ALSA: hda - Check CORB overflow

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Add an overflow check of CORB in HD-audio controller and codec drivers
so that flood of sequential writes would work properly.
In the controller side, add a check of CORB read-pointer to make
returning -EAGAIN when it's full.  Meanwhile in the codec side, when
-EAGAIN error is received, it retries the write after flushing the
pending verbs (calling get_response() essentially does it).

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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This commit is contained in:

Takashi Iwai 2012-12-20 11:17:17 +01:00

parent aa88a3553e

commit 3bcce5c0d9

2 changed files with 17 additions and 4 deletions

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10

sound/pci/hda/hda_codec.c

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11

sound/pci/hda/hda_intel.c

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