On 15.04.2021 20:25, Mark Brown wrote: > On Thu, Apr 15, 2021 at 04:56:00PM +0000, Codrin.Ciubotariu@xxxxxxxxxxxxx wrote: > >> Are there any plans for refactoring DPCM? any ideas ongoing? I also have >> some changes for PCM dmaengine, in the same 'style', similar to what I >> sent some time ago... >> I can adjust to different ideas, if there are any, but, for a start, can >> anyone confirm that the problem I am trying to fix is real? > > Lars-Peter's presentation from ELC in 2016 (!) is probably the clearest > summary of the ideas: > > https://elinux.org/images/e/e7/Audio_on_Linux.pdf > https://youtu.be/6oQF2TzCYtQ > > Essentially the idea is to represent everything, including the DSPs, as > ASoC components and be able to represent the digital links between > components in the DAPM graph in the same way we currently represent > analogue links. This means we need a way to propagate digital > configuration along the DAPM graph (or a parallel, cross linked digital > one). Sadly I'm not really aware of anyone actively working on the > actual conversion at the minute, Morimoto-san has done a lot of great > preparatory work to make everything a component which makes the whole > thing more tractable. > Thank you for the links! So basically the machine driver disappears and all the components will be visible in user-space. If there is a list with the 'steps' or tasks to achieve this? I can try to pitch in. Best regards, Codrin
