ARM-software
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   &#160;<span id="projectnumber">Version 2.8.0</span>
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   <div id="projectbrief">Peripheral Interface for Middleware and Application Code</div>
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<p>Control functions for the WiFi module.  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a>
Content</h2></td></tr>
<tr class="memitem:group__wifi__event"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__event.html">WiFi Events</a></td></tr>
<tr class="memdesc:group__wifi__event"><td class="mdescLeft">&#160;</td><td class="mdescRight">The WiFi driver generates call back events that are notified via the function <a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a>. <br/></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:structARM__WIFI__CAPABILITIES"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#structARM__WIFI__CAPABILITIES">ARM_WIFI_CAPABILITIES</a></td></tr>
<tr class="memdesc:structARM__WIFI__CAPABILITIES"><td class="mdescLeft">&#160;</td><td class="mdescRight">WiFi Driver Capabilities.  <a href="group__wifi__control__gr.html#structARM__WIFI__CAPABILITIES">More...</a><br/></td></tr>
<tr class="separator:structARM__WIFI__CAPABILITIES"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:gac0f04bbdd431c87a680626154c3e0a41"><td class="memItemLeft" align="right" valign="top">typedef void(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#gac0f04bbdd431c87a680626154c3e0a41">ARM_WIFI_SignalEvent_t</a> )(uint32_t event, void *arg)</td></tr>
<tr class="memdesc:gac0f04bbdd431c87a680626154c3e0a41"><td class="mdescLeft">&#160;</td><td class="mdescRight">Pointer to <a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a> : Signal WiFi Event.  <a href="#gac0f04bbdd431c87a680626154c3e0a41">More...</a><br/></td></tr>
<tr class="separator:gac0f04bbdd431c87a680626154c3e0a41"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gad349fb835926a508e2a33501c0dff6a2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__common__drv__gr.html#structARM__DRIVER__VERSION">ARM_DRIVER_VERSION</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#gad349fb835926a508e2a33501c0dff6a2">ARM_WIFI_GetVersion</a> (void)</td></tr>
<tr class="memdesc:gad349fb835926a508e2a33501c0dff6a2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get driver version.  <a href="#gad349fb835926a508e2a33501c0dff6a2">More...</a><br/></td></tr>
<tr class="separator:gad349fb835926a508e2a33501c0dff6a2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga3496996799a4762e9958a8b6af683b4b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__wifi__control__gr.html#structARM__WIFI__CAPABILITIES">ARM_WIFI_CAPABILITIES</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#ga3496996799a4762e9958a8b6af683b4b">ARM_WIFI_GetCapabilities</a> (void)</td></tr>
<tr class="memdesc:ga3496996799a4762e9958a8b6af683b4b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get driver capabilities.  <a href="#ga3496996799a4762e9958a8b6af683b4b">More...</a><br/></td></tr>
<tr class="separator:ga3496996799a4762e9958a8b6af683b4b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gadc4b9aaae0fdf7d489b1d81e3c2f3474"><td class="memItemLeft" align="right" valign="top">int32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#gadc4b9aaae0fdf7d489b1d81e3c2f3474">ARM_WIFI_Initialize</a> (<a class="el" href="group__wifi__control__gr.html#gac0f04bbdd431c87a680626154c3e0a41">ARM_WIFI_SignalEvent_t</a> cb_event)</td></tr>
<tr class="memdesc:gadc4b9aaae0fdf7d489b1d81e3c2f3474"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initialize WiFi Module.  <a href="#gadc4b9aaae0fdf7d489b1d81e3c2f3474">More...</a><br/></td></tr>
<tr class="separator:gadc4b9aaae0fdf7d489b1d81e3c2f3474"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae1e488d4ecc365e30712e6b1711a9c5d"><td class="memItemLeft" align="right" valign="top">int32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#gae1e488d4ecc365e30712e6b1711a9c5d">ARM_WIFI_Uninitialize</a> (void)</td></tr>
