git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5012 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -1,186 +0,0 @@
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/** @file
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Copyright (c) 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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PlatformDriOverride.c
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Abstract:
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**/
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#include "PlatformDriOverride.h"
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EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL gPlatformDriverOverride = {
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GetDriver,
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GetDriverPath,
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DriverLoaded
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};
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STATIC LIST_ENTRY mMappingDataBase = INITIALIZE_LIST_HEAD_VARIABLE (mMappingDataBase);
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STATIC BOOLEAN mEnvironmentVariableRead = FALSE;
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STATIC EFI_HANDLE mCallerImageHandle;
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EFI_STATUS
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EFIAPI
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PlatformDriverOverrideEntry (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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/*++
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Routine Description:
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Platform Driver Override driver entry point, install the Platform Driver Override Protocol
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Arguments:
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(Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
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Returns:
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EFI_STATUS
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--*/
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{
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mEnvironmentVariableRead = FALSE;
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mCallerImageHandle = ImageHandle;
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InitializeListHead (&mMappingDataBase);
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return InstallPlatformDriverOverrideProtocol (&gPlatformDriverOverride);
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}
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/**
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Retrieves the image handle of the platform override driver for a controller in the system.
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@param This A pointer to the
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EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL instance.
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@param ControllerHandle The device handle of the controller to check if a
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driver override exists.
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@param DriverImageHandle On input, a pointer to the previous driver image
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handle returned by GetDriver(). On output, a
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pointer to the next driver image handle. Passing
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in a NULL, will return the first driver image
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handle for ControllerHandle.
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@retval EFI_SUCCESS The driver override for ControllerHandle was
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returned in DriverImageHandle.
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@retval EFI_NOT_FOUND A driver override for ControllerHandle was not
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found.
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@retval EFI_INVALID_PARAMETER The handle specified by ControllerHandle is not a
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valid handle. DriverImageHandle is not a handle
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that was returned on a previous call to
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GetDriver().
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**/
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STATIC
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EFI_STATUS
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EFIAPI
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GetDriver (
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IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN OUT EFI_HANDLE * DriverImageHandle
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)
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{
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EFI_STATUS Status;
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//
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// Check that ControllerHandle is a valid handle
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//
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if (ControllerHandle == NULL) {
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return EFI_INVALID_PARAMETER;
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}
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//
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// Read the environment variable(s) that contain the override mappings from Controller Device Path to
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// a set of Driver Device Paths, and initialize in memory database of the overrides that map Controller
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// Device Paths to an ordered set of Driver Device Paths and Driver Handles. This action is only performed
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// once and finished in first call.
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//
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if (!mEnvironmentVariableRead) {
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mEnvironmentVariableRead = TRUE;
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Status = InitOverridesMapping (&mMappingDataBase);
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if (Status == EFI_NOT_FOUND) {
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InitializeListHead (&mMappingDataBase);
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return EFI_NOT_FOUND;
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} else if (Status == EFI_VOLUME_CORRUPTED){
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DEBUG ((DEBUG_ERROR, "Platform Driver Override Variable is corrupt\n"));
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//
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// The environment variable(s) that contain the override mappings from Controller Device Path to
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// a set of Driver Device Paths is corrupted, platform code can use LibDeleteOverridesVariables to
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// delete all orverride variables as a policy. Here can be IBV/OEM customized.
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//
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//LibDeleteOverridesVariables();
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InitializeListHead (&mMappingDataBase);
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return EFI_NOT_FOUND;
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} else if (EFI_ERROR (Status)){
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InitializeListHead (&mMappingDataBase);
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return EFI_NOT_FOUND;
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}
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}
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//
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// if the environment variable does not exist or the variable appears to be corrupt, just return not found
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//
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if (IsListEmpty (&mMappingDataBase)) {
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return EFI_NOT_FOUND;
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}
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return GetDriverFromMapping (
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This,
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ControllerHandle,
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DriverImageHandle,
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&mMappingDataBase,
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mCallerImageHandle
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);
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}
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/**
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For the use of the ControllerHandle parameter in the GetDriverPath() and DriverLoaded() APIs
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makes those APIs very difficult to use, so not support.
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**/
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STATIC
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EFI_STATUS
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EFIAPI
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GetDriverPath (
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IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN OUT EFI_DEVICE_PATH_PROTOCOL **DriverImagePath
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)
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{
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return EFI_UNSUPPORTED;
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}
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/**
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For the use of the ControllerHandle parameter in the GetDriverPath() and DriverLoaded() APIs
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makes those APIs very difficult to use, so not support.
