pdc_8h.html

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          <td></td>
          <td class="paramtype">unsigned short&nbsp;</td>
          <td class="paramname"> <em>tc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&nbsp;</td>
          <td class="paramname"> <em>tnp</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">unsigned short&nbsp;</td>
          <td class="paramname"> <em>tnc</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td width="100%"></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Give pointers and size of transmit buffers to the PDC (Peripheral DMA Controller), and enables the transmitter. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>dev</em>&nbsp;</td><td>pointer to the base memory address of the device </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>tp</em>&nbsp;</td><td>pointer to the transmit buffer </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>tc</em>&nbsp;</td><td>size of the transmit buffer </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>tnp</em>&nbsp;</td><td>pointer to the next transmit buffer </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>tnc</em>&nbsp;</td><td>size of the next transmit buffer </td></tr>
  </table>
</dl>

<p>
Definition at line <a class="el" href="pdc_8c-source.html#l00195">195</a> of file <a class="el" href="pdc_8c-source.html">pdc.c</a>.
<p>
References <a class="el" href="pdc_8c-source.html#l00097">pdc_disableTx()</a>, and <a class="el" href="pdc_8c-source.html#l00123">pdc_enableTx()</a>.
<p>
Referenced by <a class="el" href="usart__example3_8c-source.html#l00047">main()</a>.<div class="fragment"><pre class="fragment"><a name="l00200"></a>00200 {
<a name="l00201"></a>00201         <a class="code" href="pdc_8c.html#e1ea60180ce5ff3c1de231a030750200">pdc_disableTx</a>( dev );
<a name="l00202"></a>00202 
<a name="l00203"></a>00203         <span class="keywordflow">if</span>( tp == 0 || tc == 0 ) {
<a name="l00204"></a>00204                 <span class="keywordflow">return</span>;
<a name="l00205"></a>00205         }
<a name="l00206"></a>00206 
<a name="l00207"></a>00207         ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tpr = (long)tp;
<a name="l00208"></a>00208         ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tcr = tc;
<a name="l00209"></a>00209 
<a name="l00210"></a>00210         <span class="keywordflow">if</span>( tnp != 0 ) {
<a name="l00211"></a>00211                 ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tnpr = (long)tnp;
<a name="l00212"></a>00212                 ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tncr = tnc;
<a name="l00213"></a>00213         }
<a name="l00214"></a>00214 
<a name="l00215"></a>00215         <a class="code" href="pdc_8c.html#4d8e210909d08e220d94ba17f30d6788">pdc_enableTx</a>( dev );
<a name="l00216"></a>00216 
<a name="l00217"></a>00217         <span class="keywordflow">return</span>;
<a name="l00218"></a>00218 }
</pre></div>
<p>

<p>
Here is the call graph for this function:
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</div><p>
<a class="anchor" name="3c7c380b83f6694e27d8a9332331c148"></a><!-- doxytag: member="pdc.h::pdc_setTxNextBuf" ref="3c7c380b83f6694e27d8a9332331c148" args="(void *dev, void *tnp, unsigned short tnc)" -->
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          <td class="memname">void pdc_setTxNextBuf           </td>
          <td>(</td>
          <td class="paramtype">void *&nbsp;</td>
          <td class="paramname"> <em>dev</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&nbsp;</td>
          <td class="paramname"> <em>tnp</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">unsigned short&nbsp;</td>
          <td class="paramname"> <em>tnc</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td width="100%"></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Give pointers and size of the next transmit buffers to add to the PDC (Peripheral DMA Controller). 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>dev</em>&nbsp;</td><td>pointer to the base memory address of the device </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>tnp</em>&nbsp;</td><td>pointer to the next transmit buffer </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>tnc</em>&nbsp;</td><td>size of the next transmit buffer </td></tr>
  </table>
</dl>

<p>
Definition at line <a class="el" href="pdc_8c-source.html#l00228">228</a> of file <a class="el" href="pdc_8c-source.html">pdc.c</a>.<div class="fragment"><pre class="fragment"><a name="l00231"></a>00231 {
<a name="l00232"></a>00232         <span class="keywordflow">if</span>( tnp == 0 || tnc == 0 ) {
<a name="l00233"></a>00233                 <span class="keywordflow">return</span>;
<a name="l00234"></a>00234         }
<a name="l00235"></a>00235 
<a name="l00236"></a>00236         ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tnpr = (long)tnp;
<a name="l00237"></a>00237         ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tncr = tnc;
<a name="l00238"></a>00238 
<a name="l00239"></a>00239         <span class="keywordflow">return</span>;
<a name="l00240"></a>00240 }
</pre></div>
<p>

