Re: ASoC: Max98090 Codec DAPM Widget setup in Open Embedded

Re: ASoC: Max98090 Codec DAPM Widget setup in Open Embedded

[noman pouigt]

On Mon, Mar 23, 2015 at 11:53 PM, noman pouigt <variksla@gmail.com> wrote:
>> I would like to know which file I can use to connect/enable
>> DPAM widgets permanently so a simple aplay/record can work?
>>
>> My environment is:
>> - Yocto Linux Kernel 3.10 - (DTS based)
>> - Max98090 Codec
>> - imx6SL SoC
>>
>> I thought about doing this in alsa.conf or asound.conf but I couldn't
>> find a single example with DAPM widgets .
>
> I am also stuck with the same problem. I am sure ALSA experts
> can help here.
>
> What i want to know is how to set the dapm widgets in open
> embedded? Is it alsa.conf or asound.conf ?
>
> I need to set something like this:
> amixer cset  name="LEFT MIXER DAC" 1
>
> Using amixer i am able to playback but i don't know how can i
> modify conf file to have this dapm widgets associated with
> a device.
>
> Any example would suffice.

Re: ASoC: Max98090 Codec DAPM Widget setup in Open Embedded

[Lars-Peter Clausen]

On 03/24/2015 07:54 AM, noman pouigt wrote:
> On Mon, Mar 23, 2015 at 11:53 PM, noman pouigt <variksla@gmail.com> wrote:
>>> I would like to know which file I can use to connect/enable
>>> DPAM widgets permanently so a simple aplay/record can work?
>>>
>>> My environment is:
>>> - Yocto Linux Kernel 3.10 - (DTS based)
>>> - Max98090 Codec
>>> - imx6SL SoC
>>>
>>> I thought about doing this in alsa.conf or asound.conf but I couldn't
>>> find a single example with DAPM widgets .
>>
>> I am also stuck with the same problem. I am sure ALSA experts
>> can help here.
>>
>> What i want to know is how to set the dapm widgets in open
>> embedded? Is it alsa.conf or asound.conf ?
>>
>> I need to set something like this:
>> amixer cset  name="LEFT MIXER DAC" 1
>>
>> Using amixer i am able to playback but i don't know how can i
>> modify conf file to have this dapm widgets associated with
>> a device.
>>
>> Any example would suffice.

Hi,

The whole point of DAPM (dynamic audio power management) is that you don't 
have to manually power up or down a widget. Userspace configures the routing 
of the audio paths and the kernel automatically detects which parts of the 
chip need to be powered up for the current routing configuration.

Why do you want to manually enable a widget?

- Lars

Re: ASoC: Max98090 Codec DAPM Widget setup in Open Embedded

[Variksla]

> On Mar 24, 2015, at 12:26 AM, Lars-Peter Clausen <lars@metafoo.de> wrote:
> 
>> On 03/24/2015 07:54 AM, noman pouigt wrote:
>> On Mon, Mar 23, 2015 at 11:53 PM, noman pouigt <variksla@gmail.com> wrote:
>>>> I would like to know which file I can use to connect/enable
>>>> DPAM widgets permanently so a simple aplay/record can work?
>>>> 
>>>> My environment is:
>>>> - Yocto Linux Kernel 3.10 - (DTS based)
>>>> - Max98090 Codec
>>>> - imx6SL SoC
>>>> 
>>>> I thought about doing this in alsa.conf or asound.conf but I couldn't
>>>> find a single example with DAPM widgets .
>>> 
>>> I am also stuck with the same problem. I am sure ALSA experts
>>> can help here.
>>> 
>>> What i want to know is how to set the dapm widgets in open
>>> embedded? Is it alsa.conf or asound.conf ?
>>> 
>>> I need to set something like this:
>>> amixer cset  name="LEFT MIXER DAC" 1
>>> 
>>> Using amixer i am able to playback but i don't know how can i
>>> modify conf file to have this dapm widgets associated with
>>> a device.
>>> 
>>> Any example would suffice.
> 
> Hi,
> 
> The whole point of DAPM (dynamic audio power management) is that you don't have to manually power up or down a widget. Userspace configures the routing of the audio paths and the kernel automatically detects which parts of the chip need to be powered up for the current routing configuration.
> 
> Why do you want to manually enable a widget?

