Understanding Linux Based Mobile Platform

Understanding Linux based mobile platform

Nov.26, 2008 KIPA Seminar

[email protected] Mobile Solutions Architect Wind River Systems

• Why Linux? • Architectures • A few components • Issues and Opportunities

Proprietary Open Source Platform Benefits Benefits •IP protection/control •Ability to Customize •Compatibility between apps •Business model flexibility •Compatibility w. Desktop •No Vendor Lock-in •Broad external developer •Broad external developer community (many 100K) community (many 100K)

Considerations Considerations •Customization •GPL issues •Footprint, performance •Availability of in-house open •Vendor Lock In source expertise •BOM Impact •Over-customization •It is not open source •Fragmentation

Realization of Unsustainable Linux Experiments Solution Creation thru Requirements Community and Individual Widespread Companies Adoption

Digital TV / Setop Box

Mobile

Automotive

• Vendor Lock-in • Choice is fragmented - • Architected, • Cost optimization • Hard to Innovate Wild West structured • Revenue maximization • Expensive Development • Some innovation, still • Common OS – Linux • Innovation and • Long Dev. Cycle costly • Common Middleware differentiation • Lack of Standards • Few middleware or HW – CGL • Some Differentiation at standards • Common HW all levels –> outside core • Differentiation outside Standard – ATCA competency core competency • Differentiation in core competencies © 2008 Wind River Systems, Inc. 361 • Linux Distributions 1444 • Linux Distribution Variants

One Common Mobile Handset Distribution?

mobile

• Why Linux? • Architectures • A few components • Issues and Opportunities

The Moblin.org Open Source Project, Dr. Derek S. Speed, Open Source Technology Center, Intel

• Why Linux? • Architectures • A few components • Issues and Opportunities

• GNOME, Maemo, ALP, Openmoko, LiMo, etc • Free software with LGPL • Many Applications • Very active development (2.14.4 on 10 Oct. 2008) • GtkFB: GTK+2.0 for Linux Frame Buffer – 2MB disk (stripped, shared GtkFB library)

http://www.limofoundation.org/api/R1/aui/gtk/fnd/index.html

• Royalty-free, cross-platform API for full-function 2D and 3D graphics on embedded system • 3D API for Symbian, Android, iPhone, etc • Stripped down version of OpenGL – Standard specification for cross-language, cross-platform API for 2D & 3D graphics – About 150 commands specifying objects and operations

• Java Platform, Micro Edition (aka J2ME) – JRE 1.3 only (vs. JRE 1.5 or 1.6) – CLDC (Connected Limited Device Configuration) • Defines most basic set of libraries and virtual-machine features – MIDP (Mobile Information Device Profile) • LCD oriented GUI API • MIDP 2.0 includes basic gaming API • Google Dalvik – Register based virtual machine – Optimized for low memory requirement – Multiple VMs running together (needs OS support) • Moblin – Java SE or Java ME?

• Webkit – Apple Safari – Google Chrome • Gecko – Mozilla (Fennec, Firefox) • Proprietary – Opera – Netfront – POLARIS

• Web content engine • Open source • Compatibility • Standards compliance • Stability • Performance • Security • Portability • Usability • Hackability

http://webkit.org/projects/goals.html

http://oe.linuxtogo.org/~zecke/elce2007/ELCE2007_WebKit.pdf

• Why Linux? • Architectures • A few components • Issues and Opportunities

Handset Software Commercialization Semiconductor Operator Makers Companies Companies Companies

Wind River can enhance and extend your capability

Concept Product Development Product

People Process Technology

People Process Technology •Training •Product Life Cycle •Wind River Platforms •DSO Experts •Software Development •Ecosystem Partnerships •Field Engineers •Hardware Development •COTS HW •911 Consultants •Cost Management •Middleware •Senior Level •Quality Management •Drivers •Project Managers •Resource Management •Board Support Packages •Program Managers •Risk Management •Domain Experts •Procurement/Sourcing •Wind River IP •Specialized Support •Custom IP •Product Engineering •Performance Analysis

Open Source License Linux Kernel GPL System C Library BSD DBUS GPL2 OpenBinder (Core) GPL2 YAFFS2 GPL SQLite GPL2 Webkit BSD (including LGPL) Webcore LGPL SDL LGPL SGL Google (Skia) OpenGL SGI OpenGL (BSD/MPL)

http://wiki.kldp.org/wiki.php/AndroidPortingOnRealTarget/ko

Historically, testing hasn't gotten much respect in the world of software development. As the old saying goes, "It compiles! Ship it!" Only a joke — but like most jokes, it hides a grain of truth.

http://www.experexchange.com/list3.asp?class_id=202&sort_id=a08

• Adobe • RIL • Media Player (Codecs) • Active X • Bluetooth • OMA-DM • Input Method • Etc