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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_7b0469299ccbf4a3a403496996173710.html">sys</a></div>
<h1>io.c</h1><a href="io_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (c) 2002-2005 The UbixOS Project</span>
<a name="l00003"></a>00003 <span class="comment"> All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00006"></a>00006 <span class="comment"> permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment"> Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00009"></a>00009 <span class="comment"> conditions, the following disclaimer and the list of authors. Redistributions in binary</span>
<a name="l00010"></a>00010 <span class="comment"> form must reproduce the above copyright notice, this list of conditions, the following</span>
<a name="l00011"></a>00011 <span class="comment"> disclaimer and the list of authors in the documentation and/or other materials provided</span>
<a name="l00012"></a>00012 <span class="comment"> with the distribution. Neither the name of the UbixOS Project nor the names of its</span>
<a name="l00013"></a>00013 <span class="comment"> contributors may be used to endorse or promote products derived from this software</span>
<a name="l00014"></a>00014 <span class="comment"> without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY</span>
<a name="l00017"></a>00017 <span class="comment"> EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span>
<a name="l00018"></a>00018 <span class="comment"> MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span>
<a name="l00019"></a>00019 <span class="comment"> THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00020"></a>00020 <span class="comment"> SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span>
<a name="l00021"></a>00021 <span class="comment"> OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span>
<a name="l00022"></a>00022 <span class="comment"> HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR</span>
<a name="l00023"></a>00023 <span class="comment"> TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00024"></a>00024 <span class="comment"> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> $Id: io_8c-source.html 88 2016-01-12 00:11:29Z reddawg $</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">*****************************************************************************************/</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="io_8h.html">sys/io.h</a>></span>
<a name="l00031"></a>00031
<a name="l00039"></a><a class="code" href="io_8c.html#af23f1fbc404bc35bda28093de44de3c">00039</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> <a class="code" href="io_8h.html#77b934268de1b3ecdcf3f275413b3108">inportByte</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port) {
<a name="l00040"></a>00040 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> retVal;
<a name="l00041"></a>00041 <span class="keyword">asm</span> <span class="keyword">volatile</span>(
<a name="l00042"></a>00042 <span class="stringliteral">"inb %%dx,%%al"</span>
<a name="l00043"></a>00043 : <span class="stringliteral">"=a"</span> (retVal)
<a name="l00044"></a>00044 : <span class="stringliteral">"d"</span> (port)
<a name="l00045"></a>00045 );
<a name="l00046"></a>00046 <span class="keywordflow">return</span>(retVal);
<a name="l00047"></a>00047 }
<a name="l00048"></a>00048
<a name="l00056"></a><a class="code" href="io_8c.html#e3d5e82956e7a9c2ca5e812f532f6074">00056</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> <a class="code" href="io_8h.html#fb703b187feb4b92444454df6c3dd9e6">inportWord</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port) {
<a name="l00057"></a>00057 <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> retVal;
<a name="l00058"></a>00058 <span class="keyword">asm</span> <span class="keyword">volatile</span>(
<a name="l00059"></a>00059 <span class="stringliteral">"inw %%dx,%%ax"</span>
<a name="l00060"></a>00060 : <span class="stringliteral">"=a"</span> (retVal)
<a name="l00061"></a>00061 : <span class="stringliteral">"d"</span> (port)
<a name="l00062"></a>00062 );
<a name="l00063"></a>00063 <span class="keywordflow">return</span>(retVal);
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00073"></a><a class="code" href="io_8c.html#f28ebc45a7edfcfa426f4161983f857d">00073</a> <span class="keywordtype">void</span> <a class="code" href="io_8h.html#8acc1a06073db2e7b92ffbd00fbd0cf1">outportByte</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port,<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> value) {
<a name="l00074"></a>00074 <span class="keyword">asm</span> <span class="keyword">volatile</span>(
<a name="l00075"></a>00075 <span class="stringliteral">"outb %%al,%%dx"</span>
<a name="l00076"></a>00076 :
<a name="l00077"></a>00077 : <span class="stringliteral">"d"</span> (port), <span class="stringliteral">"a"</span> (value)
<a name="l00078"></a>00078 );
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00088"></a><a class="code" href="io_8c.html#f0c1dd5717007bf73b6c5119dfe7eaf2">00088</a> <span class="keywordtype">void</span> <a class="code" href="io_8h.html#f0c1dd5717007bf73b6c5119dfe7eaf2">outportByteP</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port,<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> value) {
<a name="l00089"></a>00089 <span class="keyword">asm</span> <span class="keyword">volatile</span>(
<a name="l00090"></a>00090 <span class="stringliteral">"outb %%al,%%dx\n"</span>
<a name="l00091"></a>00091 <span class="stringliteral">"outb %%al,$0x80\n"</span>
<a name="l00092"></a>00092 :
<a name="l00093"></a>00093 : <span class="stringliteral">"d"</span> (port), <span class="stringliteral">"a"</span> (value)
<a name="l00094"></a>00094 );
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096
<a name="l00104"></a><a class="code" href="io_8c.html#83686182f83df195d065a6a45232e644">00104</a> <span class="keywordtype">void</span> <a class="code" href="io_8h.html#243f6b6d22cc5948908b764d58efc2b0">outportWord</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port,<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> value) {
<a name="l00105"></a>00105 <span class="keyword">asm</span> <span class="keyword">volatile</span>(
<a name="l00106"></a>00106 <span class="stringliteral">"outw %%ax,%%dx"</span>
<a name="l00107"></a>00107 :
<a name="l00108"></a>00108 : <span class="stringliteral">"d"</span> (port), <span class="stringliteral">"a"</span> (value)
<a name="l00109"></a>00109 );
<a name="l00110"></a>00110 }
<a name="l00111"></a>00111
<a name="l00119"></a><a class="code" href="io_8c.html#2e2ad8d744ae4b35ea37d39dcfea1296">00119</a> <span class="keywordtype">void</span> <a class="code" href="io_8h.html#2e2ad8d744ae4b35ea37d39dcfea1296">outportDWord</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port,<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> value) {
<a name="l00120"></a>00120 <span class="keyword">asm</span> <span class="keyword">volatile</span>(
<a name="l00121"></a>00121 <span class="stringliteral">"outl %%eax,%%dx"</span>
<a name="l00122"></a>00122 :
<a name="l00123"></a>00123 : <span class="stringliteral">"d"</span> (port), <span class="stringliteral">"a"</span> (value)
<a name="l00124"></a>00124 );
<a name="l00125"></a>00125 }
<a name="l00126"></a>00126
<a name="l00134"></a><a class="code" href="io_8c.html#99e868cf7689cdc2fe248505f2c5cb16">00134</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="io_8h.html#8d6617406b264c7f9e143adab8406791">inportDWord</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> port) {
<a name="l00135"></a>00135 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> retVal;
<a name="l00136"></a>00136 <span class="keyword">asm</span> <span class="keyword">volatile</span>(
<a name="l00137"></a>00137 <span class="stringliteral">"inl %%dx,%%eax"</span>
<a name="l00138"></a>00138 : <span class="stringliteral">"=a"</span> (retVal)
<a name="l00139"></a>00139 : <span class="stringliteral">"d"</span> (port)
<a name="l00140"></a>00140 );
<a name="l00141"></a>00141 <span class="keywordflow">return</span>(retVal);
<a name="l00142"></a>00142 }
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="comment">/***</span>
<a name="l00145"></a>00145 <span class="comment"> END</span>
<a name="l00146"></a>00146 <span class="comment"> ***/</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Fri Dec 15 11:18:55 2006 for UbixOS V2 by
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