/*!
\contentspage index.html
\if defined(qcmanual)
\previouspage creator-project-generic.html
\else
\previouspage creator-developing-symbian.html
\endif
\page creator-developing-maemo.html
\if defined(qcmanual)
\nextpage creator-developing-symbian.html
\else
\nextpage smartinstaller.html
\endif
\title Setting Up Development Environment for Maemo
Maemo is a software platform developed by Nokia for smartphones and
Internet Tablets. The Maemo SDK provides an open development environment
for different applications on top of the Maemo platform. The necessary
tools from the Maemo SDK are also included in the Nokia Qt SDK.
The whole tool chain that you need to create, build, debug, run, and deploy
Maemo applictions is installed and configured when you install the Nokia
Qt SDK.
\if defined(qcmanual)
Maemo 5 is based on the Linux 2.6 operating system. For more
information about the Maemo platform, see
\l{http://maemo.org/intro/platform/}{Software Platform} on the Maemo web site.
\endif
For more information about developing applications for the Maemo 5
platform, select \gui {Help > Index} and look for \gui {Platform Notes},
or see
\l{http://doc.qt.nokia.com/qt-maemo-4.6/platform-notes.html}{Platform Notes - Maemo 5}.
\section1 Hardware and Software Requirements
To build and run Qt applications for Maemo, you need the following:
\list
\o Nokia N900 device with software update release 1.2 (V10.2010.19-1)
or later installed.
\if defined(qcmanual)
\o MADDE cross-platform Maemo development
tool (installed as part of the Nokia Qt SDK).
For more information about MADDE pertaining to its
installation, configuration, and deployment on the device, see
\l{http://wiki.maemo.org/MADDE}{Introduction to MADDE}.
\endif
\o Nokia USB drivers.
Only needed if you develop on Windows and if you use a USB connection
to run applications on the device. The drivers are
installed as part of the Nokia Qt SDK. You can also download them from
\l{https://garage.maemo.org/frs/?group_id=801&release_id=2655}{PC Connectivity}
on the Maemo web site. Download and install the latest
PC_Connectivity_.exe (at the time of writing,
PC_Connectivity_0.9.4.exe).
\endlist
The Qt Creator/MADDE integration is supported on the following platforms:
\list
\o Linux (32 bit and 64 bit)
\o Windows (32 bit and 64 bit)
\omit \o Mac OS 10.5 Leopard, or higher \endomit
\endlist
\note The only supported build system for Maemo in Qt
Creator is qmake.
\section1 Setting Up the Nokia N900
You can connect your device to your development PC using either a USB or
WLAN connection.
For the device, you need to use a tool called Mad Developer to create the
device-side end point for USB and WLAN connections. It provides no
diagnostics functions but is essential for creating connections between the
device and your development PC.
To use a WLAN connection, you must activate WLAN on the device and connect
it to the same WLAN as the development PC. The network address is displayed
in the Mad Developer.
To use an USB connection, you need to set up the Nokia N900 as a network device
on the development PC.
\note If you plan to connect your development PC to the Nokia N900 only over WLAN, you can
ignore the USB-specific parts in the following sections.
\section2 Installing and Configuring Mad Developer
Install Mad Developer on a device and configure
a connection between the development PC and the device.
To install and configure Mad Developer:
\list 1
\o On the Nokia N900, select \gui{Download} > \gui{Development} > \gui{mad-developer}
to install the Mad Developer software package.
\o Click \gui {Mad Developer} to start the Mad Developer application.
\o To use a WLAN connection, activate WLAN on the device and connect
to the same network as the development PC. You can see the network
address in the \gui wlan0 field.
\o To use an USB connection:
\list a
\o If you are using Microsoft Windows as development host, you must
change the driver loaded for instantiating the connection.
In the Mad Developer, select \gui{Manage USB} and select \gui{Load g_ether}.
\o To set up the USB settings, click \gui Edit on the \gui usb0 row and
confirm by clicking \gui Configure.
\note By default, you do not need to make changes. The \gui usb0 row
displays the IP address 192.168.2.15.
