1 files changed, 86 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h
new file mode 100644
index 0000000000..d28fb7f846
--- /dev/null
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDriverOverride.h
@@ -0,0 +1,86 @@
+/** @file
+  Functions declaration for Bus Specific Driver Override protoocl.
+
+Copyright (c) 2006 - 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.
+
+**/
+
+
+#ifndef _EFI_PCI_DRIVER_OVERRRIDE_H_
+#define _EFI_PCI_DRIVER_OVERRRIDE_H_
+
+#define DRIVER_OVERRIDE_SIGNATURE SIGNATURE_32 ('d', 'r', 'o', 'v')
+
+//
+// PCI driver override driver image list
+//
+typedef struct {
+  UINT32          Signature;
+  LIST_ENTRY      Link;
+  EFI_HANDLE      DriverImageHandle;
+} PCI_DRIVER_OVERRIDE_LIST;
+
+
+#define DRIVER_OVERRIDE_FROM_LINK(a) \
+  CR (a, PCI_DRIVER_OVERRIDE_LIST, Link, DRIVER_OVERRIDE_SIGNATURE)
+
+/**
+  Initializes a PCI Driver Override Instance.
+
+  @param  PciIoDevice   PCI Device instance.
+
+**/
+VOID
+InitializePciDriverOverrideInstance (
+  IN OUT PCI_IO_DEVICE          *PciIoDevice
+  );
+
+/**
+  Add an overriding driver image.
+
+  @param PciIoDevice        Instance of PciIo device.
+  @param DriverImageHandle  new added driver image.
+
+  @retval EFI_SUCCESS          Successfully added driver.
+  @retval EFI_OUT_OF_RESOURCES No memory resource for new driver instance.
+  @retval other                Some error occurred when locating gEfiLoadedImageProtocolGuid.
+
+**/
+EFI_STATUS
+AddDriver (
+  IN PCI_IO_DEVICE     *PciIoDevice,
+  IN EFI_HANDLE        DriverImageHandle
+  );
+
+
+/**
+  Uses a bus specific algorithm to retrieve a driver image handle for a controller.
+
+  @param  This                  A pointer to the EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL instance.
+  @param  DriverImageHandle     On input, a pointer to the previous driver image handle returned
+                                by GetDriver(). On output, a pointer to the next driver
+                                image handle. Passing in a NULL, will return the first driver
+                                image handle.
+
+  @retval EFI_SUCCESS           A bus specific override driver is returned in DriverImageHandle.
+  @retval EFI_NOT_FOUND         The end of the list of override drivers was reached.
+                                A bus specific override driver is not returned in DriverImageHandle.
+  @retval EFI_INVALID_PARAMETER DriverImageHandle is not a handle that was returned on a
+                                previous call to GetDriver().
+
+**/
+EFI_STATUS
+EFIAPI
+GetDriver (
+  IN EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL              *This,
+  IN OUT EFI_HANDLE                                         *DriverImageHandle
+  );
+
+#endif