5f55c70046
* Universal/Acpi/AcpiTableDxe Implementation of EFI_ACPI_TABLE_PROTOCOL (MdePkg/Include/Protocol/AcpiTable.h) * Universal/Acpi/AcpiPlatformDxe Sample "ACPI Platform Driver" which populates the system ACPI tables by reading them from an FFS file and using EFI_ACPI_TABLE_PROTOCOL to make them available to the system. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7917 6f19259b-4bc3-4df7-8a09-765794883524
78 lines
2.1 KiB
C
Executable File
78 lines
2.1 KiB
C
Executable File
/** @file
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ACPI Table Protocol Driver
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Copyright (c) 2006, 2008, 2009, Intel Corporation<BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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//
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// Includes
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//
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#include "AcpiTable.h"
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//
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// Handle to install ACPI Table Protocol
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//
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EFI_HANDLE mHandle = NULL;
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/**
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Entry point of the ACPI table driver.
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Creates and initializes an instance of the ACPI Table
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Protocol and installs it on a new handle.
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@param ImageHandle A handle for the image that is initializing this driver.
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@param SystemTable A pointer to the EFI system table.
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@return EFI_SUCCESS Driver initialized successfully.
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@return EFI_LOAD_ERROR Failed to Initialize or has been loaded.
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@return EFI_OUT_OF_RESOURCES Could not allocate needed resources.
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**/
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EFI_STATUS
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EFIAPI
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InitializeAcpiTableDxe (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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EFI_ACPI_TABLE_INSTANCE *PrivateData;
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//
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// Initialize our protocol
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//
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PrivateData = AllocateZeroPool (sizeof (EFI_ACPI_TABLE_INSTANCE));
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ASSERT (PrivateData);
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PrivateData->Signature = EFI_ACPI_TABLE_SIGNATURE;
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//
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// Call all constructors per produced protocols
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//
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Status = AcpiTableAcpiTableConstructor (PrivateData);
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if (EFI_ERROR (Status)) {
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gBS->FreePool (PrivateData);
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return EFI_LOAD_ERROR;
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}
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//
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// Install ACPI Table protocol
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//
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Status = gBS->InstallMultipleProtocolInterfaces (
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&mHandle,
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&gEfiAcpiTableProtocolGuid,
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&PrivateData->AcpiTableProtocol,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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