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b5c5f395 | 1 | /* SPDX-License-Identifier: GPL-2.0+ */ |
b19af510 | 2 | /* |
b5c5f395 | 3 | * Copyright (C) 2017-2018 Bartosz Golaszewski <brgl@bgdev.pl> |
b19af510 BG |
4 | */ |
5 | ||
b5c5f395 BG |
6 | #ifndef _LINUX_IRQ_SIM_H |
7 | #define _LINUX_IRQ_SIM_H | |
8 | ||
b19af510 | 9 | #include <linux/irq_work.h> |
44e72c7e | 10 | #include <linux/device.h> |
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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 | ||
17 | struct irq_sim_work_ctx { | |
18 | struct irq_work work; | |
19 | int irq; | |
20 | }; | |
21 | ||
22 | struct irq_sim_irq_ctx { | |
23 | int irqnum; | |
24 | bool enabled; | |
25 | }; | |
26 | ||
27 | struct 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 | ||
34 | int irq_sim_init(struct irq_sim *sim, unsigned int num_irqs); | |
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35 | int devm_irq_sim_init(struct device *dev, struct irq_sim *sim, |
36 | unsigned int num_irqs); | |
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37 | void irq_sim_fini(struct irq_sim *sim); |
38 | void irq_sim_fire(struct irq_sim *sim, unsigned int offset); | |
39 | int irq_sim_irqnum(struct irq_sim *sim, unsigned int offset); | |
40 | ||
41 | #endif /* _LINUX_IRQ_SIM_H */ |