//
// This file contains a 'Sample Driver' and is licensed as such
// under the terms of your license agreement with Intel or your
// vendor. This file may be modified by the user, subject to
// the additional terms of the license agreement
//
/** @file
Internal data structures and function prototype definitions.
Copyright (c) 2013 - 2017, Intel Corporation. All rights reserved.
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
**/
#ifndef _EFI_USB_BTHCI_DXE_H_
#define _EFI_USB_BTHCI_DXE_H_
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#define BT_ACL_INTERRUPT_WAIT_TIME 1 // 500us
#define USB_BTHCI_DEV_SIGNATURE SIGNATURE_32 ('u', 'b', 't', 'h')
typedef enum {
BtHciPrimaryControllerSingle,
BtHciPrimaryControllerComposit,
BtHciAMPControllerSingle,
BtHciAMPControllerComposit,
} BTHCI_TYPE;
typedef struct {
UINT8 DeviceClass;
UINT8 DeviceSubClass;
UINT8 DeviceProtocol;
UINT8 InterfaceClass;
UINT8 InterfaceSubClass;
UINT8 InterfaceProtocol;
BTHCI_TYPE BtHciType;
} USB_BTHCI_INFO;
///
/// Device instance of USB BtHci.
///
typedef struct {
EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK Callback;
VOID *Context;
UINTN PollingInterval;
UINTN DataLength;
} USB_BTHCI_CALLBACK_CONTEXT;
typedef struct {
UINTN Signature;
EFI_HANDLE ControllerHandle;
EFI_EVENT DelayedRecoveryEvent;
EFI_USB_IO_PROTOCOL *UsbIo;
EFI_USB_DEVICE_DESCRIPTOR DeviceDescriptor;
EFI_USB_CONFIG_DESCRIPTOR ConfigurationDescriptor;
EFI_USB_INTERFACE_DESCRIPTOR InterfaceDescriptor;
EFI_USB_ENDPOINT_DESCRIPTOR InEndpointDescriptor;
EFI_USB_ENDPOINT_DESCRIPTOR OutEndpointDescriptor;
EFI_USB_ENDPOINT_DESCRIPTOR IntEndpointDescriptor;
BTHCI_TYPE BtHciType;
EFI_BLUETOOTH_HC_PROTOCOL BluetoothHc;
USB_BTHCI_CALLBACK_CONTEXT EventCallbackContext;
USB_BTHCI_CALLBACK_CONTEXT AclCallbackContext;
// ACL Event is NOT needed if USB protocol support AsyncBulk
EFI_EVENT AclEvent;
EFI_UNICODE_STRING_TABLE *ControllerNameTable;
//
// Used for ACL buffer
//
UINTN MaxAclDataSize;
UINT8 *PendingAclData;
UINTN PendingAclDataSize;
UINTN RemainingAclDataSize;
} USB_BTHCI_DEV;
#define USB_BTHCI_DEV_FROM_BLUETOOTH_HC_PROTOCOL(a) \
CR(a, USB_BTHCI_DEV, BluetoothHc, USB_BTHCI_DEV_SIGNATURE)
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gUsbBtHciDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gUsbBtHciComponentName;
extern EFI_COMPONENT_NAME2_PROTOCOL gUsbBtHciComponentName2;
//
// Functions of Driver Binding Protocol
//
/**
Check whether USB BtHci driver supports this device.
@param This The USB BtHci driver binding protocol.
@param Controller The controller handle to check.
@param RemainingDevicePath The remaining device path.
@retval EFI_SUCCESS The driver supports this controller.
@retval other This device isn't supported.
**/
EFI_STATUS
EFIAPI
USBBtHciDriverBindingSupported (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Starts the BtHci device with this driver.
This function consumes USB I/O Portocol, intializes USB BtHci device,
installs Bluetooth HC Protocol.
@param This The USB BtHci driver binding instance.
@param Controller Handle of device to bind driver to.
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@retval EFI_SUCCESS This driver supports this device.
@retval EFI_UNSUPPORTED This driver does not support this device.
@retval EFI_DEVICE_ERROR This driver cannot be started due to device Error.
@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
@retval EFI_ALREADY_STARTED This driver has been started.
**/
EFI_STATUS
EFIAPI
USBBtHciDriverBindingStart (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
);
/**
Stop the USB BtHci device handled by this driver.
@param This The USB BtHci driver binding protocol.
@param Controller The controller to release.
@param NumberOfChildren The number of handles in ChildHandleBuffer.
@param ChildHandleBuffer The array of child handle.
@retval EFI_SUCCESS The device was stopped.
@retval EFI_UNSUPPORTED Bluetooth HC Protocol is not installed on Controller.
@retval Others Fail to uninstall protocols attached on the device.
