[PATCH 0/6] ALSA: firewire: media clock recovery for syt-unaware devices
Takashi Iwai
tiwai at suse.de
Tue Jun 1 08:21:53 CEST 2021
On Mon, 31 May 2021 04:50:57 +0200,
Takashi Sakamoto wrote:
>
> Hi,
>
> In a commit f9e5ecdfc2c2 ("ALSA: firewire-lib: add replay target to cache
> sequence of packet"), I categorize devices supported by drivers in ALSA
> firewire stack in terms of the way to deliver effective sampling
> transfer frequency. This patchset is for the devices in group 1.
>
> The devices in the group ignore presentation time to decide playback
> timing, therefore drivers to handle them can ignore processing
> presentation time expressed in syt field of CIP header. The sequence of
> the number of data blocks per packet is important for media clock recovery.
> With the patchset, the drivers are going to replay the sequence. For the
> detail of sequence replay, please refer to a commit 39c2649c71d8 ("ALSA:
> firewire-lib: replay sequence of incoming packets for outgoing packets").
>
> Takashi Sakamoto (6):
> ALSA: fireworks: delete SYTMATCH clock source
> ALSA: fireworks: perform sequence replay for media clock recovery
> ALSA: oxfw: perform sequence replay for media clock recovery
> ALSA: firewire-digi00x: perform sequence replay for media clock
> recovery
> ALSA: firewire-tascam: perform sequence replay for media clock
> recovery
> ALSA: fireface: perform sequence replay for media clock recovery
Applied all six patches now. Thanks.
Takashi
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