doc/doxygen/html/pdo_8c.html
author nico
Wed, 06 Jun 2007 09:11:29 +0200
changeset 211 2a4c2ca03555
parent 210 6b5a4c21e061
child 215 f49e5a6b7804
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Manual and Documentation finish
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<h1>/home/epimerde/documents/tc11/CanFestival-3/src/pdo.c File Reference</h1><code>#include &quot;pdo.h&quot;</code><br>
<code>#include &quot;objacces.h&quot;</code><br>
<code>#include &quot;canfestival.h&quot;</code><br>

<p>
Include dependency graph for pdo.c:<p><center><img src="pdo_8c__incl.png" border="0" usemap="#/home/epimerde/documents/tc11/CanFestival-3/src/pdo.c_map" alt=""></center>

<p>
<a href="pdo_8c-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">UNS8&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pdo_8c.html#d9a4a4f0a4ef48866c6184ccbd30f210">sendPDO</a> (CO_Data *d, s_PDO pdo, UNS8 req)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">UNS8&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pdo_8c.html#298b8291fa35cca22264cf8a70bf138a">PDOmGR</a> (CO_Data *d, UNS32 cobId)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">UNS8&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pdo_8c.html#cc08547009d3d2755d2291999941694c">sendPDOrequest</a> (CO_Data *d, UNS32 cobId)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">UNS8&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pdo_8c.html#ae7d661cd3ef7adf93a0d08fdb15b7f2">proceedPDO</a> (CO_Data *d, Message *m)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="pdo_8c.html#e468510c9f77f502207d961d26389918">CopyBits</a> (UNS8 NbBits, UNS8 *SrcByteIndex, UNS8 SrcBitIndex, UNS8 SrcBigEndian, UNS8 *DestByteIndex, UNS8 DestBitIndex, UNS8 DestBigEndian)</td></tr>

</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
<dl class="author" compact><dt><b>Author:</b></dt><dd>Edouard TISSERANT and Francis DUPIN </dd></dl>
<dl class="date" compact><dt><b>Date:</b></dt><dd>Tue Jun 5 09:32:32 2007 </dd></dl>

<p>
Definition in file <a class="el" href="pdo_8c-source.html">pdo.c</a>.<hr><h2>Function Documentation</h2>
<a class="anchor" name="e468510c9f77f502207d961d26389918"></a><!-- doxytag: member="pdo.c::CopyBits" ref="e468510c9f77f502207d961d26389918" args="(UNS8 NbBits, UNS8 *SrcByteIndex, UNS8 SrcBitIndex, UNS8 SrcBigEndian, UNS8 *DestByteIndex, UNS8 DestBitIndex, UNS8 DestBigEndian)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
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          <td class="memname">void CopyBits           </td>
          <td>(</td>
          <td class="paramtype">UNS8&nbsp;</td>
          <td class="paramname"> <em>NbBits</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS8 *&nbsp;</td>
          <td class="paramname"> <em>SrcByteIndex</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS8&nbsp;</td>
          <td class="paramname"> <em>SrcBitIndex</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS8&nbsp;</td>
          <td class="paramname"> <em>SrcBigEndian</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS8 *&nbsp;</td>
          <td class="paramname"> <em>DestByteIndex</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS8&nbsp;</td>
          <td class="paramname"> <em>DestBitIndex</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS8&nbsp;</td>
          <td class="paramname"> <em>DestBigEndian</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>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>NbBits</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>SrcByteIndex</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>SrcBitIndex</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>SrcBigEndian</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>DestByteIndex</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>DestBitIndex</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>DestBigEndian</em>&nbsp;</td><td></td></tr>
  </table>
</dl>