<tr class="memdesc:gae1e488d4ecc365e30712e6b1711a9c5d"><td class="mdescLeft">&#160;</td><td class="mdescRight">De-initialize WiFi Module.  <a href="#gae1e488d4ecc365e30712e6b1711a9c5d">More...</a><br/></td></tr>
<tr class="separator:gae1e488d4ecc365e30712e6b1711a9c5d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga48d4cb7c00e96d2b928cc4468d4e623b"><td class="memItemLeft" align="right" valign="top">int32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#ga48d4cb7c00e96d2b928cc4468d4e623b">ARM_WIFI_PowerControl</a> (<a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a> state)</td></tr>
<tr class="memdesc:ga48d4cb7c00e96d2b928cc4468d4e623b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Control WiFi Module Power.  <a href="#ga48d4cb7c00e96d2b928cc4468d4e623b">More...</a><br/></td></tr>
<tr class="separator:ga48d4cb7c00e96d2b928cc4468d4e623b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gabdc4c9966a3f22ac6e53119e71e67579"><td class="memItemLeft" align="right" valign="top">int32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#gabdc4c9966a3f22ac6e53119e71e67579">ARM_WIFI_GetModuleInfo</a> (char *module_info, uint32_t max_len)</td></tr>
<tr class="memdesc:gabdc4c9966a3f22ac6e53119e71e67579"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get Module information.  <a href="#gabdc4c9966a3f22ac6e53119e71e67579">More...</a><br/></td></tr>
<tr class="separator:gabdc4c9966a3f22ac6e53119e71e67579"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga0c8243dee4bb161132692516f048bcec"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a> (uint32_t event, void *arg)</td></tr>
<tr class="memdesc:ga0c8243dee4bb161132692516f048bcec"><td class="mdescLeft">&#160;</td><td class="mdescRight">Signal WiFi Events.  <a href="#ga0c8243dee4bb161132692516f048bcec">More...</a><br/></td></tr>
<tr class="separator:ga0c8243dee4bb161132692516f048bcec"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p>Control functions for the WiFi module. </p>
<p>The <a class="el" href="group__wifi__control__gr.html">WiFi Control</a> functions setup and control the WiFi module. </p>
<hr/><h2 class="groupheader">Data Structure Documentation</h2>
<a name="structARM__WIFI__CAPABILITIES" id="structARM__WIFI__CAPABILITIES"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
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          <td class="memname">struct ARM_WIFI_CAPABILITIES</td>
        </tr>
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</div><div class="memdoc">
<div class="textblock"><p>WiFi Driver Capabilities. </p>
<p>A WiFi driver can be implemented with different capabilities. The data fields of this structure encode the capabilities implemented by this driver.</p>
<p><b>Returned by:</b></p>
<ul>
<li><a class="el" href="group__wifi__control__gr.html#ga3496996799a4762e9958a8b6af683b4b">ARM_WIFI_GetCapabilities</a> </li>
</ul>
</div><table class="fieldtable">
<tr><th colspan="3">Data Fields</th></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a3c9e76f6560429efd6dcc41ffd4b67b9"></a>uint32_t</td>
<td class="fieldname">
station: 1</td>
<td class="fielddoc">
Station. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="ae980bcb85233b9c5904072246ac71dd7"></a>uint32_t</td>
<td class="fieldname">
ap: 1</td>
<td class="fielddoc">
Access Point. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="ad280904e2429375205c09e53fe8cdcb1"></a>uint32_t</td>
<td class="fieldname">
station_ap: 1</td>
<td class="fielddoc">
Concurrent Station and Access Point. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a87476544767703fc9f45f81b16cd4429"></a>uint32_t</td>
<td class="fieldname">
wps_station: 1</td>
<td class="fielddoc">
WiFi Protected Setup (WPS) for Station. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a7689c7dd824016b1962854a86d23d141"></a>uint32_t</td>
<td class="fieldname">
wps_ap: 1</td>
<td class="fielddoc">
WiFi Protected Setup (WPS) for Access Point. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a9fc191093a9bc356c3d85e9cbf185620"></a>uint32_t</td>
<td class="fieldname">
