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_enable_endpoint(struct usb_device *dev, 12 struct usb_host_endpoint *ep); 13 extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr); 14 extern void usb_disable_interface (struct usb_device *dev, 15 struct usb_interface *intf); 16 extern void usb_release_interface_cache(struct kref *ref); 17 extern void usb_disable_device (struct usb_device *dev, int skip_ep0); 18 extern int usb_deauthorize_device (struct usb_device *); 19 extern int usb_authorize_device (struct usb_device *); 20 extern void usb_detect_quirks(struct usb_device *udev); 21 22 extern int usb_get_device_descriptor(struct usb_device *dev, 23 unsigned int size); 24 extern char *usb_cache_string(struct usb_device *udev, int index); 25 extern int usb_set_configuration(struct usb_device *dev, int configuration); 26 extern int usb_choose_configuration(struct usb_device *udev); 27 28 extern void usb_kick_khubd(struct usb_device *dev); 29 extern int usb_match_device(struct usb_device *dev, 30 const struct usb_device_id *id); 31 32 extern int usb_hub_init(void); 33 extern void usb_hub_cleanup(void); 34 extern int usb_major_init(void); 35 extern void usb_major_cleanup(void); 36 extern int usb_host_init(void); 37 extern void usb_host_cleanup(void); 38 39 #ifdef CONFIG_PM 40 41 extern void usb_autosuspend_work(struct work_struct *work); 42 extern int usb_port_suspend(struct usb_device *dev); 43 extern int usb_port_resume(struct usb_device *dev); 44 extern int usb_external_suspend_device(struct usb_device *udev, 45 pm_message_t msg); 46 extern int usb_external_resume_device(struct usb_device *udev); 47 48 static inline void usb_pm_lock(struct usb_device *udev) 49 { 50 mutex_lock_nested(&udev->pm_mutex, udev->level); 51 } 52 53 static inline void usb_pm_unlock(struct usb_device *udev) 54 { 55 mutex_unlock(&udev->pm_mutex); 56 } 57 58 #else 59 60 static inline int usb_port_suspend(struct usb_device *udev) 61 { 62 return 0; 63 } 64 65 static inline int usb_port_resume(struct usb_device *udev) 66 { 67 return 0; 68 } 69 70 static inline void usb_pm_lock(struct usb_device *udev) {} 71 static inline void usb_pm_unlock(struct usb_device *udev) {} 72 73 #endif 74 75 #ifdef CONFIG_USB_SUSPEND 76 77 extern void usb_autosuspend_device(struct usb_device *udev); 78 extern void usb_try_autosuspend_device(struct usb_device *udev); 79 extern int usb_autoresume_device(struct usb_device *udev); 80 81 #else 82 83 #define usb_autosuspend_device(udev) do {} while (0) 84 #define usb_try_autosuspend_device(udev) do {} while (0) 85 static inline int usb_autoresume_device(struct usb_device *udev) 86 { 87 return 0; 88 } 89 90 #endif 91 92 extern struct workqueue_struct *ksuspend_usb_wq; 93 extern struct bus_type usb_bus_type; 94 extern struct device_type usb_device_type; 95 extern struct device_type usb_if_device_type; 96 extern struct usb_device_driver usb_generic_driver; 97 98 static inline int is_usb_device(const struct device *dev) 99 { 100 return dev->type == &usb_device_type; 101 } 102 103 /* Do the same for device drivers and interface drivers. */ 104 105 static inline int is_usb_device_driver(struct device_driver *drv) 106 { 107 return container_of(drv, struct usbdrv_wrap, driver)-> 108 for_devices; 109 } 110 111 /* Interfaces and their "power state" are owned by usbcore */ 112 113 static inline void mark_active(struct usb_interface *f) 114 { 115 f->is_active = 1; 116 f->dev.power.power_state.event = PM_EVENT_ON; 117 } 118 119 static inline void mark_quiesced(struct usb_interface *f) 120 { 121 f->is_active = 0; 122 f->dev.power.power_state.event = PM_EVENT_SUSPEND; 123 } 124 125 static inline int is_active(const struct usb_interface *f) 126 { 127 return f->is_active; 128 } 129 130 131 /* for labeling diagnostics */ 132 extern const char *usbcore_name; 133 134 /* usbfs stuff */ 135 extern struct mutex usbfs_mutex; 136 extern struct usb_driver usbfs_driver; 137 extern const struct file_operations usbfs_devices_fops; 138 extern const struct file_operations usbdev_file_operations; 139 extern void usbfs_conn_disc_event(void); 140 141 extern int usb_devio_init(void); 142 extern void usb_devio_cleanup(void); 143 144 struct dev_state { 145 struct list_head list; /* state list */ 146 struct usb_device *dev; 147 struct file *file; 148 spinlock_t lock; /* protects the async urb lists */ 149 struct list_head async_pending; 150 struct list_head async_completed; 151 wait_queue_head_t wait; /* wake up if a request completed */ 152 unsigned int discsignr; 153 struct pid *disc_pid; 154 uid_t disc_uid, disc_euid; 155 void __user *disccontext; 156 unsigned long ifclaimed; 157 u32 secid; 158 }; 159 160 /* internal notify stuff */ 161 extern void usb_notify_add_device(struct usb_device *udev); 162 extern void usb_notify_remove_device(struct usb_device *udev); 163 extern void usb_notify_add_bus(struct usb_bus *ubus); 164 extern void usb_notify_remove_bus(struct usb_bus *ubus); 165 166