1 files changed, 75 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.c b/MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.c
new file mode 100644
index 0000000000..fb985f96e2
--- /dev/null
+++ b/MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.c
@@ -0,0 +1,75 @@
+/** @file
+  This file implements the entrypoint and unload function for I2C DXE module.
+
+  Copyright (c) 2013, 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
+  which 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 "I2cDxe.h"
+
+/**
+  The user Entry Point for I2C module. The user code starts with this function.
+
+  @param[in] ImageHandle    The firmware allocated handle for the EFI image.
+  @param[in] SystemTable    A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS       The entry point is executed successfully.
+  @retval other             Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+InitializeI2c(
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_SYSTEM_TABLE     *SystemTable
+  )
+{
+  EFI_STATUS              Status;
+
+  //
+  // Install driver model protocol(s).
+  //
+  Status = InitializeI2cHost ( ImageHandle, SystemTable );
+  if ( !EFI_ERROR ( Status ))
+  {
+    Status = InitializeI2cBus ( ImageHandle, SystemTable );
+  }
+  return Status;
+}
+
+/**
+  This is the unload handle for I2C module.
+
+  Disconnect the driver specified by ImageHandle from all the devices in the handle database.
+  Uninstall all the protocols installed in the driver entry point.
+
+  @param[in] ImageHandle           The drivers' driver image.
+
+  @retval    EFI_SUCCESS           The image is unloaded.
+  @retval    Others                Failed to unload the image.
+
+**/
+EFI_STATUS
+EFIAPI
+I2cUnload (
+  IN EFI_HANDLE             ImageHandle
+  )
+{
+  EFI_STATUS                        Status;
+
+  //
+  //  Disconnect the drivers
+  //
+  Status = I2cBusUnload ( ImageHandle );
+  if ( !EFI_ERROR ( Status )) {
+    Status = I2cHostUnload ( ImageHandle );
+  }
+  return Status;
+}