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Omni is designed to use a basic AOSP device tree, with a few small modifications. This page will detail the necessary changes.
To begin, fork an already working device repo and delete their makefiles and stuff like omni_[device].mk and omni.dependencies.
Tip #1 - Never blindly edit anything that says full. If you do so, chances are your device won't boot.
- First you need to add a new make file for Omni. See the one below for an example:
- https://github.com/omnirom/android_device_oneplus_oneplus3/blob/android-7.1/omni_oneplus3.mk
- Add the makefile you created into
AndroidProducts.mk. See the one below for an example:
- Create a new file named
vendorsetup.sh. See the one below for an example:
- Create a json file named
omni.dependencieswhich will pull all of the necessary repos to build. See the one below for an example:
Tip #2 - JSON files can be really annoying. Go to http://jsonlint.com/, paste in your json file and let it check for errors.
- You now need to setup your device tree for Team Win Recovery Protocol, aka TWRP. This usually consists of the following (visit this link for more information):
- adding TWRP specific build flags in
BoardConfig.mk - creating
twrp.fstabfile - adding
twrp.fstabto the PRODUCT_COPY_FILES make variable.
That's it. If you did everything correctly, then you should have a working build.
Basic QCOM Support
To enable basic QCOM hardware support, the following must be added to your device's BoardConfig.mk:
BOARD_USES_QCOM_HARDWARE := true
Furthermore, QCOM_BSP support should be included in your device's BoardConfig.mk as follows:
TARGET_USES_QCOM_BSP := true
Audio/Display/Media HAL
hardware/qcom/[audio/display/media] are separated on a per-platform basis. You must declare the HAL variant for your platform in your device's BoardConfig.mk via:
TARGET_QCOM_[AUDIO/DISPLAY/MEDIA]_VARIANT := caf-msm89**
Enabling QCOM Audio/Video Enhancements
Include the following in your BoardConfig.mk:
TARGET_ENABLE_QC_AV_ENHANCEMENTS := true