OBEX integration in 0xdroid

[Jim Huang]

Hello Erin and list,

As expected, 0xdroid[1] is the effort from 0xlab[2] to aggregate the
open source resources into several hardware platforms like
Beagleboard.
While OBEX[3] is a communications protocol that facilitates the
exchange of binary objects between devices. We would like to see OBEX
support in Android to improve the usability of handheld devices, so
Erin started a new project, android-obex[4], to extend Android-based
devices to leverage OBEX-FTP or some functionality around OBEX.
Please check Erin's tutorials for details:
http://i-miss-erin.blogspot.com/2009/07/how-to-build-obex-in-android.html
http://i-miss-erin.blogspot.com/2009/06/obex-introduction.html

Eventually, OBEX will be merged into 0xdroid, and there is known to be
an implementation provided by Code Aurora Forum:
https://www.codeaurora.org/wiki/QAEP_Patch_Releases

PATCH_M7201JSDBALYM6380_1179_Bluetooth_OPP_FTP_20090702.tar.gz July
3, 2009 Updated FTP/OPP BT profiles.

It seems that OBEX/FTP is implemented in Code Aurora tree, but it
doesn't appear in official Android tree (korg). Erin, could you take
a look
over the detailed implementation about the above? And, it is nice if
Erin could clarify the development plans about android-obex and think
of the possibility to reuse the existing software (such as Java FTP UI
frontend implemented in
PATCH_M7201JSDBALYM6380_1179_Bluetooth_OPP_FTP_20090702.tar.gz package).

I am glad to see that the famous CyanogenMod (CM) ROM image[5]
includes Erin's work as well. :)

Thanks,
Jim Huang (jserv)
http://0xlab.org/

[1] http://gitorious.org/0xdroid
[2] http://0xlab.org/
[3] http://en.wikipedia.org/wiki/OBject_EXchange
[4] http://gitorious.org/android-obex
[5] http://forum.xda-developers.com/showthread.php?t=537204

[Erin Yueh]

Hi,

On Thu, Sep 3, 2009 at 14:19, Jim Huang<js...@0xlab.org> wrote:
> Hello Erin and list,
>
> As expected, 0xdroid[1] is the effort from 0xlab[2] to aggregate the
> open source resources into several hardware platforms like
> Beagleboard.

[...]

>
> Eventually, OBEX will be merged into 0xdroid, and there is known to be
> an implementation provided by Code Aurora Forum:
>    https://www.codeaurora.org/wiki/QAEP_Patch_Releases
>
> PATCH_M7201JSDBALYM6380_1179_Bluetooth_OPP_FTP_20090702.tar.gz   July
> 3, 2009          Updated FTP/OPP BT profiles.
>
> It seems that OBEX/FTP is implemented in Code Aurora tree, but it
> doesn't appear in official Android tree (korg).  Erin, could you take
> a look
> over the detailed implementation about the above?  And, it is nice if
> Erin could clarify the development plans about android-obex and think
> of the possibility to reuse the existing software (such as Java FTP UI
> frontend implemented in
> PATCH_M7201JSDBALYM6380_1179_Bluetooth_OPP_FTP_20090702.tar.gz package).
>

OK! I will check this BIG patch and it seems like they implemented
bluetooth UI application. I will try to make it work in G1 first.

> I am glad to see that the famous CyanogenMod (CM) ROM image[5]
> includes Erin's work as well. :)
>

yup! thanks! I am very happy to see someone use my work.

Regards,
Erin Yueh
http://0xlab.org

[Erin Yueh]

Hi,

On Thu, Sep 3, 2009 at 14:19, Jim Huang <js...@0xlab.org> wrote:

[...]

