1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* The industrial I/O - event passing to userspace 3 * 4 * Copyright (c) 2008-2011 Jonathan Cameron 5 */ 6 #ifndef _IIO_EVENTS_H_ 7 #define _IIO_EVENTS_H_ 8 9 #include <linux/iio/types.h> 10 #include <uapi/linux/iio/events.h> 11 12 /** 13 * IIO_EVENT_CODE() - create event identifier 14 * @chan_type: Type of the channel. Should be one of enum iio_chan_type. 15 * @diff: Whether the event is for an differential channel or not. 16 * @modifier: Modifier for the channel. Should be one of enum iio_modifier. 17 * @direction: Direction of the event. One of enum iio_event_direction. 18 * @type: Type of the event. Should be one of enum iio_event_type. 19 * @chan: Channel number for non-differential channels. 20 * @chan1: First channel number for differential channels. 21 * @chan2: Second channel number for differential channels. 22 */ 23 24 #define IIO_EVENT_CODE(chan_type, diff, modifier, direction, \ 25 type, chan, chan1, chan2) \ 26 (((u64)type << 56) | ((u64)diff << 55) | \ 27 ((u64)direction << 48) | ((u64)modifier << 40) | \ 28 ((u64)chan_type << 32) | (((u16)chan2) << 16) | ((u16)chan1) | \ 29 ((u16)chan)) 30 31 32 /** 33 * IIO_MOD_EVENT_CODE() - create event identifier for modified channels 34 * @chan_type: Type of the channel. Should be one of enum iio_chan_type. 35 * @number: Channel number. 36 * @modifier: Modifier for the channel. Should be one of enum iio_modifier. 37 * @type: Type of the event. Should be one of enum iio_event_type. 38 * @direction: Direction of the event. One of enum iio_event_direction. 39 */ 40 41 #define IIO_MOD_EVENT_CODE(chan_type, number, modifier, \ 42 type, direction) \ 43 IIO_EVENT_CODE(chan_type, 0, modifier, direction, type, number, 0, 0) 44 45 /** 46 * IIO_UNMOD_EVENT_CODE() - create event identifier for unmodified channels 47 * @chan_type: Type of the channel. Should be one of enum iio_chan_type. 48 * @number: Channel number. 49 * @type: Type of the event. Should be one of enum iio_event_type. 50 * @direction: Direction of the event. One of enum iio_event_direction. 51 */ 52 53 #define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction) \ 54 IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0) 55 56 #endif 57
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