Struct devices::usb::xhci::xhci_transfer::XhciTransfer

pub struct XhciTransfer {
    manager: XhciTransferManager,
    state: Arc<Mutex<XhciTransferState>>,
    mem: GuestMemory,
    port: Arc<UsbPort>,
    interrupter: Arc<Mutex<Interrupter>>,
    slot_id: u8,
    endpoint_id: u8,
    transfer_dir: TransferDirection,
    transfer_trbs: Vec<AddressedTrb>,
    transfer_completion_event: Event,
    device_slot: Weak<DeviceSlot>,
    stream_id: Option<u16>,
}

Xhci transfer denotes a transfer initiated by guest os driver. It will be submitted to a XhciBackendDevice.

Fields

manager: XhciTransferManager

state: Arc<Mutex<XhciTransferState>>

mem: GuestMemory

port: Arc<UsbPort>

interrupter: Arc<Mutex<Interrupter>>

slot_id: u8

endpoint_id: u8

transfer_dir: TransferDirection

transfer_trbs: Vec<AddressedTrb>

transfer_completion_event: Event

device_slot: Weak<DeviceSlot>

stream_id: Option<u16>

Implementations

impl XhciTransfer

pub fn state(&self) -> &Arc<Mutex<XhciTransferState>>

Get state of this transfer.

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

Get transfer type.

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

Create a scatter gather buffer for the given xhci transfer

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

Create a usb request setup for the control transfer buffer

pub fn get_endpoint_number(&self) -> u8

Get endpoint number.

pub fn get_transfer_dir(&self) -> TransferDirection

get transfer direction.

pub fn get_stream_id(&self) -> Option<u16>

get stream id.

pub fn on_transfer_complete( &self, status: &TransferStatus, bytes_transferred: u32 ) -> Result<(), Error>

This functions should be invoked when transfer is completed (or failed).

pub fn send_to_backend_if_valid(self) -> Result<(), Error>

Send this transfer to backend if it’s a valid transfer.

fn validate_transfer(&self) -> Result<bool, Error>

Trait Implementations

impl Debug for XhciTransfer

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Drop for XhciTransfer

fn drop(&mut self)

Executes the destructor for this type.