1 /* The industrial I/O - event passing to userspace 2 * 3 * Copyright (c) 2008-2011 Jonathan Cameron 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 as published by 7 * the Free Software Foundation. 8 */ 9 #ifndef _IIO_EVENTS_H_ 10 #define _IIO_EVENTS_H_ 11 12 #include <linux/iio/types.h> 13 #include <uapi/linux/iio/events.h> 14 15 /** 16 * IIO_EVENT_CODE() - create event identifier 17 * @chan_type: Type of the channel. Should be one of enum iio_chan_type. 18 * @diff: Whether the event is for an differential channel or not. 19 * @modifier: Modifier for the channel. Should be one of enum iio_modifier. 20 * @direction: Direction of the event. One of enum iio_event_direction. 21 * @type: Type of the event. Should be one of enum iio_event_type. 22 * @chan: Channel number for non-differential channels. 23 * @chan1: First channel number for differential channels. 24 * @chan2: Second channel number for differential channels. 25 */ 26 27 #define IIO_EVENT_CODE(chan_type, diff, modifier, direction, \ 28 type, chan, chan1, chan2) \ 29 (((u64)type << 56) | ((u64)diff << 55) | \ 30 ((u64)direction << 48) | ((u64)modifier << 40) | \ 31 ((u64)chan_type << 32) | (((u16)chan2) << 16) | ((u16)chan1) | \ 32 ((u16)chan)) 33 34 35 /** 36 * IIO_MOD_EVENT_CODE() - create event identifier for modified channels 37 * @chan_type: Type of the channel. Should be one of enum iio_chan_type. 38 * @number: Channel number. 39 * @modifier: Modifier for the channel. Should be one of enum iio_modifier. 40 * @type: Type of the event. Should be one of enum iio_event_type. 41 * @direction: Direction of the event. One of enum iio_event_direction. 42 */ 43 44 #define IIO_MOD_EVENT_CODE(chan_type, number, modifier, \ 45 type, direction) \ 46 IIO_EVENT_CODE(chan_type, 0, modifier, direction, type, number, 0, 0) 47 48 /** 49 * IIO_UNMOD_EVENT_CODE() - create event identifier for unmodified channels 50 * @chan_type: Type of the channel. Should be one of enum iio_chan_type. 51 * @number: Channel number. 52 * @type: Type of the event. Should be one of enum iio_event_type. 53 * @direction: Direction of the event. One of enum iio_event_direction. 54 */ 55 56 #define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction) \ 57 IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0) 58 59 #endif 60