--- /dev/null
+/** @file\r
+ Entry point to a EFI/DXE driver.\r
+\r
+Copyright (c) 2006, Intel Corporation<BR>\r
+All rights reserved. This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+\r
+EFI_EVENT _mDriverExitBootServicesNotifyEvent;\r
+\r
+/**\r
+ Unload function that is registered in the LoadImage protocol. It un-installs\r
+ protocols produced and deallocates pool used by the driver. Called by the core\r
+ when unloading the driver.\r
+\r
+ @param ImageHandle\r
+\r
+ @retval EFI_SUCCESS\r
+\r
+**/\r
+STATIC\r
+EFI_STATUS\r
+EFIAPI\r
+_DriverUnloadHandler (\r
+ EFI_HANDLE ImageHandle\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+\r
+ //\r
+ // If an UnloadImage() handler is specified, then call it\r
+ //\r
+ Status = ProcessModuleUnloadList (ImageHandle);\r
+\r
+ //\r
+ // If the driver specific unload handler does not return an error, then call all of the\r
+ // library destructors. If the unload handler returned an error, then the driver can not be\r
+ // unloaded, and the library destructors should not be called\r
+ //\r
+ if (!EFI_ERROR (Status)) {\r
+ //\r
+ // Close our ExitBootServices () notify function\r
+ //\r
+ if (_gDriverExitBootServicesEvent[0] != NULL) {\r
+ Status = gBS->CloseEvent (_mDriverExitBootServicesNotifyEvent);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ ProcessLibraryDestructorList (ImageHandle, gST);\r
+ }\r
+\r
+ //\r
+ // Return the status from the driver specific unload handler\r
+ //\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Notification Entry of ExitBootService event. In the entry, all notifications in _gDriverExitBootServicesEvent[] \r
+ would be invoked.\r
+\r
+ @param Event The Event that is being processed.\r
+ @param Context Event Context.\r
+\r
+**/\r
+STATIC\r
+VOID\r
+EFIAPI\r
+_DriverExitBootServices (\r
+ IN EFI_EVENT Event,\r
+ IN VOID *Context\r
+ )\r
+{\r
+ EFI_EVENT_NOTIFY ChildNotifyEventHandler;\r
+ UINTN Index;\r
+\r
+ for (Index = 0; _gDriverExitBootServicesEvent[Index] != NULL; Index++) {\r
+ ChildNotifyEventHandler = _gDriverExitBootServicesEvent[Index];\r
+ ChildNotifyEventHandler (Event, NULL);\r
+ }\r
+}\r
+\r
+/**\r
+ Enrty point to DXE Driver.\r
+\r
+ @param ImageHandle ImageHandle of the loaded driver.\r
+ @param SystemTable Pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS One or more of the drivers returned a success code.\r
+ @retval !EFI_SUCESS The return status from the last driver entry point in the list.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+_ModuleEntryPoint (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r
+\r
+ if (_gUefiDriverRevision != 0) {\r
+ //\r
+ // Make sure that the EFI/UEFI spec revision of the platform is >= EFI/UEFI spec revision of the driver\r
+ //\r
+ if (SystemTable->Hdr.Revision < _gUefiDriverRevision) {\r
+ return EFI_INCOMPATIBLE_VERSION;\r
+ }\r
+ }\r
+\r
+ //\r
+ // Call constructor for all libraries\r
+ //\r
+ ProcessLibraryConstructorList (ImageHandle, SystemTable);\r
+\r
+ //\r
+ // Register our ExitBootServices () notify function\r
+ //\r
+ if (_gDriverExitBootServicesEvent[0] != NULL) {\r
+ Status = gBS->CreateEvent (\r
+ EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,\r
+ EFI_TPL_NOTIFY,\r
+ _DriverExitBootServices,\r
+ NULL,\r
+ &_mDriverExitBootServicesNotifyEvent\r
+ );\r
+\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ //\r
+ // Install unload handler...\r
+ //\r
+ if (_gDriverUnloadImageCount != 0) {\r
+ Status = gBS->HandleProtocol (\r
+ ImageHandle,\r
+ &gEfiLoadedImageProtocolGuid,\r
+ (VOID **)&LoadedImage\r
+ );\r
+ ASSERT_EFI_ERROR (Status);\r
+ LoadedImage->Unload = _DriverUnloadHandler;\r
+ }\r
+\r
+ //\r
+ // Call the driver entry point\r
+ //\r
+ Status = ProcessModuleEntryPointList (ImageHandle, SystemTable);\r
+\r
+ //\r
+ // If all of the drivers returned errors, then invoke all of the library destructors\r
+ //\r
+ if (EFI_ERROR (Status)) {\r
+ //\r
+ // Close our ExitBootServices () notify function\r
+ //\r
+ if (_gDriverExitBootServicesEvent[0] != NULL) {\r
+ Status = gBS->CloseEvent (_mDriverExitBootServicesNotifyEvent);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+\r
+ ProcessLibraryDestructorList (ImageHandle, SystemTable);\r
+ }\r
+\r
+ //\r
+ // Return the cummalative return status code from all of the driver entry points\r
+ //\r
+ return Status;\r
+}\r
+\r
+\r
+/**\r
+ Enrty point wrapper of DXE Driver.\r
+\r
+ @param ImageHandle ImageHandle of the loaded driver.\r
+ @param SystemTable Pointer to the EFI System Table.\r
+\r
+ @retval EFI_SUCCESS One or more of the drivers returned a success code.\r
+ @retval !EFI_SUCESS The return status from the last driver entry point in the list.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+EfiMain (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+{\r
+ return _ModuleEntryPoint (ImageHandle, SystemTable);\r
+}\r
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