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<a href="../../d3/d9b/fat__write_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// FAT16/32 File IO Library</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// V2.6</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// Ultra-Embedded.com</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// Copyright 2003 - 2012</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Email: admin@ultra-embedded.com</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">//</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// License: GPL</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// If you would like a version with a more permissive license for use in</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// closed source commercial applications please contact me for details.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">//</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">// This file is part of FAT File IO Library.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">//</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// FAT File IO Library is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">// the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// (at your option) any later version.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">//</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// FAT File IO Library is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// GNU General Public License for more details.</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">//</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// along with FAT File IO Library; if not, write to the Free Software</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="../../da/d66/string_8h.html">string.h</a>></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include "<a class="code" href="../../d2/dd2/fat__defs_8h.html">fat_defs.h</a>"</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="../../d9/dca/fat__access_8h.html">fat_access.h</a>"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="../../d8/d3b/fat__table_8h.html">fat_table.h</a>"</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="../../d1/d6e/fat__write_8h.html">fat_write.h</a>"</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "<a class="code" href="../../d6/d8a/fat__string_8h.html">fat_string.h</a>"</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor">#include "<a class="code" href="../../db/d3e/fat__misc_8h.html">fat_misc.h</a>"</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#if FATFS_INC_WRITE_SUPPORT</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">// fatfs_add_free_space: Allocate another cluster of free space to the end</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment">// of a files cluster chain.</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="../../d1/d6e/fat__write_8h.html#ae8950d150955379c297d1ac53583f8e0"> 45</a></span> <span class="keywordtype">int</span> <a class="code" href="../../d3/d9b/fat__write_8c.html#ae8950d150955379c297d1ac53583f8e0">fatfs_add_free_space</a>(<span class="keyword">struct</span> <a class="code" href="../../dd/d1f/structfatfs.html">fatfs</a> *<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> *startCluster, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> clusters)</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> i;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> nextcluster;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> start = *startCluster;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// Set the next free cluster hint to unknown</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordflow">if</span> (<a class="code" href="../../de/d1a/structfs.html">fs</a>->next_free_cluster != <a class="code" href="../../d2/dd2/fat__defs_8h.html#a6542eeb37905e8f378fb8f3e5e94d083">FAT32_LAST_CLUSTER</a>)</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="../../db/db7/fat__table_8c.html#a41c8ddc94d8c036d0b62a67c021a0d71">fatfs_set_fs_info_next_free_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../d2/dd2/fat__defs_8h.html#a6542eeb37905e8f378fb8f3e5e94d083">FAT32_LAST_CLUSTER</a>);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">for</span> (i=0;i<clusters;i++)</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// Start looking for free clusters from the beginning</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">if</span> (<a class="code" href="../../db/db7/fat__table_8c.html#a595276233a4e5f4696cb6030ec54ed64">fatfs_find_blank_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../de/d1a/structfs.html">fs</a>->rootdir_first_cluster, &nextcluster))</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  {</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// Point last to this</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="../../db/db7/fat__table_8c.html#a9869304acfd1d264b8cebe1561dfe60a">fatfs_fat_set_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, start, nextcluster);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// Point this to end of file</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <a class="code" href="../../db/db7/fat__table_8c.html#a9869304acfd1d264b8cebe1561dfe60a">fatfs_fat_set_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, nextcluster, <a class="code" href="../../d2/dd2/fat__defs_8h.html#a6542eeb37905e8f378fb8f3e5e94d083">FAT32_LAST_CLUSTER</a>);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// Adjust argument reference</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  start = nextcluster;</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">if</span> (i == 0)</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  *startCluster = nextcluster;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> }</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment">// fatfs_allocate_free_space: Add an ammount of free space to a file either from</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment">// 'startCluster' if newFile = false, or allocating a new start to the chain if</span></div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="comment">// newFile = true.