aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb/core/usb.h
blob: 1c4a68499dce53cd060b27deb0d05c6658a01a04 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
/* Functions local to drivers/usb/core/ */

extern void usb_create_sysfs_dev_files (struct usb_device *dev);
extern void usb_remove_sysfs_dev_files (struct usb_device *dev);
extern void usb_create_sysfs_intf_files (struct usb_interface *intf);
extern void usb_remove_sysfs_intf_files (struct usb_interface *intf);

extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr);
extern void usb_disable_interface (struct usb_device *dev,
		struct usb_interface *intf);
extern void usb_release_interface_cache(struct kref *ref);
extern void usb_disable_device (struct usb_device *dev, int skip_ep0);

extern int usb_get_device_descriptor(struct usb_device *dev,
		unsigned int size);
extern char *usb_cache_string(struct usb_device *udev, int index);
extern int usb_set_configuration(struct usb_device *dev, int configuration);

extern void usb_lock_all_devices(void);
extern void usb_unlock_all_devices(void);

extern void usb_kick_khubd(struct usb_device *dev);
extern void usb_suspend_root_hub(struct usb_device *hdev);
extern void usb_resume_root_hub(struct usb_device *dev);

extern int  usb_hub_init(void);
extern void usb_hub_cleanup(void);
extern int usb_major_init(void);
extern void usb_major_cleanup(void);
extern int usb_host_init(void);
extern void usb_host_cleanup(void);

extern int usb_suspend_device(struct usb_device *dev);
extern int usb_resume_device(struct usb_device *dev);


/* Interfaces and their "power state" are owned by usbcore */

static inline void mark_active(struct usb_interface *f)
{
	f->dev.power.power_state.event = PM_EVENT_ON;
}

static inline void mark_quiesced(struct usb_interface *f)
{
	f->dev.power.power_state.event = PM_EVENT_FREEZE;
}

static inline int is_active(struct usb_interface *f)
{
	return f->dev.power.power_state.event == PM_EVENT_ON;
}


/* for labeling diagnostics */
extern const char *usbcore_name;

/* usbfs stuff */
extern struct usb_driver usbfs_driver;
extern struct file_operations usbfs_devices_fops;
extern struct file_operations usbfs_device_file_operations;
extern void usbfs_conn_disc_event(void);

extern int usbdev_init(void);
extern void usbdev_cleanup(void);

struct dev_state {
	struct list_head list;      /* state list */
	struct usb_device *dev;
	struct file *file;
	spinlock_t lock;            /* protects the async urb lists */
	struct list_head async_pending;
	struct list_head async_completed;
	wait_queue_head_t wait;     /* wake up if a request completed */
	unsigned int discsignr;
	pid_t disc_pid;
	uid_t disc_uid, disc_euid;
	void __user *disccontext;
	unsigned long ifclaimed;
};

/* internal notify stuff */
extern void usb_notify_add_device(struct usb_device *udev);
extern void usb_notify_remove_device(struct usb_device *udev);
extern void usb_notify_add_bus(struct usb_bus *ubus);
extern void usb_notify_remove_bus(struct usb_bus *ubus);