UefiNotTiano.c revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
Library functions that abstract areas of conflict between framework and UEFI 2.0.
Help Port Framework code that has conflicts with UEFI 2.0 by hiding the
old conflicts with library functions and supporting implementations of the old
it contains DXE enum extensions for EFI event services.
Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "UefiLibInternal.h"
/**
An empty function to pass error checking of CreateEventEx ().
This empty function ensures that EVT_NOTIFY_SIGNAL_ALL is error
checked correctly since it is now mapped into CreateEventEx() in UEFI 2.0.
@param Event Event whose notification function is being invoked.
@param Context Pointer to the notification function's context,
which is implementation-dependent.
**/
)
{
return;
}
/**
Create a Legacy Boot Event.
Tiano extended the CreateEvent Type enum to add a legacy boot event type.
This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was
added and now it's possible to not voilate the UEFI specification by
declaring a GUID for the legacy boot event class. This library supports
work both ways.
@param LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).
@retval EFI_SUCCESS Event was created.
@retval Other Event was not created.
**/
)
{
return EfiCreateEventLegacyBootEx (
NULL,
);
}
/**
Create an EFI event in the Legacy Boot Event Group and allows
the caller to specify a notification function.
This function abstracts the creation of the Legacy Boot Event.
The Framework moved from a proprietary to UEFI 2.0 based mechanism.
This library abstracts the caller from how this event is created to prevent
to code form having to change with the version of the specification supported.
If LegacyBootEvent is NULL, then ASSERT().
@param NotifyTpl The task priority level of the event.
@param NotifyFunction The notification function to call when the event is signaled.
@param NotifyContext The content to pass to NotifyFunction when the event is signaled.
@param LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).
@retval EFI_SUCCESS Event was created.
@retval Other Event was not created.
**/
)
{
//
// prior to UEFI 2.0 use Tiano extension to EFI
//
);
} else {
//
// For UEFI 2.0 and the future use an Event Group
//
);
}
return Status;
}
/**
Create a Read to Boot Event.
Tiano extended the CreateEvent Type enum to add a ready to boot event type.
This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was
added and now it's possible to not voilate the UEFI specification and use
the ready to boot event class defined in UEFI 2.0. This library supports
work both ways.
@param ReadyToBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).
@retval EFI_SUCCESS Event was created.
@retval Other Event was not created.
**/
)
{
return EfiCreateEventReadyToBootEx (
NULL,
);
}
/**
Create an EFI event in the Ready To Boot Event Group and allows
the caller to specify a notification function.
This function abstracts the creation of the Ready to Boot Event.
The Framework moved from a proprietary to UEFI 2.0 based mechanism.
This library abstracts the caller from how this event is created to prevent
to code form having to change with the version of the specification supported.
If ReadyToBootEvent is NULL, then ASSERT().
@param NotifyTpl The task priority level of the event.
@param NotifyFunction The notification function to call when the event is signaled.
@param NotifyContext The content to pass to NotifyFunction when the event is signaled.
@param ReadyToBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex).
@retval EFI_SUCCESS Event was created.
@retval Other Event was not created.
**/
)
{
//
// prior to UEFI 2.0 use Tiano extension to EFI
//
);
} else {
//
// For UEFI 2.0 and the future use an Event Group
//
);
}
return Status;
}
/**
Signal a Ready to Boot Event.
Create a Ready to Boot Event. Signal it and close it. This causes other
events of the same event group to be signaled in other modules.
**/
)
{
}
}
/**
Signal a Legacy Boot Event.
Create a legacy Boot Event. Signal it and close it. This causes other
events of the same event group to be signaled in other modules.
**/
)
{
}
}
/**
Check to see if the Firmware Volume (FV) Media Device Path is valid
Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum
so as we move to UEFI 2.0 support we must use a mechanism that conforms with
the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed
device path is defined for Tiano extensions of device path. If the code
is compiled to conform with the UEFI 2.0 specification use the new device path
else use the old form for backwards compatability. The return value to this
function points to a location in FvDevicePathNode and it does not allocate
new memory for the GUID pointer that is returned.
@param FvDevicePathNode Pointer to FV device path to check.
@retval NULL FvDevicePathNode is not valid.
@retval Other FvDevicePathNode is valid and pointer to NameGuid was returned.
**/
EFI_GUID *
)
{
//
// EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10.
// In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with
// EFI 1.10 and UEFI 2.10.
//
}
return NULL;
}
/**
Initialize a Firmware Volume (FV) Media Device Path node.
Tiano extended the EFI 1.10 device path nodes. Tiano does not own this enum
so as we move to UEFI 2.0 support we must use a mechanism that conforms with
the UEFI 2.0 specification to define the FV device path. An UEFI GUIDed
device path is defined for Tiano extensions of device path. If the code
is compiled to conform with the UEFI 2.0 specification use the new device path
else use the old form for backwards compatability.
@param FvDevicePathNode Pointer to a FV device path node to initialize
@param NameGuid FV file name to use in FvDevicePathNode
**/
)
{
//
// EFI Specification extension on Media Device Path. MEDIA_FW_VOL_FILEPATH_DEVICE_PATH is adopted by UEFI later and added in UEFI2.10.
// In EdkCompatibility Package, we only support MEDIA_FW_VOL_FILEPATH_DEVICE_PATH that complies with
// EFI 1.10 and UEFI 2.10.
//
}