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Diffstat (limited to 'EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/UefiNotTiano.c')
| -rw-r--r-- | EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/UefiNotTiano.c | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/UefiNotTiano.c b/EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/UefiNotTiano.c new file mode 100644 index 0000000..67438ed --- /dev/null +++ b/EDK/Foundation/Library/EdkIIGlueLib/Library/UefiLib/UefiNotTiano.c @@ -0,0 +1,366 @@ +/*++ + +Copyright (c) 2004 - 2009, Intel Corporation +All rights reserved. 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. + +Module Name: + + UefiNotTiano.c + +Abstract: + + Library functions that abstract areas of conflict between Tiano an UEFI 2.0. + + Help Port Framework/Tinao code that has conflicts with UEFI 2.0 by hiding the + oldconflicts with library functions and supporting implementations of the old + (R8.5/EFI 1.10) and new (EdkII/UEFI 2.0) way. + +--*/ + +#include "EdkIIGlueUefi.h" + +/** + An empty function to pass error checking of CreateEventEx (). + + This empty function ensures that EFI_EVENT_NOTIFY_SIGNAL_ALL is error + checked correctly since it is now mapped into CreateEventEx() in UEFI 2.0. + +**/ +STATIC +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 +GlueEfiCreateEventLegacyBoot ( + OUT EFI_EVENT *LegacyBootEvent + ) +{ + return EfiCreateEventLegacyBootEx ( + EFI_TPL_CALLBACK, + NULL, + 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; + UINT32 EventType; + EFI_EVENT_NOTIFY WorkerNotifyFunction; + + ASSERT (LegacyBootEvent != NULL); + +#if (EFI_SPECIFICATION_VERSION < 0x00020000) + + if (NotifyFunction == NULL) { + EventType = EFI_EVENT_SIGNAL_LEGACY_BOOT | EFI_EVENT_NOTIFY_SIGNAL_ALL; + } else { + EventType = EFI_EVENT_SIGNAL_LEGACY_BOOT; + } + WorkerNotifyFunction = NotifyFunction; + + // + // prior to UEFI 2.0 use Tiano extension to EFI + // + Status = gBS->CreateEvent ( + EventType, + NotifyTpl, + WorkerNotifyFunction, + NotifyContext, + LegacyBootEvent + ); +#else + + EventType = EVENT_NOTIFY_SIGNAL; + if (NotifyFunction == NULL) { + // + // CreatEventEx will check NotifyFunction is NULL or not + // + WorkerNotifyFunction = InternalEmptyFuntion; + } else { + WorkerNotifyFunction = NotifyFunction; + } + + // + // For UEFI 2.0 and the future use an Event Group + // + Status = gBS->CreateEventEx ( + EventType, + NotifyTpl, + WorkerNotifyFunction, + NotifyContext, + &gEfiEventLegacyBootGuid, + LegacyBootEvent + ); +#endif + + 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 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 +GlueEfiCreateEventReadyToBoot ( + OUT EFI_EVENT *ReadyToBootEvent + ) +{ + return EfiCreateEventReadyToBootEx ( + EFI_TPL_CALLBACK, + NULL, + 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 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 +EfiCreateEventReadyToBootEx ( + IN EFI_TPL NotifyTpl, + IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL + IN VOID *NotifyContext, OPTIONAL + OUT EFI_EVENT *ReadyToBootEvent + ) +{ + EFI_STATUS Status; + UINT32 EventType; + EFI_EVENT_NOTIFY WorkerNotifyFunction; + + ASSERT (ReadyToBootEvent != NULL); + +#if (EFI_SPECIFICATION_VERSION < 0x00020000) + + if (NotifyFunction == NULL) { + EventType = EFI_EVENT_SIGNAL_READY_TO_BOOT | EFI_EVENT_NOTIFY_SIGNAL_ALL; + } else { + EventType = EFI_EVENT_SIGNAL_READY_TO_BOOT; + } + WorkerNotifyFunction = NotifyFunction; + + // + // prior to UEFI 2.0 use Tiano extension to EFI + // + Status = gBS->CreateEvent ( + EventType, + NotifyTpl, + WorkerNotifyFunction, + NotifyContext, + ReadyToBootEvent + ); +#else + + EventType = EVENT_NOTIFY_SIGNAL; + + if (NotifyFunction == NULL) { + // + // CreatEventEx will check NotifyFunction is NULL or not + // + WorkerNotifyFunction = InternalEmptyFuntion; + } else { + WorkerNotifyFunction = NotifyFunction; + } + + // + // For UEFI 2.0 and the future use an Event Group + // + Status = gBS->CreateEventEx ( + EventType, + NotifyTpl, + WorkerNotifyFunction, + NotifyContext, + &gEfiEventReadyToBootGuid, + ReadyToBootEvent + ); +#endif + + 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 + + @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 +GlueEfiGetNameGuidFromFwVolDevicePathNode ( + IN CONST MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode + ) +{ + ASSERT (FvDevicePathNode != NULL); + + if (DevicePathType (&FvDevicePathNode->Header) == MEDIA_DEVICE_PATH && + DevicePathSubType (&FvDevicePathNode->Header) == MEDIA_FV_FILEPATH_DP) { + return (EFI_GUID *) &FvDevicePathNode->NameGuid; + } + + return NULL; +} + + +/** + Initialize a Firmware Volume (FV) Media Device Path node. + + @param FvDevicePathNode Pointer to a FV device path node to initialize + @param NameGuid FV file name to use in FvDevicePathNode + +**/ +VOID +EFIAPI +GlueEfiInitializeFwVolDevicepathNode ( + IN OUT MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *FvDevicePathNode, + IN CONST EFI_GUID *NameGuid + ) +{ + ASSERT (FvDevicePathNode != NULL); + ASSERT (NameGuid != NULL); + + FvDevicePathNode->Header.Type = MEDIA_DEVICE_PATH; + FvDevicePathNode->Header.SubType = MEDIA_FV_FILEPATH_DP; + SetDevicePathNodeLength (&FvDevicePathNode->Header, sizeof (MEDIA_FW_VOL_FILEPATH_DEVICE_PATH)); + + CopyGuid (&FvDevicePathNode->NameGuid, NameGuid); +} + |