1 /*
2 * Author: Jon Trulson <jtrulson@ics.com>
3 * Copyright (c) 2015 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
25 #include <iostream>
26
27 #include "ad8232.h"
28
29 using namespace upm;
30 using namespace std;
31
AD8232(int loPlus,int loMinus,int output,float aref)32 AD8232::AD8232(int loPlus, int loMinus, int output, float aref) :
33 m_gpioLOPlus(loPlus), m_gpioLOMinus(loMinus), m_aioOUT(output)
34 {
35 m_gpioLOPlus.dir(mraa::DIR_IN);
36 m_gpioLOMinus.dir(mraa::DIR_IN);
37
38 m_aref = aref;
39 m_ares = (1 << m_aioOUT.getBit());
40 }
41
~AD8232()42 AD8232::~AD8232()
43 {
44 }
45
value()46 int AD8232::value()
47 {
48 if (m_gpioLOPlus.read() || m_gpioLOMinus.read())
49 return 0;
50 else
51 return m_aioOUT.read();
52 }
53