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bpatch
executable file
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bpatch
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#!/bin/bash
##############################################################################################################
# This is a simple script to patch the bluetooth driver for Linux kernel
# to make it working with mt7630e driver
#
# Author:
# tobiasBora (https://github.com/tobiasBora)
# Code reviewed and improved by:
# Md Jahidul Hamid (https://github.com/neurobin)
#
##############################################################################################################
p_name="$(basename "$BASH_SOURCE")"
p_version='1.0.1'
p_author='tobiasBora (https://github.com/tobiasBora)'
p_c_author='Md Jahidul Hamid (https://github.com/neurobin)'
p_bugt='https://github.com/neurobin/MT7630E/issues'
ver_info="
Name : $p_name
Version : $p_version
Author : $p_author
Co-author : $p_c_author
Bug report : $p_bugt
"
help="
######################### bpatch ##############################
############# Script to patch bluetooth ################
###############################################################
# Usage:
# $p_name [ -sd [sdir], -t, -v, -h]
#
# Options:
# [ -sd [sdir] ] : kernel soruce dir
# [ -t, --test ] : compile but do not install the patch
@ [ -u, --uninstall ] : uninstall the patch
# [ -h, --help ] : show help
# [ -v, --version] : show version info
#
# To apply the patch manually read the doc:
# https://github.com/neurobin/MT7630E/wiki/Get-bluetooth-working-in-Linux-kernel--with-mt7630e
###############################################################
"
##############################################################################################################
set -e
BASEDIR="$(dirname "$BASH_SOURCE")"
cd "$BASEDIR"
chkroot(){
if (( $EUID != 0 )); then
printf "\n--- Sorry! Run with root privilege\n\n"
exit 1
fi
}
uninstall(){
echo "*** Stoping Bluetooth..."
service bluetooth stop ||
systemctl stop bluetooth.service || true
bdir="/lib/modules/$(uname -r)/kernel/drivers/bluetooth"
if [ -f "$bdir/btusb.ko.old" ];
then
echo "*** Old installation found, saving current..."
cp "$bdir/btusb.ko" "$bdir/btusb.ko.old2"
echo "*** And restoring the old one..."
cp "$bdir/btusb.ko.old" "$bdir/btusb.ko"
#mv -f "$bdir/btusb.ko.old2" "$bdir/btusb.ko.old"
echo "*** Done ! ***"
else
echo "... No older installation found (skipped)..."
fi
echo '*** trying to restart bluetooth ...'
service bluetooth start ||
systemctl restart bluetooth.service
}
###################### Arg parse #########################
sdir="" # kernel source dir
skipd=false # whether to download the source
test=false # only compile the patch without installing it
for op in "$@";do
case "$op" in
-v|--version)
echo "$ver_info"
shift
exit 0
;;
-h|--help)
echo "$help"
shift
exit 0
;;
-sd|--source-dir)
shift
if [[ "$1" != "" ]]; then
sdir="${1/%\//}"
skipd=true
if [[ ! -d "$sdir" ]]; then
echo "--- Directory doesn't exist: $sdir "
exit 1
fi
shift
else
echo "--- Arg missing for -sd option"
exit 1
fi
;;
-t|--test)
test=true
shift
;;
-u|--uninstall)
chkroot
uninstall
shift
exit 0
;;
-*)
echo "--- Invalid option: $1"
shift
exit 1
;;
esac
done
############################################################
chkroot # check for root privilege
echo "*** Stoping Bluetooth..."
service bluetooth stop ||
systemctl stop bluetooth.service || true
echo "*** Installing kernel headers..."
apt-get update || true
apt-get install build-essential linux-headers-$(uname -r)
mkdir -p build/
cd build/
rm -rf build_$(uname -r)
mkdir build_$(uname -r)
cd build_$(uname -r)
if ! $skipd; then
echo "*** Downloading kernel source..."
