Initial support for Motorola Moto G4 Play (motorola-harpia) (#1437)

Currently, Weston boots with a working touch interface, and USB networking.

device/device-motorola-harpia/APKBUILD

@@ -0,0 +1,29 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-motorola-harpia"
+pkgdesc="Motorola Moto G4 Play"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="noarch"
+options="!check"
+depends="postmarketos-base linux-motorola-harpia mkbootimg mesa-dri-swrast msm-fb-refresher"
+makedepends="devicepkg-dev"
+source="
+    deviceinfo
+    initfs-hook.sh
+"
+
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+        install -D -m644 "$srcdir"/initfs-hook.sh \
+            "$pkgdir"/etc/postmarketos-mkinitfs/hooks/00-${pkgname}.sh
+}
+
+sha512sums="6c1485882a4712e5d03fafc9a0ce4840f019a604c7c4ed4e6da765487f352a4f8163ca8f880e7f7f40bfe4b229af5c8d9c4b9b605c8b4255a18631cbdfd71671  deviceinfo
+17dabb0190a9191173454ac12c5c8ad8744b922d20807bd9465bc26d485c0f2d34e968d40b8e886a32640f0c36635cde083c4dc7e4122b55c3cff1f9d1b34af6  initfs-hook.sh"

device/device-motorola-harpia/deviceinfo

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+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Motorola Moto G4 Play"
+deviceinfo_manufacturer="Motorola"
+deviceinfo_date=""
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="armhf"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="720"
+deviceinfo_screen_height="1280"
+deviceinfo_dev_touchscreen="/dev/input/event1"
+deviceinfo_dev_touchscreen_calibration="1 0 0 0 1 0"
+deviceinfo_dev_keyboard=""
+deviceinfo_msm_refresher="true"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="console=ttyHSL0,115200,n8 androidboot.console=ttyHSL0 androidboot.hardware=qcom msm_rtb.filter=0x3F ehci-hcd.park=3 vmalloc=400M androidboot.bootdevice=7824900.sdhci utags.blkdev=/dev/block/bootdevice/by-name/utags utags.backup=/dev/block/bootdevice/by-name/utagsBackup movablecore=160M buildvariant=userdebug"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="true"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+

device/device-motorola-harpia/initfs-hook.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+# Blank and set brightness (fixes blank screen after boot splash)
+echo 0 > /sys/class/graphics/fb0/blank
+echo 255 > /sys/devices/soc.0/1a00000.qcom,mdss_mdp/qcom,mdss_fb_primary.126/leds/lcd-backlight/brightness

device/linux-motorola-harpia/APKBUILD

@@ -0,0 +1,89 @@
+# Kernel config based on: arch/arm/configs/harpia_defconfig
+
+pkgname="linux-motorola-harpia"
+pkgver=3.10.49
+pkgrel=0
+pkgdesc="Motorola Moto G4 Play kernel fork"
+arch="armhf"
+_carch="arm"
+_flavor="motorola-harpia"
+url="https://kernel.org"
+license="GPL2"
+options="!strip !check !tracedeps"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev dtbtool xz"
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+# Source
+_repository="android_kernel_motorola_msm8916"
+_commit="4c864820053bb70e21cf1e9764baefefd4d2f6b1"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	compiler-gcc6.h
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+
+	# gcc6 support
+	cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"
+
+	# Remove -Werror from all makefiles
+	local i
+	local makefiles="$(find . -type f -name Makefile)
+		$(find . -type f -name Kbuild)"
+	for i in $makefiles; do
+		sed -i 's/-Werror-/-W/g' "$i"
+		sed -i 's/-Werror//g' "$i"
+	done
+
+	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
+	cp "$srcdir"/$_config "$builddir"/.config
+	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
+}
+
+menuconfig() {
+	cd "$builddir"
+	make ARCH="$_carch" menuconfig
+	cp .config "$startdir"/$_config
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+
+	# Generate master DTB (deviceinfo_bootimg_qcdt)
+	dtbTool -s 2048 -p "scripts/dtc/" -o "arch/arm/boot/dt.img" "arch/arm/boot/"
+}
+
+package() {
+	# kernel.release
+	install -D "$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/arm/boot/dt.img" \
+		"$pkgdir/boot/dt.img"
+}
+
+sha512sums="28e70a5af0df65b85c257c4ca455553d38b17dad8d141876854c5a38502114638c8e59440cffcf81c278a6836e39ec0f63ed35dad825c49a8c3f299de7617b80  linux-motorola-harpia-4c864820053bb70e21cf1e9764baefefd4d2f6b1.tar.gz
+b6f45b8f832b8be31a0ca8c5c80373532fb7ad08f2343eefb8e9385f863d3e9cc83d74ec03c5b64dbce073a4fb15d6b2df010ea6e1a7d76f35ffe8bfb7f16d8c  config-motorola-harpia.armhf
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h"

device/linux-motorola-harpia/compiler-gcc6.h

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+// 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 */
+