Takashi Iwai [Mon, 21 Nov 2005 10:47:42 +0000 (10:47 +0000)]
abort snd_pcm_dmix_drain when state is SND_PCM_STATE_XRU
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.
Takashi Iwai [Thu, 17 Nov 2005 12:08:32 +0000 (12:08 +0000)]
Fix generation of IEC958 subframes
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.
Clemens Ladisch [Mon, 17 Oct 2005 16:10:16 +0000 (16:10 +0000)]
file plugin: fix various bugs
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.
Mikael Magnusson [Tue, 13 Sep 2005 10:36:16 +0000 (10:36 +0000)]
emu10k1: Front channels via fxbus 8 and 9
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>
Jaroslav Kysela [Thu, 8 Sep 2005 06:48:30 +0000 (06:48 +0000)]
direct plugins - change group according ipc_gid for the socket file
This patch fixes problem when ipc_perm are 0660 and you want to share dmix
with more users in the specified group.
Fixed the bug producing silent tones with some combinations of plugins.
The internal buffer handling is now better (cleaner) integrated with
snd_pcm_generic_*().
Jaroslav Kysela [Wed, 24 Aug 2005 10:41:16 +0000 (10:41 +0000)]
mixer API - extend simple enumerated controls for direction tests
Added snd_mixer_selem_is_enum_playback() and
snd_mixer_selem_is_enum_capture() functions.
Jaroslav Kysela [Mon, 22 Aug 2005 12:07:55 +0000 (12:07 +0000)]
moved simple mixer abstraction modules to modules/mixer/simple directory
Compile dynamic modules outside the alsa-lib tree to allow linking them
against libasound.so - proper versions of dynamic symbols.
Jaroslav Kysela [Thu, 18 Aug 2005 10:42:22 +0000 (10:42 +0000)]
PCM direct plugins - handle EINTR in the resource server
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).
Jaroslav Kysela [Tue, 16 Aug 2005 12:19:15 +0000 (12:19 +0000)]
direct plugins (dmix) - suspend/resume fixes
- this patch adds support for suspend & result for dmix and other
direct plugins
- the timer detection / initialization (TREAD support) was redesigned and
the check for proper driver version was moved to the timer_hw.c
attached is an updated ICE1724.conf - I have added channels X parameters to
the .pcm.surroundXX-fields, because otherwise it's for example not possible
to play a 5.1-stream on surround51 and a stereo-stream on side simultaneous.
I need this feature to do multiroom-sound through one single sound-card (one
room playing a DVD with 5.1, another room playing some MP3s through channels
7 and 8).
I hope you could follow my explanations and will add this to the tree.
Jaroslav Kysela [Sun, 31 Jul 2005 09:08:43 +0000 (09:08 +0000)]
The simple mixer abstraction - more work
- separated the "base library" from ac97.c (dynamically loaded)
- added necessary handling of all private structures
- added selector and sid registration functions and handling code
- added basic code for hda.c (yeah, my notebook has this hw)
Takashi Iwai [Tue, 28 Jun 2005 13:35:22 +0000 (13:35 +0000)]
Fix compilation on a system with old alsa-lib headers
Fixed the compilation on a system with old alsa-lib headers.
A symlink alsa is created here to include all alsa-lib headers
locally even via #include <alsa/xxx.h>
Jaroslav Kysela [Thu, 16 Jun 2005 11:59:26 +0000 (11:59 +0000)]
more simple mixer - basic abstraction - work
- midlayer cleanups and simplification
- probably broke the "none" abstraction code somehow (not intensively tested
midlayer changes)
- trying to implement ac97 module
- far from finished
- common code should be moved to alsa-lib as core for other modules
- perhaps simple_abst.c can be based on this common code, too
Jaroslav Kysela [Fri, 3 Jun 2005 13:33:04 +0000 (13:33 +0000)]
big simple mixer update
- exported all necessary functions to create a mixer module outside alsa-lib
- separated simple mixer API from the simple mixer implementation
(using callbacks as usuall)
- src/mixer/simple.c is the core
- src/mixer/simple_none.c is the current (no-abstraction) implementation
based on control names; note that this module does not depend on
internal ALSA structures now
- src/mixer/simple_abst.c is the ongoing abstraction which will use
external dynamic modules; src/conf/smixer.conf will describe which
modules will be used depending on the components from the driver
Takashi Iwai [Mon, 30 May 2005 17:56:12 +0000 (17:56 +0000)]
Fix bugs in the last change of ipc_gid option
- Fix semaphore gid control
- Do semaphore discard for all semaphores (although currently defined as 1)
- Fix the wrong check of return value from shmctl