New device: samsung-i9003 (#729)

device/device-samsung-i9003/90-android-touch-dev.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}=="sec_touchscreen", \
+ENV{ID_INPUT}="1", ENV{ID_INPUT_TOUCHSCREEN}="1" \
+#ENV{WL_CALIBRATION}="0.954174 0.016888 -2.626083 -0.006031 1.011271 14.175903"
+

device/device-samsung-i9003/APKBUILD

@@ -0,0 +1,28 @@
+pkgname=device-samsung-i9003
+pkgver=1
+pkgrel=13
+pkgdesc="Samsung Galaxy SI SLC"
+url="https://github.com/postmarketOS"
+arch="noarch"
+license="MIT"
+depends="linux-samsung-i9003 libsamsung-ipc mkbootimg"
+makedepends=""
+install="$pkgname.post-install"
+subpackages=""
+source="
+	deviceinfo
+	90-android-touch-dev.rules
+	$install
+"
+options="!check"
+
+package() {
+	install -D -m644 "$srcdir/deviceinfo" \
+		"$pkgdir/etc/deviceinfo"
+	install -D -m644 "$srcdir"/90-android-touch-dev.rules \
+		"$pkgdir"/etc/udev/rules.d/90-android-touch-dev.rules
+}
+
+sha512sums="95ab784d79cf31324b50d83c5b41feadd89c7315b237f18194da1e40af55683340237fa286a5edb30c8855e2f6f5e04fca93782ccdec3c056a56acfc61396453  deviceinfo
+079336f0a62fe45e839dcaa56479736fb67125ef5adf9bf73fc513c696d5a9fe14cfc9912f4aeb989476aa23bcd1befca25f0163c827691eea7eec1c7b97f303  90-android-touch-dev.rules
+543f39af1ae7a2382ed869cbd1ee1ac598a88eb4e213cd64487c54b5c37722c6207ee6db4fa7e2ed53064259a44115c6da7bbc8c068378bb52a25e7088eeebd6  device-samsung-i9003.post-install"

device/device-samsung-i9003/device-samsung-i9003.post-install

@@ -0,0 +1 @@
+#!/bin/sh

device/device-samsung-i9003/deviceinfo

@@ -0,0 +1,37 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Galaxy SI SLC"
+deviceinfo_manufacturer="Samsung"
+deviceinfo_date=""
+deviceinfo_nonfree="????"
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_external_disk="true"
+deviceinfo_external_disk_install="true"
+deviceinfo_flash_methods="heimdall-bootimg"
+deviceinfo_arch="armhf"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_screen_width="480"
+deviceinfo_screen_height="800"
+deviceinfo_dev_touchscreen="/dev/input/event2"
+
+# Offsets for the boot.img
+deviceinfo_generate_bootimg="true"
+deviceinfo_kernel_cmdline="console=ttySAC2,115200 buildvariant=userdebug"
+deviceinfo_flash_offset_kernel=0x00008000
+deviceinfo_flash_offset_ramdisk=0x1000000
+deviceinfo_flash_offset_second=0x00f00000
+deviceinfo_flash_offset_tags=0x00000100
+deviceinfo_flash_pagesize=4096
+
+# Heimdall related
+deviceinfo_flash_heimdall_partition_kernel="NORMALBOOT"
+deviceinfo_flash_heimdall_partition_initfs="RECOVERY"
+deviceinfo_flash_heimdall_partition_system="SYSTEM"
+
+deviceinfo_weston_core_modules="xwayland.so"
+

device/linux-samsung-i9003/00_return_address.patch

@@ -0,0 +1,29 @@
+diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
+index f89515a..2bb8cac 100644
+--- a/arch/arm/include/asm/ftrace.h
++++ b/arch/arm/include/asm/ftrace.h
+@@ -45,7 +45,7 @@ void *return_address(unsigned int);
+ 
+ #else
+ 
+-extern inline void *return_address(unsigned int level)
++static inline void *return_address(unsigned int level)
+ {
+ 	return NULL;
+ }
+diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c
+index 0b13a72..8bf0a5a 100644
+--- a/arch/arm/kernel/return_address.c
++++ b/arch/arm/kernel/return_address.c
+@@ -62,11 +62,6 @@ void *return_address(unsigned int level)
+ #warning "TODO: return_address should use unwind tables"
+ #endif
+ 
+-void *return_address(unsigned int level)
+-{
+-	return NULL;
+-}
+-
+ #endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */
+ 
+ EXPORT_SYMBOL_GPL(return_address);

