Hi! For jack cable and headset detection in Nokia N900 I would need to enable/disable MIC Bias and also enable/disable TVOUT output.
All that is needed in N900 sound driver, file sound/soc/omap/rx51.c. Can you help me which functions should I call to enable/disable it correctly? In headset detection code I need to be sure that nobody (other kernel drivers or userspace via alsamixer) except current function could change Bias settings. MIC Bias is controlled by MICBIAS_CTRL in aic34 'B' part codec, file tlv320aic3x.c. And according to RX-51 Schematics TVOUT is controlled by OMAP3430 pins: TV_OUT1 and TV_VFB1. I have not found any references to them in kernel, just in omap trm. How is OMAP3430's TV_OUT1 controlled? (Existing code in Maemo 2.6.28 kernel is doing it by big hack - exports function which directly modify MICBIAS_CTRL) -- Pali Rohár pali.ro...@gmail.com
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