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18 KiB
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378 lines
18 KiB
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<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
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xwdtps.c File Reference
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<link href="$DriverApiDocsCssPath" rel="stylesheet" type="text/css">
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</head>
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<h3 class="PageHeader">Xilinx Processor IP Library</h3>
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<hl>Software Drivers</hl>
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<hr class="whs1">
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<!-- Generated by Doxygen 1.4.5 -->
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<div class="tabs">
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<ul>
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<li><a href="index.html"><span>Main Page</span></a></li>
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<li><a href="annotated.html"><span>Classes</span></a></li>
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<li id="current"><a href="files.html"><span>Files</span></a></li>
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</ul></div>
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<div class="tabs">
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<ul>
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<li><a href="files.html"><span>File List</span></a></li>
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<li><a href="globals.html"><span>File Members</span></a></li>
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</ul></div>
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<h1>xwdtps.c File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
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Contains the implementation of interface functions of the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> driver. See xwdtps.h for a description of the driver.<p>
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<pre>
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MODIFICATION HISTORY:</pre><p>
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<pre> Ver Who Date Changes
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----- ------ -------- ---------------------------------------------
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1.00a ecm/jz 01/15/10 First release
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1.02a sg 07/15/12 Removed code/APIs related to External Signal
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Length functionality for CR 658287
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Removed APIs XWdtPs_SetExternalSignalLength,
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XWdtPs_GetExternalSignalLength
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</pre>
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<p>
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<code>#include "xwdtps.h"</code><br>
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<table border="0" cellpadding="0" cellspacing="0">
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<tr><td></td></tr>
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<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="xwdtps_8c.html#889287e92c71f81b818f20cc379f17c4">XWdtPs_CfgInitialize</a> (<a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> *InstancePtr, <a class="el" href="struct_x_wdt_ps___config.html">XWdtPs_Config</a> *ConfigPtr, u32 EffectiveAddress)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xwdtps_8c.html#a4f0f004c19c03180181cecc1d3d2bf7">XWdtPs_Start</a> (<a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> *InstancePtr)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xwdtps_8c.html#cf8b9d633bdfd73c2dc30200168ef98e">XWdtPs_Stop</a> (<a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> *InstancePtr)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xwdtps_8c.html#0eff5cec124391803a4b752ba11390d8">XWdtPs_EnableOutput</a> (<a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> *InstancePtr, u8 Signal)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xwdtps_8c.html#b6535cd28548eb51dda4435160ca7234">XWdtPs_DisableOutput</a> (<a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> *InstancePtr, u8 Signal)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">u32 </td><td class="memItemRight" valign="bottom"><a class="el" href="xwdtps_8c.html#7a5a2fcf6583a74558d9e56a3920b86e">XWdtPs_GetControlValue</a> (<a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> *InstancePtr, u8 Control)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="xwdtps_8c.html#a1540280195d87bf0670fce975f415ba">XWdtPs_SetControlValue</a> (<a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> *InstancePtr, u8 Control, u32 Value)</td></tr>
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</table>
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<hr><h2>Function Documentation</h2>
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<a class="anchor" name="889287e92c71f81b818f20cc379f17c4"></a><!-- doxytag: member="xwdtps.c::XWdtPs_CfgInitialize" ref="889287e92c71f81b818f20cc379f17c4" args="(XWdtPs *InstancePtr, XWdtPs_Config *ConfigPtr, u32 EffectiveAddress)" --><p>
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<td class="md" nowrap valign="top">int XWdtPs_CfgInitialize </td>
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<td class="md" valign="top">( </td>
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<td class="md" nowrap valign="top"><a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> * </td>
