DiskIo2.h

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#ifndef __DISK_IO2_H__
#define __DISK_IO2_H__
 
#define EFI_DISK_IO2_PROTOCOL_GUID \
  { \
    0x151c8eae, 0x7f2c, 0x472c, 0x9e, 0x54, 0x98, 0x28, 0x19, 0x4f, 0x6a, 0x88 \
  }
 
typedef struct _EFI_DISK_IO2_PROTOCOL EFI_DISK_IO2_PROTOCOL;
 
typedef struct {
  //
  // If Event is NULL, then blocking I/O is performed.
  // If Event is not NULL and non-blocking I/O is supported, then non-blocking I/O is performed,
  // and Event will be signaled when the I/O request is completed.
  // The caller must be prepared to handle the case where the callback associated with Event occurs
  // before the original asynchronous I/O request call returns.
  //
  EFI_EVENT     Event;
 
  //
  // Defines whether or not the signaled event encountered an error.
  //
  EFI_STATUS    TransactionStatus;
} EFI_DISK_IO2_TOKEN;
 
typedef
EFI_STATUS
(EFIAPI *EFI_DISK_CANCEL_EX)(
  IN EFI_DISK_IO2_PROTOCOL *This
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_DISK_READ_EX)(
  IN EFI_DISK_IO2_PROTOCOL        *This,
  IN UINT32                       MediaId,
  IN UINT64                       Offset,
  IN OUT EFI_DISK_IO2_TOKEN       *Token,
  IN UINTN                        BufferSize,
  OUT VOID                        *Buffer
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_DISK_WRITE_EX)(
  IN EFI_DISK_IO2_PROTOCOL        *This,
  IN UINT32                       MediaId,
  IN UINT64                       Offset,
  IN OUT EFI_DISK_IO2_TOKEN       *Token,
  IN UINTN                        BufferSize,
  IN VOID                         *Buffer
  );
 
typedef
EFI_STATUS
(EFIAPI *EFI_DISK_FLUSH_EX)(
  IN EFI_DISK_IO2_PROTOCOL        *This,
  IN OUT EFI_DISK_IO2_TOKEN       *Token
  );
 
#define EFI_DISK_IO2_PROTOCOL_REVISION  0x00020000
 
struct _EFI_DISK_IO2_PROTOCOL {
  UINT64                Revision;
  EFI_DISK_CANCEL_EX    Cancel;
  EFI_DISK_READ_EX      ReadDiskEx;
  EFI_DISK_WRITE_EX     WriteDiskEx;
  EFI_DISK_FLUSH_EX     FlushDiskEx;
};
 
extern EFI_GUID  gEfiDiskIo2ProtocolGuid;
 
#endif