Quelle  irqnr.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_IRQNR_H
#define _LINUX_IRQNR_H

#include <uapi/linux/irqnr.h>


unsigned int irq_get_nr_irqs(void) __pure;
unsigned int irq_set_nr_irqs(unsigned int nr);
extern struct irq_desc *irq_to_desc(unsigned int irq);
unsigned int irq_get_next_irq(unsigned int offset);

#define for_each_irq_desc(irq, desc)                                      \
 for (unsigned int __nr_irqs__ = irq_get_nr_irqs(); __nr_irqs__;   \
      __nr_irqs__ = 0)                                             \
  for (irq = 0, desc = irq_to_desc(irq); irq < __nr_irqs__; \
       irq++, desc = irq_to_desc(irq))                      \
   if (!desc)                                        \
    ;                                         \
   else

# define for_each_irq_desc_reverse(irq, desc)    \
 for (irq = irq_get_nr_irqs() - 1, desc = irq_to_desc(irq); \
      irq >= 0; irq--, desc = irq_to_desc(irq))   \
  if (!desc)      \
   ;      \
  else

#define for_each_active_irq(irq)                                        \
 for (unsigned int __nr_irqs__ = irq_get_nr_irqs(); __nr_irqs__; \
      __nr_irqs__ = 0)                                           \
  for (irq = irq_get_next_irq(0); irq < __nr_irqs__;      \
       irq = irq_get_next_irq(irq + 1))

#define for_each_irq_nr(irq)                                            \
 for (unsigned int __nr_irqs__ = irq_get_nr_irqs(); __nr_irqs__; \
      __nr_irqs__ = 0)                                           \
  for (irq = 0; irq < __nr_irqs__; irq++)

#endif