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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
1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Released under the GPLv2 only.
4 */
5
6#include <linux/pm.h>
7#include <linux/acpi.h>
8
9struct usb_hub_descriptor;
10struct usb_dev_state;
11
12/* Functions local to drivers/usb/core/ */
13
14extern int usb_create_sysfs_dev_files(struct usb_device *dev);
15extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
16extern void usb_create_sysfs_intf_files(struct usb_interface *intf);
17extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
18extern int usb_create_ep_devs(struct device *parent,
19 struct usb_host_endpoint *endpoint,
20 struct usb_device *udev);
21extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
22
23extern void usb_enable_endpoint(struct usb_device *dev,
24 struct usb_host_endpoint *ep, bool reset_toggle);
25extern void usb_enable_interface(struct usb_device *dev,
26 struct usb_interface *intf, bool reset_toggles);
27extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
28 bool reset_hardware);
29extern void usb_disable_interface(struct usb_device *dev,
30 struct usb_interface *intf, bool reset_hardware);
31extern void usb_release_interface_cache(struct kref *ref);
32extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
33extern int usb_deauthorize_device(struct usb_device *);
34extern int usb_authorize_device(struct usb_device *);
35extern void usb_deauthorize_interface(struct usb_interface *);
36extern void usb_authorize_interface(struct usb_interface *);
37extern void usb_detect_quirks(struct usb_device *udev);
38extern void usb_detect_interface_quirks(struct usb_device *udev);
39extern void usb_release_quirk_list(void);
40extern bool usb_endpoint_is_ignored(struct usb_device *udev,
41 struct usb_host_interface *intf,
42 struct usb_endpoint_descriptor *epd);
43extern int usb_remove_device(struct usb_device *udev);
44
45extern int usb_get_device_descriptor(struct usb_device *dev,
46 unsigned int size);
47extern int usb_set_isoch_delay(struct usb_device *dev);
48extern int usb_get_bos_descriptor(struct usb_device *dev);
49extern void usb_release_bos_descriptor(struct usb_device *dev);
50extern int usb_set_configuration(struct usb_device *dev, int configuration);
51extern int usb_choose_configuration(struct usb_device *udev);
52extern int usb_generic_driver_probe(struct usb_device *udev);
53extern void usb_generic_driver_disconnect(struct usb_device *udev);
54extern int usb_generic_driver_suspend(struct usb_device *udev,
55 pm_message_t msg);
56extern int usb_generic_driver_resume(struct usb_device *udev,
57 pm_message_t msg);
58
59static inline unsigned usb_get_max_power(struct usb_device *udev,
60 struct usb_host_config *c)
61{
62 /* SuperSpeed power is in 8 mA units; others are in 2 mA units */
63 unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2);
64
65 return c->desc.bMaxPower * mul;
66}
67
68extern void usb_kick_hub_wq(struct usb_device *dev);
69extern int usb_match_one_id_intf(struct usb_device *dev,
70 struct usb_host_interface *intf,
71 const struct usb_device_id *id);
72extern int usb_match_device(struct usb_device *dev,
73 const struct usb_device_id *id);
74extern const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
75 const struct usb_device_id *id);
76extern bool usb_driver_applicable(struct usb_device *udev,
77 struct usb_device_driver *udrv);
78extern void usb_forced_unbind_intf(struct usb_interface *intf);
79extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev);
80
81extern void usb_hub_release_all_ports(struct usb_device *hdev,
82 struct usb_dev_state *owner);
83extern bool usb_device_is_owned(struct usb_device *udev);
84
85extern int usb_hub_init(void);
86extern void usb_hub_cleanup(void);
87extern int usb_major_init(void);
88extern void usb_major_cleanup(void);
89extern int usb_device_supports_lpm(struct usb_device *udev);
90extern int usb_port_disable(struct usb_device *udev);
91
92#ifdef CONFIG_PM
