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This was tested with the Grove FM Receiver. Unfortunately, there is no documentation on how to control the device using the D1 and D2 pins that Seeed provides. There is a switch on the device that can control all of the elements, power, volume, and seek +/-. The supplied example can turn the device on, and do a seek, but not much else. Signed-off-by: Jon Trulson <jtrulson@ics.com> Signed-off-by: Zion Orent <zorent@ics.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <unistd.h>
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#include <iostream>
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#include "sx6119.h"
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using namespace upm;
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using namespace std;
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SX6119::SX6119(int powerPin, int seekPin)
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{
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if ( !(m_gpioPower = mraa_gpio_init(powerPin)) )
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{
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cerr << __FUNCTION__ << ": mraa_gpio_init() failed" << endl;
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return;
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}
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mraa_gpio_dir(m_gpioPower, MRAA_GPIO_OUT);
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mraa_gpio_write(m_gpioPower, 1);
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if ( !(m_gpioSeek = mraa_gpio_init(seekPin)) )
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{
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cerr << __FUNCTION__ << ": mraa_gpio_init() failed" << endl;
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return;
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}
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mraa_gpio_dir(m_gpioSeek, MRAA_GPIO_OUT);
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mraa_gpio_write(m_gpioSeek, 1);
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}
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SX6119::~SX6119()
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{
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mraa_gpio_close(m_gpioPower);
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mraa_gpio_close(m_gpioSeek);
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}
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void SX6119::togglePower()
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{
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// this is just a toggle -- we set LOW for one second and power will
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// be turned on or off depending on the previous condition.
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mraa_gpio_write(m_gpioPower, 0);
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sleep(1);
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mraa_gpio_write(m_gpioPower, 1);
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}
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void SX6119::seek()
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{
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// this is just a trigger -- we set LOW for 500ms to seek to the
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// next available station, wrapping around when we reach the end.
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mraa_gpio_write(m_gpioSeek, 0);
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usleep(500000);
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mraa_gpio_write(m_gpioSeek, 1);
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}
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