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 
13 struct iio_dev;
14 struct 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  **/
30 struct 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 		    ...);
48 void iio_dealloc_pollfunc(struct iio_poll_func *pf);
49 irqreturn_t iio_pollfunc_store_time(int irq, void *p);
50 
51 void iio_trigger_notify_done(struct iio_trigger *trig);
52 
53 #endif
54