event_ap_connect: 1</td>
<td class="fielddoc">
Access Point: event generated on Station connect. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a18a7e7fe3a4f48548af6db6c825cc427"></a>uint32_t</td>
<td class="fieldname">
event_ap_disconnect: 1</td>
<td class="fielddoc">
Access Point: event generated on Station disconnect. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="ac4c6eadec013cf8a11b8eca66b809431"></a>uint32_t</td>
<td class="fieldname">
event_eth_rx_frame: 1</td>
<td class="fielddoc">
Event generated on Ethernet frame reception in bypass mode. </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="adbcc47408fb8c50d262a3be535108186"></a>uint32_t</td>
<td class="fieldname">
bypass_mode: 1</td>
<td class="fielddoc">
Bypass or pass-through mode (Ethernet interface) </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="a69ddb9c845da426f636d9dd0dbed4e7e"></a>uint32_t</td>
<td class="fieldname">
ip: 1</td>
<td class="fielddoc">
IP (UDP/TCP) (Socket interface) </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="aad13478539ad093fabafd1804acac4a2"></a>uint32_t</td>
<td class="fieldname">
ip6: 1</td>
<td class="fielddoc">
IPv6 (Socket interface) </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="aef01bbaa48bdb4fba71684d8f31eb0b1"></a>uint32_t</td>
<td class="fieldname">
ping: 1</td>
<td class="fielddoc">
Ping (ICMP) </td></tr>
<tr><td class="fieldtype">
<a class="anchor" id="aa43c4c21b173ada1b6b7568956f0d650"></a>uint32_t</td>
<td class="fieldname">
reserved: 20</td>
<td class="fielddoc">
Reserved (must be zero) </td></tr>
</table>

</div>
</div>
<h2 class="groupheader">Typedef Documentation</h2>
<a class="anchor" id="gac0f04bbdd431c87a680626154c3e0a41"></a>
<div class="memitem">
<div class="memproto">
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          <td class="memname">ARM_WIFI_SignalEvent_t</td>
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</div><div class="memdoc">

<p>Pointer to <a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a> : Signal WiFi Event. </p>
<p>Provides the typedef for the callback function <a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a>.</p>
<p><b>Parameter for:</b></p>
<ul>
<li><a class="el" href="group__wifi__control__gr.html#gadc4b9aaae0fdf7d489b1d81e3c2f3474">ARM_WIFI_Initialize</a> </li>
</ul>

</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="gad349fb835926a508e2a33501c0dff6a2"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname"><a class="el" href="group__common__drv__gr.html#structARM__DRIVER__VERSION">ARM_DRIVER_VERSION</a> ARM_WIFI_GetVersion </td>
          <td>(</td>
          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Get driver version. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__common__drv__gr.html#structARM__DRIVER__VERSION">ARM_DRIVER_VERSION</a></dd></dl>
<p>The function <b>ARM_WIFI_GetVersion</b> returns version information of the driver implementation in <a class="el" href="group__common__drv__gr.html#structARM__DRIVER__VERSION">ARM_DRIVER_VERSION</a>.</p>
<p>API version is the version of the CMSIS-Driver specification used to implement this driver. Driver version is source code version of the actual driver implementation.</p>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> Driver_WiFi0;</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> *wifi;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> get_wifi_version (<span class="keywordtype">void</span>)  {</div>
<div class="line">  <a class="code" href="group__common__drv__gr.html#structARM__DRIVER__VERSION">ARM_DRIVER_VERSION</a> version;</div>
<div class="line"> </div>
<div class="line">  wifi= &amp;Driver_WiFi0;  </div>
<div class="line">  version = wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#a8834b281da48583845c044a81566c1b3">GetVersion</a> ();</div>
<div class="line">  <span class="keywordflow">if</span> (version.<a class="code" href="group__common__drv__gr.html#ad180da20fbde1d3dafc074af87c19540">api</a> &lt; 0x100U) {        <span class="comment">// requires at minimum API version 1.0 or higher</span></div>
