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/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2014 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.
*/
#pragma once
#include <string>
#include <mraa/gpio.h>
namespace upm {
/**
* @brief A110X Hall Effect library
* @defgroup a110x libupm-a110x
* @ingroup seeed gpio electric robok
*/
/**
* @library a110x
* @sensor a110x
* @comname A110X Hall Effect Sensor
* @altname Grove Hall Sensor
* @altid A1101, A1102, A1103, A1004, A1106
* @type electric
* @man seeed
* @web http://www.allegromicro.com/en/Products/Magnetic-Digital-Position-Sensor-ICs/Hall-Effect-Unipolar-Switches/A1101-2-3-4-6.aspx
* @con gpio
* @kit robok
*
* @brief API for the A110X Hall Effect sensors
*
* UPM module for the A110X (A1101, A1102, A1103, A1104, and A1106)
* Hall Effect sensors. It outputs a digital signal indicating
* whether it is detecting a magnetic field with south polarity
* perpendicular to the sensor element.
*
* @image html a110x.jpg
* An example showing a simple test for the presence of a field
* @snippet a110x.cxx Interesting
* An example demonstrating the use of an interrupt handler to count pulses
* @snippet a110x-intr.cxx Interesting
*/
class A110X {
public:
/**
* A110x digital sensor constructor
*
* @param pin Digital pin to use
*/
A110X(int pin);
/**
* A110X destructor
*/
~A110X();
/**
* Determines whether a magnetic field of south polarity has been detected
*
* @return True if magnetic field detected
*/
bool magnetDetected();
/**
* Installs an interrupt service routine (ISR) to be called when
* the appropriate magnetic field is detected
*
* @param fptr Pointer to a function to be called on interrupt
* @param arg Pointer to an object to be supplied as an
* argument to the ISR.
*/
#if defined(SWIGJAVA) || defined(JAVACALLBACK)
void installISR(jobject runnable);
#else
void installISR(void (*isr)(void *), void *arg);
#endif
/**
* Uninstalls the previously installed ISR
*
*/
void uninstallISR();
private:
#if defined(SWIGJAVA) || defined(JAVACALLBACK)
void installISR(void (*isr)(void *), void *arg);
#endif
bool m_isrInstalled;
mraa_gpio_context m_gpio;
};
}
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