usb.h revision 84ebc10294a3d7be4c66f51070b7aedbaa24de9b 
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 char *usb_cache_string(struct usb_device *udev, int index);
39extern int usb_set_configuration(struct usb_device *dev, int configuration);
40extern int usb_choose_configuration(struct usb_device *udev);
41
42static inline unsigned usb_get_max_power(struct usb_device *udev,
43		struct usb_host_config *c)
44{
45	/* SuperSpeed power is in 8 mA units; others are in 2 mA units */
46	unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2);
47
48	return c->desc.bMaxPower * mul;
49}
50
51extern void usb_kick_khubd(struct usb_device *dev);
52extern int usb_match_one_id_intf(struct usb_device *dev,
53				 struct usb_host_interface *intf,
54				 const struct usb_device_id *id);
55extern int usb_match_device(struct usb_device *dev,
56			    const struct usb_device_id *id);
57extern void usb_forced_unbind_intf(struct usb_interface *intf);
58extern void usb_rebind_intf(struct usb_interface *intf);
59
60extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
61		struct dev_state *owner);
62extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
63		struct dev_state *owner);
64extern void usb_hub_release_all_ports(struct usb_device *hdev,
65		struct dev_state *owner);
66extern bool usb_device_is_owned(struct usb_device *udev);
67
68extern int  usb_hub_init(void);
69extern void usb_hub_cleanup(void);
70extern int usb_major_init(void);
71extern void usb_major_cleanup(void);
72
73#ifdef	CONFIG_PM
74
75extern int usb_suspend(struct device *dev, pm_message_t msg);
76extern int usb_resume(struct device *dev, pm_message_t msg);
77extern int usb_resume_complete(struct device *dev);
78
79extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
80extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
81
82#else
83
84static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
85{
86	return 0;
87}
88
89static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
90{
91	return 0;
92}
93
94#endif
95
96#ifdef CONFIG_PM_RUNTIME
97
98extern void usb_autosuspend_device(struct usb_device *udev);
99extern int usb_autoresume_device(struct usb_device *udev);
100extern int usb_remote_wakeup(struct usb_device *dev);
101extern int usb_runtime_suspend(struct device *dev);
102extern int usb_runtime_resume(struct device *dev);
103extern int usb_runtime_idle(struct device *dev);
104extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
105
106#else
107
108#define usb_autosuspend_device(udev)		do {} while (0)
109static inline int usb_autoresume_device(struct usb_device *udev)
110{
111	return 0;
112}
113
114static inline int usb_remote_wakeup(struct usb_device *udev)
115{
116	return 0;
117}
118
119static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
120{
121	return 0;
122}
123#endif
124
125extern struct bus_type usb_bus_type;
126extern struct device_type usb_device_type;
127extern struct device_type usb_if_device_type;
128extern struct device_type usb_ep_device_type;
129extern struct device_type usb_port_device_type;
130extern struct usb_device_driver usb_generic_driver;
131
132static inline int is_usb_device(const struct device *dev)
133{
134	return dev->type == &usb_device_type;
135}
136
137static inline int is_usb_interface(const struct device *dev)
138{
139	return dev->type == &usb_if_device_type;
140}
141
142static inline int is_usb_endpoint(const struct device *dev)
143{
144	return dev->type == &usb_ep_device_type;
145}
146
147static inline int is_usb_port(const struct device *dev)
148{
149	return dev->type == &usb_port_device_type;
150}
151
152/* Do the same for device drivers and interface drivers. */
153
154static inline int is_usb_device_driver(struct device_driver *drv)
155{
156	return container_of(drv, struct usbdrv_wrap, driver)->
157			for_devices;
158}
159
160/* for labeling diagnostics */
161extern const char *usbcore_name;
162
163/* sysfs stuff */
164extern const struct attribute_group *usb_device_groups[];
165extern const struct attribute_group *usb_interface_groups[];
166
167/* usbfs stuff */
168extern struct mutex usbfs_mutex;
169extern struct usb_driver usbfs_driver;
170extern const struct file_operations usbfs_devices_fops;
171extern const struct file_operations usbdev_file_operations;
172extern void usbfs_conn_disc_event(void);
173
174extern int usb_devio_init(void);
175extern void usb_devio_cleanup(void);
176
177/* internal notify stuff */
178extern void usb_notify_add_device(struct usb_device *udev);
179extern void usb_notify_remove_device(struct usb_device *udev);
180extern void usb_notify_add_bus(struct usb_bus *ubus);
181extern void usb_notify_remove_bus(struct usb_bus *ubus);
182extern enum usb_port_connect_type
183	usb_get_hub_port_connect_type(struct usb_device *hdev, int port1);
184extern void usb_set_hub_port_connect_type(struct usb_device *hdev, int port1,
185	enum usb_port_connect_type type);
186extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
187		struct usb_hub_descriptor *desc);
188
189#ifdef CONFIG_ACPI
190extern int usb_acpi_register(void);
191extern void usb_acpi_unregister(void);
192extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
193	int port1);
194#else
195static inline int usb_acpi_register(void) { return 0; };
196static inline void usb_acpi_unregister(void) { };
197#endif
198