1 files changed, 64 insertions, 0 deletions
diff --git a/Vlv2TbltDevicePkg/Include/Library/I2CLib.h b/Vlv2TbltDevicePkg/Include/Library/I2CLib.h
new file mode 100644
index 000000000..893d88519
--- /dev/null
+++ b/Vlv2TbltDevicePkg/Include/Library/I2CLib.h
@@ -0,0 +1,64 @@
+/** @file
+  Interface Definitions for I2C Lib.
+  
+  Copyright (c) 2004  - 2015, Intel Corporation. All rights reserved.<BR>
+                                                                                   
+  This program and the accompanying materials are licensed and made available under
+  the terms and conditions of the BSD License that 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.    
+                                                                               
+--*/
+
+#include <Uefi.h>
+#include <Library/IoLib.h>
+
+#ifndef I2C_LIB_HEADER_H
+#define I2C_LIB_HEADER_H
+
+
+/**
+  Reads a Byte from I2C Device.
+ 
+  @param  I2cControllerIndex   I2C Bus no to which the I2C device has been connected
+  @param  SlaveAddress         Device Address from which the byte value has to be read
+  @param  Offset               Offset from which the data has to be read
+  @param  ReadBytes            Number of bytes to be read
+  @param  *ReadBuffer          Address to which the value read has to be stored
+                                
+  @return  EFI_SUCCESS       If the byte value has been successfully read
+  @return  EFI_DEVICE_ERROR  Operation Failed, Device Error
+**/
+EFI_STATUS 
+ByteReadI2C(
+  IN  UINT8 BusNo, 
+  IN  UINT8 SlaveAddress, 
+  IN  UINT8 Offset,  
+  IN  UINTN ReadBytes,
+  OUT UINT8 *ReadBuffer
+  );
+
+/**
+  Writes a Byte to I2C Device.
+ 
+  @param  I2cControllerIndex  I2C Bus no to which the I2C device has been connected
+  @param  SlaveAddress        Device Address from which the byte value has to be written
+  @param  Offset              Offset from which the data has to be written
+  @param  WriteBytes          Number of bytes to be written
+  @param  *Byte               Address to which the value written is stored
+                                
+  @return  EFI_SUCCESS       If the byte value has been successfully read
+  @return  EFI_DEVICE_ERROR  Operation Failed, Device Error
+**/  
+EFI_STATUS ByteWriteI2C(
+  IN  UINT8 BusNo, 
+  IN  UINT8 SlaveAddress,
+  IN  UINT8 Offset,
+  IN  UINTN WriteBytes,
+  IN  UINT8 *WriteBuffer
+  );
+
+#endif