[ALSA] Add dB scale information to ice1724 driver

Added the dB scale information to each board support code of ice1724 driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

diff --git a/sound/pci/ice1712/aureon.c b/sound/pci/ice1712/aureon.c
index 9492f3d..9e76ceb 100644 (file)
--- a/sound/pci/ice1712/aureon.c
+++ b/sound/pci/ice1712/aureon.c
@@ -60,6 +60,7 @@
 #include "ice1712.h"
 #include "envy24ht.h"
 #include "aureon.h"
+#include <sound/tlv.h>
 
 /* WM8770 registers */
 #define WM_DAC_ATTEN           0x00    /* DAC1-8 analog attenuation */
@@ -660,6 +661,12 @@ static int aureon_ac97_mmute_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e
        return change;
 }
 
+static DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1);
+static DECLARE_TLV_DB_SCALE(db_scale_wm_pcm, -6400, 50, 1);
+static DECLARE_TLV_DB_SCALE(db_scale_wm_adc, -1200, 100, 0);
+static DECLARE_TLV_DB_SCALE(db_scale_ac97_master, -4650, 150, 0);
+static DECLARE_TLV_DB_SCALE(db_scale_ac97_gain, -3450, 150, 0);
+
 /*
  * Logarithmic volume values for WM8770
  * Computed as 20 * Log10(255 / x)
@@ -1409,10 +1416,13 @@ static struct snd_kcontrol_new aureon_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Master Playback Volume",
                .info = wm_master_vol_info,
                .get = wm_master_vol_get,
-               .put = wm_master_vol_put
+               .put = wm_master_vol_put,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1424,11 +1434,14 @@ static struct snd_kcontrol_new aureon_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Front Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (2 << 8) | 0
+               .private_value = (2 << 8) | 0,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1440,11 +1453,14 @@ static struct snd_kcontrol_new aureon_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Rear Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (2 << 8) | 2
+               .private_value = (2 << 8) | 2,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1456,11 +1472,14 @@ static struct snd_kcontrol_new aureon_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Center Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (1 << 8) | 4
+               .private_value = (1 << 8) | 4,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1472,11 +1491,14 @@ static struct snd_kcontrol_new aureon_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "LFE Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (1 << 8) | 5
+               .private_value = (1 << 8) | 5,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1488,11 +1510,14 @@ static struct snd_kcontrol_new aureon_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Side Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (2 << 8) | 6
+               .private_value = (2 << 8) | 6,
+               .tlv = { .p = db_scale_wm_dac }
        }
 };
 
