samsung-zeroltexx: new device Samsung Galaxy S6 edge (G925F) (MR 2105)

Port based on an unofficial LineageOS port
from https://www.los-legacy.de/17.1/zerofltexx, using kernel from
https://github.com/Exynos7420/android_kernel_samsung_exynos7420/

What works:
- Kernel boots
- Display and touch input (tested with Weston)
- USB networking
- Wifi

For now only including Wifi drivers, as I wasn't yet able to
successfully test audio and camera subsystems (but I intentionally left
these firmware files commented out in the APKBUILD file).

[ci:skip-build]: already built successfully in CI

device/testing/device-samsung-zeroltexx/APKBUILD

@@ -0,0 +1,40 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-samsung-zeroltexx
+pkgdesc="Samsung Galaxy S6 edge"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="aarch64"
+options="!check !archcheck"
+depends="postmarketos-base linux-samsung-zeroltexx mkbootimg mesa-dri-gallium msm-fb-refresher"
+makedepends="devicepkg-dev"
+source="deviceinfo
+	udev/60-persistent-v4l.rules
+	"
+
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+
+install="$pkgname.post-install"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+
+	install -Dm644 "$srcdir"/60-persistent-v4l.rules \
+		"$pkgdir"/etc/udev/rules.d/60-persistent-v4l.rules
+
+}
+
+nonfree_firmware() {
+	pkgdesc="Non-free firmware for the Samsung Galaxy S6 edge"
+	depends="firmware-samsung-zero"
+	mkdir "$subpkgdir"
+}
+
+
+sha512sums="0dc3899d396587d90d03b31932c14debe67b7fe1b10be0308720f6382748ecaaf5338fccae4c239fb3aa877f835e769b65a15d641fcdd77258f3a80410072dd8  deviceinfo
+b8bf2e3ec166af6acbbfaaa2b57b053473c0b12df007090eecf7a885aee2e3cd5d982819e2ee73e2817e5266b9875dc9240389bca409d5523f3cfa8037fa7870  60-persistent-v4l.rules"

device/testing/device-samsung-zeroltexx/device-samsung-zeroltexx.post-install

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+# enable deferred-initcalls script by default (from postmarketos-base package)
+rc-update add deferred-initcalls default
+

device/testing/device-samsung-zeroltexx/deviceinfo

@@ -0,0 +1,32 @@
+# 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 S6 edge"
+deviceinfo_manufacturer="Samsung"
+deviceinfo_codename="samsung-zeroltexx"
+deviceinfo_year="2015"
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_chassis="handset"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="false"
+deviceinfo_screen_width="1440"
+deviceinfo_screen_height="2560"
+
+# Bootloader related
+deviceinfo_flash_method="heimdall-bootimg"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="true"
+deviceinfo_bootimg_mtk_mkimage="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_flash_offset_base="0x10000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_heimdall_partition_kernel="BOOT"
+deviceinfo_flash_heimdall_partition_system="SYSTEM"

device/testing/device-samsung-zeroltexx/udev/60-persistent-v4l.rules

@@ -0,0 +1,4 @@
+# This file is intentionally empty, to disable the default rule with the same name.
+# You can find the default rule in /lib/udev/rules.d/60-persistent-v4l.rules.
+#
+# See https://gitlab.com/postmarketOS/pmaports/-/merge_requests/1160 for why this is needed.

