blob: 19f49e41ce5de2ceb37adb1a278fa786ffa54391 [file] [log] [blame]
Ben Dooksa1bdc7a2005-10-13 17:54:41 +01001
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -07002/**
Kay Sievers6b6e39a2010-11-15 23:13:18 +01003 * struct subsys_private - structure to hold the private to the driver core portions of the bus_type/class structure.
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -07004 *
Kay Sievers6b6e39a2010-11-15 23:13:18 +01005 * @subsys - the struct kset that defines this subsystem
6 * @devices_kset - the list of devices associated
7 *
8 * @drivers_kset - the list of drivers associated
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -07009 * @klist_devices - the klist to iterate over the @devices_kset
10 * @klist_drivers - the klist to iterate over the @drivers_kset
11 * @bus_notifier - the bus notifier list for anything that cares about things
Kay Sievers6b6e39a2010-11-15 23:13:18 +010012 * on this bus.
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070013 * @bus - pointer back to the struct bus_type that this structure is associated
Kay Sievers6b6e39a2010-11-15 23:13:18 +010014 * with.
15 *
16 * @class_interfaces - list of class_interfaces associated
17 * @glue_dirs - "glue" directory to put in-between the parent device to
18 * avoid namespace conflicts
19 * @class_mutex - mutex to protect the children, devices, and interfaces lists.
20 * @class - pointer back to the struct class that this structure is associated
21 * with.
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070022 *
23 * This structure is the one that is the actual kobject allowing struct
Kay Sievers6b6e39a2010-11-15 23:13:18 +010024 * bus_type/class to be statically allocated safely. Nothing outside of the
25 * driver core should ever touch these fields.
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070026 */
Kay Sievers6b6e39a2010-11-15 23:13:18 +010027struct subsys_private {
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070028 struct kset subsys;
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070029 struct kset *devices_kset;
Kay Sievers6b6e39a2010-11-15 23:13:18 +010030
31 struct kset *drivers_kset;
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070032 struct klist klist_devices;
33 struct klist klist_drivers;
34 struct blocking_notifier_head bus_notifier;
35 unsigned int drivers_autoprobe:1;
36 struct bus_type *bus;
Kay Sievers6b6e39a2010-11-15 23:13:18 +010037
38 struct list_head class_interfaces;
39 struct kset glue_dirs;
40 struct mutex class_mutex;
41 struct class *class;
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070042};
Kay Sievers6b6e39a2010-11-15 23:13:18 +010043#define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj)
Ben Dooksa1bdc7a2005-10-13 17:54:41 +010044
Greg Kroah-Hartmane5dd1272007-11-28 15:59:15 -080045struct driver_private {
46 struct kobject kobj;
47 struct klist klist_devices;
48 struct klist_node knode_bus;
49 struct module_kobject *mkobj;
50 struct device_driver *driver;
51};
52#define to_driver(obj) container_of(obj, struct driver_private, kobj)
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070053
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080054/**
55 * struct device_private - structure to hold the private to the driver core portions of the device structure.
56 *
Greg Kroah-Hartmanf791b8c2008-12-16 12:24:56 -080057 * @klist_children - klist containing all children of this device
58 * @knode_parent - node in sibling list
Greg Kroah-Hartman8940b4f2008-12-16 12:25:49 -080059 * @knode_driver - node in driver list
Greg Kroah-Hartmanae1b4172008-12-16 12:26:21 -080060 * @knode_bus - node in bus list
Greg Kroah-Hartmanb4028432009-05-11 14:16:57 -070061 * @driver_data - private pointer for driver specific info. Will turn into a
62 * list soon.
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080063 * @device - pointer back to the struct class that this structure is
64 * associated with.
65 *
66 * Nothing outside of the driver core should ever touch these fields.
