diff options
Diffstat (limited to 'MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatformDriOverride.c')
| -rw-r--r-- | MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatformDriOverride.c | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatformDriOverride.c b/MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatformDriOverride.c deleted file mode 100644 index 2a189138ed..0000000000 --- a/MdeModulePkg/Universal/PlatformDriOverrideDxe/PlatformDriOverride.c +++ /dev/null @@ -1,186 +0,0 @@ -/** @file
-
-Copyright (c) 2007, 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.
-
-Module Name:
-
- PlatformDriOverride.c
-
-Abstract:
-
-
-**/
-
-
-#include "PlatformDriOverride.h"
-
-EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL gPlatformDriverOverride = {
- GetDriver,
- GetDriverPath,
- DriverLoaded
-};
-
-STATIC LIST_ENTRY mMappingDataBase = INITIALIZE_LIST_HEAD_VARIABLE (mMappingDataBase);
-STATIC BOOLEAN mEnvironmentVariableRead = FALSE;
-STATIC EFI_HANDLE mCallerImageHandle;
-
-
-EFI_STATUS
-EFIAPI
-PlatformDriverOverrideEntry (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-/*++
-
-Routine Description:
- Platform Driver Override driver entry point, install the Platform Driver Override Protocol
-
-Arguments:
- (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
-
-Returns:
- EFI_STATUS
-
---*/
-{
- mEnvironmentVariableRead = FALSE;
- mCallerImageHandle = ImageHandle;
- InitializeListHead (&mMappingDataBase);
- return InstallPlatformDriverOverrideProtocol (&gPlatformDriverOverride);
-}
-
-
-/**
- Retrieves the image handle of the platform override driver for a controller in the system.
-
- @param This A pointer to the
- EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL instance.
- @param ControllerHandle The device handle of the controller to check if a
- driver override exists.
- @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 for ControllerHandle.
-
- @retval EFI_SUCCESS The driver override for ControllerHandle was
- returned in DriverImageHandle.
- @retval EFI_NOT_FOUND A driver override for ControllerHandle was not
- found.
- @retval EFI_INVALID_PARAMETER The handle specified by ControllerHandle is not a
- valid handle. DriverImageHandle is not a handle
- that was returned on a previous call to
- GetDriver().
-
-**/
-STATIC
-EFI_STATUS
-EFIAPI
-GetDriver (
- IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
- IN EFI_HANDLE ControllerHandle,
- IN OUT EFI_HANDLE * DriverImageHandle
- )
-{
- EFI_STATUS Status;
- //
- // Check that ControllerHandle is a valid handle
- //
- if (ControllerHandle == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- //
- // Read the environment variable(s) that contain the override mappings from Controller Device Path to
- // a set of Driver Device Paths, and initialize in memory database of the overrides that map Controller
- // Device Paths to an ordered set of Driver Device Paths and Driver Handles. This action is only performed
- // once and finished in first call.
- //
- if (!mEnvironmentVariableRead) {
- mEnvironmentVariableRead = TRUE;
-
- Status = InitOverridesMapping (&mMappingDataBase);
- if (Status == EFI_NOT_FOUND) {
- InitializeListHead (&mMappingDataBase);
- return EFI_NOT_FOUND;
- } else if (Status == EFI_VOLUME_CORRUPTED){
- DEBUG ((DEBUG_ERROR, "Platform Driver Override Variable is corrupt\n"));
- //
- // The environment variable(s) that contain the override mappings from Controller Device Path to
- // a set of Driver Device Paths is corrupted, platform code can use LibDeleteOverridesVariables to
- // delete all orverride variables as a policy. Here can be IBV/OEM customized.
- //
-
- //LibDeleteOverridesVariables();
- InitializeListHead (&mMappingDataBase);
- return EFI_NOT_FOUND;
- } else if (EFI_ERROR (Status)){
- InitializeListHead (&mMappingDataBase);
- return EFI_NOT_FOUND;
- }
- }
- //
- // if the environment variable does not exist or the variable appears to be corrupt, just return not found
- //
- if (IsListEmpty (&mMappingDataBase)) {
- return EFI_NOT_FOUND;
- }
-
- return GetDriverFromMapping (
- This,
- ControllerHandle,
- DriverImageHandle,
- &mMappingDataBase,
- mCallerImageHandle
- );
-
-}
-
-
-/**
- For the use of the ControllerHandle parameter in the GetDriverPath() and DriverLoaded() APIs
- makes those APIs very difficult to use, so not support.
-
-
-
-**/
-STATIC
-EFI_STATUS
-EFIAPI
-GetDriverPath (
- IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
- IN EFI_HANDLE ControllerHandle,
- IN OUT EFI_DEVICE_PATH_PROTOCOL **DriverImagePath
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-
-/**
- For the use of the ControllerHandle parameter in the GetDriverPath() and DriverLoaded() APIs
- makes those APIs very difficult to use, so not support.
-
-
-
-**/
-STATIC
-EFI_STATUS
-EFIAPI
-DriverLoaded (
- IN EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL * This,
- IN EFI_HANDLE ControllerHandle,
- IN EFI_DEVICE_PATH_PROTOCOL * DriverImagePath,
- IN EFI_HANDLE DriverImageHandle
- )
-{
- return EFI_UNSUPPORTED;
-}
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