In android we have ucm files where dapm routings are associated with each device. Same way where can I list down dapm routings in open embedded?
We know that user space gives the routings but we need to associate each device with certain set of dapm routes so i am looking for a place where we can list down dapm routes which gets triggered when a specific device is chosen for playback or recording. Something analogous to ucm files in open embedded? I couldn't find a way to associate dapm routes with a specific device in conf files. Can we use Asound.conf for this purpose?
> 
> - Lars
> 

Re: ASoC: Max98090 Codec DAPM Widget setup in Open Embedded

[Omer]

Variksla <variksla <at> gmail.com> writes:

> 
> 
> > On Mar 24, 2015, at 12:26 AM, Lars-Peter Clausen <lars <at> metafoo.de> 
> > 
> >> On 03/24/2015 07:54 AM, noman pouigt wrote:
> >> On Mon, Mar 23, 2015 at 11:53 PM, noman pouigt <variksla <at> gmail.com> 
wrote:
> >>>> I would like to know which file I can use to connect/enable
> >>>> DPAM widgets permanently so a simple aplay/record can work?
> >>>> 
> >>>> My environment is:
> >>>> - Yocto Linux Kernel 3.10 - (DTS based)
> >>>> - Max98090 Codec
> >>>> - imx6SL SoC
> >>>> 
> >>>> I thought about doing this in alsa.conf or asound.conf but I couldn't
> >>>> find a single example with DAPM widgets .
> >>> 
> >>> I am also stuck with the same problem. I am sure ALSA experts
> >>> can help here.
> >>> 
> >>> What i want to know is how to set the dapm widgets in open
> >>> embedded? Is it alsa.conf or asound.conf ?
> >>> 
> >>> I need to set something like this:
> >>> amixer cset  name="LEFT MIXER DAC" 1
> >>> 
> >>> Using amixer i am able to playback but i don't know how can i
> >>> modify conf file to have this dapm widgets associated with
> >>> a device.
> >>> 
> >>> Any example would suffice.
> > 
> > Hi,
> > 
> > The whole point of DAPM (dynamic audio power management) is that you don't
 have to manually power up or down
> a widget. Userspace configures the routing of the audio paths and the kernel 
automatically detects which
> parts of the chip need to be powered up for the current routing configuration.
> > 
> > Why do you want to manually enable a widget?
> 
> In android we have ucm files where dapm routings are associated with each
 device. Same way where can I list
> down dapm routings in open embedded?
> We know that user space gives the routings but we need to associate each 
device with certain set of dapm
> routes so i am looking for a place where we can list down dapm routes which
 gets triggered when a specific
> device is chosen for playback or recording. Something analogous to ucm files
 in open embedded? I couldn't
> find a way to associate dapm routes with a specific device in conf files.
 Can we use Asound.conf for this purpose?
> > 
> > - Lars
> > 
> 

In my  case, I do not want users to run these amixer commands to setup DAPM
routing if they just want to use aplay/arecord.

amixer cset name='LINMOD Mux' 1
amixer cset name='Left Receiver Mixer Left DAC Switch' 1
amixer cset name='Right Receiver Mixer Right DAC Switch' 1

When I run aplay without above commands, I can see aplay not able to
connect further than '"DACL" since there are multiple routes available
in codec driver. Only enabling the right DAC switches using above
commands completes routes:
Logs:
dapm_mark_dirty:max98090:dapm enter HiFi Playback
dapm_dirty_widget:max98090:dapm enter HiFi Playback
max98090 2-0010: Marking HiFi Playback dirty due to stream event
dapm_power_widgets:max98090:dapm enter
dapm_reset:max98090:dapm enter
dapm_power_one_widget:max98090:dapm enter
dapm_dac_check_power:max98090:dapm enter
dapm_generic_check_power:max98090:dapm enter
is_connected_input_ep:max98090:dapm HiFi Playback
is_connected_output_ep:max98090:dapm HiFi Playback
is_connected_output_ep:max98090:dapm AIFINL
is_connected_output_ep:max98090:dapm LTENL Mux
is_connected_output_ep:max98090:dapm DACL
is_connected_output_ep:max98090:dapm AIFINR
is_connected_output_ep:max98090:dapm LTENR Mux
is_connected_output_ep:max98090:dapm DACR
is_connected_output_ep:max98090:dapm AIFINL
is_connected_output_ep:max98090:dapm AIFINR


Available DAPM Routes:
{"Right Headphone Mixer", "Left DAC Switch", "DACL"},
{"Left Speaker Mixer", "Left DAC Switch", "DACL"},
{"Right Speaker Mixer", "Left DAC Switch", "DACL"},
{"Left Receiver Mixer", "Left DAC Switch", "DACL"},
{"Right Receiver Mixer", "Left DAC Switch", "DACL"},


I think there must be a way to enable complete DAPM routes all the
 way from "HiFi Playback" to one of the outputs defined in
SND_SOC_DAPM_OUTPUT() from userspace without having to type commands.

asound.state save states however its not dynamic. i.e, it will just reload
 settings. Won't switch between paths.

ASoC: Max98090 Codec DAPM Widget setup in Open Embedded

[C. Omer Rafique]

I would like to know which file I can use to connect/enable
DPAM widgets permanently so a simple aplay/record can work?

My environment is:
- Yocto Linux Kernel 3.10 - (DTS based)
- Max98090 Codec
- imx6SL SoC

I thought about doing this in alsa.conf or asound.conf but I couldn't
find a single example with DAPM widgets .

Thank you

Choudhary