src/include/device/path.h

   1 #ifndef DEVICE_PATH_H
   2 #define DEVICE_PATH_H
   3
   4 enum device_path_type {
   5         DEVICE_PATH_NONE = 0,
   6         DEVICE_PATH_ROOT,
   7         DEVICE_PATH_PCI,
   8         DEVICE_PATH_PNP,
   9         DEVICE_PATH_I2C,
  10         DEVICE_PATH_APIC,
  11         DEVICE_PATH_PCI_DOMAIN,
  12         DEVICE_PATH_APIC_CLUSTER,
  13         DEVICE_PATH_CPU,
  14         DEVICE_PATH_CPU_BUS,
  15 };
  16
  17 struct pci_domain_path
  18 {
  19         unsigned domain;
  20 };
  21
  22 struct pci_path
  23 {
  24         unsigned devfn;
  25 };
  26
  27 struct pnp_path
  28 {
  29         unsigned port;
  30         unsigned device;
  31 };
  32
  33 struct i2c_path
  34 {
  35         unsigned device;
  36 };
  37
  38 struct apic_path
  39 {
  40         unsigned apic_id;
  41 };
  42
  43 struct apic_cluster_path
  44 {
  45         unsigned cluster;
  46 };
  47
  48 struct cpu_path
  49 {
  50         unsigned id;
  51 };
  52
  53 struct cpu_bus_path
  54 {
  55         unsigned id;
  56 };
  57
  58
  59 struct device_path {
  60         enum device_path_type type;
  61         union {
  62                 struct pci_path          pci;
  63                 struct pnp_path          pnp;
  64                 struct i2c_path          i2c;
  65                 struct apic_path         apic;
  66                 struct pci_domain_path   pci_domain;
  67                 struct apic_cluster_path apic_cluster;
  68                 struct cpu_path          cpu;
  69                 struct cpu_bus_path      cpu_bus;
  70         } u;
  71 };
  72
  73
  74 #define DEVICE_PATH_MAX 30
  75 #define BUS_PATH_MAX (DEVICE_PATH_MAX+10)
  76
  77 extern int path_eq(struct device_path *path1, struct device_path *path2);
  78
  79 #endif /* DEVICE_PATH_H */