diff options
Diffstat (limited to 'drivers/usb/core/usb.h')
| -rw-r--r-- | drivers/usb/core/usb.h | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h new file mode 100644 index 000000000..c0df5a468 --- /dev/null +++ b/drivers/usb/core/usb.h @@ -0,0 +1,206 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Released under the GPLv2 only. + */ + +#include <linux/pm.h> +#include <linux/acpi.h> + +struct usb_hub_descriptor; +struct usb_dev_state; + +/* Functions local to drivers/usb/core/ */ + +extern int usb_create_sysfs_dev_files(struct usb_device *dev); +extern void usb_remove_sysfs_dev_files(struct usb_device *dev); +extern void usb_create_sysfs_intf_files(struct usb_interface *intf); +extern void usb_remove_sysfs_intf_files(struct usb_interface *intf); +extern int usb_create_ep_devs(struct device *parent, + struct usb_host_endpoint *endpoint, + struct usb_device *udev); +extern void usb_remove_ep_devs(struct usb_host_endpoint *endpoint); + +extern void usb_enable_endpoint(struct usb_device *dev, + struct usb_host_endpoint *ep, bool reset_toggle); +extern void usb_enable_interface(struct usb_device *dev, + struct usb_interface *intf, bool reset_toggles); +extern void usb_disable_endpoint(struct usb_device *dev, unsigned int epaddr, + bool reset_hardware); +extern void usb_disable_interface(struct usb_device *dev, + struct usb_interface *intf, bool reset_hardware); +extern void usb_release_interface_cache(struct kref *ref); +extern void usb_disable_device(struct usb_device *dev, int skip_ep0); +extern int usb_deauthorize_device(struct usb_device *); +extern int usb_authorize_device(struct usb_device *); +extern void usb_deauthorize_interface(struct usb_interface *); +extern void usb_authorize_interface(struct usb_interface *); +extern void usb_detect_quirks(struct usb_device *udev); +extern void usb_detect_interface_quirks(struct usb_device *udev); +extern void usb_release_quirk_list(void); +extern bool usb_endpoint_is_blacklisted(struct usb_device *udev, + struct usb_host_interface *intf, + struct usb_endpoint_descriptor *epd); +extern int usb_remove_device(struct usb_device *udev); + +extern int usb_get_device_descriptor(struct usb_device *dev, + unsigned int size); +extern int usb_set_isoch_delay(struct usb_device *dev); +extern int usb_get_bos_descriptor(struct usb_device *dev); +extern void usb_release_bos_descriptor(struct usb_device *dev); +extern char *usb_cache_string(struct usb_device *udev, int index); +extern int usb_set_configuration(struct usb_device *dev, int configuration); +extern int usb_choose_configuration(struct usb_device *udev); + +static inline unsigned usb_get_max_power(struct usb_device *udev, + struct usb_host_config *c) +{ + /* SuperSpeed power is in 8 mA units; others are in 2 mA units */ + unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2); + + return c->desc.bMaxPower * mul; +} + +extern void usb_kick_hub_wq(struct usb_device *dev); +extern int usb_match_one_id_intf(struct usb_device *dev, + struct usb_host_interface *intf, + const struct usb_device_id *id); +extern int usb_match_device(struct usb_device *dev, + const struct usb_device_id *id); +extern void usb_forced_unbind_intf(struct usb_interface *intf); +extern void usb_unbind_and_rebind_marked_interfaces(struct usb_device *udev); + +extern void usb_hub_release_all_ports(struct usb_device *hdev, + struct usb_dev_state *owner); +extern bool usb_device_is_owned(struct usb_device *udev); + +extern int usb_hub_init(void); +extern void usb_hub_cleanup(void); +extern int usb_major_init(void); +extern void usb_major_cleanup(void); +extern int usb_device_supports_lpm(struct usb_device *udev); +extern int usb_port_disable(struct usb_device *udev); + +#ifdef CONFIG_PM + +extern int usb_suspend(struct device *dev, pm_message_t msg); +extern int usb_resume(struct device *dev, pm_message_t msg); +extern int usb_resume_complete(struct device *dev); + +extern int usb_port_suspend(struct usb_device *dev, pm_message_t msg); +extern int usb_port_resume(struct usb_device *dev, pm_message_t msg); + +extern void usb_autosuspend_device(struct usb_device *udev); +extern int usb_autoresume_device(struct usb_device *udev); +extern int usb_remote_wakeup(struct usb_device *dev); +extern int usb_runtime_suspend(struct device *dev); +extern int usb_runtime_resume(struct device *dev); +extern int usb_runtime_idle(struct device *dev); +extern int usb_enable_usb2_hardware_lpm(struct usb_device *udev); +extern int usb_disable_usb2_hardware_lpm(struct usb_device *udev); + +#else + +static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) +{ + return 0; +} + +static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) +{ + return 0; +} + +#define usb_autosuspend_device(udev) do {} while (0) +static inline int usb_autoresume_device(struct usb_device *udev) +{ + return 0; +} + +static inline int usb_enable_usb2_hardware_lpm(struct usb_device *udev) +{ + return 0; +} + +static inline int usb_disable_usb2_hardware_lpm(struct usb_device *udev) +{ + return 0; +} + +#endif + +extern struct bus_type usb_bus_type; +extern struct mutex usb_port_peer_mutex; +extern struct device_type usb_device_type; +extern struct device_type usb_if_device_type; +extern struct device_type usb_ep_device_type; +extern struct device_type usb_port_device_type; +extern struct usb_device_driver usb_generic_driver; + +static inline int is_usb_device(const struct device *dev) +{ + return dev->type == &usb_device_type; +} + +static inline int is_usb_interface(const struct device *dev) +{ + return dev->type == &usb_if_device_type; +} + +static inline int is_usb_endpoint(const struct device *dev) +{ + return dev->type == &usb_ep_device_type; +} + +static inline int is_usb_port(const struct device *dev) +{ + return dev->type == &usb_port_device_type; +} + +/* Do the same for device drivers and interface drivers. */ + +static inline int is_usb_device_driver(struct device_driver *drv) +{ + return container_of(drv, struct usbdrv_wrap, driver)-> + for_devices; +} + +/* for labeling diagnostics */ +extern const char *usbcore_name; + +/* sysfs stuff */ +extern const struct attribute_group *usb_device_groups[]; +extern const struct attribute_group *usb_interface_groups[]; + +/* usbfs stuff */ +extern struct mutex usbfs_mutex; +extern struct usb_driver usbfs_driver; +extern const struct file_operations usbfs_devices_fops; +extern const struct file_operations usbdev_file_operations; +extern void usbfs_conn_disc_event(void); + +extern int usb_devio_init(void); +extern void usb_devio_cleanup(void); + +/* + * Firmware specific cookie identifying a port's location. '0' == no location + * data available + */ +typedef u32 usb_port_location_t; + +/* internal notify stuff */ +extern void usb_notify_add_device(struct usb_device *udev); +extern void usb_notify_remove_device(struct usb_device *udev); +extern void usb_notify_add_bus(struct usb_bus *ubus); +extern void usb_notify_remove_bus(struct usb_bus *ubus); +extern void usb_hub_adjust_deviceremovable(struct usb_device *hdev, + struct usb_hub_descriptor *desc); + +#ifdef CONFIG_ACPI +extern int usb_acpi_register(void); +extern void usb_acpi_unregister(void); +extern acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev, + int port1); +#else +static inline int usb_acpi_register(void) { return 0; }; +static inline void usb_acpi_unregister(void) { }; +#endif |