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Guo Dong
501be46716
The patch gives the platform the configuration capability to only build required file system into final image. This helps to have a smaller image for fast boot. Signed-off-by: Guo Dong <guo.dong@intel.com>
125 lines
4.3 KiB
C
125 lines
4.3 KiB
C
/** @file
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File system level API library interface prototypes
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Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License which accompanies this
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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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#ifndef _FILE_SYSTEM_LIB_H_
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#define _FILE_SYSTEM_LIB_H_
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#include <Library/PartitionLib.h>
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#include <Library/FatLib.h>
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#include <Library/Ext23Lib.h>
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#include <Guid/OsBootOptionGuid.h>
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/**
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Loads file into memory by its name.
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@param[in] FsHandle FAT file system handle.
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@param[in] FileName The file name to get.
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@param[out] FileBufferPtr Allocated file buffer pointer.
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@param[out] FileSize Pointer to file buffer size.
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@retval EFI_SUCCESS The file was loaded correctly.
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@retval EFI_INVALID_PARAMETER Parameter is not valid.
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@retval EFI_DEVICE_ERROR A device error occurred.
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@retval EFI_NOT_FOUND A requested file cannot be found.
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@retval EFI_OUT_OF_RESOURCES Insufficant memory resource pool.
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@retval EFI_BUFFER_TOO_SMALL Buffer size is too small.
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**/
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EFI_STATUS
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EFIAPI
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GetFileByName (
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IN EFI_HANDLE FsHandle,
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IN CHAR16 *FileName,
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OUT VOID **FileBuffer,
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OUT UINTN *FileSize
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);
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/**
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Initialize file systems.
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@param[in] SwPart Software partition index.
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@param[in] FsType Filesystem type.
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@param[in] PartHandle Partition handle.
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@param[out] FsHandle FAT file system handle.
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@retval EFI_SUCCESS The file system was initialized successfully.
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@retval EFI_INVALID_PARAMETER Parameter is not valid.
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@retval EFI_NOT_FOUND FAT file system was not detected on this partition.
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@retval EFI_OUT_OF_RESOURCES Insufficant memory resource pool.
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**/
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EFI_STATUS
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EFIAPI
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InitFileSystem (
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IN UINT32 SwPart,
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IN UINT32 FsType,
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IN EFI_HANDLE PartHandle,
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OUT EFI_HANDLE *FsHandle
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);
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/**
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Loads file into memory by its name.
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@param[in] FsHandle FAT file system handle.
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@param[in] FileName The file name to get.
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@param[out] FileBufferPtr Allocated file buffer pointer.
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@param[out] FileSize Pointer to file buffer size.
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@retval EFI_SUCCESS The file was loaded correctly.
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@retval EFI_INVALID_PARAMETER Parameter is not valid.
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@retval EFI_DEVICE_ERROR A device error occurred.
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@retval EFI_NOT_FOUND A requested file cannot be found.
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@retval EFI_OUT_OF_RESOURCES Insufficant memory resource pool.
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@retval EFI_BUFFER_TOO_SMALL Buffer size is too small.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *FS_GET_FILE_BY_NAME) (
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IN EFI_HANDLE FsHandle,
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IN CHAR16 *FileName,
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OUT VOID **FileBuffer,
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OUT UINTN *FileSize
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);
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/**
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Initialize file systems.
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@param[in] SwPart Software partition index.
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@param[in] PartHandle Partition handle.
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@param[out] FsHandle FAT file system handle.
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@retval EFI_SUCCESS The file system was initialized successfully.
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@retval EFI_INVALID_PARAMETER Parameter is not valid.
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@retval EFI_NOT_FOUND FAT file system was not detected on this partition.
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@retval EFI_OUT_OF_RESOURCES Insufficant memory resource pool.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *FS_INITIALIZE) (
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IN UINT32 SwPart,
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IN EFI_HANDLE PartHandle,
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OUT EFI_HANDLE *FsHandle
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);
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typedef struct {
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FS_INITIALIZE InitFileSystem;
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FS_GET_FILE_BY_NAME GetFileByName;
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} FILE_SYSTEM_FUNC;
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#endif // _FAT_PEIM_H_
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