avrgsm__zip_8h.html

SMS傳送Sourcode,compiler with C,AT command

<p>
References <a class="el" href="AVRGSM__zip_8c-source.html#l00026">hex_lookup</a>, <a class="el" href="AVRGSM__zip_8c-source.html#l00027">mask</a>, <a class="el" href="AVRGSM__zip_8h-source.html#l00026">MESSAGE_LENGTH</a>, and <a class="el" href="AVRGSM__zip_8c-source.html#l00028">power</a>.
<p>
Referenced by <a class="el" href="AVRGSM__api_8c-source.html#l00160">API_sendmsg()</a>.
<p>
<pre class="fragment"><div>00041 {
00042 
00044     <span class="keywordtype">int</span> i,ii,iii;
00045     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> encode_c, now_c, next_c;
00046 
00047     <span class="comment">//Initialization</span>
00048     *discarded = 0;
00049 
00050     <span class="keywordflow">for</span>( i = ii = iii = 0; ( in[i] != <span class="charliteral">'\0'</span> ) &amp;&amp; ( i &lt; <a class="code" href="AVRGSM__zip_8h.html#a1">MESSAGE_LENGTH</a> ); )   <span class="comment">//Run through whole string</span>
00051     {
00052         now_c = in[ i++ ];                                                  <span class="comment">//This char</span>
00053         next_c = in[ i ];                                                   <span class="comment">//Next potentially '\0'</span>
00054 
00055         <span class="comment">//Last char?</span>
00056         <span class="keywordflow">if</span>( next_c == <span class="charliteral">'\0'</span> )
00057         {
00058             next_c = 0;
00059         }
00060 
00061         encode_c = ( now_c &gt;&gt; ii )+ ( <a class="code" href="AVRGSM__zip_8c.html#a1">mask</a>[ ii ] &amp; next_c )*<a class="code" href="AVRGSM__zip_8c.html#a2">power</a>[ ii ];
00062         ret[ iii++ ] = <a class="code" href="AVRGSM__zip_8c.html#a0">hex_lookup</a>[ ( encode_c &gt;&gt; 4 ) &amp; 0x0F ];               <span class="comment">//Insert first hex part</span>
00063         ret[ iii++ ] = <a class="code" href="AVRGSM__zip_8c.html#a0">hex_lookup</a>[ ( encode_c &amp; 0x0F ) ];                    <span class="comment">//Insert last hex part</span>
00064 
00065         <span class="keywordflow">if</span>( ii == 6 )                                                        <span class="comment">//We have read a chunk of 7 chars, the next one will be discarded</span>
00066         {
00067             ii = 0;
00068             i++;
00069             (*discarded)++;
00070         }
00071 
00072         <span class="keywordflow">else</span>
00073         {
00074             ii++;
00075         }
00076     }
00077 
00078     ret[iii] = <span class="charliteral">'\0'</span>;
00079 
00080     <span class="keywordflow">return</span> i;
00081 }
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<a class="anchor" name="a4" doxytag="AVRGSM_zip.h::ZIP_decompress" ></a><p>
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          <td class="md" nowrap valign="top"> int ZIP_decompress           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">unsigned char *&nbsp;</td>
          <td class="mdname" nowrap> <em>compressed</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>unsigned char *&nbsp;</td>
          <td class="mdname" nowrap> <em>decompressed</em></td>
        </tr>
        <tr>
          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
ZIP_decompress will decode a message in PDU format into a readable string. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>*compressed</em>&nbsp;</td><td>PDU encoded text </td></tr>
    <tr><td></td><td valign=top><em>*decompressed</em>&nbsp;</td><td>Pointer to return array</td></tr>
  </table>
</dl>
<dl compact><dt><b>Return values:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>iii</em>&nbsp;</td><td>Number of decoded chars</td></tr>
  </table>
</dl>
<p>
Local variables 
<p>
Definition at line <a class="el" href="AVRGSM__zip_8c-source.html#l00091">91</a> of file <a class="el" href="AVRGSM__zip_8c-source.html">AVRGSM_zip.c</a>.
<p>
References <a class="el" href="AVRGSM__zip_8c-source.html#l00027">mask</a>, and <a class="el" href="AVRGSM__zip_8c-source.html#l00164">ZIP_htoi()</a>.
<p>
Referenced by <a class="el" href="AVRGSM__api_8c-source.html#l00232">API_readmsg()</a>.
<p>
<pre class="fragment"><div>00092 {
00093 
00095     <span class="keywordtype">int</span> i,ii,iii;                                                           <span class="comment">//String index</span>
00096     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> rest_c, ans_c ,dec_c , this_c, next_c;                    <span class="comment">//Read and temorary variables</span>
00097 
00098     <span class="keywordflow">for</span>( i = ii = iii = rest_c = 0; (this_c = compressed[i++]) != <span class="charliteral">'\0'</span>; )   <span class="comment">//Run through complete string</span>
00099     {
00100         <span class="comment">//Read:</span>
00101         next_c = compressed[i++];                                           <span class="comment">//Read from in buffer in AVR_SMS_com.c</span>
00102 
00103         <span class="comment">//Convert:</span>
00104         dec_c = 16 * <a class="code" href="AVRGSM__zip_8h.html#a6">ZIP_htoi</a>( this_c ) + <a class="code" href="AVRGSM__zip_8h.html#a6">ZIP_htoi</a>( next_c );               <span class="comment">//Decimal value of the two chars</span>
00105         ans_c = dec_c &amp; <a class="code" href="AVRGSM__zip_8c.html#a1">mask</a>[6 - ii];                                       <span class="comment">//Mask out the correct bits</span>
00106         ans_c &lt;&lt;= ii;                                                       <span class="comment">//Left shift proper correct of times</span>
00107         decompressed[iii++] = ans_c + rest_c;                               <span class="comment">//Store</span>
00108 
00109         rest_c = (dec_c &amp; ~<a class="code" href="AVRGSM__zip_8c.html#a1">mask</a>[6 - ii]) &gt;&gt; ( 7 - ii );                     <span class="comment">//Saving up for next time</span>
00110 
00111         <span class="keywordflow">if</span>( ii == 6)                                                        <span class="comment">//Do carry</span>
00112         {
00113             ii = 0;
00114             decompressed[ iii++ ] = rest_c;
00115             rest_c = 0;
00116         }
00117 
00118         <span class="keywordflow">else</span>
00119         {
00120             ii++;
00121         }
00122 
00123     }
00124 
00125     decompressed[ iii ] = <span class="charliteral">'\0'</span>;                                             <span class="comment">//Terminate string in a proper manner</span>
00126     <span class="keywordflow">return</span> iii;                                                             <span class="comment">//Return length</span>
00127 }
</div></pre>
<p>
Here is the call graph for this function:<p><center><img src="AVRGSM__zip_8h_a4_cgraph.png" border="0" usemap="#AVRGSM__zip_8h_a4_cgraph_map" alt=""></center>
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<a class="anchor" name="a6" doxytag="AVRGSM_zip.h::ZIP_htoi" ></a><p>
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          <td class="md" nowrap valign="top"> int ZIP_htoi           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">unsigned char&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>hex</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Convert hex to int. 
<p>
This function will take a hex in char format and return int value<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>hex</em>&nbsp;</td><td>Hex value to convert</td></tr>
  </table>
</dl>
<dl compact><dt><b>Return values:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>int</em>&nbsp;</td><td>Integer representation of hex-value </td></tr>
  </table>
</dl>

