Re: [PATCH 0/5] ALSA: fireface: add support for Fireface 800 with streaming functionality

[Takashi Iwai <tiwai@suse.de>]

On Sun, 16 Dec 2018 09:32:28 +0100,
Takashi Sakamoto wrote:
> 
> Hi,
> 
> My former patchset adds support for Fireface 800 with MIDI functionality
> only[1]. This patchset updates driver with packet streaming
> functionality. As a result, both of PCM frames/MIDI messages are
> available.
> 
> This patchset is based on my former patch to fix a bug to switch
> frame fetching mode:
> 
> [alsa-devel] [PATCH] ALSA: fireface: fix for state to fetch PCM frames
> http://mailman.alsa-project.org/pipermail/alsa-devel/2018-December/143150.html
> 
> Unfortunately, my initial commit of ALSA fireface driver in v4.12 kernel
> includes bugs to handle tx isochronous packets. When testing this
> patchset, please apply below patchset in advance:
> 
> [alsa-devel] [PATCH 0/3] ALSA: firewire-lib: fixes for processing packets without CIP header
> http://mailman.alsa-project.org/pipermail/alsa-devel/2018-December/143146.html
> 
> For testers, a remote branch including overall patches is available in
> my remote repository in github.com[2]. They can be backport to Linux
> kernel v4.17 or later.
> 
> I note that this driver can generate hissing noise long-periodically as I
> reported for Fireface 400[3]. The cause is not cleared yet.
> 
> [1] http://mailman.alsa-project.org/pipermail/alsa-devel/2018-December/142826.html
> [2] https://github.com/takaswie/snd-firewire-improve/tree/topic/ff800-pcm
> [3] http://mailman.alsa-project.org/pipermail/alsa-devel/2015-December/102261.html
> 
> Takashi Sakamoto (5):
>   ALSA: fireface: share helper function to switch fetching mode
>   ALSA: fireface: code refactoring to handle multiplier mode
>   ALSA: fireface: allocate isochronous resources in mode-specific
>     implementation
>   ALSA: fireface: add support for packet streaming on Fireface 800
>   ALSA: fireface: code refactoring to handle model-specific registers

Applied all five patches now.  Thanks.


Takashi