| /** @file | |
| ACPI Table Protocol Driver | |
| Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| // | |
| // Includes | |
| // | |
| #include "AcpiTable.h" | |
| // | |
| // Handle to install ACPI Table Protocol | |
| // | |
| EFI_HANDLE mHandle = NULL; | |
| GLOBAL_REMOVE_IF_UNREFERENCED EFI_ACPI_TABLE_INSTANCE *mPrivateData = NULL; | |
| /** | |
| Entry point of the ACPI table driver. | |
| Creates and initializes an instance of the ACPI Table | |
| Protocol and installs it on a new handle. | |
| @param ImageHandle A handle for the image that is initializing this driver. | |
| @param SystemTable A pointer to the EFI system table. | |
| @return EFI_SUCCESS Driver initialized successfully. | |
| @return EFI_LOAD_ERROR Failed to Initialize or has been loaded. | |
| @return EFI_OUT_OF_RESOURCES Could not allocate needed resources. | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| InitializeAcpiTableDxe ( | |
| IN EFI_HANDLE ImageHandle, | |
| IN EFI_SYSTEM_TABLE *SystemTable | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_ACPI_TABLE_INSTANCE *PrivateData; | |
| // | |
| // Initialize our protocol | |
| // | |
| PrivateData = AllocateZeroPool (sizeof (EFI_ACPI_TABLE_INSTANCE)); | |
| ASSERT (PrivateData); | |
| PrivateData->Signature = EFI_ACPI_TABLE_SIGNATURE; | |
| // | |
| // Call all constructors per produced protocols | |
| // | |
| Status = AcpiTableAcpiTableConstructor (PrivateData); | |
| if (EFI_ERROR (Status)) { | |
| gBS->FreePool (PrivateData); | |
| return EFI_LOAD_ERROR; | |
| } | |
| // | |
| // Install ACPI Table protocol | |
| // | |
| if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) { | |
| mPrivateData = PrivateData; | |
| Status = gBS->InstallMultipleProtocolInterfaces ( | |
| &mHandle, | |
| &gEfiAcpiTableProtocolGuid, | |
| &PrivateData->AcpiTableProtocol, | |
| &gEfiAcpiSdtProtocolGuid, | |
| &mPrivateData->AcpiSdtProtocol, | |
| NULL | |
| ); | |
| } else { | |
| Status = gBS->InstallMultipleProtocolInterfaces ( | |
| &mHandle, | |
| &gEfiAcpiTableProtocolGuid, | |
| &PrivateData->AcpiTableProtocol, | |
| NULL | |
| ); | |
| } | |
| ASSERT_EFI_ERROR (Status); | |
| return Status; | |
| } |