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Diffstat (limited to 'Core/IntelFrameworkPkg/Library/FrameworkUefiLib/UefiNotTiano.c')
| -rw-r--r-- | Core/IntelFrameworkPkg/Library/FrameworkUefiLib/UefiNotTiano.c | 348 |
1 files changed, 348 insertions, 0 deletions
diff --git a/Core/IntelFrameworkPkg/Library/FrameworkUefiLib/UefiNotTiano.c b/Core/IntelFrameworkPkg/Library/FrameworkUefiLib/UefiNotTiano.c new file mode 100644 index 0000000000..2f8b1807fd --- /dev/null +++ b/Core/IntelFrameworkPkg/Library/FrameworkUefiLib/UefiNotTiano.c @@ -0,0 +1,348 @@ +/** @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
+ (EDK/EFI 1.10) and new (EDK II/UEFI 2.0) way. This module is a DXE driver as
+ 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
+http://opensource.org/licenses/bsd-license.php
+
+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.
+
+**/
+VOID
+EFIAPI
+InternalEmptyFuntion (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ 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
+ the EDK/EFI 1.10 form and EDK II/UEFI 2.0 form and allows common code to
+ 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.
+
+**/
+EFI_STATUS
+EFIAPI
+EfiCreateEventLegacyBoot (
+ OUT EFI_EVENT *LegacyBootEvent
+ )
+{
+ return EfiCreateEventLegacyBootEx (
+ TPL_CALLBACK,
+ InternalEmptyFuntion,
+ NULL,
+ LegacyBootEvent
+ );
+}
+
+/**
+ 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.
+
+**/
+EFI_STATUS
+EFIAPI
+EfiCreateEventLegacyBootEx (
+ IN EFI_TPL NotifyTpl,
+ IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL
+ IN VOID *NotifyContext, OPTIONAL
+ OUT EFI_EVENT *LegacyBootEvent
+ )
+{
+ EFI_STATUS Status;
+
+ ASSERT (LegacyBootEvent != NULL);
+
+ if (gST->Hdr.Revision < 0x00020000) {
+ //
+ // prior to UEFI 2.0 use Tiano extension to EFI
+ //
+ Status = gBS->CreateEvent (
+ EFI_EVENT_SIGNAL_LEGACY_BOOT | EVT_NOTIFY_SIGNAL,
+ NotifyTpl,
+ NotifyFunction,
+ NotifyContext,
+ LegacyBootEvent
+ );
+ } else {
+ //
+ // For UEFI 2.0 and the future use an Event Group
+ //
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ NotifyTpl,
+ NotifyFunction,
+ NotifyContext,
+ &gEfiEventLegacyBootGuid,
+ LegacyBootEvent
+ );
+ }
+
+ 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
+ the EDK/EFI 1.10 form and EDK II/UEFI 2.0 form and allows common code to
+ 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.
+
+**/
+EFI_STATUS
+EFIAPI
+EfiCreateEventReadyToBoot (
+ OUT EFI_EVENT *ReadyToBootEvent
+ )
+{
+ return EfiCreateEventReadyToBootEx (
+ TPL_CALLBACK,
+ InternalEmptyFuntion,
+ NULL,
+ ReadyToBootEvent
+ );
+}
+
+/**
+ 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.
+
+**/
+EFI_STATUS
+EFIAPI
+EfiCreateEventReadyToBootEx (
+ IN EFI_TPL NotifyTpl,
+ IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL
+ IN VOID *NotifyContext, OPTIONAL
+ OUT EFI_EVENT *ReadyToBootEvent
+ )
+{
+ EFI_STATUS Status;
+
+ ASSERT (ReadyToBootEvent != NULL);
+
+ if (gST->Hdr.Revision < 0x00020000) {
+ //
+ // prior to UEFI 2.0 use Tiano extension to EFI
+ //
+ Status = gBS->CreateEvent (
+ EFI_EVENT_SIGNAL_READY_TO_BOOT | EFI_EVENT_NOTIFY_SIGNAL_ALL,
+ NotifyTpl,
+ NotifyFunction,
+ NotifyContext,
+ ReadyToBootEvent
+ );
+ } else {
+ //
+ // For UEFI 2.0 and the future use an Event Group
+ //
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ NotifyTpl,
+ NotifyFunction,
+ NotifyContext,
+ &gEfiEventReadyToBootGuid,
+ ReadyToBootEvent
+ );
+ }
+
+ 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.
+
+**/
+VOID
+EFIAPI
+EfiSignalEventReadyToBoot (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_EVENT ReadyToBootEvent;
+
+ Status = EfiCreateEventReadyToBoot (&ReadyToBootEvent);
+ if (!EFI_ERROR (Status)) {
+ gBS->SignalEvent (ReadyToBootEvent);
+ gBS->CloseEvent (ReadyToBootEvent);
+ }
+}
+
+/**
+ 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.
+
+**/
+VOID
+EFIAPI
+EfiSignalEventLegacyBoot (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ EFI_EVENT LegacyBootEvent;
+
+ Status = EfiCreateEventLegacyBoot (&LegacyBootEvent);
+ if (!EFI_ERROR (Status)) {
+ gBS->SignalEvent (LegacyBootEvent);
+ gBS->CloseEvent (LegacyBootEvent);
+ }
+}
+
+
+/**
+ 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 *
+EFIAPI
+EfiGetNameGuidFromFwVolDevicePathNode (
+ IN CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode
+ )
+{
+ ASSERT (FvDevicePathNode != NULL);
+
+ //
+ // 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.
+ //
+ if (DevicePathType (&FvDevicePathNode->Header) == MEDIA_DEVICE_PATH &&
+ DevicePathSubType (&FvDevicePathNode->Header) == MEDIA_PIWG_FW_FILE_DP) {
+ return (EFI_GUID *) &FvDevicePathNode->FvFileName;
+ }
+
+ 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
+
+**/
+VOID
+EFIAPI
+EfiInitializeFwVolDevicepathNode (
+ IN OUT MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode,
+ IN CONST EFI_GUID *NameGuid
+ )
+{
+ ASSERT (FvDevicePathNode != NULL);
+ ASSERT (NameGuid != NULL);
+
+ //
+ // 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.
+ //
+ FvDevicePathNode->Header.Type = MEDIA_DEVICE_PATH;
+ FvDevicePathNode->Header.SubType = MEDIA_PIWG_FW_FILE_DP;
+ SetDevicePathNodeLength (&FvDevicePathNode->Header, sizeof (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH));
+
+ CopyGuid (&FvDevicePathNode->FvFileName, NameGuid);
+}
+
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