Marcin Juszkiewicz

Tomorrow I will go to England — this time for OpenedHand Xmas party which will take place somewhere near London.

This time I plan trip with more attention to details. First connections from Luton airport -> Bromley. It will probably be bus to Victoria Station, then train to Bromley South and finally walk. Return one from Bromley to Stansted airport will be two trains + walk (Cannon Street Station -> Liverpool Station) + train to airport.

As I had no time to buy London city map I will take Nokia 770 tablet with Maemo mapper and set of downloaded maps so I should not have problems like I had in Birmingham during GUADEC.

Finally I booted ARMv6 rootfs in QEmu (used 2007-11-21 CVS one). All changes will be available in Poky in next few days.

OpenedHand Linux (Poky) 3.0+snapshot-20071206 qemuarm ttyAMA0

qemuarm login: root

root@qemuarm:~# uname -a
Linux qemuarm 2.6.23 #11 Fri Dec 7 19:59:57 CET 2007 armv6l unknown unknown GNU/Linux
root@qemuarm:~# cat /proc/cpuinfo
Processor       : ARMv6-compatible processor rev 3 (v6l)
BogoMIPS        : 524.28
Features        : swp half thumb fastmult vfp edsp java
CPU implementer : 0x41
CPU architecture: 6TEJ
CPU variant     : 0x1
CPU part        : 0xb36
CPU revision    : 3
Cache type      : write-through
Cache clean     : not required
Cache lockdown  : not supported
Cache format    : Harvard
I size          : 4096
I assoc         : 4
I line length   : 32
I sets          : 32
D size          : 65536
D assoc         : 4
D line length   : 32
D sets          : 512

Hardware        : ARM-Versatile PB
Revision        : 0000
Serial          : 0000000000000000

During last days I spent time on adding ARMv6 related stuff into Poky.

First problem was lack of ARMv6 support in QEmu which we use to generate binary locales (you need at least 128M of RAM to get localedef working on device). All information which I found in net was info from Paul Brook that he has ARMv6/v7 emulation working but can not release it due to license of ARM documentation.

But finally he got signed permission to show code to the world and QEmu got ARMv6/v7 support. Refreshing all our patches took some time for me and Richard ‘RP’ Purdie but finally we got it working. Binary locales for ARMv4t and ARMv5te worked but not for ARMv6 ;( The solution was quite simple — adding “—cpu arm1136” into qemu-arm invocation. As a result I added new variable into “bitbake.conf” — QEMU_OPTIONS which set proper “—cpu” value.

So now, when we have binary locales working for all our devices the next change was possibility to generate only UTF-8 locales (does someone use other ones?). Change was quite simple and that is how “LOCALE_UTF8_ONLY” variable was born.

Now I have other thing to solve — get “qemuarm” (our ARM emulation machine) working with ARMv6 rootfs (I have to test it on something — all my ARM devices are ARMv4/v4t or v5te only). There is “RealView” emulation in QEmu which handle it but it lack many features so I have to rather try to get “VersatilePB” working with ARMv6. I just hope that messing with Linux kernel sources will not be too hard to get it working…

During night some selected people got link to page on one of OpenMoko servers. After accepting EULA they got gllin package.

What is in package? Gllin binary itself, starter script and set of libraries from OM2007.1 release (OABI). They used “—library-path” option of dynamic linker to use old libraries on OM2007.2 system:

lib/ld-linux.so.2 --library-path /home/root/gllin/lib:/home/root/gllin/usr/lib /home/root/gllin/gllin.real -low 5
lib/ld-linux.so.2 --library-path /home/root/gllin/lib:/home/root/gllin/usr/lib /home/root/gllin/gllin.real -periodic 1

What I do not like is location where those files are stored - $HOME should not be touched by packages… But they will probably change it later.

Now who first will share informations how good it works for him/her?

I do not know how it is in other mobile phones but there is one annoying thing in my Sony Ericsson k750i phone. It is how it handle audio…

As phone has FM radio integrated I use it very often. When I go somewhere I usually plug headset (which was provided with phone) and turn on radio. The problem is when someone calls me… The phone starts ringing but it does not use headset for output :( Yes — ring tone is played on internal loudspeaker instead of headset. Good part is that radio playing is interrupted so I have occasion to hear ring and press headset button to receive call. Bad part is that radio is interrupted from time to time sometimes even without calls so it is hard to find out sometimes is it radio problem or incoming call.

If there will be a day that I will switch to Neo1973 (and I hope that it will be GTA02 version) then at least that problem will be solved. Or it will be solvable due to openness of platform.

54

Yesterday I had occasion to play with HTC Touch Dual smartphone. Nice phone, comfortable formfactor, a bit crappy keypad. No WiFi or GPS but HSDPA/UMTS/EDGE present so it can be used for browsing net.

And it has nice ringtones :) I grabbed few of them to use with my SE k750i phone but they were in WMA format and my phone handle only MIDI or MP3 ringtones. So converting is required…

How to convert WMA to MP3 then? There are many ways.

First method require use of Mplayer and Lame:

mplayer -ao pcm:waveheader ringtone.wma
lame -h audiodump.wav -o ringtone.mp3

Second way require GStreamer and lame plugin:

gst-launch filesrc location=ringtone.wma ! decodebin ! lame ! filesink location=ringtone.mp3

As a result I got ringtones in format accepted by my phone.

Thanks to work done by Dmitry Baryshkov we have 2.6.23 kernel working properly on Zaurus SL-6000 (Tosa). Ångström images are already present so users can test how does it works for them.

Today I reflashed Tosa with fresh build and did some testing. We still have problem with framebuffer (famous yellow lines) but otherwise it looks quite good. USB host is working very nice — I connected few devices:

root@tosa:~$ lsusb
Bus 1 Device 9: ID 1457:5122
Bus 1 Device 8: ID 046d:c70a Logitech, Inc.
Bus 1 Device 7: ID 046d:c70e Logitech, Inc.
Bus 1 Device 6: ID 046d:0b02 Logitech, Inc.
Bus 1 Device 5: ID 0a46:9601 Davicom Semiconductor, Inc.
Bus 1 Device 4: ID 05e3:0606 Genesys Logic, Inc.
Bus 1 Device 2: ID 0bb2:0302 Ambit Microsystems Corp.
Bus 1 Device 1: ID 0000:0000

Detailed checking as to wait until I charge this device to 100% because now it shutdown after few minutes.