upm
1.7.1
Sensor/Actuator repository for libmraa (v2.0.0)
Main Page
Related Pages
UPM Libraries
Namespaces
Data Structures
Files
File List
Globals
src
rotaryencoder
rotaryencoder.h
Go to the documentation of this file.
1
/*
2
* Author: Jon Trulson <jtrulson@ics.com>
3
* Copyright (c) 2016 Intel Corporation.
4
*
5
* Permission is hereby granted, free of charge, to any person obtaining
6
* a copy of this software and associated documentation files (the
7
* "Software"), to deal in the Software without restriction, including
8
* without limitation the rights to use, copy, modify, merge, publish,
9
* distribute, sublicense, and/or sell copies of the Software, and to
10
* permit persons to whom the Software is furnished to do so, subject to
11
* the following conditions:
12
*
13
* The above copyright notice and this permission notice shall be
14
* included in all copies or substantial portions of the Software.
15
*
16
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23
*/
24
#pragma once
25
26
#include <stdlib.h>
27
#include <stdio.h>
28
#include <upm.h>
29
30
#include <mraa/gpio.h>
31
32
#ifdef __cplusplus
33
extern
"C"
{
34
#endif
35
47
typedef
struct
_rotaryencoder_context
{
48
mraa_gpio_context gpioA;
49
mraa_gpio_context gpioB;
50
51
volatile
int
position;
52
} *
rotaryencoder_context
;
53
60
rotaryencoder_context
rotaryencoder_init
(
int
pin_a,
int
pin_b);
61
65
void
rotaryencoder_close
(
rotaryencoder_context
dev);
66
72
void
rotaryencoder_set_position
(
const
rotaryencoder_context
dev,
73
int
count);
74
79
int
rotaryencoder_get_position
(
const
rotaryencoder_context
dev);
80
81
82
#ifdef __cplusplus
83
}
84
#endif
rotaryencoder_context
struct _rotaryencoder_context * rotaryencoder_context
rotaryencoder_init
rotaryencoder_context rotaryencoder_init(int pin_a, int pin_b)
Definition:
rotaryencoder.c:45
rotaryencoder_close
void rotaryencoder_close(rotaryencoder_context dev)
Definition:
rotaryencoder.c:104
rotaryencoder_get_position
int rotaryencoder_get_position(const rotaryencoder_context dev)
Definition:
rotaryencoder.c:127
rotaryencoder_set_position
void rotaryencoder_set_position(const rotaryencoder_context dev, int count)
Definition:
rotaryencoder.c:120
_rotaryencoder_context
Definition:
rotaryencoder.h:47
Generated on Wed Nov 21 2018 10:43:52 for upm by
1.8.11