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124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/*
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* Author: Andrei Vasiliu <andrei.vasiliu@intel.com>
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
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* Copyright (c) 2015 Intel Corporation.
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*
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* Credits to Adafruit.
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* Based on Adafruit BMP085 library.
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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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#pragma once
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#include <string>
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#include <math.h>
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#include <mraa/pwm.hpp>
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#include <mraa/aio.hpp>
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#include <mraa/gpio.hpp>
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#include <pthread.h>
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#define HIGH 1
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#define LOW 0
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#define TRUE HIGH
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#define FALSE LOW
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/**
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* @brief Pulsensor Pulse Sensor library
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* @defgroup pulsensor libupm-pulsensor
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* @ingroup seeed analog medical
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*/
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/**
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* @library pulsensor
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* @sensor pulsensor
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* @comname Pulse Sensor
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* @type medical
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* @man seeed
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* @web http://www.adafruit.com/products/1093
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* @con analog
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*
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* @brief C++ API for the 3-Wire Pulse Sensor
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*
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* This is a library for a 3-wire pulse sensor sold by several manufacturers.
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* Usually, you can identify the sensor based on the round breakout and the
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* distinctive heart symbol.
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*
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* @image html pulsensor.jpg
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* @snippet pulsensor.cxx Interesting
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*/
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/*!
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* @struct clbk_data
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* @brief callback data
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*/
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struct clbk_data {
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int is_heart_beat; /**< heartbeat check */
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};
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#if defined(SWIGJAVA) || defined(JAVACALLBACK)
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#include "Callback.h"
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#else
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typedef void (* callback_handler) (clbk_data);
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#endif
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/*!
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* @class Pulsensor
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* @brief The context for the heartbeat pulse sensor
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*/
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class Pulsensor {
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public:
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#if defined(SWIGJAVA) || defined(JAVACALLBACK)
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Pulsensor(Callback *callback);
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#else
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Pulsensor(callback_handler handler);
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#endif
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void start_sampler();
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void stop_sampler();
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private:
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static void *do_sample(void *arg);
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pthread_t sample_thread; /**< Thread for the code sample */
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uint32_t sample_counter; /**< Counter for the code sample */
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uint32_t last_beat_time; /**< Last heartbeat time */
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int threshold; /**< Threshold */
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int ibi_rate[10]; /**< ibi rate */
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int ibi; /**< ibi */
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int trough; /**< Trough */
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int peak; /**< Peak */
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int bpm; /**< Bits per minute */
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int apmlitude; /**< Amplitude */
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uint8_t qs; /**< qs */
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uint8_t is_pulse; /**< Is pulse check */
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uint8_t first_beat; /**< First heartbeat */
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uint8_t second_beat; /**< Second heartbeat */
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uint8_t pin; /**< Pin */
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uint8_t ret; /**< Return value */
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mraa::Aio pin_ctx; /**< The pin context */
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#if defined(SWIGJAVA) || defined(JAVACALLBACK)
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Callback *obj_callback; /**< The callback object */
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#else
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callback_handler callback; /**< The callback function */
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#endif
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volatile uint16_t ctx_counter;
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};
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