trigger_consumer.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* The industrial I/O core, trigger consumer functions
 3 *
 4 * Copyright (c) 2008-2011 Jonathan Cameron
 5 */
 6
 7#ifndef __LINUX_IIO_TRIGGER_CONSUMER_H__
 8#define __LINUX_IIO_TRIGGER_CONSUMER_H__
 9
10#include <linux/interrupt.h>
11#include <linux/types.h>
12
13struct iio_dev;
14struct iio_trigger;
15
16/**
17 * struct iio_poll_func - poll function pair
18 *
19 * @indio_dev:			data specific to device (passed into poll func)
20 * @h:				the function that is actually run on trigger
21 * @thread:			threaded interrupt part
22 * @type:			the type of interrupt (basically if oneshot)
23 * @name:			name used to identify the trigger consumer.
24 * @irq:			the corresponding irq as allocated from the
25 *				trigger pool
26 * @timestamp:			some devices need a timestamp grabbed as soon
27 *				as possible after the trigger - hence handler
28 *				passes it via here.
29 **/
30struct iio_poll_func {
31	struct iio_dev *indio_dev;
32	irqreturn_t (*h)(int irq, void *p);
33	irqreturn_t (*thread)(int irq, void *p);
34	int type;
35	char *name;
36	int irq;
37	s64 timestamp;
38};
39
40
41__printf(5, 6) struct iio_poll_func
42*iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p),
43		    irqreturn_t (*thread)(int irq, void *p),
44		    int type,
45		    struct iio_dev *indio_dev,
46		    const char *fmt,
47		    ...);
48void iio_dealloc_pollfunc(struct iio_poll_func *pf);
49irqreturn_t iio_pollfunc_store_time(int irq, void *p);
50
51void iio_trigger_notify_done(struct iio_trigger *trig);
52
53#endif