</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="../../d1/d6e/fat__write_8h.html#a68d609a89800a61f700b18500a56d30a"> 82</a></span> <span class="keywordtype">int</span> <a class="code" href="../../d3/d9b/fat__write_8c.html#a68d609a89800a61f700b18500a56d30a">fatfs_allocate_free_space</a>(<span class="keyword">struct</span> <a class="code" href="../../dd/d1f/structfatfs.html">fatfs</a> *<a class="code" href="../../de/d1a/structfs.html">fs</a>, <span class="keywordtype">int</span> newFile, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> *startCluster, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> size)</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> {</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> clusterSize;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> clusterCount;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> nextcluster;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">if</span> (size==0)</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">// Set the next free cluster hint to unknown</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="keywordflow">if</span> (<a class="code" href="../../de/d1a/structfs.html">fs</a>->next_free_cluster != <a class="code" href="../../d2/dd2/fat__defs_8h.html#a6542eeb37905e8f378fb8f3e5e94d083">FAT32_LAST_CLUSTER</a>)</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <a class="code" href="../../db/db7/fat__table_8c.html#a41c8ddc94d8c036d0b62a67c021a0d71">fatfs_set_fs_info_next_free_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../d2/dd2/fat__defs_8h.html#a6542eeb37905e8f378fb8f3e5e94d083">FAT32_LAST_CLUSTER</a>);</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  </div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="comment">// Work out size and clusters</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  clusterSize = <a class="code" href="../../de/d1a/structfs.html">fs</a>->sectors_per_cluster * <a class="code" href="../../d4/d42/fat__opts_8h.html#a873b78b38ef34edf6291274eb0708634">FAT_SECTOR_SIZE</a>;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  clusterCount = (size / clusterSize);</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// If any left over</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">if</span> (size-(clusterSize*clusterCount))</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  clusterCount++;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// Allocated first link in the chain if a new file</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">if</span> (newFile)</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../db/db7/fat__table_8c.html#a595276233a4e5f4696cb6030ec54ed64">fatfs_find_blank_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../de/d1a/structfs.html">fs</a>->rootdir_first_cluster, &nextcluster))</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// If this is all that is needed then all done</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (clusterCount==1)</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="../../db/db7/fat__table_8c.html#a9869304acfd1d264b8cebe1561dfe60a">fatfs_fat_set_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, nextcluster, <a class="code" href="../../d2/dd2/fat__defs_8h.html#a6542eeb37905e8f378fb8f3e5e94d083">FAT32_LAST_CLUSTER</a>);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  *startCluster = nextcluster;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  }</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// Allocate from end of current chain (startCluster is end of chain)</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  nextcluster = *startCluster;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../d3/d9b/fat__write_8c.html#ae8950d150955379c297d1ac53583f8e0">fatfs_add_free_space</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, &nextcluster, clusterCount))</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> }</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="comment">// fatfs_find_free_dir_offset: Find a free space in the directory for a new entry</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="comment">// which takes up 'entryCount' blocks (or allocate some more)</span></div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="keyword">static</span> <span class="keywordtype">int</span> fatfs_find_free_dir_offset(<span class="keyword">struct</span> <a class="code" href="../../dd/d1f/structfatfs.html">fatfs</a> *<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> dirCluster, <span class="keywordtype">int</span> entryCount, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> *pSector, <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *pOffset)</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">struct </span><a class="code" href="../../d4/da4/structfat__dir__entry.html">fat_dir_entry</a> *<a class="code" href="../../d7/d3a/structdirectoryEntry.html">directoryEntry</a>;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> item=0;</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a05f6b0ae8f6a6e135b0e290c25fe0e4e">uint16</a> recordoffset = 0;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> i=0;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">int</span> x=0;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordtype">int</span> possible_spaces = 0;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">int</span> start_recorded = 0;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="comment">// No entries required?</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keywordflow">if</span> (entryCount == 0)</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// Main cluster following loop</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">while</span> (1)</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  {</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// Read sector</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d8/d08/fat__access_8c.html#a934acbcc4c095b05eaacea0333675ed3">fatfs_sector_reader</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, dirCluster, x++, 0))</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  {</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="comment">// Analyse Sector</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">for</span> (item = 0; item < <a class="code" href="../../d9/dca/fat__access_8h.html#a1974ef4260c8dbfe17e49be71cf3d637">FAT_DIR_ENTRIES_PER_SECTOR</a>; item++)</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  {</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="comment">// Create the multiplier for sector access</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  recordoffset = <a class="code" href="../../d2/dd2/fat__defs_8h.html#a0d73859aacf6d6e4ece7720fed28b9ca">FAT_DIR_ENTRY_SIZE</a> * item;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  </div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="comment">// Overlay directory entry over buffer</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <a class="code" href="../../d7/d3a/structdirectoryEntry.html">directoryEntry</a> = (<span class="keyword">struct </span><a class="code" href="../../d4/da4/structfat__dir__entry.html">fat_dir_entry</a>*)(<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector+recordoffset);</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  </div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="comment">// LFN Entry</span></div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d6/d75/fat__misc_8c.html#a7dac9a0d5348d1d6e9df6479c29d03c4">fatfs_entry_lfn_text</a>(<a class="code" href="../../d7/d3a/structdirectoryEntry.html">directoryEntry</a>))</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  {</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">// First entry?</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span> (possible_spaces == 0)</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="comment">// Store start</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  *pSector = x-1;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  *pOffset = item;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  start_recorded = 1;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  </div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="comment">// Increment the count in-case the file turns</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">// out to be deleted...</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  possible_spaces++;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  }</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">// SFN Entry</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  {</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="comment">// Has file been deleted?</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">if</span> (<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector[recordoffset] == <a class="code" href="../../d2/dd2/fat__defs_8h.html#acc2882877e3f516e53feb76ee87013d3">FILE_HEADER_DELETED</a>)</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  {</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="comment">// First entry?</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (possible_spaces == 0)</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  {</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Store start</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  *pSector = x-1;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  *pOffset = item;</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  start_recorded = 1;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  }</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  possible_spaces++;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="comment">// We have found enough space?</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (possible_spaces >= entryCount)</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  </div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="comment">// Else continue counting until we find a valid entry!</span></div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">// Is the file entry empty?