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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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<title>2014.1_doc: mb-hw.c File Reference</title>
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<a class="el" href="dir_U_3A_2Fdoxygen_5Fpublish_2Fsources_2Fbsp_2Fxilkernel_5Fv6_5F0_2Fsrc_2Fsrc_2F.html">src</a>&nbsp;&raquo&nbsp;<a class="el" href="dir_U_3A_2Fdoxygen_5Fpublish_2Fsources_2Fbsp_2Fxilkernel_5Fv6_5F0_2Fsrc_2Fsrc_2Farch_2F.html">arch</a>&nbsp;&raquo&nbsp;<a class="el" href="dir_U_3A_2Fdoxygen_5Fpublish_2Fsources_2Fbsp_2Fxilkernel_5Fv6_5F0_2Fsrc_2Fsrc_2Farch_2Fmicroblaze_2F.html">microblaze</a></div>
<h1>mb-hw.c File Reference</h1><code>#include &lt;<a class="el" href="os__config_8h.html">os_config.h</a>&gt;</code><br>
<code>#include &lt;<a class="el" href="process_8h.html">sys/process.h</a>&gt;</code><br>
<code>#include &lt;<a class="el" href="config__param_8h.html">config/config_param.h</a>&gt;</code><br>
<code>#include &lt;<a class="el" href="config__cparam_8h.html">config/config_cparam.h</a>&gt;</code><br>
<code>#include &lt;xil_types.h&gt;</code><br>
<code>#include &lt;xstatus.h&gt;</code><br>
<code>#include &lt;xparameters.h&gt;</code><br>
<code>#include &lt;<a class="el" href="decls_8h.html">sys/decls.h</a>&gt;</code><br>
<code>#include &lt;microblaze_exceptions_g.h&gt;</code><br>
<code>#include &lt;<a class="el" href="init_8h.html">sys/init.h</a>&gt;</code><br>
<code>#include &lt;mb_interface.h&gt;</code><br>
<code>#include &lt;stdio.h&gt;</code><br>
<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="mb-hw_8c.html#bf044b59b625a5fd9341dfed6c347443">pit_initialize</a> (unsigned int interval)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="mb-hw_8c.html#cdd7208c343b71f57c0cc90a1c0796b8">pit_reset</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="mb-hw_8c.html#591a7c05bebe29e0f6f59420d9a07b61">hw_init</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="mb-hw_8c.html#bc6f27b995045157e9f88aac0bfa1c2a">xmk_enter_kernel</a> (void)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="mb-hw_8c.html#834b553ad062472ee1b9c14c47f37ca9">xmk_leave_kernel</a> (void)</td></tr>
<tr><td colspan="2"><br><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="5f791cfb55e97daa4605c4f66fe1864a"></a><!-- doxytag: member="mb-hw.c::current_pid" ref="5f791cfb55e97daa4605c4f66fe1864a" args="" -->
pid_t&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="mb-hw_8c.html#5f791cfb55e97daa4605c4f66fe1864a">current_pid</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Kernel Stack pointer. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7d382a2908eba2a7afe94aa20b5527e0"></a><!-- doxytag: member="mb-hw.c::timer_need_refresh" ref="7d382a2908eba2a7afe94aa20b5527e0" args="" -->
char&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="mb-hw_8c.html#7d382a2908eba2a7afe94aa20b5527e0">timer_need_refresh</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Ticks since kernel startup. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4dda8d189c311afb02983ec112d81499"></a><!-- doxytag: member="mb-hw.c::sched_partial_tick" ref="4dda8d189c311afb02983ec112d81499" args="" -->
unsigned char&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="mb-hw_8c.html#4dda8d189c311afb02983ec112d81499">sched_partial_tick</a></td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Do we need a reset? <br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Microblaze hardware specific initialization <hr><h2>Function Documentation</h2>
<a class="anchor" name="591a7c05bebe29e0f6f59420d9a07b61"></a><!-- doxytag: member="mb-hw.c::hw_init" ref="591a7c05bebe29e0f6f59420d9a07b61" args="(void)" --><p>
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<td class="md" nowrap valign="top">void hw_init </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
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&nbsp;
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<p>
Microblaze hardware specific initialization<ul>
