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<a href="_u_h_s2__gpio_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved.</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"></span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">This program is free software; you can redistribute it and/or modify</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">it under the terms of the GNU General Public License as published by</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">the Free Software Foundation; either version 2 of the License, or</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">(at your option) any later version.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">This program is distributed in the hope that it will be useful,</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">GNU General Public License for more details.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"></span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">You should have received a copy of the GNU General Public License</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">along with this program; if not, write to the Free Software</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">Contact information</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">-------------------</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"></span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">Circuits At Home, LTD</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">Web : http://www.circuitsathome.com</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">e-mail : support@circuitsathome.com</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">UHS2_GPIO implements "wiring" style GPIO access. Implemented by Brian Walton brian@riban.co.uk</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> */</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="_u_h_s2__gpio_8h.html">UHS2_gpio.h</a>"</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="class_u_h_s2___g_p_i_o.html#a17ed93e6b9a8e81df410ade377bf6413"> 32</a></span> <a class="code" href="class_u_h_s2___g_p_i_o.html#a17ed93e6b9a8e81df410ade377bf6413">UHS2_GPIO::UHS2_GPIO</a>(<a class="code" href="class_u_s_b.html">USB</a> *pUsb) : m_pUsb(pUsb)</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> {</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> }</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="class_u_h_s2___g_p_i_o.html#a8b8339cda815b0cf1e0692346fa60586"> 40</a></span> <span class="keywordtype">void</span> <a class="code" href="class_u_h_s2___g_p_i_o.html#a8b8339cda815b0cf1e0692346fa60586">UHS2_GPIO::digitalWrite</a>(uint8_t pin, uint8_t val) {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">if</span>(pin > 7)</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">return</span>;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  uint8_t nValue = m_pUsb-><a class="code" href="class_m_a_x3421e.html#aeef352a1518ea20bf7d1925c671c2c46">gpioRdOutput</a>();</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  uint8_t nMask = 1 << pin;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  nValue &= (~nMask);</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span>(val)</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  nValue |= (nMask);</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  m_pUsb-><a class="code" href="class_m_a_x3421e.html#afccded4a32cdc2a811f7437d3b489336">gpioWr</a>(nValue);</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> }</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="class_u_h_s2___g_p_i_o.html#ac6fe71d23421ff4d28c7f197411b4a9c"> 55</a></span> <span class="keywordtype">int</span> <a class="code" href="class_u_h_s2___g_p_i_o.html#ac6fe71d23421ff4d28c7f197411b4a9c">UHS2_GPIO::digitalRead</a>(uint8_t pin) {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span>(pin > 7)</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  uint8_t nMask = 1 << pin;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  uint8_t nValue = m_pUsb-><a class="code" href="class_m_a_x3421e.html#aac5d00653f8fb1cb61d9d7509acb8e00">gpioRd</a>();</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">return</span> ((nValue & nMask)?1:0);</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="class_u_h_s2___g_p_i_o.html#ad9613c4c7e4fcaedb147929b0543e0c6"> 68</a></span> <span class="keywordtype">int</span> <a