tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 int usb_get_bos_descriptor(struct usb_device *dev);
32extern void usb_release_bos_descriptor(struct usb_device *dev);
33extern char *usb_cache_string(struct usb_device *udev, int index);
34extern int usb_set_configuration(struct usb_device *dev, int configuration);
35extern int usb_choose_configuration(struct usb_device *udev);
36
37extern void usb_kick_khubd(struct usb_device *dev);
38extern int usb_match_device(struct usb_device *dev,
39 const struct usb_device_id *id);
40extern void usb_forced_unbind_intf(struct usb_interface *intf);
41extern void usb_rebind_intf(struct usb_interface *intf);
42
43extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
44 void *owner);
45extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
46 void *owner);
47extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner);
48extern bool usb_device_is_owned(struct usb_device *udev);
49
50extern int usb_hub_init(void);
51extern void usb_hub_cleanup(void);
52extern int usb_major_init(void);
53extern void usb_major_cleanup(void);
54
55#ifdef CONFIG_PM
56
57extern int usb_suspend(struct device *dev, pm_message_t msg);
58extern int usb_resume(struct device *dev, pm_message_t msg);
59
60extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
61extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
62
63#else
64
65static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
66{
67 return 0;
68}
69
70static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
71{
72 return 0;
73}
74
75#endif
76
77#ifdef CONFIG_USB_SUSPEND
78
79extern void usb_autosuspend_device(struct usb_device *udev);
80extern int usb_autoresume_device(struct usb_device *udev);
81extern int usb_remote_wakeup(struct usb_device *dev);
82extern int usb_runtime_suspend(struct device *dev);
83extern int usb_runtime_resume(struct device *dev);
84extern int usb_runtime_idle(struct device *dev);
85extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
86
87#else
88
89#define usb_autosuspend_device(udev) do {} while (0)
90static inline int usb_autoresume_device(struct usb_device *udev)
91{
92 return 0;
93}
94
95static inline int usb_remote_wakeup(struct usb_device *udev)
96{
97 return 0;
98}
99
100static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
101{
102 return 0;
103}
104#endif
105
106extern struct bus_type usb_bus_type;
107extern struct device_type usb_device_type;
108extern struct device_type usb_if_device_type;
109extern struct device_type usb_ep_device_type;
110extern struct usb_device_driver usb_generic_driver;
111
112static inline int is_usb_device(const struct device *dev)
113{
114 return dev->type == &usb_device_type;
115}
116
117static inline int is_usb_interface(const struct device *dev)
118{
119 return dev->type == &usb_if_device_type;
120}
121
122static inline int is_usb_endpoint(const struct device *dev)
123{
124 return dev->type == &usb_ep_device_type;
125}
126
127/* Do the same for device drivers and interface drivers. */
128
129static inline int is_usb_device_driver(struct device_driver *drv)
130{
131 return container_of(drv, struct usbdrv_wrap, driver)->
132 for_devices;
133}
134
135/* translate USB error codes to codes user space understands */
136static inline int usb_translate_errors(int error_code)
137{
138 switch (error_code) {
139 case 0:
140 case -ENOMEM:
141 case -ENODEV:
142 return error_code;
143 default:
144 return -EIO;
145 }
146}
147
148
149/* for labeling diagnostics */
150extern const char *usbcore_name;
151
152/* sysfs stuff */
153extern const struct attribute_group *usb_device_groups[];
154extern const struct attribute_group *usb_interface_groups[];
155
156/* usbfs stuff */
157extern struct mutex usbfs_mutex;
158extern struct usb_driver usbfs_driver;
159extern const struct file_operations usbfs_devices_fops;
160extern const struct file_operations usbdev_file_operations;
161extern void usbfs_conn_disc_event(void);
162
163extern int usb_devio_init(void);
164extern void usb_devio_cleanup(void);
165
166/* internal notify stuff */
167extern void usb_notify_add_device(struct usb_device *udev);
168extern void usb_notify_remove_device(struct usb_device *udev);
169extern void usb_notify_add_bus(struct usb_bus *ubus);
170extern void usb_notify_remove_bus(struct usb_bus *ubus);
171