/* SPDX-License-Identifier: GPL-2.0-only */ /* The industrial I/O core, trigger consumer functions * * Copyright (c) 2008-2011 Jonathan Cameron */ #ifndef __LINUX_IIO_TRIGGER_CONSUMER_H__ #define __LINUX_IIO_TRIGGER_CONSUMER_H__ #include <linux/interrupt.h> #include <linux/types.h> struct iio_dev; struct iio_trigger; /** * struct iio_poll_func - poll function pair * * @indio_dev: data specific to device (passed into poll func) * @h: the function that is actually run on trigger * @thread: threaded interrupt part * @type: the type of interrupt (basically if oneshot) * @name: name used to identify the trigger consumer. * @irq: the corresponding irq as allocated from the * trigger pool * @timestamp: some devices need a timestamp grabbed as soon * as possible after the trigger - hence handler * passes it via here. **/ struct iio_poll_func { struct iio_dev *indio_dev; irqreturn_t (*h)(int irq, void *p); irqreturn_t (*thread)(int irq, void *p); int type; char *name; int irq; s64 timestamp; }; struct iio_poll_func *iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p), irqreturn_t (*thread)(int irq, void *p), int type, struct iio_dev *indio_dev, const char *fmt, ...); void iio_dealloc_pollfunc(struct iio_poll_func *pf); irqreturn_t iio_pollfunc_store_time(int irq, void *p); void iio_trigger_notify_done(struct iio_trigger *trig); /* * Two functions for common case where all that happens is a pollfunc * is attached and detached from a trigger */ int iio_triggered_buffer_postenable(struct iio_dev *indio_dev); int iio_triggered_buffer_predisable(struct iio_dev *indio_dev); #endif