@@ -1506,10 +1531,13 @@ static struct snd_kcontrol_new wm_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "PCM Playback Volume",
                .info = wm_pcm_vol_info,
                .get = wm_pcm_vol_get,
-               .put = wm_pcm_vol_put
+               .put = wm_pcm_vol_put,
+               .tlv = { .p = db_scale_wm_pcm }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1520,10 +1548,13 @@ static struct snd_kcontrol_new wm_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Capture Volume",
                .info = wm_adc_vol_info,
                .get = wm_adc_vol_get,
-               .put = wm_adc_vol_put
+               .put = wm_adc_vol_put,
+               .tlv = { .p = db_scale_wm_adc }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1567,11 +1598,14 @@ static struct snd_kcontrol_new ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "AC97 Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_MASTER|AUREON_AC97_STEREO
+               .private_value = AC97_MASTER|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_master }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1583,11 +1617,14 @@ static struct snd_kcontrol_new ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "CD Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_CD|AUREON_AC97_STEREO
+               .private_value = AC97_CD|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1599,11 +1636,14 @@ static struct snd_kcontrol_new ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Aux Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_AUX|AUREON_AC97_STEREO
+               .private_value = AC97_AUX|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1615,11 +1655,14 @@ static struct snd_kcontrol_new ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Line Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_LINE|AUREON_AC97_STEREO
+               .private_value = AC97_LINE|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1631,11 +1674,14 @@ static struct snd_kcontrol_new ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Mic Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_MIC
+               .private_value = AC97_MIC,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1657,11 +1703,14 @@ static struct snd_kcontrol_new universe_ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "AC97 Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_MASTER|AUREON_AC97_STEREO
+               .private_value = AC97_MASTER|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_master }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1673,11 +1722,14 @@ static struct snd_kcontrol_new universe_ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "CD Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_AUX|AUREON_AC97_STEREO
+               .private_value = AC97_AUX|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1685,15 +1737,18 @@ static struct snd_kcontrol_new universe_ac97_controls[] __devinitdata = {
                .info = aureon_ac97_mute_info,
                .get = aureon_ac97_mute_get,
                .put = aureon_ac97_mute_put,
-               .private_value = AC97_CD,
+               .private_value = AC97_CD
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Phono Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_CD|AUREON_AC97_STEREO
+               .private_value = AC97_CD|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1705,11 +1760,14 @@ static struct snd_kcontrol_new universe_ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Line Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_LINE|AUREON_AC97_STEREO
+               .private_value = AC97_LINE|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1721,11 +1779,14 @@ static struct snd_kcontrol_new universe_ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Mic Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_MIC
+               .private_value = AC97_MIC,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -1744,11 +1805,14 @@ static struct snd_kcontrol_new universe_ac97_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Aux Playback Volume",
                .info = aureon_ac97_vol_info,
                .get = aureon_ac97_vol_get,
                .put = aureon_ac97_vol_put,
-               .private_value = AC97_VIDEO|AUREON_AC97_STEREO
+               .private_value = AC97_VIDEO|AUREON_AC97_STEREO,
+               .tlv = { .p = db_scale_ac97_gain }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,

diff --git a/sound/pci/ice1712/phase.c b/sound/pci/ice1712/phase.c
index 502da1c..e08d73f 100644 (file)
--- a/sound/pci/ice1712/phase.c
+++ b/sound/pci/ice1712/phase.c
@@ -46,6 +46,7 @@
 #include "ice1712.h"
 #include "envy24ht.h"
 #include "phase.h"
+#include <sound/tlv.h>
 
 /* WM8770 registers */
 #define WM_DAC_ATTEN           0x00    /* DAC1-8 analog attenuation */
@@ -696,6 +697,9 @@ static int phase28_oversampling_put(struct snd_kcontrol *kcontrol, struct snd_ct
        return 0;
 }
 
+static DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1);
+static DECLARE_TLV_DB_SCALE(db_scale_wm_pcm, -6400, 50, 1);
+
 static struct snd_kcontrol_new phase28_dac_controls[] __devinitdata = {
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -706,10 +710,13 @@ static struct snd_kcontrol_new phase28_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Master Playback Volume",
                .info = wm_master_vol_info,
                .get = wm_master_vol_get,
-               .put = wm_master_vol_put
+               .put = wm_master_vol_put,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -721,11 +728,14 @@ static struct snd_kcontrol_new phase28_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Front Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (2 << 8) | 0
+               .private_value = (2 << 8) | 0,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -737,11 +747,14 @@ static struct snd_kcontrol_new phase28_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Rear Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (2 << 8) | 2
+               .private_value = (2 << 8) | 2,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -753,11 +766,14 @@ static struct snd_kcontrol_new phase28_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Center Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (1 << 8) | 4
+               .private_value = (1 << 8) | 4,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -769,11 +785,14 @@ static struct snd_kcontrol_new phase28_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "LFE Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (1 << 8) | 5
+               .private_value = (1 << 8) | 5,
+               .tlv = { .p = db_scale_wm_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -785,11 +804,14 @@ static struct snd_kcontrol_new phase28_dac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Side Playback Volume",
                .info = wm_vol_info,
                .get = wm_vol_get,
                .put = wm_vol_put,
-               .private_value = (2 << 8) | 6
+               .private_value = (2 << 8) | 6,
+               .tlv = { .p = db_scale_wm_dac }
        }
 };
 
