75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/** @file
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I2c Dxe Driver
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;******************************************************************************
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;* Copyright (c) 2014, Insyde Software Corp. All Rights Reserved.
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;*
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;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
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;* transmit, broadcast, present, recite, release, license or otherwise exploit
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;* any part of this publication in any form, by any means, without the prior
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;* written permission of Insyde Software Corporation.
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;*
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;******************************************************************************
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*/
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#include "I2cDxe.h"
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#include "I2cEnum.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 = InitializeI2cEnum ( ImageHandle, SystemTable );
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if (!EFI_ERROR (Status)) {
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Status = InitializeI2cHost ( ImageHandle, SystemTable );
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if (!EFI_ERROR (Status)) {
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Status = InitializeI2cBus ( ImageHandle, SystemTable );
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}
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}
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if (EFI_ERROR (Status)) {
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I2cUnload (ImageHandle);
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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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I2cEnumUnload ( ImageHandle );
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I2cHostUnload ( ImageHandle );
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I2cBusUnload ( ImageHandle );
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return EFI_SUCCESS;
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}
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