From: James Courtier-Dutton <james.dutton@gmail.com>
To: anish.singh@samsung.com
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
jassi brar <jassisinghbrar@gmail.com>,
"JaroslavKyselaperex@perex.cz" <JaroslavKyselaperex@perex.cz>,
ben-linux@fluff.org
Subject: Re: DMA interrupt not getting triggered(nailed the problem need solution)
Date: Mon, 8 Feb 2010 16:06:51 +0000 [thread overview]
Message-ID: <ad2655cb1002080806q46eb8828w597112556a4474ef@mail.gmail.com> (raw)
In-Reply-To: <15824817.821301265596468706.JavaMail.weblogic@epml09>
On 8 February 2010 02:34, ANISH KUMAR <anish.singh@samsung.com> wrote:
>
> Hi All,
>
> This problem is due to ETIMEDOUT(timeout) happening in s3c_snd_lrsync function(called by trigger).
> As i understand this could be due I2S being broken. This basically happens because
> of improper initialization of CPU or CODEC.
>
> But if that is the case then it would not have produced sound initially also but that
> is not the case(initially it is ringing i.e. interrupt coming for a short time then after i am getting time out problem)??
> After this sound is not coming this happens when it does the initialisation again using open,
> prepare,enqueue and so on.
>
> Please provide any pointers which can help me out.
>
Check the master/slave mode at each end of the CPU to CODEC link.
If both are master or both are slave you could see issues similar to
what you are seeing.
next prev parent reply other threads:[~2010-02-08 16:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-08 2:34 DMA interrupt not getting triggered(nailed the problem need solution) ANISH KUMAR
2010-02-08 11:05 ` Mark Brown
2010-02-08 16:06 ` James Courtier-Dutton [this message]
-- strict thread matches above, loose matches on Subject: below --
2010-02-08 11:17 ANISH KUMAR
2010-02-08 11:27 ` Mark Brown
2010-02-08 12:15 ANISH KUMAR
2010-02-08 14:42 ` Mark Brown
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