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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2024-02-18 08:41:27 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-02-19 09:24:35 +0100 |
| commit | 4a486439d2ca85752c46711f373b6ddc107bb35d (patch) | |
| tree | 72f527625d7ab1371cc035401fc2df4100d5df33 /sound/firewire/amdtp-stream.h | |
| parent | ALSA: oxfw: support the case that AV/C Stream Format Information command is n... (diff) | |
| download | linux-4a486439d2ca85752c46711f373b6ddc107bb35d.tar.xz linux-4a486439d2ca85752c46711f373b6ddc107bb35d.zip | |
ALSA: firewire-lib: handle quirk to calculate payload quadlets as data block counter
Miglia Harmony Audio (OXFW970) has a quirk to put the number of
accumulated quadlets in CIP payload into the dbc field of CIP header.
This commit handles the quirk in the packet processing layer.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20240218074128.95210-4-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/amdtp-stream.h')
| -rw-r--r-- | sound/firewire/amdtp-stream.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h index b7ff44751ab9..a1ed2e80f91a 100644 --- a/sound/firewire/amdtp-stream.h +++ b/sound/firewire/amdtp-stream.h @@ -37,6 +37,9 @@ * the value of current SYT_INTERVAL; e.g. initial value is not zero. * @CIP_UNAWARE_SYT: For outgoing packet, the value in SYT field of CIP is 0xffff. * For incoming packet, the value in SYT field of CIP is not handled. + * @CIP_DBC_IS_PAYLOAD_QUADLETS: Available for incoming packet, and only effective with + * CIP_DBC_IS_END_EVENT flag. The value of dbc field is the number of accumulated quadlets + * in CIP payload, instead of the number of accumulated data blocks. */ enum cip_flags { CIP_NONBLOCKING = 0x00, @@ -51,6 +54,7 @@ enum cip_flags { CIP_NO_HEADER = 0x100, CIP_UNALIGHED_DBC = 0x200, CIP_UNAWARE_SYT = 0x400, + CIP_DBC_IS_PAYLOAD_QUADLETS = 0x800, }; /** |