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<div class="title">address.h</div>  </div>
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<a href="address_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<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>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">This software may be distributed and modified under the terms of the GNU</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">General Public License version 2 (GPL2) as published by the Free Software</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">Foundation and appearing in the file GPL2.TXT included in the packaging of</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">this file. Please note that GPL2 Section 2[b] requires that all works based</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">on this software must also be made publicly available under the terms of</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">the GPL2 (&quot;Copyleft&quot;).</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">Contact information</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">-------------------</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"></span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">Circuits At Home, LTD</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">Web      :  http://www.circuitsathome.com</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">e-mail   :  support@circuitsathome.com</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#if !defined(__ADDRESS_H__)</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define __ADDRESS_H__</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &lt;inttypes.h&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;stddef.h&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="max3421e_8h.html">max3421e.h</a>&quot;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">/* NAK powers. To save space in endpoint data structure, amount of retries before giving up and returning 0x4 is stored in */</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">/* bmNakPower as a power of 2. The actual nak_limit is then calculated as nak_limit = ( 2^bmNakPower - 1) */</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"><a class="code" href="address_8h.html#a517dfa014946e2d087d197312234a1de">   27</a></span>&#160;<span class="preprocessor">#define USB_NAK_MAX_POWER       15      //NAK binary order maximum value</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="code" href="address_8h.html#a622e49a2b6b99500654d24321983930e">   28</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define USB_NAK_DEFAULT         14      //default 32K-1 NAKs before giving up</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"><a class="code" href="address_8h.html#a660e8da9c1167a8450aef91c5c03761d">   29</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define USB_NAK_NOWAIT          1       //Single NAK stops transfer</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"><a class="code" href="address_8h.html#a39819e4b89e4bc769e2798f2ca6e3d7b">   30</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define USB_NAK_NONAK           0       //Do not count NAKs, stop retrying after USB Timeout</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"><a class="code" href="struct_ep_info.html">   32</a></span>&#160;<span class="keyword">struct </span><a class="code" href="struct_ep_info.html">EpInfo</a> {</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="code" href="struct_ep_info.html#a9f92be74c75c037b39e2cae1eb49b89b">   33</a></span>&#160;        uint8_t <a class="code" href="struct_ep_info.html#a9f92be74c75c037b39e2cae1eb49b89b">epAddr</a>; <span class="comment">// Endpoint address</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="struct_ep_info.html#aa2ca775b63736df4008e88da7dd4dddb">   34</a></span>&#160;        uint8_t <a class="code" href="struct_ep_info.html#aa2ca775b63736df4008e88da7dd4dddb">maxPktSize</a>; <span class="comment">// Maximum packet size</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        <span class="keyword">union </span>{</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="code" href="struct_ep_info.html#a1dea928517c961235eef7b0876e69f10">   37</a></span>&#160;                uint8_t <a class="code" href="struct_ep_info.html#a1dea928517c961235eef7b0876e69f10">epAttribs</a>;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;                <span class="keyword">struct </span>{</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="code" href="struct_ep_info.html#ac85bff70ad0e5d71e50cb501f4d8caf3">   40</a></span>&#160;                        uint8_t <a class="code" href="struct_ep_info.html#ac85bff70ad0e5d71e50cb501f4d8caf3">bmSndToggle</a> : 1; <span class="comment">// Send toggle, when zero bmSNDTOG0, bmSNDTOG1 otherwise</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="code" href="struct_ep_info.html#a9238dd40c096baedf041c98b19386a14">   41</a></span>&#160;                        uint8_t <a class="code" href="struct_ep_info.html#a9238dd40c096baedf041c98b19386a14">bmRcvToggle</a> : 1; <span class="comment">// Send toggle, when zero bmRCVTOG0, bmRCVTOG1 otherwise</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="struct_ep_info.html#a3a5b1c017a034cd9e06e76729e727c46">   42</a></span>&#160;                        uint8_t <a class="code" href="struct_ep_info.html#a3a5b1c017a034cd9e06e76729e727c46">bmNakPower</a> : 6; <span class="comment">// Binary order for NAK_LIMIT value</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;                } __attribute__((packed));</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;        };</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;} __attribute__((packed));</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment">//    7   6   5   4   3   2   1   0</span></div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;<span class="comment">//  ---------------------------------</span></div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment">//  |   | H | P | P | P | A | A | A |</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment">//  ---------------------------------</span></div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">// H - if 1 the address is a hub address</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment">// P - parent hub address</span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment">// A - device address / port number in case of hub</span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;</div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="struct_usb_device_address.html">   57</a></span>&#160;<span class="keyword">struct </span><a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a> {</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        <span class="keyword">union </span>{</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                <span class="keyword">struct </span>{</div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="code" href="struct_usb_device_address.html#ae12b0ac1b76a34d0a5080cc62f41c622">   62</a></span>&#160;                        uint8_t <a class="code" href="struct_usb_device_address.html#ae12b0ac1b76a34d0a5080cc62f41c622">bmAddress</a> : 3; <span class="comment">// device address/port number</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="code" href="struct_usb_device_address.html#abd628d37834249af6518f320f3f19065">   63</a></span>&#160;                        uint8_t <a class="code" href="struct_usb_device_address.html#abd628d37834249af6518f320f3f19065">bmParent</a> : 3; <span class="comment">// parent hub address</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"><a class="code" href="struct_usb_device_address.html#a0a8f124a7e7a2ba116e70c2fbf0c551e">   64</a></span>&#160;                        uint8_t <a class="code" href="struct_usb_device_address.html#a0a8f124a7e7a2ba116e70c2fbf0c551e">bmHub</a> : 1; <span class="comment">// hub flag</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="struct_usb_device_address.html#a28e8292497f782fbe83f97ac70eb0aef">   65</a></span>&#160;                        uint8_t <a class="code" href="struct_usb_device_address.html#a28e8292497f782fbe83f97ac70eb0aef">bmReserved</a> : 1; <span class="comment">// reserved, must be zerro</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;                } __attribute__((packed));</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="code" href="struct_usb_device_address.html#a79ed442d6a357907ddb4d1697bd6af5f">   67</a></span>&#160;                uint8_t <a class="code" href="struct_usb_device_address.html#a79ed442d6a357907ddb4d1697bd6af5f">devAddress</a>;</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;        };</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;} __attribute__((packed));</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div>
<div class="line"><a name="l00071"></a><span class="lineno"><a class="code" href="address_8h.html#a3002da1b823cafeeac8ba4a33bb96905">   71</a></span>&#160;<span class="preprocessor">#define bmUSB_DEV_ADDR_ADDRESS      0x07</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"><a class="code" href="address_8h.html#a61b78658a9cc75f61841f2a0ac8e54fa">   72</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define bmUSB_DEV_ADDR_PARENT       0x38</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"><a class="code" href="address_8h.html#a32dbe85cf751ca8428d34c45a1931655">   73</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define bmUSB_DEV_ADDR_HUB      0x40</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00075"></a><span class="lineno"><a class="code" href="struct_usb_device.html">   75</a></span>&#160;<span class="keyword">struct </span><a class="code" href="struct_usb_device.html">UsbDevice</a> {</div>
<div class="line"><a name="l00076"></a><span class="lineno"><a class="code" href="struct_usb_device.html#a410d39fb7758157f57794335e990ed02">   76</a></span>&#160;        <a class="code" href="struct_ep_info.html">EpInfo</a> *<a class="code" href="struct_usb_device.html#a410d39fb7758157f57794335e990ed02">epinfo</a>; <span class="comment">// endpoint info pointer</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">   77</a></span>&#160;        uint8_t <a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a>; <span class="comment">// address</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="code" href="struct_usb_device.html#a828814f5231b866ac665a24ec5edaa3a">   78</a></span>&#160;        uint8_t <a class="code" href="struct_usb_device.html#a828814f5231b866ac665a24ec5edaa3a">epcount</a>; <span class="comment">// number of endpoints</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="code" href="struct_usb_device.html#a86a815577ad7883437d3ca72b32b8e8a">   79</a></span>&#160;        <span class="keywordtype">bool</span> <a class="code" href="struct_usb_device.html#a86a815577ad7883437d3ca72b32b8e8a">lowspeed</a>; <span class="comment">// indicates if a device is the low speed one</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        <span class="comment">//  uint8_t         devclass;       // device class</span></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;} __attribute__((packed));</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div>
<div class="line"><a name="l00083"></a><span class="lineno"><a class="code" href="class_address_pool.html">   83</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_address_pool.html">AddressPool</a> {</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;        <span class="keyword">virtual</span> <a class="code" href="struct_usb_device.html">UsbDevice</a>* <a class="code" href="class_address_pool.html#aa92d7e8f0f515340ae2dc1679b627056">GetUsbDevicePtr</a>(uint8_t addr) = 0;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;        <span class="keyword">virtual</span> uint8_t <a class="code" href="class_address_pool.html#a97df4ef42e50960ce2165f4cdb53e590">AllocAddress</a>(uint8_t parent, <span class="keywordtype">bool</span> is_hub = <span class="keyword">false</span>, uint8_t port = 0) = 0;</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_address_pool.html#a15fde13223dcb1da89305ad229763562">FreeAddress</a>(uint8_t addr) = 0;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;};</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;</div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="code" href="address_8h.html#a90edb051235924cb5280032df397f393">   90</a></span>&#160;<span class="keyword">typedef</span> void (*<a class="code" href="address_8h.html#a90edb051235924cb5280032df397f393">UsbDeviceHandleFunc</a>)(<a class="code" href="struct_usb_device.html">UsbDevice</a> *pdev);</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="code" href="address_8h.html#abeb4f5491e26a7f2cbf9201575d38104">   92</a></span>&#160;<span class="preprocessor">#define ADDR_ERROR_INVALID_INDEX        0xFF</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"><a class="code" href="address_8h.html#a8c4dc7975c713673cd832a3502f068d7">   93</a></span>&#160;<span class="preprocessor"></span><span class="preprocessor">#define ADDR_ERROR_INVALID_ADDRESS      0xFF</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="keyword">template</span> &lt;const u<span class="keywordtype">int</span>8_t MAX_DEVICES_ALLOWED&gt;</div>
