1a1bdc7aaSBen Dooks 2c6f7e72aSGreg Kroah-Hartman /** 3c6f7e72aSGreg Kroah-Hartman * struct bus_type_private - structure to hold the private to the driver core portions of the bus_type structure. 4c6f7e72aSGreg Kroah-Hartman * 5c6f7e72aSGreg Kroah-Hartman * @subsys - the struct kset that defines this bus. This is the main kobject 6c6f7e72aSGreg Kroah-Hartman * @drivers_kset - the list of drivers associated with this bus 7c6f7e72aSGreg Kroah-Hartman * @devices_kset - the list of devices associated with this bus 8c6f7e72aSGreg Kroah-Hartman * @klist_devices - the klist to iterate over the @devices_kset 9c6f7e72aSGreg Kroah-Hartman * @klist_drivers - the klist to iterate over the @drivers_kset 10c6f7e72aSGreg Kroah-Hartman * @bus_notifier - the bus notifier list for anything that cares about things 11c6f7e72aSGreg Kroah-Hartman * on this bus. 12c6f7e72aSGreg Kroah-Hartman * @bus - pointer back to the struct bus_type that this structure is associated 13c6f7e72aSGreg Kroah-Hartman * with. 14c6f7e72aSGreg Kroah-Hartman * 15c6f7e72aSGreg Kroah-Hartman * This structure is the one that is the actual kobject allowing struct 16c6f7e72aSGreg Kroah-Hartman * bus_type to be statically allocated safely. Nothing outside of the driver 17c6f7e72aSGreg Kroah-Hartman * core should ever touch these fields. 18c6f7e72aSGreg Kroah-Hartman */ 19c6f7e72aSGreg Kroah-Hartman struct bus_type_private { 20c6f7e72aSGreg Kroah-Hartman struct kset subsys; 21c6f7e72aSGreg Kroah-Hartman struct kset *drivers_kset; 22c6f7e72aSGreg Kroah-Hartman struct kset *devices_kset; 23c6f7e72aSGreg Kroah-Hartman struct klist klist_devices; 24c6f7e72aSGreg Kroah-Hartman struct klist klist_drivers; 25c6f7e72aSGreg Kroah-Hartman struct blocking_notifier_head bus_notifier; 26c6f7e72aSGreg Kroah-Hartman unsigned int drivers_autoprobe:1; 27c6f7e72aSGreg Kroah-Hartman struct bus_type *bus; 28c6f7e72aSGreg Kroah-Hartman }; 29a1bdc7aaSBen Dooks 30e5dd1278SGreg Kroah-Hartman struct driver_private { 31e5dd1278SGreg Kroah-Hartman struct kobject kobj; 32e5dd1278SGreg Kroah-Hartman struct klist klist_devices; 33e5dd1278SGreg Kroah-Hartman struct klist_node knode_bus; 34e5dd1278SGreg Kroah-Hartman struct module_kobject *mkobj; 35e5dd1278SGreg Kroah-Hartman struct device_driver *driver; 36e5dd1278SGreg Kroah-Hartman }; 37e5dd1278SGreg Kroah-Hartman #define to_driver(obj) container_of(obj, struct driver_private, kobj) 38c6f7e72aSGreg Kroah-Hartman 397c71448bSGreg Kroah-Hartman 407c71448bSGreg Kroah-Hartman /** 417c71448bSGreg Kroah-Hartman * struct class_private - structure to hold the private to the driver core portions of the class structure. 427c71448bSGreg Kroah-Hartman * 431fbfee6cSGreg Kroah-Hartman * @class_subsys - the struct kset that defines this class. This is the main kobject 4497ae69fdSGreg Kroah-Hartman * @class_devices - list of devices associated with this class 45184f1f77SGreg Kroah-Hartman * @class_interfaces - list of class_interfaces associated with this class 461e412508SGreg Kroah-Hartman * @class_dirs - "glue" directory for virtual devices associated with this class 47f75b1c60SDave Young * @class_mutex - mutex to protect the children, devices, and interfaces lists. 487c71448bSGreg Kroah-Hartman * @class - pointer back to the struct class that this structure is associated 497c71448bSGreg Kroah-Hartman * with. 507c71448bSGreg Kroah-Hartman * 517c71448bSGreg Kroah-Hartman * This structure is the one that is the actual kobject allowing struct 527c71448bSGreg Kroah-Hartman * class to be statically allocated safely. Nothing outside of the driver 537c71448bSGreg Kroah-Hartman * core should ever touch these fields. 