samsung-gts210velte: new device (SM-T819) (!346)

device is very similar to samsung-gts210vewifi (SM-T813),
just has additional LTE modem.

Have to use gcc6 for kernel compilation, otherwise get
'Unhandled fault: alignment fault (0x96000061) at 0xffffff8001787f4c'
errors on kernel startup, and device always reboots.

[ci:skip-build]: already built successfully in CI

device/device-samsung-gts210velte/90-sec_touchscreen.rules

@@ -0,0 +1,18 @@
+# * need ATTRS{name}=="sec_touchscreen" else device not detected as touchscreen
+# * give size hint (in mm) otherwise too small size is assumed
+# * to avoid palm detection, need LIBINPUT_ATTR_PALM_PRESSURE_THRESHOLD=256
+#   and libinput>1.10
+# * set calibration matrix for 270 degree clockwise rotation, see [1]
+# * remove TOUCHPAD, add TOUCHSCREEN to ensure that device is seen as
+#   touchscreen only, see [2]
+#
+# [1] https://wayland.freedesktop.org/libinput/doc/latest/udev_config.html
+# [2] https://wayland.freedesktop.org/libinput/doc/latest/udev_config.html#udev_device_type
+#
+ACTION=="add|change", SUBSYSTEM=="input", ATTRS{name}=="sec_touchscreen", \
+ENV{LIBINPUT_ATTR_SIZE_HINT}="190x140", \
+ENV{LIBINPUT_ATTR_PALM_PRESSURE_THRESHOLD}="256", \
+ENV{LIBINPUT_CALIBRATION_MATRIX}="0 1 0 -1 0 1", \
+ENV{ID_INPUT}="1", \
+ENV{ID_INPUT_TOUCHPAD}="", \
+ENV{ID_INPUT_TOUCHSCREEN}="1"

device/device-samsung-gts210velte/APKBUILD

@@ -0,0 +1,26 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-samsung-gts210velte"
+pkgdesc="Samsung Galaxy Tab S2 9.7 LTE (SM-T819)"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="aarch64"
+options="!check !archcheck"
+depends="postmarketos-base linux-samsung-gts210velte mkbootimg mesa-dri-swrast mdss-fb-init-hack"
+makedepends="devicepkg-dev"
+source="deviceinfo 90-sec_touchscreen.rules"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+	install -D -m644 "$srcdir"/90-sec_touchscreen.rules \
+		"$pkgdir"/etc/udev/rules.d/90-sec_touchscreen.rules
+}
+
+
+sha512sums="58ef7874dc145f613cfe88427eff21f49351427e2d20168bed64a5e70e684093940ad833f555fe8fadaa52c1a671ac43e396f26ae80ac73cbba500ee4ce9805c  deviceinfo
+0d23fae6de9b04a36f395068278b8a9054c33e435b24de943da1e55a0ee2d88ee932a3fd2f660596377b14474483edecb8357684f9b7bc2c53979c7f863fae52  90-sec_touchscreen.rules"

device/device-samsung-gts210velte/deviceinfo

@@ -0,0 +1,35 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Samsung Galaxy Tab S2 9.7 LTE (SM-T819)"
+deviceinfo_manufacturer="Samsung"
+deviceinfo_codename="samsung-gts210velte"
+deviceinfo_date="2016"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="2048"
+deviceinfo_screen_height="1536"
+deviceinfo_dev_touchscreen="/dev/input/event2"
+deviceinfo_dev_touchscreen_calibration="0 1 1.342 -1 0 1536"
+deviceinfo_dev_keyboard=""
+
+# Bootloader related
+deviceinfo_flash_method="heimdall-bootimg"
+deviceinfo_kernel_cmdline="console=null androidboot.hardware=qcom androidboot.wificountrycode=00 firmware_class.path=/lib/firmware/postmarketos msm_rtb.filter=0x237 ehci-hcd.park=3 androidboot.bootdevice=7824900.sdhci lpm_levels.sleep_disabled=1 earlyprintk androidboot.selinux=permissive buildvariant=userdebug androidboot.sec_atd.tty=/dev/ttyHSL0 sec_log=0x200000@0xa0200000 sec_dbg=0x1ff000@0xa0000000 androidboot.revision=4 androidboot.warranty_bit=1 androidboot.bootloader=T819XXS2BRB1 androidboot.boot_recovery=0 sec_debug.reset_reason=0x0 sec_dbg_ex_info=0x400@0xa01ff000 charging_mode=0x00 pmic_info=3 androidboot.debug_level=0x4f4c sec_debug.enable=0 sec_debug.enable_user=0 msm_rtb.enable=0 androidboot.cp_debug_level=0x55FF sec_debug.enable_cp_debug=0 vmalloc=450M sysscope=0xff000000 fg_reset=0 androidboot.security_mode=1526595584 androidboot.ucs_mode=0 androidboot.emmc=true gpt androidboot.baseband=msm lcd_id=0x424015 lcd_id2=0xffffff hall_ic=0x0 mdss_mdp.panel=1:dsi:0:ss_dsi_panel_ANA38401_AMS968HH01_QXGA:1:ss_dsi_panel_ANA38"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="true"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x01e00000"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_heimdall_partition_kernel="BOOT"
+deviceinfo_flash_heimdall_partition_system="SYSTEM"
+

