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Diffstat (limited to 'EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/Fvb.c')
| -rw-r--r-- | EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/Fvb.c | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/Fvb.c b/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/Fvb.c new file mode 100644 index 0000000..88ba6ce --- /dev/null +++ b/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/Fvb.c @@ -0,0 +1,332 @@ +/*++ + +Copyright (c) 2004 - 2007, Intel Corporation +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. + +Module Name: + + Fvb.c + +Abstract: + + Light weight lib to support Tiano Firmware Volume Block + protocol abstraction at runtime. + + All these functions convert EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID + class function to the Runtime Lib function. There is a 1 to 1 mapping. + + If you are using any of these lib functions.you must first call FvbInitialize (). + +--*/ + +#include "Tiano.h" +#include "EfiRuntimeLib.h" +#include EFI_PROTOCOL_DEFINITION (ExtendedSalGuid) +#include "SalApi.h" + +EFI_STATUS +EfiFvbInitialize ( + VOID + ) +/*++ + +Routine Description: + Initialize globals and register Fvb Protocol notification function. + +Arguments: + None + +Returns: + EFI_SUCCESS + +--*/ +{ + return EFI_SUCCESS; +} +// +// The following functions wrap Fvb protocol in the Runtime Lib functions. +// The Instance translates into Fvb instance. The Fvb order defined by HOBs and +// thus the sequence of FVB protocol addition define Instance. +// +// EfiFvbInitialize () must be called before any of the following functions +// must be called. +// +EFI_STATUS +EfiFvbReadBlock ( + IN UINTN Instance, + IN EFI_LBA Lba, + IN UINTN Offset, + IN OUT UINTN *NumBytes, + IN UINT8 *Buffer + ) +/*++ + +Routine Description: + Reads specified number of bytes into a buffer from the specified block + +Arguments: + Instance - The FV instance to be read from + Lba - The logical block address to be read from + Offset - Offset into the block at which to begin reading + NumBytes - Pointer that on input contains the total size of + the buffer. On output, it contains the total number + of bytes read + Buffer - Pointer to a caller allocated buffer that will be + used to hold the data read + +Returns: + Status code + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService (&Guid, Read, Instance, Lba, Offset, (UINT64) NumBytes, (UINT64) Buffer, 0, 0).Status; +} + +EFI_STATUS +EfiFvbWriteBlock ( + IN UINTN Instance, + IN EFI_LBA Lba, + IN UINTN Offset, + IN OUT UINTN *NumBytes, + IN UINT8 *Buffer + ) +/*++ + +Routine Description: + Writes specified number of bytes from the input buffer to the block + +Arguments: + Instance - The FV instance to be written to + Lba - The starting logical block index to write to + Offset - Offset into the block at which to begin writing + NumBytes - Pointer that on input contains the total size of + the buffer. On output, it contains the total number + of bytes actually written + Buffer - Pointer to a caller allocated buffer that contains + the source for the write + +Returns: + Status code + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService (&Guid, Write, Instance, Lba, Offset, (UINT64) NumBytes, (UINT64) Buffer, 0, 0).Status; +} + +EFI_STATUS +EfiFvbEraseBlock ( + IN UINTN Instance, + IN UINTN Lba + ) +/*++ + +Routine Description: + Erases and initializes a firmware volume block + +Arguments: + Instance - The FV instance to be erased + Lba - The logical block index to be erased + +Returns: + Status code + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService (&Guid, EraseBlock, Instance, Lba, 0, 0, 0, 0, 0).Status; +} + +EFI_STATUS +EfiFvbGetVolumeAttributes ( + IN UINTN Instance, + OUT EFI_FVB_ATTRIBUTES *Attributes + ) +/*++ + +Routine Description: + Retrieves attributes, insures positive polarity of attribute bits, returns + resulting attributes in output parameter + +Arguments: + Instance - The FV instance whose attributes is going to be + returned + Attributes - Output buffer which contains attributes + +Returns: + Status code + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService (&Guid, SetVolumeAttributes, Instance, (UINT64) Attributes, 0, 0, 0, 0, 0).Status; +} + +EFI_STATUS +EfiFvbSetVolumeAttributes ( + IN UINTN Instance, + IN EFI_FVB_ATTRIBUTES Attributes + ) +/*++ + +Routine Description: + Modifies the current settings of the firmware volume according to the + input parameter. + +Arguments: + Instance - The FV instance whose attributes is going to be + modified + Attributes - It is a pointer to EFI_FVB_ATTRIBUTES + containing the desired firmware volume settings. + +Returns: + Status code + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService (&Guid, SetVolumeAttributes, Instance, (UINT64) (&Attributes), 0, 0, 0, 0, 0).Status; +} + +EFI_STATUS +EfiFvbGetPhysicalAddress ( + IN UINTN Instance, + OUT EFI_PHYSICAL_ADDRESS *BaseAddress + ) +/*++ + +Routine Description: + Retrieves the physical address of a memory mapped FV + +Arguments: + Instance - The FV instance whose base address is going to be + returned + BaseAddress - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS + that on successful return, contains the base address + of the firmware volume. + +Returns: + Status code + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService (&Guid, GetPhysicalAddress, Instance, (UINT64) BaseAddress, 0, 0, 0, 0, 0).Status; +} + +EFI_STATUS +EfiFvbGetBlockSize ( + IN UINTN Instance, + IN EFI_LBA Lba, + OUT UINTN *BlockSize, + OUT UINTN *NumOfBlocks + ) +/*++ + +Routine Description: + Retrieve the size of a logical block + +Arguments: + Instance - The FV instance whose block size is going to be + returned + Lba - Indicates which block to return the size for. + BlockSize - A pointer to a caller allocated UINTN in which + the size of the block is returned + NumOfBlocks - a pointer to a caller allocated UINTN in which the + number of consecutive blocks starting with Lba is + returned. All blocks in this range have a size of + BlockSize + +Returns: + EFI_SUCCESS - The firmware volume was read successfully and + contents are in Buffer + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService ( + &Guid, + GetBlockSize, + Instance, + Lba, + (UINT64) BlockSize, + (UINT64) NumOfBlocks, + 0, + 0, + 0 + ).Status; +} + +EFI_STATUS +EfiFvbEraseCustomBlockRange ( + IN UINTN Instance, + IN EFI_LBA StartLba, + IN UINTN OffsetStartLba, + IN EFI_LBA LastLba, + IN UINTN OffsetLastLba + ) +/*++ + +Routine Description: + Erases and initializes a specified range of a firmware volume + +Arguments: + Instance - The FV instance to be erased + StartLba - The starting logical block index to be erased + OffsetStartLba - Offset into the starting block at which to + begin erasing + LastLba - The last logical block index to be erased + OffsetLastLba - Offset into the last block at which to end erasing + +Returns: + Status code + +--*/ +{ + EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID; + + return EfiCallEsalService ( + &Guid, + EraseCustomBlockRange, + Instance, + StartLba, + OffsetStartLba, + LastLba, + OffsetLastLba, + 0, + 0 + ).Status; +} +EFI_STATUS +EfiFvbShutdown ( + VOID + ) +/*++ + +Routine Description: + Release resources allocated in EfiFvbInitialize. + +Arguments: + None + +Returns: + EFI_SUCCESS + +--*/ +{ + return EFI_SUCCESS; +}
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