77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
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#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 vend_id;
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uint16_t dev_id;
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uint16_t command;
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uint16_t status;
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uint8_t rev_id;
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uint8_t prog_if;
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uint8_t subclass;
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uint8_t class_code;
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uint8_t cache_line_size;
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uint8_t lat_timer;
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uint8_t header_type;
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uint8_t bist;
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uint16_t bus;
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uint8_t device;
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uint8_t func;
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} __attribute__((packed)) pci_dev_common_info;
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typedef struct {
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pci_dev_common_info common;
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uint32_t bar0;
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uint32_t bar1;
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uint32_t bar2;
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uint32_t bar3;
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uint32_t bar4;
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uint32_t bar5;
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uint32_t cis_ptr;
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uint16_t sub_vend_id;
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uint16_t sub_id;
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uint32_t exp_rom_addr;
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uint16_t cap_ptr;
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uint16_t reserved1;
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uint32_t reserved2;
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uint8_t int_line;
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uint8_t int_pin;
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uint8_t min_grnt;
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uint8_t max_latency;
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} __attribute__((packed)) pci_dev_type0;
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typedef enum {
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PCI_CLASS_UNCLASSIFIED=0x0,
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PCI_CLASS_STORAGE=0x1,
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PCI_CLASS_NETWORK=0x2,
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PCI_CLASS_DISPLAY=0x3,
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PCI_CLASS_MULTIMEDIA=0x4,
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PCI_CLASS_MEMORY=0x5,
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PCI_CLASS_BRIDGE=0x6,
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PCI_CLASS_SIMPCOM=0x7,
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PCI_CLASS_BASEPERIPH=0x8,
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PCI_CLASS_INPDEV=0x9,
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PCI_CLASS_DOCK=0xa,
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PCI_CLASS_CPU=0xb,
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PCI_CLASS_SERBUS=0xc,
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PCI_CLASS_WIRELESS=0xd,
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PCI_CLASS_INTELLIGENT=0xe,
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PCI_CLASS_SATELLITE=0xf,
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PCI_CLASS_ENCRYPTION=0x10,
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PCI_CLASS_SIGPROCESS=0x11,
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} pci_class;
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extern pci_dev_common_info** pci_devs;
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extern uint32_t pci_num_devs;
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pci_dev_common_info* pci_get_dev_info(uint8_t bus,uint8_t device,uint8_t func);
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void pci_set_dev_info(pci_dev_common_info* inf);
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void pci_init();
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#endif
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