[Bug 2042902] Re: ucm2: soundwire: add rt713 SDCA device

[Athos Ribeiro]

Hi Artur,

is this last patch the one for noble? The changelog entry still says
mantic there.

Do note that the mantic version will need to be adjusted as per the SRU
policy in item 4.1 in
https://wiki.ubuntu.com/StableReleaseUpdates#Procedure.

Finally, once you are done, could you adjust the tasks for each series
in this launchpad bug as suggested by Paride? Thanks!

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Title:
  ucm2: soundwire: add rt713 SDCA device

Status in OEM Priority Project:
  New
Status in alsa-ucm-conf package in Ubuntu:
  New

Bug description:
  [ Impact ]
  Affects devices with SoundWire-Audio Codec-ALC713 and SoundWire-Jack Codec-ALC713.
  Without correct configurations in userspace above codecs cannot be used. Thus in Settings > Sound > Output test doesn't produce sounds and Input device is greyed out.

  [ Fix ]
  Adding rt713 config files in ucm2 will allow to utilize those codecs.
  Upstream commit added support: https://github.com/alsa-project/alsa-ucm-conf/pull/363

  [ Test Plan ]
  Device with the soundwire card

  $ cat /proc/asound/cards
   0 [sofsoundwire   ]: sof-soundwire - sof-soundwire
                        Intel Soundwire SOF

  Before fix:

  1. $ alsactl init
  alsa-lib utils.c:364:(uc_mgr_config_load_into) could not open configuration file /usr/share/alsa/ucm2/sof-soundwire/rt713.conf
  alsa-lib parser.c:77:(uc_mgr_config_load_file) error: failed to open file /usr/share/alsa/ucm2/sof-soundwire/rt713.conf: -2
  alsa-lib main.c:1412:(snd_use_case_mgr_open) error: failed to import hw:0 use case configuration -2
  Found hardware: "sof-soundwire" "Intel Meteorlake HDMI" "HDA:8086281d,80860101,00100000 cfg-spk:2 cfg-amp:2 hs:rt713-sdca spk:rt1316 mic:rt713-dmic" "" ""
  Hardware is initialized using a generic method

  2. $ amixer contents
  ...
  numid=24,iface=MIXER,name='Headphone Switch'
    ; type=BOOLEAN,access=rw------,values=1
    : values=off
  ...
  numid=33,iface=MIXER,name='IEC958 Playback Switch'
    ; type=BOOLEAN,access=rw------,values=1
    : values=off

  After fix: after adding patch files

  1. $ alsactl init
  alsa-lib main.c:779:(execute_sequence) exec '/bin/rm -rf /var/lib/alsa/card0.conf.d' failed (exit code 1)

  (note: assuming that failed to remove the empty directory is not a
  critical problem)

  2. $ amixer contents
  ...
  numid=24,iface=MIXER,name='Headphone Switch'
    ; type=BOOLEAN,access=rw------,values=1
    : values=on
  ...
  numid=33,iface=MIXER,name='IEC958 Playback Switch'
    ; type=BOOLEAN,access=rw------,values=1
    : values=on

  [Where problems could occur]

   * This change adds new hardware support.

   * The change only adds new hardware support,
     it will not affect other codec device.

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