base.h 3.0 KB

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  1. /**
  2. * struct bus_type_private - structure to hold the private to the driver core portions of the bus_type structure.
  3. *
  4. * @subsys - the struct kset that defines this bus. This is the main kobject
  5. * @drivers_kset - the list of drivers associated with this bus
  6. * @devices_kset - the list of devices associated with this bus
  7. * @klist_devices - the klist to iterate over the @devices_kset
  8. * @klist_drivers - the klist to iterate over the @drivers_kset
  9. * @bus_notifier - the bus notifier list for anything that cares about things
  10. * on this bus.
  11. * @bus - pointer back to the struct bus_type that this structure is associated
  12. * with.
  13. *
  14. * This structure is the one that is the actual kobject allowing struct
  15. * bus_type to be statically allocated safely. Nothing outside of the driver
  16. * core should ever touch these fields.
  17. */
  18. struct bus_type_private {
  19. struct kset subsys;
  20. struct kset *drivers_kset;
  21. struct kset *devices_kset;
  22. struct klist klist_devices;
  23. struct klist klist_drivers;
  24. struct blocking_notifier_head bus_notifier;
  25. unsigned int drivers_autoprobe:1;
  26. struct bus_type *bus;
  27. };
  28. struct driver_private {
  29. struct kobject kobj;
  30. struct klist klist_devices;
  31. struct klist_node knode_bus;
  32. struct module_kobject *mkobj;
  33. struct device_driver *driver;
  34. };
  35. #define to_driver(obj) container_of(obj, struct driver_private, kobj)
  36. /* initialisation functions */
  37. extern int devices_init(void);
  38. extern int buses_init(void);
  39. extern int classes_init(void);
  40. extern int firmware_init(void);
  41. #ifdef CONFIG_SYS_HYPERVISOR
  42. extern int hypervisor_init(void);
  43. #else
  44. static inline int hypervisor_init(void) { return 0; }
  45. #endif
  46. extern int platform_bus_init(void);
  47. extern int system_bus_init(void);
  48. extern int cpu_dev_init(void);
  49. extern int bus_add_device(struct device *dev);
  50. extern void bus_attach_device(struct device *dev);
  51. extern void bus_remove_device(struct device *dev);
  52. extern int bus_add_driver(struct device_driver *drv);
  53. extern void bus_remove_driver(struct device_driver *drv);
  54. extern void driver_detach(struct device_driver *drv);
  55. extern int driver_probe_device(struct device_driver *drv, struct device *dev);
  56. extern void sysdev_shutdown(void);
  57. extern int sysdev_suspend(pm_message_t state);
  58. extern int sysdev_resume(void);
  59. static inline struct class_device *to_class_dev(struct kobject *obj)
  60. {
  61. return container_of(obj, struct class_device, kobj);
  62. }
  63. static inline
  64. struct class_device_attribute *to_class_dev_attr(struct attribute *_attr)
  65. {
  66. return container_of(_attr, struct class_device_attribute, attr);
  67. }
  68. extern char *make_class_name(const char *name, struct kobject *kobj);
  69. extern int devres_release_all(struct device *dev);
  70. extern struct kset *devices_kset;
  71. #if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS)
  72. extern void module_add_driver(struct module *mod, struct device_driver *drv);
  73. extern void module_remove_driver(struct device_driver *drv);
  74. #else
  75. static inline void module_add_driver(struct module *mod,
  76. struct device_driver *drv) { }
  77. static inline void module_remove_driver(struct device_driver *drv) { }
  78. #endif