1 2 /** 3 * struct bus_type_private - structure to hold the private to the driver core portions of the bus_type structure. 4 * 5 * @subsys - the struct kset that defines this bus. This is the main kobject 6 * @drivers_kset - the list of drivers associated with this bus 7 * @devices_kset - the list of devices associated with this bus 8 * @klist_devices - the klist to iterate over the @devices_kset 9 * @klist_drivers - the klist to iterate over the @drivers_kset 10 * @bus_notifier - the bus notifier list for anything that cares about things 11 * on this bus. 12 * @bus - pointer back to the struct bus_type that this structure is associated 13 * with. 14 * 15 * This structure is the one that is the actual kobject allowing struct 16 * bus_type to be statically allocated safely. Nothing outside of the driver 17 * core should ever touch these fields. 18 */ 19 struct bus_type_private { 20 struct kset subsys; 21 struct kset *drivers_kset; 22 struct kset *devices_kset; 23 struct klist klist_devices; 24 struct klist klist_drivers; 25 struct blocking_notifier_head bus_notifier; 26 unsigned int drivers_autoprobe:1; 27 struct bus_type *bus; 28 }; 29 30 struct driver_private { 31 struct kobject kobj; 32 struct klist klist_devices; 33 struct klist_node knode_bus; 34 struct module_kobject *mkobj; 35 struct device_driver *driver; 36 }; 37 #define to_driver(obj) container_of(obj, struct driver_private, kobj) 38 39 40 /** 41 * struct class_private - structure to hold the private to the driver core portions of the class structure. 42 * 43 * @subsys - the struct kset that defines this class. This is the main kobject 44 * @children - list of class_devices associated with this class 45 * @class_devices - list of devices associated with this class 46 * @interfaces - list of class_interfaces associated with this class 47 * @class_dirs - 48 * @sem - semaphore to protect the children, devices, and interfaces lists. 49 * @class - pointer back to the struct class that this structure is associated 50 * with. 51 * 52 * This structure is the one that is the actual kobject allowing struct 53 * class to be statically allocated safely. Nothing outside of the driver 54 * core should ever touch these fields. 55 */ 56 struct class_private { 57 struct kset subsys; 58 struct list_head class_devices; 59 struct list_head interfaces; 60 struct kset class_dirs; 61 struct semaphore sem; 62 struct class *class; 63 }; 64 #define to_class(obj) container_of(obj, struct class_private, subsys.kobj) 65 66 /* initialisation functions */ 67 extern int devices_init(void); 68 extern int buses_init(void); 69 extern int classes_init(void); 70 extern int firmware_init(void); 71 #ifdef CONFIG_SYS_HYPERVISOR 72 extern int hypervisor_init(void); 73 #else 74 static inline int hypervisor_init(void) { return 0; } 75 #endif 76 extern int platform_bus_init(void); 77 extern int system_bus_init(void); 78 extern int cpu_dev_init(void); 79 80 extern int bus_add_device(struct device *dev); 81 extern void bus_attach_device(struct device *dev); 82 extern void bus_remove_device(struct device *dev); 83 84 extern int bus_add_driver(struct device_driver *drv); 85 extern void bus_remove_driver(struct device_driver *drv); 86 87 extern void driver_detach(struct device_driver *drv); 88 extern int driver_probe_device(struct device_driver *drv, struct device *dev); 89 90 extern void sysdev_shutdown(void); 91 extern int sysdev_suspend(pm_message_t state); 92 extern int sysdev_resume(void); 93 94 extern char *make_class_name(const char *name, struct kobject *kobj); 95 96 extern int devres_release_all(struct device *dev); 97 98 extern struct kset *devices_kset; 99 100 #if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS) 101 extern void module_add_driver(struct module *mod, struct device_driver *drv); 102 extern void module_remove_driver(struct device_driver *drv); 103 #else 104 static inline void module_add_driver(struct module *mod, 105 struct device_driver *drv) { } 106 static inline void module_remove_driver(struct device_driver *drv) { } 107 #endif 108