5 files changed, 37 insertions, 2 deletions

diff --git a/include/sound/vx_core.h b/include/sound/vx_core.h
index 9821a6194caa..dbca14170615 100644
--- a/include/sound/vx_core.h
+++ b/include/sound/vx_core.h
@@ -128,6 +128,7 @@ struct snd_vx_hardware {
         unsigned int num_ins;
         unsigned int num_outs;
         unsigned int output_level_max;
+        unsigned int *output_level_db_scale;
 };
 
 /* hwdep id string */
diff --git a/sound/drivers/vx/vx_mixer.c b/sound/drivers/vx/vx_mixer.c
index c1d7fcdd1973..1613ed844ac6 100644
--- a/sound/drivers/vx/vx_mixer.c
+++ b/sound/drivers/vx/vx_mixer.c
@@ -23,6 +23,7 @@
 #include <sound/driver.h>
 #include <sound/core.h>
 #include <sound/control.h>
+#include <sound/tlv.h>
 #include <sound/vx_core.h>
 #include "vx_cmd.h"
 
@@ -455,10 +456,13 @@ static int vx_output_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_ele
 
 static struct snd_kcontrol_new vx_control_output_level = {
         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+        .access =       (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                         SNDRV_CTL_ELEM_ACCESS_TLV_READ),
         .name =         "Master Playback Volume",
         .info =         vx_output_level_info,
         .get =          vx_output_level_get,
         .put =          vx_output_level_put,
+        /* tlv will be filled later */
 };
 
 /*
@@ -712,12 +716,17 @@ static int vx_monitor_sw_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_
         return 0;
 }
 
+static DECLARE_TLV_DB_SCALE(db_scale_audio_gain, -10975, 25, 0);
+
 static struct snd_kcontrol_new vx_control_audio_gain = {
         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+        .access =       (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                         SNDRV_CTL_ELEM_ACCESS_TLV_READ),
         /* name will be filled later */
         .info =         vx_audio_gain_info,
         .get =          vx_audio_gain_get,
-        .put =          vx_audio_gain_put
+        .put =          vx_audio_gain_put,
+        .tlv = { .p = db_scale_audio_gain },
 };
 static struct snd_kcontrol_new vx_control_output_switch = {
         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -729,9 +738,12 @@ static struct snd_kcontrol_new vx_control_output_switch = {
 static struct snd_kcontrol_new vx_control_monitor_gain = {
         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
         .name =         "Monitoring Volume",
+        .access =       (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                         SNDRV_CTL_ELEM_ACCESS_TLV_READ),
         .info =         vx_audio_gain_info,     /* shared */
         .get =          vx_audio_monitor_get,
-        .put =          vx_audio_monitor_put
+        .put =          vx_audio_monitor_put,
+        .tlv = { .p = db_scale_audio_gain },
 };
 static struct snd_kcontrol_new vx_control_monitor_switch = {
         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -918,6 +930,7 @@ int snd_vx_mixer_new(struct vx_core *chip)
         for (i = 0; i < chip->hw->num_outs; i++) {
                 temp = vx_control_output_level;
                 temp.index = i;
+                temp.tlv.p = chip->hw->output_level_db_scale;
                 if ((err = snd_ctl_add(card, snd_ctl_new1(&temp, chip))) < 0)
                         return err;
         }
diff --git a/sound/pci/vx222/vx222.c b/sound/pci/vx222/vx222.c
index 9c03c6b4e490..e7cd8acab59a 100644
--- a/sound/pci/vx222/vx222.c
+++ b/sound/pci/vx222/vx222.c
@@ -26,6 +26,7 @@
 #include <linux/moduleparam.h>
 #include <sound/core.h>
 #include <sound/initval.h>
+#include <sound/tlv.h>
 #include "vx222.h"
 
 #define CARD_NAME "VX222"
@@ -72,6 +73,9 @@ MODULE_DEVICE_TABLE(pci, snd_vx222_ids);
 /*
  */
 
+static DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
+static DECLARE_TLV_DB_SCALE(db_scale_akm, -7350, 50, 0);
+
 static struct snd_vx_hardware vx222_old_hw = {
 
