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