<div class="line">    <span class="comment">// error handling</span></div>
<div class="line">    <span class="keywordflow">return</span>;</div>
<div class="line">  }</div>
<div class="line">}</div>
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          <td class="memname"><a class="el" href="group__wifi__control__gr.html#structARM__WIFI__CAPABILITIES">ARM_WIFI_CAPABILITIES</a> ARM_WIFI_GetCapabilities </td>
          <td>(</td>
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<p>Get driver capabilities. </p>
<dl class="section return"><dt>Returns</dt><dd><a class="el" href="group__wifi__control__gr.html#structARM__WIFI__CAPABILITIES">ARM_WIFI_CAPABILITIES</a></dd></dl>
<p>The function <b>ARM_WIFI_GetCapabilities</b> retrieves information about capabilities in this driver implementation. The data fields of the struct <a class="el" href="group__wifi__control__gr.html#structARM__WIFI__CAPABILITIES">ARM_WIFI_CAPABILITIES</a> encode various capabilities, for example if a WiFi module supports the Access Point mode or the bypass mode, or is capable to signal events using the <a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a> callback function.</p>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> Driver_WiFi0;</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> *wifi;</div>
<div class="line">  </div>
<div class="line"><span class="keywordtype">void</span> get_wifi_capabilities (<span class="keywordtype">void</span>)  {</div>
<div class="line">  <a class="code" href="group__wifi__control__gr.html#structARM__WIFI__CAPABILITIES">ARM_WIFI_CAPABILITIES</a> capabilities;</div>
<div class="line"> </div>
<div class="line">  wifi = &amp;Driver_WiFi0;  </div>
<div class="line">  capabilities = wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#a1ced805656e067b5635f1af2292b69e1">GetCapabilities</a> ();</div>
<div class="line">  <span class="comment">// interrogate capabilities</span></div>
<div class="line">   :</div>
<div class="line">}</div>
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          <td class="memname">int32_t ARM_WIFI_Initialize </td>
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          <td class="paramtype"><a class="el" href="group__wifi__control__gr.html#gac0f04bbdd431c87a680626154c3e0a41">ARM_WIFI_SignalEvent_t</a>&#160;</td>
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<p>Initialize WiFi Module. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">cb_event</td><td>Pointer to <a class="el" href="group__wifi__control__gr.html#gac0f04bbdd431c87a680626154c3e0a41">ARM_WIFI_SignalEvent_t</a> </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="group__execution__status.html#ga85752c5de59e8adeb001e35ff5be6be7">ARM_DRIVER_OK</a> : Operation successful</li>
<li><a class="el" href="group__execution__status.html#ga2f627075447749bb368d3b768be107cb">ARM_DRIVER_ERROR</a> : Operation failed</li>
</ul>
</dd></dl>
<p>The function <b>ARM_WIFI_Initialize</b> initializes the WiFi module.</p>
<p>It is called when the middleware component starts operation.</p>
<p>The <a class="el" href="group__wifi__control__gr.html#gadc4b9aaae0fdf7d489b1d81e3c2f3474">ARM_WIFI_Initialize</a> function performs the following operations:</p>
<ul>
<li>Initializes the resources and peripherals required for the WiFi module.</li>
<li>Registers the <a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a> callback function.</li>
</ul>
<p>The parameter <em>cb_event</em> is a pointer to the <a class="el" href="group__wifi__control__gr.html#ga0c8243dee4bb161132692516f048bcec">ARM_WIFI_SignalEvent</a> callback function; use a <span class="XML-Token">NULL</span> pointer when no callback signals are required.</p>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> Driver_WiFi0;</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> *wifi;</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="group__eth__interface__gr.html#structARM__ETH__MAC__ADDR">ARM_ETH_MAC_ADDR</a> own_mac_address;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> initialize_wifi (<span class="keywordtype">void</span>) {</div>
