BFE EngineeringandClaude Fable 5
13b7d063a2
Phase 4+5 of the device sim: - Display + touch verified end-to-end: virtio-gpu at 720x720 (fbdev emulation) renders the real WardenOS dashboard from the static LVGL fbdev+evdev UI build (flare-edge qemu-vm-support tools/build-ui-vm.sh); QMP input-send-event taps the Metrics tab and qemu/tests/ui-shot.sh asserts the repaint from screendumps. Two load-bearing QEMU flags found and documented: -global virtio-mmio.force-legacy=false (gpu/input are VERSION_1-only) and the 200ms press hold (an instantaneous press+release lands inside one LVGL indev poll and never clicks). - qemu/tests/qmp.py: minimal QMP client (screendump, tap, quit). - stage-2 init starts warden-ui when present and fb0 exists. - docs/decisions/0006-qemu-device-sim.md: virt-not-custom-board, the enters-at-kernel boundary, fragment policy, naming, consequences. - docs/architecture.md: new section 7 (device emulation), order-of-work item 7; modbus cross-reference to the bridge. - qemu/README.md: emulated-vs-not table, scenarios, gotchas, host/runner requirements. docs/ci-cd.md: runner needs one-time qemu-system-arm install (fail-closed smoke until then, [maintainer]-gated). Repo README updated. Final sweep on this commit: shellcheck clean, bridge 7/7 tests, boot smoke PASS, portal scenario PASS (check-in + fw pull + signed .wfw download), ui-shot PASS (touch navigates to Metrics) — all under the final flags. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
63 lines
2.0 KiB
Python
Executable File
63 lines
2.0 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Tiny QMP client for the qemu/ device-sim tests.
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qmp.py <socket> screendump <out.ppm>
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qmp.py <socket> tap <x> <y> # absolute 0..32767 (virtio-tablet)
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qmp.py <socket> quit
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"""
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import json
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import socket
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import sys
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import time
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def rpc(sock, obj):
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sock.sendall((json.dumps(obj) + "\n").encode())
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while True:
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line = sock_file.readline()
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if not line:
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raise RuntimeError("QMP connection closed")
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msg = json.loads(line)
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if "return" in msg:
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return msg["return"]
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if "error" in msg:
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raise RuntimeError(f"QMP error: {msg['error']}")
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# asynchronous events are interleaved; skip them
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def main():
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if len(sys.argv) < 3:
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sys.exit(__doc__)
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path, cmd = sys.argv[1], sys.argv[2]
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global sock_file
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s = socket.socket(socket.AF_UNIX)
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s.connect(path)
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sock_file = s.makefile("r")
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sock_file.readline() # greeting banner
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rpc(s, {"execute": "qmp_capabilities"})
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if cmd == "screendump":
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rpc(s, {"execute": "screendump", "arguments": {"filename": sys.argv[3]}})
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elif cmd == "tap":
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x, y = int(sys.argv[3]), int(sys.argv[4])
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press = [
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{"type": "abs", "data": {"axis": "x", "value": x}},
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{"type": "abs", "data": {"axis": "y", "value": y}},
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{"type": "btn", "data": {"down": True, "button": "left"}},
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]
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release = [{"type": "btn", "data": {"down": False, "button": "left"}}]
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rpc(s, {"execute": "input-send-event", "arguments": {"events": press}})
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# Hold the press across several LVGL indev poll periods (33 ms each):
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# an instantaneous press+release lands inside one poll and no click
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# is ever registered.
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time.sleep(0.2)
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rpc(s, {"execute": "input-send-event", "arguments": {"events": release}})
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elif cmd == "quit":
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s.sendall(b'{"execute":"quit"}\n')
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else:
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sys.exit(f"unknown command {cmd}")
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if __name__ == "__main__":
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main()
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