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<div class="title">tty.c</div> </div>
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<a href="../../dc/d03/tty_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="../../dd/d71/tty_8h.html">ubixos/tty.h</a>></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="../../d3/d24/kpanic_8h.html">ubixos/kpanic.h</a>></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</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="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="../../d4/d03/kmalloc_8h.html">lib/kmalloc.h</a>></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="../../dc/dac/io_8h.html">sys/io.h</a>></span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <<a class="code" href="../../da/d66/string_8h.html">string.h</a>></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">static</span> <a class="code" href="../../df/d2f/structtty__termNode.html">tty_term</a> *terms = 0x0;</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86"> 38</a></span> <a class="code" href="../../df/d2f/structtty__termNode.html">tty_term</a> *<a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a> = 0x0;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="../../d1/daf/structspinLock.html">spinLock</a> tty_spinLock = <a class="code" href="../../df/d63/spinlock_8h.html#a0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  </div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="../../dc/d03/tty_8c.html#aab365abb615be7027fa0bdb2c09569cb"> 41</a></span> <span class="keywordtype">int</span> <a class="code" href="../../dc/d03/tty_8c.html#aab365abb615be7027fa0bdb2c09569cb">tty_init</a>() {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">int</span> i = 0x0;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="comment">/* Allocate memory for terminals */</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  terms = (<a class="code" href="../../df/d2f/structtty__termNode.html">tty_term</a> *) <a class="code" href="../../d4/d03/kmalloc_8h.html#a150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<a class="code" href="../../df/d2f/structtty__termNode.html">tty_term</a>) * <a class="code" href="../../dd/d71/tty_8h.html#aaf7550f4ba4072823e4085117944c5ef">TTY_MAX_TERMS</a>);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">if</span> (terms == 0x0)</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="../../dc/d94/armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"tty_init: Failed to allocate memory. File: %s, Line: %i\n"</span>, __FILE__, __LINE__);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">/* Set up all default terminal information */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">for</span> (i = 0; i < <a class="code" href="../../dd/d71/tty_8h.html#aaf7550f4ba4072823e4085117944c5ef">TTY_MAX_TERMS</a>; i++) {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  terms[i].<a class="code" href="../../df/d2f/structtty__termNode.html#ad7d6c2241ad060df43036b02a9a6ac26">tty_buffer</a> = (<span class="keywordtype">char</span> *) <a class="code" href="../../d4/d03/kmalloc_8h.html#a150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(80 * 60 * 2);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (terms[i].tty_buffer == 0x0)</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="../../dc/d94/armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"tty_init: Failed to allocate buffer memory. File: %s, Line: %i\n"</span>, __FILE__, __LINE__);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  terms[i].<a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a> = terms[i].<a class="code" href="../../df/d2f/structtty__termNode.html#ad7d6c2241ad060df43036b02a9a6ac26">tty_buffer</a>; <span class="comment">/* Set up tty pointer to internal buffer */</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  terms[i].<a class="code" href="../../df/d2f/structtty__termNode.html#a22e444939c17fda952c5924c8780aa8b">tty_x</a> = 0x0; <span class="comment">/* Set up default X position */</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  terms[i].<a class="code" href="../../df/d2f/structtty__termNode.html#a9440a0dd6d9f9402e84725a303946bb9">tty_y</a> = 0x0; <span class="comment">/* Set up default Y position */</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  terms[i].<a class="code" href="../../df/d2f/structtty__termNode.html#a06bfeceb1a07aa6c0602745a12be05b0">tty_colour</a> = 0x0A + i; <span class="comment">/* Set up default tty text colour */</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="comment">/* Read tty0 current position (to migrate from kprintf). */</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0e);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  terms[0].<a class="code" href="../../df/d2f/structtty__termNode.html#a9440a0dd6d9f9402e84725a303946bb9">tty_y</a> = <a class="code" href="../../dc/dac/io_8h.html#a77b934268de1b3ecdcf3f275413b3108">inportByte</a>(0x3D5);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0f);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  terms[0].