diff options
Diffstat (limited to 'Vlv2TbltDevicePkg/PlatformGopPolicy/PlatformGopPolicy.c')
| -rw-r--r-- | Vlv2TbltDevicePkg/PlatformGopPolicy/PlatformGopPolicy.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/PlatformGopPolicy/PlatformGopPolicy.c b/Vlv2TbltDevicePkg/PlatformGopPolicy/PlatformGopPolicy.c new file mode 100644 index 0000000000..59c73c62ba --- /dev/null +++ b/Vlv2TbltDevicePkg/PlatformGopPolicy/PlatformGopPolicy.c @@ -0,0 +1,196 @@ +/*++
+
+Copyright (c) 1999 - 2014, 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 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.
+
+
+--*/
+
+/** @file
+**/
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Protocol/FirmwareVolume2.h>
+#include <Protocol/PlatformGopPolicy.h>
+
+#include <Guid/SetupVariable.h>
+#include <SetupMode.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+
+EFI_BOOT_SERVICES *gBS;
+
+
+PLATFORM_GOP_POLICY_PROTOCOL mPlatformGOPPolicy;
+
+//
+// Function implementations
+//
+
+/**
+ The function will excute with as the platform policy, and gives
+ the Platform Lid Status. IBV/OEM can customize this code for their specific
+ policy action.
+
+ @param CurrentLidStatus Gives the current LID Status
+
+ @retval EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+GetPlatformLidStatus (
+ OUT LID_STATUS *CurrentLidStatus
+)
+{
+ *CurrentLidStatus = LidOpen;
+
+ return EFI_SUCCESS;
+}
+
+/**
+ The function will excute and gives the Video Bios Table Size and Address.
+
+ @param VbtAddress Gives the Physical Address of Video BIOS Table
+
+ @param VbtSize Gives the Size of Video BIOS Table
+
+ @retval EFI_STATUS.
+
+**/
+
+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;
+
+ Buffer = 0;
+ FvHandles = NULL;
+
+ if (VbtAddress == NULL || VbtSize == NULL){
+ return EFI_INVALID_PARAMETER;
+ }
+ 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,
+ &gBmpImageGuid,
+ EFI_SECTION_RAW,
+ 0,
+ (void **)&Buffer,
+ &VbtBufferSize,
+ &AuthenticationStatus
+ );
+
+ if (!EFI_ERROR (Status)) {
+ *VbtAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)Buffer;
+ *VbtSize = (UINT32)VbtBufferSize;
+ Status = EFI_SUCCESS;
+ break;
+ }
+ }
+ } else {
+ Status = EFI_NOT_FOUND;
+ }
+
+ if (FvHandles != NULL) {
+ gBS->FreePool (FvHandles);
+ FvHandles = NULL;
+ }
+
+ return Status;
+}
+
+/**
+ Entry point for the Platform GOP Policy Driver.
+
+ @param ImageHandle Image handle of this driver.
+ @param SystemTable Global system service table.
+
+ @retval EFI_SUCCESS Initialization complete.
+ @retval EFI_OUT_OF_RESOURCES Do not have enough resources to initialize the driver.
+
+**/
+
+EFI_STATUS
+EFIAPI
+PlatformGOPPolicyEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+
+{
+ EFI_STATUS Status = EFI_SUCCESS;
+ SYSTEM_CONFIGURATION SystemConfiguration;
+ UINTN VarSize;
+
+
+ gBS = SystemTable->BootServices;
+
+ gBS->SetMem (
+ &mPlatformGOPPolicy,
+ sizeof (PLATFORM_GOP_POLICY_PROTOCOL),
+ 0
+ );
+
+ mPlatformGOPPolicy.Revision = PLATFORM_GOP_POLICY_PROTOCOL_REVISION_01;
+ mPlatformGOPPolicy.GetPlatformLidStatus = GetPlatformLidStatus;
+ mPlatformGOPPolicy.GetVbtData = GetVbtData;
+
+ //
+ // Install protocol to allow access to this Policy.
+ //
+ VarSize = sizeof(SYSTEM_CONFIGURATION);
+ Status = gRT->GetVariable(
+ L"Setup",
+ &gEfiNormalSetupGuid,
+ NULL,
+ &VarSize,
+ &SystemConfiguration
+ );
+ ASSERT_EFI_ERROR(Status);
+ if (SystemConfiguration.GOPEnable == 1)
+ {
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &ImageHandle,
+ &gPlatformGOPPolicyGuid,
+ &mPlatformGOPPolicy,
+ NULL
+ );
+ }
+
+ return Status;
+}
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