<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.16"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>UbixOS: sys/device.c Source File</title> <link href="../../tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="../../jquery.js"></script> <script type="text/javascript" src="../../dynsections.js"></script> <link href="../../navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="../../resize.js"></script> <script type="text/javascript" src="../../navtreedata.js"></script> <script type="text/javascript" src="../../navtree.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(initResizable); /* @license-end */</script> <link href="../../doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">UbixOS  <span id="projectnumber">2.0</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.16 --> <script type="text/javascript" src="../../menudata.js"></script> <script type="text/javascript" src="../../menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(function() { initMenu('../../',false,false,'search.php','Search'); }); /* @license-end */</script> <div id="main-nav"></div> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('d5/d96/device_8c_source.html','../../');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">device.c</div> </div> </div><!--header--> <div class="contents"> <a href="../../d5/d96/device_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*-</span></div> <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2002-2018 The UbixOS Project.</span></div> <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * All rights reserved.</span></div> <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div> <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This was developed by Christopher W. Olsen for the UbixOS Project.</span></div> <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification, are permitted</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * provided that the following conditions are met:</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1) Redistributions of source code must retain the above copyright notice, this list of</span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * conditions, the following disclaimer and the list of authors.</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * 2) Redistributions in binary form must reproduce the above copyright notice, this list of</span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * conditions, the following disclaimer and the list of authors in the documentation and/or</span></div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * other materials provided with the distribution.</span></div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * 3) Neither the name of the UbixOS Project nor the names of its contributors may be used to</span></div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * endorse or promote products derived from this software without specific prior written</span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * permission.</span></div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> *</span></div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED</span></div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS</span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,</span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT</span></div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  </div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="../../d4/d7e/include_2sys_2device_8h.html">sys/device.h</a>></span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="../../df/d63/spinlock_8h.html">ubixos/spinlock.h</a>></span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <<a class="code" href="../../d4/d03/kmalloc_8h.html">lib/kmalloc.h</a>></span></div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="../../da/d28/kprintf_8h.html">lib/kprintf.h</a>></span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <<a class="code" href="../../dc/da7/assert_8h.html">assert.h</a>></span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  </div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">/* Linked list of drivers loaded in the system accessable by the subsystem only */</span></div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="../../de/d35/structdevice__node.html">device_node</a> *devices = 0x0;</div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="../../d1/daf/structspinLock.html">spinLock</a> deviceSpinLock = <a class="code" href="../../df/d63/spinlock_8h.html#a0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">/*****************************************************************************************</span></div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"></span> </div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> Function: int deviceAdd(int minor,char type,struct device_interface *devInfo);</span></div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"></span> </div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> Description: This will add a device to the system</span></div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"></span> </div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> Notes:</span></div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"></span> </div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> 05/19/2004 - Improving Upon the spec</span></div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"></span> </div> <div class="line"><a name="l00049"></a><span class="lineno"><a class="line" href="../../d5/d96/device_8c.html#a24bac04b529afec40daa960bd7e7b8ee"> 49</a></span> <span