/** @file\r
-Implementation of SmBusLib class library for PEI phase.\r
+Implementation of SmBusLib class library for DXE phase.\r
\r
-Copyright (c) 2006, Intel Corporation<BR>\r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php.\r
\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
-Module Name: DxeSmbusLib.c\r
\r
**/\r
\r
+\r
#include "InternalSmbusLib.h"\r
\r
+\r
//\r
// Globle varible to cache pointer to Smbus protocol.\r
//\r
-STATIC EFI_SMBUS_HC_PROTOCOL *mSmbus = NULL; \r
+EFI_SMBUS_HC_PROTOCOL *mSmbus = NULL;\r
\r
/**\r
The constructor function caches the pointer to Smbus protocol.\r
- \r
+\r
The constructor function locates Smbus protocol from protocol database.\r
- It will ASSERT() if that operation fails and it will always return EFI_SUCCESS. \r
+ It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.\r
\r
@param ImageHandle The firmware allocated handle for the EFI image.\r
@param SystemTable A pointer to the EFI System Table.\r
- \r
+\r
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.\r
\r
**/\r
)\r
{\r
EFI_STATUS Status;\r
- \r
- Status = gBS->LocateProtocol (&gEfiSmbusProtocolGuid, NULL, (VOID**) &mSmbus);\r
+\r
+ Status = gBS->LocateProtocol (&gEfiSmbusHcProtocolGuid, NULL, (VOID**) &mSmbus);\r
ASSERT_EFI_ERROR (Status);\r
ASSERT (mSmbus != NULL);\r
\r
}\r
\r
/**\r
- Executes an SMBus operation to an SMBus controller. \r
+ Executes an SMBus operation to an SMBus controller.\r
\r
This function provides a standard way to execute Smbus script\r
as defined in the SmBus Specification. The data can either be of\r
the Length byte, word, or a block of data.\r
\r
- @param SmbusOperation Signifies which particular SMBus hardware protocol instance that it will use to\r
- execute the SMBus transactions.\r
- @param SmBusAddress Address that encodes the SMBUS Slave Address,\r
+ @param SmbusOperation Signifies which particular SMBus hardware protocol instance \r
+ that it will use to execute the SMBus transactions.\r
+ @param SmBusAddress The address that encodes the SMBUS Slave Address,\r
SMBUS Command, SMBUS Data Length, and PEC.\r
- @param Length Signifies the number of bytes that this operation will do. The maximum number of\r
- bytes can be revision specific and operation specific.\r
- @param Buffer Contains the value of data to execute to the SMBus slave device. Not all operations\r
- require this argument. The length of this buffer is identified by Length.\r
+ @param Length Signifies the number of bytes that this operation will do. \r
+ The maximum number of bytes can be revision specific \r
+ and operation specific.\r
+ @param Buffer Contains the value of data to execute to the SMBus slave \r
+ device. Not all operations require this argument. The \r
+ length of this buffer is identified by Length.\r
@param Status Return status for the executed command.\r
This is an optional parameter and may be NULL.\r
\r
- @return The actual number of bytes that are executed for this operation..\r
+ @return The actual number of bytes that are executed for this operation.\r
\r
**/\r
UINTN\r
SmbusDeviceAddress,\r
SMBUS_LIB_COMMAND (SmBusAddress),\r
SmbusOperation,\r
- SMBUS_LIB_PEC (SmBusAddress), \r
+ SMBUS_LIB_PEC (SmBusAddress),\r
&Length,\r
Buffer\r
);\r