On Sun, 22 Feb 2009 17:43:20 +0300
Paul Fertser <fercer...@gmail.com> wrote:
> > With SCORouting=PCM I did get static and some sought of noise once
> > the control connection was established...
>
> Probably you'd get sound if you routed any source inside WM8753 to the
> bluetooth DAI.
>
> [...] Please see the new routing diagrams of the wiki, they make
> routing and DAI modes more clear.
I'm trying to follow these diagrams - I assume you mean the diagrams
under "ALSA Channels" on the wiki page [1]? For GSM<->BT, DAI mode 0
should be used, which I guess corresponds to this switch in the alsa
state file:
control.50 {
comment.access 'read write'
comment.type ENUMERATED
comment.count 1
comment.item.0 'DAI 0'
comment.item.1 'DAI 1'
comment.item.2 'DAI 2'
comment.item.3 'DAI 3'
iface MIXER
name 'DAI Mode'
value 'DAI 0'
}
Since the mic on the bluetooth headset works, I presume that the basic
setup should be OK, but that the controls are somehow wrong. The
configuration file I use is [2], which the author states has worked
before two-way. I've tried to follow the diagrams, and to me it seems
like the setup shown in the diagram under "Using Bluetooth headset with
GSM" should be valid. As far as I can tell, the state file also sets
this up (knobs 54,57,58,64,65,62).
Could the "Digital filters" block can be setup wrong and effectively
mute outgoing sound?
// Simon
[1]
http://wiki.openmoko.org/wiki/Neo1973_Audio_Subsystem#using_Bluetooth_headset_with_GSM
[2] http://www.robsims.com/GSMBLUETOOTH.txt
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