\endlist
\o Select \gui{Developer Password} to generate a password for a freshly
created user called \bold developer. The password stays valid for as long
as the password generation dialog is open. You enter the password when
you configure the connection in Qt Creator.
\image qtcreator-mad-developer-screenshot.png
\endlist
\section1 Installing Qt Mobility APIs
To develop applications that use the Qt Mobility APIs, you must install the
APIs on the devices. The APIs are not available in the Nokia N900 package
manager, and therefore, you must install them from the command line as the
root user. To become the root user you must first install \c rootsh from the
application manager.
\list 1
\o On the device, install \c rootsh from the \gui {Application Manager}.
\o In \gui Programs, select \c {X Terminal} to open a terminal window.
\o To switch to the root user, enter the following command:
\c{sudo gainroot}
\o To install Qt Mobility libraries, enter the following command:
\c{apt-get install libqtm-*}
\o To confirm the installation, enter: \c Y
\o Close the terminal.
\endlist
\section1 Setting Up Network Connectivity on Development PC
Use the network configuration tools on your platform to specify the
connection to the device on the development PC. You need to do this
only if you use an USB connection.
\section2 Linux
The device uses the IP address 192.168.2.15 with the subnet 255.255.255.0
for its USB connection by default, so you can create the network interface
with a different address inside the same subnet too.
\note If you have changed the IP address of the device when configuring
Mad Developer, you need to reflect those changes in your development PC USB
network settings.
Run the following command in a shell as root user:
\c{ifconfig usb0 192.168.2.14 up}
\section2 Windows
When you connect the device to your Windows PC, Windows tries to install a
driver for the Linux USB Ethernet connection. In the
\gui{Found New Hardware Wizard}, select \gui{No, not this time} in the
first dialog and \gui{Install the software automatically} in the second
dialog.
To specify a network connection:
\list 1
\o Open the Network Connections window.
\o Select the Linux USB Ethernet
connection that is displayed as a new Local Area Connection.
\o Edit the \gui {Internet Protocol Version 4 (TCP/IPv4)} properties
to specify the IP address for the connection.
In the \gui {Use the following IP address} field, enter the following values:
\list
\o \gui {IP Address}: \bold {192.168.2.14}
\o \gui SubnetMask: \bold {255.255.255.0}
\o \gui {Default gateway}: leave this field empty
\endlist
\endlist
Depending on
your version of Microsoft Windows you may have to unplug and re-plug the
Nokia N900 to reload the driver with its configuration accordingly.
\if defined(qcmanual)
\section1 Setting Up MADDE
If you install Nokia Qt SDK, the MADDE package is installed and
configured automatically on your development PC and you can omit this task.
\list 1
\o Download the MADDE installer file for your platform from the
\l{http://wiki.maemo.org/MADDE}{MADDE} site.
\o Execute the installer and follow the instructions.
\o To see which targets are available, run \c{mad-admin list targets}.
\o To install the target that starts with the string \bold fremantle, use the command:
\c{mad-admin create fremantle-qt-xxx}
\o In Qt Creator, register the MADDE tool chain:
\image qtcreator-screenshot-toolchain.png
\list a
\o Select \gui Tools > \gui Options... > \gui Qt4 > \gui{Qt Versions}.
\o Click \inlineimage qtcreator-windows-add.png,
to add a new Qt version.
The \gui{qmake Location} is the qmake
executable in \c{/targets//bin}.
\endlist
\endlist
When you have installed the target, you have a toolchain and a sysroot
environment for cross-compiling.
\endif
\section1 Configuring Connections in Qt Creator
To be able to run and debug applications on the Maemo emulator and
devices, you must set up a connection to the emulator and the device in the
Qt Creator build and run settings.
\if defined(qcmanual)
If you install Nokia Qt SDK, the
necessary software is installed and configured automatically and you
only need to configure a connection to the device.
By default, you create the connection as the \e developer user. This
protects real user data on the device from getting corrupted during
testing. If you write applications that use Mobility APIs, you might want
to test them with real user data. To create a connection as a user, specify
the \gui Username and \gui Password in Qt Creator. For more information, see
\l{Testing with User Data}.
