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 66fb069a5dSGreg Kroah-Hartman /** 67fb069a5dSGreg Kroah-Hartman * struct device_private - structure to hold the private to the driver core portions of the device structure. 68fb069a5dSGreg Kroah-Hartman * 69f791b8c8SGreg Kroah-Hartman * @klist_children - klist containing all children of this device 70f791b8c8SGreg Kroah-Hartman * @knode_parent - node in sibling list 718940b4f3SGreg Kroah-Hartman * @knode_driver - node in driver list 72fb069a5dSGreg Kroah-Hartman * @device - pointer back to the struct class that this structure is 73fb069a5dSGreg Kroah-Hartman * associated with. 74fb069a5dSGreg Kroah-Hartman * 75fb069a5dSGreg Kroah-Hartman * Nothing outside of the driver core should ever touch these fields. 76fb069a5dSGreg Kroah-Hartman */ 77fb069a5dSGreg Kroah-Hartman struct device_private { 78f791b8c8SGreg Kroah-Hartman struct klist klist_children; 79f791b8c8SGreg Kroah-Hartman struct klist_node knode_parent; 808940b4f3SGreg Kroah-Hartman struct klist_node knode_driver; 81fb069a5dSGreg Kroah-Hartman struct device *device; 82fb069a5dSGreg Kroah-Hartman }; 83f791b8c8SGreg Kroah-Hartman #define to_device_private_parent(obj) \ 84f791b8c8SGreg Kroah-Hartman container_of(obj, struct device_private, knode_parent) 858940b4f3SGreg Kroah-Hartman #define to_device_private_driver(obj) \ 868940b4f3SGreg Kroah-Hartman container_of(obj, struct device_private, knode_driver) 87fb069a5dSGreg Kroah-Hartman 88c6f7e72aSGreg Kroah-Hartman /* initialisation functions */ 89a1bdc7aaSBen Dooks extern int devices_init(void); 90a1bdc7aaSBen Dooks extern int buses_init(void); 91a1bdc7aaSBen Dooks extern int classes_init(void); 92a1bdc7aaSBen Dooks extern int firmware_init(void); 934039483fSMichael Holzheu #ifdef CONFIG_SYS_HYPERVISOR 944039483fSMichael Holzheu extern int hypervisor_init(void); 954039483fSMichael Holzheu #else 964039483fSMichael Holzheu static inline int hypervisor_init(void) { return 0; } 974039483fSMichael Holzheu #endif 98a1bdc7aaSBen Dooks extern int platform_bus_init(void); 99a1bdc7aaSBen Dooks extern int system_bus_init(void); 100a1bdc7aaSBen Dooks extern int cpu_dev_init(void); 101a1bdc7aaSBen Dooks 1021da177e4SLinus Torvalds extern int bus_add_device(struct device *dev); 103c6a46696SCornelia Huck extern void bus_attach_device(struct device *dev); 1041da177e4SLinus Torvalds extern void bus_remove_device(struct device *dev); 1051da177e4SLinus Torvalds 1064a3ad20cSGreg Kroah-Hartman extern int bus_add_driver(struct device_driver *drv); 1074a3ad20cSGreg Kroah-Hartman extern void bus_remove_driver(struct device_driver *drv); 1081da177e4SLinus Torvalds 10907e4a3e2Smochel@digitalimplant.org extern void driver_detach(struct device_driver *drv); 1104a3ad20cSGreg Kroah-Hartman extern int driver_probe_device(struct device_driver *drv, struct device *dev); 11149b420a1SMing Lei static inline int driver_match_device(struct device_driver *drv, 11249b420a1SMing Lei struct device *dev) 11349b420a1SMing Lei { 11449b420a1SMing Lei return drv->bus->match && drv->bus->match(dev, drv); 11549b420a1SMing Lei } 11607e4a3e2Smochel@digitalimplant.org 117f67d115fSAdrian Bunk extern void sysdev_shutdown(void); 118f67d115fSAdrian Bunk 119aa49b913SGreg Kroah-Hartman extern char *make_class_name(const char *name, struct kobject *kobj); 1201da177e4SLinus Torvalds 1212a013455SAdrian Bunk extern int devres_release_all(struct device *dev); 122823bccfcSGreg Kroah-Hartman 123881c6cfdSGreg Kroah-Hartman extern struct kset *devices_kset; 124c63469a3SGreg Kroah-Hartman 12592b42141SRandy Dunlap #if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS) 126c63469a3SGreg Kroah-Hartman extern void module_add_driver(struct module *mod, struct device_driver *drv); 127c63469a3SGreg Kroah-Hartman extern void module_remove_driver(struct device_driver *drv); 128c63469a3SGreg Kroah-Hartman #else 129c63469a3SGreg Kroah-Hartman static inline void module_add_driver(struct module *mod, 130c63469a3SGreg Kroah-Hartman struct device_driver *drv) { } 131c63469a3SGreg Kroah-Hartman static inline void module_remove_driver(struct device_driver *drv) { } 132c63469a3SGreg Kroah-Hartman #endif 133