<a class="code" href="../../df/d2f/structtty__termNode.html#a22e444939c17fda952c5924c8780aa8b">tty_x</a> = <a class="code" href="../../dc/dac/io_8h.html#a77b934268de1b3ecdcf3f275413b3108">inportByte</a>(0x3D5);</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="comment">/* Set up pointer for the foreground tty */</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a> = &terms[0];</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">/* Set up the foreground ttys information */</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a> = (<span class="keywordtype">char</span> *) 0xB8000;</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">/* Return to let kernel know initialization is complete */</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="../../da/d28/kprintf_8h.html#a20b56810edb62a6fe59917015c30848f">kprintf</a>(<span class="stringliteral">"tty0 - Initialized\n"</span>);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment"> This will change the specified tty. It ultimately copies the screen</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"> to the foreground buffer copies the new ttys buffer to the screen and</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> adjusts a couple pointers and we are good to go.</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"><a class="line" href="../../dc/d03/tty_8c.html#a52a11053c56546a0dcb568942ada9c72"> 84</a></span> <span class="keywordtype">int</span> <a class="code" href="../../dc/d03/tty_8c.html#a52a11053c56546a0dcb568942ada9c72">tty_change</a>(<a class="code" href="../../dd/d1e/objgfx30_8h.html#a81f3b46fa4ddd984830104840a08da82">uInt16</a> tty) {</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (tty > <a class="code" href="../../dd/d71/tty_8h.html#aaf7550f4ba4072823e4085117944c5ef">TTY_MAX_TERMS</a>)</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="../../dc/d94/armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a>(<span class="stringliteral">"Error: Changing to an invalid tty. File: %s, Line: %i\n"</span>, __FILE__, __LINE__);</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="comment">/* Copy display buffer to tty buffer */</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <a class="code" href="../../da/d66/string_8h.html#ae33b18edb618c656b9b795b9fce2316c">memcpy</a>(<a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="../../df/d2f/structtty__termNode.html#ad7d6c2241ad060df43036b02a9a6ac26">tty_buffer</a>, (<span class="keywordtype">char</span> *) 0xB8000, (80 * 60 * 2));</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">/* Copy new tty buffer to display buffer */</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="../../da/d66/string_8h.html#ae33b18edb618c656b9b795b9fce2316c">memcpy</a>((<span class="keywordtype">char</span> *) 0xB8000, terms[tty].tty_buffer, (80 * 60 * 2));</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>  <span class="comment">/*</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> Set the tty_pointer to the internal buffer so I can continue </span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="comment"> writing to what it believes is the screen</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a> = <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="../../df/d2f/structtty__termNode.html#ad7d6c2241ad060df43036b02a9a6ac26">tty_buffer</a>;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  terms[tty].<a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a> = (<span class="keywordtype">char</span> *) 0xB8000;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">/* set new foreground tty */</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a> = &terms[tty];</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">/* Adjust cursor when we change consoles */</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0F);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="../../df/d2f/structtty__termNode.html#a22e444939c17fda952c5924c8780aa8b">tty_x</a>);</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0E);</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a>-><a class="code" href="../../df/d2f/structtty__termNode.html#a9440a0dd6d9f9402e84725a303946bb9">tty_y</a>);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  </div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  </div>
<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="../../dc/d03/tty_8c.html#ab8811ced5425e47e4c5b0c8f086700ca"> 115</a></span> <span class="keywordtype">int</span> <a class="code" href="../../dc/d03/tty_8c.html#ab8811ced5425e47e4c5b0c8f086700ca">tty_print</a>(<span class="keywordtype">char</span> *<span class="keywordtype">string</span>, <a class="code" href="../../df/d2f/structtty__termNode.html">tty_term</a> *term) {</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> bufferOffset = 0x0, character = 0x0, i = 0x0;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#a71f03d2ba55111c715b6068254847a53">spinLock</a>(&tty_spinLock);</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  </div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">/* We Need To Get The Y Position */</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  bufferOffset = term-><a class="code" href="../../df/d2f/structtty__termNode.html#a9440a0dd6d9f9402e84725a303946bb9">tty_y</a>;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  bufferOffset <<= 8;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">/* Then We Need To Add The X Position */</span></div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  bufferOffset += term-><a class="code" href="../../df/d2f/structtty__termNode.html#a22e444939c17fda952c5924c8780aa8b">tty_x</a>;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  bufferOffset <<= 1;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">while</span> ((character = *<span class="keywordtype">string</span>++)) {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">switch</span> (character) {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">case</span> <span class="charliteral">'\n'</span>:</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  bufferOffset = (bufferOffset / 160) * 160 + 160;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  term-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a>[bufferOffset++] = character;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  term-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a>[bufferOffset++] = term-><a class="code" href="../../df/d2f/structtty__termNode.html#a06bfeceb1a07aa6c0602745a12be05b0">tty_colour</a>;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  } <span class="comment">/* switch */</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="comment">/* Check To See If We Are Out Of Bounds */</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> (bufferOffset >= 160 * 25) {</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">for</span> (i = 0; i < 160 * 24; i++) {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  term-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a>[i] = term-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a>[i + 160];</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">for</span> (i = 0; i < 80; i++) {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  term-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a>[(160 * 24) + (i * 2)] = 0x20;</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  term-><a class="code" href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_pointer</a>[(160 * 24) + (i * 2) + 1] = term-><a class="code" href="../../df/d2f/structtty__termNode.html#a06bfeceb1a07aa6c0602745a12be05b0">tty_colour</a>;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  }</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  bufferOffset -= 160;</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  }</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  bufferOffset >>= 1; <span class="comment">/* Set the new cursor position */</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  term-><a class="code" href="../../df/d2f/structtty__termNode.html#a22e444939c17fda952c5924c8780aa8b">tty_x</a> = (bufferOffset & 0xFF);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  term-><a class="code" href="../../df/d2f/structtty__termNode.html#a9440a0dd6d9f9402e84725a303946bb9">tty_y</a> = (bufferOffset >> 0x8);</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  </div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">if</span> (term == <a class="code" href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a>) {</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0f);</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, term-><a class="code" href="../../df/d2f/structtty__termNode.html#a22e444939c17fda952c5924c8780aa8b">tty_x</a>);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D4, 0x0e);</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(0x3D5, term-><a class="code" href="../../df/d2f/structtty__termNode.html#a9440a0dd6d9f9402e84725a303946bb9">tty_y</a>);</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <a class="code" href="../../dc/d88/armv6_2spinlock_8c.html#ae29ab191c93f9ead066cb462dd2e7247">spinUnlock</a>(&tty_spinLock);</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">return</span> (0x0);</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> }</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  </div>
<div class="line"><a name="l00167"></a><span class="lineno"><a class="line" href="../../dc/d03/tty_8c.html#a360dbff4aa208682a9943640a8696d66"> 167</a></span> <a class="code" href="../../df/d2f/structtty__termNode.html">tty_term</a> *<a class="code" href="../../dc/d03/tty_8c.html#a360dbff4aa208682a9943640a8696d66">tty_find</a>(<a class="code" href="../../dd/d1e/objgfx30_8h.html#a81f3b46fa4ddd984830104840a08da82">uInt16</a> tty) {</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> (&terms[tty]);</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="comment">/***</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"> END</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="comment"> ***/</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<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="atty_8c_html_a360dbff4aa208682a9943640a8696d66"><div class="ttname"><a href="../../dc/d03/tty_8c.html#a360dbff4aa208682a9943640a8696d66">tty_find</a></div><div class="ttdeci">tty_term * tty_find(uInt16 tty)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d03/tty_8c_source.html#l00167">tty.c:167</a></div></div>
<div class="ttc" id="atty_8c_html_a52a11053c56546a0dcb568942ada9c72"><div class="ttname"><a href="../../dc/d03/tty_8c.html#a52a11053c56546a0dcb568942ada9c72">tty_change</a></div><div class="ttdeci">int tty_change(uInt16 tty)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d03/tty_8c_source.html#l00084">tty.c:84</a></div></div>
<div class="ttc" id="astring_8h_html"><div class="ttname"><a href="../../da/d66/string_8h.html">string.h</a></div></div>
<div class="ttc" id="atty_8c_html_aab365abb615be7027fa0bdb2c09569cb"><div class="ttname"><a href="../../dc/d03/tty_8c.html#aab365abb615be7027fa0bdb2c09569cb">tty_init</a></div><div class="ttdeci">int tty_init()</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d03/tty_8c_source.html#l00041">tty.c:41</a></div></div>
