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<!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>Copley Motion Library: Firmware.cpp Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.4 --><div class="qindex"><a class="qindex" href="main.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a></div><div class="nav"><a class="el" href="dir_000000.html">c</a></div><h1>Firmware.cpp</h1><a href="Firmware_8cpp.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">/* */</span><a name="l00003"></a>00003 <span class="comment">/* Copley Motion Libraries */</span><a name="l00004"></a>00004 <span class="comment">/* */</span><a name="l00005"></a>00005 <span class="comment">/* Author: Stephen Glow */</span><a name="l00006"></a>00006 <span class="comment">/* */</span><a name="l00007"></a>00007 <span class="comment">/* Copyright (c) 2002-2005 Copley Controls Corp. */</span><a name="l00008"></a>00008 <span class="comment">/* http://www.copleycontrols.com */</span><a name="l00009"></a>00009 <span class="comment">/* */</span><a name="l00010"></a>00010 <span class="comment">/************************************************************/</span><a name="l00011"></a>00011 <span class="comment"></span><a name="l00012"></a>00012 <span class="comment">/** \file </span><a name="l00013"></a>00013 <span class="comment">*/</span><a name="l00014"></a>00014 <a name="l00015"></a>00015 <span class="preprocessor">#include <stdio.h></span><a name="l00016"></a>00016 <span class="preprocessor">#include "<a class="code" href="CML__Firmware_8h.html">CML_Firmware.h</a>"</span><a name="l00017"></a>00017 <span class="preprocessor">#ifdef CML_FILE_ACCESS_OK</span><a name="l00018"></a>00018 <span class="preprocessor"></span><a name="l00019"></a>00019 <a class="code" href="CML__Settings_8h.html#a13">CML_NAMESPACE_USE</a>();<a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="comment">/* local defines */</span><a name="l00022"></a>00022 <span class="preprocessor">#define CFF_MAGIC 0x03281995</span><a name="l00023"></a>00023 <span class="preprocessor"></span><a name="l00024"></a>00024 <span class="comment">/* Firmware error objects */</span><a name="l00025"></a>00025 <a class="code" href="CML__Error_8h.html#a0">CML_NEW_ERROR</a>( <a class="code" href="classFirmwareError.html">FirmwareError</a>, open, <span class="stringliteral">"Unable to open firmware file"</span> );<a name="l00026"></a>00026 <a class="code" href="CML__Error_8h.html#a0">CML_NEW_ERROR</a>( <a class="code" href="classFirmwareError.html">FirmwareError</a>, read, <span class="stringliteral">"Error reading from firmware file"</span>);<a name="l00027"></a>00027 <a class="code" href="CML__Error_8h.html#a0">CML_NEW_ERROR</a>( <a class="code" href="classFirmwareError.html">FirmwareError</a>, format, <span class="stringliteral">"Firmware file formatting error"</span>);<a name="l00028"></a>00028 <a class="code" href="CML__Error_8h.html#a0">CML_NEW_ERROR</a>( <a class="code" href="classFirmwareError.html">FirmwareError</a>, crc, <span class="stringliteral">"Firmware file CRC mismatch"</span>);<a name="l00029"></a>00029 <a class="code" href="CML__Error_8h.html#a0">CML_NEW_ERROR</a>( <a class="code" href="classFirmwareError.html">FirmwareError</a>, alloc, <span class="stringliteral">"Unable to allocate data array"</span>);<a name="l00030"></a>00030 <a name="l00031"></a>00031 <span class="comment">/* local types */</span><a name="l00032"></a>00032 <span class="keyword">class </span>File<a name="l00033"></a>00033 {<a name="l00034"></a>00034 FILE *fp;<a name="l00035"></a>00035 <span class="keywordtype">bool</span> bigEndian;<a name="l00036"></a>00036 <span class="keyword">public</span>:<a name="l00037"></a>00037 