add Odroid XU4 4.14 kernel patch

scripts/patch-realsense-ubuntu-odroid-xu4-4.14.sh

@@ -0,0 +1,191 @@
+#!/bin/bash
+
+#This script is almost an exact copy of the patch-realsense-ubuntu-lts.sh script, tested on 4.14.47-132.
+#There only two small additions / checks. Actually, this script also works for normal ubuntu-lts
+
+#Break execution on any error received
+set -e
+
+#Locally suppress stderr to avoid raising not relevant messages
+exec 3>&2
+exec 2> /dev/null
+con_dev=$(ls /dev/video* | wc -l)
+exec 2>&3
+
+if [ $con_dev -ne 0 ];
+then
+	echo -e "\e[32m"
+	read -p "Remove all RealSense cameras attached. Hit any key when ready"
+	echo -e "\e[0m"
+fi
+
+#Include usability functions
+source ./scripts/patch-utils.sh
+
+# Get the required tools and headers to build the kernel
+#sudo apt-get install linux-headers-generic build-essential git
+sudo apt-get install build-essential git
+
+#Packages to build the patched modules
+require_package libusb-1.0-0-dev
+require_package libssl-dev
+
+retpoline_retrofit=0
+
+LINUX_BRANCH=$(uname -r)
+PLATFORM=$(uname -n)
+if [ "$PLATFORM" = "odroid" ]; then
+	#kernel_branch="hwe"
+	#kernel_branch=$LINUX_BRANCH
+	kernel_branch="master"
+else
+	kernel_branch=$(choose_kernel_branch $LINUX_BRANCH)	
+fi
+echo "Kernel branch: " $kernel_branch
+# Construct branch name from distribution codename {xenial,bionic,..} and kernel version
+#ubuntu_codename=`. /etc/os-release; echo ${UBUNTU_CODENAME/*, /}`
+#if [ -z "$UBUNTU_CODENAME" ];
+#then
+	# Trusty Tahr shall use xenial code base
+#	ubuntu_codename="xenial"
+#	retpoline_retrofit=1
+#fi
+ubuntu_codename="bionic"
+
+#kernel_name="ubuntu-${ubuntu_codename}-$kernel_branch"
+kernel_name="odroid_bionic"
+
+#Distribution-specific packages
+if [ ${ubuntu_codename} == "bionic" ];
+then
+	require_package libelf-dev
+	require_package elfutils
+fi
+
+
+# Get the linux kernel and change into source tree
+#[ ! -d ${kernel_name} ] && git clone -b $kernel_branch git://#kernel.ubuntu.com/ubuntu/ubuntu-${ubuntu_codename}.git --depth #1 ./${kernel_name}
+[ ! -d ${kernel_name} ] && git clone --depth 1 https://github.com/hardkernel/linux -b odroidxu4-4.14.y ./${kernel_name}
+cd ${kernel_name}
+
+# Verify that there are no trailing changes., warn the user to make corrective action if needed
+if [ $(git status | grep 'modified:' | wc -l) -ne 0 ];
+then
+	echo -e "\e[36mThe kernel has modified files:\e[0m"
+	git status | grep 'modified:'
+	echo -e "\e[36mProceeding will reset all local kernel changes. Press 'n' within 10 seconds to abort the operation"
+	set +e
+	read -n 1 -t 10 -r -p "Do you want to proceed? [Y/n]" response
+	set -e
+	response=${response,,}    # tolower
