Re: RFC: Enhance AD AC '97 mixer control names

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At Fri, 09 Mar 2007 10:53:49 -0500,
Randy Cushman wrote:
> 
> The Analog Devices multichannel AC '97 CODECs are configured in ALSA to 
> use ADI Compatibility Mode (aka AC '97 No Compatibility Mode).  Because 
> of this, the function of some "Playback" controls differ from the AC '97 
> standard.  I propose renaming the controls to more closely match their 
> function.  If no one objects, I will prepare a patch for this.  Details 
> follow:
> 
> (For each table I will identify the controls using the default AC '97 
> names.)
> 
> Standard AC '97 control functions:
> Master - Front pin attenuation
> Headphone - Headphone pin attenuation
> PCM - Multichannel DAC level
> Surround - Surround pin attenuation
> Center - Center pin attenuation
> LFE - LFE pin attenuation
> 
> Names currently assigned  for the AD1888, AD1980 and AD1985 CODECs (the 
> AD1986 currently uses the default names):
> Master - Master Surround
> Headphone - Master
> PCM - PCM
> Surround - Surround
> Center - Center
> LFE - LFE
> 
> ADI function for AD1888, AD1980 and AD1985 CODECs:
> Master - Front, Center and LFE pin attenuation
> Headphone - Surround or Headphone pin attenuation
> (These CODECs have shared pins that are used for either Surround or 
> Headphone)
> PCM - Front channel DAC level
> Surround - Surround channel DAC level
> Center - Center channel DAC level
> LFE - LFE channel DAC level
> 
> ADI function for AD1986 CODEC:
> Master - Multichannel pin attenuation
> Headphone - Headphone pin attenuation
> PCM - Front channel DAC level
> Surround - Surround channel DAC level
> Center - Center channel DAC level
> LFE - LFE channel DAC level
> 
> Proposed control names for AD1888, AD1980 and AD1985 CODECs:
> Master - Master (Front, Center and LFE)
> Headphone - Surround or Headphone
> PCM - PCM Front
> Surround - PCM Surround
> Center - PCM Center
> LFE - PCM LFE
> 
> Proposed control names for AD1986 CODEC:
> Master - Master Multichannel
> Headphone - Headphone
> PCM - PCM Front
> Surround - PCM Surround
> Center - PCM Center
> LFE - PCM LFE

Sounds good to me.


Takashi

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