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_detect_quirks(struct usb_device *udev);
  31extern void usb_detect_interface_quirks(struct usb_device *udev);
  32extern int usb_remove_device(struct usb_device *udev);
  33
  34extern int usb_get_device_descriptor(struct usb_device *dev,
  35                unsigned int size);
  36extern int usb_get_bos_descriptor(struct usb_device *dev);
  37extern void usb_release_bos_descriptor(struct usb_device *dev);
  38extern char *usb_cache_string(struct usb_device *udev, int index);
  39extern int usb_set_configuration(struct usb_device *dev, int configuration);
  40extern int usb_choose_configuration(struct usb_device *udev);
  41
  42static inline unsigned usb_get_max_power(struct usb_device *udev,
  43                struct usb_host_config *c)
  44{
  45        /* SuperSpeed power is in 8 mA units; others are in 2 mA units */
  46        unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2);
  47
  48        return c->desc.bMaxPower * mul;
  49}
  50
  51extern void usb_kick_hub_wq(struct usb_device *dev);
  52extern int usb_match_one_id_intf(struct usb_device *dev,
  53                                 struct usb_host_interface *intf,
  54                                 const struct usb_device_id *id);
  55extern int usb_match_device(struct usb_device *dev,
  56                            const struct usb_device_id *id);
  57extern void usb_forced_unbind_intf(struct usb_interface *intf);
  58extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev);
  59
  60extern void usb_hub_release_all_ports(struct usb_device *hdev,
  61                struct usb_dev_state *owner);
  62extern bool usb_device_is_owned(struct usb_device *udev);
  63
  64extern int  usb_hub_init(void);
  65extern void usb_hub_cleanup(void);
  66extern int usb_major_init(void);
  67extern void usb_major_cleanup(void);
  68
  69#ifdef  CONFIG_PM
  70
  71extern int usb_suspend(struct device *dev, pm_message_t msg);
  72extern int usb_resume(struct device *dev, pm_message_t msg);
  73extern int usb_resume_complete(struct device *dev);
  74
  75extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg);
  76extern int usb_port_resume(struct usb_device *dev, pm_message_t msg);
  77
  78extern void usb_autosuspend_device(struct usb_device *udev);
  79extern int usb_autoresume_device(struct usb_device *udev);
  80extern int usb_remote_wakeup(struct usb_device *dev);
  81extern int usb_runtime_suspend(struct device *dev);
  82extern int usb_runtime_resume(struct device *dev);
  83extern int usb_runtime_idle(struct device *dev);
  84extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
  85
  86#else
  87
  88static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)
  89{
  90        return 0;
  91}
  92
  93static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg)
  94{
  95        return 0;
  96}
  97
  98#define usb_autosuspend_device(udev)            do {} while (0)
  99static inline int usb_autoresume_device(struct usb_device *udev)
 100{
 101        return 0;
 102}
 103
 104static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
 105{
 106        return 0;
 107}
 108
 109#endif
 110
 111extern struct bus_type usb_bus_type;
 112extern struct mutex usb_port_peer_mutex;
 113extern struct device_type usb_device_type;
 114extern struct device_type usb_if_device_type;
 115extern struct device_type usb_ep_device_type;
 116extern struct device_type usb_port_device_type;
 117extern struct usb_device_driver usb_generic_driver;
 118
 119static inline int is_usb_device(const struct device *dev)
 120{
 121        return dev->type == &usb_device_type;
 122}
 123
 124static inline int is_usb_interface(const struct device *dev)
 125{
 126        return dev->type == &usb_if_device_type;
 127}
 128
 129static inline int is_usb_endpoint(const struct device *dev)
 130{
 131        return dev->type == &usb_ep_device_type;
 132}
 133
 134static inline int is_usb_port(const struct device *dev)
 135{
 136        return dev->type == &usb_port_device_type;
 137}
 138
 139/* Do the same for device drivers and interface drivers. */
 140
 141static inline int is_usb_device_driver(struct device_driver *drv)
 142{
 143        return container_of(drv, struct usbdrv_wrap, driver)->
 144                        for_devices;
 145}
 146
 147/* for labeling diagnostics */
 148extern const char *usbcore_name;
 149
 150/* sysfs stuff */
 151extern const struct attribute_group *usb_device_groups[];
 152extern const struct attribute_group *usb_interface_groups[];
 153
 154/* usbfs stuff */
 155extern struct mutex usbfs_mutex;
 156extern struct usb_driver usbfs_driver;
 157extern const struct file_operations usbfs_devices_fops;
 158extern const struct file_operations usbdev_file_operations;
 159extern void usbfs_conn_disc_event(void);
 160
 161extern int usb_devio_init(void);
 162extern void usb_devio_cleanup(void);
 163
 164/*
 165 * Firmware specific cookie identifying a port's location. '0' == no location
 166 * data available
 167 */
 168typedef u32 usb_port_location_t;
 169
 170/* internal notify stuff */
 171extern void usb_notify_add_device(struct usb_device *udev);
 172extern void usb_notify_remove_device(struct usb_device *udev);
 173extern void usb_notify_add_bus(struct usb_bus *ubus);
 174extern void usb_notify_remove_bus(struct usb_bus *ubus);
 175extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev,
 176                struct usb_hub_descriptor *desc);
 177
 178#ifdef CONFIG_ACPI
 179extern int usb_acpi_register(void);
 180extern void usb_acpi_unregister(void);
 181extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
 182        int port1);
 183#else
 184static inline int usb_acpi_register(void) { return 0; };
 185static inline void usb_acpi_unregister(void) { };
 186#endif
 187