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WiFi (UNSTABLE)

Build a WiFi enabled kernel

Fetch and apply 2 ath10k patches to a supported kernel

Note: You can find a supported kernel HERE

$ wget https://lore.kernel.org/lkml/20190725063108.15790-1-bjorn.andersson@linaro.org/raw -O patch1.mbox
$ wget https://lore.kernel.org/linux-arm-msm/20190725174755.23432-2-bjorn.andersson@linaro.org/raw -O patch2.mbox

$ git am patch1.mbox
$ git am patch2.mbox

Build a kernel debian package

Note: This are the commands to cross-compile. Compiling natively will work equally well.

$ ccache make -j $(nproc)                       \
    ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
    KBUILD_OUTPUT=../build-arm64                \
    dtbs

$ ccache make -j $(nproc)                       \
    ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
    KBUILD_OUTPUT=../build-arm64

$ ccache make -j $(nproc)                       \
    ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- \
    KBUILD_OUTPUT=../build-arm64                \
    bindeb-pkg

This will result in a linux-image-*.deb file in the parent directory that you can install with dpkg -i.

Clone build and install the required userspace projects (on the device)

$ sudo apt install git build-essential libudev-dev

$ git clone https://github.com/andersson/qrtr.git
$ git clone https://github.com/andersson/rmtfs.git
$ git clone https://github.com/andersson/pd-mapper.git
$ git clone https://github.com/andersson/tqftpserv.git

$ pushd qrtr && make && sudo make install && popd
$ pushd rmtfs && make && sudo make install && popd
$ pushd pd-mapper && make && sudo make install && popd
$ pushd tqftpserv && make && sudo make install && popd

Fetch firmware-5.bin from kvalo/ath10k-firmware GitHub repo

$  wget https://github.com/kvalo/ath10k-firmware/blob/master/WCN3990/hw1.0/HL2.0/WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1/firmware-5.bin?raw=true -O firmware-5.bin

Fetch required files from Windows (use search)

  bdwlan.b36
  bdwlan.b37
  bdwlan.b38
  bdwlan.b3c
  bdwlan.b3f
  bdwlan.bin
  wlanmdsp.mbn
  qcdsp1v2850.mbn
  qcdsp2850.mbn

Place wlanmdsp.mbn in the TFTP directory

$  sudo mkdir -p /readonly/firmware/image
$  sudo cp wlanmdsp.mbn /readonly/firmware/image

Create board-2.bin

Create required directory structure and cd into it

$  mkdir -p creating-board-2.bin/bdf
$  cd creating-board-2.bin

Place bdwlan.* files into creating-board-2.bin/bdf

$  cp bdwlan.* creating-board-2.bin/bdf

Obtain helper script, make it executable and run it

$  wget https://github.com/aarch64-laptops/build/blob/master/misc/lenovo-yoga-c630/wifi/create-board-2.bin/make-board-2.bin.sh
$  chmod +x make-board-2.bin.sh
$  ./make-board-2.bin.sh

Copy firmwares into final location(s) (on the device)

$  sudo mkdir -p /lib/firmware/ath10k/WCN3990/hw1.0
$  sudo cp board-2.bin /lib/firmware/ath10k/WCN3990/hw1.0
$  sudo cp firmware-5.bin /lib/firmware/ath10k/WCN3990/hw1.0

$  sudo mkdir /lib/firmware/qcom/c630
$  sudo cp qcdsp1v2850.mbn /lib/firmware/qcom/c630
$  sudo cp qcdsp2850.mbn /lib/firmware/qcom/c630/modem.mdt
$  sudo cp wlanmdsp.mbn /lib/firmware/qcom/c630

Start the services

$  sudo systemctrl start qrtr-ns
$  sudo systemctrl start pd-mapper
$  sudo systemctrl start tqftpserv
$  sudo systemctrl start rmtfs

Check running services (around 40 should be present)

$  qrtr-lookup

To enable services on automatically at boot time

$  sudo systemctrl enable qrtr-ns
$  sudo systemctrl enable pd-mapper
$  sudo systemctrl enable tqftpserv
$  sudo systemctrl enable rmtfs