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 */
44
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