Dne 04. 05. 21 v 17:47 Hans de Goede napsal(a): > Hi Jaroslav, > > On 5/4/21 10:53 AM, Jaroslav Kysela wrote: >> Dne 03. 05. 21 v 22:52 Hans de Goede napsal(a): >>> Hi All, >>> >>> This series seems to have fallen through the cracks, >>> so here is a resend of it. >>> >>> Regards, >> >> Thank you, Hans. The problem with this implementation is that it's really card >> specific. Also, ASoC codec drivers have usually ID names based on registers so >> the mapping for the user is problematic anyway (the functionality is different >> from the name or not related to the name). I'm actually evaluating another >> solution which is more flexible: >> >> 1) add control remap plugin to allow the control ID remapping in the >> alsa-lib's control API, so we can mangle those identifiers there (already >> implemented) >> >> 2) add local and global alsa-lib configurations per UCM card specified in the >> UCM configuration files; the configurations may be for both control and PCM >> devices (restrict or set specific parameters) > > Ok, thank you for working on this. > >> I will notify you when I finish my tests. > > Yes, please let me know when you've something ready to test, then I'll take > a look at adding the necessary bits for the bycr-rt5640 and cht-bsw-rt567 > UCM profiles, as some control renaming is necessary to make sure that > the hw-volume control on these devices also correctly controls the > hw mute controls (which in turn are necessary for both full muting and > for mute LED control). It seems that things started to work. I pushed everything to the repos (alsa-lib/alsa-utils/alsa-ucm-conf) and picked bits from your configs. If you can give a look and a test, it would be nice. The changes for the specific codecs are quite straight like: https://github.com/alsa-project/alsa-ucm-conf/commit/2072ab794b69cdf4f070db5467387d08a65c4309 The global alsa-lib's configuration does the redirects to the hw specific configs (if found) per card. UCM can store this "per card" configuration to /var/lib/alsa/card<NUMBER>.conf.d tree, which allows us to define the hw specific configuration. Both control and PCM devices can be (re)configured. UCM was extended to allow inline the alsa-lib's configuration which can be private to UCM or saved to a global config file (/var/lib/alsa tree for example). By default, I made the private alsa-lib's configuration for all UCM applications, so the users cannot break UCM with their configuration changes. Jaroslav -- Jaroslav Kysela <perex@xxxxxxxx> Linux Sound Maintainer; ALSA Project; Red Hat, Inc.
