README

Clone, build, install https://github.com/andersson/qrtr
sudo systemctl enable qrtr-ns.service
apt-get install libudev-dev
Clone, build, install https://github.com/andersson/rmtfs
sudo systemctl enable rmtfs.service
Clone, build, install https://github.com/andersson/pd-mapper
sudo systemctl enable pd-mapper.service
Clone, build, install https://github.com/andersson/tqftpserv
sudo systemctl enable tqftpserv.service
Copy FileRepository\qcsubsys8998.inf_arm64_09c39c1cc604f5ac\WLANMDSP.MBN to  the same directory the modem fw lives (ie /lib/firmware/qcom/LENOVO/81F1) as wlanmdsp.mbn
Copy modemuw.jsn from https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/tree/qcom/sdm845 and put in the same directory as the modem fw lives
mkdir bdf (just need to exist temporary)
Copy FileRepository\qcsubsys8998.inf_arm64_09c39c1cc604f5ac\bdwlan* to bdf/
Run script[1] - twice since it exits after clone
Create /lib/firmware/ath10k/WCN3990/hw1.0 directory
Copy board-2.bin script output to /lib/firmware/ath10k/WCN3990/hw1.0
Download firmware-5.bin from https://github.com/kvalo/ath10k-firmware/tree/master/WCN3990/hw1.0/HL2.0/WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1 to /lib/firmware/ath10k/WCN3990/hw1.0
Enable "single-chan-info-per-channel" to suppresss "chan info event" warning with qca-swiss-army-knife/tools/scripts/ath10k/ath10k-fwencoder --modify --features=wowlan,mgmt-tx-by-ref,non-bmi,single-chan-info-per-channel  firmware-5.bin


[1]

#!/bin/bash

if [ \! -d qca-swiss-army-knife ]; then
        git clone https://github.com/qca/qca-swiss-army-knife.git
        exit 0
fi

JSON="bdf/board-2.json"

iter=0
echo "[" > "${JSON}"
for file in bdf/bdwlan.*; do
 [[ $file == *.txt ]] && continue

 iter=$((iter+1))
 [ $iter -ne 1 ] && echo "  }," >> "${JSON}"

 echo "  {" >> "${JSON}"
 echo "          \"data\": \"$file\"," >> "${JSON}"
 if [[ $file == */bdwlan.bin ]]; then
  file_ext="ff"
 else
  file_ext="$(printf '%x\n' "$(basename "${file}" | sed -E
's:^.*\.b?([0-9a-f]*)$:0x\1:')")"
 fi
 echo "          \"names\": [\"bus=snoc,qmi-board-id=${file_ext}\"]"
>> "${JSON}"
done

echo "  }" >> "${JSON}"
echo "]" >> "${JSON}"

python2 qca-swiss-army-knife/tools/scripts/ath10k/ath10k-bdencoder -c "${JSON}" -o board-2.bin