device/linux-samsung-gts210velte/01_fix_msm_dba.patch

@@ -0,0 +1,13 @@
+diff --git a/drivers/video/msm/msm_dba/msm_dba.c b/drivers/video/msm/msm_dba/msm_dba.c
+index cc6512a..eb073a7 100644
+--- a/drivers/video/msm/msm_dba/msm_dba.c
++++ b/drivers/video/msm/msm_dba/msm_dba.c
+@@ -22,7 +22,7 @@
+ #include <linux/err.h>
+ 
+ #include <video/msm_dba.h>
+-#include <msm_dba_internal.h>
++#include "msm_dba_internal.h"
+ 
+ static DEFINE_MUTEX(register_mutex);
+ 

device/linux-samsung-gts210velte/APKBUILD

@@ -0,0 +1,79 @@
+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: (kernel/samsung/msm8976/)arch/arm64/configs/gts210velte_defconfig
+
+pkgname="linux-samsung-gts210velte"
+pkgver=3.10.102
+pkgrel=1
+pkgdesc="Samsung Galaxy Tab S2 9.7 LTE (SM-T819) kernel fork"
+arch="aarch64"
+_carch="arm64"
+_flavor="samsung-gts210velte"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev dtbtool gcc6 devicepkg-dev"
+
+# Compiler: this kernel was only tested with GCC6. Feel free to make a merge
+# request if you find out that it is booting working with newer GCCs as
+# well. See <https://postmarketos.org/vendorkernel> for instructions.
+if [ "${CC:0:5}" != "gcc6-" ]; then
+	CC="gcc6-$CC"
+	HOSTCC="gcc6-gcc"
+	CROSS_COMPILE="gcc6-$CROSS_COMPILE"
+fi
+
+# Source
+# gts210velte uses msm8976 kernel
+_repository="android_kernel_samsung_msm8976"
+_commit="f6ab8eed124e3adc1c90d9f3106abd21c0bd0397"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	01_fix_msm_dba.patch
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+
+	downstreamkernel_prepare "$srcdir" "$builddir" "$_config" "$_carch" "$HOSTCC"
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		C_INCLUDE_PATH="./arch/arm/mach-msm:./sound/soc/msm/qdsp6v2" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+	# As path is symlinked from arm64 to arm, dtb files end up below arm, not arm64
+	echo dtbTool -s 2048 -p "scripts/dtc/" -o "arch/arm64/boot/dt.img" "arch/arm/boot/dts/"
+	# Generate master DTB (deviceinfo_bootimg_qcdt).
+	dtbTool -s 2048 -p "scripts/dtc/" -o "arch/arm64/boot/dt.img" "arch/arm/boot/dts/"
+}
+
+package() {
+	# kernel.release
+	install -D "$builddir/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	# zImage (find the right one)
+	cd "$builddir/arch/$_carch/boot"
+	_target="$pkgdir/boot/vmlinuz-$_flavor"
+	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
+		[ -e "$_zimg" ] || continue
+		msg "zImage found: $_zimg"
+		install -Dm644 "$_zimg" "$_target"
+		break
+	done
+	if ! [ -e "$_target" ]; then
+		error "Could not find zImage in $PWD!"
+		return 1
+	fi
+	# Master DTB (deviceinfo_bootimg_qcdt)
+	install -Dm644 "$builddir/arch/arm64/boot/dt.img" \
+		"$pkgdir/boot/dt.img"
+}
+
+sha512sums="4fd6cbb31e389bdc50defb586d4a2d86d8bb51556b45b8f974c5ecb11de4900d36d0af65090f61664e32a48a7cef3f89f57157b460f4d6d5d05fa71e1400a099  linux-samsung-gts210velte-f6ab8eed124e3adc1c90d9f3106abd21c0bd0397.tar.gz
+0dc4d943e8effe6778d2c6f0353990757435f1fce59083b7bfaa834328fa91d7df3c2543758cbb20e7c115c9f28b7d9eb7e936024331af995f9da88223e45c6e  config-samsung-gts210velte.aarch64
+7e765cb696fa8c3dfbc305b05cbf1fad85fb9572613d5391e945341dae5974a745f4906c795dc841e5562b19ab77d5257f9741e514af2c2573aa4bb8b262ce51  01_fix_msm_dba.patch"