Old repository migration

.gitignore

@@ -15,6 +15,8 @@
 *.pyc
 *.bak
 *.old
+*.log
+
 ### macOS ###
 # General
 .DS_Store

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "buildroot"]
+	path = buildroot
+	url = https://github.com/buildroot/buildroot.git

README.md

@@ -4,3 +4,130 @@ For details about the YIO Remote, please visit our documentation repository whic
 <https://github.com/YIO-Remote/documentation>
 
 This repository contains the custom Linux OS built with [buildroot](https://www.buildroot.org/) for the YIO Remote.
+
+## Build
+
+Requirements:
+
+- Preferably a Linux box or VM.
+- At least 20 GB of free space.
+- At least 4 GB RAM. More RAM = better file system caching.
+- Fast CPU with many cores for quicker build times.
+- SSD is highly recommended.
+- Internet connection: packages will be downloaded during the build.
+- 1+ GB microSD card
+  - Future images might be larger!
+  - Recommended card: Samsung EVO Plus (64 and 128GB have much higher write speed!)
+  - See: [RPi microSD card performance comparison 2019](https://www.jeffgeerling.com/blog/2019/raspberry-pi-microsd-card-performance-comparison-2019)
+
+### Prepare Build Environment
+
+#### Linux Ubuntu 18.04.3 or newer
+
+- If you just need a headless build VM then use the minimal [Ubuntu 18.04.3 LTS Server](http://cdimage.ubuntu.com/releases/18.04.3/release/) version.
+- Some packages might already be installed depending on the version (desktop or server).
+
+Install required tools:
+
+1. Prepare Ubuntu for buildroot:
+
+        sudo apt-get install \
+          build-essential \
+          g++ \
+          gettext \
+          patch \
+          git \
+          libncurses5-dev \
+          libtool \
+          python \
+          texinfo \
+          unzip
+
+2. Optional: convenient packages for development
+
+        sudo apt-get install \
+          mc \
+          nano \
+          screen
+
+3. Optional: SSH server for remote access
+
+        sudo apt-get install openssh-server
+
+#### macOS
+
+TODO
+
+#### Windows
+
+TODO maybe
+
+### Build SD Card Image
+
+#### Initial Checkout
+
+    SRC_DIR=~/projects/yio
+
+    mkdir -p ${SRC_DIR}
+    cd ${SRC_DIR}
+    git clone https://github.com/YIO-Remote/remote-os.git
+
+    # switch to development branch
+    cd remote-os
+    git checkout develop
+
+    # checkout buildroot (Git submodule)
+    git submodule init
+    git submodule update
+
+#### Build Image
+
+    cd ${SRC_DIR}/remote-os/buildroot
+
+    make defconfig BR2_DEFCONFIG=../yio_rpi0w_defconfig
+    make
+
+Hint: redirect the `make` output log into a logfile to easy find an error during building or when using `screen` without scrollback capability:
+
+    make 2>&1 | tee ../buildlog-$(date +"%Y%m%d_%H%M%S").log
+
+The built SD card image can be found at: `${SRC_DIR}/remote-os/buildroot/output/images/yio-remote-sdcard.img`
+
+#### Buildroot Commands
+
+TODO: shortly describe the main commands (menuconfig, clean, rebuild, etc.)
+
+#### Write SD Card Image
+
+Use [balenaEtcher](https://www.balena.io/etcher/) - available for Linux, macOS and Windows - or your favorite tool.
+
+## Technology Research
+
+The following technologies were / are investigated for finding an easy and automated solution to build the RPi image.
+
+### Docker
+
+Docker works best for running services. But it can also be used to build software or anything else. Well, that's a service too :-)
+
+TODO:
+
+- [ ] Docker setup using Docker Volumes for the build cache. (Volume mounts have too many issues on Windows).
+
+### Vagrant
+
+Vagrant would be perfect for building the RPi image. Everything could be automated and one would only have to type `vagrant up`.
+
+Found issues so far:
+
+- Almost all official Linux boxes have a 'small' 10 GB disk:
+  - Not enough to build the image.
+  - No standard way of extending the disk, or limited to one virtualization provider.
+  - Synced folders don't work because of hard links
+- Serious issues with VirtualBox 6 in combination with newer Ubuntu images
+  - Bootup takes 5+ minutes instead of seconds
+  - Issue is something with the UART console
+
+TODO:
+
+- [ ] Search for suitable official Box with at least 20 GB volume
+- [ ] Investigate further...

