ProjectOSX

Welcome Guest!

Returning User? Login here.

Want membership privileges? Register here.

 
Start a new topic Add Reply
> How The Mutegpio?
mayjune
post Feb 23 2010, 09:32 AM
Post #1
Hello,

I want to understand the functioning of muteGpio that occur in resource platform.

Thank you
ASUS S101 SL 10.6.2
neXus
post Aug 10 2010, 08:58 AM
Post #2
QUOTE (mayjune @ Feb 23 2010, 11:32 AM) *
Hello,

I want to understand the functioning of muteGpio that occur in resource platform.

Thank you


Don't know what is it exactly for but I know to find them :

VREF (50/80/100) -> Hex (32,50,64) + 0100 + NID (hex) -> Converted du dec

Get the VREF from the codec dump, for some device, with VREF _HIZ, MUTEGPIO is 0

example :

Node 0x18 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Pin-ctls: 0x24: IN VREF_80
-> 0x50010018 -> 1342242840
Node 0x19 [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Pin-ctls: 0x24: IN VREF_80
-> 0x50010019 -> 1342242841
Node 0x1a [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Pin-ctls: 0x20: IN VREF_HIZ
-> O
Node 0x1b [Pin Complex] wcaps 0x40018f: Stereo Amp-In Amp-Out
Pin-ctls: 0x40: OUT VREF_HIZ
-> O
Trauma
post Aug 10 2010, 09:53 AM
Post #3
Interesting smile.gif
gsam_fan
post Dec 13 2010, 03:14 PM
Post #4
some findings here.....not only for mutegpio

chech out for pic_ctrl ...if VREF is the same then nodes are "group in" the same amp

this way 5.1 works out-of-the-box and HP detect mutes ...hehe

ex.
say that you have group 40 41 and 42 for LineOUTs (5.1) ...and vref _HIZ for HP and Green lineOUT (meens 0).
place MUTEGPIO=0 for both and group them to one amp-mixer node
when you plug the HP the VREF (Voltage reference) goes to 0Volt and mutes this amp-mixer..
anything connected to that amp-mixer is mutes...
nice eeeeeee?

wink.gif

This post has been edited by gsam_fan: Dec 13 2010, 03:30 PM
just a unix user...

Add Reply Start a new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members: