diff options
Diffstat (limited to 'Platform/Intel/KabylakeOpenBoardPkg/Policy/Library/DxeSiliconPolicyUpdateLib/DxeGopPolicyInit.c')
| -rw-r--r-- | Platform/Intel/KabylakeOpenBoardPkg/Policy/Library/DxeSiliconPolicyUpdateLib/DxeGopPolicyInit.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/Platform/Intel/KabylakeOpenBoardPkg/Policy/Library/DxeSiliconPolicyUpdateLib/DxeGopPolicyInit.c b/Platform/Intel/KabylakeOpenBoardPkg/Policy/Library/DxeSiliconPolicyUpdateLib/DxeGopPolicyInit.c new file mode 100644 index 0000000000..e455208f80 --- /dev/null +++ b/Platform/Intel/KabylakeOpenBoardPkg/Policy/Library/DxeSiliconPolicyUpdateLib/DxeGopPolicyInit.c @@ -0,0 +1,181 @@ +/** @file
+ This file initialises and Installs GopPolicy Protocol.
+
+Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that 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.
+
+**/
+
+#include "DxeGopPolicyInit.h"
+#include <Protocol/GopPolicy.h>
+
+GLOBAL_REMOVE_IF_UNREFERENCED GOP_POLICY_PROTOCOL mGOPPolicy;
+GLOBAL_REMOVE_IF_UNREFERENCED UINT32 mVbtSize = 0;
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_PHYSICAL_ADDRESS mVbtAddress = 0;
+
+//
+// Function implementations
+//
+
+/**
+
+ @param[out] CurrentLidStatus
+
+ @retval EFI_SUCCESS
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+GetPlatformLidStatus (
+ OUT LID_STATUS *CurrentLidStatus
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+/**
+
+ @param[out] CurrentDockStatus
+
+ @retval EFI_SUCCESS
+ @retval EFI_UNSUPPORTED
+**/
+EFI_STATUS
+EFIAPI
+GetPlatformDockStatus (
+ OUT DOCK_STATUS CurrentDockStatus
+ )
+{
+ return EFI_UNSUPPORTED;
+}
+
+
+/**
+
+ @param[out] VbtAddress
+ @param[out] VbtSize
+
+ @retval EFI_SUCCESS
+ @retval EFI_NOT_FOUND
+**/
+EFI_STATUS
+EFIAPI
+GetVbtData (
+ OUT EFI_PHYSICAL_ADDRESS *VbtAddress,
+ OUT UINT32 *VbtSize
+ )
+{
+ EFI_STATUS Status;
+ UINTN FvProtocolCount;
+ EFI_HANDLE *FvHandles;
+ EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;
+ UINTN Index;
+ UINT32 AuthenticationStatus;
+ UINT8 *Buffer;
+ UINTN VbtBufferSize;
+
+
+ Status = EFI_NOT_FOUND;
+ if ( mVbtAddress == 0) {
+ Fv = NULL;
+
+ Buffer = 0;
+ FvHandles = NULL;
+ Status = gBS->LocateHandleBuffer (
+ ByProtocol,
+ &gEfiFirmwareVolume2ProtocolGuid,
+ NULL,
+ &FvProtocolCount,
+ &FvHandles
+ );
+ if (!EFI_ERROR (Status)) {
+ for (Index = 0; Index < FvProtocolCount; Index++) {
+ Status = gBS->HandleProtocol (
+ FvHandles[Index],
+ &gEfiFirmwareVolume2ProtocolGuid,
+ (VOID **) &Fv
+ );
+ VbtBufferSize = 0;
+ Status = Fv->ReadSection (
+ Fv,
+ PcdGetPtr (PcdGraphicsVbtGuid),
+ EFI_SECTION_RAW,
+ 0,
+ (VOID **) &Buffer,
+ &VbtBufferSize,
+ &AuthenticationStatus
+ );
+ if (!EFI_ERROR (Status)) {
+ *VbtAddress = (EFI_PHYSICAL_ADDRESS)Buffer;
+ *VbtSize = (UINT32)VbtBufferSize;
+ mVbtAddress = *VbtAddress;
+ mVbtSize = *VbtSize;
+ Status = EFI_SUCCESS;
+ break;
+ }
+ }
+ } else {
+ Status = EFI_NOT_FOUND;
+ }
+
+ if (FvHandles != NULL) {
+ FreePool (FvHandles);
+ FvHandles = NULL;
+ }
+ } else {
+ *VbtAddress = mVbtAddress;
+ *VbtSize = mVbtSize;
+ Status = EFI_SUCCESS;
+ }
+
+ return Status;
+}
+
+
+
+/**
+Initialize GOP DXE Policy
+
+@param[in] ImageHandle Image handle of this driver.
+
+@retval EFI_SUCCESS Initialization complete.
+@retval EFI_UNSUPPORTED The chipset is unsupported by this driver.
+@retval EFI_OUT_OF_RESOURCES Do not have enough resources to initialize the driver.
+@retval EFI_DEVICE_ERROR Device error, driver exits abnormally.
+**/
+
+EFI_STATUS
+EFIAPI
+GopPolicyInitDxe (
+ IN EFI_HANDLE ImageHandle
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Initialize the EFI Driver Library
+ //
+ SetMem (&mGOPPolicy, sizeof (GOP_POLICY_PROTOCOL), 0);
+
+ mGOPPolicy.Revision = GOP_POLICY_PROTOCOL_REVISION_03;
+ mGOPPolicy.GetPlatformLidStatus = GetPlatformLidStatus;
+ mGOPPolicy.GetVbtData = GetVbtData;
+ mGOPPolicy.GetPlatformDockStatus = GetPlatformDockStatus;
+
+ //
+ // Install protocol to allow access to this Policy.
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &ImageHandle,
+ &gGopPolicyProtocolGuid,
+ &mGOPPolicy,
+ NULL
+ );
+
+ return Status;
+}
|