1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
2 | /* The industrial I/O - event passing to userspace |
3 | * |
4 | * Copyright (c) 2008-2011 Jonathan Cameron |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify it |
7 | * under the terms of the GNU General Public License version 2 as published by |
8 | * the Free Software Foundation. |
9 | */ |
10 | #ifndef _UAPI_IIO_EVENTS_H_ |
11 | #define _UAPI_IIO_EVENTS_H_ |
12 | |
13 | #include <linux/ioctl.h> |
14 | #include <linux/types.h> |
15 | |
16 | /** |
17 | * struct iio_event_data - The actual event being pushed to userspace |
18 | * @id: event identifier |
19 | * @timestamp: best estimate of time of event occurrence (often from |
20 | * the interrupt handler) |
21 | */ |
22 | struct iio_event_data { |
23 | __u64 id; |
24 | __s64 timestamp; |
25 | }; |
26 | |
27 | #define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int) |
28 | |
29 | #define (mask) ((mask >> 56) & 0xFF) |
30 | |
31 | #define (mask) ((mask >> 48) & 0x7F) |
32 | |
33 | #define (mask) ((mask >> 32) & 0xFF) |
34 | |
35 | /* Event code number extraction depends on which type of event we have. |
36 | * Perhaps review this function in the future*/ |
37 | #define (mask) ((__s16)(mask & 0xFFFF)) |
38 | #define (mask) ((__s16)(((mask) >> 16) & 0xFFFF)) |
39 | |
40 | #define (mask) ((mask >> 40) & 0xFF) |
41 | #define (mask) (((mask) >> 55) & 0x1) |
42 | |
43 | #endif /* _UAPI_IIO_EVENTS_H_ */ |
44 | |