67 */
68struct device_private {
Greg Kroah-Hartmanf791b8c2008-12-16 12:24:56 -080069 struct klist klist_children;
70 struct klist_node knode_parent;
Greg Kroah-Hartman8940b4f2008-12-16 12:25:49 -080071 struct klist_node knode_driver;
Greg Kroah-Hartmanae1b4172008-12-16 12:26:21 -080072 struct klist_node knode_bus;
Greg Kroah-Hartmanb4028432009-05-11 14:16:57 -070073 void *driver_data;
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080074 struct device *device;
75};
Greg Kroah-Hartmanf791b8c2008-12-16 12:24:56 -080076#define to_device_private_parent(obj) \
77 container_of(obj, struct device_private, knode_parent)
Greg Kroah-Hartman8940b4f2008-12-16 12:25:49 -080078#define to_device_private_driver(obj) \
79 container_of(obj, struct device_private, knode_driver)
Greg Kroah-Hartmanae1b4172008-12-16 12:26:21 -080080#define to_device_private_bus(obj) \
81 container_of(obj, struct device_private, knode_bus)
Greg Kroah-Hartmanfb069a52008-12-16 12:23:36 -080082
Greg Kroah-Hartmanb4028432009-05-11 14:16:57 -070083extern int device_private_init(struct device *dev);
84
Greg Kroah-Hartmanc6f7e722007-11-01 19:41:16 -070085/* initialisation functions */
Ben Dooksa1bdc7a2005-10-13 17:54:41 +010086extern int devices_init(void);
87extern int buses_init(void);
88extern int classes_init(void);
89extern int firmware_init(void);
Michael Holzheu40394832006-05-09 12:53:49 +020090#ifdef CONFIG_SYS_HYPERVISOR
91extern int hypervisor_init(void);
92#else
93static inline int hypervisor_init(void) { return 0; }
94#endif
Ben Dooksa1bdc7a2005-10-13 17:54:41 +010095extern int platform_bus_init(void);
96extern int system_bus_init(void);
97extern int cpu_dev_init(void);
Ben Dooksa1bdc7a2005-10-13 17:54:41 +010098
Greg Kroah-Hartman4a3ad202008-01-24 22:50:12 -080099extern int bus_add_device(struct device *dev);
Alan Stern2023c612009-07-30 15:27:18 -0400100extern void bus_probe_device(struct device *dev);
Greg Kroah-Hartman4a3ad202008-01-24 22:50:12 -0800101extern void bus_remove_device(struct device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
Greg Kroah-Hartman4a3ad202008-01-24 22:50:12 -0800103extern int bus_add_driver(struct device_driver *drv);
104extern void bus_remove_driver(struct device_driver *drv);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105
Greg Kroah-Hartman4a3ad202008-01-24 22:50:12 -0800106extern void driver_detach(struct device_driver *drv);
107extern int driver_probe_device(struct device_driver *drv, struct device *dev);
Ming Lei49b420a2009-01-21 23:27:47 +0800108static inline int driver_match_device(struct device_driver *drv,
109 struct device *dev)
110{
Ming Lei5247aec2009-03-27 21:50:00 +0800111 return drv->bus->match ? drv->bus->match(dev, drv) : 1;
Ming Lei49b420a2009-01-21 23:27:47 +0800112}
mochel@digitalimplant.org07e4a3e2005-03-21 10:52:54 -0800113
Adrian Bunkf67d1152006-01-19 17:30:17 +0100114extern void sysdev_shutdown(void);
Adrian Bunkf67d1152006-01-19 17:30:17 +0100115
Greg Kroah-Hartmanaa49b912006-06-20 13:59:20 -0700116extern char *make_class_name(const char *name, struct kobject *kobj);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
Adrian Bunk2a013452007-06-18 01:42:54 +0200118extern int devres_release_all(struct device *dev);
Greg Kroah-Hartman823bccf2007-04-13 13:15:19 -0700119
Greg Kroah-Hartman881c6cf2007-11-01 09:29:06 -0600120extern struct kset *devices_kset;
Greg Kroah-Hartmanc63469a2007-11-28 12:23:18 -0800121
Randy Dunlap92b42142007-12-31 10:05:43 -0800122#if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS)
Greg Kroah-Hartmanc63469a2007-11-28 12:23:18 -0800123extern void module_add_driver(struct module *mod, struct device_driver *drv);
124extern void module_remove_driver(struct device_driver *drv);
125#else
126static inline void module_add_driver(struct module *mod,
127 struct device_driver *drv) { }
128static inline void module_remove_driver(struct device_driver *drv) { }
129#endif
Kay Sievers2b2af542009-04-30 15:23:42 +0200130
131#ifdef CONFIG_DEVTMPFS
132extern int devtmpfs_init(void);
133#else
134static inline int devtmpfs_init(void) { return 0; }
135#endif