Implement charging mode (#1285)

* Add charging-sdl package
* Include charging-sdl into the initramfs-extra
* [initramfs] Detect charging mode and use triggerhappy to start
charging-sdl when the power key is pressed

aports/main/charging-sdl/APKBUILD

@@ -0,0 +1,24 @@
+pkgname=charging-sdl
+pkgver=0.1
+pkgrel=0
+pkgdesc="SDL2 charging application for the initramfs"
+url="https://github.com/postmarketOS/charging-sdl"
+arch="all"
+license="GPL3"
+depends="sdl2 sdl2_ttf mesa-gl directfb"
+makedepends="linux-headers sdl2-dev sdl2_ttf-dev"
+subpackages=""
+source="${pkgname}-${pkgver}.tar.gz::https://github.com/postmarketOS/charging-sdl/archive/${pkgver}.tar.gz"
+options="!strip"
+builddir="${srcdir}/${pkgname}-${pkgver}"
+
+build() {
+	make
+}
+
+package() {
+	install -D -m755 "${builddir}"/charging_sdl \
+		"$pkgdir"/usr/bin/charging-sdl
+}
+
+sha512sums="61cb132da5780f230280eb9cd24971cc2ea038890b098ccd04f842eb80c2ebfa3a27d619e28d8a37fe64c5a3863fbab68e2842d830f7f4658e52888436647858  charging-sdl-0.1.tar.gz"

aports/main/postmarketos-mkinitfs/APKBUILD

@@ -1,10 +1,11 @@
 pkgname=postmarketos-mkinitfs
-pkgver=0.5.11
+pkgver=0.6.1
 pkgrel=0
 pkgdesc="Tool to generate initramfs images for postmarketOS"
 url="https://github.com/postmarketOS"
 # multipath-tools: kpartx
-depends="busybox-extras lddtree cryptsetup kmod multipath-tools postmarketos-splash device-mapper parted e2fsprogs e2fsprogs-extra osk-sdl"
+depends="busybox-extras lddtree cryptsetup kmod multipath-tools postmarketos-splash
+	device-mapper parted e2fsprogs e2fsprogs-extra osk-sdl charging-sdl triggerhappy"
 triggers="$pkgname.trigger=/etc/postmarketos-mkinitfs/hooks:/usr/share/kernel/*"
 source="init.sh.in init_functions.sh mkinitfs.sh"
 arch="noarch"
@@ -22,6 +23,6 @@ package() {
 		"$pkgdir/sbin/mkinitfs"
 	mkdir -p "$pkgdir/etc/postmarketos-mkinitfs/hooks/"
 }
-sha512sums="500c1e903ca9cf5dfe0102414b086643379d51d848e15eeed89da8ba9f3a286dfba139a29b8312a0df005e159a54ad08c84e078b7d70e6873cabb7d0abda4807  init.sh.in
+sha512sums="a09a48026a5cac308fa54e37c72e89fd7901e749f73720f3e8d3ec11a4d1527dbc1e5011aff53b1beffb6ff444c8df11a56e43d27ac0180ce8ddc79332be1d0d  init.sh.in
-eca1e4647494556be52b3eecffe2db75735006a6c53e8778630949808aabc464281ffa75a8744e22a5512c2de1eb5f92f9eb377a55ca4a7402ba8cc0705df83d  init_functions.sh
+f45548b295393cb078e4c456acef0eaac11705c4b5bc33981c320580c843231589fdfc78b25e182cd202435381d1be37085df01b6e272eee0af2ca0f89b3b4f5  init_functions.sh
-c9b6dd04413509185f74b3d97bc01c97f8b9392e2f0dbccbd9c968efb7d375236b30337bd1637c467816c44d1c40feb354fe7206ac99faed0e1b207a30758cd0  mkinitfs.sh"
+5075df824ae86cc73590513a2212411a5aa2a840268c3850ea22e541717ce254e15b812f98c22e708fb0a21d87b8c6eb0059cf667ca3350412e39dad2d81879e  mkinitfs.sh"

aports/main/postmarketos-mkinitfs/init.sh.in

@@ -37,6 +37,7 @@ start_udhcpd
 
 mount_boot_partition
 extract_initramfs_extra @INITRAMFS_EXTRA@
+start_charging_mode
 wait_root_partition
 resize_root_partition
 unlock_root_partition

aports/main/postmarketos-mkinitfs/init_functions.sh

@@ -267,8 +267,8 @@ start_udhcpd() {
 	udhcpd
 }
 
-start_onscreen_keyboard(){
+setup_directfb_tslib(){
-	# Set up directfb and tslib for osk-sdl
+	# Set up directfb and tslib
 	# Note: linux_input module is disabled since it will try to take over
 	# the touchscreen device from tslib (e.g. on the N900)
 	export DFBARGS="system=fbdev,no-cursor,disable-module=linux_input"
@@ -276,11 +276,37 @@ start_onscreen_keyboard(){
 	if [ ! -z "$deviceinfo_dev_touchscreen" ]; then
 		export TSLIB_TSDEVICE="$deviceinfo_dev_touchscreen"
 	fi
+}
+
+start_onscreen_keyboard(){
+	setup_directfb_tslib
 	osk-sdl -n root -d "$partition" -c /etc/osk.conf -v > /osk-sdl.log 2>&1
 	unset DFBARGS
 	unset TSLIB_TSDEVICE
 }
 
+start_charging_mode(){
+	# Check cmdline for charging mode
+	chargingmodes="
+		androidboot.mode=charger
+		lpm_boot=1
+		androidboot.huawei_type=oem_rtc
+		startup=0x00010004
+	"
+	# shellcheck disable=SC2086
+	grep -Eq "$(echo $chargingmodes | tr ' ' '|')" /proc/cmdline || return
+	setup_directfb_tslib
+	# Get the font from osk-sdl config
+	fontpath=$(awk '/^keyboard-font/{print $3}' /etc/osk.conf)
+	# Set up triggerhappy config
+	{
+		echo "KEY_POWER 1 pgrep -x charging-sdl || charging-sdl -pcf $fontpath"
+	} >/etc/triggerhappy.conf
+	# Start it once and then start triggerhappy
+	charging-sdl -pcf "$fontpath" &
+	thd --deviceglob /dev/input/event* --triggers /etc/triggerhappy.conf
+}
+
 # $1: path to ppm.gz file
 show_splash() {
 	gzip -c -d "$1" >/tmp/splash.ppm

aports/main/postmarketos-mkinitfs/mkinitfs.sh

@@ -92,17 +92,19 @@ get_modules()
 # Get the paths to all binaries and their dependencies
 BINARIES="/bin/busybox /bin/busybox-extras /usr/sbin/telnetd /sbin/kpartx"
 BINARIES_EXTRA="
-	/sbin/cryptsetup
-	/sbin/dmsetup
-	/usr/sbin/parted
-	/sbin/e2fsck
-	/usr/sbin/resize2fs
-	/usr/bin/osk-sdl
-	/usr/lib/libGL.so.1
-	/usr/lib/ts/*
-	/usr/lib/libts*
 	$(find /usr/lib/directfb-* -name '*.so')
 	/lib/libz.so.1
+	/sbin/cryptsetup
+	/sbin/dmsetup
+	/sbin/e2fsck
+	/usr/bin/charging-sdl
+	/usr/bin/osk-sdl
+	/usr/lib/libGL.so.1
+	/usr/lib/libts*
+	/usr/lib/ts/*
+	/usr/sbin/parted
+	/usr/sbin/resize2fs
+	/usr/sbin/thd
 "
 get_binaries()
 {