Paul Gortmaker | ba33162 | 2011-05-26 18:08:35 -0400 | [diff] [blame] | 1 | #include <linux/notifier.h> |
Ben Dooks | a1bdc7a | 2005-10-13 17:54:41 +0100 | [diff] [blame] | 2 | |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 3 | /** |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 4 | * struct subsys_private - structure to hold the private to the driver core portions of the bus_type/class structure. |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 5 | * |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 6 | * @subsys - the struct kset that defines this subsystem |
Kay Sievers | ca22e56 | 2011-12-14 14:29:38 -0800 | [diff] [blame] | 7 | * @devices_kset - the subsystem's 'devices' directory |
| 8 | * @interfaces - list of subsystem interfaces associated |
| 9 | * @mutex - protect the devices, and interfaces lists. |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 10 | * |
| 11 | * @drivers_kset - the list of drivers associated |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 12 | * @klist_devices - the klist to iterate over the @devices_kset |
| 13 | * @klist_drivers - the klist to iterate over the @drivers_kset |
| 14 | * @bus_notifier - the bus notifier list for anything that cares about things |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 15 | * on this bus. |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 16 | * @bus - pointer back to the struct bus_type that this structure is associated |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 17 | * with. |
| 18 | * |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 19 | * @glue_dirs - "glue" directory to put in-between the parent device to |
| 20 | * avoid namespace conflicts |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 21 | * @class - pointer back to the struct class that this structure is associated |
| 22 | * with. |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 23 | * |
| 24 | * This structure is the one that is the actual kobject allowing struct |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 25 | * bus_type/class to be statically allocated safely. Nothing outside of the |
| 26 | * driver core should ever touch these fields. |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 27 | */ |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 28 | struct subsys_private { |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 29 | struct kset subsys; |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 30 | struct kset *devices_kset; |
Kay Sievers | ca22e56 | 2011-12-14 14:29:38 -0800 | [diff] [blame] | 31 | struct list_head interfaces; |
| 32 | struct mutex mutex; |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 33 | |
| 34 | struct kset *drivers_kset; |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 35 | struct klist klist_devices; |
| 36 | struct klist klist_drivers; |
| 37 | struct blocking_notifier_head bus_notifier; |
| 38 | unsigned int drivers_autoprobe:1; |
| 39 | struct bus_type *bus; |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 40 | |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 41 | struct kset glue_dirs; |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 42 | struct class *class; |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 43 | }; |
Kay Sievers | 6b6e39a | 2010-11-15 23:13:18 +0100 | [diff] [blame] | 44 | #define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj) |
Ben Dooks | a1bdc7a | 2005-10-13 17:54:41 +0100 | [diff] [blame] | 45 | |
Greg Kroah-Hartman | e5dd127 | 2007-11-28 15:59:15 -0800 | [diff] [blame] | 46 | struct driver_private { |
| 47 | struct kobject kobj; |
| 48 | struct klist klist_devices; |
