diff options
Diffstat (limited to 'drivers/usb/core/usb.h')
| -rw-r--r-- | drivers/usb/core/usb.h | 192 |
1 files changed, 148 insertions, 44 deletions
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h index 1c4a68499dc..d9d08720c38 100644 --- a/drivers/usb/core/usb.h +++ b/drivers/usb/core/usb.h @@ -1,87 +1,191 @@ -/* Functions local to drivers/usb/core/ */ +#include <linux/pm.h> +#include <linux/acpi.h> + +struct usb_hub_descriptor; +struct usb_dev_state; -extern void 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); +/* Functions local to drivers/usb/core/ */ -extern void usb_disable_endpoint (struct usb_device *dev, unsigned int epaddr); -extern void usb_disable_interface (struct usb_device *dev, - struct usb_interface *intf); +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 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_detect_quirks(struct usb_device *udev); +extern void usb_detect_interface_quirks(struct usb_device *udev); +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_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); -extern void usb_lock_all_devices(void); -extern void usb_unlock_all_devices(void); +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_khubd(struct usb_device *dev); -extern void usb_suspend_root_hub(struct usb_device *hdev); -extern void usb_resume_root_hub(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_host_init(void); -extern void usb_host_cleanup(void); -extern int usb_suspend_device(struct usb_device *dev); -extern int usb_resume_device(struct usb_device *dev); +#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); -/* Interfaces and their "power state" are owned by usbcore */ +#else -static inline void mark_active(struct usb_interface *f) +static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg) { - f->dev.power.power_state.event = PM_EVENT_ON; + return 0; } -static inline void mark_quiesced(struct usb_interface *f) +static inline int usb_port_resume(struct usb_device *udev, pm_message_t msg) { - f->dev.power.power_state.event = PM_EVENT_FREEZE; + return 0; } -static inline int is_active(struct usb_interface *f) +#endif + +#ifdef CONFIG_PM_RUNTIME + +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_set_usb2_hardware_lpm(struct usb_device *udev, int enable); + +#else + +#define usb_autosuspend_device(udev) do {} while (0) +static inline int usb_autoresume_device(struct usb_device *udev) +{ + return 0; +} + +static inline int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable) { - return f->dev.power.power_state.event == PM_EVENT_ON; + 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 struct file_operations usbfs_devices_fops; -extern struct file_operations usbfs_device_file_operations; +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 usbdev_init(void); -extern void usbdev_cleanup(void); - -struct dev_state { - struct list_head list; /* state list */ - struct usb_device *dev; - struct file *file; - spinlock_t lock; /* protects the async urb lists */ - struct list_head async_pending; - struct list_head async_completed; - wait_queue_head_t wait; /* wake up if a request completed */ - unsigned int discsignr; - pid_t disc_pid; - uid_t disc_uid, disc_euid; - void __user *disccontext; - unsigned long ifclaimed; -}; +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 |