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https://github.com/CloverHackyColor/CloverBootloader.git
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98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/** @file
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Apple RAM Disk library.
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Copyright (C) 2019, Download-Fritz. 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 OC_APPLE_RAM_DISK_LIB_H
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#define OC_APPLE_RAM_DISK_LIB_H
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#include <Protocol/AppleRamDisk.h>
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#include <Protocol/SimpleFileSystem.h>
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/**
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Request allocation of Size bytes in extents table.
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@param[in] Size Requested memory size.
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@param[in] MemoryType Requested memory type.
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@retval Allocated extent table.
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**/
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CONST APPLE_RAM_DISK_EXTENT_TABLE *
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OcAppleRamDiskAllocate (
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IN UINTN Size,
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IN EFI_MEMORY_TYPE MemoryType
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);
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/**
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Read RAM disk data.
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@param[in] ExtentTable Allocated extent table.
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@param[in] Offset Offset in RAM disk.
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@param[in] Size Amount of data to read.
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@param[out] Buffer Resulting data.
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@retval TRUE on success.
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**/
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BOOLEAN
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OcAppleRamDiskRead (
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IN CONST APPLE_RAM_DISK_EXTENT_TABLE *ExtentTable,
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IN UINTN Offset,
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IN UINTN Size,
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OUT VOID *Buffer
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);
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/**
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Write RAM disk data.
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@param[in] ExtentTable Allocated extent table.
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@param[in] Offset Offset in RAM disk.
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@param[in] Size Amount of data to write.
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@param[in] Buffer Source data.
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@retval TRUE on success.
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**/
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BOOLEAN
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OcAppleRamDiskWrite (
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IN CONST APPLE_RAM_DISK_EXTENT_TABLE *ExtentTable,
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IN UINTN Offset,
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IN UINTN Size,
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IN CONST VOID *Buffer
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);
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/**
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Load file into RAM disk as it is.
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@param[in] ExtentTable Allocated extent table.
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@param[in] File File protocol open for reading.
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@param[in] FileSize Amount of data to write.
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@retval TRUE on success.
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**/
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BOOLEAN
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OcAppleRamDiskLoadFile (
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IN OUT CONST APPLE_RAM_DISK_EXTENT_TABLE *ExtentTable,
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IN EFI_FILE_PROTOCOL *File,
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IN UINTN FileSize
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);
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/**
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Free RAM disk.
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@param[in] ExtentTable Allocated extent table.
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**/
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VOID
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OcAppleRamDiskFree (
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IN CONST APPLE_RAM_DISK_EXTENT_TABLE *ExtentTable
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);
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#endif // OC_APPLE_RAM_DISK_LIB_H
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