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Jagannadha Sutradharudu Teki 2c8f92039d embeddesw: Add initial code support 
Added initial support Xilinx Embedded Software.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-06-24 16:45:01 +05:30

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Xilinx Driver common v1_00_a: xversion.c File Reference
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<h1>xversion.c File Reference</h1><hr><a name="_details"></a><h2>Detailed Description</h2>
This file contains the implementation of the XVersion component. This component represents a version ID. It is encapsulated within a component so that it's type and implementation can change without affecting users of it.<p>
The version is formatted as X.YYZ where X = 0 - 9, Y = 00 - 99, Z = a - z X is the major revision, YY is the minor revision, and Z is the compatability revision.<p>
Packed versions are also utilized for the configuration ROM such that memory is minimized. A packed version consumes only 16 bits and is formatted as follows.<p>
<pre>
Revision Range Bit Positions</pre><p>
<pre> Major Revision 0 - 9 Bits 15 - 12
Minor Revision 0 - 99 Bits 11 - 5
Compatability Revision a - z Bits 4 - 0</pre><p>
<pre> MODIFICATION HISTORY:</pre><p>
<pre> Ver Who Date Changes
----- ---- -------- -------------------------------------------------------
1.00a xd 11/03/04 Improved support for doxygen.
</pre>
<p>
<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">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="xversion_8c.html#83e7589d43e80a3c55f89d437bf72cee">XVersion_UnPack</a> (XVersion *InstancePtr, u16 PackedVersion)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="xversion_8c.html#c899b60e44960582459c9b83e1e68095">XVersion_Pack</a> (XVersion *InstancePtr, u16 *PackedVersionPtr)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="xversion_8c.html#a60d242fb47a09b74d9273048938bc40">XVersion_IsEqual</a> (XVersion *InstancePtr, XVersion *VersionPtr)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="xversion_8c.html#5509d59e756d51585c81b132cae02935">XVersion_ToString</a> (XVersion *InstancePtr, char *StringPtr)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="xversion_8c.html#22fd522b3e13c6512573a164b1a41d6e">XVersion_FromString</a> (XVersion *InstancePtr, char *StringPtr)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="xversion_8c.html#c6dc2f6cf4c2da3f6588eef8387d3b71">XVersion_Copy</a> (XVersion *InstancePtr, XVersion *VersionPtr)</td></tr>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="c6dc2f6cf4c2da3f6588eef8387d3b71"></a><!-- doxytag: member="xversion.c::XVersion_Copy" ref="c6dc2f6cf4c2da3f6588eef8387d3b71" args="(XVersion *InstancePtr, XVersion *VersionPtr)" -->
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<td class="memname">void XVersion_Copy </td>
<td>(</td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>InstancePtr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>VersionPtr</em></td><td>&nbsp;</td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
Copies the contents of a version to another version.<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>&nbsp;</td><td>points to the version which is the source of data for the copy operation. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>VersionPtr</em>&nbsp;</td><td>points to another version which is the destination of the copy operation.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd></dd></dl>
None.<p>
<dl compact><dt><b>Note:</b></dt><dd></dd></dl>
None.
</div>
</div><p>
<a class="anchor" name="22fd522b3e13c6512573a164b1a41d6e"></a><!-- doxytag: member="xversion.c::XVersion_FromString" ref="22fd522b3e13c6512573a164b1a41d6e" args="(XVersion *InstancePtr, char *StringPtr)" -->
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<td class="memname">int XVersion_FromString </td>
<td>(</td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>InstancePtr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&nbsp;</td>
<td class="paramname"> <em>StringPtr</em></td><td>&nbsp;</td>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
Initializes a version from a null terminated string. Since the string may not be a format which is compatible with the version, an error could occur.<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>&nbsp;</td><td>points to the version which is to be initialized. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>StringPtr</em>&nbsp;</td><td>points to a null terminated string which will be converted to a version. The format of the string must match the version string format which is X.YYX where X = 0 - 9, YY = 00 - 99, Z = a - z.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd></dd></dl>
A status, XST_SUCCESS, indicating the conversion was accomplished successfully, or XST_INVALID_VERSION indicating the version string format was not valid.<p>
<dl compact><dt><b>Note:</b></dt><dd></dd></dl>
None.
