christoph/lecture-operating-system-development
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implement exercise 04 interrupts

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churl
2022-05-14 21:12:32 +02:00
parent deb0ebd8eb
commit 13df44fb6f
8 changed files with 208 additions and 120 deletions
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42
c_os/devices/Keyboard.cc
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@ -9,6 +9,7 @@
*****************************************************************************/
#include "devices/Keyboard.h"
#include "kernel/Globals.h"
/* Tabellen fuer ASCII-Codes (Klassenvariablen) intiialisieren */
@ -321,3 +322,44 @@ void Keyboard::set_led(char led, bool on) {
/* Hier muss Code eingefuegt werden. */
}
// Registriert die Tastatur ISR im IntDispatcher
// und erlaubt den keyboard interrupt
void Keyboard::plugin(IntDispatcher& intdis, PIC& pic) {
intdis.assign(IntDispatcher::keyboard, *this);
pic.allow(PIC::keyboard);
}
void scroll_mode(Key key);
void Keyboard::trigger() {
// TODO: Get data from PS/2 Mouse if necessary
Key key = this->key_hit();
// NOTE: My keyboard has no delete key...
if (key.ctrl_left() && key.alt_left() && (char)key == 'r') {
this->reboot();
}
scroll_mode(key);
// kout.show(0, 0, (char)key);
}
// TODO: Where to place this?
// Waits for keys to control the scrollback buffer display
void scroll_mode(Key key) {
kout.show(kout.COLUMNS - 1, 0, (char)(48 + kout.current_page));
switch ((char)key) {
case 'k':
kout.scroll_page_backward();
kout.show(kout.COLUMNS - 1, 0, (char)(48 + kout.current_page));
break;
case 'j':
kout.scroll_page_forward();
kout.show(kout.COLUMNS - 1, 0, (char)(48 + kout.current_page));
break;
}
}