MINIPORT_SubmitTransfer;
    PMPFN_SUBMIT_ISO_TRANSFER             MINIPORT_SubmitIsoTransfer;
    PMPFN_ABORT_TRANSFER                  MINIPORT_AbortTransfer;
    PMPFN_GET_ENDPOINT_STATE              MINIPORT_GetEndpointState;
    PMPFN_SET_ENDPOINT_STATE              MINIPORT_SetEndpointState;  
    PMPFN_POLL_ENDPOINT                   MINIPORT_PollEndpoint; 
    PMPFN_CHECK_CONTROLLER                MINIPORT_CheckController;
    PMPFN_GET_32BIT_FRAME_NUMBER          MINIPORT_Get32BitFrameNumber;
    PMPFN_INTERRUPT_NEXT_SOF              MINIPORT_InterruptNextSOF;
    PMPFN_ENABLE_INTERRUPTS               MINIPORT_EnableInterrupts;
    PMPFN_DISABLE_INTERRUPTS              MINIPORT_DisableInterrupts;
    PMPFN_POLL_CONTROLLER                 MINIPORT_PollController;
    PMPFN_SET_ENDPOINT_DATA_TOGGLE        MINIPORT_SetEndpointDataToggle; 
    PMPFN_GET_ENDPOINT_STATUS             MINIPORT_GetEndpointStatus;
    PMPFN_SET_ENDPOINT_STATUS             MINIPORT_SetEndpointStatus;  
    PMPFN_RESET_CONTROLLER                MINIPORT_ResetController;  
   
    /* root hub functions */
    PMPFN_RH_GET_ROOTHUB_DATA             MINIPORT_RH_GetRootHubData;
    PMPFN_RH_GET_STATUS                   MINIPORT_RH_GetStatus;
    PMPFN_RH_GET_PORT_STATUS              MINIPORT_RH_GetPortStatus;  
    PMPFN_RH_GET_HUB_STATUS               MINIPORT_RH_GetHubStatus;  
    /* root hub port functions */                                
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortReset;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortPower;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortEnable;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortSuspend;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortEnable;    
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortPower;   
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortSuspend; 
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortEnableChange;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortConnectChange;        
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortResetChange;                                                        
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortSuspendChange;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortOvercurrentChange;
    
    /* optional root hub functions */
    PMPFN_RH_DISABLE_IRQ                  MINIPORT_RH_DisableIrq;
    PMPFN_RH_ENABLE_IRQ                   MINIPORT_RH_EnableIrq;

    /* OPTIONAL DEBUG SERVICES
    
        Miniport should return USBMP_STATUS_NOT_SUPPORTED for the 
        services not supported.
     */
    PMPFN_SEND_ONE_PACKET                 MINIPORT_StartSendOnePacket;
    PMPFN_SEND_ONE_PACKET                 MINIPORT_EndSendOnePacket;

    /* PASS-THRU API function
        
    */
    PMPFN_PASS_THRU                        MINIPORT_PassThru;
    

    /* interface Services */
    PPORTFN_DBGPRINT                            USBPORTSVC_DbgPrint;
    PPORTFN_TEST_DEBUG_BREAK                    USBPORTSVC_TestDebugBreak;
    PPORTFN_ASSERT_FAILURE                      USBPORTSVC_AssertFailure;
    PPORTFN_GET_MINIPORT_REGESTRY_KEY_VALUE     USBPORTSVC_GetMiniportRegistryKeyValue;
    PPORTFN_INVALIDATE_ROOTHUB                  USBPORTSVC_InvalidateRootHub;
    PPORTFN_INVALIDATE_ENDPOINT                 USBPORTSVC_InvalidateEndpoint;
    PPORTFN_COMPLETE_TRANSFER                   USBPORTSVC_CompleteTransfer;
    PPORTFN_COMPLETE_ISO_TRANSFER               USBPORTSVC_CompleteIsoTransfer;
    PPORTFN_LOGENTRY                            USBPORTSVC_LogEntry;
    PPORTFN_PHYS_TO_VIRTUAL                     USBPORTSVC_MapHwPhysicalToVirtual;
    PPORTFN_REQUEST_ASYNC_CALLBACK              USBPORTSVC_RequestAsyncCallback;
    PPORTFN_READWRITE_CONFIG_SPACE              USBPORTSVC_ReadWriteConfigSpace;
    PPORTFN_WAIT                                USBPORTSVC_Wait;
    PPORTFN_INVALIDATE_CONTROLLER               USBPORTSVC_InvalidateController;
    PPORTFN_BUGCHECK                            USBPORTSVC_BugCheck;
    PPORTFN_NOTIFY_DOUBLE_BUFFER                USBPORTSVC_NotifyDoubleBuffer;

