1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#include "common.h"
#include "iio_kernel_headers.h"
typedef struct {
int index;
int enabled;
char* type;
mraa_boolean_t lendian;
int signedd;
unsigned int offset;
uint64_t mask;
unsigned int bits_used;
unsigned int bytes;
unsigned int shift;
unsigned int location;
} mraa_iio_channel;
typedef struct {
char* name;
int enabled;
} mraa_iio_event;
/**
* @file
* @brief iio
*
* An iio context represents an IIO device
*
* @snippet iio_driver.c Interesting
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <stdint.h>
#include "common.h"
/**
* Opaque pointer definition to the internal struct _iio
*/
typedef struct _iio* mraa_iio_context;
/**
* Initialise iio context
*
* @param bus iio device to use
* @return i2c context or NULL
*/
mraa_iio_context mraa_iio_init(int device);
mraa_result_t mraa_iio_trigger_buffer(mraa_iio_context dev, void (*fptr)(char* data), void* args);
const char* mraa_iio_get_device_name(mraa_iio_context dev);
int mraa_iio_get_device_num_by_name(const char* name);
int mraa_iio_read_size(mraa_iio_context dev);
mraa_iio_channel* mraa_iio_get_channels(mraa_iio_context dev);
int mraa_iio_get_channel_count(mraa_iio_context dev);
mraa_result_t mraa_iio_read_float(mraa_iio_context dev, const char* filename, float* data);
mraa_result_t mraa_iio_read_int(mraa_iio_context dev, const char* filename, int* data);
mraa_result_t mraa_iio_read_string(mraa_iio_context dev, const char* filename, char* data, int max_len);
mraa_result_t mraa_iio_write_float(mraa_iio_context dev, const char* attr_chan, const float data);
mraa_result_t mraa_iio_write_int(mraa_iio_context dev, const char* attr_chan, const int data);
mraa_result_t mraa_iio_write_string(mraa_iio_context dev, const char* attr_chan, const char* data);
mraa_result_t mraa_iio_get_channel_data(mraa_iio_context dev);
mraa_result_t mraa_iio_get_event_data(mraa_iio_context dev);
mraa_result_t mraa_iio_event_poll(mraa_iio_context dev, struct iio_event_data* data);
mraa_result_t
mraa_iio_event_setup_callback(mraa_iio_context dev, void (*fptr)(struct iio_event_data* data, void* args), void* args);
mraa_result_t mraa_iio_event_extract_event(struct iio_event_data* event,
int* chan_type,
int* modifier,
int* type,
int* direction,
int* channel,
int* channel2,
int* different);
mraa_result_t mraa_iio_get_mounting_matrix(mraa_iio_context dev, float mm[9]);
mraa_result_t mraa_iio_create_trigger(mraa_iio_context dev, const char* trigger);
mraa_result_t mraa_iio_update_channels(mraa_iio_context dev);
/**
* De-inits an mraa_iio_context device
*
* @param dev The iio context
* @return Result of operation
*/
mraa_result_t mraa_iio_close(mraa_iio_context dev);
#ifdef __cplusplus
}
#endif
|
