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C/C++ Source or Header  |  2006-08-11  |  1.0 KB  |  35 lines
  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. typedef void (*ext_int_handler_t)(struct pt_regs *regs, __u16 code);
  14.  
  15. /*
  16.  * Warning: if you change ext_int_info_t you have to change the
  17.  * external interrupt handler in entry.S too.
  18.  */ 
  19. typedef struct ext_int_info_t {
  20.     struct ext_int_info_t *next;
  21.     ext_int_handler_t handler;
  22.     __u16 code;
  23. } __attribute__ ((packed)) ext_int_info_t;
  24.  
  25. extern ext_int_info_t *ext_int_hash[];
  26.  
  27. int register_external_interrupt(__u16 code, ext_int_handler_t handler);
  28. int register_early_external_interrupt(__u16 code, ext_int_handler_t handler,
  29.                       ext_int_info_t *info);
  30. int unregister_external_interrupt(__u16 code, ext_int_handler_t handler);
  31. int unregister_early_external_interrupt(__u16 code, ext_int_handler_t handler,
  32.                     ext_int_info_t *info);
  33.  
  34. #endif
  35.