ata_8h-source.html

ATMEL的AVR单片机库文件

00092 <span class="preprocessor"></span><span class="preprocessor">#define ATA_DISKPARM_SECTORS    0x11    // number of sectors per head per cylinder</span>
00093 <span class="preprocessor"></span>
00094 <span class="comment">// ATA Identity fields</span>
00095 <span class="comment">// all offsets refer to word offset (2 byte increments)</span>
00096 <span class="preprocessor">#define ATA_IDENT_DEVICETYPE    0       // specifies ATA/ATAPI, removable/non-removable</span>
00097 <span class="preprocessor"></span><span class="preprocessor">#define ATA_IDENT_CYLINDERS     1       // number of logical cylinders</span>
00098 <span class="preprocessor"></span><span class="preprocessor">#define ATA_IDENT_HEADS         3       // number of logical heads</span>
00099 <span class="preprocessor"></span><span class="preprocessor">#define ATA_IDENT_SECTORS       6       // number of sectors per track</span>
00100 <span class="preprocessor"></span><span class="preprocessor">#define ATA_IDENT_SERIAL        10      // drive model name (20 characters)</span>
00101 <span class="preprocessor"></span><span class="preprocessor">#define ATA_IDENT_MODEL         27      // drive model name (40 characters)</span>
00102 <span class="preprocessor"></span><span class="preprocessor">#define ATA_IDENT_FIELDVALID    53      // indicates field validity of higher words (bit0: words54-58, bit1: words 64-70)</span>
00103 <span class="preprocessor"></span><span class="preprocessor">#define ATA_IDENT_LBASECTORS    60      // number of sectors in LBA translation mode</span>
00104 <span class="preprocessor"></span>
00105 <span class="comment">// drive mode defines (for ataSetDrivePowerMode() )</span>
00106 <span class="preprocessor">#define ATA_DISKMODE_SPINDOWN   0</span>
00107 <span class="preprocessor"></span><span class="preprocessor">#define ATA_DISKMODE_SPINUP     1</span>
00108 <span class="preprocessor"></span><span class="preprocessor">#define ATA_DISKMODE_SETTIMEOUT 2</span>
00109 <span class="preprocessor"></span><span class="preprocessor">#define ATA_DISKMODE_SLEEP      3</span>
00110 <span class="preprocessor"></span>
00111 <span class="comment">// typedefs</span>
00112 <span class="comment">// drive info structure</span>
00113 <span class="keyword">typedef</span> <span class="keyword">struct </span>
00114 <span class="keyword"></span>{
00115     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>  cylinders;
00116     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> heads;
00117     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> sectors;
00118     <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> sizeinsectors;
00119     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> LBAsupport;
00120     <span class="keywordtype">char</span> model[41];
00121 } typeDriveInfo;
00122 
00123 
00124 <span class="comment">// Prototypes</span>
00125 <span class="keywordtype">void</span> ataInit(<span class="keywordtype">void</span>);
00126 <span class="keywordtype">void</span> ataDriveInit(<span class="keywordtype">void</span>);
00127 <span class="keywordtype">void</span> ataDriveSelect(u08 DriveNo);
00128 <span class="keywordtype">void</span> ataSetDrivePowerMode(u08 DriveNo, u08 mode, u08 timeout);
00129 u08  ataReadByte(u08 reg);
00130 <span class="keywordtype">void</span> ataWriteByte(u08 reg, u08 data);
00131 <span class="keywordtype">void</span> ataShowRegisters(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> DriveNo);
00132 u08  ataSWReset(<span class="keywordtype">void</span>);
00133 <span class="keywordtype">void</span> ataDiskErr(<span class="keywordtype">void</span>);
00134 <span class="keywordtype">void</span> ataPrintSector( u08 *Buffer);
00135 <span class="keywordtype">void</span> ataReadDataBuffer(u08 *Buffer, u16 numBytes);
00136 <span class="keywordtype">void</span> ataWriteDataBuffer(u08 *Buffer, u16 numBytes);
00137 u08 ataStatusWait(u08 mask, u08 waitStatus);
00138 
00139 <span class="comment">// read and write routines for CHS based drives</span>
00140 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ataReadSectorsCHS(    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Drive, 
00141                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Head, 
00142                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Track,
00143                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Sector,
00144                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numsectors,
00145                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *Buffer);
00146 
00147 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ataWriteSectorsCHS(   <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Drive, 
00148                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Head, 
00149                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Track,
00150                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Sector,
00151                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numsectors,
00152                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *Buffer);
00153 
00154 <span class="comment">// read and write routines for LBA based drives</span>
00155 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ataReadSectorsLBA(    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Drive, 
00156                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> lba,
00157                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numsectors,
00158                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *Buffer);
00159 
00160 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ataWriteSectorsLBA(   <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Drive, 
00161                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> lba,
00162                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numsectors,
00163                                     <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *Buffer);
00164 
00165 <span class="comment">// generic read and write routines using LBA</span>
00166 <span class="comment">//   uses native or translated LBA addressing</span>
00167 <span class="comment">//   given autodetected drive type</span>
00168 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ataReadSectors(   <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Drive, 
00169                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> lba,
00170                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numsectors,
00171                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *Buffer);
00172 
00173 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> ataWriteSectors(  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> Drive, 
00174                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> lba,
00175                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> numsectors,
00176                                 <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *Buffer);
00177 
00178 <span class="comment">//unsigned char IdentifyDrive(unsigned char DriveNo,  unsigned char *Buffer, tdefDriveInfo *DriveInfo);</span>
00179 <span class="comment">//unsigned char SetMode(unsigned char DriveNo, unsigned char Mode, unsigned char PwrDown);</span>
00180 <span class="comment">//unsigned char ATA_Idle(unsigned char Drive);</span>
00181 
00182 <span class="preprocessor">#endif</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Fri Oct 15 03:50:21 2004 for Procyon AVRlib by
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</a>1.3.6 </small></address>
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