</div>
</div><p>
<a class="anchor" name="a60d242fb47a09b74d9273048938bc40"></a><!-- doxytag: member="xversion.c::XVersion_IsEqual" ref="a60d242fb47a09b74d9273048938bc40" args="(XVersion *InstancePtr, XVersion *VersionPtr)" -->
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<td class="memname">int XVersion_IsEqual </td>
<td>(</td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>InstancePtr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>VersionPtr</em></td><td>&nbsp;</td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
Determines if two versions are equal.<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>&nbsp;</td><td>points to the first version to be compared. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>VersionPtr</em>&nbsp;</td><td>points to a second version to be compared.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd></dd></dl>
TRUE if the versions are equal, FALSE otherwise.<p>
<dl compact><dt><b>Note:</b></dt><dd></dd></dl>
None.
</div>
</div><p>
<a class="anchor" name="c899b60e44960582459c9b83e1e68095"></a><!-- doxytag: member="xversion.c::XVersion_Pack" ref="c899b60e44960582459c9b83e1e68095" args="(XVersion *InstancePtr, u16 *PackedVersionPtr)" -->
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<td class="memname">int XVersion_Pack </td>
<td>(</td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>InstancePtr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">u16 *&nbsp;</td>
<td class="paramname"> <em>PackedVersionPtr</em></td><td>&nbsp;</td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
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<p>
Packs a version into the specified packed version. Versions are packed into the configuration ROM to reduce the amount storage.<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>&nbsp;</td><td>points to the version to pack. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>PackedVersionPtr</em>&nbsp;</td><td>points to the packed version which will receive the new packed version.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd></dd></dl>
A status, XST_SUCCESS, indicating the packing was accomplished successfully, or an error, XST_INVALID_VERSION, indicating the specified input version was not valid such that the pack did not occur <br>
<br>
The packed version pointed to by PackedVersionPtr is modified with the new packed version if the status indicates success.<p>
<dl compact><dt><b>Note:</b></dt><dd></dd></dl>
None.
</div>
</div><p>
<a class="anchor" name="5509d59e756d51585c81b132cae02935"></a><!-- doxytag: member="xversion.c::XVersion_ToString" ref="5509d59e756d51585c81b132cae02935" args="(XVersion *InstancePtr, char *StringPtr)" -->
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<td class="memname">void XVersion_ToString </td>
<td>(</td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>InstancePtr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&nbsp;</td>
<td class="paramname"> <em>StringPtr</em></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
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<p>
Converts a version to a null terminated string.<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>&nbsp;</td><td>points to the version to convert. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>StringPtr</em>&nbsp;</td><td>points to the string which will be the result of the conversion. This does not need to point to a null terminated string as an input, but must point to storage which is an adequate amount to hold the result string.</td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd></dd></dl>
The null terminated string is inserted at the location pointed to by StringPtr if the status indicates success.<p>
<dl compact><dt><b>Note:</b></dt><dd></dd></dl>
It is necessary for the caller to have already allocated the storage to contain the string. The amount of memory necessary for the string is specified in the version header file.
</div>
</div><p>
<a class="anchor" name="83e7589d43e80a3c55f89d437bf72cee"></a><!-- doxytag: member="xversion.c::XVersion_UnPack" ref="83e7589d43e80a3c55f89d437bf72cee" args="(XVersion *InstancePtr, u16 PackedVersion)" -->
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<td class="memname">void XVersion_UnPack </td>
<td>(</td>
<td class="paramtype">XVersion *&nbsp;</td>
<td class="paramname"> <em>InstancePtr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">u16&nbsp;</td>
<td class="paramname"> <em>PackedVersion</em></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
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<p>
Unpacks a packed version into the specified version. Versions are packed into the configuration ROM to reduce the amount storage. A packed version is a binary format as oppossed to a non-packed version which is implemented as a string.<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>&nbsp;</td><td>points to the version to unpack the packed version into. </td></tr>
<tr><td valign="top"></td><td valign="top"><em>PackedVersion</em>&nbsp;</td><td>contains the packed version to unpack.</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>
</div>
</div><p>
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