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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#ifndef PI_HAL_LGPIO_H</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#define PI_HAL_LGPIO_H</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// include RadioLib</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;RadioLib.h&gt;</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">// include the library for Raspberry GPIO pins</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &lt;lgpio.h&gt;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#define PI_RISING (LG_RISING_EDGE)</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#define PI_FALLING (LG_FALLING_EDGE)</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#define PI_INPUT (0)</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#define PI_OUTPUT (1)</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#define PI_MAX_USER_GPIO (31)</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment">// forward declaration of alert handler that will be used to emulate interrupts</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="keyword">static</span> <span class="keywordtype">void</span> lgpioAlertHandler(<span class="keywordtype">int</span> num_alerts, lgGpioAlert_p alerts, <span class="keywordtype">void</span> *userdata);</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment">// create a new Raspberry Pi hardware abstraction layer</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment">// using the lgpio library</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="comment">// the HAL must inherit from the base RadioLibHal class</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="comment">// and implement all of its virtual methods</span></div>
<div class="foldopen" id="foldopen00023" data-start="{" data-end="};">
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"><a class="line" href="class_pi_hal.html"> 23</a></span><span class="keyword">class </span><a class="code hl_class" href="class_pi_hal.html">PiHal</a> : <span class="keyword">public</span> <a class="code hl_class" href="class_radio_lib_hal.html">RadioLibHal</a> {</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// default constructor - initializes the base HAL and any needed private members</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <a class="code hl_class" href="class_pi_hal.html">PiHal</a>(uint8_t spiChannel, uint32_t spiSpeed = 2000000, uint8_t spiDevice = 0, uint8_t gpioDevice = 0)</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> : <a class="code hl_class" href="class_radio_lib_hal.html">RadioLibHal</a>(PI_INPUT, PI_OUTPUT, LG_LOW, LG_HIGH, PI_RISING, PI_FALLING),</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> _gpioDevice(gpioDevice),</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> _spiDevice(spiDevice),</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> _spiChannel(spiChannel),</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> _spiSpeed(spiSpeed) {</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> }</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="foldopen" id="foldopen00034" data-start="{" data-end="}">
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a78593321f098c53fbac81b8d0d423b7f"> 34</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a78593321f098c53fbac81b8d0d423b7f">init</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordflow">if</span>(_gpioHandle != -1) {</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> }</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// first initialise lgpio library</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keywordflow">if</span>((_gpioHandle = lgGpiochipOpen(_gpioDevice)) &lt; 0) {</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> fprintf(stderr, <span class="stringliteral">&quot;Could not open GPIO chip: %s\n&quot;</span>, lguErrorText(_gpioHandle));</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> }</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <span class="comment">// now the SPI</span></div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_function" href="class_pi_hal.html#a40d237c2f5f4ead26c39f33481b4d7e3">spiBegin</a>();</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> }</div>
</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
<div class="foldopen" id="foldopen00049" data-start="{" data-end="}">
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="class_pi_hal.html#ae5821694030ae6364012be3a34ef584d"> 49</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#ae5821694030ae6364012be3a34ef584d">term</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="comment">// stop the SPI</span></div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <a class="code hl_function" href="class_pi_hal.html#a6b0d64ed834b91f67b3344ce8c573d7b">spiEnd</a>();</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="comment">// finally, stop the lgpio library</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> lgGpiochipClose(_gpioHandle);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> _gpioHandle = -1;</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> }</div>
