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 static inline int usb_resume_both(struct usb_device *udev)
  44 {
  45         return 0;
  46 }
  47 #define usb_port_suspend(dev)           0
  48 #define usb_port_resume(dev)            0
  49
  50 #endif
  51
  52 extern struct bus_type usb_bus_type;
  53 extern struct usb_device_driver usb_generic_driver;
  54
  55 /* Here's how we tell apart devices and interfaces.  Luckily there's
  56  * no such thing as a platform USB device, so we can steal the use
  57  * of the platform_data field. */
  58
  59 static inline int is_usb_device(const struct device *dev)
  60 {
  61         return dev->platform_data == &usb_generic_driver;
  62 }
  63
  64 /* Do the same for device drivers and interface drivers. */
  65
  66 static inline int is_usb_device_driver(struct device_driver *drv)
  67 {
  68         return container_of(drv, struct usbdrv_wrap, driver)->
  69                         for_devices;
  70 }
  71
  72 /* Interfaces and their "power state" are owned by usbcore */
  73
  74 static inline void mark_active(struct usb_interface *f)
  75 {
  76         f->is_active = 1;
  77 }
  78
  79 static inline void mark_quiesced(struct usb_interface *f)
  80 {
  81         f->is_active = 0;
  82 }
  83
  84 static inline int is_active(const struct usb_interface *f)
  85 {
  86         return f->is_active;
  87 }
  88
  89
  90 /* for labeling diagnostics */
  91 extern const char *usbcore_name;
  92
  93 /* usbfs stuff */
  94 extern struct mutex usbfs_mutex;
  95 extern struct usb_driver usbfs_driver;
  96 extern const struct file_operations usbfs_devices_fops;
  97 extern const struct file_operations usbfs_device_file_operations;
  98 extern void usbfs_conn_disc_event(void);
  99
 100 extern int usbdev_init(void);
 101 extern void usbdev_cleanup(void);
 102
 103 struct dev_state {
 104         struct list_head list;      /* state list */
 105         struct usb_device *dev;
 106         struct file *file;
 107         spinlock_t lock;            /* protects the async urb lists */
 108         struct list_head async_pending;
 109         struct list_head async_completed;
 110         wait_queue_head_t wait;     /* wake up if a request completed */
 111         unsigned int discsignr;
 112         pid_t disc_pid;
 113         uid_t disc_uid, disc_euid;
 114         void __user *disccontext;
 115         unsigned long ifclaimed;
 116         u32 secid;
 117 };
 118
 119 /* internal notify stuff */
 120 extern void usb_notify_add_device(struct usb_device *udev);
 121 extern void usb_notify_remove_device(struct usb_device *udev);
 122 extern void usb_notify_add_bus(struct usb_bus *ubus);
 123 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 124