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/** @file
Platform flash device access library.
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.
**/
#ifndef __PLATFORM_FLASH_ACCESS_LIB_H__
#define __PLATFORM_FLASH_ACCESS_LIB_H__
typedef enum {
FlashAddressTypeRelativeAddress,
FlashAddressTypeAbsoluteAddress,
} FLASH_ADDRESS_TYPE;
//
// Type 0 ~ 0x7FFFFFFF is defined in this library.
// Type 0x80000000 ~ 0xFFFFFFFF is reserved for OEM.
//
typedef enum {
PlatformFirmwareTypeSystemFirmware,
PlatformFirmwareTypeNvRam,
} PLATFORM_FIRMWARE_TYPE;
/**
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
);
#endif
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