board/yio-remote/rpi0/cmdline.txt

@@ -0,0 +1 @@
+logo.nologo root=/dev/mmcblk0p2 rootwait rootfstype=ext4 quiet fastboot vt.global_cursor_default=0 console=tty9 loglevel=3

board/yio-remote/rpi0/config.json

@@ -0,0 +1,132 @@
+{
+    "areas": [
+        {
+            "area": "Entrance",
+            "bluetooth": "xx:xx:xx:xx:xx"
+        },
+        {
+            "area": "Kitchen",
+            "bluetooth": "xx:xx:xx:xx:xx"
+        }
+    ],
+    "entities": [
+        {
+            "data": [
+                {
+                    "area": "Entrance",
+                    "entity_id": "light.backdoor_lamp",
+                    "favorite": false,
+                    "friendly_name": "Backdoor lamp",
+                    "integration": "homeassistant",
+                    "supported_features": [
+                        "BRIGHTNESS"
+                    ],
+                    "type": "light"
+                }
+            ],
+            "type": "light"
+        },
+        {
+            "data": [
+                {
+                    "area": "Bedroom",
+                    "entity_id": "cover.bedroom_blinds_level",
+                    "favorite": false,
+                    "friendly_name": "Bedroom blinds",
+                    "integration": "homeassistant",
+                    "supported_features": [
+                        "OPEN",
+                        "CLOSE",
+                        "STOP",
+                        "POSITION"
+                    ],
+                    "type": "blind"
+                }
+            ],
+            "type": "blind"
+        },
+        {
+            "data": [
+                {
+                    "area": "Kitchen",
+                    "attributes": {
+                        "state": "off"
+                    },
+                    "entity_id": "media_player.kitchen",
+                    "favorite": false,
+                    "friendly_name": "Kitchen speaker",
+                    "integration": "homeassistant",
+                    "supported_features": [
+                        "SOURCE",
+                        "APP_NAME",
+                        "VOLUME",
+                        "VOLUME_UP",
+                        "VOLUME_DOWN",
+                        "VOLUME_SET",
+                        "MUTE",
+                        "MUTE_SET",
+                        "MEDIA_TYPE",
+                        "MEDIA_TITLE",
+                        "MEDIA_ARTIST",
+                        "MEDIA_ALBUM",
+                        "MEDIA_DURATION",
+                        "MEDIA_POSITION",
+                        "MEDIA_IMAGE",
+                        "PLAY",
+                        "PAUSE",
+                        "STOP",
+                        "PREVIOUS",
+                        "NEXT",
+                        "SEEK",
+                        "SHUFFLE",
+                        "TURN_ON",
+                        "TURN_OFF"
+                    ],
+                    "type": "media_player"
+                }
+            ],
+            "type": "media_player"
+        }
+    ],
+    "integration": [
+        {
+            "connectionOpen": true,
+            "data": {
+                "ip": "ip:port",
+                "token": "xxxxxx"
+            },
+            "friendly_name": "Home Assistant",
+            "id": 1,
+            "plugin": "homeassistant",
+            "type": "homeassistant"
+        }
+    ],
+    "language": "en_US",
+    "settings": {
+        "autobrightness": true,
+        "darkmode": true,
+        "menu": {
+            "order": [
+                {
+                    "display_name": "Favorites",
+                    "displayname": "Favorites",
+                    "name": "favorites",
+                    "show": true
+                },
+                {
+                    "display_name": "Settings",
+                    "displayname": "Settings",
+                    "name": "settings",
+                    "show": true
+                }
+            ],
+            "showareas": true,
+            "showdevices": true
+        },
+        "proximity": 40,
+        "shutdowntime": 7200,
+        "softwareupdate": false,
+        "wifitime": 240,
+        "bluetootharea": false
+    }
+}

