ALSA: hda: track CIRB/CORB command/response states for each codec

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Recently we hit a bug in our dev board, whose HDMI codec#3 may emit
redundant/spurious responses, which were then taken as responses to
command for another onboard Realtek codec#2, and mess up both codecs.

Extend the azx_rb.cmds and azx_rb.res to array and track each codec's
commands/responses separately. This helps keep good codec safe from
broken ones.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Wu Fengguang 2009-08-01 18:45:16 +08:00 • committed by Takashi Iwai

parent ce577e8cf5

commit deadff1665

3 changed files with 56 additions and 24 deletions

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2

sound/pci/hda/hda_codec.c

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2

sound/pci/hda/hda_codec.h

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76

sound/pci/hda/hda_intel.c

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