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/* The industrial I/O core, trigger consumer functions
*
* Copyright (c) 2008-2011 Jonathan Cameron
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#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