#ifndef __PCI_H
#define __PCI_H

#include "system.h"

	typedef struct DeviceDescriptor
	{
		uint32_t PortBase;
		uint32_t Interrupt;
		uint16_t Bus;
		uint16_t Device;
		uint16_t Function;

		uint16_t VendorId;
		uint16_t DeviceId;

		uint8_t ClassId;
		uint8_t SubClassId;
		uint8_t InterfaceId;

		uint8_t Revision;
	};

	uint32_t Read(uint16_t busNumber, uint16_t deviceNumber, uint16_t functionNumber, uint32_t registerOffset);

	void Write(uint16_t busNumber, uint16_t deviceNumber, uint16_t functionNumber, uint32_t registerOffset, uint32_t value);

	bool DeviceHasFunctions(uint16_t bus, uint16_t device);

	void EnumPCISubsystem(void);

	struct DeviceDescriptor GetDeviceDescriptor(uint16_t busNumber, uint16_t deviceNumber, uint16_t functionNumber);

#endif