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<td class="mdname" nowrap> <em>InstancePtr</em>, </td>
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<tr>
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<td class="md" nowrap align="right"></td>
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<td class="md"></td>
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<td class="md" nowrap><a class="el" href="struct_x_wdt_ps___config.html">XWdtPs_Config</a> * </td>
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<td class="mdname" nowrap> <em>ConfigPtr</em>, </td>
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</tr>
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<tr>
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<td class="md" nowrap align="right"></td>
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<td class="md"></td>
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<td class="md" nowrap>u32 </td>
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<td class="mdname" nowrap> <em>EffectiveAddress</em></td>
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</tr>
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<tr>
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<td class="md"></td>
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<td class="md">) </td>
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<td class="md" colspan="2"></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing="5" cellpadding="0" border="0">
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<tr>
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<td>
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</td>
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<td>
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<p>
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Initialize a specific watchdog timer instance/driver. This function must be called before other functions of the driver are called.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> instance. </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>ConfigPtr</em> </td><td>is the config structure. </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>EffectiveAddress</em> </td><td>is the base address for the device. It could be a virtual address if address translation is supported in the system, otherwise it is the physical address.</td></tr>
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</table>
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</dl>
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<dl compact><dt><b>Returns:</b></dt><dd><ul>
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<li>XST_SUCCESS if initialization was successful.</li><li>XST_DEVICE_IS_STARTED if the device has already been started.</li></ul>
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</dd></dl>
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<dl compact><dt><b>Note:</b></dt><dd>None. </dd></dl>
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</td>
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</tr>
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</table>
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<a class="anchor" name="b6535cd28548eb51dda4435160ca7234"></a><!-- doxytag: member="xwdtps.c::XWdtPs_DisableOutput" ref="b6535cd28548eb51dda4435160ca7234" args="(XWdtPs *InstancePtr, u8 Signal)" --><p>
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<table class="mdTable" cellpadding="2" cellspacing="0">
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<tr>
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<td class="mdRow">
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<table cellpadding="0" cellspacing="0" border="0">
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<tr>
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<td class="md" nowrap valign="top">void XWdtPs_DisableOutput </td>
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<td class="md" valign="top">( </td>
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<td class="md" nowrap valign="top"><a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> * </td>
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<td class="mdname" nowrap> <em>InstancePtr</em>, </td>
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</tr>
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<tr>
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<td class="md" nowrap align="right"></td>
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<td class="md"></td>
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<td class="md" nowrap>u8 </td>
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<td class="mdname" nowrap> <em>Signal</em></td>
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</tr>
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<tr>
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<td class="md"></td>
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<td class="md">) </td>
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<td class="md" colspan="2"></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table cellspacing="5" cellpadding="0" border="0">
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<p>
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Disables the indicated signal/output. Performs a read/modify/write cycle to update the value correctly.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> instance. </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>Signal</em> </td><td>is the desired signal/output. Valid Signal Values are XWDTPS_RESET_SIGNAL and XWDTPS_IRQ_SIGNAL Only one of them can be specified at a time.</td></tr>
