Route&Mix audio for calls

[tsadigov]

I am tryinh to turn an ARM board into AOSP Android Phone
I succeded using GSM module and initiate calls/SMS.
But I could not make audio to work with calls.

I had achieved that in ubuntu based system on the same hardware. GSM modem is recognized as USB headphone/mic. And I ran script to read from builting mic and write to GSM/usb heaphone and read from GSM/mic write to builtin headphone.

I am trying to understand how Androids Audio subsystem is set up.
At the moment the main suspects I will investigate are
- Dialer apps source code or other classes under telephony.
- frameworks/av/services/audiopolivy/config/*

 

[Oswald Boelcke]

I am tryinh to turn an ARM board into AOSP Android Phone
I succeded using GSM module and initiate calls/SMS.
But I could not make audio to work with calls.

I had achieved that in ubuntu based system on the same hardware. GSM modem is recognized as USB headphone/mic. And I ran script to read from builting mic and write to GSM/usb heaphone and read from GSM/mic write to builtin headphone.

I am trying to understand how Androids Audio subsystem is set up.
At the moment the main suspects I will investigate are
- Dialer apps source code or other classes under telephony.
- frameworks/av/services/audiopolivy/config/*

Hello and good afternoon, @tsadigov

Welcome to XDA! I hope you'll always get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like

Note: Questions go in Q&A Forum

If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...

forum.xda-developers.com

and the others. I've moved your thread to Android Q&A.

Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator

 

[tsadigov]

It does not look bright