\endif
You can protect the connections between Qt Creator and the Maemo emulator
or a device by using either a password or an SSH key. You must always
use a password for the initial connection, but can then deploy an SSH
key and use it for subsequent connections. If you use a password, you
must generate it in Mad Developer and enter it in Qt Creator every time
you connect to the Maemo emulator or to a device.
If you do not have an SSH key, you can create it in Qt Creator.
Encrypted keys are not supported. For more
information, see
\if defined(qcmanual)
\l{Generating SSH Keys}.
\else
the Qt Creator Manual.
\endif
\if defined(qcmanual)
To configure connections between Qt Creator and the Maemo emulator or
device:
\list 1
\o If you install the Maemo emulator (QEMU) separately, you must
specify parameters to access it:
\list a
\o Start Mad Developer in the emulator.
\o Click \gui {Developer Password} to generate a password for
the connection.
\o In Qt Creator, select \gui {Tools > Options... > Projects >
Maemo Device Configurations > Add} to add a new configuration.
\image qtcreator-maemo-emulator-connection.png
\o In the \gui {Configuration name} field, enter a name for
the connection.
\o In the \gui {Device type} field, select \gui {Maemo emulator}.
\o In the \gui {Authentication type} field, select \gui Password
for the initial connection.
\o In the \gui Password field, enter the password from the Mad
Developer for the initial connection.
You can use the default values for the other fields.
\o Click \gui Test to test the connection.
\o To avoid having to specify the password every time you connect
to the Maemo emulator, click \gui {Deploy Key...} and select
the file that contains your public key.
\o When you have deployed the key to the device, change the
configuration to use the SSH key for protection.
\image qtcreator-maemo-emulator-connection-key.png
The default location of the private key file is displayed in the
\gui {Private key file} field.
\endlist
If you installed the Nokia Qt SDK, a connection has been configured
and you only need to specify the password and deploy the SSH key.
\o To deploy applications and run them remotely, specify parameters
for accessing devices:
\list a
\o Connect your device to the development PC via an USB cable or
a WLAN. For an USB connection, you are prompted to select the mode
to use. Choose \gui{PC suite mode}.
\note If you experience connection problems due to a USB port issue,
switch to a different port or use WLAN to connect to the device.
\o Select \gui Tools > \gui Options... > \gui Projects >
\gui{Maemo Device Configurations > Add}, and add a new configuration for a
\gui {Remote device}.
\image qtcreator-screenshot-devconf.png
\o In the \gui {Host name} field, enter the IP address from the
\gui usb0 or \gui wlan0 field in Mad Developer.
\o Specify the other settings in the same way as for a Maemo emulator
connection.
\o Click \gui Test to test the connection.
\o Click \gui OK to close the dialog.
\endlist
\o To specify build and run settings:
\list a
\o Open a project for an application you want to develop for your
Nokia N900.
\o Click \gui Projects to open the projects mode.
\o In the \gui{Build Settings} section, choose the MADDE Qt version.
\image qtcreator-screenshot-build-settings.png
\o In the \gui{Run Settings} section, click \gui Add to add a new
run configuration.
\o Set a name and select the device configuration.
\image qtcreator-screenshot-run-settings.png
\note You can either add separate run settings for both the Maemo
emulator connection and the device connection or select the
\gui {Device configuration} before you run the application.
\endlist
\endlist
\else
The Nokia Qt SDK installation program configured a default connection
to the Maemo emulator. You only need to specify the
password and deploy the SSH key.
\list 1
\o To specify authentication for the connection to the Maemo emulator:
\list a
\o Start Mad Developer in the emulator.
\o Click \gui {Developer Password} to generate a password for
the connection.
\o In Qt Creator, select \gui {Tools > Options... > Projects >
Maemo Device Configurations > Maemo emulator} to specify the
password.
\image qtcreator-maemo-emulator-connection.png
\o In the \gui {Authentication type} field, select \gui Password
for the initial connection.
