#include "types.h" // u32
+#define PCI_ROM_SLOT 6
+#define PCI_NUM_REGIONS 7
+
static inline u8 pci_bdf_to_bus(u16 bdf) {
return bdf >> 8;
}
return (bus << 8) | devfn;
}
-static inline u32 pci_vd(u16 vendor, u16 device) {
- return (device << 16) | vendor;
-}
-static inline u16 pci_vd_to_ven(u32 vd) {
- return vd & 0xffff;
-}
-static inline u16 pci_vd_to_dev(u32 vd) {
- return vd >> 16;
-}
-
void pci_config_writel(u16 bdf, u32 addr, u32 val);
void pci_config_writew(u16 bdf, u32 addr, u16 val);
void pci_config_writeb(u16 bdf, u32 addr, u8 val);
u8 pci_config_readb(u16 bdf, u32 addr);
void pci_config_maskw(u16 bdf, u32 addr, u16 off, u16 on);
-int pci_find_vga(void);
-int pci_find_device(u16 vendid, u16 devid);
-int pci_find_class(u16 classid);
-
-#define PP_ROOT (1<<17)
-#define PP_PCIBRIDGE (1<<18)
-extern int *PCIpaths;
-void pci_path_setup(void);
+struct pci_device *pci_find_device(u16 vendid, u16 devid);
+struct pci_device *pci_find_class(u16 classid);
+
+struct pci_device {
+ u16 bdf;
+ u8 rootbus;
+ struct pci_device *next;
+ struct pci_device *parent;
+
+ // Configuration space device information
+ u16 vendor, device;
+ u16 class;
+ u8 prog_if, revision;
+ u8 header_type;
+ u8 secondary_bus;
+ struct {
+ u32 addr;
+ u32 size;
+ int is64;
+ } bars[PCI_NUM_REGIONS];
+
+ // Local information on device.
+ int have_driver;
+};
+extern struct pci_device *PCIDevices;
+extern int MaxPCIBus;
+int pci_probe_host(void);
+void pci_probe_devices(void);
+static inline u32 pci_classprog(struct pci_device *pci) {
+ return (pci->class << 8) | pci->prog_if;
+}
-int pci_next(int bdf, int *pmax);
-#define foreachbdf(BDF, MAX) \
- for (MAX=0x0100, BDF=pci_next(0, &MAX) \
- ; BDF >= 0 \
- ; BDF=pci_next(BDF+1, &MAX))
+#define foreachpci(PCI) \
+ for (PCI=PCIDevices; PCI; PCI=PCI->next)
-#define foreachbdf_in_bus(BDF, MAX, BUS) \
- for (MAX = pci_bus_devfn_to_bdf(BUS, 0) + 0x0100, \
- BDF = pci_next(pci_bus_devfn_to_bdf(BUS, 0), &MAX) \
- ; BDF >= 0 && BDF < pci_bus_devfn_to_bdf(BUS, 0) + 0x0100 \
- ; MAX = pci_bus_devfn_to_bdf(BUS, 0) + 0x0100, \
- BDF = pci_next(BDF + 1, &MAX))
+int pci_next(int bdf, int bus);
+#define foreachbdf(BDF, BUS) \
+ for (BDF=pci_next(pci_bus_devfn_to_bdf((BUS), 0)-1, (BUS)) \
+ ; BDF >= 0 \
+ ; BDF=pci_next(BDF, (BUS)))
#define PCI_ANY_ID (~0)
struct pci_device_id {
u32 devid;
u32 class;
u32 class_mask;
- void (*func)(u16 bdf, void *arg);
+ void (*func)(struct pci_device *pci, void *arg);
};
#define PCI_DEVICE(vendor_id, device_id, init_func) \
.vendid = 0, \
}
-int pci_init_device(const struct pci_device_id *table, u16 bdf, void *arg);
-int pci_find_init_device(const struct pci_device_id *ids, void *arg);
+int pci_init_device(const struct pci_device_id *ids
+ , struct pci_device *pci, void *arg);
+struct pci_device *pci_find_init_device(const struct pci_device_id *ids
+ , void *arg);
void pci_reboot(void);
// helper functions to access pci mmio bars from real mode