| 49 | struct klist_node knode_bus; |
| 50 | struct module_kobject *mkobj; |
| 51 | struct device_driver *driver; |
| 52 | }; |
| 53 | #define to_driver(obj) container_of(obj, struct driver_private, kobj) |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 54 | |
Greg Kroah-Hartman | fb069a5 | 2008-12-16 12:23:36 -0800 | [diff] [blame] | 55 | /** |
| 56 | * struct device_private - structure to hold the private to the driver core portions of the device structure. |
| 57 | * |
Greg Kroah-Hartman | f791b8c | 2008-12-16 12:24:56 -0800 | [diff] [blame] | 58 | * @klist_children - klist containing all children of this device |
| 59 | * @knode_parent - node in sibling list |
Greg Kroah-Hartman | 8940b4f | 2008-12-16 12:25:49 -0800 | [diff] [blame] | 60 | * @knode_driver - node in driver list |
Greg Kroah-Hartman | ae1b417 | 2008-12-16 12:26:21 -0800 | [diff] [blame] | 61 | * @knode_bus - node in bus list |
Greg Kroah-Hartman | ef8a3fd | 2012-03-08 12:17:22 -0800 | [diff] [blame] | 62 | * @deferred_probe - entry in deferred_probe_list which is used to retry the |
| 63 | * binding of drivers which were unable to get all the resources needed by |
| 64 | * the device; typically because it depends on another driver getting |
| 65 | * probed first. |
Greg Kroah-Hartman | b402843 | 2009-05-11 14:16:57 -0700 | [diff] [blame] | 66 | * @driver_data - private pointer for driver specific info. Will turn into a |
| 67 | * list soon. |
Greg Kroah-Hartman | fb069a5 | 2008-12-16 12:23:36 -0800 | [diff] [blame] | 68 | * @device - pointer back to the struct class that this structure is |
| 69 | * associated with. |
| 70 | * |
| 71 | * Nothing outside of the driver core should ever touch these fields. |
| 72 | */ |
| 73 | struct device_private { |
Greg Kroah-Hartman | f791b8c | 2008-12-16 12:24:56 -0800 | [diff] [blame] | 74 | struct klist klist_children; |
| 75 | struct klist_node knode_parent; |
Greg Kroah-Hartman | 8940b4f | 2008-12-16 12:25:49 -0800 | [diff] [blame] | 76 | struct klist_node knode_driver; |
Greg Kroah-Hartman | ae1b417 | 2008-12-16 12:26:21 -0800 | [diff] [blame] | 77 | struct klist_node knode_bus; |
Greg Kroah-Hartman | ef8a3fd | 2012-03-08 12:17:22 -0800 | [diff] [blame] | 78 | struct list_head deferred_probe; |
Greg Kroah-Hartman | b402843 | 2009-05-11 14:16:57 -0700 | [diff] [blame] | 79 | void *driver_data; |
Greg Kroah-Hartman | fb069a5 | 2008-12-16 12:23:36 -0800 | [diff] [blame] | 80 | struct device *device; |
| 81 | }; |
Greg Kroah-Hartman | f791b8c | 2008-12-16 12:24:56 -0800 | [diff] [blame] | 82 | #define to_device_private_parent(obj) \ |
| 83 | container_of(obj, struct device_private, knode_parent) |
Greg Kroah-Hartman | 8940b4f | 2008-12-16 12:25:49 -0800 | [diff] [blame] | 84 | #define to_device_private_driver(obj) \ |
| 85 | container_of(obj, struct device_private, knode_driver) |
Greg Kroah-Hartman | ae1b417 | 2008-12-16 12:26:21 -0800 | [diff] [blame] | 86 | #define to_device_private_bus(obj) \ |
| 87 | container_of(obj, struct device_private, knode_bus) |
Greg Kroah-Hartman | fb069a5 | 2008-12-16 12:23:36 -0800 | [diff] [blame] | 88 | |
Greg Kroah-Hartman | b402843 | 2009-05-11 14:16:57 -0700 | [diff] [blame] | 89 | extern int device_private_init(struct device *dev); |
| 90 | |
Greg Kroah-Hartman | c6f7e72 | 2007-11-01 19:41:16 -0700 | [diff] [blame] | 91 | /* initialisation functions */ |
Ben Dooks | a1bdc7a | 2005-10-13 17:54:41 +0100 | [diff] [blame] | 92 | extern int devices_init(void); |
| 93 | extern int buses_init(void); |
| 94 | extern int classes_init(void); |
| 95 | extern int firmware_init(void); |
