Takashi,

Attached please find the third and final installment of separated 
patches you requested.

I have retested all 3 patches applied to ALSA 1.0.13.  (The patches were 
derived sequentially from Mercurial.)

I decided to leave out the output volume control renaming for the 
AD1986, because 1) I found the name "Master Surround" to be confusing, 
since "Surround" is used to refer to the rear channels of a multichannel 
configuration.  Also renaming "Headphone" to "Master" makes no sense for 
the AD1986, since the AD1986 has separate Headphone pins, unlike the 
AD1888, AD1980 and AD1985 for which the same pins are used for either 
the Headphone or Surround outputs.

I do plan to revisit output volume control names in the future.  The 
AD1986 uses volume controls somewhat differently than most AC '97 
Devices.  For example, normally for AC '97 devices, register 0x18 
controls DAC PCM attenuation for all channels; the AD1986 uses a special 
"ADI Mode" configuration in which register 0x18 controls DAC PCM 
attenuation only for the front channels, with other registers 
controlling DAC PCM attenuation for the other channels.

The AD1888, AD1980 and AD1985 can be configured in software to use 
either the AC '97 Compatibility mode or the ADI Mode.  (In ALSA 
currently they are fixed in ADI Mode.)  The AD1986 can use only the ADI 
Mode.

FYI: The AD1986 and AD1986A have the same Vendor ID codes, and therefore 
are indistinguishable from an AC '97 perspective.  The difference is the 
AD1986 is AC '97 only, and the AD1986A can be configured for AC '97 or 
HD Audio use.

Randy Cushman