1 //! Driver for VirtIO console devices.
25 /// Driver for a VirtIO console device.
33 /// use virtio_drivers::device::console::VirtIOConsole;
35 /// let mut console = VirtIOConsole::<HalImpl, _>::new(transport)?;
37 /// let size = console.size().unwrap().unwrap();
38 /// println!("VirtIO console {}x{}", size.rows, size.columns);
40 /// for &c in b"Hello console!\n" {
41 ///   console.send(c)?;
44 /// let c = console.recv(true)?;
45 /// println!("Read {:?} from console.", c);
75 /// The width and height of a console, in characters.
78     /// The console width in characters.
80     /// The console height in characters.
91     /// Creates a new VirtIO console driver.
113         let mut console = VirtIOConsole {  in new()  localVariable
123         console.poll_retrieve()?;  in new()
124         Ok(console)  in new()
127     /// Returns the size of the console, if the device supports reporting this.
198     /// Returns the next available character from the console, if any.
214     /// Sends a character to the console.
222     /// Sends one or more bytes to the console.
238     /// Sends a character to the console using the emergency write feature.
329             device_type: DeviceType::Console,  in config_info_no_features()
334         let console = VirtIOConsole::<FakeHal, FakeTransport<Config>>::new(transport).unwrap();  in config_info_no_features()  localVariable
336         assert_eq!(console.size(), Ok(None));  in config_info_no_features()
352             device_type: DeviceType::Console,  in config_info()
357         let console = VirtIOConsole::<FakeHal, FakeTransport<Config>>::new(transport).unwrap();  in config_info()  localVariable
360             console.size(),  in config_info()
381             device_type: DeviceType::Console,  in emergency_write()
386         let mut console = VirtIOConsole::<FakeHal, FakeTransport<Config>>::new(transport).unwrap();  in emergency_write()  localVariable
388         console.emergency_write(42).unwrap();  in emergency_write()
405             device_type: DeviceType::Console,  in receive()
410         let mut console = VirtIOConsole::<FakeHal, FakeTransport<Config>>::new(transport).unwrap();  in receive()  localVariable
413         assert_eq!(console.recv(false).unwrap(), None);  in receive()
414         assert_eq!(console.recv(true).unwrap(), None);  in receive()
417         assert_eq!(console.ack_interrupt(), Ok(false));  in receive()
418         assert_eq!(console.recv(false).unwrap(), None);  in receive()
427         assert_eq!(console.ack_interrupt(), Ok(true));  in receive()
431         assert_eq!(console.recv(false).unwrap(), Some(42));  in receive()
432         assert_eq!(console.recv(true).unwrap(), Some(42));  in receive()
433         assert_eq!(console.recv(true).unwrap(), None);  in receive()
449             device_type: DeviceType::Console,  in send()
454         let mut console = VirtIOConsole::<FakeHal, FakeTransport<Config>>::new(transport).unwrap();  in send()  localVariable
469         assert_eq!(console.send(b'Q'), Ok(()));  in send()