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<div id="projectname">libaaruformat<span id="projectnumber"> 1.0</span>
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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<div class="headertitle"><div class="title">ecc_cd.c</div></div>
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<div class="contents">
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<a href="ecc__cd_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * This file is part of the Aaru Data Preservation Suite.</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Copyright (c) 2019-2025 Natalia Portillo.</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * ECC algorithm from ECM(c) 2002-2011 Neill Corlett</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * This library is free software; you can redistribute it and/or modify</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * it under the terms of the GNU Lesser General Public License as</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * published by the Free Software Foundation; either version 2.1 of the</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * License, or (at your option) any later version.</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * This library is distributed in the hope that it will be useful, but</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * Lesser General Public License for more details.</span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> *</span></div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * License along with this library; if not, see <http://www.gnu.org/licenses/>.</span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#include <stdbool.h></span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#include <stdint.h></span></div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#include <stdlib.h></span></div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include <string.h></span></div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include "<a class="code" href="aaruformat_8h.html">aaruformat.h</a>"</span></div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "<a class="code" href="log_8h.html">log.h</a>"</span></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span></div>
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<div class="foldopen" id="foldopen00035" data-start="{" data-end="}">
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="decls_8h.html#ac1a30bb251ac148f485c51593c0740c1"> 35</a></span><span class="keywordtype">void</span> *<a class="code hl_function" href="ecc__cd_8c.html#ac1a30bb251ac148f485c51593c0740c1">aaruf_ecc_cd_init</a>()</div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>{</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_init()"</span>);</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *context = NULL;</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> uint32_t edc = 0, i = 0, j = 0;</div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Creating context"</span>);</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> context = (<a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *)malloc(<span class="keyword">sizeof</span>(<a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a>));</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">if</span>(context == NULL) <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Allocating memory for ECC F table"</span>);</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> context-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a> = (uint8_t *)malloc(<span class="keyword">sizeof</span>(uint8_t) * 256);</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> </div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordflow">if</span>(context-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a> == NULL)</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> {</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> free(context);</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> }</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Allocating memory for ECC B table"</span>);</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> context-><a class="code hl_variable" href="structCdEccContext.html#af969156c568c760439fc67632353aa4d">ecc_b_table</a> = (uint8_t *)malloc(<span class="keyword">sizeof</span>(uint8_t) * 256);</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">if</span>(context-><a class="code hl_variable" href="structCdEccContext.html#af969156c568c760439fc67632353aa4d">ecc_b_table</a> == NULL)</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> {</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> free(context-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a>);</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> free(context);</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> }</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Allocating memory for EDC table"</span>);</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> context-><a class="code hl_variable" href="structCdEccContext.html#ad4146692ba163b5ab6c9f56320cef4aa">edc_table</a> = (uint32_t *)malloc(<span class="keyword">sizeof</span>(uint32_t) * 256);</div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordflow">if</span>(context-><a class="code hl_variable" href="structCdEccContext.html#ad4146692ba163b5ab6c9f56320cef4aa">edc_table</a> == NULL)</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> {</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> free(context-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a>);</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> free(context-><a class="code hl_variable" href="structCdEccContext.html#af969156c568c760439fc67632353aa4d">ecc_b_table</a>);</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> free(context);</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">return</span> NULL;</div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> }</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> </div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Initializing EDC tables"</span>);</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">for</span>(i = 0; i < 256; i++)</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> {</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> edc = i;</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> j = i << 1 ^ ((i & 0x80) == 0x80 ? 0x11D : 0);</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> context-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a>[i] = (uint8_t)j;</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> context-><a class="code hl_variable" href="structCdEccContext.html#af969156c568c760439fc67632353aa4d">ecc_b_table</a>[i ^ j] = (uint8_t)i;</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">for</span>(j = 0; j < 8; j++) edc = edc >> 1 ^ ((edc & 1) > 0 ? 0xD8018001 : 0);</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> context-><a class="code hl_variable" href="structCdEccContext.html#ad4146692ba163b5ab6c9f56320cef4aa">edc_table</a>[i] = edc;</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> }</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> </div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> context-><a class="code hl_variable" href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">inited_edc</a> = <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_init()"</span>);</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">return</span> context;</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span>}</div>
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</div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span></div>
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<div class="foldopen" id="foldopen00101" data-start="{" data-end="}">
