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ALSA: ice1724: ESI W192M: Add TLV support for control value in dB scale 

Add TLV support to control volume using dB scale for input and ouput on ESI W192M.

Signed-off-by: Clément Guedez <klem.dev@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clément Guedez 2015-03-18 02:26:29 +01:00 committed by Takashi Iwai
parent f8a8b3a835
commit 16ddbe738a
1 changed files with 18 additions and 2 deletions
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20
sound/pci/ice1712/wtm.c
View File

@ -29,6 +29,7 @@
#include <linux/interrupt.h>
#include <linux/init.h>
#include <sound/core.h>
#include <sound/tlv.h>
#include "ice1712.h"
#include "envy24ht.h"
@ -380,17 +381,25 @@ static int stac9460_mic_sw_put(struct snd_kcontrol *kcontrol,
return change;
}
/*Limits value in dB for fader*/
static const DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
static const DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
/*
* Control tabs
*/
static struct snd_kcontrol_new stac9640_controls[] = {
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "Master Playback Switch",
.info = stac9460_dac_mute_info,
.get = stac9460_dac_mute_get,
.put = stac9460_dac_mute_put,
.private_value = 1
.private_value = 1,
.tlv = { .p = db_scale_dac }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@ -419,11 +428,15 @@ static struct snd_kcontrol_new stac9640_controls[] = {
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "DAC Volume",
.count = 8,
.info = stac9460_dac_vol_info,
.get = stac9460_dac_vol_get,
.put = stac9460_dac_vol_put,
.tlv = { .p = db_scale_dac }
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@ -435,12 +448,15 @@ static struct snd_kcontrol_new stac9640_controls[] = {
},
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
SNDRV_CTL_ELEM_ACCESS_TLV_READ),
.name = "ADC Volume",
.count = 2,
.info = stac9460_adc_vol_info,
.get = stac9460_adc_vol_get,
.put = stac9460_adc_vol_put,
.tlv = { .p = db_scale_adc }
}
};