547c71448bSGreg Kroah-Hartman */ 557c71448bSGreg Kroah-Hartman struct class_private { 561fbfee6cSGreg Kroah-Hartman struct kset class_subsys; 575a3ceb86STejun Heo struct klist class_devices; 58184f1f77SGreg Kroah-Hartman struct list_head class_interfaces; 597c71448bSGreg Kroah-Hartman struct kset class_dirs; 60f75b1c60SDave Young struct mutex class_mutex; 617c71448bSGreg Kroah-Hartman struct class *class; 627c71448bSGreg Kroah-Hartman }; 631fbfee6cSGreg Kroah-Hartman #define to_class(obj) \ 641fbfee6cSGreg Kroah-Hartman container_of(obj, struct class_private, class_subsys.kobj) 657c71448bSGreg Kroah-Hartman 66c6f7e72aSGreg Kroah-Hartman /* initialisation functions */ 67a1bdc7aaSBen Dooks extern int devices_init(void); 68a1bdc7aaSBen Dooks extern int buses_init(void); 69a1bdc7aaSBen Dooks extern int classes_init(void); 70a1bdc7aaSBen Dooks extern int firmware_init(void); 714039483fSMichael Holzheu #ifdef CONFIG_SYS_HYPERVISOR 724039483fSMichael Holzheu extern int hypervisor_init(void); 734039483fSMichael Holzheu #else 744039483fSMichael Holzheu static inline int hypervisor_init(void) { return 0; } 754039483fSMichael Holzheu #endif 76a1bdc7aaSBen Dooks extern int platform_bus_init(void); 77a1bdc7aaSBen Dooks extern int system_bus_init(void); 78a1bdc7aaSBen Dooks extern int cpu_dev_init(void); 79a1bdc7aaSBen Dooks 801da177e4SLinus Torvalds extern int bus_add_device(struct device *dev); 81c6a46696SCornelia Huck extern void bus_attach_device(struct device *dev); 821da177e4SLinus Torvalds extern void bus_remove_device(struct device *dev); 831da177e4SLinus Torvalds 844a3ad20cSGreg Kroah-Hartman extern int bus_add_driver(struct device_driver *drv); 854a3ad20cSGreg Kroah-Hartman extern void bus_remove_driver(struct device_driver *drv); 861da177e4SLinus Torvalds 8707e4a3e2Smochel@digitalimplant.org extern void driver_detach(struct device_driver *drv); 884a3ad20cSGreg Kroah-Hartman extern int driver_probe_device(struct device_driver *drv, struct device *dev); 8949b420a1SMing Lei static inline int driver_match_device(struct device_driver *drv, 9049b420a1SMing Lei struct device *dev) 9149b420a1SMing Lei { 9249b420a1SMing Lei return drv->bus->match && drv->bus->match(dev, drv); 9349b420a1SMing Lei } 9407e4a3e2Smochel@digitalimplant.org 95f67d115fSAdrian Bunk extern void sysdev_shutdown(void); 96f67d115fSAdrian Bunk 97aa49b913SGreg Kroah-Hartman extern char *make_class_name(const char *name, struct kobject *kobj); 981da177e4SLinus Torvalds 992a013455SAdrian Bunk extern int devres_release_all(struct device *dev); 100823bccfcSGreg Kroah-Hartman 101881c6cfdSGreg Kroah-Hartman extern struct kset *devices_kset; 102c63469a3SGreg Kroah-Hartman 10392b42141SRandy Dunlap #if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS) 104c63469a3SGreg Kroah-Hartman extern void module_add_driver(struct module *mod, struct device_driver *drv); 105c63469a3SGreg Kroah-Hartman extern void module_remove_driver(struct device_driver *drv); 106c63469a3SGreg Kroah-Hartman #else 107c63469a3SGreg Kroah-Hartman static inline void module_add_driver(struct module *mod, 108c63469a3SGreg Kroah-Hartman struct device_driver *drv) { } 109c63469a3SGreg Kroah-Hartman static inline void module_remove_driver(struct device_driver *drv) { } 110c63469a3SGreg Kroah-Hartman #endif 111