include/linux/ioport.h

   1 /*
   2  * portio.h     Definitions of routines for detecting, reserving and
   3  *              allocating system resources.
   4  *
   5  * Version:     0.01    8/30/93
   6  *
   7  * Author:      Donald Becker (becker@super.org)
   8  */
   9
  10 #ifndef _LINUX_PORTIO_H
  11 #define _LINUX_PORTIO_H
  12
  13 #define HAVE_PORTRESERVE
  14 /*
  15  * Call check_region() before probing for your hardware.
  16  * Once you have found you hardware, register it with request_region().
  17  * If you unload the driver, use release_region to free ports.
  18  */
  19 extern void reserve_setup(char *str, int *ints);
  20 extern int check_region(unsigned long from, unsigned long extent);
  21 extern void request_region(unsigned long from, unsigned long extent,const char *name);
  22 extern void release_region(unsigned long from, unsigned long extent);
  23 extern int get_ioport_list(char *);
  24
  25 #ifdef __sparc__
  26 extern unsigned long occupy_region(unsigned long base, unsigned long end,
  27                                    unsigned long num, unsigned int align,
  28                                    const char *name);
  29 #endif
  30
  31 #define HAVE_AUTOIRQ
  32 extern void autoirq_setup(int waittime);
  33 extern int autoirq_report(int waittime);
  34
  35 #endif  /* _LINUX_PORTIO_H */