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, struct usb_host_endpoint *endpoint, 8 struct usb_device *udev); 9 extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint); 10 11 extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr); 12 extern void usb_disable_interface (struct usb_device *dev, 13 struct usb_interface *intf); 14 extern void usb_release_interface_cache(struct kref *ref); 15 extern void usb_disable_device (struct usb_device *dev, int skip_ep0); 16 extern void usb_detect_quirks(struct usb_device *udev); 17 18 extern int usb_get_device_descriptor(struct usb_device *dev, 19 unsigned int size); 20 extern char *usb_cache_string(struct usb_device *udev, int index); 21 extern int usb_set_configuration(struct usb_device *dev, int configuration); 22 23 extern void usb_kick_khubd(struct usb_device *dev); 24 extern int usb_match_device(struct usb_device *dev, 25 const struct usb_device_id *id); 26 27 extern int usb_hub_init(void); 28 extern void usb_hub_cleanup(void); 29 extern int usb_major_init(void); 30 extern void usb_major_cleanup(void); 31 extern int usb_host_init(void); 32 extern void usb_host_cleanup(void); 33 34 #ifdef CONFIG_PM 35 36 extern void usb_autosuspend_work(struct work_struct *work); 37 extern int usb_port_suspend(struct usb_device *dev); 38 extern int usb_port_resume(struct usb_device *dev); 39 extern int usb_external_suspend_device(struct usb_device *udev, 40 pm_message_t msg); 41 extern int usb_external_resume_device(struct usb_device *udev); 42 43 static inline void usb_pm_lock(struct usb_device *udev) 44 { 45 mutex_lock_nested(&udev->pm_mutex, udev->level); 46 } 47 48 static inline void usb_pm_unlock(struct usb_device *udev) 49 { 50 mutex_unlock(&udev->pm_mutex); 51 } 52 53 #else 54 55 #define usb_port_suspend(dev) 0 56 #define usb_port_resume(dev) 0 57 static inline void usb_pm_lock(struct usb_device *udev) {} 58 static inline void usb_pm_unlock(struct usb_device *udev) {} 59 60 #endif 61 62 #ifdef CONFIG_USB_SUSPEND 63 64 extern void usb_autosuspend_device(struct usb_device *udev); 65 extern void usb_try_autosuspend_device(struct usb_device *udev); 66 extern int usb_autoresume_device(struct usb_device *udev); 67 68 #else 69 70 #define usb_autosuspend_device(udev) do {} while (0) 71 #define usb_try_autosuspend_device(udev) do {} while (0) 72 static inline int usb_autoresume_device(struct usb_device *udev) 73 { 74 return 0; 75 } 76 77 #endif 78 79 extern struct workqueue_struct *ksuspend_usb_wq; 80 extern struct bus_type usb_bus_type; 81 extern struct device_type usb_device_type; 82 extern struct device_type usb_if_device_type; 83 extern struct usb_device_driver usb_generic_driver; 84 85 static inline int is_usb_device(const struct device *dev) 86 { 87 return dev->type == &usb_device_type; 88 } 89 90 /* Do the same for device drivers and interface drivers. */ 91 92 static inline int is_usb_device_driver(struct device_driver *drv) 93 { 94 return container_of(drv, struct usbdrv_wrap, driver)-> 95 for_devices; 96 } 97 98 /* Interfaces and their "power state" are owned by usbcore */ 99 100 static inline void mark_active(struct usb_interface *f) 101 { 102 f->is_active = 1; 103 } 104 105 static inline void mark_quiesced(struct usb_interface *f) 106 { 107 f->is_active = 0; 108 } 109 110 static inline int is_active(const struct usb_interface *f) 111 { 112 return f->is_active; 113 } 114 115 116 /* for labeling diagnostics */ 117 extern const char *usbcore_name; 118 119 /* usbfs stuff */ 120 extern struct mutex usbfs_mutex; 121 extern struct usb_driver usbfs_driver; 122 extern const struct file_operations usbfs_devices_fops; 123 extern const struct file_operations usbdev_file_operations; 124 extern void usbfs_conn_disc_event(void); 125 126 extern int usb_devio_init(void); 127 extern void usb_devio_cleanup(void); 128 129 struct dev_state { 130 struct list_head list; /* state list */ 131 struct usb_device *dev; 132 struct file *file; 133 spinlock_t lock; /* protects the async urb lists */ 134 struct list_head async_pending; 135 struct list_head async_completed; 136 wait_queue_head_t wait; /* wake up if a request completed */ 137 unsigned int discsignr; 138 struct pid *disc_pid; 139 uid_t disc_uid, disc_euid; 140 void __user *disccontext; 141 unsigned long ifclaimed; 142 u32 secid; 143 }; 144 145 /* internal notify stuff */ 146 extern void usb_notify_add_device(struct usb_device *udev); 147 extern void usb_notify_remove_device(struct usb_device *udev); 148 extern void usb_notify_add_bus(struct usb_bus *ubus); 149 extern void usb_notify_remove_bus(struct usb_bus *ubus); 150 151