LXR linux/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
  22struct irqaction;
  23
  24extern void disable_irq_nosync(unsigned int);
  25extern void disable_irq(unsigned int);
  26extern void enable_irq(unsigned int);
  27
  28#define __IRQT_FALEDGE  (1 << 0)
  29#define __IRQT_RISEDGE  (1 << 1)
  30#define __IRQT_LOWLVL   (1 << 2)
  31#define __IRQT_HIGHLVL  (1 << 3)
  32
  33#define IRQT_NOEDGE     (0)
  34#define IRQT_RISING     (__IRQT_RISEDGE)
  35#define IRQT_FALLING    (__IRQT_FALEDGE)
  36#define IRQT_BOTHEDGE   (__IRQT_RISEDGE|__IRQT_FALEDGE)
  37#define IRQT_LOW        (__IRQT_LOWLVL)
  38#define IRQT_HIGH       (__IRQT_HIGHLVL)
  39#define IRQT_PROBE      (1 << 4)
  40
  41int set_irq_type(unsigned int irq, unsigned int type);
  42void disable_irq_wake(unsigned int irq);
  43void enable_irq_wake(unsigned int irq);
  44int setup_irq(unsigned int, struct irqaction *);
  45
  46struct irqaction;
  47struct pt_regs;
  48int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
  49
  50#endif
  51
  52