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"><a class="line" href="decls_8h.html#afbc09e16b1a654de04706e07c3212ecb"> 101</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="ecc__cd_8c.html#afbc09e16b1a654de04706e07c3212ecb">aaruf_ecc_cd_is_suffix_correct</a>(<span class="keywordtype">void</span> *context, <span class="keyword">const</span> uint8_t *sector)</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span>{</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_is_suffix_correct(%p, %p)"</span>, context, sector);</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> uint32_t edc;</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordtype">int</span> size, pos;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="keywordflow">if</span>(context == NULL || sector == NULL)</div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> {</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct() without initialized context"</span>);</div>
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|
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">const</span> <a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *ctx = context;</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">if</span>(!ctx-><a class="code hl_variable" href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">inited_edc</a>)</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> {</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct() without initialized context"</span>);</div>
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|
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> }</div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
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|
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">if</span>(sector[0x814] != 0x00 ||</div>
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|
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> <span class="comment">// reserved (8 bytes)</span></div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> sector[0x815] != 0x00 || sector[0x816] != 0x00 || sector[0x817] != 0x00 || sector[0x818] != 0x00 ||</div>
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|
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> sector[0x819] != 0x00 || sector[0x81A] != 0x00 || sector[0x81B] != 0x00)</div>
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|
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> {</div>
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|
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct() = false"</span>);</div>
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|
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> }</div>
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|
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
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|
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> correct_ecc_p = <a class="code hl_function" href="ecc__cd_8c.html#a1cd08adea9a778c2463b90ab9295dc3f">aaruf_ecc_cd_check</a>(context, sector, sector, 86, 24, 2, 86, sector, 0xC, 0x10, 0x81C);</div>
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|
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordflow">if</span>(!correct_ecc_p)</div>
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|
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> {</div>
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|
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct() = false"</span>);</div>
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|
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> }</div>
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|
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
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|
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> correct_ecc_q =</div>
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|
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <a class="code hl_function" href="ecc__cd_8c.html#a1cd08adea9a778c2463b90ab9295dc3f">aaruf_ecc_cd_check</a>(context, sector, sector, 52, 43, 86, 88, sector, 0xC, 0x10, 0x81C + 0xAC);</div>
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|
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">if</span>(!correct_ecc_q)</div>
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|
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> {</div>
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|
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct() = false"</span>);</div>
|
|
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> }</div>
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|
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> </div>
|
|
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> uint32_t stored_edc;</div>
|
|
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> memcpy(&stored_edc, sector + 0x810, 4);</div>
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|
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> uint32_t calculated_edc = <a class="code hl_function" href="ecc__cd_8c.html#a67c65c3f2ca5cdf1596c16fa35558df1">aaruf_edc_cd_compute</a>(context, 0, sector, 0x810, 0);</div>
|
|
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> </div>
|
|
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">if</span>(stored_edc != calculated_edc)</div>
|
|
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> {</div>
|
|
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct() = false"</span>);</div>
|
|
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> }</div>
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|
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> </div>
|
|
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct() = %u == %u"</span>, calculated_edc, stored_edc);</div>
|
|
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">return</span> calculated_edc == stored_edc;</div>
|
|
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span>}</div>
|
|
</div>
|
|
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span></div>
|
|
<div class="foldopen" id="foldopen00165" data-start="{" data-end="}">
|
|
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"><a class="line" href="decls_8h.html#ab77ca170a2e8d2f0a2a7ea1a8a51690a"> 165</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="ecc__cd_8c.html#ab77ca170a2e8d2f0a2a7ea1a8a51690a">aaruf_ecc_cd_is_suffix_correct_mode2</a>(<span class="keywordtype">void</span> *context, <span class="keyword">const</span> uint8_t *sector)</div>
|
|
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span>{</div>
|
|
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_is_suffix_correct_mode2(%p, %p)"</span>, context, sector);</div>
|
|
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> uint32_t edc;</div>
|
|
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordtype">int</span> size, pos;</div>
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|
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> uint8_t zeroaddress[4] = {0};</div>
|
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> </div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordflow">if</span>(context == NULL || sector == NULL)</div>
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|
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> {</div>
|
|
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct_mode2() without initialized context"</span>);</div>
|
|
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> }</div>
|
|
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> </div>
|
|
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *ctx = context;</div>
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|
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> </div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">if</span>(!ctx-><a class="code hl_variable" href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">inited_edc</a>)</div>
