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 33 extern int usb_hub_init(void); 34 extern void usb_hub_cleanup(void); 35 extern int usb_major_init(void); 36 extern void usb_major_cleanup(void); 37 extern int usb_host_init(void); 38 extern void usb_host_cleanup(void); 39 40 #ifdef CONFIG_PM 41 42 extern void usb_autosuspend_work(struct work_struct *work); 43 extern int usb_port_suspend(struct usb_device *dev); 44 extern int usb_port_resume(struct usb_device *dev); 45 extern int usb_external_suspend_device(struct usb_device *udev, 46 pm_message_t msg); 47 extern int usb_external_resume_device(struct usb_device *udev); 48 49 static inline void usb_pm_lock(struct usb_device *udev) 50 { 51 mutex_lock_nested(&udev->pm_mutex, udev->level); 52 } 53 54 static inline void usb_pm_unlock(struct usb_device *udev) 55 { 56 mutex_unlock(&udev->pm_mutex); 57 } 58 59 #else 60 61 static inline int usb_port_suspend(struct usb_device *udev) 62 { 63 return 0; 64 } 65 66 static inline int usb_port_resume(struct usb_device *udev) 67 { 68 return 0; 69 } 70 71 static inline void usb_pm_lock(struct usb_device *udev) {} 72 static inline void usb_pm_unlock(struct usb_device *udev) {} 73 74 #endif 75 76 #ifdef CONFIG_USB_SUSPEND 77 78 extern void usb_autosuspend_device(struct usb_device *udev); 79 extern void usb_try_autosuspend_device(struct usb_device *udev); 80 extern int usb_autoresume_device(struct usb_device *udev); 81 82 #else 83 84 #define usb_autosuspend_device(udev) do {} while (0) 85 #define usb_try_autosuspend_device(udev) do {} while (0) 86 static inline int usb_autoresume_device(struct usb_device *udev) 87 { 88 return 0; 89 } 90 91 #endif 92 93 extern struct workqueue_struct *ksuspend_usb_wq; 94 extern struct bus_type usb_bus_type; 95 extern struct device_type usb_device_type; 96 extern struct device_type usb_if_device_type; 97 extern struct usb_device_driver usb_generic_driver; 98 99 static inline int is_usb_device(const struct device *dev) 100 { 101 return dev->type == &usb_device_type; 102 } 103 104 /* Do the same for device drivers and interface drivers. */ 105 106 static inline int is_usb_device_driver(struct device_driver *drv) 107 { 108 return container_of(drv, struct usbdrv_wrap, driver)-> 109 for_devices; 110 } 111 112 /* Interfaces and their "power state" are owned by usbcore */ 113 114 static inline void mark_active(struct usb_interface *f) 115 { 116 f->is_active = 1; 117 f->dev.power.power_state.event = PM_EVENT_ON; 118 } 119 120 static inline void mark_quiesced(struct usb_interface *f) 121 { 122 f->is_active = 0; 123 f->dev.power.power_state.event = PM_EVENT_SUSPEND; 124 } 125 126 static inline int is_active(const struct usb_interface *f) 127 { 128 return f->is_active; 129 } 130 131 132 /* for labeling diagnostics */ 133 extern const char *usbcore_name; 134 135 /* usbfs stuff */ 136 extern struct mutex usbfs_mutex; 137 extern struct usb_driver usbfs_driver; 138 extern const struct file_operations usbfs_devices_fops; 139 extern const struct file_operations usbdev_file_operations; 140 extern void usbfs_conn_disc_event(void); 141 142 extern int usb_devio_init(void); 143 extern void usb_devio_cleanup(void); 144 145 struct dev_state { 146 struct list_head list; /* state list */ 147 struct usb_device *dev; 148 struct file *file; 149 spinlock_t lock; /* protects the async urb lists */ 150 struct list_head async_pending; 151 struct list_head async_completed; 152 wait_queue_head_t wait; /* wake up if a request completed */ 153 unsigned int discsignr; 154 struct pid *disc_pid; 155 uid_t disc_uid, disc_euid; 156 void __user *disccontext; 157 unsigned long ifclaimed; 158 u32 secid; 159 }; 160 161 /* internal notify stuff */ 162 extern void usb_notify_add_device(struct usb_device *udev); 163 extern void usb_notify_remove_device(struct usb_device *udev); 164 extern void usb_notify_add_bus(struct usb_bus *ubus); 165 extern void usb_notify_remove_bus(struct usb_bus *ubus); 166 167