<div class="line"><a name="l00096"></a><span class="lineno"><a class="code" href="class_address_pool_impl.html">   96</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_address_pool_impl.html">AddressPoolImpl</a> : <span class="keyword">public</span> <a class="code" href="class_address_pool.html">AddressPool</a> {</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;        <a class="code" href="struct_ep_info.html">EpInfo</a> dev0ep; <span class="comment">//Endpoint data structure used during enumeration for uninitialized device</span></div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;        uint8_t hubCounter; <span class="comment">// hub counter is kept</span></div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;        <span class="comment">// in order to avoid hub address duplication</span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        <a class="code" href="struct_usb_device.html">UsbDevice</a> thePool[MAX_DEVICES_ALLOWED];</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;        <span class="comment">// Initializes address pool entry</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;        <span class="keywordtype">void</span> InitEntry(uint8_t index) {</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;                thePool[index].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a> = 0;</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;                thePool[index].<a class="code" href="struct_usb_device.html#a828814f5231b866ac665a24ec5edaa3a">epcount</a> = 1;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;                thePool[index].<a class="code" href="struct_usb_device.html#a86a815577ad7883437d3ca72b32b8e8a">lowspeed</a> = 0;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                thePool[index].<a class="code" href="struct_usb_device.html#a410d39fb7758157f57794335e990ed02">epinfo</a> = &amp;dev0ep;</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        };</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;        <span class="comment">// Returns thePool index for a given address</span></div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;        uint8_t FindAddressIndex(uint8_t address = 0) {</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;                <span class="keywordflow">for</span>(uint8_t i = 1; i &lt; MAX_DEVICES_ALLOWED; i++) {</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;                        <span class="keywordflow">if</span>(thePool[i].address == address)</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                                <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;                }</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;        };</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;        <span class="comment">// Returns thePool child index for a given parent</span></div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;        uint8_t FindChildIndex(<a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a> addr, uint8_t start = 1) {</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                <span class="keywordflow">for</span>(uint8_t i = (start &lt; 1 || start &gt;= MAX_DEVICES_ALLOWED) ? 1 : start; i &lt; MAX_DEVICES_ALLOWED; i++) {</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;                        <span class="keywordflow">if</span>(((<a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a>*) &amp; thePool[i].address)-&gt;bmParent == addr.<a class="code" href="struct_usb_device_address.html#ae12b0ac1b76a34d0a5080cc62f41c622">bmAddress</a>)</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;                                <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;                }</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        };</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        <span class="comment">// Frees address entry specified by index parameter</span></div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        <span class="keywordtype">void</span> FreeAddressByIndex(uint8_t index) {</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;                <span class="comment">// Zerro field is reserved and should not be affected</span></div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;                <span class="keywordflow">if</span>(index == 0)</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;                        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;                <span class="comment">// If a hub was switched off all port addresses should be freed</span></div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;                <span class="keywordflow">if</span>(((<a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a>*) &amp; thePool[index].address)-&gt;bmHub == 1) {</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;                        <span class="keywordflow">for</span>(uint8_t i = 1; (i = FindChildIndex(*((<a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a>*) &amp; thePool[index].address), i));)</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;                                FreeAddressByIndex(i);</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;                        <span class="comment">// If the hub had the last allocated address, hubCounter should be decremented</span></div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;                        <span class="keywordflow">if</span>(hubCounter == ((<a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a>*) &amp; thePool[index].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a>)-&gt;bmAddress)</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;                                hubCounter--;</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;                }</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;                InitEntry(index);</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;        }</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;        <span class="comment">// Initializes the whole address pool at once</span></div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;        <span class="keywordtype">void</span> InitAllAddresses() {</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;                <span class="keywordflow">for</span>(uint8_t i = 1; i &lt; MAX_DEVICES_ALLOWED; i++)</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;                        InitEntry(i);</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                hubCounter = 0;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;        };</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div>
