1/* Functions local to drivers/usb/core/ */
2
3extern int usb_create_sysfs_dev_files (struct usb_device *dev);
4extern void usb_remove_sysfs_dev_files (struct usb_device *dev);
5extern int usb_create_sysfs_intf_files (struct usb_interface *intf);
6extern void usb_remove_sysfs_intf_files (struct usb_interface *intf);
7extern int usb_create_ep_files(struct device *parent, struct usb_host_endpoint *endpoint,
8				struct usb_device *udev);
9extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint);
10
11extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr);
12extern void usb_disable_interface (struct usb_device *dev,
13		struct usb_interface *intf);
14extern void usb_release_interface_cache(struct kref *ref);
15extern void usb_disable_device (struct usb_device *dev, int skip_ep0);
16extern void usb_detect_quirks(struct usb_device *udev);
17
18extern int usb_get_device_descriptor(struct usb_device *dev,
19		unsigned int size);
20extern char *usb_cache_string(struct usb_device *udev, int index);
21extern int usb_set_configuration(struct usb_device *dev, int configuration);
22
23extern void usb_kick_khubd(struct usb_device *dev);
24extern int usb_match_device(struct usb_device *dev,
25			    const struct usb_device_id *id);
26
27extern int  usb_hub_init(void);
28extern void usb_hub_cleanup(void);
29extern int usb_major_init(void);
30extern void usb_major_cleanup(void);
31extern int usb_host_init(void);
32extern void usb_host_cleanup(void);
33
34#ifdef	CONFIG_PM
35
36extern void usb_autosuspend_work(struct work_struct *work);
37extern int usb_port_suspend(struct usb_device *dev);
38extern int usb_port_resume(struct usb_device *dev);
39extern int usb_external_suspend_device(struct usb_device *udev,
40		pm_message_t msg);
41extern int usb_external_resume_device(struct usb_device *udev);
42
43static inline void usb_pm_lock(struct usb_device *udev)
44{
45	mutex_lock_nested(&udev->pm_mutex, udev->level);
46}
47
48static inline void usb_pm_unlock(struct usb_device *udev)
49{
50	mutex_unlock(&udev->pm_mutex);
51}
52
53#else
54
55#define usb_port_suspend(dev)		0
56#define usb_port_resume(dev)		0
57static inline void usb_pm_lock(struct usb_device *udev) {}
58static inline void usb_pm_unlock(struct usb_device *udev) {}
59
60#endif
61
62#ifdef CONFIG_USB_SUSPEND
63
64extern void usb_autosuspend_device(struct usb_device *udev);
65extern void usb_try_autosuspend_device(struct usb_device *udev);
66extern int usb_autoresume_device(struct usb_device *udev);
67
68#else
69
70#define usb_autosuspend_device(udev)		do {} while (0)
71#define usb_try_autosuspend_device(udev)	do {} while (0)
72static inline int usb_autoresume_device(struct usb_device *udev)
73{
74	return 0;
75}
76
77#endif
78
79extern struct workqueue_struct *ksuspend_usb_wq;
80extern struct bus_type usb_bus_type;
81extern struct device_type usb_device_type;
82extern struct device_type usb_if_device_type;
83extern struct usb_device_driver usb_generic_driver;
84
85static inline int is_usb_device(const struct device *dev)
86{
87	return dev->type == &usb_device_type;
88}
89
90/* Do the same for device drivers and interface drivers. */
91
92static inline int is_usb_device_driver(struct device_driver *drv)
93{
94	return container_of(drv, struct usbdrv_wrap, driver)->
95			for_devices;
96}
97
98/* Interfaces and their "power state" are owned by usbcore */
99
100static inline void mark_active(struct usb_interface *f)
101{
102	f->is_active = 1;
103}
104
105static inline void mark_quiesced(struct usb_interface *f)
106{
107	f->is_active = 0;
108}
109
110static inline int is_active(const struct usb_interface *f)
111{
112	return f->is_active;
113}
114
115
116/* for labeling diagnostics */
117extern const char *usbcore_name;
118
119/* usbfs stuff */
120extern struct mutex usbfs_mutex;
121extern struct usb_driver usbfs_driver;
122extern const struct file_operations usbfs_devices_fops;
123extern const struct file_operations usbdev_file_operations;
124extern void usbfs_conn_disc_event(void);
125
126extern int usb_devio_init(void);
127extern void usb_devio_cleanup(void);
128
129struct dev_state {
130	struct list_head list;      /* state list */
131	struct usb_device *dev;
132	struct file *file;
133	spinlock_t lock;            /* protects the async urb lists */
134	struct list_head async_pending;
135	struct list_head async_completed;
136	wait_queue_head_t wait;     /* wake up if a request completed */
137	unsigned int discsignr;
138	struct pid *disc_pid;
139	uid_t disc_uid, disc_euid;
140	void __user *disccontext;
141	unsigned long ifclaimed;
142	u32 secid;
143};
144
145/* internal notify stuff */
146extern void usb_notify_add_device(struct usb_device *udev);
147extern void usb_notify_remove_device(struct usb_device *udev);
148extern void usb_notify_add_bus(struct usb_bus *ubus);
149extern void usb_notify_remove_bus(struct usb_bus *ubus);
150