tristan/ZealOS
1
0
Fork 0
mirror of https://github.com/Zeal-Operating-System/ZealOS.git synced 2024-12-30 17:26:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions
ZealOS/docs/Kernel/BlkDev/DiskBlk.CC.html
TomAwezome 1b75d91002 Fix Mount AHCI Port selection. 
Add arg to SATARep to specify drive types to show.
Add checks in AHCIPortInit to verify port signatures, add helper method to get signatures from port.
2021-08-02 16:40:05 -04:00

162 lines
15 KiB
HTML
Executable file
Raw Blame History

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=US-ASCII">
<meta name="generator" content="ZealOS V0.13">
<style type="text/css">
body {background-color:#fef1f0;}
.cF0{color:#000000;background-color:#fef1f0;}
.cF1{color:#0148a4;background-color:#fef1f0;}
.cF2{color:#3b7901;background-color:#fef1f0;}
.cF3{color:#057c7e;background-color:#fef1f0;}
.cF4{color:#bb2020;background-color:#fef1f0;}
.cF5{color:#9e42ae;background-color:#fef1f0;}
.cF6{color:#b57901;background-color:#fef1f0;}
.cF7{color:#b2b6af;background-color:#fef1f0;}
.cF8{color:#555753;background-color:#fef1f0;}
.cF9{color:#678fbb;background-color:#fef1f0;}
.cFA{color:#82bc49;background-color:#fef1f0;}
.cFB{color:#0097a2;background-color:#fef1f0;}
.cFC{color:#e26a6a;background-color:#fef1f0;}
.cFD{color:#c671bc;background-color:#fef1f0;}
.cFE{color:#c7ab00;background-color:#fef1f0;}
.cFF{color:#fef1f0;background-color:#fef1f0;}
</style>
</head>
<body>
<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF0>#</span><span class=cF1>define</span><span class=cF0> ZERO_BUF_SIZE </span><span class=cFE>2048</span><span class=cF0>
<a name="l2"></a></span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>BlkWriteZero</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF9>I64</span><span class=cF0> blk, </span><span class=cF9>I64</span><span class=cF0> count)
<a name="l3"></a>{</span><span class=cF2>//Fill blk count with zeros in Drive.</span><span class=cF0>
<a name="l4"></a> </span><span class=cF9>I64</span><span class=cF0> n;
<a name="l5"></a> </span><span class=cF1>U8</span><span class=cF0> *z = </span><span class=cF5>CAlloc</span><span class=cF0>(ZERO_BUF_SIZE &lt;&lt; </span><span class=cF3>BLK_SIZE_BITS</span><span class=cF0>);
<a name="l6"></a> </span><span class=cF1>Bool</span><span class=cF0> show_progress;
<a name="l7"></a>
<a name="l8"></a> </span><span class=cF1>if</span><span class=cF0> (count &gt; ZERO_BUF_SIZE &amp;&amp; drive-&gt;bd-&gt;type != </span><span class=cF3>BDT_RAM</span><span class=cF0>)
<a name="l9"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l10"></a> </span><span class=cFB>progress1</span><span class=cF0> = </span><span class=cFE>0</span><span class=cF0>;
<a name="l11"></a> </span><span class=cFB>progress1_max</span><span class=cF0> = count;
<a name="l12"></a> </span><span class=cF5>StrCopy</span><span class=cF0>(</span><span class=cFB>progress1_desc</span><span class=cF0>, </span><span class=cF6>&quot;Zeroing&quot;</span><span class=cF0>);
<a name="l13"></a> show_progress = </span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l14"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l15"></a> </span><span class=cF1>else</span><span class=cF0>
<a name="l16"></a> show_progress = </span><span class=cF3>FALSE</span><span class=cF0>;
<a name="l17"></a> </span><span class=cF1>while</span><span class=cF0> (count &gt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l18"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l19"></a> n = count;
<a name="l20"></a> </span><span class=cF1>if</span><span class=cF0> (n &gt; ZERO_BUF_SIZE)
<a name="l21"></a> n = ZERO_BUF_SIZE;
<a name="l22"></a> </span><span class=cF5>BlkWrite</span><span class=cF0>(drive, z, blk, n);
<a name="l23"></a> blk += n;
<a name="l24"></a> count -= n;
<a name="l25"></a> </span><span class=cF1>if</span><span class=cF0> (show_progress)
<a name="l26"></a> </span><span class=cFB>progress1</span><span class=cF0> += n;
<a name="l27"></a> </span><span class=cF5>Yield</span><span class=cF0>; </span><span class=cF2>//Prevent locking</span><span class=cF0>
<a name="l28"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l29"></a> </span><span class=cF5>Free</span><span class=cF0>(z);
<a name="l30"></a> </span><span class=cF1>if</span><span class=cF0> (show_progress)
<a name="l31"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l32"></a> *</span><span class=cFB>progress1_desc</span><span class=cF0> = </span><span class=cFE>0</span><span class=cF0>;