@@ -803,10 +825,13 @@ static struct snd_kcontrol_new wm_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "PCM Playback Volume",
                .info = wm_pcm_vol_info,
                .get = wm_pcm_vol_get,
-               .put = wm_pcm_vol_put
+               .put = wm_pcm_vol_put,
+               .tlv = { .p = db_scale_wm_pcm }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,

diff --git a/sound/pci/ice1712/pontis.c b/sound/pci/ice1712/pontis.c
index 0efcad9..6c74c2d 100644 (file)
--- a/sound/pci/ice1712/pontis.c
+++ b/sound/pci/ice1712/pontis.c
@@ -31,6 +31,7 @@
 
 #include <sound/core.h>
 #include <sound/info.h>
+#include <sound/tlv.h>
 
 #include "ice1712.h"
 #include "envy24ht.h"
@@ -564,6 +565,8 @@ static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_el
        return changed;
 }
 
+static DECLARE_TLV_DB_SCALE(db_scale_volume, -6400, 50, 1);
+
 /*
  * mixers
  */
@@ -571,17 +574,23 @@ static int pontis_gpio_data_put(struct snd_kcontrol *kcontrol, struct snd_ctl_el
 static struct snd_kcontrol_new pontis_controls[] __devinitdata = {
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "PCM Playback Volume",
                .info = wm_dac_vol_info,
                .get = wm_dac_vol_get,
                .put = wm_dac_vol_put,
+               .tlv = { .p = db_scale_volume },
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Capture Volume",
                .info = wm_adc_vol_info,
                .get = wm_adc_vol_get,
                .put = wm_adc_vol_put,
+               .tlv = { .p = db_scale_volume },
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,

diff --git a/sound/pci/ice1712/prodigy192.c b/sound/pci/ice1712/prodigy192.c
index fdb5cb8..41b2605 100644 (file)
--- a/sound/pci/ice1712/prodigy192.c
+++ b/sound/pci/ice1712/prodigy192.c
@@ -35,6 +35,7 @@
 #include "envy24ht.h"
 #include "prodigy192.h"
 #include "stac946x.h"
+#include <sound/tlv.h>
 
 static inline void stac9460_put(struct snd_ice1712 *ice, int reg, unsigned char val)
 {
@@ -356,6 +357,9 @@ static int aureon_oversampling_put(struct snd_kcontrol *kcontrol, struct snd_ctl
 }
 #endif
 
+static DECLARE_TLV_DB_SCALE(db_scale_dac, -19125, 75, 0);
+static DECLARE_TLV_DB_SCALE(db_scale_adc, 0, 150, 0);
+
 /*
  * mixers
  */
@@ -368,14 +372,18 @@ static struct snd_kcontrol_new stac_controls[] __devinitdata = {
                .get = stac9460_dac_mute_get,
                .put = stac9460_dac_mute_put,
                .private_value = 1,
+               .tlv = { .p = db_scale_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "Master Playback Volume",
                .info = stac9460_dac_vol_info,
                .get = stac9460_dac_vol_get,
                .put = stac9460_dac_vol_put,
                .private_value = 1,
+               .tlv = { .p = db_scale_dac }
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -387,11 +395,14 @@ static struct snd_kcontrol_new stac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "DAC Volume",
                .count = 6,
                .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,
@@ -404,11 +415,14 @@ static struct snd_kcontrol_new stac_controls[] __devinitdata = {
        },
        {
                .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+               .access = (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                          SNDRV_CTL_ELEM_ACCESS_TLV_READ),
                .name = "ADC Volume",
                .count = 1,
                .info = stac9460_adc_vol_info,
                .get = stac9460_adc_vol_get,
                .put = stac9460_adc_vol_put,
+               .tlv = { .p = db_scale_adc }
        },
 #if 0
        {