1 files changed, 169 insertions, 0 deletions
diff --git a/ReferenceCode/Haswell/SampleCode/Library/SmmIo/SmmIo.c b/ReferenceCode/Haswell/SampleCode/Library/SmmIo/SmmIo.c
new file mode 100644
index 0000000..9f1e19d
--- /dev/null
+++ b/ReferenceCode/Haswell/SampleCode/Library/SmmIo/SmmIo.c
@@ -0,0 +1,169 @@
+/** @file
+  SMM I/O access utility implementation file, for Ia32
+
+@copyright
+  Copyright (c) 1999 - 2013 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 a 'Sample Driver' and is licensed as such
+  under the terms of your license agreement with Intel or your
+  vendor.  This file may be modified by the user, subject to
+  the additional terms of the license agreement
+**/
+
+///
+/// Include files
+///
+#include "SmmIoLib.h"
+
+/**
+  Do a one byte IO read
+
+  @param[in] Address - IO address to read
+
+  @retval Data read
+**/
+UINT8
+SmmIoRead8 (
+  IN UINT16 Address
+  )
+{
+  UINT8 Buffer;
+
+  ASSERT (mSmst);
+
+  mSmst->SmmIo.Io.Read (
+          &mSmst->SmmIo,
+          SMM_IO_UINT8,
+          Address,
+          1,
+          &Buffer
+          );
+  return Buffer;
+}
+
+/**
+  Do a one byte IO write
+
+  @param[in] Address - IO address to write
+  @param[in] Data    - Data to write
+**/
+VOID
+SmmIoWrite8 (
+  IN UINT16 Address,
+  IN UINT8  Data
+  )
+{
+  ASSERT (mSmst);
+
+  mSmst->SmmIo.Io.Write (
+          &mSmst->SmmIo,
+          SMM_IO_UINT8,
+          Address,
+          1,
+          &Data
+          );
+}
+
+/**
+  Do a two byte IO read
+
+  @param[in] Address - IO address to read
+
+  @retval Data read
+**/
+UINT16
+SmmIoRead16 (
+  IN UINT16 Address
+  )
+{
+  UINT16 Buffer;
+
+  ASSERT (mSmst);
+
+  mSmst->SmmIo.Io.Read (
+          &mSmst->SmmIo,
+          SMM_IO_UINT16,
+          Address,
+          1,
+          &Buffer
+          );
+  return Buffer;
+}
+
+/**
+  Do a two byte IO write
+
+  @param[in] Address - IO address to write
+  @param[in] Data    - Data to write
+**/
+VOID
+SmmIoWrite16 (
+  IN UINT16 Address,
+  IN UINT16 Data
+  )
+{
+  ASSERT (mSmst);
+
+  mSmst->SmmIo.Io.Write (
+          &mSmst->SmmIo,
+          SMM_IO_UINT16,
+          Address,
+          1,
+          &Data
+          );
+}
+
+/**
+  Do a four byte IO read
+
+  @param[in] Address - IO address to read
+
+  @retval Data read
+**/
+UINT32
+SmmIoRead32 (
+  IN UINT16 Address
+  )
+{
+  UINT32 Buffer;
+
+  ASSERT (mSmst);
+
+  mSmst->SmmIo.Io.Read (
+          &mSmst->SmmIo,
+          SMM_IO_UINT32,
+          Address,
+          1,
+          &Buffer
+          );
+  return Buffer;
+}
+
+/**
+  Do a four byte IO write
+
+  @param[in] Address - IO address to write
+  @param[in] Data    - Data to write
+**/
+VOID
+SmmIoWrite32 (
+  IN UINT16 Address,
+  IN UINT32 Data
+  )
+{
+  ASSERT (mSmst);
+
+  mSmst->SmmIo.Io.Write (
+          &mSmst->SmmIo,
+          SMM_IO_UINT32,
+          Address,
+          1,
+          &Data
+          );
+}