1/* The industrial I/O core, trigger consumer functions
2 *
3 * Copyright (c) 2008-2011 Jonathan Cameron
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 */
9
10/**
11 * struct iio_poll_func - poll function pair
12 *
13 * @indio_dev:			data specific to device (passed into poll func)
14 * @h:				the function that is actually run on trigger
15 * @thread:			threaded interrupt part
16 * @type:			the type of interrupt (basically if oneshot)
17 * @name:			name used to identify the trigger consumer.
18 * @irq:			the corresponding irq as allocated from the
19 *				trigger pool
20 * @timestamp:			some devices need a timestamp grabbed as soon
21 *				as possible after the trigger - hence handler
22 *				passes it via here.
23 **/
24struct iio_poll_func {
25	struct iio_dev *indio_dev;
26	irqreturn_t (*h)(int irq, void *p);
27	irqreturn_t (*thread)(int irq, void *p);
28	int type;
29	char *name;
30	int irq;
31	s64 timestamp;
32};
33
34
35struct iio_poll_func
36*iio_alloc_pollfunc(irqreturn_t (*h)(int irq, void *p),
37		    irqreturn_t (*thread)(int irq, void *p),
38		    int type,
39		    struct iio_dev *indio_dev,
40		    const char *fmt,
41		    ...);
42void iio_dealloc_pollfunc(struct iio_poll_func *pf);
43irqreturn_t iio_pollfunc_store_time(int irq, void *p);
44
45void iio_trigger_notify_done(struct iio_trigger *trig);
46
47/*
48 * Two functions for common case where all that happens is a pollfunc
49 * is attached and detached from a trigger
50 */
51int iio_triggered_buffer_postenable(struct iio_dev *indio_dev);
52int iio_triggered_buffer_predisable(struct iio_dev *indio_dev);
53