\o In the \gui Password field, enter the password from the Mad
Developer for the initial connection.
You can use the default values for the other fields.
\o Click \gui Test to test the connection.
\o To avoid having to specify the password every time you connect
to the Maemo emulator, click \gui {Deploy Key...} and select
the file that contains your public key.
\o When you have deployed the key to the device, change the
configuration to use the SSH key for protection.
\image qtcreator-maemo-emulator-connection-key.png
The default location of the private key file is displayed in the
\gui {Private key file} field.
\endlist
\o To deploy applications and run them remotely, specify parameters
for accessing devices:
\list a
\o Connect your device to the development PC via an USB cable or
a WLAN. For an USB connection, you are prompted to select the mode
to use. Choose \gui{PC suite mode}.
\note If you experience connection problems due to a USB port issue,
switch to a different port or use WLAN to connect to the device.
\o Select \gui Tools > \gui Options... > \gui Projects >
\gui{Maemo Device Configurations > Add}, and add a new configuration for a
\gui {Remote device}.
\image qtcreator-screenshot-devconf.png
\o In the \gui {Host name} field, enter the IP address from the
\gui usb0 or \gui wlan0 field in Mad Developer.
\o Specify the other settings in the same way as for a Maemo emulator
connection.
\o Click \gui Test to test the connection.
\o Click \gui OK to close the dialog.
\endlist
\o To specify build and run settings:
\list a
\o Open a project for an application you want to develop for your
Nokia N900.
\o Click \gui Projects to open the projects mode.
\o In the \gui{Build Settings} section, choose the MADDE Qt version
that was registered by the installation program.
\image qtcreator-screenshot-build-settings.png
\o In the \gui{Run Settings} section, click \gui Add to add a new
run configuration.
\o Set a name and select the device configuration.
\image qtcreator-screenshot-run-settings.png
\note You can either add separate run settings for both the Maemo
emulator connection and the device connection or select the
\gui {Device configuration} before you run the application.
\o Click the \gui Run button to build and run the application.
\endlist
\endlist
\endif
\if defined(qcmanual)
\section2 Testing with User Data
To run your application as the default user, you must first assign a password
for the user account and then create the connection to the device as the
user:
\list 1
\o On the device, in \gui Programs, select \c {X Terminal} to open a
terminal window.
\o To switch to the root user, enter the following command:
\c{sudo gainroot}
\o To specify the password, enter the following command:
\c {passwd user}
\o In Qt Creator, Select \gui Tools > \gui Options... > \gui Projects >
\gui{Maemo Device Configurations}.
\o Specify the username \c user and the password in the device configuration.
\endlist
\section2 Generating SSH Keys
If you do not have an SSH public and private key pair, you can generate it
in Qt Creator. You can specify key length and the key algorithm, RSA or DSA.
If you only use the keys to protect connections to the Maemo emulator or
device, you can use the default values.
\list 1
\o Select \gui {Tools > Options... > Projects > Maemo Device Configurations
> Generate SSH Key...}.
\o Click \gui {Generate SSH Key}.
\image qtcreator-ssh-key-configuration.png "SSH Key Configuration dialog"
\o Click \gui {Save Public Key...} to select the location to save the
public key.
\o Click \gui {Save Private Key...} to specify the location to save the
private key.
\o Click \gui Close to close the dialog.
\endlist
\endif
\section1 Troubleshooting
The addresses used in this example might be reserved by some other application
in your network. If you cannot establish a connection, try the following optional
configurations:
\table
\header
\o usb0 in Mad Developer on Device
\o USB Network on Development PC
\o Host Name in Qt Creator Build Settings
\row
\o 172.30.7.15 255.255.255.0
\o 172.30.7.14 255.255.255.0
\o 172.30.7.15
\row
\o 10.133.133.15
\o 10.133.133.14
\o 10.133.133.15
\row
\o 192.168.133.15
\o 192.168.133.14
\o 192.168.133.15
\note You cannot use the value localhost for connections to a device.
\endtable
\note VPN connections might block the device connection.
*/