usb.h revision 7cbe5dca399a50ce8aa74314b1d276e2fb904e1b 
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_claim_port(struct usb_device *hdev, unsigned port,
41		void *owner);
42extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
43		void *owner);
44extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner);
45extern bool usb_device_is_owned(struct usb_device *udev);
46
47extern int  usb_hub_init(void);
48extern void usb_hub_cleanup(void);
49extern int usb_major_init(void);
50extern void usb_major_cleanup(void);
51
52#ifdef	CONFIG_PM
53
54extern int usb_suspend(struct device *dev, pm_message_t msg);
55extern int usb_resume(struct device *dev, pm_message_t msg);
56
57extern void usb_autosuspend_work(struct work_struct *work);
58extern void usb_autoresume_work(struct work_struct *work);
59extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
60extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
61extern int usb_external_suspend_device(struct usb_device *udev,
62		pm_message_t msg);
63extern int usb_external_resume_device(struct usb_device *udev,
64		pm_message_t msg);
65
66static inline void usb_pm_lock(struct usb_device *udev)
67{
68	mutex_lock_nested(&udev->pm_mutex, udev->level);
69}
70
71static inline void usb_pm_unlock(struct usb_device *udev)
72{
73	mutex_unlock(&udev->pm_mutex);
74}
75
76#else
77
78static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
79{
80	return 0;
81}
82
83static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
84{
85	return 0;
86}
87
88static inline void usb_pm_lock(struct usb_device *udev) {}
89static inline void usb_pm_unlock(struct usb_device *udev) {}
90
91#endif
92
93#ifdef CONFIG_USB_SUSPEND
94
95extern void usb_autosuspend_device(struct usb_device *udev);
96extern void usb_try_autosuspend_device(struct usb_device *udev);
97extern int usb_autoresume_device(struct usb_device *udev);
98
99#else
100
101#define usb_autosuspend_device(udev)		do {} while (0)
102#define usb_try_autosuspend_device(udev)	do {} while (0)
103static inline int usb_autoresume_device(struct usb_device *udev)
104{
105	return 0;
106}
107
108#endif
109
110extern struct workqueue_struct *ksuspend_usb_wq;
111extern struct bus_type usb_bus_type;
112extern struct device_type usb_device_type;
113extern struct device_type usb_if_device_type;
114extern struct device_type usb_ep_device_type;
115extern struct usb_device_driver usb_generic_driver;
116
117static inline int is_usb_device(const struct device *dev)
118{
119	return dev->type == &usb_device_type;
120}
121
122static inline int is_usb_interface(const struct device *dev)
123{
124	return dev->type == &usb_if_device_type;
125}
126
127static inline int is_usb_endpoint(const struct device *dev)
128{
129	return dev->type == &usb_ep_device_type;
130}
131
132/* Do the same for device drivers and interface drivers. */
133
134static inline int is_usb_device_driver(struct device_driver *drv)
135{
136	return container_of(drv, struct usbdrv_wrap, driver)->
137			for_devices;
138}
139
140/* Interfaces and their "power state" are owned by usbcore */
141
142static inline void mark_active(struct usb_interface *f)
143{
144	f->is_active = 1;
145}
146
147static inline void mark_quiesced(struct usb_interface *f)
148{
149	f->is_active = 0;
150}
151
152static inline int is_active(const struct usb_interface *f)
153{
154	return f->is_active;
155}
156
157
158/* for labeling diagnostics */
159extern const char *usbcore_name;
160
161/* sysfs stuff */
162extern const struct attribute_group *usb_device_groups[];
163extern const struct attribute_group *usb_interface_groups[];
164
165/* usbfs stuff */
166extern struct mutex usbfs_mutex;
167extern struct usb_driver usbfs_driver;
168extern const struct file_operations usbfs_devices_fops;
169extern const struct file_operations usbdev_file_operations;
170extern void usbfs_conn_disc_event(void);
171
172extern int usb_devio_init(void);
173extern void usb_devio_cleanup(void);
174
175/* internal notify stuff */
176extern void usb_notify_add_device(struct usb_device *udev);
177extern void usb_notify_remove_device(struct usb_device *udev);
178extern void usb_notify_add_bus(struct usb_bus *ubus);
179extern void usb_notify_remove_bus(struct usb_bus *ubus);
180
181