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); 158 159