On Fri, 2007-10-19 at 07:38 +0200, Takashi Iwai wrote: > At Fri, 19 Oct 2007 14:02:43 +0800, > zhejiang wrote: > > > > On Thu, 2007-10-18 at 22:55 +0800, Takashi Iwai wrote: > > > At Thu, 18 Oct 2007 10:49:16 +0800, > > > zhejiang wrote: > > > > > > > > Hi, > > > > > > > > Dell 1210 have three jacks on the front. > > > > Two of them serve as output jack and one serve as microphone. > > > > The microphone can be switched to output model too. > > > > > > > > There are some problems with current dell 1210 driver: > > > > 1.Unable to use the front microphone > > > > 2.Unable to switch the microphone > > > > 3.If plug the left hp,another hp will be muted,so it's impossible to > > > > work as 6-channel > > > > > > > > According to the issue 0003427 on alsa-bugzilla, > > > > > > Oops is bad. Does it still happen with the latest HG tree? > > > This should be fixed urgently at first. > > > > > The oops won't happen with the latest HG tree. > > The reason of the oops is that there is no input pin. > > > > Now the snd_hda_input_mux_put() will check the input_mux.num_items, > > if it is equal to zero,snd_hda_input_mux_put() will return directly > > and avoid the oops. > > OK, good to hear. > > > > > I wrote a patch and the reporter helped me to test it on his > > > machine. > > > > It can support the front microphone. When switch the microphone to > > > > output model, it can mute/unmute the internal speaker with > > > jack-sensing. > > > > > > Thanks for the patch. I have little time right now for checking in > > > details, but the changes appear in fairly deep level. > > > > Yes,It's hard to support such kind of machine with current > > stac92xx_parse_auto_config().So my patch changed so many generic > > functions. :-). > > > > > I think we should rather fix the current code to handle multiple > > > headphones better than the ad-hoc fixes. Surely there will be other > > > models that require similar fixes (if you see Dell has shipped how > > > many different variants :) > > > Takashi > > > > > > > Great! > > I think this model should support: > > 1.Each headphone can mute the internal speaker. > > 2.Even the Front mic can work output jack > > 3.When mic works as output jack,it can mute the internal speaker too. > > > > Does this make sense? Thanks! > > This sounds good. > > Does Dell 1210 have both front and rear mic jacks? I don't know of > this machine, so it'd be helpful to understand if you describe the > available I/O (PINs and jacks) and expected behavior briefly here. > Since sigmatel patch uses the single detection code for every device, > we need to cover all possible scenarios with different I/O mappings. > Dell 1210 doesn't have rear mic jacks. There are three jacks in the front : "Headphone","Headphone","Microphone". According to the spec,the mic need to work as output to support 6 channels mode. Here is the picture of the jacks: http://www.notebookreview.com/assets/12583.jpg > > Thanks, > > Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