> Eventually, OBEX will be merged into 0xdroid, and there is known to be
> an implementation provided by Code Aurora Forum:
>    https://www.codeaurora.org/wiki/QAEP_Patch_Releases
>
> PATCH_M7201JSDBALYM6380_1179_Bluetooth_OPP_FTP_20090702.tar.gz   July
> 3, 2009          Updated FTP/OPP BT profiles.
>
> It seems that OBEX/FTP is implemented in Code Aurora tree, but it
> doesn't appear in official Android tree (korg).  Erin, could you take
> a look
> over the detailed implementation about the above?  And, it is nice if
> Erin could clarify the development plans about android-obex and think
> of the possibility to reuse the existing software (such as Java FTP UI
> frontend implemented in
> PATCH_M7201JSDBALYM6380_1179_Bluetooth_OPP_FTP_20090702.tar.gz package).
>

I am stuck now. I built a donut based image with this patch. Bluetooth
is working normally, but OBEX is not working from Bluetooth UI
application. I found it would start a dbus_bt service from a shell
script, but I cannot find this file from aurora git server at all. I
just sent an email to aurora forum, since I found the email address
from its git log. Hope I can get the response soon, then continue my
work...

Cheers,
Erin Yueh
http://0xlab.org

[perelet]

Jim, Erin.

That patch is experimental Obex API's implementation on Android
(Donut). It has Java/JNI support for OPP and FTP client and server
profiles and UI to send/receive Pics/Sounds/Contacts from
corresponding Android applications and also browse generic files on
sdcard. UI/Java runs at top of early obexd-0.?9? like interfaces (see
http://www.bluez.org/page/4/) refered as dbus_bt . Obexd is part NOT
of that source tree - get it from BlueZ site.

Patch that you're looking at is maybe not easiest way to look at
source. You better off picking up things from gits (see bellow). I
do not see big of deal making it run on G1, but I never done that.

You need to get obexd in to Android build system. When doing that
you'll face few glib functions/#defines missing here and there - you
may add missing pieces to bluez/eglib placeholder in Android tree.
Also, you may have to deal with couple of SDP functions - that's cause
Donut is using BlueZ 3.x. When Google will move on BlueZ 4.x things
should be easier.

Here's brief overview of related Git url's (takes time to load). I
suggest selective picking file by file.Good luck. Drop me your patches
if you make it work.

frameworks/base: https://www.codeaurora.org/gitweb/quic/la/?p=platform/frameworks/base.git;a=shortlog;h=refs/heads/donut

- Java APIs, Java services, JNI

- This is the meat of the non-application bits (calls
OpenOBEX APIs via D-Bus)



packages/apps/Bluetooth:
https://www.codeaurora.org/gitweb/quic/la/?p=platform/packages/apps/Bluetooth.git;a=shortlog;h=donut

- Common Bluetooth GUI code (rx object processing, BT device
browser)

- FTP GUI



packages/apps/Camera:
https://www.codeaurora.org/gitweb/quic/la/?p=platform/packages/apps/Camera.git;a=shortlog;h=refs/heads/donut

- Some changes to allow Camera to send images via OPP



packages/apps/Contacts:
https://www.codeaurora.org/gitweb/quic/la/?p=platform/packages/apps/Contacts.git;a=shortlog;h=refs/heads/donut

- Changes to Contacts (phonebook) to send contacts via OPP

- Hook to pull vcards via OPP

packages/apps/Music:
https://www.codeaurora.org/gitweb/quic/la/?p=platform/packages/apps/Music.git;a=shortlog;h=refs/heads/donut

- Changes to Music to send media via OPP

Oleg Perelet. Qualcomm Innovation Center, Inc

[Erin Yueh]

Hi Oleg,

Thanks a lot for clarifying OBEX problems!

On Thu, Sep 24, 2009 at 23:51, perelet <oper...@quicinc.com> wrote:
>
> Jim, Erin.
>
> That patch is experimental Obex API's implementation on Android
> (Donut). It has Java/JNI support for OPP and FTP client and server
> profiles and UI to send/receive Pics/Sounds/Contacts from
> corresponding Android applications and also browse generic files on
> sdcard. UI/Java runs at top of early obexd-0.?9? like interfaces (see
> http://www.bluez.org/page/4/) refered as dbus_bt . Obexd is part NOT
> of that source tree - get it from BlueZ site.
>

Cool! I will check it out!

