diff options
Diffstat (limited to 'include/linux/irq_sim.h')
| -rw-r--r-- | include/linux/irq_sim.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/irq_sim.h b/include/linux/irq_sim.h new file mode 100644 index 000000000000..0380d899b955 --- /dev/null +++ b/include/linux/irq_sim.h @@ -0,0 +1,44 @@ +#ifndef _LINUX_IRQ_SIM_H +#define _LINUX_IRQ_SIM_H +/* + * Copyright (C) 2017 Bartosz Golaszewski <brgl@bgdev.pl> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#include <linux/irq_work.h> +#include <linux/device.h> + +/* + * Provides a framework for allocating simulated interrupts which can be + * requested like normal irqs and enqueued from process context. + */ + +struct irq_sim_work_ctx { + struct irq_work work; + int irq; +}; + +struct irq_sim_irq_ctx { + int irqnum; + bool enabled; +}; + +struct irq_sim { + struct irq_sim_work_ctx work_ctx; + int irq_base; + unsigned int irq_count; + struct irq_sim_irq_ctx *irqs; +}; + +int irq_sim_init(struct irq_sim *sim, unsigned int num_irqs); +int devm_irq_sim_init(struct device *dev, struct irq_sim *sim, + unsigned int num_irqs); +void irq_sim_fini(struct irq_sim *sim); +void irq_sim_fire(struct irq_sim *sim, unsigned int offset); +int irq_sim_irqnum(struct irq_sim *sim, unsigned int offset); + +#endif /* _LINUX_IRQ_SIM_H */ |