On 03/15/16 14:12, Timur Karaldin wrote: > Hi Peter! > > 14.03.2016 17:47, Peter Ujfalusi пишет: >> So the issue is that we have the DAPM switches controlling exactly the same >> registers. I believe if you would set the gain in a way that bit0 is 1, then >> DAPM will think that the path is disconnected. Also if you would set the >> gain and then mute and unmute the path you would have lost the gain you >> wanted to have.. The only way I can think of implementing these mixers is to >> have two sets of custom callbacks. one set is to set/get the gain and the >> other is to set/get the mute/disconnect on these. When the path is >> disconnected you should not write the gain change to the chip, but cache it >> and if the path is unmuted, you write the cached gain. When you mute the >> path you should take the set gain first, cache it, then disconnect the path. >> For these gains you should have DECLARE_TLV_DB_SCALE() and use >> SOC_SINGLE_TLV(). Make sure that the control name matches with the >> corresponding DAPM widget's name so ALSA can match them correctly. > That's not clear for me. As I understand, I need to create SOC_SINGLE_TLV() > for each gain I would like to change, with the same name as > SOC_DAPM_SINGLE_AIC3x (for example "Line1L Switch" for Line1) and make > callbacks with cached gain values. Am I right? Mostly yes, but you need to name the controls: existing switch + new gain control "Line1L Switch" + "Line1L Volume" "Line1R Switch" + "Line1R Volume" In this way alsamixer can combine them. > May be the better sollution is to change SOC_DAPM_SINGLE_AIC3x on/off switch > to other type with switch and gain control together? So it could have some > connected states with different gains and disconnected state (Something like > volume/mute control). Something based on SOC_DAPM_SINGLE_TLV should work. But that means again change in Kcontrol names. -- Péter _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
