Loading...
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 char *usb_cache_string(struct usb_device *udev, int index);
51extern int usb_set_configuration(struct usb_device *dev, int configuration);
52extern int usb_choose_configuration(struct usb_device *udev);
53extern int usb_generic_driver_probe(struct usb_device *udev);
54extern void usb_generic_driver_disconnect(struct usb_device *udev);
55extern int usb_generic_driver_suspend(struct usb_device *udev,
56 pm_message_t msg);
57extern int usb_generic_driver_resume(struct usb_device *udev,
58 pm_message_t msg);
59
60static inline unsigned usb_get_max_power(struct usb_device *udev,
61 struct usb_host_config *c)
62{
63 /* SuperSpeed power is in 8 mA units; others are in 2 mA units */
64 unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2);
65
66 return c->desc.bMaxPower * mul;
67}
68
69extern void usb_kick_hub_wq(struct usb_device *dev);
70extern int usb_match_one_id_intf(struct usb_device *dev,
71 struct usb_host_interface *intf,
72 const struct usb_device_id *id);
73extern int usb_match_device(struct usb_device *dev,
74 const struct usb_device_id *id);
75extern const struct usb_device_id *usb_device_match_id(struct usb_device *udev,
76 const struct usb_device_id *id);
77extern void usb_forced_unbind_intf(struct usb_interface *intf);
78extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev);
79
80extern void usb_hub_release_all_ports(struct usb_device *hdev,
81 struct usb_dev_state *owner);
82extern bool usb_device_is_owned(struct usb_device *udev);
83
84extern int usb_hub_init(void);
85extern void usb_hub_cleanup(void);
86extern int usb_major_init(void);
87extern void usb_major_cleanup(void);
88extern int usb_device_supports_lpm(struct usb_device *udev);
89extern int usb_port_disable(struct usb_device *udev);
90
91#ifdef CONFIG_PM
92
93extern int usb_suspend(struct device *dev, pm_message_t msg);
94extern int usb_resume(struct device *dev, pm_message_t msg);
95extern int usb_resume_complete(struct device *dev);
96
97extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
98extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
99
100extern void usb_autosuspend_device(struct usb_device *udev);
101extern int usb_autoresume_device(struct usb_device *udev);
102extern int usb_remote_wakeup(struct usb_device *dev);
103extern int usb_runtime_suspend(struct device *dev);
104extern int usb_runtime_resume(struct device *dev);
105extern int usb_runtime_idle(struct device *dev);
106extern int usb_enable_usb2_hardware_lpm(struct usb_device *udev);
107extern int usb_disable_usb2_hardware_lpm(struct usb_device *udev);
108
109extern void usbfs_notify_suspend(struct usb_device *udev);
110extern void usbfs_notify_resume(struct usb_device *udev);
111
112#else
113
114static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
115{
116 return 0;
117}
118
119static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
120{
121 return 0;
122}
123
124#define usb_autosuspend_device(udev) do {} while (0)
125static inline int usb_autoresume_device(struct usb_device *udev)
126{
127 return 0;
128}
129
130static inline int usb_enable_usb2_hardware_lpm(struct usb_device *udev)
131{
132 return 0;
133}
134
135static inline int usb_disable_usb2_hardware_lpm(struct usb_device *udev)
136{
137 return 0;
138}
139
140#endif
141
142extern struct bus_type usb_bus_type;
143extern struct mutex usb_port_peer_mutex;
144extern struct device_type usb_device_type;
145extern struct device_type usb_if_device_type;
146extern struct device_type usb_ep_device_type;
147extern struct device_type usb_port_device_type;
148extern struct usb_device_driver usb_generic_driver;
149
150static inline int is_usb_device(const struct device *dev)
151{
152 return dev->type == &usb_device_type;
153}
154
155static inline int is_usb_interface(const struct device *dev)
156{
157 return dev->type == &usb_if_device_type;
158}
159
160static inline int is_usb_endpoint(const struct device *dev)
161{
162 return dev->type == &usb_ep_device_type;
163}
164
165static inline int is_usb_port(const struct device *dev)
166{
167 return dev->type == &usb_port_device_type;
168}
169
170static inline int is_root_hub(struct usb_device *udev)
171{
172 return (udev->parent == NULL);
173}
174
175/* Do the same for device drivers and interface drivers. */
176
177static inline int is_usb_device_driver(struct device_driver *drv)
178{
179 return container_of(drv, struct usbdrv_wrap, driver)->
180 for_devices;
181}
182
183/* for labeling diagnostics */
184extern const char *usbcore_name;
185
186/* sysfs stuff */
187extern const struct attribute_group *usb_device_groups[];