</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// GPIO-related methods (pinMode, digitalWrite etc.) should check</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="comment">// RADIOLIB_NC as an alias for non-connected pins</span></div>
<div class="foldopen" id="foldopen00060" data-start="{" data-end="}">
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"><a class="line" href="class_pi_hal.html#ad2986ed862d4c429d6527bd54e472530"> 60</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#ad2986ed862d4c429d6527bd54e472530">pinMode</a>(uint32_t pin, uint32_t mode)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <span class="keywordflow">if</span>(pin == RADIOLIB_NC) {</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordtype">int</span> result;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordtype">int</span> flags = 0;</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">switch</span>(mode) {</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordflow">case</span> PI_INPUT:</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> result = lgGpioClaimInput(_gpioHandle, 0, pin);</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">case</span> PI_OUTPUT:</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> result = lgGpioClaimOutput(_gpioHandle, flags, pin, LG_HIGH);</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> fprintf(stderr, <span class="stringliteral">&quot;Unknown pinMode mode %&quot;</span> PRIu32 <span class="stringliteral">&quot;\n&quot;</span>, mode);</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">if</span>(result &lt; 0) {</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> fprintf(stderr, <span class="stringliteral">&quot;Could not claim pin %&quot;</span> PRIu32 <span class="stringliteral">&quot; for mode %&quot;</span> PRIu32 <span class="stringliteral">&quot;: %s\n&quot;</span>,</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> pin, mode, lguErrorText(result));</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> }</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> }</div>
</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="foldopen" id="foldopen00085" data-start="{" data-end="}">
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a203ed127ad16bbeeba0a3cd536eebce6"> 85</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a203ed127ad16bbeeba0a3cd536eebce6">digitalWrite</a>(uint32_t pin, uint32_t value)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordflow">if</span>(pin == RADIOLIB_NC) {</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> }</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordtype">int</span> result = lgGpioWrite(_gpioHandle, pin, value);</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">if</span>(result &lt; 0) {</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> fprintf(stderr, <span class="stringliteral">&quot;Error writing value to pin %&quot;</span> PRIu32 <span class="stringliteral">&quot;: %s\n&quot;</span>, pin, lguErrorText(result));</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> }</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> }</div>
</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="foldopen" id="foldopen00096" data-start="{" data-end="}">
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"><a class="line" href="class_pi_hal.html#ab9a8fc4f0c7c5190db9d8770bc7d635e"> 96</a></span> uint32_t <a class="code hl_function" href="class_pi_hal.html#ab9a8fc4f0c7c5190db9d8770bc7d635e">digitalRead</a>(uint32_t pin)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">if</span>(pin == RADIOLIB_NC) {</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">return</span>(0);</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> }</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keywordtype">int</span> result = lgGpioRead(_gpioHandle, pin);</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">if</span>(result &lt; 0) {</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> fprintf(stderr, <span class="stringliteral">&quot;Error writing reading from pin %&quot;</span> PRIu32 <span class="stringliteral">&quot;: %s\n&quot;</span>, pin, lguErrorText(result));</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> }</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">return</span> result;</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> }</div>
</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="foldopen" id="foldopen00108" data-start="{" data-end="}">
