drivers/usb/core/usb.h

   1 #include <linux/pm.h>
   2 #include <linux/acpi.h>
   3
   4 struct dev_state;
   5
   6 /* Functions local to drivers/usb/core/ */
   7
   8 extern int usb_create_sysfs_dev_files(struct usb_device *dev);
   9 extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
  10 extern void usb_create_sysfs_intf_files(struct usb_interface *intf);
  11 extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
  12 extern int usb_create_ep_devs(struct device *parent,
  13                                 struct usb_host_endpoint *endpoint,
  14                                 struct usb_device *udev);
  15 extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
  16
  17 extern void usb_enable_endpoint(struct usb_device *dev,
  18                 struct usb_host_endpoint *ep, bool reset_toggle);
  19 extern void usb_enable_interface(struct usb_device *dev,
  20                 struct usb_interface *intf, bool reset_toggles);
  21 extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
  22                 bool reset_hardware);
  23 extern void usb_disable_interface(struct usb_device *dev,
  24                 struct usb_interface *intf, bool reset_hardware);
  25 extern void usb_release_interface_cache(struct kref *ref);
  26 extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
  27 extern int usb_deauthorize_device(struct usb_device *);
  28 extern int usb_authorize_device(struct usb_device *);
  29 extern void usb_detect_quirks(struct usb_device *udev);
  30 extern void usb_detect_interface_quirks(struct usb_device *udev);
  31 extern int usb_remove_device(struct usb_device *udev);
  32
  33 extern int usb_get_device_descriptor(struct usb_device *dev,
  34                 unsigned int size);
  35 extern int usb_get_bos_descriptor(struct usb_device *dev);
  36 extern void usb_release_bos_descriptor(struct usb_device *dev);
  37 extern char *usb_cache_string(struct usb_device *udev, int index);
  38 extern int usb_set_configuration(struct usb_device *dev, int configuration);
  39 extern int usb_choose_configuration(struct usb_device *udev);
  40
  41 extern void usb_kick_khubd(struct usb_device *dev);
  42 extern int usb_match_one_id_intf(struct usb_device *dev,
  43                                  struct usb_host_interface *intf,
  44                                  const struct usb_device_id *id);
  45 extern int usb_match_device(struct usb_device *dev,
  46                             const struct usb_device_id *id);
  47 extern void usb_forced_unbind_intf(struct usb_interface *intf);
  48 extern void usb_rebind_intf(struct usb_interface *intf);
  49
  50 extern int usb_hub_claim_port(struct usb_device *hdev, unsigned port,
  51                 struct dev_state *owner);
  52 extern int usb_hub_release_port(struct usb_device *hdev, unsigned port,
  53                 struct dev_state *owner);
  54 extern void usb_hub_release_all_ports(struct usb_device *hdev,
  55                 struct dev_state *owner);
  56 extern bool usb_device_is_owned(struct usb_device *udev);
  57
  58 extern int  usb_hub_init(void);
  59 extern void usb_hub_cleanup(void);
  60 extern int usb_major_init(void);
  61 extern void usb_major_cleanup(void);
  62
  63 #ifdef  CONFIG_PM
  64
  65 extern int usb_suspend(struct device *dev, pm_message_t msg);
  66 extern int usb_resume(struct device *dev, pm_message_t msg);
  67 extern int usb_resume_complete(struct device *dev);
  68
  69 extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  70 extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  71
  72 #else
  73
  74 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  75 {
  76         return 0;
  77 }
  78
  79 static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  80 {
  81         return 0;
  82 }
  83
  84 #endif
  85
  86 #ifdef CONFIG_USB_SUSPEND
  87
  88 extern void usb_autosuspend_device(struct usb_device *udev);
  89 extern int usb_autoresume_device(struct usb_device *udev);
  90 extern int usb_remote_wakeup(struct usb_device *dev);
  91 extern int usb_runtime_suspend(struct device *dev);
  92 extern int usb_runtime_resume(struct device *dev);
  93 extern int usb_runtime_idle(struct device *dev);
  94 extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
  95
  96 #else
  97
  98 #define usb_autosuspend_device(udev)            do {} while (0)
  99 static inline int usb_autoresume_device(struct usb_device *udev)
 100 {
 101         return 0;
 102 }
 103
 104 static inline int usb_remote_wakeup(struct usb_device *udev)
 105 {
 106         return 0;
 107 }
 108
 109 static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
 110 {
 111         return 0;
 112 }
 113 #endif
 114
 115 extern struct bus_type usb_bus_type;
 116 extern struct device_type usb_device_type;
 117 extern struct device_type usb_if_device_type;
 118 extern struct device_type usb_ep_device_type;
 119 extern struct device_type usb_port_device_type;
 120 extern struct usb_device_driver usb_generic_driver;
 121
 122 static inline int is_usb_device(const struct device *dev)
 123 {
 124         return dev->type == &usb_device_type;
 125 }
 126
 127 static inline int is_usb_interface(const struct device *dev)
 128 {
 129         return dev->type == &usb_if_device_type;
 130 }
 131
 132 static inline int is_usb_endpoint(const struct device *dev)
 133 {
 134         return dev->type == &usb_ep_device_type;
 135 }
 136
 137 static inline int is_usb_port(const struct device *dev)
 138 {
 139         return dev->type == &usb_port_device_type;
 140 }
 141
 142 /* Do the same for device drivers and interface drivers. */
 143
 144 static inline int is_usb_device_driver(struct device_driver *drv)
 145 {
 146         return container_of(drv, struct usbdrv_wrap, driver)->
 147                         for_devices;
 148 }
 149
 150 /* for labeling diagnostics */
 151 extern const char *usbcore_name;
 152
 153 /* sysfs stuff */
 154 extern const struct attribute_group *usb_device_groups[];
 155 extern const struct attribute_group *usb_interface_groups[];
 156
 157 /* usbfs stuff */
 158 extern struct mutex usbfs_mutex;
 159 extern struct usb_driver usbfs_driver;
 160 extern const struct file_operations usbfs_devices_fops;
 161 extern const struct file_operations usbdev_file_operations;
 162 extern void usbfs_conn_disc_event(void);
 163
 164 extern int usb_devio_init(void);
 165 extern void usb_devio_cleanup(void);
 166
 167 /* internal notify stuff */
 168 extern void usb_notify_add_device(struct usb_device *udev);
 169 extern void usb_notify_remove_device(struct usb_device *udev);
 170 extern void usb_notify_add_bus(struct usb_bus *ubus);
 171 extern void usb_notify_remove_bus(struct usb_bus *ubus);
 172
 173 #ifdef CONFIG_ACPI
 174 extern int usb_acpi_register(void);
 175 extern void usb_acpi_unregister(void);
 176 extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
 177         int port1);
 178 #else
 179 static inline int usb_acpi_register(void) { return 0; };
 180 static inline void usb_acpi_unregister(void) { };
 181 #endif