1 files changed, 75 insertions, 0 deletions
diff --git a/ReferenceCode/Chipset/SystemAgent/BdatAccessHandler/Dxe/BdatAccessHandler.c b/ReferenceCode/Chipset/SystemAgent/BdatAccessHandler/Dxe/BdatAccessHandler.c
new file mode 100644
index 0000000..4894c8f
--- /dev/null
+++ b/ReferenceCode/Chipset/SystemAgent/BdatAccessHandler/Dxe/BdatAccessHandler.c
@@ -0,0 +1,75 @@
+/** @file
+  This code makes the BIOS Data structure available via standard ACPI mechanisms.
+
+@copyright
+  Copyright (c) 1999 - 2012 Intel Corporation. All rights reserved
+  This software and associated documentation (if any) is furnished
+  under a license and may only be used or copied in accordance
+  with the terms of the license. Except as permitted by such
+  license, no part of this software or documentation may be
+  reproduced, stored in a retrieval system, or transmitted in any
+  form or by any means without the express written consent of
+  Intel Corporation.
+
+  This file contains an 'Intel Peripheral Driver' and uniquely
+  identified as "Intel Reference Module" and is
+  licensed for Intel CPUs and chipsets under the terms of your
+  license agreement with Intel or your vendor.  This file may
+  be modified by the user, subject to additional terms of the
+  license agreement
+**/
+
+#include "BdatAccessHandler.h"
+
+STATIC EFI_ACPI_TABLE_PROTOCOL  *AcpiTable;
+
+/**
+  Entry point of the Bdat Access Handler.
+
+  @param[in] ImageHandle   EFI_HANDLE: A handle for the image that is initializing this driver
+  @param[in] SystemTable   EFI_SYSTEM_TABLE: A pointer to the EFI system table
+
+  @retval EFI_SUCCESS:              Driver initialized successfully
+  @exception EFI_UNSUPPORTED:          A needed driver was not located
+  @retval EFI_OUT_OF_RESOURCES:     Could not allocate needed resources
+**/
+EFI_STATUS
+BdatAccessHandler (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_SYSTEM_TABLE     *SystemTable
+  )
+{
+  EFI_STATUS                      Status;
+  VOID                            *HobList;
+  DXE_PLATFORM_SA_POLICY_PROTOCOL *DxePlatformSaPolicy;
+
+  ///
+  /// Check if the BDAT ACPI table support is enabled in Setup, if not then exit.
+  /// Get the platform setup policy.
+  ///
+  Status = gBS->LocateProtocol (&gDxePlatformSaPolicyGuid, NULL, (VOID **) &DxePlatformSaPolicy);
+  ASSERT_EFI_ERROR (Status);
+
+  ///
+  /// Get the start of the HOBs.
+  ///
+  Status = EfiGetSystemConfigurationTable (&gEfiHobListGuid, &HobList);
+  ASSERT_EFI_ERROR (Status);
+  if (EFI_ERROR (Status)) {
+    return EFI_UNSUPPORTED;
+  }
+  ///
+  /// Locate ACPI table protocol
+  ///
+  Status = gBS->LocateProtocol (&gEfiAcpiTableProtocolGuid, NULL, (VOID **) &AcpiTable);
+  ASSERT_EFI_ERROR (Status);
+  ASSERT (AcpiTable != NULL);
+  if (EFI_ERROR (Status)) {
+    return EFI_OUT_OF_RESOURCES;
+  }
+  BdatRmtHandler (DxePlatformSaPolicy, HobList, AcpiTable);
+  ///
+  /// ASSERT_EFI_ERROR (Status);
+  ///
+  return Status;
+}