From: Sascha Sommer <saschasommer@freenet.de>
this is a fix for bug 0001559.
Unlike my first guesses the real problem is not in the kernel driver but in
alsa-lib. Whenever the current dmix status is xrun and snd_pcm_dmix_drain
gets called the process will hang forever in the poll function. The reason is
that poll gets called even though the timer already stopped.
As described in the bugtracking system this bug was not noticable with alsa
versions that used the old IOCTLS because the SNDRV_TIMER_IOCTL_STOP ioctl
never reached the timer kernel module.
Attached patch fixes this problem for alsa-lib 1.0.10 by simply calling
snd_pcm_dmix_drop when snd_pcm_dmix_drain gets called in the state
SND_PCM_STATE_XRUN.
From: Nicolas Boullis <nboullis@debian.org>
While working on an ALSA driver for the audio part of em8300-based MPEG
decoder boards (Sigma Designs' Hollywood+ boards and Creative Labs' DXR3
boards), I think I discovered a bug in the code that generates IEC958
subframes from linear samples (iec958 plugin): M and W preambles are
swapped, and B preambles should only be used on even subframes. The
attached patch fixes this issue.
Initialize wbuf_used_bytes, adjust appl_ptr in the rewind and forward
callbacks, and adjust the offset when a data block straddles the
boundary of the wbuf buffer.
New 'pcm_args_by_class' @func available for using in configuration files.
Returns card, device args list formatted as "CARD=N,DEV=M" by specified
pcm class and index.
Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
Routes front channels via fxbus 8 and 9 instead of fxbus 0 and 1. This
makes the front and default devices independent of each other, and
"Wave Surround", "Wave Center" and "Wave LFE" don't have to be muted
during 5.1 playback.
Signed-off-by: Mikael Magnusson <mikma@users.sourceforge.net>
This defines two modem related pcm devices: "phoneline" is driver's pcm
reference, with "modem" the line will be "Hook-Off"ed automatically.
Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
- Fix surround40 channel numbers
- Fix rear/center_lfe channel assignment
This configuration is based on the channel order on Revo 7.1,
Front/CLFE/Surr/Side
If the other ice1724-based boards have a different order, we need
to rename the driver's id to distinguish the difference.
Fixed the bug producing silent tones with some combinations of plugins.
The internal buffer handling is now better (cleaner) integrated with
snd_pcm_generic_*().
The poll() call in the resource server for PCM direct plugins might be
interrupted with an signal. Handle the case gracefuly and don't exit
the server (which brings another problems - cannot connect to socket -
later).