<div class="line">  wifi = &amp;Driver_WiFi0;</div>
<div class="line"> </div>
<div class="line">  <span class="comment">// Initialize and Power-on WiFi Module</span></div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#a99e597db8e61d0ff834561cb710e61ad">Initialize</a> (NULL);</div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#aba8f1c8019af95ffe19c32403e3240ef">PowerControl</a> (<a class="code" href="Driver__Common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5abed52b77a9ce4775570e44a842b1295e">ARM_POWER_FULL</a>);</div>
<div class="line"> </div>
<div class="line">  <span class="comment">// Populate own_mac_address with the address to use</span></div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#a6b5e1c7fcea96ff13f6fd16d57c8b68f">SetOption</a>(<a class="code" href="group__WiFi__option.html#gafefb0fe1e5cdfb71f7f8cc7606840865">ARM_WIFI_MAC</a>, &amp;own_mac_address, 6U);</div>
<div class="line">}</div>
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          <td class="memname">int32_t ARM_WIFI_Uninitialize </td>
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          <td class="paramtype">void&#160;</td>
          <td class="paramname"></td><td>)</td>
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<p>De-initialize WiFi Module. </p>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="group__execution__status.html#ga85752c5de59e8adeb001e35ff5be6be7">ARM_DRIVER_OK</a> : Operation successful</li>
<li><a class="el" href="group__execution__status.html#ga2f627075447749bb368d3b768be107cb">ARM_DRIVER_ERROR</a> : Operation failed</li>
</ul>
</dd></dl>
<p>The function <b>ARM_WIFI_Uninitialize</b> de-initializes the resources of the WiFi module.</p>
<p>It is called when the middleware component stops operation and releases the software resources used by the module.</p>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> Driver_WiFi0;</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> *wifi;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> uninitialize_wifi (<span class="keywordtype">void</span>) {</div>
<div class="line">  wifi = &amp;Driver_WiFi0;</div>
<div class="line"> </div>
<div class="line">  <span class="comment">// Power off and De-initialize WiFi Module</span></div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#aba8f1c8019af95ffe19c32403e3240ef">PowerControl</a> (<a class="code" href="Driver__Common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5ab6f5becc85ebd51c3dd2524a95d2ca35">ARM_POWER_OFF</a>);</div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#adcf20681a1402869ecb5c6447fada17b">Uninitialize</a> ();</div>
<div class="line">}</div>
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          <td class="memname">int32_t ARM_WIFI_PowerControl </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a>&#160;</td>
          <td class="paramname"><em>state</em></td><td>)</td>
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<p>Control WiFi Module Power. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">state</td><td>Power state<ul>
<li><a class="el" href="Driver__Common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5ab6f5becc85ebd51c3dd2524a95d2ca35">ARM_POWER_OFF</a> : Power off: no operation possible</li>
<li><a class="el" href="Driver__Common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5a9ef9e57cbcc948d0e22314e73dc8c434">ARM_POWER_LOW</a> : Low-power mode: sleep or deep-sleep depending on <a class="el" href="group__WiFi__option.html#ga77e38a3d5d2fe8c04aebaf8d24e1b8d4">ARM_WIFI_LP_TIMER</a> option set</li>
<li><a class="el" href="Driver__Common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5abed52b77a9ce4775570e44a842b1295e">ARM_POWER_FULL</a> : Power on: full operation at maximum performance </li>
</ul>
</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="group__execution__status.html#ga85752c5de59e8adeb001e35ff5be6be7">ARM_DRIVER_OK</a> : Operation successful</li>
<li><a class="el" href="group__execution__status.html#ga2f627075447749bb368d3b768be107cb">ARM_DRIVER_ERROR</a> : Operation failed</li>