</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector[recordoffset] == <a class="code" href="../../d2/dd2/fat__defs_8h.html#a7e2aeee00ea979682b81bea8f046af71">FILE_HEADER_BLANK</a>)</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  {</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// First entry?</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (possible_spaces == 0)</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  {</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">// Store start</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  *pSector = x-1;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  *pOffset = item;</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  start_recorded = 1;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  }</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  </div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="comment">// Increment the blank entries count</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  possible_spaces++;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  </div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// We have found enough space?</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">if</span> (possible_spaces >= entryCount)</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  }</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// File entry is valid</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  {</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="comment">// Reset all flags</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  possible_spaces = 0;</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  start_recorded = 0;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  }</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  } <span class="comment">// End of for</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  } <span class="comment">// End of if</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="comment">// Run out of free space in the directory, allocate some more</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> newCluster;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  </div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">// Get a new cluster for directory</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../db/db7/fat__table_8c.html#a595276233a4e5f4696cb6030ec54ed64">fatfs_find_blank_cluster</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../de/d1a/structfs.html">fs</a>->rootdir_first_cluster, &newCluster))</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// Add cluster to end of directory tree</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../db/db7/fat__table_8c.html#af55ecc38d5888e53106fd26fd6805d5c">fatfs_fat_add_cluster_to_chain</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, dirCluster, newCluster))</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  </div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="comment">// Erase new directory cluster</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <a class="code" href="../../da/d66/string_8h.html#ace4b911463887af5e748326323e99a23">memset</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector, 0x00, <a class="code" href="../../d4/d42/fat__opts_8h.html#a873b78b38ef34edf6291274eb0708634">FAT_SECTOR_SIZE</a>);</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">for</span> (i=0;i<<a class="code" href="../../de/d1a/structfs.html">fs</a>->sectors_per_cluster;i++)</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  {</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../d8/d08/fat__access_8c.html#aba0dfdb700ff90e17883a8fea582f491">fatfs_write_sector</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, newCluster, i, 0))</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  }</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  </div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="comment">// If non of the name fitted on previous sectors</span></div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">if</span> (!start_recorded)</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  {</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// Store start</span></div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  *pSector = (x-1);</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  *pOffset = 0;</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  start_recorded = 1;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  }</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  </div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  } <span class="comment">// End of while loop</span></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  </div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span> }</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> <span class="comment">// fatfs_add_file_entry: Add a directory entry to a location found by FindFreeOffset</span></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="comment">//-----------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"><a class="line" href="../../d1/d6e/fat__write_8h.html#a1d762d2afde765d8848e7eaff4dd2fb1"> 266</a></span> <span class="keywordtype">int</span> <a class="code" href="../../d3/d9b/fat__write_8c.html#a1d762d2afde765d8848e7eaff4dd2fb1">fatfs_add_file_entry</a>(<span class="keyword">struct</span> <a