/* 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