Luna/kernel/src/interrupts/IRQ.cpp

#define MODULE "irq"

#include "interrupts/IRQ.h"
#include "fs/devices/Keyboard.h"
#include "io/IO.h"
#include "io/PIC.h"
#include "log/Log.h"
#include "misc/Scancodes.h"
#include "rand/Init.h"
#include "std/stdio.h"
#include "thread/PIT.h"
#include "thread/Scheduler.h"

void IRQ::interrupt_handler(Context* context)
{
    switch (context->irq_number)
    {
    case 0:
        PIT::tick();
        Scheduler::task_tick(context);
        break;
    case 1: {
        unsigned char scancode = IO::inb(0x60);
        bool ignore = false;
        char key = translate_scancode(scancode, &ignore);
        if (ignore) break;
        KeyboardDevice::append(key);
        break;
    }
    default: kwarnln("Unhandled IRQ: %ld", context->irq_number); break;
    }
    Mersenne::reseed();
    PIC::send_eoi((unsigned char)(context->irq_number & 0xFF));
    return;
}