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"><a class="line" href="class_pi_hal.html#abcd33b2d926e14d98ead593e3cded31f"> 108</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#abcd33b2d926e14d98ead593e3cded31f">attachInterrupt</a>(uint32_t interruptNum, <span class="keywordtype">void</span> (*interruptCb)(<span class="keywordtype">void</span>), uint32_t mode)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keywordflow">if</span>((interruptNum == RADIOLIB_NC) || (interruptNum &gt; PI_MAX_USER_GPIO)) {</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="comment">// set lgpio alert callback</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordtype">int</span> result = lgGpioClaimAlert(_gpioHandle, 0, mode, interruptNum, -1);</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">if</span>(result &lt; 0) {</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> fprintf(stderr, <span class="stringliteral">&quot;Could not claim pin %&quot;</span> PRIu32 <span class="stringliteral">&quot; for alert: %s\n&quot;</span>, interruptNum, lguErrorText(result));</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> }</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="comment">// enable emulated interrupt</span></div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> interruptEnabled[interruptNum] = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> interruptModes[interruptNum] = mode;</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> interruptCallbacks[interruptNum] = interruptCb;</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> lgGpioSetAlertsFunc(_gpioHandle, interruptNum, lgpioAlertHandler, (<span class="keywordtype">void</span> *)<span class="keyword">this</span>);</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> }</div>
</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="foldopen" id="foldopen00128" data-start="{" data-end="}">
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"><a class="line" href="class_pi_hal.html#afb13f79080b95925ea61576696abaa63"> 128</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#afb13f79080b95925ea61576696abaa63">detachInterrupt</a>(uint32_t interruptNum)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keywordflow">if</span>((interruptNum == RADIOLIB_NC) || (interruptNum &gt; PI_MAX_USER_GPIO)) {</div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> }</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> </div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="comment">// clear emulated interrupt</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> interruptEnabled[interruptNum] = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> interruptModes[interruptNum] = 0;</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> interruptCallbacks[interruptNum] = NULL;</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> </div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="comment">// disable lgpio alert callback</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> lgGpioFree(_gpioHandle, interruptNum);</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> lgGpioSetAlertsFunc(_gpioHandle, interruptNum, NULL, NULL);</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="foldopen" id="foldopen00143" data-start="{" data-end="}">
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"><a class="line" href="class_pi_hal.html#adf1482ac38f67d58e4d41e3e74323e5a"> 143</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#adf1482ac38f67d58e4d41e3e74323e5a">delay</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> ms)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">if</span>(ms == 0) {</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> sched_yield();</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> }</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> lguSleep(ms / 1000.0);</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> }</div>
</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="foldopen" id="foldopen00152" data-start="{" data-end="}">
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"><a class="line" href="class_pi_hal.html#ab9ade61749459b508291d81e205ddacf"> 152</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#ab9ade61749459b508291d81e205ddacf">delayMicroseconds</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> us)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordflow">if</span>(us == 0) {</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> sched_yield();</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> }</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> </div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> lguSleep(us / 1000000.0);</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> }</div>
</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> </div>
<div class="foldopen" id="foldopen00161" data-start="{" data-end="}">
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"><a class="line" href="class_pi_hal.html#af0aca7bc69d8b31783656213e8a8873d"> 161</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#af0aca7bc69d8b31783656213e8a8873d">yield</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> sched_yield();</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> }</div>
