On Sat, 20 Feb 2016 08:18:55 +0100, Takashi Sakamoto wrote: > > Hi, > > This patchset is to simplify codes of ALSA bebob driver by giving up > updating streams at bus reset. > > DM1000/DM1100/DM1500 chipsets have a quirk to transfer packets with > discontinuous value in 'dbc' field of CIP header. This is against packet > streaming protocol (IEC 61883-1/6). > > In the specification, units should continue packet streaming during 1 seconds > after bus reset. During this period, connections are updated. Else, the > streaming stops. > > The discontinuity causes firewire-lib module (packet streaming layer) to stop > streaming immediately. This is done far earlier than executing bus-reset > handler. Therefore, updating streams at the bus-reset handler has no meaning. > > This patchset will have little impacts for userspace applications because > most users won't update IEEE 1394 bus when playbacking/recording. And PCM > substream recovery is still available. > > Regards > > > Takashi Sakamoto (4): > ALSA: bebob: simplify bus-reset handling > ALSA: bebob: move mutex from function callee to callers > ALSA: bebob: change type of substream counter from atomic_t to > unsigned int > ALSA: bebob: give up updating streams at bus reset handler Applied all four patches. Thanks. Takashi > > sound/firewire/bebob/bebob.c | 21 ++++++++++---- > sound/firewire/bebob/bebob.h | 5 +--- > sound/firewire/bebob/bebob_midi.c | 16 +++++++--- > sound/firewire/bebob/bebob_pcm.c | 28 +++++++++++++----- > sound/firewire/bebob/bebob_stream.c | 58 +++---------------------------------- > 5 files changed, 53 insertions(+), 75 deletions(-) > > -- > 2.5.0 > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
