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#ifndef PCI_H
#define PCI_H
#include <stdbool.h>
#include "port.h"
typedef struct {
uint16_t vendor_id;
uint16_t device_id;
uint8_t class_id;
uint8_t subclass_id;
uint8_t interface_id;
uint8_t revision_id;
} pci_device_descriptor_t;
typedef struct {
port32_t command_port;
port32_t data_port;
} pci_controller_t;
typedef enum {
BASE_ADDRESS_REGISTER_TYPE_IO,
BASE_ADDRESS_REGISTER_TYPE_MEMORY_MAPPED
} pci_base_address_register_type_t;
typedef struct {
pci_base_address_register_type_t type;
bool prefechable;
uint8_t *addr;
uint32_t *size;
} pci_base_address_register_t;
void pci_controller_init( pci_controller_t *controller );
uint16_t pci_controller_read( pci_controller_t *controller, uint16_t bus, uint16_t device, uint16_t function, uint32_t offset );
void pci_controller_write( pci_controller_t *controller, uint16_t bus, uint16_t device, uint16_t function, uint32_t offset, uint32_t data );
void pci_controller_scan( pci_controller_t *controller );
void pci_device_descriptor_init( pci_device_descriptor_t *descriptor, pci_controller_t *controller, uint16_t bus, uint16_t device, uint16_t function );
void pci_base_address_register_init( pci_base_address_register_t *base_address_register, pci_controller_t *controller, uint16_t bus, uint16_t device, uint16_t function, uint16_t bar );
#endif // PCI_H
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