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/* -------------------------------------------
Copyright SoftwareLabs
------------------------------------------- */
#pragma once
#include <NewKit/Defines.hpp>
namespace NewOS::PCI
{
enum class PciConfigKind : UShort
{
ConfigAddress = 0xCF8,
ConfigData = 0xCFC,
Invalid = 0xFFF
};
class Device final
{
public:
Device() = default;
public:
explicit Device(UShort bus, UShort device, UShort function, UShort bar);
Device& operator=(const Device&) = default;
Device(const Device&) = default;
~Device();
public:
UInt Read(UInt bar, Size szData);
void Write(UInt bar, UIntPtr data, Size szData);
public:
operator bool();
public:
template <typename T>
UInt Read(UInt bar)
{
static_assert(sizeof(T) <= 4, "64-bit PCI addressing is unsupported");
return Read(bar, sizeof(T));
}
template <typename T>
void Write(UInt bar, UIntPtr data)
{
static_assert(sizeof(T) <= 4, "64-bit PCI addressing is unsupported");
Write(bar, data, sizeof(T));
}
public:
UShort DeviceId();
UShort VendorId();
UShort InterfaceId();
UChar Class();
UChar Subclass();
UChar ProgIf();
UChar HeaderType();
public:
void EnableMmio();
void BecomeBusMaster(); // for PCI-DMA, PC-DMA does not need that.
UShort Vendor();
private:
UShort fBus;
UShort fDevice;
UShort fFunction;
UShort fBar;
};
} // namespace NewOS::PCI
EXTERN_C void NewOSPCISetCfgTarget(NewOS::UInt bar);
EXTERN_C NewOS::UInt NewOSPCIReadRaw(NewOS::UInt bar);
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