From: Lee Revell <rlrevell@joe-job.com>
To: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Cc: alsa-devel <alsa-devel@lists.sourceforge.net>
Subject: Re: PCM driver only plays tiny portion of clip
Date: Fri, 03 Mar 2006 03:45:43 -0500 [thread overview]
Message-ID: <1141375544.3042.103.camel@mindpipe> (raw)
In-Reply-To: <1141373843.9229.4.camel@localhost.localdomain>
On Fri, 2006-03-03 at 08:17 +0000, Adrian McMenamin wrote:
> I need a thread because the SH DMAC routine that does the DMA handling
> is not atomic and therefore cannot be started from the trigger
> callback.
> The idea is that the interrupt handler reschedules the worker thread
> which is sleeping in an endless loop... something is very wrong with
> it
> all at the moment though as it causes kernel panics
Actually this raises an interesting question - if the hardware has no
real DMA and must rely on the copy/silence callbacks to transfer the
data, what should be done in the trigger callback when the PCM is
started?
Lee
-------------------------------------------------------
This SF.Net email is sponsored by xPML, a groundbreaking scripting language
that extends applications into web and mobile media. Attend the live webcast
and join the prime developer group breaking into this new coding territory!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
next prev parent reply other threads:[~2006-03-03 8:45 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-27 16:07 PCM driver only plays tiny portion of clip Adrian McMenamin
2006-02-27 17:26 ` Clemens Ladisch
2006-02-27 17:35 ` Adrian McMenamin
2006-02-28 7:30 ` Clemens Ladisch
2006-02-28 9:10 ` Adrian McMenamin
2006-02-28 14:55 ` Clemens Ladisch
2006-02-28 15:14 ` Adrian McMenamin
2006-02-28 17:08 ` Clemens Ladisch
2006-02-28 17:36 ` Adrian McMenamin
2006-03-01 19:10 ` Adrian McMenamin
2006-03-01 19:31 ` Lee Revell
2006-03-01 19:40 ` Adrian McMenamin
2006-03-01 19:59 ` Lee Revell
2006-03-01 20:20 ` Adrian McMenamin
2006-03-01 20:31 ` Lee Revell
2006-03-01 20:28 ` Adrian McMenamin
2006-03-01 20:41 ` Lee Revell
2006-03-02 20:49 ` Adrian McMenamin
2006-03-03 7:27 ` Clemens Ladisch
2006-03-03 7:42 ` Adrian McMenamin
2006-03-03 8:12 ` Lee Revell
[not found] ` <1141373843.9229.4.camel@localhost.localdomain>
2006-03-03 8:45 ` Lee Revell [this message]
2006-03-03 8:18 ` Lee Revell
2006-03-03 8:36 ` Lee Revell
2006-03-01 19:45 ` Adrian McMenamin
2006-02-27 23:08 ` Adrian McMenamin
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=1141375544.3042.103.camel@mindpipe \
--to=rlrevell@joe-job.com \
--cc=adrian@mcmen.demon.co.uk \
--cc=alsa-devel@lists.sourceforge.net \
/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.