1 files changed, 54 insertions, 0 deletions
diff --git a/ReferenceCode/Chipset/LynxPoint/Library/PchSmbusLib/Common/PchSmbusLib.c b/ReferenceCode/Chipset/LynxPoint/Library/PchSmbusLib/Common/PchSmbusLib.c
new file mode 100644
index 0000000..dcb46e2
--- /dev/null
+++ b/ReferenceCode/Chipset/LynxPoint/Library/PchSmbusLib/Common/PchSmbusLib.c
@@ -0,0 +1,54 @@
+/** @file
+  This file contains routines that support PCH SMBUS FUNCTION
+
+@copyright
+  Copyright (c) 2011 - 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 "PchSmbusLib.h"
+
+/**
+  This function provides a standard way to execute Smbus sequential
+  I2C Read. This function allows the PCH to perform block reads to
+  certain I2C devices, such as serial E2PROMs. Typically these data
+  bytes correspond to an offset (address) within the serial memory
+  chips.
+
+  @param[in] SmBusAddress         Address that encodes the SMBUS Slave Address,
+                                  SMBUS Command, SMBUS Data Length, and PEC.
+  @param[out] Buffer              Pointer to the buffer to store the bytes read
+                                  from the SMBUS
+  @param[out] Status              eturn status for the executed command.
+
+  @retval UINTN                   The number of bytes read
+**/
+UINTN
+EFIAPI
+SmBusSeqI2CRead (
+  IN  UINTN          SmBusAddress,
+  OUT VOID           *Buffer,
+  OUT RETURN_STATUS  * Status OPTIONAL
+  )
+{
+  UINTN  Length;
+
+  ASSERT (Buffer != NULL);
+  ASSERT (SMBUS_LIB_LENGTH (SmBusAddress) >= 1);
+  ASSERT (SMBUS_LIB_RESEARVED (SmBusAddress) == 0);
+
+  Length = SMBUS_LIB_LENGTH (SmBusAddress);
+  return InternalSmBusExec (EfiSmbusReadByte, SmBusAddress, Length, Buffer, Status);
+}