8a96515e88
Signed-off-by: jljusten Reviewed-by: mdkinney Reviewed-by: rsun3 Reviewed-by: jyao1 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12221 6f19259b-4bc3-4df7-8a09-765794883524
92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/** @file
|
|
This is an implementation of the ACPI Support protocol. This is defined in
|
|
the Tiano ACPI External Product Specification, revision 0.3.6.
|
|
|
|
Copyright (c) 2006 - 2010, 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 which 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.
|
|
|
|
**/
|
|
|
|
//
|
|
// Includes
|
|
//
|
|
#include "AcpiSupport.h"
|
|
|
|
//
|
|
// Handle to install ACPI Table Protocol (and ACPI Suppport protocol).
|
|
//
|
|
EFI_HANDLE mHandle = NULL;
|
|
|
|
/**
|
|
Entry point of the ACPI support driver. This function creates and initializes an instance of the ACPI Support
|
|
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
|
|
|
|
@retval EFI_SUCCESS Driver initialized successfully
|
|
@retval EFI_LOAD_ERROR Failed to Initialize or has been loaded
|
|
@retval EFI_OUT_OF_RESOURCES Could not allocate needed resources
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
InstallAcpiSupport (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_ACPI_SUPPORT_INSTANCE *PrivateData;
|
|
|
|
//
|
|
// Initialize our protocol
|
|
//
|
|
PrivateData = AllocateZeroPool (sizeof (EFI_ACPI_SUPPORT_INSTANCE));
|
|
ASSERT (PrivateData);
|
|
PrivateData->Signature = EFI_ACPI_SUPPORT_SIGNATURE;
|
|
|
|
//
|
|
// Call all constructors per produced protocols
|
|
//
|
|
Status = AcpiSupportAcpiSupportConstructor (PrivateData);
|
|
if (EFI_ERROR (Status)) {
|
|
gBS->FreePool (PrivateData);
|
|
return EFI_LOAD_ERROR;
|
|
}
|
|
|
|
//
|
|
// Install ACPI Table protocol and optional ACPI support protocol based on
|
|
// feature flag: PcdInstallAcpiSupportProtocol.
|
|
//
|
|
if (FeaturePcdGet (PcdInstallAcpiSupportProtocol)) {
|
|
Status = gBS->InstallMultipleProtocolInterfaces (
|
|
&mHandle,
|
|
&gEfiAcpiTableProtocolGuid,
|
|
&PrivateData->AcpiTableProtocol,
|
|
&gEfiAcpiSupportProtocolGuid,
|
|
&PrivateData->AcpiSupport,
|
|
NULL
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
} else {
|
|
Status = gBS->InstallMultipleProtocolInterfaces (
|
|
&mHandle,
|
|
&gEfiAcpiTableProtocolGuid,
|
|
&PrivateData->AcpiTableProtocol,
|
|
NULL
|
|
);
|
|
ASSERT_EFI_ERROR (Status);
|
|
}
|
|
|
|
return Status;
|
|
}
|