</div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> </div>
<div class="foldopen" id="foldopen00165" data-start="{" data-end="}">
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a162b953dbc7bb96be6d7ec037c4d465e"> 165</a></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code hl_function" href="class_pi_hal.html#a162b953dbc7bb96be6d7ec037c4d465e">millis</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> uint32_t time = lguTimestamp() / 1000000UL;</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="keywordflow">return</span> time;</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> }</div>
</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="foldopen" id="foldopen00170" data-start="{" data-end="}">
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a99893a968bd5789511154b559f349e60"> 170</a></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code hl_function" href="class_pi_hal.html#a99893a968bd5789511154b559f349e60">micros</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> uint32_t time = lguTimestamp() / 1000UL;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">return</span> time;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> }</div>
</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
<div class="foldopen" id="foldopen00175" data-start="{" data-end="}">
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a3350f8cc20008dbe69e7180599fb80ee"> 175</a></span> <span class="keywordtype">long</span> <a class="code hl_function" href="class_pi_hal.html#a3350f8cc20008dbe69e7180599fb80ee">pulseIn</a>(uint32_t pin, uint32_t state, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> timeout)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">if</span>(pin == RADIOLIB_NC) {</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">return</span>(0);</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> }</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> this-&gt;<a class="code hl_function" href="class_pi_hal.html#ad2986ed862d4c429d6527bd54e472530">pinMode</a>(pin, PI_INPUT);</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> uint32_t start = this-&gt;<a class="code hl_function" href="class_pi_hal.html#a99893a968bd5789511154b559f349e60">micros</a>();</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> uint32_t curtick = this-&gt;<a class="code hl_function" href="class_pi_hal.html#a99893a968bd5789511154b559f349e60">micros</a>();</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> </div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">while</span>(this-&gt;<a class="code hl_function" href="class_pi_hal.html#ab9a8fc4f0c7c5190db9d8770bc7d635e">digitalRead</a>(pin) == state) {</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">if</span>((this-&gt;<a class="code hl_function" href="class_pi_hal.html#a99893a968bd5789511154b559f349e60">micros</a>() - curtick) &gt; timeout) {</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">return</span>(0);</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> }</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> }</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">return</span>(this-&gt;<a class="code hl_function" href="class_pi_hal.html#a99893a968bd5789511154b559f349e60">micros</a>() - start);</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> }</div>
</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> </div>
<div class="foldopen" id="foldopen00193" data-start="{" data-end="}">
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a40d237c2f5f4ead26c39f33481b4d7e3"> 193</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a40d237c2f5f4ead26c39f33481b4d7e3">spiBegin</a>() {</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">if</span>(_spiHandle &lt; 0) {</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keywordflow">if</span>((_spiHandle = lgSpiOpen(_spiDevice, _spiChannel, _spiSpeed, 0)) &lt; 0) {</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> fprintf(stderr, <span class="stringliteral">&quot;Could not open SPI handle on 0: %s\n&quot;</span>, lguErrorText(_spiHandle));</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> }</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> }</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> }</div>
</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"><a class="line" href="class_pi_hal.html#ab8c97e2b1c42368793d48d08b815fd69"> 201</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#ab8c97e2b1c42368793d48d08b815fd69">spiBeginTransaction</a>() {}</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
<div class="foldopen" id="foldopen00203" data-start="{" data-end="}">
