1 /*
2  * Author: Zion Orent <sorent@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 <string>
26 #include <stdexcept>
27 
28 #include "groveeldriver.h"
29 
30 using namespace upm;
31 
GroveElDriver(int pin)32 GroveElDriver::GroveElDriver(int pin)
33 {
34     if ( !(m_gpio = mraa_gpio_init(pin)) )
35       {
36         throw std::invalid_argument(std::string(__FUNCTION__) +
37                                     ": mraa_gpio_init() failed, invalid pin?");
38         return;
39       }
40     mraa_gpio_dir(m_gpio, MRAA_GPIO_OUT);
41 }
42 
~GroveElDriver()43 GroveElDriver::~GroveElDriver()
44 {
45     mraa_gpio_close(m_gpio);
46 }
47 
on()48 void GroveElDriver::on()
49 {
50 	mraa_result_t error = MRAA_SUCCESS;
51 	error = mraa_gpio_write (m_gpio, HIGH);
52 	if (error != MRAA_SUCCESS)
53 		mraa_result_print(error);
54 }
55 
off()56 void GroveElDriver::off()
57 {
58 	mraa_result_t error = MRAA_SUCCESS;
59 	error = mraa_gpio_write (m_gpio, LOW);
60 	if (error != MRAA_SUCCESS)
61 		mraa_result_print(error);
62 }
63