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gerrit-public.fairphone.software / kernel / msm / 8fe23e057172223fe2048768a4d87ab7de7477bc / . / drivers / usb / core / usb.h
blob: 4c36c7f512a05e03728ef7575c5b0e4cefa93295 [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);
Alan Sternddeac4e2009-01-15 17:03:33 -0500[diff] [blame]18extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
19 bool reset_hardware);
Greg Kroah-Hartman84cca822008-01-30 15:21:33 -0800[diff] [blame]20extern void usb_disable_interface(struct usb_device *dev,
Alan Sternddeac4e2009-01-15 17:03:33 -0500[diff] [blame]21 struct usb_interface *intf, bool reset_hardware);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]22extern void usb_release_interface_cache(struct kref *ref);
Greg Kroah-Hartman84cca822008-01-30 15:21:33 -0800[diff] [blame]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 *);
Oliver Neukum7ceec1f2007-01-26 14:26:21 +0100[diff] [blame]26extern void usb_detect_quirks(struct usb_device *udev);
Alan Stern253e0572009-10-27 15:20:13 -0400[diff] [blame]27extern int usb_remove_device(struct usb_device *udev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]28
29extern int usb_get_device_descriptor(struct usb_device *dev,
30 unsigned int size);
Alan Stern4f62efe2005-10-24 16:24:14 -0400[diff] [blame]31extern char *usb_cache_string(struct usb_device *udev, int index);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]32extern int usb_set_configuration(struct usb_device *dev, int configuration);
Greg Kroah-Hartmanb5ea0602007-08-02 22:44:27 -0600[diff] [blame]33extern int usb_choose_configuration(struct usb_device *udev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]34
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]35extern void usb_kick_khubd(struct usb_device *dev);
Greg Kroah-Hartmanbb417022007-01-26 14:26:21 +0100[diff] [blame]36extern int usb_match_device(struct usb_device *dev,
37 const struct usb_device_id *id);
Alan Stern78d9a482008-06-23 16:00:40 -0400[diff] [blame]38extern void usb_forced_unbind_intf(struct usb_interface *intf);
39extern void usb_rebind_intf(struct usb_interface *intf);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]40
Alan Stern7cbe5dc2009-06-29 10:56:54 -0400[diff] [blame]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
Greg KH6d5e8252005-04-18 17:39:24 -0700[diff] [blame]48extern int usb_hub_init(void);
49extern void usb_hub_cleanup(void);
50extern int usb_major_init(void);
51extern void usb_major_cleanup(void);
Greg KH6d5e8252005-04-18 17:39:24 -0700[diff] [blame]52
Alan Sternd388dab2006-07-01 22:14:24 -0400[diff] [blame]53#ifdef CONFIG_PM
54
Alan Sternf2189c42008-08-12 14:34:10 -0400[diff] [blame]55extern int usb_suspend(struct device *dev, pm_message_t msg);
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]56extern int usb_resume(struct device *dev, pm_message_t msg);
Alan Sternf2189c42008-08-12 14:34:10 -0400[diff] [blame]57
Alan Stern718efa62007-03-09 15:41:13 -0500[diff] [blame]58extern void usb_autosuspend_work(struct work_struct *work);
Alan Stern9ac39f22008-11-12 16:19:49 -0500[diff] [blame]59extern void usb_autoresume_work(struct work_struct *work);
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]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);
Alan Stern6b157c92007-03-13 16:37:30 -0400[diff] [blame]62extern int usb_external_suspend_device(struct usb_device *udev,
63 pm_message_t msg);
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]64extern int usb_external_resume_device(struct usb_device *udev,
65 pm_message_t msg);
David Brownell5edbfb72005-09-22 22:45:26 -0700[diff] [blame]66
Alan Sterne0318eb2006-09-26 14:50:20 -0400[diff] [blame]67static inline void usb_pm_lock(struct usb_device *udev)
68{
69 mutex_lock_nested(&udev->pm_mutex, udev->level);
70}
71
72static inline void usb_pm_unlock(struct usb_device *udev)
73{
74 mutex_unlock(&udev->pm_mutex);
75}
76
Alan Sternd388dab2006-07-01 22:14:24 -0400[diff] [blame]77#else
78
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]79static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
Alan Stern4956ecc2007-05-30 16:51:28 -0400[diff] [blame]80{
81 return 0;
82}
83
Alan Stern65bfd292008-11-25 16:39:18 -0500[diff] [blame]84static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
Alan Stern4956ecc2007-05-30 16:51:28 -0400[diff] [blame]85{
86 return 0;
87}
88
Alan Sterne0318eb2006-09-26 14:50:20 -0400[diff] [blame]89static inline void usb_pm_lock(struct usb_device *udev) {}
90static inline void usb_pm_unlock(struct usb_device *udev) {}
Alan Sternd388dab2006-07-01 22:14:24 -0400[diff] [blame]91
92#endif
93
Alan Stern645daaa2006-08-30 15:47:02 -0400[diff] [blame]94#ifdef CONFIG_USB_SUSPEND
95
Alan Stern94fcda12006-11-20 11:38:46 -0500[diff] [blame]96extern void usb_autosuspend_device(struct usb_device *udev);