device/testing/firmware-samsung-zero/APKBUILD

@@ -0,0 +1,32 @@
+pkgname=firmware-samsung-zero
+pkgver=1
+pkgrel=0
+pkgdesc="Firmware for the Samsung Galaxy S6 / S6 edge (zerofltexx/zeroltexx)"
+url="https://github.com/Exynos7420/proprietary_vendor_samsung_zero-common"
+arch="noarch"
+license="proprietary"
+options="!check !archcheck !strip !spdx"
+
+# Source
+_commit="9ff5ecfd76e05e7b8fd2210675af51f3acf2eb95"
+
+_vendor_files_wifi="
+bcmdhd_sta.bin
+nvram_net.txt
+"
+
+for _file in $_vendor_files_wifi; do
+	source="$source $pkgname-$_commit-$_file::$url/raw/nx-10.0/proprietary/system/vendor/etc/wifi/$_file"
+done
+
+
+package() {
+	local file
+	for file in $_vendor_files_wifi; do
+		install -Dm644 "$srcdir/$pkgname-$_commit-$file" \
+		    "$pkgdir/lib/firmware/postmarketos/$file"
+	done
+}
+
+sha512sums="3b7f4bcc544762bb632cb4f47c73550f78d7d06e82503eae761a063b2f8871f177f03f9ee54b79297a798fd9c41868d99b985b38de23396a470dbf4e76bfb266  firmware-samsung-zero-9ff5ecfd76e05e7b8fd2210675af51f3acf2eb95-bcmdhd_sta.bin
+8db9cb1c2ff6e659b8a3689758ae564785b840062864a71286176cf9f51a0e0a85bf081a9c3dfdcd1990bfb3dbf824a51c857ed459ff3fcbeb1e756cdd6add46  firmware-samsung-zero-9ff5ecfd76e05e7b8fd2210675af51f3acf2eb95-nvram_net.txt"

device/testing/linux-samsung-zeroltexx/0007-usb_gadget-set-random-rndis-host-MAC-address-to-prev.patch

@@ -0,0 +1,40 @@
+From 2e32a401ea5df22ab899f4da3e5e1b448b2df51a Mon Sep 17 00:00:00 2001
+From: Alexey Min <alexey.min@gmail.com>
+Date: Thu, 7 Mar 2019 17:25:48 +0300
+Subject: [PATCH 5/6] usb_gadget: set random rndis host MAC address to prevent
+ zero address
+
+This fixes zero host MAC:
+
+rndis0: MAC f6:45:91:9b:4e:43
+rndis0: HOST MAC 00:00:00:00:00:00
+
+and allows devive to automatically obtain IP addrest on PC host side
+zero MAC address prevented interface from autoconfiguring
+---
+ drivers/usb/gadget/function/u_ether.c | 12 ++++++++++--
+ 1 file changed, 10 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c
+index bf8b64d904c..9ce3ab6de34 100644
+--- a/drivers/usb/gadget/u_ether.c
++++ b/drivers/usb/gadget/u_ether.c
+@@ -1224,8 +1224,16 @@
+	dev_warn(&g->dev,
+	    "using random %s ethernet address\n", "self");
+ #ifdef CONFIG_USB_ANDROID_SAMSUNG_COMPOSITE
+-	memcpy(dev->host_mac, ethaddr, ETH_ALEN);
+-	printk(KERN_DEBUG "usb: set unique host mac\n");
++    if ((ethaddr[0] == 0x00) && (ethaddr[1] == 0x00) &&
++        (ethaddr[2] == 0x00) && (ethaddr[3] == 0x00) &&
++        (ethaddr[4] == 0x00) && (ethaddr[5] == 0x00)) {
++        printk(KERN_DEBUG "%s: no unique host MAC was set, generate random\n", __func__);
++        /* we can use random_ether_addr() from include/linux/etherdevice.h */
++        random_ether_addr(ethaddr);
++    } else {
++        printk(KERN_DEBUG "%s: set unique host mac\n", __func__);
++    }
++    memcpy(dev->host_mac, ethaddr, ETH_ALEN);
+ #else
+    if (get_ether_addr(host_addr, dev->host_mac))
+	dev_warn(&g->dev,

device/testing/linux-samsung-zeroltexx/01-fix-red-blue.patch

@@ -0,0 +1,16 @@
+--- a/drivers/video/exynos/decon/decon-int_drv.c
++++ b/drivers/video/exynos/decon/decon-int_drv.c
+@@ -600,11 +600,11 @@
+ 	case 24:
+ 		/* our 24bpp is unpacked, so 32bpp */
+ 		var->bits_per_pixel	= 32;
+-		var->red.offset		= 16;
++		var->red.offset		= 0;
+ 		var->red.length		= 8;
+ 		var->green.offset	= 8;
+ 		var->green.length	= 8;
+-		var->blue.offset	= 0;
++		var->blue.offset	= 16;
+ 		var->blue.length	= 8;
+ 		break;
+ 

