ALSA: fireworks/firewire-lib: Add a quirk for wrong dbs in tx packets

One of Fireworks firmware, named  as 'AudioFire9', seems to transmit
packets with wrong value of dbs. It's always 0x11 but actual size of
data block is different.

This commit adds a flag for this quirk and some codes to calculate
correct size.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 1ca1a193bbc0..f334ae51e44f 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -21,6 +21,8 @@
  * @CIP_EMPTY_WITH_TAG0: Only for in-stream. Empty in-packets have TAG0.
  * @CIP_DBC_IS_END_EVENT: Only for in-stream. The value of dbc in an in-packet
  *      corresponds to the end of event in the packet. Out of IEC 61883.
+ * @CIP_WRONG_DBS: Only for in-stream. The value of dbs is wrong in in-packets.
+ *      The value of data_block_quadlets is used instead of reported value.
  */
 enum cip_flags {
         CIP_NONBLOCKING         = 0x00,
@@ -28,6 +30,7 @@ enum cip_flags {
         CIP_SYNC_TO_DEVICE      = 0x02,
         CIP_EMPTY_WITH_TAG0     = 0x04,
         CIP_DBC_IS_END_EVENT    = 0x08,
+        CIP_WRONG_DBS           = 0x10,
 };
 
 /**