Struct VirtIOGPU

pub struct VirtIOGPU<'a, 'b> { /* private fields */ }

Driver for a VirtIO GPUDevice-class device.

Implements Tock’s Screen HIL, and supports a single head with the ARGB_8888 pixel mode.

Implementations

impl<'a, 'b> VirtIOGPU<'a, 'b>

pub fn new( control_queue: &'a SplitVirtqueue<'a, 'b, 2>, req_buffer: &'b mut [u8; 56], resp_buffer: &'b mut [u8; 24], width: usize, height: usize, ) -> Result<VirtIOGPU<'a, 'b>, ErrorCode>

pub fn initialize(&self) -> Result<(), ErrorCode>

Trait Implementations

impl DeferredCallClient for VirtIOGPU<'_, '_>

fn register(&'static self)

fn handle_deferred_call(&self)

Software interrupt function that is called when the deferred call is triggered.

impl<'a> Screen<'a> for VirtIOGPU<'a, '_>

fn set_client(&self, client: &'a dyn ScreenClient)

Set the object to receive the asynchronous command callbacks.

fn get_resolution(&self) -> (usize, usize)

Get a tuple (width, height) with the current resolution (in pixels).

fn get_pixel_format(&self) -> ScreenPixelFormat

Get the current pixel format.

fn get_rotation(&self) -> ScreenRotation

Get the current rotation.

fn set_write_frame( &self, x: usize, y: usize, width: usize, height: usize, ) -> Result<(), ErrorCode>

Sets the write frame.

fn write( &self, buffer: SubSliceMut<'static, u8>, continue_write: bool, ) -> Result<(), ErrorCode>

Write data from buffer to the selected write frame.

fn set_brightness(&self, _brightness: u16) -> Result<(), ErrorCode>

Set the display brightness value.

fn set_power(&self, enabled: bool) -> Result<(), ErrorCode>

Controls the screen power supply.

fn set_invert(&self, _enabled: bool) -> Result<(), ErrorCode>

Controls the color inversion mode.

impl<'b> SplitVirtqueueClient<'b> for VirtIOGPU<'_, 'b>

fn buffer_chain_ready( &self, _queue_number: u32, buffer_chain: &mut [Option<VirtqueueBuffer<'b>>], bytes_used: usize, )

impl VirtIODeviceDriver for VirtIOGPU<'_, '_>

fn negotiate_features(&self, _offered_features: u64) -> Option<u64>

VirtIO feature negotiation.

fn device_type(&self) -> VirtIODeviceType

VirtIO device type which the driver supports.

fn pre_device_initialization(&self) -> Result<(), ErrorCode>

Hook called before the transport indicates DRIVER_OK to the device.

fn device_initialized(&self) -> Result<(), ErrorCode>

Hook called after the transport indicated DRIVER_OK to the device.