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**/
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STATIC
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EFI_STATUS
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EFIAPI
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DriverLoaded (
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IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL * DriverImagePath,
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IN EFI_HANDLE DriverImageHandle
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)
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{
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return EFI_UNSUPPORTED;
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}
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@@ -1,58 +0,0 @@
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/** @file
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Copyright (c) 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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PlatformDriOverride.h
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Abstract:
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**/
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#ifndef PLATFORM_DRI_OVERRIDE_H_
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#define PLATFORM_DRI_OVERRIDE_H_
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#include <PiDxe.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/BaseLib.h>
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#include <Library/PlatDriOverLib.h>
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STATIC
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EFI_STATUS
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EFIAPI
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GetDriver (
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IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN OUT EFI_HANDLE * DriverImageHandle
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);
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STATIC
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EFI_STATUS
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EFIAPI
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GetDriverPath (
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IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN OUT EFI_DEVICE_PATH_PROTOCOL **DriverImagePath
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);
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STATIC
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EFI_STATUS
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EFIAPI
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DriverLoaded (
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IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL * DriverImagePath,
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IN EFI_HANDLE DriverImageHandle
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);
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#endif
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@@ -1,48 +0,0 @@
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#/** @file
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# Component name for module PlatformDriOverride
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#
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# FIX ME!
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# Copyright (c) 2007, Intel Corporation. All rights reserved.
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#
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# All rights reserved. This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#
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#**/
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = PlatformDriOverrideDxe
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FILE_GUID = 35034CE2-A6E5-4fb4-BABE-A0156E9B2549
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MODULE_TYPE = DXE_DRIVER
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VERSION_STRING = 1.0
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EDK_RELEASE_VERSION = 0x00020000
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EFI_SPECIFICATION_VERSION = 0x00020000
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ENTRY_POINT = PlatformDriverOverrideEntry
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#
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# The following information is for reference only and not required by the build tools.
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#
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# VALID_ARCHITECTURES = IA32 X64 IPF EBC
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#
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[Sources.common]
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PlatformDriOverride.c
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PlatformDriOverride.h
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[Packages]
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MdePkg/MdePkg.dec
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MdeModulePkg/MdeModulePkg.dec
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[LibraryClasses]
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BaseLib
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UefiDriverEntryPoint
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DebugLib
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PlatDriOverLib
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<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<MsaHeader>
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<ModuleName>PlatformDriOverrideDxe</ModuleName>
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<ModuleType>DXE_DRIVER</ModuleType>
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<GuidValue>35034CE2-A6E5-4fb4-BABE-A0156E9B2549</GuidValue>
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<Version>1.0</Version>
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<Abstract>Component name for module PlatformDriOverride</Abstract>
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<Description>FIX ME!</Description>
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<Copyright>Copyright (c) 2007, Intel Corporation. All rights reserved.</Copyright>
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<License>All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.</License>
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<Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
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</MsaHeader>
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<ModuleDefinitions>
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<SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
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<BinaryModule>false</BinaryModule>
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<OutputFileBasename>PlatformDriOverrideDxe</OutputFileBasename>
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</ModuleDefinitions>
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<LibraryClassDefinitions>
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<LibraryClass Usage="ALWAYS_CONSUMED">
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<Keyword>DebugLib</Keyword>
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</LibraryClass>
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<LibraryClass Usage="ALWAYS_CONSUMED">
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<Keyword>UefiDriverEntryPoint</Keyword>
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</LibraryClass>
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<LibraryClass Usage="ALWAYS_CONSUMED">
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<Keyword>BaseLib</Keyword>
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</LibraryClass>
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</LibraryClassDefinitions>
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<SourceFiles>
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<Filename>PlatformDriOverride.h</Filename>
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<Filename>PlatformDriOverride.c</Filename>
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</SourceFiles>
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<PackageDependencies>
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<Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
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<Package PackageGuid="68169ab0-d41b-4009-9060-292c253ac43d"/>
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</PackageDependencies>
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<Externs>
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<Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
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<Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
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<Extern>
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<ModuleEntryPoint>PlatformDriverOverrideEntry</ModuleEntryPoint>
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</Extern>
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</Externs>
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</ModuleSurfaceArea>
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