mirror of
https://github.com/BoredDevNL/BoredOS.git
synced 2026-05-15 18:58:40 +00:00
89bdb860dd
New feature(s): - Network stack - Piping commands into a udpsend message Bug fix(es): -N/A
35 lines
1.3 KiB
C
35 lines
1.3 KiB
C
#ifndef PCI_H
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#define PCI_H
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#include <stdint.h>
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#define PCI_CONFIG_ADDRESS 0xCF8
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#define PCI_CONFIG_DATA 0xCFC
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typedef struct {
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uint16_t vendor_id;
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uint16_t device_id;
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uint8_t bus;
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uint8_t device;
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uint8_t function;
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uint8_t class_code;
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uint8_t subclass;
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uint8_t prog_if;
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} pci_device_t;
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#define PCI_CLASS_NETWORK_CONTROLLER 0x02
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#define PCI_CLASS_ETHERNET_CONTROLLER 0x00
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uint32_t pci_read_config(uint8_t bus, uint8_t device, uint8_t function, uint8_t offset);
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void pci_write_config(uint8_t bus, uint8_t device, uint8_t function, uint8_t offset, uint32_t value);
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int pci_device_exists(uint8_t bus, uint8_t device, uint8_t function);
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uint16_t pci_get_vendor_id(uint8_t bus, uint8_t device, uint8_t function);
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uint16_t pci_get_device_id(uint8_t bus, uint8_t device, uint8_t function);
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uint8_t pci_get_class_code(uint8_t bus, uint8_t device, uint8_t function);
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uint8_t pci_get_subclass(uint8_t bus, uint8_t device, uint8_t function);
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uint8_t pci_get_prog_if(uint8_t bus, uint8_t device, uint8_t function);
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int pci_enumerate_devices(pci_device_t* devices, int max_devices);
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int pci_find_device(uint16_t vendor_id, uint16_t device_id, pci_device_t* device);
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int pci_find_device_by_class(uint8_t class_code, uint8_t subclass, pci_device_t* device);
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#endif
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