/** @file | |
Platform flash device access library NULL instance. | |
Copyright (c) 2016, 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. | |
**/ | |
#include <PiDxe.h> | |
#include <Library/BaseMemoryLib.h> | |
#include <Library/PlatformFlashAccessLib.h> | |
UINT64 mInternalFdAddress; | |
/** | |
Perform flash write opreation. | |
@param[in] FirmwareType The type of firmware. | |
@param[in] FlashAddress The address of flash device to be accessed. | |
@param[in] FlashAddressType The type of flash device address. | |
@param[in] Buffer The pointer to the data buffer. | |
@param[in] Length The length of data buffer in bytes. | |
@retval EFI_SUCCESS The operation returns successfully. | |
@retval EFI_WRITE_PROTECTED The flash device is read only. | |
@retval EFI_UNSUPPORTED The flash device access is unsupported. | |
@retval EFI_INVALID_PARAMETER The input parameter is not valid. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
PerformFlashWrite ( | |
IN PLATFORM_FIRMWARE_TYPE FirmwareType, | |
IN EFI_PHYSICAL_ADDRESS FlashAddress, | |
IN FLASH_ADDRESS_TYPE FlashAddressType, | |
IN VOID *Buffer, | |
IN UINTN Length | |
) | |
{ | |
if (FlashAddressType == FlashAddressTypeRelativeAddress) { | |
FlashAddress = FlashAddress + mInternalFdAddress; | |
} | |
CopyMem((VOID *)(UINTN)(FlashAddress), Buffer, Length); | |
return EFI_SUCCESS; | |
} |