--- /dev/null
+/** @file\r
+ Ihe internal heder file includes the required Protocol/Guid/Library\r
+ and the shared function APIs.\r
+\r
+Copyright (c) 2007 - 2009, Intel Corporation\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
+#ifndef _INTERNAL_PLATFORM_DRIVER_OVERRIDE_H_\r
+#define _INTERNAL_PLATFORM_DRIVER_OVERRIDE_H_\r
+\r
+#include <PiDxe.h>\r
+\r
+#include <Protocol/HiiConfigAccess.h>\r
+#include <Protocol/HiiConfigRouting.h>\r
+#include <Protocol/HiiDatabase.h>\r
+#include <Protocol/FormBrowser2.h>\r
+#include <Protocol/LoadedImage.h>\r
+#include <Protocol/FirmwareVolume2.h>\r
+#include <Protocol/PciIo.h>\r
+#include <Protocol/BusSpecificDriverOverride.h>\r
+#include <Protocol/ComponentName2.h>\r
+#include <Protocol/ComponentName.h>\r
+#include <Protocol/DriverBinding.h>\r
+#include <Protocol/DevicePathToText.h>\r
+#include <Protocol/DevicePath.h>\r
+#include <Protocol/PlatformDriverOverride.h>\r
+#include <Guid/MdeModuleHii.h>\r
+#include <Guid/VariableFormat.h>\r
+\r
+#include <Library/BaseLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/UefiLib.h>\r
+#include <Library/PrintLib.h>\r
+#include <Library/UefiDriverEntryPoint.h>\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/UefiRuntimeServicesTableLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/DevicePathLib.h>\r
+#include <Library/DxeServicesTableLib.h>\r
+#include <Library/HiiLib.h>\r
+\r
+/**\r
+ Free all the mapping database memory resource and initialize the mapping list entry.\r
+\r
+ @param MappingDataBase Mapping database list entry pointer\r
+\r
+ @retval EFI_INVALID_PARAMETER mapping database list entry is NULL\r
+ @retval EFI_SUCCESS Free success\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+FreeMappingDatabase (\r
+ IN OUT LIST_ENTRY *MappingDataBase\r
+ )\r
+;
+\r
+/**\r
+ Read the NV environment variable(s) that contain the override mappings from Controller Device Path to\r
+ a set of Driver Device Paths, and create the mapping database in memory to contain these variable info.\r
+\r
+ @param MappingDataBase Mapping database list entry pointer\r
+\r
+ @retval EFI_INVALID_PARAMETER MappingDataBase pointer is null\r
+ @retval EFI_NOT_FOUND Cannot find the 'PlatDriOver' NV variable\r
+ @retval EFI_VOLUME_CORRUPTED The found NV variable is corrupted\r
+ @retval EFI_SUCCESS Create the mapping database in memory successfully\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+InitOverridesMapping (\r
+ OUT LIST_ENTRY *MappingDataBase\r
+ )\r
+;
+\r
+/**\r
+ Save the memory mapping database into NV environment variable(s).\r
+ If MappingDataBase list is empty, then delete all platform override NV variables.\r
+\r
+ @param MappingDataBase Mapping database list entry pointer\r
+\r
+ @retval EFI_INVALID_PARAMETER MappingDataBase pointer is null\r
+ @retval EFI_SUCCESS Save memory mapping database successfully\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SaveOverridesMapping (\r
+ IN LIST_ENTRY *MappingDataBase\r
+ )\r
+;
+\r
+/**\r
+ Retrieves the image handle of the platform override driver for a controller in the system from the memory mapping database.\r
+\r
+ @param ControllerHandle The device handle of the controller to check if\r
+ a driver override exists.\r
+ @param DriverImageHandle On output, a pointer to the next driver handle.\r
+ Passing in a pointer to NULL, will return the\r
+ first driver handle for ControllerHandle.\r
+ @param MappingDataBase MappingDataBase - Mapping database list entry\r
+ pointer\r
+ @param CallerImageHandle The caller driver's image handle, for\r
+ UpdateFvFileDevicePath use.\r
+\r
+ @retval EFI_INVALID_PARAMETER The handle specified by ControllerHandle is not\r
+ a valid handle. Or DriverImagePath is not a\r
+ device path that was returned on a previous call\r
+ to GetDriverPath().\r
+ @retval EFI_NOT_FOUND A driver override for ControllerHandle was not\r
+ found.\r
