From: Sven Zeisberg <sven.zeisberg@googlemail.com>
To: alsa-devel@alsa-project.org
Subject: How to transfer more than 2 channels between i.MX25 & AD1938 using SSI?
Date: Thu, 26 Aug 2010 17:30:18 +0200 [thread overview]
Message-ID: <4C76888A.50409@googlemail.com> (raw)
Hi,
has anybody succeeded to transfer more than 2 audio channels between
i.MX25 and a CODEC throught the i.MX25 SSI Port?
We have succeeded to set the CODEC (AD1938) as Master to the required
mode (TDM with 8 Timeslots and 32 Bit per Timeslot). However, as soon as
we start to play a wav file with aplay, we can see on the logic analyzer
that the data format on the SSI lines is reset to a stereo mode (2
channels with frame sync changing level between channels).
In the imx-ssi driver, I can see that .channel_max = 2 - therefore my
question: does this driver support more than two channels at all?
BR
Sven
next reply other threads:[~2010-08-26 15:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-26 15:30 Sven Zeisberg [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-08-25 14:39 How to transfer more than 2 channels between i.MX25 & AD1938 using SSI? Sven Zeisberg
2010-08-27 11:45 ` Sascha Hauer
2010-08-30 6:30 ` Sven Zeisberg
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