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      1 /*
      2  * Author: Zion Orent <sorent (at) ics.com>
      3  * Copyright (c) 2014 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 "grovespeaker.h"
     30 
     31 using namespace upm;
     32 
     33 GroveSpeaker::GroveSpeaker(int pin)
     34 {
     35   if ( !(m_gpio = mraa_gpio_init(pin)) )
     36     throw std::invalid_argument(std::string(__FUNCTION__) +
     37                                 ": mraa_gpio_init() failed, invalid pin?");
     38 
     39     mraa_gpio_dir(m_gpio, MRAA_GPIO_OUT);
     40 	m_note_list['a'] = storeNote(1136, 1073, 568, 536, 284, 268);
     41 	m_note_list['b'] = storeNote(1012, 0, 506, 0, 253, 0);
     42 	m_note_list['c'] = storeNote(1911, 1804, 956, 902, 478, 451);
     43 	m_note_list['d'] = storeNote(1703, 1607, 851, 804, 426, 402);
     44 	m_note_list['e'] = storeNote(1517, 0, 758, 0, 379, 0);
     45 	m_note_list['f'] = storeNote(1432, 1351, 716, 676, 358, 338);
     46 	m_note_list['g'] = storeNote(1276, 1204, 638, 602, 319, 301);
     47 }
     48 
     49 GroveSpeaker::~GroveSpeaker()
     50 {
     51     mraa_gpio_close(m_gpio);
     52 }
     53 
     54 NoteData GroveSpeaker::storeNote(int noteDelayLow, int noteDelayLowSharp,
     55                                  int noteDelayMed, int noteDelayMedSharp,
     56                                  int noteDelayHigh, int noteDelayHighSharp)
     57 {
     58 	NoteData note;
     59 	note.delayTimeLow = noteDelayLow;
     60 	note.delayTimeLowSharp = noteDelayLowSharp;
     61 	note.delayTimeMed = noteDelayMed;
     62 	note.delayTimeMedSharp = noteDelayMedSharp;
     63 	note.delayTimeHigh = noteDelayHigh;
     64 	note.delayTimeHighSharp = noteDelayHighSharp;
     65 	return note;
     66 }
     67 
     68 void GroveSpeaker::playAll()
     69 {
     70 	playSound('c', false, "low");
     71 	usleep(200000);
     72 	playSound('d', false, "low");
     73 	usleep(200000);
     74 	playSound('e', false, "low");
     75 	usleep(200000);
     76 	playSound('f', false, "low");
     77 	usleep(200000);
     78 	playSound('g', false, "low");
     79 	usleep(500000);
     80 	playSound('a', false, "low");
     81 	usleep(500000);
     82 	playSound('b', false, "low");
     83 	usleep(500000);
     84 }
     85 
     86 void GroveSpeaker::playSound(char letter, bool sharp, std::string vocalWeight)
     87 {
     88 	std::map<char, NoteData>::iterator it = m_note_list.find(letter);
     89 	if(it == m_note_list.end())
     90 	{
     91 		std::cout << "The key " << letter << " doesn't exist." << std::endl;
     92 		return;
     93 	}
     94 	NoteData nd = it->second;
     95 	int delayTime;
     96 	if (sharp)
     97 	{
     98 		if (vocalWeight.compare("low") == 0)
     99 			delayTime = nd.delayTimeLowSharp;
    100 		else if (vocalWeight.compare("med") == 0)
    101 			delayTime = nd.delayTimeMedSharp;
    102 		else if (vocalWeight.compare("high") == 0)
    103 			delayTime = nd.delayTimeHighSharp;
    104 		else
    105 		{
    106 			std::cout << "Correct voice weight values are low, med, or high"
    107 			          << std::endl;
    108 			return;
    109 		}
    110 	}
    111 	else
    112 	{
    113 		if (vocalWeight.compare("low") == 0)
    114 			delayTime = nd.delayTimeLow;
    115 		else if (vocalWeight.compare("med") == 0)
    116 			delayTime = nd.delayTimeMed;
    117 		else if (vocalWeight.compare("high") == 0)
    118 			delayTime = nd.delayTimeHigh;
    119 		else
    120 		{
    121 			std::cout << "Correct voice weight values are low, med, or high"
    122 			          << std::endl;
    123 			return;
    124 		}
    125 	}
    126 	// If delayTime is zero, that means you tried to choose a sharp note
    127 	// for a note that has no sharp
    128 	if (sharp && !delayTime)
    129 	{
    130 		std::cout << "The key " << letter << " doesn't have a sharp note."
    131 		          << std::endl;
    132 		return;
    133 	}
    134 	sound(delayTime);
    135 }
    136 
    137 void GroveSpeaker::sound(int note_delay)
    138 {
    139 	mraa_result_t error = MRAA_SUCCESS;
    140 	for (int i = 0; i < 100; i++)
    141  	{
    142 		error = mraa_gpio_write (m_gpio, HIGH);
    143 		usleep(note_delay);
    144 		error = mraa_gpio_write (m_gpio, LOW);
    145 		usleep(note_delay);
    146 	}
    147 	if (error != MRAA_SUCCESS)
    148 		mraa_result_print(error);
    149 }
    150 
    151