-# unicens2-binding
-Expose MicroChip MOST APIs on AGL(Automotive Grade Linux) and other Linux distributions
+------------------------------------------------------------------------
+AGL-UNICENS binding expose UNICENS-V2 APIs through AGL framework
+------------------------------------------------------------------------
+
+Cloning Audio-Binding from Git
+-------------------------------------------------------
+
+```
+git clone --recurse-submodules https://github.com/iotbzh/unicens2-binding
+cd unicens2-binding
+```
+
+AFB_daemon dependency on Standard Linux Distributions
+-------------------------------------------------------
+ # handle dependencies > (OpenSuse-42.2, Fedora-25, Ubuntu 16.04.2LTS)
+ gcc > 4.8
+ systemd-devel (libsystemd-dev>=222)
+ libuuid-devel
+ file-devel(OpenSuSe) or libmagic-dev(Ubuntu)
+ libjson-c-devel
+ alsa-devel
+ ElectricFence (BUG should not be mandatory)
+ libopenssl-devel libgcrypt-devel libgnutls-devel (optional but requested by libmicrohttpd for https)
+ libxml2-devel
+
+ OpenSuse >=42.2
+ zypper in gcc5 gdb gcc5-c++ git cmake make ElectricFence systemd-devel libopenssl-devel libuuid-devel alsa-devel libgcrypt-devel libgnutls-devel libjson-c-devel file-devel libxml2-devel
+
+ Ubuntu >= 16.4 libuuid-devel
+ apt-get install cmake git electric-fence libsystemd-dev libssl-dev uuid-dev libasound2-dev libgcrypt20-dev libgnutls-dev libgnutls-dev libjson-c-dev libmagic-dev libxml2-dev
+
+ libmicrohttpd>=0.9.55 (as today OpenSuse-42.2 or Ubuntu-.16.4 ship older versions)
+ afb-daemon from AGL Gerrit git clone https://gerrit.automotivelinux.org/gerrit/src/app-framework-binder
+
+```
+ # Might want to add following variables into ~/.bashrc
+ echo "#---------- AGL options Start ---------" >>~/.bashrc
+ echo "# Object: AGL cmake option for binder/bindings" >>~/.bashrc
+ echo "# Date: `date`" >>~/.bashrc
+ echo 'export CC=gcc-5; export CXX=g++-5' >>~/.bashrc # if using gcc5
+ echo 'export INSTALL_PREFIX=$HOME/opt' >>~/.bashrc
+ echo 'export LD_LIBRARY_PATH=$INSTALL_PREFIX/lib64:$INSTALL_PREFIX/lib' >>~/.bashrc
+ echo 'export LIBRARY_PATH=$INSTALL_PREFIX/lib64:$INSTALL_PREFIX/lib' >>~/.bashrc
+ echo 'export PKG_CONFIG_PATH=$INSTALL_PREFIX/lib64/pkgconfig:$INSTALL_PREFIX/lib/pkgconfig' >>~/.bashrc
+ echo 'export PATH=$INSTALL_PREFIX/bin:$PATH' >>~/.bashrc
+ echo 'export RSYNC_TARGET=MY_TARGET_HOSTNAME' >>~/.bashrc
+ echo 'export RSYNC_PREFIX=./opt' >>~/.bashrc
+
+ echo "#---------- AGL options End ---------" >>~/.bashrc
+ source ~/.bashrc
+
+ # install LibMicroHttpd
+ LIB_MH_VERSION=0.9.55
+ wget https://ftp.gnu.org/gnu/libmicrohttpd/libmicrohttpd-${LIB_MH_VERSION}.tar.gz
+ tar -xzf libmicrohttpd-${LIB_MH_VERSION}.tar.gz
+ cd libmicrohttpd-${LIB_MH_VERSION}
+ ./configure --prefix=${INSTALL_PREFIX}
+ make
+ sudo make install-strip
+
+ # retrieve last AFB_daemon from AGL
+ git clone https://gerrit.automotivelinux.org/gerrit/src/app-framework-binder
+
+ # Warning: previous GCC options should be set before initial cmake (clean Build/*)
+ cd app-framework-binder; mkdir -p build; cd build
+ cmake -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX ..
+ make
+ make install
+```
+
+
+# Compile binding
+
+```
+ source ~/.bashrc # or any other file where your have place your compilation preferences
+ mkdir -p build
+ cd build
+ cmake -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX ..
