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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox