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56 lines
2.1 KiB
56 lines
2.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* The industrial I/O - event passing to userspace |
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* |
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* Copyright (c) 2008-2011 Jonathan Cameron |
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*/ |
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#ifndef _IIO_EVENTS_H_ |
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#define _IIO_EVENTS_H_ |
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#include <linux/iio/types.h> |
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#include <uapi/linux/iio/events.h> |
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/** |
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* IIO_EVENT_CODE() - create event identifier |
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* @chan_type: Type of the channel. Should be one of enum iio_chan_type. |
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* @diff: Whether the event is for an differential channel or not. |
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* @modifier: Modifier for the channel. Should be one of enum iio_modifier. |
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* @direction: Direction of the event. One of enum iio_event_direction. |
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* @type: Type of the event. Should be one of enum iio_event_type. |
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* @chan: Channel number for non-differential channels. |
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* @chan1: First channel number for differential channels. |
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* @chan2: Second channel number for differential channels. |
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*/ |
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#define IIO_EVENT_CODE(chan_type, diff, modifier, direction, \ |
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type, chan, chan1, chan2) \ |
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(((u64)type << 56) | ((u64)diff << 55) | \ |
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((u64)direction << 48) | ((u64)modifier << 40) | \ |
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((u64)chan_type << 32) | (((u16)chan2) << 16) | ((u16)chan1) | \ |
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((u16)chan)) |
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/** |
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* IIO_MOD_EVENT_CODE() - create event identifier for modified channels |
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* @chan_type: Type of the channel. Should be one of enum iio_chan_type. |
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* @number: Channel number. |
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* @modifier: Modifier for the channel. Should be one of enum iio_modifier. |
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* @type: Type of the event. Should be one of enum iio_event_type. |
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* @direction: Direction of the event. One of enum iio_event_direction. |
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*/ |
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#define IIO_MOD_EVENT_CODE(chan_type, number, modifier, \ |
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type, direction) \ |
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IIO_EVENT_CODE(chan_type, 0, modifier, direction, type, number, 0, 0) |
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/** |
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* IIO_UNMOD_EVENT_CODE() - create event identifier for unmodified channels |
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* @chan_type: Type of the channel. Should be one of enum iio_chan_type. |
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* @number: Channel number. |
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* @type: Type of the event. Should be one of enum iio_event_type. |
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* @direction: Direction of the event. One of enum iio_event_direction. |
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*/ |
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#define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction) \ |
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IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0) |
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#endif
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