From: Jarkko Nikula <jhnikula@gmail.com>
To: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"tony@atomide.com" <tony@atomide.com>,
"broonie@opensource.wolfsonmicro.com"
<broonie@opensource.wolfsonmicro.com>,
"Valentin Eduardo (Nokia-D/Helsinki)"
<eduardo.valentin@nokia.com>,
"Nurkkala Eero.An (EXT-Offcode/Oulu)"
<ext-Eero.Nurkkala@nokia.com>,
"Koskinen Ilkka (Nokia-D/Tampere)" <ilkka.koskinen@nokia.com>
Subject: Re: [PATCHv4 0/2] McBSP: OMAP3: Add sidetone feature
Date: Fri, 19 Feb 2010 15:39:16 +0200 [thread overview]
Message-ID: <20100219153916.a3dc4a77.jhnikula@gmail.com> (raw)
In-Reply-To: <201002191034.32391.peter.ujfalusi@nokia.com>
On Fri, 19 Feb 2010 10:34:32 +0200
Peter Ujfalusi <peter.ujfalusi@nokia.com> wrote:
> I'm not sure, but you might need to configure the taps as well to have the
> correct sidetone.
> Also I have a recollection, that the McBSP sidetone requires DSP mode (TDM) in
> order to operate correctly, so on Beagle you might need to set up 4 channel
> mode. And how the channel mapping in 4 channel mode works in McBSP sidetone is
> another matter...
>
It seems to work with I2S too.
I think I forgot to enable control 'McBSP2 Sidetone' when I last time
tried this set (v1 or v2). But now my null test below works and I can
hear that the level is changing when I adjust the volumes with amixer.
echo 32767 >/sys/devices/platform/omap-mcbsp.2/st_taps
arecord -f dat >/dev/null |aplay -f dat /dev/zero
amixer set -D hw:0 'McBSP2 Sidetone Channel 0' 32700
amixer set -D hw:0 'McBSP2 Sidetone Channel 0' 327
amixer set -D hw:0 'McBSP2 Sidetone Channel 0' -- -32700
--
Jarkko
next prev parent reply other threads:[~2010-02-19 13:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-18 18:42 [PATCHv4 0/2] McBSP: OMAP3: Add sidetone feature Ilkka Koskinen
2010-02-18 18:42 ` [PATCHv4 1/2] " Ilkka Koskinen
2010-02-18 18:42 ` [PATCHv4 2/2] ASoC: OMAP-McBSP: ASoC interface for McBSP sidetone Ilkka Koskinen
2010-02-19 7:30 ` ext-Eero.Nurkkala
2010-02-19 12:04 ` Ilkka Koskinen
2010-02-19 12:57 ` ext-Eero.Nurkkala
2010-02-19 15:12 ` ilkka.koskinen
2010-02-19 19:03 ` ext-Eero.Nurkkala
2010-02-22 11:11 ` ilkka.koskinen
2010-02-18 20:22 ` [PATCHv4 0/2] McBSP: OMAP3: Add sidetone feature Jarkko Nikula
2010-02-19 8:34 ` Peter Ujfalusi
2010-02-19 13:39 ` Jarkko Nikula [this message]
2010-02-19 13:37 ` Eero Nurkkala
2010-02-19 13:54 ` Jarkko Nikula
2010-02-19 10:05 ` Ilkka Koskinen
2010-02-19 13:45 ` Jarkko Nikula
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