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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>VLSI Solution Oy Evaluation MP3 Player Source Code Documentation</title><link href="doxygen.css" rel="stylesheet" type="text/css"><img src="vlsi_small.gif" hspace="20" bordercolor="#ffffff" alt="VLSI Solution Oy"><b>VLSI Solution Oy Evaluation MP3 Player Source Code Documentation</b><p></p></head><body><!-- Generated by Doxygen 1.3.7 --><div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="annotated.html">Class List</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> | <a class="qindex" href="pages.html">Related Pages</a></div><h1>storage.h File Reference</h1>Disk read/write routines. <a href="#_details">More...</a><p><p>This graph shows which files directly or indirectly include this file:<p><center><img src="storage_8h__dep__incl.png" border="0" usemap="#storage.hdep_map" alt="Included by dependency graph"></center><map name="storage.hdep_map"><area href="filesys_8c.html" shape="rect" coords="6,18,62,42" alt=""><area href="mmc_8c.html" shape="rect" coords="86,18,134,42" alt=""><area href="player_8c.html" shape="rect" coords="158,18,212,42" alt=""><area href="record_8c.html" shape="rect" coords="235,18,289,42" alt=""><area href="storage_8c.html" shape="rect" coords="313,18,374,42" alt=""><area href="vs10xx_8c.html" shape="rect" coords="398,18,457,42" alt=""></map><p><a href="storage_8h-source.html">Go to the source code of this file.</a><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>unsigned char </td><td class="memItemRight" valign=bottom><a class="el" href="storage_8h.html#a0">InitStorage</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize the storage system. <a href="#a0"></a><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>unsigned char </td><td class="memItemRight" valign=bottom><a class="el" href="storage_8h.html#a1">PrepareToReadDiskSector</a> (unsigned long sectorN)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Give a hint to the storage that the next sector we will read is sectorN. <a href="#a1"></a><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>unsigned char </td><td class="memItemRight" valign=bottom><a class="el" href="storage_8h.html#a2">ReadDiskSector</a> (unsigned long sectorN)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Read a disk sector to global buffer. <a href="#a2"></a><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="storage_8h.html#a3">DumpDiskSector</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Do a hex dump on console of current sector in memory. <a href="#a3"></a><br><br></td></tr><tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="storage_8h.html#a4">WriteDiskSector</a> (unsigned long sectorN)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Write current buffer memory to sectorN. <a href="#a4"></a><br><br></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>Disk read/write routines. <p>Implemented Disk interface: MMC. This module reads and writes blocks of disk data to/from a global buffer. The logical place to define these globals is where they are needed most: the module that contains the file system functions. By default that means <a class="el" href="filesys_8c.html">filesys.c</a>. These globals are needed (see <a class="el" href="filesys_8h.html">filesys.h</a>):<ul><li>sectorAddress - contains the absolute disk sector number</li><li>diskSect[512] for data read/write</li></ul><p>Definition in file <a class="el" href="storage_8h-source.html">storage.h</a>.<hr><h2>Function Documentation</h2><a class="anchor" name="a3" doxytag="storage.h::DumpDiskSector" ></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> void DumpDiskSector </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td><p>Do a hex dump on console of current sector in memory. <p><p>Definition at line <a class="el" href="storage_8c-source.html#l00141">141</a> of file <a class="el" href="storage_8c-source.html">storage.c</a>.<p>References <a class="el" href="buffer_8h-source.html#l00107">DiskBlock::Raw::buf</a>, <a class="el" href="buffer_8c-source.html#l00010">diskSect</a>, <a class="el" href="buffer_8h-source.html#l00129">Address::l</a>, <a class="el" href="board_8h-source.html#l00280">Public</a>, <a class="el" href="unionDiskBlock.html#o1">DiskBlock::raw</a>, and <a class="el" href="buffer_8c-source.html#l00015">sectorAddress</a>.<p><pre class="fragment"><div>00141 {00142 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ha,la;00143 00144 ConsoleWrite(<span class="stringliteral">"\rDiskBlock "</span>);00145 ConsolePutUInt(<a class="code" href="buffer_8c.html#a2">sectorAddress</a>.