add support for xiaomi-ido (Xiaomi Redmi 3 [Pro]) (#1043)

Device boots, weston starts, ssh works, osk-sdl works

device/device-xiaomi-ido/APKBUILD

@@ -0,0 +1,29 @@
+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-xiaomi-ido"
+pkgdesc="Xiaomi Xiaomi RedMi 3"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="noarch"
+options="!check"
+depends="linux-xiaomi-ido mkbootimg"
+makedepends="devicepkg-dev"
+source="deviceinfo
+	fb.modes
+	initfs-hook.sh"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+	install -Dm644 "$srcdir"/fb.modes "$pkgdir"/etc/fb.modes
+        install -Dm644 "$srcdir"/initfs-hook.sh "$pkgdir"/etc/postmarketos-mkinitfs/hooks/00-${pkgname}.sh
+
+}
+
+sha512sums="71067cb3a218b9d3055b241c3fce6ef8b487fda9c415d9d0b94ee793886c8ff57cc4d174f6cd655cc3d034b08a6496b606657cac1dd2000eb4c110ef62e00bfd  deviceinfo
+8a72f8d34fd0a8c7b6de0a2ab16e255b3fe28993e1aef7c25c3c4becc5851e51f5dcc3814acc75c8bb829bc02d180d976ee3877a98982d29cfc5cb7ea84f1c32  fb.modes
+3b46dfab8465935349a8775e0247a3ea4274c16a9f526f17e1397ae2f6bdef11d9cbd969dc630a7d647e4130f5a2f1a8e85357fc34a5b1900411f9219a62b38e  initfs-hook.sh"

device/device-xiaomi-ido/deviceinfo

@@ -0,0 +1,33 @@
+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="Xiaomi RedMi 3"
+deviceinfo_manufacturer="Xiaomi"
+deviceinfo_date=""
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_external_disk_install="false"
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_disk="true"
+deviceinfo_screen_width="720"
+deviceinfo_screen_height="1080"
+deviceinfo_dev_touchscreen="/dev/input/event0"
+deviceinfo_dev_touchscreen_calibration=""
+deviceinfo_dev_keyboard=""
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="console=none androidboot.hardware=qcom ehci-hcd.park=3 androidboot.bootdevice=7824900.sdhci lpm_levels.sleep_disabled=1 buildvariant=userdebug"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="true"
+deviceinfo_flash_offset_base="0x80000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_pagesize="2048"
+

device/device-xiaomi-ido/fb.modes

@@ -0,0 +1,9 @@
+
+mode "720x1280-1"
+	# D: 1.991 MHz, H: 1.872 kHz, V: 1.428 Hz
+	geometry 720 1280 720 1280 16
+	timings 502165 160 160 12 15 24 4
+	accel false
+	rgba 8/0,8/8,8/16,8/24
+endmode
+

device/device-xiaomi-ido/initfs-hook.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+# postmarketos-mkinitfs's init script does already have a framebuffer workaround script
+# but that script checks if fb0/mode is empty. in our case, it already has the correct value
+# but the framebuffer is nevertheless not doing anything.
+# additionally if we set the mode again the at time the postmarketos init script does,
+# absolutely nothing happens. It seems to work if we sleep 5 seconds to give whatever needs
+# more time, more time and then set the framebuffer mode again.
+
+
+set_xiaomi_ido_framebuffer_mode() {
+	[ -e "/sys/class/graphics/fb0/modes" ] || return
+	[ -e "/sys/class/graphics/fb0/mode" ] || return
+
+	_mode="$(cat /sys/class/graphics/fb0/modes)"
+	echo "Setting framebuffer mode to: $_mode"
+	echo "$_mode" > /sys/class/graphics/fb0/mode
+}
+
+sleep 5 && set_xiaomi_ido_framebuffer_mode &

