Hi,
Sorry about the delayed reply...
On Thursday 20 November 2008 17:39:14 ext Steve Sakoman wrote:
>
> Agreed! This is a really good thing to do.
>
> Had I not been under a lot of time pressure when doing the original
> version of the driver I would have taken this approach myself.
>
> I'm glad to see that you are tackling this. Peter, you should post
> your patches for comment. Might help speed things along if we get
> more folks looking and contributing.
>
> Steve
>
I'm planing to send patches as soon as possible.
I have been working with the twl4030 codec for about a week now, so the
thing that I have is far from what it should be at the end...
I can explain in short what I have at the moment and what is missing:
- Playback route controls for:
- PreDriveL (Off, Voice, DACL1, DACL2, DACR2)
- PreDriveR (Off, Voice, DACR1, DACR2, DACL2)
- HeadsetL (Off, Voice, DACL1, DACL2)
- HeadsetR (Off, Voice, DACR1, DACR2)
- CarkitL (Off, Voice, DACL1, DACL2) # or PRECKT_Right
- CarkitR (Off, Voice, DACR1, DACR2) # or PRECKT_Left
- HandsfreeL (Voice, DACL1, DACL2, DACR2) # or IHFL or Class-DL
# (depends which text I take)
- HandsfreeR (Voice, DACR1, DACR2, DACL2) # or IHFR or Class-DR
# (depends which text I take)
Volume/Gain controls:
- FGAIN in DAC2 (mute, -62 - 0 dB, in 1 dB steps)
- CGAIN in DAC2 (0 - 12 dB, in 6 dB steps)
- PreDrive(L and R, not separate) playback gain,
or volume control (mute, -6, 0, 6 dB)
- Headset(L and R, not separate) playback gain,
or volume control (mute, -6, 0, 6 dB)
- Carkit(L and R, not separate) playback gain,
or volume control (mute, -6, 0, 6 dB)
All of the above are added to the twl4030_snd_controls at this
point of time.
The twl4030_reg has been set to disable all outputs by
default, it is up to the user to enable the needed outputs.
SND_SOC_DAPM_INPUT() and SND_SOC_DAPM_OUTPUT() definitions for
all physical inputs, outputs.
I have not yet started with the correct dapm_route for the TWL,
it is going to be quite a mess.
At the moment outputs are connected to DACL/R2, for example:
{"PREDRIVL", NULL, "DACL2"}
So in the playback side what you can do already:
You can select the routing individually for all outputs (except the
Earpiece, hmm I forgot about it).
The capture path is kind of untouched, it is in the to-do list, it does
works with the DIGIMIC0 for me.
Three sets of get/put function for dealing with TWL's specially crafted
registers (Routing selections, Gain controls).
What needs to be done:
Lot's of things...
Clean up?
snd_soc_dapm_route, snd_soc_dapm_widget things (I need an A3 paper for that).
Capture controls and corresponding dapm_route, dapm_widgets
So this is my current status, are you still interested to see these things?
What else should I add before I send the patch?
--
Péter
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