+ @retval EFI_UNSUPPORTED The operation is not supported.\r
+ @retval EFI_SUCCESS The driver override for ControllerHandle was\r
+ returned in DriverImagePath.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+GetDriverFromMapping (\r
+ IN EFI_HANDLE ControllerHandle,\r
+ IN OUT EFI_HANDLE *DriverImageHandle,\r
+ IN LIST_ENTRY *MappingDataBase,\r
+ IN EFI_HANDLE CallerImageHandle\r
+ )\r
+;
+\r
+/**\r
+ Check mapping database whether already has the mapping info which\r
+ records the input Controller to input DriverImage.\r
+\r
+ @param ControllerDevicePath The controller device path is to be check.\r
+ @param DriverImageDevicePath The driver image device path is to be check.\r
+ @param MappingDataBase Mapping database list entry pointer\r
+ @param DriverInfoNum the controller's total override driver number\r
+ @param DriverImageNO The driver order number for the input DriverImage.\r
+ If the DriverImageDevicePath is NULL, DriverImageNO is not set.\r
+\r
+ @retval EFI_INVALID_PARAMETER ControllerDevicePath or MappingDataBase is NULL.\r
+ @retval EFI_NOT_FOUND ControllerDevicePath is not found in MappingDataBase or\r
+ DriverImageDevicePath is not found in the found DriverImage Info list. \r
+ @retval EFI_SUCCESS The controller's total override driver number and \r
+ input DriverImage's order number is correctly return.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+CheckMapping (\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ControllerDevicePath,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *DriverImageDevicePath OPTIONAL,\r
+ IN LIST_ENTRY *MappingDataBase,\r
+ OUT UINT32 *DriverInfoNum OPTIONAL,\r
+ OUT UINT32 *DriverImageNO OPTIONAL\r
+ )\r
+;
+\r
+/**\r
+ Insert a driver image as a controller's override driver into the mapping database.\r
+ The driver image's order number is indicated by DriverImageNO.\r
+\r
+ @param ControllerDevicePath The controller device path need to add a\r
+ override driver image item\r
+ @param DriverImageDevicePath The driver image device path need to be insert\r
+ @param MappingDataBase Mapping database list entry pointer\r
+ @param DriverImageNO The inserted order number. If this number is taken, \r
+ the larger available number will be used.\r
+\r
+ @retval EFI_INVALID_PARAMETER ControllerDevicePath is NULL, or DriverImageDevicePath is NULL\r
+ or MappingDataBase is NULL\r
+ @retval EFI_ALREADY_STARTED The input Controller to input DriverImage has been \r
+ recorded into the mapping database.\r
+ @retval EFI_SUCCESS The Controller and DriverImage are inserted into \r
+ the mapping database successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+InsertDriverImage (\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ControllerDevicePath,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *DriverImageDevicePath,\r
+ IN LIST_ENTRY *MappingDataBase,\r
+ IN UINT32 DriverImageNO\r
+ )\r
+;
+\r
+/**\r
+ Delete a controller's override driver from the mapping database.\r
+\r
+ @param ControllerDevicePath The controller device path will be deleted \r
+ when all drivers images on it are removed.\r
+ @param DriverImageDevicePath The driver image device path will be delete.\r
+ If NULL, all driver image will be delete.\r
+ @param MappingDataBase Mapping database list entry pointer\r
+\r
+ @retval EFI_INVALID_PARAMETER ControllerDevicePath is NULL, or MappingDataBase is NULL\r
+ @retval EFI_NOT_FOUND ControllerDevicePath is not found in MappingDataBase or\r
+ DriverImageDevicePath is not found in the found DriverImage Info list. \r
+ @retval EFI_SUCCESS Delete the specified driver successfully.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+DeleteDriverImage (\r
+ IN EFI_DEVICE_PATH_PROTOCOL *ControllerDevicePath,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *DriverImageDevicePath,\r
+ IN LIST_ENTRY *MappingDataBase\r
+ )\r
+;
+\r
+#endif\r
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