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a96a0f36efd8e23893add3242bdef8be4"> 203</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a96a0f36efd8e23893add3242bdef8be4">spiTransfer</a>(uint8_t* out, <span class="keywordtype">size_t</span> len, uint8_t* in) {</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordtype">int</span> result = lgSpiXfer(_spiHandle, (<span class="keywordtype">char</span> *)out, (<span class="keywordtype">char</span>*)in, len);</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">if</span>(result &lt; 0) {</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> fprintf(stderr, <span class="stringliteral">&quot;Could not perform SPI transfer: %s\n&quot;</span>, lguErrorText(result));</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> }</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> }</div>
</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> </div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a7debfa73095e727950831af2e8aab5f7"> 210</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a7debfa73095e727950831af2e8aab5f7">spiEndTransaction</a>() {}</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> </div>
<div class="foldopen" id="foldopen00212" data-start="{" data-end="}">
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a6b0d64ed834b91f67b3344ce8c573d7b"> 212</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a6b0d64ed834b91f67b3344ce8c573d7b">spiEnd</a>() {</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="keywordflow">if</span>(_spiHandle &gt;= 0) {</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> lgSpiClose(_spiHandle);</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> _spiHandle = -1;</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> }</div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> }</div>
</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> </div>
<div class="foldopen" id="foldopen00219" data-start="{" data-end="}">
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a95856f347434694b018d0ad18126e041"> 219</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a95856f347434694b018d0ad18126e041">tone</a>(uint32_t pin, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> frequency, <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> duration = 0) {</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> lgTxPwm(_gpioHandle, pin, frequency, 50, 0, duration);</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> }</div>
</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> </div>
<div class="foldopen" id="foldopen00223" data-start="{" data-end="}">
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"><a class="line" href="class_pi_hal.html#a06ee4519e6226013798e03f303fe3941"> 223</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="class_pi_hal.html#a06ee4519e6226013798e03f303fe3941">noTone</a>(uint32_t pin) {</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> lgTxPwm(_gpioHandle, pin, 0, 0, 0, 0);</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> }</div>
</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="comment">// interrupt emulation</span></div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordtype">bool</span> interruptEnabled[PI_MAX_USER_GPIO + 1];</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> uint32_t interruptModes[PI_MAX_USER_GPIO + 1];</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keyword">typedef</span> void (*RadioLibISR)(void);</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> RadioLibISR interruptCallbacks[PI_MAX_USER_GPIO + 1];</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// the HAL can contain any additional private members</span></div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> _spiSpeed;</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keyword">const</span> uint8_t _gpioDevice;</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keyword">const</span> uint8_t _spiDevice;</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keyword">const</span> uint8_t _spiChannel;</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordtype">int</span> _gpioHandle = -1;</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordtype">int</span> _spiHandle = -1;</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span>};</div>
</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span><span class="comment">// this handler emulates interrupts</span></div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span><span class="keyword">static</span> <span class="keywordtype">void</span> lgpioAlertHandler(<span class="keywordtype">int</span> num_alerts, lgGpioAlert_p alerts, <span class="keywordtype">void</span> *userdata) {</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">if</span>(!userdata)</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> </div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// PiHal instance is passed via the user data</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <a class="code hl_class" href="class_pi_hal.html">PiHal</a>* hal = (<a class="code hl_class" href="class_pi_hal.html">PiHal</a>*)userdata;</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> </div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// check