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/** @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 ACPI Table instance
//
PrivateData = AllocateZeroPool (sizeof (EFI_ACPI_TABLE_INSTANCE));
if (PrivateData != NULL) {
PrivateData->Signature = EFI_ACPI_TABLE_SIGNATURE;
} else {
ASSERT (PrivateData);
return EFI_OUT_OF_RESOURCES;
}
//
// Call all constructors per produced protocols
//
Status = AcpiTableAcpiTableConstructor (PrivateData);
if (EFI_ERROR (Status)) {
gBS->FreePool (PrivateData);
return EFI_LOAD_ERROR;
}
mPrivateData = PrivateData;
//
// Install ACPI Table protocol
//
if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) {
Status = gBS->InstallMultipleProtocolInterfaces (
&mHandle,
&gEfiAcpiTableProtocolGuid,
&mPrivateData->AcpiTableProtocol,
&gEfiAcpiSdtProtocolGuid,
&mPrivateData->AcpiSdtProtocol,
NULL
);
} else {
Status = gBS->InstallMultipleProtocolInterfaces (
&mHandle,
&gEfiAcpiTableProtocolGuid,
&mPrivateData->AcpiTableProtocol,
NULL
);
}
ASSERT_EFI_ERROR (Status);
return Status;
}
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