diff options
Diffstat (limited to 'OldMdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c')
| -rw-r--r-- | OldMdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/OldMdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c b/OldMdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c new file mode 100644 index 0000000000..9ec19e3f4a --- /dev/null +++ b/OldMdePkg/Library/UefiDriverEntryPoint/DriverEntryPoint.c @@ -0,0 +1,198 @@ +/** @file
+ Entry point to a EFI/DXE driver.
+
+Copyright (c) 2006, Intel Corporation<BR>
+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.
+
+**/
+
+
+EFI_EVENT _mDriverExitBootServicesNotifyEvent;
+
+/**
+ Unload function that is registered in the LoadImage protocol. It un-installs
+ protocols produced and deallocates pool used by the driver. Called by the core
+ when unloading the driver.
+
+ @param ImageHandle
+
+ @retval EFI_SUCCESS
+
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+_DriverUnloadHandler (
+ EFI_HANDLE ImageHandle
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // If an UnloadImage() handler is specified, then call it
+ //
+ Status = ProcessModuleUnloadList (ImageHandle);
+
+ //
+ // If the driver specific unload handler does not return an error, then call all of the
+ // library destructors. If the unload handler returned an error, then the driver can not be
+ // unloaded, and the library destructors should not be called
+ //
+ if (!EFI_ERROR (Status)) {
+ //
+ // Close our ExitBootServices () notify function
+ //
+ if (_gDriverExitBootServicesEvent[0] != NULL) {
+ Status = gBS->CloseEvent (_mDriverExitBootServicesNotifyEvent);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ ProcessLibraryDestructorList (ImageHandle, gST);
+ }
+
+ //
+ // Return the status from the driver specific unload handler
+ //
+ return Status;
+}
+
+
+/**
+ Notification Entry of ExitBootService event. In the entry, all notifications in _gDriverExitBootServicesEvent[]
+ would be invoked.
+
+ @param Event The Event that is being processed.
+ @param Context Event Context.
+
+**/
+STATIC
+VOID
+EFIAPI
+_DriverExitBootServices (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_EVENT_NOTIFY ChildNotifyEventHandler;
+ UINTN Index;
+
+ for (Index = 0; _gDriverExitBootServicesEvent[Index] != NULL; Index++) {
+ ChildNotifyEventHandler = _gDriverExitBootServicesEvent[Index];
+ ChildNotifyEventHandler (Event, NULL);
+ }
+}
+
+/**
+ Enrty point to DXE Driver.
+
+ @param ImageHandle ImageHandle of the loaded driver.
+ @param SystemTable Pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS One or more of the drivers returned a success code.
+ @retval !EFI_SUCESS The return status from the last driver entry point in the list.
+
+**/
+EFI_STATUS
+EFIAPI
+_ModuleEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
+
+ if (_gUefiDriverRevision != 0) {
+ //
+ // Make sure that the EFI/UEFI spec revision of the platform is >= EFI/UEFI spec revision of the driver
+ //
+ if (SystemTable->Hdr.Revision < _gUefiDriverRevision) {
+ return EFI_INCOMPATIBLE_VERSION;
+ }
+ }
+
+ //
+ // Call constructor for all libraries
+ //
+ ProcessLibraryConstructorList (ImageHandle, SystemTable);
+
+ //
+ // Register our ExitBootServices () notify function
+ //
+ if (_gDriverExitBootServicesEvent[0] != NULL) {
+ Status = gBS->CreateEvent (
+ EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,
+ EFI_TPL_NOTIFY,
+ _DriverExitBootServices,
+ NULL,
+ &_mDriverExitBootServicesNotifyEvent
+ );
+
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ //
+ // Install unload handler...
+ //
+ if (_gDriverUnloadImageCount != 0) {
+ Status = gBS->HandleProtocol (
+ ImageHandle,
+ &gEfiLoadedImageProtocolGuid,
+ (VOID **)&LoadedImage
+ );
+ ASSERT_EFI_ERROR (Status);
+ LoadedImage->Unload = _DriverUnloadHandler;
+ }
+
+ //
+ // Call the driver entry point
+ //
+ Status = ProcessModuleEntryPointList (ImageHandle, SystemTable);
+
+ //
+ // If all of the drivers returned errors, then invoke all of the library destructors
+ //
+ if (EFI_ERROR (Status)) {
+ //
+ // Close our ExitBootServices () notify function
+ //
+ if (_gDriverExitBootServicesEvent[0] != NULL) {
+ Status = gBS->CloseEvent (_mDriverExitBootServicesNotifyEvent);
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ ProcessLibraryDestructorList (ImageHandle, SystemTable);
+ }
+
+ //
+ // Return the cummalative return status code from all of the driver entry points
+ //
+ return Status;
+}
+
+
+/**
+ Enrty point wrapper of DXE Driver.
+
+ @param ImageHandle ImageHandle of the loaded driver.
+ @param SystemTable Pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS One or more of the drivers returned a success code.
+ @retval !EFI_SUCESS The return status from the last driver entry point in the list.
+
+**/
+EFI_STATUS
+EFIAPI
+EfiMain (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ return _ModuleEntryPoint (ImageHandle, SystemTable);
+}
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