aports: add fp6-charging-mode (offline charging, charger-boot detection)

Charger-insertion boots (androidboot.mode=charger, ABL-appended) divert to
a minimal charging.target instead of the full UI, ending the dead-battery
bootloop: ADSP charging/USB-PD runs, splash+panel killed ~6-10s in via an
initramfs hook, modem+cdsp stopped, radios/sensors suppressed, CPU capped.
Power key reboots to a normal boot, volume-up shows battery status,
volume-down enables USB ssh, unplug powers off. Measured >= breakeven on a
100mA-classified SDP port, strongly net-positive on real chargers.

Suspend duty-cycling (~13mA floor) exists behind an off-by-default flag:
resume from deep suspend intermittently kills the UFS link (hibern8 exit
failed ret=5) - do not enable until that kernel bug is fixed.

Byte-identical to the deployment verified on the dev phone 2026-08-24
(journal/power: r5 armed tests, crash autopsies, measurements).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Jorijn van der Graaf 2026-08-24 04:03:06 +02:00
commit eb13c18ea8
12 changed files with 507 additions and 1 deletions

View file

@ -0,0 +1,16 @@
#!/bin/sh
# Give the USB gadget interface its usual static address (the one the NM
# "Developer Mode" profile would assign) without NetworkManager. The
# workstation side self-configures 172.16.42.2 via its udev rule, so
# `ssh fp6usb4` works in charging mode.
IF=""
for i in $(seq 1 30); do
IF=$(ls /sys/class/net 2>/dev/null | grep '^usb' | head -1)
[ -n "$IF" ] && break
sleep 1
done
[ -n "$IF" ] || exit 0
ip addr replace 172.16.42.1/16 dev "$IF"
ip link set "$IF" up