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

56 lines
1.8 KiB
C

#ifndef _FDC_ISR_H
#define _FDC_ISR_H
/*
* Copyright (C) 1993-1996 Bas Laarhoven,
* (C) 1996-1997 Claus-Justus Heine.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING. If not, write to
the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Source: /homes/cvs/ftape-stacked/ftape/lowlevel/fdc-isr.h,v $
* $Revision: 1.2 $
* $Date: 1997/10/05 19:18:07 $
*
* This file declares the global variables necessary to
* synchronize the interrupt service routine (isr) with the
* remainder of the QIC-40/80/3010/3020 floppy-tape driver
* "ftape" for Linux.
*/
/*
* fdc-isr.c defined public variables
*/
extern volatile int ft_expected_stray_interrupts; /* masks stray interrupts */
extern volatile int ft_seek_completed; /* flag set by isr */
extern volatile int ft_interrupt_seen; /* flag set by isr */
extern volatile int ft_hide_interrupt; /* flag set by isr */
/*
* fdc-io.c defined public functions
*/
extern void fdc_isr(void);
/*
* A kernel hook that steals one interrupt from the floppy
* driver (Should be fixed when the new fdc driver gets ready)
* See the linux kernel source files:
* drivers/block/floppy.c & drivers/block/blk.h
* for the details.
*/
extern void (*do_floppy) (void);
#endif