include/linux/irq_sim.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2017-2018 Bartosz Golaszewski <brgl@bgdev.pl>
   4  * Copyright (C) 2020 Bartosz Golaszewski <bgolaszewski@baylibre.com>
   5  */
   6
   7 #ifndef _LINUX_IRQ_SIM_H
   8 #define _LINUX_IRQ_SIM_H
   9
  10 #include <linux/device.h>
  11 #include <linux/fwnode.h>
  12 #include <linux/irqdomain.h>
  13
  14 /*
  15  * Provides a framework for allocating simulated interrupts which can be
  16  * requested like normal irqs and enqueued from process context.
  17  */
  18
  19 struct irq_sim_ops {
  20         int (*irq_sim_irq_requested)(struct irq_domain *domain,
  21                                      irq_hw_number_t hwirq, void *data);
  22         void (*irq_sim_irq_released)(struct irq_domain *domain,
  23                                      irq_hw_number_t hwirq, void *data);
  24 };
  25
  26 struct irq_domain *irq_domain_create_sim(struct fwnode_handle *fwnode,
  27                                          unsigned int num_irqs);
  28 struct irq_domain *devm_irq_domain_create_sim(struct device *dev,
  29                                               struct fwnode_handle *fwnode,
  30                                               unsigned int num_irqs);
  31 struct irq_domain *irq_domain_create_sim_full(struct fwnode_handle *fwnode,
  32                                               unsigned int num_irqs,
  33                                               const struct irq_sim_ops *ops,
  34                                               void *data);
  35 struct irq_domain *
  36 devm_irq_domain_create_sim_full(struct device *dev,
  37                                 struct fwnode_handle *fwnode,
  38                                 unsigned int num_irqs,
  39                                 const struct irq_sim_ops *ops,
  40                                 void *data);
  41 void irq_domain_remove_sim(struct irq_domain *domain);
  42
  43 #endif /* _LINUX_IRQ_SIM_H */