IntelFrameworkModulePkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / IntelFrameworkModulePkg / Universal / Acpi / AcpiSupportDxe / AcpiSupport.c

/** @file\r
  This is an implementation of the ACPI Support protocol.  This is defined in\r
  the Tiano ACPI External Product Specification, revision 0.3.6.\r
\r
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
//\r
// Includes\r
//\r
#include "AcpiSupport.h"\r
\r
//\r
// Handle to install ACPI Table Protocol (and ACPI Suppport protocol).\r
//\r
EFI_HANDLE    mHandle = NULL;\r
\r
/**\r
  Entry point of the ACPI support driver. This function creates and initializes an instance of the ACPI Support\r
  Protocol and installs it on a new handle.\r
\r
  @param ImageHandle   A handle for the image that is initializing this driver\r
  @param SystemTable   A pointer to the EFI system table\r
\r
  @retval EFI_SUCCESS              Driver initialized successfully\r
  @retval EFI_LOAD_ERROR           Failed to Initialize or has been loaded\r
  @retval EFI_OUT_OF_RESOURCES     Could not allocate needed resources\r
**/\r
EFI_STATUS\r
EFIAPI\r
InstallAcpiSupport (\r
  IN EFI_HANDLE           ImageHandle,\r
  IN EFI_SYSTEM_TABLE     *SystemTable\r
  )\r
\r
{\r
  EFI_STATUS                Status;\r
  EFI_ACPI_SUPPORT_INSTANCE *PrivateData;\r
\r
  //\r
  // Initialize our protocol\r
  //\r
  PrivateData = AllocateZeroPool (sizeof (EFI_ACPI_SUPPORT_INSTANCE));\r
  ASSERT (PrivateData);\r
  PrivateData->Signature = EFI_ACPI_SUPPORT_SIGNATURE;\r
\r
  //\r
  // Call all constructors per produced protocols\r
  //\r
  Status = AcpiSupportAcpiSupportConstructor (PrivateData);\r
  if (EFI_ERROR (Status)) {\r
    gBS->FreePool (PrivateData);\r
    return EFI_LOAD_ERROR;\r
  }\r
\r
  //\r
  // Install ACPI Table protocol and optional ACPI support protocol based on\r
  // feature flag: PcdInstallAcpiSupportProtocol.\r
  //\r
  if (FeaturePcdGet (PcdInstallAcpiSupportProtocol)) {\r
    Status = gBS->InstallMultipleProtocolInterfaces (\r
                    &mHandle,\r
                    &gEfiAcpiTableProtocolGuid,\r
                    &PrivateData->AcpiTableProtocol,\r
                    &gEfiAcpiSupportProtocolGuid,\r
                    &PrivateData->AcpiSupport,\r
                    NULL\r
                    );\r
    ASSERT_EFI_ERROR (Status);\r
  } else {\r
    Status = gBS->InstallMultipleProtocolInterfaces (\r
                    &mHandle,\r
                    &gEfiAcpiTableProtocolGuid,\r
                    &PrivateData->AcpiTableProtocol,\r
                    NULL\r
                    );\r
    ASSERT_EFI_ERROR (Status);\r
  }\r
\r
  return Status;\r
}\r