#include <linux/notifier.h> /** * struct subsys_private - structure to hold the private to the driver core portions of the bus_type/class structure. * * @subsys - the struct kset that defines this subsystem * @devices_kset - the subsystem's 'devices' directory * @interfaces - list of subsystem interfaces associated * @mutex - protect the devices, and interfaces lists. * * @drivers_kset - the list of drivers associated * @klist_devices - the klist to iterate over the @devices_kset * @klist_drivers - the klist to iterate over the @drivers_kset * @bus_notifier - the bus notifier list for anything that cares about things * on this bus. * @bus - pointer back to the struct bus_type that this structure is associated * with. * * @glue_dirs - "glue" directory to put in-between the parent device to * avoid namespace conflicts * @class - pointer back to the struct class that this structure is associated * with. * * This structure is the one that is the actual kobject allowing struct * bus_type/class to be statically allocated safely. Nothing outside of the * driver core should ever touch these fields. */ struct subsys_private { struct kset subsys; struct kset *devices_kset; struct list_head interfaces; struct mutex mutex; struct kset *drivers_kset; struct klist klist_devices; struct klist klist_drivers; struct blocking_notifier_head bus_notifier; unsigned int drivers_autoprobe:1; struct bus_type *bus; struct kset glue_dirs; struct class *class; }; #define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj) struct driver_private { struct kobject kobj; struct klist klist_devices; struct klist_node knode_bus; struct module_kobject *mkobj; struct device_driver *driver; }; #define to_driver(obj) container_of(obj, struct driver_private, kobj) /** * struct device_private - structure to hold the private to the driver core portions of the device structure. * * @klist_children - klist containing all children of this device * @knode_parent - node in sibling list * @knode_driver - node in driver list * @knode_bus - node in bus list * @deferred_probe - entry in deferred_probe_list which is used to retry the * binding of drivers which were unable to get all the resources needed by * the device; typically because it depends on another driver getting * probed first. * @device - pointer back to the struct class that this structure is * associated with. * * Nothing outside of the driver core should ever touch these fields. */ struct device_private { struct klist klist_children; struct klist_node knode_parent; struct klist_node knode_driver; struct klist_node knode_bus; struct list_head deferred_probe; struct device *device; }; #define to_device_private_parent(obj) \ container_of(obj, struct device_private, knode_parent) #define to_device_private_driver(obj) \ container_of(obj, struct device_private, knode_driver) #define to_device_private_bus(obj) \ container_of(obj, struct device_private, knode_bus) extern int device_private_init(struct device *dev); /* initialisation functions */ extern int devices_init(void); extern int buses_init(void); extern int classes_init(void); extern int firmware_init(void); #ifdef CONFIG_SYS_HYPERVISOR extern int hypervisor_init(void); #else static inline int hypervisor_init(void) { return 0; } #endif extern int platform_bus_init(void); extern void cpu_dev_init(void); extern void container_dev_init(void); struct kobject *virtual_device_parent(struct device *dev); extern int bus_add_device(struct device *dev); extern void bus_probe_device(struct device *dev); extern void bus_remove_device(struct device *dev); extern int bus_add_driver(struct device_driver *drv); extern void bus_remove_driver(struct device_driver *drv); extern void driver_detach(struct device_driver *drv); extern int driver_probe_device(struct device_driver *drv, struct device *dev); extern void driver_deferred_probe_del(struct device *dev); static inline int driver_match_device(struct device_driver *drv, struct device *dev) { return drv->bus->match ? drv->bus->match(dev, drv) : 1; } extern bool driver_allows_async_probing(struct device_driver *drv); extern int driver_add_groups(struct device_driver *drv, const struct attribute_group **groups); extern void driver_remove_groups(struct device_driver *drv, const struct attribute_group **groups); extern int device_add_groups(struct device *dev, const struct attribute_group **groups); extern void device_remove_groups(struct device *dev, const struct attribute_group **groups); extern char *make_class_name(const char *name, struct kobject *kobj); extern int devres_release_all(struct device *dev); /* /sys/devices directory */ extern struct kset *devices_kset; #if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS) extern void module_add_driver(struct module *mod, struct device_driver *drv); extern void module_remove_driver(struct device_driver *drv); #else static inline void module_add_driver(struct module *mod, struct device_driver *drv) { } static inline void module_remove_driver(struct device_driver *drv) { } #endif #ifdef CONFIG_DEVTMPFS extern int devtmpfs_init(void); #else static inline int devtmpfs_init(void) { return 0; } #endif