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authorClément Guedez <klem.dev@gmail.com>2015-03-18 02:26:29 +0100
committerTakashi Iwai <tiwai@suse.de>2015-03-18 08:05:48 +0100
commit16ddbe738a5bd2afe80aa10492f762f34b09cbf0 (patch)
tree2c0201a62b15f7645f04035589b6b343346bd166 /sound/pci
parentf8a8b3a835ef9e5f94163c9dc62fc2e2e375b10c (diff)
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>
Diffstat (limited to 'sound/pci')
-rw-r--r--sound/pci/ice1712/wtm.c20
1 files changed, 18 insertions, 2 deletions
diff --git a/sound/pci/ice1712/wtm.c b/sound/pci/ice1712/wtm.c
index 59483b4d6dd0..c7ffafaa1c5c 100644
--- a/sound/pci/ice1712/wtm.c
+++ b/sound/pci/ice1712/wtm.c
@@ -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 }
}
};