+	if [[ $response =~ ^(n|N)$ ]]; 
+	then
+		echo -e "\e[41mScript has been aborted on user requiest. Please resolve the modified files are rerun\e[0m"
+		exit 1
+	else
+		echo -e "\e[0m"
+		echo -e "\e[32mUpdate the folder content with the latest from mainline branch\e[0m"
+		#git fetch origin $kernel_branch --depth 1
+		git fetch origin odroidxu4-4.14.y --depth 1
+		printf "Resetting local changes in %s folder\n " ${kernel_name}
+		#git reset --hard $kernel_branch
+        git reset --hard odroidxu4-4.14.y
+	fi
+fi
+
+#Check if we need to apply patches or get reload stock drivers (Developers' option)
+[ "$#" -ne 0 -a "$1" == "reset" ] && reset_driver=1 || reset_driver=0
+
+if [ $reset_driver -eq 1 ];
+then 
+	echo -e "\e[43mUser requested to rebuild and reinstall ubuntu-${ubuntu_codename} stock drivers\e[0m"
+else
+	# Patching kernel for RealSense devices
+	echo -e "\e[32mApplying realsense-uvc patch\e[0m"
+	patch -p1 < ../scripts/realsense-camera-formats_ubuntu-${ubuntu_codename}-${kernel_branch}.patch
+	echo -e "\e[32mApplying realsense-metadata patch\e[0m"
+	patch -p1 < ../scripts/realsense-metadata-ubuntu-${ubuntu_codename}-${kernel_branch}.patch
+	echo -e "\e[32mApplying realsense-hid patch\e[0m"
+	patch -p1 < ../scripts/realsense-hid-ubuntu-${ubuntu_codename}-${kernel_branch}.patch
+	echo -e "\e[32mApplying realsense-powerlinefrequency-fix patch\e[0m"
+	patch -p1 < ../scripts/realsense-powerlinefrequency-control-fix.patch
+fi
+
+# Copy configuration
+sudo cp /usr/src/linux-$(uname -r)/.config .
+sudo cp /usr/src/linux-$(uname -r)/Module.symvers .
+
+# Basic build for kernel modules
+echo -e "\e[32mPrepare kernel modules configuration\e[0m"
+#Retpoline script manual retrieval. based on https://github.com/IntelRealSense/librealsense/issues/1493
+#Required since the retpoline patches were introduced into Ubuntu kernels
+if [ ! -f scripts/ubuntu-retpoline-extract-one ]; then
+	pwd
+	for f in $(find . -name 'retpoline-extract-one'); do cp ${f} scripts/ubuntu-retpoline-extract-one; done;
+	echo $$$
+fi
+#sudo make silentoldconfig modules_prepare
+sudo make odroidxu4_defconfig modules_prepare
+
+#Vermagic identity is required
+IFS='.' read -a kernel_version <<< "$LINUX_BRANCH"
+sudo sed -i "s/\".*\"/\"$LINUX_BRANCH\"/g" ./include/generated/utsrelease.h
+sudo sed -i "s/.*/$LINUX_BRANCH/g" ./include/config/kernel.release
+#Patch for Trusty Tahr (Ubuntu 14.05) with GCC not retrofitted with the retpoline patch.
+[ $retpoline_retrofit -eq 1 ] && sudo sed -i "s/#ifdef RETPOLINE/#if (1)/g" ./include/linux/vermagic.h
+
+# Build the uvc, accel and gyro modules
+KBASE=`pwd`
+cd drivers/media/usb/uvc
+sudo cp $KBASE/Module.symvers .