</div>
</div><p>
<a class="anchor" name="e0911ca4f685151ee6b575d04c3ae287"></a><!-- doxytag: member="pdc.h::pdc_translatePtr" ref="e0911ca4f685151ee6b575d04c3ae287" args="(void *pointerAddr)" -->
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          <td class="memname">void* pdc_translatePtr           </td>
          <td>(</td>
          <td class="paramtype">void *&nbsp;</td>
          <td class="paramname"> <em>pointerAddr</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Translates memory addresses from P1, P2, P3 and P4 memory space to the P0 memory space. This function is only valid if the MMU is not used. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>pointerAddr</em>&nbsp;</td><td>address to the pointer which shall be translated</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>translated address </dd></dl>

<p>
Definition at line <a class="el" href="pdc_8c-source.html#l00333">333</a> of file <a class="el" href="pdc_8c-source.html">pdc.c</a>.
<p>
Referenced by <a class="el" href="usart__example3_8c-source.html#l00047">main()</a>, and <a class="el" href="usart__example3_8c-source.html#l00030">usart_int_handler()</a>.<div class="fragment"><pre class="fragment"><a name="l00334"></a>00334 {
<a name="l00335"></a>00335         <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> returnAddress = (<span class="keywordtype">unsigned</span> long) pointerAddr;
<a name="l00336"></a>00336 
<a name="l00337"></a>00337         <span class="comment">/* Mapping between virtual address and physical address when the</span>
<a name="l00338"></a>00338 <span class="comment">         * MCU has been reset, and the MMU is not being used, is done by</span>
<a name="l00339"></a>00339 <span class="comment">         * clearing MSB in the memory address.</span>
<a name="l00340"></a>00340 <span class="comment">         *</span>
<a name="l00341"></a>00341 <span class="comment">         * For more details conserning the MMU see application note</span>
<a name="l00342"></a>00342 <span class="comment">         * AVR32113 Configuration and Use of the Memory Managment Unit.</span>
<a name="l00343"></a>00343 <span class="comment">         */</span>
<a name="l00344"></a>00344         returnAddress &amp;= ~(0x80000000);
<a name="l00345"></a>00345 
<a name="l00346"></a>00346         <span class="keywordflow">return</span> (<span class="keywordtype">void</span> *) returnAddress;
<a name="l00347"></a>00347 }
</pre></div>
<p>

</div>
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<a class="anchor" name="c0660b45db6f34dab2c2af12c4b196ab"></a><!-- doxytag: member="pdc.h::pdc_txBytesLeft" ref="c0660b45db6f34dab2c2af12c4b196ab" args="(void *dev)" -->
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          <td class="memname">int pdc_txBytesLeft           </td>
          <td>(</td>
          <td class="paramtype">void *&nbsp;</td>
          <td class="paramname"> <em>dev</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td width="100%"></td>
        </tr>
      </table>
</div>
<div class="memdoc">

<p>
Check total remaining size of the transmit buffers. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>dev</em>&nbsp;</td><td>pointer to the base memory address of the device</td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>total number of free bytes remaining in the transmit buffers </dd></dl>

<p>
Definition at line <a class="el" href="pdc_8c-source.html#l00295">295</a> of file <a class="el" href="pdc_8c-source.html">pdc.c</a>.<div class="fragment"><pre class="fragment"><a name="l00296"></a>00296 {
<a name="l00297"></a>00297         <span class="keywordtype">int</span> bytes = 0;
<a name="l00298"></a>00298         bytes += ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tcr;
<a name="l00299"></a>00299         bytes += ((<span class="keyword">struct </span><a class="code" href="structperipheral__t.html">peripheral_t</a> *)dev)-&gt;tncr;
<a name="l00300"></a>00300 
<a name="l00301"></a>00301         <span class="keywordflow">return</span> bytes;
<a name="l00302"></a>00302 }
</pre></div>
<p>

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