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<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>&#160;<span class="comment">/*-</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2002-2018 The UbixOS Project.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<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>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<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>&#160;<span class="comment"> * provided that the following conditions are met:</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"> * 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>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment"> *    other materials provided with the distribution.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<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>&#160;<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>&#160;<span class="comment"> *    permission.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<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>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160; </div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="../../d4/d7e/include_2sys_2device_8h.html">sys/device.h</a>&gt;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="../../df/d63/spinlock_8h.html">ubixos/spinlock.h</a>&gt;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="../../d4/d03/kmalloc_8h.html">lib/kmalloc.h</a>&gt;</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="../../da/d28/kprintf_8h.html">lib/kprintf.h</a>&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="../../dc/da7/assert_8h.html">assert.h</a>&gt;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<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>&#160;<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>&#160;<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>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">/*****************************************************************************************</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<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>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<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>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment"> Notes:</span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;<span class="comment"> 05/19/2004 - Improving Upon the spec</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"><a class="line" href="../../d5/d96/device_8c.html#a24bac04b529afec40daa960bd7e7b8ee">   49</a></span>&#160;<span class="comment"> *****************************************************************************************/</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<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>&#160;  <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>&#160; </div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  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>&#160;  <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>&#160;    <a class="code" href="../../da/d28/kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">&quot;Error Adding Device: memory failure\n&quot;</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">   57</span>&#160;  tmpDev-&gt;<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>&#160;  tmpDev-&gt;<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>&#160;  tmpDev-&gt;<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>&#160;  tmpDev-&gt;<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>&#160; </div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;  tmpDev-&gt;<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>&#160;  devices = tmpDev;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160; </div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;  <span class="keywordflow">if</span> (tmpDev-&gt;<a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a>-&gt;<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>&#160;    <span class="keywordflow">return</span> (tmpDev-&gt;<a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a>-&gt;<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>&#160;  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;}</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160; </div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="comment">/*****************************************************************************************</span></div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<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>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<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>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment"> Notes:</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<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>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;<span class="comment"> *****************************************************************************************/</span></div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<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>&#160;  <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>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&amp;deviceSpinLock);</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;  <span class="keywordflow">for</span> (tmpDev = devices; tmpDev; tmpDev = tmpDev-&gt;<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>&#160;    <span class="keywordflow">if</span> ((tmpDev-&gt;<a class="code" href="../../de/d35/structdevice__node.html#a588d09d5dabf1c8866d359aaac799b1c">devInfo</a>-&gt;<a class="code" href="../../dc/de2/structdevice__interface.html#a7eb42b0bb3e06dbc9183531a5e59ddb8">major</a> == major) &amp;&amp; (tmpDev-&gt;<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>&#160;      <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;      <span class="keywordflow">return</span> (tmpDev);</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    }</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;  }</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160; </div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;  <span class="keywordflow">return</span> (0x0);</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; </div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="comment">/********************************************************************************************</span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;<span class="comment"> Function: int deviceRemove(struct *device_node);</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;<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>&#160;<span class="comment"> Description: This will remove a device based on it&#39;s pointer</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="comment"> *********************************************************************************************/</span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<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>&#160;  <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>&#160; </div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  current = devices;</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  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>&#160;  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;  <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>&#160;    <span class="keywordflow">if</span> (current == deviceToDelete)</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;      <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;      previous = current;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;      current = current-&gt;<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>&#160;    }</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="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>&#160;    <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;  }</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <span class="keywordflow">if</span> (current == devices)</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;      devices = devices-&gt;<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>&#160;    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;      previous-&gt;<a class="code" href="../../de/d35/structdevice__node.html#a747f88b0cd43b7b710d8fb86ea50fbaf">next</a> = current-&gt;<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>&#160;    <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>&#160;    <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;  }</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160; </div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&amp;deviceSpinLock);</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;  <span class="keywordflow">return</span> 0x0;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;}</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>
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