> Patch that you're looking at is maybe not easiest way to look at
> source. You better off picking up things from gits (see bellow).   I
> do not see big of deal making it run on G1, but I never done that.
>
> You need to get obexd in to Android build system. When doing that
> you'll face few glib functions/#defines missing here and there - you
> may add missing pieces to bluez/eglib placeholder in Android tree.
> Also, you may have to deal with couple of SDP functions - that's cause
> Donut is using BlueZ 3.x. When Google will move on BlueZ 4.x things
> should be easier.
>
> Here's brief overview of related Git url's (takes time to load). I
> suggest selective picking file by file.Good luck. Drop me your patches
> if you make it work.
>

mmh... I merged the code from different project repository, not from
that giant patch. I will let you know if i make it work in G1.

Best Regards,
Erin Yueh
http://0xlab.org

[Erin Yueh]

Hi,

Finally, I make aurora Bluetooth UI application work in Android Dev
phone. Now, it can use Bluetooth OPP and FTP profile. I am going to
merge the code to 0xdroid beagle-donut branch soon.

I ported obexd in Android and also made few patches for Bluetooth
OPP/FTP profile based on donut_glazed tree in aurora. Below it's a
list for this feature:

(1) frameworks patch (based on aurora /frameworks/base repository)
http://androidobex.googlecode.com/files/0001-apply-Bluetooth-FTP-OPP-patch-from-aurora.patch

(2) Blueooth UI application patch (based on aurora
/package/apps/Bluetooth repository)
http://androidobex.googlecode.com/files/0001-Modify-OBEX-received-file-path-to-sdcard-and-set-de.patch

(3) init.rc script patch (based on android /system/core repository)
http://androidobex.googlecode.com/files/0001-Add-obexd-and-obex-client-service.patch

(4) bluedroid patch (based on android /system/bluetooth repository)
http://androidobex.googlecode.com/files/0001-add-obexd-obex-client-service-start-and-stop.patch

(5) obexd (i use obexd-0.10 version)
http://gitorious.org/android-obex/obexd

(6) glib (i use glib-2.13.0 version)
http://gitorious.org/android-obex/glib

(7) bluez patch ( patch from aurora /external/bluez repository)
https://www.codeaurora.org/gitweb/quic/la/?p=platform/external/bluez.git;a=commit;h=c2fdca9be6ac9625c229728d83c9ca3b26b64bba

(8) openobex (i use openobex version 1.5 )
http://gitorious.org/android-obex/openobex

[Jim Huang]

2009/10/23 Erin Yueh <erin...@gmail.com>:

> Finally, I make aurora Bluetooth UI application work in Android Dev
> phone. Now, it can use Bluetooth OPP and FTP profile. I am going to
> merge the code to 0xdroid beagle-donut branch soon.
>

Great! Look forward to future work.

So, does Android UI work right now?

> I ported obexd in Android and also made few patches for Bluetooth
> OPP/FTP profile based on donut_glazed tree in aurora. Below it's a
> list for this feature:

[...]

> (5) obexd (i use obexd-0.10 version)
> http://gitorious.org/android-obex/obexd
> (6) glib (i use glib-2.13.0 version)
> http://gitorious.org/android-obex/glib
>

I just wonder the exact size inflation while linked to (static) glib.
Maybe we could take the routines directly from
glib source instead if there are few dependencies.

cheers,

[Erin Yueh]

On Mon, Oct 26, 2009 at 12:07, Jim Huang <js...@0xlab.org> wrote:
>
> 2009/10/23 Erin Yueh <erin...@gmail.com>:
>> Finally, I make aurora Bluetooth UI application work in Android Dev
>> phone. Now, it can use Bluetooth OPP and FTP profile. I am going to
>> merge the code to 0xdroid beagle-donut branch soon.
>>
>
> Great!  Look forward to future work.
>
> So, does Android UI work right now?
>

yes, we can use bluetooth UI application normally.

>> I ported obexd in Android and also made few patches for Bluetooth
>> OPP/FTP profile based on donut_glazed tree in aurora. Below it's a
>> list for this feature:
> [...]
>> (5) obexd (i use obexd-0.10 version)
>> http://gitorious.org/android-obex/obexd
>> (6) glib (i use glib-2.13.0 version)
>> http://gitorious.org/android-obex/glib
>>
>
> I just wonder the exact size inflation while linked to (static) glib.
> Maybe we could take the routines directly from
> glib source instead if there are few dependencies.
>

mmh...obexd is about 375.8 kb and obex-client is about 356.1 kb.