Added LG G Watch R (lg-lenok) Support (#489)

* added LG G Watch R (also compatible with Urbane 1)
* added frame buffer fix script to install
* Added missing refreshrate patch
* Added xwayland

device/device-lg-lenok/90-android-touch-dev.rules

+# use 'weston-calibrator' to calibrate the touchscreen!
+SUBSYSTEM=="input", ATTRS{name}=="synaptics_rmi4_i2c", \
+ENV{ID_INPUT}="1", ENV{ID_INPUT_TOUCHSCREEN}="1" \
+ENV{WL_CALIBRATION}="0.982113 -0.006129 1.983124 -0.002560 1.000800 -6.012451"

device/device-lg-lenok/APKBUILD

+pkgname=device-lg-lenok
+pkgver=1
+pkgrel=2
+pkgdesc="LG G Watch R"
+url="https://github.com/postmarketOS"
+arch="noarch"
+license="MIT"
+depends="linux-lg-lenok mkbootimg"
+makedepends=""
+install=""
+subpackages=""
+source="deviceinfo initfs-hook.sh 90-android-touch-dev.rules fb_fix.sh"
+options="!check"
+
+build() {
+	return 0
+}
+
+package() {
+	install -D -m644 "$srcdir"/deviceinfo \
+		"$pkgdir"/etc/deviceinfo
+	install -D -m644 "$srcdir"/initfs-hook.sh \
+		"$pkgdir"/etc/postmarketos-mkinitfs/hooks/00-${pkgname}.sh
+	install -D -m644 "$srcdir"/90-android-touch-dev.rules \
+		"$pkgdir"/etc/udev/rules.d/90-android-touch-dev.rules
+	install -D -m644 "$srcdir"/fb_fix.sh \
+		"$pkgdir"/etc/profile.d/fb_fix.sh
+}
+
+sha512sums="9dba843fba4f942587e858631939c6a08f30c23a08e29028a8739d5ac0a8c5e67e6df18758c3f2e75f48eab9181300438ec604ce259b5d7342ce6a1d0a5e2a66  deviceinfo
+e2b0a6c02a0073094439aa7014139fa567b8375b442eaad00d6c1b90a1fd2d9bc73bf4546137fe2dd5c9de03a6ec383173d1b4ad3ab975850484c4e1342cfb74  initfs-hook.sh
+a36ba9017df3b4be233783096c303abafa873dcdf50f6357b82f3c5526fd161a1914dafe143377cb5982955108b987890638b51911d0dd339172554e39a82d9f  90-android-touch-dev.rules
+f623da68a750ba5dd367d131841aca182b5041292c800e0c919d25187305546e9e42b876cadadc2f56b73e0e6b718a9149a817f5d571e015f7c9467f7387aa61  fb_fix.sh"

device/device-lg-lenok/deviceinfo

+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="G Watch R"
+deviceinfo_manufacturer="LG"
+deviceinfo_date=""
+deviceinfo_keyboard="false"
+deviceinfo_nonfree="????"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_external_disk="false"
+deviceinfo_external_disk_install="false"
+deviceinfo_flash_methods="fastboot"
+deviceinfo_arch="armhf"
+
+# Splash screen
+deviceinfo_screen_width="320"
+deviceinfo_screen_height="320"
+
+# Fastboot related
+deviceinfo_generate_bootimg="true"
+deviceinfo_flash_offset_kernel="0x0000000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x01e00000"
+deviceinfo_flash_pagesize="2048"
+
+deviceinfo_weston_core_modules="xwayland.so"

device/device-lg-lenok/fb_fix.sh

+main() {
+        # Wait untill graphical enviroment is running
+        sleep 5
+        # Workaround for buggy graphics driver
+        while [ ! ];
+        do
+                echo '0,0' > /sys/class/graphics/fb0/pan;
+        done
+}
+
+# tty1 autologin
+if [ $(tty) = "/dev/tty1" ]; then
+        # Run in background, to make /etc/profile not wait for it to finish
+        main &
+fi