<a name="l33"></a> </span><span class=cFB>progress1</span><span class=cF0> = </span><span class=cFB>progress1_max</span><span class=cF0> = </span><span class=cFE>0</span><span class=cF0>;
<a name="l34"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l35"></a>}
<a name="l36"></a>
<a name="l37"></a></span><span class=cF1>Bool</span><span class=cF0> </span><span class=cF5>BlkRead</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF1>U8</span><span class=cF0> *buf, </span><span class=cF9>I64</span><span class=cF0> blk, </span><span class=cF9>I64</span><span class=cF0> count)
<a name="l38"></a>{</span><span class=cF2>//Read blk count from Drive to buf.</span><span class=cF0>
<a name="l39"></a> </span><span class=cF1>Bool</span><span class=cF0> res = </span><span class=cF3>TRUE</span><span class=cF0>, unlock;
<a name="l40"></a> </span><span class=cF9>CBlkDev</span><span class=cF0> *bd = drive-&gt;bd;
<a name="l41"></a>
<a name="l42"></a> </span><span class=cF1>if</span><span class=cF0> (count &lt;= </span><span class=cFE>0</span><span class=cF0>)
<a name="l43"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l44"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(drive);
<a name="l45"></a> </span><span class=cF1>try</span><span class=cF0>
<a name="l46"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l47"></a> unlock = </span><span class=cF5>DriveLock</span><span class=cF0>(drive);
<a name="l48"></a> </span><span class=cFD>BlkDevInit</span><span class=cF0>(bd);
<a name="l49"></a> </span><span class=cF1>if</span><span class=cF0> (drive-&gt;drv_offset &amp;&amp; blk &lt; drive-&gt;drv_offset || blk + count &gt; drive-&gt;drv_offset + drive-&gt;size)
<a name="l50"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l51"></a> </span><span class=cF1>if</span><span class=cF0> (bd-&gt;flags &amp; </span><span class=cF3>BDF_READ_CACHE</span><span class=cF0>)
<a name="l52"></a> </span><span class=cFD>RCache</span><span class=cF0>(drive, &amp;buf, &amp;blk, &amp;count);
<a name="l53"></a> </span><span class=cF1>if</span><span class=cF0> (count &gt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l54"></a> {
<a name="l55"></a> </span><span class=cF1>switch</span><span class=cF0> (bd-&gt;type)
<a name="l56"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l57"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_RAM</span><span class=cF0>:
<a name="l58"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(buf, bd-&gt;RAM_disk + blk &lt;&lt; </span><span class=cF3>BLK_SIZE_BITS</span><span class=cF0>, count &lt;&lt; </span><span class=cF3>BLK_SIZE_BITS</span><span class=cF0>);
<a name="l59"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l60"></a>
<a name="l61"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ISO_FILE_READ</span><span class=cF0>:
<a name="l62"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ISO_FILE_WRITE</span><span class=cF0>:
<a name="l63"></a> </span><span class=cF5>FBlkRead</span><span class=cF0>(bd-&gt;file_disk, buf, blk, count);
<a name="l64"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l65"></a>
<a name="l66"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ATA</span><span class=cF0>:
<a name="l67"></a> res = </span><span class=cFD>AHCIAtaRBlks</span><span class=cF0>(drive, buf, blk, count);
<a name="l68"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l69"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ATAPI</span><span class=cF0>:
<a name="l70"></a> res = </span><span class=cFD>AHCIAtapiRBlks</span><span class=cF0>(drive, buf, blk, count);
<a name="l71"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l72"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l73"></a> bd-&gt;last_time = </span><span class=cF5>tS</span><span class=cF0>;
<a name="l74"></a> </span><span class=cF1>if</span><span class=cF0> (bd-&gt;flags &amp; </span><span class=cF3>BDF_READ_CACHE</span><span class=cF0>)
<a name="l75"></a> </span><span class=cFD>DiskCacheAdd</span><span class=cF0>(drive, buf, blk, count);
<a name="l76"></a> }
<a name="l77"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l78"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l79"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l80"></a> </span><span class=cF1>catch</span><span class=cF0>
<a name="l81"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l82"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l83"></a>
<a name="l84"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l85"></a>}
<a name="l86"></a>
