text: #ifndef __ASM_ARM_IRQ_H
  #define __ASM_ARM_IRQ_H
  
  #define NR_IRQS_LEGACY	16
  
  #ifndef CONFIG_SPARSE_IRQ
  #include <mach/irqs.h>
  #else
  #define NR_IRQS NR_IRQS_LEGACY
  #endif
  
  #ifndef irq_canonicalize
  #define irq_canonicalize(i)	(i)
  #endif
  
  /*
   * Use this value to indicate lack of interrupt
   * capability
   */
  #ifndef NO_IRQ
  #define NO_IRQ	((unsigned int)(-1))
  #endif
  
  #ifndef __ASSEMBLY__
  struct irqaction;
  struct pt_regs;
  extern void migrate_irqs(void);
  
  extern void asm_do_IRQ(unsigned int, struct pt_regs *);
  void handle_IRQ(unsigned int, struct pt_regs *);
  void init_IRQ(void);
  
  #endif
  
  #endif
  
  