ALSA: fireworks/firewire-lib: Add a quirk to reset data block counter at bus reset

Fireworks has a quirk to reset data block counter at bus reset.

This commit adds a flag of CIP_SKIP_DBC_ZERO_CHECK. This flag has an effect
to skip checking dbc continuity when dbc is zero.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/firewire/fireworks/fireworks_stream.c b/sound/firewire/fireworks/fireworks_stream.c
index c75c2ef2ae31..3a3f203177b1 100644
--- a/sound/firewire/fireworks/fireworks_stream.c
+++ b/sound/firewire/fireworks/fireworks_stream.c
@@ -198,6 +198,8 @@ int snd_efw_stream_init_duplex(struct snd_efw *efw)
         efw->tx_stream.flags |= CIP_EMPTY_WITH_TAG0;
         /* Fireworks has its own meaning for dbc. */
         efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT;
+        /* Fireworks reset dbc at bus reset. */
+        efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK;
         /* AudioFire9 always reports wrong dbs. */
         if (efw->is_af9)
                 efw->tx_stream.flags |= CIP_WRONG_DBS;