<li><a class="el" href="group__execution__status.html#ga2efa59e480d82697795439220e6884e4">ARM_DRIVER_ERROR_UNSUPPORTED</a> : Operation not supported</li>
<li><a class="el" href="group__execution__status.html#gac781d4b70ce17c4c2efe2db045be751c">ARM_DRIVER_ERROR_PARAMETER</a> : Parameter error (invalid state)</li>
</ul>
</dd></dl>
<p>The function <b>ARM_WIFI_PowerControl</b> allows you to configure the power modes of the WiFi module.</p>
<p>The parameter <em>state</em> specifies the <a class="el" href="group__common__drv__gr.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5">ARM_POWER_STATE</a>.</p>
<p>Low-power mode depends on additional options set by <a class="el" href="group__wifi__management__gr.html#gaf38a7aeb470eec596febc850c8b69ccf">ARM_WIFI_SetOption</a> :</p>
<ul>
<li>Deep-sleep mode is entered when <a class="el" href="group__WiFi__option.html#ga77e38a3d5d2fe8c04aebaf8d24e1b8d4">ARM_WIFI_LP_TIMER</a> option is set to a value different than 0</li>
<li>Sleep mode is entered otherwise</li>
</ul>
<p><b>Deep-sleep</b> mode (only for station): Module turns off the radio and also internal CPU thus reducing power consumption to minimum, only the timer is running that wakes-up the module after specified time. When timer expires the module reconnects to the access point.</p>
<p>This mode is used when power consumption is a priority (battery powered devices) and when WiFi is used in short intervals that do not occur very often (example: sending a temperature from a sensor to a cloud every 10 seconds).</p>
<p><b>Sleep</b> mode (only for station): Module reduces power consumption by going into sleep and waking up periodically to listen for beacons.</p>
<p>Delivery Traffic Indication Message (DTIM) interval can be configured with option <a class="el" href="group__WiFi__option.html#ga947c297f1364993524bf515beba296f1">ARM_WIFI_DTIM</a> (station and access point) and beacon interval with option <a class="el" href="group__WiFi__option.html#ga6171d24c661b54465ced2dae7980897c">ARM_WIFI_BEACON</a> (only for access point).</p>
<p>Default module intervals are used when those options are not explicitly set.</p>
<p>If power <em>state</em> specifies an unsupported mode, the function returns <a class="el" href="group__execution__status.html#ga2efa59e480d82697795439220e6884e4">ARM_DRIVER_ERROR_UNSUPPORTED</a> as status information and the previous power state of the peripheral is unchanged. Multiple calls with the same <em>state</em> generate no error.</p>
<p><b>Example:</b> </p>
<ul>
<li>see <a class="el" href="group__wifi__control__gr.html#gadc4b9aaae0fdf7d489b1d81e3c2f3474">ARM_WIFI_Initialize</a></li>
<li>see <a class="el" href="group__wifi__control__gr.html#gae1e488d4ecc365e30712e6b1711a9c5d">ARM_WIFI_Uninitialize</a> </li>
</ul>

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          <td class="memname">int32_t ARM_WIFI_GetModuleInfo </td>
          <td>(</td>
          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>module_info</em>, </td>
        </tr>
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<p>Get Module information. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">module_info</td><td>Pointer to character buffer were info string will be returned </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">max_len</td><td>Maximum length of string to return (including null terminator) </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>execution status<ul>
<li><a class="el" href="group__execution__status.html#ga85752c5de59e8adeb001e35ff5be6be7">ARM_DRIVER_OK</a> : Operation successful</li>
<li><a class="el" href="group__execution__status.html#ga2f627075447749bb368d3b768be107cb">ARM_DRIVER_ERROR</a> : Operation failed</li>
<li><a class="el" href="group__execution__status.html#ga2efa59e480d82697795439220e6884e4">ARM_DRIVER_ERROR_UNSUPPORTED</a> : Operation not supported</li>
<li><a class="el" href="group__execution__status.html#gac781d4b70ce17c4c2efe2db045be751c">ARM_DRIVER_ERROR_PARAMETER</a> : Parameter error (NULL module_info pointer or max_len equals to 0)</li>