class="code" href="../../dd/d1f/structfatfs.html">fatfs</a> *<a class="code" href="../../de/d1a/structfs.html">fs</a>, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> dirCluster, <span class="keywordtype">char</span> *filename, <span class="keywordtype">char</span> *shortfilename, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> startCluster, <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> size, <span class="keywordtype">int</span> dir)</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> {</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> item=0;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a05f6b0ae8f6a6e135b0e290c25fe0e4e">uint16</a> recordoffset = 0;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> i=0;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> x=0;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordtype">int</span> entryCount;</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="keyword">struct </span><a class="code" href="../../d4/da4/structfat__dir__entry.html">fat_dir_entry</a> shortEntry;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordtype">int</span> dirtySector = 0;</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  </div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <a class="code" href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a> dirSector = 0;</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> dirOffset = 0;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keywordtype">int</span> foundEnd = 0;</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  </div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> checksum;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a> *pSname;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  </div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// No write access?</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../de/d1a/structfs.html">fs</a>->disk_io.write_media)</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  </div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="preprocessor">#if FATFS_INC_LFN_SUPPORT</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="comment">// How many LFN entries are required?</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="comment">// NOTE: We always request one LFN even if it would fit in a SFN!</span></div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  entryCount = <a class="code" href="../../d6/d75/fat__misc_8c.html#ac8a7ba27f05e541eda01418c21acca7c">fatfs_lfn_entries_required</a>(filename);</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">if</span> (!entryCount)</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  entryCount = 0;</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  </div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="comment">// Find space in the directory for this filename (or allocate some more)</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  <span class="comment">// NOTE: We need to find space for at least the LFN + SFN (or just the SFN if LFNs not supported).</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordflow">if</span> (!fatfs_find_free_dir_offset(<a class="code" href="../../de/d1a/structfs.html">fs</a>, dirCluster, entryCount + 1, &dirSector, &dirOffset))</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  </div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="comment">// Generate checksum of short filename</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  pSname = (<a class="code" href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a>*)shortfilename;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  checksum = 0;</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  <span class="keywordflow">for</span> (i=11; i!=0; i--) checksum = ((checksum & 1) ? 0x80 : 0) + (checksum >> 1) + *pSname++;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  </div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  <span class="comment">// Start from current sector where space was found!</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  x = dirSector;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  </div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="comment">// Main cluster following loop</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">while</span> (1)</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  {</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">// Read sector</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d8/d08/fat__access_8c.html#a934acbcc4c095b05eaacea0333675ed3">fatfs_sector_reader</a>(<a class="code" href="../../de/d1a/structfs.html">fs</a>, dirCluster, x++, 0))</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  {</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="comment">// Analyse Sector</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">for</span> (item = 0; item < <a class="code" href="../../d9/dca/fat__access_8h.html#a1974ef4260c8dbfe17e49be71cf3d637">FAT_DIR_ENTRIES_PER_SECTOR</a>; item++)</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  {</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">// Create the multiplier for sector access</span></div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  recordoffset = <a class="code" href="../../d2/dd2/fat__defs_8h.html#a0d73859aacf6d6e4ece7720fed28b9ca">FAT_DIR_ENTRY_SIZE</a> * item;</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  </div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="comment">// If the start position for the entry has been found</span></div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keywordflow">if</span> (foundEnd==0)</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">if</span> ( (dirSector==(x-1)) && (dirOffset==item) )</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  foundEnd = 1;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  </div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="comment">// Start adding filename</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordflow">if</span> (foundEnd)</div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  {</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keywordflow">if</span> (entryCount==0)</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  {</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  <span class="comment">// Short filename</span></div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <a class="code" href="../../d6/d75/fat__misc_8c.html#ae562db5b28f07a3d0407e38aa9a77c13">fatfs_sfn_create_entry</a>(shortfilename, size, startCluster, &shortEntry, dir);</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  </div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> <span class="preprocessor">#if FATFS_INC_TIME_DATE_SUPPORT</span></div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="comment">// Update create, access & modify time & date</span></div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <a class="code" href="../../d9/dca/fat__access_8h.html#a7c037882a907d50957d58ba53e1ef897">fatfs_update_timestamps</a>(&shortEntry, 1, 1, 1);</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  </div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="../../da/d66/string_8h.html#ae33b18edb618c656b9b795b9fce2316c">memcpy</a>(&<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector[recordoffset], &shortEntry, <span class="keyword">sizeof</span>(shortEntry));</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  </div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="comment">// Writeback</span></div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">return</span> <a class="code" href="../../de/d1a/structfs.html">fs</a>->disk_io.write_media(<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.address, <a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector, 1);</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  }</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="preprocessor">#if FATFS_INC_LFN_SUPPORT</span></div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  {</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  entryCount--;</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  </div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="comment">// Copy entry to directory buffer</span></div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <a class="code" href="../../d6/d75/fat__misc_8c.html#a0af6939cdfa14c20077e9508d1fd861d">fatfs_filename_to_lfn</a>(filename, &<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector[recordoffset], entryCount, checksum);</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  dirtySector = 1;</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  }</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  }</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  } <span class="comment">// End of if</span></div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  </div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">// Write back to disk before loading another sector</span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">if</span> (dirtySector)</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  {</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">if</span> (!<a class="code" href="../../de/d1a/structfs.html">fs</a>->disk_io.write_media(<a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.address, <a class="code" href="../../de/d1a/structfs.html">fs</a>->currentsector.sector, 1))</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  </div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  dirtySector = 0;</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  }</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  }</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  } <span class="comment">// End of while loop</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  </div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> }</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor">#endif</span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="afat__table_8c_html_af55ecc38d5888e53106fd26fd6805d5c"><div class="ttname"><a href="../../db/db7/fat__table_8c.html#af55ecc38d5888e53106fd26fd6805d5c">fatfs_fat_add_cluster_to_chain</a></div><div class="ttdeci">int fatfs_fat_add_cluster_to_chain(struct fatfs *fs, uint32 start_cluster, uint32 newEntry)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/db7/fat__table_8c_source.html#l00414">fat_table.c:414</a></div></div>
<div class="ttc" id="afat__access_8h_html_a7c037882a907d50957d58ba53e1ef897"><div class="ttname"><a href="../../d9/dca/fat__access_8h.html#a7c037882a907d50957d58ba53e1ef897">fatfs_update_timestamps</a></div><div class="ttdeci">int fatfs_update_timestamps(struct fat_dir_entry *directoryEntry, int create, int modify, int access)</div></div>
