Hi,
This patchset updates my previous RFCv2, and go for ALSA upstream. http://mailman.alsa-project.org/pipermail/alsa-devel/2017-January/117211.htm...
This patchset newly adds a driver into ALSA firewire stack, to support for some models in MOTU FireWire series: - 828mk2 - 828mk3 (FireWire only) - 828mk3 (Hybrid)
The driver supports playbacking/capturing PCM frames and MIDI messages for any sampling transfer frequencies, with current ALSA IEC 61883-1/6 packet streaming engine.
Unfortunately, units on MOTU FireWire series have many quirks against IEC 61883-1/6. This brings much commits and descriptions on this patchset. Sorry for reviewers but I'm glad to get your assist for this patchset.
As I note in 8th commit, at sampling transfer frequency based on 44.1kHz, the driver handles the units with choppy noises every few seconds. This is an issue which is not resolved yet.
Changes from RFCv2: - drop trial support for 828. If you have interests in development, please refer to one commit of my previous RFC. It describes v1 protocol. - http://mailman.alsa-project.org/pipermail/alsa-devel/2017-January/117226.htm... - improve commit messages.
Takashi Sakamoto (18): ALSA: firewire-motu: add skeleton for Mark of the unicorn (MOTU) FireWire series ALSA: firewire-motu: postpone sound card registration ALSA: firewire-motu: add a structure for model-dependent parameters. ALSA: firewire-motu: add an abstraction layer for three types of protocols ALSA: firewire-lib: record cycle count for the first packet ALSA: firewire-lib: add support for source packet header field in CIP header ALSA: firewire-lib: enable CIP_DBC_IS_END_EVENT for both directions of stream ALSA: firewire-motu: add MOTU specific protocol layer ALSA: firewire-motu: handle transactions specific for MOTU FireWire models ALSA: firewire-motu: add stream management functionality ALSA: firewire-motu: add proc node to show current statuc of clock and packet formats ALSA: firewire-motu: add PCM functionality ALSA: firewire-motu: add MIDI functionality ALSA: firewire-motu: add hwdep interface ALSA: firewire-motu: enable to read transaction cache via hwdep interface ALSA: firewire-motu: add support for MOTU 828mk2 as a model with protocol version 2 ALSA: firewire-lib: add a quirk of packet without valid EOH in CIP format ALSA: firewire-motu: add support for MOTU 828mk3 (FireWire/Hybrid) as a model with protocol version 3
include/uapi/sound/asound.h | 3 +- include/uapi/sound/firewire.h | 10 +- sound/firewire/Kconfig | 12 + sound/firewire/Makefile | 1 + sound/firewire/amdtp-stream.c | 36 ++- sound/firewire/amdtp-stream.h | 9 +- sound/firewire/motu/Makefile | 4 + sound/firewire/motu/amdtp-motu.c | 388 ++++++++++++++++++++++++++++++++ sound/firewire/motu/motu-hwdep.c | 198 ++++++++++++++++ sound/firewire/motu/motu-midi.c | 169 ++++++++++++++ sound/firewire/motu/motu-pcm.c | 398 +++++++++++++++++++++++++++++++++ sound/firewire/motu/motu-proc.c | 118 ++++++++++ sound/firewire/motu/motu-protocol-v2.c | 237 ++++++++++++++++++++ sound/firewire/motu/motu-protocol-v3.c | 312 ++++++++++++++++++++++++++ sound/firewire/motu/motu-stream.c | 381 +++++++++++++++++++++++++++++++ sound/firewire/motu/motu-transaction.c | 137 ++++++++++++ sound/firewire/motu/motu.c | 264 ++++++++++++++++++++++ sound/firewire/motu/motu.h | 161 +++++++++++++ 18 files changed, 2827 insertions(+), 11 deletions(-) create mode 100644 sound/firewire/motu/Makefile create mode 100644 sound/firewire/motu/amdtp-motu.c create mode 100644 sound/firewire/motu/motu-hwdep.c create mode 100644 sound/firewire/motu/motu-midi.c create mode 100644 sound/firewire/motu/motu-pcm.c create mode 100644 sound/firewire/motu/motu-proc.c create mode 100644 sound/firewire/motu/motu-protocol-v2.c create mode 100644 sound/firewire/motu/motu-protocol-v3.c create mode 100644 sound/firewire/motu/motu-stream.c create mode 100644 sound/firewire/motu/motu-transaction.c create mode 100644 sound/firewire/motu/motu.c create mode 100644 sound/firewire/motu/motu.h