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/** @file
Null Library instance of SPI Flash Common Library Class
Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Uefi.h>
#include <Library/DebugLib.h>
#include <Library/SpiFlashCommonLib.h>
/**
Enable block protection on the Serial Flash device.
@retval EFI_SUCCESS Operation is successful.
@retval EFI_DEVICE_ERROR If there is any device errors.
**/
EFI_STATUS
EFIAPI
SpiFlashLock (
VOID
)
{
return EFI_SUCCESS;
}
/**
Read NumBytes bytes of data from the address specified by
PAddress into Buffer.
@param[in] Address The starting physical address of the read.
@param[in,out] NumBytes On input, the number of bytes to read. On output, the number
of bytes actually read.
@param[out] Buffer The destination data buffer for the read.
@retval EFI_SUCCESS Operation is successful.
@retval EFI_DEVICE_ERROR If there is any device errors.
**/
EFI_STATUS
EFIAPI
SpiFlashRead (
IN UINTN Address,
IN OUT UINT32 *NumBytes,
OUT UINT8 *Buffer
)
{
ASSERT(FALSE);
return EFI_SUCCESS;
}
/**
Write NumBytes bytes of data from Buffer to the address specified by
PAddresss.
@param[in] Address The starting physical address of the write.
@param[in,out] NumBytes On input, the number of bytes to write. On output,
the actual number of bytes written.
@param[in] Buffer The source data buffer for the write.
@retval EFI_SUCCESS Operation is successful.
@retval EFI_DEVICE_ERROR If there is any device errors.
**/
EFI_STATUS
EFIAPI
SpiFlashWrite (
IN UINTN Address,
IN OUT UINT32 *NumBytes,
IN UINT8 *Buffer
)
{
ASSERT(FALSE);
return EFI_SUCCESS;
}
/**
Erase the block starting at Address.
@param[in] Address The starting physical address of the block to be erased.
This library assume that caller guarantee that the PAddress
is at the starting address of this block.
@param[in] NumBytes On input, the number of bytes of the logical block to be erased.
On output, the actual number of bytes erased.
@retval EFI_SUCCESS. Operation is successful.
@retval EFI_DEVICE_ERROR If there is any device errors.
**/
EFI_STATUS
EFIAPI
SpiFlashBlockErase (
IN UINTN Address,
IN UINTN *NumBytes
)
{
ASSERT(FALSE);
return EFI_SUCCESS;
}
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