At Tue, 06 Mar 2012 12:25:12 -0800, Kevin Hilman wrote:
Takashi Iwai tiwai@suse.de writes:
At Tue, 6 Mar 2012 09:28:12 +0800, Raymond Yau wrote:
2012/3/6, Kevin Hilman khilman@ti.com:
Raymond Yau superquad.vortex2@gmail.com writes:
2012/3/3, Kevin Hilman khilman@ti.com:
Raymond Yau superquad.vortex2@gmail.com writes:
> 2012/3/2, Kevin Hilman khilman@ti.com: > > >>> Does your headset/mic has a TRRS (Tip, ring, ring, sleeve) connector >>> instead of TRS (Tip, ring, sleeve) connector ? > >> Yes. It's TRRS. > > Does it mean that the headset/mic is a mono mic ? > > Is the internal mic mono or stereo ?
I believe it's mono. Based on vumeter activity, and the fact that changing only one slider in hda_analyzer is needed to quiet/mute the mic.
Not sure any difference between cs4206 and cs4207
It seem that you can select ADC1 and ADC2 channel mode in cs4207
‘00’b - ADC2 left channel is mapped to HDA left channel and ADC2 right channel is mapped HDA right channel (normal mode). ‘01’b - ADC2 left channel is mapped to both HDA left and right channels. ADC2 right channel is discarded (mono mode). ‘10’b - ADC2 right channel is mapped to both HDA left and right channels. ADC2 left channel is discarded (alternate mono mode). ‘11’b - ADC2 left channel is mapped to HDA right channel and ADC2 right channel is mapped to HDA left channel (channel swap mode).
Do any of the hda tools allow me to tweak this from userspace?
you should ask Takarshi as he added this patch, he may know whether cs4206 support the above feature
http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commitdiff;h=40c...
You can play with hda-emu to send vendor-specific COEF, as found in the commit above. But it's at your own risk; the patch I made is just a translation from other information I've got from Cirrus at that time.
Unfortunately, I'm not really familiar with audio codecs, and am finding that undersanding the verbs and and sending the right ones with the right coef (and finding out what was actually written) seems to be a bit out of my league.
If someone can suggest what to try with hda-emu, I'm willing, but otherwise I guess I have to opt for an external USB audio adapater for the headset. :(
Ah, of course, I meant hda-verb, not hda-emu...
Takashi