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|
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> {</div>
|
|
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct_mode2() without initialized context"</span>);</div>
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|
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> }</div>
|
|
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> </div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keyword">const</span> <span class="keywordtype">int</span> form2 = sector[0x12] & 0x20;</div>
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|
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> </div>
|
|
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> correct_ecc_p = <a class="code hl_function" href="ecc__cd_8c.html#a1cd08adea9a778c2463b90ab9295dc3f">aaruf_ecc_cd_check</a>(context, zeroaddress, sector, 86, 24, 2, 86, sector, 0, 0x10, 0x81C);</div>
|
|
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">if</span>(!correct_ecc_p)</div>
|
|
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> {</div>
|
|
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct_mode2() = false"</span>);</div>
|
|
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> }</div>
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|
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> </div>
|
|
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> correct_ecc_q =</div>
|
|
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <a class="code hl_function" href="ecc__cd_8c.html#a1cd08adea9a778c2463b90ab9295dc3f">aaruf_ecc_cd_check</a>(context, zeroaddress, sector, 52, 43, 86, 88, sector, 0, 0x10, 0x81C + 0xAC);</div>
|
|
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keywordflow">if</span>(!correct_ecc_q)</div>
|
|
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> {</div>
|
|
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct_mode2() = false"</span>);</div>
|
|
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> }</div>
|
|
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
|
|
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> uint32_t stored_edc;</div>
|
|
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> memcpy(&stored_edc, form2 ? sector + 0x92C : sector + 0x818, 4);</div>
|
|
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keyword">const</span> uint32_t calculated_edc = <a class="code hl_function" href="ecc__cd_8c.html#a67c65c3f2ca5cdf1596c16fa35558df1">aaruf_edc_cd_compute</a>(context, 0, sector, form2 ? 0x91C : 0x808, 0x10);</div>
|
|
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div>
|
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_is_suffix_correct_mode2() = %u == %u"</span>, calculated_edc, stored_edc);</div>
|
|
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="keywordflow">return</span> calculated_edc == stored_edc;</div>
|
|
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span>}</div>
|
|
</div>
|
|
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span></div>
|
|
<div class="foldopen" id="foldopen00227" data-start="{" data-end="}">
|
|
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"><a class="line" href="decls_8h.html#a562bb88bbf499eac272182acb5528dea"> 227</a></span><span class="keywordtype">bool</span> <a class="code hl_function" href="ecc__cd_8c.html#a1cd08adea9a778c2463b90ab9295dc3f">aaruf_ecc_cd_check</a>(<span class="keywordtype">void</span> *context, <span class="keyword">const</span> uint8_t *address, <span class="keyword">const</span> uint8_t *data, <span class="keyword">const</span> uint32_t major_count,</div>
|
|
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keyword">const</span> uint32_t minor_count, <span class="keyword">const</span> uint32_t major_mult, <span class="keyword">const</span> uint32_t minor_inc,</div>
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|
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keyword">const</span> uint8_t *ecc, <span class="keyword">const</span> int32_t address_offset, <span class="keyword">const</span> int32_t data_offset,</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="keyword">const</span> int32_t ecc_offset)</div>
|
|
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span>{</div>
|
|
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_check(%p, %p, %p, %u, %u, %u, %u, %p, %d, %d, %d)"</span>, context, address, data,</div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> major_count, minor_count, major_mult, minor_inc, ecc, address_offset, data_offset, ecc_offset);</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">if</span>(context == NULL || address == NULL || data == NULL || ecc == NULL)</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> {</div>
|
|
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_check() with missing data"</span>);</div>
|
|
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
|
|
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> }</div>
|
|
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> </div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *ctx = context;</div>
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|
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
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|
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="keywordflow">if</span>(!ctx-><a class="code hl_variable" href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">inited_edc</a>)</div>
|
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> {</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_check() without initialized context"</span>);</div>
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|
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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|
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> }</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> </div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> uint32_t size = major_count * minor_count;</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">for</span>(uint32_t major = 0; major < major_count; major++)</div>
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|
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> {</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> uint32_t idx = (major >> 1) * major_mult + (major & 1);</div>
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|
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> uint8_t ecc_a = 0;</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> uint8_t ecc_b = 0;</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> <span class="keywordflow">for</span>(uint32_t minor = 0; minor < minor_count; minor++)</div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> {</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> uint8_t temp = idx < 4 ? address[idx + address_offset] : data[idx + data_offset - 4];</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> idx += minor_inc;</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keywordflow">if</span>(idx >= size) idx -= size;</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> ecc_a ^= temp;</div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> ecc_b ^= temp;</div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> ecc_a = ctx-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a>[ecc_a];</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> }</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> </div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> ecc_a = ctx-><a class="code hl_variable" href="structCdEccContext.html#af969156c568c760439fc67632353aa4d">ecc_b_table</a>[ctx-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a>[ecc_a] ^ ecc_b];</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="keywordflow">if</span>(ecc[major + ecc_offset] != ecc_a || ecc[major + major_count + ecc_offset] != (ecc_a ^ ecc_b))</div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> {</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_check() = false, ECC mismatch at major %u"</span>, major);</div>