<p>
Definition at line <a class="el" href="AVRGSM__zip_8c-source.html#l00164">164</a> of file <a class="el" href="AVRGSM__zip_8c-source.html">AVRGSM_zip.c</a>.
<p>
Referenced by <a class="el" href="AVRGSM__tools_8c-source.html#l00080">TOOLS__decodeCMGR()</a>, and <a class="el" href="AVRGSM__zip_8c-source.html#l00091">ZIP_decompress()</a>.
<p>
<pre class="fragment"><div>00165 {
00166 
00167     <span class="keywordflow">if</span>( ( hex &gt;= <span class="charliteral">'A'</span> ) &amp;&amp; ( hex &lt;= <span class="charliteral">'F'</span> ) )    <span class="comment">//Test if hex is A--&gt;F?</span>
00168     {
00169         <span class="keywordflow">return</span> hex - <span class="charliteral">'A'</span> + 10;
00170     }
00171     <span class="keywordflow">else</span>                                      <span class="comment">//Must have something else then:0--&gt;9</span>
00172     {
00173         <span class="keywordflow">return</span> hex - <span class="charliteral">'0'</span>;
00174     }
00175 }
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<a class="anchor" name="a7" doxytag="AVRGSM_zip.h::ZIP_itoh" ></a><p>
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          <td class="md" nowrap valign="top"> void ZIP_itoh           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">int&nbsp;</td>
          <td class="mdname" nowrap> <em>n</em>, </td>
        </tr>
        <tr>
          <td class="md" nowrap align="right"></td>
          <td></td>
          <td class="md" nowrap>unsigned char *&nbsp;</td>
          <td class="mdname" nowrap> <em>ret</em></td>
        </tr>
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          <td></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"></td>
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<p>
Converting int [0-&gt;255] to hex value. 
<p>
<dl compact><dt><b>Note:</b></dt><dd>Will return hex value as string.</dd></dl>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td></td><td valign=top><em>n</em>&nbsp;</td><td>Integer value to be decoded. </td></tr>
    <tr><td></td><td valign=top><em>ret</em>&nbsp;</td><td>Return array. </td></tr>
  </table>
</dl>

<p>
Definition at line <a class="el" href="AVRGSM__zip_8c-source.html#l00187">187</a> of file <a class="el" href="AVRGSM__zip_8c-source.html">AVRGSM_zip.c</a>.
<p>
References <a class="el" href="AVRGSM__zip_8c-source.html#l00026">hex_lookup</a>.
<p>
Referenced by <a class="el" href="AVRGSM__api_8c-source.html#l00160">API_sendmsg()</a>.
<p>
<pre class="fragment"><div>00188 {
00189 
00190     ret[ 0 ] = <a class="code" href="AVRGSM__zip_8c.html#a0">hex_lookup</a>[ ( n &gt;&gt; 4 ) &amp; 0x0F ];
00191     ret[ 1 ] = <a class="code" href="AVRGSM__zip_8c.html#a0">hex_lookup</a>[ ( n &amp; 0x0F ) ];
00192     ret[ 2 ] = <span class="charliteral">'\0'</span>;
00193 }
</div></pre>    </td>
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