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fixes to not to rely on dkms anymore, kernel v5.8
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‎zappacor-build-5.8.18.sh‎

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#!/bin/bash
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# Written by: Rolando Zappacosta
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# rolando_dot_zappacosta_at_nokia_dot_com
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KERNEL_VERSION=5.8.18
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KERNEL_URL=https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-$KERNEL_VERSION.tar.xz
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#
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DRIVER_BCE_URL=https://github.com/t2linux/apple-bce-drv/archive/aur.zip
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DRIVER_IBRIDGE_URL=https://github.com/roadrunner2/macbook12-spi-driver/archive/mbp15.zip
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#
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ZAPPACOR_PATCHES_KERNEL=./zappacor-patches-kernel-$KERNEL_VERSION
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ZAPPACOR_PATCHES_BCE=./zappacor-patches-apple_bce-0.1.patch
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ZAPPACOR_DEFCONF=./zappacor-config-5.8.18
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ZAPPACOR_DOWNLOADS=./zappacor-downloads
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ZAPPACOR_WORKDIR=./zappacor-work-dir
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#####################################################
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################## DOWNLOAD KERNEL ##################
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#####################################################
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mkdir -p $ZAPPACOR_DOWNLOADS
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wget -c -P $ZAPPACOR_DOWNLOADS $KERNEL_URL
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mkdir -p $ZAPPACOR_WORKDIR
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tar xf $ZAPPACOR_DOWNLOADS/linux-$KERNEL_VERSION.tar.xz -C $ZAPPACOR_WORKDIR
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##################################################################
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################## APPLY UBUNTU AND SMC PATCHES ##################
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##################################################################
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# Ubuntu patches
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# From:
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# https://github.com/marcosfad/mbp-ubuntu-kernel/tree/master/patches
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# Excluded patches:
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# 0004-debian-changelog.patch (from Marcos)
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# Not creating:
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# custom-drivers.patch
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############################################################
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# SMC patches
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# From:
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# https://github.com/aunali1/linux-mbp-archaunali1/linux-mbp-arch
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# Excluded patches:
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# wifi.patch (not needed)
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# 000[0-9]* (excluded by Marcos, blindly doing the same):
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# 0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch
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# 0002-virt-vbox-Add-support-for-the-new-VBG_IOCTL_ACQUIRE_.patch
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#
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(ZAPPACOR_PATCHES_KERNEL=`readlink -f $ZAPPACOR_PATCHES_KERNEL`
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cd $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION
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# This patch is on $ZAPPACOR_PATCHES_KERNEL but it's filtered out by the grep command on the
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# following line (just in case since some folks told Marcos it breaks their systems):
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# 2001-drm-amd-display-Force-link_rate-as-LINK_RATE_RBR2-fo.patch
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for PATCH_FILE in `ls -1 $ZAPPACOR_PATCHES_KERNEL| grep -vE '[2]00[0-9]'`; do
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echo "### Applying patch: `basename $PATCH_FILE`"
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patch -p1 <$ZAPPACOR_PATCHES_KERNEL/$PATCH_FILE
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done
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)
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####################################################
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################## ADD BCE DRIVER ##################
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####################################################
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# From: https://github.com/aunali1/mbp2018-bridge-drv.git (redirects to https://github.com/t2linux/apple-bce-drv)
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# Will show up as:
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# -> Device Drivers │
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# -> Macintosh device drivers
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# -> Apple BCE driver (VHCI and Audio support)
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# Download and decompress it
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wget -c -O $ZAPPACOR_DOWNLOADS/apple-bce.zip $DRIVER_BCE_URL
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unzip -d $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/ $ZAPPACOR_DOWNLOADS/apple-bce.zip -x '*/.gitignore'
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mv $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/apple-bce-drv-aur $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/apple-bce
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# Apply this patch to add a modalias to the driver so it can get automatically loaded on boot on a Mac with the T2 chip
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(ZAPPACOR_PATCHES_BCE=`readlink -f $ZAPPACOR_PATCHES_BCE`
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cd $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION
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patch -p1 <$ZAPPACOR_PATCHES_BCE
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)
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# Create its Kconfig
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printf 'config APPLE_BCE
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\ttristate "Apple BCE driver (VHCI and Audio support)"
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\tdefault m
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\tdepends on X86
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\tselect SOUND
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\tselect SND
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\tselect SND_PCM
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\tselect SND_JACK
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\thelp
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\t VHCI and audio support on Apple MacBook models 2018 and later.
