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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4C76888A.50409@googlemail.com \
--to=sven.zeisberg@googlemail.com \
--cc=alsa-devel@alsa-project.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.