usb.h revision 643de6240b0b59c420ad71dfeeb3125a3607af92 
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 void 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);
27extern int usb_remove_device(struct usb_device *udev);
28
29extern int usb_get_device_descriptor(struct usb_device *dev,
30		unsigned int size);
31extern char *usb_cache_string(struct usb_device *udev, int index);
32extern int usb_set_configuration(struct usb_device *dev, int configuration);
33extern int usb_choose_configuration(struct usb_device *udev);
34
35extern void usb_kick_khubd(struct usb_device *dev);
36extern int usb_match_device(struct usb_device *dev,
37			    const struct usb_device_id *id);
38extern void usb_forced_unbind_intf(struct usb_interface *intf);
39extern void usb_rebind_intf(struct usb_interface *intf);
40
41extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
42		void *owner);
43extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
44		void *owner);
45extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner);
46extern bool usb_device_is_owned(struct usb_device *udev);
47
48extern int  usb_hub_init(void);
49extern void usb_hub_cleanup(void);
50extern int usb_major_init(void);
51extern void usb_major_cleanup(void);
52
53#ifdef	CONFIG_PM
54
55extern int usb_suspend(struct device *dev, pm_message_t msg);
56extern int usb_resume(struct device *dev, pm_message_t msg);
57
58extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
59extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
60
61#else
62
63static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
64{
65	return 0;
66}
67
68static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
69{
70	return 0;
71}
72
73#endif
74
75#ifdef CONFIG_USB_SUSPEND
76
77extern void usb_autosuspend_device(struct usb_device *udev);
78extern int usb_autoresume_device(struct usb_device *udev);
79extern int usb_remote_wakeup(struct usb_device *dev);
80extern int usb_runtime_suspend(struct device *dev);
81extern int usb_runtime_resume(struct device *dev);
82extern int usb_runtime_idle(struct device *dev);
83
84#else
85
86#define usb_autosuspend_device(udev)		do {} while (0)
87static inline int usb_autoresume_device(struct usb_device *udev)
88{
89	return 0;
90}
91
92static inline int usb_remote_wakeup(struct usb_device *udev)
93{
94	return 0;
95}
96
97#endif
98
99extern struct bus_type usb_bus_type;
100extern struct device_type usb_device_type;
101extern struct device_type usb_if_device_type;
102extern struct device_type usb_ep_device_type;
103extern struct usb_device_driver usb_generic_driver;
104
105static inline int is_usb_device(const struct device *dev)
106{
107	return dev->type == &usb_device_type;
108}
109
110static inline int is_usb_interface(const struct device *dev)
111{
112	return dev->type == &usb_if_device_type;
113}
114
115static inline int is_usb_endpoint(const struct device *dev)
116{
117	return dev->type == &usb_ep_device_type;
118}
119
120/* Do the same for device drivers and interface drivers. */
121
122static inline int is_usb_device_driver(struct device_driver *drv)
123{
124	return container_of(drv, struct usbdrv_wrap, driver)->
125			for_devices;
126}
127
128/* translate USB error codes to codes user space understands */
129static inline int usb_translate_errors(int error_code)
130{
131	switch (error_code) {
132	case 0:
133	case -ENOMEM:
134	case -ENODEV:
135		return error_code;
136	default:
137		return -EIO;
138	}
139}
140
141
142/* for labeling diagnostics */
143extern const char *usbcore_name;
144
145/* sysfs stuff */
146extern const struct attribute_group *usb_device_groups[];
147extern const 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);
155
156extern int usb_devio_init(void);
157extern void usb_devio_cleanup(void);
158
159/* internal notify stuff */
160extern void usb_notify_add_device(struct usb_device *udev);
161extern void usb_notify_remove_device(struct usb_device *udev);
162extern void usb_notify_add_bus(struct usb_bus *ubus);
163extern void usb_notify_remove_bus(struct usb_bus *ubus);
164
165