board/yio-remote/rpi0/config.txt

@@ -0,0 +1,28 @@
+dtoverlay=sharp
+overscan_left=0
+overscan_right=0
+overscan_top=0
+overscan_bottom=0
+framebuffer_width=480
+framebuffer_height=800
+enable_dpi_lcd=1
+display_default_lcd=1
+dpi_group=2
+dpi_mode=87
+dpi_output_format=454678
+hdmi_timings=480 0 16 16 24 800 0 4 2 2 0 0 0 60 0 32000000 6
+
+dtoverlay=goodix
+
+boot_delay=0
+disable_splash=1
+
+gpu_mem=128
+
+arm_freq=1000
+arm_freq_min=700
+force_turbo=0
+
+dtoverlay=pi3-miniuart-bt
+enable_uart=1
+core_freq=250

board/yio-remote/rpi0/genimage-rpi0.cfg

@@ -0,0 +1,34 @@
+image boot.vfat {
+  vfat {
+    # set volume name with mkfs.vfat parameter
+    extraargs = "-n \"YIO boot\""
+    files = {
+      "bcm2708-rpi-0-w.dtb",
+      "config.txt",
+      "cmdline.txt",
+      "config.json",
+      "rpi-firmware/bootcode.bin",
+      "rpi-firmware/fixup.dat",
+      "rpi-firmware/start.elf",
+      "overlays",
+      "kernel.img"
+    }
+  }
+  size = 32M
+}
+
+image yio-remote-sdcard.img {
+  hdimage {
+  }
+
+  partition boot {
+    partition-type = 0xC
+    bootable = "true"
+    image = "boot.vfat"
+  }
+
+  partition rootfs {
+    partition-type = 0x83
+    image = "rootfs.ext4"
+  }
+}

board/yio-remote/rpi0/patches/wiringpi/0003-mcp23017.patch

@@ -0,0 +1,11 @@
+--- /wiringPi/mcp23017.c
++++ /wiringPi/mcp23017.c
+@@ -176,7 +176,7 @@
+   int fd ;
+   struct wiringPiNodeStruct *node ;
+
+-  if ((fd = wiringPiI2CSetup (i2cAddress)) < 0)
++  if ((fd = wiringPiI2CSetupInterface ("/dev/i2c-3",i2cAddress)) < 0)
+     return FALSE ;
+
+   wiringPiI2CWriteReg8 (fd, MCP23x17_IOCON, IOCON_INIT) ;

board/yio-remote/rpi0/post-build.sh

@@ -0,0 +1,27 @@
+#!/bin/sh
+
+set -u
+set -e
+
+# Add a console on tty1
+if [ -e ${TARGET_DIR}/etc/inittab ]; then
+    grep -qE '^tty1::' ${TARGET_DIR}/etc/inittab || \
+	sed -i '/GENERIC_SERIAL/a\
+tty1::respawn:/sbin/getty -L  tty1 0 vt100 # HDMI console' ${TARGET_DIR}/etc/inittab
+fi
+
+ln -fs ../../../../usr/lib/systemd/system/wpa_supplicant@.service $1/etc/systemd/system/multi-user.target.wants/wpa_supplicant@wlan0.service
+
+ln -fs ../../../../usr/lib/systemd/system/backlight.service $1/etc/systemd/system/multi-user.target.wants/backlight.service
+
+ln -fs ../../../../usr/lib/systemd/system/sharp-init.service $1/etc/systemd/system/multi-user.target.wants/sharp-init.service
+
+ln -fs ../../../../usr/lib/systemd/system/app.service $1/etc/systemd/system/multi-user.target.wants/app.service
+
+
+rm -rf $1/var/log/journal
+
+#rm -r $1/etc/systemd/system/sysinit.target.wants/systemd-timesyncd.service
+
+#rm -r $1/etc/systemd/system/multi-user.target.wants/dhcpcd.service
+