<div class="line"><a name="l00159"></a><span class="lineno"><a class="code" href="class_address_pool_impl.html#aeaf73d809ebb97bb1015789b8dc31ffa">  159</a></span>&#160;        <a class="code" href="class_address_pool_impl.html#aeaf73d809ebb97bb1015789b8dc31ffa">AddressPoolImpl</a>() : hubCounter(0) {</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;                <span class="comment">// Zero address is reserved</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;                InitEntry(0);</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;                thePool[0].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a> = 0;</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                thePool[0].<a class="code" href="struct_usb_device.html#a410d39fb7758157f57794335e990ed02">epinfo</a> = &amp;dev0ep;</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;                dev0ep.<a class="code" href="struct_ep_info.html#a9f92be74c75c037b39e2cae1eb49b89b">epAddr</a> = 0;</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;                dev0ep.<a class="code" href="struct_ep_info.html#aa2ca775b63736df4008e88da7dd4dddb">maxPktSize</a> = 8;</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;                dev0ep.<a class="code" href="struct_ep_info.html#a1dea928517c961235eef7b0876e69f10">epAttribs</a> = 0; <span class="comment">//set DATA0/1 toggles to 0</span></div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;                dev0ep.<a class="code" href="struct_ep_info.html#a3a5b1c017a034cd9e06e76729e727c46">bmNakPower</a> = <a class="code" href="address_8h.html#a517dfa014946e2d087d197312234a1de">USB_NAK_MAX_POWER</a>;</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                InitAllAddresses();</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;        };</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;        <span class="comment">// Returns a pointer to a specified address entry</span></div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div>
<div class="line"><a name="l00174"></a><span class="lineno"><a class="code" href="class_address_pool_impl.html#aa3e12dda249ef6acbb27592fc8fe1cba">  174</a></span>&#160;        <span class="keyword">virtual</span> <a class="code" href="struct_usb_device.html">UsbDevice</a>* <a class="code" href="class_address_pool_impl.html#aa3e12dda249ef6acbb27592fc8fe1cba">GetUsbDevicePtr</a>(uint8_t addr) {</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;                <span class="keywordflow">if</span>(!addr)</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                        <span class="keywordflow">return</span> thePool;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;                uint8_t index = FindAddressIndex(addr);</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;                <span class="keywordflow">return</span>(!index) ? NULL : thePool + index;</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;        };</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;        <span class="comment">// Performs an operation specified by pfunc for each addressed device</span></div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;</div>
<div class="line"><a name="l00185"></a><span class="lineno"><a class="code" href="class_address_pool_impl.html#a09e6dc797f82543eba0879369116182e">  185</a></span>&#160;        <span class="keywordtype">void</span> <a class="code" href="class_address_pool_impl.html#a09e6dc797f82543eba0879369116182e">ForEachUsbDevice</a>(<a class="code" href="address_8h.html#a90edb051235924cb5280032df397f393">UsbDeviceHandleFunc</a> pfunc) {</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;                <span class="keywordflow">if</span>(!pfunc)</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;                        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;                <span class="keywordflow">for</span>(uint8_t i = 1; i &lt; MAX_DEVICES_ALLOWED; i++)</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;                        <span class="keywordflow">if</span>(thePool[i].address)</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;                                pfunc(thePool + i);</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;        };</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        <span class="comment">// Allocates new address</span></div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;</div>
<div class="line"><a name="l00195"></a><span class="lineno"><a class="code" href="class_address_pool_impl.html#a14657183c73c631754b31bd0cc588c87">  195</a></span>&#160;        <span class="keyword">virtual</span> uint8_t <a class="code" href="class_address_pool_impl.html#a14657183c73c631754b31bd0cc588c87">AllocAddress</a>(uint8_t parent, <span class="keywordtype">bool</span> is_hub = <span class="keyword">false</span>, uint8_t port = 0) {</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;                <span class="comment">/* if (parent != 0 &amp;&amp; port == 0)</span></div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;<span class="comment">                        USB_HOST_SERIAL.println(&quot;PRT:0&quot;); */</span></div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;                <span class="keywordflow">if</span>(parent &gt; 127 || port &gt; 7)</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;                        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;                <span class="keywordflow">if</span>(is_hub &amp;&amp; hubCounter == 7)</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;                        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;                <span class="comment">// finds first empty address entry starting from one</span></div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;                uint8_t index = FindAddressIndex(0);</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;                <span class="keywordflow">if</span>(!index) <span class="comment">// if empty entry is not found</span></div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;                        <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;                <span class="keywordflow">if</span>(parent == 0) {</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;                        <span class="keywordflow">if</span>(is_hub) {</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;                                thePool[index].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a> = 0x41;</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;                                hubCounter++;</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;                        } <span class="keywordflow">else</span></div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;                                thePool[index].