<div class="ttc" id="afat__write_8h_html"><div class="ttname"><a href="../../d1/d6e/fat__write_8h.html">fat_write.h</a></div></div>
<div class="ttc" id="afat__access_8h_html"><div class="ttname"><a href="../../d9/dca/fat__access_8h.html">fat_access.h</a></div></div>
<div class="ttc" id="afat__table_8h_html"><div class="ttname"><a href="../../d8/d3b/fat__table_8h.html">fat_table.h</a></div></div>
<div class="ttc" id="afat__types_8h_html_adde6aaee8457bee49c2a92621fe22b79"><div class="ttname"><a href="../../de/d31/fat__types_8h.html#adde6aaee8457bee49c2a92621fe22b79">uint8</a></div><div class="ttdeci">unsigned char uint8</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d31/fat__types_8h_source.html#l00015">fat_types.h:15</a></div></div>
<div class="ttc" id="afat__write_8c_html_a1d762d2afde765d8848e7eaff4dd2fb1"><div class="ttname"><a href="../../d3/d9b/fat__write_8c.html#a1d762d2afde765d8848e7eaff4dd2fb1">fatfs_add_file_entry</a></div><div class="ttdeci">int fatfs_add_file_entry(struct fatfs *fs, uint32 dirCluster, char *filename, char *shortfilename, uint32 startCluster, uint32 size, int dir)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d9b/fat__write_8c_source.html#l00266">fat_write.c:266</a></div></div>
<div class="ttc" id="afat__defs_8h_html_a6542eeb37905e8f378fb8f3e5e94d083"><div class="ttname"><a href="../../d2/dd2/fat__defs_8h.html#a6542eeb37905e8f378fb8f3e5e94d083">FAT32_LAST_CLUSTER</a></div><div class="ttdeci">#define FAT32_LAST_CLUSTER</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dd2/fat__defs_8h_source.html#l00108">fat_defs.h:108</a></div></div>
<div class="ttc" id="afat__misc_8c_html_ae562db5b28f07a3d0407e38aa9a77c13"><div class="ttname"><a href="../../d6/d75/fat__misc_8c.html#ae562db5b28f07a3d0407e38aa9a77c13">fatfs_sfn_create_entry</a></div><div class="ttdeci">void fatfs_sfn_create_entry(char *shortfilename, uint32 size, uint32 startCluster, struct fat_dir_entry *entry, int dir)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d75/fat__misc_8c_source.html#l00226">fat_misc.c:226</a></div></div>
<div class="ttc" id="astring_8h_html"><div class="ttname"><a href="../../da/d66/string_8h.html">string.h</a></div></div>
<div class="ttc" id="afat__misc_8c_html_ac8a7ba27f05e541eda01418c21acca7c"><div class="ttname"><a href="../../d6/d75/fat__misc_8c.html#ac8a7ba27f05e541eda01418c21acca7c">fatfs_lfn_entries_required</a></div><div class="ttdeci">int fatfs_lfn_entries_required(char *filename)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d75/fat__misc_8c_source.html#l00173">fat_misc.c:173</a></div></div>
<div class="ttc" id="astructdirectoryEntry_html"><div class="ttname"><a href="../../d7/d3a/structdirectoryEntry.html">directoryEntry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d32/include_2ubixfs_2ubixfs_8h_source.html#l00098">ubixfs.h:98</a></div></div>
<div class="ttc" id="afat__table_8c_html_a41c8ddc94d8c036d0b62a67c021a0d71"><div class="ttname"><a href="../../db/db7/fat__table_8c.html#a41c8ddc94d8c036d0b62a67c021a0d71">fatfs_set_fs_info_next_free_cluster</a></div><div class="ttdeci">void fatfs_set_fs_info_next_free_cluster(struct fatfs *fs, uint32 newValue)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/db7/fat__table_8c_source.html#l00260">fat_table.c:260</a></div></div>
<div class="ttc" id="afat__defs_8h_html_a7e2aeee00ea979682b81bea8f046af71"><div class="ttname"><a href="../../d2/dd2/fat__defs_8h.html#a7e2aeee00ea979682b81bea8f046af71">FILE_HEADER_BLANK</a></div><div class="ttdeci">#define FILE_HEADER_BLANK</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dd2/fat__defs_8h_source.html#l00082">fat_defs.h:82</a></div></div>
<div class="ttc" id="afat__defs_8h_html"><div class="ttname"><a href="../../d2/dd2/fat__defs_8h.html">fat_defs.h</a></div></div>
<div class="ttc" id="astring_8h_html_ae33b18edb618c656b9b795b9fce2316c"><div class="ttname"><a href="../../da/d66/string_8h.html#ae33b18edb618c656b9b795b9fce2316c">memcpy</a></div><div class="ttdeci">void * memcpy(const void *dst, const void *src, size_t length)</div></div>
<div class="ttc" id="afat__table_8c_html_a595276233a4e5f4696cb6030ec54ed64"><div class="ttname"><a href="../../db/db7/fat__table_8c.html#a595276233a4e5f4696cb6030ec54ed64">fatfs_find_blank_cluster</a></div><div class="ttdeci">int fatfs_find_blank_cluster(struct fatfs *fs, uint32 start_cluster, uint32 *free_cluster)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/db7/fat__table_8c_source.html#l00288">fat_table.c:288</a></div></div>
<div class="ttc" id="astructfs_html"><div class="ttname"><a href="../../de/d1a/structfs.html">fs</a></div><div class="ttdef"><b>Definition:</b> <a href="../../dc/d5b/ufs_2ffs_2fs_8h_source.html#l00260">fs.h:260</a></div></div>
<div class="ttc" id="afat__misc_8c_html_a7dac9a0d5348d1d6e9df6479c29d03c4"><div class="ttname"><a href="../../d6/d75/fat__misc_8c.html#a7dac9a0d5348d1d6e9df6479c29d03c4">fatfs_entry_lfn_text</a></div><div class="ttdeci">int fatfs_entry_lfn_text(struct fat_dir_entry *entry)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d75/fat__misc_8c_source.html#l00110">fat_misc.c:110</a></div></div>
<div class="ttc" id="afat__defs_8h_html_a0d73859aacf6d6e4ece7720fed28b9ca"><div class="ttname"><a href="../../d2/dd2/fat__defs_8h.html#a0d73859aacf6d6e4ece7720fed28b9ca">FAT_DIR_ENTRY_SIZE</a></div><div class="ttdeci">#define FAT_DIR_ENTRY_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dd2/fat__defs_8h_source.html#l00067">fat_defs.h:67</a></div></div>