device/device-lg-lenok/initfs-hook.sh

+#!/bin/sh
+
+# set framebuffer resolution
+cat /sys/class/graphics/fb0/modes > /sys/class/graphics/fb0/mode
+echo 320,320 > /sys/class/graphics/fb0/virtual_size

device/linux-lg-lenok/APKBUILD

+# APKBUILD based on linux-vanilla aport. Changes:
+# - disabled module installation
+# - add !check !tracedeps
+# - package: just install zimage and kernel.release, because the kernel config
+#	does not generate modules or dtb files
+# - do not create -dev subpackage (makes no sense without module support)
+#
+# Changes:
+# - enable devtmpfs (needed for udev -> touch support in weston)
+# - enabled CONFIG_VT (needed for weston to work)
+# - Added ata2001's refresh rate fix for 60hz (otherwise screen is stuck at 15hz)
+# - Enable generation of dtb
+
+_vendor=lge
+_flavor=lg-lenok
+_hash="f383838578f56e03687c81ac7d6de12eafbd85f4"
+_config="config-${_flavor}.armhf"
+
+pkgname=linux-${_flavor}
+pkgver=3.10.105
+case $pkgver in
+	*.*.*)  _kernver=${pkgver%.*};;
+	*.*) _kernver=$pkgver;;
+esac
+pkgrel=4
+arch="armhf"
+pkgdesc="G Watch R kernel"
+url="https://github.com/Tsunamical/kernel_lge_bass-lenok"
+depends="postmarketos-mkinitfs"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev"
+options="!strip !check !tracedeps"
+install=
+source="
+	$pkgname-$_hash.tar.gz::${url}/archive/${_hash}.tar.gz
+	$_config
+	compiler-gcc6.h
+	refresh_rate.patch
+"
+subpackages=""
+license="GPL2"
+
+_abi_release=${pkgver}
+_carch="arm"
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+ksrcdir="$srcdir/kernel_lge_bass-lenok-${_hash}"
+
+prepare() {
+	local _patch_failed=
+	cd "$ksrcdir"
+
+	# first apply patches in specified order
+	for i in $source; do
+		case $i in
+		*.patch)
+			msg "Applying $i..."
+			if ! patch -s -p1 -N -i "$srcdir"/$i; then
+				echo $i >>failed
+				_patch_failed=1
+			fi
+			;;
+		esac
+	done
+
+	if ! [ -z "$_patch_failed" ]; then
+		error "The following patches failed:"
+		cat failed
+		return 1
+	fi
+
+	# gcc6 support
+	cp -v "$srcdir/compiler-gcc6.h" "$ksrcdir/include/linux/"
+
+	mkdir -p "$srcdir"/build
+	cp "$srcdir"/$_config "$srcdir"/build/.config || return 1
+	make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
+		silentoldconfig
+}
+
+
+
+# this is so we can do: 'abuild menuconfig' to reconfigure kernel
+menuconfig() {
+	cd "$srcdir"/build || return 1
+	make ARCH="$_carch" menuconfig
+	cp .config "$startdir"/$_config
+}
+
+build() {
+	cd "$srcdir"/build
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine" \
+		|| return 1
+}
+
+package() {
+	install -Dm644 "$srcdir/build/arch/arm/boot/zImage-dtb" \
+		"$pkgdir/boot/vmlinuz-$_flavor"
+
+	install -D "$srcdir/build/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+}
+
+sha512sums="4b639fcb5baf60ddc16bca43450d8d7dead6fdfdfab5da13ab2ffc8ae25056610de1aee0abc57737f3d4ac7417685bcefd2303c34b110ce749e1d65abbcf8bee  linux-lg-lenok-f383838578f56e03687c81ac7d6de12eafbd85f4.tar.gz
+2ca943fca8eefeacb0e8677ed3db5c0e27b0a643cb4b54afa0750df1f9accd23a9bd194905cf1cac6a8d1fae3aa480edd24ff737ad7e230de351c30a9400e592  config-lg-lenok.armhf
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
+2ab69ffa7940611fbaeba3f5ccca89e53530ea4603c815b329f137e717c2812e1049e29996d74f963d7d67166d1529589f6272367e77ee1e467e437661be1d12  refresh_rate.patch"

