- Generated on Fri Nov 15 2024 18:01:35 for TianoCore EDK2 by
1.9.6
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TianoCore EDK2 master
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#include <Protocol/BlockIo.h>Go to the source code of this file.
Data Structures | |
| struct | EFI_BLOCK_IO2_TOKEN |
| struct | _EFI_BLOCK_IO2_PROTOCOL |
Macros | |
| #define | EFI_BLOCK_IO2_PROTOCOL_GUID |
Typedefs | |
| typedef struct _EFI_BLOCK_IO2_PROTOCOL | EFI_BLOCK_IO2_PROTOCOL |
| typedef EFI_STATUS(EFIAPI * | EFI_BLOCK_RESET_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN BOOLEAN ExtendedVerification) |
| typedef EFI_STATUS(EFIAPI * | EFI_BLOCK_READ_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA LBA, IN OUT EFI_BLOCK_IO2_TOKEN *Token, IN UINTN BufferSize, OUT VOID *Buffer) |
| typedef EFI_STATUS(EFIAPI * | EFI_BLOCK_WRITE_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA LBA, IN OUT EFI_BLOCK_IO2_TOKEN *Token, IN UINTN BufferSize, IN VOID *Buffer) |
| typedef EFI_STATUS(EFIAPI * | EFI_BLOCK_FLUSH_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN OUT EFI_BLOCK_IO2_TOKEN *Token) |
Variables | |
| EFI_GUID | gEfiBlockIo2ProtocolGuid |
Block IO2 protocol as defined in the UEFI 2.3.1 specification.
The Block IO2 protocol defines an extension to the Block IO protocol which enables the ability to read and write data at a block level in a non-blocking manner.
Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent
Definition in file BlockIo2.h.
| #define EFI_BLOCK_IO2_PROTOCOL_GUID |
Definition at line 18 of file BlockIo2.h.
| typedef EFI_STATUS(EFIAPI * EFI_BLOCK_FLUSH_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN OUT EFI_BLOCK_IO2_TOKEN *Token) |
Flush the Block Device.
If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is being used, the Event associated with this request will not be signaled.
| [in] | This | Indicates a pointer to the calling context. |
| [in,out] | Token | A pointer to the token associated with the transaction |
| EFI_SUCCESS | The flush request was queued if Event is not NULL. All outstanding data was written correctly to the device if the Event is NULL. |
| EFI_DEVICE_ERROR | The device reported an error while writting back the data. |
| EFI_WRITE_PROTECTED | The device cannot be written to. |
| EFI_NO_MEDIA | There is no media in the device. |
| EFI_MEDIA_CHANGED | The MediaId is not for the current media. |
| EFI_OUT_OF_RESOURCES | The request could not be completed due to a lack of resources. |
Definition at line 171 of file BlockIo2.h.
| typedef struct _EFI_BLOCK_IO2_PROTOCOL EFI_BLOCK_IO2_PROTOCOL |
Definition at line 23 of file BlockIo2.h.
| typedef EFI_STATUS(EFIAPI * EFI_BLOCK_READ_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA LBA, IN OUT EFI_BLOCK_IO2_TOKEN *Token, IN UINTN BufferSize, OUT VOID *Buffer) |
Read BufferSize bytes from Lba into Buffer.
This function reads the requested number of blocks from the device. All the blocks are read, or an error is returned. If EFI_DEVICE_ERROR, EFI_NO_MEDIA,_or EFI_MEDIA_CHANGED is returned and non-blocking I/O is being used, the Event associated with this request will not be signaled.
| [in] | This | Indicates a pointer to the calling context. |
| [in] | MediaId | Id of the media, changes every time the media is replaced. |
| [in] | Lba | The starting Logical Block Address to read from. |
| [in,out] | Token | A pointer to the token associated with the transaction. |
| [in] | BufferSize | Size of Buffer, must be a multiple of device block size. |
| [out] | Buffer | A pointer to the destination buffer for the data. The caller is responsible for either having implicit or explicit ownership of the buffer. |
| EFI_SUCCESS | The read request was queued if Token->Event is not NULL.The data was read correctly from the device if the Token->Event is NULL. |
| EFI_DEVICE_ERROR | The device reported an error while performing the read. |
| EFI_NO_MEDIA | There is no media in the device. |
| EFI_MEDIA_CHANGED | The MediaId is not for the current media. |
| EFI_BAD_BUFFER_SIZE | The BufferSize parameter is not a multiple of the intrinsic block size of the device. |
| EFI_INVALID_PARAMETER | The read request contains LBAs that are not valid, or the buffer is not on proper alignment. |
| EFI_OUT_OF_RESOURCES | The request could not be completed due to a lack of resources. |
Definition at line 96 of file BlockIo2.h.
| typedef EFI_STATUS(EFIAPI * EFI_BLOCK_RESET_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN BOOLEAN ExtendedVerification) |
Reset the block device hardware.
| [in] | This | Indicates a pointer to the calling context. |
| [in] | ExtendedVerification | Indicates that the driver may perform a more exhausive verification operation of the device during reset. |
| EFI_SUCCESS | The device was reset. |
| EFI_DEVICE_ERROR | The device is not functioning properly and could not be reset. |
Definition at line 56 of file BlockIo2.h.
| typedef EFI_STATUS(EFIAPI * EFI_BLOCK_WRITE_EX) (IN EFI_BLOCK_IO2_PROTOCOL *This, IN UINT32 MediaId, IN EFI_LBA LBA, IN OUT EFI_BLOCK_IO2_TOKEN *Token, IN UINTN BufferSize, IN VOID *Buffer) |
Write BufferSize bytes from Lba into Buffer.
This function writes the requested number of blocks to the device. All blocks are written, or an error is returned.If EFI_DEVICE_ERROR, EFI_NO_MEDIA, EFI_WRITE_PROTECTED or EFI_MEDIA_CHANGED is returned and non-blocking I/O is being used, the Event associated with this request will not be signaled.
| [in] | This | Indicates a pointer to the calling context. |
| [in] | MediaId | The media ID that the write request is for. |
| [in] | Lba | The starting logical block address to be written. The caller is responsible for writing to only legitimate locations. |
| [in,out] | Token | A pointer to the token associated with the transaction. |
| [in] | BufferSize | Size of Buffer, must be a multiple of device block size. |
| [in] | Buffer | A pointer to the source buffer for the data. |
| EFI_SUCCESS | The write request was queued if Event is not NULL. The data was written correctly to the device if the Event is NULL. |
| EFI_WRITE_PROTECTED | The device can not be written to. |
| EFI_NO_MEDIA | There is no media in the device. |
| EFI_MEDIA_CHNAGED | The MediaId does not matched the current device. |
| EFI_DEVICE_ERROR | The device reported an error while performing the write. |
| EFI_BAD_BUFFER_SIZE | The Buffer was not a multiple of the block size of the device. |
| EFI_INVALID_PARAMETER | The write request contains LBAs that are not valid, or the buffer is not on proper alignment. |
| EFI_OUT_OF_RESOURCES | The request could not be completed due to a lack of resources. |
Definition at line 138 of file BlockIo2.h.
1.9.6