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https://github.com/CloverHackyColor/CloverBootloader.git
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161 lines
5.1 KiB
C
161 lines
5.1 KiB
C
/** @file
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This library class defines a set of interfaces for how to process capsule image updates.
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Copyright (c) 2007 - 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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#ifndef __CAPSULE_LIB_H__
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#define __CAPSULE_LIB_H__
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//
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// BOOLEAN Variable to indicate whether system is in the capsule on disk state.
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//
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#define COD_RELOCATION_INFO_VAR_NAME L"CodRelocationInfo"
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/**
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The firmware checks whether the capsule image is supported
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by the CapsuleGuid in CapsuleHeader or if there is other specific information in
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the capsule image.
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Caution: This function may receive untrusted input.
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@param CapsuleHeader Pointer to the UEFI capsule image to be checked.
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@retval EFI_SUCESS Input capsule is supported by firmware.
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@retval EFI_UNSUPPORTED Input capsule is not supported by the firmware.
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**/
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EFI_STATUS
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EFIAPI
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SupportCapsuleImage (
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IN EFI_CAPSULE_HEADER *CapsuleHeader
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);
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/**
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The firmware-specific implementation processes the capsule image
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if it recognized the format of this capsule image.
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Caution: This function may receive untrusted input.
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@param CapsuleHeader Pointer to the UEFI capsule image to be processed.
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@retval EFI_SUCESS Capsule Image processed successfully.
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@retval EFI_UNSUPPORTED Capsule image is not supported by the firmware.
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**/
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EFI_STATUS
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EFIAPI
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ProcessCapsuleImage (
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IN EFI_CAPSULE_HEADER *CapsuleHeader
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);
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/**
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This routine is called to process capsules.
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Caution: This function may receive untrusted input.
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The capsules reported in EFI_HOB_UEFI_CAPSULE are processed.
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If there is no EFI_HOB_UEFI_CAPSULE, this routine does nothing.
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This routine should be called twice in BDS.
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1) The first call must be before EndOfDxe. The system capsules is processed.
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If device capsule FMP protocols are exposted at this time and device FMP
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capsule has zero EmbeddedDriverCount, the device capsules are processed.
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Each individual capsule result is recorded in capsule record variable.
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System may reset in this function, if reset is required by capsule and
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all capsules are processed.
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If not all capsules are processed, reset will be defered to second call.
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2) The second call must be after EndOfDxe and after ConnectAll, so that all
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device capsule FMP protocols are exposed.
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The system capsules are skipped. If the device capsules are NOT processed
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in first call, they are processed here.
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Each individual capsule result is recorded in capsule record variable.
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System may reset in this function, if reset is required by capsule
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processed in first call and second call.
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@retval EFI_SUCCESS There is no error when processing capsules.
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@retval EFI_OUT_OF_RESOURCES No enough resource to process capsules.
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**/
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EFI_STATUS
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EFIAPI
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ProcessCapsules (
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VOID
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);
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/**
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This routine is called to check if CapsuleOnDisk flag in OsIndications Variable
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is enabled.
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@retval TRUE Flag is enabled
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@retval FALSE Flag is not enabled
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**/
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BOOLEAN
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EFIAPI
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CoDCheckCapsuleOnDiskFlag(
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VOID
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);
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/**
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This routine is called to clear CapsuleOnDisk flags including OsIndications and BootNext variable.
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@retval EFI_SUCCESS All Capsule On Disk flags are cleared
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**/
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EFI_STATUS
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EFIAPI
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CoDClearCapsuleOnDiskFlag(
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VOID
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);
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/**
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Relocate Capsule on Disk from EFI system partition.
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Two solution to deliver Capsule On Disk:
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Solution A: If PcdCapsuleInRamSupport is enabled, relocate Capsule On Disk to memory and call UpdateCapsule().
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Solution B: If PcdCapsuleInRamSupport is disabled, relocate Capsule On Disk to a platform-specific NV storage
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device with BlockIo protocol.
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Device enumeration like USB costs time, user can input MaxRetry to tell function to retry.
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Function will stall 100ms between each retry.
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Side Effects:
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Capsule Delivery Supported Flag in OsIndication variable and BootNext variable will be cleared.
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Solution B: Content corruption. Block IO write directly touches low level write. Orignal partitions, file
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systems of the relocation device will be corrupted.
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@param[in] MaxRetry Max Connection Retry. Stall 100ms between each connection try to ensure
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devices like USB can get enumerated. Input 0 means no retry.
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@retval EFI_SUCCESS Capsule on Disk images are successfully relocated.
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**/
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EFI_STATUS
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EFIAPI
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CoDRelocateCapsule(
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UINTN MaxRetry
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);
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/**
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Remove the temp file from the root of EFI System Partition.
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Device enumeration like USB costs time, user can input MaxRetry to tell function to retry.
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Function will stall 100ms between each retry.
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@param[in] MaxRetry Max Connection Retry. Stall 100ms between each connection try to ensure
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devices like USB can get enumerated. Input 0 means no retry.
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@retval EFI_SUCCESS Remove the temp file successfully.
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**/
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EFI_STATUS
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EFIAPI
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CoDRemoveTempFile (
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UINTN MaxRetry
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);
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#endif
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