LXR linux/drivers/usb/core/usb.h

   1#include <linux/pm.h>
   2#include <linux/acpi.h>
   3
   4struct usb_hub_descriptor;
   5struct usb_dev_state;
   6
   7/* Functions local to drivers/usb/core/ */
   8
   9extern int usb_create_sysfs_dev_files(struct usb_device *dev);
  10extern void usb_remove_sysfs_dev_files(struct usb_device *dev);
  11extern void usb_create_sysfs_intf_files(struct usb_interface *intf);
  12extern void usb_remove_sysfs_intf_files(struct usb_interface *intf);
  13extern int usb_create_ep_devs(struct device *parent,
  14                                struct usb_host_endpoint *endpoint,
  15                                struct usb_device *udev);
  16extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint);
  17
  18extern void usb_enable_endpoint(struct usb_device *dev,
  19                struct usb_host_endpoint *ep, bool reset_toggle);
  20extern void usb_enable_interface(struct usb_device *dev,
  21                struct usb_interface *intf, bool reset_toggles);
  22extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr,
  23                bool reset_hardware);
  24extern void usb_disable_interface(struct usb_device *dev,
  25                struct usb_interface *intf, bool reset_hardware);
  26extern void usb_release_interface_cache(struct kref *ref);
  27extern void usb_disable_device(struct usb_device *dev, int skip_ep0);
  28extern int usb_deauthorize_device(struct usb_device *);
  29extern int usb_authorize_device(struct usb_device *);
  30extern void usb_deauthorize_interface(struct usb_interface *);
  31extern void usb_authorize_interface(struct usb_interface *);
  32extern void usb_detect_quirks(struct usb_device *udev);
  33extern void usb_detect_interface_quirks(struct usb_device *udev);
  34extern int usb_remove_device(struct usb_device *udev);
  35
  36extern int usb_get_device_descriptor(struct usb_device *dev,
  37                unsigned int size);
  38extern int usb_get_bos_descriptor(struct usb_device *dev);
  39extern void usb_release_bos_descriptor(struct usb_device *dev);
  40extern char *usb_cache_string(struct usb_device *udev, int index);
  41extern int usb_set_configuration(struct usb_device *dev, int configuration);
  42extern int usb_choose_configuration(struct usb_device *udev);
  43
  44static inline unsigned usb_get_max_power(struct usb_device *udev,
  45                struct usb_host_config *c)
  46{
  47        /* SuperSpeed power is in 8 mA units; others are in 2 mA units */
  48        unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2);
  49
  50        return c->desc.bMaxPower * mul;
  51}
  52
  53extern void usb_kick_hub_wq(struct usb_device *dev);
  54extern int usb_match_one_id_intf(struct usb_device *dev,
  55                                 struct usb_host_interface *intf,
  56                                 const struct usb_device_id *id);
  57extern int usb_match_device(struct usb_device *dev,
  58                            const struct usb_device_id *id);
  59extern void usb_forced_unbind_intf(struct usb_interface *intf);
  60extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev);
  61
  62extern void usb_hub_release_all_ports(struct usb_device *hdev,
  63                struct usb_dev_state *owner);
  64extern bool usb_device_is_owned(struct usb_device *udev);
  65
  66extern int  usb_hub_init(void);
  67extern void usb_hub_cleanup(void);
  68extern int usb_major_init(void);
  69extern void usb_major_cleanup(void);
  70extern int usb_device_supports_lpm(struct usb_device *udev);
  71
  72#ifdef  CONFIG_PM
  73
  74extern int usb_suspend(struct device *dev, pm_message_t msg);
  75extern int usb_resume(struct device *dev, pm_message_t msg);
  76extern int usb_resume_complete(struct device *dev);
  77
  78extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  79extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  80
  81extern void usb_autosuspend_device(struct usb_device *udev);
  82extern int usb_autoresume_device(struct usb_device *udev);
  83extern int usb_remote_wakeup(struct usb_device *dev);
  84extern int usb_runtime_suspend(struct device *dev);
  85extern int usb_runtime_resume(struct device *dev);
  86extern int usb_runtime_idle(struct device *dev);
  87extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
  88
  89#else
  90
  91static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  92{
  93        return 0;
  94}
  95
  96static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  97{
  98        return 0;
  99}
 100
 101#define usb_autosuspend_device(udev)            do {} while (0)
 102static inline int usb_autoresume_device(struct usb_device *udev)
 103{
 104        return 0;
 105}
 106
 107static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
 108{
 109        return 0;
 110}
 111
 112#endif
 113
 114extern struct bus_type usb_bus_type;
 115extern struct mutex usb_port_peer_mutex;
 116extern struct device_type usb_device_type;
 117extern struct device_type usb_if_device_type;
 118extern struct device_type usb_ep_device_type;
 119extern struct device_type usb_port_device_type;
 120extern struct usb_device_driver usb_generic_driver;
 121
 122static inline int is_usb_device(const struct device *dev)
 123{
 124        return dev->type == &usb_device_type;
 125}
 126
 127static inline int is_usb_interface(const struct device *dev)
 128{
 129        return dev->type == &usb_if_device_type;
 130}
 131
 132static inline int is_usb_endpoint(const struct device *dev)
 133{
 134        return dev->type == &usb_ep_device_type;
 135}
 136
 137static 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
 144static 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 */
 151extern const char *usbcore_name;
 152
 153/* sysfs stuff */
 154extern const struct attribute_group *usb_device_groups[];
 155extern const struct attribute_group *usb_interface_groups[];
 156
 157/* usbfs stuff */
 158extern struct mutex usbfs_mutex;
 159extern struct usb_driver usbfs_driver;
 160extern const struct file_operations usbfs_devices_fops;
 161extern const struct file_operations usbdev_file_operations;
 162extern void usbfs_conn_disc_event(void);
 163
 164extern int usb_devio_init(void);
 165extern void usb_devio_cleanup(void);
 166
 167/*
 168 * Firmware specific cookie identifying a port's location. '0' == no location
 169 * data available
 170 */
 171typedef u32 usb_port_location_t;
 172
 173/* internal notify stuff */
 174extern void usb_notify_add_device(struct usb_device *udev);
 175extern void usb_notify_remove_device(struct usb_device *udev);
 176extern void usb_notify_add_bus(struct usb_bus *ubus);
 177extern void usb_notify_remove_bus(struct usb_bus *ubus);
 178extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
 179                struct usb_hub_descriptor *desc);
 180
 181#ifdef CONFIG_ACPI
 182extern int usb_acpi_register(void);
 183extern void usb_acpi_unregister(void);
 184extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
 185        int port1);
 186#else
 187static inline int usb_acpi_register(void) { return 0; };
 188static inline void usb_acpi_unregister(void) { };
 189#endif
 190