Jorijn van der Graaf
01ee20ddba
The preset fix (6ecc1dc) makes the unit run, but multi-user is too late: the
sound card probes at ~21 s, hard-fails (-2, no retry) on the missing ACF, and
the extractor's amp rebind at ~60 s cannot re-form a card whose machine
driver already failed. Re-probing the machine driver does re-form it, but a
late-formed card has a dead capture path - the wcd9378 TX sequencer refuses
PS0 (act_ps 0x3) until the next boot. So rebinding after the fact can never
fully win; extraction has to happen before the drivers probe.
- fp6-vendor-blobs.service: DefaultDependencies=no, run after remount-fs and
before systemd-udev-trigger, so blobs exist before module coldplug.
multi-user stays a second Wants as a post-udev retry if the early run
failed (by-partlabel/make-dynpart-mappings fallbacks need udev).
- aw88261-acf.manifest: add 'rebind platform sound' so the fallback path at
least recovers playback the same boot (capture then heals on reboot).
- fp6-vendor-blobs.post-upgrade (pkgrel 1): systemctl preset + immediate
extract, so installs of the 2026-08-24 image (unit shipped disabled, no
version bump to deliver the preset) finally heal via plain apk upgrade.
- soc-fairphone-fp6-audio pkgrel 1: carries the manifest change.
Verified on the dev phone with the exact staged bytes (sha256-compared):
simulated fresh install (ACF removed, reboot) extracts at 13.3 s, coldplug
probes the amps at 15.1 s, card init at 20.9 s loads the ACF cleanly, and a
1 kHz speaker-to-mic loopback passes on that same first boot with zero TX
sequencer warnings; next boot takes the all-dests-present fast path in 25 ms.
Evidence: fp6 repo journal/blobs/, 2026-08-29.
Assisted-by: Claude:claude-fable-5
16 lines
1.1 KiB
Text
16 lines
1.1 KiB
Text
# AW88261 smart-amp config blob (proprietary, Awinic) - extracted from the
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# stock vendor partition on-device instead of being shipped (fp6 repo
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# journal/blobs/, 2026-08-24). Slot A first, slot B as fallback; the copy
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# must hash-match the blob the audio stack was tested with.
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file vendor_a,vendor_b firmware/aw882xx_acf.bin /usr/lib/firmware/qcom/milos/fairphone/fp6/aw88261_acf.bin af723973655ba5901948d4a22212323e39ce53ff0156021185720af4af6ab0b3
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# Rebinds are the FALLBACK for a card that probed before extraction (the
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# service normally runs pre-coldplug, so they no-op). The amps bind on i2c
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# probe but request the ACF only at card init, never retried on failure; and
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# when that failed card init already took the machine driver down (-2, not a
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# defer), re-probing the amps alone cannot re-form the card - the platform
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# device needs a fresh probe too. Note the recovered card plays back fine
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# but its capture path is dead until the next boot (wcd9378 TX sequencer
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# refuses PS0 on a late-formed card - journal/blobs/ 2026-08-29).
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rebind i2c 6-0034
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rebind i2c 6-0035
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rebind platform sound
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