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<title>Sensor Watch: watch-library/shared/watch/watch_extint.h Source File</title>
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<div id="projectname">Sensor Watch<span id="projectnumber"> 0.0.1</span>
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<div id="projectbrief">A board replacement for the classic Casio F-91W wristwatch, powered by a Microchip SAM L22 microcontroller.</div>
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<li class="navelem"><a class="el" href="dir_f1a087a6659d970f5756e21fc1ac4961.html">watch-library</a></li><li class="navelem"><a class="el" href="dir_3351a3556ab4b770be21f3a77a6d7b80.html">shared</a></li><li class="navelem"><a class="el" href="dir_280ec1f3fe74f12cdd5c78898ed1ca3c.html">watch</a></li> </ul>
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<div class="headertitle"><div class="title">watch_extint.h</div></div>
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * MIT License</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> *</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * Copyright (c) 2020 Joey Castillo</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> *</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * of this software and associated documentation files (the "Software"), to deal</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * in the Software without restriction, including without limitation the rights</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * copies of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> *</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * The above copyright notice and this permission notice shall be included in all</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * copies or substantial portions of the Software.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> *</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment"> */</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#ifndef _WATCH_EXTINT_H_INCLUDED</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#define _WATCH_EXTINT_H_INCLUDED</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include "<a class="code" href="watch_8h.html">watch.h</a>"</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="preprocessor">#include "hal_ext_irq.h"</span></div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"><a class="line" href="group__buttons.html#ga0454ca577b6fcc7a7cb03039cb5150d8"> 44</a></span><span class="keyword">typedef</span> <span class="keyword">enum</span> <a class="code hl_enumeration" href="group__buttons.html#ga0454ca577b6fcc7a7cb03039cb5150d8">watch_interrupt_trigger</a> {</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> INTERRUPT_TRIGGER_NONE = 0,</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> INTERRUPT_TRIGGER_RISING,</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> INTERRUPT_TRIGGER_FALLING,</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> INTERRUPT_TRIGGER_BOTH,</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="group__buttons.html#gadee2b304ce34a8aec5aedabd75934c1b"> 49</a></span>} <a class="code hl_enumeration" href="group__buttons.html#ga0454ca577b6fcc7a7cb03039cb5150d8">watch_interrupt_trigger</a>;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"><a class="line" href="group__buttons.html#ga9bcddd56ef2065183697b471a5fff6d2"> 52</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__buttons.html#ga9bcddd56ef2065183697b471a5fff6d2">watch_enable_external_interrupts</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"><a class="line" href="group__buttons.html#ga14c8fd8d92e4535012fb939ca8f12084"> 55</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__buttons.html#ga14c8fd8d92e4535012fb939ca8f12084">watch_disable_external_interrupts</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"><a class="line" href="group__buttons.html#gae40d2f73d0412680d83c26b8a0e1d31c"> 77</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__buttons.html#gae40d2f73d0412680d83c26b8a0e1d31c">watch_register_interrupt_callback</a>(<span class="keyword">const</span> uint8_t pin, ext_irq_cb_t callback, <a class="code hl_enumeration" href="group__buttons.html#ga0454ca577b6fcc7a7cb03039cb5150d8">watch_interrupt_trigger</a> trigger);</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="agroup__buttons_html_ga0454ca577b6fcc7a7cb03039cb5150d8"><div class="ttname"><a href="group__buttons.html#ga0454ca577b6fcc7a7cb03039cb5150d8">watch_interrupt_trigger</a></div><div class="ttdeci">watch_interrupt_trigger</div><div class="ttdoc">An enum defining the types of interrupt trigger you wish to scan for.</div><div class="ttdef"><b>Definition:</b> watch_extint.h:44</div></div>
<div class="ttc" id="agroup__buttons_html_ga14c8fd8d92e4535012fb939ca8f12084"><div class="ttname"><a href="group__buttons.html#ga14c8fd8d92e4535012fb939ca8f12084">watch_disable_external_interrupts</a></div><div class="ttdeci">void watch_disable_external_interrupts(void)</div><div class="ttdoc">Disables the external interrupt controller.</div></div>
<div class="ttc" id="agroup__buttons_html_ga9bcddd56ef2065183697b471a5fff6d2"><div class="ttname"><a href="group__buttons.html#ga9bcddd56ef2065183697b471a5fff6d2">watch_enable_external_interrupts</a></div><div class="ttdeci">void watch_enable_external_interrupts(void)</div><div class="ttdoc">Enables the external interrupt controller.</div></div>
<div class="ttc" id="agroup__buttons_html_gae40d2f73d0412680d83c26b8a0e1d31c"><div class="ttname"><a href="group__buttons.html#gae40d2f73d0412680d83c26b8a0e1d31c">watch_register_interrupt_callback</a></div><div class="ttdeci">void watch_register_interrupt_callback(const uint8_t pin, ext_irq_cb_t callback, watch_interrupt_trigger trigger)</div><div class="ttdoc">Configures an external interrupt callback on one of the external interrupt pins.</div></div>
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