<div class="ttc" id="afat__access_8c_html_a934acbcc4c095b05eaacea0333675ed3"><div class="ttname"><a href="../../d8/d08/fat__access_8c.html#a934acbcc4c095b05eaacea0333675ed3">fatfs_sector_reader</a></div><div class="ttdeci">int fatfs_sector_reader(struct fatfs *fs, uint32 start_cluster, uint32 offset, uint8 *target)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d08/fat__access_8c_source.html#l00213">fat_access.c:213</a></div></div>
<div class="ttc" id="afat__access_8c_html_aba0dfdb700ff90e17883a8fea582f491"><div class="ttname"><a href="../../d8/d08/fat__access_8c.html#aba0dfdb700ff90e17883a8fea582f491">fatfs_write_sector</a></div><div class="ttdeci">int fatfs_write_sector(struct fatfs *fs, uint32 cluster, uint32 sector, uint8 *target)</div><div class="ttdef"><b>Definition:</b> <a href="../../d8/d08/fat__access_8c_source.html#l00311">fat_access.c:311</a></div></div>
<div class="ttc" id="afat__opts_8h_html_a873b78b38ef34edf6291274eb0708634"><div class="ttname"><a href="../../d4/d42/fat__opts_8h.html#a873b78b38ef34edf6291274eb0708634">FAT_SECTOR_SIZE</a></div><div class="ttdeci">#define FAT_SECTOR_SIZE</div><div class="ttdef"><b>Definition:</b> <a href="../../d4/d42/fat__opts_8h_source.html#l00070">fat_opts.h:70</a></div></div>
<div class="ttc" id="afat__misc_8h_html"><div class="ttname"><a href="../../db/d3e/fat__misc_8h.html">fat_misc.h</a></div></div>
<div class="ttc" id="afat__string_8h_html"><div class="ttname"><a href="../../d6/d8a/fat__string_8h.html">fat_string.h</a></div></div>
<div class="ttc" id="astructfat__dir__entry_html"><div class="ttname"><a href="../../d4/da4/structfat__dir__entry.html">fat_dir_entry</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dd2/fat__defs_8h_source.html#l00112">fat_defs.h:112</a></div></div>
<div class="ttc" id="afat__misc_8c_html_a0af6939cdfa14c20077e9508d1fd861d"><div class="ttname"><a href="../../d6/d75/fat__misc_8c.html#a0af6939cdfa14c20077e9508d1fd861d">fatfs_filename_to_lfn</a></div><div class="ttdeci">void fatfs_filename_to_lfn(char *filename, uint8 *buffer, int entry, uint8 sfnChk)</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d75/fat__misc_8c_source.html#l00186">fat_misc.c:186</a></div></div>
<div class="ttc" id="afat__write_8c_html_ae8950d150955379c297d1ac53583f8e0"><div class="ttname"><a href="../../d3/d9b/fat__write_8c.html#ae8950d150955379c297d1ac53583f8e0">fatfs_add_free_space</a></div><div class="ttdeci">int fatfs_add_free_space(struct fatfs *fs, uint32 *startCluster, uint32 clusters)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d9b/fat__write_8c_source.html#l00045">fat_write.c:45</a></div></div>
<div class="ttc" id="astring_8h_html_ace4b911463887af5e748326323e99a23"><div class="ttname"><a href="../../da/d66/string_8h.html#ace4b911463887af5e748326323e99a23">memset</a></div><div class="ttdeci">void * memset(void *dst, int c, size_t length)</div></div>
<div class="ttc" id="afat__write_8c_html_a68d609a89800a61f700b18500a56d30a"><div class="ttname"><a href="../../d3/d9b/fat__write_8c.html#a68d609a89800a61f700b18500a56d30a">fatfs_allocate_free_space</a></div><div class="ttdeci">int fatfs_allocate_free_space(struct fatfs *fs, int newFile, uint32 *startCluster, uint32 size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d9b/fat__write_8c_source.html#l00082">fat_write.c:82</a></div></div>
<div class="ttc" id="afat__access_8h_html_a1974ef4260c8dbfe17e49be71cf3d637"><div class="ttname"><a href="../../d9/dca/fat__access_8h.html#a1974ef4260c8dbfe17e49be71cf3d637">FAT_DIR_ENTRIES_PER_SECTOR</a></div><div class="ttdeci">#define FAT_DIR_ENTRIES_PER_SECTOR</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/dca/fat__access_8h_source.html#l00019">fat_access.h:19</a></div></div>
<div class="ttc" id="afat__types_8h_html_a05f6b0ae8f6a6e135b0e290c25fe0e4e"><div class="ttname"><a href="../../de/d31/fat__types_8h.html#a05f6b0ae8f6a6e135b0e290c25fe0e4e">uint16</a></div><div class="ttdeci">unsigned short uint16</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d31/fat__types_8h_source.html#l00016">fat_types.h:16</a></div></div>
<div class="ttc" id="afat__defs_8h_html_acc2882877e3f516e53feb76ee87013d3"><div class="ttname"><a href="../../d2/dd2/fat__defs_8h.html#acc2882877e3f516e53feb76ee87013d3">FILE_HEADER_DELETED</a></div><div class="ttdeci">#define FILE_HEADER_DELETED</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/dd2/fat__defs_8h_source.html#l00083">fat_defs.h:83</a></div></div>
<div class="ttc" id="afat__table_8c_html_a9869304acfd1d264b8cebe1561dfe60a"><div class="ttname"><a href="../../db/db7/fat__table_8c.html#a9869304acfd1d264b8cebe1561dfe60a">fatfs_fat_set_cluster</a></div><div class="ttdeci">int fatfs_fat_set_cluster(struct fatfs *fs, uint32 cluster, uint32 next_cluster)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/db7/fat__table_8c_source.html#l00349">fat_table.c:349</a></div></div>
<div class="ttc" id="afat__types_8h_html_a4b435a49c74bb91f284f075e63416cb6"><div class="ttname"><a href="../../de/d31/fat__types_8h.html#a4b435a49c74bb91f284f075e63416cb6">uint32</a></div><div class="ttdeci">unsigned long uint32</div><div class="ttdef"><b>Definition:</b> <a href="../../de/d31/fat__types_8h_source.html#l00023">fat_types.h:23</a></div></div>
<div class="ttc" id="astructfatfs_html"><div class="ttname"><a href="../../dd/d1f/structfatfs.html">fatfs</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d9/dca/fat__access_8h_source.html#l00057">fat_access.h:57</a></div></div>
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