68dda854c6
CFI Flash differentiates DeviceBaseAddress with BlockAddress in its protocol. The DeviceBaseAddress was not considered in the previous version of this driver. This version also fixes some bugs in the implementation of the CFI protocol. This new version also uses the Boot Mode Hob to reinitialized the FVB when Boot Mode is equal to BOOT_WITH_DEFAULT_SETTINGS. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13064 6f19259b-4bc3-4df7-8a09-765794883524
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/** @file NorFlashBlockIoDxe.c
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Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include "NorFlashDxe.h"
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//
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// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.Reset
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//
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EFI_STATUS
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EFIAPI
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NorFlashBlockIoReset (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN BOOLEAN ExtendedVerification
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)
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{
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NOR_FLASH_INSTANCE *Instance;
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Instance = INSTANCE_FROM_BLKIO_THIS(This);
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DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoReset(MediaId=0x%x)\n", This->Media->MediaId));
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return NorFlashReset (Instance);
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}
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//
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// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.ReadBlocks
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//
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EFI_STATUS
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EFIAPI
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NorFlashBlockIoReadBlocks (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN UINT32 MediaId,
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IN EFI_LBA Lba,
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IN UINTN BufferSizeInBytes,
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OUT VOID *Buffer
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)
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{
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NOR_FLASH_INSTANCE *Instance;
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EFI_STATUS Status;
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Instance = INSTANCE_FROM_BLKIO_THIS(This);
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DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoReadBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer));
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if( !This->Media->MediaPresent ) {
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Status = EFI_NO_MEDIA;
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} else if( This->Media->MediaId != MediaId ) {
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Status = EFI_MEDIA_CHANGED;
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} else {
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Status = NorFlashReadBlocks (Instance,Lba,BufferSizeInBytes,Buffer);
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}
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return Status;
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}
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//
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// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.WriteBlocks
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//
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EFI_STATUS
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EFIAPI
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NorFlashBlockIoWriteBlocks (
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IN EFI_BLOCK_IO_PROTOCOL *This,
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IN UINT32 MediaId,
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IN EFI_LBA Lba,
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IN UINTN BufferSizeInBytes,
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IN VOID *Buffer
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)
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{
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NOR_FLASH_INSTANCE *Instance;
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EFI_STATUS Status;
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Instance = INSTANCE_FROM_BLKIO_THIS(This);
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DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoWriteBlocks(MediaId=0x%x, Lba=%ld, BufferSize=0x%x bytes (%d kB), BufferPtr @ 0x%08x)\n", MediaId, Lba, BufferSizeInBytes, Buffer));
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if( !This->Media->MediaPresent ) {
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Status = EFI_NO_MEDIA;
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} else if( This->Media->MediaId != MediaId ) {
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Status = EFI_MEDIA_CHANGED;
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} else if( This->Media->ReadOnly ) {
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Status = EFI_WRITE_PROTECTED;
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} else {
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Status = NorFlashWriteBlocks (Instance,Lba,BufferSizeInBytes,Buffer);
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}
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return Status;
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}
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//
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// BlockIO Protocol function EFI_BLOCK_IO_PROTOCOL.FlushBlocks
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//
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EFI_STATUS
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EFIAPI
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NorFlashBlockIoFlushBlocks (
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IN EFI_BLOCK_IO_PROTOCOL *This
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)
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{
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// No Flush required for the NOR Flash driver
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// because cache operations are not permitted.
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DEBUG ((DEBUG_BLKIO, "NorFlashBlockIoFlushBlocks: Function NOT IMPLEMENTED (not required).\n"));
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// Nothing to do so just return without error
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return EFI_SUCCESS;
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}
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