#ifndef PORTIO_H
#define PORTIO_H

#include "hos_types.h"

#define outportb(port, val) \
    __asm__ __volatile__ ("outb %%al, %%dx" : : "a" (val), "d" (port));

#define outportw(port, val) \
    __asm__ __volatile__ ("outw %%ax, %%dx" : : "a" (val), "d" (port));

#define outportd(port, val) \
    __asm__ __volatile__ ("outl %%eax, %%dx" : : "a" (val), "d" (port));

static inline u8_t inportb(u16_t port)
{
    u8_t val;
    __asm__ __volatile__ ("inb %%dx, %%al" : "=a" (val) : "d" (port));
    return val;
}

static inline u16_t inportw(u16_t port)
{
    u16_t val;
    __asm__ __volatile__ ("inw %%dx, %%al" : "=a" (val) : "d" (port));
    return val;
}

static inline u32_t inportd(u16_t port)
{
    u32_t val;
    __asm__ __volatile__ ("inl %%dx, %%al" : "=a" (val) : "d" (port));
    return val;
}

#endif