<p>
This loop copy as many bits that it can each time, crossing<p>
successively bytes<p>
Bit missalignement between src and dest<p>
We can now get src and align it to dest<p>
Compute the nb of bit we will be able to copy<p>
Create a mask that will serve in:<p>
<ul>
<li>Filtering src</li></ul>
<p>
<ul>
<li>and erase bits where we write, preserve where we don't</li></ul>
<p>
Then write.<p>
Compute next time cursors for src<p>
cross boundary ?<p>
First bit<p>
Next byte<p>
Compute next time cursors for dest<p>
First bit<p>
Next byte<p>
And decrement counter. 
<p>
Definition at line <a class="el" href="pdo_8c-source.html#l00430">430</a> of file <a class="el" href="pdo_8c-source.html">pdo.c</a>.
<p>
Referenced by <a class="el" href="pdo_8c-source.html#l00221">proceedPDO()</a>, and <a class="el" href="sync_8c-source.html#l00141">proceedSYNC()</a>.
</div>
</div><p>
<a class="anchor" name="298b8291fa35cca22264cf8a70bf138a"></a><!-- doxytag: member="pdo.c::PDOmGR" ref="298b8291fa35cca22264cf8a70bf138a" args="(CO_Data *d, UNS32 cobId)" -->
<div class="memitem">
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      <table class="memname">
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          <td class="memname">UNS8 PDOmGR           </td>
          <td>(</td>
          <td class="paramtype">CO_Data *&nbsp;</td>
          <td class="paramname"> <em>d</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS32&nbsp;</td>
          <td class="paramname"> <em>cobId</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>
PDO Manager<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>d</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>cobId</em>&nbsp;</td><td></td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>

<p>
if PDO is waiting for transmission, preparation of the message to send<p>
memcpy(&amp;(pdo.data), &amp;(process_var.data), pdo.len); 
<p>
Definition at line <a class="el" href="pdo_8c-source.html#l00079">79</a> of file <a class="el" href="pdo_8c-source.html">pdo.c</a>.
<p>
References <a class="el" href="pdo_8c-source.html#l00037">sendPDO()</a>.
<p>
Referenced by <a class="el" href="pdo_8c-source.html#l00221">proceedPDO()</a>, and <a class="el" href="sync_8c-source.html#l00141">proceedSYNC()</a>.
<p>
Here is the call graph for this function:<p><center><img src="pdo_8c_298b8291fa35cca22264cf8a70bf138a_cgraph.png" border="0" usemap="#pdo_8c_298b8291fa35cca22264cf8a70bf138a_cgraph_map" alt=""></center>
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</div><p>
<a class="anchor" name="ae7d661cd3ef7adf93a0d08fdb15b7f2"></a><!-- doxytag: member="pdo.c::proceedPDO" ref="ae7d661cd3ef7adf93a0d08fdb15b7f2" args="(CO_Data *d, Message *m)" -->
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      <table class="memname">
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          <td class="memname">UNS8 proceedPDO           </td>
          <td>(</td>
          <td class="paramtype">CO_Data *&nbsp;</td>
          <td class="paramname"> <em>d</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">Message *&nbsp;</td>
          <td class="paramname"> <em>m</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>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>d</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>m</em>&nbsp;</td><td></td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>