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</table>
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</dl>
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<dl compact><dt><b>Returns:</b></dt><dd>None.</dd></dl>
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<dl compact><dt><b>Note:</b></dt><dd>None. </dd></dl>
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</td>
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</tr>
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</table>
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<a class="anchor" name="0eff5cec124391803a4b752ba11390d8"></a><!-- doxytag: member="xwdtps.c::XWdtPs_EnableOutput" ref="0eff5cec124391803a4b752ba11390d8" args="(XWdtPs *InstancePtr, u8 Signal)" --><p>
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<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top">void XWdtPs_EnableOutput </td>
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<td class="md" valign="top">( </td>
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<td class="md" nowrap valign="top"><a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> * </td>
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<td class="mdname" nowrap> <em>InstancePtr</em>, </td>
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</tr>
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<td class="md" nowrap align="right"></td>
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<td class="md"></td>
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<td class="md" nowrap>u8 </td>
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<td class="mdname" nowrap> <em>Signal</em></td>
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</tr>
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<td class="md"></td>
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<td class="md">) </td>
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<p>
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Enables the indicated signal/output. Performs a read/modify/write cycle to update the value correctly.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> instance. </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>Signal</em> </td><td>is the desired signal/output. Valid Signal Values are XWDTPS_RESET_SIGNAL and XWDTPS_IRQ_SIGNAL. Only one of them can be specified at a time.</td></tr>
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</table>
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</dl>
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<dl compact><dt><b>Returns:</b></dt><dd>None.</dd></dl>
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<dl compact><dt><b>Note:</b></dt><dd>None. </dd></dl>
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</td>
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</tr>
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</table>
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<a class="anchor" name="7a5a2fcf6583a74558d9e56a3920b86e"></a><!-- doxytag: member="xwdtps.c::XWdtPs_GetControlValue" ref="7a5a2fcf6583a74558d9e56a3920b86e" args="(XWdtPs *InstancePtr, u8 Control)" --><p>
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<td class="md" nowrap valign="top">u32 XWdtPs_GetControlValue </td>
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<td class="md" valign="top">( </td>
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<td class="md" nowrap valign="top"><a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> * </td>
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<td class="mdname" nowrap> <em>InstancePtr</em>, </td>
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<td class="md" nowrap align="right"></td>
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<td class="md"></td>
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<td class="md" nowrap>u8 </td>
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<td class="mdname" nowrap> <em>Control</em></td>
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</tr>
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<td class="md"></td>
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<td class="md">) </td>
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</table>
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<p>
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Returns the current control setting for the indicated signal/output. The register referenced is the Counter Control Register (XWDTPS_CCR_OFFSET)<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> instance. </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>Control</em> </td><td>is the desired signal/output. Valid Control Values are XWDTPS_CLK_PRESCALE and XWDTPS_COUNTER_RESET. Only one of them can be specified at a time.</td></tr>
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</table>
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</dl>
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<dl compact><dt><b>Returns:</b></dt><dd>The contents of the requested control field in the Counter Control Register (XWDTPS_CCR_OFFSET). If the Control is XWDTPS_CLK_PRESCALE then use the defintions XWDTEPB_CCR_PSCALE_XXXX. If the Control is XWDTPS_COUNTER_RESET then the values are 0x0 to 0xFFF. This is the Counter Restart value in the CCR register.</dd></dl>
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<dl compact><dt><b>Note:</b></dt><dd>None. </dd></dl>
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</td>
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</tr>
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<a class="anchor" name="a1540280195d87bf0670fce975f415ba"></a><!-- doxytag: member="xwdtps.c::XWdtPs_SetControlValue" ref="a1540280195d87bf0670fce975f415ba" args="(XWdtPs *InstancePtr, u8 Control, u32 Value)" --><p>
