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 int usb_get_bos_descriptor(struct usb_device *dev);
  32 extern void usb_release_bos_descriptor(struct usb_device *dev);
  33 extern char *usb_cache_string(struct usb_device *udev, int index);
  34 extern int usb_set_configuration(struct usb_device *dev, int configuration);
  35 extern int usb_choose_configuration(struct usb_device *udev);
  36
  37 extern void usb_kick_khubd(struct usb_device *dev);
  38 extern int usb_match_device(struct usb_device *dev,
  39                             const struct usb_device_id *id);
  40 extern void usb_forced_unbind_intf(struct usb_interface *intf);
  41 extern void usb_rebind_intf(struct usb_interface *intf);
  42
  43 extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
  44                 void *owner);
  45 extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
  46                 void *owner);
  47 extern void usb_hub_release_all_ports(struct usb_device *hdev, void *owner);
  48 extern bool usb_device_is_owned(struct usb_device *udev);
  49
  50 extern int  usb_hub_init(void);
  51 extern void usb_hub_cleanup(void);
  52 extern int usb_major_init(void);
  53 extern void usb_major_cleanup(void);
  54
  55 #ifdef  CONFIG_PM
  56
  57 extern int usb_suspend(struct device *dev, pm_message_t msg);
  58 extern int usb_resume(struct device *dev, pm_message_t msg);
  59
  60 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  61 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  62
  63 #else
  64
  65 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  66 {
  67         return 0;
  68 }
  69
  70 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  71 {
  72         return 0;
  73 }
  74
  75 #endif
  76
  77 #ifdef CONFIG_USB_SUSPEND
  78
  79 extern void usb_autosuspend_device(struct usb_device *udev);
  80 extern int usb_autoresume_device(struct usb_device *udev);
  81 extern int usb_remote_wakeup(struct usb_device *dev);
  82 extern int usb_runtime_suspend(struct device *dev);
  83 extern int usb_runtime_resume(struct device *dev);
  84 extern int usb_runtime_idle(struct device *dev);
  85 extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
  86
  87 #else
  88
  89 #define usb_autosuspend_device(udev)            do {} while (0)
  90 static inline int usb_autoresume_device(struct usb_device *udev)
  91 {
  92         return 0;
  93 }
  94
  95 static inline int usb_remote_wakeup(struct usb_device *udev)
  96 {
  97         return 0;
  98 }
  99
 100 static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
 101 {
 102         return 0;
 103 }
 104 #endif
 105
 106 extern struct bus_type usb_bus_type;
 107 extern struct device_type usb_device_type;
 108 extern struct device_type usb_if_device_type;
 109 extern struct device_type usb_ep_device_type;
 110 extern struct usb_device_driver usb_generic_driver;
 111
 112 static inline int is_usb_device(const struct device *dev)
 113 {
 114         return dev->type == &usb_device_type;
 115 }
 116
 117 static inline int is_usb_interface(const struct device *dev)
 118 {
 119         return dev->type == &usb_if_device_type;
 120 }
 121
 122 static inline int is_usb_endpoint(const struct device *dev)
 123 {
 124         return dev->type == &usb_ep_device_type;
 125 }
 126
 127 /* Do the same for device drivers and interface drivers. */
 128
 129 static inline int is_usb_device_driver(struct device_driver *drv)
 130 {
 131         return container_of(drv, struct usbdrv_wrap, driver)->
 132                         for_devices;
 133 }
 134
 135 /* translate USB error codes to codes user space understands */
 136 static inline int usb_translate_errors(int error_code)
 137 {
 138         switch (error_code) {
 139         case 0:
 140         case -ENOMEM:
 141         case -ENODEV:
 142                 return error_code;
 143         default:
 144                 return -EIO;
 145         }
 146 }
 147
 148
 149 /* for labeling diagnostics */
 150 extern const char *usbcore_name;
 151
 152 /* sysfs stuff */
 153 extern const struct attribute_group *usb_device_groups[];
 154 extern const struct attribute_group *usb_interface_groups[];
 155
 156 /* usbfs stuff */
 157 extern struct mutex usbfs_mutex;
 158 extern struct usb_driver usbfs_driver;
 159 extern const struct file_operations usbfs_devices_fops;
 160 extern const struct file_operations usbdev_file_operations;
 161 extern void usbfs_conn_disc_event(void);
 162
 163 extern int usb_devio_init(void);
 164 extern void usb_devio_cleanup(void);
 165
 166 /* internal notify stuff */
 167 extern void usb_notify_add_device(struct usb_device *udev);
 168 extern void usb_notify_remove_device(struct usb_device *udev);
 169 extern void usb_notify_add_bus(struct usb_bus *ubus);
 170 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 171