include/asm-s390/s390_ext.h

   1 #ifndef _S390_EXTINT_H
   2 #define _S390_EXTINT_H
   3
   4 /*
   5  *  include/asm-s390/s390_ext.h
   6  *
   7  *  S390 version
   8  *    Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
   9  *    Author(s): Holger Smolinski (Holger.Smolinski@de.ibm.com),
  10  *               Martin Schwidefsky (schwidefsky@de.ibm.com)
  11  */
  12
  13 #include <linux/types.h>
  14
  15 typedef void (*ext_int_handler_t)(__u16 code);
  16
  17 /*
  18  * Warning: if you change ext_int_info_t you have to change the
  19  * external interrupt handler in entry.S too.
  20  */
  21 typedef struct ext_int_info_t {
  22         struct ext_int_info_t *next;
  23         ext_int_handler_t handler;
  24         __u16 code;
  25 } __attribute__ ((packed)) ext_int_info_t;
  26
  27 extern ext_int_info_t *ext_int_hash[];
  28
  29 int register_external_interrupt(__u16 code, ext_int_handler_t handler);
  30 int register_early_external_interrupt(__u16 code, ext_int_handler_t handler,
  31                                       ext_int_info_t *info);
  32 int unregister_external_interrupt(__u16 code, ext_int_handler_t handler);
  33 int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
  34                                         ext_int_info_t *info);
  35
  36 #endif