apt-get source linux-image-$(uname -r) # Get the kernel source code
fi
echo "*** Building kernel dependencies... (may be facultative)"
apt-get build-dep linux-image-$(uname -r) || true # Build kernel dependencies
if ! $skipd; then
cd $(ls -d */ | head -1)
else
cd "$sdir"
fi
sdir="$(pwd -P)"
echo "*** Copying configuration..."
cp "/boot/config-$(uname -r)" .config
cp "/usr/src/linux-headers-$(uname -r)/Module.symvers" .
cd drivers/bluetooth/
echo "*** Patching..."
cp btusb.c btusb.c.old
echo '*** Adding BTUSB_MEDIATEK definiton ...'
if ! grep -e "^[[:blank:]]*#define BTUSB_MEDIATEK[[:blank:]].*" btusb.c >/dev/null; then
interestingLine="$(grep -e "^[[:blank:]]*#define BTUSB_.*0x[1248]0*[[:blank:]]*$" btusb.c | tail -1)"
echo "interestingLine = $interestingLine"
interestingNumber=$(echo "$interestingLine" | sed 's/^.*\(0x[0-9]*\)[[:blank:]]*$/\1/g')
echo "interestingNumber = $interestingNumber"
newNumber=$(printf "0x%X\n" $(($interestingNumber + $interestingNumber)))
echo "*** Adding the line #define BTUSB_MEDIATEK $newNumber ..."
sed -i "s/$interestingLine/&\n#define BTUSB_MEDIATEK $newNumber/" btusb.c
else
echo '... A definition for BTUSB_MEDIATEK exists (skipped)'
fi
echo '*** Adding .driver_info = BTUSB_MEDIATEK (if not exists already)...'
sed -i "s/{ USB_DEVICE(0x0e8d, 0x763f) },/{ USB_DEVICE(0x0e8d, 0x763f), .driver_info = BTUSB_MEDIATEK },/" btusb.c
echo '*** Adding BTUSB_MEDIATEK condition ...'
#sed -i "s/set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, \&hdev->quirks);/&\n }\n if (id->driver_info \& BTUSB_MEDIATEK) {\n set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, \&hdev->quirks);\n/" btusb.c
patch='\n\tif (id->driver_info \& BTUSB_MEDIATEK) { \n\t\tset_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, \&hdev->quirks);\n\t}\n'
if ! grep -A2 -e 'if (id->driver_info & BTUSB_MEDIATEK)' btusb.c |
grep -e 'set_bit(HCI_QUIRK_BROKEN_LOCAL_COMMANDS, &hdev->quirks);' >/dev/null; then
sed -i "s/^[[:blank:]]*if[[:blank:]]*(id->driver_info & BTUSB_INTEL)/$patch\n&/" btusb.c
else
echo '... BTUSB_MEDIATEK condition was already added (skipped)'
fi
#cd ../../
cd "$sdir"
echo "*** make prepare"
make prepare
echo "*** make modules_prepare"
make modules_prepare
echo "*** make M=scripts/mod"
make M=scripts/mod
echo "*** make M=drivers/bluetooth/ modules"
make M=drivers/bluetooth/ modules
if ! $test; then
echo "*** Saving old .ko"
cp -f /lib/modules/$(uname -r)/kernel/drivers/bluetooth/btusb.ko /lib/modules/$(uname -r)/kernel/drivers/bluetooth/btusb.ko.old
echo "*** Copying new .ko"
cp drivers/bluetooth/btusb.ko /lib/modules/$(uname -r)/kernel/drivers/bluetooth
fi
echo "
*** Starting bluetooth (you may need a reboot to have bluetooth enabled).
===== /\ =============================================
=== / \ In order to have bluetooth enabled =====
=== / | \ you should reboot your computer. =====
=== /___o__\===========================================
I will try to load it, but if nothing happens, please reboot.
"
service bluetooth start ||
systemctl restart bluetooth.service