[ALSA - lib 0001971]: Some elements incorrectly have capture flags

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=1971> 
======================================================================
Reported By:                pzad
Assigned To:                
======================================================================
Project:                    ALSA - lib
Issue ID:                   1971
Category:                   simple mixer
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
======================================================================
Date Submitted:             03-28-2006 12:16 CEST
Last Modified:              04-13-2006 11:32 CEST
======================================================================
Summary:                    Some elements incorrectly have capture flags
Description: 
Some elemnts have capture flags even they have nothing to do with capture.
This will duplicate control in alsamixer - view ALL.

On VIA8233A + ALC650:

Simple mixer control '3D Control - Center',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 1 [7%]
Simple mixer control '3D Control - Depth',0
  Capabilities: volume volume-joined
  Playback channels: Mono
  Capture channels: Mono
  Limits: 0 - 15
  Mono: 0 [0%]

On Audigy 1:
Simple mixer control 'Bass',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 40
  Front Left: 23 [58%]
  Front Right: 23 [58%]
Simple mixer control 'Treble',0
  Capabilities: volume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 40
  Front Left: 27 [68%]
  Front Right: 27 [68%]


======================================================================

----------------------------------------------------------------------
 Raymond - 04-07-06 12:05 
----------------------------------------------------------------------
Please note that the above code is wrong.

You need the following code to route capture channel to equalizer.

static void
vortex_connect_codecrec(vortex_t * vortex, int en, unsigned char mixin0,
			unsigned char mixin1)
{
	/*
	   Enable: 0x1, 0x1
	   Channel: 0x11, 0x11
	   ADB Source address: 0x48, 0x49
	   Destination Asp4Topology_0x9c,0x98
	 */
#ifndef CHIP_AU8820
	if ( vortex->eq_route == 1 ) {
		/* connect capture channels to EQ */
		vortex_route(vortex, en, 0x11, ADB_CODECIN(0), ADB_EQIN(0));
		vortex_route(vortex, en, 0x11, ADB_CODECIN(1), ADB_EQIN(1));
		vortex_connection_adb_mixin(vortex, en, 0x11, ADB_EQOUT(0), mixin0);
		vortex_connection_adb_mixin(vortex, en, 0x11, ADB_EQOUT(1), mixin1);
		/* Lower volume, since EQ has some gain. */
		vortex_mix_setvolumebyte(vortex, mixin0, 0);
		vortex_mix_setvolumebyte(vortex, mixin1, 0);
	}
	else {
#endif
		vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(0), mixin0);
		vortex_connection_adb_mixin(vortex, en, 0x11, ADB_CODECIN(1), mixin1);
#ifndef CHIP_AU8820
	};
#endif
}

----------------------------------------------------------------------
 Raymond - 04-13-06 11:32 
----------------------------------------------------------------------
>> Anyway there is still bug, because this "Captrure" mixer element in
alsamixer >> doesn't work at all.

In View All of alsamixer

The "Playback" control and "Capture" control are side by side.

Both "Playback" and "Capture" will go up/down when we press key to
increase/decrease the "Playback" control and it affect the output.

The "Capture" control will go up/down when we press key to
increase/decrese the "Capture" but it actually don't affect the output.

Issue History
Date Modified  Username       Field                    Change              
======================================================================
03-28-06 12:16 pzad           New Issue                                    
03-30-06 11:01 Raymond        Note Added: 0009028                          
03-30-06 12:50 pzad           Note Added: 0009031                          
03-30-06 13:13 pzad           Note Added: 0009032                          
03-30-06 13:22 Raymond        Note Added: 0009033                          
03-30-06 13:29 Raymond        Note Edited: 0009033                         
03-30-06 13:41 Raymond        Note Edited: 0009033                         
03-31-06 04:36 Raymond        Note Added: 0009041                          
03-31-06 04:50 Raymond        Note Edited: 0009041                         
04-01-06 01:13 Raymond        Note Edited: 0009033                         
04-03-06 19:08 Raymond        Note Added: 0009103                          
04-05-06 18:42 Raymond        Note Added: 0009121                          
04-05-06 18:46 Raymond        Note Edited: 0009121                         
04-05-06 18:50 Raymond        Note Edited: 0009121                         
04-06-06 09:11 Raymond        Note Deleted: 0009103                        
04-06-06 09:44 Raymond        Note Added: 0009124                          
04-06-06 09:45 Raymond        Note Edited: 0009124                         
04-07-06 12:05 Raymond        Note Added: 0009136                          
04-13-06 11:32 Raymond        Note Added: 0009256                          
======================================================================




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