Greetings;
Attached is support for configuring the ins and outs on a vt1618 codec. This is a substantially more complicated patch than the previous one for the vt1617a ( tis why i did that one first! :-) )
Several controls are added, they may or may not be implemented on all hardware,
some of them seem to have no effect on an MSI CN700T mainboard:
"Center/LFE Exchange"
"DC Offset Removal"
"Headphone Amp Disable"
"Back Channel Disable"
"Soft Mute Disable"
"Surround Back is Aux In"
"Universal Audio Jack 0 (Speaker)"
"Universal Audio Jack 1 (Line In)"
"Universal Audio Jack 2 (Mic In)"
Setting these 3 new controls to the settings to:
"DAC Mixed (5.1 Out)", "Reserved (5.1 Out)", "Reserved (5.1 Out)"
allows 6 channel output to be played using the following command:
aplay -Dhw:0,1 chan-id.wav
Note that 6 bits would require an impractical 64 way enum, thus the 3 controls.
Changelog Entry
====
[PATCH] ALSA: Smart 5.1 / Universal Audio Jack for VIA 1618 codec
This patch provides Universal Audio Jack support by way of 3 4 way enums that allows the user to choose 1 of 64 possible settings for the vt1618's version of what via calls 'Smart 5.1'
A new codec patch function is implemented:
patch_vt1618
Several functions are added for reading/writing the Universal Audio Jack register:
snd_ac97_vt1618_UAJ{012}_{putget}
A new pair of ac97_codec functions are added to allow for reading and writing paged out registers:
snd_ac97_read_page
snd_ac97_write_page
Signed-off-by: John Utz <john.utz@xxxxxxx>
Attachment:
vt1618Smart51UAJ.patch
Description: vt1618Smart51UAJ.patch
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