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 int 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 void usb_autosuspend_work(struct work_struct *work);
  59 extern void usb_autoresume_work(struct work_struct *work);
  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 extern int usb_external_suspend_device(struct usb_device *udev,
  63                 pm_message_t msg);
  64 extern int usb_external_resume_device(struct usb_device *udev,
  65                 pm_message_t msg);
  66
  67 static inline void usb_pm_lock(struct usb_device *udev)
  68 {
  69         mutex_lock_nested(&udev->pm_mutex, udev->level);
  70 }
  71
  72 static inline void usb_pm_unlock(struct usb_device *udev)
  73 {
  74         mutex_unlock(&udev->pm_mutex);
  75 }
  76
  77 #else
  78
  79 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  80 {
  81         return 0;
  82 }
  83
  84 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  85 {
  86         return 0;
  87 }
  88
  89 static inline void usb_pm_lock(struct usb_device *udev) {}
  90 static inline void usb_pm_unlock(struct usb_device *udev) {}
  91
  92 #endif
  93
  94 #ifdef CONFIG_USB_SUSPEND
  95
  96 extern void usb_autosuspend_device(struct usb_device *udev);
  97 extern void usb_try_autosuspend_device(struct usb_device *udev);
  98 extern int usb_autoresume_device(struct usb_device *udev);
  99
 100 #else
 101
 102 #define usb_autosuspend_device(udev)            do {} while (0)
 103 #define usb_try_autosuspend_device(udev)        do {} while (0)
 104 static inline int usb_autoresume_device(struct usb_device *udev)
 105 {
 106         return 0;
 107 }
 108
 109 #endif
 110
 111 extern struct workqueue_struct *ksuspend_usb_wq;
 112 extern struct bus_type usb_bus_type;
 113 extern struct device_type usb_device_type;
 114 extern struct device_type usb_if_device_type;
 115 extern struct device_type usb_ep_device_type;
 116 extern struct usb_device_driver usb_generic_driver;
 117
 118 static inline int is_usb_device(const struct device *dev)
 119 {
 120         return dev->type == &usb_device_type;
 121 }
 122
 123 static inline int is_usb_interface(const struct device *dev)
 124 {
 125         return dev->type == &usb_if_device_type;
 126 }
 127
 128 static inline int is_usb_endpoint(const struct device *dev)
 129 {
 130         return dev->type == &usb_ep_device_type;
 131 }
 132
 133 /* Do the same for device drivers and interface drivers. */
 134
 135 static inline int is_usb_device_driver(struct device_driver *drv)
 136 {
 137         return container_of(drv, struct usbdrv_wrap, driver)->
 138                         for_devices;
 139 }
 140
 141 /* Interfaces and their "power state" are owned by usbcore */
 142
 143 static inline void mark_active(struct usb_interface *f)
 144 {
 145         f->is_active = 1;
 146 }
 147
 148 static inline void mark_quiesced(struct usb_interface *f)
 149 {
 150         f->is_active = 0;
 151 }
 152
 153 static inline int is_active(const struct usb_interface *f)
 154 {
 155         return f->is_active;
 156 }
 157
 158
 159 /* for labeling diagnostics */
 160 extern const char *usbcore_name;
 161
 162 /* sysfs stuff */
 163 extern const struct attribute_group *usb_device_groups[];
 164 extern const struct attribute_group *usb_interface_groups[];
 165
 166 /* usbfs stuff */
 167 extern struct mutex usbfs_mutex;
 168 extern struct usb_driver usbfs_driver;
 169 extern const struct file_operations usbfs_devices_fops;
 170 extern const struct file_operations usbdev_file_operations;
 171 extern void usbfs_conn_disc_event(void);
 172
 173 extern int usb_devio_init(void);
 174 extern void usb_devio_cleanup(void);
 175
 176 /* internal notify stuff */
 177 extern void usb_notify_add_device(struct usb_device *udev);
 178 extern void usb_notify_remove_device(struct usb_device *udev);
 179 extern void usb_notify_add_bus(struct usb_bus *ubus);
 180 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 181