device/testing/linux-samsung-zeroltexx/02-fix-wifi-firmware-path.patch

@@ -0,0 +1,35 @@
+--- a/drivers/net/wireless/bcmdhd4358/dhd.h
++++ b/drivers/net/wireless/bcmdhd4358/dhd.h
+@@ -1468,13 +1468,7 @@
+ extern int dhdpcie_set_suspend_resume(struct pci_dev *dev, bool state);
+ #endif /* DHD_USE_IDLECOUNT && BCMPCIE */
+ 
+-#ifdef DHD_LEGACY_FILE_PATH
+-#define PLATFORM_PATH   "/data/"
+-#elif defined(PLATFORM_SLP)
+-#define PLATFORM_PATH   "/opt/etc/"
+-#else
+-#define PLATFORM_PATH   "/data/misc/conn/"
+-#endif /* DHD_LEGACY_FILE_PATH */
++#define PLATFORM_PATH "/lib/firmware/postmarketos/"
+ 
+ /*
+  * Enable this macro if you want to track the calls to wake lock
+--- a/drivers/net/wireless/bcmdhd4359/dhd.h
++++ b/drivers/net/wireless/bcmdhd4359/dhd.h
+@@ -1830,14 +1830,8 @@
+ 
+ extern bool dhd_query_bus_erros(dhd_pub_t *dhdp);
+ 
+-#ifdef DHD_LEGACY_FILE_PATH
+-#define PLATFORM_PATH	"/data/"
+-#elif defined(PLATFORM_SLP)
+-#define PLATFORM_PATH	"/opt/etc/"
+-#else
+-#define PLATFORM_PATH	"/data/misc/conn/"
+-#endif /* DHD_LEGACY_FILE_PATH */
++#define PLATFORM_PATH	"/lib/firmware/postmarketos/"
+ 
+ /*
+  * Enable this macro if you want to track the calls to wake lock
+

device/testing/linux-samsung-zeroltexx/03-fix-fimc-is-firmware-path.patch

@@ -0,0 +1,11 @@
+--- a/drivers/media/platform/exynos/fimc-is/fimc-is-sec-define.h
++++ b/drivers/media/platform/exynos/fimc-is/fimc-is-sec-define.h
+@@ -103,7 +103,7 @@
+ #define FIMC_IS_2P2_SETF			"setfile_2p2.bin"
+ #define FIMC_IS_COMPANION_MASTER_SETF			"companion_master_setfile.bin"
+ #define FIMC_IS_COMPANION_MODE_SETF			"companion_mode_setfile.bin"
+-#define FIMC_IS_FW_PATH				"/system/vendor/firmware/"
++#define FIMC_IS_FW_PATH				"/lib/firmware/postmarketos/"
+ #define FIMC_IS_FW_DUMP_PATH			"/data/"
+ 
+ #define FIMC_IS_FW_BASE_MASK			((1 << 26) - 1)

