#include "types.h" // u32
-typedef struct PCIDevice {
- u8 bus;
- u8 devfn;
-} PCIDevice;
-
-static inline PCIDevice
-pci_bd(u8 bus, u8 devfn)
-{
- struct PCIDevice d = {bus, devfn};
- return d;
+static inline u8 pci_bdf_to_bus(u16 bdf) {
+ return bdf >> 8;
+}
+static inline u8 pci_bdf_to_devfn(u16 bdf) {
+ return bdf & 0xff;
+}
+static inline u8 pci_bdf_to_dev(u16 bdf) {
+ return (bdf >> 3) & 0x1f;
+}
+static inline u8 pci_bdf_to_fn(u16 bdf) {
+ return bdf & 0x07;
}
+static inline u16 pci_to_bdf(int bus, int dev, int fn) {
+ return (bus<<8) | (dev<<3) | fn;
+}
+
+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);
+u32 pci_config_readl(u16 bdf, u32 addr);
+u16 pci_config_readw(u16 bdf, u32 addr);
+u8 pci_config_readb(u16 bdf, u32 addr);
+
+int pci_find_device(u16 vendid, u16 devid);
+int pci_find_class(u16 classid);
+
+int pci_next(int bdf, int *pmax);
+#define foreachpci(BDF, MAX) \
+ for (MAX=0x0100, BDF=pci_next(0, &MAX) \
+ ; BDF >= 0 \
+ ; BDF=pci_next(BDF+1, &MAX))
+
+// pirtable.c
+void create_pirtable();
+
+
+/****************************************************************
+ * PIR table
+ ****************************************************************/
+
+extern u16 PirOffset;
+
+struct link_info {
+ u8 link;
+ u16 bitmap;
+} PACKED;
+
+struct pir_slot {
+ u8 bus;
+ u8 dev;
+ struct link_info links[4];
+ u8 slot_nr;
+ u8 reserved;
+} PACKED;
+
+struct pir_header {
+ u32 signature;
+ u16 version;
+ u16 size;
+ u8 router_bus;
+ u8 router_devfunc;
+ u16 exclusive_irqs;
+ u32 compatible_devid;
+ u32 miniport_data;
+ u8 reserved[11];
+ u8 checksum;
+ struct pir_slot slots[0];
+} PACKED;
-void pci_config_writel(PCIDevice d, u32 addr, u32 val);
-void pci_config_writew(PCIDevice d, u32 addr, u16 val);
-void pci_config_writeb(PCIDevice d, u32 addr, u8 val);
-u32 pci_config_readl(PCIDevice d, u32 addr);
-u16 pci_config_readw(PCIDevice d, u32 addr);
-u8 pci_config_readb(PCIDevice d, u32 addr);
+#define PIR_SIGNATURE 0x52495024 // $PIR
-int pci_find_device(u16 vendid, u16 devid, int index, PCIDevice *dev);
-int pci_find_class(u32 classid, int index, PCIDevice *dev);
#endif