93
94extern int usb_suspend(struct device *dev, pm_message_t msg);
95extern int usb_resume(struct device *dev, pm_message_t msg);
96extern int usb_resume_complete(struct device *dev);
97
98extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
99extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
100
101extern void usb_autosuspend_device(struct usb_device *udev);
102extern int usb_autoresume_device(struct usb_device *udev);
103extern int usb_remote_wakeup(struct usb_device *dev);
104extern int usb_runtime_suspend(struct device *dev);
105extern int usb_runtime_resume(struct device *dev);
106extern int usb_runtime_idle(struct device *dev);
107extern int usb_enable_usb2_hardware_lpm(struct usb_device *udev);
108extern int usb_disable_usb2_hardware_lpm(struct usb_device *udev);
109
110extern void usbfs_notify_suspend(struct usb_device *udev);
111extern void usbfs_notify_resume(struct usb_device *udev);
112
113#else
114
115static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
116{
117 return 0;
118}
119
120static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
121{
122 return 0;
123}
124
125#define usb_autosuspend_device(udev) do {} while (0)
126static inline int usb_autoresume_device(struct usb_device *udev)
127{
128 return 0;
129}
130
131static inline int usb_enable_usb2_hardware_lpm(struct usb_device *udev)
132{
133 return 0;
134}
135
136static inline int usb_disable_usb2_hardware_lpm(struct usb_device *udev)
137{
138 return 0;
139}
140
141#endif
142
143extern struct bus_type usb_bus_type;
144extern struct mutex usb_port_peer_mutex;
145extern struct device_type usb_device_type;
146extern struct device_type usb_if_device_type;
147extern struct device_type usb_ep_device_type;
148extern struct device_type usb_port_device_type;
149extern struct usb_device_driver usb_generic_driver;
150
151static inline int is_usb_device(const struct device *dev)
152{
153 return dev->type == &usb_device_type;
154}
155
156static inline int is_usb_interface(const struct device *dev)
157{
158 return dev->type == &usb_if_device_type;
159}
160
161static inline int is_usb_endpoint(const struct device *dev)
162{
163 return dev->type == &usb_ep_device_type;
164}
165
166static inline int is_usb_port(const struct device *dev)
167{
168 return dev->type == &usb_port_device_type;
169}
170
171static inline int is_root_hub(struct usb_device *udev)
172{
173 return (udev->parent == NULL);
174}
175
176/* Do the same for device drivers and interface drivers. */
177
178static inline int is_usb_device_driver(struct device_driver *drv)
179{
180 return container_of(drv, struct usbdrv_wrap, driver)->
181 for_devices;
182}
183
184/* for labeling diagnostics */
185extern const char *usbcore_name;
186
187/* sysfs stuff */
188extern const struct attribute_group *usb_device_groups[];
189extern const struct attribute_group *usb_interface_groups[];
190
191/* usbfs stuff */
192extern struct usb_driver usbfs_driver;
193extern const struct file_operations usbfs_devices_fops;
194extern const struct file_operations usbdev_file_operations;
195
196extern int usb_devio_init(void);
197extern void usb_devio_cleanup(void);
198
199/*
200 * Firmware specific cookie identifying a port's location. '0' == no location
201 * data available
202 */
203typedef u32 usb_port_location_t;
204
205/* internal notify stuff */
206extern void usb_notify_add_device(struct usb_device *udev);
207extern void usb_notify_remove_device(struct usb_device *udev);
208extern void usb_notify_add_bus(struct usb_bus *ubus);
209extern void usb_notify_remove_bus(struct usb_bus *ubus);
210extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
211 struct usb_hub_descriptor *desc);
212
213#ifdef CONFIG_ACPI
214extern int usb_acpi_register(void);
215extern void usb_acpi_unregister(void);
216extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
217 int port1);
218#else
219static inline int usb_acpi_register(void) { return 0; };
220static inline void usb_acpi_unregister(void) { };
221#endif