/** @file
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This file contains NULL implementation for GPIO Helpers Lib
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Copyright (c) 2019 Intel Corporation. All rights reserved. <BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi/UefiBaseType.h>
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#include <GpioConfig.h>
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/**
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This procedure stores GPIO pad unlock information
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@param[in] GpioPad GPIO pad
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@param[in] GpioLockConfig GPIO Lock Configuration
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@retval Status
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**/
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EFI_STATUS
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GpioStoreUnlockData (
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IN GPIO_PAD GpioPad,
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IN GPIO_LOCK_CONFIG GpioLockConfig
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)
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{
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return EFI_SUCCESS;
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}
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/**
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This procedure stores GPIO group data about pads which PadConfig needs to be unlocked.
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@param[in] GroupIndex GPIO group index
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@param[in] DwNum DWORD index for a group.
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For group which has less then 32 pads per group DwNum must be 0.
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@param[in] UnlockedPads DWORD bitmask for pads which are going to be left unlocked
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Bit position - PadNumber
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Bit value - 0: Skip, 1: Leave unlocked
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@retval Status
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**/
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EFI_STATUS
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GpioStoreGroupDwUnlockPadConfigData (
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IN UINT32 GroupIndex,
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IN UINT32 DwNum,
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IN UINT32 UnlockedPads
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)
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{
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return EFI_SUCCESS;
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}
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/**
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This procedure stores GPIO group data about pads which Output state needs to be unlocked.
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@param[in] GroupIndex GPIO group index
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@param[in] DwNum DWORD index for a group.
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For group which has less then 32 pads per group DwNum must be 0.
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@param[in] UnlockedPads DWORD bitmask for pads which are going to be left unlocked
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Bit position - PadNumber
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Bit value - 0: Skip, 1: Leave unlocked
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@retval Status
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**/
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EFI_STATUS
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GpioStoreGroupDwUnlockOutputData (
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IN UINT32 GroupIndex,
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IN UINT32 DwNum,
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IN UINT32 UnlockedPads
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)
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{
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return EFI_SUCCESS;
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}
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/**
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This procedure will get GPIO group data with pads, which PadConfig is supposed to be left unlock
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@param[in] GroupIndex GPIO group index
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@param[in] DwNum DWORD index for a group.
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For group which has less then 32 pads per group DwNum must be 0.
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@retval UnlockedPads DWORD bitmask for pads which are going to be left unlocked
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Bit position - PadNumber
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Bit value - 0: to be locked, 1: Leave unlocked
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**/
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UINT32
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GpioGetGroupDwUnlockPadConfigMask (
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IN UINT32 GroupIndex,
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IN UINT32 DwNum
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)
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{
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return 0;
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}
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/**
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This procedure will get GPIO group data with pads, which Output is supposed to be left unlock
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@param[in] GroupIndex GPIO group index
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@param[in] DwNum DWORD index for a group.
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For group which has less then 32 pads per group DwNum must be 0.
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@retval UnlockedPads DWORD bitmask for pads which are going to be left unlocked
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Bit position - PadNumber
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Bit value - 0: to be locked, 1: Leave unlocked
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**/
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UINT32
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GpioGetGroupDwUnlockOutputMask (
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IN UINT32 GroupIndex,
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IN UINT32 DwNum
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)
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{
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return 0;
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}
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