drivers/usb/core/usb.h

   1 /* Functions local to drivers/usb/core/ */
   2
   3 extern void usb_create_sysfs_dev_files (struct usb_device *dev);
   4 extern void usb_remove_sysfs_dev_files (struct usb_device *dev);
   5 extern void usb_create_sysfs_intf_files (struct usb_interface *intf);
   6 extern void usb_remove_sysfs_intf_files (struct usb_interface *intf);
   7 extern void 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
  17 extern int usb_get_device_descriptor(struct usb_device *dev,
  18                 unsigned int size);
  19 extern char *usb_cache_string(struct usb_device *udev, int index);
  20 extern int usb_set_configuration(struct usb_device *dev, int configuration);
  21
  22 extern void usb_kick_khubd(struct usb_device *dev);
  23 extern void usb_suspend_root_hub(struct usb_device *hdev);
  24 extern void usb_resume_root_hub(struct usb_device *dev);
  25
  26 extern int  usb_hub_init(void);
  27 extern void usb_hub_cleanup(void);
  28 extern int usb_major_init(void);
  29 extern void usb_major_cleanup(void);
  30 extern int usb_host_init(void);
  31 extern void usb_host_cleanup(void);
  32
  33 #ifdef  CONFIG_PM
  34
  35 extern int usb_suspend_both(struct usb_device *udev, pm_message_t msg);
  36 extern int usb_resume_both(struct usb_device *udev);
  37 extern int usb_port_suspend(struct usb_device *dev);
  38 extern int usb_port_resume(struct usb_device *dev);
  39
  40 #else
  41
  42 #define usb_suspend_both(udev, msg)     0
  43 #define usb_resume_both(udev)           0
  44 #define usb_port_suspend(dev)           0
  45 #define usb_port_resume(dev)            0
  46
  47 #endif
  48
  49 extern struct bus_type usb_bus_type;
  50 extern struct usb_device_driver usb_generic_driver;
  51
  52 /* Here's how we tell apart devices and interfaces.  Luckily there's
  53  * no such thing as a platform USB device, so we can steal the use
  54  * of the platform_data field. */
  55
  56 static inline int is_usb_device(struct device *dev)
  57 {
  58         return dev->platform_data == &usb_generic_driver;
  59 }
  60
  61 /* Do the same for device drivers and interface drivers. */
  62
  63 static inline int is_usb_device_driver(struct device_driver *drv)
  64 {
  65         return container_of(drv, struct usbdrv_wrap, driver)->
  66                         for_devices;
  67 }
  68
  69 /* Interfaces and their "power state" are owned by usbcore */
  70
  71 static inline void mark_active(struct usb_interface *f)
  72 {
  73         f->is_active = 1;
  74 }
  75
  76 static inline void mark_quiesced(struct usb_interface *f)
  77 {
  78         f->is_active = 0;
  79 }
  80
  81 static inline int is_active(struct usb_interface *f)
  82 {
  83         return f->is_active;
  84 }
  85
  86
  87 /* for labeling diagnostics */
  88 extern const char *usbcore_name;
  89
  90 /* usbfs stuff */
  91 extern struct mutex usbfs_mutex;
  92 extern struct usb_driver usbfs_driver;
  93 extern struct file_operations usbfs_devices_fops;
  94 extern struct file_operations usbfs_device_file_operations;
  95 extern void usbfs_conn_disc_event(void);
  96
  97 extern int usbdev_init(void);
  98 extern void usbdev_cleanup(void);
  99
 100 struct dev_state {
 101         struct list_head list;      /* state list */
 102         struct usb_device *dev;
 103         struct file *file;
 104         spinlock_t lock;            /* protects the async urb lists */
 105         struct list_head async_pending;
 106         struct list_head async_completed;
 107         wait_queue_head_t wait;     /* wake up if a request completed */
 108         unsigned int discsignr;
 109         pid_t disc_pid;
 110         uid_t disc_uid, disc_euid;
 111         void __user *disccontext;
 112         unsigned long ifclaimed;
 113         u32 secid;
 114 };
 115
 116 /* internal notify stuff */
 117 extern void usb_notify_add_device(struct usb_device *udev);
 118 extern void usb_notify_remove_device(struct usb_device *udev);
 119 extern void usb_notify_add_bus(struct usb_bus *ubus);
 120 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 121