EraseBlock.h

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#ifndef __EFI_ERASE_BLOCK_PROTOCOL_H__
#define __EFI_ERASE_BLOCK_PROTOCOL_H__
 
#define EFI_ERASE_BLOCK_PROTOCOL_GUID \
  { \
    0x95a9a93e, 0xa86e, 0x4926, { 0xaa, 0xef, 0x99, 0x18, 0xe7, 0x72, 0xd9, 0x87 } \
  }
 
typedef struct _EFI_ERASE_BLOCK_PROTOCOL EFI_ERASE_BLOCK_PROTOCOL;
 
#define EFI_ERASE_BLOCK_PROTOCOL_REVISION  ((2<<16) | (60))
 
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 erase request is completed.
  //
  EFI_EVENT     Event;
  //
  // Defines whether the signaled event encountered an error.
  //
  EFI_STATUS    TransactionStatus;
} EFI_ERASE_BLOCK_TOKEN;
 
typedef
EFI_STATUS
(EFIAPI *EFI_BLOCK_ERASE)(
  IN     EFI_ERASE_BLOCK_PROTOCOL      *This,
  IN     UINT32                        MediaId,
  IN     EFI_LBA                       LBA,
  IN OUT EFI_ERASE_BLOCK_TOKEN         *Token,
  IN     UINTN                         Size
  );
 
struct _EFI_ERASE_BLOCK_PROTOCOL {
  //
  // The revision to which the EFI_ERASE_BLOCK_PROTOCOL adheres. All future
  // revisions must be backwards compatible. If a future version is not
  // backwards compatible, it is not the same GUID.
  //
  UINT64             Revision;
  //
  // Returns the erase length granularity as a number of logical blocks. A
  // value of 1 means the erase granularity is one logical block.
  //
  UINT32             EraseLengthGranularity;
  EFI_BLOCK_ERASE    EraseBlocks;
};
 
extern EFI_GUID  gEfiEraseBlockProtocolGuid;
 
#endif