samsung-a3lte: new device (Samsung Galaxy A3 - SM-A300F) (MR 1433)

SM-A300F is pretty much identical to SM-A300FU (note the U),
but it needs different firmware for some reason.

device/testing/device-samsung-a3lte/APKBUILD

+# Reference: <https://postmarketos.org/devicepkg>
+# Maintainer: Nikita Travkin <nikitos.tr@gmail.com>
+# Maintainer: Minecrell <minecrell@minecrell.net>
+pkgname=device-samsung-a3lte
+pkgdesc="Samsung Galaxy A3 (SM-A300F)"
+pkgver=1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="aarch64"
+options="!check !archcheck"
+depends="postmarketos-base mkbootimg soc-qcom-msm8916"
+makedepends="devicepkg-dev"
+source="deviceinfo modprobe.conf rootston.ini"
+subpackages="
+	$pkgname-kernel-mainline:kernel_mainline
+	$pkgname-kernel-mainline-modem:kernel_mainline_modem
+	$pkgname-nonfree-firmware:nonfree_firmware
+	$pkgname-nonfree-firmware-modem:nonfree_firmware_modem
+	$pkgname-phosh
+"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+kernel_mainline() {
+	pkgdesc="Close to mainline kernel (no modem, audio routed directly)"
+	depends="linux-postmarketos-qcom-msm8916"
+	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
+}
+
+kernel_mainline_modem() {
+	pkgdesc="Close to mainline kernel (non-free modem, audio routed through ADSP)"
+	depends="linux-postmarketos-qcom-msm8916 soc-qcom-msm8916-modem"
+	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
+}
+
+nonfree_firmware() {
+	pkgdesc="GPU/WiFi/BT/Video(/Modem) firmware"
+	depends="linux-firmware-qcom firmware-samsung-a3lte-venus firmware-samsung-a3lte-wcnss"
+	mkdir "$subpkgdir"
+}
+
+nonfree_firmware_modem() {
+	pkgdesc="Modem firmware"
+	depends="firmware-samsung-a3lte-modem"
+	install_if="$pkgname-nonfree-firmware $pkgname-kernel-mainline-modem"
+	mkdir "$subpkgdir"
+}
+
+phosh() {
+	install_if="$pkgname postmarketos-ui-phosh"
+	install -Dm644 "$srcdir"/rootston.ini \
+		"$subpkgdir"/etc/phosh/rootston.ini
+}
+
+sha512sums="6f6b53fce933f25793aeca747411b32c31244fd149e971d640b3330913d9d443532b2b4c1138f58f13a46dda2d3854503256a0212cddac28b1f17df9c6d7c519  deviceinfo
+ee4263607eee2d12bd796d19606de35005f0a1ae4b8ff86e4556f2233c533b62d651dabe558081b5ff768a6b8158f34dd9b74b3dcece159e55d635b1d807928b  modprobe.conf
+f3667b914bb955be9e97db31dc7ed4a7c5d0c369be9549d587bb7208e270590c0c3fa36a0dd997d6f8305c5c9afb3b906423af6ca8724e806f995e61226cfc83  rootston.ini"

device/testing/device-samsung-a3lte/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="Samsung Galaxy A3 (SM-A300F)"
+deviceinfo_manufacturer="Samsung"
+deviceinfo_codename="samsung-a3lte"
+deviceinfo_year="2014"
+
+# Eventually this should be replaced with a special DTB for a3lte.
+# However, the differences are minimal, so for now a3u-eur works fine.
+deviceinfo_dtb_mainline="qcom/msm8916-samsung-a3u-eur"
+deviceinfo_dtb_mainline_modem="qcom/msm8916-samsung-a3u-eur-modem"
+deviceinfo_append_dtb="true"
+deviceinfo_modules_initfs=""
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_chassis="handset"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="540"
+deviceinfo_screen_height="960"
+deviceinfo_getty="ttyMSM0;115200"
+
+# MSM DRM cannot take over the framebuffer from the bootloader at the moment
+deviceinfo_no_framebuffer="true"
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="earlycon console=ttyMSM0,115200 PMOS_NO_OUTPUT_REDIRECT"
+deviceinfo_generate_bootimg="true"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00080000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x01e00000"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_sparse="true"

device/testing/device-samsung-a3lte/modprobe.conf

+#
+# There is a weird probe issue if both MSM DRM and the panel driver are built
+# as modules: When MSM DRM is loaded it registers the DSI bus for the panel.
+# At this point the panel is not loaded yet, so the kernel sends an uevent
+# to userspace to load the necessary panel module.
+#
+# This causes some delay until the panel module is loaded, so MSM DRM fails to
+# probe temporarily and returns -EPROBE_DEFER (to request probing again later).
+# Unfortunately this will also unregister the DSI bus for the panel, and the
+# kernel will not try probing MSM DRM + panel again until some other (slow)
+# driver loads after MSM DRM.
+#
+# Usually WCNSS (WiFi/BT) fits that criteria, allowing the display to work.
+# But this does not work if the user decides to exclude proprietary firmware.
+#
+# To avoid this problem we add an explicit soft dependency for MSM DRM
+# on the panel module, so modprobe loads the panel module first and MSM DRM
+# will immediately find the panel it is looking for.
+#
+softdep msm pre: panel-samsung-s6e88a0-ams452ef01

device/testing/device-samsung-a3lte/rootston.ini

+[cursor:seat0]
+map-to-output:DSI-1
+
+[output:DSI-1]
+scale = 1

device/testing/firmware-samsung-a3lte/APKBUILD

+pkgname=firmware-samsung-a3lte
+pkgver=1
+pkgrel=0
+pkgdesc="Firmware for Samsung Galaxy A3 (SM-A300F)"
+url="https://rizzotherat.gitlab.io/firmware/"
+subpackages="$pkgname-modem $pkgname-venus $pkgname-wcnss"
+arch="aarch64"
+license="proprietary"
+options="!check !strip !archcheck"
+source="https://pepethekingprawn.gitlab.io/firmware/SM-A300F.tar.xz"
+
+_fwdir="/lib/firmware/postmarketos"
+
+package() {
+	# parent package is empty
+	mkdir -p "$pkgdir"
+}
+
+modem() {
+	pkgdesc="Samsung Galaxy A3 (SM-A300F) modem firmware"
+	install -Dm644 "$srcdir"/mba.mbn -t "$subpkgdir/$_fwdir"
+	install -Dm644 "$srcdir"/modem.* -t "$subpkgdir/$_fwdir"
+}
+
+venus() {
+	pkgdesc="Samsung Galaxy A3 (SM-A300F) video firmware"
+	install -Dm644 "$srcdir"/venus.* -t "$subpkgdir/$_fwdir"/qcom/venus-1.8
+}
+
+wcnss() {
+	pkgdesc="Samsung Galaxy A3 (SM-A300F) WiFi/BT firmware"
+	cd "$srcdir"
+	install -Dm644 wcnss.* -t "$subpkgdir/$_fwdir"
+	install -Dm644 WCNSS_* -t "$subpkgdir/$_fwdir"/wlan/prima
+}
+
+sha512sums="7aeeeca56f629589a02434f6e24ac141139d1080fae369864450917fb3ad2bc8a64803201e9771ff932bf79a379207772b975fc4c184561338e87213093380df  SM-A300F.tar.xz"