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ZealOS/docs/Demo/Lectures/PCIInterrupts.CC.html
TomAwezome 923b700822 Change DVDImageWrite to use single buffer. 
Add CAtapiWriteCmd for AHCIAtapiBlksWrite.
Remove AHCIAtapiSeek and AHCIAtapiFormat.
2021-08-15 02:23:46 -04:00

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<pre style="font-family:monospace;font-size:12pt">
<a name="l1"></a><span class=cF2>//See </span><span class=cF4><u>PCI</u></span><span class=cF2>.</span><span class=cF0>
<a name="l2"></a>
<a name="l3"></a>#</span><span class=cF1>if</span><span class=cF0> </span><span class=cFB>mp_count</span><span class=cF0> &gt; </span><span class=cFE>1</span><span class=cF0>
<a name="l4"></a>#</span><span class=cF1>define</span><span class=cF0> DEST_CPU </span><span class=cFE>1</span><span class=cF0>
<a name="l5"></a>#</span><span class=cF1>else</span><span class=cF0>
<a name="l6"></a>#</span><span class=cF1>define</span><span class=cF0> DEST_CPU </span><span class=cFE>0</span><span class=cF0>
<a name="l7"></a>#</span><span class=cF1>endif</span><span class=cF0>
<a name="l8"></a>
<a name="l9"></a>#</span><span class=cF1>assert</span><span class=cF0> </span><span class=cF3>I_USER</span><span class=cF0> == </span><span class=cFE>0x40</span><span class=cF0>
<a name="l10"></a>
<a name="l11"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy40()
<a name="l12"></a>{
<a name="l13"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress1</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l14"></a> *(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias + </span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *) = </span><span class=cFE>0</span><span class=cF0>;
<a name="l15"></a>}
<a name="l16"></a>
<a name="l17"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy41()
<a name="l18"></a>{
<a name="l19"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress2</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l20"></a> *(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias + </span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *) = </span><span class=cFE>0</span><span class=cF0>;
<a name="l21"></a>}
<a name="l22"></a>
<a name="l23"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy42()
<a name="l24"></a>{
<a name="l25"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress3</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l26"></a> *(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias + </span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *) = </span><span class=cFE>0</span><span class=cF0>;
<a name="l27"></a>}
<a name="l28"></a>
<a name="l29"></a></span><span class=cF1>interrupt</span><span class=cF0> </span><span class=cF1>U0</span><span class=cF0> IntMy43()
<a name="l30"></a>{
<a name="l31"></a> </span><span class=cF1>lock</span><span class=cF0> </span><span class=cF7>{</span><span class=cFB>progress4</span><span class=cF0>++;</span><span class=cF7>}</span><span class=cF0>
<a name="l32"></a> *(</span><span class=cFB>dev</span><span class=cF0>.uncached_alias + </span><span class=cF3>LAPIC_EOI</span><span class=cF0>)(</span><span class=cF9>U32</span><span class=cF0> *) = </span><span class=cFE>0</span><span class=cF0>;
<a name="l33"></a>}
<a name="l34"></a>
<a name="l35"></a></span><span class=cF9>I64</span><span class=cF0> vect[</span><span class=cFE>4</span><span class=cF0>] = {&amp;IntMy40, &amp;IntMy41, &amp;IntMy42, &amp;IntMy43};
<a name="l36"></a>
<a name="l37"></a></span><span class=cF1>U0</span><span class=cF0> Main()
<a name="l38"></a>{
<a name="l39"></a> </span><span class=cF9>I64</span><span class=cF0> i;
<a name="l40"></a> </span><span class=cF1>U8</span><span class=cF0> *da = </span><span class=cFB>dev</span><span class=cF0>.uncached_alias + </span><span class=cF3>IOAPIC_REG</span><span class=cF0>;
