Add ACPI drivers:

* 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

MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiTable.c

@@ -0,0 +1,77 @@
+/** @file
+  ACPI Table Protocol Driver
+
+  Copyright (c) 2006, 2008, 2009, Intel Corporation<BR>
+  All rights reserved. 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 "AcpiTable.h"
+
+//
+// Handle to install ACPI Table Protocol
+//
+EFI_HANDLE    mHandle = 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
+  //
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &mHandle,
+                  &gEfiAcpiTableProtocolGuid,
+                  &PrivateData->AcpiTableProtocol,
+                  NULL
+                  );
+  ASSERT_EFI_ERROR (Status);
+
+  return Status;
+}
+