On Tue, 2008-09-09 at 16:42 +0100, Alan Horstmann wrote: > I've started a new thread to avoid confusion, and copied bits here: > > On Monday 08 September 2008 21:51, Mark Brown wrote: > > On Mon, Sep 08, 2008 at 09:27:13PM +0100, Alan Horstmann wrote: > > > With just this one change we have been successful in running the codec > > > over spi. At present we do have an issue with dapm during capture > > > -nothing is being turned on! Any pointers would be appreciated. > > > > If you define DEBUG when building soc-dapm.c (a define at the top of the > > source file will do the trick) then it will be very verbose about the > > decisions it's making - that will normally point out the problem. > > Probably either one of the input controls is not configured to make a > > path from the input pins to the ADC or the input has been mistakenly > > marked as disabled. > > That gets us lots of info to digest, and it does look like there are no dapm > capture paths -listing below. What we cannot fathom is why! > > Can users of wm8731 confirm successful capture with dapm on any platform? It > is not clear at this stage whether we are looking for a problem on our > platform, or a general bug in the driver dapm code. > Afaik, it works on corgi. > Any assistance would be appreciated. > Could you define your _intended_ input path i.e. Mic --> Mixer --> ADC > Alan > > widget ADC > HiFi Capture stream Capture event 1 > widget DAC > HiFi Playback stream Capture event 1 > reg old 5f new 5f change 0 > reg old 5f new 5f change 0 > DAPM WM8731 snd_soc_dapm_stream_event > Ext Spk: Off in 0 out 1 > in static LHPOUT > Int Mic: Off in 1 out 0 > out static Mic Bias > LLINEIN: Off in 0 out 1 > out static Line Input > RLINEIN: Off in 0 out 1 > out static Line Input > MICIN: Off in 1 out 0 > in static Mic Bias > out static Mic Bias > Mic Bias: Off in 1 out 0 > in static Int Mic > in static MICIN > out static MICIN > Line Input: Off in 0 out 1 > in static RLINEIN > in static LLINEIN > out Line In Input Mux > Input Mux: Off in 0 out 1 > in Line In Line Input > out static ADC > ADC: Off in 0 out 1 > in static Input Mux No valid input to ADC. We currently have R/LLINEIN --> Input Mux --> ADC but R/LLINEIN are not active. Call snd_soc_dapm_enable_pin(codec, pin) to activate. Liam _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