the interrupt is enabled, the level matches and a callback exists</span></div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="keywordflow">for</span>(lgGpioAlert_t *alert = alerts; alert &lt; (alerts + num_alerts); alert++) {</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> <span class="keywordflow">if</span>((hal-&gt;interruptEnabled[alert-&gt;report.gpio]) &amp;&amp;</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> (hal-&gt;interruptModes[alert-&gt;report.gpio] == alert-&gt;report.level) &amp;&amp;</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> (hal-&gt;interruptCallbacks[alert-&gt;report.gpio])) {</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> hal-&gt;interruptCallbacks[alert-&gt;report.gpio]();</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> }</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> }</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span>}</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> </div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span><span class="preprocessor">#endif</span></div>
<div class="ttc" id="aclass_pi_hal_html"><div class="ttname"><a href="class_pi_hal.html">PiHal</a></div><div class="ttdef"><b>Definition</b> PiHal.h:23</div></div>
<div class="ttc" id="aclass_pi_hal_html_a06ee4519e6226013798e03f303fe3941"><div class="ttname"><a href="class_pi_hal.html#a06ee4519e6226013798e03f303fe3941">PiHal::noTone</a></div><div class="ttdeci">void noTone(uint32_t pin)</div><div class="ttdoc">Method to stop producing a tone.</div><div class="ttdef"><b>Definition</b> PiHal.h:223</div></div>
<div class="ttc" id="aclass_pi_hal_html_a162b953dbc7bb96be6d7ec037c4d465e"><div class="ttname"><a href="class_pi_hal.html#a162b953dbc7bb96be6d7ec037c4d465e">PiHal::millis</a></div><div class="ttdeci">unsigned long millis() override</div><div class="ttdoc">Get number of milliseconds since start. Must be implemented by the platform-specific hardware abstrac...</div><div class="ttdef"><b>Definition</b> PiHal.h:165</div></div>
<div class="ttc" id="aclass_pi_hal_html_a203ed127ad16bbeeba0a3cd536eebce6"><div class="ttname"><a href="class_pi_hal.html#a203ed127ad16bbeeba0a3cd536eebce6">PiHal::digitalWrite</a></div><div class="ttdeci">void digitalWrite(uint32_t pin, uint32_t value) override</div><div class="ttdoc">Digital write method. Must be implemented by the platform-specific hardware abstraction!</div><div class="ttdef"><b>Definition</b> PiHal.h:85</div></div>
<div class="ttc" id="aclass_pi_hal_html_a3350f8cc20008dbe69e7180599fb80ee"><div class="ttname"><a href="class_pi_hal.html#a3350f8cc20008dbe69e7180599fb80ee">PiHal::pulseIn</a></div><div class="ttdeci">long pulseIn(uint32_t pin, uint32_t state, unsigned long timeout) override</div><div class="ttdoc">Measure the length of incoming digital pulse in microseconds. Must be implemented by the platform-spe...</div><div class="ttdef"><b>Definition</b> PiHal.h:175</div></div>
<div class="ttc" id="aclass_pi_hal_html_a40d237c2f5f4ead26c39f33481b4d7e3"><div class="ttname"><a href="class_pi_hal.html#a40d237c2f5f4ead26c39f33481b4d7e3">PiHal::spiBegin</a></div><div class="ttdeci">void spiBegin()</div><div class="ttdoc">SPI initialization method.</div><div class="ttdef"><b>Definition</b> PiHal.h:193</div></div>
<div class="ttc" id="aclass_pi_hal_html_a6b0d64ed834b91f67b3344ce8c573d7b"><div class="ttname"><a href="class_pi_hal.html#a6b0d64ed834b91f67b3344ce8c573d7b">PiHal::spiEnd</a></div><div class="ttdeci">void spiEnd()</div><div class="ttdoc">SPI termination method.</div><div class="ttdef"><b>Definition</b> PiHal.h:212</div></div>
<div class="ttc" id="aclass_pi_hal_html_a78593321f098c53fbac81b8d0d423b7f"><div class="ttname"><a href="class_pi_hal.html#a78593321f098c53fbac81b8d0d423b7f">PiHal::init</a></div><div class="ttdeci">void init() override</div><div class="ttdoc">Module initialization method. This will be called by all radio modules at the beginning of startup....</div><div class="ttdef"><b>Definition</b> PiHal.h:34</div></div>
<div class="ttc" id="aclass_pi_hal_html_a7debfa73095e727950831af2e8aab5f7"><div class="ttname"><a href="class_pi_hal.html#a7debfa73095e727950831af2e8aab5f7">PiHal::spiEndTransaction</a></div><div class="ttdeci">void spiEndTransaction()</div><div class="ttdoc">Method to end SPI transaction.</div><div class="ttdef"><b>Definition</b> PiHal.h:210</div></div>
<div class="ttc" id="aclass_pi_hal_html_a95856f347434694b018d0ad18126e041"><div class="ttname"><a href="class_pi_hal.html#a95856f347434694b018d0ad18126e041">PiHal::tone</a></div><div class="ttdeci">void tone(uint32_t pin, unsigned int frequency, unsigned long duration=0)</div><div class="ttdoc">Method to produce a square-wave with 50% duty cycle (&quot;tone&quot;) of a given frequency at some pin.</div><div class="ttdef"><b>Definition</b> PiHal.h:219</div></div>
