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Michał Żygowski
121 lines
2.5 KiB
C
121 lines
2.5 KiB
C
/** @file SmmStoreLib.h
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Copyright (c) 2022, 9elements GmbH<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef SMM_STORE_LIB_H_
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#define SMM_STORE_LIB_H_
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#include <Base.h>
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#include <Uefi/UefiBaseType.h>
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#include <Guid/SmmStoreInfoGuid.h>
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#define SMMSTORE_COMBUF_SIZE 16
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/**
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Get the SmmStore block size
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@param BlockSize The pointer to store the block size in.
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**/
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EFI_STATUS
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SmmStoreLibGetBlockSize (
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OUT UINTN *BlockSize
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);
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/**
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Get the SmmStore number of blocks
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@param NumBlocks The pointer to store the number of blocks in.
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**/
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EFI_STATUS
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SmmStoreLibGetNumBlocks (
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OUT UINTN *NumBlocks
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);
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/**
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Get the SmmStore MMIO address
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@param MmioAddress The pointer to store the address in.
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**/
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EFI_STATUS
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SmmStoreLibGetMmioAddress (
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OUT EFI_PHYSICAL_ADDRESS *MmioAddress
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);
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/**
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Read from SmmStore
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@param[in] Lba The starting logical block index to read from.
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@param[in] Offset Offset into the block at which to begin reading.
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@param[in] NumBytes On input, indicates the requested read size. On
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output, indicates the actual number of bytes read
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@param[in] Buffer Pointer to the buffer to read into.
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**/
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EFI_STATUS
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SmmStoreLibRead (
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IN EFI_LBA Lba,
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IN UINTN Offset,
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IN UINTN *NumBytes,
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IN UINT8 *Buffer
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);
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/**
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Write to SmmStore
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@param[in] Lba The starting logical block index to write to.
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@param[in] Offset Offset into the block at which to begin writing.
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@param[in] NumBytes On input, indicates the requested write size. On
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output, indicates the actual number of bytes written
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@param[in] Buffer Pointer to the data to write.
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**/
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EFI_STATUS
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SmmStoreLibWrite (
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IN EFI_LBA Lba,
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IN UINTN Offset,
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IN UINTN *NumBytes,
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IN UINT8 *Buffer
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);
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/**
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Erase a block using the SmmStore
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@param Lba The logical block index to erase.
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**/
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EFI_STATUS
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SmmStoreLibEraseBlock (
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IN EFI_LBA Lba
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);
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/**
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Initializes SmmStore support
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@retval EFI_WRITE_PROTECTED The SmmStore is not present.
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@retval EFI_UNSUPPORTED The SmmStoreInfo HOB wasn't found.
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@retval EFI_SUCCESS The SmmStore is supported.
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**/
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EFI_STATUS
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SmmStoreLibInitialize (
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VOID
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);
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/**
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Denitializes SmmStore support
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**/
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VOID
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EFIAPI
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SmmStoreLibDeinitialize (
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VOID
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);
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#endif /* SMM_STORE_LIB_H_ */
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