[alsa-devel] [PATCH 0/6 v2] ALSA: dice: constrain PCM substreams to current sampling transfer frequency

[Takashi Sakamoto]

On Feb 9 2016 20:25, Takashi Iwai wrote:
> On Mon, 08 Feb 2016 14:54:14 +0100,
> Takashi Sakamoto wrote:
>>
>> Hi,
>>
>> This patchset is to update my former RFCv2 and for merge request to
>> upstream.
>>
>> [alsa-devel][RFC][PATCH 00/10 v2] ALSA: dice: stabiliza packet streaming
>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-December/101897.html
>>
>> Current ALSA Dice driver is written with somewhat ignoring actual hardware
>> design to perform 'dynamic sample rate selection'. As a result, the driver
>> includes some behaviors against users' expectation or functional
>> misleading.
>>
>> This patchset purges such over-engineering. As a result, userspace
>> applications can start PCM substreams just at current sampling
>> transfer frequency. If users want to start at different sampling
>> rate, they must set favorite rate in advance by tools. Currently,
>> ffado-mixer with ffado-dbus-server[1] and hinawa-dice-common-cui[2] are
>> available as such tool.
>>
>> For technical details, please refer to the post or our discussion in RFCv1:
>>
>> [alsa-devel] [RFC][PATCH 0/8] ALSA: dice: constrain PCM substreams to current sampling transfer frequency
>> http://mailman.alsa-project.org/pipermail/alsa-devel/2015-November/100525.html
>>
>> [1] as a part of FFADO utility
>> http://subversion.ffado.org/
>> [2] in hinawa-utils repository
>> https://github.com/takaswie/hinawa-utils
>>
>>
>> Regards
>>
>> Takashi Sakamoto (6):
>>   ALSA: dice: limit to current sampling transfer frequency
>>   ALSA: dice: limit stream to current sampling transfer frequency.
>>   ALSA: dice: add MIDI ports according to current number of MIDI
>>     substreams
>>   ALSA: dice: get the number of MBLA data channel at opening PCM
>>     substream
>>   ALSA: dice: purge generating channel cache
>>   ALSA: dice: ensure phase lock before starting streaming
> 
> Applied all six patches now to for-next branch.  Thanks.

I'm ease to hear the merge because I've been considering about this
issue for one and half year (since Sep 2014).


Thanks

Takashi Sakamoto