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 /* initialisation functions */
40 extern int devices_init(void);
41 extern int buses_init(void);
42 extern int classes_init(void);
43 extern int firmware_init(void);
44 #ifdef CONFIG_SYS_HYPERVISOR
45 extern int hypervisor_init(void);
46 #else
47 static inline int hypervisor_init(void) { return 0; }
48 #endif
49 extern int platform_bus_init(void);
50 extern int system_bus_init(void);
51 extern int cpu_dev_init(void);
52
53 extern int bus_add_device(struct device *dev);
54 extern void bus_attach_device(struct device *dev);
55 extern void bus_remove_device(struct device *dev);
56
57 extern int bus_add_driver(struct device_driver *drv);
58 extern void bus_remove_driver(struct device_driver *drv);
59
60 extern void driver_detach(struct device_driver *drv);
61 extern int driver_probe_device(struct device_driver *drv, struct device *dev);
62
63 extern void sysdev_shutdown(void);
64 extern int sysdev_suspend(pm_message_t state);
65 extern int sysdev_resume(void);
66
67 static inline struct class_device *to_class_dev(struct kobject *obj)
68 {
69 return container_of(obj, struct class_device, kobj);
70 }
71
72 static inline
73 struct class_device_attribute *to_class_dev_attr(struct attribute *_attr)
74 {
75 return container_of(_attr, struct class_device_attribute, attr);
76 }
77
78 extern char *make_class_name(const char *name, struct kobject *kobj);
79
80 extern int devres_release_all(struct device *dev);
81
82 extern struct kset *devices_kset;
83
84 #if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS)
85 extern void module_add_driver(struct module *mod, struct device_driver *drv);
86 extern void module_remove_driver(struct device_driver *drv);
87 #else
88 static inline void module_add_driver(struct module *mod,
89 struct device_driver *drv) { }
90 static inline void module_remove_driver(struct device_driver *drv) { }
91 #endif
92
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