linux/sound/core/oss
Jaroslav Kysela e763692578 ALSA: pcm_lib - return back hw_ptr_interrupt
Clemens Ladisch noted for hw_ptr_removal in "cleanup & merge hw_ptr
update functions" commit:

"It is possible for the status/delay ioctls to be called when the sound
card's pointer register alreay shows a position at the beginning of the
new period, but immediately before the interrupt is actually executed.
(This happens regularly on a SMP machine with mplayer.)  When that
happens, the code thinks that the position must be at least one period
ahead of the current position and drops an entire buffer of data."

Return back the hw_ptr_interrupt variable. The last interrupt pointer
is always computed from the latest hw_ptr instead of tracking it
separately (in this case all hw_ptr checks and modifications might
influence also hw_ptr_interrupt and it is difficult to keep it
consistent).

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2010-01-26 17:50:50 +01:00
..
copy.c ALSA: Kill snd_assert() in sound/core/* 2008-08-13 11:46:35 +02:00
io.c ALSA: Kill snd_assert() in sound/core/* 2008-08-13 11:46:35 +02:00
linear.c ALSA: Kill snd_assert() in sound/core/* 2008-08-13 11:46:35 +02:00
Makefile [ALSA] Changed Jaroslav Kysela's e-mail from perex@suse.cz to perex@perex.cz 2007-10-16 16:51:18 +02:00
mixer_oss.c ALSA: rename "PC Speaker" controls to "Speaker" 2009-11-05 09:00:21 +01:00
mulaw.c ALSA: Kill snd_assert() in sound/core/* 2008-08-13 11:46:35 +02:00
pcm_oss.c ALSA: pcm_lib - return back hw_ptr_interrupt 2010-01-26 17:50:50 +01:00
pcm_plugin.c ALSA: Kill snd_assert() in sound/core/* 2008-08-13 11:46:35 +02:00
pcm_plugin.h ALSA: Add missing KERN_* prefix to printk in sound/core 2009-02-05 16:00:49 +01:00
rate.c ALSA: fix excessive background noise introduced by OSS emulation rate shrink 2009-02-23 07:49:04 +01:00
route.c ALSA: Kill snd_assert() in sound/core/* 2008-08-13 11:46:35 +02:00