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\t The project that implements this driver is divided in three components:
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\t - BCE (Buffer Copy Engine): which establishes a basic communication
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\t channel with the T2 chip. This component is required by the other two:
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\t - VHCI (Virtual Host Controller Interface): Access to keyboard, mouse
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\t and other system devices depend on this virtual USB host controller
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\t - Audio: a driver for the T2 audio interface (currently only audio
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\t output is supported).
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\t
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\t Please note that system suspend and resume are currently *not* supported.
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\t
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\t If "M" is selected, the module will be called apple-bce.' >$ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/apple-bce/Kconfig
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# Edit its Makefile
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sed -i 's/obj-m/obj-$(CONFIG_APPLE_BCE)/g' $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/apple-bce/Makefile
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# Edit the kernel drivers Kconfig
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sed -i "\$i source \"drivers/macintosh/apple-bce/Kconfig\"\n" $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/Kconfig
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# Edit the kernel drivers Makefile
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echo 'obj-$(CONFIG_APPLE_BCE) += apple-bce/' >>$ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/Makefile
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#########################################################
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################## ADD IBRIDGE DRIVERS ##################
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#########################################################
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# From: https://github.com/roadrunner2/macbook12-spi-driver
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# Will show up as:
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# -> Device Drivers │
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# -> Macintosh device drivers
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# -> Apple iBridge driver (Touchbar and ALS support)
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# Download and decompress it
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wget -c -O $ZAPPACOR_DOWNLOADS/apple-ibridge.zip $DRIVER_IBRIDGE_URL
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unzip -d $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/ $ZAPPACOR_DOWNLOADS/apple-ibridge.zip -x '*/.gitignore'
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mv $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/macbook12-spi-driver-mbp15 $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/apple-ibridge
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# Create its Kconfig
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printf 'config APPLE_IBRIDGE
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\ttristate "Apple iBridge driver (Touchbar and ALS support)"
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\tdefault m
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\tdepends on X86
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\tselect HID
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\tselect IIO
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\tselect IIO_TRIGGERED_BUFFER
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\tselect IIO_BUFFER
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\tselect ACPI_ALS
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\thelp
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\t Work in progress driver for the Touchbar and ALS (Ambient
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\t Light Sensor) on 2019 and later Apple MacBook Pro computers.
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\t
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\t If "M" is selected, the modules will be called apple-ibridge,
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\t apple-ib-tb and apple-ib-als.' >$ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/apple-ibridge/Kconfig
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# Edit its Makefile file
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sed -i 's/obj-m/obj-$(CONFIG_APPLE_IBRIDGE)/g' $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/apple-ibridge/Makefile
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# Edit the kernel drivers Kconfig file
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sed -i "\$i source \"drivers/macintosh/apple-ibridge/Kconfig\"\n" $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/Kconfig
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# Edit the kernel drivers Makefile file
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echo 'obj-$(CONFIG_APPLE_IBRIDGE) += apple-ibridge/' >>$ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION/drivers/macintosh/Makefile
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#################################################################
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################## CONFIG AND BUILD THE KERNEL ##################
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#################################################################
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ZAPPACOR_DEFCONF=`readlink -f $ZAPPACOR_DEFCONF`
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cd $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION
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make clean
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# Create a default kernel config
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cp $ZAPPACOR_DEFCONF .config
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# Build it
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make -j8 all
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cd -
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######################################################################
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################## LOCAL COMPUTER TEST/INSTALLATION ##################
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######################################################################
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cd $ZAPPACOR_WORKDIR/linux-$KERNEL_VERSION
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# Should check if the headers are really needed or not (guess they're not)
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make headers ; make headers_install
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make modules_install
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make install
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cd -
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# Need this for the Broadcom WiFi on my *HP laptop* to work (these following steps are *not* related to any Mac at all)
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wget -c -P $ZAPPACOR_DOWNLOADS https://launchpad.net/ubuntu/+source/bcmwl/6.30.223.271+bdcom-0ubuntu7/+build/20102161/+files/bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu7_amd64.deb
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apt install $ZAPPACOR_DOWNLOADS/bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu7_amd64.deb
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