         .name = "VX222/Old",
@@ -81,6 +85,7 @@ static struct snd_vx_hardware vx222_old_hw = {
         .num_ins = 1,
         .num_outs = 1,
         .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
+        .output_level_db_scale = db_scale_old_vol,
 };
 
 static struct snd_vx_hardware vx222_v2_hw = {
@@ -92,6 +97,7 @@ static struct snd_vx_hardware vx222_v2_hw = {
         .num_ins = 1,
         .num_outs = 1,
         .output_level_max = VX2_AKM_LEVEL_MAX,
+        .output_level_db_scale = db_scale_akm,
 };
 
 static struct snd_vx_hardware vx222_mic_hw = {
@@ -103,6 +109,7 @@ static struct snd_vx_hardware vx222_mic_hw = {
         .num_ins = 1,
         .num_outs = 1,
         .output_level_max = VX2_AKM_LEVEL_MAX,
+        .output_level_db_scale = db_scale_akm,
 };
 
 
diff --git a/sound/pci/vx222/vx222_ops.c b/sound/pci/vx222/vx222_ops.c
index 9b6d345b83a6..5e51950e05f9 100644
--- a/sound/pci/vx222/vx222_ops.c
+++ b/sound/pci/vx222/vx222_ops.c
@@ -28,6 +28,7 @@
 
 #include <sound/core.h>
 #include <sound/control.h>
+#include <sound/tlv.h>
 #include <asm/io.h>
 #include "vx222.h"
 
@@ -845,6 +846,8 @@ static void vx2_set_input_level(struct snd_vx222 *chip)
 
 #define MIC_LEVEL_MAX   0xff
 
+static DECLARE_TLV_DB_SCALE(db_scale_mic, -6450, 50, 0);
+
 /*
  * controls API for input levels
  */
@@ -922,18 +925,24 @@ static int vx_mic_level_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_v
 
 static struct snd_kcontrol_new vx_control_input_level = {
         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+        .access =       (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                         SNDRV_CTL_ELEM_ACCESS_TLV_READ),
         .name =         "Capture Volume",
         .info =         vx_input_level_info,
         .get =          vx_input_level_get,
         .put =          vx_input_level_put,
+        .tlv = { .p = db_scale_mic },
 };
 
 static struct snd_kcontrol_new vx_control_mic_level = {
         .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+        .access =       (SNDRV_CTL_ELEM_ACCESS_READWRITE |
+                         SNDRV_CTL_ELEM_ACCESS_TLV_READ),
         .name =         "Mic Capture Volume",
         .info =         vx_mic_level_info,
         .get =          vx_mic_level_get,
         .put =          vx_mic_level_put,
+        .tlv = { .p = db_scale_mic },
 };
 
 /*
diff --git a/sound/pcmcia/vx/vxpocket.c b/sound/pcmcia/vx/vxpocket.c
index 76c85cffb40e..3089fcca800e 100644
--- a/sound/pcmcia/vx/vxpocket.c
+++ b/sound/pcmcia/vx/vxpocket.c
@@ -27,6 +27,7 @@
 #include <pcmcia/ciscode.h>
 #include <pcmcia/cisreg.h>
 #include <sound/initval.h>
+#include <sound/tlv.h>
 
 /*
  */
@@ -90,6 +91,8 @@ static int snd_vxpocket_dev_free(struct snd_device *device)
  * Only output levels can be modified
  */
 
+static DECLARE_TLV_DB_SCALE(db_scale_old_vol, -11350, 50, 0);
+
 static struct snd_vx_hardware vxpocket_hw = {
         .name = "VXPocket",
         .type = VX_TYPE_VXPOCKET,
@@ -99,6 +102,7 @@ static struct snd_vx_hardware vxpocket_hw = {
         .num_ins = 1,
         .num_outs = 1,
         .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
+        .output_level_db_scale = db_scale_old_vol,
 };      
 
 /* VX-pocket 440
@@ -120,6 +124,7 @@ static struct snd_vx_hardware vxp440_hw = {
         .num_ins = 2,
         .num_outs = 2,
         .output_level_max = VX_ANALOG_OUT_LEVEL_MAX,
+        .output_level_db_scale = db_scale_old_vol,
 };