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|
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> }</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> }</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> </div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_check() = true, ECC matches"</span>);</div>
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|
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span>}</div>
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</div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span></div>
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<div class="foldopen" id="foldopen00292" data-start="{" data-end="}">
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"><a class="line" href="decls_8h.html#a892f09f0b28f1183064eef6eb4d46f42"> 292</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="ecc__cd_8c.html#a330d4bda939de120a160592c0bdb703d">aaruf_ecc_cd_write</a>(<span class="keywordtype">void</span> *context, <span class="keyword">const</span> uint8_t *address, <span class="keyword">const</span> uint8_t *data, <span class="keyword">const</span> uint32_t major_count,</div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="keyword">const</span> uint32_t minor_count, <span class="keyword">const</span> uint32_t major_mult, <span class="keyword">const</span> uint32_t minor_inc, uint8_t *ecc,</div>
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<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="keyword">const</span> int32_t address_offset, <span class="keyword">const</span> int32_t data_offset, <span class="keyword">const</span> int32_t ecc_offset)</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span>{</div>
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<div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_write(%p, %p, %p, %u, %u, %u, %u, %p, %d, %d, %d)"</span>, context, address, data,</div>
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<div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> major_count, minor_count, major_mult, minor_inc, ecc, address_offset, data_offset, ecc_offset);</div>
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<div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> </div>
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> <span class="keywordflow">if</span>(context == NULL || address == NULL || data == NULL || ecc == NULL)</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> {</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_write() with missing data"</span>);</div>
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|
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> }</div>
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<div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> </div>
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<div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> <a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *ctx = context;</div>
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<div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span> </div>
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<div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> <span class="keywordflow">if</span>(!ctx-><a class="code hl_variable" href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">inited_edc</a>)</div>
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|
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span> {</div>
|
|
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_write() without initialized context"</span>);</div>
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|
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="keywordflow">return</span>;</div>
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|
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> }</div>
|
|
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> </div>
|
|
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> uint32_t size = major_count * minor_count;</div>
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|
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="keywordflow">for</span>(uint32_t major = 0; major < major_count; major++)</div>
|
|
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> {</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> uint32_t idx = (major >> 1) * major_mult + (major & 1);</div>
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|
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> uint8_t ecc_a = 0;</div>
|
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<div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> uint8_t ecc_b = 0;</div>
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<div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> </div>
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<div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="keywordflow">for</span>(uint32_t minor = 0; minor < minor_count; minor++)</div>
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|
<div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> {</div>
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<div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> uint8_t temp = idx < 4 ? address[idx + address_offset] : data[idx + data_offset - 4];</div>
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|
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> idx += minor_inc;</div>
|
|
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> <span class="keywordflow">if</span>(idx >= size) idx -= size;</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> ecc_a ^= temp;</div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> ecc_b ^= temp;</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> ecc_a = ctx-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a>[ecc_a];</div>
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|
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> }</div>
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<div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> </div>
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<div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> ecc_a = ctx-><a class="code hl_variable" href="structCdEccContext.html#af969156c568c760439fc67632353aa4d">ecc_b_table</a>[ctx-><a class="code hl_variable" href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">ecc_f_table</a>[ecc_a] ^ ecc_b];</div>
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|
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> ecc[major + ecc_offset] = ecc_a;</div>
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|
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> ecc[major + major_count + ecc_offset] = ecc_a ^ ecc_b;</div>
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<div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> }</div>
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<div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> </div>
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<div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_write()"</span>);</div>
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|
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span>}</div>
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</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span></div>
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<div class="foldopen" id="foldopen00349" data-start="{" data-end="}">
