Add scripts to automate firmware and sysroot build process

Related to #27

build_scripts/build-firmware.sh

@@ -0,0 +1,138 @@
+#!/bin/bash
+
+# This script creates our custom firmware image
+# based on analog decices plutosdr-fw
+
+# Required plutosdr-fw version
+REQUIRED_PLUTOSDR_FW_VERSION="v0.32"
+
+
+#Check if env variable for Xilinx tools exists
+: "${VIVADO_SETTINGS?Need to set VIVADO_SETTINGS (e.g. /opt/Xilinx/Vivado/2019.1/settings64.sh)}"
+source $VIVADO_SETTINGS || (echo "Specified wrong Vivado settings path?"; exit 1;)
+
+#Check if env variable for Path to pluto sysroot directory exists
+: "${PLUTO_SYSROOT_DIR?Need to set PLUTO_SYSROOT_DIR}"
+
+SCRIPT_DIR=`pwd`/`dirname "$0"`
+cd $SCRIPT_DIR || exit 1
+
+# Download the current plutosdr-fw image
+if [[ ! -d plutosdr-fw ]]
+then
+  echo "plutosdr-fw repository not found. Downloading it..."
+  git clone --recurse-submodules -j8 https://github.com/analogdevicesinc/plutosdr-fw.git
+else
+  echo "plutosdr-fw already exists. Skipping git clone."
+fi
+
+
+cd plutosdr-fw ||  (echo "Failed to cd"; exit 1)
+if [[ $REQUIRED_PLUTOSDR_FW_VERSION != $(git describe --tags) ]];
+then
+  echo "Got wrong plutosdr-fw version. Checking out "$REQUIRED_PLUTOSDR_FW_VERSION
+  git reset --hard
+  git submodule foreach --recursive git reset --hard
+  git checkout $PLUTOSDR_FW_VERSION -b master
+  git submodule update --recursive
+
+  # Changes to buildroot
+  BR_CONFIG=buildroot/configs/zynq_pluto_defconfig
+  echo 'BR2_ROOTFS_OVERLAY="'"$PLUTOSDR_FW_ROOTOVERLAY"'"' >> $BR_CONFIG
+  echo 'BR2_PACKAGE_LIBCONFIG=y' >> $BR_CONFIG
+  echo 'BR2_PACKAGE_FFTW_SINGLE=y' >> $BR_CONFIG
+  echo 'BR2_PACKAGE_TUNCTL=y' >> $BR_CONFIG
+  echo 'BR2_PACKAGE_IPERF3=y' >> $BR_CONFIG
+  echo 'BR2_PACKAGE_LLDPD=y' >> $BR_CONFIG
+
+  # Changes to the linux kernel
+  echo "Applying PREEMPT_RT kernel patch..."
+  wget https://mirrors.edge.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patch-4.19-rt1.patch.gz
+  gunzip patch-4.19-rt1.patch.gz
+  cd linux || exit 1
+  patch -p1 < ../patch-4.19-rt1.patch
+
+  # Configure RT kernel
+  KERNEL_CONFIG=arch/arm/configs/zynq_pluto_defconfig
+  echo "CONFIG_TUN=y" >> $KERNEL_CONFIG
+  echo "CONFIG_PREEMPT_RT_FULL=y" >> $KERNEL_CONFIG
+else
+  echo "plutosdr-fw already seems to be configured."
+fi
+
+
+## Init rootfs overlay structure
+PLUTOSDR_FW_ROOTOVERLAY=$SCRIPT_DIR/plutosdr-fw/rootfs-overlay
+if [[ ! -d $PLUTOSDR_FW_ROOTOVERLAY ]]
+then
+    mkdir $PLUTOSDR_FW_ROOTOVERLAY
+fi
+if [[ ! -d $PLUTOSDR_FW_ROOTOVERLAY/usr/ ]]
+then
+    mkdir $PLUTOSDR_FW_ROOTOVERLAY/usr/
+fi
+if [[ ! -d $PLUTOSDR_FW_ROOTOVERLAY/usr/lib/ ]]
+then
+    mkdir $PLUTOSDR_FW_ROOTOVERLAY/usr/lib/
+fi
+if [[ ! -d $PLUTOSDR_FW_ROOTOVERLAY/root/ ]]
+then
+    mkdir $PLUTOSDR_FW_ROOTOVERLAY/root/
+fi
+if [[ ! -d $PLUTOSDR_FW_ROOTOVERLAY/etc/ ]]
+then
+    mkdir $PLUTOSDR_FW_ROOTOVERLAY/etc/
+fi
+if [[ ! -d $PLUTOSDR_FW_ROOTOVERLAY/etc/init.d/ ]]
+then
+    mkdir $PLUTOSDR_FW_ROOTOVERLAY/etc/init.d/
+fi
+
+cd $SCRIPT_DIR || exit 1
+
+## Create sysroot
+./create_sysroot.sh || exit 1
+
+# Copy libfec and liquid-dsp to rootfs overlay. These libs are not built with buildroot
+# so we have to manually copy them.
+cp $PLUTO_SYSROOT_DIR/usr/lib/libliquid.so $PLUTOSDR_FW_ROOTOVERLAY/usr/lib/
+cp $PLUTO_SYSROOT_DIR/usr/lib/libfec.so $PLUTOSDR_FW_ROOTOVERLAY/usr/lib
+
+## Build Main Apps
+echo "Building main application..."
+cd $SCRIPT_DIR/../ || exit 1
+if [[ ! -d cmake-build ]]
+then
+    mkdir cmake-build
+fi
+cd cmake-build || exit 1
+cmake -DCMAKE_TOOLCHAIN_FILE=CmakeArmToolchain.cmake ..
+make basestation
+make client
+make client-calib
+cp basestation $PLUTOSDR_FW_ROOTOVERLAY/root/
+cp client $PLUTOSDR_FW_ROOTOVERLAY/root/
+cp client-calib $PLUTOSDR_FW_ROOTOVERLAY/root/
+cd ..
+
+# Create VERSION file
+touch $PLUTOSDR_FW_ROOTOVERLAY/root/VERSION
+echo "hnap "`git describe --tags` > $PLUTOSDR_FW_ROOTOVERLAY/root/VERSION
+echo "plutosdr-fw "$PLUTOSDR_FW_VERSION >> $PLUTOSDR_FW_ROOTOVERLAY/root/VERSION
+
+## Copy network init script to rootfs
+echo "Copy network autoconfig script to rootfs..."
+cp startup_scripts/* $PLUTOSDR_FW_ROOTOVERLAY/etc/init.d/
+
+
+## Copy FIR filter to rootfs
+echo "Copy FIR filter coefficients to rootfs..."
+cp AD9361_256kSPS.ftr $PLUTOSDR_FW_ROOTOVERLAY/root/
+
+## Copy the default configuration file to rootfs
+echo "Copy config.txt to rootfs..."
+cp config.txt $PLUTOSDR_FW_ROOTOVERLAY/root/
+
+cd $SCRIPT_DIR/plutosdr-fw/ || exit 1
+make || exit 1
+cp build/pluto.frm ../

