diff options
Diffstat (limited to 'EdkCompatibilityPkg/Foundation/Efi/Protocol/DiskIO/DiskIo.h')
-rw-r--r-- | EdkCompatibilityPkg/Foundation/Efi/Protocol/DiskIO/DiskIo.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/EdkCompatibilityPkg/Foundation/Efi/Protocol/DiskIO/DiskIo.h b/EdkCompatibilityPkg/Foundation/Efi/Protocol/DiskIO/DiskIo.h new file mode 100644 index 0000000000..fee3034fc8 --- /dev/null +++ b/EdkCompatibilityPkg/Foundation/Efi/Protocol/DiskIO/DiskIo.h @@ -0,0 +1,111 @@ +/*++
+
+Copyright (c) 2004, 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:
+
+ DiskIo.h
+
+Abstract:
+
+ Disk IO protocol as defined in the EFI 1.0 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.
+
+--*/
+
+#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 \
+ }
+
+EFI_FORWARD_DECLARATION (EFI_DISK_IO_PROTOCOL);
+
+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
+ )
+/*++
+
+ Routine Description:
+ Read BufferSize bytes from Offset into Buffer.
+
+ Arguments:
+ This - Protocol instance pointer.
+ MediaId - Id of the media, changes every time the media is replaced.
+ Offset - The starting byte offset to read from
+ BufferSize - Size of Buffer
+ Buffer - Buffer containing read data
+
+ Returns:
+ EFI_SUCCESS - The data was read correctly from the device.
+ EFI_DEVICE_ERROR - The device reported an error while performing the read.
+ EFI_NO_MEDIA - There is no media in the device.
+ EFI_MEDIA_CHNAGED - The MediaId does not matched the current device.
+ EFI_INVALID_PARAMETER - The read 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
+ )
+/*++
+
+ Routine Description:
+ Read BufferSize bytes from Offset into Buffer.
+
+ Arguments:
+ This - Protocol instance pointer.
+ MediaId - Id of the media, changes every time the media is replaced.
+ Offset - The starting byte offset to read from
+ BufferSize - Size of Buffer
+ Buffer - Buffer containing read data
+
+ Returns:
+ EFI_SUCCESS - The data was written correctly to the device.
+ EFI_WRITE_PROTECTED - The device can not be written to.
+ EFI_DEVICE_ERROR - The device reported an error while performing the write.
+ EFI_NO_MEDIA - There is no media in the device.
+ EFI_MEDIA_CHNAGED - The MediaId does not matched the current device.
+ EFI_INVALID_PARAMETER - The write request contains device addresses that are not
+ valid for the device.
+
+--*/
+;
+
+#define EFI_DISK_IO_PROTOCOL_REVISION 0x00010000
+
+typedef struct _EFI_DISK_IO_PROTOCOL {
+ UINT64 Revision;
+ EFI_DISK_READ ReadDisk;
+ EFI_DISK_WRITE WriteDisk;
+} EFI_DISK_IO_PROTOCOL;
+
+extern EFI_GUID gEfiDiskIoProtocolGuid;
+
+#endif
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