christoph/lecture-operating-system-development
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reformat + static const ioports

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This commit is contained in:
Christoph Urlacher
2022-07-24 16:54:51 +02:00
parent e1eac41853
commit 0d109727ac
11 changed files with 84 additions and 67 deletions
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7
c_os/devices/PIT.cc
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@ -12,6 +12,9 @@
#include "kernel/Globals.h"
#include "kernel/IOport.h"
const IOport PIT::control(0x43);
const IOport PIT::data0(0x40);
/*****************************************************************************
* Methode: PIT::interval *
*---------------------------------------------------------------------------*
@ -25,12 +28,10 @@ void PIT::interval(int us) {
/* hier muss Code eingefuegt werden */
IOport control(0x43);
control.outb(0x36); // Zähler 0 Mode 3
unsigned int cntStart = (1193180.0 / 1000000.0) * us; // 1.19Mhz PIT
IOport data0(0x40);
data0.outb(cntStart & 0xFF); // Zaehler-0 laden (Lobyte)
data0.outb(cntStart >> 8); // Zaehler-0 laden (Hibyte)
}
@ -47,7 +48,7 @@ void PIT::plugin() {
/* hier muss Code eingefuegt werden */
intdis.assign(IntDispatcher::timer, *this);
pic.allow(PIC::timer);
PIC::allow(PIC::timer);
}
/*****************************************************************************