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

[Takashi Sakamoto]

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

 sound/firewire/fireface/ff-pcm.c            |  33 ++++--
 sound/firewire/fireface/ff-protocol-ff400.c |  81 +++++++------
 sound/firewire/fireface/ff-protocol-ff800.c | 116 ++++++++++++++++++
 sound/firewire/fireface/ff-stream.c         | 124 +++++++++++---------
 sound/firewire/fireface/ff-transaction.c    |   4 +-
 sound/firewire/fireface/ff.c                |  37 +++---
 sound/firewire/fireface/ff.h                |  21 ++--
 7 files changed, 283 insertions(+), 133 deletions(-)

-- 
2.19.1