Add Xperia Z2 Tablet WiFi (#339)

* Add Xperia Z2 Tablet WiFi config

* Various fixes for Z2 tablet

* Fix Checksums

device/device-sony-castor-windy/90-android.rules

@@ -0,0 +1,8 @@
+# udev rules file
+# All device names can be read from weston's logfile (/tmp/weston.log in postmarketOS)
+
+# Touchscreen (use 'weston-calibrator' to calibrate)
+SUBSYSTEM=="input", ATTRS{name}=="clearpad", \
+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-sony-castor-windy/APKBUILD

@@ -0,0 +1,26 @@
+pkgname=device-sony-castor-windy
+pkgver=1
+pkgrel=4
+pkgdesc="Sony Xperia Z2 Tablet WIFI"
+url="https://github.com/postmarketOS"
+arch="noarch"
+license="MIT"
+depends="mkbootimg linux-sony-castor-windy"
+makedepends=""
+install=""
+subpackages=""
+source="deviceinfo 90-android.rules"
+options="!check"
+
+build() {
+	return 0
+}
+
+package() {
+	install -D -m644 "$srcdir/deviceinfo" \
+		"$pkgdir/etc/deviceinfo"
+	
+}
+
+sha512sums="2814b5a1522f01b82d867d1506992e14892435f1ceba084c05dfedf93f0e1c3f50aa8b754975b30acf642c2c476daccf61d1e1b02aa481dbf033b4f2e61d4607  deviceinfo
+d309bc3ef26a30ea24be87bd3120eef9cd9fe1d09812ce35f1a9e8d291d5c5ca5651b7fa5a61fb155d8fb98b7df7104ab35c087b96b66ba0b0a54d7e7c5985ff  90-android.rules"

device/device-sony-castor-windy/deviceinfo

@@ -0,0 +1,24 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Xperia Z2 Tablet WIFI"
+deviceinfo_manufacturer="Sony"
+deviceinfo_date=""
+deviceinfo_keyboard="false"
+deviceinfo_nonfree="????"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_external_disk="true"
+deviceinfo_external_disk_install="true"
+deviceinfo_flash_methods="fastboot"
+deviceinfo_arch="armhf"
+
+# Fastboot related
+deviceinfo_generate_bootimg="true"
+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_cmdline="clk_ignore_unused console=ttyMSM0,115200,n8"

device/linux-sony-castor-windy/APKBUILD

@@ -0,0 +1,111 @@
+# APKBUILD based on linux-vanilla aport. Changes:
+# - disabled module installation
+# - add !check !tracedeps
+# - package: just install zImage-dtb 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)
+#
+# Kernel config changes, based on: arch/arm/configs/aosp_rhine_amami_defconfig
+# - enable devtmpfs (needed for udev -> touch support in weston)
+# - change compression from CONFIG_KERNEL_LZMA=y to
+#	CONFIG_KERNEL_GZIP=y (so it works with busybox)
+# - disable proprietary graphics driver
+
+_vendor=sony
+_flavor=sony-castor-windy
+_branch=wifi-fixes
+_config="config-${_flavor}.armhf"
+
+pkgname=linux-${_flavor}
+pkgver=4.3
+case $pkgver in
+	*.*.*)  _kernver=${pkgver%.*};;
+	*.*) _kernver=$pkgver;;
+esac
+pkgrel=1
+arch="armhf"
+pkgdesc="Sony Xperia Z2 Tablet kernel"
+url="https://github.com/opendata26"
+depends="postmarketos-mkinitfs"
+makedepends="perl sed installkernel  bash gmp-dev bc linux-headers elfutils-dev"
+options="!strip !check !tracedeps"
+install=
+source="
+	$pkgname-$_branch.tar.gz::https://github.com/opendata26/kernel/archive/${_branch}.tar.gz
+	$_config
+	compiler-gcc6.h
+"
+subpackages=""
+license="GPL2"
+
+_abi_release=${pkgver}
+_carch="arm"
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+ksrcdir="$srcdir/kernel-${_branch}"
+
+prepare() {
+	local _patch_failed=
+	cd "$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/" || return 1
+
+	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() {
+    cat "$srcdir/build/arch/arm/boot/zImage" \
+	"$srcdir/build/arch/arm/boot/dts/qcom-msm8974-sony-xperia-castor.dtb" > \
+	"$srcdir/build/arch/arm/boot/zImage-dtb"
+
+	install -Dm644 "$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="d27a8850e6412c2edb2752433600c9b46e3a83a319b3d175dfeaff447ddc2213c4bbfcdb3688eed76743dc89ac1679a40ec95e8b334f30b4e463ae42facdfcc5  linux-sony-castor-windy-wifi-fixes.tar.gz
+6505f6371153bc741d48bd9f9e15001c8ccd7feb96ce6bb3a6ab7cb3b2012e7b61439edbbac5b1377e11b3af1cb4e2b3878b54b4fdc00729f0a6b2272f64591f  config-sony-castor-windy.armhf
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h"

device/linux-sony-castor-windy/compiler-gcc6.h

@@ -0,0 +1,69 @@
+// 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 */
+