stv0g/embeddedsw
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity
embeddedsw/lib/bsp/xilkernel/doc/html/api/ppc-hw_8c.html
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

288 lines
13 KiB
HTML
Executable file
Raw Blame History

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>2014.1_doc: ppc-hw.c File Reference</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
<link href="tabs.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.4.5 -->
<div class="tabs">
<ul>
<li><a href="index.html"><span>Main&nbsp;Page</span></a></li>
<li><a href="annotated.html"><span>Data&nbsp;Structures</span></a></li>
<li id="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="dirs.html"><span>Directories</span></a></li>
</ul></div>
<div class="tabs">
<ul>
<li><a href="files.html"><span>File&nbsp;List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul></div>
<div class="nav">
<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_2Fppc_2F.html">ppc</a></div>
<h1>ppc-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="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;<a class="el" href="ktypes_8h.html">sys/ktypes.h</a>&gt;</code><br>
<code>#include &lt;xparameters.h&gt;</code><br>
<code>#include &lt;<a class="el" href="process_8h.html">sys/process.h</a>&gt;</code><br>
<code>#include &lt;xil_exception.h&gt;</code><br>
<code>#include &lt;xtime_l.h&gt;</code><br>
<code>#include &lt;xpseudo_asm.h&gt;</code><br>
<code>#include &lt;<a class="el" href="syscall_8h.html">sys/syscall.h</a>&gt;</code><br>
<code>#include &lt;<a class="el" href="decls_8h.html">sys/decls.h</a>&gt;</code><br>
<code>#include &lt;xreg405.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="ppc-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="ppc-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="ppc-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="ppc-hw_8c.html#a1b1bb53c44cce00f5dc8aefa7d99ff8">timer_int_handler</a> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="ppc-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="ppc-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="7d382a2908eba2a7afe94aa20b5527e0"></a><!-- doxytag: member="ppc-hw.c::timer_need_refresh" ref="7d382a2908eba2a7afe94aa20b5527e0" args="" -->
char&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="ppc-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="ppc-hw.c::sched_partial_tick" ref="4dda8d189c311afb02983ec112d81499" args="" -->
unsigned char&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="ppc-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>
PPC Hardware initialization <hr><h2>Function Documentation</h2>
<a class="anchor" name="591a7c05bebe29e0f6f59420d9a07b61"></a><!-- doxytag: member="ppc-hw.c::hw_init" ref="591a7c05bebe29e0f6f59420d9a07b61" args="(void)" --><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 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>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<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>
</table>
</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>
</td>
</tr>
</table>
<a class="anchor" name="bf044b59b625a5fd9341dfed6c347443"></a><!-- doxytag: member="ppc-hw.c::pit_initialize" ref="bf044b59b625a5fd9341dfed6c347443" args="(unsigned int interval)" --><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 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>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
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>
</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>
</table>
<a class="anchor" name="cdd7208c343b71f57c0cc90a1c0796b8"></a><!-- doxytag: member="ppc-hw.c::pit_reset" ref="cdd7208c343b71f57c0cc90a1c0796b8" args="(void)" --><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 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>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<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>
</table>
<a class="anchor" name="a1b1bb53c44cce00f5dc8aefa7d99ff8"></a><!-- doxytag: member="ppc-hw.c::timer_int_handler" ref="a1b1bb53c44cce00f5dc8aefa7d99ff8" args="(int)" --><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 timer_int_handler </td>
<td class="md" valign="top">(&nbsp;</td>
<td class="md" nowrap valign="top">int&nbsp;</td>
<td class="mdname1" valign="top" nowrap> <em>irq_num</em> </td>
<td class="md" valign="top">&nbsp;)&nbsp;</td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<p>
System timer interrupt handler<ul>
<li>Do a rescheduling operation</li><li>If a context switch occurs within this routine,<ul>
<li>When returning out of process_scheduler, process executing will return in the appropriate context when it was switched out on a previous flow through this execution path.</li></ul>
</li><li>Reset PIT interval to start a full time slice (if PIT in the system) (if INTC not present) <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></dd></dl>
</li><li>nothing <dl compact><dt><b>Note:</b></dt><dd></dd></dl>
</li><li>May NOT return from this routine if a NEW process context is scheduled in the scheduler</li><li>A context switch does not occur within this routine if an INTC is present. The switch occurs at the end of the INTC ISR. </li></ul>
</td>
</tr>
</table>
<a class="anchor" name="bc6f27b995045157e9f88aac0bfa1c2a"></a><!-- doxytag: member="ppc-hw.c::xmk_enter_kernel" ref="bc6f27b995045157e9f88aac0bfa1c2a" args="(void)" --><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 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>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<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><li>Does not lock against critical interrupts. </li></ul>
</dd></dl>
</td>
</tr>
</table>
<a class="anchor" name="834b553ad062472ee1b9c14c47f37ca9"></a><!-- doxytag: member="ppc-hw.c::xmk_leave_kernel" ref="834b553ad062472ee1b9c14c47f37ca9" args="(void)" --><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 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>
</table>
</td>
</tr>
</table>
<table cellspacing="5" cellpadding="0" border="0">
<tr>
<td>
&nbsp;
</td>
<td>
<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 except critical interrupts </li></ul>
</dd></dl>
</td>
</tr>
</table>
<hr size="1"><address style="align: right;"><small>Generated on Thu Feb 13 14:46:24 2014 for 2014.1_doc by&nbsp;
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.5 </small></address>
</body>
</html>
Reference in a new issue View git blame Copy permalink