src/include/ipxe/blocktrans.h

   1 #ifndef _IPXE_BLOCKTRANS_H
   2 #define _IPXE_BLOCKTRANS_H
   3
   4 /** @file
   5  *
   6  * Block device translator
   7  *
   8  */
   9
  10 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
  11
  12 #include <stdint.h>
  13 #include <ipxe/refcnt.h>
  14 #include <ipxe/interface.h>
  15 #include <ipxe/xferbuf.h>
  16 #include <ipxe/uaccess.h>
  17
  18 /** A block device translator */
  19 struct block_translator {
  20         /** Reference count */
  21         struct refcnt refcnt;
  22         /** Block device interface */
  23         struct interface block;
  24         /** Data transfer interface */
  25         struct interface xfer;
  26
  27         /** Data transfer buffer */
  28         struct xfer_buffer xferbuf;
  29         /** Data buffer */
  30         userptr_t buffer;
  31         /** Block size */
  32         size_t blksize;
  33 };
  34
  35 extern int block_translate ( struct interface *block,
  36                              userptr_t buffer, size_t size );
  37
  38 #endif /* _IPXE_BLOCKTRANS_H */