In a commit c4d860a0d256 ("ALSA: bebob: loosen up severity of checking
continuity for BeBoB v3 quirk"), a workaround was added for the quirk in
BeBoB protocol version 3 against the discontinuity of data block counter.
As long as seeing with sequence replay for media clock recovery, such
quirk disappears.
This commit deletes the workaround.
Signed-off-by: Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
---
sound/firewire/bebob/bebob.c | 7 -------
sound/firewire/bebob/bebob.h | 2 --
sound/firewire/bebob/bebob_stream.c | 8 --------
3 files changed, 17 deletions(-)
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index e7dd112c31c5..25222cc27e43 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -75,7 +75,6 @@ name_device(struct snd_bebob *bebob)
u32 hw_id;
u32 data[2] = {0};
u32 revision;
- u32 version;
int err;
/* get vendor name from root directory */
@@ -108,12 +107,6 @@ name_device(struct snd_bebob *bebob)
if (err < 0)
goto end;
- err = snd_bebob_read_quad(bebob->unit, INFO_OFFSET_BEBOB_VERSION,
- &version);
- if (err < 0)
- goto end;
- bebob->version = version;
-
strcpy(bebob->card->driver, "BeBoB");
strcpy(bebob->card->shortname, model);
strcpy(bebob->card->mixername, model);
diff --git a/sound/firewire/bebob/bebob.h b/sound/firewire/bebob/bebob.h
index edd93699ce1a..fc2b9b36159c 100644
--- a/sound/firewire/bebob/bebob.h
+++ b/sound/firewire/bebob/bebob.h
@@ -109,8 +109,6 @@ struct snd_bebob {
/* for M-Audio special devices */
void *maudio_special_quirk;
- /* For BeBoB version quirk. */
- unsigned int version;
bool discontinuity_quirk;
struct amdtp_domain domain;
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c
index 6d47c25654e6..02972b32e170 100644
--- a/sound/firewire/bebob/bebob_stream.c
+++ b/sound/firewire/bebob/bebob_stream.c
@@ -456,14 +456,6 @@ static int init_stream(struct snd_bebob *bebob, struct amdtp_stream *stream)
}
if (stream == &bebob->tx_stream) {
- // BeBoB v3 transfers packets with these qurks:
- // - In the beginning of streaming, the value of dbc is
- // incremented even if no data blocks are transferred.
- // - The value of dbc is reset suddenly.
- if (bebob->version > 2)
- bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC |
- CIP_SKIP_DBC_ZERO_CHECK;
-
// At high sampling rate, M-Audio special firmware transmits
// empty packet with the value of dbc incremented by 8 but the
// others are valid to IEC 61883-1.
--
2.27.0
