blob: ddc97496db4a4af3a1c7438b43622d621264ab13 [file] [log] [blame]
Ben Dooksa1bdc7a2005-10-13 17:54:41 +01001
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -07002/**
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 */
19struct 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};
Ben Dooksa1bdc7a2005-10-13 17:54:41 +010029
Greg Kroah-Hartmane5dd1272007-11-28 15:59:15 -080030struct 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)
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070038
Greg Kroah-Hartman7c714482008-01-22 18:17:41 -050039
40/**
41 * struct class_private - structure to hold the private to the driver core portions of the class structure.
42 *
Greg Kroah-Hartman1fbfee62008-05-28 09:28:39 -070043 * @class_subsys - the struct kset that defines this class. This is the main kobject
Greg Kroah-Hartman97ae69f2008-05-28 09:28:39 -070044 * @class_devices - list of devices associated with this class
Greg Kroah-Hartman184f1f72008-05-28 09:28:39 -070045 * @class_interfaces - list of class_interfaces associated with this class
Greg Kroah-Hartman1e412502008-05-28 09:28:39 -070046 * @class_dirs - "glue" directory for virtual devices associated with this class
Dave Youngf75b1c62008-05-28 09:28:39 -070047 * @class_mutex - mutex to protect the children, devices, and interfaces lists.
Greg Kroah-Hartman7c714482008-01-22 18:17:41 -050048 * @class - pointer back to the struct class that this structure is associated
49 * with.
50 *
51 * This structure is the one that is the actual kobject allowing struct
52 * class to be statically allocated safely. Nothing outside of the driver
53 * core should ever touch these fields.
54 */
55struct class_private {
Greg Kroah-Hartman1fbfee62008-05-28 09:28:39 -070056 struct kset class_subsys;
Tejun Heo5a3ceb82008-08-25 19:50:19 +020057 struct klist class_devices;
Greg Kroah-Hartman184f1f72008-05-28 09:28:39 -070058 struct list_head class_interfaces;
Greg Kroah-Hartman7c714482008-01-22 18:17:41 -050059 struct kset class_dirs;
Dave Youngf75b1c62008-05-28 09:28:39 -070060 struct mutex class_mutex;
Greg Kroah-Hartman7c714482008-01-22 18:17:41 -050061 struct class *class;
62};
Greg Kroah-Hartman1fbfee62008-05-28 09:28:39 -070063#define to_class(obj) \
64 container_of(obj, struct class_private, class_subsys.kobj)
Greg Kroah-Hartman7c714482008-01-22 18:17:41 -050065
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080066/**
67 * struct device_private - structure to hold the private to the driver core portions of the device structure.
68 *
Greg Kroah-Hartmanf791b8c2008-12-16 12:24:56 -080069 * @klist_children - klist containing all children of this device
70 * @knode_parent - node in sibling list
Greg Kroah-Hartman8940b4f2008-12-16 12:25:49 -080071 * @knode_driver - node in driver list
Greg Kroah-Hartmanae1b4172008-12-16 12:26:21 -080072 * @knode_bus - node in bus list
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080073 * @device - pointer back to the struct class that this structure is
74 * associated with.
75 *
76 * Nothing outside of the driver core should ever touch these fields.
77 */
78struct device_private {
Greg Kroah-Hartmanf791b8c2008-12-16 12:24:56 -080079 struct klist klist_children;
80 struct klist_node knode_parent;
Greg Kroah-Hartman8940b4f2008-12-16 12:25:49 -080081 struct klist_node knode_driver;
Greg Kroah-Hartmanae1b4172008-12-16 12:26:21 -080082 struct klist_node knode_bus;
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080083 struct device *device;
84};
Greg Kroah-Hartmanf791b8c2008-12-16 12:24:56 -080085#define to_device_private_parent(obj) \
86 container_of(obj, struct device_private, knode_parent)
Greg Kroah-Hartman8940b4f2008-12-16 12:25:49 -080087#define to_device_private_driver(obj) \
88 container_of(obj, struct device_private, knode_driver)
Greg Kroah-Hartmanae1b4172008-12-16 12:26:21 -080089#define to_device_private_bus(obj) \
90 container_of(obj, struct device_private, knode_bus)
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080091
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070092/* initialisation functions */
Ben Dooksa1bdc7a2005-10-13 17:54:41 +010093extern int devices_init(void);
94extern int buses_init(void);
95extern int classes_init(void);
96extern int firmware_init(void);
Michael Holzheu40394832006-05-09 12:53:49 +020097#ifdef CONFIG_SYS_HYPERVISOR
98extern int hypervisor_init(void);
99#else
100static inline int hypervisor_init(void) { return 0; }
101#endif
Ben Dooksa1bdc7a2005-10-13 17:54:41 +0100102extern int platform_bus_init(void);
103extern int system_bus_init(void);
104extern int cpu_dev_init(void);
Ben Dooksa1bdc7a2005-10-13 17:54:41 +0100105
Greg Kroah-Hartman4a3ad202008-01-24 22:50:12 -0800106extern int bus_add_device(struct device *dev);
107extern void bus_attach_device(struct device *dev);
108extern void bus_remove_device(struct device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
Greg Kroah-Hartman4a3ad202008-01-24 22:50:12 -0800110extern int bus_add_driver(struct device_driver *drv);
111extern void bus_remove_driver(struct device_driver *drv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
Greg Kroah-Hartman4a3ad202008-01-24 22:50:12 -0800113extern void driver_detach(struct device_driver *drv);
114extern int driver_probe_device(struct device_driver *drv, struct device *dev);
Ming Lei49b420a2009-01-21 23:27:47 +0800115static inline int driver_match_device(struct device_driver *drv,
116 struct device *dev)
117{
118 return drv->bus->match && drv->bus->match(dev, drv);
119}
mochel@digitalimplant.org07e4a3e2005-03-21 10:52:54 -0800120
Adrian Bunkf67d1152006-01-19 17:30:17 +0100121extern void sysdev_shutdown(void);
Adrian Bunkf67d1152006-01-19 17:30:17 +0100122
Greg Kroah-Hartmanaa49b912006-06-20 13:59:20 -0700123extern char *make_class_name(const char *name, struct kobject *kobj);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124
Adrian Bunk2a013452007-06-18 01:42:54 +0200125extern int devres_release_all(struct device *dev);
Greg Kroah-Hartman823bccf2007-04-13 13:15:19 -0700126
Greg Kroah-Hartman881c6cfd2007-11-01 09:29:06 -0600127extern struct kset *devices_kset;
Greg Kroah-Hartmanc63469a2007-11-28 12:23:18 -0800128
Randy Dunlap92b42142007-12-31 10:05:43 -0800129#if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS)
Greg Kroah-Hartmanc63469a2007-11-28 12:23:18 -0800130extern void module_add_driver(struct module *mod, struct device_driver *drv);
131extern void module_remove_driver(struct device_driver *drv);
132#else
133static inline void module_add_driver(struct module *mod,
134 struct device_driver *drv) { }
135static inline void module_remove_driver(struct device_driver *drv) { }
136#endif