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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the documentation of the Qt Automotive Suite.
**
** $QT_BEGIN_LICENSE:FDL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite licenses may use
** this file in accordance with the commercial license agreement provided
** with the Software or, alternatively, in accordance with the terms
** contained in a written agreement between you and The Qt Company. For
** licensing terms and conditions see https://www.qt.io/terms-conditions.
** For further information use the contact form at https://www.qt.io/contact-us.
**
** GNU Free Documentation License Usage
** Alternatively, this file may be used under the terms of the GNU Free
** Documentation License version 1.3 as published by the Free Software
** Foundation and appearing in the file included in the packaging of
** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\page qtautomotive-byos.html
\title Building Your Own NVIDIA DRIVE CX Image
\previouspage qtautomotive-tutorial-deploying.html
\nextpage qtas-licenses.html
\QAS is built on top of the \l{About Boot to Qt}{Boot to Qt} software stack
for embedded Linux systems. Boot to Qt for embedded Linux is built using the
tools and resources from the \l{Yocto Project}, and is based on Yocto's reference
distribution. You can use the same tools to build custom Boot to Qt images,
and have control over which packages are included in the build and how the
software stack is configured.
To build your own NVIDIA DRIVE CX image, follow the steps in this topic.
For more information about building the Boot to Qt image, see
\l{Building Your Own Embedded Linux Image}.
\note Building your own NVIDIA DRIVE CX image is supported only in Linux.
\section1 Requirements
You should be familiar with the Yocto tools and the concept of
\e {recipes}. For more information, see
\l{Yocto Project Documentation for the Latest Release}.
Your \QAS installation must include Yocto meta layer components. To install
those, select \uicontrol {Qt Automotive Suite}
> \uicontrol {Qt for Automotive Software Stack} > \uicontrol {Components}
> \uicontrol {Yocto meta layer} in the Qt online installation wizard.
\image qtas-yocto.png
After a successful installation, you will find the Yocto meta layer under the path
<Qt installation directory>/<Qt version>/Automotive/sources/meta-boot2qt.
Install dependencies for the Yocto tools. In Ubuntu, the following
packages are required:
\badcode
sudo apt-get install gawk curl git-core diffstat unzip p7zip-full texinfo \
gcc-multilib build-essential chrpath libsdl1.2-dev xterm gperf bison \
g++-multilib
\endcode
Download NVIDIA DRIVE CX Platform Development Kit (PDK) from the NVIDIA site.
In order to get access to PDK, you need a valid NVIDIA license.
For more information, see \l{NVIDIA DRIVE™ CX}. The required PDK version is 4.1.4.0.
\section1 Setting Up Build Environment
Set up the NVIDIA DRIVE CX build environment:
\list 1
\li Extract the following packages from NVIDIA DRIVE CX PDK:
\badcode
vibrante-t186ref-foundation-4.1.4.0-8512955.pdk.7z
vibrante-t186ref-linux-4.1.4.0-8512955-pdk.7z
\endcode
\li For installing the documentation, run the following command in a terminal:
\badcode
vibrante-t186ref-foundation-4.1.4.0-8512955-RUN-THIS-FIRST-install-docs.run
\endcode
After running the command, the NVIDIA DRIVE CX documentation should
be started automatically.
\li In the NVIDIA DRIVE CX documentation, open the topic
\uicontrol {System Programming} > \uicontrol {Building the Yocto Project Based Components}
and extract all defined prerequisite packages.
\li Extract the following package:
\badcode
<PDK installation directory>/vibrante-t186ref-linux-4.1.4.0-8512955-pdk/vibrante-t186ref-linux_src/yocto/nvidia-layer.tgz
\endcode
\li Create a new directory for building the image. In our example,
we use the directory name \e{builddir}.
\li Run the following commands in a terminal:
\badcode
cd builddir
<Qt Automotive Suite installation directory>/<Qt version>/Automotive/sources/meta-boot2qt/b2qt-init-build-env init --device tegra-t18x
\endcode
After running the commands, you should have:
\list
\li A directory \e{sources} generated under \e{builddir}.
\li A shell script \e{setup-environment.sh} generated under \e{builddir}.
\endlist
\li Create the following symbolic links:
\endlist
\table
\header
\li A symbolic link name
\li A source folder path
\li A destination folder path
\row
\li nvidia-layer
\li <PDK installation directory>/vibrante-t186ref-linux-4.1.4.0-8512955-pdk/vibrante-t186ref-linux_src/yocto/layers
\li builddir/sources/meta-boot2qt/sources
\row
\li vibrante-t186
\li <PDK installation directory>/vibrante-t186ref-linux-4.1.4.0-8512955-pdk
\li builddir/sources/meta-boot2qt/sources
\endtable
\e{builddir} is the directory that you created for building the image.
\section1 Configuring Build Environment
Configure the build environment for NVIDIA DRIVE CX by running the
following commands in a terminal:
\badcode
cd builddir
export MACHINE=tegra-t18x
source ./setup-environment.sh
\endcode
\e{builddir} is the directory you created for building the image.
After running \e{setup-environment.sh}, your current directory in a terminal
is \e{builddir/build-tegra-t18x}. There you can build an image and/or
a toolchain for NVIDIA DRIVE CX. The toolchain can be used with Qt Creator
for building Qt applications.
\section1 Building Image
Build the NVIDIA DRIVE CX image by running the following commands in a terminal:
\badcode
cd builddir/build-tegra-t18x
bitbake b2qt-automotive-qt5-image
\endcode
You will find the built image file \e{b2qt-automotive-qt5-image-tegra-t18x.7z}
under the path builddir/tmp/deploy/images/tegra-t18x.
\section1 Building Toolchain
Build the NVIDIA DRIVE CX toolchain by running the following commands in a terminal:
\badcode
cd builddir/build-tegra-t18x
bitbake meta-toolchain-b2qt-automotive-qt5-sdk
\endcode
After building the toolchain, you will find the shell script
\e{b2qt-x86-64-meta-toolchain-b2qt-automotive-qt5-sdk-tegra-t18x.sh}
under the path builddir/tmp/deploy/sdk/. Install the toolchain by running
the shell script.
\section1 Using Toolchain
After installing the toolchain, you can use it with or without Qt Creator.
If you are using the toolchain with Qt Creator, you need to configure
Qt Creator for the toolchain. See \l{Configuring Qt Creator}.
If you are using the toolchain without Qt Creator,
see \l{Using Toolchain without Qt Creator}.
*/
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