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"><a class="line" href="decls_8h.html#a322819729519cc5e0fcd625510158e18"> 349</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="ecc__cd_8c.html#ab541a4ae9c6568d4dad8df5101ebad58">aaruf_ecc_cd_write_sector</a>(<span class="keywordtype">void</span> *context, <span class="keyword">const</span> uint8_t *address, <span class="keyword">const</span> uint8_t *data, uint8_t *ecc,</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> <span class="keyword">const</span> int32_t address_offset, <span class="keyword">const</span> int32_t data_offset, <span class="keyword">const</span> int32_t ecc_offset)</div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span>{</div>
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<div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_write_sector(%p, %p, %p, %p, %d, %d, %d)"</span>, context, address, data, ecc, address_offset,</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> data_offset, ecc_offset);</div>
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<div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> </div>
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<div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> <a class="code hl_function" href="ecc__cd_8c.html#a330d4bda939de120a160592c0bdb703d">aaruf_ecc_cd_write</a>(context, address, data, 86, 24, 2, 86, ecc, address_offset, data_offset, ecc_offset); <span class="comment">// P</span></div>
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<div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> <a class="code hl_function" href="ecc__cd_8c.html#a330d4bda939de120a160592c0bdb703d">aaruf_ecc_cd_write</a>(context, address, data, 52, 43, 86, 88, ecc, address_offset, data_offset,</div>
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<div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> ecc_offset + 0xAC); <span class="comment">// Q</span></div>
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<div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> </div>
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<div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_write_sector()"</span>);</div>
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<div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span>}</div>
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</div>
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<div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span></div>
|
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<div class="foldopen" id="foldopen00370" data-start="{" data-end="}">
|
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<div class="line"><a id="l00370" name="l00370"></a><span class="lineno"><a class="line" href="decls_8h.html#a033bfc0dd219563f45b7e5c85dd5d3fa"> 370</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="ecc__cd_8c.html#a4e5ee3f9330f970b761de5566458ac3b">aaruf_cd_lba_to_msf</a>(<span class="keyword">const</span> int64_t pos, uint8_t *minute, uint8_t *second, uint8_t *frame)</div>
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<div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span>{</div>
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<div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_cd_lba_to_msf(%lld, %p, %p, %p)"</span>, pos, minute, second, frame);</div>
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<div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> </div>
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<div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> *minute = (uint8_t)((pos + 150) / 75 / 60);</div>
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<div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> *second = (uint8_t)((pos + 150) / 75 % 60);</div>
|
|
<div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> *frame = (uint8_t)((pos + 150) % 75);</div>
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> </div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_cd_lba_to_msf() = %u:%u:%u"</span>, *minute, *second, *frame);</div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span>}</div>
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</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span></div>
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<div class="foldopen" id="foldopen00388" data-start="{" data-end="}">
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<div class="line"><a id="l00388" name="l00388"></a><span class="lineno"><a class="line" href="decls_8h.html#a73c3788f7376196abd596d6d846466b1"> 388</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="ecc__cd_8c.html#a9dc3231aea6933691f5881914e8da1f6">aaruf_ecc_cd_reconstruct_prefix</a>(uint8_t *sector, <span class="keyword">const</span> uint8_t type, <span class="keyword">const</span> int64_t lba)</div>
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<div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span>{</div>
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<div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_reconstruct_prefix(%p, %u, %lld)"</span>, sector, type, lba);</div>
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<div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> </div>
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> uint8_t minute, second, frame;</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> </div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> <span class="keywordflow">if</span>(sector == NULL) <span class="keywordflow">return</span>;</div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> </div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span> <span class="comment">// Sync</span></div>
|
|
<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> sector[0x000] = 0x00;</div>
|
|
<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> sector[0x001] = 0xFF;</div>
|
|
<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> sector[0x002] = 0xFF;</div>
|
|
<div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> sector[0x003] = 0xFF;</div>
|
|
<div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> sector[0x004] = 0xFF;</div>
|
|
<div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> sector[0x005] = 0xFF;</div>
|
|
<div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> sector[0x006] = 0xFF;</div>
|
|
<div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> sector[0x007] = 0xFF;</div>
|
|
<div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> sector[0x008] = 0xFF;</div>
|
|
<div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> sector[0x009] = 0xFF;</div>
|
|
<div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> sector[0x00A] = 0xFF;</div>
|
|
<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> sector[0x00B] = 0x00;</div>
|
|
<div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> </div>
|
|
<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> <a class="code hl_function" href="ecc__cd_8c.html#a4e5ee3f9330f970b761de5566458ac3b">aaruf_cd_lba_to_msf</a>(lba, &minute, &second, &frame);</div>
|
|
<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> </div>
|
|
<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> sector[0x00C] = (uint8_t)(((minute / 10) << 4) + minute % 10);</div>
|
|
<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> sector[0x00D] = (uint8_t)(((second / 10) << 4) + second % 10);</div>
|
|
<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> sector[0x00E] = (uint8_t)(((frame / 10) << 4) + frame % 10);</div>
|
|
<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> </div>
|
|
<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> <span class="keywordflow">switch</span>((<a class="code hl_enumeration" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04">TrackType</a>)type)</div>
|
|
<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> {</div>
|
|
<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04aa2aea1fa4875ff43b28267ad736cec62">CdMode1</a>:</div>
