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hpsim_irq.c
Package: linux-2.4.20.tar.gz　[view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 1k
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Linux-Unix program

Development Platform:

Unix_Linux

hpsim_irq.c：Code Content
  1. /*
  2.  * Platform dependent support for HP simulator.
  3.  *
  4.  * Copyright (C) 1998-2001 Hewlett-Packard Co
  5.  * Copyright (C) 1998-2001 David Mosberger-Tang <davidm@hpl.hp.com>
  6.  */
  8. #include <linux/init.h>
  9. #include <linux/kernel.h>
  10. #include <linux/sched.h>
  11. #include <linux/irq.h>
  13. static unsigned int
  14. hpsim_irq_startup (unsigned int irq)
  15. {
  16. return 0;
  17. }
  19. static void
  20. hpsim_irq_noop (unsigned int irq)
  21. {
  22. }
  24. static struct hw_interrupt_type irq_type_hp_sim = {
  25. typename: "hpsim",
  26. startup: hpsim_irq_startup,
  27. shutdown: hpsim_irq_noop,
  28. enable: hpsim_irq_noop,
  29. disable: hpsim_irq_noop,
  30. ack: hpsim_irq_noop,
  31. end: hpsim_irq_noop,
  32. set_affinity: (void (*)(unsigned int, unsigned long)) hpsim_irq_noop,
  33. };
  35. void __init
  36. hpsim_irq_init (void)
  37. {
  38. irq_desc_t *idesc;
  39. int i;
  41. for (i = 0; i < NR_IRQS; ++i) {
  42. idesc = irq_desc(i);
  43. if (idesc->handler == &no_irq_type)
  44. idesc->handler = &irq_type_hp_sim;
  45. }
  46. }