device/linux-lg-lenok/compiler-gcc6.h

+// SOURCE:
+// https://github.com/NextThingCo/CHIP-u-boot/issues/10#issuecomment-287515505
+
+#ifndef __LINUX_COMPILER_H
+#error "Please don't include <linux/compiler-gcc6.h> directly, include <linux/compiler.h> instead."
+#endif
+
+#define __used				__attribute__((__used__))
+#define __must_check			__attribute__((warn_unused_result))
+#define __compiler_offsetof(a, b)	__builtin_offsetof(a, b)
+
+/* Mark functions as cold. gcc will assume any path leading to a call
+   to them will be unlikely.  This means a lot of manual unlikely()s
+   are unnecessary now for any paths leading to the usual suspects
+   like BUG(), printk(), panic() etc. [but let's keep them for now for
+   older compilers]
+
+   Early snapshots of gcc 4.3 don't support this and we can't detect this
+   in the preprocessor, but we can live with this because they're unreleased.
+   Maketime probing would be overkill here.
+
+   gcc also has a __attribute__((__hot__)) to move hot functions into
+   a special section, but I don't see any sense in this right now in
+   the kernel context */
+#define __cold			__attribute__((__cold__))
+
+#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
+
+#ifndef __CHECKER__
+# define __compiletime_warning(message) __attribute__((warning(message)))
+# define __compiletime_error(message) __attribute__((error(message)))
+#endif /* __CHECKER__ */
+
+/*
+ * Mark a position in code as unreachable.  This can be used to
+ * suppress control flow warnings after asm blocks that transfer
+ * control elsewhere.
+ *
+ * Early snapshots of gcc 4.5 don't support this and we can't detect
+ * this in the preprocessor, but we can live with this because they're
+ * unreleased.  Really, we need to have autoconf for the kernel.
+ */
+#define unreachable() __builtin_unreachable()
+
+/* Mark a function definition as prohibited from being cloned. */
+#define __noclone	__attribute__((__noclone__))
+
+/*
+ * Tell the optimizer that something else uses this function or variable.
+ */
+#define __visible __attribute__((externally_visible))
+
+/*
+ * GCC 'asm goto' miscompiles certain code sequences:
+ *
+ *   http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+ *
+ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek.
+ *
+ * (asm goto is automatically volatile - the naming reflects this.)
+ */
+#define asm_volatile_goto(x...)	do { asm goto(x); asm (""); } while (0)
+
+#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP
+#define __HAVE_BUILTIN_BSWAP32__
+#define __HAVE_BUILTIN_BSWAP64__
+#define __HAVE_BUILTIN_BSWAP16__
+#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */
+

device/linux-lg-lenok/refresh_rate.patch

+diff --git a/drivers/video/msm/mdss/mdss_fb.c b/drivers/video/msm/mdss/mdss_fb.c
+index b37fd1e07ac1..1f091a261d22 100644
+--- a/drivers/video/msm/mdss/mdss_fb.c
++++ b/drivers/video/msm/mdss/mdss_fb.c
+@@ -2668,7 +2668,7 @@ static int mdss_fb_register(struct msm_fb_data_type *mfd)
+ 	var->left_margin = panel_info->lcdc.h_back_porch;
+ 	var->right_margin = panel_info->lcdc.h_front_porch;
+ 	var->hsync_len = panel_info->lcdc.h_pulse_width;
+-	var->pixclock = panel_info->clk_rate / 1000;
++	var->pixclock = 1000000 / 60;
+
+ 	/*
+ 	 * Store the cont splash state in the var reserved[3] field.