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<a class="el" href="dir_897b6a2d7bab147dd1db58381aad3984.html">src</a> » <a class="el" href="dir_832905b1f7f5feaf61a306b40c0ac817.html">sys</a> » <a class="el" href="dir_2f8fc94d4f17c865dd63167e45dee9cf.html">isa</a></div>
<h1>8259.c File Reference</h1><code>#include <<a class="el" href="8259_8h-source.html">isa/8259.h</a>></code><br>
<code>#include <<a class="el" href="io_8h-source.html">sys/io.h</a>></code><br>
<code>#include <<a class="el" href="kprintf_8h-source.html">lib/kprintf.h</a>></code><br>
<p>
Include dependency graph for 8259.c:<p><center><img src="8259_8c__incl.png" border="0" usemap="#src/sys/isa/8259.c_map" alt=""></center>
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<a href="8259_8c-source.html">Go to the source code of this file.</a><table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="8259_8c.html#8045101c57cc1791817412b1016794b4">i8259_init</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">initialize the 8259 PIC <a href="#8045101c57cc1791817412b1016794b4"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="8259_8c.html#371dc14d6686c2005baaa0be4b26ab87">irqDisable</a> (<a class="el" href="types_8h.html#f7b042408b9b104606f8a9b5035329f3">u_int16_t</a> irqNo)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">disable specified IRQ <a href="#371dc14d6686c2005baaa0be4b26ab87"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="8259_8c.html#49b612db44e9e81ee7bad138264d6e32">irqEnable</a> (<a class="el" href="types_8h.html#f7b042408b9b104606f8a9b5035329f3">u_int16_t</a> irqNo)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">enable specified IRQ <a href="#49b612db44e9e81ee7bad138264d6e32"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Variables</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">static unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="8259_8c.html#c1c08e908fa26e3c59fd4989c5290c58">irqMask</a> = 0xFFFF</td></tr>
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<hr><h2>Function Documentation</h2>
<a class="anchor" name="8045101c57cc1791817412b1016794b4"></a><!-- doxytag: member="8259.c::i8259_init" ref="8045101c57cc1791817412b1016794b4" args="()" -->
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<td class="memname">int i8259_init </td>
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<p>
initialize the 8259 PIC
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This will initialize both PICs for all of our IRQs
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Definition at line <a class="el" href="8259_8c-source.html#l00042">42</a> of file <a class="el" href="8259_8c-source.html">8259.c</a>.
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References <a class="el" href="8259_8h-source.html#l00040">icw1</a>, <a class="el" href="8259_8h-source.html#l00041">icw4</a>, <a class="el" href="kprintf_8c-source.html#l00038">kprintf()</a>, <a class="el" href="8259_8h-source.html#l00036">mImr</a>, <a class="el" href="8259_8h-source.html#l00035">mPic</a>, <a class="el" href="8259_8h-source.html#l00042">mVec</a>, <a class="el" href="io_8c-source.html#l00073">outportByte()</a>, <a class="el" href="8259_8h-source.html#l00038">sImr</a>, <a class="el" href="8259_8h-source.html#l00037">sPic</a>, and <a class="el" href="8259_8h-source.html#l00043">sVec</a>.
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Here is the call graph for this function:<p><center><img src="8259_8c_8045101c57cc1791817412b1016794b4_cgraph.png" border="0" usemap="#8259_8c_8045101c57cc1791817412b1016794b4_cgraph_map" alt=""></center>
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<a class="anchor" name="371dc14d6686c2005baaa0be4b26ab87"></a><!-- doxytag: member="8259.c::irqDisable" ref="371dc14d6686c2005baaa0be4b26ab87" args="(u_int16_t irqNo)" -->
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<td class="memname">void irqDisable </td>
<td>(</td>
<td class="paramtype"><a class="el" href="types_8h.html#f7b042408b9b104606f8a9b5035329f3">u_int16_t</a> </td>
<td class="paramname"> <em>irqNo</em> </td>
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disable specified IRQ
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<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>irqNo</em> </td><td>IRQ to disable </td></tr>
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Definition at line <a class="el" href="8259_8c-source.html#l00081">81</a> of file <a class="el" href="8259_8c-source.html">8259.c</a>.
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References <a class="el" href="8259_8c-source.html#l00034">irqMask</a>, <a class="el" href="8259_8h-source.html#l00035">mPic</a>, <a class="el" href="io_8c-source.html#l00073">outportByte()</a>, and <a class="el" href="8259_8h-source.html#l00037">sPic</a>.
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Here is the call graph for this function:<p><center><img src="8259_8c_371dc14d6686c2005baaa0be4b26ab87_cgraph.png" border="0" usemap="#8259_8c_371dc14d6686c2005baaa0be4b26ab87_cgraph_map" alt=""></center>
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<a class="anchor" name="49b612db44e9e81ee7bad138264d6e32"></a><!-- doxytag: member="8259.c::irqEnable" ref="49b612db44e9e81ee7bad138264d6e32" args="(u_int16_t irqNo)" -->
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<td class="memname">void irqEnable </td>
<td>(</td>
<td class="paramtype"><a class="el" href="types_8h.html#f7b042408b9b104606f8a9b5035329f3">u_int16_t</a> </td>
<td class="paramname"> <em>irqNo</em> </td>
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<p>
enable specified IRQ
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<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>irqNo</em> </td><td>IRQ to enable </td></tr>
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Definition at line <a class="el" href="8259_8c-source.html#l00067">67</a> of file <a class="el" href="8259_8c-source.html">8259.c</a>.
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References <a class="el" href="8259_8c-source.html#l00034">irqMask</a>, <a class="el" href="8259_8h-source.html#l00035">mPic</a>, <a class="el" href="io_8c-source.html#l00073">outportByte()</a>, and <a class="el" href="8259_8h-source.html#l00037">sPic</a>.
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Here is the call graph for this function:<p><center><img src="8259_8c_49b612db44e9e81ee7bad138264d6e32_cgraph.png" border="0" usemap="#8259_8c_49b612db44e9e81ee7bad138264d6e32_cgraph_map" alt=""></center>
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<hr><h2>Variable Documentation</h2>
<a class="anchor" name="c1c08e908fa26e3c59fd4989c5290c58"></a><!-- doxytag: member="8259.c::irqMask" ref="c1c08e908fa26e3c59fd4989c5290c58" args="" -->
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<td class="memname">unsigned int <a class="el" href="8259_8c.html#c1c08e908fa26e3c59fd4989c5290c58">irqMask</a> = 0xFFFF<code> [static]</code> </td>
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<p>
Definition at line <a class="el" href="8259_8c-source.html#l00034">34</a> of file <a class="el" href="8259_8c-source.html">8259.c</a>.
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Referenced by <a class="el" href="8259_8c-source.html#l00081">irqDisable()</a>, and <a class="el" href="8259_8c-source.html#l00067">irqEnable()</a>.
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