<a name="l87"></a></span><span class=cF1>Bool</span><span class=cF0> </span><span class=cF5>BlkWrite</span><span class=cF0>(</span><span class=cF9>CDrive</span><span class=cF0> *drive, </span><span class=cF1>U8</span><span class=cF0> *buf, </span><span class=cF9>I64</span><span class=cF0> blk, </span><span class=cF9>I64</span><span class=cF0> count)
<a name="l88"></a>{</span><span class=cF2>//Write blk count from buf to Drive.</span><span class=cF0>
<a name="l89"></a> </span><span class=cF1>Bool</span><span class=cF0> res = </span><span class=cF3>TRUE</span><span class=cF0>, unlock;
<a name="l90"></a> </span><span class=cF9>CBlkDev</span><span class=cF0> *bd = drive-&gt;bd;
<a name="l91"></a>
<a name="l92"></a> </span><span class=cF1>if</span><span class=cF0> (count &lt;= </span><span class=cFE>0</span><span class=cF0>)
<a name="l93"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cF3>TRUE</span><span class=cF0>;
<a name="l94"></a> </span><span class=cF5>DriveCheck</span><span class=cF0>(drive);
<a name="l95"></a> </span><span class=cF1>try</span><span class=cF0>
<a name="l96"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l97"></a> unlock = </span><span class=cF5>DriveLock</span><span class=cF0>(drive);
<a name="l98"></a> </span><span class=cFD>BlkDevInit</span><span class=cF0>(bd);
<a name="l99"></a> </span><span class=cF1>if</span><span class=cF0> (bd-&gt;flags &amp; </span><span class=cF3>BDF_READ_ONLY</span><span class=cF0> &amp;&amp; !</span><span class=cF7>(</span><span class=cF0>bd-&gt;flags &amp; </span><span class=cF3>BDF_READ_ONLY_OVERRIDE</span><span class=cF7>)</span><span class=cF0>)
<a name="l100"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'BlkDev'</span><span class=cF0>);
<a name="l101"></a> </span><span class=cF1>if</span><span class=cF0> (drive-&gt;drv_offset &amp;&amp; blk&lt;drive-&gt;drv_offset || blk + count&gt;drive-&gt;drv_offset + drive-&gt;size)
<a name="l102"></a> </span><span class=cF5>throw</span><span class=cF0>(</span><span class=cF6>'Drive'</span><span class=cF0>);
<a name="l103"></a> </span><span class=cF1>if</span><span class=cF0> (count &gt; </span><span class=cFE>0</span><span class=cF0>)
<a name="l104"></a> {
<a name="l105"></a> </span><span class=cF1>switch</span><span class=cF0> (bd-&gt;type)
<a name="l106"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l107"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_RAM</span><span class=cF0>:
<a name="l108"></a> </span><span class=cF5>MemCopy</span><span class=cF0>(bd-&gt;RAM_disk + blk &lt;&lt; </span><span class=cF3>BLK_SIZE_BITS</span><span class=cF0>, buf, count &lt;&lt; </span><span class=cF3>BLK_SIZE_BITS</span><span class=cF0>);
<a name="l109"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l110"></a>
<a name="l111"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ISO_FILE_READ</span><span class=cF0>:
<a name="l112"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ISO_FILE_WRITE</span><span class=cF0>:
<a name="l113"></a> </span><span class=cF5>FBlkWrite</span><span class=cF0>(bd-&gt;file_disk, buf, blk, count);
<a name="l114"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l115"></a>
<a name="l116"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ATA</span><span class=cF0>:
<a name="l117"></a> </span><span class=cF1>case</span><span class=cF0> </span><span class=cF3>BDT_ATAPI</span><span class=cF0>:
<a name="l118"></a> res = </span><span class=cFD>AHCIAtaWBlks</span><span class=cF0>(drive, buf, blk, count);
<a name="l119"></a> </span><span class=cF1>break</span><span class=cF0>;
<a name="l120"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l121"></a> bd-&gt;last_time = </span><span class=cF5>tS</span><span class=cF0>;
<a name="l122"></a> </span><span class=cF1>if</span><span class=cF0> (bd-&gt;flags &amp; </span><span class=cF3>BDF_READ_CACHE</span><span class=cF0>)
<a name="l123"></a> </span><span class=cFD>DiskCacheAdd</span><span class=cF0>(drive, buf, blk, count);
<a name="l124"></a> }
<a name="l125"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l126"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l127"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l128"></a> </span><span class=cF1>catch</span><span class=cF0>
<a name="l129"></a> </span><span class=cF1>if</span><span class=cF0> (unlock)
<a name="l130"></a> </span><span class=cF5>DriveUnlock</span><span class=cF0>(drive);
<a name="l131"></a>
<a name="l132"></a> </span><span class=cF1>return</span><span class=cF0> res;
<a name="l133"></a>}
</span></pre></body>
</html>
Reference in a new issue View git blame Copy permalink