188extern const struct attribute_group *usb_interface_groups[];
189
190/* usbfs stuff */
191extern struct usb_driver usbfs_driver;
192extern const struct file_operations usbfs_devices_fops;
193extern const struct file_operations usbdev_file_operations;
194extern void usbfs_conn_disc_event(void);
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
1#include <linux/pm.h>
2#include <linux/acpi.h>
3
4struct usb_hub_descriptor;
5struct usb_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_unbind_and_rebind_marked_interfaces(struct usb_device *udev);
59
60extern void usb_hub_release_all_ports(struct usb_device *hdev,
61 struct usb_dev_state *owner);
62extern bool usb_device_is_owned(struct usb_device *udev);
63
64extern int usb_hub_init(void);
65extern void usb_hub_cleanup(void);
66extern int usb_major_init(void);
67extern void usb_major_cleanup(void);
68
69#ifdef CONFIG_PM
70
71extern int usb_suspend(struct device *dev, pm_message_t msg);
72extern int usb_resume(struct device *dev, pm_message_t msg);
73extern int usb_resume_complete(struct device *dev);
74
75extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
76extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
77
78#else
79
80static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
81{
82 return 0;
83}
84
85static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
86{
87 return 0;
88}
89
90#endif
91
92#ifdef CONFIG_PM_RUNTIME
93
94extern void usb_autosuspend_device(struct usb_device *udev);
95extern int usb_autoresume_device(struct usb_device *udev);
96extern int usb_remote_wakeup(struct usb_device *dev);
97extern int usb_runtime_suspend(struct device *dev);
98extern int usb_runtime_resume(struct device *dev);
99extern int usb_runtime_idle(struct device *dev);
100extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
101
102#else
103
104#define usb_autosuspend_device(udev) do {} while (0)
105static inline int usb_autoresume_device(struct usb_device *udev)
106{
107 return 0;
108}
109
110static inline int usb_remote_wakeup(struct usb_device *udev)
111{
112 return 0;
113}
114
115static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
116{
117 return 0;
118}
119#endif
120
121extern struct bus_type usb_bus_type;
122extern struct device_type usb_device_type;
123extern struct device_type usb_if_device_type;
124extern struct device_type usb_ep_device_type;
125extern struct device_type usb_port_device_type;
126extern struct usb_device_driver usb_generic_driver;
127
128static inline int is_usb_device(const struct device *dev)
129{
130 return dev->type == &usb_device_type;
131}
132
133static inline int is_usb_interface(const struct device *dev)
134{
135 return dev->type == &usb_if_device_type;
136}
137
138static inline int is_usb_endpoint(const struct device *dev)
139{
140 return dev->type == &usb_ep_device_type;
141}
142
143static inline int is_usb_port(const struct device *dev)
144{
145 return dev->type == &usb_port_device_type;
146}
147
148/* Do the same for device drivers and interface drivers. */
149
150static inline int is_usb_device_driver(struct device_driver *drv)
151{
152 return container_of(drv, struct usbdrv_wrap, driver)->
153 for_devices;
154}
155
156/* for labeling diagnostics */
157extern const char *usbcore_name;
158
159/* sysfs stuff */
160extern const struct attribute_group *usb_device_groups[];
161extern const struct attribute_group *usb_interface_groups[];
162
163/* usbfs stuff */
164extern struct mutex usbfs_mutex;
165extern struct usb_driver usbfs_driver;
166extern const struct file_operations usbfs_devices_fops;
167extern const struct file_operations usbdev_file_operations;
168extern void usbfs_conn_disc_event(void);
169
170extern int usb_devio_init(void);
171extern void usb_devio_cleanup(void);
172
173/* internal notify stuff */
174extern void usb_notify_add_device(struct usb_device *udev);
175extern void usb_notify_remove_device(struct usb_device *udev);
176extern void usb_notify_add_bus(struct usb_bus *ubus);
177extern void usb_notify_remove_bus(struct usb_bus *ubus);
178extern enum usb_port_connect_type
179 usb_get_hub_port_connect_type(struct usb_device *hdev, int port1);
180extern void usb_set_hub_port_connect_type(struct usb_device *hdev, int port1,
181 enum usb_port_connect_type type);
182extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
183 struct usb_hub_descriptor *desc);
184
185#ifdef CONFIG_ACPI
186extern int usb_acpi_register(void);
187extern void usb_acpi_unregister(void);
188extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
189 int port1);
190#else
191static inline int usb_acpi_register(void) { return 0; };
192static inline void usb_acpi_unregister(void) { };
193#endif