File( <span class="keywordtype">void</span> ){ fp = 0; }<a name="l00038"></a>00038 ~File(){ Close(); }<a name="l00039"></a>00039 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *Open( <span class="keyword">const</span> <span class="keywordtype">char</span> *name );<a name="l00040"></a>00040 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *ReadInt16( <a class="code" href="CML__Utils_8h.html#a8">uint16</a> &d );<a name="l00041"></a>00041 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *ReadInt32( <a class="code" href="CML__Utils_8h.html#a10">uint32</a> &d );<a name="l00042"></a>00042 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *Seek( <a class="code" href="CML__Utils_8h.html#a10">uint32</a> pos );<a name="l00043"></a>00043 <a class="code" href="CML__Utils_8h.html#a10">uint32</a> CRC32( <span class="keywordtype">void</span> );<a name="l00044"></a>00044 <span class="keywordtype">void</span> Close()<a name="l00045"></a>00045 {<a name="l00046"></a>00046 <span class="keywordflow">if</span>( fp ) fclose(fp);<a name="l00047"></a>00047 fp = 0;<a name="l00048"></a>00048 }<a name="l00049"></a>00049 <span class="keywordtype">void</span> setSwap( <span class="keywordtype">bool</span> big )<a name="l00050"></a>00050 {<a name="l00051"></a>00051 bigEndian = big;<a name="l00052"></a>00052 }<a name="l00053"></a>00053 };<a name="l00054"></a>00054 <a name="l00055"></a>00055 <span class="comment">/***************************************************************************/</span><span class="comment"></span><a name="l00056"></a>00056 <span class="comment">/**</span><a name="l00057"></a>00057 <span class="comment">Destructor for firmware object. Deallocates the data array if one was </span><a name="l00058"></a>00058 <span class="comment">allocated.</span><a name="l00059"></a>00059 <span class="comment">*/</span><a name="l00060"></a>00060 <span class="comment">/***************************************************************************/</span><a name="l00061"></a>00061 Firmware::~Firmware( <span class="keywordtype">void</span> )<a name="l00062"></a>00062 {<a name="l00063"></a>00063 <span class="keywordflow">if</span>( data )<a name="l00064"></a>00064 <span class="keyword">delete</span> data;<a name="l00065"></a>00065 }<a name="l00066"></a>00066 <a name="l00067"></a>00067 <span class="comment">/***************************************************************************/</span><span class="comment"></span><a name="l00068"></a>00068 <span class="comment">/**</span><a name="l00069"></a>00069 <span class="comment">Load the firmware image from a file.</span><a name="l00070"></a>00070 <span class="comment">@param name Name of the file to load</span><a name="l00071"></a>00071 <span class="comment">@return An error object.</span><a name="l00072"></a>00072 <span class="comment">*/</span><a name="l00073"></a>00073 <span class="comment">/***************************************************************************/</span><a name="l00074"></a>00074 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *Firmware::Load( <span class="keyword">const</span> <span class="keywordtype">char</span> *name )<a name="l00075"></a>00075 {<a name="l00076"></a>00076 <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *err;<a name="l00077"></a>00077 File f;<a name="l00078"></a>00078 <a name="l00079"></a>00079 <a class="code" href="CML__Utils_8h.html#a10">uint32</a> magic, crc;<a name="l00080"></a>00080 <a name="l00081"></a>00081 <span class="comment">// Open the file</span><a name="l00082"></a>00082 err = f.Open( name );<a name="l00083"></a>00083 f.setSwap(<span class="keyword">true</span>);<a name="l00084"></a>00084 <a name="l00085"></a>00085 <span class="comment">// Read