build_scripts/create_sysroot.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+# This script customizes the plutosdr-fw sysroot image to our needs.
+# NOTE: you only need this script if you want to rebuild the sysroot
+#       folder, i.e. after a new release of the plutosdr-fw!
+#       Usually it is enough to download an already customized sysroot
+#       from the releases page.
+
+
+#Check if env variable for Path to pluto sysroot directory exists
+: "${PLUTO_SYSROOT_DIR?Need to set PLUTO_SYSROOT_DIR}"
+
+SCRIPT_DIR=`pwd`/`dirname "$0"`
+cd $SCRIPT_DIR || exit 1
+
+mkdir .tmp_create_sysroot
+cd .tmp_create_sysroot || exit 1
+
+echo "Downloading fftw3"
+wget http://www.fftw.org/fftw-3.3.8.tar.gz
+tar -xzf fftw-3.3.8.tar.gz
+
+echo "Installing fftw3"
+cd  fftw-3.3.8 || exit 1
+./configure arm --enable-float --enable-shared --host=arm-linux-gnueabihf --prefix="$PLUTO_SYSROOT_DIR/usr/" CC="arm-linux-gnueabihf-gcc --sysroot=$PLUTO_SYSROOT_DIR/"
+make install
+
+echo "Downloading libconfig"
+wget https://hyperrealm.github.io/libconfig/dist/libconfig-1.7.2.tar.gz
+tar -xzf libconfig-1.7.2.tar.gz
+echo "Installing libconfig"
+cd libconfig-1.7.2 || exit 1
+./configure --host=arm-linux-gnueabihf --prefix="$PLUTO_SYSROOT_DIR/usr/" CC="arm-linux-gnueabihf-gcc --sysroot=$PLUTO_SYSROOT_DIR/"
+make install
+
+cd $SCRIPT_DIR/../libfec || exit 1
+echo "Installing libfec..."
+./configure arm --host=arm-linux-gnueabihf --prefix="$PLUTO_SYSROOT_DIR/usr/" CC="arm-linux-gnueabihf-gcc --sysroot=$PLUTO_SYSROOT_DIR/"
+make install
+
+echo "Installing liquid-dsp..."
+cd ../liquid-dsp || exit 1
+./bootstrap.sh
+./configure arm --host=arm-linux-gnueabihf  --prefix="$PLUTO_SYSROOT_DIR/usr/" CC="arm-linux-gnueabihf-gcc --sysroot=$PLUTO_SYSROOT_DIR"
+# Configure somehow does not correctly identify malloc and realloc
+# and redefines them in the generated config.h script as rpl_malloc.
+# This makes the code unusable, therefore we delete this:
+sed -i '/rpl_realloc/d' config.h
+sed -i '/rpl_malloc/d' config.h
+
+make install
+
+echo "Cleaning up..."
+cd $SCRIPT_DIR || exit 1
+rm -R .tmp_create_sysroot
+
+SYSROOT_NAME="sysroot-custom-"`git describe --tags`".tar.gz"
+tar -czf $SYSROOT_NAME $PLUTO_SYSROOT_DIR
+echo "Created sysroot archive "$SYSROOT_NAME
+exit 0