**/
EFI_STATUS
EFIAPI
USBBtHciDriverBindingStop (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
IN EFI_HANDLE Controller,
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
);
//
// EFI Component Name Functions
//
/**
Retrieves a Unicode string that is the user readable name of the driver.
This function retrieves the user readable name of a driver in the form of a
Unicode string. If the driver specified by This has a user readable name in
the language specified by Language, then a pointer to the driver name is
returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
by This does not support the language specified by Language,
then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified
in RFC 4646 or ISO 639-2 language code format.
@param DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the Driver specified by
This and the language specified by Language was
returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UsbBtHciComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
/**
Retrieves a Unicode string that is the user readable name of the controller
that is being managed by a driver.
This function retrieves the user readable name of the controller specified by
ControllerHandle and ChildHandle in the form of a Unicode string. If the
driver specified by This has a user readable name in the language specified by
Language, then a pointer to the controller name is returned in ControllerName,
and EFI_SUCCESS is returned. If the driver specified by This is not currently
managing the controller specified by ControllerHandle and ChildHandle,
then EFI_UNSUPPORTED is returned. If the driver specified by This does not
support the language specified by Language, then EFI_UNSUPPORTED is returned.
@param This A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle The handle of a controller that the driver
specified by This is managing. This handle
specifies the controller whose name is to be
returned.
@param ChildHandle The handle of the child controller to retrieve
the name of. This is an optional parameter that
may be NULL. It will be NULL for device
drivers. It will also be NULL for a bus drivers
that wish to retrieve the name of the bus
controller. It will not be NULL for a bus
driver that wishes to retrieve the name of a
child controller.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller is
requesting, and it must match one of the
languages specified in SupportedLanguages. The
number of languages supported by a driver is up
to the driver writer. Language is specified in
RFC 4646 or ISO 639-2 language code format.
@param ControllerName A pointer to the Unicode string to return.
This Unicode string is the name of the
controller specified by ControllerHandle and
ChildHandle in the language specified by
Language from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user readable name in
the language specified by Language for the
driver specified by This was returned in
DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is not currently
managing the controller specified by
ControllerHandle and ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This does not support
the language specified by Language.
**/
EFI_STATUS
EFIAPI
UsbBtHciComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
//
// Internal worker functions
//
/**
Uses USB I/O to check whether the device is a USB BtHci device.
@param UsbIo Pointer to a USB I/O protocol instance.
@retval Not NULL Device is a USB BtHci device.
@retval NULL Device is a not USB BtHci device.
**/
USB_BTHCI_INFO *
IsUsbBtHci (
IN EFI_USB_IO_PROTOCOL *UsbIo
);
/**
Send HCI command packet.
The UsbBtHciSendCommand() function sends HCI command packet. Buffer holds the
whole HCI command packet, including OpCode, OCF, OGF, parameter length, and
parameters. When this function is returned, it just means the HCI command
packet is sent, it does not mean the command is success or complete. Caller
might need to wait a command status event to know the command status, or wait
a command complete event to know if the command is completed.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in,out] BufferSize On input, indicates the size, in bytes, of the
data buffer specified by Buffer. On output,
indicates the amount of data actually
transferred.
@param[in] Buffer A pointer to the buffer of data that will be
transmitted to Bluetooth host controller.
@param[in] Timeout Indicating the transfer should be completed
within this time frame. The units are in
milliseconds. If Timeout is 0, then the caller
must wait for the function to be completed until
EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The HCI command packet is sent successfully.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
BufferSize is NULL.
*BufferSize is 0.
Buffer is NULL.
@retval EFI_TIMEOUT Sending HCI command packet fail due to
timeout.
@retval EFI_DEVICE_ERROR Sending HCI command packet fail due to host
controller or device error.
**/
EFI_STATUS
EFIAPI
UsbBtHciSendCommand (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN OUT UINTN *BufferSize,
IN VOID *Buffer,
IN UINTN Timeout
);
/**
Receive HCI event packet.
The UsbBtHciReceiveEvent() function receives HCI event packet. Buffer holds
the whole HCI event packet, including EventCode, parameter length, and
parameters.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in,out] BufferSize On input, indicates the size, in bytes, of the
data buffer specified by Buffer. On output,
indicates the amount of data actually
transferred.
@param[out] Buffer A pointer to the buffer of data that will be
received from Bluetooth host controller.
@param[in] Timeout Indicating the transfer should be completed
within this time frame. The units are in
milliseconds. If Timeout is 0, then the caller
must wait for the function to be completed until
EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The HCI event packet is received
successfully.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
BufferSize is NULL.
*BufferSize is 0.
Buffer is NULL.
@retval EFI_TIMEOUT Receiving HCI event packet fail due to
timeout.
@retval EFI_DEVICE_ERROR Receiving HCI event packet fail due to host
controller or device error.
