usb.h revision ddeac4e75f2527a340f9dc655bde49bb2429b39b 
1#include <linux/pm.h>
2
3/* Functions local to drivers/usb/core/ */
4
5extern int usb_create_sysfs_dev_files(struct usb_device *dev);
6extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
7extern int usb_create_sysfs_intf_files(struct usb_interface *intf);
8extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
9extern int usb_create_ep_devs(struct device *parent,
10				struct usb_host_endpoint *endpoint,
11				struct usb_device *udev);
12extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
13
14extern void usb_enable_endpoint(struct usb_device *dev,
15		struct usb_host_endpoint *ep, bool reset_toggle);
16extern void usb_enable_interface(struct usb_device *dev,
17		struct usb_interface *intf, bool reset_toggles);
18extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
19		bool reset_hardware);
20extern void usb_disable_interface(struct usb_device *dev,
21		struct usb_interface *intf, bool reset_hardware);
22extern void usb_release_interface_cache(struct kref *ref);
23extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
24extern int usb_deauthorize_device(struct usb_device *);
25extern int usb_authorize_device(struct usb_device *);
26extern void usb_detect_quirks(struct usb_device *udev);
27
28extern int usb_get_device_descriptor(struct usb_device *dev,
29		unsigned int size);
30extern char *usb_cache_string(struct usb_device *udev, int index);
31extern int usb_set_configuration(struct usb_device *dev, int configuration);
32extern int usb_choose_configuration(struct usb_device *udev);
33
34extern void usb_kick_khubd(struct usb_device *dev);
35extern int usb_match_device(struct usb_device *dev,
36			    const struct usb_device_id *id);
37extern void usb_forced_unbind_intf(struct usb_interface *intf);
38extern void usb_rebind_intf(struct usb_interface *intf);
39
40extern int  usb_hub_init(void);
41extern void usb_hub_cleanup(void);
42extern int usb_major_init(void);
43extern void usb_major_cleanup(void);
44extern int usb_host_init(void);
45extern void usb_host_cleanup(void);
46
47#ifdef	CONFIG_PM
48
49extern int usb_suspend(struct device *dev, pm_message_t msg);
50extern int usb_resume(struct device *dev, pm_message_t msg);
51
52extern void usb_autosuspend_work(struct work_struct *work);
53extern void usb_autoresume_work(struct work_struct *work);
54extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
55extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
56extern int usb_external_suspend_device(struct usb_device *udev,
57		pm_message_t msg);
58extern int usb_external_resume_device(struct usb_device *udev,
59		pm_message_t msg);
60
61static inline void usb_pm_lock(struct usb_device *udev)
62{
63	mutex_lock_nested(&udev->pm_mutex, udev->level);
64}
65
66static inline void usb_pm_unlock(struct usb_device *udev)
67{
68	mutex_unlock(&udev->pm_mutex);
69}
70
71#else
72
73static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
74{
75	return 0;
76}
77
78static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
79{
80	return 0;
81}
82
83static inline void usb_pm_lock(struct usb_device *udev) {}
84static inline void usb_pm_unlock(struct usb_device *udev) {}
85
86#endif
87
88#ifdef CONFIG_USB_SUSPEND
89
90extern void usb_autosuspend_device(struct usb_device *udev);
91extern void usb_try_autosuspend_device(struct usb_device *udev);
92extern int usb_autoresume_device(struct usb_device *udev);
93
94#else
95
96#define usb_autosuspend_device(udev)		do {} while (0)
97#define usb_try_autosuspend_device(udev)	do {} while (0)
98static inline int usb_autoresume_device(struct usb_device *udev)
99{
100	return 0;
101}
102
103#endif
104
105extern struct workqueue_struct *ksuspend_usb_wq;
106extern struct bus_type usb_bus_type;
107extern struct device_type usb_device_type;
108extern struct device_type usb_if_device_type;
109extern struct usb_device_driver usb_generic_driver;
110
111static inline int is_usb_device(const struct device *dev)
112{
113	return dev->type == &usb_device_type;
114}
115
116/* Do the same for device drivers and interface drivers. */
117
118static inline int is_usb_device_driver(struct device_driver *drv)
119{
120	return container_of(drv, struct usbdrv_wrap, driver)->
121			for_devices;
122}
123
124/* Interfaces and their "power state" are owned by usbcore */
125
126static inline void mark_active(struct usb_interface *f)
127{
128	f->is_active = 1;
129}
130
131static inline void mark_quiesced(struct usb_interface *f)
132{
133	f->is_active = 0;
134}
135
136static inline int is_active(const struct usb_interface *f)
137{
138	return f->is_active;
139}
140
141
142/* for labeling diagnostics */
143extern const char *usbcore_name;
144
145/* sysfs stuff */
146extern struct attribute_group *usb_device_groups[];
147extern struct attribute_group *usb_interface_groups[];
148
149/* usbfs stuff */
150extern struct mutex usbfs_mutex;
151extern struct usb_driver usbfs_driver;
152extern const struct file_operations usbfs_devices_fops;
153extern const struct file_operations usbdev_file_operations;
154extern void usbfs_conn_disc_event(void);
155extern void usb_fs_classdev_common_remove(struct usb_device *udev);
156
157extern int usb_devio_init(void);
158extern void usb_devio_cleanup(void);
159
160/* internal notify stuff */
161extern void usb_notify_add_device(struct usb_device *udev);
162extern void usb_notify_remove_device(struct usb_device *udev);
163extern void usb_notify_add_bus(struct usb_bus *ubus);
164extern void usb_notify_remove_bus(struct usb_bus *ubus);
165
166