drivers/usb/core/usb.h

   1 /* Functions local to drivers/usb/core/ */
   2
   3 extern int usb_create_sysfs_dev_files(struct usb_device *dev);
   4 extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
   5 extern int usb_create_sysfs_intf_files(struct usb_interface *intf);
   6 extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
   7 extern int usb_create_ep_files(struct device *parent,
   8                                 struct usb_host_endpoint *endpoint,
   9                                 struct usb_device *udev);
  10 extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint);
  11
  12 extern void usb_enable_endpoint(struct usb_device *dev,
  13                 struct usb_host_endpoint *ep);
  14 extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr);
  15 extern void usb_disable_interface(struct usb_device *dev,
  16                 struct usb_interface *intf);
  17 extern void usb_release_interface_cache(struct kref *ref);
  18 extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
  19 extern int usb_deauthorize_device(struct usb_device *);
  20 extern int usb_authorize_device(struct usb_device *);
  21 extern void usb_detect_quirks(struct usb_device *udev);
  22
  23 extern int usb_get_device_descriptor(struct usb_device *dev,
  24                 unsigned int size);
  25 extern char *usb_cache_string(struct usb_device *udev, int index);
  26 extern int usb_set_configuration(struct usb_device *dev, int configuration);
  27 extern int usb_choose_configuration(struct usb_device *udev);
  28
  29 extern void usb_kick_khubd(struct usb_device *dev);
  30 extern int usb_match_device(struct usb_device *dev,
  31                             const struct usb_device_id *id);
  32 extern void usb_forced_unbind_intf(struct usb_interface *intf);
  33 extern void usb_rebind_intf(struct usb_interface *intf);
  34
  35 extern int  usb_hub_init(void);
  36 extern void usb_hub_cleanup(void);
  37 extern int usb_major_init(void);
  38 extern void usb_major_cleanup(void);
  39 extern int usb_host_init(void);
  40 extern void usb_host_cleanup(void);
  41
  42 #ifdef  CONFIG_PM
  43
  44 extern int usb_suspend(struct device *dev, pm_message_t msg);
  45 extern int usb_resume(struct device *dev);
  46
  47 extern void usb_autosuspend_work(struct work_struct *work);
  48 extern int usb_port_suspend(struct usb_device *dev);
  49 extern int usb_port_resume(struct usb_device *dev);
  50 extern int usb_external_suspend_device(struct usb_device *udev,
  51                 pm_message_t msg);
  52 extern int usb_external_resume_device(struct usb_device *udev);
  53
  54 static inline void usb_pm_lock(struct usb_device *udev)
  55 {
  56         mutex_lock_nested(&udev->pm_mutex, udev->level);
  57 }
  58
  59 static inline void usb_pm_unlock(struct usb_device *udev)
  60 {
  61         mutex_unlock(&udev->pm_mutex);
  62 }
  63
  64 #else
  65
  66 static inline int usb_port_suspend(struct usb_device *udev)
  67 {
  68         return 0;
  69 }
  70
  71 static inline int usb_port_resume(struct usb_device *udev)
  72 {
  73         return 0;
  74 }
  75
  76 static inline void usb_pm_lock(struct usb_device *udev) {}
  77 static inline void usb_pm_unlock(struct usb_device *udev) {}
  78
  79 #endif
  80
  81 #ifdef CONFIG_USB_SUSPEND
  82
  83 extern void usb_autosuspend_device(struct usb_device *udev);
  84 extern void usb_try_autosuspend_device(struct usb_device *udev);
  85 extern int usb_autoresume_device(struct usb_device *udev);
  86
  87 #else
  88
  89 #define usb_autosuspend_device(udev)            do {} while (0)
  90 #define usb_try_autosuspend_device(udev)        do {} while (0)
  91 static inline int usb_autoresume_device(struct usb_device *udev)
  92 {
  93         return 0;
  94 }
  95
  96 #endif
  97
  98 extern struct workqueue_struct *ksuspend_usb_wq;
  99 extern struct bus_type usb_bus_type;
 100 extern struct device_type usb_device_type;
 101 extern struct device_type usb_if_device_type;
 102 extern struct usb_device_driver usb_generic_driver;
 103
 104 static inline int is_usb_device(const struct device *dev)
 105 {
 106         return dev->type == &usb_device_type;
 107 }
 108
 109 /* Do the same for device drivers and interface drivers. */
 110
 111 static inline int is_usb_device_driver(struct device_driver *drv)
 112 {
 113         return container_of(drv, struct usbdrv_wrap, driver)->
 114                         for_devices;
 115 }
 116
 117 /* Interfaces and their "power state" are owned by usbcore */
 118
 119 static inline void mark_active(struct usb_interface *f)
 120 {
 121         f->is_active = 1;
 122 }
 123
 124 static inline void mark_quiesced(struct usb_interface *f)
 125 {
 126         f->is_active = 0;
 127 }
 128
 129 static inline int is_active(const struct usb_interface *f)
 130 {
 131         return f->is_active;
 132 }
 133
 134
 135 /* for labeling diagnostics */
 136 extern const char *usbcore_name;
 137
 138 /* sysfs stuff */
 139 extern struct attribute_group *usb_device_groups[];
 140 extern struct attribute_group *usb_interface_groups[];
 141
 142 /* usbfs stuff */
 143 extern struct mutex usbfs_mutex;
 144 extern struct usb_driver usbfs_driver;
 145 extern const struct file_operations usbfs_devices_fops;
 146 extern const struct file_operations usbdev_file_operations;
 147 extern void usbfs_conn_disc_event(void);
 148 extern void usb_fs_classdev_common_remove(struct usb_device *udev);
 149
 150 extern int usb_devio_init(void);
 151 extern void usb_devio_cleanup(void);
 152
 153 /* internal notify stuff */
 154 extern void usb_notify_add_device(struct usb_device *udev);
 155 extern void usb_notify_remove_device(struct usb_device *udev);
 156 extern void usb_notify_add_bus(struct usb_bus *ubus);
 157 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 158