mirror of https://github.com/acidanthera/audk.git
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/** @file
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This file implements the entrypoint and unload function for I2C DXE module.
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Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "I2cDxe.h"
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/**
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The user Entry Point for I2C module. The user code starts with this function.
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@param[in] ImageHandle The firmware allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The entry point is executed successfully.
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@retval other Some error occurs when executing this entry point.
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**/
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EFI_STATUS
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EFIAPI
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InitializeI2c(
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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//
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// Install driver model protocol(s).
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//
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Status = InitializeI2cHost ( ImageHandle, SystemTable );
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if ( !EFI_ERROR ( Status ))
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{
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Status = InitializeI2cBus ( ImageHandle, SystemTable );
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}
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return Status;
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}
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/**
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This is the unload handle for I2C module.
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Disconnect the driver specified by ImageHandle from all the devices in the handle database.
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Uninstall all the protocols installed in the driver entry point.
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@param[in] ImageHandle The drivers' driver image.
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@retval EFI_SUCCESS The image is unloaded.
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@retval Others Failed to unload the image.
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**/
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EFI_STATUS
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EFIAPI
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I2cUnload (
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IN EFI_HANDLE ImageHandle
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)
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{
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EFI_STATUS Status;
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//
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// Disconnect the drivers
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//
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Status = I2cBusUnload ( ImageHandle );
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if ( !EFI_ERROR ( Status )) {
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Status = I2cHostUnload ( ImageHandle );
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}
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return Status;
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}
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