class="comment"> *****************************************************************************************/</span></div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keywordtype">int</span> <a class="code" href="../../d5/d96/device_8c.html#a24bac04b529afec40daa960bd7e7b8ee">device_add</a>(<span class="keywordtype">int</span> minor, <span class="keywordtype">char</span> type, <span class="keyword">struct</span> <a class="code" href="../../dc/de2/structdevice__interface.html">device_interface</a> *devInfo) {</div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">struct </span><a class="code" href="../../de/d35/structdevice__node.html">device_node</a> *tmpDev = 0x0;</div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  tmpDev = (<span class="keyword">struct </span><a class="code" href="../../de/d35/structdevice__node.html">device_node</a> *) <a class="code" href="../../d4/d03/kmalloc_8h.html#a150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="../../de/d35/structdevice__node.html">device_node</a>));</div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">if</span> (tmpDev == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="../../da/d28/kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"Error Adding Device: memory failure\n"</span>);</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a7ec9182b21c0911760a148ac77a7e2a2">prev</a> = 0x0;</div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a3817327901b55e2ca15b2e4dfa20789f">minor</a> = <a class="code" href="../../de/d35/structdevice__node.html#a3817327901b55e2ca15b2e4dfa20789f">minor</a>;</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a431c348cd0c27dceca9b3cd14ec6659d">type</a> = <a class="code" href="../../de/d35/structdevice__node.html#a431c348cd0c27dceca9b3cd14ec6659d">type</a>;</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a> = <a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a>;</div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">next</a> = devices;</div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  devices = tmpDev;</div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  </div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a>-><a class="code" href="../../dc/de2/structdevice__interface.html#a561678212ee39a09ce43c1a3567c64e2">initialized</a> == 0x0)</div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> (tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a>-><a class="code" href="../../dc/de2/structdevice__interface.html#a5a20c2397cc4ac3fbb9afe36bea1cfd1">init</a>(tmpDev));</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> (0x0);</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> }</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  </div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment">/*****************************************************************************************</span></div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"></span> </div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment"> Function: struct device_node *deviceFind(int major,int minor);</span></div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment"></span> </div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"> Description: This will find a device based on major minor</span></div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"></span> </div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"> Notes:</span></div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"></span> </div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> 05/19/2004 - Improving Upon the spec</span></div> <div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="../../d5/d96/device_8c.html#a0002a4ec01ee11597c6751602f3e4c3d"> 82</a></span> <span class="comment"></span> </div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> *****************************************************************************************/</span></div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">struct </span><a class="code" href="../../de/d35/structdevice__node.html">device_node</a> *<a class="code" href="../../d5/d96/device_8c.html#a0002a4ec01ee11597c6751602f3e4c3d">device_find</a>(<span class="keywordtype">int</span> major, <span class="keywordtype">int</span> <a class="code" href="../../de/d35/structdevice__node.html#a3817327901b55e2ca15b2e4dfa20789f">minor</a>) {</div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keyword">struct </span><a class="code" href="../../de/d35/structdevice__node.html">device_node</a> *tmpDev = 0x0;</div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  </div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">for</span> (tmpDev = devices; tmpDev; tmpDev = tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">next</a>) {</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> ((tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a>-><a class="code" href="../../dc/de2/structdevice__interface.html#a7eb42b0bb3e06dbc9183531a5e59ddb8">major</a> == major) && (tmpDev-><a class="code" href="../../de/d35/structdevice__node.html#a3817327901b55e2ca15b2e4dfa20789f">minor</a> == <a class="code" href="../../de/d35/structdevice__node.html#a3817327901b55e2ca15b2e4dfa20789f">minor</a>)) {</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">return</span> (tmpDev);</div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  }</div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  </div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">return</span> (0x0);</div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> }</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  </div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment">/********************************************************************************************</span></div> <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"></span> </div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment"> Function: int deviceRemove(struct *device_node);</span></div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment"></span> </div> <div class="line"><a name="l00104"></a><span class="lineno"><a class="line" href="../../d5/d96/device_8c.html#ab6cc746d95021f087eb5aef767050e71"> 104</a></span> <span class="comment"> Description: This will remove a device based on it's pointer</span></div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="comment"></span> </div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="comment"> *********************************************************************************************/</span></div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keywordtype">int</span> <a class="code" href="../../d5/d96/device_8c.html#ab6cc746d95021f087eb5aef767050e71">device_remove</a>(<span class="keyword">struct</span> <a class="code" href="../../de/d35/structdevice__node.html">device_node</a> *deviceToDelete) {</div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">struct </span><a class="code" href="../../de/d35/structdevice__node.html">device_node</a> *current, *previous;</div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  </div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  current = devices;</div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  previous = <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">while</span> (current != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">if</span> (current == deviceToDelete)</div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">break</span>;</div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">else</span> {</div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  previous = current;</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  current = current-><a class="code" href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">next</a>;</div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  }</div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  }</div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (current == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">return</span> 1;</div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  }</div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">else</span> {</div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span> (current == devices)</div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  devices = devices-><a class="code" href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">next</a>;</div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  previous-><a class="code" href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">next</a> = current-><a class="code" href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">next</a>;</div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="../../d4/d03/kmalloc_8h.html#aaa9ed6886459604cf73ccdbf6410e487">kfree</a>(current);</div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">return</span> 1;</div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  </div> <div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&deviceSpinLock);</div> <div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> 0x0;</div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span> }</div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <div class="ttc" id="astructdevice__node_html_a431c348cd0c27dceca9b3cd14ec6659d"><div class="ttname"><a href="../../de/d35/structdevice__node.html#a431c348cd0c27dceca9b3cd14ec6659d">device_node::type</a></div><div class="ttdeci">char type</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00039">device.h:39</a></div></div> <div class="ttc" id="adevice_8c_html_ab6cc746d95021f087eb5aef767050e71"><div class="ttname"><a href="../../d5/d96/device_8c.html#ab6cc746d95021f087eb5aef767050e71">device_remove</a></div><div class="ttdeci">int device_remove(struct device_node *deviceToDelete)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d96/device_8c_source.html#l00104">device.c:104</a></div></div> <div class="ttc" id="astructdevice__interface_html_a561678212ee39a09ce43c1a3567c64e2"><div class="ttname"><a href="../../dc/de2/structdevice__interface.html#a561678212ee39a09ce43c1a3567c64e2">device_interface::initialized</a></div><div class="ttdeci">uInt8 initialized</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00048">device.h:48</a></div></div> <div class="ttc" id="aspinlock_8h_html"><div class="ttname"><a href="../../df/d63/spinlock_8h.html">spinlock.h</a></div></div> <div class="ttc" id="astructdevice__interface_html"><div class="ttname"><a href="../../dc/de2/structdevice__interface.html">device_interface</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00047">device.h:47</a></div></div> <div class="ttc" id="astructdevice__node_html_a747f88b0cd43b7b710d8fb86ea50fbaf"><div class="ttname"><a href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">device_node::next</a></div><div class="ttdeci">struct device_node * next</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00036">device.h:36</a></div></div> <div class="ttc" id="adevice_8c_html_a24bac04b529afec40daa960bd7e7b8ee"><div class="ttname"><a href="../../d5/d96/device_8c.html#a24bac04b529afec40daa960bd7e7b8ee">device_add</a></div><div class="ttdeci">int device_add(int minor, char type, struct device_interface *devInfo)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d96/device_8c_source.html#l00049">device.c:49</a></div></div> <div class="ttc" id="akmalloc_8h_html_aaa9ed6886459604cf73ccdbf6410e487"><div class="ttname"><a