1 //! Driver for VirtIO console devices.
17 /// Driver for a VirtIO console device.
26 /// use virtio_drivers::device::console::VirtIOConsole;
28 /// let mut console = VirtIOConsole::<HalImpl, _>::new(transport)?;
30 /// let info = console.info();
31 /// println!("VirtIO console {}x{}", info.rows, info.columns);
33 /// for &c in b"Hello console!\n" {
34 ///   console.send(c)?;
37 /// let c = console.recv(true)?;
38 /// println!("Read {:?} from console.", c);
66 /// Information about a console device, read from its configuration space.
69     /// The console height in characters.
71     /// The console width in characters.
73     /// The maxumum number of ports supported by the console device.
78     /// Creates a new VirtIO console driver.
101         let mut console = VirtIOConsole {  in new()  localVariable
111         console.poll_retrieve()?;  in new()
112         Ok(console)  in new()
115 …/// Returns a struct with information about the console device, such as the number of rows and col…
187     /// Returns the next available character from the console, if any.
203     /// Sends a character to the console.
281             device_type: DeviceType::Console,  in receive()
287         let mut console = VirtIOConsole::<FakeHal, FakeTransport<Config>>::new(transport).unwrap();  in receive()  localVariable
290         assert_eq!(console.recv(false).unwrap(), None);  in receive()
291         assert_eq!(console.recv(true).unwrap(), None);  in receive()
294         assert_eq!(console.ack_interrupt(), Ok(false));  in receive()
295         assert_eq!(console.recv(false).unwrap(), None);  in receive()
304         assert_eq!(console.ack_interrupt(), Ok(true));  in receive()
308         assert_eq!(console.recv(false).unwrap(), Some(42));  in receive()
309         assert_eq!(console.recv(true).unwrap(), Some(42));  in receive()
310         assert_eq!(console.recv(true).unwrap(), None);  in receive()
326             device_type: DeviceType::Console,  in send()
332         let mut console = VirtIOConsole::<FakeHal, FakeTransport<Config>>::new(transport).unwrap();  in send()  localVariable
347         assert_eq!(console.send(b'Q'), Ok(()));  in send()