vasilito
19a9eecb54
Add a real, QEMU-targeted virtio-input driver as a new Red Bear recipe at local/recipes/drivers/virtio-inputd/. The driver handles virtio-input-host-pci, virtio-input-keyboard, virtio-input-mouse, and virtio-input-tablet devices and closes Gap #19 of the v5.0 desktop plan. The driver: * Walks the PCI capability list to find the modern virtio 1.0 capability block (common_cfg, notify_cfg, isr_cfg, device_cfg) using MmioRegion mappings via redox-driver-sys. Rejects legacy virtio-input (device 0x1052) which lacks the modern transport. * Negotiates VIRTIO_F_VERSION_1 only (the only required feature). * Allocates one event virtqueue (size up to 64) backed by four DMA buffers (desc, avail, used, event_buffers) and pre-fills the avail ring. * Polls the used ring at 60 Hz, drains completed events, decodes each virtio_input_event (8-byte type/code/value), and recycles drained buffers back to the avail ring. * Translates events to orbclient format and pushes them to inputd via ProducerHandle (Orbital path): - EV_KEY -> KeyEvent (with US-QWERTY character mapping) - EV_REL -> MouseRelativeEvent (REL_X/REL_Y) or ScrollEvent (REL_WHEEL) - EV_SYN -> dropped (inputd multiplexes) - Other -> dropped (Phase 5.2 will add evdevd path) Probe-time checks: * Vendor 0x1AF4, device_id >= 0x1042, revision >= 1 * Caps include a device_cfg block with virtio type == 18 (virtio_input) Configuration: a pcid-spawner fragment is added to config/redbear-full.toml under /etc/pcid.d/virtio-inputd.toml matching class=0x09 vendor=0x1AF4 with device_id_range 0x1042..=0x107F (and a separate 0x1052 entry that the driver intentionally rejects). Verification: cargo check produces 0 errors and 65 warnings, all of which are unused input-event-codes.h constants reserved for the Phase 5.2 expansion. Linking the binary requires the Redox cross-toolchain (relibc provides redox_sys_call_v0); this is provided by the build system, not the host toolchain. Plan: this is Phase 5.1 of CONSOLE-TO-KDE-DESKTOP-PLAN.md v5.0. The plan is updated to v5.1 with: (a) a 'What Changed Since v5.0' section, (b) Gap #19 marked DONE, (c) Phase 5 row marked DONE with sub-task status, (d) Gate E updated, (e) Input pipeline section updated to reflect the (c) path is now implemented. Phase 5.2 (evdevd producer path + virtio-snd) is documented as the next planned work but not yet implemented.
21 lines
792 B
TOML
21 lines
792 B
TOML
[package]
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name = "virtio-inputd"
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version = "0.1.0"
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edition = "2024"
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description = "VirtIO input device driver for Red Bear OS — handles QEMU virtio-input-host-pci, virtio-input-keyboard, virtio-input-mouse, virtio-input-tablet. Events are translated to orbclient format and pushed to inputd."
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[[bin]]
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name = "virtio-inputd"
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path = "src/main.rs"
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[dependencies]
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anyhow = "1"
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log = "0.4"
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orbclient = "0.3.55"
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libredox = { version = "=0.1.16", features = ["call", "std"] }
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redox_syscall = { version = "0.7", features = ["std"] }
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redox-driver-sys = { path = "../../redox-driver-sys/source" }
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syscall = { package = "redox_syscall", version = "0.7", features = ["std"] }
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inputd = { path = "../../../../sources/base/drivers/inputd" }
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common = { path = "../../../../sources/base/drivers/common" }
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