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/** @file
*
* Copyright (c) 2011-2015, ARM Limited. All rights reserved.
* Copyright (c) 2015, Hisilicon Limited. All rights reserved.
* Copyright (c) 2015, Linaro Limited. All rights reserved.
*
* 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 "FlashFvbDxe.h"
//
// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.ReadBlocks
//
EFI_STATUS
EFIAPI
FlashBlockIoReadBlocks (
IN EFI_BLOCK_IO_PROTOCOL* This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSizeInBytes,
OUT VOID* Buffer
)
{
FLASH_INSTANCE* Instance;
EFI_STATUS Status;
Instance = INSTANCE_FROM_BLKIO_THIS(This);
DEBUG ((EFI_D_INFO, "FlashBlockIoReadBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer));
if ( !This->Media->MediaPresent )
{
Status = EFI_NO_MEDIA;
}
else if ( This->Media->MediaId != MediaId )
{
Status = EFI_MEDIA_CHANGED;
}
else
{
Status = FlashReadBlocks (Instance, Lba, BufferSizeInBytes, Buffer);
}
return Status;
}
//
// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.WriteBlocks
//
EFI_STATUS
EFIAPI
FlashBlockIoWriteBlocks (
IN EFI_BLOCK_IO_PROTOCOL* This,
IN UINT32 MediaId,
IN EFI_LBA Lba,
IN UINTN BufferSizeInBytes,
IN VOID* Buffer
)
{
FLASH_INSTANCE* Instance;
EFI_STATUS Status;
Instance = INSTANCE_FROM_BLKIO_THIS(This);
DEBUG ((EFI_D_INFO, "FlashBlockIoWriteBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer));
if ( !This->Media->MediaPresent )
{
Status = EFI_NO_MEDIA;
}
else if ( This->Media->MediaId != MediaId )
{
Status = EFI_MEDIA_CHANGED;
}
else if ( This->Media->ReadOnly )
{
Status = EFI_WRITE_PROTECTED;
}
else
{
Status = FlashWriteBlocks (Instance, Lba, BufferSizeInBytes, Buffer);
}
return Status;
}
//
// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.FlushBlocks
//
EFI_STATUS
EFIAPI
FlashBlockIoFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL* This
)
{
// No Flush required for the NOR Flash driver
// because cache operations are not permitted.
// Nothing to do so just return without error
return EFI_SUCCESS;
}
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