+
+echo -e "\e[32mCompiling uvc module\e[0m"
+sudo make -j -C $KBASE M=$KBASE/drivers/media/usb/uvc/ modules
+echo -e "\e[32mCompiling accelerometer and gyro modules\e[0m"
+sudo make -j -C $KBASE M=$KBASE/drivers/iio/accel modules
+sudo make -j -C $KBASE M=$KBASE/drivers/iio/gyro modules
+echo -e "\e[32mCompiling v4l2-core modules\e[0m"
+sudo make -j -C $KBASE M=$KBASE/drivers/media/v4l2-core modules
+
+# Copy and load the patched modules to a sane location
+if [ -f $KBASE/drivers/media/usb/uvc/uvcvideo.ko ]; then
+	echo "Copying uvcvideo.ko"
+	sudo cp $KBASE/drivers/media/usb/uvc/uvcvideo.ko ~/$LINUX_BRANCH-uvcvideo.ko
+	try_module_insert uvcvideo ~/$LINUX_BRANCH-uvcvideo.ko /lib/modules/`uname -r`/kernel/drivers/media/usb/uvc/uvcvideo.ko
+fi
+
+#if [ -f $KBASE/drivers/iio/accel/hid-sensor-accel-3d.ko ]; then
+#	echo "Copying hid-sensor-accel-3d.ko" 
+#	sudo cp $KBASE/drivers/iio/accel/hid-sensor-accel-3d.ko ~/$LINUX_BRANCH-hid-sensor-accel-3d.ko
+#	try_module_insert hid_sensor_accel_3d ~/$LINUX_BRANCH-hid-sensor-accel-3d.ko /lib/modules/#`uname -r`/kernel/drivers/iio/accel/hid-sensor-accel-3d.ko
+#fi
+#if [ -f $KBASE/drivers/iio/gyro/hid-sensor-gyro-3d.ko ]; then
+#	echo "Copying hid-sensor-gyro-3d.ko"
+#	sudo cp $KBASE/drivers/iio/gyro/hid-sensor-gyro-3d.ko ~/$LINUX_BRANCH-hid-sensor-gyro-3d.ko
+#	try_module_insert hid_sensor_gyro_3d ~/$LINUX_BRANCH-hid-sensor-gyro-3d.ko /lib/modules/`uname -#r`/kernel/drivers/iio/gyro/hid-sensor-gyro-3d.ko
+#fi
+#if [ -f $KBASE/drivers/media/v4l2-core/videodev.ko ]; then
+if [ -f $KBASE/drivers/media/v4l2-core/videobuf-core.ko ]; then
+	echo "Copying video drivers"
+	sudo cp $KBASE/drivers/media/v4l2-core/videobuf-core.ko ~/$LINUX_BRANCH-videobuf-core.ko
+	try_module_insert videobuf-core ~/$LINUX_BRANCH-videobuf-core.ko /lib/modules/`uname -r`/kernel/drivers/media/v4l2-core/videobuf-core.ko
+
+	sudo cp $KBASE/drivers/media/v4l2-core/videobuf-vmalloc.ko ~/$LINUX_BRANCH-videobuf-vmalloc.ko
+	try_module_insert videobuf-vmalloc ~/$LINUX_BRANCH-videobuf-vmalloc.ko /lib/modules/`uname -r`/kernel/drivers/media/v4l2-core/videobuf-vmalloc.ko
+
+	sudo cp $KBASE/drivers/media/v4l2-core/videobuf-dvb.ko ~/$LINUX_BRANCH-videobuf-dvb.ko
+	try_module_insert videobuf-dvb ~/$LINUX_BRANCH-videobuf-dvb.ko /lib/modules/`uname -r`/kernel/drivers/media/v4l2-core/videobuf-dvb.ko
+
+	sudo cp $KBASE/drivers/media/v4l2-core/videobuf2-vmalloc.ko ~/$LINUX_BRANCH-videobuf2-vmalloc.ko
+	try_module_insert videobuf2-vmalloc ~/$LINUX_BRANCH-videobuf2-vmalloc.ko /lib/modules/`uname -r`/kernel/drivers/media/v4l2-core/videobuf2-vmalloc.ko
+
+	sudo cp $KBASE/drivers/media/v4l2-core/v4l2-fwnode.ko ~/$LINUX_BRANCH-v4l2-fwnode.ko
+	try_module_insert v4l2-fwnode ~/$LINUX_BRANCH-v4l2-fwnode.ko /lib/modules/`uname -r`/kernel/drivers/media/v4l2-core/v4l2-fwnode.ko
+
+	sudo cp $KBASE/drivers/media/v4l2-core/tuner.ko ~/$LINUX_BRANCH-tuner.ko
+	try_module_insert tuner ~/$LINUX_BRANCH-tuner.ko /lib/modules/`uname -r`/kernel/drivers/media/v4l2-core/tuner.ko
+fi
+echo -e "\e[32mPatched kernels modules were created successfully\n\e[0m"
+
+
+echo -e "\e[92m\n\e[1mScript has completed. Please consult the installation guide for further instruction.\n\e[0m"