Struct devices::usb::xhci::usb_hub::UsbPort

pub struct UsbPort {
    ty: BackendType,
    port_id: u8,
    portsc: Register<u32>,
    usbsts: Register<u32>,
    interrupter: Arc<Mutex<Interrupter>>,
    backend_device: Mutex<Option<Arc<Mutex<BackendDeviceType>>>>,
}

A port on usb hub. It could have a device connected to it.

Fields

ty: BackendType

port_id: u8

portsc: Register<u32>

usbsts: Register<u32>

interrupter: Arc<Mutex<Interrupter>>

backend_device: Mutex<Option<Arc<Mutex<BackendDeviceType>>>>

Implementations

impl UsbPort

pub fn new( ty: BackendType, port_id: u8, portsc: Register<u32>, usbsts: Register<u32>, interrupter: Arc<Mutex<Interrupter>> ) -> UsbPort

Create a new usb port that has nothing connected to it.

fn port_id(&self) -> u8

pub fn detach(&self) -> Result<(), Error>

Detach current connected backend. Returns an error when there is no backend connected.

pub fn backend_device( &self ) -> MutexGuard<'_, Option<Arc<Mutex<BackendDeviceType>>>>

Get current connected backend.

fn is_attached(&self) -> bool

fn reset(&self) -> Result<(), InterrupterError>

fn attach( &self, device: Arc<Mutex<BackendDeviceType>> ) -> Result<(), InterrupterError>

pub fn send_device_connected_event(&self) -> Result<(), InterrupterError>

Inform the guest kernel there is device connected to this port. It combines first few steps of USB device initialization process in xHCI spec 4.3.

pub fn send_device_disconnected_event(&self) -> Result<(), InterrupterError>

Inform the guest kernel that device has been detached.