1 files changed, 111 insertions, 0 deletions
diff --git a/EDK/Foundation/Efi/Protocol/DiskIO/DiskIo.h b/EDK/Foundation/Efi/Protocol/DiskIO/DiskIo.h
new file mode 100644
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--- /dev/null
+++ b/EDK/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