<p>
Number of the mapped varable<p>
count of mapped objects...<p>
pointer to the var which is mapped to a pdo...<p>
void * pMappedAppObject = NULL;<p>
pointer fo the var which holds the mapping parameter of an mapping entry<p>
pointer to the transmission type<p>
The PDO received is not a request.<p>
study of all the PDO stored in the dictionary<p>
data are stored in process_var array<p>
memcpy(&amp;(process_var.data), &amp;m-&gt;data, (*m).len);<p>
Ce memcpy devrait etre portable<p>
get CobId of the dictionary correspondant to the received PDO<p>
check the CobId coherance<p>
pwCobId is the cobId read in the dictionary at the state 3<p>
The cobId is recognized<p>
cobId received does not match with those write in the dictionnary<p>
Get Mapped Objects Number<p>
The cobId of the message received has been found in the dictionnary.<p>
Get the addresse of the mapped variable.<p>
detail of *pMappingParameter :<p>
The 16 hight bits contains the index, the medium 8 bits contains the subindex,<p>
and the lower 8 bits contains the size of the mapped variable.<p>
copy bit per bit in little endian<p>
MSG_WAR(0x3945, "                data : ",*((UNS32*)pMappedAppObject));<p>
end loop while on mapped variables<p>
end switch status<p>
end while<p>
end if Donnees<p>
study of all PDO stored in the objects dictionary<p>
check the CobId<p>
get CobId of the dictionary which match to the received PDO<p>
check transmission type (after request?)<p>
The requested PDO is not to send on request. So, does nothing.<p>
get mapped objects number<p>
Get the mapped variable<p>
end while<p>
Transmit the PDO<p>
end switch status<p>
end while<p>
end if Requete 
<p>
Definition at line <a class="el" href="pdo_8c-source.html#l00221">221</a> of file <a class="el" href="pdo_8c-source.html">pdo.c</a>.
<p>
References <a class="el" href="pdo_8c-source.html#l00430">CopyBits()</a>, <a class="el" href="objacces_8c-source.html#l00198">getODentry()</a>, <a class="el" href="pdo_8c-source.html#l00079">PDOmGR()</a>, and <a class="el" href="objacces_8c-source.html#l00350">setODentry()</a>.
<p>
Referenced by <a class="el" href="states_8c-source.html#l00065">canDispatch()</a>.
<p>
Here is the call graph for this function:<p><center><img src="pdo_8c_ae7d661cd3ef7adf93a0d08fdb15b7f2_cgraph.png" border="0" usemap="#pdo_8c_ae7d661cd3ef7adf93a0d08fdb15b7f2_cgraph_map" alt=""></center>
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</div>
</div><p>
<a class="anchor" name="d9a4a4f0a4ef48866c6184ccbd30f210"></a><!-- doxytag: member="pdo.c::sendPDO" ref="d9a4a4f0a4ef48866c6184ccbd30f210" args="(CO_Data *d, s_PDO pdo, UNS8 req)" -->
<div class="memitem">
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          <td class="memname">UNS8 sendPDO           </td>
          <td>(</td>
          <td class="paramtype">CO_Data *&nbsp;</td>
          <td class="paramname"> <em>d</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">s_PDO&nbsp;</td>
          <td class="paramname"> <em>pdo</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS8&nbsp;</td>
          <td class="paramname"> <em>req</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>

<p>
Definition at line <a class="el" href="pdo_8c-source.html#l00037">37</a> of file <a class="el" href="pdo_8c-source.html">pdo.c</a>.
<p>
Referenced by <a class="el" href="pdo_8c-source.html#l00079">PDOmGR()</a>, and <a class="el" href="pdo_8c-source.html#l00181">sendPDOrequest()</a>.
</div>
</div><p>
<a class="anchor" name="cc08547009d3d2755d2291999941694c"></a><!-- doxytag: member="pdo.c::sendPDOrequest" ref="cc08547009d3d2755d2291999941694c" args="(CO_Data *d, UNS32 cobId)" -->
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">UNS8 sendPDOrequest           </td>
          <td>(</td>
          <td class="paramtype">CO_Data *&nbsp;</td>
          <td class="paramname"> <em>d</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">UNS32&nbsp;</td>
          <td class="paramname"> <em>cobId</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>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>d</em>&nbsp;</td><td></td></tr>
    <tr><td valign="top"></td><td valign="top"><em>cobId</em>&nbsp;</td><td></td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd></dd></dl>

<p>
Sending the request only if the cobid have been found on the PDO receive<p>
part dictionary<p>
get the CobId 
<p>
Definition at line <a class="el" href="pdo_8c-source.html#l00181">181</a> of file <a class="el" href="pdo_8c-source.html">pdo.c</a>.
<p>
References <a class="el" href="pdo_8c-source.html#l00037">sendPDO()</a>.
<p>
Here is the call graph for this function:<p><center><img src="pdo_8c_cc08547009d3d2755d2291999941694c_cgraph.png" border="0" usemap="#pdo_8c_cc08547009d3d2755d2291999941694c_cgraph_map" alt=""></center>
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</div>
</div><p>
<hr size="1"><address style="align: right;"><small>Generated on Tue Jun 5 18:32:07 2007 for CanFestival by&nbsp;
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