4 #include "types.h" // u32
6 static inline u8 pci_bdf_to_bus(u16 bdf) {
9 static inline u8 pci_bdf_to_devfn(u16 bdf) {
12 static inline u16 pci_bdf_to_busdev(u16 bdf) {
15 static inline u8 pci_bdf_to_dev(u16 bdf) {
16 return (bdf >> 3) & 0x1f;
18 static inline u8 pci_bdf_to_fn(u16 bdf) {
21 static inline u16 pci_to_bdf(int bus, int dev, int fn) {
22 return (bus<<8) | (dev<<3) | fn;
25 static inline u32 pci_vd(u16 vendor, u16 device) {
26 return (device << 16) | vendor;
28 static inline u16 pci_vd_to_ven(u32 vd) {
31 static inline u16 pci_vd_to_dev(u32 vd) {
35 void pci_config_writel(u16 bdf, u32 addr, u32 val);
36 void pci_config_writew(u16 bdf, u32 addr, u16 val);
37 void pci_config_writeb(u16 bdf, u32 addr, u8 val);
38 u32 pci_config_readl(u16 bdf, u32 addr);
39 u16 pci_config_readw(u16 bdf, u32 addr);
40 u8 pci_config_readb(u16 bdf, u32 addr);
41 void pci_config_maskw(u16 bdf, u32 addr, u16 off, u16 on);
43 int pci_find_vga(void);
44 int pci_find_device(u16 vendid, u16 devid);
45 int pci_find_class(u16 classid);
47 int pci_next(int bdf, int *pmax);
48 #define foreachpci(BDF, MAX) \
49 for (MAX=0x0100, BDF=pci_next(0, &MAX) \
51 ; BDF=pci_next(BDF+1, &MAX))
54 void create_pirtable(void);
57 /****************************************************************
59 ****************************************************************/
71 struct link_info links[4];
87 struct pir_slot slots[0];
90 #define PIR_SIGNATURE 0x52495024 // $PIR