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#pragma once
#include <AK/Types.h>
namespace IO {
inline u8 in8(u16 port)
{
u8 value;
asm volatile("inb %1, %0"
: "=a"(value)
: "Nd"(port));
return value;
}
inline u16 in16(u16 port)
{
u16 value;
asm volatile("inw %1, %0"
: "=a"(value)
: "Nd"(port));
return value;
}
inline u32 in32(u16 port)
{
u32 value;
asm volatile("inl %1, %0"
: "=a"(value)
: "Nd"(port));
return value;
}
inline void repeated_in16(u16 port, u8* buffer, int buffer_size)
{
asm volatile("rep insw"
: "+D"(buffer), "+c"(buffer_size)
: "d"(port)
: "memory");
}
inline void out8(u16 port, u8 value)
{
asm volatile("outb %0, %1" ::"a"(value), "Nd"(port));
}
inline void out16(u16 port, u16 value)
{
asm volatile("outw %0, %1" ::"a"(value), "Nd"(port));
}
inline void out32(u16 port, u32 value)
{
asm volatile("outl %0, %1" ::"a"(value), "Nd"(port));
}
inline void repeated_out16(u16 port, const u8* data, int data_size)
{
asm volatile("rep outsw"
: "+S"(data), "+c"(data_size)
: "d"(port));
}
inline void delay()
{
// ~3 microsecs
for (auto i = 0; i < 32; i++) {
IO::in8(0x80);
}
}
}
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