mirror of https://github.com/acidanthera/audk.git
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/** @file
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Ipf platform related code to support FtwLite..
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Copyright (c) 2006 - 2008, Intel Corporation
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All rights reserved. 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 "FtwLite.h"
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//
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// MACROs for boot block update
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//
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#define BOOT_BLOCK_BASE
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/**
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Get swap state
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This is a internal function.
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@param FtwLiteDevice Calling context
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@param SwapState Swap state
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@retval EFI_SUCCESS State successfully got
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**/
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EFI_STATUS
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GetSwapState (
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IN EFI_FTW_LITE_DEVICE *FtwLiteDevice,
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OUT BOOLEAN *SwapState
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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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Set swap state.
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This is a internal function.
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@param FtwLiteDevice Indicates a pointer to the calling context.
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@param TopSwap New swap state
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@retval EFI_SUCCESS The function completed successfully
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Note:
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the Top-Swap bit (bit 13, D31: F0, Offset D4h). Note that
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software will not be able to clear the Top-Swap bit until the system is
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rebooted without GNT[A]# being pulled down.
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**/
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EFI_STATUS
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SetSwapState (
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IN EFI_FTW_LITE_DEVICE *FtwLiteDevice,
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IN BOOLEAN TopSwap
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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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Check whether the block is a boot block.
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@param FtwLiteDevice Calling context
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@param FvBlock Fvb protocol instance
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@param Lba Lba value
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@retval FALSE This is a boot block.
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@retval TRUE This is not a boot block.
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**/
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BOOLEAN
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IsBootBlock (
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EFI_FTW_LITE_DEVICE *FtwLiteDevice,
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EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,
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EFI_LBA Lba
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)
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{
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//
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// IPF doesn't support safe bootblock update
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// so treat bootblock as normal block
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//
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return FALSE;
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}
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/**
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Copy the content of spare block to a boot block. Size is FTW_BLOCK_SIZE.
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Spare block is accessed by FTW backup FVB protocol interface. LBA is
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FtwLiteDevice->FtwSpareLba.
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Boot block is accessed by BootFvb protocol interface. LBA is 0.
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@param FtwLiteDevice The private data of FTW_LITE driver
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@retval EFI_SUCCESS Spare block content is copied to boot block
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@retval EFI_INVALID_PARAMETER Input parameter error
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@retval EFI_OUT_OF_RESOURCES Allocate memory error
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@retval EFI_ABORTED The function could not complete successfully
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Notes:
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**/
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EFI_STATUS
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FlushSpareBlockToBootBlock (
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EFI_FTW_LITE_DEVICE *FtwLiteDevice
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)
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{
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return EFI_SUCCESS;
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}
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