|
|
<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> <span class="comment">// Mode</span></div>
|
|
<div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> sector[0x00F] = 0x01;</div>
|
|
<div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04af90c2d371aa1e99d911ec2173587186c">CdMode2Form1</a>:</div>
|
|
<div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04ab68a4bd72f7e85f28dcb9c5a5441743a">CdMode2Form2</a>:</div>
|
|
<div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04aff99910681f4abb6ac45b08562b2797e">CdMode2Formless</a>:</div>
|
|
<div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> <span class="comment">// Mode</span></div>
|
|
<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> sector[0x00F] = 0x02;</div>
|
|
<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> <span class="comment">// Flags</span></div>
|
|
<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> sector[0x010] = sector[0x014];</div>
|
|
<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> sector[0x011] = sector[0x015];</div>
|
|
<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> sector[0x012] = sector[0x016];</div>
|
|
<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> sector[0x013] = sector[0x017];</div>
|
|
<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> }</div>
|
|
<div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> </div>
|
|
<div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_reconstruct_prefix()"</span>);</div>
|
|
<div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span>}</div>
|
|
</div>
|
|
<div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span></div>
|
|
<div class="foldopen" id="foldopen00455" data-start="{" data-end="}">
|
|
<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"><a class="line" href="decls_8h.html#a9c9e2440119b8d7e67cb2c40125bf295"> 455</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="ecc__cd_8c.html#a5bf5a19fd4ec540968f0b4c3d641e973">aaruf_ecc_cd_reconstruct</a>(<span class="keywordtype">void</span> *context, uint8_t *sector, <span class="keyword">const</span> uint8_t type)</div>
|
|
<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span>{</div>
|
|
<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_ecc_cd_reconstruct(%p, %p, %u)"</span>, context, sector, type);</div>
|
|
<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> </div>
|
|
<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span> uint32_t computed_edc;</div>
|
|
<div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> uint8_t zeroaddress[4];</div>
|
|
<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> </div>
|
|
<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> <span class="keywordflow">if</span>(context == NULL || sector == NULL)</div>
|
|
<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> {</div>
|
|
<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_reconstruct() with missing data"</span>);</div>
|
|
<div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> }</div>
|
|
<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> </div>
|
|
<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> <a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *ctx = context;</div>
|
|
<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> </div>
|
|
<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> <span class="keywordflow">if</span>(!ctx-><a class="code hl_variable" href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">inited_edc</a>)</div>
|
|
<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> {</div>
|
|
<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_reconstruct() without initialized context"</span>);</div>
|
|
<div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> }</div>
|
|
<div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> </div>
|
|
<div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> <span class="keywordflow">switch</span>(type)</div>
|
|
<div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> {</div>
|
|
<div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> <span class="comment">// Compute EDC</span></div>
|
|
<div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04aa2aea1fa4875ff43b28267ad736cec62">CdMode1</a>:</div>
|
|
<div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> computed_edc = <a class="code hl_function" href="ecc__cd_8c.html#a67c65c3f2ca5cdf1596c16fa35558df1">aaruf_edc_cd_compute</a>(context, 0, sector, 0x810, 0);</div>
|
|
<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> memcpy(sector + 0x810, &computed_edc, 4);</div>
|
|
<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04af90c2d371aa1e99d911ec2173587186c">CdMode2Form1</a>:</div>
|
|
<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> computed_edc = <a class="code hl_function" href="ecc__cd_8c.html#a67c65c3f2ca5cdf1596c16fa35558df1">aaruf_edc_cd_compute</a>(context, 0, sector, 0x808, 0x10);</div>
|
|
<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> memcpy(sector + 0x818, &computed_edc, 4);</div>
|
|
<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04ab68a4bd72f7e85f28dcb9c5a5441743a">CdMode2Form2</a>:</div>
|
|
<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> computed_edc = <a class="code hl_function" href="ecc__cd_8c.html#a67c65c3f2ca5cdf1596c16fa35558df1">aaruf_edc_cd_compute</a>(context, 0, sector, 0x91C, 0x10);</div>
|
|
<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> memcpy(sector + 0x92C, &computed_edc, 4);</div>
|
|
<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_reconstruct() with unknown type %u"</span>, type);</div>
|
|
<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> }</div>
|
|
<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> </div>
|
|
<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> memset(&zeroaddress, 0, 4);</div>
|
|
<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> </div>
|
|
<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> <span class="keywordflow">switch</span>(type)</div>
|
|
<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> {</div>
|
|
<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> <span class="comment">// Compute ECC</span></div>
|
|
<div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04aa2aea1fa4875ff43b28267ad736cec62">CdMode1</a>:</div>
|
|
<div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> <span class="comment">// Reserved</span></div>
|
|
<div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> sector[0x814] = 0x00;</div>
|
|
<div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> sector[0x815] = 0x00;</div>
|
|
<div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> sector[0x816] = 0x00;</div>
|
|
<div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> sector[0x817] = 0x00;</div>
|
|
<div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> sector[0x818] = 0x00;</div>
|
|
<div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> sector[0x819] = 0x00;</div>
|
|
<div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> sector[0x81A] = 0x00;</div>
|
|
<div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> sector[0x81B] = 0x00;</div>
|
|
<div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <a class="code hl_function" href="ecc__cd_8c.html#ab541a4ae9c6568d4dad8df5101ebad58">aaruf_ecc_cd_write_sector</a>(context, sector, sector, sector, 0xC, 0x10, 0x81C);</div>
|
|
<div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> <span class="keywordflow">case</span> <a class="code hl_enumvalue" href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04af90c2d371aa1e99d911ec2173587186c">CdMode2Form1</a>:</div>
|
|
<div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> <a class="code hl_function" href="ecc__cd_8c.html#ab541a4ae9c6568d4dad8df5101ebad58">aaruf_ecc_cd_write_sector</a>(context, zeroaddress, sector, sector, 0, 0x10, 0x81C);</div>
|
|
<div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <span class="keywordflow">break</span>;</div>
