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SubjectRe: call/normal switch was Re: omap4-droid4: voice call support was
* Pavel Machek <pavel@ucw.cz> [180331 19:21]:
> On Sat 2018-03-31 11:19:35, Tony Lindgren wrote:
> > * Pavel Machek <pavel@ucw.cz> [180331 14:56]:
> > > Hi!
> > >
> > > > Hmm well I got audio call hacked to work as a proof of concept hack,
> > > > see below. Maybe it can be used to verify some of the assumptions
> > > > above.
> > > >
> > > > Then.. To split the work a bit, can you guys maybe try to decode
> > > > the cpcap register values and try to do a proper ASoC driver patch?
> > >
> > > This is not proper patch yet, but it should be a step in that
> > > direction...
> >
> > Cool :) Microphone still does not work for me.. I tried tweaking
> > the alsamixer settings but no mic. This is with cold boot with
> > droid4-kexecboot if that might make a difference, we may have
> > some register uninitialized somewhere. Any ideas?
>
> Ok, I was focusing on the speaker side.
>
> alsamixer, tab to go to capture settings, set it to 37 37 Mic2 Mic1
> should work, according to my notes, but not recently tested and not
> tested against real human.

In alsamixer after setting the second "Speaker" to "Voice" and "Mode"
to "Call" and "Left" to "Mic 2" and "Right" to "Mic 1" and doing a
test call the mic does not work, speaker works though.

After the call in alsamixer, setting the second "Speaker" to "HiFi",
and "Mode" to "Normal" mode, I can record a wav file and play it back
just fine. But this only works for me after reloading snd-soc-cpcap.ko
after the voice call.

> I'll attempt to test it, but something in my userland shuts down
> system just after boot 60% of time, which is rather annoying.

Hmm battery voltage too low? We have cpcap_battery_irq_thread()
call orderly_poweroff() on lowbpl interrupt.

> > FYI, I got one of the remaining n_gsm issues tracked down yesterday,
> > at least one more bug to go. Things only work with n_gsm debug
> > enabled right now for some reason..
>
> I don't know why I need n_gsm, but I have my fingers crossed. :-).

More features it seems :) But sounds like you're all set for now
with USB access.

Regards,

Tony



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