linux/sound/ppc
T. H. Huth e70515dd51 [ALSA] snd-powermac: handle dead DMA transfers
This patch provides the snd-powermac sound driver with the ability to handle
dead DMA transfers. If a dead DMA transfer is detected, the driver now sets
up a new DMA transfer to continue with the sound output at the point where the
old transfer died.
This dead DMA transfer handling has become necessary with recent kernels on
certain G4 PowerMacs. Please refer to the following URLs for more information:
 https://bugtrack.alsa-project.org/alsa-bug/view.php?id=3126
 https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.20/+bug/87652
 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=436723
The patch is based on the dead DMA transfer handling code from the old dmasound
driver which can be found in the file sound/oss/dmasound/dmasound_awacs.c in
the Linux source code.

Signed-off-by: T. H. Huth <th.huth@googlemail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-01-31 17:30:01 +01:00
..
awacs.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
awacs.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
beep.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
burgundy.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
burgundy.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
daca.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
Kconfig [ALSA] Add PS3 sound driver 2007-07-20 11:11:40 +02:00
keywest.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
Makefile [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-16 16:51:18 +02:00
pmac.c [ALSA] snd-powermac: handle dead DMA transfers 2008-01-31 17:30:01 +01:00
pmac.h [ALSA] Clean up with common snd_ctl_boolean_*_info callbacks 2007-10-16 15:57:45 +02:00
powermac.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
snd_ps3.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
snd_ps3.h [ALSA] Add PS3 sound driver 2007-07-20 11:11:40 +02:00
snd_ps3_reg.h [ALSA] Add PS3 sound driver 2007-07-20 11:11:40 +02:00
tumbler.c [ALSA] Remove sound/driver.h 2008-01-31 17:29:48 +01:00
tumbler_volume.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00