kernel/irq/internals.h

   1 /*
   2  * IRQ subsystem internal functions and variables:
   3  */
   4
   5 extern int noirqdebug;
   6
   7 /* Set default functions for irq_chip structures: */
   8 extern void irq_chip_set_defaults(struct irq_chip *chip);
   9
  10 /* Set default handler: */
  11 extern void compat_irq_chip_set_default_handler(struct irq_desc *desc);
  12
  13 extern int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
  14                 unsigned long flags);
  15
  16 #ifdef CONFIG_PROC_FS
  17 extern void register_irq_proc(unsigned int irq, struct irq_desc *desc);
  18 extern void register_handler_proc(unsigned int irq, struct irqaction *action);
  19 extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
  20 #else
  21 static inline void register_irq_proc(unsigned int irq, struct irq_desc *desc) { }
  22 static inline void register_handler_proc(unsigned int irq,
  23                                          struct irqaction *action) { }
  24 static inline void unregister_handler_proc(unsigned int irq,
  25                                            struct irqaction *action) { }
  26 #endif
  27
  28 /*
  29  * Debugging printout:
  30  */
  31
  32 #include <linux/kallsyms.h>
  33
  34 #define P(f) if (desc->status & f) printk("%14s set\n", #f)
  35
  36 static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
  37 {
  38         printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
  39                 irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
  40         printk("->handle_irq():  %p, ", desc->handle_irq);
  41         print_symbol("%s\n", (unsigned long)desc->handle_irq);
  42         printk("->chip(): %p, ", desc->chip);
  43         print_symbol("%s\n", (unsigned long)desc->chip);
  44         printk("->action(): %p\n", desc->action);
  45         if (desc->action) {
  46                 printk("->action->handler(): %p, ", desc->action->handler);
  47                 print_symbol("%s\n", (unsigned long)desc->action->handler);
  48         }
  49
  50         P(IRQ_INPROGRESS);
  51         P(IRQ_DISABLED);
  52         P(IRQ_PENDING);
  53         P(IRQ_REPLAY);
  54         P(IRQ_AUTODETECT);
  55         P(IRQ_WAITING);
  56         P(IRQ_LEVEL);
  57         P(IRQ_MASKED);
  58 #ifdef CONFIG_IRQ_PER_CPU
  59         P(IRQ_PER_CPU);
  60 #endif
  61         P(IRQ_NOPROBE);
  62         P(IRQ_NOREQUEST);
  63         P(IRQ_NOAUTOEN);
  64 }
  65
  66 #undef P
  67