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_files(struct device *parent,
  10                                 struct usb_host_endpoint *endpoint,
  11                                 struct usb_device *udev);
  12 extern void usb_remove_ep_files(struct usb_host_endpoint *endpoint);
  13
  14 extern void usb_enable_endpoint(struct usb_device *dev,
  15                 struct usb_host_endpoint *ep);
  16 extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr);
  17 extern void usb_disable_interface(struct usb_device *dev,
  18                 struct usb_interface *intf);
  19 extern void usb_release_interface_cache(struct kref *ref);
  20 extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
  21 extern int usb_deauthorize_device(struct usb_device *);
  22 extern int usb_authorize_device(struct usb_device *);
  23 extern void usb_detect_quirks(struct usb_device *udev);
  24
  25 extern int usb_get_device_descriptor(struct usb_device *dev,
  26                 unsigned int size);
  27 extern char *usb_cache_string(struct usb_device *udev, int index);
  28 extern int usb_set_configuration(struct usb_device *dev, int configuration);
  29 extern int usb_choose_configuration(struct usb_device *udev);
  30
  31 extern void usb_kick_khubd(struct usb_device *dev);
  32 extern int usb_match_device(struct usb_device *dev,
  33                             const struct usb_device_id *id);
  34 extern void usb_forced_unbind_intf(struct usb_interface *intf);
  35 extern void usb_rebind_intf(struct usb_interface *intf);
  36
  37 extern int  usb_hub_init(void);
  38 extern void usb_hub_cleanup(void);
  39 extern int usb_major_init(void);
  40 extern void usb_major_cleanup(void);
  41 extern int usb_host_init(void);
  42 extern void usb_host_cleanup(void);
  43
  44 #ifdef  CONFIG_PM
  45
  46 extern int usb_suspend(struct device *dev, pm_message_t msg);
  47 extern int usb_resume(struct device *dev, pm_message_t msg);
  48
  49 extern void usb_autosuspend_work(struct work_struct *work);
  50 extern void usb_autoresume_work(struct work_struct *work);
  51 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  52 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  53 extern int usb_external_suspend_device(struct usb_device *udev,
  54                 pm_message_t msg);
  55 extern int usb_external_resume_device(struct usb_device *udev,
  56                 pm_message_t msg);
  57
  58 static inline void usb_pm_lock(struct usb_device *udev)
  59 {
  60         mutex_lock_nested(&udev->pm_mutex, udev->level);
  61 }
  62
  63 static inline void usb_pm_unlock(struct usb_device *udev)
  64 {
  65         mutex_unlock(&udev->pm_mutex);
  66 }
  67
  68 #else
  69
  70 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  71 {
  72         return 0;
  73 }
  74
  75 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  76 {
  77         return 0;
  78 }
  79
  80 static inline void usb_pm_lock(struct usb_device *udev) {}
  81 static inline void usb_pm_unlock(struct usb_device *udev) {}
  82
  83 #endif
  84
  85 #ifdef CONFIG_USB_SUSPEND
  86
  87 extern void usb_autosuspend_device(struct usb_device *udev);
  88 extern void usb_try_autosuspend_device(struct usb_device *udev);
  89 extern int usb_autoresume_device(struct usb_device *udev);
  90
  91 #else
  92
  93 #define usb_autosuspend_device(udev)            do {} while (0)
  94 #define usb_try_autosuspend_device(udev)        do {} while (0)
  95 static inline int usb_autoresume_device(struct usb_device *udev)
  96 {
  97         return 0;
  98 }
  99
 100 #endif
 101
 102 extern struct workqueue_struct *ksuspend_usb_wq;
 103 extern struct bus_type usb_bus_type;
 104 extern struct device_type usb_device_type;
 105 extern struct device_type usb_if_device_type;
 106 extern struct usb_device_driver usb_generic_driver;
 107
 108 static inline int is_usb_device(const struct device *dev)
 109 {
 110         return dev->type == &usb_device_type;
 111 }
 112
 113 /* Do the same for device drivers and interface drivers. */
 114
 115 static inline int is_usb_device_driver(struct device_driver *drv)
 116 {
 117         return container_of(drv, struct usbdrv_wrap, driver)->
 118                         for_devices;
 119 }
 120
 121 /* Interfaces and their "power state" are owned by usbcore */
 122
 123 static inline void mark_active(struct usb_interface *f)
 124 {
 125         f->is_active = 1;
 126 }
 127
 128 static inline void mark_quiesced(struct usb_interface *f)
 129 {
 130         f->is_active = 0;
 131 }
 132
 133 static inline int is_active(const struct usb_interface *f)
 134 {
 135         return f->is_active;
 136 }
 137
 138
 139 /* for labeling diagnostics */
 140 extern const char *usbcore_name;
 141
 142 /* sysfs stuff */
 143 extern struct attribute_group *usb_device_groups[];
 144 extern struct attribute_group *usb_interface_groups[];
 145
 146 /* usbfs stuff */
 147 extern struct mutex usbfs_mutex;
 148 extern struct usb_driver usbfs_driver;
 149 extern const struct file_operations usbfs_devices_fops;
 150 extern const struct file_operations usbdev_file_operations;
 151 extern void usbfs_conn_disc_event(void);
 152 extern void usb_fs_classdev_common_remove(struct usb_device *udev);
 153
 154 extern int usb_devio_init(void);
 155 extern void usb_devio_cleanup(void);
 156
 157 /* internal notify stuff */
 158 extern void usb_notify_add_device(struct usb_device *udev);
 159 extern void usb_notify_remove_device(struct usb_device *udev);
 160 extern void usb_notify_add_bus(struct usb_bus *ubus);
 161 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 162