include/asm-arm/irq.h

   1 #ifndef __ASM_ARM_IRQ_H
   2 #define __ASM_ARM_IRQ_H
   3
   4 #include <asm/arch/irqs.h>
   5
   6 #ifndef irq_canonicalize
   7 #define irq_canonicalize(i)     (i)
   8 #endif
   9
  10 #ifndef NR_IRQS
  11 #define NR_IRQS 128
  12 #endif
  13
  14 /*
  15  * Use this value to indicate lack of interrupt
  16  * capability
  17  */
  18 #ifndef NO_IRQ
  19 #define NO_IRQ  ((unsigned int)(-1))
  20 #endif
  21
  22 struct irqaction;
  23
  24 extern void disable_irq_nosync(unsigned int);
  25 extern void disable_irq(unsigned int);
  26 extern void enable_irq(unsigned int);
  27
  28 /*
  29  * These correspond with the SA_TRIGGER_* defines, and therefore the
  30  * IRQRESOURCE_IRQ_* defines.
  31  */
  32 #define __IRQT_RISEDGE  (1 << 0)
  33 #define __IRQT_FALEDGE  (1 << 1)
  34 #define __IRQT_HIGHLVL  (1 << 2)
  35 #define __IRQT_LOWLVL   (1 << 3)
  36
  37 #define IRQT_NOEDGE     (0)
  38 #define IRQT_RISING     (__IRQT_RISEDGE)
  39 #define IRQT_FALLING    (__IRQT_FALEDGE)
  40 #define IRQT_BOTHEDGE   (__IRQT_RISEDGE|__IRQT_FALEDGE)
  41 #define IRQT_LOW        (__IRQT_LOWLVL)
  42 #define IRQT_HIGH       (__IRQT_HIGHLVL)
  43 #define IRQT_PROBE      (1 << 4)
  44
  45 int set_irq_type(unsigned int irq, unsigned int type);
  46 void disable_irq_wake(unsigned int irq);
  47 void enable_irq_wake(unsigned int irq);
  48 int setup_irq(unsigned int, struct irqaction *);
  49
  50 struct irqaction;
  51 struct pt_regs;
  52 int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
  53
  54 extern void migrate_irqs(void);
  55 #endif
  56