<div class="ttc" id="aobjgfx30_8h_html_a81f3b46fa4ddd984830104840a08da82"><div class="ttname"><a href="../../dd/d1e/objgfx30_8h.html#a81f3b46fa4ddd984830104840a08da82">uInt16</a></div><div class="ttdeci">unsigned short int uInt16</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d1e/objgfx30_8h_source.html#l00048">objgfx30.h:48</a></div></div>
<div class="ttc" id="astructtty__termNode_html_ad7d6c2241ad060df43036b02a9a6ac26"><div class="ttname"><a href="../../df/d2f/structtty__termNode.html#ad7d6c2241ad060df43036b02a9a6ac26">tty_termNode::tty_buffer</a></div><div class="ttdeci">char * tty_buffer</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d71/tty_8h_source.html#l00037">tty.h:37</a></div></div>
<div class="ttc" id="astructtty__termNode_html_a22e444939c17fda952c5924c8780aa8b"><div class="ttname"><a href="../../df/d2f/structtty__termNode.html#a22e444939c17fda952c5924c8780aa8b">tty_termNode::tty_x</a></div><div class="ttdeci">uint16_t tty_x</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d71/tty_8h_source.html#l00040">tty.h:40</a></div></div>
<div class="ttc" id="aio_8h_html_a8acc1a06073db2e7b92ffbd00fbd0cf1"><div class="ttname"><a href="../../dc/dac/io_8h.html#a8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a></div><div class="ttdeci">void outportByte(unsigned int, unsigned char)</div><div class="ttdoc">outputut one byte to specified port</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d0a/io_8c_source.html#l00072">io.c:72</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="astructtty__termNode_html_a9440a0dd6d9f9402e84725a303946bb9"><div class="ttname"><a href="../../df/d2f/structtty__termNode.html#a9440a0dd6d9f9402e84725a303946bb9">tty_termNode::tty_y</a></div><div class="ttdeci">uint16_t tty_y</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d71/tty_8h_source.html#l00041">tty.h:41</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="astructtty__termNode_html_ac0868dddca6832ef5f791dd8d2606c7c"><div class="ttname"><a href="../../df/d2f/structtty__termNode.html#ac0868dddca6832ef5f791dd8d2606c7c">tty_termNode::tty_pointer</a></div><div class="ttdeci">char * tty_pointer</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d71/tty_8h_source.html#l00038">tty.h:38</a></div></div>
<div class="ttc" id="aarmv6_2kpanic_8c_html_adb9a182aa071791a306163d50d653deb"><div class="ttname"><a href="../../dc/d94/armv6_2kpanic_8c.html#adb9a182aa071791a306163d50d653deb">kpanic</a></div><div class="ttdeci">void kpanic(const char *fmt,...)</div><div class="ttdoc">print panic message and halt system</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d94/armv6_2kpanic_8c_source.html#l00041">kpanic.c:41</a></div></div>
<div class="ttc" id="astring_8h_html_ae33b18edb618c656b9b795b9fce2316c"><div class="ttname"><a href="../../da/d66/string_8h.html#ae33b18edb618c656b9b795b9fce2316c">memcpy</a></div><div class="ttdeci">void * memcpy(const void *dst, const void *src, size_t length)</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="astructtty__termNode_html"><div class="ttname"><a href="../../df/d2f/structtty__termNode.html">tty_termNode</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d71/tty_8h_source.html#l00036">tty.h:36</a></div></div>
<div class="ttc" id="aio_8h_html_a77b934268de1b3ecdcf3f275413b3108"><div class="ttname"><a href="../../dc/dac/io_8h.html#a77b934268de1b3ecdcf3f275413b3108">inportByte</a></div><div class="ttdeci">unsigned char inportByte(unsigned int)</div><div class="ttdoc">input one byte from specified port</div><div class="ttdef"><b>Definition:</b> <a href="../../df/d0a/io_8c_source.html#l00038">io.c:38</a></div></div>
<div class="ttc" id="akpanic_8h_html"><div class="ttname"><a href="../../d3/d24/kpanic_8h.html">kpanic.h</a></div></div>
<div class="ttc" id="atty_8h_html_aaf7550f4ba4072823e4085117944c5ef"><div class="ttname"><a href="../../dd/d71/tty_8h.html#aaf7550f4ba4072823e4085117944c5ef">TTY_MAX_TERMS</a></div><div class="ttdeci">#define TTY_MAX_TERMS</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d71/tty_8h_source.html#l00034">tty.h:34</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="astructtty__termNode_html_a06bfeceb1a07aa6c0602745a12be05b0"><div class="ttname"><a href="../../df/d2f/structtty__termNode.html#a06bfeceb1a07aa6c0602745a12be05b0">tty_termNode::tty_colour</a></div><div class="ttdeci">uint8_t tty_colour</div><div class="ttdef"><b>Definition:</b> <a href="../../dd/d71/tty_8h_source.html#l00039">tty.h:39</a></div></div>
<div class="ttc" id="atty_8h_html"><div class="ttname"><a href="../../dd/d71/tty_8h.html">tty.h</a></div></div>
<div class="ttc" id="atty_8c_html_ab8811ced5425e47e4c5b0c8f086700ca"><div class="ttname"><a href="../../dc/d03/tty_8c.html#ab8811ced5425e47e4c5b0c8f086700ca">tty_print</a></div><div class="ttdeci">int tty_print(char *string, tty_term *term)</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d03/tty_8c_source.html#l00115">tty.c:115</a></div></div>
<div class="ttc" id="atty_8c_html_aafbb5679104334c34d7691b2de7d7a86"><div class="ttname"><a href="../../dc/d03/tty_8c.html#aafbb5679104334c34d7691b2de7d7a86">tty_foreground</a></div><div class="ttdeci">tty_term * tty_foreground</div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d03/tty_8c_source.html#l00038">tty.c:38</a></div></div>
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