On Thursday 14 May 2009 12:56:21 ext Mark Brown wrote: > On Thu, May 14, 2009 at 12:48:49PM +0300, Peter Ujfalusi wrote: > > This is not really possible with the twl4030 codec. > > For simplicity, let's take the Audio left2 route: > > DACL2 -> PGAL2 ---> PreDriveL > > > > |-> PreDriveR > > |-> HeadsetL > > |-> CarkitL > > |-> HandsFreeL > > |-> HandsFreeR > > > > \-> Earpiece > > > > At least the Headset and HandsFree needs special mantra for the pop > > removal. If the Headset is not connected/used than there is no need to do > > the HS pop attenuation. > > The event could check the current setup and do whatever's appropriate? I have to think about this, but at first sight it does look awfully complicated thing to do (4 PGA, 7 output with mixers, 2+1 output mux)... > BTW, since you're saying the required ramp time is clock dependent > shouldn't it also be possible to configure the ramp time automatically > based on the clock that's been configured? The patch that I have sent is calculating the needed delay based on the MCLK + RAMP_DELAY value. I think I don't want to fixate the ramp delay to any value (meaning that the delay would last around 50ms). This seams to be also board specific, so I would rather leave this to the user to find the best value for the given board. -- Péter _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