**/
EFI_STATUS
EFIAPI
UsbBtHciReceiveEvent (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer,
IN UINTN Timeout
);
/**
Receive HCI event packet in non-blocking way.
The UsbBtHciAsyncReceiveEvent() function receives HCI event packet in
non-blocking way. Data in Callback function holds the whole HCI event packet,
including EventCode, parameter length, and parameters.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in] IsNewTransfer If TRUE, a new transfer will be submitted. If
FALSE, the request is deleted.
@param[in] PollingInterval Indicates the periodic rate, in milliseconds,
that the transfer is to be executed.
@param[in] DataLength Specifies the length, in bytes, of the data to
be received.
@param[in] Callback The callback function. This function is called
if the asynchronous transfer is completed.
@param[in] Context Data passed into Callback function. This is
optional parameter and may be NULL.
@retval EFI_SUCCESS The HCI asynchronous receive request is
submitted successfully.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
DataLength is 0.
If IsNewTransfer is TRUE, and an
asynchronous receive request already
exists.
**/
EFI_STATUS
EFIAPI
UsbBtHciAsyncReceiveEvent (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN BOOLEAN IsNewTransfer,
IN UINTN PollingInterval,
IN UINTN DataLength,
IN EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK Callback,
IN VOID *Context
);
/**
Send HCI ACL data packet.
The UsbBtHciSendACLData() function sends HCI ACL data packet. Buffer holds
the whole HCI ACL data packet, including Handle, PB flag, BC flag, data
length, and data.
The UsbBtHciSendACLData() function and UsbBtHciReceiveACLData() function just
send and receive data payload from application layer. In order to protect the
payload data, the Bluetooth bus is required to call
HCI_Set_Connection_Encryption command to enable hardware based encryption
after authentication completed, according to pairing mode and host
capability.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in, out] BufferSize On input, indicates the size, in bytes, of the
data buffer specified by Buffer. On output,
indicates the amount of data actually
transferred.
@param[in] Buffer A pointer to the buffer of data that will be
transmitted to Bluetooth host controller.
@param[in] Timeout Indicating the transfer should be completed
within this time frame. The units are in
milliseconds. If Timeout is 0, then the caller
must wait for the function to be completed until
EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The HCI ACL data packet is sent successfully.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
BufferSize is NULL.
*BufferSize is 0.
Buffer is NULL.
@retval EFI_TIMEOUT Sending HCI ACL data packet fail due to
timeout.
@retval EFI_DEVICE_ERROR Sending HCI ACL data packet fail due to host
controller or device error.
**/
EFI_STATUS
EFIAPI
UsbBtHciSendACLData (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN OUT UINTN *BufferSize,
IN VOID *Buffer,
IN UINTN Timeout
);
/**
Receive HCI ACL data packet.
The UsbBtHciReceiveACLData() function receives HCI ACL data packet. Buffer
holds the whole HCI ACL data packet, including Handle, PB flag, BC flag, data
length, and data.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in, out] BufferSize On input, indicates the size, in bytes, of the
data buffer specified by Buffer. On output,
indicates the amount of data actually
transferred.
@param[out] Buffer A pointer to the buffer of data that will be
received from Bluetooth host controller.
@param[in] Timeout Indicating the transfer should be completed
within this time frame. The units are in
milliseconds. If Timeout is 0, then the caller
must wait for the function to be completed until
EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The HCI ACL data packet is received
successfully.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
BufferSize is NULL.
*BufferSize is 0.
Buffer is NULL.
@retval EFI_TIMEOUT Receiving HCI ACL data packet fail due to
timeout.
@retval EFI_DEVICE_ERROR Receiving HCI ACL data packet fail due to
host controller or device error.
**/
EFI_STATUS
EFIAPI
UsbBtHciReceiveACLData (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer,
IN UINTN Timeout
);
/**
Receive HCI ACL data packet in non-blocking way.
The UsbBtHciAsyncReceiveACLData() function receives HCI ACL data packet in
non-blocking way. Data in Callback holds the whole HCI ACL data packet,
including Handle, PB flag, BC flag, data length, and data.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in] IsNewTransfer If TRUE, a new transfer will be submitted. If
FALSE, the request is deleted.
@param[in] PollingInterval Indicates the periodic rate, in milliseconds,
that the transfer is to be executed.
@param[in] DataLength Specifies the length, in bytes, of the data to
be received.
@param[in] Callback The callback function. This function is called
if the asynchronous transfer is completed.
@param[in] Context Data passed into Callback function. This is
optional parameter and may be NULL.
@retval EFI_SUCCESS The HCI asynchronous receive request is
submitted successfully.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
DataLength is 0.
If IsNewTransfer is TRUE, and an
asynchronous receive request already
exists.
