Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0+ */
2/*
3 * Copyright (C) 2017-2018 Bartosz Golaszewski <brgl@bgdev.pl>
4 */
5
6#ifndef _LINUX_IRQ_SIM_H
7#define _LINUX_IRQ_SIM_H
8
9#include <linux/irq_work.h>
10#include <linux/device.h>
11
12/*
13 * Provides a framework for allocating simulated interrupts which can be
14 * requested like normal irqs and enqueued from process context.
15 */
16
17struct irq_sim_work_ctx {
18 struct irq_work work;
19 unsigned long *pending;
20};
21
22struct irq_sim_irq_ctx {
23 int irqnum;
24 bool enabled;
25};
26
27struct irq_sim {
28 struct irq_sim_work_ctx work_ctx;
29 int irq_base;
30 unsigned int irq_count;
31 struct irq_sim_irq_ctx *irqs;
32};
33
34int irq_sim_init(struct irq_sim *sim, unsigned int num_irqs);
35int devm_irq_sim_init(struct device *dev, struct irq_sim *sim,
36 unsigned int num_irqs);
37void irq_sim_fini(struct irq_sim *sim);
38void irq_sim_fire(struct irq_sim *sim, unsigned int offset);
39int irq_sim_irqnum(struct irq_sim *sim, unsigned int offset);
40
41#endif /* _LINUX_IRQ_SIM_H */