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|
------------------------------------------------------------------------
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"/>
```
|
