Jorijn van der Graaf
325aa0b7d4
The device tree asks ath11k for the Fairphone_Gen_6 board data entry. Upstream linux-firmware's WCN6750 board-2.bin has no Fairphone entry, so the driver silently falls back to the generic board-id 255 data: the FP6 Plus does not associate on it at all (user report 2026-10-14), and the FP6 keeps its channel list but its scans no longer find the 5 GHz networks around it (two scans found 0 and 1 5 GHz BSSes against 14 with the device's data, the home AP at -37 dBm among the missing), so it associates on 2.4 GHz only (dev phone A/B). The stock modem partition carries the device's own calibration as image/qca6750/bdwlan.elf. New manifest directive ath11k-bdf: copy that ELF and wrap it into a container under /lib/firmware/updates (searched first by the loader) that is upstream's board-2.bin with every entry kept plus one BOARD entry under the requested name. Verified structurally (ELF magic, size, the container magic), no hash pin: the ELF belongs to the stock modem image and can change with it. The sha256 of the base is kept beside the override: a changed base (a linux-firmware upgrade) rebuilds it at the next run, and a rebuild that reproduces the existing file installs nothing; an entry upstream ships under the same name is taken first by the driver, so the appended copy then goes unused. The fragment has no rebind line: the service is ordered before udev's coldplug, which loads the driver, so a fresh install builds the container before the first probe (dev phone, the override removed and rebooted: built at 7.2 s, coldplug from 7.3 s, the driver's board-data load at 8.7 s, the first association on 5 GHz), and an installed phone gets it at its next boot; a re-probe from a package hook would restart wifi in the middle of the upgrade. zstd joins the dependencies to read the compressed base. Dev phone: the built container is byte-identical to the one hand-made from the stock image by the reporter (sha256 186202ee...); the hook's call with the override absent built it over a wifi session that stayed up, a second call installed nothing and a --refresh call left the container unchanged.
76 lines
4.2 KiB
Text
76 lines
4.2 KiB
Text
# First-boot, on-device extraction of proprietary blobs from the stock
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# Android partitions, so the image never has to ship or distribute them.
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# pmOS installs flash only boot+userdata: the stock vendor/dsp partitions
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# stay on every installed unit, and the device duplicates files it already
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# lawfully contains, for its own operation. Design, legal frame and the
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# on-phone verification: fp6 repo journal/blobs/.
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#
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# Consumers depend on this package and install a manifest fragment into
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# /usr/share/fp6-vendor-blobs/manifest.d/ (syntax in the extract script);
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# their post-install/post-upgrade should also run
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# /usr/lib/fp6-vendor-blobs/extract --if-device so a package upgrade that
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# drops a previously-shipped blob restores the file immediately instead of
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# at the next boot (--refresh in addition for an mbn consumer: it re-derives
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# the trustlet from the active slot even if a file is present). Consumers:
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# soc-fairphone-fp6-audio (aw88261 acf), fingerprintd (focal64 trustlet);
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# this package's own 30-ath11k-board-data fragment (WLAN board data).
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#
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# 1-r3 (2026-09-11): active slot first, an unpinned ('-') structurally
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# verified mode for mbn, --refresh -- after two field units got no
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# fingerprint sensor from a whole-image hash pin that can only match one
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# Android build (fp6 repo journal/blobs/, journal/fingerprint/).
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# 1-r4 (2026-10-14): the ath11k-bdf directive -- the WLAN board data the
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# device tree asks for, built on-device from the stock modem partition
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# (the FP6 Plus does not associate on upstream's generic data).
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maintainer="Jorijn van der Graaf <jorijnvdgraaf@catcrafts.net>"
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pkgname=fp6-vendor-blobs
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pkgver=1
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pkgrel=4
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pkgdesc="On-device extraction of vendor blobs from the stock Android partitions"
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url="https://forgejo.catcrafts.net/Catcrafts/fp6-img"
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arch="noarch"
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license="GPL-3.0-only"
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# fallback mapper for when the initramfs didn't map the dynamic partitions
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depends="make-dynpart-mappings zstd"
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install="$pkgname.post-upgrade"
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options="!check"
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source="
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fp6-vendor-blobs-extract
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fp6-vendor-blobs.service
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fp6-vendor-blobs.preset
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30-ath11k-board-data.manifest
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"
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package() {
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install -Dm755 "$srcdir"/fp6-vendor-blobs-extract \
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"$pkgdir"/usr/lib/fp6-vendor-blobs/extract
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install -Dm644 "$srcdir"/fp6-vendor-blobs.service \
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"$pkgdir"/usr/lib/systemd/system/fp6-vendor-blobs.service
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# enabled unconditionally: the unit is a fast no-op once every manifest
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# dest exists and every ath11k-bdf override is current against its base,
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# and blobs appearing on first boot must not depend on a manual
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# systemctl enable. sysinit = the real (pre-coldplug) run;
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# multi-user = the post-udev retry if the early run failed (see unit)
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mkdir -p "$pkgdir"/etc/systemd/system/sysinit.target.wants \
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"$pkgdir"/etc/systemd/system/multi-user.target.wants
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ln -s /usr/lib/systemd/system/fp6-vendor-blobs.service \
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"$pkgdir"/etc/systemd/system/sysinit.target.wants/fp6-vendor-blobs.service
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ln -s /usr/lib/systemd/system/fp6-vendor-blobs.service \
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"$pkgdir"/etc/systemd/system/multi-user.target.wants/fp6-vendor-blobs.service
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# ...and a preset, because the symlink alone does NOT survive: image
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# build runs `systemctl preset-all`, which removes .wants links for any
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# unit not enabled by a preset. That is what shipped the 2026-08-24
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# image with the service `disabled; preset: disabled` -- no blob
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# extracted, no sound card. See journal/blobs/ 2026-08-28.
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install -Dm644 "$srcdir"/fp6-vendor-blobs.preset \
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"$pkgdir"/usr/lib/systemd/system-preset/50-fp6-vendor-blobs.preset
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install -Dm644 "$srcdir"/30-ath11k-board-data.manifest \
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"$pkgdir"/usr/share/fp6-vendor-blobs/manifest.d/30-ath11k-board-data.manifest
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}
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sha512sums="
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6aee5f56bc7bc960537b7ca1069305b56a5ec8da99a58298ba1715e93f002d391a2bd24be78214428b0297f9e3cfd1003a243c76a2d08397dcac63a7d800d302 fp6-vendor-blobs-extract
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b4c290095d9f39515378dfef08de720ce49324210342aa13c131dfce1103785e796e6f821f0c659671a4c44b46f466ce0e03f11f216fdcdee2a99db5e7970800 fp6-vendor-blobs.service
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9e79dd0aed13f11a71282aa24b2a26331e85c105e25ab0c0fed6189b8c300769a5f4308b18b91d9855868d658ad3a57c03e26c9b11bd27fd5e03f9a5decbbd6a fp6-vendor-blobs.preset
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f13d7b384a9b577762693c6831fbf28cb9e92e4f943af1917ddeba121c582f0c85c81a3e01e8e9ff6367c3717b6c37743f019db297f75339871292cf816bfc91 30-ath11k-board-data.manifest
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"
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