ladybird/Kernel/PCI.h
Robin Burchell 0dc9af5f7e Add clang-format file
Also run it across the whole tree to get everything using the One True Style.
We don't yet run this in an automated fashion as it's a little slow, but
there is a snippet to do so in makeall.sh.
2019-05-28 17:31:20 +02:00

58 lines
1.3 KiB
C++

#pragma once
#include <AK/Function.h>
#include <AK/Types.h>
namespace PCI {
struct ID {
word vendor_id { 0 };
word device_id { 0 };
bool is_null() const { return !vendor_id && !device_id; }
bool operator==(const ID& other) const
{
return vendor_id == other.vendor_id && device_id == other.device_id;
}
};
struct Address {
Address() {}
Address(byte bus, byte slot, byte function)
: m_bus(bus)
, m_slot(slot)
, m_function(function)
{
}
bool is_null() const { return !m_bus && !m_slot && !m_function; }
operator bool() const { return !is_null(); }
byte bus() const { return m_bus; }
byte slot() const { return m_slot; }
byte function() const { return m_function; }
dword io_address_for_field(byte field) const
{
return 0x80000000u | (m_bus << 16u) | (m_slot << 11u) | (m_function << 8u) | (field & 0xfc);
}
private:
byte m_bus { 0 };
byte m_slot { 0 };
byte m_function { 0 };
};
void enumerate_all(Function<void(Address, ID)>);
byte get_interrupt_line(Address);
dword get_BAR0(Address);
dword get_BAR1(Address);
dword get_BAR2(Address);
dword get_BAR3(Address);
dword get_BAR4(Address);
dword get_BAR5(Address);
void enable_bus_mastering(Address);
}