oxmc
1e4b73a66c
The RPi firmware can't read the BCB in misc, so 'adb reboot recovery' / factory reset never reached recovery: init writes boot-recovery and reboots, the firmware ignores the reboot arg, and Android just boots normally again. pawlet-recoveryboot is a vendor oneshot (post-fs-data) that reads the BCB command field (misc offset 0 — the HAL's PawletBootControl lives at 4096, no overlap) and, on boot-recovery, reboots with arg '3': the firmware's PM_RSTS partition mechanism (same driver path as the updater's tryboot) boots GPT partition 3 = recovery once. Stock recovery reads its args from the untouched BCB, clears it when done, and the next reboot is normal. A /metadata attempt counter clears the BCB after 2 failed tries so an unbootable recovery can't wedge the device.
48 lines
2.1 KiB
Makefile
48 lines
2.1 KiB
Makefile
#
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# Copyright (C) 2025-2026 oxmc / PawletOS
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# RPi-specific product config. Include from each RPi device's device.mk
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# AFTER inheriting common.mk:
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# $(call inherit-product, vendor/pawlet/config/common.mk)
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# $(call inherit-product, vendor/pawlet/config/rpi_common.mk)
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#
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# ---------------------------------------------------------------------------
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# Base hardware and software feature declarations for all RPi devices
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# ---------------------------------------------------------------------------
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PRODUCT_COPY_FILES += \
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vendor/pawlet/config/permissions/pawlet-rpi-base-hardware.xml:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/pawlet-rpi-base-hardware.xml
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# ---------------------------------------------------------------------------
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# RPi boot control HAL (A/B seamless updates via misc partition)
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# ---------------------------------------------------------------------------
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PRODUCT_PACKAGES += \
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android.hardware.boot-service.pawlet_rpi
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# ---------------------------------------------------------------------------
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# RPi-specific framework overlay
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# Disables telephony, GPS, and recents; sets Ethernet boot timeout.
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# ---------------------------------------------------------------------------
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PRODUCT_PACKAGES += \
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pawlet-rpi-framework-res-overlay
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# ---------------------------------------------------------------------------
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# RPi updater overlay — enables tryboot-based A/B slot switching
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# ---------------------------------------------------------------------------
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PRODUCT_SOONG_NAMESPACES += device/pawlet/rpi
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PRODUCT_PACKAGES += \
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PawletUpdaterRpiOverlay \
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PawletSettings \
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SettingsProviderRpiCommonOverlay
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# ---------------------------------------------------------------------------
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# reboot-to-recovery chain-loader — RPi firmware can't read the BCB in misc,
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# so a boot-time oneshot detects "boot-recovery" and reboots into the
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# recovery partition (3) via the firmware's PM_RSTS partition mechanism.
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# ---------------------------------------------------------------------------
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PRODUCT_PACKAGES += \
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pawlet-recoveryboot
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