<a class="code" href="unionAddress.html#o0">l</a>);00146 ConsoleWrite(<span class="stringliteral">":\r"</span>);00147 <span class="keywordflow">for</span> (ha=0; ha<32; ha++){00148 ConsolePutHex16 ((ha<<4));00149 ConsoleWrite(<span class="stringliteral">": "</span>);00150 <span class="keywordflow">for</span> (la=0; la<16; la++){00151 ConsolePutHex8(<a class="code" href="buffer_8c.html#a0">diskSect</a>.<a class="code" href="unionDiskBlock.html#o1">raw</a>.<a class="code" href="structDiskBlock_1_1Raw.html#o0">buf</a>[(ha<<4)+la]);00152 ConsolePutChar(<span class="charliteral">' '</span>);00153 <span class="keywordflow">if</span> (la==7){ 00154 ConsolePutChar(<span class="charliteral">' '</span>);00155 }00156 }00157 ConsolePutChar(<span class="charliteral">' '</span>);00158 <span class="keywordflow">for</span> (la=0; la<16; la++){00159 <span class="keywordflow">if</span> ((<a class="code" href="buffer_8c.html#a0">diskSect</a>.<a class="code" href="unionDiskBlock.html#o1">raw</a>.<a class="code" href="structDiskBlock_1_1Raw.html#o0">buf</a>[(ha<<4)+la]) > 30){00160 ConsolePutChar(<a class="code" href="buffer_8c.html#a0">diskSect</a>.<a class="code" href="unionDiskBlock.html#o1">raw</a>.<a class="code" href="structDiskBlock_1_1Raw.html#o0">buf</a>[(ha<<4)+la]);00161 }<span class="keywordflow">else</span>{00162 ConsolePutChar(<span class="charliteral">'.'</span>);00163 }00164 }00165 ConsolePutChar(<span class="charliteral">'\r'</span>);00166 } 00167 }</div></pre> </td> </tr></table><a class="anchor" name="a0" doxytag="storage.h::InitStorage" ></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> unsigned char InitStorage </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing=5 cellpadding=0 border=0> <tr> <td> </td> <td><p>Initialize the storage system. <p><ul><li>returns 0 when successful</li><li>returns 1 if mmc was not properly initialized </li></ul><p>Definition at line <a class="el" href="storage_8c-source.html#l00043">43</a> of file <a class="el" href="storage_8c-source.html">storage.c</a>.<p>References <a class="el" href="mmc_8c-source.html#l00246">InitMMC()</a>, <a class="el" href="board_8h-source.html#l00280">Public</a>, and <a class="el" href="mmc_8h-source.html#l00008">storageFlags</a>.<p>Referenced by <a class="el" href="filesys_8c-source.html#l00923">InitFileSystem()</a>.<p><pre class="fragment"><div>00043 {00044 00045 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> result;00046 00047 ConsoleWrite (<span class="stringliteral">"Init: Storage v2: supports: MMC,SD,miniSD in SPI mode\r"</span>);00048 00049 result=<a class="code" href="mmc_8c.html#a5">InitMMC</a>();00050 <span class="keywordflow">if</span> (result==0x0e){ <span class="comment">//ok, no support for seek-before-read</span>00051 ConsoleWrite(<span class="stringliteral">"Storage initialized in seek-and-read mode.\r"</span>);00052 <a class="code" href="mmc_8h.html#a0">storageFlags</a> = 1;00053 <span class="keywordflow">return</span> 0;00054 }00055 00056 <span class="keywordflow">if</span> (result){ <span class="comment">//error resulted in MMC startup</span>00057 ConsoleWrite(<span class="stringliteral">"InitStorage: Can't start MMC. "</span>);00058 ConsolePutHex8(result);00059 ConsolePutChar(13);00060 <a class="code" href="mmc_8h.html#a0">storageFlags</a> = 4;00061 <span class="keywordflow">return</span> 1; <span class="comment">//MMC Init Error</span>00062 }00063 00064 ConsoleWrite(<span class="stringliteral">"InitStorage ok.\r"</span>);00065 <a class="code" href="mmc_8h.html#a0">storageFlags</a> = 0;00066 <span class="keywordflow">return</span> 0;00067 00068 }</div></pre><p>Here is the call graph for this function:<p><center><img src="storage_8h_a0_cgraph.png" border="0" usemap="#storage_8h_a0_cgraph_map" alt=""></center><map name="storage_8h_a0_cgraph_map"><area href="mmc_8c.html#a5" shape="rect" coords="137,132,193,156" alt=""><area href="board_8h.html#a51" shape="rect" coords="632,35,672,59" alt=""><area href="mmc_8c.html#a3" shape="rect" coords="418,200,554,224" alt=""><area href="mmc_8c.html#a0" shape="rect" coords="604,169,700,193" alt=""><area href="mmc_8c.html#a9" shape="rect" coords="243,156,368,180" alt=""><area href="mmc_8c.html#a4" shape="rect" coords="446,65,526,89" alt=""><area href="mmc_8h.html#a2" shape="rect" coords="267,108,344,132" alt=""></map> </td> </tr></table><a class="anchor" name="a1" doxytag="storage.h::PrepareToReadDiskSector" ></a><p><table class="mdTable" width="100%" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"> unsigned char PrepareToReadDiskSector </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">unsigned long </td> <td class="mdname1" valign="top" nowrap> <em>sectorN</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table>?? 快捷鍵說明
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