</ul>
</dd></dl>
<p>The function <b>ARM_WIFI_GetModuleInfo</b> retrieves string containing information about the WiFi module.</p>
<p>The information might include module name, firmware version, ...</p>
<dl class="section note"><dt>Note</dt><dd>Module must be initialized and powered before module information can be retrieved.</dd></dl>
<p><b>Example:</b> </p>
<div class="fragment"><div class="line"><span class="keyword">extern</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> Driver_WiFi0;</div>
<div class="line"><span class="keyword">static</span> <a class="code" href="group__wifi__interface__gr.html#structARM__DRIVER__WIFI">ARM_DRIVER_WIFI</a> *wifi;</div>
<div class="line"> </div>
<div class="line"><span class="keywordtype">void</span> initialize_wifi (<span class="keywordtype">void</span>) {</div>
<div class="line">  <span class="keywordtype">char</span> info[32];</div>
<div class="line"> </div>
<div class="line">  wifi = &amp;Driver_WiFi0;</div>
<div class="line"> </div>
<div class="line">  <span class="comment">// Initialize and Power-on WiFi Module</span></div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#a99e597db8e61d0ff834561cb710e61ad">Initialize</a> (NULL);</div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#aba8f1c8019af95ffe19c32403e3240ef">PowerControl</a> (<a class="code" href="Driver__Common_8h.html#ga47d6d7c31f88f3b8ae4aaf9d8444afa5abed52b77a9ce4775570e44a842b1295e">ARM_POWER_FULL</a>);</div>
<div class="line"> </div>
<div class="line">  <span class="comment">// Retrieve module information</span></div>
<div class="line">  wifi-&gt;<a class="code" href="group__wifi__interface__gr.html#aa78e745bbf8257a3438700e4e6a8d222">GetModuleInfo</a>(&amp;info, <span class="keyword">sizeof</span>(info));</div>
<div class="line">}</div>
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          <td class="memname">void ARM_WIFI_SignalEvent </td>
          <td>(</td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>event</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
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          <td class="paramname"><em>arg</em>&#160;</td>
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<p>Signal WiFi Events. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">event</td><td><a class="el" href="group__wifi__event.html">WiFi Events</a> notification mask </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">arg</td><td>Pointer to argument of signaled event </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
<p>The function <b>ARM_WIFI_SignalEvent</b> is a callback function registered by the function <a class="el" href="group__wifi__control__gr.html#gadc4b9aaae0fdf7d489b1d81e3c2f3474">ARM_WIFI_Initialize</a>. It is called by the WiFi driver to notify the application about WiFi Events occurred during operation.</p>
<p>The parameter <em>event</em> indicates the event that occurred during driver operation.</p>
<p>The parameter <em>arg</em> provides additional information about the event.</p>
<p>The following events can be generated:</p>
<table class="doxtable">
<tr>
<th align="left">Parameter <em>event</em> </th><th align="left">Description  </th></tr>
<tr>
<td align="left"><a class="el" href="group__wifi__event.html#ga4a87b9a3c3a404e3917d54df98469a62">ARM_WIFI_EVENT_AP_CONNECT</a> </td><td align="left">Occurs in access point mode when a station has connected to the access point. </td></tr>
<tr>
<td align="left"><a class="el" href="group__wifi__event.html#ga271e73cda122e7ec3c5a5ca71d44eae3">ARM_WIFI_EVENT_AP_DISCONNECT</a> </td><td align="left">Occurs in access point mode when a station has disconnected from the access point. </td></tr>
<tr>
<td align="left"><a class="el" href="group__wifi__event.html#ga833f2c7a47bd2523d7a62ff6506a997f">ARM_WIFI_EVENT_ETH_RX_FRAME</a> </td><td align="left">Occurs in <a class="el" href="group__wifi__bypass__gr.html">WiFi Bypass Mode</a> when an ethernet frame is received. </td></tr>
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