Alan Stern19c26232007-02-20 15:03:32 -0500[diff] [blame]97extern void usb_try_autosuspend_device(struct usb_device *udev);
Alan Stern94fcda12006-11-20 11:38:46 -0500[diff] [blame]98extern int usb_autoresume_device(struct usb_device *udev);
Alan Stern645daaa2006-08-30 15:47:02 -0400[diff] [blame]99
100#else
101
Alan Stern19c26232007-02-20 15:03:32 -0500[diff] [blame]102#define usb_autosuspend_device(udev) do {} while (0)
103#define usb_try_autosuspend_device(udev) do {} while (0)
Alan Stern94fcda12006-11-20 11:38:46 -0500[diff] [blame]104static inline int usb_autoresume_device(struct usb_device *udev)
Alan Sterne0318eb2006-09-26 14:50:20 -0400[diff] [blame]105{
106 return 0;
107}
Alan Stern645daaa2006-08-30 15:47:02 -0400[diff] [blame]108
109#endif
110
Alan Sternbd859282006-09-19 10:14:07 -0400[diff] [blame]111extern struct workqueue_struct *ksuspend_usb_wq;
Alan Stern36e56a32006-07-01 22:08:06 -0400[diff] [blame]112extern struct bus_type usb_bus_type;
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]113extern struct device_type usb_device_type;
114extern struct device_type usb_if_device_type;
Kay Sievers55129662009-05-04 19:48:32 +0200[diff] [blame]115extern struct device_type usb_ep_device_type;
Alan Stern8bb54ab2006-07-01 22:08:49 -0400[diff] [blame]116extern struct usb_device_driver usb_generic_driver;
117
Luiz Fernando N. Capitulino095bc332006-08-26 23:48:11 -0300[diff] [blame]118static inline int is_usb_device(const struct device *dev)
Alan Stern8bb54ab2006-07-01 22:08:49 -0400[diff] [blame]119{
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]120 return dev->type == &usb_device_type;
Alan Stern8bb54ab2006-07-01 22:08:49 -0400[diff] [blame]121}
122
Kay Sievers55129662009-05-04 19:48:32 +0200[diff] [blame]123static inline int is_usb_interface(const struct device *dev)
124{
125 return dev->type == &usb_if_device_type;
126}
127
128static inline int is_usb_endpoint(const struct device *dev)
129{
130 return dev->type == &usb_ep_device_type;
131}
132
Alan Stern8bb54ab2006-07-01 22:08:49 -0400[diff] [blame]133/* Do the same for device drivers and interface drivers. */
134
135static inline int is_usb_device_driver(struct device_driver *drv)
136{
137 return container_of(drv, struct usbdrv_wrap, driver)->
138 for_devices;
139}
David Brownell5edbfb72005-09-22 22:45:26 -0700[diff] [blame]140
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]141/* Interfaces and their "power state" are owned by usbcore */
142
143static inline void mark_active(struct usb_interface *f)
144{
Alan Stern4d064c02006-07-01 22:11:44 -0400[diff] [blame]145 f->is_active = 1;
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]146}
147
148static inline void mark_quiesced(struct usb_interface *f)
149{
Alan Stern4d064c02006-07-01 22:11:44 -0400[diff] [blame]150 f->is_active = 0;
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]151}
152
Luiz Fernando N. Capitulino095bc332006-08-26 23:48:11 -0300[diff] [blame]153static inline int is_active(const struct usb_interface *f)
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]154{
Alan Stern4d064c02006-07-01 22:11:44 -0400[diff] [blame]155 return f->is_active;
David Brownelldb690872005-09-13 19:56:33 -0700[diff] [blame]156}
157
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]159/* for labeling diagnostics */
160extern const char *usbcore_name;
161
Alan Stern2e5f10e2008-04-30 15:37:19 -0400[diff] [blame]162/* sysfs stuff */
David Brownella4dbd672009-06-24 10:06:31 -0700[diff] [blame]163extern const struct attribute_group *usb_device_groups[];
164extern const struct attribute_group *usb_interface_groups[];
Alan Stern2e5f10e2008-04-30 15:37:19 -0400[diff] [blame]165
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]166/* usbfs stuff */
Alan Stern4a2a8a22006-07-01 22:05:01 -0400[diff] [blame]167extern struct mutex usbfs_mutex;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]168extern struct usb_driver usbfs_driver;
Luiz Fernando N. Capitulino066202d2006-08-05 20:37:11 -0300[diff] [blame]169extern const struct file_operations usbfs_devices_fops;
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]170extern const struct file_operations usbdev_file_operations;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]171extern void usbfs_conn_disc_event(void);
172
Kay Sievers9f8b17e2007-03-13 15:59:31 +0100[diff] [blame]173extern int usb_devio_init(void);
174extern void usb_devio_cleanup(void);
Greg KH6d5e8252005-04-18 17:39:24 -0700[diff] [blame]175
Greg Kroah-Hartman3099e752005-06-20 21:15:16 -0700[diff] [blame]176/* internal notify stuff */
177extern void usb_notify_add_device(struct usb_device *udev);
178extern void usb_notify_remove_device(struct usb_device *udev);
179extern void usb_notify_add_bus(struct usb_bus *ubus);
180extern void usb_notify_remove_bus(struct usb_bus *ubus);
181