|
|
<div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> <span class="keywordflow">default</span>:</div>
|
|
<div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_reconstruct() with unknown type %u"</span>, type);</div>
|
|
<div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> <span class="keywordflow">return</span>;</div>
|
|
<div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> }</div>
|
|
<div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> </div>
|
|
<div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> <span class="comment">//</span></div>
|
|
<div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> <span class="comment">// Done</span></div>
|
|
<div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> <span class="comment">//</span></div>
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<div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_ecc_cd_reconstruct()"</span>);</div>
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<div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span>}</div>
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</div>
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<div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span></div>
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<div class="foldopen" id="foldopen00543" data-start="{" data-end="}">
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<div class="line"><a id="l00543" name="l00543"></a><span class="lineno"><a class="line" href="decls_8h.html#a67c65c3f2ca5cdf1596c16fa35558df1"> 543</a></span>uint32_t <a class="code hl_function" href="ecc__cd_8c.html#a67c65c3f2ca5cdf1596c16fa35558df1">aaruf_edc_cd_compute</a>(<span class="keywordtype">void</span> *context, uint32_t edc, <span class="keyword">const</span> uint8_t *src, <span class="keywordtype">int</span> size, <span class="keywordtype">int</span> pos)</div>
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<div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span>{</div>
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<div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Entering aaruf_edc_cd_compute(%p, %u, %p, %d, %d)"</span>, context, edc, src, size, pos);</div>
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<div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> </div>
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<div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> <span class="keywordflow">if</span>(context == NULL || src == NULL)</div>
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<div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> {</div>
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<div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_edc_cd_compute() with missing data"</span>);</div>
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<div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> }</div>
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<div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> </div>
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<div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <a class="code hl_struct" href="structCdEccContext.html">CdEccContext</a> *ctx = context;</div>
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<div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> </div>
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<div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> <span class="keywordflow">if</span>(!ctx-><a class="code hl_variable" href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">inited_edc</a>)</div>
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<div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> {</div>
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<div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_edc_cd_compute() without initialized context"</span>);</div>
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<div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <span class="keywordflow">return</span> 0;</div>
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<div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> }</div>
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<div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> </div>
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<div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> <span class="keywordflow">for</span>(; size > 0; size--) edc = edc >> 8 ^ ctx-><a class="code hl_variable" href="structCdEccContext.html#ad4146692ba163b5ab6c9f56320cef4aa">edc_table</a>[(edc ^ src[pos++]) & 0xFF];</div>
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<div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> </div>
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<div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> <a class="code hl_define" href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a>(<span class="stringliteral">"Exiting aaruf_edc_cd_compute() = 0x%08X"</span>, edc);</div>
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<div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> <span class="keywordflow">return</span> edc;</div>
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<div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span>}</div>
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</div>
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<div class="ttc" id="aaaruformat_8h_html"><div class="ttname"><a href="aaruformat_8h.html">aaruformat.h</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_a1cd08adea9a778c2463b90ab9295dc3f"><div class="ttname"><a href="ecc__cd_8c.html#a1cd08adea9a778c2463b90ab9295dc3f">aaruf_ecc_cd_check</a></div><div class="ttdeci">bool aaruf_ecc_cd_check(void *context, const uint8_t *address, const uint8_t *data, const uint32_t major_count, const uint32_t minor_count, const uint32_t major_mult, const uint32_t minor_inc, const uint8_t *ecc, const int32_t address_offset, const int32_t data_offset, const int32_t ecc_offset)</div><div class="ttdoc">Checks the ECC of a CD sector.</div><div class="ttdef"><b>Definition</b> <a href="#l00227">ecc_cd.c:227</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_a330d4bda939de120a160592c0bdb703d"><div class="ttname"><a href="ecc__cd_8c.html#a330d4bda939de120a160592c0bdb703d">aaruf_ecc_cd_write</a></div><div class="ttdeci">void aaruf_ecc_cd_write(void *context, const uint8_t *address, const uint8_t *data, const uint32_t major_count, const uint32_t minor_count, const uint32_t major_mult, const uint32_t minor_inc, uint8_t *ecc, const int32_t address_offset, const int32_t data_offset, const int32_t ecc_offset)</div><div class="ttdoc">Writes ECC for a CD sector.</div><div class="ttdef"><b>Definition</b> <a href="#l00292">ecc_cd.c:292</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_a4e5ee3f9330f970b761de5566458ac3b"><div class="ttname"><a href="ecc__cd_8c.html#a4e5ee3f9330f970b761de5566458ac3b">aaruf_cd_lba_to_msf</a></div><div class="ttdeci">void aaruf_cd_lba_to_msf(const int64_t pos, uint8_t *minute, uint8_t *second, uint8_t *frame)</div><div class="ttdoc">Converts a CD LBA (Logical Block Address) to MSF (Minute:Second:Frame) format.</div><div class="ttdef"><b>Definition</b> <a href="#l00370">ecc_cd.c:370</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_a5bf5a19fd4ec540968f0b4c3d641e973"><div class="ttname"><a href="ecc__cd_8c.html#a5bf5a19fd4ec540968f0b4c3d641e973">aaruf_ecc_cd_reconstruct</a></div><div class="ttdeci">void aaruf_ecc_cd_reconstruct(void *context, uint8_t *sector, const uint8_t type)</div><div class="ttdoc">Reconstructs the EDC and ECC fields of a CD sector.