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#include "PS2Keyboard.class.h"
#include <DeviceManager/Dev.ns.h>
#include <DeviceManager/Kbd.ns.h>
using namespace Sys;
PS2Keyboard::PS2Keyboard() {
Dev::requestIRQ(this, 1);
//Read all waiting characters, so that keyboard buffer is empty
u8int temp = inb(0x60), temp2 = 0;
while (temp != temp2) {
temp2 = temp;
temp = inb(0x60);
}
m_escaped = false;
}
String PS2Keyboard::getClass() {
return "keyboard.ps2";
}
String PS2Keyboard::getName() {
return "Standard PS2 keyboard";
}
void PS2Keyboard::handleIRQ(registers_t regs, int irq) {
if (irq == 1) {
u8int scancode = inb(0x60);
if (scancode == 0xE0) {
m_escaped = true;
} else {
if (scancode & 0x80) {
if (m_escaped) {
Kbd::keyRelease(scancode);
} else {
Kbd::keyRelease(scancode & 0x7F);
}
} else {
if (m_escaped) {
Kbd::keyPress(scancode | 0x80);
} else {
Kbd::keyPress(scancode);
}
}
}
}
}
void PS2Keyboard::updateLeds(u32int kbdstatus) {
u8int temp = 0;
if (kbdstatus & STATUS_SCRL)
temp |= 1;
if (kbdstatus & STATUS_NUM)
temp |= 2;
if (kbdstatus & STATUS_CAPS)
temp |= 4;
outb(0x60, temp);
}
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