device/linux-xiaomi-ido/01_fix_gcc6_errors.patch

@@ -0,0 +1,68 @@
+From 44f841be2a223d672eaf9fa3029fd9249aeca583 Mon Sep 17 00:00:00 2001
+From: MOVZX <movzx@yahoo.com>
+Date: Tue, 25 Apr 2017 17:04:40 +0300
+Subject: [PATCH] prima: Fix GCC6 Warnings
+
+Signed-off-by: MOVZX <movzx@yahoo.com>
+---
+ drivers/staging/prima/CORE/MAC/src/include/utilsApi.h          | 2 +-
+ drivers/staging/prima/CORE/MAC/src/pe/sch/schBeaconGen.c       | 2 +-
+ drivers/staging/prima/CORE/SME/src/csr/csrApiScan.c            | 2 +-
+ drivers/staging/prima/CORE/VOSS/src/wlan_nv_template_builtin.c | 5 ++---
+ 4 files changed, 5 insertions(+), 6 deletions(-)
+
+diff --git a/drivers/staging/prima/CORE/MAC/src/include/utilsApi.h b/drivers/staging/prima/CORE/MAC/src/include/utilsApi.h
+index 3a175473378..798a05cd2b4 100644
+--- a/drivers/staging/prima/CORE/MAC/src/include/utilsApi.h
++++ b/drivers/staging/prima/CORE/MAC/src/include/utilsApi.h
+@@ -705,7 +705,7 @@ halRoundS32(tANI_S32 p)
+     else
+         k = p;
+ 
+-        return(k);
++    return(k);
+ }
+ 
+ // New functions for endianess conversion
+diff --git a/drivers/staging/prima/CORE/MAC/src/pe/sch/schBeaconGen.c b/drivers/staging/prima/CORE/MAC/src/pe/sch/schBeaconGen.c
+index 0fc798995ae..6427a04e108 100644
+--- a/drivers/staging/prima/CORE/MAC/src/pe/sch/schBeaconGen.c
++++ b/drivers/staging/prima/CORE/MAC/src/pe/sch/schBeaconGen.c
+@@ -60,7 +60,7 @@
+ // Temporarily (maybe for all of Alpha-1), assuming TIM = 0
+ //
+ 
+-const tANI_U8 P2pOui[] = {0x50, 0x6F, 0x9A, 0x9};
++tANI_U8 P2pOui[] = {0x50, 0x6F, 0x9A, 0x9};
+ 
+ 
+ tSirRetStatus schGetP2pIeOffset(tANI_U8 *pExtraIe, tANI_U32 extraIeLen, tANI_U16 *pP2pIeOffset)
+diff --git a/drivers/staging/prima/CORE/SME/src/csr/csrApiScan.c b/drivers/staging/prima/CORE/SME/src/csr/csrApiScan.c
+index 23ab858c355..b4f26def1d1 100644
+--- a/drivers/staging/prima/CORE/SME/src/csr/csrApiScan.c
++++ b/drivers/staging/prima/CORE/SME/src/csr/csrApiScan.c
+@@ -5698,7 +5698,7 @@ static tANI_BOOLEAN csrScanProcessScanResults( tpAniSirGlobal pMac, tSmeCmd *pCo
+         if (eHAL_STATUS_SUCCESS != status)
+             smsLog(pMac, LOGE,
+                    FL( "failed to update the supported channel list"));
+-            pMac->scan.defer_update_channel_list = false;
++        pMac->scan.defer_update_channel_list = false;
+     }
+ 
+ #ifdef WLAN_AP_STA_CONCURRENCY
+diff --git a/drivers/staging/prima/CORE/VOSS/src/wlan_nv_template_builtin.c b/drivers/staging/prima/CORE/VOSS/src/wlan_nv_template_builtin.c
+index 14c6eadf524..e26b697f793 100644
+--- a/drivers/staging/prima/CORE/VOSS/src/wlan_nv_template_builtin.c
++++ b/drivers/staging/prima/CORE/VOSS/src/wlan_nv_template_builtin.c
+@@ -587,9 +587,8 @@ _NV_TEMPLATE_TABLE NvTablesBuiltIn[/*TABLES_MAX*/][TABLE_ENTRIES_MAX] = {
+          ((char *)&(nvDefaults.tables.hwCalValues.calData.psSlpTimeOvrHdxLNA5G) -
+           (char *)&nvDefaults.tables.hwCalValues.calData),"psSlpTimeOvrHdxLNA5G"},
+       {"ed",_ID_U8,SINGULAR,0,0,0,
+-         (((char *)&(nvDefaults.tables.hwCalValues.calData.psSlpTimeOvrHdxLNA5G) +
+-          sizeof(uint16)) - (char *)&nvDefaults.tables.hwCalValues.calData),
+-         "nv_TxBBFSel9MHz"},
++         ((char *)&(nvDefaults.tables.hwCalValues.calData.psSlpTimeOvrHdxLNA5G) -
++          (char *)&nvDefaults.tables.hwCalValues.calData),"nv_TxBBFSel9MHz"},
+       {"ee",_ID_U8,SINGULAR,0,0,0,
+          ((char *)&(nvDefaults.tables.hwCalValues.calData.hwParam2) -
+           (char *)&nvDefaults.tables.hwCalValues.calData),"hwParam2"},