device/linux-samsung-i9003/01_twl_power_init.patch

@@ -0,0 +1,12 @@
+diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
+index d56945e..53033bd 100644
+--- a/include/linux/i2c/twl.h
++++ b/include/linux/i2c/twl.h
+@@ -743,7 +743,6 @@ static inline int twl4030_remove_script(u8 flags) { return -EINVAL; }
+ #ifdef CONFIG_TWL6030_POWER
+ extern void twl6030_power_init(struct twl4030_power_data *power_data);
+ #else
+-extern inline void twl6030_power_init(struct twl4030_power_data *power_data) { }
+ #endif
+ 
+ struct twl4030_codec_audio_data {

device/linux-samsung-i9003/02_mfd_driver_fix.patch

@@ -0,0 +1,13 @@
+diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c
+index 7df976d..1937e6c 100644
+--- a/drivers/mfd/twl-core.c
++++ b/drivers/mfd/twl-core.c
+@@ -1352,8 +1352,6 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id)
+ 			twl4030_power_sr_init();
+ 			twl4030_power_init(pdata->power);
+ 		}
+-		if (twl_class_is_6030())
+-			twl6030_power_init(pdata->power);
+ 	}
+ 
+ 	/* Maybe init the T2 Interrupt subsystem */

device/linux-samsung-i9003/APKBUILD

@@ -0,0 +1,136 @@
+# Based on linux-lg-mako. Changes:
+# - add findutils makedepend (necessary for the initramfs)
+# - it builds an initramfs - do not use ramdisk.cpio and
+#	ramdisk-recovery-device.cpio, in there, always use the
+#	initramfs from the recovery partition ("isorec")
+# - directly boot to that initramfs, not only when the recovery
+#	key combination was pressed.
+# - use Alpine's busybox-static instead of the pre-compiled
+#	binary, that comes with the source
+#
+# Kernel config changes, based on: arch/arm/configs/latona_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)
+
+_vendor=samsung
+_flavor=samsung-i9003
+_hash="7b8d73dd32e6cd21107f9a963a32a5ed237a6e78"
+_config="config-${_flavor}.armhf"
+
+pkgname=linux-${_flavor}
+pkgver=3.0.101
+case $pkgver in
+	*.*.*)  _kernver=${pkgver%.*};;
+	*.*) _kernver=$pkgver;;
+esac
+pkgrel=9
+arch="armhf"
+pkgdesc="Samsung Galaxy SI SLC kernel"
+url="https://github.com/dhiru1602/android_kernel_samsung_latona"
+depends="postmarketos-mkinitfs"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev
+findutils busybox-static-armhf"
+options="!strip !check !tracedeps"
+install=
+source="
+	$pkgname-$_hash.tar.gz::https://github.com/dhiru1602/android_kernel_samsung_latona/archive/${_hash}.tar.gz
+	$_config
+	compiler-gcc6.h
+	00_return_address.patch
+	01_twl_power_init.patch
+	02_mfd_driver_fix.patch
+	init
+"
+subpackages=""
+license="GPL2"
+
+_abi_release=${pkgver}
+_carch="arm"
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+ksrcdir="$srcdir/android_kernel_samsung_latona-${_hash}"
+
+prepare() {
+	local _patch_failed=
+	cd "$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
+	make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
+		silentoldconfig
+
+
+	mkdir "$ksrcdir"/usr/latona_initramfs_files/
+
+	# Use Alpine's busybox.static instead of the pre-compiled busybox shipped
+	# with the source
+	cp -v /usr/$(arch_to_hostspec $arch)/bin/busybox.static \
