usb.h revision 9df89d85b407690afa46ddfbccc80bec6869971d 
1#include <linux/pm.h>
2#include <linux/acpi.h>
3
4struct usb_hub_descriptor;
5struct dev_state;
6
7/* Functions local to drivers/usb/core/ */
8
9extern int usb_create_sysfs_dev_files(struct usb_device *dev);
10extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
11extern void usb_create_sysfs_intf_files(struct usb_interface *intf);
12extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
13extern int usb_create_ep_devs(struct device *parent,
14				struct usb_host_endpoint *endpoint,
15				struct usb_device *udev);
16extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
17
18extern void usb_enable_endpoint(struct usb_device *dev,
19		struct usb_host_endpoint *ep, bool reset_toggle);
20extern void usb_enable_interface(struct usb_device *dev,
21		struct usb_interface *intf, bool reset_toggles);
22extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
23		bool reset_hardware);
24extern void usb_disable_interface(struct usb_device *dev,
25		struct usb_interface *intf, bool reset_hardware);
26extern void usb_release_interface_cache(struct kref *ref);
27extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
28extern int usb_deauthorize_device(struct usb_device *);
29extern int usb_authorize_device(struct usb_device *);
30extern void usb_detect_quirks(struct usb_device *udev);
31extern void usb_detect_interface_quirks(struct usb_device *udev);
32extern int usb_remove_device(struct usb_device *udev);
33
34extern int usb_get_device_descriptor(struct usb_device *dev,
35		unsigned int size);
36extern int usb_get_bos_descriptor(struct usb_device *dev);
37extern void usb_release_bos_descriptor(struct usb_device *dev);
38extern int usb_device_supports_lpm(struct usb_device *udev);
39extern char *usb_cache_string(struct usb_device *udev, int index);
40extern int usb_set_configuration(struct usb_device *dev, int configuration);
41extern int usb_choose_configuration(struct usb_device *udev);
42
43static inline unsigned usb_get_max_power(struct usb_device *udev,
44		struct usb_host_config *c)
45{
46	/* SuperSpeed power is in 8 mA units; others are in 2 mA units */
47	unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2);
48
49	return c->desc.bMaxPower * mul;
50}
51
52extern void usb_kick_khubd(struct usb_device *dev);
53extern int usb_match_one_id_intf(struct usb_device *dev,
54				 struct usb_host_interface *intf,
55				 const struct usb_device_id *id);
56extern int usb_match_device(struct usb_device *dev,
57			    const struct usb_device_id *id);
58extern void usb_forced_unbind_intf(struct usb_interface *intf);
59extern void usb_rebind_intf(struct usb_interface *intf);
60
61extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
62		struct dev_state *owner);
63extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
64		struct dev_state *owner);
65extern void usb_hub_release_all_ports(struct usb_device *hdev,
66		struct dev_state *owner);
67extern bool usb_device_is_owned(struct usb_device *udev);
68
69extern int  usb_hub_init(void);
70extern void usb_hub_cleanup(void);
71extern int usb_major_init(void);
72extern void usb_major_cleanup(void);
73
74#ifdef	CONFIG_PM
75
76extern int usb_suspend(struct device *dev, pm_message_t msg);
77extern int usb_resume(struct device *dev, pm_message_t msg);
78extern int usb_resume_complete(struct device *dev);
79
80extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
81extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
82
83#else
84
85static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
86{
87	return 0;
88}
89
90static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
91{
92	return 0;
93}
94
95#endif
96
97#ifdef CONFIG_PM_RUNTIME
98
99extern void usb_autosuspend_device(struct usb_device *udev);
100extern int usb_autoresume_device(struct usb_device *udev);
101extern int usb_remote_wakeup(struct usb_device *dev);
102extern int usb_runtime_suspend(struct device *dev);
103extern int usb_runtime_resume(struct device *dev);
104extern int usb_runtime_idle(struct device *dev);
105extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
106
107#else
108
109#define usb_autosuspend_device(udev)		do {} while (0)
110static inline int usb_autoresume_device(struct usb_device *udev)
111{
112	return 0;
113}
114
115static inline int usb_remote_wakeup(struct usb_device *udev)
116{
117	return 0;
118}
119
120static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
121{
122	return 0;
123}
124#endif
125
126extern struct bus_type usb_bus_type;
127extern struct device_type usb_device_type;
128extern struct device_type usb_if_device_type;
129extern struct device_type usb_ep_device_type;
130extern struct device_type usb_port_device_type;
131extern struct usb_device_driver usb_generic_driver;
132
133static inline int is_usb_device(const struct device *dev)
134{
135	return dev->type == &usb_device_type;
136}
137
138static inline int is_usb_interface(const struct device *dev)
139{
140	return dev->type == &usb_if_device_type;
141}
142
143static inline int is_usb_endpoint(const struct device *dev)
144{
145	return dev->type == &usb_ep_device_type;
146}
147
148static inline int is_usb_port(const struct device *dev)
149{
150	return dev->type == &usb_port_device_type;
151}
152
153/* Do the same for device drivers and interface drivers. */
154
155static inline int is_usb_device_driver(struct device_driver *drv)
156{
157	return container_of(drv, struct usbdrv_wrap, driver)->
158			for_devices;
159}
160
161/* for labeling diagnostics */
162extern const char *usbcore_name;
163
164/* sysfs stuff */
165extern const struct attribute_group *usb_device_groups[];
166extern const struct attribute_group *usb_interface_groups[];
167
168/* usbfs stuff */
169extern struct mutex usbfs_mutex;
170extern struct usb_driver usbfs_driver;
171extern const struct file_operations usbfs_devices_fops;
172extern const struct file_operations usbdev_file_operations;
173extern void usbfs_conn_disc_event(void);
174
175extern int usb_devio_init(void);
176extern void usb_devio_cleanup(void);
177
178/* internal notify stuff */
179extern void usb_notify_add_device(struct usb_device *udev);
180extern void usb_notify_remove_device(struct usb_device *udev);
181extern void usb_notify_add_bus(struct usb_bus *ubus);
182extern void usb_notify_remove_bus(struct usb_bus *ubus);
183extern enum usb_port_connect_type
184	usb_get_hub_port_connect_type(struct usb_device *hdev, int port1);
185extern void usb_set_hub_port_connect_type(struct usb_device *hdev, int port1,
186	enum usb_port_connect_type type);
187extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
188		struct usb_hub_descriptor *desc);
189
190#ifdef CONFIG_ACPI
191extern int usb_acpi_register(void);
192extern void usb_acpi_unregister(void);
193extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
194	int port1);
195#else
196static inline int usb_acpi_register(void) { return 0; };
197static inline void usb_acpi_unregister(void) { };
198#endif
199