mirror of https://github.com/acidanthera/audk.git
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
|
/** @file
|
||
|
|
OVMF support for QEMU system firmware flash device
|
||
|
|
|
||
|
|
Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>
|
||
|
|
This program and the accompanying materials
|
||
|
|
are licensed and made available under the terms and conditions of the BSD License
|
||
|
|
which accompanies this distribution. The full text of the license may be found at
|
||
|
|
http://opensource.org/licenses/bsd-license.php
|
||
|
|
|
||
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||
|
|
|
||
|
|
**/
|
||
|
|
|
||
|
|
#ifndef __QEMU_FLASH_H__
|
||
|
|
#define __QEMU_FLASH_H__
|
||
|
|
|
||
|
|
#include <Protocol/FirmwareVolumeBlock.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
Read from QEMU Flash
|
||
|
|
|
||
|
|
@param[in] Lba The starting logical block index to read from.
|
||
|
|
@param[in] Offset Offset into the block at which to begin reading.
|
||
|
|
@param[in] NumBytes On input, indicates the requested read size. On
|
||
|
|
output, indicates the actual number of bytes read
|
||
|
|
@param[in] Buffer Pointer to the buffer to read into.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
QemuFlashRead (
|
||
|
|
IN EFI_LBA Lba,
|
||
|
|
IN UINTN Offset,
|
||
|
|
IN UINTN *NumBytes,
|
||
|
|
IN UINT8 *Buffer
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
Write to QEMU Flash
|
||
|
|
|
||
|
|
@param[in] Lba The starting logical block index to write to.
|
||
|
|
@param[in] Offset Offset into the block at which to begin writing.
|
||
|
|
@param[in] NumBytes On input, indicates the requested write size. On
|
||
|
|
output, indicates the actual number of bytes written
|
||
|
|
@param[in] Buffer Pointer to the data to write.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
QemuFlashWrite (
|
||
|
|
IN EFI_LBA Lba,
|
||
|
|
IN UINTN Offset,
|
||
|
|
IN UINTN *NumBytes,
|
||
|
|
IN UINT8 *Buffer
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
Erase a QEMU Flash block
|
||
|
|
|
||
|
|
@param Lba The logical block index to erase.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
QemuFlashEraseBlock (
|
||
|
|
IN EFI_LBA Lba
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
Initializes QEMU flash memory support
|
||
|
|
|
||
|
|
@retval EFI_WRITE_PROTECTED The QEMU flash device is not present.
|
||
|
|
@retval EFI_SUCCESS The QEMU flash device is supported.
|
||
|
|
|
||
|
|
**/
|
||
|
|
EFI_STATUS
|
||
|
|
QemuFlashInitialize (
|
||
|
|
VOID
|
||
|
|
);
|
||
|
|
|
||
|
|
|
||
|
|
VOID
|
||
|
|
QemuFlashConvertPointers (
|
||
|
|
VOID
|
||
|
|
);
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|