+		"$ksrcdir"/usr/latona_initramfs_files/busybox
+
+	# use custom init script in the initramfs which loads the initramfs from
+	# the kernel2 partition ("isorec")
+	cp -v "$srcdir"/init "$ksrcdir"/usr/latona_initramfs_files/init
+
+	mkdir -p "$srcdir"/build
+	cp "$srcdir"/$_config "$srcdir"/build/.config
+	make -C "$ksrcdir" O="$srcdir"/build ARCH="$_carch" HOSTCC="$HOSTCC" \
+		silentoldconfig
+}
+
+
+
+# this is so we can do: 'abuild menuconfig' to reconfigure kernel
+menuconfig() {
+	cd "$srcdir"/build
+	make ARCH="$_carch" menuconfig
+	#ARCH="$_carch" "$ksrcdir"/scripts/kconfig/merge_config.sh "$ksrcdir"/arch/arm/config/latona_defconfig "$ksrcdir"/android/configs/android-base.cfg "$ksrcdir"/android/configs/android-recommended.cfg
+	cp .config "$startdir"/$_config
+}
+
+build() {
+	cd "$srcdir"/build
+	unset LDFLAGS
+
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-Alpine"
+}
+
+package() {
+	install -Dm644 "$srcdir/build/arch/arm/boot/zImage" \
+		"$pkgdir/boot/vmlinuz-$_flavor"
+
+	install -D "$srcdir/build/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+}
+
+sha512sums="b7ca46b856a0c160ae36a98da39147deb85c054e902447ab68bcd4a011986eee486fb681d0bb832b9b57797aca35332483e99379b792bd467b1f030328bd83c7  linux-samsung-i9003-7b8d73dd32e6cd21107f9a963a32a5ed237a6e78.tar.gz
+ac6d9fd10aca7a9460d26bd78d70a6aacfdc9ca28ec10a04210211f748724dbb0018c6388d407327c8736f896c956b0d8ba4b3c72f05e65cd664a8261381a9a9  config-samsung-i9003.armhf
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
+c40eaa11547f5bc2b1ff965506bdfe3015ff16e4b5ad9ccb3b8134ceafd1d32407c4ef2b213e02e036ce1e9bdcbfe768dff7d4b054bec77705a176c1f783b6f5  00_return_address.patch
+1972a2b5c429d6bf5fa1423e8805bb89bbd80c4efe6d235cb2037de6ba4d15c01e90239392161d6e5a0802eafaab6e8b468a49a12dc5b66469a111262cde2047  01_twl_power_init.patch
+5b951a2ab60a89fbc3ca209960987035001a6f9147f8ab5c05a6b49ec6dee75d0b6d053bef28df37e583bfc903599beed16692e25ee363e6200e14839d0dda65  02_mfd_driver_fix.patch
+dd4094d5f4ec281d32f12af88cb22a782e497c8e52f69cf60b73ac7d6171fc95f1f8040b3d0ad2ff3f016d22ac1d91c5b522e5d03203534a76742bc55a082af5  init"

device/linux-samsung-i9003/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 */
+

device/linux-samsung-i9003/init

@@ -0,0 +1,29 @@
+#!/stage1/busybox sh
+
+# Samsung kernels come with their own initramfs, which extract and load another
+# initramfs. Usually that depends on the recovery key combination being pressed
+# or not. For simplicity, we always boot the recovery image (from the recovery
+# partition) here.
+
+_PATH="$PATH"
+export PATH=/stage1
+
+busybox cd /
+busybox date >>boot.txt
+exec >>boot.txt 2>&1
+busybox rm init
+busybox mount -t proc proc /proc
+busybox mount -t sysfs sysfs /sys
+
+# always use the "isorec"-style lzop compressed initramfs
+# from the recovery partition
+load_image=/stage1/isorec.cpio
+busybox lzop -dc /dev/block/mmcblk0p6 > ${load_image}
+busybox cpio -i < ${load_image}
+
+busybox umount /sys
+busybox umount /proc
+busybox date >>boot.txt
+busybox rm -fr /stage1 /dev/*
+export PATH="${_PATH}"
+exec /init