device/testing/linux-samsung-zeroltexx/APKBUILD

@@ -0,0 +1,67 @@
+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm64/configs/lineageos_zerofltexx_defconfig
+
+pkgname=linux-samsung-zeroltexx
+pkgver=3.10.108
+pkgrel=0
+pkgdesc="Samsung Galaxy S6 edge kernel fork"
+arch="aarch64"
+_carch="arm64"
+_flavor="samsung-zeroltexx"
+url="https://github.com/Exynos7420/android_kernel_samsung_exynos7420"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps pmb:cross-native"
+makedepends="bash bc linux-headers installkernel devicepkg-dev dtbtool-exynos"
+
+# Source
+_repository="android_kernel_samsung_exynos7420"
+_commit="31cf7c95814358c4cd76feacf2f29bebc057fefc"
+_config="config-$_flavor.$arch"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/Exynos7420/$_repository/archive/$_commit.tar.gz
+	$_config
+	01-fix-red-blue.patch
+	02-fix-wifi-firmware-path.patch
+	03-fix-fimc-is-firmware-path.patch
+	Makefile_fix_paths.patch
+	gcc10-extern_YYLOC_global_declaration.patch
+	0007-usb_gadget-set-random-rndis-host-MAC-address-to-prev.patch
+"
+
+builddir="$srcdir/$_repository-$_commit"
+_outdir="out"
+
+prepare() {
+	default_prepare
+	. downstreamkernel_prepare
+}
+
+build() {
+	unset LDFLAGS
+	make O="$_outdir" ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+
+	# Master DTB (deviceinfo_bootimg_qcdt)
+	dtbTool-exynos --pagesize 2048 \
+		--platform 0x50a6 \
+		--subtype  0x217584da \
+		-o "$_outdir/arch/$_carch/boot"/dt.img \
+		$(find "$_outdir/arch/$_carch/boot/dts/" -name *zerolte_eur_open_*.dtb)
+}
+
+package() {
+	KERNEL_IMAGE_NAME="Image" downstreamkernel_package "$builddir" "$pkgdir" "$_carch" "$_flavor" "$_outdir"
+	install -Dm644 "$_outdir/arch/$_carch/boot"/dt.img \
+		"$pkgdir"/boot/dt.img
+}
+
+sha512sums="
+1f8917dfaf01865cbc0385579cad1565dcb1ec4445bbeaf3e70d0bd8a6a572a457813c311f54360f54c79b373e621d280982f560cf01091d156c90efcc98067b  linux-samsung-zeroltexx-31cf7c95814358c4cd76feacf2f29bebc057fefc.tar.gz
+48b7cde7bbd96931486f480c519adac057f3d7c74eff7ae6838f1084ed9b9a2ccb5f61c86d4dd21dc7ed292c5332d2adf4ee0a79476baacfcd47c193c6b84644  config-samsung-zeroltexx.aarch64
+f3e4770bb251efefce312986eeec6c5a8a55066c5408cdd10e00ab2657a4bff155da6a19155ceaf39c5f34cc02cbbb7866aa7b4e65c33cdd3cff4590fadba2a4  01-fix-red-blue.patch
+9afbb020311f0bf8043f021292d0f05041ff4e29003bf2114dfc31906869f44dbf15ff560170bc9e9baf62d7bb4ed73d58415212fecac6f1bdd6886783b0fcc1  02-fix-wifi-firmware-path.patch
+c98a074f46376936493b74285632cf38818bdb9d5e7b70b5b291aa8774711a93f352cb569d856215ebc75a33f819a8ce6cd5ccbee506d0a81141938924cf45e3  03-fix-fimc-is-firmware-path.patch
+00aac98cfbaa68bd30c41622b12f38106f6595e2d74ee5cdd05add56f03facb4db45deb43b5df997143b54497d621b9fc5bae7207898c70df0672ebb482c4b46  Makefile_fix_paths.patch
+2b48f1bf0e3f70703d2cdafc47d5e615cc7c56c70bec56b2e3297d3fa4a7a1321d649a8679614553dde8fe52ff1051dae38d5990e3744c9ca986d92187dcdbeb  gcc10-extern_YYLOC_global_declaration.patch
+8684da1ef7032cb2160c9b071b2bf8cb57a31f5527ee3f6e9e3b58fa485a0ff244e3bc85446c8b09f5b5cec7d1a3f92da681f63495728aaa547438c93eb375d5  0007-usb_gadget-set-random-rndis-host-MAC-address-to-prev.patch
+"

device/testing/linux-samsung-zeroltexx/Makefile_fix_paths.patch

@@ -0,0 +1,15 @@
+diff --git a/Makefile b/Makefile
+--- a/Makefile
++++ b/Makefile
+@@ -197,11 +197,6 @@
+ CROSS_COMPILE   ?= ../PLATFORM/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-
+ #CROSS_COMPILE   ?= /opt/toolchains/aarch64-linux-android-4.9/bin/aarch64-linux-android-
+ 
+-ifeq ($(shell uname -s),Linux)
+-  ifeq ($(shell uname -m),x86_64)
+-    override CROSS_COMPILE	:= $(srctree)/../../../prebuilts/linaro/linux-x86/aarch64/bin/aarch64-linux-gnu-
+-  endif
+-endif
+ 
+ # Architecture as present in compile.h
+ UTS_MACHINE 	:= $(ARCH)

device/testing/linux-samsung-zeroltexx/gcc10-extern_YYLOC_global_declaration.patch

@@ -0,0 +1 @@
+../../.shared-patches/linux/gcc10-extern_YYLOC_global_declaration.patch