diff options
Diffstat (limited to 'MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.c')
-rw-r--r-- | MdeModulePkg/Bus/I2c/I2cDxe/I2cDxe.c | 75 |
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;
+}
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