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review.linaro.org / kernel / linux-linaro-stable.git / 95bec45d2051227ef037f1080d7cef003b88d852 / . / drivers / usb / core / usb.h
blob: 386177867a8adaf308383c156f3c9557d1abc870 [file] [log] [blame]
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]1#include <linux/pm.h>
2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]3/* Functions local to drivers/usb/core/ */
4
Greg Kroah-Hartman84cca822008-01-30 15:21:33 -0800[diff] [blame]5extern int usb_create_sysfs_dev_files(struct usb_device *dev);
6extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
7extern int usb_create_sysfs_intf_files(struct usb_interface *intf);
8extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
Alan Stern3b23dd62008-12-05 14:10:34 -0500[diff] [blame]9extern int usb_create_ep_devs(struct device *parent,
Greg Kroah-Hartman84cca822008-01-30 15:21:33 -0800[diff] [blame]10 struct usb_host_endpoint *endpoint,
Greg Kroah-Hartman84412f62006-06-14 12:14:34 -0700[diff] [blame]11 struct usb_device *udev);
Alan Stern3b23dd62008-12-05 14:10:34 -0500[diff] [blame]12extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]13
Alan Sternbdd016b2007-07-30 17:05:22 -0400[diff] [blame]14extern void usb_enable_endpoint(struct usb_device *dev,
Alan Stern2caf7fc2008-12-31 11:31:33 -0500[diff] [blame]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);
Greg Kroah-Hartman84cca822008-01-30 15:21:33 -0800[diff] [blame]18extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr);
19extern void usb_disable_interface(struct usb_device *dev,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]20 struct usb_interface *intf);
21extern void usb_release_interface_cache(struct kref *ref);
Greg Kroah-Hartman84cca822008-01-30 15:21:33 -0800[diff] [blame]22extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
23extern int usb_deauthorize_device(struct usb_device *);
24extern int usb_authorize_device(struct usb_device *);
Oliver Neukum7ceec1f2007-01-26 14:26:21 +0100[diff] [blame]25extern void usb_detect_quirks(struct usb_device *udev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]26
27extern int usb_get_device_descriptor(struct usb_device *dev,
28 unsigned int size);
Alan Stern4f62efe2005-10-24 16:24:14 -0400[diff] [blame]29extern char *usb_cache_string(struct usb_device *udev, int index);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]30extern int usb_set_configuration(struct usb_device *dev, int configuration);
Greg Kroah-Hartmanb5ea0602007-08-02 22:44:27 -0600[diff] [blame]31extern int usb_choose_configuration(struct usb_device *udev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]32
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]33extern void usb_kick_khubd(struct usb_device *dev);
Greg Kroah-Hartmanbb417022007-01-26 14:26:21 +0100[diff] [blame]34extern int usb_match_device(struct usb_device *dev,
35 const struct usb_device_id *id);
Alan Stern78d9a482008-06-23 16:00:40 -0400[diff] [blame]36extern void usb_forced_unbind_intf(struct usb_interface *intf);
37extern void usb_rebind_intf(struct usb_interface *intf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]38
Greg KH6d5e8252005-04-18 17:39:24 -0700[diff] [blame]39extern int usb_hub_init(void);
40extern void usb_hub_cleanup(void);
41extern int usb_major_init(void);
42extern void usb_major_cleanup(void);
43extern int usb_host_init(void);
44extern void usb_host_cleanup(void);
45
Alan Sternd388dab2006-07-01 22:14:24 -0400[diff] [blame]46#ifdef CONFIG_PM
47
Alan Sternf2189c42008-08-12 14:34:10 -0400[diff] [blame]48extern int usb_suspend(struct device *dev, pm_message_t msg);
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]49extern int usb_resume(struct device *dev, pm_message_t msg);
Alan Sternf2189c42008-08-12 14:34:10 -0400[diff] [blame]50
Alan Stern718efa62007-03-09 15:41:13 -0500[diff] [blame]51extern void usb_autosuspend_work(struct work_struct *work);
Alan Stern9ac39f22008-11-12 16:19:49 -0500[diff] [blame]52extern void usb_autoresume_work(struct work_struct *work);
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]53extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
54extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
Alan Stern6b157c92007-03-13 16:37:30 -0400[diff] [blame]55extern int usb_external_suspend_device(struct usb_device *udev,
56 pm_message_t msg);
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]57extern int usb_external_resume_device(struct usb_device *udev,
58 pm_message_t msg);
David Brownell5edbfb72005-09-22 22:45:26 -0700[diff] [blame]59
Alan Sterne0318eb2006-09-26 14:50:20 -0400[diff] [blame]60static inline void usb_pm_lock(struct usb_device *udev)
61{
62 mutex_lock_nested(&udev->pm_mutex, udev->level);
63}
64
65static inline void usb_pm_unlock(struct usb_device *udev)
66{
67 mutex_unlock(&udev->pm_mutex);
68}
69
Alan Sternd388dab2006-07-01 22:14:24 -0400[diff] [blame]70#else
71
