ipod remote control port - accessory protocol - status, how to fix

[cacona666]

Hi,

I've seen remote control and accessory protocol changes have been committed to SVN.
I've compiled this version and it does not work with a remote control (in the remote control port) with my Ipod Photo (4G Color). Should it work?

I would like to know what can I do to make it work or test it.
I've made some changes to the sources to log some information but the Ipod does not seem to be receiving anything. Can it be a problem with the serial port configuration particular to the 4G Color?

I'm new to rockbox development. I've found almost no documentation about the PP5020 CPU. I've browsed the sources and found these are important:
* iap.c, and serial.c: for serial communication. Here, the serial port is configured, and managed.
* button.c: logic for button configuration and handling
* Other important sources for ipods and the model in particular: keymap-ipod.c, button-clickwheel.c, action.c, button-target.h, config-ipodcolor.h, misc.c, settings.c.

Can anyone give me some tip on where to start with the test of serial port with 4G Photo? Which should be the more similar model regarding remote control port?

Thanks,
Caco

[rpress]

4G support never worked, only 5/5.5G work.  To make it work, you need to figure out how to use the serial port on a 4G, and add that support to serial.c.

[cacona666]

Ok, thank you.
Is that possible without an oscilloscope and with the few documentation available?
Where should I start?

Regards,
Juan Carlos

[rpress]

Ok, thank you.
Is that possible without an oscilloscope and with the few documentation available?
Where should I start?

Regards,
Juan Carlos

I spent all day and got it working.  My girlfriend has a 4G Color and I commandeered it. 

http://www.rockbox.org/tracker/task/9920

[cacona666]

Good boy!
I'll try it and tell you.

Thanks!

[soap]

You chose your girlfriend well.   

[rpress]

So, how did it work?

If you are having problems compiling, here is my compiled copy for 4G Color:
http://drop.io/tbpd8js

[joust]

4G support never worked, only 5/5.5G work.  To make it work, you need to figure out how to use the serial port on a 4G, and add that support to serial.c.

should this work? I have a 60gig 5.5 (that I have a 80gig drive in) and it doesn't work with the latest build as of today.
I have one of those portable jukebox docks with a remote. The ipod would play, pause and stop with the remote but not with todays version of rockbox.

[evilny0]

I thought the AAP was working on 4G colors already, and that only 4G greyscale were not. However, if both are working - which I'll test tomorrow - this is very good news. I reverted to the original firmware to be able to listen to my ipod on my car headunit, but I had to convert my flac files to mp3.

Do you think it may work ?

[Chronon]

There's a chance, if the only thing that held up the 4g from working previously was serial port stuff and it's common to both models.  Let us know the result of the test. 

[evilny0]

I did a quick test with a wireless remote, the IAP packet is displayed in the debug menu i/o ports. I'll test with the headunit when I leave the office, but it looks promising ! .

I don't know how you figured it out, but you made a real good job. Thanks !

Edit after testing on the headunit:

It currently does not work. I'll implement tomorrow the missing functions from the protocol and test it again.

[evilny0]

I added a log function, logging all ingoing and outgoing IAP packets. You can find it in the following FS : http://www.rockbox.org/tracker/task/9951.

It could help finding problems.

[cacona666]

Hi.
Any news about this? I tried and couldn't make it work.

Regards,
caco

[Creposucre]

FS10623 improves detection of ipod accessories ans adds support of some remote buttons.

You may want to have a look at it.

Please report any problem or result (positive  )

Thanks