60 строки
2.2 KiB
C
60 строки
2.2 KiB
C
/* 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 _IIO_EVENTS_H_
|
|
#define _IIO_EVENTS_H_
|
|
|
|
#include <linux/iio/types.h>
|
|
#include <uapi/linux/iio/events.h>
|
|
|
|
/**
|
|
* IIO_EVENT_CODE() - create event identifier
|
|
* @chan_type: Type of the channel. Should be one of enum iio_chan_type.
|
|
* @diff: Whether the event is for an differential channel or not.
|
|
* @modifier: Modifier for the channel. Should be one of enum iio_modifier.
|
|
* @direction: Direction of the event. One of enum iio_event_direction.
|
|
* @type: Type of the event. Should be one of enum iio_event_type.
|
|
* @chan: Channel number for non-differential channels.
|
|
* @chan1: First channel number for differential channels.
|
|
* @chan2: Second channel number for differential channels.
|
|
*/
|
|
|
|
#define IIO_EVENT_CODE(chan_type, diff, modifier, direction, \
|
|
type, chan, chan1, chan2) \
|
|
(((u64)type << 56) | ((u64)diff << 55) | \
|
|
((u64)direction << 48) | ((u64)modifier << 40) | \
|
|
((u64)chan_type << 32) | (((u16)chan2) << 16) | ((u16)chan1) | \
|
|
((u16)chan))
|
|
|
|
|
|
/**
|
|
* IIO_MOD_EVENT_CODE() - create event identifier for modified channels
|
|
* @chan_type: Type of the channel. Should be one of enum iio_chan_type.
|
|
* @number: Channel number.
|
|
* @modifier: Modifier for the channel. Should be one of enum iio_modifier.
|
|
* @type: Type of the event. Should be one of enum iio_event_type.
|
|
* @direction: Direction of the event. One of enum iio_event_direction.
|
|
*/
|
|
|
|
#define IIO_MOD_EVENT_CODE(chan_type, number, modifier, \
|
|
type, direction) \
|
|
IIO_EVENT_CODE(chan_type, 0, modifier, direction, type, number, 0, 0)
|
|
|
|
/**
|
|
* IIO_UNMOD_EVENT_CODE() - create event identifier for unmodified channels
|
|
* @chan_type: Type of the channel. Should be one of enum iio_chan_type.
|
|
* @number: Channel number.
|
|
* @type: Type of the event. Should be one of enum iio_event_type.
|
|
* @direction: Direction of the event. One of enum iio_event_direction.
|
|
*/
|
|
|
|
#define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction) \
|
|
IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0)
|
|
|
|
#endif
|