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
19struct 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
26struct irq_domain *irq_domain_create_sim(struct fwnode_handle *fwnode,
27					 unsigned int num_irqs);
28struct irq_domain *devm_irq_domain_create_sim(struct device *dev,
29					      struct fwnode_handle *fwnode,
30					      unsigned int num_irqs);
31struct 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);
35struct irq_domain *
36devm_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);
41void irq_domain_remove_sim(struct irq_domain *domain);
42
43#endif /* _LINUX_IRQ_SIM_H */