1 files changed, 2 insertions, 68 deletions
diff --git a/MdePkg/Library/DxeSmbusLib/DxeSmbusLib.c b/MdePkg/Library/DxeSmbusLib/DxeSmbusLib.c
index 4c888370eb..2991350e24 100644
--- a/MdePkg/Library/DxeSmbusLib/DxeSmbusLib.c
+++ b/MdePkg/Library/DxeSmbusLib/DxeSmbusLib.c
@@ -43,11 +43,7 @@ SmbusLibConstructor (
 {
   EFI_STATUS  Status;
   
-  Status = gBS->LocateProtocol (
-                  &gEfiCpuIoProtocolGuid,
-                  NULL,
-                  (VOID**) &mSmbus
-                  );
+  Status = gBS->LocateProtocol (&gEfiSmbusProtocolGuid, NULL, (VOID**) &mSmbus);
   ASSERT_EFI_ERROR (Status);
   ASSERT (mSmbus != NULL);
 
@@ -80,7 +76,7 @@ InternalSmBusExec (
   IN     EFI_SMBUS_OPERATION        SmbusOperation,
   IN     UINTN                      SmBusAddress,
   IN     UINTN                      Length,
-  IN     VOID                       *Buffer,
+  IN OUT VOID                       *Buffer,
      OUT RETURN_STATUS              *Status        OPTIONAL
   )
 {
@@ -104,65 +100,3 @@ InternalSmBusExec (
 
   return Length;
 }
-
-/**
-  Assigns an SMBUS slave addresses.
-
-  Assigns the SMBUS device specified by Uuid the slave address specified by SmBusAddress.
-  The status of the executed command is returned.
-
-  @param  SmBusAddress        Address that encodes the SMBUS Slave Address,
-                              SMBUS Command, SMBUS Data Length, and PEC.
-  @param  Uuid                Pointer to the UUID of the device to assign a slave address.
-                              It will assign to all SMBUS slave devices if it is NULL.
-
-  @retval RETURN_SUCCESS      The SMBUS command was executed.
-  @retval RETURN_TIMEOUT      A timeout occurred while executing the SMBUS command.
-  @retval RETURN_DEVICE_ERROR The request was not completed because a failure reflected
-                              in the Host Status Register bit.
-                              Device errors are a result of a transaction collision, illegal command field,
-                              unclaimed cycle (host initiated), or bus errors (collisions).
-
-**/
-RETURN_STATUS
-InternalSmBusArpDevice (
-  IN UINTN          SmBusAddress,
-  IN CONST GUID     *Uuid       OPTIONAL 
-  )
-{
-  EFI_SMBUS_DEVICE_ADDRESS  SmbusDeviceAddress;
-
-  SmbusDeviceAddress.SmbusDeviceAddress = SMBUS_LIB_SLAVE_ADDRESS (SmBusAddress);
-  return (RETURN_STATUS) mSmbus->ArpDevice (
-                                   mSmbus,
-                                   (BOOLEAN) (Uuid == NULL),
-                                   (EFI_SMBUS_UDID *) Uuid,
-                                   &SmbusDeviceAddress
-                                   );
-}
-
-/**
-  Retrieves the mapping of all the SMBus devices.
-
-  The GetArpMap() function returns the mapping of all the SMBus devices 
-  that are enumerated by the SMBus host driver. 
- 
-  @param  Length              Size of the buffer that contains the SMBus device map.
-  @param  SmbusDeviceMap      The pointer to the device map as enumerated by the SMBus controller driver.
-
-  @retval RETURN_SUCCESS      The SMBUS command was executed.
-  @retval RETURN_TIMEOUT      A timeout occurred while executing the SMBUS command.
-  @retval RETURN_DEVICE_ERROR The request was not completed because a failure reflected
-                              in the Host Status Register bit.
-                              Device errors are a result of a transaction collision, illegal command field,
-                              unclaimed cycle (host initiated), or bus errors (collisions).
-
-**/
-RETURN_STATUS
-InternalGetArpMap (
-  OUT UINTN                         *Length,
-  OUT EFI_SMBUS_DEVICE_MAP          **SmbusDeviceMap
-  )
-{
-  return (RETURN_STATUS) mSmbus->GetArpMap (mSmbus, Length, SmbusDeviceMap);
-}