<li>If an interrupt controller is present register interrupt controller handler as the main interrupt handler. Register timer with interrupt controller handler</li><li>Else, Register timer interrupt handler as the main interrupt handler</li><li>Configure PIT is timer is PIT. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>none</em>&nbsp;</td><td></td></tr>
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</dl>
<dl compact><dt><b>Returns:</b></dt><dd></dd></dl>
</li><li>nothing <dl compact><dt><b>Note:</b></dt><dd></dd></dl>
</li><li>none </li></ul>
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<a class="anchor" name="bf044b59b625a5fd9341dfed6c347443"></a><!-- doxytag: member="mb-hw.c::pit_initialize" ref="bf044b59b625a5fd9341dfed6c347443" args="(unsigned int interval)" --><p>
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<td class="md" nowrap valign="top">void pit_initialize </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">unsigned int&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>interval</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
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Initialize the PIT timer in the system <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>interval</em>&nbsp;</td><td>is the interval to interrupt the system at. </td></tr>
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</dl>
<dl compact><dt><b>Returns:</b></dt><dd><ul>
<li>nothing </li></ul>
</dd></dl>
<dl compact><dt><b>Note:</b></dt><dd><ul>
<li>none </li></ul>
</dd></dl>
</td>
</tr>
</table>
<a class="anchor" name="cdd7208c343b71f57c0cc90a1c0796b8"></a><!-- doxytag: member="mb-hw.c::pit_reset" ref="cdd7208c343b71f57c0cc90a1c0796b8" args="(void)" --><p>
<table class="mdTable" cellpadding="2" cellspacing="0">
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<td class="md" nowrap valign="top">void pit_reset </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
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&nbsp;
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<p>
Enable and start PIT timer with configured PIT interval loaded to the PIT counter <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>none</em>&nbsp;</td><td></td></tr>
</table>
</dl>
<dl compact><dt><b>Returns:</b></dt><dd><ul>
<li>nothing </li></ul>
</dd></dl>
<dl compact><dt><b>Note:</b></dt><dd><ul>
<li>none </li></ul>
</dd></dl>
</td>
</tr>
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<a class="anchor" name="bc6f27b995045157e9f88aac0bfa1c2a"></a><!-- doxytag: member="mb-hw.c::xmk_enter_kernel" ref="bc6f27b995045157e9f88aac0bfa1c2a" args="(void)" --><p>
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<td class="md" nowrap valign="top">void xmk_enter_kernel </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap><code> [inline]</code></td>
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&nbsp;
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<p>
Lock kernel by turning off ALL system interrupts <dl compact><dt><b>Returns:</b></dt><dd><ul>
<li>Nothing </li></ul>
</dd></dl>
<dl compact><dt><b>Note:</b></dt><dd><ul>
<li>Locks kernel against ALL interrupts. </li></ul>
</dd></dl>
</td>
</tr>
</table>
<a class="anchor" name="834b553ad062472ee1b9c14c47f37ca9"></a><!-- doxytag: member="mb-hw.c::xmk_leave_kernel" ref="834b553ad062472ee1b9c14c47f37ca9" args="(void)" --><p>
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<td class="md" nowrap valign="top">void xmk_leave_kernel </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">void&nbsp;</td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap><code> [inline]</code></td>
</tr>
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</td>
</tr>
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&nbsp;
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<p>
Unlock kernel by turning on system timer interrupts <dl compact><dt><b>Returns:</b></dt><dd><ul>
<li>Nothing </li></ul>
</dd></dl>
<dl compact><dt><b>Note:</b></dt><dd><ul>
<li>Unlocks kernel with respect to ALL interrupts </li></ul>
</dd></dl>
</td>
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</table>
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