Whale Shark - an AAOS device configuration for Google Pixel Tablet (tangorpro)

🧑‍💻 About

This device configuration is intented to be run on a Google Pixel Tablet (tangorpro)

See also aosp-docker for a Docker-based tool chain and android-build-tools for additonal sync and flash scripts.

🛠️ Setup

Download AOSP repository

See here for setup of AOSP repository and dependencies.

Add binary drivers

1. Download binaries for tangorpro from here according to branch and build id
2. Extract with tar -xvf google_devices-tangorpro-*.tgz
3. Copy extract-google_devices-tangorpro.sh to $AOSP_HOME
4. Execute with bash extract-google_devices-tangorpro.sh
5. Drivers will be extracted to vendor/google_devices/tangorpro
6. Clean up with rm extract-google_devices-tangorpro.sh

⚙️ Build the product

This follows the normal AOSP build approach, e.g.

1. cd $AOSP_HOME
2. source build/envsetup.sh
3. lunch whaleshark_tangorpro-userdebug
4. m -j$(nproc --all)
5. m -j$(nproc --all) android.hardware.automotive.vehicle@2.0-default-service
6. See compiled files at $ANDROID_PRODUCT_OUT (should be out/target/product/tangorpro)

✨ Flash the build using $ANDROID_PRODUCT_OUT

1. Copy or rsync the $ANDROID_PRODUCT_OUT folder to localhost, if built remotely
2. Check that $ANDROID_PRODUCT_OUT is set and export otherwise
3. adb reboot bootloader
4. fastboot flashing unlock
5. fastboot flash bootloader $ANDROID_PRODUCT_OUT/bootloader.img (could be skipped)
6. fastboot reboot bootloader
7. fastboot -w flashall
8. You should see the device booting up, but being stuck at a black screen due to missing vendor sync

📦 Update vendor partition

Currently, there is an issue with vendor partition, so it needs to be adb synced manually, but these are the steps:

1. Set $ANDROID_PRODUCT_OUT to the folder containing the vendor folder
2. adb root
3. adb remount (eventually you need to adb shell vdc checkpoint commitChanges)
4. adb reboot
5. adb root && adb remount
6. adb synch vendor && adb reboot
7. The device should now be fully functional and welcoming you with the Dashboard window.

See also this article as a reference for Nexus and Pixel devices. Additionally you can use my script collection here for an automated sync and device flash.

🧑‍💻 Known Issues

General

1. Android Automotive service is not build automatically even though it is set in the product-package definition.
2. While building the firmware, some vendor files are missing in the image, they must be pushed manually via adb sync vendor