#include <cstdint>

#include "intc.h"
#include "interrupts.h"
#include "pol0.h"
#include "timer.h"

namespace {

struct Gpio {
    volatile uint32_t data;
};

Gpio* leds = reinterpret_cast<Gpio*>(GPIO0_BASE);
Timer* timer;

}

void Timer0Isr() { 
    static int counter = 0;
    leds->data = counter++;

    timer->Pet();
    timer->ClearInterrupt();
}

void SetupTimer() {
    timer = Timer::Instance(TIMER0_BASE);
    timer->SetupAsWdt(100'000'000);
    timer->EnableT1();

    SetIsr(TIMER0_IRQN, Timer0Isr);
    SetIrqEnabled(TIMER0_IRQN, true);
    EnableInterrupts();
}

int main() {
    leds->data = 0xa0;

    SetupTimer();
    SetExternalInterruptHandler(InterruptHandler);
    EnableExternalInterrupts();

    leds->data = 0xa1;

    BiosWozmon();
}