upm/src/isd1820/isd1820.cxx
Jon Trulson 47eaf93e4d isd1820: Initial implementation
This driver implements support for the Grove Recorder.  It records up
to about 10 seconds of audio, and can play it back on command.

Signed-off-by: Jon Trulson <jtrulson@ics.com>
Signed-off-by: Zion Orent <zorent@ics.com>
Signed-off-by: John Van Drasek <john.r.van.drasek@intel.com>
2015-04-14 16:36:18 -07:00

88 lines
2.2 KiB
C++

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <iostream>
#include "isd1820.h"
using namespace upm;
using namespace std;
ISD1820::ISD1820(int playPin, int recPin)
{
if ( !(m_gpioPlay = mraa_gpio_init(playPin)) )
{
cerr << __FUNCTION__ << ": mraa_gpio_init() failed" << endl;
return;
}
mraa_gpio_dir(m_gpioPlay, MRAA_GPIO_OUT);
if ( !(m_gpioRec = mraa_gpio_init(recPin)) )
{
cerr << __FUNCTION__ << ": mraa_gpio_init() failed" << endl;
return;
}
mraa_gpio_dir(m_gpioRec, MRAA_GPIO_OUT);
// make sure we are not recording or playing
play(false);
record(false);
}
ISD1820::~ISD1820()
{
mraa_gpio_close(m_gpioPlay);
mraa_gpio_close(m_gpioRec);
}
void ISD1820::play(bool enable)
{
if (enable)
{
// make sure we are not recording
record(false);
mraa_gpio_write(m_gpioPlay, 1);
}
else
{
mraa_gpio_write(m_gpioPlay, 0);
}
}
void ISD1820::record(bool enable)
{
if (enable)
{
// make sure we are not playing
play(false);
mraa_gpio_write(m_gpioRec, 1);
}
else
{
mraa_gpio_write(m_gpioRec, 0);
}
}