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Diffstat (limited to 'src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/DiskIo.h')
| -rw-r--r-- | src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/DiskIo.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/DiskIo.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/DiskIo.h new file mode 100644 index 0000000000..9f2526161c --- /dev/null +++ b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Protocol/DiskIo.h @@ -0,0 +1,117 @@ +/** @file + Disk IO protocol as defined in the UEFI 2.0 specification. + + The Disk IO protocol is used to convert block oriented devices into byte + oriented devices. The Disk IO protocol is intended to layer on top of the + Block IO protocol. + + Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> + 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. + +**/ + +#ifndef __DISK_IO_H__ +#define __DISK_IO_H__ + +#define EFI_DISK_IO_PROTOCOL_GUID \ + { \ + 0xce345171, 0xba0b, 0x11d2, {0x8e, 0x4f, 0x0, 0xa0, 0xc9, 0x69, 0x72, 0x3b } \ + } + +/// +/// Protocol GUID name defined in EFI1.1. +/// +#define DISK_IO_PROTOCOL EFI_DISK_IO_PROTOCOL_GUID + +typedef struct _EFI_DISK_IO_PROTOCOL EFI_DISK_IO_PROTOCOL; + +/// +/// Protocol defined in EFI1.1. +/// +typedef EFI_DISK_IO_PROTOCOL EFI_DISK_IO; + +/** + Read BufferSize bytes from Offset into Buffer. + + @param This Protocol instance pointer. + @param MediaId Id of the media, changes every time the media is replaced. + @param Offset The starting byte offset to read from + @param BufferSize Size of Buffer + @param Buffer Buffer containing read data + + @retval EFI_SUCCESS The data was read correctly from the device. + @retval EFI_DEVICE_ERROR The device reported an error while performing the read. + @retval EFI_NO_MEDIA There is no media in the device. + @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device. + @retval EFI_INVALID_PARAMETER The read request contains device addresses that are not + valid for the device. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DISK_READ)( + IN EFI_DISK_IO_PROTOCOL *This, + IN UINT32 MediaId, + IN UINT64 Offset, + IN UINTN BufferSize, + OUT VOID *Buffer + ); + +/** + Writes a specified number of bytes to a device. + + @param This Indicates a pointer to the calling context. + @param MediaId ID of the medium to be written. + @param Offset The starting byte offset on the logical block I/O device to write. + @param BufferSize The size in bytes of Buffer. The number of bytes to write to the device. + @param Buffer A pointer to the buffer containing the data to be written. + + @retval EFI_SUCCESS The data was written correctly to the device. + @retval EFI_WRITE_PROTECTED The device can not be written to. + @retval EFI_DEVICE_ERROR The device reported an error while performing the write. + @retval EFI_NO_MEDIA There is no media in the device. + @retval EFI_MEDIA_CHNAGED The MediaId does not matched the current device. + @retval EFI_INVALID_PARAMETER The write request contains device addresses that are not + valid for the device. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DISK_WRITE)( + IN EFI_DISK_IO_PROTOCOL *This, + IN UINT32 MediaId, + IN UINT64 Offset, + IN UINTN BufferSize, + IN VOID *Buffer + ); + +#define EFI_DISK_IO_PROTOCOL_REVISION 0x00010000 + +/// +/// Revision defined in EFI1.1 +/// +#define EFI_DISK_IO_INTERFACE_REVISION EFI_DISK_IO_PROTOCOL_REVISION + +/// +/// This protocol is used to abstract Block I/O interfaces. +/// +struct _EFI_DISK_IO_PROTOCOL { + /// + /// The revision to which the disk I/O interface adheres. All future + /// revisions must be backwards compatible. If a future version is not + /// backwards compatible, it is not the same GUID. + /// + UINT64 Revision; + EFI_DISK_READ ReadDisk; + EFI_DISK_WRITE WriteDisk; +}; + +extern EFI_GUID gEfiDiskIoProtocolGuid; + +#endif |