[ALSA] hda_intel: fix unexpected ring buffer positions

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I found two issues with ICH7-M (it should be related to other HDA chipsets
as well):

- the ring buffer position is not reset when stream restarts (after xrun) -
  solved by moving azx_stream_reset() call from open() to prepare() callback
  and reset posbuf to zero (it might be filled with hw later than position()
  callback is called)
- irq_ignore flag should be set also when ring buffer memory area is not
  changed in prepare() callback - this patch replaces irq_ignore with
  more universal check based on jiffies clock

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

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This commit is contained in:

Jaroslav Kysela 2009-04-10 12:20:45 +02:00

parent 577c9c456f

commit fa00e046b4

1 changed files with 25 additions and 14 deletions

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39

sound/pci/hda/hda_intel.c

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