3 Commits

Author	SHA1	Message	Date
Gabriel Kaszewski	2792387348	fix: VirtIO keyboard input latency and direction accuracy ... - Driver now drains SYN/repeat/unknown events in a loop instead of returning None on the first non-key event - Snake drains all pending input events per tick, applies only the latest direction change (prevents stale event accumulation)	2026-10-19 00:34:13 +02:00
Gabriel Kaszewski	0a47b5489a	feat: VirtIO keyboard input for QEMU GUI ... - Add VirtIO input device driver (device ID 18) reading from eventq - Translate Linux keycodes (WASD, arrows) to InputEvent - Kernel probes for VirtIO input device, falls back to UART - Add -device virtio-keyboard-device to run-gui Makefile target - input-qemu tries VirtIO first, falls back to UART	2026-10-19 00:30:20 +02:00
Gabriel Kaszewski	27be73f42d	feat: wire display + input servers to snake, fix QEMU 11.x GPU bug ... VirtIO GPU: QEMU 11.x has RESOURCE_ATTACH_BACKING (0x0104) and RESOURCE_FLUSH (0x0106) command types swapped in its legacy MMIO VirtIO GPU implementation. Workaround: send swapped type values. Confirmed via QEMU monitor (xp shows correct bytes in memory) and QEMU trace events (device dispatches to wrong handler). Display pipeline now works end-to-end: adapter → GPU init → create_2d → attach_backing → set_scanout display-server → clear(blue) → flush → transfer + resource_flush snake → draw commands via IPC → display renders → flush to GPU Input server: - New driver-input-uart crate (reads UART at mapped VA 0x20000) - New bins/input-qemu composition root - Adapter loads input-server, maps UART MMIO into its address space - Init delegates both display_ep (slot 0) and input_ep (slot 1) to snake - WASD keys → UART → input-server → IPC → snake direction change Snake game runs with display and input, exits on wall collision.	2026-10-18 21:10:42 +02:00