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ALSA: doc: ReSTize HD-Audio-DP-MST-audio.txt

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A simple conversion from a plain text file.
Put to hd-audio subdirectory.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2016-11-10 17:41:45 +01:00
parent fe0abd18e1
commit 76ab4e1515
2 changed files with 21 additions and 10 deletions
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30
Documentation/sound/alsa/HD-Audio-DP-MST-audio.txt → Documentation/sound/hd-audio/dp-mst.rst
View File

@ -1,3 +1,7 @@
=======================
HD-Audio DP-MST Support
=======================
To support DP MST audio, HD Audio hdmi codec driver introduces virtual pin
and dynamic pcm assignment.
@ -44,10 +48,12 @@ Build Jack
----------
- dyn_pcm_assign
Will not use hda_jack but use snd_jack in spec->pcm_rec[pcm_idx].jack directly.
Will not use hda_jack but use snd_jack in spec->pcm_rec[pcm_idx].jack directly.
- !dyn_pcm_assign
Use hda_jack and assign spec->pcm_rec[pcm_idx].jack = jack->jack statically.
Use hda_jack and assign spec->pcm_rec[pcm_idx].jack = jack->jack statically.
Unsolicited Event Enabling
@ -58,16 +64,20 @@ Enable unsolicited event if !acomp.
Monitor Hotplug Event Handling
------------------------------
- acomp
pin_eld_notify() -> check_presence_and_report() -> hdmi_present_sense() ->
sync_eld_via_acomp().
Use directly snd_jack_report() on spec->pcm_rec[pcm_idx].jack for
both dyn_pcm_assign and !dyn_pcm_assign
pin_eld_notify() -> check_presence_and_report() -> hdmi_present_sense() ->
sync_eld_via_acomp().
Use directly snd_jack_report() on spec->pcm_rec[pcm_idx].jack for
both dyn_pcm_assign and !dyn_pcm_assign
- !acomp
Hdmi_unsol_event() -> hdmi_intrinsic_event() -> check_presence_and_report() ->
hdmi_present_sense() -> hdmi_prepsent_sense_via_verbs()
Use directly snd_jack_report() on spec->pcm_rec[pcm_idx].jack for dyn_pcm_assign.
Use hda_jack mechanism to handle jack events.
hdmi_unsol_event() -> hdmi_intrinsic_event() -> check_presence_and_report() ->
hdmi_present_sense() -> hdmi_prepsent_sense_via_verbs()
Use directly snd_jack_report() on spec->pcm_rec[pcm_idx].jack for dyn_pcm_assign.
Use hda_jack mechanism to handle jack events.
Others to be added later

1
Documentation/sound/hd-audio/index.rst
View File

@ -7,3 +7,4 @@ HD-Audio
notes
models
controls
dp-mst