release/src-rt-6.x/linux/linux-2.6/include/asm-arm/mach/irq.h

   1 /*
   2  *  linux/include/asm-arm/mach/irq.h
   3  *
   4  *  Copyright (C) 1995-2000 Russell King.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef __ASM_ARM_MACH_IRQ_H
  11 #define __ASM_ARM_MACH_IRQ_H
  12
  13 #include <linux/irq.h>
  14
  15 struct seq_file;
  16
  17 /*
  18  * This is internal.  Do not use it.
  19  */
  20 extern void (*init_arch_irq)(void);
  21 extern void init_FIQ(void);
  22 extern int show_fiq_list(struct seq_file *, void *);
  23
  24 /*
  25  * Obsolete inline function for calling irq descriptor handlers.
  26  */
  27 static inline void desc_handle_irq(unsigned int irq, struct irq_desc *desc)
  28 {
  29         desc->handle_irq(irq, desc);
  30 }
  31
  32 void set_irq_flags(unsigned int irq, unsigned int flags);
  33
  34 #define IRQF_VALID      (1 << 0)
  35 #define IRQF_PROBE      (1 << 1)
  36 #define IRQF_NOAUTOEN   (1 << 2)
  37
  38 /*
  39  * This is for easy migration, but should be changed in the source
  40  */
  41 #define do_bad_IRQ(irq,desc)                            \
  42 do {                                                    \
  43         spin_lock(&desc->lock);                         \
  44         handle_bad_irq(irq, desc);                      \
  45         spin_unlock(&desc->lock);                       \
  46 } while(0)
  47
  48 extern unsigned long irq_err_count;
  49 static inline void ack_bad_irq(int irq)
  50 {
  51         irq_err_count++;
  52 }
  53
  54 #endif