device/linux-xiaomi-ido/APKBUILD

@@ -0,0 +1,83 @@
+# Kernel config based on: arch/arm64/configs/lineage_ido_defconfig
+
+pkgname="linux-xiaomi-ido"
+pkgver=3.10.107
+pkgrel=2
+pkgdesc="Xiaomi Xiaomi RedMi 3 kernel fork"
+arch="aarch64"
+_carch="arm64"
+_flavor="xiaomi-ido"
+url="https://kernel.org"
+license="GPL2"
+options="!strip !check !tracedeps"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-dev dtbtool python"
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+# Source
+_repository="android_kernel_xiaomi_msm8916"
+_commit="8f4c7c59fb3a29344af202150030ae712f801d6b"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	compiler-gcc6.h
+	01_fix_gcc6_errors.patch
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+
+	# gcc6 support
+	cp -v "$srcdir/compiler-gcc6.h" "$builddir/include/linux/"
+
+	# Remove -Werror from all makefiles
+	find . -type f -name Makefile -print0 | \
+		xargs -0 sed -i 's/-Werror-/-W/g'
+	find . -type f -name Makefile -print0 | \
+		xargs -0 sed -i 's/-Werror//g'
+
+	# Prepare kernel config ('yes ""' for kernels lacking olddefconfig)
+	cp "$srcdir"/$_config "$builddir"/.config
+	yes "" | make ARCH="$_carch" HOSTCC="$HOSTCC" oldconfig
+}
+
+menuconfig() {
+	cd "$builddir"
+	make ARCH="$_carch" menuconfig
+	cp .config "$startdir"/$_config
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+	dtbTool -s 2048 -p "scripts/dtc/" -o "arch/arm/boot/dt.img" "arch/arm/boot/"
+}
+
+package() {
+	# kernel.release
+	install -D "$builddir/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	# zImage (find the right one)
+	cd "$builddir/arch/$_carch/boot"
+	_target="$pkgdir/boot/vmlinuz-$_flavor"
+	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
+		[ -e "$_zimg" ] || continue
+		msg "zImage found: $_zimg"
+		install -Dm644 "$_zimg" "$_target"
+		break
+	done
+	if ! [ -e "$_target" ]; then
+		error "Could not find zImage in $PWD!"
+		return 1
+	fi
+	install -Dm644 "$builddir/arch/arm/boot/dt.img" "$pkgdir/boot/dt.img"
+}
+
+sha512sums="e22e3cff0819edd2d9f0f16bc952a97773a8b4b36394ab6acf61fd619988d6d0bf1f7d29cba904a09ca0c63209fcedcdf65ee522646193980c5ac6c60e1c3a97  linux-xiaomi-ido-8f4c7c59fb3a29344af202150030ae712f801d6b.tar.gz
+c7b9c2900c7d9fa49ea8ceb511092e58aa57e3cf6808e0c9130fac5a5619c7e67b7292e5c4dd23b0a9d3f14f73ba26cbc6c926d5947974395fd602c65324cc1d  config-xiaomi-ido.aarch64
+d80980e9474c82ba0ef1a6903b434d8bd1b092c40367ba543e72d2c119301c8b2d05265740e4104ca1ac5d15f6c4aa49e8776cb44264a9a28dc551e0d1850dcc  compiler-gcc6.h
+972e98523d6ef06342e69a09e979bdd86904cf7f9a843b519b37791e531b680182564a2ab537c94629c3589f4e775b2c39de04c64e210a0f8b6f10745c3596f1  01_fix_gcc6_errors.patch"

device/linux-xiaomi-ido/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 */
+