NEON kernel for the YUV420 superpixel convert (vld2q deinterleave, rounding-halving greens, mlal/rshrn luma, pairwise-add chroma block sums), bit-identical to the scalar path and proven so on a live frame via the FORGECTRL_NEON_CHECK one-shot memcmp. Convert 75 to 18 ms; the stream now runs at the OV5648 frame rate. Motion coexistence re-proven at 15 fps (clamped 0).
Demosaic the superpixels straight to planar YUV420 and encode on the CODA960 (mainline coda V4L2 mem2mem, node found by personality); libjpeg stays as the automatic fallback and the snapshot path. All camera paths now demosaic from a cached bounce copy of the frame: the V4L2 MMAP capture buffers are uncached, and reading them in-place costs ~340 ms/frame vs 43 ms memcpy + 75 ms cached convert. Per-frame stats logged every 100 frames; /cam/status reports the encoder.
A stream request for the other camera kicks current stream clients via a generation counter (their streams end cleanly; viewers freeze on the last frame) and switches. The index page retry consults /cam/status first so a preempted view does not steal the camera back.
Snapshots of the non-streaming camera no longer fail 409: the worker borrows the mux for one frame (stream viewers see a short freeze). Stream switches wait up to 3 s for the previous pin to drain. Arbitration compares the engine home camera, not the transiently borrowed pipeline camera. Index page: single toggled stream with retry plus a head-peek button.
ulfius builds itself with -Werror -Wconversion; Yocto Scarthgap sets
-D_TIME_BITS=64 on arm32, making a long-long-to-long time conversion
in u_websocket.c fatal. Exclude conversion warnings from -Werror.
The dev image required the shared glowforge-image base directly, so it
was not a superset of forgefirm-image (it lacked v4l-utils, audit N12).
Require forgefirm-image and add forgectrl + debug tooling on top.
The ulfius recipe tracked AUTOREV master and could never build: master
requires orcania/yder versions that have no release tags, no recipe for
either existed in any layer, and curl (default-ON WITH_CURL) was
missing from DEPENDS (audit M10). Pin the coherent release set - ulfius
v2.7.15 + orcania v2.3.3 + yder v1.4.20 - add the two new recipes,
add curl, convert to SPDX LGPL-2.1-or-later, and rename the misspelled
recipes-extended/uflius directory.
v4l2-ctl (alongside the already-present media-ctl) configures the
imx-media pipeline and grabs raw frames from /dev/video4 while the
gfhardware capture path is ported off the factory NXP V4L2 model.
gfui-client connects to Glowforge's servers; ForgeFIRM replaces it with a
local grblHAL controller (forgectrl). Remove it from the image via an
override, leaving the shared glowforge-image base untouched.
ScottW514