* HDAudio and pulse audio
@ 2019-04-25 8:50 rander.wang
2019-04-28 7:51 ` Takashi Iwai
0 siblings, 1 reply; 2+ messages in thread
From: rander.wang @ 2019-04-25 8:50 UTC (permalink / raw)
To: alsa-devel
Hi all,
I am working on sound open firmware in ASoC to enable HDAudio
with pulse audio in ubuntu.
There is a HDAudio codec driver hdac_hda.c in ASoC, which
invokes HDAudio functions defined
in sound/pci/hda, for ASoC to utilize the HDAudio codec. Now I
get a issue: pulse audio can't detect
headphone pluged or not.
Could anyone help to tell me about Jack detection flow in
HDAudio and how does HDAudio
work with pulse audio ? Does HDAudio report a event to pulse
audio when headphone detected ?
As I know, ASoC codec driver would invoke snd_soc_jack_report
to notify user mode, how about HDAudio
driver ?
Thanks!
Rander
_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: HDAudio and pulse audio
2019-04-25 8:50 HDAudio and pulse audio rander.wang
@ 2019-04-28 7:51 ` Takashi Iwai
0 siblings, 0 replies; 2+ messages in thread
From: Takashi Iwai @ 2019-04-28 7:51 UTC (permalink / raw)
To: rander.wang; +Cc: alsa-devel
On Thu, 25 Apr 2019 10:50:32 +0200,
rander.wang wrote:
>
> Hi all,
>
> I am working on sound open firmware in ASoC to enable HDAudio
> with pulse audio in ubuntu.
> There is a HDAudio codec driver hdac_hda.c in ASoC, which
> invokes HDAudio functions defined
> in sound/pci/hda, for ASoC to utilize the HDAudio codec. Now I
> get a issue: pulse audio can't detect
> headphone pluged or not.
>
> Could anyone help to tell me about Jack detection flow in
> HDAudio and how does HDAudio
> work with pulse audio ? Does HDAudio report a event to pulse
> audio when headphone detected ?
> As I know, ASoC codec driver would invoke snd_soc_jack_report
> to notify user mode, how about HDAudio
> driver ?
PA only sees the "XXX Jack" ALSA control notification, IIRC.
And these controls are created by the HD-audio codec driver, and
driven by the HD-audio unsolicited events.
So first off, check whether the jack detection really works on your
chip by issuing the raw HD-audio verbs. If it's properly detected,
check whether the unsolicited events are issued and processed. Then
follow the code and see whether the "* Jack" control change is
invoked.
HTH,
Takashi
_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2019-04-28 7:51 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2019-04-25 8:50 HDAudio and pulse audio rander.wang
2019-04-28 7:51 ` Takashi Iwai
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.