    PMPFN_REBALANCE_ENDPOINT                    MINIPORT_RebalanceEndpoint;  
    PMPFN_FLUSH_INTERRUPTS                      MINIPORT_FlushInterrupts;

} USBPORT_REGISTRATION_PACKET_V1, *PUSBPORT_REGISTRATION_PACKET_V1;

/*
    Miniport version 2 (current) api packet
*/
typedef struct _USBPORT_REGISTRATION_PACKET {

    /* begin version (1) interface definition */

    /* Host Controller HCI Type */
    USB_HCI_TYPE HciType;    
    
    /* registration parameters */
    ULONG OptionFlags;

    /* 
       Total bus bandwidth avaibale in MBits
     */
    ULONG BusBandwidth;

    LONG Reserved;

    ULONG DeviceDataSize;
    ULONG EndpointDataSize;
    ULONG TransferContextSize;

    /* 7 char ASCII NULL terminated name */
    UCHAR Name[8]; 

    /*
        Amount of global common buffer needed
        this memory is passed to the miniport on 
        a start and freed on a stop 
    */
    ULONG CommonBufferBytes;

    /* miniport Functions */
    PMPFN_OPEN_ENDPOINT                   MINIPORT_OpenEndpoint;
    PMPFN_POKE_ENDPOINT                   MINIPORT_PokeEndpoint;
    PMPFN_QENDPOINT_REQUIREMENTS          MINIPORT_QueryEndpointRequirements;
    PMPFN_CLOSE_ENDPOINT                  MINIPORT_CloseEndpoint;
    PMPFN_START_CONTROLLER                MINIPORT_StartController;
    PMPFN_STOP_CONTROLLER                 MINIPORT_StopController;
    PMPFN_SUSPEND_CONTROLLER              MINIPORT_SuspendController;  
    PMPFN_RESUME_CONTROLLER               MINIPORT_ResumeController;
    PMPFN_INTERRUPT_SERVICE               MINIPORT_InterruptService;
    PMPFN_INTERRUPT_DPC                   MINIPORT_InterruptDpc;
    PMPFN_SUBMIT_TRANSFER                 MINIPORT_SubmitTransfer;
    PMPFN_SUBMIT_ISO_TRANSFER             MINIPORT_SubmitIsoTransfer;
    PMPFN_ABORT_TRANSFER                  MINIPORT_AbortTransfer;
    PMPFN_GET_ENDPOINT_STATE              MINIPORT_GetEndpointState;
    PMPFN_SET_ENDPOINT_STATE              MINIPORT_SetEndpointState;  
    PMPFN_POLL_ENDPOINT                   MINIPORT_PollEndpoint; 
    PMPFN_CHECK_CONTROLLER                MINIPORT_CheckController;
    PMPFN_GET_32BIT_FRAME_NUMBER          MINIPORT_Get32BitFrameNumber;
    PMPFN_INTERRUPT_NEXT_SOF              MINIPORT_InterruptNextSOF;
    PMPFN_ENABLE_INTERRUPTS               MINIPORT_EnableInterrupts;
    PMPFN_DISABLE_INTERRUPTS              MINIPORT_DisableInterrupts;
    PMPFN_POLL_CONTROLLER                 MINIPORT_PollController;
    PMPFN_SET_ENDPOINT_DATA_TOGGLE        MINIPORT_SetEndpointDataToggle; 
    PMPFN_GET_ENDPOINT_STATUS             MINIPORT_GetEndpointStatus;
    PMPFN_SET_ENDPOINT_STATUS             MINIPORT_SetEndpointStatus;  
    PMPFN_RESET_CONTROLLER                MINIPORT_ResetController;  
   