the magic number</span><a name="l00086"></a>00086 <span class="keywordflow">if</span>( !err ) err = f.ReadInt32( magic );<a name="l00087"></a>00087 <span class="keywordflow">if</span>( !err ) err = f.ReadInt32( crc );<a name="l00088"></a>00088 <span class="keywordflow">if</span>( err ) <span class="keywordflow">return</span> err;<a name="l00089"></a>00089 <a name="l00090"></a>00090 <span class="keywordflow">if</span>( magic != CFF_MAGIC )<a name="l00091"></a>00091 <span class="keywordflow">return</span> &<a class="code" href="classFirmwareError.html#s2">FirmwareError::format</a>;<a name="l00092"></a>00092 <a name="l00093"></a>00093 <span class="keywordflow">if</span>( crc != f.CRC32() )<a name="l00094"></a>00094 <span class="keywordflow">return</span> &<a class="code" href="classFirmwareError.html#s3">FirmwareError::crc</a>;<a name="l00095"></a>00095 <a name="l00096"></a>00096 <span class="comment">// Read the rest of the header</span><a name="l00097"></a>00097 err = f.Seek( 8 );<a name="l00098"></a>00098 <span class="keywordflow">if</span>( !err ) err = f.ReadInt16( fileVersion );<a name="l00099"></a>00099 <span class="keywordflow">if</span>( !err ) err = f.ReadInt16( ampType );<a name="l00100"></a>00100 <span class="keywordflow">if</span>( !err ) err = f.Seek( 20 );<a name="l00101"></a>00101 <span class="keywordflow">if</span>( !err ) err = f.ReadInt32( start );<a name="l00102"></a>00102 <span class="keywordflow">if</span>( !err ) err = f.ReadInt32( length );<a name="l00103"></a>00103 <span class="keywordflow">if</span>( !err ) err = f.Seek( 256 );<a name="l00104"></a>00104 <span class="keywordflow">if</span>( err ) <span class="keywordflow">return</span> err;<a name="l00105"></a>00105 <a name="l00106"></a>00106 <span class="comment">// We don't support firmware files before type 1</span><a name="l00107"></a>00107 <span class="keywordflow">if</span>( fileVersion < 1 )<a name="l00108"></a>00108 <span class="keywordflow">return</span> &<a class="code" href="classFirmwareError.html#s2">FirmwareError::format</a>;<a name="l00109"></a>00109 <a name="l00110"></a>00110 <span class="comment">// Check for a reasonable amplifier type:</span><a name="l00111"></a>00111 <span class="comment">// 0 - Accelus (not supported)</span><a name="l00112"></a>00112 <span class="comment">// 1 - Junus (not supported)</span><a name="l00113"></a>00113 <span class="comment">// 2 - Accelnet / Xenus / Stepnet</span><a name="l00114"></a>00114 <span class="comment">// 3 - Newer amp line using different DSP</span><a name="l00115"></a>00115 <span class="comment">// 4 - I/O module</span><a name="l00116"></a>00116 <span class="keywordflow">if</span>( ampType < 2 )<a name="l00117"></a>00117 <span class="keywordflow">return</span> &<a class="code" href="classFirmwareError.html#s2">FirmwareError::format</a>;<a name="l00118"></a>00118 <a name="l00119"></a>00119 <span class="comment">// Allocate an array to hold the amplifier data</span><a name="l00120"></a>00120 data = <span class="keyword">new</span> <a class="code" href="CML__Utils_8h.html#a8">uint16</a>[ length ];<a name="l00121"></a>00121 <span class="keywordflow">if</span>( !data ) <span class="keywordflow">return</span> &<a class="code" href="classFirmwareError.html#s4">FirmwareError::alloc</a>;<a name="l00122"></a>00122 <a name="l00123"></a>00123 <span class="keywordflow">for</span>( <a class="code" href="CML__Utils_8h.html#a10">uint32</a> i=0; i<length; i++ )<a name="l00124"></a>00124 {<a name="l00125"></a>00125 err = f.ReadInt16( data[i] );<a name="l00126"></a>00126 <span class="keywordflow">if</span>( err ) <span class="keywordflow">return</span> err;⌨️ 快捷键说明
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