drivers/char/ftape/lowlevel/fdc-isr.h

   1 #ifndef _FDC_ISR_H
   2 #define _FDC_ISR_H
   3
   4 /*
   5  * Copyright (C) 1993-1996 Bas Laarhoven,
   6  *           (C) 1996-1997 Claus-Justus Heine.
   7
   8  This program is free software; you can redistribute it and/or modify
   9  it under the terms of the GNU General Public License as published by
  10  the Free Software Foundation; either version 2, or (at your option)
  11  any later version.
  12
  13  This program is distributed in the hope that it will be useful,
  14  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  GNU General Public License for more details.
  17
  18  You should have received a copy of the GNU General Public License
  19  along with this program; see the file COPYING.  If not, write to
  20  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  21
  22  *
  23  * $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-isr.h,v $
  24  * $Revision: 1.2 $
  25  * $Date: 1997/10/05 19:18:07 $
  26  *
  27  *      This file declares the global variables necessary to
  28  *      synchronize the interrupt service routine (isr) with the
  29  *      remainder of the QIC-40/80/3010/3020 floppy-tape driver
  30  *      "ftape" for Linux.
  31  */
  32
  33 /*
  34  *      fdc-isr.c defined public variables
  35  */
  36 extern volatile int ft_expected_stray_interrupts; /* masks stray interrupts */
  37 extern volatile int ft_seek_completed;            /* flag set by isr */
  38 extern volatile int ft_interrupt_seen;            /* flag set by isr */
  39 extern volatile int ft_hide_interrupt;            /* flag set by isr */
  40
  41 /*
  42  *      fdc-io.c defined public functions
  43  */
  44 extern void fdc_isr(void);
  45
  46 /*
  47  *      A kernel hook that steals one interrupt from the floppy
  48  *      driver (Should be fixed when the new fdc driver gets ready)
  49  *      See the linux kernel source files:
  50  *          drivers/block/floppy.c & drivers/block/blk.h
  51  *      for the details.
  52  */
  53 extern void (*do_floppy) (void);
  54
  55 #endif