class="code" href="class_u_h_s2___g_p_i_o.html#ad9613c4c7e4fcaedb147929b0543e0c6">UHS2_GPIO::digitalReadOutput</a>(uint8_t pin) {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">if</span>(pin > 7)</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> -1;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  uint8_t nMask = 1 << pin;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  uint8_t nValue = m_pUsb-><a class="code" href="class_m_a_x3421e.html#aeef352a1518ea20bf7d1925c671c2c46">gpioRdOutput</a>();</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> ((nValue & nMask)?1:0);</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> }</div><div class="ttc" id="class_u_h_s2___g_p_i_o_html_ad9613c4c7e4fcaedb147929b0543e0c6"><div class="ttname"><a href="class_u_h_s2___g_p_i_o.html#ad9613c4c7e4fcaedb147929b0543e0c6">UHS2_GPIO::digitalReadOutput</a></div><div class="ttdeci">int digitalReadOutput(uint8_t pin)</div><div class="ttdoc">Read the value from a GPIO output pin. </div><div class="ttdef"><b>Definition:</b> <a href="_u_h_s2__gpio_8cpp_source.html#l00068">UHS2_gpio.cpp:68</a></div></div>
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<div class="ttc" id="_u_h_s2__gpio_8h_html"><div class="ttname"><a href="_u_h_s2__gpio_8h.html">UHS2_gpio.h</a></div></div>
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<div class="ttc" id="class_u_h_s2___g_p_i_o_html_ac6fe71d23421ff4d28c7f197411b4a9c"><div class="ttname"><a href="class_u_h_s2___g_p_i_o.html#ac6fe71d23421ff4d28c7f197411b4a9c">UHS2_GPIO::digitalRead</a></div><div class="ttdeci">int digitalRead(uint8_t pin)</div><div class="ttdoc">Read the value from a GPIO input pin. </div><div class="ttdef"><b>Definition:</b> <a href="_u_h_s2__gpio_8cpp_source.html#l00055">UHS2_gpio.cpp:55</a></div></div>
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<div class="ttc" id="class_m_a_x3421e_html_aeef352a1518ea20bf7d1925c671c2c46"><div class="ttname"><a href="class_m_a_x3421e.html#aeef352a1518ea20bf7d1925c671c2c46">MAX3421e::gpioRdOutput</a></div><div class="ttdeci">uint8_t gpioRdOutput()</div><div class="ttdoc">Reads the current GPI output values. </div><div class="ttdef"><b>Definition:</b> <a href="usbhost_8h_source.html#l00397">usbhost.h:397</a></div></div>
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<div class="ttc" id="class_m_a_x3421e_html_afccded4a32cdc2a811f7437d3b489336"><div class="ttname"><a href="class_m_a_x3421e.html#afccded4a32cdc2a811f7437d3b489336">MAX3421e::gpioWr</a></div><div class="ttdeci">void gpioWr(uint8_t data)</div><div class="ttdef"><b>Definition:</b> <a href="usbhost_8h_source.html#l00269">usbhost.h:269</a></div></div>
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<div class="ttc" id="class_m_a_x3421e_html_aac5d00653f8fb1cb61d9d7509acb8e00"><div class="ttname"><a href="class_m_a_x3421e.html#aac5d00653f8fb1cb61d9d7509acb8e00">MAX3421e::gpioRd</a></div><div class="ttdeci">uint8_t gpioRd()</div><div class="ttdoc">Reads the current GPI input values. </div><div class="ttdef"><b>Definition:</b> <a href="usbhost_8h_source.html#l00384">usbhost.h:384</a></div></div>
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<div class="ttc" id="class_u_h_s2___g_p_i_o_html_a8b8339cda815b0cf1e0692346fa60586"><div class="ttname"><a href="class_u_h_s2___g_p_i_o.html#a8b8339cda815b0cf1e0692346fa60586">UHS2_GPIO::digitalWrite</a></div><div class="ttdeci">void digitalWrite(uint8_t pin, uint8_t val)</div><div class="ttdoc">Set a GPIO output value. </div><div class="ttdef"><b>Definition:</b> <a href="_u_h_s2__gpio_8cpp_source.html#l00040">UHS2_gpio.cpp:40</a></div></div>
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<div class="ttc" id="class_u_h_s2___g_p_i_o_html_a17ed93e6b9a8e81df410ade377bf6413"><div class="ttname"><a href="class_u_h_s2___g_p_i_o.html#a17ed93e6b9a8e81df410ade377bf6413">UHS2_GPIO::UHS2_GPIO</a></div><div class="ttdeci">UHS2_GPIO(USB *pUsb)</div><div class="ttdoc">Implement an instance of a UHS2_GPIO object. </div><div class="ttdef"><b>Definition:</b> <a href="_u_h_s2__gpio_8cpp_source.html#l00032">UHS2_gpio.cpp:32</a></div></div>
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<div class="ttc" id="class_u_s_b_html"><div class="ttname"><a href="class_u_s_b.html">USB</a></div><div class="ttdef"><b>Definition:</b> <a href="_usb_core_8h_source.html#l00210">UsbCore.h:210</a></div></div>
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