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a> = 1;</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;                        <span class="keywordflow">return</span> thePool[index].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a>;</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;                }</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;                <a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a> addr;</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;                addr.<a class="code" href="struct_usb_device_address.html#abd628d37834249af6518f320f3f19065">bmParent</a> = ((<a class="code" href="struct_usb_device_address.html">UsbDeviceAddress</a>*) &amp; parent)-&gt;bmAddress;</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;                <span class="keywordflow">if</span>(is_hub) {</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;                        addr.<a class="code" href="struct_usb_device_address.html#a0a8f124a7e7a2ba116e70c2fbf0c551e">bmHub</a> = 1;</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;                        addr.<a class="code" href="struct_usb_device_address.html#ae12b0ac1b76a34d0a5080cc62f41c622">bmAddress</a> = ++hubCounter;</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;                } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;                        addr.<a class="code" href="struct_usb_device_address.html#a0a8f124a7e7a2ba116e70c2fbf0c551e">bmHub</a> = 0;</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;                        addr.<a class="code" href="struct_usb_device_address.html#ae12b0ac1b76a34d0a5080cc62f41c622">bmAddress</a> = port;</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;                }</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;                thePool[index].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a> = *((uint8_t*) &amp; addr);</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;                <span class="comment">/*</span></div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;<span class="comment">                                USB_HOST_SERIAL.print(&quot;Addr:&quot;);</span></div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;<span class="comment">                                USB_HOST_SERIAL.print(addr.bmHub, HEX);</span></div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;<span class="comment">                                USB_HOST_SERIAL.print(&quot;.&quot;);</span></div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;<span class="comment">                                USB_HOST_SERIAL.print(addr.bmParent, HEX);</span></div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;<span class="comment">                                USB_HOST_SERIAL.print(&quot;.&quot;);</span></div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;<span class="comment">                                USB_HOST_SERIAL.println(addr.bmAddress, HEX);</span></div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;<span class="comment">                 */</span></div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;                <span class="keywordflow">return</span> thePool[index].<a class="code" href="struct_usb_device.html#a855beb4cbe3e48b93298ea44d6cae86f">address</a>;</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;        };</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;        <span class="comment">// Empties pool entry</span></div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;</div>
<div class="line"><a name="l00245"></a><span class="lineno"><a class="code" href="class_address_pool_impl.html#a3d59841faa336c359b0736ca45988ce5">  245</a></span>&#160;        <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_address_pool_impl.html#a3d59841faa336c359b0736ca45988ce5">FreeAddress</a>(uint8_t addr) {</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;                <span class="comment">// if the root hub is disconnected all the addresses should be initialized</span></div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;                <span class="keywordflow">if</span>(addr == 0x41) {</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;                        InitAllAddresses();</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;                        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;                }</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;                uint8_t index = FindAddressIndex(addr);</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;                FreeAddressByIndex(index);</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;        };</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;        <span class="comment">// Returns number of hubs attached</span></div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;        <span class="comment">// It can be rather helpfull to find out if there are hubs attached than getting the exact number of hubs.</span></div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;        <span class="comment">//uint8_t GetNumHubs()</span></div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;        <span class="comment">//{</span></div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;        <span class="comment">//  return hubCounter;</span></div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;        <span class="comment">//};</span></div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;        <span class="comment">//uint8_t GetNumDevices()</span></div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;        <span class="comment">//{</span></div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;        <span class="comment">//  uint8_t counter = 0;</span></div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;        <span class="comment">//  for (uint8_t i=1; i&lt;MAX_DEVICES_ALLOWED; i++)</span></div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;        <span class="comment">//      if (thePool[i].address != 0);</span></div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;        <span class="comment">//          counter ++;</span></div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;        <span class="comment">//  return counter;</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;        <span class="comment">//};</span></div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;};</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;<span class="preprocessor">#endif // __ADDRESS_H__</span></div>
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