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