root/kernel/irq/internals.h

INCLUDED FROM

DEFINITIONS

1. register_irq_proc
2. register_handler_proc
3. unregister_handler_proc
4. print_irq_desc

/*
 * IRQ subsystem internal functions and variables:
 */

extern int noirqdebug;

/* Set default functions for irq_chip structures: */
extern void irq_chip_set_defaults(struct irq_chip *chip);

/* Set default handler: */
extern void compat_irq_chip_set_default_handler(struct irq_desc *desc);

#ifdef CONFIG_PROC_FS
extern void register_irq_proc(unsigned int irq);
extern void register_handler_proc(unsigned int irq, struct irqaction *action);
extern void unregister_handler_proc(unsigned int irq, struct irqaction *action);
#else
static inline void register_irq_proc(unsigned int irq) { }
static inline void register_handler_proc(unsigned int irq,
                                         struct irqaction *action) { }
static inline void unregister_handler_proc(unsigned int irq,
                                           struct irqaction *action) { }
#endif

/*
 * Debugging printout:
 */

#include <linux/kallsyms.h>

#define P(f) if (desc->status & f) printk("%14s set\n", #f)

static inline void print_irq_desc(unsigned int irq, struct irq_desc *desc)
{
        printk("irq %d, desc: %p, depth: %d, count: %d, unhandled: %d\n",
                irq, desc, desc->depth, desc->irq_count, desc->irqs_unhandled);
        printk("->handle_irq():  %p, ", desc->handle_irq);
        print_symbol("%s\n", (unsigned long)desc->handle_irq);
        printk("->chip(): %p, ", desc->chip);
        print_symbol("%s\n", (unsigned long)desc->chip);
        printk("->action(): %p\n", desc->action);
        if (desc->action) {
                printk("->action->handler(): %p, ", desc->action->handler);
                print_symbol("%s\n", (unsigned long)desc->action->handler);
        }

        P(IRQ_INPROGRESS);
        P(IRQ_DISABLED);
        P(IRQ_PENDING);
        P(IRQ_REPLAY);
        P(IRQ_AUTODETECT);
        P(IRQ_WAITING);
        P(IRQ_LEVEL);
        P(IRQ_MASKED);
#ifdef CONFIG_IRQ_PER_CPU
        P(IRQ_PER_CPU);
#endif
        P(IRQ_NOPROBE);
        P(IRQ_NOREQUEST);
        P(IRQ_NOAUTOEN);
}

#undef P