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<td class="md" nowrap valign="top">void XWdtPs_SetControlValue </td>
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<td class="md" valign="top">( </td>
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<td class="md" nowrap valign="top"><a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> * </td>
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<td class="mdname" nowrap> <em>InstancePtr</em>, </td>
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<tr>
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<td class="md" nowrap align="right"></td>
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<td class="md"></td>
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<td class="md" nowrap>u8 </td>
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<td class="mdname" nowrap> <em>Control</em>, </td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="md" nowrap align="right"></td>
|
||
|
|
<td class="md"></td>
|
||
|
|
<td class="md" nowrap>u32 </td>
|
||
|
|
<td class="mdname" nowrap> <em>Value</em></td>
|
||
|
|
</tr>
|
||
|
|
<tr>
|
||
|
|
<td class="md"></td>
|
||
|
|
<td class="md">) </td>
|
||
|
|
<td class="md" colspan="2"></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
<table cellspacing="5" cellpadding="0" border="0">
|
||
|
|
<tr>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
</td>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
Updates the current control setting for the indicated signal/output with the provided value.<p>
|
||
|
|
Performs a read/modify/write cycle to update the value correctly. The register referenced is the Counter Control Register (XWDTPS_CCR_OFFSET)<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>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> instance. </td></tr>
|
||
|
|
<tr><td valign="top"></td><td valign="top"><em>Control</em> </td><td>is the desired signal/output. Valid Control Values are XWDTPS_CLK_PRESCALE and XWDTPS_COUNTER_RESET. Only one of them can be specified at a time. </td></tr>
|
||
|
|
<tr><td valign="top"></td><td valign="top"><em>Value</em> </td><td>is the desired control value. If the Control is XWDTPS_CLK_PRESCALE then use the defintions XWDTEPB_CCR_PSCALE_XXXX. If the Control is XWDTPS_COUNTER_RESET then the valid values are 0x0 to 0xFFF, this sets the counter restart value of the CCR register.</td></tr>
|
||
|
|
</table>
|
||
|
|
</dl>
|
||
|
|
<dl compact><dt><b>Returns:</b></dt><dd>None.</dd></dl>
|
||
|
|
<dl compact><dt><b>Note:</b></dt><dd>None. </dd></dl>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
<a class="anchor" name="a4f0f004c19c03180181cecc1d3d2bf7"></a><!-- doxytag: member="xwdtps.c::XWdtPs_Start" ref="a4f0f004c19c03180181cecc1d3d2bf7" args="(XWdtPs *InstancePtr)" --><p>
|
||
|
|
<table class="mdTable" cellpadding="2" cellspacing="0">
|
||
|
|
<tr>
|
||
|
|
<td class="mdRow">
|
||
|
|
<table cellpadding="0" cellspacing="0" border="0">
|
||
|
|
<tr>
|
||
|
|
<td class="md" nowrap valign="top">void XWdtPs_Start </td>
|
||
|
|
<td class="md" valign="top">( </td>
|
||
|
|
<td class="md" nowrap valign="top"><a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> * </td>
|
||
|
|
<td class="mdname1" valign="top" nowrap> <em>InstancePtr</em> </td>
|
||
|
|
<td class="md" valign="top"> ) </td>
|
||
|
|
<td class="md" nowrap></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
<table cellspacing="5" cellpadding="0" border="0">
|
||
|
|
<tr>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
</td>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
Start the watchdog timer of the device.<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>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> instance.</td></tr>
|
||
|
|
</table>
|
||
|
|
</dl>
|
||
|
|
<dl compact><dt><b>Returns:</b></dt><dd>None.</dd></dl>
|
||
|
|
<dl compact><dt><b>Note:</b></dt><dd>None. </dd></dl>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
<a class="anchor" name="cf8b9d633bdfd73c2dc30200168ef98e"></a><!-- doxytag: member="xwdtps.c::XWdtPs_Stop" ref="cf8b9d633bdfd73c2dc30200168ef98e" args="(XWdtPs *InstancePtr)" --><p>
|
||
|
|
<table class="mdTable" cellpadding="2" cellspacing="0">
|
||
|
|
<tr>
|
||
|
|
<td class="mdRow">
|
||
|
|
<table cellpadding="0" cellspacing="0" border="0">
|
||
|
|
<tr>
|
||
|
|
<td class="md" nowrap valign="top">void XWdtPs_Stop </td>
|
||
|
|
<td class="md" valign="top">( </td>
|
||
|
|
<td class="md" nowrap valign="top"><a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> * </td>
|
||
|
|
<td class="mdname1" valign="top" nowrap> <em>InstancePtr</em> </td>
|
||
|
|
<td class="md" valign="top"> ) </td>
|
||
|
|
<td class="md" nowrap></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
<table cellspacing="5" cellpadding="0" border="0">
|
||
|
|
<tr>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
</td>
|
||
|
|
<td>
|
||
|
|
|
||
|
|
<p>
|
||
|
|
Disable the watchdog timer.<p>
|
||
|
|
It is the caller's responsibility to disconnect the interrupt handler of the watchdog timer from the interrupt source, typically an interrupt controller, and disable the interrupt in the interrupt 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>InstancePtr</em> </td><td>is a pointer to the <a class="el" href="struct_x_wdt_ps.html">XWdtPs</a> instance.</td></tr>
|
||
|
|
</table>
|
||
|
|
</dl>
|
||
|
|
<dl compact><dt><b>Returns:</b></dt><dd>None.</dd></dl>
|
||
|
|
<dl compact><dt><b>Note:</b></dt><dd>None. </dd></dl>
|
||
|
|
</td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
|
Copyright @ 1995-2014 Xilinx, Inc. All rights reserved.
|