<div class="ttc" id="aclass_pi_hal_html_a96a0f36efd8e23893add3242bdef8be4"><div class="ttname"><a href="class_pi_hal.html#a96a0f36efd8e23893add3242bdef8be4">PiHal::spiTransfer</a></div><div class="ttdeci">void spiTransfer(uint8_t *out, size_t len, uint8_t *in)</div><div class="ttdoc">Method to transfer buffer over SPI.</div><div class="ttdef"><b>Definition</b> PiHal.h:203</div></div>
<div class="ttc" id="aclass_pi_hal_html_a99893a968bd5789511154b559f349e60"><div class="ttname"><a href="class_pi_hal.html#a99893a968bd5789511154b559f349e60">PiHal::micros</a></div><div class="ttdeci">unsigned long micros() override</div><div class="ttdoc">Get number of microseconds since start. Must be implemented by the platform-specific hardware abstrac...</div><div class="ttdef"><b>Definition</b> PiHal.h:170</div></div>
<div class="ttc" id="aclass_pi_hal_html_ab8c97e2b1c42368793d48d08b815fd69"><div class="ttname"><a href="class_pi_hal.html#ab8c97e2b1c42368793d48d08b815fd69">PiHal::spiBeginTransaction</a></div><div class="ttdeci">void spiBeginTransaction()</div><div class="ttdoc">Method to start SPI transaction.</div><div class="ttdef"><b>Definition</b> PiHal.h:201</div></div>
<div class="ttc" id="aclass_pi_hal_html_ab9a8fc4f0c7c5190db9d8770bc7d635e"><div class="ttname"><a href="class_pi_hal.html#ab9a8fc4f0c7c5190db9d8770bc7d635e">PiHal::digitalRead</a></div><div class="ttdeci">uint32_t digitalRead(uint32_t pin) override</div><div class="ttdoc">Digital read method. Must be implemented by the platform-specific hardware abstraction!</div><div class="ttdef"><b>Definition</b> PiHal.h:96</div></div>
<div class="ttc" id="aclass_pi_hal_html_ab9ade61749459b508291d81e205ddacf"><div class="ttname"><a href="class_pi_hal.html#ab9ade61749459b508291d81e205ddacf">PiHal::delayMicroseconds</a></div><div class="ttdeci">void delayMicroseconds(unsigned long us) override</div><div class="ttdoc">Blocking microsecond wait function. Must be implemented by the platform-specific hardware abstraction...</div><div class="ttdef"><b>Definition</b> PiHal.h:152</div></div>
<div class="ttc" id="aclass_pi_hal_html_abcd33b2d926e14d98ead593e3cded31f"><div class="ttname"><a href="class_pi_hal.html#abcd33b2d926e14d98ead593e3cded31f">PiHal::attachInterrupt</a></div><div class="ttdeci">void attachInterrupt(uint32_t interruptNum, void(*interruptCb)(void), uint32_t mode) override</div><div class="ttdoc">Method to attach function to an external interrupt. Must be implemented by the platform-specific hard...</div><div class="ttdef"><b>Definition</b> PiHal.h:108</div></div>
<div class="ttc" id="aclass_pi_hal_html_ad2986ed862d4c429d6527bd54e472530"><div class="ttname"><a href="class_pi_hal.html#ad2986ed862d4c429d6527bd54e472530">PiHal::pinMode</a></div><div class="ttdeci">void pinMode(uint32_t pin, uint32_t mode) override</div><div class="ttdoc">GPIO pin mode (input/output/...) configuration method. Must be implemented by the platform-specific h...</div><div class="ttdef"><b>Definition</b> PiHal.h:60</div></div>
<div class="ttc" id="aclass_pi_hal_html_adf1482ac38f67d58e4d41e3e74323e5a"><div class="ttname"><a href="class_pi_hal.html#adf1482ac38f67d58e4d41e3e74323e5a">PiHal::delay</a></div><div class="ttdeci">void delay(unsigned long ms) override</div><div class="ttdoc">Blocking wait function. Must be implemented by the platform-specific hardware abstraction!</div><div class="ttdef"><b>Definition</b> PiHal.h:143</div></div>
<div class="ttc" id="aclass_pi_hal_html_ae5821694030ae6364012be3a34ef584d"><div class="ttname"><a href="class_pi_hal.html#ae5821694030ae6364012be3a34ef584d">PiHal::term</a></div><div class="ttdeci">void term() override</div><div class="ttdoc">Module termination method. This will be called by all radio modules when the destructor is called....</div><div class="ttdef"><b>Definition</b> PiHal.h:49</div></div>
<div class="ttc" id="aclass_pi_hal_html_af0aca7bc69d8b31783656213e8a8873d"><div class="ttname"><a href="class_pi_hal.html#af0aca7bc69d8b31783656213e8a8873d">PiHal::yield</a></div><div class="ttdeci">void yield() override</div><div class="ttdoc">Yield method, called from long loops in multi-threaded environment (to prevent blocking other threads...</div><div class="ttdef"><b>Definition</b> PiHal.h:161</div></div>
<div class="ttc" id="aclass_pi_hal_html_afb13f79080b95925ea61576696abaa63"><div class="ttname"><a href="class_pi_hal.html#afb13f79080b95925ea61576696abaa63">PiHal::detachInterrupt</a></div><div class="ttdeci">void detachInterrupt(uint32_t interruptNum) override</div><div class="ttdoc">Method to detach function from an external interrupt. Must be implemented by the platform-specific ha...</div><div class="ttdef"><b>Definition</b> PiHal.h:128</div></div>
<div class="ttc" id="aclass_radio_lib_hal_html"><div class="ttname"><a href="class_radio_lib_hal.html">RadioLibHal</a></div><div class="ttdoc">Hardware abstraction library base interface.</div><div class="ttdef"><b>Definition</b> Hal.h:16</div></div>
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