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 #include <string>
27 #include <stdexcept>
28
29 #include "isd1820.h"
30
31 using namespace upm;
32 using namespace std;
33
ISD1820(int playPin,int recPin)34 ISD1820::ISD1820(int playPin, int recPin)
35 {
36 if ( !(m_gpioPlay = mraa_gpio_init(playPin)) )
37 {
38 throw std::invalid_argument(std::string(__FUNCTION__) +
39 ": mraa_gpio_init(playPin) failed, invalid pin?");
40 return;
41 }
42
43 mraa_gpio_dir(m_gpioPlay, MRAA_GPIO_OUT);
44
45 if ( !(m_gpioRec = mraa_gpio_init(recPin)) )
46 {
47 throw std::invalid_argument(std::string(__FUNCTION__) +
48 ": mraa_gpio_init(recPin) failed, invalid pin?");
49 return;
50 }
51
52 mraa_gpio_dir(m_gpioRec, MRAA_GPIO_OUT);
53
54 // make sure we are not recording or playing
55 play(false);
56 record(false);
57 }
58
~ISD1820()59 ISD1820::~ISD1820()
60 {
61 mraa_gpio_close(m_gpioPlay);
62 mraa_gpio_close(m_gpioRec);
63 }
64
play(bool enable)65 void ISD1820::play(bool enable)
66 {
67 if (enable)
68 {
69 // make sure we are not recording
70 record(false);
71 mraa_gpio_write(m_gpioPlay, 1);
72 }
73 else
74 {
75 mraa_gpio_write(m_gpioPlay, 0);
76 }
77 }
78
record(bool enable)79 void ISD1820::record(bool enable)
80 {
81 if (enable)
82 {
83 // make sure we are not playing
84 play(false);
85 mraa_gpio_write(m_gpioRec, 1);
86 }
87 else
88 {
89 mraa_gpio_write(m_gpioRec, 0);
90 }
91 }
92