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]72static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
Alan Stern4956ecc2007-05-30 16:51:28 -0400[diff] [blame]73{
74 return 0;
75}
76
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]77static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
Alan Stern4956ecc2007-05-30 16:51:28 -0400[diff] [blame]78{
79 return 0;
80}
81
Alan Sterne0318eb2006-09-26 14:50:20 -0400[diff] [blame]82static inline void usb_pm_lock(struct usb_device *udev) {}
83static inline void usb_pm_unlock(struct usb_device *udev) {}
Alan Sternd388dab2006-07-01 22:14:24 -0400[diff] [blame]84
85#endif
86
Alan Stern645daaa2006-08-30 15:47:02 -0400[diff] [blame]87#ifdef CONFIG_USB_SUSPEND
88
Alan Stern94fcda12006-11-20 11:38:46 -0500[diff] [blame]89extern void usb_autosuspend_device(struct usb_device *udev);
Alan Stern19c26232007-02-20 15:03:32 -0500[diff] [blame]90extern void usb_try_autosuspend_device(struct usb_device *udev);
Alan Stern94fcda12006-11-20 11:38:46 -0500[diff] [blame]91extern int usb_autoresume_device(struct usb_device *udev);
Alan Stern645daaa2006-08-30 15:47:02 -0400[diff] [blame]92
93#else
94
Alan Stern19c26232007-02-20 15:03:32 -0500[diff] [blame]95#define usb_autosuspend_device(udev) do {} while (0)
96#define usb_try_autosuspend_device(udev) do {} while (0)
Alan Stern94fcda12006-11-20 11:38:46 -0500[diff] [blame]97static inline int usb_autoresume_device(struct usb_device *udev)
Alan Sterne0318eb2006-09-26 14:50:20 -0400[diff] [blame]98{
99 return 0;
100}
Alan Stern645daaa2006-08-30 15:47:02 -0400[diff] [blame]101
102#endif
103
Alan Sternbd859282006-09-19 10:14:07 -0400[diff] [blame]104extern struct workqueue_struct *ksuspend_usb_wq;
Alan Stern36e56a32006-07-01 22:08:06 -0400[diff] [blame]105extern struct bus_type usb_bus_type;
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]106extern struct device_type usb_device_type;
107extern struct device_type usb_if_device_type;
Alan Stern8bb54ab2006-07-01 22:08:49 -0400[diff] [blame]108extern struct usb_device_driver usb_generic_driver;
109
Luiz Fernando N. Capitulino095bc332006-08-26 23:48:11 -0300[diff] [blame]110static inline int is_usb_device(const struct device *dev)
Alan Stern8bb54ab2006-07-01 22:08:49 -0400[diff] [blame]111{
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]112 return dev->type == &usb_device_type;
Alan Stern8bb54ab2006-07-01 22:08:49 -0400[diff] [blame]113}
114
115/* Do the same for device drivers and interface drivers. */
116
117static inline int is_usb_device_driver(struct device_driver *drv)
118{
119 return container_of(drv, struct usbdrv_wrap, driver)->
120 for_devices;
121}
David Brownell5edbfb72005-09-22 22:45:26 -0700[diff] [blame]122
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]123/* Interfaces and their "power state" are owned by usbcore */
124
125static inline void mark_active(struct usb_interface *f)
126{
Alan Stern4d064c02006-07-01 22:11:44 -0400[diff] [blame]127 f->is_active = 1;
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]128}
129
130static inline void mark_quiesced(struct usb_interface *f)
131{
Alan Stern4d064c02006-07-01 22:11:44 -0400[diff] [blame]132 f->is_active = 0;
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]133}
134
Luiz Fernando N. Capitulino095bc332006-08-26 23:48:11 -0300[diff] [blame]135static inline int is_active(const struct usb_interface *f)
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]136{
Alan Stern4d064c02006-07-01 22:11:44 -0400[diff] [blame]137 return f->is_active;
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]138}
139
140
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]141/* for labeling diagnostics */
142extern const char *usbcore_name;
143
Alan Stern2e5f10e2008-04-30 15:37:19 -0400[diff] [blame]144/* sysfs stuff */
145extern struct attribute_group *usb_device_groups[];
146extern struct attribute_group *usb_interface_groups[];
147
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]148/* usbfs stuff */
Alan Stern4a2a8a22006-07-01 22:05:01 -0400[diff] [blame]149extern struct mutex usbfs_mutex;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]150extern struct usb_driver usbfs_driver;
Luiz Fernando N. Capitulino066202d2006-08-05 20:37:11 -0300[diff] [blame]151extern const struct file_operations usbfs_devices_fops;
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]152extern const struct file_operations usbdev_file_operations;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]153extern void usbfs_conn_disc_event(void);
Alan Sterncd9f0372008-06-24 14:47:04 -0400[diff] [blame]154extern void usb_fs_classdev_common_remove(struct usb_device *udev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]155
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]156extern int usb_devio_init(void);
157extern void usb_devio_cleanup(void);
Greg KH6d5e8252005-04-18 17:39:24 -0700[diff] [blame]158
Greg Kroah-Hartman3099e752005-06-20 21:15:16 -0700[diff] [blame]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