href="../../d4/d03/kmalloc_8h.html#aaa9ed6886459604cf73ccdbf6410e487">kfree</a></div><div class="ttdeci">void kfree(void *baseAddr)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d1a/kmalloc_8c_source.html#l00342">kmalloc.c:342</a></div></div> <div class="ttc" id="aassert_8h_html"><div class="ttname"><a href="../../dc/da7/assert_8h.html">assert.h</a></div></div> <div class="ttc" id="aarmv6_2spinlock_8c_html_ae29ab191c93f9ead066cb462dd2e7247"><div class="ttname"><a href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a></div><div class="ttdeci">void spinUnlock(spinLock_t *lock)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d88/armv6_2spinlock_8c_source.html#l00036">spinlock.c:36</a></div></div> <div class="ttc" id="astructdevice__node_html_a7ec9182b21c0911760a148ac77a7e2a2"><div class="ttname"><a href="../../de/d35/structdevice__node.html#a7ec9182b21c0911760a148ac77a7e2a2">device_node::prev</a></div><div class="ttdeci">struct device_node * prev</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00035">device.h:35</a></div></div> <div class="ttc" id="aspinlock_8h_html_a0fe85a4f3642683148b25916d6c5eafd"><div class="ttname"><a href="../../df/d63/spinlock_8h.html#a0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a></div><div class="ttdeci">#define SPIN_LOCK_INITIALIZER</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d63/spinlock_8h_source.html#l00036">spinlock.h:36</a></div></div> <div class="ttc" id="aarmv6_2spinlock_8c_html_a71f03d2ba55111c715b6068254847a53"><div class="ttname"><a href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a></div><div class="ttdeci">void spinLock(spinLock_t *lock)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d88/armv6_2spinlock_8c_source.html#l00055">spinlock.c:55</a></div></div> <div class="ttc" id="astructdevice__node_html_a3817327901b55e2ca15b2e4dfa20789f"><div class="ttname"><a href="../../de/d35/structdevice__node.html#a3817327901b55e2ca15b2e4dfa20789f">device_node::minor</a></div><div class="ttdeci">int minor</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00040">device.h:40</a></div></div> <div class="ttc" id="akprintf_8h_html"><div class="ttname"><a href="../../da/d28/kprintf_8h.html">kprintf.h</a></div></div> <div class="ttc" id="astructdevice__node_html"><div class="ttname"><a href="../../de/d35/structdevice__node.html">device_node</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00034">device.h:34</a></div></div> <div class="ttc" id="astructdevice__interface_html_a5a20c2397cc4ac3fbb9afe36bea1cfd1"><div class="ttname"><a href="../../dc/de2/structdevice__interface.html#a5a20c2397cc4ac3fbb9afe36bea1cfd1">device_interface::init</a></div><div class="ttdeci">int(* init)(void *)</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00055">device.h:55</a></div></div> <div class="ttc" id="adevice_8c_html_a0002a4ec01ee11597c6751602f3e4c3d"><div class="ttname"><a href="../../d5/d96/device_8c.html#a0002a4ec01ee11597c6751602f3e4c3d">device_find</a></div><div class="ttdeci">struct device_node * device_find(int major, int minor)</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d96/device_8c_source.html#l00082">device.c:82</a></div></div> <div class="ttc" id="ainclude_2sys_2device_8h_html"><div class="ttname"><a href="../../d4/d7e/include_2sys_2device_8h.html">device.h</a></div></div> <div class="ttc" id="akmalloc_8h_html_a150eab2ac4ce4553e21ca10e7f441762"><div class="ttname"><a href="../../d4/d03/kmalloc_8h.html#a150eab2ac4ce4553e21ca10e7f441762">kmalloc</a></div><div class="ttdeci">void * kmalloc(uInt32 len)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d1a/kmalloc_8c_source.html#l00241">kmalloc.c:241</a></div></div> <div class="ttc" id="astructspinLock_html"><div class="ttname"><a href="../../d1/daf/structspinLock.html">spinLock</a></div><div class="ttdef"><b>Definition:</b> <a href="../../df/d63/spinlock_8h_source.html#l00041">spinlock.h:41</a></div></div> <div class="ttc" id="astructdevice__node_html_a588d09d5dabf1c8866d359aaac799b1c"><div class="ttname"><a href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">device_node::devInfo</a></div><div class="ttdeci">struct device_interface * devInfo</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00037">device.h:37</a></div></div> <div class="ttc" id="akprintf_8h_html_a20b56810edb62a6fe59917015c30848f"><div class="ttname"><a href="../../da/d28/kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a></div><div class="ttdeci">int kprintf(const char *,...)</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d87/kprintf_8c_source.html#l00259">kprintf.c:259</a></div></div> <div class="ttc" id="astructdevice__interface_html_a7eb42b0bb3e06dbc9183531a5e59ddb8"><div class="ttname"><a href="../../dc/de2/structdevice__interface.html#a7eb42b0bb3e06dbc9183531a5e59ddb8">device_interface::major</a></div><div class="ttdeci">int major</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d7e/include_2sys_2device_8h_source.html#l00050">device.h:50</a></div></div> <div class="ttc" id="akmalloc_8h_html"><div class="ttname"><a href="../../d4/d03/kmalloc_8h.html">kmalloc.h</a></div></div> <div class="ttc" id="afat__string_8h_html_a070d2ce7b6bb7e5c05602aa8c308d0c4"><div class="ttname"><a href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></div><div class="ttdeci">#define NULL</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d8a/fat__string_8h_source.html#l00017">fat_string.h:17</a></div></div> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="../../dir_a408b6d3a4a484720bc3ecfeac8947e3.html">sys</a></li><li class="navelem"><a class="el" href="../../d5/d96/device_8c.html">device.c</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="../../doxygen.png" alt="doxygen"/></a> 1.8.16 </li> </ul> </div> </body> </html>