Cregit: Linux 6.9: events.h

Contributors: 7
Author	Tokens	Token Proportion	Commits	Commit Proportion
Jonathan Cameron	47	56.63%	6	40.00%
Lars-Peter Clausen	21	25.30%	4	26.67%
Michael Hennerich	7	8.43%	1	6.67%
Daniel Baluta	5	6.02%	1	6.67%
Lucas De Marchi	1	1.20%	1	6.67%
Greg Kroah-Hartman	1	1.20%	1	6.67%
Cristina Ciocan	1	1.20%	1	6.67%
Total	83		15

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/* The industrial I/O - event passing to userspace
 *
 * 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 _UAPI_IIO_EVENTS_H_
#define _UAPI_IIO_EVENTS_H_

#include <linux/ioctl.h>
#include <linux/types.h>

/**
 * struct iio_event_data - The actual event being pushed to userspace
 * @id:		event identifier
 * @timestamp:	best estimate of time of event occurrence (often from
 *		the interrupt handler)
 */
struct iio_event_data {
	__u64	id;
	__s64	timestamp;
};

#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)

#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)

#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0x7F)

#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)

/* Event code number extraction depends on which type of event we have.
 * Perhaps review this function in the future*/
#define IIO_EVENT_CODE_EXTRACT_CHAN(mask) ((__s16)(mask & 0xFFFF))
#define IIO_EVENT_CODE_EXTRACT_CHAN2(mask) ((__s16)(((mask) >> 16) & 0xFFFF))

#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
#define IIO_EVENT_CODE_EXTRACT_DIFF(mask) (((mask) >> 55) & 0x1)

#endif /* _UAPI_IIO_EVENTS_H_ */