drivers/usb/core/usb.h

   1 #include <linux/pm.h>
   2
   3 /* Functions local to drivers/usb/core/ */
   4
   5 extern int usb_create_sysfs_dev_files(struct usb_device *dev);
   6 extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
   7 extern void usb_create_sysfs_intf_files(struct usb_interface *intf);
   8 extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
   9 extern int usb_create_ep_devs(struct device *parent,
  10                                 struct usb_host_endpoint *endpoint,
  11                                 struct usb_device *udev);
  12 extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
  13
  14 extern void usb_enable_endpoint(struct usb_device *dev,
  15                 struct usb_host_endpoint *ep, bool reset_toggle);
  16 extern void usb_enable_interface(struct usb_device *dev,
  17                 struct usb_interface *intf, bool reset_toggles);
  18 extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
  19                 bool reset_hardware);
  20 extern void usb_disable_interface(struct usb_device *dev,
  21                 struct usb_interface *intf, bool reset_hardware);
  22 extern void usb_release_interface_cache(struct kref *ref);
  23 extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
  24 extern int usb_deauthorize_device(struct usb_device *);
  25 extern int usb_authorize_device(struct usb_device *);
  26 extern void usb_detect_quirks(struct usb_device *udev);
  27 extern int usb_remove_device(struct usb_device *udev);
  28
  29 extern int usb_get_device_descriptor(struct usb_device *dev,
  30                 unsigned int size);
  31 extern char *usb_cache_string(struct usb_device *udev, int index);
  32 extern int usb_set_configuration(struct usb_device *dev, int configuration);
  33 extern int usb_choose_configuration(struct usb_device *udev);
  34
  35 extern void usb_kick_khubd(struct usb_device *dev);
  36 extern int usb_match_device(struct usb_device *dev,
  37                             const struct usb_device_id *id);
  38 extern void usb_forced_unbind_intf(struct usb_interface *intf);
  39 extern void usb_rebind_intf(struct usb_interface *intf);
  40
  41 extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
  42                 void *owner);
  43 extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
  44                 void *owner);
  45 extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner);
  46 extern bool usb_device_is_owned(struct usb_device *udev);
  47
  48 extern int  usb_hub_init(void);
  49 extern void usb_hub_cleanup(void);
  50 extern int usb_major_init(void);
  51 extern void usb_major_cleanup(void);
  52
  53 #ifdef  CONFIG_PM
  54
  55 extern int usb_suspend(struct device *dev, pm_message_t msg);
  56 extern int usb_resume(struct device *dev, pm_message_t msg);
  57
  58 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  59 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  60
  61 #else
  62
  63 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  64 {
  65         return 0;
  66 }
  67
  68 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  69 {
  70         return 0;
  71 }
  72
  73 #endif
  74
  75 #ifdef CONFIG_USB_SUSPEND
  76
  77 extern void usb_autosuspend_device(struct usb_device *udev);
  78 extern int usb_autoresume_device(struct usb_device *udev);
  79 extern int usb_remote_wakeup(struct usb_device *dev);
  80 extern int usb_runtime_suspend(struct device *dev);
  81 extern int usb_runtime_resume(struct device *dev);
  82 extern int usb_runtime_idle(struct device *dev);
  83
  84 #else
  85
  86 #define usb_autosuspend_device(udev)            do {} while (0)
  87 static inline int usb_autoresume_device(struct usb_device *udev)
  88 {
  89         return 0;
  90 }
  91
  92 static inline int usb_remote_wakeup(struct usb_device *udev)
  93 {
  94         return 0;
  95 }
  96
  97 #endif
  98
  99 extern struct bus_type usb_bus_type;
 100 extern struct device_type usb_device_type;
 101 extern struct device_type usb_if_device_type;
 102 extern struct device_type usb_ep_device_type;
 103 extern struct usb_device_driver usb_generic_driver;
 104
 105 static inline int is_usb_device(const struct device *dev)
 106 {
 107         return dev->type == &usb_device_type;
 108 }
 109
 110 static inline int is_usb_interface(const struct device *dev)
 111 {
 112         return dev->type == &usb_if_device_type;
 113 }
 114
 115 static inline int is_usb_endpoint(const struct device *dev)
 116 {
 117         return dev->type == &usb_ep_device_type;
 118 }
 119
 120 /* Do the same for device drivers and interface drivers. */
 121
 122 static inline int is_usb_device_driver(struct device_driver *drv)
 123 {
 124         return container_of(drv, struct usbdrv_wrap, driver)->
 125                         for_devices;
 126 }
 127
 128 /* translate USB error codes to codes user space understands */
 129 static inline int usb_translate_errors(int error_code)
 130 {
 131         switch (error_code) {
 132         case 0:
 133         case -ENOMEM:
 134         case -ENODEV:
 135                 return error_code;
 136         default:
 137                 return -EIO;
 138         }
 139 }
 140
 141
 142 /* for labeling diagnostics */
 143 extern const char *usbcore_name;
 144
 145 /* sysfs stuff */
 146 extern const struct attribute_group *usb_device_groups[];
 147 extern const struct attribute_group *usb_interface_groups[];
 148
 149 /* usbfs stuff */
 150 extern struct mutex usbfs_mutex;
 151 extern struct usb_driver usbfs_driver;
 152 extern const struct file_operations usbfs_devices_fops;
 153 extern const struct file_operations usbdev_file_operations;
 154 extern void usbfs_conn_disc_event(void);
 155
 156 extern int usb_devio_init(void);
 157 extern void usb_devio_cleanup(void);
 158
 159 /* internal notify stuff */
 160 extern void usb_notify_add_device(struct usb_device *udev);
 161 extern void usb_notify_remove_device(struct usb_device *udev);
 162 extern void usb_notify_add_bus(struct usb_bus *ubus);
 163 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 164