**/
EFI_STATUS
EFIAPI
UsbBtHciAsyncReceiveACLData (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN BOOLEAN IsNewTransfer,
IN UINTN PollingInterval,
IN UINTN DataLength,
IN EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK Callback,
IN VOID *Context
);
/**
Send HCI SCO data packet.
The UsbBtHciSendSCOData() function sends HCI SCO data packet. Buffer holds
the whole HCI SCO data packet, including ConnectionHandle, PacketStatus flag,
data length, and data.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in,out] BufferSize On input, indicates the size, in bytes, of the
data buffer specified by Buffer. On output,
indicates the amount of data actually
transferred.
@param[in] Buffer A pointer to the buffer of data that will be
transmitted to Bluetooth host controller.
@param[in] Timeout Indicating the transfer should be completed
within this time frame. The units are in
milliseconds. If Timeout is 0, then the caller
must wait for the function to be completed until
EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The HCI SCO data packet is sent successfully.
@retval EFI_UNSUPPORTED The implementation does not support HCI SCO
transfer.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
BufferSize is NULL.
*BufferSize is 0.
Buffer is NULL.
@retval EFI_TIMEOUT Sending HCI SCO data packet fail due to
timeout.
@retval EFI_DEVICE_ERROR Sending HCI SCO data packet fail due to host
controller or device error.
**/
EFI_STATUS
EFIAPI
UsbBtHciSendSCOData (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN OUT UINTN *BufferSize,
IN VOID *Buffer,
IN UINTN Timeout
);
/**
Receive HCI SCO data packet.
The UsbBtHciReceiveSCOData() function receives HCI SCO data packet. Buffer
holds the whole HCI SCO data packet, including ConnectionHandle, PacketStatus
flag, data length, and data.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in,out] BufferSize On input, indicates the size, in bytes, of the
data buffer specified by Buffer. On output,
indicates the amount of data actually
transferred.
@param[out] Buffer A pointer to the buffer of data that will be
received from Bluetooth host controller.
@param[in] Timeout Indicating the transfer should be completed
within this time frame. The units are in
milliseconds. If Timeout is 0, then the caller
must wait for the function to be completed until
EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The HCI SCO data packet is received
successfully.
@retval EFI_UNSUPPORTED The implementation does not support HCI SCO
transfer.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
BufferSize is NULL.
*BufferSize is 0.
Buffer is NULL.
@retval EFI_TIMEOUT Receiving HCI SCO data packet fail due to
timeout.
@retval EFI_DEVICE_ERROR Receiving HCI SCO data packet fail due to
host controller or device error.
**/
EFI_STATUS
EFIAPI
UsbBtHciReceiveSCOData (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN OUT UINTN *BufferSize,
OUT VOID *Buffer,
IN UINTN Timeout
);
/**
Receive HCI SCO data packet in non-blocking way.
The UsbBtHciAsyncReceiveSCOData() function receives HCI SCO data packet in
non-blocking way. Data in Callback holds the whole HCI SCO data packet,
including ConnectionHandle, PacketStatus flag, data length, and data.
@param[in] This Pointer to the EFI_BLUETOOTH_HC_PROTOCOL
instance.
@param[in] IsNewTransfer If TRUE, a new transfer will be submitted. If
FALSE, the request is deleted.
@param[in] PollingInterval Indicates the periodic rate, in milliseconds,
that the transfer is to be executed.
@param[in] DataLength Specifies the length, in bytes, of the data to
be received.
@param[in] Callback The callback function. This function is called
if the asynchronous transfer is completed.
@param[in] Context Data passed into Callback function. This is
optional parameter and may be NULL.
@retval EFI_SUCCESS The HCI asynchronous receive request is
submitted successfully.
@retval EFI_UNSUPPORTED The implementation does not support HCI SCO
transfer.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is
TRUE:
DataLength is 0.
If IsNewTransfer is TRUE, and an asynchronous receive
request already exists.
**/
EFI_STATUS
EFIAPI
UsbBtHciAsyncReceiveSCOData (
IN EFI_BLUETOOTH_HC_PROTOCOL *This,
IN BOOLEAN IsNewTransfer,
IN UINTN PollingInterval,
IN UINTN DataLength,
IN EFI_BLUETOOTH_HC_ASYNC_FUNC_CALLBACK Callback,
IN VOID *Context
);
/**
Handler for Delayed Recovery event.
This function is the handler for Delayed Recovery event triggered
by timer.
After a device error occurs, the event would be triggered
with interval of EFI_USB_INTERRUPT_DELAY. EFI_USB_INTERRUPT_DELAY
is defined in USB standard for error handling.
@param Event The Delayed Recovery event.
@param Context Points to the USB_KB_DEV instance.
**/
VOID
EFIAPI
UsbBtHciRecoveryHandler (
IN EFI_EVENT Event,
IN VOID *Context
);
#endif