+ make
+
+ afb-daemon --workdir=.. --ldpaths=build --port=1234 --roothttp=./htdocs --token="" --verbose
+
+ speaker-test -twav -D hw:ep01 -c 2
+ firefox http://localhost:1234
+```
+
+# Archive
+
+```
+VERSION=0.1
+GIT_TAG=master
+PKG_NAME=UNICENS-agent
+git archive --format=tar.gz --prefix=${PKG_NAME}-${VERSION}/ ${GIT_TAG} -o ${PKG_NAME}_${VERSION}.orig.tar.gz
+```
+
+# Local Source Debug with GDB
+
+Warning: technically AGL bindings are shared libraries loaded thought 'dlopen'. GDB supports source debug of dynamically
+loaded libraries, but user should be warn that the actual path to sharelib symbols is directly inherited from DLOPEN.
+As a result if you change your directory after binder start with --workdir=xxx then GDB will not find symbols anymore
+
+```
+ Examples:
+
+ # WORK when running in direct
+ afb-daemon --workdir=.. --ldpaths=build --port=1234 --roothttp=./htdocs
+
+ # FAIL when using GDB with warning: Could not load shared library ....
+ gdb -args afb-daemon --workdir=.. --ldpaths=build --port=1234 --roothttp=./htdocs
+ ...
+ warning: Could not load shared library symbols for ./build/ucs2-afb/afb-ucs2.so.
+ Do you need "set solib-search-path" or "set sysroot"?
+ ...
+```
+
+To debug sharelib symbol path: start your binder under GDB. Then break your session after the binder has
+loaded its bindings. Finally use "info sharedlibrary" and check 'SymsRead'. If equal to 'No' then either you start GDB
+from the wrong relative directory, either you have to use 'set solib-search-path' to force the path.
+
+```
+ gdb -args afb-daemon --workdir=.. --ldpaths=build --port=1234 --roothttp=./htdocs
+ run
+ ...
+ NOTICE: API UNICENS added
+ NOTICE: Waiting port=1234 rootdir=.
+ NOTICE: Browser URL= http://localhost:1234
+ (hit Ctrl-C to break the execution)
+ info sharedlibrary afb-*
+```
+
+# Running an debugging on a target
+
+```
+export RSYNC_TARGET=root@xx.xx.xx.xx
+export RSYNC_PREFIX=/opt # WARNING: installation directory should exist
+
+mkdir $RSYNC_TARGET
+cd $RSYNC_TARGET
+
+cmake -DRSYNC_TARGET=$RSYNC_TARGET -DRSYNC_PREFIX=$RSYNC_PREFIX ..
+make remote-target-populate
+
+ ./build/target/start-${RSYNC_TARGET}.sh
+ firefox http://localhost:1234 # WARNING: do not forget firewall if any
+
+ ssh -tt ${RSYNC_TARGET} speaker-test -twav -D hw:ep01 -c 2
+```
+
+Note: remote-target-populate will
+ - create a script to remotely start the binder on the target in ./build/target/start-on-target-name.sh
+ - create a gdbinit file to transparently debug remotely in source code with gdb -x ./build/target/gdb-on-target-name.ini
+ - to run and debug directly from your IDE just configure the run and debug properties with the corresponding filename
+
+Note that Netbeans impose to set debug directory to ./build/pkgout or it won't find binding symbols for source debugging
+
+# Default Volume of Amplifiers
+The binding currently supports two use cases for amplifiers.
+1. Amplifiers are initialized with a default volume. The head unit uses software volume
+ to change the volume of streaming data.
+2. Amplifiers are initialized muted. The head unit uses hardware volume (e.g. HAL-MOST-UNICENS)
+ to change the volume of amplifiers remotely.
+
+Use case 2 is the default use case. If you like to use this binding without hardware volume support
+please adopt the ```config_multichannel_audio_kit.xml``` as explained below.
+
+```
+<!-- Register 7: Master Volume (Max Volume=07 00 00 and Min Volume=07 03 FF) -->
+<!-- - together with HAL-MOST-UNICENS binding use "07 03 FF" = muted after start -->
+<!-- - otherwise use "07 01 50" = default volume -->
+<I2CPortWrite Address="0x2A" Payload="07 03 FF"/>
+```
Code Review / apps / agl-service-unicens.git / blobdiff