<a name="l41"></a> </span><span class=cF9>U32</span><span class=cF0> *_d = </span><span class=cFB>dev</span><span class=cF0>.uncached_alias + </span><span class=cF3>IOAPIC_DATA</span><span class=cF0>;
<a name="l42"></a>
<a name="l43"></a> </span><span class=cF5>ProgressBarsReset</span><span class=cF0>;
<a name="l44"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cF3>I_USER</span><span class=cF0>; i &lt; </span><span class=cF3>I_USER</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0>; i++)
<a name="l45"></a> </span><span class=cF5>IntEntrySet</span><span class=cF0>(i, vect[i&amp;</span><span class=cFE>3</span><span class=cF0>], </span><span class=cF3>IDTET_IRQ</span><span class=cF0>);
<a name="l46"></a>
<a name="l47"></a> </span><span class=cF2>//There are like 4*6 vects. Bus zero</span><span class=cF0>
<a name="l48"></a> </span><span class=cF2>//has the first four vects.</span><span class=cF0>
<a name="l49"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cF3>IOREDTAB</span><span class=cF0>; i &lt; </span><span class=cF3>IOREDTAB</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0> * </span><span class=cFE>2</span><span class=cF0>; i += </span><span class=cFE>2</span><span class=cF0>)
<a name="l50"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l51"></a> *da = i + </span><span class=cFE>1</span><span class=cF0>;
<a name="l52"></a> *_d = </span><span class=cFB>dev</span><span class=cF0>.mp_apic_ids[DEST_CPU] &lt;&lt; </span><span class=cFE>24</span><span class=cF0>;
<a name="l53"></a> *da = i;
<a name="l54"></a> *_d = </span><span class=cFE>0x4000</span><span class=cF0> + </span><span class=cFE>0x40</span><span class=cF0> + (i - </span><span class=cF3>IOREDTAB</span><span class=cF0>) / </span><span class=cFE>2</span><span class=cF0>;
<a name="l55"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l56"></a>
<a name="l57"></a> </span><span class=cF5>Sleep</span><span class=cF0>(</span><span class=cFE>1000</span><span class=cF0>);
<a name="l58"></a> </span><span class=cF6>&quot;The keyboard and timer seem to be active.\n&quot;</span><span class=cF0>
<a name="l59"></a> </span><span class=cF6>&quot;IntA:%d IntB:%d IntC:%d IntD:%d\n\n&quot;</span><span class=cF0>
<a name="l60"></a> </span><span class=cF6>&quot;IntB is Terry's keyboard and regs a single KEY-UP.\n&quot;</span><span class=cF0>
<a name="l61"></a> </span><span class=cF6>&quot;Rerun and press a few keys.\n&quot;</span><span class=cF0>, </span><span class=cFB>progress1</span><span class=cF0>, </span><span class=cFB>progress2</span><span class=cF0>, </span><span class=cFB>progress3</span><span class=cF0>, </span><span class=cFB>progress4</span><span class=cF0>;
<a name="l62"></a>
<a name="l63"></a> </span><span class=cF2>//Disable vects</span><span class=cF0>
<a name="l64"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cF3>IOREDTAB</span><span class=cF0>; i &lt; </span><span class=cF3>IOREDTAB</span><span class=cF0> + </span><span class=cFE>4</span><span class=cF0> * </span><span class=cFE>2</span><span class=cF0>; i += </span><span class=cFE>2</span><span class=cF0>)
<a name="l65"></a> </span><span class=cF7>{</span><span class=cF0>
<a name="l66"></a> *da = i + </span><span class=cFE>1</span><span class=cF0>;
<a name="l67"></a> *_d = </span><span class=cFB>dev</span><span class=cF0>.mp_apic_ids[DEST_CPU] &lt;&lt; </span><span class=cFE>24</span><span class=cF0>;
<a name="l68"></a> *da = i;
<a name="l69"></a> *_d = </span><span class=cFE>0x14000</span><span class=cF0> + </span><span class=cFE>0x40</span><span class=cF0> + (i - </span><span class=cF3>IOREDTAB</span><span class=cF0>) / </span><span class=cFE>2</span><span class=cF0>;
<a name="l70"></a> </span><span class=cF7>}</span><span class=cF0>
<a name="l71"></a> </span><span class=cF5>ProgressBarsReset</span><span class=cF0>;
<a name="l72"></a>}
<a name="l73"></a>
<a name="l74"></a>Main;
</span></pre></body>
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