projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b19af510 BG |
1 | #ifndef _LINUX_IRQ_SIM_H |
| 2 | #define _LINUX_IRQ_SIM_H | |
| 3 | /* | |
| 4 | * Copyright (C) 2017 Bartosz Golaszewski <brgl@bgdev.pl> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify it | |
| 7 | * under the terms of the GNU General Public License as published by the | |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 9 | * option) any later version. | |
| 10 | */ | |
| 11 | ||
| 12 | #include <linux/irq_work.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_work_ctx { | |
| 20 | struct irq_work work; | |
| 21 | int irq; | |
| 22 | }; | |
| 23 | ||
| 24 | struct irq_sim_irq_ctx { | |
| 25 | int irqnum; | |
| 26 | bool enabled; | |
| 27 | }; | |
| 28 | ||
| 29 | struct irq_sim { | |
| 30 | struct irq_sim_work_ctx work_ctx; | |
| 31 | int irq_base; | |
| 32 | unsigned int irq_count; | |
| 33 | struct irq_sim_irq_ctx *irqs; | |
| 34 | }; | |
| 35 | ||
| 36 | int irq_sim_init(struct irq_sim *sim, unsigned int num_irqs); | |
| 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 */ |