[HDAudio][ALC285] Native speaker support for HP Spectre x360 15-eb0xxx

[Alexander Giese]

Hello again,

thank you for your fast reply!

I tried your solution and can confirm this:

 > To check the behavior, try the following:
 >
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x01
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x01
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x00
 >
 > this should enable the speaker, and the succeeding call
 >
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x01
 >
 > turns off the speaker.

Yes, that's exactly what happens.

 > Also,
 >
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x04
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x04
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x00
 >
 > turns on the mic-mute LED, and the succeeding call
 >
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x04
 >
 > turns off the LED.

This is right too. :)

 > If above is the confirmed, you can manage both in a shot by
 >
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x05
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x05
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x04
 >
 > will turn on the speaker but off the LED, and

This is right as well. But the succeeding call

 >
 >   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x05
 >

turns off mic-mute LED and speakers. However

hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x01

turns off speakers and turns mic-mute LED on. Following

hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x02

turns on both, speakers and mic-mute LED.

hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x04

turns off mic-mute LED and turns on speakers.

 > And, doesn't the machine have the playback mute LED?  Usually it's
 > controlled with the GPIO, too, but this case

Actually it has a playback-mute LED, but unfortunately I have not found 
the GPIO pin to activate it.
I tried by first doing SET_GPIO_DIR (with values 0x01, 0x02, 0x04). 
Foreach SET_GPIO_DIR I did SET_GPIO_MASK (with values 0x01, 0x02, 0x04) 
and foreach SET_GPIO_MASK I did SET_GPIO_DATA (with values 0x00, 0x01, 
0x02, 0x04).

I hope this test results help further understanding the pin layout.

Maybe you have some advice to find the playback-mute led?

Best regards

Alexander

Am 07.08.20 um 18:04 schrieb Takashi Iwai:
> On Fri, 07 Aug 2020 15:05:12 +0200,
> Alexander Giese wrote:
>>
>> Hello alsa-devel-team,
>>
>> I have a problem with the built-in speakers on the 2020 model of the
>> hp-spectre. From my unexperienced point of view, the audio sinks are
>> correctly identified and therefore I tried tweaking the GPIO pins with
>> success.
>>
>> Information from alsa-info is here:
>> http://alsa-project.org/db/?f=c8ee13e52fd6b2377573a7123c2887fe4d59c917
>>
>> When I use hda-verb with the following parameters 2 of 4 of my
>> built-in speakers start working:
>>
>> hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x02 (or 0x04)
>> hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x01
>> hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x01
> 
> So this means that GPIO pin#0 (0x01) is the amp, and it needs to be
> cleared.
> 
>> In addition, my mute-mic-led on the keyboard glows when:
>>
>> hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x01 (or 0x02)
>> hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x04
>> hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x04
> 
> And this means GPIO pin#2 being the mic-mute LED, inverted (0=on,
> 1=off).
> 
> To check the behavior, try the following:
> 
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x01
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x01
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x00
> 
> this should enable the speaker, and the succeeding call
> 
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x01
> 
> turns off the speaker.
> 
> Also,
> 
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x04
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x04
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x00
> 
> turns on the mic-mute LED, and the succeeding call
> 
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x04
> 
> turns off the LED.
> 
> If above is the confirmed, you can manage both in a shot by
> 
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIR 0x05
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x05
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x04
> 
> will turn on the speaker but off the LED, and
> 
>   hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x05
> 
> will turn on both speaker and LED.
> 
> And, doesn't the machine have the playback mute LED?  Usually it's
> controlled with the GPIO, too, but this case
> 
> 
>> Since I do not understand how the GPIO-settings are integrated and
>> applied in the upstream software for corresponding models, I would
>> very much appreciate any help to get this to work out of the box in
>> future releases so I do not have tweak my system all the time and
>> others can benefit as well.
>>
>> Any suggestions on getting all 4 speakers to work or the
>> mute-volume-led to glow are very much welcome alike!
> 
> The surround/bass speaker is often more difficult.  We need either the
> contact to the vendor or the reverse engineering.
> 
> 
> Takashi
>