    /* root hub functions */
    PMPFN_RH_GET_ROOTHUB_DATA             MINIPORT_RH_GetRootHubData;
    PMPFN_RH_GET_STATUS                   MINIPORT_RH_GetStatus;
    PMPFN_RH_GET_PORT_STATUS              MINIPORT_RH_GetPortStatus;  
    PMPFN_RH_GET_HUB_STATUS               MINIPORT_RH_GetHubStatus;  
    /* root hub port functions */                                
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortReset;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortPower;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortEnable;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_SetFeaturePortSuspend;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortEnable;    
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortPower;   
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortSuspend; 
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortEnableChange;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortConnectChange;        
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortResetChange;                                                        
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortSuspendChange;
    PMPFN_RH_PORT_FUNCTION      MINIPORT_RH_ClearFeaturePortOvercurrentChange;
    
    /* optional root hub functions */
    PMPFN_RH_DISABLE_IRQ                  MINIPORT_RH_DisableIrq;
    PMPFN_RH_ENABLE_IRQ                   MINIPORT_RH_EnableIrq;

    /* OPTIONAL DEBUG SERVICES
    
        Miniport should return USBMP_STATUS_NOT_SUPPORTED for the 
        services not supported.
     */
    PMPFN_SEND_ONE_PACKET                 MINIPORT_StartSendOnePacket;
    PMPFN_SEND_ONE_PACKET                 MINIPORT_EndSendOnePacket;

    /* PASS-THRU API function
        
    */
    PMPFN_PASS_THRU                        MINIPORT_PassThru;
    

    /* interface Services */
    PPORTFN_DBGPRINT                            USBPORTSVC_DbgPrint;
    PPORTFN_TEST_DEBUG_BREAK                    USBPORTSVC_TestDebugBreak;
    PPORTFN_ASSERT_FAILURE                      USBPORTSVC_AssertFailure;
    PPORTFN_GET_MINIPORT_REGESTRY_KEY_VALUE     USBPORTSVC_GetMiniportRegistryKeyValue;
    PPORTFN_INVALIDATE_ROOTHUB                  USBPORTSVC_InvalidateRootHub;
    PPORTFN_INVALIDATE_ENDPOINT                 USBPORTSVC_InvalidateEndpoint;
    PPORTFN_COMPLETE_TRANSFER                   USBPORTSVC_CompleteTransfer;
    PPORTFN_COMPLETE_ISO_TRANSFER               USBPORTSVC_CompleteIsoTransfer;
    PPORTFN_LOGENTRY                            USBPORTSVC_LogEntry;
    PPORTFN_PHYS_TO_VIRTUAL                     USBPORTSVC_MapHwPhysicalToVirtual;
    PPORTFN_REQUEST_ASYNC_CALLBACK              USBPORTSVC_RequestAsyncCallback;
    PPORTFN_READWRITE_CONFIG_SPACE              USBPORTSVC_ReadWriteConfigSpace;
    PPORTFN_WAIT                                USBPORTSVC_Wait;
    PPORTFN_INVALIDATE_CONTROLLER               USBPORTSVC_InvalidateController;
    PPORTFN_BUGCHECK                            USBPORTSVC_BugCheck;
    PPORTFN_NOTIFY_DOUBLE_BUFFER                USBPORTSVC_NotifyDoubleBuffer;

    PMPFN_REBALANCE_ENDPOINT                    MINIPORT_RebalanceEndpoint;  
    PMPFN_FLUSH_INTERRUPTS                      MINIPORT_FlushInterrupts;

    /* end version (1) definition */       

    /* begin version (2) definition */
    PMPFN_RH_PORT_FUNCTION                      MINIPORT_Chirp_RH_Port;
    PMPFN_TAKE_PORT_CONTROL                     MINIPORT_TakePortControl;
    PVOID pad2;
    PVOID pad3;
    
    /* end version (2) definition */

} USBPORT_REGISTRATION_PACKET, *PUSBPORT_REGISTRATION_PACKET;

/************************************************************** 
**************************************************************
 USBPORT DLL Services    
***************************************************************    
***************************************************************/

#ifndef USBPORT

DECLSPEC_IMPORT
NTSTATUS
USBPORT_RegisterUSBPortDriver(
    PDRIVER_OBJECT DriverObject,
    ULONG MiniportHciVersion,
    PUSBPORT_REGISTRATION_PACKET RegistrationPacket
    );

DECLSPEC_IMPORT
ULONG
USBPORT_GetHciMn(
    );

#endif    

/* miniport must define these */

#undef PDEVICE_DATA
#undef PTRANSFER_CONTEXT
#undef PENDPOINT_DATA 

#endif /* __USB_HCDI_H__ */