</div><div class="ttdef"><b>Definition</b> <a href="#l00455">ecc_cd.c:455</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_a67c65c3f2ca5cdf1596c16fa35558df1"><div class="ttname"><a href="ecc__cd_8c.html#a67c65c3f2ca5cdf1596c16fa35558df1">aaruf_edc_cd_compute</a></div><div class="ttdeci">uint32_t aaruf_edc_cd_compute(void *context, uint32_t edc, const uint8_t *src, int size, int pos)</div><div class="ttdoc">Computes the EDC (Error Detection Code) for a CD sector.</div><div class="ttdef"><b>Definition</b> <a href="#l00543">ecc_cd.c:543</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_a9dc3231aea6933691f5881914e8da1f6"><div class="ttname"><a href="ecc__cd_8c.html#a9dc3231aea6933691f5881914e8da1f6">aaruf_ecc_cd_reconstruct_prefix</a></div><div class="ttdeci">void aaruf_ecc_cd_reconstruct_prefix(uint8_t *sector, const uint8_t type, const int64_t lba)</div><div class="ttdoc">Reconstructs the prefix (sync, address, mode) of a CD sector.</div><div class="ttdef"><b>Definition</b> <a href="#l00388">ecc_cd.c:388</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_ab541a4ae9c6568d4dad8df5101ebad58"><div class="ttname"><a href="ecc__cd_8c.html#ab541a4ae9c6568d4dad8df5101ebad58">aaruf_ecc_cd_write_sector</a></div><div class="ttdeci">void aaruf_ecc_cd_write_sector(void *context, const uint8_t *address, const uint8_t *data, uint8_t *ecc, const int32_t address_offset, const int32_t data_offset, const int32_t ecc_offset)</div><div class="ttdoc">Writes ECC for a full CD sector (both P and Q ECC).</div><div class="ttdef"><b>Definition</b> <a href="#l00349">ecc_cd.c:349</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_ab77ca170a2e8d2f0a2a7ea1a8a51690a"><div class="ttname"><a href="ecc__cd_8c.html#ab77ca170a2e8d2f0a2a7ea1a8a51690a">aaruf_ecc_cd_is_suffix_correct_mode2</a></div><div class="ttdeci">bool aaruf_ecc_cd_is_suffix_correct_mode2(void *context, const uint8_t *sector)</div><div class="ttdoc">Checks if the suffix (EDC/ECC) of a CD sector is correct (Mode 2).</div><div class="ttdef"><b>Definition</b> <a href="#l00165">ecc_cd.c:165</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_ac1a30bb251ac148f485c51593c0740c1"><div class="ttname"><a href="ecc__cd_8c.html#ac1a30bb251ac148f485c51593c0740c1">aaruf_ecc_cd_init</a></div><div class="ttdeci">void * aaruf_ecc_cd_init()</div><div class="ttdoc">Initializes a Compact Disc ECC context.</div><div class="ttdef"><b>Definition</b> <a href="#l00035">ecc_cd.c:35</a></div></div>
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<div class="ttc" id="aecc__cd_8c_html_afbc09e16b1a654de04706e07c3212ecb"><div class="ttname"><a href="ecc__cd_8c.html#afbc09e16b1a654de04706e07c3212ecb">aaruf_ecc_cd_is_suffix_correct</a></div><div class="ttdeci">bool aaruf_ecc_cd_is_suffix_correct(void *context, const uint8_t *sector)</div><div class="ttdoc">Checks if the suffix (EDC/ECC) of a CD sector is correct (Mode 1).</div><div class="ttdef"><b>Definition</b> <a href="#l00101">ecc_cd.c:101</a></div></div>
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<div class="ttc" id="aenums_8h_html_ad80740dd555f7d3688d2c4d9f44d3b04"><div class="ttname"><a href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04">TrackType</a></div><div class="ttdeci">TrackType</div><div class="ttdoc">Track (partitioning element) types for optical media.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00193">enums.h:194</a></div></div>
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<div class="ttc" id="aenums_8h_html_ad80740dd555f7d3688d2c4d9f44d3b04aa2aea1fa4875ff43b28267ad736cec62"><div class="ttname"><a href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04aa2aea1fa4875ff43b28267ad736cec62">CdMode1</a></div><div class="ttdeci">@ CdMode1</div><div class="ttdoc">Compact Disc Mode 1 data track.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00197">enums.h:197</a></div></div>
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<div class="ttc" id="aenums_8h_html_ad80740dd555f7d3688d2c4d9f44d3b04ab68a4bd72f7e85f28dcb9c5a5441743a"><div class="ttname"><a href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04ab68a4bd72f7e85f28dcb9c5a5441743a">CdMode2Form2</a></div><div class="ttdeci">@ CdMode2Form2</div><div class="ttdoc">Compact Disc Mode 2 Form 2 data track.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00200">enums.h:200</a></div></div>
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<div class="ttc" id="aenums_8h_html_ad80740dd555f7d3688d2c4d9f44d3b04af90c2d371aa1e99d911ec2173587186c"><div class="ttname"><a href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04af90c2d371aa1e99d911ec2173587186c">CdMode2Form1</a></div><div class="ttdeci">@ CdMode2Form1</div><div class="ttdoc">Compact Disc Mode 2 Form 1 data track.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00199">enums.h:199</a></div></div>
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<div class="ttc" id="aenums_8h_html_ad80740dd555f7d3688d2c4d9f44d3b04aff99910681f4abb6ac45b08562b2797e"><div class="ttname"><a href="enums_8h.html#ad80740dd555f7d3688d2c4d9f44d3b04aff99910681f4abb6ac45b08562b2797e">CdMode2Formless</a></div><div class="ttdeci">@ CdMode2Formless</div><div class="ttdoc">Compact Disc Mode 2 (formless) data track.</div><div class="ttdef"><b>Definition</b> <a href="enums_8h_source.html#l00198">enums.h:198</a></div></div>
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<div class="ttc" id="alog_8h_html"><div class="ttname"><a href="log_8h.html">log.h</a></div></div>
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<div class="ttc" id="alog_8h_html_a21cc0459b78d5f2d7bd737e5aae1278a"><div class="ttname"><a href="log_8h.html#a21cc0459b78d5f2d7bd737e5aae1278a">TRACE</a></div><div class="ttdeci">#define TRACE(fmt,...)</div><div class="ttdef"><b>Definition</b> <a href="log_8h_source.html#l00025">log.h:25</a></div></div>
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<div class="ttc" id="astructCdEccContext_html"><div class="ttname"><a href="structCdEccContext.html">CdEccContext</a></div><div class="ttdoc">Lookup tables and state for Compact Disc EDC/ECC (P/Q) regeneration / verification.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00085">context.h:86</a></div></div>
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<div class="ttc" id="astructCdEccContext_html_a0c4d1f6c6dedb3e966333d386924a359"><div class="ttname"><a href="structCdEccContext.html#a0c4d1f6c6dedb3e966333d386924a359">CdEccContext::ecc_f_table</a></div><div class="ttdeci">uint8_t * ecc_f_table</div><div class="ttdoc">Forward (F) ECC table.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00089">context.h:89</a></div></div>
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<div class="ttc" id="astructCdEccContext_html_acd41974dc45317b3bc51e04300b16d2c"><div class="ttname"><a href="structCdEccContext.html#acd41974dc45317b3bc51e04300b16d2c">CdEccContext::inited_edc</a></div><div class="ttdeci">bool inited_edc</div><div class="ttdoc">True once EDC/ECC tables have been initialized.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00087">context.h:87</a></div></div>
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<div class="ttc" id="astructCdEccContext_html_ad4146692ba163b5ab6c9f56320cef4aa"><div class="ttname"><a href="structCdEccContext.html#ad4146692ba163b5ab6c9f56320cef4aa">CdEccContext::edc_table</a></div><div class="ttdeci">uint32_t * edc_table</div><div class="ttdoc">EDC (CRC) lookup table.</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00090">context.h:90</a></div></div>
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<div class="ttc" id="astructCdEccContext_html_af969156c568c760439fc67632353aa4d"><div class="ttname"><a href="structCdEccContext.html#af969156c568c760439fc67632353aa4d">CdEccContext::ecc_b_table</a></div><div class="ttdeci">uint8_t * ecc_b_table</div><div class="ttdoc">Backward (B) ECC table (allocated, size implementation-defined).</div><div class="ttdef"><b>Definition</b> <a href="context_8h_source.html#l00088">context.h:88</a></div></div>
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