71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
#pragma once
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#include <stdint.h>
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#define PCI_VENDOR_ID 0x00 // 2
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#define PCI_DEVICE_ID 0x02 // 2
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#define PCI_COMMAND 0x04 // 2
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#define PCI_STATUS 0x06 // 2
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#define PCI_REVISION_ID 0x08 // 1
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#define PCI_PROG_IF 0x09 // 1
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#define PCI_SUBCLASS 0x0a // 1
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#define PCI_CLASS 0x0b // 1
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#define PCI_CACHE_LINE_SIZE 0x0c // 1
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#define PCI_LATENCY_TIMER 0x0d // 1
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#define PCI_HEADER_TYPE 0x0e // 1
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#define PCI_BIST 0x0f // 1
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#define PCI_BAR0 0x10 // 4
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#define PCI_BAR1 0x14 // 4
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#define PCI_BAR2 0x18 // 4
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#define PCI_BAR3 0x1C // 4
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#define PCI_BAR4 0x20 // 4
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#define PCI_BAR5 0x24 // 4
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#define PCI_INTERRUPT_LINE 0x3C // 1
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#define PCI_SECONDARY_BUS 0x19 // 1
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#define PCI_HEADER_TYPE_DEVICE 0
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#define PCI_HEADER_TYPE_BRIDGE 1
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#define PCI_HEADER_TYPE_CARDBUS 2
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#define PCI_TYPE_BRIDGE 0x0604
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#define PCI_TYPE_SATA 0x0106
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#define PCI_ADDRESS_PORT 0xCF8
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#define PCI_VALUE_PORT 0xCFC
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#define PCI_NONE 0xFFFF
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typedef void (*pci_func_t)(uint32_t device, uint16_t vendor_id, uint16_t device_id, void * extra);
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static inline int pci_extract_bus(uint32_t device) {
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return (uint8_t)((device >> 16));
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}
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static inline int pci_extract_slot(uint32_t device) {
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return (uint8_t)((device >> 8));
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}
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static inline int pci_extract_func(uint32_t device) {
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return (uint8_t)(device);
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}
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static inline uint32_t pci_get_addr(uint32_t device, int field) {
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return 0x80000000 | (pci_extract_bus(device) << 16) | (pci_extract_slot(device) << 11) | (pci_extract_func(device) << 8) | ((field) & 0xFC);
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}
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static inline uint32_t pci_box_device(int bus, int slot, int func) {
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return (uint32_t)((bus << 16) | (slot << 8) | func);
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}
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uint32_t pci_read_field(uint32_t device, int field, int size);
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void pci_write_field(uint32_t device, int field, int size, uint32_t value);
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uint16_t pci_find_type(uint32_t dev);
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void pci_scan_func(pci_func_t f, int type, int bus, int slot, int func, void * extra);
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void pci_scan_slot(pci_func_t f, int type, int bus, int slot, void * extra);
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void pci_scan_bus(pci_func_t f, int type, int bus, void * extra);
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void pci_scan(pci_func_t f, int type, void * extra);
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void pci_remap(void);
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int pci_get_interrupt(uint32_t device);
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