Michael Holzheu | 4039483 | 2006-05-09 12:53:49 +0200 | [diff] [blame] | 96 | #ifdef CONFIG_SYS_HYPERVISOR |
| 97 | extern int hypervisor_init(void); |
| 98 | #else |
| 99 | static inline int hypervisor_init(void) { return 0; } |
| 100 | #endif |
Ben Dooks | a1bdc7a | 2005-10-13 17:54:41 +0100 | [diff] [blame] | 101 | extern int platform_bus_init(void); |
| 102 | extern int system_bus_init(void); |
Ben Hutchings | 024f784 | 2012-01-10 02:59:49 +0000 | [diff] [blame] | 103 | extern void cpu_dev_init(void); |
Ben Dooks | a1bdc7a | 2005-10-13 17:54:41 +0100 | [diff] [blame] | 104 | |
Greg Kroah-Hartman | 4a3ad20 | 2008-01-24 22:50:12 -0800 | [diff] [blame] | 105 | extern int bus_add_device(struct device *dev); |
Alan Stern | 2023c61 | 2009-07-30 15:27:18 -0400 | [diff] [blame] | 106 | extern void bus_probe_device(struct device *dev); |
Greg Kroah-Hartman | 4a3ad20 | 2008-01-24 22:50:12 -0800 | [diff] [blame] | 107 | extern void bus_remove_device(struct device *dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 108 | |
Greg Kroah-Hartman | 4a3ad20 | 2008-01-24 22:50:12 -0800 | [diff] [blame] | 109 | extern int bus_add_driver(struct device_driver *drv); |
| 110 | extern void bus_remove_driver(struct device_driver *drv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Greg Kroah-Hartman | 4a3ad20 | 2008-01-24 22:50:12 -0800 | [diff] [blame] | 112 | extern void driver_detach(struct device_driver *drv); |
| 113 | extern int driver_probe_device(struct device_driver *drv, struct device *dev); |
Grant Likely | d1c3414 | 2012-03-05 08:47:41 -0700 | [diff] [blame] | 114 | extern void driver_deferred_probe_del(struct device *dev); |
Ming Lei | 49b420a | 2009-01-21 23:27:47 +0800 | [diff] [blame] | 115 | static inline int driver_match_device(struct device_driver *drv, |
| 116 | struct device *dev) |
| 117 | { |
Ming Lei | 5247aec | 2009-03-27 21:50:00 +0800 | [diff] [blame] | 118 | return drv->bus->match ? drv->bus->match(dev, drv) : 1; |
Ming Lei | 49b420a | 2009-01-21 23:27:47 +0800 | [diff] [blame] | 119 | } |
mochel@digitalimplant.org | 07e4a3e | 2005-03-21 10:52:54 -0800 | [diff] [blame] | 120 | |
Greg Kroah-Hartman | aa49b91 | 2006-06-20 13:59:20 -0700 | [diff] [blame] | 121 | extern char *make_class_name(const char *name, struct kobject *kobj); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 122 | |
Adrian Bunk | 2a01345 | 2007-06-18 01:42:54 +0200 | [diff] [blame] | 123 | extern int devres_release_all(struct device *dev); |
Greg Kroah-Hartman | 823bccf | 2007-04-13 13:15:19 -0700 | [diff] [blame] | 124 | |
Kay Sievers | ca22e56 | 2011-12-14 14:29:38 -0800 | [diff] [blame] | 125 | /* /sys/devices directory */ |
Greg Kroah-Hartman | 881c6cf | 2007-11-01 09:29:06 -0600 | [diff] [blame] | 126 | extern struct kset *devices_kset; |
Greg Kroah-Hartman | c63469a | 2007-11-28 12:23:18 -0800 | [diff] [blame] | 127 | |
Randy Dunlap | 92b4214 | 2007-12-31 10:05:43 -0800 | [diff] [blame] | 128 | #if defined(CONFIG_MODULES) && defined(CONFIG_SYSFS) |
Greg Kroah-Hartman | c63469a | 2007-11-28 12:23:18 -0800 | [diff] [blame] | 129 | extern void module_add_driver(struct module *mod, struct device_driver *drv); |
| 130 | extern void module_remove_driver(struct device_driver *drv); |
| 131 | #else |
| 132 | static inline void module_add_driver(struct module *mod, |
| 133 | struct device_driver *drv) { } |
| 134 | static inline void module_remove_driver(struct device_driver *drv) { } |
| 135 | #endif |
Kay Sievers | 2b2af54 | 2009-04-30 15:23:42 +0200 | [diff] [blame] | 136 | |
| 137 | #ifdef CONFIG_DEVTMPFS |
| 138 | extern int devtmpfs_init(void); |
| 139 | #else |
| 140 | static inline int devtmpfs_init(void) { return 0; } |
| 141 | #endif |