[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:              04-05-2006 18:42 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 - 04-03-06 19:08 
----------------------------------------------------------------------
Do the order of the control appear in the alsamixer determined by the name
?

There is no need to place those 3D controls in the front

----------------------------------------------------------------------
 Raymond - 04-05-06 18:42 
----------------------------------------------------------------------
I can group the lower 4 bands to implement the bass control and the upper 6
bands to implement the treble control. 

The new "Bass" and "Treble" will appear in kmix.

how can I add the surround of STAC9708 into kmix ?




/*
	Bass control - the lower 4 bands
*/
static int
snd_vortex_bass_treble_info(struct snd_kcontrol *kcontrol, struct
snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0x0000;
	uinfo->value.integer.max = 0x7fff;
	return 0;
}

static int
snd_vortex_bass_get(struct snd_kcontrol *kcontrol, struct
snd_ctl_elem_value *ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = vortex->bass[0];
	ucontrol->value.integer.value[1] = vortex->bass[1];
	return 0;
}

static int
snd_vortex_bass_put(struct snd_kcontrol *kcontrol, struct
snd_ctl_elem_value *ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	int changed = 0, i;
	if ( vortex->bass[0] != ucontrol->value.integer.value[0]) {
		vortex->bass[0] = ucontrol->value.integer.value[0];
		changed = 1;
	};
	if ( vortex->bass[1] != ucontrol->value.integer.value[1]) {
		vortex->bass[1] = ucontrol->value.integer.value[1];
		changed = 1;
	};
	for (i=0; i<4; i++)  {
		vortex_Eqlzr_SetLeftGain(vortex, i, vortex->bass[0]);
		vortex_Eqlzr_SetRightGain(vortex, i, vortex->bass[1]);
	}
	return changed;
}

static struct snd_kcontrol_new vortex_bass_kcontrol __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Tone Control - Bass",
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.info = snd_vortex_bass_treble_info,
	.get = snd_vortex_bass_get,
	.put = snd_vortex_bass_put
};

/*
	Treble control - the upper 6 bands
*/
static int
snd_vortex_treble_get(struct snd_kcontrol *kcontrol, struct
snd_ctl_elem_value *ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = vortex->treble[0];
	ucontrol->value.integer.value[1] = vortex->treble[1];
	return 0;
}

static int
snd_vortex_treble_put(struct snd_kcontrol *kcontrol, struct
snd_ctl_elem_value *ucontrol)
{
	vortex_t *vortex = snd_kcontrol_chip(kcontrol);
	int changed = 0, i;
	if ( vortex->treble[0] != ucontrol->value.integer.value[0]) {
		vortex->treble[0] = ucontrol->value.integer.value[0];
		changed = 1;
	}
	if ( vortex->treble[1] != ucontrol->value.integer.value[1]) {
		vortex->treble[1] = ucontrol->value.integer.value[1];
		changed = 1;
	}
	for (i=4; i<10; i++)  {
		vortex_Eqlzr_SetLeftGain(vortex, i, vortex->treble[0]);
		vortex_Eqlzr_SetRightGain(vortex, i, vortex->treble[1]);
	};
	return changed;
}

static struct snd_kcontrol_new vortex_treble_kcontrol __devinitdata = {
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Tone Control - Treble",
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.info = snd_vortex_bass_treble_info,
	.get = snd_vortex_treble_get,
	.put = snd_vortex_treble_put
};

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




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