Before compiling qcacld drivers for RaspberryPi, you have to prepare kernel. Here is official guide:
1. Download Raspbian Stretch Lite image from Raspberry official site
2. Unzip the image:
unzip 2018-11-13-raspbian-stretch-lite.zip
3. Write the sdcard Insert SD card and check the name
sudo fdisk -l
In our case, the sdcard was named /dev/mmcblk0, then
sudo dd if=2018-11-13-raspbian-stretch-lite.img of=/dev/mmcblk0
4. Optional Enable ssh Mount the sdcard boot partition
sudo mount /dev/mmcblk0p1 /mnt
Create file, that enables ssh
sudo touch /mnt/ssh
Unmount the partition
sudo umount /mnt
1. Download sources
mkdir RaspberryPi_Beans; cd RaspberryPi_Beans git clone https://github.com/raspberrypi/tools git clone https://github.com/raspberrypi/linux -b rpi-4.11.y git clone https://github.com/8devices/qcacld-2.0/ -b CNSS.LEA.NRT_3.0
2. Add toolchain to PATH
export PATH=$PATH:$PWD/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin
3. Prepare Linux
cd linux KERNEL=kernel7 make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- bcm2709_defconfig
Enable nl80211 test mode
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- menuconfig
Networking support -> Wireless -> nl80211 testmode command
Save and exit.
4. Patch kernel
for i in ../qcacld-2.0/patches/kernel/v4.11/0* ; do patch -p1 < $i ; done
5. Build kernel
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- zImage modules dtbs -j$(nproc)
6. Patch qcacld
cd ../qcacld-2.0/
Patch the sources
patch -p1 < patches/RaspberryPi/0001-destructor_rename.patch
7. Build qcacld
KERNEL_SRC=../linux/ ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- make -j$(nproc) cd ..
1. Mount boot partition
sudo mount /dev/mmcblk0p1 /mnt
2. Transfer the kernel and device tree
cd linux sudo cp /mnt/kernel7.img /mnt/kernel7-backup.img sudo cp arch/arm/boot/zImage /mnt/kernel7.img sudo cp arch/arm/boot/dts/*.dtb /mnt/ sudo cp arch/arm/boot/dts/overlays/*.dtb* /mnt/overlays/ sudo cp arch/arm/boot/dts/overlays/README /mnt/overlays/
3. Edit /boot/config.txt
echo core_freq=250 | sudo tee --append /mnt/config.txt echo dtoverlay=sdio,poll_once=false | sudo tee --append /mnt/config.txt
4. Unmount the partition
sudo umount /mnt
5. Install modules
sudo mount /dev/mmcblk0p2 /mnt sudo make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_MOD_PATH=/mnt/ modules_install cd ../qcacld-2.0/ sudo cp *.ko /mnt/home/pi/ sudo cp -r firmware_bin/usb/* /mnt/lib/firmware/ sudo umount /mnt
6. Boot the image
Insert the sdcard into Raspberry and power it up. Connect the device to the Raspberry and load module with command
sudo insmod wlan-usb.ko
The interface should appear:
pi@raspberrypi:~ $ ip l 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000 link/ether b8:27:eb:53:d0:9c brd ff:ff:ff:ff:ff:ff 3: wlan0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN mode DORMANT group default qlen 1000 link/ether b8:27:eb:06:85:c9 brd ff:ff:ff:ff:ff:ff 8: wlan1: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DORMANT group default qlen 3000 link/ether c4:93:00:0f:7e:58 brd ff:ff:ff:ff:ff:ff 9: p2p0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DORMANT group default qlen 3000 link/ether c6:93:00:90:7e:58 brd ff:ff:ff:ff:ff:ff