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    IRQ_TRIGGER_LEVEL = 1,
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    IRQ_TRIGGER_LEVEL = 1,
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    IRQ_TRIGGER_EDGE
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    IRQ_TRIGGER_EDGE
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} irq_trigger_t;
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} irq_trigger_t;
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struct irq;
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struct irq;
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typedef void (* irq_handler_t)(struct irq *irq, void *arg, ...);
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typedef void (* irq_handler_t)(struct irq *);
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/** Type for function used to clear the interrupt. */
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/** Type for function used to clear the interrupt. */
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typedef void (* cir_t)(void *arg, inr_t inr);
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typedef void (* cir_t)(void *, inr_t);
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/** IPC notification config structure.
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/** IPC notification config structure.
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 *
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 *
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 * Primarily, this structure is encapsulated in the irq_t structure.
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 * Primarily, this structure is encapsulated in the irq_t structure.
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 * It is protected by irq_t::lock.
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 * It is protected by irq_t::lock.
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    /** Actual IRQ number. -1 if not yet assigned. */
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    /** Actual IRQ number. -1 if not yet assigned. */
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    inr_t inr;
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    inr_t inr;
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    /** Trigger level of the IRQ. */
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    /** Trigger level of the IRQ. */
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    irq_trigger_t trigger;
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    irq_trigger_t trigger;
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    /** Claim ownership of the IRQ. */
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    /** Claim ownership of the IRQ. */
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    irq_ownership_t (* claim)(void);
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    irq_ownership_t (* claim)(void *);
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    /** Handler for this IRQ and device. */
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    /** Handler for this IRQ and device. */
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    irq_handler_t handler;
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    irq_handler_t handler;
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    /** Argument for the handler. */
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    /** Instance argument for the handler and the claim function. */
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    void *arg;
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    void *instance;
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    /** Clear interrupt routine. */
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    /** Clear interrupt routine. */
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    cir_t cir;
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    cir_t cir;
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    /** First argument to the clear interrupt routine. */
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    /** First argument to the clear interrupt routine. */
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    void *cir_arg;
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    void *cir_arg;
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    /** Notification configuration structure. */
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    /** Notification configuration structure. */
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    ipc_notif_cfg_t notif_cfg;
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    ipc_notif_cfg_t notif_cfg;
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} irq_t;
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} irq_t;
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extern void irq_init(count_t inrs, count_t chains);
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extern void irq_init(count_t, count_t);
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extern void irq_initialize(irq_t *irq);
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extern void irq_initialize(irq_t *);
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extern void irq_register(irq_t *irq);
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extern void irq_register(irq_t *);
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extern irq_t *irq_dispatch_and_lock(inr_t inr);
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extern irq_t *irq_dispatch_and_lock(inr_t);
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extern irq_t *irq_find_and_lock(inr_t inr, devno_t devno);
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extern irq_t *irq_find_and_lock(inr_t, devno_t);
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#endif
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#endif
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#endif
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#endif
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