drivers/char/ftape/zftape/zftape-read.h

   1 #ifndef _ZFTAPE_READ_H
   2 #define _ZFTAPE_READ_H
   3
   4 /*
   5  * Copyright (C) 1996, 1997 Claus-Justus Heine
   6
   7  This program is free software; you can redistribute it and/or modify
   8  it under the terms of the GNU General Public License as published by
   9  the Free Software Foundation; either version 2, or (at your option)
  10  any later version.
  11
  12  This program is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  GNU General Public License for more details.
  16
  17  You should have received a copy of the GNU General Public License
  18  along with this program; see the file COPYING.  If not, write to
  19  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20
  21  *
  22  * $Source: /homes/cvs/ftape-stacked/ftape/zftape/zftape-read.h,v $
  23  * $Revision: 1.2 $
  24  * $Date: 1997/10/05 19:19:07 $
  25  *
  26  *      This file contains the definitions for the read functions
  27  *      for the zftape driver for Linux.
  28  *
  29  */
  30
  31 #include "../lowlevel/ftape-read.h"
  32
  33 /*      ftape-read.c defined global vars.
  34  */
  35 extern int zft_just_before_eof;
  36
  37 /*      ftape-read.c defined global functions.
  38  */
  39 extern void zft_zap_read_buffers(void);
  40 extern int  zft_read_header_segments(void);
  41 extern int  zft_fetch_segment_fraction(const unsigned int segment,
  42                                        void *buffer,
  43                                        const ft_read_mode_t read_mode,
  44                                        const unsigned int start,
  45                                        const unsigned int size);
  46 #define zft_fetch_segment(segment, address, read_mode)          \
  47         zft_fetch_segment_fraction(segment, address, read_mode, \
  48                                    0, FT_SEGMENT_SIZE)
  49 /*   hook for the VFS interface
  50  */
  51 extern int  _zft_read(char __user *buff, int req_len);
  52
  53 #endif /* _ZFTAPE_READ_H */